Add m-esr52 at 52.6.0

220 files changed, 79299 insertions, 0 deletions

diff --git a/media/libvpx/vp8/common/alloccommon.c b/media/libvpx/vp8/common/alloccommon.c
new file mode 100644
index 000000000..8dfd4ce20
--- /dev/null
+++ b/media/libvpx/vp8/common/alloccommon.c
@@ -0,0 +1,190 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "alloccommon.h"
+#include "blockd.h"
+#include "vpx_mem/vpx_mem.h"
+#include "onyxc_int.h"
+#include "findnearmv.h"
+#include "entropymode.h"
+#include "systemdependent.h"
+
+void vp8_de_alloc_frame_buffers(VP8_COMMON *oci)
+{
+    int i;
+    for (i = 0; i < NUM_YV12_BUFFERS; i++)
+        vp8_yv12_de_alloc_frame_buffer(&oci->yv12_fb[i]);
+
+    vp8_yv12_de_alloc_frame_buffer(&oci->temp_scale_frame);
+#if CONFIG_POSTPROC
+    vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer);
+    if (oci->post_proc_buffer_int_used)
+        vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer_int);
+
+    vpx_free(oci->pp_limits_buffer);
+    oci->pp_limits_buffer = NULL;
+#endif
+
+    vpx_free(oci->above_context);
+    vpx_free(oci->mip);
+#if CONFIG_ERROR_CONCEALMENT
+    vpx_free(oci->prev_mip);
+    oci->prev_mip = NULL;
+#endif
+
+    oci->above_context = NULL;
+    oci->mip = NULL;
+}
+
+int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
+{
+    int i;
+
+    vp8_de_alloc_frame_buffers(oci);
+
+    /* our internal buffers are always multiples of 16 */
+    if ((width & 0xf) != 0)
+        width += 16 - (width & 0xf);
+
+    if ((height & 0xf) != 0)
+        height += 16 - (height & 0xf);
+
+
+    for (i = 0; i < NUM_YV12_BUFFERS; i++)
+    {
+        oci->fb_idx_ref_cnt[i] = 0;
+        oci->yv12_fb[i].flags = 0;
+        if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i], width, height, VP8BORDERINPIXELS) < 0)
+            goto allocation_fail;
+    }
+
+    oci->new_fb_idx = 0;
+    oci->lst_fb_idx = 1;
+    oci->gld_fb_idx = 2;
+    oci->alt_fb_idx = 3;
+
+    oci->fb_idx_ref_cnt[0] = 1;
+    oci->fb_idx_ref_cnt[1] = 1;
+    oci->fb_idx_ref_cnt[2] = 1;
+    oci->fb_idx_ref_cnt[3] = 1;
+
+    if (vp8_yv12_alloc_frame_buffer(&oci->temp_scale_frame,   width, 16, VP8BORDERINPIXELS) < 0)
+        goto allocation_fail;
+
+    oci->mb_rows = height >> 4;
+    oci->mb_cols = width >> 4;
+    oci->MBs = oci->mb_rows * oci->mb_cols;
+    oci->mode_info_stride = oci->mb_cols + 1;
+    oci->mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));
+
+    if (!oci->mip)
+        goto allocation_fail;
+
+    oci->mi = oci->mip + oci->mode_info_stride + 1;
+
+    /* Allocation of previous mode info will be done in vp8_decode_frame()
+     * as it is a decoder only data */
+
+    oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);
+
+    if (!oci->above_context)
+        goto allocation_fail;
+
+#if CONFIG_POSTPROC
+    if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height, VP8BORDERINPIXELS) < 0)
+        goto allocation_fail;
+
+    oci->post_proc_buffer_int_used = 0;
+    memset(&oci->postproc_state, 0, sizeof(oci->postproc_state));
+    memset(oci->post_proc_buffer.buffer_alloc, 128,
+           oci->post_proc_buffer.frame_size);
+
+    /* Allocate buffer to store post-processing filter coefficients.
+     *
+     * Note: Round up mb_cols to support SIMD reads
+     */
+    oci->pp_limits_buffer = vpx_memalign(16, 24 * ((oci->mb_cols + 1) & ~1));
+    if (!oci->pp_limits_buffer)
+        goto allocation_fail;
+#endif
+
+    return 0;
+
+allocation_fail:
+    vp8_de_alloc_frame_buffers(oci);
+    return 1;
+}
+
+void vp8_setup_version(VP8_COMMON *cm)
+{
+    switch (cm->version)
+    {
+    case 0:
+        cm->no_lpf = 0;
+        cm->filter_type = NORMAL_LOOPFILTER;
+        cm->use_bilinear_mc_filter = 0;
+        cm->full_pixel = 0;
+        break;
+    case 1:
+        cm->no_lpf = 0;
+        cm->filter_type = SIMPLE_LOOPFILTER;
+        cm->use_bilinear_mc_filter = 1;
+        cm->full_pixel = 0;
+        break;
+    case 2:
+        cm->no_lpf = 1;
+        cm->filter_type = NORMAL_LOOPFILTER;
+        cm->use_bilinear_mc_filter = 1;
+        cm->full_pixel = 0;
+        break;
+    case 3:
+        cm->no_lpf = 1;
+        cm->filter_type = SIMPLE_LOOPFILTER;
+        cm->use_bilinear_mc_filter = 1;
+        cm->full_pixel = 1;
+        break;
+    default:
+        /*4,5,6,7 are reserved for future use*/
+        cm->no_lpf = 0;
+        cm->filter_type = NORMAL_LOOPFILTER;
+        cm->use_bilinear_mc_filter = 0;
+        cm->full_pixel = 0;
+        break;
+    }
+}
+void vp8_create_common(VP8_COMMON *oci)
+{
+    vp8_machine_specific_config(oci);
+
+    vp8_init_mbmode_probs(oci);
+    vp8_default_bmode_probs(oci->fc.bmode_prob);
+
+    oci->mb_no_coeff_skip = 1;
+    oci->no_lpf = 0;
+    oci->filter_type = NORMAL_LOOPFILTER;
+    oci->use_bilinear_mc_filter = 0;
+    oci->full_pixel = 0;
+    oci->multi_token_partition = ONE_PARTITION;
+    oci->clamp_type = RECON_CLAMP_REQUIRED;
+
+    /* Initialize reference frame sign bias structure to defaults */
+    memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));
+
+    /* Default disable buffer to buffer copying */
+    oci->copy_buffer_to_gf = 0;
+    oci->copy_buffer_to_arf = 0;
+}
+
+void vp8_remove_common(VP8_COMMON *oci)
+{
+    vp8_de_alloc_frame_buffers(oci);
+}
diff --git a/media/libvpx/vp8/common/alloccommon.h b/media/libvpx/vp8/common/alloccommon.h
new file mode 100644
index 000000000..93e99d76b
--- /dev/null
+++ b/media/libvpx/vp8/common/alloccommon.h
@@ -0,0 +1,31 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ALLOCCOMMON_H_
+#define VP8_COMMON_ALLOCCOMMON_H_
+
+#include "onyxc_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_create_common(VP8_COMMON *oci);
+void vp8_remove_common(VP8_COMMON *oci);
+void vp8_de_alloc_frame_buffers(VP8_COMMON *oci);
+int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height);
+void vp8_setup_version(VP8_COMMON *oci);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_ALLOCCOMMON_H_
diff --git a/media/libvpx/vp8/common/arm/armv6/bilinearfilter_v6.asm b/media/libvpx/vp8/common/arm/armv6/bilinearfilter_v6.asm
new file mode 100644
index 000000000..9704b4210
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/bilinearfilter_v6.asm
@@ -0,0 +1,237 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_filter_block2d_bil_first_pass_armv6|
+    EXPORT  |vp8_filter_block2d_bil_second_pass_armv6|
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+
+;-------------------------------------
+; r0    unsigned char  *src_ptr,
+; r1    unsigned short *dst_ptr,
+; r2    unsigned int    src_pitch,
+; r3    unsigned int    height,
+; stack unsigned int    width,
+; stack const short    *vp8_filter
+;-------------------------------------
+; The output is transposed stroed in output array to make it easy for second pass filtering.
+|vp8_filter_block2d_bil_first_pass_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #40]                  ; vp8_filter address
+    ldr     r4, [sp, #36]                   ; width
+
+    mov     r12, r3                         ; outer-loop counter
+
+    add     r7, r2, r4                      ; preload next row
+    pld     [r0, r7]
+
+    sub     r2, r2, r4                      ; src increment for height loop
+
+    ldr     r5, [r11]                       ; load up filter coefficients
+
+    mov     r3, r3, lsl #1                  ; height*2
+    add     r3, r3, #2                      ; plus 2 to make output buffer 4-bit aligned since height is actually (height+1)
+
+    mov     r11, r1                         ; save dst_ptr for each row
+
+    cmp     r5, #128                        ; if filter coef = 128, then skip the filter
+    beq     bil_null_1st_filter
+
+|bil_height_loop_1st_v6|
+    ldrb    r6, [r0]                        ; load source data
+    ldrb    r7, [r0, #1]
+    ldrb    r8, [r0, #2]
+    mov     lr, r4, lsr #2                  ; 4-in-parellel loop counter
+
+|bil_width_loop_1st_v6|
+    ldrb    r9, [r0, #3]
+    ldrb    r10, [r0, #4]
+
+    pkhbt   r6, r6, r7, lsl #16             ; src[1] | src[0]
+    pkhbt   r7, r7, r8, lsl #16             ; src[2] | src[1]
+
+    smuad   r6, r6, r5                      ; apply the filter
+    pkhbt   r8, r8, r9, lsl #16             ; src[3] | src[2]
+    smuad   r7, r7, r5
+    pkhbt   r9, r9, r10, lsl #16            ; src[4] | src[3]
+
+    smuad   r8, r8, r5
+    smuad   r9, r9, r5
+
+    add     r0, r0, #4
+    subs    lr, lr, #1
+
+    add     r6, r6, #0x40                   ; round_shift_and_clamp
+    add     r7, r7, #0x40
+    usat    r6, #16, r6, asr #7
+    usat    r7, #16, r7, asr #7
+
+    strh    r6, [r1], r3                    ; result is transposed and stored
+
+    add     r8, r8, #0x40                   ; round_shift_and_clamp
+    strh    r7, [r1], r3
+    add     r9, r9, #0x40
+    usat    r8, #16, r8, asr #7
+    usat    r9, #16, r9, asr #7
+
+    strh    r8, [r1], r3                    ; result is transposed and stored
+
+    ldrneb  r6, [r0]                        ; load source data
+    strh    r9, [r1], r3
+
+    ldrneb  r7, [r0, #1]
+    ldrneb  r8, [r0, #2]
+
+    bne     bil_width_loop_1st_v6
+
+    add     r0, r0, r2                      ; move to next input row
+    subs    r12, r12, #1
+
+    add     r9, r2, r4, lsl #1              ; adding back block width
+    pld     [r0, r9]                        ; preload next row
+
+    add     r11, r11, #2                    ; move over to next column
+    mov     r1, r11
+
+    bne     bil_height_loop_1st_v6
+
+    ldmia   sp!, {r4 - r11, pc}
+
+|bil_null_1st_filter|
+|bil_height_loop_null_1st|
+    mov     lr, r4, lsr #2                  ; loop counter
+
+|bil_width_loop_null_1st|
+    ldrb    r6, [r0]                        ; load data
+    ldrb    r7, [r0, #1]
+    ldrb    r8, [r0, #2]
+    ldrb    r9, [r0, #3]
+
+    strh    r6, [r1], r3                    ; store it to immediate buffer
+    add     r0, r0, #4
+    strh    r7, [r1], r3
+    subs    lr, lr, #1
+    strh    r8, [r1], r3
+    strh    r9, [r1], r3
+
+    bne     bil_width_loop_null_1st
+
+    subs    r12, r12, #1
+    add     r0, r0, r2                      ; move to next input line
+    add     r11, r11, #2                    ; move over to next column
+    mov     r1, r11
+
+    bne     bil_height_loop_null_1st
+
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP  ; |vp8_filter_block2d_bil_first_pass_armv6|
+
+
+;---------------------------------
+; r0    unsigned short *src_ptr,
+; r1    unsigned char  *dst_ptr,
+; r2    int             dst_pitch,
+; r3    unsigned int    height,
+; stack unsigned int    width,
+; stack const short    *vp8_filter
+;---------------------------------
+|vp8_filter_block2d_bil_second_pass_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #40]                  ; vp8_filter address
+    ldr     r4, [sp, #36]                   ; width
+
+    ldr     r5, [r11]                       ; load up filter coefficients
+    mov     r12, r4                         ; outer-loop counter = width, since we work on transposed data matrix
+    mov     r11, r1
+
+    cmp     r5, #128                        ; if filter coef = 128, then skip the filter
+    beq     bil_null_2nd_filter
+
+|bil_height_loop_2nd|
+    ldr     r6, [r0]                        ; load the data
+    ldr     r8, [r0, #4]
+    ldrh    r10, [r0, #8]
+    mov     lr, r3, lsr #2                  ; loop counter
+
+|bil_width_loop_2nd|
+    pkhtb   r7, r6, r8                      ; src[1] | src[2]
+    pkhtb   r9, r8, r10                     ; src[3] | src[4]
+
+    smuad   r6, r6, r5                      ; apply filter
+    smuad   r8, r8, r5                      ; apply filter
+
+    subs    lr, lr, #1
+
+    smuadx  r7, r7, r5                      ; apply filter
+    smuadx  r9, r9, r5                      ; apply filter
+
+    add     r0, r0, #8
+
+    add     r6, r6, #0x40                   ; round_shift_and_clamp
+    add     r7, r7, #0x40
+    usat    r6, #8, r6, asr #7
+    usat    r7, #8, r7, asr #7
+    strb    r6, [r1], r2                    ; the result is transposed back and stored
+
+    add     r8, r8, #0x40                   ; round_shift_and_clamp
+    strb    r7, [r1], r2
+    add     r9, r9, #0x40
+    usat    r8, #8, r8, asr #7
+    usat    r9, #8, r9, asr #7
+    strb    r8, [r1], r2                    ; the result is transposed back and stored
+
+    ldrne   r6, [r0]                        ; load data
+    strb    r9, [r1], r2
+    ldrne   r8, [r0, #4]
+    ldrneh  r10, [r0, #8]
+
+    bne     bil_width_loop_2nd
+
+    subs    r12, r12, #1
+    add     r0, r0, #4                      ; update src for next row
+    add     r11, r11, #1
+    mov     r1, r11
+
+    bne     bil_height_loop_2nd
+    ldmia   sp!, {r4 - r11, pc}
+
+|bil_null_2nd_filter|
+|bil_height_loop_null_2nd|
+    mov     lr, r3, lsr #2
+
+|bil_width_loop_null_2nd|
+    ldr     r6, [r0], #4                    ; load data
+    subs    lr, lr, #1
+    ldr     r8, [r0], #4
+
+    strb    r6, [r1], r2                    ; store data
+    mov     r7, r6, lsr #16
+    strb    r7, [r1], r2
+    mov     r9, r8, lsr #16
+    strb    r8, [r1], r2
+    strb    r9, [r1], r2
+
+    bne     bil_width_loop_null_2nd
+
+    subs    r12, r12, #1
+    add     r0, r0, #4
+    add     r11, r11, #1
+    mov     r1, r11
+
+    bne     bil_height_loop_null_2nd
+
+    ldmia   sp!, {r4 - r11, pc}
+    ENDP  ; |vp8_filter_block2d_second_pass_armv6|
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/copymem16x16_v6.asm b/media/libvpx/vp8/common/arm/armv6/copymem16x16_v6.asm
new file mode 100644
index 000000000..abf048c2f
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/copymem16x16_v6.asm
@@ -0,0 +1,186 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_copy_mem16x16_v6|
+    ; ARM
+    ; REQUIRE8
+    ; PRESERVE8
+
+    AREA    Block, CODE, READONLY ; name this block of code
+;void copy_mem16x16_v6( unsigned char *src, int src_stride, unsigned char *dst, int dst_stride)
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+|vp8_copy_mem16x16_v6| PROC
+    stmdb       sp!, {r4 - r7}
+    ;push   {r4-r7}
+
+    ;preload
+    pld     [r0, #31]                ; preload for next 16x16 block
+
+    ands    r4, r0, #15
+    beq     copy_mem16x16_fast
+
+    ands    r4, r0, #7
+    beq     copy_mem16x16_8
+
+    ands    r4, r0, #3
+    beq     copy_mem16x16_4
+
+    ;copy one byte each time
+    ldrb    r4, [r0]
+    ldrb    r5, [r0, #1]
+    ldrb    r6, [r0, #2]
+    ldrb    r7, [r0, #3]
+
+    mov     r12, #16
+
+copy_mem16x16_1_loop
+    strb    r4, [r2]
+    strb    r5, [r2, #1]
+    strb    r6, [r2, #2]
+    strb    r7, [r2, #3]
+
+    ldrb    r4, [r0, #4]
+    ldrb    r5, [r0, #5]
+    ldrb    r6, [r0, #6]
+    ldrb    r7, [r0, #7]
+
+    subs    r12, r12, #1
+
+    strb    r4, [r2, #4]
+    strb    r5, [r2, #5]
+    strb    r6, [r2, #6]
+    strb    r7, [r2, #7]
+
+    ldrb    r4, [r0, #8]
+    ldrb    r5, [r0, #9]
+    ldrb    r6, [r0, #10]
+    ldrb    r7, [r0, #11]
+
+    strb    r4, [r2, #8]
+    strb    r5, [r2, #9]
+    strb    r6, [r2, #10]
+    strb    r7, [r2, #11]
+
+    ldrb    r4, [r0, #12]
+    ldrb    r5, [r0, #13]
+    ldrb    r6, [r0, #14]
+    ldrb    r7, [r0, #15]
+
+    add     r0, r0, r1
+
+    strb    r4, [r2, #12]
+    strb    r5, [r2, #13]
+    strb    r6, [r2, #14]
+    strb    r7, [r2, #15]
+
+    add     r2, r2, r3
+
+    ldrneb  r4, [r0]
+    ldrneb  r5, [r0, #1]
+    ldrneb  r6, [r0, #2]
+    ldrneb  r7, [r0, #3]
+
+    pld     [r0, #31]               ; preload for next 16x16 block
+
+    bne     copy_mem16x16_1_loop
+
+    ldmia       sp!, {r4 - r7}
+    ;pop        {r4-r7}
+    mov     pc, lr
+
+;copy 4 bytes each time
+copy_mem16x16_4
+    ldr     r4, [r0]
+    ldr     r5, [r0, #4]
+    ldr     r6, [r0, #8]
+    ldr     r7, [r0, #12]
+
+    mov     r12, #16
+
+copy_mem16x16_4_loop
+    subs    r12, r12, #1
+    add     r0, r0, r1
+
+    str     r4, [r2]
+    str     r5, [r2, #4]
+    str     r6, [r2, #8]
+    str     r7, [r2, #12]
+
+    add     r2, r2, r3
+
+    ldrne   r4, [r0]
+    ldrne   r5, [r0, #4]
+    ldrne   r6, [r0, #8]
+    ldrne   r7, [r0, #12]
+
+    pld     [r0, #31]               ; preload for next 16x16 block
+
+    bne     copy_mem16x16_4_loop
+
+    ldmia       sp!, {r4 - r7}
+    ;pop        {r4-r7}
+    mov     pc, lr
+
+;copy 8 bytes each time
+copy_mem16x16_8
+    sub     r1, r1, #16
+    sub     r3, r3, #16
+
+    mov     r12, #16
+
+copy_mem16x16_8_loop
+    ldmia   r0!, {r4-r5}
+    ;ldm        r0, {r4-r5}
+    ldmia   r0!, {r6-r7}
+
+    add     r0, r0, r1
+
+    stmia   r2!, {r4-r5}
+    subs    r12, r12, #1
+    ;stm        r2, {r4-r5}
+    stmia   r2!, {r6-r7}
+
+    add     r2, r2, r3
+
+    pld     [r0, #31]               ; preload for next 16x16 block
+    bne     copy_mem16x16_8_loop
+
+    ldmia       sp!, {r4 - r7}
+    ;pop        {r4-r7}
+    mov     pc, lr
+
+;copy 16 bytes each time
+copy_mem16x16_fast
+    ;sub        r1, r1, #16
+    ;sub        r3, r3, #16
+
+    mov     r12, #16
+
+copy_mem16x16_fast_loop
+    ldmia   r0, {r4-r7}
+    ;ldm        r0, {r4-r7}
+    add     r0, r0, r1
+
+    subs    r12, r12, #1
+    stmia   r2, {r4-r7}
+    ;stm        r2, {r4-r7}
+    add     r2, r2, r3
+
+    pld     [r0, #31]               ; preload for next 16x16 block
+    bne     copy_mem16x16_fast_loop
+
+    ldmia       sp!, {r4 - r7}
+    ;pop        {r4-r7}
+    mov     pc, lr
+
+    ENDP  ; |vp8_copy_mem16x16_v6|
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/copymem8x4_v6.asm b/media/libvpx/vp8/common/arm/armv6/copymem8x4_v6.asm
new file mode 100644
index 000000000..d8362ef05
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/copymem8x4_v6.asm
@@ -0,0 +1,128 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_copy_mem8x4_v6|
+    ; ARM
+    ; REQUIRE8
+    ; PRESERVE8
+
+    AREA    Block, CODE, READONLY ; name this block of code
+;void vp8_copy_mem8x4_v6( unsigned char *src, int src_stride, unsigned char *dst, int dst_stride)
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+|vp8_copy_mem8x4_v6| PROC
+    ;push   {r4-r5}
+    stmdb  sp!, {r4-r5}
+
+    ;preload
+    pld     [r0]
+    pld     [r0, r1]
+    pld     [r0, r1, lsl #1]
+
+    ands    r4, r0, #7
+    beq     copy_mem8x4_fast
+
+    ands    r4, r0, #3
+    beq     copy_mem8x4_4
+
+    ;copy 1 byte each time
+    ldrb    r4, [r0]
+    ldrb    r5, [r0, #1]
+
+    mov     r12, #4
+
+copy_mem8x4_1_loop
+    strb    r4, [r2]
+    strb    r5, [r2, #1]
+
+    ldrb    r4, [r0, #2]
+    ldrb    r5, [r0, #3]
+
+    subs    r12, r12, #1
+
+    strb    r4, [r2, #2]
+    strb    r5, [r2, #3]
+
+    ldrb    r4, [r0, #4]
+    ldrb    r5, [r0, #5]
+
+    strb    r4, [r2, #4]
+    strb    r5, [r2, #5]
+
+    ldrb    r4, [r0, #6]
+    ldrb    r5, [r0, #7]
+
+    add     r0, r0, r1
+
+    strb    r4, [r2, #6]
+    strb    r5, [r2, #7]
+
+    add     r2, r2, r3
+
+    ldrneb  r4, [r0]
+    ldrneb  r5, [r0, #1]
+
+    bne     copy_mem8x4_1_loop
+
+    ldmia       sp!, {r4 - r5}
+    ;pop        {r4-r5}
+    mov     pc, lr
+
+;copy 4 bytes each time
+copy_mem8x4_4
+    ldr     r4, [r0]
+    ldr     r5, [r0, #4]
+
+    mov     r12, #4
+
+copy_mem8x4_4_loop
+    subs    r12, r12, #1
+    add     r0, r0, r1
+
+    str     r4, [r2]
+    str     r5, [r2, #4]
+
+    add     r2, r2, r3
+
+    ldrne   r4, [r0]
+    ldrne   r5, [r0, #4]
+
+    bne     copy_mem8x4_4_loop
+
+    ldmia  sp!, {r4-r5}
+    ;pop        {r4-r5}
+    mov     pc, lr
+
+;copy 8 bytes each time
+copy_mem8x4_fast
+    ;sub        r1, r1, #8
+    ;sub        r3, r3, #8
+
+    mov     r12, #4
+
+copy_mem8x4_fast_loop
+    ldmia   r0, {r4-r5}
+    ;ldm        r0, {r4-r5}
+    add     r0, r0, r1
+
+    subs    r12, r12, #1
+    stmia   r2, {r4-r5}
+    ;stm        r2, {r4-r5}
+    add     r2, r2, r3
+
+    bne     copy_mem8x4_fast_loop
+
+    ldmia  sp!, {r4-r5}
+    ;pop        {r4-r5}
+    mov     pc, lr
+
+    ENDP  ; |vp8_copy_mem8x4_v6|
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/copymem8x8_v6.asm b/media/libvpx/vp8/common/arm/armv6/copymem8x8_v6.asm
new file mode 100644
index 000000000..c6a60c610
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/copymem8x8_v6.asm
@@ -0,0 +1,128 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_copy_mem8x8_v6|
+    ; ARM
+    ; REQUIRE8
+    ; PRESERVE8
+
+    AREA    Block, CODE, READONLY ; name this block of code
+;void copy_mem8x8_v6( unsigned char *src, int src_stride, unsigned char *dst, int dst_stride)
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+|vp8_copy_mem8x8_v6| PROC
+    ;push   {r4-r5}
+    stmdb  sp!, {r4-r5}
+
+    ;preload
+    pld     [r0]
+    pld     [r0, r1]
+    pld     [r0, r1, lsl #1]
+
+    ands    r4, r0, #7
+    beq     copy_mem8x8_fast
+
+    ands    r4, r0, #3
+    beq     copy_mem8x8_4
+
+    ;copy 1 byte each time
+    ldrb    r4, [r0]
+    ldrb    r5, [r0, #1]
+
+    mov     r12, #8
+
+copy_mem8x8_1_loop
+    strb    r4, [r2]
+    strb    r5, [r2, #1]
+
+    ldrb    r4, [r0, #2]
+    ldrb    r5, [r0, #3]
+
+    subs    r12, r12, #1
+
+    strb    r4, [r2, #2]
+    strb    r5, [r2, #3]
+
+    ldrb    r4, [r0, #4]
+    ldrb    r5, [r0, #5]
+
+    strb    r4, [r2, #4]
+    strb    r5, [r2, #5]
+
+    ldrb    r4, [r0, #6]
+    ldrb    r5, [r0, #7]
+
+    add     r0, r0, r1
+
+    strb    r4, [r2, #6]
+    strb    r5, [r2, #7]
+
+    add     r2, r2, r3
+
+    ldrneb  r4, [r0]
+    ldrneb  r5, [r0, #1]
+
+    bne     copy_mem8x8_1_loop
+
+    ldmia       sp!, {r4 - r5}
+    ;pop        {r4-r5}
+    mov     pc, lr
+
+;copy 4 bytes each time
+copy_mem8x8_4
+    ldr     r4, [r0]
+    ldr     r5, [r0, #4]
+
+    mov     r12, #8
+
+copy_mem8x8_4_loop
+    subs    r12, r12, #1
+    add     r0, r0, r1
+
+    str     r4, [r2]
+    str     r5, [r2, #4]
+
+    add     r2, r2, r3
+
+    ldrne   r4, [r0]
+    ldrne   r5, [r0, #4]
+
+    bne     copy_mem8x8_4_loop
+
+    ldmia       sp!, {r4 - r5}
+    ;pop        {r4-r5}
+    mov     pc, lr
+
+;copy 8 bytes each time
+copy_mem8x8_fast
+    ;sub        r1, r1, #8
+    ;sub        r3, r3, #8
+
+    mov     r12, #8
+
+copy_mem8x8_fast_loop
+    ldmia   r0, {r4-r5}
+    ;ldm        r0, {r4-r5}
+    add     r0, r0, r1
+
+    subs    r12, r12, #1
+    stmia   r2, {r4-r5}
+    ;stm        r2, {r4-r5}
+    add     r2, r2, r3
+
+    bne     copy_mem8x8_fast_loop
+
+    ldmia  sp!, {r4-r5}
+    ;pop        {r4-r5}
+    mov     pc, lr
+
+    ENDP  ; |vp8_copy_mem8x8_v6|
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/dc_only_idct_add_v6.asm b/media/libvpx/vp8/common/arm/armv6/dc_only_idct_add_v6.asm
new file mode 100644
index 000000000..9aa659fa7
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/dc_only_idct_add_v6.asm
@@ -0,0 +1,70 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license and patent
+;  grant that can be found in the LICENSE file in the root of the source
+;  tree. All contributing project authors may be found in the AUTHORS
+;  file in the root of the source tree.
+;
+
+    EXPORT  |vp8_dc_only_idct_add_v6|
+
+    AREA    |.text|, CODE, READONLY
+
+;void vp8_dc_only_idct_add_c(short input_dc, unsigned char *pred_ptr,
+;                            int pred_stride, unsigned char *dst_ptr,
+;                            int dst_stride)
+; r0  input_dc
+; r1  pred_ptr
+; r2  pred_stride
+; r3  dst_ptr
+; sp  dst_stride
+
+|vp8_dc_only_idct_add_v6| PROC
+    stmdb       sp!, {r4 - r7}
+
+    add         r0, r0, #4                ; input_dc += 4
+    ldr         r12, c0x0000FFFF
+    ldr         r4, [r1], r2
+    and         r0, r12, r0, asr #3       ; input_dc >> 3 + mask
+    ldr         r6, [r1], r2
+    orr         r0, r0, r0, lsl #16       ; a1 | a1
+
+    ldr         r12, [sp, #16]            ; dst stride
+
+    uxtab16     r5, r0, r4                ; a1+2 | a1+0
+    uxtab16     r4, r0, r4, ror #8        ; a1+3 | a1+1
+    uxtab16     r7, r0, r6
+    uxtab16     r6, r0, r6, ror #8
+    usat16      r5, #8, r5
+    usat16      r4, #8, r4
+    usat16      r7, #8, r7
+    usat16      r6, #8, r6
+    orr         r5, r5, r4, lsl #8
+    orr         r7, r7, r6, lsl #8
+    ldr         r4, [r1], r2
+    str         r5, [r3], r12
+    ldr         r6, [r1]
+    str         r7, [r3], r12
+
+    uxtab16     r5, r0, r4
+    uxtab16     r4, r0, r4, ror #8
+    uxtab16     r7, r0, r6
+    uxtab16     r6, r0, r6, ror #8
+    usat16      r5, #8, r5
+    usat16      r4, #8, r4
+    usat16      r7, #8, r7
+    usat16      r6, #8, r6
+    orr         r5, r5, r4, lsl #8
+    orr         r7, r7, r6, lsl #8
+    str         r5, [r3], r12
+    str         r7, [r3]
+
+    ldmia       sp!, {r4 - r7}
+    bx          lr
+
+    ENDP  ; |vp8_dc_only_idct_add_v6|
+
+; Constant Pool
+c0x0000FFFF DCD 0x0000FFFF
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/dequant_idct_v6.asm b/media/libvpx/vp8/common/arm/armv6/dequant_idct_v6.asm
new file mode 100644
index 000000000..db48ded58
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/dequant_idct_v6.asm
@@ -0,0 +1,190 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license and patent
+;  grant that can be found in the LICENSE file in the root of the source
+;  tree. All contributing project authors may be found in the AUTHORS
+;  file in the root of the source tree.
+;
+
+    EXPORT |vp8_dequant_idct_add_v6|
+
+    AREA |.text|, CODE, READONLY
+;void vp8_dequant_idct_v6(short *input, short *dq,
+;                         unsigned char *dest, int stride)
+; r0 = q
+; r1 = dq
+; r2 = dst
+; r3 = stride
+
+|vp8_dequant_idct_add_v6| PROC
+    stmdb   sp!, {r4-r11, lr}
+
+    ldr     r4, [r0]                ;input
+    ldr     r5, [r1], #4            ;dq
+
+    sub     sp, sp, #4
+    str     r3, [sp]
+
+    mov     r12, #4
+
+vp8_dequant_add_loop
+    smulbb  r6, r4, r5
+    smultt  r7, r4, r5
+
+    ldr     r4, [r0, #4]            ;input
+    ldr     r5, [r1], #4            ;dq
+
+    strh    r6, [r0], #2
+    strh    r7, [r0], #2
+
+    smulbb  r6, r4, r5
+    smultt  r7, r4, r5
+
+    subs    r12, r12, #1
+
+    ldrne   r4, [r0, #4]
+    ldrne   r5, [r1], #4
+
+    strh    r6, [r0], #2
+    strh    r7, [r0], #2
+
+    bne     vp8_dequant_add_loop
+
+    sub     r0, r0, #32
+    mov     r1, r0
+
+; short_idct4x4llm_v6_dual
+    ldr     r3, cospi8sqrt2minus1
+    ldr     r4, sinpi8sqrt2
+    ldr     r6, [r0, #8]
+    mov     r5, #2
+vp8_dequant_idct_loop1_v6
+    ldr     r12, [r0, #24]
+    ldr     r14, [r0, #16]
+    smulwt  r9, r3, r6
+    smulwb  r7, r3, r6
+    smulwt  r10, r4, r6
+    smulwb  r8, r4, r6
+    pkhbt   r7, r7, r9, lsl #16
+    smulwt  r11, r3, r12
+    pkhbt   r8, r8, r10, lsl #16
+    uadd16  r6, r6, r7
+    smulwt  r7, r4, r12
+    smulwb  r9, r3, r12
+    smulwb  r10, r4, r12
+    subs    r5, r5, #1
+    pkhbt   r9, r9, r11, lsl #16
+    ldr     r11, [r0], #4
+    pkhbt   r10, r10, r7, lsl #16
+    uadd16  r7, r12, r9
+    usub16  r7, r8, r7
+    uadd16  r6, r6, r10
+    uadd16  r10, r11, r14
+    usub16  r8, r11, r14
+    uadd16  r9, r10, r6
+    usub16  r10, r10, r6
+    uadd16  r6, r8, r7
+    usub16  r7, r8, r7
+    str     r6, [r1, #8]
+    ldrne   r6, [r0, #8]
+    str     r7, [r1, #16]
+    str     r10, [r1, #24]
+    str     r9, [r1], #4
+    bne     vp8_dequant_idct_loop1_v6
+
+    mov     r5, #2
+    sub     r0, r1, #8
+vp8_dequant_idct_loop2_v6
+    ldr     r6, [r0], #4
+    ldr     r7, [r0], #4
+    ldr     r8, [r0], #4
+    ldr     r9, [r0], #4
+    smulwt  r1, r3, r6
+    smulwt  r12, r4, r6
+    smulwt  lr, r3, r8
+    smulwt  r10, r4, r8
+    pkhbt   r11, r8, r6, lsl #16
+    pkhbt   r1, lr, r1, lsl #16
+    pkhbt   r12, r10, r12, lsl #16
+    pkhtb   r6, r6, r8, asr #16
+    uadd16  r6, r1, r6
+    pkhbt   lr, r9, r7, lsl #16
+    uadd16  r10, r11, lr
+    usub16  lr, r11, lr
+    pkhtb   r8, r7, r9, asr #16
+    subs    r5, r5, #1
+    smulwt  r1, r3, r8
+    smulwb  r7, r3, r8
+    smulwt  r11, r4, r8
+    smulwb  r9, r4, r8
+    pkhbt   r1, r7, r1, lsl #16
+    uadd16  r8, r1, r8
+    pkhbt   r11, r9, r11, lsl #16
+    usub16  r1, r12, r8
+    uadd16  r8, r11, r6
+    ldr     r9, c0x00040004
+    ldr     r12, [sp]               ; get stride from stack
+    uadd16  r6, r10, r8
+    usub16  r7, r10, r8
+    uadd16  r7, r7, r9
+    uadd16  r6, r6, r9
+    uadd16  r10, r14, r1
+    usub16  r1, r14, r1
+    uadd16  r10, r10, r9
+    uadd16  r1, r1, r9
+    ldr     r11, [r2]               ; load input from dst
+    mov     r8, r7, asr #3
+    pkhtb   r9, r8, r10, asr #19
+    mov     r8, r1, asr #3
+    pkhtb   r8, r8, r6, asr #19
+    uxtb16  lr, r11, ror #8
+    qadd16  r9, r9, lr
+    uxtb16  lr, r11
+    qadd16  r8, r8, lr
+    usat16  r9, #8, r9
+    usat16  r8, #8, r8
+    orr     r9, r8, r9, lsl #8
+    ldr     r11, [r2, r12]          ; load input from dst
+    mov     r7, r7, lsl #16
+    mov     r1, r1, lsl #16
+    mov     r10, r10, lsl #16
+    mov     r6, r6, lsl #16
+    mov     r7, r7, asr #3
+    pkhtb   r7, r7, r10, asr #19
+    mov     r1, r1, asr #3
+    pkhtb   r1, r1, r6, asr #19
+    uxtb16  r8, r11, ror #8
+    qadd16  r7, r7, r8
+    uxtb16  r8, r11
+    qadd16  r1, r1, r8
+    usat16  r7, #8, r7
+    usat16  r1, #8, r1
+    orr     r1, r1, r7, lsl #8
+    str     r9, [r2], r12           ; store output to dst
+    str     r1, [r2], r12           ; store output to dst
+    bne     vp8_dequant_idct_loop2_v6
+
+; memset
+    sub     r0, r0, #32
+    add     sp, sp, #4
+
+    mov     r12, #0
+    str     r12, [r0]
+    str     r12, [r0, #4]
+    str     r12, [r0, #8]
+    str     r12, [r0, #12]
+    str     r12, [r0, #16]
+    str     r12, [r0, #20]
+    str     r12, [r0, #24]
+    str     r12, [r0, #28]
+
+    ldmia   sp!, {r4 - r11, pc}
+    ENDP    ; |vp8_dequant_idct_add_v6|
+
+; Constant Pool
+cospi8sqrt2minus1 DCD 0x00004E7B
+sinpi8sqrt2       DCD 0x00008A8C
+c0x00040004       DCD 0x00040004
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/dequantize_v6.asm b/media/libvpx/vp8/common/arm/armv6/dequantize_v6.asm
new file mode 100644
index 000000000..72f7e0ee5
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/dequantize_v6.asm
@@ -0,0 +1,69 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_dequantize_b_loop_v6|
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+;-------------------------------
+;void   vp8_dequantize_b_loop_v6(short *Q, short *DQC, short *DQ);
+; r0    short *Q,
+; r1    short *DQC
+; r2    short *DQ
+|vp8_dequantize_b_loop_v6| PROC
+    stmdb   sp!, {r4-r9, lr}
+
+    ldr     r3, [r0]                ;load Q
+    ldr     r4, [r1]                ;load DQC
+    ldr     r5, [r0, #4]
+    ldr     r6, [r1, #4]
+
+    mov     r12, #2                 ;loop counter
+
+dequant_loop
+    smulbb  r7, r3, r4              ;multiply
+    smultt  r8, r3, r4
+    smulbb  r9, r5, r6
+    smultt  lr, r5, r6
+
+    ldr     r3, [r0, #8]
+    ldr     r4, [r1, #8]
+    ldr     r5, [r0, #12]
+    ldr     r6, [r1, #12]
+
+    strh    r7, [r2], #2            ;store result
+    smulbb  r7, r3, r4              ;multiply
+    strh    r8, [r2], #2
+    smultt  r8, r3, r4
+    strh    r9, [r2], #2
+    smulbb  r9, r5, r6
+    strh    lr, [r2], #2
+    smultt  lr, r5, r6
+
+    subs    r12, r12, #1
+
+    add     r0, r0, #16
+    add     r1, r1, #16
+
+    ldrne       r3, [r0]
+    strh    r7, [r2], #2            ;store result
+    ldrne       r4, [r1]
+    strh    r8, [r2], #2
+    ldrne       r5, [r0, #4]
+    strh    r9, [r2], #2
+    ldrne       r6, [r1, #4]
+    strh    lr, [r2], #2
+
+    bne     dequant_loop
+
+    ldmia   sp!, {r4-r9, pc}
+    ENDP    ;|vp8_dequantize_b_loop_v6|
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/filter_v6.asm b/media/libvpx/vp8/common/arm/armv6/filter_v6.asm
new file mode 100644
index 000000000..eb4b75bd8
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/filter_v6.asm
@@ -0,0 +1,624 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_filter_block2d_first_pass_armv6|
+    EXPORT  |vp8_filter_block2d_first_pass_16x16_armv6|
+    EXPORT  |vp8_filter_block2d_first_pass_8x8_armv6|
+    EXPORT  |vp8_filter_block2d_second_pass_armv6|
+    EXPORT  |vp8_filter4_block2d_second_pass_armv6|
+    EXPORT  |vp8_filter_block2d_first_pass_only_armv6|
+    EXPORT  |vp8_filter_block2d_second_pass_only_armv6|
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+;-------------------------------------
+; r0    unsigned char *src_ptr
+; r1    short         *output_ptr
+; r2    unsigned int src_pixels_per_line
+; r3    unsigned int output_width
+; stack unsigned int output_height
+; stack const short *vp8_filter
+;-------------------------------------
+; vp8_filter the input and put in the output array.  Apply the 6 tap FIR filter with
+; the output being a 2 byte value and the intput being a 1 byte value.
+|vp8_filter_block2d_first_pass_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #40]                  ; vp8_filter address
+    ldr     r7, [sp, #36]                   ; output height
+
+    sub     r2, r2, r3                      ; inside loop increments input array,
+                                            ; so the height loop only needs to add
+                                            ; r2 - width to the input pointer
+
+    mov     r3, r3, lsl #1                  ; multiply width by 2 because using shorts
+    add     r12, r3, #16                    ; square off the output
+    sub     sp, sp, #4
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+    str     r1, [sp]                        ; push destination to stack
+    mov     r7, r7, lsl #16                 ; height is top part of counter
+
+; six tap filter
+|height_loop_1st_6|
+    ldrb    r8, [r0, #-2]                   ; load source data
+    ldrb    r9, [r0, #-1]
+    ldrb    r10, [r0], #2
+    orr     r7, r7, r3, lsr #2              ; construct loop counter
+
+|width_loop_1st_6|
+    ldrb    r11, [r0, #-1]
+
+    pkhbt   lr, r8, r9, lsl #16             ; r9 | r8
+    pkhbt   r8, r9, r10, lsl #16            ; r10 | r9
+
+    ldrb    r9, [r0]
+
+    smuad   lr, lr, r4                      ; apply the filter
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+    smuad   r8, r8, r4
+    pkhbt   r11, r11, r9, lsl #16           ; r9 | r11
+
+    smlad   lr, r10, r5, lr
+    ldrb    r10, [r0, #1]
+    smlad   r8, r11, r5, r8
+    ldrb    r11, [r0, #2]
+
+    sub     r7, r7, #1
+
+    pkhbt   r9, r9, r10, lsl #16            ; r10 | r9
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+
+    smlad   lr, r9, r6, lr
+    smlad   r11, r10, r6, r8
+
+    ands    r10, r7, #0xff                  ; test loop counter
+
+    add     lr, lr, #0x40                   ; round_shift_and_clamp
+    ldrneb  r8, [r0, #-2]                   ; load data for next loop
+    usat    lr, #8, lr, asr #7
+    add     r11, r11, #0x40
+    ldrneb  r9, [r0, #-1]
+    usat    r11, #8, r11, asr #7
+
+    strh    lr, [r1], r12                   ; result is transposed and stored, which
+                                            ; will make second pass filtering easier.
+    ldrneb  r10, [r0], #2
+    strh    r11, [r1], r12
+
+    bne     width_loop_1st_6
+
+    ldr     r1, [sp]                        ; load and update dst address
+    subs    r7, r7, #0x10000
+    add     r0, r0, r2                      ; move to next input line
+
+    add     r1, r1, #2                      ; move over to next column
+    str     r1, [sp]
+
+    bne     height_loop_1st_6
+
+    add     sp, sp, #4
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP
+
+; --------------------------
+; 16x16 version
+; -----------------------------
+|vp8_filter_block2d_first_pass_16x16_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #40]                  ; vp8_filter address
+    ldr     r7, [sp, #36]                   ; output height
+
+    add     r4, r2, #18                     ; preload next low
+    pld     [r0, r4]
+
+    sub     r2, r2, r3                      ; inside loop increments input array,
+                                            ; so the height loop only needs to add
+                                            ; r2 - width to the input pointer
+
+    mov     r3, r3, lsl #1                  ; multiply width by 2 because using shorts
+    add     r12, r3, #16                    ; square off the output
+    sub     sp, sp, #4
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+    str     r1, [sp]                        ; push destination to stack
+    mov     r7, r7, lsl #16                 ; height is top part of counter
+
+; six tap filter
+|height_loop_1st_16_6|
+    ldrb    r8, [r0, #-2]                   ; load source data
+    ldrb    r9, [r0, #-1]
+    ldrb    r10, [r0], #2
+    orr     r7, r7, r3, lsr #2              ; construct loop counter
+
+|width_loop_1st_16_6|
+    ldrb    r11, [r0, #-1]
+
+    pkhbt   lr, r8, r9, lsl #16             ; r9 | r8
+    pkhbt   r8, r9, r10, lsl #16            ; r10 | r9
+
+    ldrb    r9, [r0]
+
+    smuad   lr, lr, r4                      ; apply the filter
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+    smuad   r8, r8, r4
+    pkhbt   r11, r11, r9, lsl #16           ; r9 | r11
+
+    smlad   lr, r10, r5, lr
+    ldrb    r10, [r0, #1]
+    smlad   r8, r11, r5, r8
+    ldrb    r11, [r0, #2]
+
+    sub     r7, r7, #1
+
+    pkhbt   r9, r9, r10, lsl #16            ; r10 | r9
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+
+    smlad   lr, r9, r6, lr
+    smlad   r11, r10, r6, r8
+
+    ands    r10, r7, #0xff                  ; test loop counter
+
+    add     lr, lr, #0x40                   ; round_shift_and_clamp
+    ldrneb  r8, [r0, #-2]                   ; load data for next loop
+    usat    lr, #8, lr, asr #7
+    add     r11, r11, #0x40
+    ldrneb  r9, [r0, #-1]
+    usat    r11, #8, r11, asr #7
+
+    strh    lr, [r1], r12                   ; result is transposed and stored, which
+                                            ; will make second pass filtering easier.
+    ldrneb  r10, [r0], #2
+    strh    r11, [r1], r12
+
+    bne     width_loop_1st_16_6
+
+    ldr     r1, [sp]                        ; load and update dst address
+    subs    r7, r7, #0x10000
+    add     r0, r0, r2                      ; move to next input line
+
+    add     r11, r2, #34                    ; adding back block width(=16)
+    pld     [r0, r11]                       ; preload next low
+
+    add     r1, r1, #2                      ; move over to next column
+    str     r1, [sp]
+
+    bne     height_loop_1st_16_6
+
+    add     sp, sp, #4
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP
+
+; --------------------------
+; 8x8 version
+; -----------------------------
+|vp8_filter_block2d_first_pass_8x8_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #40]                  ; vp8_filter address
+    ldr     r7, [sp, #36]                   ; output height
+
+    add     r4, r2, #10                     ; preload next low
+    pld     [r0, r4]
+
+    sub     r2, r2, r3                      ; inside loop increments input array,
+                                            ; so the height loop only needs to add
+                                            ; r2 - width to the input pointer
+
+    mov     r3, r3, lsl #1                  ; multiply width by 2 because using shorts
+    add     r12, r3, #16                    ; square off the output
+    sub     sp, sp, #4
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+    str     r1, [sp]                        ; push destination to stack
+    mov     r7, r7, lsl #16                 ; height is top part of counter
+
+; six tap filter
+|height_loop_1st_8_6|
+    ldrb    r8, [r0, #-2]                   ; load source data
+    ldrb    r9, [r0, #-1]
+    ldrb    r10, [r0], #2
+    orr     r7, r7, r3, lsr #2              ; construct loop counter
+
+|width_loop_1st_8_6|
+    ldrb    r11, [r0, #-1]
+
+    pkhbt   lr, r8, r9, lsl #16             ; r9 | r8
+    pkhbt   r8, r9, r10, lsl #16            ; r10 | r9
+
+    ldrb    r9, [r0]
+
+    smuad   lr, lr, r4                      ; apply the filter
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+    smuad   r8, r8, r4
+    pkhbt   r11, r11, r9, lsl #16           ; r9 | r11
+
+    smlad   lr, r10, r5, lr
+    ldrb    r10, [r0, #1]
+    smlad   r8, r11, r5, r8
+    ldrb    r11, [r0, #2]
+
+    sub     r7, r7, #1
+
+    pkhbt   r9, r9, r10, lsl #16            ; r10 | r9
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+
+    smlad   lr, r9, r6, lr
+    smlad   r11, r10, r6, r8
+
+    ands    r10, r7, #0xff                  ; test loop counter
+
+    add     lr, lr, #0x40                   ; round_shift_and_clamp
+    ldrneb  r8, [r0, #-2]                   ; load data for next loop
+    usat    lr, #8, lr, asr #7
+    add     r11, r11, #0x40
+    ldrneb  r9, [r0, #-1]
+    usat    r11, #8, r11, asr #7
+
+    strh    lr, [r1], r12                   ; result is transposed and stored, which
+                                            ; will make second pass filtering easier.
+    ldrneb  r10, [r0], #2
+    strh    r11, [r1], r12
+
+    bne     width_loop_1st_8_6
+
+    ldr     r1, [sp]                        ; load and update dst address
+    subs    r7, r7, #0x10000
+    add     r0, r0, r2                      ; move to next input line
+
+    add     r11, r2, #18                    ; adding back block width(=8)
+    pld     [r0, r11]                       ; preload next low
+
+    add     r1, r1, #2                      ; move over to next column
+    str     r1, [sp]
+
+    bne     height_loop_1st_8_6
+
+    add     sp, sp, #4
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP
+
+;---------------------------------
+; r0    short         *src_ptr,
+; r1    unsigned char *output_ptr,
+; r2    unsigned int output_pitch,
+; r3    unsigned int cnt,
+; stack const short *vp8_filter
+;---------------------------------
+|vp8_filter_block2d_second_pass_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #36]                  ; vp8_filter address
+    sub     sp, sp, #4
+    mov     r7, r3, lsl #16                 ; height is top part of counter
+    str     r1, [sp]                        ; push destination to stack
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+    pkhbt   r12, r5, r4                     ; pack the filter differently
+    pkhbt   r11, r6, r5
+
+    sub     r0, r0, #4                      ; offset input buffer
+
+|height_loop_2nd|
+    ldr     r8, [r0]                        ; load the data
+    ldr     r9, [r0, #4]
+    orr     r7, r7, r3, lsr #1              ; loop counter
+
+|width_loop_2nd|
+    smuad   lr, r4, r8                      ; apply filter
+    sub     r7, r7, #1
+    smulbt  r8, r4, r8
+
+    ldr     r10, [r0, #8]
+
+    smlad   lr, r5, r9, lr
+    smladx  r8, r12, r9, r8
+
+    ldrh    r9, [r0, #12]
+
+    smlad   lr, r6, r10, lr
+    smladx  r8, r11, r10, r8
+
+    add     r0, r0, #4
+    smlatb  r10, r6, r9, r8
+
+    add     lr, lr, #0x40                   ; round_shift_and_clamp
+    ands    r8, r7, #0xff
+    usat    lr, #8, lr, asr #7
+    add     r10, r10, #0x40
+    strb    lr, [r1], r2                    ; the result is transposed back and stored
+    usat    r10, #8, r10, asr #7
+
+    ldrne   r8, [r0]                        ; load data for next loop
+    ldrne   r9, [r0, #4]
+    strb    r10, [r1], r2
+
+    bne     width_loop_2nd
+
+    ldr     r1, [sp]                        ; update dst for next loop
+    subs    r7, r7, #0x10000
+    add     r0, r0, #16                     ; updata src for next loop
+    add     r1, r1, #1
+    str     r1, [sp]
+
+    bne     height_loop_2nd
+
+    add     sp, sp, #4
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP
+
+;---------------------------------
+; r0    short         *src_ptr,
+; r1    unsigned char *output_ptr,
+; r2    unsigned int output_pitch,
+; r3    unsigned int cnt,
+; stack const short *vp8_filter
+;---------------------------------
+|vp8_filter4_block2d_second_pass_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #36]                  ; vp8_filter address
+    mov     r7, r3, lsl #16                 ; height is top part of counter
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    add     lr, r1, r3                      ; save final destination pointer
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+    pkhbt   r12, r5, r4                     ; pack the filter differently
+    pkhbt   r11, r6, r5
+    mov     r4, #0x40                       ; rounding factor (for smlad{x})
+
+|height_loop_2nd_4|
+    ldrd    r8, r9, [r0, #-4]               ; load the data
+    orr     r7, r7, r3, lsr #1              ; loop counter
+
+|width_loop_2nd_4|
+    ldr     r10, [r0, #4]!
+    smladx  r6, r9, r12, r4                 ; apply filter
+    pkhbt   r8, r9, r8
+    smlad   r5, r8, r12, r4
+    pkhbt   r8, r10, r9
+    smladx  r6, r10, r11, r6
+    sub     r7, r7, #1
+    smlad   r5, r8, r11, r5
+
+    mov     r8, r9                          ; shift the data for the next loop
+    mov     r9, r10
+
+    usat    r6, #8, r6, asr #7              ; shift and clamp
+    usat    r5, #8, r5, asr #7
+
+    strb    r5, [r1], r2                    ; the result is transposed back and stored
+    tst     r7, #0xff
+    strb    r6, [r1], r2
+
+    bne     width_loop_2nd_4
+
+    subs    r7, r7, #0x10000
+    add     r0, r0, #16                     ; update src for next loop
+    sub     r1, lr, r7, lsr #16             ; update dst for next loop
+
+    bne     height_loop_2nd_4
+
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP
+
+;------------------------------------
+; r0    unsigned char *src_ptr
+; r1    unsigned char *output_ptr,
+; r2    unsigned int src_pixels_per_line
+; r3    unsigned int cnt,
+; stack unsigned int output_pitch,
+; stack const short *vp8_filter
+;------------------------------------
+|vp8_filter_block2d_first_pass_only_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    add     r7, r2, r3                      ; preload next low
+    add     r7, r7, #2
+    pld     [r0, r7]
+
+    ldr     r4, [sp, #36]                   ; output pitch
+    ldr     r11, [sp, #40]                  ; HFilter address
+    sub     sp, sp, #8
+
+    mov     r7, r3
+    sub     r2, r2, r3                      ; inside loop increments input array,
+                                            ; so the height loop only needs to add
+                                            ; r2 - width to the input pointer
+
+    sub     r4, r4, r3
+    str     r4, [sp]                        ; save modified output pitch
+    str     r2, [sp, #4]
+
+    mov     r2, #0x40
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+; six tap filter
+|height_loop_1st_only_6|
+    ldrb    r8, [r0, #-2]                   ; load data
+    ldrb    r9, [r0, #-1]
+    ldrb    r10, [r0], #2
+
+    mov     r12, r3, lsr #1                 ; loop counter
+
+|width_loop_1st_only_6|
+    ldrb    r11, [r0, #-1]
+
+    pkhbt   lr, r8, r9, lsl #16             ; r9 | r8
+    pkhbt   r8, r9, r10, lsl #16            ; r10 | r9
+
+    ldrb    r9, [r0]
+
+;;  smuad   lr, lr, r4
+    smlad   lr, lr, r4, r2
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+;;  smuad   r8, r8, r4
+    smlad   r8, r8, r4, r2
+    pkhbt   r11, r11, r9, lsl #16           ; r9 | r11
+
+    smlad   lr, r10, r5, lr
+    ldrb    r10, [r0, #1]
+    smlad   r8, r11, r5, r8
+    ldrb    r11, [r0, #2]
+
+    subs    r12, r12, #1
+
+    pkhbt   r9, r9, r10, lsl #16            ; r10 | r9
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+
+    smlad   lr, r9, r6, lr
+    smlad   r10, r10, r6, r8
+
+;;  add     lr, lr, #0x40                   ; round_shift_and_clamp
+    ldrneb  r8, [r0, #-2]                   ; load data for next loop
+    usat    lr, #8, lr, asr #7
+;;  add     r10, r10, #0x40
+    strb    lr, [r1], #1                    ; store the result
+    usat    r10, #8, r10, asr #7
+
+    ldrneb  r9, [r0, #-1]
+    strb    r10, [r1], #1
+    ldrneb  r10, [r0], #2
+
+    bne     width_loop_1st_only_6
+
+    ldr     lr, [sp]                        ; load back output pitch
+    ldr     r12, [sp, #4]                   ; load back output pitch
+    subs    r7, r7, #1
+    add     r0, r0, r12                     ; updata src for next loop
+
+    add     r11, r12, r3                    ; preload next low
+    add     r11, r11, #2
+    pld     [r0, r11]
+
+    add     r1, r1, lr                      ; update dst for next loop
+
+    bne     height_loop_1st_only_6
+
+    add     sp, sp, #8
+    ldmia   sp!, {r4 - r11, pc}
+    ENDP  ; |vp8_filter_block2d_first_pass_only_armv6|
+
+
+;------------------------------------
+; r0    unsigned char *src_ptr,
+; r1    unsigned char *output_ptr,
+; r2    unsigned int src_pixels_per_line
+; r3    unsigned int cnt,
+; stack unsigned int output_pitch,
+; stack const short *vp8_filter
+;------------------------------------
+|vp8_filter_block2d_second_pass_only_armv6| PROC
+    stmdb   sp!, {r4 - r11, lr}
+
+    ldr     r11, [sp, #40]                  ; VFilter address
+    ldr     r12, [sp, #36]                  ; output pitch
+
+    mov     r7, r3, lsl #16                 ; height is top part of counter
+    sub     r0, r0, r2, lsl #1              ; need 6 elements for filtering, 2 before, 3 after
+
+    sub     sp, sp, #8
+
+    ldr     r4, [r11]                       ; load up packed filter coefficients
+    ldr     r5, [r11, #4]
+    ldr     r6, [r11, #8]
+
+    str     r0, [sp]                        ; save r0 to stack
+    str     r1, [sp, #4]                    ; save dst to stack
+
+; six tap filter
+|width_loop_2nd_only_6|
+    ldrb    r8, [r0], r2                    ; load data
+    orr     r7, r7, r3                      ; loop counter
+    ldrb    r9, [r0], r2
+    ldrb    r10, [r0], r2
+
+|height_loop_2nd_only_6|
+    ; filter first column in this inner loop, than, move to next colum.
+    ldrb    r11, [r0], r2
+
+    pkhbt   lr, r8, r9, lsl #16             ; r9 | r8
+    pkhbt   r8, r9, r10, lsl #16            ; r10 | r9
+
+    ldrb    r9, [r0], r2
+
+    smuad   lr, lr, r4
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+    smuad   r8, r8, r4
+    pkhbt   r11, r11, r9, lsl #16           ; r9 | r11
+
+    smlad   lr, r10, r5, lr
+    ldrb    r10, [r0], r2
+    smlad   r8, r11, r5, r8
+    ldrb    r11, [r0]
+
+    sub     r7, r7, #2
+    sub     r0, r0, r2, lsl #2
+
+    pkhbt   r9, r9, r10, lsl #16            ; r10 | r9
+    pkhbt   r10, r10, r11, lsl #16          ; r11 | r10
+
+    smlad   lr, r9, r6, lr
+    smlad   r10, r10, r6, r8
+
+    ands    r9, r7, #0xff
+
+    add     lr, lr, #0x40                   ; round_shift_and_clamp
+    ldrneb  r8, [r0], r2                    ; load data for next loop
+    usat    lr, #8, lr, asr #7
+    add     r10, r10, #0x40
+    strb    lr, [r1], r12                   ; store the result for the column
+    usat    r10, #8, r10, asr #7
+
+    ldrneb  r9, [r0], r2
+    strb    r10, [r1], r12
+    ldrneb  r10, [r0], r2
+
+    bne     height_loop_2nd_only_6
+
+    ldr     r0, [sp]
+    ldr     r1, [sp, #4]
+    subs    r7, r7, #0x10000
+    add     r0, r0, #1                      ; move to filter next column
+    str     r0, [sp]
+    add     r1, r1, #1
+    str     r1, [sp, #4]
+
+    bne     width_loop_2nd_only_6
+
+    add     sp, sp, #8
+
+    ldmia   sp!, {r4 - r11, pc}
+    ENDP  ; |vp8_filter_block2d_second_pass_only_armv6|
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/idct_blk_v6.c b/media/libvpx/vp8/common/arm/armv6/idct_blk_v6.c
new file mode 100644
index 000000000..c94f84a62
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/idct_blk_v6.c
@@ -0,0 +1,115 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+
+
+void vp8_dequant_idct_add_y_block_v6(short *q, short *dq,
+                                     unsigned char *dst,
+                                     int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_v6 (q, dq, dst, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[0]*dq[0], dst, stride, dst, stride);
+            ((int *)q)[0] = 0;
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_v6 (q+16, dq, dst+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[16]*dq[0], dst+4, stride, dst+4, stride);
+            ((int *)(q+16))[0] = 0;
+        }
+
+        if (eobs[2] > 1)
+            vp8_dequant_idct_add_v6 (q+32, dq, dst+8, stride);
+        else if (eobs[2] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[32]*dq[0], dst+8, stride, dst+8, stride);
+            ((int *)(q+32))[0] = 0;
+        }
+
+        if (eobs[3] > 1)
+            vp8_dequant_idct_add_v6 (q+48, dq, dst+12, stride);
+        else if (eobs[3] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[48]*dq[0], dst+12, stride,dst+12,stride);
+            ((int *)(q+48))[0] = 0;
+        }
+
+        q    += 64;
+        dst  += 4*stride;
+        eobs += 4;
+    }
+}
+
+void vp8_dequant_idct_add_uv_block_v6(short *q, short *dq,
+                                      unsigned char *dstu,
+                                      unsigned char *dstv,
+                                      int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 2; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_v6 (q, dq, dstu, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[0]*dq[0], dstu, stride, dstu, stride);
+            ((int *)q)[0] = 0;
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_v6 (q+16, dq, dstu+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[16]*dq[0], dstu+4, stride,
+                                                  dstu+4, stride);
+            ((int *)(q+16))[0] = 0;
+        }
+
+        q    += 32;
+        dstu += 4*stride;
+        eobs += 2;
+    }
+
+    for (i = 0; i < 2; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_v6 (q, dq, dstv, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[0]*dq[0], dstv, stride, dstv, stride);
+            ((int *)q)[0] = 0;
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_v6 (q+16, dq, dstv+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_v6 (q[16]*dq[0], dstv+4, stride,
+                                                  dstv+4, stride);
+            ((int *)(q+16))[0] = 0;
+        }
+
+        q    += 32;
+        dstv += 4*stride;
+        eobs += 2;
+    }
+}
diff --git a/media/libvpx/vp8/common/arm/armv6/idct_v6.asm b/media/libvpx/vp8/common/arm/armv6/idct_v6.asm
new file mode 100644
index 000000000..b4d44cbeb
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/idct_v6.asm
@@ -0,0 +1,202 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_short_idct4x4llm_v6_dual|
+
+    AREA    |.text|, CODE, READONLY
+
+
+; void vp8_short_idct4x4llm_c(short *input, unsigned char *pred, int pitch,
+;                             unsigned char *dst, int stride)
+; r0    short* input
+; r1    unsigned char* pred
+; r2    int pitch
+; r3    unsigned char* dst
+; sp    int stride
+
+|vp8_short_idct4x4llm_v6_dual| PROC
+    stmdb   sp!, {r4-r11, lr}
+
+    sub     sp, sp, #4
+
+    mov     r4, #0x00008A00         ; sin
+    orr     r4, r4, #0x0000008C     ; sinpi8sqrt2
+
+    mov     r5, #0x00004E00         ; cos
+    orr     r5, r5, #0x0000007B     ; cospi8sqrt2minus1
+    orr     r5, r5, #1<<31          ; loop counter on top bit
+
+loop1_dual
+    ldr     r6, [r0, #(4*2)]        ; i5 | i4
+    ldr     r12, [r0, #(12*2)]      ; i13|i12
+    ldr     r14, [r0, #(8*2)]       ; i9 | i8
+
+    smulbt  r9, r5, r6              ; (ip[5] * cospi8sqrt2minus1) >> 16
+    smulbb  r7, r5, r6              ; (ip[4] * cospi8sqrt2minus1) >> 16
+    smulwt  r10, r4, r6             ; (ip[5] * sinpi8sqrt2) >> 16
+    smulwb  r8, r4, r6              ; (ip[4] * sinpi8sqrt2) >> 16
+
+    smulbt  r11, r5, r12            ; (ip[13] * cospi8sqrt2minus1) >> 16
+    pkhtb   r7, r9, r7, asr #16     ; 5c | 4c
+    pkhbt   r8, r8, r10, lsl #16    ; 5s | 4s
+    uadd16  r6, r6, r7              ; 5c+5 | 4c+4
+
+    smulwt  r7, r4, r12             ; (ip[13] * sinpi8sqrt2) >> 16
+    smulbb  r9, r5, r12             ; (ip[12] * cospi8sqrt2minus1) >> 16
+    smulwb  r10, r4, r12            ; (ip[12] * sinpi8sqrt2) >> 16
+
+    subs    r5, r5, #1<<31          ; i--
+
+    pkhtb   r9, r11, r9, asr #16    ; 13c | 12c
+    ldr     r11, [r0]               ; i1 | i0
+    pkhbt   r10, r10, r7, lsl #16   ; 13s | 12s
+    uadd16  r7, r12, r9             ; 13c+13 | 12c+12
+
+    usub16  r7, r8, r7              ; c
+    uadd16  r6, r6, r10             ; d
+    uadd16  r10, r11, r14           ; a
+    usub16  r8, r11, r14            ; b
+
+    uadd16  r9, r10, r6             ; a+d
+    usub16  r10, r10, r6            ; a-d
+    uadd16  r6, r8, r7              ; b+c
+    usub16  r7, r8, r7              ; b-c
+
+    ; use input buffer to store intermediate results
+    str      r6, [r0, #(4*2)]       ; o5 | o4
+    str      r7, [r0, #(8*2)]       ; o9 | o8
+    str      r10,[r0, #(12*2)]      ; o13|o12
+    str      r9, [r0], #4           ; o1 | o0
+
+    bcs loop1_dual
+
+    sub     r0, r0, #8              ; reset input/output
+    str     r0, [sp]
+
+loop2_dual
+
+    ldr     r6, [r0, #(4*2)]        ; i5 | i4
+    ldr     r12,[r0, #(2*2)]        ; i3 | i2
+    ldr     r14,[r0, #(6*2)]        ; i7 | i6
+    ldr     r0, [r0, #(0*2)]        ; i1 | i0
+
+    smulbt  r9, r5, r6              ; (ip[5] * cospi8sqrt2minus1) >> 16
+    smulbt  r7, r5, r0              ; (ip[1] * cospi8sqrt2minus1) >> 16
+    smulwt  r10, r4, r6             ; (ip[5] * sinpi8sqrt2) >> 16
+    smulwt  r8, r4, r0              ; (ip[1] * sinpi8sqrt2) >> 16
+
+    pkhbt   r11, r6, r0, lsl #16    ; i0 | i4
+    pkhtb   r7, r7, r9, asr #16     ; 1c | 5c
+    pkhtb   r0, r0, r6, asr #16     ; i1 | i5
+    pkhbt   r8, r10, r8, lsl #16    ; 1s | 5s = temp1
+
+    uadd16  r0, r7, r0              ; 1c+1 | 5c+5 = temp2
+    pkhbt   r9, r14, r12, lsl #16   ; i2 | i6
+    uadd16  r10, r11, r9            ; a
+    usub16  r9, r11, r9             ; b
+    pkhtb   r6, r12, r14, asr #16   ; i3 | i7
+
+    subs    r5, r5, #1<<31          ; i--
+
+    smulbt  r7, r5, r6              ; (ip[3] * cospi8sqrt2minus1) >> 16
+    smulwt  r11, r4, r6             ; (ip[3] * sinpi8sqrt2) >> 16
+    smulbb  r12, r5, r6             ; (ip[7] * cospi8sqrt2minus1) >> 16
+    smulwb  r14, r4, r6             ; (ip[7] * sinpi8sqrt2) >> 16
+
+    pkhtb   r7, r7, r12, asr #16    ; 3c | 7c
+    pkhbt   r11, r14, r11, lsl #16  ; 3s | 7s = temp1
+
+    uadd16  r6, r7, r6              ; 3c+3 | 7c+7 = temp2
+    usub16  r12, r8, r6             ; c (o1 | o5)
+    uadd16  r6, r11, r0             ; d (o3 | o7)
+    uadd16  r7, r10, r6             ; a+d
+
+    mov     r8, #4                  ; set up 4's
+    orr     r8, r8, #0x40000        ; 4|4
+
+    usub16  r6, r10, r6             ; a-d
+    uadd16  r6, r6, r8              ; a-d+4, 3|7
+    uadd16  r7, r7, r8              ; a+d+4, 0|4
+    uadd16  r10, r9, r12            ; b+c
+    usub16  r0, r9, r12             ; b-c
+    uadd16  r10, r10, r8            ; b+c+4, 1|5
+    uadd16  r8, r0, r8              ; b-c+4, 2|6
+
+    ldr     lr, [sp, #40]           ; dst stride
+
+    ldrb    r0, [r1]                ; pred p0
+    ldrb    r11, [r1, #1]           ; pred p1
+    ldrb    r12, [r1, #2]           ; pred p2
+
+    add     r0, r0, r7, asr #19     ; p0 + o0
+    add     r11, r11, r10, asr #19  ; p1 + o1
+    add     r12, r12, r8, asr #19   ; p2 + o2
+
+    usat    r0, #8, r0              ; d0 = clip8(p0 + o0)
+    usat    r11, #8, r11            ; d1 = clip8(p1 + o1)
+    usat    r12, #8, r12            ; d2 = clip8(p2 + o2)
+
+    add     r0, r0, r11, lsl #8     ; |--|--|d1|d0|
+
+    ldrb    r11, [r1, #3]           ; pred p3
+
+    add     r0, r0, r12, lsl #16    ; |--|d2|d1|d0|
+
+    add     r11, r11, r6, asr #19   ; p3 + o3
+
+    sxth    r7, r7                  ;
+    sxth    r10, r10                ;
+
+    usat    r11, #8, r11            ; d3 = clip8(p3 + o3)
+
+    sxth    r8, r8                  ;
+    sxth    r6, r6                  ;
+
+    add     r0, r0, r11, lsl #24    ; |d3|d2|d1|d0|
+
+    ldrb    r12, [r1, r2]!          ; pred p4
+    str     r0, [r3], lr
+    ldrb    r11, [r1, #1]           ; pred p5
+
+    add     r12, r12, r7, asr #3    ; p4 + o4
+    add     r11, r11, r10, asr #3   ; p5 + o5
+
+    usat    r12, #8, r12            ; d4 = clip8(p4 + o4)
+    usat    r11, #8, r11            ; d5 = clip8(p5 + o5)
+
+    ldrb    r7, [r1, #2]            ; pred p6
+    ldrb    r10, [r1, #3]           ; pred p6
+
+    add     r12, r12, r11, lsl #8   ; |--|--|d5|d4|
+
+    add     r7, r7, r8, asr #3      ; p6 + o6
+    add     r10, r10, r6, asr #3    ; p7 + o7
+
+    ldr     r0, [sp]                ; load input pointer
+
+    usat    r7, #8, r7              ; d6 = clip8(p6 + o6)
+    usat    r10, #8, r10            ; d7 = clip8(p7 + o7)
+
+    add     r12, r12, r7, lsl #16   ; |--|d6|d5|d4|
+    add     r12, r12, r10, lsl #24  ; |d7|d6|d5|d4|
+
+    str     r12, [r3], lr
+    add     r0, r0, #16
+    add     r1, r1, r2              ; pred + pitch
+
+    bcs loop2_dual
+
+    add     sp, sp, #4              ; idct_output buffer
+    ldmia   sp!, {r4 - r11, pc}
+
+    ENDP
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/intra4x4_predict_v6.asm b/media/libvpx/vp8/common/arm/armv6/intra4x4_predict_v6.asm
new file mode 100644
index 000000000..c5ec824b3
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/intra4x4_predict_v6.asm
@@ -0,0 +1,611 @@
+;
+;  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_intra4x4_predict_armv6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+
+;void vp8_intra4x4_predict_armv6(unsigned char *Above, unsigned char *yleft,
+;                                B_PREDICTION_MODE left_stride, int b_mode,
+;                                unsigned char *dst, int dst_stride,
+;                                unsigned char top_left)
+
+; r0: *Above
+; r1: *yleft
+; r2: left_stride
+; r3: b_mode
+; sp + #40: dst
+; sp + #44: dst_stride
+; sp + #48: top_left
+|vp8_intra4x4_predict_armv6| PROC
+    push        {r4-r12, lr}
+
+    cmp         r3, #10
+    addlt       pc, pc, r3, lsl #2       ; position independent switch
+    pop         {r4-r12, pc}             ; default
+    b           b_dc_pred
+    b           b_tm_pred
+    b           b_ve_pred
+    b           b_he_pred
+    b           b_ld_pred
+    b           b_rd_pred
+    b           b_vr_pred
+    b           b_vl_pred
+    b           b_hd_pred
+    b           b_hu_pred
+
+b_dc_pred
+    ; load values
+    ldr         r8, [r0]                 ; Above
+    ldrb        r4, [r1], r2             ; Left[0]
+    mov         r9, #0
+    ldrb        r5, [r1], r2             ; Left[1]
+    ldrb        r6, [r1], r2             ; Left[2]
+    usad8       r12, r8, r9
+    ldrb        r7, [r1]                 ; Left[3]
+
+    ; calculate dc
+    add         r4, r4, r5
+    add         r4, r4, r6
+    add         r4, r4, r7
+    add         r4, r4, r12
+    add         r4, r4, #4
+    ldr         r0, [sp, #44]           ; dst_stride
+    mov         r12, r4, asr #3         ; (expected_dc + 4) >> 3
+
+    add         r12, r12, r12, lsl #8
+    ldr         r3, [sp, #40]           ; dst
+    add         r12, r12, r12, lsl #16
+
+    ; store values
+    str         r12, [r3], r0
+    str         r12, [r3], r0
+    str         r12, [r3], r0
+    str         r12, [r3]
+
+    pop        {r4-r12, pc}
+
+b_tm_pred
+    ldr         r8, [r0]                ; Above
+    ldrb        r9, [sp, #48]           ; top_left
+    ldrb        r4, [r1], r2            ; Left[0]
+    ldrb        r5, [r1], r2            ; Left[1]
+    ldrb        r6, [r1], r2            ; Left[2]
+    ldrb        r7, [r1]                ; Left[3]
+    ldr         r0, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    add         r9, r9, r9, lsl #16     ; [tl|tl]
+    uxtb16      r10, r8                 ; a[2|0]
+    uxtb16      r11, r8, ror #8         ; a[3|1]
+    ssub16      r10, r10, r9            ; a[2|0] - [tl|tl]
+    ssub16      r11, r11, r9            ; a[3|1] - [tl|tl]
+
+    add         r4, r4, r4, lsl #16     ; l[0|0]
+    add         r5, r5, r5, lsl #16     ; l[1|1]
+    add         r6, r6, r6, lsl #16     ; l[2|2]
+    add         r7, r7, r7, lsl #16     ; l[3|3]
+
+    sadd16      r1, r4, r10             ; l[0|0] + a[2|0] - [tl|tl]
+    sadd16      r2, r4, r11             ; l[0|0] + a[3|1] - [tl|tl]
+    usat16      r1, #8, r1
+    usat16      r2, #8, r2
+
+    sadd16      r4, r5, r10             ; l[1|1] + a[2|0] - [tl|tl]
+    sadd16      r5, r5, r11             ; l[1|1] + a[3|1] - [tl|tl]
+
+    add         r12, r1, r2, lsl #8     ; [3|2|1|0]
+    str         r12, [r3], r0
+
+    usat16      r4, #8, r4
+    usat16      r5, #8, r5
+
+    sadd16      r1, r6, r10             ; l[2|2] + a[2|0] - [tl|tl]
+    sadd16      r2, r6, r11             ; l[2|2] + a[3|1] - [tl|tl]
+
+    add         r12, r4, r5, lsl #8     ; [3|2|1|0]
+    str         r12, [r3], r0
+
+    usat16      r1, #8, r1
+    usat16      r2, #8, r2
+
+    sadd16      r4, r7, r10             ; l[3|3] + a[2|0] - [tl|tl]
+    sadd16      r5, r7, r11             ; l[3|3] + a[3|1] - [tl|tl]
+
+    add         r12, r1, r2, lsl #8     ; [3|2|1|0]
+
+    usat16      r4, #8, r4
+    usat16      r5, #8, r5
+
+    str         r12, [r3], r0
+
+    add         r12, r4, r5, lsl #8     ; [3|2|1|0]
+    str         r12, [r3]
+
+    pop        {r4-r12, pc}
+
+b_ve_pred
+    ldr         r8, [r0]                ; a[3|2|1|0]
+    ldr         r11, c00FF00FF
+    ldrb        r9, [sp, #48]           ; top_left
+    ldrb        r10, [r0, #4]           ; a[4]
+
+    ldr         r0, c00020002
+
+    uxtb16      r4, r8                  ; a[2|0]
+    uxtb16      r5, r8, ror #8          ; a[3|1]
+    ldr         r2, [sp, #44]           ; dst_stride
+    pkhbt       r9, r9, r5, lsl #16     ; a[1|-1]
+
+    add         r9, r9, r4, lsl #1      ;[a[1]+2*a[2]       | tl+2*a[0]       ]
+    uxtab16     r9, r9, r5              ;[a[1]+2*a[2]+a[3]  | tl+2*a[0]+a[1]  ]
+    ldr         r3, [sp, #40]           ; dst
+    uxtab16     r9, r9, r0              ;[a[1]+2*a[2]+a[3]+2| tl+2*a[0]+a[1]+2]
+
+    add         r0, r0, r10, lsl #16    ;[a[4]+2            |                 2]
+    add         r0, r0, r4, asr #16     ;[a[4]+2            |            a[2]+2]
+    add         r0, r0, r5, lsl #1      ;[a[4]+2*a[3]+2     |     a[2]+2*a[1]+2]
+    uadd16      r4, r4, r0              ;[a[4]+2*a[3]+a[2]+2|a[2]+2*a[1]+a[0]+2]
+
+    and         r9, r11, r9, asr #2
+    and         r4, r11, r4, asr #2
+    add         r9, r9, r4, lsl #8
+
+    ; store values
+    str         r9, [r3], r2
+    str         r9, [r3], r2
+    str         r9, [r3], r2
+    str         r9, [r3]
+
+    pop        {r4-r12, pc}
+
+
+b_he_pred
+    ldrb        r4, [r1], r2            ; Left[0]
+    ldrb        r8, [sp, #48]           ; top_left
+    ldrb        r5, [r1], r2            ; Left[1]
+    ldrb        r6, [r1], r2            ; Left[2]
+    ldrb        r7, [r1]                ; Left[3]
+
+    add         r8, r8, r4              ; tl   + l[0]
+    add         r9, r4, r5              ; l[0] + l[1]
+    add         r10, r5, r6             ; l[1] + l[2]
+    add         r11, r6, r7             ; l[2] + l[3]
+
+    mov         r0, #2<<14
+
+    add         r8, r8, r9              ; tl + 2*l[0] + l[1]
+    add         r4, r9, r10             ; l[0] + 2*l[1] + l[2]
+    add         r5, r10, r11            ; l[1] + 2*l[2] + l[3]
+    add         r6, r11, r7, lsl #1     ; l[2] + 2*l[3] + l[3]
+
+
+    add         r8, r0, r8, lsl #14     ; (tl + 2*l[0] + l[1])>>2 in top half
+    add         r9, r0, r4, lsl #14     ; (l[0] + 2*l[1] + l[2])>>2 in top half
+    add         r10,r0, r5, lsl #14     ; (l[1] + 2*l[2] + l[3])>>2 in top half
+    add         r11,r0, r6, lsl #14     ; (l[2] + 2*l[3] + l[3])>>2 in top half
+
+    pkhtb       r8, r8, r8, asr #16     ; l[-|0|-|0]
+    pkhtb       r9, r9, r9, asr #16     ; l[-|1|-|1]
+    pkhtb       r10, r10, r10, asr #16  ; l[-|2|-|2]
+    pkhtb       r11, r11, r11, asr #16  ; l[-|3|-|3]
+
+    ldr         r0, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    add         r8, r8, r8, lsl #8      ; l[0|0|0|0]
+    add         r9, r9, r9, lsl #8      ; l[1|1|1|1]
+    add         r10, r10, r10, lsl #8   ; l[2|2|2|2]
+    add         r11, r11, r11, lsl #8   ; l[3|3|3|3]
+
+    ; store values
+    str         r8, [r3], r0
+    str         r9, [r3], r0
+    str         r10, [r3], r0
+    str         r11, [r3]
+
+    pop        {r4-r12, pc}
+
+b_ld_pred
+    ldr         r4, [r0]                ; Above[0-3]
+    ldr         r12, c00020002
+    ldr         r5, [r0, #4]            ; Above[4-7]
+    ldr         lr,  c00FF00FF
+
+    uxtb16      r6, r4                  ; a[2|0]
+    uxtb16      r7, r4, ror #8          ; a[3|1]
+    uxtb16      r8, r5                  ; a[6|4]
+    uxtb16      r9, r5, ror #8          ; a[7|5]
+    pkhtb       r10, r6, r8             ; a[2|4]
+    pkhtb       r11, r7, r9             ; a[3|5]
+
+    add         r4, r6, r7, lsl #1      ; [a2+2*a3      |      a0+2*a1]
+    add         r4, r4, r10, ror #16    ; [a2+2*a3+a4   |   a0+2*a1+a2]
+    uxtab16     r4, r4, r12             ; [a2+2*a3+a4+2 | a0+2*a1+a2+2]
+
+    add         r5, r7, r10, ror #15    ; [a3+2*a4      |      a1+2*a2]
+    add         r5, r5, r11, ror #16    ; [a3+2*a4+a5   |   a1+2*a2+a3]
+    uxtab16     r5, r5, r12             ; [a3+2*a4+a5+2 | a1+2*a2+a3+2]
+
+    pkhtb       r7, r9, r8, asr #16
+    add         r6, r8, r9, lsl #1      ; [a6+2*a7      |      a4+2*a5]
+    uadd16      r6, r6, r7              ; [a6+2*a7+a7   |   a4+2*a5+a6]
+    uxtab16     r6, r6, r12             ; [a6+2*a7+a7+2 | a4+2*a5+a6+2]
+
+    uxth        r7, r9                  ; [                         a5]
+    add         r7, r7, r8, asr #15     ; [                    a5+2*a6]
+    add         r7, r7, r9, asr #16     ; [                 a5+2*a6+a7]
+    uxtah       r7, r7, r12             ; [               a5+2*a6+a7+2]
+
+    ldr         r0, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    ; scale down
+    and         r4, lr, r4, asr #2
+    and         r5, lr, r5, asr #2
+    and         r6, lr, r6, asr #2
+    mov         r7, r7, asr #2
+
+    add         r8, r4, r5, lsl #8      ; [3|2|1|0]
+    str         r8, [r3], r0
+
+    mov         r9, r8, lsr #8
+    add         r9, r9, r6, lsl #24     ; [4|3|2|1]
+    str         r9, [r3], r0
+
+    mov         r10, r9, lsr #8
+    add         r10, r10, r7, lsl #24   ; [5|4|3|2]
+    str         r10, [r3], r0
+
+    mov         r6, r6, lsr #16
+    mov         r11, r10, lsr #8
+    add         r11, r11, r6, lsl #24   ; [6|5|4|3]
+    str         r11, [r3]
+
+    pop        {r4-r12, pc}
+
+b_rd_pred
+    ldrb        r7, [r1], r2            ; l[0] = pp[3]
+    ldr         lr, [r0]                ; Above = pp[8|7|6|5]
+    ldrb        r8, [sp, #48]           ; tl   = pp[4]
+    ldrb        r6, [r1], r2            ; l[1] = pp[2]
+    ldrb        r5, [r1], r2            ; l[2] = pp[1]
+    ldrb        r4, [r1], r2            ; l[3] = pp[0]
+
+
+    uxtb16      r9, lr                  ; p[7|5]
+    uxtb16      r10, lr, ror #8         ; p[8|6]
+    add         r4, r4, r6, lsl #16     ; p[2|0]
+    add         r5, r5, r7, lsl #16     ; p[3|1]
+    add         r6, r6, r8, lsl #16     ; p[4|2]
+    pkhbt       r7, r7, r9, lsl #16     ; p[5|3]
+    pkhbt       r8, r8, r10, lsl #16    ; p[6|4]
+
+    ldr         r12, c00020002
+    ldr         lr,  c00FF00FF
+
+    add         r4, r4, r5, lsl #1      ; [p2+2*p3      |      p0+2*p1]
+    add         r4, r4, r6              ; [p2+2*p3+p4   |   p0+2*p1+p2]
+    uxtab16     r4, r4, r12             ; [p2+2*p3+p4+2 | p0+2*p1+p2+2]
+
+    add         r5, r5, r6, lsl #1      ; [p3+2*p4      |      p1+2*p2]
+    add         r5, r5, r7              ; [p3+2*p4+p5   |   p1+2*p2+p3]
+    uxtab16     r5, r5, r12             ; [p3+2*p4+p5+2 | p1+2*p2+p3+2]
+
+    add         r6, r7, r8, lsl #1      ; [p5+2*p6      |      p3+2*p4]
+    add         r6, r6, r9              ; [p5+2*p6+p7   |   p3+2*p4+p5]
+    uxtab16     r6, r6, r12             ; [p5+2*p6+p7+2 | p3+2*p4+p5+2]
+
+    add         r7, r8, r9, lsl #1      ; [p6+2*p7      |      p4+2*p5]
+    add         r7, r7, r10             ; [p6+2*p7+p8   |   p4+2*p5+p6]
+    uxtab16     r7, r7, r12             ; [p6+2*p7+p8+2 | p4+2*p5+p6+2]
+
+    ldr         r0, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    ; scale down
+    and         r7, lr, r7, asr #2
+    and         r6, lr, r6, asr #2
+    and         r5, lr, r5, asr #2
+    and         r4, lr, r4, asr #2
+
+    add         r8, r6, r7, lsl #8      ; [6|5|4|3]
+    str         r8, [r3], r0
+
+    mov         r9, r8, lsl #8          ; [5|4|3|-]
+    uxtab       r9, r9, r4, ror #16     ; [5|4|3|2]
+    str         r9, [r3], r0
+
+    mov         r10, r9, lsl #8         ; [4|3|2|-]
+    uxtab       r10, r10, r5            ; [4|3|2|1]
+    str         r10, [r3], r0
+
+    mov         r11, r10, lsl #8        ; [3|2|1|-]
+    uxtab       r11, r11, r4            ; [3|2|1|0]
+    str         r11, [r3]
+
+    pop        {r4-r12, pc}
+
+b_vr_pred
+    ldrb        r7, [r1], r2            ; l[0] = pp[3]
+    ldr         lr, [r0]                ; Above = pp[8|7|6|5]
+    ldrb        r8, [sp, #48]           ; tl   = pp[4]
+    ldrb        r6, [r1], r2            ; l[1] = pp[2]
+    ldrb        r5, [r1], r2            ; l[2] = pp[1]
+    ldrb        r4, [r1]                ; l[3] = pp[0]
+
+    add         r5, r5, r7, lsl #16     ; p[3|1]
+    add         r6, r6, r8, lsl #16     ; p[4|2]
+    uxtb16      r9, lr                  ; p[7|5]
+    uxtb16      r10, lr, ror #8         ; p[8|6]
+    pkhbt       r7, r7, r9, lsl #16     ; p[5|3]
+    pkhbt       r8, r8, r10, lsl #16    ; p[6|4]
+
+    ldr         r4,  c00010001
+    ldr         r12, c00020002
+    ldr         lr,  c00FF00FF
+
+    add         r5, r5, r6, lsl #1      ; [p3+2*p4      |      p1+2*p2]
+    add         r5, r5, r7              ; [p3+2*p4+p5   |   p1+2*p2+p3]
+    uxtab16     r5, r5, r12             ; [p3+2*p4+p5+2 | p1+2*p2+p3+2]
+
+    add         r6, r6, r7, lsl #1      ; [p4+2*p5      |      p2+2*p3]
+    add         r6, r6, r8              ; [p4+2*p5+p6   |   p2+2*p3+p4]
+    uxtab16     r6, r6, r12             ; [p4+2*p5+p6+2 | p2+2*p3+p4+2]
+
+    uadd16      r11, r8, r9             ; [p6+p7        |        p4+p5]
+    uhadd16     r11, r11, r4            ; [(p6+p7+1)>>1 | (p4+p5+1)>>1]
+                                        ; [F|E]
+
+    add         r7, r7, r8, lsl #1      ; [p5+2*p6      |      p3+2*p4]
+    add         r7, r7, r9              ; [p5+2*p6+p7   |   p3+2*p4+p5]
+    uxtab16     r7, r7, r12             ; [p5+2*p6+p7+2 | p3+2*p4+p5+2]
+
+    uadd16      r2, r9, r10             ; [p7+p8        |        p5+p6]
+    uhadd16     r2, r2, r4              ; [(p7+p8+1)>>1 | (p5+p6+1)>>1]
+                                        ; [J|I]
+
+    add         r8, r8, r9, lsl #1      ; [p6+2*p7      |      p4+2*p5]
+    add         r8, r8, r10             ; [p6+2*p7+p8   |   p4+2*p5+p6]
+    uxtab16     r8, r8, r12             ; [p6+2*p7+p8+2 | p4+2*p5+p6+2]
+
+    ldr         r0, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    ; scale down
+    and         r5, lr, r5, asr #2      ; [B|A]
+    and         r6, lr, r6, asr #2      ; [D|C]
+    and         r7, lr, r7, asr #2      ; [H|G]
+    and         r8, lr, r8, asr #2      ; [L|K]
+
+    add         r12, r11, r2, lsl #8    ; [J|F|I|E]
+    str         r12, [r3], r0
+
+    add         r12, r7, r8, lsl #8     ; [L|H|K|G]
+    str         r12, [r3], r0
+
+    pkhbt       r2, r6, r2, lsl #16     ; [-|I|-|C]
+    add         r2, r2, r11, lsl #8     ; [F|I|E|C]
+
+    pkhtb       r12, r6, r5             ; [-|D|-|A]
+    pkhtb       r10, r7, r5, asr #16    ; [-|H|-|B]
+    str         r2, [r3], r0
+    add         r12, r12, r10, lsl #8   ; [H|D|B|A]
+    str         r12, [r3]
+
+    pop        {r4-r12, pc}
+
+b_vl_pred
+    ldr         r4, [r0]                ; [3|2|1|0] = Above[0-3]
+    ldr         r12, c00020002
+    ldr         r5, [r0, #4]            ; [7|6|5|4] = Above[4-7]
+    ldr         lr,  c00FF00FF
+    ldr         r2,  c00010001
+
+    mov         r0, r4, lsr #16         ; [-|-|3|2]
+    add         r0, r0, r5, lsl #16     ; [5|4|3|2]
+    uxtb16      r6, r4                  ; [2|0]
+    uxtb16      r7, r4, ror #8          ; [3|1]
+    uxtb16      r8, r0                  ; [4|2]
+    uxtb16      r9, r0, ror #8          ; [5|3]
+    uxtb16      r10, r5                 ; [6|4]
+    uxtb16      r11, r5, ror #8         ; [7|5]
+
+    uadd16      r4, r6, r7              ; [p2+p3        |        p0+p1]
+    uhadd16     r4, r4, r2              ; [(p2+p3+1)>>1 | (p0+p1+1)>>1]
+                                        ; [B|A]
+
+    add         r5, r6, r7, lsl #1      ; [p2+2*p3      |      p0+2*p1]
+    add         r5, r5, r8              ; [p2+2*p3+p4   |   p0+2*p1+p2]
+    uxtab16     r5, r5, r12             ; [p2+2*p3+p4+2 | p0+2*p1+p2+2]
+
+    uadd16      r6, r7, r8              ; [p3+p4        |        p1+p2]
+    uhadd16     r6, r6, r2              ; [(p3+p4+1)>>1 | (p1+p2+1)>>1]
+                                        ; [F|E]
+
+    add         r7, r7, r8, lsl #1      ; [p3+2*p4      |      p1+2*p2]
+    add         r7, r7, r9              ; [p3+2*p4+p5   |   p1+2*p2+p3]
+    uxtab16     r7, r7, r12             ; [p3+2*p4+p5+2 | p1+2*p2+p3+2]
+
+    add         r8, r8, r9, lsl #1      ; [p4+2*p5      |      p2+2*p3]
+    add         r8, r8, r10             ; [p4+2*p5+p6   |   p2+2*p3+p4]
+    uxtab16     r8, r8, r12             ; [p4+2*p5+p6+2 | p2+2*p3+p4+2]
+
+    add         r9, r9, r10, lsl #1     ; [p5+2*p6      |      p3+2*p4]
+    add         r9, r9, r11             ; [p5+2*p6+p7   |   p3+2*p4+p5]
+    uxtab16     r9, r9, r12             ; [p5+2*p6+p7+2 | p3+2*p4+p5+2]
+
+    ldr         r0, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    ; scale down
+    and         r5, lr, r5, asr #2      ; [D|C]
+    and         r7, lr, r7, asr #2      ; [H|G]
+    and         r8, lr, r8, asr #2      ; [I|D]
+    and         r9, lr, r9, asr #2      ; [J|H]
+
+    add         r10, r4, r6, lsl #8     ; [F|B|E|A]
+    str         r10, [r3], r0
+
+    add         r5, r5, r7, lsl #8      ; [H|C|G|D]
+    str         r5, [r3], r0
+
+    pkhtb       r12, r8, r4, asr #16    ; [-|I|-|B]
+    pkhtb       r10, r9, r8             ; [-|J|-|D]
+
+    add         r12, r6, r12, lsl #8    ; [I|F|B|E]
+    str         r12, [r3], r0
+
+    add         r10, r7, r10, lsl #8    ; [J|H|D|G]
+    str         r10, [r3]
+
+    pop        {r4-r12, pc}
+
+b_hd_pred
+    ldrb        r7, [r1], r2            ; l[0] = pp[3]
+    ldr         lr, [r0]                ; Above = pp[8|7|6|5]
+    ldrb        r8, [sp, #48]           ; tl   = pp[4]
+    ldrb        r6, [r1], r2            ; l[1] = pp[2]
+    ldrb        r5, [r1], r2            ; l[2] = pp[1]
+    ldrb        r4, [r1]                ; l[3] = pp[0]
+
+    uxtb16      r9, lr                  ; p[7|5]
+    uxtb16      r10, lr, ror #8         ; p[8|6]
+
+    add         r4, r4, r5, lsl #16     ; p[1|0]
+    add         r5, r5, r6, lsl #16     ; p[2|1]
+    add         r6, r6, r7, lsl #16     ; p[3|2]
+    add         r7, r7, r8, lsl #16     ; p[4|3]
+
+    ldr         r12, c00020002
+    ldr         lr,  c00FF00FF
+    ldr         r2,  c00010001
+
+    pkhtb       r8, r7, r9              ; p[4|5]
+    pkhtb       r1, r9, r10             ; p[7|6]
+    pkhbt       r10, r8, r10, lsl #16   ; p[6|5]
+
+    uadd16      r11, r4, r5             ; [p1+p2        |        p0+p1]
+    uhadd16     r11, r11, r2            ; [(p1+p2+1)>>1 | (p0+p1+1)>>1]
+                                        ; [B|A]
+
+    add         r4, r4, r5, lsl #1      ; [p1+2*p2      |      p0+2*p1]
+    add         r4, r4, r6              ; [p1+2*p2+p3   |   p0+2*p1+p2]
+    uxtab16     r4, r4, r12             ; [p1+2*p2+p3+2 | p0+2*p1+p2+2]
+
+    uadd16      r0, r6, r7              ; [p3+p4        |        p2+p3]
+    uhadd16     r0, r0, r2              ; [(p3+p4+1)>>1 | (p2+p3+1)>>1]
+                                        ; [F|E]
+
+    add         r5, r6, r7, lsl #1      ; [p3+2*p4      |      p2+2*p3]
+    add         r5, r5, r8, ror #16     ; [p3+2*p4+p5   |   p2+2*p3+p4]
+    uxtab16     r5, r5, r12             ; [p3+2*p4+p5+2 | p2+2*p3+p4+2]
+
+    add         r6, r12, r8, ror #16    ; [p5+2         |         p4+2]
+    add         r6, r6, r10, lsl #1     ; [p5+2+2*p6    |    p4+2+2*p5]
+    uxtab16     r6, r6, r1              ; [p5+2+2*p6+p7 | p4+2+2*p5+p6]
+
+    ; scale down
+    and         r4, lr, r4, asr #2      ; [D|C]
+    and         r5, lr, r5, asr #2      ; [H|G]
+    and         r6, lr, r6, asr #2      ; [J|I]
+
+    ldr         lr, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+
+    pkhtb       r2, r0, r6              ; [-|F|-|I]
+    pkhtb       r12, r6, r5, asr #16    ; [-|J|-|H]
+    add         r12, r12, r2, lsl #8    ; [F|J|I|H]
+    add         r2, r0, r5, lsl #8      ; [H|F|G|E]
+    mov         r12, r12, ror #24       ; [J|I|H|F]
+    str         r12, [r3], lr
+
+    mov         r7, r11, asr #16        ; [-|-|-|B]
+    str         r2, [r3], lr
+    add         r7, r7, r0, lsl #16     ; [-|E|-|B]
+    add         r7, r7, r4, asr #8      ; [-|E|D|B]
+    add         r7, r7, r5, lsl #24     ; [G|E|D|B]
+    str         r7, [r3], lr
+
+    add         r5, r11, r4, lsl #8     ; [D|B|C|A]
+    str         r5, [r3]
+
+    pop        {r4-r12, pc}
+
+
+
+b_hu_pred
+    ldrb        r4, [r1], r2            ; Left[0]
+    ldr         r12, c00020002
+    ldrb        r5, [r1], r2            ; Left[1]
+    ldr         lr,  c00FF00FF
+    ldrb        r6, [r1], r2            ; Left[2]
+    ldr         r2,  c00010001
+    ldrb        r7, [r1]                ; Left[3]
+
+    add         r4, r4, r5, lsl #16     ; [1|0]
+    add         r5, r5, r6, lsl #16     ; [2|1]
+    add         r9, r6, r7, lsl #16     ; [3|2]
+
+    uadd16      r8, r4, r5              ; [p1+p2        |        p0+p1]
+    uhadd16     r8, r8, r2              ; [(p1+p2+1)>>1 | (p0+p1+1)>>1]
+                                        ; [B|A]
+
+    add         r4, r4, r5, lsl #1      ; [p1+2*p2      |      p0+2*p1]
+    add         r4, r4, r9              ; [p1+2*p2+p3   |   p0+2*p1+p2]
+    uxtab16     r4, r4, r12             ; [p1+2*p2+p3+2 | p0+2*p1+p2+2]
+    ldr         r2, [sp, #44]           ; dst_stride
+    ldr         r3, [sp, #40]           ; dst
+    and         r4, lr, r4, asr #2      ; [D|C]
+
+    add         r10, r6, r7             ; [p2+p3]
+    add         r11, r10, r7, lsl #1    ; [p2+3*p3]
+    add         r10, r10, #1
+    add         r11, r11, #2
+    mov         r10, r10, asr #1        ; [E]
+    mov         r11, r11, asr #2        ; [F]
+
+    add         r9, r7, r9, asr #8      ; [-|-|G|G]
+    add         r0, r8, r4, lsl #8      ; [D|B|C|A]
+    add         r7, r9, r9, lsl #16     ; [G|G|G|G]
+
+    str         r0, [r3], r2
+
+    mov         r1, r8, asr #16         ; [-|-|-|B]
+    add         r1, r1, r4, asr #8      ; [-|-|D|B]
+    add         r1, r1, r10, lsl #16    ; [-|E|D|B]
+    add         r1, r1, r11, lsl #24    ; [F|E|D|B]
+    str         r1, [r3], r2
+
+    add         r10, r11, lsl #8        ; [-|-|F|E]
+    add         r10, r10, r9, lsl #16   ; [G|G|F|E]
+    str         r10, [r3], r2
+
+    str         r7, [r3]
+
+    pop        {r4-r12, pc}
+
+    ENDP
+
+; constants
+c00010001
+    DCD         0x00010001
+c00020002
+    DCD         0x00020002
+c00FF00FF
+    DCD         0x00FF00FF
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm b/media/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm
new file mode 100644
index 000000000..31ef09cad
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/iwalsh_v6.asm
@@ -0,0 +1,136 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+    EXPORT |vp8_short_inv_walsh4x4_v6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+
+;short vp8_short_inv_walsh4x4_v6(short *input, short *mb_dqcoeff)
+|vp8_short_inv_walsh4x4_v6| PROC
+
+    stmdb       sp!, {r4 - r12, lr}
+
+    ldr         r2, [r0, #0]         ; [1  |  0]
+    ldr         r3, [r0, #4]         ; [3  |  2]
+    ldr         r4, [r0, #8]         ; [5  |  4]
+    ldr         r5, [r0, #12]        ; [7  |  6]
+    ldr         r6, [r0, #16]        ; [9  |  8]
+    ldr         r7, [r0, #20]        ; [11 | 10]
+    ldr         r8, [r0, #24]        ; [13 | 12]
+    ldr         r9, [r0, #28]        ; [15 | 14]
+
+    qadd16      r10, r2, r8          ; a1 [1+13  |  0+12]
+    qadd16      r11, r4, r6          ; b1 [5+9   |  4+8]
+    qsub16      r12, r4, r6          ; c1 [5-9   |  4-8]
+    qsub16      lr, r2, r8           ; d1 [1-13  |  0-12]
+
+    qadd16      r2, r10, r11         ; a1 + b1 [1  |  0]
+    qadd16      r4, r12, lr          ; c1 + d1 [5  |  4]
+    qsub16      r6, r10, r11         ; a1 - b1 [9  |  8]
+    qsub16      r8, lr, r12          ; d1 - c1 [13 | 12]
+
+    qadd16      r10, r3, r9          ; a1 [3+15  |  2+14]
+    qadd16      r11, r5, r7          ; b1 [7+11  |  6+10]
+    qsub16      r12, r5, r7          ; c1 [7-11  |  6-10]
+    qsub16      lr, r3, r9           ; d1 [3-15  |  2-14]
+
+    qadd16      r3, r10, r11         ; a1 + b1 [3  |  2]
+    qadd16      r5, r12, lr          ; c1 + d1 [7  |  6]
+    qsub16      r7, r10, r11         ; a1 - b1 [11 | 10]
+    qsub16      r9, lr, r12          ; d1 - c1 [15 | 14]
+
+    ; first transform complete
+
+    qsubaddx    r10, r2, r3          ; [c1|a1] [1-2   |   0+3]
+    qaddsubx    r11, r2, r3          ; [b1|d1] [1+2   |   0-3]
+    qsubaddx    r12, r4, r5          ; [c1|a1] [5-6   |   4+7]
+    qaddsubx    lr, r4, r5           ; [b1|d1] [5+6   |   4-7]
+
+    qaddsubx    r2, r10, r11         ; [b2|c2] [c1+d1 | a1-b1]
+    qaddsubx    r3, r11, r10         ; [a2|d2] [b1+a1 | d1-c1]
+    ldr         r10, c0x00030003
+    qaddsubx    r4, r12, lr          ; [b2|c2] [c1+d1 | a1-b1]
+    qaddsubx    r5, lr, r12          ; [a2|d2] [b1+a1 | d1-c1]
+
+    qadd16      r2, r2, r10          ; [b2+3|c2+3]
+    qadd16      r3, r3, r10          ; [a2+3|d2+3]
+    qadd16      r4, r4, r10          ; [b2+3|c2+3]
+    qadd16      r5, r5, r10          ; [a2+3|d2+3]
+
+    asr         r12, r3, #19         ; [0]
+    strh        r12, [r1], #32
+    asr         lr, r2, #19          ; [1]
+    strh        lr, [r1], #32
+    sxth        r2, r2
+    sxth        r3, r3
+    asr         r2, r2, #3           ; [2]
+    strh        r2, [r1], #32
+    asr         r3, r3, #3           ; [3]
+    strh        r3, [r1], #32
+
+    asr         r12, r5, #19         ; [4]
+    strh        r12, [r1], #32
+    asr         lr, r4, #19          ; [5]
+    strh        lr, [r1], #32
+    sxth        r4, r4
+    sxth        r5, r5
+    asr         r4, r4, #3           ; [6]
+    strh        r4, [r1], #32
+    asr         r5, r5, #3           ; [7]
+    strh        r5, [r1], #32
+
+    qsubaddx    r2, r6, r7           ; [c1|a1] [9-10  |  8+11]
+    qaddsubx    r3, r6, r7           ; [b1|d1] [9+10  |  8-11]
+    qsubaddx    r4, r8, r9           ; [c1|a1] [13-14 | 12+15]
+    qaddsubx    r5, r8, r9           ; [b1|d1] [13+14 | 12-15]
+
+    qaddsubx    r6, r2, r3           ; [b2|c2] [c1+d1 | a1-b1]
+    qaddsubx    r7, r3, r2           ; [a2|d2] [b1+a1 | d1-c1]
+    qaddsubx    r8, r4, r5           ; [b2|c2] [c1+d1 | a1-b1]
+    qaddsubx    r9, r5, r4           ; [a2|d2] [b1+a1 | d1-c1]
+
+    qadd16      r6, r6, r10          ; [b2+3|c2+3]
+    qadd16      r7, r7, r10          ; [a2+3|d2+3]
+    qadd16      r8, r8, r10          ; [b2+3|c2+3]
+    qadd16      r9, r9, r10          ; [a2+3|d2+3]
+
+    asr         r12, r7, #19         ; [8]
+    strh        r12, [r1], #32
+    asr         lr, r6, #19          ; [9]
+    strh        lr, [r1], #32
+    sxth        r6, r6
+    sxth        r7, r7
+    asr         r6, r6, #3           ; [10]
+    strh        r6, [r1], #32
+    asr         r7, r7, #3           ; [11]
+    strh        r7, [r1], #32
+
+    asr         r12, r9, #19         ; [12]
+    strh        r12, [r1], #32
+    asr         lr, r8, #19          ; [13]
+    strh        lr, [r1], #32
+    sxth        r8, r8
+    sxth        r9, r9
+    asr         r8, r8, #3           ; [14]
+    strh        r8, [r1], #32
+    asr         r9, r9, #3           ; [15]
+    strh        r9, [r1], #32
+
+    ldmia       sp!, {r4 - r12, pc}
+    ENDP        ; |vp8_short_inv_walsh4x4_v6|
+
+
+; Constant Pool
+c0x00030003 DCD 0x00030003
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/loopfilter_v6.asm b/media/libvpx/vp8/common/arm/armv6/loopfilter_v6.asm
new file mode 100644
index 000000000..1cbbbcdef
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/loopfilter_v6.asm
@@ -0,0 +1,1282 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT |vp8_loop_filter_horizontal_edge_armv6|
+    EXPORT |vp8_mbloop_filter_horizontal_edge_armv6|
+    EXPORT |vp8_loop_filter_vertical_edge_armv6|
+    EXPORT |vp8_mbloop_filter_vertical_edge_armv6|
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+
+    MACRO
+    TRANSPOSE_MATRIX $a0, $a1, $a2, $a3, $b0, $b1, $b2, $b3
+    ; input: $a0, $a1, $a2, $a3; output: $b0, $b1, $b2, $b3
+    ; a0: 03 02 01 00
+    ; a1: 13 12 11 10
+    ; a2: 23 22 21 20
+    ; a3: 33 32 31 30
+    ;     b3 b2 b1 b0
+
+    uxtb16      $b1, $a1                    ; xx 12 xx 10
+    uxtb16      $b0, $a0                    ; xx 02 xx 00
+    uxtb16      $b3, $a3                    ; xx 32 xx 30
+    uxtb16      $b2, $a2                    ; xx 22 xx 20
+    orr         $b1, $b0, $b1, lsl #8       ; 12 02 10 00
+    orr         $b3, $b2, $b3, lsl #8       ; 32 22 30 20
+
+    uxtb16      $a1, $a1, ror #8            ; xx 13 xx 11
+    uxtb16      $a3, $a3, ror #8            ; xx 33 xx 31
+    uxtb16      $a0, $a0, ror #8            ; xx 03 xx 01
+    uxtb16      $a2, $a2, ror #8            ; xx 23 xx 21
+    orr         $a0, $a0, $a1, lsl #8       ; 13 03 11 01
+    orr         $a2, $a2, $a3, lsl #8       ; 33 23 31 21
+
+    pkhtb       $b2, $b3, $b1, asr #16      ; 32 22 12 02   -- p1
+    pkhbt       $b0, $b1, $b3, lsl #16      ; 30 20 10 00   -- p3
+
+    pkhtb       $b3, $a2, $a0, asr #16      ; 33 23 13 03   -- p0
+    pkhbt       $b1, $a0, $a2, lsl #16      ; 31 21 11 01   -- p2
+    MEND
+
+
+src         RN  r0
+pstep       RN  r1
+count       RN  r5
+
+;r0     unsigned char *src_ptr,
+;r1     int src_pixel_step,
+;r2     const char *blimit,
+;r3     const char *limit,
+;stack  const char *thresh,
+;stack  int  count
+
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+|vp8_loop_filter_horizontal_edge_armv6| PROC
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+    stmdb       sp!, {r4 - r11, lr}
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+    ldr         count, [sp, #40]            ; count for 8-in-parallel
+    ldr         r6, [sp, #36]               ; load thresh address
+    sub         sp, sp, #16                 ; create temp buffer
+
+    ldr         r9, [src], pstep            ; p3
+    ldrb        r4, [r2]                    ; blimit
+    ldr         r10, [src], pstep           ; p2
+    ldrb        r2, [r3]                    ; limit
+    ldr         r11, [src], pstep           ; p1
+    orr         r4, r4, r4, lsl #8
+    ldrb        r3, [r6]                    ; thresh
+    orr         r2, r2, r2, lsl #8
+    mov         count, count, lsl #1        ; 4-in-parallel
+    orr         r4, r4, r4, lsl #16
+    orr         r3, r3, r3, lsl #8
+    orr         r2, r2, r2, lsl #16
+    orr         r3, r3, r3, lsl #16
+
+|Hnext8|
+    ; vp8_filter_mask() function
+    ; calculate breakout conditions
+    ldr         r12, [src], pstep           ; p0
+
+    uqsub8      r6, r9, r10                 ; p3 - p2
+    uqsub8      r7, r10, r9                 ; p2 - p3
+    uqsub8      r8, r10, r11                ; p2 - p1
+    uqsub8      r10, r11, r10               ; p1 - p2
+
+    orr         r6, r6, r7                  ; abs (p3-p2)
+    orr         r8, r8, r10                 ; abs (p2-p1)
+    uqsub8      lr, r6, r2                  ; compare to limit. lr: vp8_filter_mask
+    uqsub8      r8, r8, r2                  ; compare to limit
+    uqsub8      r6, r11, r12                ; p1 - p0
+    orr         lr, lr, r8
+    uqsub8      r7, r12, r11                ; p0 - p1
+    ldr         r9, [src], pstep            ; q0
+    ldr         r10, [src], pstep           ; q1
+    orr         r6, r6, r7                  ; abs (p1-p0)
+    uqsub8      r7, r6, r2                  ; compare to limit
+    uqsub8      r8, r6, r3                  ; compare to thresh  -- save r8 for later
+    orr         lr, lr, r7
+
+    uqsub8      r6, r11, r10                ; p1 - q1
+    uqsub8      r7, r10, r11                ; q1 - p1
+    uqsub8      r11, r12, r9                ; p0 - q0
+    uqsub8      r12, r9, r12                ; q0 - p0
+    orr         r6, r6, r7                  ; abs (p1-q1)
+    ldr         r7, c0x7F7F7F7F
+    orr         r12, r11, r12               ; abs (p0-q0)
+    ldr         r11, [src], pstep           ; q2
+    uqadd8      r12, r12, r12               ; abs (p0-q0) * 2
+    and         r6, r7, r6, lsr #1          ; abs (p1-q1) / 2
+    uqsub8      r7, r9, r10                 ; q0 - q1
+    uqadd8      r12, r12, r6                ; abs (p0-q0)*2 + abs (p1-q1)/2
+    uqsub8      r6, r10, r9                 ; q1 - q0
+    uqsub8      r12, r12, r4                ; compare to flimit
+    uqsub8      r9, r11, r10                ; q2 - q1
+
+    orr         lr, lr, r12
+
+    ldr         r12, [src], pstep           ; q3
+    uqsub8      r10, r10, r11               ; q1 - q2
+    orr         r6, r7, r6                  ; abs (q1-q0)
+    orr         r10, r9, r10                ; abs (q2-q1)
+    uqsub8      r7, r6, r2                  ; compare to limit
+    uqsub8      r10, r10, r2                ; compare to limit
+    uqsub8      r6, r6, r3                  ; compare to thresh -- save r6 for later
+    orr         lr, lr, r7
+    orr         lr, lr, r10
+
+    uqsub8      r10, r12, r11               ; q3 - q2
+    uqsub8      r9, r11, r12                ; q2 - q3
+
+    mvn         r11, #0                     ; r11 == -1
+
+    orr         r10, r10, r9                ; abs (q3-q2)
+    uqsub8      r10, r10, r2                ; compare to limit
+
+    mov         r12, #0
+    orr         lr, lr, r10
+    sub         src, src, pstep, lsl #2
+
+    usub8       lr, r12, lr                 ; use usub8 instead of ssub8
+    sel         lr, r11, r12                ; filter mask: lr
+
+    cmp         lr, #0
+    beq         hskip_filter                 ; skip filtering
+
+    sub         src, src, pstep, lsl #1     ; move src pointer down by 6 lines
+
+    ;vp8_hevmask() function
+    ;calculate high edge variance
+    orr         r10, r6, r8                 ; calculate vp8_hevmask
+
+    ldr         r7, [src], pstep            ; p1
+
+    usub8       r10, r12, r10               ; use usub8 instead of ssub8
+    sel         r6, r12, r11                ; obtain vp8_hevmask: r6
+
+    ;vp8_filter() function
+    ldr         r8, [src], pstep            ; p0
+    ldr         r12, c0x80808080
+    ldr         r9, [src], pstep            ; q0
+    ldr         r10, [src], pstep           ; q1
+
+    eor         r7, r7, r12                 ; p1 offset to convert to a signed value
+    eor         r8, r8, r12                 ; p0 offset to convert to a signed value
+    eor         r9, r9, r12                 ; q0 offset to convert to a signed value
+    eor         r10, r10, r12               ; q1 offset to convert to a signed value
+
+    str         r9, [sp]                    ; store qs0 temporarily
+    str         r8, [sp, #4]                ; store ps0 temporarily
+    str         r10, [sp, #8]               ; store qs1 temporarily
+    str         r7, [sp, #12]               ; store ps1 temporarily
+
+    qsub8       r7, r7, r10                 ; vp8_signed_char_clamp(ps1-qs1)
+    qsub8       r8, r9, r8                  ; vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0))
+
+    and         r7, r7, r6                  ; vp8_filter (r7) &= hev
+
+    qadd8       r7, r7, r8
+    ldr         r9, c0x03030303             ; r9 = 3 --modified for vp8
+
+    qadd8       r7, r7, r8
+    ldr         r10, c0x04040404
+
+    qadd8       r7, r7, r8
+    and         r7, r7, lr                  ; vp8_filter &= mask;
+
+    ;modify code for vp8 -- Filter1 = vp8_filter (r7)
+    qadd8       r8 , r7 , r9                ; Filter2 (r8) = vp8_signed_char_clamp(vp8_filter+3)
+    qadd8       r7 , r7 , r10               ; vp8_filter = vp8_signed_char_clamp(vp8_filter+4)
+
+    mov         r9, #0
+    shadd8      r8 , r8 , r9                ; Filter2 >>= 3
+    shadd8      r7 , r7 , r9                ; vp8_filter >>= 3
+    shadd8      r8 , r8 , r9
+    shadd8      r7 , r7 , r9
+    shadd8      lr , r8 , r9                ; lr: Filter2
+    shadd8      r7 , r7 , r9                ; r7: filter
+
+    ;usub8      lr, r8, r10                 ; s = (s==4)*-1
+    ;sel        lr, r11, r9
+    ;usub8      r8, r10, r8
+    ;sel        r8, r11, r9
+    ;and        r8, r8, lr                  ; -1 for each element that equals 4
+
+    ;calculate output
+    ;qadd8      lr, r8, r7                  ; u = vp8_signed_char_clamp(s + vp8_filter)
+
+    ldr         r8, [sp]                    ; load qs0
+    ldr         r9, [sp, #4]                ; load ps0
+
+    ldr         r10, c0x01010101
+
+    qsub8       r8 ,r8, r7                  ; u = vp8_signed_char_clamp(qs0 - vp8_filter)
+    qadd8       r9, r9, lr                  ; u = vp8_signed_char_clamp(ps0 + Filter2)
+
+    ;end of modification for vp8
+
+    mov         lr, #0
+    sadd8       r7, r7 , r10                ; vp8_filter += 1
+    shadd8      r7, r7, lr                  ; vp8_filter >>= 1
+
+    ldr         r11, [sp, #12]              ; load ps1
+    ldr         r10, [sp, #8]               ; load qs1
+
+    bic         r7, r7, r6                  ; vp8_filter &= ~hev
+    sub         src, src, pstep, lsl #2
+
+    qadd8       r11, r11, r7                ; u = vp8_signed_char_clamp(ps1 + vp8_filter)
+    qsub8       r10, r10,r7                 ; u = vp8_signed_char_clamp(qs1 - vp8_filter)
+
+    eor         r11, r11, r12               ; *op1 = u^0x80
+    str         r11, [src], pstep           ; store op1
+    eor         r9, r9, r12                 ; *op0 = u^0x80
+    str         r9, [src], pstep            ; store op0 result
+    eor         r8, r8, r12                 ; *oq0 = u^0x80
+    str         r8, [src], pstep            ; store oq0 result
+    eor         r10, r10, r12               ; *oq1 = u^0x80
+    str         r10, [src], pstep           ; store oq1
+
+    sub         src, src, pstep, lsl #1
+
+|hskip_filter|
+    add         src, src, #4
+    sub         src, src, pstep, lsl #2
+
+    subs        count, count, #1
+
+    ldrne       r9, [src], pstep            ; p3
+    ldrne       r10, [src], pstep           ; p2
+    ldrne       r11, [src], pstep           ; p1
+
+    bne         Hnext8
+
+    add         sp, sp, #16
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_loop_filter_horizontal_edge_armv6|
+
+
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+|vp8_mbloop_filter_horizontal_edge_armv6| PROC
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+    stmdb       sp!, {r4 - r11, lr}
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+    ldr         count, [sp, #40]            ; count for 8-in-parallel
+    ldr         r6, [sp, #36]               ; load thresh address
+    sub         sp, sp, #16                 ; create temp buffer
+
+    ldr         r9, [src], pstep            ; p3
+    ldrb        r4, [r2]                    ; blimit
+    ldr         r10, [src], pstep           ; p2
+    ldrb        r2, [r3]                    ; limit
+    ldr         r11, [src], pstep           ; p1
+    orr         r4, r4, r4, lsl #8
+    ldrb        r3, [r6]                    ; thresh
+    orr         r2, r2, r2, lsl #8
+    mov         count, count, lsl #1        ; 4-in-parallel
+    orr         r4, r4, r4, lsl #16
+    orr         r3, r3, r3, lsl #8
+    orr         r2, r2, r2, lsl #16
+    orr         r3, r3, r3, lsl #16
+
+|MBHnext8|
+
+    ; vp8_filter_mask() function
+    ; calculate breakout conditions
+    ldr         r12, [src], pstep           ; p0
+
+    uqsub8      r6, r9, r10                 ; p3 - p2
+    uqsub8      r7, r10, r9                 ; p2 - p3
+    uqsub8      r8, r10, r11                ; p2 - p1
+    uqsub8      r10, r11, r10               ; p1 - p2
+
+    orr         r6, r6, r7                  ; abs (p3-p2)
+    orr         r8, r8, r10                 ; abs (p2-p1)
+    uqsub8      lr, r6, r2                  ; compare to limit. lr: vp8_filter_mask
+    uqsub8      r8, r8, r2                  ; compare to limit
+
+    uqsub8      r6, r11, r12                ; p1 - p0
+    orr         lr, lr, r8
+    uqsub8      r7, r12, r11                ; p0 - p1
+    ldr         r9, [src], pstep            ; q0
+    ldr         r10, [src], pstep           ; q1
+    orr         r6, r6, r7                  ; abs (p1-p0)
+    uqsub8      r7, r6, r2                  ; compare to limit
+    uqsub8      r8, r6, r3                  ; compare to thresh  -- save r8 for later
+    orr         lr, lr, r7
+
+    uqsub8      r6, r11, r10                ; p1 - q1
+    uqsub8      r7, r10, r11                ; q1 - p1
+    uqsub8      r11, r12, r9                ; p0 - q0
+    uqsub8      r12, r9, r12                ; q0 - p0
+    orr         r6, r6, r7                  ; abs (p1-q1)
+    ldr         r7, c0x7F7F7F7F
+    orr         r12, r11, r12               ; abs (p0-q0)
+    ldr         r11, [src], pstep           ; q2
+    uqadd8      r12, r12, r12               ; abs (p0-q0) * 2
+    and         r6, r7, r6, lsr #1          ; abs (p1-q1) / 2
+    uqsub8      r7, r9, r10                 ; q0 - q1
+    uqadd8      r12, r12, r6                ; abs (p0-q0)*2 + abs (p1-q1)/2
+    uqsub8      r6, r10, r9                 ; q1 - q0
+    uqsub8      r12, r12, r4                ; compare to flimit
+    uqsub8      r9, r11, r10                ; q2 - q1
+
+    orr         lr, lr, r12
+
+    ldr         r12, [src], pstep           ; q3
+
+    uqsub8      r10, r10, r11               ; q1 - q2
+    orr         r6, r7, r6                  ; abs (q1-q0)
+    orr         r10, r9, r10                ; abs (q2-q1)
+    uqsub8      r7, r6, r2                  ; compare to limit
+    uqsub8      r10, r10, r2                ; compare to limit
+    uqsub8      r6, r6, r3                  ; compare to thresh -- save r6 for later
+    orr         lr, lr, r7
+    orr         lr, lr, r10
+
+    uqsub8      r10, r12, r11               ; q3 - q2
+    uqsub8      r9, r11, r12                ; q2 - q3
+
+    mvn         r11, #0                     ; r11 == -1
+
+    orr         r10, r10, r9                ; abs (q3-q2)
+    uqsub8      r10, r10, r2                ; compare to limit
+
+    mov         r12, #0
+
+    orr         lr, lr, r10
+
+    usub8       lr, r12, lr                 ; use usub8 instead of ssub8
+    sel         lr, r11, r12                ; filter mask: lr
+
+    cmp         lr, #0
+    beq         mbhskip_filter               ; skip filtering
+
+    ;vp8_hevmask() function
+    ;calculate high edge variance
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 6 lines
+    sub         src, src, pstep, lsl #1
+
+    orr         r10, r6, r8
+    ldr         r7, [src], pstep            ; p1
+
+    usub8       r10, r12, r10
+    sel         r6, r12, r11                ; hev mask: r6
+
+    ;vp8_mbfilter() function
+    ;p2, q2 are only needed at the end. Don't need to load them in now.
+    ldr         r8, [src], pstep            ; p0
+    ldr         r12, c0x80808080
+    ldr         r9, [src], pstep            ; q0
+    ldr         r10, [src]                  ; q1
+
+    eor         r7, r7, r12                 ; ps1
+    eor         r8, r8, r12                 ; ps0
+    eor         r9, r9, r12                 ; qs0
+    eor         r10, r10, r12               ; qs1
+
+    qsub8       r12, r9, r8                 ; vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0))
+    str         r7, [sp, #12]               ; store ps1 temporarily
+    qsub8       r7, r7, r10                 ; vp8_signed_char_clamp(ps1-qs1)
+    str         r10, [sp, #8]               ; store qs1 temporarily
+    qadd8       r7, r7, r12
+    str         r9, [sp]                    ; store qs0 temporarily
+    qadd8       r7, r7, r12
+    str         r8, [sp, #4]                ; store ps0 temporarily
+    qadd8       r7, r7, r12                 ; vp8_filter: r7
+
+    ldr         r10, c0x03030303            ; r10 = 3 --modified for vp8
+    ldr         r9, c0x04040404
+
+    and         r7, r7, lr                  ; vp8_filter &= mask (lr is free)
+
+    mov         r12, r7                     ; Filter2: r12
+    and         r12, r12, r6                ; Filter2 &= hev
+
+    ;modify code for vp8
+    ;save bottom 3 bits so that we round one side +4 and the other +3
+    qadd8       r8 , r12 , r9               ; Filter1 (r8) = vp8_signed_char_clamp(Filter2+4)
+    qadd8       r12 , r12 , r10             ; Filter2 (r12) = vp8_signed_char_clamp(Filter2+3)
+
+    mov         r10, #0
+    shadd8      r8 , r8 , r10               ; Filter1 >>= 3
+    shadd8      r12 , r12 , r10             ; Filter2 >>= 3
+    shadd8      r8 , r8 , r10
+    shadd8      r12 , r12 , r10
+    shadd8      r8 , r8 , r10               ; r8: Filter1
+    shadd8      r12 , r12 , r10             ; r12: Filter2
+
+    ldr         r9, [sp]                    ; load qs0
+    ldr         r11, [sp, #4]               ; load ps0
+
+    qsub8       r9 , r9, r8                 ; qs0 = vp8_signed_char_clamp(qs0 - Filter1)
+    qadd8       r11, r11, r12               ; ps0 = vp8_signed_char_clamp(ps0 + Filter2)
+
+    ;save bottom 3 bits so that we round one side +4 and the other +3
+    ;and            r8, r12, r10                ; s = Filter2 & 7 (s: r8)
+    ;qadd8      r12 , r12 , r9              ; Filter2 = vp8_signed_char_clamp(Filter2+4)
+    ;mov            r10, #0
+    ;shadd8     r12 , r12 , r10             ; Filter2 >>= 3
+    ;usub8      lr, r8, r9                  ; s = (s==4)*-1
+    ;sel            lr, r11, r10
+    ;shadd8     r12 , r12 , r10
+    ;usub8      r8, r9, r8
+    ;sel            r8, r11, r10
+    ;ldr            r9, [sp]                    ; load qs0
+    ;ldr            r11, [sp, #4]               ; load ps0
+    ;shadd8     r12 , r12 , r10
+    ;and            r8, r8, lr                  ; -1 for each element that equals 4
+    ;qadd8      r10, r8, r12                ; u = vp8_signed_char_clamp(s + Filter2)
+    ;qsub8      r9 , r9, r12                ; qs0 = vp8_signed_char_clamp(qs0 - Filter2)
+    ;qadd8      r11, r11, r10               ; ps0 = vp8_signed_char_clamp(ps0 + u)
+
+    ;end of modification for vp8
+
+    bic         r12, r7, r6                 ; vp8_filter &= ~hev    ( r6 is free)
+    ;mov        r12, r7
+
+    ;roughly 3/7th difference across boundary
+    mov         lr, #0x1b                   ; 27
+    mov         r7, #0x3f                   ; 63
+
+    sxtb16      r6, r12
+    sxtb16      r10, r12, ror #8
+    smlabb      r8, r6, lr, r7
+    smlatb      r6, r6, lr, r7
+    smlabb      r7, r10, lr, r7
+    smultb      r10, r10, lr
+    ssat        r8, #8, r8, asr #7
+    ssat        r6, #8, r6, asr #7
+    add         r10, r10, #63
+    ssat        r7, #8, r7, asr #7
+    ssat        r10, #8, r10, asr #7
+
+    ldr         lr, c0x80808080
+
+    pkhbt       r6, r8, r6, lsl #16
+    pkhbt       r10, r7, r10, lsl #16
+    uxtb16      r6, r6
+    uxtb16      r10, r10
+
+    sub         src, src, pstep
+
+    orr         r10, r6, r10, lsl #8        ; u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7)
+
+    qsub8       r8, r9, r10                 ; s = vp8_signed_char_clamp(qs0 - u)
+    qadd8       r10, r11, r10               ; s = vp8_signed_char_clamp(ps0 + u)
+    eor         r8, r8, lr                  ; *oq0 = s^0x80
+    str         r8, [src]                   ; store *oq0
+    sub         src, src, pstep
+    eor         r10, r10, lr                ; *op0 = s^0x80
+    str         r10, [src]                  ; store *op0
+
+    ;roughly 2/7th difference across boundary
+    mov         lr, #0x12                   ; 18
+    mov         r7, #0x3f                   ; 63
+
+    sxtb16      r6, r12
+    sxtb16      r10, r12, ror #8
+    smlabb      r8, r6, lr, r7
+    smlatb      r6, r6, lr, r7
+    smlabb      r9, r10, lr, r7
+    smlatb      r10, r10, lr, r7
+    ssat        r8, #8, r8, asr #7
+    ssat        r6, #8, r6, asr #7
+    ssat        r9, #8, r9, asr #7
+    ssat        r10, #8, r10, asr #7
+
+    ldr         lr, c0x80808080
+
+    pkhbt       r6, r8, r6, lsl #16
+    pkhbt       r10, r9, r10, lsl #16
+
+    ldr         r9, [sp, #8]                ; load qs1
+    ldr         r11, [sp, #12]              ; load ps1
+
+    uxtb16      r6, r6
+    uxtb16      r10, r10
+
+    sub         src, src, pstep
+
+    orr         r10, r6, r10, lsl #8        ; u = vp8_signed_char_clamp((63 + Filter2 * 18)>>7)
+
+    qadd8       r11, r11, r10               ; s = vp8_signed_char_clamp(ps1 + u)
+    qsub8       r8, r9, r10                 ; s = vp8_signed_char_clamp(qs1 - u)
+    eor         r11, r11, lr                ; *op1 = s^0x80
+    str         r11, [src], pstep           ; store *op1
+    eor         r8, r8, lr                  ; *oq1 = s^0x80
+    add         src, src, pstep, lsl #1
+
+    mov         r7, #0x3f                   ; 63
+
+    str         r8, [src], pstep            ; store *oq1
+
+    ;roughly 1/7th difference across boundary
+    mov         lr, #0x9                    ; 9
+    ldr         r9, [src]                   ; load q2
+
+    sxtb16      r6, r12
+    sxtb16      r10, r12, ror #8
+    smlabb      r8, r6, lr, r7
+    smlatb      r6, r6, lr, r7
+    smlabb      r12, r10, lr, r7
+    smlatb      r10, r10, lr, r7
+    ssat        r8, #8, r8, asr #7
+    ssat        r6, #8, r6, asr #7
+    ssat        r12, #8, r12, asr #7
+    ssat        r10, #8, r10, asr #7
+
+    sub         src, src, pstep, lsl #2
+
+    pkhbt       r6, r8, r6, lsl #16
+    pkhbt       r10, r12, r10, lsl #16
+
+    sub         src, src, pstep
+    ldr         lr, c0x80808080
+
+    ldr         r11, [src]                  ; load p2
+
+    uxtb16      r6, r6
+    uxtb16      r10, r10
+
+    eor         r9, r9, lr
+    eor         r11, r11, lr
+
+    orr         r10, r6, r10, lsl #8        ; u = vp8_signed_char_clamp((63 + Filter2 * 9)>>7)
+
+    qadd8       r8, r11, r10                ; s = vp8_signed_char_clamp(ps2 + u)
+    qsub8       r10, r9, r10                ; s = vp8_signed_char_clamp(qs2 - u)
+    eor         r8, r8, lr                  ; *op2 = s^0x80
+    str         r8, [src], pstep, lsl #2    ; store *op2
+    add         src, src, pstep
+    eor         r10, r10, lr                ; *oq2 = s^0x80
+    str         r10, [src], pstep, lsl #1   ; store *oq2
+
+|mbhskip_filter|
+    add         src, src, #4
+    sub         src, src, pstep, lsl #3
+    subs        count, count, #1
+
+    ldrne       r9, [src], pstep            ; p3
+    ldrne       r10, [src], pstep           ; p2
+    ldrne       r11, [src], pstep           ; p1
+
+    bne         MBHnext8
+
+    add         sp, sp, #16
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_mbloop_filter_horizontal_edge_armv6|
+
+
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+|vp8_loop_filter_vertical_edge_armv6| PROC
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+    stmdb       sp!, {r4 - r11, lr}
+
+    sub         src, src, #4                ; move src pointer down by 4
+    ldr         count, [sp, #40]            ; count for 8-in-parallel
+    ldr         r12, [sp, #36]              ; load thresh address
+    sub         sp, sp, #16                 ; create temp buffer
+
+    ldr         r6, [src], pstep            ; load source data
+    ldrb        r4, [r2]                    ; blimit
+    ldr         r7, [src], pstep
+    ldrb        r2, [r3]                    ; limit
+    ldr         r8, [src], pstep
+    orr         r4, r4, r4, lsl #8
+    ldrb        r3, [r12]                   ; thresh
+    orr         r2, r2, r2, lsl #8
+    ldr         lr, [src], pstep
+    mov         count, count, lsl #1        ; 4-in-parallel
+    orr         r4, r4, r4, lsl #16
+    orr         r3, r3, r3, lsl #8
+    orr         r2, r2, r2, lsl #16
+    orr         r3, r3, r3, lsl #16
+
+|Vnext8|
+
+    ; vp8_filter_mask() function
+    ; calculate breakout conditions
+    ; transpose the source data for 4-in-parallel operation
+    TRANSPOSE_MATRIX r6, r7, r8, lr, r9, r10, r11, r12
+
+    uqsub8      r7, r9, r10                 ; p3 - p2
+    uqsub8      r8, r10, r9                 ; p2 - p3
+    uqsub8      r9, r10, r11                ; p2 - p1
+    uqsub8      r10, r11, r10               ; p1 - p2
+    orr         r7, r7, r8                  ; abs (p3-p2)
+    orr         r10, r9, r10                ; abs (p2-p1)
+    uqsub8      lr, r7, r2                  ; compare to limit. lr: vp8_filter_mask
+    uqsub8      r10, r10, r2                ; compare to limit
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+
+    orr         lr, lr, r10
+
+    uqsub8      r6, r11, r12                ; p1 - p0
+    uqsub8      r7, r12, r11                ; p0 - p1
+    add         src, src, #4                ; move src pointer up by 4
+    orr         r6, r6, r7                  ; abs (p1-p0)
+    str         r11, [sp, #12]              ; save p1
+    uqsub8      r10, r6, r2                 ; compare to limit
+    uqsub8      r11, r6, r3                 ; compare to thresh
+    orr         lr, lr, r10
+
+    ; transpose uses 8 regs(r6 - r12 and lr). Need to save reg value now
+    ; transpose the source data for 4-in-parallel operation
+    ldr         r6, [src], pstep            ; load source data
+    str         r11, [sp]                   ; push r11 to stack
+    ldr         r7, [src], pstep
+    str         r12, [sp, #4]               ; save current reg before load q0 - q3 data
+    ldr         r8, [src], pstep
+    str         lr, [sp, #8]
+    ldr         lr, [src], pstep
+
+    TRANSPOSE_MATRIX r6, r7, r8, lr, r9, r10, r11, r12
+
+    ldr         lr, [sp, #8]                ; load back (f)limit accumulator
+
+    uqsub8      r6, r12, r11                ; q3 - q2
+    uqsub8      r7, r11, r12                ; q2 - q3
+    uqsub8      r12, r11, r10               ; q2 - q1
+    uqsub8      r11, r10, r11               ; q1 - q2
+    orr         r6, r6, r7                  ; abs (q3-q2)
+    orr         r7, r12, r11                ; abs (q2-q1)
+    uqsub8      r6, r6, r2                  ; compare to limit
+    uqsub8      r7, r7, r2                  ; compare to limit
+    ldr         r11, [sp, #4]               ; load back p0
+    ldr         r12, [sp, #12]              ; load back p1
+    orr         lr, lr, r6
+    orr         lr, lr, r7
+
+    uqsub8      r6, r11, r9                 ; p0 - q0
+    uqsub8      r7, r9, r11                 ; q0 - p0
+    uqsub8      r8, r12, r10                ; p1 - q1
+    uqsub8      r11, r10, r12               ; q1 - p1
+    orr         r6, r6, r7                  ; abs (p0-q0)
+    ldr         r7, c0x7F7F7F7F
+    orr         r8, r8, r11                 ; abs (p1-q1)
+    uqadd8      r6, r6, r6                  ; abs (p0-q0) * 2
+    and         r8, r7, r8, lsr #1          ; abs (p1-q1) / 2
+    uqsub8      r11, r10, r9                ; q1 - q0
+    uqadd8      r6, r8, r6                  ; abs (p0-q0)*2 + abs (p1-q1)/2
+    uqsub8      r12, r9, r10                ; q0 - q1
+    uqsub8      r6, r6, r4                  ; compare to flimit
+
+    orr         r9, r11, r12                ; abs (q1-q0)
+    uqsub8      r8, r9, r2                  ; compare to limit
+    uqsub8      r10, r9, r3                 ; compare to thresh
+    orr         lr, lr, r6
+    orr         lr, lr, r8
+
+    mvn         r11, #0                     ; r11 == -1
+    mov         r12, #0
+
+    usub8       lr, r12, lr
+    ldr         r9, [sp]                    ; load the compared result
+    sel         lr, r11, r12                ; filter mask: lr
+
+    cmp         lr, #0
+    beq         vskip_filter                 ; skip filtering
+
+    ;vp8_hevmask() function
+    ;calculate high edge variance
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+
+    orr         r9, r9, r10
+
+    ldrh        r7, [src, #-2]
+    ldrh        r8, [src], pstep
+
+    usub8       r9, r12, r9
+    sel         r6, r12, r11                ; hev mask: r6
+
+    ;vp8_filter() function
+    ; load soure data to r6, r11, r12, lr
+    ldrh        r9, [src, #-2]
+    ldrh        r10, [src], pstep
+
+    pkhbt       r12, r7, r8, lsl #16
+
+    ldrh        r7, [src, #-2]
+    ldrh        r8, [src], pstep
+
+    pkhbt       r11, r9, r10, lsl #16
+
+    ldrh        r9, [src, #-2]
+    ldrh        r10, [src], pstep
+
+    ; Transpose needs 8 regs(r6 - r12, and lr). Save r6 and lr first
+    str         r6, [sp]
+    str         lr, [sp, #4]
+
+    pkhbt       r6, r7, r8, lsl #16
+    pkhbt       lr, r9, r10, lsl #16
+
+    ;transpose r12, r11, r6, lr to r7, r8, r9, r10
+    TRANSPOSE_MATRIX r12, r11, r6, lr, r7, r8, r9, r10
+
+    ;load back hev_mask r6 and filter_mask lr
+    ldr         r12, c0x80808080
+    ldr         r6, [sp]
+    ldr         lr, [sp, #4]
+
+    eor         r7, r7, r12                 ; p1 offset to convert to a signed value
+    eor         r8, r8, r12                 ; p0 offset to convert to a signed value
+    eor         r9, r9, r12                 ; q0 offset to convert to a signed value
+    eor         r10, r10, r12               ; q1 offset to convert to a signed value
+
+    str         r9, [sp]                    ; store qs0 temporarily
+    str         r8, [sp, #4]                ; store ps0 temporarily
+    str         r10, [sp, #8]               ; store qs1 temporarily
+    str         r7, [sp, #12]               ; store ps1 temporarily
+
+    qsub8       r7, r7, r10                 ; vp8_signed_char_clamp(ps1-qs1)
+    qsub8       r8, r9, r8                  ; vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0))
+
+    and         r7, r7, r6                  ;  vp8_filter (r7) &= hev (r7 : filter)
+
+    qadd8       r7, r7, r8
+    ldr         r9, c0x03030303             ; r9 = 3 --modified for vp8
+
+    qadd8       r7, r7, r8
+    ldr         r10, c0x04040404
+
+    qadd8       r7, r7, r8
+    ;mvn         r11, #0                     ; r11 == -1
+
+    and         r7, r7, lr                  ; vp8_filter &= mask
+
+    ;modify code for vp8 -- Filter1 = vp8_filter (r7)
+    qadd8       r8 , r7 , r9                ; Filter2 (r8) = vp8_signed_char_clamp(vp8_filter+3)
+    qadd8       r7 , r7 , r10               ; vp8_filter = vp8_signed_char_clamp(vp8_filter+4)
+
+    mov         r9, #0
+    shadd8      r8 , r8 , r9                ; Filter2 >>= 3
+    shadd8      r7 , r7 , r9                ; vp8_filter >>= 3
+    shadd8      r8 , r8 , r9
+    shadd8      r7 , r7 , r9
+    shadd8      lr , r8 , r9                ; lr: filter2
+    shadd8      r7 , r7 , r9                ; r7: filter
+
+    ;usub8      lr, r8, r10                 ; s = (s==4)*-1
+    ;sel            lr, r11, r9
+    ;usub8      r8, r10, r8
+    ;sel            r8, r11, r9
+    ;and            r8, r8, lr                  ; -1 for each element that equals 4 -- r8: s
+
+    ;calculate output
+    ;qadd8      lr, r8, r7                  ; u = vp8_signed_char_clamp(s + vp8_filter)
+
+    ldr         r8, [sp]                    ; load qs0
+    ldr         r9, [sp, #4]                ; load ps0
+
+    ldr         r10, c0x01010101
+
+    qsub8       r8, r8, r7                  ; u = vp8_signed_char_clamp(qs0 - vp8_filter)
+    qadd8       r9, r9, lr                  ; u = vp8_signed_char_clamp(ps0 + Filter2)
+    ;end of modification for vp8
+
+    eor         r8, r8, r12
+    eor         r9, r9, r12
+
+    mov         lr, #0
+
+    sadd8       r7, r7, r10
+    shadd8      r7, r7, lr
+
+    ldr         r10, [sp, #8]               ; load qs1
+    ldr         r11, [sp, #12]              ; load ps1
+
+    bic         r7, r7, r6                  ; r7: vp8_filter
+
+    qsub8       r10 , r10, r7               ; u = vp8_signed_char_clamp(qs1 - vp8_filter)
+    qadd8       r11, r11, r7                ; u = vp8_signed_char_clamp(ps1 + vp8_filter)
+    eor         r10, r10, r12
+    eor         r11, r11, r12
+
+    sub         src, src, pstep, lsl #2
+
+    ;we can use TRANSPOSE_MATRIX macro to transpose output - input: q1, q0, p0, p1
+    ;output is b0, b1, b2, b3
+    ;b0: 03 02 01 00
+    ;b1: 13 12 11 10
+    ;b2: 23 22 21 20
+    ;b3: 33 32 31 30
+    ;    p1 p0 q0 q1
+    ;   (a3 a2 a1 a0)
+    TRANSPOSE_MATRIX r11, r9, r8, r10, r6, r7, r12, lr
+
+    strh        r6, [src, #-2]              ; store the result
+    mov         r6, r6, lsr #16
+    strh        r6, [src], pstep
+
+    strh        r7, [src, #-2]
+    mov         r7, r7, lsr #16
+    strh        r7, [src], pstep
+
+    strh        r12, [src, #-2]
+    mov         r12, r12, lsr #16
+    strh        r12, [src], pstep
+
+    strh        lr, [src, #-2]
+    mov         lr, lr, lsr #16
+    strh        lr, [src], pstep
+
+|vskip_filter|
+    sub         src, src, #4
+    subs        count, count, #1
+
+    ldrne       r6, [src], pstep            ; load source data
+    ldrne       r7, [src], pstep
+    ldrne       r8, [src], pstep
+    ldrne       lr, [src], pstep
+
+    bne         Vnext8
+
+    add         sp, sp, #16
+
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_loop_filter_vertical_edge_armv6|
+
+
+
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+|vp8_mbloop_filter_vertical_edge_armv6| PROC
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+    stmdb       sp!, {r4 - r11, lr}
+
+    sub         src, src, #4                ; move src pointer down by 4
+    ldr         count, [sp, #40]            ; count for 8-in-parallel
+    ldr         r12, [sp, #36]              ; load thresh address
+    pld         [src, #23]                  ; preload for next block
+    sub         sp, sp, #16                 ; create temp buffer
+
+    ldr         r6, [src], pstep            ; load source data
+    ldrb        r4, [r2]                    ; blimit
+    pld         [src, #23]
+    ldr         r7, [src], pstep
+    ldrb        r2, [r3]                    ; limit
+    pld         [src, #23]
+    ldr         r8, [src], pstep
+    orr         r4, r4, r4, lsl #8
+    ldrb        r3, [r12]                   ; thresh
+    orr         r2, r2, r2, lsl #8
+    pld         [src, #23]
+    ldr         lr, [src], pstep
+    mov         count, count, lsl #1        ; 4-in-parallel
+    orr         r4, r4, r4, lsl #16
+    orr         r3, r3, r3, lsl #8
+    orr         r2, r2, r2, lsl #16
+    orr         r3, r3, r3, lsl #16
+
+|MBVnext8|
+    ; vp8_filter_mask() function
+    ; calculate breakout conditions
+    ; transpose the source data for 4-in-parallel operation
+    TRANSPOSE_MATRIX r6, r7, r8, lr, r9, r10, r11, r12
+
+    uqsub8      r7, r9, r10                 ; p3 - p2
+    uqsub8      r8, r10, r9                 ; p2 - p3
+    uqsub8      r9, r10, r11                ; p2 - p1
+    uqsub8      r10, r11, r10               ; p1 - p2
+    orr         r7, r7, r8                  ; abs (p3-p2)
+    orr         r10, r9, r10                ; abs (p2-p1)
+    uqsub8      lr, r7, r2                  ; compare to limit. lr: vp8_filter_mask
+    uqsub8      r10, r10, r2                ; compare to limit
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+
+    orr         lr, lr, r10
+
+    uqsub8      r6, r11, r12                ; p1 - p0
+    uqsub8      r7, r12, r11                ; p0 - p1
+    add         src, src, #4                ; move src pointer up by 4
+    orr         r6, r6, r7                  ; abs (p1-p0)
+    str         r11, [sp, #12]              ; save p1
+    uqsub8      r10, r6, r2                 ; compare to limit
+    uqsub8      r11, r6, r3                 ; compare to thresh
+    orr         lr, lr, r10
+
+    ; transpose uses 8 regs(r6 - r12 and lr). Need to save reg value now
+    ; transpose the source data for 4-in-parallel operation
+    ldr         r6, [src], pstep            ; load source data
+    str         r11, [sp]                   ; push r11 to stack
+    ldr         r7, [src], pstep
+    str         r12, [sp, #4]               ; save current reg before load q0 - q3 data
+    ldr         r8, [src], pstep
+    str         lr, [sp, #8]
+    ldr         lr, [src], pstep
+
+
+    TRANSPOSE_MATRIX r6, r7, r8, lr, r9, r10, r11, r12
+
+    ldr         lr, [sp, #8]                ; load back (f)limit accumulator
+
+    uqsub8      r6, r12, r11                ; q3 - q2
+    uqsub8      r7, r11, r12                ; q2 - q3
+    uqsub8      r12, r11, r10               ; q2 - q1
+    uqsub8      r11, r10, r11               ; q1 - q2
+    orr         r6, r6, r7                  ; abs (q3-q2)
+    orr         r7, r12, r11                ; abs (q2-q1)
+    uqsub8      r6, r6, r2                  ; compare to limit
+    uqsub8      r7, r7, r2                  ; compare to limit
+    ldr         r11, [sp, #4]               ; load back p0
+    ldr         r12, [sp, #12]              ; load back p1
+    orr         lr, lr, r6
+    orr         lr, lr, r7
+
+    uqsub8      r6, r11, r9                 ; p0 - q0
+    uqsub8      r7, r9, r11                 ; q0 - p0
+    uqsub8      r8, r12, r10                ; p1 - q1
+    uqsub8      r11, r10, r12               ; q1 - p1
+    orr         r6, r6, r7                  ; abs (p0-q0)
+    ldr         r7, c0x7F7F7F7F
+    orr         r8, r8, r11                 ; abs (p1-q1)
+    uqadd8      r6, r6, r6                  ; abs (p0-q0) * 2
+    and         r8, r7, r8, lsr #1          ; abs (p1-q1) / 2
+    uqsub8      r11, r10, r9                ; q1 - q0
+    uqadd8      r6, r8, r6                  ; abs (p0-q0)*2 + abs (p1-q1)/2
+    uqsub8      r12, r9, r10                ; q0 - q1
+    uqsub8      r6, r6, r4                  ; compare to flimit
+
+    orr         r9, r11, r12                ; abs (q1-q0)
+    uqsub8      r8, r9, r2                  ; compare to limit
+    uqsub8      r10, r9, r3                 ; compare to thresh
+    orr         lr, lr, r6
+    orr         lr, lr, r8
+
+    mvn         r11, #0                     ; r11 == -1
+    mov         r12, #0
+
+    usub8       lr, r12, lr
+    ldr         r9, [sp]                    ; load the compared result
+    sel         lr, r11, r12                ; filter mask: lr
+
+    cmp         lr, #0
+    beq         mbvskip_filter               ; skip filtering
+
+
+
+    ;vp8_hevmask() function
+    ;calculate high edge variance
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+
+    orr         r9, r9, r10
+
+    ldrh        r7, [src, #-2]
+    ldrh        r8, [src], pstep
+
+    usub8       r9, r12, r9
+    sel         r6, r12, r11                ; hev mask: r6
+
+
+    ; vp8_mbfilter() function
+    ; p2, q2 are only needed at the end. Don't need to load them in now.
+    ; Transpose needs 8 regs(r6 - r12, and lr). Save r6 and lr first
+    ; load soure data to r6, r11, r12, lr
+    ldrh        r9, [src, #-2]
+    ldrh        r10, [src], pstep
+
+    pkhbt       r12, r7, r8, lsl #16
+
+    ldrh        r7, [src, #-2]
+    ldrh        r8, [src], pstep
+
+    pkhbt       r11, r9, r10, lsl #16
+
+    ldrh        r9, [src, #-2]
+    ldrh        r10, [src], pstep
+
+    str         r6, [sp]                    ; save r6
+    str         lr, [sp, #4]                ; save lr
+
+    pkhbt       r6, r7, r8, lsl #16
+    pkhbt       lr, r9, r10, lsl #16
+
+    ;transpose r12, r11, r6, lr to p1, p0, q0, q1
+    TRANSPOSE_MATRIX r12, r11, r6, lr, r7, r8, r9, r10
+
+    ;load back hev_mask r6 and filter_mask lr
+    ldr         r12, c0x80808080
+    ldr         r6, [sp]
+    ldr         lr, [sp, #4]
+
+    eor         r7, r7, r12                 ; ps1
+    eor         r8, r8, r12                 ; ps0
+    eor         r9, r9, r12                 ; qs0
+    eor         r10, r10, r12               ; qs1
+
+    qsub8       r12, r9, r8                 ; vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0))
+    str         r7, [sp, #12]               ; store ps1 temporarily
+    qsub8       r7, r7, r10                 ; vp8_signed_char_clamp(ps1-qs1)
+    str         r10, [sp, #8]               ; store qs1 temporarily
+    qadd8       r7, r7, r12
+    str         r9, [sp]                    ; store qs0 temporarily
+    qadd8       r7, r7, r12
+    str         r8, [sp, #4]                ; store ps0 temporarily
+    qadd8       r7, r7, r12                 ; vp8_filter: r7
+
+    ldr         r10, c0x03030303            ; r10 = 3 --modified for vp8
+    ldr         r9, c0x04040404
+    ;mvn         r11, #0                     ; r11 == -1
+
+    and         r7, r7, lr                  ; vp8_filter &= mask (lr is free)
+
+    mov         r12, r7                     ; Filter2: r12
+    and         r12, r12, r6                ; Filter2 &= hev
+
+    ;modify code for vp8
+    ;save bottom 3 bits so that we round one side +4 and the other +3
+    qadd8       r8 , r12 , r9               ; Filter1 (r8) = vp8_signed_char_clamp(Filter2+4)
+    qadd8       r12 , r12 , r10             ; Filter2 (r12) = vp8_signed_char_clamp(Filter2+3)
+
+    mov         r10, #0
+    shadd8      r8 , r8 , r10               ; Filter1 >>= 3
+    shadd8      r12 , r12 , r10             ; Filter2 >>= 3
+    shadd8      r8 , r8 , r10
+    shadd8      r12 , r12 , r10
+    shadd8      r8 , r8 , r10               ; r8: Filter1
+    shadd8      r12 , r12 , r10             ; r12: Filter2
+
+    ldr         r9, [sp]                    ; load qs0
+    ldr         r11, [sp, #4]               ; load ps0
+
+    qsub8       r9 , r9, r8                 ; qs0 = vp8_signed_char_clamp(qs0 - Filter1)
+    qadd8       r11, r11, r12               ; ps0 = vp8_signed_char_clamp(ps0 + Filter2)
+
+    ;save bottom 3 bits so that we round one side +4 and the other +3
+    ;and            r8, r12, r10                ; s = Filter2 & 7 (s: r8)
+    ;qadd8      r12 , r12 , r9              ; Filter2 = vp8_signed_char_clamp(Filter2+4)
+    ;mov            r10, #0
+    ;shadd8     r12 , r12 , r10             ; Filter2 >>= 3
+    ;usub8      lr, r8, r9                  ; s = (s==4)*-1
+    ;sel            lr, r11, r10
+    ;shadd8     r12 , r12 , r10
+    ;usub8      r8, r9, r8
+    ;sel            r8, r11, r10
+    ;ldr            r9, [sp]                    ; load qs0
+    ;ldr            r11, [sp, #4]               ; load ps0
+    ;shadd8     r12 , r12 , r10
+    ;and            r8, r8, lr                  ; -1 for each element that equals 4
+    ;qadd8      r10, r8, r12                ; u = vp8_signed_char_clamp(s + Filter2)
+    ;qsub8      r9 , r9, r12                ; qs0 = vp8_signed_char_clamp(qs0 - Filter2)
+    ;qadd8      r11, r11, r10               ; ps0 = vp8_signed_char_clamp(ps0 + u)
+
+    ;end of modification for vp8
+
+    bic         r12, r7, r6                 ;vp8_filter &= ~hev    ( r6 is free)
+    ;mov            r12, r7
+
+    ;roughly 3/7th difference across boundary
+    mov         lr, #0x1b                   ; 27
+    mov         r7, #0x3f                   ; 63
+
+    sxtb16      r6, r12
+    sxtb16      r10, r12, ror #8
+    smlabb      r8, r6, lr, r7
+    smlatb      r6, r6, lr, r7
+    smlabb      r7, r10, lr, r7
+    smultb      r10, r10, lr
+    ssat        r8, #8, r8, asr #7
+    ssat        r6, #8, r6, asr #7
+    add         r10, r10, #63
+    ssat        r7, #8, r7, asr #7
+    ssat        r10, #8, r10, asr #7
+
+    ldr         lr, c0x80808080
+
+    pkhbt       r6, r8, r6, lsl #16
+    pkhbt       r10, r7, r10, lsl #16
+    uxtb16      r6, r6
+    uxtb16      r10, r10
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+
+    orr         r10, r6, r10, lsl #8        ; u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7)
+
+    qsub8       r8, r9, r10                 ; s = vp8_signed_char_clamp(qs0 - u)
+    qadd8       r10, r11, r10               ; s = vp8_signed_char_clamp(ps0 + u)
+    eor         r8, r8, lr                  ; *oq0 = s^0x80
+    eor         r10, r10, lr                ; *op0 = s^0x80
+
+    strb        r10, [src, #-1]             ; store op0 result
+    strb        r8, [src], pstep            ; store oq0 result
+    mov         r10, r10, lsr #8
+    mov         r8, r8, lsr #8
+    strb        r10, [src, #-1]
+    strb        r8, [src], pstep
+    mov         r10, r10, lsr #8
+    mov         r8, r8, lsr #8
+    strb        r10, [src, #-1]
+    strb        r8, [src], pstep
+    mov         r10, r10, lsr #8
+    mov         r8, r8, lsr #8
+    strb        r10, [src, #-1]
+    strb        r8, [src], pstep
+
+    ;roughly 2/7th difference across boundary
+    mov         lr, #0x12                   ; 18
+    mov         r7, #0x3f                   ; 63
+
+    sxtb16      r6, r12
+    sxtb16      r10, r12, ror #8
+    smlabb      r8, r6, lr, r7
+    smlatb      r6, r6, lr, r7
+    smlabb      r9, r10, lr, r7
+
+    smlatb      r10, r10, lr, r7
+    ssat        r8, #8, r8, asr #7
+    ssat        r6, #8, r6, asr #7
+    ssat        r9, #8, r9, asr #7
+    ssat        r10, #8, r10, asr #7
+
+    sub         src, src, pstep, lsl #2     ; move src pointer down by 4 lines
+
+    pkhbt       r6, r8, r6, lsl #16
+    pkhbt       r10, r9, r10, lsl #16
+
+    ldr         r9, [sp, #8]                ; load qs1
+    ldr         r11, [sp, #12]              ; load ps1
+    ldr         lr, c0x80808080
+
+    uxtb16      r6, r6
+    uxtb16      r10, r10
+
+    add         src, src, #2
+
+    orr         r10, r6, r10, lsl #8        ; u = vp8_signed_char_clamp((63 + Filter2 * 18)>>7)
+
+    qsub8       r8, r9, r10                 ; s = vp8_signed_char_clamp(qs1 - u)
+    qadd8       r10, r11, r10               ; s = vp8_signed_char_clamp(ps1 + u)
+    eor         r8, r8, lr                  ; *oq1 = s^0x80
+    eor         r10, r10, lr                ; *op1 = s^0x80
+
+    ldrb        r11, [src, #-5]             ; load p2 for 1/7th difference across boundary
+    strb        r10, [src, #-4]             ; store op1
+    strb        r8, [src, #-1]              ; store oq1
+    ldrb        r9, [src], pstep            ; load q2 for 1/7th difference across boundary
+
+    mov         r10, r10, lsr #8
+    mov         r8, r8, lsr #8
+
+    ldrb        r6, [src, #-5]
+    strb        r10, [src, #-4]
+    strb        r8, [src, #-1]
+    ldrb        r7, [src], pstep
+
+    mov         r10, r10, lsr #8
+    mov         r8, r8, lsr #8
+    orr         r11, r11, r6, lsl #8
+    orr         r9, r9, r7, lsl #8
+
+    ldrb        r6, [src, #-5]
+    strb        r10, [src, #-4]
+    strb        r8, [src, #-1]
+    ldrb        r7, [src], pstep
+
+    mov         r10, r10, lsr #8
+    mov         r8, r8, lsr #8
+    orr         r11, r11, r6, lsl #16
+    orr         r9, r9, r7, lsl #16
+
+    ldrb        r6, [src, #-5]
+    strb        r10, [src, #-4]
+    strb        r8, [src, #-1]
+    ldrb        r7, [src], pstep
+    orr         r11, r11, r6, lsl #24
+    orr         r9, r9, r7, lsl #24
+
+    ;roughly 1/7th difference across boundary
+    eor         r9, r9, lr
+    eor         r11, r11, lr
+
+    mov         lr, #0x9                    ; 9
+    mov         r7, #0x3f                   ; 63
+
+    sxtb16      r6, r12
+    sxtb16      r10, r12, ror #8
+    smlabb      r8, r6, lr, r7
+    smlatb      r6, r6, lr, r7
+    smlabb      r12, r10, lr, r7
+    smlatb      r10, r10, lr, r7
+    ssat        r8, #8, r8, asr #7
+    ssat        r6, #8, r6, asr #7
+    ssat        r12, #8, r12, asr #7
+    ssat        r10, #8, r10, asr #7
+
+    sub         src, src, pstep, lsl #2
+
+    pkhbt       r6, r8, r6, lsl #16
+    pkhbt       r10, r12, r10, lsl #16
+
+    uxtb16      r6, r6
+    uxtb16      r10, r10
+
+    ldr         lr, c0x80808080
+
+    orr         r10, r6, r10, lsl #8        ; u = vp8_signed_char_clamp((63 + Filter2 * 9)>>7)
+
+    qadd8       r8, r11, r10                ; s = vp8_signed_char_clamp(ps2 + u)
+    qsub8       r10, r9, r10                ; s = vp8_signed_char_clamp(qs2 - u)
+    eor         r8, r8, lr                  ; *op2 = s^0x80
+    eor         r10, r10, lr                ; *oq2 = s^0x80
+
+    strb        r8, [src, #-5]              ; store *op2
+    strb        r10, [src], pstep           ; store *oq2
+    mov         r8, r8, lsr #8
+    mov         r10, r10, lsr #8
+    strb        r8, [src, #-5]
+    strb        r10, [src], pstep
+    mov         r8, r8, lsr #8
+    mov         r10, r10, lsr #8
+    strb        r8, [src, #-5]
+    strb        r10, [src], pstep
+    mov         r8, r8, lsr #8
+    mov         r10, r10, lsr #8
+    strb        r8, [src, #-5]
+    strb        r10, [src], pstep
+
+    ;adjust src pointer for next loop
+    sub         src, src, #2
+
+|mbvskip_filter|
+    sub         src, src, #4
+    subs        count, count, #1
+
+    pld         [src, #23]                  ; preload for next block
+    ldrne       r6, [src], pstep            ; load source data
+    pld         [src, #23]
+    ldrne       r7, [src], pstep
+    pld         [src, #23]
+    ldrne       r8, [src], pstep
+    pld         [src, #23]
+    ldrne       lr, [src], pstep
+
+    bne         MBVnext8
+
+    add         sp, sp, #16
+
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_mbloop_filter_vertical_edge_armv6|
+
+; Constant Pool
+c0x80808080 DCD     0x80808080
+c0x03030303 DCD     0x03030303
+c0x04040404 DCD     0x04040404
+c0x01010101 DCD     0x01010101
+c0x7F7F7F7F DCD     0x7F7F7F7F
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/simpleloopfilter_v6.asm b/media/libvpx/vp8/common/arm/armv6/simpleloopfilter_v6.asm
new file mode 100644
index 000000000..5e00cf01b
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/simpleloopfilter_v6.asm
@@ -0,0 +1,286 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT |vp8_loop_filter_simple_horizontal_edge_armv6|
+    EXPORT |vp8_loop_filter_simple_vertical_edge_armv6|
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+
+    MACRO
+    TRANSPOSE_MATRIX $a0, $a1, $a2, $a3, $b0, $b1, $b2, $b3
+    ; input: $a0, $a1, $a2, $a3; output: $b0, $b1, $b2, $b3
+    ; a0: 03 02 01 00
+    ; a1: 13 12 11 10
+    ; a2: 23 22 21 20
+    ; a3: 33 32 31 30
+    ;     b3 b2 b1 b0
+
+    uxtb16      $b1, $a1                    ; xx 12 xx 10
+    uxtb16      $b0, $a0                    ; xx 02 xx 00
+    uxtb16      $b3, $a3                    ; xx 32 xx 30
+    uxtb16      $b2, $a2                    ; xx 22 xx 20
+    orr         $b1, $b0, $b1, lsl #8       ; 12 02 10 00
+    orr         $b3, $b2, $b3, lsl #8       ; 32 22 30 20
+
+    uxtb16      $a1, $a1, ror #8            ; xx 13 xx 11
+    uxtb16      $a3, $a3, ror #8            ; xx 33 xx 31
+    uxtb16      $a0, $a0, ror #8            ; xx 03 xx 01
+    uxtb16      $a2, $a2, ror #8            ; xx 23 xx 21
+    orr         $a0, $a0, $a1, lsl #8       ; 13 03 11 01
+    orr         $a2, $a2, $a3, lsl #8       ; 33 23 31 21
+
+    pkhtb       $b2, $b3, $b1, asr #16      ; 32 22 12 02   -- p1
+    pkhbt       $b0, $b1, $b3, lsl #16      ; 30 20 10 00   -- p3
+
+    pkhtb       $b3, $a2, $a0, asr #16      ; 33 23 13 03   -- p0
+    pkhbt       $b1, $a0, $a2, lsl #16      ; 31 21 11 01   -- p2
+    MEND
+
+
+
+src         RN  r0
+pstep       RN  r1
+
+;r0     unsigned char *src_ptr,
+;r1     int src_pixel_step,
+;r2     const char *blimit
+
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+|vp8_loop_filter_simple_horizontal_edge_armv6| PROC
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+    stmdb       sp!, {r4 - r11, lr}
+
+    ldrb        r12, [r2]                   ; blimit
+    ldr         r3, [src, -pstep, lsl #1]   ; p1
+    ldr         r4, [src, -pstep]           ; p0
+    ldr         r5, [src]                   ; q0
+    ldr         r6, [src, pstep]            ; q1
+    orr         r12, r12, r12, lsl #8       ; blimit
+    ldr         r2, c0x80808080
+    orr         r12, r12, r12, lsl #16      ; blimit
+    mov         r9, #4                      ; double the count. we're doing 4 at a time
+    mov         lr, #0                      ; need 0 in a couple places
+
+|simple_hnext8|
+    ; vp8_simple_filter_mask()
+
+    uqsub8      r7, r3, r6                  ; p1 - q1
+    uqsub8      r8, r6, r3                  ; q1 - p1
+    uqsub8      r10, r4, r5                 ; p0 - q0
+    uqsub8      r11, r5, r4                 ; q0 - p0
+    orr         r8, r8, r7                  ; abs(p1 - q1)
+    orr         r10, r10, r11               ; abs(p0 - q0)
+    uqadd8      r10, r10, r10               ; abs(p0 - q0) * 2
+    uhadd8      r8, r8, lr                  ; abs(p1 - q2) >> 1
+    uqadd8      r10, r10, r8                ; abs(p0 - q0)*2 + abs(p1 - q1)/2
+    mvn         r8, #0
+    usub8       r10, r12, r10               ; compare to flimit. usub8 sets GE flags
+    sel         r10, r8, lr                 ; filter mask: F or 0
+    cmp         r10, #0
+    beq         simple_hskip_filter         ; skip filtering if all masks are 0x00
+
+    ;vp8_simple_filter()
+
+    eor         r3, r3, r2                  ; p1 offset to convert to a signed value
+    eor         r6, r6, r2                  ; q1 offset to convert to a signed value
+    eor         r4, r4, r2                  ; p0 offset to convert to a signed value
+    eor         r5, r5, r2                  ; q0 offset to convert to a signed value
+
+    qsub8       r3, r3, r6                  ; vp8_filter = p1 - q1
+    qsub8       r6, r5, r4                  ; q0 - p0
+    qadd8       r3, r3, r6                  ; += q0 - p0
+    ldr         r7, c0x04040404
+    qadd8       r3, r3, r6                  ; += q0 - p0
+    ldr         r8, c0x03030303
+    qadd8       r3, r3, r6                  ; vp8_filter = p1-q1 + 3*(q0-p0))
+    ;STALL
+    and         r3, r3, r10                 ; vp8_filter &= mask
+
+    qadd8       r7 , r3 , r7                ; Filter1 = vp8_filter + 4
+    qadd8       r8 , r3 , r8                ; Filter2 = vp8_filter + 3
+
+    shadd8      r7 , r7 , lr
+    shadd8      r8 , r8 , lr
+    shadd8      r7 , r7 , lr
+    shadd8      r8 , r8 , lr
+    shadd8      r7 , r7 , lr                ; Filter1 >>= 3
+    shadd8      r8 , r8 , lr                ; Filter2 >>= 3
+
+    qsub8       r5 ,r5, r7                  ; u = q0 - Filter1
+    qadd8       r4, r4, r8                  ; u = p0 + Filter2
+    eor         r5, r5, r2                  ; *oq0 = u^0x80
+    str         r5, [src]                   ; store oq0 result
+    eor         r4, r4, r2                  ; *op0 = u^0x80
+    str         r4, [src, -pstep]           ; store op0 result
+
+|simple_hskip_filter|
+    subs        r9, r9, #1
+    addne       src, src, #4                ; next row
+
+    ldrne       r3, [src, -pstep, lsl #1]   ; p1
+    ldrne       r4, [src, -pstep]           ; p0
+    ldrne       r5, [src]                   ; q0
+    ldrne       r6, [src, pstep]            ; q1
+
+    bne         simple_hnext8
+
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_loop_filter_simple_horizontal_edge_armv6|
+
+
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+|vp8_loop_filter_simple_vertical_edge_armv6| PROC
+;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+    stmdb       sp!, {r4 - r11, lr}
+
+    ldrb        r12, [r2]                   ; r12: blimit
+    ldr         r2, c0x80808080
+    orr         r12, r12, r12, lsl #8
+
+    ; load soure data to r7, r8, r9, r10
+    ldrh        r3, [src, #-2]
+    pld         [src, #23]                  ; preload for next block
+    ldrh        r4, [src], pstep
+    orr         r12, r12, r12, lsl #16
+
+    ldrh        r5, [src, #-2]
+    pld         [src, #23]
+    ldrh        r6, [src], pstep
+
+    pkhbt       r7, r3, r4, lsl #16
+
+    ldrh        r3, [src, #-2]
+    pld         [src, #23]
+    ldrh        r4, [src], pstep
+
+    pkhbt       r8, r5, r6, lsl #16
+
+    ldrh        r5, [src, #-2]
+    pld         [src, #23]
+    ldrh        r6, [src], pstep
+    mov         r11, #4                     ; double the count. we're doing 4 at a time
+
+|simple_vnext8|
+    ; vp8_simple_filter_mask() function
+    pkhbt       r9, r3, r4, lsl #16
+    pkhbt       r10, r5, r6, lsl #16
+
+    ;transpose r7, r8, r9, r10 to r3, r4, r5, r6
+    TRANSPOSE_MATRIX r7, r8, r9, r10, r3, r4, r5, r6
+
+    uqsub8      r7, r3, r6                  ; p1 - q1
+    uqsub8      r8, r6, r3                  ; q1 - p1
+    uqsub8      r9, r4, r5                  ; p0 - q0
+    uqsub8      r10, r5, r4                 ; q0 - p0
+    orr         r7, r7, r8                  ; abs(p1 - q1)
+    orr         r9, r9, r10                 ; abs(p0 - q0)
+    mov         r8, #0
+    uqadd8      r9, r9, r9                  ; abs(p0 - q0) * 2
+    uhadd8      r7, r7, r8                  ; abs(p1 - q1) / 2
+    uqadd8      r7, r7, r9                  ; abs(p0 - q0)*2 + abs(p1 - q1)/2
+    mvn         r10, #0                     ; r10 == -1
+
+    usub8       r7, r12, r7                 ; compare to flimit
+    sel         lr, r10, r8                 ; filter mask
+
+    cmp         lr, #0
+    beq         simple_vskip_filter         ; skip filtering
+
+    ;vp8_simple_filter() function
+    eor         r3, r3, r2                  ; p1 offset to convert to a signed value
+    eor         r6, r6, r2                  ; q1 offset to convert to a signed value
+    eor         r4, r4, r2                  ; p0 offset to convert to a signed value
+    eor         r5, r5, r2                  ; q0 offset to convert to a signed value
+
+    qsub8       r3, r3, r6                  ; vp8_filter = p1 - q1
+    qsub8       r6, r5, r4                  ; q0 - p0
+
+    qadd8       r3, r3, r6                  ; vp8_filter += q0 - p0
+    ldr         r9, c0x03030303             ; r9 = 3
+
+    qadd8       r3, r3, r6                  ; vp8_filter += q0 - p0
+    ldr         r7, c0x04040404
+
+    qadd8       r3, r3, r6                  ; vp8_filter = p1-q1 + 3*(q0-p0))
+    ;STALL
+    and         r3, r3, lr                  ; vp8_filter &= mask
+
+    qadd8       r9 , r3 , r9                ; Filter2 = vp8_filter + 3
+    qadd8       r3 , r3 , r7                ; Filter1 = vp8_filter + 4
+
+    shadd8      r9 , r9 , r8
+    shadd8      r3 , r3 , r8
+    shadd8      r9 , r9 , r8
+    shadd8      r3 , r3 , r8
+    shadd8      r9 , r9 , r8                ; Filter2 >>= 3
+    shadd8      r3 , r3 , r8                ; Filter1 >>= 3
+
+    ;calculate output
+    sub         src, src, pstep, lsl #2
+
+    qadd8       r4, r4, r9                  ; u = p0 + Filter2
+    qsub8       r5, r5, r3                  ; u = q0 - Filter1
+    eor         r4, r4, r2                  ; *op0 = u^0x80
+    eor         r5, r5, r2                  ; *oq0 = u^0x80
+
+    strb        r4, [src, #-1]              ; store the result
+    mov         r4, r4, lsr #8
+    strb        r5, [src], pstep
+    mov         r5, r5, lsr #8
+
+    strb        r4, [src, #-1]
+    mov         r4, r4, lsr #8
+    strb        r5, [src], pstep
+    mov         r5, r5, lsr #8
+
+    strb        r4, [src, #-1]
+    mov         r4, r4, lsr #8
+    strb        r5, [src], pstep
+    mov         r5, r5, lsr #8
+
+    strb        r4, [src, #-1]
+    strb        r5, [src], pstep
+
+|simple_vskip_filter|
+    subs        r11, r11, #1
+
+    ; load soure data to r7, r8, r9, r10
+    ldrneh      r3, [src, #-2]
+    pld         [src, #23]                  ; preload for next block
+    ldrneh      r4, [src], pstep
+
+    ldrneh      r5, [src, #-2]
+    pld         [src, #23]
+    ldrneh      r6, [src], pstep
+
+    pkhbt       r7, r3, r4, lsl #16
+
+    ldrneh      r3, [src, #-2]
+    pld         [src, #23]
+    ldrneh      r4, [src], pstep
+
+    pkhbt       r8, r5, r6, lsl #16
+
+    ldrneh      r5, [src, #-2]
+    pld         [src, #23]
+    ldrneh      r6, [src], pstep
+
+    bne         simple_vnext8
+
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_loop_filter_simple_vertical_edge_armv6|
+
+; Constant Pool
+c0x80808080 DCD     0x80808080
+c0x03030303 DCD     0x03030303
+c0x04040404 DCD     0x04040404
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/sixtappredict8x4_v6.asm b/media/libvpx/vp8/common/arm/armv6/sixtappredict8x4_v6.asm
new file mode 100644
index 000000000..e81aef53d
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/sixtappredict8x4_v6.asm
@@ -0,0 +1,273 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_sixtap_predict8x4_armv6|
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+;-------------------------------------
+; r0    unsigned char *src_ptr,
+; r1    int  src_pixels_per_line,
+; r2    int  xoffset,
+; r3    int  yoffset,
+; stack unsigned char *dst_ptr,
+; stack int  dst_pitch
+;-------------------------------------
+;note: In first pass, store the result in transpose(8linesx9columns) on stack. Temporary stack size is 184.
+;Line width is 20 that is 9 short data plus 2 to make it 4bytes aligned. In second pass, load data from stack,
+;and the result is stored in transpose.
+|vp8_sixtap_predict8x4_armv6| PROC
+    stmdb       sp!, {r4 - r11, lr}
+    str         r3, [sp, #-184]!            ;reserve space on stack for temporary storage, store yoffset
+
+    cmp         r2, #0                      ;skip first_pass filter if xoffset=0
+    add         lr, sp, #4                  ;point to temporary buffer
+    beq         skip_firstpass_filter
+
+;first-pass filter
+    adr         r12, filter8_coeff
+    sub         r0, r0, r1, lsl #1
+
+    add         r3, r1, #10                 ; preload next low
+    pld         [r0, r3]
+
+    add         r2, r12, r2, lsl #4         ;calculate filter location
+    add         r0, r0, #3                  ;adjust src only for loading convinience
+
+    ldr         r3, [r2]                    ; load up packed filter coefficients
+    ldr         r4, [r2, #4]
+    ldr         r5, [r2, #8]
+
+    mov         r2, #0x90000                ; height=9 is top part of counter
+
+    sub         r1, r1, #8
+
+|first_pass_hloop_v6|
+    ldrb        r6, [r0, #-5]               ; load source data
+    ldrb        r7, [r0, #-4]
+    ldrb        r8, [r0, #-3]
+    ldrb        r9, [r0, #-2]
+    ldrb        r10, [r0, #-1]
+
+    orr         r2, r2, #0x4                ; construct loop counter. width=8=4x2
+
+    pkhbt       r6, r6, r7, lsl #16         ; r7 | r6
+    pkhbt       r7, r7, r8, lsl #16         ; r8 | r7
+
+    pkhbt       r8, r8, r9, lsl #16         ; r9 | r8
+    pkhbt       r9, r9, r10, lsl #16        ; r10 | r9
+
+|first_pass_wloop_v6|
+    smuad       r11, r6, r3                 ; vp8_filter[0], vp8_filter[1]
+    smuad       r12, r7, r3
+
+    ldrb        r6, [r0], #1
+
+    smlad       r11, r8, r4, r11            ; vp8_filter[2], vp8_filter[3]
+    ldrb        r7, [r0], #1
+    smlad       r12, r9, r4, r12
+
+    pkhbt       r10, r10, r6, lsl #16       ; r10 | r9
+    pkhbt       r6, r6, r7, lsl #16         ; r11 | r10
+    smlad       r11, r10, r5, r11           ; vp8_filter[4], vp8_filter[5]
+    smlad       r12, r6, r5, r12
+
+    sub         r2, r2, #1
+
+    add         r11, r11, #0x40             ; round_shift_and_clamp
+    tst         r2, #0xff                   ; test loop counter
+    usat        r11, #8, r11, asr #7
+    add         r12, r12, #0x40
+    strh        r11, [lr], #20              ; result is transposed and stored, which
+    usat        r12, #8, r12, asr #7
+
+    strh        r12, [lr], #20
+
+    movne       r11, r6
+    movne       r12, r7
+
+    movne       r6, r8
+    movne       r7, r9
+    movne       r8, r10
+    movne       r9, r11
+    movne       r10, r12
+
+    bne         first_pass_wloop_v6
+
+    ;;add       r9, ppl, #30                ; attempt to load 2 adjacent cache lines
+    ;;IF ARCHITECTURE=6
+    ;pld        [src, ppl]
+    ;;pld       [src, r9]
+    ;;ENDIF
+
+    subs        r2, r2, #0x10000
+
+    sub         lr, lr, #158
+
+    add         r0, r0, r1                  ; move to next input line
+
+    add         r11, r1, #18                ; preload next low. adding back block width(=8), which is subtracted earlier
+    pld         [r0, r11]
+
+    bne         first_pass_hloop_v6
+
+;second pass filter
+secondpass_filter
+    ldr         r3, [sp], #4                ; load back yoffset
+    ldr         r0, [sp, #216]              ; load dst address from stack 180+36
+    ldr         r1, [sp, #220]              ; load dst stride from stack 180+40
+
+    cmp         r3, #0
+    beq         skip_secondpass_filter
+
+    adr         r12, filter8_coeff
+    add         lr, r12, r3, lsl #4         ;calculate filter location
+
+    mov         r2, #0x00080000
+
+    ldr         r3, [lr]                    ; load up packed filter coefficients
+    ldr         r4, [lr, #4]
+    ldr         r5, [lr, #8]
+
+    pkhbt       r12, r4, r3                 ; pack the filter differently
+    pkhbt       r11, r5, r4
+
+second_pass_hloop_v6
+    ldr         r6, [sp]                    ; load the data
+    ldr         r7, [sp, #4]
+
+    orr         r2, r2, #2                  ; loop counter
+
+second_pass_wloop_v6
+    smuad       lr, r3, r6                  ; apply filter
+    smulbt      r10, r3, r6
+
+    ldr         r8, [sp, #8]
+
+    smlad       lr, r4, r7, lr
+    smladx      r10, r12, r7, r10
+
+    ldrh        r9, [sp, #12]
+
+    smlad       lr, r5, r8, lr
+    smladx      r10, r11, r8, r10
+
+    add         sp, sp, #4
+    smlatb      r10, r5, r9, r10
+
+    sub         r2, r2, #1
+
+    add         lr, lr, #0x40               ; round_shift_and_clamp
+    tst         r2, #0xff
+    usat        lr, #8, lr, asr #7
+    add         r10, r10, #0x40
+    strb        lr, [r0], r1                ; the result is transposed back and stored
+    usat        r10, #8, r10, asr #7
+
+    strb        r10, [r0],r1
+
+    movne       r6, r7
+    movne       r7, r8
+
+    bne         second_pass_wloop_v6
+
+    subs        r2, r2, #0x10000
+    add         sp, sp, #12                 ; updata src for next loop (20-8)
+    sub         r0, r0, r1, lsl #2
+    add         r0, r0, #1
+
+    bne         second_pass_hloop_v6
+
+    add         sp, sp, #20
+    ldmia       sp!, {r4 - r11, pc}
+
+;--------------------
+skip_firstpass_filter
+    sub         r0, r0, r1, lsl #1
+    sub         r1, r1, #8
+    mov         r2, #9
+
+skip_firstpass_hloop
+    ldrb        r4, [r0], #1                ; load data
+    subs        r2, r2, #1
+    ldrb        r5, [r0], #1
+    strh        r4, [lr], #20               ; store it to immediate buffer
+    ldrb        r6, [r0], #1                ; load data
+    strh        r5, [lr], #20
+    ldrb        r7, [r0], #1
+    strh        r6, [lr], #20
+    ldrb        r8, [r0], #1
+    strh        r7, [lr], #20
+    ldrb        r9, [r0], #1
+    strh        r8, [lr], #20
+    ldrb        r10, [r0], #1
+    strh        r9, [lr], #20
+    ldrb        r11, [r0], #1
+    strh        r10, [lr], #20
+    add         r0, r0, r1                  ; move to next input line
+    strh        r11, [lr], #20
+
+    sub         lr, lr, #158                ; move over to next column
+    bne         skip_firstpass_hloop
+
+    b           secondpass_filter
+
+;--------------------
+skip_secondpass_filter
+    mov         r2, #8
+    add         sp, sp, #4                  ;start from src[0] instead of src[-2]
+
+skip_secondpass_hloop
+    ldr         r6, [sp], #4
+    subs        r2, r2, #1
+    ldr         r8, [sp], #4
+
+    mov         r7, r6, lsr #16             ; unpack
+    strb        r6, [r0], r1
+    mov         r9, r8, lsr #16
+    strb        r7, [r0], r1
+    add         sp, sp, #12                 ; 20-8
+    strb        r8, [r0], r1
+    strb        r9, [r0], r1
+
+    sub         r0, r0, r1, lsl #2
+    add         r0, r0, #1
+
+    bne         skip_secondpass_hloop
+
+    add         sp, sp, #16                 ; 180 - (160 +4)
+
+    ldmia       sp!, {r4 - r11, pc}
+
+    ENDP
+
+;-----------------
+;One word each is reserved. Label filter_coeff can be used to access the data.
+;Data address: filter_coeff, filter_coeff+4, filter_coeff+8 ...
+filter8_coeff
+    DCD     0x00000000,     0x00000080,     0x00000000,     0x00000000
+    DCD     0xfffa0000,     0x000c007b,     0x0000ffff,     0x00000000
+    DCD     0xfff50002,     0x0024006c,     0x0001fff8,     0x00000000
+    DCD     0xfff70000,     0x0032005d,     0x0000fffa,     0x00000000
+    DCD     0xfff00003,     0x004d004d,     0x0003fff0,     0x00000000
+    DCD     0xfffa0000,     0x005d0032,     0x0000fff7,     0x00000000
+    DCD     0xfff80001,     0x006c0024,     0x0002fff5,     0x00000000
+    DCD     0xffff0000,     0x007b000c,     0x0000fffa,     0x00000000
+
+    ;DCD        0,  0,  128,    0,   0,  0
+    ;DCD        0, -6,  123,   12,  -1,  0
+    ;DCD        2, -11, 108,   36,  -8,  1
+    ;DCD        0, -9,   93,   50,  -6,  0
+    ;DCD        3, -16,  77,   77, -16,  3
+    ;DCD        0, -6,   50,   93,  -9,  0
+    ;DCD        1, -8,   36,  108, -11,  2
+    ;DCD        0, -1,   12,  123,  -6,  0
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_h_armv6.asm b/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_h_armv6.asm
new file mode 100644
index 000000000..3668dc517
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_h_armv6.asm
@@ -0,0 +1,182 @@
+;
+;  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_variance_halfpixvar16x16_h_armv6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+; r0    unsigned char *src_ptr
+; r1    int source_stride
+; r2    unsigned char *ref_ptr
+; r3    int  recon_stride
+; stack unsigned int *sse
+|vp8_variance_halfpixvar16x16_h_armv6| PROC
+
+    stmfd   sp!, {r4-r12, lr}
+
+    pld     [r0, r1, lsl #0]
+    pld     [r2, r3, lsl #0]
+
+    mov     r8, #0              ; initialize sum = 0
+    ldr     r10, c80808080
+    mov     r11, #0             ; initialize sse = 0
+    mov     r12, #16            ; set loop counter to 16 (=block height)
+    mov     lr, #0              ; constant zero
+loop
+    ; 1st 4 pixels
+    ldr     r4, [r0, #0]        ; load 4 src pixels
+    ldr     r6, [r0, #1]        ; load 4 src pixels with 1 byte offset
+    ldr     r5, [r2, #0]        ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    usub8   r6, r4, r5          ; calculate difference
+    pld     [r0, r1, lsl #1]
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    pld     [r2, r3, lsl #1]
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+    ; calculate total sum
+    adds    r8, r8, r4          ; add positive differences to sum
+    subs    r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 2nd 4 pixels
+    ldr     r4, [r0, #4]        ; load 4 src pixels
+    ldr     r6, [r0, #5]        ; load 4 src pixels with 1 byte offset
+    ldr     r5, [r2, #4]        ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    usub8   r6, r4, r5          ; calculate difference
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 3rd 4 pixels
+    ldr     r4, [r0, #8]        ; load 4 src pixels
+    ldr     r6, [r0, #9]        ; load 4 src pixels with 1 byte offset
+    ldr     r5, [r2, #8]        ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    smlad   r11, r7, r7, r11  ; dual signed multiply, add and accumulate (2)
+
+    usub8   r6, r4, r5          ; calculate difference
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 4th 4 pixels
+    ldr     r4, [r0, #12]       ; load 4 src pixels
+    ldr     r6, [r0, #13]       ; load 4 src pixels with 1 byte offset
+    ldr     r5, [r2, #12]       ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    usub8   r6, r4, r5          ; calculate difference
+    add     r0, r0, r1          ; set src_ptr to next row
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    add     r2, r2, r3          ; set dst_ptr to next row
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    subs    r12, r12, #1
+
+    bne     loop
+
+    ; return stuff
+    ldr     r6, [sp, #40]       ; get address of sse
+    mul     r0, r8, r8          ; sum * sum
+    str     r11, [r6]           ; store sse
+    sub     r0, r11, r0, lsr #8 ; return (sse - ((sum * sum) >> 8))
+
+    ldmfd   sp!, {r4-r12, pc}
+
+    ENDP
+
+c80808080
+    DCD     0x80808080
+
+    END
+
diff --git a/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_hv_armv6.asm b/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_hv_armv6.asm
new file mode 100644
index 000000000..b4e0959d1
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_hv_armv6.asm
@@ -0,0 +1,222 @@
+;
+;  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_variance_halfpixvar16x16_hv_armv6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+; r0    unsigned char *src_ptr
+; r1    int source_stride
+; r2    unsigned char *ref_ptr
+; r3    int  recon_stride
+; stack unsigned int *sse
+|vp8_variance_halfpixvar16x16_hv_armv6| PROC
+
+    stmfd   sp!, {r4-r12, lr}
+
+    pld     [r0, r1, lsl #0]
+    pld     [r2, r3, lsl #0]
+
+    mov     r8, #0              ; initialize sum = 0
+    ldr     r10, c80808080
+    mov     r11, #0             ; initialize sse = 0
+    mov     r12, #16            ; set loop counter to 16 (=block height)
+    mov     lr, #0              ; constant zero
+loop
+    add     r9, r0, r1          ; pointer to pixels on the next row
+    ; 1st 4 pixels
+    ldr     r4, [r0, #0]        ; load source pixels a, row N
+    ldr     r6, [r0, #1]        ; load source pixels b, row N
+    ldr     r5, [r9, #0]        ; load source pixels c, row N+1
+    ldr     r7, [r9, #1]        ; load source pixels d, row N+1
+
+    ; x = (a + b + 1) >> 1, interpolate pixels horizontally on row N
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+    ; y = (c + d + 1) >> 1, interpolate pixels horizontally on row N+1
+    mvn     r7, r7
+    uhsub8  r5, r5, r7
+    eor     r5, r5, r10
+    ; z = (x + y + 1) >> 1, interpolate half pixel values vertically
+    mvn     r5, r5
+    uhsub8  r4, r4, r5
+    ldr     r5, [r2, #0]        ; load 4 ref pixels
+    eor     r4, r4, r10
+
+    usub8   r6, r4, r5          ; calculate difference
+    pld     [r0, r1, lsl #1]
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    pld     [r2, r3, lsl #1]
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+    ; calculate total sum
+    adds    r8, r8, r4          ; add positive differences to sum
+    subs    r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 2nd 4 pixels
+    ldr     r4, [r0, #4]        ; load source pixels a, row N
+    ldr     r6, [r0, #5]        ; load source pixels b, row N
+    ldr     r5, [r9, #4]        ; load source pixels c, row N+1
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    ldr     r7, [r9, #5]        ; load source pixels d, row N+1
+
+    ; x = (a + b + 1) >> 1, interpolate pixels horizontally on row N
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+    ; y = (c + d + 1) >> 1, interpolate pixels horizontally on row N+1
+    mvn     r7, r7
+    uhsub8  r5, r5, r7
+    eor     r5, r5, r10
+    ; z = (x + y + 1) >> 1, interpolate half pixel values vertically
+    mvn     r5, r5
+    uhsub8  r4, r4, r5
+    ldr     r5, [r2, #4]        ; load 4 ref pixels
+    eor     r4, r4, r10
+
+    usub8   r6, r4, r5          ; calculate difference
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 3rd 4 pixels
+    ldr     r4, [r0, #8]        ; load source pixels a, row N
+    ldr     r6, [r0, #9]        ; load source pixels b, row N
+    ldr     r5, [r9, #8]        ; load source pixels c, row N+1
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    ldr     r7, [r9, #9]        ; load source pixels d, row N+1
+
+    ; x = (a + b + 1) >> 1, interpolate pixels horizontally on row N
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+    ; y = (c + d + 1) >> 1, interpolate pixels horizontally on row N+1
+    mvn     r7, r7
+    uhsub8  r5, r5, r7
+    eor     r5, r5, r10
+    ; z = (x + y + 1) >> 1, interpolate half pixel values vertically
+    mvn     r5, r5
+    uhsub8  r4, r4, r5
+    ldr     r5, [r2, #8]        ; load 4 ref pixels
+    eor     r4, r4, r10
+
+    usub8   r6, r4, r5          ; calculate difference
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 4th 4 pixels
+    ldr     r4, [r0, #12]       ; load source pixels a, row N
+    ldr     r6, [r0, #13]       ; load source pixels b, row N
+    ldr     r5, [r9, #12]       ; load source pixels c, row N+1
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+    ldr     r7, [r9, #13]       ; load source pixels d, row N+1
+
+    ; x = (a + b + 1) >> 1, interpolate pixels horizontally on row N
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+    ; y = (c + d + 1) >> 1, interpolate pixels horizontally on row N+1
+    mvn     r7, r7
+    uhsub8  r5, r5, r7
+    eor     r5, r5, r10
+    ; z = (x + y + 1) >> 1, interpolate half pixel values vertically
+    mvn     r5, r5
+    uhsub8  r4, r4, r5
+    ldr     r5, [r2, #12]       ; load 4 ref pixels
+    eor     r4, r4, r10
+
+    usub8   r6, r4, r5          ; calculate difference
+    add     r0, r0, r1          ; set src_ptr to next row
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    add     r2, r2, r3          ; set dst_ptr to next row
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+    subs    r12, r12, #1
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    bne     loop
+
+    ; return stuff
+    ldr     r6, [sp, #40]       ; get address of sse
+    mul     r0, r8, r8          ; sum * sum
+    str     r11, [r6]           ; store sse
+    sub     r0, r11, r0, lsr #8 ; return (sse - ((sum * sum) >> 8))
+
+    ldmfd   sp!, {r4-r12, pc}
+
+    ENDP
+
+c80808080
+    DCD     0x80808080
+
+    END
diff --git a/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_v_armv6.asm b/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_v_armv6.asm
new file mode 100644
index 000000000..10863e2ec
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/armv6/vp8_variance_halfpixvar16x16_v_armv6.asm
@@ -0,0 +1,184 @@
+;
+;  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+    EXPORT  |vp8_variance_halfpixvar16x16_v_armv6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+; r0    unsigned char *src_ptr
+; r1    int source_stride
+; r2    unsigned char *ref_ptr
+; r3    int  recon_stride
+; stack unsigned int *sse
+|vp8_variance_halfpixvar16x16_v_armv6| PROC
+
+    stmfd   sp!, {r4-r12, lr}
+
+    pld     [r0, r1, lsl #0]
+    pld     [r2, r3, lsl #0]
+
+    mov     r8, #0              ; initialize sum = 0
+    ldr     r10, c80808080
+    mov     r11, #0             ; initialize sse = 0
+    mov     r12, #16            ; set loop counter to 16 (=block height)
+    mov     lr, #0              ; constant zero
+loop
+    add     r9, r0, r1          ; set src pointer to next row
+    ; 1st 4 pixels
+    ldr     r4, [r0, #0]        ; load 4 src pixels
+    ldr     r6, [r9, #0]        ; load 4 src pixels from next row
+    ldr     r5, [r2, #0]        ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    usub8   r6, r4, r5          ; calculate difference
+    pld     [r0, r1, lsl #1]
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    pld     [r2, r3, lsl #1]
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+    ; calculate total sum
+    adds    r8, r8, r4          ; add positive differences to sum
+    subs    r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 2nd 4 pixels
+    ldr     r4, [r0, #4]        ; load 4 src pixels
+    ldr     r6, [r9, #4]        ; load 4 src pixels from next row
+    ldr     r5, [r2, #4]        ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    usub8   r6, r4, r5          ; calculate difference
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 3rd 4 pixels
+    ldr     r4, [r0, #8]        ; load 4 src pixels
+    ldr     r6, [r9, #8]        ; load 4 src pixels from next row
+    ldr     r5, [r2, #8]        ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    usub8   r6, r4, r5          ; calculate difference
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+
+    ; 4th 4 pixels
+    ldr     r4, [r0, #12]       ; load 4 src pixels
+    ldr     r6, [r9, #12]       ; load 4 src pixels from next row
+    ldr     r5, [r2, #12]       ; load 4 ref pixels
+
+    ; bilinear interpolation
+    mvn     r6, r6
+    uhsub8  r4, r4, r6
+    eor     r4, r4, r10
+
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+    usub8   r6, r4, r5          ; calculate difference
+    add     r0, r0, r1          ; set src_ptr to next row
+    sel     r7, r6, lr          ; select bytes with positive difference
+    usub8   r6, r5, r4          ; calculate difference with reversed operands
+    add     r2, r2, r3          ; set dst_ptr to next row
+    sel     r6, r6, lr          ; select bytes with negative difference
+
+    ; calculate partial sums
+    usad8   r4, r7, lr          ; calculate sum of positive differences
+    usad8   r5, r6, lr          ; calculate sum of negative differences
+    orr     r6, r6, r7          ; differences of all 4 pixels
+
+    ; calculate total sum
+    add     r8, r8, r4          ; add positive differences to sum
+    sub     r8, r8, r5          ; subtract negative differences from sum
+
+    ; calculate sse
+    uxtb16  r5, r6              ; byte (two pixels) to halfwords
+    uxtb16  r7, r6, ror #8      ; another two pixels to halfwords
+    smlad   r11, r5, r5, r11    ; dual signed multiply, add and accumulate (1)
+    smlad   r11, r7, r7, r11    ; dual signed multiply, add and accumulate (2)
+
+
+    subs    r12, r12, #1
+
+    bne     loop
+
+    ; return stuff
+    ldr     r6, [sp, #40]       ; get address of sse
+    mul     r0, r8, r8          ; sum * sum
+    str     r11, [r6]           ; store sse
+    sub     r0, r11, r0, lsr #8 ; return (sse - ((sum * sum) >> 8))
+
+    ldmfd   sp!, {r4-r12, pc}
+
+    ENDP
+
+c80808080
+    DCD     0x80808080
+
+    END
+
diff --git a/media/libvpx/vp8/common/arm/bilinearfilter_arm.c b/media/libvpx/vp8/common/arm/bilinearfilter_arm.c
new file mode 100644
index 000000000..799c8bd96
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/bilinearfilter_arm.c
@@ -0,0 +1,113 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include <math.h>
+#include "vp8/common/filter.h"
+#include "bilinearfilter_arm.h"
+
+void vp8_filter_block2d_bil_armv6
+(
+    unsigned char *src_ptr,
+    unsigned char *dst_ptr,
+    unsigned int   src_pitch,
+    unsigned int   dst_pitch,
+    const short   *HFilter,
+    const short   *VFilter,
+    int            Width,
+    int            Height
+)
+{
+    unsigned short FData[36*16]; /* Temp data buffer used in filtering */
+
+    /* First filter 1-D horizontally... */
+    vp8_filter_block2d_bil_first_pass_armv6(src_ptr, FData, src_pitch, Height + 1, Width, HFilter);
+
+    /* then 1-D vertically... */
+    vp8_filter_block2d_bil_second_pass_armv6(FData, dst_ptr, dst_pitch, Height, Width, VFilter);
+}
+
+
+void vp8_bilinear_predict4x4_armv6
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 4, 4);
+}
+
+void vp8_bilinear_predict8x8_armv6
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 8);
+}
+
+void vp8_bilinear_predict8x4_armv6
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 4);
+}
+
+void vp8_bilinear_predict16x16_armv6
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 16, 16);
+}
diff --git a/media/libvpx/vp8/common/arm/bilinearfilter_arm.h b/media/libvpx/vp8/common/arm/bilinearfilter_arm.h
new file mode 100644
index 000000000..6b84e6f3b
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/bilinearfilter_arm.h
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ARM_BILINEARFILTER_ARM_H_
+#define VP8_COMMON_ARM_BILINEARFILTER_ARM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_filter_block2d_bil_first_pass_armv6
+(
+    const unsigned char  *src_ptr,
+    unsigned short       *dst_ptr,
+    unsigned int          src_pitch,
+    unsigned int          height,
+    unsigned int          width,
+    const short          *vp8_filter
+);
+
+extern void vp8_filter_block2d_bil_second_pass_armv6
+(
+    const unsigned short *src_ptr,
+    unsigned char        *dst_ptr,
+    int                   dst_pitch,
+    unsigned int          height,
+    unsigned int          width,
+    const short         *vp8_filter
+);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_ARM_BILINEARFILTER_ARM_H_
diff --git a/media/libvpx/vp8/common/arm/dequantize_arm.c b/media/libvpx/vp8/common/arm/dequantize_arm.c
new file mode 100644
index 000000000..1f8157f0b
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/dequantize_arm.c
@@ -0,0 +1,25 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8/common/blockd.h"
+
+#if HAVE_MEDIA
+extern void vp8_dequantize_b_loop_v6(short *Q, short *DQC, short *DQ);
+
+void vp8_dequantize_b_v6(BLOCKD *d, short *DQC)
+{
+    short *DQ  = d->dqcoeff;
+    short *Q   = d->qcoeff;
+
+    vp8_dequantize_b_loop_v6(Q, DQC, DQ);
+}
+#endif
diff --git a/media/libvpx/vp8/common/arm/filter_arm.c b/media/libvpx/vp8/common/arm/filter_arm.c
new file mode 100644
index 000000000..d6a6781d8
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/filter_arm.c
@@ -0,0 +1,221 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include <math.h>
+#include "vp8/common/filter.h"
+#include "vpx_ports/mem.h"
+
+extern void vp8_filter_block2d_first_pass_armv6
+(
+    unsigned char *src_ptr,
+    short         *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int output_width,
+    unsigned int output_height,
+    const short *vp8_filter
+);
+
+// 8x8
+extern void vp8_filter_block2d_first_pass_8x8_armv6
+(
+    unsigned char *src_ptr,
+    short         *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int output_width,
+    unsigned int output_height,
+    const short *vp8_filter
+);
+
+// 16x16
+extern void vp8_filter_block2d_first_pass_16x16_armv6
+(
+    unsigned char *src_ptr,
+    short         *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int output_width,
+    unsigned int output_height,
+    const short *vp8_filter
+);
+
+extern void vp8_filter_block2d_second_pass_armv6
+(
+    short         *src_ptr,
+    unsigned char *output_ptr,
+    unsigned int output_pitch,
+    unsigned int cnt,
+    const short *vp8_filter
+);
+
+extern void vp8_filter4_block2d_second_pass_armv6
+(
+    short         *src_ptr,
+    unsigned char *output_ptr,
+    unsigned int output_pitch,
+    unsigned int cnt,
+    const short *vp8_filter
+);
+
+extern void vp8_filter_block2d_first_pass_only_armv6
+(
+    unsigned char *src_ptr,
+    unsigned char *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int cnt,
+    unsigned int output_pitch,
+    const short *vp8_filter
+);
+
+
+extern void vp8_filter_block2d_second_pass_only_armv6
+(
+    unsigned char *src_ptr,
+    unsigned char *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int cnt,
+    unsigned int output_pitch,
+    const short *vp8_filter
+);
+
+#if HAVE_MEDIA
+void vp8_sixtap_predict4x4_armv6
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+    DECLARE_ALIGNED(4, short, FData[12*4]); /* Temp data buffer used in filtering */
+
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    /* Vfilter is null. First pass only */
+    if (xoffset && !yoffset)
+    {
+        /*vp8_filter_block2d_first_pass_armv6 ( src_ptr, FData+2, src_pixels_per_line, 4, 4, HFilter );
+        vp8_filter_block2d_second_pass_armv6 ( FData+2, dst_ptr, dst_pitch, 4, VFilter );*/
+
+        vp8_filter_block2d_first_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 4, dst_pitch, HFilter);
+    }
+    /* Hfilter is null. Second pass only */
+    else if (!xoffset && yoffset)
+    {
+        vp8_filter_block2d_second_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 4, dst_pitch, VFilter);
+    }
+    else
+    {
+        /* Vfilter is a 4 tap filter */
+        if (yoffset & 0x1)
+        {
+            vp8_filter_block2d_first_pass_armv6(src_ptr - src_pixels_per_line, FData + 1, src_pixels_per_line, 4, 7, HFilter);
+            vp8_filter4_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 4, VFilter);
+        }
+        /* Vfilter is 6 tap filter */
+        else
+        {
+            vp8_filter_block2d_first_pass_armv6(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 4, 9, HFilter);
+            vp8_filter_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 4, VFilter);
+        }
+    }
+}
+
+void vp8_sixtap_predict8x8_armv6
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+    DECLARE_ALIGNED(4, short, FData[16*8]); /* Temp data buffer used in filtering */
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    if (xoffset && !yoffset)
+    {
+        vp8_filter_block2d_first_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 8, dst_pitch, HFilter);
+    }
+    /* Hfilter is null. Second pass only */
+    else if (!xoffset && yoffset)
+    {
+        vp8_filter_block2d_second_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 8, dst_pitch, VFilter);
+    }
+    else
+    {
+        if (yoffset & 0x1)
+        {
+            vp8_filter_block2d_first_pass_8x8_armv6(src_ptr - src_pixels_per_line, FData + 1, src_pixels_per_line, 8, 11, HFilter);
+            vp8_filter4_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 8, VFilter);
+        }
+        else
+        {
+            vp8_filter_block2d_first_pass_8x8_armv6(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 8, 13, HFilter);
+            vp8_filter_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 8, VFilter);
+        }
+    }
+}
+
+
+void vp8_sixtap_predict16x16_armv6
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+    DECLARE_ALIGNED(4, short, FData[24*16]);    /* Temp data buffer used in filtering */
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    if (xoffset && !yoffset)
+    {
+        vp8_filter_block2d_first_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 16, dst_pitch, HFilter);
+    }
+    /* Hfilter is null. Second pass only */
+    else if (!xoffset && yoffset)
+    {
+        vp8_filter_block2d_second_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 16, dst_pitch, VFilter);
+    }
+    else
+    {
+        if (yoffset & 0x1)
+        {
+            vp8_filter_block2d_first_pass_16x16_armv6(src_ptr - src_pixels_per_line, FData + 1, src_pixels_per_line, 16, 19, HFilter);
+            vp8_filter4_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 16, VFilter);
+        }
+        else
+        {
+            vp8_filter_block2d_first_pass_16x16_armv6(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 16, 21, HFilter);
+            vp8_filter_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 16, VFilter);
+        }
+    }
+
+}
+#endif
diff --git a/media/libvpx/vp8/common/arm/loopfilter_arm.c b/media/libvpx/vp8/common/arm/loopfilter_arm.c
new file mode 100644
index 000000000..5840c2bba
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/loopfilter_arm.c
@@ -0,0 +1,181 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vp8/common/loopfilter.h"
+#include "vp8/common/onyxc_int.h"
+
+#define prototype_loopfilter(sym) \
+    void sym(unsigned char *src, int pitch, const unsigned char *blimit,\
+             const unsigned char *limit, const unsigned char *thresh, int count)
+
+#if HAVE_MEDIA
+extern prototype_loopfilter(vp8_loop_filter_horizontal_edge_armv6);
+extern prototype_loopfilter(vp8_loop_filter_vertical_edge_armv6);
+extern prototype_loopfilter(vp8_mbloop_filter_horizontal_edge_armv6);
+extern prototype_loopfilter(vp8_mbloop_filter_vertical_edge_armv6);
+#endif
+
+#if HAVE_NEON
+typedef void loopfilter_y_neon(unsigned char *src, int pitch,
+        unsigned char blimit, unsigned char limit, unsigned char thresh);
+typedef void loopfilter_uv_neon(unsigned char *u, int pitch,
+        unsigned char blimit, unsigned char limit, unsigned char thresh,
+        unsigned char *v);
+
+extern loopfilter_y_neon vp8_loop_filter_horizontal_edge_y_neon;
+extern loopfilter_y_neon vp8_loop_filter_vertical_edge_y_neon;
+extern loopfilter_uv_neon vp8_loop_filter_horizontal_edge_uv_neon;
+extern loopfilter_uv_neon vp8_loop_filter_vertical_edge_uv_neon;
+
+extern loopfilter_y_neon vp8_mbloop_filter_horizontal_edge_y_neon;
+extern loopfilter_y_neon vp8_mbloop_filter_vertical_edge_y_neon;
+extern loopfilter_uv_neon vp8_mbloop_filter_horizontal_edge_uv_neon;
+extern loopfilter_uv_neon vp8_mbloop_filter_vertical_edge_uv_neon;
+#endif
+
+#if HAVE_MEDIA
+/* ARMV6/MEDIA loopfilter functions*/
+/* Horizontal MB filtering */
+void vp8_loop_filter_mbh_armv6(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                               int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_horizontal_edge_armv6(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_mbloop_filter_horizontal_edge_armv6(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_mbloop_filter_horizontal_edge_armv6(v_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+}
+
+/* Vertical MB Filtering */
+void vp8_loop_filter_mbv_armv6(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                               int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_vertical_edge_armv6(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_mbloop_filter_vertical_edge_armv6(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_mbloop_filter_vertical_edge_armv6(v_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+}
+
+/* Horizontal B Filtering */
+void vp8_loop_filter_bh_armv6(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                              int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_loop_filter_horizontal_edge_armv6(y_ptr + 4 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_horizontal_edge_armv6(y_ptr + 8 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_horizontal_edge_armv6(y_ptr + 12 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_loop_filter_horizontal_edge_armv6(u_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_loop_filter_horizontal_edge_armv6(v_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+}
+
+void vp8_loop_filter_bhs_armv6(unsigned char *y_ptr, int y_stride,
+                               const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_horizontal_edge_armv6(y_ptr + 4 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_armv6(y_ptr + 8 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_armv6(y_ptr + 12 * y_stride, y_stride, blimit);
+}
+
+/* Vertical B Filtering */
+void vp8_loop_filter_bv_armv6(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                              int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_loop_filter_vertical_edge_armv6(y_ptr + 4, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_vertical_edge_armv6(y_ptr + 8, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_vertical_edge_armv6(y_ptr + 12, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_loop_filter_vertical_edge_armv6(u_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_loop_filter_vertical_edge_armv6(v_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+}
+
+void vp8_loop_filter_bvs_armv6(unsigned char *y_ptr, int y_stride,
+                               const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_vertical_edge_armv6(y_ptr + 4, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_armv6(y_ptr + 8, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_armv6(y_ptr + 12, y_stride, blimit);
+}
+#endif
+
+#if HAVE_NEON
+/* NEON loopfilter functions */
+/* Horizontal MB filtering */
+void vp8_loop_filter_mbh_neon(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                              int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    unsigned char mblim = *lfi->mblim;
+    unsigned char lim = *lfi->lim;
+    unsigned char hev_thr = *lfi->hev_thr;
+    vp8_mbloop_filter_horizontal_edge_y_neon(y_ptr, y_stride, mblim, lim, hev_thr);
+
+    if (u_ptr)
+        vp8_mbloop_filter_horizontal_edge_uv_neon(u_ptr, uv_stride, mblim, lim, hev_thr, v_ptr);
+}
+
+/* Vertical MB Filtering */
+void vp8_loop_filter_mbv_neon(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                              int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    unsigned char mblim = *lfi->mblim;
+    unsigned char lim = *lfi->lim;
+    unsigned char hev_thr = *lfi->hev_thr;
+
+    vp8_mbloop_filter_vertical_edge_y_neon(y_ptr, y_stride, mblim, lim, hev_thr);
+
+    if (u_ptr)
+        vp8_mbloop_filter_vertical_edge_uv_neon(u_ptr, uv_stride, mblim, lim, hev_thr, v_ptr);
+}
+
+/* Horizontal B Filtering */
+void vp8_loop_filter_bh_neon(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                             int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    unsigned char blim = *lfi->blim;
+    unsigned char lim = *lfi->lim;
+    unsigned char hev_thr = *lfi->hev_thr;
+
+    vp8_loop_filter_horizontal_edge_y_neon(y_ptr + 4 * y_stride, y_stride, blim, lim, hev_thr);
+    vp8_loop_filter_horizontal_edge_y_neon(y_ptr + 8 * y_stride, y_stride, blim, lim, hev_thr);
+    vp8_loop_filter_horizontal_edge_y_neon(y_ptr + 12 * y_stride, y_stride, blim, lim, hev_thr);
+
+    if (u_ptr)
+        vp8_loop_filter_horizontal_edge_uv_neon(u_ptr + 4 * uv_stride, uv_stride, blim, lim, hev_thr, v_ptr + 4 * uv_stride);
+}
+
+/* Vertical B Filtering */
+void vp8_loop_filter_bv_neon(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                             int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    unsigned char blim = *lfi->blim;
+    unsigned char lim = *lfi->lim;
+    unsigned char hev_thr = *lfi->hev_thr;
+
+    vp8_loop_filter_vertical_edge_y_neon(y_ptr + 4, y_stride, blim, lim, hev_thr);
+    vp8_loop_filter_vertical_edge_y_neon(y_ptr + 8, y_stride, blim, lim, hev_thr);
+    vp8_loop_filter_vertical_edge_y_neon(y_ptr + 12, y_stride, blim, lim, hev_thr);
+
+    if (u_ptr)
+        vp8_loop_filter_vertical_edge_uv_neon(u_ptr + 4, uv_stride, blim, lim, hev_thr, v_ptr + 4);
+}
+#endif
diff --git a/media/libvpx/vp8/common/arm/neon/bilinearpredict_neon.c b/media/libvpx/vp8/common/arm/neon/bilinearpredict_neon.c
new file mode 100644
index 000000000..9824a3193
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/bilinearpredict_neon.c
@@ -0,0 +1,699 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+static const uint8_t bifilter4_coeff[8][2] = {
+    {128,   0},
+    {112,  16},
+    { 96,  32},
+    { 80,  48},
+    { 64,  64},
+    { 48,  80},
+    { 32,  96},
+    { 16, 112}
+};
+
+void vp8_bilinear_predict4x4_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8;
+    uint8x8_t d26u8, d27u8, d28u8, d29u8, d30u8;
+    uint8x16_t q1u8, q2u8;
+    uint16x8_t q1u16, q2u16;
+    uint16x8_t q7u16, q8u16, q9u16;
+    uint64x2_t q4u64, q5u64;
+    uint64x1_t d12u64;
+    uint32x2x2_t d0u32x2, d1u32x2, d2u32x2, d3u32x2;
+
+    if (xoffset == 0) {  // skip_1stpass_filter
+        uint32x2_t d28u32 = vdup_n_u32(0);
+        uint32x2_t d29u32 = vdup_n_u32(0);
+        uint32x2_t d30u32 = vdup_n_u32(0);
+
+        d28u32 = vld1_lane_u32((const uint32_t *)src_ptr, d28u32, 0);
+        src_ptr += src_pixels_per_line;
+        d28u32 = vld1_lane_u32((const uint32_t *)src_ptr, d28u32, 1);
+        src_ptr += src_pixels_per_line;
+        d29u32 = vld1_lane_u32((const uint32_t *)src_ptr, d29u32, 0);
+        src_ptr += src_pixels_per_line;
+        d29u32 = vld1_lane_u32((const uint32_t *)src_ptr, d29u32, 1);
+        src_ptr += src_pixels_per_line;
+        d30u32 = vld1_lane_u32((const uint32_t *)src_ptr, d30u32, 0);
+        d28u8 = vreinterpret_u8_u32(d28u32);
+        d29u8 = vreinterpret_u8_u32(d29u32);
+        d30u8 = vreinterpret_u8_u32(d30u32);
+    } else {
+        d2u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d3u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d4u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d5u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d6u8 = vld1_u8(src_ptr);
+
+        q1u8 = vcombine_u8(d2u8, d3u8);
+        q2u8 = vcombine_u8(d4u8, d5u8);
+
+        d0u8 = vdup_n_u8(bifilter4_coeff[xoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[xoffset][1]);
+
+        q4u64  = vshrq_n_u64(vreinterpretq_u64_u8(q1u8), 8);
+        q5u64  = vshrq_n_u64(vreinterpretq_u64_u8(q2u8), 8);
+        d12u64 = vshr_n_u64(vreinterpret_u64_u8(d6u8), 8);
+
+        d0u32x2 = vzip_u32(vreinterpret_u32_u8(vget_low_u8(q1u8)),
+                           vreinterpret_u32_u8(vget_high_u8(q1u8)));
+        d1u32x2 = vzip_u32(vreinterpret_u32_u8(vget_low_u8(q2u8)),
+                           vreinterpret_u32_u8(vget_high_u8(q2u8)));
+        d2u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q4u64)),
+                           vreinterpret_u32_u64(vget_high_u64(q4u64)));
+        d3u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q5u64)),
+                           vreinterpret_u32_u64(vget_high_u64(q5u64)));
+
+        q7u16 = vmull_u8(vreinterpret_u8_u32(d0u32x2.val[0]), d0u8);
+        q8u16 = vmull_u8(vreinterpret_u8_u32(d1u32x2.val[0]), d0u8);
+        q9u16 = vmull_u8(d6u8, d0u8);
+
+        q7u16 = vmlal_u8(q7u16, vreinterpret_u8_u32(d2u32x2.val[0]), d1u8);
+        q8u16 = vmlal_u8(q8u16, vreinterpret_u8_u32(d3u32x2.val[0]), d1u8);
+        q9u16 = vmlal_u8(q9u16, vreinterpret_u8_u64(d12u64), d1u8);
+
+        d28u8 = vqrshrn_n_u16(q7u16, 7);
+        d29u8 = vqrshrn_n_u16(q8u16, 7);
+        d30u8 = vqrshrn_n_u16(q9u16, 7);
+    }
+
+    // secondpass_filter
+    if (yoffset == 0) {  // skip_2ndpass_filter
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d28u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d28u8), 1);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d29u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d29u8), 1);
+    } else {
+        d0u8 = vdup_n_u8(bifilter4_coeff[yoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[yoffset][1]);
+
+        q1u16 = vmull_u8(d28u8, d0u8);
+        q2u16 = vmull_u8(d29u8, d0u8);
+
+        d26u8 = vext_u8(d28u8, d29u8, 4);
+        d27u8 = vext_u8(d29u8, d30u8, 4);
+
+        q1u16 = vmlal_u8(q1u16, d26u8, d1u8);
+        q2u16 = vmlal_u8(q2u16, d27u8, d1u8);
+
+        d2u8 = vqrshrn_n_u16(q1u16, 7);
+        d3u8 = vqrshrn_n_u16(q2u16, 7);
+
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d2u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d2u8), 1);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d3u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d3u8), 1);
+    }
+    return;
+}
+
+void vp8_bilinear_predict8x4_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8;
+    uint8x8_t d7u8, d9u8, d11u8, d22u8, d23u8, d24u8, d25u8, d26u8;
+    uint8x16_t q1u8, q2u8, q3u8, q4u8, q5u8;
+    uint16x8_t q1u16, q2u16, q3u16, q4u16;
+    uint16x8_t q6u16, q7u16, q8u16, q9u16, q10u16;
+
+    if (xoffset == 0) {  // skip_1stpass_filter
+        d22u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d23u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d24u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d25u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d26u8 = vld1_u8(src_ptr);
+    } else {
+        q1u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q2u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q3u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q4u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q5u8 = vld1q_u8(src_ptr);
+
+        d0u8 = vdup_n_u8(bifilter4_coeff[xoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[xoffset][1]);
+
+        q6u16 = vmull_u8(vget_low_u8(q1u8), d0u8);
+        q7u16 = vmull_u8(vget_low_u8(q2u8), d0u8);
+        q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
+        q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
+        q10u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
+
+        d3u8 = vext_u8(vget_low_u8(q1u8), vget_high_u8(q1u8), 1);
+        d5u8 = vext_u8(vget_low_u8(q2u8), vget_high_u8(q2u8), 1);
+        d7u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+        d9u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+        d11u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
+
+        q6u16 = vmlal_u8(q6u16, d3u8, d1u8);
+        q7u16 = vmlal_u8(q7u16, d5u8, d1u8);
+        q8u16 = vmlal_u8(q8u16, d7u8, d1u8);
+        q9u16 = vmlal_u8(q9u16, d9u8, d1u8);
+        q10u16 = vmlal_u8(q10u16, d11u8, d1u8);
+
+        d22u8 = vqrshrn_n_u16(q6u16, 7);
+        d23u8 = vqrshrn_n_u16(q7u16, 7);
+        d24u8 = vqrshrn_n_u16(q8u16, 7);
+        d25u8 = vqrshrn_n_u16(q9u16, 7);
+        d26u8 = vqrshrn_n_u16(q10u16, 7);
+    }
+
+    // secondpass_filter
+    if (yoffset == 0) {  // skip_2ndpass_filter
+        vst1_u8((uint8_t *)dst_ptr, d22u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d23u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d24u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d25u8);
+    } else {
+        d0u8 = vdup_n_u8(bifilter4_coeff[yoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[yoffset][1]);
+
+        q1u16 = vmull_u8(d22u8, d0u8);
+        q2u16 = vmull_u8(d23u8, d0u8);
+        q3u16 = vmull_u8(d24u8, d0u8);
+        q4u16 = vmull_u8(d25u8, d0u8);
+
+        q1u16 = vmlal_u8(q1u16, d23u8, d1u8);
+        q2u16 = vmlal_u8(q2u16, d24u8, d1u8);
+        q3u16 = vmlal_u8(q3u16, d25u8, d1u8);
+        q4u16 = vmlal_u8(q4u16, d26u8, d1u8);
+
+        d2u8 = vqrshrn_n_u16(q1u16, 7);
+        d3u8 = vqrshrn_n_u16(q2u16, 7);
+        d4u8 = vqrshrn_n_u16(q3u16, 7);
+        d5u8 = vqrshrn_n_u16(q4u16, 7);
+
+        vst1_u8((uint8_t *)dst_ptr, d2u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d3u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d4u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d5u8);
+    }
+    return;
+}
+
+void vp8_bilinear_predict8x8_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8, d11u8;
+    uint8x8_t d22u8, d23u8, d24u8, d25u8, d26u8, d27u8, d28u8, d29u8, d30u8;
+    uint8x16_t q1u8, q2u8, q3u8, q4u8, q5u8;
+    uint16x8_t q1u16, q2u16, q3u16, q4u16, q5u16;
+    uint16x8_t q6u16, q7u16, q8u16, q9u16, q10u16;
+
+    if (xoffset == 0) {  // skip_1stpass_filter
+        d22u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d23u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d24u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d25u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d26u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d27u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d28u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d29u8 = vld1_u8(src_ptr); src_ptr += src_pixels_per_line;
+        d30u8 = vld1_u8(src_ptr);
+    } else {
+        q1u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q2u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q3u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q4u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+
+        d0u8 = vdup_n_u8(bifilter4_coeff[xoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[xoffset][1]);
+
+        q6u16 = vmull_u8(vget_low_u8(q1u8), d0u8);
+        q7u16 = vmull_u8(vget_low_u8(q2u8), d0u8);
+        q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
+        q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
+
+        d3u8 = vext_u8(vget_low_u8(q1u8), vget_high_u8(q1u8), 1);
+        d5u8 = vext_u8(vget_low_u8(q2u8), vget_high_u8(q2u8), 1);
+        d7u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+        d9u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+
+        q6u16 = vmlal_u8(q6u16, d3u8, d1u8);
+        q7u16 = vmlal_u8(q7u16, d5u8, d1u8);
+        q8u16 = vmlal_u8(q8u16, d7u8, d1u8);
+        q9u16 = vmlal_u8(q9u16, d9u8, d1u8);
+
+        d22u8 = vqrshrn_n_u16(q6u16, 7);
+        d23u8 = vqrshrn_n_u16(q7u16, 7);
+        d24u8 = vqrshrn_n_u16(q8u16, 7);
+        d25u8 = vqrshrn_n_u16(q9u16, 7);
+
+        // first_pass filtering on the rest 5-line data
+        q1u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q2u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q3u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q4u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+        q5u8 = vld1q_u8(src_ptr);
+
+        q6u16 = vmull_u8(vget_low_u8(q1u8), d0u8);
+        q7u16 = vmull_u8(vget_low_u8(q2u8), d0u8);
+        q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
+        q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
+        q10u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
+
+        d3u8 = vext_u8(vget_low_u8(q1u8), vget_high_u8(q1u8), 1);
+        d5u8 = vext_u8(vget_low_u8(q2u8), vget_high_u8(q2u8), 1);
+        d7u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+        d9u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+        d11u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
+
+        q6u16 = vmlal_u8(q6u16, d3u8, d1u8);
+        q7u16 = vmlal_u8(q7u16, d5u8, d1u8);
+        q8u16 = vmlal_u8(q8u16, d7u8, d1u8);
+        q9u16 = vmlal_u8(q9u16, d9u8, d1u8);
+        q10u16 = vmlal_u8(q10u16, d11u8, d1u8);
+
+        d26u8 = vqrshrn_n_u16(q6u16, 7);
+        d27u8 = vqrshrn_n_u16(q7u16, 7);
+        d28u8 = vqrshrn_n_u16(q8u16, 7);
+        d29u8 = vqrshrn_n_u16(q9u16, 7);
+        d30u8 = vqrshrn_n_u16(q10u16, 7);
+    }
+
+    // secondpass_filter
+    if (yoffset == 0) {  // skip_2ndpass_filter
+        vst1_u8((uint8_t *)dst_ptr, d22u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d23u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d24u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d25u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d26u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d27u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d28u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d29u8);
+    } else {
+        d0u8 = vdup_n_u8(bifilter4_coeff[yoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[yoffset][1]);
+
+        q1u16 = vmull_u8(d22u8, d0u8);
+        q2u16 = vmull_u8(d23u8, d0u8);
+        q3u16 = vmull_u8(d24u8, d0u8);
+        q4u16 = vmull_u8(d25u8, d0u8);
+        q5u16 = vmull_u8(d26u8, d0u8);
+        q6u16 = vmull_u8(d27u8, d0u8);
+        q7u16 = vmull_u8(d28u8, d0u8);
+        q8u16 = vmull_u8(d29u8, d0u8);
+
+        q1u16 = vmlal_u8(q1u16, d23u8, d1u8);
+        q2u16 = vmlal_u8(q2u16, d24u8, d1u8);
+        q3u16 = vmlal_u8(q3u16, d25u8, d1u8);
+        q4u16 = vmlal_u8(q4u16, d26u8, d1u8);
+        q5u16 = vmlal_u8(q5u16, d27u8, d1u8);
+        q6u16 = vmlal_u8(q6u16, d28u8, d1u8);
+        q7u16 = vmlal_u8(q7u16, d29u8, d1u8);
+        q8u16 = vmlal_u8(q8u16, d30u8, d1u8);
+
+        d2u8 = vqrshrn_n_u16(q1u16, 7);
+        d3u8 = vqrshrn_n_u16(q2u16, 7);
+        d4u8 = vqrshrn_n_u16(q3u16, 7);
+        d5u8 = vqrshrn_n_u16(q4u16, 7);
+        d6u8 = vqrshrn_n_u16(q5u16, 7);
+        d7u8 = vqrshrn_n_u16(q6u16, 7);
+        d8u8 = vqrshrn_n_u16(q7u16, 7);
+        d9u8 = vqrshrn_n_u16(q8u16, 7);
+
+        vst1_u8((uint8_t *)dst_ptr, d2u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d3u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d4u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d5u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d6u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d7u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d8u8); dst_ptr += dst_pitch;
+        vst1_u8((uint8_t *)dst_ptr, d9u8);
+    }
+    return;
+}
+
+void vp8_bilinear_predict16x16_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    int i;
+    unsigned char tmp[272];
+    unsigned char *tmpp;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
+    uint8x8_t d10u8, d11u8, d12u8, d13u8, d14u8, d15u8, d16u8, d17u8, d18u8;
+    uint8x8_t d19u8, d20u8, d21u8;
+    uint8x16_t q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8, q10u8;
+    uint8x16_t q11u8, q12u8, q13u8, q14u8, q15u8;
+    uint16x8_t q1u16, q2u16, q3u16, q4u16, q5u16, q6u16, q7u16, q8u16;
+    uint16x8_t q9u16, q10u16, q11u16, q12u16, q13u16, q14u16;
+
+    if (xoffset == 0) {  // secondpass_bfilter16x16_only
+        d0u8 = vdup_n_u8(bifilter4_coeff[yoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[yoffset][1]);
+
+        q11u8 = vld1q_u8(src_ptr);
+        src_ptr += src_pixels_per_line;
+        for (i = 4; i > 0; i--) {
+            q12u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+            q13u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+            q14u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+            q15u8 = vld1q_u8(src_ptr); src_ptr += src_pixels_per_line;
+
+            q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8);
+            q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8);
+            q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8);
+            q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8);
+            q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8);
+            q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8);
+            q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8);
+            q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8);
+
+            q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8);
+            q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8);
+            q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8);
+            q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8);
+            q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8);
+            q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8);
+            q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8);
+            q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8);
+
+            d2u8 = vqrshrn_n_u16(q1u16, 7);
+            d3u8 = vqrshrn_n_u16(q2u16, 7);
+            d4u8 = vqrshrn_n_u16(q3u16, 7);
+            d5u8 = vqrshrn_n_u16(q4u16, 7);
+            d6u8 = vqrshrn_n_u16(q5u16, 7);
+            d7u8 = vqrshrn_n_u16(q6u16, 7);
+            d8u8 = vqrshrn_n_u16(q7u16, 7);
+            d9u8 = vqrshrn_n_u16(q8u16, 7);
+
+            q1u8 = vcombine_u8(d2u8, d3u8);
+            q2u8 = vcombine_u8(d4u8, d5u8);
+            q3u8 = vcombine_u8(d6u8, d7u8);
+            q4u8 = vcombine_u8(d8u8, d9u8);
+
+            q11u8 = q15u8;
+
+            vst1q_u8((uint8_t *)dst_ptr, q1u8); dst_ptr += dst_pitch;
+            vst1q_u8((uint8_t *)dst_ptr, q2u8); dst_ptr += dst_pitch;
+            vst1q_u8((uint8_t *)dst_ptr, q3u8); dst_ptr += dst_pitch;
+            vst1q_u8((uint8_t *)dst_ptr, q4u8); dst_ptr += dst_pitch;
+        }
+        return;
+    }
+
+    if (yoffset == 0) {  // firstpass_bfilter16x16_only
+        d0u8 = vdup_n_u8(bifilter4_coeff[xoffset][0]);
+        d1u8 = vdup_n_u8(bifilter4_coeff[xoffset][1]);
+
+        for (i = 4; i > 0 ; i--) {
+            d2u8 = vld1_u8(src_ptr);
+            d3u8 = vld1_u8(src_ptr + 8);
+            d4u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+            d5u8 = vld1_u8(src_ptr);
+            d6u8 = vld1_u8(src_ptr + 8);
+            d7u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+            d8u8 = vld1_u8(src_ptr);
+            d9u8 = vld1_u8(src_ptr + 8);
+            d10u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+            d11u8 = vld1_u8(src_ptr);
+            d12u8 = vld1_u8(src_ptr + 8);
+            d13u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+
+            q7u16  = vmull_u8(d2u8, d0u8);
+            q8u16  = vmull_u8(d3u8, d0u8);
+            q9u16  = vmull_u8(d5u8, d0u8);
+            q10u16 = vmull_u8(d6u8, d0u8);
+            q11u16 = vmull_u8(d8u8, d0u8);
+            q12u16 = vmull_u8(d9u8, d0u8);
+            q13u16 = vmull_u8(d11u8, d0u8);
+            q14u16 = vmull_u8(d12u8, d0u8);
+
+            d2u8  = vext_u8(d2u8, d3u8, 1);
+            d5u8  = vext_u8(d5u8, d6u8, 1);
+            d8u8  = vext_u8(d8u8, d9u8, 1);
+            d11u8 = vext_u8(d11u8, d12u8, 1);
+
+            q7u16  = vmlal_u8(q7u16, d2u8, d1u8);
+            q9u16  = vmlal_u8(q9u16, d5u8, d1u8);
+            q11u16 = vmlal_u8(q11u16, d8u8, d1u8);
+            q13u16 = vmlal_u8(q13u16, d11u8, d1u8);
+
+            d3u8  = vext_u8(d3u8, d4u8, 1);
+            d6u8  = vext_u8(d6u8, d7u8, 1);
+            d9u8  = vext_u8(d9u8, d10u8, 1);
+            d12u8 = vext_u8(d12u8, d13u8, 1);
+
+            q8u16  = vmlal_u8(q8u16,  d3u8, d1u8);
+            q10u16 = vmlal_u8(q10u16, d6u8, d1u8);
+            q12u16 = vmlal_u8(q12u16, d9u8, d1u8);
+            q14u16 = vmlal_u8(q14u16, d12u8, d1u8);
+
+            d14u8 = vqrshrn_n_u16(q7u16, 7);
+            d15u8 = vqrshrn_n_u16(q8u16, 7);
+            d16u8 = vqrshrn_n_u16(q9u16, 7);
+            d17u8 = vqrshrn_n_u16(q10u16, 7);
+            d18u8 = vqrshrn_n_u16(q11u16, 7);
+            d19u8 = vqrshrn_n_u16(q12u16, 7);
+            d20u8 = vqrshrn_n_u16(q13u16, 7);
+            d21u8 = vqrshrn_n_u16(q14u16, 7);
+
+            q7u8 = vcombine_u8(d14u8, d15u8);
+            q8u8 = vcombine_u8(d16u8, d17u8);
+            q9u8 = vcombine_u8(d18u8, d19u8);
+            q10u8 =vcombine_u8(d20u8, d21u8);
+
+            vst1q_u8((uint8_t *)dst_ptr, q7u8); dst_ptr += dst_pitch;
+            vst1q_u8((uint8_t *)dst_ptr, q8u8); dst_ptr += dst_pitch;
+            vst1q_u8((uint8_t *)dst_ptr, q9u8); dst_ptr += dst_pitch;
+            vst1q_u8((uint8_t *)dst_ptr, q10u8); dst_ptr += dst_pitch;
+        }
+        return;
+    }
+
+    d0u8 = vdup_n_u8(bifilter4_coeff[xoffset][0]);
+    d1u8 = vdup_n_u8(bifilter4_coeff[xoffset][1]);
+
+    d2u8 = vld1_u8(src_ptr);
+    d3u8 = vld1_u8(src_ptr + 8);
+    d4u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+    d5u8 = vld1_u8(src_ptr);
+    d6u8 = vld1_u8(src_ptr + 8);
+    d7u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+    d8u8 = vld1_u8(src_ptr);
+    d9u8 = vld1_u8(src_ptr + 8);
+    d10u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+    d11u8 = vld1_u8(src_ptr);
+    d12u8 = vld1_u8(src_ptr + 8);
+    d13u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+
+    // First Pass: output_height lines x output_width columns (17x16)
+    tmpp = tmp;
+    for (i = 3; i > 0; i--) {
+        q7u16  = vmull_u8(d2u8, d0u8);
+        q8u16  = vmull_u8(d3u8, d0u8);
+        q9u16  = vmull_u8(d5u8, d0u8);
+        q10u16 = vmull_u8(d6u8, d0u8);
+        q11u16 = vmull_u8(d8u8, d0u8);
+        q12u16 = vmull_u8(d9u8, d0u8);
+        q13u16 = vmull_u8(d11u8, d0u8);
+        q14u16 = vmull_u8(d12u8, d0u8);
+
+        d2u8  = vext_u8(d2u8, d3u8, 1);
+        d5u8  = vext_u8(d5u8, d6u8, 1);
+        d8u8  = vext_u8(d8u8, d9u8, 1);
+        d11u8 = vext_u8(d11u8, d12u8, 1);
+
+        q7u16  = vmlal_u8(q7u16, d2u8, d1u8);
+        q9u16  = vmlal_u8(q9u16, d5u8, d1u8);
+        q11u16 = vmlal_u8(q11u16, d8u8, d1u8);
+        q13u16 = vmlal_u8(q13u16, d11u8, d1u8);
+
+        d3u8  = vext_u8(d3u8, d4u8, 1);
+        d6u8  = vext_u8(d6u8, d7u8, 1);
+        d9u8  = vext_u8(d9u8, d10u8, 1);
+        d12u8 = vext_u8(d12u8, d13u8, 1);
+
+        q8u16  = vmlal_u8(q8u16,  d3u8, d1u8);
+        q10u16 = vmlal_u8(q10u16, d6u8, d1u8);
+        q12u16 = vmlal_u8(q12u16, d9u8, d1u8);
+        q14u16 = vmlal_u8(q14u16, d12u8, d1u8);
+
+        d14u8 = vqrshrn_n_u16(q7u16, 7);
+        d15u8 = vqrshrn_n_u16(q8u16, 7);
+        d16u8 = vqrshrn_n_u16(q9u16, 7);
+        d17u8 = vqrshrn_n_u16(q10u16, 7);
+        d18u8 = vqrshrn_n_u16(q11u16, 7);
+        d19u8 = vqrshrn_n_u16(q12u16, 7);
+        d20u8 = vqrshrn_n_u16(q13u16, 7);
+        d21u8 = vqrshrn_n_u16(q14u16, 7);
+
+        d2u8 = vld1_u8(src_ptr);
+        d3u8 = vld1_u8(src_ptr + 8);
+        d4u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+        d5u8 = vld1_u8(src_ptr);
+        d6u8 = vld1_u8(src_ptr + 8);
+        d7u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+        d8u8 = vld1_u8(src_ptr);
+        d9u8 = vld1_u8(src_ptr + 8);
+        d10u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+        d11u8 = vld1_u8(src_ptr);
+        d12u8 = vld1_u8(src_ptr + 8);
+        d13u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+
+        q7u8 = vcombine_u8(d14u8, d15u8);
+        q8u8 = vcombine_u8(d16u8, d17u8);
+        q9u8 = vcombine_u8(d18u8, d19u8);
+        q10u8 = vcombine_u8(d20u8, d21u8);
+
+        vst1q_u8((uint8_t *)tmpp, q7u8); tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q8u8); tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q9u8); tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q10u8); tmpp += 16;
+    }
+
+    // First-pass filtering for rest 5 lines
+    d14u8 = vld1_u8(src_ptr);
+    d15u8 = vld1_u8(src_ptr + 8);
+    d16u8 = vld1_u8(src_ptr + 16); src_ptr += src_pixels_per_line;
+
+    q9u16  = vmull_u8(d2u8, d0u8);
+    q10u16 = vmull_u8(d3u8, d0u8);
+    q11u16 = vmull_u8(d5u8, d0u8);
+    q12u16 = vmull_u8(d6u8, d0u8);
+    q13u16 = vmull_u8(d8u8, d0u8);
+    q14u16 = vmull_u8(d9u8, d0u8);
+
+    d2u8  = vext_u8(d2u8, d3u8, 1);
+    d5u8  = vext_u8(d5u8, d6u8, 1);
+    d8u8  = vext_u8(d8u8, d9u8, 1);
+
+    q9u16  = vmlal_u8(q9u16, d2u8, d1u8);
+    q11u16 = vmlal_u8(q11u16, d5u8, d1u8);
+    q13u16 = vmlal_u8(q13u16, d8u8, d1u8);
+
+    d3u8  = vext_u8(d3u8, d4u8, 1);
+    d6u8  = vext_u8(d6u8, d7u8, 1);
+    d9u8  = vext_u8(d9u8, d10u8, 1);
+
+    q10u16 = vmlal_u8(q10u16, d3u8, d1u8);
+    q12u16 = vmlal_u8(q12u16, d6u8, d1u8);
+    q14u16 = vmlal_u8(q14u16, d9u8, d1u8);
+
+    q1u16 = vmull_u8(d11u8, d0u8);
+    q2u16 = vmull_u8(d12u8, d0u8);
+    q3u16 = vmull_u8(d14u8, d0u8);
+    q4u16 = vmull_u8(d15u8, d0u8);
+
+    d11u8 = vext_u8(d11u8, d12u8, 1);
+    d14u8 = vext_u8(d14u8, d15u8, 1);
+
+    q1u16 = vmlal_u8(q1u16, d11u8, d1u8);
+    q3u16 = vmlal_u8(q3u16, d14u8, d1u8);
+
+    d12u8 = vext_u8(d12u8, d13u8, 1);
+    d15u8 = vext_u8(d15u8, d16u8, 1);
+
+    q2u16 = vmlal_u8(q2u16, d12u8, d1u8);
+    q4u16 = vmlal_u8(q4u16, d15u8, d1u8);
+
+    d10u8 = vqrshrn_n_u16(q9u16, 7);
+    d11u8 = vqrshrn_n_u16(q10u16, 7);
+    d12u8 = vqrshrn_n_u16(q11u16, 7);
+    d13u8 = vqrshrn_n_u16(q12u16, 7);
+    d14u8 = vqrshrn_n_u16(q13u16, 7);
+    d15u8 = vqrshrn_n_u16(q14u16, 7);
+    d16u8 = vqrshrn_n_u16(q1u16, 7);
+    d17u8 = vqrshrn_n_u16(q2u16, 7);
+    d18u8 = vqrshrn_n_u16(q3u16, 7);
+    d19u8 = vqrshrn_n_u16(q4u16, 7);
+
+    q5u8 = vcombine_u8(d10u8, d11u8);
+    q6u8 = vcombine_u8(d12u8, d13u8);
+    q7u8 = vcombine_u8(d14u8, d15u8);
+    q8u8 = vcombine_u8(d16u8, d17u8);
+    q9u8 = vcombine_u8(d18u8, d19u8);
+
+    vst1q_u8((uint8_t *)tmpp, q5u8); tmpp += 16;
+    vst1q_u8((uint8_t *)tmpp, q6u8); tmpp += 16;
+    vst1q_u8((uint8_t *)tmpp, q7u8); tmpp += 16;
+    vst1q_u8((uint8_t *)tmpp, q8u8); tmpp += 16;
+    vst1q_u8((uint8_t *)tmpp, q9u8);
+
+    // secondpass_filter
+    d0u8 = vdup_n_u8(bifilter4_coeff[yoffset][0]);
+    d1u8 = vdup_n_u8(bifilter4_coeff[yoffset][1]);
+
+    tmpp = tmp;
+    q11u8 = vld1q_u8(tmpp);
+    tmpp += 16;
+    for (i = 4; i > 0; i--) {
+        q12u8 = vld1q_u8(tmpp); tmpp += 16;
+        q13u8 = vld1q_u8(tmpp); tmpp += 16;
+        q14u8 = vld1q_u8(tmpp); tmpp += 16;
+        q15u8 = vld1q_u8(tmpp); tmpp += 16;
+
+        q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8);
+        q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8);
+        q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8);
+        q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8);
+        q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8);
+        q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8);
+        q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8);
+        q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8);
+
+        q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8);
+        q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8);
+        q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8);
+        q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8);
+        q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8);
+        q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8);
+        q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8);
+        q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8);
+
+        d2u8 = vqrshrn_n_u16(q1u16, 7);
+        d3u8 = vqrshrn_n_u16(q2u16, 7);
+        d4u8 = vqrshrn_n_u16(q3u16, 7);
+        d5u8 = vqrshrn_n_u16(q4u16, 7);
+        d6u8 = vqrshrn_n_u16(q5u16, 7);
+        d7u8 = vqrshrn_n_u16(q6u16, 7);
+        d8u8 = vqrshrn_n_u16(q7u16, 7);
+        d9u8 = vqrshrn_n_u16(q8u16, 7);
+
+        q1u8 = vcombine_u8(d2u8, d3u8);
+        q2u8 = vcombine_u8(d4u8, d5u8);
+        q3u8 = vcombine_u8(d6u8, d7u8);
+        q4u8 = vcombine_u8(d8u8, d9u8);
+
+        q11u8 = q15u8;
+
+        vst1q_u8((uint8_t *)dst_ptr, q1u8); dst_ptr += dst_pitch;
+        vst1q_u8((uint8_t *)dst_ptr, q2u8); dst_ptr += dst_pitch;
+        vst1q_u8((uint8_t *)dst_ptr, q3u8); dst_ptr += dst_pitch;
+        vst1q_u8((uint8_t *)dst_ptr, q4u8); dst_ptr += dst_pitch;
+    }
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/copymem_neon.c b/media/libvpx/vp8/common/arm/neon/copymem_neon.c
new file mode 100644
index 000000000..deced115c
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/copymem_neon.c
@@ -0,0 +1,59 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+void vp8_copy_mem8x4_neon(
+        unsigned char *src,
+        int src_stride,
+        unsigned char *dst,
+        int dst_stride) {
+    uint8x8_t vtmp;
+    int r;
+
+    for (r = 0; r < 4; r++) {
+        vtmp = vld1_u8(src);
+        vst1_u8(dst, vtmp);
+        src += src_stride;
+        dst += dst_stride;
+    }
+}
+
+void vp8_copy_mem8x8_neon(
+        unsigned char *src,
+        int src_stride,
+        unsigned char *dst,
+        int dst_stride) {
+    uint8x8_t vtmp;
+    int r;
+
+    for (r = 0; r < 8; r++) {
+        vtmp = vld1_u8(src);
+        vst1_u8(dst, vtmp);
+        src += src_stride;
+        dst += dst_stride;
+    }
+}
+
+void vp8_copy_mem16x16_neon(
+        unsigned char *src,
+        int src_stride,
+        unsigned char *dst,
+        int dst_stride) {
+    int r;
+    uint8x16_t qtmp;
+
+    for (r = 0; r < 16; r++) {
+        qtmp = vld1q_u8(src);
+        vst1q_u8(dst, qtmp);
+        src += src_stride;
+        dst += dst_stride;
+    }
+}
diff --git a/media/libvpx/vp8/common/arm/neon/dc_only_idct_add_neon.c b/media/libvpx/vp8/common/arm/neon/dc_only_idct_add_neon.c
new file mode 100644
index 000000000..ad5f41d7d
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/dc_only_idct_add_neon.c
@@ -0,0 +1,42 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+void vp8_dc_only_idct_add_neon(
+        int16_t input_dc,
+        unsigned char *pred_ptr,
+        int pred_stride,
+        unsigned char *dst_ptr,
+        int dst_stride) {
+    int i;
+    uint16_t a1 = ((input_dc + 4) >> 3);
+    uint32x2_t d2u32 = vdup_n_u32(0);
+    uint8x8_t d2u8;
+    uint16x8_t q1u16;
+    uint16x8_t qAdd;
+
+    qAdd = vdupq_n_u16(a1);
+
+    for (i = 0; i < 2; i++) {
+        d2u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d2u32, 0);
+        pred_ptr += pred_stride;
+        d2u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d2u32, 1);
+        pred_ptr += pred_stride;
+
+        q1u16 = vaddw_u8(qAdd, vreinterpret_u8_u32(d2u32));
+        d2u8 = vqmovun_s16(vreinterpretq_s16_u16(q1u16));
+
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d2u8), 0);
+        dst_ptr += dst_stride;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d2u8), 1);
+        dst_ptr += dst_stride;
+    }
+}
diff --git a/media/libvpx/vp8/common/arm/neon/dequant_idct_neon.c b/media/libvpx/vp8/common/arm/neon/dequant_idct_neon.c
new file mode 100644
index 000000000..58e11922c
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/dequant_idct_neon.c
@@ -0,0 +1,142 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+static const int16_t cospi8sqrt2minus1 = 20091;
+static const int16_t sinpi8sqrt2       = 35468;
+
+void vp8_dequant_idct_add_neon(
+        int16_t *input,
+        int16_t *dq,
+        unsigned char *dst,
+        int stride) {
+    unsigned char *dst0;
+    int32x2_t d14, d15;
+    int16x4_t d2, d3, d4, d5, d10, d11, d12, d13;
+    int16x8_t q1, q2, q3, q4, q5, q6;
+    int16x8_t qEmpty = vdupq_n_s16(0);
+    int32x2x2_t d2tmp0, d2tmp1;
+    int16x4x2_t d2tmp2, d2tmp3;
+
+    d14 = d15 = vdup_n_s32(0);
+
+    // load input
+    q3 = vld1q_s16(input);
+    vst1q_s16(input, qEmpty);
+    input += 8;
+    q4 = vld1q_s16(input);
+    vst1q_s16(input, qEmpty);
+
+    // load dq
+    q5 = vld1q_s16(dq);
+    dq += 8;
+    q6 = vld1q_s16(dq);
+
+    // load src from dst
+    dst0 = dst;
+    d14 = vld1_lane_s32((const int32_t *)dst0, d14, 0);
+    dst0 += stride;
+    d14 = vld1_lane_s32((const int32_t *)dst0, d14, 1);
+    dst0 += stride;
+    d15 = vld1_lane_s32((const int32_t *)dst0, d15, 0);
+    dst0 += stride;
+    d15 = vld1_lane_s32((const int32_t *)dst0, d15, 1);
+
+    q1 = vreinterpretq_s16_u16(vmulq_u16(vreinterpretq_u16_s16(q3),
+                                         vreinterpretq_u16_s16(q5)));
+    q2 = vreinterpretq_s16_u16(vmulq_u16(vreinterpretq_u16_s16(q4),
+                                         vreinterpretq_u16_s16(q6)));
+
+    d12 = vqadd_s16(vget_low_s16(q1), vget_low_s16(q2));
+    d13 = vqsub_s16(vget_low_s16(q1), vget_low_s16(q2));
+
+    q2 = vcombine_s16(vget_high_s16(q1), vget_high_s16(q2));
+
+    q3 = vqdmulhq_n_s16(q2, sinpi8sqrt2);
+    q4 = vqdmulhq_n_s16(q2, cospi8sqrt2minus1);
+
+    q3 = vshrq_n_s16(q3, 1);
+    q4 = vshrq_n_s16(q4, 1);
+
+    q3 = vqaddq_s16(q3, q2);
+    q4 = vqaddq_s16(q4, q2);
+
+    d10 = vqsub_s16(vget_low_s16(q3), vget_high_s16(q4));
+    d11 = vqadd_s16(vget_high_s16(q3), vget_low_s16(q4));
+
+    d2 = vqadd_s16(d12, d11);
+    d3 = vqadd_s16(d13, d10);
+    d4 = vqsub_s16(d13, d10);
+    d5 = vqsub_s16(d12, d11);
+
+    d2tmp0 = vtrn_s32(vreinterpret_s32_s16(d2), vreinterpret_s32_s16(d4));
+    d2tmp1 = vtrn_s32(vreinterpret_s32_s16(d3), vreinterpret_s32_s16(d5));
+    d2tmp2 = vtrn_s16(vreinterpret_s16_s32(d2tmp0.val[0]),
+                      vreinterpret_s16_s32(d2tmp1.val[0]));
+    d2tmp3 = vtrn_s16(vreinterpret_s16_s32(d2tmp0.val[1]),
+                      vreinterpret_s16_s32(d2tmp1.val[1]));
+
+    // loop 2
+    q2 = vcombine_s16(d2tmp2.val[1], d2tmp3.val[1]);
+
+    q3 = vqdmulhq_n_s16(q2, sinpi8sqrt2);
+    q4 = vqdmulhq_n_s16(q2, cospi8sqrt2minus1);
+
+    d12 = vqadd_s16(d2tmp2.val[0], d2tmp3.val[0]);
+    d13 = vqsub_s16(d2tmp2.val[0], d2tmp3.val[0]);
+
+    q3 = vshrq_n_s16(q3, 1);
+    q4 = vshrq_n_s16(q4, 1);
+
+    q3 = vqaddq_s16(q3, q2);
+    q4 = vqaddq_s16(q4, q2);
+
+    d10 = vqsub_s16(vget_low_s16(q3), vget_high_s16(q4));
+    d11 = vqadd_s16(vget_high_s16(q3), vget_low_s16(q4));
+
+    d2 = vqadd_s16(d12, d11);
+    d3 = vqadd_s16(d13, d10);
+    d4 = vqsub_s16(d13, d10);
+    d5 = vqsub_s16(d12, d11);
+
+    d2 = vrshr_n_s16(d2, 3);
+    d3 = vrshr_n_s16(d3, 3);
+    d4 = vrshr_n_s16(d4, 3);
+    d5 = vrshr_n_s16(d5, 3);
+
+    d2tmp0 = vtrn_s32(vreinterpret_s32_s16(d2), vreinterpret_s32_s16(d4));
+    d2tmp1 = vtrn_s32(vreinterpret_s32_s16(d3), vreinterpret_s32_s16(d5));
+    d2tmp2 = vtrn_s16(vreinterpret_s16_s32(d2tmp0.val[0]),
+                      vreinterpret_s16_s32(d2tmp1.val[0]));
+    d2tmp3 = vtrn_s16(vreinterpret_s16_s32(d2tmp0.val[1]),
+                      vreinterpret_s16_s32(d2tmp1.val[1]));
+
+    q1 = vcombine_s16(d2tmp2.val[0], d2tmp2.val[1]);
+    q2 = vcombine_s16(d2tmp3.val[0], d2tmp3.val[1]);
+
+    q1 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q1),
+                                        vreinterpret_u8_s32(d14)));
+    q2 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2),
+                                        vreinterpret_u8_s32(d15)));
+
+    d14 = vreinterpret_s32_u8(vqmovun_s16(q1));
+    d15 = vreinterpret_s32_u8(vqmovun_s16(q2));
+
+    dst0 = dst;
+    vst1_lane_s32((int32_t *)dst0, d14, 0);
+    dst0 += stride;
+    vst1_lane_s32((int32_t *)dst0, d14, 1);
+    dst0 += stride;
+    vst1_lane_s32((int32_t *)dst0, d15, 0);
+    dst0 += stride;
+    vst1_lane_s32((int32_t *)dst0, d15, 1);
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/dequantizeb_neon.c b/media/libvpx/vp8/common/arm/neon/dequantizeb_neon.c
new file mode 100644
index 000000000..54e709dd3
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/dequantizeb_neon.c
@@ -0,0 +1,25 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+#include "vp8/common/blockd.h"
+
+void vp8_dequantize_b_neon(BLOCKD *d, short *DQC) {
+    int16x8x2_t qQ, qDQC, qDQ;
+
+    qQ   = vld2q_s16(d->qcoeff);
+    qDQC = vld2q_s16(DQC);
+
+    qDQ.val[0] = vmulq_s16(qQ.val[0], qDQC.val[0]);
+    qDQ.val[1] = vmulq_s16(qQ.val[1], qDQC.val[1]);
+
+    vst2q_s16(d->dqcoeff, qDQ);
+}
diff --git a/media/libvpx/vp8/common/arm/neon/idct_blk_neon.c b/media/libvpx/vp8/common/arm/neon/idct_blk_neon.c
new file mode 100644
index 000000000..fb327a726
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/idct_blk_neon.c
@@ -0,0 +1,96 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+
+/* place these declarations here because we don't want to maintain them
+ * outside of this scope
+ */
+void idct_dequant_full_2x_neon(short *q, short *dq,
+                               unsigned char *dst, int stride);
+void idct_dequant_0_2x_neon(short *q, short dq,
+                            unsigned char *dst, int stride);
+
+
+void vp8_dequant_idct_add_y_block_neon(short *q, short *dq,
+                                       unsigned char *dst,
+                                       int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+    {
+        if (((short *)(eobs))[0])
+        {
+            if (((short *)eobs)[0] & 0xfefe)
+                idct_dequant_full_2x_neon (q, dq, dst, stride);
+            else
+                idct_dequant_0_2x_neon (q, dq[0], dst, stride);
+        }
+
+        if (((short *)(eobs))[1])
+        {
+            if (((short *)eobs)[1] & 0xfefe)
+                idct_dequant_full_2x_neon (q+32, dq, dst+8, stride);
+            else
+                idct_dequant_0_2x_neon (q+32, dq[0], dst+8, stride);
+        }
+        q    += 64;
+        dst  += 4*stride;
+        eobs += 4;
+    }
+}
+
+void vp8_dequant_idct_add_uv_block_neon(short *q, short *dq,
+                                        unsigned char *dstu,
+                                        unsigned char *dstv,
+                                        int stride, char *eobs)
+{
+    if (((short *)(eobs))[0])
+    {
+        if (((short *)eobs)[0] & 0xfefe)
+            idct_dequant_full_2x_neon (q, dq, dstu, stride);
+        else
+            idct_dequant_0_2x_neon (q, dq[0], dstu, stride);
+    }
+
+    q    += 32;
+    dstu += 4*stride;
+
+    if (((short *)(eobs))[1])
+    {
+        if (((short *)eobs)[1] & 0xfefe)
+            idct_dequant_full_2x_neon (q, dq, dstu, stride);
+        else
+            idct_dequant_0_2x_neon (q, dq[0], dstu, stride);
+    }
+
+    q += 32;
+
+    if (((short *)(eobs))[2])
+    {
+        if (((short *)eobs)[2] & 0xfefe)
+            idct_dequant_full_2x_neon (q, dq, dstv, stride);
+        else
+            idct_dequant_0_2x_neon (q, dq[0], dstv, stride);
+    }
+
+    q    += 32;
+    dstv += 4*stride;
+
+    if (((short *)(eobs))[3])
+    {
+        if (((short *)eobs)[3] & 0xfefe)
+            idct_dequant_full_2x_neon (q, dq, dstv, stride);
+        else
+            idct_dequant_0_2x_neon (q, dq[0], dstv, stride);
+    }
+}
diff --git a/media/libvpx/vp8/common/arm/neon/idct_dequant_0_2x_neon.c b/media/libvpx/vp8/common/arm/neon/idct_dequant_0_2x_neon.c
new file mode 100644
index 000000000..967c32280
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/idct_dequant_0_2x_neon.c
@@ -0,0 +1,62 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+void idct_dequant_0_2x_neon(
+        int16_t *q,
+        int16_t dq,
+        unsigned char *dst,
+        int stride) {
+    unsigned char *dst0;
+    int i, a0, a1;
+    int16x8x2_t q2Add;
+    int32x2_t d2s32, d4s32;
+    uint8x8_t d2u8, d4u8;
+    uint16x8_t q1u16, q2u16;
+
+    a0 = ((q[0] * dq) + 4) >> 3;
+    a1 = ((q[16] * dq) + 4) >> 3;
+    q[0] = q[16] = 0;
+    q2Add.val[0] = vdupq_n_s16((int16_t)a0);
+    q2Add.val[1] = vdupq_n_s16((int16_t)a1);
+
+    for (i = 0; i < 2; i++, dst += 4) {
+        dst0 = dst;
+        d2s32 = vld1_lane_s32((const int32_t *)dst0, d2s32, 0);
+        dst0 += stride;
+        d2s32 = vld1_lane_s32((const int32_t *)dst0, d2s32, 1);
+        dst0 += stride;
+        d4s32 = vld1_lane_s32((const int32_t *)dst0, d4s32, 0);
+        dst0 += stride;
+        d4s32 = vld1_lane_s32((const int32_t *)dst0, d4s32, 1);
+
+        q1u16 = vaddw_u8(vreinterpretq_u16_s16(q2Add.val[i]),
+                         vreinterpret_u8_s32(d2s32));
+        q2u16 = vaddw_u8(vreinterpretq_u16_s16(q2Add.val[i]),
+                         vreinterpret_u8_s32(d4s32));
+
+        d2u8 = vqmovun_s16(vreinterpretq_s16_u16(q1u16));
+        d4u8 = vqmovun_s16(vreinterpretq_s16_u16(q2u16));
+
+        d2s32 = vreinterpret_s32_u8(d2u8);
+        d4s32 = vreinterpret_s32_u8(d4u8);
+
+        dst0 = dst;
+        vst1_lane_s32((int32_t *)dst0, d2s32, 0);
+        dst0 += stride;
+        vst1_lane_s32((int32_t *)dst0, d2s32, 1);
+        dst0 += stride;
+        vst1_lane_s32((int32_t *)dst0, d4s32, 0);
+        dst0 += stride;
+        vst1_lane_s32((int32_t *)dst0, d4s32, 1);
+    }
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c b/media/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c
new file mode 100644
index 000000000..a60ed46b7
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/idct_dequant_full_2x_neon.c
@@ -0,0 +1,185 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+static const int16_t cospi8sqrt2minus1 = 20091;
+static const int16_t sinpi8sqrt2       = 17734;
+// because the lowest bit in 0x8a8c is 0, we can pre-shift this
+
+void idct_dequant_full_2x_neon(
+        int16_t *q,
+        int16_t *dq,
+        unsigned char *dst,
+        int stride) {
+    unsigned char *dst0, *dst1;
+    int32x2_t d28, d29, d30, d31;
+    int16x8_t q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+    int16x8_t qEmpty = vdupq_n_s16(0);
+    int32x4x2_t q2tmp0, q2tmp1;
+    int16x8x2_t q2tmp2, q2tmp3;
+    int16x4_t dLow0, dLow1, dHigh0, dHigh1;
+
+    d28 = d29 = d30 = d31 = vdup_n_s32(0);
+
+    // load dq
+    q0 = vld1q_s16(dq);
+    dq += 8;
+    q1 = vld1q_s16(dq);
+
+    // load q
+    q2 = vld1q_s16(q);
+    vst1q_s16(q, qEmpty);
+    q += 8;
+    q3 = vld1q_s16(q);
+    vst1q_s16(q, qEmpty);
+    q += 8;
+    q4 = vld1q_s16(q);
+    vst1q_s16(q, qEmpty);
+    q += 8;
+    q5 = vld1q_s16(q);
+    vst1q_s16(q, qEmpty);
+
+    // load src from dst
+    dst0 = dst;
+    dst1 = dst + 4;
+    d28 = vld1_lane_s32((const int32_t *)dst0, d28, 0);
+    dst0 += stride;
+    d28 = vld1_lane_s32((const int32_t *)dst1, d28, 1);
+    dst1 += stride;
+    d29 = vld1_lane_s32((const int32_t *)dst0, d29, 0);
+    dst0 += stride;
+    d29 = vld1_lane_s32((const int32_t *)dst1, d29, 1);
+    dst1 += stride;
+
+    d30 = vld1_lane_s32((const int32_t *)dst0, d30, 0);
+    dst0 += stride;
+    d30 = vld1_lane_s32((const int32_t *)dst1, d30, 1);
+    dst1 += stride;
+    d31 = vld1_lane_s32((const int32_t *)dst0, d31, 0);
+    d31 = vld1_lane_s32((const int32_t *)dst1, d31, 1);
+
+    q2 = vmulq_s16(q2, q0);
+    q3 = vmulq_s16(q3, q1);
+    q4 = vmulq_s16(q4, q0);
+    q5 = vmulq_s16(q5, q1);
+
+    // vswp
+    dLow0 = vget_low_s16(q2);
+    dHigh0 = vget_high_s16(q2);
+    dLow1 = vget_low_s16(q4);
+    dHigh1 = vget_high_s16(q4);
+    q2 = vcombine_s16(dLow0, dLow1);
+    q4 = vcombine_s16(dHigh0, dHigh1);
+
+    dLow0 = vget_low_s16(q3);
+    dHigh0 = vget_high_s16(q3);
+    dLow1 = vget_low_s16(q5);
+    dHigh1 = vget_high_s16(q5);
+    q3 = vcombine_s16(dLow0, dLow1);
+    q5 = vcombine_s16(dHigh0, dHigh1);
+
+    q6 = vqdmulhq_n_s16(q4, sinpi8sqrt2);
+    q7 = vqdmulhq_n_s16(q5, sinpi8sqrt2);
+    q8 = vqdmulhq_n_s16(q4, cospi8sqrt2minus1);
+    q9 = vqdmulhq_n_s16(q5, cospi8sqrt2minus1);
+
+    q10 = vqaddq_s16(q2, q3);
+    q11 = vqsubq_s16(q2, q3);
+
+    q8 = vshrq_n_s16(q8, 1);
+    q9 = vshrq_n_s16(q9, 1);
+
+    q4 = vqaddq_s16(q4, q8);
+    q5 = vqaddq_s16(q5, q9);
+
+    q2 = vqsubq_s16(q6, q5);
+    q3 = vqaddq_s16(q7, q4);
+
+    q4 = vqaddq_s16(q10, q3);
+    q5 = vqaddq_s16(q11, q2);
+    q6 = vqsubq_s16(q11, q2);
+    q7 = vqsubq_s16(q10, q3);
+
+    q2tmp0 = vtrnq_s32(vreinterpretq_s32_s16(q4), vreinterpretq_s32_s16(q6));
+    q2tmp1 = vtrnq_s32(vreinterpretq_s32_s16(q5), vreinterpretq_s32_s16(q7));
+    q2tmp2 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[0]),
+                       vreinterpretq_s16_s32(q2tmp1.val[0]));
+    q2tmp3 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[1]),
+                       vreinterpretq_s16_s32(q2tmp1.val[1]));
+
+    // loop 2
+    q8  = vqdmulhq_n_s16(q2tmp2.val[1], sinpi8sqrt2);
+    q9  = vqdmulhq_n_s16(q2tmp3.val[1], sinpi8sqrt2);
+    q10 = vqdmulhq_n_s16(q2tmp2.val[1], cospi8sqrt2minus1);
+    q11 = vqdmulhq_n_s16(q2tmp3.val[1], cospi8sqrt2minus1);
+
+    q2 = vqaddq_s16(q2tmp2.val[0], q2tmp3.val[0]);
+    q3 = vqsubq_s16(q2tmp2.val[0], q2tmp3.val[0]);
+
+    q10 = vshrq_n_s16(q10, 1);
+    q11 = vshrq_n_s16(q11, 1);
+
+    q10 = vqaddq_s16(q2tmp2.val[1], q10);
+    q11 = vqaddq_s16(q2tmp3.val[1], q11);
+
+    q8 = vqsubq_s16(q8, q11);
+    q9 = vqaddq_s16(q9, q10);
+
+    q4 = vqaddq_s16(q2, q9);
+    q5 = vqaddq_s16(q3, q8);
+    q6 = vqsubq_s16(q3, q8);
+    q7 = vqsubq_s16(q2, q9);
+
+    q4 = vrshrq_n_s16(q4, 3);
+    q5 = vrshrq_n_s16(q5, 3);
+    q6 = vrshrq_n_s16(q6, 3);
+    q7 = vrshrq_n_s16(q7, 3);
+
+    q2tmp0 = vtrnq_s32(vreinterpretq_s32_s16(q4), vreinterpretq_s32_s16(q6));
+    q2tmp1 = vtrnq_s32(vreinterpretq_s32_s16(q5), vreinterpretq_s32_s16(q7));
+    q2tmp2 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[0]),
+                       vreinterpretq_s16_s32(q2tmp1.val[0]));
+    q2tmp3 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[1]),
+                       vreinterpretq_s16_s32(q2tmp1.val[1]));
+
+    q4 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp2.val[0]),
+                                          vreinterpret_u8_s32(d28)));
+    q5 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp2.val[1]),
+                                          vreinterpret_u8_s32(d29)));
+    q6 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp3.val[0]),
+                                          vreinterpret_u8_s32(d30)));
+    q7 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp3.val[1]),
+                                          vreinterpret_u8_s32(d31)));
+
+    d28 = vreinterpret_s32_u8(vqmovun_s16(q4));
+    d29 = vreinterpret_s32_u8(vqmovun_s16(q5));
+    d30 = vreinterpret_s32_u8(vqmovun_s16(q6));
+    d31 = vreinterpret_s32_u8(vqmovun_s16(q7));
+
+    dst0 = dst;
+    dst1 = dst + 4;
+    vst1_lane_s32((int32_t *)dst0, d28, 0);
+    dst0 += stride;
+    vst1_lane_s32((int32_t *)dst1, d28, 1);
+    dst1 += stride;
+    vst1_lane_s32((int32_t *)dst0, d29, 0);
+    dst0 += stride;
+    vst1_lane_s32((int32_t *)dst1, d29, 1);
+    dst1 += stride;
+
+    vst1_lane_s32((int32_t *)dst0, d30, 0);
+    dst0 += stride;
+    vst1_lane_s32((int32_t *)dst1, d30, 1);
+    dst1 += stride;
+    vst1_lane_s32((int32_t *)dst0, d31, 0);
+    vst1_lane_s32((int32_t *)dst1, d31, 1);
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/iwalsh_neon.c b/media/libvpx/vp8/common/arm/neon/iwalsh_neon.c
new file mode 100644
index 000000000..6ea9dd712
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/iwalsh_neon.c
@@ -0,0 +1,102 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+void vp8_short_inv_walsh4x4_neon(
+        int16_t *input,
+        int16_t *mb_dqcoeff) {
+    int16x8_t q0s16, q1s16, q2s16, q3s16;
+    int16x4_t d4s16, d5s16, d6s16, d7s16;
+    int16x4x2_t v2tmp0, v2tmp1;
+    int32x2x2_t v2tmp2, v2tmp3;
+    int16x8_t qAdd3;
+
+    q0s16 = vld1q_s16(input);
+    q1s16 = vld1q_s16(input + 8);
+
+    // 1st for loop
+    d4s16 = vadd_s16(vget_low_s16(q0s16), vget_high_s16(q1s16));
+    d6s16 = vadd_s16(vget_high_s16(q0s16), vget_low_s16(q1s16));
+    d5s16 = vsub_s16(vget_low_s16(q0s16), vget_high_s16(q1s16));
+    d7s16 = vsub_s16(vget_high_s16(q0s16), vget_low_s16(q1s16));
+
+    q2s16 = vcombine_s16(d4s16, d5s16);
+    q3s16 = vcombine_s16(d6s16, d7s16);
+
+    q0s16 = vaddq_s16(q2s16, q3s16);
+    q1s16 = vsubq_s16(q2s16, q3s16);
+
+    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(vget_low_s16(q0s16)),
+                      vreinterpret_s32_s16(vget_low_s16(q1s16)));
+    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(vget_high_s16(q0s16)),
+                      vreinterpret_s32_s16(vget_high_s16(q1s16)));
+    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),
+                      vreinterpret_s16_s32(v2tmp3.val[0]));
+    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),
+                      vreinterpret_s16_s32(v2tmp3.val[1]));
+
+    // 2nd for loop
+    d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]);
+    d6s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    d5s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]);
+    d7s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    q2s16 = vcombine_s16(d4s16, d5s16);
+    q3s16 = vcombine_s16(d6s16, d7s16);
+
+    qAdd3 = vdupq_n_s16(3);
+
+    q0s16 = vaddq_s16(q2s16, q3s16);
+    q1s16 = vsubq_s16(q2s16, q3s16);
+
+    q0s16 = vaddq_s16(q0s16, qAdd3);
+    q1s16 = vaddq_s16(q1s16, qAdd3);
+
+    q0s16 = vshrq_n_s16(q0s16, 3);
+    q1s16 = vshrq_n_s16(q1s16, 3);
+
+    // store
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16),  0);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 0);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16),  0);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 0);
+    mb_dqcoeff += 16;
+
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16),  1);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 1);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16),  1);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 1);
+    mb_dqcoeff += 16;
+
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16),  2);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 2);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16),  2);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 2);
+    mb_dqcoeff += 16;
+
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q0s16),  3);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q0s16), 3);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_low_s16(q1s16),  3);
+    mb_dqcoeff += 16;
+    vst1_lane_s16(mb_dqcoeff, vget_high_s16(q1s16), 3);
+    mb_dqcoeff += 16;
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/loopfilter_neon.c b/media/libvpx/vp8/common/arm/neon/loopfilter_neon.c
new file mode 100644
index 000000000..9d6807af7
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/loopfilter_neon.c
@@ -0,0 +1,550 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "./vpx_config.h"
+#include "vpx_ports/arm.h"
+
+static INLINE void vp8_loop_filter_neon(
+        uint8x16_t qblimit,  // flimit
+        uint8x16_t qlimit,   // limit
+        uint8x16_t qthresh,  // thresh
+        uint8x16_t q3,       // p3
+        uint8x16_t q4,       // p2
+        uint8x16_t q5,       // p1
+        uint8x16_t q6,       // p0
+        uint8x16_t q7,       // q0
+        uint8x16_t q8,       // q1
+        uint8x16_t q9,       // q2
+        uint8x16_t q10,      // q3
+        uint8x16_t *q5r,     // p1
+        uint8x16_t *q6r,     // p0
+        uint8x16_t *q7r,     // q0
+        uint8x16_t *q8r) {   // q1
+    uint8x16_t q0u8, q1u8, q2u8, q11u8, q12u8, q13u8, q14u8, q15u8;
+    int16x8_t q2s16, q11s16;
+    uint16x8_t q4u16;
+    int8x16_t q1s8, q2s8, q10s8, q11s8, q12s8, q13s8;
+    int8x8_t d2s8, d3s8;
+
+    q11u8 = vabdq_u8(q3, q4);
+    q12u8 = vabdq_u8(q4, q5);
+    q13u8 = vabdq_u8(q5, q6);
+    q14u8 = vabdq_u8(q8, q7);
+    q3    = vabdq_u8(q9, q8);
+    q4    = vabdq_u8(q10, q9);
+
+    q11u8 = vmaxq_u8(q11u8, q12u8);
+    q12u8 = vmaxq_u8(q13u8, q14u8);
+    q3    = vmaxq_u8(q3, q4);
+    q15u8 = vmaxq_u8(q11u8, q12u8);
+
+    q9 = vabdq_u8(q6, q7);
+
+    // vp8_hevmask
+    q13u8 = vcgtq_u8(q13u8, qthresh);
+    q14u8 = vcgtq_u8(q14u8, qthresh);
+    q15u8 = vmaxq_u8(q15u8, q3);
+
+    q2u8 = vabdq_u8(q5, q8);
+    q9 = vqaddq_u8(q9, q9);
+
+    q15u8 = vcgeq_u8(qlimit, q15u8);
+
+    // vp8_filter() function
+    // convert to signed
+    q10 = vdupq_n_u8(0x80);
+    q8 = veorq_u8(q8, q10);
+    q7 = veorq_u8(q7, q10);
+    q6 = veorq_u8(q6, q10);
+    q5 = veorq_u8(q5, q10);
+
+    q2u8 = vshrq_n_u8(q2u8, 1);
+    q9 = vqaddq_u8(q9, q2u8);
+
+    q10 = vdupq_n_u8(3);
+
+    q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q7)),
+                     vget_low_s8(vreinterpretq_s8_u8(q6)));
+    q11s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q7)),
+                      vget_high_s8(vreinterpretq_s8_u8(q6)));
+
+    q9 = vcgeq_u8(qblimit, q9);
+
+    q1s8 = vqsubq_s8(vreinterpretq_s8_u8(q5),
+                    vreinterpretq_s8_u8(q8));
+
+    q14u8 = vorrq_u8(q13u8, q14u8);
+
+    q4u16 = vmovl_u8(vget_low_u8(q10));
+    q2s16 = vmulq_s16(q2s16, vreinterpretq_s16_u16(q4u16));
+    q11s16 = vmulq_s16(q11s16, vreinterpretq_s16_u16(q4u16));
+
+    q1u8 = vandq_u8(vreinterpretq_u8_s8(q1s8), q14u8);
+    q15u8 = vandq_u8(q15u8, q9);
+
+    q1s8 = vreinterpretq_s8_u8(q1u8);
+    q2s16 = vaddw_s8(q2s16, vget_low_s8(q1s8));
+    q11s16 = vaddw_s8(q11s16, vget_high_s8(q1s8));
+
+    q9 = vdupq_n_u8(4);
+    // vp8_filter = clamp(vp8_filter + 3 * ( qs0 - ps0))
+    d2s8 = vqmovn_s16(q2s16);
+    d3s8 = vqmovn_s16(q11s16);
+    q1s8 = vcombine_s8(d2s8, d3s8);
+    q1u8 = vandq_u8(vreinterpretq_u8_s8(q1s8), q15u8);
+    q1s8 = vreinterpretq_s8_u8(q1u8);
+
+    q2s8 = vqaddq_s8(q1s8, vreinterpretq_s8_u8(q10));
+    q1s8 = vqaddq_s8(q1s8, vreinterpretq_s8_u8(q9));
+    q2s8 = vshrq_n_s8(q2s8, 3);
+    q1s8 = vshrq_n_s8(q1s8, 3);
+
+    q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q6), q2s8);
+    q10s8 = vqsubq_s8(vreinterpretq_s8_u8(q7), q1s8);
+
+    q1s8 = vrshrq_n_s8(q1s8, 1);
+    q1s8 = vbicq_s8(q1s8, vreinterpretq_s8_u8(q14u8));
+
+    q13s8 = vqaddq_s8(vreinterpretq_s8_u8(q5), q1s8);
+    q12s8 = vqsubq_s8(vreinterpretq_s8_u8(q8), q1s8);
+
+    q0u8 = vdupq_n_u8(0x80);
+    *q8r = veorq_u8(vreinterpretq_u8_s8(q12s8), q0u8);
+    *q7r = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8);
+    *q6r = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8);
+    *q5r = veorq_u8(vreinterpretq_u8_s8(q13s8), q0u8);
+    return;
+}
+
+void vp8_loop_filter_horizontal_edge_y_neon(
+        unsigned char *src,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh) {
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit  = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+    src -= (pitch << 2);
+
+    q3 = vld1q_u8(src);
+    src += pitch;
+    q4 = vld1q_u8(src);
+    src += pitch;
+    q5 = vld1q_u8(src);
+    src += pitch;
+    q6 = vld1q_u8(src);
+    src += pitch;
+    q7 = vld1q_u8(src);
+    src += pitch;
+    q8 = vld1q_u8(src);
+    src += pitch;
+    q9 = vld1q_u8(src);
+    src += pitch;
+    q10 = vld1q_u8(src);
+
+    vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q5, &q6, &q7, &q8);
+
+    src -= (pitch * 5);
+    vst1q_u8(src, q5);
+    src += pitch;
+    vst1q_u8(src, q6);
+    src += pitch;
+    vst1q_u8(src, q7);
+    src += pitch;
+    vst1q_u8(src, q8);
+    return;
+}
+
+void vp8_loop_filter_horizontal_edge_uv_neon(
+        unsigned char *u,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh,
+        unsigned char *v) {
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+    uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
+    uint8x8_t d15, d16, d17, d18, d19, d20, d21;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit  = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    u -= (pitch << 2);
+    v -= (pitch << 2);
+
+    d6  = vld1_u8(u);
+    u += pitch;
+    d7  = vld1_u8(v);
+    v += pitch;
+    d8  = vld1_u8(u);
+    u += pitch;
+    d9  = vld1_u8(v);
+    v += pitch;
+    d10 = vld1_u8(u);
+    u += pitch;
+    d11 = vld1_u8(v);
+    v += pitch;
+    d12 = vld1_u8(u);
+    u += pitch;
+    d13 = vld1_u8(v);
+    v += pitch;
+    d14 = vld1_u8(u);
+    u += pitch;
+    d15 = vld1_u8(v);
+    v += pitch;
+    d16 = vld1_u8(u);
+    u += pitch;
+    d17 = vld1_u8(v);
+    v += pitch;
+    d18 = vld1_u8(u);
+    u += pitch;
+    d19 = vld1_u8(v);
+    v += pitch;
+    d20 = vld1_u8(u);
+    d21 = vld1_u8(v);
+
+    q3 = vcombine_u8(d6, d7);
+    q4 = vcombine_u8(d8, d9);
+    q5 = vcombine_u8(d10, d11);
+    q6 = vcombine_u8(d12, d13);
+    q7 = vcombine_u8(d14, d15);
+    q8 = vcombine_u8(d16, d17);
+    q9 = vcombine_u8(d18, d19);
+    q10 = vcombine_u8(d20, d21);
+
+    vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q5, &q6, &q7, &q8);
+
+    u -= (pitch * 5);
+    vst1_u8(u, vget_low_u8(q5));
+    u += pitch;
+    vst1_u8(u, vget_low_u8(q6));
+    u += pitch;
+    vst1_u8(u, vget_low_u8(q7));
+    u += pitch;
+    vst1_u8(u, vget_low_u8(q8));
+
+    v -= (pitch * 5);
+    vst1_u8(v, vget_high_u8(q5));
+    v += pitch;
+    vst1_u8(v, vget_high_u8(q6));
+    v += pitch;
+    vst1_u8(v, vget_high_u8(q7));
+    v += pitch;
+    vst1_u8(v, vget_high_u8(q8));
+    return;
+}
+
+static INLINE void write_4x8(unsigned char *dst, int pitch,
+                             const uint8x8x4_t result) {
+#ifdef VPX_INCOMPATIBLE_GCC
+    /*
+     * uint8x8x4_t result
+    00 01 02 03 | 04 05 06 07
+    10 11 12 13 | 14 15 16 17
+    20 21 22 23 | 24 25 26 27
+    30 31 32 33 | 34 35 36 37
+    ---
+    * after vtrn_u16
+    00 01 20 21 | 04 05 24 25
+    02 03 22 23 | 06 07 26 27
+    10 11 30 31 | 14 15 34 35
+    12 13 32 33 | 16 17 36 37
+    ---
+    * after vtrn_u8
+    00 10 20 30 | 04 14 24 34
+    01 11 21 31 | 05 15 25 35
+    02 12 22 32 | 06 16 26 36
+    03 13 23 33 | 07 17 27 37
+    */
+    const uint16x4x2_t r02_u16 = vtrn_u16(vreinterpret_u16_u8(result.val[0]),
+                                          vreinterpret_u16_u8(result.val[2]));
+    const uint16x4x2_t r13_u16 = vtrn_u16(vreinterpret_u16_u8(result.val[1]),
+                                          vreinterpret_u16_u8(result.val[3]));
+    const uint8x8x2_t r01_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[0]),
+                                       vreinterpret_u8_u16(r13_u16.val[0]));
+    const uint8x8x2_t r23_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[1]),
+                                       vreinterpret_u8_u16(r13_u16.val[1]));
+    const uint32x2_t x_0_4 = vreinterpret_u32_u8(r01_u8.val[0]);
+    const uint32x2_t x_1_5 = vreinterpret_u32_u8(r01_u8.val[1]);
+    const uint32x2_t x_2_6 = vreinterpret_u32_u8(r23_u8.val[0]);
+    const uint32x2_t x_3_7 = vreinterpret_u32_u8(r23_u8.val[1]);
+    vst1_lane_u32((uint32_t *)dst, x_0_4, 0);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_1_5, 0);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_2_6, 0);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_3_7, 0);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_0_4, 1);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_1_5, 1);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_2_6, 1);
+    dst += pitch;
+    vst1_lane_u32((uint32_t *)dst, x_3_7, 1);
+#else
+    vst4_lane_u8(dst, result, 0);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 1);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 2);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 3);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 4);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 5);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 6);
+    dst += pitch;
+    vst4_lane_u8(dst, result, 7);
+#endif  // VPX_INCOMPATIBLE_GCC
+}
+
+void vp8_loop_filter_vertical_edge_y_neon(
+        unsigned char *src,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh) {
+    unsigned char *s, *d;
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+    uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
+    uint8x8_t d15, d16, d17, d18, d19, d20, d21;
+    uint32x4x2_t q2tmp0, q2tmp1, q2tmp2, q2tmp3;
+    uint16x8x2_t q2tmp4, q2tmp5, q2tmp6, q2tmp7;
+    uint8x16x2_t q2tmp8, q2tmp9, q2tmp10, q2tmp11;
+    uint8x8x4_t q4ResultH, q4ResultL;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit  = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    s = src - 4;
+    d6  = vld1_u8(s);
+    s += pitch;
+    d8  = vld1_u8(s);
+    s += pitch;
+    d10 = vld1_u8(s);
+    s += pitch;
+    d12 = vld1_u8(s);
+    s += pitch;
+    d14 = vld1_u8(s);
+    s += pitch;
+    d16 = vld1_u8(s);
+    s += pitch;
+    d18 = vld1_u8(s);
+    s += pitch;
+    d20 = vld1_u8(s);
+    s += pitch;
+    d7  = vld1_u8(s);
+    s += pitch;
+    d9  = vld1_u8(s);
+    s += pitch;
+    d11 = vld1_u8(s);
+    s += pitch;
+    d13 = vld1_u8(s);
+    s += pitch;
+    d15 = vld1_u8(s);
+    s += pitch;
+    d17 = vld1_u8(s);
+    s += pitch;
+    d19 = vld1_u8(s);
+    s += pitch;
+    d21 = vld1_u8(s);
+
+    q3 = vcombine_u8(d6, d7);
+    q4 = vcombine_u8(d8, d9);
+    q5 = vcombine_u8(d10, d11);
+    q6 = vcombine_u8(d12, d13);
+    q7 = vcombine_u8(d14, d15);
+    q8 = vcombine_u8(d16, d17);
+    q9 = vcombine_u8(d18, d19);
+    q10 = vcombine_u8(d20, d21);
+
+    q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
+    q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
+    q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
+    q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
+
+    q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
+                       vreinterpretq_u16_u32(q2tmp2.val[0]));
+    q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
+                       vreinterpretq_u16_u32(q2tmp3.val[0]));
+    q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
+                       vreinterpretq_u16_u32(q2tmp2.val[1]));
+    q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
+                       vreinterpretq_u16_u32(q2tmp3.val[1]));
+
+    q2tmp8  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
+                       vreinterpretq_u8_u16(q2tmp5.val[0]));
+    q2tmp9  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
+                       vreinterpretq_u8_u16(q2tmp5.val[1]));
+    q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
+                       vreinterpretq_u8_u16(q2tmp7.val[0]));
+    q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
+                       vreinterpretq_u8_u16(q2tmp7.val[1]));
+
+    q3 = q2tmp8.val[0];
+    q4 = q2tmp8.val[1];
+    q5 = q2tmp9.val[0];
+    q6 = q2tmp9.val[1];
+    q7 = q2tmp10.val[0];
+    q8 = q2tmp10.val[1];
+    q9 = q2tmp11.val[0];
+    q10 = q2tmp11.val[1];
+
+    vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q5, &q6, &q7, &q8);
+
+    q4ResultL.val[0] = vget_low_u8(q5);   // d10
+    q4ResultL.val[1] = vget_low_u8(q6);   // d12
+    q4ResultL.val[2] = vget_low_u8(q7);   // d14
+    q4ResultL.val[3] = vget_low_u8(q8);   // d16
+    q4ResultH.val[0] = vget_high_u8(q5);  // d11
+    q4ResultH.val[1] = vget_high_u8(q6);  // d13
+    q4ResultH.val[2] = vget_high_u8(q7);  // d15
+    q4ResultH.val[3] = vget_high_u8(q8);  // d17
+
+    d = src - 2;
+    write_4x8(d, pitch, q4ResultL);
+    d += pitch * 8;
+    write_4x8(d, pitch, q4ResultH);
+}
+
+void vp8_loop_filter_vertical_edge_uv_neon(
+        unsigned char *u,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh,
+        unsigned char *v) {
+    unsigned char *us, *ud;
+    unsigned char *vs, *vd;
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+    uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
+    uint8x8_t d15, d16, d17, d18, d19, d20, d21;
+    uint32x4x2_t q2tmp0, q2tmp1, q2tmp2, q2tmp3;
+    uint16x8x2_t q2tmp4, q2tmp5, q2tmp6, q2tmp7;
+    uint8x16x2_t q2tmp8, q2tmp9, q2tmp10, q2tmp11;
+    uint8x8x4_t q4ResultH, q4ResultL;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit  = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    us = u - 4;
+    d6 = vld1_u8(us);
+    us += pitch;
+    d8 = vld1_u8(us);
+    us += pitch;
+    d10 = vld1_u8(us);
+    us += pitch;
+    d12 = vld1_u8(us);
+    us += pitch;
+    d14 = vld1_u8(us);
+    us += pitch;
+    d16 = vld1_u8(us);
+    us += pitch;
+    d18 = vld1_u8(us);
+    us += pitch;
+    d20 = vld1_u8(us);
+
+    vs = v - 4;
+    d7 = vld1_u8(vs);
+    vs += pitch;
+    d9 = vld1_u8(vs);
+    vs += pitch;
+    d11 = vld1_u8(vs);
+    vs += pitch;
+    d13 = vld1_u8(vs);
+    vs += pitch;
+    d15 = vld1_u8(vs);
+    vs += pitch;
+    d17 = vld1_u8(vs);
+    vs += pitch;
+    d19 = vld1_u8(vs);
+    vs += pitch;
+    d21 = vld1_u8(vs);
+
+    q3 = vcombine_u8(d6, d7);
+    q4 = vcombine_u8(d8, d9);
+    q5 = vcombine_u8(d10, d11);
+    q6 = vcombine_u8(d12, d13);
+    q7 = vcombine_u8(d14, d15);
+    q8 = vcombine_u8(d16, d17);
+    q9 = vcombine_u8(d18, d19);
+    q10 = vcombine_u8(d20, d21);
+
+    q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
+    q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
+    q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
+    q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
+
+    q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
+                       vreinterpretq_u16_u32(q2tmp2.val[0]));
+    q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
+                       vreinterpretq_u16_u32(q2tmp3.val[0]));
+    q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
+                       vreinterpretq_u16_u32(q2tmp2.val[1]));
+    q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
+                       vreinterpretq_u16_u32(q2tmp3.val[1]));
+
+    q2tmp8  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
+                       vreinterpretq_u8_u16(q2tmp5.val[0]));
+    q2tmp9  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
+                       vreinterpretq_u8_u16(q2tmp5.val[1]));
+    q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
+                       vreinterpretq_u8_u16(q2tmp7.val[0]));
+    q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
+                       vreinterpretq_u8_u16(q2tmp7.val[1]));
+
+    q3 = q2tmp8.val[0];
+    q4 = q2tmp8.val[1];
+    q5 = q2tmp9.val[0];
+    q6 = q2tmp9.val[1];
+    q7 = q2tmp10.val[0];
+    q8 = q2tmp10.val[1];
+    q9 = q2tmp11.val[0];
+    q10 = q2tmp11.val[1];
+
+    vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q5, &q6, &q7, &q8);
+
+    q4ResultL.val[0] = vget_low_u8(q5);   // d10
+    q4ResultL.val[1] = vget_low_u8(q6);   // d12
+    q4ResultL.val[2] = vget_low_u8(q7);   // d14
+    q4ResultL.val[3] = vget_low_u8(q8);   // d16
+    ud = u - 2;
+    write_4x8(ud, pitch, q4ResultL);
+
+    q4ResultH.val[0] = vget_high_u8(q5);  // d11
+    q4ResultH.val[1] = vget_high_u8(q6);  // d13
+    q4ResultH.val[2] = vget_high_u8(q7);  // d15
+    q4ResultH.val[3] = vget_high_u8(q8);  // d17
+    vd = v - 2;
+    write_4x8(vd, pitch, q4ResultH);
+}
diff --git a/media/libvpx/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.c b/media/libvpx/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.c
new file mode 100644
index 000000000..b25686ffb
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.c
@@ -0,0 +1,111 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "./vpx_config.h"
+
+static INLINE void vp8_loop_filter_simple_horizontal_edge_neon(
+        unsigned char *s,
+        int p,
+        const unsigned char *blimit) {
+    uint8_t *sp;
+    uint8x16_t qblimit, q0u8;
+    uint8x16_t q5u8, q6u8, q7u8, q8u8, q9u8, q10u8, q14u8, q15u8;
+    int16x8_t q2s16, q3s16, q13s16;
+    int8x8_t d8s8, d9s8;
+    int8x16_t q2s8, q3s8, q4s8, q10s8, q11s8, q14s8;
+
+    qblimit = vdupq_n_u8(*blimit);
+
+    sp = s - (p << 1);
+    q5u8 = vld1q_u8(sp);
+    sp += p;
+    q6u8 = vld1q_u8(sp);
+    sp += p;
+    q7u8 = vld1q_u8(sp);
+    sp += p;
+    q8u8 = vld1q_u8(sp);
+
+    q15u8 = vabdq_u8(q6u8, q7u8);
+    q14u8 = vabdq_u8(q5u8, q8u8);
+
+    q15u8 = vqaddq_u8(q15u8, q15u8);
+    q14u8 = vshrq_n_u8(q14u8, 1);
+    q0u8 = vdupq_n_u8(0x80);
+    q13s16 = vdupq_n_s16(3);
+    q15u8 = vqaddq_u8(q15u8, q14u8);
+
+    q5u8 = veorq_u8(q5u8, q0u8);
+    q6u8 = veorq_u8(q6u8, q0u8);
+    q7u8 = veorq_u8(q7u8, q0u8);
+    q8u8 = veorq_u8(q8u8, q0u8);
+
+    q15u8 = vcgeq_u8(qblimit, q15u8);
+
+    q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q7u8)),
+                     vget_low_s8(vreinterpretq_s8_u8(q6u8)));
+    q3s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q7u8)),
+                     vget_high_s8(vreinterpretq_s8_u8(q6u8)));
+
+    q4s8 = vqsubq_s8(vreinterpretq_s8_u8(q5u8),
+                     vreinterpretq_s8_u8(q8u8));
+
+    q2s16 = vmulq_s16(q2s16, q13s16);
+    q3s16 = vmulq_s16(q3s16, q13s16);
+
+    q10u8 = vdupq_n_u8(3);
+    q9u8 = vdupq_n_u8(4);
+
+    q2s16 = vaddw_s8(q2s16, vget_low_s8(q4s8));
+    q3s16 = vaddw_s8(q3s16, vget_high_s8(q4s8));
+
+    d8s8 = vqmovn_s16(q2s16);
+    d9s8 = vqmovn_s16(q3s16);
+    q4s8 = vcombine_s8(d8s8, d9s8);
+
+    q14s8 = vandq_s8(q4s8, vreinterpretq_s8_u8(q15u8));
+
+    q2s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q10u8));
+    q3s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q9u8));
+    q2s8 = vshrq_n_s8(q2s8, 3);
+    q3s8 = vshrq_n_s8(q3s8, 3);
+
+    q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q6u8), q2s8);
+    q10s8 = vqsubq_s8(vreinterpretq_s8_u8(q7u8), q3s8);
+
+    q6u8 = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8);
+    q7u8 = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8);
+
+    vst1q_u8(s, q7u8);
+    s -= p;
+    vst1q_u8(s, q6u8);
+    return;
+}
+
+void vp8_loop_filter_bhs_neon(
+        unsigned char *y_ptr,
+        int y_stride,
+        const unsigned char *blimit) {
+    y_ptr += y_stride * 4;
+    vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
+    y_ptr += y_stride * 4;
+    vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
+    y_ptr += y_stride * 4;
+    vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
+    return;
+}
+
+void vp8_loop_filter_mbhs_neon(
+        unsigned char *y_ptr,
+        int y_stride,
+        const unsigned char *blimit) {
+    vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.c b/media/libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.c
new file mode 100644
index 000000000..e1c8609e3
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.c
@@ -0,0 +1,280 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "./vpx_config.h"
+#include "vpx_ports/arm.h"
+
+#ifdef VPX_INCOMPATIBLE_GCC
+static INLINE void write_2x4(unsigned char *dst, int pitch,
+                             const uint8x8x2_t result) {
+    /*
+     * uint8x8x2_t result
+    00 01 02 03 | 04 05 06 07
+    10 11 12 13 | 14 15 16 17
+    ---
+    * after vtrn_u8
+    00 10 02 12 | 04 14 06 16
+    01 11 03 13 | 05 15 07 17
+    */
+    const uint8x8x2_t r01_u8 = vtrn_u8(result.val[0],
+                                       result.val[1]);
+    const uint16x4_t x_0_4 = vreinterpret_u16_u8(r01_u8.val[0]);
+    const uint16x4_t x_1_5 = vreinterpret_u16_u8(r01_u8.val[1]);
+    vst1_lane_u16((uint16_t *)dst, x_0_4, 0);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_1_5, 0);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_0_4, 1);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_1_5, 1);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_0_4, 2);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_1_5, 2);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_0_4, 3);
+    dst += pitch;
+    vst1_lane_u16((uint16_t *)dst, x_1_5, 3);
+}
+
+static INLINE void write_2x8(unsigned char *dst, int pitch,
+                             const uint8x8x2_t result,
+                             const uint8x8x2_t result2) {
+  write_2x4(dst, pitch, result);
+  dst += pitch * 8;
+  write_2x4(dst, pitch, result2);
+}
+#else
+static INLINE void write_2x8(unsigned char *dst, int pitch,
+                             const uint8x8x2_t result,
+                             const uint8x8x2_t result2) {
+  vst2_lane_u8(dst, result, 0);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 1);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 2);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 3);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 4);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 5);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 6);
+  dst += pitch;
+  vst2_lane_u8(dst, result, 7);
+  dst += pitch;
+
+  vst2_lane_u8(dst, result2, 0);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 1);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 2);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 3);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 4);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 5);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 6);
+  dst += pitch;
+  vst2_lane_u8(dst, result2, 7);
+}
+#endif  // VPX_INCOMPATIBLE_GCC
+
+
+#ifdef VPX_INCOMPATIBLE_GCC
+static INLINE
+uint8x8x4_t read_4x8(unsigned char *src, int pitch, uint8x8x4_t x) {
+    const uint8x8_t a = vld1_u8(src);
+    const uint8x8_t b = vld1_u8(src + pitch * 1);
+    const uint8x8_t c = vld1_u8(src + pitch * 2);
+    const uint8x8_t d = vld1_u8(src + pitch * 3);
+    const uint8x8_t e = vld1_u8(src + pitch * 4);
+    const uint8x8_t f = vld1_u8(src + pitch * 5);
+    const uint8x8_t g = vld1_u8(src + pitch * 6);
+    const uint8x8_t h = vld1_u8(src + pitch * 7);
+    const uint32x2x2_t r04_u32 = vtrn_u32(vreinterpret_u32_u8(a),
+                                          vreinterpret_u32_u8(e));
+    const uint32x2x2_t r15_u32 = vtrn_u32(vreinterpret_u32_u8(b),
+                                          vreinterpret_u32_u8(f));
+    const uint32x2x2_t r26_u32 = vtrn_u32(vreinterpret_u32_u8(c),
+                                          vreinterpret_u32_u8(g));
+    const uint32x2x2_t r37_u32 = vtrn_u32(vreinterpret_u32_u8(d),
+                                          vreinterpret_u32_u8(h));
+    const uint16x4x2_t r02_u16 = vtrn_u16(vreinterpret_u16_u32(r04_u32.val[0]),
+                                          vreinterpret_u16_u32(r26_u32.val[0]));
+    const uint16x4x2_t r13_u16 = vtrn_u16(vreinterpret_u16_u32(r15_u32.val[0]),
+                                          vreinterpret_u16_u32(r37_u32.val[0]));
+    const uint8x8x2_t r01_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[0]),
+                                       vreinterpret_u8_u16(r13_u16.val[0]));
+    const uint8x8x2_t r23_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[1]),
+                                       vreinterpret_u8_u16(r13_u16.val[1]));
+    /*
+     * after vtrn_u32
+    00 01 02 03 | 40 41 42 43
+    10 11 12 13 | 50 51 52 53
+    20 21 22 23 | 60 61 62 63
+    30 31 32 33 | 70 71 72 73
+    ---
+    * after vtrn_u16
+    00 01 20 21 | 40 41 60 61
+    02 03 22 23 | 42 43 62 63
+    10 11 30 31 | 50 51 70 71
+    12 13 32 33 | 52 52 72 73
+
+    00 01 20 21 | 40 41 60 61
+    10 11 30 31 | 50 51 70 71
+    02 03 22 23 | 42 43 62 63
+    12 13 32 33 | 52 52 72 73
+    ---
+    * after vtrn_u8
+    00 10 20 30 | 40 50 60 70
+    01 11 21 31 | 41 51 61 71
+    02 12 22 32 | 42 52 62 72
+    03 13 23 33 | 43 53 63 73
+    */
+    x.val[0] = r01_u8.val[0];
+    x.val[1] = r01_u8.val[1];
+    x.val[2] = r23_u8.val[0];
+    x.val[3] = r23_u8.val[1];
+
+    return x;
+}
+#else
+static INLINE
+uint8x8x4_t read_4x8(unsigned char *src, int pitch, uint8x8x4_t x) {
+    x = vld4_lane_u8(src, x, 0);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 1);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 2);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 3);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 4);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 5);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 6);
+    src += pitch;
+    x = vld4_lane_u8(src, x, 7);
+    return x;
+}
+#endif  // VPX_INCOMPATIBLE_GCC
+
+static INLINE void vp8_loop_filter_simple_vertical_edge_neon(
+        unsigned char *s,
+        int p,
+        const unsigned char *blimit) {
+    unsigned char *src1;
+    uint8x16_t qblimit, q0u8;
+    uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8, q11u8, q12u8, q14u8, q15u8;
+    int16x8_t q2s16, q13s16, q11s16;
+    int8x8_t d28s8, d29s8;
+    int8x16_t q2s8, q3s8, q10s8, q11s8, q14s8;
+    uint8x8x4_t d0u8x4;  // d6, d7, d8, d9
+    uint8x8x4_t d1u8x4;  // d10, d11, d12, d13
+    uint8x8x2_t d2u8x2;  // d12, d13
+    uint8x8x2_t d3u8x2;  // d14, d15
+
+    qblimit = vdupq_n_u8(*blimit);
+
+    src1 = s - 2;
+    d0u8x4 = read_4x8(src1, p, d0u8x4);
+    src1 += p * 8;
+    d1u8x4 = read_4x8(src1, p, d1u8x4);
+
+    q3u8 = vcombine_u8(d0u8x4.val[0], d1u8x4.val[0]);  // d6 d10
+    q4u8 = vcombine_u8(d0u8x4.val[2], d1u8x4.val[2]);  // d8 d12
+    q5u8 = vcombine_u8(d0u8x4.val[1], d1u8x4.val[1]);  // d7 d11
+    q6u8 = vcombine_u8(d0u8x4.val[3], d1u8x4.val[3]);  // d9 d13
+
+    q15u8 = vabdq_u8(q5u8, q4u8);
+    q14u8 = vabdq_u8(q3u8, q6u8);
+
+    q15u8 = vqaddq_u8(q15u8, q15u8);
+    q14u8 = vshrq_n_u8(q14u8, 1);
+    q0u8 = vdupq_n_u8(0x80);
+    q11s16 = vdupq_n_s16(3);
+    q15u8 = vqaddq_u8(q15u8, q14u8);
+
+    q3u8 = veorq_u8(q3u8, q0u8);
+    q4u8 = veorq_u8(q4u8, q0u8);
+    q5u8 = veorq_u8(q5u8, q0u8);
+    q6u8 = veorq_u8(q6u8, q0u8);
+
+    q15u8 = vcgeq_u8(qblimit, q15u8);
+
+    q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q4u8)),
+                     vget_low_s8(vreinterpretq_s8_u8(q5u8)));
+    q13s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q4u8)),
+                      vget_high_s8(vreinterpretq_s8_u8(q5u8)));
+
+    q14s8 = vqsubq_s8(vreinterpretq_s8_u8(q3u8),
+                      vreinterpretq_s8_u8(q6u8));
+
+    q2s16 = vmulq_s16(q2s16, q11s16);
+    q13s16 = vmulq_s16(q13s16, q11s16);
+
+    q11u8 = vdupq_n_u8(3);
+    q12u8 = vdupq_n_u8(4);
+
+    q2s16 = vaddw_s8(q2s16, vget_low_s8(q14s8));
+    q13s16 = vaddw_s8(q13s16, vget_high_s8(q14s8));
+
+    d28s8 = vqmovn_s16(q2s16);
+    d29s8 = vqmovn_s16(q13s16);
+    q14s8 = vcombine_s8(d28s8, d29s8);
+
+    q14s8 = vandq_s8(q14s8, vreinterpretq_s8_u8(q15u8));
+
+    q2s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q11u8));
+    q3s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q12u8));
+    q2s8 = vshrq_n_s8(q2s8, 3);
+    q14s8 = vshrq_n_s8(q3s8, 3);
+
+    q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q5u8), q2s8);
+    q10s8 = vqsubq_s8(vreinterpretq_s8_u8(q4u8), q14s8);
+
+    q6u8 = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8);
+    q7u8 = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8);
+
+    d2u8x2.val[0] = vget_low_u8(q6u8);   // d12
+    d2u8x2.val[1] = vget_low_u8(q7u8);   // d14
+    d3u8x2.val[0] = vget_high_u8(q6u8);  // d13
+    d3u8x2.val[1] = vget_high_u8(q7u8);  // d15
+
+    src1 = s - 1;
+    write_2x8(src1, p, d2u8x2, d3u8x2);
+}
+
+void vp8_loop_filter_bvs_neon(
+        unsigned char *y_ptr,
+        int y_stride,
+        const unsigned char *blimit) {
+    y_ptr += 4;
+    vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
+    y_ptr += 4;
+    vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
+    y_ptr += 4;
+    vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
+    return;
+}
+
+void vp8_loop_filter_mbvs_neon(
+        unsigned char *y_ptr,
+        int y_stride,
+        const unsigned char *blimit) {
+    vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/mbloopfilter_neon.c b/media/libvpx/vp8/common/arm/neon/mbloopfilter_neon.c
new file mode 100644
index 000000000..5351f4be6
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/mbloopfilter_neon.c
@@ -0,0 +1,625 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "./vpx_config.h"
+
+static INLINE void vp8_mbloop_filter_neon(
+        uint8x16_t qblimit,  // mblimit
+        uint8x16_t qlimit,   // limit
+        uint8x16_t qthresh,  // thresh
+        uint8x16_t q3,       // p2
+        uint8x16_t q4,       // p2
+        uint8x16_t q5,       // p1
+        uint8x16_t q6,       // p0
+        uint8x16_t q7,       // q0
+        uint8x16_t q8,       // q1
+        uint8x16_t q9,       // q2
+        uint8x16_t q10,      // q3
+        uint8x16_t *q4r,     // p1
+        uint8x16_t *q5r,     // p1
+        uint8x16_t *q6r,     // p0
+        uint8x16_t *q7r,     // q0
+        uint8x16_t *q8r,     // q1
+        uint8x16_t *q9r) {   // q1
+    uint8x16_t q0u8, q1u8, q11u8, q12u8, q13u8, q14u8, q15u8;
+    int16x8_t q0s16, q2s16, q11s16, q12s16, q13s16, q14s16, q15s16;
+    int8x16_t q1s8, q6s8, q7s8, q2s8, q11s8, q13s8;
+    uint16x8_t q0u16, q11u16, q12u16, q13u16, q14u16, q15u16;
+    int8x16_t q0s8, q12s8, q14s8, q15s8;
+    int8x8_t d0, d1, d2, d3, d4, d5, d24, d25, d28, d29;
+
+    q11u8 = vabdq_u8(q3, q4);
+    q12u8 = vabdq_u8(q4, q5);
+    q13u8 = vabdq_u8(q5, q6);
+    q14u8 = vabdq_u8(q8, q7);
+    q1u8  = vabdq_u8(q9, q8);
+    q0u8  = vabdq_u8(q10, q9);
+
+    q11u8 = vmaxq_u8(q11u8, q12u8);
+    q12u8 = vmaxq_u8(q13u8, q14u8);
+    q1u8  = vmaxq_u8(q1u8, q0u8);
+    q15u8 = vmaxq_u8(q11u8, q12u8);
+
+    q12u8 = vabdq_u8(q6, q7);
+
+    // vp8_hevmask
+    q13u8 = vcgtq_u8(q13u8, qthresh);
+    q14u8 = vcgtq_u8(q14u8, qthresh);
+    q15u8 = vmaxq_u8(q15u8, q1u8);
+
+    q15u8 = vcgeq_u8(qlimit, q15u8);
+
+    q1u8 = vabdq_u8(q5, q8);
+    q12u8 = vqaddq_u8(q12u8, q12u8);
+
+    // vp8_filter() function
+    // convert to signed
+    q0u8 = vdupq_n_u8(0x80);
+    q9 = veorq_u8(q9, q0u8);
+    q8 = veorq_u8(q8, q0u8);
+    q7 = veorq_u8(q7, q0u8);
+    q6 = veorq_u8(q6, q0u8);
+    q5 = veorq_u8(q5, q0u8);
+    q4 = veorq_u8(q4, q0u8);
+
+    q1u8 = vshrq_n_u8(q1u8, 1);
+    q12u8 = vqaddq_u8(q12u8, q1u8);
+
+    q14u8 = vorrq_u8(q13u8, q14u8);
+    q12u8 = vcgeq_u8(qblimit, q12u8);
+
+    q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q7)),
+                     vget_low_s8(vreinterpretq_s8_u8(q6)));
+    q13s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q7)),
+                      vget_high_s8(vreinterpretq_s8_u8(q6)));
+
+    q1s8 = vqsubq_s8(vreinterpretq_s8_u8(q5),
+                     vreinterpretq_s8_u8(q8));
+
+    q11s16 = vdupq_n_s16(3);
+    q2s16  = vmulq_s16(q2s16, q11s16);
+    q13s16 = vmulq_s16(q13s16, q11s16);
+
+    q15u8 = vandq_u8(q15u8, q12u8);
+
+    q2s16  = vaddw_s8(q2s16, vget_low_s8(q1s8));
+    q13s16 = vaddw_s8(q13s16, vget_high_s8(q1s8));
+
+    q12u8 = vdupq_n_u8(3);
+    q11u8 = vdupq_n_u8(4);
+    // vp8_filter = clamp(vp8_filter + 3 * ( qs0 - ps0))
+    d2 = vqmovn_s16(q2s16);
+    d3 = vqmovn_s16(q13s16);
+    q1s8 = vcombine_s8(d2, d3);
+    q1s8 = vandq_s8(q1s8, vreinterpretq_s8_u8(q15u8));
+    q13s8 = vandq_s8(q1s8, vreinterpretq_s8_u8(q14u8));
+
+    q2s8 = vqaddq_s8(q13s8, vreinterpretq_s8_u8(q11u8));
+    q13s8 = vqaddq_s8(q13s8, vreinterpretq_s8_u8(q12u8));
+    q2s8 = vshrq_n_s8(q2s8, 3);
+    q13s8 = vshrq_n_s8(q13s8, 3);
+
+    q7s8 = vqsubq_s8(vreinterpretq_s8_u8(q7), q2s8);
+    q6s8 = vqaddq_s8(vreinterpretq_s8_u8(q6), q13s8);
+
+    q1s8 = vbicq_s8(q1s8, vreinterpretq_s8_u8(q14u8));
+
+    q0u16 = q11u16 = q12u16 = q13u16 = q14u16 = q15u16 = vdupq_n_u16(63);
+    d5 = vdup_n_s8(9);
+    d4 = vdup_n_s8(18);
+
+    q0s16  = vmlal_s8(vreinterpretq_s16_u16(q0u16),  vget_low_s8(q1s8),  d5);
+    q11s16 = vmlal_s8(vreinterpretq_s16_u16(q11u16), vget_high_s8(q1s8), d5);
+    d5 = vdup_n_s8(27);
+    q12s16 = vmlal_s8(vreinterpretq_s16_u16(q12u16), vget_low_s8(q1s8),  d4);
+    q13s16 = vmlal_s8(vreinterpretq_s16_u16(q13u16), vget_high_s8(q1s8), d4);
+    q14s16 = vmlal_s8(vreinterpretq_s16_u16(q14u16), vget_low_s8(q1s8),  d5);
+    q15s16 = vmlal_s8(vreinterpretq_s16_u16(q15u16), vget_high_s8(q1s8), d5);
+
+    d0  = vqshrn_n_s16(q0s16 , 7);
+    d1  = vqshrn_n_s16(q11s16, 7);
+    d24 = vqshrn_n_s16(q12s16, 7);
+    d25 = vqshrn_n_s16(q13s16, 7);
+    d28 = vqshrn_n_s16(q14s16, 7);
+    d29 = vqshrn_n_s16(q15s16, 7);
+
+    q0s8  = vcombine_s8(d0, d1);
+    q12s8 = vcombine_s8(d24, d25);
+    q14s8 = vcombine_s8(d28, d29);
+
+    q11s8 = vqsubq_s8(vreinterpretq_s8_u8(q9), q0s8);
+    q0s8  = vqaddq_s8(vreinterpretq_s8_u8(q4), q0s8);
+    q13s8 = vqsubq_s8(vreinterpretq_s8_u8(q8), q12s8);
+    q12s8 = vqaddq_s8(vreinterpretq_s8_u8(q5), q12s8);
+    q15s8 = vqsubq_s8((q7s8), q14s8);
+    q14s8 = vqaddq_s8((q6s8), q14s8);
+
+    q1u8 = vdupq_n_u8(0x80);
+    *q9r = veorq_u8(vreinterpretq_u8_s8(q11s8), q1u8);
+    *q8r = veorq_u8(vreinterpretq_u8_s8(q13s8), q1u8);
+    *q7r = veorq_u8(vreinterpretq_u8_s8(q15s8), q1u8);
+    *q6r = veorq_u8(vreinterpretq_u8_s8(q14s8), q1u8);
+    *q5r = veorq_u8(vreinterpretq_u8_s8(q12s8), q1u8);
+    *q4r = veorq_u8(vreinterpretq_u8_s8(q0s8), q1u8);
+    return;
+}
+
+void vp8_mbloop_filter_horizontal_edge_y_neon(
+        unsigned char *src,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh) {
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    src -= (pitch << 2);
+
+    q3 = vld1q_u8(src);
+    src += pitch;
+    q4 = vld1q_u8(src);
+    src += pitch;
+    q5 = vld1q_u8(src);
+    src += pitch;
+    q6 = vld1q_u8(src);
+    src += pitch;
+    q7 = vld1q_u8(src);
+    src += pitch;
+    q8 = vld1q_u8(src);
+    src += pitch;
+    q9 = vld1q_u8(src);
+    src += pitch;
+    q10 = vld1q_u8(src);
+
+    vp8_mbloop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q4, &q5, &q6, &q7, &q8, &q9);
+
+    src -= (pitch * 6);
+    vst1q_u8(src, q4);
+    src += pitch;
+    vst1q_u8(src, q5);
+    src += pitch;
+    vst1q_u8(src, q6);
+    src += pitch;
+    vst1q_u8(src, q7);
+    src += pitch;
+    vst1q_u8(src, q8);
+    src += pitch;
+    vst1q_u8(src, q9);
+    return;
+}
+
+void vp8_mbloop_filter_horizontal_edge_uv_neon(
+        unsigned char *u,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh,
+        unsigned char *v) {
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+    uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
+    uint8x8_t d15, d16, d17, d18, d19, d20, d21;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    u -= (pitch << 2);
+    v -= (pitch << 2);
+
+    d6 = vld1_u8(u);
+    u += pitch;
+    d7 = vld1_u8(v);
+    v += pitch;
+    d8 = vld1_u8(u);
+    u += pitch;
+    d9 = vld1_u8(v);
+    v += pitch;
+    d10 = vld1_u8(u);
+    u += pitch;
+    d11 = vld1_u8(v);
+    v += pitch;
+    d12 = vld1_u8(u);
+    u += pitch;
+    d13 = vld1_u8(v);
+    v += pitch;
+    d14 = vld1_u8(u);
+    u += pitch;
+    d15 = vld1_u8(v);
+    v += pitch;
+    d16 = vld1_u8(u);
+    u += pitch;
+    d17 = vld1_u8(v);
+    v += pitch;
+    d18 = vld1_u8(u);
+    u += pitch;
+    d19 = vld1_u8(v);
+    v += pitch;
+    d20 = vld1_u8(u);
+    d21 = vld1_u8(v);
+
+    q3 = vcombine_u8(d6, d7);
+    q4 = vcombine_u8(d8, d9);
+    q5 = vcombine_u8(d10, d11);
+    q6 = vcombine_u8(d12, d13);
+    q7 = vcombine_u8(d14, d15);
+    q8 = vcombine_u8(d16, d17);
+    q9 = vcombine_u8(d18, d19);
+    q10 = vcombine_u8(d20, d21);
+
+    vp8_mbloop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q4, &q5, &q6, &q7, &q8, &q9);
+
+    u -= (pitch * 6);
+    v -= (pitch * 6);
+    vst1_u8(u, vget_low_u8(q4));
+    u += pitch;
+    vst1_u8(v, vget_high_u8(q4));
+    v += pitch;
+    vst1_u8(u, vget_low_u8(q5));
+    u += pitch;
+    vst1_u8(v, vget_high_u8(q5));
+    v += pitch;
+    vst1_u8(u, vget_low_u8(q6));
+    u += pitch;
+    vst1_u8(v, vget_high_u8(q6));
+    v += pitch;
+    vst1_u8(u, vget_low_u8(q7));
+    u += pitch;
+    vst1_u8(v, vget_high_u8(q7));
+    v += pitch;
+    vst1_u8(u, vget_low_u8(q8));
+    u += pitch;
+    vst1_u8(v, vget_high_u8(q8));
+    v += pitch;
+    vst1_u8(u, vget_low_u8(q9));
+    vst1_u8(v, vget_high_u8(q9));
+    return;
+}
+
+void vp8_mbloop_filter_vertical_edge_y_neon(
+        unsigned char *src,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh) {
+    unsigned char *s1, *s2;
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+    uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
+    uint8x8_t d15, d16, d17, d18, d19, d20, d21;
+    uint32x4x2_t q2tmp0, q2tmp1, q2tmp2, q2tmp3;
+    uint16x8x2_t q2tmp4, q2tmp5, q2tmp6, q2tmp7;
+    uint8x16x2_t q2tmp8, q2tmp9, q2tmp10, q2tmp11;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    s1 = src - 4;
+    s2 = s1 + 8 * pitch;
+    d6  = vld1_u8(s1);
+    s1 += pitch;
+    d7  = vld1_u8(s2);
+    s2 += pitch;
+    d8  = vld1_u8(s1);
+    s1 += pitch;
+    d9  = vld1_u8(s2);
+    s2 += pitch;
+    d10 = vld1_u8(s1);
+    s1 += pitch;
+    d11 = vld1_u8(s2);
+    s2 += pitch;
+    d12 = vld1_u8(s1);
+    s1 += pitch;
+    d13 = vld1_u8(s2);
+    s2 += pitch;
+    d14 = vld1_u8(s1);
+    s1 += pitch;
+    d15 = vld1_u8(s2);
+    s2 += pitch;
+    d16 = vld1_u8(s1);
+    s1 += pitch;
+    d17 = vld1_u8(s2);
+    s2 += pitch;
+    d18 = vld1_u8(s1);
+    s1 += pitch;
+    d19 = vld1_u8(s2);
+    s2 += pitch;
+    d20 = vld1_u8(s1);
+    d21 = vld1_u8(s2);
+
+    q3 = vcombine_u8(d6, d7);
+    q4 = vcombine_u8(d8, d9);
+    q5 = vcombine_u8(d10, d11);
+    q6 = vcombine_u8(d12, d13);
+    q7 = vcombine_u8(d14, d15);
+    q8 = vcombine_u8(d16, d17);
+    q9 = vcombine_u8(d18, d19);
+    q10 = vcombine_u8(d20, d21);
+
+    q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
+    q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
+    q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
+    q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
+
+    q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
+                       vreinterpretq_u16_u32(q2tmp2.val[0]));
+    q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
+                       vreinterpretq_u16_u32(q2tmp3.val[0]));
+    q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
+                       vreinterpretq_u16_u32(q2tmp2.val[1]));
+    q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
+                       vreinterpretq_u16_u32(q2tmp3.val[1]));
+
+    q2tmp8  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
+                       vreinterpretq_u8_u16(q2tmp5.val[0]));
+    q2tmp9  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
+                       vreinterpretq_u8_u16(q2tmp5.val[1]));
+    q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
+                       vreinterpretq_u8_u16(q2tmp7.val[0]));
+    q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
+                       vreinterpretq_u8_u16(q2tmp7.val[1]));
+
+    q3 = q2tmp8.val[0];
+    q4 = q2tmp8.val[1];
+    q5 = q2tmp9.val[0];
+    q6 = q2tmp9.val[1];
+    q7 = q2tmp10.val[0];
+    q8 = q2tmp10.val[1];
+    q9 = q2tmp11.val[0];
+    q10 = q2tmp11.val[1];
+
+    vp8_mbloop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q4, &q5, &q6, &q7, &q8, &q9);
+
+    q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
+    q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
+    q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
+    q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
+
+    q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
+                       vreinterpretq_u16_u32(q2tmp2.val[0]));
+    q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
+                       vreinterpretq_u16_u32(q2tmp3.val[0]));
+    q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
+                       vreinterpretq_u16_u32(q2tmp2.val[1]));
+    q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
+                       vreinterpretq_u16_u32(q2tmp3.val[1]));
+
+    q2tmp8  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
+                       vreinterpretq_u8_u16(q2tmp5.val[0]));
+    q2tmp9  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
+                       vreinterpretq_u8_u16(q2tmp5.val[1]));
+    q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
+                       vreinterpretq_u8_u16(q2tmp7.val[0]));
+    q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
+                       vreinterpretq_u8_u16(q2tmp7.val[1]));
+
+    q3 = q2tmp8.val[0];
+    q4 = q2tmp8.val[1];
+    q5 = q2tmp9.val[0];
+    q6 = q2tmp9.val[1];
+    q7 = q2tmp10.val[0];
+    q8 = q2tmp10.val[1];
+    q9 = q2tmp11.val[0];
+    q10 = q2tmp11.val[1];
+
+    s1 -= 7 * pitch;
+    s2 -= 7 * pitch;
+
+    vst1_u8(s1, vget_low_u8(q3));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q3));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q4));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q4));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q5));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q5));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q6));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q6));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q7));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q7));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q8));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q8));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q9));
+    s1 += pitch;
+    vst1_u8(s2, vget_high_u8(q9));
+    s2 += pitch;
+    vst1_u8(s1, vget_low_u8(q10));
+    vst1_u8(s2, vget_high_u8(q10));
+    return;
+}
+
+void vp8_mbloop_filter_vertical_edge_uv_neon(
+        unsigned char *u,
+        int pitch,
+        unsigned char blimit,
+        unsigned char limit,
+        unsigned char thresh,
+        unsigned char *v) {
+    unsigned char *us, *ud;
+    unsigned char *vs, *vd;
+    uint8x16_t qblimit, qlimit, qthresh, q3, q4;
+    uint8x16_t q5, q6, q7, q8, q9, q10;
+    uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
+    uint8x8_t d15, d16, d17, d18, d19, d20, d21;
+    uint32x4x2_t q2tmp0, q2tmp1, q2tmp2, q2tmp3;
+    uint16x8x2_t q2tmp4, q2tmp5, q2tmp6, q2tmp7;
+    uint8x16x2_t q2tmp8, q2tmp9, q2tmp10, q2tmp11;
+
+    qblimit = vdupq_n_u8(blimit);
+    qlimit = vdupq_n_u8(limit);
+    qthresh = vdupq_n_u8(thresh);
+
+    us = u - 4;
+    vs = v - 4;
+    d6 = vld1_u8(us);
+    us += pitch;
+    d7 = vld1_u8(vs);
+    vs += pitch;
+    d8 = vld1_u8(us);
+    us += pitch;
+    d9 = vld1_u8(vs);
+    vs += pitch;
+    d10 = vld1_u8(us);
+    us += pitch;
+    d11 = vld1_u8(vs);
+    vs += pitch;
+    d12 = vld1_u8(us);
+    us += pitch;
+    d13 = vld1_u8(vs);
+    vs += pitch;
+    d14 = vld1_u8(us);
+    us += pitch;
+    d15 = vld1_u8(vs);
+    vs += pitch;
+    d16 = vld1_u8(us);
+    us += pitch;
+    d17 = vld1_u8(vs);
+    vs += pitch;
+    d18 = vld1_u8(us);
+    us += pitch;
+    d19 = vld1_u8(vs);
+    vs += pitch;
+    d20 = vld1_u8(us);
+    d21 = vld1_u8(vs);
+
+    q3 = vcombine_u8(d6, d7);
+    q4 = vcombine_u8(d8, d9);
+    q5 = vcombine_u8(d10, d11);
+    q6 = vcombine_u8(d12, d13);
+    q7 = vcombine_u8(d14, d15);
+    q8 = vcombine_u8(d16, d17);
+    q9 = vcombine_u8(d18, d19);
+    q10 = vcombine_u8(d20, d21);
+
+    q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
+    q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
+    q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
+    q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
+
+    q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
+                       vreinterpretq_u16_u32(q2tmp2.val[0]));
+    q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
+                       vreinterpretq_u16_u32(q2tmp3.val[0]));
+    q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
+                       vreinterpretq_u16_u32(q2tmp2.val[1]));
+    q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
+                       vreinterpretq_u16_u32(q2tmp3.val[1]));
+
+    q2tmp8  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
+                       vreinterpretq_u8_u16(q2tmp5.val[0]));
+    q2tmp9  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
+                       vreinterpretq_u8_u16(q2tmp5.val[1]));
+    q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
+                       vreinterpretq_u8_u16(q2tmp7.val[0]));
+    q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
+                       vreinterpretq_u8_u16(q2tmp7.val[1]));
+
+    q3 = q2tmp8.val[0];
+    q4 = q2tmp8.val[1];
+    q5 = q2tmp9.val[0];
+    q6 = q2tmp9.val[1];
+    q7 = q2tmp10.val[0];
+    q8 = q2tmp10.val[1];
+    q9 = q2tmp11.val[0];
+    q10 = q2tmp11.val[1];
+
+    vp8_mbloop_filter_neon(qblimit, qlimit, qthresh, q3, q4,
+                         q5, q6, q7, q8, q9, q10,
+                         &q4, &q5, &q6, &q7, &q8, &q9);
+
+    q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
+    q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
+    q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
+    q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
+
+    q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
+                       vreinterpretq_u16_u32(q2tmp2.val[0]));
+    q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
+                       vreinterpretq_u16_u32(q2tmp3.val[0]));
+    q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
+                       vreinterpretq_u16_u32(q2tmp2.val[1]));
+    q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
+                       vreinterpretq_u16_u32(q2tmp3.val[1]));
+
+    q2tmp8  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
+                       vreinterpretq_u8_u16(q2tmp5.val[0]));
+    q2tmp9  = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
+                       vreinterpretq_u8_u16(q2tmp5.val[1]));
+    q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
+                       vreinterpretq_u8_u16(q2tmp7.val[0]));
+    q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
+                       vreinterpretq_u8_u16(q2tmp7.val[1]));
+
+    q3 = q2tmp8.val[0];
+    q4 = q2tmp8.val[1];
+    q5 = q2tmp9.val[0];
+    q6 = q2tmp9.val[1];
+    q7 = q2tmp10.val[0];
+    q8 = q2tmp10.val[1];
+    q9 = q2tmp11.val[0];
+    q10 = q2tmp11.val[1];
+
+    ud = u - 4;
+    vst1_u8(ud, vget_low_u8(q3));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q4));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q5));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q6));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q7));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q8));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q9));
+    ud += pitch;
+    vst1_u8(ud, vget_low_u8(q10));
+
+    vd = v - 4;
+    vst1_u8(vd, vget_high_u8(q3));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q4));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q5));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q6));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q7));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q8));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q9));
+    vd += pitch;
+    vst1_u8(vd, vget_high_u8(q10));
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/reconintra_neon.c b/media/libvpx/vp8/common/arm/neon/reconintra_neon.c
new file mode 100644
index 000000000..af52cd5ea
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/reconintra_neon.c
@@ -0,0 +1,210 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+#include "vp8/common/blockd.h"
+
+void vp8_build_intra_predictors_mby_s_neon(MACROBLOCKD *x,
+                                           unsigned char * yabove_row,
+                                           unsigned char * yleft,
+                                           int left_stride,
+                                           unsigned char * ypred_ptr,
+                                           int y_stride) {
+  const int mode = x->mode_info_context->mbmi.mode;
+  int i;
+
+  switch (mode) {
+    case DC_PRED:
+    {
+      int shift = x->up_available + x->left_available;
+      uint8x16_t v_expected_dc = vdupq_n_u8(128);
+
+      if (shift) {
+        unsigned int average = 0;
+        int expected_dc;
+        if (x->up_available) {
+          const uint8x16_t v_above = vld1q_u8(yabove_row);
+          const uint16x8_t a = vpaddlq_u8(v_above);
+          const uint32x4_t b = vpaddlq_u16(a);
+          const uint64x2_t c = vpaddlq_u32(b);
+          const uint32x2_t d = vadd_u32(vreinterpret_u32_u64(vget_low_u64(c)),
+                                        vreinterpret_u32_u64(vget_high_u64(c)));
+          average = vget_lane_u32(d, 0);
+        }
+        if (x->left_available) {
+          for (i = 0; i < 16; ++i) {
+              average += yleft[0];
+              yleft += left_stride;
+          }
+        }
+        shift += 3;
+        expected_dc = (average + (1 << (shift - 1))) >> shift;
+        v_expected_dc = vmovq_n_u8((uint8_t)expected_dc);
+      }
+      for (i = 0; i < 16; ++i) {
+        vst1q_u8(ypred_ptr, v_expected_dc);
+        ypred_ptr += y_stride;
+      }
+    }
+    break;
+    case V_PRED:
+    {
+      const uint8x16_t v_above = vld1q_u8(yabove_row);
+      for (i = 0; i < 16; ++i) {
+        vst1q_u8(ypred_ptr, v_above);
+        ypred_ptr += y_stride;
+      }
+    }
+    break;
+    case H_PRED:
+    {
+      for (i = 0; i < 16; ++i) {
+        const uint8x16_t v_yleft = vmovq_n_u8((uint8_t)yleft[0]);
+        yleft += left_stride;
+        vst1q_u8(ypred_ptr, v_yleft);
+        ypred_ptr += y_stride;
+      }
+    }
+    break;
+    case TM_PRED:
+    {
+      const uint16x8_t v_ytop_left = vmovq_n_u16((int16_t)yabove_row[-1]);
+      const uint8x16_t v_above = vld1q_u8(yabove_row);
+      for (i = 0; i < 16; ++i) {
+        const uint8x8_t v_yleft = vmov_n_u8((int8_t)yleft[0]);
+        const uint16x8_t a_lo = vaddl_u8(vget_low_u8(v_above), v_yleft);
+        const uint16x8_t a_hi = vaddl_u8(vget_high_u8(v_above), v_yleft);
+        const int16x8_t b_lo = vsubq_s16(vreinterpretq_s16_u16(a_lo),
+                                         vreinterpretq_s16_u16(v_ytop_left));
+        const int16x8_t b_hi = vsubq_s16(vreinterpretq_s16_u16(a_hi),
+                                         vreinterpretq_s16_u16(v_ytop_left));
+        const uint8x8_t pred_lo = vqmovun_s16(b_lo);
+        const uint8x8_t pred_hi = vqmovun_s16(b_hi);
+
+        vst1q_u8(ypred_ptr, vcombine_u8(pred_lo, pred_hi));
+        ypred_ptr += y_stride;
+        yleft += left_stride;
+      }
+    }
+    break;
+  }
+}
+
+void vp8_build_intra_predictors_mbuv_s_neon(MACROBLOCKD *x,
+                                            unsigned char * uabove_row,
+                                            unsigned char * vabove_row,
+                                            unsigned char * uleft,
+                                            unsigned char * vleft,
+                                            int left_stride,
+                                            unsigned char * upred_ptr,
+                                            unsigned char * vpred_ptr,
+                                            int pred_stride) {
+  const int mode = x->mode_info_context->mbmi.uv_mode;
+  int i;
+
+  switch (mode) {
+    case DC_PRED:
+    {
+      int shift = x->up_available + x->left_available;
+      uint8x8_t v_expected_udc = vdup_n_u8(128);
+      uint8x8_t v_expected_vdc = vdup_n_u8(128);
+
+      if (shift) {
+        unsigned int average_u = 0;
+        unsigned int average_v = 0;
+        int expected_udc;
+        int expected_vdc;
+        if (x->up_available) {
+          const uint8x8_t v_uabove = vld1_u8(uabove_row);
+          const uint8x8_t v_vabove = vld1_u8(vabove_row);
+          const uint16x8_t a = vpaddlq_u8(vcombine_u8(v_uabove, v_vabove));
+          const uint32x4_t b = vpaddlq_u16(a);
+          const uint64x2_t c = vpaddlq_u32(b);
+          average_u = vgetq_lane_u32(vreinterpretq_u32_u64((c)), 0);
+          average_v = vgetq_lane_u32(vreinterpretq_u32_u64((c)), 2);
+        }
+        if (x->left_available) {
+          for (i = 0; i < 8; ++i) {
+              average_u += uleft[0];
+              uleft += left_stride;
+              average_v += vleft[0];
+              vleft += left_stride;
+          }
+        }
+        shift += 2;
+        expected_udc = (average_u + (1 << (shift - 1))) >> shift;
+        expected_vdc = (average_v + (1 << (shift - 1))) >> shift;
+        v_expected_udc = vmov_n_u8((uint8_t)expected_udc);
+        v_expected_vdc = vmov_n_u8((uint8_t)expected_vdc);
+      }
+      for (i = 0; i < 8; ++i) {
+        vst1_u8(upred_ptr, v_expected_udc);
+        upred_ptr += pred_stride;
+        vst1_u8(vpred_ptr, v_expected_vdc);
+        vpred_ptr += pred_stride;
+      }
+    }
+    break;
+    case V_PRED:
+    {
+      const uint8x8_t v_uabove = vld1_u8(uabove_row);
+      const uint8x8_t v_vabove = vld1_u8(vabove_row);
+      for (i = 0; i < 8; ++i) {
+        vst1_u8(upred_ptr, v_uabove);
+        upred_ptr += pred_stride;
+        vst1_u8(vpred_ptr, v_vabove);
+        vpred_ptr += pred_stride;
+      }
+    }
+    break;
+    case H_PRED:
+    {
+      for (i = 0; i < 8; ++i) {
+        const uint8x8_t v_uleft = vmov_n_u8((uint8_t)uleft[0]);
+        const uint8x8_t v_vleft = vmov_n_u8((uint8_t)vleft[0]);
+        uleft += left_stride;
+        vleft += left_stride;
+        vst1_u8(upred_ptr, v_uleft);
+        upred_ptr += pred_stride;
+        vst1_u8(vpred_ptr, v_vleft);
+        vpred_ptr += pred_stride;
+      }
+    }
+    break;
+    case TM_PRED:
+    {
+      const uint16x8_t v_utop_left = vmovq_n_u16((int16_t)uabove_row[-1]);
+      const uint16x8_t v_vtop_left = vmovq_n_u16((int16_t)vabove_row[-1]);
+      const uint8x8_t v_uabove = vld1_u8(uabove_row);
+      const uint8x8_t v_vabove = vld1_u8(vabove_row);
+      for (i = 0; i < 8; ++i) {
+        const uint8x8_t v_uleft = vmov_n_u8((int8_t)uleft[0]);
+        const uint8x8_t v_vleft = vmov_n_u8((int8_t)vleft[0]);
+        const uint16x8_t a_u = vaddl_u8(v_uabove, v_uleft);
+        const uint16x8_t a_v = vaddl_u8(v_vabove, v_vleft);
+        const int16x8_t b_u = vsubq_s16(vreinterpretq_s16_u16(a_u),
+                                        vreinterpretq_s16_u16(v_utop_left));
+        const int16x8_t b_v = vsubq_s16(vreinterpretq_s16_u16(a_v),
+                                        vreinterpretq_s16_u16(v_vtop_left));
+        const uint8x8_t pred_u = vqmovun_s16(b_u);
+        const uint8x8_t pred_v = vqmovun_s16(b_v);
+
+        vst1_u8(upred_ptr, pred_u);
+        vst1_u8(vpred_ptr, pred_v);
+        upred_ptr += pred_stride;
+        vpred_ptr += pred_stride;
+        uleft += left_stride;
+        vleft += left_stride;
+      }
+    }
+    break;
+  }
+}
diff --git a/media/libvpx/vp8/common/arm/neon/shortidct4x4llm_neon.c b/media/libvpx/vp8/common/arm/neon/shortidct4x4llm_neon.c
new file mode 100644
index 000000000..373afa6ed
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/shortidct4x4llm_neon.c
@@ -0,0 +1,123 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+static const int16_t cospi8sqrt2minus1 = 20091;
+static const int16_t sinpi8sqrt2       = 35468;
+
+void vp8_short_idct4x4llm_neon(
+        int16_t *input,
+        unsigned char *pred_ptr,
+        int pred_stride,
+        unsigned char *dst_ptr,
+        int dst_stride) {
+    int i;
+    uint32x2_t d6u32 = vdup_n_u32(0);
+    uint8x8_t d1u8;
+    int16x4_t d2, d3, d4, d5, d10, d11, d12, d13;
+    uint16x8_t q1u16;
+    int16x8_t q1s16, q2s16, q3s16, q4s16;
+    int32x2x2_t v2tmp0, v2tmp1;
+    int16x4x2_t v2tmp2, v2tmp3;
+
+    d2 = vld1_s16(input);
+    d3 = vld1_s16(input + 4);
+    d4 = vld1_s16(input + 8);
+    d5 = vld1_s16(input + 12);
+
+    // 1st for loop
+    q1s16 = vcombine_s16(d2, d4);  // Swap d3 d4 here
+    q2s16 = vcombine_s16(d3, d5);
+
+    q3s16 = vqdmulhq_n_s16(q2s16, sinpi8sqrt2);
+    q4s16 = vqdmulhq_n_s16(q2s16, cospi8sqrt2minus1);
+
+    d12 = vqadd_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // a1
+    d13 = vqsub_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // b1
+
+    q3s16 = vshrq_n_s16(q3s16, 1);
+    q4s16 = vshrq_n_s16(q4s16, 1);
+
+    q3s16 = vqaddq_s16(q3s16, q2s16);
+    q4s16 = vqaddq_s16(q4s16, q2s16);
+
+    d10 = vqsub_s16(vget_low_s16(q3s16), vget_high_s16(q4s16));  // c1
+    d11 = vqadd_s16(vget_high_s16(q3s16), vget_low_s16(q4s16));  // d1
+
+    d2 = vqadd_s16(d12, d11);
+    d3 = vqadd_s16(d13, d10);
+    d4 = vqsub_s16(d13, d10);
+    d5 = vqsub_s16(d12, d11);
+
+    v2tmp0 = vtrn_s32(vreinterpret_s32_s16(d2), vreinterpret_s32_s16(d4));
+    v2tmp1 = vtrn_s32(vreinterpret_s32_s16(d3), vreinterpret_s32_s16(d5));
+    v2tmp2 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[0]),
+                      vreinterpret_s16_s32(v2tmp1.val[0]));
+    v2tmp3 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[1]),
+                      vreinterpret_s16_s32(v2tmp1.val[1]));
+
+    // 2nd for loop
+    q1s16 = vcombine_s16(v2tmp2.val[0], v2tmp3.val[0]);
+    q2s16 = vcombine_s16(v2tmp2.val[1], v2tmp3.val[1]);
+
+    q3s16 = vqdmulhq_n_s16(q2s16, sinpi8sqrt2);
+    q4s16 = vqdmulhq_n_s16(q2s16, cospi8sqrt2minus1);
+
+    d12 = vqadd_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // a1
+    d13 = vqsub_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // b1
+
+    q3s16 = vshrq_n_s16(q3s16, 1);
+    q4s16 = vshrq_n_s16(q4s16, 1);
+
+    q3s16 = vqaddq_s16(q3s16, q2s16);
+    q4s16 = vqaddq_s16(q4s16, q2s16);
+
+    d10 = vqsub_s16(vget_low_s16(q3s16), vget_high_s16(q4s16));  // c1
+    d11 = vqadd_s16(vget_high_s16(q3s16), vget_low_s16(q4s16));  // d1
+
+    d2 = vqadd_s16(d12, d11);
+    d3 = vqadd_s16(d13, d10);
+    d4 = vqsub_s16(d13, d10);
+    d5 = vqsub_s16(d12, d11);
+
+    d2 = vrshr_n_s16(d2, 3);
+    d3 = vrshr_n_s16(d3, 3);
+    d4 = vrshr_n_s16(d4, 3);
+    d5 = vrshr_n_s16(d5, 3);
+
+    v2tmp0 = vtrn_s32(vreinterpret_s32_s16(d2), vreinterpret_s32_s16(d4));
+    v2tmp1 = vtrn_s32(vreinterpret_s32_s16(d3), vreinterpret_s32_s16(d5));
+    v2tmp2 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[0]),
+                      vreinterpret_s16_s32(v2tmp1.val[0]));
+    v2tmp3 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[1]),
+                      vreinterpret_s16_s32(v2tmp1.val[1]));
+
+    q1s16 = vcombine_s16(v2tmp2.val[0], v2tmp2.val[1]);
+    q2s16 = vcombine_s16(v2tmp3.val[0], v2tmp3.val[1]);
+
+    // dc_only_idct_add
+    for (i = 0; i < 2; i++, q1s16 = q2s16) {
+        d6u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d6u32, 0);
+        pred_ptr += pred_stride;
+        d6u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d6u32, 1);
+        pred_ptr += pred_stride;
+
+        q1u16 = vaddw_u8(vreinterpretq_u16_s16(q1s16),
+                         vreinterpret_u8_u32(d6u32));
+        d1u8 = vqmovun_s16(vreinterpretq_s16_u16(q1u16));
+
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d1u8), 0);
+        dst_ptr += dst_stride;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d1u8), 1);
+        dst_ptr += dst_stride;
+    }
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/sixtappredict_neon.c b/media/libvpx/vp8/common/arm/neon/sixtappredict_neon.c
new file mode 100644
index 000000000..4c2efc92b
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/sixtappredict_neon.c
@@ -0,0 +1,1754 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "vpx_ports/mem.h"
+
+static const int8_t vp8_sub_pel_filters[8][8] = {
+    {0,  0,  128,   0,   0, 0, 0, 0},  /* note that 1/8 pel positionyys are */
+    {0, -6,  123,  12,  -1, 0, 0, 0},  /*    just as per alpha -0.5 bicubic */
+    {2, -11, 108,  36,  -8, 1, 0, 0},  /* New 1/4 pel 6 tap filter */
+    {0, -9,   93,  50,  -6, 0, 0, 0},
+    {3, -16,  77,  77, -16, 3, 0, 0},  /* New 1/2 pel 6 tap filter */
+    {0, -6,   50,  93,  -9, 0, 0, 0},
+    {1, -8,   36, 108, -11, 2, 0, 0},  /* New 1/4 pel 6 tap filter */
+    {0, -1,   12, 123,  -6, 0, 0, 0},
+};
+
+void vp8_sixtap_predict4x4_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    unsigned char *src;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d18u8, d19u8, d20u8, d21u8;
+    uint8x8_t d23u8, d24u8, d25u8, d26u8, d27u8, d28u8, d29u8, d30u8, d31u8;
+    int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
+    uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16;
+    uint16x8_t q8u16, q9u16, q10u16, q11u16, q12u16;
+    int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16;
+    int16x8_t q8s16, q9s16, q10s16, q11s16, q12s16;
+    uint8x16_t q3u8, q4u8, q5u8, q6u8, q11u8;
+    uint64x2_t q3u64, q4u64, q5u64, q6u64, q9u64, q10u64;
+    uint32x2x2_t d0u32x2, d1u32x2;
+
+    if (xoffset == 0) {  // secondpass_filter4x4_only
+        uint32x2_t d27u32 = vdup_n_u32(0);
+        uint32x2_t d28u32 = vdup_n_u32(0);
+        uint32x2_t d29u32 = vdup_n_u32(0);
+        uint32x2_t d30u32 = vdup_n_u32(0);
+        uint32x2_t d31u32 = vdup_n_u32(0);
+
+        // load second_pass filter
+        dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+        d0s8 = vdup_lane_s8(dtmps8, 0);
+        d1s8 = vdup_lane_s8(dtmps8, 1);
+        d2s8 = vdup_lane_s8(dtmps8, 2);
+        d3s8 = vdup_lane_s8(dtmps8, 3);
+        d4s8 = vdup_lane_s8(dtmps8, 4);
+        d5s8 = vdup_lane_s8(dtmps8, 5);
+        d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+        d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+        d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+        d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+        d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+        d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+        // load src data
+        src = src_ptr - src_pixels_per_line * 2;
+        d27u32 = vld1_lane_u32((const uint32_t *)src, d27u32, 0);
+        src += src_pixels_per_line;
+        d27u32 = vld1_lane_u32((const uint32_t *)src, d27u32, 1);
+        src += src_pixels_per_line;
+        d28u32 = vld1_lane_u32((const uint32_t *)src, d28u32, 0);
+        src += src_pixels_per_line;
+        d28u32 = vld1_lane_u32((const uint32_t *)src, d28u32, 1);
+        src += src_pixels_per_line;
+        d29u32 = vld1_lane_u32((const uint32_t *)src, d29u32, 0);
+        src += src_pixels_per_line;
+        d29u32 = vld1_lane_u32((const uint32_t *)src, d29u32, 1);
+        src += src_pixels_per_line;
+        d30u32 = vld1_lane_u32((const uint32_t *)src, d30u32, 0);
+        src += src_pixels_per_line;
+        d30u32 = vld1_lane_u32((const uint32_t *)src, d30u32, 1);
+        src += src_pixels_per_line;
+        d31u32 = vld1_lane_u32((const uint32_t *)src, d31u32, 0);
+
+        d27u8 = vreinterpret_u8_u32(d27u32);
+        d28u8 = vreinterpret_u8_u32(d28u32);
+        d29u8 = vreinterpret_u8_u32(d29u32);
+        d30u8 = vreinterpret_u8_u32(d30u32);
+        d31u8 = vreinterpret_u8_u32(d31u32);
+
+        d23u8 = vext_u8(d27u8, d28u8, 4);
+        d24u8 = vext_u8(d28u8, d29u8, 4);
+        d25u8 = vext_u8(d29u8, d30u8, 4);
+        d26u8 = vext_u8(d30u8, d31u8, 4);
+
+        q3u16 = vmull_u8(d27u8, d0u8);
+        q4u16 = vmull_u8(d28u8, d0u8);
+        q5u16 = vmull_u8(d25u8, d5u8);
+        q6u16 = vmull_u8(d26u8, d5u8);
+
+        q3u16 = vmlsl_u8(q3u16, d29u8, d4u8);
+        q4u16 = vmlsl_u8(q4u16, d30u8, d4u8);
+        q5u16 = vmlsl_u8(q5u16, d23u8, d1u8);
+        q6u16 = vmlsl_u8(q6u16, d24u8, d1u8);
+
+        q3u16 = vmlal_u8(q3u16, d28u8, d2u8);
+        q4u16 = vmlal_u8(q4u16, d29u8, d2u8);
+        q5u16 = vmlal_u8(q5u16, d24u8, d3u8);
+        q6u16 = vmlal_u8(q6u16, d25u8, d3u8);
+
+        q3s16 = vreinterpretq_s16_u16(q3u16);
+        q4s16 = vreinterpretq_s16_u16(q4u16);
+        q5s16 = vreinterpretq_s16_u16(q5u16);
+        q6s16 = vreinterpretq_s16_u16(q6u16);
+
+        q5s16 = vqaddq_s16(q5s16, q3s16);
+        q6s16 = vqaddq_s16(q6s16, q4s16);
+
+        d3u8 = vqrshrun_n_s16(q5s16, 7);
+        d4u8 = vqrshrun_n_s16(q6s16, 7);
+
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d3u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d3u8), 1);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d4u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d4u8), 1);
+        return;
+    }
+
+    // load first_pass filter
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    // First pass: output_height lines x output_width columns (9x4)
+
+    if (yoffset == 0)  // firstpass_filter4x4_only
+        src = src_ptr - 2;
+    else
+        src = src_ptr - 2 - (src_pixels_per_line * 2);
+
+    q3u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q4u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q5u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q6u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+
+    d18u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
+    d19u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
+    d20u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
+    d21u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
+
+    // vswp here
+    q3u8 = vcombine_u8(vget_low_u8(q3u8), vget_low_u8(q4u8));
+    q5u8 = vcombine_u8(vget_low_u8(q5u8), vget_low_u8(q6u8));
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u8(d18u8),  // d18 d19
+                       vreinterpret_u32_u8(d19u8));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u8(d20u8),  // d20 d21
+                       vreinterpret_u32_u8(d21u8));
+    q7u16 = vmull_u8(vreinterpret_u8_u32(d0u32x2.val[0]), d5u8);
+    q8u16 = vmull_u8(vreinterpret_u8_u32(d1u32x2.val[0]), d5u8);
+
+    // keep original src data in q4 q6
+    q4u64 = vreinterpretq_u64_u8(q3u8);
+    q6u64 = vreinterpretq_u64_u8(q5u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u8(vget_low_u8(q3u8)),  // d6 d7
+                       vreinterpret_u32_u8(vget_high_u8(q3u8)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u8(vget_low_u8(q5u8)),  // d10 d11
+                       vreinterpret_u32_u8(vget_high_u8(q5u8)));
+    q9u64 = vshrq_n_u64(q4u64, 8);
+    q10u64 = vshrq_n_u64(q6u64, 8);
+    q7u16 = vmlal_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d0u8);
+    q8u16 = vmlal_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d0u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q9u64)),   // d18 d19
+                       vreinterpret_u32_u64(vget_high_u64(q9u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q10u64)),  // d20 d211
+                       vreinterpret_u32_u64(vget_high_u64(q10u64)));
+    q3u64 = vshrq_n_u64(q4u64, 32);
+    q5u64 = vshrq_n_u64(q6u64, 32);
+    q7u16 = vmlsl_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d1u8);
+    q8u16 = vmlsl_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d1u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q3u64)),  // d6 d7
+                       vreinterpret_u32_u64(vget_high_u64(q3u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q5u64)),  // d10 d11
+                       vreinterpret_u32_u64(vget_high_u64(q5u64)));
+    q9u64 = vshrq_n_u64(q4u64, 16);
+    q10u64 = vshrq_n_u64(q6u64, 16);
+    q7u16 = vmlsl_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d4u8);
+    q8u16 = vmlsl_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d4u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q9u64)),   // d18 d19
+                       vreinterpret_u32_u64(vget_high_u64(q9u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q10u64)),  // d20 d211
+                       vreinterpret_u32_u64(vget_high_u64(q10u64)));
+    q3u64 = vshrq_n_u64(q4u64, 24);
+    q5u64 = vshrq_n_u64(q6u64, 24);
+    q7u16 = vmlal_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d2u8);
+    q8u16 = vmlal_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d2u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q3u64)),  // d6 d7
+                       vreinterpret_u32_u64(vget_high_u64(q3u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q5u64)),  // d10 d11
+                       vreinterpret_u32_u64(vget_high_u64(q5u64)));
+    q9u16 = vmull_u8(vreinterpret_u8_u32(d0u32x2.val[0]), d3u8);
+    q10u16 = vmull_u8(vreinterpret_u8_u32(d1u32x2.val[0]), d3u8);
+
+    q7s16 = vreinterpretq_s16_u16(q7u16);
+    q8s16 = vreinterpretq_s16_u16(q8u16);
+    q9s16 = vreinterpretq_s16_u16(q9u16);
+    q10s16 = vreinterpretq_s16_u16(q10u16);
+    q7s16 = vqaddq_s16(q7s16, q9s16);
+    q8s16 = vqaddq_s16(q8s16, q10s16);
+
+    d27u8 = vqrshrun_n_s16(q7s16, 7);
+    d28u8 = vqrshrun_n_s16(q8s16, 7);
+
+    if (yoffset == 0) {  // firstpass_filter4x4_only
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d27u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d27u8), 1);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d28u8), 0);
+        dst_ptr += dst_pitch;
+        vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d28u8), 1);
+        return;
+    }
+
+    // First Pass on rest 5-line data
+    q3u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q4u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q5u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q6u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q11u8 = vld1q_u8(src);
+
+    d18u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
+    d19u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
+    d20u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
+    d21u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
+
+    // vswp here
+    q3u8 = vcombine_u8(vget_low_u8(q3u8), vget_low_u8(q4u8));
+    q5u8 = vcombine_u8(vget_low_u8(q5u8), vget_low_u8(q6u8));
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u8(d18u8),  // d18 d19
+                       vreinterpret_u32_u8(d19u8));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u8(d20u8),  // d20 d21
+                       vreinterpret_u32_u8(d21u8));
+    d31u8 = vext_u8(vget_low_u8(q11u8), vget_high_u8(q11u8), 5);
+    q7u16 = vmull_u8(vreinterpret_u8_u32(d0u32x2.val[0]), d5u8);
+    q8u16 = vmull_u8(vreinterpret_u8_u32(d1u32x2.val[0]), d5u8);
+    q12u16 = vmull_u8(d31u8, d5u8);
+
+    q4u64 = vreinterpretq_u64_u8(q3u8);
+    q6u64 = vreinterpretq_u64_u8(q5u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u8(vget_low_u8(q3u8)),  // d6 d7
+                       vreinterpret_u32_u8(vget_high_u8(q3u8)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u8(vget_low_u8(q5u8)),  // d10 d11
+                       vreinterpret_u32_u8(vget_high_u8(q5u8)));
+    q9u64 = vshrq_n_u64(q4u64, 8);
+    q10u64 = vshrq_n_u64(q6u64, 8);
+    q7u16 = vmlal_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d0u8);
+    q8u16 = vmlal_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d0u8);
+    q12u16 = vmlal_u8(q12u16, vget_low_u8(q11u8), d0u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q9u64)),   // d18 d19
+                       vreinterpret_u32_u64(vget_high_u64(q9u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q10u64)),  // d20 d211
+                       vreinterpret_u32_u64(vget_high_u64(q10u64)));
+    q3u64 = vshrq_n_u64(q4u64, 32);
+    q5u64 = vshrq_n_u64(q6u64, 32);
+    d31u8 = vext_u8(vget_low_u8(q11u8), vget_high_u8(q11u8), 1);
+    q7u16 = vmlsl_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d1u8);
+    q8u16 = vmlsl_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d1u8);
+    q12u16 = vmlsl_u8(q12u16, d31u8, d1u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q3u64)),  // d6 d7
+                       vreinterpret_u32_u64(vget_high_u64(q3u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q5u64)),  // d10 d11
+                       vreinterpret_u32_u64(vget_high_u64(q5u64)));
+    q9u64 = vshrq_n_u64(q4u64, 16);
+    q10u64 = vshrq_n_u64(q6u64, 16);
+    d31u8 = vext_u8(vget_low_u8(q11u8), vget_high_u8(q11u8), 4);
+    q7u16 = vmlsl_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d4u8);
+    q8u16 = vmlsl_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d4u8);
+    q12u16 = vmlsl_u8(q12u16, d31u8, d4u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q9u64)),   // d18 d19
+                       vreinterpret_u32_u64(vget_high_u64(q9u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q10u64)),  // d20 d211
+                       vreinterpret_u32_u64(vget_high_u64(q10u64)));
+    q3u64 = vshrq_n_u64(q4u64, 24);
+    q5u64 = vshrq_n_u64(q6u64, 24);
+    d31u8 = vext_u8(vget_low_u8(q11u8), vget_high_u8(q11u8), 2);
+    q7u16 = vmlal_u8(q7u16, vreinterpret_u8_u32(d0u32x2.val[0]), d2u8);
+    q8u16 = vmlal_u8(q8u16, vreinterpret_u8_u32(d1u32x2.val[0]), d2u8);
+    q12u16 = vmlal_u8(q12u16, d31u8, d2u8);
+
+    d0u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q3u64)),  // d6 d7
+                       vreinterpret_u32_u64(vget_high_u64(q3u64)));
+    d1u32x2 = vzip_u32(vreinterpret_u32_u64(vget_low_u64(q5u64)),  // d10 d11
+                       vreinterpret_u32_u64(vget_high_u64(q5u64)));
+    d31u8 = vext_u8(vget_low_u8(q11u8), vget_high_u8(q11u8), 3);
+    q9u16 = vmull_u8(vreinterpret_u8_u32(d0u32x2.val[0]), d3u8);
+    q10u16 = vmull_u8(vreinterpret_u8_u32(d1u32x2.val[0]), d3u8);
+    q11u16 = vmull_u8(d31u8, d3u8);
+
+    q7s16 = vreinterpretq_s16_u16(q7u16);
+    q8s16 = vreinterpretq_s16_u16(q8u16);
+    q9s16 = vreinterpretq_s16_u16(q9u16);
+    q10s16 = vreinterpretq_s16_u16(q10u16);
+    q11s16 = vreinterpretq_s16_u16(q11u16);
+    q12s16 = vreinterpretq_s16_u16(q12u16);
+    q7s16 = vqaddq_s16(q7s16, q9s16);
+    q8s16 = vqaddq_s16(q8s16, q10s16);
+    q12s16 = vqaddq_s16(q12s16, q11s16);
+
+    d29u8 = vqrshrun_n_s16(q7s16, 7);
+    d30u8 = vqrshrun_n_s16(q8s16, 7);
+    d31u8 = vqrshrun_n_s16(q12s16, 7);
+
+    // Second pass: 4x4
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    d23u8 = vext_u8(d27u8, d28u8, 4);
+    d24u8 = vext_u8(d28u8, d29u8, 4);
+    d25u8 = vext_u8(d29u8, d30u8, 4);
+    d26u8 = vext_u8(d30u8, d31u8, 4);
+
+    q3u16 = vmull_u8(d27u8, d0u8);
+    q4u16 = vmull_u8(d28u8, d0u8);
+    q5u16 = vmull_u8(d25u8, d5u8);
+    q6u16 = vmull_u8(d26u8, d5u8);
+
+    q3u16 = vmlsl_u8(q3u16, d29u8, d4u8);
+    q4u16 = vmlsl_u8(q4u16, d30u8, d4u8);
+    q5u16 = vmlsl_u8(q5u16, d23u8, d1u8);
+    q6u16 = vmlsl_u8(q6u16, d24u8, d1u8);
+
+    q3u16 = vmlal_u8(q3u16, d28u8, d2u8);
+    q4u16 = vmlal_u8(q4u16, d29u8, d2u8);
+    q5u16 = vmlal_u8(q5u16, d24u8, d3u8);
+    q6u16 = vmlal_u8(q6u16, d25u8, d3u8);
+
+    q3s16 = vreinterpretq_s16_u16(q3u16);
+    q4s16 = vreinterpretq_s16_u16(q4u16);
+    q5s16 = vreinterpretq_s16_u16(q5u16);
+    q6s16 = vreinterpretq_s16_u16(q6u16);
+
+    q5s16 = vqaddq_s16(q5s16, q3s16);
+    q6s16 = vqaddq_s16(q6s16, q4s16);
+
+    d3u8 = vqrshrun_n_s16(q5s16, 7);
+    d4u8 = vqrshrun_n_s16(q6s16, 7);
+
+    vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d3u8), 0);
+    dst_ptr += dst_pitch;
+    vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d3u8), 1);
+    dst_ptr += dst_pitch;
+    vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d4u8), 0);
+    dst_ptr += dst_pitch;
+    vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d4u8), 1);
+    return;
+}
+
+void vp8_sixtap_predict8x4_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    unsigned char *src;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
+    uint8x8_t d22u8, d23u8, d24u8, d25u8, d26u8;
+    uint8x8_t d27u8, d28u8, d29u8, d30u8, d31u8;
+    int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
+    uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16;
+    uint16x8_t q8u16, q9u16, q10u16, q11u16, q12u16;
+    int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16;
+    int16x8_t q8s16, q9s16, q10s16, q11s16, q12s16;
+    uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8;
+
+    if (xoffset == 0) {  // secondpass_filter8x4_only
+        // load second_pass filter
+        dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+        d0s8 = vdup_lane_s8(dtmps8, 0);
+        d1s8 = vdup_lane_s8(dtmps8, 1);
+        d2s8 = vdup_lane_s8(dtmps8, 2);
+        d3s8 = vdup_lane_s8(dtmps8, 3);
+        d4s8 = vdup_lane_s8(dtmps8, 4);
+        d5s8 = vdup_lane_s8(dtmps8, 5);
+        d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+        d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+        d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+        d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+        d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+        d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+        // load src data
+        src = src_ptr - src_pixels_per_line * 2;
+        d22u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d23u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d24u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d25u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d26u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d27u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d28u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d29u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d30u8 = vld1_u8(src);
+
+        q3u16 = vmull_u8(d22u8, d0u8);
+        q4u16 = vmull_u8(d23u8, d0u8);
+        q5u16 = vmull_u8(d24u8, d0u8);
+        q6u16 = vmull_u8(d25u8, d0u8);
+
+        q3u16 = vmlsl_u8(q3u16, d23u8, d1u8);
+        q4u16 = vmlsl_u8(q4u16, d24u8, d1u8);
+        q5u16 = vmlsl_u8(q5u16, d25u8, d1u8);
+        q6u16 = vmlsl_u8(q6u16, d26u8, d1u8);
+
+        q3u16 = vmlsl_u8(q3u16, d26u8, d4u8);
+        q4u16 = vmlsl_u8(q4u16, d27u8, d4u8);
+        q5u16 = vmlsl_u8(q5u16, d28u8, d4u8);
+        q6u16 = vmlsl_u8(q6u16, d29u8, d4u8);
+
+        q3u16 = vmlal_u8(q3u16, d24u8, d2u8);
+        q4u16 = vmlal_u8(q4u16, d25u8, d2u8);
+        q5u16 = vmlal_u8(q5u16, d26u8, d2u8);
+        q6u16 = vmlal_u8(q6u16, d27u8, d2u8);
+
+        q3u16 = vmlal_u8(q3u16, d27u8, d5u8);
+        q4u16 = vmlal_u8(q4u16, d28u8, d5u8);
+        q5u16 = vmlal_u8(q5u16, d29u8, d5u8);
+        q6u16 = vmlal_u8(q6u16, d30u8, d5u8);
+
+        q7u16 = vmull_u8(d25u8, d3u8);
+        q8u16 = vmull_u8(d26u8, d3u8);
+        q9u16 = vmull_u8(d27u8, d3u8);
+        q10u16 = vmull_u8(d28u8, d3u8);
+
+        q3s16 = vreinterpretq_s16_u16(q3u16);
+        q4s16 = vreinterpretq_s16_u16(q4u16);
+        q5s16 = vreinterpretq_s16_u16(q5u16);
+        q6s16 = vreinterpretq_s16_u16(q6u16);
+        q7s16 = vreinterpretq_s16_u16(q7u16);
+        q8s16 = vreinterpretq_s16_u16(q8u16);
+        q9s16 = vreinterpretq_s16_u16(q9u16);
+        q10s16 = vreinterpretq_s16_u16(q10u16);
+
+        q7s16 = vqaddq_s16(q7s16, q3s16);
+        q8s16 = vqaddq_s16(q8s16, q4s16);
+        q9s16 = vqaddq_s16(q9s16, q5s16);
+        q10s16 = vqaddq_s16(q10s16, q6s16);
+
+        d6u8 = vqrshrun_n_s16(q7s16, 7);
+        d7u8 = vqrshrun_n_s16(q8s16, 7);
+        d8u8 = vqrshrun_n_s16(q9s16, 7);
+        d9u8 = vqrshrun_n_s16(q10s16, 7);
+
+        vst1_u8(dst_ptr, d6u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d7u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d8u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d9u8);
+        return;
+    }
+
+    // load first_pass filter
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    // First pass: output_height lines x output_width columns (9x4)
+    if (yoffset == 0)  // firstpass_filter4x4_only
+        src = src_ptr - 2;
+    else
+        src = src_ptr - 2 - (src_pixels_per_line * 2);
+    q3u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q4u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q5u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q6u8 = vld1q_u8(src);
+
+    q7u16  = vmull_u8(vget_low_u8(q3u8), d0u8);
+    q8u16  = vmull_u8(vget_low_u8(q4u8), d0u8);
+    q9u16  = vmull_u8(vget_low_u8(q5u8), d0u8);
+    q10u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
+
+    d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+    d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+    d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
+    d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
+
+    q7u16  = vmlsl_u8(q7u16, d28u8, d1u8);
+    q8u16  = vmlsl_u8(q8u16, d29u8, d1u8);
+    q9u16  = vmlsl_u8(q9u16, d30u8, d1u8);
+    q10u16 = vmlsl_u8(q10u16, d31u8, d1u8);
+
+    d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
+    d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
+    d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
+    d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
+
+    q7u16  = vmlsl_u8(q7u16, d28u8, d4u8);
+    q8u16  = vmlsl_u8(q8u16, d29u8, d4u8);
+    q9u16  = vmlsl_u8(q9u16, d30u8, d4u8);
+    q10u16 = vmlsl_u8(q10u16, d31u8, d4u8);
+
+    d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
+    d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
+    d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
+    d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
+
+    q7u16  = vmlal_u8(q7u16, d28u8, d2u8);
+    q8u16  = vmlal_u8(q8u16, d29u8, d2u8);
+    q9u16  = vmlal_u8(q9u16, d30u8, d2u8);
+    q10u16 = vmlal_u8(q10u16, d31u8, d2u8);
+
+    d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
+    d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
+    d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
+    d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
+
+    q7u16 = vmlal_u8(q7u16, d28u8, d5u8);
+    q8u16 = vmlal_u8(q8u16, d29u8, d5u8);
+    q9u16 = vmlal_u8(q9u16, d30u8, d5u8);
+    q10u16 = vmlal_u8(q10u16, d31u8, d5u8);
+
+    d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
+    d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
+    d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
+    d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
+
+    q3u16 = vmull_u8(d28u8, d3u8);
+    q4u16 = vmull_u8(d29u8, d3u8);
+    q5u16 = vmull_u8(d30u8, d3u8);
+    q6u16 = vmull_u8(d31u8, d3u8);
+
+    q3s16 = vreinterpretq_s16_u16(q3u16);
+    q4s16 = vreinterpretq_s16_u16(q4u16);
+    q5s16 = vreinterpretq_s16_u16(q5u16);
+    q6s16 = vreinterpretq_s16_u16(q6u16);
+    q7s16 = vreinterpretq_s16_u16(q7u16);
+    q8s16 = vreinterpretq_s16_u16(q8u16);
+    q9s16 = vreinterpretq_s16_u16(q9u16);
+    q10s16 = vreinterpretq_s16_u16(q10u16);
+
+    q7s16 = vqaddq_s16(q7s16, q3s16);
+    q8s16 = vqaddq_s16(q8s16, q4s16);
+    q9s16 = vqaddq_s16(q9s16, q5s16);
+    q10s16 = vqaddq_s16(q10s16, q6s16);
+
+    d22u8 = vqrshrun_n_s16(q7s16, 7);
+    d23u8 = vqrshrun_n_s16(q8s16, 7);
+    d24u8 = vqrshrun_n_s16(q9s16, 7);
+    d25u8 = vqrshrun_n_s16(q10s16, 7);
+
+    if (yoffset == 0) {  // firstpass_filter8x4_only
+        vst1_u8(dst_ptr, d22u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d23u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d24u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d25u8);
+        return;
+    }
+
+    // First Pass on rest 5-line data
+    src += src_pixels_per_line;
+    q3u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q4u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q5u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q6u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q7u8 = vld1q_u8(src);
+
+    q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
+    q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
+    q10u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
+    q11u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
+    q12u16 = vmull_u8(vget_low_u8(q7u8), d0u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 1);
+
+    q8u16  = vmlsl_u8(q8u16, d27u8, d1u8);
+    q9u16  = vmlsl_u8(q9u16, d28u8, d1u8);
+    q10u16 = vmlsl_u8(q10u16, d29u8, d1u8);
+    q11u16 = vmlsl_u8(q11u16, d30u8, d1u8);
+    q12u16 = vmlsl_u8(q12u16, d31u8, d1u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 4);
+
+    q8u16  = vmlsl_u8(q8u16, d27u8, d4u8);
+    q9u16  = vmlsl_u8(q9u16, d28u8, d4u8);
+    q10u16 = vmlsl_u8(q10u16, d29u8, d4u8);
+    q11u16 = vmlsl_u8(q11u16, d30u8, d4u8);
+    q12u16 = vmlsl_u8(q12u16, d31u8, d4u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 2);
+
+    q8u16  = vmlal_u8(q8u16, d27u8, d2u8);
+    q9u16  = vmlal_u8(q9u16, d28u8, d2u8);
+    q10u16 = vmlal_u8(q10u16, d29u8, d2u8);
+    q11u16 = vmlal_u8(q11u16, d30u8, d2u8);
+    q12u16 = vmlal_u8(q12u16, d31u8, d2u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 5);
+
+    q8u16  = vmlal_u8(q8u16, d27u8, d5u8);
+    q9u16  = vmlal_u8(q9u16, d28u8, d5u8);
+    q10u16 = vmlal_u8(q10u16, d29u8, d5u8);
+    q11u16 = vmlal_u8(q11u16, d30u8, d5u8);
+    q12u16 = vmlal_u8(q12u16, d31u8, d5u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 3);
+
+    q3u16 = vmull_u8(d27u8, d3u8);
+    q4u16 = vmull_u8(d28u8, d3u8);
+    q5u16 = vmull_u8(d29u8, d3u8);
+    q6u16 = vmull_u8(d30u8, d3u8);
+    q7u16 = vmull_u8(d31u8, d3u8);
+
+    q3s16 = vreinterpretq_s16_u16(q3u16);
+    q4s16 = vreinterpretq_s16_u16(q4u16);
+    q5s16 = vreinterpretq_s16_u16(q5u16);
+    q6s16 = vreinterpretq_s16_u16(q6u16);
+    q7s16 = vreinterpretq_s16_u16(q7u16);
+    q8s16 = vreinterpretq_s16_u16(q8u16);
+    q9s16 = vreinterpretq_s16_u16(q9u16);
+    q10s16 = vreinterpretq_s16_u16(q10u16);
+    q11s16 = vreinterpretq_s16_u16(q11u16);
+    q12s16 = vreinterpretq_s16_u16(q12u16);
+
+    q8s16 = vqaddq_s16(q8s16, q3s16);
+    q9s16 = vqaddq_s16(q9s16, q4s16);
+    q10s16 = vqaddq_s16(q10s16, q5s16);
+    q11s16 = vqaddq_s16(q11s16, q6s16);
+    q12s16 = vqaddq_s16(q12s16, q7s16);
+
+    d26u8 = vqrshrun_n_s16(q8s16, 7);
+    d27u8 = vqrshrun_n_s16(q9s16, 7);
+    d28u8 = vqrshrun_n_s16(q10s16, 7);
+    d29u8 = vqrshrun_n_s16(q11s16, 7);
+    d30u8 = vqrshrun_n_s16(q12s16, 7);
+
+    // Second pass: 8x4
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    q3u16 = vmull_u8(d22u8, d0u8);
+    q4u16 = vmull_u8(d23u8, d0u8);
+    q5u16 = vmull_u8(d24u8, d0u8);
+    q6u16 = vmull_u8(d25u8, d0u8);
+
+    q3u16 = vmlsl_u8(q3u16, d23u8, d1u8);
+    q4u16 = vmlsl_u8(q4u16, d24u8, d1u8);
+    q5u16 = vmlsl_u8(q5u16, d25u8, d1u8);
+    q6u16 = vmlsl_u8(q6u16, d26u8, d1u8);
+
+    q3u16 = vmlsl_u8(q3u16, d26u8, d4u8);
+    q4u16 = vmlsl_u8(q4u16, d27u8, d4u8);
+    q5u16 = vmlsl_u8(q5u16, d28u8, d4u8);
+    q6u16 = vmlsl_u8(q6u16, d29u8, d4u8);
+
+    q3u16 = vmlal_u8(q3u16, d24u8, d2u8);
+    q4u16 = vmlal_u8(q4u16, d25u8, d2u8);
+    q5u16 = vmlal_u8(q5u16, d26u8, d2u8);
+    q6u16 = vmlal_u8(q6u16, d27u8, d2u8);
+
+    q3u16 = vmlal_u8(q3u16, d27u8, d5u8);
+    q4u16 = vmlal_u8(q4u16, d28u8, d5u8);
+    q5u16 = vmlal_u8(q5u16, d29u8, d5u8);
+    q6u16 = vmlal_u8(q6u16, d30u8, d5u8);
+
+    q7u16 = vmull_u8(d25u8, d3u8);
+    q8u16 = vmull_u8(d26u8, d3u8);
+    q9u16 = vmull_u8(d27u8, d3u8);
+    q10u16 = vmull_u8(d28u8, d3u8);
+
+    q3s16 = vreinterpretq_s16_u16(q3u16);
+    q4s16 = vreinterpretq_s16_u16(q4u16);
+    q5s16 = vreinterpretq_s16_u16(q5u16);
+    q6s16 = vreinterpretq_s16_u16(q6u16);
+    q7s16 = vreinterpretq_s16_u16(q7u16);
+    q8s16 = vreinterpretq_s16_u16(q8u16);
+    q9s16 = vreinterpretq_s16_u16(q9u16);
+    q10s16 = vreinterpretq_s16_u16(q10u16);
+
+    q7s16 = vqaddq_s16(q7s16, q3s16);
+    q8s16 = vqaddq_s16(q8s16, q4s16);
+    q9s16 = vqaddq_s16(q9s16, q5s16);
+    q10s16 = vqaddq_s16(q10s16, q6s16);
+
+    d6u8 = vqrshrun_n_s16(q7s16, 7);
+    d7u8 = vqrshrun_n_s16(q8s16, 7);
+    d8u8 = vqrshrun_n_s16(q9s16, 7);
+    d9u8 = vqrshrun_n_s16(q10s16, 7);
+
+    vst1_u8(dst_ptr, d6u8);
+    dst_ptr += dst_pitch;
+    vst1_u8(dst_ptr, d7u8);
+    dst_ptr += dst_pitch;
+    vst1_u8(dst_ptr, d8u8);
+    dst_ptr += dst_pitch;
+    vst1_u8(dst_ptr, d9u8);
+    return;
+}
+
+void vp8_sixtap_predict8x8_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    unsigned char *src, *tmpp;
+    unsigned char tmp[64];
+    int i;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
+    uint8x8_t d18u8, d19u8, d20u8, d21u8, d22u8, d23u8, d24u8, d25u8;
+    uint8x8_t d26u8, d27u8, d28u8, d29u8, d30u8, d31u8;
+    int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
+    uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16;
+    uint16x8_t q8u16, q9u16, q10u16, q11u16, q12u16;
+    int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16;
+    int16x8_t q8s16, q9s16, q10s16, q11s16, q12s16;
+    uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8, q9u8, q10u8, q11u8, q12u8;
+
+    if (xoffset == 0) {  // secondpass_filter8x8_only
+        // load second_pass filter
+        dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+        d0s8 = vdup_lane_s8(dtmps8, 0);
+        d1s8 = vdup_lane_s8(dtmps8, 1);
+        d2s8 = vdup_lane_s8(dtmps8, 2);
+        d3s8 = vdup_lane_s8(dtmps8, 3);
+        d4s8 = vdup_lane_s8(dtmps8, 4);
+        d5s8 = vdup_lane_s8(dtmps8, 5);
+        d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+        d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+        d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+        d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+        d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+        d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+        // load src data
+        src = src_ptr - src_pixels_per_line * 2;
+        d18u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d19u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d20u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d21u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d22u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d23u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d24u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d25u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d26u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d27u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d28u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d29u8 = vld1_u8(src);
+        src += src_pixels_per_line;
+        d30u8 = vld1_u8(src);
+
+        for (i = 2; i > 0; i--) {
+            q3u16 = vmull_u8(d18u8, d0u8);
+            q4u16 = vmull_u8(d19u8, d0u8);
+            q5u16 = vmull_u8(d20u8, d0u8);
+            q6u16 = vmull_u8(d21u8, d0u8);
+
+            q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
+            q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
+            q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
+            q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
+
+            q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
+            q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
+            q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
+            q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
+
+            q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
+            q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
+            q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
+            q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
+
+            q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
+            q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
+            q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
+            q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
+
+            q7u16 = vmull_u8(d21u8, d3u8);
+            q8u16 = vmull_u8(d22u8, d3u8);
+            q9u16 = vmull_u8(d23u8, d3u8);
+            q10u16 = vmull_u8(d24u8, d3u8);
+
+            q3s16 = vreinterpretq_s16_u16(q3u16);
+            q4s16 = vreinterpretq_s16_u16(q4u16);
+            q5s16 = vreinterpretq_s16_u16(q5u16);
+            q6s16 = vreinterpretq_s16_u16(q6u16);
+            q7s16 = vreinterpretq_s16_u16(q7u16);
+            q8s16 = vreinterpretq_s16_u16(q8u16);
+            q9s16 = vreinterpretq_s16_u16(q9u16);
+            q10s16 = vreinterpretq_s16_u16(q10u16);
+
+            q7s16 = vqaddq_s16(q7s16, q3s16);
+            q8s16 = vqaddq_s16(q8s16, q4s16);
+            q9s16 = vqaddq_s16(q9s16, q5s16);
+            q10s16 = vqaddq_s16(q10s16, q6s16);
+
+            d6u8 = vqrshrun_n_s16(q7s16, 7);
+            d7u8 = vqrshrun_n_s16(q8s16, 7);
+            d8u8 = vqrshrun_n_s16(q9s16, 7);
+            d9u8 = vqrshrun_n_s16(q10s16, 7);
+
+            d18u8 = d22u8;
+            d19u8 = d23u8;
+            d20u8 = d24u8;
+            d21u8 = d25u8;
+            d22u8 = d26u8;
+            d23u8 = d27u8;
+            d24u8 = d28u8;
+            d25u8 = d29u8;
+            d26u8 = d30u8;
+
+            vst1_u8(dst_ptr, d6u8);
+            dst_ptr += dst_pitch;
+            vst1_u8(dst_ptr, d7u8);
+            dst_ptr += dst_pitch;
+            vst1_u8(dst_ptr, d8u8);
+            dst_ptr += dst_pitch;
+            vst1_u8(dst_ptr, d9u8);
+            dst_ptr += dst_pitch;
+        }
+        return;
+    }
+
+    // load first_pass filter
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    // First pass: output_height lines x output_width columns (9x4)
+    if (yoffset == 0)  // firstpass_filter4x4_only
+        src = src_ptr - 2;
+    else
+        src = src_ptr - 2 - (src_pixels_per_line * 2);
+
+    tmpp = tmp;
+    for (i = 2; i > 0; i--) {
+        q3u8 = vld1q_u8(src);
+        src += src_pixels_per_line;
+        q4u8 = vld1q_u8(src);
+        src += src_pixels_per_line;
+        q5u8 = vld1q_u8(src);
+        src += src_pixels_per_line;
+        q6u8 = vld1q_u8(src);
+        src += src_pixels_per_line;
+
+        __builtin_prefetch(src);
+        __builtin_prefetch(src + src_pixels_per_line);
+        __builtin_prefetch(src + src_pixels_per_line * 2);
+
+        q7u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
+        q8u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
+        q9u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
+        q10u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
+
+        d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+        d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+        d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
+        d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
+
+        q7u16 = vmlsl_u8(q7u16, d28u8, d1u8);
+        q8u16 = vmlsl_u8(q8u16, d29u8, d1u8);
+        q9u16 = vmlsl_u8(q9u16, d30u8, d1u8);
+        q10u16 = vmlsl_u8(q10u16, d31u8, d1u8);
+
+        d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
+        d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
+        d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
+        d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
+
+        q7u16 = vmlsl_u8(q7u16, d28u8, d4u8);
+        q8u16 = vmlsl_u8(q8u16, d29u8, d4u8);
+        q9u16 = vmlsl_u8(q9u16, d30u8, d4u8);
+        q10u16 = vmlsl_u8(q10u16, d31u8, d4u8);
+
+        d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
+        d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
+        d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
+        d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
+
+        q7u16 = vmlal_u8(q7u16, d28u8, d2u8);
+        q8u16 = vmlal_u8(q8u16, d29u8, d2u8);
+        q9u16 = vmlal_u8(q9u16, d30u8, d2u8);
+        q10u16 = vmlal_u8(q10u16, d31u8, d2u8);
+
+        d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
+        d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
+        d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
+        d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
+
+        q7u16 = vmlal_u8(q7u16, d28u8, d5u8);
+        q8u16 = vmlal_u8(q8u16, d29u8, d5u8);
+        q9u16 = vmlal_u8(q9u16, d30u8, d5u8);
+        q10u16 = vmlal_u8(q10u16, d31u8, d5u8);
+
+        d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
+        d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
+        d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
+        d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
+
+        q3u16 = vmull_u8(d28u8, d3u8);
+        q4u16 = vmull_u8(d29u8, d3u8);
+        q5u16 = vmull_u8(d30u8, d3u8);
+        q6u16 = vmull_u8(d31u8, d3u8);
+
+        q3s16 = vreinterpretq_s16_u16(q3u16);
+        q4s16 = vreinterpretq_s16_u16(q4u16);
+        q5s16 = vreinterpretq_s16_u16(q5u16);
+        q6s16 = vreinterpretq_s16_u16(q6u16);
+        q7s16 = vreinterpretq_s16_u16(q7u16);
+        q8s16 = vreinterpretq_s16_u16(q8u16);
+        q9s16 = vreinterpretq_s16_u16(q9u16);
+        q10s16 = vreinterpretq_s16_u16(q10u16);
+
+        q7s16 = vqaddq_s16(q7s16, q3s16);
+        q8s16 = vqaddq_s16(q8s16, q4s16);
+        q9s16 = vqaddq_s16(q9s16, q5s16);
+        q10s16 = vqaddq_s16(q10s16, q6s16);
+
+        d22u8 = vqrshrun_n_s16(q7s16, 7);
+        d23u8 = vqrshrun_n_s16(q8s16, 7);
+        d24u8 = vqrshrun_n_s16(q9s16, 7);
+        d25u8 = vqrshrun_n_s16(q10s16, 7);
+
+        if (yoffset == 0) {  // firstpass_filter8x4_only
+            vst1_u8(dst_ptr, d22u8);
+            dst_ptr += dst_pitch;
+            vst1_u8(dst_ptr, d23u8);
+            dst_ptr += dst_pitch;
+            vst1_u8(dst_ptr, d24u8);
+            dst_ptr += dst_pitch;
+            vst1_u8(dst_ptr, d25u8);
+            dst_ptr += dst_pitch;
+        } else {
+            vst1_u8(tmpp, d22u8);
+            tmpp += 8;
+            vst1_u8(tmpp, d23u8);
+            tmpp += 8;
+            vst1_u8(tmpp, d24u8);
+            tmpp += 8;
+            vst1_u8(tmpp, d25u8);
+            tmpp += 8;
+        }
+    }
+    if (yoffset == 0)
+        return;
+
+    // First Pass on rest 5-line data
+    q3u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q4u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q5u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q6u8 = vld1q_u8(src);
+    src += src_pixels_per_line;
+    q7u8 = vld1q_u8(src);
+
+    q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
+    q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
+    q10u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
+    q11u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
+    q12u16 = vmull_u8(vget_low_u8(q7u8), d0u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 1);
+
+    q8u16 = vmlsl_u8(q8u16, d27u8, d1u8);
+    q9u16 = vmlsl_u8(q9u16, d28u8, d1u8);
+    q10u16 = vmlsl_u8(q10u16, d29u8, d1u8);
+    q11u16 = vmlsl_u8(q11u16, d30u8, d1u8);
+    q12u16 = vmlsl_u8(q12u16, d31u8, d1u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 4);
+
+    q8u16 = vmlsl_u8(q8u16, d27u8, d4u8);
+    q9u16 = vmlsl_u8(q9u16, d28u8, d4u8);
+    q10u16 = vmlsl_u8(q10u16, d29u8, d4u8);
+    q11u16 = vmlsl_u8(q11u16, d30u8, d4u8);
+    q12u16 = vmlsl_u8(q12u16, d31u8, d4u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 2);
+
+    q8u16 = vmlal_u8(q8u16, d27u8, d2u8);
+    q9u16 = vmlal_u8(q9u16, d28u8, d2u8);
+    q10u16 = vmlal_u8(q10u16, d29u8, d2u8);
+    q11u16 = vmlal_u8(q11u16, d30u8, d2u8);
+    q12u16 = vmlal_u8(q12u16, d31u8, d2u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 5);
+
+    q8u16 = vmlal_u8(q8u16, d27u8, d5u8);
+    q9u16 = vmlal_u8(q9u16, d28u8, d5u8);
+    q10u16 = vmlal_u8(q10u16, d29u8, d5u8);
+    q11u16 = vmlal_u8(q11u16, d30u8, d5u8);
+    q12u16 = vmlal_u8(q12u16, d31u8, d5u8);
+
+    d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
+    d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
+    d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
+    d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
+    d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 3);
+
+    q3u16 = vmull_u8(d27u8, d3u8);
+    q4u16 = vmull_u8(d28u8, d3u8);
+    q5u16 = vmull_u8(d29u8, d3u8);
+    q6u16 = vmull_u8(d30u8, d3u8);
+    q7u16 = vmull_u8(d31u8, d3u8);
+
+    q3s16 = vreinterpretq_s16_u16(q3u16);
+    q4s16 = vreinterpretq_s16_u16(q4u16);
+    q5s16 = vreinterpretq_s16_u16(q5u16);
+    q6s16 = vreinterpretq_s16_u16(q6u16);
+    q7s16 = vreinterpretq_s16_u16(q7u16);
+    q8s16 = vreinterpretq_s16_u16(q8u16);
+    q9s16 = vreinterpretq_s16_u16(q9u16);
+    q10s16 = vreinterpretq_s16_u16(q10u16);
+    q11s16 = vreinterpretq_s16_u16(q11u16);
+    q12s16 = vreinterpretq_s16_u16(q12u16);
+
+    q8s16 = vqaddq_s16(q8s16, q3s16);
+    q9s16 = vqaddq_s16(q9s16, q4s16);
+    q10s16 = vqaddq_s16(q10s16, q5s16);
+    q11s16 = vqaddq_s16(q11s16, q6s16);
+    q12s16 = vqaddq_s16(q12s16, q7s16);
+
+    d26u8 = vqrshrun_n_s16(q8s16, 7);
+    d27u8 = vqrshrun_n_s16(q9s16, 7);
+    d28u8 = vqrshrun_n_s16(q10s16, 7);
+    d29u8 = vqrshrun_n_s16(q11s16, 7);
+    d30u8 = vqrshrun_n_s16(q12s16, 7);
+
+    // Second pass: 8x8
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    tmpp = tmp;
+    q9u8 = vld1q_u8(tmpp);
+    tmpp += 16;
+    q10u8 = vld1q_u8(tmpp);
+    tmpp += 16;
+    q11u8 = vld1q_u8(tmpp);
+    tmpp += 16;
+    q12u8 = vld1q_u8(tmpp);
+
+    d18u8 = vget_low_u8(q9u8);
+    d19u8 = vget_high_u8(q9u8);
+    d20u8 = vget_low_u8(q10u8);
+    d21u8 = vget_high_u8(q10u8);
+    d22u8 = vget_low_u8(q11u8);
+    d23u8 = vget_high_u8(q11u8);
+    d24u8 = vget_low_u8(q12u8);
+    d25u8 = vget_high_u8(q12u8);
+
+    for (i = 2; i > 0; i--) {
+        q3u16 = vmull_u8(d18u8, d0u8);
+        q4u16 = vmull_u8(d19u8, d0u8);
+        q5u16 = vmull_u8(d20u8, d0u8);
+        q6u16 = vmull_u8(d21u8, d0u8);
+
+        q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
+        q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
+        q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
+        q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
+
+        q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
+        q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
+        q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
+        q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
+
+        q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
+        q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
+        q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
+        q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
+
+        q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
+        q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
+        q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
+        q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
+
+        q7u16 = vmull_u8(d21u8, d3u8);
+        q8u16 = vmull_u8(d22u8, d3u8);
+        q9u16 = vmull_u8(d23u8, d3u8);
+        q10u16 = vmull_u8(d24u8, d3u8);
+
+        q3s16 = vreinterpretq_s16_u16(q3u16);
+        q4s16 = vreinterpretq_s16_u16(q4u16);
+        q5s16 = vreinterpretq_s16_u16(q5u16);
+        q6s16 = vreinterpretq_s16_u16(q6u16);
+        q7s16 = vreinterpretq_s16_u16(q7u16);
+        q8s16 = vreinterpretq_s16_u16(q8u16);
+        q9s16 = vreinterpretq_s16_u16(q9u16);
+        q10s16 = vreinterpretq_s16_u16(q10u16);
+
+        q7s16 = vqaddq_s16(q7s16, q3s16);
+        q8s16 = vqaddq_s16(q8s16, q4s16);
+        q9s16 = vqaddq_s16(q9s16, q5s16);
+        q10s16 = vqaddq_s16(q10s16, q6s16);
+
+        d6u8 = vqrshrun_n_s16(q7s16, 7);
+        d7u8 = vqrshrun_n_s16(q8s16, 7);
+        d8u8 = vqrshrun_n_s16(q9s16, 7);
+        d9u8 = vqrshrun_n_s16(q10s16, 7);
+
+        d18u8 = d22u8;
+        d19u8 = d23u8;
+        d20u8 = d24u8;
+        d21u8 = d25u8;
+        d22u8 = d26u8;
+        d23u8 = d27u8;
+        d24u8 = d28u8;
+        d25u8 = d29u8;
+        d26u8 = d30u8;
+
+        vst1_u8(dst_ptr, d6u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d7u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d8u8);
+        dst_ptr += dst_pitch;
+        vst1_u8(dst_ptr, d9u8);
+        dst_ptr += dst_pitch;
+    }
+    return;
+}
+
+void vp8_sixtap_predict16x16_neon(
+        unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        unsigned char *dst_ptr,
+        int dst_pitch) {
+    unsigned char *src, *src_tmp, *dst, *tmpp;
+    unsigned char tmp[336];
+    int i, j;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
+    uint8x8_t d10u8, d11u8, d12u8, d13u8, d14u8, d15u8, d18u8, d19u8;
+    uint8x8_t d20u8, d21u8, d22u8, d23u8, d24u8, d25u8, d26u8, d27u8;
+    uint8x8_t d28u8, d29u8, d30u8, d31u8;
+    int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
+    uint8x16_t q3u8, q4u8;
+    uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16, q8u16, q9u16, q10u16;
+    uint16x8_t q11u16, q12u16, q13u16, q15u16;
+    int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16, q8s16, q9s16, q10s16;
+    int16x8_t q11s16, q12s16, q13s16, q15s16;
+
+    if (xoffset == 0) {  // secondpass_filter8x8_only
+        // load second_pass filter
+        dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+        d0s8 = vdup_lane_s8(dtmps8, 0);
+        d1s8 = vdup_lane_s8(dtmps8, 1);
+        d2s8 = vdup_lane_s8(dtmps8, 2);
+        d3s8 = vdup_lane_s8(dtmps8, 3);
+        d4s8 = vdup_lane_s8(dtmps8, 4);
+        d5s8 = vdup_lane_s8(dtmps8, 5);
+        d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+        d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+        d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+        d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+        d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+        d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+        // load src data
+        src_tmp = src_ptr - src_pixels_per_line * 2;
+        for (i = 0; i < 2; i++) {
+            src = src_tmp + i * 8;
+            dst = dst_ptr + i * 8;
+            d18u8 = vld1_u8(src);
+            src += src_pixels_per_line;
+            d19u8 = vld1_u8(src);
+            src += src_pixels_per_line;
+            d20u8 = vld1_u8(src);
+            src += src_pixels_per_line;
+            d21u8 = vld1_u8(src);
+            src += src_pixels_per_line;
+            d22u8 = vld1_u8(src);
+            src += src_pixels_per_line;
+            for (j = 0; j < 4; j++) {
+                d23u8 = vld1_u8(src);
+                src += src_pixels_per_line;
+                d24u8 = vld1_u8(src);
+                src += src_pixels_per_line;
+                d25u8 = vld1_u8(src);
+                src += src_pixels_per_line;
+                d26u8 = vld1_u8(src);
+                src += src_pixels_per_line;
+
+                q3u16 = vmull_u8(d18u8, d0u8);
+                q4u16 = vmull_u8(d19u8, d0u8);
+                q5u16 = vmull_u8(d20u8, d0u8);
+                q6u16 = vmull_u8(d21u8, d0u8);
+
+                q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
+                q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
+                q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
+                q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
+
+                q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
+                q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
+                q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
+                q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
+
+                q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
+                q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
+                q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
+                q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
+
+                q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
+                q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
+                q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
+                q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
+
+                q7u16 = vmull_u8(d21u8, d3u8);
+                q8u16 = vmull_u8(d22u8, d3u8);
+                q9u16 = vmull_u8(d23u8, d3u8);
+                q10u16 = vmull_u8(d24u8, d3u8);
+
+                q3s16 = vreinterpretq_s16_u16(q3u16);
+                q4s16 = vreinterpretq_s16_u16(q4u16);
+                q5s16 = vreinterpretq_s16_u16(q5u16);
+                q6s16 = vreinterpretq_s16_u16(q6u16);
+                q7s16 = vreinterpretq_s16_u16(q7u16);
+                q8s16 = vreinterpretq_s16_u16(q8u16);
+                q9s16 = vreinterpretq_s16_u16(q9u16);
+                q10s16 = vreinterpretq_s16_u16(q10u16);
+
+                q7s16 = vqaddq_s16(q7s16, q3s16);
+                q8s16 = vqaddq_s16(q8s16, q4s16);
+                q9s16 = vqaddq_s16(q9s16, q5s16);
+                q10s16 = vqaddq_s16(q10s16, q6s16);
+
+                d6u8 = vqrshrun_n_s16(q7s16, 7);
+                d7u8 = vqrshrun_n_s16(q8s16, 7);
+                d8u8 = vqrshrun_n_s16(q9s16, 7);
+                d9u8 = vqrshrun_n_s16(q10s16, 7);
+
+                d18u8 = d22u8;
+                d19u8 = d23u8;
+                d20u8 = d24u8;
+                d21u8 = d25u8;
+                d22u8 = d26u8;
+
+                vst1_u8(dst, d6u8);
+                dst += dst_pitch;
+                vst1_u8(dst, d7u8);
+                dst += dst_pitch;
+                vst1_u8(dst, d8u8);
+                dst += dst_pitch;
+                vst1_u8(dst, d9u8);
+                dst += dst_pitch;
+            }
+        }
+        return;
+    }
+
+    // load first_pass filter
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    // First pass: output_height lines x output_width columns (9x4)
+    if (yoffset == 0) {  // firstpass_filter4x4_only
+        src = src_ptr - 2;
+        dst = dst_ptr;
+        for (i = 0; i < 8; i++) {
+            d6u8 = vld1_u8(src);
+            d7u8 = vld1_u8(src + 8);
+            d8u8 = vld1_u8(src + 16);
+            src += src_pixels_per_line;
+            d9u8 = vld1_u8(src);
+            d10u8 = vld1_u8(src + 8);
+            d11u8 = vld1_u8(src + 16);
+            src += src_pixels_per_line;
+
+            __builtin_prefetch(src);
+            __builtin_prefetch(src + src_pixels_per_line);
+
+            q6u16 = vmull_u8(d6u8, d0u8);
+            q7u16 = vmull_u8(d7u8, d0u8);
+            q8u16 = vmull_u8(d9u8, d0u8);
+            q9u16 = vmull_u8(d10u8, d0u8);
+
+            d20u8 = vext_u8(d6u8, d7u8, 1);
+            d21u8 = vext_u8(d9u8, d10u8, 1);
+            d22u8 = vext_u8(d7u8, d8u8, 1);
+            d23u8 = vext_u8(d10u8, d11u8, 1);
+            d24u8 = vext_u8(d6u8, d7u8, 4);
+            d25u8 = vext_u8(d9u8, d10u8, 4);
+            d26u8 = vext_u8(d7u8, d8u8, 4);
+            d27u8 = vext_u8(d10u8, d11u8, 4);
+            d28u8 = vext_u8(d6u8, d7u8, 5);
+            d29u8 = vext_u8(d9u8, d10u8, 5);
+
+            q6u16 = vmlsl_u8(q6u16, d20u8, d1u8);
+            q8u16 = vmlsl_u8(q8u16, d21u8, d1u8);
+            q7u16 = vmlsl_u8(q7u16, d22u8, d1u8);
+            q9u16 = vmlsl_u8(q9u16, d23u8, d1u8);
+            q6u16 = vmlsl_u8(q6u16, d24u8, d4u8);
+            q8u16 = vmlsl_u8(q8u16, d25u8, d4u8);
+            q7u16 = vmlsl_u8(q7u16, d26u8, d4u8);
+            q9u16 = vmlsl_u8(q9u16, d27u8, d4u8);
+            q6u16 = vmlal_u8(q6u16, d28u8, d5u8);
+            q8u16 = vmlal_u8(q8u16, d29u8, d5u8);
+
+            d20u8 = vext_u8(d7u8, d8u8, 5);
+            d21u8 = vext_u8(d10u8, d11u8, 5);
+            d22u8 = vext_u8(d6u8, d7u8, 2);
+            d23u8 = vext_u8(d9u8, d10u8, 2);
+            d24u8 = vext_u8(d7u8, d8u8, 2);
+            d25u8 = vext_u8(d10u8, d11u8, 2);
+            d26u8 = vext_u8(d6u8, d7u8, 3);
+            d27u8 = vext_u8(d9u8, d10u8, 3);
+            d28u8 = vext_u8(d7u8, d8u8, 3);
+            d29u8 = vext_u8(d10u8, d11u8, 3);
+
+            q7u16 = vmlal_u8(q7u16, d20u8, d5u8);
+            q9u16 = vmlal_u8(q9u16, d21u8, d5u8);
+            q6u16 = vmlal_u8(q6u16, d22u8, d2u8);
+            q8u16 = vmlal_u8(q8u16, d23u8, d2u8);
+            q7u16 = vmlal_u8(q7u16, d24u8, d2u8);
+            q9u16 = vmlal_u8(q9u16, d25u8, d2u8);
+
+            q10u16 = vmull_u8(d26u8, d3u8);
+            q11u16 = vmull_u8(d27u8, d3u8);
+            q12u16 = vmull_u8(d28u8, d3u8);
+            q15u16 = vmull_u8(d29u8, d3u8);
+
+            q6s16 = vreinterpretq_s16_u16(q6u16);
+            q7s16 = vreinterpretq_s16_u16(q7u16);
+            q8s16 = vreinterpretq_s16_u16(q8u16);
+            q9s16 = vreinterpretq_s16_u16(q9u16);
+            q10s16 = vreinterpretq_s16_u16(q10u16);
+            q11s16 = vreinterpretq_s16_u16(q11u16);
+            q12s16 = vreinterpretq_s16_u16(q12u16);
+            q15s16 = vreinterpretq_s16_u16(q15u16);
+
+            q6s16 = vqaddq_s16(q6s16, q10s16);
+            q8s16 = vqaddq_s16(q8s16, q11s16);
+            q7s16 = vqaddq_s16(q7s16, q12s16);
+            q9s16 = vqaddq_s16(q9s16, q15s16);
+
+            d6u8 = vqrshrun_n_s16(q6s16, 7);
+            d7u8 = vqrshrun_n_s16(q7s16, 7);
+            d8u8 = vqrshrun_n_s16(q8s16, 7);
+            d9u8 = vqrshrun_n_s16(q9s16, 7);
+
+            q3u8 = vcombine_u8(d6u8, d7u8);
+            q4u8 = vcombine_u8(d8u8, d9u8);
+            vst1q_u8(dst, q3u8);
+            dst += dst_pitch;
+            vst1q_u8(dst, q4u8);
+            dst += dst_pitch;
+        }
+        return;
+    }
+
+    src = src_ptr - 2 - src_pixels_per_line * 2;
+    tmpp = tmp;
+    for (i = 0; i < 7; i++) {
+        d6u8 = vld1_u8(src);
+        d7u8 = vld1_u8(src + 8);
+        d8u8 = vld1_u8(src + 16);
+        src += src_pixels_per_line;
+        d9u8 = vld1_u8(src);
+        d10u8 = vld1_u8(src + 8);
+        d11u8 = vld1_u8(src + 16);
+        src += src_pixels_per_line;
+        d12u8 = vld1_u8(src);
+        d13u8 = vld1_u8(src + 8);
+        d14u8 = vld1_u8(src + 16);
+        src += src_pixels_per_line;
+
+        __builtin_prefetch(src);
+        __builtin_prefetch(src + src_pixels_per_line);
+        __builtin_prefetch(src + src_pixels_per_line * 2);
+
+        q8u16 = vmull_u8(d6u8, d0u8);
+        q9u16 = vmull_u8(d7u8, d0u8);
+        q10u16 = vmull_u8(d9u8, d0u8);
+        q11u16 = vmull_u8(d10u8, d0u8);
+        q12u16 = vmull_u8(d12u8, d0u8);
+        q13u16 = vmull_u8(d13u8, d0u8);
+
+        d28u8 = vext_u8(d6u8, d7u8, 1);
+        d29u8 = vext_u8(d9u8, d10u8, 1);
+        d30u8 = vext_u8(d12u8, d13u8, 1);
+        q8u16 = vmlsl_u8(q8u16, d28u8, d1u8);
+        q10u16 = vmlsl_u8(q10u16, d29u8, d1u8);
+        q12u16 = vmlsl_u8(q12u16, d30u8, d1u8);
+        d28u8 = vext_u8(d7u8, d8u8, 1);
+        d29u8 = vext_u8(d10u8, d11u8, 1);
+        d30u8 = vext_u8(d13u8, d14u8, 1);
+        q9u16  = vmlsl_u8(q9u16, d28u8, d1u8);
+        q11u16 = vmlsl_u8(q11u16, d29u8, d1u8);
+        q13u16 = vmlsl_u8(q13u16, d30u8, d1u8);
+
+        d28u8 = vext_u8(d6u8, d7u8, 4);
+        d29u8 = vext_u8(d9u8, d10u8, 4);
+        d30u8 = vext_u8(d12u8, d13u8, 4);
+        q8u16 = vmlsl_u8(q8u16, d28u8, d4u8);
+        q10u16 = vmlsl_u8(q10u16, d29u8, d4u8);
+        q12u16 = vmlsl_u8(q12u16, d30u8, d4u8);
+        d28u8 = vext_u8(d7u8, d8u8, 4);
+        d29u8 = vext_u8(d10u8, d11u8, 4);
+        d30u8 = vext_u8(d13u8, d14u8, 4);
+        q9u16 = vmlsl_u8(q9u16, d28u8, d4u8);
+        q11u16 = vmlsl_u8(q11u16, d29u8, d4u8);
+        q13u16 = vmlsl_u8(q13u16, d30u8, d4u8);
+
+        d28u8 = vext_u8(d6u8, d7u8, 5);
+        d29u8 = vext_u8(d9u8, d10u8, 5);
+        d30u8 = vext_u8(d12u8, d13u8, 5);
+        q8u16 = vmlal_u8(q8u16, d28u8, d5u8);
+        q10u16 = vmlal_u8(q10u16, d29u8, d5u8);
+        q12u16 = vmlal_u8(q12u16, d30u8, d5u8);
+        d28u8 = vext_u8(d7u8, d8u8, 5);
+        d29u8 = vext_u8(d10u8, d11u8, 5);
+        d30u8 = vext_u8(d13u8, d14u8, 5);
+        q9u16 = vmlal_u8(q9u16, d28u8, d5u8);
+        q11u16 = vmlal_u8(q11u16, d29u8, d5u8);
+        q13u16 = vmlal_u8(q13u16, d30u8, d5u8);
+
+        d28u8 = vext_u8(d6u8, d7u8, 2);
+        d29u8 = vext_u8(d9u8, d10u8, 2);
+        d30u8 = vext_u8(d12u8, d13u8, 2);
+        q8u16 = vmlal_u8(q8u16, d28u8, d2u8);
+        q10u16 = vmlal_u8(q10u16, d29u8, d2u8);
+        q12u16 = vmlal_u8(q12u16, d30u8, d2u8);
+        d28u8 = vext_u8(d7u8, d8u8, 2);
+        d29u8 = vext_u8(d10u8, d11u8, 2);
+        d30u8 = vext_u8(d13u8, d14u8, 2);
+        q9u16 = vmlal_u8(q9u16, d28u8, d2u8);
+        q11u16 = vmlal_u8(q11u16, d29u8, d2u8);
+        q13u16 = vmlal_u8(q13u16, d30u8, d2u8);
+
+        d28u8 = vext_u8(d6u8, d7u8, 3);
+        d29u8 = vext_u8(d9u8, d10u8, 3);
+        d30u8 = vext_u8(d12u8, d13u8, 3);
+        d15u8 = vext_u8(d7u8, d8u8, 3);
+        d31u8 = vext_u8(d10u8, d11u8, 3);
+        d6u8  = vext_u8(d13u8, d14u8, 3);
+        q4u16 = vmull_u8(d28u8, d3u8);
+        q5u16 = vmull_u8(d29u8, d3u8);
+        q6u16 = vmull_u8(d30u8, d3u8);
+        q4s16 = vreinterpretq_s16_u16(q4u16);
+        q5s16 = vreinterpretq_s16_u16(q5u16);
+        q6s16 = vreinterpretq_s16_u16(q6u16);
+        q8s16 = vreinterpretq_s16_u16(q8u16);
+        q10s16 = vreinterpretq_s16_u16(q10u16);
+        q12s16 = vreinterpretq_s16_u16(q12u16);
+        q8s16 = vqaddq_s16(q8s16, q4s16);
+        q10s16 = vqaddq_s16(q10s16, q5s16);
+        q12s16 = vqaddq_s16(q12s16, q6s16);
+
+        q6u16 = vmull_u8(d15u8, d3u8);
+        q7u16 = vmull_u8(d31u8, d3u8);
+        q3u16 = vmull_u8(d6u8, d3u8);
+        q3s16 = vreinterpretq_s16_u16(q3u16);
+        q6s16 = vreinterpretq_s16_u16(q6u16);
+        q7s16 = vreinterpretq_s16_u16(q7u16);
+        q9s16 = vreinterpretq_s16_u16(q9u16);
+        q11s16 = vreinterpretq_s16_u16(q11u16);
+        q13s16 = vreinterpretq_s16_u16(q13u16);
+        q9s16 = vqaddq_s16(q9s16, q6s16);
+        q11s16 = vqaddq_s16(q11s16, q7s16);
+        q13s16 = vqaddq_s16(q13s16, q3s16);
+
+        d6u8 = vqrshrun_n_s16(q8s16, 7);
+        d7u8 = vqrshrun_n_s16(q9s16, 7);
+        d8u8 = vqrshrun_n_s16(q10s16, 7);
+        d9u8 = vqrshrun_n_s16(q11s16, 7);
+        d10u8 = vqrshrun_n_s16(q12s16, 7);
+        d11u8 = vqrshrun_n_s16(q13s16, 7);
+
+        vst1_u8(tmpp, d6u8);
+        tmpp += 8;
+        vst1_u8(tmpp, d7u8);
+        tmpp += 8;
+        vst1_u8(tmpp, d8u8);
+        tmpp += 8;
+        vst1_u8(tmpp, d9u8);
+        tmpp += 8;
+        vst1_u8(tmpp, d10u8);
+        tmpp += 8;
+        vst1_u8(tmpp, d11u8);
+        tmpp += 8;
+    }
+
+    // Second pass: 16x16
+    dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
+    d0s8 = vdup_lane_s8(dtmps8, 0);
+    d1s8 = vdup_lane_s8(dtmps8, 1);
+    d2s8 = vdup_lane_s8(dtmps8, 2);
+    d3s8 = vdup_lane_s8(dtmps8, 3);
+    d4s8 = vdup_lane_s8(dtmps8, 4);
+    d5s8 = vdup_lane_s8(dtmps8, 5);
+    d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
+    d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
+    d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
+    d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
+    d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
+    d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
+
+    for (i = 0; i < 2; i++) {
+        dst = dst_ptr + 8 * i;
+        tmpp = tmp + 8 * i;
+        d18u8 = vld1_u8(tmpp);
+        tmpp += 16;
+        d19u8 = vld1_u8(tmpp);
+        tmpp += 16;
+        d20u8 = vld1_u8(tmpp);
+        tmpp += 16;
+        d21u8 = vld1_u8(tmpp);
+        tmpp += 16;
+        d22u8 = vld1_u8(tmpp);
+        tmpp += 16;
+        for (j = 0; j < 4; j++) {
+            d23u8 = vld1_u8(tmpp);
+            tmpp += 16;
+            d24u8 = vld1_u8(tmpp);
+            tmpp += 16;
+            d25u8 = vld1_u8(tmpp);
+            tmpp += 16;
+            d26u8 = vld1_u8(tmpp);
+            tmpp += 16;
+
+            q3u16 = vmull_u8(d18u8, d0u8);
+            q4u16 = vmull_u8(d19u8, d0u8);
+            q5u16 = vmull_u8(d20u8, d0u8);
+            q6u16 = vmull_u8(d21u8, d0u8);
+
+            q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
+            q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
+            q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
+            q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
+
+            q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
+            q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
+            q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
+            q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
+
+            q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
+            q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
+            q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
+            q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
+
+            q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
+            q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
+            q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
+            q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
+
+            q7u16 = vmull_u8(d21u8, d3u8);
+            q8u16 = vmull_u8(d22u8, d3u8);
+            q9u16 = vmull_u8(d23u8, d3u8);
+            q10u16 = vmull_u8(d24u8, d3u8);
+
+            q3s16 = vreinterpretq_s16_u16(q3u16);
+            q4s16 = vreinterpretq_s16_u16(q4u16);
+            q5s16 = vreinterpretq_s16_u16(q5u16);
+            q6s16 = vreinterpretq_s16_u16(q6u16);
+            q7s16 = vreinterpretq_s16_u16(q7u16);
+            q8s16 = vreinterpretq_s16_u16(q8u16);
+            q9s16 = vreinterpretq_s16_u16(q9u16);
+            q10s16 = vreinterpretq_s16_u16(q10u16);
+
+            q7s16 = vqaddq_s16(q7s16, q3s16);
+            q8s16 = vqaddq_s16(q8s16, q4s16);
+            q9s16 = vqaddq_s16(q9s16, q5s16);
+            q10s16 = vqaddq_s16(q10s16, q6s16);
+
+            d6u8 = vqrshrun_n_s16(q7s16, 7);
+            d7u8 = vqrshrun_n_s16(q8s16, 7);
+            d8u8 = vqrshrun_n_s16(q9s16, 7);
+            d9u8 = vqrshrun_n_s16(q10s16, 7);
+
+            d18u8 = d22u8;
+            d19u8 = d23u8;
+            d20u8 = d24u8;
+            d21u8 = d25u8;
+            d22u8 = d26u8;
+
+            vst1_u8(dst, d6u8);
+            dst += dst_pitch;
+            vst1_u8(dst, d7u8);
+            dst += dst_pitch;
+            vst1_u8(dst, d8u8);
+            dst += dst_pitch;
+            vst1_u8(dst, d9u8);
+            dst += dst_pitch;
+        }
+    }
+    return;
+}
diff --git a/media/libvpx/vp8/common/arm/neon/vp8_subpixelvariance_neon.c b/media/libvpx/vp8/common/arm/neon/vp8_subpixelvariance_neon.c
new file mode 100644
index 000000000..974d3b653
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/neon/vp8_subpixelvariance_neon.c
@@ -0,0 +1,1017 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "vpx_ports/mem.h"
+#include "vpx/vpx_integer.h"
+
+static const uint16_t bilinear_taps_coeff[8][2] = {
+    {128,   0},
+    {112,  16},
+    { 96,  32},
+    { 80,  48},
+    { 64,  64},
+    { 48,  80},
+    { 32,  96},
+    { 16, 112}
+};
+
+unsigned int vp8_sub_pixel_variance16x16_neon_func(
+        const unsigned char *src_ptr,
+        int src_pixels_per_line,
+        int xoffset,
+        int yoffset,
+        const unsigned char *dst_ptr,
+        int dst_pixels_per_line,
+        unsigned int *sse) {
+    int i;
+    DECLARE_ALIGNED(16, unsigned char, tmp[528]);
+    unsigned char *tmpp;
+    unsigned char *tmpp2;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
+    uint8x8_t d10u8, d11u8, d12u8, d13u8, d14u8, d15u8, d16u8, d17u8, d18u8;
+    uint8x8_t d19u8, d20u8, d21u8;
+    int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16;
+    uint32x2_t d0u32, d10u32;
+    int64x1_t d0s64, d1s64, d2s64, d3s64;
+    uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8;
+    uint8x16_t q10u8, q11u8, q12u8, q13u8, q14u8, q15u8;
+    uint16x8_t q1u16, q2u16, q3u16, q4u16, q5u16, q6u16, q7u16, q8u16;
+    uint16x8_t q9u16, q10u16, q11u16, q12u16, q13u16, q14u16;
+    int32x4_t q8s32, q9s32, q10s32;
+    int64x2_t q0s64, q1s64, q5s64;
+
+    tmpp2 = tmp + 272;
+    tmpp = tmp;
+    if (xoffset == 0) {  // secondpass_bfilter16x16_only
+        d0u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][0]);
+        d1u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][1]);
+
+        q11u8 = vld1q_u8(src_ptr);
+        src_ptr += src_pixels_per_line;
+        for (i = 4; i > 0; i--) {
+            q12u8 = vld1q_u8(src_ptr);
+            src_ptr += src_pixels_per_line;
+            q13u8 = vld1q_u8(src_ptr);
+            src_ptr += src_pixels_per_line;
+            q14u8 = vld1q_u8(src_ptr);
+            src_ptr += src_pixels_per_line;
+            q15u8 = vld1q_u8(src_ptr);
+            src_ptr += src_pixels_per_line;
+
+            __builtin_prefetch(src_ptr);
+            __builtin_prefetch(src_ptr + src_pixels_per_line);
+            __builtin_prefetch(src_ptr + src_pixels_per_line * 2);
+
+            q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8);
+            q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8);
+            q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8);
+            q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8);
+            q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8);
+            q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8);
+            q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8);
+            q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8);
+
+            q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8);
+            q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8);
+            q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8);
+            q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8);
+            q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8);
+            q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8);
+            q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8);
+            q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8);
+
+            d2u8 = vqrshrn_n_u16(q1u16, 7);
+            d3u8 = vqrshrn_n_u16(q2u16, 7);
+            d4u8 = vqrshrn_n_u16(q3u16, 7);
+            d5u8 = vqrshrn_n_u16(q4u16, 7);
+            d6u8 = vqrshrn_n_u16(q5u16, 7);
+            d7u8 = vqrshrn_n_u16(q6u16, 7);
+            d8u8 = vqrshrn_n_u16(q7u16, 7);
+            d9u8 = vqrshrn_n_u16(q8u16, 7);
+
+            q1u8 = vcombine_u8(d2u8, d3u8);
+            q2u8 = vcombine_u8(d4u8, d5u8);
+            q3u8 = vcombine_u8(d6u8, d7u8);
+            q4u8 = vcombine_u8(d8u8, d9u8);
+
+            q11u8 = q15u8;
+
+            vst1q_u8((uint8_t *)tmpp2, q1u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q2u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q3u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q4u8);
+            tmpp2 += 16;
+        }
+    } else if (yoffset == 0) {  // firstpass_bfilter16x16_only
+        d0u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][0]);
+        d1u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][1]);
+
+        for (i = 4; i > 0 ; i--) {
+            d2u8 = vld1_u8(src_ptr);
+            d3u8 = vld1_u8(src_ptr + 8);
+            d4u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+            d5u8 = vld1_u8(src_ptr);
+            d6u8 = vld1_u8(src_ptr + 8);
+            d7u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+            d8u8 = vld1_u8(src_ptr);
+            d9u8 = vld1_u8(src_ptr + 8);
+            d10u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+            d11u8 = vld1_u8(src_ptr);
+            d12u8 = vld1_u8(src_ptr + 8);
+            d13u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+
+            __builtin_prefetch(src_ptr);
+            __builtin_prefetch(src_ptr + src_pixels_per_line);
+            __builtin_prefetch(src_ptr + src_pixels_per_line * 2);
+
+            q7u16  = vmull_u8(d2u8, d0u8);
+            q8u16  = vmull_u8(d3u8, d0u8);
+            q9u16  = vmull_u8(d5u8, d0u8);
+            q10u16 = vmull_u8(d6u8, d0u8);
+            q11u16 = vmull_u8(d8u8, d0u8);
+            q12u16 = vmull_u8(d9u8, d0u8);
+            q13u16 = vmull_u8(d11u8, d0u8);
+            q14u16 = vmull_u8(d12u8, d0u8);
+
+            d2u8  = vext_u8(d2u8, d3u8, 1);
+            d5u8  = vext_u8(d5u8, d6u8, 1);
+            d8u8  = vext_u8(d8u8, d9u8, 1);
+            d11u8 = vext_u8(d11u8, d12u8, 1);
+
+            q7u16  = vmlal_u8(q7u16, d2u8, d1u8);
+            q9u16  = vmlal_u8(q9u16, d5u8, d1u8);
+            q11u16 = vmlal_u8(q11u16, d8u8, d1u8);
+            q13u16 = vmlal_u8(q13u16, d11u8, d1u8);
+
+            d3u8  = vext_u8(d3u8, d4u8, 1);
+            d6u8  = vext_u8(d6u8, d7u8, 1);
+            d9u8  = vext_u8(d9u8, d10u8, 1);
+            d12u8 = vext_u8(d12u8, d13u8, 1);
+
+            q8u16  = vmlal_u8(q8u16,  d3u8, d1u8);
+            q10u16 = vmlal_u8(q10u16, d6u8, d1u8);
+            q12u16 = vmlal_u8(q12u16, d9u8, d1u8);
+            q14u16 = vmlal_u8(q14u16, d12u8, d1u8);
+
+            d14u8 = vqrshrn_n_u16(q7u16, 7);
+            d15u8 = vqrshrn_n_u16(q8u16, 7);
+            d16u8 = vqrshrn_n_u16(q9u16, 7);
+            d17u8 = vqrshrn_n_u16(q10u16, 7);
+            d18u8 = vqrshrn_n_u16(q11u16, 7);
+            d19u8 = vqrshrn_n_u16(q12u16, 7);
+            d20u8 = vqrshrn_n_u16(q13u16, 7);
+            d21u8 = vqrshrn_n_u16(q14u16, 7);
+
+            q7u8  = vcombine_u8(d14u8, d15u8);
+            q8u8  = vcombine_u8(d16u8, d17u8);
+            q9u8  = vcombine_u8(d18u8, d19u8);
+            q10u8 = vcombine_u8(d20u8, d21u8);
+
+            vst1q_u8((uint8_t *)tmpp2, q7u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q8u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q9u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q10u8);
+            tmpp2 += 16;
+        }
+    } else {
+        d0u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][0]);
+        d1u8 = vdup_n_u8(bilinear_taps_coeff[xoffset][1]);
+
+        d2u8 = vld1_u8(src_ptr);
+        d3u8 = vld1_u8(src_ptr + 8);
+        d4u8 = vld1_u8(src_ptr + 16);
+        src_ptr += src_pixels_per_line;
+        d5u8 = vld1_u8(src_ptr);
+        d6u8 = vld1_u8(src_ptr + 8);
+        d7u8 = vld1_u8(src_ptr + 16);
+        src_ptr += src_pixels_per_line;
+        d8u8 = vld1_u8(src_ptr);
+        d9u8 = vld1_u8(src_ptr + 8);
+        d10u8 = vld1_u8(src_ptr + 16);
+        src_ptr += src_pixels_per_line;
+        d11u8 = vld1_u8(src_ptr);
+        d12u8 = vld1_u8(src_ptr + 8);
+        d13u8 = vld1_u8(src_ptr + 16);
+        src_ptr += src_pixels_per_line;
+
+        // First Pass: output_height lines x output_width columns (17x16)
+        for (i = 3; i > 0; i--) {
+            q7u16  = vmull_u8(d2u8, d0u8);
+            q8u16  = vmull_u8(d3u8, d0u8);
+            q9u16  = vmull_u8(d5u8, d0u8);
+            q10u16 = vmull_u8(d6u8, d0u8);
+            q11u16 = vmull_u8(d8u8, d0u8);
+            q12u16 = vmull_u8(d9u8, d0u8);
+            q13u16 = vmull_u8(d11u8, d0u8);
+            q14u16 = vmull_u8(d12u8, d0u8);
+
+            d2u8  = vext_u8(d2u8, d3u8, 1);
+            d5u8  = vext_u8(d5u8, d6u8, 1);
+            d8u8  = vext_u8(d8u8, d9u8, 1);
+            d11u8 = vext_u8(d11u8, d12u8, 1);
+
+            q7u16  = vmlal_u8(q7u16, d2u8, d1u8);
+            q9u16  = vmlal_u8(q9u16, d5u8, d1u8);
+            q11u16 = vmlal_u8(q11u16, d8u8, d1u8);
+            q13u16 = vmlal_u8(q13u16, d11u8, d1u8);
+
+            d3u8  = vext_u8(d3u8, d4u8, 1);
+            d6u8  = vext_u8(d6u8, d7u8, 1);
+            d9u8  = vext_u8(d9u8, d10u8, 1);
+            d12u8 = vext_u8(d12u8, d13u8, 1);
+
+            q8u16  = vmlal_u8(q8u16,  d3u8, d1u8);
+            q10u16 = vmlal_u8(q10u16, d6u8, d1u8);
+            q12u16 = vmlal_u8(q12u16, d9u8, d1u8);
+            q14u16 = vmlal_u8(q14u16, d12u8, d1u8);
+
+            d14u8 = vqrshrn_n_u16(q7u16, 7);
+            d15u8 = vqrshrn_n_u16(q8u16, 7);
+            d16u8 = vqrshrn_n_u16(q9u16, 7);
+            d17u8 = vqrshrn_n_u16(q10u16, 7);
+            d18u8 = vqrshrn_n_u16(q11u16, 7);
+            d19u8 = vqrshrn_n_u16(q12u16, 7);
+            d20u8 = vqrshrn_n_u16(q13u16, 7);
+            d21u8 = vqrshrn_n_u16(q14u16, 7);
+
+            d2u8 = vld1_u8(src_ptr);
+            d3u8 = vld1_u8(src_ptr + 8);
+            d4u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+            d5u8 = vld1_u8(src_ptr);
+            d6u8 = vld1_u8(src_ptr + 8);
+            d7u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+            d8u8 = vld1_u8(src_ptr);
+            d9u8 = vld1_u8(src_ptr + 8);
+            d10u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+            d11u8 = vld1_u8(src_ptr);
+            d12u8 = vld1_u8(src_ptr + 8);
+            d13u8 = vld1_u8(src_ptr + 16);
+            src_ptr += src_pixels_per_line;
+
+            q7u8 = vcombine_u8(d14u8, d15u8);
+            q8u8 = vcombine_u8(d16u8, d17u8);
+            q9u8 = vcombine_u8(d18u8, d19u8);
+            q10u8 = vcombine_u8(d20u8, d21u8);
+
+            vst1q_u8((uint8_t *)tmpp, q7u8);
+            tmpp += 16;
+            vst1q_u8((uint8_t *)tmpp, q8u8);
+            tmpp += 16;
+            vst1q_u8((uint8_t *)tmpp, q9u8);
+            tmpp += 16;
+            vst1q_u8((uint8_t *)tmpp, q10u8);
+            tmpp += 16;
+        }
+
+        // First-pass filtering for rest 5 lines
+        d14u8 = vld1_u8(src_ptr);
+        d15u8 = vld1_u8(src_ptr + 8);
+        d16u8 = vld1_u8(src_ptr + 16);
+        src_ptr += src_pixels_per_line;
+
+        q9u16  = vmull_u8(d2u8, d0u8);
+        q10u16 = vmull_u8(d3u8, d0u8);
+        q11u16 = vmull_u8(d5u8, d0u8);
+        q12u16 = vmull_u8(d6u8, d0u8);
+        q13u16 = vmull_u8(d8u8, d0u8);
+        q14u16 = vmull_u8(d9u8, d0u8);
+
+        d2u8  = vext_u8(d2u8, d3u8, 1);
+        d5u8  = vext_u8(d5u8, d6u8, 1);
+        d8u8  = vext_u8(d8u8, d9u8, 1);
+
+        q9u16  = vmlal_u8(q9u16, d2u8, d1u8);
+        q11u16 = vmlal_u8(q11u16, d5u8, d1u8);
+        q13u16 = vmlal_u8(q13u16, d8u8, d1u8);
+
+        d3u8  = vext_u8(d3u8, d4u8, 1);
+        d6u8  = vext_u8(d6u8, d7u8, 1);
+        d9u8  = vext_u8(d9u8, d10u8, 1);
+
+        q10u16 = vmlal_u8(q10u16, d3u8, d1u8);
+        q12u16 = vmlal_u8(q12u16, d6u8, d1u8);
+        q14u16 = vmlal_u8(q14u16, d9u8, d1u8);
+
+        q1u16 = vmull_u8(d11u8, d0u8);
+        q2u16 = vmull_u8(d12u8, d0u8);
+        q3u16 = vmull_u8(d14u8, d0u8);
+        q4u16 = vmull_u8(d15u8, d0u8);
+
+        d11u8 = vext_u8(d11u8, d12u8, 1);
+        d14u8 = vext_u8(d14u8, d15u8, 1);
+
+        q1u16 = vmlal_u8(q1u16, d11u8, d1u8);
+        q3u16 = vmlal_u8(q3u16, d14u8, d1u8);
+
+        d12u8 = vext_u8(d12u8, d13u8, 1);
+        d15u8 = vext_u8(d15u8, d16u8, 1);
+
+        q2u16 = vmlal_u8(q2u16, d12u8, d1u8);
+        q4u16 = vmlal_u8(q4u16, d15u8, d1u8);
+
+        d10u8 = vqrshrn_n_u16(q9u16, 7);
+        d11u8 = vqrshrn_n_u16(q10u16, 7);
+        d12u8 = vqrshrn_n_u16(q11u16, 7);
+        d13u8 = vqrshrn_n_u16(q12u16, 7);
+        d14u8 = vqrshrn_n_u16(q13u16, 7);
+        d15u8 = vqrshrn_n_u16(q14u16, 7);
+        d16u8 = vqrshrn_n_u16(q1u16, 7);
+        d17u8 = vqrshrn_n_u16(q2u16, 7);
+        d18u8 = vqrshrn_n_u16(q3u16, 7);
+        d19u8 = vqrshrn_n_u16(q4u16, 7);
+
+        q5u8 = vcombine_u8(d10u8, d11u8);
+        q6u8 = vcombine_u8(d12u8, d13u8);
+        q7u8 = vcombine_u8(d14u8, d15u8);
+        q8u8 = vcombine_u8(d16u8, d17u8);
+        q9u8 = vcombine_u8(d18u8, d19u8);
+
+        vst1q_u8((uint8_t *)tmpp, q5u8);
+        tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q6u8);
+        tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q7u8);
+        tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q8u8);
+        tmpp += 16;
+        vst1q_u8((uint8_t *)tmpp, q9u8);
+
+        // secondpass_filter
+        d0u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][0]);
+        d1u8 = vdup_n_u8(bilinear_taps_coeff[yoffset][1]);
+
+        tmpp = tmp;
+        tmpp2 = tmpp + 272;
+        q11u8 = vld1q_u8(tmpp);
+        tmpp += 16;
+        for (i = 4; i > 0; i--) {
+            q12u8 = vld1q_u8(tmpp);
+            tmpp += 16;
+            q13u8 = vld1q_u8(tmpp);
+            tmpp += 16;
+            q14u8 = vld1q_u8(tmpp);
+            tmpp += 16;
+            q15u8 = vld1q_u8(tmpp);
+            tmpp += 16;
+
+            q1u16 = vmull_u8(vget_low_u8(q11u8), d0u8);
+            q2u16 = vmull_u8(vget_high_u8(q11u8), d0u8);
+            q3u16 = vmull_u8(vget_low_u8(q12u8), d0u8);
+            q4u16 = vmull_u8(vget_high_u8(q12u8), d0u8);
+            q5u16 = vmull_u8(vget_low_u8(q13u8), d0u8);
+            q6u16 = vmull_u8(vget_high_u8(q13u8), d0u8);
+            q7u16 = vmull_u8(vget_low_u8(q14u8), d0u8);
+            q8u16 = vmull_u8(vget_high_u8(q14u8), d0u8);
+
+            q1u16 = vmlal_u8(q1u16, vget_low_u8(q12u8), d1u8);
+            q2u16 = vmlal_u8(q2u16, vget_high_u8(q12u8), d1u8);
+            q3u16 = vmlal_u8(q3u16, vget_low_u8(q13u8), d1u8);
+            q4u16 = vmlal_u8(q4u16, vget_high_u8(q13u8), d1u8);
+            q5u16 = vmlal_u8(q5u16, vget_low_u8(q14u8), d1u8);
+            q6u16 = vmlal_u8(q6u16, vget_high_u8(q14u8), d1u8);
+            q7u16 = vmlal_u8(q7u16, vget_low_u8(q15u8), d1u8);
+            q8u16 = vmlal_u8(q8u16, vget_high_u8(q15u8), d1u8);
+
+            d2u8 = vqrshrn_n_u16(q1u16, 7);
+            d3u8 = vqrshrn_n_u16(q2u16, 7);
+            d4u8 = vqrshrn_n_u16(q3u16, 7);
+            d5u8 = vqrshrn_n_u16(q4u16, 7);
+            d6u8 = vqrshrn_n_u16(q5u16, 7);
+            d7u8 = vqrshrn_n_u16(q6u16, 7);
+            d8u8 = vqrshrn_n_u16(q7u16, 7);
+            d9u8 = vqrshrn_n_u16(q8u16, 7);
+
+            q1u8 = vcombine_u8(d2u8, d3u8);
+            q2u8 = vcombine_u8(d4u8, d5u8);
+            q3u8 = vcombine_u8(d6u8, d7u8);
+            q4u8 = vcombine_u8(d8u8, d9u8);
+
+            q11u8 = q15u8;
+
+            vst1q_u8((uint8_t *)tmpp2, q1u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q2u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q3u8);
+            tmpp2 += 16;
+            vst1q_u8((uint8_t *)tmpp2, q4u8);
+            tmpp2 += 16;
+        }
+    }
+
+    // sub_pixel_variance16x16_neon
+    q8s32 = vdupq_n_s32(0);
+    q9s32 = vdupq_n_s32(0);
+    q10s32 = vdupq_n_s32(0);
+
+    tmpp = tmp + 272;
+    for (i = 0; i < 8; i++) {  // sub_pixel_variance16x16_neon_loop
+        q0u8 = vld1q_u8(tmpp);
+        tmpp += 16;
+        q1u8 = vld1q_u8(tmpp);
+        tmpp += 16;
+        q2u8 = vld1q_u8(dst_ptr);
+        dst_ptr += dst_pixels_per_line;
+        q3u8 = vld1q_u8(dst_ptr);
+        dst_ptr += dst_pixels_per_line;
+
+        d0u8 = vget_low_u8(q0u8);
+        d1u8 = vget_high_u8(q0u8);
+        d2u8 = vget_low_u8(q1u8);
+        d3u8 = vget_high_u8(q1u8);
+
+        q11u16 = vsubl_u8(d0u8, vget_low_u8(q2u8));
+        q12u16 = vsubl_u8(d1u8, vget_high_u8(q2u8));
+        q13u16 = vsubl_u8(d2u8, vget_low_u8(q3u8));
+        q14u16 = vsubl_u8(d3u8, vget_high_u8(q3u8));
+
+        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
+        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16));
+        q9s32 = vmlal_s16(q9s32, d22s16, d22s16);
+        q10s32 = vmlal_s16(q10s32, d23s16, d23s16);
+
+        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
+        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16));
+        q9s32 = vmlal_s16(q9s32, d24s16, d24s16);
+        q10s32 = vmlal_s16(q10s32, d25s16, d25s16);
+
+        d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
+        d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16));
+        q9s32 = vmlal_s16(q9s32, d26s16, d26s16);
+        q10s32 = vmlal_s16(q10s32, d27s16, d27s16);
+
+        d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16));
+        d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16));
+        q9s32 = vmlal_s16(q9s32, d28s16, d28s16);
+        q10s32 = vmlal_s16(q10s32, d29s16, d29s16);
+    }
+
+    q10s32 = vaddq_s32(q10s32, q9s32);
+    q0s64 = vpaddlq_s32(q8s32);
+    q1s64 = vpaddlq_s32(q10s32);
+
+    d0s64 = vget_low_s64(q0s64);
+    d1s64 = vget_high_s64(q0s64);
+    d2s64 = vget_low_s64(q1s64);
+    d3s64 = vget_high_s64(q1s64);
+    d0s64 = vadd_s64(d0s64, d1s64);
+    d1s64 = vadd_s64(d2s64, d3s64);
+
+    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
+                      vreinterpret_s32_s64(d0s64));
+    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);
+
+    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8);
+    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);
+
+    return vget_lane_u32(d0u32, 0);
+}
+
+unsigned int vp8_variance_halfpixvar16x16_h_neon(
+        const unsigned char *src_ptr,
+        int  source_stride,
+        const unsigned char *ref_ptr,
+        int  recon_stride,
+        unsigned int *sse) {
+    int i;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8;
+    int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
+    int16x4_t d8s16, d9s16, d10s16, d11s16, d12s16, d13s16, d14s16, d15s16;
+    uint32x2_t d0u32, d10u32;
+    int64x1_t d0s64, d1s64, d2s64, d3s64;
+    uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8;
+    uint8x16_t q7u8, q11u8, q12u8, q13u8, q14u8;
+    uint16x8_t q0u16, q1u16, q2u16, q3u16, q4u16, q5u16, q6u16, q7u16;
+    int32x4_t q8s32, q9s32, q10s32;
+    int64x2_t q0s64, q1s64, q5s64;
+
+    q8s32 = vdupq_n_s32(0);
+    q9s32 = vdupq_n_s32(0);
+    q10s32 = vdupq_n_s32(0);
+
+    for (i = 0; i < 4; i++) {  // vp8_filt_fpo16x16s_4_0_loop_neon
+        q0u8 = vld1q_u8(src_ptr);
+        q1u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+        q2u8 = vld1q_u8(src_ptr);
+        q3u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+        q4u8 = vld1q_u8(src_ptr);
+        q5u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+        q6u8 = vld1q_u8(src_ptr);
+        q7u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+
+        q11u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q12u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q13u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q14u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+
+        q1u8 = vextq_u8(q0u8, q1u8, 1);
+        q3u8 = vextq_u8(q2u8, q3u8, 1);
+        q5u8 = vextq_u8(q4u8, q5u8, 1);
+        q7u8 = vextq_u8(q6u8, q7u8, 1);
+
+        q0u8 = vrhaddq_u8(q0u8, q1u8);
+        q1u8 = vrhaddq_u8(q2u8, q3u8);
+        q2u8 = vrhaddq_u8(q4u8, q5u8);
+        q3u8 = vrhaddq_u8(q6u8, q7u8);
+
+        d0u8 = vget_low_u8(q0u8);
+        d1u8 = vget_high_u8(q0u8);
+        d2u8 = vget_low_u8(q1u8);
+        d3u8 = vget_high_u8(q1u8);
+        d4u8 = vget_low_u8(q2u8);
+        d5u8 = vget_high_u8(q2u8);
+        d6u8 = vget_low_u8(q3u8);
+        d7u8 = vget_high_u8(q3u8);
+
+        q4u16 = vsubl_u8(d0u8, vget_low_u8(q11u8));
+        q5u16 = vsubl_u8(d1u8, vget_high_u8(q11u8));
+        q6u16 = vsubl_u8(d2u8, vget_low_u8(q12u8));
+        q7u16 = vsubl_u8(d3u8, vget_high_u8(q12u8));
+        q0u16 = vsubl_u8(d4u8, vget_low_u8(q13u8));
+        q1u16 = vsubl_u8(d5u8, vget_high_u8(q13u8));
+        q2u16 = vsubl_u8(d6u8, vget_low_u8(q14u8));
+        q3u16 = vsubl_u8(d7u8, vget_high_u8(q14u8));
+
+        d8s16 = vreinterpret_s16_u16(vget_low_u16(q4u16));
+        d9s16 = vreinterpret_s16_u16(vget_high_u16(q4u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q4u16));
+        q9s32 = vmlal_s16(q9s32, d8s16, d8s16);
+        q10s32 = vmlal_s16(q10s32, d9s16, d9s16);
+        d10s16 = vreinterpret_s16_u16(vget_low_u16(q5u16));
+        d11s16 = vreinterpret_s16_u16(vget_high_u16(q5u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q5u16));
+        q9s32 = vmlal_s16(q9s32, d10s16, d10s16);
+        q10s32 = vmlal_s16(q10s32, d11s16, d11s16);
+        d12s16 = vreinterpret_s16_u16(vget_low_u16(q6u16));
+        d13s16 = vreinterpret_s16_u16(vget_high_u16(q6u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q6u16));
+        q9s32 = vmlal_s16(q9s32, d12s16, d12s16);
+        q10s32 = vmlal_s16(q10s32, d13s16, d13s16);
+        d14s16 = vreinterpret_s16_u16(vget_low_u16(q7u16));
+        d15s16 = vreinterpret_s16_u16(vget_high_u16(q7u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q7u16));
+        q9s32 = vmlal_s16(q9s32, d14s16, d14s16);
+        q10s32 = vmlal_s16(q10s32, d15s16, d15s16);
+        d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16));
+        d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q0u16));
+        q9s32 = vmlal_s16(q9s32, d0s16, d0s16);
+        q10s32 = vmlal_s16(q10s32, d1s16, d1s16);
+        d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16));
+        d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q1u16));
+        q9s32 = vmlal_s16(q9s32, d2s16, d2s16);
+        q10s32 = vmlal_s16(q10s32, d3s16, d3s16);
+        d4s16 = vreinterpret_s16_u16(vget_low_u16(q2u16));
+        d5s16 = vreinterpret_s16_u16(vget_high_u16(q2u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q2u16));
+        q9s32 = vmlal_s16(q9s32, d4s16, d4s16);
+        q10s32 = vmlal_s16(q10s32, d5s16, d5s16);
+        d6s16 = vreinterpret_s16_u16(vget_low_u16(q3u16));
+        d7s16 = vreinterpret_s16_u16(vget_high_u16(q3u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q3u16));
+        q9s32 = vmlal_s16(q9s32, d6s16, d6s16);
+        q10s32 = vmlal_s16(q10s32, d7s16, d7s16);
+    }
+
+    q10s32 = vaddq_s32(q10s32, q9s32);
+    q0s64 = vpaddlq_s32(q8s32);
+    q1s64 = vpaddlq_s32(q10s32);
+
+    d0s64 = vget_low_s64(q0s64);
+    d1s64 = vget_high_s64(q0s64);
+    d2s64 = vget_low_s64(q1s64);
+    d3s64 = vget_high_s64(q1s64);
+    d0s64 = vadd_s64(d0s64, d1s64);
+    d1s64 = vadd_s64(d2s64, d3s64);
+
+    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
+                      vreinterpret_s32_s64(d0s64));
+    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);
+
+    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8);
+    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);
+
+    return vget_lane_u32(d0u32, 0);
+}
+
+unsigned int vp8_variance_halfpixvar16x16_v_neon(
+        const unsigned char *src_ptr,
+        int  source_stride,
+        const unsigned char *ref_ptr,
+        int  recon_stride,
+        unsigned int *sse) {
+    int i;
+    uint8x8_t d0u8, d1u8, d4u8, d5u8, d8u8, d9u8, d12u8, d13u8;
+    int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16;
+    int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
+    uint32x2_t d0u32, d10u32;
+    int64x1_t d0s64, d1s64, d2s64, d3s64;
+    uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q15u8;
+    uint16x8_t q0u16, q1u16, q2u16, q3u16, q11u16, q12u16, q13u16, q14u16;
+    int32x4_t q8s32, q9s32, q10s32;
+    int64x2_t q0s64, q1s64, q5s64;
+
+    q8s32 = vdupq_n_s32(0);
+    q9s32 = vdupq_n_s32(0);
+    q10s32 = vdupq_n_s32(0);
+
+    q0u8 = vld1q_u8(src_ptr);
+    src_ptr += source_stride;
+    for (i = 0; i < 4; i++) {  // vp8_filt_fpo16x16s_4_0_loop_neon
+        q2u8 = vld1q_u8(src_ptr);
+        src_ptr += source_stride;
+        q4u8 = vld1q_u8(src_ptr);
+        src_ptr += source_stride;
+        q6u8 = vld1q_u8(src_ptr);
+        src_ptr += source_stride;
+        q15u8 = vld1q_u8(src_ptr);
+        src_ptr += source_stride;
+
+        q1u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q3u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q5u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q7u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+
+        q0u8 = vrhaddq_u8(q0u8, q2u8);
+        q2u8 = vrhaddq_u8(q2u8, q4u8);
+        q4u8 = vrhaddq_u8(q4u8, q6u8);
+        q6u8 = vrhaddq_u8(q6u8, q15u8);
+
+        d0u8  = vget_low_u8(q0u8);
+        d1u8  = vget_high_u8(q0u8);
+        d4u8  = vget_low_u8(q2u8);
+        d5u8  = vget_high_u8(q2u8);
+        d8u8  = vget_low_u8(q4u8);
+        d9u8  = vget_high_u8(q4u8);
+        d12u8 = vget_low_u8(q6u8);
+        d13u8 = vget_high_u8(q6u8);
+
+        q11u16 = vsubl_u8(d0u8, vget_low_u8(q1u8));
+        q12u16 = vsubl_u8(d1u8, vget_high_u8(q1u8));
+        q13u16 = vsubl_u8(d4u8, vget_low_u8(q3u8));
+        q14u16 = vsubl_u8(d5u8, vget_high_u8(q3u8));
+        q0u16  = vsubl_u8(d8u8, vget_low_u8(q5u8));
+        q1u16  = vsubl_u8(d9u8, vget_high_u8(q5u8));
+        q2u16  = vsubl_u8(d12u8, vget_low_u8(q7u8));
+        q3u16  = vsubl_u8(d13u8, vget_high_u8(q7u8));
+
+        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
+        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16));
+        q9s32 = vmlal_s16(q9s32, d22s16, d22s16);
+        q10s32 = vmlal_s16(q10s32, d23s16, d23s16);
+        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
+        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16));
+        q9s32 = vmlal_s16(q9s32, d24s16, d24s16);
+        q10s32 = vmlal_s16(q10s32, d25s16, d25s16);
+        d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16));
+        d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16));
+        q9s32 = vmlal_s16(q9s32, d26s16, d26s16);
+        q10s32 = vmlal_s16(q10s32, d27s16, d27s16);
+        d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16));
+        d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16));
+        q9s32 = vmlal_s16(q9s32, d28s16, d28s16);
+        q10s32 = vmlal_s16(q10s32, d29s16, d29s16);
+        d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16));
+        d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q0u16));
+        q9s32 = vmlal_s16(q9s32, d0s16, d0s16);
+        q10s32 = vmlal_s16(q10s32, d1s16, d1s16);
+        d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16));
+        d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q1u16));
+        q9s32 = vmlal_s16(q9s32, d2s16, d2s16);
+        q10s32 = vmlal_s16(q10s32, d3s16, d3s16);
+        d4s16 = vreinterpret_s16_u16(vget_low_u16(q2u16));
+        d5s16 = vreinterpret_s16_u16(vget_high_u16(q2u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q2u16));
+        q9s32 = vmlal_s16(q9s32, d4s16, d4s16);
+        q10s32 = vmlal_s16(q10s32, d5s16, d5s16);
+        d6s16 = vreinterpret_s16_u16(vget_low_u16(q3u16));
+        d7s16 = vreinterpret_s16_u16(vget_high_u16(q3u16));
+        q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q3u16));
+        q9s32 = vmlal_s16(q9s32, d6s16, d6s16);
+        q10s32 = vmlal_s16(q10s32, d7s16, d7s16);
+
+        q0u8 = q15u8;
+    }
+
+    q10s32 = vaddq_s32(q10s32, q9s32);
+    q0s64 = vpaddlq_s32(q8s32);
+    q1s64 = vpaddlq_s32(q10s32);
+
+    d0s64 = vget_low_s64(q0s64);
+    d1s64 = vget_high_s64(q0s64);
+    d2s64 = vget_low_s64(q1s64);
+    d3s64 = vget_high_s64(q1s64);
+    d0s64 = vadd_s64(d0s64, d1s64);
+    d1s64 = vadd_s64(d2s64, d3s64);
+
+    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
+                      vreinterpret_s32_s64(d0s64));
+    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);
+
+    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8);
+    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);
+
+    return vget_lane_u32(d0u32, 0);
+}
+
+unsigned int vp8_variance_halfpixvar16x16_hv_neon(
+        const unsigned char *src_ptr,
+        int  source_stride,
+        const unsigned char *ref_ptr,
+        int  recon_stride,
+        unsigned int *sse) {
+    int i;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8;
+    int16x4_t d0s16, d1s16, d2s16, d3s16, d10s16, d11s16, d12s16, d13s16;
+    int16x4_t d18s16, d19s16, d20s16, d21s16, d22s16, d23s16, d24s16, d25s16;
+    uint32x2_t d0u32, d10u32;
+    int64x1_t d0s64, d1s64, d2s64, d3s64;
+    uint8x16_t q0u8, q1u8, q2u8, q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8;
+    uint16x8_t q0u16, q1u16, q5u16, q6u16, q9u16, q10u16, q11u16, q12u16;
+    int32x4_t q13s32, q14s32, q15s32;
+    int64x2_t q0s64, q1s64, q5s64;
+
+    q13s32 = vdupq_n_s32(0);
+    q14s32 = vdupq_n_s32(0);
+    q15s32 = vdupq_n_s32(0);
+
+    q0u8 = vld1q_u8(src_ptr);
+    q1u8 = vld1q_u8(src_ptr + 16);
+    src_ptr += source_stride;
+    q1u8 = vextq_u8(q0u8, q1u8, 1);
+    q0u8 = vrhaddq_u8(q0u8, q1u8);
+    for (i = 0; i < 4; i++) {  // vp8_filt_fpo16x16s_4_0_loop_neon
+        q2u8 = vld1q_u8(src_ptr);
+        q3u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+        q4u8 = vld1q_u8(src_ptr);
+        q5u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+        q6u8 = vld1q_u8(src_ptr);
+        q7u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+        q8u8 = vld1q_u8(src_ptr);
+        q9u8 = vld1q_u8(src_ptr + 16);
+        src_ptr += source_stride;
+
+        q3u8 = vextq_u8(q2u8, q3u8, 1);
+        q5u8 = vextq_u8(q4u8, q5u8, 1);
+        q7u8 = vextq_u8(q6u8, q7u8, 1);
+        q9u8 = vextq_u8(q8u8, q9u8, 1);
+
+        q1u8 = vrhaddq_u8(q2u8, q3u8);
+        q2u8 = vrhaddq_u8(q4u8, q5u8);
+        q3u8 = vrhaddq_u8(q6u8, q7u8);
+        q4u8 = vrhaddq_u8(q8u8, q9u8);
+        q0u8 = vrhaddq_u8(q0u8, q1u8);
+        q1u8 = vrhaddq_u8(q1u8, q2u8);
+        q2u8 = vrhaddq_u8(q2u8, q3u8);
+        q3u8 = vrhaddq_u8(q3u8, q4u8);
+
+        q5u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q6u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q7u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+        q8u8 = vld1q_u8(ref_ptr);
+        ref_ptr += recon_stride;
+
+        d0u8 = vget_low_u8(q0u8);
+        d1u8 = vget_high_u8(q0u8);
+        d2u8 = vget_low_u8(q1u8);
+        d3u8 = vget_high_u8(q1u8);
+        d4u8 = vget_low_u8(q2u8);
+        d5u8 = vget_high_u8(q2u8);
+        d6u8 = vget_low_u8(q3u8);
+        d7u8 = vget_high_u8(q3u8);
+
+        q9u16  = vsubl_u8(d0u8, vget_low_u8(q5u8));
+        q10u16 = vsubl_u8(d1u8, vget_high_u8(q5u8));
+        q11u16 = vsubl_u8(d2u8, vget_low_u8(q6u8));
+        q12u16 = vsubl_u8(d3u8, vget_high_u8(q6u8));
+        q0u16  = vsubl_u8(d4u8, vget_low_u8(q7u8));
+        q1u16  = vsubl_u8(d5u8, vget_high_u8(q7u8));
+        q5u16  = vsubl_u8(d6u8, vget_low_u8(q8u8));
+        q6u16  = vsubl_u8(d7u8, vget_high_u8(q8u8));
+
+        d18s16 = vreinterpret_s16_u16(vget_low_u16(q9u16));
+        d19s16 = vreinterpret_s16_u16(vget_high_u16(q9u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q9u16));
+        q14s32 = vmlal_s16(q14s32, d18s16, d18s16);
+        q15s32 = vmlal_s16(q15s32, d19s16, d19s16);
+
+        d20s16 = vreinterpret_s16_u16(vget_low_u16(q10u16));
+        d21s16 = vreinterpret_s16_u16(vget_high_u16(q10u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q10u16));
+        q14s32 = vmlal_s16(q14s32, d20s16, d20s16);
+        q15s32 = vmlal_s16(q15s32, d21s16, d21s16);
+
+        d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16));
+        d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q11u16));
+        q14s32 = vmlal_s16(q14s32, d22s16, d22s16);
+        q15s32 = vmlal_s16(q15s32, d23s16, d23s16);
+
+        d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16));
+        d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q12u16));
+        q14s32 = vmlal_s16(q14s32, d24s16, d24s16);
+        q15s32 = vmlal_s16(q15s32, d25s16, d25s16);
+
+        d0s16 = vreinterpret_s16_u16(vget_low_u16(q0u16));
+        d1s16 = vreinterpret_s16_u16(vget_high_u16(q0u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q0u16));
+        q14s32 = vmlal_s16(q14s32, d0s16, d0s16);
+        q15s32 = vmlal_s16(q15s32, d1s16, d1s16);
+
+        d2s16 = vreinterpret_s16_u16(vget_low_u16(q1u16));
+        d3s16 = vreinterpret_s16_u16(vget_high_u16(q1u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q1u16));
+        q14s32 = vmlal_s16(q14s32, d2s16, d2s16);
+        q15s32 = vmlal_s16(q15s32, d3s16, d3s16);
+
+        d10s16 = vreinterpret_s16_u16(vget_low_u16(q5u16));
+        d11s16 = vreinterpret_s16_u16(vget_high_u16(q5u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q5u16));
+        q14s32 = vmlal_s16(q14s32, d10s16, d10s16);
+        q15s32 = vmlal_s16(q15s32, d11s16, d11s16);
+
+        d12s16 = vreinterpret_s16_u16(vget_low_u16(q6u16));
+        d13s16 = vreinterpret_s16_u16(vget_high_u16(q6u16));
+        q13s32 = vpadalq_s16(q13s32, vreinterpretq_s16_u16(q6u16));
+        q14s32 = vmlal_s16(q14s32, d12s16, d12s16);
+        q15s32 = vmlal_s16(q15s32, d13s16, d13s16);
+
+        q0u8 = q4u8;
+    }
+
+    q15s32 = vaddq_s32(q14s32, q15s32);
+    q0s64 = vpaddlq_s32(q13s32);
+    q1s64 = vpaddlq_s32(q15s32);
+
+    d0s64 = vget_low_s64(q0s64);
+    d1s64 = vget_high_s64(q0s64);
+    d2s64 = vget_low_s64(q1s64);
+    d3s64 = vget_high_s64(q1s64);
+    d0s64 = vadd_s64(d0s64, d1s64);
+    d1s64 = vadd_s64(d2s64, d3s64);
+
+    q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64),
+                      vreinterpret_s32_s64(d0s64));
+    vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0);
+
+    d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8);
+    d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32);
+
+    return vget_lane_u32(d0u32, 0);
+}
+
+#define FILTER_BITS 7
+
+static INLINE int horizontal_add_s16x8(const int16x8_t v_16x8) {
+  const int32x4_t a = vpaddlq_s16(v_16x8);
+  const int64x2_t b = vpaddlq_s32(a);
+  const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)),
+                               vreinterpret_s32_s64(vget_high_s64(b)));
+  return vget_lane_s32(c, 0);
+}
+
+static INLINE int horizontal_add_s32x4(const int32x4_t v_32x4) {
+  const int64x2_t b = vpaddlq_s32(v_32x4);
+  const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)),
+                               vreinterpret_s32_s64(vget_high_s64(b)));
+  return vget_lane_s32(c, 0);
+}
+
+static void variance_neon_w8(const uint8_t *a, int a_stride,
+                             const uint8_t *b, int b_stride,
+                             int w, int h, unsigned int *sse, int *sum) {
+  int i, j;
+  int16x8_t v_sum = vdupq_n_s16(0);
+  int32x4_t v_sse_lo = vdupq_n_s32(0);
+  int32x4_t v_sse_hi = vdupq_n_s32(0);
+
+  for (i = 0; i < h; ++i) {
+    for (j = 0; j < w; j += 8) {
+      const uint8x8_t v_a = vld1_u8(&a[j]);
+      const uint8x8_t v_b = vld1_u8(&b[j]);
+      const uint16x8_t v_diff = vsubl_u8(v_a, v_b);
+      const int16x8_t sv_diff = vreinterpretq_s16_u16(v_diff);
+      v_sum = vaddq_s16(v_sum, sv_diff);
+      v_sse_lo = vmlal_s16(v_sse_lo,
+                           vget_low_s16(sv_diff),
+                           vget_low_s16(sv_diff));
+      v_sse_hi = vmlal_s16(v_sse_hi,
+                           vget_high_s16(sv_diff),
+                           vget_high_s16(sv_diff));
+    }
+    a += a_stride;
+    b += b_stride;
+  }
+
+  *sum = horizontal_add_s16x8(v_sum);
+  *sse = (unsigned int)horizontal_add_s32x4(vaddq_s32(v_sse_lo, v_sse_hi));
+}
+
+static unsigned int variance8x8_neon(const uint8_t *a, int a_stride,
+                                     const uint8_t *b, int b_stride,
+                                     unsigned int *sse) {
+  int sum;
+  variance_neon_w8(a, a_stride, b, b_stride, 8, 8, sse, &sum);
+  return *sse - (((int64_t)sum * sum) / (8 * 8));
+}
+
+static void var_filter_block2d_bil_w8(const uint8_t *src_ptr,
+                                      uint8_t *output_ptr,
+                                      unsigned int src_pixels_per_line,
+                                      int pixel_step,
+                                      unsigned int output_height,
+                                      unsigned int output_width,
+                                      const uint16_t *vpx_filter) {
+  const uint8x8_t f0 = vmov_n_u8((uint8_t)vpx_filter[0]);
+  const uint8x8_t f1 = vmov_n_u8((uint8_t)vpx_filter[1]);
+  unsigned int i;
+  for (i = 0; i < output_height; ++i) {
+    const uint8x8_t src_0 = vld1_u8(&src_ptr[0]);
+    const uint8x8_t src_1 = vld1_u8(&src_ptr[pixel_step]);
+    const uint16x8_t a = vmull_u8(src_0, f0);
+    const uint16x8_t b = vmlal_u8(a, src_1, f1);
+    const uint8x8_t out = vrshrn_n_u16(b, FILTER_BITS);
+    vst1_u8(&output_ptr[0], out);
+    // Next row...
+    src_ptr += src_pixels_per_line;
+    output_ptr += output_width;
+  }
+}
+
+unsigned int vp8_sub_pixel_variance8x8_neon(
+        const unsigned char *src,
+        int src_stride,
+        int xoffset,
+        int yoffset,
+        const unsigned char *dst,
+        int dst_stride,
+        unsigned int *sse) {
+  DECLARE_ALIGNED(16, uint8_t, temp2[9 * 8]);
+  DECLARE_ALIGNED(16, uint8_t, fdata3[9 * 8]);
+  if (xoffset == 0) {
+    var_filter_block2d_bil_w8(src, temp2, src_stride, 8, 8,
+                              8, bilinear_taps_coeff[yoffset]);
+  } else if (yoffset == 0) {
+    var_filter_block2d_bil_w8(src, temp2, src_stride, 1,
+                              9, 8,
+                              bilinear_taps_coeff[xoffset]);
+  } else {
+    var_filter_block2d_bil_w8(src, fdata3, src_stride, 1,
+                              9, 8,
+                              bilinear_taps_coeff[xoffset]);
+    var_filter_block2d_bil_w8(fdata3, temp2, 8, 8, 8,
+                              8, bilinear_taps_coeff[yoffset]);
+  }
+  return variance8x8_neon(temp2, 8, dst, dst_stride, sse);
+}
diff --git a/media/libvpx/vp8/common/arm/variance_arm.c b/media/libvpx/vp8/common/arm/variance_arm.c
new file mode 100644
index 000000000..0f293f03d
--- /dev/null
+++ b/media/libvpx/vp8/common/arm/variance_arm.c
@@ -0,0 +1,137 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "./vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "vp8/common/variance.h"
+#include "vp8/common/filter.h"
+
+// TODO(johannkoenig): Move this to vpx_dsp or vp8/encoder
+#if CONFIG_VP8_ENCODER
+
+#if HAVE_MEDIA
+#include "vp8/common/arm/bilinearfilter_arm.h"
+
+unsigned int vp8_sub_pixel_variance8x8_armv6
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned short first_pass[10*8];
+    unsigned char  second_pass[8*8];
+    const short *HFilter, *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    vp8_filter_block2d_bil_first_pass_armv6(src_ptr, first_pass,
+                                            src_pixels_per_line,
+                                            9, 8, HFilter);
+    vp8_filter_block2d_bil_second_pass_armv6(first_pass, second_pass,
+                                             8, 8, 8, VFilter);
+
+    return vpx_variance8x8_media(second_pass, 8, dst_ptr,
+                                 dst_pixels_per_line, sse);
+}
+
+unsigned int vp8_sub_pixel_variance16x16_armv6
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned short first_pass[36*16];
+    unsigned char  second_pass[20*16];
+    const short *HFilter, *VFilter;
+    unsigned int var;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        var = vp8_variance_halfpixvar16x16_h_armv6(src_ptr, src_pixels_per_line,
+                                                   dst_ptr, dst_pixels_per_line, sse);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        var = vp8_variance_halfpixvar16x16_v_armv6(src_ptr, src_pixels_per_line,
+                                                   dst_ptr, dst_pixels_per_line, sse);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        var = vp8_variance_halfpixvar16x16_hv_armv6(src_ptr, src_pixels_per_line,
+                                                   dst_ptr, dst_pixels_per_line, sse);
+    }
+    else
+    {
+        HFilter = vp8_bilinear_filters[xoffset];
+        VFilter = vp8_bilinear_filters[yoffset];
+
+        vp8_filter_block2d_bil_first_pass_armv6(src_ptr, first_pass,
+                                                src_pixels_per_line,
+                                                17, 16, HFilter);
+        vp8_filter_block2d_bil_second_pass_armv6(first_pass, second_pass,
+                                                 16, 16, 16, VFilter);
+
+        var = vpx_variance16x16_media(second_pass, 16, dst_ptr,
+                                      dst_pixels_per_line, sse);
+    }
+    return var;
+}
+
+#endif  // HAVE_MEDIA
+
+
+#if HAVE_NEON
+
+extern unsigned int vp8_sub_pixel_variance16x16_neon_func
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+);
+
+unsigned int vp8_sub_pixel_variance16x16_neon
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+  if (xoffset == 4 && yoffset == 0)
+    return vp8_variance_halfpixvar16x16_h_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse);
+  else if (xoffset == 0 && yoffset == 4)
+    return vp8_variance_halfpixvar16x16_v_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse);
+  else if (xoffset == 4 && yoffset == 4)
+    return vp8_variance_halfpixvar16x16_hv_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse);
+  else
+    return vp8_sub_pixel_variance16x16_neon_func(src_ptr, src_pixels_per_line, xoffset, yoffset, dst_ptr, dst_pixels_per_line, sse);
+}
+
+#endif  // HAVE_NEON
+#endif  // CONFIG_VP8_ENCODER
diff --git a/media/libvpx/vp8/common/blockd.c b/media/libvpx/vp8/common/blockd.c
new file mode 100644
index 000000000..1fc3cd0ca
--- /dev/null
+++ b/media/libvpx/vp8/common/blockd.c
@@ -0,0 +1,22 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "blockd.h"
+#include "vpx_mem/vpx_mem.h"
+
+const unsigned char vp8_block2left[25] =
+{
+    0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8
+};
+const unsigned char vp8_block2above[25] =
+{
+    0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 8
+};
diff --git a/media/libvpx/vp8/common/blockd.h b/media/libvpx/vp8/common/blockd.h
new file mode 100644
index 000000000..192108a06
--- /dev/null
+++ b/media/libvpx/vp8/common/blockd.h
@@ -0,0 +1,312 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_BLOCKD_H_
+#define VP8_COMMON_BLOCKD_H_
+
+void vpx_log(const char *format, ...);
+
+#include "vpx_config.h"
+#include "vpx_scale/yv12config.h"
+#include "mv.h"
+#include "treecoder.h"
+#include "vpx_ports/mem.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*#define DCPRED 1*/
+#define DCPREDSIMTHRESH 0
+#define DCPREDCNTTHRESH 3
+
+#define MB_FEATURE_TREE_PROBS   3
+#define MAX_MB_SEGMENTS         4
+
+#define MAX_REF_LF_DELTAS       4
+#define MAX_MODE_LF_DELTAS      4
+
+/* Segment Feature Masks */
+#define SEGMENT_DELTADATA   0
+#define SEGMENT_ABSDATA     1
+
+typedef struct
+{
+    int r, c;
+} POS;
+
+#define PLANE_TYPE_Y_NO_DC    0
+#define PLANE_TYPE_Y2         1
+#define PLANE_TYPE_UV         2
+#define PLANE_TYPE_Y_WITH_DC  3
+
+
+typedef char ENTROPY_CONTEXT;
+typedef struct
+{
+    ENTROPY_CONTEXT y1[4];
+    ENTROPY_CONTEXT u[2];
+    ENTROPY_CONTEXT v[2];
+    ENTROPY_CONTEXT y2;
+} ENTROPY_CONTEXT_PLANES;
+
+extern const unsigned char vp8_block2left[25];
+extern const unsigned char vp8_block2above[25];
+
+#define VP8_COMBINEENTROPYCONTEXTS( Dest, A, B) \
+    Dest = (A)+(B);
+
+
+typedef enum
+{
+    KEY_FRAME = 0,
+    INTER_FRAME = 1
+} FRAME_TYPE;
+
+typedef enum
+{
+    DC_PRED,            /* average of above and left pixels */
+    V_PRED,             /* vertical prediction */
+    H_PRED,             /* horizontal prediction */
+    TM_PRED,            /* Truemotion prediction */
+    B_PRED,             /* block based prediction, each block has its own prediction mode */
+
+    NEARESTMV,
+    NEARMV,
+    ZEROMV,
+    NEWMV,
+    SPLITMV,
+
+    MB_MODE_COUNT
+} MB_PREDICTION_MODE;
+
+/* Macroblock level features */
+typedef enum
+{
+    MB_LVL_ALT_Q = 0,               /* Use alternate Quantizer .... */
+    MB_LVL_ALT_LF = 1,              /* Use alternate loop filter value... */
+    MB_LVL_MAX = 2                  /* Number of MB level features supported */
+
+} MB_LVL_FEATURES;
+
+/* Segment Feature Masks */
+#define SEGMENT_ALTQ    0x01
+#define SEGMENT_ALT_LF  0x02
+
+#define VP8_YMODES  (B_PRED + 1)
+#define VP8_UV_MODES (TM_PRED + 1)
+
+#define VP8_MVREFS (1 + SPLITMV - NEARESTMV)
+
+typedef enum
+{
+    B_DC_PRED,          /* average of above and left pixels */
+    B_TM_PRED,
+
+    B_VE_PRED,           /* vertical prediction */
+    B_HE_PRED,           /* horizontal prediction */
+
+    B_LD_PRED,
+    B_RD_PRED,
+
+    B_VR_PRED,
+    B_VL_PRED,
+    B_HD_PRED,
+    B_HU_PRED,
+
+    LEFT4X4,
+    ABOVE4X4,
+    ZERO4X4,
+    NEW4X4,
+
+    B_MODE_COUNT
+} B_PREDICTION_MODE;
+
+#define VP8_BINTRAMODES (B_HU_PRED + 1)  /* 10 */
+#define VP8_SUBMVREFS (1 + NEW4X4 - LEFT4X4)
+
+/* For keyframes, intra block modes are predicted by the (already decoded)
+   modes for the Y blocks to the left and above us; for interframes, there
+   is a single probability table. */
+
+union b_mode_info
+{
+    B_PREDICTION_MODE as_mode;
+    int_mv mv;
+};
+
+typedef enum
+{
+    INTRA_FRAME = 0,
+    LAST_FRAME = 1,
+    GOLDEN_FRAME = 2,
+    ALTREF_FRAME = 3,
+    MAX_REF_FRAMES = 4
+} MV_REFERENCE_FRAME;
+
+typedef struct
+{
+    uint8_t mode, uv_mode;
+    uint8_t ref_frame;
+    uint8_t is_4x4;
+    int_mv mv;
+
+    uint8_t partitioning;
+    uint8_t mb_skip_coeff;                                /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */
+    uint8_t need_to_clamp_mvs;
+    uint8_t segment_id;                  /* Which set of segmentation parameters should be used for this MB */
+} MB_MODE_INFO;
+
+typedef struct modeinfo
+{
+    MB_MODE_INFO mbmi;
+    union b_mode_info bmi[16];
+} MODE_INFO;
+
+#if CONFIG_MULTI_RES_ENCODING
+/* The mb-level information needed to be stored for higher-resolution encoder */
+typedef struct
+{
+    MB_PREDICTION_MODE mode;
+    MV_REFERENCE_FRAME ref_frame;
+    int_mv mv;
+    int dissim;    /* dissimilarity level of the macroblock */
+} LOWER_RES_MB_INFO;
+
+/* The frame-level information needed to be stored for higher-resolution
+ *  encoder */
+typedef struct
+{
+    FRAME_TYPE frame_type;
+    int is_frame_dropped;
+    // The frame rate for the lowest resolution.
+    double low_res_framerate;
+    /* The frame number of each reference frames */
+    unsigned int low_res_ref_frames[MAX_REF_FRAMES];
+    // The video frame counter value for the key frame, for lowest resolution.
+    unsigned int key_frame_counter_value;
+    LOWER_RES_MB_INFO *mb_info;
+} LOWER_RES_FRAME_INFO;
+#endif
+
+typedef struct blockd
+{
+    short *qcoeff;
+    short *dqcoeff;
+    unsigned char  *predictor;
+    short *dequant;
+
+    int offset;
+    char *eob;
+
+    union b_mode_info bmi;
+} BLOCKD;
+
+typedef void (*vp8_subpix_fn_t)(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
+
+typedef struct macroblockd
+{
+    DECLARE_ALIGNED(16, unsigned char,  predictor[384]);
+    DECLARE_ALIGNED(16, short, qcoeff[400]);
+    DECLARE_ALIGNED(16, short, dqcoeff[400]);
+    DECLARE_ALIGNED(16, char,  eobs[25]);
+
+    DECLARE_ALIGNED(16, short,  dequant_y1[16]);
+    DECLARE_ALIGNED(16, short,  dequant_y1_dc[16]);
+    DECLARE_ALIGNED(16, short,  dequant_y2[16]);
+    DECLARE_ALIGNED(16, short,  dequant_uv[16]);
+
+    /* 16 Y blocks, 4 U, 4 V, 1 DC 2nd order block, each with 16 entries. */
+    BLOCKD block[25];
+    int fullpixel_mask;
+
+    YV12_BUFFER_CONFIG pre; /* Filtered copy of previous frame reconstruction */
+    YV12_BUFFER_CONFIG dst;
+
+    MODE_INFO *mode_info_context;
+    int mode_info_stride;
+
+    FRAME_TYPE frame_type;
+
+    int up_available;
+    int left_available;
+
+    unsigned char *recon_above[3];
+    unsigned char *recon_left[3];
+    int recon_left_stride[2];
+
+    /* Y,U,V,Y2 */
+    ENTROPY_CONTEXT_PLANES *above_context;
+    ENTROPY_CONTEXT_PLANES *left_context;
+
+    /* 0 indicates segmentation at MB level is not enabled. Otherwise the individual bits indicate which features are active. */
+    unsigned char segmentation_enabled;
+
+    /* 0 (do not update) 1 (update) the macroblock segmentation map. */
+    unsigned char update_mb_segmentation_map;
+
+    /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
+    unsigned char update_mb_segmentation_data;
+
+    /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
+    unsigned char mb_segement_abs_delta;
+
+    /* Per frame flags that define which MB level features (such as quantizer or loop filter level) */
+    /* are enabled and when enabled the proabilities used to decode the per MB flags in MB_MODE_INFO */
+    vp8_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS];         /* Probability Tree used to code Segment number */
+
+    signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];            /* Segment parameters */
+
+    /* mode_based Loop filter adjustment */
+    unsigned char mode_ref_lf_delta_enabled;
+    unsigned char mode_ref_lf_delta_update;
+
+    /* Delta values have the range +/- MAX_LOOP_FILTER */
+    signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS];                /* 0 = Intra, Last, GF, ARF */
+    signed char ref_lf_deltas[MAX_REF_LF_DELTAS];                     /* 0 = Intra, Last, GF, ARF */
+    signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];                      /* 0 = BPRED, ZERO_MV, MV, SPLIT */
+    signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];                           /* 0 = BPRED, ZERO_MV, MV, SPLIT */
+
+    /* Distance of MB away from frame edges */
+    int mb_to_left_edge;
+    int mb_to_right_edge;
+    int mb_to_top_edge;
+    int mb_to_bottom_edge;
+
+
+
+    vp8_subpix_fn_t  subpixel_predict;
+    vp8_subpix_fn_t  subpixel_predict8x4;
+    vp8_subpix_fn_t  subpixel_predict8x8;
+    vp8_subpix_fn_t  subpixel_predict16x16;
+
+    void *current_bc;
+
+    int corrupted;
+
+#if ARCH_X86 || ARCH_X86_64
+    /* This is an intermediate buffer currently used in sub-pixel motion search
+     * to keep a copy of the reference area. This buffer can be used for other
+     * purpose.
+     */
+    DECLARE_ALIGNED(32, unsigned char, y_buf[22*32]);
+#endif
+} MACROBLOCKD;
+
+
+extern void vp8_build_block_doffsets(MACROBLOCKD *x);
+extern void vp8_setup_block_dptrs(MACROBLOCKD *x);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_BLOCKD_H_
diff --git a/media/libvpx/vp8/common/coefupdateprobs.h b/media/libvpx/vp8/common/coefupdateprobs.h
new file mode 100644
index 000000000..d96a19e74
--- /dev/null
+++ b/media/libvpx/vp8/common/coefupdateprobs.h
@@ -0,0 +1,197 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_COMMON_COEFUPDATEPROBS_H_
+#define VP8_COMMON_COEFUPDATEPROBS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Update probabilities for the nodes in the token entropy tree.
+   Generated file included by entropy.c */
+
+const vp8_prob vp8_coef_update_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES] =
+{
+    {
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255, },
+            {250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+    },
+    {
+        {
+            {217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255, },
+            {234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255, },
+        },
+        {
+            {255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+    },
+    {
+        {
+            {186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255, },
+            {251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255, },
+        },
+        {
+            {255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+    },
+    {
+        {
+            {248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255, },
+            {248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+        {
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+            {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, },
+        },
+    },
+};
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_COEFUPDATEPROBS_H_
diff --git a/media/libvpx/vp8/common/common.h b/media/libvpx/vp8/common/common.h
new file mode 100644
index 000000000..ba3d9f54d
--- /dev/null
+++ b/media/libvpx/vp8/common/common.h
@@ -0,0 +1,51 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_COMMON_H_
+#define VP8_COMMON_COMMON_H_
+
+#include <assert.h>
+
+/* Interface header for common constant data structures and lookup tables */
+
+#include "vpx_mem/vpx_mem.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MIN(x, y) (((x) < (y)) ? (x) : (y))
+#define MAX(x, y) (((x) > (y)) ? (x) : (y))
+
+/* Only need this for fixed-size arrays, for structs just assign. */
+
+#define vp8_copy( Dest, Src) { \
+        assert( sizeof( Dest) == sizeof( Src)); \
+        memcpy( Dest, Src, sizeof( Src)); \
+    }
+
+/* Use this for variably-sized arrays. */
+
+#define vp8_copy_array( Dest, Src, N) { \
+        assert( sizeof( *Dest) == sizeof( *Src)); \
+        memcpy( Dest, Src, N * sizeof( *Src)); \
+    }
+
+#define vp8_zero( Dest)  memset( &Dest, 0, sizeof( Dest));
+
+#define vp8_zero_array( Dest, N)  memset( Dest, 0, N * sizeof( *Dest));
+
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_COMMON_H_
diff --git a/media/libvpx/vp8/common/copy_c.c b/media/libvpx/vp8/common/copy_c.c
new file mode 100644
index 000000000..e3392913f
--- /dev/null
+++ b/media/libvpx/vp8/common/copy_c.c
@@ -0,0 +1,32 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <string.h>
+
+#include "./vp8_rtcd.h"
+#include "vpx/vpx_integer.h"
+
+/* Copy 2 macroblocks to a buffer */
+void vp8_copy32xn_c(const unsigned char *src_ptr, int src_stride,
+                    unsigned char *dst_ptr, int dst_stride,
+                    int height)
+{
+    int r;
+
+    for (r = 0; r < height; r++)
+    {
+        memcpy(dst_ptr, src_ptr, 32);
+
+        src_ptr += src_stride;
+        dst_ptr += dst_stride;
+
+    }
+}
diff --git a/media/libvpx/vp8/common/debugmodes.c b/media/libvpx/vp8/common/debugmodes.c
new file mode 100644
index 000000000..159fddc6a
--- /dev/null
+++ b/media/libvpx/vp8/common/debugmodes.c
@@ -0,0 +1,155 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <stdio.h>
+#include "blockd.h"
+
+
+void vp8_print_modes_and_motion_vectors(MODE_INFO *mi, int rows, int cols, int frame)
+{
+
+    int mb_row;
+    int mb_col;
+    int mb_index = 0;
+    FILE *mvs = fopen("mvs.stt", "a");
+
+    /* print out the macroblock Y modes */
+    mb_index = 0;
+    fprintf(mvs, "Mb Modes for Frame %d\n", frame);
+
+    for (mb_row = 0; mb_row < rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < cols; mb_col++)
+        {
+
+            fprintf(mvs, "%2d ", mi[mb_index].mbmi.mode);
+
+            mb_index++;
+        }
+
+        fprintf(mvs, "\n");
+        mb_index++;
+    }
+
+    fprintf(mvs, "\n");
+
+    mb_index = 0;
+    fprintf(mvs, "Mb mv ref for Frame %d\n", frame);
+
+    for (mb_row = 0; mb_row < rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < cols; mb_col++)
+        {
+
+            fprintf(mvs, "%2d ", mi[mb_index].mbmi.ref_frame);
+
+            mb_index++;
+        }
+
+        fprintf(mvs, "\n");
+        mb_index++;
+    }
+
+    fprintf(mvs, "\n");
+
+    /* print out the macroblock UV modes */
+    mb_index = 0;
+    fprintf(mvs, "UV Modes for Frame %d\n", frame);
+
+    for (mb_row = 0; mb_row < rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < cols; mb_col++)
+        {
+
+            fprintf(mvs, "%2d ", mi[mb_index].mbmi.uv_mode);
+
+            mb_index++;
+        }
+
+        mb_index++;
+        fprintf(mvs, "\n");
+    }
+
+    fprintf(mvs, "\n");
+
+    /* print out the block modes */
+    fprintf(mvs, "Mbs for Frame %d\n", frame);
+    {
+        int b_row;
+
+        for (b_row = 0; b_row < 4 * rows; b_row++)
+        {
+            int b_col;
+            int bindex;
+
+            for (b_col = 0; b_col < 4 * cols; b_col++)
+            {
+                mb_index = (b_row >> 2) * (cols + 1) + (b_col >> 2);
+                bindex = (b_row & 3) * 4 + (b_col & 3);
+
+                if (mi[mb_index].mbmi.mode == B_PRED)
+                    fprintf(mvs, "%2d ", mi[mb_index].bmi[bindex].as_mode);
+                else
+                    fprintf(mvs, "xx ");
+
+            }
+
+            fprintf(mvs, "\n");
+        }
+    }
+    fprintf(mvs, "\n");
+
+    /* print out the macroblock mvs */
+    mb_index = 0;
+    fprintf(mvs, "MVs for Frame %d\n", frame);
+
+    for (mb_row = 0; mb_row < rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < cols; mb_col++)
+        {
+            fprintf(mvs, "%5d:%-5d", mi[mb_index].mbmi.mv.as_mv.row / 2, mi[mb_index].mbmi.mv.as_mv.col / 2);
+
+            mb_index++;
+        }
+
+        mb_index++;
+        fprintf(mvs, "\n");
+    }
+
+    fprintf(mvs, "\n");
+
+
+    /* print out the block modes */
+    fprintf(mvs, "MVs for Frame %d\n", frame);
+    {
+        int b_row;
+
+        for (b_row = 0; b_row < 4 * rows; b_row++)
+        {
+            int b_col;
+            int bindex;
+
+            for (b_col = 0; b_col < 4 * cols; b_col++)
+            {
+                mb_index = (b_row >> 2) * (cols + 1) + (b_col >> 2);
+                bindex = (b_row & 3) * 4 + (b_col & 3);
+                fprintf(mvs, "%3d:%-3d ", mi[mb_index].bmi[bindex].mv.as_mv.row, mi[mb_index].bmi[bindex].mv.as_mv.col);
+
+            }
+
+            fprintf(mvs, "\n");
+        }
+    }
+    fprintf(mvs, "\n");
+
+
+    fclose(mvs);
+}
diff --git a/media/libvpx/vp8/common/default_coef_probs.h b/media/libvpx/vp8/common/default_coef_probs.h
new file mode 100644
index 000000000..4d69e4be6
--- /dev/null
+++ b/media/libvpx/vp8/common/default_coef_probs.h
@@ -0,0 +1,200 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+*/
+
+#ifndef VP8_COMMON_DEFAULT_COEF_PROBS_H_
+#define VP8_COMMON_DEFAULT_COEF_PROBS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*Generated file, included by entropy.c*/
+
+
+static const vp8_prob default_coef_probs [BLOCK_TYPES]
+                                         [COEF_BANDS]
+                                         [PREV_COEF_CONTEXTS]
+                                         [ENTROPY_NODES] =
+{
+    { /* Block Type ( 0 ) */
+        { /* Coeff Band ( 0 )*/
+            { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 1 )*/
+            { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
+            { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
+            { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 2 )*/
+            {   1,  98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
+            { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
+            {  78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 3 )*/
+            {   1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
+            { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
+            {  77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 4 )*/
+            {   1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
+            { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
+            {  37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 5 )*/
+            {   1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
+            { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
+            { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 6 )*/
+            {   1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
+            { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
+            {  80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 7 )*/
+            {   1,   1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 246,   1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
+        }
+    },
+    { /* Block Type ( 1 ) */
+        { /* Coeff Band ( 0 )*/
+            { 198,  35, 237, 223, 193, 187, 162, 160, 145, 155,  62 },
+            { 131,  45, 198, 221, 172, 176, 220, 157, 252, 221,   1 },
+            {  68,  47, 146, 208, 149, 167, 221, 162, 255, 223, 128 }
+        },
+        { /* Coeff Band ( 1 )*/
+            {   1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
+            { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
+            {  81,  99, 181, 242, 176, 190, 249, 202, 255, 255, 128 }
+        },
+        { /* Coeff Band ( 2 )*/
+            {   1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
+            {  99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
+            {  23,  91, 163, 242, 170, 187, 247, 210, 255, 255, 128 }
+        },
+        { /* Coeff Band ( 3 )*/
+            {   1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
+            { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
+            {  44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 4 )*/
+            {   1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
+            {  94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
+            {  22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 5 )*/
+            {   1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
+            { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
+            {  35,  77, 181, 251, 193, 211, 255, 205, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 6 )*/
+            {   1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
+            { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
+            {  45,  99, 188, 251, 195, 217, 255, 224, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 7 )*/
+            {   1,   1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
+            { 203,   1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
+            { 137,   1, 177, 255, 224, 255, 128, 128, 128, 128, 128 }
+        }
+    },
+    { /* Block Type ( 2 ) */
+        { /* Coeff Band ( 0 )*/
+            { 253,   9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
+            { 175,  13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
+            {  73,  17, 171, 221, 161, 179, 236, 167, 255, 234, 128 }
+        },
+        { /* Coeff Band ( 1 )*/
+            {   1,  95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
+            { 239,  90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
+            { 155,  77, 195, 248, 188, 195, 255, 255, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 2 )*/
+            {   1,  24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
+            { 201,  51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
+            {  69,  46, 190, 239, 201, 218, 255, 228, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 3 )*/
+            {   1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
+            { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
+            { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 4 )*/
+            {   1,  16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
+            { 190,  36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
+            { 149,   1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 5 )*/
+            {   1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 6 )*/
+            {   1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
+            { 213,  62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
+            {  55,  93, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 7 )*/
+            { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
+        }
+    },
+    { /* Block Type ( 3 ) */
+        { /* Coeff Band ( 0 )*/
+            { 202,  24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
+            { 126,  38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
+            {  61,  46, 138, 219, 151, 178, 240, 170, 255, 216, 128 }
+        },
+        { /* Coeff Band ( 1 )*/
+            {   1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
+            { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
+            {  39,  77, 162, 232, 172, 180, 245, 178, 255, 255, 128 }
+        },
+        { /* Coeff Band ( 2 )*/
+            {   1,  52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
+            { 124,  74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
+            {  24,  71, 130, 219, 154, 170, 243, 182, 255, 255, 128 }
+        },
+        { /* Coeff Band ( 3 )*/
+            {   1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
+            { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
+            {  28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 }
+        },
+        { /* Coeff Band ( 4 )*/
+            {   1,  81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
+            { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
+            {  20,  95, 153, 243, 164, 173, 255, 203, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 5 )*/
+            {   1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
+            { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
+            {  47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 6 )*/
+            {   1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
+            { 141,  84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
+            {  42,  80, 160, 240, 162, 185, 255, 205, 128, 128, 128 }
+        },
+        { /* Coeff Band ( 7 )*/
+            {   1,   1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 244,   1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
+            { 238,   1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
+        }
+    }
+};
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_DEFAULT_COEF_PROBS_H_
diff --git a/media/libvpx/vp8/common/dequantize.c b/media/libvpx/vp8/common/dequantize.c
new file mode 100644
index 000000000..f8b04fa4e
--- /dev/null
+++ b/media/libvpx/vp8/common/dequantize.c
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vp8/common/blockd.h"
+#include "vpx_mem/vpx_mem.h"
+
+void vp8_dequantize_b_c(BLOCKD *d, short *DQC)
+{
+    int i;
+    short *DQ  = d->dqcoeff;
+    short *Q   = d->qcoeff;
+
+    for (i = 0; i < 16; i++)
+    {
+        DQ[i] = Q[i] * DQC[i];
+    }
+}
+
+void vp8_dequant_idct_add_c(short *input, short *dq,
+                            unsigned char *dest, int stride)
+{
+    int i;
+
+    for (i = 0; i < 16; i++)
+    {
+        input[i] = dq[i] * input[i];
+    }
+
+    vp8_short_idct4x4llm_c(input, dest, stride, dest, stride);
+
+    memset(input, 0, 32);
+
+}
diff --git a/media/libvpx/vp8/common/entropy.c b/media/libvpx/vp8/common/entropy.c
new file mode 100644
index 000000000..c00e565f0
--- /dev/null
+++ b/media/libvpx/vp8/common/entropy.c
@@ -0,0 +1,188 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "entropy.h"
+#include "blockd.h"
+#include "onyxc_int.h"
+#include "vpx_mem/vpx_mem.h"
+
+#include "coefupdateprobs.h"
+
+DECLARE_ALIGNED(16, const unsigned char, vp8_norm[256]) =
+{
+    0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+DECLARE_ALIGNED(16, const unsigned char, vp8_coef_bands[16]) =
+{ 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7};
+
+DECLARE_ALIGNED(16, const unsigned char,
+                vp8_prev_token_class[MAX_ENTROPY_TOKENS]) =
+{ 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0};
+
+DECLARE_ALIGNED(16, const int, vp8_default_zig_zag1d[16]) =
+{
+    0,  1,  4,  8,
+    5,  2,  3,  6,
+    9, 12, 13, 10,
+    7, 11, 14, 15,
+};
+
+DECLARE_ALIGNED(16, const short, vp8_default_inv_zig_zag[16]) =
+{
+    1,  2,  6,  7,
+    3,  5,  8, 13,
+    4,  9, 12, 14,
+   10, 11, 15, 16
+};
+
+/* vp8_default_zig_zag_mask generated with:
+
+    void vp8_init_scan_order_mask()
+    {
+        int i;
+
+        for (i = 0; i < 16; i++)
+        {
+            vp8_default_zig_zag_mask[vp8_default_zig_zag1d[i]] = 1 << i;
+        }
+
+    }
+*/
+DECLARE_ALIGNED(16, const short, vp8_default_zig_zag_mask[16]) =
+{
+     1,    2,    32,     64,
+     4,   16,   128,   4096,
+     8,  256,  2048,   8192,
+   512, 1024, 16384, -32768
+};
+
+const int vp8_mb_feature_data_bits[MB_LVL_MAX] = {7, 6};
+
+/* Array indices are identical to previously-existing CONTEXT_NODE indices */
+
+const vp8_tree_index vp8_coef_tree[ 22] =     /* corresponding _CONTEXT_NODEs */
+{
+    -DCT_EOB_TOKEN, 2,                             /* 0 = EOB */
+    -ZERO_TOKEN, 4,                               /* 1 = ZERO */
+    -ONE_TOKEN, 6,                               /* 2 = ONE */
+    8, 12,                                      /* 3 = LOW_VAL */
+    -TWO_TOKEN, 10,                            /* 4 = TWO */
+    -THREE_TOKEN, -FOUR_TOKEN,                /* 5 = THREE */
+    14, 16,                                    /* 6 = HIGH_LOW */
+    -DCT_VAL_CATEGORY1, -DCT_VAL_CATEGORY2,   /* 7 = CAT_ONE */
+    18, 20,                                   /* 8 = CAT_THREEFOUR */
+    -DCT_VAL_CATEGORY3, -DCT_VAL_CATEGORY4,  /* 9 = CAT_THREE */
+    -DCT_VAL_CATEGORY5, -DCT_VAL_CATEGORY6   /* 10 = CAT_FIVE */
+};
+
+/* vp8_coef_encodings generated with:
+    vp8_tokens_from_tree(vp8_coef_encodings, vp8_coef_tree);
+*/
+vp8_token vp8_coef_encodings[MAX_ENTROPY_TOKENS] =
+{
+    {2, 2},
+    {6, 3},
+    {28, 5},
+    {58, 6},
+    {59, 6},
+    {60, 6},
+    {61, 6},
+    {124, 7},
+    {125, 7},
+    {126, 7},
+    {127, 7},
+    {0, 1}
+};
+
+/* Trees for extra bits.  Probabilities are constant and
+   do not depend on previously encoded bits */
+
+static const vp8_prob Pcat1[] = { 159};
+static const vp8_prob Pcat2[] = { 165, 145};
+static const vp8_prob Pcat3[] = { 173, 148, 140};
+static const vp8_prob Pcat4[] = { 176, 155, 140, 135};
+static const vp8_prob Pcat5[] = { 180, 157, 141, 134, 130};
+static const vp8_prob Pcat6[] =
+{ 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129};
+
+
+/* tree index tables generated with:
+
+    void init_bit_tree(vp8_tree_index *p, int n)
+    {
+        int i = 0;
+
+        while (++i < n)
+        {
+            p[0] = p[1] = i << 1;
+            p += 2;
+        }
+
+        p[0] = p[1] = 0;
+    }
+
+    void init_bit_trees()
+    {
+        init_bit_tree(cat1, 1);
+        init_bit_tree(cat2, 2);
+        init_bit_tree(cat3, 3);
+        init_bit_tree(cat4, 4);
+        init_bit_tree(cat5, 5);
+        init_bit_tree(cat6, 11);
+    }
+*/
+
+static const vp8_tree_index cat1[2] = { 0, 0 };
+static const vp8_tree_index cat2[4] = { 2, 2, 0, 0 };
+static const vp8_tree_index cat3[6] = { 2, 2, 4, 4, 0, 0 };
+static const vp8_tree_index cat4[8] = { 2, 2, 4, 4, 6, 6, 0, 0 };
+static const vp8_tree_index cat5[10] = { 2, 2, 4, 4, 6, 6, 8, 8, 0, 0 };
+static const vp8_tree_index cat6[22] = { 2, 2, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12,
+                                        14, 14, 16, 16, 18, 18, 20, 20, 0, 0 };
+
+const vp8_extra_bit_struct vp8_extra_bits[12] =
+{
+    { 0, 0, 0, 0},
+    { 0, 0, 0, 1},
+    { 0, 0, 0, 2},
+    { 0, 0, 0, 3},
+    { 0, 0, 0, 4},
+    { cat1, Pcat1, 1, 5},
+    { cat2, Pcat2, 2, 7},
+    { cat3, Pcat3, 3, 11},
+    { cat4, Pcat4, 4, 19},
+    { cat5, Pcat5, 5, 35},
+    { cat6, Pcat6, 11, 67},
+    { 0, 0, 0, 0}
+};
+
+#include "default_coef_probs.h"
+
+void vp8_default_coef_probs(VP8_COMMON *pc)
+{
+    memcpy(pc->fc.coef_probs, default_coef_probs, sizeof(default_coef_probs));
+}
+
diff --git a/media/libvpx/vp8/common/entropy.h b/media/libvpx/vp8/common/entropy.h
new file mode 100644
index 000000000..a90bab4ba
--- /dev/null
+++ b/media/libvpx/vp8/common/entropy.h
@@ -0,0 +1,109 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ENTROPY_H_
+#define VP8_COMMON_ENTROPY_H_
+
+#include "treecoder.h"
+#include "blockd.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Coefficient token alphabet */
+
+#define ZERO_TOKEN              0       /* 0         Extra Bits 0+0 */
+#define ONE_TOKEN               1       /* 1         Extra Bits 0+1 */
+#define TWO_TOKEN               2       /* 2         Extra Bits 0+1 */
+#define THREE_TOKEN             3       /* 3         Extra Bits 0+1 */
+#define FOUR_TOKEN              4       /* 4         Extra Bits 0+1 */
+#define DCT_VAL_CATEGORY1       5       /* 5-6       Extra Bits 1+1 */
+#define DCT_VAL_CATEGORY2       6       /* 7-10      Extra Bits 2+1 */
+#define DCT_VAL_CATEGORY3       7       /* 11-18     Extra Bits 3+1 */
+#define DCT_VAL_CATEGORY4       8       /* 19-34     Extra Bits 4+1 */
+#define DCT_VAL_CATEGORY5       9       /* 35-66     Extra Bits 5+1 */
+#define DCT_VAL_CATEGORY6       10      /* 67+       Extra Bits 11+1 */
+#define DCT_EOB_TOKEN           11      /* EOB       Extra Bits 0+0 */
+
+#define MAX_ENTROPY_TOKENS 12
+#define ENTROPY_NODES 11
+
+extern const vp8_tree_index vp8_coef_tree[];
+
+extern const struct vp8_token_struct vp8_coef_encodings[MAX_ENTROPY_TOKENS];
+
+typedef struct
+{
+    vp8_tree_p tree;
+    const vp8_prob *prob;
+    int Len;
+    int base_val;
+} vp8_extra_bit_struct;
+
+extern const vp8_extra_bit_struct vp8_extra_bits[12];    /* indexed by token value */
+
+#define PROB_UPDATE_BASELINE_COST   7
+
+#define MAX_PROB                255
+#define DCT_MAX_VALUE           2048
+
+
+/* Coefficients are predicted via a 3-dimensional probability table. */
+
+/* Outside dimension.  0 = Y no DC, 1 = Y2, 2 = UV, 3 = Y with DC */
+
+#define BLOCK_TYPES 4
+
+/* Middle dimension is a coarsening of the coefficient's
+   position within the 4x4 DCT. */
+
+#define COEF_BANDS 8
+extern DECLARE_ALIGNED(16, const unsigned char, vp8_coef_bands[16]);
+
+/* Inside dimension is 3-valued measure of nearby complexity, that is,
+   the extent to which nearby coefficients are nonzero.  For the first
+   coefficient (DC, unless block type is 0), we look at the (already encoded)
+   blocks above and to the left of the current block.  The context index is
+   then the number (0,1,or 2) of these blocks having nonzero coefficients.
+   After decoding a coefficient, the measure is roughly the size of the
+   most recently decoded coefficient (0 for 0, 1 for 1, 2 for >1).
+   Note that the intuitive meaning of this measure changes as coefficients
+   are decoded, e.g., prior to the first token, a zero means that my neighbors
+   are empty while, after the first token, because of the use of end-of-block,
+   a zero means we just decoded a zero and hence guarantees that a non-zero
+   coefficient will appear later in this block.  However, this shift
+   in meaning is perfectly OK because our context depends also on the
+   coefficient band (and since zigzag positions 0, 1, and 2 are in
+   distinct bands). */
+
+/*# define DC_TOKEN_CONTEXTS        3*/ /* 00, 0!0, !0!0 */
+#   define PREV_COEF_CONTEXTS       3
+
+extern DECLARE_ALIGNED(16, const unsigned char, vp8_prev_token_class[MAX_ENTROPY_TOKENS]);
+
+extern const vp8_prob vp8_coef_update_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
+
+
+struct VP8Common;
+void vp8_default_coef_probs(struct VP8Common *);
+
+extern DECLARE_ALIGNED(16, const int, vp8_default_zig_zag1d[16]);
+extern DECLARE_ALIGNED(16, const short, vp8_default_inv_zig_zag[16]);
+extern DECLARE_ALIGNED(16, const short, vp8_default_zig_zag_mask[16]);
+extern const int vp8_mb_feature_data_bits[MB_LVL_MAX];
+
+void vp8_coef_tree_initialize(void);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_ENTROPY_H_
diff --git a/media/libvpx/vp8/common/entropymode.c b/media/libvpx/vp8/common/entropymode.c
new file mode 100644
index 000000000..8981a8d3c
--- /dev/null
+++ b/media/libvpx/vp8/common/entropymode.c
@@ -0,0 +1,171 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#define USE_PREBUILT_TABLES
+
+#include "entropymode.h"
+#include "entropy.h"
+#include "vpx_mem/vpx_mem.h"
+
+#include "vp8_entropymodedata.h"
+
+int vp8_mv_cont(const int_mv *l, const int_mv *a)
+{
+    int lez = (l->as_int == 0);
+    int aez = (a->as_int == 0);
+    int lea = (l->as_int == a->as_int);
+
+    if (lea && lez)
+        return SUBMVREF_LEFT_ABOVE_ZED;
+
+    if (lea)
+        return SUBMVREF_LEFT_ABOVE_SAME;
+
+    if (aez)
+        return SUBMVREF_ABOVE_ZED;
+
+    if (lez)
+        return SUBMVREF_LEFT_ZED;
+
+    return SUBMVREF_NORMAL;
+}
+
+static const vp8_prob sub_mv_ref_prob [VP8_SUBMVREFS-1] = { 180, 162, 25};
+
+const vp8_prob vp8_sub_mv_ref_prob2 [SUBMVREF_COUNT][VP8_SUBMVREFS-1] =
+{
+    { 147, 136, 18 },
+    { 106, 145, 1  },
+    { 179, 121, 1  },
+    { 223, 1  , 34 },
+    { 208, 1  , 1  }
+};
+
+
+
+const vp8_mbsplit vp8_mbsplits [VP8_NUMMBSPLITS] =
+{
+    {
+        0,  0,  0,  0,
+        0,  0,  0,  0,
+        1,  1,  1,  1,
+        1,  1,  1,  1,
+    },
+    {
+        0,  0,  1,  1,
+        0,  0,  1,  1,
+        0,  0,  1,  1,
+        0,  0,  1,  1,
+    },
+    {
+        0,  0,  1,  1,
+        0,  0,  1,  1,
+        2,  2,  3,  3,
+        2,  2,  3,  3,
+    },
+    {
+        0,  1,  2,  3,
+        4,  5,  6,  7,
+        8,  9,  10, 11,
+        12, 13, 14, 15,
+    }
+};
+
+const int vp8_mbsplit_count [VP8_NUMMBSPLITS] = { 2, 2, 4, 16};
+
+const vp8_prob vp8_mbsplit_probs [VP8_NUMMBSPLITS-1] = { 110, 111, 150};
+
+
+/* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */
+
+const vp8_tree_index vp8_bmode_tree[18] =     /* INTRAMODECONTEXTNODE value */
+{
+    -B_DC_PRED, 2,                             /* 0 = DC_NODE */
+    -B_TM_PRED, 4,                            /* 1 = TM_NODE */
+    -B_VE_PRED, 6,                           /* 2 = VE_NODE */
+    8, 12,                                  /* 3 = COM_NODE */
+    -B_HE_PRED, 10,                        /* 4 = HE_NODE */
+    -B_RD_PRED, -B_VR_PRED,               /* 5 = RD_NODE */
+    -B_LD_PRED, 14,                        /* 6 = LD_NODE */
+    -B_VL_PRED, 16,                      /* 7 = VL_NODE */
+    -B_HD_PRED, -B_HU_PRED             /* 8 = HD_NODE */
+};
+
+/* Again, these trees use the same probability indices as their
+   explicitly-programmed predecessors. */
+
+const vp8_tree_index vp8_ymode_tree[8] =
+{
+    -DC_PRED, 2,
+    4, 6,
+    -V_PRED, -H_PRED,
+    -TM_PRED, -B_PRED
+};
+
+const vp8_tree_index vp8_kf_ymode_tree[8] =
+{
+    -B_PRED, 2,
+    4, 6,
+    -DC_PRED, -V_PRED,
+    -H_PRED, -TM_PRED
+};
+
+const vp8_tree_index vp8_uv_mode_tree[6] =
+{
+    -DC_PRED, 2,
+    -V_PRED, 4,
+    -H_PRED, -TM_PRED
+};
+
+const vp8_tree_index vp8_mbsplit_tree[6] =
+{
+    -3, 2,
+    -2, 4,
+    -0, -1
+};
+
+const vp8_tree_index vp8_mv_ref_tree[8] =
+{
+    -ZEROMV, 2,
+    -NEARESTMV, 4,
+    -NEARMV, 6,
+    -NEWMV, -SPLITMV
+};
+
+const vp8_tree_index vp8_sub_mv_ref_tree[6] =
+{
+    -LEFT4X4, 2,
+    -ABOVE4X4, 4,
+    -ZERO4X4, -NEW4X4
+};
+
+const vp8_tree_index vp8_small_mvtree [14] =
+{
+    2, 8,
+    4, 6,
+    -0, -1,
+    -2, -3,
+    10, 12,
+    -4, -5,
+    -6, -7
+};
+
+void vp8_init_mbmode_probs(VP8_COMMON *x)
+{
+    memcpy(x->fc.ymode_prob, vp8_ymode_prob, sizeof(vp8_ymode_prob));
+    memcpy(x->fc.uv_mode_prob, vp8_uv_mode_prob, sizeof(vp8_uv_mode_prob));
+    memcpy(x->fc.sub_mv_ref_prob, sub_mv_ref_prob, sizeof(sub_mv_ref_prob));
+}
+
+void vp8_default_bmode_probs(vp8_prob p [VP8_BINTRAMODES-1])
+{
+    memcpy(p, vp8_bmode_prob, sizeof(vp8_bmode_prob));
+}
+
diff --git a/media/libvpx/vp8/common/entropymode.h b/media/libvpx/vp8/common/entropymode.h
new file mode 100644
index 000000000..81bdfc4b8
--- /dev/null
+++ b/media/libvpx/vp8/common/entropymode.h
@@ -0,0 +1,88 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ENTROPYMODE_H_
+#define VP8_COMMON_ENTROPYMODE_H_
+
+#include "onyxc_int.h"
+#include "treecoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum
+{
+    SUBMVREF_NORMAL,
+    SUBMVREF_LEFT_ZED,
+    SUBMVREF_ABOVE_ZED,
+    SUBMVREF_LEFT_ABOVE_SAME,
+    SUBMVREF_LEFT_ABOVE_ZED
+} sumvfref_t;
+
+typedef int vp8_mbsplit[16];
+
+#define VP8_NUMMBSPLITS 4
+
+extern const vp8_mbsplit vp8_mbsplits [VP8_NUMMBSPLITS];
+
+extern const int vp8_mbsplit_count [VP8_NUMMBSPLITS];    /* # of subsets */
+
+extern const vp8_prob vp8_mbsplit_probs [VP8_NUMMBSPLITS-1];
+
+extern int vp8_mv_cont(const int_mv *l, const int_mv *a);
+#define SUBMVREF_COUNT 5
+extern const vp8_prob vp8_sub_mv_ref_prob2 [SUBMVREF_COUNT][VP8_SUBMVREFS-1];
+
+
+extern const unsigned int vp8_kf_default_bmode_counts [VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES];
+
+
+extern const vp8_tree_index vp8_bmode_tree[];
+
+extern const vp8_tree_index  vp8_ymode_tree[];
+extern const vp8_tree_index  vp8_kf_ymode_tree[];
+extern const vp8_tree_index  vp8_uv_mode_tree[];
+
+extern const vp8_tree_index  vp8_mbsplit_tree[];
+extern const vp8_tree_index  vp8_mv_ref_tree[];
+extern const vp8_tree_index  vp8_sub_mv_ref_tree[];
+
+extern const struct vp8_token_struct vp8_bmode_encodings[VP8_BINTRAMODES];
+extern const struct vp8_token_struct vp8_ymode_encodings[VP8_YMODES];
+extern const struct vp8_token_struct vp8_kf_ymode_encodings[VP8_YMODES];
+extern const struct vp8_token_struct vp8_uv_mode_encodings[VP8_UV_MODES];
+extern const struct vp8_token_struct vp8_mbsplit_encodings[VP8_NUMMBSPLITS];
+
+/* Inter mode values do not start at zero */
+
+extern const struct vp8_token_struct vp8_mv_ref_encoding_array[VP8_MVREFS];
+extern const struct vp8_token_struct vp8_sub_mv_ref_encoding_array[VP8_SUBMVREFS];
+
+extern const vp8_tree_index vp8_small_mvtree[];
+
+extern const struct vp8_token_struct vp8_small_mvencodings[8];
+
+/* Key frame default mode probs */
+extern const vp8_prob vp8_kf_bmode_prob[VP8_BINTRAMODES][VP8_BINTRAMODES]
+[VP8_BINTRAMODES-1];
+extern const vp8_prob vp8_kf_uv_mode_prob[VP8_UV_MODES-1];
+extern const vp8_prob vp8_kf_ymode_prob[VP8_YMODES-1];
+
+void vp8_init_mbmode_probs(VP8_COMMON *x);
+void vp8_default_bmode_probs(vp8_prob dest [VP8_BINTRAMODES-1]);
+void vp8_kf_default_bmode_probs(vp8_prob dest [VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES-1]);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_ENTROPYMODE_H_
diff --git a/media/libvpx/vp8/common/entropymv.c b/media/libvpx/vp8/common/entropymv.c
new file mode 100644
index 000000000..e5df1f095
--- /dev/null
+++ b/media/libvpx/vp8/common/entropymv.c
@@ -0,0 +1,49 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "entropymv.h"
+
+const MV_CONTEXT vp8_mv_update_probs[2] =
+{
+    {{
+        237,
+        246,
+        253, 253, 254, 254, 254, 254, 254,
+        254, 254, 254, 254, 254, 250, 250, 252, 254, 254
+    }},
+    {{
+        231,
+        243,
+        245, 253, 254, 254, 254, 254, 254,
+        254, 254, 254, 254, 254, 251, 251, 254, 254, 254
+    }}
+};
+const MV_CONTEXT vp8_default_mv_context[2] =
+{
+    {{
+        /* row */
+        162,                                        /* is short */
+        128,                                        /* sign */
+        225, 146, 172, 147, 214,  39, 156,          /* short tree */
+        128, 129, 132,  75, 145, 178, 206, 239, 254, 254 /* long bits */
+    }},
+
+
+
+    {{
+        /* same for column */
+        164,                                        /* is short */
+        128,
+        204, 170, 119, 235, 140, 230, 228,
+        128, 130, 130,  74, 148, 180, 203, 236, 254, 254 /* long bits */
+
+    }}
+};
diff --git a/media/libvpx/vp8/common/entropymv.h b/media/libvpx/vp8/common/entropymv.h
new file mode 100644
index 000000000..42840d58a
--- /dev/null
+++ b/media/libvpx/vp8/common/entropymv.h
@@ -0,0 +1,52 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ENTROPYMV_H_
+#define VP8_COMMON_ENTROPYMV_H_
+
+#include "treecoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum
+{
+    mv_max  = 1023,              /* max absolute value of a MV component */
+    MVvals = (2 * mv_max) + 1,   /* # possible values "" */
+    mvfp_max  = 255,              /* max absolute value of a full pixel MV component */
+    MVfpvals = (2 * mvfp_max) +1, /* # possible full pixel MV values */
+
+    mvlong_width = 10,       /* Large MVs have 9 bit magnitudes */
+    mvnum_short = 8,         /* magnitudes 0 through 7 */
+
+    /* probability offsets for coding each MV component */
+
+    mvpis_short = 0,         /* short (<= 7) vs long (>= 8) */
+    MVPsign,                /* sign for non-zero */
+    MVPshort,               /* 8 short values = 7-position tree */
+
+    MVPbits = MVPshort + mvnum_short - 1, /* mvlong_width long value bits */
+    MVPcount = MVPbits + mvlong_width    /* (with independent probabilities) */
+};
+
+typedef struct mv_context
+{
+    vp8_prob prob[MVPcount];  /* often come in row, col pairs */
+} MV_CONTEXT;
+
+extern const MV_CONTEXT vp8_mv_update_probs[2], vp8_default_mv_context[2];
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_ENTROPYMV_H_
diff --git a/media/libvpx/vp8/common/extend.c b/media/libvpx/vp8/common/extend.c
new file mode 100644
index 000000000..2d938ad78
--- /dev/null
+++ b/media/libvpx/vp8/common/extend.c
@@ -0,0 +1,188 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "extend.h"
+#include "vpx_mem/vpx_mem.h"
+
+
+static void copy_and_extend_plane
+(
+    unsigned char *s, /* source */
+    int sp,           /* source pitch */
+    unsigned char *d, /* destination */
+    int dp,           /* destination pitch */
+    int h,            /* height */
+    int w,            /* width */
+    int et,           /* extend top border */
+    int el,           /* extend left border */
+    int eb,           /* extend bottom border */
+    int er            /* extend right border */
+)
+{
+    int i;
+    unsigned char *src_ptr1, *src_ptr2;
+    unsigned char *dest_ptr1, *dest_ptr2;
+    int linesize;
+
+    /* copy the left and right most columns out */
+    src_ptr1 = s;
+    src_ptr2 = s + w - 1;
+    dest_ptr1 = d - el;
+    dest_ptr2 = d + w;
+
+    for (i = 0; i < h; i++)
+    {
+        memset(dest_ptr1, src_ptr1[0], el);
+        memcpy(dest_ptr1 + el, src_ptr1, w);
+        memset(dest_ptr2, src_ptr2[0], er);
+        src_ptr1  += sp;
+        src_ptr2  += sp;
+        dest_ptr1 += dp;
+        dest_ptr2 += dp;
+    }
+
+    /* Now copy the top and bottom lines into each line of the respective
+     * borders
+     */
+    src_ptr1 = d - el;
+    src_ptr2 = d + dp * (h - 1) - el;
+    dest_ptr1 = d + dp * (-et) - el;
+    dest_ptr2 = d + dp * (h) - el;
+    linesize = el + er + w;
+
+    for (i = 0; i < et; i++)
+    {
+        memcpy(dest_ptr1, src_ptr1, linesize);
+        dest_ptr1 += dp;
+    }
+
+    for (i = 0; i < eb; i++)
+    {
+        memcpy(dest_ptr2, src_ptr2, linesize);
+        dest_ptr2 += dp;
+    }
+}
+
+
+void vp8_copy_and_extend_frame(YV12_BUFFER_CONFIG *src,
+                               YV12_BUFFER_CONFIG *dst)
+{
+    int et = dst->border;
+    int el = dst->border;
+    int eb = dst->border + dst->y_height - src->y_height;
+    int er = dst->border + dst->y_width - src->y_width;
+
+    copy_and_extend_plane(src->y_buffer, src->y_stride,
+                          dst->y_buffer, dst->y_stride,
+                          src->y_height, src->y_width,
+                          et, el, eb, er);
+
+    et = dst->border >> 1;
+    el = dst->border >> 1;
+    eb = (dst->border >> 1) + dst->uv_height - src->uv_height;
+    er = (dst->border >> 1) + dst->uv_width - src->uv_width;
+
+    copy_and_extend_plane(src->u_buffer, src->uv_stride,
+                          dst->u_buffer, dst->uv_stride,
+                          src->uv_height, src->uv_width,
+                          et, el, eb, er);
+
+    copy_and_extend_plane(src->v_buffer, src->uv_stride,
+                          dst->v_buffer, dst->uv_stride,
+                          src->uv_height, src->uv_width,
+                          et, el, eb, er);
+}
+
+
+void vp8_copy_and_extend_frame_with_rect(YV12_BUFFER_CONFIG *src,
+                                         YV12_BUFFER_CONFIG *dst,
+                                         int srcy, int srcx,
+                                         int srch, int srcw)
+{
+    int et = dst->border;
+    int el = dst->border;
+    int eb = dst->border + dst->y_height - src->y_height;
+    int er = dst->border + dst->y_width - src->y_width;
+    int src_y_offset = srcy * src->y_stride + srcx;
+    int dst_y_offset = srcy * dst->y_stride + srcx;
+    int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
+    int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
+
+    /* If the side is not touching the bounder then don't extend. */
+    if (srcy)
+      et = 0;
+    if (srcx)
+      el = 0;
+    if (srcy + srch != src->y_height)
+      eb = 0;
+    if (srcx + srcw != src->y_width)
+      er = 0;
+
+    copy_and_extend_plane(src->y_buffer + src_y_offset,
+                          src->y_stride,
+                          dst->y_buffer + dst_y_offset,
+                          dst->y_stride,
+                          srch, srcw,
+                          et, el, eb, er);
+
+    et = (et + 1) >> 1;
+    el = (el + 1) >> 1;
+    eb = (eb + 1) >> 1;
+    er = (er + 1) >> 1;
+    srch = (srch + 1) >> 1;
+    srcw = (srcw + 1) >> 1;
+
+    copy_and_extend_plane(src->u_buffer + src_uv_offset,
+                          src->uv_stride,
+                          dst->u_buffer + dst_uv_offset,
+                          dst->uv_stride,
+                          srch, srcw,
+                          et, el, eb, er);
+
+    copy_and_extend_plane(src->v_buffer + src_uv_offset,
+                          src->uv_stride,
+                          dst->v_buffer + dst_uv_offset,
+                          dst->uv_stride,
+                          srch, srcw,
+                          et, el, eb, er);
+}
+
+
+/* note the extension is only for the last row, for intra prediction purpose */
+void vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf,
+                       unsigned char *YPtr,
+                       unsigned char *UPtr,
+                       unsigned char *VPtr)
+{
+    int i;
+
+    YPtr += ybf->y_stride * 14;
+    UPtr += ybf->uv_stride * 6;
+    VPtr += ybf->uv_stride * 6;
+
+    for (i = 0; i < 4; i++)
+    {
+        YPtr[i] = YPtr[-1];
+        UPtr[i] = UPtr[-1];
+        VPtr[i] = VPtr[-1];
+    }
+
+    YPtr += ybf->y_stride;
+    UPtr += ybf->uv_stride;
+    VPtr += ybf->uv_stride;
+
+    for (i = 0; i < 4; i++)
+    {
+        YPtr[i] = YPtr[-1];
+        UPtr[i] = UPtr[-1];
+        VPtr[i] = VPtr[-1];
+    }
+}
diff --git a/media/libvpx/vp8/common/extend.h b/media/libvpx/vp8/common/extend.h
new file mode 100644
index 000000000..068f4ac52
--- /dev/null
+++ b/media/libvpx/vp8/common/extend.h
@@ -0,0 +1,33 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_EXTEND_H_
+#define VP8_COMMON_EXTEND_H_
+
+#include "vpx_scale/yv12config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf, unsigned char *YPtr, unsigned char *UPtr, unsigned char *VPtr);
+void vp8_copy_and_extend_frame(YV12_BUFFER_CONFIG *src,
+                               YV12_BUFFER_CONFIG *dst);
+void vp8_copy_and_extend_frame_with_rect(YV12_BUFFER_CONFIG *src,
+                                         YV12_BUFFER_CONFIG *dst,
+                                         int srcy, int srcx,
+                                         int srch, int srcw);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_EXTEND_H_
diff --git a/media/libvpx/vp8/common/filter.c b/media/libvpx/vp8/common/filter.c
new file mode 100644
index 000000000..84c608eff
--- /dev/null
+++ b/media/libvpx/vp8/common/filter.c
@@ -0,0 +1,493 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "filter.h"
+#include "./vp8_rtcd.h"
+
+DECLARE_ALIGNED(16, const short, vp8_bilinear_filters[8][2]) =
+{
+    { 128,   0 },
+    { 112,  16 },
+    {  96,  32 },
+    {  80,  48 },
+    {  64,  64 },
+    {  48,  80 },
+    {  32,  96 },
+    {  16, 112 }
+};
+
+DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters[8][6]) =
+{
+
+    { 0,  0,  128,    0,   0,  0 },         /* note that 1/8 pel positions are just as per alpha -0.5 bicubic */
+    { 0, -6,  123,   12,  -1,  0 },
+    { 2, -11, 108,   36,  -8,  1 },         /* New 1/4 pel 6 tap filter */
+    { 0, -9,   93,   50,  -6,  0 },
+    { 3, -16,  77,   77, -16,  3 },         /* New 1/2 pel 6 tap filter */
+    { 0, -6,   50,   93,  -9,  0 },
+    { 1, -8,   36,  108, -11,  2 },         /* New 1/4 pel 6 tap filter */
+    { 0, -1,   12,  123,  -6,  0 },
+};
+
+static void filter_block2d_first_pass
+(
+    unsigned char *src_ptr,
+    int *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    const short *vp8_filter
+)
+{
+    unsigned int i, j;
+    int  Temp;
+
+    for (i = 0; i < output_height; i++)
+    {
+        for (j = 0; j < output_width; j++)
+        {
+            Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[0]) +
+                   ((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[1]) +
+                   ((int)src_ptr[0]                 * vp8_filter[2]) +
+                   ((int)src_ptr[pixel_step]         * vp8_filter[3]) +
+                   ((int)src_ptr[2*pixel_step]       * vp8_filter[4]) +
+                   ((int)src_ptr[3*pixel_step]       * vp8_filter[5]) +
+                   (VP8_FILTER_WEIGHT >> 1);      /* Rounding */
+
+            /* Normalize back to 0-255 */
+            Temp = Temp >> VP8_FILTER_SHIFT;
+
+            if (Temp < 0)
+                Temp = 0;
+            else if (Temp > 255)
+                Temp = 255;
+
+            output_ptr[j] = Temp;
+            src_ptr++;
+        }
+
+        /* Next row... */
+        src_ptr    += src_pixels_per_line - output_width;
+        output_ptr += output_width;
+    }
+}
+
+static void filter_block2d_second_pass
+(
+    int *src_ptr,
+    unsigned char *output_ptr,
+    int output_pitch,
+    unsigned int src_pixels_per_line,
+    unsigned int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    const short *vp8_filter
+)
+{
+    unsigned int i, j;
+    int  Temp;
+
+    for (i = 0; i < output_height; i++)
+    {
+        for (j = 0; j < output_width; j++)
+        {
+            /* Apply filter */
+            Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[0]) +
+                   ((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[1]) +
+                   ((int)src_ptr[0]                 * vp8_filter[2]) +
+                   ((int)src_ptr[pixel_step]         * vp8_filter[3]) +
+                   ((int)src_ptr[2*pixel_step]       * vp8_filter[4]) +
+                   ((int)src_ptr[3*pixel_step]       * vp8_filter[5]) +
+                   (VP8_FILTER_WEIGHT >> 1);   /* Rounding */
+
+            /* Normalize back to 0-255 */
+            Temp = Temp >> VP8_FILTER_SHIFT;
+
+            if (Temp < 0)
+                Temp = 0;
+            else if (Temp > 255)
+                Temp = 255;
+
+            output_ptr[j] = (unsigned char)Temp;
+            src_ptr++;
+        }
+
+        /* Start next row */
+        src_ptr    += src_pixels_per_line - output_width;
+        output_ptr += output_pitch;
+    }
+}
+
+
+static void filter_block2d
+(
+    unsigned char  *src_ptr,
+    unsigned char  *output_ptr,
+    unsigned int src_pixels_per_line,
+    int output_pitch,
+    const short  *HFilter,
+    const short  *VFilter
+)
+{
+    int FData[9*4]; /* Temp data buffer used in filtering */
+
+    /* First filter 1-D horizontally... */
+    filter_block2d_first_pass(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 1, 9, 4, HFilter);
+
+    /* then filter verticaly... */
+    filter_block2d_second_pass(FData + 8, output_ptr, output_pitch, 4, 4, 4, 4, VFilter);
+}
+
+
+void vp8_sixtap_predict4x4_c
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    filter_block2d(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
+}
+void vp8_sixtap_predict8x8_c
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+    int FData[13*16];   /* Temp data buffer used in filtering */
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    /* First filter 1-D horizontally... */
+    filter_block2d_first_pass(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 1, 13, 8, HFilter);
+
+
+    /* then filter verticaly... */
+    filter_block2d_second_pass(FData + 16, dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter);
+
+}
+
+void vp8_sixtap_predict8x4_c
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+    int FData[13*16];   /* Temp data buffer used in filtering */
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    /* First filter 1-D horizontally... */
+    filter_block2d_first_pass(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 1, 9, 8, HFilter);
+
+
+    /* then filter verticaly... */
+    filter_block2d_second_pass(FData + 16, dst_ptr, dst_pitch, 8, 8, 4, 8, VFilter);
+
+}
+
+void vp8_sixtap_predict16x16_c
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+    int FData[21*24];   /* Temp data buffer used in filtering */
+
+
+    HFilter = vp8_sub_pel_filters[xoffset];   /* 6 tap */
+    VFilter = vp8_sub_pel_filters[yoffset];   /* 6 tap */
+
+    /* First filter 1-D horizontally... */
+    filter_block2d_first_pass(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 1, 21, 16, HFilter);
+
+    /* then filter verticaly... */
+    filter_block2d_second_pass(FData + 32, dst_ptr, dst_pitch, 16, 16, 16, 16, VFilter);
+
+}
+
+
+/****************************************************************************
+ *
+ *  ROUTINE       : filter_block2d_bil_first_pass
+ *
+ *  INPUTS        : UINT8  *src_ptr    : Pointer to source block.
+ *                  UINT32  src_stride : Stride of source block.
+ *                  UINT32  height     : Block height.
+ *                  UINT32  width      : Block width.
+ *                  INT32  *vp8_filter : Array of 2 bi-linear filter taps.
+ *
+ *  OUTPUTS       : INT32  *dst_ptr    : Pointer to filtered block.
+ *
+ *  RETURNS       : void
+ *
+ *  FUNCTION      : Applies a 1-D 2-tap bi-linear filter to the source block
+ *                  in the horizontal direction to produce the filtered output
+ *                  block. Used to implement first-pass of 2-D separable filter.
+ *
+ *  SPECIAL NOTES : Produces INT32 output to retain precision for next pass.
+ *                  Two filter taps should sum to VP8_FILTER_WEIGHT.
+ *
+ ****************************************************************************/
+static void filter_block2d_bil_first_pass
+(
+    unsigned char  *src_ptr,
+    unsigned short *dst_ptr,
+    unsigned int    src_stride,
+    unsigned int    height,
+    unsigned int    width,
+    const short    *vp8_filter
+)
+{
+    unsigned int i, j;
+
+    for (i = 0; i < height; i++)
+    {
+        for (j = 0; j < width; j++)
+        {
+            /* Apply bilinear filter */
+            dst_ptr[j] = (((int)src_ptr[0] * vp8_filter[0]) +
+                          ((int)src_ptr[1] * vp8_filter[1]) +
+                          (VP8_FILTER_WEIGHT / 2)) >> VP8_FILTER_SHIFT;
+            src_ptr++;
+        }
+
+        /* Next row... */
+        src_ptr += src_stride - width;
+        dst_ptr += width;
+    }
+}
+
+/****************************************************************************
+ *
+ *  ROUTINE       : filter_block2d_bil_second_pass
+ *
+ *  INPUTS        : INT32  *src_ptr    : Pointer to source block.
+ *                  UINT32  dst_pitch  : Destination block pitch.
+ *                  UINT32  height     : Block height.
+ *                  UINT32  width      : Block width.
+ *                  INT32  *vp8_filter : Array of 2 bi-linear filter taps.
+ *
+ *  OUTPUTS       : UINT16 *dst_ptr    : Pointer to filtered block.
+ *
+ *  RETURNS       : void
+ *
+ *  FUNCTION      : Applies a 1-D 2-tap bi-linear filter to the source block
+ *                  in the vertical direction to produce the filtered output
+ *                  block. Used to implement second-pass of 2-D separable filter.
+ *
+ *  SPECIAL NOTES : Requires 32-bit input as produced by filter_block2d_bil_first_pass.
+ *                  Two filter taps should sum to VP8_FILTER_WEIGHT.
+ *
+ ****************************************************************************/
+static void filter_block2d_bil_second_pass
+(
+    unsigned short *src_ptr,
+    unsigned char  *dst_ptr,
+    int             dst_pitch,
+    unsigned int    height,
+    unsigned int    width,
+    const short    *vp8_filter
+)
+{
+    unsigned int  i, j;
+    int  Temp;
+
+    for (i = 0; i < height; i++)
+    {
+        for (j = 0; j < width; j++)
+        {
+            /* Apply filter */
+            Temp = ((int)src_ptr[0]     * vp8_filter[0]) +
+                   ((int)src_ptr[width] * vp8_filter[1]) +
+                   (VP8_FILTER_WEIGHT / 2);
+            dst_ptr[j] = (unsigned int)(Temp >> VP8_FILTER_SHIFT);
+            src_ptr++;
+        }
+
+        /* Next row... */
+        dst_ptr += dst_pitch;
+    }
+}
+
+
+/****************************************************************************
+ *
+ *  ROUTINE       : filter_block2d_bil
+ *
+ *  INPUTS        : UINT8  *src_ptr          : Pointer to source block.
+ *                  UINT32  src_pitch        : Stride of source block.
+ *                  UINT32  dst_pitch        : Stride of destination block.
+ *                  INT32  *HFilter          : Array of 2 horizontal filter taps.
+ *                  INT32  *VFilter          : Array of 2 vertical filter taps.
+ *                  INT32  Width             : Block width
+ *                  INT32  Height            : Block height
+ *
+ *  OUTPUTS       : UINT16 *dst_ptr       : Pointer to filtered block.
+ *
+ *  RETURNS       : void
+ *
+ *  FUNCTION      : 2-D filters an input block by applying a 2-tap
+ *                  bi-linear filter horizontally followed by a 2-tap
+ *                  bi-linear filter vertically on the result.
+ *
+ *  SPECIAL NOTES : The largest block size can be handled here is 16x16
+ *
+ ****************************************************************************/
+static void filter_block2d_bil
+(
+    unsigned char *src_ptr,
+    unsigned char *dst_ptr,
+    unsigned int   src_pitch,
+    unsigned int   dst_pitch,
+    const short   *HFilter,
+    const short   *VFilter,
+    int            Width,
+    int            Height
+)
+{
+
+    unsigned short FData[17*16];    /* Temp data buffer used in filtering */
+
+    /* First filter 1-D horizontally... */
+    filter_block2d_bil_first_pass(src_ptr, FData, src_pitch, Height + 1, Width, HFilter);
+
+    /* then 1-D vertically... */
+    filter_block2d_bil_second_pass(FData, dst_ptr, dst_pitch, Height, Width, VFilter);
+}
+
+
+void vp8_bilinear_predict4x4_c
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    const short *HFilter;
+    const short *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+#if 0
+    {
+        int i;
+        unsigned char temp1[16];
+        unsigned char temp2[16];
+
+        bilinear_predict4x4_mmx(src_ptr, src_pixels_per_line, xoffset, yoffset, temp1, 4);
+        filter_block2d_bil(src_ptr, temp2, src_pixels_per_line, 4, HFilter, VFilter, 4, 4);
+
+        for (i = 0; i < 16; i++)
+        {
+            if (temp1[i] != temp2[i])
+            {
+                bilinear_predict4x4_mmx(src_ptr, src_pixels_per_line, xoffset, yoffset, temp1, 4);
+                filter_block2d_bil(src_ptr, temp2, src_pixels_per_line, 4, HFilter, VFilter, 4, 4);
+            }
+        }
+    }
+#endif
+    filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 4, 4);
+
+}
+
+void vp8_bilinear_predict8x8_c
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short *HFilter;
+    const short *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 8);
+
+}
+
+void vp8_bilinear_predict8x4_c
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short *HFilter;
+    const short *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 4);
+
+}
+
+void vp8_bilinear_predict16x16_c
+(
+    unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int  dst_pitch
+)
+{
+    const short *HFilter;
+    const short *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 16, 16);
+}
diff --git a/media/libvpx/vp8/common/filter.h b/media/libvpx/vp8/common/filter.h
new file mode 100644
index 000000000..cfba775fc
--- /dev/null
+++ b/media/libvpx/vp8/common/filter.h
@@ -0,0 +1,32 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_FILTER_H_
+#define VP8_COMMON_FILTER_H_
+
+#include "vpx_ports/mem.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BLOCK_HEIGHT_WIDTH 4
+#define VP8_FILTER_WEIGHT 128
+#define VP8_FILTER_SHIFT  7
+
+extern DECLARE_ALIGNED(16, const short, vp8_bilinear_filters[8][2]);
+extern DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters[8][6]);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_FILTER_H_
diff --git a/media/libvpx/vp8/common/findnearmv.c b/media/libvpx/vp8/common/findnearmv.c
new file mode 100644
index 000000000..e8ee40f56
--- /dev/null
+++ b/media/libvpx/vp8/common/findnearmv.c
@@ -0,0 +1,193 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "findnearmv.h"
+
+const unsigned char vp8_mbsplit_offset[4][16] = {
+    { 0,  8,  0,  0,  0,  0,  0,  0,  0,  0,   0,  0,  0,  0,  0,  0},
+    { 0,  2,  0,  0,  0,  0,  0,  0,  0,  0,   0,  0,  0,  0,  0,  0},
+    { 0,  2,  8, 10,  0,  0,  0,  0,  0,  0,   0,  0,  0,  0,  0,  0},
+    { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15}
+};
+
+/* Predict motion vectors using those from already-decoded nearby blocks.
+   Note that we only consider one 4x4 subblock from each candidate 16x16
+   macroblock.   */
+void vp8_find_near_mvs
+(
+    MACROBLOCKD *xd,
+    const MODE_INFO *here,
+    int_mv *nearest,
+    int_mv *nearby,
+    int_mv *best_mv,
+    int cnt[4],
+    int refframe,
+    int *ref_frame_sign_bias
+)
+{
+    const MODE_INFO *above = here - xd->mode_info_stride;
+    const MODE_INFO *left = here - 1;
+    const MODE_INFO *aboveleft = above - 1;
+    int_mv            near_mvs[4];
+    int_mv           *mv = near_mvs;
+    int             *cntx = cnt;
+    enum {CNT_INTRA, CNT_NEAREST, CNT_NEAR, CNT_SPLITMV};
+
+    /* Zero accumulators */
+    mv[0].as_int = mv[1].as_int = mv[2].as_int = 0;
+    cnt[0] = cnt[1] = cnt[2] = cnt[3] = 0;
+
+    /* Process above */
+    if (above->mbmi.ref_frame != INTRA_FRAME)
+    {
+        if (above->mbmi.mv.as_int)
+        {
+            (++mv)->as_int = above->mbmi.mv.as_int;
+            mv_bias(ref_frame_sign_bias[above->mbmi.ref_frame], refframe, mv, ref_frame_sign_bias);
+            ++cntx;
+        }
+
+        *cntx += 2;
+    }
+
+    /* Process left */
+    if (left->mbmi.ref_frame != INTRA_FRAME)
+    {
+        if (left->mbmi.mv.as_int)
+        {
+            int_mv this_mv;
+
+            this_mv.as_int = left->mbmi.mv.as_int;
+            mv_bias(ref_frame_sign_bias[left->mbmi.ref_frame], refframe, &this_mv, ref_frame_sign_bias);
+
+            if (this_mv.as_int != mv->as_int)
+            {
+                (++mv)->as_int = this_mv.as_int;
+                ++cntx;
+            }
+
+            *cntx += 2;
+        }
+        else
+            cnt[CNT_INTRA] += 2;
+    }
+
+    /* Process above left */
+    if (aboveleft->mbmi.ref_frame != INTRA_FRAME)
+    {
+        if (aboveleft->mbmi.mv.as_int)
+        {
+            int_mv this_mv;
+
+            this_mv.as_int = aboveleft->mbmi.mv.as_int;
+            mv_bias(ref_frame_sign_bias[aboveleft->mbmi.ref_frame], refframe, &this_mv, ref_frame_sign_bias);
+
+            if (this_mv.as_int != mv->as_int)
+            {
+                (++mv)->as_int = this_mv.as_int;
+                ++cntx;
+            }
+
+            *cntx += 1;
+        }
+        else
+            cnt[CNT_INTRA] += 1;
+    }
+
+    /* If we have three distinct MV's ... */
+    if (cnt[CNT_SPLITMV])
+    {
+        /* See if above-left MV can be merged with NEAREST */
+        if (mv->as_int == near_mvs[CNT_NEAREST].as_int)
+            cnt[CNT_NEAREST] += 1;
+    }
+
+    cnt[CNT_SPLITMV] = ((above->mbmi.mode == SPLITMV)
+                        + (left->mbmi.mode == SPLITMV)) * 2
+                       + (aboveleft->mbmi.mode == SPLITMV);
+
+    /* Swap near and nearest if necessary */
+    if (cnt[CNT_NEAR] > cnt[CNT_NEAREST])
+    {
+        int tmp;
+        tmp = cnt[CNT_NEAREST];
+        cnt[CNT_NEAREST] = cnt[CNT_NEAR];
+        cnt[CNT_NEAR] = tmp;
+        tmp = near_mvs[CNT_NEAREST].as_int;
+        near_mvs[CNT_NEAREST].as_int = near_mvs[CNT_NEAR].as_int;
+        near_mvs[CNT_NEAR].as_int = tmp;
+    }
+
+    /* Use near_mvs[0] to store the "best" MV */
+    if (cnt[CNT_NEAREST] >= cnt[CNT_INTRA])
+        near_mvs[CNT_INTRA] = near_mvs[CNT_NEAREST];
+
+    /* Set up return values */
+    best_mv->as_int = near_mvs[0].as_int;
+    nearest->as_int = near_mvs[CNT_NEAREST].as_int;
+    nearby->as_int = near_mvs[CNT_NEAR].as_int;
+}
+
+
+static void invert_and_clamp_mvs(int_mv *inv, int_mv *src, MACROBLOCKD *xd)
+{
+    inv->as_mv.row = src->as_mv.row * -1;
+    inv->as_mv.col = src->as_mv.col * -1;
+    vp8_clamp_mv2(inv, xd);
+    vp8_clamp_mv2(src, xd);
+}
+
+
+int vp8_find_near_mvs_bias
+(
+    MACROBLOCKD *xd,
+    const MODE_INFO *here,
+    int_mv mode_mv_sb[2][MB_MODE_COUNT],
+    int_mv best_mv_sb[2],
+    int cnt[4],
+    int refframe,
+    int *ref_frame_sign_bias
+)
+{
+    int sign_bias = ref_frame_sign_bias[refframe];
+
+    vp8_find_near_mvs(xd,
+                      here,
+                      &mode_mv_sb[sign_bias][NEARESTMV],
+                      &mode_mv_sb[sign_bias][NEARMV],
+                      &best_mv_sb[sign_bias],
+                      cnt,
+                      refframe,
+                      ref_frame_sign_bias);
+
+    invert_and_clamp_mvs(&mode_mv_sb[!sign_bias][NEARESTMV],
+                         &mode_mv_sb[sign_bias][NEARESTMV], xd);
+    invert_and_clamp_mvs(&mode_mv_sb[!sign_bias][NEARMV],
+                         &mode_mv_sb[sign_bias][NEARMV], xd);
+    invert_and_clamp_mvs(&best_mv_sb[!sign_bias],
+                         &best_mv_sb[sign_bias], xd);
+
+    return sign_bias;
+}
+
+
+vp8_prob *vp8_mv_ref_probs(
+    vp8_prob p[VP8_MVREFS-1], const int near_mv_ref_ct[4]
+)
+{
+    p[0] = vp8_mode_contexts [near_mv_ref_ct[0]] [0];
+    p[1] = vp8_mode_contexts [near_mv_ref_ct[1]] [1];
+    p[2] = vp8_mode_contexts [near_mv_ref_ct[2]] [2];
+    p[3] = vp8_mode_contexts [near_mv_ref_ct[3]] [3];
+    /*p[3] = vp8_mode_contexts [near_mv_ref_ct[1] + near_mv_ref_ct[2] + near_mv_ref_ct[3]] [3];*/
+    return p;
+}
+
diff --git a/media/libvpx/vp8/common/findnearmv.h b/media/libvpx/vp8/common/findnearmv.h
new file mode 100644
index 000000000..3c8c0506f
--- /dev/null
+++ b/media/libvpx/vp8/common/findnearmv.h
@@ -0,0 +1,190 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_FINDNEARMV_H_
+#define VP8_COMMON_FINDNEARMV_H_
+
+#include "mv.h"
+#include "blockd.h"
+#include "modecont.h"
+#include "treecoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+static void mv_bias(int refmb_ref_frame_sign_bias, int refframe, int_mv *mvp,
+                    const int *ref_frame_sign_bias)
+{
+    if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe])
+    {
+        mvp->as_mv.row *= -1;
+        mvp->as_mv.col *= -1;
+    }
+}
+
+#define LEFT_TOP_MARGIN (16 << 3)
+#define RIGHT_BOTTOM_MARGIN (16 << 3)
+static void vp8_clamp_mv2(int_mv *mv, const MACROBLOCKD *xd)
+{
+    if (mv->as_mv.col < (xd->mb_to_left_edge - LEFT_TOP_MARGIN))
+        mv->as_mv.col = xd->mb_to_left_edge - LEFT_TOP_MARGIN;
+    else if (mv->as_mv.col > xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN)
+        mv->as_mv.col = xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN;
+
+    if (mv->as_mv.row < (xd->mb_to_top_edge - LEFT_TOP_MARGIN))
+        mv->as_mv.row = xd->mb_to_top_edge - LEFT_TOP_MARGIN;
+    else if (mv->as_mv.row > xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN)
+        mv->as_mv.row = xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN;
+}
+
+static void vp8_clamp_mv(int_mv *mv, int mb_to_left_edge, int mb_to_right_edge,
+                         int mb_to_top_edge, int mb_to_bottom_edge)
+{
+    mv->as_mv.col = (mv->as_mv.col < mb_to_left_edge) ?
+        mb_to_left_edge : mv->as_mv.col;
+    mv->as_mv.col = (mv->as_mv.col > mb_to_right_edge) ?
+        mb_to_right_edge : mv->as_mv.col;
+    mv->as_mv.row = (mv->as_mv.row < mb_to_top_edge) ?
+        mb_to_top_edge : mv->as_mv.row;
+    mv->as_mv.row = (mv->as_mv.row > mb_to_bottom_edge) ?
+        mb_to_bottom_edge : mv->as_mv.row;
+}
+static unsigned int vp8_check_mv_bounds(int_mv *mv, int mb_to_left_edge,
+                                int mb_to_right_edge, int mb_to_top_edge,
+                                int mb_to_bottom_edge)
+{
+    unsigned int need_to_clamp;
+    need_to_clamp = (mv->as_mv.col < mb_to_left_edge);
+    need_to_clamp |= (mv->as_mv.col > mb_to_right_edge);
+    need_to_clamp |= (mv->as_mv.row < mb_to_top_edge);
+    need_to_clamp |= (mv->as_mv.row > mb_to_bottom_edge);
+    return need_to_clamp;
+}
+
+void vp8_find_near_mvs
+(
+    MACROBLOCKD *xd,
+    const MODE_INFO *here,
+    int_mv *nearest, int_mv *nearby, int_mv *best,
+    int near_mv_ref_cts[4],
+    int refframe,
+    int *ref_frame_sign_bias
+);
+
+
+int vp8_find_near_mvs_bias
+(
+    MACROBLOCKD *xd,
+    const MODE_INFO *here,
+    int_mv mode_mv_sb[2][MB_MODE_COUNT],
+    int_mv best_mv_sb[2],
+    int cnt[4],
+    int refframe,
+    int *ref_frame_sign_bias
+);
+
+
+vp8_prob *vp8_mv_ref_probs(
+    vp8_prob p[VP8_MVREFS-1], const int near_mv_ref_ct[4]
+);
+
+extern const unsigned char vp8_mbsplit_offset[4][16];
+
+
+static int left_block_mv(const MODE_INFO *cur_mb, int b)
+{
+    if (!(b & 3))
+    {
+        /* On L edge, get from MB to left of us */
+        --cur_mb;
+
+        if(cur_mb->mbmi.mode != SPLITMV)
+            return cur_mb->mbmi.mv.as_int;
+        b += 4;
+    }
+
+    return (cur_mb->bmi + b - 1)->mv.as_int;
+}
+
+static int above_block_mv(const MODE_INFO *cur_mb, int b, int mi_stride)
+{
+    if (!(b >> 2))
+    {
+        /* On top edge, get from MB above us */
+        cur_mb -= mi_stride;
+
+        if(cur_mb->mbmi.mode != SPLITMV)
+            return cur_mb->mbmi.mv.as_int;
+        b += 16;
+    }
+
+    return (cur_mb->bmi + (b - 4))->mv.as_int;
+}
+static B_PREDICTION_MODE left_block_mode(const MODE_INFO *cur_mb, int b)
+{
+    if (!(b & 3))
+    {
+        /* On L edge, get from MB to left of us */
+        --cur_mb;
+        switch (cur_mb->mbmi.mode)
+        {
+            case B_PRED:
+              return (cur_mb->bmi + b + 3)->as_mode;
+            case DC_PRED:
+                return B_DC_PRED;
+            case V_PRED:
+                return B_VE_PRED;
+            case H_PRED:
+                return B_HE_PRED;
+            case TM_PRED:
+                return B_TM_PRED;
+            default:
+                return B_DC_PRED;
+        }
+    }
+
+    return (cur_mb->bmi + b - 1)->as_mode;
+}
+
+static B_PREDICTION_MODE above_block_mode(const MODE_INFO *cur_mb, int b, int mi_stride)
+{
+    if (!(b >> 2))
+    {
+        /* On top edge, get from MB above us */
+        cur_mb -= mi_stride;
+
+        switch (cur_mb->mbmi.mode)
+        {
+            case B_PRED:
+              return (cur_mb->bmi + b + 12)->as_mode;
+            case DC_PRED:
+                return B_DC_PRED;
+            case V_PRED:
+                return B_VE_PRED;
+            case H_PRED:
+                return B_HE_PRED;
+            case TM_PRED:
+                return B_TM_PRED;
+            default:
+                return B_DC_PRED;
+        }
+    }
+
+    return (cur_mb->bmi + b - 4)->as_mode;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_FINDNEARMV_H_
diff --git a/media/libvpx/vp8/common/generic/systemdependent.c b/media/libvpx/vp8/common/generic/systemdependent.c
new file mode 100644
index 000000000..8ee7e0230
--- /dev/null
+++ b/media/libvpx/vp8/common/generic/systemdependent.c
@@ -0,0 +1,100 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#if ARCH_ARM
+#include "vpx_ports/arm.h"
+#elif ARCH_X86 || ARCH_X86_64
+#include "vpx_ports/x86.h"
+#endif
+#include "vp8/common/onyxc_int.h"
+#include "vp8/common/systemdependent.h"
+
+#if CONFIG_MULTITHREAD
+#if HAVE_UNISTD_H && !defined(__OS2__)
+#include <unistd.h>
+#elif defined(_WIN32)
+#include <windows.h>
+#include <intrin.h>
+typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO);
+#elif defined(__OS2__)
+#define INCL_DOS
+#define INCL_DOSSPINLOCK
+#include <os2.h>
+#endif
+#endif
+
+#if CONFIG_MULTITHREAD
+static int get_cpu_count()
+{
+    int core_count = 16;
+
+#if HAVE_UNISTD_H && !defined(__OS2__)
+#if defined(_SC_NPROCESSORS_ONLN)
+    core_count = sysconf(_SC_NPROCESSORS_ONLN);
+#elif defined(_SC_NPROC_ONLN)
+    core_count = sysconf(_SC_NPROC_ONLN);
+#endif
+#elif defined(_WIN32)
+    {
+        PGNSI pGNSI;
+        SYSTEM_INFO sysinfo;
+
+        /* Call GetNativeSystemInfo if supported or
+         * GetSystemInfo otherwise. */
+
+        pGNSI = (PGNSI) GetProcAddress(
+                GetModuleHandle(TEXT("kernel32.dll")), "GetNativeSystemInfo");
+        if (pGNSI != NULL)
+            pGNSI(&sysinfo);
+        else
+            GetSystemInfo(&sysinfo);
+
+        core_count = sysinfo.dwNumberOfProcessors;
+    }
+#elif defined(__OS2__)
+    {
+        ULONG proc_id;
+        ULONG status;
+
+        core_count = 0;
+        for (proc_id = 1; ; proc_id++)
+        {
+            if (DosGetProcessorStatus(proc_id, &status))
+                break;
+
+            if (status == PROC_ONLINE)
+                core_count++;
+        }
+    }
+#else
+    /* other platforms */
+#endif
+
+    return core_count > 0 ? core_count : 1;
+}
+#endif
+
+void vp8_clear_system_state_c() {};
+
+void vp8_machine_specific_config(VP8_COMMON *ctx)
+{
+#if CONFIG_MULTITHREAD
+    ctx->processor_core_count = get_cpu_count();
+#endif /* CONFIG_MULTITHREAD */
+
+#if ARCH_ARM
+    ctx->cpu_caps = arm_cpu_caps();
+#elif ARCH_X86 || ARCH_X86_64
+    ctx->cpu_caps = x86_simd_caps();
+#endif
+}
diff --git a/media/libvpx/vp8/common/header.h b/media/libvpx/vp8/common/header.h
new file mode 100644
index 000000000..e27bca16b
--- /dev/null
+++ b/media/libvpx/vp8/common/header.h
@@ -0,0 +1,51 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_HEADER_H_
+#define VP8_COMMON_HEADER_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* 24 bits total */
+typedef struct
+{
+    unsigned int type: 1;
+    unsigned int version: 3;
+    unsigned int show_frame: 1;
+
+    /* Allow 2^20 bytes = 8 megabits for first partition */
+
+    unsigned int first_partition_length_in_bytes: 19;
+
+#ifdef PACKET_TESTING
+    unsigned int frame_number;
+    unsigned int update_gold: 1;
+    unsigned int uses_gold: 1;
+    unsigned int update_last: 1;
+    unsigned int uses_last: 1;
+#endif
+
+} VP8_HEADER;
+
+#ifdef PACKET_TESTING
+#define VP8_HEADER_SIZE 8
+#else
+#define VP8_HEADER_SIZE 3
+#endif
+
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_HEADER_H_
diff --git a/media/libvpx/vp8/common/idct_blk.c b/media/libvpx/vp8/common/idct_blk.c
new file mode 100644
index 000000000..8aa7d9bf0
--- /dev/null
+++ b/media/libvpx/vp8/common/idct_blk.c
@@ -0,0 +1,90 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_mem/vpx_mem.h"
+
+void vp8_dequant_idct_add_c(short *input, short *dq,
+                            unsigned char *dest, int stride);
+void vp8_dc_only_idct_add_c(short input_dc, unsigned char * pred,
+                            int pred_stride, unsigned char *dst_ptr,
+                            int dst_stride);
+
+void vp8_dequant_idct_add_y_block_c
+            (short *q, short *dq,
+             unsigned char *dst, int stride, char *eobs)
+{
+    int i, j;
+
+    for (i = 0; i < 4; i++)
+    {
+        for (j = 0; j < 4; j++)
+        {
+            if (*eobs++ > 1)
+                vp8_dequant_idct_add_c (q, dq, dst, stride);
+            else
+            {
+                vp8_dc_only_idct_add_c (q[0]*dq[0], dst, stride, dst, stride);
+                memset(q, 0, 2 * sizeof(q[0]));
+            }
+
+            q   += 16;
+            dst += 4;
+        }
+
+        dst += 4*stride - 16;
+    }
+}
+
+void vp8_dequant_idct_add_uv_block_c
+            (short *q, short *dq,
+             unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
+{
+    int i, j;
+
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 2; j++)
+        {
+            if (*eobs++ > 1)
+                vp8_dequant_idct_add_c (q, dq, dstu, stride);
+            else
+            {
+                vp8_dc_only_idct_add_c (q[0]*dq[0], dstu, stride, dstu, stride);
+                memset(q, 0, 2 * sizeof(q[0]));
+            }
+
+            q    += 16;
+            dstu += 4;
+        }
+
+        dstu += 4*stride - 8;
+    }
+
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 2; j++)
+        {
+            if (*eobs++ > 1)
+                vp8_dequant_idct_add_c (q, dq, dstv, stride);
+            else
+            {
+                vp8_dc_only_idct_add_c (q[0]*dq[0], dstv, stride, dstv, stride);
+                memset(q, 0, 2 * sizeof(q[0]));
+            }
+
+            q    += 16;
+            dstv += 4;
+        }
+
+        dstv += 4*stride - 8;
+    }
+}
diff --git a/media/libvpx/vp8/common/idctllm.c b/media/libvpx/vp8/common/idctllm.c
new file mode 100644
index 000000000..f5403c5aa
--- /dev/null
+++ b/media/libvpx/vp8/common/idctllm.c
@@ -0,0 +1,205 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vp8_rtcd.h"
+
+/****************************************************************************
+ * Notes:
+ *
+ * This implementation makes use of 16 bit fixed point verio of two multiply
+ * constants:
+ *         1.   sqrt(2) * cos (pi/8)
+ *         2.   sqrt(2) * sin (pi/8)
+ * Becuase the first constant is bigger than 1, to maintain the same 16 bit
+ * fixed point precision as the second one, we use a trick of
+ *         x * a = x + x*(a-1)
+ * so
+ *         x * sqrt(2) * cos (pi/8) = x + x * (sqrt(2) *cos(pi/8)-1).
+ **************************************************************************/
+static const int cospi8sqrt2minus1 = 20091;
+static const int sinpi8sqrt2      = 35468;
+
+void vp8_short_idct4x4llm_c(short *input, unsigned char *pred_ptr,
+                            int pred_stride, unsigned char *dst_ptr,
+                            int dst_stride)
+{
+    int i;
+    int r, c;
+    int a1, b1, c1, d1;
+    short output[16];
+    short *ip = input;
+    short *op = output;
+    int temp1, temp2;
+    int shortpitch = 4;
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ip[0] + ip[8];
+        b1 = ip[0] - ip[8];
+
+        temp1 = (ip[4] * sinpi8sqrt2) >> 16;
+        temp2 = ip[12] + ((ip[12] * cospi8sqrt2minus1) >> 16);
+        c1 = temp1 - temp2;
+
+        temp1 = ip[4] + ((ip[4] * cospi8sqrt2minus1) >> 16);
+        temp2 = (ip[12] * sinpi8sqrt2) >> 16;
+        d1 = temp1 + temp2;
+
+        op[shortpitch*0] = a1 + d1;
+        op[shortpitch*3] = a1 - d1;
+
+        op[shortpitch*1] = b1 + c1;
+        op[shortpitch*2] = b1 - c1;
+
+        ip++;
+        op++;
+    }
+
+    ip = output;
+    op = output;
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ip[0] + ip[2];
+        b1 = ip[0] - ip[2];
+
+        temp1 = (ip[1] * sinpi8sqrt2) >> 16;
+        temp2 = ip[3] + ((ip[3] * cospi8sqrt2minus1) >> 16);
+        c1 = temp1 - temp2;
+
+        temp1 = ip[1] + ((ip[1] * cospi8sqrt2minus1) >> 16);
+        temp2 = (ip[3] * sinpi8sqrt2) >> 16;
+        d1 = temp1 + temp2;
+
+
+        op[0] = (a1 + d1 + 4) >> 3;
+        op[3] = (a1 - d1 + 4) >> 3;
+
+        op[1] = (b1 + c1 + 4) >> 3;
+        op[2] = (b1 - c1 + 4) >> 3;
+
+        ip += shortpitch;
+        op += shortpitch;
+    }
+
+    ip = output;
+    for (r = 0; r < 4; r++)
+    {
+        for (c = 0; c < 4; c++)
+        {
+            int a = ip[c] + pred_ptr[c] ;
+
+            if (a < 0)
+                a = 0;
+
+            if (a > 255)
+                a = 255;
+
+            dst_ptr[c] = (unsigned char) a ;
+        }
+        ip += 4;
+        dst_ptr += dst_stride;
+        pred_ptr += pred_stride;
+    }
+}
+
+void vp8_dc_only_idct_add_c(short input_dc, unsigned char *pred_ptr,
+                            int pred_stride, unsigned char *dst_ptr,
+                            int dst_stride)
+{
+    int a1 = ((input_dc + 4) >> 3);
+    int r, c;
+
+    for (r = 0; r < 4; r++)
+    {
+        for (c = 0; c < 4; c++)
+        {
+            int a = a1 + pred_ptr[c] ;
+
+            if (a < 0)
+                a = 0;
+
+            if (a > 255)
+                a = 255;
+
+            dst_ptr[c] = (unsigned char) a ;
+        }
+
+        dst_ptr += dst_stride;
+        pred_ptr += pred_stride;
+    }
+
+}
+
+void vp8_short_inv_walsh4x4_c(short *input, short *mb_dqcoeff)
+{
+    short output[16];
+    int i;
+    int a1, b1, c1, d1;
+    int a2, b2, c2, d2;
+    short *ip = input;
+    short *op = output;
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ip[0] + ip[12];
+        b1 = ip[4] + ip[8];
+        c1 = ip[4] - ip[8];
+        d1 = ip[0] - ip[12];
+
+        op[0] = a1 + b1;
+        op[4] = c1 + d1;
+        op[8] = a1 - b1;
+        op[12] = d1 - c1;
+        ip++;
+        op++;
+    }
+
+    ip = output;
+    op = output;
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ip[0] + ip[3];
+        b1 = ip[1] + ip[2];
+        c1 = ip[1] - ip[2];
+        d1 = ip[0] - ip[3];
+
+        a2 = a1 + b1;
+        b2 = c1 + d1;
+        c2 = a1 - b1;
+        d2 = d1 - c1;
+
+        op[0] = (a2 + 3) >> 3;
+        op[1] = (b2 + 3) >> 3;
+        op[2] = (c2 + 3) >> 3;
+        op[3] = (d2 + 3) >> 3;
+
+        ip += 4;
+        op += 4;
+    }
+
+    for(i = 0; i < 16; i++)
+    {
+        mb_dqcoeff[i * 16] = output[i];
+    }
+}
+
+void vp8_short_inv_walsh4x4_1_c(short *input, short *mb_dqcoeff)
+{
+    int i;
+    int a1;
+
+    a1 = ((input[0] + 3) >> 3);
+    for(i = 0; i < 16; i++)
+    {
+        mb_dqcoeff[i * 16] = a1;
+    }
+}
diff --git a/media/libvpx/vp8/common/invtrans.h b/media/libvpx/vp8/common/invtrans.h
new file mode 100644
index 000000000..affe57e3d
--- /dev/null
+++ b/media/libvpx/vp8/common/invtrans.h
@@ -0,0 +1,70 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_INVTRANS_H_
+#define VP8_COMMON_INVTRANS_H_
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "blockd.h"
+#include "onyxc_int.h"
+
+#if CONFIG_MULTITHREAD
+#include "vpx_mem/vpx_mem.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static void eob_adjust(char *eobs, short *diff)
+{
+    /* eob adjust.... the idct can only skip if both the dc and eob are zero */
+    int js;
+    for(js = 0; js < 16; js++)
+    {
+        if((eobs[js] == 0) && (diff[0] != 0))
+            eobs[js]++;
+        diff+=16;
+    }
+}
+
+static void vp8_inverse_transform_mby(MACROBLOCKD *xd)
+{
+    short *DQC = xd->dequant_y1;
+
+    if (xd->mode_info_context->mbmi.mode != SPLITMV)
+    {
+        /* do 2nd order transform on the dc block */
+        if (xd->eobs[24] > 1)
+        {
+            vp8_short_inv_walsh4x4
+                (&xd->block[24].dqcoeff[0], xd->qcoeff);
+        }
+        else
+        {
+            vp8_short_inv_walsh4x4_1
+                (&xd->block[24].dqcoeff[0], xd->qcoeff);
+        }
+        eob_adjust(xd->eobs, xd->qcoeff);
+
+        DQC = xd->dequant_y1_dc;
+    }
+    vp8_dequant_idct_add_y_block
+                    (xd->qcoeff, DQC,
+                     xd->dst.y_buffer,
+                     xd->dst.y_stride, xd->eobs);
+}
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_INVTRANS_H_
diff --git a/media/libvpx/vp8/common/loopfilter.c b/media/libvpx/vp8/common/loopfilter.c
new file mode 100644
index 000000000..756ad488f
--- /dev/null
+++ b/media/libvpx/vp8/common/loopfilter.c
@@ -0,0 +1,661 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "loopfilter.h"
+#include "onyxc_int.h"
+#include "vpx_mem/vpx_mem.h"
+
+
+static void lf_init_lut(loop_filter_info_n *lfi)
+{
+    int filt_lvl;
+
+    for (filt_lvl = 0; filt_lvl <= MAX_LOOP_FILTER; filt_lvl++)
+    {
+        if (filt_lvl >= 40)
+        {
+            lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 2;
+            lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 3;
+        }
+        else if (filt_lvl >= 20)
+        {
+            lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 1;
+            lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 2;
+        }
+        else if (filt_lvl >= 15)
+        {
+            lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 1;
+            lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 1;
+        }
+        else
+        {
+            lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 0;
+            lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 0;
+        }
+    }
+
+    lfi->mode_lf_lut[DC_PRED] = 1;
+    lfi->mode_lf_lut[V_PRED] = 1;
+    lfi->mode_lf_lut[H_PRED] = 1;
+    lfi->mode_lf_lut[TM_PRED] = 1;
+    lfi->mode_lf_lut[B_PRED]  = 0;
+
+    lfi->mode_lf_lut[ZEROMV]  = 1;
+    lfi->mode_lf_lut[NEARESTMV] = 2;
+    lfi->mode_lf_lut[NEARMV] = 2;
+    lfi->mode_lf_lut[NEWMV] = 2;
+    lfi->mode_lf_lut[SPLITMV] = 3;
+
+}
+
+void vp8_loop_filter_update_sharpness(loop_filter_info_n *lfi,
+                                      int sharpness_lvl)
+{
+    int i;
+
+    /* For each possible value for the loop filter fill out limits */
+    for (i = 0; i <= MAX_LOOP_FILTER; i++)
+    {
+        int filt_lvl = i;
+        int block_inside_limit = 0;
+
+        /* Set loop filter paramaeters that control sharpness. */
+        block_inside_limit = filt_lvl >> (sharpness_lvl > 0);
+        block_inside_limit = block_inside_limit >> (sharpness_lvl > 4);
+
+        if (sharpness_lvl > 0)
+        {
+            if (block_inside_limit > (9 - sharpness_lvl))
+                block_inside_limit = (9 - sharpness_lvl);
+        }
+
+        if (block_inside_limit < 1)
+            block_inside_limit = 1;
+
+        memset(lfi->lim[i], block_inside_limit, SIMD_WIDTH);
+        memset(lfi->blim[i], (2 * filt_lvl + block_inside_limit), SIMD_WIDTH);
+        memset(lfi->mblim[i], (2 * (filt_lvl + 2) + block_inside_limit),
+               SIMD_WIDTH);
+    }
+}
+
+void vp8_loop_filter_init(VP8_COMMON *cm)
+{
+    loop_filter_info_n *lfi = &cm->lf_info;
+    int i;
+
+    /* init limits for given sharpness*/
+    vp8_loop_filter_update_sharpness(lfi, cm->sharpness_level);
+    cm->last_sharpness_level = cm->sharpness_level;
+
+    /* init LUT for lvl  and hev thr picking */
+    lf_init_lut(lfi);
+
+    /* init hev threshold const vectors */
+    for(i = 0; i < 4 ; i++)
+    {
+        memset(lfi->hev_thr[i], i, SIMD_WIDTH);
+    }
+}
+
+void vp8_loop_filter_frame_init(VP8_COMMON *cm,
+                                MACROBLOCKD *mbd,
+                                int default_filt_lvl)
+{
+    int seg,  /* segment number */
+        ref,  /* index in ref_lf_deltas */
+        mode; /* index in mode_lf_deltas */
+
+    loop_filter_info_n *lfi = &cm->lf_info;
+
+    /* update limits if sharpness has changed */
+    if(cm->last_sharpness_level != cm->sharpness_level)
+    {
+        vp8_loop_filter_update_sharpness(lfi, cm->sharpness_level);
+        cm->last_sharpness_level = cm->sharpness_level;
+    }
+
+    for(seg = 0; seg < MAX_MB_SEGMENTS; seg++)
+    {
+        int lvl_seg = default_filt_lvl;
+        int lvl_ref, lvl_mode;
+
+        /* Note the baseline filter values for each segment */
+        if (mbd->segmentation_enabled)
+        {
+            /* Abs value */
+            if (mbd->mb_segement_abs_delta == SEGMENT_ABSDATA)
+            {
+                lvl_seg = mbd->segment_feature_data[MB_LVL_ALT_LF][seg];
+            }
+            else  /* Delta Value */
+            {
+                lvl_seg += mbd->segment_feature_data[MB_LVL_ALT_LF][seg];
+            }
+            lvl_seg = (lvl_seg > 0) ? ((lvl_seg > 63) ? 63: lvl_seg) : 0;
+        }
+
+        if (!mbd->mode_ref_lf_delta_enabled)
+        {
+            /* we could get rid of this if we assume that deltas are set to
+             * zero when not in use; encoder always uses deltas
+             */
+            memset(lfi->lvl[seg][0], lvl_seg, 4 * 4 );
+            continue;
+        }
+
+        /* INTRA_FRAME */
+        ref = INTRA_FRAME;
+
+        /* Apply delta for reference frame */
+        lvl_ref = lvl_seg + mbd->ref_lf_deltas[ref];
+
+        /* Apply delta for Intra modes */
+        mode = 0; /* B_PRED */
+        /* Only the split mode BPRED has a further special case */
+        lvl_mode = lvl_ref + mbd->mode_lf_deltas[mode];
+        /* clamp */
+        lvl_mode = (lvl_mode > 0) ? (lvl_mode > 63 ? 63 : lvl_mode) : 0;
+
+        lfi->lvl[seg][ref][mode] = lvl_mode;
+
+        mode = 1; /* all the rest of Intra modes */
+        /* clamp */
+        lvl_mode = (lvl_ref > 0) ? (lvl_ref > 63 ? 63 : lvl_ref) : 0;
+        lfi->lvl[seg][ref][mode] = lvl_mode;
+
+        /* LAST, GOLDEN, ALT */
+        for(ref = 1; ref < MAX_REF_FRAMES; ref++)
+        {
+            /* Apply delta for reference frame */
+            lvl_ref = lvl_seg + mbd->ref_lf_deltas[ref];
+
+            /* Apply delta for Inter modes */
+            for (mode = 1; mode < 4; mode++)
+            {
+                lvl_mode = lvl_ref + mbd->mode_lf_deltas[mode];
+                /* clamp */
+                lvl_mode = (lvl_mode > 0) ? (lvl_mode > 63 ? 63 : lvl_mode) : 0;
+
+                lfi->lvl[seg][ref][mode] = lvl_mode;
+            }
+        }
+    }
+}
+
+
+void vp8_loop_filter_row_normal(VP8_COMMON *cm, MODE_INFO *mode_info_context,
+                         int mb_row, int post_ystride, int post_uvstride,
+                         unsigned char *y_ptr, unsigned char *u_ptr,
+                         unsigned char *v_ptr)
+{
+    int mb_col;
+    int filter_level;
+    loop_filter_info_n *lfi_n = &cm->lf_info;
+    loop_filter_info lfi;
+    FRAME_TYPE frame_type = cm->frame_type;
+
+    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+    {
+        int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
+                        mode_info_context->mbmi.mode != SPLITMV &&
+                        mode_info_context->mbmi.mb_skip_coeff);
+
+        const int mode_index = lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
+        const int seg = mode_info_context->mbmi.segment_id;
+        const int ref_frame = mode_info_context->mbmi.ref_frame;
+
+        filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+
+        if (filter_level)
+        {
+            const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
+            lfi.mblim = lfi_n->mblim[filter_level];
+            lfi.blim = lfi_n->blim[filter_level];
+            lfi.lim = lfi_n->lim[filter_level];
+            lfi.hev_thr = lfi_n->hev_thr[hev_index];
+
+            if (mb_col > 0)
+                vp8_loop_filter_mbv
+                (y_ptr, u_ptr, v_ptr, post_ystride, post_uvstride, &lfi);
+
+            if (!skip_lf)
+                vp8_loop_filter_bv
+                (y_ptr, u_ptr, v_ptr, post_ystride, post_uvstride, &lfi);
+
+            /* don't apply across umv border */
+            if (mb_row > 0)
+                vp8_loop_filter_mbh
+                (y_ptr, u_ptr, v_ptr, post_ystride, post_uvstride, &lfi);
+
+            if (!skip_lf)
+                vp8_loop_filter_bh
+                (y_ptr, u_ptr, v_ptr, post_ystride, post_uvstride, &lfi);
+        }
+
+        y_ptr += 16;
+        u_ptr += 8;
+        v_ptr += 8;
+
+        mode_info_context++;     /* step to next MB */
+    }
+
+}
+
+void vp8_loop_filter_row_simple(VP8_COMMON *cm, MODE_INFO *mode_info_context,
+                         int mb_row, int post_ystride, int post_uvstride,
+                         unsigned char *y_ptr, unsigned char *u_ptr,
+                         unsigned char *v_ptr)
+{
+    int mb_col;
+    int filter_level;
+    loop_filter_info_n *lfi_n = &cm->lf_info;
+    (void)post_uvstride;
+
+    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+    {
+        int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
+                        mode_info_context->mbmi.mode != SPLITMV &&
+                        mode_info_context->mbmi.mb_skip_coeff);
+
+        const int mode_index = lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
+        const int seg = mode_info_context->mbmi.segment_id;
+        const int ref_frame = mode_info_context->mbmi.ref_frame;
+
+        filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+
+        if (filter_level)
+        {
+            if (mb_col > 0)
+                vp8_loop_filter_simple_mbv
+                (y_ptr, post_ystride, lfi_n->mblim[filter_level]);
+
+            if (!skip_lf)
+                vp8_loop_filter_simple_bv
+                (y_ptr, post_ystride, lfi_n->blim[filter_level]);
+
+            /* don't apply across umv border */
+            if (mb_row > 0)
+                vp8_loop_filter_simple_mbh
+                (y_ptr, post_ystride, lfi_n->mblim[filter_level]);
+
+            if (!skip_lf)
+                vp8_loop_filter_simple_bh
+                (y_ptr, post_ystride, lfi_n->blim[filter_level]);
+        }
+
+        y_ptr += 16;
+        u_ptr += 8;
+        v_ptr += 8;
+
+        mode_info_context++;     /* step to next MB */
+    }
+
+}
+void vp8_loop_filter_frame(VP8_COMMON *cm,
+                           MACROBLOCKD *mbd,
+                           int frame_type)
+{
+    YV12_BUFFER_CONFIG *post = cm->frame_to_show;
+    loop_filter_info_n *lfi_n = &cm->lf_info;
+    loop_filter_info lfi;
+
+    int mb_row;
+    int mb_col;
+    int mb_rows = cm->mb_rows;
+    int mb_cols = cm->mb_cols;
+
+    int filter_level;
+
+    unsigned char *y_ptr, *u_ptr, *v_ptr;
+
+    /* Point at base of Mb MODE_INFO list */
+    const MODE_INFO *mode_info_context = cm->mi;
+    int post_y_stride = post->y_stride;
+    int post_uv_stride = post->uv_stride;
+
+    /* Initialize the loop filter for this frame. */
+    vp8_loop_filter_frame_init(cm, mbd, cm->filter_level);
+
+    /* Set up the buffer pointers */
+    y_ptr = post->y_buffer;
+    u_ptr = post->u_buffer;
+    v_ptr = post->v_buffer;
+
+    /* vp8_filter each macro block */
+    if (cm->filter_type == NORMAL_LOOPFILTER)
+    {
+        for (mb_row = 0; mb_row < mb_rows; mb_row++)
+        {
+            for (mb_col = 0; mb_col < mb_cols; mb_col++)
+            {
+                int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
+                                mode_info_context->mbmi.mode != SPLITMV &&
+                                mode_info_context->mbmi.mb_skip_coeff);
+
+                const int mode_index = lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
+                const int seg = mode_info_context->mbmi.segment_id;
+                const int ref_frame = mode_info_context->mbmi.ref_frame;
+
+                filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+
+                if (filter_level)
+                {
+                    const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
+                    lfi.mblim = lfi_n->mblim[filter_level];
+                    lfi.blim = lfi_n->blim[filter_level];
+                    lfi.lim = lfi_n->lim[filter_level];
+                    lfi.hev_thr = lfi_n->hev_thr[hev_index];
+
+                    if (mb_col > 0)
+                        vp8_loop_filter_mbv
+                        (y_ptr, u_ptr, v_ptr, post_y_stride, post_uv_stride, &lfi);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_bv
+                        (y_ptr, u_ptr, v_ptr, post_y_stride, post_uv_stride, &lfi);
+
+                    /* don't apply across umv border */
+                    if (mb_row > 0)
+                        vp8_loop_filter_mbh
+                        (y_ptr, u_ptr, v_ptr, post_y_stride, post_uv_stride, &lfi);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_bh
+                        (y_ptr, u_ptr, v_ptr, post_y_stride, post_uv_stride, &lfi);
+                }
+
+                y_ptr += 16;
+                u_ptr += 8;
+                v_ptr += 8;
+
+                mode_info_context++;     /* step to next MB */
+            }
+            y_ptr += post_y_stride  * 16 - post->y_width;
+            u_ptr += post_uv_stride *  8 - post->uv_width;
+            v_ptr += post_uv_stride *  8 - post->uv_width;
+
+            mode_info_context++;         /* Skip border mb */
+
+        }
+    }
+    else /* SIMPLE_LOOPFILTER */
+    {
+        for (mb_row = 0; mb_row < mb_rows; mb_row++)
+        {
+            for (mb_col = 0; mb_col < mb_cols; mb_col++)
+            {
+                int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
+                                mode_info_context->mbmi.mode != SPLITMV &&
+                                mode_info_context->mbmi.mb_skip_coeff);
+
+                const int mode_index = lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
+                const int seg = mode_info_context->mbmi.segment_id;
+                const int ref_frame = mode_info_context->mbmi.ref_frame;
+
+                filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+                if (filter_level)
+                {
+                    const unsigned char * mblim = lfi_n->mblim[filter_level];
+                    const unsigned char * blim = lfi_n->blim[filter_level];
+
+                    if (mb_col > 0)
+                        vp8_loop_filter_simple_mbv
+                        (y_ptr, post_y_stride, mblim);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_simple_bv
+                        (y_ptr, post_y_stride, blim);
+
+                    /* don't apply across umv border */
+                    if (mb_row > 0)
+                        vp8_loop_filter_simple_mbh
+                        (y_ptr, post_y_stride, mblim);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_simple_bh
+                        (y_ptr, post_y_stride, blim);
+                }
+
+                y_ptr += 16;
+                u_ptr += 8;
+                v_ptr += 8;
+
+                mode_info_context++;     /* step to next MB */
+            }
+            y_ptr += post_y_stride  * 16 - post->y_width;
+            u_ptr += post_uv_stride *  8 - post->uv_width;
+            v_ptr += post_uv_stride *  8 - post->uv_width;
+
+            mode_info_context++;         /* Skip border mb */
+
+        }
+    }
+}
+
+void vp8_loop_filter_frame_yonly
+(
+    VP8_COMMON *cm,
+    MACROBLOCKD *mbd,
+    int default_filt_lvl
+)
+{
+    YV12_BUFFER_CONFIG *post = cm->frame_to_show;
+
+    unsigned char *y_ptr;
+    int mb_row;
+    int mb_col;
+
+    loop_filter_info_n *lfi_n = &cm->lf_info;
+    loop_filter_info lfi;
+
+    int filter_level;
+    FRAME_TYPE frame_type = cm->frame_type;
+
+    /* Point at base of Mb MODE_INFO list */
+    const MODE_INFO *mode_info_context = cm->mi;
+
+#if 0
+    if(default_filt_lvl == 0) /* no filter applied */
+        return;
+#endif
+
+    /* Initialize the loop filter for this frame. */
+    vp8_loop_filter_frame_init( cm, mbd, default_filt_lvl);
+
+    /* Set up the buffer pointers */
+    y_ptr = post->y_buffer;
+
+    /* vp8_filter each macro block */
+    for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+        {
+            int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
+                            mode_info_context->mbmi.mode != SPLITMV &&
+                            mode_info_context->mbmi.mb_skip_coeff);
+
+            const int mode_index = lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
+            const int seg = mode_info_context->mbmi.segment_id;
+            const int ref_frame = mode_info_context->mbmi.ref_frame;
+
+            filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+
+            if (filter_level)
+            {
+                if (cm->filter_type == NORMAL_LOOPFILTER)
+                {
+                    const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
+                    lfi.mblim = lfi_n->mblim[filter_level];
+                    lfi.blim = lfi_n->blim[filter_level];
+                    lfi.lim = lfi_n->lim[filter_level];
+                    lfi.hev_thr = lfi_n->hev_thr[hev_index];
+
+                    if (mb_col > 0)
+                        vp8_loop_filter_mbv
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_bv
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+
+                    /* don't apply across umv border */
+                    if (mb_row > 0)
+                        vp8_loop_filter_mbh
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_bh
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+                }
+                else
+                {
+                    if (mb_col > 0)
+                        vp8_loop_filter_simple_mbv
+                        (y_ptr, post->y_stride, lfi_n->mblim[filter_level]);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_simple_bv
+                        (y_ptr, post->y_stride, lfi_n->blim[filter_level]);
+
+                    /* don't apply across umv border */
+                    if (mb_row > 0)
+                        vp8_loop_filter_simple_mbh
+                        (y_ptr, post->y_stride, lfi_n->mblim[filter_level]);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_simple_bh
+                        (y_ptr, post->y_stride, lfi_n->blim[filter_level]);
+                }
+            }
+
+            y_ptr += 16;
+            mode_info_context ++;        /* step to next MB */
+
+        }
+
+        y_ptr += post->y_stride  * 16 - post->y_width;
+        mode_info_context ++;            /* Skip border mb */
+    }
+
+}
+
+void vp8_loop_filter_partial_frame
+(
+    VP8_COMMON *cm,
+    MACROBLOCKD *mbd,
+    int default_filt_lvl
+)
+{
+    YV12_BUFFER_CONFIG *post = cm->frame_to_show;
+
+    unsigned char *y_ptr;
+    int mb_row;
+    int mb_col;
+    int mb_cols = post->y_width >> 4;
+    int mb_rows = post->y_height >> 4;
+
+    int linestocopy;
+
+    loop_filter_info_n *lfi_n = &cm->lf_info;
+    loop_filter_info lfi;
+
+    int filter_level;
+    FRAME_TYPE frame_type = cm->frame_type;
+
+    const MODE_INFO *mode_info_context;
+
+#if 0
+    if(default_filt_lvl == 0) /* no filter applied */
+        return;
+#endif
+
+    /* Initialize the loop filter for this frame. */
+    vp8_loop_filter_frame_init( cm, mbd, default_filt_lvl);
+
+    /* number of MB rows to use in partial filtering */
+    linestocopy = mb_rows / PARTIAL_FRAME_FRACTION;
+    linestocopy = linestocopy ? linestocopy << 4 : 16;     /* 16 lines per MB */
+
+    /* Set up the buffer pointers; partial image starts at ~middle of frame */
+    y_ptr = post->y_buffer + ((post->y_height >> 5) * 16) * post->y_stride;
+    mode_info_context = cm->mi + (post->y_height >> 5) * (mb_cols + 1);
+
+    /* vp8_filter each macro block */
+    for (mb_row = 0; mb_row<(linestocopy >> 4); mb_row++)
+    {
+        for (mb_col = 0; mb_col < mb_cols; mb_col++)
+        {
+            int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
+                           mode_info_context->mbmi.mode != SPLITMV &&
+                           mode_info_context->mbmi.mb_skip_coeff);
+
+            const int mode_index =
+                lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
+            const int seg = mode_info_context->mbmi.segment_id;
+            const int ref_frame = mode_info_context->mbmi.ref_frame;
+
+            filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+
+            if (filter_level)
+            {
+                if (cm->filter_type == NORMAL_LOOPFILTER)
+                {
+                    const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
+                    lfi.mblim = lfi_n->mblim[filter_level];
+                    lfi.blim = lfi_n->blim[filter_level];
+                    lfi.lim = lfi_n->lim[filter_level];
+                    lfi.hev_thr = lfi_n->hev_thr[hev_index];
+
+                    if (mb_col > 0)
+                        vp8_loop_filter_mbv
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_bv
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+
+                    vp8_loop_filter_mbh
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_bh
+                        (y_ptr, 0, 0, post->y_stride, 0, &lfi);
+                }
+                else
+                {
+                    if (mb_col > 0)
+                        vp8_loop_filter_simple_mbv
+                        (y_ptr, post->y_stride, lfi_n->mblim[filter_level]);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_simple_bv
+                        (y_ptr, post->y_stride, lfi_n->blim[filter_level]);
+
+                    vp8_loop_filter_simple_mbh
+                        (y_ptr, post->y_stride, lfi_n->mblim[filter_level]);
+
+                    if (!skip_lf)
+                        vp8_loop_filter_simple_bh
+                        (y_ptr, post->y_stride, lfi_n->blim[filter_level]);
+                }
+            }
+
+            y_ptr += 16;
+            mode_info_context += 1;      /* step to next MB */
+        }
+
+        y_ptr += post->y_stride  * 16 - post->y_width;
+        mode_info_context += 1;          /* Skip border mb */
+    }
+}
diff --git a/media/libvpx/vp8/common/loopfilter.h b/media/libvpx/vp8/common/loopfilter.h
new file mode 100644
index 000000000..20a6bd375
--- /dev/null
+++ b/media/libvpx/vp8/common/loopfilter.h
@@ -0,0 +1,113 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_LOOPFILTER_H_
+#define VP8_COMMON_LOOPFILTER_H_
+
+#include "vpx_ports/mem.h"
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MAX_LOOP_FILTER             63
+/* fraction of total macroblock rows to be used in fast filter level picking */
+/* has to be > 2 */
+#define PARTIAL_FRAME_FRACTION      8
+
+typedef enum
+{
+    NORMAL_LOOPFILTER = 0,
+    SIMPLE_LOOPFILTER = 1
+} LOOPFILTERTYPE;
+
+#if ARCH_ARM
+#define SIMD_WIDTH 1
+#else
+#define SIMD_WIDTH 16
+#endif
+
+/* Need to align this structure so when it is declared and
+ * passed it can be loaded into vector registers.
+ */
+typedef struct
+{
+    DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, mblim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
+    DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, blim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
+    DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, lim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
+    DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, hev_thr[4][SIMD_WIDTH]);
+    unsigned char lvl[4][4][4];
+    unsigned char hev_thr_lut[2][MAX_LOOP_FILTER + 1];
+    unsigned char mode_lf_lut[10];
+} loop_filter_info_n;
+
+typedef struct loop_filter_info
+{
+    const unsigned char * mblim;
+    const unsigned char * blim;
+    const unsigned char * lim;
+    const unsigned char * hev_thr;
+} loop_filter_info;
+
+
+typedef void loop_filter_uvfunction
+(
+    unsigned char *u,   /* source pointer */
+    int p,              /* pitch */
+    const unsigned char *blimit,
+    const unsigned char *limit,
+    const unsigned char *thresh,
+    unsigned char *v
+);
+
+/* assorted loopfilter functions which get used elsewhere */
+struct VP8Common;
+struct macroblockd;
+struct modeinfo;
+
+void vp8_loop_filter_init(struct VP8Common *cm);
+
+void vp8_loop_filter_frame_init(struct VP8Common *cm,
+                                struct macroblockd *mbd,
+                                int default_filt_lvl);
+
+void vp8_loop_filter_frame(struct VP8Common *cm, struct macroblockd *mbd,
+                           int frame_type);
+
+void vp8_loop_filter_partial_frame(struct VP8Common *cm,
+                                   struct macroblockd *mbd,
+                                   int default_filt_lvl);
+
+void vp8_loop_filter_frame_yonly(struct VP8Common *cm,
+                                 struct macroblockd *mbd,
+                                 int default_filt_lvl);
+
+void vp8_loop_filter_update_sharpness(loop_filter_info_n *lfi,
+                                      int sharpness_lvl);
+
+void vp8_loop_filter_row_normal(struct VP8Common *cm,
+                                struct modeinfo *mode_info_context,
+                                int mb_row, int post_ystride, int post_uvstride,
+                                unsigned char *y_ptr, unsigned char *u_ptr,
+                                unsigned char *v_ptr);
+
+void vp8_loop_filter_row_simple(struct VP8Common *cm,
+                                struct modeinfo *mode_info_context,
+                                int mb_row, int post_ystride, int post_uvstride,
+                                unsigned char *y_ptr, unsigned char *u_ptr,
+                                unsigned char *v_ptr);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_LOOPFILTER_H_
diff --git a/media/libvpx/vp8/common/loopfilter_filters.c b/media/libvpx/vp8/common/loopfilter_filters.c
new file mode 100644
index 000000000..1d51696ff
--- /dev/null
+++ b/media/libvpx/vp8/common/loopfilter_filters.c
@@ -0,0 +1,430 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <stdlib.h>
+#include "loopfilter.h"
+#include "onyxc_int.h"
+
+typedef unsigned char uc;
+
+static signed char vp8_signed_char_clamp(int t)
+{
+    t = (t < -128 ? -128 : t);
+    t = (t > 127 ? 127 : t);
+    return (signed char) t;
+}
+
+
+/* should we apply any filter at all ( 11111111 yes, 00000000 no) */
+static signed char vp8_filter_mask(uc limit, uc blimit,
+                            uc p3, uc p2, uc p1, uc p0,
+                            uc q0, uc q1, uc q2, uc q3)
+{
+    signed char mask = 0;
+    mask |= (abs(p3 - p2) > limit);
+    mask |= (abs(p2 - p1) > limit);
+    mask |= (abs(p1 - p0) > limit);
+    mask |= (abs(q1 - q0) > limit);
+    mask |= (abs(q2 - q1) > limit);
+    mask |= (abs(q3 - q2) > limit);
+    mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2  > blimit);
+    return mask - 1;
+}
+
+/* is there high variance internal edge ( 11111111 yes, 00000000 no) */
+static signed char vp8_hevmask(uc thresh, uc p1, uc p0, uc q0, uc q1)
+{
+    signed char hev = 0;
+    hev  |= (abs(p1 - p0) > thresh) * -1;
+    hev  |= (abs(q1 - q0) > thresh) * -1;
+    return hev;
+}
+
+static void vp8_filter(signed char mask, uc hev, uc *op1,
+        uc *op0, uc *oq0, uc *oq1)
+
+{
+    signed char ps0, qs0;
+    signed char ps1, qs1;
+    signed char filter_value, Filter1, Filter2;
+    signed char u;
+
+    ps1 = (signed char) * op1 ^ 0x80;
+    ps0 = (signed char) * op0 ^ 0x80;
+    qs0 = (signed char) * oq0 ^ 0x80;
+    qs1 = (signed char) * oq1 ^ 0x80;
+
+    /* add outer taps if we have high edge variance */
+    filter_value = vp8_signed_char_clamp(ps1 - qs1);
+    filter_value &= hev;
+
+    /* inner taps */
+    filter_value = vp8_signed_char_clamp(filter_value + 3 * (qs0 - ps0));
+    filter_value &= mask;
+
+    /* save bottom 3 bits so that we round one side +4 and the other +3
+     * if it equals 4 we'll set to adjust by -1 to account for the fact
+     * we'd round 3 the other way
+     */
+    Filter1 = vp8_signed_char_clamp(filter_value + 4);
+    Filter2 = vp8_signed_char_clamp(filter_value + 3);
+    Filter1 >>= 3;
+    Filter2 >>= 3;
+    u = vp8_signed_char_clamp(qs0 - Filter1);
+    *oq0 = u ^ 0x80;
+    u = vp8_signed_char_clamp(ps0 + Filter2);
+    *op0 = u ^ 0x80;
+    filter_value = Filter1;
+
+    /* outer tap adjustments */
+    filter_value += 1;
+    filter_value >>= 1;
+    filter_value &= ~hev;
+
+    u = vp8_signed_char_clamp(qs1 - filter_value);
+    *oq1 = u ^ 0x80;
+    u = vp8_signed_char_clamp(ps1 + filter_value);
+    *op1 = u ^ 0x80;
+
+}
+void vp8_loop_filter_horizontal_edge_c
+(
+    unsigned char *s,
+    int p, /* pitch */
+    const unsigned char *blimit,
+    const unsigned char *limit,
+    const unsigned char *thresh,
+    int count
+)
+{
+    int  hev = 0; /* high edge variance */
+    signed char mask = 0;
+    int i = 0;
+
+    /* loop filter designed to work using chars so that we can make maximum use
+     * of 8 bit simd instructions.
+     */
+    do
+    {
+        mask = vp8_filter_mask(limit[0], blimit[0],
+                               s[-4*p], s[-3*p], s[-2*p], s[-1*p],
+                               s[0*p], s[1*p], s[2*p], s[3*p]);
+
+        hev = vp8_hevmask(thresh[0], s[-2*p], s[-1*p], s[0*p], s[1*p]);
+
+        vp8_filter(mask, hev, s - 2 * p, s - 1 * p, s, s + 1 * p);
+
+        ++s;
+    }
+    while (++i < count * 8);
+}
+
+void vp8_loop_filter_vertical_edge_c
+(
+    unsigned char *s,
+    int p,
+    const unsigned char *blimit,
+    const unsigned char *limit,
+    const unsigned char *thresh,
+    int count
+)
+{
+    int  hev = 0; /* high edge variance */
+    signed char mask = 0;
+    int i = 0;
+
+    /* loop filter designed to work using chars so that we can make maximum use
+     * of 8 bit simd instructions.
+     */
+    do
+    {
+        mask = vp8_filter_mask(limit[0], blimit[0],
+                               s[-4], s[-3], s[-2], s[-1], s[0], s[1], s[2], s[3]);
+
+        hev = vp8_hevmask(thresh[0], s[-2], s[-1], s[0], s[1]);
+
+        vp8_filter(mask, hev, s - 2, s - 1, s, s + 1);
+
+        s += p;
+    }
+    while (++i < count * 8);
+}
+
+static void vp8_mbfilter(signed char mask, uc hev,
+                           uc *op2, uc *op1, uc *op0, uc *oq0, uc *oq1, uc *oq2)
+{
+    signed char s, u;
+    signed char filter_value, Filter1, Filter2;
+    signed char ps2 = (signed char) * op2 ^ 0x80;
+    signed char ps1 = (signed char) * op1 ^ 0x80;
+    signed char ps0 = (signed char) * op0 ^ 0x80;
+    signed char qs0 = (signed char) * oq0 ^ 0x80;
+    signed char qs1 = (signed char) * oq1 ^ 0x80;
+    signed char qs2 = (signed char) * oq2 ^ 0x80;
+
+    /* add outer taps if we have high edge variance */
+    filter_value = vp8_signed_char_clamp(ps1 - qs1);
+    filter_value = vp8_signed_char_clamp(filter_value + 3 * (qs0 - ps0));
+    filter_value &= mask;
+
+    Filter2 = filter_value;
+    Filter2 &= hev;
+
+    /* save bottom 3 bits so that we round one side +4 and the other +3 */
+    Filter1 = vp8_signed_char_clamp(Filter2 + 4);
+    Filter2 = vp8_signed_char_clamp(Filter2 + 3);
+    Filter1 >>= 3;
+    Filter2 >>= 3;
+    qs0 = vp8_signed_char_clamp(qs0 - Filter1);
+    ps0 = vp8_signed_char_clamp(ps0 + Filter2);
+
+
+    /* only apply wider filter if not high edge variance */
+    filter_value &= ~hev;
+    Filter2 = filter_value;
+
+    /* roughly 3/7th difference across boundary */
+    u = vp8_signed_char_clamp((63 + Filter2 * 27) >> 7);
+    s = vp8_signed_char_clamp(qs0 - u);
+    *oq0 = s ^ 0x80;
+    s = vp8_signed_char_clamp(ps0 + u);
+    *op0 = s ^ 0x80;
+
+    /* roughly 2/7th difference across boundary */
+    u = vp8_signed_char_clamp((63 + Filter2 * 18) >> 7);
+    s = vp8_signed_char_clamp(qs1 - u);
+    *oq1 = s ^ 0x80;
+    s = vp8_signed_char_clamp(ps1 + u);
+    *op1 = s ^ 0x80;
+
+    /* roughly 1/7th difference across boundary */
+    u = vp8_signed_char_clamp((63 + Filter2 * 9) >> 7);
+    s = vp8_signed_char_clamp(qs2 - u);
+    *oq2 = s ^ 0x80;
+    s = vp8_signed_char_clamp(ps2 + u);
+    *op2 = s ^ 0x80;
+}
+
+void vp8_mbloop_filter_horizontal_edge_c
+(
+    unsigned char *s,
+    int p,
+    const unsigned char *blimit,
+    const unsigned char *limit,
+    const unsigned char *thresh,
+    int count
+)
+{
+    signed char hev = 0; /* high edge variance */
+    signed char mask = 0;
+    int i = 0;
+
+    /* loop filter designed to work using chars so that we can make maximum use
+     * of 8 bit simd instructions.
+     */
+    do
+    {
+
+        mask = vp8_filter_mask(limit[0], blimit[0],
+                               s[-4*p], s[-3*p], s[-2*p], s[-1*p],
+                               s[0*p], s[1*p], s[2*p], s[3*p]);
+
+        hev = vp8_hevmask(thresh[0], s[-2*p], s[-1*p], s[0*p], s[1*p]);
+
+        vp8_mbfilter(mask, hev, s - 3 * p, s - 2 * p, s - 1 * p, s, s + 1 * p, s + 2 * p);
+
+        ++s;
+    }
+    while (++i < count * 8);
+
+}
+
+
+void vp8_mbloop_filter_vertical_edge_c
+(
+    unsigned char *s,
+    int p,
+    const unsigned char *blimit,
+    const unsigned char *limit,
+    const unsigned char *thresh,
+    int count
+)
+{
+    signed char hev = 0; /* high edge variance */
+    signed char mask = 0;
+    int i = 0;
+
+    do
+    {
+
+        mask = vp8_filter_mask(limit[0], blimit[0],
+                               s[-4], s[-3], s[-2], s[-1], s[0], s[1], s[2], s[3]);
+
+        hev = vp8_hevmask(thresh[0], s[-2], s[-1], s[0], s[1]);
+
+        vp8_mbfilter(mask, hev, s - 3, s - 2, s - 1, s, s + 1, s + 2);
+
+        s += p;
+    }
+    while (++i < count * 8);
+
+}
+
+/* should we apply any filter at all ( 11111111 yes, 00000000 no) */
+static signed char vp8_simple_filter_mask(uc blimit, uc p1, uc p0, uc q0, uc q1)
+{
+/* Why does this cause problems for win32?
+ * error C2143: syntax error : missing ';' before 'type'
+ *  (void) limit;
+ */
+    signed char mask = (abs(p0 - q0) * 2 + abs(p1 - q1) / 2  <= blimit) * -1;
+    return mask;
+}
+
+static void vp8_simple_filter(signed char mask, uc *op1, uc *op0, uc *oq0, uc *oq1)
+{
+    signed char filter_value, Filter1, Filter2;
+    signed char p1 = (signed char) * op1 ^ 0x80;
+    signed char p0 = (signed char) * op0 ^ 0x80;
+    signed char q0 = (signed char) * oq0 ^ 0x80;
+    signed char q1 = (signed char) * oq1 ^ 0x80;
+    signed char u;
+
+    filter_value = vp8_signed_char_clamp(p1 - q1);
+    filter_value = vp8_signed_char_clamp(filter_value + 3 * (q0 - p0));
+    filter_value &= mask;
+
+    /* save bottom 3 bits so that we round one side +4 and the other +3 */
+    Filter1 = vp8_signed_char_clamp(filter_value + 4);
+    Filter1 >>= 3;
+    u = vp8_signed_char_clamp(q0 - Filter1);
+    *oq0  = u ^ 0x80;
+
+    Filter2 = vp8_signed_char_clamp(filter_value + 3);
+    Filter2 >>= 3;
+    u = vp8_signed_char_clamp(p0 + Filter2);
+    *op0 = u ^ 0x80;
+}
+
+void vp8_loop_filter_simple_horizontal_edge_c
+(
+    unsigned char *s,
+    int p,
+    const unsigned char *blimit
+)
+{
+    signed char mask = 0;
+    int i = 0;
+
+    do
+    {
+        mask = vp8_simple_filter_mask(blimit[0], s[-2*p], s[-1*p], s[0*p], s[1*p]);
+        vp8_simple_filter(mask, s - 2 * p, s - 1 * p, s, s + 1 * p);
+        ++s;
+    }
+    while (++i < 16);
+}
+
+void vp8_loop_filter_simple_vertical_edge_c
+(
+    unsigned char *s,
+    int p,
+    const unsigned char *blimit
+)
+{
+    signed char mask = 0;
+    int i = 0;
+
+    do
+    {
+        mask = vp8_simple_filter_mask(blimit[0], s[-2], s[-1], s[0], s[1]);
+        vp8_simple_filter(mask, s - 2, s - 1, s, s + 1);
+        s += p;
+    }
+    while (++i < 16);
+
+}
+
+/* Horizontal MB filtering */
+void vp8_loop_filter_mbh_c(unsigned char *y_ptr, unsigned char *u_ptr,
+                           unsigned char *v_ptr, int y_stride, int uv_stride,
+                           loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_horizontal_edge_c(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_mbloop_filter_horizontal_edge_c(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_mbloop_filter_horizontal_edge_c(v_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+}
+
+/* Vertical MB Filtering */
+void vp8_loop_filter_mbv_c(unsigned char *y_ptr, unsigned char *u_ptr,
+                           unsigned char *v_ptr, int y_stride, int uv_stride,
+                           loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_vertical_edge_c(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_mbloop_filter_vertical_edge_c(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_mbloop_filter_vertical_edge_c(v_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+}
+
+/* Horizontal B Filtering */
+void vp8_loop_filter_bh_c(unsigned char *y_ptr, unsigned char *u_ptr,
+                          unsigned char *v_ptr, int y_stride, int uv_stride,
+                          loop_filter_info *lfi)
+{
+    vp8_loop_filter_horizontal_edge_c(y_ptr + 4 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_horizontal_edge_c(y_ptr + 8 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_horizontal_edge_c(y_ptr + 12 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_loop_filter_horizontal_edge_c(u_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_loop_filter_horizontal_edge_c(v_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+}
+
+void vp8_loop_filter_bhs_c(unsigned char *y_ptr, int y_stride,
+                           const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_horizontal_edge_c(y_ptr + 4 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_c(y_ptr + 8 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_c(y_ptr + 12 * y_stride, y_stride, blimit);
+}
+
+/* Vertical B Filtering */
+void vp8_loop_filter_bv_c(unsigned char *y_ptr, unsigned char *u_ptr,
+                          unsigned char *v_ptr, int y_stride, int uv_stride,
+                          loop_filter_info *lfi)
+{
+    vp8_loop_filter_vertical_edge_c(y_ptr + 4, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_vertical_edge_c(y_ptr + 8, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_vertical_edge_c(y_ptr + 12, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_loop_filter_vertical_edge_c(u_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_loop_filter_vertical_edge_c(v_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+}
+
+void vp8_loop_filter_bvs_c(unsigned char *y_ptr, int y_stride,
+                           const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_vertical_edge_c(y_ptr + 4, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_c(y_ptr + 8, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_c(y_ptr + 12, y_stride, blimit);
+}
diff --git a/media/libvpx/vp8/common/mbpitch.c b/media/libvpx/vp8/common/mbpitch.c
new file mode 100644
index 000000000..32e1b6640
--- /dev/null
+++ b/media/libvpx/vp8/common/mbpitch.c
@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "blockd.h"
+
+void vp8_setup_block_dptrs(MACROBLOCKD *x)
+{
+    int r, c;
+
+    for (r = 0; r < 4; r++)
+    {
+        for (c = 0; c < 4; c++)
+        {
+            x->block[r*4+c].predictor = x->predictor + r * 4 * 16 + c * 4;
+        }
+    }
+
+    for (r = 0; r < 2; r++)
+    {
+        for (c = 0; c < 2; c++)
+        {
+            x->block[16+r*2+c].predictor = x->predictor + 256 + r * 4 * 8 + c * 4;
+
+        }
+    }
+
+    for (r = 0; r < 2; r++)
+    {
+        for (c = 0; c < 2; c++)
+        {
+            x->block[20+r*2+c].predictor = x->predictor + 320 + r * 4 * 8 + c * 4;
+
+        }
+    }
+
+    for (r = 0; r < 25; r++)
+    {
+        x->block[r].qcoeff  = x->qcoeff  + r * 16;
+        x->block[r].dqcoeff = x->dqcoeff + r * 16;
+        x->block[r].eob     = x->eobs + r;
+    }
+}
+
+void vp8_build_block_doffsets(MACROBLOCKD *x)
+{
+    int block;
+
+    for (block = 0; block < 16; block++) /* y blocks */
+    {
+        x->block[block].offset =
+            (block >> 2) * 4 * x->dst.y_stride + (block & 3) * 4;
+    }
+
+    for (block = 16; block < 20; block++) /* U and V blocks */
+    {
+        x->block[block+4].offset =
+        x->block[block].offset =
+            ((block - 16) >> 1) * 4 * x->dst.uv_stride + (block & 1) * 4;
+    }
+}
diff --git a/media/libvpx/vp8/common/mfqe.c b/media/libvpx/vp8/common/mfqe.c
new file mode 100644
index 000000000..5c0680f42
--- /dev/null
+++ b/media/libvpx/vp8/common/mfqe.c
@@ -0,0 +1,386 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/* MFQE: Multiframe Quality Enhancement
+ * In rate limited situations keyframes may cause significant visual artifacts
+ * commonly referred to as "popping." This file implements a postproccesing
+ * algorithm which blends data from the preceeding frame when there is no
+ * motion and the q from the previous frame is lower which indicates that it is
+ * higher quality.
+ */
+
+#include "./vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "vp8/common/postproc.h"
+#include "vp8/common/variance.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_scale/yv12config.h"
+
+#include <limits.h>
+#include <stdlib.h>
+
+static void filter_by_weight(unsigned char *src, int src_stride,
+                             unsigned char *dst, int dst_stride,
+                             int block_size, int src_weight)
+{
+    int dst_weight = (1 << MFQE_PRECISION) - src_weight;
+    int rounding_bit = 1 << (MFQE_PRECISION - 1);
+    int r, c;
+
+    for (r = 0; r < block_size; r++)
+    {
+        for (c = 0; c < block_size; c++)
+        {
+            dst[c] = (src[c] * src_weight +
+                      dst[c] * dst_weight +
+                      rounding_bit) >> MFQE_PRECISION;
+        }
+        src += src_stride;
+        dst += dst_stride;
+    }
+}
+
+void vp8_filter_by_weight16x16_c(unsigned char *src, int src_stride,
+                                 unsigned char *dst, int dst_stride,
+                                 int src_weight)
+{
+    filter_by_weight(src, src_stride, dst, dst_stride, 16, src_weight);
+}
+
+void vp8_filter_by_weight8x8_c(unsigned char *src, int src_stride,
+                               unsigned char *dst, int dst_stride,
+                               int src_weight)
+{
+    filter_by_weight(src, src_stride, dst, dst_stride, 8, src_weight);
+}
+
+void vp8_filter_by_weight4x4_c(unsigned char *src, int src_stride,
+                               unsigned char *dst, int dst_stride,
+                               int src_weight)
+{
+    filter_by_weight(src, src_stride, dst, dst_stride, 4, src_weight);
+}
+
+static void apply_ifactor(unsigned char *y_src,
+                          int y_src_stride,
+                          unsigned char *y_dst,
+                          int y_dst_stride,
+                          unsigned char *u_src,
+                          unsigned char *v_src,
+                          int uv_src_stride,
+                          unsigned char *u_dst,
+                          unsigned char *v_dst,
+                          int uv_dst_stride,
+                          int block_size,
+                          int src_weight)
+{
+    if (block_size == 16)
+    {
+        vp8_filter_by_weight16x16(y_src, y_src_stride, y_dst, y_dst_stride, src_weight);
+        vp8_filter_by_weight8x8(u_src, uv_src_stride, u_dst, uv_dst_stride, src_weight);
+        vp8_filter_by_weight8x8(v_src, uv_src_stride, v_dst, uv_dst_stride, src_weight);
+    }
+    else /* if (block_size == 8) */
+    {
+        vp8_filter_by_weight8x8(y_src, y_src_stride, y_dst, y_dst_stride, src_weight);
+        vp8_filter_by_weight4x4(u_src, uv_src_stride, u_dst, uv_dst_stride, src_weight);
+        vp8_filter_by_weight4x4(v_src, uv_src_stride, v_dst, uv_dst_stride, src_weight);
+    }
+}
+
+static unsigned int int_sqrt(unsigned int x)
+{
+    unsigned int y = x;
+    unsigned int guess;
+    int p = 1;
+    while (y>>=1) p++;
+    p>>=1;
+
+    guess=0;
+    while (p>=0)
+    {
+        guess |= (1<<p);
+        if (x<guess*guess)
+            guess -= (1<<p);
+        p--;
+    }
+    /* choose between guess or guess+1 */
+    return guess+(guess*guess+guess+1<=x);
+}
+
+#define USE_SSD
+static void multiframe_quality_enhance_block
+(
+    int blksize, /* Currently only values supported are 16, 8 */
+    int qcurr,
+    int qprev,
+    unsigned char *y,
+    unsigned char *u,
+    unsigned char *v,
+    int y_stride,
+    int uv_stride,
+    unsigned char *yd,
+    unsigned char *ud,
+    unsigned char *vd,
+    int yd_stride,
+    int uvd_stride
+)
+{
+    static const unsigned char VP8_ZEROS[16]=
+    {
+         0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+    };
+    int uvblksize = blksize >> 1;
+    int qdiff = qcurr - qprev;
+
+    int i;
+    unsigned char *up;
+    unsigned char *udp;
+    unsigned char *vp;
+    unsigned char *vdp;
+
+    unsigned int act, actd, sad, usad, vsad, sse, thr, thrsq, actrisk;
+
+    if (blksize == 16)
+    {
+        actd = (vpx_variance16x16(yd, yd_stride, VP8_ZEROS, 0, &sse)+128)>>8;
+        act = (vpx_variance16x16(y, y_stride, VP8_ZEROS, 0, &sse)+128)>>8;
+#ifdef USE_SSD
+        vpx_variance16x16(y, y_stride, yd, yd_stride, &sse);
+        sad = (sse + 128)>>8;
+        vpx_variance8x8(u, uv_stride, ud, uvd_stride, &sse);
+        usad = (sse + 32)>>6;
+        vpx_variance8x8(v, uv_stride, vd, uvd_stride, &sse);
+        vsad = (sse + 32)>>6;
+#else
+        sad = (vpx_sad16x16(y, y_stride, yd, yd_stride) + 128) >> 8;
+        usad = (vpx_sad8x8(u, uv_stride, ud, uvd_stride) + 32) >> 6;
+        vsad = (vpx_sad8x8(v, uv_stride, vd, uvd_stride)+ 32) >> 6;
+#endif
+    }
+    else /* if (blksize == 8) */
+    {
+        actd = (vpx_variance8x8(yd, yd_stride, VP8_ZEROS, 0, &sse)+32)>>6;
+        act = (vpx_variance8x8(y, y_stride, VP8_ZEROS, 0, &sse)+32)>>6;
+#ifdef USE_SSD
+        vpx_variance8x8(y, y_stride, yd, yd_stride, &sse);
+        sad = (sse + 32)>>6;
+        vpx_variance4x4(u, uv_stride, ud, uvd_stride, &sse);
+        usad = (sse + 8)>>4;
+        vpx_variance4x4(v, uv_stride, vd, uvd_stride, &sse);
+        vsad = (sse + 8)>>4;
+#else
+        sad = (vpx_sad8x8(y, y_stride, yd, yd_stride) + 32) >> 6;
+        usad = (vpx_sad4x4(u, uv_stride, ud, uvd_stride) + 8) >> 4;
+        vsad = (vpx_sad4x4(v, uv_stride, vd, uvd_stride) + 8) >> 4;
+#endif
+    }
+
+    actrisk = (actd > act * 5);
+
+    /* thr = qdiff/16 + log2(act) + log4(qprev) */
+    thr = (qdiff >> 4);
+    while (actd >>= 1) thr++;
+    while (qprev >>= 2) thr++;
+
+#ifdef USE_SSD
+    thrsq = thr * thr;
+    if (sad < thrsq &&
+        /* additional checks for color mismatch and excessive addition of
+         * high-frequencies */
+        4 * usad < thrsq && 4 * vsad < thrsq && !actrisk)
+#else
+    if (sad < thr &&
+        /* additional checks for color mismatch and excessive addition of
+         * high-frequencies */
+        2 * usad < thr && 2 * vsad < thr && !actrisk)
+#endif
+    {
+        int ifactor;
+#ifdef USE_SSD
+        /* TODO: optimize this later to not need sqr root */
+        sad = int_sqrt(sad);
+#endif
+        ifactor = (sad << MFQE_PRECISION) / thr;
+        ifactor >>= (qdiff >> 5);
+
+        if (ifactor)
+        {
+            apply_ifactor(y, y_stride, yd, yd_stride,
+                          u, v, uv_stride,
+                          ud, vd, uvd_stride,
+                          blksize, ifactor);
+        }
+    }
+    else  /* else implicitly copy from previous frame */
+    {
+        if (blksize == 16)
+        {
+            vp8_copy_mem16x16(y, y_stride, yd, yd_stride);
+            vp8_copy_mem8x8(u, uv_stride, ud, uvd_stride);
+            vp8_copy_mem8x8(v, uv_stride, vd, uvd_stride);
+        }
+        else  /* if (blksize == 8) */
+        {
+            vp8_copy_mem8x8(y, y_stride, yd, yd_stride);
+            for (up = u, udp = ud, i = 0; i < uvblksize; ++i, up += uv_stride, udp += uvd_stride)
+                memcpy(udp, up, uvblksize);
+            for (vp = v, vdp = vd, i = 0; i < uvblksize; ++i, vp += uv_stride, vdp += uvd_stride)
+                memcpy(vdp, vp, uvblksize);
+        }
+    }
+}
+
+static int qualify_inter_mb(const MODE_INFO *mode_info_context, int *map)
+{
+    if (mode_info_context->mbmi.mb_skip_coeff)
+        map[0] = map[1] = map[2] = map[3] = 1;
+    else if (mode_info_context->mbmi.mode==SPLITMV)
+    {
+        static int ndx[4][4] =
+        {
+            {0, 1, 4, 5},
+            {2, 3, 6, 7},
+            {8, 9, 12, 13},
+            {10, 11, 14, 15}
+        };
+        int i, j;
+        for (i=0; i<4; ++i)
+        {
+            map[i] = 1;
+            for (j=0; j<4 && map[j]; ++j)
+                map[i] &= (mode_info_context->bmi[ndx[i][j]].mv.as_mv.row <= 2 &&
+                           mode_info_context->bmi[ndx[i][j]].mv.as_mv.col <= 2);
+        }
+    }
+    else
+    {
+        map[0] = map[1] = map[2] = map[3] =
+            (mode_info_context->mbmi.mode > B_PRED &&
+             abs(mode_info_context->mbmi.mv.as_mv.row) <= 2 &&
+             abs(mode_info_context->mbmi.mv.as_mv.col) <= 2);
+    }
+    return (map[0]+map[1]+map[2]+map[3]);
+}
+
+void vp8_multiframe_quality_enhance
+(
+    VP8_COMMON *cm
+)
+{
+    YV12_BUFFER_CONFIG *show = cm->frame_to_show;
+    YV12_BUFFER_CONFIG *dest = &cm->post_proc_buffer;
+
+    FRAME_TYPE frame_type = cm->frame_type;
+    /* Point at base of Mb MODE_INFO list has motion vectors etc */
+    const MODE_INFO *mode_info_context = cm->show_frame_mi;
+    int mb_row;
+    int mb_col;
+    int totmap, map[4];
+    int qcurr = cm->base_qindex;
+    int qprev = cm->postproc_state.last_base_qindex;
+
+    unsigned char *y_ptr, *u_ptr, *v_ptr;
+    unsigned char *yd_ptr, *ud_ptr, *vd_ptr;
+
+    /* Set up the buffer pointers */
+    y_ptr = show->y_buffer;
+    u_ptr = show->u_buffer;
+    v_ptr = show->v_buffer;
+    yd_ptr = dest->y_buffer;
+    ud_ptr = dest->u_buffer;
+    vd_ptr = dest->v_buffer;
+
+    /* postprocess each macro block */
+    for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+        {
+            /* if motion is high there will likely be no benefit */
+            if (frame_type == INTER_FRAME) totmap = qualify_inter_mb(mode_info_context, map);
+            else totmap = (frame_type == KEY_FRAME ? 4 : 0);
+            if (totmap)
+            {
+                if (totmap < 4)
+                {
+                    int i, j;
+                    for (i=0; i<2; ++i)
+                        for (j=0; j<2; ++j)
+                        {
+                            if (map[i*2+j])
+                            {
+                                multiframe_quality_enhance_block(8, qcurr, qprev,
+                                                                 y_ptr + 8*(i*show->y_stride+j),
+                                                                 u_ptr + 4*(i*show->uv_stride+j),
+                                                                 v_ptr + 4*(i*show->uv_stride+j),
+                                                                 show->y_stride,
+                                                                 show->uv_stride,
+                                                                 yd_ptr + 8*(i*dest->y_stride+j),
+                                                                 ud_ptr + 4*(i*dest->uv_stride+j),
+                                                                 vd_ptr + 4*(i*dest->uv_stride+j),
+                                                                 dest->y_stride,
+                                                                 dest->uv_stride);
+                            }
+                            else
+                            {
+                                /* copy a 8x8 block */
+                                int k;
+                                unsigned char *up = u_ptr + 4*(i*show->uv_stride+j);
+                                unsigned char *udp = ud_ptr + 4*(i*dest->uv_stride+j);
+                                unsigned char *vp = v_ptr + 4*(i*show->uv_stride+j);
+                                unsigned char *vdp = vd_ptr + 4*(i*dest->uv_stride+j);
+                                vp8_copy_mem8x8(y_ptr + 8*(i*show->y_stride+j), show->y_stride,
+                                                yd_ptr + 8*(i*dest->y_stride+j), dest->y_stride);
+                                for (k = 0; k < 4; ++k, up += show->uv_stride, udp += dest->uv_stride,
+                                                        vp += show->uv_stride, vdp += dest->uv_stride)
+                                {
+                                    memcpy(udp, up, 4);
+                                    memcpy(vdp, vp, 4);
+                                }
+                            }
+                        }
+                }
+                else /* totmap = 4 */
+                {
+                    multiframe_quality_enhance_block(16, qcurr, qprev, y_ptr,
+                                                     u_ptr, v_ptr,
+                                                     show->y_stride,
+                                                     show->uv_stride,
+                                                     yd_ptr, ud_ptr, vd_ptr,
+                                                     dest->y_stride,
+                                                     dest->uv_stride);
+                }
+            }
+            else
+            {
+                vp8_copy_mem16x16(y_ptr, show->y_stride, yd_ptr, dest->y_stride);
+                vp8_copy_mem8x8(u_ptr, show->uv_stride, ud_ptr, dest->uv_stride);
+                vp8_copy_mem8x8(v_ptr, show->uv_stride, vd_ptr, dest->uv_stride);
+            }
+            y_ptr += 16;
+            u_ptr += 8;
+            v_ptr += 8;
+            yd_ptr += 16;
+            ud_ptr += 8;
+            vd_ptr += 8;
+            mode_info_context++;     /* step to next MB */
+        }
+
+        y_ptr += show->y_stride  * 16 - 16 * cm->mb_cols;
+        u_ptr += show->uv_stride *  8 - 8 * cm->mb_cols;
+        v_ptr += show->uv_stride *  8 - 8 * cm->mb_cols;
+        yd_ptr += dest->y_stride  * 16 - 16 * cm->mb_cols;
+        ud_ptr += dest->uv_stride *  8 - 8 * cm->mb_cols;
+        vd_ptr += dest->uv_stride *  8 - 8 * cm->mb_cols;
+
+        mode_info_context++;         /* Skip border mb */
+    }
+}
diff --git a/media/libvpx/vp8/common/modecont.c b/media/libvpx/vp8/common/modecont.c
new file mode 100644
index 000000000..86a74bc0f
--- /dev/null
+++ b/media/libvpx/vp8/common/modecont.c
@@ -0,0 +1,40 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "entropy.h"
+
+const int vp8_mode_contexts[6][4] =
+{
+    {
+        /* 0 */
+        7,     1,     1,   143,
+    },
+    {
+        /* 1 */
+        14,    18,    14,   107,
+    },
+    {
+        /* 2 */
+        135,    64,    57,    68,
+    },
+    {
+        /* 3 */
+        60,    56,   128,    65,
+    },
+    {
+        /* 4 */
+        159,   134,   128,    34,
+    },
+    {
+        /* 5 */
+        234,   188,   128,    28,
+    },
+};
diff --git a/media/libvpx/vp8/common/modecont.h b/media/libvpx/vp8/common/modecont.h
new file mode 100644
index 000000000..ff34c33c5
--- /dev/null
+++ b/media/libvpx/vp8/common/modecont.h
@@ -0,0 +1,25 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_MODECONT_H_
+#define VP8_COMMON_MODECONT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const int vp8_mode_contexts[6][4];
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_MODECONT_H_
diff --git a/media/libvpx/vp8/common/mv.h b/media/libvpx/vp8/common/mv.h
new file mode 100644
index 000000000..111ccd63c
--- /dev/null
+++ b/media/libvpx/vp8/common/mv.h
@@ -0,0 +1,36 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_MV_H_
+#define VP8_COMMON_MV_H_
+#include "vpx/vpx_integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct
+{
+    short row;
+    short col;
+} MV;
+
+typedef union int_mv
+{
+    uint32_t  as_int;
+    MV        as_mv;
+} int_mv;        /* facilitates faster equality tests and copies */
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_MV_H_
diff --git a/media/libvpx/vp8/common/onyx.h b/media/libvpx/vp8/common/onyx.h
new file mode 100644
index 000000000..f39b675cd
--- /dev/null
+++ b/media/libvpx/vp8/common/onyx.h
@@ -0,0 +1,282 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ONYX_H_
+#define VP8_COMMON_ONYX_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "vpx_config.h"
+#include "vpx/internal/vpx_codec_internal.h"
+#include "vpx/vp8cx.h"
+#include "vpx/vpx_encoder.h"
+#include "vpx_scale/yv12config.h"
+#include "ppflags.h"
+
+    struct VP8_COMP;
+
+    /* Create/destroy static data structures. */
+
+    typedef enum
+    {
+        NORMAL      = 0,
+        FOURFIVE    = 1,
+        THREEFIVE   = 2,
+        ONETWO      = 3
+
+    } VPX_SCALING;
+
+    typedef enum
+    {
+        USAGE_LOCAL_FILE_PLAYBACK   = 0x0,
+        USAGE_STREAM_FROM_SERVER    = 0x1,
+        USAGE_CONSTRAINED_QUALITY   = 0x2,
+        USAGE_CONSTANT_QUALITY      = 0x3
+    } END_USAGE;
+
+
+    typedef enum
+    {
+        MODE_REALTIME       = 0x0,
+        MODE_GOODQUALITY    = 0x1,
+        MODE_BESTQUALITY    = 0x2,
+        MODE_FIRSTPASS      = 0x3,
+        MODE_SECONDPASS     = 0x4,
+        MODE_SECONDPASS_BEST = 0x5
+    } MODE;
+
+    typedef enum
+    {
+        FRAMEFLAGS_KEY    = 1,
+        FRAMEFLAGS_GOLDEN = 2,
+        FRAMEFLAGS_ALTREF = 4
+    } FRAMETYPE_FLAGS;
+
+
+#include <assert.h>
+    static void Scale2Ratio(int mode, int *hr, int *hs)
+    {
+        switch (mode)
+        {
+        case    NORMAL:
+            *hr = 1;
+            *hs = 1;
+            break;
+        case    FOURFIVE:
+            *hr = 4;
+            *hs = 5;
+            break;
+        case    THREEFIVE:
+            *hr = 3;
+            *hs = 5;
+            break;
+        case    ONETWO:
+            *hr = 1;
+            *hs = 2;
+            break;
+        default:
+            *hr = 1;
+            *hs = 1;
+            assert(0);
+            break;
+        }
+    }
+
+    typedef struct
+    {
+        /* 4 versions of bitstream defined:
+         *   0 best quality/slowest decode, 3 lowest quality/fastest decode
+         */
+        int Version;
+        int Width;
+        int Height;
+        struct vpx_rational  timebase;
+        unsigned int target_bandwidth;    /* kilobits per second */
+
+        /* Parameter used for applying denoiser.
+         * For temporal denoiser: noise_sensitivity = 0 means off,
+         * noise_sensitivity = 1 means temporal denoiser on for Y channel only,
+         * noise_sensitivity = 2 means temporal denoiser on for all channels.
+         * noise_sensitivity = 3 means aggressive denoising mode.
+         * noise_sensitivity >= 4 means adaptive denoising mode.
+         * Temporal denoiser is enabled via the configuration option:
+         * CONFIG_TEMPORAL_DENOISING.
+         * For spatial denoiser: noise_sensitivity controls the amount of
+         * pre-processing blur: noise_sensitivity = 0 means off.
+         * Spatial denoiser invoked under !CONFIG_TEMPORAL_DENOISING.
+         */
+        int noise_sensitivity;
+
+        /* parameter used for sharpening output: recommendation 0: */
+        int Sharpness;
+        int cpu_used;
+        unsigned int rc_max_intra_bitrate_pct;
+        unsigned int screen_content_mode;
+
+        /* mode ->
+         *(0)=Realtime/Live Encoding. This mode is optimized for realtim
+         *    encoding (for example, capturing a television signal or feed
+         *    from a live camera). ( speed setting controls how fast )
+         *(1)=Good Quality Fast Encoding. The encoder balances quality with
+         *    the amount of time it takes to encode the output. ( speed
+         *    setting controls how fast )
+         *(2)=One Pass - Best Quality. The encoder places priority on the
+         *    quality of the output over encoding speed. The output is
+         *    compressed at the highest possible quality. This option takes
+         *    the longest amount of time to encode. ( speed setting ignored
+         *    )
+         *(3)=Two Pass - First Pass. The encoder generates a file of
+         *    statistics for use in the second encoding pass. ( speed
+         *    setting controls how fast )
+         *(4)=Two Pass - Second Pass. The encoder uses the statistics that
+         *    were generated in the first encoding pass to create the
+         *    compressed output. ( speed setting controls how fast )
+         *(5)=Two Pass - Second Pass Best.  The encoder uses the statistics
+         *    that were generated in the first encoding pass to create the
+         *    compressed output using the highest possible quality, and
+         *    taking a longer amount of time to encode.. ( speed setting
+         *    ignored )
+         */
+        int Mode;
+
+        /* Key Framing Operations */
+        int auto_key;       /* automatically detect cut scenes */
+        int key_freq;       /* maximum distance to key frame. */
+
+        /* lagged compression (if allow_lag == 0 lag_in_frames is ignored) */
+        int allow_lag;
+        int lag_in_frames; /* how many frames lag before we start encoding */
+
+        /*
+         * DATARATE CONTROL OPTIONS
+         */
+
+        int end_usage; /* vbr or cbr */
+
+        /* buffer targeting aggressiveness */
+        int under_shoot_pct;
+        int over_shoot_pct;
+
+        /* buffering parameters */
+        int64_t starting_buffer_level;
+        int64_t optimal_buffer_level;
+        int64_t maximum_buffer_size;
+
+        int64_t starting_buffer_level_in_ms;
+        int64_t optimal_buffer_level_in_ms;
+        int64_t maximum_buffer_size_in_ms;
+
+        /* controlling quality */
+        int fixed_q;
+        int worst_allowed_q;
+        int best_allowed_q;
+        int cq_level;
+
+        /* allow internal resizing */
+        int allow_spatial_resampling;
+        int resample_down_water_mark;
+        int resample_up_water_mark;
+
+        /* allow internal frame rate alterations */
+        int allow_df;
+        int drop_frames_water_mark;
+
+        /* two pass datarate control */
+        int two_pass_vbrbias;
+        int two_pass_vbrmin_section;
+        int two_pass_vbrmax_section;
+
+        /*
+         * END DATARATE CONTROL OPTIONS
+         */
+
+        /* these parameters aren't to be used in final build don't use!!! */
+        int play_alternate;
+        int alt_freq;
+        int alt_q;
+        int key_q;
+        int gold_q;
+
+
+        int multi_threaded;   /* how many threads to run the encoder on */
+        int token_partitions; /* how many token partitions to create */
+
+        /* early breakout threshold: for video conf recommend 800 */
+        int encode_breakout;
+
+        /* Bitfield defining the error resiliency features to enable.
+         * Can provide decodable frames after losses in previous
+         * frames and decodable partitions after losses in the same frame.
+         */
+        unsigned int error_resilient_mode;
+
+        int arnr_max_frames;
+        int arnr_strength;
+        int arnr_type;
+
+        vpx_fixed_buf_t        two_pass_stats_in;
+        struct vpx_codec_pkt_list  *output_pkt_list;
+
+        vp8e_tuning tuning;
+
+        /* Temporal scaling parameters */
+        unsigned int number_of_layers;
+        unsigned int target_bitrate[VPX_TS_MAX_PERIODICITY];
+        unsigned int rate_decimator[VPX_TS_MAX_PERIODICITY];
+        unsigned int periodicity;
+        unsigned int layer_id[VPX_TS_MAX_PERIODICITY];
+
+#if CONFIG_MULTI_RES_ENCODING
+        /* Number of total resolutions encoded */
+        unsigned int mr_total_resolutions;
+
+        /* Current encoder ID */
+        unsigned int mr_encoder_id;
+
+        /* Down-sampling factor */
+        vpx_rational_t mr_down_sampling_factor;
+
+        /* Memory location to store low-resolution encoder's mode info */
+        void* mr_low_res_mode_info;
+#endif
+    } VP8_CONFIG;
+
+
+    void vp8_initialize();
+
+    struct VP8_COMP* vp8_create_compressor(VP8_CONFIG *oxcf);
+    void vp8_remove_compressor(struct VP8_COMP* *comp);
+
+    void vp8_init_config(struct VP8_COMP* onyx, VP8_CONFIG *oxcf);
+    void vp8_change_config(struct VP8_COMP* onyx, VP8_CONFIG *oxcf);
+
+    int vp8_receive_raw_frame(struct VP8_COMP* comp, unsigned int frame_flags, YV12_BUFFER_CONFIG *sd, int64_t time_stamp, int64_t end_time_stamp);
+    int vp8_get_compressed_data(struct VP8_COMP* comp, unsigned int *frame_flags, unsigned long *size, unsigned char *dest, unsigned char *dest_end, int64_t *time_stamp, int64_t *time_end, int flush);
+    int vp8_get_preview_raw_frame(struct VP8_COMP* comp, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t *flags);
+
+    int vp8_use_as_reference(struct VP8_COMP* comp, int ref_frame_flags);
+    int vp8_update_reference(struct VP8_COMP* comp, int ref_frame_flags);
+    int vp8_get_reference(struct VP8_COMP* comp, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd);
+    int vp8_set_reference(struct VP8_COMP* comp, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd);
+    int vp8_update_entropy(struct VP8_COMP* comp, int update);
+    int vp8_set_roimap(struct VP8_COMP* comp, unsigned char *map, unsigned int rows, unsigned int cols, int delta_q[4], int delta_lf[4], unsigned int threshold[4]);
+    int vp8_set_active_map(struct VP8_COMP* comp, unsigned char *map, unsigned int rows, unsigned int cols);
+    int vp8_set_internal_size(struct VP8_COMP* comp, VPX_SCALING horiz_mode, VPX_SCALING vert_mode);
+    int vp8_get_quantizer(struct VP8_COMP* c);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // VP8_COMMON_ONYX_H_
diff --git a/media/libvpx/vp8/common/onyxc_int.h b/media/libvpx/vp8/common/onyxc_int.h
new file mode 100644
index 000000000..6d89865c6
--- /dev/null
+++ b/media/libvpx/vp8/common/onyxc_int.h
@@ -0,0 +1,185 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ONYXC_INT_H_
+#define VP8_COMMON_ONYXC_INT_H_
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx/internal/vpx_codec_internal.h"
+#include "loopfilter.h"
+#include "entropymv.h"
+#include "entropy.h"
+#if CONFIG_POSTPROC
+#include "postproc.h"
+#endif
+
+/*#ifdef PACKET_TESTING*/
+#include "header.h"
+/*#endif*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MINQ 0
+#define MAXQ 127
+#define QINDEX_RANGE (MAXQ + 1)
+
+#define NUM_YV12_BUFFERS 4
+
+#define MAX_PARTITIONS 9
+
+typedef struct frame_contexts
+{
+    vp8_prob bmode_prob [VP8_BINTRAMODES-1];
+    vp8_prob ymode_prob [VP8_YMODES-1];   /* interframe intra mode probs */
+    vp8_prob uv_mode_prob [VP8_UV_MODES-1];
+    vp8_prob sub_mv_ref_prob [VP8_SUBMVREFS-1];
+    vp8_prob coef_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
+    MV_CONTEXT mvc[2];
+} FRAME_CONTEXT;
+
+typedef enum
+{
+    ONE_PARTITION  = 0,
+    TWO_PARTITION  = 1,
+    FOUR_PARTITION = 2,
+    EIGHT_PARTITION = 3
+} TOKEN_PARTITION;
+
+typedef enum
+{
+    RECON_CLAMP_REQUIRED        = 0,
+    RECON_CLAMP_NOTREQUIRED     = 1
+} CLAMP_TYPE;
+
+typedef struct VP8Common
+
+{
+    struct vpx_internal_error_info  error;
+
+    DECLARE_ALIGNED(16, short, Y1dequant[QINDEX_RANGE][2]);
+    DECLARE_ALIGNED(16, short, Y2dequant[QINDEX_RANGE][2]);
+    DECLARE_ALIGNED(16, short, UVdequant[QINDEX_RANGE][2]);
+
+    int Width;
+    int Height;
+    int horiz_scale;
+    int vert_scale;
+
+    CLAMP_TYPE  clamp_type;
+
+    YV12_BUFFER_CONFIG *frame_to_show;
+
+    YV12_BUFFER_CONFIG yv12_fb[NUM_YV12_BUFFERS];
+    int fb_idx_ref_cnt[NUM_YV12_BUFFERS];
+    int new_fb_idx, lst_fb_idx, gld_fb_idx, alt_fb_idx;
+
+    YV12_BUFFER_CONFIG temp_scale_frame;
+
+#if CONFIG_POSTPROC
+    YV12_BUFFER_CONFIG post_proc_buffer;
+    YV12_BUFFER_CONFIG post_proc_buffer_int;
+    int post_proc_buffer_int_used;
+    unsigned char *pp_limits_buffer;   /* post-processing filter coefficients */
+#endif
+
+    FRAME_TYPE last_frame_type;  /* Save last frame's frame type for motion search. */
+    FRAME_TYPE frame_type;
+
+    int show_frame;
+
+    int frame_flags;
+    int MBs;
+    int mb_rows;
+    int mb_cols;
+    int mode_info_stride;
+
+    /* profile settings */
+    int mb_no_coeff_skip;
+    int no_lpf;
+    int use_bilinear_mc_filter;
+    int full_pixel;
+
+    int base_qindex;
+
+    int y1dc_delta_q;
+    int y2dc_delta_q;
+    int y2ac_delta_q;
+    int uvdc_delta_q;
+    int uvac_delta_q;
+
+    /* We allocate a MODE_INFO struct for each macroblock, together with
+       an extra row on top and column on the left to simplify prediction. */
+
+    MODE_INFO *mip; /* Base of allocated array */
+    MODE_INFO *mi;  /* Corresponds to upper left visible macroblock */
+#if CONFIG_ERROR_CONCEALMENT
+    MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */
+    MODE_INFO *prev_mi;  /* 'mi' from last frame (points into prev_mip) */
+#endif
+    MODE_INFO *show_frame_mi;  /* MODE_INFO for the last decoded frame
+                                  to show */
+    LOOPFILTERTYPE filter_type;
+
+    loop_filter_info_n lf_info;
+
+    int filter_level;
+    int last_sharpness_level;
+    int sharpness_level;
+
+    int refresh_last_frame;       /* Two state 0 = NO, 1 = YES */
+    int refresh_golden_frame;     /* Two state 0 = NO, 1 = YES */
+    int refresh_alt_ref_frame;     /* Two state 0 = NO, 1 = YES */
+
+    int copy_buffer_to_gf;         /* 0 none, 1 Last to GF, 2 ARF to GF */
+    int copy_buffer_to_arf;        /* 0 none, 1 Last to ARF, 2 GF to ARF */
+
+    int refresh_entropy_probs;    /* Two state 0 = NO, 1 = YES */
+
+    int ref_frame_sign_bias[MAX_REF_FRAMES];    /* Two state 0, 1 */
+
+    /* Y,U,V,Y2 */
+    ENTROPY_CONTEXT_PLANES *above_context;   /* row of context for each plane */
+    ENTROPY_CONTEXT_PLANES left_context;  /* (up to) 4 contexts "" */
+
+    FRAME_CONTEXT lfc; /* last frame entropy */
+    FRAME_CONTEXT fc;  /* this frame entropy */
+
+    unsigned int current_video_frame;
+
+    int version;
+
+    TOKEN_PARTITION multi_token_partition;
+
+#ifdef PACKET_TESTING
+    VP8_HEADER oh;
+#endif
+#if CONFIG_POSTPROC_VISUALIZER
+    double bitrate;
+    double framerate;
+#endif
+
+#if CONFIG_MULTITHREAD
+    int processor_core_count;
+#endif
+#if CONFIG_POSTPROC
+    struct postproc_state  postproc_state;
+#endif
+    int cpu_caps;
+} VP8_COMMON;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_ONYXC_INT_H_
diff --git a/media/libvpx/vp8/common/onyxd.h b/media/libvpx/vp8/common/onyxd.h
new file mode 100644
index 000000000..e37b29f32
--- /dev/null
+++ b/media/libvpx/vp8/common/onyxd.h
@@ -0,0 +1,63 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_ONYXD_H_
+#define VP8_COMMON_ONYXD_H_
+
+
+/* Create/destroy static data structures. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+#include "vpx_scale/yv12config.h"
+#include "ppflags.h"
+#include "vpx_ports/mem.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/vp8.h"
+
+    struct VP8D_COMP;
+
+    typedef struct
+    {
+        int     Width;
+        int     Height;
+        int     Version;
+        int     postprocess;
+        int     max_threads;
+        int     error_concealment;
+    } VP8D_CONFIG;
+
+    typedef enum
+    {
+        VP8D_OK = 0
+    } VP8D_SETTING;
+
+    void vp8dx_initialize(void);
+
+    void vp8dx_set_setting(struct VP8D_COMP* comp, VP8D_SETTING oxst, int x);
+
+    int vp8dx_get_setting(struct VP8D_COMP* comp, VP8D_SETTING oxst);
+
+    int vp8dx_receive_compressed_data(struct VP8D_COMP* comp,
+                                      size_t size, const uint8_t *dest,
+                                      int64_t time_stamp);
+    int vp8dx_get_raw_frame(struct VP8D_COMP* comp, YV12_BUFFER_CONFIG *sd, int64_t *time_stamp, int64_t *time_end_stamp, vp8_ppflags_t *flags);
+
+    vpx_codec_err_t vp8dx_get_reference(struct VP8D_COMP* comp, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd);
+    vpx_codec_err_t vp8dx_set_reference(struct VP8D_COMP* comp, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif  // VP8_COMMON_ONYXD_H_
diff --git a/media/libvpx/vp8/common/postproc.c b/media/libvpx/vp8/common/postproc.c
new file mode 100644
index 000000000..a4e6ae170
--- /dev/null
+++ b/media/libvpx/vp8/common/postproc.c
@@ -0,0 +1,1206 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_scale_rtcd.h"
+#include "vpx_scale/yv12config.h"
+#include "postproc.h"
+#include "common.h"
+#include "vpx_scale/vpx_scale.h"
+#include "systemdependent.h"
+
+#include <limits.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define RGB_TO_YUV(t)                                                                       \
+    ( (0.257*(float)(t>>16)) + (0.504*(float)(t>>8&0xff)) + (0.098*(float)(t&0xff)) + 16),  \
+    (-(0.148*(float)(t>>16)) - (0.291*(float)(t>>8&0xff)) + (0.439*(float)(t&0xff)) + 128), \
+    ( (0.439*(float)(t>>16)) - (0.368*(float)(t>>8&0xff)) - (0.071*(float)(t&0xff)) + 128)
+
+/* global constants */
+#if CONFIG_POSTPROC_VISUALIZER
+static const unsigned char MB_PREDICTION_MODE_colors[MB_MODE_COUNT][3] =
+{
+    { RGB_TO_YUV(0x98FB98) },   /* PaleGreen */
+    { RGB_TO_YUV(0x00FF00) },   /* Green */
+    { RGB_TO_YUV(0xADFF2F) },   /* GreenYellow */
+    { RGB_TO_YUV(0x228B22) },   /* ForestGreen */
+    { RGB_TO_YUV(0x006400) },   /* DarkGreen */
+    { RGB_TO_YUV(0x98F5FF) },   /* Cadet Blue */
+    { RGB_TO_YUV(0x6CA6CD) },   /* Sky Blue */
+    { RGB_TO_YUV(0x00008B) },   /* Dark blue */
+    { RGB_TO_YUV(0x551A8B) },   /* Purple */
+    { RGB_TO_YUV(0xFF0000) }    /* Red */
+};
+
+static const unsigned char B_PREDICTION_MODE_colors[B_MODE_COUNT][3] =
+{
+    { RGB_TO_YUV(0x6633ff) },   /* Purple */
+    { RGB_TO_YUV(0xcc33ff) },   /* Magenta */
+    { RGB_TO_YUV(0xff33cc) },   /* Pink */
+    { RGB_TO_YUV(0xff3366) },   /* Coral */
+    { RGB_TO_YUV(0x3366ff) },   /* Blue */
+    { RGB_TO_YUV(0xed00f5) },   /* Dark Blue */
+    { RGB_TO_YUV(0x2e00b8) },   /* Dark Purple */
+    { RGB_TO_YUV(0xff6633) },   /* Orange */
+    { RGB_TO_YUV(0x33ccff) },   /* Light Blue */
+    { RGB_TO_YUV(0x8ab800) },   /* Green */
+    { RGB_TO_YUV(0xffcc33) },   /* Light Orange */
+    { RGB_TO_YUV(0x33ffcc) },   /* Aqua */
+    { RGB_TO_YUV(0x66ff33) },   /* Light Green */
+    { RGB_TO_YUV(0xccff33) },   /* Yellow */
+};
+
+static const unsigned char MV_REFERENCE_FRAME_colors[MAX_REF_FRAMES][3] =
+{
+    { RGB_TO_YUV(0x00ff00) },   /* Blue */
+    { RGB_TO_YUV(0x0000ff) },   /* Green */
+    { RGB_TO_YUV(0xffff00) },   /* Yellow */
+    { RGB_TO_YUV(0xff0000) },   /* Red */
+};
+#endif
+
+const short vp8_rv[] =
+{
+    8, 5, 2, 2, 8, 12, 4, 9, 8, 3,
+    0, 3, 9, 0, 0, 0, 8, 3, 14, 4,
+    10, 1, 11, 14, 1, 14, 9, 6, 12, 11,
+    8, 6, 10, 0, 0, 8, 9, 0, 3, 14,
+    8, 11, 13, 4, 2, 9, 0, 3, 9, 6,
+    1, 2, 3, 14, 13, 1, 8, 2, 9, 7,
+    3, 3, 1, 13, 13, 6, 6, 5, 2, 7,
+    11, 9, 11, 8, 7, 3, 2, 0, 13, 13,
+    14, 4, 12, 5, 12, 10, 8, 10, 13, 10,
+    4, 14, 4, 10, 0, 8, 11, 1, 13, 7,
+    7, 14, 6, 14, 13, 2, 13, 5, 4, 4,
+    0, 10, 0, 5, 13, 2, 12, 7, 11, 13,
+    8, 0, 4, 10, 7, 2, 7, 2, 2, 5,
+    3, 4, 7, 3, 3, 14, 14, 5, 9, 13,
+    3, 14, 3, 6, 3, 0, 11, 8, 13, 1,
+    13, 1, 12, 0, 10, 9, 7, 6, 2, 8,
+    5, 2, 13, 7, 1, 13, 14, 7, 6, 7,
+    9, 6, 10, 11, 7, 8, 7, 5, 14, 8,
+    4, 4, 0, 8, 7, 10, 0, 8, 14, 11,
+    3, 12, 5, 7, 14, 3, 14, 5, 2, 6,
+    11, 12, 12, 8, 0, 11, 13, 1, 2, 0,
+    5, 10, 14, 7, 8, 0, 4, 11, 0, 8,
+    0, 3, 10, 5, 8, 0, 11, 6, 7, 8,
+    10, 7, 13, 9, 2, 5, 1, 5, 10, 2,
+    4, 3, 5, 6, 10, 8, 9, 4, 11, 14,
+    0, 10, 0, 5, 13, 2, 12, 7, 11, 13,
+    8, 0, 4, 10, 7, 2, 7, 2, 2, 5,
+    3, 4, 7, 3, 3, 14, 14, 5, 9, 13,
+    3, 14, 3, 6, 3, 0, 11, 8, 13, 1,
+    13, 1, 12, 0, 10, 9, 7, 6, 2, 8,
+    5, 2, 13, 7, 1, 13, 14, 7, 6, 7,
+    9, 6, 10, 11, 7, 8, 7, 5, 14, 8,
+    4, 4, 0, 8, 7, 10, 0, 8, 14, 11,
+    3, 12, 5, 7, 14, 3, 14, 5, 2, 6,
+    11, 12, 12, 8, 0, 11, 13, 1, 2, 0,
+    5, 10, 14, 7, 8, 0, 4, 11, 0, 8,
+    0, 3, 10, 5, 8, 0, 11, 6, 7, 8,
+    10, 7, 13, 9, 2, 5, 1, 5, 10, 2,
+    4, 3, 5, 6, 10, 8, 9, 4, 11, 14,
+    3, 8, 3, 7, 8, 5, 11, 4, 12, 3,
+    11, 9, 14, 8, 14, 13, 4, 3, 1, 2,
+    14, 6, 5, 4, 4, 11, 4, 6, 2, 1,
+    5, 8, 8, 12, 13, 5, 14, 10, 12, 13,
+    0, 9, 5, 5, 11, 10, 13, 9, 10, 13,
+};
+
+extern void vp8_blit_text(const char *msg, unsigned char *address, const int pitch);
+extern void vp8_blit_line(int x0, int x1, int y0, int y1, unsigned char *image, const int pitch);
+/***********************************************************************************************************
+ */
+void vp8_post_proc_down_and_across_mb_row_c
+(
+    unsigned char *src_ptr,
+    unsigned char *dst_ptr,
+    int src_pixels_per_line,
+    int dst_pixels_per_line,
+    int cols,
+    unsigned char *f,
+    int size
+)
+{
+    unsigned char *p_src, *p_dst;
+    int row;
+    int col;
+    unsigned char v;
+    unsigned char d[4];
+
+    for (row = 0; row < size; row++)
+    {
+        /* post_proc_down for one row */
+        p_src = src_ptr;
+        p_dst = dst_ptr;
+
+        for (col = 0; col < cols; col++)
+        {
+            unsigned char p_above2 = p_src[col - 2 * src_pixels_per_line];
+            unsigned char p_above1 = p_src[col - src_pixels_per_line];
+            unsigned char p_below1 = p_src[col + src_pixels_per_line];
+            unsigned char p_below2 = p_src[col + 2 * src_pixels_per_line];
+
+            v = p_src[col];
+
+            if ((abs(v - p_above2) < f[col]) && (abs(v - p_above1) < f[col])
+                && (abs(v - p_below1) < f[col]) && (abs(v - p_below2) < f[col]))
+            {
+                unsigned char k1, k2, k3;
+                k1 = (p_above2 + p_above1 + 1) >> 1;
+                k2 = (p_below2 + p_below1 + 1) >> 1;
+                k3 = (k1 + k2 + 1) >> 1;
+                v = (k3 + v + 1) >> 1;
+            }
+
+            p_dst[col] = v;
+        }
+
+        /* now post_proc_across */
+        p_src = dst_ptr;
+        p_dst = dst_ptr;
+
+        p_src[-2] = p_src[-1] = p_src[0];
+        p_src[cols] = p_src[cols + 1] = p_src[cols - 1];
+
+        for (col = 0; col < cols; col++)
+        {
+            v = p_src[col];
+
+            if ((abs(v - p_src[col - 2]) < f[col])
+                && (abs(v - p_src[col - 1]) < f[col])
+                && (abs(v - p_src[col + 1]) < f[col])
+                && (abs(v - p_src[col + 2]) < f[col]))
+            {
+                unsigned char k1, k2, k3;
+                k1 = (p_src[col - 2] + p_src[col - 1] + 1) >> 1;
+                k2 = (p_src[col + 2] + p_src[col + 1] + 1) >> 1;
+                k3 = (k1 + k2 + 1) >> 1;
+                v = (k3 + v + 1) >> 1;
+            }
+
+            d[col & 3] = v;
+
+            if (col >= 2)
+                p_dst[col - 2] = d[(col - 2) & 3];
+        }
+
+        /* handle the last two pixels */
+        p_dst[col - 2] = d[(col - 2) & 3];
+        p_dst[col - 1] = d[(col - 1) & 3];
+
+        /* next row */
+        src_ptr += src_pixels_per_line;
+        dst_ptr += dst_pixels_per_line;
+    }
+}
+
+static int q2mbl(int x)
+{
+    if (x < 20) x = 20;
+
+    x = 50 + (x - 50) * 10 / 8;
+    return x * x / 3;
+}
+
+void vp8_mbpost_proc_across_ip_c(unsigned char *src, int pitch, int rows, int cols, int flimit)
+{
+    int r, c, i;
+
+    unsigned char *s = src;
+    unsigned char d[16];
+
+    for (r = 0; r < rows; r++)
+    {
+        int sumsq = 0;
+        int sum   = 0;
+
+        for (i = -8; i < 0; i++)
+          s[i]=s[0];
+
+        /* 17 avoids valgrind warning - we buffer values in c in d
+         * and only write them when we've read 8 ahead...
+         */
+        for (i = 0; i < 17; i++)
+          s[i+cols]=s[cols-1];
+
+        for (i = -8; i <= 6; i++)
+        {
+            sumsq += s[i] * s[i];
+            sum   += s[i];
+            d[i+8] = 0;
+        }
+
+        for (c = 0; c < cols + 8; c++)
+        {
+            int x = s[c+7] - s[c-8];
+            int y = s[c+7] + s[c-8];
+
+            sum  += x;
+            sumsq += x * y;
+
+            d[c&15] = s[c];
+
+            if (sumsq * 15 - sum * sum < flimit)
+            {
+                d[c&15] = (8 + sum + s[c]) >> 4;
+            }
+
+            s[c-8] = d[(c-8)&15];
+        }
+
+        s += pitch;
+    }
+}
+
+void vp8_mbpost_proc_down_c(unsigned char *dst, int pitch, int rows, int cols, int flimit)
+{
+    int r, c, i;
+    const short *rv3 = &vp8_rv[63&rand()];
+
+    for (c = 0; c < cols; c++ )
+    {
+        unsigned char *s = &dst[c];
+        int sumsq = 0;
+        int sum   = 0;
+        unsigned char d[16];
+        const short *rv2 = rv3 + ((c * 17) & 127);
+
+        for (i = -8; i < 0; i++)
+          s[i*pitch]=s[0];
+
+        /* 17 avoids valgrind warning - we buffer values in c in d
+         * and only write them when we've read 8 ahead...
+         */
+        for (i = 0; i < 17; i++)
+          s[(i+rows)*pitch]=s[(rows-1)*pitch];
+
+        for (i = -8; i <= 6; i++)
+        {
+            sumsq += s[i*pitch] * s[i*pitch];
+            sum   += s[i*pitch];
+        }
+
+        for (r = 0; r < rows + 8; r++)
+        {
+            sumsq += s[7*pitch] * s[ 7*pitch] - s[-8*pitch] * s[-8*pitch];
+            sum  += s[7*pitch] - s[-8*pitch];
+            d[r&15] = s[0];
+
+            if (sumsq * 15 - sum * sum < flimit)
+            {
+                d[r&15] = (rv2[r&127] + sum + s[0]) >> 4;
+            }
+            if (r >= 8)
+              s[-8*pitch] = d[(r-8)&15];
+            s += pitch;
+        }
+    }
+}
+
+#if CONFIG_POSTPROC
+static void vp8_de_mblock(YV12_BUFFER_CONFIG         *post,
+                          int                         q)
+{
+    vp8_mbpost_proc_across_ip(post->y_buffer, post->y_stride, post->y_height,
+                              post->y_width, q2mbl(q));
+    vp8_mbpost_proc_down(post->y_buffer, post->y_stride, post->y_height,
+                         post->y_width, q2mbl(q));
+}
+
+void vp8_deblock(VP8_COMMON                 *cm,
+                 YV12_BUFFER_CONFIG         *source,
+                 YV12_BUFFER_CONFIG         *post,
+                 int                         q,
+                 int                         low_var_thresh,
+                 int                         flag)
+{
+    double level = 6.0e-05 * q * q * q - .0067 * q * q + .306 * q + .0065;
+    int ppl = (int)(level + .5);
+
+    const MODE_INFO *mode_info_context = cm->show_frame_mi;
+    int mbr, mbc;
+
+    /* The pixel thresholds are adjusted according to if or not the macroblock
+     * is a skipped block.  */
+    unsigned char *ylimits = cm->pp_limits_buffer;
+    unsigned char *uvlimits = cm->pp_limits_buffer + 16 * cm->mb_cols;
+    (void) low_var_thresh;
+    (void) flag;
+
+    if (ppl > 0)
+    {
+        for (mbr = 0; mbr < cm->mb_rows; mbr++)
+        {
+            unsigned char *ylptr = ylimits;
+            unsigned char *uvlptr = uvlimits;
+            for (mbc = 0; mbc < cm->mb_cols; mbc++)
+            {
+                unsigned char mb_ppl;
+
+                if (mode_info_context->mbmi.mb_skip_coeff)
+                    mb_ppl = (unsigned char)ppl >> 1;
+                else
+                    mb_ppl = (unsigned char)ppl;
+
+                memset(ylptr, mb_ppl, 16);
+                memset(uvlptr, mb_ppl, 8);
+
+                ylptr += 16;
+                uvlptr += 8;
+                mode_info_context++;
+            }
+            mode_info_context++;
+
+            vp8_post_proc_down_and_across_mb_row(
+                source->y_buffer + 16 * mbr * source->y_stride,
+                post->y_buffer + 16 * mbr * post->y_stride, source->y_stride,
+                post->y_stride, source->y_width, ylimits, 16);
+
+            vp8_post_proc_down_and_across_mb_row(
+                source->u_buffer + 8 * mbr * source->uv_stride,
+                post->u_buffer + 8 * mbr * post->uv_stride, source->uv_stride,
+                post->uv_stride, source->uv_width, uvlimits, 8);
+            vp8_post_proc_down_and_across_mb_row(
+                source->v_buffer + 8 * mbr * source->uv_stride,
+                post->v_buffer + 8 * mbr * post->uv_stride, source->uv_stride,
+                post->uv_stride, source->uv_width, uvlimits, 8);
+        }
+    } else
+    {
+        vp8_yv12_copy_frame(source, post);
+    }
+}
+#endif
+
+void vp8_de_noise(VP8_COMMON                 *cm,
+                  YV12_BUFFER_CONFIG         *source,
+                  YV12_BUFFER_CONFIG         *post,
+                  int                         q,
+                  int                         low_var_thresh,
+                  int                         flag,
+                  int                         uvfilter)
+{
+    int mbr;
+    double level = 6.0e-05 * q * q * q - .0067 * q * q + .306 * q + .0065;
+    int ppl = (int)(level + .5);
+    int mb_rows = cm->mb_rows;
+    int mb_cols = cm->mb_cols;
+    unsigned char *limits = cm->pp_limits_buffer;;
+    (void) post;
+    (void) low_var_thresh;
+    (void) flag;
+
+    memset(limits, (unsigned char)ppl, 16 * mb_cols);
+
+    /* TODO: The original code don't filter the 2 outer rows and columns. */
+    for (mbr = 0; mbr < mb_rows; mbr++)
+    {
+        vp8_post_proc_down_and_across_mb_row(
+            source->y_buffer + 16 * mbr * source->y_stride,
+            source->y_buffer + 16 * mbr * source->y_stride,
+            source->y_stride, source->y_stride, source->y_width, limits, 16);
+        if (uvfilter == 1) {
+          vp8_post_proc_down_and_across_mb_row(
+              source->u_buffer + 8 * mbr * source->uv_stride,
+              source->u_buffer + 8 * mbr * source->uv_stride,
+              source->uv_stride, source->uv_stride, source->uv_width, limits,
+              8);
+          vp8_post_proc_down_and_across_mb_row(
+              source->v_buffer + 8 * mbr * source->uv_stride,
+              source->v_buffer + 8 * mbr * source->uv_stride,
+              source->uv_stride, source->uv_stride, source->uv_width, limits,
+              8);
+        }
+    }
+}
+
+static double gaussian(double sigma, double mu, double x)
+{
+    return 1 / (sigma * sqrt(2.0 * 3.14159265)) *
+           (exp(-(x - mu) * (x - mu) / (2 * sigma * sigma)));
+}
+
+static void fillrd(struct postproc_state *state, int q, int a)
+{
+    char char_dist[300];
+
+    double sigma;
+    int i;
+
+    vp8_clear_system_state();
+
+
+    sigma = a + .5 + .6 * (63 - q) / 63.0;
+
+    /* set up a lookup table of 256 entries that matches
+     * a gaussian distribution with sigma determined by q.
+     */
+    {
+        int next, j;
+
+        next = 0;
+
+        for (i = -32; i < 32; i++)
+        {
+            const int v = (int)(.5 + 256 * gaussian(sigma, 0, i));
+
+            if (v)
+            {
+                for (j = 0; j < v; j++)
+                {
+                    char_dist[next+j] = (char) i;
+                }
+
+                next = next + j;
+            }
+
+        }
+
+        for (; next < 256; next++)
+            char_dist[next] = 0;
+
+    }
+
+    for (i = 0; i < 3072; i++)
+    {
+        state->noise[i] = char_dist[rand() & 0xff];
+    }
+
+    for (i = 0; i < 16; i++)
+    {
+        state->blackclamp[i] = -char_dist[0];
+        state->whiteclamp[i] = -char_dist[0];
+        state->bothclamp[i] = -2 * char_dist[0];
+    }
+
+    state->last_q = q;
+    state->last_noise = a;
+}
+
+/****************************************************************************
+ *
+ *  ROUTINE       : plane_add_noise_c
+ *
+ *  INPUTS        : unsigned char *Start    starting address of buffer to add gaussian
+ *                                  noise to
+ *                  unsigned int Width    width of plane
+ *                  unsigned int Height   height of plane
+ *                  int  Pitch    distance between subsequent lines of frame
+ *                  int  q        quantizer used to determine amount of noise
+ *                                  to add
+ *
+ *  OUTPUTS       : None.
+ *
+ *  RETURNS       : void.
+ *
+ *  FUNCTION      : adds gaussian noise to a plane of pixels
+ *
+ *  SPECIAL NOTES : None.
+ *
+ ****************************************************************************/
+void vp8_plane_add_noise_c(unsigned char *Start, char *noise,
+                           char blackclamp[16],
+                           char whiteclamp[16],
+                           char bothclamp[16],
+                           unsigned int Width, unsigned int Height, int Pitch)
+{
+    unsigned int i, j;
+    (void)bothclamp;
+
+    for (i = 0; i < Height; i++)
+    {
+        unsigned char *Pos = Start + i * Pitch;
+        char  *Ref = (char *)(noise + (rand() & 0xff));
+
+        for (j = 0; j < Width; j++)
+        {
+            if (Pos[j] < blackclamp[0])
+                Pos[j] = blackclamp[0];
+
+            if (Pos[j] > 255 + whiteclamp[0])
+                Pos[j] = 255 + whiteclamp[0];
+
+            Pos[j] += Ref[j];
+        }
+    }
+}
+
+/* Blend the macro block with a solid colored square.  Leave the
+ * edges unblended to give distinction to macro blocks in areas
+ * filled with the same color block.
+ */
+void vp8_blend_mb_inner_c (unsigned char *y, unsigned char *u, unsigned char *v,
+                        int y_1, int u_1, int v_1, int alpha, int stride)
+{
+    int i, j;
+    int y1_const = y_1*((1<<16)-alpha);
+    int u1_const = u_1*((1<<16)-alpha);
+    int v1_const = v_1*((1<<16)-alpha);
+
+    y += 2*stride + 2;
+    for (i = 0; i < 12; i++)
+    {
+        for (j = 0; j < 12; j++)
+        {
+            y[j] = (y[j]*alpha + y1_const)>>16;
+        }
+        y += stride;
+    }
+
+    stride >>= 1;
+
+    u += stride + 1;
+    v += stride + 1;
+
+    for (i = 0; i < 6; i++)
+    {
+        for (j = 0; j < 6; j++)
+        {
+            u[j] = (u[j]*alpha + u1_const)>>16;
+            v[j] = (v[j]*alpha + v1_const)>>16;
+        }
+        u += stride;
+        v += stride;
+    }
+}
+
+/* Blend only the edge of the macro block.  Leave center
+ * unblended to allow for other visualizations to be layered.
+ */
+void vp8_blend_mb_outer_c (unsigned char *y, unsigned char *u, unsigned char *v,
+                        int y_1, int u_1, int v_1, int alpha, int stride)
+{
+    int i, j;
+    int y1_const = y_1*((1<<16)-alpha);
+    int u1_const = u_1*((1<<16)-alpha);
+    int v1_const = v_1*((1<<16)-alpha);
+
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 16; j++)
+        {
+            y[j] = (y[j]*alpha + y1_const)>>16;
+        }
+        y += stride;
+    }
+
+    for (i = 0; i < 12; i++)
+    {
+        y[0]  = (y[0]*alpha  + y1_const)>>16;
+        y[1]  = (y[1]*alpha  + y1_const)>>16;
+        y[14] = (y[14]*alpha + y1_const)>>16;
+        y[15] = (y[15]*alpha + y1_const)>>16;
+        y += stride;
+    }
+
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 16; j++)
+        {
+            y[j] = (y[j]*alpha + y1_const)>>16;
+        }
+        y += stride;
+    }
+
+    stride >>= 1;
+
+    for (j = 0; j < 8; j++)
+    {
+        u[j] = (u[j]*alpha + u1_const)>>16;
+        v[j] = (v[j]*alpha + v1_const)>>16;
+    }
+    u += stride;
+    v += stride;
+
+    for (i = 0; i < 6; i++)
+    {
+        u[0] = (u[0]*alpha + u1_const)>>16;
+        v[0] = (v[0]*alpha + v1_const)>>16;
+
+        u[7] = (u[7]*alpha + u1_const)>>16;
+        v[7] = (v[7]*alpha + v1_const)>>16;
+
+        u += stride;
+        v += stride;
+    }
+
+    for (j = 0; j < 8; j++)
+    {
+        u[j] = (u[j]*alpha + u1_const)>>16;
+        v[j] = (v[j]*alpha + v1_const)>>16;
+    }
+}
+
+void vp8_blend_b_c (unsigned char *y, unsigned char *u, unsigned char *v,
+                        int y_1, int u_1, int v_1, int alpha, int stride)
+{
+    int i, j;
+    int y1_const = y_1*((1<<16)-alpha);
+    int u1_const = u_1*((1<<16)-alpha);
+    int v1_const = v_1*((1<<16)-alpha);
+
+    for (i = 0; i < 4; i++)
+    {
+        for (j = 0; j < 4; j++)
+        {
+            y[j] = (y[j]*alpha + y1_const)>>16;
+        }
+        y += stride;
+    }
+
+    stride >>= 1;
+
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 2; j++)
+        {
+            u[j] = (u[j]*alpha + u1_const)>>16;
+            v[j] = (v[j]*alpha + v1_const)>>16;
+        }
+        u += stride;
+        v += stride;
+    }
+}
+
+static void constrain_line (int x_0, int *x_1, int y_0, int *y_1, int width, int height)
+{
+    int dx;
+    int dy;
+
+    if (*x_1 > width)
+    {
+        dx = *x_1 - x_0;
+        dy = *y_1 - y_0;
+
+        *x_1 = width;
+        if (dx)
+            *y_1 = ((width-x_0)*dy)/dx + y_0;
+    }
+    if (*x_1 < 0)
+    {
+        dx = *x_1 - x_0;
+        dy = *y_1 - y_0;
+
+        *x_1 = 0;
+        if (dx)
+            *y_1 = ((0-x_0)*dy)/dx + y_0;
+    }
+    if (*y_1 > height)
+    {
+        dx = *x_1 - x_0;
+        dy = *y_1 - y_0;
+
+        *y_1 = height;
+        if (dy)
+            *x_1 = ((height-y_0)*dx)/dy + x_0;
+    }
+    if (*y_1 < 0)
+    {
+        dx = *x_1 - x_0;
+        dy = *y_1 - y_0;
+
+        *y_1 = 0;
+        if (dy)
+            *x_1 = ((0-y_0)*dx)/dy + x_0;
+    }
+}
+
+#if CONFIG_POSTPROC
+int vp8_post_proc_frame(VP8_COMMON *oci, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t *ppflags)
+{
+    int q = oci->filter_level * 10 / 6;
+    int flags = ppflags->post_proc_flag;
+    int deblock_level = ppflags->deblocking_level;
+    int noise_level = ppflags->noise_level;
+
+    if (!oci->frame_to_show)
+        return -1;
+
+    if (q > 63)
+        q = 63;
+
+    if (!flags)
+    {
+        *dest = *oci->frame_to_show;
+
+        /* handle problem with extending borders */
+        dest->y_width = oci->Width;
+        dest->y_height = oci->Height;
+        dest->uv_height = dest->y_height / 2;
+        oci->postproc_state.last_base_qindex = oci->base_qindex;
+        oci->postproc_state.last_frame_valid = 1;
+        return 0;
+    }
+
+    /* Allocate post_proc_buffer_int if needed */
+    if ((flags & VP8D_MFQE) && !oci->post_proc_buffer_int_used)
+    {
+        if ((flags & VP8D_DEBLOCK) || (flags & VP8D_DEMACROBLOCK))
+        {
+            int width = (oci->Width + 15) & ~15;
+            int height = (oci->Height + 15) & ~15;
+
+            if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer_int,
+                                            width, height, VP8BORDERINPIXELS))
+                vpx_internal_error(&oci->error, VPX_CODEC_MEM_ERROR,
+                                   "Failed to allocate MFQE framebuffer");
+
+            oci->post_proc_buffer_int_used = 1;
+
+            /* insure that postproc is set to all 0's so that post proc
+             * doesn't pull random data in from edge
+             */
+            memset((&oci->post_proc_buffer_int)->buffer_alloc,128,(&oci->post_proc_buffer)->frame_size);
+
+        }
+    }
+
+    vp8_clear_system_state();
+
+    if ((flags & VP8D_MFQE) &&
+         oci->postproc_state.last_frame_valid &&
+         oci->current_video_frame >= 2 &&
+         oci->postproc_state.last_base_qindex < 60 &&
+         oci->base_qindex - oci->postproc_state.last_base_qindex >= 20)
+    {
+        vp8_multiframe_quality_enhance(oci);
+        if (((flags & VP8D_DEBLOCK) || (flags & VP8D_DEMACROBLOCK)) &&
+            oci->post_proc_buffer_int_used)
+        {
+            vp8_yv12_copy_frame(&oci->post_proc_buffer, &oci->post_proc_buffer_int);
+            if (flags & VP8D_DEMACROBLOCK)
+            {
+                vp8_deblock(oci, &oci->post_proc_buffer_int, &oci->post_proc_buffer,
+                                               q + (deblock_level - 5) * 10, 1, 0);
+                vp8_de_mblock(&oci->post_proc_buffer,
+                              q + (deblock_level - 5) * 10);
+            }
+            else if (flags & VP8D_DEBLOCK)
+            {
+                vp8_deblock(oci, &oci->post_proc_buffer_int, &oci->post_proc_buffer,
+                            q, 1, 0);
+            }
+        }
+        /* Move partially towards the base q of the previous frame */
+        oci->postproc_state.last_base_qindex = (3*oci->postproc_state.last_base_qindex + oci->base_qindex)>>2;
+    }
+    else if (flags & VP8D_DEMACROBLOCK)
+    {
+        vp8_deblock(oci, oci->frame_to_show, &oci->post_proc_buffer,
+                                     q + (deblock_level - 5) * 10, 1, 0);
+        vp8_de_mblock(&oci->post_proc_buffer, q + (deblock_level - 5) * 10);
+
+        oci->postproc_state.last_base_qindex = oci->base_qindex;
+    }
+    else if (flags & VP8D_DEBLOCK)
+    {
+        vp8_deblock(oci, oci->frame_to_show, &oci->post_proc_buffer,
+                    q, 1, 0);
+        oci->postproc_state.last_base_qindex = oci->base_qindex;
+    }
+    else
+    {
+        vp8_yv12_copy_frame(oci->frame_to_show, &oci->post_proc_buffer);
+        oci->postproc_state.last_base_qindex = oci->base_qindex;
+    }
+    oci->postproc_state.last_frame_valid = 1;
+
+    if (flags & VP8D_ADDNOISE)
+    {
+        if (oci->postproc_state.last_q != q
+            || oci->postproc_state.last_noise != noise_level)
+        {
+            fillrd(&oci->postproc_state, 63 - q, noise_level);
+        }
+
+        vp8_plane_add_noise
+        (oci->post_proc_buffer.y_buffer,
+         oci->postproc_state.noise,
+         oci->postproc_state.blackclamp,
+         oci->postproc_state.whiteclamp,
+         oci->postproc_state.bothclamp,
+         oci->post_proc_buffer.y_width, oci->post_proc_buffer.y_height,
+         oci->post_proc_buffer.y_stride);
+    }
+
+#if CONFIG_POSTPROC_VISUALIZER
+    if (flags & VP8D_DEBUG_TXT_FRAME_INFO)
+    {
+        char message[512];
+        sprintf(message, "F%1dG%1dQ%3dF%3dP%d_s%dx%d",
+                (oci->frame_type == KEY_FRAME),
+                oci->refresh_golden_frame,
+                oci->base_qindex,
+                oci->filter_level,
+                flags,
+                oci->mb_cols, oci->mb_rows);
+        vp8_blit_text(message, oci->post_proc_buffer.y_buffer, oci->post_proc_buffer.y_stride);
+    }
+
+    if (flags & VP8D_DEBUG_TXT_MBLK_MODES)
+    {
+        int i, j;
+        unsigned char *y_ptr;
+        YV12_BUFFER_CONFIG *post = &oci->post_proc_buffer;
+        int mb_rows = post->y_height >> 4;
+        int mb_cols = post->y_width  >> 4;
+        int mb_index = 0;
+        MODE_INFO *mi = oci->mi;
+
+        y_ptr = post->y_buffer + 4 * post->y_stride + 4;
+
+        /* vp8_filter each macro block */
+        for (i = 0; i < mb_rows; i++)
+        {
+            for (j = 0; j < mb_cols; j++)
+            {
+                char zz[4];
+
+                sprintf(zz, "%c", mi[mb_index].mbmi.mode + 'a');
+
+                vp8_blit_text(zz, y_ptr, post->y_stride);
+                mb_index ++;
+                y_ptr += 16;
+            }
+
+            mb_index ++; /* border */
+            y_ptr += post->y_stride  * 16 - post->y_width;
+
+        }
+    }
+
+    if (flags & VP8D_DEBUG_TXT_DC_DIFF)
+    {
+        int i, j;
+        unsigned char *y_ptr;
+        YV12_BUFFER_CONFIG *post = &oci->post_proc_buffer;
+        int mb_rows = post->y_height >> 4;
+        int mb_cols = post->y_width  >> 4;
+        int mb_index = 0;
+        MODE_INFO *mi = oci->mi;
+
+        y_ptr = post->y_buffer + 4 * post->y_stride + 4;
+
+        /* vp8_filter each macro block */
+        for (i = 0; i < mb_rows; i++)
+        {
+            for (j = 0; j < mb_cols; j++)
+            {
+                char zz[4];
+                int dc_diff = !(mi[mb_index].mbmi.mode != B_PRED &&
+                              mi[mb_index].mbmi.mode != SPLITMV &&
+                              mi[mb_index].mbmi.mb_skip_coeff);
+
+                if (oci->frame_type == KEY_FRAME)
+                    sprintf(zz, "a");
+                else
+                    sprintf(zz, "%c", dc_diff + '0');
+
+                vp8_blit_text(zz, y_ptr, post->y_stride);
+                mb_index ++;
+                y_ptr += 16;
+            }
+
+            mb_index ++; /* border */
+            y_ptr += post->y_stride  * 16 - post->y_width;
+
+        }
+    }
+
+    if (flags & VP8D_DEBUG_TXT_RATE_INFO)
+    {
+        char message[512];
+        sprintf(message, "Bitrate: %10.2f framerate: %10.2f ", oci->bitrate, oci->framerate);
+        vp8_blit_text(message, oci->post_proc_buffer.y_buffer, oci->post_proc_buffer.y_stride);
+    }
+
+    /* Draw motion vectors */
+    if ((flags & VP8D_DEBUG_DRAW_MV) && ppflags->display_mv_flag)
+    {
+        YV12_BUFFER_CONFIG *post = &oci->post_proc_buffer;
+        int width  = post->y_width;
+        int height = post->y_height;
+        unsigned char *y_buffer = oci->post_proc_buffer.y_buffer;
+        int y_stride = oci->post_proc_buffer.y_stride;
+        MODE_INFO *mi = oci->mi;
+        int x0, y0;
+
+        for (y0 = 0; y0 < height; y0 += 16)
+        {
+            for (x0 = 0; x0 < width; x0 += 16)
+            {
+                int x1, y1;
+
+                if (!(ppflags->display_mv_flag & (1<<mi->mbmi.mode)))
+                {
+                    mi++;
+                    continue;
+                }
+
+                if (mi->mbmi.mode == SPLITMV)
+                {
+                    switch (mi->mbmi.partitioning)
+                    {
+                        case 0 :    /* mv_top_bottom */
+                        {
+                            union b_mode_info *bmi = &mi->bmi[0];
+                            MV *mv = &bmi->mv.as_mv;
+
+                            x1 = x0 + 8 + (mv->col >> 3);
+                            y1 = y0 + 4 + (mv->row >> 3);
+
+                            constrain_line (x0+8, &x1, y0+4, &y1, width, height);
+                            vp8_blit_line  (x0+8,  x1, y0+4,  y1, y_buffer, y_stride);
+
+                            bmi = &mi->bmi[8];
+
+                            x1 = x0 + 8 + (mv->col >> 3);
+                            y1 = y0 +12 + (mv->row >> 3);
+
+                            constrain_line (x0+8, &x1, y0+12, &y1, width, height);
+                            vp8_blit_line  (x0+8,  x1, y0+12,  y1, y_buffer, y_stride);
+
+                            break;
+                        }
+                        case 1 :    /* mv_left_right */
+                        {
+                            union b_mode_info *bmi = &mi->bmi[0];
+                            MV *mv = &bmi->mv.as_mv;
+
+                            x1 = x0 + 4 + (mv->col >> 3);
+                            y1 = y0 + 8 + (mv->row >> 3);
+
+                            constrain_line (x0+4, &x1, y0+8, &y1, width, height);
+                            vp8_blit_line  (x0+4,  x1, y0+8,  y1, y_buffer, y_stride);
+
+                            bmi = &mi->bmi[2];
+
+                            x1 = x0 +12 + (mv->col >> 3);
+                            y1 = y0 + 8 + (mv->row >> 3);
+
+                            constrain_line (x0+12, &x1, y0+8, &y1, width, height);
+                            vp8_blit_line  (x0+12,  x1, y0+8,  y1, y_buffer, y_stride);
+
+                            break;
+                        }
+                        case 2 :    /* mv_quarters   */
+                        {
+                            union b_mode_info *bmi = &mi->bmi[0];
+                            MV *mv = &bmi->mv.as_mv;
+
+                            x1 = x0 + 4 + (mv->col >> 3);
+                            y1 = y0 + 4 + (mv->row >> 3);
+
+                            constrain_line (x0+4, &x1, y0+4, &y1, width, height);
+                            vp8_blit_line  (x0+4,  x1, y0+4,  y1, y_buffer, y_stride);
+
+                            bmi = &mi->bmi[2];
+
+                            x1 = x0 +12 + (mv->col >> 3);
+                            y1 = y0 + 4 + (mv->row >> 3);
+
+                            constrain_line (x0+12, &x1, y0+4, &y1, width, height);
+                            vp8_blit_line  (x0+12,  x1, y0+4,  y1, y_buffer, y_stride);
+
+                            bmi = &mi->bmi[8];
+
+                            x1 = x0 + 4 + (mv->col >> 3);
+                            y1 = y0 +12 + (mv->row >> 3);
+
+                            constrain_line (x0+4, &x1, y0+12, &y1, width, height);
+                            vp8_blit_line  (x0+4,  x1, y0+12,  y1, y_buffer, y_stride);
+
+                            bmi = &mi->bmi[10];
+
+                            x1 = x0 +12 + (mv->col >> 3);
+                            y1 = y0 +12 + (mv->row >> 3);
+
+                            constrain_line (x0+12, &x1, y0+12, &y1, width, height);
+                            vp8_blit_line  (x0+12,  x1, y0+12,  y1, y_buffer, y_stride);
+                            break;
+                        }
+                        default :
+                        {
+                            union b_mode_info *bmi = mi->bmi;
+                            int bx0, by0;
+
+                            for (by0 = y0; by0 < (y0+16); by0 += 4)
+                            {
+                                for (bx0 = x0; bx0 < (x0+16); bx0 += 4)
+                                {
+                                    MV *mv = &bmi->mv.as_mv;
+
+                                    x1 = bx0 + 2 + (mv->col >> 3);
+                                    y1 = by0 + 2 + (mv->row >> 3);
+
+                                    constrain_line (bx0+2, &x1, by0+2, &y1, width, height);
+                                    vp8_blit_line  (bx0+2,  x1, by0+2,  y1, y_buffer, y_stride);
+
+                                    bmi++;
+                                }
+                            }
+                        }
+                    }
+                }
+                else if (mi->mbmi.mode >= NEARESTMV)
+                {
+                    MV *mv = &mi->mbmi.mv.as_mv;
+                    const int lx0 = x0 + 8;
+                    const int ly0 = y0 + 8;
+
+                    x1 = lx0 + (mv->col >> 3);
+                    y1 = ly0 + (mv->row >> 3);
+
+                    if (x1 != lx0 && y1 != ly0)
+                    {
+                        constrain_line (lx0, &x1, ly0-1, &y1, width, height);
+                        vp8_blit_line  (lx0,  x1, ly0-1,  y1, y_buffer, y_stride);
+
+                        constrain_line (lx0, &x1, ly0+1, &y1, width, height);
+                        vp8_blit_line  (lx0,  x1, ly0+1,  y1, y_buffer, y_stride);
+                    }
+                    else
+                        vp8_blit_line  (lx0,  x1, ly0,  y1, y_buffer, y_stride);
+                }
+
+                mi++;
+            }
+            mi++;
+        }
+    }
+
+    /* Color in block modes */
+    if ((flags & VP8D_DEBUG_CLR_BLK_MODES)
+        && (ppflags->display_mb_modes_flag || ppflags->display_b_modes_flag))
+    {
+        int y, x;
+        YV12_BUFFER_CONFIG *post = &oci->post_proc_buffer;
+        int width  = post->y_width;
+        int height = post->y_height;
+        unsigned char *y_ptr = oci->post_proc_buffer.y_buffer;
+        unsigned char *u_ptr = oci->post_proc_buffer.u_buffer;
+        unsigned char *v_ptr = oci->post_proc_buffer.v_buffer;
+        int y_stride = oci->post_proc_buffer.y_stride;
+        MODE_INFO *mi = oci->mi;
+
+        for (y = 0; y < height; y += 16)
+        {
+            for (x = 0; x < width; x += 16)
+            {
+                int Y = 0, U = 0, V = 0;
+
+                if (mi->mbmi.mode == B_PRED &&
+                    ((ppflags->display_mb_modes_flag & B_PRED) || ppflags->display_b_modes_flag))
+                {
+                    int by, bx;
+                    unsigned char *yl, *ul, *vl;
+                    union b_mode_info *bmi = mi->bmi;
+
+                    yl = y_ptr + x;
+                    ul = u_ptr + (x>>1);
+                    vl = v_ptr + (x>>1);
+
+                    for (by = 0; by < 16; by += 4)
+                    {
+                        for (bx = 0; bx < 16; bx += 4)
+                        {
+                            if ((ppflags->display_b_modes_flag & (1<<mi->mbmi.mode))
+                                || (ppflags->display_mb_modes_flag & B_PRED))
+                            {
+                                Y = B_PREDICTION_MODE_colors[bmi->as_mode][0];
+                                U = B_PREDICTION_MODE_colors[bmi->as_mode][1];
+                                V = B_PREDICTION_MODE_colors[bmi->as_mode][2];
+
+                                vp8_blend_b
+                                    (yl+bx, ul+(bx>>1), vl+(bx>>1), Y, U, V, 0xc000, y_stride);
+                            }
+                            bmi++;
+                        }
+
+                        yl += y_stride*4;
+                        ul += y_stride*1;
+                        vl += y_stride*1;
+                    }
+                }
+                else if (ppflags->display_mb_modes_flag & (1<<mi->mbmi.mode))
+                {
+                    Y = MB_PREDICTION_MODE_colors[mi->mbmi.mode][0];
+                    U = MB_PREDICTION_MODE_colors[mi->mbmi.mode][1];
+                    V = MB_PREDICTION_MODE_colors[mi->mbmi.mode][2];
+
+                    vp8_blend_mb_inner
+                        (y_ptr+x, u_ptr+(x>>1), v_ptr+(x>>1), Y, U, V, 0xc000, y_stride);
+                }
+
+                mi++;
+            }
+            y_ptr += y_stride*16;
+            u_ptr += y_stride*4;
+            v_ptr += y_stride*4;
+
+            mi++;
+        }
+    }
+
+    /* Color in frame reference blocks */
+    if ((flags & VP8D_DEBUG_CLR_FRM_REF_BLKS) && ppflags->display_ref_frame_flag)
+    {
+        int y, x;
+        YV12_BUFFER_CONFIG *post = &oci->post_proc_buffer;
+        int width  = post->y_width;
+        int height = post->y_height;
+        unsigned char *y_ptr = oci->post_proc_buffer.y_buffer;
+        unsigned char *u_ptr = oci->post_proc_buffer.u_buffer;
+        unsigned char *v_ptr = oci->post_proc_buffer.v_buffer;
+        int y_stride = oci->post_proc_buffer.y_stride;
+        MODE_INFO *mi = oci->mi;
+
+        for (y = 0; y < height; y += 16)
+        {
+            for (x = 0; x < width; x +=16)
+            {
+                int Y = 0, U = 0, V = 0;
+
+                if (ppflags->display_ref_frame_flag & (1<<mi->mbmi.ref_frame))
+                {
+                    Y = MV_REFERENCE_FRAME_colors[mi->mbmi.ref_frame][0];
+                    U = MV_REFERENCE_FRAME_colors[mi->mbmi.ref_frame][1];
+                    V = MV_REFERENCE_FRAME_colors[mi->mbmi.ref_frame][2];
+
+                    vp8_blend_mb_outer
+                        (y_ptr+x, u_ptr+(x>>1), v_ptr+(x>>1), Y, U, V, 0xc000, y_stride);
+                }
+
+                mi++;
+            }
+            y_ptr += y_stride*16;
+            u_ptr += y_stride*4;
+            v_ptr += y_stride*4;
+
+            mi++;
+        }
+    }
+#endif
+
+    *dest = oci->post_proc_buffer;
+
+    /* handle problem with extending borders */
+    dest->y_width = oci->Width;
+    dest->y_height = oci->Height;
+    dest->uv_height = dest->y_height / 2;
+    return 0;
+}
+#endif
diff --git a/media/libvpx/vp8/common/postproc.h b/media/libvpx/vp8/common/postproc.h
new file mode 100644
index 000000000..0fa12a7c6
--- /dev/null
+++ b/media/libvpx/vp8/common/postproc.h
@@ -0,0 +1,59 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_POSTPROC_H_
+#define VP8_COMMON_POSTPROC_H_
+
+#include "vpx_ports/mem.h"
+struct postproc_state
+{
+    int           last_q;
+    int           last_noise;
+    char          noise[3072];
+    int           last_base_qindex;
+    int           last_frame_valid;
+    DECLARE_ALIGNED(16, char, blackclamp[16]);
+    DECLARE_ALIGNED(16, char, whiteclamp[16]);
+    DECLARE_ALIGNED(16, char, bothclamp[16]);
+};
+#include "onyxc_int.h"
+#include "ppflags.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int vp8_post_proc_frame(struct VP8Common *oci, YV12_BUFFER_CONFIG *dest,
+                        vp8_ppflags_t *flags);
+
+
+void vp8_de_noise(struct VP8Common           *oci,
+                  YV12_BUFFER_CONFIG         *source,
+                  YV12_BUFFER_CONFIG         *post,
+                  int                         q,
+                  int                         low_var_thresh,
+                  int                         flag,
+                  int                         uvfilter);
+
+void vp8_deblock(struct VP8Common           *oci,
+                 YV12_BUFFER_CONFIG         *source,
+                 YV12_BUFFER_CONFIG         *post,
+                 int                         q,
+                 int                         low_var_thresh,
+                 int                         flag);
+
+#define MFQE_PRECISION 4
+
+void vp8_multiframe_quality_enhance(struct VP8Common *cm);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_POSTPROC_H_
diff --git a/media/libvpx/vp8/common/ppflags.h b/media/libvpx/vp8/common/ppflags.h
new file mode 100644
index 000000000..768224aad
--- /dev/null
+++ b/media/libvpx/vp8/common/ppflags.h
@@ -0,0 +1,49 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_PPFLAGS_H_
+#define VP8_COMMON_PPFLAGS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+enum
+{
+    VP8D_NOFILTERING            = 0,
+    VP8D_DEBLOCK                = 1<<0,
+    VP8D_DEMACROBLOCK           = 1<<1,
+    VP8D_ADDNOISE               = 1<<2,
+    VP8D_DEBUG_TXT_FRAME_INFO   = 1<<3,
+    VP8D_DEBUG_TXT_MBLK_MODES   = 1<<4,
+    VP8D_DEBUG_TXT_DC_DIFF      = 1<<5,
+    VP8D_DEBUG_TXT_RATE_INFO    = 1<<6,
+    VP8D_DEBUG_DRAW_MV          = 1<<7,
+    VP8D_DEBUG_CLR_BLK_MODES    = 1<<8,
+    VP8D_DEBUG_CLR_FRM_REF_BLKS = 1<<9,
+    VP8D_MFQE                   = 1<<10
+};
+
+typedef struct
+{
+    int post_proc_flag;
+    int deblocking_level;
+    int noise_level;
+    int display_ref_frame_flag;
+    int display_mb_modes_flag;
+    int display_b_modes_flag;
+    int display_mv_flag;
+} vp8_ppflags_t;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_PPFLAGS_H_
diff --git a/media/libvpx/vp8/common/quant_common.c b/media/libvpx/vp8/common/quant_common.c
new file mode 100644
index 000000000..05f921070
--- /dev/null
+++ b/media/libvpx/vp8/common/quant_common.c
@@ -0,0 +1,135 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "quant_common.h"
+
+static const int dc_qlookup[QINDEX_RANGE] =
+{
+    4,    5,    6,    7,    8,    9,   10,   10,   11,   12,   13,   14,   15,   16,   17,   17,
+    18,   19,   20,   20,   21,   21,   22,   22,   23,   23,   24,   25,   25,   26,   27,   28,
+    29,   30,   31,   32,   33,   34,   35,   36,   37,   37,   38,   39,   40,   41,   42,   43,
+    44,   45,   46,   46,   47,   48,   49,   50,   51,   52,   53,   54,   55,   56,   57,   58,
+    59,   60,   61,   62,   63,   64,   65,   66,   67,   68,   69,   70,   71,   72,   73,   74,
+    75,   76,   76,   77,   78,   79,   80,   81,   82,   83,   84,   85,   86,   87,   88,   89,
+    91,   93,   95,   96,   98,  100,  101,  102,  104,  106,  108,  110,  112,  114,  116,  118,
+    122,  124,  126,  128,  130,  132,  134,  136,  138,  140,  143,  145,  148,  151,  154,  157,
+};
+
+static const int ac_qlookup[QINDEX_RANGE] =
+{
+    4,    5,    6,    7,    8,    9,   10,   11,   12,   13,   14,   15,   16,   17,   18,   19,
+    20,   21,   22,   23,   24,   25,   26,   27,   28,   29,   30,   31,   32,   33,   34,   35,
+    36,   37,   38,   39,   40,   41,   42,   43,   44,   45,   46,   47,   48,   49,   50,   51,
+    52,   53,   54,   55,   56,   57,   58,   60,   62,   64,   66,   68,   70,   72,   74,   76,
+    78,   80,   82,   84,   86,   88,   90,   92,   94,   96,   98,  100,  102,  104,  106,  108,
+    110,  112,  114,  116,  119,  122,  125,  128,  131,  134,  137,  140,  143,  146,  149,  152,
+    155,  158,  161,  164,  167,  170,  173,  177,  181,  185,  189,  193,  197,  201,  205,  209,
+    213,  217,  221,  225,  229,  234,  239,  245,  249,  254,  259,  264,  269,  274,  279,  284,
+};
+
+
+int vp8_dc_quant(int QIndex, int Delta)
+{
+    int retval;
+
+    QIndex = QIndex + Delta;
+
+    if (QIndex > 127)
+        QIndex = 127;
+    else if (QIndex < 0)
+        QIndex = 0;
+
+    retval = dc_qlookup[ QIndex ];
+    return retval;
+}
+
+int vp8_dc2quant(int QIndex, int Delta)
+{
+    int retval;
+
+    QIndex = QIndex + Delta;
+
+    if (QIndex > 127)
+        QIndex = 127;
+    else if (QIndex < 0)
+        QIndex = 0;
+
+    retval = dc_qlookup[ QIndex ] * 2;
+    return retval;
+
+}
+int vp8_dc_uv_quant(int QIndex, int Delta)
+{
+    int retval;
+
+    QIndex = QIndex + Delta;
+
+    if (QIndex > 127)
+        QIndex = 127;
+    else if (QIndex < 0)
+        QIndex = 0;
+
+    retval = dc_qlookup[ QIndex ];
+
+    if (retval > 132)
+        retval = 132;
+
+    return retval;
+}
+
+int vp8_ac_yquant(int QIndex)
+{
+    int retval;
+
+    if (QIndex > 127)
+        QIndex = 127;
+    else if (QIndex < 0)
+        QIndex = 0;
+
+    retval = ac_qlookup[ QIndex ];
+    return retval;
+}
+
+int vp8_ac2quant(int QIndex, int Delta)
+{
+    int retval;
+
+    QIndex = QIndex + Delta;
+
+    if (QIndex > 127)
+        QIndex = 127;
+    else if (QIndex < 0)
+        QIndex = 0;
+
+    /* For all x in [0..284], x*155/100 is bitwise equal to (x*101581) >> 16.
+     * The smallest precision for that is '(x*6349) >> 12' but 16 is a good
+     * word size. */
+    retval = (ac_qlookup[ QIndex ] * 101581) >> 16;
+
+    if (retval < 8)
+        retval = 8;
+
+    return retval;
+}
+int vp8_ac_uv_quant(int QIndex, int Delta)
+{
+    int retval;
+
+    QIndex = QIndex + Delta;
+
+    if (QIndex > 127)
+        QIndex = 127;
+    else if (QIndex < 0)
+        QIndex = 0;
+
+    retval = ac_qlookup[ QIndex ];
+    return retval;
+}
diff --git a/media/libvpx/vp8/common/quant_common.h b/media/libvpx/vp8/common/quant_common.h
new file mode 100644
index 000000000..700b5e6d7
--- /dev/null
+++ b/media/libvpx/vp8/common/quant_common.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_COMMON_QUANT_COMMON_H_
+#define VP8_COMMON_QUANT_COMMON_H_
+
+
+#include "string.h"
+#include "blockd.h"
+#include "onyxc_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int vp8_ac_yquant(int QIndex);
+extern int vp8_dc_quant(int QIndex, int Delta);
+extern int vp8_dc2quant(int QIndex, int Delta);
+extern int vp8_ac2quant(int QIndex, int Delta);
+extern int vp8_dc_uv_quant(int QIndex, int Delta);
+extern int vp8_ac_uv_quant(int QIndex, int Delta);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_QUANT_COMMON_H_
diff --git a/media/libvpx/vp8/common/reconinter.c b/media/libvpx/vp8/common/reconinter.c
new file mode 100644
index 000000000..e30259558
--- /dev/null
+++ b/media/libvpx/vp8/common/reconinter.c
@@ -0,0 +1,544 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <limits.h>
+#include <string.h>
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx/vpx_integer.h"
+#include "blockd.h"
+#include "reconinter.h"
+#if CONFIG_RUNTIME_CPU_DETECT
+#include "onyxc_int.h"
+#endif
+
+void vp8_copy_mem16x16_c(
+    unsigned char *src,
+    int src_stride,
+    unsigned char *dst,
+    int dst_stride)
+{
+
+    int r;
+
+    for (r = 0; r < 16; r++)
+    {
+        memcpy(dst, src, 16);
+
+        src += src_stride;
+        dst += dst_stride;
+
+    }
+
+}
+
+void vp8_copy_mem8x8_c(
+    unsigned char *src,
+    int src_stride,
+    unsigned char *dst,
+    int dst_stride)
+{
+    int r;
+
+    for (r = 0; r < 8; r++)
+    {
+        memcpy(dst, src, 8);
+
+        src += src_stride;
+        dst += dst_stride;
+
+    }
+
+}
+
+void vp8_copy_mem8x4_c(
+    unsigned char *src,
+    int src_stride,
+    unsigned char *dst,
+    int dst_stride)
+{
+    int r;
+
+    for (r = 0; r < 4; r++)
+    {
+        memcpy(dst, src, 8);
+
+        src += src_stride;
+        dst += dst_stride;
+
+    }
+
+}
+
+
+void vp8_build_inter_predictors_b(BLOCKD *d, int pitch, unsigned char *base_pre, int pre_stride, vp8_subpix_fn_t sppf)
+{
+    int r;
+    unsigned char *pred_ptr = d->predictor;
+    unsigned char *ptr;
+    ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + (d->bmi.mv.as_mv.col >> 3);
+
+    if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7)
+    {
+        sppf(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, d->bmi.mv.as_mv.row & 7, pred_ptr, pitch);
+    }
+    else
+    {
+        for (r = 0; r < 4; r++)
+        {
+            pred_ptr[0]  = ptr[0];
+            pred_ptr[1]  = ptr[1];
+            pred_ptr[2]  = ptr[2];
+            pred_ptr[3]  = ptr[3];
+            pred_ptr     += pitch;
+            ptr         += pre_stride;
+        }
+    }
+}
+
+static void build_inter_predictors4b(MACROBLOCKD *x, BLOCKD *d, unsigned char *dst, int dst_stride, unsigned char *base_pre, int pre_stride)
+{
+    unsigned char *ptr;
+    ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + (d->bmi.mv.as_mv.col >> 3);
+
+    if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7)
+    {
+        x->subpixel_predict8x8(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, d->bmi.mv.as_mv.row & 7, dst, dst_stride);
+    }
+    else
+    {
+        vp8_copy_mem8x8(ptr, pre_stride, dst, dst_stride);
+    }
+}
+
+static void build_inter_predictors2b(MACROBLOCKD *x, BLOCKD *d, unsigned char *dst, int dst_stride, unsigned char *base_pre, int pre_stride)
+{
+    unsigned char *ptr;
+    ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + (d->bmi.mv.as_mv.col >> 3);
+
+    if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7)
+    {
+        x->subpixel_predict8x4(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, d->bmi.mv.as_mv.row & 7, dst, dst_stride);
+    }
+    else
+    {
+        vp8_copy_mem8x4(ptr, pre_stride, dst, dst_stride);
+    }
+}
+
+static void build_inter_predictors_b(BLOCKD *d, unsigned char *dst, int dst_stride, unsigned char *base_pre, int pre_stride, vp8_subpix_fn_t sppf)
+{
+    int r;
+    unsigned char *ptr;
+    ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + (d->bmi.mv.as_mv.col >> 3);
+
+    if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7)
+    {
+        sppf(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, d->bmi.mv.as_mv.row & 7, dst, dst_stride);
+    }
+    else
+    {
+        for (r = 0; r < 4; r++)
+        {
+          dst[0]  = ptr[0];
+          dst[1]  = ptr[1];
+          dst[2]  = ptr[2];
+          dst[3]  = ptr[3];
+          dst     += dst_stride;
+          ptr     += pre_stride;
+        }
+    }
+}
+
+
+/*encoder only*/
+void vp8_build_inter16x16_predictors_mbuv(MACROBLOCKD *x)
+{
+    unsigned char *uptr, *vptr;
+    unsigned char *upred_ptr = &x->predictor[256];
+    unsigned char *vpred_ptr = &x->predictor[320];
+
+    int mv_row = x->mode_info_context->mbmi.mv.as_mv.row;
+    int mv_col = x->mode_info_context->mbmi.mv.as_mv.col;
+    int offset;
+    int pre_stride = x->pre.uv_stride;
+
+    /* calc uv motion vectors */
+    mv_row += 1 | (mv_row >> (sizeof(int) * CHAR_BIT - 1));
+    mv_col += 1 | (mv_col >> (sizeof(int) * CHAR_BIT - 1));
+    mv_row /= 2;
+    mv_col /= 2;
+    mv_row &= x->fullpixel_mask;
+    mv_col &= x->fullpixel_mask;
+
+    offset = (mv_row >> 3) * pre_stride + (mv_col >> 3);
+    uptr = x->pre.u_buffer + offset;
+    vptr = x->pre.v_buffer + offset;
+
+    if ((mv_row | mv_col) & 7)
+    {
+        x->subpixel_predict8x8(uptr, pre_stride, mv_col & 7, mv_row & 7, upred_ptr, 8);
+        x->subpixel_predict8x8(vptr, pre_stride, mv_col & 7, mv_row & 7, vpred_ptr, 8);
+    }
+    else
+    {
+        vp8_copy_mem8x8(uptr, pre_stride, upred_ptr, 8);
+        vp8_copy_mem8x8(vptr, pre_stride, vpred_ptr, 8);
+    }
+}
+
+/*encoder only*/
+void vp8_build_inter4x4_predictors_mbuv(MACROBLOCKD *x)
+{
+    int i, j;
+    int pre_stride = x->pre.uv_stride;
+    unsigned char *base_pre;
+
+    /* build uv mvs */
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 2; j++)
+        {
+            int yoffset = i * 8 + j * 2;
+            int uoffset = 16 + i * 2 + j;
+            int voffset = 20 + i * 2 + j;
+
+            int temp;
+
+            temp = x->block[yoffset  ].bmi.mv.as_mv.row
+                   + x->block[yoffset+1].bmi.mv.as_mv.row
+                   + x->block[yoffset+4].bmi.mv.as_mv.row
+                   + x->block[yoffset+5].bmi.mv.as_mv.row;
+
+            temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8);
+
+            x->block[uoffset].bmi.mv.as_mv.row = (temp / 8) & x->fullpixel_mask;
+
+            temp = x->block[yoffset  ].bmi.mv.as_mv.col
+                   + x->block[yoffset+1].bmi.mv.as_mv.col
+                   + x->block[yoffset+4].bmi.mv.as_mv.col
+                   + x->block[yoffset+5].bmi.mv.as_mv.col;
+
+            temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8);
+
+            x->block[uoffset].bmi.mv.as_mv.col = (temp / 8) & x->fullpixel_mask;
+
+            x->block[voffset].bmi.mv.as_int = x->block[uoffset].bmi.mv.as_int;
+        }
+    }
+
+    base_pre = x->pre.u_buffer;
+    for (i = 16; i < 20; i += 2)
+    {
+        BLOCKD *d0 = &x->block[i];
+        BLOCKD *d1 = &x->block[i+1];
+
+        if (d0->bmi.mv.as_int == d1->bmi.mv.as_int)
+            build_inter_predictors2b(x, d0, d0->predictor, 8, base_pre, pre_stride);
+        else
+        {
+            vp8_build_inter_predictors_b(d0, 8, base_pre, pre_stride, x->subpixel_predict);
+            vp8_build_inter_predictors_b(d1, 8, base_pre, pre_stride, x->subpixel_predict);
+        }
+    }
+
+    base_pre = x->pre.v_buffer;
+    for (i = 20; i < 24; i += 2)
+    {
+        BLOCKD *d0 = &x->block[i];
+        BLOCKD *d1 = &x->block[i+1];
+
+        if (d0->bmi.mv.as_int == d1->bmi.mv.as_int)
+            build_inter_predictors2b(x, d0, d0->predictor, 8, base_pre, pre_stride);
+        else
+        {
+            vp8_build_inter_predictors_b(d0, 8, base_pre, pre_stride, x->subpixel_predict);
+            vp8_build_inter_predictors_b(d1, 8, base_pre, pre_stride, x->subpixel_predict);
+        }
+    }
+}
+
+
+/*encoder only*/
+void vp8_build_inter16x16_predictors_mby(MACROBLOCKD *x,
+                                         unsigned char *dst_y,
+                                         int dst_ystride)
+{
+    unsigned char *ptr_base;
+    unsigned char *ptr;
+    int mv_row = x->mode_info_context->mbmi.mv.as_mv.row;
+    int mv_col = x->mode_info_context->mbmi.mv.as_mv.col;
+    int pre_stride = x->pre.y_stride;
+
+    ptr_base = x->pre.y_buffer;
+    ptr = ptr_base + (mv_row >> 3) * pre_stride + (mv_col >> 3);
+
+    if ((mv_row | mv_col) & 7)
+    {
+        x->subpixel_predict16x16(ptr, pre_stride, mv_col & 7, mv_row & 7,
+                                 dst_y, dst_ystride);
+    }
+    else
+    {
+        vp8_copy_mem16x16(ptr, pre_stride, dst_y,
+            dst_ystride);
+    }
+}
+
+static void clamp_mv_to_umv_border(MV *mv, const MACROBLOCKD *xd)
+{
+    /* If the MV points so far into the UMV border that no visible pixels
+     * are used for reconstruction, the subpel part of the MV can be
+     * discarded and the MV limited to 16 pixels with equivalent results.
+     *
+     * This limit kicks in at 19 pixels for the top and left edges, for
+     * the 16 pixels plus 3 taps right of the central pixel when subpel
+     * filtering. The bottom and right edges use 16 pixels plus 2 pixels
+     * left of the central pixel when filtering.
+     */
+    if (mv->col < (xd->mb_to_left_edge - (19 << 3)))
+        mv->col = xd->mb_to_left_edge - (16 << 3);
+    else if (mv->col > xd->mb_to_right_edge + (18 << 3))
+        mv->col = xd->mb_to_right_edge + (16 << 3);
+
+    if (mv->row < (xd->mb_to_top_edge - (19 << 3)))
+        mv->row = xd->mb_to_top_edge - (16 << 3);
+    else if (mv->row > xd->mb_to_bottom_edge + (18 << 3))
+        mv->row = xd->mb_to_bottom_edge + (16 << 3);
+}
+
+/* A version of the above function for chroma block MVs.*/
+static void clamp_uvmv_to_umv_border(MV *mv, const MACROBLOCKD *xd)
+{
+    mv->col = (2*mv->col < (xd->mb_to_left_edge - (19 << 3))) ?
+        (xd->mb_to_left_edge - (16 << 3)) >> 1 : mv->col;
+    mv->col = (2*mv->col > xd->mb_to_right_edge + (18 << 3)) ?
+        (xd->mb_to_right_edge + (16 << 3)) >> 1 : mv->col;
+
+    mv->row = (2*mv->row < (xd->mb_to_top_edge - (19 << 3))) ?
+        (xd->mb_to_top_edge - (16 << 3)) >> 1 : mv->row;
+    mv->row = (2*mv->row > xd->mb_to_bottom_edge + (18 << 3)) ?
+        (xd->mb_to_bottom_edge + (16 << 3)) >> 1 : mv->row;
+}
+
+void vp8_build_inter16x16_predictors_mb(MACROBLOCKD *x,
+                                        unsigned char *dst_y,
+                                        unsigned char *dst_u,
+                                        unsigned char *dst_v,
+                                        int dst_ystride,
+                                        int dst_uvstride)
+{
+    int offset;
+    unsigned char *ptr;
+    unsigned char *uptr, *vptr;
+
+    int_mv _16x16mv;
+
+    unsigned char *ptr_base = x->pre.y_buffer;
+    int pre_stride = x->pre.y_stride;
+
+    _16x16mv.as_int = x->mode_info_context->mbmi.mv.as_int;
+
+    if (x->mode_info_context->mbmi.need_to_clamp_mvs)
+    {
+        clamp_mv_to_umv_border(&_16x16mv.as_mv, x);
+    }
+
+    ptr = ptr_base + ( _16x16mv.as_mv.row >> 3) * pre_stride + (_16x16mv.as_mv.col >> 3);
+
+    if ( _16x16mv.as_int & 0x00070007)
+    {
+        x->subpixel_predict16x16(ptr, pre_stride, _16x16mv.as_mv.col & 7,  _16x16mv.as_mv.row & 7, dst_y, dst_ystride);
+    }
+    else
+    {
+        vp8_copy_mem16x16(ptr, pre_stride, dst_y, dst_ystride);
+    }
+
+    /* calc uv motion vectors */
+    _16x16mv.as_mv.row += 1 | (_16x16mv.as_mv.row >> (sizeof(int) * CHAR_BIT - 1));
+    _16x16mv.as_mv.col += 1 | (_16x16mv.as_mv.col >> (sizeof(int) * CHAR_BIT - 1));
+    _16x16mv.as_mv.row /= 2;
+    _16x16mv.as_mv.col /= 2;
+    _16x16mv.as_mv.row &= x->fullpixel_mask;
+    _16x16mv.as_mv.col &= x->fullpixel_mask;
+
+    pre_stride >>= 1;
+    offset = ( _16x16mv.as_mv.row >> 3) * pre_stride + (_16x16mv.as_mv.col >> 3);
+    uptr = x->pre.u_buffer + offset;
+    vptr = x->pre.v_buffer + offset;
+
+    if ( _16x16mv.as_int & 0x00070007)
+    {
+        x->subpixel_predict8x8(uptr, pre_stride, _16x16mv.as_mv.col & 7,  _16x16mv.as_mv.row & 7, dst_u, dst_uvstride);
+        x->subpixel_predict8x8(vptr, pre_stride, _16x16mv.as_mv.col & 7,  _16x16mv.as_mv.row & 7, dst_v, dst_uvstride);
+    }
+    else
+    {
+        vp8_copy_mem8x8(uptr, pre_stride, dst_u, dst_uvstride);
+        vp8_copy_mem8x8(vptr, pre_stride, dst_v, dst_uvstride);
+    }
+}
+
+static void build_inter4x4_predictors_mb(MACROBLOCKD *x)
+{
+    int i;
+    unsigned char *base_dst = x->dst.y_buffer;
+    unsigned char *base_pre = x->pre.y_buffer;
+
+    if (x->mode_info_context->mbmi.partitioning < 3)
+    {
+        BLOCKD *b;
+        int dst_stride = x->dst.y_stride;
+
+        x->block[ 0].bmi = x->mode_info_context->bmi[ 0];
+        x->block[ 2].bmi = x->mode_info_context->bmi[ 2];
+        x->block[ 8].bmi = x->mode_info_context->bmi[ 8];
+        x->block[10].bmi = x->mode_info_context->bmi[10];
+        if (x->mode_info_context->mbmi.need_to_clamp_mvs)
+        {
+            clamp_mv_to_umv_border(&x->block[ 0].bmi.mv.as_mv, x);
+            clamp_mv_to_umv_border(&x->block[ 2].bmi.mv.as_mv, x);
+            clamp_mv_to_umv_border(&x->block[ 8].bmi.mv.as_mv, x);
+            clamp_mv_to_umv_border(&x->block[10].bmi.mv.as_mv, x);
+        }
+
+        b = &x->block[ 0];
+        build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, dst_stride);
+        b = &x->block[ 2];
+        build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, dst_stride);
+        b = &x->block[ 8];
+        build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, dst_stride);
+        b = &x->block[10];
+        build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, dst_stride);
+    }
+    else
+    {
+        for (i = 0; i < 16; i += 2)
+        {
+            BLOCKD *d0 = &x->block[i];
+            BLOCKD *d1 = &x->block[i+1];
+            int dst_stride = x->dst.y_stride;
+
+            x->block[i+0].bmi = x->mode_info_context->bmi[i+0];
+            x->block[i+1].bmi = x->mode_info_context->bmi[i+1];
+            if (x->mode_info_context->mbmi.need_to_clamp_mvs)
+            {
+                clamp_mv_to_umv_border(&x->block[i+0].bmi.mv.as_mv, x);
+                clamp_mv_to_umv_border(&x->block[i+1].bmi.mv.as_mv, x);
+            }
+
+            if (d0->bmi.mv.as_int == d1->bmi.mv.as_int)
+                build_inter_predictors2b(x, d0, base_dst + d0->offset, dst_stride, base_pre, dst_stride);
+            else
+            {
+                build_inter_predictors_b(d0, base_dst + d0->offset, dst_stride, base_pre, dst_stride, x->subpixel_predict);
+                build_inter_predictors_b(d1, base_dst + d1->offset, dst_stride, base_pre, dst_stride, x->subpixel_predict);
+            }
+
+        }
+
+    }
+    base_dst = x->dst.u_buffer;
+    base_pre = x->pre.u_buffer;
+    for (i = 16; i < 20; i += 2)
+    {
+        BLOCKD *d0 = &x->block[i];
+        BLOCKD *d1 = &x->block[i+1];
+        int dst_stride = x->dst.uv_stride;
+
+        /* Note: uv mvs already clamped in build_4x4uvmvs() */
+
+        if (d0->bmi.mv.as_int == d1->bmi.mv.as_int)
+            build_inter_predictors2b(x, d0, base_dst + d0->offset, dst_stride, base_pre, dst_stride);
+        else
+        {
+            build_inter_predictors_b(d0, base_dst + d0->offset, dst_stride, base_pre, dst_stride, x->subpixel_predict);
+            build_inter_predictors_b(d1, base_dst + d1->offset, dst_stride, base_pre, dst_stride, x->subpixel_predict);
+        }
+    }
+
+    base_dst = x->dst.v_buffer;
+    base_pre = x->pre.v_buffer;
+    for (i = 20; i < 24; i += 2)
+    {
+        BLOCKD *d0 = &x->block[i];
+        BLOCKD *d1 = &x->block[i+1];
+        int dst_stride = x->dst.uv_stride;
+
+        /* Note: uv mvs already clamped in build_4x4uvmvs() */
+
+        if (d0->bmi.mv.as_int == d1->bmi.mv.as_int)
+            build_inter_predictors2b(x, d0, base_dst + d0->offset, dst_stride, base_pre, dst_stride);
+        else
+        {
+            build_inter_predictors_b(d0, base_dst + d0->offset, dst_stride, base_pre, dst_stride, x->subpixel_predict);
+            build_inter_predictors_b(d1, base_dst + d1->offset, dst_stride, base_pre, dst_stride, x->subpixel_predict);
+        }
+    }
+}
+
+static
+void build_4x4uvmvs(MACROBLOCKD *x)
+{
+    int i, j;
+
+    for (i = 0; i < 2; i++)
+    {
+        for (j = 0; j < 2; j++)
+        {
+            int yoffset = i * 8 + j * 2;
+            int uoffset = 16 + i * 2 + j;
+            int voffset = 20 + i * 2 + j;
+
+            int temp;
+
+            temp = x->mode_info_context->bmi[yoffset + 0].mv.as_mv.row
+                 + x->mode_info_context->bmi[yoffset + 1].mv.as_mv.row
+                 + x->mode_info_context->bmi[yoffset + 4].mv.as_mv.row
+                 + x->mode_info_context->bmi[yoffset + 5].mv.as_mv.row;
+
+            temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8);
+
+            x->block[uoffset].bmi.mv.as_mv.row = (temp / 8) & x->fullpixel_mask;
+
+            temp = x->mode_info_context->bmi[yoffset + 0].mv.as_mv.col
+                 + x->mode_info_context->bmi[yoffset + 1].mv.as_mv.col
+                 + x->mode_info_context->bmi[yoffset + 4].mv.as_mv.col
+                 + x->mode_info_context->bmi[yoffset + 5].mv.as_mv.col;
+
+            temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8);
+
+            x->block[uoffset].bmi.mv.as_mv.col = (temp / 8) & x->fullpixel_mask;
+
+            if (x->mode_info_context->mbmi.need_to_clamp_mvs)
+                clamp_uvmv_to_umv_border(&x->block[uoffset].bmi.mv.as_mv, x);
+
+            x->block[voffset].bmi.mv.as_int = x->block[uoffset].bmi.mv.as_int;
+        }
+    }
+}
+
+void vp8_build_inter_predictors_mb(MACROBLOCKD *xd)
+{
+    if (xd->mode_info_context->mbmi.mode != SPLITMV)
+    {
+        vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer,
+                                           xd->dst.u_buffer, xd->dst.v_buffer,
+                                           xd->dst.y_stride, xd->dst.uv_stride);
+    }
+    else
+    {
+        build_4x4uvmvs(xd);
+        build_inter4x4_predictors_mb(xd);
+    }
+}
diff --git a/media/libvpx/vp8/common/reconinter.h b/media/libvpx/vp8/common/reconinter.h
new file mode 100644
index 000000000..ba979b966
--- /dev/null
+++ b/media/libvpx/vp8/common/reconinter.h
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_RECONINTER_H_
+#define VP8_COMMON_RECONINTER_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_build_inter_predictors_mb(MACROBLOCKD *x);
+extern void vp8_build_inter16x16_predictors_mb(MACROBLOCKD *x,
+                                               unsigned char *dst_y,
+                                               unsigned char *dst_u,
+                                               unsigned char *dst_v,
+                                               int dst_ystride,
+                                               int dst_uvstride);
+
+
+extern void vp8_build_inter16x16_predictors_mby(MACROBLOCKD *x,
+                                                unsigned char *dst_y,
+                                                int dst_ystride);
+extern void vp8_build_inter_predictors_b(BLOCKD *d, int pitch,
+                                         unsigned char *base_pre,
+                                         int pre_stride,
+                                         vp8_subpix_fn_t sppf);
+
+extern void vp8_build_inter16x16_predictors_mbuv(MACROBLOCKD *x);
+extern void vp8_build_inter4x4_predictors_mbuv(MACROBLOCKD *x);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_RECONINTER_H_
diff --git a/media/libvpx/vp8/common/reconintra.c b/media/libvpx/vp8/common/reconintra.c
new file mode 100644
index 000000000..0a6c51b35
--- /dev/null
+++ b/media/libvpx/vp8/common/reconintra.c
@@ -0,0 +1,280 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_mem/vpx_mem.h"
+#include "blockd.h"
+
+void vp8_build_intra_predictors_mby_s_c(MACROBLOCKD *x,
+                                          unsigned char * yabove_row,
+                                          unsigned char * yleft,
+                                          int left_stride,
+                                          unsigned char * ypred_ptr,
+                                          int y_stride)
+{
+    unsigned char yleft_col[16];
+    unsigned char ytop_left = yabove_row[-1];
+    int r, c, i;
+
+    for (i = 0; i < 16; i++)
+    {
+        yleft_col[i] = yleft[i* left_stride];
+    }
+
+    /* for Y */
+    switch (x->mode_info_context->mbmi.mode)
+    {
+    case DC_PRED:
+    {
+        int expected_dc;
+        int shift;
+        int average = 0;
+
+
+        if (x->up_available || x->left_available)
+        {
+            if (x->up_available)
+            {
+                for (i = 0; i < 16; i++)
+                {
+                    average += yabove_row[i];
+                }
+            }
+
+            if (x->left_available)
+            {
+
+                for (i = 0; i < 16; i++)
+                {
+                    average += yleft_col[i];
+                }
+
+            }
+
+
+
+            shift = 3 + x->up_available + x->left_available;
+            expected_dc = (average + (1 << (shift - 1))) >> shift;
+        }
+        else
+        {
+            expected_dc = 128;
+        }
+
+        /*memset(ypred_ptr, expected_dc, 256);*/
+        for (r = 0; r < 16; r++)
+        {
+            memset(ypred_ptr, expected_dc, 16);
+            ypred_ptr += y_stride;
+        }
+    }
+    break;
+    case V_PRED:
+    {
+
+        for (r = 0; r < 16; r++)
+        {
+
+            ((int *)ypred_ptr)[0] = ((int *)yabove_row)[0];
+            ((int *)ypred_ptr)[1] = ((int *)yabove_row)[1];
+            ((int *)ypred_ptr)[2] = ((int *)yabove_row)[2];
+            ((int *)ypred_ptr)[3] = ((int *)yabove_row)[3];
+            ypred_ptr += y_stride;
+        }
+    }
+    break;
+    case H_PRED:
+    {
+
+        for (r = 0; r < 16; r++)
+        {
+
+            memset(ypred_ptr, yleft_col[r], 16);
+            ypred_ptr += y_stride;
+        }
+
+    }
+    break;
+    case TM_PRED:
+    {
+
+        for (r = 0; r < 16; r++)
+        {
+            for (c = 0; c < 16; c++)
+            {
+                int pred =  yleft_col[r] + yabove_row[ c] - ytop_left;
+
+                if (pred < 0)
+                    pred = 0;
+
+                if (pred > 255)
+                    pred = 255;
+
+                ypred_ptr[c] = pred;
+            }
+
+            ypred_ptr += y_stride;
+        }
+
+    }
+    break;
+    case B_PRED:
+    case NEARESTMV:
+    case NEARMV:
+    case ZEROMV:
+    case NEWMV:
+    case SPLITMV:
+    case MB_MODE_COUNT:
+        break;
+    }
+}
+
+void vp8_build_intra_predictors_mbuv_s_c(MACROBLOCKD *x,
+                                         unsigned char * uabove_row,
+                                         unsigned char * vabove_row,
+                                         unsigned char * uleft,
+                                         unsigned char * vleft,
+                                         int left_stride,
+                                         unsigned char * upred_ptr,
+                                         unsigned char * vpred_ptr,
+                                         int pred_stride)
+{
+    unsigned char uleft_col[8];
+    unsigned char utop_left = uabove_row[-1];
+    unsigned char vleft_col[8];
+    unsigned char vtop_left = vabove_row[-1];
+
+    int i, j;
+
+    for (i = 0; i < 8; i++)
+    {
+        uleft_col[i] = uleft [i* left_stride];
+        vleft_col[i] = vleft [i* left_stride];
+    }
+
+    switch (x->mode_info_context->mbmi.uv_mode)
+    {
+    case DC_PRED:
+    {
+        int expected_udc;
+        int expected_vdc;
+        int shift;
+        int Uaverage = 0;
+        int Vaverage = 0;
+
+        if (x->up_available)
+        {
+            for (i = 0; i < 8; i++)
+            {
+                Uaverage += uabove_row[i];
+                Vaverage += vabove_row[i];
+            }
+        }
+
+        if (x->left_available)
+        {
+            for (i = 0; i < 8; i++)
+            {
+                Uaverage += uleft_col[i];
+                Vaverage += vleft_col[i];
+            }
+        }
+
+        if (!x->up_available && !x->left_available)
+        {
+            expected_udc = 128;
+            expected_vdc = 128;
+        }
+        else
+        {
+            shift = 2 + x->up_available + x->left_available;
+            expected_udc = (Uaverage + (1 << (shift - 1))) >> shift;
+            expected_vdc = (Vaverage + (1 << (shift - 1))) >> shift;
+        }
+
+
+        /*memset(upred_ptr,expected_udc,64);*/
+        /*memset(vpred_ptr,expected_vdc,64);*/
+        for (i = 0; i < 8; i++)
+        {
+            memset(upred_ptr, expected_udc, 8);
+            memset(vpred_ptr, expected_vdc, 8);
+            upred_ptr += pred_stride;
+            vpred_ptr += pred_stride;
+        }
+    }
+    break;
+    case V_PRED:
+    {
+        for (i = 0; i < 8; i++)
+        {
+            memcpy(upred_ptr, uabove_row, 8);
+            memcpy(vpred_ptr, vabove_row, 8);
+            upred_ptr += pred_stride;
+            vpred_ptr += pred_stride;
+        }
+
+    }
+    break;
+    case H_PRED:
+    {
+        for (i = 0; i < 8; i++)
+        {
+            memset(upred_ptr, uleft_col[i], 8);
+            memset(vpred_ptr, vleft_col[i], 8);
+            upred_ptr += pred_stride;
+            vpred_ptr += pred_stride;
+        }
+    }
+
+    break;
+    case TM_PRED:
+    {
+        for (i = 0; i < 8; i++)
+        {
+            for (j = 0; j < 8; j++)
+            {
+                int predu = uleft_col[i] + uabove_row[j] - utop_left;
+                int predv = vleft_col[i] + vabove_row[j] - vtop_left;
+
+                if (predu < 0)
+                    predu = 0;
+
+                if (predu > 255)
+                    predu = 255;
+
+                if (predv < 0)
+                    predv = 0;
+
+                if (predv > 255)
+                    predv = 255;
+
+                upred_ptr[j] = predu;
+                vpred_ptr[j] = predv;
+            }
+
+            upred_ptr += pred_stride;
+            vpred_ptr += pred_stride;
+        }
+
+    }
+    break;
+    case B_PRED:
+    case NEARESTMV:
+    case NEARMV:
+    case ZEROMV:
+    case NEWMV:
+    case SPLITMV:
+    case MB_MODE_COUNT:
+        break;
+    }
+}
diff --git a/media/libvpx/vp8/common/reconintra4x4.c b/media/libvpx/vp8/common/reconintra4x4.c
new file mode 100644
index 000000000..3d4f2c404
--- /dev/null
+++ b/media/libvpx/vp8/common/reconintra4x4.c
@@ -0,0 +1,297 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "blockd.h"
+
+void vp8_intra4x4_predict_c(unsigned char *Above,
+                            unsigned char *yleft, int left_stride,
+                            int           _b_mode,
+                            unsigned char *dst, int dst_stride,
+                            unsigned char top_left)
+{
+    int i, r, c;
+    B_PREDICTION_MODE b_mode = (B_PREDICTION_MODE)_b_mode;
+    unsigned char Left[4];
+    Left[0] = yleft[0];
+    Left[1] = yleft[left_stride];
+    Left[2] = yleft[2 * left_stride];
+    Left[3] = yleft[3 * left_stride];
+
+    switch (b_mode)
+    {
+    case B_DC_PRED:
+    {
+        int expected_dc = 0;
+
+        for (i = 0; i < 4; i++)
+        {
+            expected_dc += Above[i];
+            expected_dc += Left[i];
+        }
+
+        expected_dc = (expected_dc + 4) >> 3;
+
+        for (r = 0; r < 4; r++)
+        {
+            for (c = 0; c < 4; c++)
+            {
+                dst[c] = expected_dc;
+            }
+
+            dst += dst_stride;
+        }
+    }
+    break;
+    case B_TM_PRED:
+    {
+        /* prediction similar to true_motion prediction */
+        for (r = 0; r < 4; r++)
+        {
+            for (c = 0; c < 4; c++)
+            {
+                int pred = Above[c] - top_left + Left[r];
+
+                if (pred < 0)
+                    pred = 0;
+
+                if (pred > 255)
+                    pred = 255;
+
+                dst[c] = pred;
+            }
+
+            dst += dst_stride;
+        }
+    }
+    break;
+
+    case B_VE_PRED:
+    {
+
+        unsigned int ap[4];
+        ap[0] = (top_left  + 2 * Above[0] + Above[1] + 2) >> 2;
+        ap[1] = (Above[0] + 2 * Above[1] + Above[2] + 2) >> 2;
+        ap[2] = (Above[1] + 2 * Above[2] + Above[3] + 2) >> 2;
+        ap[3] = (Above[2] + 2 * Above[3] + Above[4] + 2) >> 2;
+
+        for (r = 0; r < 4; r++)
+        {
+            for (c = 0; c < 4; c++)
+            {
+
+                dst[c] = ap[c];
+            }
+
+            dst += dst_stride;
+        }
+
+    }
+    break;
+
+
+    case B_HE_PRED:
+    {
+
+        unsigned int lp[4];
+        lp[0] = (top_left + 2 * Left[0] + Left[1] + 2) >> 2;
+        lp[1] = (Left[0] + 2 * Left[1] + Left[2] + 2) >> 2;
+        lp[2] = (Left[1] + 2 * Left[2] + Left[3] + 2) >> 2;
+        lp[3] = (Left[2] + 2 * Left[3] + Left[3] + 2) >> 2;
+
+        for (r = 0; r < 4; r++)
+        {
+            for (c = 0; c < 4; c++)
+            {
+                dst[c] = lp[r];
+            }
+
+            dst += dst_stride;
+        }
+    }
+    break;
+    case B_LD_PRED:
+    {
+        unsigned char *ptr = Above;
+        dst[0 * dst_stride + 0] = (ptr[0] + ptr[1] * 2 + ptr[2] + 2) >> 2;
+        dst[0 * dst_stride + 1] =
+            dst[1 * dst_stride + 0] = (ptr[1] + ptr[2] * 2 + ptr[3] + 2) >> 2;
+        dst[0 * dst_stride + 2] =
+            dst[1 * dst_stride + 1] =
+                dst[2 * dst_stride + 0] = (ptr[2] + ptr[3] * 2 + ptr[4] + 2) >> 2;
+        dst[0 * dst_stride + 3] =
+            dst[1 * dst_stride + 2] =
+                dst[2 * dst_stride + 1] =
+                    dst[3 * dst_stride + 0] = (ptr[3] + ptr[4] * 2 + ptr[5] + 2) >> 2;
+        dst[1 * dst_stride + 3] =
+            dst[2 * dst_stride + 2] =
+                dst[3 * dst_stride + 1] = (ptr[4] + ptr[5] * 2 + ptr[6] + 2) >> 2;
+        dst[2 * dst_stride + 3] =
+            dst[3 * dst_stride + 2] = (ptr[5] + ptr[6] * 2 + ptr[7] + 2) >> 2;
+        dst[3 * dst_stride + 3] = (ptr[6] + ptr[7] * 2 + ptr[7] + 2) >> 2;
+
+    }
+    break;
+    case B_RD_PRED:
+    {
+
+        unsigned char pp[9];
+
+        pp[0] = Left[3];
+        pp[1] = Left[2];
+        pp[2] = Left[1];
+        pp[3] = Left[0];
+        pp[4] = top_left;
+        pp[5] = Above[0];
+        pp[6] = Above[1];
+        pp[7] = Above[2];
+        pp[8] = Above[3];
+
+        dst[3 * dst_stride + 0] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
+        dst[3 * dst_stride + 1] =
+            dst[2 * dst_stride + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
+        dst[3 * dst_stride + 2] =
+            dst[2 * dst_stride + 1] =
+                dst[1 * dst_stride + 0] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
+        dst[3 * dst_stride + 3] =
+            dst[2 * dst_stride + 2] =
+                dst[1 * dst_stride + 1] =
+                    dst[0 * dst_stride + 0] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
+        dst[2 * dst_stride + 3] =
+            dst[1 * dst_stride + 2] =
+                dst[0 * dst_stride + 1] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
+        dst[1 * dst_stride + 3] =
+            dst[0 * dst_stride + 2] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
+        dst[0 * dst_stride + 3] = (pp[6] + pp[7] * 2 + pp[8] + 2) >> 2;
+
+    }
+    break;
+    case B_VR_PRED:
+    {
+
+        unsigned char pp[9];
+
+        pp[0] = Left[3];
+        pp[1] = Left[2];
+        pp[2] = Left[1];
+        pp[3] = Left[0];
+        pp[4] = top_left;
+        pp[5] = Above[0];
+        pp[6] = Above[1];
+        pp[7] = Above[2];
+        pp[8] = Above[3];
+
+
+        dst[3 * dst_stride + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
+        dst[2 * dst_stride + 0] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
+        dst[3 * dst_stride + 1] =
+            dst[1 * dst_stride + 0] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
+        dst[2 * dst_stride + 1] =
+            dst[0 * dst_stride + 0] = (pp[4] + pp[5] + 1) >> 1;
+        dst[3 * dst_stride + 2] =
+            dst[1 * dst_stride + 1] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
+        dst[2 * dst_stride + 2] =
+            dst[0 * dst_stride + 1] = (pp[5] + pp[6] + 1) >> 1;
+        dst[3 * dst_stride + 3] =
+            dst[1 * dst_stride + 2] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
+        dst[2 * dst_stride + 3] =
+            dst[0 * dst_stride + 2] = (pp[6] + pp[7] + 1) >> 1;
+        dst[1 * dst_stride + 3] = (pp[6] + pp[7] * 2 + pp[8] + 2) >> 2;
+        dst[0 * dst_stride + 3] = (pp[7] + pp[8] + 1) >> 1;
+
+    }
+    break;
+    case B_VL_PRED:
+    {
+
+        unsigned char *pp = Above;
+
+        dst[0 * dst_stride + 0] = (pp[0] + pp[1] + 1) >> 1;
+        dst[1 * dst_stride + 0] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
+        dst[2 * dst_stride + 0] =
+            dst[0 * dst_stride + 1] = (pp[1] + pp[2] + 1) >> 1;
+        dst[1 * dst_stride + 1] =
+            dst[3 * dst_stride + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
+        dst[2 * dst_stride + 1] =
+            dst[0 * dst_stride + 2] = (pp[2] + pp[3] + 1) >> 1;
+        dst[3 * dst_stride + 1] =
+            dst[1 * dst_stride + 2] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
+        dst[0 * dst_stride + 3] =
+            dst[2 * dst_stride + 2] = (pp[3] + pp[4] + 1) >> 1;
+        dst[1 * dst_stride + 3] =
+            dst[3 * dst_stride + 2] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
+        dst[2 * dst_stride + 3] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
+        dst[3 * dst_stride + 3] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
+    }
+    break;
+
+    case B_HD_PRED:
+    {
+        unsigned char pp[9];
+        pp[0] = Left[3];
+        pp[1] = Left[2];
+        pp[2] = Left[1];
+        pp[3] = Left[0];
+        pp[4] = top_left;
+        pp[5] = Above[0];
+        pp[6] = Above[1];
+        pp[7] = Above[2];
+        pp[8] = Above[3];
+
+
+        dst[3 * dst_stride + 0] = (pp[0] + pp[1] + 1) >> 1;
+        dst[3 * dst_stride + 1] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
+        dst[2 * dst_stride + 0] =
+            dst[3 * dst_stride + 2] = (pp[1] + pp[2] + 1) >> 1;
+        dst[2 * dst_stride + 1] =
+            dst[3 * dst_stride + 3] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
+        dst[2 * dst_stride + 2] =
+            dst[1 * dst_stride + 0] = (pp[2] + pp[3] + 1) >> 1;
+        dst[2 * dst_stride + 3] =
+            dst[1 * dst_stride + 1] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
+        dst[1 * dst_stride + 2] =
+            dst[0 * dst_stride + 0] = (pp[3] + pp[4] + 1) >> 1;
+        dst[1 * dst_stride + 3] =
+            dst[0 * dst_stride + 1] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
+        dst[0 * dst_stride + 2] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
+        dst[0 * dst_stride + 3] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
+    }
+    break;
+
+
+    case B_HU_PRED:
+    {
+        unsigned char *pp = Left;
+        dst[0 * dst_stride + 0] = (pp[0] + pp[1] + 1) >> 1;
+        dst[0 * dst_stride + 1] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
+        dst[0 * dst_stride + 2] =
+            dst[1 * dst_stride + 0] = (pp[1] + pp[2] + 1) >> 1;
+        dst[0 * dst_stride + 3] =
+            dst[1 * dst_stride + 1] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
+        dst[1 * dst_stride + 2] =
+            dst[2 * dst_stride + 0] = (pp[2] + pp[3] + 1) >> 1;
+        dst[1 * dst_stride + 3] =
+            dst[2 * dst_stride + 1] = (pp[2] + pp[3] * 2 + pp[3] + 2) >> 2;
+        dst[2 * dst_stride + 2] =
+            dst[2 * dst_stride + 3] =
+                dst[3 * dst_stride + 0] =
+                    dst[3 * dst_stride + 1] =
+                        dst[3 * dst_stride + 2] =
+                            dst[3 * dst_stride + 3] = pp[3];
+    }
+    break;
+
+    default:
+    break;
+
+    }
+}
diff --git a/media/libvpx/vp8/common/reconintra4x4.h b/media/libvpx/vp8/common/reconintra4x4.h
new file mode 100644
index 000000000..ed59c9edd
--- /dev/null
+++ b/media/libvpx/vp8/common/reconintra4x4.h
@@ -0,0 +1,40 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_RECONINTRA4X4_H_
+#define VP8_COMMON_RECONINTRA4X4_H_
+#include "vp8/common/blockd.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static void intra_prediction_down_copy(MACROBLOCKD *xd,
+                                             unsigned char *above_right_src)
+{
+    int dst_stride = xd->dst.y_stride;
+    unsigned char *above_right_dst = xd->dst.y_buffer - dst_stride + 16;
+
+    unsigned int *src_ptr = (unsigned int *)above_right_src;
+    unsigned int *dst_ptr0 = (unsigned int *)(above_right_dst + 4 * dst_stride);
+    unsigned int *dst_ptr1 = (unsigned int *)(above_right_dst + 8 * dst_stride);
+    unsigned int *dst_ptr2 = (unsigned int *)(above_right_dst + 12 * dst_stride);
+
+    *dst_ptr0 = *src_ptr;
+    *dst_ptr1 = *src_ptr;
+    *dst_ptr2 = *src_ptr;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_RECONINTRA4X4_H_
diff --git a/media/libvpx/vp8/common/rtcd.c b/media/libvpx/vp8/common/rtcd.c
new file mode 100644
index 000000000..98c2ecd74
--- /dev/null
+++ b/media/libvpx/vp8/common/rtcd.c
@@ -0,0 +1,22 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "./vpx_config.h"
+#define RTCD_C
+#include "./vp8_rtcd.h"
+#include "vpx_ports/vpx_once.h"
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+
+
+void vp8_rtcd()
+{
+    once(setup_rtcd_internal);
+}
diff --git a/media/libvpx/vp8/common/setupintrarecon.c b/media/libvpx/vp8/common/setupintrarecon.c
new file mode 100644
index 000000000..669564db4
--- /dev/null
+++ b/media/libvpx/vp8/common/setupintrarecon.c
@@ -0,0 +1,39 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "setupintrarecon.h"
+#include "vpx_mem/vpx_mem.h"
+
+void vp8_setup_intra_recon(YV12_BUFFER_CONFIG *ybf)
+{
+    int i;
+
+    /* set up frame new frame for intra coded blocks */
+    memset(ybf->y_buffer - 1 - ybf->y_stride, 127, ybf->y_width + 5);
+    for (i = 0; i < ybf->y_height; i++)
+        ybf->y_buffer[ybf->y_stride *i - 1] = (unsigned char) 129;
+
+    memset(ybf->u_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
+    for (i = 0; i < ybf->uv_height; i++)
+        ybf->u_buffer[ybf->uv_stride *i - 1] = (unsigned char) 129;
+
+    memset(ybf->v_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
+    for (i = 0; i < ybf->uv_height; i++)
+        ybf->v_buffer[ybf->uv_stride *i - 1] = (unsigned char) 129;
+
+}
+
+void vp8_setup_intra_recon_top_line(YV12_BUFFER_CONFIG *ybf)
+{
+    memset(ybf->y_buffer - 1 - ybf->y_stride, 127, ybf->y_width + 5);
+    memset(ybf->u_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
+    memset(ybf->v_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
+}
diff --git a/media/libvpx/vp8/common/setupintrarecon.h b/media/libvpx/vp8/common/setupintrarecon.h
new file mode 100644
index 000000000..608f4a9ac
--- /dev/null
+++ b/media/libvpx/vp8/common/setupintrarecon.h
@@ -0,0 +1,45 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_COMMON_SETUPINTRARECON_H_
+#define VP8_COMMON_SETUPINTRARECON_H_
+
+#include "vpx_scale/yv12config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern void vp8_setup_intra_recon(YV12_BUFFER_CONFIG *ybf);
+extern void vp8_setup_intra_recon_top_line(YV12_BUFFER_CONFIG *ybf);
+
+static
+void setup_intra_recon_left(unsigned char *y_buffer,
+                            unsigned char *u_buffer,
+                            unsigned char *v_buffer,
+                            int y_stride,
+                            int uv_stride)
+{
+    int i;
+
+    for (i = 0; i < 16; i++)
+        y_buffer[y_stride *i] = (unsigned char) 129;
+
+    for (i = 0; i < 8; i++)
+        u_buffer[uv_stride *i] = (unsigned char) 129;
+
+    for (i = 0; i < 8; i++)
+        v_buffer[uv_stride *i] = (unsigned char) 129;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_SETUPINTRARECON_H_
diff --git a/media/libvpx/vp8/common/swapyv12buffer.c b/media/libvpx/vp8/common/swapyv12buffer.c
new file mode 100644
index 000000000..73656b3d7
--- /dev/null
+++ b/media/libvpx/vp8/common/swapyv12buffer.c
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "swapyv12buffer.h"
+
+void vp8_swap_yv12_buffer(YV12_BUFFER_CONFIG *new_frame, YV12_BUFFER_CONFIG *last_frame)
+{
+    unsigned char *temp;
+
+    temp = last_frame->buffer_alloc;
+    last_frame->buffer_alloc = new_frame->buffer_alloc;
+    new_frame->buffer_alloc = temp;
+
+    temp = last_frame->y_buffer;
+    last_frame->y_buffer = new_frame->y_buffer;
+    new_frame->y_buffer = temp;
+
+    temp = last_frame->u_buffer;
+    last_frame->u_buffer = new_frame->u_buffer;
+    new_frame->u_buffer = temp;
+
+    temp = last_frame->v_buffer;
+    last_frame->v_buffer = new_frame->v_buffer;
+    new_frame->v_buffer = temp;
+
+}
diff --git a/media/libvpx/vp8/common/swapyv12buffer.h b/media/libvpx/vp8/common/swapyv12buffer.h
new file mode 100644
index 000000000..1d66cd3d6
--- /dev/null
+++ b/media/libvpx/vp8/common/swapyv12buffer.h
@@ -0,0 +1,27 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_SWAPYV12BUFFER_H_
+#define VP8_COMMON_SWAPYV12BUFFER_H_
+
+#include "vpx_scale/yv12config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_swap_yv12_buffer(YV12_BUFFER_CONFIG *new_frame, YV12_BUFFER_CONFIG *last_frame);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_SWAPYV12BUFFER_H_
diff --git a/media/libvpx/vp8/common/systemdependent.h b/media/libvpx/vp8/common/systemdependent.h
new file mode 100644
index 000000000..3d44e37cf
--- /dev/null
+++ b/media/libvpx/vp8/common/systemdependent.h
@@ -0,0 +1,27 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_COMMON_SYSTEMDEPENDENT_H_
+#define VP8_COMMON_SYSTEMDEPENDENT_H_
+
+#include "vpx_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct VP8Common;
+void vp8_machine_specific_config(struct VP8Common *);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_SYSTEMDEPENDENT_H_
diff --git a/media/libvpx/vp8/common/threading.h b/media/libvpx/vp8/common/threading.h
new file mode 100644
index 000000000..01c82dbb8
--- /dev/null
+++ b/media/libvpx/vp8/common/threading.h
@@ -0,0 +1,194 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_THREADING_H_
+#define VP8_COMMON_THREADING_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD
+
+/* Thread management macros */
+#ifdef _WIN32
+/* Win32 */
+#include <process.h>
+#include <windows.h>
+#define THREAD_FUNCTION DWORD WINAPI
+#define THREAD_FUNCTION_RETURN DWORD
+#define THREAD_SPECIFIC_INDEX DWORD
+#define pthread_t HANDLE
+#define pthread_attr_t DWORD
+#define pthread_create(thhandle,attr,thfunc,tharg) (int)((*thhandle=(HANDLE)_beginthreadex(NULL,0,(unsigned int (__stdcall *)(void *))thfunc,tharg,0,NULL))==NULL)
+#define pthread_join(thread, result) ((WaitForSingleObject((thread),INFINITE)!=WAIT_OBJECT_0) || !CloseHandle(thread))
+#define pthread_detach(thread) if(thread!=NULL)CloseHandle(thread)
+#define thread_sleep(nms) Sleep(nms)
+#define pthread_cancel(thread) terminate_thread(thread,0)
+#define ts_key_create(ts_key, destructor) {ts_key = TlsAlloc();};
+#define pthread_getspecific(ts_key) TlsGetValue(ts_key)
+#define pthread_setspecific(ts_key, value) TlsSetValue(ts_key, (void *)value)
+#define pthread_self() GetCurrentThreadId()
+
+#elif defined(__OS2__)
+/* OS/2 */
+#define INCL_DOS
+#include <os2.h>
+
+#include <stdlib.h>
+#define THREAD_FUNCTION void
+#define THREAD_FUNCTION_RETURN void
+#define THREAD_SPECIFIC_INDEX PULONG
+#define pthread_t TID
+#define pthread_attr_t ULONG
+#define pthread_create(thhandle,attr,thfunc,tharg) \
+    ((int)((*(thhandle)=_beginthread(thfunc,NULL,1024*1024,tharg))==-1))
+#define pthread_join(thread, result) ((int)DosWaitThread(&(thread),0))
+#define pthread_detach(thread) 0
+#define thread_sleep(nms) DosSleep(nms)
+#define pthread_cancel(thread) DosKillThread(thread)
+#define ts_key_create(ts_key, destructor) \
+    DosAllocThreadLocalMemory(1, &(ts_key));
+#define pthread_getspecific(ts_key) ((void *)(*(ts_key)))
+#define pthread_setspecific(ts_key, value) (*(ts_key)=(ULONG)(value))
+#define pthread_self() _gettid()
+#else
+#ifdef __APPLE__
+#include <mach/mach_init.h>
+#include <mach/semaphore.h>
+#include <mach/task.h>
+#include <time.h>
+#include <unistd.h>
+
+#else
+#include <semaphore.h>
+#endif
+
+#include <pthread.h>
+/* pthreads */
+/* Nearly everything is already defined */
+#define THREAD_FUNCTION void *
+#define THREAD_FUNCTION_RETURN void *
+#define THREAD_SPECIFIC_INDEX pthread_key_t
+#define ts_key_create(ts_key, destructor) pthread_key_create (&(ts_key), destructor);
+#endif
+
+/* Syncrhronization macros: Win32 and Pthreads */
+#ifdef _WIN32
+#define sem_t HANDLE
+#define pause(voidpara) __asm PAUSE
+#define sem_init(sem, sem_attr1, sem_init_value) (int)((*sem = CreateSemaphore(NULL,0,32768,NULL))==NULL)
+#define sem_wait(sem) (int)(WAIT_OBJECT_0 != WaitForSingleObject(*sem,INFINITE))
+#define sem_post(sem) ReleaseSemaphore(*sem,1,NULL)
+#define sem_destroy(sem) if(*sem)((int)(CloseHandle(*sem))==TRUE)
+#define thread_sleep(nms) Sleep(nms)
+
+#elif defined(__OS2__)
+typedef struct
+{
+    HEV  event;
+    HMTX wait_mutex;
+    HMTX count_mutex;
+    int  count;
+} sem_t;
+
+static inline int sem_init(sem_t *sem, int pshared, unsigned int value)
+{
+    DosCreateEventSem(NULL, &sem->event, pshared ? DC_SEM_SHARED : 0,
+                      value > 0 ? TRUE : FALSE);
+    DosCreateMutexSem(NULL, &sem->wait_mutex, 0, FALSE);
+    DosCreateMutexSem(NULL, &sem->count_mutex, 0, FALSE);
+
+    sem->count = value;
+
+    return 0;
+}
+
+static inline int sem_wait(sem_t * sem)
+{
+    DosRequestMutexSem(sem->wait_mutex, -1);
+
+    DosWaitEventSem(sem->event, -1);
+
+    DosRequestMutexSem(sem->count_mutex, -1);
+
+    sem->count--;
+    if (sem->count == 0)
+    {
+        ULONG post_count;
+
+        DosResetEventSem(sem->event, &post_count);
+    }
+
+    DosReleaseMutexSem(sem->count_mutex);
+
+    DosReleaseMutexSem(sem->wait_mutex);
+
+    return 0;
+}
+
+static inline int sem_post(sem_t * sem)
+{
+    DosRequestMutexSem(sem->count_mutex, -1);
+
+    if (sem->count < 32768)
+    {
+        sem->count++;
+        DosPostEventSem(sem->event);
+    }
+
+    DosReleaseMutexSem(sem->count_mutex);
+
+    return 0;
+}
+
+static inline int sem_destroy(sem_t * sem)
+{
+    DosCloseEventSem(sem->event);
+    DosCloseMutexSem(sem->wait_mutex);
+    DosCloseMutexSem(sem->count_mutex);
+
+    return 0;
+}
+
+#define thread_sleep(nms) DosSleep(nms)
+
+#else
+
+#ifdef __APPLE__
+#define sem_t semaphore_t
+#define sem_init(X,Y,Z) semaphore_create(mach_task_self(), X, SYNC_POLICY_FIFO, Z)
+#define sem_wait(sem) (semaphore_wait(*sem) )
+#define sem_post(sem) semaphore_signal(*sem)
+#define sem_destroy(sem) semaphore_destroy(mach_task_self(),*sem)
+#define thread_sleep(nms) /* { struct timespec ts;ts.tv_sec=0; ts.tv_nsec = 1000*nms;nanosleep(&ts, NULL);} */
+#else
+#include <unistd.h>
+#include <sched.h>
+#define thread_sleep(nms) sched_yield();/* {struct timespec ts;ts.tv_sec=0; ts.tv_nsec = 1000*nms;nanosleep(&ts, NULL);} */
+#endif
+/* Not Windows. Assume pthreads */
+
+#endif
+
+#if ARCH_X86 || ARCH_X86_64
+#include "vpx_ports/x86.h"
+#else
+#define x86_pause_hint()
+#endif
+
+#endif /* CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD */
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_THREADING_H_
diff --git a/media/libvpx/vp8/common/treecoder.c b/media/libvpx/vp8/common/treecoder.c
new file mode 100644
index 000000000..d80c64bdf
--- /dev/null
+++ b/media/libvpx/vp8/common/treecoder.c
@@ -0,0 +1,143 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#if CONFIG_DEBUG
+#include <assert.h>
+#endif
+#include <stdio.h>
+
+#include "treecoder.h"
+
+static void tree2tok(
+    struct vp8_token_struct *const p,
+    vp8_tree t,
+    int i,
+    int v,
+    int L
+)
+{
+    v += v;
+    ++L;
+
+    do
+    {
+        const vp8_tree_index j = t[i++];
+
+        if (j <= 0)
+        {
+            p[-j].value = v;
+            p[-j].Len = L;
+        }
+        else
+            tree2tok(p, t, j, v, L);
+    }
+    while (++v & 1);
+}
+
+void vp8_tokens_from_tree(struct vp8_token_struct *p, vp8_tree t)
+{
+    tree2tok(p, t, 0, 0, 0);
+}
+
+void vp8_tokens_from_tree_offset(struct vp8_token_struct *p, vp8_tree t,
+                                 int offset)
+{
+    tree2tok(p - offset, t, 0, 0, 0);
+}
+
+static void branch_counts(
+    int n,                      /* n = size of alphabet */
+    vp8_token tok               [ /* n */ ],
+    vp8_tree tree,
+    unsigned int branch_ct       [ /* n-1 */ ] [2],
+    const unsigned int num_events[ /* n */ ]
+)
+{
+    const int tree_len = n - 1;
+    int t = 0;
+
+#if CONFIG_DEBUG
+    assert(tree_len);
+#endif
+
+    do
+    {
+        branch_ct[t][0] = branch_ct[t][1] = 0;
+    }
+    while (++t < tree_len);
+
+    t = 0;
+
+    do
+    {
+        int L = tok[t].Len;
+        const int enc = tok[t].value;
+        const unsigned int ct = num_events[t];
+
+        vp8_tree_index i = 0;
+
+        do
+        {
+            const int b = (enc >> --L) & 1;
+            const int j = i >> 1;
+#if CONFIG_DEBUG
+            assert(j < tree_len  &&  0 <= L);
+#endif
+
+            branch_ct [j] [b] += ct;
+            i = tree[ i + b];
+        }
+        while (i > 0);
+
+#if CONFIG_DEBUG
+        assert(!L);
+#endif
+    }
+    while (++t < n);
+
+}
+
+
+void vp8_tree_probs_from_distribution(
+    int n,                      /* n = size of alphabet */
+    vp8_token tok               [ /* n */ ],
+    vp8_tree tree,
+    vp8_prob probs          [ /* n-1 */ ],
+    unsigned int branch_ct       [ /* n-1 */ ] [2],
+    const unsigned int num_events[ /* n */ ],
+    unsigned int Pfac,
+    int rd
+)
+{
+    const int tree_len = n - 1;
+    int t = 0;
+
+    branch_counts(n, tok, tree, branch_ct, num_events);
+
+    do
+    {
+        const unsigned int *const c = branch_ct[t];
+        const unsigned int tot = c[0] + c[1];
+
+#if CONFIG_DEBUG
+        assert(tot < (1 << 24));        /* no overflow below */
+#endif
+
+        if (tot)
+        {
+            const unsigned int p = ((c[0] * Pfac) + (rd ? tot >> 1 : 0)) / tot;
+            probs[t] = p < 256 ? (p ? p : 1) : 255; /* agree w/old version for now */
+        }
+        else
+            probs[t] = vp8_prob_half;
+    }
+    while (++t < tree_len);
+}
diff --git a/media/libvpx/vp8/common/treecoder.h b/media/libvpx/vp8/common/treecoder.h
new file mode 100644
index 000000000..d22b7c570
--- /dev/null
+++ b/media/libvpx/vp8/common/treecoder.h
@@ -0,0 +1,98 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_TREECODER_H_
+#define VP8_COMMON_TREECODER_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned char vp8bc_index_t; /* probability index */
+
+
+typedef unsigned char vp8_prob;
+
+#define vp8_prob_half ( (vp8_prob) 128)
+
+typedef signed char vp8_tree_index;
+struct bool_coder_spec;
+
+typedef struct bool_coder_spec bool_coder_spec;
+typedef struct bool_writer bool_writer;
+typedef struct bool_reader bool_reader;
+
+typedef const bool_coder_spec c_bool_coder_spec;
+typedef const bool_writer c_bool_writer;
+typedef const bool_reader c_bool_reader;
+
+
+
+# define vp8_complement( x) (255 - x)
+
+
+/* We build coding trees compactly in arrays.
+   Each node of the tree is a pair of vp8_tree_indices.
+   Array index often references a corresponding probability table.
+   Index <= 0 means done encoding/decoding and value = -Index,
+   Index > 0 means need another bit, specification at index.
+   Nonnegative indices are always even;  processing begins at node 0. */
+
+typedef const vp8_tree_index vp8_tree[], *vp8_tree_p;
+
+
+typedef const struct vp8_token_struct
+{
+    int value;
+    int Len;
+} vp8_token;
+
+/* Construct encoding array from tree. */
+
+void vp8_tokens_from_tree(struct vp8_token_struct *, vp8_tree);
+void vp8_tokens_from_tree_offset(struct vp8_token_struct *, vp8_tree,
+                                 int offset);
+
+
+/* Convert array of token occurrence counts into a table of probabilities
+   for the associated binary encoding tree.  Also writes count of branches
+   taken for each node on the tree; this facilitiates decisions as to
+   probability updates. */
+
+void vp8_tree_probs_from_distribution(
+    int n,                      /* n = size of alphabet */
+    vp8_token tok               [ /* n */ ],
+    vp8_tree tree,
+    vp8_prob probs          [ /* n-1 */ ],
+    unsigned int branch_ct       [ /* n-1 */ ] [2],
+    const unsigned int num_events[ /* n */ ],
+    unsigned int Pfactor,
+    int Round
+);
+
+/* Variant of above using coder spec rather than hardwired 8-bit probs. */
+
+void vp8bc_tree_probs_from_distribution(
+    int n,                      /* n = size of alphabet */
+    vp8_token tok               [ /* n */ ],
+    vp8_tree tree,
+    vp8_prob probs          [ /* n-1 */ ],
+    unsigned int branch_ct       [ /* n-1 */ ] [2],
+    const unsigned int num_events[ /* n */ ],
+    c_bool_coder_spec *s
+);
+
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_TREECODER_H_
diff --git a/media/libvpx/vp8/common/variance.h b/media/libvpx/vp8/common/variance.h
new file mode 100644
index 000000000..c6c9f41bf
--- /dev/null
+++ b/media/libvpx/vp8/common/variance.h
@@ -0,0 +1,92 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_VARIANCE_H_
+#define VP8_COMMON_VARIANCE_H_
+
+#include "vpx_config.h"
+
+#include "vpx/vpx_integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned int(*vpx_sad_fn_t)(
+    const uint8_t *src_ptr,
+    int source_stride,
+    const uint8_t *ref_ptr,
+    int ref_stride);
+
+typedef void (*vp8_copy32xn_fn_t)(
+    const unsigned char *src_ptr,
+    int source_stride,
+    unsigned char *ref_ptr,
+    int ref_stride,
+    int n);
+
+typedef void (*vpx_sad_multi_fn_t)(
+    const unsigned char *src_ptr,
+    int source_stride,
+    const unsigned char *ref_array,
+    int  ref_stride,
+    unsigned int *sad_array);
+
+typedef void (*vpx_sad_multi_d_fn_t)
+    (
+     const unsigned char *src_ptr,
+     int source_stride,
+     const unsigned char * const ref_array[],
+     int  ref_stride,
+     unsigned int *sad_array
+    );
+
+typedef unsigned int (*vpx_variance_fn_t)
+    (
+     const unsigned char *src_ptr,
+     int source_stride,
+     const unsigned char *ref_ptr,
+     int  ref_stride,
+     unsigned int *sse
+    );
+
+typedef unsigned int (*vp8_subpixvariance_fn_t)
+    (
+      const unsigned char  *src_ptr,
+      int  source_stride,
+      int  xoffset,
+      int  yoffset,
+      const unsigned char *ref_ptr,
+      int Refstride,
+      unsigned int *sse
+    );
+
+typedef struct variance_vtable
+{
+    vpx_sad_fn_t            sdf;
+    vpx_variance_fn_t       vf;
+    vp8_subpixvariance_fn_t svf;
+    vpx_variance_fn_t       svf_halfpix_h;
+    vpx_variance_fn_t       svf_halfpix_v;
+    vpx_variance_fn_t       svf_halfpix_hv;
+    vpx_sad_multi_fn_t      sdx3f;
+    vpx_sad_multi_fn_t      sdx8f;
+    vpx_sad_multi_d_fn_t    sdx4df;
+#if ARCH_X86 || ARCH_X86_64
+    vp8_copy32xn_fn_t       copymem;
+#endif
+} vp8_variance_fn_ptr_t;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_VARIANCE_H_
diff --git a/media/libvpx/vp8/common/variance_c.c b/media/libvpx/vp8/common/variance_c.c
new file mode 100644
index 000000000..02915a4de
--- /dev/null
+++ b/media/libvpx/vp8/common/variance_c.c
@@ -0,0 +1,337 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vp8_rtcd.h"
+#include "filter.h"
+#include "variance.h"
+
+/* This is a bad idea.
+ * ctz = count trailing zeros */
+static int ctz(int a) {
+  int b = 0;
+  while (a != 1) {
+    a >>= 1;
+    b++;
+  }
+  return b;
+}
+
+static unsigned int variance(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    int  w,
+    int  h,
+    unsigned int *sse)
+{
+    int i, j;
+    int diff, sum;
+
+    sum = 0;
+    *sse = 0;
+
+    for (i = 0; i < h; i++)
+    {
+        for (j = 0; j < w; j++)
+        {
+            diff = src_ptr[j] - ref_ptr[j];
+            sum += diff;
+            *sse += diff * diff;
+        }
+
+        src_ptr += source_stride;
+        ref_ptr += recon_stride;
+    }
+
+    return (*sse - (((unsigned int)sum * sum) >> (int)((ctz(w) + ctz(h)))));
+}
+
+/****************************************************************************
+ *
+ *  ROUTINE       : filter_block2d_bil_first_pass
+ *
+ *  INPUTS        : UINT8  *src_ptr          : Pointer to source block.
+ *                  UINT32 src_pixels_per_line : Stride of input block.
+ *                  UINT32 pixel_step        : Offset between filter input samples (see notes).
+ *                  UINT32 output_height     : Input block height.
+ *                  UINT32 output_width      : Input block width.
+ *                  INT32  *vp8_filter          : Array of 2 bi-linear filter taps.
+ *
+ *  OUTPUTS       : INT32 *output_ptr        : Pointer to filtered block.
+ *
+ *  RETURNS       : void
+ *
+ *  FUNCTION      : Applies a 1-D 2-tap bi-linear filter to the source block in
+ *                  either horizontal or vertical direction to produce the
+ *                  filtered output block. Used to implement first-pass
+ *                  of 2-D separable filter.
+ *
+ *  SPECIAL NOTES : Produces INT32 output to retain precision for next pass.
+ *                  Two filter taps should sum to VP8_FILTER_WEIGHT.
+ *                  pixel_step defines whether the filter is applied
+ *                  horizontally (pixel_step=1) or vertically (pixel_step=stride).
+ *                  It defines the offset required to move from one input
+ *                  to the next.
+ *
+ ****************************************************************************/
+static void var_filter_block2d_bil_first_pass
+(
+    const unsigned char *src_ptr,
+    unsigned short *output_ptr,
+    unsigned int src_pixels_per_line,
+    int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    const short *vp8_filter
+)
+{
+    unsigned int i, j;
+
+    for (i = 0; i < output_height; i++)
+    {
+        for (j = 0; j < output_width; j++)
+        {
+            /* Apply bilinear filter */
+            output_ptr[j] = (((int)src_ptr[0]          * vp8_filter[0]) +
+                             ((int)src_ptr[pixel_step] * vp8_filter[1]) +
+                             (VP8_FILTER_WEIGHT / 2)) >> VP8_FILTER_SHIFT;
+            src_ptr++;
+        }
+
+        /* Next row... */
+        src_ptr    += src_pixels_per_line - output_width;
+        output_ptr += output_width;
+    }
+}
+
+/****************************************************************************
+ *
+ *  ROUTINE       : filter_block2d_bil_second_pass
+ *
+ *  INPUTS        : INT32  *src_ptr          : Pointer to source block.
+ *                  UINT32 src_pixels_per_line : Stride of input block.
+ *                  UINT32 pixel_step        : Offset between filter input samples (see notes).
+ *                  UINT32 output_height     : Input block height.
+ *                  UINT32 output_width      : Input block width.
+ *                  INT32  *vp8_filter          : Array of 2 bi-linear filter taps.
+ *
+ *  OUTPUTS       : UINT16 *output_ptr       : Pointer to filtered block.
+ *
+ *  RETURNS       : void
+ *
+ *  FUNCTION      : Applies a 1-D 2-tap bi-linear filter to the source block in
+ *                  either horizontal or vertical direction to produce the
+ *                  filtered output block. Used to implement second-pass
+ *                  of 2-D separable filter.
+ *
+ *  SPECIAL NOTES : Requires 32-bit input as produced by filter_block2d_bil_first_pass.
+ *                  Two filter taps should sum to VP8_FILTER_WEIGHT.
+ *                  pixel_step defines whether the filter is applied
+ *                  horizontally (pixel_step=1) or vertically (pixel_step=stride).
+ *                  It defines the offset required to move from one input
+ *                  to the next.
+ *
+ ****************************************************************************/
+static void var_filter_block2d_bil_second_pass
+(
+    const unsigned short *src_ptr,
+    unsigned char  *output_ptr,
+    unsigned int  src_pixels_per_line,
+    unsigned int  pixel_step,
+    unsigned int  output_height,
+    unsigned int  output_width,
+    const short *vp8_filter
+)
+{
+    unsigned int  i, j;
+    int  Temp;
+
+    for (i = 0; i < output_height; i++)
+    {
+        for (j = 0; j < output_width; j++)
+        {
+            /* Apply filter */
+            Temp = ((int)src_ptr[0]          * vp8_filter[0]) +
+                   ((int)src_ptr[pixel_step] * vp8_filter[1]) +
+                   (VP8_FILTER_WEIGHT / 2);
+            output_ptr[j] = (unsigned int)(Temp >> VP8_FILTER_SHIFT);
+            src_ptr++;
+        }
+
+        /* Next row... */
+        src_ptr    += src_pixels_per_line - output_width;
+        output_ptr += output_width;
+    }
+}
+
+
+unsigned int vp8_sub_pixel_variance4x4_c
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned char  temp2[20*16];
+    const short *HFilter, *VFilter;
+    unsigned short FData3[5*4]; /* Temp data bufffer used in filtering */
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    /* First filter 1d Horizontal */
+    var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 5, 4, HFilter);
+
+    /* Now filter Verticaly */
+    var_filter_block2d_bil_second_pass(FData3, temp2, 4,  4,  4,  4, VFilter);
+
+    return variance(temp2, 4, dst_ptr, dst_pixels_per_line, 4, 4, sse);
+}
+
+
+unsigned int vp8_sub_pixel_variance8x8_c
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned short FData3[9*8]; /* Temp data bufffer used in filtering */
+    unsigned char  temp2[20*16];
+    const short *HFilter, *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 9, 8, HFilter);
+    var_filter_block2d_bil_second_pass(FData3, temp2, 8, 8, 8, 8, VFilter);
+
+    return variance(temp2, 8, dst_ptr, dst_pixels_per_line, 8, 8, sse);
+}
+
+unsigned int vp8_sub_pixel_variance16x16_c
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned short FData3[17*16];   /* Temp data bufffer used in filtering */
+    unsigned char  temp2[20*16];
+    const short *HFilter, *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 17, 16, HFilter);
+    var_filter_block2d_bil_second_pass(FData3, temp2, 16, 16, 16, 16, VFilter);
+
+    return variance(temp2, 16, dst_ptr, dst_pixels_per_line, 16, 16, sse);
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_h_c(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    unsigned int *sse)
+{
+    return vp8_sub_pixel_variance16x16_c(src_ptr, source_stride, 4, 0,
+                                         ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_v_c(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    unsigned int *sse)
+{
+    return vp8_sub_pixel_variance16x16_c(src_ptr, source_stride, 0, 4,
+                                         ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_hv_c(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    unsigned int *sse)
+{
+    return vp8_sub_pixel_variance16x16_c(src_ptr, source_stride, 4, 4,
+                                         ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp8_sub_pixel_variance16x8_c
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned short FData3[16*9];    /* Temp data bufffer used in filtering */
+    unsigned char  temp2[20*16];
+    const short *HFilter, *VFilter;
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+    var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 9, 16, HFilter);
+    var_filter_block2d_bil_second_pass(FData3, temp2, 16, 16, 8, 16, VFilter);
+
+    return variance(temp2, 16, dst_ptr, dst_pixels_per_line, 16, 8, sse);
+}
+
+unsigned int vp8_sub_pixel_variance8x16_c
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    unsigned short FData3[9*16];    /* Temp data bufffer used in filtering */
+    unsigned char  temp2[20*16];
+    const short *HFilter, *VFilter;
+
+
+    HFilter = vp8_bilinear_filters[xoffset];
+    VFilter = vp8_bilinear_filters[yoffset];
+
+
+    var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 17, 8, HFilter);
+    var_filter_block2d_bil_second_pass(FData3, temp2, 8, 8, 16, 8, VFilter);
+
+    return variance(temp2, 8, dst_ptr, dst_pixels_per_line, 8, 16, sse);
+}
diff --git a/media/libvpx/vp8/common/vp8_entropymodedata.h b/media/libvpx/vp8/common/vp8_entropymodedata.h
new file mode 100644
index 000000000..c4aed4989
--- /dev/null
+++ b/media/libvpx/vp8/common/vp8_entropymodedata.h
@@ -0,0 +1,254 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+*/
+
+#ifndef VP8_COMMON_VP8_ENTROPYMODEDATA_H_
+#define VP8_COMMON_VP8_ENTROPYMODEDATA_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*Generated file, included by entropymode.c*/
+
+
+const struct vp8_token_struct vp8_bmode_encodings[VP8_BINTRAMODES] =
+{
+    { 0, 1 },
+    { 2, 2 },
+    { 6, 3 },
+    { 28, 5 },
+    { 30, 5 },
+    { 58, 6 },
+    { 59, 6 },
+    { 62, 6 },
+    { 126, 7 },
+    { 127, 7 }
+};
+
+const struct vp8_token_struct vp8_ymode_encodings[VP8_YMODES] =
+{
+    { 0, 1 },
+    { 4, 3 },
+    { 5, 3 },
+    { 6, 3 },
+    { 7, 3 }
+};
+
+const struct vp8_token_struct vp8_kf_ymode_encodings[VP8_YMODES] =
+{
+    { 4, 3 },
+    { 5, 3 },
+    { 6, 3 },
+    { 7, 3 },
+    { 0, 1 }
+};
+
+const struct vp8_token_struct vp8_uv_mode_encodings[VP8_UV_MODES] =
+{
+    { 0, 1 },
+    { 2, 2 },
+    { 6, 3 },
+    { 7, 3 }
+};
+
+const struct vp8_token_struct vp8_mbsplit_encodings[VP8_NUMMBSPLITS] =
+{
+    { 6, 3 },
+    { 7, 3 },
+    { 2, 2 },
+    { 0, 1 }
+};
+
+const struct vp8_token_struct vp8_mv_ref_encoding_array[VP8_MVREFS] =
+{
+    { 2, 2 },
+    { 6, 3 },
+    { 0, 1 },
+    { 14, 4 },
+    { 15, 4 }
+};
+
+const struct vp8_token_struct vp8_sub_mv_ref_encoding_array[VP8_SUBMVREFS] =
+{
+    { 0, 1 },
+    { 2, 2 },
+    { 6, 3 },
+    { 7, 3 }
+};
+
+const struct vp8_token_struct vp8_small_mvencodings[8] =
+{
+    { 0, 3 },
+    { 1, 3 },
+    { 2, 3 },
+    { 3, 3 },
+    { 4, 3 },
+    { 5, 3 },
+    { 6, 3 },
+    { 7, 3 }
+};
+
+const vp8_prob vp8_ymode_prob[VP8_YMODES-1] =
+{
+    112, 86, 140, 37
+};
+
+const vp8_prob vp8_kf_ymode_prob[VP8_YMODES-1] =
+{
+    145, 156, 163, 128
+};
+
+const vp8_prob vp8_uv_mode_prob[VP8_UV_MODES-1] =
+{
+    162, 101, 204
+};
+
+const vp8_prob vp8_kf_uv_mode_prob[VP8_UV_MODES-1] =
+{
+    142, 114, 183
+};
+
+const vp8_prob vp8_bmode_prob[VP8_BINTRAMODES-1] =
+{
+    120, 90, 79, 133, 87, 85, 80, 111, 151
+};
+
+
+
+const vp8_prob vp8_kf_bmode_prob
+[VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES-1] =
+{
+    {
+        { 231, 120,  48,  89, 115, 113, 120, 152, 112 },
+        { 152, 179,  64, 126, 170, 118,  46,  70,  95 },
+        { 175,  69, 143,  80,  85,  82,  72, 155, 103 },
+        {  56,  58,  10, 171, 218, 189,  17,  13, 152 },
+        { 144,  71,  10,  38, 171, 213, 144,  34,  26 },
+        { 114,  26,  17, 163,  44, 195,  21,  10, 173 },
+        { 121,  24,  80, 195,  26,  62,  44,  64,  85 },
+        { 170,  46,  55,  19, 136, 160,  33, 206,  71 },
+        {  63,  20,   8, 114, 114, 208,  12,   9, 226 },
+        {  81,  40,  11,  96, 182,  84,  29,  16,  36 }
+    },
+    {
+        { 134, 183,  89, 137,  98, 101, 106, 165, 148 },
+        {  72, 187, 100, 130, 157, 111,  32,  75,  80 },
+        {  66, 102, 167,  99,  74,  62,  40, 234, 128 },
+        {  41,  53,   9, 178, 241, 141,  26,   8, 107 },
+        { 104,  79,  12,  27, 217, 255,  87,  17,   7 },
+        {  74,  43,  26, 146,  73, 166,  49,  23, 157 },
+        {  65,  38, 105, 160,  51,  52,  31, 115, 128 },
+        {  87,  68,  71,  44, 114,  51,  15, 186,  23 },
+        {  47,  41,  14, 110, 182, 183,  21,  17, 194 },
+        {  66,  45,  25, 102, 197, 189,  23,  18,  22 }
+    },
+    {
+        {  88,  88, 147, 150,  42,  46,  45, 196, 205 },
+        {  43,  97, 183, 117,  85,  38,  35, 179,  61 },
+        {  39,  53, 200,  87,  26,  21,  43, 232, 171 },
+        {  56,  34,  51, 104, 114, 102,  29,  93,  77 },
+        { 107,  54,  32,  26,  51,   1,  81,  43,  31 },
+        {  39,  28,  85, 171,  58, 165,  90,  98,  64 },
+        {  34,  22, 116, 206,  23,  34,  43, 166,  73 },
+        {  68,  25, 106,  22,  64, 171,  36, 225, 114 },
+        {  34,  19,  21, 102, 132, 188,  16,  76, 124 },
+        {  62,  18,  78,  95,  85,  57,  50,  48,  51 }
+    },
+    {
+        { 193, 101,  35, 159, 215, 111,  89,  46, 111 },
+        {  60, 148,  31, 172, 219, 228,  21,  18, 111 },
+        { 112, 113,  77,  85, 179, 255,  38, 120, 114 },
+        {  40,  42,   1, 196, 245, 209,  10,  25, 109 },
+        { 100,  80,   8,  43, 154,   1,  51,  26,  71 },
+        {  88,  43,  29, 140, 166, 213,  37,  43, 154 },
+        {  61,  63,  30, 155,  67,  45,  68,   1, 209 },
+        { 142,  78,  78,  16, 255, 128,  34, 197, 171 },
+        {  41,  40,   5, 102, 211, 183,   4,   1, 221 },
+        {  51,  50,  17, 168, 209, 192,  23,  25,  82 }
+    },
+    {
+        { 125,  98,  42,  88, 104,  85, 117, 175,  82 },
+        {  95,  84,  53,  89, 128, 100, 113, 101,  45 },
+        {  75,  79, 123,  47,  51, 128,  81, 171,   1 },
+        {  57,  17,   5,  71, 102,  57,  53,  41,  49 },
+        { 115,  21,   2,  10, 102, 255, 166,  23,   6 },
+        {  38,  33,  13, 121,  57,  73,  26,   1,  85 },
+        {  41,  10,  67, 138,  77, 110,  90,  47, 114 },
+        { 101,  29,  16,  10,  85, 128, 101, 196,  26 },
+        {  57,  18,  10, 102, 102, 213,  34,  20,  43 },
+        { 117,  20,  15,  36, 163, 128,  68,   1,  26 }
+    },
+    {
+        { 138,  31,  36, 171,  27, 166,  38,  44, 229 },
+        {  67,  87,  58, 169,  82, 115,  26,  59, 179 },
+        {  63,  59,  90, 180,  59, 166,  93,  73, 154 },
+        {  40,  40,  21, 116, 143, 209,  34,  39, 175 },
+        {  57,  46,  22,  24, 128,   1,  54,  17,  37 },
+        {  47,  15,  16, 183,  34, 223,  49,  45, 183 },
+        {  46,  17,  33, 183,   6,  98,  15,  32, 183 },
+        {  65,  32,  73, 115,  28, 128,  23, 128, 205 },
+        {  40,   3,   9, 115,  51, 192,  18,   6, 223 },
+        {  87,  37,   9, 115,  59,  77,  64,  21,  47 }
+    },
+    {
+        { 104,  55,  44, 218,   9,  54,  53, 130, 226 },
+        {  64,  90,  70, 205,  40,  41,  23,  26,  57 },
+        {  54,  57, 112, 184,   5,  41,  38, 166, 213 },
+        {  30,  34,  26, 133, 152, 116,  10,  32, 134 },
+        {  75,  32,  12,  51, 192, 255, 160,  43,  51 },
+        {  39,  19,  53, 221,  26, 114,  32,  73, 255 },
+        {  31,   9,  65, 234,   2,  15,   1, 118,  73 },
+        {  88,  31,  35,  67, 102,  85,  55, 186,  85 },
+        {  56,  21,  23, 111,  59, 205,  45,  37, 192 },
+        {  55,  38,  70, 124,  73, 102,   1,  34,  98 }
+    },
+    {
+        { 102,  61,  71,  37,  34,  53,  31, 243, 192 },
+        {  69,  60,  71,  38,  73, 119,  28, 222,  37 },
+        {  68,  45, 128,  34,   1,  47,  11, 245, 171 },
+        {  62,  17,  19,  70, 146,  85,  55,  62,  70 },
+        {  75,  15,   9,   9,  64, 255, 184, 119,  16 },
+        {  37,  43,  37, 154, 100, 163,  85, 160,   1 },
+        {  63,   9,  92, 136,  28,  64,  32, 201,  85 },
+        {  86,   6,  28,   5,  64, 255,  25, 248,   1 },
+        {  56,   8,  17, 132, 137, 255,  55, 116, 128 },
+        {  58,  15,  20,  82, 135,  57,  26, 121,  40 }
+    },
+    {
+        { 164,  50,  31, 137, 154, 133,  25,  35, 218 },
+        {  51, 103,  44, 131, 131, 123,  31,   6, 158 },
+        {  86,  40,  64, 135, 148, 224,  45, 183, 128 },
+        {  22,  26,  17, 131, 240, 154,  14,   1, 209 },
+        {  83,  12,  13,  54, 192, 255,  68,  47,  28 },
+        {  45,  16,  21,  91,  64, 222,   7,   1, 197 },
+        {  56,  21,  39, 155,  60, 138,  23, 102, 213 },
+        {  85,  26,  85,  85, 128, 128,  32, 146, 171 },
+        {  18,  11,   7,  63, 144, 171,   4,   4, 246 },
+        {  35,  27,  10, 146, 174, 171,  12,  26, 128 }
+    },
+    {
+        { 190,  80,  35,  99, 180,  80, 126,  54,  45 },
+        {  85, 126,  47,  87, 176,  51,  41,  20,  32 },
+        { 101,  75, 128, 139, 118, 146, 116, 128,  85 },
+        {  56,  41,  15, 176, 236,  85,  37,   9,  62 },
+        { 146,  36,  19,  30, 171, 255,  97,  27,  20 },
+        {  71,  30,  17, 119, 118, 255,  17,  18, 138 },
+        { 101,  38,  60, 138,  55,  70,  43,  26, 142 },
+        { 138,  45,  61,  62, 219,   1,  81, 188,  64 },
+        {  32,  41,  20, 117, 151, 142,  20,  21, 163 },
+        { 112,  19,  12,  61, 195, 128,  48,   4,  24 }
+    }
+};
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_VP8_ENTROPYMODEDATA_H_
diff --git a/media/libvpx/vp8/common/x86/copy_sse2.asm b/media/libvpx/vp8/common/x86/copy_sse2.asm
new file mode 100644
index 000000000..86fae2695
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/copy_sse2.asm
@@ -0,0 +1,93 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+
+;void vp8_copy32xn_sse2(
+;    unsigned char *src_ptr,
+;    int  src_stride,
+;    unsigned char *dst_ptr,
+;    int  dst_stride,
+;    int height);
+global sym(vp8_copy32xn_sse2) PRIVATE
+sym(vp8_copy32xn_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov             rsi,        arg(0) ;src_ptr
+        mov             rdi,        arg(2) ;dst_ptr
+
+        movsxd          rax,        dword ptr arg(1) ;src_stride
+        movsxd          rdx,        dword ptr arg(3) ;dst_stride
+        movsxd          rcx,        dword ptr arg(4) ;height
+
+.block_copy_sse2_loopx4:
+        movdqu          xmm0,       XMMWORD PTR [rsi]
+        movdqu          xmm1,       XMMWORD PTR [rsi + 16]
+        movdqu          xmm2,       XMMWORD PTR [rsi + rax]
+        movdqu          xmm3,       XMMWORD PTR [rsi + rax + 16]
+
+        lea             rsi,        [rsi+rax*2]
+
+        movdqu          xmm4,       XMMWORD PTR [rsi]
+        movdqu          xmm5,       XMMWORD PTR [rsi + 16]
+        movdqu          xmm6,       XMMWORD PTR [rsi + rax]
+        movdqu          xmm7,       XMMWORD PTR [rsi + rax + 16]
+
+        lea             rsi,    [rsi+rax*2]
+
+        movdqa          XMMWORD PTR [rdi], xmm0
+        movdqa          XMMWORD PTR [rdi + 16], xmm1
+        movdqa          XMMWORD PTR [rdi + rdx], xmm2
+        movdqa          XMMWORD PTR [rdi + rdx + 16], xmm3
+
+        lea             rdi,    [rdi+rdx*2]
+
+        movdqa          XMMWORD PTR [rdi], xmm4
+        movdqa          XMMWORD PTR [rdi + 16], xmm5
+        movdqa          XMMWORD PTR [rdi + rdx], xmm6
+        movdqa          XMMWORD PTR [rdi + rdx + 16], xmm7
+
+        lea             rdi,    [rdi+rdx*2]
+
+        sub             rcx,     4
+        cmp             rcx,     4
+        jge             .block_copy_sse2_loopx4
+
+        cmp             rcx, 0
+        je              .copy_is_done
+
+.block_copy_sse2_loop:
+        movdqu          xmm0,       XMMWORD PTR [rsi]
+        movdqu          xmm1,       XMMWORD PTR [rsi + 16]
+        lea             rsi,    [rsi+rax]
+
+        movdqa          XMMWORD PTR [rdi], xmm0
+        movdqa          XMMWORD PTR [rdi + 16], xmm1
+        lea             rdi,    [rdi+rdx]
+
+        sub             rcx,     1
+        jne             .block_copy_sse2_loop
+
+.copy_is_done:
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/common/x86/copy_sse3.asm b/media/libvpx/vp8/common/x86/copy_sse3.asm
new file mode 100644
index 000000000..d789a40cc
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/copy_sse3.asm
@@ -0,0 +1,146 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%macro STACK_FRAME_CREATE_X3 0
+%if ABI_IS_32BIT
+  %define     src_ptr       rsi
+  %define     src_stride    rax
+  %define     ref_ptr       rdi
+  %define     ref_stride    rdx
+  %define     end_ptr       rcx
+  %define     ret_var       rbx
+  %define     result_ptr    arg(4)
+  %define     max_sad       arg(4)
+  %define     height        dword ptr arg(4)
+    push        rbp
+    mov         rbp,        rsp
+    push        rsi
+    push        rdi
+    push        rbx
+
+    mov         rsi,        arg(0)              ; src_ptr
+    mov         rdi,        arg(2)              ; ref_ptr
+
+    movsxd      rax,        dword ptr arg(1)    ; src_stride
+    movsxd      rdx,        dword ptr arg(3)    ; ref_stride
+%else
+  %if LIBVPX_YASM_WIN64
+    SAVE_XMM 7, u
+    %define     src_ptr     rcx
+    %define     src_stride  rdx
+    %define     ref_ptr     r8
+    %define     ref_stride  r9
+    %define     end_ptr     r10
+    %define     ret_var     r11
+    %define     result_ptr  [rsp+xmm_stack_space+8+4*8]
+    %define     max_sad     [rsp+xmm_stack_space+8+4*8]
+    %define     height      dword ptr [rsp+xmm_stack_space+8+4*8]
+  %else
+    %define     src_ptr     rdi
+    %define     src_stride  rsi
+    %define     ref_ptr     rdx
+    %define     ref_stride  rcx
+    %define     end_ptr     r9
+    %define     ret_var     r10
+    %define     result_ptr  r8
+    %define     max_sad     r8
+    %define     height      r8
+  %endif
+%endif
+
+%endmacro
+
+%macro STACK_FRAME_DESTROY_X3 0
+  %define     src_ptr
+  %define     src_stride
+  %define     ref_ptr
+  %define     ref_stride
+  %define     end_ptr
+  %define     ret_var
+  %define     result_ptr
+  %define     max_sad
+  %define     height
+
+%if ABI_IS_32BIT
+    pop         rbx
+    pop         rdi
+    pop         rsi
+    pop         rbp
+%else
+  %if LIBVPX_YASM_WIN64
+    RESTORE_XMM
+  %endif
+%endif
+    ret
+%endmacro
+
+
+;void vp8_copy32xn_sse3(
+;    unsigned char *src_ptr,
+;    int  src_stride,
+;    unsigned char *dst_ptr,
+;    int  dst_stride,
+;    int height);
+global sym(vp8_copy32xn_sse3) PRIVATE
+sym(vp8_copy32xn_sse3):
+
+    STACK_FRAME_CREATE_X3
+
+.block_copy_sse3_loopx4:
+        lea             end_ptr,    [src_ptr+src_stride*2]
+
+        movdqu          xmm0,       XMMWORD PTR [src_ptr]
+        movdqu          xmm1,       XMMWORD PTR [src_ptr + 16]
+        movdqu          xmm2,       XMMWORD PTR [src_ptr + src_stride]
+        movdqu          xmm3,       XMMWORD PTR [src_ptr + src_stride + 16]
+        movdqu          xmm4,       XMMWORD PTR [end_ptr]
+        movdqu          xmm5,       XMMWORD PTR [end_ptr + 16]
+        movdqu          xmm6,       XMMWORD PTR [end_ptr + src_stride]
+        movdqu          xmm7,       XMMWORD PTR [end_ptr + src_stride + 16]
+
+        lea             src_ptr,    [src_ptr+src_stride*4]
+
+        lea             end_ptr,    [ref_ptr+ref_stride*2]
+
+        movdqa          XMMWORD PTR [ref_ptr], xmm0
+        movdqa          XMMWORD PTR [ref_ptr + 16], xmm1
+        movdqa          XMMWORD PTR [ref_ptr + ref_stride], xmm2
+        movdqa          XMMWORD PTR [ref_ptr + ref_stride + 16], xmm3
+        movdqa          XMMWORD PTR [end_ptr], xmm4
+        movdqa          XMMWORD PTR [end_ptr + 16], xmm5
+        movdqa          XMMWORD PTR [end_ptr + ref_stride], xmm6
+        movdqa          XMMWORD PTR [end_ptr + ref_stride + 16], xmm7
+
+        lea             ref_ptr,    [ref_ptr+ref_stride*4]
+
+        sub             height,     4
+        cmp             height,     4
+        jge             .block_copy_sse3_loopx4
+
+        ;Check to see if there is more rows need to be copied.
+        cmp             height, 0
+        je              .copy_is_done
+
+.block_copy_sse3_loop:
+        movdqu          xmm0,       XMMWORD PTR [src_ptr]
+        movdqu          xmm1,       XMMWORD PTR [src_ptr + 16]
+        lea             src_ptr,    [src_ptr+src_stride]
+
+        movdqa          XMMWORD PTR [ref_ptr], xmm0
+        movdqa          XMMWORD PTR [ref_ptr + 16], xmm1
+        lea             ref_ptr,    [ref_ptr+ref_stride]
+
+        sub             height,     1
+        jne             .block_copy_sse3_loop
+
+.copy_is_done:
+    STACK_FRAME_DESTROY_X3
diff --git a/media/libvpx/vp8/common/x86/dequantize_mmx.asm b/media/libvpx/vp8/common/x86/dequantize_mmx.asm
new file mode 100644
index 000000000..4e551f00a
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/dequantize_mmx.asm
@@ -0,0 +1,258 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+
+;void vp8_dequantize_b_impl_mmx(short *sq, short *dq, short *q)
+global sym(vp8_dequantize_b_impl_mmx) PRIVATE
+sym(vp8_dequantize_b_impl_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov       rsi, arg(0) ;sq
+        mov       rdi, arg(1) ;dq
+        mov       rax, arg(2) ;q
+
+        movq      mm1, [rsi]
+        pmullw    mm1, [rax+0]            ; mm4 *= kernel 0 modifiers.
+        movq      [rdi], mm1
+
+        movq      mm1, [rsi+8]
+        pmullw    mm1, [rax+8]            ; mm4 *= kernel 0 modifiers.
+        movq      [rdi+8], mm1
+
+        movq      mm1, [rsi+16]
+        pmullw    mm1, [rax+16]            ; mm4 *= kernel 0 modifiers.
+        movq      [rdi+16], mm1
+
+        movq      mm1, [rsi+24]
+        pmullw    mm1, [rax+24]            ; mm4 *= kernel 0 modifiers.
+        movq      [rdi+24], mm1
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void dequant_idct_add_mmx(
+;short *input,            0
+;short *dq,               1
+;unsigned char *dest,     2
+;int stride)              3
+global sym(vp8_dequant_idct_add_mmx) PRIVATE
+sym(vp8_dequant_idct_add_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    GET_GOT     rbx
+    push        rdi
+    ; end prolog
+
+        mov         rax,    arg(0) ;input
+        mov         rdx,    arg(1) ;dq
+
+
+        movq        mm0,    [rax   ]
+        pmullw      mm0,    [rdx]
+
+        movq        mm1,    [rax +8]
+        pmullw      mm1,    [rdx +8]
+
+        movq        mm2,    [rax+16]
+        pmullw      mm2,    [rdx+16]
+
+        movq        mm3,    [rax+24]
+        pmullw      mm3,    [rdx+24]
+
+        mov         rdx,    arg(2) ;dest
+
+        pxor        mm7,    mm7
+
+
+        movq        [rax],   mm7
+        movq        [rax+8], mm7
+
+        movq        [rax+16],mm7
+        movq        [rax+24],mm7
+
+
+        movsxd      rdi,            dword ptr arg(3) ;stride
+
+        psubw       mm0,            mm2             ; b1= 0-2
+        paddw       mm2,            mm2             ;
+
+        movq        mm5,            mm1
+        paddw       mm2,            mm0             ; a1 =0+2
+
+        pmulhw      mm5,            [GLOBAL(x_s1sqr2)];
+        paddw       mm5,            mm1             ; ip1 * sin(pi/8) * sqrt(2)
+
+        movq        mm7,            mm3             ;
+        pmulhw      mm7,            [GLOBAL(x_c1sqr2less1)];
+
+        paddw       mm7,            mm3             ; ip3 * cos(pi/8) * sqrt(2)
+        psubw       mm7,            mm5             ; c1
+
+        movq        mm5,            mm1
+        movq        mm4,            mm3
+
+        pmulhw      mm5,            [GLOBAL(x_c1sqr2less1)]
+        paddw       mm5,            mm1
+
+        pmulhw      mm3,            [GLOBAL(x_s1sqr2)]
+        paddw       mm3,            mm4
+
+        paddw       mm3,            mm5             ; d1
+        movq        mm6,            mm2             ; a1
+
+        movq        mm4,            mm0             ; b1
+        paddw       mm2,            mm3             ;0
+
+        paddw       mm4,            mm7             ;1
+        psubw       mm0,            mm7             ;2
+
+        psubw       mm6,            mm3             ;3
+
+        movq        mm1,            mm2             ; 03 02 01 00
+        movq        mm3,            mm4             ; 23 22 21 20
+
+        punpcklwd   mm1,            mm0             ; 11 01 10 00
+        punpckhwd   mm2,            mm0             ; 13 03 12 02
+
+        punpcklwd   mm3,            mm6             ; 31 21 30 20
+        punpckhwd   mm4,            mm6             ; 33 23 32 22
+
+        movq        mm0,            mm1             ; 11 01 10 00
+        movq        mm5,            mm2             ; 13 03 12 02
+
+        punpckldq   mm0,            mm3             ; 30 20 10 00
+        punpckhdq   mm1,            mm3             ; 31 21 11 01
+
+        punpckldq   mm2,            mm4             ; 32 22 12 02
+        punpckhdq   mm5,            mm4             ; 33 23 13 03
+
+        movq        mm3,            mm5             ; 33 23 13 03
+
+        psubw       mm0,            mm2             ; b1= 0-2
+        paddw       mm2,            mm2             ;
+
+        movq        mm5,            mm1
+        paddw       mm2,            mm0             ; a1 =0+2
+
+        pmulhw      mm5,            [GLOBAL(x_s1sqr2)];
+        paddw       mm5,            mm1             ; ip1 * sin(pi/8) * sqrt(2)
+
+        movq        mm7,            mm3             ;
+        pmulhw      mm7,            [GLOBAL(x_c1sqr2less1)];
+
+        paddw       mm7,            mm3             ; ip3 * cos(pi/8) * sqrt(2)
+        psubw       mm7,            mm5             ; c1
+
+        movq        mm5,            mm1
+        movq        mm4,            mm3
+
+        pmulhw      mm5,            [GLOBAL(x_c1sqr2less1)]
+        paddw       mm5,            mm1
+
+        pmulhw      mm3,            [GLOBAL(x_s1sqr2)]
+        paddw       mm3,            mm4
+
+        paddw       mm3,            mm5             ; d1
+        paddw       mm0,            [GLOBAL(fours)]
+
+        paddw       mm2,            [GLOBAL(fours)]
+        movq        mm6,            mm2             ; a1
+
+        movq        mm4,            mm0             ; b1
+        paddw       mm2,            mm3             ;0
+
+        paddw       mm4,            mm7             ;1
+        psubw       mm0,            mm7             ;2
+
+        psubw       mm6,            mm3             ;3
+        psraw       mm2,            3
+
+        psraw       mm0,            3
+        psraw       mm4,            3
+
+        psraw       mm6,            3
+
+        movq        mm1,            mm2             ; 03 02 01 00
+        movq        mm3,            mm4             ; 23 22 21 20
+
+        punpcklwd   mm1,            mm0             ; 11 01 10 00
+        punpckhwd   mm2,            mm0             ; 13 03 12 02
+
+        punpcklwd   mm3,            mm6             ; 31 21 30 20
+        punpckhwd   mm4,            mm6             ; 33 23 32 22
+
+        movq        mm0,            mm1             ; 11 01 10 00
+        movq        mm5,            mm2             ; 13 03 12 02
+
+        punpckldq   mm0,            mm3             ; 30 20 10 00
+        punpckhdq   mm1,            mm3             ; 31 21 11 01
+
+        punpckldq   mm2,            mm4             ; 32 22 12 02
+        punpckhdq   mm5,            mm4             ; 33 23 13 03
+
+        pxor        mm7,            mm7
+
+        movd        mm4,            [rdx]
+        punpcklbw   mm4,            mm7
+        paddsw      mm0,            mm4
+        packuswb    mm0,            mm7
+        movd        [rdx],          mm0
+
+        movd        mm4,            [rdx+rdi]
+        punpcklbw   mm4,            mm7
+        paddsw      mm1,            mm4
+        packuswb    mm1,            mm7
+        movd        [rdx+rdi],      mm1
+
+        movd        mm4,            [rdx+2*rdi]
+        punpcklbw   mm4,            mm7
+        paddsw      mm2,            mm4
+        packuswb    mm2,            mm7
+        movd        [rdx+rdi*2],    mm2
+
+        add         rdx,            rdi
+
+        movd        mm4,            [rdx+2*rdi]
+        punpcklbw   mm4,            mm7
+        paddsw      mm5,            mm4
+        packuswb    mm5,            mm7
+        movd        [rdx+rdi*2],    mm5
+
+    ; begin epilog
+    pop rdi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+x_s1sqr2:
+    times 4 dw 0x8A8C
+align 16
+x_c1sqr2less1:
+    times 4 dw 0x4E7B
+align 16
+fours:
+    times 4 dw 0x0004
diff --git a/media/libvpx/vp8/common/x86/filter_x86.c b/media/libvpx/vp8/common/x86/filter_x86.c
new file mode 100644
index 000000000..7f496ed7d
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/filter_x86.c
@@ -0,0 +1,35 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vp8/common/x86/filter_x86.h"
+
+DECLARE_ALIGNED(16, const short, vp8_bilinear_filters_x86_4[8][8]) =
+{
+    { 128, 128, 128, 128,   0,   0,   0,   0 },
+    { 112, 112, 112, 112,  16,  16,  16,  16 },
+    {  96,  96,  96,  96,  32,  32,  32,  32 },
+    {  80,  80,  80,  80,  48,  48,  48,  48 },
+    {  64,  64,  64,  64,  64,  64,  64,  64 },
+    {  48,  48,  48,  48,  80,  80,  80,  80 },
+    {  32,  32,  32,  32,  96,  96,  96,  96 },
+    {  16,  16,  16,  16, 112, 112, 112, 112 }
+};
+
+DECLARE_ALIGNED(16, const short, vp8_bilinear_filters_x86_8[8][16]) =
+{
+    { 128, 128, 128, 128, 128, 128, 128, 128,   0,   0,   0,   0,   0,   0,   0,   0 },
+    { 112, 112, 112, 112, 112, 112, 112, 112,  16,  16,  16,  16,  16,  16,  16,  16 },
+    {  96,  96,  96,  96,  96,  96,  96,  96,  32,  32,  32,  32,  32,  32,  32,  32 },
+    {  80,  80,  80,  80,  80,  80,  80,  80,  48,  48,  48,  48,  48,  48,  48,  48 },
+    {  64,  64,  64,  64,  64,  64,  64,  64,  64,  64,  64,  64,  64,  64,  64,  64 },
+    {  48,  48,  48,  48,  48,  48,  48,  48,  80,  80,  80,  80,  80,  80,  80,  80 },
+    {  32,  32,  32,  32,  32,  32,  32,  32,  96,  96,  96,  96,  96,  96,  96,  96 },
+    {  16,  16,  16,  16,  16,  16,  16,  16, 112, 112, 112, 112, 112, 112, 112, 112 }
+};
diff --git a/media/libvpx/vp8/common/x86/filter_x86.h b/media/libvpx/vp8/common/x86/filter_x86.h
new file mode 100644
index 000000000..d282841be
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/filter_x86.h
@@ -0,0 +1,33 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_COMMON_X86_FILTER_X86_H_
+#define VP8_COMMON_X86_FILTER_X86_H_
+
+#include "vpx_ports/mem.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* x86 assembly specific copy of vp8/common/filter.c:vp8_bilinear_filters with
+ * duplicated values */
+
+/* duplicated 4x */
+extern DECLARE_ALIGNED(16, const short, vp8_bilinear_filters_x86_4[8][8]);
+
+/* duplicated 8x */
+extern DECLARE_ALIGNED(16, const short, vp8_bilinear_filters_x86_8[8][16]);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_X86_FILTER_X86_H_
diff --git a/media/libvpx/vp8/common/x86/idct_blk_mmx.c b/media/libvpx/vp8/common/x86/idct_blk_mmx.c
new file mode 100644
index 000000000..f2532b34d
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/idct_blk_mmx.c
@@ -0,0 +1,128 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vp8/common/blockd.h"
+#include "vpx_mem/vpx_mem.h"
+
+extern void vp8_dequantize_b_impl_mmx(short *sq, short *dq, short *q);
+
+void vp8_dequantize_b_mmx(BLOCKD *d, short *DQC)
+{
+    short *sq = (short *) d->qcoeff;
+    short *dq = (short *) d->dqcoeff;
+
+    vp8_dequantize_b_impl_mmx(sq, dq, DQC);
+}
+
+void vp8_dequant_idct_add_y_block_mmx
+            (short *q, short *dq,
+             unsigned char *dst, int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_mmx (q, dq, dst, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[0]*dq[0], dst, stride, dst, stride);
+            memset(q, 0, 2 * sizeof(q[0]));
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_mmx (q+16, dq, dst+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[16]*dq[0], dst+4, stride,
+                                      dst+4, stride);
+            memset(q + 16, 0, 2 * sizeof(q[0]));
+        }
+
+        if (eobs[2] > 1)
+            vp8_dequant_idct_add_mmx (q+32, dq, dst+8, stride);
+        else if (eobs[2] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[32]*dq[0], dst+8, stride,
+                                      dst+8, stride);
+            memset(q + 32, 0, 2 * sizeof(q[0]));
+        }
+
+        if (eobs[3] > 1)
+            vp8_dequant_idct_add_mmx (q+48, dq, dst+12, stride);
+        else if (eobs[3] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[48]*dq[0], dst+12, stride,
+                                      dst+12, stride);
+            memset(q + 48, 0, 2 * sizeof(q[0]));
+        }
+
+        q    += 64;
+        dst  += 4*stride;
+        eobs += 4;
+    }
+}
+
+void vp8_dequant_idct_add_uv_block_mmx
+            (short *q, short *dq,
+             unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 2; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_mmx (q, dq, dstu, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[0]*dq[0], dstu, stride, dstu, stride);
+            memset(q, 0, 2 * sizeof(q[0]));
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_mmx (q+16, dq, dstu+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[16]*dq[0], dstu+4, stride,
+                                      dstu+4, stride);
+            memset(q + 16, 0, 2 * sizeof(q[0]));
+        }
+
+        q    += 32;
+        dstu += 4*stride;
+        eobs += 2;
+    }
+
+    for (i = 0; i < 2; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_mmx (q, dq, dstv, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[0]*dq[0], dstv, stride, dstv, stride);
+            memset(q, 0, 2 * sizeof(q[0]));
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_mmx (q+16, dq, dstv+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[16]*dq[0], dstv+4, stride,
+                                      dstv+4, stride);
+            memset(q + 16, 0, 2 * sizeof(q[0]));
+        }
+
+        q    += 32;
+        dstv += 4*stride;
+        eobs += 2;
+    }
+}
diff --git a/media/libvpx/vp8/common/x86/idct_blk_sse2.c b/media/libvpx/vp8/common/x86/idct_blk_sse2.c
new file mode 100644
index 000000000..ae96ec858
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/idct_blk_sse2.c
@@ -0,0 +1,89 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+
+void vp8_idct_dequant_0_2x_sse2
+            (short *q, short *dq ,
+             unsigned char *dst, int dst_stride);
+void vp8_idct_dequant_full_2x_sse2
+            (short *q, short *dq ,
+             unsigned char *dst, int dst_stride);
+
+void vp8_dequant_idct_add_y_block_sse2
+            (short *q, short *dq,
+             unsigned char *dst, int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+    {
+        if (((short *)(eobs))[0])
+        {
+            if (((short *)(eobs))[0] & 0xfefe)
+                vp8_idct_dequant_full_2x_sse2 (q, dq, dst, stride);
+            else
+                vp8_idct_dequant_0_2x_sse2 (q, dq, dst, stride);
+        }
+        if (((short *)(eobs))[1])
+        {
+            if (((short *)(eobs))[1] & 0xfefe)
+                vp8_idct_dequant_full_2x_sse2 (q+32, dq, dst+8, stride);
+            else
+                vp8_idct_dequant_0_2x_sse2 (q+32, dq, dst+8, stride);
+        }
+        q    += 64;
+        dst  += stride*4;
+        eobs += 4;
+    }
+}
+
+void vp8_dequant_idct_add_uv_block_sse2
+            (short *q, short *dq,
+             unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
+{
+    if (((short *)(eobs))[0])
+    {
+        if (((short *)(eobs))[0] & 0xfefe)
+            vp8_idct_dequant_full_2x_sse2 (q, dq, dstu, stride);
+        else
+            vp8_idct_dequant_0_2x_sse2 (q, dq, dstu, stride);
+    }
+    q    += 32;
+    dstu += stride*4;
+
+    if (((short *)(eobs))[1])
+    {
+        if (((short *)(eobs))[1] & 0xfefe)
+            vp8_idct_dequant_full_2x_sse2 (q, dq, dstu, stride);
+        else
+            vp8_idct_dequant_0_2x_sse2 (q, dq, dstu, stride);
+    }
+    q    += 32;
+
+    if (((short *)(eobs))[2])
+    {
+        if (((short *)(eobs))[2] & 0xfefe)
+            vp8_idct_dequant_full_2x_sse2 (q, dq, dstv, stride);
+        else
+            vp8_idct_dequant_0_2x_sse2 (q, dq, dstv, stride);
+    }
+    q    += 32;
+    dstv += stride*4;
+
+    if (((short *)(eobs))[3])
+    {
+      if (((short *)(eobs))[3] & 0xfefe)
+          vp8_idct_dequant_full_2x_sse2 (q, dq, dstv, stride);
+      else
+          vp8_idct_dequant_0_2x_sse2 (q, dq, dstv, stride);
+    }
+}
diff --git a/media/libvpx/vp8/common/x86/idctllm_mmx.asm b/media/libvpx/vp8/common/x86/idctllm_mmx.asm
new file mode 100644
index 000000000..96fa2c60d
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/idctllm_mmx.asm
@@ -0,0 +1,295 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+; /****************************************************************************
+; * Notes:
+; *
+; * This implementation makes use of 16 bit fixed point version of two multiply
+; * constants:
+; *        1.   sqrt(2) * cos (pi/8)
+; *        2.   sqrt(2) * sin (pi/8)
+; * Because the first constant is bigger than 1, to maintain the same 16 bit
+; * fixed point precision as the second one, we use a trick of
+; *        x * a = x + x*(a-1)
+; * so
+; *        x * sqrt(2) * cos (pi/8) = x + x * (sqrt(2) *cos(pi/8)-1).
+; *
+; * For the second constant, because of the 16bit version is 35468, which
+; * is bigger than 32768, in signed 16 bit multiply, it becomes a negative
+; * number.
+; *        (x * (unsigned)35468 >> 16) = x * (signed)35468 >> 16 + x
+; *
+; **************************************************************************/
+
+
+;void vp8_short_idct4x4llm_mmx(short *input, unsigned char *pred,
+;int pitch, unsigned char *dest,int stride)
+global sym(vp8_short_idct4x4llm_mmx) PRIVATE
+sym(vp8_short_idct4x4llm_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    mov         rax,    arg(0)              ;input
+    mov         rsi,    arg(1)              ;pred
+
+    movq        mm0,    [rax   ]
+    movq        mm1,    [rax+ 8]
+    movq        mm2,    [rax+16]
+    movq        mm3,    [rax+24]
+
+%if 0
+    pxor        mm7,    mm7
+    movq        [rax],   mm7
+    movq        [rax+8], mm7
+    movq        [rax+16],mm7
+    movq        [rax+24],mm7
+%endif
+    movsxd      rax,    dword ptr arg(2)    ;pitch
+    mov         rdx,    arg(3)              ;dest
+    movsxd      rdi,    dword ptr arg(4)    ;stride
+
+
+    psubw       mm0,            mm2             ; b1= 0-2
+    paddw       mm2,            mm2             ;
+
+    movq        mm5,            mm1
+    paddw       mm2,            mm0             ; a1 =0+2
+
+    pmulhw      mm5,            [GLOBAL(x_s1sqr2)];
+    paddw       mm5,            mm1             ; ip1 * sin(pi/8) * sqrt(2)
+
+    movq        mm7,            mm3             ;
+    pmulhw      mm7,            [GLOBAL(x_c1sqr2less1)];
+
+    paddw       mm7,            mm3             ; ip3 * cos(pi/8) * sqrt(2)
+    psubw       mm7,            mm5             ; c1
+
+    movq        mm5,            mm1
+    movq        mm4,            mm3
+
+    pmulhw      mm5,            [GLOBAL(x_c1sqr2less1)]
+    paddw       mm5,            mm1
+
+    pmulhw      mm3,            [GLOBAL(x_s1sqr2)]
+    paddw       mm3,            mm4
+
+    paddw       mm3,            mm5             ; d1
+    movq        mm6,            mm2             ; a1
+
+    movq        mm4,            mm0             ; b1
+    paddw       mm2,            mm3             ;0
+
+    paddw       mm4,            mm7             ;1
+    psubw       mm0,            mm7             ;2
+
+    psubw       mm6,            mm3             ;3
+
+    movq        mm1,            mm2             ; 03 02 01 00
+    movq        mm3,            mm4             ; 23 22 21 20
+
+    punpcklwd   mm1,            mm0             ; 11 01 10 00
+    punpckhwd   mm2,            mm0             ; 13 03 12 02
+
+    punpcklwd   mm3,            mm6             ; 31 21 30 20
+    punpckhwd   mm4,            mm6             ; 33 23 32 22
+
+    movq        mm0,            mm1             ; 11 01 10 00
+    movq        mm5,            mm2             ; 13 03 12 02
+
+    punpckldq   mm0,            mm3             ; 30 20 10 00
+    punpckhdq   mm1,            mm3             ; 31 21 11 01
+
+    punpckldq   mm2,            mm4             ; 32 22 12 02
+    punpckhdq   mm5,            mm4             ; 33 23 13 03
+
+    movq        mm3,            mm5             ; 33 23 13 03
+
+    psubw       mm0,            mm2             ; b1= 0-2
+    paddw       mm2,            mm2             ;
+
+    movq        mm5,            mm1
+    paddw       mm2,            mm0             ; a1 =0+2
+
+    pmulhw      mm5,            [GLOBAL(x_s1sqr2)];
+    paddw       mm5,            mm1             ; ip1 * sin(pi/8) * sqrt(2)
+
+    movq        mm7,            mm3             ;
+    pmulhw      mm7,            [GLOBAL(x_c1sqr2less1)];
+
+    paddw       mm7,            mm3             ; ip3 * cos(pi/8) * sqrt(2)
+    psubw       mm7,            mm5             ; c1
+
+    movq        mm5,            mm1
+    movq        mm4,            mm3
+
+    pmulhw      mm5,            [GLOBAL(x_c1sqr2less1)]
+    paddw       mm5,            mm1
+
+    pmulhw      mm3,            [GLOBAL(x_s1sqr2)]
+    paddw       mm3,            mm4
+
+    paddw       mm3,            mm5             ; d1
+    paddw       mm0,            [GLOBAL(fours)]
+
+    paddw       mm2,            [GLOBAL(fours)]
+    movq        mm6,            mm2             ; a1
+
+    movq        mm4,            mm0             ; b1
+    paddw       mm2,            mm3             ;0
+
+    paddw       mm4,            mm7             ;1
+    psubw       mm0,            mm7             ;2
+
+    psubw       mm6,            mm3             ;3
+    psraw       mm2,            3
+
+    psraw       mm0,            3
+    psraw       mm4,            3
+
+    psraw       mm6,            3
+
+    movq        mm1,            mm2             ; 03 02 01 00
+    movq        mm3,            mm4             ; 23 22 21 20
+
+    punpcklwd   mm1,            mm0             ; 11 01 10 00
+    punpckhwd   mm2,            mm0             ; 13 03 12 02
+
+    punpcklwd   mm3,            mm6             ; 31 21 30 20
+    punpckhwd   mm4,            mm6             ; 33 23 32 22
+
+    movq        mm0,            mm1             ; 11 01 10 00
+    movq        mm5,            mm2             ; 13 03 12 02
+
+    punpckldq   mm0,            mm3             ; 30 20 10 00
+    punpckhdq   mm1,            mm3             ; 31 21 11 01
+
+    punpckldq   mm2,            mm4             ; 32 22 12 02
+    punpckhdq   mm5,            mm4             ; 33 23 13 03
+
+    pxor        mm7,            mm7
+
+    movd        mm4,            [rsi]
+    punpcklbw   mm4,            mm7
+    paddsw      mm0,            mm4
+    packuswb    mm0,            mm7
+    movd        [rdx],          mm0
+
+    movd        mm4,            [rsi+rax]
+    punpcklbw   mm4,            mm7
+    paddsw      mm1,            mm4
+    packuswb    mm1,            mm7
+    movd        [rdx+rdi],      mm1
+
+    movd        mm4,            [rsi+2*rax]
+    punpcklbw   mm4,            mm7
+    paddsw      mm2,            mm4
+    packuswb    mm2,            mm7
+    movd        [rdx+rdi*2],    mm2
+
+    add         rdx,            rdi
+    add         rsi,            rax
+
+    movd        mm4,            [rsi+2*rax]
+    punpcklbw   mm4,            mm7
+    paddsw      mm5,            mm4
+    packuswb    mm5,            mm7
+    movd        [rdx+rdi*2],    mm5
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_dc_only_idct_add_mmx(
+;short input_dc,
+;unsigned char *pred_ptr,
+;int pred_stride,
+;unsigned char *dst_ptr,
+;int stride)
+global sym(vp8_dc_only_idct_add_mmx) PRIVATE
+sym(vp8_dc_only_idct_add_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    ; end prolog
+
+        movd        mm5,            arg(0) ;input_dc
+        mov         rax,            arg(1) ;pred_ptr
+        movsxd      rdx,            dword ptr arg(2) ;pred_stride
+
+        pxor        mm0,            mm0
+
+        paddw       mm5,            [GLOBAL(fours)]
+        lea         rcx,            [rdx + rdx*2]
+
+        psraw       mm5,            3
+
+        punpcklwd   mm5,            mm5
+
+        punpckldq   mm5,            mm5
+
+        movd        mm1,            [rax]
+        movd        mm2,            [rax+rdx]
+        movd        mm3,            [rax+2*rdx]
+        movd        mm4,            [rax+rcx]
+
+        mov         rax,            arg(3) ;d -- destination
+        movsxd      rdx,            dword ptr arg(4) ;dst_stride
+
+        punpcklbw   mm1,            mm0
+        paddsw      mm1,            mm5
+        packuswb    mm1,            mm0              ; pack and unpack to saturate
+        lea         rcx,            [rdx + rdx*2]
+
+        punpcklbw   mm2,            mm0
+        paddsw      mm2,            mm5
+        packuswb    mm2,            mm0              ; pack and unpack to saturate
+
+        punpcklbw   mm3,            mm0
+        paddsw      mm3,            mm5
+        packuswb    mm3,            mm0              ; pack and unpack to saturate
+
+        punpcklbw   mm4,            mm0
+        paddsw      mm4,            mm5
+        packuswb    mm4,            mm0              ; pack and unpack to saturate
+
+        movd        [rax],          mm1
+        movd        [rax+rdx],      mm2
+        movd        [rax+2*rdx],    mm3
+        movd        [rax+rcx],      mm4
+
+    ; begin epilog
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+x_s1sqr2:
+    times 4 dw 0x8A8C
+align 16
+x_c1sqr2less1:
+    times 4 dw 0x4E7B
+align 16
+fours:
+    times 4 dw 0x0004
diff --git a/media/libvpx/vp8/common/x86/idctllm_sse2.asm b/media/libvpx/vp8/common/x86/idctllm_sse2.asm
new file mode 100644
index 000000000..bf8e2c402
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/idctllm_sse2.asm
@@ -0,0 +1,708 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_idct_dequant_0_2x_sse2
+; (
+;   short *qcoeff       - 0
+;   short *dequant      - 1
+;   unsigned char *dst  - 2
+;   int dst_stride      - 3
+; )
+
+global sym(vp8_idct_dequant_0_2x_sse2) PRIVATE
+sym(vp8_idct_dequant_0_2x_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    GET_GOT     rbx
+    ; end prolog
+
+        mov         rdx,            arg(1) ; dequant
+        mov         rax,            arg(0) ; qcoeff
+
+        movd        xmm4,           [rax]
+        movd        xmm5,           [rdx]
+
+        pinsrw      xmm4,           [rax+32],   4
+        pinsrw      xmm5,           [rdx],      4
+
+        pmullw      xmm4,           xmm5
+
+    ; Zero out xmm5, for use unpacking
+        pxor        xmm5,           xmm5
+
+    ; clear coeffs
+        movd        [rax],          xmm5
+        movd        [rax+32],       xmm5
+;pshufb
+        mov         rax,            arg(2) ; dst
+        movsxd      rdx,            dword ptr arg(3) ; dst_stride
+
+        pshuflw     xmm4,           xmm4,       00000000b
+        pshufhw     xmm4,           xmm4,       00000000b
+
+        lea         rcx,            [rdx + rdx*2]
+        paddw       xmm4,           [GLOBAL(fours)]
+
+        psraw       xmm4,           3
+
+        movq        xmm0,           [rax]
+        movq        xmm1,           [rax+rdx]
+        movq        xmm2,           [rax+2*rdx]
+        movq        xmm3,           [rax+rcx]
+
+        punpcklbw   xmm0,           xmm5
+        punpcklbw   xmm1,           xmm5
+        punpcklbw   xmm2,           xmm5
+        punpcklbw   xmm3,           xmm5
+
+
+    ; Add to predict buffer
+        paddw       xmm0,           xmm4
+        paddw       xmm1,           xmm4
+        paddw       xmm2,           xmm4
+        paddw       xmm3,           xmm4
+
+    ; pack up before storing
+        packuswb    xmm0,           xmm5
+        packuswb    xmm1,           xmm5
+        packuswb    xmm2,           xmm5
+        packuswb    xmm3,           xmm5
+
+    ; store blocks back out
+        movq        [rax],          xmm0
+        movq        [rax + rdx],    xmm1
+
+        lea         rax,            [rax + 2*rdx]
+
+        movq        [rax],          xmm2
+        movq        [rax + rdx],    xmm3
+
+    ; begin epilog
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_idct_dequant_full_2x_sse2
+; (
+;   short *qcoeff       - 0
+;   short *dequant      - 1
+;   unsigned char *dst  - 2
+;   int dst_stride      - 3
+; )
+global sym(vp8_idct_dequant_full_2x_sse2) PRIVATE
+sym(vp8_idct_dequant_full_2x_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ; special case when 2 blocks have 0 or 1 coeffs
+    ; dc is set as first coeff, so no need to load qcoeff
+        mov         rax,            arg(0) ; qcoeff
+        mov         rdx,            arg(1)  ; dequant
+        mov         rdi,            arg(2) ; dst
+
+
+    ; Zero out xmm7, for use unpacking
+        pxor        xmm7,           xmm7
+
+
+    ; note the transpose of xmm1 and xmm2, necessary for shuffle
+    ;   to spit out sensicle data
+        movdqa      xmm0,           [rax]
+        movdqa      xmm2,           [rax+16]
+        movdqa      xmm1,           [rax+32]
+        movdqa      xmm3,           [rax+48]
+
+    ; Clear out coeffs
+        movdqa      [rax],          xmm7
+        movdqa      [rax+16],       xmm7
+        movdqa      [rax+32],       xmm7
+        movdqa      [rax+48],       xmm7
+
+    ; dequantize qcoeff buffer
+        pmullw      xmm0,           [rdx]
+        pmullw      xmm2,           [rdx+16]
+        pmullw      xmm1,           [rdx]
+        pmullw      xmm3,           [rdx+16]
+        movsxd      rdx,            dword ptr arg(3) ; dst_stride
+
+    ; repack so block 0 row x and block 1 row x are together
+        movdqa      xmm4,           xmm0
+        punpckldq   xmm0,           xmm1
+        punpckhdq   xmm4,           xmm1
+
+        pshufd      xmm0,           xmm0,       11011000b
+        pshufd      xmm1,           xmm4,       11011000b
+
+        movdqa      xmm4,           xmm2
+        punpckldq   xmm2,           xmm3
+        punpckhdq   xmm4,           xmm3
+
+        pshufd      xmm2,           xmm2,       11011000b
+        pshufd      xmm3,           xmm4,       11011000b
+
+    ; first pass
+        psubw       xmm0,           xmm2        ; b1 = 0-2
+        paddw       xmm2,           xmm2        ;
+
+        movdqa      xmm5,           xmm1
+        paddw       xmm2,           xmm0        ; a1 = 0+2
+
+        pmulhw      xmm5,           [GLOBAL(x_s1sqr2)]
+        lea         rcx,            [rdx + rdx*2]   ;dst_stride * 3
+        paddw       xmm5,           xmm1        ; ip1 * sin(pi/8) * sqrt(2)
+
+        movdqa      xmm7,           xmm3
+        pmulhw      xmm7,           [GLOBAL(x_c1sqr2less1)]
+
+        paddw       xmm7,           xmm3        ; ip3 * cos(pi/8) * sqrt(2)
+        psubw       xmm7,           xmm5        ; c1
+
+        movdqa      xmm5,           xmm1
+        movdqa      xmm4,           xmm3
+
+        pmulhw      xmm5,           [GLOBAL(x_c1sqr2less1)]
+        paddw       xmm5,           xmm1
+
+        pmulhw      xmm3,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm3,           xmm4
+
+        paddw       xmm3,           xmm5        ; d1
+        movdqa      xmm6,           xmm2        ; a1
+
+        movdqa      xmm4,           xmm0        ; b1
+        paddw       xmm2,           xmm3        ;0
+
+        paddw       xmm4,           xmm7        ;1
+        psubw       xmm0,           xmm7        ;2
+
+        psubw       xmm6,           xmm3        ;3
+
+    ; transpose for the second pass
+        movdqa      xmm7,           xmm2        ; 103 102 101 100 003 002 001 000
+        punpcklwd   xmm2,           xmm0        ; 007 003 006 002 005 001 004 000
+        punpckhwd   xmm7,           xmm0        ; 107 103 106 102 105 101 104 100
+
+        movdqa      xmm5,           xmm4        ; 111 110 109 108 011 010 009 008
+        punpcklwd   xmm4,           xmm6        ; 015 011 014 010 013 009 012 008
+        punpckhwd   xmm5,           xmm6        ; 115 111 114 110 113 109 112 108
+
+
+        movdqa      xmm1,           xmm2        ; 007 003 006 002 005 001 004 000
+        punpckldq   xmm2,           xmm4        ; 013 009 005 001 012 008 004 000
+        punpckhdq   xmm1,           xmm4        ; 015 011 007 003 014 010 006 002
+
+        movdqa      xmm6,           xmm7        ; 107 103 106 102 105 101 104 100
+        punpckldq   xmm7,           xmm5        ; 113 109 105 101 112 108 104 100
+        punpckhdq   xmm6,           xmm5        ; 115 111 107 103 114 110 106 102
+
+
+        movdqa      xmm5,           xmm2        ; 013 009 005 001 012 008 004 000
+        punpckldq   xmm2,           xmm7        ; 112 108 012 008 104 100 004 000
+        punpckhdq   xmm5,           xmm7        ; 113 109 013 009 105 101 005 001
+
+        movdqa      xmm7,           xmm1        ; 015 011 007 003 014 010 006 002
+        punpckldq   xmm1,           xmm6        ; 114 110 014 010 106 102 006 002
+        punpckhdq   xmm7,           xmm6        ; 115 111 015 011 107 103 007 003
+
+        pshufd      xmm0,           xmm2,       11011000b
+        pshufd      xmm2,           xmm1,       11011000b
+
+        pshufd      xmm1,           xmm5,       11011000b
+        pshufd      xmm3,           xmm7,       11011000b
+
+    ; second pass
+        psubw       xmm0,           xmm2            ; b1 = 0-2
+        paddw       xmm2,           xmm2
+
+        movdqa      xmm5,           xmm1
+        paddw       xmm2,           xmm0            ; a1 = 0+2
+
+        pmulhw      xmm5,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm5,           xmm1            ; ip1 * sin(pi/8) * sqrt(2)
+
+        movdqa      xmm7,           xmm3
+        pmulhw      xmm7,           [GLOBAL(x_c1sqr2less1)]
+
+        paddw       xmm7,           xmm3            ; ip3 * cos(pi/8) * sqrt(2)
+        psubw       xmm7,           xmm5            ; c1
+
+        movdqa      xmm5,           xmm1
+        movdqa      xmm4,           xmm3
+
+        pmulhw      xmm5,           [GLOBAL(x_c1sqr2less1)]
+        paddw       xmm5,           xmm1
+
+        pmulhw      xmm3,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm3,           xmm4
+
+        paddw       xmm3,           xmm5            ; d1
+        paddw       xmm0,           [GLOBAL(fours)]
+
+        paddw       xmm2,           [GLOBAL(fours)]
+        movdqa      xmm6,           xmm2            ; a1
+
+        movdqa      xmm4,           xmm0            ; b1
+        paddw       xmm2,           xmm3            ;0
+
+        paddw       xmm4,           xmm7            ;1
+        psubw       xmm0,           xmm7            ;2
+
+        psubw       xmm6,           xmm3            ;3
+        psraw       xmm2,           3
+
+        psraw       xmm0,           3
+        psraw       xmm4,           3
+
+        psraw       xmm6,           3
+
+    ; transpose to save
+        movdqa      xmm7,           xmm2        ; 103 102 101 100 003 002 001 000
+        punpcklwd   xmm2,           xmm0        ; 007 003 006 002 005 001 004 000
+        punpckhwd   xmm7,           xmm0        ; 107 103 106 102 105 101 104 100
+
+        movdqa      xmm5,           xmm4        ; 111 110 109 108 011 010 009 008
+        punpcklwd   xmm4,           xmm6        ; 015 011 014 010 013 009 012 008
+        punpckhwd   xmm5,           xmm6        ; 115 111 114 110 113 109 112 108
+
+
+        movdqa      xmm1,           xmm2        ; 007 003 006 002 005 001 004 000
+        punpckldq   xmm2,           xmm4        ; 013 009 005 001 012 008 004 000
+        punpckhdq   xmm1,           xmm4        ; 015 011 007 003 014 010 006 002
+
+        movdqa      xmm6,           xmm7        ; 107 103 106 102 105 101 104 100
+        punpckldq   xmm7,           xmm5        ; 113 109 105 101 112 108 104 100
+        punpckhdq   xmm6,           xmm5        ; 115 111 107 103 114 110 106 102
+
+
+        movdqa      xmm5,           xmm2        ; 013 009 005 001 012 008 004 000
+        punpckldq   xmm2,           xmm7        ; 112 108 012 008 104 100 004 000
+        punpckhdq   xmm5,           xmm7        ; 113 109 013 009 105 101 005 001
+
+        movdqa      xmm7,           xmm1        ; 015 011 007 003 014 010 006 002
+        punpckldq   xmm1,           xmm6        ; 114 110 014 010 106 102 006 002
+        punpckhdq   xmm7,           xmm6        ; 115 111 015 011 107 103 007 003
+
+        pshufd      xmm0,           xmm2,       11011000b
+        pshufd      xmm2,           xmm1,       11011000b
+
+        pshufd      xmm1,           xmm5,       11011000b
+        pshufd      xmm3,           xmm7,       11011000b
+
+        pxor        xmm7,           xmm7
+
+    ; Load up predict blocks
+        movq        xmm4,           [rdi]
+        movq        xmm5,           [rdi+rdx]
+
+        punpcklbw   xmm4,           xmm7
+        punpcklbw   xmm5,           xmm7
+
+        paddw       xmm0,           xmm4
+        paddw       xmm1,           xmm5
+
+        movq        xmm4,           [rdi+2*rdx]
+        movq        xmm5,           [rdi+rcx]
+
+        punpcklbw   xmm4,           xmm7
+        punpcklbw   xmm5,           xmm7
+
+        paddw       xmm2,           xmm4
+        paddw       xmm3,           xmm5
+
+.finish:
+
+    ; pack up before storing
+        packuswb    xmm0,           xmm7
+        packuswb    xmm1,           xmm7
+        packuswb    xmm2,           xmm7
+        packuswb    xmm3,           xmm7
+
+    ; store blocks back out
+        movq        [rdi],          xmm0
+        movq        [rdi + rdx],    xmm1
+        movq        [rdi + rdx*2],  xmm2
+        movq        [rdi + rcx],    xmm3
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_idct_dequant_dc_0_2x_sse2
+; (
+;   short *qcoeff       - 0
+;   short *dequant      - 1
+;   unsigned char *dst  - 2
+;   int dst_stride      - 3
+;   short *dc           - 4
+; )
+global sym(vp8_idct_dequant_dc_0_2x_sse2) PRIVATE
+sym(vp8_idct_dequant_dc_0_2x_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rdi
+    ; end prolog
+
+    ; special case when 2 blocks have 0 or 1 coeffs
+    ; dc is set as first coeff, so no need to load qcoeff
+        mov         rax,            arg(0) ; qcoeff
+
+        mov         rdi,            arg(2) ; dst
+        mov         rdx,            arg(4) ; dc
+
+    ; Zero out xmm5, for use unpacking
+        pxor        xmm5,           xmm5
+
+    ; load up 2 dc words here == 2*16 = doubleword
+        movd        xmm4,           [rdx]
+
+        movsxd      rdx,            dword ptr arg(3) ; dst_stride
+        lea         rcx, [rdx + rdx*2]
+    ; Load up predict blocks
+        movq        xmm0,           [rdi]
+        movq        xmm1,           [rdi+rdx*1]
+        movq        xmm2,           [rdi+rdx*2]
+        movq        xmm3,           [rdi+rcx]
+
+    ; Duplicate and expand dc across
+        punpcklwd   xmm4,           xmm4
+        punpckldq   xmm4,           xmm4
+
+    ; Rounding to dequant and downshift
+        paddw       xmm4,           [GLOBAL(fours)]
+        psraw       xmm4,           3
+
+    ; Predict buffer needs to be expanded from bytes to words
+        punpcklbw   xmm0,           xmm5
+        punpcklbw   xmm1,           xmm5
+        punpcklbw   xmm2,           xmm5
+        punpcklbw   xmm3,           xmm5
+
+    ; Add to predict buffer
+        paddw       xmm0,           xmm4
+        paddw       xmm1,           xmm4
+        paddw       xmm2,           xmm4
+        paddw       xmm3,           xmm4
+
+    ; pack up before storing
+        packuswb    xmm0,           xmm5
+        packuswb    xmm1,           xmm5
+        packuswb    xmm2,           xmm5
+        packuswb    xmm3,           xmm5
+
+    ; store blocks back out
+        movq        [rdi],          xmm0
+        movq        [rdi + rdx],    xmm1
+        movq        [rdi + rdx*2],  xmm2
+        movq        [rdi + rcx],    xmm3
+
+    ; begin epilog
+    pop         rdi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+;void vp8_idct_dequant_dc_full_2x_sse2
+; (
+;   short *qcoeff       - 0
+;   short *dequant      - 1
+;   unsigned char *dst  - 2
+;   int dst_stride      - 3
+;   short *dc           - 4
+; )
+global sym(vp8_idct_dequant_dc_full_2x_sse2) PRIVATE
+sym(vp8_idct_dequant_dc_full_2x_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rdi
+    ; end prolog
+
+    ; special case when 2 blocks have 0 or 1 coeffs
+    ; dc is set as first coeff, so no need to load qcoeff
+        mov         rax,            arg(0) ; qcoeff
+        mov         rdx,            arg(1)  ; dequant
+
+        mov         rdi,            arg(2) ; dst
+
+    ; Zero out xmm7, for use unpacking
+        pxor        xmm7,           xmm7
+
+
+    ; note the transpose of xmm1 and xmm2, necessary for shuffle
+    ;   to spit out sensicle data
+        movdqa      xmm0,           [rax]
+        movdqa      xmm2,           [rax+16]
+        movdqa      xmm1,           [rax+32]
+        movdqa      xmm3,           [rax+48]
+
+    ; Clear out coeffs
+        movdqa      [rax],          xmm7
+        movdqa      [rax+16],       xmm7
+        movdqa      [rax+32],       xmm7
+        movdqa      [rax+48],       xmm7
+
+    ; dequantize qcoeff buffer
+        pmullw      xmm0,           [rdx]
+        pmullw      xmm2,           [rdx+16]
+        pmullw      xmm1,           [rdx]
+        pmullw      xmm3,           [rdx+16]
+
+    ; DC component
+        mov         rdx,            arg(4)
+
+    ; repack so block 0 row x and block 1 row x are together
+        movdqa      xmm4,           xmm0
+        punpckldq   xmm0,           xmm1
+        punpckhdq   xmm4,           xmm1
+
+        pshufd      xmm0,           xmm0,       11011000b
+        pshufd      xmm1,           xmm4,       11011000b
+
+        movdqa      xmm4,           xmm2
+        punpckldq   xmm2,           xmm3
+        punpckhdq   xmm4,           xmm3
+
+        pshufd      xmm2,           xmm2,       11011000b
+        pshufd      xmm3,           xmm4,       11011000b
+
+    ; insert DC component
+        pinsrw      xmm0,           [rdx],      0
+        pinsrw      xmm0,           [rdx+2],    4
+
+    ; first pass
+        psubw       xmm0,           xmm2        ; b1 = 0-2
+        paddw       xmm2,           xmm2        ;
+
+        movdqa      xmm5,           xmm1
+        paddw       xmm2,           xmm0        ; a1 = 0+2
+
+        pmulhw      xmm5,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm5,           xmm1        ; ip1 * sin(pi/8) * sqrt(2)
+
+        movdqa      xmm7,           xmm3
+        pmulhw      xmm7,           [GLOBAL(x_c1sqr2less1)]
+
+        paddw       xmm7,           xmm3        ; ip3 * cos(pi/8) * sqrt(2)
+        psubw       xmm7,           xmm5        ; c1
+
+        movdqa      xmm5,           xmm1
+        movdqa      xmm4,           xmm3
+
+        pmulhw      xmm5,           [GLOBAL(x_c1sqr2less1)]
+        paddw       xmm5,           xmm1
+
+        pmulhw      xmm3,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm3,           xmm4
+
+        paddw       xmm3,           xmm5        ; d1
+        movdqa      xmm6,           xmm2        ; a1
+
+        movdqa      xmm4,           xmm0        ; b1
+        paddw       xmm2,           xmm3        ;0
+
+        paddw       xmm4,           xmm7        ;1
+        psubw       xmm0,           xmm7        ;2
+
+        psubw       xmm6,           xmm3        ;3
+
+    ; transpose for the second pass
+        movdqa      xmm7,           xmm2        ; 103 102 101 100 003 002 001 000
+        punpcklwd   xmm2,           xmm0        ; 007 003 006 002 005 001 004 000
+        punpckhwd   xmm7,           xmm0        ; 107 103 106 102 105 101 104 100
+
+        movdqa      xmm5,           xmm4        ; 111 110 109 108 011 010 009 008
+        punpcklwd   xmm4,           xmm6        ; 015 011 014 010 013 009 012 008
+        punpckhwd   xmm5,           xmm6        ; 115 111 114 110 113 109 112 108
+
+
+        movdqa      xmm1,           xmm2        ; 007 003 006 002 005 001 004 000
+        punpckldq   xmm2,           xmm4        ; 013 009 005 001 012 008 004 000
+        punpckhdq   xmm1,           xmm4        ; 015 011 007 003 014 010 006 002
+
+        movdqa      xmm6,           xmm7        ; 107 103 106 102 105 101 104 100
+        punpckldq   xmm7,           xmm5        ; 113 109 105 101 112 108 104 100
+        punpckhdq   xmm6,           xmm5        ; 115 111 107 103 114 110 106 102
+
+
+        movdqa      xmm5,           xmm2        ; 013 009 005 001 012 008 004 000
+        punpckldq   xmm2,           xmm7        ; 112 108 012 008 104 100 004 000
+        punpckhdq   xmm5,           xmm7        ; 113 109 013 009 105 101 005 001
+
+        movdqa      xmm7,           xmm1        ; 015 011 007 003 014 010 006 002
+        punpckldq   xmm1,           xmm6        ; 114 110 014 010 106 102 006 002
+        punpckhdq   xmm7,           xmm6        ; 115 111 015 011 107 103 007 003
+
+        pshufd      xmm0,           xmm2,       11011000b
+        pshufd      xmm2,           xmm1,       11011000b
+
+        pshufd      xmm1,           xmm5,       11011000b
+        pshufd      xmm3,           xmm7,       11011000b
+
+    ; second pass
+        psubw       xmm0,           xmm2            ; b1 = 0-2
+        paddw       xmm2,           xmm2
+
+        movdqa      xmm5,           xmm1
+        paddw       xmm2,           xmm0            ; a1 = 0+2
+
+        pmulhw      xmm5,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm5,           xmm1            ; ip1 * sin(pi/8) * sqrt(2)
+
+        movdqa      xmm7,           xmm3
+        pmulhw      xmm7,           [GLOBAL(x_c1sqr2less1)]
+
+        paddw       xmm7,           xmm3            ; ip3 * cos(pi/8) * sqrt(2)
+        psubw       xmm7,           xmm5            ; c1
+
+        movdqa      xmm5,           xmm1
+        movdqa      xmm4,           xmm3
+
+        pmulhw      xmm5,           [GLOBAL(x_c1sqr2less1)]
+        paddw       xmm5,           xmm1
+
+        pmulhw      xmm3,           [GLOBAL(x_s1sqr2)]
+        paddw       xmm3,           xmm4
+
+        paddw       xmm3,           xmm5            ; d1
+        paddw       xmm0,           [GLOBAL(fours)]
+
+        paddw       xmm2,           [GLOBAL(fours)]
+        movdqa      xmm6,           xmm2            ; a1
+
+        movdqa      xmm4,           xmm0            ; b1
+        paddw       xmm2,           xmm3            ;0
+
+        paddw       xmm4,           xmm7            ;1
+        psubw       xmm0,           xmm7            ;2
+
+        psubw       xmm6,           xmm3            ;3
+        psraw       xmm2,           3
+
+        psraw       xmm0,           3
+        psraw       xmm4,           3
+
+        psraw       xmm6,           3
+
+    ; transpose to save
+        movdqa      xmm7,           xmm2        ; 103 102 101 100 003 002 001 000
+        punpcklwd   xmm2,           xmm0        ; 007 003 006 002 005 001 004 000
+        punpckhwd   xmm7,           xmm0        ; 107 103 106 102 105 101 104 100
+
+        movdqa      xmm5,           xmm4        ; 111 110 109 108 011 010 009 008
+        punpcklwd   xmm4,           xmm6        ; 015 011 014 010 013 009 012 008
+        punpckhwd   xmm5,           xmm6        ; 115 111 114 110 113 109 112 108
+
+
+        movdqa      xmm1,           xmm2        ; 007 003 006 002 005 001 004 000
+        punpckldq   xmm2,           xmm4        ; 013 009 005 001 012 008 004 000
+        punpckhdq   xmm1,           xmm4        ; 015 011 007 003 014 010 006 002
+
+        movdqa      xmm6,           xmm7        ; 107 103 106 102 105 101 104 100
+        punpckldq   xmm7,           xmm5        ; 113 109 105 101 112 108 104 100
+        punpckhdq   xmm6,           xmm5        ; 115 111 107 103 114 110 106 102
+
+
+        movdqa      xmm5,           xmm2        ; 013 009 005 001 012 008 004 000
+        punpckldq   xmm2,           xmm7        ; 112 108 012 008 104 100 004 000
+        punpckhdq   xmm5,           xmm7        ; 113 109 013 009 105 101 005 001
+
+        movdqa      xmm7,           xmm1        ; 015 011 007 003 014 010 006 002
+        punpckldq   xmm1,           xmm6        ; 114 110 014 010 106 102 006 002
+        punpckhdq   xmm7,           xmm6        ; 115 111 015 011 107 103 007 003
+
+        pshufd      xmm0,           xmm2,       11011000b
+        pshufd      xmm2,           xmm1,       11011000b
+
+        pshufd      xmm1,           xmm5,       11011000b
+        pshufd      xmm3,           xmm7,       11011000b
+
+        pxor        xmm7,           xmm7
+
+    ; Load up predict blocks
+        movsxd      rdx,            dword ptr arg(3) ; dst_stride
+        movq        xmm4,           [rdi]
+        movq        xmm5,           [rdi+rdx]
+        lea         rcx,            [rdx + rdx*2]
+
+        punpcklbw   xmm4,           xmm7
+        punpcklbw   xmm5,           xmm7
+
+        paddw       xmm0,           xmm4
+        paddw       xmm1,           xmm5
+
+        movq        xmm4,           [rdi+rdx*2]
+        movq        xmm5,           [rdi+rcx]
+
+        punpcklbw   xmm4,           xmm7
+        punpcklbw   xmm5,           xmm7
+
+        paddw       xmm2,           xmm4
+        paddw       xmm3,           xmm5
+
+.finish:
+
+    ; pack up before storing
+        packuswb    xmm0,           xmm7
+        packuswb    xmm1,           xmm7
+        packuswb    xmm2,           xmm7
+        packuswb    xmm3,           xmm7
+
+    ; Load destination stride before writing out,
+    ;   doesn't need to persist
+        movsxd      rdx,            dword ptr arg(3) ; dst_stride
+
+    ; store blocks back out
+        movq        [rdi],          xmm0
+        movq        [rdi + rdx],    xmm1
+
+        lea         rdi,            [rdi + 2*rdx]
+
+        movq        [rdi],          xmm2
+        movq        [rdi + rdx],    xmm3
+
+
+    ; begin epilog
+    pop         rdi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+fours:
+    times 8 dw 0x0004
+align 16
+x_s1sqr2:
+    times 8 dw 0x8A8C
+align 16
+x_c1sqr2less1:
+    times 8 dw 0x4E7B
diff --git a/media/libvpx/vp8/common/x86/iwalsh_mmx.asm b/media/libvpx/vp8/common/x86/iwalsh_mmx.asm
new file mode 100644
index 000000000..158c3b745
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/iwalsh_mmx.asm
@@ -0,0 +1,140 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_short_inv_walsh4x4_mmx(short *input, short *output)
+global sym(vp8_short_inv_walsh4x4_mmx) PRIVATE
+sym(vp8_short_inv_walsh4x4_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 2
+    ; end prolog
+
+    mov         rdx, arg(0)
+    mov         rax, 30003h
+
+    movq        mm0, [rdx + 0]    ;ip[0]
+    movq        mm1, [rdx + 8]    ;ip[4]
+    movq        mm7, rax
+
+    movq        mm2, [rdx + 16]   ;ip[8]
+    movq        mm3, [rdx + 24]   ;ip[12]
+    punpcklwd   mm7, mm7          ;0003000300030003h
+    mov         rdx, arg(1)
+
+    movq        mm4, mm0
+    movq        mm5, mm1
+
+    paddw       mm4, mm3          ;ip[0] + ip[12] aka al
+    paddw       mm5, mm2          ;ip[4] + ip[8] aka bl
+
+    movq        mm6, mm4          ;temp al
+    paddw       mm4, mm5          ;al + bl
+    psubw       mm6, mm5          ;al - bl
+
+    psubw       mm0, mm3          ;ip[0] - ip[12] aka d1
+    psubw       mm1, mm2          ;ip[4] - ip[8] aka c1
+
+    movq        mm5, mm0          ;temp dl
+    paddw       mm0, mm1          ;dl + cl
+    psubw       mm5, mm1          ;dl - cl
+
+    ; 03 02 01 00
+    ; 13 12 11 10
+    ; 23 22 21 20
+    ; 33 32 31 30
+
+    movq        mm3, mm4          ; 03 02 01 00
+    punpcklwd   mm4, mm0          ; 11 01 10 00
+    punpckhwd   mm3, mm0          ; 13 03 12 02
+
+    movq        mm1, mm6          ; 23 22 21 20
+    punpcklwd   mm6, mm5          ; 31 21 30 20
+    punpckhwd   mm1, mm5          ; 33 23 32 22
+
+    movq        mm0, mm4          ; 11 01 10 00
+    movq        mm2, mm3          ; 13 03 12 02
+
+    punpckldq   mm0, mm6          ; 30 20 10 00 aka ip[0]
+    punpckhdq   mm4, mm6          ; 31 21 11 01 aka ip[4]
+
+    punpckldq   mm2, mm1          ; 32 22 12 02 aka ip[8]
+    punpckhdq   mm3, mm1          ; 33 23 13 03 aka ip[12]
+;~~~~~~~~~~~~~~~~~~~~~
+    movq        mm1, mm0
+    movq        mm5, mm4
+    paddw       mm1, mm3          ;ip[0] + ip[12] aka al
+    paddw       mm5, mm2          ;ip[4] + ip[8] aka bl
+
+    movq        mm6, mm1          ;temp al
+    paddw       mm1, mm5          ;al + bl
+    psubw       mm6, mm5          ;al - bl
+    paddw       mm1, mm7
+    paddw       mm6, mm7
+    psraw       mm1, 3
+    psraw       mm6, 3
+
+    psubw       mm0, mm3          ;ip[0] - ip[12] aka d1
+    psubw       mm4, mm2          ;ip[4] - ip[8] aka c1
+
+    movq        mm5, mm0          ;temp dl
+    paddw       mm0, mm4          ;dl + cl
+    psubw       mm5, mm4          ;dl - cl
+    paddw       mm0, mm7
+    paddw       mm5, mm7
+    psraw       mm0, 3
+    psraw       mm5, 3
+;~~~~~~~~~~~~~~~~~~~~~
+
+    movd        eax, mm1
+    movd        ecx, mm0
+    psrlq       mm0, 32
+    psrlq       mm1, 32
+    mov         word ptr[rdx+32*0], ax
+    mov         word ptr[rdx+32*1], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*4], ax
+    mov         word ptr[rdx+32*5], cx
+    movd        eax, mm1
+    movd        ecx, mm0
+    mov         word ptr[rdx+32*8], ax
+    mov         word ptr[rdx+32*9], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*12], ax
+    mov         word ptr[rdx+32*13], cx
+
+    movd        eax, mm6
+    movd        ecx, mm5
+    psrlq       mm5, 32
+    psrlq       mm6, 32
+    mov         word ptr[rdx+32*2], ax
+    mov         word ptr[rdx+32*3], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*6], ax
+    mov         word ptr[rdx+32*7], cx
+    movd        eax, mm6
+    movd        ecx, mm5
+    mov         word ptr[rdx+32*10], ax
+    mov         word ptr[rdx+32*11], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*14], ax
+    mov         word ptr[rdx+32*15], cx
+
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
diff --git a/media/libvpx/vp8/common/x86/iwalsh_sse2.asm b/media/libvpx/vp8/common/x86/iwalsh_sse2.asm
new file mode 100644
index 000000000..06e86a80b
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/iwalsh_sse2.asm
@@ -0,0 +1,121 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_short_inv_walsh4x4_sse2(short *input, short *output)
+global sym(vp8_short_inv_walsh4x4_sse2) PRIVATE
+sym(vp8_short_inv_walsh4x4_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 2
+    ; end prolog
+
+    mov         rcx, arg(0)
+    mov         rdx, arg(1)
+    mov         rax, 30003h
+
+    movdqa      xmm0, [rcx + 0]     ;ip[4] ip[0]
+    movdqa      xmm1, [rcx + 16]    ;ip[12] ip[8]
+
+
+    pshufd      xmm2, xmm1, 4eh     ;ip[8] ip[12]
+    movdqa      xmm3, xmm0          ;ip[4] ip[0]
+
+    paddw       xmm0, xmm2          ;ip[4]+ip[8] ip[0]+ip[12] aka b1 a1
+    psubw       xmm3, xmm2          ;ip[4]-ip[8] ip[0]-ip[12] aka c1 d1
+
+    movdqa      xmm4, xmm0
+    punpcklqdq  xmm0, xmm3          ;d1 a1
+    punpckhqdq  xmm4, xmm3          ;c1 b1
+
+    movdqa      xmm1, xmm4          ;c1 b1
+    paddw       xmm4, xmm0          ;dl+cl a1+b1 aka op[4] op[0]
+    psubw       xmm0, xmm1          ;d1-c1 a1-b1 aka op[12] op[8]
+
+    ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    ; 13 12 11 10 03 02 01 00
+    ;
+    ; 33 32 31 30 23 22 21 20
+    ;
+    movdqa      xmm3, xmm4          ; 13 12 11 10 03 02 01 00
+    punpcklwd   xmm4, xmm0          ; 23 03 22 02 21 01 20 00
+    punpckhwd   xmm3, xmm0          ; 33 13 32 12 31 11 30 10
+    movdqa      xmm1, xmm4          ; 23 03 22 02 21 01 20 00
+    punpcklwd   xmm4, xmm3          ; 31 21 11 01 30 20 10 00
+    punpckhwd   xmm1, xmm3          ; 33 23 13 03 32 22 12 02
+    ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    movd        xmm0, eax
+    pshufd      xmm2, xmm1, 4eh     ;ip[8] ip[12]
+    movdqa      xmm3, xmm4          ;ip[4] ip[0]
+
+    pshufd      xmm0, xmm0, 0       ;03 03 03 03 03 03 03 03
+
+    paddw       xmm4, xmm2          ;ip[4]+ip[8] ip[0]+ip[12] aka b1 a1
+    psubw       xmm3, xmm2          ;ip[4]-ip[8] ip[0]-ip[12] aka c1 d1
+
+    movdqa      xmm5, xmm4
+    punpcklqdq  xmm4, xmm3          ;d1 a1
+    punpckhqdq  xmm5, xmm3          ;c1 b1
+
+    movdqa      xmm1, xmm5          ;c1 b1
+    paddw       xmm5, xmm4          ;dl+cl a1+b1 aka op[4] op[0]
+    psubw       xmm4, xmm1          ;d1-c1 a1-b1 aka op[12] op[8]
+
+    paddw       xmm5, xmm0
+    paddw       xmm4, xmm0
+    psraw       xmm5, 3
+    psraw       xmm4, 3
+
+    movd        eax, xmm5
+    movd        ecx, xmm4
+    psrldq      xmm5, 4
+    psrldq      xmm4, 4
+    mov         word ptr[rdx+32*0], ax
+    mov         word ptr[rdx+32*2], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*4], ax
+    mov         word ptr[rdx+32*6], cx
+    movd        eax, xmm5
+    movd        ecx, xmm4
+    psrldq      xmm5, 4
+    psrldq      xmm4, 4
+    mov         word ptr[rdx+32*8], ax
+    mov         word ptr[rdx+32*10], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*12], ax
+    mov         word ptr[rdx+32*14], cx
+
+    movd        eax, xmm5
+    movd        ecx, xmm4
+    psrldq      xmm5, 4
+    psrldq      xmm4, 4
+    mov         word ptr[rdx+32*1], ax
+    mov         word ptr[rdx+32*3], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*5], ax
+    mov         word ptr[rdx+32*7], cx
+    movd        eax, xmm5
+    movd        ecx, xmm4
+    mov         word ptr[rdx+32*9], ax
+    mov         word ptr[rdx+32*11], cx
+    shr         eax, 16
+    shr         ecx, 16
+    mov         word ptr[rdx+32*13], ax
+    mov         word ptr[rdx+32*15], cx
+
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/common/x86/loopfilter_block_sse2_x86_64.asm b/media/libvpx/vp8/common/x86/loopfilter_block_sse2_x86_64.asm
new file mode 100644
index 000000000..6d5aaa19d
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/loopfilter_block_sse2_x86_64.asm
@@ -0,0 +1,815 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%macro LF_ABS 2
+        ; %1 value not preserved
+        ; %2 value preserved
+        ; output in %1
+        movdqa      scratch1, %2            ; v2
+
+        psubusb     scratch1, %1            ; v2 - v1
+        psubusb     %1, %2                  ; v1 - v2
+        por         %1, scratch1            ; abs(v2 - v1)
+%endmacro
+
+%macro LF_FILTER_HEV_MASK 8-9
+
+        LF_ABS      %1, %2                  ; abs(p3 - p2)
+        LF_ABS      %2, %3                  ; abs(p2 - p1)
+        pmaxub      %1, %2                  ; accumulate mask
+%if %0 == 8
+        movdqa      scratch2, %3            ; save p1
+        LF_ABS      scratch2, %4            ; abs(p1 - p0)
+%endif
+        LF_ABS      %4, %5                  ; abs(p0 - q0)
+        LF_ABS      %5, %6                  ; abs(q0 - q1)
+%if %0 == 8
+        pmaxub      %5, scratch2            ; accumulate hev
+%else
+        pmaxub      %5, %9
+%endif
+        pmaxub      %1, %5                  ; accumulate mask
+
+        LF_ABS      %3, %6                  ; abs(p1 - q1)
+        LF_ABS      %6, %7                  ; abs(q1 - q2)
+        pmaxub      %1, %6                  ; accumulate mask
+        LF_ABS      %7, %8                  ; abs(q2 - q3)
+        pmaxub      %1, %7                  ; accumulate mask
+
+        paddusb     %4, %4                  ; 2 * abs(p0 - q0)
+        pand        %3, [GLOBAL(tfe)]
+        psrlw       %3, 1                   ; abs(p1 - q1) / 2
+        paddusb     %4, %3                  ; abs(p0 - q0) * 2 + abs(p1 - q1) / 2
+
+        psubusb     %1, [limit]
+        psubusb     %4, [blimit]
+        por         %1, %4
+        pcmpeqb     %1, zero                ; mask
+
+        psubusb     %5, [thresh]
+        pcmpeqb     %5, zero                ; ~hev
+%endmacro
+
+%macro LF_FILTER 6
+        ; %1-%4: p1-q1
+        ; %5: mask
+        ; %6: hev
+
+        movdqa      scratch2, %6            ; save hev
+
+        pxor        %1, [GLOBAL(t80)]       ; ps1
+        pxor        %4, [GLOBAL(t80)]       ; qs1
+        movdqa      scratch1, %1
+        psubsb      scratch1, %4            ; signed_char_clamp(ps1 - qs1)
+        pandn       scratch2, scratch1      ; vp8_filter &= hev
+
+        pxor        %2, [GLOBAL(t80)]       ; ps0
+        pxor        %3, [GLOBAL(t80)]       ; qs0
+        movdqa      scratch1, %3
+        psubsb      scratch1, %2            ; qs0 - ps0
+        paddsb      scratch2, scratch1      ; vp8_filter += (qs0 - ps0)
+        paddsb      scratch2, scratch1      ; vp8_filter += (qs0 - ps0)
+        paddsb      scratch2, scratch1      ; vp8_filter += (qs0 - ps0)
+        pand        %5, scratch2            ; &= mask
+
+        movdqa      scratch2, %5
+        paddsb      %5, [GLOBAL(t4)]        ; Filter1
+        paddsb      scratch2, [GLOBAL(t3)]  ; Filter2
+
+        ; Filter1 >> 3
+        movdqa      scratch1, zero
+        pcmpgtb     scratch1, %5
+        psrlw       %5, 3
+        pand        scratch1, [GLOBAL(te0)]
+        pand        %5, [GLOBAL(t1f)]
+        por         %5, scratch1
+
+        psubsb      %3, %5                  ; qs0 - Filter1
+        pxor        %3, [GLOBAL(t80)]
+
+        ; Filter2 >> 3
+        movdqa      scratch1, zero
+        pcmpgtb     scratch1, scratch2
+        psrlw       scratch2, 3
+        pand        scratch1, [GLOBAL(te0)]
+        pand        scratch2, [GLOBAL(t1f)]
+        por         scratch2, scratch1
+
+        paddsb      %2, scratch2            ; ps0 + Filter2
+        pxor        %2, [GLOBAL(t80)]
+
+        ; outer tap adjustments
+        paddsb      %5, [GLOBAL(t1)]
+        movdqa      scratch1, zero
+        pcmpgtb     scratch1, %5
+        psrlw       %5, 1
+        pand        scratch1, [GLOBAL(t80)]
+        pand        %5, [GLOBAL(t7f)]
+        por         %5, scratch1
+        pand        %5, %6                  ; vp8_filter &= ~hev
+
+        psubsb      %4, %5                  ; qs1 - vp8_filter
+        pxor        %4, [GLOBAL(t80)]
+
+        paddsb      %1, %5                  ; ps1 + vp8_filter
+        pxor        %1, [GLOBAL(t80)]
+%endmacro
+
+;void vp8_loop_filter_bh_y_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh
+;)
+global sym(vp8_loop_filter_bh_y_sse2) PRIVATE
+sym(vp8_loop_filter_bh_y_sse2):
+
+%if LIBVPX_YASM_WIN64
+    %define src      rcx ; src_ptr
+    %define stride   rdx ; src_pixel_step
+    %define blimit   r8
+    %define limit    r9
+    %define thresh   r10
+
+    %define spp      rax
+    %define stride3  r11
+    %define stride5  r12
+    %define stride7  r13
+
+    push    rbp
+    mov     rbp, rsp
+    SAVE_XMM 11
+    push    r12
+    push    r13
+    mov     thresh, arg(4)
+%else
+    %define src      rdi ; src_ptr
+    %define stride   rsi ; src_pixel_step
+    %define blimit   rdx
+    %define limit    rcx
+    %define thresh   r8
+
+    %define spp      rax
+    %define stride3  r9
+    %define stride5  r10
+    %define stride7  r11
+%endif
+
+    %define scratch1 xmm5
+    %define scratch2 xmm6
+    %define zero     xmm7
+
+    %define i0       [src]
+    %define i1       [spp]
+    %define i2       [src + 2 * stride]
+    %define i3       [spp + 2 * stride]
+    %define i4       [src + 4 * stride]
+    %define i5       [spp + 4 * stride]
+    %define i6       [src + 2 * stride3]
+    %define i7       [spp + 2 * stride3]
+    %define i8       [src + 8 * stride]
+    %define i9       [spp + 8 * stride]
+    %define i10      [src + 2 * stride5]
+    %define i11      [spp + 2 * stride5]
+    %define i12      [src + 4 * stride3]
+    %define i13      [spp + 4 * stride3]
+    %define i14      [src + 2 * stride7]
+    %define i15      [spp + 2 * stride7]
+
+    ; prep work
+    lea         spp, [src + stride]
+    lea         stride3, [stride + 2 * stride]
+    lea         stride5, [stride3 + 2 * stride]
+    lea         stride7, [stride3 + 4 * stride]
+    pxor        zero, zero
+
+        ; load the first set into registers
+        movdqa       xmm0, i0
+        movdqa       xmm1, i1
+        movdqa       xmm2, i2
+        movdqa       xmm3, i3
+        movdqa       xmm4, i4
+        movdqa       xmm8, i5
+        movdqa       xmm9, i6   ; q2, will contain abs(p1-p0)
+        movdqa       xmm10, i7
+LF_FILTER_HEV_MASK xmm0, xmm1, xmm2, xmm3, xmm4, xmm8, xmm9, xmm10
+
+        movdqa       xmm1, i2
+        movdqa       xmm2, i3
+        movdqa       xmm3, i4
+        movdqa       xmm8, i5
+LF_FILTER xmm1, xmm2, xmm3, xmm8, xmm0, xmm4
+        movdqa       i2, xmm1
+        movdqa       i3, xmm2
+
+; second set
+        movdqa       i4, xmm3
+        movdqa       i5, xmm8
+
+        movdqa       xmm0, i6
+        movdqa       xmm1, i7
+        movdqa       xmm2, i8
+        movdqa       xmm4, i9
+        movdqa       xmm10, i10   ; q2, will contain abs(p1-p0)
+        movdqa       xmm11, i11
+LF_FILTER_HEV_MASK xmm3, xmm8, xmm0, xmm1, xmm2, xmm4, xmm10, xmm11, xmm9
+
+        movdqa       xmm0, i6
+        movdqa       xmm1, i7
+        movdqa       xmm4, i8
+        movdqa       xmm8, i9
+LF_FILTER xmm0, xmm1, xmm4, xmm8, xmm3, xmm2
+        movdqa       i6, xmm0
+        movdqa       i7, xmm1
+
+; last set
+        movdqa       i8, xmm4
+        movdqa       i9, xmm8
+
+        movdqa       xmm0, i10
+        movdqa       xmm1, i11
+        movdqa       xmm2, i12
+        movdqa       xmm3, i13
+        movdqa       xmm9, i14   ; q2, will contain abs(p1-p0)
+        movdqa       xmm11, i15
+LF_FILTER_HEV_MASK xmm4, xmm8, xmm0, xmm1, xmm2, xmm3, xmm9, xmm11, xmm10
+
+        movdqa       xmm0, i10
+        movdqa       xmm1, i11
+        movdqa       xmm3, i12
+        movdqa       xmm8, i13
+LF_FILTER xmm0, xmm1, xmm3, xmm8, xmm4, xmm2
+        movdqa       i10, xmm0
+        movdqa       i11, xmm1
+        movdqa       i12, xmm3
+        movdqa       i13, xmm8
+
+%if LIBVPX_YASM_WIN64
+    pop    r13
+    pop    r12
+    RESTORE_XMM
+    pop    rbp
+%endif
+
+    ret
+
+
+;void vp8_loop_filter_bv_y_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh
+;)
+
+global sym(vp8_loop_filter_bv_y_sse2) PRIVATE
+sym(vp8_loop_filter_bv_y_sse2):
+
+%if LIBVPX_YASM_WIN64
+    %define src      rcx ; src_ptr
+    %define stride   rdx ; src_pixel_step
+    %define blimit   r8
+    %define limit    r9
+    %define thresh   r10
+
+    %define spp      rax
+    %define stride3  r11
+    %define stride5  r12
+    %define stride7  r13
+
+    push    rbp
+    mov     rbp, rsp
+    SAVE_XMM 15
+    push    r12
+    push    r13
+    mov     thresh, arg(4)
+%else
+    %define src      rdi
+    %define stride   rsi
+    %define blimit   rdx
+    %define limit    rcx
+    %define thresh   r8
+
+    %define spp      rax
+    %define stride3  r9
+    %define stride5  r10
+    %define stride7  r11
+%endif
+
+    %define scratch1 xmm5
+    %define scratch2 xmm6
+    %define zero     xmm7
+
+    %define s0       [src]
+    %define s1       [spp]
+    %define s2       [src + 2 * stride]
+    %define s3       [spp + 2 * stride]
+    %define s4       [src + 4 * stride]
+    %define s5       [spp + 4 * stride]
+    %define s6       [src + 2 * stride3]
+    %define s7       [spp + 2 * stride3]
+    %define s8       [src + 8 * stride]
+    %define s9       [spp + 8 * stride]
+    %define s10      [src + 2 * stride5]
+    %define s11      [spp + 2 * stride5]
+    %define s12      [src + 4 * stride3]
+    %define s13      [spp + 4 * stride3]
+    %define s14      [src + 2 * stride7]
+    %define s15      [spp + 2 * stride7]
+
+    %define i0       [rsp]
+    %define i1       [rsp + 16]
+    %define i2       [rsp + 32]
+    %define i3       [rsp + 48]
+    %define i4       [rsp + 64]
+    %define i5       [rsp + 80]
+    %define i6       [rsp + 96]
+    %define i7       [rsp + 112]
+    %define i8       [rsp + 128]
+    %define i9       [rsp + 144]
+    %define i10      [rsp + 160]
+    %define i11      [rsp + 176]
+    %define i12      [rsp + 192]
+    %define i13      [rsp + 208]
+    %define i14      [rsp + 224]
+    %define i15      [rsp + 240]
+
+    ALIGN_STACK 16, rax
+
+    ; reserve stack space
+    %define      temp_storage  0 ; size is 256 (16*16)
+    %define      stack_size 256
+    sub          rsp, stack_size
+
+    ; prep work
+    lea         spp, [src + stride]
+    lea         stride3, [stride + 2 * stride]
+    lea         stride5, [stride3 + 2 * stride]
+    lea         stride7, [stride3 + 4 * stride]
+
+        ; 8-f
+        movdqa      xmm0, s8
+        movdqa      xmm1, xmm0
+        punpcklbw   xmm0, s9                ; 80 90
+        punpckhbw   xmm1, s9                ; 88 98
+
+        movdqa      xmm2, s10
+        movdqa      xmm3, xmm2
+        punpcklbw   xmm2, s11 ; a0 b0
+        punpckhbw   xmm3, s11 ; a8 b8
+
+        movdqa      xmm4, xmm0
+        punpcklwd   xmm0, xmm2              ; 80 90 a0 b0
+        punpckhwd   xmm4, xmm2              ; 84 94 a4 b4
+
+        movdqa      xmm2, xmm1
+        punpcklwd   xmm1, xmm3              ; 88 98 a8 b8
+        punpckhwd   xmm2, xmm3              ; 8c 9c ac bc
+
+        ; using xmm[0124]
+        ; work on next 4 rows
+
+        movdqa      xmm3, s12
+        movdqa      xmm5, xmm3
+        punpcklbw   xmm3, s13 ; c0 d0
+        punpckhbw   xmm5, s13 ; c8 d8
+
+        movdqa      xmm6, s14
+        movdqa      xmm7, xmm6
+        punpcklbw   xmm6, s15 ; e0 f0
+        punpckhbw   xmm7, s15 ; e8 f8
+
+        movdqa      xmm8, xmm3
+        punpcklwd   xmm3, xmm6              ; c0 d0 e0 f0
+        punpckhwd   xmm8, xmm6              ; c4 d4 e4 f4
+
+        movdqa      xmm6, xmm5
+        punpcklwd   xmm5, xmm7              ; c8 d8 e8 f8
+        punpckhwd   xmm6, xmm7              ; cc dc ec fc
+
+        ; pull the third and fourth sets together
+
+        movdqa      xmm7, xmm0
+        punpckldq   xmm0, xmm3              ; 80 90 a0 b0 c0 d0 e0 f0
+        punpckhdq   xmm7, xmm3              ; 82 92 a2 b2 c2 d2 e2 f2
+
+        movdqa      xmm3, xmm4
+        punpckldq   xmm4, xmm8              ; 84 94 a4 b4 c4 d4 e4 f4
+        punpckhdq   xmm3, xmm8              ; 86 96 a6 b6 c6 d6 e6 f6
+
+        movdqa      xmm8, xmm1
+        punpckldq   xmm1, xmm5              ; 88 88 a8 b8 c8 d8 e8 f8
+        punpckhdq   xmm8, xmm5              ; 8a 9a aa ba ca da ea fa
+
+        movdqa      xmm5, xmm2
+        punpckldq   xmm2, xmm6              ; 8c 9c ac bc cc dc ec fc
+        punpckhdq   xmm5, xmm6              ; 8e 9e ae be ce de ee fe
+
+        ; save the calculations. we only have 15 registers ...
+        movdqa      i0, xmm0
+        movdqa      i1, xmm7
+        movdqa      i2, xmm4
+        movdqa      i3, xmm3
+        movdqa      i4, xmm1
+        movdqa      i5, xmm8
+        movdqa      i6, xmm2
+        movdqa      i7, xmm5
+
+        ; 0-7
+        movdqa      xmm0, s0
+        movdqa      xmm1, xmm0
+        punpcklbw   xmm0, s1 ; 00 10
+        punpckhbw   xmm1, s1 ; 08 18
+
+        movdqa      xmm2, s2
+        movdqa      xmm3, xmm2
+        punpcklbw   xmm2, s3 ; 20 30
+        punpckhbw   xmm3, s3 ; 28 38
+
+        movdqa      xmm4, xmm0
+        punpcklwd   xmm0, xmm2              ; 00 10 20 30
+        punpckhwd   xmm4, xmm2              ; 04 14 24 34
+
+        movdqa      xmm2, xmm1
+        punpcklwd   xmm1, xmm3              ; 08 18 28 38
+        punpckhwd   xmm2, xmm3              ; 0c 1c 2c 3c
+
+        ; using xmm[0124]
+        ; work on next 4 rows
+
+        movdqa      xmm3, s4
+        movdqa      xmm5, xmm3
+        punpcklbw   xmm3, s5 ; 40 50
+        punpckhbw   xmm5, s5 ; 48 58
+
+        movdqa      xmm6, s6
+        movdqa      xmm7, xmm6
+        punpcklbw   xmm6, s7   ; 60 70
+        punpckhbw   xmm7, s7   ; 68 78
+
+        movdqa      xmm8, xmm3
+        punpcklwd   xmm3, xmm6              ; 40 50 60 70
+        punpckhwd   xmm8, xmm6              ; 44 54 64 74
+
+        movdqa      xmm6, xmm5
+        punpcklwd   xmm5, xmm7              ; 48 58 68 78
+        punpckhwd   xmm6, xmm7              ; 4c 5c 6c 7c
+
+        ; pull the first two sets together
+
+        movdqa      xmm7, xmm0
+        punpckldq   xmm0, xmm3              ; 00 10 20 30 40 50 60 70
+        punpckhdq   xmm7, xmm3              ; 02 12 22 32 42 52 62 72
+
+        movdqa      xmm3, xmm4
+        punpckldq   xmm4, xmm8              ; 04 14 24 34 44 54 64 74
+        punpckhdq   xmm3, xmm8              ; 06 16 26 36 46 56 66 76
+
+        movdqa      xmm8, xmm1
+        punpckldq   xmm1, xmm5              ; 08 18 28 38 48 58 68 78
+        punpckhdq   xmm8, xmm5              ; 0a 1a 2a 3a 4a 5a 6a 7a
+
+        movdqa      xmm5, xmm2
+        punpckldq   xmm2, xmm6              ; 0c 1c 2c 3c 4c 5c 6c 7c
+        punpckhdq   xmm5, xmm6              ; 0e 1e 2e 3e 4e 5e 6e 7e
+        ; final combination
+
+        movdqa      xmm6, xmm0
+        punpcklqdq  xmm0, i0
+        punpckhqdq  xmm6, i0
+
+        movdqa      xmm9, xmm7
+        punpcklqdq  xmm7, i1
+        punpckhqdq  xmm9, i1
+
+        movdqa      xmm10, xmm4
+        punpcklqdq  xmm4, i2
+        punpckhqdq  xmm10, i2
+
+        movdqa      xmm11, xmm3
+        punpcklqdq  xmm3, i3
+        punpckhqdq  xmm11, i3
+
+        movdqa      xmm12, xmm1
+        punpcklqdq  xmm1, i4
+        punpckhqdq  xmm12, i4
+
+        movdqa      xmm13, xmm8
+        punpcklqdq  xmm8, i5
+        punpckhqdq  xmm13, i5
+
+        movdqa      xmm14, xmm2
+        punpcklqdq  xmm2, i6
+        punpckhqdq  xmm14, i6
+
+        movdqa      xmm15, xmm5
+        punpcklqdq  xmm5, i7
+        punpckhqdq  xmm15, i7
+
+        movdqa      i0, xmm0
+        movdqa      i1, xmm6
+        movdqa      i2, xmm7
+        movdqa      i3, xmm9
+        movdqa      i4, xmm4
+        movdqa      i5, xmm10
+        movdqa      i6, xmm3
+        movdqa      i7, xmm11
+        movdqa      i8, xmm1
+        movdqa      i9, xmm12
+        movdqa      i10, xmm8
+        movdqa      i11, xmm13
+        movdqa      i12, xmm2
+        movdqa      i13, xmm14
+        movdqa      i14, xmm5
+        movdqa      i15, xmm15
+
+; TRANSPOSED DATA AVAILABLE ON THE STACK
+
+        movdqa      xmm12, xmm6
+        movdqa      xmm13, xmm7
+
+        pxor        zero, zero
+
+LF_FILTER_HEV_MASK xmm0, xmm12, xmm13, xmm9, xmm4, xmm10, xmm3, xmm11
+
+        movdqa       xmm1, i2
+        movdqa       xmm2, i3
+        movdqa       xmm8, i4
+        movdqa       xmm9, i5
+LF_FILTER xmm1, xmm2, xmm8, xmm9, xmm0, xmm4
+        movdqa       i2, xmm1
+        movdqa       i3, xmm2
+
+; second set
+        movdqa       i4, xmm8
+        movdqa       i5, xmm9
+
+        movdqa       xmm0, i6
+        movdqa       xmm1, i7
+        movdqa       xmm2, i8
+        movdqa       xmm4, i9
+        movdqa       xmm10, i10   ; q2, will contain abs(p1-p0)
+        movdqa       xmm11, i11
+LF_FILTER_HEV_MASK xmm8, xmm9, xmm0, xmm1, xmm2, xmm4, xmm10, xmm11, xmm3
+
+        movdqa       xmm0, i6
+        movdqa       xmm1, i7
+        movdqa       xmm3, i8
+        movdqa       xmm4, i9
+LF_FILTER xmm0, xmm1, xmm3, xmm4, xmm8, xmm2
+        movdqa       i6, xmm0
+        movdqa       i7, xmm1
+
+; last set
+        movdqa       i8, xmm3
+        movdqa       i9, xmm4
+
+        movdqa       xmm0, i10
+        movdqa       xmm1, i11
+        movdqa       xmm2, i12
+        movdqa       xmm8, i13
+        movdqa       xmm9, i14   ; q2, will contain abs(p1-p0)
+        movdqa       xmm11, i15
+LF_FILTER_HEV_MASK xmm3, xmm4, xmm0, xmm1, xmm2, xmm8, xmm9, xmm11, xmm10
+
+        movdqa       xmm0, i10
+        movdqa       xmm1, i11
+        movdqa       xmm4, i12
+        movdqa       xmm8, i13
+LF_FILTER xmm0, xmm1, xmm4, xmm8, xmm3, xmm2
+        movdqa       i10, xmm0
+        movdqa       i11, xmm1
+        movdqa       i12, xmm4
+        movdqa       i13, xmm8
+
+
+; RESHUFFLE AND WRITE OUT
+        ; 8-f
+        movdqa      xmm0, i8
+        movdqa      xmm1, xmm0
+        punpcklbw   xmm0, i9                ; 80 90
+        punpckhbw   xmm1, i9                ; 88 98
+
+        movdqa      xmm2, i10
+        movdqa      xmm3, xmm2
+        punpcklbw   xmm2, i11               ; a0 b0
+        punpckhbw   xmm3, i11               ; a8 b8
+
+        movdqa      xmm4, xmm0
+        punpcklwd   xmm0, xmm2              ; 80 90 a0 b0
+        punpckhwd   xmm4, xmm2              ; 84 94 a4 b4
+
+        movdqa      xmm2, xmm1
+        punpcklwd   xmm1, xmm3              ; 88 98 a8 b8
+        punpckhwd   xmm2, xmm3              ; 8c 9c ac bc
+
+        ; using xmm[0124]
+        ; work on next 4 rows
+
+        movdqa      xmm3, i12
+        movdqa      xmm5, xmm3
+        punpcklbw   xmm3, i13               ; c0 d0
+        punpckhbw   xmm5, i13               ; c8 d8
+
+        movdqa      xmm6, i14
+        movdqa      xmm7, xmm6
+        punpcklbw   xmm6, i15               ; e0 f0
+        punpckhbw   xmm7, i15               ; e8 f8
+
+        movdqa      xmm8, xmm3
+        punpcklwd   xmm3, xmm6              ; c0 d0 e0 f0
+        punpckhwd   xmm8, xmm6              ; c4 d4 e4 f4
+
+        movdqa      xmm6, xmm5
+        punpcklwd   xmm5, xmm7              ; c8 d8 e8 f8
+        punpckhwd   xmm6, xmm7              ; cc dc ec fc
+
+        ; pull the third and fourth sets together
+
+        movdqa      xmm7, xmm0
+        punpckldq   xmm0, xmm3              ; 80 90 a0 b0 c0 d0 e0 f0
+        punpckhdq   xmm7, xmm3              ; 82 92 a2 b2 c2 d2 e2 f2
+
+        movdqa      xmm3, xmm4
+        punpckldq   xmm4, xmm8              ; 84 94 a4 b4 c4 d4 e4 f4
+        punpckhdq   xmm3, xmm8              ; 86 96 a6 b6 c6 d6 e6 f6
+
+        movdqa      xmm8, xmm1
+        punpckldq   xmm1, xmm5              ; 88 88 a8 b8 c8 d8 e8 f8
+        punpckhdq   xmm8, xmm5              ; 8a 9a aa ba ca da ea fa
+
+        movdqa      xmm5, xmm2
+        punpckldq   xmm2, xmm6              ; 8c 9c ac bc cc dc ec fc
+        punpckhdq   xmm5, xmm6              ; 8e 9e ae be ce de ee fe
+
+        ; save the calculations. we only have 15 registers ...
+        movdqa      i8, xmm0
+        movdqa      i9, xmm7
+        movdqa      i10, xmm4
+        movdqa      i11, xmm3
+        movdqa      i12, xmm1
+        movdqa      i13, xmm8
+        movdqa      i14, xmm2
+        movdqa      i15, xmm5
+
+        ; 0-7
+        movdqa      xmm0, i0
+        movdqa      xmm1, xmm0
+        punpcklbw   xmm0, i1                ; 00 10
+        punpckhbw   xmm1, i1                ; 08 18
+
+        movdqa      xmm2, i2
+        movdqa      xmm3, xmm2
+        punpcklbw   xmm2, i3                ; 20 30
+        punpckhbw   xmm3, i3                ; 28 38
+
+        movdqa      xmm4, xmm0
+        punpcklwd   xmm0, xmm2              ; 00 10 20 30
+        punpckhwd   xmm4, xmm2              ; 04 14 24 34
+
+        movdqa      xmm2, xmm1
+        punpcklwd   xmm1, xmm3              ; 08 18 28 38
+        punpckhwd   xmm2, xmm3              ; 0c 1c 2c 3c
+
+        ; using xmm[0124]
+        ; work on next 4 rows
+
+        movdqa      xmm3, i4
+        movdqa      xmm5, xmm3
+        punpcklbw   xmm3, i5                ; 40 50
+        punpckhbw   xmm5, i5                ; 48 58
+
+        movdqa      xmm6, i6
+        movdqa      xmm7, xmm6
+        punpcklbw   xmm6, i7                ; 60 70
+        punpckhbw   xmm7, i7                ; 68 78
+
+        movdqa      xmm8, xmm3
+        punpcklwd   xmm3, xmm6              ; 40 50 60 70
+        punpckhwd   xmm8, xmm6              ; 44 54 64 74
+
+        movdqa      xmm6, xmm5
+        punpcklwd   xmm5, xmm7              ; 48 58 68 78
+        punpckhwd   xmm6, xmm7              ; 4c 5c 6c 7c
+
+        ; pull the first two sets together
+
+        movdqa      xmm7, xmm0
+        punpckldq   xmm0, xmm3              ; 00 10 20 30 40 50 60 70
+        punpckhdq   xmm7, xmm3              ; 02 12 22 32 42 52 62 72
+
+        movdqa      xmm3, xmm4
+        punpckldq   xmm4, xmm8              ; 04 14 24 34 44 54 64 74
+        punpckhdq   xmm3, xmm8              ; 06 16 26 36 46 56 66 76
+
+        movdqa      xmm8, xmm1
+        punpckldq   xmm1, xmm5              ; 08 18 28 38 48 58 68 78
+        punpckhdq   xmm8, xmm5              ; 0a 1a 2a 3a 4a 5a 6a 7a
+
+        movdqa      xmm5, xmm2
+        punpckldq   xmm2, xmm6              ; 0c 1c 2c 3c 4c 5c 6c 7c
+        punpckhdq   xmm5, xmm6              ; 0e 1e 2e 3e 4e 5e 6e 7e
+        ; final combination
+
+        movdqa      xmm6, xmm0
+        punpcklqdq  xmm0, i8
+        punpckhqdq  xmm6, i8
+
+        movdqa      xmm9, xmm7
+        punpcklqdq  xmm7, i9
+        punpckhqdq  xmm9, i9
+
+        movdqa      xmm10, xmm4
+        punpcklqdq  xmm4, i10
+        punpckhqdq  xmm10, i10
+
+        movdqa      xmm11, xmm3
+        punpcklqdq  xmm3, i11
+        punpckhqdq  xmm11, i11
+
+        movdqa      xmm12, xmm1
+        punpcklqdq  xmm1, i12
+        punpckhqdq  xmm12, i12
+
+        movdqa      xmm13, xmm8
+        punpcklqdq  xmm8, i13
+        punpckhqdq  xmm13, i13
+
+        movdqa      xmm14, xmm2
+        punpcklqdq  xmm2, i14
+        punpckhqdq  xmm14, i14
+
+        movdqa      xmm15, xmm5
+        punpcklqdq  xmm5, i15
+        punpckhqdq  xmm15, i15
+
+        movdqa      s0, xmm0
+        movdqa      s1, xmm6
+        movdqa      s2, xmm7
+        movdqa      s3, xmm9
+        movdqa      s4, xmm4
+        movdqa      s5, xmm10
+        movdqa      s6, xmm3
+        movdqa      s7, xmm11
+        movdqa      s8, xmm1
+        movdqa      s9, xmm12
+        movdqa      s10, xmm8
+        movdqa      s11, xmm13
+        movdqa      s12, xmm2
+        movdqa      s13, xmm14
+        movdqa      s14, xmm5
+        movdqa      s15, xmm15
+
+    ; free stack space
+    add          rsp, stack_size
+
+    ; un-ALIGN_STACK
+    pop          rsp
+
+%if LIBVPX_YASM_WIN64
+    pop    r13
+    pop    r12
+    RESTORE_XMM
+    pop    rbp
+%endif
+
+    ret
+
+SECTION_RODATA
+align 16
+te0:
+    times 16 db 0xe0
+align 16
+t7f:
+    times 16 db 0x7f
+align 16
+tfe:
+    times 16 db 0xfe
+align 16
+t1f:
+    times 16 db 0x1f
+align 16
+t80:
+    times 16 db 0x80
+align 16
+t1:
+    times 16 db 0x01
+align 16
+t3:
+    times 16 db 0x03
+align 16
+t4:
+    times 16 db 0x04
diff --git a/media/libvpx/vp8/common/x86/loopfilter_mmx.asm b/media/libvpx/vp8/common/x86/loopfilter_mmx.asm
new file mode 100644
index 000000000..88a07b9f3
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/loopfilter_mmx.asm
@@ -0,0 +1,1753 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+
+;void vp8_loop_filter_horizontal_edge_mmx
+;(
+;    unsigned char *src_ptr,
+;    int src_pixel_step,
+;    const char *blimit,
+;    const char *limit,
+;    const char *thresh,
+;    int  count
+;)
+global sym(vp8_loop_filter_horizontal_edge_mmx) PRIVATE
+sym(vp8_loop_filter_horizontal_edge_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 32                         ; reserve 32 bytes
+    %define t0 [rsp + 0]    ;__declspec(align(16)) char t0[8];
+    %define t1 [rsp + 16]   ;__declspec(align(16)) char t1[8];
+
+        mov         rsi, arg(0) ;src_ptr
+        movsxd      rax, dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        movsxd      rcx, dword ptr arg(5) ;count
+.next8_h:
+        mov         rdx, arg(3) ;limit
+        movq        mm7, [rdx]
+        mov         rdi, rsi              ; rdi points to row +1 for indirect addressing
+        add         rdi, rax
+
+        ; calculate breakout conditions
+        movq        mm2, [rdi+2*rax]      ; q3
+        movq        mm1, [rsi+2*rax]      ; q2
+        movq        mm6, mm1              ; q2
+        psubusb     mm1, mm2              ; q2-=q3
+        psubusb     mm2, mm6              ; q3-=q2
+        por         mm1, mm2              ; abs(q3-q2)
+        psubusb     mm1, mm7              ;
+
+
+        movq        mm4, [rsi+rax]        ; q1
+        movq        mm3, mm4              ; q1
+        psubusb     mm4, mm6              ; q1-=q2
+        psubusb     mm6, mm3              ; q2-=q1
+        por         mm4, mm6              ; abs(q2-q1)
+
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+        movq        mm4, [rsi]            ; q0
+        movq        mm0, mm4              ; q0
+        psubusb     mm4, mm3              ; q0-=q1
+        psubusb     mm3, mm0              ; q1-=q0
+        por         mm4, mm3              ; abs(q0-q1)
+        movq        t0, mm4               ; save to t0
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+
+        neg         rax                   ; negate pitch to deal with above border
+
+        movq        mm2, [rsi+4*rax]      ; p3
+        movq        mm4, [rdi+4*rax]      ; p2
+        movq        mm5, mm4              ; p2
+        psubusb     mm4, mm2              ; p2-=p3
+        psubusb     mm2, mm5              ; p3-=p2
+        por         mm4, mm2              ; abs(p3 - p2)
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+
+        movq        mm4, [rsi+2*rax]      ; p1
+        movq        mm3, mm4              ; p1
+        psubusb     mm4, mm5              ; p1-=p2
+        psubusb     mm5, mm3              ; p2-=p1
+        por         mm4, mm5              ; abs(p2 - p1)
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+        movq        mm2, mm3              ; p1
+
+        movq        mm4, [rsi+rax]        ; p0
+        movq        mm5, mm4              ; p0
+        psubusb     mm4, mm3              ; p0-=p1
+        psubusb     mm3, mm5              ; p1-=p0
+        por         mm4, mm3              ; abs(p1 - p0)
+        movq        t1, mm4               ; save to t1
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+        movq        mm3, [rdi]            ; q1
+        movq        mm4, mm3              ; q1
+        psubusb     mm3, mm2              ; q1-=p1
+        psubusb     mm2, mm4              ; p1-=q1
+        por         mm2, mm3              ; abs(p1-q1)
+        pand        mm2, [GLOBAL(tfe)]    ; set lsb of each byte to zero
+        psrlw       mm2, 1                ; abs(p1-q1)/2
+
+        movq        mm6, mm5              ; p0
+        movq        mm3, [rsi]            ; q0
+        psubusb     mm5, mm3              ; p0-=q0
+        psubusb     mm3, mm6              ; q0-=p0
+        por         mm5, mm3              ; abs(p0 - q0)
+        paddusb     mm5, mm5              ; abs(p0-q0)*2
+        paddusb     mm5, mm2              ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        mov         rdx, arg(2) ;blimit           ; get blimit
+        movq        mm7, [rdx]            ; blimit
+
+        psubusb     mm5,    mm7           ; abs (p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        por         mm1,    mm5
+        pxor        mm5,    mm5
+        pcmpeqb     mm1,    mm5           ; mask mm1
+
+        ; calculate high edge variance
+        mov         rdx, arg(4) ;thresh           ; get thresh
+        movq        mm7, [rdx]            ;
+        movq        mm4, t0               ; get abs (q1 - q0)
+        psubusb     mm4, mm7
+        movq        mm3, t1               ; get abs (p1 - p0)
+        psubusb     mm3, mm7
+        paddb       mm4, mm3              ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
+
+        pcmpeqb     mm4,        mm5
+
+        pcmpeqb     mm5,        mm5
+        pxor        mm4,        mm5
+
+
+        ; start work on filters
+        movq        mm2, [rsi+2*rax]      ; p1
+        movq        mm7, [rdi]            ; q1
+        pxor        mm2, [GLOBAL(t80)]    ; p1 offset to convert to signed values
+        pxor        mm7, [GLOBAL(t80)]    ; q1 offset to convert to signed values
+        psubsb      mm2, mm7              ; p1 - q1
+        pand        mm2, mm4              ; high var mask (hvm)(p1 - q1)
+        pxor        mm6, [GLOBAL(t80)]    ; offset to convert to signed values
+        pxor        mm0, [GLOBAL(t80)]    ; offset to convert to signed values
+        movq        mm3, mm0              ; q0
+        psubsb      mm0, mm6              ; q0 - p0
+        paddsb      mm2, mm0              ; 1 * (q0 - p0) + hvm(p1 - q1)
+        paddsb      mm2, mm0              ; 2 * (q0 - p0) + hvm(p1 - q1)
+        paddsb      mm2, mm0              ; 3 * (q0 - p0) + hvm(p1 - q1)
+        pand        mm1, mm2                  ; mask filter values we don't care about
+        movq        mm2, mm1
+        paddsb      mm1, [GLOBAL(t4)]     ; 3* (q0 - p0) + hvm(p1 - q1) + 4
+        paddsb      mm2, [GLOBAL(t3)]     ; 3* (q0 - p0) + hvm(p1 - q1) + 3
+
+        pxor        mm0, mm0             ;
+        pxor        mm5, mm5
+        punpcklbw   mm0, mm2            ;
+        punpckhbw   mm5, mm2            ;
+        psraw       mm0, 11             ;
+        psraw       mm5, 11
+        packsswb    mm0, mm5
+        movq        mm2, mm0            ;  (3* (q0 - p0) + hvm(p1 - q1) + 3) >> 3;
+
+        pxor        mm0, mm0              ; 0
+        movq        mm5, mm1              ; abcdefgh
+        punpcklbw   mm0, mm1              ; e0f0g0h0
+        psraw       mm0, 11               ; sign extended shift right by 3
+        pxor        mm1, mm1              ; 0
+        punpckhbw   mm1, mm5              ; a0b0c0d0
+        psraw       mm1, 11               ; sign extended shift right by 3
+        movq        mm5, mm0              ; save results
+
+        packsswb    mm0, mm1              ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>3
+        paddsw      mm5, [GLOBAL(ones)]
+        paddsw      mm1, [GLOBAL(ones)]
+        psraw       mm5, 1                ; partial shifted one more time for 2nd tap
+        psraw       mm1, 1                ; partial shifted one more time for 2nd tap
+        packsswb    mm5, mm1              ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>4
+        pandn       mm4, mm5              ; high edge variance additive
+
+        paddsb      mm6, mm2              ; p0+= p0 add
+        pxor        mm6, [GLOBAL(t80)]    ; unoffset
+        movq        [rsi+rax], mm6        ; write back
+
+        movq        mm6, [rsi+2*rax]      ; p1
+        pxor        mm6, [GLOBAL(t80)]    ; reoffset
+        paddsb      mm6, mm4              ; p1+= p1 add
+        pxor        mm6, [GLOBAL(t80)]    ; unoffset
+        movq        [rsi+2*rax], mm6      ; write back
+
+        psubsb      mm3, mm0              ; q0-= q0 add
+        pxor        mm3, [GLOBAL(t80)]    ; unoffset
+        movq        [rsi], mm3            ; write back
+
+        psubsb      mm7, mm4              ; q1-= q1 add
+        pxor        mm7, [GLOBAL(t80)]    ; unoffset
+        movq        [rdi], mm7            ; write back
+
+        add         rsi,8
+        neg         rax
+        dec         rcx
+        jnz         .next8_h
+
+    add rsp, 32
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_loop_filter_vertical_edge_mmx
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit,
+;    const char *limit,
+;    const char *thresh,
+;    int count
+;)
+global sym(vp8_loop_filter_vertical_edge_mmx) PRIVATE
+sym(vp8_loop_filter_vertical_edge_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub          rsp, 64      ; reserve 64 bytes
+    %define t0   [rsp + 0]    ;__declspec(align(16)) char t0[8];
+    %define t1   [rsp + 16]   ;__declspec(align(16)) char t1[8];
+    %define srct [rsp + 32]   ;__declspec(align(16)) char srct[32];
+
+        mov         rsi,        arg(0) ;src_ptr
+        movsxd      rax,        dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        lea         rsi,        [rsi + rax*4 - 4]
+
+        movsxd      rcx,        dword ptr arg(5) ;count
+.next8_v:
+        mov         rdi,        rsi           ; rdi points to row +1 for indirect addressing
+        add         rdi,        rax
+
+
+        ;transpose
+        movq        mm6,        [rsi+2*rax]                 ; 67 66 65 64 63 62 61 60
+        movq        mm7,        mm6                         ; 77 76 75 74 73 72 71 70
+
+        punpckhbw   mm7,        [rdi+2*rax]                 ; 77 67 76 66 75 65 74 64
+        punpcklbw   mm6,        [rdi+2*rax]                 ; 73 63 72 62 71 61 70 60
+
+        movq        mm4,        [rsi]                       ; 47 46 45 44 43 42 41 40
+        movq        mm5,        mm4                         ; 47 46 45 44 43 42 41 40
+
+        punpckhbw   mm5,        [rsi+rax]                   ; 57 47 56 46 55 45 54 44
+        punpcklbw   mm4,        [rsi+rax]                   ; 53 43 52 42 51 41 50 40
+
+        movq        mm3,        mm5                         ; 57 47 56 46 55 45 54 44
+        punpckhwd   mm5,        mm7                         ; 77 67 57 47 76 66 56 46
+
+        punpcklwd   mm3,        mm7                         ; 75 65 55 45 74 64 54 44
+        movq        mm2,        mm4                         ; 53 43 52 42 51 41 50 40
+
+        punpckhwd   mm4,        mm6                         ; 73 63 53 43 72 62 52 42
+        punpcklwd   mm2,        mm6                         ; 71 61 51 41 70 60 50 40
+
+        neg         rax
+        movq        mm6,        [rsi+rax*2]                 ; 27 26 25 24 23 22 21 20
+
+        movq        mm1,        mm6                         ; 27 26 25 24 23 22 21 20
+        punpckhbw   mm6,        [rsi+rax]                   ; 37 27 36 36 35 25 34 24
+
+        punpcklbw   mm1,        [rsi+rax]                   ; 33 23 32 22 31 21 30 20
+        movq        mm7,        [rsi+rax*4];                ; 07 06 05 04 03 02 01 00
+
+        punpckhbw   mm7,        [rdi+rax*4]                 ; 17 07 16 06 15 05 14 04
+        movq        mm0,        mm7                         ; 17 07 16 06 15 05 14 04
+
+        punpckhwd   mm7,        mm6                         ; 37 27 17 07 36 26 16 06
+        punpcklwd   mm0,        mm6                         ; 35 25 15 05 34 24 14 04
+
+        movq        mm6,        mm7                         ; 37 27 17 07 36 26 16 06
+        punpckhdq   mm7,        mm5                         ; 77 67 57 47 37 27 17 07  = q3
+
+        punpckldq   mm6,        mm5                         ; 76 66 56 46 36 26 16 06  = q2
+
+        movq        mm5,        mm6                         ; 76 66 56 46 36 26 16 06
+        psubusb     mm5,        mm7                         ; q2-q3
+
+        psubusb     mm7,        mm6                         ; q3-q2
+        por         mm7,        mm5;                        ; mm7=abs (q3-q2)
+
+        movq        mm5,        mm0                         ; 35 25 15 05 34 24 14 04
+        punpckhdq   mm5,        mm3                         ; 75 65 55 45 35 25 15 05 = q1
+
+        punpckldq   mm0,        mm3                         ; 74 64 54 44 34 24 15 04 = q0
+        movq        mm3,        mm5                         ; 75 65 55 45 35 25 15 05 = q1
+
+        psubusb     mm3,        mm6                         ; q1-q2
+        psubusb     mm6,        mm5                         ; q2-q1
+
+        por         mm6,        mm3                         ; mm6=abs(q2-q1)
+        lea         rdx,        srct
+
+        movq        [rdx+24],   mm5                         ; save q1
+        movq        [rdx+16],   mm0                         ; save q0
+
+        movq        mm3,        [rsi+rax*4]                 ; 07 06 05 04 03 02 01 00
+        punpcklbw   mm3,        [rdi+rax*4]                 ; 13 03 12 02 11 01 10 00
+
+        movq        mm0,        mm3                         ; 13 03 12 02 11 01 10 00
+        punpcklwd   mm0,        mm1                         ; 31 21 11 01 30 20 10 00
+
+        punpckhwd   mm3,        mm1                         ; 33 23 13 03 32 22 12 02
+        movq        mm1,        mm0                         ; 31 21 11 01 30 20 10 00
+
+        punpckldq   mm0,        mm2                         ; 70 60 50 40 30 20 10 00  =p3
+        punpckhdq   mm1,        mm2                         ; 71 61 51 41 31 21 11 01  =p2
+
+        movq        mm2,        mm1                         ; 71 61 51 41 31 21 11 01  =p2
+        psubusb     mm2,        mm0                         ; p2-p3
+
+        psubusb     mm0,        mm1                         ; p3-p2
+        por         mm0,        mm2                         ; mm0=abs(p3-p2)
+
+        movq        mm2,        mm3                         ; 33 23 13 03 32 22 12 02
+        punpckldq   mm2,        mm4                         ; 72 62 52 42 32 22 12 02 = p1
+
+        punpckhdq   mm3,        mm4                         ; 73 63 53 43 33 23 13 03 = p0
+        movq        [rdx+8],    mm3                         ; save p0
+
+        movq        [rdx],      mm2                         ; save p1
+        movq        mm5,        mm2                         ; mm5 = p1
+
+        psubusb     mm2,        mm1                         ; p1-p2
+        psubusb     mm1,        mm5                         ; p2-p1
+
+        por         mm1,        mm2                         ; mm1=abs(p2-p1)
+        mov         rdx,        arg(3) ;limit
+
+        movq        mm4,        [rdx]                       ; mm4 = limit
+        psubusb     mm7,        mm4
+
+        psubusb     mm0,        mm4
+        psubusb     mm1,        mm4
+
+        psubusb     mm6,        mm4
+        por         mm7,        mm6
+
+        por         mm0,        mm1
+        por         mm0,        mm7                         ;   abs(q3-q2) > limit || abs(p3-p2) > limit ||abs(p2-p1) > limit || abs(q2-q1) > limit
+
+        movq        mm1,        mm5                         ; p1
+
+        movq        mm7,        mm3                         ; mm3=mm7=p0
+        psubusb     mm7,        mm5                         ; p0 - p1
+
+        psubusb     mm5,        mm3                         ; p1 - p0
+        por         mm5,        mm7                         ; abs(p1-p0)
+
+        movq        t0,         mm5                         ; save abs(p1-p0)
+        lea         rdx,        srct
+
+        psubusb     mm5,        mm4
+        por         mm0,        mm5                         ; mm0=mask
+
+        movq        mm5,        [rdx+16]                    ; mm5=q0
+        movq        mm7,        [rdx+24]                    ; mm7=q1
+
+        movq        mm6,        mm5                         ; mm6=q0
+        movq        mm2,        mm7                         ; q1
+        psubusb     mm5,        mm7                         ; q0-q1
+
+        psubusb     mm7,        mm6                         ; q1-q0
+        por         mm7,        mm5                         ; abs(q1-q0)
+
+        movq        t1,         mm7                         ; save abs(q1-q0)
+        psubusb     mm7,        mm4
+
+        por         mm0,        mm7                         ; mask
+
+        movq        mm5,        mm2                         ; q1
+        psubusb     mm5,        mm1                         ; q1-=p1
+        psubusb     mm1,        mm2                         ; p1-=q1
+        por         mm5,        mm1                         ; abs(p1-q1)
+        pand        mm5,        [GLOBAL(tfe)]               ; set lsb of each byte to zero
+        psrlw       mm5,        1                           ; abs(p1-q1)/2
+
+        mov         rdx,        arg(2) ;blimit                      ;
+
+        movq        mm4,        [rdx]                       ;blimit
+        movq        mm1,        mm3                         ; mm1=mm3=p0
+
+        movq        mm7,        mm6                         ; mm7=mm6=q0
+        psubusb     mm1,        mm7                         ; p0-q0
+
+        psubusb     mm7,        mm3                         ; q0-p0
+        por         mm1,        mm7                         ; abs(q0-p0)
+        paddusb     mm1,        mm1                         ; abs(q0-p0)*2
+        paddusb     mm1,        mm5                         ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        psubusb     mm1,        mm4                         ; abs (p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        por         mm1,        mm0;                        ; mask
+
+        pxor        mm0,        mm0
+        pcmpeqb     mm1,        mm0
+
+        ; calculate high edge variance
+        mov         rdx,        arg(4) ;thresh            ; get thresh
+        movq        mm7,        [rdx]
+        ;
+        movq        mm4,        t0              ; get abs (q1 - q0)
+        psubusb     mm4,        mm7
+
+        movq        mm3,        t1              ; get abs (p1 - p0)
+        psubusb     mm3,        mm7
+
+        por         mm4,        mm3             ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
+        pcmpeqb     mm4,        mm0
+
+        pcmpeqb     mm0,        mm0
+        pxor        mm4,        mm0
+
+
+
+        ; start work on filters
+        lea         rdx,        srct
+
+        movq        mm2,        [rdx]           ; p1
+        movq        mm7,        [rdx+24]        ; q1
+
+        movq        mm6,        [rdx+8]         ; p0
+        movq        mm0,        [rdx+16]        ; q0
+
+        pxor        mm2,        [GLOBAL(t80)]   ; p1 offset to convert to signed values
+        pxor        mm7,        [GLOBAL(t80)]   ; q1 offset to convert to signed values
+
+        psubsb      mm2,        mm7             ; p1 - q1
+        pand        mm2,        mm4             ; high var mask (hvm)(p1 - q1)
+
+        pxor        mm6,        [GLOBAL(t80)]   ; offset to convert to signed values
+        pxor        mm0,        [GLOBAL(t80)]   ; offset to convert to signed values
+
+        movq        mm3,        mm0             ; q0
+        psubsb      mm0,        mm6             ; q0 - p0
+
+        paddsb      mm2,        mm0             ; 1 * (q0 - p0) + hvm(p1 - q1)
+        paddsb      mm2,        mm0             ; 2 * (q0 - p0) + hvm(p1 - q1)
+
+        paddsb      mm2,        mm0             ; 3 * (q0 - p0) + hvm(p1 - q1)
+        pand       mm1,        mm2              ; mask filter values we don't care about
+
+        movq        mm2,        mm1
+        paddsb      mm1,        [GLOBAL(t4)]      ; 3* (q0 - p0) + hvm(p1 - q1) + 4
+
+        paddsb      mm2,        [GLOBAL(t3)]      ; 3* (q0 - p0) + hvm(p1 - q1) + 3
+        pxor        mm0,        mm0          ;
+
+        pxor        mm5,        mm5
+        punpcklbw   mm0,        mm2         ;
+
+        punpckhbw   mm5,        mm2         ;
+        psraw       mm0,        11              ;
+
+        psraw       mm5,        11
+        packsswb    mm0,        mm5
+
+        movq        mm2,        mm0         ;  (3* (q0 - p0) + hvm(p1 - q1) + 3) >> 3;
+
+        pxor        mm0,        mm0           ; 0
+        movq        mm5,        mm1           ; abcdefgh
+
+        punpcklbw   mm0,        mm1           ; e0f0g0h0
+        psraw       mm0,        11                ; sign extended shift right by 3
+
+        pxor        mm1,        mm1           ; 0
+        punpckhbw   mm1,        mm5           ; a0b0c0d0
+
+        psraw       mm1,        11                ; sign extended shift right by 3
+        movq        mm5,        mm0              ; save results
+
+        packsswb    mm0,        mm1           ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>3
+        paddsw      mm5,        [GLOBAL(ones)]
+
+        paddsw      mm1,        [GLOBAL(ones)]
+        psraw       mm5,        1                 ; partial shifted one more time for 2nd tap
+
+        psraw       mm1,        1                 ; partial shifted one more time for 2nd tap
+        packsswb    mm5,        mm1           ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>4
+
+        pandn       mm4,        mm5             ; high edge variance additive
+
+        paddsb      mm6,        mm2             ; p0+= p0 add
+        pxor        mm6,        [GLOBAL(t80)]   ; unoffset
+
+        ; mm6=p0                               ;
+        movq        mm1,        [rdx]           ; p1
+        pxor        mm1,        [GLOBAL(t80)]   ; reoffset
+
+        paddsb      mm1,        mm4                 ; p1+= p1 add
+        pxor        mm1,        [GLOBAL(t80)]       ; unoffset
+        ; mm6 = p0 mm1 = p1
+
+        psubsb      mm3,        mm0                 ; q0-= q0 add
+        pxor        mm3,        [GLOBAL(t80)]       ; unoffset
+
+        ; mm3 = q0
+        psubsb      mm7,        mm4                 ; q1-= q1 add
+        pxor        mm7,        [GLOBAL(t80)]       ; unoffset
+        ; mm7 = q1
+
+        ; transpose and write back
+        ; mm1 =    72 62 52 42 32 22 12 02
+        ; mm6 =    73 63 53 43 33 23 13 03
+        ; mm3 =    74 64 54 44 34 24 14 04
+        ; mm7 =    75 65 55 45 35 25 15 05
+
+        movq        mm2,        mm1             ; 72 62 52 42 32 22 12 02
+        punpcklbw   mm2,        mm6             ; 33 32 23 22 13 12 03 02
+
+        movq        mm4,        mm3             ; 74 64 54 44 34 24 14 04
+        punpckhbw   mm1,        mm6             ; 73 72 63 62 53 52 43 42
+
+        punpcklbw   mm4,        mm7             ; 35 34 25 24 15 14 05 04
+        punpckhbw   mm3,        mm7             ; 75 74 65 64 55 54 45 44
+
+        movq        mm6,        mm2             ; 33 32 23 22 13 12 03 02
+        punpcklwd   mm2,        mm4             ; 15 14 13 12 05 04 03 02
+
+        punpckhwd   mm6,        mm4             ; 35 34 33 32 25 24 23 22
+        movq        mm5,        mm1             ; 73 72 63 62 53 52 43 42
+
+        punpcklwd   mm1,        mm3             ; 55 54 53 52 45 44 43 42
+        punpckhwd   mm5,        mm3             ; 75 74 73 72 65 64 63 62
+
+
+        ; mm2 = 15 14 13 12 05 04 03 02
+        ; mm6 = 35 34 33 32 25 24 23 22
+        ; mm5 = 55 54 53 52 45 44 43 42
+        ; mm1 = 75 74 73 72 65 64 63 62
+
+
+
+        movd        [rsi+rax*4+2], mm2
+        psrlq       mm2,        32
+
+        movd        [rdi+rax*4+2], mm2
+        movd        [rsi+rax*2+2], mm6
+
+        psrlq       mm6,        32
+        movd        [rsi+rax+2],mm6
+
+        movd        [rsi+2],    mm1
+        psrlq       mm1,        32
+
+        movd        [rdi+2],    mm1
+        neg         rax
+
+        movd        [rdi+rax+2],mm5
+        psrlq       mm5,        32
+
+        movd        [rdi+rax*2+2], mm5
+
+        lea         rsi,        [rsi+rax*8]
+        dec         rcx
+        jnz         .next8_v
+
+    add rsp, 64
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_mbloop_filter_horizontal_edge_mmx
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit,
+;    const char *limit,
+;    const char *thresh,
+;    int count
+;)
+global sym(vp8_mbloop_filter_horizontal_edge_mmx) PRIVATE
+sym(vp8_mbloop_filter_horizontal_edge_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub          rsp, 32      ; reserve 32 bytes
+    %define t0   [rsp + 0]    ;__declspec(align(16)) char t0[8];
+    %define t1   [rsp + 16]   ;__declspec(align(16)) char t1[8];
+
+        mov         rsi, arg(0) ;src_ptr
+        movsxd      rax, dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        movsxd      rcx, dword ptr arg(5) ;count
+.next8_mbh:
+        mov         rdx, arg(3) ;limit
+        movq        mm7, [rdx]
+        mov         rdi, rsi              ; rdi points to row +1 for indirect addressing
+        add         rdi, rax
+
+        ; calculate breakout conditions
+        movq        mm2, [rdi+2*rax]      ; q3
+
+        movq        mm1, [rsi+2*rax]      ; q2
+        movq        mm6, mm1              ; q2
+        psubusb     mm1, mm2              ; q2-=q3
+        psubusb     mm2, mm6              ; q3-=q2
+        por         mm1, mm2              ; abs(q3-q2)
+        psubusb     mm1, mm7
+
+
+        ; mm1 = abs(q3-q2), mm6 =q2, mm7 = limit
+        movq        mm4, [rsi+rax]        ; q1
+        movq        mm3, mm4              ; q1
+        psubusb     mm4, mm6              ; q1-=q2
+        psubusb     mm6, mm3              ; q2-=q1
+        por         mm4, mm6              ; abs(q2-q1)
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+
+        ; mm1 = mask,      mm3=q1, mm7 = limit
+
+        movq        mm4, [rsi]            ; q0
+        movq        mm0, mm4              ; q0
+        psubusb     mm4, mm3              ; q0-=q1
+        psubusb     mm3, mm0              ; q1-=q0
+        por         mm4, mm3              ; abs(q0-q1)
+        movq        t0, mm4               ; save to t0
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+
+        ; mm1 = mask, mm0=q0,  mm7 = limit, t0 = abs(q0-q1)
+
+        neg         rax                   ; negate pitch to deal with above border
+
+        movq        mm2, [rsi+4*rax]      ; p3
+        movq        mm4, [rdi+4*rax]      ; p2
+        movq        mm5, mm4              ; p2
+        psubusb     mm4, mm2              ; p2-=p3
+        psubusb     mm2, mm5              ; p3-=p2
+        por         mm4, mm2              ; abs(p3 - p2)
+        psubusb     mm4, mm7
+        por        mm1, mm4
+        ; mm1 = mask, mm0=q0,  mm7 = limit, t0 = abs(q0-q1)
+
+        movq        mm4, [rsi+2*rax]      ; p1
+        movq        mm3, mm4              ; p1
+        psubusb     mm4, mm5              ; p1-=p2
+        psubusb     mm5, mm3              ; p2-=p1
+        por         mm4, mm5              ; abs(p2 - p1)
+        psubusb     mm4, mm7
+        por        mm1, mm4
+
+        movq        mm2, mm3              ; p1
+
+
+        ; mm1 = mask, mm0=q0,  mm7 = limit, t0 = abs(q0-q1)
+
+        movq        mm4, [rsi+rax]        ; p0
+        movq        mm5, mm4              ; p0
+        psubusb     mm4, mm3              ; p0-=p1
+        psubusb     mm3, mm5              ; p1-=p0
+        por         mm4, mm3              ; abs(p1 - p0)
+        movq        t1, mm4               ; save to t1
+        psubusb     mm4, mm7
+        por        mm1, mm4
+        ; mm1 = mask, mm0=q0,  mm7 = limit, t0 = abs(q0-q1) t1 = abs(p1-p0)
+        ; mm5 = p0
+        movq        mm3, [rdi]            ; q1
+        movq        mm4, mm3              ; q1
+        psubusb     mm3, mm2              ; q1-=p1
+        psubusb     mm2, mm4              ; p1-=q1
+        por         mm2, mm3              ; abs(p1-q1)
+        pand        mm2, [GLOBAL(tfe)]    ; set lsb of each byte to zero
+        psrlw       mm2, 1                ; abs(p1-q1)/2
+
+        movq        mm6, mm5              ; p0
+        movq        mm3, mm0              ; q0
+        psubusb     mm5, mm3              ; p0-=q0
+        psubusb     mm3, mm6              ; q0-=p0
+        por         mm5, mm3              ; abs(p0 - q0)
+        paddusb     mm5, mm5              ; abs(p0-q0)*2
+        paddusb     mm5, mm2              ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        mov         rdx, arg(2) ;blimit           ; get blimit
+        movq        mm7, [rdx]            ; blimit
+
+        psubusb     mm5,    mm7           ; abs (p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        por         mm1,    mm5
+        pxor        mm5,    mm5
+        pcmpeqb     mm1,    mm5           ; mask mm1
+
+        ; mm1 = mask, mm0=q0,  mm7 = blimit, t0 = abs(q0-q1) t1 = abs(p1-p0)
+        ; mm6 = p0,
+
+        ; calculate high edge variance
+        mov         rdx, arg(4) ;thresh           ; get thresh
+        movq        mm7, [rdx]            ;
+        movq        mm4, t0               ; get abs (q1 - q0)
+        psubusb     mm4, mm7
+        movq        mm3, t1               ; get abs (p1 - p0)
+        psubusb     mm3, mm7
+        paddb       mm4, mm3              ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
+
+        pcmpeqb     mm4,        mm5
+
+        pcmpeqb     mm5,        mm5
+        pxor        mm4,        mm5
+
+
+
+        ; mm1 = mask, mm0=q0,  mm7 = thresh, t0 = abs(q0-q1) t1 = abs(p1-p0)
+        ; mm6 = p0, mm4=hev
+        ; start work on filters
+        movq        mm2, [rsi+2*rax]      ; p1
+        movq        mm7, [rdi]            ; q1
+        pxor        mm2, [GLOBAL(t80)]    ; p1 offset to convert to signed values
+        pxor        mm7, [GLOBAL(t80)]    ; q1 offset to convert to signed values
+        psubsb      mm2, mm7              ; p1 - q1
+
+        pxor        mm6, [GLOBAL(t80)]    ; offset to convert to signed values
+        pxor        mm0, [GLOBAL(t80)]    ; offset to convert to signed values
+        movq        mm3, mm0              ; q0
+        psubsb      mm0, mm6              ; q0 - p0
+        paddsb      mm2, mm0              ; 1 * (q0 - p0) + (p1 - q1)
+        paddsb      mm2, mm0              ; 2 * (q0 - p0)
+        paddsb      mm2, mm0              ; 3 * (q0 - p0) + (p1 - q1)
+        pand        mm1, mm2              ; mask filter values we don't care about
+
+
+        ; mm1 = vp8_filter, mm4=hev, mm6=ps0, mm3=qs0
+        movq        mm2, mm1              ; vp8_filter
+        pand        mm2, mm4;             ; Filter2 = vp8_filter & hev
+
+        movq        mm5,        mm2       ;
+        paddsb      mm5,        [GLOBAL(t3)];
+
+        pxor        mm0, mm0              ; 0
+        pxor        mm7, mm7              ; 0
+
+        punpcklbw   mm0, mm5              ; e0f0g0h0
+        psraw       mm0, 11               ; sign extended shift right by 3
+        punpckhbw   mm7, mm5              ; a0b0c0d0
+        psraw       mm7, 11               ; sign extended shift right by 3
+        packsswb    mm0, mm7              ; Filter2 >>=3;
+
+        movq        mm5, mm0              ; Filter2
+
+        paddsb      mm2, [GLOBAL(t4)]     ; vp8_signed_char_clamp(Filter2 + 4)
+        pxor        mm0, mm0              ; 0
+        pxor        mm7, mm7              ; 0
+
+        punpcklbw   mm0, mm2              ; e0f0g0h0
+        psraw       mm0, 11               ; sign extended shift right by 3
+        punpckhbw   mm7, mm2              ; a0b0c0d0
+        psraw       mm7, 11               ; sign extended shift right by 3
+        packsswb    mm0, mm7              ; Filter2 >>=3;
+
+        ; mm0= filter2 mm1 = vp8_filter,  mm3 =qs0 mm5=s mm4 =hev mm6=ps0
+        psubsb      mm3, mm0              ; qs0 =qs0 - filter1
+        paddsb      mm6, mm5              ; ps0 =ps0 + Fitler2
+
+        ; mm1=vp8_filter, mm3=qs0, mm4 =hev mm6=ps0
+        ; vp8_filter &= ~hev;
+        ; Filter2 = vp8_filter;
+        pandn       mm4, mm1              ; vp8_filter&=~hev
+
+
+        ; mm3=qs0, mm4=filter2, mm6=ps0
+
+        ; u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7);
+        ; s = vp8_signed_char_clamp(qs0 - u);
+        ; *oq0 = s^0x80;
+        ; s = vp8_signed_char_clamp(ps0 + u);
+        ; *op0 = s^0x80;
+        pxor        mm0, mm0
+
+        pxor        mm1, mm1
+        pxor        mm2, mm2
+        punpcklbw   mm1, mm4
+        punpckhbw   mm2, mm4
+        pmulhw      mm1, [GLOBAL(s27)]
+        pmulhw      mm2, [GLOBAL(s27)]
+        paddw       mm1, [GLOBAL(s63)]
+        paddw       mm2, [GLOBAL(s63)]
+        psraw       mm1, 7
+        psraw       mm2, 7
+        packsswb    mm1, mm2
+
+        psubsb      mm3, mm1
+        paddsb      mm6, mm1
+
+        pxor        mm3, [GLOBAL(t80)]
+        pxor        mm6, [GLOBAL(t80)]
+        movq        [rsi+rax], mm6
+        movq        [rsi],     mm3
+
+        ; roughly 2/7th difference across boundary
+        ; u = vp8_signed_char_clamp((63 + Filter2 * 18)>>7);
+        ; s = vp8_signed_char_clamp(qs1 - u);
+        ; *oq1 = s^0x80;
+        ; s = vp8_signed_char_clamp(ps1 + u);
+        ; *op1 = s^0x80;
+        pxor        mm1, mm1
+        pxor        mm2, mm2
+        punpcklbw   mm1, mm4
+        punpckhbw   mm2, mm4
+        pmulhw      mm1, [GLOBAL(s18)]
+        pmulhw      mm2, [GLOBAL(s18)]
+        paddw       mm1, [GLOBAL(s63)]
+        paddw       mm2, [GLOBAL(s63)]
+        psraw       mm1, 7
+        psraw       mm2, 7
+        packsswb    mm1, mm2
+
+        movq        mm3, [rdi]
+        movq        mm6, [rsi+rax*2]       ; p1
+
+        pxor        mm3, [GLOBAL(t80)]
+        pxor        mm6, [GLOBAL(t80)]
+
+        paddsb      mm6, mm1
+        psubsb      mm3, mm1
+
+        pxor        mm6, [GLOBAL(t80)]
+        pxor        mm3, [GLOBAL(t80)]
+        movq        [rdi], mm3
+        movq        [rsi+rax*2], mm6
+
+        ; roughly 1/7th difference across boundary
+        ; u = vp8_signed_char_clamp((63 + Filter2 * 9)>>7);
+        ; s = vp8_signed_char_clamp(qs2 - u);
+        ; *oq2 = s^0x80;
+        ; s = vp8_signed_char_clamp(ps2 + u);
+        ; *op2 = s^0x80;
+        pxor        mm1, mm1
+        pxor        mm2, mm2
+        punpcklbw   mm1, mm4
+        punpckhbw   mm2, mm4
+        pmulhw      mm1, [GLOBAL(s9)]
+        pmulhw      mm2, [GLOBAL(s9)]
+        paddw       mm1, [GLOBAL(s63)]
+        paddw       mm2, [GLOBAL(s63)]
+        psraw       mm1, 7
+        psraw       mm2, 7
+        packsswb    mm1, mm2
+
+
+        movq        mm6, [rdi+rax*4]
+        neg         rax
+        movq        mm3, [rdi+rax  ]
+
+        pxor        mm6, [GLOBAL(t80)]
+        pxor        mm3, [GLOBAL(t80)]
+
+        paddsb      mm6, mm1
+        psubsb      mm3, mm1
+
+        pxor        mm6, [GLOBAL(t80)]
+        pxor        mm3, [GLOBAL(t80)]
+        movq        [rdi+rax  ], mm3
+        neg         rax
+        movq        [rdi+rax*4], mm6
+
+;EARLY_BREAK_OUT:
+        neg         rax
+        add         rsi,8
+        dec         rcx
+        jnz         .next8_mbh
+
+    add rsp, 32
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_mbloop_filter_vertical_edge_mmx
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit,
+;    const char *limit,
+;    const char *thresh,
+;    int count
+;)
+global sym(vp8_mbloop_filter_vertical_edge_mmx) PRIVATE
+sym(vp8_mbloop_filter_vertical_edge_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub          rsp, 96      ; reserve 96 bytes
+    %define t0   [rsp + 0]    ;__declspec(align(16)) char t0[8];
+    %define t1   [rsp + 16]   ;__declspec(align(16)) char t1[8];
+    %define srct [rsp + 32]   ;__declspec(align(16)) char srct[64];
+
+        mov         rsi,        arg(0) ;src_ptr
+        movsxd      rax,        dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        lea         rsi,        [rsi + rax*4 - 4]
+
+        movsxd      rcx,        dword ptr arg(5) ;count
+.next8_mbv:
+        lea         rdi,        [rsi + rax]  ; rdi points to row +1 for indirect addressing
+
+        ;transpose
+        movq        mm0,        [rdi+2*rax]                 ; 77 76 75 74 73 72 71 70
+        movq        mm6,        [rsi+2*rax]                 ; 67 66 65 64 63 62 61 60
+
+        movq        mm7,        mm6                         ; 77 76 75 74 73 72 71 70
+        punpckhbw   mm7,        mm0                         ; 77 67 76 66 75 65 74 64
+
+        punpcklbw   mm6,        mm0                         ; 73 63 72 62 71 61 70 60
+        movq        mm0,        [rsi+rax]                   ; 57 56 55 54 53 52 51 50
+
+        movq        mm4,        [rsi]                       ; 47 46 45 44 43 42 41 40
+        movq        mm5,        mm4                         ; 47 46 45 44 43 42 41 40
+
+        punpckhbw   mm5,        mm0                         ; 57 47 56 46 55 45 54 44
+        punpcklbw   mm4,        mm0                         ; 53 43 52 42 51 41 50 40
+
+        movq        mm3,        mm5                         ; 57 47 56 46 55 45 54 44
+        punpckhwd   mm5,        mm7                         ; 77 67 57 47 76 66 56 46
+
+        punpcklwd   mm3,        mm7                         ; 75 65 55 45 74 64 54 44
+        movq        mm2,        mm4                         ; 53 43 52 42 51 41 50 40
+
+        punpckhwd   mm4,        mm6                         ; 73 63 53 43 72 62 52 42
+        punpcklwd   mm2,        mm6                         ; 71 61 51 41 70 60 50 40
+
+        neg         rax
+
+        movq        mm7,        [rsi+rax]                   ; 37 36 35 34 33 32 31 30
+        movq        mm6,        [rsi+rax*2]                 ; 27 26 25 24 23 22 21 20
+
+        movq        mm1,        mm6                         ; 27 26 25 24 23 22 21 20
+        punpckhbw   mm6,        mm7                         ; 37 27 36 36 35 25 34 24
+
+        punpcklbw   mm1,        mm7                         ; 33 23 32 22 31 21 30 20
+
+        movq        mm7,        [rsi+rax*4];                ; 07 06 05 04 03 02 01 00
+        punpckhbw   mm7,        [rdi+rax*4]                 ; 17 07 16 06 15 05 14 04
+
+        movq        mm0,        mm7                         ; 17 07 16 06 15 05 14 04
+        punpckhwd   mm7,        mm6                         ; 37 27 17 07 36 26 16 06
+
+        punpcklwd   mm0,        mm6                         ; 35 25 15 05 34 24 14 04
+        movq        mm6,        mm7                         ; 37 27 17 07 36 26 16 06
+
+        punpckhdq   mm7,        mm5                         ; 77 67 57 47 37 27 17 07  = q3
+        punpckldq   mm6,        mm5                         ; 76 66 56 46 36 26 16 06  = q2
+
+        lea         rdx,        srct
+        movq        mm5,        mm6                         ; 76 66 56 46 36 26 16 06
+
+        movq        [rdx+56],   mm7
+        psubusb     mm5,        mm7                         ; q2-q3
+
+
+        movq        [rdx+48],   mm6
+        psubusb     mm7,        mm6                         ; q3-q2
+
+        por         mm7,        mm5;                        ; mm7=abs (q3-q2)
+        movq        mm5,        mm0                         ; 35 25 15 05 34 24 14 04
+
+        punpckhdq   mm5,        mm3                         ; 75 65 55 45 35 25 15 05 = q1
+        punpckldq   mm0,        mm3                         ; 74 64 54 44 34 24 15 04 = q0
+
+        movq        mm3,        mm5                         ; 75 65 55 45 35 25 15 05 = q1
+        psubusb     mm3,        mm6                         ; q1-q2
+
+        psubusb     mm6,        mm5                         ; q2-q1
+        por         mm6,        mm3                         ; mm6=abs(q2-q1)
+
+        movq        [rdx+40],   mm5                         ; save q1
+        movq        [rdx+32],   mm0                         ; save q0
+
+        movq        mm3,        [rsi+rax*4]                 ; 07 06 05 04 03 02 01 00
+        punpcklbw   mm3,        [rdi+rax*4]                 ; 13 03 12 02 11 01 10 00
+
+        movq        mm0,        mm3                         ; 13 03 12 02 11 01 10 00
+        punpcklwd   mm0,        mm1                         ; 31 21 11 01 30 20 10 00
+
+        punpckhwd   mm3,        mm1                         ; 33 23 13 03 32 22 12 02
+        movq        mm1,        mm0                         ; 31 21 11 01 30 20 10 00
+
+        punpckldq   mm0,        mm2                         ; 70 60 50 40 30 20 10 00  =p3
+        punpckhdq   mm1,        mm2                         ; 71 61 51 41 31 21 11 01  =p2
+
+        movq        [rdx],      mm0                         ; save p3
+        movq        [rdx+8],    mm1                         ; save p2
+
+        movq        mm2,        mm1                         ; 71 61 51 41 31 21 11 01  =p2
+        psubusb     mm2,        mm0                         ; p2-p3
+
+        psubusb     mm0,        mm1                         ; p3-p2
+        por         mm0,        mm2                         ; mm0=abs(p3-p2)
+
+        movq        mm2,        mm3                         ; 33 23 13 03 32 22 12 02
+        punpckldq   mm2,        mm4                         ; 72 62 52 42 32 22 12 02 = p1
+
+        punpckhdq   mm3,        mm4                         ; 73 63 53 43 33 23 13 03 = p0
+        movq        [rdx+24],   mm3                         ; save p0
+
+        movq        [rdx+16],   mm2                         ; save p1
+        movq        mm5,        mm2                         ; mm5 = p1
+
+        psubusb     mm2,        mm1                         ; p1-p2
+        psubusb     mm1,        mm5                         ; p2-p1
+
+        por         mm1,        mm2                         ; mm1=abs(p2-p1)
+        mov         rdx,        arg(3) ;limit
+
+        movq        mm4,        [rdx]                       ; mm4 = limit
+        psubusb     mm7,        mm4                         ; abs(q3-q2) > limit
+
+        psubusb     mm0,        mm4                         ; abs(p3-p2) > limit
+        psubusb     mm1,        mm4                         ; abs(p2-p1) > limit
+
+        psubusb     mm6,        mm4                         ; abs(q2-q1) > limit
+        por         mm7,        mm6                         ; or
+
+        por         mm0,        mm1                         ;
+        por         mm0,        mm7                         ; abs(q3-q2) > limit || abs(p3-p2) > limit ||abs(p2-p1) > limit || abs(q2-q1) > limit
+
+        movq        mm1,        mm5                         ; p1
+
+        movq        mm7,        mm3                         ; mm3=mm7=p0
+        psubusb     mm7,        mm5                         ; p0 - p1
+
+        psubusb     mm5,        mm3                         ; p1 - p0
+        por         mm5,        mm7                         ; abs(p1-p0)
+
+        movq        t0,         mm5                         ; save abs(p1-p0)
+        lea         rdx,        srct
+
+        psubusb     mm5,        mm4                         ; mm5 = abs(p1-p0) > limit
+        por         mm0,        mm5                         ; mm0=mask
+
+        movq        mm5,        [rdx+32]                    ; mm5=q0
+        movq        mm7,        [rdx+40]                    ; mm7=q1
+
+        movq        mm6,        mm5                         ; mm6=q0
+        movq        mm2,        mm7                         ; q1
+        psubusb     mm5,        mm7                         ; q0-q1
+
+        psubusb     mm7,        mm6                         ; q1-q0
+        por         mm7,        mm5                         ; abs(q1-q0)
+
+        movq        t1,         mm7                         ; save abs(q1-q0)
+        psubusb     mm7,        mm4                         ; mm7=abs(q1-q0)> limit
+
+        por         mm0,        mm7                         ; mask
+
+        movq        mm5,        mm2                         ; q1
+        psubusb     mm5,        mm1                         ; q1-=p1
+        psubusb     mm1,        mm2                         ; p1-=q1
+        por         mm5,        mm1                         ; abs(p1-q1)
+        pand        mm5,        [GLOBAL(tfe)]               ; set lsb of each byte to zero
+        psrlw       mm5,        1                           ; abs(p1-q1)/2
+
+        mov         rdx,        arg(2) ;blimit                      ;
+
+        movq        mm4,        [rdx]                       ;blimit
+        movq        mm1,        mm3                         ; mm1=mm3=p0
+
+        movq        mm7,        mm6                         ; mm7=mm6=q0
+        psubusb     mm1,        mm7                         ; p0-q0
+
+        psubusb     mm7,        mm3                         ; q0-p0
+        por         mm1,        mm7                         ; abs(q0-p0)
+        paddusb     mm1,        mm1                         ; abs(q0-p0)*2
+        paddusb     mm1,        mm5                         ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        psubusb     mm1,        mm4                         ; abs (p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        por         mm1,        mm0;                        ; mask
+
+        pxor        mm0,        mm0
+        pcmpeqb     mm1,        mm0
+
+        ; calculate high edge variance
+        mov         rdx,        arg(4) ;thresh            ; get thresh
+        movq        mm7,        [rdx]
+        ;
+        movq        mm4,        t0              ; get abs (q1 - q0)
+        psubusb     mm4,        mm7             ; abs(q1 - q0) > thresh
+
+        movq        mm3,        t1              ; get abs (p1 - p0)
+        psubusb     mm3,        mm7             ; abs(p1 - p0)> thresh
+
+        por         mm4,        mm3             ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
+        pcmpeqb     mm4,        mm0
+
+        pcmpeqb     mm0,        mm0
+        pxor        mm4,        mm0
+
+
+
+
+        ; start work on filters
+        lea         rdx,        srct
+
+        ; start work on filters
+        movq        mm2, [rdx+16]         ; p1
+        movq        mm7, [rdx+40]         ; q1
+        pxor        mm2, [GLOBAL(t80)]    ; p1 offset to convert to signed values
+        pxor        mm7, [GLOBAL(t80)]    ; q1 offset to convert to signed values
+        psubsb      mm2, mm7              ; p1 - q1
+
+        movq        mm6, [rdx+24]         ; p0
+        movq        mm0, [rdx+32]         ; q0
+        pxor        mm6, [GLOBAL(t80)]    ; offset to convert to signed values
+        pxor        mm0, [GLOBAL(t80)]    ; offset to convert to signed values
+
+        movq        mm3, mm0              ; q0
+        psubsb      mm0, mm6              ; q0 - p0
+        paddsb      mm2, mm0              ; 1 * (q0 - p0) + (p1 - q1)
+        paddsb      mm2, mm0              ; 2 * (q0 - p0)
+        paddsb      mm2, mm0              ; 3 * (q0 - p0) + (p1 - q1)
+        pand       mm1, mm2           ; mask filter values we don't care about
+
+        ; mm1 = vp8_filter, mm4=hev, mm6=ps0, mm3=qs0
+        movq        mm2, mm1              ; vp8_filter
+        pand        mm2, mm4;             ; Filter2 = vp8_filter & hev
+
+        movq        mm5,        mm2       ;
+        paddsb      mm5,        [GLOBAL(t3)];
+
+        pxor        mm0, mm0              ; 0
+        pxor        mm7, mm7              ; 0
+
+        punpcklbw   mm0, mm5              ; e0f0g0h0
+        psraw       mm0, 11               ; sign extended shift right by 3
+        punpckhbw   mm7, mm5              ; a0b0c0d0
+        psraw       mm7, 11               ; sign extended shift right by 3
+        packsswb    mm0, mm7              ; Filter2 >>=3;
+
+        movq        mm5, mm0              ; Filter2
+
+        paddsb      mm2, [GLOBAL(t4)]     ; vp8_signed_char_clamp(Filter2 + 4)
+        pxor        mm0, mm0              ; 0
+        pxor        mm7, mm7              ; 0
+
+        punpcklbw   mm0, mm2              ; e0f0g0h0
+        psraw       mm0, 11               ; sign extended shift right by 3
+        punpckhbw   mm7, mm2              ; a0b0c0d0
+        psraw       mm7, 11               ; sign extended shift right by 3
+        packsswb    mm0, mm7              ; Filter2 >>=3;
+
+        ; mm0= filter2 mm1 = vp8_filter,  mm3 =qs0 mm5=s mm4 =hev mm6=ps0
+        psubsb      mm3, mm0              ; qs0 =qs0 - filter1
+        paddsb      mm6, mm5              ; ps0 =ps0 + Fitler2
+
+        ; mm1=vp8_filter, mm3=qs0, mm4 =hev mm6=ps0
+        ; vp8_filter &= ~hev;
+        ; Filter2 = vp8_filter;
+        pandn       mm4, mm1              ; vp8_filter&=~hev
+
+
+        ; mm3=qs0, mm4=filter2, mm6=ps0
+
+        ; u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7);
+        ; s = vp8_signed_char_clamp(qs0 - u);
+        ; *oq0 = s^0x80;
+        ; s = vp8_signed_char_clamp(ps0 + u);
+        ; *op0 = s^0x80;
+        pxor        mm0, mm0
+
+        pxor        mm1, mm1
+        pxor        mm2, mm2
+        punpcklbw   mm1, mm4
+        punpckhbw   mm2, mm4
+        pmulhw      mm1, [GLOBAL(s27)]
+        pmulhw      mm2, [GLOBAL(s27)]
+        paddw       mm1, [GLOBAL(s63)]
+        paddw       mm2, [GLOBAL(s63)]
+        psraw       mm1, 7
+        psraw       mm2, 7
+        packsswb    mm1, mm2
+
+        psubsb      mm3, mm1
+        paddsb      mm6, mm1
+
+        pxor        mm3, [GLOBAL(t80)]
+        pxor        mm6, [GLOBAL(t80)]
+        movq        [rdx+24], mm6
+        movq        [rdx+32], mm3
+
+        ; roughly 2/7th difference across boundary
+        ; u = vp8_signed_char_clamp((63 + Filter2 * 18)>>7);
+        ; s = vp8_signed_char_clamp(qs1 - u);
+        ; *oq1 = s^0x80;
+        ; s = vp8_signed_char_clamp(ps1 + u);
+        ; *op1 = s^0x80;
+        pxor        mm1, mm1
+        pxor        mm2, mm2
+        punpcklbw   mm1, mm4
+        punpckhbw   mm2, mm4
+        pmulhw      mm1, [GLOBAL(s18)]
+        pmulhw      mm2, [GLOBAL(s18)]
+        paddw       mm1, [GLOBAL(s63)]
+        paddw       mm2, [GLOBAL(s63)]
+        psraw       mm1, 7
+        psraw       mm2, 7
+        packsswb    mm1, mm2
+
+        movq        mm3, [rdx + 40]
+        movq        mm6, [rdx + 16]       ; p1
+        pxor        mm3, [GLOBAL(t80)]
+        pxor        mm6, [GLOBAL(t80)]
+
+        paddsb      mm6, mm1
+        psubsb      mm3, mm1
+
+        pxor        mm6, [GLOBAL(t80)]
+        pxor        mm3, [GLOBAL(t80)]
+        movq        [rdx + 40], mm3
+        movq        [rdx + 16], mm6
+
+        ; roughly 1/7th difference across boundary
+        ; u = vp8_signed_char_clamp((63 + Filter2 * 9)>>7);
+        ; s = vp8_signed_char_clamp(qs2 - u);
+        ; *oq2 = s^0x80;
+        ; s = vp8_signed_char_clamp(ps2 + u);
+        ; *op2 = s^0x80;
+        pxor        mm1, mm1
+        pxor        mm2, mm2
+        punpcklbw   mm1, mm4
+        punpckhbw   mm2, mm4
+        pmulhw      mm1, [GLOBAL(s9)]
+        pmulhw      mm2, [GLOBAL(s9)]
+        paddw       mm1, [GLOBAL(s63)]
+        paddw       mm2, [GLOBAL(s63)]
+        psraw       mm1, 7
+        psraw       mm2, 7
+        packsswb    mm1, mm2
+
+        movq        mm6, [rdx+ 8]
+        movq        mm3, [rdx+48]
+
+        pxor        mm6, [GLOBAL(t80)]
+        pxor        mm3, [GLOBAL(t80)]
+
+        paddsb      mm6, mm1
+        psubsb      mm3, mm1
+
+        pxor        mm6, [GLOBAL(t80)]          ; mm6 = 71 61 51 41 31 21 11 01
+        pxor        mm3, [GLOBAL(t80)]          ; mm3 = 76 66 56 46 36 26 15 06
+
+        ; transpose and write back
+        movq        mm0,    [rdx]               ; mm0 = 70 60 50 40 30 20 10 00
+        movq        mm1,    mm0                 ; mm0 = 70 60 50 40 30 20 10 00
+
+        punpcklbw   mm0,    mm6                 ; mm0 = 31 30 21 20 11 10 01 00
+        punpckhbw   mm1,    mm6                 ; mm3 = 71 70 61 60 51 50 41 40
+
+        movq        mm2,    [rdx+16]            ; mm2 = 72 62 52 42 32 22 12 02
+        movq        mm6,    mm2                 ; mm3 = 72 62 52 42 32 22 12 02
+
+        punpcklbw   mm2,    [rdx+24]            ; mm2 = 33 32 23 22 13 12 03 02
+        punpckhbw   mm6,    [rdx+24]            ; mm3 = 73 72 63 62 53 52 43 42
+
+        movq        mm5,    mm0                 ; mm5 = 31 30 21 20 11 10 01 00
+        punpcklwd   mm0,    mm2                 ; mm0 = 13 12 11 10 03 02 01 00
+
+        punpckhwd   mm5,    mm2                 ; mm5 = 33 32 31 30 23 22 21 20
+        movq        mm4,    mm1                 ; mm4 = 71 70 61 60 51 50 41 40
+
+        punpcklwd   mm1,    mm6                 ; mm1 = 53 52 51 50 43 42 41 40
+        punpckhwd   mm4,    mm6                 ; mm4 = 73 72 71 70 63 62 61 60
+
+        movq        mm2,    [rdx+32]            ; mm2 = 74 64 54 44 34 24 14 04
+        punpcklbw   mm2,    [rdx+40]            ; mm2 = 35 34 25 24 15 14 05 04
+
+        movq        mm6,    mm3                 ; mm6 = 76 66 56 46 36 26 15 06
+        punpcklbw   mm6,    [rdx+56]            ; mm6 = 37 36 27 26 17 16 07 06
+
+        movq        mm7,    mm2                 ; mm7 = 35 34 25 24 15 14 05 04
+        punpcklwd   mm2,    mm6                 ; mm2 = 17 16 15 14 07 06 05 04
+
+        punpckhwd   mm7,    mm6                 ; mm7 = 37 36 35 34 27 26 25 24
+        movq        mm6,    mm0                 ; mm6 = 13 12 11 10 03 02 01 00
+
+        punpckldq   mm0,    mm2                 ; mm0 = 07 06 05 04 03 02 01 00
+        punpckhdq   mm6,    mm2                 ; mm6 = 17 16 15 14 13 12 11 10
+
+        movq        [rsi+rax*4], mm0            ; write out
+        movq        [rdi+rax*4], mm6            ; write out
+
+        movq        mm0,    mm5                 ; mm0 = 33 32 31 30 23 22 21 20
+        punpckldq   mm0,    mm7                 ; mm0 = 27 26 25 24 23 22 20 20
+
+        punpckhdq   mm5,    mm7                 ; mm5 = 37 36 35 34 33 32 31 30
+        movq        [rsi+rax*2], mm0            ; write out
+
+        movq        [rdi+rax*2], mm5            ; write out
+        movq        mm2,    [rdx+32]            ; mm2 = 74 64 54 44 34 24 14 04
+
+        punpckhbw   mm2,    [rdx+40]            ; mm2 = 75 74 65 64 54 54 45 44
+        punpckhbw   mm3,    [rdx+56]            ; mm3 = 77 76 67 66 57 56 47 46
+
+        movq        mm5,    mm2                 ; mm5 = 75 74 65 64 54 54 45 44
+        punpcklwd   mm2,    mm3                 ; mm2 = 57 56 55 54 47 46 45 44
+
+        punpckhwd   mm5,    mm3                 ; mm5 = 77 76 75 74 67 66 65 64
+        movq        mm0,    mm1                 ; mm0=  53 52 51 50 43 42 41 40
+
+        movq        mm3,    mm4                 ; mm4 = 73 72 71 70 63 62 61 60
+        punpckldq   mm0,    mm2                 ; mm0 = 47 46 45 44 43 42 41 40
+
+        punpckhdq   mm1,    mm2                 ; mm1 = 57 56 55 54 53 52 51 50
+        movq        [rsi],  mm0                 ; write out
+
+        movq        [rdi],  mm1                 ; write out
+        neg         rax
+
+        punpckldq   mm3,    mm5                 ; mm3 = 67 66 65 64 63 62 61 60
+        punpckhdq   mm4,    mm5                 ; mm4 = 77 76 75 74 73 72 71 60
+
+        movq        [rsi+rax*2], mm3
+        movq        [rdi+rax*2], mm4
+
+        lea         rsi,        [rsi+rax*8]
+        dec         rcx
+
+        jnz         .next8_mbv
+
+    add rsp, 96
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_loop_filter_simple_horizontal_edge_mmx
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit
+;)
+global sym(vp8_loop_filter_simple_horizontal_edge_mmx) PRIVATE
+sym(vp8_loop_filter_simple_horizontal_edge_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi, arg(0) ;src_ptr
+        movsxd      rax, dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        mov         rcx, 2                ; count
+.nexts8_h:
+        mov         rdx, arg(2) ;blimit           ; get blimit
+        movq        mm3, [rdx]            ;
+
+        mov         rdi, rsi              ; rdi points to row +1 for indirect addressing
+        add         rdi, rax
+        neg         rax
+
+        ; calculate mask
+        movq        mm1, [rsi+2*rax]      ; p1
+        movq        mm0, [rdi]            ; q1
+        movq        mm2, mm1
+        movq        mm7, mm0
+        movq        mm4, mm0
+        psubusb     mm0, mm1              ; q1-=p1
+        psubusb     mm1, mm4              ; p1-=q1
+        por         mm1, mm0              ; abs(p1-q1)
+        pand        mm1, [GLOBAL(tfe)]    ; set lsb of each byte to zero
+        psrlw       mm1, 1                ; abs(p1-q1)/2
+
+        movq        mm5, [rsi+rax]        ; p0
+        movq        mm4, [rsi]            ; q0
+        movq        mm0, mm4              ; q0
+        movq        mm6, mm5              ; p0
+        psubusb     mm5, mm4              ; p0-=q0
+        psubusb     mm4, mm6              ; q0-=p0
+        por         mm5, mm4              ; abs(p0 - q0)
+        paddusb     mm5, mm5              ; abs(p0-q0)*2
+        paddusb     mm5, mm1              ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        psubusb     mm5, mm3              ; abs(p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        pxor        mm3, mm3
+        pcmpeqb     mm5, mm3
+
+        ; start work on filters
+        pxor        mm2, [GLOBAL(t80)]    ; p1 offset to convert to signed values
+        pxor        mm7, [GLOBAL(t80)]    ; q1 offset to convert to signed values
+        psubsb      mm2, mm7              ; p1 - q1
+
+        pxor        mm6, [GLOBAL(t80)]    ; offset to convert to signed values
+        pxor        mm0, [GLOBAL(t80)]    ; offset to convert to signed values
+        movq        mm3, mm0              ; q0
+        psubsb      mm0, mm6              ; q0 - p0
+        paddsb      mm2, mm0              ; p1 - q1 + 1 * (q0 - p0)
+        paddsb      mm2, mm0              ; p1 - q1 + 2 * (q0 - p0)
+        paddsb      mm2, mm0              ; p1 - q1 + 3 * (q0 - p0)
+        pand        mm5, mm2              ; mask filter values we don't care about
+
+        ; do + 4 side
+        paddsb      mm5, [GLOBAL(t4)]     ; 3* (q0 - p0) + (p1 - q1) + 4
+
+        movq        mm0, mm5              ; get a copy of filters
+        psllw       mm0, 8                ; shift left 8
+        psraw       mm0, 3                ; arithmetic shift right 11
+        psrlw       mm0, 8
+        movq        mm1, mm5              ; get a copy of filters
+        psraw       mm1, 11               ; arithmetic shift right 11
+        psllw       mm1, 8                ; shift left 8 to put it back
+
+        por         mm0, mm1              ; put the two together to get result
+
+        psubsb      mm3, mm0              ; q0-= q0 add
+        pxor        mm3, [GLOBAL(t80)]    ; unoffset
+        movq        [rsi], mm3            ; write back
+
+
+        ; now do +3 side
+        psubsb      mm5, [GLOBAL(t1s)]     ; +3 instead of +4
+
+        movq        mm0, mm5              ; get a copy of filters
+        psllw       mm0, 8                ; shift left 8
+        psraw       mm0, 3                ; arithmetic shift right 11
+        psrlw       mm0, 8
+        psraw       mm5, 11               ; arithmetic shift right 11
+        psllw       mm5, 8                ; shift left 8 to put it back
+        por         mm0, mm5              ; put the two together to get result
+
+
+        paddsb      mm6, mm0              ; p0+= p0 add
+        pxor        mm6, [GLOBAL(t80)]    ; unoffset
+        movq        [rsi+rax], mm6        ; write back
+
+        add         rsi,8
+        neg         rax
+        dec         rcx
+        jnz         .nexts8_h
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_loop_filter_simple_vertical_edge_mmx
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit
+;)
+global sym(vp8_loop_filter_simple_vertical_edge_mmx) PRIVATE
+sym(vp8_loop_filter_simple_vertical_edge_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub          rsp, 32      ; reserve 32 bytes
+    %define t0   [rsp + 0]    ;__declspec(align(16)) char t0[8];
+    %define t1   [rsp + 16]   ;__declspec(align(16)) char t1[8];
+
+        mov         rsi, arg(0) ;src_ptr
+        movsxd      rax, dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        lea         rsi, [rsi + rax*4- 2];  ;
+        mov         rcx, 2                                      ; count
+.nexts8_v:
+
+        lea         rdi,        [rsi + rax];
+        movd        mm0,        [rdi + rax * 2]                 ; xx xx xx xx 73 72 71 70
+
+        movd        mm6,        [rsi + rax * 2]                 ; xx xx xx xx 63 62 61 60
+        punpcklbw   mm6,        mm0                             ; 73 63 72 62 71 61 70 60
+
+        movd        mm0,        [rsi + rax]                     ; xx xx xx xx 53 52 51 50
+        movd        mm4,        [rsi]                           ; xx xx xx xx 43 42 41 40
+
+        punpcklbw   mm4,        mm0                             ; 53 43 52 42 51 41 50 40
+        movq        mm5,        mm4                             ; 53 43 52 42 51 41 50 40
+
+        punpcklwd   mm4,        mm6                             ; 71 61 51 41 70 60 50 40
+        punpckhwd   mm5,        mm6                             ; 73 63 53 43 72 62 52 42
+
+        neg         rax
+
+        movd        mm7,        [rsi + rax]                     ; xx xx xx xx 33 32 31 30
+        movd        mm6,        [rsi + rax * 2]                 ; xx xx xx xx 23 22 21 20
+
+        punpcklbw   mm6,        mm7                             ; 33 23 32 22 31 21 30 20
+        movd        mm1,        [rdi + rax * 4]                 ; xx xx xx xx 13 12 11 10
+
+        movd        mm0,        [rsi + rax * 4]                 ; xx xx xx xx 03 02 01 00
+        punpcklbw   mm0,        mm1                             ; 13 03 12 02 11 01 10 00
+
+        movq        mm2,        mm0                             ; 13 03 12 02 11 01 10 00
+        punpcklwd   mm0,        mm6                             ; 31 21 11 01 30 20 10 00
+
+        punpckhwd   mm2,        mm6                             ; 33 23 13 03 32 22 12 02
+        movq        mm1,        mm0                             ; 13 03 12 02 11 01 10 00
+
+        punpckldq   mm0,        mm4                             ; 70 60 50 40 30 20 10 00       = p1
+        movq        mm3,        mm2                             ; 33 23 13 03 32 22 12 02
+
+        punpckhdq   mm1,        mm4                             ; 71 61 51 41 31 21 11 01       = p0
+        punpckldq   mm2,        mm5                             ; 72 62 52 42 32 22 12 02       = q0
+
+        punpckhdq   mm3,        mm5                             ; 73 63 53 43 33 23 13 03       = q1
+
+
+        ; calculate mask
+        movq        mm6,        mm0                             ; p1
+        movq        mm7,        mm3                             ; q1
+        psubusb     mm7,        mm6                             ; q1-=p1
+        psubusb     mm6,        mm3                             ; p1-=q1
+        por         mm6,        mm7                             ; abs(p1-q1)
+        pand        mm6,        [GLOBAL(tfe)]                   ; set lsb of each byte to zero
+        psrlw       mm6,        1                               ; abs(p1-q1)/2
+
+        movq        mm5,        mm1                             ; p0
+        movq        mm4,        mm2                             ; q0
+
+        psubusb     mm5,        mm2                             ; p0-=q0
+        psubusb     mm4,        mm1                             ; q0-=p0
+
+        por         mm5,        mm4                             ; abs(p0 - q0)
+        paddusb     mm5,        mm5                             ; abs(p0-q0)*2
+        paddusb     mm5,        mm6                             ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        mov         rdx,        arg(2) ;blimit                          ; get blimit
+        movq        mm7,        [rdx]
+
+        psubusb     mm5,        mm7                             ; abs(p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        pxor        mm7,        mm7
+        pcmpeqb     mm5,        mm7                             ; mm5 = mask
+
+        ; start work on filters
+        movq        t0,         mm0
+        movq        t1,         mm3
+
+        pxor        mm0,        [GLOBAL(t80)]                   ; p1 offset to convert to signed values
+        pxor        mm3,        [GLOBAL(t80)]                   ; q1 offset to convert to signed values
+
+        psubsb      mm0,        mm3                             ; p1 - q1
+        movq        mm6,        mm1                             ; p0
+
+        movq        mm7,        mm2                             ; q0
+        pxor        mm6,        [GLOBAL(t80)]                   ; offset to convert to signed values
+
+        pxor        mm7,        [GLOBAL(t80)]                   ; offset to convert to signed values
+        movq        mm3,        mm7                             ; offseted ; q0
+
+        psubsb      mm7,        mm6                             ; q0 - p0
+        paddsb      mm0,        mm7                             ; p1 - q1 + 1 * (q0 - p0)
+
+        paddsb      mm0,        mm7                             ; p1 - q1 + 2 * (q0 - p0)
+        paddsb      mm0,        mm7                             ; p1 - q1 + 3 * (q0 - p0)
+
+        pand        mm5,        mm0                             ; mask filter values we don't care about
+
+        paddsb      mm5,        [GLOBAL(t4)]                    ;  3* (q0 - p0) + (p1 - q1) + 4
+
+        movq        mm0,        mm5                             ; get a copy of filters
+        psllw       mm0,        8                               ; shift left 8
+        psraw       mm0,        3                               ; arithmetic shift right 11
+        psrlw       mm0,        8
+
+        movq        mm7,        mm5                             ; get a copy of filters
+        psraw       mm7,        11                              ; arithmetic shift right 11
+        psllw       mm7,        8                               ; shift left 8 to put it back
+
+        por         mm0,        mm7                             ; put the two together to get result
+
+        psubsb      mm3,        mm0                             ; q0-= q0sz add
+        pxor        mm3,        [GLOBAL(t80)]                   ; unoffset
+
+        ; now do +3 side
+        psubsb      mm5, [GLOBAL(t1s)]                          ; +3 instead of +4
+
+        movq        mm0, mm5                                    ; get a copy of filters
+        psllw       mm0, 8                                      ; shift left 8
+        psraw       mm0, 3                                      ; arithmetic shift right 11
+        psrlw       mm0, 8
+
+        psraw       mm5, 11                                     ; arithmetic shift right 11
+        psllw       mm5, 8                                      ; shift left 8 to put it back
+        por         mm0, mm5                                    ; put the two together to get result
+
+        paddsb      mm6, mm0                                    ; p0+= p0 add
+        pxor        mm6, [GLOBAL(t80)]                          ; unoffset
+
+
+        movq        mm0,        t0
+        movq        mm4,        t1
+
+        ; mm0 = 70 60 50 40 30 20 10 00
+        ; mm6 = 71 61 51 41 31 21 11 01
+        ; mm3 = 72 62 52 42 32 22 12 02
+        ; mm4 = 73 63 53 43 33 23 13 03
+        ; transpose back to write out
+
+        movq        mm1,        mm0                         ;
+        punpcklbw   mm0,        mm6                         ; 31 30 21 20 11 10 01 00
+
+        punpckhbw   mm1,        mm6                         ; 71 70 61 60 51 50 41 40
+        movq        mm2,        mm3                         ;
+
+        punpcklbw   mm2,        mm4                         ; 33 32 23 22 13 12 03 02
+        movq        mm5,        mm1                         ; 71 70 61 60 51 50 41 40
+
+        punpckhbw   mm3,        mm4                         ; 73 72 63 62 53 52 43 42
+        movq        mm6,        mm0                         ; 31 30 21 20 11 10 01 00
+
+        punpcklwd   mm0,        mm2                         ; 13 12 11 10 03 02 01 00
+        punpckhwd   mm6,        mm2                         ; 33 32 31 30 23 22 21 20
+
+        movd        [rsi+rax*4], mm0                        ; write 03 02 01 00
+        punpcklwd   mm1,        mm3                         ; 53 52 51 50 43 42 41 40
+
+        psrlq       mm0,        32                          ; xx xx xx xx 13 12 11 10
+        punpckhwd   mm5,        mm3                         ; 73 72 71 70 63 62 61 60
+
+        movd        [rdi+rax*4], mm0                        ; write 13 12 11 10
+        movd        [rsi+rax*2], mm6                        ; write 23 22 21 20
+
+        psrlq       mm6,        32                          ; 33 32 31 30
+        movd        [rsi],      mm1                         ; write 43 42 41 40
+
+        movd        [rsi + rax], mm6                        ; write 33 32 31 30
+        neg         rax
+
+        movd        [rsi + rax*2], mm5                      ; write 63 62 61 60
+        psrlq       mm1,        32                          ; 53 52 51 50
+
+        movd        [rdi],      mm1                         ; write out 53 52 51 50
+        psrlq       mm5,        32                          ; 73 72 71 70
+
+        movd        [rdi + rax*2], mm5                      ; write 73 72 71 70
+
+        lea         rsi,        [rsi+rax*8]                 ; next 8
+
+        dec         rcx
+        jnz         .nexts8_v
+
+    add rsp, 32
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+
+;void fast_loop_filter_vertical_edges_mmx(unsigned char *y_ptr,
+;                  int y_stride,
+;                  loop_filter_info *lfi)
+;{
+;
+;
+;    vp8_loop_filter_simple_vertical_edge_mmx(y_ptr+4, y_stride, lfi->flim,lfi->lim,lfi->thr,2);
+;    vp8_loop_filter_simple_vertical_edge_mmx(y_ptr+8, y_stride, lfi->flim,lfi->lim,lfi->thr,2);
+;    vp8_loop_filter_simple_vertical_edge_mmx(y_ptr+12, y_stride, lfi->flim,lfi->lim,lfi->thr,2);
+;}
+
+SECTION_RODATA
+align 16
+tfe:
+    times 8 db 0xfe
+align 16
+t80:
+    times 8 db 0x80
+align 16
+t1s:
+    times 8 db 0x01
+align 16
+t3:
+    times 8 db 0x03
+align 16
+t4:
+    times 8 db 0x04
+align 16
+ones:
+    times 4 dw 0x0001
+align 16
+s27:
+    times 4 dw 0x1b00
+align 16
+s18:
+    times 4 dw 0x1200
+align 16
+s9:
+    times 4 dw 0x0900
+align 16
+s63:
+    times 4 dw 0x003f
diff --git a/media/libvpx/vp8/common/x86/loopfilter_sse2.asm b/media/libvpx/vp8/common/x86/loopfilter_sse2.asm
new file mode 100644
index 000000000..1913abc69
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/loopfilter_sse2.asm
@@ -0,0 +1,1640 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+%define _t0 0
+%define _t1 _t0 + 16
+%define _p3 _t1 + 16
+%define _p2 _p3 + 16
+%define _p1 _p2 + 16
+%define _p0 _p1 + 16
+%define _q0 _p0 + 16
+%define _q1 _q0 + 16
+%define _q2 _q1 + 16
+%define _q3 _q2 + 16
+%define lf_var_size 160
+
+; Use of pmaxub instead of psubusb to compute filter mask was seen
+; in ffvp8
+
+%macro LFH_FILTER_AND_HEV_MASK 1
+%if %1
+        movdqa      xmm2,                   [rdi+2*rax]       ; q3
+        movdqa      xmm1,                   [rsi+2*rax]       ; q2
+        movdqa      xmm4,                   [rsi+rax]         ; q1
+        movdqa      xmm5,                   [rsi]             ; q0
+        neg         rax                     ; negate pitch to deal with above border
+%else
+        movlps      xmm2,                   [rsi + rcx*2]     ; q3
+        movlps      xmm1,                   [rsi + rcx]       ; q2
+        movlps      xmm4,                   [rsi]             ; q1
+        movlps      xmm5,                   [rsi + rax]       ; q0
+
+        movhps      xmm2,                   [rdi + rcx*2]
+        movhps      xmm1,                   [rdi + rcx]
+        movhps      xmm4,                   [rdi]
+        movhps      xmm5,                   [rdi + rax]
+
+        lea         rsi,                    [rsi + rax*4]
+        lea         rdi,                    [rdi + rax*4]
+
+        movdqa      [rsp+_q2],              xmm1              ; store q2
+        movdqa      [rsp+_q1],              xmm4              ; store q1
+%endif
+        movdqa      xmm7,                   [rdx]             ;limit
+
+        movdqa      xmm6,                   xmm1              ; q2
+        movdqa      xmm3,                   xmm4              ; q1
+
+        psubusb     xmm1,                   xmm2              ; q2-=q3
+        psubusb     xmm2,                   xmm6              ; q3-=q2
+
+        psubusb     xmm4,                   xmm6              ; q1-=q2
+        psubusb     xmm6,                   xmm3              ; q2-=q1
+
+        por         xmm4,                   xmm6              ; abs(q2-q1)
+        por         xmm1,                   xmm2              ; abs(q3-q2)
+
+        movdqa      xmm0,                   xmm5              ; q0
+        pmaxub      xmm1,                   xmm4
+
+        psubusb     xmm5,                   xmm3              ; q0-=q1
+        psubusb     xmm3,                   xmm0              ; q1-=q0
+
+        por         xmm5,                   xmm3              ; abs(q0-q1)
+        movdqa      [rsp+_t0],              xmm5              ; save to t0
+
+        pmaxub      xmm1,                   xmm5
+
+%if %1
+        movdqa      xmm2,                   [rsi+4*rax]       ; p3
+        movdqa      xmm4,                   [rdi+4*rax]       ; p2
+        movdqa      xmm6,                   [rsi+2*rax]       ; p1
+%else
+        movlps      xmm2,                   [rsi + rax]       ; p3
+        movlps      xmm4,                   [rsi]             ; p2
+        movlps      xmm6,                   [rsi + rcx]       ; p1
+
+        movhps      xmm2,                   [rdi + rax]
+        movhps      xmm4,                   [rdi]
+        movhps      xmm6,                   [rdi + rcx]
+
+        movdqa      [rsp+_p2],              xmm4              ; store p2
+        movdqa      [rsp+_p1],              xmm6              ; store p1
+%endif
+
+        movdqa      xmm5,                   xmm4              ; p2
+        movdqa      xmm3,                   xmm6              ; p1
+
+        psubusb     xmm4,                   xmm2              ; p2-=p3
+        psubusb     xmm2,                   xmm5              ; p3-=p2
+
+        psubusb     xmm3,                   xmm5              ; p1-=p2
+        pmaxub      xmm1,                   xmm4              ; abs(p3 - p2)
+
+        psubusb     xmm5,                   xmm6              ; p2-=p1
+        pmaxub      xmm1,                   xmm2              ; abs(p3 - p2)
+
+        pmaxub      xmm1,                   xmm5              ; abs(p2 - p1)
+        movdqa      xmm2,                   xmm6              ; p1
+
+        pmaxub      xmm1,                   xmm3              ; abs(p2 - p1)
+%if %1
+        movdqa      xmm4,                   [rsi+rax]         ; p0
+        movdqa      xmm3,                   [rdi]             ; q1
+%else
+        movlps      xmm4,                   [rsi + rcx*2]     ; p0
+        movhps      xmm4,                   [rdi + rcx*2]
+        movdqa      xmm3,                   [rsp+_q1]                ; q1
+%endif
+
+        movdqa      xmm5,                   xmm4              ; p0
+        psubusb     xmm4,                   xmm6              ; p0-=p1
+
+        psubusb     xmm6,                   xmm5              ; p1-=p0
+
+        por         xmm6,                   xmm4              ; abs(p1 - p0)
+        mov         rdx,                    arg(2)            ; get blimit
+
+        movdqa     [rsp+_t1],               xmm6              ; save to t1
+
+        movdqa      xmm4,                   xmm3              ; q1
+        pmaxub      xmm1,                   xmm6
+
+        psubusb     xmm3,                   xmm2              ; q1-=p1
+        psubusb     xmm2,                   xmm4              ; p1-=q1
+
+        psubusb     xmm1,                   xmm7
+        por         xmm2,                   xmm3              ; abs(p1-q1)
+
+        movdqa      xmm7,                   [rdx]             ; blimit
+        mov         rdx,                    arg(4)            ; hev get thresh
+
+        movdqa      xmm3,                   xmm0              ; q0
+        pand        xmm2,                   [GLOBAL(tfe)]     ; set lsb of each byte to zero
+
+        movdqa      xmm6,                   xmm5              ; p0
+        psrlw       xmm2,                   1                 ; abs(p1-q1)/2
+
+        psubusb     xmm5,                   xmm3              ; p0-=q0
+        psubusb     xmm3,                   xmm6              ; q0-=p0
+        por         xmm5,                   xmm3              ; abs(p0 - q0)
+
+        paddusb     xmm5,                   xmm5              ; abs(p0-q0)*2
+
+        movdqa      xmm4,                   [rsp+_t0]                ; hev get abs (q1 - q0)
+        movdqa      xmm3,                   [rsp+_t1]                ; get abs (p1 - p0)
+
+        paddusb     xmm5,                   xmm2              ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        movdqa      xmm2,                   [rdx]             ; hev
+
+        psubusb     xmm5,                   xmm7              ; abs (p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        psubusb     xmm4,                   xmm2              ; hev
+
+        psubusb     xmm3,                   xmm2              ; hev
+        por         xmm1,                   xmm5
+
+        pxor        xmm7,                   xmm7
+        paddb       xmm4,                   xmm3              ; hev abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
+
+        pcmpeqb     xmm4,                   xmm5              ; hev
+        pcmpeqb     xmm3,                   xmm3              ; hev
+
+        pcmpeqb     xmm1,                   xmm7              ; mask xmm1
+        pxor        xmm4,                   xmm3              ; hev
+%endmacro
+
+%macro B_FILTER 1
+        movdqa      xmm3,                   [GLOBAL(t80)]
+%if %1 == 0
+        movdqa      xmm2,                   [rsp+_p1]                ; p1
+        movdqa      xmm7,                   [rsp+_q1]                ; q1
+%elif %1 == 1
+        movdqa      xmm2,                   [rsi+2*rax]       ; p1
+        movdqa      xmm7,                   [rdi]             ; q1
+%elif %1 == 2
+        movdqa      xmm2,                   [rsp+_p1]         ; p1
+        movdqa      xmm6,                   [rsp+_p0]         ; p0
+        movdqa      xmm0,                   [rsp+_q0]         ; q0
+        movdqa      xmm7,                   [rsp+_q1]         ; q1
+%endif
+
+        pxor        xmm2,                   xmm3              ; p1 offset to convert to signed values
+        pxor        xmm7,                   xmm3              ; q1 offset to convert to signed values
+
+        psubsb      xmm2,                   xmm7              ; p1 - q1
+        pxor        xmm6,                   xmm3              ; offset to convert to signed values
+
+        pand        xmm2,                   xmm4              ; high var mask (hvm)(p1 - q1)
+        pxor        xmm0,                   xmm3              ; offset to convert to signed values
+
+        movdqa      xmm3,                   xmm0              ; q0
+        psubsb      xmm0,                   xmm6              ; q0 - p0
+        paddsb      xmm2,                   xmm0              ; 1 * (q0 - p0) + hvm(p1 - q1)
+        paddsb      xmm2,                   xmm0              ; 2 * (q0 - p0) + hvm(p1 - q1)
+        paddsb      xmm2,                   xmm0              ; 3 * (q0 - p0) + hvm(p1 - q1)
+        pand        xmm1,                   xmm2              ; mask filter values we don't care about
+
+        movdqa      xmm2,                   xmm1
+        paddsb      xmm1,                   [GLOBAL(t4)]      ; 3* (q0 - p0) + hvm(p1 - q1) + 4
+        paddsb      xmm2,                   [GLOBAL(t3)]      ; 3* (q0 - p0) + hvm(p1 - q1) + 3
+
+        punpckhbw   xmm5,                   xmm2              ; axbxcxdx
+        punpcklbw   xmm2,                   xmm2              ; exfxgxhx
+
+        punpcklbw   xmm0,                   xmm1              ; exfxgxhx
+        psraw       xmm5,                   11                ; sign extended shift right by 3
+
+        punpckhbw   xmm1,                   xmm1              ; axbxcxdx
+        psraw       xmm2,                   11                ; sign extended shift right by 3
+
+        packsswb    xmm2,                   xmm5              ; (3* (q0 - p0) + hvm(p1 - q1) + 3) >> 3;
+        psraw       xmm0,                   11                ; sign extended shift right by 3
+
+        psraw       xmm1,                   11                ; sign extended shift right by 3
+        movdqa      xmm5,                   xmm0              ; save results
+
+        packsswb    xmm0,                   xmm1              ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>3
+
+        paddsb      xmm6,                   xmm2              ; p0+= p0 add
+
+        movdqa      xmm2,                   [GLOBAL(ones)]
+        paddsw      xmm5,                   xmm2
+        paddsw      xmm1,                   xmm2
+        psraw       xmm5,                   1                 ; partial shifted one more time for 2nd tap
+        psraw       xmm1,                   1                 ; partial shifted one more time for 2nd tap
+        packsswb    xmm5,                   xmm1              ; (3* (q0 - p0) + hvm(p1 - q1) + 4) >>4
+        movdqa      xmm2,                   [GLOBAL(t80)]
+
+%if %1 == 0
+        movdqa      xmm1,                   [rsp+_p1]         ; p1
+        lea         rsi,                    [rsi + rcx*2]
+        lea         rdi,                    [rdi + rcx*2]
+%elif %1 == 1
+        movdqa      xmm1,                   [rsi+2*rax]       ; p1
+%elif %1 == 2
+        movdqa      xmm1,                   [rsp+_p1]         ; p1
+%endif
+
+        pandn       xmm4,                   xmm5              ; high edge variance additive
+        pxor        xmm6,                   xmm2              ; unoffset
+
+        pxor        xmm1,                   xmm2              ; reoffset
+        psubsb      xmm3,                   xmm0              ; q0-= q0 add
+
+        paddsb      xmm1,                   xmm4              ; p1+= p1 add
+        pxor        xmm3,                   xmm2              ; unoffset
+
+        pxor        xmm1,                   xmm2              ; unoffset
+        psubsb      xmm7,                   xmm4              ; q1-= q1 add
+
+        pxor        xmm7,                   xmm2              ; unoffset
+%if %1 == 0
+        movq        [rsi],                  xmm6              ; p0
+        movhps      [rdi],                  xmm6
+        movq        [rsi + rax],            xmm1              ; p1
+        movhps      [rdi + rax],            xmm1
+        movq        [rsi + rcx],            xmm3              ; q0
+        movhps      [rdi + rcx],            xmm3
+        movq        [rsi + rcx*2],          xmm7              ; q1
+        movhps      [rdi + rcx*2],          xmm7
+%elif %1 == 1
+        movdqa      [rsi+rax],              xmm6              ; write back
+        movdqa      [rsi+2*rax],            xmm1              ; write back
+        movdqa      [rsi],                  xmm3              ; write back
+        movdqa      [rdi],                  xmm7              ; write back
+%endif
+
+%endmacro
+
+%if ABI_IS_32BIT
+
+;void vp8_loop_filter_horizontal_edge_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;)
+global sym(vp8_loop_filter_horizontal_edge_sse2) PRIVATE
+sym(vp8_loop_filter_horizontal_edge_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, lf_var_size
+
+        mov         rsi,                    arg(0)           ;src_ptr
+        movsxd      rax,                    dword ptr arg(1) ;src_pixel_step
+
+        mov         rdx,                    arg(3)           ;limit
+
+        lea         rdi,                    [rsi+rax]        ; rdi points to row +1 for indirect addressing
+
+        ; calculate breakout conditions and high edge variance
+        LFH_FILTER_AND_HEV_MASK 1
+        ; filter and write back the result
+        B_FILTER 1
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+%endif
+
+;void vp8_loop_filter_horizontal_edge_uv_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;    int            count
+;)
+global sym(vp8_loop_filter_horizontal_edge_uv_sse2) PRIVATE
+sym(vp8_loop_filter_horizontal_edge_uv_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, lf_var_size
+
+        mov         rsi,                    arg(0)             ; u
+        mov         rdi,                    arg(5)             ; v
+        movsxd      rax,                    dword ptr arg(1)   ; src_pixel_step
+        mov         rcx,                    rax
+        neg         rax                     ; negate pitch to deal with above border
+
+        mov         rdx,                    arg(3)             ;limit
+
+        lea         rsi,                    [rsi + rcx]
+        lea         rdi,                    [rdi + rcx]
+
+        ; calculate breakout conditions and high edge variance
+        LFH_FILTER_AND_HEV_MASK 0
+        ; filter and write back the result
+        B_FILTER 0
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+%macro MB_FILTER_AND_WRITEBACK 1
+        movdqa      xmm3,                   [GLOBAL(t80)]
+%if %1 == 0
+        movdqa      xmm2,                   [rsp+_p1]              ; p1
+        movdqa      xmm7,                   [rsp+_q1]              ; q1
+%elif %1 == 1
+        movdqa      xmm2,                   [rsi+2*rax]     ; p1
+        movdqa      xmm7,                   [rdi]           ; q1
+
+        mov         rcx,                    rax
+        neg         rcx
+%elif %1 == 2
+        movdqa      xmm2,                   [rsp+_p1]       ; p1
+        movdqa      xmm6,                   [rsp+_p0]       ; p0
+        movdqa      xmm0,                   [rsp+_q0]       ; q0
+        movdqa      xmm7,                   [rsp+_q1]       ; q1
+%endif
+
+        pxor        xmm2,                   xmm3            ; p1 offset to convert to signed values
+        pxor        xmm7,                   xmm3            ; q1 offset to convert to signed values
+        pxor        xmm6,                   xmm3            ; offset to convert to signed values
+        pxor        xmm0,                   xmm3            ; offset to convert to signed values
+
+        psubsb      xmm2,                   xmm7            ; p1 - q1
+
+        movdqa      xmm3,                   xmm0            ; q0
+        psubsb      xmm0,                   xmm6            ; q0 - p0
+        paddsb      xmm2,                   xmm0            ; 1 * (q0 - p0) + (p1 - q1)
+        paddsb      xmm2,                   xmm0            ; 2 * (q0 - p0)
+        paddsb      xmm2,                   xmm0            ; 3 * (q0 - p0) + (p1 - q1)
+        pand        xmm1,                   xmm2            ; mask filter values we don't care about
+
+        movdqa      xmm2,                   xmm1            ; vp8_filter
+
+        pand        xmm2,                   xmm4            ; Filter2 = vp8_filter & hev
+        pxor        xmm0,                   xmm0
+
+        pandn       xmm4,                   xmm1            ; vp8_filter&=~hev
+        pxor        xmm1,                   xmm1
+
+        punpcklbw   xmm0,                   xmm4            ; Filter 2 (hi)
+        punpckhbw   xmm1,                   xmm4            ; Filter 2 (lo)
+
+        movdqa      xmm5,                   xmm2
+
+        movdqa      xmm4,                   [GLOBAL(s9)]
+        paddsb      xmm5,                   [GLOBAL(t3)]    ; vp8_signed_char_clamp(Filter2 + 3)
+        paddsb      xmm2,                   [GLOBAL(t4)]    ; vp8_signed_char_clamp(Filter2 + 4)
+
+        pmulhw      xmm1,                   xmm4            ; Filter 2 (lo) * 9
+        pmulhw      xmm0,                   xmm4            ; Filter 2 (hi) * 9
+
+        punpckhbw   xmm7,                   xmm5            ; axbxcxdx
+        punpcklbw   xmm5,                   xmm5            ; exfxgxhx
+
+        psraw       xmm7,                   11              ; sign extended shift right by 3
+
+        psraw       xmm5,                   11              ; sign extended shift right by 3
+        punpckhbw   xmm4,                   xmm2            ; axbxcxdx
+
+        punpcklbw   xmm2,                   xmm2            ; exfxgxhx
+        psraw       xmm4,                   11              ; sign extended shift right by 3
+
+        packsswb    xmm5,                   xmm7            ; Filter2 >>=3;
+        psraw       xmm2,                   11              ; sign extended shift right by 3
+
+        packsswb    xmm2,                   xmm4            ; Filter1 >>=3;
+
+        paddsb      xmm6,                   xmm5            ; ps0 =ps0 + Fitler2
+
+        psubsb      xmm3,                   xmm2            ; qs0 =qs0 - Filter1
+        movdqa      xmm7,                   xmm1
+
+        movdqa      xmm4,                   [GLOBAL(s63)]
+        movdqa      xmm5,                   xmm0
+        movdqa      xmm2,                   xmm5
+        paddw       xmm0,                   xmm4            ; Filter 2 (hi) * 9 + 63
+        paddw       xmm1,                   xmm4            ; Filter 2 (lo) * 9 + 63
+        movdqa      xmm4,                   xmm7
+
+        paddw       xmm5,                   xmm5            ; Filter 2 (hi) * 18
+
+        paddw       xmm7,                   xmm7            ; Filter 2 (lo) * 18
+        paddw       xmm5,                   xmm0            ; Filter 2 (hi) * 27 + 63
+
+        paddw       xmm7,                   xmm1            ; Filter 2 (lo) * 27 + 63
+        paddw       xmm2,                   xmm0            ; Filter 2 (hi) * 18 + 63
+        psraw       xmm0,                   7               ; (Filter 2 (hi) * 9 + 63) >> 7
+
+        paddw       xmm4,                   xmm1            ; Filter 2 (lo) * 18 + 63
+        psraw       xmm1,                   7               ; (Filter 2 (lo) * 9 + 63) >> 7
+        psraw       xmm2,                   7               ; (Filter 2 (hi) * 18 + 63) >> 7
+
+        packsswb    xmm0,                   xmm1            ; u1 = vp8_signed_char_clamp((63 + Filter2 * 9)>>7)
+
+        psraw       xmm4,                   7               ; (Filter 2 (lo) * 18 + 63) >> 7
+        psraw       xmm5,                   7               ; (Filter 2 (hi) * 27 + 63) >> 7
+        psraw       xmm7,                   7               ; (Filter 2 (lo) * 27 + 63) >> 7
+
+        packsswb    xmm5,                   xmm7            ; u3 = vp8_signed_char_clamp((63 + Filter2 * 27)>>7)
+        packsswb    xmm2,                   xmm4            ; u2 = vp8_signed_char_clamp((63 + Filter2 * 18)>>7)
+        movdqa      xmm7,                   [GLOBAL(t80)]
+
+%if %1 == 0
+        movdqa      xmm1,                   [rsp+_q1]       ; q1
+        movdqa      xmm4,                   [rsp+_p1]       ; p1
+        lea         rsi,                    [rsi+rcx*2]
+        lea         rdi,                    [rdi+rcx*2]
+
+%elif %1 == 1
+        movdqa      xmm1,                   [rdi]           ; q1
+        movdqa      xmm4,                   [rsi+rax*2]     ; p1
+%elif %1 == 2
+        movdqa      xmm4,                   [rsp+_p1]       ; p1
+        movdqa      xmm1,                   [rsp+_q1]       ; q1
+%endif
+
+        pxor        xmm1,                   xmm7
+        pxor        xmm4,                   xmm7
+
+        psubsb      xmm3,                   xmm5            ; sq = vp8_signed_char_clamp(qs0 - u3)
+        paddsb      xmm6,                   xmm5            ; sp = vp8_signed_char_clamp(ps0 - u3)
+        psubsb      xmm1,                   xmm2            ; sq = vp8_signed_char_clamp(qs1 - u2)
+        paddsb      xmm4,                   xmm2            ; sp = vp8_signed_char_clamp(ps1 - u2)
+
+%if %1 == 1
+        movdqa      xmm2,                   [rdi+rax*4]     ; p2
+        movdqa      xmm5,                   [rdi+rcx]       ; q2
+%else
+        movdqa      xmm2,                   [rsp+_p2]       ; p2
+        movdqa      xmm5,                   [rsp+_q2]       ; q2
+%endif
+
+        pxor        xmm1,                   xmm7            ; *oq1 = sq^0x80;
+        pxor        xmm4,                   xmm7            ; *op1 = sp^0x80;
+        pxor        xmm2,                   xmm7
+        pxor        xmm5,                   xmm7
+        paddsb      xmm2,                   xmm0            ; sp = vp8_signed_char_clamp(ps2 - u)
+        psubsb      xmm5,                   xmm0            ; sq = vp8_signed_char_clamp(qs2 - u)
+        pxor        xmm2,                   xmm7            ; *op2 = sp^0x80;
+        pxor        xmm5,                   xmm7            ; *oq2 = sq^0x80;
+        pxor        xmm3,                   xmm7            ; *oq0 = sq^0x80
+        pxor        xmm6,                   xmm7            ; *oq0 = sp^0x80
+%if %1 == 0
+        movq        [rsi],                  xmm6            ; p0
+        movhps      [rdi],                  xmm6
+        movq        [rsi + rcx],            xmm3            ; q0
+        movhps      [rdi + rcx],            xmm3
+        lea         rdx,                    [rcx + rcx*2]
+        movq        [rsi+rcx*2],            xmm1            ; q1
+        movhps      [rdi+rcx*2],            xmm1
+
+        movq        [rsi + rax],            xmm4            ; p1
+        movhps      [rdi + rax],            xmm4
+
+        movq        [rsi+rax*2],            xmm2            ; p2
+        movhps      [rdi+rax*2],            xmm2
+
+        movq        [rsi+rdx],              xmm5            ; q2
+        movhps      [rdi+rdx],              xmm5
+%elif %1 == 1
+        movdqa      [rdi+rcx],              xmm5            ; q2
+        movdqa      [rdi],                  xmm1            ; q1
+        movdqa      [rsi],                  xmm3            ; q0
+        movdqa      [rsi+rax  ],            xmm6            ; p0
+        movdqa      [rsi+rax*2],            xmm4            ; p1
+        movdqa      [rdi+rax*4],            xmm2            ; p2
+%elif %1 == 2
+        movdqa      [rsp+_p1],              xmm4            ; p1
+        movdqa      [rsp+_p0],              xmm6            ; p0
+        movdqa      [rsp+_q0],              xmm3            ; q0
+        movdqa      [rsp+_q1],              xmm1            ; q1
+%endif
+
+%endmacro
+
+
+;void vp8_mbloop_filter_horizontal_edge_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;)
+global sym(vp8_mbloop_filter_horizontal_edge_sse2) PRIVATE
+sym(vp8_mbloop_filter_horizontal_edge_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, lf_var_size
+
+        mov         rsi,                    arg(0)            ;src_ptr
+        movsxd      rax,                    dword ptr arg(1)  ;src_pixel_step
+        mov         rdx,                    arg(3)            ;limit
+
+        lea         rdi,                    [rsi+rax]         ; rdi points to row +1 for indirect addressing
+
+        ; calculate breakout conditions and high edge variance
+        LFH_FILTER_AND_HEV_MASK 1
+        ; filter and write back the results
+        MB_FILTER_AND_WRITEBACK 1
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_mbloop_filter_horizontal_edge_uv_sse2
+;(
+;    unsigned char *u,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;    unsigned char *v
+;)
+global sym(vp8_mbloop_filter_horizontal_edge_uv_sse2) PRIVATE
+sym(vp8_mbloop_filter_horizontal_edge_uv_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, lf_var_size
+
+        mov         rsi,                    arg(0)             ; u
+        mov         rdi,                    arg(5)             ; v
+        movsxd      rax,                    dword ptr arg(1)   ; src_pixel_step
+        mov         rcx,                    rax
+        neg         rax                     ; negate pitch to deal with above border
+        mov         rdx,                    arg(3)             ;limit
+
+        lea         rsi,                    [rsi + rcx]
+        lea         rdi,                    [rdi + rcx]
+
+        ; calculate breakout conditions and high edge variance
+        LFH_FILTER_AND_HEV_MASK 0
+        ; filter and write back the results
+        MB_FILTER_AND_WRITEBACK 0
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+%macro TRANSPOSE_16X8 2
+        movq        xmm4,               [rsi]           ; xx xx xx xx xx xx xx xx 07 06 05 04 03 02 01 00
+        movq        xmm1,               [rdi]           ; xx xx xx xx xx xx xx xx 17 16 15 14 13 12 11 10
+        movq        xmm0,               [rsi+2*rax]     ; xx xx xx xx xx xx xx xx 27 26 25 24 23 22 21 20
+        movq        xmm7,               [rdi+2*rax]     ; xx xx xx xx xx xx xx xx 37 36 35 34 33 32 31 30
+        movq        xmm5,               [rsi+4*rax]     ; xx xx xx xx xx xx xx xx 47 46 45 44 43 42 41 40
+        movq        xmm2,               [rdi+4*rax]     ; xx xx xx xx xx xx xx xx 57 56 55 54 53 52 51 50
+
+        punpcklbw   xmm4,               xmm1            ; 17 07 16 06 15 05 14 04 13 03 12 02 11 01 10 00
+
+        movq        xmm1,               [rdi+2*rcx]     ; xx xx xx xx xx xx xx xx 77 76 75 74 73 72 71 70
+
+        movdqa      xmm3,               xmm4            ; 17 07 16 06 15 05 14 04 13 03 12 02 11 01 10 00
+        punpcklbw   xmm0,               xmm7            ; 37 27 36 36 35 25 34 24 33 23 32 22 31 21 30 20
+
+        movq        xmm7,               [rsi+2*rcx]     ; xx xx xx xx xx xx xx xx 67 66 65 64 63 62 61 60
+
+        punpcklbw   xmm5,               xmm2            ; 57 47 56 46 55 45 54 44 53 43 52 42 51 41 50 40
+%if %1
+        lea         rsi,                [rsi+rax*8]
+        lea         rdi,                [rdi+rax*8]
+%else
+        mov         rsi,                arg(5)          ; v_ptr
+%endif
+
+        movdqa      xmm6,               xmm5            ; 57 47 56 46 55 45 54 44 53 43 52 42 51 41 50 40
+        punpcklbw   xmm7,               xmm1            ; 77 67 76 66 75 65 74 64 73 63 72 62 71 61 70 60
+        punpcklwd   xmm5,               xmm7            ; 73 63 53 43 72 62 52 42 71 61 51 41 70 60 50 40
+        punpckhwd   xmm6,               xmm7            ; 77 67 57 47 76 66 56 46 75 65 55 45 74 64 54 44
+        punpcklwd   xmm3,               xmm0            ; 33 23 13 03 32 22 12 02 31 21 11 01 30 20 10 00
+
+%if %1 == 0
+        lea         rdi,                [rsi + rax - 4] ; rdi points to row +1 for indirect addressing
+        lea         rsi,                [rsi - 4]
+%endif
+
+        movdqa      xmm2,               xmm3            ; 33 23 13 03 32 22 12 02 31 21 11 01 30 20 10 00
+        punpckhwd   xmm4,               xmm0            ; 37 27 17 07 36 26 16 06 35 25 15 05 34 24 14 04
+
+        movdqa      xmm7,               xmm4            ; 37 27 17 07 36 26 16 06 35 25 15 05 34 24 14 04
+        punpckhdq   xmm3,               xmm5            ; 73 63 53 43 33 23 13 03 72 62 52 42 32 22 12 02
+
+        punpckhdq   xmm7,               xmm6            ; 77 67 57 47 37 27 17 07 76 66 56 46 36 26 16 06
+
+        punpckldq   xmm4,               xmm6            ; 75 65 55 45 35 25 15 05 74 64 54 44 34 24 14 04
+
+        punpckldq   xmm2,               xmm5            ; 71 61 51 41 31 21 11 01 70 60 50 40 30 20 10 00
+
+        movdqa      [rsp+_t0],          xmm2            ; save to free XMM2
+
+        movq        xmm2,               [rsi]           ; xx xx xx xx xx xx xx xx 87 86 85 84 83 82 81 80
+        movq        xmm6,               [rdi]           ; xx xx xx xx xx xx xx xx 97 96 95 94 93 92 91 90
+        movq        xmm0,               [rsi+2*rax]     ; xx xx xx xx xx xx xx xx a7 a6 a5 a4 a3 a2 a1 a0
+        movq        xmm5,               [rdi+2*rax]     ; xx xx xx xx xx xx xx xx b7 b6 b5 b4 b3 b2 b1 b0
+        movq        xmm1,               [rsi+4*rax]     ; xx xx xx xx xx xx xx xx c7 c6 c5 c4 c3 c2 c1 c0
+
+        punpcklbw   xmm2,               xmm6            ; 97 87 96 86 95 85 94 84 93 83 92 82 91 81 90 80
+
+        movq        xmm6,               [rdi+4*rax]     ; xx xx xx xx xx xx xx xx d7 d6 d5 d4 d3 d2 d1 d0
+
+        punpcklbw   xmm0,               xmm5            ; b7 a7 b6 a6 b5 a5 b4 a4 b3 a3 b2 a2 b1 a1 b0 a0
+
+        movq        xmm5,               [rsi+2*rcx]     ; xx xx xx xx xx xx xx xx e7 e6 e5 e4 e3 e2 e1 e0
+
+        punpcklbw   xmm1,               xmm6            ; d7 c7 d6 c6 d5 c5 d4 c4 d3 c3 d2 c2 d1 e1 d0 c0
+
+        movq        xmm6,               [rdi+2*rcx]     ; xx xx xx xx xx xx xx xx f7 f6 f5 f4 f3 f2 f1 f0
+
+        punpcklbw   xmm5,               xmm6            ; f7 e7 f6 e6 f5 e5 f4 e4 f3 e3 f2 e2 f1 e1 f0 e0
+
+        movdqa      xmm6,               xmm1            ;
+        punpckhwd   xmm6,               xmm5            ; f7 e7 d7 c7 f6 e6 d6 c6 f5 e5 d5 c5 f4 e4 d4 c4
+
+        punpcklwd   xmm1,               xmm5            ; f3 e3 d3 c3 f2 e2 d2 c2 f1 e1 d1 c1 f0 e0 d0 c0
+        movdqa      xmm5,               xmm2            ; 97 87 96 86 95 85 94 84 93 83 92 82 91 81 90 80
+
+        punpcklwd   xmm5,               xmm0            ; b3 a3 93 83 b2 a2 92 82 b1 a1 91 81 b0 a0 90 80
+
+        punpckhwd   xmm2,               xmm0            ; b7 a7 97 87 b6 a6 96 86 b5 a5 95 85 b4 a4 94 84
+
+        movdqa      xmm0,               xmm5
+        punpckldq   xmm0,               xmm1            ; f1 e1 d1 c1 b1 a1 91 81 f0 e0 d0 c0 b0 a0 90 80
+
+        punpckhdq   xmm5,               xmm1            ; f3 e3 d3 c3 b3 a3 93 83 f2 e2 d2 c2 b2 a2 92 82
+        movdqa      xmm1,               xmm2            ; b7 a7 97 87 b6 a6 96 86 b5 a5 95 85 b4 a4 94 84
+
+        punpckldq   xmm1,               xmm6            ; f5 e5 d5 c5 b5 a5 95 85 f4 e4 d4 c4 b4 a4 94 84
+
+        punpckhdq   xmm2,               xmm6            ; f7 e7 d7 c7 b7 a7 97 87 f6 e6 d6 c6 b6 a6 96 86
+        movdqa      xmm6,               xmm7            ; 77 67 57 47 37 27 17 07 76 66 56 46 36 26 16 06
+
+        punpcklqdq  xmm6,               xmm2            ; f6 e6 d6 c6 b6 a6 96 86 76 66 56 46 36 26 16 06
+
+        punpckhqdq  xmm7,               xmm2            ; f7 e7 d7 c7 b7 a7 97 87 77 67 57 47 37 27 17 07
+
+%if %2 == 0
+        movdqa      [rsp+_q3],          xmm7            ; save 7
+        movdqa      [rsp+_q2],          xmm6            ; save 6
+%endif
+        movdqa      xmm2,               xmm3            ; 73 63 53 43 33 23 13 03 72 62 52 42 32 22 12 02
+        punpckhqdq  xmm3,               xmm5            ; f3 e3 d3 c3 b3 a3 93 83 73 63 53 43 33 23 13 03
+        punpcklqdq  xmm2,               xmm5            ; f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+        movdqa      [rsp+_p1],          xmm2            ; save 2
+
+        movdqa      xmm5,               xmm4            ; 75 65 55 45 35 25 15 05 74 64 54 44 34 24 14 04
+        punpcklqdq  xmm4,               xmm1            ; f4 e4 d4 c4 b4 a4 94 84 74 64 54 44 34 24 14 04
+        movdqa      [rsp+_p0],          xmm3            ; save 3
+
+        punpckhqdq  xmm5,               xmm1            ; f5 e5 d5 c5 b5 a5 95 85 75 65 55 45 35 25 15 05
+
+        movdqa      [rsp+_q0],          xmm4            ; save 4
+        movdqa      [rsp+_q1],          xmm5            ; save 5
+        movdqa      xmm1,               [rsp+_t0]
+
+        movdqa      xmm2,               xmm1            ;
+        punpckhqdq  xmm1,               xmm0            ; f1 e1 d1 c1 b1 a1 91 81 71 61 51 41 31 21 11 01
+        punpcklqdq  xmm2,               xmm0            ; f0 e0 d0 c0 b0 a0 90 80 70 60 50 40 30 20 10 00
+
+%if %2 == 0
+        movdqa      [rsp+_p2],          xmm1
+        movdqa      [rsp+_p3],          xmm2
+%endif
+
+%endmacro
+
+%macro LFV_FILTER_MASK_HEV_MASK 0
+        movdqa      xmm0,               xmm6            ; q2
+        psubusb     xmm0,               xmm7            ; q2-q3
+
+        psubusb     xmm7,               xmm6            ; q3-q2
+        movdqa      xmm4,               xmm5            ; q1
+
+        por         xmm7,               xmm0            ; abs (q3-q2)
+        psubusb     xmm4,               xmm6            ; q1-q2
+
+        movdqa      xmm0,               xmm1
+        psubusb     xmm6,               xmm5            ; q2-q1
+
+        por         xmm6,               xmm4            ; abs (q2-q1)
+        psubusb     xmm0,               xmm2            ; p2 - p3;
+
+        psubusb     xmm2,               xmm1            ; p3 - p2;
+        por         xmm0,               xmm2            ; abs(p2-p3)
+
+        movdqa      xmm5,               [rsp+_p1]       ; p1
+        pmaxub      xmm0,               xmm7
+
+        movdqa      xmm2,               xmm5            ; p1
+        psubusb     xmm5,               xmm1            ; p1-p2
+        psubusb     xmm1,               xmm2            ; p2-p1
+
+        movdqa      xmm7,               xmm3            ; p0
+        psubusb     xmm7,               xmm2            ; p0-p1
+
+        por         xmm1,               xmm5            ; abs(p2-p1)
+        pmaxub      xmm0,               xmm6
+
+        pmaxub      xmm0,               xmm1
+        movdqa      xmm1,               xmm2            ; p1
+
+        psubusb     xmm2,               xmm3            ; p1-p0
+
+        por         xmm2,               xmm7            ; abs(p1-p0)
+
+        pmaxub      xmm0,               xmm2
+
+        movdqa      xmm5,               [rsp+_q0]       ; q0
+        movdqa      xmm7,               [rsp+_q1]       ; q1
+
+        mov         rdx,                arg(3)          ; limit
+
+        movdqa      xmm6,               xmm5            ; q0
+        movdqa      xmm4,               xmm7            ; q1
+
+        psubusb     xmm5,               xmm7            ; q0-q1
+        psubusb     xmm7,               xmm6            ; q1-q0
+
+        por         xmm7,               xmm5            ; abs(q1-q0)
+
+        pmaxub      xmm0,               xmm7
+
+        psubusb     xmm0,               [rdx]           ; limit
+
+        mov         rdx,                arg(2)          ; blimit
+        movdqa      xmm5,               xmm4            ; q1
+
+        psubusb     xmm5,               xmm1            ; q1-=p1
+        psubusb     xmm1,               xmm4            ; p1-=q1
+
+        por         xmm5,               xmm1            ; abs(p1-q1)
+        movdqa      xmm1,               xmm3            ; p0
+
+        pand        xmm5,               [GLOBAL(tfe)]   ; set lsb of each byte to zero
+        psubusb     xmm1,               xmm6            ; p0-q0
+
+        movdqa      xmm4,               [rdx]           ; blimit
+        mov         rdx,                arg(4)          ; get thresh
+
+        psrlw       xmm5,               1               ; abs(p1-q1)/2
+        psubusb     xmm6,               xmm3            ; q0-p0
+
+        por         xmm1,               xmm6            ; abs(q0-p0)
+        paddusb     xmm1,               xmm1            ; abs(q0-p0)*2
+        movdqa      xmm3,               [rdx]
+
+        paddusb     xmm1,               xmm5            ; abs (p0 - q0) *2 + abs(p1-q1)/2
+        psubusb     xmm2,               xmm3            ; abs(q1 - q0) > thresh
+
+        psubusb     xmm7,               xmm3            ; abs(p1 - p0)> thresh
+
+        psubusb     xmm1,               xmm4            ; abs (p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        por         xmm2,               xmm7            ; abs(q1 - q0) > thresh || abs(p1 - p0) > thresh
+
+        por         xmm1,               xmm0            ; mask
+        pcmpeqb     xmm2,               xmm0
+
+        pxor        xmm0,               xmm0
+        pcmpeqb     xmm4,               xmm4
+
+        pcmpeqb     xmm1,               xmm0
+        pxor        xmm4,               xmm2
+%endmacro
+
+%macro BV_TRANSPOSE 0
+        ; xmm1 =    f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+        ; xmm6 =    f3 e3 d3 c3 b3 a3 93 83 73 63 53 43 33 23 13 03
+        ; xmm3 =    f4 e4 d4 c4 b4 a4 94 84 74 64 54 44 34 24 14 04
+        ; xmm7 =    f5 e5 d5 c5 b5 a5 95 85 75 65 55 45 35 25 15 05
+        movdqa      xmm2,               xmm1            ; f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+        punpcklbw   xmm2,               xmm6            ; 73 72 63 62 53 52 43 42 33 32 23 22 13 12 03 02
+
+        movdqa      xmm4,               xmm3            ; f4 e4 d4 c4 b4 a4 94 84 74 64 54 44 34 24 14 04
+        punpckhbw   xmm1,               xmm6            ; f3 f2 e3 e2 d3 d2 c3 c2 b3 b2 a3 a2 93 92 83 82
+
+        punpcklbw   xmm4,               xmm7            ; 75 74 65 64 55 54 45 44 35 34 25 24 15 14 05 04
+
+        punpckhbw   xmm3,               xmm7            ; f5 f4 e5 e4 d5 d4 c5 c4 b5 b4 a5 a4 95 94 85 84
+
+        movdqa      xmm6,               xmm2            ; 73 72 63 62 53 52 43 42 33 32 23 22 13 12 03 02
+        punpcklwd   xmm2,               xmm4            ; 35 34 33 32 25 24 23 22 15 14 13 12 05 04 03 02
+
+        punpckhwd   xmm6,               xmm4            ; 75 74 73 72 65 64 63 62 55 54 53 52 45 44 43 42
+        movdqa      xmm5,               xmm1            ; f3 f2 e3 e2 d3 d2 c3 c2 b3 b2 a3 a2 93 92 83 82
+
+        punpcklwd   xmm1,               xmm3            ; b5 b4 b3 b2 a5 a4 a3 a2 95 94 93 92 85 84 83 82
+
+        punpckhwd   xmm5,               xmm3            ; f5 f4 f3 f2 e5 e4 e3 e2 d5 d4 d3 d2 c5 c4 c3 c2
+        ; xmm2 = 35 34 33 32 25 24 23 22 15 14 13 12 05 04 03 02
+        ; xmm6 = 75 74 73 72 65 64 63 62 55 54 53 52 45 44 43 42
+        ; xmm1 = b5 b4 b3 b2 a5 a4 a3 a2 95 94 93 92 85 84 83 82
+        ; xmm5 = f5 f4 f3 f2 e5 e4 e3 e2 d5 d4 d3 d2 c5 c4 c3 c2
+%endmacro
+
+%macro BV_WRITEBACK 2
+        movd        [rsi+2],            %1
+        movd        [rsi+4*rax+2],      %2
+        psrldq      %1,                 4
+        psrldq      %2,                 4
+        movd        [rdi+2],            %1
+        movd        [rdi+4*rax+2],      %2
+        psrldq      %1,                 4
+        psrldq      %2,                 4
+        movd        [rsi+2*rax+2],      %1
+        movd        [rsi+2*rcx+2],      %2
+        psrldq      %1,                 4
+        psrldq      %2,                 4
+        movd        [rdi+2*rax+2],      %1
+        movd        [rdi+2*rcx+2],      %2
+%endmacro
+
+%if ABI_IS_32BIT
+
+;void vp8_loop_filter_vertical_edge_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;)
+global sym(vp8_loop_filter_vertical_edge_sse2) PRIVATE
+sym(vp8_loop_filter_vertical_edge_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub             rsp, lf_var_size
+
+        mov         rsi,        arg(0)                  ; src_ptr
+        movsxd      rax,        dword ptr arg(1)        ; src_pixel_step
+
+        lea         rsi,        [rsi - 4]
+        lea         rdi,        [rsi + rax]             ; rdi points to row +1 for indirect addressing
+        lea         rcx,        [rax*2+rax]
+
+        ;transpose 16x8 to 8x16, and store the 8-line result on stack.
+        TRANSPOSE_16X8 1, 1
+
+        ; calculate filter mask and high edge variance
+        LFV_FILTER_MASK_HEV_MASK
+
+        ; start work on filters
+        B_FILTER 2
+
+        ; transpose and write back - only work on q1, q0, p0, p1
+        BV_TRANSPOSE
+        ; store 16-line result
+
+        lea         rdx,        [rax]
+        neg         rdx
+
+        BV_WRITEBACK xmm1, xmm5
+
+        lea         rsi,        [rsi+rdx*8]
+        lea         rdi,        [rdi+rdx*8]
+        BV_WRITEBACK xmm2, xmm6
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+%endif
+
+;void vp8_loop_filter_vertical_edge_uv_sse2
+;(
+;    unsigned char *u,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;    unsigned char *v
+;)
+global sym(vp8_loop_filter_vertical_edge_uv_sse2) PRIVATE
+sym(vp8_loop_filter_vertical_edge_uv_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub             rsp, lf_var_size
+
+        mov         rsi,        arg(0)                  ; u_ptr
+        movsxd      rax,        dword ptr arg(1)        ; src_pixel_step
+
+        lea         rsi,        [rsi - 4]
+        lea         rdi,        [rsi + rax]             ; rdi points to row +1 for indirect addressing
+        lea         rcx,        [rax+2*rax]
+
+        ;transpose 16x8 to 8x16, and store the 8-line result on stack.
+        TRANSPOSE_16X8 0, 1
+
+        ; calculate filter mask and high edge variance
+        LFV_FILTER_MASK_HEV_MASK
+
+        ; start work on filters
+        B_FILTER 2
+
+        ; transpose and write back - only work on q1, q0, p0, p1
+        BV_TRANSPOSE
+
+        lea         rdi,        [rsi + rax]             ; rdi points to row +1 for indirect addressing
+
+        ; store 16-line result
+        BV_WRITEBACK xmm1, xmm5
+
+        mov         rsi,        arg(0)                  ; u_ptr
+        lea         rsi,        [rsi - 4]
+        lea         rdi,        [rsi + rax]             ; rdi points to row +1 for indirect addressing
+        BV_WRITEBACK xmm2, xmm6
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+%macro MBV_TRANSPOSE 0
+        movdqa      xmm0,               [rsp+_p3]           ; f0 e0 d0 c0 b0 a0 90 80 70 60 50 40 30 20 10 00
+        movdqa      xmm1,               xmm0                ; f0 e0 d0 c0 b0 a0 90 80 70 60 50 40 30 20 10 00
+
+        punpcklbw   xmm0,               xmm2                ; 71 70 61 60 51 50 41 40 31 30 21 20 11 10 01 00
+        punpckhbw   xmm1,               xmm2                ; f1 f0 e1 e0 d1 d0 c1 c0 b1 b0 a1 a0 91 90 81 80
+
+        movdqa      xmm7,               [rsp+_p1]           ; f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+        movdqa      xmm6,               xmm7                ; f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+
+        punpcklbw   xmm7,               [rsp+_p0]           ; 73 72 63 62 53 52 43 42 33 32 23 22 13 12 03 02
+        punpckhbw   xmm6,               [rsp+_p0]           ; f3 f2 e3 e2 d3 d2 c3 c2 b3 b2 a3 a2 93 92 83 82
+
+        movdqa      xmm3,               xmm0                ; 71 70 61 60 51 50 41 40 31 30 21 20 11 10 01 00
+        punpcklwd   xmm0,               xmm7                ; 33 32 31 30 23 22 21 20 13 12 11 10 03 02 01 00
+
+        punpckhwd   xmm3,               xmm7                ; 73 72 71 70 63 62 61 60 53 52 51 50 43 42 41 40
+        movdqa      xmm4,               xmm1                ; f1 f0 e1 e0 d1 d0 c1 c0 b1 b0 a1 a0 91 90 81 80
+
+        punpcklwd   xmm1,               xmm6                ; b3 b2 b1 b0 a3 a2 a1 a0 93 92 91 90 83 82 81 80
+        punpckhwd   xmm4,               xmm6                ; f3 f2 f1 f0 e3 e2 e1 e0 d3 d2 d1 d0 c3 c2 c1 c0
+
+        movdqa      xmm7,               [rsp+_q0]           ; f4 e4 d4 c4 b4 a4 94 84 74 64 54 44 34 24 14 04
+        punpcklbw   xmm7,               [rsp+_q1]           ; 75 74 65 64 55 54 45 44 35 34 25 24 15 14 05 04
+
+        movdqa      xmm6,               xmm5                ; f6 e6 d6 c6 b6 a6 96 86 76 66 56 46 36 26 16 06
+        punpcklbw   xmm6,               [rsp+_q3]           ; 77 76 67 66 57 56 47 46 37 36 27 26 17 16 07 06
+
+        movdqa      xmm2,               xmm7                ; 75 74 65 64 55 54 45 44 35 34 25 24 15 14 05 04
+        punpcklwd   xmm7,               xmm6                ; 37 36 35 34 27 26 25 24 17 16 15 14 07 06 05 04
+
+        punpckhwd   xmm2,               xmm6                ; 77 76 75 74 67 66 65 64 57 56 55 54 47 46 45 44
+        movdqa      xmm6,               xmm0                ; 33 32 31 30 23 22 21 20 13 12 11 10 03 02 01 00
+
+        punpckldq   xmm0,               xmm7                ; 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
+        punpckhdq   xmm6,               xmm7                ; 37 36 35 34 33 32 31 30 27 26 25 24 23 22 21 20
+%endmacro
+
+%macro MBV_WRITEBACK_1 0
+        movq        [rsi],              xmm0
+        movhps      [rdi],              xmm0
+
+        movq        [rsi+2*rax],        xmm6
+        movhps      [rdi+2*rax],        xmm6
+
+        movdqa      xmm0,               xmm3                ; 73 72 71 70 63 62 61 60 53 52 51 50 43 42 41 40
+        punpckldq   xmm0,               xmm2                ; 57 56 55 54 53 52 51 50 47 46 45 44 43 42 41 40
+        punpckhdq   xmm3,               xmm2                ; 77 76 75 74 73 72 71 70 67 66 65 64 63 62 61 60
+
+        movq        [rsi+4*rax],        xmm0
+        movhps      [rdi+4*rax],        xmm0
+
+        movq        [rsi+2*rcx],        xmm3
+        movhps      [rdi+2*rcx],        xmm3
+
+        movdqa      xmm7,               [rsp+_q0]           ; f4 e4 d4 c4 b4 a4 94 84 74 64 54 44 34 24 14 04
+        punpckhbw   xmm7,               [rsp+_q1]           ; f5 f4 e5 e4 d5 d4 c5 c4 b5 b4 a5 a4 95 94 85 84
+        punpckhbw   xmm5,               [rsp+_q3]           ; f7 f6 e7 e6 d7 d6 c7 c6 b7 b6 a7 a6 97 96 87 86
+
+        movdqa      xmm0,               xmm7
+        punpcklwd   xmm0,               xmm5                ; b7 b6 b4 b4 a7 a6 a5 a4 97 96 95 94 87 86 85 84
+        punpckhwd   xmm7,               xmm5                ; f7 f6 f5 f4 e7 e6 e5 e4 d7 d6 d5 d4 c7 c6 c5 c4
+
+        movdqa      xmm5,               xmm1                ; b3 b2 b1 b0 a3 a2 a1 a0 93 92 91 90 83 82 81 80
+        punpckldq   xmm1,               xmm0                ; 97 96 95 94 93 92 91 90 87 86 85 83 84 82 81 80
+        punpckhdq   xmm5,               xmm0                ; b7 b6 b5 b4 b3 b2 b1 b0 a7 a6 a5 a4 a3 a2 a1 a0
+%endmacro
+
+%macro MBV_WRITEBACK_2 0
+        movq        [rsi],              xmm1
+        movhps      [rdi],              xmm1
+
+        movq        [rsi+2*rax],        xmm5
+        movhps      [rdi+2*rax],        xmm5
+
+        movdqa      xmm1,               xmm4                ; f3 f2 f1 f0 e3 e2 e1 e0 d3 d2 d1 d0 c3 c2 c1 c0
+        punpckldq   xmm1,               xmm7                ; d7 d6 d5 d4 d3 d2 d1 d0 c7 c6 c5 c4 c3 c2 c1 c0
+        punpckhdq   xmm4,               xmm7                ; f7 f6 f4 f4 f3 f2 f1 f0 e7 e6 e5 e4 e3 e2 e1 e0
+
+        movq        [rsi+4*rax],        xmm1
+        movhps      [rdi+4*rax],        xmm1
+
+        movq        [rsi+2*rcx],        xmm4
+        movhps      [rdi+2*rcx],        xmm4
+%endmacro
+
+
+;void vp8_mbloop_filter_vertical_edge_sse2
+;(
+;    unsigned char *src_ptr,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;)
+global sym(vp8_mbloop_filter_vertical_edge_sse2) PRIVATE
+sym(vp8_mbloop_filter_vertical_edge_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub          rsp, lf_var_size
+
+        mov         rsi,                arg(0)              ; src_ptr
+        movsxd      rax,                dword ptr arg(1)    ; src_pixel_step
+
+        lea         rsi,                [rsi - 4]
+        lea         rdi,                [rsi + rax]         ; rdi points to row +1 for indirect addressing
+        lea         rcx,                [rax*2+rax]
+
+        ; Transpose
+        TRANSPOSE_16X8 1, 0
+
+        ; calculate filter mask and high edge variance
+        LFV_FILTER_MASK_HEV_MASK
+
+        neg         rax
+        ; start work on filters
+        MB_FILTER_AND_WRITEBACK 2
+
+        lea         rsi,                [rsi+rax*8]
+        lea         rdi,                [rdi+rax*8]
+
+        ; transpose and write back
+        MBV_TRANSPOSE
+
+        neg         rax
+
+        MBV_WRITEBACK_1
+
+
+        lea         rsi,                [rsi+rax*8]
+        lea         rdi,                [rdi+rax*8]
+        MBV_WRITEBACK_2
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_mbloop_filter_vertical_edge_uv_sse2
+;(
+;    unsigned char *u,
+;    int            src_pixel_step,
+;    const char    *blimit,
+;    const char    *limit,
+;    const char    *thresh,
+;    unsigned char *v
+;)
+global sym(vp8_mbloop_filter_vertical_edge_uv_sse2) PRIVATE
+sym(vp8_mbloop_filter_vertical_edge_uv_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub          rsp, lf_var_size
+
+        mov         rsi,                arg(0)              ; u_ptr
+        movsxd      rax,                dword ptr arg(1)    ; src_pixel_step
+
+        lea         rsi,                [rsi - 4]
+        lea         rdi,                [rsi + rax]         ; rdi points to row +1 for indirect addressing
+        lea         rcx,                [rax+2*rax]
+
+        ; Transpose
+        TRANSPOSE_16X8 0, 0
+
+        ; calculate filter mask and high edge variance
+        LFV_FILTER_MASK_HEV_MASK
+
+        ; start work on filters
+        MB_FILTER_AND_WRITEBACK 2
+
+        ; transpose and write back
+        MBV_TRANSPOSE
+
+        mov         rsi,                arg(0)             ;u_ptr
+        lea         rsi,                [rsi - 4]
+        lea         rdi,                [rsi + rax]
+        MBV_WRITEBACK_1
+        mov         rsi,                arg(5)             ;v_ptr
+        lea         rsi,                [rsi - 4]
+        lea         rdi,                [rsi + rax]
+        MBV_WRITEBACK_2
+
+    add rsp, lf_var_size
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_loop_filter_simple_horizontal_edge_sse2
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit,
+;)
+global sym(vp8_loop_filter_simple_horizontal_edge_sse2) PRIVATE
+sym(vp8_loop_filter_simple_horizontal_edge_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    SAVE_XMM 7
+    GET_GOT     rbx
+    ; end prolog
+
+        mov         rcx, arg(0)             ;src_ptr
+        movsxd      rax, dword ptr arg(1)   ;src_pixel_step     ; destination pitch?
+        movdqa      xmm6, [GLOBAL(tfe)]
+        lea         rdx, [rcx + rax]
+        neg         rax
+
+        ; calculate mask
+        movdqa      xmm0, [rdx]             ; q1
+        mov         rdx, arg(2)             ;blimit
+        movdqa      xmm1, [rcx+2*rax]       ; p1
+
+        movdqa      xmm2, xmm1
+        movdqa      xmm3, xmm0
+
+        psubusb     xmm0, xmm1              ; q1-=p1
+        psubusb     xmm1, xmm3              ; p1-=q1
+        por         xmm1, xmm0              ; abs(p1-q1)
+        pand        xmm1, xmm6              ; set lsb of each byte to zero
+        psrlw       xmm1, 1                 ; abs(p1-q1)/2
+
+        movdqa      xmm7, XMMWORD PTR [rdx]
+
+        movdqa      xmm5, [rcx+rax]         ; p0
+        movdqa      xmm4, [rcx]             ; q0
+        movdqa      xmm0, xmm4              ; q0
+        movdqa      xmm6, xmm5              ; p0
+        psubusb     xmm5, xmm4              ; p0-=q0
+        psubusb     xmm4, xmm6              ; q0-=p0
+        por         xmm5, xmm4              ; abs(p0 - q0)
+
+        movdqa      xmm4, [GLOBAL(t80)]
+
+        paddusb     xmm5, xmm5              ; abs(p0-q0)*2
+        paddusb     xmm5, xmm1              ; abs (p0 - q0) *2 + abs(p1-q1)/2
+        psubusb     xmm5, xmm7              ; abs(p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        pxor        xmm7, xmm7
+        pcmpeqb     xmm5, xmm7
+
+
+        ; start work on filters
+        pxor        xmm2, xmm4     ; p1 offset to convert to signed values
+        pxor        xmm3, xmm4     ; q1 offset to convert to signed values
+        psubsb      xmm2, xmm3              ; p1 - q1
+
+        pxor        xmm6, xmm4     ; offset to convert to signed values
+        pxor        xmm0, xmm4     ; offset to convert to signed values
+        movdqa      xmm3, xmm0              ; q0
+        psubsb      xmm0, xmm6              ; q0 - p0
+        paddsb      xmm2, xmm0              ; p1 - q1 + 1 * (q0 - p0)
+        paddsb      xmm2, xmm0              ; p1 - q1 + 2 * (q0 - p0)
+        paddsb      xmm2, xmm0              ; p1 - q1 + 3 * (q0 - p0)
+        pand        xmm5, xmm2              ; mask filter values we don't care about
+
+        movdqa      xmm0, xmm5
+        paddsb      xmm5,        [GLOBAL(t3)]                  ;  3* (q0 - p0) + (p1 - q1) + 4
+        paddsb      xmm0,        [GLOBAL(t4)]                  ; +3 instead of +4
+
+        movdqa      xmm1, [GLOBAL(te0)]
+        movdqa      xmm2, [GLOBAL(t1f)]
+
+;        pxor        xmm7, xmm7
+        pcmpgtb     xmm7, xmm0              ;save sign
+        pand        xmm7, xmm1              ;preserve the upper 3 bits
+        psrlw       xmm0, 3
+        pand        xmm0, xmm2              ;clear out upper 3 bits
+        por         xmm0, xmm7              ;add sign
+        psubsb      xmm3, xmm0              ; q0-= q0sz add
+
+        pxor        xmm7, xmm7
+        pcmpgtb     xmm7, xmm5              ;save sign
+        pand        xmm7, xmm1              ;preserve the upper 3 bits
+        psrlw       xmm5, 3
+        pand        xmm5, xmm2              ;clear out upper 3 bits
+        por         xmm5, xmm7              ;add sign
+        paddsb      xmm6, xmm5              ; p0+= p0 add
+
+        pxor        xmm3, xmm4     ; unoffset
+        movdqa      [rcx], xmm3             ; write back
+
+        pxor        xmm6, xmm4     ; unoffset
+        movdqa      [rcx+rax], xmm6         ; write back
+
+    ; begin epilog
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_loop_filter_simple_vertical_edge_sse2
+;(
+;    unsigned char *src_ptr,
+;    int  src_pixel_step,
+;    const char *blimit,
+;)
+global sym(vp8_loop_filter_simple_vertical_edge_sse2) PRIVATE
+sym(vp8_loop_filter_simple_vertical_edge_sse2):
+    push        rbp         ; save old base pointer value.
+    mov         rbp, rsp    ; set new base pointer value.
+    SHADOW_ARGS_TO_STACK 3
+    SAVE_XMM 7
+    GET_GOT     rbx         ; save callee-saved reg
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 32                         ; reserve 32 bytes
+    %define t0  [rsp + 0]    ;__declspec(align(16)) char t0[16];
+    %define t1  [rsp + 16]   ;__declspec(align(16)) char t1[16];
+
+        mov         rsi, arg(0) ;src_ptr
+        movsxd      rax, dword ptr arg(1) ;src_pixel_step     ; destination pitch?
+
+        lea         rsi,        [rsi - 2 ]
+        lea         rdi,        [rsi + rax]
+        lea         rdx,        [rsi + rax*4]
+        lea         rcx,        [rdx + rax]
+
+        movd        xmm0,       [rsi]                   ; (high 96 bits unused) 03 02 01 00
+        movd        xmm1,       [rdx]                   ; (high 96 bits unused) 43 42 41 40
+        movd        xmm2,       [rdi]                   ; 13 12 11 10
+        movd        xmm3,       [rcx]                   ; 53 52 51 50
+        punpckldq   xmm0,       xmm1                    ; (high 64 bits unused) 43 42 41 40 03 02 01 00
+        punpckldq   xmm2,       xmm3                    ; 53 52 51 50 13 12 11 10
+
+        movd        xmm4,       [rsi + rax*2]           ; 23 22 21 20
+        movd        xmm5,       [rdx + rax*2]           ; 63 62 61 60
+        movd        xmm6,       [rdi + rax*2]           ; 33 32 31 30
+        movd        xmm7,       [rcx + rax*2]           ; 73 72 71 70
+        punpckldq   xmm4,       xmm5                    ; 63 62 61 60 23 22 21 20
+        punpckldq   xmm6,       xmm7                    ; 73 72 71 70 33 32 31 30
+
+        punpcklbw   xmm0,       xmm2                    ; 53 43 52 42 51 41 50 40 13 03 12 02 11 01 10 00
+        punpcklbw   xmm4,       xmm6                    ; 73 63 72 62 71 61 70 60 33 23 32 22 31 21 30 20
+
+        movdqa      xmm1,       xmm0
+        punpcklwd   xmm0,       xmm4                    ; 33 23 13 03 32 22 12 02 31 21 11 01 30 20 10 00
+        punpckhwd   xmm1,       xmm4                    ; 73 63 53 43 72 62 52 42 71 61 51 41 70 60 50 40
+
+        movdqa      xmm2,       xmm0
+        punpckldq   xmm0,       xmm1                    ; 71 61 51 41 31 21 11 01 70 60 50 40 30 20 10 00
+        punpckhdq   xmm2,       xmm1                    ; 73 63 53 43 33 23 13 03 72 62 52 42 32 22 12 02
+
+        lea         rsi,        [rsi + rax*8]
+        lea         rdi,        [rsi + rax]
+        lea         rdx,        [rsi + rax*4]
+        lea         rcx,        [rdx + rax]
+
+        movd        xmm4,       [rsi]                   ; 83 82 81 80
+        movd        xmm1,       [rdx]                   ; c3 c2 c1 c0
+        movd        xmm6,       [rdi]                   ; 93 92 91 90
+        movd        xmm3,       [rcx]                   ; d3 d2 d1 d0
+        punpckldq   xmm4,       xmm1                    ; c3 c2 c1 c0 83 82 81 80
+        punpckldq   xmm6,       xmm3                    ; d3 d2 d1 d0 93 92 91 90
+
+        movd        xmm1,       [rsi + rax*2]           ; a3 a2 a1 a0
+        movd        xmm5,       [rdx + rax*2]           ; e3 e2 e1 e0
+        movd        xmm3,       [rdi + rax*2]           ; b3 b2 b1 b0
+        movd        xmm7,       [rcx + rax*2]           ; f3 f2 f1 f0
+        punpckldq   xmm1,       xmm5                    ; e3 e2 e1 e0 a3 a2 a1 a0
+        punpckldq   xmm3,       xmm7                    ; f3 f2 f1 f0 b3 b2 b1 b0
+
+        punpcklbw   xmm4,       xmm6                    ; d3 c3 d2 c2 d1 c1 d0 c0 93 83 92 82 91 81 90 80
+        punpcklbw   xmm1,       xmm3                    ; f3 e3 f2 e2 f1 e1 f0 e0 b3 a3 b2 a2 b1 a1 b0 a0
+
+        movdqa      xmm7,       xmm4
+        punpcklwd   xmm4,       xmm1                    ; b3 a3 93 83 b2 a2 92 82 b1 a1 91 81 b0 a0 90 80
+        punpckhwd   xmm7,       xmm1                    ; f3 e3 d3 c3 f2 e2 d2 c2 f1 e1 d1 c1 f0 e0 d0 c0
+
+        movdqa      xmm6,       xmm4
+        punpckldq   xmm4,       xmm7                    ; f1 e1 d1 c1 b1 a1 91 81 f0 e0 d0 c0 b0 a0 90 80
+        punpckhdq   xmm6,       xmm7                    ; f3 e3 d3 c3 b3 a3 93 83 f2 e2 d2 c2 b2 a2 92 82
+
+        movdqa      xmm1,       xmm0
+        movdqa      xmm3,       xmm2
+
+        punpcklqdq  xmm0,       xmm4                    ; p1  f0 e0 d0 c0 b0 a0 90 80 70 60 50 40 30 20 10 00
+        punpckhqdq  xmm1,       xmm4                    ; p0  f1 e1 d1 c1 b1 a1 91 81 71 61 51 41 31 21 11 01
+        punpcklqdq  xmm2,       xmm6                    ; q0  f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+        punpckhqdq  xmm3,       xmm6                    ; q1  f3 e3 d3 c3 b3 a3 93 83 73 63 53 43 33 23 13 03
+
+        mov         rdx,        arg(2)                          ;blimit
+
+        ; calculate mask
+        movdqa      xmm6,       xmm0                            ; p1
+        movdqa      xmm7,       xmm3                            ; q1
+        psubusb     xmm7,       xmm0                            ; q1-=p1
+        psubusb     xmm6,       xmm3                            ; p1-=q1
+        por         xmm6,       xmm7                            ; abs(p1-q1)
+        pand        xmm6,       [GLOBAL(tfe)]                   ; set lsb of each byte to zero
+        psrlw       xmm6,       1                               ; abs(p1-q1)/2
+
+        movdqa      xmm7, [rdx]
+
+        movdqa      xmm5,       xmm1                            ; p0
+        movdqa      xmm4,       xmm2                            ; q0
+        psubusb     xmm5,       xmm2                            ; p0-=q0
+        psubusb     xmm4,       xmm1                            ; q0-=p0
+        por         xmm5,       xmm4                            ; abs(p0 - q0)
+        paddusb     xmm5,       xmm5                            ; abs(p0-q0)*2
+        paddusb     xmm5,       xmm6                            ; abs (p0 - q0) *2 + abs(p1-q1)/2
+
+        movdqa      xmm4, [GLOBAL(t80)]
+
+        psubusb     xmm5,        xmm7                           ; abs(p0 - q0) *2 + abs(p1-q1)/2  > blimit
+        pxor        xmm7,        xmm7
+        pcmpeqb     xmm5,        xmm7                           ; mm5 = mask
+
+        ; start work on filters
+        movdqa        t0,        xmm0
+        movdqa        t1,        xmm3
+
+        pxor        xmm0,        xmm4                  ; p1 offset to convert to signed values
+        pxor        xmm3,        xmm4                  ; q1 offset to convert to signed values
+        psubsb      xmm0,        xmm3                           ; p1 - q1
+
+        pxor        xmm1,        xmm4                  ; offset to convert to signed values
+        pxor        xmm2,        xmm4                  ; offset to convert to signed values
+
+        movdqa      xmm3,        xmm2                           ; offseted ; q0
+        psubsb      xmm2,        xmm1                           ; q0 - p0
+        paddsb      xmm0,        xmm2                           ; p1 - q1 + 1 * (q0 - p0)
+        paddsb      xmm0,        xmm2                           ; p1 - q1 + 2 * (q0 - p0)
+        paddsb      xmm0,        xmm2                           ; p1 - q1 + 3 * (q0 - p0)
+        pand        xmm5,        xmm0                           ; mask filter values we don't care about
+
+        movdqa      xmm0, xmm5
+        paddsb      xmm5,        [GLOBAL(t3)]                  ;  3* (q0 - p0) + (p1 - q1) + 4
+        paddsb      xmm0,        [GLOBAL(t4)]                  ; +3 instead of +4
+
+        movdqa  xmm6, [GLOBAL(te0)]
+        movdqa  xmm2, [GLOBAL(t1f)]
+
+;        pxor        xmm7, xmm7
+        pcmpgtb     xmm7, xmm0              ;save sign
+        pand        xmm7, xmm6              ;preserve the upper 3 bits
+        psrlw       xmm0, 3
+        pand        xmm0, xmm2              ;clear out upper 3 bits
+        por         xmm0, xmm7              ;add sign
+        psubsb      xmm3, xmm0              ; q0-= q0sz add
+
+        pxor        xmm7, xmm7
+        pcmpgtb     xmm7, xmm5              ;save sign
+        pand        xmm7, xmm6              ;preserve the upper 3 bits
+        psrlw       xmm5, 3
+        pand        xmm5, xmm2              ;clear out upper 3 bits
+        por         xmm5, xmm7              ;add sign
+        paddsb      xmm1, xmm5              ; p0+= p0 add
+
+        pxor        xmm3,        xmm4                  ; unoffset   q0
+        pxor        xmm1,        xmm4                  ; unoffset   p0
+
+        movdqa      xmm0,        t0                             ; p1
+        movdqa      xmm4,        t1                             ; q1
+
+        ; write out order: xmm0 xmm2 xmm1 xmm3
+        lea         rdx,        [rsi + rax*4]
+
+        ; transpose back to write out
+        ; p1  f0 e0 d0 c0 b0 a0 90 80 70 60 50 40 30 20 10 00
+        ; p0  f1 e1 d1 c1 b1 a1 91 81 71 61 51 41 31 21 11 01
+        ; q0  f2 e2 d2 c2 b2 a2 92 82 72 62 52 42 32 22 12 02
+        ; q1  f3 e3 d3 c3 b3 a3 93 83 73 63 53 43 33 23 13 03
+        movdqa      xmm6,       xmm0
+        punpcklbw   xmm0,       xmm1                               ; 71 70 61 60 51 50 41 40 31 30 21 20 11 10 01 00
+        punpckhbw   xmm6,       xmm1                               ; f1 f0 e1 e0 d1 d0 c1 c0 b1 b0 a1 a0 91 90 81 80
+
+        movdqa      xmm5,       xmm3
+        punpcklbw   xmm3,       xmm4                               ; 73 72 63 62 53 52 43 42 33 32 23 22 13 12 03 02
+        punpckhbw   xmm5,       xmm4                               ; f3 f2 e3 e2 d3 d2 c3 c2 b3 b2 a3 a2 93 92 83 82
+
+        movdqa      xmm2,       xmm0
+        punpcklwd   xmm0,       xmm3                               ; 33 32 31 30 23 22 21 20 13 12 11 10 03 02 01 00
+        punpckhwd   xmm2,       xmm3                               ; 73 72 71 70 63 62 61 60 53 52 51 50 43 42 41 40
+
+        movdqa      xmm3,       xmm6
+        punpcklwd   xmm6,       xmm5                               ; b3 b2 b1 b0 a3 a2 a1 a0 93 92 91 90 83 82 81 80
+        punpckhwd   xmm3,       xmm5                               ; f3 f2 f1 f0 e3 e2 e1 e0 d3 d2 d1 d0 c3 c2 c1 c0
+
+        movd        [rsi],      xmm6                               ; write the second 8-line result
+        movd        [rdx],      xmm3
+        psrldq      xmm6,       4
+        psrldq      xmm3,       4
+        movd        [rdi],      xmm6
+        movd        [rcx],      xmm3
+        psrldq      xmm6,       4
+        psrldq      xmm3,       4
+        movd        [rsi + rax*2], xmm6
+        movd        [rdx + rax*2], xmm3
+        psrldq      xmm6,       4
+        psrldq      xmm3,       4
+        movd        [rdi + rax*2], xmm6
+        movd        [rcx + rax*2], xmm3
+
+        neg         rax
+        lea         rsi,        [rsi + rax*8]
+        neg         rax
+        lea         rdi,        [rsi + rax]
+        lea         rdx,        [rsi + rax*4]
+        lea         rcx,        [rdx + rax]
+
+        movd        [rsi],      xmm0                                ; write the first 8-line result
+        movd        [rdx],      xmm2
+        psrldq      xmm0,       4
+        psrldq      xmm2,       4
+        movd        [rdi],      xmm0
+        movd        [rcx],      xmm2
+        psrldq      xmm0,       4
+        psrldq      xmm2,       4
+        movd        [rsi + rax*2], xmm0
+        movd        [rdx + rax*2], xmm2
+        psrldq      xmm0,       4
+        psrldq      xmm2,       4
+        movd        [rdi + rax*2], xmm0
+        movd        [rcx + rax*2], xmm2
+
+    add rsp, 32
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+tfe:
+    times 16 db 0xfe
+align 16
+t80:
+    times 16 db 0x80
+align 16
+t1s:
+    times 16 db 0x01
+align 16
+t3:
+    times 16 db 0x03
+align 16
+t4:
+    times 16 db 0x04
+align 16
+ones:
+    times 8 dw 0x0001
+align 16
+s9:
+    times 8 dw 0x0900
+align 16
+s63:
+    times 8 dw 0x003f
+align 16
+te0:
+    times 16 db 0xe0
+align 16
+t1f:
+    times 16 db 0x1f
diff --git a/media/libvpx/vp8/common/x86/loopfilter_x86.c b/media/libvpx/vp8/common/x86/loopfilter_x86.c
new file mode 100644
index 000000000..658600460
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/loopfilter_x86.c
@@ -0,0 +1,198 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8/common/loopfilter.h"
+
+#define prototype_loopfilter(sym) \
+    void sym(unsigned char *src, int pitch, const unsigned char *blimit,\
+             const unsigned char *limit, const unsigned char *thresh, int count)
+
+#define prototype_loopfilter_nc(sym) \
+    void sym(unsigned char *src, int pitch, const unsigned char *blimit,\
+             const unsigned char *limit, const unsigned char *thresh)
+
+#define prototype_simple_loopfilter(sym) \
+    void sym(unsigned char *y, int ystride, const unsigned char *blimit)
+
+prototype_loopfilter(vp8_mbloop_filter_vertical_edge_mmx);
+prototype_loopfilter(vp8_mbloop_filter_horizontal_edge_mmx);
+prototype_loopfilter(vp8_loop_filter_vertical_edge_mmx);
+prototype_loopfilter(vp8_loop_filter_horizontal_edge_mmx);
+prototype_simple_loopfilter(vp8_loop_filter_simple_horizontal_edge_mmx);
+prototype_simple_loopfilter(vp8_loop_filter_simple_vertical_edge_mmx);
+
+#if HAVE_SSE2 && ARCH_X86_64
+prototype_loopfilter(vp8_loop_filter_bv_y_sse2);
+prototype_loopfilter(vp8_loop_filter_bh_y_sse2);
+#else
+prototype_loopfilter_nc(vp8_loop_filter_vertical_edge_sse2);
+prototype_loopfilter_nc(vp8_loop_filter_horizontal_edge_sse2);
+#endif
+prototype_loopfilter_nc(vp8_mbloop_filter_vertical_edge_sse2);
+prototype_loopfilter_nc(vp8_mbloop_filter_horizontal_edge_sse2);
+
+extern loop_filter_uvfunction vp8_loop_filter_horizontal_edge_uv_sse2;
+extern loop_filter_uvfunction vp8_loop_filter_vertical_edge_uv_sse2;
+extern loop_filter_uvfunction vp8_mbloop_filter_horizontal_edge_uv_sse2;
+extern loop_filter_uvfunction vp8_mbloop_filter_vertical_edge_uv_sse2;
+
+#if HAVE_MMX
+/* Horizontal MB filtering */
+void vp8_loop_filter_mbh_mmx(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                             int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_horizontal_edge_mmx(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_mbloop_filter_horizontal_edge_mmx(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_mbloop_filter_horizontal_edge_mmx(v_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+}
+
+
+/* Vertical MB Filtering */
+void vp8_loop_filter_mbv_mmx(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                             int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_vertical_edge_mmx(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_mbloop_filter_vertical_edge_mmx(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_mbloop_filter_vertical_edge_mmx(v_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, 1);
+}
+
+
+/* Horizontal B Filtering */
+void vp8_loop_filter_bh_mmx(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                            int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_loop_filter_horizontal_edge_mmx(y_ptr + 4 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_horizontal_edge_mmx(y_ptr + 8 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_horizontal_edge_mmx(y_ptr + 12 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_loop_filter_horizontal_edge_mmx(u_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_loop_filter_horizontal_edge_mmx(v_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+}
+
+
+void vp8_loop_filter_bhs_mmx(unsigned char *y_ptr, int y_stride, const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_horizontal_edge_mmx(y_ptr + 4 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_mmx(y_ptr + 8 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_mmx(y_ptr + 12 * y_stride, y_stride, blimit);
+}
+
+
+/* Vertical B Filtering */
+void vp8_loop_filter_bv_mmx(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                            int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_loop_filter_vertical_edge_mmx(y_ptr + 4, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_vertical_edge_mmx(y_ptr + 8, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+    vp8_loop_filter_vertical_edge_mmx(y_ptr + 12, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+
+    if (u_ptr)
+        vp8_loop_filter_vertical_edge_mmx(u_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+
+    if (v_ptr)
+        vp8_loop_filter_vertical_edge_mmx(v_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, 1);
+}
+
+
+void vp8_loop_filter_bvs_mmx(unsigned char *y_ptr, int y_stride, const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_vertical_edge_mmx(y_ptr + 4, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_mmx(y_ptr + 8, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_mmx(y_ptr + 12, y_stride, blimit);
+}
+#endif
+
+
+/* Horizontal MB filtering */
+#if HAVE_SSE2
+void vp8_loop_filter_mbh_sse2(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                              int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_horizontal_edge_sse2(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr);
+
+    if (u_ptr)
+        vp8_mbloop_filter_horizontal_edge_uv_sse2(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, v_ptr);
+}
+
+
+/* Vertical MB Filtering */
+void vp8_loop_filter_mbv_sse2(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                              int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+    vp8_mbloop_filter_vertical_edge_sse2(y_ptr, y_stride, lfi->mblim, lfi->lim, lfi->hev_thr);
+
+    if (u_ptr)
+        vp8_mbloop_filter_vertical_edge_uv_sse2(u_ptr, uv_stride, lfi->mblim, lfi->lim, lfi->hev_thr, v_ptr);
+}
+
+
+/* Horizontal B Filtering */
+void vp8_loop_filter_bh_sse2(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                             int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+#if ARCH_X86_64
+    vp8_loop_filter_bh_y_sse2(y_ptr, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+#else
+    vp8_loop_filter_horizontal_edge_sse2(y_ptr + 4 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr);
+    vp8_loop_filter_horizontal_edge_sse2(y_ptr + 8 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr);
+    vp8_loop_filter_horizontal_edge_sse2(y_ptr + 12 * y_stride, y_stride, lfi->blim, lfi->lim, lfi->hev_thr);
+#endif
+
+    if (u_ptr)
+        vp8_loop_filter_horizontal_edge_uv_sse2(u_ptr + 4 * uv_stride, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, v_ptr + 4 * uv_stride);
+}
+
+
+void vp8_loop_filter_bhs_sse2(unsigned char *y_ptr, int y_stride, const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_horizontal_edge_sse2(y_ptr + 4 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_sse2(y_ptr + 8 * y_stride, y_stride, blimit);
+    vp8_loop_filter_simple_horizontal_edge_sse2(y_ptr + 12 * y_stride, y_stride, blimit);
+}
+
+
+/* Vertical B Filtering */
+void vp8_loop_filter_bv_sse2(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr,
+                             int y_stride, int uv_stride, loop_filter_info *lfi)
+{
+#if ARCH_X86_64
+    vp8_loop_filter_bv_y_sse2(y_ptr, y_stride, lfi->blim, lfi->lim, lfi->hev_thr, 2);
+#else
+    vp8_loop_filter_vertical_edge_sse2(y_ptr + 4, y_stride, lfi->blim, lfi->lim, lfi->hev_thr);
+    vp8_loop_filter_vertical_edge_sse2(y_ptr + 8, y_stride, lfi->blim, lfi->lim, lfi->hev_thr);
+    vp8_loop_filter_vertical_edge_sse2(y_ptr + 12, y_stride, lfi->blim, lfi->lim, lfi->hev_thr);
+#endif
+
+    if (u_ptr)
+        vp8_loop_filter_vertical_edge_uv_sse2(u_ptr + 4, uv_stride, lfi->blim, lfi->lim, lfi->hev_thr, v_ptr + 4);
+}
+
+
+void vp8_loop_filter_bvs_sse2(unsigned char *y_ptr, int y_stride, const unsigned char *blimit)
+{
+    vp8_loop_filter_simple_vertical_edge_sse2(y_ptr + 4, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_sse2(y_ptr + 8, y_stride, blimit);
+    vp8_loop_filter_simple_vertical_edge_sse2(y_ptr + 12, y_stride, blimit);
+}
+
+#endif
diff --git a/media/libvpx/vp8/common/x86/mfqe_sse2.asm b/media/libvpx/vp8/common/x86/mfqe_sse2.asm
new file mode 100644
index 000000000..a8a7f568d
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/mfqe_sse2.asm
@@ -0,0 +1,287 @@
+;
+;  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_filter_by_weight16x16_sse2
+;(
+;    unsigned char *src,
+;    int            src_stride,
+;    unsigned char *dst,
+;    int            dst_stride,
+;    int            src_weight
+;)
+global sym(vp8_filter_by_weight16x16_sse2) PRIVATE
+sym(vp8_filter_by_weight16x16_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movd        xmm0, arg(4)                ; src_weight
+    pshuflw     xmm0, xmm0, 0x0             ; replicate to all low words
+    punpcklqdq  xmm0, xmm0                  ; replicate to all hi words
+
+    movdqa      xmm1, [GLOBAL(tMFQE)]
+    psubw       xmm1, xmm0                  ; dst_weight
+
+    mov         rax, arg(0)                 ; src
+    mov         rsi, arg(1)                 ; src_stride
+    mov         rdx, arg(2)                 ; dst
+    mov         rdi, arg(3)                 ; dst_stride
+
+    mov         rcx, 16                     ; loop count
+    pxor        xmm6, xmm6
+
+.combine
+    movdqa      xmm2, [rax]
+    movdqa      xmm4, [rdx]
+    add         rax, rsi
+
+    ; src * src_weight
+    movdqa      xmm3, xmm2
+    punpcklbw   xmm2, xmm6
+    punpckhbw   xmm3, xmm6
+    pmullw      xmm2, xmm0
+    pmullw      xmm3, xmm0
+
+    ; dst * dst_weight
+    movdqa      xmm5, xmm4
+    punpcklbw   xmm4, xmm6
+    punpckhbw   xmm5, xmm6
+    pmullw      xmm4, xmm1
+    pmullw      xmm5, xmm1
+
+    ; sum, round and shift
+    paddw       xmm2, xmm4
+    paddw       xmm3, xmm5
+    paddw       xmm2, [GLOBAL(tMFQE_round)]
+    paddw       xmm3, [GLOBAL(tMFQE_round)]
+    psrlw       xmm2, 4
+    psrlw       xmm3, 4
+
+    packuswb    xmm2, xmm3
+    movdqa      [rdx], xmm2
+    add         rdx, rdi
+
+    dec         rcx
+    jnz         .combine
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+
+    ret
+
+;void vp8_filter_by_weight8x8_sse2
+;(
+;    unsigned char *src,
+;    int            src_stride,
+;    unsigned char *dst,
+;    int            dst_stride,
+;    int            src_weight
+;)
+global sym(vp8_filter_by_weight8x8_sse2) PRIVATE
+sym(vp8_filter_by_weight8x8_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movd        xmm0, arg(4)                ; src_weight
+    pshuflw     xmm0, xmm0, 0x0             ; replicate to all low words
+    punpcklqdq  xmm0, xmm0                  ; replicate to all hi words
+
+    movdqa      xmm1, [GLOBAL(tMFQE)]
+    psubw       xmm1, xmm0                  ; dst_weight
+
+    mov         rax, arg(0)                 ; src
+    mov         rsi, arg(1)                 ; src_stride
+    mov         rdx, arg(2)                 ; dst
+    mov         rdi, arg(3)                 ; dst_stride
+
+    mov         rcx, 8                      ; loop count
+    pxor        xmm4, xmm4
+
+.combine
+    movq        xmm2, [rax]
+    movq        xmm3, [rdx]
+    add         rax, rsi
+
+    ; src * src_weight
+    punpcklbw   xmm2, xmm4
+    pmullw      xmm2, xmm0
+
+    ; dst * dst_weight
+    punpcklbw   xmm3, xmm4
+    pmullw      xmm3, xmm1
+
+    ; sum, round and shift
+    paddw       xmm2, xmm3
+    paddw       xmm2, [GLOBAL(tMFQE_round)]
+    psrlw       xmm2, 4
+
+    packuswb    xmm2, xmm4
+    movq        [rdx], xmm2
+    add         rdx, rdi
+
+    dec         rcx
+    jnz         .combine
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+
+    ret
+
+;void vp8_variance_and_sad_16x16_sse2 | arg
+;(
+;    unsigned char *src1,          0
+;    int            stride1,       1
+;    unsigned char *src2,          2
+;    int            stride2,       3
+;    unsigned int  *variance,      4
+;    unsigned int  *sad,           5
+;)
+global sym(vp8_variance_and_sad_16x16_sse2) PRIVATE
+sym(vp8_variance_and_sad_16x16_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    mov         rax,        arg(0)          ; src1
+    mov         rcx,        arg(1)          ; stride1
+    mov         rdx,        arg(2)          ; src2
+    mov         rdi,        arg(3)          ; stride2
+
+    mov         rsi,        16              ; block height
+
+    ; Prep accumulator registers
+    pxor        xmm3, xmm3                  ; SAD
+    pxor        xmm4, xmm4                  ; sum of src2
+    pxor        xmm5, xmm5                  ; sum of src2^2
+
+    ; Because we're working with the actual output frames
+    ; we can't depend on any kind of data alignment.
+.accumulate
+    movdqa      xmm0, [rax]                 ; src1
+    movdqa      xmm1, [rdx]                 ; src2
+    add         rax, rcx                    ; src1 + stride1
+    add         rdx, rdi                    ; src2 + stride2
+
+    ; SAD(src1, src2)
+    psadbw      xmm0, xmm1
+    paddusw     xmm3, xmm0
+
+    ; SUM(src2)
+    pxor        xmm2, xmm2
+    psadbw      xmm2, xmm1                  ; sum src2 by misusing SAD against 0
+    paddusw     xmm4, xmm2
+
+    ; pmaddubsw would be ideal if it took two unsigned values. instead,
+    ; it expects a signed and an unsigned value. so instead we zero extend
+    ; and operate on words.
+    pxor        xmm2, xmm2
+    movdqa      xmm0, xmm1
+    punpcklbw   xmm0, xmm2
+    punpckhbw   xmm1, xmm2
+    pmaddwd     xmm0, xmm0
+    pmaddwd     xmm1, xmm1
+    paddd       xmm5, xmm0
+    paddd       xmm5, xmm1
+
+    sub         rsi,        1
+    jnz         .accumulate
+
+    ; phaddd only operates on adjacent double words.
+    ; Finalize SAD and store
+    movdqa      xmm0, xmm3
+    psrldq      xmm0, 8
+    paddusw     xmm0, xmm3
+    paddd       xmm0, [GLOBAL(t128)]
+    psrld       xmm0, 8
+
+    mov         rax,  arg(5)
+    movd        [rax], xmm0
+
+    ; Accumulate sum of src2
+    movdqa      xmm0, xmm4
+    psrldq      xmm0, 8
+    paddusw     xmm0, xmm4
+    ; Square src2. Ignore high value
+    pmuludq     xmm0, xmm0
+    psrld       xmm0, 8
+
+    ; phaddw could be used to sum adjacent values but we want
+    ; all the values summed. promote to doubles, accumulate,
+    ; shift and sum
+    pxor        xmm2, xmm2
+    movdqa      xmm1, xmm5
+    punpckldq   xmm1, xmm2
+    punpckhdq   xmm5, xmm2
+    paddd       xmm1, xmm5
+    movdqa      xmm2, xmm1
+    psrldq      xmm1, 8
+    paddd       xmm1, xmm2
+
+    psubd       xmm1, xmm0
+
+    ; (variance + 128) >> 8
+    paddd       xmm1, [GLOBAL(t128)]
+    psrld       xmm1, 8
+    mov         rax,  arg(4)
+
+    movd        [rax], xmm1
+
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+t128:
+%ifndef __NASM_VER__
+    ddq 128
+%elif CONFIG_BIG_ENDIAN
+    dq  0, 128
+%else
+    dq  128, 0
+%endif
+align 16
+tMFQE: ; 1 << MFQE_PRECISION
+    times 8 dw 0x10
+align 16
+tMFQE_round: ; 1 << (MFQE_PRECISION - 1)
+    times 8 dw 0x08
+
diff --git a/media/libvpx/vp8/common/x86/postproc_mmx.asm b/media/libvpx/vp8/common/x86/postproc_mmx.asm
new file mode 100644
index 000000000..a2b16327f
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/postproc_mmx.asm
@@ -0,0 +1,315 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%define VP8_FILTER_WEIGHT 128
+%define VP8_FILTER_SHIFT  7
+
+;void vp8_mbpost_proc_down_mmx(unsigned char *dst,
+;                             int pitch, int rows, int cols,int flimit)
+extern sym(vp8_rv)
+global sym(vp8_mbpost_proc_down_mmx) PRIVATE
+sym(vp8_mbpost_proc_down_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 136
+
+    ; unsigned char d[16][8] at [rsp]
+    ; create flimit2 at [rsp+128]
+    mov         eax, dword ptr arg(4) ;flimit
+    mov         [rsp+128], eax
+    mov         [rsp+128+4], eax
+%define flimit2 [rsp+128]
+
+%if ABI_IS_32BIT=0
+    lea         r8,       [GLOBAL(sym(vp8_rv))]
+%endif
+
+    ;rows +=8;
+    add         dword ptr arg(2), 8
+
+    ;for(c=0; c<cols; c+=4)
+.loop_col:
+            mov         rsi,        arg(0)  ;s
+            pxor        mm0,        mm0     ;
+
+            movsxd      rax,        dword ptr arg(1) ;pitch       ;
+
+            ; this copies the last row down into the border 8 rows
+            mov         rdi,        rsi
+            mov         rdx,        arg(2)
+            sub         rdx,        9
+            imul        rdx,        rax
+            lea         rdi,        [rdi+rdx]
+            movq        mm1,        QWORD ptr[rdi]              ; first row
+            mov         rcx,        8
+.init_borderd                                                    ; initialize borders
+            lea         rdi,        [rdi + rax]
+            movq        [rdi],      mm1
+
+            dec         rcx
+            jne         .init_borderd
+
+            neg         rax                                     ; rax = -pitch
+
+            ; this copies the first row up into the border 8 rows
+            mov         rdi,        rsi
+            movq        mm1,        QWORD ptr[rdi]              ; first row
+            mov         rcx,        8
+.init_border                                                    ; initialize borders
+            lea         rdi,        [rdi + rax]
+            movq        [rdi],      mm1
+
+            dec         rcx
+            jne         .init_border
+
+
+            lea         rsi,        [rsi + rax*8];              ; rdi = s[-pitch*8]
+            neg         rax
+
+
+            pxor        mm5,        mm5
+            pxor        mm6,        mm6     ;
+
+            pxor        mm7,        mm7     ;
+            mov         rdi,        rsi
+
+            mov         rcx,        15          ;
+
+.loop_initvar:
+            movd        mm1,        DWORD PTR [rdi];
+            punpcklbw   mm1,        mm0     ;
+
+            paddw       mm5,        mm1     ;
+            pmullw      mm1,        mm1     ;
+
+            movq        mm2,        mm1     ;
+            punpcklwd   mm1,        mm0     ;
+
+            punpckhwd   mm2,        mm0     ;
+            paddd       mm6,        mm1     ;
+
+            paddd       mm7,        mm2     ;
+            lea         rdi,        [rdi+rax]   ;
+
+            dec         rcx
+            jne         .loop_initvar
+            ;save the var and sum
+            xor         rdx,        rdx
+.loop_row:
+            movd        mm1,        DWORD PTR [rsi]     ; [s-pitch*8]
+            movd        mm2,        DWORD PTR [rdi]     ; [s+pitch*7]
+
+            punpcklbw   mm1,        mm0
+            punpcklbw   mm2,        mm0
+
+            paddw       mm5,        mm2
+            psubw       mm5,        mm1
+
+            pmullw      mm2,        mm2
+            movq        mm4,        mm2
+
+            punpcklwd   mm2,        mm0
+            punpckhwd   mm4,        mm0
+
+            paddd       mm6,        mm2
+            paddd       mm7,        mm4
+
+            pmullw      mm1,        mm1
+            movq        mm2,        mm1
+
+            punpcklwd   mm1,        mm0
+            psubd       mm6,        mm1
+
+            punpckhwd   mm2,        mm0
+            psubd       mm7,        mm2
+
+
+            movq        mm3,        mm6
+            pslld       mm3,        4
+
+            psubd       mm3,        mm6
+            movq        mm1,        mm5
+
+            movq        mm4,        mm5
+            pmullw      mm1,        mm1
+
+            pmulhw      mm4,        mm4
+            movq        mm2,        mm1
+
+            punpcklwd   mm1,        mm4
+            punpckhwd   mm2,        mm4
+
+            movq        mm4,        mm7
+            pslld       mm4,        4
+
+            psubd       mm4,        mm7
+
+            psubd       mm3,        mm1
+            psubd       mm4,        mm2
+
+            psubd       mm3,        flimit2
+            psubd       mm4,        flimit2
+
+            psrad       mm3,        31
+            psrad       mm4,        31
+
+            packssdw    mm3,        mm4
+            packsswb    mm3,        mm0
+
+            movd        mm1,        DWORD PTR [rsi+rax*8]
+
+            movq        mm2,        mm1
+            punpcklbw   mm1,        mm0
+
+            paddw       mm1,        mm5
+            mov         rcx,        rdx
+
+            and         rcx,        127
+%if ABI_IS_32BIT=1 && CONFIG_PIC=1
+            push        rax
+            lea         rax,        [GLOBAL(sym(vp8_rv))]
+            movq        mm4,        [rax + rcx*2] ;vp8_rv[rcx*2]
+            pop         rax
+%elif ABI_IS_32BIT=0
+            movq        mm4,        [r8 + rcx*2] ;vp8_rv[rcx*2]
+%else
+            movq        mm4,        [sym(vp8_rv) + rcx*2]
+%endif
+            paddw       mm1,        mm4
+            psraw       mm1,        4
+
+            packuswb    mm1,        mm0
+            pand        mm1,        mm3
+
+            pandn       mm3,        mm2
+            por         mm1,        mm3
+
+            and         rcx,        15
+            movd        DWORD PTR   [rsp+rcx*4], mm1 ;d[rcx*4]
+
+            cmp         edx,        8
+            jl          .skip_assignment
+
+            mov         rcx,        rdx
+            sub         rcx,        8
+            and         rcx,        15
+            movd        mm1,        DWORD PTR [rsp+rcx*4] ;d[rcx*4]
+            movd        [rsi],      mm1
+
+.skip_assignment
+            lea         rsi,        [rsi+rax]
+
+            lea         rdi,        [rdi+rax]
+            add         rdx,        1
+
+            cmp         edx,        dword arg(2) ;rows
+            jl          .loop_row
+
+
+        add         dword arg(0), 4 ; s += 4
+        sub         dword arg(3), 4 ; cols -= 4
+        cmp         dword arg(3), 0
+        jg          .loop_col
+
+    add         rsp, 136
+    pop         rsp
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%undef flimit2
+
+
+;void vp8_plane_add_noise_mmx (unsigned char *Start, unsigned char *noise,
+;                            unsigned char blackclamp[16],
+;                            unsigned char whiteclamp[16],
+;                            unsigned char bothclamp[16],
+;                            unsigned int Width, unsigned int Height, int Pitch)
+global sym(vp8_plane_add_noise_mmx) PRIVATE
+sym(vp8_plane_add_noise_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+.addnoise_loop:
+    call sym(LIBVPX_RAND) WRT_PLT
+    mov     rcx, arg(1) ;noise
+    and     rax, 0xff
+    add     rcx, rax
+
+    ; we rely on the fact that the clamping vectors are stored contiguously
+    ; in black/white/both order. Note that we have to reload this here because
+    ; rdx could be trashed by rand()
+    mov     rdx, arg(2) ; blackclamp
+
+
+            mov     rdi, rcx
+            movsxd  rcx, dword arg(5) ;[Width]
+            mov     rsi, arg(0) ;Pos
+            xor         rax,rax
+
+.addnoise_nextset:
+            movq        mm1,[rsi+rax]         ; get the source
+
+            psubusb     mm1, [rdx]    ;blackclamp        ; clamp both sides so we don't outrange adding noise
+            paddusb     mm1, [rdx+32] ;bothclamp
+            psubusb     mm1, [rdx+16] ;whiteclamp
+
+            movq        mm2,[rdi+rax]         ; get the noise for this line
+            paddb       mm1,mm2              ; add it in
+            movq        [rsi+rax],mm1         ; store the result
+
+            add         rax,8                 ; move to the next line
+
+            cmp         rax, rcx
+            jl          .addnoise_nextset
+
+    movsxd  rax, dword arg(7) ; Pitch
+    add     arg(0), rax ; Start += Pitch
+    sub     dword arg(6), 1   ; Height -= 1
+    jg      .addnoise_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+SECTION_RODATA
+align 16
+Blur:
+    times 16 dw 16
+    times  8 dw 64
+    times 16 dw 16
+    times  8 dw  0
+
+rd:
+    times 4 dw 0x40
diff --git a/media/libvpx/vp8/common/x86/postproc_sse2.asm b/media/libvpx/vp8/common/x86/postproc_sse2.asm
new file mode 100644
index 000000000..fed4ee5cc
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/postproc_sse2.asm
@@ -0,0 +1,723 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;macro in deblock functions
+%macro FIRST_2_ROWS 0
+        movdqa      xmm4,       xmm0
+        movdqa      xmm6,       xmm0
+        movdqa      xmm5,       xmm1
+        pavgb       xmm5,       xmm3
+
+        ;calculate absolute value
+        psubusb     xmm4,       xmm1
+        psubusb     xmm1,       xmm0
+        psubusb     xmm6,       xmm3
+        psubusb     xmm3,       xmm0
+        paddusb     xmm4,       xmm1
+        paddusb     xmm6,       xmm3
+
+        ;get threshold
+        movdqa      xmm2,       flimit
+        pxor        xmm1,       xmm1
+        movdqa      xmm7,       xmm2
+
+        ;get mask
+        psubusb     xmm2,       xmm4
+        psubusb     xmm7,       xmm6
+        pcmpeqb     xmm2,       xmm1
+        pcmpeqb     xmm7,       xmm1
+        por         xmm7,       xmm2
+%endmacro
+
+%macro SECOND_2_ROWS 0
+        movdqa      xmm6,       xmm0
+        movdqa      xmm4,       xmm0
+        movdqa      xmm2,       xmm1
+        pavgb       xmm1,       xmm3
+
+        ;calculate absolute value
+        psubusb     xmm6,       xmm2
+        psubusb     xmm2,       xmm0
+        psubusb     xmm4,       xmm3
+        psubusb     xmm3,       xmm0
+        paddusb     xmm6,       xmm2
+        paddusb     xmm4,       xmm3
+
+        pavgb       xmm5,       xmm1
+
+        ;get threshold
+        movdqa      xmm2,       flimit
+        pxor        xmm1,       xmm1
+        movdqa      xmm3,       xmm2
+
+        ;get mask
+        psubusb     xmm2,       xmm6
+        psubusb     xmm3,       xmm4
+        pcmpeqb     xmm2,       xmm1
+        pcmpeqb     xmm3,       xmm1
+
+        por         xmm7,       xmm2
+        por         xmm7,       xmm3
+
+        pavgb       xmm5,       xmm0
+
+        ;decide if or not to use filtered value
+        pand        xmm0,       xmm7
+        pandn       xmm7,       xmm5
+        paddusb     xmm0,       xmm7
+%endmacro
+
+%macro UPDATE_FLIMIT 0
+        movdqa      xmm2,       XMMWORD PTR [rbx]
+        movdqa      [rsp],      xmm2
+        add         rbx,        16
+%endmacro
+
+;void vp8_post_proc_down_and_across_mb_row_sse2
+;(
+;    unsigned char *src_ptr,
+;    unsigned char *dst_ptr,
+;    int src_pixels_per_line,
+;    int dst_pixels_per_line,
+;    int cols,
+;    int *flimits,
+;    int size
+;)
+global sym(vp8_post_proc_down_and_across_mb_row_sse2) PRIVATE
+sym(vp8_post_proc_down_and_across_mb_row_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    push        rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+    ALIGN_STACK 16, rax
+    sub         rsp, 16
+
+        ; put flimit on stack
+        mov         rbx,        arg(5)           ;flimits ptr
+        UPDATE_FLIMIT
+
+%define flimit [rsp]
+
+        mov         rsi,        arg(0)           ;src_ptr
+        mov         rdi,        arg(1)           ;dst_ptr
+
+        movsxd      rax,        DWORD PTR arg(2) ;src_pixels_per_line
+        movsxd      rcx,        DWORD PTR arg(6) ;rows in a macroblock
+.nextrow:
+        xor         rdx,        rdx              ;col
+.nextcol:
+        ;load current and next 2 rows
+        movdqu      xmm0,       XMMWORD PTR [rsi]
+        movdqu      xmm1,       XMMWORD PTR [rsi + rax]
+        movdqu      xmm3,       XMMWORD PTR [rsi + 2*rax]
+
+        FIRST_2_ROWS
+
+        ;load above 2 rows
+        neg         rax
+        movdqu      xmm1,       XMMWORD PTR [rsi + 2*rax]
+        movdqu      xmm3,       XMMWORD PTR [rsi + rax]
+
+        SECOND_2_ROWS
+
+        movdqu      XMMWORD PTR [rdi], xmm0
+
+        neg         rax                          ; positive stride
+        add         rsi,        16
+        add         rdi,        16
+
+        add         rdx,        16
+        cmp         edx,        dword arg(4)     ;cols
+        jge         .downdone
+        UPDATE_FLIMIT
+        jmp         .nextcol
+
+.downdone:
+        ; done with the all cols, start the across filtering in place
+        sub         rsi,        rdx
+        sub         rdi,        rdx
+
+        mov         rbx,        arg(5) ; flimits
+        UPDATE_FLIMIT
+
+        ; dup the first byte into the left border 8 times
+        movq        mm1,   [rdi]
+        punpcklbw   mm1,   mm1
+        punpcklwd   mm1,   mm1
+        punpckldq   mm1,   mm1
+        mov         rdx,    -8
+        movq        [rdi+rdx], mm1
+
+        ; dup the last byte into the right border
+        movsxd      rdx,    dword arg(4)
+        movq        mm1,   [rdi + rdx + -1]
+        punpcklbw   mm1,   mm1
+        punpcklwd   mm1,   mm1
+        punpckldq   mm1,   mm1
+        movq        [rdi+rdx], mm1
+
+        xor         rdx,        rdx
+        movq        mm0,        QWORD PTR [rdi-16];
+        movq        mm1,        QWORD PTR [rdi-8];
+
+.acrossnextcol:
+        movdqu      xmm0,       XMMWORD PTR [rdi + rdx]
+        movdqu      xmm1,       XMMWORD PTR [rdi + rdx -2]
+        movdqu      xmm3,       XMMWORD PTR [rdi + rdx -1]
+
+        FIRST_2_ROWS
+
+        movdqu      xmm1,       XMMWORD PTR [rdi + rdx +1]
+        movdqu      xmm3,       XMMWORD PTR [rdi + rdx +2]
+
+        SECOND_2_ROWS
+
+        movq        QWORD PTR [rdi+rdx-16], mm0  ; store previous 8 bytes
+        movq        QWORD PTR [rdi+rdx-8], mm1   ; store previous 8 bytes
+        movdq2q     mm0,        xmm0
+        psrldq      xmm0,       8
+        movdq2q     mm1,        xmm0
+
+        add         rdx,        16
+        cmp         edx,        dword arg(4)     ;cols
+        jge         .acrossdone
+        UPDATE_FLIMIT
+        jmp         .acrossnextcol
+
+.acrossdone
+        ; last 16 pixels
+        movq        QWORD PTR [rdi+rdx-16], mm0
+
+        cmp         edx,        dword arg(4)
+        jne         .throw_last_8
+        movq        QWORD PTR [rdi+rdx-8], mm1
+.throw_last_8:
+        ; done with this rwo
+        add         rsi,rax                      ;next src line
+        mov         eax, dword arg(3)            ;dst_pixels_per_line
+        add         rdi,rax                      ;next destination
+        mov         eax, dword arg(2)            ;src_pixels_per_line
+
+        mov         rbx,        arg(5)           ;flimits
+        UPDATE_FLIMIT
+
+        dec         rcx                          ;decrement count
+        jnz         .nextrow                     ;next row
+
+    add rsp, 16
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    pop rbx
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%undef flimit
+
+;void vp8_mbpost_proc_down_xmm(unsigned char *dst,
+;                            int pitch, int rows, int cols,int flimit)
+extern sym(vp8_rv)
+global sym(vp8_mbpost_proc_down_xmm) PRIVATE
+sym(vp8_mbpost_proc_down_xmm):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 128+16
+
+    ; unsigned char d[16][8] at [rsp]
+    ; create flimit2 at [rsp+128]
+    mov         eax, dword ptr arg(4) ;flimit
+    mov         [rsp+128], eax
+    mov         [rsp+128+4], eax
+    mov         [rsp+128+8], eax
+    mov         [rsp+128+12], eax
+%define flimit4 [rsp+128]
+
+%if ABI_IS_32BIT=0
+    lea         r8,       [GLOBAL(sym(vp8_rv))]
+%endif
+
+    ;rows +=8;
+    add         dword arg(2), 8
+
+    ;for(c=0; c<cols; c+=8)
+.loop_col:
+            mov         rsi,        arg(0) ; s
+            pxor        xmm0,       xmm0        ;
+
+            movsxd      rax,        dword ptr arg(1) ;pitch       ;
+
+            ; this copies the last row down into the border 8 rows
+            mov         rdi,        rsi
+            mov         rdx,        arg(2)
+            sub         rdx,        9
+            imul        rdx,        rax
+            lea         rdi,        [rdi+rdx]
+            movq        xmm1,       QWORD ptr[rdi]              ; first row
+            mov         rcx,        8
+.init_borderd                                                    ; initialize borders
+            lea         rdi,        [rdi + rax]
+            movq        [rdi],      xmm1
+
+            dec         rcx
+            jne         .init_borderd
+
+            neg         rax                                     ; rax = -pitch
+
+            ; this copies the first row up into the border 8 rows
+            mov         rdi,        rsi
+            movq        xmm1,       QWORD ptr[rdi]              ; first row
+            mov         rcx,        8
+.init_border                                                    ; initialize borders
+            lea         rdi,        [rdi + rax]
+            movq        [rdi],      xmm1
+
+            dec         rcx
+            jne         .init_border
+
+
+
+            lea         rsi,        [rsi + rax*8];              ; rdi = s[-pitch*8]
+            neg         rax
+
+            pxor        xmm5,       xmm5
+            pxor        xmm6,       xmm6        ;
+
+            pxor        xmm7,       xmm7        ;
+            mov         rdi,        rsi
+
+            mov         rcx,        15          ;
+
+.loop_initvar:
+            movq        xmm1,       QWORD PTR [rdi];
+            punpcklbw   xmm1,       xmm0        ;
+
+            paddw       xmm5,       xmm1        ;
+            pmullw      xmm1,       xmm1        ;
+
+            movdqa      xmm2,       xmm1        ;
+            punpcklwd   xmm1,       xmm0        ;
+
+            punpckhwd   xmm2,       xmm0        ;
+            paddd       xmm6,       xmm1        ;
+
+            paddd       xmm7,       xmm2        ;
+            lea         rdi,        [rdi+rax]   ;
+
+            dec         rcx
+            jne         .loop_initvar
+            ;save the var and sum
+            xor         rdx,        rdx
+.loop_row:
+            movq        xmm1,       QWORD PTR [rsi]     ; [s-pitch*8]
+            movq        xmm2,       QWORD PTR [rdi]     ; [s+pitch*7]
+
+            punpcklbw   xmm1,       xmm0
+            punpcklbw   xmm2,       xmm0
+
+            paddw       xmm5,       xmm2
+            psubw       xmm5,       xmm1
+
+            pmullw      xmm2,       xmm2
+            movdqa      xmm4,       xmm2
+
+            punpcklwd   xmm2,       xmm0
+            punpckhwd   xmm4,       xmm0
+
+            paddd       xmm6,       xmm2
+            paddd       xmm7,       xmm4
+
+            pmullw      xmm1,       xmm1
+            movdqa      xmm2,       xmm1
+
+            punpcklwd   xmm1,       xmm0
+            psubd       xmm6,       xmm1
+
+            punpckhwd   xmm2,       xmm0
+            psubd       xmm7,       xmm2
+
+
+            movdqa      xmm3,       xmm6
+            pslld       xmm3,       4
+
+            psubd       xmm3,       xmm6
+            movdqa      xmm1,       xmm5
+
+            movdqa      xmm4,       xmm5
+            pmullw      xmm1,       xmm1
+
+            pmulhw      xmm4,       xmm4
+            movdqa      xmm2,       xmm1
+
+            punpcklwd   xmm1,       xmm4
+            punpckhwd   xmm2,       xmm4
+
+            movdqa      xmm4,       xmm7
+            pslld       xmm4,       4
+
+            psubd       xmm4,       xmm7
+
+            psubd       xmm3,       xmm1
+            psubd       xmm4,       xmm2
+
+            psubd       xmm3,       flimit4
+            psubd       xmm4,       flimit4
+
+            psrad       xmm3,       31
+            psrad       xmm4,       31
+
+            packssdw    xmm3,       xmm4
+            packsswb    xmm3,       xmm0
+
+            movq        xmm1,       QWORD PTR [rsi+rax*8]
+
+            movq        xmm2,       xmm1
+            punpcklbw   xmm1,       xmm0
+
+            paddw       xmm1,       xmm5
+            mov         rcx,        rdx
+
+            and         rcx,        127
+%if ABI_IS_32BIT=1 && CONFIG_PIC=1
+            push        rax
+            lea         rax,        [GLOBAL(sym(vp8_rv))]
+            movdqu      xmm4,       [rax + rcx*2] ;vp8_rv[rcx*2]
+            pop         rax
+%elif ABI_IS_32BIT=0
+            movdqu      xmm4,       [r8 + rcx*2] ;vp8_rv[rcx*2]
+%else
+            movdqu      xmm4,       [sym(vp8_rv) + rcx*2]
+%endif
+
+            paddw       xmm1,       xmm4
+            ;paddw     xmm1,       eight8s
+            psraw       xmm1,       4
+
+            packuswb    xmm1,       xmm0
+            pand        xmm1,       xmm3
+
+            pandn       xmm3,       xmm2
+            por         xmm1,       xmm3
+
+            and         rcx,        15
+            movq        QWORD PTR   [rsp + rcx*8], xmm1 ;d[rcx*8]
+
+            cmp         edx,        8
+            jl          .skip_assignment
+
+            mov         rcx,        rdx
+            sub         rcx,        8
+            and         rcx,        15
+            movq        mm0,        [rsp + rcx*8] ;d[rcx*8]
+            movq        [rsi],      mm0
+
+.skip_assignment
+            lea         rsi,        [rsi+rax]
+
+            lea         rdi,        [rdi+rax]
+            add         rdx,        1
+
+            cmp         edx,        dword arg(2) ;rows
+            jl          .loop_row
+
+        add         dword arg(0), 8 ; s += 8
+        sub         dword arg(3), 8 ; cols -= 8
+        cmp         dword arg(3), 0
+        jg          .loop_col
+
+    add         rsp, 128+16
+    pop         rsp
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%undef flimit4
+
+
+;void vp8_mbpost_proc_across_ip_xmm(unsigned char *src,
+;                                int pitch, int rows, int cols,int flimit)
+global sym(vp8_mbpost_proc_across_ip_xmm) PRIVATE
+sym(vp8_mbpost_proc_across_ip_xmm):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 16
+
+    ; create flimit4 at [rsp]
+    mov         eax, dword ptr arg(4) ;flimit
+    mov         [rsp], eax
+    mov         [rsp+4], eax
+    mov         [rsp+8], eax
+    mov         [rsp+12], eax
+%define flimit4 [rsp]
+
+
+    ;for(r=0;r<rows;r++)
+.ip_row_loop:
+
+        xor         rdx,    rdx ;sumsq=0;
+        xor         rcx,    rcx ;sum=0;
+        mov         rsi,    arg(0); s
+
+
+        ; dup the first byte into the left border 8 times
+        movq        mm1,   [rsi]
+        punpcklbw   mm1,   mm1
+        punpcklwd   mm1,   mm1
+        punpckldq   mm1,   mm1
+
+        mov         rdi,    -8
+        movq        [rsi+rdi], mm1
+
+        ; dup the last byte into the right border
+        movsxd      rdx,    dword arg(3)
+        movq        mm1,   [rsi + rdx + -1]
+        punpcklbw   mm1,   mm1
+        punpcklwd   mm1,   mm1
+        punpckldq   mm1,   mm1
+        movq        [rsi+rdx], mm1
+
+.ip_var_loop:
+        ;for(i=-8;i<=6;i++)
+        ;{
+        ;    sumsq += s[i]*s[i];
+        ;    sum   += s[i];
+        ;}
+        movzx       eax, byte [rsi+rdi]
+        add         ecx, eax
+        mul         al
+        add         edx, eax
+        add         rdi, 1
+        cmp         rdi, 6
+        jle         .ip_var_loop
+
+
+            ;mov         rax,    sumsq
+            ;movd        xmm7,   rax
+            movd        xmm7,   edx
+
+            ;mov         rax,    sum
+            ;movd        xmm6,   rax
+            movd        xmm6,   ecx
+
+            mov         rsi,    arg(0) ;s
+            xor         rcx,    rcx
+
+            movsxd      rdx,    dword arg(3) ;cols
+            add         rdx,    8
+            pxor        mm0,    mm0
+            pxor        mm1,    mm1
+
+            pxor        xmm0,   xmm0
+.nextcol4:
+
+            movd        xmm1,   DWORD PTR [rsi+rcx-8]   ; -8 -7 -6 -5
+            movd        xmm2,   DWORD PTR [rsi+rcx+7]   ; +7 +8 +9 +10
+
+            punpcklbw   xmm1,   xmm0                    ; expanding
+            punpcklbw   xmm2,   xmm0                    ; expanding
+
+            punpcklwd   xmm1,   xmm0                    ; expanding to dwords
+            punpcklwd   xmm2,   xmm0                    ; expanding to dwords
+
+            psubd       xmm2,   xmm1                    ; 7--8   8--7   9--6 10--5
+            paddd       xmm1,   xmm1                    ; -8*2   -7*2   -6*2 -5*2
+
+            paddd       xmm1,   xmm2                    ; 7+-8   8+-7   9+-6 10+-5
+            pmaddwd     xmm1,   xmm2                    ; squared of 7+-8   8+-7   9+-6 10+-5
+
+            paddd       xmm6,   xmm2
+            paddd       xmm7,   xmm1
+
+            pshufd      xmm6,   xmm6,   0               ; duplicate the last ones
+            pshufd      xmm7,   xmm7,   0               ; duplicate the last ones
+
+            psrldq      xmm1,       4                   ; 8--7   9--6 10--5  0000
+            psrldq      xmm2,       4                   ; 8--7   9--6 10--5  0000
+
+            pshufd      xmm3,   xmm1,   3               ; 0000  8--7   8--7   8--7 squared
+            pshufd      xmm4,   xmm2,   3               ; 0000  8--7   8--7   8--7 squared
+
+            paddd       xmm6,   xmm4
+            paddd       xmm7,   xmm3
+
+            pshufd      xmm3,   xmm1,   01011111b       ; 0000  0000   9--6   9--6 squared
+            pshufd      xmm4,   xmm2,   01011111b       ; 0000  0000   9--6   9--6 squared
+
+            paddd       xmm7,   xmm3
+            paddd       xmm6,   xmm4
+
+            pshufd      xmm3,   xmm1,   10111111b       ; 0000  0000   8--7   8--7 squared
+            pshufd      xmm4,   xmm2,   10111111b       ; 0000  0000   8--7   8--7 squared
+
+            paddd       xmm7,   xmm3
+            paddd       xmm6,   xmm4
+
+            movdqa      xmm3,   xmm6
+            pmaddwd     xmm3,   xmm3
+
+            movdqa      xmm5,   xmm7
+            pslld       xmm5,   4
+
+            psubd       xmm5,   xmm7
+            psubd       xmm5,   xmm3
+
+            psubd       xmm5,   flimit4
+            psrad       xmm5,   31
+
+            packssdw    xmm5,   xmm0
+            packsswb    xmm5,   xmm0
+
+            movd        xmm1,   DWORD PTR [rsi+rcx]
+            movq        xmm2,   xmm1
+
+            punpcklbw   xmm1,   xmm0
+            punpcklwd   xmm1,   xmm0
+
+            paddd       xmm1,   xmm6
+            paddd       xmm1,   [GLOBAL(four8s)]
+
+            psrad       xmm1,   4
+            packssdw    xmm1,   xmm0
+
+            packuswb    xmm1,   xmm0
+            pand        xmm1,   xmm5
+
+            pandn       xmm5,   xmm2
+            por         xmm5,   xmm1
+
+            movd        [rsi+rcx-8],  mm0
+            movq        mm0,    mm1
+
+            movdq2q     mm1,    xmm5
+            psrldq      xmm7,   12
+
+            psrldq      xmm6,   12
+            add         rcx,    4
+
+            cmp         rcx,    rdx
+            jl          .nextcol4
+
+        ;s+=pitch;
+        movsxd rax, dword arg(1)
+        add    arg(0), rax
+
+        sub dword arg(2), 1 ;rows-=1
+        cmp dword arg(2), 0
+        jg .ip_row_loop
+
+    add         rsp, 16
+    pop         rsp
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%undef flimit4
+
+
+;void vp8_plane_add_noise_wmt (unsigned char *Start, unsigned char *noise,
+;                            unsigned char blackclamp[16],
+;                            unsigned char whiteclamp[16],
+;                            unsigned char bothclamp[16],
+;                            unsigned int Width, unsigned int Height, int Pitch)
+global sym(vp8_plane_add_noise_wmt) PRIVATE
+sym(vp8_plane_add_noise_wmt):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+.addnoise_loop:
+    call sym(LIBVPX_RAND) WRT_PLT
+    mov     rcx, arg(1) ;noise
+    and     rax, 0xff
+    add     rcx, rax
+
+    ; we rely on the fact that the clamping vectors are stored contiguously
+    ; in black/white/both order. Note that we have to reload this here because
+    ; rdx could be trashed by rand()
+    mov     rdx, arg(2) ; blackclamp
+
+
+            mov     rdi, rcx
+            movsxd  rcx, dword arg(5) ;[Width]
+            mov     rsi, arg(0) ;Pos
+            xor         rax,rax
+
+.addnoise_nextset:
+            movdqu      xmm1,[rsi+rax]         ; get the source
+
+            psubusb     xmm1, [rdx]    ;blackclamp        ; clamp both sides so we don't outrange adding noise
+            paddusb     xmm1, [rdx+32] ;bothclamp
+            psubusb     xmm1, [rdx+16] ;whiteclamp
+
+            movdqu      xmm2,[rdi+rax]         ; get the noise for this line
+            paddb       xmm1,xmm2              ; add it in
+            movdqu      [rsi+rax],xmm1         ; store the result
+
+            add         rax,16                 ; move to the next line
+
+            cmp         rax, rcx
+            jl          .addnoise_nextset
+
+    movsxd  rax, dword arg(7) ; Pitch
+    add     arg(0), rax ; Start += Pitch
+    sub     dword arg(6), 1   ; Height -= 1
+    jg      .addnoise_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+SECTION_RODATA
+align 16
+four8s:
+    times 4 dd 8
diff --git a/media/libvpx/vp8/common/x86/recon_mmx.asm b/media/libvpx/vp8/common/x86/recon_mmx.asm
new file mode 100644
index 000000000..15e98713c
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/recon_mmx.asm
@@ -0,0 +1,274 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+
+;void copy_mem8x8_mmx(
+;    unsigned char *src,
+;    int src_stride,
+;    unsigned char *dst,
+;    int dst_stride
+;    )
+global sym(vp8_copy_mem8x8_mmx) PRIVATE
+sym(vp8_copy_mem8x8_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0) ;src;
+        movq        mm0,        [rsi]
+
+        movsxd      rax,        dword ptr arg(1) ;src_stride;
+        mov         rdi,        arg(2) ;dst;
+
+        movq        mm1,        [rsi+rax]
+        movq        mm2,        [rsi+rax*2]
+
+        movsxd      rcx,        dword ptr arg(3) ;dst_stride
+        lea         rsi,        [rsi+rax*2]
+
+        movq        [rdi],      mm0
+        add         rsi,        rax
+
+        movq        [rdi+rcx],      mm1
+        movq        [rdi+rcx*2],    mm2
+
+
+        lea         rdi,        [rdi+rcx*2]
+        movq        mm3,        [rsi]
+
+        add         rdi,        rcx
+        movq        mm4,        [rsi+rax]
+
+        movq        mm5,        [rsi+rax*2]
+        movq        [rdi],      mm3
+
+        lea         rsi,        [rsi+rax*2]
+        movq        [rdi+rcx],  mm4
+
+        movq        [rdi+rcx*2],    mm5
+        lea         rdi,        [rdi+rcx*2]
+
+        movq        mm0,        [rsi+rax]
+        movq        mm1,        [rsi+rax*2]
+
+        movq        [rdi+rcx],  mm0
+        movq        [rdi+rcx*2],mm1
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void copy_mem8x4_mmx(
+;    unsigned char *src,
+;    int src_stride,
+;    unsigned char *dst,
+;    int dst_stride
+;    )
+global sym(vp8_copy_mem8x4_mmx) PRIVATE
+sym(vp8_copy_mem8x4_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0) ;src;
+        movq        mm0,        [rsi]
+
+        movsxd      rax,        dword ptr arg(1) ;src_stride;
+        mov         rdi,        arg(2) ;dst;
+
+        movq        mm1,        [rsi+rax]
+        movq        mm2,        [rsi+rax*2]
+
+        movsxd      rcx,        dword ptr arg(3) ;dst_stride
+        lea         rsi,        [rsi+rax*2]
+
+        movq        [rdi],      mm0
+        movq        [rdi+rcx],      mm1
+
+        movq        [rdi+rcx*2],    mm2
+        lea         rdi,        [rdi+rcx*2]
+
+        movq        mm3,        [rsi+rax]
+        movq        [rdi+rcx],      mm3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void copy_mem16x16_mmx(
+;    unsigned char *src,
+;    int src_stride,
+;    unsigned char *dst,
+;    int dst_stride
+;    )
+global sym(vp8_copy_mem16x16_mmx) PRIVATE
+sym(vp8_copy_mem16x16_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0) ;src;
+        movsxd      rax,        dword ptr arg(1) ;src_stride;
+
+        mov         rdi,        arg(2) ;dst;
+        movsxd      rcx,        dword ptr arg(3) ;dst_stride
+
+        movq        mm0,            [rsi]
+        movq        mm3,            [rsi+8];
+
+        movq        mm1,            [rsi+rax]
+        movq        mm4,            [rsi+rax+8]
+
+        movq        mm2,            [rsi+rax*2]
+        movq        mm5,            [rsi+rax*2+8]
+
+        lea         rsi,            [rsi+rax*2]
+        add         rsi,            rax
+
+        movq        [rdi],          mm0
+        movq        [rdi+8],        mm3
+
+        movq        [rdi+rcx],      mm1
+        movq        [rdi+rcx+8],    mm4
+
+        movq        [rdi+rcx*2],    mm2
+        movq        [rdi+rcx*2+8],  mm5
+
+        lea         rdi,            [rdi+rcx*2]
+        add         rdi,            rcx
+
+        movq        mm0,            [rsi]
+        movq        mm3,            [rsi+8];
+
+        movq        mm1,            [rsi+rax]
+        movq        mm4,            [rsi+rax+8]
+
+        movq        mm2,            [rsi+rax*2]
+        movq        mm5,            [rsi+rax*2+8]
+
+        lea         rsi,            [rsi+rax*2]
+        add         rsi,            rax
+
+        movq        [rdi],          mm0
+        movq        [rdi+8],        mm3
+
+        movq        [rdi+rcx],      mm1
+        movq        [rdi+rcx+8],    mm4
+
+        movq        [rdi+rcx*2],    mm2
+        movq        [rdi+rcx*2+8],  mm5
+
+        lea         rdi,            [rdi+rcx*2]
+        add         rdi,            rcx
+
+        movq        mm0,            [rsi]
+        movq        mm3,            [rsi+8];
+
+        movq        mm1,            [rsi+rax]
+        movq        mm4,            [rsi+rax+8]
+
+        movq        mm2,            [rsi+rax*2]
+        movq        mm5,            [rsi+rax*2+8]
+
+        lea         rsi,            [rsi+rax*2]
+        add         rsi,            rax
+
+        movq        [rdi],          mm0
+        movq        [rdi+8],        mm3
+
+        movq        [rdi+rcx],      mm1
+        movq        [rdi+rcx+8],    mm4
+
+        movq        [rdi+rcx*2],    mm2
+        movq        [rdi+rcx*2+8],  mm5
+
+        lea         rdi,            [rdi+rcx*2]
+        add         rdi,            rcx
+
+        movq        mm0,            [rsi]
+        movq        mm3,            [rsi+8];
+
+        movq        mm1,            [rsi+rax]
+        movq        mm4,            [rsi+rax+8]
+
+        movq        mm2,            [rsi+rax*2]
+        movq        mm5,            [rsi+rax*2+8]
+
+        lea         rsi,            [rsi+rax*2]
+        add         rsi,            rax
+
+        movq        [rdi],          mm0
+        movq        [rdi+8],        mm3
+
+        movq        [rdi+rcx],      mm1
+        movq        [rdi+rcx+8],    mm4
+
+        movq        [rdi+rcx*2],    mm2
+        movq        [rdi+rcx*2+8],  mm5
+
+        lea         rdi,            [rdi+rcx*2]
+        add         rdi,            rcx
+
+        movq        mm0,            [rsi]
+        movq        mm3,            [rsi+8];
+
+        movq        mm1,            [rsi+rax]
+        movq        mm4,            [rsi+rax+8]
+
+        movq        mm2,            [rsi+rax*2]
+        movq        mm5,            [rsi+rax*2+8]
+
+        lea         rsi,            [rsi+rax*2]
+        add         rsi,            rax
+
+        movq        [rdi],          mm0
+        movq        [rdi+8],        mm3
+
+        movq        [rdi+rcx],      mm1
+        movq        [rdi+rcx+8],    mm4
+
+        movq        [rdi+rcx*2],    mm2
+        movq        [rdi+rcx*2+8],  mm5
+
+        lea         rdi,            [rdi+rcx*2]
+        add         rdi,            rcx
+
+        movq        mm0,            [rsi]
+        movq        mm3,            [rsi+8];
+
+        movq        [rdi],          mm0
+        movq        [rdi+8],        mm3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/common/x86/recon_sse2.asm b/media/libvpx/vp8/common/x86/recon_sse2.asm
new file mode 100644
index 000000000..7141f8324
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/recon_sse2.asm
@@ -0,0 +1,1115 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void copy_mem16x16_sse2(
+;    unsigned char *src,
+;    int src_stride,
+;    unsigned char *dst,
+;    int dst_stride
+;    )
+global sym(vp8_copy_mem16x16_sse2) PRIVATE
+sym(vp8_copy_mem16x16_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 4
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0) ;src;
+        movdqu      xmm0,       [rsi]
+
+        movsxd      rax,        dword ptr arg(1) ;src_stride;
+        mov         rdi,        arg(2) ;dst;
+
+        movdqu      xmm1,       [rsi+rax]
+        movdqu      xmm2,       [rsi+rax*2]
+
+        movsxd      rcx,        dword ptr arg(3) ;dst_stride
+        lea         rsi,        [rsi+rax*2]
+
+        movdqa      [rdi],      xmm0
+        add         rsi,        rax
+
+        movdqa      [rdi+rcx],  xmm1
+        movdqa      [rdi+rcx*2],xmm2
+
+        lea         rdi,        [rdi+rcx*2]
+        movdqu      xmm3,       [rsi]
+
+        add         rdi,        rcx
+        movdqu      xmm4,       [rsi+rax]
+
+        movdqu      xmm5,       [rsi+rax*2]
+        lea         rsi,        [rsi+rax*2]
+
+        movdqa      [rdi],  xmm3
+        add         rsi,        rax
+
+        movdqa      [rdi+rcx],  xmm4
+        movdqa      [rdi+rcx*2],xmm5
+
+        lea         rdi,        [rdi+rcx*2]
+        movdqu      xmm0,       [rsi]
+
+        add         rdi,        rcx
+        movdqu      xmm1,       [rsi+rax]
+
+        movdqu      xmm2,       [rsi+rax*2]
+        lea         rsi,        [rsi+rax*2]
+
+        movdqa      [rdi],      xmm0
+        add         rsi,        rax
+
+        movdqa      [rdi+rcx],  xmm1
+
+        movdqa      [rdi+rcx*2],    xmm2
+        movdqu      xmm3,       [rsi]
+
+        movdqu      xmm4,       [rsi+rax]
+        lea         rdi,        [rdi+rcx*2]
+
+        add         rdi,        rcx
+        movdqu      xmm5,       [rsi+rax*2]
+
+        lea         rsi,        [rsi+rax*2]
+        movdqa      [rdi],  xmm3
+
+        add         rsi,        rax
+        movdqa      [rdi+rcx],  xmm4
+
+        movdqa      [rdi+rcx*2],xmm5
+        movdqu      xmm0,       [rsi]
+
+        lea         rdi,        [rdi+rcx*2]
+        movdqu      xmm1,       [rsi+rax]
+
+        add         rdi,        rcx
+        movdqu      xmm2,       [rsi+rax*2]
+
+        lea         rsi,        [rsi+rax*2]
+        movdqa      [rdi],      xmm0
+
+        movdqa      [rdi+rcx],  xmm1
+        movdqa      [rdi+rcx*2],xmm2
+
+        movdqu      xmm3,       [rsi+rax]
+        lea         rdi,        [rdi+rcx*2]
+
+        movdqa      [rdi+rcx],  xmm3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_intra_pred_uv_dc_mmx2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+global sym(vp8_intra_pred_uv_dc_mmx2) PRIVATE
+sym(vp8_intra_pred_uv_dc_mmx2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ; from top
+    mov         rdi,        arg(2) ;above;
+    mov         rsi,        arg(3) ;left;
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+    pxor        mm0,        mm0
+    movq        mm1,        [rdi]
+    lea         rdi,        [rax*3]
+    psadbw      mm1,        mm0
+    ; from left
+    movzx       ecx,        byte [rsi]
+    movzx       edx,        byte [rsi+rax*1]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+
+    movzx       edx,        byte [rsi+rdi]
+    lea         rsi,        [rsi+rax*4]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+
+    ; add up
+    pextrw      edx,        mm1, 0x0
+    lea         edx,        [edx+ecx+8]
+    sar         edx,        4
+    movd        mm1,        edx
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+    pshufw      mm1,        mm1, 0x0
+    mov         rdi,        arg(0) ;dst;
+    packuswb    mm1,        mm1
+
+    ; write out
+    lea         rax,        [rcx*3]
+    lea         rdx,        [rdi+rcx*4]
+
+    movq [rdi      ],       mm1
+    movq [rdi+rcx  ],       mm1
+    movq [rdi+rcx*2],       mm1
+    movq [rdi+rax  ],       mm1
+    movq [rdx      ],       mm1
+    movq [rdx+rcx  ],       mm1
+    movq [rdx+rcx*2],       mm1
+    movq [rdx+rax  ],       mm1
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_uv_dctop_mmx2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+global sym(vp8_intra_pred_uv_dctop_mmx2) PRIVATE
+sym(vp8_intra_pred_uv_dctop_mmx2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;arg(3), arg(4) not used
+
+    ; from top
+    mov         rsi,        arg(2) ;above;
+    pxor        mm0,        mm0
+    movq        mm1,        [rsi]
+    psadbw      mm1,        mm0
+
+    ; add up
+    paddw       mm1,        [GLOBAL(dc_4)]
+    psraw       mm1,        3
+    pshufw      mm1,        mm1, 0x0
+    packuswb    mm1,        mm1
+
+    ; write out
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+    lea         rax,        [rcx*3]
+
+    movq [rdi      ],       mm1
+    movq [rdi+rcx  ],       mm1
+    movq [rdi+rcx*2],       mm1
+    movq [rdi+rax  ],       mm1
+    lea         rdi,        [rdi+rcx*4]
+    movq [rdi      ],       mm1
+    movq [rdi+rcx  ],       mm1
+    movq [rdi+rcx*2],       mm1
+    movq [rdi+rax  ],       mm1
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_uv_dcleft_mmx2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+global sym(vp8_intra_pred_uv_dcleft_mmx2) PRIVATE
+sym(vp8_intra_pred_uv_dcleft_mmx2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;arg(2) not used
+
+    ; from left
+    mov         rsi,        arg(3) ;left;
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+    lea         rdi,        [rax*3]
+    movzx       ecx,        byte [rsi]
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    lea         edx,        [ecx+edx+4]
+
+    ; add up
+    shr         edx,        3
+    movd        mm1,        edx
+    pshufw      mm1,        mm1, 0x0
+    packuswb    mm1,        mm1
+
+    ; write out
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+    lea         rax,        [rcx*3]
+
+    movq [rdi      ],       mm1
+    movq [rdi+rcx  ],       mm1
+    movq [rdi+rcx*2],       mm1
+    movq [rdi+rax  ],       mm1
+    lea         rdi,        [rdi+rcx*4]
+    movq [rdi      ],       mm1
+    movq [rdi+rcx  ],       mm1
+    movq [rdi+rcx*2],       mm1
+    movq [rdi+rax  ],       mm1
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_uv_dc128_mmx(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+global sym(vp8_intra_pred_uv_dc128_mmx) PRIVATE
+sym(vp8_intra_pred_uv_dc128_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    ; end prolog
+
+    ;arg(2), arg(3), arg(4) not used
+
+    ; write out
+    movq        mm1,        [GLOBAL(dc_128)]
+    mov         rax,        arg(0) ;dst;
+    movsxd      rdx,        dword ptr arg(1) ;dst_stride
+    lea         rcx,        [rdx*3]
+
+    movq [rax      ],       mm1
+    movq [rax+rdx  ],       mm1
+    movq [rax+rdx*2],       mm1
+    movq [rax+rcx  ],       mm1
+    lea         rax,        [rax+rdx*4]
+    movq [rax      ],       mm1
+    movq [rax+rdx  ],       mm1
+    movq [rax+rdx*2],       mm1
+    movq [rax+rcx  ],       mm1
+
+    ; begin epilog
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_uv_tm_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+%macro vp8_intra_pred_uv_tm 1
+global sym(vp8_intra_pred_uv_tm_%1) PRIVATE
+sym(vp8_intra_pred_uv_tm_%1):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    push        rbx
+    ; end prolog
+
+    ; read top row
+    mov         edx,        4
+    mov         rsi,        arg(2) ;above
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+    pxor        xmm0,       xmm0
+%ifidn %1, ssse3
+    movdqa      xmm2,       [GLOBAL(dc_1024)]
+%endif
+    movq        xmm1,       [rsi]
+    punpcklbw   xmm1,       xmm0
+
+    ; set up left ptrs ans subtract topleft
+    movd        xmm3,       [rsi-1]
+    mov         rsi,        arg(3) ;left;
+%ifidn %1, sse2
+    punpcklbw   xmm3,       xmm0
+    pshuflw     xmm3,       xmm3, 0x0
+    punpcklqdq  xmm3,       xmm3
+%else
+    pshufb      xmm3,       xmm2
+%endif
+    psubw       xmm1,       xmm3
+
+    ; set up dest ptrs
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+
+.vp8_intra_pred_uv_tm_%1_loop:
+    mov         bl,         [rsi]
+    movd        xmm3,       ebx
+
+    mov         bl,         [rsi+rax]
+    movd        xmm5,       ebx
+%ifidn %1, sse2
+    punpcklbw   xmm3,       xmm0
+    punpcklbw   xmm5,       xmm0
+    pshuflw     xmm3,       xmm3, 0x0
+    pshuflw     xmm5,       xmm5, 0x0
+    punpcklqdq  xmm3,       xmm3
+    punpcklqdq  xmm5,       xmm5
+%else
+    pshufb      xmm3,       xmm2
+    pshufb      xmm5,       xmm2
+%endif
+    paddw       xmm3,       xmm1
+    paddw       xmm5,       xmm1
+    packuswb    xmm3,       xmm5
+    movq  [rdi    ],        xmm3
+    movhps[rdi+rcx],        xmm3
+    lea         rsi,        [rsi+rax*2]
+    lea         rdi,        [rdi+rcx*2]
+    dec         edx
+    jnz .vp8_intra_pred_uv_tm_%1_loop
+
+    ; begin epilog
+    pop         rbx
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%endmacro
+
+vp8_intra_pred_uv_tm sse2
+vp8_intra_pred_uv_tm ssse3
+
+;void vp8_intra_pred_uv_ve_mmx(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+global sym(vp8_intra_pred_uv_ve_mmx) PRIVATE
+sym(vp8_intra_pred_uv_ve_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    ; end prolog
+
+    ; arg(3), arg(4) not used
+
+    ; read from top
+    mov         rax,        arg(2) ;src;
+
+    movq        mm1,        [rax]
+
+    ; write out
+    mov         rax,        arg(0) ;dst;
+    movsxd      rdx,        dword ptr arg(1) ;dst_stride
+    lea         rcx,        [rdx*3]
+
+    movq [rax      ],       mm1
+    movq [rax+rdx  ],       mm1
+    movq [rax+rdx*2],       mm1
+    movq [rax+rcx  ],       mm1
+    lea         rax,        [rax+rdx*4]
+    movq [rax      ],       mm1
+    movq [rax+rdx  ],       mm1
+    movq [rax+rdx*2],       mm1
+    movq [rax+rcx  ],       mm1
+
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_uv_ho_mmx2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+%macro vp8_intra_pred_uv_ho 1
+global sym(vp8_intra_pred_uv_ho_%1) PRIVATE
+sym(vp8_intra_pred_uv_ho_%1):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    push        rdi
+    push        rbx
+%ifidn %1, ssse3
+    GET_GOT     rbx
+%endif
+    ; end prolog
+
+    ;arg(2) not used
+
+    ; read from left and write out
+%ifidn %1, mmx2
+    mov         edx,        4
+%endif
+    mov         rsi,        arg(3) ;left
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+%ifidn %1, ssse3
+    lea         rdx,        [rcx*3]
+    movdqa      xmm2,       [GLOBAL(dc_00001111)]
+%endif
+
+%ifidn %1, mmx2
+.vp8_intra_pred_uv_ho_%1_loop:
+    mov         bl,         [rsi]
+    movd        mm0,        ebx
+
+    mov         bl,         [rsi+rax]
+    movd        mm1,        ebx
+
+    punpcklbw   mm0,        mm0
+    punpcklbw   mm1,        mm1
+    pshufw      mm0,        mm0, 0x0
+    pshufw      mm1,        mm1, 0x0
+    movq  [rdi    ],        mm0
+    movq  [rdi+rcx],        mm1
+    lea         rsi,        [rsi+rax*2]
+    lea         rdi,        [rdi+rcx*2]
+    dec         edx
+    jnz .vp8_intra_pred_uv_ho_%1_loop
+%else
+    mov         bl,         [rsi]
+    movd        xmm0,       ebx
+
+    mov         bl,         [rsi+rax]
+    movd        xmm3,       ebx
+
+    mov         bl,         [rsi+rax*2]
+    movd        xmm1,       ebx
+
+    lea         rbx,        [rax*3]
+    mov         bl,         [rsi+rbx]
+    movd        xmm4,       ebx
+
+    punpcklbw   xmm0,       xmm3
+    punpcklbw   xmm1,       xmm4
+    pshufb      xmm0,       xmm2
+    pshufb      xmm1,       xmm2
+    movq   [rdi    ],       xmm0
+    movhps [rdi+rcx],       xmm0
+    movq [rdi+rcx*2],       xmm1
+    movhps [rdi+rdx],       xmm1
+    lea         rsi,        [rsi+rax*4]
+    lea         rdi,        [rdi+rcx*4]
+
+    mov         bl,         [rsi]
+    movd        xmm0,       ebx
+
+    mov         bl,         [rsi+rax]
+    movd        xmm3,       ebx
+
+    mov         bl,         [rsi+rax*2]
+    movd        xmm1,       ebx
+
+    lea         rbx,        [rax*3]
+    mov         bl,         [rsi+rbx]
+    movd        xmm4,       ebx
+
+    punpcklbw   xmm0,       xmm3
+    punpcklbw   xmm1,       xmm4
+    pshufb      xmm0,       xmm2
+    pshufb      xmm1,       xmm2
+    movq   [rdi    ],       xmm0
+    movhps [rdi+rcx],       xmm0
+    movq [rdi+rcx*2],       xmm1
+    movhps [rdi+rdx],       xmm1
+%endif
+
+    ; begin epilog
+%ifidn %1, ssse3
+    RESTORE_GOT
+%endif
+    pop         rbx
+    pop         rdi
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%endmacro
+
+vp8_intra_pred_uv_ho mmx2
+vp8_intra_pred_uv_ho ssse3
+
+;void vp8_intra_pred_y_dc_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+global sym(vp8_intra_pred_y_dc_sse2) PRIVATE
+sym(vp8_intra_pred_y_dc_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ; from top
+    mov         rdi,        arg(2) ;above
+    mov         rsi,        arg(3) ;left
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+
+    pxor        xmm0,       xmm0
+    movdqa      xmm1,       [rdi]
+    psadbw      xmm1,       xmm0
+    movq        xmm2,       xmm1
+    punpckhqdq  xmm1,       xmm1
+    paddw       xmm1,       xmm2
+
+    ; from left
+    lea         rdi,        [rax*3]
+
+    movzx       ecx,        byte [rsi]
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+
+    ; add up
+    pextrw      edx,        xmm1, 0x0
+    lea         edx,        [edx+ecx+16]
+    sar         edx,        5
+    movd        xmm1,       edx
+    ; FIXME use pshufb for ssse3 version
+    pshuflw     xmm1,       xmm1, 0x0
+    punpcklqdq  xmm1,       xmm1
+    packuswb    xmm1,       xmm1
+
+    ; write out
+    mov         rsi,        2
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+    lea         rax,        [rcx*3]
+
+.label
+    movdqa [rdi      ],     xmm1
+    movdqa [rdi+rcx  ],     xmm1
+    movdqa [rdi+rcx*2],     xmm1
+    movdqa [rdi+rax  ],     xmm1
+    lea         rdi,        [rdi+rcx*4]
+    movdqa [rdi      ],     xmm1
+    movdqa [rdi+rcx  ],     xmm1
+    movdqa [rdi+rcx*2],     xmm1
+    movdqa [rdi+rax  ],     xmm1
+    lea         rdi,        [rdi+rcx*4]
+    dec         rsi
+    jnz .label
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_y_dctop_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+global sym(vp8_intra_pred_y_dctop_sse2) PRIVATE
+sym(vp8_intra_pred_y_dctop_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    GET_GOT     rbx
+    ; end prolog
+
+    ;arg(3), arg(4) not used
+
+    ; from top
+    mov         rcx,        arg(2) ;above;
+    pxor        xmm0,       xmm0
+    movdqa      xmm1,       [rcx]
+    psadbw      xmm1,       xmm0
+    movdqa      xmm2,       xmm1
+    punpckhqdq  xmm1,       xmm1
+    paddw       xmm1,       xmm2
+
+    ; add up
+    paddw       xmm1,       [GLOBAL(dc_8)]
+    psraw       xmm1,       4
+    ; FIXME use pshufb for ssse3 version
+    pshuflw     xmm1,       xmm1, 0x0
+    punpcklqdq  xmm1,       xmm1
+    packuswb    xmm1,       xmm1
+
+    ; write out
+    mov         rsi,        2
+    mov         rdx,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+    lea         rax,        [rcx*3]
+
+.label
+    movdqa [rdx      ],     xmm1
+    movdqa [rdx+rcx  ],     xmm1
+    movdqa [rdx+rcx*2],     xmm1
+    movdqa [rdx+rax  ],     xmm1
+    lea         rdx,        [rdx+rcx*4]
+    movdqa [rdx      ],     xmm1
+    movdqa [rdx+rcx  ],     xmm1
+    movdqa [rdx+rcx*2],     xmm1
+    movdqa [rdx+rax  ],     xmm1
+    lea         rdx,        [rdx+rcx*4]
+    dec         rsi
+    jnz .label
+
+    ; begin epilog
+    RESTORE_GOT
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_y_dcleft_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+global sym(vp8_intra_pred_y_dcleft_sse2) PRIVATE
+sym(vp8_intra_pred_y_dcleft_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;arg(2) not used
+
+    ; from left
+    mov         rsi,        arg(3) ;left;
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+
+    lea         rdi,        [rax*3]
+    movzx       ecx,        byte [rsi]
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    add         ecx,        edx
+    lea         rsi,        [rsi+rax*4]
+    movzx       edx,        byte [rsi]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rax*2]
+    add         ecx,        edx
+    movzx       edx,        byte [rsi+rdi]
+    lea         edx,        [ecx+edx+8]
+
+    ; add up
+    shr         edx,        4
+    movd        xmm1,       edx
+    ; FIXME use pshufb for ssse3 version
+    pshuflw     xmm1,       xmm1, 0x0
+    punpcklqdq  xmm1,       xmm1
+    packuswb    xmm1,       xmm1
+
+    ; write out
+    mov         rsi,        2
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+    lea         rax,        [rcx*3]
+
+.label
+    movdqa [rdi      ],     xmm1
+    movdqa [rdi+rcx  ],     xmm1
+    movdqa [rdi+rcx*2],     xmm1
+    movdqa [rdi+rax  ],     xmm1
+    lea         rdi,        [rdi+rcx*4]
+    movdqa [rdi      ],     xmm1
+    movdqa [rdi+rcx  ],     xmm1
+    movdqa [rdi+rcx*2],     xmm1
+    movdqa [rdi+rax  ],     xmm1
+    lea         rdi,        [rdi+rcx*4]
+    dec         rsi
+    jnz .label
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_y_dc128_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+global sym(vp8_intra_pred_y_dc128_sse2) PRIVATE
+sym(vp8_intra_pred_y_dc128_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    GET_GOT     rbx
+    ; end prolog
+
+    ;arg(2), arg(3), arg(4) not used
+
+    ; write out
+    mov         rsi,        2
+    movdqa      xmm1,       [GLOBAL(dc_128)]
+    mov         rax,        arg(0) ;dst;
+    movsxd      rdx,        dword ptr arg(1) ;dst_stride
+    lea         rcx,        [rdx*3]
+
+.label
+    movdqa [rax      ],     xmm1
+    movdqa [rax+rdx  ],     xmm1
+    movdqa [rax+rdx*2],     xmm1
+    movdqa [rax+rcx  ],     xmm1
+    lea         rax,        [rax+rdx*4]
+    movdqa [rax      ],     xmm1
+    movdqa [rax+rdx  ],     xmm1
+    movdqa [rax+rdx*2],     xmm1
+    movdqa [rax+rcx  ],     xmm1
+    lea         rax,        [rax+rdx*4]
+    dec         rsi
+    jnz .label
+
+    ; begin epilog
+    RESTORE_GOT
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_y_tm_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+%macro vp8_intra_pred_y_tm 1
+global sym(vp8_intra_pred_y_tm_%1) PRIVATE
+sym(vp8_intra_pred_y_tm_%1):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    SAVE_XMM 7
+    push        rsi
+    push        rdi
+    push        rbx
+    GET_GOT     rbx
+    ; end prolog
+
+    ; read top row
+    mov         edx,        8
+    mov         rsi,        arg(2) ;above
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+    pxor        xmm0,       xmm0
+%ifidn %1, ssse3
+    movdqa      xmm3,       [GLOBAL(dc_1024)]
+%endif
+    movdqa      xmm1,       [rsi]
+    movdqa      xmm2,       xmm1
+    punpcklbw   xmm1,       xmm0
+    punpckhbw   xmm2,       xmm0
+
+    ; set up left ptrs ans subtract topleft
+    movd        xmm4,       [rsi-1]
+    mov         rsi,        arg(3) ;left
+%ifidn %1, sse2
+    punpcklbw   xmm4,       xmm0
+    pshuflw     xmm4,       xmm4, 0x0
+    punpcklqdq  xmm4,       xmm4
+%else
+    pshufb      xmm4,       xmm3
+%endif
+    psubw       xmm1,       xmm4
+    psubw       xmm2,       xmm4
+
+    ; set up dest ptrs
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+vp8_intra_pred_y_tm_%1_loop:
+    mov         bl,         [rsi]
+    movd        xmm4,       ebx
+
+    mov         bl,         [rsi+rax]
+    movd        xmm5,       ebx
+%ifidn %1, sse2
+    punpcklbw   xmm4,       xmm0
+    punpcklbw   xmm5,       xmm0
+    pshuflw     xmm4,       xmm4, 0x0
+    pshuflw     xmm5,       xmm5, 0x0
+    punpcklqdq  xmm4,       xmm4
+    punpcklqdq  xmm5,       xmm5
+%else
+    pshufb      xmm4,       xmm3
+    pshufb      xmm5,       xmm3
+%endif
+    movdqa      xmm6,       xmm4
+    movdqa      xmm7,       xmm5
+    paddw       xmm4,       xmm1
+    paddw       xmm6,       xmm2
+    paddw       xmm5,       xmm1
+    paddw       xmm7,       xmm2
+    packuswb    xmm4,       xmm6
+    packuswb    xmm5,       xmm7
+    movdqa [rdi    ],       xmm4
+    movdqa [rdi+rcx],       xmm5
+    lea         rsi,        [rsi+rax*2]
+    lea         rdi,        [rdi+rcx*2]
+    dec         edx
+    jnz vp8_intra_pred_y_tm_%1_loop
+
+    ; begin epilog
+    RESTORE_GOT
+    pop         rbx
+    pop         rdi
+    pop         rsi
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+%endmacro
+
+vp8_intra_pred_y_tm sse2
+vp8_intra_pred_y_tm ssse3
+
+;void vp8_intra_pred_y_ve_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride
+;    )
+global sym(vp8_intra_pred_y_ve_sse2) PRIVATE
+sym(vp8_intra_pred_y_ve_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    ; end prolog
+
+    ;arg(3), arg(4) not used
+
+    mov         rax,        arg(2) ;above;
+    mov         rsi,        2
+    movsxd      rdx,        dword ptr arg(1) ;dst_stride
+
+    ; read from top
+    movdqa      xmm1,       [rax]
+
+    ; write out
+    mov         rax,        arg(0) ;dst;
+    lea         rcx,        [rdx*3]
+
+.label
+    movdqa [rax      ],     xmm1
+    movdqa [rax+rdx  ],     xmm1
+    movdqa [rax+rdx*2],     xmm1
+    movdqa [rax+rcx  ],     xmm1
+    lea         rax,        [rax+rdx*4]
+    movdqa [rax      ],     xmm1
+    movdqa [rax+rdx  ],     xmm1
+    movdqa [rax+rdx*2],     xmm1
+    movdqa [rax+rcx  ],     xmm1
+    lea         rax,        [rax+rdx*4]
+    dec         rsi
+    jnz .label
+
+    ; begin epilog
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_intra_pred_y_ho_sse2(
+;    unsigned char *dst,
+;    int dst_stride
+;    unsigned char *above,
+;    unsigned char *left,
+;    int left_stride,
+;    )
+global sym(vp8_intra_pred_y_ho_sse2) PRIVATE
+sym(vp8_intra_pred_y_ho_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push        rsi
+    push        rdi
+    push        rbx
+    ; end prolog
+
+    ;arg(2) not used
+
+    ; read from left and write out
+    mov         edx,        8
+    mov         rsi,        arg(3) ;left;
+    movsxd      rax,        dword ptr arg(4) ;left_stride;
+    mov         rdi,        arg(0) ;dst;
+    movsxd      rcx,        dword ptr arg(1) ;dst_stride
+
+vp8_intra_pred_y_ho_sse2_loop:
+    mov         bl,         [rsi]
+    movd        xmm0,       ebx
+    mov         bl,         [rsi+rax]
+    movd        xmm1,       ebx
+
+    ; FIXME use pshufb for ssse3 version
+    punpcklbw   xmm0,       xmm0
+    punpcklbw   xmm1,       xmm1
+    pshuflw     xmm0,       xmm0, 0x0
+    pshuflw     xmm1,       xmm1, 0x0
+    punpcklqdq  xmm0,       xmm0
+    punpcklqdq  xmm1,       xmm1
+    movdqa [rdi    ],       xmm0
+    movdqa [rdi+rcx],       xmm1
+    lea         rsi,        [rsi+rax*2]
+    lea         rdi,        [rdi+rcx*2]
+    dec         edx
+    jnz vp8_intra_pred_y_ho_sse2_loop
+
+    ; begin epilog
+    pop         rbx
+    pop         rdi
+    pop         rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+dc_128:
+    times 16 db 128
+dc_4:
+    times 4 dw 4
+align 16
+dc_8:
+    times 8 dw 8
+align 16
+dc_1024:
+    times 8 dw 0x400
+align 16
+dc_00001111:
+    times 8 db 0
+    times 8 db 1
diff --git a/media/libvpx/vp8/common/x86/recon_wrapper_sse2.c b/media/libvpx/vp8/common/x86/recon_wrapper_sse2.c
new file mode 100644
index 000000000..65f4251a9
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/recon_wrapper_sse2.c
@@ -0,0 +1,186 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/blockd.h"
+
+#define build_intra_predictors_mbuv_prototype(sym) \
+    void sym(unsigned char *dst, int dst_stride, \
+             const unsigned char *above, \
+             const unsigned char *left, int left_stride)
+typedef build_intra_predictors_mbuv_prototype((*build_intra_predictors_mbuv_fn_t));
+
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_dc_mmx2);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_dctop_mmx2);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_dcleft_mmx2);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_dc128_mmx);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_ho_mmx2);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_ho_ssse3);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_ve_mmx);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_tm_sse2);
+extern build_intra_predictors_mbuv_prototype(vp8_intra_pred_uv_tm_ssse3);
+
+static void vp8_build_intra_predictors_mbuv_x86(MACROBLOCKD *x,
+                                                unsigned char * uabove_row,
+                                                unsigned char * vabove_row,
+                                                unsigned char *dst_u,
+                                                unsigned char *dst_v,
+                                                int dst_stride,
+                                                unsigned char * uleft,
+                                                unsigned char * vleft,
+                                                int left_stride,
+                                                build_intra_predictors_mbuv_fn_t tm_func,
+                                                build_intra_predictors_mbuv_fn_t ho_func)
+{
+    int mode = x->mode_info_context->mbmi.uv_mode;
+    build_intra_predictors_mbuv_fn_t fn;
+
+    switch (mode) {
+        case  V_PRED: fn = vp8_intra_pred_uv_ve_mmx; break;
+        case  H_PRED: fn = ho_func; break;
+        case TM_PRED: fn = tm_func; break;
+        case DC_PRED:
+            if (x->up_available) {
+                if (x->left_available) {
+                    fn = vp8_intra_pred_uv_dc_mmx2; break;
+                } else {
+                    fn = vp8_intra_pred_uv_dctop_mmx2; break;
+                }
+            } else if (x->left_available) {
+                fn = vp8_intra_pred_uv_dcleft_mmx2; break;
+            } else {
+                fn = vp8_intra_pred_uv_dc128_mmx; break;
+            }
+            break;
+        default: return;
+    }
+
+    fn(dst_u, dst_stride, uabove_row, uleft, left_stride);
+    fn(dst_v, dst_stride, vabove_row, vleft, left_stride);
+}
+
+void vp8_build_intra_predictors_mbuv_s_sse2(MACROBLOCKD *x,
+                                            unsigned char * uabove_row,
+                                            unsigned char * vabove_row,
+                                            unsigned char * uleft,
+                                            unsigned char * vleft,
+                                            int left_stride,
+                                            unsigned char * upred_ptr,
+                                            unsigned char * vpred_ptr,
+                                            int pred_stride)
+{
+    vp8_build_intra_predictors_mbuv_x86(x,
+                                        uabove_row, vabove_row,
+                                        upred_ptr,
+                                        vpred_ptr, pred_stride,
+                                        uleft,
+                                        vleft,
+                                        left_stride,
+                                        vp8_intra_pred_uv_tm_sse2,
+                                        vp8_intra_pred_uv_ho_mmx2);
+}
+
+void vp8_build_intra_predictors_mbuv_s_ssse3(MACROBLOCKD *x,
+                                             unsigned char * uabove_row,
+                                             unsigned char * vabove_row,
+                                             unsigned char * uleft,
+                                             unsigned char * vleft,
+                                             int left_stride,
+                                             unsigned char * upred_ptr,
+                                             unsigned char * vpred_ptr,
+                                             int pred_stride)
+{
+    vp8_build_intra_predictors_mbuv_x86(x,
+                                        uabove_row, vabove_row,
+                                        upred_ptr,
+                                        vpred_ptr, pred_stride,
+                                        uleft,
+                                        vleft,
+                                        left_stride,
+                                        vp8_intra_pred_uv_tm_ssse3,
+                                        vp8_intra_pred_uv_ho_ssse3);
+}
+
+#define build_intra_predictors_mby_prototype(sym) \
+    void sym(unsigned char *dst, int dst_stride, \
+             const unsigned char *above, \
+             const unsigned char *left, int left_stride)
+typedef build_intra_predictors_mby_prototype((*build_intra_predictors_mby_fn_t));
+
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_dc_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_dctop_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_dcleft_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_dc128_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_ho_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_ve_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_tm_sse2);
+extern build_intra_predictors_mby_prototype(vp8_intra_pred_y_tm_ssse3);
+
+static void vp8_build_intra_predictors_mby_x86(MACROBLOCKD *x,
+                                               unsigned char * yabove_row,
+                                               unsigned char *dst_y,
+                                               int dst_stride,
+                                               unsigned char * yleft,
+                                               int left_stride,
+                                               build_intra_predictors_mby_fn_t tm_func)
+{
+    int mode = x->mode_info_context->mbmi.mode;
+    build_intra_predictors_mbuv_fn_t fn;
+
+    switch (mode) {
+        case  V_PRED: fn = vp8_intra_pred_y_ve_sse2; break;
+        case  H_PRED: fn = vp8_intra_pred_y_ho_sse2; break;
+        case TM_PRED: fn = tm_func; break;
+        case DC_PRED:
+            if (x->up_available) {
+                if (x->left_available) {
+                    fn = vp8_intra_pred_y_dc_sse2; break;
+                } else {
+                    fn = vp8_intra_pred_y_dctop_sse2; break;
+                }
+            } else if (x->left_available) {
+                fn = vp8_intra_pred_y_dcleft_sse2; break;
+            } else {
+                fn = vp8_intra_pred_y_dc128_sse2; break;
+            }
+            break;
+        default: return;
+    }
+
+    fn(dst_y, dst_stride, yabove_row, yleft, left_stride);
+    return;
+}
+
+void vp8_build_intra_predictors_mby_s_sse2(MACROBLOCKD *x,
+                                           unsigned char * yabove_row,
+                                           unsigned char * yleft,
+                                           int left_stride,
+                                           unsigned char * ypred_ptr,
+                                           int y_stride)
+{
+    vp8_build_intra_predictors_mby_x86(x, yabove_row, ypred_ptr,
+                                       y_stride, yleft, left_stride,
+                                       vp8_intra_pred_y_tm_sse2);
+}
+
+void vp8_build_intra_predictors_mby_s_ssse3(MACROBLOCKD *x,
+                                            unsigned char * yabove_row,
+                                            unsigned char * yleft,
+                                            int left_stride,
+                                            unsigned char * ypred_ptr,
+                                            int y_stride)
+{
+    vp8_build_intra_predictors_mby_x86(x, yabove_row, ypred_ptr,
+                                     y_stride, yleft, left_stride,
+                                       vp8_intra_pred_y_tm_ssse3);
+
+}
diff --git a/media/libvpx/vp8/common/x86/subpixel_mmx.asm b/media/libvpx/vp8/common/x86/subpixel_mmx.asm
new file mode 100644
index 000000000..47dd45229
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/subpixel_mmx.asm
@@ -0,0 +1,702 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+extern sym(vp8_bilinear_filters_x86_8)
+
+
+%define BLOCK_HEIGHT_WIDTH 4
+%define vp8_filter_weight 128
+%define VP8_FILTER_SHIFT  7
+
+
+;void vp8_filter_block1d_h6_mmx
+;(
+;    unsigned char   *src_ptr,
+;    unsigned short  *output_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned int    pixel_step,
+;    unsigned int    output_height,
+;    unsigned int    output_width,
+;    short           * vp8_filter
+;)
+global sym(vp8_filter_block1d_h6_mmx) PRIVATE
+sym(vp8_filter_block1d_h6_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rdx,    arg(6) ;vp8_filter
+
+        movq        mm1,    [rdx + 16]             ; do both the negative taps first!!!
+        movq        mm2,    [rdx + 32]         ;
+        movq        mm6,    [rdx + 48]        ;
+        movq        mm7,    [rdx + 64]        ;
+
+        mov         rdi,    arg(1) ;output_ptr
+        mov         rsi,    arg(0) ;src_ptr
+        movsxd      rcx,    dword ptr arg(4) ;output_height
+        movsxd      rax,    dword ptr arg(5) ;output_width      ; destination pitch?
+        pxor        mm0,    mm0              ; mm0 = 00000000
+
+.nextrow:
+        movq        mm3,    [rsi-2]          ; mm3 = p-2..p5
+        movq        mm4,    mm3              ; mm4 = p-2..p5
+        psrlq       mm3,    8                ; mm3 = p-1..p5
+        punpcklbw   mm3,    mm0              ; mm3 = p-1..p2
+        pmullw      mm3,    mm1              ; mm3 *= kernel 1 modifiers.
+
+        movq        mm5,    mm4              ; mm5 = p-2..p5
+        punpckhbw   mm4,    mm0              ; mm5 = p2..p5
+        pmullw      mm4,    mm7              ; mm5 *= kernel 4 modifiers
+        paddsw      mm3,    mm4              ; mm3 += mm5
+
+        movq        mm4,    mm5              ; mm4 = p-2..p5;
+        psrlq       mm5,    16               ; mm5 = p0..p5;
+        punpcklbw   mm5,    mm0              ; mm5 = p0..p3
+        pmullw      mm5,    mm2              ; mm5 *= kernel 2 modifiers
+        paddsw      mm3,    mm5              ; mm3 += mm5
+
+        movq        mm5,    mm4              ; mm5 = p-2..p5
+        psrlq       mm4,    24               ; mm4 = p1..p5
+        punpcklbw   mm4,    mm0              ; mm4 = p1..p4
+        pmullw      mm4,    mm6              ; mm5 *= kernel 3 modifiers
+        paddsw      mm3,    mm4              ; mm3 += mm5
+
+        ; do outer positive taps
+        movd        mm4,    [rsi+3]
+        punpcklbw   mm4,    mm0              ; mm5 = p3..p6
+        pmullw      mm4,    [rdx+80]         ; mm5 *= kernel 0 modifiers
+        paddsw      mm3,    mm4              ; mm3 += mm5
+
+        punpcklbw   mm5,    mm0              ; mm5 = p-2..p1
+        pmullw      mm5,    [rdx]            ; mm5 *= kernel 5 modifiers
+        paddsw      mm3,    mm5              ; mm3 += mm5
+
+        paddsw      mm3,    [GLOBAL(rd)]              ; mm3 += round value
+        psraw       mm3,    VP8_FILTER_SHIFT     ; mm3 /= 128
+        packuswb    mm3,    mm0              ; pack and unpack to saturate
+        punpcklbw   mm3,    mm0              ;
+
+        movq        [rdi],  mm3              ; store the results in the destination
+
+%if ABI_IS_32BIT
+        add         rsi,    dword ptr arg(2) ;src_pixels_per_line ; next line
+        add         rdi,    rax;
+%else
+        movsxd      r8,     dword ptr arg(2) ;src_pixels_per_line
+        add         rdi,    rax;
+
+        add         rsi,    r8               ; next line
+%endif
+
+        dec         rcx                      ; decrement count
+        jnz         .nextrow                 ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1dc_v6_mmx
+;(
+;   short *src_ptr,
+;   unsigned char *output_ptr,
+;    int output_pitch,
+;   unsigned int pixels_per_line,
+;   unsigned int pixel_step,
+;   unsigned int output_height,
+;   unsigned int output_width,
+;   short * vp8_filter
+;)
+global sym(vp8_filter_block1dc_v6_mmx) PRIVATE
+sym(vp8_filter_block1dc_v6_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        movq      mm5, [GLOBAL(rd)]
+        push        rbx
+        mov         rbx, arg(7) ;vp8_filter
+        movq      mm1, [rbx + 16]             ; do both the negative taps first!!!
+        movq      mm2, [rbx + 32]         ;
+        movq      mm6, [rbx + 48]        ;
+        movq      mm7, [rbx + 64]        ;
+
+        movsxd      rdx, dword ptr arg(3) ;pixels_per_line
+        mov         rdi, arg(1) ;output_ptr
+        mov         rsi, arg(0) ;src_ptr
+        sub         rsi, rdx
+        sub         rsi, rdx
+        movsxd      rcx, DWORD PTR arg(5) ;output_height
+        movsxd      rax, DWORD PTR arg(2) ;output_pitch      ; destination pitch?
+        pxor        mm0, mm0              ; mm0 = 00000000
+
+
+.nextrow_cv:
+        movq        mm3, [rsi+rdx]        ; mm3 = p0..p8  = row -1
+        pmullw      mm3, mm1              ; mm3 *= kernel 1 modifiers.
+
+
+        movq        mm4, [rsi + 4*rdx]      ; mm4 = p0..p3  = row 2
+        pmullw      mm4, mm7              ; mm4 *= kernel 4 modifiers.
+        paddsw      mm3, mm4              ; mm3 += mm4
+
+        movq        mm4, [rsi + 2*rdx]           ; mm4 = p0..p3  = row 0
+        pmullw      mm4, mm2              ; mm4 *= kernel 2 modifiers.
+        paddsw      mm3, mm4              ; mm3 += mm4
+
+        movq        mm4, [rsi]            ; mm4 = p0..p3  = row -2
+        pmullw      mm4, [rbx]            ; mm4 *= kernel 0 modifiers.
+        paddsw      mm3, mm4              ; mm3 += mm4
+
+
+        add         rsi, rdx              ; move source forward 1 line to avoid 3 * pitch
+        movq        mm4, [rsi + 2*rdx]     ; mm4 = p0..p3  = row 1
+        pmullw      mm4, mm6              ; mm4 *= kernel 3 modifiers.
+        paddsw      mm3, mm4              ; mm3 += mm4
+
+        movq        mm4, [rsi + 4*rdx]    ; mm4 = p0..p3  = row 3
+        pmullw      mm4, [rbx +80]        ; mm4 *= kernel 3 modifiers.
+        paddsw      mm3, mm4              ; mm3 += mm4
+
+
+        paddsw      mm3, mm5               ; mm3 += round value
+        psraw       mm3, VP8_FILTER_SHIFT     ; mm3 /= 128
+        packuswb    mm3, mm0              ; pack and saturate
+
+        movd        [rdi],mm3             ; store the results in the destination
+        ; the subsequent iterations repeat 3 out of 4 of these reads.  Since the
+        ; recon block should be in cache this shouldn't cost much.  Its obviously
+        ; avoidable!!!.
+        lea         rdi,  [rdi+rax] ;
+        dec         rcx                   ; decrement count
+        jnz         .nextrow_cv           ; next row
+
+        pop         rbx
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void bilinear_predict8x8_mmx
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;   unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+global sym(vp8_bilinear_predict8x8_mmx) PRIVATE
+sym(vp8_bilinear_predict8x8_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;const short *HFilter = vp8_bilinear_filters_x86_8[xoffset];
+    ;const short *VFilter = vp8_bilinear_filters_x86_8[yoffset];
+
+        movsxd      rax,        dword ptr arg(2) ;xoffset
+        mov         rdi,        arg(4) ;dst_ptr           ;
+
+        shl         rax,        5 ; offset * 32
+        lea         rcx,        [GLOBAL(sym(vp8_bilinear_filters_x86_8))]
+
+        add         rax,        rcx ; HFilter
+        mov         rsi,        arg(0) ;src_ptr              ;
+
+        movsxd      rdx,        dword ptr arg(5) ;dst_pitch
+        movq        mm1,        [rax]               ;
+
+        movq        mm2,        [rax+16]            ;
+        movsxd      rax,        dword ptr arg(3) ;yoffset
+
+        pxor        mm0,        mm0                 ;
+
+        shl         rax,        5 ; offset*32
+        add         rax,        rcx ; VFilter
+
+        lea         rcx,        [rdi+rdx*8]          ;
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line    ;
+
+
+
+        ; get the first horizontal line done       ;
+        movq        mm3,        [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movq        mm4,        mm3                 ; make a copy of current line
+
+        punpcklbw   mm3,        mm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   mm4,        mm0                 ;
+
+        pmullw      mm3,        mm1                 ;
+        pmullw      mm4,        mm1                 ;
+
+        movq        mm5,        [rsi+1]             ;
+        movq        mm6,        mm5                 ;
+
+        punpcklbw   mm5,        mm0                 ;
+        punpckhbw   mm6,        mm0                 ;
+
+        pmullw      mm5,        mm2                 ;
+        pmullw      mm6,        mm2                 ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm4,        mm6                 ;
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       mm4,        [GLOBAL(rd)]                 ;
+        psraw       mm4,        VP8_FILTER_SHIFT        ;
+
+        movq        mm7,        mm3                 ;
+        packuswb    mm7,        mm4                 ;
+
+        add         rsi,        rdx                 ; next line
+.next_row_8x8:
+        movq        mm3,        [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movq        mm4,        mm3                 ; make a copy of current line
+
+        punpcklbw   mm3,        mm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   mm4,        mm0                 ;
+
+        pmullw      mm3,        mm1                 ;
+        pmullw      mm4,        mm1                 ;
+
+        movq        mm5,        [rsi+1]             ;
+        movq        mm6,        mm5                 ;
+
+        punpcklbw   mm5,        mm0                 ;
+        punpckhbw   mm6,        mm0                 ;
+
+        pmullw      mm5,        mm2                 ;
+        pmullw      mm6,        mm2                 ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm4,        mm6                 ;
+
+        movq        mm5,        mm7                 ;
+        movq        mm6,        mm7                 ;
+
+        punpcklbw   mm5,        mm0                 ;
+        punpckhbw   mm6,        mm0
+
+        pmullw      mm5,        [rax]               ;
+        pmullw      mm6,        [rax]               ;
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       mm4,        [GLOBAL(rd)]                 ;
+        psraw       mm4,        VP8_FILTER_SHIFT        ;
+
+        movq        mm7,        mm3                 ;
+        packuswb    mm7,        mm4                 ;
+
+
+        pmullw      mm3,        [rax+16]            ;
+        pmullw      mm4,        [rax+16]            ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm4,        mm6                 ;
+
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       mm4,        [GLOBAL(rd)]                 ;
+        psraw       mm4,        VP8_FILTER_SHIFT        ;
+
+        packuswb    mm3,        mm4
+
+        movq        [rdi],      mm3                 ; store the results in the destination
+
+%if ABI_IS_32BIT
+        add         rsi,        rdx                 ; next line
+        add         rdi,        dword ptr arg(5) ;dst_pitch                   ;
+%else
+        movsxd      r8,         dword ptr arg(5) ;dst_pitch
+        add         rsi,        rdx                 ; next line
+        add         rdi,        r8                  ;dst_pitch
+%endif
+        cmp         rdi,        rcx                 ;
+        jne         .next_row_8x8
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void bilinear_predict8x4_mmx
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;    unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+global sym(vp8_bilinear_predict8x4_mmx) PRIVATE
+sym(vp8_bilinear_predict8x4_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;const short *HFilter = vp8_bilinear_filters_x86_8[xoffset];
+    ;const short *VFilter = vp8_bilinear_filters_x86_8[yoffset];
+
+        movsxd      rax,        dword ptr arg(2) ;xoffset
+        mov         rdi,        arg(4) ;dst_ptr           ;
+
+        lea         rcx,        [GLOBAL(sym(vp8_bilinear_filters_x86_8))]
+        shl         rax,        5
+
+        mov         rsi,        arg(0) ;src_ptr              ;
+        add         rax,        rcx
+
+        movsxd      rdx,        dword ptr arg(5) ;dst_pitch
+        movq        mm1,        [rax]               ;
+
+        movq        mm2,        [rax+16]            ;
+        movsxd      rax,        dword ptr arg(3) ;yoffset
+
+        pxor        mm0,        mm0                 ;
+        shl         rax,        5
+
+        add         rax,        rcx
+        lea         rcx,        [rdi+rdx*4]          ;
+
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line    ;
+
+        ; get the first horizontal line done       ;
+        movq        mm3,        [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movq        mm4,        mm3                 ; make a copy of current line
+
+        punpcklbw   mm3,        mm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   mm4,        mm0                 ;
+
+        pmullw      mm3,        mm1                 ;
+        pmullw      mm4,        mm1                 ;
+
+        movq        mm5,        [rsi+1]             ;
+        movq        mm6,        mm5                 ;
+
+        punpcklbw   mm5,        mm0                 ;
+        punpckhbw   mm6,        mm0                 ;
+
+        pmullw      mm5,        mm2                 ;
+        pmullw      mm6,        mm2                 ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm4,        mm6                 ;
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       mm4,        [GLOBAL(rd)]                 ;
+        psraw       mm4,        VP8_FILTER_SHIFT        ;
+
+        movq        mm7,        mm3                 ;
+        packuswb    mm7,        mm4                 ;
+
+        add         rsi,        rdx                 ; next line
+.next_row_8x4:
+        movq        mm3,        [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movq        mm4,        mm3                 ; make a copy of current line
+
+        punpcklbw   mm3,        mm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   mm4,        mm0                 ;
+
+        pmullw      mm3,        mm1                 ;
+        pmullw      mm4,        mm1                 ;
+
+        movq        mm5,        [rsi+1]             ;
+        movq        mm6,        mm5                 ;
+
+        punpcklbw   mm5,        mm0                 ;
+        punpckhbw   mm6,        mm0                 ;
+
+        pmullw      mm5,        mm2                 ;
+        pmullw      mm6,        mm2                 ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm4,        mm6                 ;
+
+        movq        mm5,        mm7                 ;
+        movq        mm6,        mm7                 ;
+
+        punpcklbw   mm5,        mm0                 ;
+        punpckhbw   mm6,        mm0
+
+        pmullw      mm5,        [rax]               ;
+        pmullw      mm6,        [rax]               ;
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       mm4,        [GLOBAL(rd)]                 ;
+        psraw       mm4,        VP8_FILTER_SHIFT        ;
+
+        movq        mm7,        mm3                 ;
+        packuswb    mm7,        mm4                 ;
+
+
+        pmullw      mm3,        [rax+16]            ;
+        pmullw      mm4,        [rax+16]            ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm4,        mm6                 ;
+
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       mm4,        [GLOBAL(rd)]                 ;
+        psraw       mm4,        VP8_FILTER_SHIFT        ;
+
+        packuswb    mm3,        mm4
+
+        movq        [rdi],      mm3                 ; store the results in the destination
+
+%if ABI_IS_32BIT
+        add         rsi,        rdx                 ; next line
+        add         rdi,        dword ptr arg(5) ;dst_pitch                   ;
+%else
+        movsxd      r8,         dword ptr arg(5) ;dst_pitch
+        add         rsi,        rdx                 ; next line
+        add         rdi,        r8
+%endif
+        cmp         rdi,        rcx                 ;
+        jne         .next_row_8x4
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void bilinear_predict4x4_mmx
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;    unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+global sym(vp8_bilinear_predict4x4_mmx) PRIVATE
+sym(vp8_bilinear_predict4x4_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;const short *HFilter = vp8_bilinear_filters_x86_8[xoffset];
+    ;const short *VFilter = vp8_bilinear_filters_x86_8[yoffset];
+
+        movsxd      rax,        dword ptr arg(2) ;xoffset
+        mov         rdi,        arg(4) ;dst_ptr           ;
+
+        lea         rcx,        [GLOBAL(sym(vp8_bilinear_filters_x86_8))]
+        shl         rax,        5
+
+        add         rax,        rcx ; HFilter
+        mov         rsi,        arg(0) ;src_ptr              ;
+
+        movsxd      rdx,        dword ptr arg(5) ;ldst_pitch
+        movq        mm1,        [rax]               ;
+
+        movq        mm2,        [rax+16]            ;
+        movsxd      rax,        dword ptr arg(3) ;yoffset
+
+        pxor        mm0,        mm0                 ;
+        shl         rax,        5
+
+        add         rax,        rcx
+        lea         rcx,        [rdi+rdx*4]          ;
+
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line    ;
+
+        ; get the first horizontal line done       ;
+        movd        mm3,        [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        punpcklbw   mm3,        mm0                 ; xx 00 01 02 03 04 05 06
+
+        pmullw      mm3,        mm1                 ;
+        movd        mm5,        [rsi+1]             ;
+
+        punpcklbw   mm5,        mm0                 ;
+        pmullw      mm5,        mm2                 ;
+
+        paddw       mm3,        mm5                 ;
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        movq        mm7,        mm3                 ;
+        packuswb    mm7,        mm0                 ;
+
+        add         rsi,        rdx                 ; next line
+.next_row_4x4:
+        movd        mm3,        [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        punpcklbw   mm3,        mm0                 ; xx 00 01 02 03 04 05 06
+
+        pmullw      mm3,        mm1                 ;
+        movd        mm5,        [rsi+1]             ;
+
+        punpcklbw   mm5,        mm0                 ;
+        pmullw      mm5,        mm2                 ;
+
+        paddw       mm3,        mm5                 ;
+
+        movq        mm5,        mm7                 ;
+        punpcklbw   mm5,        mm0                 ;
+
+        pmullw      mm5,        [rax]               ;
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+        movq        mm7,        mm3                 ;
+
+        packuswb    mm7,        mm0                 ;
+
+        pmullw      mm3,        [rax+16]            ;
+        paddw       mm3,        mm5                 ;
+
+
+        paddw       mm3,        [GLOBAL(rd)]                 ; xmm3 += round value
+        psraw       mm3,        VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        packuswb    mm3,        mm0
+        movd        [rdi],      mm3                 ; store the results in the destination
+
+%if ABI_IS_32BIT
+        add         rsi,        rdx                 ; next line
+        add         rdi,        dword ptr arg(5) ;dst_pitch                   ;
+%else
+        movsxd      r8,         dword ptr arg(5) ;dst_pitch                   ;
+        add         rsi,        rdx                 ; next line
+        add         rdi,        r8
+%endif
+
+        cmp         rdi,        rcx                 ;
+        jne         .next_row_4x4
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+
+SECTION_RODATA
+align 16
+rd:
+    times 4 dw 0x40
+
+align 16
+global HIDDEN_DATA(sym(vp8_six_tap_mmx))
+sym(vp8_six_tap_mmx):
+    times 8 dw 0
+    times 8 dw 0
+    times 8 dw 128
+    times 8 dw 0
+    times 8 dw 0
+    times 8 dw 0
+
+    times 8 dw 0
+    times 8 dw -6
+    times 8 dw 123
+    times 8 dw 12
+    times 8 dw -1
+    times 8 dw 0
+
+    times 8 dw 2
+    times 8 dw -11
+    times 8 dw 108
+    times 8 dw 36
+    times 8 dw -8
+    times 8 dw 1
+
+    times 8 dw 0
+    times 8 dw -9
+    times 8 dw 93
+    times 8 dw 50
+    times 8 dw -6
+    times 8 dw 0
+
+    times 8 dw 3
+    times 8 dw -16
+    times 8 dw 77
+    times 8 dw 77
+    times 8 dw -16
+    times 8 dw 3
+
+    times 8 dw 0
+    times 8 dw -6
+    times 8 dw 50
+    times 8 dw 93
+    times 8 dw -9
+    times 8 dw 0
+
+    times 8 dw 1
+    times 8 dw -8
+    times 8 dw 36
+    times 8 dw 108
+    times 8 dw -11
+    times 8 dw 2
+
+    times 8 dw 0
+    times 8 dw -1
+    times 8 dw 12
+    times 8 dw 123
+    times 8 dw -6
+    times 8 dw 0
+
+
diff --git a/media/libvpx/vp8/common/x86/subpixel_sse2.asm b/media/libvpx/vp8/common/x86/subpixel_sse2.asm
new file mode 100644
index 000000000..69f8d103c
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/subpixel_sse2.asm
@@ -0,0 +1,1372 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+extern sym(vp8_bilinear_filters_x86_8)
+
+%define BLOCK_HEIGHT_WIDTH 4
+%define VP8_FILTER_WEIGHT 128
+%define VP8_FILTER_SHIFT  7
+
+
+;/************************************************************************************
+; Notes: filter_block1d_h6 applies a 6 tap filter horizontally to the input pixels. The
+; input pixel array has output_height rows. This routine assumes that output_height is an
+; even number. This function handles 8 pixels in horizontal direction, calculating ONE
+; rows each iteration to take advantage of the 128 bits operations.
+;*************************************************************************************/
+;void vp8_filter_block1d8_h6_sse2
+;(
+;    unsigned char  *src_ptr,
+;    unsigned short *output_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned int    pixel_step,
+;    unsigned int    output_height,
+;    unsigned int    output_width,
+;    short           *vp8_filter
+;)
+global sym(vp8_filter_block1d8_h6_sse2) PRIVATE
+sym(vp8_filter_block1d8_h6_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rdx,        arg(6) ;vp8_filter
+        mov         rsi,        arg(0) ;src_ptr
+
+        mov         rdi,        arg(1) ;output_ptr
+
+        movsxd      rcx,        dword ptr arg(4) ;output_height
+        movsxd      rax,        dword ptr arg(2) ;src_pixels_per_line            ; Pitch for Source
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(5) ;output_width
+%endif
+        pxor        xmm0,       xmm0                        ; clear xmm0 for unpack
+
+.filter_block1d8_h6_rowloop:
+        movq        xmm3,       MMWORD PTR [rsi - 2]
+        movq        xmm1,       MMWORD PTR [rsi + 6]
+
+        prefetcht2  [rsi+rax-2]
+
+        pslldq      xmm1,       8
+        por         xmm1,       xmm3
+
+        movdqa      xmm4,       xmm1
+        movdqa      xmm5,       xmm1
+
+        movdqa      xmm6,       xmm1
+        movdqa      xmm7,       xmm1
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        psrldq      xmm4,       1                           ; xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1
+
+        pmullw      xmm3,       XMMWORD PTR [rdx]           ; x[-2] * H[-2]; Tap 1
+        punpcklbw   xmm4,       xmm0                        ; xx06 xx05 xx04 xx03 xx02 xx01 xx00 xx-1
+
+        psrldq      xmm5,       2                           ; xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+        pmullw      xmm4,       XMMWORD PTR [rdx+16]        ; x[-1] * H[-1]; Tap 2
+
+
+        punpcklbw   xmm5,       xmm0                        ; xx07 xx06 xx05 xx04 xx03 xx02 xx01 xx00
+        psrldq      xmm6,       3                           ; xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01
+
+        pmullw      xmm5,       [rdx+32]                    ; x[ 0] * H[ 0]; Tap 3
+
+        punpcklbw   xmm6,       xmm0                        ; xx08 xx07 xx06 xx05 xx04 xx03 xx02 xx01
+        psrldq      xmm7,       4                           ; xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02
+
+        pmullw      xmm6,       [rdx+48]                    ; x[ 1] * h[ 1] ; Tap 4
+
+        punpcklbw   xmm7,       xmm0                        ; xx09 xx08 xx07 xx06 xx05 xx04 xx03 xx02
+        psrldq      xmm1,       5                           ; xx xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03
+
+
+        pmullw      xmm7,       [rdx+64]                    ; x[ 2] * h[ 2] ; Tap 5
+
+        punpcklbw   xmm1,       xmm0                        ; xx0a xx09 xx08 xx07 xx06 xx05 xx04 xx03
+        pmullw      xmm1,       [rdx+80]                    ; x[ 3] * h[ 3] ; Tap 6
+
+
+        paddsw      xmm4,       xmm7
+        paddsw      xmm4,       xmm5
+
+        paddsw      xmm4,       xmm3
+        paddsw      xmm4,       xmm6
+
+        paddsw      xmm4,       xmm1
+        paddsw      xmm4,       [GLOBAL(rd)]
+
+        psraw       xmm4,       7
+
+        packuswb    xmm4,       xmm0
+        punpcklbw   xmm4,       xmm0
+
+        movdqa      XMMWORD Ptr [rdi],         xmm4
+        lea         rsi,        [rsi + rax]
+
+%if ABI_IS_32BIT
+        add         rdi,        DWORD Ptr arg(5) ;[output_width]
+%else
+        add         rdi,        r8
+%endif
+        dec         rcx
+
+        jnz         .filter_block1d8_h6_rowloop                ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1d16_h6_sse2
+;(
+;    unsigned char  *src_ptr,
+;    unsigned short *output_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned int    pixel_step,
+;    unsigned int    output_height,
+;    unsigned int    output_width,
+;    short           *vp8_filter
+;)
+;/************************************************************************************
+; Notes: filter_block1d_h6 applies a 6 tap filter horizontally to the input pixels. The
+; input pixel array has output_height rows. This routine assumes that output_height is an
+; even number. This function handles 8 pixels in horizontal direction, calculating ONE
+; rows each iteration to take advantage of the 128 bits operations.
+;*************************************************************************************/
+global sym(vp8_filter_block1d16_h6_sse2) PRIVATE
+sym(vp8_filter_block1d16_h6_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rdx,        arg(6) ;vp8_filter
+        mov         rsi,        arg(0) ;src_ptr
+
+        mov         rdi,        arg(1) ;output_ptr
+
+        movsxd      rcx,        dword ptr arg(4) ;output_height
+        movsxd      rax,        dword ptr arg(2) ;src_pixels_per_line            ; Pitch for Source
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(5) ;output_width
+%endif
+
+        pxor        xmm0,       xmm0                        ; clear xmm0 for unpack
+
+.filter_block1d16_h6_sse2_rowloop:
+        movq        xmm3,       MMWORD PTR [rsi - 2]
+        movq        xmm1,       MMWORD PTR [rsi + 6]
+
+        movq        xmm2,       MMWORD PTR [rsi +14]
+        pslldq      xmm2,       8
+
+        por         xmm2,       xmm1
+        prefetcht2  [rsi+rax-2]
+
+        pslldq      xmm1,       8
+        por         xmm1,       xmm3
+
+        movdqa      xmm4,       xmm1
+        movdqa      xmm5,       xmm1
+
+        movdqa      xmm6,       xmm1
+        movdqa      xmm7,       xmm1
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        psrldq      xmm4,       1                           ; xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1
+
+        pmullw      xmm3,       XMMWORD PTR [rdx]           ; x[-2] * H[-2]; Tap 1
+        punpcklbw   xmm4,       xmm0                        ; xx06 xx05 xx04 xx03 xx02 xx01 xx00 xx-1
+
+        psrldq      xmm5,       2                           ; xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+        pmullw      xmm4,       XMMWORD PTR [rdx+16]        ; x[-1] * H[-1]; Tap 2
+
+
+        punpcklbw   xmm5,       xmm0                        ; xx07 xx06 xx05 xx04 xx03 xx02 xx01 xx00
+        psrldq      xmm6,       3                           ; xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01
+
+        pmullw      xmm5,       [rdx+32]                    ; x[ 0] * H[ 0]; Tap 3
+
+        punpcklbw   xmm6,       xmm0                        ; xx08 xx07 xx06 xx05 xx04 xx03 xx02 xx01
+        psrldq      xmm7,       4                           ; xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02
+
+        pmullw      xmm6,       [rdx+48]                    ; x[ 1] * h[ 1] ; Tap 4
+
+        punpcklbw   xmm7,       xmm0                        ; xx09 xx08 xx07 xx06 xx05 xx04 xx03 xx02
+        psrldq      xmm1,       5                           ; xx xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03
+
+
+        pmullw      xmm7,       [rdx+64]                    ; x[ 2] * h[ 2] ; Tap 5
+
+        punpcklbw   xmm1,       xmm0                        ; xx0a xx09 xx08 xx07 xx06 xx05 xx04 xx03
+        pmullw      xmm1,       [rdx+80]                    ; x[ 3] * h[ 3] ; Tap 6
+
+        paddsw      xmm4,       xmm7
+        paddsw      xmm4,       xmm5
+
+        paddsw      xmm4,       xmm3
+        paddsw      xmm4,       xmm6
+
+        paddsw      xmm4,       xmm1
+        paddsw      xmm4,       [GLOBAL(rd)]
+
+        psraw       xmm4,       7
+
+        packuswb    xmm4,       xmm0
+        punpcklbw   xmm4,       xmm0
+
+        movdqa      XMMWORD Ptr [rdi],         xmm4
+
+        movdqa      xmm3,       xmm2
+        movdqa      xmm4,       xmm2
+
+        movdqa      xmm5,       xmm2
+        movdqa      xmm6,       xmm2
+
+        movdqa      xmm7,       xmm2
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        psrldq      xmm4,       1                           ; xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1
+
+        pmullw      xmm3,       XMMWORD PTR [rdx]           ; x[-2] * H[-2]; Tap 1
+        punpcklbw   xmm4,       xmm0                        ; xx06 xx05 xx04 xx03 xx02 xx01 xx00 xx-1
+
+        psrldq      xmm5,       2                           ; xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+        pmullw      xmm4,       XMMWORD PTR [rdx+16]        ; x[-1] * H[-1]; Tap 2
+
+
+        punpcklbw   xmm5,       xmm0                        ; xx07 xx06 xx05 xx04 xx03 xx02 xx01 xx00
+        psrldq      xmm6,       3                           ; xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01
+
+        pmullw      xmm5,       [rdx+32]                    ; x[ 0] * H[ 0]; Tap 3
+
+        punpcklbw   xmm6,       xmm0                        ; xx08 xx07 xx06 xx05 xx04 xx03 xx02 xx01
+        psrldq      xmm7,       4                           ; xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02
+
+        pmullw      xmm6,       [rdx+48]                    ; x[ 1] * h[ 1] ; Tap 4
+
+        punpcklbw   xmm7,       xmm0                        ; xx09 xx08 xx07 xx06 xx05 xx04 xx03 xx02
+        psrldq      xmm2,       5                           ; xx xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03
+
+        pmullw      xmm7,       [rdx+64]                    ; x[ 2] * h[ 2] ; Tap 5
+
+        punpcklbw   xmm2,       xmm0                        ; xx0a xx09 xx08 xx07 xx06 xx05 xx04 xx03
+        pmullw      xmm2,       [rdx+80]                    ; x[ 3] * h[ 3] ; Tap 6
+
+
+        paddsw      xmm4,       xmm7
+        paddsw      xmm4,       xmm5
+
+        paddsw      xmm4,       xmm3
+        paddsw      xmm4,       xmm6
+
+        paddsw      xmm4,       xmm2
+        paddsw      xmm4,       [GLOBAL(rd)]
+
+        psraw       xmm4,       7
+
+        packuswb    xmm4,       xmm0
+        punpcklbw   xmm4,       xmm0
+
+        movdqa      XMMWORD Ptr [rdi+16],      xmm4
+
+        lea         rsi,        [rsi + rax]
+%if ABI_IS_32BIT
+        add         rdi,        DWORD Ptr arg(5) ;[output_width]
+%else
+        add         rdi,        r8
+%endif
+
+        dec         rcx
+        jnz         .filter_block1d16_h6_sse2_rowloop                ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1d8_v6_sse2
+;(
+;    short *src_ptr,
+;    unsigned char *output_ptr,
+;    int dst_ptich,
+;    unsigned int pixels_per_line,
+;    unsigned int pixel_step,
+;    unsigned int output_height,
+;    unsigned int output_width,
+;    short * vp8_filter
+;)
+;/************************************************************************************
+; Notes: filter_block1d8_v6 applies a 6 tap filter vertically to the input pixels. The
+; input pixel array has output_height rows.
+;*************************************************************************************/
+global sym(vp8_filter_block1d8_v6_sse2) PRIVATE
+sym(vp8_filter_block1d8_v6_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rax,        arg(7) ;vp8_filter
+        movsxd      rdx,        dword ptr arg(3) ;pixels_per_line
+
+        mov         rdi,        arg(1) ;output_ptr
+        mov         rsi,        arg(0) ;src_ptr
+
+        sub         rsi,        rdx
+        sub         rsi,        rdx
+
+        movsxd      rcx,        DWORD PTR arg(5) ;[output_height]
+        pxor        xmm0,       xmm0                        ; clear xmm0
+
+        movdqa      xmm7,       XMMWORD PTR [GLOBAL(rd)]
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(2) ; dst_ptich
+%endif
+
+.vp8_filter_block1d8_v6_sse2_loop:
+        movdqa      xmm1,       XMMWORD PTR [rsi]
+        pmullw      xmm1,       [rax]
+
+        movdqa      xmm2,       XMMWORD PTR [rsi + rdx]
+        pmullw      xmm2,       [rax + 16]
+
+        movdqa      xmm3,       XMMWORD PTR [rsi + rdx * 2]
+        pmullw      xmm3,       [rax + 32]
+
+        movdqa      xmm5,       XMMWORD PTR [rsi + rdx * 4]
+        pmullw      xmm5,       [rax + 64]
+
+        add         rsi,        rdx
+        movdqa      xmm4,       XMMWORD PTR [rsi + rdx * 2]
+
+        pmullw      xmm4,       [rax + 48]
+        movdqa      xmm6,       XMMWORD PTR [rsi + rdx * 4]
+
+        pmullw      xmm6,       [rax + 80]
+
+        paddsw      xmm2,       xmm5
+        paddsw      xmm2,       xmm3
+
+        paddsw      xmm2,       xmm1
+        paddsw      xmm2,       xmm4
+
+        paddsw      xmm2,       xmm6
+        paddsw      xmm2,       xmm7
+
+        psraw       xmm2,       7
+        packuswb    xmm2,       xmm0              ; pack and saturate
+
+        movq        QWORD PTR [rdi], xmm2         ; store the results in the destination
+%if ABI_IS_32BIT
+        add         rdi,        DWORD PTR arg(2) ;[dst_ptich]
+%else
+        add         rdi,        r8
+%endif
+        dec         rcx         ; decrement count
+        jnz         .vp8_filter_block1d8_v6_sse2_loop               ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1d16_v6_sse2
+;(
+;    unsigned short *src_ptr,
+;    unsigned char *output_ptr,
+;    int dst_ptich,
+;    unsigned int pixels_per_line,
+;    unsigned int pixel_step,
+;    unsigned int output_height,
+;    unsigned int output_width,
+;    const short    *vp8_filter
+;)
+;/************************************************************************************
+; Notes: filter_block1d16_v6 applies a 6 tap filter vertically to the input pixels. The
+; input pixel array has output_height rows.
+;*************************************************************************************/
+global sym(vp8_filter_block1d16_v6_sse2) PRIVATE
+sym(vp8_filter_block1d16_v6_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rax,        arg(7) ;vp8_filter
+        movsxd      rdx,        dword ptr arg(3) ;pixels_per_line
+
+        mov         rdi,        arg(1) ;output_ptr
+        mov         rsi,        arg(0) ;src_ptr
+
+        sub         rsi,        rdx
+        sub         rsi,        rdx
+
+        movsxd      rcx,        DWORD PTR arg(5) ;[output_height]
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(2) ; dst_ptich
+%endif
+
+.vp8_filter_block1d16_v6_sse2_loop:
+; The order for adding 6-tap is 2 5 3 1 4 6. Read in data in that order.
+        movdqa      xmm1,       XMMWORD PTR [rsi + rdx]       ; line 2
+        movdqa      xmm2,       XMMWORD PTR [rsi + rdx + 16]
+        pmullw      xmm1,       [rax + 16]
+        pmullw      xmm2,       [rax + 16]
+
+        movdqa      xmm3,       XMMWORD PTR [rsi + rdx * 4]       ; line 5
+        movdqa      xmm4,       XMMWORD PTR [rsi + rdx * 4 + 16]
+        pmullw      xmm3,       [rax + 64]
+        pmullw      xmm4,       [rax + 64]
+
+        movdqa      xmm5,       XMMWORD PTR [rsi + rdx * 2]       ; line 3
+        movdqa      xmm6,       XMMWORD PTR [rsi + rdx * 2 + 16]
+        pmullw      xmm5,       [rax + 32]
+        pmullw      xmm6,       [rax + 32]
+
+        movdqa      xmm7,       XMMWORD PTR [rsi]       ; line 1
+        movdqa      xmm0,       XMMWORD PTR [rsi + 16]
+        pmullw      xmm7,       [rax]
+        pmullw      xmm0,       [rax]
+
+        paddsw      xmm1,       xmm3
+        paddsw      xmm2,       xmm4
+        paddsw      xmm1,       xmm5
+        paddsw      xmm2,       xmm6
+        paddsw      xmm1,       xmm7
+        paddsw      xmm2,       xmm0
+
+        add         rsi,        rdx
+
+        movdqa      xmm3,       XMMWORD PTR [rsi + rdx * 2]       ; line 4
+        movdqa      xmm4,       XMMWORD PTR [rsi + rdx * 2 + 16]
+        pmullw      xmm3,       [rax + 48]
+        pmullw      xmm4,       [rax + 48]
+
+        movdqa      xmm5,       XMMWORD PTR [rsi + rdx * 4]       ; line 6
+        movdqa      xmm6,       XMMWORD PTR [rsi + rdx * 4 + 16]
+        pmullw      xmm5,       [rax + 80]
+        pmullw      xmm6,       [rax + 80]
+
+        movdqa      xmm7,       XMMWORD PTR [GLOBAL(rd)]
+        pxor        xmm0,       xmm0                        ; clear xmm0
+
+        paddsw      xmm1,       xmm3
+        paddsw      xmm2,       xmm4
+        paddsw      xmm1,       xmm5
+        paddsw      xmm2,       xmm6
+
+        paddsw      xmm1,       xmm7
+        paddsw      xmm2,       xmm7
+
+        psraw       xmm1,       7
+        psraw       xmm2,       7
+
+        packuswb    xmm1,       xmm2              ; pack and saturate
+        movdqa      XMMWORD PTR [rdi], xmm1       ; store the results in the destination
+%if ABI_IS_32BIT
+        add         rdi,        DWORD PTR arg(2) ;[dst_ptich]
+%else
+        add         rdi,        r8
+%endif
+        dec         rcx         ; decrement count
+        jnz         .vp8_filter_block1d16_v6_sse2_loop              ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1d8_h6_only_sse2
+;(
+;    unsigned char  *src_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned char  *output_ptr,
+;    int dst_ptich,
+;    unsigned int    output_height,
+;    const short    *vp8_filter
+;)
+; First-pass filter only when yoffset==0
+global sym(vp8_filter_block1d8_h6_only_sse2) PRIVATE
+sym(vp8_filter_block1d8_h6_only_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rdx,        arg(5) ;vp8_filter
+        mov         rsi,        arg(0) ;src_ptr
+
+        mov         rdi,        arg(2) ;output_ptr
+
+        movsxd      rcx,        dword ptr arg(4) ;output_height
+        movsxd      rax,        dword ptr arg(1) ;src_pixels_per_line            ; Pitch for Source
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(3) ;dst_ptich
+%endif
+        pxor        xmm0,       xmm0                        ; clear xmm0 for unpack
+
+.filter_block1d8_h6_only_rowloop:
+        movq        xmm3,       MMWORD PTR [rsi - 2]
+        movq        xmm1,       MMWORD PTR [rsi + 6]
+
+        prefetcht2  [rsi+rax-2]
+
+        pslldq      xmm1,       8
+        por         xmm1,       xmm3
+
+        movdqa      xmm4,       xmm1
+        movdqa      xmm5,       xmm1
+
+        movdqa      xmm6,       xmm1
+        movdqa      xmm7,       xmm1
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        psrldq      xmm4,       1                           ; xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1
+
+        pmullw      xmm3,       XMMWORD PTR [rdx]           ; x[-2] * H[-2]; Tap 1
+        punpcklbw   xmm4,       xmm0                        ; xx06 xx05 xx04 xx03 xx02 xx01 xx00 xx-1
+
+        psrldq      xmm5,       2                           ; xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+        pmullw      xmm4,       XMMWORD PTR [rdx+16]        ; x[-1] * H[-1]; Tap 2
+
+
+        punpcklbw   xmm5,       xmm0                        ; xx07 xx06 xx05 xx04 xx03 xx02 xx01 xx00
+        psrldq      xmm6,       3                           ; xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01
+
+        pmullw      xmm5,       [rdx+32]                    ; x[ 0] * H[ 0]; Tap 3
+
+        punpcklbw   xmm6,       xmm0                        ; xx08 xx07 xx06 xx05 xx04 xx03 xx02 xx01
+        psrldq      xmm7,       4                           ; xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02
+
+        pmullw      xmm6,       [rdx+48]                    ; x[ 1] * h[ 1] ; Tap 4
+
+        punpcklbw   xmm7,       xmm0                        ; xx09 xx08 xx07 xx06 xx05 xx04 xx03 xx02
+        psrldq      xmm1,       5                           ; xx xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03
+
+
+        pmullw      xmm7,       [rdx+64]                    ; x[ 2] * h[ 2] ; Tap 5
+
+        punpcklbw   xmm1,       xmm0                        ; xx0a xx09 xx08 xx07 xx06 xx05 xx04 xx03
+        pmullw      xmm1,       [rdx+80]                    ; x[ 3] * h[ 3] ; Tap 6
+
+
+        paddsw      xmm4,       xmm7
+        paddsw      xmm4,       xmm5
+
+        paddsw      xmm4,       xmm3
+        paddsw      xmm4,       xmm6
+
+        paddsw      xmm4,       xmm1
+        paddsw      xmm4,       [GLOBAL(rd)]
+
+        psraw       xmm4,       7
+
+        packuswb    xmm4,       xmm0
+
+        movq        QWORD PTR [rdi],   xmm4       ; store the results in the destination
+        lea         rsi,        [rsi + rax]
+
+%if ABI_IS_32BIT
+        add         rdi,        DWORD Ptr arg(3) ;dst_ptich
+%else
+        add         rdi,        r8
+%endif
+        dec         rcx
+
+        jnz         .filter_block1d8_h6_only_rowloop               ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1d16_h6_only_sse2
+;(
+;    unsigned char  *src_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned char  *output_ptr,
+;    int dst_ptich,
+;    unsigned int    output_height,
+;    const short    *vp8_filter
+;)
+; First-pass filter only when yoffset==0
+global sym(vp8_filter_block1d16_h6_only_sse2) PRIVATE
+sym(vp8_filter_block1d16_h6_only_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rdx,        arg(5) ;vp8_filter
+        mov         rsi,        arg(0) ;src_ptr
+
+        mov         rdi,        arg(2) ;output_ptr
+
+        movsxd      rcx,        dword ptr arg(4) ;output_height
+        movsxd      rax,        dword ptr arg(1) ;src_pixels_per_line            ; Pitch for Source
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(3) ;dst_ptich
+%endif
+
+        pxor        xmm0,       xmm0                        ; clear xmm0 for unpack
+
+.filter_block1d16_h6_only_sse2_rowloop:
+        movq        xmm3,       MMWORD PTR [rsi - 2]
+        movq        xmm1,       MMWORD PTR [rsi + 6]
+
+        movq        xmm2,       MMWORD PTR [rsi +14]
+        pslldq      xmm2,       8
+
+        por         xmm2,       xmm1
+        prefetcht2  [rsi+rax-2]
+
+        pslldq      xmm1,       8
+        por         xmm1,       xmm3
+
+        movdqa      xmm4,       xmm1
+        movdqa      xmm5,       xmm1
+
+        movdqa      xmm6,       xmm1
+        movdqa      xmm7,       xmm1
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        psrldq      xmm4,       1                           ; xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1
+
+        pmullw      xmm3,       XMMWORD PTR [rdx]           ; x[-2] * H[-2]; Tap 1
+        punpcklbw   xmm4,       xmm0                        ; xx06 xx05 xx04 xx03 xx02 xx01 xx00 xx-1
+
+        psrldq      xmm5,       2                           ; xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+        pmullw      xmm4,       XMMWORD PTR [rdx+16]        ; x[-1] * H[-1]; Tap 2
+
+        punpcklbw   xmm5,       xmm0                        ; xx07 xx06 xx05 xx04 xx03 xx02 xx01 xx00
+        psrldq      xmm6,       3                           ; xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01
+
+        pmullw      xmm5,       [rdx+32]                    ; x[ 0] * H[ 0]; Tap 3
+
+        punpcklbw   xmm6,       xmm0                        ; xx08 xx07 xx06 xx05 xx04 xx03 xx02 xx01
+        psrldq      xmm7,       4                           ; xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02
+
+        pmullw      xmm6,       [rdx+48]                    ; x[ 1] * h[ 1] ; Tap 4
+
+        punpcklbw   xmm7,       xmm0                        ; xx09 xx08 xx07 xx06 xx05 xx04 xx03 xx02
+        psrldq      xmm1,       5                           ; xx xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03
+
+        pmullw      xmm7,       [rdx+64]                    ; x[ 2] * h[ 2] ; Tap 5
+
+        punpcklbw   xmm1,       xmm0                        ; xx0a xx09 xx08 xx07 xx06 xx05 xx04 xx03
+        pmullw      xmm1,       [rdx+80]                    ; x[ 3] * h[ 3] ; Tap 6
+
+        paddsw      xmm4,       xmm7
+        paddsw      xmm4,       xmm5
+
+        paddsw      xmm4,       xmm3
+        paddsw      xmm4,       xmm6
+
+        paddsw      xmm4,       xmm1
+        paddsw      xmm4,       [GLOBAL(rd)]
+
+        psraw       xmm4,       7
+
+        packuswb    xmm4,       xmm0                        ; lower 8 bytes
+
+        movq        QWORD Ptr [rdi],         xmm4           ; store the results in the destination
+
+        movdqa      xmm3,       xmm2
+        movdqa      xmm4,       xmm2
+
+        movdqa      xmm5,       xmm2
+        movdqa      xmm6,       xmm2
+
+        movdqa      xmm7,       xmm2
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        psrldq      xmm4,       1                           ; xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1
+
+        pmullw      xmm3,       XMMWORD PTR [rdx]           ; x[-2] * H[-2]; Tap 1
+        punpcklbw   xmm4,       xmm0                        ; xx06 xx05 xx04 xx03 xx02 xx01 xx00 xx-1
+
+        psrldq      xmm5,       2                           ; xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+        pmullw      xmm4,       XMMWORD PTR [rdx+16]        ; x[-1] * H[-1]; Tap 2
+
+        punpcklbw   xmm5,       xmm0                        ; xx07 xx06 xx05 xx04 xx03 xx02 xx01 xx00
+        psrldq      xmm6,       3                           ; xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01
+
+        pmullw      xmm5,       [rdx+32]                    ; x[ 0] * H[ 0]; Tap 3
+
+        punpcklbw   xmm6,       xmm0                        ; xx08 xx07 xx06 xx05 xx04 xx03 xx02 xx01
+        psrldq      xmm7,       4                           ; xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03 02
+
+        pmullw      xmm6,       [rdx+48]                    ; x[ 1] * h[ 1] ; Tap 4
+
+        punpcklbw   xmm7,       xmm0                        ; xx09 xx08 xx07 xx06 xx05 xx04 xx03 xx02
+        psrldq      xmm2,       5                           ; xx xx xx xx xx 0d 0c 0b 0a 09 08 07 06 05 04 03
+
+        pmullw      xmm7,       [rdx+64]                    ; x[ 2] * h[ 2] ; Tap 5
+
+        punpcklbw   xmm2,       xmm0                        ; xx0a xx09 xx08 xx07 xx06 xx05 xx04 xx03
+        pmullw      xmm2,       [rdx+80]                    ; x[ 3] * h[ 3] ; Tap 6
+
+        paddsw      xmm4,       xmm7
+        paddsw      xmm4,       xmm5
+
+        paddsw      xmm4,       xmm3
+        paddsw      xmm4,       xmm6
+
+        paddsw      xmm4,       xmm2
+        paddsw      xmm4,       [GLOBAL(rd)]
+
+        psraw       xmm4,       7
+
+        packuswb    xmm4,       xmm0                        ; higher 8 bytes
+
+        movq        QWORD Ptr [rdi+8],      xmm4            ; store the results in the destination
+
+        lea         rsi,        [rsi + rax]
+%if ABI_IS_32BIT
+        add         rdi,        DWORD Ptr arg(3) ;dst_ptich
+%else
+        add         rdi,        r8
+%endif
+
+        dec         rcx
+        jnz         .filter_block1d16_h6_only_sse2_rowloop               ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_filter_block1d8_v6_only_sse2
+;(
+;    unsigned char *src_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned char *output_ptr,
+;    int dst_ptich,
+;    unsigned int output_height,
+;    const short    *vp8_filter
+;)
+; Second-pass filter only when xoffset==0
+global sym(vp8_filter_block1d8_v6_only_sse2) PRIVATE
+sym(vp8_filter_block1d8_v6_only_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0) ;src_ptr
+        mov         rdi,        arg(2) ;output_ptr
+
+        movsxd      rcx,        dword ptr arg(4) ;output_height
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line
+
+        mov         rax,        arg(5) ;vp8_filter
+
+        pxor        xmm0,       xmm0                        ; clear xmm0
+
+        movdqa      xmm7,       XMMWORD PTR [GLOBAL(rd)]
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(3) ; dst_ptich
+%endif
+
+.vp8_filter_block1d8_v6_only_sse2_loop:
+        movq        xmm1,       MMWORD PTR [rsi]
+        movq        xmm2,       MMWORD PTR [rsi + rdx]
+        movq        xmm3,       MMWORD PTR [rsi + rdx * 2]
+        movq        xmm5,       MMWORD PTR [rsi + rdx * 4]
+        add         rsi,        rdx
+        movq        xmm4,       MMWORD PTR [rsi + rdx * 2]
+        movq        xmm6,       MMWORD PTR [rsi + rdx * 4]
+
+        punpcklbw   xmm1,       xmm0
+        pmullw      xmm1,       [rax]
+
+        punpcklbw   xmm2,       xmm0
+        pmullw      xmm2,       [rax + 16]
+
+        punpcklbw   xmm3,       xmm0
+        pmullw      xmm3,       [rax + 32]
+
+        punpcklbw   xmm5,       xmm0
+        pmullw      xmm5,       [rax + 64]
+
+        punpcklbw   xmm4,       xmm0
+        pmullw      xmm4,       [rax + 48]
+
+        punpcklbw   xmm6,       xmm0
+        pmullw      xmm6,       [rax + 80]
+
+        paddsw      xmm2,       xmm5
+        paddsw      xmm2,       xmm3
+
+        paddsw      xmm2,       xmm1
+        paddsw      xmm2,       xmm4
+
+        paddsw      xmm2,       xmm6
+        paddsw      xmm2,       xmm7
+
+        psraw       xmm2,       7
+        packuswb    xmm2,       xmm0              ; pack and saturate
+
+        movq        QWORD PTR [rdi], xmm2         ; store the results in the destination
+%if ABI_IS_32BIT
+        add         rdi,        DWORD PTR arg(3) ;[dst_ptich]
+%else
+        add         rdi,        r8
+%endif
+        dec         rcx         ; decrement count
+        jnz         .vp8_filter_block1d8_v6_only_sse2_loop              ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_unpack_block1d16_h6_sse2
+;(
+;    unsigned char  *src_ptr,
+;    unsigned short *output_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned int    output_height,
+;    unsigned int    output_width
+;)
+global sym(vp8_unpack_block1d16_h6_sse2) PRIVATE
+sym(vp8_unpack_block1d16_h6_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0) ;src_ptr
+        mov         rdi,        arg(1) ;output_ptr
+
+        movsxd      rcx,        dword ptr arg(3) ;output_height
+        movsxd      rax,        dword ptr arg(2) ;src_pixels_per_line            ; Pitch for Source
+
+        pxor        xmm0,       xmm0                        ; clear xmm0 for unpack
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(4) ;output_width            ; Pitch for Source
+%endif
+
+.unpack_block1d16_h6_sse2_rowloop:
+        movq        xmm1,       MMWORD PTR [rsi]            ; 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 -1 -2
+        movq        xmm3,       MMWORD PTR [rsi+8]          ; make copy of xmm1
+
+        punpcklbw   xmm3,       xmm0                        ; xx05 xx04 xx03 xx02 xx01 xx01 xx-1 xx-2
+        punpcklbw   xmm1,       xmm0
+
+        movdqa      XMMWORD Ptr [rdi],         xmm1
+        movdqa      XMMWORD Ptr [rdi + 16],    xmm3
+
+        lea         rsi,        [rsi + rax]
+%if ABI_IS_32BIT
+        add         rdi,        DWORD Ptr arg(4) ;[output_width]
+%else
+        add         rdi,        r8
+%endif
+        dec         rcx
+        jnz         .unpack_block1d16_h6_sse2_rowloop               ; next row
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_bilinear_predict16x16_sse2
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;    unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+extern sym(vp8_bilinear_filters_x86_8)
+global sym(vp8_bilinear_predict16x16_sse2) PRIVATE
+sym(vp8_bilinear_predict16x16_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ;const short *HFilter = vp8_bilinear_filters_x86_8[xoffset]
+    ;const short *VFilter = vp8_bilinear_filters_x86_8[yoffset]
+
+        lea         rcx,        [GLOBAL(sym(vp8_bilinear_filters_x86_8))]
+        movsxd      rax,        dword ptr arg(2) ;xoffset
+
+        cmp         rax,        0      ;skip first_pass filter if xoffset=0
+        je          .b16x16_sp_only
+
+        shl         rax,        5
+        add         rax,        rcx    ;HFilter
+
+        mov         rdi,        arg(4) ;dst_ptr
+        mov         rsi,        arg(0) ;src_ptr
+        movsxd      rdx,        dword ptr arg(5) ;dst_pitch
+
+        movdqa      xmm1,       [rax]
+        movdqa      xmm2,       [rax+16]
+
+        movsxd      rax,        dword ptr arg(3) ;yoffset
+
+        cmp         rax,        0      ;skip second_pass filter if yoffset=0
+        je          .b16x16_fp_only
+
+        shl         rax,        5
+        add         rax,        rcx    ;VFilter
+
+        lea         rcx,        [rdi+rdx*8]
+        lea         rcx,        [rcx+rdx*8]
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line
+
+        pxor        xmm0,       xmm0
+
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(5) ;dst_pitch
+%endif
+        ; get the first horizontal line done
+        movdqu      xmm3,       [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movdqa      xmm4,       xmm3                 ; make a copy of current line
+
+        punpcklbw   xmm3,       xmm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   xmm4,       xmm0
+
+        pmullw      xmm3,       xmm1
+        pmullw      xmm4,       xmm1
+
+        movdqu      xmm5,       [rsi+1]
+        movdqa      xmm6,       xmm5
+
+        punpcklbw   xmm5,       xmm0
+        punpckhbw   xmm6,       xmm0
+
+        pmullw      xmm5,       xmm2
+        pmullw      xmm6,       xmm2
+
+        paddw       xmm3,       xmm5
+        paddw       xmm4,       xmm6
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]
+        psraw       xmm4,       VP8_FILTER_SHIFT
+
+        movdqa      xmm7,       xmm3
+        packuswb    xmm7,       xmm4
+
+        add         rsi,        rdx                 ; next line
+.next_row:
+        movdqu      xmm3,       [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movdqa      xmm4,       xmm3                 ; make a copy of current line
+
+        punpcklbw   xmm3,       xmm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   xmm4,       xmm0
+
+        pmullw      xmm3,       xmm1
+        pmullw      xmm4,       xmm1
+
+        movdqu      xmm5,       [rsi+1]
+        movdqa      xmm6,       xmm5
+
+        punpcklbw   xmm5,       xmm0
+        punpckhbw   xmm6,       xmm0
+
+        pmullw      xmm5,       xmm2
+        pmullw      xmm6,       xmm2
+
+        paddw       xmm3,       xmm5
+        paddw       xmm4,       xmm6
+
+        movdqa      xmm5,       xmm7
+        movdqa      xmm6,       xmm7
+
+        punpcklbw   xmm5,       xmm0
+        punpckhbw   xmm6,       xmm0
+
+        pmullw      xmm5,       [rax]
+        pmullw      xmm6,       [rax]
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]
+        psraw       xmm4,       VP8_FILTER_SHIFT
+
+        movdqa      xmm7,       xmm3
+        packuswb    xmm7,       xmm4
+
+        pmullw      xmm3,       [rax+16]
+        pmullw      xmm4,       [rax+16]
+
+        paddw       xmm3,       xmm5
+        paddw       xmm4,       xmm6
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]
+        psraw       xmm4,       VP8_FILTER_SHIFT
+
+        packuswb    xmm3,       xmm4
+        movdqa      [rdi],      xmm3                 ; store the results in the destination
+
+        add         rsi,        rdx                 ; next line
+%if ABI_IS_32BIT
+        add         rdi,        DWORD PTR arg(5) ;dst_pitch
+%else
+        add         rdi,        r8
+%endif
+
+        cmp         rdi,        rcx
+        jne         .next_row
+
+        jmp         .done
+
+.b16x16_sp_only:
+        movsxd      rax,        dword ptr arg(3) ;yoffset
+        shl         rax,        5
+        add         rax,        rcx    ;VFilter
+
+        mov         rdi,        arg(4) ;dst_ptr
+        mov         rsi,        arg(0) ;src_ptr
+        movsxd      rdx,        dword ptr arg(5) ;dst_pitch
+
+        movdqa      xmm1,       [rax]
+        movdqa      xmm2,       [rax+16]
+
+        lea         rcx,        [rdi+rdx*8]
+        lea         rcx,        [rcx+rdx*8]
+        movsxd      rax,        dword ptr arg(1) ;src_pixels_per_line
+
+        pxor        xmm0,       xmm0
+
+        ; get the first horizontal line done
+        movdqu      xmm7,       [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+
+        add         rsi,        rax                 ; next line
+.next_row_spo:
+        movdqu      xmm3,       [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+
+        movdqa      xmm5,       xmm7
+        movdqa      xmm6,       xmm7
+
+        movdqa      xmm4,       xmm3                 ; make a copy of current line
+        movdqa      xmm7,       xmm3
+
+        punpcklbw   xmm5,       xmm0
+        punpckhbw   xmm6,       xmm0
+        punpcklbw   xmm3,       xmm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   xmm4,       xmm0
+
+        pmullw      xmm5,       xmm1
+        pmullw      xmm6,       xmm1
+        pmullw      xmm3,       xmm2
+        pmullw      xmm4,       xmm2
+
+        paddw       xmm3,       xmm5
+        paddw       xmm4,       xmm6
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]
+        psraw       xmm4,       VP8_FILTER_SHIFT
+
+        packuswb    xmm3,       xmm4
+        movdqa      [rdi],      xmm3                 ; store the results in the destination
+
+        add         rsi,        rax                 ; next line
+        add         rdi,        rdx                 ;dst_pitch
+        cmp         rdi,        rcx
+        jne         .next_row_spo
+
+        jmp         .done
+
+.b16x16_fp_only:
+        lea         rcx,        [rdi+rdx*8]
+        lea         rcx,        [rcx+rdx*8]
+        movsxd      rax,        dword ptr arg(1) ;src_pixels_per_line
+        pxor        xmm0,       xmm0
+
+.next_row_fpo:
+        movdqu      xmm3,       [rsi]               ; xx 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
+        movdqa      xmm4,       xmm3                 ; make a copy of current line
+
+        punpcklbw   xmm3,       xmm0                 ; xx 00 01 02 03 04 05 06
+        punpckhbw   xmm4,       xmm0
+
+        pmullw      xmm3,       xmm1
+        pmullw      xmm4,       xmm1
+
+        movdqu      xmm5,       [rsi+1]
+        movdqa      xmm6,       xmm5
+
+        punpcklbw   xmm5,       xmm0
+        punpckhbw   xmm6,       xmm0
+
+        pmullw      xmm5,       xmm2
+        pmullw      xmm6,       xmm2
+
+        paddw       xmm3,       xmm5
+        paddw       xmm4,       xmm6
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]
+        psraw       xmm4,       VP8_FILTER_SHIFT
+
+        packuswb    xmm3,       xmm4
+        movdqa      [rdi],      xmm3                 ; store the results in the destination
+
+        add         rsi,        rax                 ; next line
+        add         rdi,        rdx                 ; dst_pitch
+        cmp         rdi,        rcx
+        jne         .next_row_fpo
+
+.done:
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_bilinear_predict8x8_sse2
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;    unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+global sym(vp8_bilinear_predict8x8_sse2) PRIVATE
+sym(vp8_bilinear_predict8x8_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 144                         ; reserve 144 bytes
+
+    ;const short *HFilter = vp8_bilinear_filters_x86_8[xoffset]
+    ;const short *VFilter = vp8_bilinear_filters_x86_8[yoffset]
+        lea         rcx,        [GLOBAL(sym(vp8_bilinear_filters_x86_8))]
+
+        mov         rsi,        arg(0) ;src_ptr
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line
+
+    ;Read 9-line unaligned data in and put them on stack. This gives a big
+    ;performance boost.
+        movdqu      xmm0,       [rsi]
+        lea         rax,        [rdx + rdx*2]
+        movdqu      xmm1,       [rsi+rdx]
+        movdqu      xmm2,       [rsi+rdx*2]
+        add         rsi,        rax
+        movdqu      xmm3,       [rsi]
+        movdqu      xmm4,       [rsi+rdx]
+        movdqu      xmm5,       [rsi+rdx*2]
+        add         rsi,        rax
+        movdqu      xmm6,       [rsi]
+        movdqu      xmm7,       [rsi+rdx]
+
+        movdqa      XMMWORD PTR [rsp],            xmm0
+
+        movdqu      xmm0,       [rsi+rdx*2]
+
+        movdqa      XMMWORD PTR [rsp+16],         xmm1
+        movdqa      XMMWORD PTR [rsp+32],         xmm2
+        movdqa      XMMWORD PTR [rsp+48],         xmm3
+        movdqa      XMMWORD PTR [rsp+64],         xmm4
+        movdqa      XMMWORD PTR [rsp+80],         xmm5
+        movdqa      XMMWORD PTR [rsp+96],         xmm6
+        movdqa      XMMWORD PTR [rsp+112],        xmm7
+        movdqa      XMMWORD PTR [rsp+128],        xmm0
+
+        movsxd      rax,        dword ptr arg(2) ;xoffset
+        shl         rax,        5
+        add         rax,        rcx    ;HFilter
+
+        mov         rdi,        arg(4) ;dst_ptr
+        movsxd      rdx,        dword ptr arg(5) ;dst_pitch
+
+        movdqa      xmm1,       [rax]
+        movdqa      xmm2,       [rax+16]
+
+        movsxd      rax,        dword ptr arg(3) ;yoffset
+        shl         rax,        5
+        add         rax,        rcx    ;VFilter
+
+        lea         rcx,        [rdi+rdx*8]
+
+        movdqa      xmm5,       [rax]
+        movdqa      xmm6,       [rax+16]
+
+        pxor        xmm0,       xmm0
+
+        ; get the first horizontal line done
+        movdqa      xmm3,       XMMWORD PTR [rsp]
+        movdqa      xmm4,       xmm3                 ; make a copy of current line
+        psrldq      xmm4,       1
+
+        punpcklbw   xmm3,       xmm0                 ; 00 01 02 03 04 05 06 07
+        punpcklbw   xmm4,       xmm0                 ; 01 02 03 04 05 06 07 08
+
+        pmullw      xmm3,       xmm1
+        pmullw      xmm4,       xmm2
+
+        paddw       xmm3,       xmm4
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        movdqa      xmm7,       xmm3
+        add         rsp,        16                 ; next line
+.next_row8x8:
+        movdqa      xmm3,       XMMWORD PTR [rsp]               ; 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
+        movdqa      xmm4,       xmm3                 ; make a copy of current line
+        psrldq      xmm4,       1
+
+        punpcklbw   xmm3,       xmm0                 ; 00 01 02 03 04 05 06 07
+        punpcklbw   xmm4,       xmm0                 ; 01 02 03 04 05 06 07 08
+
+        pmullw      xmm3,       xmm1
+        pmullw      xmm4,       xmm2
+
+        paddw       xmm3,       xmm4
+        pmullw      xmm7,       xmm5
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        movdqa      xmm4,       xmm3
+
+        pmullw      xmm3,       xmm6
+        paddw       xmm3,       xmm7
+
+        movdqa      xmm7,       xmm4
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT        ; xmm3 /= 128
+
+        packuswb    xmm3,       xmm0
+        movq        [rdi],      xmm3                 ; store the results in the destination
+
+        add         rsp,        16                 ; next line
+        add         rdi,        rdx
+
+        cmp         rdi,        rcx
+        jne         .next_row8x8
+
+    ;add rsp, 144
+    pop rsp
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+SECTION_RODATA
+align 16
+rd:
+    times 8 dw 0x40
diff --git a/media/libvpx/vp8/common/x86/subpixel_ssse3.asm b/media/libvpx/vp8/common/x86/subpixel_ssse3.asm
new file mode 100644
index 000000000..c06f24556
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/subpixel_ssse3.asm
@@ -0,0 +1,1508 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%define BLOCK_HEIGHT_WIDTH 4
+%define VP8_FILTER_WEIGHT 128
+%define VP8_FILTER_SHIFT  7
+
+
+;/************************************************************************************
+; Notes: filter_block1d_h6 applies a 6 tap filter horizontally to the input pixels. The
+; input pixel array has output_height rows. This routine assumes that output_height is an
+; even number. This function handles 8 pixels in horizontal direction, calculating ONE
+; rows each iteration to take advantage of the 128 bits operations.
+;
+; This is an implementation of some of the SSE optimizations first seen in ffvp8
+;
+;*************************************************************************************/
+;void vp8_filter_block1d8_h6_ssse3
+;(
+;    unsigned char  *src_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned char *output_ptr,
+;    unsigned int    output_pitch,
+;    unsigned int    output_height,
+;    unsigned int    vp8_filter_index
+;)
+global sym(vp8_filter_block1d8_h6_ssse3) PRIVATE
+sym(vp8_filter_block1d8_h6_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movsxd      rdx, DWORD PTR arg(5)   ;table index
+    xor         rsi, rsi
+    shl         rdx, 4
+
+    movdqa      xmm7, [GLOBAL(rd)]
+
+    lea         rax, [GLOBAL(k0_k5)]
+    add         rax, rdx
+    mov         rdi, arg(2)             ;output_ptr
+
+    cmp         esi, DWORD PTR [rax]
+    je          vp8_filter_block1d8_h4_ssse3
+
+    movdqa      xmm4, XMMWORD PTR [rax]         ;k0_k5
+    movdqa      xmm5, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm6, XMMWORD PTR [rax+128]     ;k1_k3
+
+    mov         rsi, arg(0)             ;src_ptr
+    movsxd      rax, dword ptr arg(1)   ;src_pixels_per_line
+    movsxd      rcx, dword ptr arg(4)   ;output_height
+
+    movsxd      rdx, dword ptr arg(3)   ;output_pitch
+
+    sub         rdi, rdx
+;xmm3 free
+.filter_block1d8_h6_rowloop_ssse3:
+    movq        xmm0,   MMWORD PTR [rsi - 2]    ; -2 -1  0  1  2  3  4  5
+
+    movq        xmm2,   MMWORD PTR [rsi + 3]    ;  3  4  5  6  7  8  9 10
+
+    punpcklbw   xmm0,   xmm2                    ; -2  3 -1  4  0  5  1  6  2  7  3  8  4  9  5 10
+
+    movdqa      xmm1,   xmm0
+    pmaddubsw   xmm0,   xmm4
+
+    movdqa      xmm2,   xmm1
+    pshufb      xmm1,   [GLOBAL(shuf2bfrom1)]
+
+    pshufb      xmm2,   [GLOBAL(shuf3bfrom1)]
+    pmaddubsw   xmm1,   xmm5
+
+    lea         rdi,    [rdi + rdx]
+    pmaddubsw   xmm2,   xmm6
+
+    lea         rsi,    [rsi + rax]
+    dec         rcx
+
+    paddsw      xmm0,   xmm1
+    paddsw      xmm2,   xmm7
+
+    paddsw      xmm0,   xmm2
+
+    psraw       xmm0,   7
+
+    packuswb    xmm0,   xmm0
+
+    movq        MMWORD Ptr [rdi], xmm0
+    jnz         .filter_block1d8_h6_rowloop_ssse3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+vp8_filter_block1d8_h4_ssse3:
+    movdqa      xmm5, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm6, XMMWORD PTR [rax+128]     ;k1_k3
+
+    movdqa      xmm3, XMMWORD PTR [GLOBAL(shuf2bfrom1)]
+    movdqa      xmm4, XMMWORD PTR [GLOBAL(shuf3bfrom1)]
+
+    mov         rsi, arg(0)             ;src_ptr
+
+    movsxd      rax, dword ptr arg(1)   ;src_pixels_per_line
+    movsxd      rcx, dword ptr arg(4)   ;output_height
+
+    movsxd      rdx, dword ptr arg(3)   ;output_pitch
+
+    sub         rdi, rdx
+
+.filter_block1d8_h4_rowloop_ssse3:
+    movq        xmm0,   MMWORD PTR [rsi - 2]    ; -2 -1  0  1  2  3  4  5
+
+    movq        xmm1,   MMWORD PTR [rsi + 3]    ;  3  4  5  6  7  8  9 10
+
+    punpcklbw   xmm0,   xmm1                    ; -2  3 -1  4  0  5  1  6  2  7  3  8  4  9  5 10
+
+    movdqa      xmm2,   xmm0
+    pshufb      xmm0,   xmm3
+
+    pshufb      xmm2,   xmm4
+    pmaddubsw   xmm0,   xmm5
+
+    lea         rdi,    [rdi + rdx]
+    pmaddubsw   xmm2,   xmm6
+
+    lea         rsi,    [rsi + rax]
+    dec         rcx
+
+    paddsw      xmm0,   xmm7
+
+    paddsw      xmm0,   xmm2
+
+    psraw       xmm0,   7
+
+    packuswb    xmm0,   xmm0
+
+    movq        MMWORD Ptr [rdi], xmm0
+
+    jnz         .filter_block1d8_h4_rowloop_ssse3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+;void vp8_filter_block1d16_h6_ssse3
+;(
+;    unsigned char  *src_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned char  *output_ptr,
+;    unsigned int    output_pitch,
+;    unsigned int    output_height,
+;    unsigned int    vp8_filter_index
+;)
+global sym(vp8_filter_block1d16_h6_ssse3) PRIVATE
+sym(vp8_filter_block1d16_h6_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movsxd      rdx, DWORD PTR arg(5)           ;table index
+    xor         rsi, rsi
+    shl         rdx, 4      ;
+
+    lea         rax, [GLOBAL(k0_k5)]
+    add         rax, rdx
+
+    mov         rdi, arg(2)                     ;output_ptr
+
+    mov         rsi, arg(0)                     ;src_ptr
+
+    movdqa      xmm4, XMMWORD PTR [rax]         ;k0_k5
+    movdqa      xmm5, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm6, XMMWORD PTR [rax+128]     ;k1_k3
+
+    movsxd      rax, dword ptr arg(1)           ;src_pixels_per_line
+    movsxd      rcx, dword ptr arg(4)           ;output_height
+    movsxd      rdx, dword ptr arg(3)           ;output_pitch
+
+.filter_block1d16_h6_rowloop_ssse3:
+    movq        xmm0,   MMWORD PTR [rsi - 2]    ; -2 -1  0  1  2  3  4  5
+
+    movq        xmm3,   MMWORD PTR [rsi + 3]    ;  3  4  5  6  7  8  9 10
+
+    punpcklbw   xmm0,   xmm3                    ; -2  3 -1  4  0  5  1  6  2  7  3  8  4  9  5 10
+
+    movdqa      xmm1,   xmm0
+    pmaddubsw   xmm0,   xmm4
+
+    movdqa      xmm2,   xmm1
+    pshufb      xmm1,   [GLOBAL(shuf2bfrom1)]
+
+    pshufb      xmm2,   [GLOBAL(shuf3bfrom1)]
+    movq        xmm3,   MMWORD PTR [rsi +  6]
+
+    pmaddubsw   xmm1,   xmm5
+    movq        xmm7,   MMWORD PTR [rsi + 11]
+
+    pmaddubsw   xmm2,   xmm6
+    punpcklbw   xmm3,   xmm7
+
+    paddsw      xmm0,   xmm1
+    movdqa      xmm1,   xmm3
+
+    pmaddubsw   xmm3,   xmm4
+    paddsw      xmm0,   xmm2
+
+    movdqa      xmm2,   xmm1
+    paddsw      xmm0,   [GLOBAL(rd)]
+
+    pshufb      xmm1,   [GLOBAL(shuf2bfrom1)]
+    pshufb      xmm2,   [GLOBAL(shuf3bfrom1)]
+
+    psraw       xmm0,   7
+    pmaddubsw   xmm1,   xmm5
+
+    pmaddubsw   xmm2,   xmm6
+    packuswb    xmm0,   xmm0
+
+    lea         rsi,    [rsi + rax]
+    paddsw      xmm3,   xmm1
+
+    paddsw      xmm3,   xmm2
+
+    paddsw      xmm3,   [GLOBAL(rd)]
+
+    psraw       xmm3,   7
+
+    packuswb    xmm3,   xmm3
+
+    punpcklqdq  xmm0,   xmm3
+
+    movdqa      XMMWORD Ptr [rdi], xmm0
+
+    lea         rdi,    [rdi + rdx]
+    dec         rcx
+    jnz         .filter_block1d16_h6_rowloop_ssse3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_filter_block1d4_h6_ssse3
+;(
+;    unsigned char  *src_ptr,
+;    unsigned int    src_pixels_per_line,
+;    unsigned char  *output_ptr,
+;    unsigned int    output_pitch,
+;    unsigned int    output_height,
+;    unsigned int    vp8_filter_index
+;)
+global sym(vp8_filter_block1d4_h6_ssse3) PRIVATE
+sym(vp8_filter_block1d4_h6_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movsxd      rdx, DWORD PTR arg(5)   ;table index
+    xor         rsi, rsi
+    shl         rdx, 4      ;
+
+    lea         rax, [GLOBAL(k0_k5)]
+    add         rax, rdx
+    movdqa      xmm7, [GLOBAL(rd)]
+
+    cmp         esi, DWORD PTR [rax]
+    je          .vp8_filter_block1d4_h4_ssse3
+
+    movdqa      xmm4, XMMWORD PTR [rax]         ;k0_k5
+    movdqa      xmm5, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm6, XMMWORD PTR [rax+128]     ;k1_k3
+
+    mov         rsi, arg(0)             ;src_ptr
+    mov         rdi, arg(2)             ;output_ptr
+    movsxd      rax, dword ptr arg(1)   ;src_pixels_per_line
+    movsxd      rcx, dword ptr arg(4)   ;output_height
+
+    movsxd      rdx, dword ptr arg(3)   ;output_pitch
+
+;xmm3 free
+.filter_block1d4_h6_rowloop_ssse3:
+    movdqu      xmm0,   XMMWORD PTR [rsi - 2]
+
+    movdqa      xmm1, xmm0
+    pshufb      xmm0, [GLOBAL(shuf1b)]
+
+    movdqa      xmm2, xmm1
+    pshufb      xmm1, [GLOBAL(shuf2b)]
+    pmaddubsw   xmm0, xmm4
+    pshufb      xmm2, [GLOBAL(shuf3b)]
+    pmaddubsw   xmm1, xmm5
+
+;--
+    pmaddubsw   xmm2, xmm6
+
+    lea         rsi,    [rsi + rax]
+;--
+    paddsw      xmm0, xmm1
+    paddsw      xmm0, xmm7
+    pxor        xmm1, xmm1
+    paddsw      xmm0, xmm2
+    psraw       xmm0, 7
+    packuswb    xmm0, xmm0
+
+    movd        DWORD PTR [rdi], xmm0
+
+    add         rdi, rdx
+    dec         rcx
+    jnz         .filter_block1d4_h6_rowloop_ssse3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+.vp8_filter_block1d4_h4_ssse3:
+    movdqa      xmm5, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm6, XMMWORD PTR [rax+128]     ;k1_k3
+    movdqa      xmm0, XMMWORD PTR [GLOBAL(shuf2b)]
+    movdqa      xmm3, XMMWORD PTR [GLOBAL(shuf3b)]
+
+    mov         rsi, arg(0)             ;src_ptr
+    mov         rdi, arg(2)             ;output_ptr
+    movsxd      rax, dword ptr arg(1)   ;src_pixels_per_line
+    movsxd      rcx, dword ptr arg(4)   ;output_height
+
+    movsxd      rdx, dword ptr arg(3)   ;output_pitch
+
+.filter_block1d4_h4_rowloop_ssse3:
+    movdqu      xmm1,   XMMWORD PTR [rsi - 2]
+
+    movdqa      xmm2, xmm1
+    pshufb      xmm1, xmm0 ;;[GLOBAL(shuf2b)]
+    pshufb      xmm2, xmm3 ;;[GLOBAL(shuf3b)]
+    pmaddubsw   xmm1, xmm5
+
+;--
+    pmaddubsw   xmm2, xmm6
+
+    lea         rsi,    [rsi + rax]
+;--
+    paddsw      xmm1, xmm7
+    paddsw      xmm1, xmm2
+    psraw       xmm1, 7
+    packuswb    xmm1, xmm1
+
+    movd        DWORD PTR [rdi], xmm1
+
+    add         rdi, rdx
+    dec         rcx
+    jnz         .filter_block1d4_h4_rowloop_ssse3
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+
+;void vp8_filter_block1d16_v6_ssse3
+;(
+;    unsigned char *src_ptr,
+;    unsigned int   src_pitch,
+;    unsigned char *output_ptr,
+;    unsigned int   out_pitch,
+;    unsigned int   output_height,
+;    unsigned int   vp8_filter_index
+;)
+global sym(vp8_filter_block1d16_v6_ssse3) PRIVATE
+sym(vp8_filter_block1d16_v6_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movsxd      rdx, DWORD PTR arg(5)   ;table index
+    xor         rsi, rsi
+    shl         rdx, 4      ;
+
+    lea         rax, [GLOBAL(k0_k5)]
+    add         rax, rdx
+
+    cmp         esi, DWORD PTR [rax]
+    je          .vp8_filter_block1d16_v4_ssse3
+
+    movdqa      xmm5, XMMWORD PTR [rax]         ;k0_k5
+    movdqa      xmm6, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm7, XMMWORD PTR [rax+128]     ;k1_k3
+
+    mov         rsi, arg(0)             ;src_ptr
+    movsxd      rdx, DWORD PTR arg(1)   ;pixels_per_line
+    mov         rdi, arg(2)             ;output_ptr
+
+%if ABI_IS_32BIT=0
+    movsxd      r8, DWORD PTR arg(3)    ;out_pitch
+%endif
+    mov         rax, rsi
+    movsxd      rcx, DWORD PTR arg(4)   ;output_height
+    add         rax, rdx
+
+
+.vp8_filter_block1d16_v6_ssse3_loop:
+    movq        xmm1, MMWORD PTR [rsi]                  ;A
+    movq        xmm2, MMWORD PTR [rsi + rdx]            ;B
+    movq        xmm3, MMWORD PTR [rsi + rdx * 2]        ;C
+    movq        xmm4, MMWORD PTR [rax + rdx * 2]        ;D
+    movq        xmm0, MMWORD PTR [rsi + rdx * 4]        ;E
+
+    punpcklbw   xmm2, xmm4                  ;B D
+    punpcklbw   xmm3, xmm0                  ;C E
+
+    movq        xmm0, MMWORD PTR [rax + rdx * 4]        ;F
+
+    pmaddubsw   xmm3, xmm6
+    punpcklbw   xmm1, xmm0                  ;A F
+    pmaddubsw   xmm2, xmm7
+    pmaddubsw   xmm1, xmm5
+
+    paddsw      xmm2, xmm3
+    paddsw      xmm2, xmm1
+    paddsw      xmm2, [GLOBAL(rd)]
+    psraw       xmm2, 7
+    packuswb    xmm2, xmm2
+
+    movq        MMWORD PTR [rdi], xmm2          ;store the results
+
+    movq        xmm1, MMWORD PTR [rsi + 8]                  ;A
+    movq        xmm2, MMWORD PTR [rsi + rdx + 8]            ;B
+    movq        xmm3, MMWORD PTR [rsi + rdx * 2 + 8]        ;C
+    movq        xmm4, MMWORD PTR [rax + rdx * 2 + 8]        ;D
+    movq        xmm0, MMWORD PTR [rsi + rdx * 4 + 8]        ;E
+
+    punpcklbw   xmm2, xmm4                  ;B D
+    punpcklbw   xmm3, xmm0                  ;C E
+
+    movq        xmm0, MMWORD PTR [rax + rdx * 4 + 8]        ;F
+    pmaddubsw   xmm3, xmm6
+    punpcklbw   xmm1, xmm0                  ;A F
+    pmaddubsw   xmm2, xmm7
+    pmaddubsw   xmm1, xmm5
+
+    add         rsi,  rdx
+    add         rax,  rdx
+;--
+;--
+    paddsw      xmm2, xmm3
+    paddsw      xmm2, xmm1
+    paddsw      xmm2, [GLOBAL(rd)]
+    psraw       xmm2, 7
+    packuswb    xmm2, xmm2
+
+    movq        MMWORD PTR [rdi+8], xmm2
+
+%if ABI_IS_32BIT
+    add         rdi,        DWORD PTR arg(3) ;out_pitch
+%else
+    add         rdi,        r8
+%endif
+    dec         rcx
+    jnz         .vp8_filter_block1d16_v6_ssse3_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+.vp8_filter_block1d16_v4_ssse3:
+    movdqa      xmm6, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm7, XMMWORD PTR [rax+128]     ;k1_k3
+
+    mov         rsi, arg(0)             ;src_ptr
+    movsxd      rdx, DWORD PTR arg(1)   ;pixels_per_line
+    mov         rdi, arg(2)             ;output_ptr
+
+%if ABI_IS_32BIT=0
+    movsxd      r8, DWORD PTR arg(3)    ;out_pitch
+%endif
+    mov         rax, rsi
+    movsxd      rcx, DWORD PTR arg(4)   ;output_height
+    add         rax, rdx
+
+.vp8_filter_block1d16_v4_ssse3_loop:
+    movq        xmm2, MMWORD PTR [rsi + rdx]            ;B
+    movq        xmm3, MMWORD PTR [rsi + rdx * 2]        ;C
+    movq        xmm4, MMWORD PTR [rax + rdx * 2]        ;D
+    movq        xmm0, MMWORD PTR [rsi + rdx * 4]        ;E
+
+    punpcklbw   xmm2, xmm4                  ;B D
+    punpcklbw   xmm3, xmm0                  ;C E
+
+    pmaddubsw   xmm3, xmm6
+    pmaddubsw   xmm2, xmm7
+    movq        xmm5, MMWORD PTR [rsi + rdx + 8]            ;B
+    movq        xmm1, MMWORD PTR [rsi + rdx * 2 + 8]        ;C
+    movq        xmm4, MMWORD PTR [rax + rdx * 2 + 8]        ;D
+    movq        xmm0, MMWORD PTR [rsi + rdx * 4 + 8]        ;E
+
+    paddsw      xmm2, [GLOBAL(rd)]
+    paddsw      xmm2, xmm3
+    psraw       xmm2, 7
+    packuswb    xmm2, xmm2
+
+    punpcklbw   xmm5, xmm4                  ;B D
+    punpcklbw   xmm1, xmm0                  ;C E
+
+    pmaddubsw   xmm1, xmm6
+    pmaddubsw   xmm5, xmm7
+
+    movdqa      xmm4, [GLOBAL(rd)]
+    add         rsi,  rdx
+    add         rax,  rdx
+;--
+;--
+    paddsw      xmm5, xmm1
+    paddsw      xmm5, xmm4
+    psraw       xmm5, 7
+    packuswb    xmm5, xmm5
+
+    punpcklqdq  xmm2, xmm5
+
+    movdqa       XMMWORD PTR [rdi], xmm2
+
+%if ABI_IS_32BIT
+    add         rdi,        DWORD PTR arg(3) ;out_pitch
+%else
+    add         rdi,        r8
+%endif
+    dec         rcx
+    jnz         .vp8_filter_block1d16_v4_ssse3_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_filter_block1d8_v6_ssse3
+;(
+;    unsigned char *src_ptr,
+;    unsigned int   src_pitch,
+;    unsigned char *output_ptr,
+;    unsigned int   out_pitch,
+;    unsigned int   output_height,
+;    unsigned int   vp8_filter_index
+;)
+global sym(vp8_filter_block1d8_v6_ssse3) PRIVATE
+sym(vp8_filter_block1d8_v6_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movsxd      rdx, DWORD PTR arg(5)   ;table index
+    xor         rsi, rsi
+    shl         rdx, 4      ;
+
+    lea         rax, [GLOBAL(k0_k5)]
+    add         rax, rdx
+
+    movsxd      rdx, DWORD PTR arg(1)   ;pixels_per_line
+    mov         rdi, arg(2)             ;output_ptr
+%if ABI_IS_32BIT=0
+    movsxd      r8, DWORD PTR arg(3)    ; out_pitch
+%endif
+    movsxd      rcx, DWORD PTR arg(4)   ;[output_height]
+
+    cmp         esi, DWORD PTR [rax]
+    je          .vp8_filter_block1d8_v4_ssse3
+
+    movdqa      xmm5, XMMWORD PTR [rax]         ;k0_k5
+    movdqa      xmm6, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm7, XMMWORD PTR [rax+128]     ;k1_k3
+
+    mov         rsi, arg(0)             ;src_ptr
+
+    mov         rax, rsi
+    add         rax, rdx
+
+.vp8_filter_block1d8_v6_ssse3_loop:
+    movq        xmm1, MMWORD PTR [rsi]                  ;A
+    movq        xmm2, MMWORD PTR [rsi + rdx]            ;B
+    movq        xmm3, MMWORD PTR [rsi + rdx * 2]        ;C
+    movq        xmm4, MMWORD PTR [rax + rdx * 2]        ;D
+    movq        xmm0, MMWORD PTR [rsi + rdx * 4]        ;E
+
+    punpcklbw   xmm2, xmm4                  ;B D
+    punpcklbw   xmm3, xmm0                  ;C E
+
+    movq        xmm0, MMWORD PTR [rax + rdx * 4]        ;F
+    movdqa      xmm4, [GLOBAL(rd)]
+
+    pmaddubsw   xmm3, xmm6
+    punpcklbw   xmm1, xmm0                  ;A F
+    pmaddubsw   xmm2, xmm7
+    pmaddubsw   xmm1, xmm5
+    add         rsi,  rdx
+    add         rax,  rdx
+;--
+;--
+    paddsw      xmm2, xmm3
+    paddsw      xmm2, xmm1
+    paddsw      xmm2, xmm4
+    psraw       xmm2, 7
+    packuswb    xmm2, xmm2
+
+    movq        MMWORD PTR [rdi], xmm2
+
+%if ABI_IS_32BIT
+    add         rdi,        DWORD PTR arg(3) ;[out_pitch]
+%else
+    add         rdi,        r8
+%endif
+    dec         rcx
+    jnz         .vp8_filter_block1d8_v6_ssse3_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+.vp8_filter_block1d8_v4_ssse3:
+    movdqa      xmm6, XMMWORD PTR [rax+256]     ;k2_k4
+    movdqa      xmm7, XMMWORD PTR [rax+128]     ;k1_k3
+    movdqa      xmm5, [GLOBAL(rd)]
+
+    mov         rsi, arg(0)             ;src_ptr
+
+    mov         rax, rsi
+    add         rax, rdx
+
+.vp8_filter_block1d8_v4_ssse3_loop:
+    movq        xmm2, MMWORD PTR [rsi + rdx]            ;B
+    movq        xmm3, MMWORD PTR [rsi + rdx * 2]        ;C
+    movq        xmm4, MMWORD PTR [rax + rdx * 2]        ;D
+    movq        xmm0, MMWORD PTR [rsi + rdx * 4]        ;E
+
+    punpcklbw   xmm2, xmm4                  ;B D
+    punpcklbw   xmm3, xmm0                  ;C E
+
+    pmaddubsw   xmm3, xmm6
+    pmaddubsw   xmm2, xmm7
+    add         rsi,  rdx
+    add         rax,  rdx
+;--
+;--
+    paddsw      xmm2, xmm3
+    paddsw      xmm2, xmm5
+    psraw       xmm2, 7
+    packuswb    xmm2, xmm2
+
+    movq        MMWORD PTR [rdi], xmm2
+
+%if ABI_IS_32BIT
+    add         rdi,        DWORD PTR arg(3) ;[out_pitch]
+%else
+    add         rdi,        r8
+%endif
+    dec         rcx
+    jnz         .vp8_filter_block1d8_v4_ssse3_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+;void vp8_filter_block1d4_v6_ssse3
+;(
+;    unsigned char *src_ptr,
+;    unsigned int   src_pitch,
+;    unsigned char *output_ptr,
+;    unsigned int   out_pitch,
+;    unsigned int   output_height,
+;    unsigned int   vp8_filter_index
+;)
+global sym(vp8_filter_block1d4_v6_ssse3) PRIVATE
+sym(vp8_filter_block1d4_v6_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    movsxd      rdx, DWORD PTR arg(5)   ;table index
+    xor         rsi, rsi
+    shl         rdx, 4      ;
+
+    lea         rax, [GLOBAL(k0_k5)]
+    add         rax, rdx
+
+    movsxd      rdx, DWORD PTR arg(1)   ;pixels_per_line
+    mov         rdi, arg(2)             ;output_ptr
+%if ABI_IS_32BIT=0
+    movsxd      r8, DWORD PTR arg(3)    ; out_pitch
+%endif
+    movsxd      rcx, DWORD PTR arg(4)   ;[output_height]
+
+    cmp         esi, DWORD PTR [rax]
+    je          .vp8_filter_block1d4_v4_ssse3
+
+    movq        mm5, MMWORD PTR [rax]         ;k0_k5
+    movq        mm6, MMWORD PTR [rax+256]     ;k2_k4
+    movq        mm7, MMWORD PTR [rax+128]     ;k1_k3
+
+    mov         rsi, arg(0)             ;src_ptr
+
+    mov         rax, rsi
+    add         rax, rdx
+
+.vp8_filter_block1d4_v6_ssse3_loop:
+    movd        mm1, DWORD PTR [rsi]                  ;A
+    movd        mm2, DWORD PTR [rsi + rdx]            ;B
+    movd        mm3, DWORD PTR [rsi + rdx * 2]        ;C
+    movd        mm4, DWORD PTR [rax + rdx * 2]        ;D
+    movd        mm0, DWORD PTR [rsi + rdx * 4]        ;E
+
+    punpcklbw   mm2, mm4                  ;B D
+    punpcklbw   mm3, mm0                  ;C E
+
+    movd        mm0, DWORD PTR [rax + rdx * 4]        ;F
+
+    movq        mm4, [GLOBAL(rd)]
+
+    pmaddubsw   mm3, mm6
+    punpcklbw   mm1, mm0                  ;A F
+    pmaddubsw   mm2, mm7
+    pmaddubsw   mm1, mm5
+    add         rsi,  rdx
+    add         rax,  rdx
+;--
+;--
+    paddsw      mm2, mm3
+    paddsw      mm2, mm1
+    paddsw      mm2, mm4
+    psraw       mm2, 7
+    packuswb    mm2, mm2
+
+    movd        DWORD PTR [rdi], mm2
+
+%if ABI_IS_32BIT
+    add         rdi,        DWORD PTR arg(3) ;[out_pitch]
+%else
+    add         rdi,        r8
+%endif
+    dec         rcx
+    jnz         .vp8_filter_block1d4_v6_ssse3_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+.vp8_filter_block1d4_v4_ssse3:
+    movq        mm6, MMWORD PTR [rax+256]     ;k2_k4
+    movq        mm7, MMWORD PTR [rax+128]     ;k1_k3
+    movq        mm5, MMWORD PTR [GLOBAL(rd)]
+
+    mov         rsi, arg(0)             ;src_ptr
+
+    mov         rax, rsi
+    add         rax, rdx
+
+.vp8_filter_block1d4_v4_ssse3_loop:
+    movd        mm2, DWORD PTR [rsi + rdx]            ;B
+    movd        mm3, DWORD PTR [rsi + rdx * 2]        ;C
+    movd        mm4, DWORD PTR [rax + rdx * 2]        ;D
+    movd        mm0, DWORD PTR [rsi + rdx * 4]        ;E
+
+    punpcklbw   mm2, mm4                  ;B D
+    punpcklbw   mm3, mm0                  ;C E
+
+    pmaddubsw   mm3, mm6
+    pmaddubsw   mm2, mm7
+    add         rsi,  rdx
+    add         rax,  rdx
+;--
+;--
+    paddsw      mm2, mm3
+    paddsw      mm2, mm5
+    psraw       mm2, 7
+    packuswb    mm2, mm2
+
+    movd        DWORD PTR [rdi], mm2
+
+%if ABI_IS_32BIT
+    add         rdi,        DWORD PTR arg(3) ;[out_pitch]
+%else
+    add         rdi,        r8
+%endif
+    dec         rcx
+    jnz         .vp8_filter_block1d4_v4_ssse3_loop
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_bilinear_predict16x16_ssse3
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;    unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+global sym(vp8_bilinear_predict16x16_ssse3) PRIVATE
+sym(vp8_bilinear_predict16x16_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        lea         rcx,        [GLOBAL(vp8_bilinear_filters_ssse3)]
+        movsxd      rax,        dword ptr arg(2)    ; xoffset
+
+        cmp         rax,        0                   ; skip first_pass filter if xoffset=0
+        je          .b16x16_sp_only
+
+        shl         rax,        4
+        lea         rax,        [rax + rcx]         ; HFilter
+
+        mov         rdi,        arg(4)              ; dst_ptr
+        mov         rsi,        arg(0)              ; src_ptr
+        movsxd      rdx,        dword ptr arg(5)    ; dst_pitch
+
+        movdqa      xmm1,       [rax]
+
+        movsxd      rax,        dword ptr arg(3)    ; yoffset
+
+        cmp         rax,        0                   ; skip second_pass filter if yoffset=0
+        je          .b16x16_fp_only
+
+        shl         rax,        4
+        lea         rax,        [rax + rcx]         ; VFilter
+
+        lea         rcx,        [rdi+rdx*8]
+        lea         rcx,        [rcx+rdx*8]
+        movsxd      rdx,        dword ptr arg(1)    ; src_pixels_per_line
+
+        movdqa      xmm2,       [rax]
+
+%if ABI_IS_32BIT=0
+        movsxd      r8,         dword ptr arg(5)    ; dst_pitch
+%endif
+        movq        xmm3,       [rsi]               ; 00 01 02 03 04 05 06 07
+        movq        xmm5,       [rsi+1]             ; 01 02 03 04 05 06 07 08
+
+        punpcklbw   xmm3,       xmm5                ; 00 01 01 02 02 03 03 04 04 05 05 06 06 07 07 08
+        movq        xmm4,       [rsi+8]             ; 08 09 10 11 12 13 14 15
+
+        movq        xmm5,       [rsi+9]             ; 09 10 11 12 13 14 15 16
+
+        lea         rsi,        [rsi + rdx]         ; next line
+
+        pmaddubsw   xmm3,       xmm1                ; 00 02 04 06 08 10 12 14
+
+        punpcklbw   xmm4,       xmm5                ; 08 09 09 10 10 11 11 12 12 13 13 14 14 15 15 16
+        pmaddubsw   xmm4,       xmm1                ; 01 03 05 07 09 11 13 15
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT    ; xmm3 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]        ; xmm4 += round value
+        psraw       xmm4,       VP8_FILTER_SHIFT    ; xmm4 /= 128
+
+        movdqa      xmm7,       xmm3
+        packuswb    xmm7,       xmm4                ; 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
+
+.next_row:
+        movq        xmm6,       [rsi]               ; 00 01 02 03 04 05 06 07
+        movq        xmm5,       [rsi+1]             ; 01 02 03 04 05 06 07 08
+
+        punpcklbw   xmm6,       xmm5
+        movq        xmm4,       [rsi+8]             ; 08 09 10 11 12 13 14 15
+
+        movq        xmm5,       [rsi+9]             ; 09 10 11 12 13 14 15 16
+        lea         rsi,        [rsi + rdx]         ; next line
+
+        pmaddubsw   xmm6,       xmm1
+
+        punpcklbw   xmm4,       xmm5
+        pmaddubsw   xmm4,       xmm1
+
+        paddw       xmm6,       [GLOBAL(rd)]        ; xmm6 += round value
+        psraw       xmm6,       VP8_FILTER_SHIFT    ; xmm6 /= 128
+
+        paddw       xmm4,       [GLOBAL(rd)]        ; xmm4 += round value
+        psraw       xmm4,       VP8_FILTER_SHIFT    ; xmm4 /= 128
+
+        packuswb    xmm6,       xmm4
+        movdqa      xmm5,       xmm7
+
+        punpcklbw   xmm5,       xmm6
+        pmaddubsw   xmm5,       xmm2
+
+        punpckhbw   xmm7,       xmm6
+        pmaddubsw   xmm7,       xmm2
+
+        paddw       xmm5,       [GLOBAL(rd)]        ; xmm5 += round value
+        psraw       xmm5,       VP8_FILTER_SHIFT    ; xmm5 /= 128
+
+        paddw       xmm7,       [GLOBAL(rd)]        ; xmm7 += round value
+        psraw       xmm7,       VP8_FILTER_SHIFT    ; xmm7 /= 128
+
+        packuswb    xmm5,       xmm7
+        movdqa      xmm7,       xmm6
+
+        movdqa      [rdi],      xmm5                ; store the results in the destination
+%if ABI_IS_32BIT
+        add         rdi,        DWORD PTR arg(5)    ; dst_pitch
+%else
+        add         rdi,        r8
+%endif
+
+        cmp         rdi,        rcx
+        jne         .next_row
+
+        jmp         .done
+
+.b16x16_sp_only:
+        movsxd      rax,        dword ptr arg(3)    ; yoffset
+        shl         rax,        4
+        lea         rax,        [rax + rcx]         ; VFilter
+
+        mov         rdi,        arg(4)              ; dst_ptr
+        mov         rsi,        arg(0)              ; src_ptr
+        movsxd      rdx,        dword ptr arg(5)    ; dst_pitch
+
+        movdqa      xmm1,       [rax]               ; VFilter
+
+        lea         rcx,        [rdi+rdx*8]
+        lea         rcx,        [rcx+rdx*8]
+        movsxd      rax,        dword ptr arg(1)    ; src_pixels_per_line
+
+        ; get the first horizontal line done
+        movq        xmm4,       [rsi]               ; load row 0
+        movq        xmm2,       [rsi + 8]           ; load row 0
+
+        lea         rsi,        [rsi + rax]         ; next line
+.next_row_sp:
+        movq        xmm3,       [rsi]               ; load row + 1
+        movq        xmm5,       [rsi + 8]           ; load row + 1
+
+        punpcklbw   xmm4,       xmm3
+        punpcklbw   xmm2,       xmm5
+
+        pmaddubsw   xmm4,       xmm1
+        movq        xmm7,       [rsi + rax]         ; load row + 2
+
+        pmaddubsw   xmm2,       xmm1
+        movq        xmm6,       [rsi + rax + 8]     ; load row + 2
+
+        punpcklbw   xmm3,       xmm7
+        punpcklbw   xmm5,       xmm6
+
+        pmaddubsw   xmm3,       xmm1
+        paddw       xmm4,       [GLOBAL(rd)]
+
+        pmaddubsw   xmm5,       xmm1
+        paddw       xmm2,       [GLOBAL(rd)]
+
+        psraw       xmm4,       VP8_FILTER_SHIFT
+        psraw       xmm2,       VP8_FILTER_SHIFT
+
+        packuswb    xmm4,       xmm2
+        paddw       xmm3,       [GLOBAL(rd)]
+
+        movdqa      [rdi],      xmm4                ; store row 0
+        paddw       xmm5,       [GLOBAL(rd)]
+
+        psraw       xmm3,       VP8_FILTER_SHIFT
+        psraw       xmm5,       VP8_FILTER_SHIFT
+
+        packuswb    xmm3,       xmm5
+        movdqa      xmm4,       xmm7
+
+        movdqa      [rdi + rdx],xmm3                ; store row 1
+        lea         rsi,        [rsi + 2*rax]
+
+        movdqa      xmm2,       xmm6
+        lea         rdi,        [rdi + 2*rdx]
+
+        cmp         rdi,        rcx
+        jne         .next_row_sp
+
+        jmp         .done
+
+.b16x16_fp_only:
+        lea         rcx,        [rdi+rdx*8]
+        lea         rcx,        [rcx+rdx*8]
+        movsxd      rax,        dword ptr arg(1)    ; src_pixels_per_line
+
+.next_row_fp:
+        movq        xmm2,       [rsi]               ; 00 01 02 03 04 05 06 07
+        movq        xmm4,       [rsi+1]             ; 01 02 03 04 05 06 07 08
+
+        punpcklbw   xmm2,       xmm4
+        movq        xmm3,       [rsi+8]             ; 08 09 10 11 12 13 14 15
+
+        pmaddubsw   xmm2,       xmm1
+        movq        xmm4,       [rsi+9]             ; 09 10 11 12 13 14 15 16
+
+        lea         rsi,        [rsi + rax]         ; next line
+        punpcklbw   xmm3,       xmm4
+
+        pmaddubsw   xmm3,       xmm1
+        movq        xmm5,       [rsi]
+
+        paddw       xmm2,       [GLOBAL(rd)]
+        movq        xmm7,       [rsi+1]
+
+        movq        xmm6,       [rsi+8]
+        psraw       xmm2,       VP8_FILTER_SHIFT
+
+        punpcklbw   xmm5,       xmm7
+        movq        xmm7,       [rsi+9]
+
+        paddw       xmm3,       [GLOBAL(rd)]
+        pmaddubsw   xmm5,       xmm1
+
+        psraw       xmm3,       VP8_FILTER_SHIFT
+        punpcklbw   xmm6,       xmm7
+
+        packuswb    xmm2,       xmm3
+        pmaddubsw   xmm6,       xmm1
+
+        movdqa      [rdi],      xmm2                ; store the results in the destination
+        paddw       xmm5,       [GLOBAL(rd)]
+
+        lea         rdi,        [rdi + rdx]         ; dst_pitch
+        psraw       xmm5,       VP8_FILTER_SHIFT
+
+        paddw       xmm6,       [GLOBAL(rd)]
+        psraw       xmm6,       VP8_FILTER_SHIFT
+
+        packuswb    xmm5,       xmm6
+        lea         rsi,        [rsi + rax]         ; next line
+
+        movdqa      [rdi],      xmm5                ; store the results in the destination
+        lea         rdi,        [rdi + rdx]         ; dst_pitch
+
+        cmp         rdi,        rcx
+
+        jne         .next_row_fp
+
+.done:
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_bilinear_predict8x8_ssse3
+;(
+;    unsigned char  *src_ptr,
+;    int   src_pixels_per_line,
+;    int  xoffset,
+;    int  yoffset,
+;    unsigned char *dst_ptr,
+;    int dst_pitch
+;)
+global sym(vp8_bilinear_predict8x8_ssse3) PRIVATE
+sym(vp8_bilinear_predict8x8_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 6
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    ALIGN_STACK 16, rax
+    sub         rsp, 144                         ; reserve 144 bytes
+
+        lea         rcx,        [GLOBAL(vp8_bilinear_filters_ssse3)]
+
+        mov         rsi,        arg(0) ;src_ptr
+        movsxd      rdx,        dword ptr arg(1) ;src_pixels_per_line
+
+    ;Read 9-line unaligned data in and put them on stack. This gives a big
+    ;performance boost.
+        movdqu      xmm0,       [rsi]
+        lea         rax,        [rdx + rdx*2]
+        movdqu      xmm1,       [rsi+rdx]
+        movdqu      xmm2,       [rsi+rdx*2]
+        add         rsi,        rax
+        movdqu      xmm3,       [rsi]
+        movdqu      xmm4,       [rsi+rdx]
+        movdqu      xmm5,       [rsi+rdx*2]
+        add         rsi,        rax
+        movdqu      xmm6,       [rsi]
+        movdqu      xmm7,       [rsi+rdx]
+
+        movdqa      XMMWORD PTR [rsp],            xmm0
+
+        movdqu      xmm0,       [rsi+rdx*2]
+
+        movdqa      XMMWORD PTR [rsp+16],         xmm1
+        movdqa      XMMWORD PTR [rsp+32],         xmm2
+        movdqa      XMMWORD PTR [rsp+48],         xmm3
+        movdqa      XMMWORD PTR [rsp+64],         xmm4
+        movdqa      XMMWORD PTR [rsp+80],         xmm5
+        movdqa      XMMWORD PTR [rsp+96],         xmm6
+        movdqa      XMMWORD PTR [rsp+112],        xmm7
+        movdqa      XMMWORD PTR [rsp+128],        xmm0
+
+        movsxd      rax,        dword ptr arg(2)    ; xoffset
+        cmp         rax,        0                   ; skip first_pass filter if xoffset=0
+        je          .b8x8_sp_only
+
+        shl         rax,        4
+        add         rax,        rcx                 ; HFilter
+
+        mov         rdi,        arg(4)              ; dst_ptr
+        movsxd      rdx,        dword ptr arg(5)    ; dst_pitch
+
+        movdqa      xmm0,       [rax]
+
+        movsxd      rax,        dword ptr arg(3)    ; yoffset
+        cmp         rax,        0                   ; skip second_pass filter if yoffset=0
+        je          .b8x8_fp_only
+
+        shl         rax,        4
+        lea         rax,        [rax + rcx]         ; VFilter
+
+        lea         rcx,        [rdi+rdx*8]
+
+        movdqa      xmm1,       [rax]
+
+        ; get the first horizontal line done
+        movdqa      xmm3,       [rsp]               ; 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
+        movdqa      xmm5,       xmm3                ; 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 xx
+
+        psrldq      xmm5,       1
+        lea         rsp,        [rsp + 16]          ; next line
+
+        punpcklbw   xmm3,       xmm5                ; 00 01 01 02 02 03 03 04 04 05 05 06 06 07 07 08
+        pmaddubsw   xmm3,       xmm0                ; 00 02 04 06 08 10 12 14
+
+        paddw       xmm3,       [GLOBAL(rd)]        ; xmm3 += round value
+        psraw       xmm3,       VP8_FILTER_SHIFT    ; xmm3 /= 128
+
+        movdqa      xmm7,       xmm3
+        packuswb    xmm7,       xmm7                ; 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
+
+.next_row:
+        movdqa      xmm6,       [rsp]               ; 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
+        lea         rsp,        [rsp + 16]          ; next line
+
+        movdqa      xmm5,       xmm6
+
+        psrldq      xmm5,       1
+
+        punpcklbw   xmm6,       xmm5
+        pmaddubsw   xmm6,       xmm0
+
+        paddw       xmm6,       [GLOBAL(rd)]        ; xmm6 += round value
+        psraw       xmm6,       VP8_FILTER_SHIFT    ; xmm6 /= 128
+
+        packuswb    xmm6,       xmm6
+
+        punpcklbw   xmm7,       xmm6
+        pmaddubsw   xmm7,       xmm1
+
+        paddw       xmm7,       [GLOBAL(rd)]        ; xmm7 += round value
+        psraw       xmm7,       VP8_FILTER_SHIFT    ; xmm7 /= 128
+
+        packuswb    xmm7,       xmm7
+
+        movq        [rdi],      xmm7                ; store the results in the destination
+        lea         rdi,        [rdi + rdx]
+
+        movdqa      xmm7,       xmm6
+
+        cmp         rdi,        rcx
+        jne         .next_row
+
+        jmp         .done8x8
+
+.b8x8_sp_only:
+        movsxd      rax,        dword ptr arg(3)    ; yoffset
+        shl         rax,        4
+        lea         rax,        [rax + rcx]         ; VFilter
+
+        mov         rdi,        arg(4) ;dst_ptr
+        movsxd      rdx,        dword ptr arg(5)    ; dst_pitch
+
+        movdqa      xmm0,       [rax]               ; VFilter
+
+        movq        xmm1,       XMMWORD PTR [rsp]
+        movq        xmm2,       XMMWORD PTR [rsp+16]
+
+        movq        xmm3,       XMMWORD PTR [rsp+32]
+        punpcklbw   xmm1,       xmm2
+
+        movq        xmm4,       XMMWORD PTR [rsp+48]
+        punpcklbw   xmm2,       xmm3
+
+        movq        xmm5,       XMMWORD PTR [rsp+64]
+        punpcklbw   xmm3,       xmm4
+
+        movq        xmm6,       XMMWORD PTR [rsp+80]
+        punpcklbw   xmm4,       xmm5
+
+        movq        xmm7,       XMMWORD PTR [rsp+96]
+        punpcklbw   xmm5,       xmm6
+
+        pmaddubsw   xmm1,       xmm0
+        pmaddubsw   xmm2,       xmm0
+
+        pmaddubsw   xmm3,       xmm0
+        pmaddubsw   xmm4,       xmm0
+
+        pmaddubsw   xmm5,       xmm0
+        punpcklbw   xmm6,       xmm7
+
+        pmaddubsw   xmm6,       xmm0
+        paddw       xmm1,       [GLOBAL(rd)]
+
+        paddw       xmm2,       [GLOBAL(rd)]
+        psraw       xmm1,       VP8_FILTER_SHIFT
+
+        paddw       xmm3,       [GLOBAL(rd)]
+        psraw       xmm2,       VP8_FILTER_SHIFT
+
+        paddw       xmm4,       [GLOBAL(rd)]
+        psraw       xmm3,       VP8_FILTER_SHIFT
+
+        paddw       xmm5,       [GLOBAL(rd)]
+        psraw       xmm4,       VP8_FILTER_SHIFT
+
+        paddw       xmm6,       [GLOBAL(rd)]
+        psraw       xmm5,       VP8_FILTER_SHIFT
+
+        psraw       xmm6,       VP8_FILTER_SHIFT
+        packuswb    xmm1,       xmm1
+
+        packuswb    xmm2,       xmm2
+        movq        [rdi],      xmm1
+
+        packuswb    xmm3,       xmm3
+        movq        [rdi+rdx],  xmm2
+
+        packuswb    xmm4,       xmm4
+        movq        xmm1,       XMMWORD PTR [rsp+112]
+
+        lea         rdi,        [rdi + 2*rdx]
+        movq        xmm2,       XMMWORD PTR [rsp+128]
+
+        packuswb    xmm5,       xmm5
+        movq        [rdi],      xmm3
+
+        packuswb    xmm6,       xmm6
+        movq        [rdi+rdx],  xmm4
+
+        lea         rdi,        [rdi + 2*rdx]
+        punpcklbw   xmm7,       xmm1
+
+        movq        [rdi],      xmm5
+        pmaddubsw   xmm7,       xmm0
+
+        movq        [rdi+rdx],  xmm6
+        punpcklbw   xmm1,       xmm2
+
+        pmaddubsw   xmm1,       xmm0
+        paddw       xmm7,       [GLOBAL(rd)]
+
+        psraw       xmm7,       VP8_FILTER_SHIFT
+        paddw       xmm1,       [GLOBAL(rd)]
+
+        psraw       xmm1,       VP8_FILTER_SHIFT
+        packuswb    xmm7,       xmm7
+
+        packuswb    xmm1,       xmm1
+        lea         rdi,        [rdi + 2*rdx]
+
+        movq        [rdi],      xmm7
+
+        movq        [rdi+rdx],  xmm1
+        lea         rsp,        [rsp + 144]
+
+        jmp         .done8x8
+
+.b8x8_fp_only:
+        lea         rcx,        [rdi+rdx*8]
+
+.next_row_fp:
+        movdqa      xmm1,       XMMWORD PTR [rsp]
+        movdqa      xmm3,       XMMWORD PTR [rsp+16]
+
+        movdqa      xmm2,       xmm1
+        movdqa      xmm5,       XMMWORD PTR [rsp+32]
+
+        psrldq      xmm2,       1
+        movdqa      xmm7,       XMMWORD PTR [rsp+48]
+
+        movdqa      xmm4,       xmm3
+        psrldq      xmm4,       1
+
+        movdqa      xmm6,       xmm5
+        psrldq      xmm6,       1
+
+        punpcklbw   xmm1,       xmm2
+        pmaddubsw   xmm1,       xmm0
+
+        punpcklbw   xmm3,       xmm4
+        pmaddubsw   xmm3,       xmm0
+
+        punpcklbw   xmm5,       xmm6
+        pmaddubsw   xmm5,       xmm0
+
+        movdqa      xmm2,       xmm7
+        psrldq      xmm2,       1
+
+        punpcklbw   xmm7,       xmm2
+        pmaddubsw   xmm7,       xmm0
+
+        paddw       xmm1,       [GLOBAL(rd)]
+        psraw       xmm1,       VP8_FILTER_SHIFT
+
+        paddw       xmm3,       [GLOBAL(rd)]
+        psraw       xmm3,       VP8_FILTER_SHIFT
+
+        paddw       xmm5,       [GLOBAL(rd)]
+        psraw       xmm5,       VP8_FILTER_SHIFT
+
+        paddw       xmm7,       [GLOBAL(rd)]
+        psraw       xmm7,       VP8_FILTER_SHIFT
+
+        packuswb    xmm1,       xmm1
+        packuswb    xmm3,       xmm3
+
+        packuswb    xmm5,       xmm5
+        movq        [rdi],      xmm1
+
+        packuswb    xmm7,       xmm7
+        movq        [rdi+rdx],  xmm3
+
+        lea         rdi,        [rdi + 2*rdx]
+        movq        [rdi],      xmm5
+
+        lea         rsp,        [rsp + 4*16]
+        movq        [rdi+rdx],  xmm7
+
+        lea         rdi,        [rdi + 2*rdx]
+        cmp         rdi,        rcx
+
+        jne         .next_row_fp
+
+        lea         rsp,        [rsp + 16]
+
+.done8x8:
+    ;add rsp, 144
+    pop         rsp
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+shuf1b:
+    db 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 5, 10, 6, 11, 7, 12
+shuf2b:
+    db 2, 4, 3, 5, 4, 6, 5, 7, 6, 8, 7, 9, 8, 10, 9, 11
+shuf3b:
+    db 1, 3, 2, 4, 3, 5, 4, 6, 5, 7, 6, 8, 7, 9, 8, 10
+
+align 16
+shuf2bfrom1:
+    db  4, 8, 6, 1, 8, 3, 1, 5, 3, 7, 5, 9, 7,11, 9,13
+align 16
+shuf3bfrom1:
+    db  2, 6, 4, 8, 6, 1, 8, 3, 1, 5, 3, 7, 5, 9, 7,11
+
+align 16
+rd:
+    times 8 dw 0x40
+
+align 16
+k0_k5:
+    times 8 db 0, 0             ;placeholder
+    times 8 db 0, 0
+    times 8 db 2, 1
+    times 8 db 0, 0
+    times 8 db 3, 3
+    times 8 db 0, 0
+    times 8 db 1, 2
+    times 8 db 0, 0
+k1_k3:
+    times 8 db  0,    0         ;placeholder
+    times 8 db  -6,  12
+    times 8 db -11,  36
+    times 8 db  -9,  50
+    times 8 db -16,  77
+    times 8 db  -6,  93
+    times 8 db  -8, 108
+    times 8 db  -1, 123
+k2_k4:
+    times 8 db 128,    0        ;placeholder
+    times 8 db 123,   -1
+    times 8 db 108,   -8
+    times 8 db  93,   -6
+    times 8 db  77,  -16
+    times 8 db  50,   -9
+    times 8 db  36,  -11
+    times 8 db  12,   -6
+align 16
+vp8_bilinear_filters_ssse3:
+    times 8 db 128, 0
+    times 8 db 112, 16
+    times 8 db 96,  32
+    times 8 db 80,  48
+    times 8 db 64,  64
+    times 8 db 48,  80
+    times 8 db 32,  96
+    times 8 db 16,  112
+
diff --git a/media/libvpx/vp8/common/x86/variance_impl_sse2.asm b/media/libvpx/vp8/common/x86/variance_impl_sse2.asm
new file mode 100644
index 000000000..26de5e860
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/variance_impl_sse2.asm
@@ -0,0 +1,972 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%define xmm_filter_shift            7
+
+;void vp8_filter_block2d_bil_var_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int  xoffset,
+;    int  yoffset,
+;    int *sum,
+;    unsigned int *sumsquared;;
+;
+;)
+global sym(vp8_filter_block2d_bil_var_sse2) PRIVATE
+sym(vp8_filter_block2d_bil_var_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 9
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    push rbx
+    ; end prolog
+
+        pxor            xmm6,           xmm6                 ;
+        pxor            xmm7,           xmm7                 ;
+
+        lea             rsi,            [GLOBAL(xmm_bi_rd)]  ; rounding
+        movdqa          xmm4,           XMMWORD PTR [rsi]
+
+        lea             rcx,            [GLOBAL(vp8_bilinear_filters_sse2)]
+        movsxd          rax,            dword ptr arg(5)     ; xoffset
+
+        cmp             rax,            0                    ; skip first_pass filter if xoffset=0
+        je              filter_block2d_bil_var_sse2_sp_only
+
+        shl             rax,            5                    ; point to filter coeff with xoffset
+        lea             rax,            [rax + rcx]          ; HFilter
+
+        movsxd          rdx,            dword ptr arg(6)     ; yoffset
+
+        cmp             rdx,            0                    ; skip second_pass filter if yoffset=0
+        je              filter_block2d_bil_var_sse2_fp_only
+
+        shl             rdx,            5
+        lea             rdx,            [rdx + rcx]          ; VFilter
+
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+
+        pxor            xmm0,           xmm0                 ;
+        movq            xmm1,           QWORD PTR [rsi]      ;
+        movq            xmm3,           QWORD PTR [rsi+1]    ;
+
+        punpcklbw       xmm1,           xmm0                 ;
+        pmullw          xmm1,           [rax]                ;
+        punpcklbw       xmm3,           xmm0
+        pmullw          xmm3,           [rax+16]             ;
+
+        paddw           xmm1,           xmm3                 ;
+        paddw           xmm1,           xmm4                 ;
+        psraw           xmm1,           xmm_filter_shift     ;
+        movdqa          xmm5,           xmm1
+
+        movsxd          rbx,            dword ptr arg(1) ;ref_pixels_per_line
+        lea             rsi,            [rsi + rbx]
+%if ABI_IS_32BIT=0
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
+%endif
+
+filter_block2d_bil_var_sse2_loop:
+        movq            xmm1,           QWORD PTR [rsi]               ;
+        movq            xmm3,           QWORD PTR [rsi+1]             ;
+
+        punpcklbw       xmm1,           xmm0                 ;
+        pmullw          xmm1,           [rax]               ;
+        punpcklbw       xmm3,           xmm0                 ;
+        pmullw          xmm3,           [rax+16]             ;
+
+        paddw           xmm1,           xmm3                 ;
+        paddw           xmm1,           xmm4               ;
+        psraw           xmm1,           xmm_filter_shift    ;
+
+        movdqa          xmm3,           xmm5                 ;
+        movdqa          xmm5,           xmm1                 ;
+
+        pmullw          xmm3,           [rdx]               ;
+        pmullw          xmm1,           [rdx+16]             ;
+        paddw           xmm1,           xmm3                 ;
+        paddw           xmm1,           xmm4                 ;
+        psraw           xmm1,           xmm_filter_shift    ;
+
+        movq            xmm3,           QWORD PTR [rdi]               ;
+        punpcklbw       xmm3,           xmm0                 ;
+
+        psubw           xmm1,           xmm3                 ;
+        paddw           xmm6,           xmm1                 ;
+
+        pmaddwd         xmm1,           xmm1                 ;
+        paddd           xmm7,           xmm1                 ;
+
+        lea             rsi,            [rsi + rbx]          ;ref_pixels_per_line
+%if ABI_IS_32BIT
+        add             rdi,            dword ptr arg(3)     ;src_pixels_per_line
+%else
+        lea             rdi,            [rdi + r9]
+%endif
+
+        sub             rcx,            1                   ;
+        jnz             filter_block2d_bil_var_sse2_loop       ;
+
+        jmp             filter_block2d_bil_variance
+
+filter_block2d_bil_var_sse2_sp_only:
+        movsxd          rdx,            dword ptr arg(6)     ; yoffset
+
+        cmp             rdx,            0                    ; skip all if both xoffset=0 and yoffset=0
+        je              filter_block2d_bil_var_sse2_full_pixel
+
+        shl             rdx,            5
+        lea             rdx,            [rdx + rcx]          ; VFilter
+
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+        movsxd          rax,            dword ptr arg(1)     ;ref_pixels_per_line
+
+        pxor            xmm0,           xmm0                 ;
+        movq            xmm1,           QWORD PTR [rsi]      ;
+        punpcklbw       xmm1,           xmm0                 ;
+
+        movsxd          rbx,            dword ptr arg(3)     ;src_pixels_per_line
+        lea             rsi,            [rsi + rax]
+
+filter_block2d_bil_sp_only_loop:
+        movq            xmm3,           QWORD PTR [rsi]             ;
+        punpcklbw       xmm3,           xmm0                 ;
+        movdqa          xmm5,           xmm3
+
+        pmullw          xmm1,           [rdx]               ;
+        pmullw          xmm3,           [rdx+16]             ;
+        paddw           xmm1,           xmm3                 ;
+        paddw           xmm1,           xmm4                 ;
+        psraw           xmm1,           xmm_filter_shift    ;
+
+        movq            xmm3,           QWORD PTR [rdi]               ;
+        punpcklbw       xmm3,           xmm0                 ;
+
+        psubw           xmm1,           xmm3                 ;
+        paddw           xmm6,           xmm1                 ;
+
+        pmaddwd         xmm1,           xmm1                 ;
+        paddd           xmm7,           xmm1                 ;
+
+        movdqa          xmm1,           xmm5                 ;
+        lea             rsi,            [rsi + rax]          ;ref_pixels_per_line
+        lea             rdi,            [rdi + rbx]          ;src_pixels_per_line
+
+        sub             rcx,            1                   ;
+        jnz             filter_block2d_bil_sp_only_loop       ;
+
+        jmp             filter_block2d_bil_variance
+
+filter_block2d_bil_var_sse2_full_pixel:
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+        movsxd          rax,            dword ptr arg(1)     ;ref_pixels_per_line
+        movsxd          rbx,            dword ptr arg(3)     ;src_pixels_per_line
+        pxor            xmm0,           xmm0                 ;
+
+filter_block2d_bil_full_pixel_loop:
+        movq            xmm1,           QWORD PTR [rsi]               ;
+        punpcklbw       xmm1,           xmm0                 ;
+
+        movq            xmm2,           QWORD PTR [rdi]               ;
+        punpcklbw       xmm2,           xmm0                 ;
+
+        psubw           xmm1,           xmm2                 ;
+        paddw           xmm6,           xmm1                 ;
+
+        pmaddwd         xmm1,           xmm1                 ;
+        paddd           xmm7,           xmm1                 ;
+
+        lea             rsi,            [rsi + rax]          ;ref_pixels_per_line
+        lea             rdi,            [rdi + rbx]          ;src_pixels_per_line
+
+        sub             rcx,            1                   ;
+        jnz             filter_block2d_bil_full_pixel_loop       ;
+
+        jmp             filter_block2d_bil_variance
+
+filter_block2d_bil_var_sse2_fp_only:
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+        movsxd          rdx,            dword ptr arg(1)     ;ref_pixels_per_line
+
+        pxor            xmm0,           xmm0                 ;
+        movsxd          rbx,            dword ptr arg(3)     ;src_pixels_per_line
+
+filter_block2d_bil_fp_only_loop:
+        movq            xmm1,           QWORD PTR [rsi]       ;
+        movq            xmm3,           QWORD PTR [rsi+1]     ;
+
+        punpcklbw       xmm1,           xmm0                 ;
+        pmullw          xmm1,           [rax]               ;
+        punpcklbw       xmm3,           xmm0                 ;
+        pmullw          xmm3,           [rax+16]             ;
+
+        paddw           xmm1,           xmm3                 ;
+        paddw           xmm1,           xmm4  ;
+        psraw           xmm1,           xmm_filter_shift    ;
+
+        movq            xmm3,           QWORD PTR [rdi]     ;
+        punpcklbw       xmm3,           xmm0                 ;
+
+        psubw           xmm1,           xmm3                 ;
+        paddw           xmm6,           xmm1                 ;
+
+        pmaddwd         xmm1,           xmm1                 ;
+        paddd           xmm7,           xmm1                 ;
+        lea             rsi,            [rsi + rdx]
+        lea             rdi,            [rdi + rbx]          ;src_pixels_per_line
+
+        sub             rcx,            1                   ;
+        jnz             filter_block2d_bil_fp_only_loop       ;
+
+        jmp             filter_block2d_bil_variance
+
+filter_block2d_bil_variance:
+        movdq2q         mm6,            xmm6                ;
+        movdq2q         mm7,            xmm7                ;
+
+        psrldq          xmm6,           8
+        psrldq          xmm7,           8
+
+        movdq2q         mm2,            xmm6
+        movdq2q         mm3,            xmm7
+
+        paddw           mm6,            mm2
+        paddd           mm7,            mm3
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rsi,            arg(7) ; sum
+        mov             rdi,            arg(8) ; sumsquared
+
+        movd            [rsi],          mm2    ; xsum
+        movd            [rdi],          mm4    ; xxsum
+
+    ; begin epilog
+    pop rbx
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_half_horiz_vert_variance8x_h_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_half_horiz_vert_variance8x_h_sse2) PRIVATE
+sym(vp8_half_horiz_vert_variance8x_h_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+%if ABI_IS_32BIT=0
+    movsxd          r8, dword ptr arg(1) ;ref_pixels_per_line
+    movsxd          r9, dword ptr arg(3) ;src_pixels_per_line
+%endif
+
+        pxor            xmm6,           xmm6                ;  error accumulator
+        pxor            xmm7,           xmm7                ;  sse eaccumulator
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+        movsxd          rax,            dword ptr arg(1) ;ref_pixels_per_line
+
+        pxor            xmm0,           xmm0                ;
+
+        movq            xmm5,           QWORD PTR [rsi]     ;  xmm5 = s0,s1,s2..s8
+        movq            xmm3,           QWORD PTR [rsi+1]   ;  xmm3 = s1,s2,s3..s9
+        pavgb           xmm5,           xmm3                ;  xmm5 = avg(xmm1,xmm3) horizontal line 1
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;  next source
+%else
+        add             rsi, r8
+%endif
+
+vp8_half_horiz_vert_variance8x_h_1:
+
+        movq            xmm1,           QWORD PTR [rsi]     ;
+        movq            xmm2,           QWORD PTR [rsi+1]   ;
+        pavgb           xmm1,           xmm2                ;  xmm1 = avg(xmm1,xmm3) horizontal line i+1
+
+        pavgb           xmm5,           xmm1                ;  xmm = vertical average of the above
+        punpcklbw       xmm5,           xmm0                ;  xmm5 = words of above
+
+        movq            xmm3,           QWORD PTR [rdi]     ;  xmm3 = d0,d1,d2..d8
+        punpcklbw       xmm3,           xmm0                ;  xmm3 = words of above
+
+        psubw           xmm5,           xmm3                ;  xmm5 -= xmm3
+        paddw           xmm6,           xmm5                ;  xmm6 += accumulated column differences
+        pmaddwd         xmm5,           xmm5                ;  xmm5 *= xmm5
+        paddd           xmm7,           xmm5                ;  xmm7 += accumulated square column differences
+
+        movdqa          xmm5,           xmm1                ;  save xmm1 for use on the next row
+
+%if ABI_IS_32BIT
+        add             esi,            dword ptr arg(1) ;ref_pixels_per_line    ;  next source
+        add             edi,            dword ptr arg(3) ;src_pixels_per_line    ;  next destination
+%else
+        add             rsi, r8
+        add             rdi, r9
+%endif
+
+        sub             rcx,            1                   ;
+        jnz             vp8_half_horiz_vert_variance8x_h_1     ;
+
+        movdq2q         mm6,            xmm6                ;
+        movdq2q         mm7,            xmm7                ;
+
+        psrldq          xmm6,           8
+        psrldq          xmm7,           8
+
+        movdq2q         mm2,            xmm6
+        movdq2q         mm3,            xmm7
+
+        paddw           mm6,            mm2
+        paddd           mm7,            mm3
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rsi,            arg(5) ; sum
+        mov             rdi,            arg(6) ; sumsquared
+
+        movd            [rsi],          mm2                 ;
+        movd            [rdi],          mm4                 ;
+
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_half_horiz_vert_variance16x_h_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_half_horiz_vert_variance16x_h_sse2) PRIVATE
+sym(vp8_half_horiz_vert_variance16x_h_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+        pxor            xmm6,           xmm6                ;  error accumulator
+        pxor            xmm7,           xmm7                ;  sse eaccumulator
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+        movsxd          rax,            dword ptr arg(1) ;ref_pixels_per_line
+        movsxd          rdx,            dword ptr arg(3)    ;src_pixels_per_line
+
+        pxor            xmm0,           xmm0                ;
+
+        movdqu          xmm5,           XMMWORD PTR [rsi]
+        movdqu          xmm3,           XMMWORD PTR [rsi+1]
+        pavgb           xmm5,           xmm3                ;  xmm5 = avg(xmm1,xmm3) horizontal line 1
+
+        lea             rsi,            [rsi + rax]
+
+vp8_half_horiz_vert_variance16x_h_1:
+        movdqu          xmm1,           XMMWORD PTR [rsi]     ;
+        movdqu          xmm2,           XMMWORD PTR [rsi+1]   ;
+        pavgb           xmm1,           xmm2                ;  xmm1 = avg(xmm1,xmm3) horizontal line i+1
+
+        pavgb           xmm5,           xmm1                ;  xmm = vertical average of the above
+
+        movdqa          xmm4,           xmm5
+        punpcklbw       xmm5,           xmm0                ;  xmm5 = words of above
+        punpckhbw       xmm4,           xmm0
+
+        movq            xmm3,           QWORD PTR [rdi]     ;  xmm3 = d0,d1,d2..d7
+        punpcklbw       xmm3,           xmm0                ;  xmm3 = words of above
+        psubw           xmm5,           xmm3                ;  xmm5 -= xmm3
+
+        movq            xmm3,           QWORD PTR [rdi+8]
+        punpcklbw       xmm3,           xmm0
+        psubw           xmm4,           xmm3
+
+        paddw           xmm6,           xmm5                ;  xmm6 += accumulated column differences
+        paddw           xmm6,           xmm4
+        pmaddwd         xmm5,           xmm5                ;  xmm5 *= xmm5
+        pmaddwd         xmm4,           xmm4
+        paddd           xmm7,           xmm5                ;  xmm7 += accumulated square column differences
+        paddd           xmm7,           xmm4
+
+        movdqa          xmm5,           xmm1                ;  save xmm1 for use on the next row
+
+        lea             rsi,            [rsi + rax]
+        lea             rdi,            [rdi + rdx]
+
+        sub             rcx,            1                   ;
+        jnz             vp8_half_horiz_vert_variance16x_h_1     ;
+
+        pxor        xmm1,           xmm1
+        pxor        xmm5,           xmm5
+
+        punpcklwd   xmm0,           xmm6
+        punpckhwd   xmm1,           xmm6
+        psrad       xmm0,           16
+        psrad       xmm1,           16
+        paddd       xmm0,           xmm1
+        movdqa      xmm1,           xmm0
+
+        movdqa      xmm6,           xmm7
+        punpckldq   xmm6,           xmm5
+        punpckhdq   xmm7,           xmm5
+        paddd       xmm6,           xmm7
+
+        punpckldq   xmm0,           xmm5
+        punpckhdq   xmm1,           xmm5
+        paddd       xmm0,           xmm1
+
+        movdqa      xmm7,           xmm6
+        movdqa      xmm1,           xmm0
+
+        psrldq      xmm7,           8
+        psrldq      xmm1,           8
+
+        paddd       xmm6,           xmm7
+        paddd       xmm0,           xmm1
+
+        mov         rsi,            arg(5) ;[Sum]
+        mov         rdi,            arg(6) ;[SSE]
+
+        movd        [rsi],       xmm0
+        movd        [rdi],       xmm6
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_half_vert_variance8x_h_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_half_vert_variance8x_h_sse2) PRIVATE
+sym(vp8_half_vert_variance8x_h_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+%if ABI_IS_32BIT=0
+    movsxd          r8, dword ptr arg(1) ;ref_pixels_per_line
+    movsxd          r9, dword ptr arg(3) ;src_pixels_per_line
+%endif
+
+        pxor            xmm6,           xmm6                ;  error accumulator
+        pxor            xmm7,           xmm7                ;  sse eaccumulator
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+        movsxd          rax,            dword ptr arg(1) ;ref_pixels_per_line
+
+        pxor            xmm0,           xmm0                ;
+vp8_half_vert_variance8x_h_1:
+        movq            xmm5,           QWORD PTR [rsi]     ;  xmm5 = s0,s1,s2..s8
+        movq            xmm3,           QWORD PTR [rsi+rax] ;  xmm3 = s1,s2,s3..s9
+
+        pavgb           xmm5,           xmm3                ;  xmm5 = avg(xmm1,xmm3)
+        punpcklbw       xmm5,           xmm0                ;  xmm5 = words of above
+
+        movq            xmm3,           QWORD PTR [rdi]     ;  xmm3 = d0,d1,d2..d8
+        punpcklbw       xmm3,           xmm0                ;  xmm3 = words of above
+
+        psubw           xmm5,           xmm3                ;  xmm5 -= xmm3
+        paddw           xmm6,           xmm5                ;  xmm6 += accumulated column differences
+        pmaddwd         xmm5,           xmm5                ;  xmm5 *= xmm5
+        paddd           xmm7,           xmm5                ;  xmm7 += accumulated square column differences
+
+%if ABI_IS_32BIT
+        add             esi,            dword ptr arg(1) ;ref_pixels_per_line    ;  next source
+        add             edi,            dword ptr arg(3) ;src_pixels_per_line    ;  next destination
+%else
+        add             rsi, r8
+        add             rdi, r9
+%endif
+
+        sub             rcx,            1                   ;
+        jnz             vp8_half_vert_variance8x_h_1          ;
+
+        movdq2q         mm6,            xmm6                ;
+        movdq2q         mm7,            xmm7                ;
+
+        psrldq          xmm6,           8
+        psrldq          xmm7,           8
+
+        movdq2q         mm2,            xmm6
+        movdq2q         mm3,            xmm7
+
+        paddw           mm6,            mm2
+        paddd           mm7,            mm3
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rsi,            arg(5) ; sum
+        mov             rdi,            arg(6) ; sumsquared
+
+        movd            [rsi],          mm2                 ;
+        movd            [rdi],          mm4                 ;
+
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_half_vert_variance16x_h_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_half_vert_variance16x_h_sse2) PRIVATE
+sym(vp8_half_vert_variance16x_h_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+        pxor            xmm6,           xmm6                ;  error accumulator
+        pxor            xmm7,           xmm7                ;  sse eaccumulator
+        mov             rsi,            arg(0)              ;ref_ptr
+
+        mov             rdi,            arg(2)              ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)    ;Height
+        movsxd          rax,            dword ptr arg(1)    ;ref_pixels_per_line
+        movsxd          rdx,            dword ptr arg(3)    ;src_pixels_per_line
+
+        movdqu          xmm5,           XMMWORD PTR [rsi]
+        lea             rsi,            [rsi + rax          ]
+        pxor            xmm0,           xmm0
+
+vp8_half_vert_variance16x_h_1:
+        movdqu          xmm3,           XMMWORD PTR [rsi]
+
+        pavgb           xmm5,           xmm3                ;  xmm5 = avg(xmm1,xmm3)
+        movdqa          xmm4,           xmm5
+        punpcklbw       xmm5,           xmm0
+        punpckhbw       xmm4,           xmm0
+
+        movq            xmm2,           QWORD PTR [rdi]
+        punpcklbw       xmm2,           xmm0
+        psubw           xmm5,           xmm2
+        movq            xmm2,           QWORD PTR [rdi+8]
+        punpcklbw       xmm2,           xmm0
+        psubw           xmm4,           xmm2
+
+        paddw           xmm6,           xmm5                ;  xmm6 += accumulated column differences
+        paddw           xmm6,           xmm4
+        pmaddwd         xmm5,           xmm5                ;  xmm5 *= xmm5
+        pmaddwd         xmm4,           xmm4
+        paddd           xmm7,           xmm5                ;  xmm7 += accumulated square column differences
+        paddd           xmm7,           xmm4
+
+        movdqa          xmm5,           xmm3
+
+        lea             rsi,            [rsi + rax]
+        lea             rdi,            [rdi + rdx]
+
+        sub             rcx,            1
+        jnz             vp8_half_vert_variance16x_h_1
+
+        pxor        xmm1,           xmm1
+        pxor        xmm5,           xmm5
+
+        punpcklwd   xmm0,           xmm6
+        punpckhwd   xmm1,           xmm6
+        psrad       xmm0,           16
+        psrad       xmm1,           16
+        paddd       xmm0,           xmm1
+        movdqa      xmm1,           xmm0
+
+        movdqa      xmm6,           xmm7
+        punpckldq   xmm6,           xmm5
+        punpckhdq   xmm7,           xmm5
+        paddd       xmm6,           xmm7
+
+        punpckldq   xmm0,           xmm5
+        punpckhdq   xmm1,           xmm5
+        paddd       xmm0,           xmm1
+
+        movdqa      xmm7,           xmm6
+        movdqa      xmm1,           xmm0
+
+        psrldq      xmm7,           8
+        psrldq      xmm1,           8
+
+        paddd       xmm6,           xmm7
+        paddd       xmm0,           xmm1
+
+        mov         rsi,            arg(5) ;[Sum]
+        mov         rdi,            arg(6) ;[SSE]
+
+        movd        [rsi],       xmm0
+        movd        [rdi],       xmm6
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_half_horiz_variance8x_h_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_half_horiz_variance8x_h_sse2) PRIVATE
+sym(vp8_half_horiz_variance8x_h_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+%if ABI_IS_32BIT=0
+    movsxd          r8, dword ptr arg(1) ;ref_pixels_per_line
+    movsxd          r9, dword ptr arg(3) ;src_pixels_per_line
+%endif
+
+        pxor            xmm6,           xmm6                ;  error accumulator
+        pxor            xmm7,           xmm7                ;  sse eaccumulator
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+
+        pxor            xmm0,           xmm0                ;
+vp8_half_horiz_variance8x_h_1:
+        movq            xmm5,           QWORD PTR [rsi]     ;  xmm5 = s0,s1,s2..s8
+        movq            xmm3,           QWORD PTR [rsi+1]   ;  xmm3 = s1,s2,s3..s9
+
+        pavgb           xmm5,           xmm3                ;  xmm5 = avg(xmm1,xmm3)
+        punpcklbw       xmm5,           xmm0                ;  xmm5 = words of above
+
+        movq            xmm3,           QWORD PTR [rdi]     ;  xmm3 = d0,d1,d2..d8
+        punpcklbw       xmm3,           xmm0                ;  xmm3 = words of above
+
+        psubw           xmm5,           xmm3                ;  xmm5 -= xmm3
+        paddw           xmm6,           xmm5                ;  xmm6 += accumulated column differences
+        pmaddwd         xmm5,           xmm5                ;  xmm5 *= xmm5
+        paddd           xmm7,           xmm5                ;  xmm7 += accumulated square column differences
+
+%if ABI_IS_32BIT
+        add             esi,            dword ptr arg(1) ;ref_pixels_per_line    ;  next source
+        add             edi,            dword ptr arg(3) ;src_pixels_per_line    ;  next destination
+%else
+        add             rsi, r8
+        add             rdi, r9
+%endif
+        sub             rcx,            1                   ;
+        jnz             vp8_half_horiz_variance8x_h_1        ;
+
+        movdq2q         mm6,            xmm6                ;
+        movdq2q         mm7,            xmm7                ;
+
+        psrldq          xmm6,           8
+        psrldq          xmm7,           8
+
+        movdq2q         mm2,            xmm6
+        movdq2q         mm3,            xmm7
+
+        paddw           mm6,            mm2
+        paddd           mm7,            mm3
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rsi,            arg(5) ; sum
+        mov             rdi,            arg(6) ; sumsquared
+
+        movd            [rsi],          mm2                 ;
+        movd            [rdi],          mm4                 ;
+
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_half_horiz_variance16x_h_sse2
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_half_horiz_variance16x_h_sse2) PRIVATE
+sym(vp8_half_horiz_variance16x_h_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+        pxor            xmm6,           xmm6                ;  error accumulator
+        pxor            xmm7,           xmm7                ;  sse eaccumulator
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+        movsxd          rax,            dword ptr arg(1) ;ref_pixels_per_line
+        movsxd          rdx,            dword ptr arg(3)    ;src_pixels_per_line
+
+        pxor            xmm0,           xmm0                ;
+
+vp8_half_horiz_variance16x_h_1:
+        movdqu          xmm5,           XMMWORD PTR [rsi]     ;  xmm5 = s0,s1,s2..s15
+        movdqu          xmm3,           XMMWORD PTR [rsi+1]   ;  xmm3 = s1,s2,s3..s16
+
+        pavgb           xmm5,           xmm3                ;  xmm5 = avg(xmm1,xmm3)
+        movdqa          xmm1,           xmm5
+        punpcklbw       xmm5,           xmm0                ;  xmm5 = words of above
+        punpckhbw       xmm1,           xmm0
+
+        movq            xmm3,           QWORD PTR [rdi]     ;  xmm3 = d0,d1,d2..d7
+        punpcklbw       xmm3,           xmm0                ;  xmm3 = words of above
+        movq            xmm2,           QWORD PTR [rdi+8]
+        punpcklbw       xmm2,           xmm0
+
+        psubw           xmm5,           xmm3                ;  xmm5 -= xmm3
+        psubw           xmm1,           xmm2
+        paddw           xmm6,           xmm5                ;  xmm6 += accumulated column differences
+        paddw           xmm6,           xmm1
+        pmaddwd         xmm5,           xmm5                ;  xmm5 *= xmm5
+        pmaddwd         xmm1,           xmm1
+        paddd           xmm7,           xmm5                ;  xmm7 += accumulated square column differences
+        paddd           xmm7,           xmm1
+
+        lea             rsi,            [rsi + rax]
+        lea             rdi,            [rdi + rdx]
+
+        sub             rcx,            1                   ;
+        jnz             vp8_half_horiz_variance16x_h_1        ;
+
+        pxor        xmm1,           xmm1
+        pxor        xmm5,           xmm5
+
+        punpcklwd   xmm0,           xmm6
+        punpckhwd   xmm1,           xmm6
+        psrad       xmm0,           16
+        psrad       xmm1,           16
+        paddd       xmm0,           xmm1
+        movdqa      xmm1,           xmm0
+
+        movdqa      xmm6,           xmm7
+        punpckldq   xmm6,           xmm5
+        punpckhdq   xmm7,           xmm5
+        paddd       xmm6,           xmm7
+
+        punpckldq   xmm0,           xmm5
+        punpckhdq   xmm1,           xmm5
+        paddd       xmm0,           xmm1
+
+        movdqa      xmm7,           xmm6
+        movdqa      xmm1,           xmm0
+
+        psrldq      xmm7,           8
+        psrldq      xmm1,           8
+
+        paddd       xmm6,           xmm7
+        paddd       xmm0,           xmm1
+
+        mov         rsi,            arg(5) ;[Sum]
+        mov         rdi,            arg(6) ;[SSE]
+
+        movd        [rsi],       xmm0
+        movd        [rdi],       xmm6
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+;    short xmm_bi_rd[8] = { 64, 64, 64, 64,64, 64, 64, 64};
+align 16
+xmm_bi_rd:
+    times 8 dw 64
+align 16
+vp8_bilinear_filters_sse2:
+    dw 128, 128, 128, 128, 128, 128, 128, 128,  0,  0,  0,  0,  0,  0,  0,  0
+    dw 112, 112, 112, 112, 112, 112, 112, 112, 16, 16, 16, 16, 16, 16, 16, 16
+    dw 96, 96, 96, 96, 96, 96, 96, 96, 32, 32, 32, 32, 32, 32, 32, 32
+    dw 80, 80, 80, 80, 80, 80, 80, 80, 48, 48, 48, 48, 48, 48, 48, 48
+    dw 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
+    dw 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80
+    dw 32, 32, 32, 32, 32, 32, 32, 32, 96, 96, 96, 96, 96, 96, 96, 96
+    dw 16, 16, 16, 16, 16, 16, 16, 16, 112, 112, 112, 112, 112, 112, 112, 112
diff --git a/media/libvpx/vp8/common/x86/variance_impl_ssse3.asm b/media/libvpx/vp8/common/x86/variance_impl_ssse3.asm
new file mode 100644
index 000000000..686b4a902
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/variance_impl_ssse3.asm
@@ -0,0 +1,364 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%define xmm_filter_shift            7
+
+
+;void vp8_filter_block2d_bil_var_ssse3
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    int  xoffset,
+;    int  yoffset,
+;    int *sum,
+;    unsigned int *sumsquared;;
+;
+;)
+;Note: The filter coefficient at offset=0 is 128. Since the second register
+;for Pmaddubsw is signed bytes, we must calculate zero offset seperately.
+global sym(vp8_filter_block2d_bil_var_ssse3) PRIVATE
+sym(vp8_filter_block2d_bil_var_ssse3):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 9
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+        pxor            xmm6,           xmm6
+        pxor            xmm7,           xmm7
+
+        lea             rcx,            [GLOBAL(vp8_bilinear_filters_ssse3)]
+        movsxd          rax,            dword ptr arg(5)     ; xoffset
+
+        cmp             rax,            0                    ; skip first_pass filter if xoffset=0
+        je              .filter_block2d_bil_var_ssse3_sp_only
+
+        shl             rax,            4                    ; point to filter coeff with xoffset
+        lea             rax,            [rax + rcx]          ; HFilter
+
+        movsxd          rdx,            dword ptr arg(6)     ; yoffset
+
+        cmp             rdx,            0                    ; skip second_pass filter if yoffset=0
+        je              .filter_block2d_bil_var_ssse3_fp_only
+
+        shl             rdx,            4
+        lea             rdx,            [rdx + rcx]          ; VFilter
+
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+
+        movdqu          xmm0,           XMMWORD PTR [rsi]
+        movdqu          xmm1,           XMMWORD PTR [rsi+1]
+        movdqa          xmm2,           xmm0
+
+        punpcklbw       xmm0,           xmm1
+        punpckhbw       xmm2,           xmm1
+        pmaddubsw       xmm0,           [rax]
+        pmaddubsw       xmm2,           [rax]
+
+        paddw           xmm0,           [GLOBAL(xmm_bi_rd)]
+        paddw           xmm2,           [GLOBAL(xmm_bi_rd)]
+        psraw           xmm0,           xmm_filter_shift
+        psraw           xmm2,           xmm_filter_shift
+
+        packuswb        xmm0,           xmm2
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
+        lea             rsi,            [rsi + r8]
+%endif
+
+.filter_block2d_bil_var_ssse3_loop:
+        movdqu          xmm1,           XMMWORD PTR [rsi]
+        movdqu          xmm2,           XMMWORD PTR [rsi+1]
+        movdqa          xmm3,           xmm1
+
+        punpcklbw       xmm1,           xmm2
+        punpckhbw       xmm3,           xmm2
+        pmaddubsw       xmm1,           [rax]
+        pmaddubsw       xmm3,           [rax]
+
+        paddw           xmm1,           [GLOBAL(xmm_bi_rd)]
+        paddw           xmm3,           [GLOBAL(xmm_bi_rd)]
+        psraw           xmm1,           xmm_filter_shift
+        psraw           xmm3,           xmm_filter_shift
+        packuswb        xmm1,           xmm3
+
+        movdqa          xmm2,           xmm0
+        movdqa          xmm0,           xmm1
+        movdqa          xmm3,           xmm2
+
+        punpcklbw       xmm2,           xmm1
+        punpckhbw       xmm3,           xmm1
+        pmaddubsw       xmm2,           [rdx]
+        pmaddubsw       xmm3,           [rdx]
+
+        paddw           xmm2,           [GLOBAL(xmm_bi_rd)]
+        paddw           xmm3,           [GLOBAL(xmm_bi_rd)]
+        psraw           xmm2,           xmm_filter_shift
+        psraw           xmm3,           xmm_filter_shift
+
+        movq            xmm1,           QWORD PTR [rdi]
+        pxor            xmm4,           xmm4
+        punpcklbw       xmm1,           xmm4
+        movq            xmm5,           QWORD PTR [rdi+8]
+        punpcklbw       xmm5,           xmm4
+
+        psubw           xmm2,           xmm1
+        psubw           xmm3,           xmm5
+        paddw           xmm6,           xmm2
+        paddw           xmm6,           xmm3
+        pmaddwd         xmm2,           xmm2
+        pmaddwd         xmm3,           xmm3
+        paddd           xmm7,           xmm2
+        paddd           xmm7,           xmm3
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1)     ;ref_pixels_per_line
+        add             rdi,            dword ptr arg(3)     ;src_pixels_per_line
+%else
+        lea             rsi,            [rsi + r8]
+        lea             rdi,            [rdi + r9]
+%endif
+
+        sub             rcx,            1
+        jnz             .filter_block2d_bil_var_ssse3_loop
+
+        jmp             .filter_block2d_bil_variance
+
+.filter_block2d_bil_var_ssse3_sp_only:
+        movsxd          rdx,            dword ptr arg(6)     ; yoffset
+
+        cmp             rdx,            0                    ; Both xoffset =0 and yoffset=0
+        je              .filter_block2d_bil_var_ssse3_full_pixel
+
+        shl             rdx,            4
+        lea             rdx,            [rdx + rcx]          ; VFilter
+
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+        movsxd          rax,            dword ptr arg(1)     ;ref_pixels_per_line
+
+        movdqu          xmm1,           XMMWORD PTR [rsi]
+        movdqa          xmm0,           xmm1
+
+%if ABI_IS_32BIT=0
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
+%endif
+
+        lea             rsi,            [rsi + rax]
+
+.filter_block2d_bil_sp_only_loop:
+        movdqu          xmm3,           XMMWORD PTR [rsi]
+        movdqa          xmm2,           xmm1
+        movdqa          xmm0,           xmm3
+
+        punpcklbw       xmm1,           xmm3
+        punpckhbw       xmm2,           xmm3
+        pmaddubsw       xmm1,           [rdx]
+        pmaddubsw       xmm2,           [rdx]
+
+        paddw           xmm1,           [GLOBAL(xmm_bi_rd)]
+        paddw           xmm2,           [GLOBAL(xmm_bi_rd)]
+        psraw           xmm1,           xmm_filter_shift
+        psraw           xmm2,           xmm_filter_shift
+
+        movq            xmm3,           QWORD PTR [rdi]
+        pxor            xmm4,           xmm4
+        punpcklbw       xmm3,           xmm4
+        movq            xmm5,           QWORD PTR [rdi+8]
+        punpcklbw       xmm5,           xmm4
+
+        psubw           xmm1,           xmm3
+        psubw           xmm2,           xmm5
+        paddw           xmm6,           xmm1
+        paddw           xmm6,           xmm2
+        pmaddwd         xmm1,           xmm1
+        pmaddwd         xmm2,           xmm2
+        paddd           xmm7,           xmm1
+        paddd           xmm7,           xmm2
+
+        movdqa          xmm1,           xmm0
+        lea             rsi,            [rsi + rax]          ;ref_pixels_per_line
+
+%if ABI_IS_32BIT
+        add             rdi,            dword ptr arg(3)     ;src_pixels_per_line
+%else
+        lea             rdi,            [rdi + r9]
+%endif
+
+        sub             rcx,            1
+        jnz             .filter_block2d_bil_sp_only_loop
+
+        jmp             .filter_block2d_bil_variance
+
+.filter_block2d_bil_var_ssse3_full_pixel:
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+        movsxd          rax,            dword ptr arg(1)     ;ref_pixels_per_line
+        movsxd          rdx,            dword ptr arg(3)     ;src_pixels_per_line
+        pxor            xmm0,           xmm0
+
+.filter_block2d_bil_full_pixel_loop:
+        movq            xmm1,           QWORD PTR [rsi]
+        punpcklbw       xmm1,           xmm0
+        movq            xmm2,           QWORD PTR [rsi+8]
+        punpcklbw       xmm2,           xmm0
+
+        movq            xmm3,           QWORD PTR [rdi]
+        punpcklbw       xmm3,           xmm0
+        movq            xmm4,           QWORD PTR [rdi+8]
+        punpcklbw       xmm4,           xmm0
+
+        psubw           xmm1,           xmm3
+        psubw           xmm2,           xmm4
+        paddw           xmm6,           xmm1
+        paddw           xmm6,           xmm2
+        pmaddwd         xmm1,           xmm1
+        pmaddwd         xmm2,           xmm2
+        paddd           xmm7,           xmm1
+        paddd           xmm7,           xmm2
+
+        lea             rsi,            [rsi + rax]          ;ref_pixels_per_line
+        lea             rdi,            [rdi + rdx]          ;src_pixels_per_line
+        sub             rcx,            1
+        jnz             .filter_block2d_bil_full_pixel_loop
+
+        jmp             .filter_block2d_bil_variance
+
+.filter_block2d_bil_var_ssse3_fp_only:
+        mov             rsi,            arg(0)               ;ref_ptr
+        mov             rdi,            arg(2)               ;src_ptr
+        movsxd          rcx,            dword ptr arg(4)     ;Height
+        movsxd          rdx,            dword ptr arg(1)     ;ref_pixels_per_line
+
+        pxor            xmm0,           xmm0
+
+%if ABI_IS_32BIT=0
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
+%endif
+
+.filter_block2d_bil_fp_only_loop:
+        movdqu          xmm1,           XMMWORD PTR [rsi]
+        movdqu          xmm2,           XMMWORD PTR [rsi+1]
+        movdqa          xmm3,           xmm1
+
+        punpcklbw       xmm1,           xmm2
+        punpckhbw       xmm3,           xmm2
+        pmaddubsw       xmm1,           [rax]
+        pmaddubsw       xmm3,           [rax]
+
+        paddw           xmm1,           [GLOBAL(xmm_bi_rd)]
+        paddw           xmm3,           [GLOBAL(xmm_bi_rd)]
+        psraw           xmm1,           xmm_filter_shift
+        psraw           xmm3,           xmm_filter_shift
+
+        movq            xmm2,           XMMWORD PTR [rdi]
+        pxor            xmm4,           xmm4
+        punpcklbw       xmm2,           xmm4
+        movq            xmm5,           QWORD PTR [rdi+8]
+        punpcklbw       xmm5,           xmm4
+
+        psubw           xmm1,           xmm2
+        psubw           xmm3,           xmm5
+        paddw           xmm6,           xmm1
+        paddw           xmm6,           xmm3
+        pmaddwd         xmm1,           xmm1
+        pmaddwd         xmm3,           xmm3
+        paddd           xmm7,           xmm1
+        paddd           xmm7,           xmm3
+
+        lea             rsi,            [rsi + rdx]
+%if ABI_IS_32BIT
+        add             rdi,            dword ptr arg(3)     ;src_pixels_per_line
+%else
+        lea             rdi,            [rdi + r9]
+%endif
+
+        sub             rcx,            1
+        jnz             .filter_block2d_bil_fp_only_loop
+
+        jmp             .filter_block2d_bil_variance
+
+.filter_block2d_bil_variance:
+        pxor        xmm0,           xmm0
+        pxor        xmm1,           xmm1
+        pxor        xmm5,           xmm5
+
+        punpcklwd   xmm0,           xmm6
+        punpckhwd   xmm1,           xmm6
+        psrad       xmm0,           16
+        psrad       xmm1,           16
+        paddd       xmm0,           xmm1
+        movdqa      xmm1,           xmm0
+
+        movdqa      xmm6,           xmm7
+        punpckldq   xmm6,           xmm5
+        punpckhdq   xmm7,           xmm5
+        paddd       xmm6,           xmm7
+
+        punpckldq   xmm0,           xmm5
+        punpckhdq   xmm1,           xmm5
+        paddd       xmm0,           xmm1
+
+        movdqa      xmm7,           xmm6
+        movdqa      xmm1,           xmm0
+
+        psrldq      xmm7,           8
+        psrldq      xmm1,           8
+
+        paddd       xmm6,           xmm7
+        paddd       xmm0,           xmm1
+
+        mov         rsi,            arg(7) ;[Sum]
+        mov         rdi,            arg(8) ;[SSE]
+
+        movd        [rsi],       xmm0
+        movd        [rdi],       xmm6
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+SECTION_RODATA
+align 16
+xmm_bi_rd:
+    times 8 dw 64
+align 16
+vp8_bilinear_filters_ssse3:
+    times 8 db 128, 0
+    times 8 db 112, 16
+    times 8 db 96,  32
+    times 8 db 80,  48
+    times 8 db 64,  64
+    times 8 db 48,  80
+    times 8 db 32,  96
+    times 8 db 16,  112
diff --git a/media/libvpx/vp8/common/x86/variance_ssse3.c b/media/libvpx/vp8/common/x86/variance_ssse3.c
new file mode 100644
index 000000000..2a0df640a
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/variance_ssse3.c
@@ -0,0 +1,157 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vp8_rtcd.h"
+#include "vpx_config.h"
+#include "vp8/common/variance.h"
+#include "vpx_ports/mem.h"
+
+extern void vp8_half_horiz_vert_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+extern void vp8_half_horiz_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+extern void vp8_half_vert_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+extern void vp8_filter_block2d_bil_var_ssse3
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int  xoffset,
+    int  yoffset,
+    int *sum,
+    unsigned int *sumsquared
+);
+
+unsigned int vp8_sub_pixel_variance16x16_ssse3
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum0;
+    unsigned int xxsum0;
+
+    /* note we could avoid these if statements if the calling function
+     * just called the appropriate functions inside.
+     */
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_ssse3(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum0, &xxsum0);
+    }
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+unsigned int vp8_sub_pixel_variance16x8_ssse3
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+
+)
+{
+    int xsum0;
+    unsigned int xxsum0;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_ssse3(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum0, &xxsum0);
+    }
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
+}
diff --git a/media/libvpx/vp8/common/x86/vp8_asm_stubs.c b/media/libvpx/vp8/common/x86/vp8_asm_stubs.c
new file mode 100644
index 000000000..fb0b57eb1
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/vp8_asm_stubs.c
@@ -0,0 +1,625 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_ports/mem.h"
+#include "filter_x86.h"
+
+extern const short vp8_six_tap_mmx[8][6*8];
+
+extern void vp8_filter_block1d_h6_mmx
+(
+    unsigned char   *src_ptr,
+    unsigned short  *output_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned int    pixel_step,
+    unsigned int    output_height,
+    unsigned int    output_width,
+    const short      *vp8_filter
+);
+extern void vp8_filter_block1dc_v6_mmx
+(
+    unsigned short *src_ptr,
+    unsigned char  *output_ptr,
+    int             output_pitch,
+    unsigned int    pixels_per_line,
+    unsigned int    pixel_step,
+    unsigned int    output_height,
+    unsigned int    output_width,
+    const short    *vp8_filter
+);
+extern void vp8_filter_block1d8_h6_sse2
+(
+    unsigned char  *src_ptr,
+    unsigned short *output_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned int    pixel_step,
+    unsigned int    output_height,
+    unsigned int    output_width,
+    const short    *vp8_filter
+);
+extern void vp8_filter_block1d16_h6_sse2
+(
+    unsigned char  *src_ptr,
+    unsigned short *output_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned int    pixel_step,
+    unsigned int    output_height,
+    unsigned int    output_width,
+    const short    *vp8_filter
+);
+extern void vp8_filter_block1d8_v6_sse2
+(
+    unsigned short *src_ptr,
+    unsigned char *output_ptr,
+    int dst_ptich,
+    unsigned int pixels_per_line,
+    unsigned int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    const short    *vp8_filter
+);
+extern void vp8_filter_block1d16_v6_sse2
+(
+    unsigned short *src_ptr,
+    unsigned char *output_ptr,
+    int dst_ptich,
+    unsigned int pixels_per_line,
+    unsigned int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    const short    *vp8_filter
+);
+extern void vp8_unpack_block1d16_h6_sse2
+(
+    unsigned char  *src_ptr,
+    unsigned short *output_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned int    output_height,
+    unsigned int    output_width
+);
+extern void vp8_filter_block1d8_h6_only_sse2
+(
+    unsigned char  *src_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned char  *output_ptr,
+    int dst_ptich,
+    unsigned int    output_height,
+    const short    *vp8_filter
+);
+extern void vp8_filter_block1d16_h6_only_sse2
+(
+    unsigned char  *src_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned char  *output_ptr,
+    int dst_ptich,
+    unsigned int    output_height,
+    const short    *vp8_filter
+);
+extern void vp8_filter_block1d8_v6_only_sse2
+(
+    unsigned char *src_ptr,
+    unsigned int   src_pixels_per_line,
+    unsigned char *output_ptr,
+    int dst_ptich,
+    unsigned int   output_height,
+    const short   *vp8_filter
+);
+
+
+#if HAVE_MMX
+void vp8_sixtap_predict4x4_mmx
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    DECLARE_ALIGNED(16, unsigned short, FData2[16*16]);  /* Temp data bufffer used in filtering */
+    const short *HFilter, *VFilter;
+    HFilter = vp8_six_tap_mmx[xoffset];
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line), FData2, src_pixels_per_line, 1, 9, 8, HFilter);
+    VFilter = vp8_six_tap_mmx[yoffset];
+    vp8_filter_block1dc_v6_mmx(FData2 + 8, dst_ptr, dst_pitch, 8, 4 , 4, 4, VFilter);
+
+}
+
+
+void vp8_sixtap_predict16x16_mmx
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+
+    DECLARE_ALIGNED(16, unsigned short, FData2[24*24]);  /* Temp data bufffer used in filtering */
+
+    const short *HFilter, *VFilter;
+
+
+    HFilter = vp8_six_tap_mmx[xoffset];
+
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line),    FData2,   src_pixels_per_line, 1, 21, 32, HFilter);
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line) + 4,  FData2 + 4, src_pixels_per_line, 1, 21, 32, HFilter);
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line) + 8,  FData2 + 8, src_pixels_per_line, 1, 21, 32, HFilter);
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line) + 12, FData2 + 12, src_pixels_per_line, 1, 21, 32, HFilter);
+
+    VFilter = vp8_six_tap_mmx[yoffset];
+    vp8_filter_block1dc_v6_mmx(FData2 + 32, dst_ptr,   dst_pitch, 32, 16 , 16, 16, VFilter);
+    vp8_filter_block1dc_v6_mmx(FData2 + 36, dst_ptr + 4, dst_pitch, 32, 16 , 16, 16, VFilter);
+    vp8_filter_block1dc_v6_mmx(FData2 + 40, dst_ptr + 8, dst_pitch, 32, 16 , 16, 16, VFilter);
+    vp8_filter_block1dc_v6_mmx(FData2 + 44, dst_ptr + 12, dst_pitch, 32, 16 , 16, 16, VFilter);
+
+}
+
+
+void vp8_sixtap_predict8x8_mmx
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+
+    DECLARE_ALIGNED(16, unsigned short, FData2[256]);    /* Temp data bufffer used in filtering */
+
+    const short *HFilter, *VFilter;
+
+    HFilter = vp8_six_tap_mmx[xoffset];
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line),    FData2,   src_pixels_per_line, 1, 13, 16, HFilter);
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line) + 4,  FData2 + 4, src_pixels_per_line, 1, 13, 16, HFilter);
+
+    VFilter = vp8_six_tap_mmx[yoffset];
+    vp8_filter_block1dc_v6_mmx(FData2 + 16, dst_ptr,   dst_pitch, 16, 8 , 8, 8, VFilter);
+    vp8_filter_block1dc_v6_mmx(FData2 + 20, dst_ptr + 4, dst_pitch, 16, 8 , 8, 8, VFilter);
+
+}
+
+
+void vp8_sixtap_predict8x4_mmx
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+
+    DECLARE_ALIGNED(16, unsigned short, FData2[256]);    /* Temp data bufffer used in filtering */
+
+    const short *HFilter, *VFilter;
+
+    HFilter = vp8_six_tap_mmx[xoffset];
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line),    FData2,   src_pixels_per_line, 1, 9, 16, HFilter);
+    vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line) + 4,  FData2 + 4, src_pixels_per_line, 1, 9, 16, HFilter);
+
+    VFilter = vp8_six_tap_mmx[yoffset];
+    vp8_filter_block1dc_v6_mmx(FData2 + 16, dst_ptr,   dst_pitch, 16, 8 , 4, 8, VFilter);
+    vp8_filter_block1dc_v6_mmx(FData2 + 20, dst_ptr + 4, dst_pitch, 16, 8 , 4, 8, VFilter);
+
+}
+
+
+
+void vp8_bilinear_predict16x16_mmx
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    vp8_bilinear_predict8x8_mmx(src_ptr,   src_pixels_per_line, xoffset, yoffset, dst_ptr,   dst_pitch);
+    vp8_bilinear_predict8x8_mmx(src_ptr + 8, src_pixels_per_line, xoffset, yoffset, dst_ptr + 8, dst_pitch);
+    vp8_bilinear_predict8x8_mmx(src_ptr + 8 * src_pixels_per_line,   src_pixels_per_line, xoffset, yoffset, dst_ptr + dst_pitch * 8,   dst_pitch);
+    vp8_bilinear_predict8x8_mmx(src_ptr + 8 * src_pixels_per_line + 8, src_pixels_per_line, xoffset, yoffset, dst_ptr + dst_pitch * 8 + 8, dst_pitch);
+}
+#endif
+
+
+#if HAVE_SSE2
+void vp8_sixtap_predict16x16_sse2
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+
+)
+{
+    DECLARE_ALIGNED(16, unsigned short, FData2[24*24]);    /* Temp data bufffer used in filtering */
+
+    const short *HFilter, *VFilter;
+
+    if (xoffset)
+    {
+        if (yoffset)
+        {
+            HFilter = vp8_six_tap_mmx[xoffset];
+            vp8_filter_block1d16_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,   src_pixels_per_line, 1, 21, 32, HFilter);
+            VFilter = vp8_six_tap_mmx[yoffset];
+            vp8_filter_block1d16_v6_sse2(FData2 + 32, dst_ptr,   dst_pitch, 32, 16 , 16, dst_pitch, VFilter);
+        }
+        else
+        {
+            /* First-pass only */
+            HFilter = vp8_six_tap_mmx[xoffset];
+            vp8_filter_block1d16_h6_only_sse2(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch, 16, HFilter);
+        }
+    }
+    else
+    {
+        /* Second-pass only */
+        VFilter = vp8_six_tap_mmx[yoffset];
+        vp8_unpack_block1d16_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,   src_pixels_per_line, 21, 32);
+        vp8_filter_block1d16_v6_sse2(FData2 + 32, dst_ptr,   dst_pitch, 32, 16 , 16, dst_pitch, VFilter);
+    }
+}
+
+
+void vp8_sixtap_predict8x8_sse2
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    DECLARE_ALIGNED(16, unsigned short, FData2[256]);  /* Temp data bufffer used in filtering */
+    const short *HFilter, *VFilter;
+
+    if (xoffset)
+    {
+        if (yoffset)
+        {
+            HFilter = vp8_six_tap_mmx[xoffset];
+            vp8_filter_block1d8_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,   src_pixels_per_line, 1, 13, 16, HFilter);
+            VFilter = vp8_six_tap_mmx[yoffset];
+            vp8_filter_block1d8_v6_sse2(FData2 + 16, dst_ptr,   dst_pitch, 16, 8 , 8, dst_pitch, VFilter);
+        }
+        else
+        {
+            /* First-pass only */
+            HFilter = vp8_six_tap_mmx[xoffset];
+            vp8_filter_block1d8_h6_only_sse2(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch, 8, HFilter);
+        }
+    }
+    else
+    {
+        /* Second-pass only */
+        VFilter = vp8_six_tap_mmx[yoffset];
+        vp8_filter_block1d8_v6_only_sse2(src_ptr - (2 * src_pixels_per_line), src_pixels_per_line, dst_ptr, dst_pitch, 8, VFilter);
+    }
+}
+
+
+void vp8_sixtap_predict8x4_sse2
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    DECLARE_ALIGNED(16, unsigned short, FData2[256]);  /* Temp data bufffer used in filtering */
+    const short *HFilter, *VFilter;
+
+    if (xoffset)
+    {
+        if (yoffset)
+        {
+            HFilter = vp8_six_tap_mmx[xoffset];
+            vp8_filter_block1d8_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,   src_pixels_per_line, 1, 9, 16, HFilter);
+            VFilter = vp8_six_tap_mmx[yoffset];
+            vp8_filter_block1d8_v6_sse2(FData2 + 16, dst_ptr,   dst_pitch, 16, 8 , 4, dst_pitch, VFilter);
+        }
+        else
+        {
+            /* First-pass only */
+            HFilter = vp8_six_tap_mmx[xoffset];
+            vp8_filter_block1d8_h6_only_sse2(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch, 4, HFilter);
+        }
+    }
+    else
+    {
+        /* Second-pass only */
+        VFilter = vp8_six_tap_mmx[yoffset];
+        vp8_filter_block1d8_v6_only_sse2(src_ptr - (2 * src_pixels_per_line), src_pixels_per_line, dst_ptr, dst_pitch, 4, VFilter);
+    }
+}
+
+#endif
+
+#if HAVE_SSSE3
+
+extern void vp8_filter_block1d8_h6_ssse3
+(
+    unsigned char  *src_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned char  *output_ptr,
+    unsigned int    output_pitch,
+    unsigned int    output_height,
+    unsigned int    vp8_filter_index
+);
+
+extern void vp8_filter_block1d16_h6_ssse3
+(
+    unsigned char  *src_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned char  *output_ptr,
+    unsigned int    output_pitch,
+    unsigned int    output_height,
+    unsigned int    vp8_filter_index
+);
+
+extern void vp8_filter_block1d16_v6_ssse3
+(
+    unsigned char *src_ptr,
+    unsigned int   src_pitch,
+    unsigned char *output_ptr,
+    unsigned int   out_pitch,
+    unsigned int   output_height,
+    unsigned int   vp8_filter_index
+);
+
+extern void vp8_filter_block1d8_v6_ssse3
+(
+    unsigned char *src_ptr,
+    unsigned int   src_pitch,
+    unsigned char *output_ptr,
+    unsigned int   out_pitch,
+    unsigned int   output_height,
+    unsigned int   vp8_filter_index
+);
+
+extern void vp8_filter_block1d4_h6_ssse3
+(
+    unsigned char  *src_ptr,
+    unsigned int    src_pixels_per_line,
+    unsigned char  *output_ptr,
+    unsigned int    output_pitch,
+    unsigned int    output_height,
+    unsigned int    vp8_filter_index
+);
+
+extern void vp8_filter_block1d4_v6_ssse3
+(
+    unsigned char *src_ptr,
+    unsigned int   src_pitch,
+    unsigned char *output_ptr,
+    unsigned int   out_pitch,
+    unsigned int   output_height,
+    unsigned int   vp8_filter_index
+);
+
+void vp8_sixtap_predict16x16_ssse3
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+
+)
+{
+    DECLARE_ALIGNED(16, unsigned char, FData2[24*24]);
+
+    if (xoffset)
+    {
+        if (yoffset)
+        {
+            vp8_filter_block1d16_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                          src_pixels_per_line, FData2,
+                                          16, 21, xoffset);
+            vp8_filter_block1d16_v6_ssse3(FData2 , 16, dst_ptr, dst_pitch,
+                                          16, yoffset);
+        }
+        else
+        {
+            /* First-pass only */
+            vp8_filter_block1d16_h6_ssse3(src_ptr, src_pixels_per_line,
+                                          dst_ptr, dst_pitch, 16, xoffset);
+        }
+    }
+    else
+    {
+        if (yoffset)
+        {
+            /* Second-pass only */
+            vp8_filter_block1d16_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                          src_pixels_per_line,
+                                          dst_ptr, dst_pitch, 16, yoffset);
+        }
+        else
+        {
+            /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
+             * yoffset==0) case correctly. Add copy function here to guarantee
+             * six-tap function handles all possible offsets. */
+            vp8_copy_mem16x16(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch);
+        }
+    }
+}
+
+void vp8_sixtap_predict8x8_ssse3
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    DECLARE_ALIGNED(16, unsigned char, FData2[256]);
+
+    if (xoffset)
+    {
+        if (yoffset)
+        {
+            vp8_filter_block1d8_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                         src_pixels_per_line, FData2,
+                                         8, 13, xoffset);
+            vp8_filter_block1d8_v6_ssse3(FData2, 8, dst_ptr, dst_pitch,
+                                         8, yoffset);
+        }
+        else
+        {
+            vp8_filter_block1d8_h6_ssse3(src_ptr, src_pixels_per_line,
+                                         dst_ptr, dst_pitch, 8, xoffset);
+        }
+    }
+    else
+    {
+        if (yoffset)
+        {
+            /* Second-pass only */
+            vp8_filter_block1d8_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                         src_pixels_per_line,
+                                         dst_ptr, dst_pitch, 8, yoffset);
+        }
+        else
+        {
+            /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
+             * yoffset==0) case correctly. Add copy function here to guarantee
+             * six-tap function handles all possible offsets. */
+            vp8_copy_mem8x8(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch);
+        }
+    }
+}
+
+
+void vp8_sixtap_predict8x4_ssse3
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    DECLARE_ALIGNED(16, unsigned char, FData2[256]);
+
+    if (xoffset)
+    {
+        if (yoffset)
+        {
+            vp8_filter_block1d8_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                         src_pixels_per_line, FData2,
+                                         8, 9, xoffset);
+            vp8_filter_block1d8_v6_ssse3(FData2, 8, dst_ptr, dst_pitch,
+                                         4, yoffset);
+        }
+        else
+        {
+            /* First-pass only */
+            vp8_filter_block1d8_h6_ssse3(src_ptr, src_pixels_per_line,
+                                         dst_ptr, dst_pitch, 4, xoffset);
+        }
+    }
+    else
+    {
+        if (yoffset)
+        {
+            /* Second-pass only */
+            vp8_filter_block1d8_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                         src_pixels_per_line,
+                                         dst_ptr, dst_pitch, 4, yoffset);
+        }
+        else
+        {
+            /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
+             * yoffset==0) case correctly. Add copy function here to guarantee
+             * six-tap function handles all possible offsets. */
+            vp8_copy_mem8x4(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch);
+        }
+    }
+}
+
+void vp8_sixtap_predict4x4_ssse3
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+  DECLARE_ALIGNED(16, unsigned char, FData2[4*9]);
+
+  if (xoffset)
+  {
+      if (yoffset)
+      {
+          vp8_filter_block1d4_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                       src_pixels_per_line,
+                                       FData2, 4, 9, xoffset);
+          vp8_filter_block1d4_v6_ssse3(FData2, 4, dst_ptr, dst_pitch,
+                                       4, yoffset);
+      }
+      else
+      {
+          vp8_filter_block1d4_h6_ssse3(src_ptr, src_pixels_per_line,
+                                       dst_ptr, dst_pitch, 4, xoffset);
+      }
+  }
+  else
+  {
+      if (yoffset)
+      {
+          vp8_filter_block1d4_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
+                                       src_pixels_per_line,
+                                       dst_ptr, dst_pitch, 4, yoffset);
+      }
+      else
+      {
+        /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
+          * yoffset==0) case correctly. Add copy function here to guarantee
+          * six-tap function handles all possible offsets. */
+          int r;
+
+          for (r = 0; r < 4; r++)
+          {
+            dst_ptr[0]  = src_ptr[0];
+            dst_ptr[1]  = src_ptr[1];
+            dst_ptr[2]  = src_ptr[2];
+            dst_ptr[3]  = src_ptr[3];
+            dst_ptr     += dst_pitch;
+            src_ptr     += src_pixels_per_line;
+          }
+      }
+  }
+}
+
+#endif
diff --git a/media/libvpx/vp8/common/x86/vp8_variance_impl_mmx.asm b/media/libvpx/vp8/common/x86/vp8_variance_impl_mmx.asm
new file mode 100644
index 000000000..97f25275d
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/vp8_variance_impl_mmx.asm
@@ -0,0 +1,353 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%define mmx_filter_shift            7
+
+;void vp8_filter_block2d_bil4x4_var_mmx
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned short *HFilter,
+;    unsigned short *VFilter,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_filter_block2d_bil4x4_var_mmx) PRIVATE
+sym(vp8_filter_block2d_bil4x4_var_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    sub         rsp, 16
+    ; end prolog
+
+
+        pxor            mm6,            mm6                 ;
+        pxor            mm7,            mm7                 ;
+
+        mov             rax,            arg(4) ;HFilter             ;
+        mov             rdx,            arg(5) ;VFilter             ;
+
+        mov             rsi,            arg(0) ;ref_ptr              ;
+        mov             rdi,            arg(2) ;src_ptr              ;
+
+        mov             rcx,            4                   ;
+        pxor            mm0,            mm0                 ;
+
+        movd            mm1,            [rsi]               ;
+        movd            mm3,            [rsi+1]             ;
+
+        punpcklbw       mm1,            mm0                 ;
+        pmullw          mm1,            [rax]               ;
+
+        punpcklbw       mm3,            mm0                 ;
+        pmullw          mm3,            [rax+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        movq            mm5,            mm1
+
+%if ABI_IS_32BIT
+        add             rsi, dword ptr  arg(1) ;ref_pixels_per_line    ;
+%else
+        movsxd          r8, dword ptr  arg(1) ;ref_pixels_per_line    ;
+        add             rsi, r8
+%endif
+
+.filter_block2d_bil4x4_var_mmx_loop:
+
+        movd            mm1,            [rsi]               ;
+        movd            mm3,            [rsi+1]             ;
+
+        punpcklbw       mm1,            mm0                 ;
+        pmullw          mm1,            [rax]               ;
+
+        punpcklbw       mm3,            mm0                 ;
+        pmullw          mm3,            [rax+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        movq            mm3,            mm5                 ;
+
+        movq            mm5,            mm1                 ;
+        pmullw          mm3,            [rdx]               ;
+
+        pmullw          mm1,            [rdx+8]             ;
+        paddw           mm1,            mm3                 ;
+
+
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+        psraw           mm1,            mmx_filter_shift    ;
+
+        movd            mm3,            [rdi]               ;
+        punpcklbw       mm3,            mm0                 ;
+
+        psubw           mm1,            mm3                 ;
+        paddw           mm6,            mm1                 ;
+
+        pmaddwd         mm1,            mm1                 ;
+        paddd           mm7,            mm1                 ;
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;
+        add             rdi,            dword ptr arg(3) ;src_pixels_per_line    ;
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
+        add             rsi,            r8
+        add             rdi,            r9
+%endif
+        sub             rcx,            1                   ;
+        jnz             .filter_block2d_bil4x4_var_mmx_loop       ;
+
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rdi,            arg(6) ;sum
+        mov             rsi,            arg(7) ;sumsquared
+
+        movd            dword ptr [rdi],          mm2                 ;
+        movd            dword ptr [rsi],          mm4                 ;
+
+
+
+    ; begin epilog
+    add rsp, 16
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+
+
+;void vp8_filter_block2d_bil_var_mmx
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    unsigned short *HFilter,
+;    unsigned short *VFilter,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_filter_block2d_bil_var_mmx) PRIVATE
+sym(vp8_filter_block2d_bil_var_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 9
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    sub         rsp, 16
+    ; end prolog
+
+        pxor            mm6,            mm6                 ;
+        pxor            mm7,            mm7                 ;
+        mov             rax,            arg(5) ;HFilter             ;
+
+        mov             rdx,            arg(6) ;VFilter             ;
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+
+        pxor            mm0,            mm0                 ;
+        movq            mm1,            [rsi]               ;
+
+        movq            mm3,            [rsi+1]             ;
+        movq            mm2,            mm1                 ;
+
+        movq            mm4,            mm3                 ;
+        punpcklbw       mm1,            mm0                 ;
+
+        punpckhbw       mm2,            mm0                 ;
+        pmullw          mm1,            [rax]               ;
+
+        pmullw          mm2,            [rax]               ;
+        punpcklbw       mm3,            mm0                 ;
+
+        punpckhbw       mm4,            mm0                 ;
+        pmullw          mm3,            [rax+8]             ;
+
+        pmullw          mm4,            [rax+8]             ;
+        paddw           mm1,            mm3                 ;
+
+        paddw           mm2,            mm4                 ;
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm2,            mmx_filter_shift    ;
+        movq            mm5,            mm1
+
+        packuswb        mm5,            mm2                 ;
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
+        add             rsi,            r8
+%endif
+
+.filter_block2d_bil_var_mmx_loop:
+
+        movq            mm1,            [rsi]               ;
+        movq            mm3,            [rsi+1]             ;
+
+        movq            mm2,            mm1                 ;
+        movq            mm4,            mm3                 ;
+
+        punpcklbw       mm1,            mm0                 ;
+        punpckhbw       mm2,            mm0                 ;
+
+        pmullw          mm1,            [rax]               ;
+        pmullw          mm2,            [rax]               ;
+
+        punpcklbw       mm3,            mm0                 ;
+        punpckhbw       mm4,            mm0                 ;
+
+        pmullw          mm3,            [rax+8]             ;
+        pmullw          mm4,            [rax+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm2,            mm4                 ;
+
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+        psraw           mm1,            mmx_filter_shift    ;
+
+        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
+        psraw           mm2,            mmx_filter_shift    ;
+
+        movq            mm3,            mm5                 ;
+        movq            mm4,            mm5                 ;
+
+        punpcklbw       mm3,            mm0                 ;
+        punpckhbw       mm4,            mm0                 ;
+
+        movq            mm5,            mm1                 ;
+        packuswb        mm5,            mm2                 ;
+
+        pmullw          mm3,            [rdx]               ;
+        pmullw          mm4,            [rdx]               ;
+
+        pmullw          mm1,            [rdx+8]             ;
+        pmullw          mm2,            [rdx+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm2,            mm4                 ;
+
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        psraw           mm2,            mmx_filter_shift    ;
+
+        movq            mm3,            [rdi]               ;
+        movq            mm4,            mm3                 ;
+
+        punpcklbw       mm3,            mm0                 ;
+        punpckhbw       mm4,            mm0                 ;
+
+        psubw           mm1,            mm3                 ;
+        psubw           mm2,            mm4                 ;
+
+        paddw           mm6,            mm1                 ;
+        pmaddwd         mm1,            mm1                 ;
+
+        paddw           mm6,            mm2                 ;
+        pmaddwd         mm2,            mm2                 ;
+
+        paddd           mm7,            mm1                 ;
+        paddd           mm7,            mm2                 ;
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;
+        add             rdi,            dword ptr arg(3) ;src_pixels_per_line    ;
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line    ;
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line    ;
+        add             rsi,            r8
+        add             rdi,            r9
+%endif
+        sub             rcx,            1                   ;
+        jnz             .filter_block2d_bil_var_mmx_loop       ;
+
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rdi,            arg(7) ;sum
+        mov             rsi,            arg(8) ;sumsquared
+
+        movd            dword ptr [rdi],          mm2                 ;
+        movd            dword ptr [rsi],          mm4                 ;
+
+    ; begin epilog
+    add rsp, 16
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+SECTION_RODATA
+;short mmx_bi_rd[4] = { 64, 64, 64, 64};
+align 16
+mmx_bi_rd:
+    times 4 dw 64
diff --git a/media/libvpx/vp8/common/x86/vp8_variance_mmx.c b/media/libvpx/vp8/common/x86/vp8_variance_mmx.c
new file mode 100644
index 000000000..e594b1e65
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/vp8_variance_mmx.c
@@ -0,0 +1,244 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vp8_rtcd.h"
+#include "vpx_config.h"
+#include "vp8/common/variance.h"
+#include "vpx_ports/mem.h"
+#include "vp8/common/x86/filter_x86.h"
+
+extern void filter_block1d_h6_mmx
+(
+    const unsigned char *src_ptr,
+    unsigned short *output_ptr,
+    unsigned int src_pixels_per_line,
+    unsigned int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    short *filter
+);
+extern void filter_block1d_v6_mmx
+(
+    const short *src_ptr,
+    unsigned char *output_ptr,
+    unsigned int pixels_per_line,
+    unsigned int pixel_step,
+    unsigned int output_height,
+    unsigned int output_width,
+    short *filter
+);
+
+extern void vp8_filter_block2d_bil4x4_var_mmx
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    const short *HFilter,
+    const short *VFilter,
+    int *sum,
+    unsigned int *sumsquared
+);
+extern void vp8_filter_block2d_bil_var_mmx
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    const short *HFilter,
+    const short *VFilter,
+    int *sum,
+    unsigned int *sumsquared
+);
+
+unsigned int vp8_sub_pixel_variance4x4_mmx
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse)
+
+{
+    int xsum;
+    unsigned int xxsum;
+    vp8_filter_block2d_bil4x4_var_mmx(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum, &xxsum
+    );
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 4));
+}
+
+
+unsigned int vp8_sub_pixel_variance8x8_mmx
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+
+    int xsum;
+    unsigned int xxsum;
+    vp8_filter_block2d_bil_var_mmx(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 8,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum, &xxsum
+    );
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 6));
+}
+
+unsigned int vp8_sub_pixel_variance16x16_mmx
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+
+    int xsum0, xsum1;
+    unsigned int xxsum0, xxsum1;
+
+
+    vp8_filter_block2d_bil_var_mmx(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum0, &xxsum0
+    );
+
+
+    vp8_filter_block2d_bil_var_mmx(
+        src_ptr + 8, src_pixels_per_line,
+        dst_ptr + 8, dst_pixels_per_line, 16,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum1, &xxsum1
+    );
+
+    xsum0 += xsum1;
+    xxsum0 += xxsum1;
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+
+
+}
+
+unsigned int vp8_sub_pixel_variance16x8_mmx
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum0, xsum1;
+    unsigned int xxsum0, xxsum1;
+
+
+    vp8_filter_block2d_bil_var_mmx(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 8,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum0, &xxsum0
+    );
+
+
+    vp8_filter_block2d_bil_var_mmx(
+        src_ptr + 8, src_pixels_per_line,
+        dst_ptr + 8, dst_pixels_per_line, 8,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum1, &xxsum1
+    );
+
+    xsum0 += xsum1;
+    xxsum0 += xxsum1;
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
+}
+
+unsigned int vp8_sub_pixel_variance8x16_mmx
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum;
+    unsigned int xxsum;
+    vp8_filter_block2d_bil_var_mmx(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum, &xxsum
+    );
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 7));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_h_mmx(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    unsigned int *sse)
+{
+    return vp8_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 4, 0,
+                                           ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_v_mmx(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    unsigned int *sse)
+{
+    return vp8_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 0, 4,
+                                           ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_hv_mmx(
+    const unsigned char *src_ptr,
+    int  source_stride,
+    const unsigned char *ref_ptr,
+    int  recon_stride,
+    unsigned int *sse)
+{
+    return vp8_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 4, 4,
+                                           ref_ptr, recon_stride, sse);
+}
diff --git a/media/libvpx/vp8/common/x86/vp8_variance_sse2.c b/media/libvpx/vp8/common/x86/vp8_variance_sse2.c
new file mode 100644
index 000000000..1c15ed880
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/vp8_variance_sse2.c
@@ -0,0 +1,403 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "./vp8_rtcd.h"
+#include "vpx_config.h"
+#include "vp8/common/variance.h"
+#include "vpx_ports/mem.h"
+#include "vp8/common/x86/filter_x86.h"
+
+extern void filter_block1d_h6_mmx(const unsigned char *src_ptr, unsigned short *output_ptr, unsigned int src_pixels_per_line, unsigned int pixel_step, unsigned int output_height, unsigned int output_width, short *filter);
+extern void filter_block1d_v6_mmx(const short *src_ptr, unsigned char *output_ptr, unsigned int pixels_per_line, unsigned int pixel_step, unsigned int output_height, unsigned int output_width, short *filter);
+extern void filter_block1d8_h6_sse2(const unsigned char *src_ptr, unsigned short *output_ptr, unsigned int src_pixels_per_line, unsigned int pixel_step, unsigned int output_height, unsigned int output_width, short *filter);
+extern void filter_block1d8_v6_sse2(const short *src_ptr, unsigned char *output_ptr, unsigned int pixels_per_line, unsigned int pixel_step, unsigned int output_height, unsigned int output_width, short *filter);
+
+extern void vp8_filter_block2d_bil4x4_var_mmx
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    const short *HFilter,
+    const short *VFilter,
+    int *sum,
+    unsigned int *sumsquared
+);
+
+void vp8_filter_block2d_bil_var_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int  xoffset,
+    int  yoffset,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_vert_variance8x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_vert_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_variance8x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_vert_variance8x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_vert_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+
+unsigned int vp8_sub_pixel_variance4x4_wmt
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum;
+    unsigned int xxsum;
+    vp8_filter_block2d_bil4x4_var_mmx(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line,
+        vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
+        &xsum, &xxsum
+    );
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 4));
+}
+
+
+unsigned int vp8_sub_pixel_variance8x8_wmt
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum;
+    unsigned int xxsum;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum, &xxsum);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum, &xxsum);
+    }
+
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 6));
+}
+
+unsigned int vp8_sub_pixel_variance16x16_wmt
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum0, xsum1;
+    unsigned int xxsum0, xxsum1;
+
+
+    /* note we could avoid these if statements if the calling function
+     * just called the appropriate functions inside.
+     */
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum0, &xxsum0
+        );
+
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr + 8, src_pixels_per_line,
+            dst_ptr + 8, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum1, &xxsum1
+        );
+        xsum0 += xsum1;
+        xxsum0 += xxsum1;
+    }
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+unsigned int vp8_sub_pixel_variance16x8_wmt
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+
+)
+{
+    int xsum0, xsum1;
+    unsigned int xxsum0, xxsum1;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum0, &xxsum0);
+
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr + 8, src_pixels_per_line,
+            dst_ptr + 8, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum1, &xxsum1);
+        xsum0 += xsum1;
+        xxsum0 += xxsum1;
+    }
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
+}
+
+unsigned int vp8_sub_pixel_variance8x16_wmt
+(
+    const unsigned char  *src_ptr,
+    int  src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    const unsigned char *dst_ptr,
+    int dst_pixels_per_line,
+    unsigned int *sse
+)
+{
+    int xsum;
+    unsigned int xxsum;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum, &xxsum);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum, &xxsum);
+    }
+
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 7));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_h_wmt(
+    const unsigned char *src_ptr,
+    int  src_pixels_per_line,
+    const unsigned char *dst_ptr,
+    int  dst_pixels_per_line,
+    unsigned int *sse)
+{
+    int xsum0;
+    unsigned int xxsum0;
+
+    vp8_half_horiz_variance16x_h_sse2(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        &xsum0, &xxsum0);
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_v_wmt(
+    const unsigned char *src_ptr,
+    int  src_pixels_per_line,
+    const unsigned char *dst_ptr,
+    int  dst_pixels_per_line,
+    unsigned int *sse)
+{
+    int xsum0;
+    unsigned int xxsum0;
+    vp8_half_vert_variance16x_h_sse2(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        &xsum0, &xxsum0);
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_hv_wmt(
+    const unsigned char *src_ptr,
+    int  src_pixels_per_line,
+    const unsigned char *dst_ptr,
+    int  dst_pixels_per_line,
+    unsigned int *sse)
+{
+    int xsum0;
+    unsigned int xxsum0;
+
+    vp8_half_horiz_vert_variance16x_h_sse2(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        &xsum0, &xxsum0);
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
diff --git a/media/libvpx/vp8/decoder/dboolhuff.c b/media/libvpx/vp8/decoder/dboolhuff.c
new file mode 100644
index 000000000..b874d4c46
--- /dev/null
+++ b/media/libvpx/vp8/decoder/dboolhuff.c
@@ -0,0 +1,76 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "dboolhuff.h"
+#include "vp8/common/common.h"
+
+int vp8dx_start_decode(BOOL_DECODER *br,
+                       const unsigned char *source,
+                       unsigned int source_sz,
+                       vpx_decrypt_cb decrypt_cb,
+                       void *decrypt_state)
+{
+    br->user_buffer_end = source+source_sz;
+    br->user_buffer     = source;
+    br->value    = 0;
+    br->count    = -8;
+    br->range    = 255;
+    br->decrypt_cb = decrypt_cb;
+    br->decrypt_state = decrypt_state;
+
+    if (source_sz && !source)
+        return 1;
+
+    /* Populate the buffer */
+    vp8dx_bool_decoder_fill(br);
+
+    return 0;
+}
+
+void vp8dx_bool_decoder_fill(BOOL_DECODER *br)
+{
+    const unsigned char *bufptr = br->user_buffer;
+    VP8_BD_VALUE value = br->value;
+    int count = br->count;
+    int shift = VP8_BD_VALUE_SIZE - CHAR_BIT - (count + CHAR_BIT);
+    size_t bytes_left = br->user_buffer_end - bufptr;
+    size_t bits_left = bytes_left * CHAR_BIT;
+    int x = (int)(shift + CHAR_BIT - bits_left);
+    int loop_end = 0;
+    unsigned char decrypted[sizeof(VP8_BD_VALUE) + 1];
+
+    if (br->decrypt_cb) {
+        size_t n = MIN(sizeof(decrypted), bytes_left);
+        br->decrypt_cb(br->decrypt_state, bufptr, decrypted, (int)n);
+        bufptr = decrypted;
+    }
+
+    if(x >= 0)
+    {
+        count += VP8_LOTS_OF_BITS;
+        loop_end = x;
+    }
+
+    if (x < 0 || bits_left)
+    {
+        while(shift >= loop_end)
+        {
+            count += CHAR_BIT;
+            value |= (VP8_BD_VALUE)*bufptr << shift;
+            ++bufptr;
+            ++br->user_buffer;
+            shift -= CHAR_BIT;
+        }
+    }
+
+    br->value = value;
+    br->count = count;
+}
diff --git a/media/libvpx/vp8/decoder/dboolhuff.h b/media/libvpx/vp8/decoder/dboolhuff.h
new file mode 100644
index 000000000..51c5adc28
--- /dev/null
+++ b/media/libvpx/vp8/decoder/dboolhuff.h
@@ -0,0 +1,141 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_DECODER_DBOOLHUFF_H_
+#define VP8_DECODER_DBOOLHUFF_H_
+
+#include <stddef.h>
+#include <limits.h>
+
+#include "vpx_config.h"
+#include "vpx_ports/mem.h"
+#include "vpx/vp8dx.h"
+#include "vpx/vpx_integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef size_t VP8_BD_VALUE;
+
+#define VP8_BD_VALUE_SIZE ((int)sizeof(VP8_BD_VALUE)*CHAR_BIT)
+
+/*This is meant to be a large, positive constant that can still be efficiently
+   loaded as an immediate (on platforms like ARM, for example).
+  Even relatively modest values like 100 would work fine.*/
+#define VP8_LOTS_OF_BITS (0x40000000)
+
+typedef struct
+{
+    const unsigned char *user_buffer_end;
+    const unsigned char *user_buffer;
+    VP8_BD_VALUE         value;
+    int                  count;
+    unsigned int         range;
+    vpx_decrypt_cb       decrypt_cb;
+    void                *decrypt_state;
+} BOOL_DECODER;
+
+DECLARE_ALIGNED(16, extern const unsigned char, vp8_norm[256]);
+
+int vp8dx_start_decode(BOOL_DECODER *br,
+                       const unsigned char *source,
+                       unsigned int source_sz,
+                       vpx_decrypt_cb decrypt_cb,
+                       void *decrypt_state);
+
+void vp8dx_bool_decoder_fill(BOOL_DECODER *br);
+
+
+static int vp8dx_decode_bool(BOOL_DECODER *br, int probability) {
+    unsigned int bit = 0;
+    VP8_BD_VALUE value;
+    unsigned int split;
+    VP8_BD_VALUE bigsplit;
+    int count;
+    unsigned int range;
+
+    split = 1 + (((br->range - 1) * probability) >> 8);
+
+    if(br->count < 0)
+        vp8dx_bool_decoder_fill(br);
+
+    value = br->value;
+    count = br->count;
+
+    bigsplit = (VP8_BD_VALUE)split << (VP8_BD_VALUE_SIZE - 8);
+
+    range = split;
+
+    if (value >= bigsplit)
+    {
+        range = br->range - split;
+        value = value - bigsplit;
+        bit = 1;
+    }
+
+    {
+        register unsigned int shift = vp8_norm[range];
+        range <<= shift;
+        value <<= shift;
+        count -= shift;
+    }
+    br->value = value;
+    br->count = count;
+    br->range = range;
+
+    return bit;
+}
+
+static int vp8_decode_value(BOOL_DECODER *br, int bits)
+{
+    int z = 0;
+    int bit;
+
+    for (bit = bits - 1; bit >= 0; bit--)
+    {
+        z |= (vp8dx_decode_bool(br, 0x80) << bit);
+    }
+
+    return z;
+}
+
+static int vp8dx_bool_error(BOOL_DECODER *br)
+{
+    /* Check if we have reached the end of the buffer.
+     *
+     * Variable 'count' stores the number of bits in the 'value' buffer, minus
+     * 8. The top byte is part of the algorithm, and the remainder is buffered
+     * to be shifted into it. So if count == 8, the top 16 bits of 'value' are
+     * occupied, 8 for the algorithm and 8 in the buffer.
+     *
+     * When reading a byte from the user's buffer, count is filled with 8 and
+     * one byte is filled into the value buffer. When we reach the end of the
+     * data, count is additionally filled with VP8_LOTS_OF_BITS. So when
+     * count == VP8_LOTS_OF_BITS - 1, the user's data has been exhausted.
+     */
+    if ((br->count > VP8_BD_VALUE_SIZE) && (br->count < VP8_LOTS_OF_BITS))
+    {
+       /* We have tried to decode bits after the end of
+        * stream was encountered.
+        */
+        return 1;
+    }
+
+    /* No error. */
+    return 0;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_DBOOLHUFF_H_
diff --git a/media/libvpx/vp8/decoder/decodeframe.c b/media/libvpx/vp8/decoder/decodeframe.c
new file mode 100644
index 000000000..4d247cbf8
--- /dev/null
+++ b/media/libvpx/vp8/decoder/decodeframe.c
@@ -0,0 +1,1397 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "./vpx_scale_rtcd.h"
+#include "onyxd_int.h"
+#include "vp8/common/header.h"
+#include "vp8/common/reconintra4x4.h"
+#include "vp8/common/reconinter.h"
+#include "detokenize.h"
+#include "vp8/common/common.h"
+#include "vp8/common/invtrans.h"
+#include "vp8/common/alloccommon.h"
+#include "vp8/common/entropymode.h"
+#include "vp8/common/quant_common.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vp8/common/setupintrarecon.h"
+
+#include "decodemv.h"
+#include "vp8/common/extend.h"
+#if CONFIG_ERROR_CONCEALMENT
+#include "error_concealment.h"
+#endif
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/threading.h"
+#include "decoderthreading.h"
+#include "dboolhuff.h"
+
+#include <assert.h>
+#include <stdio.h>
+
+void vp8cx_init_de_quantizer(VP8D_COMP *pbi)
+{
+    int Q;
+    VP8_COMMON *const pc = & pbi->common;
+
+    for (Q = 0; Q < QINDEX_RANGE; Q++)
+    {
+        pc->Y1dequant[Q][0] = (short)vp8_dc_quant(Q, pc->y1dc_delta_q);
+        pc->Y2dequant[Q][0] = (short)vp8_dc2quant(Q, pc->y2dc_delta_q);
+        pc->UVdequant[Q][0] = (short)vp8_dc_uv_quant(Q, pc->uvdc_delta_q);
+
+        pc->Y1dequant[Q][1] = (short)vp8_ac_yquant(Q);
+        pc->Y2dequant[Q][1] = (short)vp8_ac2quant(Q, pc->y2ac_delta_q);
+        pc->UVdequant[Q][1] = (short)vp8_ac_uv_quant(Q, pc->uvac_delta_q);
+    }
+}
+
+void vp8_mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd)
+{
+    int i;
+    int QIndex;
+    MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
+    VP8_COMMON *const pc = & pbi->common;
+
+    /* Decide whether to use the default or alternate baseline Q value. */
+    if (xd->segmentation_enabled)
+    {
+        /* Abs Value */
+        if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
+            QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
+
+        /* Delta Value */
+        else
+            QIndex = pc->base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
+
+        QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;    /* Clamp to valid range */
+    }
+    else
+        QIndex = pc->base_qindex;
+
+    /* Set up the macroblock dequant constants */
+    xd->dequant_y1_dc[0] = 1;
+    xd->dequant_y1[0] = pc->Y1dequant[QIndex][0];
+    xd->dequant_y2[0] = pc->Y2dequant[QIndex][0];
+    xd->dequant_uv[0] = pc->UVdequant[QIndex][0];
+
+    for (i = 1; i < 16; i++)
+    {
+        xd->dequant_y1_dc[i] =
+        xd->dequant_y1[i] = pc->Y1dequant[QIndex][1];
+        xd->dequant_y2[i] = pc->Y2dequant[QIndex][1];
+        xd->dequant_uv[i] = pc->UVdequant[QIndex][1];
+    }
+}
+
+static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
+                              unsigned int mb_idx)
+{
+    MB_PREDICTION_MODE mode;
+    int i;
+#if CONFIG_ERROR_CONCEALMENT
+    int corruption_detected = 0;
+#else
+    (void)mb_idx;
+#endif
+
+    if (xd->mode_info_context->mbmi.mb_skip_coeff)
+    {
+        vp8_reset_mb_tokens_context(xd);
+    }
+    else if (!vp8dx_bool_error(xd->current_bc))
+    {
+        int eobtotal;
+        eobtotal = vp8_decode_mb_tokens(pbi, xd);
+
+        /* Special case:  Force the loopfilter to skip when eobtotal is zero */
+        xd->mode_info_context->mbmi.mb_skip_coeff = (eobtotal==0);
+    }
+
+    mode = xd->mode_info_context->mbmi.mode;
+
+    if (xd->segmentation_enabled)
+        vp8_mb_init_dequantizer(pbi, xd);
+
+
+#if CONFIG_ERROR_CONCEALMENT
+
+    if(pbi->ec_active)
+    {
+        int throw_residual;
+        /* When we have independent partitions we can apply residual even
+         * though other partitions within the frame are corrupt.
+         */
+        throw_residual = (!pbi->independent_partitions &&
+                          pbi->frame_corrupt_residual);
+        throw_residual = (throw_residual || vp8dx_bool_error(xd->current_bc));
+
+        if ((mb_idx >= pbi->mvs_corrupt_from_mb || throw_residual))
+        {
+            /* MB with corrupt residuals or corrupt mode/motion vectors.
+             * Better to use the predictor as reconstruction.
+             */
+            pbi->frame_corrupt_residual = 1;
+            memset(xd->qcoeff, 0, sizeof(xd->qcoeff));
+            vp8_conceal_corrupt_mb(xd);
+
+
+            corruption_detected = 1;
+
+            /* force idct to be skipped for B_PRED and use the
+             * prediction only for reconstruction
+             * */
+            memset(xd->eobs, 0, 25);
+        }
+    }
+#endif
+
+    /* do prediction */
+    if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
+    {
+        vp8_build_intra_predictors_mbuv_s(xd,
+                                          xd->recon_above[1],
+                                          xd->recon_above[2],
+                                          xd->recon_left[1],
+                                          xd->recon_left[2],
+                                          xd->recon_left_stride[1],
+                                          xd->dst.u_buffer, xd->dst.v_buffer,
+                                          xd->dst.uv_stride);
+
+        if (mode != B_PRED)
+        {
+            vp8_build_intra_predictors_mby_s(xd,
+                                                 xd->recon_above[0],
+                                                 xd->recon_left[0],
+                                                 xd->recon_left_stride[0],
+                                                 xd->dst.y_buffer,
+                                                 xd->dst.y_stride);
+        }
+        else
+        {
+            short *DQC = xd->dequant_y1;
+            int dst_stride = xd->dst.y_stride;
+
+            /* clear out residual eob info */
+            if(xd->mode_info_context->mbmi.mb_skip_coeff)
+                memset(xd->eobs, 0, 25);
+
+            intra_prediction_down_copy(xd, xd->recon_above[0] + 16);
+
+            for (i = 0; i < 16; i++)
+            {
+                BLOCKD *b = &xd->block[i];
+                unsigned char *dst = xd->dst.y_buffer + b->offset;
+                B_PREDICTION_MODE b_mode =
+                    xd->mode_info_context->bmi[i].as_mode;
+                unsigned char *Above = dst - dst_stride;
+                unsigned char *yleft = dst - 1;
+                int left_stride = dst_stride;
+                unsigned char top_left = Above[-1];
+
+                vp8_intra4x4_predict(Above, yleft, left_stride, b_mode,
+                                     dst, dst_stride, top_left);
+
+                if (xd->eobs[i])
+                {
+                    if (xd->eobs[i] > 1)
+                    {
+                    vp8_dequant_idct_add(b->qcoeff, DQC, dst, dst_stride);
+                    }
+                    else
+                    {
+                        vp8_dc_only_idct_add
+                            (b->qcoeff[0] * DQC[0],
+                                dst, dst_stride,
+                                dst, dst_stride);
+                        memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0]));
+                    }
+                }
+            }
+        }
+    }
+    else
+    {
+        vp8_build_inter_predictors_mb(xd);
+    }
+
+
+#if CONFIG_ERROR_CONCEALMENT
+    if (corruption_detected)
+    {
+        return;
+    }
+#endif
+
+    if(!xd->mode_info_context->mbmi.mb_skip_coeff)
+    {
+        /* dequantization and idct */
+        if (mode != B_PRED)
+        {
+            short *DQC = xd->dequant_y1;
+
+            if (mode != SPLITMV)
+            {
+                BLOCKD *b = &xd->block[24];
+
+                /* do 2nd order transform on the dc block */
+                if (xd->eobs[24] > 1)
+                {
+                    vp8_dequantize_b(b, xd->dequant_y2);
+
+                    vp8_short_inv_walsh4x4(&b->dqcoeff[0],
+                        xd->qcoeff);
+                    memset(b->qcoeff, 0, 16 * sizeof(b->qcoeff[0]));
+                }
+                else
+                {
+                    b->dqcoeff[0] = b->qcoeff[0] * xd->dequant_y2[0];
+                    vp8_short_inv_walsh4x4_1(&b->dqcoeff[0],
+                        xd->qcoeff);
+                    memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0]));
+                }
+
+                /* override the dc dequant constant in order to preserve the
+                 * dc components
+                 */
+                DQC = xd->dequant_y1_dc;
+            }
+
+            vp8_dequant_idct_add_y_block
+                            (xd->qcoeff, DQC,
+                             xd->dst.y_buffer,
+                             xd->dst.y_stride, xd->eobs);
+        }
+
+        vp8_dequant_idct_add_uv_block
+                        (xd->qcoeff+16*16, xd->dequant_uv,
+                         xd->dst.u_buffer, xd->dst.v_buffer,
+                         xd->dst.uv_stride, xd->eobs+16);
+    }
+}
+
+static int get_delta_q(vp8_reader *bc, int prev, int *q_update)
+{
+    int ret_val = 0;
+
+    if (vp8_read_bit(bc))
+    {
+        ret_val = vp8_read_literal(bc, 4);
+
+        if (vp8_read_bit(bc))
+            ret_val = -ret_val;
+    }
+
+    /* Trigger a quantizer update if the delta-q value has changed */
+    if (ret_val != prev)
+        *q_update = 1;
+
+    return ret_val;
+}
+
+#ifdef PACKET_TESTING
+#include <stdio.h>
+FILE *vpxlog = 0;
+#endif
+
+static void yv12_extend_frame_top_c(YV12_BUFFER_CONFIG *ybf)
+{
+    int i;
+    unsigned char *src_ptr1;
+    unsigned char *dest_ptr1;
+
+    unsigned int Border;
+    int plane_stride;
+
+    /***********/
+    /* Y Plane */
+    /***********/
+    Border = ybf->border;
+    plane_stride = ybf->y_stride;
+    src_ptr1 = ybf->y_buffer - Border;
+    dest_ptr1 = src_ptr1 - (Border * plane_stride);
+
+    for (i = 0; i < (int)Border; i++)
+    {
+        memcpy(dest_ptr1, src_ptr1, plane_stride);
+        dest_ptr1 += plane_stride;
+    }
+
+
+    /***********/
+    /* U Plane */
+    /***********/
+    plane_stride = ybf->uv_stride;
+    Border /= 2;
+    src_ptr1 = ybf->u_buffer - Border;
+    dest_ptr1 = src_ptr1 - (Border * plane_stride);
+
+    for (i = 0; i < (int)(Border); i++)
+    {
+        memcpy(dest_ptr1, src_ptr1, plane_stride);
+        dest_ptr1 += plane_stride;
+    }
+
+    /***********/
+    /* V Plane */
+    /***********/
+
+    src_ptr1 = ybf->v_buffer - Border;
+    dest_ptr1 = src_ptr1 - (Border * plane_stride);
+
+    for (i = 0; i < (int)(Border); i++)
+    {
+        memcpy(dest_ptr1, src_ptr1, plane_stride);
+        dest_ptr1 += plane_stride;
+    }
+}
+
+static void yv12_extend_frame_bottom_c(YV12_BUFFER_CONFIG *ybf)
+{
+    int i;
+    unsigned char *src_ptr1, *src_ptr2;
+    unsigned char *dest_ptr2;
+
+    unsigned int Border;
+    int plane_stride;
+    int plane_height;
+
+    /***********/
+    /* Y Plane */
+    /***********/
+    Border = ybf->border;
+    plane_stride = ybf->y_stride;
+    plane_height = ybf->y_height;
+
+    src_ptr1 = ybf->y_buffer - Border;
+    src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
+    dest_ptr2 = src_ptr2 + plane_stride;
+
+    for (i = 0; i < (int)Border; i++)
+    {
+        memcpy(dest_ptr2, src_ptr2, plane_stride);
+        dest_ptr2 += plane_stride;
+    }
+
+
+    /***********/
+    /* U Plane */
+    /***********/
+    plane_stride = ybf->uv_stride;
+    plane_height = ybf->uv_height;
+    Border /= 2;
+
+    src_ptr1 = ybf->u_buffer - Border;
+    src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
+    dest_ptr2 = src_ptr2 + plane_stride;
+
+    for (i = 0; i < (int)(Border); i++)
+    {
+        memcpy(dest_ptr2, src_ptr2, plane_stride);
+        dest_ptr2 += plane_stride;
+    }
+
+    /***********/
+    /* V Plane */
+    /***********/
+
+    src_ptr1 = ybf->v_buffer - Border;
+    src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
+    dest_ptr2 = src_ptr2 + plane_stride;
+
+    for (i = 0; i < (int)(Border); i++)
+    {
+        memcpy(dest_ptr2, src_ptr2, plane_stride);
+        dest_ptr2 += plane_stride;
+    }
+}
+
+static void yv12_extend_frame_left_right_c(YV12_BUFFER_CONFIG *ybf,
+                                           unsigned char *y_src,
+                                           unsigned char *u_src,
+                                           unsigned char *v_src)
+{
+    int i;
+    unsigned char *src_ptr1, *src_ptr2;
+    unsigned char *dest_ptr1, *dest_ptr2;
+
+    unsigned int Border;
+    int plane_stride;
+    int plane_height;
+    int plane_width;
+
+    /***********/
+    /* Y Plane */
+    /***********/
+    Border = ybf->border;
+    plane_stride = ybf->y_stride;
+    plane_height = 16;
+    plane_width = ybf->y_width;
+
+    /* copy the left and right most columns out */
+    src_ptr1 = y_src;
+    src_ptr2 = src_ptr1 + plane_width - 1;
+    dest_ptr1 = src_ptr1 - Border;
+    dest_ptr2 = src_ptr2 + 1;
+
+    for (i = 0; i < plane_height; i++)
+    {
+        memset(dest_ptr1, src_ptr1[0], Border);
+        memset(dest_ptr2, src_ptr2[0], Border);
+        src_ptr1  += plane_stride;
+        src_ptr2  += plane_stride;
+        dest_ptr1 += plane_stride;
+        dest_ptr2 += plane_stride;
+    }
+
+    /***********/
+    /* U Plane */
+    /***********/
+    plane_stride = ybf->uv_stride;
+    plane_height = 8;
+    plane_width = ybf->uv_width;
+    Border /= 2;
+
+    /* copy the left and right most columns out */
+    src_ptr1 = u_src;
+    src_ptr2 = src_ptr1 + plane_width - 1;
+    dest_ptr1 = src_ptr1 - Border;
+    dest_ptr2 = src_ptr2 + 1;
+
+    for (i = 0; i < plane_height; i++)
+    {
+        memset(dest_ptr1, src_ptr1[0], Border);
+        memset(dest_ptr2, src_ptr2[0], Border);
+        src_ptr1  += plane_stride;
+        src_ptr2  += plane_stride;
+        dest_ptr1 += plane_stride;
+        dest_ptr2 += plane_stride;
+    }
+
+    /***********/
+    /* V Plane */
+    /***********/
+
+    /* copy the left and right most columns out */
+    src_ptr1 = v_src;
+    src_ptr2 = src_ptr1 + plane_width - 1;
+    dest_ptr1 = src_ptr1 - Border;
+    dest_ptr2 = src_ptr2 + 1;
+
+    for (i = 0; i < plane_height; i++)
+    {
+        memset(dest_ptr1, src_ptr1[0], Border);
+        memset(dest_ptr2, src_ptr2[0], Border);
+        src_ptr1  += plane_stride;
+        src_ptr2  += plane_stride;
+        dest_ptr1 += plane_stride;
+        dest_ptr2 += plane_stride;
+    }
+}
+
+static void decode_mb_rows(VP8D_COMP *pbi)
+{
+    VP8_COMMON *const pc = & pbi->common;
+    MACROBLOCKD *const xd  = & pbi->mb;
+
+    MODE_INFO *lf_mic = xd->mode_info_context;
+
+    int ibc = 0;
+    int num_part = 1 << pc->multi_token_partition;
+
+    int recon_yoffset, recon_uvoffset;
+    int mb_row, mb_col;
+    int mb_idx = 0;
+
+    YV12_BUFFER_CONFIG *yv12_fb_new = pbi->dec_fb_ref[INTRA_FRAME];
+
+    int recon_y_stride = yv12_fb_new->y_stride;
+    int recon_uv_stride = yv12_fb_new->uv_stride;
+
+    unsigned char *ref_buffer[MAX_REF_FRAMES][3];
+    unsigned char *dst_buffer[3];
+    unsigned char *lf_dst[3];
+    unsigned char *eb_dst[3];
+    int i;
+    int ref_fb_corrupted[MAX_REF_FRAMES];
+
+    ref_fb_corrupted[INTRA_FRAME] = 0;
+
+    for(i = 1; i < MAX_REF_FRAMES; i++)
+    {
+        YV12_BUFFER_CONFIG *this_fb = pbi->dec_fb_ref[i];
+
+        ref_buffer[i][0] = this_fb->y_buffer;
+        ref_buffer[i][1] = this_fb->u_buffer;
+        ref_buffer[i][2] = this_fb->v_buffer;
+
+        ref_fb_corrupted[i] = this_fb->corrupted;
+    }
+
+    /* Set up the buffer pointers */
+    eb_dst[0] = lf_dst[0] = dst_buffer[0] = yv12_fb_new->y_buffer;
+    eb_dst[1] = lf_dst[1] = dst_buffer[1] = yv12_fb_new->u_buffer;
+    eb_dst[2] = lf_dst[2] = dst_buffer[2] = yv12_fb_new->v_buffer;
+
+    xd->up_available = 0;
+
+    /* Initialize the loop filter for this frame. */
+    if(pc->filter_level)
+        vp8_loop_filter_frame_init(pc, xd, pc->filter_level);
+
+    vp8_setup_intra_recon_top_line(yv12_fb_new);
+
+    /* Decode the individual macro block */
+    for (mb_row = 0; mb_row < pc->mb_rows; mb_row++)
+    {
+        if (num_part > 1)
+        {
+            xd->current_bc = & pbi->mbc[ibc];
+            ibc++;
+
+            if (ibc == num_part)
+                ibc = 0;
+        }
+
+        recon_yoffset = mb_row * recon_y_stride * 16;
+        recon_uvoffset = mb_row * recon_uv_stride * 8;
+
+        /* reset contexts */
+        xd->above_context = pc->above_context;
+        memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES));
+
+        xd->left_available = 0;
+
+        xd->mb_to_top_edge = -((mb_row * 16) << 3);
+        xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3;
+
+        xd->recon_above[0] = dst_buffer[0] + recon_yoffset;
+        xd->recon_above[1] = dst_buffer[1] + recon_uvoffset;
+        xd->recon_above[2] = dst_buffer[2] + recon_uvoffset;
+
+        xd->recon_left[0] = xd->recon_above[0] - 1;
+        xd->recon_left[1] = xd->recon_above[1] - 1;
+        xd->recon_left[2] = xd->recon_above[2] - 1;
+
+        xd->recon_above[0] -= xd->dst.y_stride;
+        xd->recon_above[1] -= xd->dst.uv_stride;
+        xd->recon_above[2] -= xd->dst.uv_stride;
+
+        /* TODO: move to outside row loop */
+        xd->recon_left_stride[0] = xd->dst.y_stride;
+        xd->recon_left_stride[1] = xd->dst.uv_stride;
+
+        setup_intra_recon_left(xd->recon_left[0], xd->recon_left[1],
+                               xd->recon_left[2], xd->dst.y_stride,
+                               xd->dst.uv_stride);
+
+        for (mb_col = 0; mb_col < pc->mb_cols; mb_col++)
+        {
+            /* Distance of Mb to the various image edges.
+             * These are specified to 8th pel as they are always compared to values
+             * that are in 1/8th pel units
+             */
+            xd->mb_to_left_edge = -((mb_col * 16) << 3);
+            xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3;
+
+#if CONFIG_ERROR_CONCEALMENT
+            {
+                int corrupt_residual = (!pbi->independent_partitions &&
+                                       pbi->frame_corrupt_residual) ||
+                                       vp8dx_bool_error(xd->current_bc);
+                if (pbi->ec_active &&
+                    xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME &&
+                    corrupt_residual)
+                {
+                    /* We have an intra block with corrupt coefficients, better to
+                     * conceal with an inter block. Interpolate MVs from neighboring
+                     * MBs.
+                     *
+                     * Note that for the first mb with corrupt residual in a frame,
+                     * we might not discover that before decoding the residual. That
+                     * happens after this check, and therefore no inter concealment
+                     * will be done.
+                     */
+                    vp8_interpolate_motion(xd,
+                                           mb_row, mb_col,
+                                           pc->mb_rows, pc->mb_cols,
+                                           pc->mode_info_stride);
+                }
+            }
+#endif
+
+            xd->dst.y_buffer = dst_buffer[0] + recon_yoffset;
+            xd->dst.u_buffer = dst_buffer[1] + recon_uvoffset;
+            xd->dst.v_buffer = dst_buffer[2] + recon_uvoffset;
+
+            if (xd->mode_info_context->mbmi.ref_frame >= LAST_FRAME) {
+              MV_REFERENCE_FRAME ref = xd->mode_info_context->mbmi.ref_frame;
+              xd->pre.y_buffer = ref_buffer[ref][0] + recon_yoffset;
+              xd->pre.u_buffer = ref_buffer[ref][1] + recon_uvoffset;
+              xd->pre.v_buffer = ref_buffer[ref][2] + recon_uvoffset;
+            } else {
+              // ref_frame is INTRA_FRAME, pre buffer should not be used.
+              xd->pre.y_buffer = 0;
+              xd->pre.u_buffer = 0;
+              xd->pre.v_buffer = 0;
+            }
+
+            /* propagate errors from reference frames */
+            xd->corrupted |= ref_fb_corrupted[xd->mode_info_context->mbmi.ref_frame];
+
+            decode_macroblock(pbi, xd, mb_idx);
+
+            mb_idx++;
+            xd->left_available = 1;
+
+            /* check if the boolean decoder has suffered an error */
+            xd->corrupted |= vp8dx_bool_error(xd->current_bc);
+
+            xd->recon_above[0] += 16;
+            xd->recon_above[1] += 8;
+            xd->recon_above[2] += 8;
+            xd->recon_left[0] += 16;
+            xd->recon_left[1] += 8;
+            xd->recon_left[2] += 8;
+
+            recon_yoffset += 16;
+            recon_uvoffset += 8;
+
+            ++xd->mode_info_context;  /* next mb */
+
+            xd->above_context++;
+        }
+
+        /* adjust to the next row of mbs */
+        vp8_extend_mb_row(yv12_fb_new, xd->dst.y_buffer + 16,
+                          xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
+
+        ++xd->mode_info_context;      /* skip prediction column */
+        xd->up_available = 1;
+
+        if(pc->filter_level)
+        {
+            if(mb_row > 0)
+            {
+                if (pc->filter_type == NORMAL_LOOPFILTER)
+                    vp8_loop_filter_row_normal(pc, lf_mic, mb_row-1,
+                                               recon_y_stride, recon_uv_stride,
+                                               lf_dst[0], lf_dst[1], lf_dst[2]);
+                else
+                    vp8_loop_filter_row_simple(pc, lf_mic, mb_row-1,
+                                               recon_y_stride, recon_uv_stride,
+                                               lf_dst[0], lf_dst[1], lf_dst[2]);
+                if(mb_row > 1)
+                {
+                    yv12_extend_frame_left_right_c(yv12_fb_new,
+                                                   eb_dst[0],
+                                                   eb_dst[1],
+                                                   eb_dst[2]);
+
+                    eb_dst[0] += recon_y_stride  * 16;
+                    eb_dst[1] += recon_uv_stride *  8;
+                    eb_dst[2] += recon_uv_stride *  8;
+                }
+
+                lf_dst[0] += recon_y_stride  * 16;
+                lf_dst[1] += recon_uv_stride *  8;
+                lf_dst[2] += recon_uv_stride *  8;
+                lf_mic += pc->mb_cols;
+                lf_mic++;         /* Skip border mb */
+            }
+        }
+        else
+        {
+            if(mb_row > 0)
+            {
+                /**/
+                yv12_extend_frame_left_right_c(yv12_fb_new,
+                                               eb_dst[0],
+                                               eb_dst[1],
+                                               eb_dst[2]);
+                eb_dst[0] += recon_y_stride  * 16;
+                eb_dst[1] += recon_uv_stride *  8;
+                eb_dst[2] += recon_uv_stride *  8;
+            }
+        }
+    }
+
+    if(pc->filter_level)
+    {
+        if (pc->filter_type == NORMAL_LOOPFILTER)
+            vp8_loop_filter_row_normal(pc, lf_mic, mb_row-1, recon_y_stride,
+                                       recon_uv_stride, lf_dst[0], lf_dst[1],
+                                       lf_dst[2]);
+        else
+            vp8_loop_filter_row_simple(pc, lf_mic, mb_row-1, recon_y_stride,
+                                       recon_uv_stride, lf_dst[0], lf_dst[1],
+                                       lf_dst[2]);
+
+        yv12_extend_frame_left_right_c(yv12_fb_new,
+                                       eb_dst[0],
+                                       eb_dst[1],
+                                       eb_dst[2]);
+        eb_dst[0] += recon_y_stride  * 16;
+        eb_dst[1] += recon_uv_stride *  8;
+        eb_dst[2] += recon_uv_stride *  8;
+    }
+    yv12_extend_frame_left_right_c(yv12_fb_new,
+                                   eb_dst[0],
+                                   eb_dst[1],
+                                   eb_dst[2]);
+    yv12_extend_frame_top_c(yv12_fb_new);
+    yv12_extend_frame_bottom_c(yv12_fb_new);
+
+}
+
+static unsigned int read_partition_size(VP8D_COMP *pbi,
+                                        const unsigned char *cx_size)
+{
+    unsigned char temp[3];
+    if (pbi->decrypt_cb)
+    {
+        pbi->decrypt_cb(pbi->decrypt_state, cx_size, temp, 3);
+        cx_size = temp;
+    }
+    return cx_size[0] + (cx_size[1] << 8) + (cx_size[2] << 16);
+}
+
+static int read_is_valid(const unsigned char *start,
+                         size_t               len,
+                         const unsigned char *end)
+{
+    return (start + len > start && start + len <= end);
+}
+
+static unsigned int read_available_partition_size(
+                                       VP8D_COMP *pbi,
+                                       const unsigned char *token_part_sizes,
+                                       const unsigned char *fragment_start,
+                                       const unsigned char *first_fragment_end,
+                                       const unsigned char *fragment_end,
+                                       int i,
+                                       int num_part)
+{
+    VP8_COMMON* pc = &pbi->common;
+    const unsigned char *partition_size_ptr = token_part_sizes + i * 3;
+    unsigned int partition_size = 0;
+    ptrdiff_t bytes_left = fragment_end - fragment_start;
+    /* Calculate the length of this partition. The last partition
+     * size is implicit. If the partition size can't be read, then
+     * either use the remaining data in the buffer (for EC mode)
+     * or throw an error.
+     */
+    if (i < num_part - 1)
+    {
+        if (read_is_valid(partition_size_ptr, 3, first_fragment_end))
+            partition_size = read_partition_size(pbi, partition_size_ptr);
+        else if (pbi->ec_active)
+            partition_size = (unsigned int)bytes_left;
+        else
+            vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
+                               "Truncated partition size data");
+    }
+    else
+        partition_size = (unsigned int)bytes_left;
+
+    /* Validate the calculated partition length. If the buffer
+     * described by the partition can't be fully read, then restrict
+     * it to the portion that can be (for EC mode) or throw an error.
+     */
+    if (!read_is_valid(fragment_start, partition_size, fragment_end))
+    {
+        if (pbi->ec_active)
+            partition_size = (unsigned int)bytes_left;
+        else
+            vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
+                               "Truncated packet or corrupt partition "
+                               "%d length", i + 1);
+    }
+    return partition_size;
+}
+
+
+static void setup_token_decoder(VP8D_COMP *pbi,
+                                const unsigned char* token_part_sizes)
+{
+    vp8_reader *bool_decoder = &pbi->mbc[0];
+    unsigned int partition_idx;
+    unsigned int fragment_idx;
+    unsigned int num_token_partitions;
+    const unsigned char *first_fragment_end = pbi->fragments.ptrs[0] +
+                                          pbi->fragments.sizes[0];
+
+    TOKEN_PARTITION multi_token_partition =
+            (TOKEN_PARTITION)vp8_read_literal(&pbi->mbc[8], 2);
+    if (!vp8dx_bool_error(&pbi->mbc[8]))
+        pbi->common.multi_token_partition = multi_token_partition;
+    num_token_partitions = 1 << pbi->common.multi_token_partition;
+
+    /* Check for partitions within the fragments and unpack the fragments
+     * so that each fragment pointer points to its corresponding partition. */
+    for (fragment_idx = 0; fragment_idx < pbi->fragments.count; ++fragment_idx)
+    {
+        unsigned int fragment_size = pbi->fragments.sizes[fragment_idx];
+        const unsigned char *fragment_end = pbi->fragments.ptrs[fragment_idx] +
+                                            fragment_size;
+        /* Special case for handling the first partition since we have already
+         * read its size. */
+        if (fragment_idx == 0)
+        {
+            /* Size of first partition + token partition sizes element */
+            ptrdiff_t ext_first_part_size = token_part_sizes -
+                pbi->fragments.ptrs[0] + 3 * (num_token_partitions - 1);
+            fragment_size -= (unsigned int)ext_first_part_size;
+            if (fragment_size > 0)
+            {
+                pbi->fragments.sizes[0] = (unsigned int)ext_first_part_size;
+                /* The fragment contains an additional partition. Move to
+                 * next. */
+                fragment_idx++;
+                pbi->fragments.ptrs[fragment_idx] = pbi->fragments.ptrs[0] +
+                  pbi->fragments.sizes[0];
+            }
+        }
+        /* Split the chunk into partitions read from the bitstream */
+        while (fragment_size > 0)
+        {
+            ptrdiff_t partition_size = read_available_partition_size(
+                                                 pbi,
+                                                 token_part_sizes,
+                                                 pbi->fragments.ptrs[fragment_idx],
+                                                 first_fragment_end,
+                                                 fragment_end,
+                                                 fragment_idx - 1,
+                                                 num_token_partitions);
+            pbi->fragments.sizes[fragment_idx] = (unsigned int)partition_size;
+            fragment_size -= (unsigned int)partition_size;
+            assert(fragment_idx <= num_token_partitions);
+            if (fragment_size > 0)
+            {
+                /* The fragment contains an additional partition.
+                 * Move to next. */
+                fragment_idx++;
+                pbi->fragments.ptrs[fragment_idx] =
+                    pbi->fragments.ptrs[fragment_idx - 1] + partition_size;
+            }
+        }
+    }
+
+    pbi->fragments.count = num_token_partitions + 1;
+
+    for (partition_idx = 1; partition_idx < pbi->fragments.count; ++partition_idx)
+    {
+        if (vp8dx_start_decode(bool_decoder,
+                               pbi->fragments.ptrs[partition_idx],
+                               pbi->fragments.sizes[partition_idx],
+                               pbi->decrypt_cb, pbi->decrypt_state))
+            vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,
+                               "Failed to allocate bool decoder %d",
+                               partition_idx);
+
+        bool_decoder++;
+    }
+
+#if CONFIG_MULTITHREAD
+    /* Clamp number of decoder threads */
+    if (pbi->decoding_thread_count > num_token_partitions - 1)
+        pbi->decoding_thread_count = num_token_partitions - 1;
+#endif
+}
+
+
+static void init_frame(VP8D_COMP *pbi)
+{
+    VP8_COMMON *const pc = & pbi->common;
+    MACROBLOCKD *const xd  = & pbi->mb;
+
+    if (pc->frame_type == KEY_FRAME)
+    {
+        /* Various keyframe initializations */
+        memcpy(pc->fc.mvc, vp8_default_mv_context, sizeof(vp8_default_mv_context));
+
+        vp8_init_mbmode_probs(pc);
+
+        vp8_default_coef_probs(pc);
+
+        /* reset the segment feature data to 0 with delta coding (Default state). */
+        memset(xd->segment_feature_data, 0, sizeof(xd->segment_feature_data));
+        xd->mb_segement_abs_delta = SEGMENT_DELTADATA;
+
+        /* reset the mode ref deltasa for loop filter */
+        memset(xd->ref_lf_deltas, 0, sizeof(xd->ref_lf_deltas));
+        memset(xd->mode_lf_deltas, 0, sizeof(xd->mode_lf_deltas));
+
+        /* All buffers are implicitly updated on key frames. */
+        pc->refresh_golden_frame = 1;
+        pc->refresh_alt_ref_frame = 1;
+        pc->copy_buffer_to_gf = 0;
+        pc->copy_buffer_to_arf = 0;
+
+        /* Note that Golden and Altref modes cannot be used on a key frame so
+         * ref_frame_sign_bias[] is undefined and meaningless
+         */
+        pc->ref_frame_sign_bias[GOLDEN_FRAME] = 0;
+        pc->ref_frame_sign_bias[ALTREF_FRAME] = 0;
+    }
+    else
+    {
+        /* To enable choice of different interploation filters */
+        if (!pc->use_bilinear_mc_filter)
+        {
+            xd->subpixel_predict        = vp8_sixtap_predict4x4;
+            xd->subpixel_predict8x4     = vp8_sixtap_predict8x4;
+            xd->subpixel_predict8x8     = vp8_sixtap_predict8x8;
+            xd->subpixel_predict16x16   = vp8_sixtap_predict16x16;
+        }
+        else
+        {
+            xd->subpixel_predict        = vp8_bilinear_predict4x4;
+            xd->subpixel_predict8x4     = vp8_bilinear_predict8x4;
+            xd->subpixel_predict8x8     = vp8_bilinear_predict8x8;
+            xd->subpixel_predict16x16   = vp8_bilinear_predict16x16;
+        }
+
+        if (pbi->decoded_key_frame && pbi->ec_enabled && !pbi->ec_active)
+            pbi->ec_active = 1;
+    }
+
+    xd->left_context = &pc->left_context;
+    xd->mode_info_context = pc->mi;
+    xd->frame_type = pc->frame_type;
+    xd->mode_info_context->mbmi.mode = DC_PRED;
+    xd->mode_info_stride = pc->mode_info_stride;
+    xd->corrupted = 0; /* init without corruption */
+
+    xd->fullpixel_mask = 0xffffffff;
+    if(pc->full_pixel)
+        xd->fullpixel_mask = 0xfffffff8;
+
+}
+
+int vp8_decode_frame(VP8D_COMP *pbi)
+{
+    vp8_reader *const bc = &pbi->mbc[8];
+    VP8_COMMON *const pc = &pbi->common;
+    MACROBLOCKD *const xd  = &pbi->mb;
+    const unsigned char *data = pbi->fragments.ptrs[0];
+    const unsigned char *data_end =  data + pbi->fragments.sizes[0];
+    ptrdiff_t first_partition_length_in_bytes;
+
+    int i, j, k, l;
+    const int *const mb_feature_data_bits = vp8_mb_feature_data_bits;
+    int corrupt_tokens = 0;
+    int prev_independent_partitions = pbi->independent_partitions;
+
+    YV12_BUFFER_CONFIG *yv12_fb_new = pbi->dec_fb_ref[INTRA_FRAME];
+
+    /* start with no corruption of current frame */
+    xd->corrupted = 0;
+    yv12_fb_new->corrupted = 0;
+
+    if (data_end - data < 3)
+    {
+        if (!pbi->ec_active)
+        {
+            vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
+                               "Truncated packet");
+        }
+
+        /* Declare the missing frame as an inter frame since it will
+           be handled as an inter frame when we have estimated its
+           motion vectors. */
+        pc->frame_type = INTER_FRAME;
+        pc->version = 0;
+        pc->show_frame = 1;
+        first_partition_length_in_bytes = 0;
+    }
+    else
+    {
+        unsigned char clear_buffer[10];
+        const unsigned char *clear = data;
+        if (pbi->decrypt_cb)
+        {
+            int n = (int)MIN(sizeof(clear_buffer), data_end - data);
+            pbi->decrypt_cb(pbi->decrypt_state, data, clear_buffer, n);
+            clear = clear_buffer;
+        }
+
+        pc->frame_type = (FRAME_TYPE)(clear[0] & 1);
+        pc->version = (clear[0] >> 1) & 7;
+        pc->show_frame = (clear[0] >> 4) & 1;
+        first_partition_length_in_bytes =
+            (clear[0] | (clear[1] << 8) | (clear[2] << 16)) >> 5;
+
+        if (!pbi->ec_active &&
+            (data + first_partition_length_in_bytes > data_end
+            || data + first_partition_length_in_bytes < data))
+            vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
+                               "Truncated packet or corrupt partition 0 length");
+
+        data += 3;
+        clear += 3;
+
+        vp8_setup_version(pc);
+
+
+        if (pc->frame_type == KEY_FRAME)
+        {
+            /* vet via sync code */
+            /* When error concealment is enabled we should only check the sync
+             * code if we have enough bits available
+             */
+            if (!pbi->ec_active || data + 3 < data_end)
+            {
+                if (clear[0] != 0x9d || clear[1] != 0x01 || clear[2] != 0x2a)
+                    vpx_internal_error(&pc->error, VPX_CODEC_UNSUP_BITSTREAM,
+                                   "Invalid frame sync code");
+            }
+
+            /* If error concealment is enabled we should only parse the new size
+             * if we have enough data. Otherwise we will end up with the wrong
+             * size.
+             */
+            if (!pbi->ec_active || data + 6 < data_end)
+            {
+                pc->Width = (clear[3] | (clear[4] << 8)) & 0x3fff;
+                pc->horiz_scale = clear[4] >> 6;
+                pc->Height = (clear[5] | (clear[6] << 8)) & 0x3fff;
+                pc->vert_scale = clear[6] >> 6;
+            }
+            data += 7;
+        }
+        else
+        {
+          memcpy(&xd->pre, yv12_fb_new, sizeof(YV12_BUFFER_CONFIG));
+          memcpy(&xd->dst, yv12_fb_new, sizeof(YV12_BUFFER_CONFIG));
+        }
+    }
+    if ((!pbi->decoded_key_frame && pc->frame_type != KEY_FRAME))
+    {
+        return -1;
+    }
+
+    init_frame(pbi);
+
+    if (vp8dx_start_decode(bc, data, (unsigned int)(data_end - data),
+                           pbi->decrypt_cb, pbi->decrypt_state))
+        vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate bool decoder 0");
+    if (pc->frame_type == KEY_FRAME) {
+        (void)vp8_read_bit(bc);  // colorspace
+        pc->clamp_type  = (CLAMP_TYPE)vp8_read_bit(bc);
+    }
+
+    /* Is segmentation enabled */
+    xd->segmentation_enabled = (unsigned char)vp8_read_bit(bc);
+
+    if (xd->segmentation_enabled)
+    {
+        /* Signal whether or not the segmentation map is being explicitly updated this frame. */
+        xd->update_mb_segmentation_map = (unsigned char)vp8_read_bit(bc);
+        xd->update_mb_segmentation_data = (unsigned char)vp8_read_bit(bc);
+
+        if (xd->update_mb_segmentation_data)
+        {
+            xd->mb_segement_abs_delta = (unsigned char)vp8_read_bit(bc);
+
+            memset(xd->segment_feature_data, 0, sizeof(xd->segment_feature_data));
+
+            /* For each segmentation feature (Quant and loop filter level) */
+            for (i = 0; i < MB_LVL_MAX; i++)
+            {
+                for (j = 0; j < MAX_MB_SEGMENTS; j++)
+                {
+                    /* Frame level data */
+                    if (vp8_read_bit(bc))
+                    {
+                        xd->segment_feature_data[i][j] = (signed char)vp8_read_literal(bc, mb_feature_data_bits[i]);
+
+                        if (vp8_read_bit(bc))
+                            xd->segment_feature_data[i][j] = -xd->segment_feature_data[i][j];
+                    }
+                    else
+                        xd->segment_feature_data[i][j] = 0;
+                }
+            }
+        }
+
+        if (xd->update_mb_segmentation_map)
+        {
+            /* Which macro block level features are enabled */
+            memset(xd->mb_segment_tree_probs, 255, sizeof(xd->mb_segment_tree_probs));
+
+            /* Read the probs used to decode the segment id for each macro block. */
+            for (i = 0; i < MB_FEATURE_TREE_PROBS; i++)
+            {
+                /* If not explicitly set value is defaulted to 255 by memset above */
+                if (vp8_read_bit(bc))
+                    xd->mb_segment_tree_probs[i] = (vp8_prob)vp8_read_literal(bc, 8);
+            }
+        }
+    }
+    else
+    {
+        /* No segmentation updates on this frame */
+        xd->update_mb_segmentation_map = 0;
+        xd->update_mb_segmentation_data = 0;
+    }
+
+    /* Read the loop filter level and type */
+    pc->filter_type = (LOOPFILTERTYPE) vp8_read_bit(bc);
+    pc->filter_level = vp8_read_literal(bc, 6);
+    pc->sharpness_level = vp8_read_literal(bc, 3);
+
+    /* Read in loop filter deltas applied at the MB level based on mode or ref frame. */
+    xd->mode_ref_lf_delta_update = 0;
+    xd->mode_ref_lf_delta_enabled = (unsigned char)vp8_read_bit(bc);
+
+    if (xd->mode_ref_lf_delta_enabled)
+    {
+        /* Do the deltas need to be updated */
+        xd->mode_ref_lf_delta_update = (unsigned char)vp8_read_bit(bc);
+
+        if (xd->mode_ref_lf_delta_update)
+        {
+            /* Send update */
+            for (i = 0; i < MAX_REF_LF_DELTAS; i++)
+            {
+                if (vp8_read_bit(bc))
+                {
+                    /*sign = vp8_read_bit( bc );*/
+                    xd->ref_lf_deltas[i] = (signed char)vp8_read_literal(bc, 6);
+
+                    if (vp8_read_bit(bc))        /* Apply sign */
+                        xd->ref_lf_deltas[i] = xd->ref_lf_deltas[i] * -1;
+                }
+            }
+
+            /* Send update */
+            for (i = 0; i < MAX_MODE_LF_DELTAS; i++)
+            {
+                if (vp8_read_bit(bc))
+                {
+                    /*sign = vp8_read_bit( bc );*/
+                    xd->mode_lf_deltas[i] = (signed char)vp8_read_literal(bc, 6);
+
+                    if (vp8_read_bit(bc))        /* Apply sign */
+                        xd->mode_lf_deltas[i] = xd->mode_lf_deltas[i] * -1;
+                }
+            }
+        }
+    }
+
+    setup_token_decoder(pbi, data + first_partition_length_in_bytes);
+
+    xd->current_bc = &pbi->mbc[0];
+
+    /* Read the default quantizers. */
+    {
+        int Q, q_update;
+
+        Q = vp8_read_literal(bc, 7);  /* AC 1st order Q = default */
+        pc->base_qindex = Q;
+        q_update = 0;
+        pc->y1dc_delta_q = get_delta_q(bc, pc->y1dc_delta_q, &q_update);
+        pc->y2dc_delta_q = get_delta_q(bc, pc->y2dc_delta_q, &q_update);
+        pc->y2ac_delta_q = get_delta_q(bc, pc->y2ac_delta_q, &q_update);
+        pc->uvdc_delta_q = get_delta_q(bc, pc->uvdc_delta_q, &q_update);
+        pc->uvac_delta_q = get_delta_q(bc, pc->uvac_delta_q, &q_update);
+
+        if (q_update)
+            vp8cx_init_de_quantizer(pbi);
+
+        /* MB level dequantizer setup */
+        vp8_mb_init_dequantizer(pbi, &pbi->mb);
+    }
+
+    /* Determine if the golden frame or ARF buffer should be updated and how.
+     * For all non key frames the GF and ARF refresh flags and sign bias
+     * flags must be set explicitly.
+     */
+    if (pc->frame_type != KEY_FRAME)
+    {
+        /* Should the GF or ARF be updated from the current frame */
+        pc->refresh_golden_frame = vp8_read_bit(bc);
+#if CONFIG_ERROR_CONCEALMENT
+        /* Assume we shouldn't refresh golden if the bit is missing */
+        xd->corrupted |= vp8dx_bool_error(bc);
+        if (pbi->ec_active && xd->corrupted)
+            pc->refresh_golden_frame = 0;
+#endif
+
+        pc->refresh_alt_ref_frame = vp8_read_bit(bc);
+#if CONFIG_ERROR_CONCEALMENT
+        /* Assume we shouldn't refresh altref if the bit is missing */
+        xd->corrupted |= vp8dx_bool_error(bc);
+        if (pbi->ec_active && xd->corrupted)
+            pc->refresh_alt_ref_frame = 0;
+#endif
+
+        /* Buffer to buffer copy flags. */
+        pc->copy_buffer_to_gf = 0;
+
+        if (!pc->refresh_golden_frame)
+            pc->copy_buffer_to_gf = vp8_read_literal(bc, 2);
+
+#if CONFIG_ERROR_CONCEALMENT
+        /* Assume we shouldn't copy to the golden if the bit is missing */
+        xd->corrupted |= vp8dx_bool_error(bc);
+        if (pbi->ec_active && xd->corrupted)
+            pc->copy_buffer_to_gf = 0;
+#endif
+
+        pc->copy_buffer_to_arf = 0;
+
+        if (!pc->refresh_alt_ref_frame)
+            pc->copy_buffer_to_arf = vp8_read_literal(bc, 2);
+
+#if CONFIG_ERROR_CONCEALMENT
+        /* Assume we shouldn't copy to the alt-ref if the bit is missing */
+        xd->corrupted |= vp8dx_bool_error(bc);
+        if (pbi->ec_active && xd->corrupted)
+            pc->copy_buffer_to_arf = 0;
+#endif
+
+
+        pc->ref_frame_sign_bias[GOLDEN_FRAME] = vp8_read_bit(bc);
+        pc->ref_frame_sign_bias[ALTREF_FRAME] = vp8_read_bit(bc);
+    }
+
+    pc->refresh_entropy_probs = vp8_read_bit(bc);
+#if CONFIG_ERROR_CONCEALMENT
+    /* Assume we shouldn't refresh the probabilities if the bit is
+     * missing */
+    xd->corrupted |= vp8dx_bool_error(bc);
+    if (pbi->ec_active && xd->corrupted)
+        pc->refresh_entropy_probs = 0;
+#endif
+    if (pc->refresh_entropy_probs == 0)
+    {
+        memcpy(&pc->lfc, &pc->fc, sizeof(pc->fc));
+    }
+
+    pc->refresh_last_frame = pc->frame_type == KEY_FRAME  ||  vp8_read_bit(bc);
+
+#if CONFIG_ERROR_CONCEALMENT
+    /* Assume we should refresh the last frame if the bit is missing */
+    xd->corrupted |= vp8dx_bool_error(bc);
+    if (pbi->ec_active && xd->corrupted)
+        pc->refresh_last_frame = 1;
+#endif
+
+    if (0)
+    {
+        FILE *z = fopen("decodestats.stt", "a");
+        fprintf(z, "%6d F:%d,G:%d,A:%d,L:%d,Q:%d\n",
+                pc->current_video_frame,
+                pc->frame_type,
+                pc->refresh_golden_frame,
+                pc->refresh_alt_ref_frame,
+                pc->refresh_last_frame,
+                pc->base_qindex);
+        fclose(z);
+    }
+
+    {
+        pbi->independent_partitions = 1;
+
+        /* read coef probability tree */
+        for (i = 0; i < BLOCK_TYPES; i++)
+            for (j = 0; j < COEF_BANDS; j++)
+                for (k = 0; k < PREV_COEF_CONTEXTS; k++)
+                    for (l = 0; l < ENTROPY_NODES; l++)
+                    {
+
+                        vp8_prob *const p = pc->fc.coef_probs [i][j][k] + l;
+
+                        if (vp8_read(bc, vp8_coef_update_probs [i][j][k][l]))
+                        {
+                            *p = (vp8_prob)vp8_read_literal(bc, 8);
+
+                        }
+                        if (k > 0 && *p != pc->fc.coef_probs[i][j][k-1][l])
+                            pbi->independent_partitions = 0;
+
+                    }
+    }
+
+    /* clear out the coeff buffer */
+    memset(xd->qcoeff, 0, sizeof(xd->qcoeff));
+
+    vp8_decode_mode_mvs(pbi);
+
+#if CONFIG_ERROR_CONCEALMENT
+    if (pbi->ec_active &&
+            pbi->mvs_corrupt_from_mb < (unsigned int)pc->mb_cols * pc->mb_rows)
+    {
+        /* Motion vectors are missing in this frame. We will try to estimate
+         * them and then continue decoding the frame as usual */
+        vp8_estimate_missing_mvs(pbi);
+    }
+#endif
+
+    memset(pc->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) * pc->mb_cols);
+    pbi->frame_corrupt_residual = 0;
+
+#if CONFIG_MULTITHREAD
+    if (pbi->b_multithreaded_rd && pc->multi_token_partition != ONE_PARTITION)
+    {
+        unsigned int thread;
+        vp8mt_decode_mb_rows(pbi, xd);
+        vp8_yv12_extend_frame_borders(yv12_fb_new);
+        for (thread = 0; thread < pbi->decoding_thread_count; ++thread)
+            corrupt_tokens |= pbi->mb_row_di[thread].mbd.corrupted;
+    }
+    else
+#endif
+    {
+        decode_mb_rows(pbi);
+        corrupt_tokens |= xd->corrupted;
+    }
+
+    /* Collect information about decoder corruption. */
+    /* 1. Check first boolean decoder for errors. */
+    yv12_fb_new->corrupted = vp8dx_bool_error(bc);
+    /* 2. Check the macroblock information */
+    yv12_fb_new->corrupted |= corrupt_tokens;
+
+    if (!pbi->decoded_key_frame)
+    {
+        if (pc->frame_type == KEY_FRAME &&
+            !yv12_fb_new->corrupted)
+            pbi->decoded_key_frame = 1;
+        else
+            vpx_internal_error(&pbi->common.error, VPX_CODEC_CORRUPT_FRAME,
+                               "A stream must start with a complete key frame");
+    }
+
+    /* vpx_log("Decoder: Frame Decoded, Size Roughly:%d bytes  \n",bc->pos+pbi->bc2.pos); */
+
+    if (pc->refresh_entropy_probs == 0)
+    {
+        memcpy(&pc->fc, &pc->lfc, sizeof(pc->fc));
+        pbi->independent_partitions = prev_independent_partitions;
+    }
+
+#ifdef PACKET_TESTING
+    {
+        FILE *f = fopen("decompressor.VP8", "ab");
+        unsigned int size = pbi->bc2.pos + pbi->bc.pos + 8;
+        fwrite((void *) &size, 4, 1, f);
+        fwrite((void *) pbi->Source, size, 1, f);
+        fclose(f);
+    }
+#endif
+
+    return 0;
+}
diff --git a/media/libvpx/vp8/decoder/decodemv.c b/media/libvpx/vp8/decoder/decodemv.c
new file mode 100644
index 000000000..1d155e7e1
--- /dev/null
+++ b/media/libvpx/vp8/decoder/decodemv.c
@@ -0,0 +1,670 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "treereader.h"
+#include "vp8/common/entropymv.h"
+#include "vp8/common/entropymode.h"
+#include "onyxd_int.h"
+#include "vp8/common/findnearmv.h"
+
+#if CONFIG_DEBUG
+#include <assert.h>
+#endif
+static B_PREDICTION_MODE read_bmode(vp8_reader *bc, const vp8_prob *p)
+{
+    const int i = vp8_treed_read(bc, vp8_bmode_tree, p);
+
+    return (B_PREDICTION_MODE)i;
+}
+
+static MB_PREDICTION_MODE read_ymode(vp8_reader *bc, const vp8_prob *p)
+{
+    const int i = vp8_treed_read(bc, vp8_ymode_tree, p);
+
+    return (MB_PREDICTION_MODE)i;
+}
+
+static MB_PREDICTION_MODE read_kf_ymode(vp8_reader *bc, const vp8_prob *p)
+{
+    const int i = vp8_treed_read(bc, vp8_kf_ymode_tree, p);
+
+    return (MB_PREDICTION_MODE)i;
+}
+
+static MB_PREDICTION_MODE read_uv_mode(vp8_reader *bc, const vp8_prob *p)
+{
+    const int i = vp8_treed_read(bc, vp8_uv_mode_tree, p);
+
+    return (MB_PREDICTION_MODE)i;
+}
+
+static void read_kf_modes(VP8D_COMP *pbi, MODE_INFO *mi)
+{
+    vp8_reader *const bc = & pbi->mbc[8];
+    const int mis = pbi->common.mode_info_stride;
+
+    mi->mbmi.ref_frame = INTRA_FRAME;
+    mi->mbmi.mode = read_kf_ymode(bc, vp8_kf_ymode_prob);
+
+    if (mi->mbmi.mode == B_PRED)
+    {
+        int i = 0;
+        mi->mbmi.is_4x4 = 1;
+
+        do
+        {
+            const B_PREDICTION_MODE A = above_block_mode(mi, i, mis);
+            const B_PREDICTION_MODE L = left_block_mode(mi, i);
+
+            mi->bmi[i].as_mode =
+                read_bmode(bc, vp8_kf_bmode_prob [A] [L]);
+        }
+        while (++i < 16);
+    }
+
+    mi->mbmi.uv_mode = read_uv_mode(bc, vp8_kf_uv_mode_prob);
+}
+
+static int read_mvcomponent(vp8_reader *r, const MV_CONTEXT *mvc)
+{
+    const vp8_prob *const p = (const vp8_prob *) mvc;
+    int x = 0;
+
+    if (vp8_read(r, p [mvpis_short]))  /* Large */
+    {
+        int i = 0;
+
+        do
+        {
+            x += vp8_read(r, p [MVPbits + i]) << i;
+        }
+        while (++i < 3);
+
+        i = mvlong_width - 1;  /* Skip bit 3, which is sometimes implicit */
+
+        do
+        {
+            x += vp8_read(r, p [MVPbits + i]) << i;
+        }
+        while (--i > 3);
+
+        if (!(x & 0xFFF0)  ||  vp8_read(r, p [MVPbits + 3]))
+            x += 8;
+    }
+    else   /* small */
+        x = vp8_treed_read(r, vp8_small_mvtree, p + MVPshort);
+
+    if (x  &&  vp8_read(r, p [MVPsign]))
+        x = -x;
+
+    return x;
+}
+
+static void read_mv(vp8_reader *r, MV *mv, const MV_CONTEXT *mvc)
+{
+    mv->row = (short)(read_mvcomponent(r,   mvc) * 2);
+    mv->col = (short)(read_mvcomponent(r, ++mvc) * 2);
+}
+
+
+static void read_mvcontexts(vp8_reader *bc, MV_CONTEXT *mvc)
+{
+    int i = 0;
+
+    do
+    {
+        const vp8_prob *up = vp8_mv_update_probs[i].prob;
+        vp8_prob *p = (vp8_prob *)(mvc + i);
+        vp8_prob *const pstop = p + MVPcount;
+
+        do
+        {
+            if (vp8_read(bc, *up++))
+            {
+                const vp8_prob x = (vp8_prob)vp8_read_literal(bc, 7);
+
+                *p = x ? x << 1 : 1;
+            }
+        }
+        while (++p < pstop);
+    }
+    while (++i < 2);
+}
+
+static const unsigned char mbsplit_fill_count[4] = {8, 8, 4, 1};
+static const unsigned char mbsplit_fill_offset[4][16] = {
+    { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15},
+    { 0,  1,  4,  5,  8,  9, 12, 13,  2,  3,   6,  7, 10, 11, 14, 15},
+    { 0,  1,  4,  5,  2,  3,  6,  7,  8,  9,  12, 13, 10, 11, 14, 15},
+    { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15}
+};
+
+
+static void mb_mode_mv_init(VP8D_COMP *pbi)
+{
+    vp8_reader *const bc = & pbi->mbc[8];
+    MV_CONTEXT *const mvc = pbi->common.fc.mvc;
+
+#if CONFIG_ERROR_CONCEALMENT
+    /* Default is that no macroblock is corrupt, therefore we initialize
+     * mvs_corrupt_from_mb to something very big, which we can be sure is
+     * outside the frame. */
+    pbi->mvs_corrupt_from_mb = UINT_MAX;
+#endif
+    /* Read the mb_no_coeff_skip flag */
+    pbi->common.mb_no_coeff_skip = (int)vp8_read_bit(bc);
+
+    pbi->prob_skip_false = 0;
+    if (pbi->common.mb_no_coeff_skip)
+        pbi->prob_skip_false = (vp8_prob)vp8_read_literal(bc, 8);
+
+    if(pbi->common.frame_type != KEY_FRAME)
+    {
+        pbi->prob_intra = (vp8_prob)vp8_read_literal(bc, 8);
+        pbi->prob_last  = (vp8_prob)vp8_read_literal(bc, 8);
+        pbi->prob_gf    = (vp8_prob)vp8_read_literal(bc, 8);
+
+        if (vp8_read_bit(bc))
+        {
+            int i = 0;
+
+            do
+            {
+                pbi->common.fc.ymode_prob[i] =
+                    (vp8_prob) vp8_read_literal(bc, 8);
+            }
+            while (++i < 4);
+        }
+
+        if (vp8_read_bit(bc))
+        {
+            int i = 0;
+
+            do
+            {
+                pbi->common.fc.uv_mode_prob[i] =
+                    (vp8_prob) vp8_read_literal(bc, 8);
+            }
+            while (++i < 3);
+        }
+
+        read_mvcontexts(bc, mvc);
+    }
+}
+
+const vp8_prob vp8_sub_mv_ref_prob3 [8][VP8_SUBMVREFS-1] =
+{
+    { 147, 136, 18 },   /* SUBMVREF_NORMAL          */
+    { 223, 1  , 34 },   /* SUBMVREF_LEFT_ABOVE_SAME */
+    { 106, 145, 1  },   /* SUBMVREF_LEFT_ZED        */
+    { 208, 1  , 1  },   /* SUBMVREF_LEFT_ABOVE_ZED  */
+    { 179, 121, 1  },   /* SUBMVREF_ABOVE_ZED       */
+    { 223, 1  , 34 },   /* SUBMVREF_LEFT_ABOVE_SAME */
+    { 179, 121, 1  },   /* SUBMVREF_ABOVE_ZED       */
+    { 208, 1  , 1  }    /* SUBMVREF_LEFT_ABOVE_ZED  */
+};
+
+static
+const vp8_prob * get_sub_mv_ref_prob(const int left, const int above)
+{
+    int lez = (left == 0);
+    int aez = (above == 0);
+    int lea = (left == above);
+    const vp8_prob * prob;
+
+    prob = vp8_sub_mv_ref_prob3[(aez << 2) |
+                                (lez << 1) |
+                                (lea)];
+
+    return prob;
+}
+
+static void decode_split_mv(vp8_reader *const bc, MODE_INFO *mi,
+                        const MODE_INFO *left_mb, const MODE_INFO *above_mb,
+                        MB_MODE_INFO *mbmi, int_mv best_mv,
+                        MV_CONTEXT *const mvc, int mb_to_left_edge,
+                        int mb_to_right_edge, int mb_to_top_edge,
+                        int mb_to_bottom_edge)
+{
+    int s;      /* split configuration (16x8, 8x16, 8x8, 4x4) */
+    int num_p;  /* number of partitions in the split configuration
+                  (see vp8_mbsplit_count) */
+    int j = 0;
+
+    s = 3;
+    num_p = 16;
+    if( vp8_read(bc, 110) )
+    {
+        s = 2;
+        num_p = 4;
+        if( vp8_read(bc, 111) )
+        {
+            s = vp8_read(bc, 150);
+            num_p = 2;
+        }
+    }
+
+    do  /* for each subset j */
+    {
+        int_mv leftmv, abovemv;
+        int_mv blockmv;
+        int k;  /* first block in subset j */
+
+        const vp8_prob *prob;
+        k = vp8_mbsplit_offset[s][j];
+
+        if (!(k & 3))
+        {
+            /* On L edge, get from MB to left of us */
+            if(left_mb->mbmi.mode != SPLITMV)
+                leftmv.as_int =  left_mb->mbmi.mv.as_int;
+            else
+                leftmv.as_int =  (left_mb->bmi + k + 4 - 1)->mv.as_int;
+        }
+        else
+            leftmv.as_int =  (mi->bmi + k - 1)->mv.as_int;
+
+        if (!(k >> 2))
+        {
+            /* On top edge, get from MB above us */
+            if(above_mb->mbmi.mode != SPLITMV)
+                abovemv.as_int =  above_mb->mbmi.mv.as_int;
+            else
+                abovemv.as_int =  (above_mb->bmi + k + 16 - 4)->mv.as_int;
+        }
+        else
+            abovemv.as_int = (mi->bmi + k - 4)->mv.as_int;
+
+        prob = get_sub_mv_ref_prob(leftmv.as_int, abovemv.as_int);
+
+        if( vp8_read(bc, prob[0]) )
+        {
+            if( vp8_read(bc, prob[1]) )
+            {
+                blockmv.as_int = 0;
+                if( vp8_read(bc, prob[2]) )
+                {
+                    blockmv.as_mv.row = read_mvcomponent(bc, &mvc[0]) * 2;
+                    blockmv.as_mv.row += best_mv.as_mv.row;
+                    blockmv.as_mv.col = read_mvcomponent(bc, &mvc[1]) * 2;
+                    blockmv.as_mv.col += best_mv.as_mv.col;
+                }
+            }
+            else
+            {
+                blockmv.as_int = abovemv.as_int;
+            }
+        }
+        else
+        {
+            blockmv.as_int = leftmv.as_int;
+        }
+
+        mbmi->need_to_clamp_mvs |= vp8_check_mv_bounds(&blockmv,
+                                                  mb_to_left_edge,
+                                                  mb_to_right_edge,
+                                                  mb_to_top_edge,
+                                                  mb_to_bottom_edge);
+
+        {
+            /* Fill (uniform) modes, mvs of jth subset.
+             Must do it here because ensuing subsets can
+             refer back to us via "left" or "above". */
+            const unsigned char *fill_offset;
+            unsigned int fill_count = mbsplit_fill_count[s];
+
+            fill_offset = &mbsplit_fill_offset[s]
+                             [(unsigned char)j * mbsplit_fill_count[s]];
+
+            do {
+                mi->bmi[ *fill_offset].mv.as_int = blockmv.as_int;
+                fill_offset++;
+            }while (--fill_count);
+        }
+
+    }
+    while (++j < num_p);
+
+    mbmi->partitioning = s;
+}
+
+static void read_mb_modes_mv(VP8D_COMP *pbi, MODE_INFO *mi, MB_MODE_INFO *mbmi)
+{
+    vp8_reader *const bc = & pbi->mbc[8];
+    mbmi->ref_frame = (MV_REFERENCE_FRAME) vp8_read(bc, pbi->prob_intra);
+    if (mbmi->ref_frame)    /* inter MB */
+    {
+        enum {CNT_INTRA, CNT_NEAREST, CNT_NEAR, CNT_SPLITMV};
+        int cnt[4];
+        int *cntx = cnt;
+        int_mv near_mvs[4];
+        int_mv *nmv = near_mvs;
+        const int mis = pbi->mb.mode_info_stride;
+        const MODE_INFO *above = mi - mis;
+        const MODE_INFO *left = mi - 1;
+        const MODE_INFO *aboveleft = above - 1;
+        int *ref_frame_sign_bias = pbi->common.ref_frame_sign_bias;
+
+        mbmi->need_to_clamp_mvs = 0;
+
+        if (vp8_read(bc, pbi->prob_last))
+        {
+            mbmi->ref_frame =
+                (MV_REFERENCE_FRAME)((int)(2 + vp8_read(bc, pbi->prob_gf)));
+        }
+
+        /* Zero accumulators */
+        nmv[0].as_int = nmv[1].as_int = nmv[2].as_int = 0;
+        cnt[0] = cnt[1] = cnt[2] = cnt[3] = 0;
+
+        /* Process above */
+        if (above->mbmi.ref_frame != INTRA_FRAME)
+        {
+            if (above->mbmi.mv.as_int)
+            {
+                (++nmv)->as_int = above->mbmi.mv.as_int;
+                mv_bias(ref_frame_sign_bias[above->mbmi.ref_frame],
+                        mbmi->ref_frame, nmv, ref_frame_sign_bias);
+                ++cntx;
+            }
+
+            *cntx += 2;
+        }
+
+        /* Process left */
+        if (left->mbmi.ref_frame != INTRA_FRAME)
+        {
+            if (left->mbmi.mv.as_int)
+            {
+                int_mv this_mv;
+
+                this_mv.as_int = left->mbmi.mv.as_int;
+                mv_bias(ref_frame_sign_bias[left->mbmi.ref_frame],
+                        mbmi->ref_frame, &this_mv, ref_frame_sign_bias);
+
+                if (this_mv.as_int != nmv->as_int)
+                {
+                    (++nmv)->as_int = this_mv.as_int;
+                    ++cntx;
+                }
+
+                *cntx += 2;
+            }
+            else
+                cnt[CNT_INTRA] += 2;
+        }
+
+        /* Process above left */
+        if (aboveleft->mbmi.ref_frame != INTRA_FRAME)
+        {
+            if (aboveleft->mbmi.mv.as_int)
+            {
+                int_mv this_mv;
+
+                this_mv.as_int = aboveleft->mbmi.mv.as_int;
+                mv_bias(ref_frame_sign_bias[aboveleft->mbmi.ref_frame],
+                        mbmi->ref_frame, &this_mv, ref_frame_sign_bias);
+
+                if (this_mv.as_int != nmv->as_int)
+                {
+                    (++nmv)->as_int = this_mv.as_int;
+                    ++cntx;
+                }
+
+                *cntx += 1;
+            }
+            else
+                cnt[CNT_INTRA] += 1;
+        }
+
+        if( vp8_read(bc, vp8_mode_contexts [cnt[CNT_INTRA]] [0]) )
+        {
+
+            /* If we have three distinct MV's ... */
+            /* See if above-left MV can be merged with NEAREST */
+            cnt[CNT_NEAREST] += ( (cnt[CNT_SPLITMV] > 0) &
+                (nmv->as_int == near_mvs[CNT_NEAREST].as_int));
+
+            /* Swap near and nearest if necessary */
+            if (cnt[CNT_NEAR] > cnt[CNT_NEAREST])
+            {
+                int tmp;
+                tmp = cnt[CNT_NEAREST];
+                cnt[CNT_NEAREST] = cnt[CNT_NEAR];
+                cnt[CNT_NEAR] = tmp;
+                tmp = near_mvs[CNT_NEAREST].as_int;
+                near_mvs[CNT_NEAREST].as_int = near_mvs[CNT_NEAR].as_int;
+                near_mvs[CNT_NEAR].as_int = tmp;
+            }
+
+            if( vp8_read(bc, vp8_mode_contexts [cnt[CNT_NEAREST]] [1]) )
+            {
+
+                if( vp8_read(bc, vp8_mode_contexts [cnt[CNT_NEAR]] [2]) )
+                {
+                    int mb_to_top_edge;
+                    int mb_to_bottom_edge;
+                    int mb_to_left_edge;
+                    int mb_to_right_edge;
+                    MV_CONTEXT *const mvc = pbi->common.fc.mvc;
+                    int near_index;
+
+                    mb_to_top_edge = pbi->mb.mb_to_top_edge;
+                    mb_to_bottom_edge = pbi->mb.mb_to_bottom_edge;
+                    mb_to_top_edge -= LEFT_TOP_MARGIN;
+                    mb_to_bottom_edge += RIGHT_BOTTOM_MARGIN;
+                    mb_to_right_edge = pbi->mb.mb_to_right_edge;
+                    mb_to_right_edge += RIGHT_BOTTOM_MARGIN;
+                    mb_to_left_edge = pbi->mb.mb_to_left_edge;
+                    mb_to_left_edge -= LEFT_TOP_MARGIN;
+
+                    /* Use near_mvs[0] to store the "best" MV */
+                    near_index = CNT_INTRA +
+                        (cnt[CNT_NEAREST] >= cnt[CNT_INTRA]);
+
+                    vp8_clamp_mv2(&near_mvs[near_index], &pbi->mb);
+
+                    cnt[CNT_SPLITMV] = ((above->mbmi.mode == SPLITMV)
+                                        + (left->mbmi.mode == SPLITMV)) * 2
+                                       + (aboveleft->mbmi.mode == SPLITMV);
+
+                    if( vp8_read(bc, vp8_mode_contexts [cnt[CNT_SPLITMV]] [3]) )
+                    {
+                        decode_split_mv(bc, mi, left, above,
+                                                    mbmi,
+                                                    near_mvs[near_index],
+                                                    mvc, mb_to_left_edge,
+                                                    mb_to_right_edge,
+                                                    mb_to_top_edge,
+                                                    mb_to_bottom_edge);
+                        mbmi->mv.as_int = mi->bmi[15].mv.as_int;
+                        mbmi->mode =  SPLITMV;
+                        mbmi->is_4x4 = 1;
+                    }
+                    else
+                    {
+                        int_mv *const mbmi_mv = & mbmi->mv;
+                        read_mv(bc, &mbmi_mv->as_mv, (const MV_CONTEXT *) mvc);
+                        mbmi_mv->as_mv.row += near_mvs[near_index].as_mv.row;
+                        mbmi_mv->as_mv.col += near_mvs[near_index].as_mv.col;
+
+                        /* Don't need to check this on NEARMV and NEARESTMV
+                         * modes since those modes clamp the MV. The NEWMV mode
+                         * does not, so signal to the prediction stage whether
+                         * special handling may be required.
+                         */
+                        mbmi->need_to_clamp_mvs =
+                            vp8_check_mv_bounds(mbmi_mv, mb_to_left_edge,
+                                                mb_to_right_edge,
+                                                mb_to_top_edge,
+                                                mb_to_bottom_edge);
+                        mbmi->mode =  NEWMV;
+                    }
+                }
+                else
+                {
+                    mbmi->mode =  NEARMV;
+                    mbmi->mv.as_int = near_mvs[CNT_NEAR].as_int;
+                    vp8_clamp_mv2(&mbmi->mv, &pbi->mb);
+                }
+            }
+            else
+            {
+                mbmi->mode =  NEARESTMV;
+                mbmi->mv.as_int = near_mvs[CNT_NEAREST].as_int;
+                vp8_clamp_mv2(&mbmi->mv, &pbi->mb);
+            }
+        }
+        else
+        {
+            mbmi->mode =  ZEROMV;
+            mbmi->mv.as_int = 0;
+        }
+
+#if CONFIG_ERROR_CONCEALMENT
+        if(pbi->ec_enabled && (mbmi->mode != SPLITMV))
+        {
+            mi->bmi[ 0].mv.as_int =
+            mi->bmi[ 1].mv.as_int =
+            mi->bmi[ 2].mv.as_int =
+            mi->bmi[ 3].mv.as_int =
+            mi->bmi[ 4].mv.as_int =
+            mi->bmi[ 5].mv.as_int =
+            mi->bmi[ 6].mv.as_int =
+            mi->bmi[ 7].mv.as_int =
+            mi->bmi[ 8].mv.as_int =
+            mi->bmi[ 9].mv.as_int =
+            mi->bmi[10].mv.as_int =
+            mi->bmi[11].mv.as_int =
+            mi->bmi[12].mv.as_int =
+            mi->bmi[13].mv.as_int =
+            mi->bmi[14].mv.as_int =
+            mi->bmi[15].mv.as_int = mbmi->mv.as_int;
+        }
+#endif
+    }
+    else
+    {
+        /* required for left and above block mv */
+        mbmi->mv.as_int = 0;
+
+        /* MB is intra coded */
+        if ((mbmi->mode = read_ymode(bc, pbi->common.fc.ymode_prob)) == B_PRED)
+        {
+            int j = 0;
+            mbmi->is_4x4 = 1;
+            do
+            {
+                mi->bmi[j].as_mode = read_bmode(bc, pbi->common.fc.bmode_prob);
+            }
+            while (++j < 16);
+        }
+
+        mbmi->uv_mode = read_uv_mode(bc, pbi->common.fc.uv_mode_prob);
+    }
+
+}
+
+static void read_mb_features(vp8_reader *r, MB_MODE_INFO *mi, MACROBLOCKD *x)
+{
+    /* Is segmentation enabled */
+    if (x->segmentation_enabled && x->update_mb_segmentation_map)
+    {
+        /* If so then read the segment id. */
+        if (vp8_read(r, x->mb_segment_tree_probs[0]))
+            mi->segment_id =
+                (unsigned char)(2 + vp8_read(r, x->mb_segment_tree_probs[2]));
+        else
+            mi->segment_id =
+                (unsigned char)(vp8_read(r, x->mb_segment_tree_probs[1]));
+    }
+}
+
+static void decode_mb_mode_mvs(VP8D_COMP *pbi, MODE_INFO *mi,
+                               MB_MODE_INFO *mbmi)
+{
+    (void)mbmi;
+
+    /* Read the Macroblock segmentation map if it is being updated explicitly
+     * this frame (reset to 0 above by default)
+     * By default on a key frame reset all MBs to segment 0
+     */
+    if (pbi->mb.update_mb_segmentation_map)
+        read_mb_features(&pbi->mbc[8], &mi->mbmi, &pbi->mb);
+    else if(pbi->common.frame_type == KEY_FRAME)
+        mi->mbmi.segment_id = 0;
+
+    /* Read the macroblock coeff skip flag if this feature is in use,
+     * else default to 0 */
+    if (pbi->common.mb_no_coeff_skip)
+        mi->mbmi.mb_skip_coeff = vp8_read(&pbi->mbc[8], pbi->prob_skip_false);
+    else
+        mi->mbmi.mb_skip_coeff = 0;
+
+    mi->mbmi.is_4x4 = 0;
+    if(pbi->common.frame_type == KEY_FRAME)
+        read_kf_modes(pbi, mi);
+    else
+        read_mb_modes_mv(pbi, mi, &mi->mbmi);
+
+}
+
+void vp8_decode_mode_mvs(VP8D_COMP *pbi)
+{
+    MODE_INFO *mi = pbi->common.mi;
+    int mb_row = -1;
+    int mb_to_right_edge_start;
+
+    mb_mode_mv_init(pbi);
+
+    pbi->mb.mb_to_top_edge = 0;
+    pbi->mb.mb_to_bottom_edge = ((pbi->common.mb_rows - 1) * 16) << 3;
+    mb_to_right_edge_start = ((pbi->common.mb_cols - 1) * 16) << 3;
+
+    while (++mb_row < pbi->common.mb_rows)
+    {
+        int mb_col = -1;
+
+        pbi->mb.mb_to_left_edge =  0;
+        pbi->mb.mb_to_right_edge = mb_to_right_edge_start;
+
+        while (++mb_col < pbi->common.mb_cols)
+        {
+#if CONFIG_ERROR_CONCEALMENT
+            int mb_num = mb_row * pbi->common.mb_cols + mb_col;
+#endif
+
+            decode_mb_mode_mvs(pbi, mi, &mi->mbmi);
+
+#if CONFIG_ERROR_CONCEALMENT
+            /* look for corruption. set mvs_corrupt_from_mb to the current
+             * mb_num if the frame is corrupt from this macroblock. */
+            if (vp8dx_bool_error(&pbi->mbc[8]) && mb_num <
+                (int)pbi->mvs_corrupt_from_mb)
+            {
+                pbi->mvs_corrupt_from_mb = mb_num;
+                /* no need to continue since the partition is corrupt from
+                 * here on.
+                 */
+                return;
+            }
+#endif
+
+            pbi->mb.mb_to_left_edge -= (16 << 3);
+            pbi->mb.mb_to_right_edge -= (16 << 3);
+            mi++;       /* next macroblock */
+        }
+        pbi->mb.mb_to_top_edge -= (16 << 3);
+        pbi->mb.mb_to_bottom_edge -= (16 << 3);
+
+        mi++;           /* skip left predictor each row */
+    }
+}
diff --git a/media/libvpx/vp8/decoder/decodemv.h b/media/libvpx/vp8/decoder/decodemv.h
new file mode 100644
index 000000000..f33b07351
--- /dev/null
+++ b/media/libvpx/vp8/decoder/decodemv.h
@@ -0,0 +1,26 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_DECODER_DECODEMV_H_
+#define VP8_DECODER_DECODEMV_H_
+
+#include "onyxd_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_decode_mode_mvs(VP8D_COMP *);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_DECODEMV_H_
diff --git a/media/libvpx/vp8/decoder/decoderthreading.h b/media/libvpx/vp8/decoder/decoderthreading.h
new file mode 100644
index 000000000..c563cf6e9
--- /dev/null
+++ b/media/libvpx/vp8/decoder/decoderthreading.h
@@ -0,0 +1,30 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_DECODER_DECODERTHREADING_H_
+#define VP8_DECODER_DECODERTHREADING_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if CONFIG_MULTITHREAD
+void vp8mt_decode_mb_rows(VP8D_COMP *pbi, MACROBLOCKD *xd);
+void vp8_decoder_remove_threads(VP8D_COMP *pbi);
+void vp8_decoder_create_threads(VP8D_COMP *pbi);
+void vp8mt_alloc_temp_buffers(VP8D_COMP *pbi, int width, int prev_mb_rows);
+void vp8mt_de_alloc_temp_buffers(VP8D_COMP *pbi, int mb_rows);
+#endif
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_DECODERTHREADING_H_
diff --git a/media/libvpx/vp8/decoder/detokenize.c b/media/libvpx/vp8/decoder/detokenize.c
new file mode 100644
index 000000000..fcc7533c5
--- /dev/null
+++ b/media/libvpx/vp8/decoder/detokenize.c
@@ -0,0 +1,245 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vp8/common/blockd.h"
+#include "onyxd_int.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_ports/mem.h"
+#include "detokenize.h"
+
+void vp8_reset_mb_tokens_context(MACROBLOCKD *x)
+{
+    ENTROPY_CONTEXT *a_ctx = ((ENTROPY_CONTEXT *)x->above_context);
+    ENTROPY_CONTEXT *l_ctx = ((ENTROPY_CONTEXT *)x->left_context);
+
+    memset(a_ctx, 0, sizeof(ENTROPY_CONTEXT_PLANES)-1);
+    memset(l_ctx, 0, sizeof(ENTROPY_CONTEXT_PLANES)-1);
+
+    /* Clear entropy contexts for Y2 blocks */
+    if (!x->mode_info_context->mbmi.is_4x4)
+    {
+        a_ctx[8] = l_ctx[8] = 0;
+    }
+}
+
+/*
+    ------------------------------------------------------------------------------
+    Residual decoding (Paragraph 13.2 / 13.3)
+*/
+static const uint8_t kBands[16 + 1] = {
+  0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7,
+  0  /* extra entry as sentinel */
+};
+
+static const uint8_t kCat3[] = { 173, 148, 140, 0 };
+static const uint8_t kCat4[] = { 176, 155, 140, 135, 0 };
+static const uint8_t kCat5[] = { 180, 157, 141, 134, 130, 0 };
+static const uint8_t kCat6[] =
+  { 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 };
+static const uint8_t* const kCat3456[] = { kCat3, kCat4, kCat5, kCat6 };
+static const uint8_t kZigzag[16] = {
+  0, 1, 4, 8,  5, 2, 3, 6,  9, 12, 13, 10,  7, 11, 14, 15
+};
+
+#define VP8GetBit vp8dx_decode_bool
+#define NUM_PROBAS  11
+#define NUM_CTX  3
+
+/* for const-casting */
+typedef const uint8_t (*ProbaArray)[NUM_CTX][NUM_PROBAS];
+
+static int GetSigned(BOOL_DECODER *br, int value_to_sign)
+{
+    int split = (br->range + 1) >> 1;
+    VP8_BD_VALUE bigsplit = (VP8_BD_VALUE)split << (VP8_BD_VALUE_SIZE - 8);
+    int v;
+
+    if(br->count < 0)
+        vp8dx_bool_decoder_fill(br);
+
+    if ( br->value < bigsplit )
+    {
+        br->range = split;
+        v= value_to_sign;
+    }
+    else
+    {
+        br->range = br->range-split;
+        br->value = br->value-bigsplit;
+        v = -value_to_sign;
+    }
+    br->range +=br->range;
+    br->value +=br->value;
+    br->count--;
+
+    return v;
+}
+/*
+   Returns the position of the last non-zero coeff plus one
+   (and 0 if there's no coeff at all)
+*/
+static int GetCoeffs(BOOL_DECODER *br, ProbaArray prob,
+                     int ctx, int n, int16_t* out)
+{
+    const uint8_t* p = prob[n][ctx];
+    if (!VP8GetBit(br, p[0]))
+    {   /* first EOB is more a 'CBP' bit. */
+        return 0;
+    }
+    while (1)
+    {
+        ++n;
+        if (!VP8GetBit(br, p[1]))
+        {
+            p = prob[kBands[n]][0];
+        }
+        else
+        {  /* non zero coeff */
+            int v, j;
+            if (!VP8GetBit(br, p[2]))
+            {
+                p = prob[kBands[n]][1];
+                v = 1;
+            }
+            else
+            {
+                if (!VP8GetBit(br, p[3]))
+                {
+                    if (!VP8GetBit(br, p[4]))
+                    {
+                        v = 2;
+                    }
+                    else
+                    {
+                        v = 3 + VP8GetBit(br, p[5]);
+                    }
+                }
+                else
+                {
+                    if (!VP8GetBit(br, p[6]))
+                    {
+                        if (!VP8GetBit(br, p[7]))
+                        {
+                            v = 5 + VP8GetBit(br, 159);
+                        } else
+                        {
+                            v = 7 + 2 * VP8GetBit(br, 165);
+                            v += VP8GetBit(br, 145);
+                        }
+                    }
+                    else
+                    {
+                        const uint8_t* tab;
+                        const int bit1 = VP8GetBit(br, p[8]);
+                        const int bit0 = VP8GetBit(br, p[9 + bit1]);
+                        const int cat = 2 * bit1 + bit0;
+                        v = 0;
+                        for (tab = kCat3456[cat]; *tab; ++tab)
+                        {
+                            v += v + VP8GetBit(br, *tab);
+                        }
+                        v += 3 + (8 << cat);
+                    }
+                }
+                p = prob[kBands[n]][2];
+            }
+            j = kZigzag[n - 1];
+
+            out[j] = GetSigned(br, v);
+
+            if (n == 16 || !VP8GetBit(br, p[0]))
+            {   /* EOB */
+                return n;
+            }
+        }
+        if (n == 16)
+        {
+            return 16;
+        }
+    }
+}
+
+int vp8_decode_mb_tokens(VP8D_COMP *dx, MACROBLOCKD *x)
+{
+    BOOL_DECODER *bc = x->current_bc;
+    const FRAME_CONTEXT * const fc = &dx->common.fc;
+    char *eobs = x->eobs;
+
+    int i;
+    int nonzeros;
+    int eobtotal = 0;
+
+    short *qcoeff_ptr;
+    ProbaArray coef_probs;
+    ENTROPY_CONTEXT *a_ctx = ((ENTROPY_CONTEXT *)x->above_context);
+    ENTROPY_CONTEXT *l_ctx = ((ENTROPY_CONTEXT *)x->left_context);
+    ENTROPY_CONTEXT *a;
+    ENTROPY_CONTEXT *l;
+    int skip_dc = 0;
+
+    qcoeff_ptr = &x->qcoeff[0];
+
+    if (!x->mode_info_context->mbmi.is_4x4)
+    {
+        a = a_ctx + 8;
+        l = l_ctx + 8;
+
+        coef_probs = fc->coef_probs [1];
+
+        nonzeros = GetCoeffs(bc, coef_probs, (*a + *l), 0, qcoeff_ptr + 24 * 16);
+        *a = *l = (nonzeros > 0);
+
+        eobs[24] = nonzeros;
+        eobtotal += nonzeros - 16;
+
+        coef_probs = fc->coef_probs [0];
+        skip_dc = 1;
+    }
+    else
+    {
+        coef_probs = fc->coef_probs [3];
+        skip_dc = 0;
+    }
+
+    for (i = 0; i < 16; ++i)
+    {
+        a = a_ctx + (i&3);
+        l = l_ctx + ((i&0xc)>>2);
+
+        nonzeros = GetCoeffs(bc, coef_probs, (*a + *l), skip_dc, qcoeff_ptr);
+        *a = *l = (nonzeros > 0);
+
+        nonzeros += skip_dc;
+        eobs[i] = nonzeros;
+        eobtotal += nonzeros;
+        qcoeff_ptr += 16;
+    }
+
+    coef_probs = fc->coef_probs [2];
+
+    a_ctx += 4;
+    l_ctx += 4;
+    for (i = 16; i < 24; ++i)
+    {
+        a = a_ctx + ((i > 19)<<1) + (i&1);
+        l = l_ctx + ((i > 19)<<1) + ((i&3)>1);
+
+        nonzeros = GetCoeffs(bc, coef_probs, (*a + *l), 0, qcoeff_ptr);
+        *a = *l = (nonzeros > 0);
+
+        eobs[i] = nonzeros;
+        eobtotal += nonzeros;
+        qcoeff_ptr += 16;
+    }
+
+    return eobtotal;
+}
+
diff --git a/media/libvpx/vp8/decoder/detokenize.h b/media/libvpx/vp8/decoder/detokenize.h
new file mode 100644
index 000000000..f0b125444
--- /dev/null
+++ b/media/libvpx/vp8/decoder/detokenize.h
@@ -0,0 +1,27 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_DECODER_DETOKENIZE_H_
+#define VP8_DECODER_DETOKENIZE_H_
+
+#include "onyxd_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_reset_mb_tokens_context(MACROBLOCKD *x);
+int vp8_decode_mb_tokens(VP8D_COMP *, MACROBLOCKD *);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_DETOKENIZE_H_
diff --git a/media/libvpx/vp8/decoder/ec_types.h b/media/libvpx/vp8/decoder/ec_types.h
new file mode 100644
index 000000000..3af5ca86b
--- /dev/null
+++ b/media/libvpx/vp8/decoder/ec_types.h
@@ -0,0 +1,58 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_DECODER_EC_TYPES_H_
+#define VP8_DECODER_EC_TYPES_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MAX_OVERLAPS 16
+
+
+/* The area (pixel area in Q6) the block pointed to by bmi overlaps
+ * another block with.
+ */
+typedef struct
+{
+    int overlap;
+    union b_mode_info *bmi;
+} OVERLAP_NODE;
+
+/* Structure to keep track of overlapping blocks on a block level. */
+typedef struct
+{
+    /* TODO(holmer): This array should be exchanged for a linked list */
+    OVERLAP_NODE overlaps[MAX_OVERLAPS];
+} B_OVERLAP;
+
+/* Structure used to hold all the overlaps of a macroblock. The overlaps of a
+ * macroblock is further divided into block overlaps.
+ */
+typedef struct
+{
+    B_OVERLAP overlaps[16];
+} MB_OVERLAP;
+
+/* Structure for keeping track of motion vectors and which reference frame they
+ * refer to. Used for motion vector interpolation.
+ */
+typedef struct
+{
+    MV mv;
+    MV_REFERENCE_FRAME ref_frame;
+} EC_BLOCK;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_EC_TYPES_H_
diff --git a/media/libvpx/vp8/decoder/error_concealment.c b/media/libvpx/vp8/decoder/error_concealment.c
new file mode 100644
index 000000000..bb6d443c4
--- /dev/null
+++ b/media/libvpx/vp8/decoder/error_concealment.c
@@ -0,0 +1,596 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+
+#include "error_concealment.h"
+#include "onyxd_int.h"
+#include "decodemv.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/findnearmv.h"
+#include "vp8/common/common.h"
+
+#define FLOOR(x,q) ((x) & -(1 << (q)))
+
+#define NUM_NEIGHBORS 20
+
+typedef struct ec_position
+{
+    int row;
+    int col;
+} EC_POS;
+
+/*
+ * Regenerate the table in Matlab with:
+ * x = meshgrid((1:4), (1:4));
+ * y = meshgrid((1:4), (1:4))';
+ * W = round((1./(sqrt(x.^2 + y.^2))*2^7));
+ * W(1,1) = 0;
+ */
+static const int weights_q7[5][5] = {
+       {  0,   128,    64,    43,    32 },
+       {128,    91,    57,    40,    31 },
+       { 64,    57,    45,    36,    29 },
+       { 43,    40,    36,    30,    26 },
+       { 32,    31,    29,    26,    23 }
+};
+
+int vp8_alloc_overlap_lists(VP8D_COMP *pbi)
+{
+    if (pbi->overlaps != NULL)
+    {
+        vpx_free(pbi->overlaps);
+        pbi->overlaps = NULL;
+    }
+
+    pbi->overlaps = vpx_calloc(pbi->common.mb_rows * pbi->common.mb_cols,
+                               sizeof(MB_OVERLAP));
+
+    if (pbi->overlaps == NULL)
+        return -1;
+
+    return 0;
+}
+
+void vp8_de_alloc_overlap_lists(VP8D_COMP *pbi)
+{
+    vpx_free(pbi->overlaps);
+    pbi->overlaps = NULL;
+}
+
+/* Inserts a new overlap area value to the list of overlaps of a block */
+static void assign_overlap(OVERLAP_NODE* overlaps,
+                           union b_mode_info *bmi,
+                           int overlap)
+{
+    int i;
+    if (overlap <= 0)
+        return;
+    /* Find and assign to the next empty overlap node in the list of overlaps.
+     * Empty is defined as bmi == NULL */
+    for (i = 0; i < MAX_OVERLAPS; i++)
+    {
+        if (overlaps[i].bmi == NULL)
+        {
+            overlaps[i].bmi = bmi;
+            overlaps[i].overlap = overlap;
+            break;
+        }
+    }
+}
+
+/* Calculates the overlap area between two 4x4 squares, where the first
+ * square has its upper-left corner at (b1_row, b1_col) and the second
+ * square has its upper-left corner at (b2_row, b2_col). Doesn't
+ * properly handle squares which do not overlap.
+ */
+static int block_overlap(int b1_row, int b1_col, int b2_row, int b2_col)
+{
+    const int int_top = MAX(b1_row, b2_row); // top
+    const int int_left = MAX(b1_col, b2_col); // left
+    /* Since each block is 4x4 pixels, adding 4 (Q3) to the left/top edge
+     * gives us the right/bottom edge.
+     */
+    const int int_right = MIN(b1_col + (4<<3), b2_col + (4<<3)); // right
+    const int int_bottom = MIN(b1_row + (4<<3), b2_row + (4<<3)); // bottom
+    return (int_bottom - int_top) * (int_right - int_left);
+}
+
+/* Calculates the overlap area for all blocks in a macroblock at position
+ * (mb_row, mb_col) in macroblocks, which are being overlapped by a given
+ * overlapping block at position (new_row, new_col) (in pixels, Q3). The
+ * first block being overlapped in the macroblock has position (first_blk_row,
+ * first_blk_col) in blocks relative the upper-left corner of the image.
+ */
+static void calculate_overlaps_mb(B_OVERLAP *b_overlaps, union b_mode_info *bmi,
+                                  int new_row, int new_col,
+                                  int mb_row, int mb_col,
+                                  int first_blk_row, int first_blk_col)
+{
+    /* Find the blocks within this MB (defined by mb_row, mb_col) which are
+     * overlapped by bmi and calculate and assign overlap for each of those
+     * blocks. */
+
+    /* Block coordinates relative the upper-left block */
+    const int rel_ol_blk_row = first_blk_row - mb_row * 4;
+    const int rel_ol_blk_col = first_blk_col - mb_col * 4;
+    /* If the block partly overlaps any previous MB, these coordinates
+     * can be < 0. We don't want to access blocks in previous MBs.
+     */
+    const int blk_idx = MAX(rel_ol_blk_row,0) * 4 + MAX(rel_ol_blk_col,0);
+    /* Upper left overlapping block */
+    B_OVERLAP *b_ol_ul = &(b_overlaps[blk_idx]);
+
+    /* Calculate and assign overlaps for all blocks in this MB
+     * which the motion compensated block overlaps
+     */
+    /* Avoid calculating overlaps for blocks in later MBs */
+    int end_row = MIN(4 + mb_row * 4 - first_blk_row, 2);
+    int end_col = MIN(4 + mb_col * 4 - first_blk_col, 2);
+    int row, col;
+
+    /* Check if new_row and new_col are evenly divisible by 4 (Q3),
+     * and if so we shouldn't check neighboring blocks
+     */
+    if (new_row >= 0 && (new_row & 0x1F) == 0)
+        end_row = 1;
+    if (new_col >= 0 && (new_col & 0x1F) == 0)
+        end_col = 1;
+
+    /* Check if the overlapping block partly overlaps a previous MB
+     * and if so, we're overlapping fewer blocks in this MB.
+     */
+    if (new_row < (mb_row*16)<<3)
+        end_row = 1;
+    if (new_col < (mb_col*16)<<3)
+        end_col = 1;
+
+    for (row = 0; row < end_row; ++row)
+    {
+        for (col = 0; col < end_col; ++col)
+        {
+            /* input in Q3, result in Q6 */
+            const int overlap = block_overlap(new_row, new_col,
+                                                  (((first_blk_row + row) *
+                                                      4) << 3),
+                                                  (((first_blk_col + col) *
+                                                      4) << 3));
+            assign_overlap(b_ol_ul[row * 4 + col].overlaps, bmi, overlap);
+        }
+    }
+}
+
+void vp8_calculate_overlaps(MB_OVERLAP *overlap_ul,
+                            int mb_rows, int mb_cols,
+                            union b_mode_info *bmi,
+                            int b_row, int b_col)
+{
+    MB_OVERLAP *mb_overlap;
+    int row, col, rel_row, rel_col;
+    int new_row, new_col;
+    int end_row, end_col;
+    int overlap_b_row, overlap_b_col;
+    int overlap_mb_row, overlap_mb_col;
+
+    /* mb subpixel position */
+    row = (4 * b_row) << 3; /* Q3 */
+    col = (4 * b_col) << 3; /* Q3 */
+
+    /* reverse compensate for motion */
+    new_row = row - bmi->mv.as_mv.row;
+    new_col = col - bmi->mv.as_mv.col;
+
+    if (new_row >= ((16*mb_rows) << 3) || new_col >= ((16*mb_cols) << 3))
+    {
+        /* the new block ended up outside the frame */
+        return;
+    }
+
+    if (new_row <= (-4 << 3) || new_col <= (-4 << 3))
+    {
+        /* outside the frame */
+        return;
+    }
+    /* overlapping block's position in blocks */
+    overlap_b_row = FLOOR(new_row / 4, 3) >> 3;
+    overlap_b_col = FLOOR(new_col / 4, 3) >> 3;
+
+    /* overlapping block's MB position in MBs
+     * operations are done in Q3
+     */
+    overlap_mb_row = FLOOR((overlap_b_row << 3) / 4, 3) >> 3;
+    overlap_mb_col = FLOOR((overlap_b_col << 3) / 4, 3) >> 3;
+
+    end_row = MIN(mb_rows - overlap_mb_row, 2);
+    end_col = MIN(mb_cols - overlap_mb_col, 2);
+
+    /* Don't calculate overlap for MBs we don't overlap */
+    /* Check if the new block row starts at the last block row of the MB */
+    if (abs(new_row - ((16*overlap_mb_row) << 3)) < ((3*4) << 3))
+        end_row = 1;
+    /* Check if the new block col starts at the last block col of the MB */
+    if (abs(new_col - ((16*overlap_mb_col) << 3)) < ((3*4) << 3))
+        end_col = 1;
+
+    /* find the MB(s) this block is overlapping */
+    for (rel_row = 0; rel_row < end_row; ++rel_row)
+    {
+        for (rel_col = 0; rel_col < end_col; ++rel_col)
+        {
+            if (overlap_mb_row + rel_row < 0 ||
+                overlap_mb_col + rel_col < 0)
+                continue;
+            mb_overlap = overlap_ul + (overlap_mb_row + rel_row) * mb_cols +
+                 overlap_mb_col + rel_col;
+
+            calculate_overlaps_mb(mb_overlap->overlaps, bmi,
+                                  new_row, new_col,
+                                  overlap_mb_row + rel_row,
+                                  overlap_mb_col + rel_col,
+                                  overlap_b_row + rel_row,
+                                  overlap_b_col + rel_col);
+        }
+    }
+}
+
+/* Estimates a motion vector given the overlapping blocks' motion vectors.
+ * Filters out all overlapping blocks which do not refer to the correct
+ * reference frame type.
+ */
+static void estimate_mv(const OVERLAP_NODE *overlaps, union b_mode_info *bmi)
+{
+    int i;
+    int overlap_sum = 0;
+    int row_acc = 0;
+    int col_acc = 0;
+
+    bmi->mv.as_int = 0;
+    for (i=0; i < MAX_OVERLAPS; ++i)
+    {
+        if (overlaps[i].bmi == NULL)
+            break;
+        col_acc += overlaps[i].overlap * overlaps[i].bmi->mv.as_mv.col;
+        row_acc += overlaps[i].overlap * overlaps[i].bmi->mv.as_mv.row;
+        overlap_sum += overlaps[i].overlap;
+    }
+    if (overlap_sum > 0)
+    {
+        /* Q9 / Q6 = Q3 */
+        bmi->mv.as_mv.col = col_acc / overlap_sum;
+        bmi->mv.as_mv.row = row_acc / overlap_sum;
+    }
+    else
+    {
+        bmi->mv.as_mv.col = 0;
+        bmi->mv.as_mv.row = 0;
+    }
+}
+
+/* Estimates all motion vectors for a macroblock given the lists of
+ * overlaps for each block. Decides whether or not the MVs must be clamped.
+ */
+static void estimate_mb_mvs(const B_OVERLAP *block_overlaps,
+                            MODE_INFO *mi,
+                            int mb_to_left_edge,
+                            int mb_to_right_edge,
+                            int mb_to_top_edge,
+                            int mb_to_bottom_edge)
+{
+    int row, col;
+    int non_zero_count = 0;
+    MV * const filtered_mv = &(mi->mbmi.mv.as_mv);
+    union b_mode_info * const bmi = mi->bmi;
+    filtered_mv->col = 0;
+    filtered_mv->row = 0;
+    mi->mbmi.need_to_clamp_mvs = 0;
+    for (row = 0; row < 4; ++row)
+    {
+        int this_b_to_top_edge = mb_to_top_edge + ((row*4)<<3);
+        int this_b_to_bottom_edge = mb_to_bottom_edge - ((row*4)<<3);
+        for (col = 0; col < 4; ++col)
+        {
+            int i = row * 4 + col;
+            int this_b_to_left_edge = mb_to_left_edge + ((col*4)<<3);
+            int this_b_to_right_edge = mb_to_right_edge - ((col*4)<<3);
+            /* Estimate vectors for all blocks which are overlapped by this */
+            /* type. Interpolate/extrapolate the rest of the block's MVs */
+            estimate_mv(block_overlaps[i].overlaps, &(bmi[i]));
+            mi->mbmi.need_to_clamp_mvs |= vp8_check_mv_bounds(
+                                                         &bmi[i].mv,
+                                                         this_b_to_left_edge,
+                                                         this_b_to_right_edge,
+                                                         this_b_to_top_edge,
+                                                         this_b_to_bottom_edge);
+            if (bmi[i].mv.as_int != 0)
+            {
+                ++non_zero_count;
+                filtered_mv->col += bmi[i].mv.as_mv.col;
+                filtered_mv->row += bmi[i].mv.as_mv.row;
+            }
+        }
+    }
+    if (non_zero_count > 0)
+    {
+        filtered_mv->col /= non_zero_count;
+        filtered_mv->row /= non_zero_count;
+    }
+}
+
+static void calc_prev_mb_overlaps(MB_OVERLAP *overlaps, MODE_INFO *prev_mi,
+                                    int mb_row, int mb_col,
+                                    int mb_rows, int mb_cols)
+{
+    int sub_row;
+    int sub_col;
+    for (sub_row = 0; sub_row < 4; ++sub_row)
+    {
+        for (sub_col = 0; sub_col < 4; ++sub_col)
+        {
+            vp8_calculate_overlaps(
+                                overlaps, mb_rows, mb_cols,
+                                &(prev_mi->bmi[sub_row * 4 + sub_col]),
+                                4 * mb_row + sub_row,
+                                4 * mb_col + sub_col);
+        }
+    }
+}
+
+/* Estimate all missing motion vectors. This function does the same as the one
+ * above, but has different input arguments. */
+static void estimate_missing_mvs(MB_OVERLAP *overlaps,
+                                 MODE_INFO *mi, MODE_INFO *prev_mi,
+                                 int mb_rows, int mb_cols,
+                                 unsigned int first_corrupt)
+{
+    int mb_row, mb_col;
+    memset(overlaps, 0, sizeof(MB_OVERLAP) * mb_rows * mb_cols);
+    /* First calculate the overlaps for all blocks */
+    for (mb_row = 0; mb_row < mb_rows; ++mb_row)
+    {
+        for (mb_col = 0; mb_col < mb_cols; ++mb_col)
+        {
+            /* We're only able to use blocks referring to the last frame
+             * when extrapolating new vectors.
+             */
+            if (prev_mi->mbmi.ref_frame == LAST_FRAME)
+            {
+                calc_prev_mb_overlaps(overlaps, prev_mi,
+                                      mb_row, mb_col,
+                                      mb_rows, mb_cols);
+            }
+            ++prev_mi;
+        }
+        ++prev_mi;
+    }
+
+    mb_row = first_corrupt / mb_cols;
+    mb_col = first_corrupt - mb_row * mb_cols;
+    mi += mb_row*(mb_cols + 1) + mb_col;
+    /* Go through all macroblocks in the current image with missing MVs
+     * and calculate new MVs using the overlaps.
+     */
+    for (; mb_row < mb_rows; ++mb_row)
+    {
+        int mb_to_top_edge = -((mb_row * 16)) << 3;
+        int mb_to_bottom_edge = ((mb_rows - 1 - mb_row) * 16) << 3;
+        for (; mb_col < mb_cols; ++mb_col)
+        {
+            int mb_to_left_edge = -((mb_col * 16) << 3);
+            int mb_to_right_edge = ((mb_cols - 1 - mb_col) * 16) << 3;
+            const B_OVERLAP *block_overlaps =
+                    overlaps[mb_row*mb_cols + mb_col].overlaps;
+            mi->mbmi.ref_frame = LAST_FRAME;
+            mi->mbmi.mode = SPLITMV;
+            mi->mbmi.uv_mode = DC_PRED;
+            mi->mbmi.partitioning = 3;
+            mi->mbmi.segment_id = 0;
+            estimate_mb_mvs(block_overlaps,
+                            mi,
+                            mb_to_left_edge,
+                            mb_to_right_edge,
+                            mb_to_top_edge,
+                            mb_to_bottom_edge);
+            ++mi;
+        }
+        mb_col = 0;
+        ++mi;
+    }
+}
+
+void vp8_estimate_missing_mvs(VP8D_COMP *pbi)
+{
+    VP8_COMMON * const pc = &pbi->common;
+    estimate_missing_mvs(pbi->overlaps,
+                         pc->mi, pc->prev_mi,
+                         pc->mb_rows, pc->mb_cols,
+                         pbi->mvs_corrupt_from_mb);
+}
+
+static void assign_neighbor(EC_BLOCK *neighbor, MODE_INFO *mi, int block_idx)
+{
+    assert(mi->mbmi.ref_frame < MAX_REF_FRAMES);
+    neighbor->ref_frame = mi->mbmi.ref_frame;
+    neighbor->mv = mi->bmi[block_idx].mv.as_mv;
+}
+
+/* Finds the neighboring blocks of a macroblocks. In the general case
+ * 20 blocks are found. If a fewer number of blocks are found due to
+ * image boundaries, those positions in the EC_BLOCK array are left "empty".
+ * The neighbors are enumerated with the upper-left neighbor as the first
+ * element, the second element refers to the neighbor to right of the previous
+ * neighbor, and so on. The last element refers to the neighbor below the first
+ * neighbor.
+ */
+static void find_neighboring_blocks(MODE_INFO *mi,
+                                    EC_BLOCK *neighbors,
+                                    int mb_row, int mb_col,
+                                    int mb_rows, int mb_cols,
+                                    int mi_stride)
+{
+    int i = 0;
+    int j;
+    if (mb_row > 0)
+    {
+        /* upper left */
+        if (mb_col > 0)
+            assign_neighbor(&neighbors[i], mi - mi_stride - 1, 15);
+        ++i;
+        /* above */
+        for (j = 12; j < 16; ++j, ++i)
+            assign_neighbor(&neighbors[i], mi - mi_stride, j);
+    }
+    else
+        i += 5;
+    if (mb_col < mb_cols - 1)
+    {
+        /* upper right */
+        if (mb_row > 0)
+            assign_neighbor(&neighbors[i], mi - mi_stride + 1, 12);
+        ++i;
+        /* right */
+        for (j = 0; j <= 12; j += 4, ++i)
+            assign_neighbor(&neighbors[i], mi + 1, j);
+    }
+    else
+        i += 5;
+    if (mb_row < mb_rows - 1)
+    {
+        /* lower right */
+        if (mb_col < mb_cols - 1)
+            assign_neighbor(&neighbors[i], mi + mi_stride + 1, 0);
+        ++i;
+        /* below */
+        for (j = 0; j < 4; ++j, ++i)
+            assign_neighbor(&neighbors[i], mi + mi_stride, j);
+    }
+    else
+        i += 5;
+    if (mb_col > 0)
+    {
+        /* lower left */
+        if (mb_row < mb_rows - 1)
+            assign_neighbor(&neighbors[i], mi + mi_stride - 1, 4);
+        ++i;
+        /* left */
+        for (j = 3; j < 16; j += 4, ++i)
+        {
+            assign_neighbor(&neighbors[i], mi - 1, j);
+        }
+    }
+    else
+        i += 5;
+    assert(i == 20);
+}
+
+/* Interpolates all motion vectors for a macroblock from the neighboring blocks'
+ * motion vectors.
+ */
+static void interpolate_mvs(MACROBLOCKD *mb,
+                         EC_BLOCK *neighbors,
+                         MV_REFERENCE_FRAME dom_ref_frame)
+{
+    int row, col, i;
+    MODE_INFO * const mi = mb->mode_info_context;
+    /* Table with the position of the neighboring blocks relative the position
+     * of the upper left block of the current MB. Starting with the upper left
+     * neighbor and going to the right.
+     */
+    const EC_POS neigh_pos[NUM_NEIGHBORS] = {
+                                        {-1,-1}, {-1,0}, {-1,1}, {-1,2}, {-1,3},
+                                        {-1,4}, {0,4}, {1,4}, {2,4}, {3,4},
+                                        {4,4}, {4,3}, {4,2}, {4,1}, {4,0},
+                                        {4,-1}, {3,-1}, {2,-1}, {1,-1}, {0,-1}
+                                      };
+    mi->mbmi.need_to_clamp_mvs = 0;
+    for (row = 0; row < 4; ++row)
+    {
+        int mb_to_top_edge = mb->mb_to_top_edge + ((row*4)<<3);
+        int mb_to_bottom_edge = mb->mb_to_bottom_edge - ((row*4)<<3);
+        for (col = 0; col < 4; ++col)
+        {
+            int mb_to_left_edge = mb->mb_to_left_edge + ((col*4)<<3);
+            int mb_to_right_edge = mb->mb_to_right_edge - ((col*4)<<3);
+            int w_sum = 0;
+            int mv_row_sum = 0;
+            int mv_col_sum = 0;
+            int_mv * const mv = &(mi->bmi[row*4 + col].mv);
+            mv->as_int = 0;
+            for (i = 0; i < NUM_NEIGHBORS; ++i)
+            {
+                /* Calculate the weighted sum of neighboring MVs referring
+                 * to the dominant frame type.
+                 */
+                const int w = weights_q7[abs(row - neigh_pos[i].row)]
+                                        [abs(col - neigh_pos[i].col)];
+                if (neighbors[i].ref_frame != dom_ref_frame)
+                    continue;
+                w_sum += w;
+                /* Q7 * Q3 = Q10 */
+                mv_row_sum += w*neighbors[i].mv.row;
+                mv_col_sum += w*neighbors[i].mv.col;
+            }
+            if (w_sum > 0)
+            {
+                /* Avoid division by zero.
+                 * Normalize with the sum of the coefficients
+                 * Q3 = Q10 / Q7
+                 */
+                mv->as_mv.row = mv_row_sum / w_sum;
+                mv->as_mv.col = mv_col_sum / w_sum;
+                mi->mbmi.need_to_clamp_mvs |= vp8_check_mv_bounds(
+                                                            mv,
+                                                            mb_to_left_edge,
+                                                            mb_to_right_edge,
+                                                            mb_to_top_edge,
+                                                            mb_to_bottom_edge);
+            }
+        }
+    }
+}
+
+void vp8_interpolate_motion(MACROBLOCKD *mb,
+                        int mb_row, int mb_col,
+                        int mb_rows, int mb_cols,
+                        int mi_stride)
+{
+    /* Find relevant neighboring blocks */
+    EC_BLOCK neighbors[NUM_NEIGHBORS];
+    int i;
+    /* Initialize the array. MAX_REF_FRAMES is interpreted as "doesn't exist" */
+    for (i = 0; i < NUM_NEIGHBORS; ++i)
+    {
+        neighbors[i].ref_frame = MAX_REF_FRAMES;
+        neighbors[i].mv.row = neighbors[i].mv.col = 0;
+    }
+    find_neighboring_blocks(mb->mode_info_context,
+                                neighbors,
+                                mb_row, mb_col,
+                                mb_rows, mb_cols,
+                                mb->mode_info_stride);
+    /* Interpolate MVs for the missing blocks from the surrounding
+     * blocks which refer to the last frame. */
+    interpolate_mvs(mb, neighbors, LAST_FRAME);
+
+    mb->mode_info_context->mbmi.ref_frame = LAST_FRAME;
+    mb->mode_info_context->mbmi.mode = SPLITMV;
+    mb->mode_info_context->mbmi.uv_mode = DC_PRED;
+    mb->mode_info_context->mbmi.partitioning = 3;
+    mb->mode_info_context->mbmi.segment_id = 0;
+}
+
+void vp8_conceal_corrupt_mb(MACROBLOCKD *xd)
+{
+    /* This macroblock has corrupt residual, use the motion compensated
+       image (predictor) for concealment */
+
+    /* The build predictor functions now output directly into the dst buffer,
+     * so the copies are no longer necessary */
+
+}
diff --git a/media/libvpx/vp8/decoder/error_concealment.h b/media/libvpx/vp8/decoder/error_concealment.h
new file mode 100644
index 000000000..9a1e02486
--- /dev/null
+++ b/media/libvpx/vp8/decoder/error_concealment.h
@@ -0,0 +1,49 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_DECODER_ERROR_CONCEALMENT_H_
+#define VP8_DECODER_ERROR_CONCEALMENT_H_
+
+#include "onyxd_int.h"
+#include "ec_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Allocate memory for the overlap lists */
+int vp8_alloc_overlap_lists(VP8D_COMP *pbi);
+
+/* Deallocate the overlap lists */
+void vp8_de_alloc_overlap_lists(VP8D_COMP *pbi);
+
+/* Estimate all missing motion vectors. */
+void vp8_estimate_missing_mvs(VP8D_COMP *pbi);
+
+/* Functions for spatial MV interpolation */
+
+/* Interpolates all motion vectors for a macroblock mb at position
+ * (mb_row, mb_col). */
+void vp8_interpolate_motion(MACROBLOCKD *mb,
+                            int mb_row, int mb_col,
+                            int mb_rows, int mb_cols,
+                            int mi_stride);
+
+/* Conceal a macroblock with corrupt residual.
+ * Copies the prediction signal to the reconstructed image.
+ */
+void vp8_conceal_corrupt_mb(MACROBLOCKD *xd);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_ERROR_CONCEALMENT_H_
diff --git a/media/libvpx/vp8/decoder/onyxd_if.c b/media/libvpx/vp8/decoder/onyxd_if.c
new file mode 100644
index 000000000..9015fcbb4
--- /dev/null
+++ b/media/libvpx/vp8/decoder/onyxd_if.c
@@ -0,0 +1,505 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vp8/common/onyxc_int.h"
+#if CONFIG_POSTPROC
+#include "vp8/common/postproc.h"
+#endif
+#include "vp8/common/onyxd.h"
+#include "onyxd_int.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/alloccommon.h"
+#include "vp8/common/loopfilter.h"
+#include "vp8/common/swapyv12buffer.h"
+#include "vp8/common/threading.h"
+#include "decoderthreading.h"
+#include <stdio.h>
+#include <assert.h>
+
+#include "vp8/common/quant_common.h"
+#include "./vpx_scale_rtcd.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vp8/common/systemdependent.h"
+#include "vpx_ports/vpx_timer.h"
+#include "detokenize.h"
+#if CONFIG_ERROR_CONCEALMENT
+#include "error_concealment.h"
+#endif
+#if ARCH_ARM
+#include "vpx_ports/arm.h"
+#endif
+
+extern void vp8_init_loop_filter(VP8_COMMON *cm);
+extern void vp8cx_init_de_quantizer(VP8D_COMP *pbi);
+static int get_free_fb (VP8_COMMON *cm);
+static void ref_cnt_fb (int *buf, int *idx, int new_idx);
+
+static void remove_decompressor(VP8D_COMP *pbi)
+{
+#if CONFIG_ERROR_CONCEALMENT
+    vp8_de_alloc_overlap_lists(pbi);
+#endif
+    vp8_remove_common(&pbi->common);
+    vpx_free(pbi);
+}
+
+static struct VP8D_COMP * create_decompressor(VP8D_CONFIG *oxcf)
+{
+    VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP));
+
+    if (!pbi)
+        return NULL;
+
+    memset(pbi, 0, sizeof(VP8D_COMP));
+
+    if (setjmp(pbi->common.error.jmp))
+    {
+        pbi->common.error.setjmp = 0;
+        remove_decompressor(pbi);
+        return 0;
+    }
+
+    pbi->common.error.setjmp = 1;
+
+    vp8_create_common(&pbi->common);
+
+    pbi->common.current_video_frame = 0;
+    pbi->ready_for_new_data = 1;
+
+    /* vp8cx_init_de_quantizer() is first called here. Add check in frame_init_dequantizer() to avoid
+     *  unnecessary calling of vp8cx_init_de_quantizer() for every frame.
+     */
+    vp8cx_init_de_quantizer(pbi);
+
+    vp8_loop_filter_init(&pbi->common);
+
+    pbi->common.error.setjmp = 0;
+
+#if CONFIG_ERROR_CONCEALMENT
+    pbi->ec_enabled = oxcf->error_concealment;
+    pbi->overlaps = NULL;
+#else
+    (void)oxcf;
+    pbi->ec_enabled = 0;
+#endif
+    /* Error concealment is activated after a key frame has been
+     * decoded without errors when error concealment is enabled.
+     */
+    pbi->ec_active = 0;
+
+    pbi->decoded_key_frame = 0;
+
+    /* Independent partitions is activated when a frame updates the
+     * token probability table to have equal probabilities over the
+     * PREV_COEF context.
+     */
+    pbi->independent_partitions = 0;
+
+    vp8_setup_block_dptrs(&pbi->mb);
+
+    return pbi;
+}
+
+vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
+{
+    VP8_COMMON *cm = &pbi->common;
+    int ref_fb_idx;
+
+    if (ref_frame_flag == VP8_LAST_FRAME)
+        ref_fb_idx = cm->lst_fb_idx;
+    else if (ref_frame_flag == VP8_GOLD_FRAME)
+        ref_fb_idx = cm->gld_fb_idx;
+    else if (ref_frame_flag == VP8_ALTR_FRAME)
+        ref_fb_idx = cm->alt_fb_idx;
+    else{
+        vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
+            "Invalid reference frame");
+        return pbi->common.error.error_code;
+    }
+
+    if(cm->yv12_fb[ref_fb_idx].y_height != sd->y_height ||
+        cm->yv12_fb[ref_fb_idx].y_width != sd->y_width ||
+        cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height ||
+        cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width){
+        vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
+            "Incorrect buffer dimensions");
+    }
+    else
+        vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
+
+    return pbi->common.error.error_code;
+}
+
+
+vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
+{
+    VP8_COMMON *cm = &pbi->common;
+    int *ref_fb_ptr = NULL;
+    int free_fb;
+
+    if (ref_frame_flag == VP8_LAST_FRAME)
+        ref_fb_ptr = &cm->lst_fb_idx;
+    else if (ref_frame_flag == VP8_GOLD_FRAME)
+        ref_fb_ptr = &cm->gld_fb_idx;
+    else if (ref_frame_flag == VP8_ALTR_FRAME)
+        ref_fb_ptr = &cm->alt_fb_idx;
+    else{
+        vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
+            "Invalid reference frame");
+        return pbi->common.error.error_code;
+    }
+
+    if(cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height ||
+        cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width ||
+        cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height ||
+        cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width){
+        vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
+            "Incorrect buffer dimensions");
+    }
+    else{
+        /* Find an empty frame buffer. */
+        free_fb = get_free_fb(cm);
+        /* Decrease fb_idx_ref_cnt since it will be increased again in
+         * ref_cnt_fb() below. */
+        cm->fb_idx_ref_cnt[free_fb]--;
+
+        /* Manage the reference counters and copy image. */
+        ref_cnt_fb (cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb);
+        vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]);
+    }
+
+   return pbi->common.error.error_code;
+}
+
+static int get_free_fb (VP8_COMMON *cm)
+{
+    int i;
+    for (i = 0; i < NUM_YV12_BUFFERS; i++)
+        if (cm->fb_idx_ref_cnt[i] == 0)
+            break;
+
+    assert(i < NUM_YV12_BUFFERS);
+    cm->fb_idx_ref_cnt[i] = 1;
+    return i;
+}
+
+static void ref_cnt_fb (int *buf, int *idx, int new_idx)
+{
+    if (buf[*idx] > 0)
+        buf[*idx]--;
+
+    *idx = new_idx;
+
+    buf[new_idx]++;
+}
+
+/* If any buffer copy / swapping is signalled it should be done here. */
+static int swap_frame_buffers (VP8_COMMON *cm)
+{
+    int err = 0;
+
+    /* The alternate reference frame or golden frame can be updated
+     *  using the new, last, or golden/alt ref frame.  If it
+     *  is updated using the newly decoded frame it is a refresh.
+     *  An update using the last or golden/alt ref frame is a copy.
+     */
+    if (cm->copy_buffer_to_arf)
+    {
+        int new_fb = 0;
+
+        if (cm->copy_buffer_to_arf == 1)
+            new_fb = cm->lst_fb_idx;
+        else if (cm->copy_buffer_to_arf == 2)
+            new_fb = cm->gld_fb_idx;
+        else
+            err = -1;
+
+        ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb);
+    }
+
+    if (cm->copy_buffer_to_gf)
+    {
+        int new_fb = 0;
+
+        if (cm->copy_buffer_to_gf == 1)
+            new_fb = cm->lst_fb_idx;
+        else if (cm->copy_buffer_to_gf == 2)
+            new_fb = cm->alt_fb_idx;
+        else
+            err = -1;
+
+        ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb);
+    }
+
+    if (cm->refresh_golden_frame)
+        ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx);
+
+    if (cm->refresh_alt_ref_frame)
+        ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx);
+
+    if (cm->refresh_last_frame)
+    {
+        ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx);
+
+        cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx];
+    }
+    else
+        cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
+
+    cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
+
+    return err;
+}
+
+static int check_fragments_for_errors(VP8D_COMP *pbi)
+{
+    if (!pbi->ec_active &&
+        pbi->fragments.count <= 1 && pbi->fragments.sizes[0] == 0)
+    {
+        VP8_COMMON *cm = &pbi->common;
+
+        /* If error concealment is disabled we won't signal missing frames
+         * to the decoder.
+         */
+        if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1)
+        {
+            /* The last reference shares buffer with another reference
+             * buffer. Move it to its own buffer before setting it as
+             * corrupt, otherwise we will make multiple buffers corrupt.
+             */
+            const int prev_idx = cm->lst_fb_idx;
+            cm->fb_idx_ref_cnt[prev_idx]--;
+            cm->lst_fb_idx = get_free_fb(cm);
+            vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx],
+                                    &cm->yv12_fb[cm->lst_fb_idx]);
+        }
+        /* This is used to signal that we are missing frames.
+         * We do not know if the missing frame(s) was supposed to update
+         * any of the reference buffers, but we act conservative and
+         * mark only the last buffer as corrupted.
+         */
+        cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
+
+        /* Signal that we have no frame to show. */
+        cm->show_frame = 0;
+
+        /* Nothing more to do. */
+        return 0;
+    }
+
+    return 1;
+}
+
+int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size,
+                                  const uint8_t *source,
+                                  int64_t time_stamp)
+{
+    VP8_COMMON *cm = &pbi->common;
+    int retcode = -1;
+    (void)size;
+    (void)source;
+
+    pbi->common.error.error_code = VPX_CODEC_OK;
+
+    retcode = check_fragments_for_errors(pbi);
+    if(retcode <= 0)
+        return retcode;
+
+    cm->new_fb_idx = get_free_fb (cm);
+
+    /* setup reference frames for vp8_decode_frame */
+    pbi->dec_fb_ref[INTRA_FRAME]  = &cm->yv12_fb[cm->new_fb_idx];
+    pbi->dec_fb_ref[LAST_FRAME]   = &cm->yv12_fb[cm->lst_fb_idx];
+    pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx];
+    pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx];
+
+    if (setjmp(pbi->common.error.jmp))
+    {
+       /* We do not know if the missing frame(s) was supposed to update
+        * any of the reference buffers, but we act conservative and
+        * mark only the last buffer as corrupted.
+        */
+        cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
+
+        if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
+          cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
+
+        goto decode_exit;
+    }
+
+    pbi->common.error.setjmp = 1;
+
+    retcode = vp8_decode_frame(pbi);
+
+    if (retcode < 0)
+    {
+        if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
+          cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
+
+        pbi->common.error.error_code = VPX_CODEC_ERROR;
+        goto decode_exit;
+    }
+
+    if (swap_frame_buffers (cm))
+    {
+        pbi->common.error.error_code = VPX_CODEC_ERROR;
+        goto decode_exit;
+    }
+
+    vp8_clear_system_state();
+
+    if (cm->show_frame)
+    {
+        cm->current_video_frame++;
+        cm->show_frame_mi = cm->mi;
+    }
+
+    #if CONFIG_ERROR_CONCEALMENT
+    /* swap the mode infos to storage for future error concealment */
+    if (pbi->ec_enabled && pbi->common.prev_mi)
+    {
+        MODE_INFO* tmp = pbi->common.prev_mi;
+        int row, col;
+        pbi->common.prev_mi = pbi->common.mi;
+        pbi->common.mi = tmp;
+
+        /* Propagate the segment_ids to the next frame */
+        for (row = 0; row < pbi->common.mb_rows; ++row)
+        {
+            for (col = 0; col < pbi->common.mb_cols; ++col)
+            {
+                const int i = row*pbi->common.mode_info_stride + col;
+                pbi->common.mi[i].mbmi.segment_id =
+                        pbi->common.prev_mi[i].mbmi.segment_id;
+            }
+        }
+    }
+#endif
+
+    pbi->ready_for_new_data = 0;
+    pbi->last_time_stamp = time_stamp;
+
+decode_exit:
+    pbi->common.error.setjmp = 0;
+    vp8_clear_system_state();
+    return retcode;
+}
+int vp8dx_get_raw_frame(VP8D_COMP *pbi, YV12_BUFFER_CONFIG *sd, int64_t *time_stamp, int64_t *time_end_stamp, vp8_ppflags_t *flags)
+{
+    int ret = -1;
+
+    if (pbi->ready_for_new_data == 1)
+        return ret;
+
+    /* ie no raw frame to show!!! */
+    if (pbi->common.show_frame == 0)
+        return ret;
+
+    pbi->ready_for_new_data = 1;
+    *time_stamp = pbi->last_time_stamp;
+    *time_end_stamp = 0;
+
+#if CONFIG_POSTPROC
+    ret = vp8_post_proc_frame(&pbi->common, sd, flags);
+#else
+    (void)flags;
+
+    if (pbi->common.frame_to_show)
+    {
+        *sd = *pbi->common.frame_to_show;
+        sd->y_width = pbi->common.Width;
+        sd->y_height = pbi->common.Height;
+        sd->uv_height = pbi->common.Height / 2;
+        ret = 0;
+    }
+    else
+    {
+        ret = -1;
+    }
+
+#endif /*!CONFIG_POSTPROC*/
+    vp8_clear_system_state();
+    return ret;
+}
+
+
+/* This function as written isn't decoder specific, but the encoder has
+ * much faster ways of computing this, so it's ok for it to live in a
+ * decode specific file.
+ */
+int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame )
+{
+    const MODE_INFO *mi = oci->mi;
+    int mb_row, mb_col;
+
+    for (mb_row = 0; mb_row < oci->mb_rows; mb_row++)
+    {
+        for (mb_col = 0; mb_col < oci->mb_cols; mb_col++,mi++)
+        {
+            if( mi->mbmi.ref_frame == ref_frame)
+              return 1;
+        }
+        mi++;
+    }
+    return 0;
+
+}
+
+int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf)
+{
+    if(!fb->use_frame_threads)
+    {
+        /* decoder instance for single thread mode */
+        fb->pbi[0] = create_decompressor(oxcf);
+        if(!fb->pbi[0])
+            return VPX_CODEC_ERROR;
+
+#if CONFIG_MULTITHREAD
+        /* enable row-based threading only when use_frame_threads
+         * is disabled */
+        fb->pbi[0]->max_threads = oxcf->max_threads;
+        vp8_decoder_create_threads(fb->pbi[0]);
+#endif
+    }
+    else
+    {
+        /* TODO : create frame threads and decoder instances for each
+         * thread here */
+    }
+
+    return VPX_CODEC_OK;
+}
+
+int vp8_remove_decoder_instances(struct frame_buffers *fb)
+{
+    if(!fb->use_frame_threads)
+    {
+        VP8D_COMP *pbi = fb->pbi[0];
+
+        if (!pbi)
+            return VPX_CODEC_ERROR;
+#if CONFIG_MULTITHREAD
+        if (pbi->b_multithreaded_rd)
+            vp8mt_de_alloc_temp_buffers(pbi, pbi->common.mb_rows);
+        vp8_decoder_remove_threads(pbi);
+#endif
+
+        /* decoder instance for single thread mode */
+        remove_decompressor(pbi);
+    }
+    else
+    {
+        /* TODO : remove frame threads and decoder instances for each
+         * thread here */
+    }
+
+    return VPX_CODEC_OK;
+}
diff --git a/media/libvpx/vp8/decoder/onyxd_int.h b/media/libvpx/vp8/decoder/onyxd_int.h
new file mode 100644
index 000000000..aa2cc57f7
--- /dev/null
+++ b/media/libvpx/vp8/decoder/onyxd_int.h
@@ -0,0 +1,159 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_DECODER_ONYXD_INT_H_
+#define VP8_DECODER_ONYXD_INT_H_
+
+#include "vpx_config.h"
+#include "vp8/common/onyxd.h"
+#include "treereader.h"
+#include "vp8/common/onyxc_int.h"
+#include "vp8/common/threading.h"
+
+#if CONFIG_ERROR_CONCEALMENT
+#include "ec_types.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct
+{
+    int ithread;
+    void *ptr1;
+    void *ptr2;
+} DECODETHREAD_DATA;
+
+typedef struct
+{
+    MACROBLOCKD  mbd;
+} MB_ROW_DEC;
+
+
+typedef struct
+{
+    int enabled;
+    unsigned int count;
+    const unsigned char *ptrs[MAX_PARTITIONS];
+    unsigned int sizes[MAX_PARTITIONS];
+} FRAGMENT_DATA;
+
+#define MAX_FB_MT_DEC 32
+
+struct frame_buffers
+{
+    /*
+     * this struct will be populated with frame buffer management
+     * info in future commits. */
+
+    /* enable/disable frame-based threading */
+    int     use_frame_threads;
+
+    /* decoder instances */
+    struct VP8D_COMP *pbi[MAX_FB_MT_DEC];
+
+};
+
+typedef struct VP8D_COMP
+{
+    DECLARE_ALIGNED(16, MACROBLOCKD, mb);
+
+    YV12_BUFFER_CONFIG *dec_fb_ref[NUM_YV12_BUFFERS];
+
+    DECLARE_ALIGNED(16, VP8_COMMON, common);
+
+    /* the last partition will be used for the modes/mvs */
+    vp8_reader mbc[MAX_PARTITIONS];
+
+    VP8D_CONFIG oxcf;
+
+    FRAGMENT_DATA fragments;
+
+#if CONFIG_MULTITHREAD
+    /* variable for threading */
+
+    volatile int b_multithreaded_rd;
+    int max_threads;
+    int current_mb_col_main;
+    unsigned int decoding_thread_count;
+    int allocated_decoding_thread_count;
+
+    int mt_baseline_filter_level[MAX_MB_SEGMENTS];
+    int sync_range;
+    int *mt_current_mb_col;                  /* Each row remembers its already decoded column. */
+
+    unsigned char **mt_yabove_row;           /* mb_rows x width */
+    unsigned char **mt_uabove_row;
+    unsigned char **mt_vabove_row;
+    unsigned char **mt_yleft_col;            /* mb_rows x 16 */
+    unsigned char **mt_uleft_col;            /* mb_rows x 8 */
+    unsigned char **mt_vleft_col;            /* mb_rows x 8 */
+
+    MB_ROW_DEC           *mb_row_di;
+    DECODETHREAD_DATA    *de_thread_data;
+
+    pthread_t           *h_decoding_thread;
+    sem_t               *h_event_start_decoding;
+    sem_t                h_event_end_decoding;
+    /* end of threading data */
+#endif
+
+    int64_t last_time_stamp;
+    int   ready_for_new_data;
+
+    vp8_prob prob_intra;
+    vp8_prob prob_last;
+    vp8_prob prob_gf;
+    vp8_prob prob_skip_false;
+
+#if CONFIG_ERROR_CONCEALMENT
+    MB_OVERLAP *overlaps;
+    /* the mb num from which modes and mvs (first partition) are corrupt */
+    unsigned int mvs_corrupt_from_mb;
+#endif
+    int ec_enabled;
+    int ec_active;
+    int decoded_key_frame;
+    int independent_partitions;
+    int frame_corrupt_residual;
+
+    vpx_decrypt_cb decrypt_cb;
+    void *decrypt_state;
+} VP8D_COMP;
+
+int vp8_decode_frame(VP8D_COMP *cpi);
+
+int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf);
+int vp8_remove_decoder_instances(struct frame_buffers *fb);
+
+#if CONFIG_DEBUG
+#define CHECK_MEM_ERROR(lval,expr) do {\
+        lval = (expr); \
+        if(!lval) \
+            vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,\
+                               "Failed to allocate "#lval" at %s:%d", \
+                               __FILE__,__LINE__);\
+    } while(0)
+#else
+#define CHECK_MEM_ERROR(lval,expr) do {\
+        lval = (expr); \
+        if(!lval) \
+            vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,\
+                               "Failed to allocate "#lval);\
+    } while(0)
+#endif
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_ONYXD_INT_H_
diff --git a/media/libvpx/vp8/decoder/threading.c b/media/libvpx/vp8/decoder/threading.c
new file mode 100644
index 000000000..a76672fa8
--- /dev/null
+++ b/media/libvpx/vp8/decoder/threading.c
@@ -0,0 +1,915 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#if !defined(WIN32) && CONFIG_OS_SUPPORT == 1
+# include <unistd.h>
+#endif
+#include "onyxd_int.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/threading.h"
+
+#include "vp8/common/loopfilter.h"
+#include "vp8/common/extend.h"
+#include "vpx_ports/vpx_timer.h"
+#include "detokenize.h"
+#include "vp8/common/reconintra4x4.h"
+#include "vp8/common/reconinter.h"
+#include "vp8/common/setupintrarecon.h"
+#if CONFIG_ERROR_CONCEALMENT
+#include "error_concealment.h"
+#endif
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+
+#define CALLOC_ARRAY(p, n) CHECK_MEM_ERROR((p), vpx_calloc(sizeof(*(p)), (n)))
+#define CALLOC_ARRAY_ALIGNED(p, n, algn) do {                      \
+  CHECK_MEM_ERROR((p), vpx_memalign((algn), sizeof(*(p)) * (n)));  \
+  memset((p), 0, (n) * sizeof(*(p)));                              \
+} while (0)
+
+
+void vp8_mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd);
+
+static void setup_decoding_thread_data(VP8D_COMP *pbi, MACROBLOCKD *xd, MB_ROW_DEC *mbrd, int count)
+{
+    VP8_COMMON *const pc = & pbi->common;
+    int i;
+
+    for (i = 0; i < count; i++)
+    {
+        MACROBLOCKD *mbd = &mbrd[i].mbd;
+        mbd->subpixel_predict        = xd->subpixel_predict;
+        mbd->subpixel_predict8x4     = xd->subpixel_predict8x4;
+        mbd->subpixel_predict8x8     = xd->subpixel_predict8x8;
+        mbd->subpixel_predict16x16   = xd->subpixel_predict16x16;
+
+        mbd->mode_info_context = pc->mi   + pc->mode_info_stride * (i + 1);
+        mbd->mode_info_stride  = pc->mode_info_stride;
+
+        mbd->frame_type = pc->frame_type;
+        mbd->pre = xd->pre;
+        mbd->dst = xd->dst;
+
+        mbd->segmentation_enabled    = xd->segmentation_enabled;
+        mbd->mb_segement_abs_delta     = xd->mb_segement_abs_delta;
+        memcpy(mbd->segment_feature_data, xd->segment_feature_data, sizeof(xd->segment_feature_data));
+
+        /*signed char ref_lf_deltas[MAX_REF_LF_DELTAS];*/
+        memcpy(mbd->ref_lf_deltas, xd->ref_lf_deltas, sizeof(xd->ref_lf_deltas));
+        /*signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];*/
+        memcpy(mbd->mode_lf_deltas, xd->mode_lf_deltas, sizeof(xd->mode_lf_deltas));
+        /*unsigned char mode_ref_lf_delta_enabled;
+        unsigned char mode_ref_lf_delta_update;*/
+        mbd->mode_ref_lf_delta_enabled    = xd->mode_ref_lf_delta_enabled;
+        mbd->mode_ref_lf_delta_update    = xd->mode_ref_lf_delta_update;
+
+        mbd->current_bc = &pbi->mbc[0];
+
+        memcpy(mbd->dequant_y1_dc, xd->dequant_y1_dc, sizeof(xd->dequant_y1_dc));
+        memcpy(mbd->dequant_y1, xd->dequant_y1, sizeof(xd->dequant_y1));
+        memcpy(mbd->dequant_y2, xd->dequant_y2, sizeof(xd->dequant_y2));
+        memcpy(mbd->dequant_uv, xd->dequant_uv, sizeof(xd->dequant_uv));
+
+        mbd->fullpixel_mask = 0xffffffff;
+
+        if (pc->full_pixel)
+            mbd->fullpixel_mask = 0xfffffff8;
+
+    }
+
+    for (i = 0; i < pc->mb_rows; i++)
+        pbi->mt_current_mb_col[i] = -1;
+}
+
+static void mt_decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
+                                 unsigned int mb_idx)
+{
+    MB_PREDICTION_MODE mode;
+    int i;
+#if CONFIG_ERROR_CONCEALMENT
+    int corruption_detected = 0;
+#else
+    (void)mb_idx;
+#endif
+
+    if (xd->mode_info_context->mbmi.mb_skip_coeff)
+    {
+        vp8_reset_mb_tokens_context(xd);
+    }
+    else if (!vp8dx_bool_error(xd->current_bc))
+    {
+        int eobtotal;
+        eobtotal = vp8_decode_mb_tokens(pbi, xd);
+
+        /* Special case:  Force the loopfilter to skip when eobtotal is zero */
+        xd->mode_info_context->mbmi.mb_skip_coeff = (eobtotal==0);
+    }
+
+    mode = xd->mode_info_context->mbmi.mode;
+
+    if (xd->segmentation_enabled)
+        vp8_mb_init_dequantizer(pbi, xd);
+
+
+#if CONFIG_ERROR_CONCEALMENT
+
+    if(pbi->ec_active)
+    {
+        int throw_residual;
+        /* When we have independent partitions we can apply residual even
+         * though other partitions within the frame are corrupt.
+         */
+        throw_residual = (!pbi->independent_partitions &&
+                          pbi->frame_corrupt_residual);
+        throw_residual = (throw_residual || vp8dx_bool_error(xd->current_bc));
+
+        if ((mb_idx >= pbi->mvs_corrupt_from_mb || throw_residual))
+        {
+            /* MB with corrupt residuals or corrupt mode/motion vectors.
+             * Better to use the predictor as reconstruction.
+             */
+            pbi->frame_corrupt_residual = 1;
+            memset(xd->qcoeff, 0, sizeof(xd->qcoeff));
+            vp8_conceal_corrupt_mb(xd);
+
+
+            corruption_detected = 1;
+
+            /* force idct to be skipped for B_PRED and use the
+             * prediction only for reconstruction
+             * */
+            memset(xd->eobs, 0, 25);
+        }
+    }
+#endif
+
+    /* do prediction */
+    if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
+    {
+        vp8_build_intra_predictors_mbuv_s(xd,
+                                          xd->recon_above[1],
+                                          xd->recon_above[2],
+                                          xd->recon_left[1],
+                                          xd->recon_left[2],
+                                          xd->recon_left_stride[1],
+                                          xd->dst.u_buffer, xd->dst.v_buffer,
+                                          xd->dst.uv_stride);
+
+        if (mode != B_PRED)
+        {
+            vp8_build_intra_predictors_mby_s(xd,
+                                                 xd->recon_above[0],
+                                                 xd->recon_left[0],
+                                                 xd->recon_left_stride[0],
+                                                 xd->dst.y_buffer,
+                                                 xd->dst.y_stride);
+        }
+        else
+        {
+            short *DQC = xd->dequant_y1;
+            int dst_stride = xd->dst.y_stride;
+
+            /* clear out residual eob info */
+            if(xd->mode_info_context->mbmi.mb_skip_coeff)
+                memset(xd->eobs, 0, 25);
+
+            intra_prediction_down_copy(xd, xd->recon_above[0] + 16);
+
+            for (i = 0; i < 16; i++)
+            {
+                BLOCKD *b = &xd->block[i];
+                unsigned char *dst = xd->dst.y_buffer + b->offset;
+                B_PREDICTION_MODE b_mode =
+                    xd->mode_info_context->bmi[i].as_mode;
+                unsigned char *Above;
+                unsigned char *yleft;
+                int left_stride;
+                unsigned char top_left;
+
+                /*Caution: For some b_mode, it needs 8 pixels (4 above + 4 above-right).*/
+                if (i < 4 && pbi->common.filter_level)
+                    Above = xd->recon_above[0] + b->offset;
+                else
+                    Above = dst - dst_stride;
+
+                if (i%4==0 && pbi->common.filter_level)
+                {
+                    yleft = xd->recon_left[0] + i;
+                    left_stride = 1;
+                }
+                else
+                {
+                    yleft = dst - 1;
+                    left_stride = dst_stride;
+                }
+
+                if ((i==4 || i==8 || i==12) && pbi->common.filter_level)
+                    top_left = *(xd->recon_left[0] + i - 1);
+                else
+                    top_left = Above[-1];
+
+                vp8_intra4x4_predict(Above, yleft, left_stride,
+                                     b_mode, dst, dst_stride, top_left);
+
+                if (xd->eobs[i] )
+                {
+                    if (xd->eobs[i] > 1)
+                    {
+                        vp8_dequant_idct_add(b->qcoeff, DQC, dst, dst_stride);
+                    }
+                    else
+                    {
+                        vp8_dc_only_idct_add(b->qcoeff[0] * DQC[0],
+                                             dst, dst_stride, dst, dst_stride);
+                        memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0]));
+                    }
+                }
+            }
+        }
+    }
+    else
+    {
+        vp8_build_inter_predictors_mb(xd);
+    }
+
+
+#if CONFIG_ERROR_CONCEALMENT
+    if (corruption_detected)
+    {
+        return;
+    }
+#endif
+
+    if(!xd->mode_info_context->mbmi.mb_skip_coeff)
+    {
+        /* dequantization and idct */
+        if (mode != B_PRED)
+        {
+            short *DQC = xd->dequant_y1;
+
+            if (mode != SPLITMV)
+            {
+                BLOCKD *b = &xd->block[24];
+
+                /* do 2nd order transform on the dc block */
+                if (xd->eobs[24] > 1)
+                {
+                    vp8_dequantize_b(b, xd->dequant_y2);
+
+                    vp8_short_inv_walsh4x4(&b->dqcoeff[0],
+                        xd->qcoeff);
+                    memset(b->qcoeff, 0, 16 * sizeof(b->qcoeff[0]));
+                }
+                else
+                {
+                    b->dqcoeff[0] = b->qcoeff[0] * xd->dequant_y2[0];
+                    vp8_short_inv_walsh4x4_1(&b->dqcoeff[0],
+                        xd->qcoeff);
+                    memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0]));
+                }
+
+                /* override the dc dequant constant in order to preserve the
+                 * dc components
+                 */
+                DQC = xd->dequant_y1_dc;
+            }
+
+            vp8_dequant_idct_add_y_block
+                            (xd->qcoeff, DQC,
+                             xd->dst.y_buffer,
+                             xd->dst.y_stride, xd->eobs);
+        }
+
+        vp8_dequant_idct_add_uv_block
+                        (xd->qcoeff+16*16, xd->dequant_uv,
+                         xd->dst.u_buffer, xd->dst.v_buffer,
+                         xd->dst.uv_stride, xd->eobs+16);
+    }
+}
+
+static void mt_decode_mb_rows(VP8D_COMP *pbi, MACROBLOCKD *xd, int start_mb_row)
+{
+    volatile const int *last_row_current_mb_col;
+    volatile int *current_mb_col;
+    int mb_row;
+    VP8_COMMON *pc = &pbi->common;
+    const int nsync = pbi->sync_range;
+    const int first_row_no_sync_above = pc->mb_cols + nsync;
+    int num_part = 1 << pbi->common.multi_token_partition;
+    int last_mb_row = start_mb_row;
+
+    YV12_BUFFER_CONFIG *yv12_fb_new = pbi->dec_fb_ref[INTRA_FRAME];
+    YV12_BUFFER_CONFIG *yv12_fb_lst = pbi->dec_fb_ref[LAST_FRAME];
+
+    int recon_y_stride = yv12_fb_new->y_stride;
+    int recon_uv_stride = yv12_fb_new->uv_stride;
+
+    unsigned char *ref_buffer[MAX_REF_FRAMES][3];
+    unsigned char *dst_buffer[3];
+    int i;
+    int ref_fb_corrupted[MAX_REF_FRAMES];
+
+    ref_fb_corrupted[INTRA_FRAME] = 0;
+
+    for(i = 1; i < MAX_REF_FRAMES; i++)
+    {
+        YV12_BUFFER_CONFIG *this_fb = pbi->dec_fb_ref[i];
+
+        ref_buffer[i][0] = this_fb->y_buffer;
+        ref_buffer[i][1] = this_fb->u_buffer;
+        ref_buffer[i][2] = this_fb->v_buffer;
+
+        ref_fb_corrupted[i] = this_fb->corrupted;
+    }
+
+    dst_buffer[0] = yv12_fb_new->y_buffer;
+    dst_buffer[1] = yv12_fb_new->u_buffer;
+    dst_buffer[2] = yv12_fb_new->v_buffer;
+
+    xd->up_available = (start_mb_row != 0);
+
+    for (mb_row = start_mb_row; mb_row < pc->mb_rows; mb_row += (pbi->decoding_thread_count + 1))
+    {
+       int recon_yoffset, recon_uvoffset;
+       int mb_col;
+       int filter_level;
+       loop_filter_info_n *lfi_n = &pc->lf_info;
+
+       /* save last row processed by this thread */
+       last_mb_row = mb_row;
+       /* select bool coder for current partition */
+       xd->current_bc =  &pbi->mbc[mb_row%num_part];
+
+       if (mb_row > 0)
+           last_row_current_mb_col = &pbi->mt_current_mb_col[mb_row -1];
+       else
+           last_row_current_mb_col = &first_row_no_sync_above;
+
+       current_mb_col = &pbi->mt_current_mb_col[mb_row];
+
+       recon_yoffset = mb_row * recon_y_stride * 16;
+       recon_uvoffset = mb_row * recon_uv_stride * 8;
+
+       /* reset contexts */
+       xd->above_context = pc->above_context;
+       memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES));
+
+       xd->left_available = 0;
+
+       xd->mb_to_top_edge = -((mb_row * 16)) << 3;
+       xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3;
+
+       if (pbi->common.filter_level)
+       {
+          xd->recon_above[0] = pbi->mt_yabove_row[mb_row] + 0*16 +32;
+          xd->recon_above[1] = pbi->mt_uabove_row[mb_row] + 0*8 +16;
+          xd->recon_above[2] = pbi->mt_vabove_row[mb_row] + 0*8 +16;
+
+          xd->recon_left[0] = pbi->mt_yleft_col[mb_row];
+          xd->recon_left[1] = pbi->mt_uleft_col[mb_row];
+          xd->recon_left[2] = pbi->mt_vleft_col[mb_row];
+
+          /* TODO: move to outside row loop */
+          xd->recon_left_stride[0] = 1;
+          xd->recon_left_stride[1] = 1;
+       }
+       else
+       {
+          xd->recon_above[0] = dst_buffer[0] + recon_yoffset;
+          xd->recon_above[1] = dst_buffer[1] + recon_uvoffset;
+          xd->recon_above[2] = dst_buffer[2] + recon_uvoffset;
+
+          xd->recon_left[0] = xd->recon_above[0] - 1;
+          xd->recon_left[1] = xd->recon_above[1] - 1;
+          xd->recon_left[2] = xd->recon_above[2] - 1;
+
+          xd->recon_above[0] -= xd->dst.y_stride;
+          xd->recon_above[1] -= xd->dst.uv_stride;
+          xd->recon_above[2] -= xd->dst.uv_stride;
+
+          /* TODO: move to outside row loop */
+          xd->recon_left_stride[0] = xd->dst.y_stride;
+          xd->recon_left_stride[1] = xd->dst.uv_stride;
+
+          setup_intra_recon_left(xd->recon_left[0], xd->recon_left[1],
+                                 xd->recon_left[2], xd->dst.y_stride,
+                                 xd->dst.uv_stride);
+       }
+
+       for (mb_col = 0; mb_col < pc->mb_cols; mb_col++)
+       {
+           *current_mb_col = mb_col - 1;
+
+           if ((mb_col & (nsync - 1)) == 0)
+           {
+               while (mb_col > (*last_row_current_mb_col - nsync))
+               {
+                   x86_pause_hint();
+                   thread_sleep(0);
+               }
+           }
+
+           /* Distance of MB to the various image edges.
+            * These are specified to 8th pel as they are always
+            * compared to values that are in 1/8th pel units.
+            */
+           xd->mb_to_left_edge = -((mb_col * 16) << 3);
+           xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3;
+
+    #if CONFIG_ERROR_CONCEALMENT
+           {
+               int corrupt_residual =
+                           (!pbi->independent_partitions &&
+                           pbi->frame_corrupt_residual) ||
+                           vp8dx_bool_error(xd->current_bc);
+               if (pbi->ec_active &&
+                   (xd->mode_info_context->mbmi.ref_frame ==
+                                                    INTRA_FRAME) &&
+                   corrupt_residual)
+               {
+                   /* We have an intra block with corrupt
+                    * coefficients, better to conceal with an inter
+                    * block.
+                    * Interpolate MVs from neighboring MBs
+                    *
+                    * Note that for the first mb with corrupt
+                    * residual in a frame, we might not discover
+                    * that before decoding the residual. That
+                    * happens after this check, and therefore no
+                    * inter concealment will be done.
+                    */
+                   vp8_interpolate_motion(xd,
+                                          mb_row, mb_col,
+                                          pc->mb_rows, pc->mb_cols,
+                                          pc->mode_info_stride);
+               }
+           }
+    #endif
+
+
+           xd->dst.y_buffer = dst_buffer[0] + recon_yoffset;
+           xd->dst.u_buffer = dst_buffer[1] + recon_uvoffset;
+           xd->dst.v_buffer = dst_buffer[2] + recon_uvoffset;
+
+           xd->pre.y_buffer = ref_buffer[xd->mode_info_context->mbmi.ref_frame][0] + recon_yoffset;
+           xd->pre.u_buffer = ref_buffer[xd->mode_info_context->mbmi.ref_frame][1] + recon_uvoffset;
+           xd->pre.v_buffer = ref_buffer[xd->mode_info_context->mbmi.ref_frame][2] + recon_uvoffset;
+
+           /* propagate errors from reference frames */
+           xd->corrupted |= ref_fb_corrupted[xd->mode_info_context->mbmi.ref_frame];
+
+           mt_decode_macroblock(pbi, xd, 0);
+
+           xd->left_available = 1;
+
+           /* check if the boolean decoder has suffered an error */
+           xd->corrupted |= vp8dx_bool_error(xd->current_bc);
+
+           xd->recon_above[0] += 16;
+           xd->recon_above[1] += 8;
+           xd->recon_above[2] += 8;
+
+           if (!pbi->common.filter_level)
+           {
+              xd->recon_left[0] += 16;
+              xd->recon_left[1] += 8;
+              xd->recon_left[2] += 8;
+           }
+
+           if (pbi->common.filter_level)
+           {
+               int skip_lf = (xd->mode_info_context->mbmi.mode != B_PRED &&
+                               xd->mode_info_context->mbmi.mode != SPLITMV &&
+                               xd->mode_info_context->mbmi.mb_skip_coeff);
+
+               const int mode_index = lfi_n->mode_lf_lut[xd->mode_info_context->mbmi.mode];
+               const int seg = xd->mode_info_context->mbmi.segment_id;
+               const int ref_frame = xd->mode_info_context->mbmi.ref_frame;
+
+               filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
+
+               if( mb_row != pc->mb_rows-1 )
+               {
+                   /* Save decoded MB last row data for next-row decoding */
+                   memcpy((pbi->mt_yabove_row[mb_row + 1] + 32 + mb_col*16), (xd->dst.y_buffer + 15 * recon_y_stride), 16);
+                   memcpy((pbi->mt_uabove_row[mb_row + 1] + 16 + mb_col*8), (xd->dst.u_buffer + 7 * recon_uv_stride), 8);
+                   memcpy((pbi->mt_vabove_row[mb_row + 1] + 16 + mb_col*8), (xd->dst.v_buffer + 7 * recon_uv_stride), 8);
+               }
+
+               /* save left_col for next MB decoding */
+               if(mb_col != pc->mb_cols-1)
+               {
+                   MODE_INFO *next = xd->mode_info_context +1;
+
+                   if (next->mbmi.ref_frame == INTRA_FRAME)
+                   {
+                       for (i = 0; i < 16; i++)
+                           pbi->mt_yleft_col[mb_row][i] = xd->dst.y_buffer [i* recon_y_stride + 15];
+                       for (i = 0; i < 8; i++)
+                       {
+                           pbi->mt_uleft_col[mb_row][i] = xd->dst.u_buffer [i* recon_uv_stride + 7];
+                           pbi->mt_vleft_col[mb_row][i] = xd->dst.v_buffer [i* recon_uv_stride + 7];
+                       }
+                   }
+               }
+
+               /* loopfilter on this macroblock. */
+               if (filter_level)
+               {
+                   if(pc->filter_type == NORMAL_LOOPFILTER)
+                   {
+                       loop_filter_info lfi;
+                       FRAME_TYPE frame_type = pc->frame_type;
+                       const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
+                       lfi.mblim = lfi_n->mblim[filter_level];
+                       lfi.blim = lfi_n->blim[filter_level];
+                       lfi.lim = lfi_n->lim[filter_level];
+                       lfi.hev_thr = lfi_n->hev_thr[hev_index];
+
+                       if (mb_col > 0)
+                           vp8_loop_filter_mbv
+                           (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi);
+
+                       if (!skip_lf)
+                           vp8_loop_filter_bv
+                           (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi);
+
+                       /* don't apply across umv border */
+                       if (mb_row > 0)
+                           vp8_loop_filter_mbh
+                           (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi);
+
+                       if (!skip_lf)
+                           vp8_loop_filter_bh
+                           (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer,  recon_y_stride, recon_uv_stride, &lfi);
+                   }
+                   else
+                   {
+                       if (mb_col > 0)
+                           vp8_loop_filter_simple_mbv
+                           (xd->dst.y_buffer, recon_y_stride, lfi_n->mblim[filter_level]);
+
+                       if (!skip_lf)
+                           vp8_loop_filter_simple_bv
+                           (xd->dst.y_buffer, recon_y_stride, lfi_n->blim[filter_level]);
+
+                       /* don't apply across umv border */
+                       if (mb_row > 0)
+                           vp8_loop_filter_simple_mbh
+                           (xd->dst.y_buffer, recon_y_stride, lfi_n->mblim[filter_level]);
+
+                       if (!skip_lf)
+                           vp8_loop_filter_simple_bh
+                           (xd->dst.y_buffer, recon_y_stride, lfi_n->blim[filter_level]);
+                   }
+               }
+
+           }
+
+           recon_yoffset += 16;
+           recon_uvoffset += 8;
+
+           ++xd->mode_info_context;  /* next mb */
+
+           xd->above_context++;
+       }
+
+       /* adjust to the next row of mbs */
+       if (pbi->common.filter_level)
+       {
+           if(mb_row != pc->mb_rows-1)
+           {
+               int lasty = yv12_fb_lst->y_width + VP8BORDERINPIXELS;
+               int lastuv = (yv12_fb_lst->y_width>>1) + (VP8BORDERINPIXELS>>1);
+
+               for (i = 0; i < 4; i++)
+               {
+                   pbi->mt_yabove_row[mb_row +1][lasty + i] = pbi->mt_yabove_row[mb_row +1][lasty -1];
+                   pbi->mt_uabove_row[mb_row +1][lastuv + i] = pbi->mt_uabove_row[mb_row +1][lastuv -1];
+                   pbi->mt_vabove_row[mb_row +1][lastuv + i] = pbi->mt_vabove_row[mb_row +1][lastuv -1];
+               }
+           }
+       }
+       else
+           vp8_extend_mb_row(yv12_fb_new, xd->dst.y_buffer + 16,
+                             xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
+
+       /* last MB of row is ready just after extension is done */
+       *current_mb_col = mb_col + nsync;
+
+       ++xd->mode_info_context;      /* skip prediction column */
+       xd->up_available = 1;
+
+       /* since we have multithread */
+       xd->mode_info_context += xd->mode_info_stride * pbi->decoding_thread_count;
+    }
+
+    /* signal end of frame decoding if this thread processed the last mb_row */
+    if (last_mb_row == (pc->mb_rows - 1))
+        sem_post(&pbi->h_event_end_decoding);
+
+}
+
+
+static THREAD_FUNCTION thread_decoding_proc(void *p_data)
+{
+    int ithread = ((DECODETHREAD_DATA *)p_data)->ithread;
+    VP8D_COMP *pbi = (VP8D_COMP *)(((DECODETHREAD_DATA *)p_data)->ptr1);
+    MB_ROW_DEC *mbrd = (MB_ROW_DEC *)(((DECODETHREAD_DATA *)p_data)->ptr2);
+    ENTROPY_CONTEXT_PLANES mb_row_left_context;
+
+    while (1)
+    {
+        if (pbi->b_multithreaded_rd == 0)
+            break;
+
+        if (sem_wait(&pbi->h_event_start_decoding[ithread]) == 0)
+        {
+            if (pbi->b_multithreaded_rd == 0)
+                break;
+            else
+            {
+                MACROBLOCKD *xd = &mbrd->mbd;
+                xd->left_context = &mb_row_left_context;
+
+                mt_decode_mb_rows(pbi, xd, ithread+1);
+            }
+        }
+    }
+
+    return 0 ;
+}
+
+
+void vp8_decoder_create_threads(VP8D_COMP *pbi)
+{
+    int core_count = 0;
+    unsigned int ithread;
+
+    pbi->b_multithreaded_rd = 0;
+    pbi->allocated_decoding_thread_count = 0;
+
+    /* limit decoding threads to the max number of token partitions */
+    core_count = (pbi->max_threads > 8) ? 8 : pbi->max_threads;
+
+    /* limit decoding threads to the available cores */
+    if (core_count > pbi->common.processor_core_count)
+        core_count = pbi->common.processor_core_count;
+
+    if (core_count > 1)
+    {
+        pbi->b_multithreaded_rd = 1;
+        pbi->decoding_thread_count = core_count - 1;
+
+        CALLOC_ARRAY(pbi->h_decoding_thread, pbi->decoding_thread_count);
+        CALLOC_ARRAY(pbi->h_event_start_decoding, pbi->decoding_thread_count);
+        CALLOC_ARRAY_ALIGNED(pbi->mb_row_di, pbi->decoding_thread_count, 32);
+        CALLOC_ARRAY(pbi->de_thread_data, pbi->decoding_thread_count);
+
+        for (ithread = 0; ithread < pbi->decoding_thread_count; ithread++)
+        {
+            sem_init(&pbi->h_event_start_decoding[ithread], 0, 0);
+
+            vp8_setup_block_dptrs(&pbi->mb_row_di[ithread].mbd);
+
+            pbi->de_thread_data[ithread].ithread  = ithread;
+            pbi->de_thread_data[ithread].ptr1     = (void *)pbi;
+            pbi->de_thread_data[ithread].ptr2     = (void *) &pbi->mb_row_di[ithread];
+
+            pthread_create(&pbi->h_decoding_thread[ithread], 0, thread_decoding_proc, (&pbi->de_thread_data[ithread]));
+        }
+
+        sem_init(&pbi->h_event_end_decoding, 0, 0);
+
+        pbi->allocated_decoding_thread_count = pbi->decoding_thread_count;
+    }
+}
+
+
+void vp8mt_de_alloc_temp_buffers(VP8D_COMP *pbi, int mb_rows)
+{
+    int i;
+
+    if (pbi->b_multithreaded_rd)
+    {
+            vpx_free(pbi->mt_current_mb_col);
+            pbi->mt_current_mb_col = NULL ;
+
+        /* Free above_row buffers. */
+        if (pbi->mt_yabove_row)
+        {
+            for (i=0; i< mb_rows; i++)
+            {
+                    vpx_free(pbi->mt_yabove_row[i]);
+                    pbi->mt_yabove_row[i] = NULL ;
+            }
+            vpx_free(pbi->mt_yabove_row);
+            pbi->mt_yabove_row = NULL ;
+        }
+
+        if (pbi->mt_uabove_row)
+        {
+            for (i=0; i< mb_rows; i++)
+            {
+                    vpx_free(pbi->mt_uabove_row[i]);
+                    pbi->mt_uabove_row[i] = NULL ;
+            }
+            vpx_free(pbi->mt_uabove_row);
+            pbi->mt_uabove_row = NULL ;
+        }
+
+        if (pbi->mt_vabove_row)
+        {
+            for (i=0; i< mb_rows; i++)
+            {
+                    vpx_free(pbi->mt_vabove_row[i]);
+                    pbi->mt_vabove_row[i] = NULL ;
+            }
+            vpx_free(pbi->mt_vabove_row);
+            pbi->mt_vabove_row = NULL ;
+        }
+
+        /* Free left_col buffers. */
+        if (pbi->mt_yleft_col)
+        {
+            for (i=0; i< mb_rows; i++)
+            {
+                    vpx_free(pbi->mt_yleft_col[i]);
+                    pbi->mt_yleft_col[i] = NULL ;
+            }
+            vpx_free(pbi->mt_yleft_col);
+            pbi->mt_yleft_col = NULL ;
+        }
+
+        if (pbi->mt_uleft_col)
+        {
+            for (i=0; i< mb_rows; i++)
+            {
+                    vpx_free(pbi->mt_uleft_col[i]);
+                    pbi->mt_uleft_col[i] = NULL ;
+            }
+            vpx_free(pbi->mt_uleft_col);
+            pbi->mt_uleft_col = NULL ;
+        }
+
+        if (pbi->mt_vleft_col)
+        {
+            for (i=0; i< mb_rows; i++)
+            {
+                    vpx_free(pbi->mt_vleft_col[i]);
+                    pbi->mt_vleft_col[i] = NULL ;
+            }
+            vpx_free(pbi->mt_vleft_col);
+            pbi->mt_vleft_col = NULL ;
+        }
+    }
+}
+
+
+void vp8mt_alloc_temp_buffers(VP8D_COMP *pbi, int width, int prev_mb_rows)
+{
+    VP8_COMMON *const pc = & pbi->common;
+    int i;
+    int uv_width;
+
+    if (pbi->b_multithreaded_rd)
+    {
+        vp8mt_de_alloc_temp_buffers(pbi, prev_mb_rows);
+
+        /* our internal buffers are always multiples of 16 */
+        if ((width & 0xf) != 0)
+            width += 16 - (width & 0xf);
+
+        if (width < 640) pbi->sync_range = 1;
+        else if (width <= 1280) pbi->sync_range = 8;
+        else if (width <= 2560) pbi->sync_range =16;
+        else pbi->sync_range = 32;
+
+        uv_width = width >>1;
+
+        /* Allocate an int for each mb row. */
+        CALLOC_ARRAY(pbi->mt_current_mb_col, pc->mb_rows);
+
+        /* Allocate memory for above_row buffers. */
+        CALLOC_ARRAY(pbi->mt_yabove_row, pc->mb_rows);
+        for (i = 0; i < pc->mb_rows; i++)
+            CHECK_MEM_ERROR(pbi->mt_yabove_row[i], vpx_memalign(16,sizeof(unsigned char) * (width + (VP8BORDERINPIXELS<<1))));
+
+        CALLOC_ARRAY(pbi->mt_uabove_row, pc->mb_rows);
+        for (i = 0; i < pc->mb_rows; i++)
+            CHECK_MEM_ERROR(pbi->mt_uabove_row[i], vpx_memalign(16,sizeof(unsigned char) * (uv_width + VP8BORDERINPIXELS)));
+
+        CALLOC_ARRAY(pbi->mt_vabove_row, pc->mb_rows);
+        for (i = 0; i < pc->mb_rows; i++)
+            CHECK_MEM_ERROR(pbi->mt_vabove_row[i], vpx_memalign(16,sizeof(unsigned char) * (uv_width + VP8BORDERINPIXELS)));
+
+        /* Allocate memory for left_col buffers. */
+        CALLOC_ARRAY(pbi->mt_yleft_col, pc->mb_rows);
+        for (i = 0; i < pc->mb_rows; i++)
+            CHECK_MEM_ERROR(pbi->mt_yleft_col[i], vpx_calloc(sizeof(unsigned char) * 16, 1));
+
+        CALLOC_ARRAY(pbi->mt_uleft_col, pc->mb_rows);
+        for (i = 0; i < pc->mb_rows; i++)
+            CHECK_MEM_ERROR(pbi->mt_uleft_col[i], vpx_calloc(sizeof(unsigned char) * 8, 1));
+
+        CALLOC_ARRAY(pbi->mt_vleft_col, pc->mb_rows);
+        for (i = 0; i < pc->mb_rows; i++)
+            CHECK_MEM_ERROR(pbi->mt_vleft_col[i], vpx_calloc(sizeof(unsigned char) * 8, 1));
+    }
+}
+
+
+void vp8_decoder_remove_threads(VP8D_COMP *pbi)
+{
+    /* shutdown MB Decoding thread; */
+    if (pbi->b_multithreaded_rd)
+    {
+        int i;
+
+        pbi->b_multithreaded_rd = 0;
+
+        /* allow all threads to exit */
+        for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
+        {
+            sem_post(&pbi->h_event_start_decoding[i]);
+            pthread_join(pbi->h_decoding_thread[i], NULL);
+        }
+
+        for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
+        {
+            sem_destroy(&pbi->h_event_start_decoding[i]);
+        }
+
+        sem_destroy(&pbi->h_event_end_decoding);
+
+            vpx_free(pbi->h_decoding_thread);
+            pbi->h_decoding_thread = NULL;
+
+            vpx_free(pbi->h_event_start_decoding);
+            pbi->h_event_start_decoding = NULL;
+
+            vpx_free(pbi->mb_row_di);
+            pbi->mb_row_di = NULL ;
+
+            vpx_free(pbi->de_thread_data);
+            pbi->de_thread_data = NULL;
+    }
+}
+
+void vp8mt_decode_mb_rows( VP8D_COMP *pbi, MACROBLOCKD *xd)
+{
+    VP8_COMMON *pc = &pbi->common;
+    unsigned int i;
+    int j;
+
+    int filter_level = pc->filter_level;
+    YV12_BUFFER_CONFIG *yv12_fb_new = pbi->dec_fb_ref[INTRA_FRAME];
+
+    if (filter_level)
+    {
+        /* Set above_row buffer to 127 for decoding first MB row */
+        memset(pbi->mt_yabove_row[0] + VP8BORDERINPIXELS-1, 127, yv12_fb_new->y_width + 5);
+        memset(pbi->mt_uabove_row[0] + (VP8BORDERINPIXELS>>1)-1, 127, (yv12_fb_new->y_width>>1) +5);
+        memset(pbi->mt_vabove_row[0] + (VP8BORDERINPIXELS>>1)-1, 127, (yv12_fb_new->y_width>>1) +5);
+
+        for (j=1; j<pc->mb_rows; j++)
+        {
+            memset(pbi->mt_yabove_row[j] + VP8BORDERINPIXELS-1, (unsigned char)129, 1);
+            memset(pbi->mt_uabove_row[j] + (VP8BORDERINPIXELS>>1)-1, (unsigned char)129, 1);
+            memset(pbi->mt_vabove_row[j] + (VP8BORDERINPIXELS>>1)-1, (unsigned char)129, 1);
+        }
+
+        /* Set left_col to 129 initially */
+        for (j=0; j<pc->mb_rows; j++)
+        {
+            memset(pbi->mt_yleft_col[j], (unsigned char)129, 16);
+            memset(pbi->mt_uleft_col[j], (unsigned char)129, 8);
+            memset(pbi->mt_vleft_col[j], (unsigned char)129, 8);
+        }
+
+        /* Initialize the loop filter for this frame. */
+        vp8_loop_filter_frame_init(pc, &pbi->mb, filter_level);
+    }
+    else
+        vp8_setup_intra_recon_top_line(yv12_fb_new);
+
+    setup_decoding_thread_data(pbi, xd, pbi->mb_row_di, pbi->decoding_thread_count);
+
+    for (i = 0; i < pbi->decoding_thread_count; i++)
+        sem_post(&pbi->h_event_start_decoding[i]);
+
+    mt_decode_mb_rows(pbi, xd, 0);
+
+    sem_wait(&pbi->h_event_end_decoding);   /* add back for each frame */
+}
diff --git a/media/libvpx/vp8/decoder/treereader.h b/media/libvpx/vp8/decoder/treereader.h
new file mode 100644
index 000000000..35ee69600
--- /dev/null
+++ b/media/libvpx/vp8/decoder/treereader.h
@@ -0,0 +1,48 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_DECODER_TREEREADER_H_
+#define VP8_DECODER_TREEREADER_H_
+
+#include "vp8/common/treecoder.h"
+#include "dboolhuff.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef BOOL_DECODER vp8_reader;
+
+#define vp8_read vp8dx_decode_bool
+#define vp8_read_literal vp8_decode_value
+#define vp8_read_bit(R) vp8_read(R, vp8_prob_half)
+
+
+/* Intent of tree data structure is to make decoding trivial. */
+
+static int vp8_treed_read(
+    vp8_reader *const r,        /* !!! must return a 0 or 1 !!! */
+    vp8_tree t,
+    const vp8_prob *const p
+)
+{
+    register vp8_tree_index i = 0;
+
+    while ((i = t[ i + vp8_read(r, p[i>>1])]) > 0) ;
+
+    return -i;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_DECODER_TREEREADER_H_
diff --git a/media/libvpx/vp8/encoder/arm/armv6/vp8_short_fdct4x4_armv6.asm b/media/libvpx/vp8/encoder/arm/armv6/vp8_short_fdct4x4_armv6.asm
new file mode 100644
index 000000000..8034c1db9
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/armv6/vp8_short_fdct4x4_armv6.asm
@@ -0,0 +1,262 @@
+;
+;  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+    EXPORT |vp8_short_fdct4x4_armv6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA    |.text|, CODE, READONLY
+; void vp8_short_fdct4x4_c(short *input, short *output, int pitch)
+|vp8_short_fdct4x4_armv6| PROC
+
+    stmfd       sp!, {r4 - r12, lr}
+
+    ; PART 1
+
+    ; coeffs 0-3
+    ldrd        r4, r5, [r0]        ; [i1 | i0] [i3 | i2]
+
+    ldr         r10, c7500
+    ldr         r11, c14500
+    ldr         r12, c0x22a453a0    ; [2217*4 | 5352*4]
+    ldr         lr, c0x00080008
+    ror         r5, r5, #16         ; [i2 | i3]
+
+    qadd16      r6, r4, r5          ; [i1+i2 | i0+i3] = [b1 | a1] without shift
+    qsub16      r7, r4, r5          ; [i1-i2 | i0-i3] = [c1 | d1] without shift
+
+    add         r0, r0, r2          ; update input pointer
+
+    qadd16      r7, r7, r7          ; 2*[c1|d1] --> we can use smlad and smlsd
+                                    ; with 2217*4 and 5352*4 without losing the
+                                    ; sign bit (overflow)
+
+    smuad       r4, r6, lr          ; o0 = (i1+i2)*8 + (i0+i3)*8
+    smusd       r5, r6, lr          ; o2 = (i1+i2)*8 - (i0+i3)*8
+
+    smlad       r6, r7, r12, r11    ; o1 = (c1 * 2217 + d1 * 5352 +  14500)
+    smlsdx      r7, r7, r12, r10    ; o3 = (d1 * 2217 - c1 * 5352 +   7500)
+
+    ldrd        r8, r9, [r0]        ; [i5 | i4] [i7 | i6]
+
+    pkhbt       r3, r4, r6, lsl #4  ; [o1 | o0], keep in register for PART 2
+    pkhbt       r6, r5, r7, lsl #4  ; [o3 | o2]
+
+    str         r6, [r1, #4]
+
+    ; coeffs 4-7
+    ror         r9, r9, #16         ; [i6 | i7]
+
+    qadd16      r6, r8, r9          ; [i5+i6 | i4+i7] = [b1 | a1] without shift
+    qsub16      r7, r8, r9          ; [i5-i6 | i4-i7] = [c1 | d1] without shift
+
+    add         r0, r0, r2          ; update input pointer
+
+    qadd16      r7, r7, r7          ; 2x[c1|d1] --> we can use smlad and smlsd
+                                    ; with 2217*4 and 5352*4 without losing the
+                                    ; sign bit (overflow)
+
+    smuad       r9, r6, lr          ; o4 = (i5+i6)*8 + (i4+i7)*8
+    smusd       r8, r6, lr          ; o6 = (i5+i6)*8 - (i4+i7)*8
+
+    smlad       r6, r7, r12, r11    ; o5 = (c1 * 2217 + d1 * 5352 +  14500)
+    smlsdx      r7, r7, r12, r10    ; o7 = (d1 * 2217 - c1 * 5352 +   7500)
+
+    ldrd        r4, r5, [r0]        ; [i9 | i8] [i11 | i10]
+
+    pkhbt       r9, r9, r6, lsl #4  ; [o5 | o4], keep in register for PART 2
+    pkhbt       r6, r8, r7, lsl #4  ; [o7 | o6]
+
+    str         r6, [r1, #12]
+
+    ; coeffs 8-11
+    ror         r5, r5, #16         ; [i10 | i11]
+
+    qadd16      r6, r4, r5          ; [i9+i10 | i8+i11]=[b1 | a1] without shift
+    qsub16      r7, r4, r5          ; [i9-i10 | i8-i11]=[c1 | d1] without shift
+
+    add         r0, r0, r2          ; update input pointer
+
+    qadd16      r7, r7, r7          ; 2x[c1|d1] --> we can use smlad and smlsd
+                                    ; with 2217*4 and 5352*4 without losing the
+                                    ; sign bit (overflow)
+
+    smuad       r2, r6, lr          ; o8 = (i9+i10)*8 + (i8+i11)*8
+    smusd       r8, r6, lr          ; o10 = (i9+i10)*8 - (i8+i11)*8
+
+    smlad       r6, r7, r12, r11    ; o9 = (c1 * 2217 + d1 * 5352 +  14500)
+    smlsdx      r7, r7, r12, r10    ; o11 = (d1 * 2217 - c1 * 5352 +   7500)
+
+    ldrd        r4, r5, [r0]        ; [i13 | i12] [i15 | i14]
+
+    pkhbt       r2, r2, r6, lsl #4  ; [o9 | o8], keep in register for PART 2
+    pkhbt       r6, r8, r7, lsl #4  ; [o11 | o10]
+
+    str         r6, [r1, #20]
+
+    ; coeffs 12-15
+    ror         r5, r5, #16         ; [i14 | i15]
+
+    qadd16      r6, r4, r5          ; [i13+i14 | i12+i15]=[b1|a1] without shift
+    qsub16      r7, r4, r5          ; [i13-i14 | i12-i15]=[c1|d1] without shift
+
+    qadd16      r7, r7, r7          ; 2x[c1|d1] --> we can use smlad and smlsd
+                                    ; with 2217*4 and 5352*4 without losing the
+                                    ; sign bit (overflow)
+
+    smuad       r4, r6, lr          ; o12 = (i13+i14)*8 + (i12+i15)*8
+    smusd       r5, r6, lr          ; o14 = (i13+i14)*8 - (i12+i15)*8
+
+    smlad       r6, r7, r12, r11    ; o13 = (c1 * 2217 + d1 * 5352 +  14500)
+    smlsdx      r7, r7, r12, r10    ; o15 = (d1 * 2217 - c1 * 5352 +   7500)
+
+    pkhbt       r0, r4, r6, lsl #4  ; [o13 | o12], keep in register for PART 2
+    pkhbt       r6, r5, r7, lsl #4  ; [o15 | o14]
+
+    str         r6, [r1, #28]
+
+
+    ; PART 2 -------------------------------------------------
+    ldr         r11, c12000
+    ldr         r10, c51000
+    ldr         lr, c0x00070007
+
+    qadd16      r4, r3, r0          ; a1 = [i1+i13 | i0+i12]
+    qadd16      r5, r9, r2          ; b1 = [i5+i9  |  i4+i8]
+    qsub16      r6, r9, r2          ; c1 = [i5-i9  |  i4-i8]
+    qsub16      r7, r3, r0          ; d1 = [i1-i13 | i0-i12]
+
+    qadd16      r4, r4, lr          ; a1 + 7
+
+    add         r0, r11, #0x10000   ; add (d!=0)
+
+    qadd16      r2, r4, r5          ; a1 + b1 + 7
+    qsub16      r3, r4, r5          ; a1 - b1 + 7
+
+    ldr         r12, c0x08a914e8    ; [2217 | 5352]
+
+    lsl         r8, r2, #16         ; prepare bottom halfword for scaling
+    asr         r2, r2, #4          ; scale top halfword
+    lsl         r9, r3, #16         ; prepare bottom halfword for scaling
+    asr         r3, r3, #4          ; scale top halfword
+    pkhtb       r4, r2, r8, asr #20 ; pack and scale bottom halfword
+    pkhtb       r5, r3, r9, asr #20 ; pack and scale bottom halfword
+
+    smulbt      r2, r6, r12         ; [ ------ | c1*2217]
+    str         r4, [r1, #0]        ; [     o1 |      o0]
+    smultt      r3, r6, r12         ; [c1*2217 | ------ ]
+    str         r5, [r1, #16]       ; [     o9 |      o8]
+
+    smlabb      r8, r7, r12, r2     ; [ ------ | d1*5352]
+    smlatb      r9, r7, r12, r3     ; [d1*5352 | ------ ]
+
+    smulbb      r2, r6, r12         ; [ ------ | c1*5352]
+    smultb      r3, r6, r12         ; [c1*5352 | ------ ]
+
+    lsls        r6, r7, #16         ; d1 != 0 ?
+    addeq       r8, r8, r11         ; c1_b*2217+d1_b*5352+12000 + (d==0)
+    addne       r8, r8, r0          ; c1_b*2217+d1_b*5352+12000 + (d!=0)
+    asrs        r6, r7, #16
+    addeq       r9, r9, r11         ; c1_t*2217+d1_t*5352+12000 + (d==0)
+    addne       r9, r9, r0          ; c1_t*2217+d1_t*5352+12000 + (d!=0)
+
+    smlabt      r4, r7, r12, r10    ; [ ------ | d1*2217] + 51000
+    smlatt      r5, r7, r12, r10    ; [d1*2217 | ------ ] + 51000
+
+    pkhtb       r9, r9, r8, asr #16
+
+    sub         r4, r4, r2
+    sub         r5, r5, r3
+
+    ldr         r3, [r1, #4]        ; [i3 | i2]
+
+    pkhtb       r5, r5, r4, asr #16 ; [o13|o12]
+
+    str         r9, [r1, #8]        ; [o5 | 04]
+
+    ldr         r9, [r1, #12]       ; [i7 | i6]
+    ldr         r8, [r1, #28]       ; [i15|i14]
+    ldr         r2, [r1, #20]       ; [i11|i10]
+    str         r5, [r1, #24]       ; [o13|o12]
+
+    qadd16      r4, r3, r8          ; a1 = [i3+i15 | i2+i14]
+    qadd16      r5, r9, r2          ; b1 = [i7+i11 | i6+i10]
+
+    qadd16      r4, r4, lr          ; a1 + 7
+
+    qsub16      r6, r9, r2          ; c1 = [i7-i11 | i6-i10]
+    qadd16      r2, r4, r5          ; a1 + b1 + 7
+    qsub16      r7, r3, r8          ; d1 = [i3-i15 | i2-i14]
+    qsub16      r3, r4, r5          ; a1 - b1 + 7
+
+    lsl         r8, r2, #16         ; prepare bottom halfword for scaling
+    asr         r2, r2, #4          ; scale top halfword
+    lsl         r9, r3, #16         ; prepare bottom halfword for scaling
+    asr         r3, r3, #4          ; scale top halfword
+    pkhtb       r4, r2, r8, asr #20 ; pack and scale bottom halfword
+    pkhtb       r5, r3, r9, asr #20 ; pack and scale bottom halfword
+
+    smulbt      r2, r6, r12         ; [ ------ | c1*2217]
+    str         r4, [r1, #4]        ; [     o3 |      o2]
+    smultt      r3, r6, r12         ; [c1*2217 | ------ ]
+    str         r5, [r1, #20]       ; [    o11 |     o10]
+
+    smlabb      r8, r7, r12, r2     ; [ ------ | d1*5352]
+    smlatb      r9, r7, r12, r3     ; [d1*5352 | ------ ]
+
+    smulbb      r2, r6, r12         ; [ ------ | c1*5352]
+    smultb      r3, r6, r12         ; [c1*5352 | ------ ]
+
+    lsls        r6, r7, #16         ; d1 != 0 ?
+    addeq       r8, r8, r11         ; c1_b*2217+d1_b*5352+12000 + (d==0)
+    addne       r8, r8, r0          ; c1_b*2217+d1_b*5352+12000 + (d!=0)
+
+    asrs        r6, r7, #16
+    addeq       r9, r9, r11         ; c1_t*2217+d1_t*5352+12000 + (d==0)
+    addne       r9, r9, r0          ; c1_t*2217+d1_t*5352+12000 + (d!=0)
+
+    smlabt      r4, r7, r12, r10    ; [ ------ | d1*2217] + 51000
+    smlatt      r5, r7, r12, r10    ; [d1*2217 | ------ ] + 51000
+
+    pkhtb       r9, r9, r8, asr #16
+
+    sub         r4, r4, r2
+    sub         r5, r5, r3
+
+    str         r9, [r1, #12]       ; [o7 | o6]
+    pkhtb       r5, r5, r4, asr #16 ; [o15|o14]
+
+    str         r5, [r1, #28]       ; [o15|o14]
+
+    ldmfd       sp!, {r4 - r12, pc}
+
+    ENDP
+
+; Used constants
+c7500
+    DCD     7500
+c14500
+    DCD     14500
+c0x22a453a0
+    DCD     0x22a453a0
+c0x00080008
+    DCD     0x00080008
+c12000
+    DCD     12000
+c51000
+    DCD     51000
+c0x00070007
+    DCD     0x00070007
+c0x08a914e8
+    DCD     0x08a914e8
+
+    END
diff --git a/media/libvpx/vp8/encoder/arm/armv6/walsh_v6.asm b/media/libvpx/vp8/encoder/arm/armv6/walsh_v6.asm
new file mode 100644
index 000000000..5eaf3f25a
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/armv6/walsh_v6.asm
@@ -0,0 +1,212 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+    EXPORT |vp8_short_walsh4x4_armv6|
+
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA    |.text|, CODE, READONLY  ; name this block of code
+
+;short vp8_short_walsh4x4_armv6(short *input, short *output, int pitch)
+; r0    short *input,
+; r1    short *output,
+; r2    int pitch
+|vp8_short_walsh4x4_armv6| PROC
+
+    stmdb       sp!, {r4 - r11, lr}
+
+    ldrd        r4, r5, [r0], r2
+    ldr         lr, c00040004
+    ldrd        r6, r7, [r0], r2
+
+    ; 0-3
+    qadd16      r3, r4, r5          ; [d1|a1] [1+3   |   0+2]
+    qsub16      r4, r4, r5          ; [c1|b1] [1-3   |   0-2]
+
+    ldrd        r8, r9, [r0], r2
+    ; 4-7
+    qadd16      r5, r6, r7          ; [d1|a1] [5+7   |   4+6]
+    qsub16      r6, r6, r7          ; [c1|b1] [5-7   |   4-6]
+
+    ldrd        r10, r11, [r0]
+    ; 8-11
+    qadd16      r7, r8, r9          ; [d1|a1] [9+11  |  8+10]
+    qsub16      r8, r8, r9          ; [c1|b1] [9-11  |  8-10]
+
+    ; 12-15
+    qadd16      r9, r10, r11        ; [d1|a1] [13+15 | 12+14]
+    qsub16      r10, r10, r11       ; [c1|b1] [13-15 | 12-14]
+
+
+    lsls        r2, r3, #16
+    smuad       r11, r3, lr         ; A0 = a1<<2 + d1<<2
+    addne       r11, r11, #1        ; A0 += (a1!=0)
+
+    lsls        r2, r7, #16
+    smuad       r12, r7, lr         ; C0 = a1<<2 + d1<<2
+    addne       r12, r12, #1        ; C0 += (a1!=0)
+
+    add         r0, r11, r12        ; a1_0 = A0 + C0
+    sub         r11, r11, r12       ; b1_0 = A0 - C0
+
+    lsls        r2, r5, #16
+    smuad       r12, r5, lr         ; B0 = a1<<2 + d1<<2
+    addne       r12, r12, #1        ; B0 += (a1!=0)
+
+    lsls        r2, r9, #16
+    smuad       r2, r9, lr          ; D0 = a1<<2 + d1<<2
+    addne       r2, r2, #1          ; D0 += (a1!=0)
+
+    add         lr, r12, r2         ; d1_0 = B0 + D0
+    sub         r12, r12, r2        ; c1_0 = B0 - D0
+
+    ; op[0,4,8,12]
+    adds        r2, r0, lr          ; a2 = a1_0 + d1_0
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    subs        r0, r0, lr          ; d2 = a1_0 - d1_0
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1]            ; op[0]
+
+    addmi       r0, r0, #1          ; += a2 < 0
+    add         r0, r0, #3          ; += 3
+    ldr         lr, c00040004
+    mov         r0, r0, asr #3      ; >> 3
+    strh        r0, [r1, #24]       ; op[12]
+
+    adds        r2, r11, r12        ; b2 = b1_0 + c1_0
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    subs        r0, r11, r12        ; c2 = b1_0 - c1_0
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #8]        ; op[4]
+
+    addmi       r0, r0, #1          ; += a2 < 0
+    add         r0, r0, #3          ; += 3
+    smusd       r3, r3, lr          ; A3 = a1<<2 - d1<<2
+    smusd       r7, r7, lr          ; C3 = a1<<2 - d1<<2
+    mov         r0, r0, asr #3      ; >> 3
+    strh        r0, [r1, #16]       ; op[8]
+
+
+    ; op[3,7,11,15]
+    add         r0, r3, r7          ; a1_3 = A3 + C3
+    sub         r3, r3, r7          ; b1_3 = A3 - C3
+
+    smusd       r5, r5, lr          ; B3 = a1<<2 - d1<<2
+    smusd       r9, r9, lr          ; D3 = a1<<2 - d1<<2
+    add         r7, r5, r9          ; d1_3 = B3 + D3
+    sub         r5, r5, r9          ; c1_3 = B3 - D3
+
+    adds        r2, r0, r7          ; a2 = a1_3 + d1_3
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    adds        r9, r3, r5          ; b2 = b1_3 + c1_3
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #6]        ; op[3]
+
+    addmi       r9, r9, #1          ; += a2 < 0
+    add         r9, r9, #3          ; += 3
+    subs        r2, r3, r5          ; c2 = b1_3 - c1_3
+    mov         r9, r9, asr #3      ; >> 3
+    strh        r9, [r1, #14]       ; op[7]
+
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    subs        r9, r0, r7          ; d2 = a1_3 - d1_3
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #22]       ; op[11]
+
+    addmi       r9, r9, #1          ; += a2 < 0
+    add         r9, r9, #3          ; += 3
+    smuad       r3, r4, lr          ; A1 = b1<<2 + c1<<2
+    smuad       r5, r8, lr          ; C1 = b1<<2 + c1<<2
+    mov         r9, r9, asr #3      ; >> 3
+    strh        r9, [r1, #30]       ; op[15]
+
+    ; op[1,5,9,13]
+    add         r0, r3, r5          ; a1_1 = A1 + C1
+    sub         r3, r3, r5          ; b1_1 = A1 - C1
+
+    smuad       r7, r6, lr          ; B1 = b1<<2 + c1<<2
+    smuad       r9, r10, lr         ; D1 = b1<<2 + c1<<2
+    add         r5, r7, r9          ; d1_1 = B1 + D1
+    sub         r7, r7, r9          ; c1_1 = B1 - D1
+
+    adds        r2, r0, r5          ; a2 = a1_1 + d1_1
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    adds        r9, r3, r7          ; b2 = b1_1 + c1_1
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #2]        ; op[1]
+
+    addmi       r9, r9, #1          ; += a2 < 0
+    add         r9, r9, #3          ; += 3
+    subs        r2, r3, r7          ; c2 = b1_1 - c1_1
+    mov         r9, r9, asr #3      ; >> 3
+    strh        r9, [r1, #10]       ; op[5]
+
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    subs        r9, r0, r5          ; d2 = a1_1 - d1_1
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #18]       ; op[9]
+
+    addmi       r9, r9, #1          ; += a2 < 0
+    add         r9, r9, #3          ; += 3
+    smusd       r4, r4, lr          ; A2 = b1<<2 - c1<<2
+    smusd       r8, r8, lr          ; C2 = b1<<2 - c1<<2
+    mov         r9, r9, asr #3      ; >> 3
+    strh        r9, [r1, #26]       ; op[13]
+
+
+    ; op[2,6,10,14]
+    add         r11, r4, r8         ; a1_2 = A2 + C2
+    sub         r12, r4, r8         ; b1_2 = A2 - C2
+
+    smusd       r6, r6, lr          ; B2 = b1<<2 - c1<<2
+    smusd       r10, r10, lr        ; D2 = b1<<2 - c1<<2
+    add         r4, r6, r10         ; d1_2 = B2 + D2
+    sub         r8, r6, r10         ; c1_2 = B2 - D2
+
+    adds        r2, r11, r4         ; a2 = a1_2 + d1_2
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    adds        r9, r12, r8         ; b2 = b1_2 + c1_2
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #4]        ; op[2]
+
+    addmi       r9, r9, #1          ; += a2 < 0
+    add         r9, r9, #3          ; += 3
+    subs        r2, r12, r8         ; c2 = b1_2 - c1_2
+    mov         r9, r9, asr #3      ; >> 3
+    strh        r9, [r1, #12]       ; op[6]
+
+    addmi       r2, r2, #1          ; += a2 < 0
+    add         r2, r2, #3          ; += 3
+    subs        r9, r11, r4         ; d2 = a1_2 - d1_2
+    mov         r2, r2, asr #3      ; >> 3
+    strh        r2, [r1, #20]       ; op[10]
+
+    addmi       r9, r9, #1          ; += a2 < 0
+    add         r9, r9, #3          ; += 3
+    mov         r9, r9, asr #3      ; >> 3
+    strh        r9, [r1, #28]       ; op[14]
+
+
+    ldmia       sp!, {r4 - r11, pc}
+    ENDP        ; |vp8_short_walsh4x4_armv6|
+
+c00040004
+    DCD         0x00040004
+
+    END
diff --git a/media/libvpx/vp8/encoder/arm/dct_arm.c b/media/libvpx/vp8/encoder/arm/dct_arm.c
new file mode 100644
index 000000000..f71300d2c
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/dct_arm.c
@@ -0,0 +1,22 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+
+#if HAVE_MEDIA
+
+void vp8_short_fdct8x4_armv6(short *input, short *output, int pitch)
+{
+    vp8_short_fdct4x4_armv6(input,   output,    pitch);
+    vp8_short_fdct4x4_armv6(input + 4, output + 16, pitch);
+}
+
+#endif /* HAVE_MEDIA */
diff --git a/media/libvpx/vp8/encoder/arm/neon/denoising_neon.c b/media/libvpx/vp8/encoder/arm/neon/denoising_neon.c
new file mode 100644
index 000000000..08be76e43
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/neon/denoising_neon.c
@@ -0,0 +1,478 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+#include "vp8/encoder/denoising.h"
+#include "vpx_mem/vpx_mem.h"
+#include "./vp8_rtcd.h"
+
+/*
+ * The filter function was modified to reduce the computational complexity.
+ *
+ * Step 1:
+ *  Instead of applying tap coefficients for each pixel, we calculated the
+ *  pixel adjustments vs. pixel diff value ahead of time.
+ *     adjustment = filtered_value - current_raw
+ *                = (filter_coefficient * diff + 128) >> 8
+ *  where
+ *     filter_coefficient = (255 << 8) / (256 + ((abs_diff * 330) >> 3));
+ *     filter_coefficient += filter_coefficient /
+ *                           (3 + motion_magnitude_adjustment);
+ *     filter_coefficient is clamped to 0 ~ 255.
+ *
+ * Step 2:
+ *  The adjustment vs. diff curve becomes flat very quick when diff increases.
+ *  This allowed us to use only several levels to approximate the curve without
+ *  changing the filtering algorithm too much.
+ *  The adjustments were further corrected by checking the motion magnitude.
+ *  The levels used are:
+ *      diff          level       adjustment w/o       adjustment w/
+ *                               motion correction    motion correction
+ *      [-255, -16]     3              -6                   -7
+ *      [-15, -8]       2              -4                   -5
+ *      [-7, -4]        1              -3                   -4
+ *      [-3, 3]         0              diff                 diff
+ *      [4, 7]          1               3                    4
+ *      [8, 15]         2               4                    5
+ *      [16, 255]       3               6                    7
+ */
+
+int vp8_denoiser_filter_neon(unsigned char *mc_running_avg_y,
+                             int mc_running_avg_y_stride,
+                             unsigned char *running_avg_y,
+                             int running_avg_y_stride,
+                             unsigned char *sig, int sig_stride,
+                             unsigned int motion_magnitude,
+                             int increase_denoising) {
+    /* If motion_magnitude is small, making the denoiser more aggressive by
+     * increasing the adjustment for each level, level1 adjustment is
+     * increased, the deltas stay the same.
+     */
+    int shift_inc  = (increase_denoising &&
+        motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ? 1 : 0;
+    const uint8x16_t v_level1_adjustment = vmovq_n_u8(
+        (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ? 4 + shift_inc : 3);
+    const uint8x16_t v_delta_level_1_and_2 = vdupq_n_u8(1);
+    const uint8x16_t v_delta_level_2_and_3 = vdupq_n_u8(2);
+    const uint8x16_t v_level1_threshold = vmovq_n_u8(4 + shift_inc);
+    const uint8x16_t v_level2_threshold = vdupq_n_u8(8);
+    const uint8x16_t v_level3_threshold = vdupq_n_u8(16);
+    int64x2_t v_sum_diff_total = vdupq_n_s64(0);
+
+    /* Go over lines. */
+    int r;
+    for (r = 0; r < 16; ++r) {
+        /* Load inputs. */
+        const uint8x16_t v_sig = vld1q_u8(sig);
+        const uint8x16_t v_mc_running_avg_y = vld1q_u8(mc_running_avg_y);
+
+        /* Calculate absolute difference and sign masks. */
+        const uint8x16_t v_abs_diff      = vabdq_u8(v_sig, v_mc_running_avg_y);
+        const uint8x16_t v_diff_pos_mask = vcltq_u8(v_sig, v_mc_running_avg_y);
+        const uint8x16_t v_diff_neg_mask = vcgtq_u8(v_sig, v_mc_running_avg_y);
+
+        /* Figure out which level that put us in. */
+        const uint8x16_t v_level1_mask = vcleq_u8(v_level1_threshold,
+                                                  v_abs_diff);
+        const uint8x16_t v_level2_mask = vcleq_u8(v_level2_threshold,
+                                                  v_abs_diff);
+        const uint8x16_t v_level3_mask = vcleq_u8(v_level3_threshold,
+                                                  v_abs_diff);
+
+        /* Calculate absolute adjustments for level 1, 2 and 3. */
+        const uint8x16_t v_level2_adjustment = vandq_u8(v_level2_mask,
+                                                        v_delta_level_1_and_2);
+        const uint8x16_t v_level3_adjustment = vandq_u8(v_level3_mask,
+                                                        v_delta_level_2_and_3);
+        const uint8x16_t v_level1and2_adjustment = vaddq_u8(v_level1_adjustment,
+            v_level2_adjustment);
+        const uint8x16_t v_level1and2and3_adjustment = vaddq_u8(
+            v_level1and2_adjustment, v_level3_adjustment);
+
+        /* Figure adjustment absolute value by selecting between the absolute
+         * difference if in level0 or the value for level 1, 2 and 3.
+         */
+        const uint8x16_t v_abs_adjustment = vbslq_u8(v_level1_mask,
+            v_level1and2and3_adjustment, v_abs_diff);
+
+        /* Calculate positive and negative adjustments. Apply them to the signal
+         * and accumulate them. Adjustments are less than eight and the maximum
+         * sum of them (7 * 16) can fit in a signed char.
+         */
+        const uint8x16_t v_pos_adjustment = vandq_u8(v_diff_pos_mask,
+                                                     v_abs_adjustment);
+        const uint8x16_t v_neg_adjustment = vandq_u8(v_diff_neg_mask,
+                                                     v_abs_adjustment);
+
+        uint8x16_t v_running_avg_y = vqaddq_u8(v_sig, v_pos_adjustment);
+        v_running_avg_y = vqsubq_u8(v_running_avg_y, v_neg_adjustment);
+
+        /* Store results. */
+        vst1q_u8(running_avg_y, v_running_avg_y);
+
+        /* Sum all the accumulators to have the sum of all pixel differences
+         * for this macroblock.
+         */
+        {
+            const int8x16_t v_sum_diff =
+                vqsubq_s8(vreinterpretq_s8_u8(v_pos_adjustment),
+                          vreinterpretq_s8_u8(v_neg_adjustment));
+
+            const int16x8_t fe_dc_ba_98_76_54_32_10 = vpaddlq_s8(v_sum_diff);
+
+            const int32x4_t fedc_ba98_7654_3210 =
+                vpaddlq_s16(fe_dc_ba_98_76_54_32_10);
+
+            const int64x2_t fedcba98_76543210 =
+                vpaddlq_s32(fedc_ba98_7654_3210);
+
+            v_sum_diff_total = vqaddq_s64(v_sum_diff_total, fedcba98_76543210);
+        }
+
+        /* Update pointers for next iteration. */
+        sig += sig_stride;
+        mc_running_avg_y += mc_running_avg_y_stride;
+        running_avg_y += running_avg_y_stride;
+    }
+
+    /* Too much adjustments => copy block. */
+    {
+        int64x1_t x = vqadd_s64(vget_high_s64(v_sum_diff_total),
+                                      vget_low_s64(v_sum_diff_total));
+        int sum_diff = vget_lane_s32(vabs_s32(vreinterpret_s32_s64(x)), 0);
+        int sum_diff_thresh = SUM_DIFF_THRESHOLD;
+
+        if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH;
+        if (sum_diff > sum_diff_thresh) {
+          // Before returning to copy the block (i.e., apply no denoising),
+          // checK if we can still apply some (weaker) temporal filtering to
+          // this block, that would otherwise not be denoised at all. Simplest
+          // is to apply an additional adjustment to running_avg_y to bring it
+          // closer to sig. The adjustment is capped by a maximum delta, and
+          // chosen such that in most cases the resulting sum_diff will be
+          // within the accceptable range given by sum_diff_thresh.
+
+          // The delta is set by the excess of absolute pixel diff over the
+          // threshold.
+          int delta = ((sum_diff - sum_diff_thresh) >> 8) + 1;
+          // Only apply the adjustment for max delta up to 3.
+          if (delta < 4) {
+            const uint8x16_t k_delta = vmovq_n_u8(delta);
+            sig -= sig_stride * 16;
+            mc_running_avg_y -= mc_running_avg_y_stride * 16;
+            running_avg_y -= running_avg_y_stride * 16;
+            for (r = 0; r < 16; ++r) {
+              uint8x16_t v_running_avg_y = vld1q_u8(running_avg_y);
+              const uint8x16_t v_sig = vld1q_u8(sig);
+              const uint8x16_t v_mc_running_avg_y = vld1q_u8(mc_running_avg_y);
+
+              /* Calculate absolute difference and sign masks. */
+              const uint8x16_t v_abs_diff      = vabdq_u8(v_sig,
+                                                          v_mc_running_avg_y);
+              const uint8x16_t v_diff_pos_mask = vcltq_u8(v_sig,
+                                                          v_mc_running_avg_y);
+              const uint8x16_t v_diff_neg_mask = vcgtq_u8(v_sig,
+                                                          v_mc_running_avg_y);
+              // Clamp absolute difference to delta to get the adjustment.
+              const uint8x16_t v_abs_adjustment =
+                  vminq_u8(v_abs_diff, (k_delta));
+
+              const uint8x16_t v_pos_adjustment = vandq_u8(v_diff_pos_mask,
+                                                           v_abs_adjustment);
+              const uint8x16_t v_neg_adjustment = vandq_u8(v_diff_neg_mask,
+                                                           v_abs_adjustment);
+
+              v_running_avg_y = vqsubq_u8(v_running_avg_y, v_pos_adjustment);
+              v_running_avg_y = vqaddq_u8(v_running_avg_y, v_neg_adjustment);
+
+              /* Store results. */
+              vst1q_u8(running_avg_y, v_running_avg_y);
+
+              {
+                  const int8x16_t v_sum_diff =
+                      vqsubq_s8(vreinterpretq_s8_u8(v_neg_adjustment),
+                                vreinterpretq_s8_u8(v_pos_adjustment));
+
+                  const int16x8_t fe_dc_ba_98_76_54_32_10 =
+                      vpaddlq_s8(v_sum_diff);
+                  const int32x4_t fedc_ba98_7654_3210 =
+                      vpaddlq_s16(fe_dc_ba_98_76_54_32_10);
+                  const int64x2_t fedcba98_76543210 =
+                      vpaddlq_s32(fedc_ba98_7654_3210);
+
+                  v_sum_diff_total = vqaddq_s64(v_sum_diff_total,
+                                                fedcba98_76543210);
+              }
+              /* Update pointers for next iteration. */
+              sig += sig_stride;
+              mc_running_avg_y += mc_running_avg_y_stride;
+              running_avg_y += running_avg_y_stride;
+            }
+            {
+              // Update the sum of all pixel differences of this MB.
+              x = vqadd_s64(vget_high_s64(v_sum_diff_total),
+                            vget_low_s64(v_sum_diff_total));
+              sum_diff = vget_lane_s32(vabs_s32(vreinterpret_s32_s64(x)), 0);
+
+              if (sum_diff > sum_diff_thresh) {
+                return COPY_BLOCK;
+              }
+            }
+          } else {
+            return COPY_BLOCK;
+          }
+        }
+    }
+
+    /* Tell above level that block was filtered. */
+    running_avg_y -= running_avg_y_stride * 16;
+    sig -= sig_stride * 16;
+
+    vp8_copy_mem16x16(running_avg_y, running_avg_y_stride, sig, sig_stride);
+
+    return FILTER_BLOCK;
+}
+
+int vp8_denoiser_filter_uv_neon(unsigned char *mc_running_avg,
+                             int mc_running_avg_stride,
+                             unsigned char *running_avg,
+                             int running_avg_stride,
+                             unsigned char *sig, int sig_stride,
+                             unsigned int motion_magnitude,
+                             int increase_denoising) {
+    /* If motion_magnitude is small, making the denoiser more aggressive by
+     * increasing the adjustment for each level, level1 adjustment is
+     * increased, the deltas stay the same.
+     */
+    int shift_inc  = (increase_denoising &&
+        motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ? 1 : 0;
+    const uint8x16_t v_level1_adjustment = vmovq_n_u8(
+        (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ? 4 + shift_inc : 3);
+
+    const uint8x16_t v_delta_level_1_and_2 = vdupq_n_u8(1);
+    const uint8x16_t v_delta_level_2_and_3 = vdupq_n_u8(2);
+    const uint8x16_t v_level1_threshold = vmovq_n_u8(4 + shift_inc);
+    const uint8x16_t v_level2_threshold = vdupq_n_u8(8);
+    const uint8x16_t v_level3_threshold = vdupq_n_u8(16);
+    int64x2_t v_sum_diff_total = vdupq_n_s64(0);
+    int r;
+
+    {
+      uint16x4_t v_sum_block = vdup_n_u16(0);
+
+      // Avoid denoising color signal if its close to average level.
+      for (r = 0; r < 8; ++r) {
+        const uint8x8_t v_sig = vld1_u8(sig);
+        const uint16x4_t _76_54_32_10 = vpaddl_u8(v_sig);
+        v_sum_block = vqadd_u16(v_sum_block, _76_54_32_10);
+        sig += sig_stride;
+      }
+      sig -= sig_stride * 8;
+      {
+        const uint32x2_t _7654_3210 = vpaddl_u16(v_sum_block);
+        const uint64x1_t _76543210 = vpaddl_u32(_7654_3210);
+        const int sum_block =
+            vget_lane_s32(vreinterpret_s32_u64(_76543210), 0);
+        if (abs(sum_block - (128 * 8 * 8)) < SUM_DIFF_FROM_AVG_THRESH_UV) {
+          return COPY_BLOCK;
+        }
+      }
+    }
+
+    /* Go over lines. */
+    for (r = 0; r < 4; ++r) {
+        /* Load inputs. */
+        const uint8x8_t v_sig_lo = vld1_u8(sig);
+        const uint8x8_t v_sig_hi = vld1_u8(&sig[sig_stride]);
+        const uint8x16_t v_sig = vcombine_u8(v_sig_lo, v_sig_hi);
+        const uint8x8_t v_mc_running_avg_lo = vld1_u8(mc_running_avg);
+        const uint8x8_t v_mc_running_avg_hi =
+            vld1_u8(&mc_running_avg[mc_running_avg_stride]);
+        const uint8x16_t v_mc_running_avg =
+            vcombine_u8(v_mc_running_avg_lo, v_mc_running_avg_hi);
+        /* Calculate absolute difference and sign masks. */
+        const uint8x16_t v_abs_diff      = vabdq_u8(v_sig, v_mc_running_avg);
+        const uint8x16_t v_diff_pos_mask = vcltq_u8(v_sig, v_mc_running_avg);
+        const uint8x16_t v_diff_neg_mask = vcgtq_u8(v_sig, v_mc_running_avg);
+
+        /* Figure out which level that put us in. */
+        const uint8x16_t v_level1_mask = vcleq_u8(v_level1_threshold,
+                                                  v_abs_diff);
+        const uint8x16_t v_level2_mask = vcleq_u8(v_level2_threshold,
+                                                  v_abs_diff);
+        const uint8x16_t v_level3_mask = vcleq_u8(v_level3_threshold,
+                                                  v_abs_diff);
+
+        /* Calculate absolute adjustments for level 1, 2 and 3. */
+        const uint8x16_t v_level2_adjustment = vandq_u8(v_level2_mask,
+                                                        v_delta_level_1_and_2);
+        const uint8x16_t v_level3_adjustment = vandq_u8(v_level3_mask,
+                                                        v_delta_level_2_and_3);
+        const uint8x16_t v_level1and2_adjustment = vaddq_u8(v_level1_adjustment,
+            v_level2_adjustment);
+        const uint8x16_t v_level1and2and3_adjustment = vaddq_u8(
+            v_level1and2_adjustment, v_level3_adjustment);
+
+        /* Figure adjustment absolute value by selecting between the absolute
+         * difference if in level0 or the value for level 1, 2 and 3.
+         */
+        const uint8x16_t v_abs_adjustment = vbslq_u8(v_level1_mask,
+            v_level1and2and3_adjustment, v_abs_diff);
+
+        /* Calculate positive and negative adjustments. Apply them to the signal
+         * and accumulate them. Adjustments are less than eight and the maximum
+         * sum of them (7 * 16) can fit in a signed char.
+         */
+        const uint8x16_t v_pos_adjustment = vandq_u8(v_diff_pos_mask,
+                                                     v_abs_adjustment);
+        const uint8x16_t v_neg_adjustment = vandq_u8(v_diff_neg_mask,
+                                                     v_abs_adjustment);
+
+        uint8x16_t v_running_avg = vqaddq_u8(v_sig, v_pos_adjustment);
+        v_running_avg = vqsubq_u8(v_running_avg, v_neg_adjustment);
+
+        /* Store results. */
+        vst1_u8(running_avg, vget_low_u8(v_running_avg));
+        vst1_u8(&running_avg[running_avg_stride], vget_high_u8(v_running_avg));
+
+        /* Sum all the accumulators to have the sum of all pixel differences
+         * for this macroblock.
+         */
+        {
+            const int8x16_t v_sum_diff =
+                vqsubq_s8(vreinterpretq_s8_u8(v_pos_adjustment),
+                          vreinterpretq_s8_u8(v_neg_adjustment));
+
+            const int16x8_t fe_dc_ba_98_76_54_32_10 = vpaddlq_s8(v_sum_diff);
+
+            const int32x4_t fedc_ba98_7654_3210 =
+                vpaddlq_s16(fe_dc_ba_98_76_54_32_10);
+
+            const int64x2_t fedcba98_76543210 =
+                vpaddlq_s32(fedc_ba98_7654_3210);
+
+            v_sum_diff_total = vqaddq_s64(v_sum_diff_total, fedcba98_76543210);
+        }
+
+        /* Update pointers for next iteration. */
+        sig += sig_stride * 2;
+        mc_running_avg += mc_running_avg_stride * 2;
+        running_avg += running_avg_stride * 2;
+    }
+
+
+    /* Too much adjustments => copy block. */
+    {
+        int64x1_t x = vqadd_s64(vget_high_s64(v_sum_diff_total),
+                                      vget_low_s64(v_sum_diff_total));
+        int sum_diff = vget_lane_s32(vabs_s32(vreinterpret_s32_s64(x)), 0);
+        int sum_diff_thresh = SUM_DIFF_THRESHOLD_UV;
+        if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH_UV;
+        if (sum_diff > sum_diff_thresh) {
+          // Before returning to copy the block (i.e., apply no denoising),
+          // checK if we can still apply some (weaker) temporal filtering to
+          // this block, that would otherwise not be denoised at all. Simplest
+          // is to apply an additional adjustment to running_avg_y to bring it
+          // closer to sig. The adjustment is capped by a maximum delta, and
+          // chosen such that in most cases the resulting sum_diff will be
+          // within the accceptable range given by sum_diff_thresh.
+
+          // The delta is set by the excess of absolute pixel diff over the
+          // threshold.
+          int delta = ((sum_diff - sum_diff_thresh) >> 8) + 1;
+          // Only apply the adjustment for max delta up to 3.
+          if (delta < 4) {
+            const uint8x16_t k_delta = vmovq_n_u8(delta);
+            sig -= sig_stride * 8;
+            mc_running_avg -= mc_running_avg_stride * 8;
+            running_avg -= running_avg_stride * 8;
+            for (r = 0; r < 4; ++r) {
+              const uint8x8_t v_sig_lo = vld1_u8(sig);
+              const uint8x8_t v_sig_hi = vld1_u8(&sig[sig_stride]);
+              const uint8x16_t v_sig = vcombine_u8(v_sig_lo, v_sig_hi);
+              const uint8x8_t v_mc_running_avg_lo = vld1_u8(mc_running_avg);
+              const uint8x8_t v_mc_running_avg_hi =
+                  vld1_u8(&mc_running_avg[mc_running_avg_stride]);
+              const uint8x16_t v_mc_running_avg =
+                  vcombine_u8(v_mc_running_avg_lo, v_mc_running_avg_hi);
+              /* Calculate absolute difference and sign masks. */
+              const uint8x16_t v_abs_diff      = vabdq_u8(v_sig,
+                                                          v_mc_running_avg);
+              const uint8x16_t v_diff_pos_mask = vcltq_u8(v_sig,
+                                                          v_mc_running_avg);
+              const uint8x16_t v_diff_neg_mask = vcgtq_u8(v_sig,
+                                                          v_mc_running_avg);
+              // Clamp absolute difference to delta to get the adjustment.
+              const uint8x16_t v_abs_adjustment =
+                  vminq_u8(v_abs_diff, (k_delta));
+
+              const uint8x16_t v_pos_adjustment = vandq_u8(v_diff_pos_mask,
+                                                           v_abs_adjustment);
+              const uint8x16_t v_neg_adjustment = vandq_u8(v_diff_neg_mask,
+                                                           v_abs_adjustment);
+              const uint8x8_t v_running_avg_lo = vld1_u8(running_avg);
+              const uint8x8_t v_running_avg_hi =
+                  vld1_u8(&running_avg[running_avg_stride]);
+              uint8x16_t v_running_avg =
+                  vcombine_u8(v_running_avg_lo, v_running_avg_hi);
+
+              v_running_avg = vqsubq_u8(v_running_avg, v_pos_adjustment);
+              v_running_avg = vqaddq_u8(v_running_avg, v_neg_adjustment);
+
+              /* Store results. */
+              vst1_u8(running_avg, vget_low_u8(v_running_avg));
+              vst1_u8(&running_avg[running_avg_stride],
+                      vget_high_u8(v_running_avg));
+
+              {
+                  const int8x16_t v_sum_diff =
+                      vqsubq_s8(vreinterpretq_s8_u8(v_neg_adjustment),
+                                vreinterpretq_s8_u8(v_pos_adjustment));
+
+                  const int16x8_t fe_dc_ba_98_76_54_32_10 =
+                      vpaddlq_s8(v_sum_diff);
+                  const int32x4_t fedc_ba98_7654_3210 =
+                      vpaddlq_s16(fe_dc_ba_98_76_54_32_10);
+                  const int64x2_t fedcba98_76543210 =
+                      vpaddlq_s32(fedc_ba98_7654_3210);
+
+                  v_sum_diff_total = vqaddq_s64(v_sum_diff_total,
+                                                fedcba98_76543210);
+              }
+              /* Update pointers for next iteration. */
+              sig += sig_stride * 2;
+              mc_running_avg += mc_running_avg_stride * 2;
+              running_avg += running_avg_stride * 2;
+            }
+            {
+              // Update the sum of all pixel differences of this MB.
+              x = vqadd_s64(vget_high_s64(v_sum_diff_total),
+                            vget_low_s64(v_sum_diff_total));
+              sum_diff = vget_lane_s32(vabs_s32(vreinterpret_s32_s64(x)), 0);
+
+              if (sum_diff > sum_diff_thresh) {
+                return COPY_BLOCK;
+              }
+            }
+          } else {
+            return COPY_BLOCK;
+          }
+        }
+    }
+
+    /* Tell above level that block was filtered. */
+    running_avg -= running_avg_stride * 8;
+    sig -= sig_stride * 8;
+
+    vp8_copy_mem8x8(running_avg, running_avg_stride, sig, sig_stride);
+
+    return FILTER_BLOCK;
+}
diff --git a/media/libvpx/vp8/encoder/arm/neon/fastquantizeb_neon.c b/media/libvpx/vp8/encoder/arm/neon/fastquantizeb_neon.c
new file mode 100644
index 000000000..e5824bfb2
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/neon/fastquantizeb_neon.c
@@ -0,0 +1,89 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "vp8/encoder/block.h"
+
+static const uint16_t inv_zig_zag[16] = {
+    1,  2,  6,   7,
+    3,  5,  8,  13,
+    4,  9,  12, 14,
+    10, 11, 15, 16
+};
+
+void vp8_fast_quantize_b_neon(BLOCK *b, BLOCKD *d) {
+    const int16x8_t one_q = vdupq_n_s16(-1),
+                    z0 = vld1q_s16(b->coeff),
+                    z1 = vld1q_s16(b->coeff + 8),
+                    round0 = vld1q_s16(b->round),
+                    round1 = vld1q_s16(b->round + 8),
+                    quant0 = vld1q_s16(b->quant_fast),
+                    quant1 = vld1q_s16(b->quant_fast + 8),
+                    dequant0 = vld1q_s16(d->dequant),
+                    dequant1 = vld1q_s16(d->dequant + 8);
+    const uint16x8_t zig_zag0 = vld1q_u16(inv_zig_zag),
+                     zig_zag1 = vld1q_u16(inv_zig_zag + 8);
+    int16x8_t x0, x1, sz0, sz1, y0, y1;
+    uint16x8_t eob0, eob1;
+    uint16x4_t eob_d16;
+    uint32x2_t eob_d32;
+    uint32x4_t eob_q32;
+
+    /* sign of z: z >> 15 */
+    sz0 = vshrq_n_s16(z0, 15);
+    sz1 = vshrq_n_s16(z1, 15);
+
+    /* x = abs(z) */
+    x0 = vabsq_s16(z0);
+    x1 = vabsq_s16(z1);
+
+    /* x += round */
+    x0 = vaddq_s16(x0, round0);
+    x1 = vaddq_s16(x1, round1);
+
+    /* y = 2 * (x * quant) >> 16 */
+    y0 = vqdmulhq_s16(x0, quant0);
+    y1 = vqdmulhq_s16(x1, quant1);
+
+    /* Compensate for doubling in vqdmulhq */
+    y0 = vshrq_n_s16(y0, 1);
+    y1 = vshrq_n_s16(y1, 1);
+
+    /* Restore sign bit */
+    y0 = veorq_s16(y0, sz0);
+    y1 = veorq_s16(y1, sz1);
+    x0 = vsubq_s16(y0, sz0);
+    x1 = vsubq_s16(y1, sz1);
+
+    /* find non-zero elements */
+    eob0 = vtstq_s16(x0, one_q);
+    eob1 = vtstq_s16(x1, one_q);
+
+    /* mask zig zag */
+    eob0 = vandq_u16(eob0, zig_zag0);
+    eob1 = vandq_u16(eob1, zig_zag1);
+
+    /* select the largest value */
+    eob0 = vmaxq_u16(eob0, eob1);
+    eob_d16 = vmax_u16(vget_low_u16(eob0), vget_high_u16(eob0));
+    eob_q32 = vmovl_u16(eob_d16);
+    eob_d32 = vmax_u32(vget_low_u32(eob_q32), vget_high_u32(eob_q32));
+    eob_d32 = vpmax_u32(eob_d32, eob_d32);
+
+    /* qcoeff = x */
+    vst1q_s16(d->qcoeff, x0);
+    vst1q_s16(d->qcoeff + 8, x1);
+
+    /* dqcoeff = x * dequant */
+    vst1q_s16(d->dqcoeff, vmulq_s16(dequant0, x0));
+    vst1q_s16(d->dqcoeff + 8, vmulq_s16(dequant1, x1));
+
+    vst1_lane_s8((int8_t *)d->eob, vreinterpret_s8_u32(eob_d32), 0);
+}
diff --git a/media/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c b/media/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c
new file mode 100644
index 000000000..391e5f990
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/neon/shortfdct_neon.c
@@ -0,0 +1,269 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+
+void vp8_short_fdct4x4_neon(
+        int16_t *input,
+        int16_t *output,
+        int pitch) {
+    int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
+    int16x4_t d16s16, d17s16, d26s16, dEmptys16;
+    uint16x4_t d4u16;
+    int16x8_t q0s16, q1s16;
+    int32x4_t q9s32, q10s32, q11s32, q12s32;
+    int16x4x2_t v2tmp0, v2tmp1;
+    int32x2x2_t v2tmp2, v2tmp3;
+
+    d16s16 = vdup_n_s16(5352);
+    d17s16 = vdup_n_s16(2217);
+    q9s32 = vdupq_n_s32(14500);
+    q10s32 = vdupq_n_s32(7500);
+    q11s32 = vdupq_n_s32(12000);
+    q12s32 = vdupq_n_s32(51000);
+
+    // Part one
+    pitch >>= 1;
+    d0s16 = vld1_s16(input);
+    input += pitch;
+    d1s16 = vld1_s16(input);
+    input += pitch;
+    d2s16 = vld1_s16(input);
+    input += pitch;
+    d3s16 = vld1_s16(input);
+
+    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16),
+                      vreinterpret_s32_s16(d2s16));
+    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16),
+                      vreinterpret_s32_s16(d3s16));
+    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),   // d0
+                      vreinterpret_s16_s32(v2tmp3.val[0]));  // d1
+    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),   // d2
+                      vreinterpret_s16_s32(v2tmp3.val[1]));  // d3
+
+    d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]);
+    d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]);
+
+    d4s16 = vshl_n_s16(d4s16, 3);
+    d5s16 = vshl_n_s16(d5s16, 3);
+    d6s16 = vshl_n_s16(d6s16, 3);
+    d7s16 = vshl_n_s16(d7s16, 3);
+
+    d0s16 = vadd_s16(d4s16, d5s16);
+    d2s16 = vsub_s16(d4s16, d5s16);
+
+    q9s32 = vmlal_s16(q9s32, d7s16, d16s16);
+    q10s32 = vmlal_s16(q10s32, d7s16, d17s16);
+    q9s32 = vmlal_s16(q9s32, d6s16, d17s16);
+    q10s32 = vmlsl_s16(q10s32, d6s16, d16s16);
+
+    d1s16 = vshrn_n_s32(q9s32, 12);
+    d3s16 = vshrn_n_s32(q10s32, 12);
+
+    // Part two
+    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16),
+                      vreinterpret_s32_s16(d2s16));
+    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16),
+                      vreinterpret_s32_s16(d3s16));
+    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),   // d0
+                      vreinterpret_s16_s32(v2tmp3.val[0]));  // d1
+    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),   // d2
+                      vreinterpret_s16_s32(v2tmp3.val[1]));  // d3
+
+    d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[1]);
+    d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[1]);
+
+    d26s16 = vdup_n_s16(7);
+    d4s16 = vadd_s16(d4s16, d26s16);
+
+    d0s16 = vadd_s16(d4s16, d5s16);
+    d2s16 = vsub_s16(d4s16, d5s16);
+
+    q11s32 = vmlal_s16(q11s32, d7s16, d16s16);
+    q12s32 = vmlal_s16(q12s32, d7s16, d17s16);
+
+    dEmptys16 = vdup_n_s16(0);
+    d4u16 = vceq_s16(d7s16, dEmptys16);
+
+    d0s16 = vshr_n_s16(d0s16, 4);
+    d2s16 = vshr_n_s16(d2s16, 4);
+
+    q11s32 = vmlal_s16(q11s32, d6s16, d17s16);
+    q12s32 = vmlsl_s16(q12s32, d6s16, d16s16);
+
+    d4u16 = vmvn_u16(d4u16);
+    d1s16 = vshrn_n_s32(q11s32, 16);
+    d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d4u16));
+    d3s16 = vshrn_n_s32(q12s32, 16);
+
+    q0s16 = vcombine_s16(d0s16, d1s16);
+    q1s16 = vcombine_s16(d2s16, d3s16);
+
+    vst1q_s16(output, q0s16);
+    vst1q_s16(output + 8, q1s16);
+    return;
+}
+
+void vp8_short_fdct8x4_neon(
+        int16_t *input,
+        int16_t *output,
+        int pitch) {
+    int16x4_t d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
+    int16x4_t d16s16, d17s16, d26s16, d27s16, d28s16, d29s16;
+    uint16x4_t d28u16, d29u16;
+    uint16x8_t q14u16;
+    int16x8_t q0s16, q1s16, q2s16, q3s16;
+    int16x8_t q11s16, q12s16, q13s16, q14s16, q15s16, qEmptys16;
+    int32x4_t q9s32, q10s32, q11s32, q12s32;
+    int16x8x2_t v2tmp0, v2tmp1;
+    int32x4x2_t v2tmp2, v2tmp3;
+
+    d16s16 = vdup_n_s16(5352);
+    d17s16 = vdup_n_s16(2217);
+    q9s32 = vdupq_n_s32(14500);
+    q10s32 = vdupq_n_s32(7500);
+
+    // Part one
+    pitch >>= 1;
+    q0s16 = vld1q_s16(input);
+    input += pitch;
+    q1s16 = vld1q_s16(input);
+    input += pitch;
+    q2s16 = vld1q_s16(input);
+    input += pitch;
+    q3s16 = vld1q_s16(input);
+
+    v2tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q0s16),
+                       vreinterpretq_s32_s16(q2s16));
+    v2tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q1s16),
+                       vreinterpretq_s32_s16(q3s16));
+    v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]),   // q0
+                       vreinterpretq_s16_s32(v2tmp3.val[0]));  // q1
+    v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]),   // q2
+                       vreinterpretq_s16_s32(v2tmp3.val[1]));  // q3
+
+    q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]);
+    q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]);
+
+    q11s16 = vshlq_n_s16(q11s16, 3);
+    q12s16 = vshlq_n_s16(q12s16, 3);
+    q13s16 = vshlq_n_s16(q13s16, 3);
+    q14s16 = vshlq_n_s16(q14s16, 3);
+
+    q0s16 = vaddq_s16(q11s16, q12s16);
+    q2s16 = vsubq_s16(q11s16, q12s16);
+
+    q11s32 = q9s32;
+    q12s32 = q10s32;
+
+    d26s16 = vget_low_s16(q13s16);
+    d27s16 = vget_high_s16(q13s16);
+    d28s16 = vget_low_s16(q14s16);
+    d29s16 = vget_high_s16(q14s16);
+
+    q9s32 = vmlal_s16(q9s32, d28s16, d16s16);
+    q10s32 = vmlal_s16(q10s32, d28s16, d17s16);
+    q11s32 = vmlal_s16(q11s32, d29s16, d16s16);
+    q12s32 = vmlal_s16(q12s32, d29s16, d17s16);
+
+    q9s32 = vmlal_s16(q9s32, d26s16, d17s16);
+    q10s32 = vmlsl_s16(q10s32, d26s16, d16s16);
+    q11s32 = vmlal_s16(q11s32, d27s16, d17s16);
+    q12s32 = vmlsl_s16(q12s32, d27s16, d16s16);
+
+    d2s16 = vshrn_n_s32(q9s32, 12);
+    d6s16 = vshrn_n_s32(q10s32, 12);
+    d3s16 = vshrn_n_s32(q11s32, 12);
+    d7s16 = vshrn_n_s32(q12s32, 12);
+    q1s16 = vcombine_s16(d2s16, d3s16);
+    q3s16 = vcombine_s16(d6s16, d7s16);
+
+    // Part two
+    q9s32 = vdupq_n_s32(12000);
+    q10s32 = vdupq_n_s32(51000);
+
+    v2tmp2 = vtrnq_s32(vreinterpretq_s32_s16(q0s16),
+                       vreinterpretq_s32_s16(q2s16));
+    v2tmp3 = vtrnq_s32(vreinterpretq_s32_s16(q1s16),
+                       vreinterpretq_s32_s16(q3s16));
+    v2tmp0 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[0]),   // q0
+                       vreinterpretq_s16_s32(v2tmp3.val[0]));  // q1
+    v2tmp1 = vtrnq_s16(vreinterpretq_s16_s32(v2tmp2.val[1]),   // q2
+                       vreinterpretq_s16_s32(v2tmp3.val[1]));  // q3
+
+    q11s16 = vaddq_s16(v2tmp0.val[0], v2tmp1.val[1]);
+    q12s16 = vaddq_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    q13s16 = vsubq_s16(v2tmp0.val[1], v2tmp1.val[0]);
+    q14s16 = vsubq_s16(v2tmp0.val[0], v2tmp1.val[1]);
+
+    q15s16 = vdupq_n_s16(7);
+    q11s16 = vaddq_s16(q11s16, q15s16);
+    q0s16 = vaddq_s16(q11s16, q12s16);
+    q1s16 = vsubq_s16(q11s16, q12s16);
+
+    q11s32 = q9s32;
+    q12s32 = q10s32;
+
+    d0s16 = vget_low_s16(q0s16);
+    d1s16 = vget_high_s16(q0s16);
+    d2s16 = vget_low_s16(q1s16);
+    d3s16 = vget_high_s16(q1s16);
+
+    d0s16 = vshr_n_s16(d0s16, 4);
+    d4s16 = vshr_n_s16(d1s16, 4);
+    d2s16 = vshr_n_s16(d2s16, 4);
+    d6s16 = vshr_n_s16(d3s16, 4);
+
+    d26s16 = vget_low_s16(q13s16);
+    d27s16 = vget_high_s16(q13s16);
+    d28s16 = vget_low_s16(q14s16);
+    d29s16 = vget_high_s16(q14s16);
+
+    q9s32 = vmlal_s16(q9s32, d28s16, d16s16);
+    q10s32 = vmlal_s16(q10s32, d28s16, d17s16);
+    q11s32 = vmlal_s16(q11s32, d29s16, d16s16);
+    q12s32 = vmlal_s16(q12s32, d29s16, d17s16);
+
+    q9s32 = vmlal_s16(q9s32, d26s16, d17s16);
+    q10s32 = vmlsl_s16(q10s32, d26s16, d16s16);
+    q11s32 = vmlal_s16(q11s32, d27s16, d17s16);
+    q12s32 = vmlsl_s16(q12s32, d27s16, d16s16);
+
+    d1s16 = vshrn_n_s32(q9s32, 16);
+    d3s16 = vshrn_n_s32(q10s32, 16);
+    d5s16 = vshrn_n_s32(q11s32, 16);
+    d7s16 = vshrn_n_s32(q12s32, 16);
+
+    qEmptys16 = vdupq_n_s16(0);
+    q14u16 = vceqq_s16(q14s16, qEmptys16);
+    q14u16 = vmvnq_u16(q14u16);
+
+    d28u16 = vget_low_u16(q14u16);
+    d29u16 = vget_high_u16(q14u16);
+    d1s16 = vsub_s16(d1s16, vreinterpret_s16_u16(d28u16));
+    d5s16 = vsub_s16(d5s16, vreinterpret_s16_u16(d29u16));
+
+    q0s16 = vcombine_s16(d0s16, d1s16);
+    q1s16 = vcombine_s16(d2s16, d3s16);
+    q2s16 = vcombine_s16(d4s16, d5s16);
+    q3s16 = vcombine_s16(d6s16, d7s16);
+
+    vst1q_s16(output, q0s16);
+    vst1q_s16(output + 8, q1s16);
+    vst1q_s16(output + 16, q2s16);
+    vst1q_s16(output + 24, q3s16);
+    return;
+}
diff --git a/media/libvpx/vp8/encoder/arm/neon/subtract_neon.c b/media/libvpx/vp8/encoder/arm/neon/subtract_neon.c
new file mode 100644
index 000000000..d3ab7b165
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/neon/subtract_neon.c
@@ -0,0 +1,154 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "vp8/encoder/block.h"
+
+void vp8_subtract_b_neon(
+        BLOCK *be,
+        BLOCKD *bd,
+        int pitch) {
+    unsigned char *src_ptr, *predictor;
+    int src_stride;
+    int16_t *src_diff;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8;
+    uint16x8_t q10u16, q11u16, q12u16, q13u16;
+
+    src_ptr = *be->base_src + be->src;
+    src_stride = be->src_stride;
+    predictor = bd->predictor;
+
+    d0u8 = vld1_u8(src_ptr);
+    src_ptr += src_stride;
+    d2u8 = vld1_u8(src_ptr);
+    src_ptr += src_stride;
+    d4u8 = vld1_u8(src_ptr);
+    src_ptr += src_stride;
+    d6u8 = vld1_u8(src_ptr);
+
+    d1u8 = vld1_u8(predictor);
+    predictor += pitch;
+    d3u8 = vld1_u8(predictor);
+    predictor += pitch;
+    d5u8 = vld1_u8(predictor);
+    predictor += pitch;
+    d7u8 = vld1_u8(predictor);
+
+    q10u16 = vsubl_u8(d0u8, d1u8);
+    q11u16 = vsubl_u8(d2u8, d3u8);
+    q12u16 = vsubl_u8(d4u8, d5u8);
+    q13u16 = vsubl_u8(d6u8, d7u8);
+
+    src_diff = be->src_diff;
+    vst1_u16((uint16_t *)src_diff, vget_low_u16(q10u16));
+    src_diff += pitch;
+    vst1_u16((uint16_t *)src_diff, vget_low_u16(q11u16));
+    src_diff += pitch;
+    vst1_u16((uint16_t *)src_diff, vget_low_u16(q12u16));
+    src_diff += pitch;
+    vst1_u16((uint16_t *)src_diff, vget_low_u16(q13u16));
+    return;
+}
+
+void vp8_subtract_mby_neon(
+        int16_t *diff,
+        unsigned char *src,
+        int src_stride,
+        unsigned char *pred,
+        int pred_stride) {
+    int i;
+    uint8x16_t q0u8, q1u8, q2u8, q3u8;
+    uint16x8_t q8u16, q9u16, q10u16, q11u16;
+
+    for (i = 0; i < 8; i++) {  // subtract_mby_loop
+        q0u8 = vld1q_u8(src);
+        src += src_stride;
+        q2u8 = vld1q_u8(src);
+        src += src_stride;
+        q1u8 = vld1q_u8(pred);
+        pred += pred_stride;
+        q3u8 = vld1q_u8(pred);
+        pred += pred_stride;
+
+        q8u16 = vsubl_u8(vget_low_u8(q0u8), vget_low_u8(q1u8));
+        q9u16 = vsubl_u8(vget_high_u8(q0u8), vget_high_u8(q1u8));
+        q10u16 = vsubl_u8(vget_low_u8(q2u8), vget_low_u8(q3u8));
+        q11u16 = vsubl_u8(vget_high_u8(q2u8), vget_high_u8(q3u8));
+
+        vst1q_u16((uint16_t *)diff, q8u16);
+        diff += 8;
+        vst1q_u16((uint16_t *)diff, q9u16);
+        diff += 8;
+        vst1q_u16((uint16_t *)diff, q10u16);
+        diff += 8;
+        vst1q_u16((uint16_t *)diff, q11u16);
+        diff += 8;
+    }
+    return;
+}
+
+void vp8_subtract_mbuv_neon(
+        int16_t *diff,
+        unsigned char *usrc,
+        unsigned char *vsrc,
+        int src_stride,
+        unsigned char *upred,
+        unsigned char *vpred,
+        int pred_stride) {
+    int i, j;
+    unsigned char *src_ptr, *pred_ptr;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8;
+    uint16x8_t q8u16, q9u16, q10u16, q11u16;
+
+    diff += 256;
+    for (i = 0; i < 2; i++) {
+        if (i == 0) {
+            src_ptr = usrc;
+            pred_ptr = upred;
+        } else if (i == 1) {
+            src_ptr = vsrc;
+            pred_ptr = vpred;
+        }
+
+        for (j = 0; j < 2; j++) {
+            d0u8 = vld1_u8(src_ptr);
+            src_ptr += src_stride;
+            d1u8 = vld1_u8(pred_ptr);
+            pred_ptr += pred_stride;
+            d2u8 = vld1_u8(src_ptr);
+            src_ptr += src_stride;
+            d3u8 = vld1_u8(pred_ptr);
+            pred_ptr += pred_stride;
+            d4u8 = vld1_u8(src_ptr);
+            src_ptr += src_stride;
+            d5u8 = vld1_u8(pred_ptr);
+            pred_ptr += pred_stride;
+            d6u8 = vld1_u8(src_ptr);
+            src_ptr += src_stride;
+            d7u8 = vld1_u8(pred_ptr);
+            pred_ptr += pred_stride;
+
+            q8u16  = vsubl_u8(d0u8, d1u8);
+            q9u16  = vsubl_u8(d2u8, d3u8);
+            q10u16 = vsubl_u8(d4u8, d5u8);
+            q11u16 = vsubl_u8(d6u8, d7u8);
+
+            vst1q_u16((uint16_t *)diff, q8u16);
+            diff += 8;
+            vst1q_u16((uint16_t *)diff, q9u16);
+            diff += 8;
+            vst1q_u16((uint16_t *)diff, q10u16);
+            diff += 8;
+            vst1q_u16((uint16_t *)diff, q11u16);
+            diff += 8;
+        }
+    }
+    return;
+}
diff --git a/media/libvpx/vp8/encoder/arm/neon/vp8_shortwalsh4x4_neon.c b/media/libvpx/vp8/encoder/arm/neon/vp8_shortwalsh4x4_neon.c
new file mode 100644
index 000000000..5ad946500
--- /dev/null
+++ b/media/libvpx/vp8/encoder/arm/neon/vp8_shortwalsh4x4_neon.c
@@ -0,0 +1,129 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <arm_neon.h>
+#include "vpx_ports/arm.h"
+
+#ifdef VPX_INCOMPATIBLE_GCC
+#include "./vp8_rtcd.h"
+void vp8_short_walsh4x4_neon(
+        int16_t *input,
+        int16_t *output,
+        int pitch) {
+  vp8_short_walsh4x4_c(input, output, pitch);
+}
+#else
+void vp8_short_walsh4x4_neon(
+        int16_t *input,
+        int16_t *output,
+        int pitch) {
+    uint16x4_t d16u16;
+    int16x8_t q0s16, q1s16;
+    int16x4_t dEmptys16, d0s16, d1s16, d2s16, d3s16, d4s16, d5s16, d6s16, d7s16;
+    int32x4_t qEmptys32, q0s32, q1s32, q2s32, q3s32, q8s32;
+    int32x4_t q9s32, q10s32, q11s32, q15s32;
+    uint32x4_t q8u32, q9u32, q10u32, q11u32;
+    int16x4x2_t v2tmp0, v2tmp1;
+    int32x2x2_t v2tmp2, v2tmp3;
+
+    dEmptys16 = vdup_n_s16(0);
+    qEmptys32 = vdupq_n_s32(0);
+    q15s32 = vdupq_n_s32(3);
+
+    d0s16 = vld1_s16(input);
+    input += pitch/2;
+    d1s16 = vld1_s16(input);
+    input += pitch/2;
+    d2s16 = vld1_s16(input);
+    input += pitch/2;
+    d3s16 = vld1_s16(input);
+
+    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d0s16),
+                      vreinterpret_s32_s16(d2s16));
+    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d1s16),
+                      vreinterpret_s32_s16(d3s16));
+    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[0]),   // d0
+                      vreinterpret_s16_s32(v2tmp3.val[0]));  // d1
+    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp2.val[1]),   // d2
+                      vreinterpret_s16_s32(v2tmp3.val[1]));  // d3
+
+    d4s16 = vadd_s16(v2tmp0.val[0], v2tmp1.val[0]);
+    d5s16 = vadd_s16(v2tmp0.val[1], v2tmp1.val[1]);
+    d6s16 = vsub_s16(v2tmp0.val[1], v2tmp1.val[1]);
+    d7s16 = vsub_s16(v2tmp0.val[0], v2tmp1.val[0]);
+
+    d4s16 = vshl_n_s16(d4s16, 2);
+    d5s16 = vshl_n_s16(d5s16, 2);
+    d6s16 = vshl_n_s16(d6s16, 2);
+    d7s16 = vshl_n_s16(d7s16, 2);
+
+    d16u16 = vceq_s16(d4s16, dEmptys16);
+    d16u16 = vmvn_u16(d16u16);
+
+    d0s16 = vadd_s16(d4s16, d5s16);
+    d3s16 = vsub_s16(d4s16, d5s16);
+    d1s16 = vadd_s16(d7s16, d6s16);
+    d2s16 = vsub_s16(d7s16, d6s16);
+
+    d0s16 = vsub_s16(d0s16, vreinterpret_s16_u16(d16u16));
+
+    // Second for-loop
+    v2tmp2 = vtrn_s32(vreinterpret_s32_s16(d1s16),
+                      vreinterpret_s32_s16(d3s16));
+    v2tmp3 = vtrn_s32(vreinterpret_s32_s16(d0s16),
+                      vreinterpret_s32_s16(d2s16));
+    v2tmp0 = vtrn_s16(vreinterpret_s16_s32(v2tmp3.val[1]),   // d2
+                      vreinterpret_s16_s32(v2tmp2.val[1]));  // d3
+    v2tmp1 = vtrn_s16(vreinterpret_s16_s32(v2tmp3.val[0]),   // d0
+                      vreinterpret_s16_s32(v2tmp2.val[0]));  // d1
+
+    q8s32  = vaddl_s16(v2tmp1.val[0], v2tmp0.val[0]);
+    q9s32  = vaddl_s16(v2tmp1.val[1], v2tmp0.val[1]);
+    q10s32 = vsubl_s16(v2tmp1.val[1], v2tmp0.val[1]);
+    q11s32 = vsubl_s16(v2tmp1.val[0], v2tmp0.val[0]);
+
+    q0s32 = vaddq_s32(q8s32, q9s32);
+    q1s32 = vaddq_s32(q11s32, q10s32);
+    q2s32 = vsubq_s32(q11s32, q10s32);
+    q3s32 = vsubq_s32(q8s32, q9s32);
+
+    q8u32  = vcltq_s32(q0s32, qEmptys32);
+    q9u32  = vcltq_s32(q1s32, qEmptys32);
+    q10u32 = vcltq_s32(q2s32, qEmptys32);
+    q11u32 = vcltq_s32(q3s32, qEmptys32);
+
+    q8s32  = vreinterpretq_s32_u32(q8u32);
+    q9s32  = vreinterpretq_s32_u32(q9u32);
+    q10s32 = vreinterpretq_s32_u32(q10u32);
+    q11s32 = vreinterpretq_s32_u32(q11u32);
+
+    q0s32 = vsubq_s32(q0s32, q8s32);
+    q1s32 = vsubq_s32(q1s32, q9s32);
+    q2s32 = vsubq_s32(q2s32, q10s32);
+    q3s32 = vsubq_s32(q3s32, q11s32);
+
+    q8s32  = vaddq_s32(q0s32, q15s32);
+    q9s32  = vaddq_s32(q1s32, q15s32);
+    q10s32 = vaddq_s32(q2s32, q15s32);
+    q11s32 = vaddq_s32(q3s32, q15s32);
+
+    d0s16 = vshrn_n_s32(q8s32, 3);
+    d1s16 = vshrn_n_s32(q9s32, 3);
+    d2s16 = vshrn_n_s32(q10s32, 3);
+    d3s16 = vshrn_n_s32(q11s32, 3);
+
+    q0s16 = vcombine_s16(d0s16, d1s16);
+    q1s16 = vcombine_s16(d2s16, d3s16);
+
+    vst1q_s16(output, q0s16);
+    vst1q_s16(output + 8, q1s16);
+    return;
+}
+#endif  // VPX_INCOMPATIBLE_GCC
diff --git a/media/libvpx/vp8/encoder/bitstream.c b/media/libvpx/vp8/encoder/bitstream.c
new file mode 100644
index 000000000..ea279b321
--- /dev/null
+++ b/media/libvpx/vp8/encoder/bitstream.c
@@ -0,0 +1,1737 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vp8/common/header.h"
+#include "encodemv.h"
+#include "vp8/common/entropymode.h"
+#include "vp8/common/findnearmv.h"
+#include "mcomp.h"
+#include "vp8/common/systemdependent.h"
+#include <assert.h>
+#include <stdio.h>
+#include <limits.h>
+#include "vpx/vpx_encoder.h"
+#include "vpx_mem/vpx_mem.h"
+#include "bitstream.h"
+
+#include "defaultcoefcounts.h"
+#include "vp8/common/common.h"
+
+const int vp8cx_base_skip_false_prob[128] =
+{
+    255, 255, 255, 255, 255, 255, 255, 255,
+    255, 255, 255, 255, 255, 255, 255, 255,
+    255, 255, 255, 255, 255, 255, 255, 255,
+    255, 255, 255, 255, 255, 255, 255, 255,
+    255, 255, 255, 255, 255, 255, 255, 255,
+    255, 255, 255, 255, 255, 255, 255, 255,
+    255, 255, 255, 255, 255, 255, 255, 255,
+    251, 248, 244, 240, 236, 232, 229, 225,
+    221, 217, 213, 208, 204, 199, 194, 190,
+    187, 183, 179, 175, 172, 168, 164, 160,
+    157, 153, 149, 145, 142, 138, 134, 130,
+    127, 124, 120, 117, 114, 110, 107, 104,
+    101, 98,  95,  92,  89,  86,  83, 80,
+    77,  74,  71,  68,  65,  62,  59, 56,
+    53,  50,  47,  44,  41,  38,  35, 32,
+    30,  28,  26,  24,  22,  20,  18, 16,
+};
+
+#if defined(SECTIONBITS_OUTPUT)
+unsigned __int64 Sectionbits[500];
+#endif
+
+#ifdef VP8_ENTROPY_STATS
+int intra_mode_stats[10][10][10];
+static unsigned int tree_update_hist [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES] [2];
+extern unsigned int active_section;
+#endif
+
+#ifdef MODE_STATS
+int count_mb_seg[4] = { 0, 0, 0, 0 };
+#endif
+
+
+static void update_mode(
+    vp8_writer *const w,
+    int n,
+    vp8_token tok               [/* n */],
+    vp8_tree tree,
+    vp8_prob Pnew               [/* n-1 */],
+    vp8_prob Pcur               [/* n-1 */],
+    unsigned int bct            [/* n-1 */] [2],
+    const unsigned int num_events[/* n */]
+)
+{
+    unsigned int new_b = 0, old_b = 0;
+    int i = 0;
+
+    vp8_tree_probs_from_distribution(
+        n--, tok, tree,
+        Pnew, bct, num_events,
+        256, 1
+    );
+
+    do
+    {
+        new_b += vp8_cost_branch(bct[i], Pnew[i]);
+        old_b += vp8_cost_branch(bct[i], Pcur[i]);
+    }
+    while (++i < n);
+
+    if (new_b + (n << 8) < old_b)
+    {
+        int j = 0;
+
+        vp8_write_bit(w, 1);
+
+        do
+        {
+            const vp8_prob p = Pnew[j];
+
+            vp8_write_literal(w, Pcur[j] = p ? p : 1, 8);
+        }
+        while (++j < n);
+    }
+    else
+        vp8_write_bit(w, 0);
+}
+
+static void update_mbintra_mode_probs(VP8_COMP *cpi)
+{
+    VP8_COMMON *const x = & cpi->common;
+
+    vp8_writer *const w = cpi->bc;
+
+    {
+        vp8_prob Pnew   [VP8_YMODES-1];
+        unsigned int bct [VP8_YMODES-1] [2];
+
+        update_mode(
+            w, VP8_YMODES, vp8_ymode_encodings, vp8_ymode_tree,
+            Pnew, x->fc.ymode_prob, bct, (unsigned int *)cpi->mb.ymode_count
+        );
+    }
+    {
+        vp8_prob Pnew   [VP8_UV_MODES-1];
+        unsigned int bct [VP8_UV_MODES-1] [2];
+
+        update_mode(
+            w, VP8_UV_MODES, vp8_uv_mode_encodings, vp8_uv_mode_tree,
+            Pnew, x->fc.uv_mode_prob, bct, (unsigned int *)cpi->mb.uv_mode_count
+        );
+    }
+}
+
+static void write_ymode(vp8_writer *bc, int m, const vp8_prob *p)
+{
+    vp8_write_token(bc, vp8_ymode_tree, p, vp8_ymode_encodings + m);
+}
+
+static void kfwrite_ymode(vp8_writer *bc, int m, const vp8_prob *p)
+{
+    vp8_write_token(bc, vp8_kf_ymode_tree, p, vp8_kf_ymode_encodings + m);
+}
+
+static void write_uv_mode(vp8_writer *bc, int m, const vp8_prob *p)
+{
+    vp8_write_token(bc, vp8_uv_mode_tree, p, vp8_uv_mode_encodings + m);
+}
+
+
+static void write_bmode(vp8_writer *bc, int m, const vp8_prob *p)
+{
+    vp8_write_token(bc, vp8_bmode_tree, p, vp8_bmode_encodings + m);
+}
+
+static void write_split(vp8_writer *bc, int x)
+{
+    vp8_write_token(
+        bc, vp8_mbsplit_tree, vp8_mbsplit_probs, vp8_mbsplit_encodings + x
+    );
+}
+
+void vp8_pack_tokens(vp8_writer *w, const TOKENEXTRA *p, int xcount)
+{
+    const TOKENEXTRA *stop = p + xcount;
+    unsigned int split;
+    unsigned int shift;
+    int count = w->count;
+    unsigned int range = w->range;
+    unsigned int lowvalue = w->lowvalue;
+
+    while (p < stop)
+    {
+        const int t = p->Token;
+        vp8_token *a = vp8_coef_encodings + t;
+        const vp8_extra_bit_struct *b = vp8_extra_bits + t;
+        int i = 0;
+        const unsigned char *pp = p->context_tree;
+        int v = a->value;
+        int n = a->Len;
+
+        if (p->skip_eob_node)
+        {
+            n--;
+            i = 2;
+        }
+
+        do
+        {
+            const int bb = (v >> --n) & 1;
+            split = 1 + (((range - 1) * pp[i>>1]) >> 8);
+            i = vp8_coef_tree[i+bb];
+
+            if (bb)
+            {
+                lowvalue += split;
+                range = range - split;
+            }
+            else
+            {
+                range = split;
+            }
+
+            shift = vp8_norm[range];
+            range <<= shift;
+            count += shift;
+
+            if (count >= 0)
+            {
+                int offset = shift - count;
+
+                if ((lowvalue << (offset - 1)) & 0x80000000)
+                {
+                    int x = w->pos - 1;
+
+                    while (x >= 0 && w->buffer[x] == 0xff)
+                    {
+                        w->buffer[x] = (unsigned char)0;
+                        x--;
+                    }
+
+                    w->buffer[x] += 1;
+                }
+
+                validate_buffer(w->buffer + w->pos,
+                                1,
+                                w->buffer_end,
+                                w->error);
+
+                w->buffer[w->pos++] = (lowvalue >> (24 - offset));
+                lowvalue <<= offset;
+                shift = count;
+                lowvalue &= 0xffffff;
+                count -= 8 ;
+            }
+
+            lowvalue <<= shift;
+        }
+        while (n);
+
+
+        if (b->base_val)
+        {
+            const int e = p->Extra, L = b->Len;
+
+            if (L)
+            {
+                const unsigned char *proba = b->prob;
+                const int v2 = e >> 1;
+                int n2 = L;              /* number of bits in v2, assumed nonzero */
+                i = 0;
+
+                do
+                {
+                    const int bb = (v2 >> --n2) & 1;
+                    split = 1 + (((range - 1) * proba[i>>1]) >> 8);
+                    i = b->tree[i+bb];
+
+                    if (bb)
+                    {
+                        lowvalue += split;
+                        range = range - split;
+                    }
+                    else
+                    {
+                        range = split;
+                    }
+
+                    shift = vp8_norm[range];
+                    range <<= shift;
+                    count += shift;
+
+                    if (count >= 0)
+                    {
+                        int offset = shift - count;
+
+                        if ((lowvalue << (offset - 1)) & 0x80000000)
+                        {
+                            int x = w->pos - 1;
+
+                            while (x >= 0 && w->buffer[x] == 0xff)
+                            {
+                                w->buffer[x] = (unsigned char)0;
+                                x--;
+                            }
+
+                            w->buffer[x] += 1;
+                        }
+
+                        validate_buffer(w->buffer + w->pos,
+                                        1,
+                                        w->buffer_end,
+                                        w->error);
+
+                        w->buffer[w->pos++] = (lowvalue >> (24 - offset));
+                        lowvalue <<= offset;
+                        shift = count;
+                        lowvalue &= 0xffffff;
+                        count -= 8 ;
+                    }
+
+                    lowvalue <<= shift;
+                }
+                while (n2);
+            }
+
+
+            {
+
+                split = (range + 1) >> 1;
+
+                if (e & 1)
+                {
+                    lowvalue += split;
+                    range = range - split;
+                }
+                else
+                {
+                    range = split;
+                }
+
+                range <<= 1;
+
+                if ((lowvalue & 0x80000000))
+                {
+                    int x = w->pos - 1;
+
+                    while (x >= 0 && w->buffer[x] == 0xff)
+                    {
+                        w->buffer[x] = (unsigned char)0;
+                        x--;
+                    }
+
+                    w->buffer[x] += 1;
+
+                }
+
+                lowvalue  <<= 1;
+
+                if (!++count)
+                {
+                    count = -8;
+
+                    validate_buffer(w->buffer + w->pos,
+                                    1,
+                                    w->buffer_end,
+                                    w->error);
+
+                    w->buffer[w->pos++] = (lowvalue >> 24);
+                    lowvalue &= 0xffffff;
+                }
+            }
+
+        }
+
+        ++p;
+    }
+
+    w->count = count;
+    w->lowvalue = lowvalue;
+    w->range = range;
+
+}
+
+static void write_partition_size(unsigned char *cx_data, int size)
+{
+    signed char csize;
+
+    csize = size & 0xff;
+    *cx_data = csize;
+    csize = (size >> 8) & 0xff;
+    *(cx_data + 1) = csize;
+    csize = (size >> 16) & 0xff;
+    *(cx_data + 2) = csize;
+
+}
+
+static void pack_tokens_into_partitions(VP8_COMP *cpi, unsigned char *cx_data,
+                                          unsigned char * cx_data_end,
+                                          int num_part)
+{
+
+    int i;
+    unsigned char *ptr = cx_data;
+    unsigned char *ptr_end = cx_data_end;
+    vp8_writer * w;
+
+    for (i = 0; i < num_part; i++)
+    {
+        int mb_row;
+
+        w = cpi->bc + i + 1;
+
+        vp8_start_encode(w, ptr, ptr_end);
+
+        for (mb_row = i; mb_row < cpi->common.mb_rows; mb_row += num_part)
+        {
+            const TOKENEXTRA *p    = cpi->tplist[mb_row].start;
+            const TOKENEXTRA *stop = cpi->tplist[mb_row].stop;
+            int tokens = (int)(stop - p);
+
+            vp8_pack_tokens(w, p, tokens);
+        }
+
+        vp8_stop_encode(w);
+        ptr += w->pos;
+    }
+}
+
+
+static void pack_mb_row_tokens(VP8_COMP *cpi, vp8_writer *w)
+{
+    int mb_row;
+
+    for (mb_row = 0; mb_row < cpi->common.mb_rows; mb_row++)
+    {
+        const TOKENEXTRA *p    = cpi->tplist[mb_row].start;
+        const TOKENEXTRA *stop = cpi->tplist[mb_row].stop;
+        int tokens = (int)(stop - p);
+
+        vp8_pack_tokens(w, p, tokens);
+    }
+
+}
+
+static void write_mv_ref
+(
+    vp8_writer *w, MB_PREDICTION_MODE m, const vp8_prob *p
+)
+{
+#if CONFIG_DEBUG
+    assert(NEARESTMV <= m  &&  m <= SPLITMV);
+#endif
+    vp8_write_token(w, vp8_mv_ref_tree, p,
+                    vp8_mv_ref_encoding_array + (m - NEARESTMV));
+}
+
+static void write_sub_mv_ref
+(
+    vp8_writer *w, B_PREDICTION_MODE m, const vp8_prob *p
+)
+{
+#if CONFIG_DEBUG
+    assert(LEFT4X4 <= m  &&  m <= NEW4X4);
+#endif
+    vp8_write_token(w, vp8_sub_mv_ref_tree, p,
+                    vp8_sub_mv_ref_encoding_array + (m - LEFT4X4));
+}
+
+static void write_mv
+(
+    vp8_writer *w, const MV *mv, const int_mv *ref, const MV_CONTEXT *mvc
+)
+{
+    MV e;
+    e.row = mv->row - ref->as_mv.row;
+    e.col = mv->col - ref->as_mv.col;
+
+    vp8_encode_motion_vector(w, &e, mvc);
+}
+
+static void write_mb_features(vp8_writer *w, const MB_MODE_INFO *mi, const MACROBLOCKD *x)
+{
+    /* Encode the MB segment id. */
+    if (x->segmentation_enabled && x->update_mb_segmentation_map)
+    {
+        switch (mi->segment_id)
+        {
+        case 0:
+            vp8_write(w, 0, x->mb_segment_tree_probs[0]);
+            vp8_write(w, 0, x->mb_segment_tree_probs[1]);
+            break;
+        case 1:
+            vp8_write(w, 0, x->mb_segment_tree_probs[0]);
+            vp8_write(w, 1, x->mb_segment_tree_probs[1]);
+            break;
+        case 2:
+            vp8_write(w, 1, x->mb_segment_tree_probs[0]);
+            vp8_write(w, 0, x->mb_segment_tree_probs[2]);
+            break;
+        case 3:
+            vp8_write(w, 1, x->mb_segment_tree_probs[0]);
+            vp8_write(w, 1, x->mb_segment_tree_probs[2]);
+            break;
+
+            /* TRAP.. This should not happen */
+        default:
+            vp8_write(w, 0, x->mb_segment_tree_probs[0]);
+            vp8_write(w, 0, x->mb_segment_tree_probs[1]);
+            break;
+        }
+    }
+}
+void vp8_convert_rfct_to_prob(VP8_COMP *const cpi)
+{
+    const int *const rfct = cpi->mb.count_mb_ref_frame_usage;
+    const int rf_intra = rfct[INTRA_FRAME];
+    const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
+
+    /* Calculate the probabilities used to code the ref frame based on usage */
+    if (!(cpi->prob_intra_coded = rf_intra * 255 / (rf_intra + rf_inter)))
+        cpi->prob_intra_coded = 1;
+
+    cpi->prob_last_coded = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128;
+
+    if (!cpi->prob_last_coded)
+        cpi->prob_last_coded = 1;
+
+    cpi->prob_gf_coded = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME])
+                  ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128;
+
+    if (!cpi->prob_gf_coded)
+        cpi->prob_gf_coded = 1;
+
+}
+
+static void pack_inter_mode_mvs(VP8_COMP *const cpi)
+{
+    VP8_COMMON *const pc = & cpi->common;
+    vp8_writer *const w = cpi->bc;
+    const MV_CONTEXT *mvc = pc->fc.mvc;
+
+
+    MODE_INFO *m = pc->mi;
+    const int mis = pc->mode_info_stride;
+    int mb_row = -1;
+
+    int prob_skip_false = 0;
+
+    cpi->mb.partition_info = cpi->mb.pi;
+
+    vp8_convert_rfct_to_prob(cpi);
+
+#ifdef VP8_ENTROPY_STATS
+    active_section = 1;
+#endif
+
+    if (pc->mb_no_coeff_skip)
+    {
+        int total_mbs = pc->mb_rows * pc->mb_cols;
+
+        prob_skip_false = (total_mbs - cpi->mb.skip_true_count ) * 256 / total_mbs;
+
+        if (prob_skip_false <= 1)
+            prob_skip_false = 1;
+
+        if (prob_skip_false > 255)
+            prob_skip_false = 255;
+
+        cpi->prob_skip_false = prob_skip_false;
+        vp8_write_literal(w, prob_skip_false, 8);
+    }
+
+    vp8_write_literal(w, cpi->prob_intra_coded, 8);
+    vp8_write_literal(w, cpi->prob_last_coded, 8);
+    vp8_write_literal(w, cpi->prob_gf_coded, 8);
+
+    update_mbintra_mode_probs(cpi);
+
+    vp8_write_mvprobs(cpi);
+
+    while (++mb_row < pc->mb_rows)
+    {
+        int mb_col = -1;
+
+        while (++mb_col < pc->mb_cols)
+        {
+            const MB_MODE_INFO *const mi = & m->mbmi;
+            const MV_REFERENCE_FRAME rf = mi->ref_frame;
+            const MB_PREDICTION_MODE mode = mi->mode;
+
+            MACROBLOCKD *xd = &cpi->mb.e_mbd;
+
+            /* Distance of Mb to the various image edges.
+             * These specified to 8th pel as they are always compared to MV
+             * values that are in 1/8th pel units
+             */
+            xd->mb_to_left_edge = -((mb_col * 16) << 3);
+            xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3;
+            xd->mb_to_top_edge = -((mb_row * 16) << 3);
+            xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3;
+
+#ifdef VP8_ENTROPY_STATS
+            active_section = 9;
+#endif
+
+            if (cpi->mb.e_mbd.update_mb_segmentation_map)
+                write_mb_features(w, mi, &cpi->mb.e_mbd);
+
+            if (pc->mb_no_coeff_skip)
+                vp8_encode_bool(w, m->mbmi.mb_skip_coeff, prob_skip_false);
+
+            if (rf == INTRA_FRAME)
+            {
+                vp8_write(w, 0, cpi->prob_intra_coded);
+#ifdef VP8_ENTROPY_STATS
+                active_section = 6;
+#endif
+                write_ymode(w, mode, pc->fc.ymode_prob);
+
+                if (mode == B_PRED)
+                {
+                    int j = 0;
+
+                    do
+                        write_bmode(w, m->bmi[j].as_mode, pc->fc.bmode_prob);
+                    while (++j < 16);
+                }
+
+                write_uv_mode(w, mi->uv_mode, pc->fc.uv_mode_prob);
+            }
+            else    /* inter coded */
+            {
+                int_mv best_mv;
+                vp8_prob mv_ref_p [VP8_MVREFS-1];
+
+                vp8_write(w, 1, cpi->prob_intra_coded);
+
+                if (rf == LAST_FRAME)
+                    vp8_write(w, 0, cpi->prob_last_coded);
+                else
+                {
+                    vp8_write(w, 1, cpi->prob_last_coded);
+                    vp8_write(w, (rf == GOLDEN_FRAME) ? 0 : 1, cpi->prob_gf_coded);
+                }
+
+                {
+                    int_mv n1, n2;
+                    int ct[4];
+
+                    vp8_find_near_mvs(xd, m, &n1, &n2, &best_mv, ct, rf, cpi->common.ref_frame_sign_bias);
+                    vp8_clamp_mv2(&best_mv, xd);
+
+                    vp8_mv_ref_probs(mv_ref_p, ct);
+
+#ifdef VP8_ENTROPY_STATS
+                    accum_mv_refs(mode, ct);
+#endif
+
+                }
+
+#ifdef VP8_ENTROPY_STATS
+                active_section = 3;
+#endif
+
+                write_mv_ref(w, mode, mv_ref_p);
+
+                switch (mode)   /* new, split require MVs */
+                {
+                case NEWMV:
+
+#ifdef VP8_ENTROPY_STATS
+                    active_section = 5;
+#endif
+
+                    write_mv(w, &mi->mv.as_mv, &best_mv, mvc);
+                    break;
+
+                case SPLITMV:
+                {
+                    int j = 0;
+
+#ifdef MODE_STATS
+                    ++count_mb_seg [mi->partitioning];
+#endif
+
+                    write_split(w, mi->partitioning);
+
+                    do
+                    {
+                        B_PREDICTION_MODE blockmode;
+                        int_mv blockmv;
+                        const int *const  L = vp8_mbsplits [mi->partitioning];
+                        int k = -1;  /* first block in subset j */
+                        int mv_contz;
+                        int_mv leftmv, abovemv;
+
+                        blockmode =  cpi->mb.partition_info->bmi[j].mode;
+                        blockmv =  cpi->mb.partition_info->bmi[j].mv;
+#if CONFIG_DEBUG
+                        while (j != L[++k])
+                            if (k >= 16)
+                                assert(0);
+#else
+                        while (j != L[++k]);
+#endif
+                        leftmv.as_int = left_block_mv(m, k);
+                        abovemv.as_int = above_block_mv(m, k, mis);
+                        mv_contz = vp8_mv_cont(&leftmv, &abovemv);
+
+                        write_sub_mv_ref(w, blockmode, vp8_sub_mv_ref_prob2 [mv_contz]);
+
+                        if (blockmode == NEW4X4)
+                        {
+#ifdef VP8_ENTROPY_STATS
+                            active_section = 11;
+#endif
+                            write_mv(w, &blockmv.as_mv, &best_mv, (const MV_CONTEXT *) mvc);
+                        }
+                    }
+                    while (++j < cpi->mb.partition_info->count);
+                }
+                break;
+                default:
+                    break;
+                }
+            }
+
+            ++m;
+            cpi->mb.partition_info++;
+        }
+
+        ++m;  /* skip L prediction border */
+        cpi->mb.partition_info++;
+    }
+}
+
+
+static void write_kfmodes(VP8_COMP *cpi)
+{
+    vp8_writer *const bc = cpi->bc;
+    const VP8_COMMON *const c = & cpi->common;
+    /* const */
+    MODE_INFO *m = c->mi;
+
+    int mb_row = -1;
+    int prob_skip_false = 0;
+
+    if (c->mb_no_coeff_skip)
+    {
+        int total_mbs = c->mb_rows * c->mb_cols;
+
+        prob_skip_false = (total_mbs - cpi->mb.skip_true_count ) * 256 / total_mbs;
+
+        if (prob_skip_false <= 1)
+            prob_skip_false = 1;
+
+        if (prob_skip_false >= 255)
+            prob_skip_false = 255;
+
+        cpi->prob_skip_false = prob_skip_false;
+        vp8_write_literal(bc, prob_skip_false, 8);
+    }
+
+    while (++mb_row < c->mb_rows)
+    {
+        int mb_col = -1;
+
+        while (++mb_col < c->mb_cols)
+        {
+            const int ym = m->mbmi.mode;
+
+            if (cpi->mb.e_mbd.update_mb_segmentation_map)
+                write_mb_features(bc, &m->mbmi, &cpi->mb.e_mbd);
+
+            if (c->mb_no_coeff_skip)
+                vp8_encode_bool(bc, m->mbmi.mb_skip_coeff, prob_skip_false);
+
+            kfwrite_ymode(bc, ym, vp8_kf_ymode_prob);
+
+            if (ym == B_PRED)
+            {
+                const int mis = c->mode_info_stride;
+                int i = 0;
+
+                do
+                {
+                    const B_PREDICTION_MODE A = above_block_mode(m, i, mis);
+                    const B_PREDICTION_MODE L = left_block_mode(m, i);
+                    const int bm = m->bmi[i].as_mode;
+
+#ifdef VP8_ENTROPY_STATS
+                    ++intra_mode_stats [A] [L] [bm];
+#endif
+
+                    write_bmode(bc, bm, vp8_kf_bmode_prob [A] [L]);
+                }
+                while (++i < 16);
+            }
+
+            write_uv_mode(bc, (m++)->mbmi.uv_mode, vp8_kf_uv_mode_prob);
+        }
+
+        m++;    /* skip L prediction border */
+    }
+}
+
+#if 0
+/* This function is used for debugging probability trees. */
+static void print_prob_tree(vp8_prob
+     coef_probs[BLOCK_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES])
+{
+    /* print coef probability tree */
+    int i,j,k,l;
+    FILE* f = fopen("enc_tree_probs.txt", "a");
+    fprintf(f, "{\n");
+    for (i = 0; i < BLOCK_TYPES; i++)
+    {
+        fprintf(f, "  {\n");
+        for (j = 0; j < COEF_BANDS; j++)
+        {
+            fprintf(f, "    {\n");
+            for (k = 0; k < PREV_COEF_CONTEXTS; k++)
+            {
+                fprintf(f, "      {");
+                for (l = 0; l < ENTROPY_NODES; l++)
+                {
+                    fprintf(f, "%3u, ",
+                            (unsigned int)(coef_probs [i][j][k][l]));
+                }
+                fprintf(f, " }\n");
+            }
+            fprintf(f, "    }\n");
+        }
+        fprintf(f, "  }\n");
+    }
+    fprintf(f, "}\n");
+    fclose(f);
+}
+#endif
+
+static void sum_probs_over_prev_coef_context(
+        const unsigned int probs[PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS],
+        unsigned int* out)
+{
+    int i, j;
+    for (i=0; i < MAX_ENTROPY_TOKENS; ++i)
+    {
+        for (j=0; j < PREV_COEF_CONTEXTS; ++j)
+        {
+            const unsigned int tmp = out[i];
+            out[i] += probs[j][i];
+            /* check for wrap */
+            if (out[i] < tmp)
+                out[i] = UINT_MAX;
+        }
+    }
+}
+
+static int prob_update_savings(const unsigned int *ct,
+                                   const vp8_prob oldp, const vp8_prob newp,
+                                   const vp8_prob upd)
+{
+    const int old_b = vp8_cost_branch(ct, oldp);
+    const int new_b = vp8_cost_branch(ct, newp);
+    const int update_b = 8 +
+                         ((vp8_cost_one(upd) - vp8_cost_zero(upd)) >> 8);
+
+    return old_b - new_b - update_b;
+}
+
+static int independent_coef_context_savings(VP8_COMP *cpi)
+{
+    MACROBLOCK *const x = & cpi->mb;
+    int savings = 0;
+    int i = 0;
+    do
+    {
+        int j = 0;
+        do
+        {
+            int k = 0;
+            unsigned int prev_coef_count_sum[MAX_ENTROPY_TOKENS] = {0};
+            int prev_coef_savings[MAX_ENTROPY_TOKENS] = {0};
+            const unsigned int (*probs)[MAX_ENTROPY_TOKENS];
+            /* Calculate new probabilities given the constraint that
+             * they must be equal over the prev coef contexts
+             */
+
+            probs = (const unsigned int (*)[MAX_ENTROPY_TOKENS])
+                x->coef_counts[i][j];
+
+            /* Reset to default probabilities at key frames */
+            if (cpi->common.frame_type == KEY_FRAME)
+                probs = default_coef_counts[i][j];
+
+            sum_probs_over_prev_coef_context(probs, prev_coef_count_sum);
+
+            do
+            {
+                /* at every context */
+
+                /* calc probs and branch cts for this frame only */
+                int t = 0;      /* token/prob index */
+
+                vp8_tree_probs_from_distribution(
+                    MAX_ENTROPY_TOKENS, vp8_coef_encodings, vp8_coef_tree,
+                    cpi->frame_coef_probs[i][j][k],
+                    cpi->frame_branch_ct [i][j][k],
+                    prev_coef_count_sum,
+                    256, 1);
+
+                do
+                {
+                    const unsigned int *ct  = cpi->frame_branch_ct [i][j][k][t];
+                    const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t];
+                    const vp8_prob oldp = cpi->common.fc.coef_probs [i][j][k][t];
+                    const vp8_prob upd = vp8_coef_update_probs [i][j][k][t];
+                    const int s = prob_update_savings(ct, oldp, newp, upd);
+
+                    if (cpi->common.frame_type != KEY_FRAME ||
+                        (cpi->common.frame_type == KEY_FRAME && newp != oldp))
+                        prev_coef_savings[t] += s;
+                }
+                while (++t < ENTROPY_NODES);
+            }
+            while (++k < PREV_COEF_CONTEXTS);
+            k = 0;
+            do
+            {
+                /* We only update probabilities if we can save bits, except
+                 * for key frames where we have to update all probabilities
+                 * to get the equal probabilities across the prev coef
+                 * contexts.
+                 */
+                if (prev_coef_savings[k] > 0 ||
+                    cpi->common.frame_type == KEY_FRAME)
+                    savings += prev_coef_savings[k];
+            }
+            while (++k < ENTROPY_NODES);
+        }
+        while (++j < COEF_BANDS);
+    }
+    while (++i < BLOCK_TYPES);
+    return savings;
+}
+
+static int default_coef_context_savings(VP8_COMP *cpi)
+{
+    MACROBLOCK *const x = & cpi->mb;
+    int savings = 0;
+    int i = 0;
+    do
+    {
+        int j = 0;
+        do
+        {
+            int k = 0;
+            do
+            {
+                /* at every context */
+
+                /* calc probs and branch cts for this frame only */
+                int t = 0;      /* token/prob index */
+
+                vp8_tree_probs_from_distribution(
+                    MAX_ENTROPY_TOKENS, vp8_coef_encodings, vp8_coef_tree,
+                    cpi->frame_coef_probs [i][j][k],
+                    cpi->frame_branch_ct [i][j][k],
+                    x->coef_counts [i][j][k],
+                    256, 1
+                );
+
+                do
+                {
+                    const unsigned int *ct  = cpi->frame_branch_ct [i][j][k][t];
+                    const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t];
+                    const vp8_prob oldp = cpi->common.fc.coef_probs [i][j][k][t];
+                    const vp8_prob upd = vp8_coef_update_probs [i][j][k][t];
+                    const int s = prob_update_savings(ct, oldp, newp, upd);
+
+                    if (s > 0)
+                    {
+                        savings += s;
+                    }
+                }
+                while (++t < ENTROPY_NODES);
+            }
+            while (++k < PREV_COEF_CONTEXTS);
+        }
+        while (++j < COEF_BANDS);
+    }
+    while (++i < BLOCK_TYPES);
+    return savings;
+}
+
+void vp8_calc_ref_frame_costs(int *ref_frame_cost,
+                              int prob_intra,
+                              int prob_last,
+                              int prob_garf
+                             )
+{
+    assert(prob_intra >= 0);
+    assert(prob_intra <= 255);
+    assert(prob_last >= 0);
+    assert(prob_last <= 255);
+    assert(prob_garf >= 0);
+    assert(prob_garf <= 255);
+    ref_frame_cost[INTRA_FRAME]   = vp8_cost_zero(prob_intra);
+    ref_frame_cost[LAST_FRAME]    = vp8_cost_one(prob_intra)
+                                    + vp8_cost_zero(prob_last);
+    ref_frame_cost[GOLDEN_FRAME]  = vp8_cost_one(prob_intra)
+                                    + vp8_cost_one(prob_last)
+                                    + vp8_cost_zero(prob_garf);
+    ref_frame_cost[ALTREF_FRAME]  = vp8_cost_one(prob_intra)
+                                    + vp8_cost_one(prob_last)
+                                    + vp8_cost_one(prob_garf);
+
+}
+
+int vp8_estimate_entropy_savings(VP8_COMP *cpi)
+{
+    int savings = 0;
+
+    const int *const rfct = cpi->mb.count_mb_ref_frame_usage;
+    const int rf_intra = rfct[INTRA_FRAME];
+    const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
+    int new_intra, new_last, new_garf, oldtotal, newtotal;
+    int ref_frame_cost[MAX_REF_FRAMES];
+
+    vp8_clear_system_state();
+
+    if (cpi->common.frame_type != KEY_FRAME)
+    {
+        if (!(new_intra = rf_intra * 255 / (rf_intra + rf_inter)))
+            new_intra = 1;
+
+        new_last = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128;
+
+        new_garf = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME])
+                  ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128;
+
+
+        vp8_calc_ref_frame_costs(ref_frame_cost,new_intra,new_last,new_garf);
+
+        newtotal =
+            rfct[INTRA_FRAME] * ref_frame_cost[INTRA_FRAME] +
+            rfct[LAST_FRAME] * ref_frame_cost[LAST_FRAME] +
+            rfct[GOLDEN_FRAME] * ref_frame_cost[GOLDEN_FRAME] +
+            rfct[ALTREF_FRAME] * ref_frame_cost[ALTREF_FRAME];
+
+
+        /* old costs */
+        vp8_calc_ref_frame_costs(ref_frame_cost,cpi->prob_intra_coded,
+                                 cpi->prob_last_coded,cpi->prob_gf_coded);
+
+        oldtotal =
+            rfct[INTRA_FRAME] * ref_frame_cost[INTRA_FRAME] +
+            rfct[LAST_FRAME] * ref_frame_cost[LAST_FRAME] +
+            rfct[GOLDEN_FRAME] * ref_frame_cost[GOLDEN_FRAME] +
+            rfct[ALTREF_FRAME] * ref_frame_cost[ALTREF_FRAME];
+
+        savings += (oldtotal - newtotal) / 256;
+    }
+
+
+    if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS)
+        savings += independent_coef_context_savings(cpi);
+    else
+        savings += default_coef_context_savings(cpi);
+
+
+    return savings;
+}
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+int vp8_update_coef_context(VP8_COMP *cpi)
+{
+    int savings = 0;
+
+
+    if (cpi->common.frame_type == KEY_FRAME)
+    {
+        /* Reset to default counts/probabilities at key frames */
+        vp8_copy(cpi->mb.coef_counts, default_coef_counts);
+    }
+
+    if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS)
+        savings += independent_coef_context_savings(cpi);
+    else
+        savings += default_coef_context_savings(cpi);
+
+    return savings;
+}
+#endif
+
+void vp8_update_coef_probs(VP8_COMP *cpi)
+{
+    int i = 0;
+#if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    vp8_writer *const w = cpi->bc;
+#endif
+    int savings = 0;
+
+    vp8_clear_system_state();
+
+    do
+    {
+        int j = 0;
+
+        do
+        {
+            int k = 0;
+            int prev_coef_savings[ENTROPY_NODES] = {0};
+            if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS)
+            {
+                for (k = 0; k < PREV_COEF_CONTEXTS; ++k)
+                {
+                    int t;      /* token/prob index */
+                    for (t = 0; t < ENTROPY_NODES; ++t)
+                    {
+                        const unsigned int *ct = cpi->frame_branch_ct [i][j]
+                                                                      [k][t];
+                        const vp8_prob newp = cpi->frame_coef_probs[i][j][k][t];
+                        const vp8_prob oldp = cpi->common.fc.coef_probs[i][j]
+                                                                       [k][t];
+                        const vp8_prob upd = vp8_coef_update_probs[i][j][k][t];
+
+                        prev_coef_savings[t] +=
+                                prob_update_savings(ct, oldp, newp, upd);
+                    }
+                }
+                k = 0;
+            }
+            do
+            {
+                /* note: use result from vp8_estimate_entropy_savings, so no
+                 * need to call vp8_tree_probs_from_distribution here.
+                 */
+
+                /* at every context */
+
+                /* calc probs and branch cts for this frame only */
+                int t = 0;      /* token/prob index */
+
+                do
+                {
+                    const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t];
+
+                    vp8_prob *Pold = cpi->common.fc.coef_probs [i][j][k] + t;
+                    const vp8_prob upd = vp8_coef_update_probs [i][j][k][t];
+
+                    int s = prev_coef_savings[t];
+                    int u = 0;
+
+                    if (!(cpi->oxcf.error_resilient_mode &
+                            VPX_ERROR_RESILIENT_PARTITIONS))
+                    {
+                        s = prob_update_savings(
+                                cpi->frame_branch_ct [i][j][k][t],
+                                *Pold, newp, upd);
+                    }
+
+                    if (s > 0)
+                        u = 1;
+
+                    /* Force updates on key frames if the new is different,
+                     * so that we can be sure we end up with equal probabilities
+                     * over the prev coef contexts.
+                     */
+                    if ((cpi->oxcf.error_resilient_mode &
+                            VPX_ERROR_RESILIENT_PARTITIONS) &&
+                        cpi->common.frame_type == KEY_FRAME && newp != *Pold)
+                        u = 1;
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                    cpi->update_probs[i][j][k][t] = u;
+#else
+                    vp8_write(w, u, upd);
+#endif
+
+
+#ifdef VP8_ENTROPY_STATS
+                    ++ tree_update_hist [i][j][k][t] [u];
+#endif
+
+                    if (u)
+                    {
+                        /* send/use new probability */
+
+                        *Pold = newp;
+#if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+                        vp8_write_literal(w, newp, 8);
+#endif
+
+                        savings += s;
+
+                    }
+
+                }
+                while (++t < ENTROPY_NODES);
+
+                /* Accum token counts for generation of default statistics */
+#ifdef VP8_ENTROPY_STATS
+                t = 0;
+
+                do
+                {
+                    context_counters [i][j][k][t] += cpi->coef_counts [i][j][k][t];
+                }
+                while (++t < MAX_ENTROPY_TOKENS);
+
+#endif
+
+            }
+            while (++k < PREV_COEF_CONTEXTS);
+        }
+        while (++j < COEF_BANDS);
+    }
+    while (++i < BLOCK_TYPES);
+
+}
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+static void pack_coef_probs(VP8_COMP *cpi)
+{
+    int i = 0;
+    vp8_writer *const w = cpi->bc;
+
+    do
+    {
+        int j = 0;
+
+        do
+        {
+            int k = 0;
+
+            do
+            {
+                int t = 0;      /* token/prob index */
+
+                do
+                {
+                    const vp8_prob newp = cpi->common.fc.coef_probs [i][j][k][t];
+                    const vp8_prob upd = vp8_coef_update_probs [i][j][k][t];
+
+                    const char u = cpi->update_probs[i][j][k][t] ;
+
+                    vp8_write(w, u, upd);
+
+                    if (u)
+                    {
+                        /* send/use new probability */
+                        vp8_write_literal(w, newp, 8);
+                    }
+                }
+                while (++t < ENTROPY_NODES);
+            }
+            while (++k < PREV_COEF_CONTEXTS);
+        }
+        while (++j < COEF_BANDS);
+    }
+    while (++i < BLOCK_TYPES);
+}
+#endif
+
+#ifdef PACKET_TESTING
+FILE *vpxlogc = 0;
+#endif
+
+static void put_delta_q(vp8_writer *bc, int delta_q)
+{
+    if (delta_q != 0)
+    {
+        vp8_write_bit(bc, 1);
+        vp8_write_literal(bc, abs(delta_q), 4);
+
+        if (delta_q < 0)
+            vp8_write_bit(bc, 1);
+        else
+            vp8_write_bit(bc, 0);
+    }
+    else
+        vp8_write_bit(bc, 0);
+}
+
+void vp8_pack_bitstream(VP8_COMP *cpi, unsigned char *dest, unsigned char * dest_end, unsigned long *size)
+{
+    int i, j;
+    VP8_HEADER oh;
+    VP8_COMMON *const pc = & cpi->common;
+    vp8_writer *const bc = cpi->bc;
+    MACROBLOCKD *const xd = & cpi->mb.e_mbd;
+    int extra_bytes_packed = 0;
+
+    unsigned char *cx_data = dest;
+    unsigned char *cx_data_end = dest_end;
+    const int *mb_feature_data_bits;
+
+    oh.show_frame = (int) pc->show_frame;
+    oh.type = (int)pc->frame_type;
+    oh.version = pc->version;
+    oh.first_partition_length_in_bytes = 0;
+
+    mb_feature_data_bits = vp8_mb_feature_data_bits;
+
+    bc[0].error = &pc->error;
+
+    validate_buffer(cx_data, 3, cx_data_end, &cpi->common.error);
+    cx_data += 3;
+
+#if defined(SECTIONBITS_OUTPUT)
+    Sectionbits[active_section = 1] += sizeof(VP8_HEADER) * 8 * 256;
+#endif
+
+    /* every keyframe send startcode, width, height, scale factor, clamp
+     * and color type
+     */
+    if (oh.type == KEY_FRAME)
+    {
+        int v;
+
+        validate_buffer(cx_data, 7, cx_data_end, &cpi->common.error);
+
+        /* Start / synch code */
+        cx_data[0] = 0x9D;
+        cx_data[1] = 0x01;
+        cx_data[2] = 0x2a;
+
+        v = (pc->horiz_scale << 14) | pc->Width;
+        cx_data[3] = v;
+        cx_data[4] = v >> 8;
+
+        v = (pc->vert_scale << 14) | pc->Height;
+        cx_data[5] = v;
+        cx_data[6] = v >> 8;
+
+
+        extra_bytes_packed = 7;
+        cx_data += extra_bytes_packed ;
+
+        vp8_start_encode(bc, cx_data, cx_data_end);
+
+        /* signal clr type */
+        vp8_write_bit(bc, 0);
+        vp8_write_bit(bc, pc->clamp_type);
+
+    }
+    else
+        vp8_start_encode(bc, cx_data, cx_data_end);
+
+
+    /* Signal whether or not Segmentation is enabled */
+    vp8_write_bit(bc, xd->segmentation_enabled);
+
+    /*  Indicate which features are enabled */
+    if (xd->segmentation_enabled)
+    {
+        /* Signal whether or not the segmentation map is being updated. */
+        vp8_write_bit(bc, xd->update_mb_segmentation_map);
+        vp8_write_bit(bc, xd->update_mb_segmentation_data);
+
+        if (xd->update_mb_segmentation_data)
+        {
+            signed char Data;
+
+            vp8_write_bit(bc, xd->mb_segement_abs_delta);
+
+            /* For each segmentation feature (Quant and loop filter level) */
+            for (i = 0; i < MB_LVL_MAX; i++)
+            {
+                /* For each of the segments */
+                for (j = 0; j < MAX_MB_SEGMENTS; j++)
+                {
+                    Data = xd->segment_feature_data[i][j];
+
+                    /* Frame level data */
+                    if (Data)
+                    {
+                        vp8_write_bit(bc, 1);
+
+                        if (Data < 0)
+                        {
+                            Data = - Data;
+                            vp8_write_literal(bc, Data, mb_feature_data_bits[i]);
+                            vp8_write_bit(bc, 1);
+                        }
+                        else
+                        {
+                            vp8_write_literal(bc, Data, mb_feature_data_bits[i]);
+                            vp8_write_bit(bc, 0);
+                        }
+                    }
+                    else
+                        vp8_write_bit(bc, 0);
+                }
+            }
+        }
+
+        if (xd->update_mb_segmentation_map)
+        {
+            /* Write the probs used to decode the segment id for each mb */
+            for (i = 0; i < MB_FEATURE_TREE_PROBS; i++)
+            {
+                int Data = xd->mb_segment_tree_probs[i];
+
+                if (Data != 255)
+                {
+                    vp8_write_bit(bc, 1);
+                    vp8_write_literal(bc, Data, 8);
+                }
+                else
+                    vp8_write_bit(bc, 0);
+            }
+        }
+    }
+
+    vp8_write_bit(bc, pc->filter_type);
+    vp8_write_literal(bc, pc->filter_level, 6);
+    vp8_write_literal(bc, pc->sharpness_level, 3);
+
+    /* Write out loop filter deltas applied at the MB level based on mode
+     * or ref frame (if they are enabled).
+     */
+    vp8_write_bit(bc, xd->mode_ref_lf_delta_enabled);
+
+    if (xd->mode_ref_lf_delta_enabled)
+    {
+        /* Do the deltas need to be updated */
+        int send_update = xd->mode_ref_lf_delta_update
+                          || cpi->oxcf.error_resilient_mode;
+
+        vp8_write_bit(bc, send_update);
+        if (send_update)
+        {
+            int Data;
+
+            /* Send update */
+            for (i = 0; i < MAX_REF_LF_DELTAS; i++)
+            {
+                Data = xd->ref_lf_deltas[i];
+
+                /* Frame level data */
+                if (xd->ref_lf_deltas[i] != xd->last_ref_lf_deltas[i]
+                    || cpi->oxcf.error_resilient_mode)
+                {
+                    xd->last_ref_lf_deltas[i] = xd->ref_lf_deltas[i];
+                    vp8_write_bit(bc, 1);
+
+                    if (Data > 0)
+                    {
+                        vp8_write_literal(bc, (Data & 0x3F), 6);
+                        vp8_write_bit(bc, 0);    /* sign */
+                    }
+                    else
+                    {
+                        Data = -Data;
+                        vp8_write_literal(bc, (Data & 0x3F), 6);
+                        vp8_write_bit(bc, 1);    /* sign */
+                    }
+                }
+                else
+                    vp8_write_bit(bc, 0);
+            }
+
+            /* Send update */
+            for (i = 0; i < MAX_MODE_LF_DELTAS; i++)
+            {
+                Data = xd->mode_lf_deltas[i];
+
+                if (xd->mode_lf_deltas[i] != xd->last_mode_lf_deltas[i]
+                    || cpi->oxcf.error_resilient_mode)
+                {
+                    xd->last_mode_lf_deltas[i] = xd->mode_lf_deltas[i];
+                    vp8_write_bit(bc, 1);
+
+                    if (Data > 0)
+                    {
+                        vp8_write_literal(bc, (Data & 0x3F), 6);
+                        vp8_write_bit(bc, 0);    /* sign */
+                    }
+                    else
+                    {
+                        Data = -Data;
+                        vp8_write_literal(bc, (Data & 0x3F), 6);
+                        vp8_write_bit(bc, 1);    /* sign */
+                    }
+                }
+                else
+                    vp8_write_bit(bc, 0);
+            }
+        }
+    }
+
+    /* signal here is multi token partition is enabled */
+    vp8_write_literal(bc, pc->multi_token_partition, 2);
+
+    /* Frame Qbaseline quantizer index */
+    vp8_write_literal(bc, pc->base_qindex, 7);
+
+    /* Transmit Dc, Second order and Uv quantizer delta information */
+    put_delta_q(bc, pc->y1dc_delta_q);
+    put_delta_q(bc, pc->y2dc_delta_q);
+    put_delta_q(bc, pc->y2ac_delta_q);
+    put_delta_q(bc, pc->uvdc_delta_q);
+    put_delta_q(bc, pc->uvac_delta_q);
+
+    /* When there is a key frame all reference buffers are updated using
+     * the new key frame
+     */
+    if (pc->frame_type != KEY_FRAME)
+    {
+        /* Should the GF or ARF be updated using the transmitted frame
+         * or buffer
+         */
+        vp8_write_bit(bc, pc->refresh_golden_frame);
+        vp8_write_bit(bc, pc->refresh_alt_ref_frame);
+
+        /* If not being updated from current frame should either GF or ARF
+         * be updated from another buffer
+         */
+        if (!pc->refresh_golden_frame)
+            vp8_write_literal(bc, pc->copy_buffer_to_gf, 2);
+
+        if (!pc->refresh_alt_ref_frame)
+            vp8_write_literal(bc, pc->copy_buffer_to_arf, 2);
+
+        /* Indicate reference frame sign bias for Golden and ARF frames
+         * (always 0 for last frame buffer)
+         */
+        vp8_write_bit(bc, pc->ref_frame_sign_bias[GOLDEN_FRAME]);
+        vp8_write_bit(bc, pc->ref_frame_sign_bias[ALTREF_FRAME]);
+    }
+
+#if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS)
+    {
+        if (pc->frame_type == KEY_FRAME)
+            pc->refresh_entropy_probs = 1;
+        else
+            pc->refresh_entropy_probs = 0;
+    }
+#endif
+
+    vp8_write_bit(bc, pc->refresh_entropy_probs);
+
+    if (pc->frame_type != KEY_FRAME)
+        vp8_write_bit(bc, pc->refresh_last_frame);
+
+#ifdef VP8_ENTROPY_STATS
+
+    if (pc->frame_type == INTER_FRAME)
+        active_section = 0;
+    else
+        active_section = 7;
+
+#endif
+
+    vp8_clear_system_state();
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+    pack_coef_probs(cpi);
+#else
+    if (pc->refresh_entropy_probs == 0)
+    {
+        /* save a copy for later refresh */
+        memcpy(&cpi->common.lfc, &cpi->common.fc, sizeof(cpi->common.fc));
+    }
+
+    vp8_update_coef_probs(cpi);
+#endif
+
+#ifdef VP8_ENTROPY_STATS
+    active_section = 2;
+#endif
+
+    /* Write out the mb_no_coeff_skip flag */
+    vp8_write_bit(bc, pc->mb_no_coeff_skip);
+
+    if (pc->frame_type == KEY_FRAME)
+    {
+        write_kfmodes(cpi);
+
+#ifdef VP8_ENTROPY_STATS
+        active_section = 8;
+#endif
+    }
+    else
+    {
+        pack_inter_mode_mvs(cpi);
+
+#ifdef VP8_ENTROPY_STATS
+        active_section = 1;
+#endif
+    }
+
+    vp8_stop_encode(bc);
+
+    cx_data += bc->pos;
+
+    oh.first_partition_length_in_bytes = cpi->bc->pos;
+
+    /* update frame tag */
+    {
+        int v = (oh.first_partition_length_in_bytes << 5) |
+                (oh.show_frame << 4) |
+                (oh.version << 1) |
+                oh.type;
+
+        dest[0] = v;
+        dest[1] = v >> 8;
+        dest[2] = v >> 16;
+    }
+
+    *size = VP8_HEADER_SIZE + extra_bytes_packed + cpi->bc->pos;
+
+    cpi->partition_sz[0] = *size;
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+    {
+        const int num_part = (1 << pc->multi_token_partition);
+        unsigned char * dp = cpi->partition_d[0] + cpi->partition_sz[0];
+
+        if (num_part > 1)
+        {
+            /* write token part sizes (all but last) if more than 1 */
+            validate_buffer(dp, 3 * (num_part - 1), cpi->partition_d_end[0],
+                            &pc->error);
+
+            cpi->partition_sz[0] += 3*(num_part-1);
+
+            for(i = 1; i < num_part; i++)
+            {
+                write_partition_size(dp, cpi->partition_sz[i]);
+                dp += 3;
+            }
+        }
+
+        if (!cpi->output_partition)
+        {
+            /* concatenate partition buffers */
+            for(i = 0; i < num_part; i++)
+            {
+                memmove(dp, cpi->partition_d[i+1], cpi->partition_sz[i+1]);
+                cpi->partition_d[i+1] = dp;
+                dp += cpi->partition_sz[i+1];
+            }
+        }
+
+        /* update total size */
+        *size = 0;
+        for(i = 0; i < num_part+1; i++)
+        {
+            *size += cpi->partition_sz[i];
+        }
+    }
+#else
+    if (pc->multi_token_partition != ONE_PARTITION)
+    {
+        int num_part = 1 << pc->multi_token_partition;
+
+        /* partition size table at the end of first partition */
+        cpi->partition_sz[0] += 3 * (num_part - 1);
+        *size += 3 * (num_part - 1);
+
+        validate_buffer(cx_data, 3 * (num_part - 1), cx_data_end,
+                        &pc->error);
+
+        for(i = 1; i < num_part + 1; i++)
+        {
+            cpi->bc[i].error = &pc->error;
+        }
+
+        pack_tokens_into_partitions(cpi, cx_data + 3 * (num_part - 1),
+                                    cx_data_end, num_part);
+
+        for(i = 1; i < num_part; i++)
+        {
+            cpi->partition_sz[i] = cpi->bc[i].pos;
+            write_partition_size(cx_data, cpi->partition_sz[i]);
+            cx_data += 3;
+            *size += cpi->partition_sz[i]; /* add to total */
+        }
+
+        /* add last partition to total size */
+        cpi->partition_sz[i] = cpi->bc[i].pos;
+        *size += cpi->partition_sz[i];
+    }
+    else
+    {
+        bc[1].error = &pc->error;
+
+        vp8_start_encode(&cpi->bc[1], cx_data, cx_data_end);
+
+#if CONFIG_MULTITHREAD
+        if (cpi->b_multi_threaded)
+            pack_mb_row_tokens(cpi, &cpi->bc[1]);
+        else
+#endif
+            vp8_pack_tokens(&cpi->bc[1], cpi->tok, cpi->tok_count);
+
+        vp8_stop_encode(&cpi->bc[1]);
+
+        *size += cpi->bc[1].pos;
+        cpi->partition_sz[1] = cpi->bc[1].pos;
+    }
+#endif
+}
+
+#ifdef VP8_ENTROPY_STATS
+void print_tree_update_probs()
+{
+    int i, j, k, l;
+    FILE *f = fopen("context.c", "a");
+    int Sum;
+    fprintf(f, "\n/* Update probabilities for token entropy tree. */\n\n");
+    fprintf(f, "const vp8_prob tree_update_probs[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES] = {\n");
+
+    for (i = 0; i < BLOCK_TYPES; i++)
+    {
+        fprintf(f, "  { \n");
+
+        for (j = 0; j < COEF_BANDS; j++)
+        {
+            fprintf(f, "    {\n");
+
+            for (k = 0; k < PREV_COEF_CONTEXTS; k++)
+            {
+                fprintf(f, "      {");
+
+                for (l = 0; l < ENTROPY_NODES; l++)
+                {
+                    Sum = tree_update_hist[i][j][k][l][0] + tree_update_hist[i][j][k][l][1];
+
+                    if (Sum > 0)
+                    {
+                        if (((tree_update_hist[i][j][k][l][0] * 255) / Sum) > 0)
+                            fprintf(f, "%3ld, ", (tree_update_hist[i][j][k][l][0] * 255) / Sum);
+                        else
+                            fprintf(f, "%3ld, ", 1);
+                    }
+                    else
+                        fprintf(f, "%3ld, ", 128);
+                }
+
+                fprintf(f, "},\n");
+            }
+
+            fprintf(f, "    },\n");
+        }
+
+        fprintf(f, "  },\n");
+    }
+
+    fprintf(f, "};\n");
+    fclose(f);
+}
+#endif
diff --git a/media/libvpx/vp8/encoder/bitstream.h b/media/libvpx/vp8/encoder/bitstream.h
new file mode 100644
index 000000000..de6980551
--- /dev/null
+++ b/media/libvpx/vp8/encoder/bitstream.h
@@ -0,0 +1,25 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_BITSTREAM_H_
+#define VP8_ENCODER_BITSTREAM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_pack_tokens(vp8_writer *w, const TOKENEXTRA *p, int xcount);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_BITSTREAM_H_
diff --git a/media/libvpx/vp8/encoder/block.h b/media/libvpx/vp8/encoder/block.h
new file mode 100644
index 000000000..b15da015f
--- /dev/null
+++ b/media/libvpx/vp8/encoder/block.h
@@ -0,0 +1,176 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_BLOCK_H_
+#define VP8_ENCODER_BLOCK_H_
+
+#include "vp8/common/onyx.h"
+#include "vp8/common/blockd.h"
+#include "vp8/common/entropymv.h"
+#include "vp8/common/entropy.h"
+#include "vpx_ports/mem.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MAX_MODES 20
+#define MAX_ERROR_BINS 1024
+
+/* motion search site */
+typedef struct
+{
+    MV mv;
+    int offset;
+} search_site;
+
+typedef struct block
+{
+    /* 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries */
+    short *src_diff;
+    short *coeff;
+
+    /* 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries */
+    short *quant;
+    short *quant_fast;
+    short *quant_shift;
+    short *zbin;
+    short *zrun_zbin_boost;
+    short *round;
+
+    /* Zbin Over Quant value */
+    short zbin_extra;
+
+    unsigned char **base_src;
+    int src;
+    int src_stride;
+} BLOCK;
+
+typedef struct
+{
+    int count;
+    struct
+    {
+        B_PREDICTION_MODE mode;
+        int_mv mv;
+    } bmi[16];
+} PARTITION_INFO;
+
+typedef struct macroblock
+{
+    DECLARE_ALIGNED(16, short, src_diff[400]); /* 25 blocks Y,U,V,Y2 */
+    DECLARE_ALIGNED(16, short, coeff[400]); /* 25 blocks Y,U,V,Y2 */
+    DECLARE_ALIGNED(16, unsigned char, thismb[256]);
+
+    unsigned char *thismb_ptr;
+    /* 16 Y, 4 U, 4 V, 1 DC 2nd order block */
+    BLOCK block[25];
+
+    YV12_BUFFER_CONFIG src;
+
+    MACROBLOCKD e_mbd;
+    PARTITION_INFO *partition_info; /* work pointer */
+    PARTITION_INFO *pi;   /* Corresponds to upper left visible macroblock */
+    PARTITION_INFO *pip;  /* Base of allocated array */
+
+    int ref_frame_cost[MAX_REF_FRAMES];
+
+    search_site *ss;
+    int ss_count;
+    int searches_per_step;
+
+    int errorperbit;
+    int sadperbit16;
+    int sadperbit4;
+    int rddiv;
+    int rdmult;
+    unsigned int * mb_activity_ptr;
+    int * mb_norm_activity_ptr;
+    signed int act_zbin_adj;
+    signed int last_act_zbin_adj;
+
+    int *mvcost[2];
+    /* MSVC generates code that thinks this is 16-byte aligned */
+    DECLARE_ALIGNED(16, int*, mvsadcost[2]);
+    int (*mbmode_cost)[MB_MODE_COUNT];
+    int (*intra_uv_mode_cost)[MB_MODE_COUNT];
+    int (*bmode_costs)[10][10];
+    int *inter_bmode_costs;
+    int (*token_costs)[COEF_BANDS][PREV_COEF_CONTEXTS]
+    [MAX_ENTROPY_TOKENS];
+
+    /* These define limits to motion vector components to prevent
+     * them from extending outside the UMV borders.
+     */
+    int mv_col_min;
+    int mv_col_max;
+    int mv_row_min;
+    int mv_row_max;
+
+    int skip;
+
+    unsigned int encode_breakout;
+
+    signed char *gf_active_ptr;
+
+    unsigned char *active_ptr;
+    MV_CONTEXT *mvc;
+
+    int optimize;
+    int q_index;
+    int is_skin;
+    int denoise_zeromv;
+
+#if CONFIG_TEMPORAL_DENOISING
+    int increase_denoising;
+    MB_PREDICTION_MODE best_sse_inter_mode;
+    int_mv best_sse_mv;
+    MV_REFERENCE_FRAME best_reference_frame;
+    MV_REFERENCE_FRAME best_zeromv_reference_frame;
+    unsigned char need_to_clamp_best_mvs;
+#endif
+
+    int skip_true_count;
+    unsigned int coef_counts [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];
+    unsigned int MVcount [2] [MVvals];  /* (row,col) MV cts this frame */
+    int ymode_count [VP8_YMODES];        /* intra MB type cts this frame */
+    int uv_mode_count[VP8_UV_MODES];     /* intra MB type cts this frame */
+    int64_t prediction_error;
+    int64_t intra_error;
+    int count_mb_ref_frame_usage[MAX_REF_FRAMES];
+
+    int rd_thresh_mult[MAX_MODES];
+    int rd_threshes[MAX_MODES];
+    unsigned int mbs_tested_so_far;
+    unsigned int mode_test_hit_counts[MAX_MODES];
+    int zbin_mode_boost_enabled;
+    int zbin_mode_boost;
+    int last_zbin_mode_boost;
+
+    int last_zbin_over_quant;
+    int zbin_over_quant;
+    int error_bins[MAX_ERROR_BINS];
+
+    void (*short_fdct4x4)(short *input, short *output, int pitch);
+    void (*short_fdct8x4)(short *input, short *output, int pitch);
+    void (*short_walsh4x4)(short *input, short *output, int pitch);
+    void (*quantize_b)(BLOCK *b, BLOCKD *d);
+
+    unsigned int mbs_zero_last_dot_suppress;
+    int zero_last_dot_suppress;
+} MACROBLOCK;
+
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_BLOCK_H_
diff --git a/media/libvpx/vp8/encoder/boolhuff.c b/media/libvpx/vp8/encoder/boolhuff.c
new file mode 100644
index 000000000..3b0c03a14
--- /dev/null
+++ b/media/libvpx/vp8/encoder/boolhuff.c
@@ -0,0 +1,70 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "boolhuff.h"
+
+#if defined(SECTIONBITS_OUTPUT)
+unsigned __int64 Sectionbits[500];
+
+#endif
+
+#ifdef VP8_ENTROPY_STATS
+unsigned int active_section = 0;
+#endif
+
+const unsigned int vp8_prob_cost[256] =
+{
+    2047, 2047, 1791, 1641, 1535, 1452, 1385, 1328, 1279, 1235, 1196, 1161, 1129, 1099, 1072, 1046,
+    1023, 1000,  979,  959,  940,  922,  905,  889,  873,  858,  843,  829,  816,  803,  790,  778,
+    767,  755,  744,  733,  723,  713,  703,  693,  684,  675,  666,  657,  649,  641,  633,  625,
+    617,  609,  602,  594,  587,  580,  573,  567,  560,  553,  547,  541,  534,  528,  522,  516,
+    511,  505,  499,  494,  488,  483,  477,  472,  467,  462,  457,  452,  447,  442,  437,  433,
+    428,  424,  419,  415,  410,  406,  401,  397,  393,  389,  385,  381,  377,  373,  369,  365,
+    361,  357,  353,  349,  346,  342,  338,  335,  331,  328,  324,  321,  317,  314,  311,  307,
+    304,  301,  297,  294,  291,  288,  285,  281,  278,  275,  272,  269,  266,  263,  260,  257,
+    255,  252,  249,  246,  243,  240,  238,  235,  232,  229,  227,  224,  221,  219,  216,  214,
+    211,  208,  206,  203,  201,  198,  196,  194,  191,  189,  186,  184,  181,  179,  177,  174,
+    172,  170,  168,  165,  163,  161,  159,  156,  154,  152,  150,  148,  145,  143,  141,  139,
+    137,  135,  133,  131,  129,  127,  125,  123,  121,  119,  117,  115,  113,  111,  109,  107,
+    105,  103,  101,   99,   97,   95,   93,   92,   90,   88,   86,   84,   82,   81,   79,   77,
+    75,   73,   72,   70,   68,   66,   65,   63,   61,   60,   58,   56,   55,   53,   51,   50,
+    48,   46,   45,   43,   41,   40,   38,   37,   35,   33,   32,   30,   29,   27,   25,   24,
+    22,   21,   19,   18,   16,   15,   13,   12,   10,    9,    7,    6,    4,    3,    1,   1
+};
+
+void vp8_start_encode(BOOL_CODER *br, unsigned char *source, unsigned char *source_end)
+{
+
+    br->lowvalue   = 0;
+    br->range      = 255;
+    br->count      = -24;
+    br->buffer     = source;
+    br->buffer_end = source_end;
+    br->pos        = 0;
+}
+
+void vp8_stop_encode(BOOL_CODER *br)
+{
+    int i;
+
+    for (i = 0; i < 32; i++)
+        vp8_encode_bool(br, 0, 128);
+}
+
+
+void vp8_encode_value(BOOL_CODER *br, int data, int bits)
+{
+    int bit;
+
+    for (bit = bits - 1; bit >= 0; bit--)
+        vp8_encode_bool(br, (1 & (data >> bit)), 0x80);
+
+}
diff --git a/media/libvpx/vp8/encoder/boolhuff.h b/media/libvpx/vp8/encoder/boolhuff.h
new file mode 100644
index 000000000..7c012a829
--- /dev/null
+++ b/media/libvpx/vp8/encoder/boolhuff.h
@@ -0,0 +1,132 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+/****************************************************************************
+*
+*   Module Title :     boolhuff.h
+*
+*   Description  :     Bool Coder header file.
+*
+****************************************************************************/
+#ifndef VP8_ENCODER_BOOLHUFF_H_
+#define VP8_ENCODER_BOOLHUFF_H_
+
+#include "vpx_ports/mem.h"
+#include "vpx/internal/vpx_codec_internal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct
+{
+    unsigned int lowvalue;
+    unsigned int range;
+    int count;
+    unsigned int pos;
+    unsigned char *buffer;
+    unsigned char *buffer_end;
+    struct vpx_internal_error_info *error;
+} BOOL_CODER;
+
+extern void vp8_start_encode(BOOL_CODER *bc, unsigned char *buffer, unsigned char *buffer_end);
+
+extern void vp8_encode_value(BOOL_CODER *br, int data, int bits);
+extern void vp8_stop_encode(BOOL_CODER *bc);
+extern const unsigned int vp8_prob_cost[256];
+
+
+DECLARE_ALIGNED(16, extern const unsigned char, vp8_norm[256]);
+
+static int validate_buffer(const unsigned char *start,
+                           size_t               len,
+                           const unsigned char *end,
+                           struct vpx_internal_error_info *error)
+{
+    if (start + len > start && start + len < end)
+        return 1;
+    else
+        vpx_internal_error(error, VPX_CODEC_CORRUPT_FRAME,
+            "Truncated packet or corrupt partition ");
+
+    return 0;
+}
+static void vp8_encode_bool(BOOL_CODER *br, int bit, int probability)
+{
+    unsigned int split;
+    int count = br->count;
+    unsigned int range = br->range;
+    unsigned int lowvalue = br->lowvalue;
+    register unsigned int shift;
+
+#ifdef VP8_ENTROPY_STATS
+#if defined(SECTIONBITS_OUTPUT)
+
+    if (bit)
+        Sectionbits[active_section] += vp8_prob_cost[255-probability];
+    else
+        Sectionbits[active_section] += vp8_prob_cost[probability];
+
+#endif
+#endif
+
+    split = 1 + (((range - 1) * probability) >> 8);
+
+    range = split;
+
+    if (bit)
+    {
+        lowvalue += split;
+        range = br->range - split;
+    }
+
+    shift = vp8_norm[range];
+
+    range <<= shift;
+    count += shift;
+
+    if (count >= 0)
+    {
+        int offset = shift - count;
+
+        if ((lowvalue << (offset - 1)) & 0x80000000)
+        {
+            int x = br->pos - 1;
+
+            while (x >= 0 && br->buffer[x] == 0xff)
+            {
+                br->buffer[x] = (unsigned char)0;
+                x--;
+            }
+
+            br->buffer[x] += 1;
+        }
+
+        validate_buffer(br->buffer + br->pos, 1, br->buffer_end, br->error);
+        br->buffer[br->pos++] = (lowvalue >> (24 - offset));
+
+        lowvalue <<= offset;
+        shift = count;
+        lowvalue &= 0xffffff;
+        count -= 8 ;
+    }
+
+    lowvalue <<= shift;
+    br->count = count;
+    br->lowvalue = lowvalue;
+    br->range = range;
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_BOOLHUFF_H_
diff --git a/media/libvpx/vp8/encoder/dct.c b/media/libvpx/vp8/encoder/dct.c
new file mode 100644
index 000000000..0c7198d5d
--- /dev/null
+++ b/media/libvpx/vp8/encoder/dct.c
@@ -0,0 +1,118 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <math.h>
+
+#include "./vp8_rtcd.h"
+
+void vp8_short_fdct4x4_c(short *input, short *output, int pitch)
+{
+    int i;
+    int a1, b1, c1, d1;
+    short *ip = input;
+    short *op = output;
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ((ip[0] + ip[3]) * 8);
+        b1 = ((ip[1] + ip[2]) * 8);
+        c1 = ((ip[1] - ip[2]) * 8);
+        d1 = ((ip[0] - ip[3]) * 8);
+
+        op[0] = a1 + b1;
+        op[2] = a1 - b1;
+
+        op[1] = (c1 * 2217 + d1 * 5352 +  14500)>>12;
+        op[3] = (d1 * 2217 - c1 * 5352 +   7500)>>12;
+
+        ip += pitch / 2;
+        op += 4;
+
+    }
+    ip = output;
+    op = output;
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ip[0] + ip[12];
+        b1 = ip[4] + ip[8];
+        c1 = ip[4] - ip[8];
+        d1 = ip[0] - ip[12];
+
+        op[0]  = ( a1 + b1 + 7)>>4;
+        op[8]  = ( a1 - b1 + 7)>>4;
+
+        op[4]  =((c1 * 2217 + d1 * 5352 +  12000)>>16) + (d1!=0);
+        op[12] = (d1 * 2217 - c1 * 5352 +  51000)>>16;
+
+        ip++;
+        op++;
+    }
+}
+
+void vp8_short_fdct8x4_c(short *input, short *output, int pitch)
+{
+    vp8_short_fdct4x4_c(input,   output,    pitch);
+    vp8_short_fdct4x4_c(input + 4, output + 16, pitch);
+}
+
+void vp8_short_walsh4x4_c(short *input, short *output, int pitch)
+{
+    int i;
+    int a1, b1, c1, d1;
+    int a2, b2, c2, d2;
+    short *ip = input;
+    short *op = output;
+
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ((ip[0] + ip[2]) * 4);
+        d1 = ((ip[1] + ip[3]) * 4);
+        c1 = ((ip[1] - ip[3]) * 4);
+        b1 = ((ip[0] - ip[2]) * 4);
+
+        op[0] = a1 + d1 + (a1!=0);
+        op[1] = b1 + c1;
+        op[2] = b1 - c1;
+        op[3] = a1 - d1;
+        ip += pitch / 2;
+        op += 4;
+    }
+
+    ip = output;
+    op = output;
+
+    for (i = 0; i < 4; i++)
+    {
+        a1 = ip[0] + ip[8];
+        d1 = ip[4] + ip[12];
+        c1 = ip[4] - ip[12];
+        b1 = ip[0] - ip[8];
+
+        a2 = a1 + d1;
+        b2 = b1 + c1;
+        c2 = b1 - c1;
+        d2 = a1 - d1;
+
+        a2 += a2<0;
+        b2 += b2<0;
+        c2 += c2<0;
+        d2 += d2<0;
+
+        op[0] = (a2+3) >> 3;
+        op[4] = (b2+3) >> 3;
+        op[8] = (c2+3) >> 3;
+        op[12]= (d2+3) >> 3;
+
+        ip++;
+        op++;
+    }
+}
diff --git a/media/libvpx/vp8/encoder/dct_value_cost.h b/media/libvpx/vp8/encoder/dct_value_cost.h
new file mode 100644
index 000000000..1cd3eec84
--- /dev/null
+++ b/media/libvpx/vp8/encoder/dct_value_cost.h
@@ -0,0 +1,371 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_ENCODER_DCT_VALUE_COST_H_
+#define VP8_ENCODER_DCT_VALUE_COST_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Generated file, included by tokenize.c  */
+/* Values generated by fill_value_tokens() */
+
+static const short dct_value_cost[2048*2] =
+{
+    8285, 8277, 8267, 8259, 8253, 8245, 8226, 8218, 8212, 8204, 8194, 8186,
+    8180, 8172, 8150, 8142, 8136, 8128, 8118, 8110, 8104, 8096, 8077, 8069,
+    8063, 8055, 8045, 8037, 8031, 8023, 7997, 7989, 7983, 7975, 7965, 7957,
+    7951, 7943, 7924, 7916, 7910, 7902, 7892, 7884, 7878, 7870, 7848, 7840,
+    7834, 7826, 7816, 7808, 7802, 7794, 7775, 7767, 7761, 7753, 7743, 7735,
+    7729, 7721, 7923, 7915, 7909, 7901, 7891, 7883, 7877, 7869, 7850, 7842,
+    7836, 7828, 7818, 7810, 7804, 7796, 7774, 7766, 7760, 7752, 7742, 7734,
+    7728, 7720, 7701, 7693, 7687, 7679, 7669, 7661, 7655, 7647, 7621, 7613,
+    7607, 7599, 7589, 7581, 7575, 7567, 7548, 7540, 7534, 7526, 7516, 7508,
+    7502, 7494, 7472, 7464, 7458, 7450, 7440, 7432, 7426, 7418, 7399, 7391,
+    7385, 7377, 7367, 7359, 7353, 7345, 7479, 7471, 7465, 7457, 7447, 7439,
+    7433, 7425, 7406, 7398, 7392, 7384, 7374, 7366, 7360, 7352, 7330, 7322,
+    7316, 7308, 7298, 7290, 7284, 7276, 7257, 7249, 7243, 7235, 7225, 7217,
+    7211, 7203, 7177, 7169, 7163, 7155, 7145, 7137, 7131, 7123, 7104, 7096,
+    7090, 7082, 7072, 7064, 7058, 7050, 7028, 7020, 7014, 7006, 6996, 6988,
+    6982, 6974, 6955, 6947, 6941, 6933, 6923, 6915, 6909, 6901, 7632, 7624,
+    7618, 7610, 7600, 7592, 7586, 7578, 7559, 7551, 7545, 7537, 7527, 7519,
+    7513, 7505, 7483, 7475, 7469, 7461, 7451, 7443, 7437, 7429, 7410, 7402,
+    7396, 7388, 7378, 7370, 7364, 7356, 7330, 7322, 7316, 7308, 7298, 7290,
+    7284, 7276, 7257, 7249, 7243, 7235, 7225, 7217, 7211, 7203, 7181, 7173,
+    7167, 7159, 7149, 7141, 7135, 7127, 7108, 7100, 7094, 7086, 7076, 7068,
+    7062, 7054, 7188, 7180, 7174, 7166, 7156, 7148, 7142, 7134, 7115, 7107,
+    7101, 7093, 7083, 7075, 7069, 7061, 7039, 7031, 7025, 7017, 7007, 6999,
+    6993, 6985, 6966, 6958, 6952, 6944, 6934, 6926, 6920, 6912, 6886, 6878,
+    6872, 6864, 6854, 6846, 6840, 6832, 6813, 6805, 6799, 6791, 6781, 6773,
+    6767, 6759, 6737, 6729, 6723, 6715, 6705, 6697, 6691, 6683, 6664, 6656,
+    6650, 6642, 6632, 6624, 6618, 6610, 6812, 6804, 6798, 6790, 6780, 6772,
+    6766, 6758, 6739, 6731, 6725, 6717, 6707, 6699, 6693, 6685, 6663, 6655,
+    6649, 6641, 6631, 6623, 6617, 6609, 6590, 6582, 6576, 6568, 6558, 6550,
+    6544, 6536, 6510, 6502, 6496, 6488, 6478, 6470, 6464, 6456, 6437, 6429,
+    6423, 6415, 6405, 6397, 6391, 6383, 6361, 6353, 6347, 6339, 6329, 6321,
+    6315, 6307, 6288, 6280, 6274, 6266, 6256, 6248, 6242, 6234, 6368, 6360,
+    6354, 6346, 6336, 6328, 6322, 6314, 6295, 6287, 6281, 6273, 6263, 6255,
+    6249, 6241, 6219, 6211, 6205, 6197, 6187, 6179, 6173, 6165, 6146, 6138,
+    6132, 6124, 6114, 6106, 6100, 6092, 6066, 6058, 6052, 6044, 6034, 6026,
+    6020, 6012, 5993, 5985, 5979, 5971, 5961, 5953, 5947, 5939, 5917, 5909,
+    5903, 5895, 5885, 5877, 5871, 5863, 5844, 5836, 5830, 5822, 5812, 5804,
+    5798, 5790, 6697, 6689, 6683, 6675, 6665, 6657, 6651, 6643, 6624, 6616,
+    6610, 6602, 6592, 6584, 6578, 6570, 6548, 6540, 6534, 6526, 6516, 6508,
+    6502, 6494, 6475, 6467, 6461, 6453, 6443, 6435, 6429, 6421, 6395, 6387,
+    6381, 6373, 6363, 6355, 6349, 6341, 6322, 6314, 6308, 6300, 6290, 6282,
+    6276, 6268, 6246, 6238, 6232, 6224, 6214, 6206, 6200, 6192, 6173, 6165,
+    6159, 6151, 6141, 6133, 6127, 6119, 6253, 6245, 6239, 6231, 6221, 6213,
+    6207, 6199, 6180, 6172, 6166, 6158, 6148, 6140, 6134, 6126, 6104, 6096,
+    6090, 6082, 6072, 6064, 6058, 6050, 6031, 6023, 6017, 6009, 5999, 5991,
+    5985, 5977, 5951, 5943, 5937, 5929, 5919, 5911, 5905, 5897, 5878, 5870,
+    5864, 5856, 5846, 5838, 5832, 5824, 5802, 5794, 5788, 5780, 5770, 5762,
+    5756, 5748, 5729, 5721, 5715, 5707, 5697, 5689, 5683, 5675, 5877, 5869,
+    5863, 5855, 5845, 5837, 5831, 5823, 5804, 5796, 5790, 5782, 5772, 5764,
+    5758, 5750, 5728, 5720, 5714, 5706, 5696, 5688, 5682, 5674, 5655, 5647,
+    5641, 5633, 5623, 5615, 5609, 5601, 5575, 5567, 5561, 5553, 5543, 5535,
+    5529, 5521, 5502, 5494, 5488, 5480, 5470, 5462, 5456, 5448, 5426, 5418,
+    5412, 5404, 5394, 5386, 5380, 5372, 5353, 5345, 5339, 5331, 5321, 5313,
+    5307, 5299, 5433, 5425, 5419, 5411, 5401, 5393, 5387, 5379, 5360, 5352,
+    5346, 5338, 5328, 5320, 5314, 5306, 5284, 5276, 5270, 5262, 5252, 5244,
+    5238, 5230, 5211, 5203, 5197, 5189, 5179, 5171, 5165, 5157, 5131, 5123,
+    5117, 5109, 5099, 5091, 5085, 5077, 5058, 5050, 5044, 5036, 5026, 5018,
+    5012, 5004, 4982, 4974, 4968, 4960, 4950, 4942, 4936, 4928, 4909, 4901,
+    4895, 4887, 4877, 4869, 4863, 4855, 5586, 5578, 5572, 5564, 5554, 5546,
+    5540, 5532, 5513, 5505, 5499, 5491, 5481, 5473, 5467, 5459, 5437, 5429,
+    5423, 5415, 5405, 5397, 5391, 5383, 5364, 5356, 5350, 5342, 5332, 5324,
+    5318, 5310, 5284, 5276, 5270, 5262, 5252, 5244, 5238, 5230, 5211, 5203,
+    5197, 5189, 5179, 5171, 5165, 5157, 5135, 5127, 5121, 5113, 5103, 5095,
+    5089, 5081, 5062, 5054, 5048, 5040, 5030, 5022, 5016, 5008, 5142, 5134,
+    5128, 5120, 5110, 5102, 5096, 5088, 5069, 5061, 5055, 5047, 5037, 5029,
+    5023, 5015, 4993, 4985, 4979, 4971, 4961, 4953, 4947, 4939, 4920, 4912,
+    4906, 4898, 4888, 4880, 4874, 4866, 4840, 4832, 4826, 4818, 4808, 4800,
+    4794, 4786, 4767, 4759, 4753, 4745, 4735, 4727, 4721, 4713, 4691, 4683,
+    4677, 4669, 4659, 4651, 4645, 4637, 4618, 4610, 4604, 4596, 4586, 4578,
+    4572, 4564, 4766, 4758, 4752, 4744, 4734, 4726, 4720, 4712, 4693, 4685,
+    4679, 4671, 4661, 4653, 4647, 4639, 4617, 4609, 4603, 4595, 4585, 4577,
+    4571, 4563, 4544, 4536, 4530, 4522, 4512, 4504, 4498, 4490, 4464, 4456,
+    4450, 4442, 4432, 4424, 4418, 4410, 4391, 4383, 4377, 4369, 4359, 4351,
+    4345, 4337, 4315, 4307, 4301, 4293, 4283, 4275, 4269, 4261, 4242, 4234,
+    4228, 4220, 4210, 4202, 4196, 4188, 4322, 4314, 4308, 4300, 4290, 4282,
+    4276, 4268, 4249, 4241, 4235, 4227, 4217, 4209, 4203, 4195, 4173, 4165,
+    4159, 4151, 4141, 4133, 4127, 4119, 4100, 4092, 4086, 4078, 4068, 4060,
+    4054, 4046, 4020, 4012, 4006, 3998, 3988, 3980, 3974, 3966, 3947, 3939,
+    3933, 3925, 3915, 3907, 3901, 3893, 3871, 3863, 3857, 3849, 3839, 3831,
+    3825, 3817, 3798, 3790, 3784, 3776, 3766, 3758, 3752, 3744, 6697, 6689,
+    6683, 6675, 6665, 6657, 6651, 6643, 6624, 6616, 6610, 6602, 6592, 6584,
+    6578, 6570, 6548, 6540, 6534, 6526, 6516, 6508, 6502, 6494, 6475, 6467,
+    6461, 6453, 6443, 6435, 6429, 6421, 6395, 6387, 6381, 6373, 6363, 6355,
+    6349, 6341, 6322, 6314, 6308, 6300, 6290, 6282, 6276, 6268, 6246, 6238,
+    6232, 6224, 6214, 6206, 6200, 6192, 6173, 6165, 6159, 6151, 6141, 6133,
+    6127, 6119, 6253, 6245, 6239, 6231, 6221, 6213, 6207, 6199, 6180, 6172,
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+    5417, 5423, 5431, 5297, 5305, 5311, 5319, 5329, 5337, 5343, 5351, 5370,
+    5378, 5384, 5392, 5402, 5410, 5416, 5424, 5446, 5454, 5460, 5468, 5478,
+    5486, 5492, 5500, 5519, 5527, 5533, 5541, 5551, 5559, 5565, 5573, 5599,
+    5607, 5613, 5621, 5631, 5639, 5645, 5653, 5672, 5680, 5686, 5694, 5704,
+    5712, 5718, 5726, 5748, 5756, 5762, 5770, 5780, 5788, 5794, 5802, 5821,
+    5829, 5835, 5843, 5853, 5861, 5867, 5875, 5673, 5681, 5687, 5695, 5705,
+    5713, 5719, 5727, 5746, 5754, 5760, 5768, 5778, 5786, 5792, 5800, 5822,
+    5830, 5836, 5844, 5854, 5862, 5868, 5876, 5895, 5903, 5909, 5917, 5927,
+    5935, 5941, 5949, 5975, 5983, 5989, 5997, 6007, 6015, 6021, 6029, 6048,
+    6056, 6062, 6070, 6080, 6088, 6094, 6102, 6124, 6132, 6138, 6146, 6156,
+    6164, 6170, 6178, 6197, 6205, 6211, 6219, 6229, 6237, 6243, 6251, 6117,
+    6125, 6131, 6139, 6149, 6157, 6163, 6171, 6190, 6198, 6204, 6212, 6222,
+    6230, 6236, 6244, 6266, 6274, 6280, 6288, 6298, 6306, 6312, 6320, 6339,
+    6347, 6353, 6361, 6371, 6379, 6385, 6393, 6419, 6427, 6433, 6441, 6451,
+    6459, 6465, 6473, 6492, 6500, 6506, 6514, 6524, 6532, 6538, 6546, 6568,
+    6576, 6582, 6590, 6600, 6608, 6614, 6622, 6641, 6649, 6655, 6663, 6673,
+    6681, 6687, 6695, 5788, 5796, 5802, 5810, 5820, 5828, 5834, 5842, 5861,
+    5869, 5875, 5883, 5893, 5901, 5907, 5915, 5937, 5945, 5951, 5959, 5969,
+    5977, 5983, 5991, 6010, 6018, 6024, 6032, 6042, 6050, 6056, 6064, 6090,
+    6098, 6104, 6112, 6122, 6130, 6136, 6144, 6163, 6171, 6177, 6185, 6195,
+    6203, 6209, 6217, 6239, 6247, 6253, 6261, 6271, 6279, 6285, 6293, 6312,
+    6320, 6326, 6334, 6344, 6352, 6358, 6366, 6232, 6240, 6246, 6254, 6264,
+    6272, 6278, 6286, 6305, 6313, 6319, 6327, 6337, 6345, 6351, 6359, 6381,
+    6389, 6395, 6403, 6413, 6421, 6427, 6435, 6454, 6462, 6468, 6476, 6486,
+    6494, 6500, 6508, 6534, 6542, 6548, 6556, 6566, 6574, 6580, 6588, 6607,
+    6615, 6621, 6629, 6639, 6647, 6653, 6661, 6683, 6691, 6697, 6705, 6715,
+    6723, 6729, 6737, 6756, 6764, 6770, 6778, 6788, 6796, 6802, 6810, 6608,
+    6616, 6622, 6630, 6640, 6648, 6654, 6662, 6681, 6689, 6695, 6703, 6713,
+    6721, 6727, 6735, 6757, 6765, 6771, 6779, 6789, 6797, 6803, 6811, 6830,
+    6838, 6844, 6852, 6862, 6870, 6876, 6884, 6910, 6918, 6924, 6932, 6942,
+    6950, 6956, 6964, 6983, 6991, 6997, 7005, 7015, 7023, 7029, 7037, 7059,
+    7067, 7073, 7081, 7091, 7099, 7105, 7113, 7132, 7140, 7146, 7154, 7164,
+    7172, 7178, 7186, 7052, 7060, 7066, 7074, 7084, 7092, 7098, 7106, 7125,
+    7133, 7139, 7147, 7157, 7165, 7171, 7179, 7201, 7209, 7215, 7223, 7233,
+    7241, 7247, 7255, 7274, 7282, 7288, 7296, 7306, 7314, 7320, 7328, 7354,
+    7362, 7368, 7376, 7386, 7394, 7400, 7408, 7427, 7435, 7441, 7449, 7459,
+    7467, 7473, 7481, 7503, 7511, 7517, 7525, 7535, 7543, 7549, 7557, 7576,
+    7584, 7590, 7598, 7608, 7616, 7622, 7630, 6899, 6907, 6913, 6921, 6931,
+    6939, 6945, 6953, 6972, 6980, 6986, 6994, 7004, 7012, 7018, 7026, 7048,
+    7056, 7062, 7070, 7080, 7088, 7094, 7102, 7121, 7129, 7135, 7143, 7153,
+    7161, 7167, 7175, 7201, 7209, 7215, 7223, 7233, 7241, 7247, 7255, 7274,
+    7282, 7288, 7296, 7306, 7314, 7320, 7328, 7350, 7358, 7364, 7372, 7382,
+    7390, 7396, 7404, 7423, 7431, 7437, 7445, 7455, 7463, 7469, 7477, 7343,
+    7351, 7357, 7365, 7375, 7383, 7389, 7397, 7416, 7424, 7430, 7438, 7448,
+    7456, 7462, 7470, 7492, 7500, 7506, 7514, 7524, 7532, 7538, 7546, 7565,
+    7573, 7579, 7587, 7597, 7605, 7611, 7619, 7645, 7653, 7659, 7667, 7677,
+    7685, 7691, 7699, 7718, 7726, 7732, 7740, 7750, 7758, 7764, 7772, 7794,
+    7802, 7808, 7816, 7826, 7834, 7840, 7848, 7867, 7875, 7881, 7889, 7899,
+    7907, 7913, 7921, 7719, 7727, 7733, 7741, 7751, 7759, 7765, 7773, 7792,
+    7800, 7806, 7814, 7824, 7832, 7838, 7846, 7868, 7876, 7882, 7890, 7900,
+    7908, 7914, 7922, 7941, 7949, 7955, 7963, 7973, 7981, 7987, 7995, 8021,
+    8029, 8035, 8043, 8053, 8061, 8067, 8075, 8094, 8102, 8108, 8116, 8126,
+    8134, 8140, 8148, 8170, 8178, 8184, 8192, 8202, 8210, 8216, 8224, 8243,
+    8251, 8257, 8265, 8275
+};
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_DCT_VALUE_COST_H_
diff --git a/media/libvpx/vp8/encoder/dct_value_tokens.h b/media/libvpx/vp8/encoder/dct_value_tokens.h
new file mode 100644
index 000000000..c2aadefca
--- /dev/null
+++ b/media/libvpx/vp8/encoder/dct_value_tokens.h
@@ -0,0 +1,712 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_ENCODER_DCT_VALUE_TOKENS_H_
+#define VP8_ENCODER_DCT_VALUE_TOKENS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Generated file, included by tokenize.c  */
+/* Values generated by fill_value_tokens() */
+
+static const TOKENVALUE dct_value_tokens[2048*2] =
+{
+    {10, 3963}, {10, 3961}, {10, 3959}, {10, 3957}, {10, 3955}, {10, 3953},
+    {10, 3951}, {10, 3949}, {10, 3947}, {10, 3945}, {10, 3943}, {10, 3941},
+    {10, 3939}, {10, 3937}, {10, 3935}, {10, 3933}, {10, 3931}, {10, 3929},
+    {10, 3927}, {10, 3925}, {10, 3923}, {10, 3921}, {10, 3919}, {10, 3917},
+    {10, 3915}, {10, 3913}, {10, 3911}, {10, 3909}, {10, 3907}, {10, 3905},
+    {10, 3903}, {10, 3901}, {10, 3899}, {10, 3897}, {10, 3895}, {10, 3893},
+    {10, 3891}, {10, 3889}, {10, 3887}, {10, 3885}, {10, 3883}, {10, 3881},
+    {10, 3879}, {10, 3877}, {10, 3875}, {10, 3873}, {10, 3871}, {10, 3869},
+    {10, 3867}, {10, 3865}, {10, 3863}, {10, 3861}, {10, 3859}, {10, 3857},
+    {10, 3855}, {10, 3853}, {10, 3851}, {10, 3849}, {10, 3847}, {10, 3845},
+    {10, 3843}, {10, 3841}, {10, 3839}, {10, 3837}, {10, 3835}, {10, 3833},
+    {10, 3831}, {10, 3829}, {10, 3827}, {10, 3825}, {10, 3823}, {10, 3821},
+    {10, 3819}, {10, 3817}, {10, 3815}, {10, 3813}, {10, 3811}, {10, 3809},
+    {10, 3807}, {10, 3805}, {10, 3803}, {10, 3801}, {10, 3799}, {10, 3797},
+    {10, 3795}, {10, 3793}, {10, 3791}, {10, 3789}, {10, 3787}, {10, 3785},
+    {10, 3783}, {10, 3781}, {10, 3779}, {10, 3777}, {10, 3775}, {10, 3773},
+    {10, 3771}, {10, 3769}, {10, 3767}, {10, 3765}, {10, 3763}, {10, 3761},
+    {10, 3759}, {10, 3757}, {10, 3755}, {10, 3753}, {10, 3751}, {10, 3749},
+    {10, 3747}, {10, 3745}, {10, 3743}, {10, 3741}, {10, 3739}, {10, 3737},
+    {10, 3735}, {10, 3733}, {10, 3731}, {10, 3729}, {10, 3727}, {10, 3725},
+    {10, 3723}, {10, 3721}, {10, 3719}, {10, 3717}, {10, 3715}, {10, 3713},
+    {10, 3711}, {10, 3709}, {10, 3707}, {10, 3705}, {10, 3703}, {10, 3701},
+    {10, 3699}, {10, 3697}, {10, 3695}, {10, 3693}, {10, 3691}, {10, 3689},
+    {10, 3687}, {10, 3685}, {10, 3683}, {10, 3681}, {10, 3679}, {10, 3677},
+    {10, 3675}, {10, 3673}, {10, 3671}, {10, 3669}, {10, 3667}, {10, 3665},
+    {10, 3663}, {10, 3661}, {10, 3659}, {10, 3657}, {10, 3655}, {10, 3653},
+    {10, 3651}, {10, 3649}, {10, 3647}, {10, 3645}, {10, 3643}, {10, 3641},
+    {10, 3639}, {10, 3637}, {10, 3635}, {10, 3633}, {10, 3631}, {10, 3629},
+    {10, 3627}, {10, 3625}, {10, 3623}, {10, 3621}, {10, 3619}, {10, 3617},
+    {10, 3615}, {10, 3613}, {10, 3611}, {10, 3609}, {10, 3607}, {10, 3605},
+    {10, 3603}, {10, 3601}, {10, 3599}, {10, 3597}, {10, 3595}, {10, 3593},
+    {10, 3591}, {10, 3589}, {10, 3587}, {10, 3585}, {10, 3583}, {10, 3581},
+    {10, 3579}, {10, 3577}, {10, 3575}, {10, 3573}, {10, 3571}, {10, 3569},
+    {10, 3567}, {10, 3565}, {10, 3563}, {10, 3561}, {10, 3559}, {10, 3557},
+    {10, 3555}, {10, 3553}, {10, 3551}, {10, 3549}, {10, 3547}, {10, 3545},
+    {10, 3543}, {10, 3541}, {10, 3539}, {10, 3537}, {10, 3535}, {10, 3533},
+    {10, 3531}, {10, 3529}, {10, 3527}, {10, 3525}, {10, 3523}, {10, 3521},
+    {10, 3519}, {10, 3517}, {10, 3515}, {10, 3513}, {10, 3511}, {10, 3509},
+    {10, 3507}, {10, 3505}, {10, 3503}, {10, 3501}, {10, 3499}, {10, 3497},
+    {10, 3495}, {10, 3493}, {10, 3491}, {10, 3489}, {10, 3487}, {10, 3485},
+    {10, 3483}, {10, 3481}, {10, 3479}, {10, 3477}, {10, 3475}, {10, 3473},
+    {10, 3471}, {10, 3469}, {10, 3467}, {10, 3465}, {10, 3463}, {10, 3461},
+    {10, 3459}, {10, 3457}, {10, 3455}, {10, 3453}, {10, 3451}, {10, 3449},
+    {10, 3447}, {10, 3445}, {10, 3443}, {10, 3441}, {10, 3439}, {10, 3437},
+    {10, 3435}, {10, 3433}, {10, 3431}, {10, 3429}, {10, 3427}, {10, 3425},
+    {10, 3423}, {10, 3421}, {10, 3419}, {10, 3417}, {10, 3415}, {10, 3413},
+    {10, 3411}, {10, 3409}, {10, 3407}, {10, 3405}, {10, 3403}, {10, 3401},
+    {10, 3399}, {10, 3397}, {10, 3395}, {10, 3393}, {10, 3391}, {10, 3389},
+    {10, 3387}, {10, 3385}, {10, 3383}, {10, 3381}, {10, 3379}, {10, 3377},
+    {10, 3375}, {10, 3373}, {10, 3371}, {10, 3369}, {10, 3367}, {10, 3365},
+    {10, 3363}, {10, 3361}, {10, 3359}, {10, 3357}, {10, 3355}, {10, 3353},
+    {10, 3351}, {10, 3349}, {10, 3347}, {10, 3345}, {10, 3343}, {10, 3341},
+    {10, 3339}, {10, 3337}, {10, 3335}, {10, 3333}, {10, 3331}, {10, 3329},
+    {10, 3327}, {10, 3325}, {10, 3323}, {10, 3321}, {10, 3319}, {10, 3317},
+    {10, 3315}, {10, 3313}, {10, 3311}, {10, 3309}, {10, 3307}, {10, 3305},
+    {10, 3303}, {10, 3301}, {10, 3299}, {10, 3297}, {10, 3295}, {10, 3293},
+    {10, 3291}, {10, 3289}, {10, 3287}, {10, 3285}, {10, 3283}, {10, 3281},
+    {10, 3279}, {10, 3277}, {10, 3275}, {10, 3273}, {10, 3271}, {10, 3269},
+    {10, 3267}, {10, 3265}, {10, 3263}, {10, 3261}, {10, 3259}, {10, 3257},
+    {10, 3255}, {10, 3253}, {10, 3251}, {10, 3249}, {10, 3247}, {10, 3245},
+    {10, 3243}, {10, 3241}, {10, 3239}, {10, 3237}, {10, 3235}, {10, 3233},
+    {10, 3231}, {10, 3229}, {10, 3227}, {10, 3225}, {10, 3223}, {10, 3221},
+    {10, 3219}, {10, 3217}, {10, 3215}, {10, 3213}, {10, 3211}, {10, 3209},
+    {10, 3207}, {10, 3205}, {10, 3203}, {10, 3201}, {10, 3199}, {10, 3197},
+    {10, 3195}, {10, 3193}, {10, 3191}, {10, 3189}, {10, 3187}, {10, 3185},
+    {10, 3183}, {10, 3181}, {10, 3179}, {10, 3177}, {10, 3175}, {10, 3173},
+    {10, 3171}, {10, 3169}, {10, 3167}, {10, 3165}, {10, 3163}, {10, 3161},
+    {10, 3159}, {10, 3157}, {10, 3155}, {10, 3153}, {10, 3151}, {10, 3149},
+    {10, 3147}, {10, 3145}, {10, 3143}, {10, 3141}, {10, 3139}, {10, 3137},
+    {10, 3135}, {10, 3133}, {10, 3131}, {10, 3129}, {10, 3127}, {10, 3125},
+    {10, 3123}, {10, 3121}, {10, 3119}, {10, 3117}, {10, 3115}, {10, 3113},
+    {10, 3111}, {10, 3109}, {10, 3107}, {10, 3105}, {10, 3103}, {10, 3101},
+    {10, 3099}, {10, 3097}, {10, 3095}, {10, 3093}, {10, 3091}, {10, 3089},
+    {10, 3087}, {10, 3085}, {10, 3083}, {10, 3081}, {10, 3079}, {10, 3077},
+    {10, 3075}, {10, 3073}, {10, 3071}, {10, 3069}, {10, 3067}, {10, 3065},
+    {10, 3063}, {10, 3061}, {10, 3059}, {10, 3057}, {10, 3055}, {10, 3053},
+    {10, 3051}, {10, 3049}, {10, 3047}, {10, 3045}, {10, 3043}, {10, 3041},
+    {10, 3039}, {10, 3037}, {10, 3035}, {10, 3033}, {10, 3031}, {10, 3029},
+    {10, 3027}, {10, 3025}, {10, 3023}, {10, 3021}, {10, 3019}, {10, 3017},
+    {10, 3015}, {10, 3013}, {10, 3011}, {10, 3009}, {10, 3007}, {10, 3005},
+    {10, 3003}, {10, 3001}, {10, 2999}, {10, 2997}, {10, 2995}, {10, 2993},
+    {10, 2991}, {10, 2989}, {10, 2987}, {10, 2985}, {10, 2983}, {10, 2981},
+    {10, 2979}, {10, 2977}, {10, 2975}, {10, 2973}, {10, 2971}, {10, 2969},
+    {10, 2967}, {10, 2965}, {10, 2963}, {10, 2961}, {10, 2959}, {10, 2957},
+    {10, 2955}, {10, 2953}, {10, 2951}, {10, 2949}, {10, 2947}, {10, 2945},
+    {10, 2943}, {10, 2941}, {10, 2939}, {10, 2937}, {10, 2935}, {10, 2933},
+    {10, 2931}, {10, 2929}, {10, 2927}, {10, 2925}, {10, 2923}, {10, 2921},
+    {10, 2919}, {10, 2917}, {10, 2915}, {10, 2913}, {10, 2911}, {10, 2909},
+    {10, 2907}, {10, 2905}, {10, 2903}, {10, 2901}, {10, 2899}, {10, 2897},
+    {10, 2895}, {10, 2893}, {10, 2891}, {10, 2889}, {10, 2887}, {10, 2885},
+    {10, 2883}, {10, 2881}, {10, 2879}, {10, 2877}, {10, 2875}, {10, 2873},
+    {10, 2871}, {10, 2869}, {10, 2867}, {10, 2865}, {10, 2863}, {10, 2861},
+    {10, 2859}, {10, 2857}, {10, 2855}, {10, 2853}, {10, 2851}, {10, 2849},
+    {10, 2847}, {10, 2845}, {10, 2843}, {10, 2841}, {10, 2839}, {10, 2837},
+    {10, 2835}, {10, 2833}, {10, 2831}, {10, 2829}, {10, 2827}, {10, 2825},
+    {10, 2823}, {10, 2821}, {10, 2819}, {10, 2817}, {10, 2815}, {10, 2813},
+    {10, 2811}, {10, 2809}, {10, 2807}, {10, 2805}, {10, 2803}, {10, 2801},
+    {10, 2799}, {10, 2797}, {10, 2795}, {10, 2793}, {10, 2791}, {10, 2789},
+    {10, 2787}, {10, 2785}, {10, 2783}, {10, 2781}, {10, 2779}, {10, 2777},
+    {10, 2775}, {10, 2773}, {10, 2771}, {10, 2769}, {10, 2767}, {10, 2765},
+    {10, 2763}, {10, 2761}, {10, 2759}, {10, 2757}, {10, 2755}, {10, 2753},
+    {10, 2751}, {10, 2749}, {10, 2747}, {10, 2745}, {10, 2743}, {10, 2741},
+    {10, 2739}, {10, 2737}, {10, 2735}, {10, 2733}, {10, 2731}, {10, 2729},
+    {10, 2727}, {10, 2725}, {10, 2723}, {10, 2721}, {10, 2719}, {10, 2717},
+    {10, 2715}, {10, 2713}, {10, 2711}, {10, 2709}, {10, 2707}, {10, 2705},
+    {10, 2703}, {10, 2701}, {10, 2699}, {10, 2697}, {10, 2695}, {10, 2693},
+    {10, 2691}, {10, 2689}, {10, 2687}, {10, 2685}, {10, 2683}, {10, 2681},
+    {10, 2679}, {10, 2677}, {10, 2675}, {10, 2673}, {10, 2671}, {10, 2669},
+    {10, 2667}, {10, 2665}, {10, 2663}, {10, 2661}, {10, 2659}, {10, 2657},
+    {10, 2655}, {10, 2653}, {10, 2651}, {10, 2649}, {10, 2647}, {10, 2645},
+    {10, 2643}, {10, 2641}, {10, 2639}, {10, 2637}, {10, 2635}, {10, 2633},
+    {10, 2631}, {10, 2629}, {10, 2627}, {10, 2625}, {10, 2623}, {10, 2621},
+    {10, 2619}, {10, 2617}, {10, 2615}, {10, 2613}, {10, 2611}, {10, 2609},
+    {10, 2607}, {10, 2605}, {10, 2603}, {10, 2601}, {10, 2599}, {10, 2597},
+    {10, 2595}, {10, 2593}, {10, 2591}, {10, 2589}, {10, 2587}, {10, 2585},
+    {10, 2583}, {10, 2581}, {10, 2579}, {10, 2577}, {10, 2575}, {10, 2573},
+    {10, 2571}, {10, 2569}, {10, 2567}, {10, 2565}, {10, 2563}, {10, 2561},
+    {10, 2559}, {10, 2557}, {10, 2555}, {10, 2553}, {10, 2551}, {10, 2549},
+    {10, 2547}, {10, 2545}, {10, 2543}, {10, 2541}, {10, 2539}, {10, 2537},
+    {10, 2535}, {10, 2533}, {10, 2531}, {10, 2529}, {10, 2527}, {10, 2525},
+    {10, 2523}, {10, 2521}, {10, 2519}, {10, 2517}, {10, 2515}, {10, 2513},
+    {10, 2511}, {10, 2509}, {10, 2507}, {10, 2505}, {10, 2503}, {10, 2501},
+    {10, 2499}, {10, 2497}, {10, 2495}, {10, 2493}, {10, 2491}, {10, 2489},
+    {10, 2487}, {10, 2485}, {10, 2483}, {10, 2481}, {10, 2479}, {10, 2477},
+    {10, 2475}, {10, 2473}, {10, 2471}, {10, 2469}, {10, 2467}, {10, 2465},
+    {10, 2463}, {10, 2461}, {10, 2459}, {10, 2457}, {10, 2455}, {10, 2453},
+    {10, 2451}, {10, 2449}, {10, 2447}, {10, 2445}, {10, 2443}, {10, 2441},
+    {10, 2439}, {10, 2437}, {10, 2435}, {10, 2433}, {10, 2431}, {10, 2429},
+    {10, 2427}, {10, 2425}, {10, 2423}, {10, 2421}, {10, 2419}, {10, 2417},
+    {10, 2415}, {10, 2413}, {10, 2411}, {10, 2409}, {10, 2407}, {10, 2405},
+    {10, 2403}, {10, 2401}, {10, 2399}, {10, 2397}, {10, 2395}, {10, 2393},
+    {10, 2391}, {10, 2389}, {10, 2387}, {10, 2385}, {10, 2383}, {10, 2381},
+    {10, 2379}, {10, 2377}, {10, 2375}, {10, 2373}, {10, 2371}, {10, 2369},
+    {10, 2367}, {10, 2365}, {10, 2363}, {10, 2361}, {10, 2359}, {10, 2357},
+    {10, 2355}, {10, 2353}, {10, 2351}, {10, 2349}, {10, 2347}, {10, 2345},
+    {10, 2343}, {10, 2341}, {10, 2339}, {10, 2337}, {10, 2335}, {10, 2333},
+    {10, 2331}, {10, 2329}, {10, 2327}, {10, 2325}, {10, 2323}, {10, 2321},
+    {10, 2319}, {10, 2317}, {10, 2315}, {10, 2313}, {10, 2311}, {10, 2309},
+    {10, 2307}, {10, 2305}, {10, 2303}, {10, 2301}, {10, 2299}, {10, 2297},
+    {10, 2295}, {10, 2293}, {10, 2291}, {10, 2289}, {10, 2287}, {10, 2285},
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+    {10, 2574}, {10, 2576}, {10, 2578}, {10, 2580}, {10, 2582}, {10, 2584},
+    {10, 2586}, {10, 2588}, {10, 2590}, {10, 2592}, {10, 2594}, {10, 2596},
+    {10, 2598}, {10, 2600}, {10, 2602}, {10, 2604}, {10, 2606}, {10, 2608},
+    {10, 2610}, {10, 2612}, {10, 2614}, {10, 2616}, {10, 2618}, {10, 2620},
+    {10, 2622}, {10, 2624}, {10, 2626}, {10, 2628}, {10, 2630}, {10, 2632},
+    {10, 2634}, {10, 2636}, {10, 2638}, {10, 2640}, {10, 2642}, {10, 2644},
+    {10, 2646}, {10, 2648}, {10, 2650}, {10, 2652}, {10, 2654}, {10, 2656},
+    {10, 2658}, {10, 2660}, {10, 2662}, {10, 2664}, {10, 2666}, {10, 2668},
+    {10, 2670}, {10, 2672}, {10, 2674}, {10, 2676}, {10, 2678}, {10, 2680},
+    {10, 2682}, {10, 2684}, {10, 2686}, {10, 2688}, {10, 2690}, {10, 2692},
+    {10, 2694}, {10, 2696}, {10, 2698}, {10, 2700}, {10, 2702}, {10, 2704},
+    {10, 2706}, {10, 2708}, {10, 2710}, {10, 2712}, {10, 2714}, {10, 2716},
+    {10, 2718}, {10, 2720}, {10, 2722}, {10, 2724}, {10, 2726}, {10, 2728},
+    {10, 2730}, {10, 2732}, {10, 2734}, {10, 2736}, {10, 2738}, {10, 2740},
+    {10, 2742}, {10, 2744}, {10, 2746}, {10, 2748}, {10, 2750}, {10, 2752},
+    {10, 2754}, {10, 2756}, {10, 2758}, {10, 2760}, {10, 2762}, {10, 2764},
+    {10, 2766}, {10, 2768}, {10, 2770}, {10, 2772}, {10, 2774}, {10, 2776},
+    {10, 2778}, {10, 2780}, {10, 2782}, {10, 2784}, {10, 2786}, {10, 2788},
+    {10, 2790}, {10, 2792}, {10, 2794}, {10, 2796}, {10, 2798}, {10, 2800},
+    {10, 2802}, {10, 2804}, {10, 2806}, {10, 2808}, {10, 2810}, {10, 2812},
+    {10, 2814}, {10, 2816}, {10, 2818}, {10, 2820}, {10, 2822}, {10, 2824},
+    {10, 2826}, {10, 2828}, {10, 2830}, {10, 2832}, {10, 2834}, {10, 2836},
+    {10, 2838}, {10, 2840}, {10, 2842}, {10, 2844}, {10, 2846}, {10, 2848},
+    {10, 2850}, {10, 2852}, {10, 2854}, {10, 2856}, {10, 2858}, {10, 2860},
+    {10, 2862}, {10, 2864}, {10, 2866}, {10, 2868}, {10, 2870}, {10, 2872},
+    {10, 2874}, {10, 2876}, {10, 2878}, {10, 2880}, {10, 2882}, {10, 2884},
+    {10, 2886}, {10, 2888}, {10, 2890}, {10, 2892}, {10, 2894}, {10, 2896},
+    {10, 2898}, {10, 2900}, {10, 2902}, {10, 2904}, {10, 2906}, {10, 2908},
+    {10, 2910}, {10, 2912}, {10, 2914}, {10, 2916}, {10, 2918}, {10, 2920},
+    {10, 2922}, {10, 2924}, {10, 2926}, {10, 2928}, {10, 2930}, {10, 2932},
+    {10, 2934}, {10, 2936}, {10, 2938}, {10, 2940}, {10, 2942}, {10, 2944},
+    {10, 2946}, {10, 2948}, {10, 2950}, {10, 2952}, {10, 2954}, {10, 2956},
+    {10, 2958}, {10, 2960}, {10, 2962}, {10, 2964}, {10, 2966}, {10, 2968},
+    {10, 2970}, {10, 2972}, {10, 2974}, {10, 2976}, {10, 2978}, {10, 2980},
+    {10, 2982}, {10, 2984}, {10, 2986}, {10, 2988}, {10, 2990}, {10, 2992},
+    {10, 2994}, {10, 2996}, {10, 2998}, {10, 3000}, {10, 3002}, {10, 3004},
+    {10, 3006}, {10, 3008}, {10, 3010}, {10, 3012}, {10, 3014}, {10, 3016},
+    {10, 3018}, {10, 3020}, {10, 3022}, {10, 3024}, {10, 3026}, {10, 3028},
+    {10, 3030}, {10, 3032}, {10, 3034}, {10, 3036}, {10, 3038}, {10, 3040},
+    {10, 3042}, {10, 3044}, {10, 3046}, {10, 3048}, {10, 3050}, {10, 3052},
+    {10, 3054}, {10, 3056}, {10, 3058}, {10, 3060}, {10, 3062}, {10, 3064},
+    {10, 3066}, {10, 3068}, {10, 3070}, {10, 3072}, {10, 3074}, {10, 3076},
+    {10, 3078}, {10, 3080}, {10, 3082}, {10, 3084}, {10, 3086}, {10, 3088},
+    {10, 3090}, {10, 3092}, {10, 3094}, {10, 3096}, {10, 3098}, {10, 3100},
+    {10, 3102}, {10, 3104}, {10, 3106}, {10, 3108}, {10, 3110}, {10, 3112},
+    {10, 3114}, {10, 3116}, {10, 3118}, {10, 3120}, {10, 3122}, {10, 3124},
+    {10, 3126}, {10, 3128}, {10, 3130}, {10, 3132}, {10, 3134}, {10, 3136},
+    {10, 3138}, {10, 3140}, {10, 3142}, {10, 3144}, {10, 3146}, {10, 3148},
+    {10, 3150}, {10, 3152}, {10, 3154}, {10, 3156}, {10, 3158}, {10, 3160},
+    {10, 3162}, {10, 3164}, {10, 3166}, {10, 3168}, {10, 3170}, {10, 3172},
+    {10, 3174}, {10, 3176}, {10, 3178}, {10, 3180}, {10, 3182}, {10, 3184},
+    {10, 3186}, {10, 3188}, {10, 3190}, {10, 3192}, {10, 3194}, {10, 3196},
+    {10, 3198}, {10, 3200}, {10, 3202}, {10, 3204}, {10, 3206}, {10, 3208},
+    {10, 3210}, {10, 3212}, {10, 3214}, {10, 3216}, {10, 3218}, {10, 3220},
+    {10, 3222}, {10, 3224}, {10, 3226}, {10, 3228}, {10, 3230}, {10, 3232},
+    {10, 3234}, {10, 3236}, {10, 3238}, {10, 3240}, {10, 3242}, {10, 3244},
+    {10, 3246}, {10, 3248}, {10, 3250}, {10, 3252}, {10, 3254}, {10, 3256},
+    {10, 3258}, {10, 3260}, {10, 3262}, {10, 3264}, {10, 3266}, {10, 3268},
+    {10, 3270}, {10, 3272}, {10, 3274}, {10, 3276}, {10, 3278}, {10, 3280},
+    {10, 3282}, {10, 3284}, {10, 3286}, {10, 3288}, {10, 3290}, {10, 3292},
+    {10, 3294}, {10, 3296}, {10, 3298}, {10, 3300}, {10, 3302}, {10, 3304},
+    {10, 3306}, {10, 3308}, {10, 3310}, {10, 3312}, {10, 3314}, {10, 3316},
+    {10, 3318}, {10, 3320}, {10, 3322}, {10, 3324}, {10, 3326}, {10, 3328},
+    {10, 3330}, {10, 3332}, {10, 3334}, {10, 3336}, {10, 3338}, {10, 3340},
+    {10, 3342}, {10, 3344}, {10, 3346}, {10, 3348}, {10, 3350}, {10, 3352},
+    {10, 3354}, {10, 3356}, {10, 3358}, {10, 3360}, {10, 3362}, {10, 3364},
+    {10, 3366}, {10, 3368}, {10, 3370}, {10, 3372}, {10, 3374}, {10, 3376},
+    {10, 3378}, {10, 3380}, {10, 3382}, {10, 3384}, {10, 3386}, {10, 3388},
+    {10, 3390}, {10, 3392}, {10, 3394}, {10, 3396}, {10, 3398}, {10, 3400},
+    {10, 3402}, {10, 3404}, {10, 3406}, {10, 3408}, {10, 3410}, {10, 3412},
+    {10, 3414}, {10, 3416}, {10, 3418}, {10, 3420}, {10, 3422}, {10, 3424},
+    {10, 3426}, {10, 3428}, {10, 3430}, {10, 3432}, {10, 3434}, {10, 3436},
+    {10, 3438}, {10, 3440}, {10, 3442}, {10, 3444}, {10, 3446}, {10, 3448},
+    {10, 3450}, {10, 3452}, {10, 3454}, {10, 3456}, {10, 3458}, {10, 3460},
+    {10, 3462}, {10, 3464}, {10, 3466}, {10, 3468}, {10, 3470}, {10, 3472},
+    {10, 3474}, {10, 3476}, {10, 3478}, {10, 3480}, {10, 3482}, {10, 3484},
+    {10, 3486}, {10, 3488}, {10, 3490}, {10, 3492}, {10, 3494}, {10, 3496},
+    {10, 3498}, {10, 3500}, {10, 3502}, {10, 3504}, {10, 3506}, {10, 3508},
+    {10, 3510}, {10, 3512}, {10, 3514}, {10, 3516}, {10, 3518}, {10, 3520},
+    {10, 3522}, {10, 3524}, {10, 3526}, {10, 3528}, {10, 3530}, {10, 3532},
+    {10, 3534}, {10, 3536}, {10, 3538}, {10, 3540}, {10, 3542}, {10, 3544},
+    {10, 3546}, {10, 3548}, {10, 3550}, {10, 3552}, {10, 3554}, {10, 3556},
+    {10, 3558}, {10, 3560}, {10, 3562}, {10, 3564}, {10, 3566}, {10, 3568},
+    {10, 3570}, {10, 3572}, {10, 3574}, {10, 3576}, {10, 3578}, {10, 3580},
+    {10, 3582}, {10, 3584}, {10, 3586}, {10, 3588}, {10, 3590}, {10, 3592},
+    {10, 3594}, {10, 3596}, {10, 3598}, {10, 3600}, {10, 3602}, {10, 3604},
+    {10, 3606}, {10, 3608}, {10, 3610}, {10, 3612}, {10, 3614}, {10, 3616},
+    {10, 3618}, {10, 3620}, {10, 3622}, {10, 3624}, {10, 3626}, {10, 3628},
+    {10, 3630}, {10, 3632}, {10, 3634}, {10, 3636}, {10, 3638}, {10, 3640},
+    {10, 3642}, {10, 3644}, {10, 3646}, {10, 3648}, {10, 3650}, {10, 3652},
+    {10, 3654}, {10, 3656}, {10, 3658}, {10, 3660}, {10, 3662}, {10, 3664},
+    {10, 3666}, {10, 3668}, {10, 3670}, {10, 3672}, {10, 3674}, {10, 3676},
+    {10, 3678}, {10, 3680}, {10, 3682}, {10, 3684}, {10, 3686}, {10, 3688},
+    {10, 3690}, {10, 3692}, {10, 3694}, {10, 3696}, {10, 3698}, {10, 3700},
+    {10, 3702}, {10, 3704}, {10, 3706}, {10, 3708}, {10, 3710}, {10, 3712},
+    {10, 3714}, {10, 3716}, {10, 3718}, {10, 3720}, {10, 3722}, {10, 3724},
+    {10, 3726}, {10, 3728}, {10, 3730}, {10, 3732}, {10, 3734}, {10, 3736},
+    {10, 3738}, {10, 3740}, {10, 3742}, {10, 3744}, {10, 3746}, {10, 3748},
+    {10, 3750}, {10, 3752}, {10, 3754}, {10, 3756}, {10, 3758}, {10, 3760},
+    {10, 3762}, {10, 3764}, {10, 3766}, {10, 3768}, {10, 3770}, {10, 3772},
+    {10, 3774}, {10, 3776}, {10, 3778}, {10, 3780}, {10, 3782}, {10, 3784},
+    {10, 3786}, {10, 3788}, {10, 3790}, {10, 3792}, {10, 3794}, {10, 3796},
+    {10, 3798}, {10, 3800}, {10, 3802}, {10, 3804}, {10, 3806}, {10, 3808},
+    {10, 3810}, {10, 3812}, {10, 3814}, {10, 3816}, {10, 3818}, {10, 3820},
+    {10, 3822}, {10, 3824}, {10, 3826}, {10, 3828}, {10, 3830}, {10, 3832},
+    {10, 3834}, {10, 3836}, {10, 3838}, {10, 3840}, {10, 3842}, {10, 3844},
+    {10, 3846}, {10, 3848}, {10, 3850}, {10, 3852}, {10, 3854}, {10, 3856},
+    {10, 3858}, {10, 3860}, {10, 3862}, {10, 3864}, {10, 3866}, {10, 3868},
+    {10, 3870}, {10, 3872}, {10, 3874}, {10, 3876}, {10, 3878}, {10, 3880},
+    {10, 3882}, {10, 3884}, {10, 3886}, {10, 3888}, {10, 3890}, {10, 3892},
+    {10, 3894}, {10, 3896}, {10, 3898}, {10, 3900}, {10, 3902}, {10, 3904},
+    {10, 3906}, {10, 3908}, {10, 3910}, {10, 3912}, {10, 3914}, {10, 3916},
+    {10, 3918}, {10, 3920}, {10, 3922}, {10, 3924}, {10, 3926}, {10, 3928},
+    {10, 3930}, {10, 3932}, {10, 3934}, {10, 3936}, {10, 3938}, {10, 3940},
+    {10, 3942}, {10, 3944}, {10, 3946}, {10, 3948}, {10, 3950}, {10, 3952},
+    {10, 3954}, {10, 3956}, {10, 3958}, {10, 3960}
+};
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_DCT_VALUE_TOKENS_H_
diff --git a/media/libvpx/vp8/encoder/defaultcoefcounts.h b/media/libvpx/vp8/encoder/defaultcoefcounts.h
new file mode 100644
index 000000000..1e8e80484
--- /dev/null
+++ b/media/libvpx/vp8/encoder/defaultcoefcounts.h
@@ -0,0 +1,236 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_ENCODER_DEFAULTCOEFCOUNTS_H_
+#define VP8_ENCODER_DEFAULTCOEFCOUNTS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Generated file, included by entropy.c */
+
+static const unsigned int default_coef_counts[BLOCK_TYPES]
+                                             [COEF_BANDS]
+                                             [PREV_COEF_CONTEXTS]
+                                             [MAX_ENTROPY_TOKENS] =
+{
+
+    {
+        /* Block Type ( 0 ) */
+        {
+            /* Coeff Band ( 0 ) */
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+        },
+        {
+            /* Coeff Band ( 1 ) */
+            {30190, 26544, 225,  24,   4,   0,   0,   0,   0,   0,   0, 4171593,},
+            {26846, 25157, 1241, 130,  26,   6,   1,   0,   0,   0,   0, 149987,},
+            {10484, 9538, 1006, 160,  36,  18,   0,   0,   0,   0,   0, 15104,},
+        },
+        {
+            /* Coeff Band ( 2 ) */
+            {25842, 40456, 1126,  83,  11,   2,   0,   0,   0,   0,   0,   0,},
+            {9338, 8010, 512,  73,   7,   3,   2,   0,   0,   0,   0, 43294,},
+            {1047, 751, 149,  31,  13,   6,   1,   0,   0,   0,   0, 879,},
+        },
+        {
+            /* Coeff Band ( 3 ) */
+            {26136, 9826, 252,  13,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {8134, 5574, 191,  14,   2,   0,   0,   0,   0,   0,   0, 35302,},
+            { 605, 677, 116,   9,   1,   0,   0,   0,   0,   0,   0, 611,},
+        },
+        {
+            /* Coeff Band ( 4 ) */
+            {10263, 15463, 283,  17,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {2773, 2191, 128,   9,   2,   2,   0,   0,   0,   0,   0, 10073,},
+            { 134, 125,  32,   4,   0,   2,   0,   0,   0,   0,   0,  50,},
+        },
+        {
+            /* Coeff Band ( 5 ) */
+            {10483, 2663,  23,   1,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {2137, 1251,  27,   1,   1,   0,   0,   0,   0,   0,   0, 14362,},
+            { 116, 156,  14,   2,   1,   0,   0,   0,   0,   0,   0, 190,},
+        },
+        {
+            /* Coeff Band ( 6 ) */
+            {40977, 27614, 412,  28,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {6113, 5213, 261,  22,   3,   0,   0,   0,   0,   0,   0, 26164,},
+            { 382, 312,  50,  14,   2,   0,   0,   0,   0,   0,   0, 345,},
+        },
+        {
+            /* Coeff Band ( 7 ) */
+            {   0,  26,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0,  13,   0,   0,   0,   0,   0,   0,   0,   0,   0, 319,},
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   8,},
+        },
+    },
+    {
+        /* Block Type ( 1 ) */
+        {
+            /* Coeff Band ( 0 ) */
+            {3268, 19382, 1043, 250,  93,  82,  49,  26,  17,   8,  25, 82289,},
+            {8758, 32110, 5436, 1832, 827, 668, 420, 153,  24,   0,   3, 52914,},
+            {9337, 23725, 8487, 3954, 2107, 1836, 1069, 399,  59,   0,   0, 18620,},
+        },
+        {
+            /* Coeff Band ( 1 ) */
+            {12419, 8420, 452,  62,   9,   1,   0,   0,   0,   0,   0,   0,},
+            {11715, 8705, 693,  92,  15,   7,   2,   0,   0,   0,   0, 53988,},
+            {7603, 8585, 2306, 778, 270, 145,  39,   5,   0,   0,   0, 9136,},
+        },
+        {
+            /* Coeff Band ( 2 ) */
+            {15938, 14335, 1207, 184,  55,  13,   4,   1,   0,   0,   0,   0,},
+            {7415, 6829, 1138, 244,  71,  26,   7,   0,   0,   0,   0, 9980,},
+            {1580, 1824, 655, 241,  89,  46,  10,   2,   0,   0,   0, 429,},
+        },
+        {
+            /* Coeff Band ( 3 ) */
+            {19453, 5260, 201,  19,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {9173, 3758, 213,  22,   1,   1,   0,   0,   0,   0,   0, 9820,},
+            {1689, 1277, 276,  51,  17,   4,   0,   0,   0,   0,   0, 679,},
+        },
+        {
+            /* Coeff Band ( 4 ) */
+            {12076, 10667, 620,  85,  19,   9,   5,   0,   0,   0,   0,   0,},
+            {4665, 3625, 423,  55,  19,   9,   0,   0,   0,   0,   0, 5127,},
+            { 415, 440, 143,  34,  20,   7,   2,   0,   0,   0,   0, 101,},
+        },
+        {
+            /* Coeff Band ( 5 ) */
+            {12183, 4846, 115,  11,   1,   0,   0,   0,   0,   0,   0,   0,},
+            {4226, 3149, 177,  21,   2,   0,   0,   0,   0,   0,   0, 7157,},
+            { 375, 621, 189,  51,  11,   4,   1,   0,   0,   0,   0, 198,},
+        },
+        {
+            /* Coeff Band ( 6 ) */
+            {61658, 37743, 1203,  94,  10,   3,   0,   0,   0,   0,   0,   0,},
+            {15514, 11563, 903, 111,  14,   5,   0,   0,   0,   0,   0, 25195,},
+            { 929, 1077, 291,  78,  14,   7,   1,   0,   0,   0,   0, 507,},
+        },
+        {
+            /* Coeff Band ( 7 ) */
+            {   0, 990,  15,   3,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0, 412,  13,   0,   0,   0,   0,   0,   0,   0,   0, 1641,},
+            {   0,  18,   7,   1,   0,   0,   0,   0,   0,   0,   0,  30,},
+        },
+    },
+    {
+        /* Block Type ( 2 ) */
+        {
+            /* Coeff Band ( 0 ) */
+            { 953, 24519, 628, 120,  28,  12,   4,   0,   0,   0,   0, 2248798,},
+            {1525, 25654, 2647, 617, 239, 143,  42,   5,   0,   0,   0, 66837,},
+            {1180, 11011, 3001, 1237, 532, 448, 239,  54,   5,   0,   0, 7122,},
+        },
+        {
+            /* Coeff Band ( 1 ) */
+            {1356, 2220,  67,  10,   4,   1,   0,   0,   0,   0,   0,   0,},
+            {1450, 2544, 102,  18,   4,   3,   0,   0,   0,   0,   0, 57063,},
+            {1182, 2110, 470, 130,  41,  21,   0,   0,   0,   0,   0, 6047,},
+        },
+        {
+            /* Coeff Band ( 2 ) */
+            { 370, 3378, 200,  30,   5,   4,   1,   0,   0,   0,   0,   0,},
+            { 293, 1006, 131,  29,  11,   0,   0,   0,   0,   0,   0, 5404,},
+            { 114, 387,  98,  23,   4,   8,   1,   0,   0,   0,   0, 236,},
+        },
+        {
+            /* Coeff Band ( 3 ) */
+            { 579, 194,   4,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            { 395, 213,   5,   1,   0,   0,   0,   0,   0,   0,   0, 4157,},
+            { 119, 122,   4,   0,   0,   0,   0,   0,   0,   0,   0, 300,},
+        },
+        {
+            /* Coeff Band ( 4 ) */
+            {  38, 557,  19,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {  21, 114,  12,   1,   0,   0,   0,   0,   0,   0,   0, 427,},
+            {   0,   5,   0,   0,   0,   0,   0,   0,   0,   0,   0,   7,},
+        },
+        {
+            /* Coeff Band ( 5 ) */
+            {  52,   7,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {  18,   6,   0,   0,   0,   0,   0,   0,   0,   0,   0, 652,},
+            {   1,   1,   0,   0,   0,   0,   0,   0,   0,   0,   0,  30,},
+        },
+        {
+            /* Coeff Band ( 6 ) */
+            { 640, 569,  10,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {  25,  77,   2,   0,   0,   0,   0,   0,   0,   0,   0, 517,},
+            {   4,   7,   0,   0,   0,   0,   0,   0,   0,   0,   0,   3,},
+        },
+        {
+            /* Coeff Band ( 7 ) */
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+        },
+    },
+    {
+        /* Block Type ( 3 ) */
+        {
+            /* Coeff Band ( 0 ) */
+            {2506, 20161, 2707, 767, 261, 178, 107,  30,  14,   3,   0, 100694,},
+            {8806, 36478, 8817, 3268, 1280, 850, 401, 114,  42,   0,   0, 58572,},
+            {11003, 27214, 11798, 5716, 2482, 2072, 1048, 175,  32,   0,   0, 19284,},
+        },
+        {
+            /* Coeff Band ( 1 ) */
+            {9738, 11313, 959, 205,  70,  18,  11,   1,   0,   0,   0,   0,},
+            {12628, 15085, 1507, 273,  52,  19,   9,   0,   0,   0,   0, 54280,},
+            {10701, 15846, 5561, 1926, 813, 570, 249,  36,   0,   0,   0, 6460,},
+        },
+        {
+            /* Coeff Band ( 2 ) */
+            {6781, 22539, 2784, 634, 182, 123,  20,   4,   0,   0,   0,   0,},
+            {6263, 11544, 2649, 790, 259, 168,  27,   5,   0,   0,   0, 20539,},
+            {3109, 4075, 2031, 896, 457, 386, 158,  29,   0,   0,   0, 1138,},
+        },
+        {
+            /* Coeff Band ( 3 ) */
+            {11515, 4079, 465,  73,   5,  14,   2,   0,   0,   0,   0,   0,},
+            {9361, 5834, 650,  96,  24,   8,   4,   0,   0,   0,   0, 22181,},
+            {4343, 3974, 1360, 415, 132,  96,  14,   1,   0,   0,   0, 1267,},
+        },
+        {
+            /* Coeff Band ( 4 ) */
+            {4787, 9297, 823, 168,  44,  12,   4,   0,   0,   0,   0,   0,},
+            {3619, 4472, 719, 198,  60,  31,   3,   0,   0,   0,   0, 8401,},
+            {1157, 1175, 483, 182,  88,  31,   8,   0,   0,   0,   0, 268,},
+        },
+        {
+            /* Coeff Band ( 5 ) */
+            {8299, 1226,  32,   5,   1,   0,   0,   0,   0,   0,   0,   0,},
+            {3502, 1568,  57,   4,   1,   1,   0,   0,   0,   0,   0, 9811,},
+            {1055, 1070, 166,  29,   6,   1,   0,   0,   0,   0,   0, 527,},
+        },
+        {
+            /* Coeff Band ( 6 ) */
+            {27414, 27927, 1989, 347,  69,  26,   0,   0,   0,   0,   0,   0,},
+            {5876, 10074, 1574, 341,  91,  24,   4,   0,   0,   0,   0, 21954,},
+            {1571, 2171, 778, 324, 124,  65,  16,   0,   0,   0,   0, 979,},
+        },
+        {
+            /* Coeff Band ( 7 ) */
+            {   0,  29,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,},
+            {   0,  23,   0,   0,   0,   0,   0,   0,   0,   0,   0, 459,},
+            {   0,   1,   0,   0,   0,   0,   0,   0,   0,   0,   0,  13,},
+        },
+    },
+};
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_DEFAULTCOEFCOUNTS_H_
diff --git a/media/libvpx/vp8/encoder/denoising.c b/media/libvpx/vp8/encoder/denoising.c
new file mode 100644
index 000000000..d197f8f81
--- /dev/null
+++ b/media/libvpx/vp8/encoder/denoising.c
@@ -0,0 +1,745 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <limits.h>
+
+#include "denoising.h"
+
+#include "vp8/common/reconinter.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8_rtcd.h"
+
+static const unsigned int NOISE_MOTION_THRESHOLD = 25 * 25;
+/* SSE_DIFF_THRESHOLD is selected as ~95% confidence assuming
+ * var(noise) ~= 100.
+ */
+static const unsigned int SSE_DIFF_THRESHOLD = 16 * 16 * 20;
+static const unsigned int SSE_THRESHOLD = 16 * 16 * 40;
+static const unsigned int SSE_THRESHOLD_HIGH = 16 * 16 * 60;
+
+/*
+ * The filter function was modified to reduce the computational complexity.
+ * Step 1:
+ * Instead of applying tap coefficients for each pixel, we calculated the
+ * pixel adjustments vs. pixel diff value ahead of time.
+ *     adjustment = filtered_value - current_raw
+ *                = (filter_coefficient * diff + 128) >> 8
+ * where
+ *     filter_coefficient = (255 << 8) / (256 + ((absdiff * 330) >> 3));
+ *     filter_coefficient += filter_coefficient /
+ *                           (3 + motion_magnitude_adjustment);
+ *     filter_coefficient is clamped to 0 ~ 255.
+ *
+ * Step 2:
+ * The adjustment vs. diff curve becomes flat very quick when diff increases.
+ * This allowed us to use only several levels to approximate the curve without
+ * changing the filtering algorithm too much.
+ * The adjustments were further corrected by checking the motion magnitude.
+ * The levels used are:
+ * diff       adjustment w/o motion correction   adjustment w/ motion correction
+ * [-255, -16]           -6                                   -7
+ * [-15, -8]             -4                                   -5
+ * [-7, -4]              -3                                   -4
+ * [-3, 3]               diff                                 diff
+ * [4, 7]                 3                                    4
+ * [8, 15]                4                                    5
+ * [16, 255]              6                                    7
+ */
+
+int vp8_denoiser_filter_c(unsigned char *mc_running_avg_y, int mc_avg_y_stride,
+                          unsigned char *running_avg_y, int avg_y_stride,
+                          unsigned char *sig, int sig_stride,
+                          unsigned int motion_magnitude,
+                          int increase_denoising)
+{
+    unsigned char *running_avg_y_start = running_avg_y;
+    unsigned char *sig_start = sig;
+    int sum_diff_thresh;
+    int r, c;
+    int sum_diff = 0;
+    int adj_val[3] = {3, 4, 6};
+    int shift_inc1 = 0;
+    int shift_inc2 = 1;
+    int col_sum[16] = {0, 0, 0, 0,
+                       0, 0, 0, 0,
+                       0, 0, 0, 0,
+                       0, 0, 0, 0};
+    /* If motion_magnitude is small, making the denoiser more aggressive by
+     * increasing the adjustment for each level. Add another increment for
+     * blocks that are labeled for increase denoising. */
+    if (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD)
+    {
+      if (increase_denoising) {
+        shift_inc1 = 1;
+        shift_inc2 = 2;
+      }
+      adj_val[0] += shift_inc2;
+      adj_val[1] += shift_inc2;
+      adj_val[2] += shift_inc2;
+    }
+
+    for (r = 0; r < 16; ++r)
+    {
+        for (c = 0; c < 16; ++c)
+        {
+            int diff = 0;
+            int adjustment = 0;
+            int absdiff = 0;
+
+            diff = mc_running_avg_y[c] - sig[c];
+            absdiff = abs(diff);
+
+            // When |diff| <= |3 + shift_inc1|, use pixel value from
+            // last denoised raw.
+            if (absdiff <= 3 + shift_inc1)
+            {
+                running_avg_y[c] = mc_running_avg_y[c];
+                col_sum[c] += diff;
+            }
+            else
+            {
+                if (absdiff >= 4 + shift_inc1 && absdiff <= 7)
+                    adjustment = adj_val[0];
+                else if (absdiff >= 8 && absdiff <= 15)
+                    adjustment = adj_val[1];
+                else
+                    adjustment = adj_val[2];
+
+                if (diff > 0)
+                {
+                    if ((sig[c] + adjustment) > 255)
+                        running_avg_y[c] = 255;
+                    else
+                        running_avg_y[c] = sig[c] + adjustment;
+
+                    col_sum[c] += adjustment;
+                }
+                else
+                {
+                    if ((sig[c] - adjustment) < 0)
+                        running_avg_y[c] = 0;
+                    else
+                        running_avg_y[c] = sig[c] - adjustment;
+
+                    col_sum[c] -= adjustment;
+                }
+            }
+        }
+
+        /* Update pointers for next iteration. */
+        sig += sig_stride;
+        mc_running_avg_y += mc_avg_y_stride;
+        running_avg_y += avg_y_stride;
+    }
+
+    for (c = 0; c < 16; ++c) {
+      // Below we clip the value in the same way which SSE code use.
+      // When adopting aggressive denoiser, the adj_val for each pixel
+      // could be at most 8 (this is current max adjustment of the map).
+      // In SSE code, we calculate the sum of adj_val for
+      // the columns, so the sum could be upto 128(16 rows). However,
+      // the range of the value is -128 ~ 127 in SSE code, that's why
+      // we do this change in C code.
+      // We don't do this for UV denoiser, since there are only 8 rows,
+      // and max adjustments <= 8, so the sum of the columns will not
+      // exceed 64.
+      if (col_sum[c] >= 128) {
+        col_sum[c] = 127;
+      }
+      sum_diff += col_sum[c];
+    }
+
+    sum_diff_thresh= SUM_DIFF_THRESHOLD;
+    if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH;
+    if (abs(sum_diff) > sum_diff_thresh) {
+      // Before returning to copy the block (i.e., apply no denoising), check
+      // if we can still apply some (weaker) temporal filtering to this block,
+      // that would otherwise not be denoised at all. Simplest is to apply
+      // an additional adjustment to running_avg_y to bring it closer to sig.
+      // The adjustment is capped by a maximum delta, and chosen such that
+      // in most cases the resulting sum_diff will be within the
+      // accceptable range given by sum_diff_thresh.
+
+      // The delta is set by the excess of absolute pixel diff over threshold.
+      int delta = ((abs(sum_diff) - sum_diff_thresh) >> 8) + 1;
+      // Only apply the adjustment for max delta up to 3.
+      if (delta < 4) {
+        sig -= sig_stride * 16;
+        mc_running_avg_y -= mc_avg_y_stride * 16;
+        running_avg_y -= avg_y_stride * 16;
+        for (r = 0; r < 16; ++r) {
+          for (c = 0; c < 16; ++c) {
+            int diff = mc_running_avg_y[c] - sig[c];
+            int adjustment = abs(diff);
+            if (adjustment > delta)
+              adjustment = delta;
+            if (diff > 0) {
+              // Bring denoised signal down.
+              if (running_avg_y[c] - adjustment < 0)
+                running_avg_y[c] = 0;
+              else
+                running_avg_y[c] = running_avg_y[c] - adjustment;
+              col_sum[c] -= adjustment;
+            } else if (diff < 0) {
+              // Bring denoised signal up.
+              if (running_avg_y[c] + adjustment > 255)
+                running_avg_y[c] = 255;
+              else
+                running_avg_y[c] = running_avg_y[c] + adjustment;
+              col_sum[c] += adjustment;
+            }
+          }
+          // TODO(marpan): Check here if abs(sum_diff) has gone below the
+          // threshold sum_diff_thresh, and if so, we can exit the row loop.
+          sig += sig_stride;
+          mc_running_avg_y += mc_avg_y_stride;
+          running_avg_y += avg_y_stride;
+        }
+
+        sum_diff = 0;
+        for (c = 0; c < 16; ++c) {
+          if (col_sum[c] >= 128) {
+            col_sum[c] = 127;
+          }
+          sum_diff += col_sum[c];
+        }
+
+        if (abs(sum_diff) > sum_diff_thresh)
+          return COPY_BLOCK;
+      } else {
+        return COPY_BLOCK;
+      }
+    }
+
+    vp8_copy_mem16x16(running_avg_y_start, avg_y_stride, sig_start, sig_stride);
+    return FILTER_BLOCK;
+}
+
+int vp8_denoiser_filter_uv_c(unsigned char *mc_running_avg_uv,
+                             int mc_avg_uv_stride,
+                             unsigned char *running_avg_uv,
+                             int avg_uv_stride,
+                             unsigned char *sig,
+                             int sig_stride,
+                             unsigned int motion_magnitude,
+                             int increase_denoising) {
+    unsigned char *running_avg_uv_start = running_avg_uv;
+    unsigned char *sig_start = sig;
+    int sum_diff_thresh;
+    int r, c;
+    int sum_diff = 0;
+    int sum_block = 0;
+    int adj_val[3] = {3, 4, 6};
+    int shift_inc1 = 0;
+    int shift_inc2 = 1;
+    /* If motion_magnitude is small, making the denoiser more aggressive by
+     * increasing the adjustment for each level. Add another increment for
+     * blocks that are labeled for increase denoising. */
+    if (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) {
+      if (increase_denoising) {
+        shift_inc1 = 1;
+        shift_inc2 = 2;
+      }
+      adj_val[0] += shift_inc2;
+      adj_val[1] += shift_inc2;
+      adj_val[2] += shift_inc2;
+    }
+
+    // Avoid denoising color signal if its close to average level.
+    for (r = 0; r < 8; ++r) {
+      for (c = 0; c < 8; ++c) {
+        sum_block += sig[c];
+      }
+      sig += sig_stride;
+    }
+    if (abs(sum_block - (128 * 8 * 8)) < SUM_DIFF_FROM_AVG_THRESH_UV) {
+      return COPY_BLOCK;
+    }
+
+    sig -= sig_stride * 8;
+    for (r = 0; r < 8; ++r) {
+      for (c = 0; c < 8; ++c) {
+        int diff = 0;
+        int adjustment = 0;
+        int absdiff = 0;
+
+        diff = mc_running_avg_uv[c] - sig[c];
+        absdiff = abs(diff);
+
+        // When |diff| <= |3 + shift_inc1|, use pixel value from
+        // last denoised raw.
+        if (absdiff <= 3 + shift_inc1) {
+          running_avg_uv[c] = mc_running_avg_uv[c];
+          sum_diff += diff;
+        } else {
+          if (absdiff >= 4 && absdiff <= 7)
+            adjustment = adj_val[0];
+          else if (absdiff >= 8 && absdiff <= 15)
+            adjustment = adj_val[1];
+          else
+            adjustment = adj_val[2];
+          if (diff > 0) {
+            if ((sig[c] + adjustment) > 255)
+              running_avg_uv[c] = 255;
+            else
+              running_avg_uv[c] = sig[c] + adjustment;
+            sum_diff += adjustment;
+          } else {
+            if ((sig[c] - adjustment) < 0)
+              running_avg_uv[c] = 0;
+            else
+              running_avg_uv[c] = sig[c] - adjustment;
+            sum_diff -= adjustment;
+          }
+        }
+      }
+      /* Update pointers for next iteration. */
+      sig += sig_stride;
+      mc_running_avg_uv += mc_avg_uv_stride;
+      running_avg_uv += avg_uv_stride;
+    }
+
+    sum_diff_thresh= SUM_DIFF_THRESHOLD_UV;
+    if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH_UV;
+    if (abs(sum_diff) > sum_diff_thresh) {
+      // Before returning to copy the block (i.e., apply no denoising), check
+      // if we can still apply some (weaker) temporal filtering to this block,
+      // that would otherwise not be denoised at all. Simplest is to apply
+      // an additional adjustment to running_avg_y to bring it closer to sig.
+      // The adjustment is capped by a maximum delta, and chosen such that
+      // in most cases the resulting sum_diff will be within the
+      // accceptable range given by sum_diff_thresh.
+
+      // The delta is set by the excess of absolute pixel diff over threshold.
+      int delta = ((abs(sum_diff) - sum_diff_thresh) >> 8) + 1;
+      // Only apply the adjustment for max delta up to 3.
+      if (delta < 4) {
+        sig -= sig_stride * 8;
+        mc_running_avg_uv -= mc_avg_uv_stride * 8;
+        running_avg_uv -= avg_uv_stride * 8;
+        for (r = 0; r < 8; ++r) {
+          for (c = 0; c < 8; ++c) {
+            int diff = mc_running_avg_uv[c] - sig[c];
+            int adjustment = abs(diff);
+            if (adjustment > delta)
+              adjustment = delta;
+            if (diff > 0) {
+              // Bring denoised signal down.
+              if (running_avg_uv[c] - adjustment < 0)
+                running_avg_uv[c] = 0;
+              else
+                running_avg_uv[c] = running_avg_uv[c] - adjustment;
+              sum_diff -= adjustment;
+            } else if (diff < 0) {
+              // Bring denoised signal up.
+              if (running_avg_uv[c] + adjustment > 255)
+                running_avg_uv[c] = 255;
+              else
+                running_avg_uv[c] = running_avg_uv[c] + adjustment;
+              sum_diff += adjustment;
+            }
+          }
+          // TODO(marpan): Check here if abs(sum_diff) has gone below the
+          // threshold sum_diff_thresh, and if so, we can exit the row loop.
+          sig += sig_stride;
+          mc_running_avg_uv += mc_avg_uv_stride;
+          running_avg_uv += avg_uv_stride;
+        }
+        if (abs(sum_diff) > sum_diff_thresh)
+          return COPY_BLOCK;
+      } else {
+        return COPY_BLOCK;
+      }
+    }
+
+    vp8_copy_mem8x8(running_avg_uv_start, avg_uv_stride, sig_start,
+                    sig_stride);
+    return FILTER_BLOCK;
+}
+
+void vp8_denoiser_set_parameters(VP8_DENOISER *denoiser, int mode) {
+  assert(mode > 0);  // Denoiser is allocated only if mode > 0.
+  if (mode == 1) {
+    denoiser->denoiser_mode = kDenoiserOnYOnly;
+  } else if (mode == 2) {
+    denoiser->denoiser_mode = kDenoiserOnYUV;
+  } else if (mode == 3) {
+    denoiser->denoiser_mode = kDenoiserOnYUVAggressive;
+  } else {
+    denoiser->denoiser_mode = kDenoiserOnYUV;
+  }
+  if (denoiser->denoiser_mode != kDenoiserOnYUVAggressive) {
+    denoiser->denoise_pars.scale_sse_thresh = 1;
+    denoiser->denoise_pars.scale_motion_thresh = 8;
+    denoiser->denoise_pars.scale_increase_filter = 0;
+    denoiser->denoise_pars.denoise_mv_bias = 95;
+    denoiser->denoise_pars.pickmode_mv_bias = 100;
+    denoiser->denoise_pars.qp_thresh = 0;
+    denoiser->denoise_pars.consec_zerolast = UINT_MAX;
+    denoiser->denoise_pars.spatial_blur = 0;
+  } else {
+    denoiser->denoise_pars.scale_sse_thresh = 2;
+    denoiser->denoise_pars.scale_motion_thresh = 16;
+    denoiser->denoise_pars.scale_increase_filter = 1;
+    denoiser->denoise_pars.denoise_mv_bias = 60;
+    denoiser->denoise_pars.pickmode_mv_bias = 75;
+    denoiser->denoise_pars.qp_thresh = 80;
+    denoiser->denoise_pars.consec_zerolast = 15;
+    denoiser->denoise_pars.spatial_blur = 0;
+  }
+}
+
+int vp8_denoiser_allocate(VP8_DENOISER *denoiser, int width, int height,
+                          int num_mb_rows, int num_mb_cols, int mode)
+{
+    int i;
+    assert(denoiser);
+    denoiser->num_mb_cols = num_mb_cols;
+
+    for (i = 0; i < MAX_REF_FRAMES; i++)
+    {
+        denoiser->yv12_running_avg[i].flags = 0;
+
+        if (vp8_yv12_alloc_frame_buffer(&(denoiser->yv12_running_avg[i]), width,
+                                        height, VP8BORDERINPIXELS)
+            < 0)
+        {
+            vp8_denoiser_free(denoiser);
+            return 1;
+        }
+        memset(denoiser->yv12_running_avg[i].buffer_alloc, 0,
+               denoiser->yv12_running_avg[i].frame_size);
+
+    }
+    denoiser->yv12_mc_running_avg.flags = 0;
+
+    if (vp8_yv12_alloc_frame_buffer(&(denoiser->yv12_mc_running_avg), width,
+                                   height, VP8BORDERINPIXELS) < 0)
+    {
+        vp8_denoiser_free(denoiser);
+        return 1;
+    }
+
+    memset(denoiser->yv12_mc_running_avg.buffer_alloc, 0,
+           denoiser->yv12_mc_running_avg.frame_size);
+
+    if (vp8_yv12_alloc_frame_buffer(&denoiser->yv12_last_source, width,
+                                    height, VP8BORDERINPIXELS) < 0) {
+      vp8_denoiser_free(denoiser);
+      return 1;
+    }
+    memset(denoiser->yv12_last_source.buffer_alloc, 0,
+           denoiser->yv12_last_source.frame_size);
+
+    denoiser->denoise_state = vpx_calloc((num_mb_rows * num_mb_cols), 1);
+    memset(denoiser->denoise_state, 0, (num_mb_rows * num_mb_cols));
+    vp8_denoiser_set_parameters(denoiser, mode);
+    denoiser->nmse_source_diff = 0;
+    denoiser->nmse_source_diff_count = 0;
+    denoiser->qp_avg = 0;
+    // QP threshold below which we can go up to aggressive mode.
+    denoiser->qp_threshold_up = 80;
+    // QP threshold above which we can go back down to normal mode.
+    // For now keep this second threshold high, so not used currently.
+    denoiser->qp_threshold_down = 128;
+    // Bitrate thresholds and noise metric (nmse) thresholds for switching to
+    // aggressive mode.
+    // TODO(marpan): Adjust thresholds, including effect on resolution.
+    denoiser->bitrate_threshold = 400000;  // (bits/sec).
+    denoiser->threshold_aggressive_mode = 80;
+    if (width * height > 1280 * 720) {
+      denoiser->bitrate_threshold = 3000000;
+      denoiser->threshold_aggressive_mode = 200;
+    } else if (width * height > 960 * 540) {
+      denoiser->bitrate_threshold = 1200000;
+      denoiser->threshold_aggressive_mode = 120;
+    } else if (width * height > 640 * 480) {
+      denoiser->bitrate_threshold = 600000;
+      denoiser->threshold_aggressive_mode = 100;
+    }
+    return 0;
+}
+
+
+void vp8_denoiser_free(VP8_DENOISER *denoiser)
+{
+    int i;
+    assert(denoiser);
+
+    for (i = 0; i < MAX_REF_FRAMES ; i++)
+    {
+        vp8_yv12_de_alloc_frame_buffer(&denoiser->yv12_running_avg[i]);
+    }
+    vp8_yv12_de_alloc_frame_buffer(&denoiser->yv12_mc_running_avg);
+    vp8_yv12_de_alloc_frame_buffer(&denoiser->yv12_last_source);
+    vpx_free(denoiser->denoise_state);
+}
+
+void vp8_denoiser_denoise_mb(VP8_DENOISER *denoiser,
+                             MACROBLOCK *x,
+                             unsigned int best_sse,
+                             unsigned int zero_mv_sse,
+                             int recon_yoffset,
+                             int recon_uvoffset,
+                             loop_filter_info_n *lfi_n,
+                             int mb_row,
+                             int mb_col,
+                             int block_index)
+
+{
+    int mv_row;
+    int mv_col;
+    unsigned int motion_threshold;
+    unsigned int motion_magnitude2;
+    unsigned int sse_thresh;
+    int sse_diff_thresh = 0;
+    // Spatial loop filter: only applied selectively based on
+    // temporal filter state of block relative to top/left neighbors.
+    int apply_spatial_loop_filter = 1;
+    MV_REFERENCE_FRAME frame = x->best_reference_frame;
+    MV_REFERENCE_FRAME zero_frame = x->best_zeromv_reference_frame;
+
+    enum vp8_denoiser_decision decision = FILTER_BLOCK;
+    enum vp8_denoiser_decision decision_u = COPY_BLOCK;
+    enum vp8_denoiser_decision decision_v = COPY_BLOCK;
+
+    if (zero_frame)
+    {
+        YV12_BUFFER_CONFIG *src = &denoiser->yv12_running_avg[frame];
+        YV12_BUFFER_CONFIG *dst = &denoiser->yv12_mc_running_avg;
+        YV12_BUFFER_CONFIG saved_pre,saved_dst;
+        MB_MODE_INFO saved_mbmi;
+        MACROBLOCKD *filter_xd = &x->e_mbd;
+        MB_MODE_INFO *mbmi = &filter_xd->mode_info_context->mbmi;
+        int sse_diff = 0;
+        // Bias on zero motion vector sse.
+        const int zero_bias = denoiser->denoise_pars.denoise_mv_bias;
+        zero_mv_sse = (unsigned int)((int64_t)zero_mv_sse * zero_bias / 100);
+        sse_diff = zero_mv_sse - best_sse;
+
+        saved_mbmi = *mbmi;
+
+        /* Use the best MV for the compensation. */
+        mbmi->ref_frame = x->best_reference_frame;
+        mbmi->mode = x->best_sse_inter_mode;
+        mbmi->mv = x->best_sse_mv;
+        mbmi->need_to_clamp_mvs = x->need_to_clamp_best_mvs;
+        mv_col = x->best_sse_mv.as_mv.col;
+        mv_row = x->best_sse_mv.as_mv.row;
+        // Bias to zero_mv if small amount of motion.
+        // Note sse_diff_thresh is intialized to zero, so this ensures
+        // we will always choose zero_mv for denoising if
+        // zero_mv_see <= best_sse (i.e., sse_diff <= 0).
+        if ((unsigned int)(mv_row * mv_row + mv_col * mv_col)
+            <= NOISE_MOTION_THRESHOLD)
+            sse_diff_thresh = (int)SSE_DIFF_THRESHOLD;
+
+        if (frame == INTRA_FRAME ||
+            sse_diff <= sse_diff_thresh)
+        {
+            /*
+             * Handle intra blocks as referring to last frame with zero motion
+             * and let the absolute pixel difference affect the filter factor.
+             * Also consider small amount of motion as being random walk due
+             * to noise, if it doesn't mean that we get a much bigger error.
+             * Note that any changes to the mode info only affects the
+             * denoising.
+             */
+            x->denoise_zeromv = 1;
+            mbmi->ref_frame =
+                    x->best_zeromv_reference_frame;
+
+            src = &denoiser->yv12_running_avg[zero_frame];
+
+            mbmi->mode = ZEROMV;
+            mbmi->mv.as_int = 0;
+            x->best_sse_inter_mode = ZEROMV;
+            x->best_sse_mv.as_int = 0;
+            best_sse = zero_mv_sse;
+        }
+
+        saved_pre = filter_xd->pre;
+        saved_dst = filter_xd->dst;
+
+        /* Compensate the running average. */
+        filter_xd->pre.y_buffer = src->y_buffer + recon_yoffset;
+        filter_xd->pre.u_buffer = src->u_buffer + recon_uvoffset;
+        filter_xd->pre.v_buffer = src->v_buffer + recon_uvoffset;
+        /* Write the compensated running average to the destination buffer. */
+        filter_xd->dst.y_buffer = dst->y_buffer + recon_yoffset;
+        filter_xd->dst.u_buffer = dst->u_buffer + recon_uvoffset;
+        filter_xd->dst.v_buffer = dst->v_buffer + recon_uvoffset;
+
+        if (!x->skip)
+        {
+            vp8_build_inter_predictors_mb(filter_xd);
+        }
+        else
+        {
+            vp8_build_inter16x16_predictors_mb(filter_xd,
+                                               filter_xd->dst.y_buffer,
+                                               filter_xd->dst.u_buffer,
+                                               filter_xd->dst.v_buffer,
+                                               filter_xd->dst.y_stride,
+                                               filter_xd->dst.uv_stride);
+        }
+        filter_xd->pre = saved_pre;
+        filter_xd->dst = saved_dst;
+        *mbmi = saved_mbmi;
+
+    }
+
+    mv_row = x->best_sse_mv.as_mv.row;
+    mv_col = x->best_sse_mv.as_mv.col;
+    motion_magnitude2 = mv_row * mv_row + mv_col * mv_col;
+    motion_threshold = denoiser->denoise_pars.scale_motion_thresh *
+        NOISE_MOTION_THRESHOLD;
+
+    // If block is considered to be skin area, lower the motion threshold.
+    // In current version set threshold = 1, so only denoise very low
+    // (i.e., zero) mv on skin.
+    if (x->is_skin)
+        motion_threshold = 1;
+
+    if (motion_magnitude2 <
+        denoiser->denoise_pars.scale_increase_filter * NOISE_MOTION_THRESHOLD)
+      x->increase_denoising = 1;
+
+    sse_thresh = denoiser->denoise_pars.scale_sse_thresh * SSE_THRESHOLD;
+    if (x->increase_denoising)
+      sse_thresh = denoiser->denoise_pars.scale_sse_thresh * SSE_THRESHOLD_HIGH;
+
+    if (best_sse > sse_thresh || motion_magnitude2 > motion_threshold)
+      decision = COPY_BLOCK;
+
+    if (decision == FILTER_BLOCK)
+    {
+        unsigned char *mc_running_avg_y =
+            denoiser->yv12_mc_running_avg.y_buffer + recon_yoffset;
+        int mc_avg_y_stride = denoiser->yv12_mc_running_avg.y_stride;
+        unsigned char *running_avg_y =
+            denoiser->yv12_running_avg[INTRA_FRAME].y_buffer + recon_yoffset;
+        int avg_y_stride = denoiser->yv12_running_avg[INTRA_FRAME].y_stride;
+
+        /* Filter. */
+        decision = vp8_denoiser_filter(mc_running_avg_y, mc_avg_y_stride,
+                                       running_avg_y, avg_y_stride,
+                                       x->thismb, 16, motion_magnitude2,
+                                       x->increase_denoising);
+        denoiser->denoise_state[block_index] = motion_magnitude2 > 0 ?
+            kFilterNonZeroMV : kFilterZeroMV;
+        // Only denoise UV for zero motion, and if y channel was denoised.
+        if (denoiser->denoiser_mode != kDenoiserOnYOnly &&
+            motion_magnitude2 == 0 &&
+            decision == FILTER_BLOCK) {
+          unsigned char *mc_running_avg_u =
+              denoiser->yv12_mc_running_avg.u_buffer + recon_uvoffset;
+          unsigned char *running_avg_u =
+              denoiser->yv12_running_avg[INTRA_FRAME].u_buffer + recon_uvoffset;
+          unsigned char *mc_running_avg_v =
+              denoiser->yv12_mc_running_avg.v_buffer + recon_uvoffset;
+          unsigned char *running_avg_v =
+              denoiser->yv12_running_avg[INTRA_FRAME].v_buffer + recon_uvoffset;
+          int mc_avg_uv_stride = denoiser->yv12_mc_running_avg.uv_stride;
+          int avg_uv_stride = denoiser->yv12_running_avg[INTRA_FRAME].uv_stride;
+          int signal_stride = x->block[16].src_stride;
+          decision_u =
+              vp8_denoiser_filter_uv(mc_running_avg_u, mc_avg_uv_stride,
+                                      running_avg_u, avg_uv_stride,
+                                      x->block[16].src + *x->block[16].base_src,
+                                      signal_stride, motion_magnitude2, 0);
+          decision_v =
+              vp8_denoiser_filter_uv(mc_running_avg_v, mc_avg_uv_stride,
+                                      running_avg_v, avg_uv_stride,
+                                      x->block[20].src + *x->block[20].base_src,
+                                      signal_stride, motion_magnitude2, 0);
+        }
+    }
+    if (decision == COPY_BLOCK)
+    {
+        /* No filtering of this block; it differs too much from the predictor,
+         * or the motion vector magnitude is considered too big.
+         */
+        x->denoise_zeromv = 0;
+        vp8_copy_mem16x16(
+                x->thismb, 16,
+                denoiser->yv12_running_avg[INTRA_FRAME].y_buffer + recon_yoffset,
+                denoiser->yv12_running_avg[INTRA_FRAME].y_stride);
+        denoiser->denoise_state[block_index] = kNoFilter;
+    }
+    if (denoiser->denoiser_mode != kDenoiserOnYOnly) {
+      if (decision_u == COPY_BLOCK) {
+        vp8_copy_mem8x8(
+            x->block[16].src + *x->block[16].base_src, x->block[16].src_stride,
+            denoiser->yv12_running_avg[INTRA_FRAME].u_buffer + recon_uvoffset,
+            denoiser->yv12_running_avg[INTRA_FRAME].uv_stride);
+      }
+      if (decision_v == COPY_BLOCK) {
+        vp8_copy_mem8x8(
+            x->block[20].src + *x->block[20].base_src, x->block[16].src_stride,
+            denoiser->yv12_running_avg[INTRA_FRAME].v_buffer + recon_uvoffset,
+            denoiser->yv12_running_avg[INTRA_FRAME].uv_stride);
+      }
+    }
+    // Option to selectively deblock the denoised signal, for y channel only.
+    if (apply_spatial_loop_filter) {
+      loop_filter_info lfi;
+      int apply_filter_col = 0;
+      int apply_filter_row = 0;
+      int apply_filter = 0;
+      int y_stride = denoiser->yv12_running_avg[INTRA_FRAME].y_stride;
+      int uv_stride =denoiser->yv12_running_avg[INTRA_FRAME].uv_stride;
+
+      // Fix filter level to some nominal value for now.
+      int filter_level = 48;
+
+      int hev_index = lfi_n->hev_thr_lut[INTER_FRAME][filter_level];
+      lfi.mblim = lfi_n->mblim[filter_level];
+      lfi.blim = lfi_n->blim[filter_level];
+      lfi.lim = lfi_n->lim[filter_level];
+      lfi.hev_thr = lfi_n->hev_thr[hev_index];
+
+      // Apply filter if there is a difference in the denoiser filter state
+      // between the current and left/top block, or if non-zero motion vector
+      // is used for the motion-compensated filtering.
+      if (mb_col > 0) {
+        apply_filter_col = !((denoiser->denoise_state[block_index] ==
+            denoiser->denoise_state[block_index - 1]) &&
+            denoiser->denoise_state[block_index] != kFilterNonZeroMV);
+        if (apply_filter_col) {
+          // Filter left vertical edge.
+          apply_filter = 1;
+          vp8_loop_filter_mbv(
+              denoiser->yv12_running_avg[INTRA_FRAME].y_buffer + recon_yoffset,
+              NULL, NULL, y_stride, uv_stride, &lfi);
+        }
+      }
+      if (mb_row > 0) {
+        apply_filter_row = !((denoiser->denoise_state[block_index] ==
+            denoiser->denoise_state[block_index - denoiser->num_mb_cols]) &&
+            denoiser->denoise_state[block_index] != kFilterNonZeroMV);
+        if (apply_filter_row) {
+          // Filter top horizontal edge.
+          apply_filter = 1;
+          vp8_loop_filter_mbh(
+              denoiser->yv12_running_avg[INTRA_FRAME].y_buffer + recon_yoffset,
+              NULL, NULL, y_stride, uv_stride, &lfi);
+        }
+      }
+      if (apply_filter) {
+        // Update the signal block |x|. Pixel changes are only to top and/or
+        // left boundary pixels: can we avoid full block copy here.
+        vp8_copy_mem16x16(
+            denoiser->yv12_running_avg[INTRA_FRAME].y_buffer + recon_yoffset,
+            y_stride, x->thismb, 16);
+      }
+    }
+}
diff --git a/media/libvpx/vp8/encoder/denoising.h b/media/libvpx/vp8/encoder/denoising.h
new file mode 100644
index 000000000..9a379a6a1
--- /dev/null
+++ b/media/libvpx/vp8/encoder/denoising.h
@@ -0,0 +1,117 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_ENCODER_DENOISING_H_
+#define VP8_ENCODER_DENOISING_H_
+
+#include "block.h"
+#include "vp8/common/loopfilter.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SUM_DIFF_THRESHOLD (16 * 16 * 2)
+#define SUM_DIFF_THRESHOLD_HIGH (600)  // ~(16 * 16 * 1.5)
+#define MOTION_MAGNITUDE_THRESHOLD (8*3)
+
+#define SUM_DIFF_THRESHOLD_UV (96)   // (8 * 8 * 1.5)
+#define SUM_DIFF_THRESHOLD_HIGH_UV (8 * 8 * 2)
+#define SUM_DIFF_FROM_AVG_THRESH_UV (8 * 8 * 8)
+#define MOTION_MAGNITUDE_THRESHOLD_UV (8*3)
+
+#define MAX_GF_ARF_DENOISE_RANGE (8)
+
+enum vp8_denoiser_decision
+{
+  COPY_BLOCK,
+  FILTER_BLOCK
+};
+
+enum vp8_denoiser_filter_state {
+  kNoFilter,
+  kFilterZeroMV,
+  kFilterNonZeroMV
+};
+
+enum vp8_denoiser_mode {
+  kDenoiserOff,
+  kDenoiserOnYOnly,
+  kDenoiserOnYUV,
+  kDenoiserOnYUVAggressive,
+  kDenoiserOnAdaptive
+};
+
+typedef struct {
+  // Scale factor on sse threshold above which no denoising is done.
+  unsigned int scale_sse_thresh;
+  // Scale factor on motion magnitude threshold above which no
+  // denoising is done.
+  unsigned int scale_motion_thresh;
+  // Scale factor on motion magnitude below which we increase the strength of
+  // the temporal filter (in function vp8_denoiser_filter).
+  unsigned int scale_increase_filter;
+  // Scale factor to bias to ZEROMV for denoising.
+  unsigned int denoise_mv_bias;
+  // Scale factor to bias to ZEROMV for coding mode selection.
+  unsigned int pickmode_mv_bias;
+  // Quantizer threshold below which we use the segmentation map to switch off
+  // loop filter for blocks that have been coded as ZEROMV-LAST a certain number
+  // (consec_zerolast) of consecutive frames. Note that the delta-QP is set to
+  // 0 when segmentation map is used for shutting off loop filter.
+  unsigned int qp_thresh;
+  // Threshold for number of consecutive frames for blocks coded as ZEROMV-LAST.
+  unsigned int consec_zerolast;
+  // Threshold for amount of spatial blur on Y channel. 0 means no spatial blur.
+  unsigned int spatial_blur;
+} denoise_params;
+
+typedef struct vp8_denoiser
+{
+    YV12_BUFFER_CONFIG yv12_running_avg[MAX_REF_FRAMES];
+    YV12_BUFFER_CONFIG yv12_mc_running_avg;
+    // TODO(marpan): Should remove yv12_last_source and use vp8_lookahead_peak.
+    YV12_BUFFER_CONFIG yv12_last_source;
+    unsigned char* denoise_state;
+    int num_mb_cols;
+    int denoiser_mode;
+    int threshold_aggressive_mode;
+    int nmse_source_diff;
+    int nmse_source_diff_count;
+    int qp_avg;
+    int qp_threshold_up;
+    int qp_threshold_down;
+    int bitrate_threshold;
+    denoise_params denoise_pars;
+} VP8_DENOISER;
+
+int vp8_denoiser_allocate(VP8_DENOISER *denoiser, int width, int height,
+                          int num_mb_rows, int num_mb_cols, int mode);
+
+void vp8_denoiser_free(VP8_DENOISER *denoiser);
+
+void vp8_denoiser_set_parameters(VP8_DENOISER *denoiser, int mode);
+
+void vp8_denoiser_denoise_mb(VP8_DENOISER *denoiser,
+                             MACROBLOCK *x,
+                             unsigned int best_sse,
+                             unsigned int zero_mv_sse,
+                             int recon_yoffset,
+                             int recon_uvoffset,
+                             loop_filter_info_n *lfi_n,
+                             int mb_row,
+                             int mb_col,
+                             int block_index);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_DENOISING_H_
diff --git a/media/libvpx/vp8/encoder/encodeframe.c b/media/libvpx/vp8/encoder/encodeframe.c
new file mode 100644
index 000000000..5e84fb491
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodeframe.c
@@ -0,0 +1,1427 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "encodemb.h"
+#include "encodemv.h"
+#include "vp8/common/common.h"
+#include "onyx_int.h"
+#include "vp8/common/extend.h"
+#include "vp8/common/entropymode.h"
+#include "vp8/common/quant_common.h"
+#include "segmentation.h"
+#include "vp8/common/setupintrarecon.h"
+#include "encodeintra.h"
+#include "vp8/common/reconinter.h"
+#include "rdopt.h"
+#include "pickinter.h"
+#include "vp8/common/findnearmv.h"
+#include <stdio.h>
+#include <limits.h>
+#include "vp8/common/invtrans.h"
+#include "vpx_ports/vpx_timer.h"
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+#include "bitstream.h"
+#endif
+#include "encodeframe.h"
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+
+extern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t) ;
+extern void vp8_calc_ref_frame_costs(int *ref_frame_cost,
+                                     int prob_intra,
+                                     int prob_last,
+                                     int prob_garf
+                                    );
+extern void vp8_convert_rfct_to_prob(VP8_COMP *const cpi);
+extern void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex);
+extern void vp8_auto_select_speed(VP8_COMP *cpi);
+extern void vp8cx_init_mbrthread_data(VP8_COMP *cpi,
+                                      MACROBLOCK *x,
+                                      MB_ROW_COMP *mbr_ei,
+                                      int count);
+static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x );
+
+#ifdef MODE_STATS
+unsigned int inter_y_modes[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+unsigned int inter_uv_modes[4] = {0, 0, 0, 0};
+unsigned int inter_b_modes[15]  = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+unsigned int y_modes[5]   = {0, 0, 0, 0, 0};
+unsigned int uv_modes[4]  = {0, 0, 0, 0};
+unsigned int b_modes[14]  = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+#endif
+
+
+/* activity_avg must be positive, or flat regions could get a zero weight
+ *  (infinite lambda), which confounds analysis.
+ * This also avoids the need for divide by zero checks in
+ *  vp8_activity_masking().
+ */
+#define VP8_ACTIVITY_AVG_MIN (64)
+
+/* This is used as a reference when computing the source variance for the
+ *  purposes of activity masking.
+ * Eventually this should be replaced by custom no-reference routines,
+ *  which will be faster.
+ */
+static const unsigned char VP8_VAR_OFFS[16]=
+{
+    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
+};
+
+
+/* Original activity measure from Tim T's code. */
+static unsigned int tt_activity_measure( VP8_COMP *cpi, MACROBLOCK *x )
+{
+    unsigned int act;
+    unsigned int sse;
+    (void)cpi;
+    /* TODO: This could also be done over smaller areas (8x8), but that would
+     *  require extensive changes elsewhere, as lambda is assumed to be fixed
+     *  over an entire MB in most of the code.
+     * Another option is to compute four 8x8 variances, and pick a single
+     *  lambda using a non-linear combination (e.g., the smallest, or second
+     *  smallest, etc.).
+     */
+    act =  vpx_variance16x16(x->src.y_buffer,
+                    x->src.y_stride, VP8_VAR_OFFS, 0, &sse);
+    act = act<<4;
+
+    /* If the region is flat, lower the activity some more. */
+    if (act < 8<<12)
+        act = act < 5<<12 ? act : 5<<12;
+
+    return act;
+}
+
+/* Stub for alternative experimental activity measures. */
+static unsigned int alt_activity_measure( VP8_COMP *cpi,
+                                          MACROBLOCK *x, int use_dc_pred )
+{
+    return vp8_encode_intra(cpi,x, use_dc_pred);
+}
+
+
+/* Measure the activity of the current macroblock
+ * What we measure here is TBD so abstracted to this function
+ */
+#define ALT_ACT_MEASURE 1
+static unsigned int mb_activity_measure( VP8_COMP *cpi, MACROBLOCK *x,
+                                  int mb_row, int mb_col)
+{
+    unsigned int mb_activity;
+
+    if  ( ALT_ACT_MEASURE )
+    {
+        int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
+
+        /* Or use and alternative. */
+        mb_activity = alt_activity_measure( cpi, x, use_dc_pred );
+    }
+    else
+    {
+        /* Original activity measure from Tim T's code. */
+        mb_activity = tt_activity_measure( cpi, x );
+    }
+
+    if ( mb_activity < VP8_ACTIVITY_AVG_MIN )
+        mb_activity = VP8_ACTIVITY_AVG_MIN;
+
+    return mb_activity;
+}
+
+/* Calculate an "average" mb activity value for the frame */
+#define ACT_MEDIAN 0
+static void calc_av_activity( VP8_COMP *cpi, int64_t activity_sum )
+{
+#if ACT_MEDIAN
+    /* Find median: Simple n^2 algorithm for experimentation */
+    {
+        unsigned int median;
+        unsigned int i,j;
+        unsigned int * sortlist;
+        unsigned int tmp;
+
+        /* Create a list to sort to */
+        CHECK_MEM_ERROR(sortlist,
+                        vpx_calloc(sizeof(unsigned int),
+                        cpi->common.MBs));
+
+        /* Copy map to sort list */
+        memcpy( sortlist, cpi->mb_activity_map,
+                sizeof(unsigned int) * cpi->common.MBs );
+
+
+        /* Ripple each value down to its correct position */
+        for ( i = 1; i < cpi->common.MBs; i ++ )
+        {
+            for ( j = i; j > 0; j -- )
+            {
+                if ( sortlist[j] < sortlist[j-1] )
+                {
+                    /* Swap values */
+                    tmp = sortlist[j-1];
+                    sortlist[j-1] = sortlist[j];
+                    sortlist[j] = tmp;
+                }
+                else
+                    break;
+            }
+        }
+
+        /* Even number MBs so estimate median as mean of two either side. */
+        median = ( 1 + sortlist[cpi->common.MBs >> 1] +
+                   sortlist[(cpi->common.MBs >> 1) + 1] ) >> 1;
+
+        cpi->activity_avg = median;
+
+        vpx_free(sortlist);
+    }
+#else
+    /* Simple mean for now */
+    cpi->activity_avg = (unsigned int)(activity_sum/cpi->common.MBs);
+#endif
+
+    if (cpi->activity_avg < VP8_ACTIVITY_AVG_MIN)
+        cpi->activity_avg = VP8_ACTIVITY_AVG_MIN;
+
+    /* Experimental code: return fixed value normalized for several clips */
+    if  ( ALT_ACT_MEASURE )
+        cpi->activity_avg = 100000;
+}
+
+#define USE_ACT_INDEX   0
+#define OUTPUT_NORM_ACT_STATS   0
+
+#if USE_ACT_INDEX
+/* Calculate and activity index for each mb */
+static void calc_activity_index( VP8_COMP *cpi, MACROBLOCK *x )
+{
+    VP8_COMMON *const cm = & cpi->common;
+    int mb_row, mb_col;
+
+    int64_t act;
+    int64_t a;
+    int64_t b;
+
+#if OUTPUT_NORM_ACT_STATS
+    FILE *f = fopen("norm_act.stt", "a");
+    fprintf(f, "\n%12d\n", cpi->activity_avg );
+#endif
+
+    /* Reset pointers to start of activity map */
+    x->mb_activity_ptr = cpi->mb_activity_map;
+
+    /* Calculate normalized mb activity number. */
+    for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+    {
+        /* for each macroblock col in image */
+        for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+        {
+            /* Read activity from the map */
+            act = *(x->mb_activity_ptr);
+
+            /* Calculate a normalized activity number */
+            a = act + 4*cpi->activity_avg;
+            b = 4*act + cpi->activity_avg;
+
+            if ( b >= a )
+                *(x->activity_ptr) = (int)((b + (a>>1))/a) - 1;
+            else
+                *(x->activity_ptr) = 1 - (int)((a + (b>>1))/b);
+
+#if OUTPUT_NORM_ACT_STATS
+            fprintf(f, " %6d", *(x->mb_activity_ptr));
+#endif
+            /* Increment activity map pointers */
+            x->mb_activity_ptr++;
+        }
+
+#if OUTPUT_NORM_ACT_STATS
+        fprintf(f, "\n");
+#endif
+
+    }
+
+#if OUTPUT_NORM_ACT_STATS
+    fclose(f);
+#endif
+
+}
+#endif
+
+/* Loop through all MBs. Note activity of each, average activity and
+ * calculate a normalized activity for each
+ */
+static void build_activity_map( VP8_COMP *cpi )
+{
+    MACROBLOCK *const x = & cpi->mb;
+    MACROBLOCKD *xd = &x->e_mbd;
+    VP8_COMMON *const cm = & cpi->common;
+
+#if ALT_ACT_MEASURE
+    YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
+    int recon_yoffset;
+    int recon_y_stride = new_yv12->y_stride;
+#endif
+
+    int mb_row, mb_col;
+    unsigned int mb_activity;
+    int64_t activity_sum = 0;
+
+    /* for each macroblock row in image */
+    for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+    {
+#if ALT_ACT_MEASURE
+        /* reset above block coeffs */
+        xd->up_available = (mb_row != 0);
+        recon_yoffset = (mb_row * recon_y_stride * 16);
+#endif
+        /* for each macroblock col in image */
+        for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+        {
+#if ALT_ACT_MEASURE
+            xd->dst.y_buffer = new_yv12->y_buffer + recon_yoffset;
+            xd->left_available = (mb_col != 0);
+            recon_yoffset += 16;
+#endif
+            /* Copy current mb to a buffer */
+            vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
+
+            /* measure activity */
+            mb_activity = mb_activity_measure( cpi, x, mb_row, mb_col );
+
+            /* Keep frame sum */
+            activity_sum += mb_activity;
+
+            /* Store MB level activity details. */
+            *x->mb_activity_ptr = mb_activity;
+
+            /* Increment activity map pointer */
+            x->mb_activity_ptr++;
+
+            /* adjust to the next column of source macroblocks */
+            x->src.y_buffer += 16;
+        }
+
+
+        /* adjust to the next row of mbs */
+        x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
+
+#if ALT_ACT_MEASURE
+        /* extend the recon for intra prediction */
+        vp8_extend_mb_row(new_yv12, xd->dst.y_buffer + 16,
+                          xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
+#endif
+
+    }
+
+    /* Calculate an "average" MB activity */
+    calc_av_activity(cpi, activity_sum);
+
+#if USE_ACT_INDEX
+    /* Calculate an activity index number of each mb */
+    calc_activity_index( cpi, x );
+#endif
+
+}
+
+/* Macroblock activity masking */
+void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x)
+{
+#if USE_ACT_INDEX
+    x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
+    x->errorperbit = x->rdmult * 100 /(110 * x->rddiv);
+    x->errorperbit += (x->errorperbit==0);
+#else
+    int64_t a;
+    int64_t b;
+    int64_t act = *(x->mb_activity_ptr);
+
+    /* Apply the masking to the RD multiplier. */
+    a = act + (2*cpi->activity_avg);
+    b = (2*act) + cpi->activity_avg;
+
+    x->rdmult = (unsigned int)(((int64_t)x->rdmult*b + (a>>1))/a);
+    x->errorperbit = x->rdmult * 100 /(110 * x->rddiv);
+    x->errorperbit += (x->errorperbit==0);
+#endif
+
+    /* Activity based Zbin adjustment */
+    adjust_act_zbin(cpi, x);
+}
+
+static
+void encode_mb_row(VP8_COMP *cpi,
+                   VP8_COMMON *cm,
+                   int mb_row,
+                   MACROBLOCK  *x,
+                   MACROBLOCKD *xd,
+                   TOKENEXTRA **tp,
+                   int *segment_counts,
+                   int *totalrate)
+{
+    int recon_yoffset, recon_uvoffset;
+    int mb_col;
+    int ref_fb_idx = cm->lst_fb_idx;
+    int dst_fb_idx = cm->new_fb_idx;
+    int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
+    int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
+    int map_index = (mb_row * cpi->common.mb_cols);
+
+#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    const int num_part = (1 << cm->multi_token_partition);
+    TOKENEXTRA * tp_start = cpi->tok;
+    vp8_writer *w;
+#endif
+
+#if CONFIG_MULTITHREAD
+    const int nsync = cpi->mt_sync_range;
+    const int rightmost_col = cm->mb_cols + nsync;
+    volatile const int *last_row_current_mb_col;
+    volatile int *current_mb_col = &cpi->mt_current_mb_col[mb_row];
+
+    if ((cpi->b_multi_threaded != 0) && (mb_row != 0))
+        last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1];
+    else
+        last_row_current_mb_col = &rightmost_col;
+#endif
+
+#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    if(num_part > 1)
+        w= &cpi->bc[1 + (mb_row % num_part)];
+    else
+        w = &cpi->bc[1];
+#endif
+
+    /* reset above block coeffs */
+    xd->above_context = cm->above_context;
+
+    xd->up_available = (mb_row != 0);
+    recon_yoffset = (mb_row * recon_y_stride * 16);
+    recon_uvoffset = (mb_row * recon_uv_stride * 8);
+
+    cpi->tplist[mb_row].start = *tp;
+    /* printf("Main mb_row = %d\n", mb_row); */
+
+    /* Distance of Mb to the top & bottom edges, specified in 1/8th pel
+     * units as they are always compared to values that are in 1/8th pel
+     */
+    xd->mb_to_top_edge = -((mb_row * 16) << 3);
+    xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
+
+    /* Set up limit values for vertical motion vector components
+     * to prevent them extending beyond the UMV borders
+     */
+    x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
+    x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16)
+                        + (VP8BORDERINPIXELS - 16);
+
+    /* Set the mb activity pointer to the start of the row. */
+    x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
+
+    /* for each macroblock col in image */
+    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+    {
+
+#if  (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+        *tp = cpi->tok;
+#endif
+        /* Distance of Mb to the left & right edges, specified in
+         * 1/8th pel units as they are always compared to values
+         * that are in 1/8th pel units
+         */
+        xd->mb_to_left_edge = -((mb_col * 16) << 3);
+        xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
+
+        /* Set up limit values for horizontal motion vector components
+         * to prevent them extending beyond the UMV borders
+         */
+        x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
+        x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16)
+                            + (VP8BORDERINPIXELS - 16);
+
+        xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
+        xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
+        xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
+        xd->left_available = (mb_col != 0);
+
+        x->rddiv = cpi->RDDIV;
+        x->rdmult = cpi->RDMULT;
+
+        /* Copy current mb to a buffer */
+        vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
+
+#if CONFIG_MULTITHREAD
+        if (cpi->b_multi_threaded != 0)
+        {
+            *current_mb_col = mb_col - 1; /* set previous MB done */
+
+            if ((mb_col & (nsync - 1)) == 0)
+            {
+                while (mb_col > (*last_row_current_mb_col - nsync))
+                {
+                    x86_pause_hint();
+                    thread_sleep(0);
+                }
+            }
+        }
+#endif
+
+        if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
+            vp8_activity_masking(cpi, x);
+
+        /* Is segmentation enabled */
+        /* MB level adjustment to quantizer */
+        if (xd->segmentation_enabled)
+        {
+            /* Code to set segment id in xd->mbmi.segment_id for current MB
+             * (with range checking)
+             */
+            if (cpi->segmentation_map[map_index+mb_col] <= 3)
+                xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index+mb_col];
+            else
+                xd->mode_info_context->mbmi.segment_id = 0;
+
+            vp8cx_mb_init_quantizer(cpi, x, 1);
+        }
+        else
+            /* Set to Segment 0 by default */
+            xd->mode_info_context->mbmi.segment_id = 0;
+
+        x->active_ptr = cpi->active_map + map_index + mb_col;
+
+        if (cm->frame_type == KEY_FRAME)
+        {
+            *totalrate += vp8cx_encode_intra_macroblock(cpi, x, tp);
+#ifdef MODE_STATS
+            y_modes[xd->mbmi.mode] ++;
+#endif
+        }
+        else
+        {
+            *totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset, mb_row, mb_col);
+
+#ifdef MODE_STATS
+            inter_y_modes[xd->mbmi.mode] ++;
+
+            if (xd->mbmi.mode == SPLITMV)
+            {
+                int b;
+
+                for (b = 0; b < xd->mbmi.partition_count; b++)
+                {
+                    inter_b_modes[x->partition->bmi[b].mode] ++;
+                }
+            }
+
+#endif
+
+            // Keep track of how many (consecutive) times a  block is coded
+            // as ZEROMV_LASTREF, for base layer frames.
+            // Reset to 0 if its coded as anything else.
+            if (cpi->current_layer == 0) {
+              if (xd->mode_info_context->mbmi.mode == ZEROMV &&
+                  xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) {
+                // Increment, check for wrap-around.
+                if (cpi->consec_zero_last[map_index+mb_col] < 255)
+                  cpi->consec_zero_last[map_index+mb_col] += 1;
+                if (cpi->consec_zero_last_mvbias[map_index+mb_col] < 255)
+                  cpi->consec_zero_last_mvbias[map_index+mb_col] += 1;
+              } else {
+                cpi->consec_zero_last[map_index+mb_col] = 0;
+                cpi->consec_zero_last_mvbias[map_index+mb_col] = 0;
+              }
+              if (x->zero_last_dot_suppress)
+                cpi->consec_zero_last_mvbias[map_index+mb_col] = 0;
+            }
+
+            /* Special case code for cyclic refresh
+             * If cyclic update enabled then copy xd->mbmi.segment_id; (which
+             * may have been updated based on mode during
+             * vp8cx_encode_inter_macroblock()) back into the global
+             * segmentation map
+             */
+            if ((cpi->current_layer == 0) &&
+                (cpi->cyclic_refresh_mode_enabled &&
+                 xd->segmentation_enabled))
+            {
+                cpi->segmentation_map[map_index+mb_col] = xd->mode_info_context->mbmi.segment_id;
+
+                /* If the block has been refreshed mark it as clean (the
+                 * magnitude of the -ve influences how long it will be before
+                 * we consider another refresh):
+                 * Else if it was coded (last frame 0,0) and has not already
+                 * been refreshed then mark it as a candidate for cleanup
+                 * next time (marked 0) else mark it as dirty (1).
+                 */
+                if (xd->mode_info_context->mbmi.segment_id)
+                    cpi->cyclic_refresh_map[map_index+mb_col] = -1;
+                else if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME))
+                {
+                    if (cpi->cyclic_refresh_map[map_index+mb_col] == 1)
+                        cpi->cyclic_refresh_map[map_index+mb_col] = 0;
+                }
+                else
+                    cpi->cyclic_refresh_map[map_index+mb_col] = 1;
+
+            }
+        }
+
+        cpi->tplist[mb_row].stop = *tp;
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+        /* pack tokens for this MB */
+        {
+            int tok_count = *tp - tp_start;
+            vp8_pack_tokens(w, tp_start, tok_count);
+        }
+#endif
+        /* Increment pointer into gf usage flags structure. */
+        x->gf_active_ptr++;
+
+        /* Increment the activity mask pointers. */
+        x->mb_activity_ptr++;
+
+        /* adjust to the next column of macroblocks */
+        x->src.y_buffer += 16;
+        x->src.u_buffer += 8;
+        x->src.v_buffer += 8;
+
+        recon_yoffset += 16;
+        recon_uvoffset += 8;
+
+        /* Keep track of segment usage */
+        segment_counts[xd->mode_info_context->mbmi.segment_id] ++;
+
+        /* skip to next mb */
+        xd->mode_info_context++;
+        x->partition_info++;
+        xd->above_context++;
+    }
+
+    /* extend the recon for intra prediction */
+    vp8_extend_mb_row( &cm->yv12_fb[dst_fb_idx],
+                        xd->dst.y_buffer + 16,
+                        xd->dst.u_buffer + 8,
+                        xd->dst.v_buffer + 8);
+
+#if CONFIG_MULTITHREAD
+    if (cpi->b_multi_threaded != 0)
+        *current_mb_col = rightmost_col;
+#endif
+
+    /* this is to account for the border */
+    xd->mode_info_context++;
+    x->partition_info++;
+}
+
+static void init_encode_frame_mb_context(VP8_COMP *cpi)
+{
+    MACROBLOCK *const x = & cpi->mb;
+    VP8_COMMON *const cm = & cpi->common;
+    MACROBLOCKD *const xd = & x->e_mbd;
+
+    /* GF active flags data structure */
+    x->gf_active_ptr = (signed char *)cpi->gf_active_flags;
+
+    /* Activity map pointer */
+    x->mb_activity_ptr = cpi->mb_activity_map;
+
+    x->act_zbin_adj = 0;
+
+    x->partition_info = x->pi;
+
+    xd->mode_info_context = cm->mi;
+    xd->mode_info_stride = cm->mode_info_stride;
+
+    xd->frame_type = cm->frame_type;
+
+    /* reset intra mode contexts */
+    if (cm->frame_type == KEY_FRAME)
+        vp8_init_mbmode_probs(cm);
+
+    /* Copy data over into macro block data structures. */
+    x->src = * cpi->Source;
+    xd->pre = cm->yv12_fb[cm->lst_fb_idx];
+    xd->dst = cm->yv12_fb[cm->new_fb_idx];
+
+    /* set up frame for intra coded blocks */
+    vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]);
+
+    vp8_build_block_offsets(x);
+
+    xd->mode_info_context->mbmi.mode = DC_PRED;
+    xd->mode_info_context->mbmi.uv_mode = DC_PRED;
+
+    xd->left_context = &cm->left_context;
+
+    x->mvc = cm->fc.mvc;
+
+    memset(cm->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols);
+
+    /* Special case treatment when GF and ARF are not sensible options
+     * for reference
+     */
+    if (cpi->ref_frame_flags == VP8_LAST_FRAME)
+        vp8_calc_ref_frame_costs(x->ref_frame_cost,
+                                 cpi->prob_intra_coded,255,128);
+    else if ((cpi->oxcf.number_of_layers > 1) &&
+               (cpi->ref_frame_flags == VP8_GOLD_FRAME))
+        vp8_calc_ref_frame_costs(x->ref_frame_cost,
+                                 cpi->prob_intra_coded,1,255);
+    else if ((cpi->oxcf.number_of_layers > 1) &&
+                (cpi->ref_frame_flags == VP8_ALTR_FRAME))
+        vp8_calc_ref_frame_costs(x->ref_frame_cost,
+                                 cpi->prob_intra_coded,1,1);
+    else
+        vp8_calc_ref_frame_costs(x->ref_frame_cost,
+                                 cpi->prob_intra_coded,
+                                 cpi->prob_last_coded,
+                                 cpi->prob_gf_coded);
+
+    xd->fullpixel_mask = 0xffffffff;
+    if(cm->full_pixel)
+        xd->fullpixel_mask = 0xfffffff8;
+
+    vp8_zero(x->coef_counts);
+    vp8_zero(x->ymode_count);
+    vp8_zero(x->uv_mode_count)
+    x->prediction_error = 0;
+    x->intra_error = 0;
+    vp8_zero(x->count_mb_ref_frame_usage);
+}
+
+static void sum_coef_counts(MACROBLOCK *x, MACROBLOCK *x_thread)
+{
+    int i = 0;
+    do
+    {
+        int j = 0;
+        do
+        {
+            int k = 0;
+            do
+            {
+                /* at every context */
+
+                /* calc probs and branch cts for this frame only */
+                int t = 0;      /* token/prob index */
+
+                do
+                {
+                    x->coef_counts [i][j][k][t] +=
+                        x_thread->coef_counts [i][j][k][t];
+                }
+                while (++t < ENTROPY_NODES);
+            }
+            while (++k < PREV_COEF_CONTEXTS);
+        }
+        while (++j < COEF_BANDS);
+    }
+    while (++i < BLOCK_TYPES);
+}
+
+void vp8_encode_frame(VP8_COMP *cpi)
+{
+    int mb_row;
+    MACROBLOCK *const x = & cpi->mb;
+    VP8_COMMON *const cm = & cpi->common;
+    MACROBLOCKD *const xd = & x->e_mbd;
+    TOKENEXTRA *tp = cpi->tok;
+    int segment_counts[MAX_MB_SEGMENTS];
+    int totalrate;
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+    BOOL_CODER * bc = &cpi->bc[1]; /* bc[0] is for control partition */
+    const int num_part = (1 << cm->multi_token_partition);
+#endif
+
+    memset(segment_counts, 0, sizeof(segment_counts));
+    totalrate = 0;
+
+    if (cpi->compressor_speed == 2)
+    {
+        if (cpi->oxcf.cpu_used < 0)
+            cpi->Speed = -(cpi->oxcf.cpu_used);
+        else
+            vp8_auto_select_speed(cpi);
+    }
+
+    /* Functions setup for all frame types so we can use MC in AltRef */
+    if(!cm->use_bilinear_mc_filter)
+    {
+        xd->subpixel_predict        = vp8_sixtap_predict4x4;
+        xd->subpixel_predict8x4     = vp8_sixtap_predict8x4;
+        xd->subpixel_predict8x8     = vp8_sixtap_predict8x8;
+        xd->subpixel_predict16x16   = vp8_sixtap_predict16x16;
+    }
+    else
+    {
+        xd->subpixel_predict        = vp8_bilinear_predict4x4;
+        xd->subpixel_predict8x4     = vp8_bilinear_predict8x4;
+        xd->subpixel_predict8x8     = vp8_bilinear_predict8x8;
+        xd->subpixel_predict16x16   = vp8_bilinear_predict16x16;
+    }
+
+    cpi->mb.skip_true_count = 0;
+    cpi->tok_count = 0;
+
+#if 0
+    /* Experimental code */
+    cpi->frame_distortion = 0;
+    cpi->last_mb_distortion = 0;
+#endif
+
+    xd->mode_info_context = cm->mi;
+
+    vp8_zero(cpi->mb.MVcount);
+
+    vp8cx_frame_init_quantizer(cpi);
+
+    vp8_initialize_rd_consts(cpi, x,
+                             vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
+
+    vp8cx_initialize_me_consts(cpi, cm->base_qindex);
+
+    if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
+    {
+        /* Initialize encode frame context. */
+        init_encode_frame_mb_context(cpi);
+
+        /* Build a frame level activity map */
+        build_activity_map(cpi);
+    }
+
+    /* re-init encode frame context. */
+    init_encode_frame_mb_context(cpi);
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+    {
+        int i;
+        for(i = 0; i < num_part; i++)
+        {
+            vp8_start_encode(&bc[i], cpi->partition_d[i + 1],
+                    cpi->partition_d_end[i + 1]);
+            bc[i].error = &cm->error;
+        }
+    }
+
+#endif
+
+    {
+        struct vpx_usec_timer  emr_timer;
+        vpx_usec_timer_start(&emr_timer);
+
+#if CONFIG_MULTITHREAD
+        if (cpi->b_multi_threaded)
+        {
+            int i;
+
+            vp8cx_init_mbrthread_data(cpi, x, cpi->mb_row_ei,
+                                      cpi->encoding_thread_count);
+
+            for (i = 0; i < cm->mb_rows; i++)
+                cpi->mt_current_mb_col[i] = -1;
+
+            for (i = 0; i < cpi->encoding_thread_count; i++)
+            {
+                sem_post(&cpi->h_event_start_encoding[i]);
+            }
+
+            for (mb_row = 0; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1))
+            {
+                vp8_zero(cm->left_context)
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                tp = cpi->tok;
+#else
+                tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24);
+#endif
+
+                encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
+
+                /* adjust to the next row of mbs */
+                x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
+                x->src.u_buffer +=  8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
+                x->src.v_buffer +=  8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
+
+                xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
+                x->partition_info  += xd->mode_info_stride * cpi->encoding_thread_count;
+                x->gf_active_ptr   += cm->mb_cols * cpi->encoding_thread_count;
+
+                if(mb_row == cm->mb_rows - 1)
+                {
+                    sem_post(&cpi->h_event_end_encoding); /* signal frame encoding end */
+                }
+            }
+
+            sem_wait(&cpi->h_event_end_encoding); /* wait for other threads to finish */
+
+            for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
+            {
+                cpi->tok_count += (unsigned int)
+                  (cpi->tplist[mb_row].stop - cpi->tplist[mb_row].start);
+            }
+
+            if (xd->segmentation_enabled)
+            {
+                int j;
+
+                if (xd->segmentation_enabled)
+                {
+                    for (i = 0; i < cpi->encoding_thread_count; i++)
+                    {
+                        for (j = 0; j < 4; j++)
+                            segment_counts[j] += cpi->mb_row_ei[i].segment_counts[j];
+                    }
+                }
+            }
+
+            for (i = 0; i < cpi->encoding_thread_count; i++)
+            {
+                int mode_count;
+                int c_idx;
+                totalrate += cpi->mb_row_ei[i].totalrate;
+
+                cpi->mb.skip_true_count += cpi->mb_row_ei[i].mb.skip_true_count;
+
+                for(mode_count = 0; mode_count < VP8_YMODES; mode_count++)
+                    cpi->mb.ymode_count[mode_count] +=
+                        cpi->mb_row_ei[i].mb.ymode_count[mode_count];
+
+                for(mode_count = 0; mode_count < VP8_UV_MODES; mode_count++)
+                    cpi->mb.uv_mode_count[mode_count] +=
+                        cpi->mb_row_ei[i].mb.uv_mode_count[mode_count];
+
+                for(c_idx = 0; c_idx < MVvals; c_idx++)
+                {
+                    cpi->mb.MVcount[0][c_idx] +=
+                        cpi->mb_row_ei[i].mb.MVcount[0][c_idx];
+                    cpi->mb.MVcount[1][c_idx] +=
+                        cpi->mb_row_ei[i].mb.MVcount[1][c_idx];
+                }
+
+                cpi->mb.prediction_error +=
+                    cpi->mb_row_ei[i].mb.prediction_error;
+                cpi->mb.intra_error += cpi->mb_row_ei[i].mb.intra_error;
+
+                for(c_idx = 0; c_idx < MAX_REF_FRAMES; c_idx++)
+                    cpi->mb.count_mb_ref_frame_usage[c_idx] +=
+                        cpi->mb_row_ei[i].mb.count_mb_ref_frame_usage[c_idx];
+
+                for(c_idx = 0; c_idx < MAX_ERROR_BINS; c_idx++)
+                    cpi->mb.error_bins[c_idx] +=
+                        cpi->mb_row_ei[i].mb.error_bins[c_idx];
+
+                /* add up counts for each thread */
+                sum_coef_counts(x, &cpi->mb_row_ei[i].mb);
+            }
+
+        }
+        else
+#endif
+        {
+
+            /* for each macroblock row in image */
+            for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+            {
+                vp8_zero(cm->left_context)
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                tp = cpi->tok;
+#endif
+
+                encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
+
+                /* adjust to the next row of mbs */
+                x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
+                x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
+                x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
+            }
+
+            cpi->tok_count = (unsigned int)(tp - cpi->tok);
+        }
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+        {
+            int i;
+            for(i = 0; i < num_part; i++)
+            {
+                vp8_stop_encode(&bc[i]);
+                cpi->partition_sz[i+1] = bc[i].pos;
+            }
+        }
+#endif
+
+        vpx_usec_timer_mark(&emr_timer);
+        cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer);
+    }
+
+
+    // Work out the segment probabilities if segmentation is enabled
+    // and needs to be updated
+    if (xd->segmentation_enabled && xd->update_mb_segmentation_map)
+    {
+        int tot_count;
+        int i;
+
+        /* Set to defaults */
+        memset(xd->mb_segment_tree_probs, 255 , sizeof(xd->mb_segment_tree_probs));
+
+        tot_count = segment_counts[0] + segment_counts[1] + segment_counts[2] + segment_counts[3];
+
+        if (tot_count)
+        {
+            xd->mb_segment_tree_probs[0] = ((segment_counts[0] + segment_counts[1]) * 255) / tot_count;
+
+            tot_count = segment_counts[0] + segment_counts[1];
+
+            if (tot_count > 0)
+            {
+                xd->mb_segment_tree_probs[1] = (segment_counts[0] * 255) / tot_count;
+            }
+
+            tot_count = segment_counts[2] + segment_counts[3];
+
+            if (tot_count > 0)
+                xd->mb_segment_tree_probs[2] = (segment_counts[2] * 255) / tot_count;
+
+            /* Zero probabilities not allowed */
+            for (i = 0; i < MB_FEATURE_TREE_PROBS; i ++)
+            {
+                if (xd->mb_segment_tree_probs[i] == 0)
+                    xd->mb_segment_tree_probs[i] = 1;
+            }
+        }
+    }
+
+    /* projected_frame_size in units of BYTES */
+    cpi->projected_frame_size = totalrate >> 8;
+
+    /* Make a note of the percentage MBs coded Intra. */
+    if (cm->frame_type == KEY_FRAME)
+    {
+        cpi->this_frame_percent_intra = 100;
+    }
+    else
+    {
+        int tot_modes;
+
+        tot_modes = cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME]
+                    + cpi->mb.count_mb_ref_frame_usage[LAST_FRAME]
+                    + cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME]
+                    + cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME];
+
+        if (tot_modes)
+            cpi->this_frame_percent_intra =
+                cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME] * 100 / tot_modes;
+
+    }
+
+#if ! CONFIG_REALTIME_ONLY
+    /* Adjust the projected reference frame usage probability numbers to
+     * reflect what we have just seen. This may be useful when we make
+     * multiple iterations of the recode loop rather than continuing to use
+     * values from the previous frame.
+     */
+    if ((cm->frame_type != KEY_FRAME) && ((cpi->oxcf.number_of_layers > 1) ||
+        (!cm->refresh_alt_ref_frame && !cm->refresh_golden_frame)))
+    {
+      vp8_convert_rfct_to_prob(cpi);
+    }
+#endif
+}
+void vp8_setup_block_ptrs(MACROBLOCK *x)
+{
+    int r, c;
+    int i;
+
+    for (r = 0; r < 4; r++)
+    {
+        for (c = 0; c < 4; c++)
+        {
+            x->block[r*4+c].src_diff = x->src_diff + r * 4 * 16 + c * 4;
+        }
+    }
+
+    for (r = 0; r < 2; r++)
+    {
+        for (c = 0; c < 2; c++)
+        {
+            x->block[16 + r*2+c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4;
+        }
+    }
+
+
+    for (r = 0; r < 2; r++)
+    {
+        for (c = 0; c < 2; c++)
+        {
+            x->block[20 + r*2+c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4;
+        }
+    }
+
+    x->block[24].src_diff = x->src_diff + 384;
+
+
+    for (i = 0; i < 25; i++)
+    {
+        x->block[i].coeff = x->coeff + i * 16;
+    }
+}
+
+void vp8_build_block_offsets(MACROBLOCK *x)
+{
+    int block = 0;
+    int br, bc;
+
+    vp8_build_block_doffsets(&x->e_mbd);
+
+    /* y blocks */
+    x->thismb_ptr = &x->thismb[0];
+    for (br = 0; br < 4; br++)
+    {
+        for (bc = 0; bc < 4; bc++)
+        {
+            BLOCK *this_block = &x->block[block];
+            this_block->base_src = &x->thismb_ptr;
+            this_block->src_stride = 16;
+            this_block->src = 4 * br * 16 + 4 * bc;
+            ++block;
+        }
+    }
+
+    /* u blocks */
+    for (br = 0; br < 2; br++)
+    {
+        for (bc = 0; bc < 2; bc++)
+        {
+            BLOCK *this_block = &x->block[block];
+            this_block->base_src = &x->src.u_buffer;
+            this_block->src_stride = x->src.uv_stride;
+            this_block->src = 4 * br * this_block->src_stride + 4 * bc;
+            ++block;
+        }
+    }
+
+    /* v blocks */
+    for (br = 0; br < 2; br++)
+    {
+        for (bc = 0; bc < 2; bc++)
+        {
+            BLOCK *this_block = &x->block[block];
+            this_block->base_src = &x->src.v_buffer;
+            this_block->src_stride = x->src.uv_stride;
+            this_block->src = 4 * br * this_block->src_stride + 4 * bc;
+            ++block;
+        }
+    }
+}
+
+static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x)
+{
+    const MACROBLOCKD *xd = & x->e_mbd;
+    const MB_PREDICTION_MODE m = xd->mode_info_context->mbmi.mode;
+    const MB_PREDICTION_MODE uvm = xd->mode_info_context->mbmi.uv_mode;
+
+#ifdef MODE_STATS
+    const int is_key = cpi->common.frame_type == KEY_FRAME;
+
+    ++ (is_key ? uv_modes : inter_uv_modes)[uvm];
+
+    if (m == B_PRED)
+    {
+        unsigned int *const bct = is_key ? b_modes : inter_b_modes;
+
+        int b = 0;
+
+        do
+        {
+            ++ bct[xd->block[b].bmi.mode];
+        }
+        while (++b < 16);
+    }
+
+#else
+    (void)cpi;
+#endif
+
+    ++x->ymode_count[m];
+    ++x->uv_mode_count[uvm];
+
+}
+
+/* Experimental stub function to create a per MB zbin adjustment based on
+ * some previously calculated measure of MB activity.
+ */
+static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x )
+{
+#if USE_ACT_INDEX
+    x->act_zbin_adj = *(x->mb_activity_ptr);
+#else
+    int64_t a;
+    int64_t b;
+    int64_t act = *(x->mb_activity_ptr);
+
+    /* Apply the masking to the RD multiplier. */
+    a = act + 4*cpi->activity_avg;
+    b = 4*act + cpi->activity_avg;
+
+    if ( act > cpi->activity_avg )
+        x->act_zbin_adj = (int)(((int64_t)b + (a>>1))/a) - 1;
+    else
+        x->act_zbin_adj = 1 - (int)(((int64_t)a + (b>>1))/b);
+#endif
+}
+
+int vp8cx_encode_intra_macroblock(VP8_COMP *cpi, MACROBLOCK *x,
+                                  TOKENEXTRA **t)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+    int rate;
+
+    if (cpi->sf.RD && cpi->compressor_speed != 2)
+        vp8_rd_pick_intra_mode(x, &rate);
+    else
+        vp8_pick_intra_mode(x, &rate);
+
+    if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
+    {
+        adjust_act_zbin( cpi, x );
+        vp8_update_zbin_extra(cpi, x);
+    }
+
+    if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED)
+        vp8_encode_intra4x4mby(x);
+    else
+        vp8_encode_intra16x16mby(x);
+
+    vp8_encode_intra16x16mbuv(x);
+
+    sum_intra_stats(cpi, x);
+
+    vp8_tokenize_mb(cpi, x, t);
+
+    if (xd->mode_info_context->mbmi.mode != B_PRED)
+        vp8_inverse_transform_mby(xd);
+
+    vp8_dequant_idct_add_uv_block
+                    (xd->qcoeff+16*16, xd->dequant_uv,
+                     xd->dst.u_buffer, xd->dst.v_buffer,
+                     xd->dst.uv_stride, xd->eobs+16);
+    return rate;
+}
+#ifdef SPEEDSTATS
+extern int cnt_pm;
+#endif
+
+extern void vp8_fix_contexts(MACROBLOCKD *x);
+
+int vp8cx_encode_inter_macroblock
+(
+    VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
+    int recon_yoffset, int recon_uvoffset,
+    int mb_row, int mb_col
+)
+{
+    MACROBLOCKD *const xd = &x->e_mbd;
+    int intra_error = 0;
+    int rate;
+    int distortion;
+
+    x->skip = 0;
+
+    if (xd->segmentation_enabled)
+        x->encode_breakout = cpi->segment_encode_breakout[xd->mode_info_context->mbmi.segment_id];
+    else
+        x->encode_breakout = cpi->oxcf.encode_breakout;
+
+#if CONFIG_TEMPORAL_DENOISING
+    /* Reset the best sse mode/mv for each macroblock. */
+    x->best_reference_frame = INTRA_FRAME;
+    x->best_zeromv_reference_frame = INTRA_FRAME;
+    x->best_sse_inter_mode = 0;
+    x->best_sse_mv.as_int = 0;
+    x->need_to_clamp_best_mvs = 0;
+#endif
+
+    if (cpi->sf.RD)
+    {
+        int zbin_mode_boost_enabled = x->zbin_mode_boost_enabled;
+
+        /* Are we using the fast quantizer for the mode selection? */
+        if(cpi->sf.use_fastquant_for_pick)
+        {
+            x->quantize_b      = vp8_fast_quantize_b;
+
+            /* the fast quantizer does not use zbin_extra, so
+             * do not recalculate */
+            x->zbin_mode_boost_enabled = 0;
+        }
+        vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate,
+                               &distortion, &intra_error, mb_row, mb_col);
+
+        /* switch back to the regular quantizer for the encode */
+        if (cpi->sf.improved_quant)
+        {
+            x->quantize_b      = vp8_regular_quantize_b;
+        }
+
+        /* restore cpi->zbin_mode_boost_enabled */
+        x->zbin_mode_boost_enabled = zbin_mode_boost_enabled;
+
+    }
+    else
+    {
+        vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate,
+                            &distortion, &intra_error, mb_row, mb_col);
+    }
+
+    x->prediction_error += distortion;
+    x->intra_error += intra_error;
+
+    if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
+    {
+        /* Adjust the zbin based on this MB rate. */
+        adjust_act_zbin( cpi, x );
+    }
+
+#if 0
+    /* Experimental RD code */
+    cpi->frame_distortion += distortion;
+    cpi->last_mb_distortion = distortion;
+#endif
+
+    /* MB level adjutment to quantizer setup */
+    if (xd->segmentation_enabled)
+    {
+        /* If cyclic update enabled */
+        if (cpi->current_layer == 0 && cpi->cyclic_refresh_mode_enabled)
+        {
+            /* Clear segment_id back to 0 if not coded (last frame 0,0) */
+            if ((xd->mode_info_context->mbmi.segment_id == 1) &&
+                ((xd->mode_info_context->mbmi.ref_frame != LAST_FRAME) || (xd->mode_info_context->mbmi.mode != ZEROMV)))
+            {
+                xd->mode_info_context->mbmi.segment_id = 0;
+
+                /* segment_id changed, so update */
+                vp8cx_mb_init_quantizer(cpi, x, 1);
+            }
+        }
+    }
+
+    {
+        /* Experimental code.
+         * Special case for gf and arf zeromv modes, for 1 temporal layer.
+         * Increase zbin size to supress noise.
+         */
+        x->zbin_mode_boost = 0;
+        if (x->zbin_mode_boost_enabled)
+        {
+            if ( xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME )
+            {
+                if (xd->mode_info_context->mbmi.mode == ZEROMV)
+                {
+                    if (xd->mode_info_context->mbmi.ref_frame != LAST_FRAME &&
+                        cpi->oxcf.number_of_layers == 1)
+                        x->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
+                    else
+                        x->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST;
+                }
+                else if (xd->mode_info_context->mbmi.mode == SPLITMV)
+                    x->zbin_mode_boost = 0;
+                else
+                    x->zbin_mode_boost = MV_ZBIN_BOOST;
+            }
+        }
+
+        /* The fast quantizer doesn't use zbin_extra, only do so with
+         * the regular quantizer. */
+        if (cpi->sf.improved_quant)
+            vp8_update_zbin_extra(cpi, x);
+    }
+
+    x->count_mb_ref_frame_usage[xd->mode_info_context->mbmi.ref_frame] ++;
+
+    if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
+    {
+        vp8_encode_intra16x16mbuv(x);
+
+        if (xd->mode_info_context->mbmi.mode == B_PRED)
+        {
+            vp8_encode_intra4x4mby(x);
+        }
+        else
+        {
+            vp8_encode_intra16x16mby(x);
+        }
+
+        sum_intra_stats(cpi, x);
+    }
+    else
+    {
+        int ref_fb_idx;
+
+        if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)
+            ref_fb_idx = cpi->common.lst_fb_idx;
+        else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME)
+            ref_fb_idx = cpi->common.gld_fb_idx;
+        else
+            ref_fb_idx = cpi->common.alt_fb_idx;
+
+        xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset;
+        xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset;
+        xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset;
+
+        if (!x->skip)
+        {
+            vp8_encode_inter16x16(x);
+        }
+        else
+            vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer,
+                                           xd->dst.u_buffer, xd->dst.v_buffer,
+                                           xd->dst.y_stride, xd->dst.uv_stride);
+
+    }
+
+    if (!x->skip)
+    {
+        vp8_tokenize_mb(cpi, x, t);
+
+        if (xd->mode_info_context->mbmi.mode != B_PRED)
+            vp8_inverse_transform_mby(xd);
+
+        vp8_dequant_idct_add_uv_block
+                        (xd->qcoeff+16*16, xd->dequant_uv,
+                         xd->dst.u_buffer, xd->dst.v_buffer,
+                         xd->dst.uv_stride, xd->eobs+16);
+    }
+    else
+    {
+        /* always set mb_skip_coeff as it is needed by the loopfilter */
+        xd->mode_info_context->mbmi.mb_skip_coeff = 1;
+
+        if (cpi->common.mb_no_coeff_skip)
+        {
+            x->skip_true_count ++;
+            vp8_fix_contexts(xd);
+        }
+        else
+        {
+            vp8_stuff_mb(cpi, x, t);
+        }
+    }
+
+    return rate;
+}
diff --git a/media/libvpx/vp8/encoder/encodeframe.h b/media/libvpx/vp8/encoder/encodeframe.h
new file mode 100644
index 000000000..e185c1035
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodeframe.h
@@ -0,0 +1,35 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef VP8_ENCODER_ENCODEFRAME_H_
+#define VP8_ENCODER_ENCODEFRAME_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x);
+
+extern void vp8_build_block_offsets(MACROBLOCK *x);
+
+extern void vp8_setup_block_ptrs(MACROBLOCK *x);
+
+extern void vp8_encode_frame(VP8_COMP *cpi);
+
+extern int vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x,
+        TOKENEXTRA **t,
+        int recon_yoffset, int recon_uvoffset,
+        int mb_row, int mb_col);
+
+extern int vp8cx_encode_intra_macroblock(VP8_COMP *cpi, MACROBLOCK *x,
+        TOKENEXTRA **t);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_ENCODEFRAME_H_
diff --git a/media/libvpx/vp8/encoder/encodeintra.c b/media/libvpx/vp8/encoder/encodeintra.c
new file mode 100644
index 000000000..e2de5eecb
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodeintra.c
@@ -0,0 +1,139 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "quantize.h"
+#include "vp8/common/reconintra4x4.h"
+#include "encodemb.h"
+#include "vp8/common/invtrans.h"
+#include "encodeintra.h"
+
+
+int vp8_encode_intra(VP8_COMP *cpi, MACROBLOCK *x, int use_dc_pred)
+{
+
+    int i;
+    int intra_pred_var = 0;
+    (void) cpi;
+
+    if (use_dc_pred)
+    {
+        x->e_mbd.mode_info_context->mbmi.mode = DC_PRED;
+        x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+        x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
+
+        vp8_encode_intra16x16mby(x);
+
+        vp8_inverse_transform_mby(&x->e_mbd);
+    }
+    else
+    {
+        for (i = 0; i < 16; i++)
+        {
+            x->e_mbd.block[i].bmi.as_mode = B_DC_PRED;
+            vp8_encode_intra4x4block(x, i);
+        }
+    }
+
+    intra_pred_var = vpx_get_mb_ss(x->src_diff);
+
+    return intra_pred_var;
+}
+
+void vp8_encode_intra4x4block(MACROBLOCK *x, int ib)
+{
+    BLOCKD *b = &x->e_mbd.block[ib];
+    BLOCK *be = &x->block[ib];
+    int dst_stride = x->e_mbd.dst.y_stride;
+    unsigned char *dst = x->e_mbd.dst.y_buffer + b->offset;
+    unsigned char *Above = dst - dst_stride;
+    unsigned char *yleft = dst - 1;
+    unsigned char top_left = Above[-1];
+
+    vp8_intra4x4_predict(Above, yleft, dst_stride, b->bmi.as_mode,
+                         b->predictor, 16, top_left);
+
+    vp8_subtract_b(be, b, 16);
+
+    x->short_fdct4x4(be->src_diff, be->coeff, 32);
+
+    x->quantize_b(be, b);
+
+    if (*b->eob > 1)
+    {
+      vp8_short_idct4x4llm(b->dqcoeff, b->predictor, 16, dst, dst_stride);
+    }
+    else
+    {
+      vp8_dc_only_idct_add(b->dqcoeff[0], b->predictor, 16, dst, dst_stride);
+    }
+}
+
+void vp8_encode_intra4x4mby(MACROBLOCK *mb)
+{
+    int i;
+
+    MACROBLOCKD *xd = &mb->e_mbd;
+    intra_prediction_down_copy(xd, xd->dst.y_buffer - xd->dst.y_stride + 16);
+
+    for (i = 0; i < 16; i++)
+        vp8_encode_intra4x4block(mb, i);
+    return;
+}
+
+void vp8_encode_intra16x16mby(MACROBLOCK *x)
+{
+    BLOCK *b = &x->block[0];
+    MACROBLOCKD *xd = &x->e_mbd;
+
+    vp8_build_intra_predictors_mby_s(xd,
+                                         xd->dst.y_buffer - xd->dst.y_stride,
+                                         xd->dst.y_buffer - 1,
+                                         xd->dst.y_stride,
+                                         xd->dst.y_buffer,
+                                         xd->dst.y_stride);
+
+    vp8_subtract_mby(x->src_diff, *(b->base_src),
+        b->src_stride, xd->dst.y_buffer, xd->dst.y_stride);
+
+    vp8_transform_intra_mby(x);
+
+    vp8_quantize_mby(x);
+
+    if (x->optimize)
+        vp8_optimize_mby(x);
+}
+
+void vp8_encode_intra16x16mbuv(MACROBLOCK *x)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+
+    vp8_build_intra_predictors_mbuv_s(xd, xd->dst.u_buffer - xd->dst.uv_stride,
+                                      xd->dst.v_buffer - xd->dst.uv_stride,
+                                      xd->dst.u_buffer - 1,
+                                      xd->dst.v_buffer - 1,
+                                      xd->dst.uv_stride,
+                                      xd->dst.u_buffer, xd->dst.v_buffer,
+                                      xd->dst.uv_stride);
+
+    vp8_subtract_mbuv(x->src_diff, x->src.u_buffer,
+        x->src.v_buffer, x->src.uv_stride, xd->dst.u_buffer,
+        xd->dst.v_buffer, xd->dst.uv_stride);
+
+    vp8_transform_mbuv(x);
+
+    vp8_quantize_mbuv(x);
+
+    if (x->optimize)
+        vp8_optimize_mbuv(x);
+}
diff --git a/media/libvpx/vp8/encoder/encodeintra.h b/media/libvpx/vp8/encoder/encodeintra.h
new file mode 100644
index 000000000..a8d0284d2
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodeintra.h
@@ -0,0 +1,29 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_ENCODEINTRA_H_
+#define VP8_ENCODER_ENCODEINTRA_H_
+#include "onyx_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int vp8_encode_intra(VP8_COMP *cpi, MACROBLOCK *x, int use_dc_pred);
+void vp8_encode_intra16x16mby(MACROBLOCK *x);
+void vp8_encode_intra16x16mbuv(MACROBLOCK *x);
+void vp8_encode_intra4x4mby(MACROBLOCK *mb);
+void vp8_encode_intra4x4block(MACROBLOCK *x, int ib);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_ENCODEINTRA_H_
diff --git a/media/libvpx/vp8/encoder/encodemb.c b/media/libvpx/vp8/encoder/encodemb.c
new file mode 100644
index 000000000..dfd0a237a
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodemb.c
@@ -0,0 +1,641 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "encodemb.h"
+#include "vp8/common/reconinter.h"
+#include "quantize.h"
+#include "tokenize.h"
+#include "vp8/common/invtrans.h"
+#include "vpx_mem/vpx_mem.h"
+#include "rdopt.h"
+
+void vp8_subtract_b_c(BLOCK *be, BLOCKD *bd, int pitch)
+{
+    unsigned char *src_ptr = (*(be->base_src) + be->src);
+    short *diff_ptr = be->src_diff;
+    unsigned char *pred_ptr = bd->predictor;
+    int src_stride = be->src_stride;
+
+    int r, c;
+
+    for (r = 0; r < 4; r++)
+    {
+        for (c = 0; c < 4; c++)
+        {
+            diff_ptr[c] = src_ptr[c] - pred_ptr[c];
+        }
+
+        diff_ptr += pitch;
+        pred_ptr += pitch;
+        src_ptr  += src_stride;
+    }
+}
+
+void vp8_subtract_mbuv_c(short *diff, unsigned char *usrc, unsigned char *vsrc,
+                         int src_stride, unsigned char *upred,
+                         unsigned char *vpred, int pred_stride)
+{
+    short *udiff = diff + 256;
+    short *vdiff = diff + 320;
+
+    int r, c;
+
+    for (r = 0; r < 8; r++)
+    {
+        for (c = 0; c < 8; c++)
+        {
+            udiff[c] = usrc[c] - upred[c];
+        }
+
+        udiff += 8;
+        upred += pred_stride;
+        usrc  += src_stride;
+    }
+
+    for (r = 0; r < 8; r++)
+    {
+        for (c = 0; c < 8; c++)
+        {
+            vdiff[c] = vsrc[c] - vpred[c];
+        }
+
+        vdiff += 8;
+        vpred += pred_stride;
+        vsrc  += src_stride;
+    }
+}
+
+void vp8_subtract_mby_c(short *diff, unsigned char *src, int src_stride,
+                        unsigned char *pred, int pred_stride)
+{
+    int r, c;
+
+    for (r = 0; r < 16; r++)
+    {
+        for (c = 0; c < 16; c++)
+        {
+            diff[c] = src[c] - pred[c];
+        }
+
+        diff += 16;
+        pred += pred_stride;
+        src  += src_stride;
+    }
+}
+
+static void vp8_subtract_mb(MACROBLOCK *x)
+{
+    BLOCK *b = &x->block[0];
+
+    vp8_subtract_mby(x->src_diff, *(b->base_src),
+        b->src_stride, x->e_mbd.dst.y_buffer, x->e_mbd.dst.y_stride);
+    vp8_subtract_mbuv(x->src_diff, x->src.u_buffer,
+        x->src.v_buffer, x->src.uv_stride, x->e_mbd.dst.u_buffer,
+        x->e_mbd.dst.v_buffer, x->e_mbd.dst.uv_stride);
+}
+
+static void build_dcblock(MACROBLOCK *x)
+{
+    short *src_diff_ptr = &x->src_diff[384];
+    int i;
+
+    for (i = 0; i < 16; i++)
+    {
+        src_diff_ptr[i] = x->coeff[i * 16];
+    }
+}
+
+void vp8_transform_mbuv(MACROBLOCK *x)
+{
+    int i;
+
+    for (i = 16; i < 24; i += 2)
+    {
+        x->short_fdct8x4(&x->block[i].src_diff[0],
+            &x->block[i].coeff[0], 16);
+    }
+}
+
+
+void vp8_transform_intra_mby(MACROBLOCK *x)
+{
+    int i;
+
+    for (i = 0; i < 16; i += 2)
+    {
+        x->short_fdct8x4(&x->block[i].src_diff[0],
+            &x->block[i].coeff[0], 32);
+    }
+
+    /* build dc block from 16 y dc values */
+    build_dcblock(x);
+
+    /* do 2nd order transform on the dc block */
+    x->short_walsh4x4(&x->block[24].src_diff[0],
+        &x->block[24].coeff[0], 8);
+
+}
+
+
+static void transform_mb(MACROBLOCK *x)
+{
+    int i;
+
+    for (i = 0; i < 16; i += 2)
+    {
+        x->short_fdct8x4(&x->block[i].src_diff[0],
+            &x->block[i].coeff[0], 32);
+    }
+
+    /* build dc block from 16 y dc values */
+    if (x->e_mbd.mode_info_context->mbmi.mode != SPLITMV)
+        build_dcblock(x);
+
+    for (i = 16; i < 24; i += 2)
+    {
+        x->short_fdct8x4(&x->block[i].src_diff[0],
+            &x->block[i].coeff[0], 16);
+    }
+
+    /* do 2nd order transform on the dc block */
+    if (x->e_mbd.mode_info_context->mbmi.mode != SPLITMV)
+        x->short_walsh4x4(&x->block[24].src_diff[0],
+        &x->block[24].coeff[0], 8);
+
+}
+
+
+static void transform_mby(MACROBLOCK *x)
+{
+    int i;
+
+    for (i = 0; i < 16; i += 2)
+    {
+        x->short_fdct8x4(&x->block[i].src_diff[0],
+            &x->block[i].coeff[0], 32);
+    }
+
+    /* build dc block from 16 y dc values */
+    if (x->e_mbd.mode_info_context->mbmi.mode != SPLITMV)
+    {
+        build_dcblock(x);
+        x->short_walsh4x4(&x->block[24].src_diff[0],
+            &x->block[24].coeff[0], 8);
+    }
+}
+
+
+
+#define RDTRUNC(RM,DM,R,D) ( (128+(R)*(RM)) & 0xFF )
+
+typedef struct vp8_token_state vp8_token_state;
+
+struct vp8_token_state{
+  int           rate;
+  int           error;
+  signed char   next;
+  signed char   token;
+  short         qc;
+};
+
+/* TODO: experiments to find optimal multiple numbers */
+#define Y1_RD_MULT 4
+#define UV_RD_MULT 2
+#define Y2_RD_MULT 16
+
+static const int plane_rd_mult[4]=
+{
+    Y1_RD_MULT,
+    Y2_RD_MULT,
+    UV_RD_MULT,
+    Y1_RD_MULT
+};
+
+static void optimize_b(MACROBLOCK *mb, int ib, int type,
+                       ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l)
+{
+    BLOCK *b;
+    BLOCKD *d;
+    vp8_token_state tokens[17][2];
+    unsigned best_mask[2];
+    const short *dequant_ptr;
+    const short *coeff_ptr;
+    short *qcoeff_ptr;
+    short *dqcoeff_ptr;
+    int eob;
+    int i0;
+    int rc;
+    int x;
+    int sz = 0;
+    int next;
+    int rdmult;
+    int rddiv;
+    int final_eob;
+    int rd_cost0;
+    int rd_cost1;
+    int rate0;
+    int rate1;
+    int error0;
+    int error1;
+    int t0;
+    int t1;
+    int best;
+    int band;
+    int pt;
+    int i;
+    int err_mult = plane_rd_mult[type];
+
+    b = &mb->block[ib];
+    d = &mb->e_mbd.block[ib];
+
+    dequant_ptr = d->dequant;
+    coeff_ptr = b->coeff;
+    qcoeff_ptr = d->qcoeff;
+    dqcoeff_ptr = d->dqcoeff;
+    i0 = !type;
+    eob = *d->eob;
+
+    /* Now set up a Viterbi trellis to evaluate alternative roundings. */
+    rdmult = mb->rdmult * err_mult;
+    if(mb->e_mbd.mode_info_context->mbmi.ref_frame==INTRA_FRAME)
+        rdmult = (rdmult * 9)>>4;
+
+    rddiv = mb->rddiv;
+    best_mask[0] = best_mask[1] = 0;
+    /* Initialize the sentinel node of the trellis. */
+    tokens[eob][0].rate = 0;
+    tokens[eob][0].error = 0;
+    tokens[eob][0].next = 16;
+    tokens[eob][0].token = DCT_EOB_TOKEN;
+    tokens[eob][0].qc = 0;
+    *(tokens[eob] + 1) = *(tokens[eob] + 0);
+    next = eob;
+    for (i = eob; i-- > i0;)
+    {
+        int base_bits;
+        int d2;
+        int dx;
+
+        rc = vp8_default_zig_zag1d[i];
+        x = qcoeff_ptr[rc];
+        /* Only add a trellis state for non-zero coefficients. */
+        if (x)
+        {
+            int shortcut=0;
+            error0 = tokens[next][0].error;
+            error1 = tokens[next][1].error;
+            /* Evaluate the first possibility for this state. */
+            rate0 = tokens[next][0].rate;
+            rate1 = tokens[next][1].rate;
+            t0 = (vp8_dct_value_tokens_ptr + x)->Token;
+            /* Consider both possible successor states. */
+            if (next < 16)
+            {
+                band = vp8_coef_bands[i + 1];
+                pt = vp8_prev_token_class[t0];
+                rate0 +=
+                    mb->token_costs[type][band][pt][tokens[next][0].token];
+                rate1 +=
+                    mb->token_costs[type][band][pt][tokens[next][1].token];
+            }
+            rd_cost0 = RDCOST(rdmult, rddiv, rate0, error0);
+            rd_cost1 = RDCOST(rdmult, rddiv, rate1, error1);
+            if (rd_cost0 == rd_cost1)
+            {
+                rd_cost0 = RDTRUNC(rdmult, rddiv, rate0, error0);
+                rd_cost1 = RDTRUNC(rdmult, rddiv, rate1, error1);
+            }
+            /* And pick the best. */
+            best = rd_cost1 < rd_cost0;
+            base_bits = *(vp8_dct_value_cost_ptr + x);
+            dx = dqcoeff_ptr[rc] - coeff_ptr[rc];
+            d2 = dx*dx;
+            tokens[i][0].rate = base_bits + (best ? rate1 : rate0);
+            tokens[i][0].error = d2 + (best ? error1 : error0);
+            tokens[i][0].next = next;
+            tokens[i][0].token = t0;
+            tokens[i][0].qc = x;
+            best_mask[0] |= best << i;
+            /* Evaluate the second possibility for this state. */
+            rate0 = tokens[next][0].rate;
+            rate1 = tokens[next][1].rate;
+
+            if((abs(x)*dequant_ptr[rc]>abs(coeff_ptr[rc])) &&
+               (abs(x)*dequant_ptr[rc]<abs(coeff_ptr[rc])+dequant_ptr[rc]))
+                shortcut = 1;
+            else
+                shortcut = 0;
+
+            if(shortcut)
+            {
+                sz = -(x < 0);
+                x -= 2*sz + 1;
+            }
+
+            /* Consider both possible successor states. */
+            if (!x)
+            {
+                /* If we reduced this coefficient to zero, check to see if
+                 *  we need to move the EOB back here.
+                 */
+                t0 = tokens[next][0].token == DCT_EOB_TOKEN ?
+                    DCT_EOB_TOKEN : ZERO_TOKEN;
+                t1 = tokens[next][1].token == DCT_EOB_TOKEN ?
+                    DCT_EOB_TOKEN : ZERO_TOKEN;
+            }
+            else
+            {
+                t0=t1 = (vp8_dct_value_tokens_ptr + x)->Token;
+            }
+            if (next < 16)
+            {
+                band = vp8_coef_bands[i + 1];
+                if(t0!=DCT_EOB_TOKEN)
+                {
+                    pt = vp8_prev_token_class[t0];
+                    rate0 += mb->token_costs[type][band][pt][
+                        tokens[next][0].token];
+                }
+                if(t1!=DCT_EOB_TOKEN)
+                {
+                    pt = vp8_prev_token_class[t1];
+                    rate1 += mb->token_costs[type][band][pt][
+                        tokens[next][1].token];
+                }
+            }
+
+            rd_cost0 = RDCOST(rdmult, rddiv, rate0, error0);
+            rd_cost1 = RDCOST(rdmult, rddiv, rate1, error1);
+            if (rd_cost0 == rd_cost1)
+            {
+                rd_cost0 = RDTRUNC(rdmult, rddiv, rate0, error0);
+                rd_cost1 = RDTRUNC(rdmult, rddiv, rate1, error1);
+            }
+            /* And pick the best. */
+            best = rd_cost1 < rd_cost0;
+            base_bits = *(vp8_dct_value_cost_ptr + x);
+
+            if(shortcut)
+            {
+                dx -= (dequant_ptr[rc] + sz) ^ sz;
+                d2 = dx*dx;
+            }
+            tokens[i][1].rate = base_bits + (best ? rate1 : rate0);
+            tokens[i][1].error = d2 + (best ? error1 : error0);
+            tokens[i][1].next = next;
+            tokens[i][1].token =best?t1:t0;
+            tokens[i][1].qc = x;
+            best_mask[1] |= best << i;
+            /* Finally, make this the new head of the trellis. */
+            next = i;
+        }
+        /* There's no choice to make for a zero coefficient, so we don't
+         *  add a new trellis node, but we do need to update the costs.
+         */
+        else
+        {
+            band = vp8_coef_bands[i + 1];
+            t0 = tokens[next][0].token;
+            t1 = tokens[next][1].token;
+            /* Update the cost of each path if we're past the EOB token. */
+            if (t0 != DCT_EOB_TOKEN)
+            {
+                tokens[next][0].rate += mb->token_costs[type][band][0][t0];
+                tokens[next][0].token = ZERO_TOKEN;
+            }
+            if (t1 != DCT_EOB_TOKEN)
+            {
+                tokens[next][1].rate += mb->token_costs[type][band][0][t1];
+                tokens[next][1].token = ZERO_TOKEN;
+            }
+            /* Don't update next, because we didn't add a new node. */
+        }
+    }
+
+    /* Now pick the best path through the whole trellis. */
+    band = vp8_coef_bands[i + 1];
+    VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+    rate0 = tokens[next][0].rate;
+    rate1 = tokens[next][1].rate;
+    error0 = tokens[next][0].error;
+    error1 = tokens[next][1].error;
+    t0 = tokens[next][0].token;
+    t1 = tokens[next][1].token;
+    rate0 += mb->token_costs[type][band][pt][t0];
+    rate1 += mb->token_costs[type][band][pt][t1];
+    rd_cost0 = RDCOST(rdmult, rddiv, rate0, error0);
+    rd_cost1 = RDCOST(rdmult, rddiv, rate1, error1);
+    if (rd_cost0 == rd_cost1)
+    {
+        rd_cost0 = RDTRUNC(rdmult, rddiv, rate0, error0);
+        rd_cost1 = RDTRUNC(rdmult, rddiv, rate1, error1);
+    }
+    best = rd_cost1 < rd_cost0;
+    final_eob = i0 - 1;
+    for (i = next; i < eob; i = next)
+    {
+        x = tokens[i][best].qc;
+        if (x)
+            final_eob = i;
+        rc = vp8_default_zig_zag1d[i];
+        qcoeff_ptr[rc] = x;
+        dqcoeff_ptr[rc] = x * dequant_ptr[rc];
+        next = tokens[i][best].next;
+        best = (best_mask[best] >> i) & 1;
+    }
+    final_eob++;
+
+    *a = *l = (final_eob != !type);
+    *d->eob = (char)final_eob;
+}
+static void check_reset_2nd_coeffs(MACROBLOCKD *x, int type,
+                                   ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l)
+{
+    int sum=0;
+    int i;
+    BLOCKD *bd = &x->block[24];
+
+    if(bd->dequant[0]>=35 && bd->dequant[1]>=35)
+        return;
+
+    for(i=0;i<(*bd->eob);i++)
+    {
+        int coef = bd->dqcoeff[vp8_default_zig_zag1d[i]];
+        sum+= (coef>=0)?coef:-coef;
+        if(sum>=35)
+            return;
+    }
+    /**************************************************************************
+    our inverse hadamard transform effectively is weighted sum of all 16 inputs
+    with weight either 1 or -1. It has a last stage scaling of (sum+3)>>3. And
+    dc only idct is (dc+4)>>3. So if all the sums are between -35 and 29, the
+    output after inverse wht and idct will be all zero. A sum of absolute value
+    smaller than 35 guarantees all 16 different (+1/-1) weighted sums in wht
+    fall between -35 and +35.
+    **************************************************************************/
+    if(sum < 35)
+    {
+        for(i=0;i<(*bd->eob);i++)
+        {
+            int rc = vp8_default_zig_zag1d[i];
+            bd->qcoeff[rc]=0;
+            bd->dqcoeff[rc]=0;
+        }
+        *bd->eob = 0;
+        *a = *l = (*bd->eob != !type);
+    }
+}
+
+static void optimize_mb(MACROBLOCK *x)
+{
+    int b;
+    int type;
+    int has_2nd_order;
+
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+
+    memcpy(&t_above, x->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, x->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+
+    has_2nd_order = (x->e_mbd.mode_info_context->mbmi.mode != B_PRED
+        && x->e_mbd.mode_info_context->mbmi.mode != SPLITMV);
+    type = has_2nd_order ? PLANE_TYPE_Y_NO_DC : PLANE_TYPE_Y_WITH_DC;
+
+    for (b = 0; b < 16; b++)
+    {
+        optimize_b(x, b, type,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+    }
+
+    for (b = 16; b < 24; b++)
+    {
+        optimize_b(x, b, PLANE_TYPE_UV,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+    }
+
+    if (has_2nd_order)
+    {
+        b=24;
+        optimize_b(x, b, PLANE_TYPE_Y2,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+        check_reset_2nd_coeffs(&x->e_mbd, PLANE_TYPE_Y2,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+    }
+}
+
+
+void vp8_optimize_mby(MACROBLOCK *x)
+{
+    int b;
+    int type;
+    int has_2nd_order;
+
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+
+    if (!x->e_mbd.above_context)
+        return;
+
+    if (!x->e_mbd.left_context)
+        return;
+
+    memcpy(&t_above, x->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, x->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+
+    has_2nd_order = (x->e_mbd.mode_info_context->mbmi.mode != B_PRED
+        && x->e_mbd.mode_info_context->mbmi.mode != SPLITMV);
+    type = has_2nd_order ? PLANE_TYPE_Y_NO_DC : PLANE_TYPE_Y_WITH_DC;
+
+    for (b = 0; b < 16; b++)
+    {
+        optimize_b(x, b, type,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+    }
+
+
+    if (has_2nd_order)
+    {
+        b=24;
+        optimize_b(x, b, PLANE_TYPE_Y2,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+        check_reset_2nd_coeffs(&x->e_mbd, PLANE_TYPE_Y2,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+    }
+}
+
+void vp8_optimize_mbuv(MACROBLOCK *x)
+{
+    int b;
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+
+    if (!x->e_mbd.above_context)
+        return;
+
+    if (!x->e_mbd.left_context)
+        return;
+
+    memcpy(&t_above, x->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, x->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+
+    for (b = 16; b < 24; b++)
+    {
+        optimize_b(x, b, PLANE_TYPE_UV,
+            ta + vp8_block2above[b], tl + vp8_block2left[b]);
+    }
+}
+
+void vp8_encode_inter16x16(MACROBLOCK *x)
+{
+    vp8_build_inter_predictors_mb(&x->e_mbd);
+
+    vp8_subtract_mb(x);
+
+    transform_mb(x);
+
+    vp8_quantize_mb(x);
+
+    if (x->optimize)
+        optimize_mb(x);
+}
+
+/* this funciton is used by first pass only */
+void vp8_encode_inter16x16y(MACROBLOCK *x)
+{
+    BLOCK *b = &x->block[0];
+
+    vp8_build_inter16x16_predictors_mby(&x->e_mbd, x->e_mbd.dst.y_buffer,
+                                        x->e_mbd.dst.y_stride);
+
+    vp8_subtract_mby(x->src_diff, *(b->base_src),
+        b->src_stride, x->e_mbd.dst.y_buffer, x->e_mbd.dst.y_stride);
+
+    transform_mby(x);
+
+    vp8_quantize_mby(x);
+
+    vp8_inverse_transform_mby(&x->e_mbd);
+}
diff --git a/media/libvpx/vp8/encoder/encodemb.h b/media/libvpx/vp8/encoder/encodemb.h
new file mode 100644
index 000000000..0b3ec875e
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodemb.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_ENCODEMB_H_
+#define VP8_ENCODER_ENCODEMB_H_
+
+#include "onyx_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void vp8_encode_inter16x16(MACROBLOCK *x);
+
+void vp8_build_dcblock(MACROBLOCK *b);
+void vp8_transform_mb(MACROBLOCK *mb);
+void vp8_transform_mbuv(MACROBLOCK *x);
+void vp8_transform_intra_mby(MACROBLOCK *x);
+
+void vp8_optimize_mby(MACROBLOCK *x);
+void vp8_optimize_mbuv(MACROBLOCK *x);
+void vp8_encode_inter16x16y(MACROBLOCK *x);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_ENCODEMB_H_
diff --git a/media/libvpx/vp8/encoder/encodemv.c b/media/libvpx/vp8/encoder/encodemv.c
new file mode 100644
index 000000000..2a74ff4ae
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodemv.c
@@ -0,0 +1,380 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vp8/common/common.h"
+#include "encodemv.h"
+#include "vp8/common/entropymode.h"
+#include "vp8/common/systemdependent.h"
+
+#include <math.h>
+
+#ifdef VP8_ENTROPY_STATS
+extern unsigned int active_section;
+#endif
+
+static void encode_mvcomponent(
+    vp8_writer *const w,
+    const int v,
+    const struct mv_context *mvc
+)
+{
+    const vp8_prob *p = mvc->prob;
+    const int x = v < 0 ? -v : v;
+
+    if (x < mvnum_short)     /* Small */
+    {
+        vp8_write(w, 0, p [mvpis_short]);
+        vp8_treed_write(w, vp8_small_mvtree, p + MVPshort, x, 3);
+
+        if (!x)
+            return;         /* no sign bit */
+    }
+    else                    /* Large */
+    {
+        int i = 0;
+
+        vp8_write(w, 1, p [mvpis_short]);
+
+        do
+            vp8_write(w, (x >> i) & 1, p [MVPbits + i]);
+
+        while (++i < 3);
+
+        i = mvlong_width - 1;  /* Skip bit 3, which is sometimes implicit */
+
+        do
+            vp8_write(w, (x >> i) & 1, p [MVPbits + i]);
+
+        while (--i > 3);
+
+        if (x & 0xFFF0)
+            vp8_write(w, (x >> 3) & 1, p [MVPbits + 3]);
+    }
+
+    vp8_write(w, v < 0, p [MVPsign]);
+}
+#if 0
+static int max_mv_r = 0;
+static int max_mv_c = 0;
+#endif
+void vp8_encode_motion_vector(vp8_writer *w, const MV *mv, const MV_CONTEXT *mvc)
+{
+
+#if 0
+    {
+        if (abs(mv->row >> 1) > max_mv_r)
+        {
+            FILE *f = fopen("maxmv.stt", "a");
+            max_mv_r = abs(mv->row >> 1);
+            fprintf(f, "New Mv Row Max %6d\n", (mv->row >> 1));
+
+            if ((abs(mv->row) / 2) != max_mv_r)
+                fprintf(f, "MV Row conversion error %6d\n", abs(mv->row) / 2);
+
+            fclose(f);
+        }
+
+        if (abs(mv->col >> 1) > max_mv_c)
+        {
+            FILE *f = fopen("maxmv.stt", "a");
+            fprintf(f, "New Mv Col Max %6d\n", (mv->col >> 1));
+            max_mv_c = abs(mv->col >> 1);
+            fclose(f);
+        }
+    }
+#endif
+
+    encode_mvcomponent(w, mv->row >> 1, &mvc[0]);
+    encode_mvcomponent(w, mv->col >> 1, &mvc[1]);
+}
+
+
+static unsigned int cost_mvcomponent(const int v, const struct mv_context *mvc)
+{
+    const vp8_prob *p = mvc->prob;
+    const int x = v;
+    unsigned int cost;
+
+    if (x < mvnum_short)
+    {
+        cost = vp8_cost_zero(p [mvpis_short])
+               + vp8_treed_cost(vp8_small_mvtree, p + MVPshort, x, 3);
+
+        if (!x)
+            return cost;
+    }
+    else
+    {
+        int i = 0;
+        cost = vp8_cost_one(p [mvpis_short]);
+
+        do
+            cost += vp8_cost_bit(p [MVPbits + i], (x >> i) & 1);
+
+        while (++i < 3);
+
+        i = mvlong_width - 1;  /* Skip bit 3, which is sometimes implicit */
+
+        do
+            cost += vp8_cost_bit(p [MVPbits + i], (x >> i) & 1);
+
+        while (--i > 3);
+
+        if (x & 0xFFF0)
+            cost += vp8_cost_bit(p [MVPbits + 3], (x >> 3) & 1);
+    }
+
+    return cost;   /* + vp8_cost_bit( p [MVPsign], v < 0); */
+}
+
+void vp8_build_component_cost_table(int *mvcost[2], const MV_CONTEXT *mvc, int mvc_flag[2])
+{
+    int i = 1;
+    unsigned int cost0 = 0;
+    unsigned int cost1 = 0;
+
+    vp8_clear_system_state();
+
+    i = 1;
+
+    if (mvc_flag[0])
+    {
+        mvcost [0] [0] = cost_mvcomponent(0, &mvc[0]);
+
+        do
+        {
+            cost0 = cost_mvcomponent(i, &mvc[0]);
+
+            mvcost [0] [i] = cost0 + vp8_cost_zero(mvc[0].prob[MVPsign]);
+            mvcost [0] [-i] = cost0 + vp8_cost_one(mvc[0].prob[MVPsign]);
+        }
+        while (++i <= mv_max);
+    }
+
+    i = 1;
+
+    if (mvc_flag[1])
+    {
+        mvcost [1] [0] = cost_mvcomponent(0, &mvc[1]);
+
+        do
+        {
+            cost1 = cost_mvcomponent(i, &mvc[1]);
+
+            mvcost [1] [i] = cost1 + vp8_cost_zero(mvc[1].prob[MVPsign]);
+            mvcost [1] [-i] = cost1 + vp8_cost_one(mvc[1].prob[MVPsign]);
+        }
+        while (++i <= mv_max);
+    }
+}
+
+
+/* Motion vector probability table update depends on benefit.
+ * Small correction allows for the fact that an update to an MV probability
+ * may have benefit in subsequent frames as well as the current one.
+ */
+#define MV_PROB_UPDATE_CORRECTION   -1
+
+
+static void calc_prob(vp8_prob *p, const unsigned int ct[2])
+{
+    const unsigned int tot = ct[0] + ct[1];
+
+    if (tot)
+    {
+        const vp8_prob x = ((ct[0] * 255) / tot) & -2;
+        *p = x ? x : 1;
+    }
+}
+
+static void update(
+    vp8_writer *const w,
+    const unsigned int ct[2],
+    vp8_prob *const cur_p,
+    const vp8_prob new_p,
+    const vp8_prob update_p,
+    int *updated
+)
+{
+    const int cur_b = vp8_cost_branch(ct, *cur_p);
+    const int new_b = vp8_cost_branch(ct, new_p);
+    const int cost = 7 + MV_PROB_UPDATE_CORRECTION + ((vp8_cost_one(update_p) - vp8_cost_zero(update_p) + 128) >> 8);
+
+    if (cur_b - new_b > cost)
+    {
+        *cur_p = new_p;
+        vp8_write(w, 1, update_p);
+        vp8_write_literal(w, new_p >> 1, 7);
+        *updated = 1;
+
+    }
+    else
+        vp8_write(w, 0, update_p);
+}
+
+static void write_component_probs(
+    vp8_writer *const w,
+    struct mv_context *cur_mvc,
+    const struct mv_context *default_mvc_,
+    const struct mv_context *update_mvc,
+    const unsigned int events [MVvals],
+    unsigned int rc,
+    int *updated
+)
+{
+    vp8_prob *Pcur = cur_mvc->prob;
+    const vp8_prob *default_mvc = default_mvc_->prob;
+    const vp8_prob *Pupdate = update_mvc->prob;
+    unsigned int is_short_ct[2], sign_ct[2];
+
+    unsigned int bit_ct [mvlong_width] [2];
+
+    unsigned int short_ct  [mvnum_short];
+    unsigned int short_bct [mvnum_short-1] [2];
+
+    vp8_prob Pnew [MVPcount];
+
+    (void) rc;
+    vp8_copy_array(Pnew, default_mvc, MVPcount);
+
+    vp8_zero(is_short_ct)
+    vp8_zero(sign_ct)
+    vp8_zero(bit_ct)
+    vp8_zero(short_ct)
+    vp8_zero(short_bct)
+
+
+    /* j=0 */
+    {
+        const int c = events [mv_max];
+
+        is_short_ct [0] += c;     /* Short vector */
+        short_ct [0] += c;       /* Magnitude distribution */
+    }
+
+    /* j: 1 ~ mv_max (1023) */
+    {
+        int j = 1;
+
+        do
+        {
+            const int c1 = events [mv_max + j];  /* positive */
+            const int c2 = events [mv_max - j];  /* negative */
+            const int c  = c1 + c2;
+            int a = j;
+
+            sign_ct [0] += c1;
+            sign_ct [1] += c2;
+
+            if (a < mvnum_short)
+            {
+                is_short_ct [0] += c;     /* Short vector */
+                short_ct [a] += c;       /* Magnitude distribution */
+            }
+            else
+            {
+                int k = mvlong_width - 1;
+                is_short_ct [1] += c;     /* Long vector */
+
+                /*  bit 3 not always encoded. */
+                do
+                    bit_ct [k] [(a >> k) & 1] += c;
+
+                while (--k >= 0);
+            }
+        }
+        while (++j <= mv_max);
+    }
+
+    calc_prob(Pnew + mvpis_short, is_short_ct);
+
+    calc_prob(Pnew + MVPsign, sign_ct);
+
+    {
+        vp8_prob p [mvnum_short - 1];    /* actually only need branch ct */
+        int j = 0;
+
+        vp8_tree_probs_from_distribution(
+            8, vp8_small_mvencodings, vp8_small_mvtree,
+            p, short_bct, short_ct,
+            256, 1
+        );
+
+        do
+            calc_prob(Pnew + MVPshort + j, short_bct[j]);
+
+        while (++j < mvnum_short - 1);
+    }
+
+    {
+        int j = 0;
+
+        do
+            calc_prob(Pnew + MVPbits + j, bit_ct[j]);
+
+        while (++j < mvlong_width);
+    }
+
+    update(w, is_short_ct, Pcur + mvpis_short, Pnew[mvpis_short], *Pupdate++, updated);
+
+    update(w, sign_ct, Pcur + MVPsign, Pnew[MVPsign], *Pupdate++, updated);
+
+    {
+        const vp8_prob *const new_p = Pnew + MVPshort;
+        vp8_prob *const cur_p = Pcur + MVPshort;
+
+        int j = 0;
+
+        do
+
+            update(w, short_bct[j], cur_p + j, new_p[j], *Pupdate++, updated);
+
+        while (++j < mvnum_short - 1);
+    }
+
+    {
+        const vp8_prob *const new_p = Pnew + MVPbits;
+        vp8_prob *const cur_p = Pcur + MVPbits;
+
+        int j = 0;
+
+        do
+
+            update(w, bit_ct[j], cur_p + j, new_p[j], *Pupdate++, updated);
+
+        while (++j < mvlong_width);
+    }
+}
+
+void vp8_write_mvprobs(VP8_COMP *cpi)
+{
+    vp8_writer *const w  = cpi->bc;
+    MV_CONTEXT *mvc = cpi->common.fc.mvc;
+    int flags[2] = {0, 0};
+#ifdef VP8_ENTROPY_STATS
+    active_section = 4;
+#endif
+    write_component_probs(
+        w, &mvc[0], &vp8_default_mv_context[0], &vp8_mv_update_probs[0],
+        cpi->mb.MVcount[0], 0, &flags[0]
+    );
+    write_component_probs(
+        w, &mvc[1], &vp8_default_mv_context[1], &vp8_mv_update_probs[1],
+        cpi->mb.MVcount[1], 1, &flags[1]
+    );
+
+    if (flags[0] || flags[1])
+        vp8_build_component_cost_table(cpi->mb.mvcost, (const MV_CONTEXT *) cpi->common.fc.mvc, flags);
+
+#ifdef VP8_ENTROPY_STATS
+    active_section = 5;
+#endif
+}
diff --git a/media/libvpx/vp8/encoder/encodemv.h b/media/libvpx/vp8/encoder/encodemv.h
new file mode 100644
index 000000000..722162ba2
--- /dev/null
+++ b/media/libvpx/vp8/encoder/encodemv.h
@@ -0,0 +1,29 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_ENCODEMV_H_
+#define VP8_ENCODER_ENCODEMV_H_
+
+#include "onyx_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_write_mvprobs(VP8_COMP *);
+void vp8_encode_motion_vector(vp8_writer *, const MV *, const MV_CONTEXT *);
+void vp8_build_component_cost_table(int *mvcost[2], const MV_CONTEXT *mvc, int mvc_flag[2]);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_ENCODEMV_H_
diff --git a/media/libvpx/vp8/encoder/ethreading.c b/media/libvpx/vp8/encoder/ethreading.c
new file mode 100644
index 000000000..519ae73b4
--- /dev/null
+++ b/media/libvpx/vp8/encoder/ethreading.c
@@ -0,0 +1,673 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "onyx_int.h"
+#include "vp8/common/threading.h"
+#include "vp8/common/common.h"
+#include "vp8/common/extend.h"
+#include "bitstream.h"
+#include "encodeframe.h"
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+
+#if CONFIG_MULTITHREAD
+
+extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x, int ok_to_skip);
+
+static THREAD_FUNCTION thread_loopfilter(void *p_data)
+{
+    VP8_COMP *cpi = (VP8_COMP *)(((LPFTHREAD_DATA *)p_data)->ptr1);
+    VP8_COMMON *cm = &cpi->common;
+
+    while (1)
+    {
+        if (cpi->b_multi_threaded == 0)
+            break;
+
+        if (sem_wait(&cpi->h_event_start_lpf) == 0)
+        {
+            if (cpi->b_multi_threaded == 0) /* we're shutting down */
+                break;
+
+            vp8_loopfilter_frame(cpi, cm);
+
+            sem_post(&cpi->h_event_end_lpf);
+        }
+    }
+
+    return 0;
+}
+
+static
+THREAD_FUNCTION thread_encoding_proc(void *p_data)
+{
+    int ithread = ((ENCODETHREAD_DATA *)p_data)->ithread;
+    VP8_COMP *cpi = (VP8_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr1);
+    MB_ROW_COMP *mbri = (MB_ROW_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr2);
+    ENTROPY_CONTEXT_PLANES mb_row_left_context;
+
+    while (1)
+    {
+        if (cpi->b_multi_threaded == 0)
+            break;
+
+        if (sem_wait(&cpi->h_event_start_encoding[ithread]) == 0)
+        {
+            const int nsync = cpi->mt_sync_range;
+            VP8_COMMON *cm = &cpi->common;
+            int mb_row;
+            MACROBLOCK *x = &mbri->mb;
+            MACROBLOCKD *xd = &x->e_mbd;
+            TOKENEXTRA *tp ;
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+            TOKENEXTRA *tp_start = cpi->tok + (1 + ithread) * (16 * 24);
+            const int num_part = (1 << cm->multi_token_partition);
+#endif
+
+            int *segment_counts = mbri->segment_counts;
+            int *totalrate = &mbri->totalrate;
+
+            if (cpi->b_multi_threaded == 0) /* we're shutting down */
+                break;
+
+            for (mb_row = ithread + 1; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1))
+            {
+
+                int recon_yoffset, recon_uvoffset;
+                int mb_col;
+                int ref_fb_idx = cm->lst_fb_idx;
+                int dst_fb_idx = cm->new_fb_idx;
+                int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
+                int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
+                int map_index = (mb_row * cm->mb_cols);
+                volatile const int *last_row_current_mb_col;
+                volatile int *current_mb_col = &cpi->mt_current_mb_col[mb_row];
+
+#if  (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+                vp8_writer *w = &cpi->bc[1 + (mb_row % num_part)];
+#else
+                tp = cpi->tok + (mb_row * (cm->mb_cols * 16 * 24));
+                cpi->tplist[mb_row].start = tp;
+#endif
+
+                last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1];
+
+                /* reset above block coeffs */
+                xd->above_context = cm->above_context;
+                xd->left_context = &mb_row_left_context;
+
+                vp8_zero(mb_row_left_context);
+
+                xd->up_available = (mb_row != 0);
+                recon_yoffset = (mb_row * recon_y_stride * 16);
+                recon_uvoffset = (mb_row * recon_uv_stride * 8);
+
+                /* Set the mb activity pointer to the start of the row. */
+                x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
+
+                /* for each macroblock col in image */
+                for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+                {
+                    *current_mb_col = mb_col - 1;
+
+                    if ((mb_col & (nsync - 1)) == 0)
+                    {
+                        while (mb_col > (*last_row_current_mb_col - nsync))
+                        {
+                            x86_pause_hint();
+                            thread_sleep(0);
+                        }
+                    }
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                    tp = tp_start;
+#endif
+
+                    /* Distance of Mb to the various image edges.
+                     * These specified to 8th pel as they are always compared
+                     * to values that are in 1/8th pel units
+                     */
+                    xd->mb_to_left_edge = -((mb_col * 16) << 3);
+                    xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
+                    xd->mb_to_top_edge = -((mb_row * 16) << 3);
+                    xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
+
+                    /* Set up limit values for motion vectors used to prevent
+                     * them extending outside the UMV borders
+                     */
+                    x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
+                    x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
+                    x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
+                    x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
+
+                    xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
+                    xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
+                    xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
+                    xd->left_available = (mb_col != 0);
+
+                    x->rddiv = cpi->RDDIV;
+                    x->rdmult = cpi->RDMULT;
+
+                    /* Copy current mb to a buffer */
+                    vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
+
+                    if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
+                        vp8_activity_masking(cpi, x);
+
+                    /* Is segmentation enabled */
+                    /* MB level adjustment to quantizer */
+                    if (xd->segmentation_enabled)
+                    {
+                        /* Code to set segment id in xd->mbmi.segment_id for
+                         * current MB (with range checking)
+                         */
+                        if (cpi->segmentation_map[map_index + mb_col] <= 3)
+                            xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index + mb_col];
+                        else
+                            xd->mode_info_context->mbmi.segment_id = 0;
+
+                        vp8cx_mb_init_quantizer(cpi, x, 1);
+                    }
+                    else
+                        /* Set to Segment 0 by default */
+                        xd->mode_info_context->mbmi.segment_id = 0;
+
+                    x->active_ptr = cpi->active_map + map_index + mb_col;
+
+                    if (cm->frame_type == KEY_FRAME)
+                    {
+                        *totalrate += vp8cx_encode_intra_macroblock(cpi, x, &tp);
+#ifdef MODE_STATS
+                        y_modes[xd->mbmi.mode] ++;
+#endif
+                    }
+                    else
+                    {
+                        *totalrate += vp8cx_encode_inter_macroblock(cpi, x, &tp, recon_yoffset, recon_uvoffset, mb_row, mb_col);
+
+#ifdef MODE_STATS
+                        inter_y_modes[xd->mbmi.mode] ++;
+
+                        if (xd->mbmi.mode == SPLITMV)
+                        {
+                            int b;
+
+                            for (b = 0; b < xd->mbmi.partition_count; b++)
+                            {
+                                inter_b_modes[x->partition->bmi[b].mode] ++;
+                            }
+                        }
+
+#endif
+                        // Keep track of how many (consecutive) times a  block
+                        // is coded as ZEROMV_LASTREF, for base layer frames.
+                        // Reset to 0 if its coded as anything else.
+                        if (cpi->current_layer == 0) {
+                          if (xd->mode_info_context->mbmi.mode == ZEROMV &&
+                              xd->mode_info_context->mbmi.ref_frame ==
+                                  LAST_FRAME) {
+                            // Increment, check for wrap-around.
+                            if (cpi->consec_zero_last[map_index+mb_col] < 255)
+                              cpi->consec_zero_last[map_index+mb_col] += 1;
+                            if (cpi->consec_zero_last_mvbias[map_index+mb_col] < 255)
+                              cpi->consec_zero_last_mvbias[map_index+mb_col] += 1;
+                          } else {
+                            cpi->consec_zero_last[map_index+mb_col] = 0;
+                            cpi->consec_zero_last_mvbias[map_index+mb_col] = 0;
+                          }
+                          if (x->zero_last_dot_suppress)
+                            cpi->consec_zero_last_mvbias[map_index+mb_col] = 0;
+                        }
+
+                        /* Special case code for cyclic refresh
+                         * If cyclic update enabled then copy
+                         * xd->mbmi.segment_id; (which may have been updated
+                         * based on mode during
+                         * vp8cx_encode_inter_macroblock()) back into the
+                         * global segmentation map
+                         */
+                        if ((cpi->current_layer == 0) &&
+                            (cpi->cyclic_refresh_mode_enabled &&
+                             xd->segmentation_enabled))
+                        {
+                            const MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
+                            cpi->segmentation_map[map_index + mb_col] = mbmi->segment_id;
+
+                            /* If the block has been refreshed mark it as clean
+                             * (the magnitude of the -ve influences how long it
+                             * will be before we consider another refresh):
+                             * Else if it was coded (last frame 0,0) and has
+                             * not already been refreshed then mark it as a
+                             * candidate for cleanup next time (marked 0) else
+                             * mark it as dirty (1).
+                             */
+                            if (mbmi->segment_id)
+                                cpi->cyclic_refresh_map[map_index + mb_col] = -1;
+                            else if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME))
+                            {
+                                if (cpi->cyclic_refresh_map[map_index + mb_col] == 1)
+                                    cpi->cyclic_refresh_map[map_index + mb_col] = 0;
+                            }
+                            else
+                                cpi->cyclic_refresh_map[map_index + mb_col] = 1;
+
+                        }
+                    }
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                    /* pack tokens for this MB */
+                    {
+                        int tok_count = tp - tp_start;
+                        vp8_pack_tokens(w, tp_start, tok_count);
+                    }
+#else
+                    cpi->tplist[mb_row].stop = tp;
+#endif
+                    /* Increment pointer into gf usage flags structure. */
+                    x->gf_active_ptr++;
+
+                    /* Increment the activity mask pointers. */
+                    x->mb_activity_ptr++;
+
+                    /* adjust to the next column of macroblocks */
+                    x->src.y_buffer += 16;
+                    x->src.u_buffer += 8;
+                    x->src.v_buffer += 8;
+
+                    recon_yoffset += 16;
+                    recon_uvoffset += 8;
+
+                    /* Keep track of segment usage */
+                    segment_counts[xd->mode_info_context->mbmi.segment_id]++;
+
+                    /* skip to next mb */
+                    xd->mode_info_context++;
+                    x->partition_info++;
+                    xd->above_context++;
+                }
+
+                vp8_extend_mb_row( &cm->yv12_fb[dst_fb_idx],
+                                    xd->dst.y_buffer + 16,
+                                    xd->dst.u_buffer + 8,
+                                    xd->dst.v_buffer + 8);
+
+                *current_mb_col = mb_col + nsync;
+
+                /* this is to account for the border */
+                xd->mode_info_context++;
+                x->partition_info++;
+
+                x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
+                x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
+                x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
+
+                xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
+                x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count;
+                x->gf_active_ptr   += cm->mb_cols * cpi->encoding_thread_count;
+
+                if (mb_row == cm->mb_rows - 1)
+                {
+                    sem_post(&cpi->h_event_end_encoding); /* signal frame encoding end */
+                }
+            }
+        }
+    }
+
+    /* printf("exit thread %d\n", ithread); */
+    return 0;
+}
+
+static void setup_mbby_copy(MACROBLOCK *mbdst, MACROBLOCK *mbsrc)
+{
+
+    MACROBLOCK *x = mbsrc;
+    MACROBLOCK *z = mbdst;
+    int i;
+
+    z->ss               = x->ss;
+    z->ss_count          = x->ss_count;
+    z->searches_per_step  = x->searches_per_step;
+    z->errorperbit      = x->errorperbit;
+
+    z->sadperbit16      = x->sadperbit16;
+    z->sadperbit4       = x->sadperbit4;
+
+    /*
+    z->mv_col_min    = x->mv_col_min;
+    z->mv_col_max    = x->mv_col_max;
+    z->mv_row_min    = x->mv_row_min;
+    z->mv_row_max    = x->mv_row_max;
+    */
+
+    z->short_fdct4x4     = x->short_fdct4x4;
+    z->short_fdct8x4     = x->short_fdct8x4;
+    z->short_walsh4x4    = x->short_walsh4x4;
+    z->quantize_b        = x->quantize_b;
+    z->optimize          = x->optimize;
+
+    /*
+    z->mvc              = x->mvc;
+    z->src.y_buffer      = x->src.y_buffer;
+    z->src.u_buffer      = x->src.u_buffer;
+    z->src.v_buffer      = x->src.v_buffer;
+    */
+
+    z->mvcost[0] =  x->mvcost[0];
+    z->mvcost[1] =  x->mvcost[1];
+    z->mvsadcost[0] =  x->mvsadcost[0];
+    z->mvsadcost[1] =  x->mvsadcost[1];
+
+    z->token_costs = x->token_costs;
+    z->inter_bmode_costs = x->inter_bmode_costs;
+    z->mbmode_cost = x->mbmode_cost;
+    z->intra_uv_mode_cost = x->intra_uv_mode_cost;
+    z->bmode_costs = x->bmode_costs;
+
+    for (i = 0; i < 25; i++)
+    {
+        z->block[i].quant           = x->block[i].quant;
+        z->block[i].quant_fast      = x->block[i].quant_fast;
+        z->block[i].quant_shift     = x->block[i].quant_shift;
+        z->block[i].zbin            = x->block[i].zbin;
+        z->block[i].zrun_zbin_boost = x->block[i].zrun_zbin_boost;
+        z->block[i].round           = x->block[i].round;
+        z->block[i].src_stride      = x->block[i].src_stride;
+    }
+
+    z->q_index           = x->q_index;
+    z->act_zbin_adj      = x->act_zbin_adj;
+    z->last_act_zbin_adj = x->last_act_zbin_adj;
+
+    {
+        MACROBLOCKD *xd = &x->e_mbd;
+        MACROBLOCKD *zd = &z->e_mbd;
+
+        /*
+        zd->mode_info_context = xd->mode_info_context;
+        zd->mode_info        = xd->mode_info;
+
+        zd->mode_info_stride  = xd->mode_info_stride;
+        zd->frame_type       = xd->frame_type;
+        zd->up_available     = xd->up_available   ;
+        zd->left_available   = xd->left_available;
+        zd->left_context     = xd->left_context;
+        zd->last_frame_dc     = xd->last_frame_dc;
+        zd->last_frame_dccons = xd->last_frame_dccons;
+        zd->gold_frame_dc     = xd->gold_frame_dc;
+        zd->gold_frame_dccons = xd->gold_frame_dccons;
+        zd->mb_to_left_edge    = xd->mb_to_left_edge;
+        zd->mb_to_right_edge   = xd->mb_to_right_edge;
+        zd->mb_to_top_edge     = xd->mb_to_top_edge   ;
+        zd->mb_to_bottom_edge  = xd->mb_to_bottom_edge;
+        zd->gf_active_ptr     = xd->gf_active_ptr;
+        zd->frames_since_golden       = xd->frames_since_golden;
+        zd->frames_till_alt_ref_frame   = xd->frames_till_alt_ref_frame;
+        */
+        zd->subpixel_predict         = xd->subpixel_predict;
+        zd->subpixel_predict8x4      = xd->subpixel_predict8x4;
+        zd->subpixel_predict8x8      = xd->subpixel_predict8x8;
+        zd->subpixel_predict16x16    = xd->subpixel_predict16x16;
+        zd->segmentation_enabled     = xd->segmentation_enabled;
+        zd->mb_segement_abs_delta      = xd->mb_segement_abs_delta;
+        memcpy(zd->segment_feature_data, xd->segment_feature_data,
+               sizeof(xd->segment_feature_data));
+
+        memcpy(zd->dequant_y1_dc, xd->dequant_y1_dc, sizeof(xd->dequant_y1_dc));
+        memcpy(zd->dequant_y1, xd->dequant_y1, sizeof(xd->dequant_y1));
+        memcpy(zd->dequant_y2, xd->dequant_y2, sizeof(xd->dequant_y2));
+        memcpy(zd->dequant_uv, xd->dequant_uv, sizeof(xd->dequant_uv));
+
+#if 1
+        /*TODO:  Remove dequant from BLOCKD.  This is a temporary solution until
+         * the quantizer code uses a passed in pointer to the dequant constants.
+         * This will also require modifications to the x86 and neon assembly.
+         * */
+        for (i = 0; i < 16; i++)
+            zd->block[i].dequant = zd->dequant_y1;
+        for (i = 16; i < 24; i++)
+            zd->block[i].dequant = zd->dequant_uv;
+        zd->block[24].dequant = zd->dequant_y2;
+#endif
+
+
+        memcpy(z->rd_threshes, x->rd_threshes, sizeof(x->rd_threshes));
+        memcpy(z->rd_thresh_mult, x->rd_thresh_mult, sizeof(x->rd_thresh_mult));
+
+        z->zbin_over_quant = x->zbin_over_quant;
+        z->zbin_mode_boost_enabled = x->zbin_mode_boost_enabled;
+        z->zbin_mode_boost = x->zbin_mode_boost;
+
+        memset(z->error_bins, 0, sizeof(z->error_bins));
+    }
+}
+
+void vp8cx_init_mbrthread_data(VP8_COMP *cpi,
+                               MACROBLOCK *x,
+                               MB_ROW_COMP *mbr_ei,
+                               int count
+                              )
+{
+
+    VP8_COMMON *const cm = & cpi->common;
+    MACROBLOCKD *const xd = & x->e_mbd;
+    int i;
+
+    for (i = 0; i < count; i++)
+    {
+        MACROBLOCK *mb = & mbr_ei[i].mb;
+        MACROBLOCKD *mbd = &mb->e_mbd;
+
+        mbd->subpixel_predict        = xd->subpixel_predict;
+        mbd->subpixel_predict8x4     = xd->subpixel_predict8x4;
+        mbd->subpixel_predict8x8     = xd->subpixel_predict8x8;
+        mbd->subpixel_predict16x16   = xd->subpixel_predict16x16;
+        mb->gf_active_ptr            = x->gf_active_ptr;
+
+        memset(mbr_ei[i].segment_counts, 0, sizeof(mbr_ei[i].segment_counts));
+        mbr_ei[i].totalrate = 0;
+
+        mb->partition_info = x->pi + x->e_mbd.mode_info_stride * (i + 1);
+
+        mbd->mode_info_context = cm->mi   + x->e_mbd.mode_info_stride * (i + 1);
+        mbd->mode_info_stride  = cm->mode_info_stride;
+
+        mbd->frame_type = cm->frame_type;
+
+        mb->src = * cpi->Source;
+        mbd->pre = cm->yv12_fb[cm->lst_fb_idx];
+        mbd->dst = cm->yv12_fb[cm->new_fb_idx];
+
+        mb->src.y_buffer += 16 * x->src.y_stride * (i + 1);
+        mb->src.u_buffer +=  8 * x->src.uv_stride * (i + 1);
+        mb->src.v_buffer +=  8 * x->src.uv_stride * (i + 1);
+
+        vp8_build_block_offsets(mb);
+
+        mbd->left_context = &cm->left_context;
+        mb->mvc = cm->fc.mvc;
+
+        setup_mbby_copy(&mbr_ei[i].mb, x);
+
+        mbd->fullpixel_mask = 0xffffffff;
+        if(cm->full_pixel)
+            mbd->fullpixel_mask = 0xfffffff8;
+
+        vp8_zero(mb->coef_counts);
+        vp8_zero(x->ymode_count);
+        mb->skip_true_count = 0;
+        vp8_zero(mb->MVcount);
+        mb->prediction_error = 0;
+        mb->intra_error = 0;
+        vp8_zero(mb->count_mb_ref_frame_usage);
+        mb->mbs_tested_so_far = 0;
+        mb->mbs_zero_last_dot_suppress = 0;
+    }
+}
+
+int vp8cx_create_encoder_threads(VP8_COMP *cpi)
+{
+    const VP8_COMMON * cm = &cpi->common;
+
+    cpi->b_multi_threaded = 0;
+    cpi->encoding_thread_count = 0;
+    cpi->b_lpf_running = 0;
+
+    if (cm->processor_core_count > 1 && cpi->oxcf.multi_threaded > 1)
+    {
+        int ithread;
+        int th_count = cpi->oxcf.multi_threaded - 1;
+        int rc = 0;
+
+        /* don't allocate more threads than cores available */
+        if (cpi->oxcf.multi_threaded > cm->processor_core_count)
+            th_count = cm->processor_core_count - 1;
+
+        /* we have th_count + 1 (main) threads processing one row each */
+        /* no point to have more threads than the sync range allows */
+        if(th_count > ((cm->mb_cols / cpi->mt_sync_range) - 1))
+        {
+            th_count = (cm->mb_cols / cpi->mt_sync_range) - 1;
+        }
+
+        if(th_count == 0)
+            return 0;
+
+        CHECK_MEM_ERROR(cpi->h_encoding_thread,
+                        vpx_malloc(sizeof(pthread_t) * th_count));
+        CHECK_MEM_ERROR(cpi->h_event_start_encoding,
+                        vpx_malloc(sizeof(sem_t) * th_count));
+        CHECK_MEM_ERROR(cpi->mb_row_ei,
+                        vpx_memalign(32, sizeof(MB_ROW_COMP) * th_count));
+        memset(cpi->mb_row_ei, 0, sizeof(MB_ROW_COMP) * th_count);
+        CHECK_MEM_ERROR(cpi->en_thread_data,
+                        vpx_malloc(sizeof(ENCODETHREAD_DATA) * th_count));
+
+        sem_init(&cpi->h_event_end_encoding, 0, 0);
+
+        cpi->b_multi_threaded = 1;
+        cpi->encoding_thread_count = th_count;
+
+        /*
+        printf("[VP8:] multi_threaded encoding is enabled with %d threads\n\n",
+               (cpi->encoding_thread_count +1));
+        */
+
+        for (ithread = 0; ithread < th_count; ithread++)
+        {
+            ENCODETHREAD_DATA *ethd = &cpi->en_thread_data[ithread];
+
+            /* Setup block ptrs and offsets */
+            vp8_setup_block_ptrs(&cpi->mb_row_ei[ithread].mb);
+            vp8_setup_block_dptrs(&cpi->mb_row_ei[ithread].mb.e_mbd);
+
+            sem_init(&cpi->h_event_start_encoding[ithread], 0, 0);
+
+            ethd->ithread = ithread;
+            ethd->ptr1 = (void *)cpi;
+            ethd->ptr2 = (void *)&cpi->mb_row_ei[ithread];
+
+            rc = pthread_create(&cpi->h_encoding_thread[ithread], 0,
+                                thread_encoding_proc, ethd);
+            if(rc)
+                break;
+        }
+
+        if(rc)
+        {
+            /* shutdown other threads */
+            cpi->b_multi_threaded = 0;
+            for(--ithread; ithread >= 0; ithread--)
+            {
+                pthread_join(cpi->h_encoding_thread[ithread], 0);
+                sem_destroy(&cpi->h_event_start_encoding[ithread]);
+            }
+            sem_destroy(&cpi->h_event_end_encoding);
+
+            /* free thread related resources */
+            vpx_free(cpi->h_event_start_encoding);
+            vpx_free(cpi->h_encoding_thread);
+            vpx_free(cpi->mb_row_ei);
+            vpx_free(cpi->en_thread_data);
+
+            return -1;
+        }
+
+
+        {
+            LPFTHREAD_DATA * lpfthd = &cpi->lpf_thread_data;
+
+            sem_init(&cpi->h_event_start_lpf, 0, 0);
+            sem_init(&cpi->h_event_end_lpf, 0, 0);
+
+            lpfthd->ptr1 = (void *)cpi;
+            rc = pthread_create(&cpi->h_filter_thread, 0, thread_loopfilter,
+                                lpfthd);
+
+            if(rc)
+            {
+                /* shutdown other threads */
+                cpi->b_multi_threaded = 0;
+                for(--ithread; ithread >= 0; ithread--)
+                {
+                    sem_post(&cpi->h_event_start_encoding[ithread]);
+                    pthread_join(cpi->h_encoding_thread[ithread], 0);
+                    sem_destroy(&cpi->h_event_start_encoding[ithread]);
+                }
+                sem_destroy(&cpi->h_event_end_encoding);
+                sem_destroy(&cpi->h_event_end_lpf);
+                sem_destroy(&cpi->h_event_start_lpf);
+
+                /* free thread related resources */
+                vpx_free(cpi->h_event_start_encoding);
+                vpx_free(cpi->h_encoding_thread);
+                vpx_free(cpi->mb_row_ei);
+                vpx_free(cpi->en_thread_data);
+
+                return -2;
+            }
+        }
+    }
+    return 0;
+}
+
+void vp8cx_remove_encoder_threads(VP8_COMP *cpi)
+{
+    if (cpi->b_multi_threaded)
+    {
+        /* shutdown other threads */
+        cpi->b_multi_threaded = 0;
+        {
+            int i;
+
+            for (i = 0; i < cpi->encoding_thread_count; i++)
+            {
+                sem_post(&cpi->h_event_start_encoding[i]);
+                pthread_join(cpi->h_encoding_thread[i], 0);
+
+                sem_destroy(&cpi->h_event_start_encoding[i]);
+            }
+
+            sem_post(&cpi->h_event_start_lpf);
+            pthread_join(cpi->h_filter_thread, 0);
+        }
+
+        sem_destroy(&cpi->h_event_end_encoding);
+        sem_destroy(&cpi->h_event_end_lpf);
+        sem_destroy(&cpi->h_event_start_lpf);
+
+        /* free thread related resources */
+        vpx_free(cpi->h_event_start_encoding);
+        vpx_free(cpi->h_encoding_thread);
+        vpx_free(cpi->mb_row_ei);
+        vpx_free(cpi->en_thread_data);
+    }
+}
+#endif
diff --git a/media/libvpx/vp8/encoder/firstpass.c b/media/libvpx/vp8/encoder/firstpass.c
new file mode 100644
index 000000000..3deb4abb3
--- /dev/null
+++ b/media/libvpx/vp8/encoder/firstpass.c
@@ -0,0 +1,3368 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <math.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include "./vpx_dsp_rtcd.h"
+#include "./vpx_scale_rtcd.h"
+#include "block.h"
+#include "onyx_int.h"
+#include "vp8/common/variance.h"
+#include "encodeintra.h"
+#include "vp8/common/setupintrarecon.h"
+#include "vp8/common/systemdependent.h"
+#include "mcomp.h"
+#include "firstpass.h"
+#include "vpx_scale/vpx_scale.h"
+#include "encodemb.h"
+#include "vp8/common/extend.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/swapyv12buffer.h"
+#include "rdopt.h"
+#include "vp8/common/quant_common.h"
+#include "encodemv.h"
+#include "encodeframe.h"
+
+/* #define OUTPUT_FPF 1 */
+
+extern void vp8cx_frame_init_quantizer(VP8_COMP *cpi);
+
+#define GFQ_ADJUSTMENT vp8_gf_boost_qadjustment[Q]
+extern int vp8_kf_boost_qadjustment[QINDEX_RANGE];
+
+extern const int vp8_gf_boost_qadjustment[QINDEX_RANGE];
+
+#define IIFACTOR   1.5
+#define IIKFACTOR1 1.40
+#define IIKFACTOR2 1.5
+#define RMAX       14.0
+#define GF_RMAX    48.0
+
+#define KF_MB_INTRA_MIN 300
+#define GF_MB_INTRA_MIN 200
+
+#define DOUBLE_DIVIDE_CHECK(X) ((X)<0?(X)-.000001:(X)+.000001)
+
+#define POW1 (double)cpi->oxcf.two_pass_vbrbias/100.0
+#define POW2 (double)cpi->oxcf.two_pass_vbrbias/100.0
+
+#define NEW_BOOST 1
+
+static int vscale_lookup[7] = {0, 1, 1, 2, 2, 3, 3};
+static int hscale_lookup[7] = {0, 0, 1, 1, 2, 2, 3};
+
+
+static const int cq_level[QINDEX_RANGE] =
+{
+    0,0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,
+    9,10,11,11,12,13,13,14,15,15,16,17,17,18,19,20,
+    20,21,22,22,23,24,24,25,26,27,27,28,29,30,30,31,
+    32,33,33,34,35,36,36,37,38,39,39,40,41,42,42,43,
+    44,45,46,46,47,48,49,50,50,51,52,53,54,55,55,56,
+    57,58,59,60,60,61,62,63,64,65,66,67,67,68,69,70,
+    71,72,73,74,75,75,76,77,78,79,80,81,82,83,84,85,
+    86,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100
+};
+
+static void find_next_key_frame(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame);
+
+/* Resets the first pass file to the given position using a relative seek
+ * from the current position
+ */
+static void reset_fpf_position(VP8_COMP *cpi, FIRSTPASS_STATS *Position)
+{
+    cpi->twopass.stats_in = Position;
+}
+
+static int lookup_next_frame_stats(VP8_COMP *cpi, FIRSTPASS_STATS *next_frame)
+{
+    if (cpi->twopass.stats_in >= cpi->twopass.stats_in_end)
+        return EOF;
+
+    *next_frame = *cpi->twopass.stats_in;
+    return 1;
+}
+
+/* Read frame stats at an offset from the current position */
+static int read_frame_stats( VP8_COMP *cpi,
+                             FIRSTPASS_STATS *frame_stats,
+                             int offset )
+{
+    FIRSTPASS_STATS * fps_ptr = cpi->twopass.stats_in;
+
+    /* Check legality of offset */
+    if ( offset >= 0 )
+    {
+        if ( &fps_ptr[offset] >= cpi->twopass.stats_in_end )
+             return EOF;
+    }
+    else if ( offset < 0 )
+    {
+        if ( &fps_ptr[offset] < cpi->twopass.stats_in_start )
+             return EOF;
+    }
+
+    *frame_stats = fps_ptr[offset];
+    return 1;
+}
+
+static int input_stats(VP8_COMP *cpi, FIRSTPASS_STATS *fps)
+{
+    if (cpi->twopass.stats_in >= cpi->twopass.stats_in_end)
+        return EOF;
+
+    *fps = *cpi->twopass.stats_in;
+    cpi->twopass.stats_in =
+         (void*)((char *)cpi->twopass.stats_in + sizeof(FIRSTPASS_STATS));
+    return 1;
+}
+
+static void output_stats(const VP8_COMP            *cpi,
+                         struct vpx_codec_pkt_list *pktlist,
+                         FIRSTPASS_STATS            *stats)
+{
+    struct vpx_codec_cx_pkt pkt;
+    (void)cpi;
+    pkt.kind = VPX_CODEC_STATS_PKT;
+    pkt.data.twopass_stats.buf = stats;
+    pkt.data.twopass_stats.sz = sizeof(FIRSTPASS_STATS);
+    vpx_codec_pkt_list_add(pktlist, &pkt);
+
+/* TEMP debug code */
+#if OUTPUT_FPF
+
+    {
+        FILE *fpfile;
+        fpfile = fopen("firstpass.stt", "a");
+
+        fprintf(fpfile, "%12.0f %12.0f %12.0f %12.4f %12.4f %12.4f %12.4f"
+                " %12.4f %12.4f %12.4f %12.4f %12.4f %12.4f %12.4f %12.4f"
+                " %12.0f %12.0f %12.4f\n",
+                stats->frame,
+                stats->intra_error,
+                stats->coded_error,
+                stats->ssim_weighted_pred_err,
+                stats->pcnt_inter,
+                stats->pcnt_motion,
+                stats->pcnt_second_ref,
+                stats->pcnt_neutral,
+                stats->MVr,
+                stats->mvr_abs,
+                stats->MVc,
+                stats->mvc_abs,
+                stats->MVrv,
+                stats->MVcv,
+                stats->mv_in_out_count,
+                stats->new_mv_count,
+                stats->count,
+                stats->duration);
+        fclose(fpfile);
+    }
+#endif
+}
+
+static void zero_stats(FIRSTPASS_STATS *section)
+{
+    section->frame      = 0.0;
+    section->intra_error = 0.0;
+    section->coded_error = 0.0;
+    section->ssim_weighted_pred_err = 0.0;
+    section->pcnt_inter  = 0.0;
+    section->pcnt_motion  = 0.0;
+    section->pcnt_second_ref = 0.0;
+    section->pcnt_neutral = 0.0;
+    section->MVr        = 0.0;
+    section->mvr_abs     = 0.0;
+    section->MVc        = 0.0;
+    section->mvc_abs     = 0.0;
+    section->MVrv       = 0.0;
+    section->MVcv       = 0.0;
+    section->mv_in_out_count  = 0.0;
+    section->new_mv_count = 0.0;
+    section->count      = 0.0;
+    section->duration   = 1.0;
+}
+
+static void accumulate_stats(FIRSTPASS_STATS *section, FIRSTPASS_STATS *frame)
+{
+    section->frame += frame->frame;
+    section->intra_error += frame->intra_error;
+    section->coded_error += frame->coded_error;
+    section->ssim_weighted_pred_err += frame->ssim_weighted_pred_err;
+    section->pcnt_inter  += frame->pcnt_inter;
+    section->pcnt_motion += frame->pcnt_motion;
+    section->pcnt_second_ref += frame->pcnt_second_ref;
+    section->pcnt_neutral += frame->pcnt_neutral;
+    section->MVr        += frame->MVr;
+    section->mvr_abs     += frame->mvr_abs;
+    section->MVc        += frame->MVc;
+    section->mvc_abs     += frame->mvc_abs;
+    section->MVrv       += frame->MVrv;
+    section->MVcv       += frame->MVcv;
+    section->mv_in_out_count  += frame->mv_in_out_count;
+    section->new_mv_count += frame->new_mv_count;
+    section->count      += frame->count;
+    section->duration   += frame->duration;
+}
+
+static void subtract_stats(FIRSTPASS_STATS *section, FIRSTPASS_STATS *frame)
+{
+    section->frame -= frame->frame;
+    section->intra_error -= frame->intra_error;
+    section->coded_error -= frame->coded_error;
+    section->ssim_weighted_pred_err -= frame->ssim_weighted_pred_err;
+    section->pcnt_inter  -= frame->pcnt_inter;
+    section->pcnt_motion -= frame->pcnt_motion;
+    section->pcnt_second_ref -= frame->pcnt_second_ref;
+    section->pcnt_neutral -= frame->pcnt_neutral;
+    section->MVr        -= frame->MVr;
+    section->mvr_abs     -= frame->mvr_abs;
+    section->MVc        -= frame->MVc;
+    section->mvc_abs     -= frame->mvc_abs;
+    section->MVrv       -= frame->MVrv;
+    section->MVcv       -= frame->MVcv;
+    section->mv_in_out_count  -= frame->mv_in_out_count;
+    section->new_mv_count -= frame->new_mv_count;
+    section->count      -= frame->count;
+    section->duration   -= frame->duration;
+}
+
+static void avg_stats(FIRSTPASS_STATS *section)
+{
+    if (section->count < 1.0)
+        return;
+
+    section->intra_error /= section->count;
+    section->coded_error /= section->count;
+    section->ssim_weighted_pred_err /= section->count;
+    section->pcnt_inter  /= section->count;
+    section->pcnt_second_ref /= section->count;
+    section->pcnt_neutral /= section->count;
+    section->pcnt_motion /= section->count;
+    section->MVr        /= section->count;
+    section->mvr_abs     /= section->count;
+    section->MVc        /= section->count;
+    section->mvc_abs     /= section->count;
+    section->MVrv       /= section->count;
+    section->MVcv       /= section->count;
+    section->mv_in_out_count   /= section->count;
+    section->duration   /= section->count;
+}
+
+/* Calculate a modified Error used in distributing bits between easier
+ * and harder frames
+ */
+static double calculate_modified_err(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame)
+{
+    double av_err = ( cpi->twopass.total_stats.ssim_weighted_pred_err /
+                      cpi->twopass.total_stats.count );
+    double this_err = this_frame->ssim_weighted_pred_err;
+    double modified_err;
+
+    if (this_err > av_err)
+        modified_err = av_err * pow((this_err / DOUBLE_DIVIDE_CHECK(av_err)), POW1);
+    else
+        modified_err = av_err * pow((this_err / DOUBLE_DIVIDE_CHECK(av_err)), POW2);
+
+    return modified_err;
+}
+
+static const double weight_table[256] = {
+0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000,
+0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000,
+0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000,
+0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000, 0.020000,
+0.020000, 0.031250, 0.062500, 0.093750, 0.125000, 0.156250, 0.187500, 0.218750,
+0.250000, 0.281250, 0.312500, 0.343750, 0.375000, 0.406250, 0.437500, 0.468750,
+0.500000, 0.531250, 0.562500, 0.593750, 0.625000, 0.656250, 0.687500, 0.718750,
+0.750000, 0.781250, 0.812500, 0.843750, 0.875000, 0.906250, 0.937500, 0.968750,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000,
+1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000, 1.000000
+};
+
+static double simple_weight(YV12_BUFFER_CONFIG *source)
+{
+    int i, j;
+
+    unsigned char *src = source->y_buffer;
+    double sum_weights = 0.0;
+
+    /* Loop throught the Y plane raw examining levels and creating a weight
+     * for the image
+     */
+    i = source->y_height;
+    do
+    {
+        j = source->y_width;
+        do
+        {
+            sum_weights += weight_table[ *src];
+            src++;
+        }while(--j);
+        src -= source->y_width;
+        src += source->y_stride;
+    }while(--i);
+
+    sum_weights /= (source->y_height * source->y_width);
+
+    return sum_weights;
+}
+
+
+/* This function returns the current per frame maximum bitrate target */
+static int frame_max_bits(VP8_COMP *cpi)
+{
+    /* Max allocation for a single frame based on the max section guidelines
+     * passed in and how many bits are left
+     */
+    int max_bits;
+
+    /* For CBR we need to also consider buffer fullness.
+     * If we are running below the optimal level then we need to gradually
+     * tighten up on max_bits.
+     */
+    if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+    {
+        double buffer_fullness_ratio = (double)cpi->buffer_level / DOUBLE_DIVIDE_CHECK((double)cpi->oxcf.optimal_buffer_level);
+
+        /* For CBR base this on the target average bits per frame plus the
+         * maximum sedction rate passed in by the user
+         */
+        max_bits = (int)(cpi->av_per_frame_bandwidth * ((double)cpi->oxcf.two_pass_vbrmax_section / 100.0));
+
+        /* If our buffer is below the optimum level */
+        if (buffer_fullness_ratio < 1.0)
+        {
+            /* The lower of max_bits / 4 or cpi->av_per_frame_bandwidth / 4. */
+            int min_max_bits = ((cpi->av_per_frame_bandwidth >> 2) < (max_bits >> 2)) ? cpi->av_per_frame_bandwidth >> 2 : max_bits >> 2;
+
+            max_bits = (int)(max_bits * buffer_fullness_ratio);
+
+            /* Lowest value we will set ... which should allow the buffer to
+             * refill.
+             */
+            if (max_bits < min_max_bits)
+                max_bits = min_max_bits;
+        }
+    }
+    /* VBR */
+    else
+    {
+        /* For VBR base this on the bits and frames left plus the
+         * two_pass_vbrmax_section rate passed in by the user
+         */
+        max_bits = (int)(((double)cpi->twopass.bits_left / (cpi->twopass.total_stats.count - (double)cpi->common.current_video_frame)) * ((double)cpi->oxcf.two_pass_vbrmax_section / 100.0));
+    }
+
+    /* Trap case where we are out of bits */
+    if (max_bits < 0)
+        max_bits = 0;
+
+    return max_bits;
+}
+
+void vp8_init_first_pass(VP8_COMP *cpi)
+{
+    zero_stats(&cpi->twopass.total_stats);
+}
+
+void vp8_end_first_pass(VP8_COMP *cpi)
+{
+    output_stats(cpi, cpi->output_pkt_list, &cpi->twopass.total_stats);
+}
+
+static void zz_motion_search( VP8_COMP *cpi, MACROBLOCK * x,
+                              YV12_BUFFER_CONFIG * raw_buffer,
+                              int * raw_motion_err,
+                              YV12_BUFFER_CONFIG * recon_buffer,
+                              int * best_motion_err, int recon_yoffset)
+{
+    MACROBLOCKD * const xd = & x->e_mbd;
+    BLOCK *b = &x->block[0];
+    BLOCKD *d = &x->e_mbd.block[0];
+
+    unsigned char *src_ptr = (*(b->base_src) + b->src);
+    int src_stride = b->src_stride;
+    unsigned char *raw_ptr;
+    int raw_stride = raw_buffer->y_stride;
+    unsigned char *ref_ptr;
+    int ref_stride = x->e_mbd.pre.y_stride;
+    (void)cpi;
+
+    /* Set up pointers for this macro block raw buffer */
+    raw_ptr = (unsigned char *)(raw_buffer->y_buffer + recon_yoffset
+                                + d->offset);
+    vpx_mse16x16(src_ptr, src_stride, raw_ptr, raw_stride,
+                 (unsigned int *)(raw_motion_err));
+
+    /* Set up pointers for this macro block recon buffer */
+    xd->pre.y_buffer = recon_buffer->y_buffer + recon_yoffset;
+    ref_ptr = (unsigned char *)(xd->pre.y_buffer + d->offset );
+    vpx_mse16x16(src_ptr, src_stride, ref_ptr, ref_stride,
+                 (unsigned int *)(best_motion_err));
+}
+
+static void first_pass_motion_search(VP8_COMP *cpi, MACROBLOCK *x,
+                                     int_mv *ref_mv, MV *best_mv,
+                                     YV12_BUFFER_CONFIG *recon_buffer,
+                                     int *best_motion_err, int recon_yoffset )
+{
+    MACROBLOCKD *const xd = & x->e_mbd;
+    BLOCK *b = &x->block[0];
+    BLOCKD *d = &x->e_mbd.block[0];
+    int num00;
+
+    int_mv tmp_mv;
+    int_mv ref_mv_full;
+
+    int tmp_err;
+    int step_param = 3; /* Dont search over full range for first pass */
+    int further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param;
+    int n;
+    vp8_variance_fn_ptr_t v_fn_ptr = cpi->fn_ptr[BLOCK_16X16];
+    int new_mv_mode_penalty = 256;
+
+    /* override the default variance function to use MSE */
+    v_fn_ptr.vf    = vpx_mse16x16;
+
+    /* Set up pointers for this macro block recon buffer */
+    xd->pre.y_buffer = recon_buffer->y_buffer + recon_yoffset;
+
+    /* Initial step/diamond search centred on best mv */
+    tmp_mv.as_int = 0;
+    ref_mv_full.as_mv.col = ref_mv->as_mv.col>>3;
+    ref_mv_full.as_mv.row = ref_mv->as_mv.row>>3;
+    tmp_err = cpi->diamond_search_sad(x, b, d, &ref_mv_full, &tmp_mv, step_param,
+                                      x->sadperbit16, &num00, &v_fn_ptr,
+                                      x->mvcost, ref_mv);
+    if ( tmp_err < INT_MAX-new_mv_mode_penalty )
+        tmp_err += new_mv_mode_penalty;
+
+    if (tmp_err < *best_motion_err)
+    {
+        *best_motion_err = tmp_err;
+        best_mv->row = tmp_mv.as_mv.row;
+        best_mv->col = tmp_mv.as_mv.col;
+    }
+
+    /* Further step/diamond searches as necessary */
+    n = num00;
+    num00 = 0;
+
+    while (n < further_steps)
+    {
+        n++;
+
+        if (num00)
+            num00--;
+        else
+        {
+            tmp_err = cpi->diamond_search_sad(x, b, d, &ref_mv_full, &tmp_mv,
+                                              step_param + n, x->sadperbit16,
+                                              &num00, &v_fn_ptr, x->mvcost,
+                                              ref_mv);
+            if ( tmp_err < INT_MAX-new_mv_mode_penalty )
+                tmp_err += new_mv_mode_penalty;
+
+            if (tmp_err < *best_motion_err)
+            {
+                *best_motion_err = tmp_err;
+                best_mv->row = tmp_mv.as_mv.row;
+                best_mv->col = tmp_mv.as_mv.col;
+            }
+        }
+    }
+}
+
+void vp8_first_pass(VP8_COMP *cpi)
+{
+    int mb_row, mb_col;
+    MACROBLOCK *const x = & cpi->mb;
+    VP8_COMMON *const cm = & cpi->common;
+    MACROBLOCKD *const xd = & x->e_mbd;
+
+    int recon_yoffset, recon_uvoffset;
+    YV12_BUFFER_CONFIG *lst_yv12 = &cm->yv12_fb[cm->lst_fb_idx];
+    YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
+    YV12_BUFFER_CONFIG *gld_yv12 = &cm->yv12_fb[cm->gld_fb_idx];
+    int recon_y_stride = lst_yv12->y_stride;
+    int recon_uv_stride = lst_yv12->uv_stride;
+    int64_t intra_error = 0;
+    int64_t coded_error = 0;
+
+    int sum_mvr = 0, sum_mvc = 0;
+    int sum_mvr_abs = 0, sum_mvc_abs = 0;
+    int sum_mvrs = 0, sum_mvcs = 0;
+    int mvcount = 0;
+    int intercount = 0;
+    int second_ref_count = 0;
+    int intrapenalty = 256;
+    int neutral_count = 0;
+    int new_mv_count = 0;
+    int sum_in_vectors = 0;
+    uint32_t lastmv_as_int = 0;
+
+    int_mv zero_ref_mv;
+
+    zero_ref_mv.as_int = 0;
+
+    vp8_clear_system_state();
+
+    x->src = * cpi->Source;
+    xd->pre = *lst_yv12;
+    xd->dst = *new_yv12;
+
+    x->partition_info = x->pi;
+
+    xd->mode_info_context = cm->mi;
+
+    if(!cm->use_bilinear_mc_filter)
+    {
+         xd->subpixel_predict        = vp8_sixtap_predict4x4;
+         xd->subpixel_predict8x4     = vp8_sixtap_predict8x4;
+         xd->subpixel_predict8x8     = vp8_sixtap_predict8x8;
+         xd->subpixel_predict16x16   = vp8_sixtap_predict16x16;
+     }
+     else
+     {
+         xd->subpixel_predict        = vp8_bilinear_predict4x4;
+         xd->subpixel_predict8x4     = vp8_bilinear_predict8x4;
+         xd->subpixel_predict8x8     = vp8_bilinear_predict8x8;
+         xd->subpixel_predict16x16   = vp8_bilinear_predict16x16;
+     }
+
+    vp8_build_block_offsets(x);
+
+    /* set up frame new frame for intra coded blocks */
+    vp8_setup_intra_recon(new_yv12);
+    vp8cx_frame_init_quantizer(cpi);
+
+    /* Initialise the MV cost table to the defaults */
+    {
+        int flag[2] = {1, 1};
+        vp8_initialize_rd_consts(cpi, x, vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
+        memcpy(cm->fc.mvc, vp8_default_mv_context, sizeof(vp8_default_mv_context));
+        vp8_build_component_cost_table(cpi->mb.mvcost, (const MV_CONTEXT *) cm->fc.mvc, flag);
+    }
+
+    /* for each macroblock row in image */
+    for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+    {
+        int_mv best_ref_mv;
+
+        best_ref_mv.as_int = 0;
+
+        /* reset above block coeffs */
+        xd->up_available = (mb_row != 0);
+        recon_yoffset = (mb_row * recon_y_stride * 16);
+        recon_uvoffset = (mb_row * recon_uv_stride * 8);
+
+        /* Set up limit values for motion vectors to prevent them extending
+         * outside the UMV borders
+         */
+        x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
+        x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
+
+
+        /* for each macroblock col in image */
+        for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+        {
+            int this_error;
+            int gf_motion_error = INT_MAX;
+            int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
+
+            xd->dst.y_buffer = new_yv12->y_buffer + recon_yoffset;
+            xd->dst.u_buffer = new_yv12->u_buffer + recon_uvoffset;
+            xd->dst.v_buffer = new_yv12->v_buffer + recon_uvoffset;
+            xd->left_available = (mb_col != 0);
+
+            /* Copy current mb to a buffer */
+            vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
+
+            /* do intra 16x16 prediction */
+            this_error = vp8_encode_intra(cpi, x, use_dc_pred);
+
+            /* "intrapenalty" below deals with situations where the intra
+             * and inter error scores are very low (eg a plain black frame)
+             * We do not have special cases in first pass for 0,0 and
+             * nearest etc so all inter modes carry an overhead cost
+             * estimate fot the mv. When the error score is very low this
+             * causes us to pick all or lots of INTRA modes and throw lots
+             * of key frames. This penalty adds a cost matching that of a
+             * 0,0 mv to the intra case.
+             */
+            this_error += intrapenalty;
+
+            /* Cumulative intra error total */
+            intra_error += (int64_t)this_error;
+
+            /* Set up limit values for motion vectors to prevent them
+             * extending outside the UMV borders
+             */
+            x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
+            x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
+
+            /* Other than for the first frame do a motion search */
+            if (cm->current_video_frame > 0)
+            {
+                BLOCKD *d = &x->e_mbd.block[0];
+                MV tmp_mv = {0, 0};
+                int tmp_err;
+                int motion_error = INT_MAX;
+                int raw_motion_error = INT_MAX;
+
+                /* Simple 0,0 motion with no mv overhead */
+                zz_motion_search( cpi, x, cpi->last_frame_unscaled_source,
+                                  &raw_motion_error, lst_yv12, &motion_error,
+                                  recon_yoffset );
+                d->bmi.mv.as_mv.row = 0;
+                d->bmi.mv.as_mv.col = 0;
+
+                if (raw_motion_error < cpi->oxcf.encode_breakout)
+                    goto skip_motion_search;
+
+                /* Test last reference frame using the previous best mv as the
+                 * starting point (best reference) for the search
+                 */
+                first_pass_motion_search(cpi, x, &best_ref_mv,
+                                        &d->bmi.mv.as_mv, lst_yv12,
+                                        &motion_error, recon_yoffset);
+
+                /* If the current best reference mv is not centred on 0,0
+                 * then do a 0,0 based search as well
+                 */
+                if (best_ref_mv.as_int)
+                {
+                   tmp_err = INT_MAX;
+                   first_pass_motion_search(cpi, x, &zero_ref_mv, &tmp_mv,
+                                     lst_yv12, &tmp_err, recon_yoffset);
+
+                   if ( tmp_err < motion_error )
+                   {
+                        motion_error = tmp_err;
+                        d->bmi.mv.as_mv.row = tmp_mv.row;
+                        d->bmi.mv.as_mv.col = tmp_mv.col;
+                   }
+                }
+
+                /* Experimental search in a second reference frame ((0,0)
+                 * based only)
+                 */
+                if (cm->current_video_frame > 1)
+                {
+                    first_pass_motion_search(cpi, x, &zero_ref_mv, &tmp_mv, gld_yv12, &gf_motion_error, recon_yoffset);
+
+                    if ((gf_motion_error < motion_error) && (gf_motion_error < this_error))
+                    {
+                        second_ref_count++;
+                    }
+
+                    /* Reset to last frame as reference buffer */
+                    xd->pre.y_buffer = lst_yv12->y_buffer + recon_yoffset;
+                    xd->pre.u_buffer = lst_yv12->u_buffer + recon_uvoffset;
+                    xd->pre.v_buffer = lst_yv12->v_buffer + recon_uvoffset;
+                }
+
+skip_motion_search:
+                /* Intra assumed best */
+                best_ref_mv.as_int = 0;
+
+                if (motion_error <= this_error)
+                {
+                    /* Keep a count of cases where the inter and intra were
+                     * very close and very low. This helps with scene cut
+                     * detection for example in cropped clips with black bars
+                     * at the sides or top and bottom.
+                     */
+                    if( (((this_error-intrapenalty) * 9) <=
+                         (motion_error*10)) &&
+                        (this_error < (2*intrapenalty)) )
+                    {
+                        neutral_count++;
+                    }
+
+                    d->bmi.mv.as_mv.row *= 8;
+                    d->bmi.mv.as_mv.col *= 8;
+                    this_error = motion_error;
+                    vp8_set_mbmode_and_mvs(x, NEWMV, &d->bmi.mv);
+                    vp8_encode_inter16x16y(x);
+                    sum_mvr += d->bmi.mv.as_mv.row;
+                    sum_mvr_abs += abs(d->bmi.mv.as_mv.row);
+                    sum_mvc += d->bmi.mv.as_mv.col;
+                    sum_mvc_abs += abs(d->bmi.mv.as_mv.col);
+                    sum_mvrs += d->bmi.mv.as_mv.row * d->bmi.mv.as_mv.row;
+                    sum_mvcs += d->bmi.mv.as_mv.col * d->bmi.mv.as_mv.col;
+                    intercount++;
+
+                    best_ref_mv.as_int = d->bmi.mv.as_int;
+
+                    /* Was the vector non-zero */
+                    if (d->bmi.mv.as_int)
+                    {
+                        mvcount++;
+
+                        /* Was it different from the last non zero vector */
+                        if ( d->bmi.mv.as_int != lastmv_as_int )
+                            new_mv_count++;
+                        lastmv_as_int = d->bmi.mv.as_int;
+
+                        /* Does the Row vector point inwards or outwards */
+                        if (mb_row < cm->mb_rows / 2)
+                        {
+                            if (d->bmi.mv.as_mv.row > 0)
+                                sum_in_vectors--;
+                            else if (d->bmi.mv.as_mv.row < 0)
+                                sum_in_vectors++;
+                        }
+                        else if (mb_row > cm->mb_rows / 2)
+                        {
+                            if (d->bmi.mv.as_mv.row > 0)
+                                sum_in_vectors++;
+                            else if (d->bmi.mv.as_mv.row < 0)
+                                sum_in_vectors--;
+                        }
+
+                        /* Does the Row vector point inwards or outwards */
+                        if (mb_col < cm->mb_cols / 2)
+                        {
+                            if (d->bmi.mv.as_mv.col > 0)
+                                sum_in_vectors--;
+                            else if (d->bmi.mv.as_mv.col < 0)
+                                sum_in_vectors++;
+                        }
+                        else if (mb_col > cm->mb_cols / 2)
+                        {
+                            if (d->bmi.mv.as_mv.col > 0)
+                                sum_in_vectors++;
+                            else if (d->bmi.mv.as_mv.col < 0)
+                                sum_in_vectors--;
+                        }
+                    }
+                }
+            }
+
+            coded_error += (int64_t)this_error;
+
+            /* adjust to the next column of macroblocks */
+            x->src.y_buffer += 16;
+            x->src.u_buffer += 8;
+            x->src.v_buffer += 8;
+
+            recon_yoffset += 16;
+            recon_uvoffset += 8;
+        }
+
+        /* adjust to the next row of mbs */
+        x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
+        x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
+        x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
+
+        /* extend the recon for intra prediction */
+        vp8_extend_mb_row(new_yv12, xd->dst.y_buffer + 16, xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
+        vp8_clear_system_state();
+    }
+
+    vp8_clear_system_state();
+    {
+        double weight = 0.0;
+
+        FIRSTPASS_STATS fps;
+
+        fps.frame      = cm->current_video_frame ;
+        fps.intra_error = (double)(intra_error >> 8);
+        fps.coded_error = (double)(coded_error >> 8);
+        weight = simple_weight(cpi->Source);
+
+
+        if (weight < 0.1)
+            weight = 0.1;
+
+        fps.ssim_weighted_pred_err = fps.coded_error * weight;
+
+        fps.pcnt_inter  = 0.0;
+        fps.pcnt_motion = 0.0;
+        fps.MVr        = 0.0;
+        fps.mvr_abs     = 0.0;
+        fps.MVc        = 0.0;
+        fps.mvc_abs     = 0.0;
+        fps.MVrv       = 0.0;
+        fps.MVcv       = 0.0;
+        fps.mv_in_out_count  = 0.0;
+        fps.new_mv_count = 0.0;
+        fps.count      = 1.0;
+
+        fps.pcnt_inter   = 1.0 * (double)intercount / cm->MBs;
+        fps.pcnt_second_ref = 1.0 * (double)second_ref_count / cm->MBs;
+        fps.pcnt_neutral = 1.0 * (double)neutral_count / cm->MBs;
+
+        if (mvcount > 0)
+        {
+            fps.MVr = (double)sum_mvr / (double)mvcount;
+            fps.mvr_abs = (double)sum_mvr_abs / (double)mvcount;
+            fps.MVc = (double)sum_mvc / (double)mvcount;
+            fps.mvc_abs = (double)sum_mvc_abs / (double)mvcount;
+            fps.MVrv = ((double)sum_mvrs - (fps.MVr * fps.MVr / (double)mvcount)) / (double)mvcount;
+            fps.MVcv = ((double)sum_mvcs - (fps.MVc * fps.MVc / (double)mvcount)) / (double)mvcount;
+            fps.mv_in_out_count = (double)sum_in_vectors / (double)(mvcount * 2);
+            fps.new_mv_count = new_mv_count;
+
+            fps.pcnt_motion = 1.0 * (double)mvcount / cpi->common.MBs;
+        }
+
+        /* TODO:  handle the case when duration is set to 0, or something less
+         * than the full time between subsequent cpi->source_time_stamps
+         */
+        fps.duration = (double)(cpi->source->ts_end
+                       - cpi->source->ts_start);
+
+        /* don't want to do output stats with a stack variable! */
+        memcpy(&cpi->twopass.this_frame_stats,
+               &fps,
+               sizeof(FIRSTPASS_STATS));
+        output_stats(cpi, cpi->output_pkt_list, &cpi->twopass.this_frame_stats);
+        accumulate_stats(&cpi->twopass.total_stats, &fps);
+    }
+
+    /* Copy the previous Last Frame into the GF buffer if specific
+     * conditions for doing so are met
+     */
+    if ((cm->current_video_frame > 0) &&
+        (cpi->twopass.this_frame_stats.pcnt_inter > 0.20) &&
+        ((cpi->twopass.this_frame_stats.intra_error /
+          DOUBLE_DIVIDE_CHECK(cpi->twopass.this_frame_stats.coded_error)) >
+         2.0))
+    {
+        vp8_yv12_copy_frame(lst_yv12, gld_yv12);
+    }
+
+    /* swap frame pointers so last frame refers to the frame we just
+     * compressed
+     */
+    vp8_swap_yv12_buffer(lst_yv12, new_yv12);
+    vp8_yv12_extend_frame_borders(lst_yv12);
+
+    /* Special case for the first frame. Copy into the GF buffer as a
+     * second reference.
+     */
+    if (cm->current_video_frame == 0)
+    {
+        vp8_yv12_copy_frame(lst_yv12, gld_yv12);
+    }
+
+
+    /* use this to see what the first pass reconstruction looks like */
+    if (0)
+    {
+        char filename[512];
+        FILE *recon_file;
+        sprintf(filename, "enc%04d.yuv", (int) cm->current_video_frame);
+
+        if (cm->current_video_frame == 0)
+            recon_file = fopen(filename, "wb");
+        else
+            recon_file = fopen(filename, "ab");
+
+        (void) fwrite(lst_yv12->buffer_alloc, lst_yv12->frame_size, 1,
+                      recon_file);
+        fclose(recon_file);
+    }
+
+    cm->current_video_frame++;
+
+}
+extern const int vp8_bits_per_mb[2][QINDEX_RANGE];
+
+/* Estimate a cost per mb attributable to overheads such as the coding of
+ * modes and motion vectors.
+ * Currently simplistic in its assumptions for testing.
+ */
+
+static double bitcost( double prob )
+{
+  if (prob > 0.000122)
+    return -log(prob) / log(2.0);
+  else
+    return 13.0;
+}
+static int64_t estimate_modemvcost(VP8_COMP *cpi,
+                                     FIRSTPASS_STATS * fpstats)
+{
+    int mv_cost;
+    int64_t mode_cost;
+
+    double av_pct_inter = fpstats->pcnt_inter / fpstats->count;
+    double av_pct_motion = fpstats->pcnt_motion / fpstats->count;
+    double av_intra = (1.0 - av_pct_inter);
+
+    double zz_cost;
+    double motion_cost;
+    double intra_cost;
+
+    zz_cost = bitcost(av_pct_inter - av_pct_motion);
+    motion_cost = bitcost(av_pct_motion);
+    intra_cost = bitcost(av_intra);
+
+    /* Estimate of extra bits per mv overhead for mbs
+     * << 9 is the normalization to the (bits * 512) used in vp8_bits_per_mb
+     */
+    mv_cost = ((int)(fpstats->new_mv_count / fpstats->count) * 8) << 9;
+
+    /* Crude estimate of overhead cost from modes
+     * << 9 is the normalization to (bits * 512) used in vp8_bits_per_mb
+     */
+    mode_cost = (int64_t)((((av_pct_inter - av_pct_motion) * zz_cost) +
+                             (av_pct_motion * motion_cost) +
+                             (av_intra * intra_cost)) * cpi->common.MBs) * 512;
+
+    return mv_cost + mode_cost;
+}
+
+static double calc_correction_factor( double err_per_mb,
+                                      double err_devisor,
+                                      double pt_low,
+                                      double pt_high,
+                                      int Q )
+{
+    double power_term;
+    double error_term = err_per_mb / err_devisor;
+    double correction_factor;
+
+    /* Adjustment based on Q to power term. */
+    power_term = pt_low + (Q * 0.01);
+    power_term = (power_term > pt_high) ? pt_high : power_term;
+
+    /* Adjustments to error term */
+    /* TBD */
+
+    /* Calculate correction factor */
+    correction_factor = pow(error_term, power_term);
+
+    /* Clip range */
+    correction_factor =
+        (correction_factor < 0.05)
+            ? 0.05 : (correction_factor > 5.0) ? 5.0 : correction_factor;
+
+    return correction_factor;
+}
+
+static int estimate_max_q(VP8_COMP *cpi,
+                          FIRSTPASS_STATS * fpstats,
+                          int section_target_bandwitdh,
+                          int overhead_bits )
+{
+    int Q;
+    int num_mbs = cpi->common.MBs;
+    int target_norm_bits_per_mb;
+
+    double section_err = (fpstats->coded_error / fpstats->count);
+    double err_per_mb = section_err / num_mbs;
+    double err_correction_factor;
+    double speed_correction = 1.0;
+    int overhead_bits_per_mb;
+
+    if (section_target_bandwitdh <= 0)
+        return cpi->twopass.maxq_max_limit;       /* Highest value allowed */
+
+    target_norm_bits_per_mb =
+        (section_target_bandwitdh < (1 << 20))
+            ? (512 * section_target_bandwitdh) / num_mbs
+            : 512 * (section_target_bandwitdh / num_mbs);
+
+    /* Calculate a corrective factor based on a rolling ratio of bits spent
+     * vs target bits
+     */
+    if ((cpi->rolling_target_bits > 0) &&
+        (cpi->active_worst_quality < cpi->worst_quality))
+    {
+        double rolling_ratio;
+
+        rolling_ratio = (double)cpi->rolling_actual_bits /
+                        (double)cpi->rolling_target_bits;
+
+        if (rolling_ratio < 0.95)
+            cpi->twopass.est_max_qcorrection_factor -= 0.005;
+        else if (rolling_ratio > 1.05)
+            cpi->twopass.est_max_qcorrection_factor += 0.005;
+
+        cpi->twopass.est_max_qcorrection_factor =
+            (cpi->twopass.est_max_qcorrection_factor < 0.1)
+                ? 0.1
+                : (cpi->twopass.est_max_qcorrection_factor > 10.0)
+                    ? 10.0 : cpi->twopass.est_max_qcorrection_factor;
+    }
+
+    /* Corrections for higher compression speed settings
+     * (reduced compression expected)
+     */
+    if ((cpi->compressor_speed == 3) || (cpi->compressor_speed == 1))
+    {
+        if (cpi->oxcf.cpu_used <= 5)
+            speed_correction = 1.04 + (cpi->oxcf.cpu_used * 0.04);
+        else
+            speed_correction = 1.25;
+    }
+
+    /* Estimate of overhead bits per mb */
+    /* Correction to overhead bits for min allowed Q. */
+    overhead_bits_per_mb = overhead_bits / num_mbs;
+    overhead_bits_per_mb = (int)(overhead_bits_per_mb *
+                            pow( 0.98, (double)cpi->twopass.maxq_min_limit ));
+
+    /* Try and pick a max Q that will be high enough to encode the
+     * content at the given rate.
+     */
+    for (Q = cpi->twopass.maxq_min_limit; Q < cpi->twopass.maxq_max_limit; Q++)
+    {
+        int bits_per_mb_at_this_q;
+
+        /* Error per MB based correction factor */
+        err_correction_factor =
+            calc_correction_factor(err_per_mb, 150.0, 0.40, 0.90, Q);
+
+        bits_per_mb_at_this_q =
+            vp8_bits_per_mb[INTER_FRAME][Q] + overhead_bits_per_mb;
+
+        bits_per_mb_at_this_q = (int)(.5 + err_correction_factor
+            * speed_correction * cpi->twopass.est_max_qcorrection_factor
+            * cpi->twopass.section_max_qfactor
+            * (double)bits_per_mb_at_this_q);
+
+        /* Mode and motion overhead */
+        /* As Q rises in real encode loop rd code will force overhead down
+         * We make a crude adjustment for this here as *.98 per Q step.
+         */
+        overhead_bits_per_mb = (int)((double)overhead_bits_per_mb * 0.98);
+
+        if (bits_per_mb_at_this_q <= target_norm_bits_per_mb)
+            break;
+    }
+
+    /* Restriction on active max q for constrained quality mode. */
+    if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+         (Q < cpi->cq_target_quality) )
+    {
+        Q = cpi->cq_target_quality;
+    }
+
+    /* Adjust maxq_min_limit and maxq_max_limit limits based on
+     * average q observed in clip for non kf/gf.arf frames
+     * Give average a chance to settle though.
+     */
+    if ( (cpi->ni_frames >
+                  ((int)cpi->twopass.total_stats.count >> 8)) &&
+         (cpi->ni_frames > 150) )
+    {
+        cpi->twopass.maxq_max_limit = ((cpi->ni_av_qi + 32) < cpi->worst_quality)
+                                  ? (cpi->ni_av_qi + 32) : cpi->worst_quality;
+        cpi->twopass.maxq_min_limit = ((cpi->ni_av_qi - 32) > cpi->best_quality)
+                                  ? (cpi->ni_av_qi - 32) : cpi->best_quality;
+    }
+
+    return Q;
+}
+
+/* For cq mode estimate a cq level that matches the observed
+ * complexity and data rate.
+ */
+static int estimate_cq( VP8_COMP *cpi,
+                        FIRSTPASS_STATS * fpstats,
+                        int section_target_bandwitdh,
+                        int overhead_bits )
+{
+    int Q;
+    int num_mbs = cpi->common.MBs;
+    int target_norm_bits_per_mb;
+
+    double section_err = (fpstats->coded_error / fpstats->count);
+    double err_per_mb = section_err / num_mbs;
+    double err_correction_factor;
+    double speed_correction = 1.0;
+    double clip_iiratio;
+    double clip_iifactor;
+    int overhead_bits_per_mb;
+
+    if (0)
+    {
+        FILE *f = fopen("epmp.stt", "a");
+        fprintf(f, "%10.2f\n", err_per_mb );
+        fclose(f);
+    }
+
+    target_norm_bits_per_mb = (section_target_bandwitdh < (1 << 20))
+                              ? (512 * section_target_bandwitdh) / num_mbs
+                              : 512 * (section_target_bandwitdh / num_mbs);
+
+    /* Estimate of overhead bits per mb */
+    overhead_bits_per_mb = overhead_bits / num_mbs;
+
+    /* Corrections for higher compression speed settings
+     * (reduced compression expected)
+     */
+    if ((cpi->compressor_speed == 3) || (cpi->compressor_speed == 1))
+    {
+        if (cpi->oxcf.cpu_used <= 5)
+            speed_correction = 1.04 + (cpi->oxcf.cpu_used * 0.04);
+        else
+            speed_correction = 1.25;
+    }
+
+    /* II ratio correction factor for clip as a whole */
+    clip_iiratio = cpi->twopass.total_stats.intra_error /
+                   DOUBLE_DIVIDE_CHECK(cpi->twopass.total_stats.coded_error);
+    clip_iifactor = 1.0 - ((clip_iiratio - 10.0) * 0.025);
+    if (clip_iifactor < 0.80)
+        clip_iifactor = 0.80;
+
+    /* Try and pick a Q that can encode the content at the given rate. */
+    for (Q = 0; Q < MAXQ; Q++)
+    {
+        int bits_per_mb_at_this_q;
+
+        /* Error per MB based correction factor */
+        err_correction_factor =
+            calc_correction_factor(err_per_mb, 100.0, 0.40, 0.90, Q);
+
+        bits_per_mb_at_this_q =
+            vp8_bits_per_mb[INTER_FRAME][Q] + overhead_bits_per_mb;
+
+        bits_per_mb_at_this_q =
+            (int)( .5 + err_correction_factor *
+                        speed_correction *
+                        clip_iifactor *
+                        (double)bits_per_mb_at_this_q);
+
+        /* Mode and motion overhead */
+        /* As Q rises in real encode loop rd code will force overhead down
+         * We make a crude adjustment for this here as *.98 per Q step.
+         */
+        overhead_bits_per_mb = (int)((double)overhead_bits_per_mb * 0.98);
+
+        if (bits_per_mb_at_this_q <= target_norm_bits_per_mb)
+            break;
+    }
+
+    /* Clip value to range "best allowed to (worst allowed - 1)" */
+    Q = cq_level[Q];
+    if ( Q >= cpi->worst_quality )
+        Q = cpi->worst_quality - 1;
+    if ( Q < cpi->best_quality )
+        Q = cpi->best_quality;
+
+    return Q;
+}
+
+static int estimate_q(VP8_COMP *cpi, double section_err, int section_target_bandwitdh)
+{
+    int Q;
+    int num_mbs = cpi->common.MBs;
+    int target_norm_bits_per_mb;
+
+    double err_per_mb = section_err / num_mbs;
+    double err_correction_factor;
+    double speed_correction = 1.0;
+
+    target_norm_bits_per_mb = (section_target_bandwitdh < (1 << 20)) ? (512 * section_target_bandwitdh) / num_mbs : 512 * (section_target_bandwitdh / num_mbs);
+
+    /* Corrections for higher compression speed settings
+     * (reduced compression expected)
+     */
+    if ((cpi->compressor_speed == 3) || (cpi->compressor_speed == 1))
+    {
+        if (cpi->oxcf.cpu_used <= 5)
+            speed_correction = 1.04 + (cpi->oxcf.cpu_used * 0.04);
+        else
+            speed_correction = 1.25;
+    }
+
+    /* Try and pick a Q that can encode the content at the given rate. */
+    for (Q = 0; Q < MAXQ; Q++)
+    {
+        int bits_per_mb_at_this_q;
+
+        /* Error per MB based correction factor */
+        err_correction_factor =
+            calc_correction_factor(err_per_mb, 150.0, 0.40, 0.90, Q);
+
+        bits_per_mb_at_this_q =
+            (int)( .5 + ( err_correction_factor *
+                          speed_correction *
+                          cpi->twopass.est_max_qcorrection_factor *
+                          (double)vp8_bits_per_mb[INTER_FRAME][Q] / 1.0 ) );
+
+        if (bits_per_mb_at_this_q <= target_norm_bits_per_mb)
+            break;
+    }
+
+    return Q;
+}
+
+/* Estimate a worst case Q for a KF group */
+static int estimate_kf_group_q(VP8_COMP *cpi, double section_err, int section_target_bandwitdh, double group_iiratio)
+{
+    int Q;
+    int num_mbs = cpi->common.MBs;
+    int target_norm_bits_per_mb = (512 * section_target_bandwitdh) / num_mbs;
+    int bits_per_mb_at_this_q;
+
+    double err_per_mb = section_err / num_mbs;
+    double err_correction_factor;
+    double speed_correction = 1.0;
+    double current_spend_ratio = 1.0;
+
+    double pow_highq = (POW1 < 0.6) ? POW1 + 0.3 : 0.90;
+    double pow_lowq = (POW1 < 0.7) ? POW1 + 0.1 : 0.80;
+
+    double iiratio_correction_factor = 1.0;
+
+    double combined_correction_factor;
+
+    /* Trap special case where the target is <= 0 */
+    if (target_norm_bits_per_mb <= 0)
+        return MAXQ * 2;
+
+    /* Calculate a corrective factor based on a rolling ratio of bits spent
+     *  vs target bits
+     * This is clamped to the range 0.1 to 10.0
+     */
+    if (cpi->long_rolling_target_bits <= 0)
+        current_spend_ratio = 10.0;
+    else
+    {
+        current_spend_ratio = (double)cpi->long_rolling_actual_bits / (double)cpi->long_rolling_target_bits;
+        current_spend_ratio = (current_spend_ratio > 10.0) ? 10.0 : (current_spend_ratio < 0.1) ? 0.1 : current_spend_ratio;
+    }
+
+    /* Calculate a correction factor based on the quality of prediction in
+     * the sequence as indicated by intra_inter error score ratio (IIRatio)
+     * The idea here is to favour subsampling in the hardest sections vs
+     * the easyest.
+     */
+    iiratio_correction_factor = 1.0 - ((group_iiratio - 6.0) * 0.1);
+
+    if (iiratio_correction_factor < 0.5)
+        iiratio_correction_factor = 0.5;
+
+    /* Corrections for higher compression speed settings
+     * (reduced compression expected)
+     */
+    if ((cpi->compressor_speed == 3) || (cpi->compressor_speed == 1))
+    {
+        if (cpi->oxcf.cpu_used <= 5)
+            speed_correction = 1.04 + (cpi->oxcf.cpu_used * 0.04);
+        else
+            speed_correction = 1.25;
+    }
+
+    /* Combine the various factors calculated above */
+    combined_correction_factor = speed_correction * iiratio_correction_factor * current_spend_ratio;
+
+    /* Try and pick a Q that should be high enough to encode the content at
+     * the given rate.
+     */
+    for (Q = 0; Q < MAXQ; Q++)
+    {
+        /* Error per MB based correction factor */
+        err_correction_factor =
+            calc_correction_factor(err_per_mb, 150.0, pow_lowq, pow_highq, Q);
+
+        bits_per_mb_at_this_q =
+            (int)(.5 + ( err_correction_factor *
+                         combined_correction_factor *
+                         (double)vp8_bits_per_mb[INTER_FRAME][Q]) );
+
+        if (bits_per_mb_at_this_q <= target_norm_bits_per_mb)
+            break;
+    }
+
+    /* If we could not hit the target even at Max Q then estimate what Q
+     * would have been required
+     */
+    while ((bits_per_mb_at_this_q > target_norm_bits_per_mb)  && (Q < (MAXQ * 2)))
+    {
+
+        bits_per_mb_at_this_q = (int)(0.96 * bits_per_mb_at_this_q);
+        Q++;
+    }
+
+    if (0)
+    {
+        FILE *f = fopen("estkf_q.stt", "a");
+        fprintf(f, "%8d %8d %8d %8.2f %8.3f %8.2f %8.3f %8.3f %8.3f %8d\n", cpi->common.current_video_frame, bits_per_mb_at_this_q,
+                target_norm_bits_per_mb, err_per_mb, err_correction_factor,
+                current_spend_ratio, group_iiratio, iiratio_correction_factor,
+                (double)cpi->buffer_level / (double)cpi->oxcf.optimal_buffer_level, Q);
+        fclose(f);
+    }
+
+    return Q;
+}
+
+void vp8_init_second_pass(VP8_COMP *cpi)
+{
+    FIRSTPASS_STATS this_frame;
+    FIRSTPASS_STATS *start_pos;
+
+    double two_pass_min_rate = (double)(cpi->oxcf.target_bandwidth * cpi->oxcf.two_pass_vbrmin_section / 100);
+
+    zero_stats(&cpi->twopass.total_stats);
+    zero_stats(&cpi->twopass.total_left_stats);
+
+    if (!cpi->twopass.stats_in_end)
+        return;
+
+    cpi->twopass.total_stats = *cpi->twopass.stats_in_end;
+    cpi->twopass.total_left_stats = cpi->twopass.total_stats;
+
+    /* each frame can have a different duration, as the frame rate in the
+     * source isn't guaranteed to be constant.   The frame rate prior to
+     * the first frame encoded in the second pass is a guess.  However the
+     * sum duration is not. Its calculated based on the actual durations of
+     * all frames from the first pass.
+     */
+    vp8_new_framerate(cpi, 10000000.0 * cpi->twopass.total_stats.count / cpi->twopass.total_stats.duration);
+
+    cpi->output_framerate = cpi->framerate;
+    cpi->twopass.bits_left = (int64_t)(cpi->twopass.total_stats.duration * cpi->oxcf.target_bandwidth / 10000000.0) ;
+    cpi->twopass.bits_left -= (int64_t)(cpi->twopass.total_stats.duration * two_pass_min_rate / 10000000.0);
+
+    /* Calculate a minimum intra value to be used in determining the IIratio
+     * scores used in the second pass. We have this minimum to make sure
+     * that clips that are static but "low complexity" in the intra domain
+     * are still boosted appropriately for KF/GF/ARF
+     */
+    cpi->twopass.kf_intra_err_min = KF_MB_INTRA_MIN * cpi->common.MBs;
+    cpi->twopass.gf_intra_err_min = GF_MB_INTRA_MIN * cpi->common.MBs;
+
+    /* Scan the first pass file and calculate an average Intra / Inter error
+     * score ratio for the sequence
+     */
+    {
+        double sum_iiratio = 0.0;
+        double IIRatio;
+
+        start_pos = cpi->twopass.stats_in; /* Note starting "file" position */
+
+        while (input_stats(cpi, &this_frame) != EOF)
+        {
+            IIRatio = this_frame.intra_error / DOUBLE_DIVIDE_CHECK(this_frame.coded_error);
+            IIRatio = (IIRatio < 1.0) ? 1.0 : (IIRatio > 20.0) ? 20.0 : IIRatio;
+            sum_iiratio += IIRatio;
+        }
+
+        cpi->twopass.avg_iiratio = sum_iiratio / DOUBLE_DIVIDE_CHECK((double)cpi->twopass.total_stats.count);
+
+        /* Reset file position */
+        reset_fpf_position(cpi, start_pos);
+    }
+
+    /* Scan the first pass file and calculate a modified total error based
+     * upon the bias/power function used to allocate bits
+     */
+    {
+        start_pos = cpi->twopass.stats_in;  /* Note starting "file" position */
+
+        cpi->twopass.modified_error_total = 0.0;
+        cpi->twopass.modified_error_used = 0.0;
+
+        while (input_stats(cpi, &this_frame) != EOF)
+        {
+            cpi->twopass.modified_error_total += calculate_modified_err(cpi, &this_frame);
+        }
+        cpi->twopass.modified_error_left = cpi->twopass.modified_error_total;
+
+        reset_fpf_position(cpi, start_pos);  /* Reset file position */
+
+    }
+}
+
+void vp8_end_second_pass(VP8_COMP *cpi)
+{
+  (void)cpi;
+}
+
+/* This function gives and estimate of how badly we believe the prediction
+ * quality is decaying from frame to frame.
+ */
+static double get_prediction_decay_rate(VP8_COMP *cpi, FIRSTPASS_STATS *next_frame)
+{
+    double prediction_decay_rate;
+    double motion_decay;
+    double motion_pct = next_frame->pcnt_motion;
+    (void)cpi;
+
+    /* Initial basis is the % mbs inter coded */
+    prediction_decay_rate = next_frame->pcnt_inter;
+
+    /* High % motion -> somewhat higher decay rate */
+    motion_decay = (1.0 - (motion_pct / 20.0));
+    if (motion_decay < prediction_decay_rate)
+        prediction_decay_rate = motion_decay;
+
+    /* Adjustment to decay rate based on speed of motion */
+    {
+        double this_mv_rabs;
+        double this_mv_cabs;
+        double distance_factor;
+
+        this_mv_rabs = fabs(next_frame->mvr_abs * motion_pct);
+        this_mv_cabs = fabs(next_frame->mvc_abs * motion_pct);
+
+        distance_factor = sqrt((this_mv_rabs * this_mv_rabs) +
+                               (this_mv_cabs * this_mv_cabs)) / 250.0;
+        distance_factor = ((distance_factor > 1.0)
+                                ? 0.0 : (1.0 - distance_factor));
+        if (distance_factor < prediction_decay_rate)
+            prediction_decay_rate = distance_factor;
+    }
+
+    return prediction_decay_rate;
+}
+
+/* Function to test for a condition where a complex transition is followed
+ * by a static section. For example in slide shows where there is a fade
+ * between slides. This is to help with more optimal kf and gf positioning.
+ */
+static int detect_transition_to_still(
+    VP8_COMP *cpi,
+    int frame_interval,
+    int still_interval,
+    double loop_decay_rate,
+    double decay_accumulator )
+{
+    int trans_to_still = 0;
+
+    /* Break clause to detect very still sections after motion
+     * For example a static image after a fade or other transition
+     * instead of a clean scene cut.
+     */
+    if ( (frame_interval > MIN_GF_INTERVAL) &&
+         (loop_decay_rate >= 0.999) &&
+         (decay_accumulator < 0.9) )
+    {
+        int j;
+        FIRSTPASS_STATS * position = cpi->twopass.stats_in;
+        FIRSTPASS_STATS tmp_next_frame;
+        double decay_rate;
+
+        /* Look ahead a few frames to see if static condition persists... */
+        for ( j = 0; j < still_interval; j++ )
+        {
+            if (EOF == input_stats(cpi, &tmp_next_frame))
+                break;
+
+            decay_rate = get_prediction_decay_rate(cpi, &tmp_next_frame);
+            if ( decay_rate < 0.999 )
+                break;
+        }
+        /* Reset file position */
+        reset_fpf_position(cpi, position);
+
+        /* Only if it does do we signal a transition to still */
+        if ( j == still_interval )
+            trans_to_still = 1;
+    }
+
+    return trans_to_still;
+}
+
+/* This function detects a flash through the high relative pcnt_second_ref
+ * score in the frame following a flash frame. The offset passed in should
+ * reflect this
+ */
+static int detect_flash( VP8_COMP *cpi, int offset )
+{
+    FIRSTPASS_STATS next_frame;
+
+    int flash_detected = 0;
+
+    /* Read the frame data. */
+    /* The return is 0 (no flash detected) if not a valid frame */
+    if ( read_frame_stats(cpi, &next_frame, offset) != EOF )
+    {
+        /* What we are looking for here is a situation where there is a
+         * brief break in prediction (such as a flash) but subsequent frames
+         * are reasonably well predicted by an earlier (pre flash) frame.
+         * The recovery after a flash is indicated by a high pcnt_second_ref
+         * comapred to pcnt_inter.
+         */
+        if ( (next_frame.pcnt_second_ref > next_frame.pcnt_inter) &&
+             (next_frame.pcnt_second_ref >= 0.5 ) )
+        {
+            flash_detected = 1;
+
+            /*if (1)
+            {
+                FILE *f = fopen("flash.stt", "a");
+                fprintf(f, "%8.0f %6.2f %6.2f\n",
+                    next_frame.frame,
+                    next_frame.pcnt_inter,
+                    next_frame.pcnt_second_ref);
+                fclose(f);
+            }*/
+        }
+    }
+
+    return flash_detected;
+}
+
+/* Update the motion related elements to the GF arf boost calculation */
+static void accumulate_frame_motion_stats(
+    VP8_COMP *cpi,
+    FIRSTPASS_STATS * this_frame,
+    double * this_frame_mv_in_out,
+    double * mv_in_out_accumulator,
+    double * abs_mv_in_out_accumulator,
+    double * mv_ratio_accumulator )
+{
+    double this_frame_mvr_ratio;
+    double this_frame_mvc_ratio;
+    double motion_pct;
+    (void)cpi;
+
+    /* Accumulate motion stats. */
+    motion_pct = this_frame->pcnt_motion;
+
+    /* Accumulate Motion In/Out of frame stats */
+    *this_frame_mv_in_out = this_frame->mv_in_out_count * motion_pct;
+    *mv_in_out_accumulator += this_frame->mv_in_out_count * motion_pct;
+    *abs_mv_in_out_accumulator +=
+        fabs(this_frame->mv_in_out_count * motion_pct);
+
+    /* Accumulate a measure of how uniform (or conversely how random)
+     * the motion field is. (A ratio of absmv / mv)
+     */
+    if (motion_pct > 0.05)
+    {
+        this_frame_mvr_ratio = fabs(this_frame->mvr_abs) /
+                               DOUBLE_DIVIDE_CHECK(fabs(this_frame->MVr));
+
+        this_frame_mvc_ratio = fabs(this_frame->mvc_abs) /
+                               DOUBLE_DIVIDE_CHECK(fabs(this_frame->MVc));
+
+         *mv_ratio_accumulator +=
+            (this_frame_mvr_ratio < this_frame->mvr_abs)
+                ? (this_frame_mvr_ratio * motion_pct)
+                : this_frame->mvr_abs * motion_pct;
+
+        *mv_ratio_accumulator +=
+            (this_frame_mvc_ratio < this_frame->mvc_abs)
+                ? (this_frame_mvc_ratio * motion_pct)
+                : this_frame->mvc_abs * motion_pct;
+
+    }
+}
+
+/* Calculate a baseline boost number for the current frame. */
+static double calc_frame_boost(
+    VP8_COMP *cpi,
+    FIRSTPASS_STATS * this_frame,
+    double this_frame_mv_in_out )
+{
+    double frame_boost;
+
+    /* Underlying boost factor is based on inter intra error ratio */
+    if (this_frame->intra_error > cpi->twopass.gf_intra_err_min)
+        frame_boost = (IIFACTOR * this_frame->intra_error /
+                      DOUBLE_DIVIDE_CHECK(this_frame->coded_error));
+    else
+        frame_boost = (IIFACTOR * cpi->twopass.gf_intra_err_min /
+                      DOUBLE_DIVIDE_CHECK(this_frame->coded_error));
+
+    /* Increase boost for frames where new data coming into frame
+     * (eg zoom out). Slightly reduce boost if there is a net balance
+     * of motion out of the frame (zoom in).
+     * The range for this_frame_mv_in_out is -1.0 to +1.0
+     */
+    if (this_frame_mv_in_out > 0.0)
+        frame_boost += frame_boost * (this_frame_mv_in_out * 2.0);
+    /* In extreme case boost is halved */
+    else
+        frame_boost += frame_boost * (this_frame_mv_in_out / 2.0);
+
+    /* Clip to maximum */
+    if (frame_boost > GF_RMAX)
+        frame_boost = GF_RMAX;
+
+    return frame_boost;
+}
+
+#if NEW_BOOST
+static int calc_arf_boost(
+    VP8_COMP *cpi,
+    int offset,
+    int f_frames,
+    int b_frames,
+    int *f_boost,
+    int *b_boost )
+{
+    FIRSTPASS_STATS this_frame;
+
+    int i;
+    double boost_score = 0.0;
+    double mv_ratio_accumulator = 0.0;
+    double decay_accumulator = 1.0;
+    double this_frame_mv_in_out = 0.0;
+    double mv_in_out_accumulator = 0.0;
+    double abs_mv_in_out_accumulator = 0.0;
+    double r;
+    int flash_detected = 0;
+
+    /* Search forward from the proposed arf/next gf position */
+    for ( i = 0; i < f_frames; i++ )
+    {
+        if ( read_frame_stats(cpi, &this_frame, (i+offset)) == EOF )
+            break;
+
+        /* Update the motion related elements to the boost calculation */
+        accumulate_frame_motion_stats( cpi, &this_frame,
+            &this_frame_mv_in_out, &mv_in_out_accumulator,
+            &abs_mv_in_out_accumulator, &mv_ratio_accumulator );
+
+        /* Calculate the baseline boost number for this frame */
+        r = calc_frame_boost( cpi, &this_frame, this_frame_mv_in_out );
+
+        /* We want to discount the the flash frame itself and the recovery
+         * frame that follows as both will have poor scores.
+         */
+        flash_detected = detect_flash(cpi, (i+offset)) ||
+                         detect_flash(cpi, (i+offset+1));
+
+        /* Cumulative effect of prediction quality decay */
+        if ( !flash_detected )
+        {
+            decay_accumulator =
+                decay_accumulator *
+                get_prediction_decay_rate(cpi, &this_frame);
+            decay_accumulator =
+                decay_accumulator < 0.1 ? 0.1 : decay_accumulator;
+        }
+        boost_score += (decay_accumulator * r);
+
+        /* Break out conditions. */
+        if  ( (!flash_detected) &&
+              ((mv_ratio_accumulator > 100.0) ||
+               (abs_mv_in_out_accumulator > 3.0) ||
+               (mv_in_out_accumulator < -2.0) ) )
+        {
+            break;
+        }
+    }
+
+    *f_boost = (int)(boost_score * 100.0) >> 4;
+
+    /* Reset for backward looking loop */
+    boost_score = 0.0;
+    mv_ratio_accumulator = 0.0;
+    decay_accumulator = 1.0;
+    this_frame_mv_in_out = 0.0;
+    mv_in_out_accumulator = 0.0;
+    abs_mv_in_out_accumulator = 0.0;
+
+    /* Search forward from the proposed arf/next gf position */
+    for ( i = -1; i >= -b_frames; i-- )
+    {
+        if ( read_frame_stats(cpi, &this_frame, (i+offset)) == EOF )
+            break;
+
+        /* Update the motion related elements to the boost calculation */
+        accumulate_frame_motion_stats( cpi, &this_frame,
+            &this_frame_mv_in_out, &mv_in_out_accumulator,
+            &abs_mv_in_out_accumulator, &mv_ratio_accumulator );
+
+        /* Calculate the baseline boost number for this frame */
+        r = calc_frame_boost( cpi, &this_frame, this_frame_mv_in_out );
+
+        /* We want to discount the the flash frame itself and the recovery
+         * frame that follows as both will have poor scores.
+         */
+        flash_detected = detect_flash(cpi, (i+offset)) ||
+                         detect_flash(cpi, (i+offset+1));
+
+        /* Cumulative effect of prediction quality decay */
+        if ( !flash_detected )
+        {
+            decay_accumulator =
+                decay_accumulator *
+                get_prediction_decay_rate(cpi, &this_frame);
+            decay_accumulator =
+                decay_accumulator < 0.1 ? 0.1 : decay_accumulator;
+        }
+
+        boost_score += (decay_accumulator * r);
+
+        /* Break out conditions. */
+        if  ( (!flash_detected) &&
+              ((mv_ratio_accumulator > 100.0) ||
+               (abs_mv_in_out_accumulator > 3.0) ||
+               (mv_in_out_accumulator < -2.0) ) )
+        {
+            break;
+        }
+    }
+    *b_boost = (int)(boost_score * 100.0) >> 4;
+
+    return (*f_boost + *b_boost);
+}
+#endif
+
+/* Analyse and define a gf/arf group . */
+static void define_gf_group(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame)
+{
+    FIRSTPASS_STATS next_frame;
+    FIRSTPASS_STATS *start_pos;
+    int i;
+    double r;
+    double boost_score = 0.0;
+    double old_boost_score = 0.0;
+    double gf_group_err = 0.0;
+    double gf_first_frame_err = 0.0;
+    double mod_frame_err = 0.0;
+
+    double mv_ratio_accumulator = 0.0;
+    double decay_accumulator = 1.0;
+
+    double loop_decay_rate = 1.00;          /* Starting decay rate */
+
+    double this_frame_mv_in_out = 0.0;
+    double mv_in_out_accumulator = 0.0;
+    double abs_mv_in_out_accumulator = 0.0;
+    double mod_err_per_mb_accumulator = 0.0;
+
+    int max_bits = frame_max_bits(cpi);     /* Max for a single frame */
+
+    unsigned int allow_alt_ref =
+                    cpi->oxcf.play_alternate && cpi->oxcf.lag_in_frames;
+
+    int alt_boost = 0;
+    int f_boost = 0;
+    int b_boost = 0;
+    int flash_detected;
+
+    cpi->twopass.gf_group_bits = 0;
+    cpi->twopass.gf_decay_rate = 0;
+
+    vp8_clear_system_state();
+
+    start_pos = cpi->twopass.stats_in;
+
+    memset(&next_frame, 0, sizeof(next_frame)); /* assure clean */
+
+    /* Load stats for the current frame. */
+    mod_frame_err = calculate_modified_err(cpi, this_frame);
+
+    /* Note the error of the frame at the start of the group (this will be
+     * the GF frame error if we code a normal gf
+     */
+    gf_first_frame_err = mod_frame_err;
+
+    /* Special treatment if the current frame is a key frame (which is also
+     * a gf). If it is then its error score (and hence bit allocation) need
+     * to be subtracted out from the calculation for the GF group
+     */
+    if (cpi->common.frame_type == KEY_FRAME)
+        gf_group_err -= gf_first_frame_err;
+
+    /* Scan forward to try and work out how many frames the next gf group
+     * should contain and what level of boost is appropriate for the GF
+     * or ARF that will be coded with the group
+     */
+    i = 0;
+
+    while (((i < cpi->twopass.static_scene_max_gf_interval) ||
+            ((cpi->twopass.frames_to_key - i) < MIN_GF_INTERVAL)) &&
+           (i < cpi->twopass.frames_to_key))
+    {
+        i++;
+
+        /* Accumulate error score of frames in this gf group */
+        mod_frame_err = calculate_modified_err(cpi, this_frame);
+
+        gf_group_err += mod_frame_err;
+
+        mod_err_per_mb_accumulator +=
+            mod_frame_err / DOUBLE_DIVIDE_CHECK((double)cpi->common.MBs);
+
+        if (EOF == input_stats(cpi, &next_frame))
+            break;
+
+        /* Test for the case where there is a brief flash but the prediction
+         * quality back to an earlier frame is then restored.
+         */
+        flash_detected = detect_flash(cpi, 0);
+
+        /* Update the motion related elements to the boost calculation */
+        accumulate_frame_motion_stats( cpi, &next_frame,
+            &this_frame_mv_in_out, &mv_in_out_accumulator,
+            &abs_mv_in_out_accumulator, &mv_ratio_accumulator );
+
+        /* Calculate a baseline boost number for this frame */
+        r = calc_frame_boost( cpi, &next_frame, this_frame_mv_in_out );
+
+        /* Cumulative effect of prediction quality decay */
+        if ( !flash_detected )
+        {
+            loop_decay_rate = get_prediction_decay_rate(cpi, &next_frame);
+            decay_accumulator = decay_accumulator * loop_decay_rate;
+            decay_accumulator =
+                decay_accumulator < 0.1 ? 0.1 : decay_accumulator;
+        }
+        boost_score += (decay_accumulator * r);
+
+        /* Break clause to detect very still sections after motion
+         * For example a staic image after a fade or other transition.
+         */
+        if ( detect_transition_to_still( cpi, i, 5,
+                                         loop_decay_rate,
+                                         decay_accumulator ) )
+        {
+            allow_alt_ref = 0;
+            boost_score = old_boost_score;
+            break;
+        }
+
+        /* Break out conditions. */
+        if  (
+            /* Break at cpi->max_gf_interval unless almost totally static */
+            (i >= cpi->max_gf_interval && (decay_accumulator < 0.995)) ||
+            (
+                /* Dont break out with a very short interval */
+                (i > MIN_GF_INTERVAL) &&
+                /* Dont break out very close to a key frame */
+                ((cpi->twopass.frames_to_key - i) >= MIN_GF_INTERVAL) &&
+                ((boost_score > 20.0) || (next_frame.pcnt_inter < 0.75)) &&
+                (!flash_detected) &&
+                ((mv_ratio_accumulator > 100.0) ||
+                 (abs_mv_in_out_accumulator > 3.0) ||
+                 (mv_in_out_accumulator < -2.0) ||
+                 ((boost_score - old_boost_score) < 2.0))
+            ) )
+        {
+            boost_score = old_boost_score;
+            break;
+        }
+
+        memcpy(this_frame, &next_frame, sizeof(*this_frame));
+
+        old_boost_score = boost_score;
+    }
+
+    cpi->twopass.gf_decay_rate =
+        (i > 0) ? (int)(100.0 * (1.0 - decay_accumulator)) / i : 0;
+
+    /* When using CBR apply additional buffer related upper limits */
+    if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+    {
+        double max_boost;
+
+        /* For cbr apply buffer related limits */
+        if (cpi->drop_frames_allowed)
+        {
+            int64_t df_buffer_level = cpi->oxcf.drop_frames_water_mark *
+                                  (cpi->oxcf.optimal_buffer_level / 100);
+
+            if (cpi->buffer_level > df_buffer_level)
+                max_boost = ((double)((cpi->buffer_level - df_buffer_level) * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
+            else
+                max_boost = 0.0;
+        }
+        else if (cpi->buffer_level > 0)
+        {
+            max_boost = ((double)(cpi->buffer_level * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
+        }
+        else
+        {
+            max_boost = 0.0;
+        }
+
+        if (boost_score > max_boost)
+            boost_score = max_boost;
+    }
+
+    /* Dont allow conventional gf too near the next kf */
+    if ((cpi->twopass.frames_to_key - i) < MIN_GF_INTERVAL)
+    {
+        while (i < cpi->twopass.frames_to_key)
+        {
+            i++;
+
+            if (EOF == input_stats(cpi, this_frame))
+                break;
+
+            if (i < cpi->twopass.frames_to_key)
+            {
+                mod_frame_err = calculate_modified_err(cpi, this_frame);
+                gf_group_err += mod_frame_err;
+            }
+        }
+    }
+
+    cpi->gfu_boost = (int)(boost_score * 100.0) >> 4;
+
+#if NEW_BOOST
+    /* Alterrnative boost calculation for alt ref */
+    alt_boost = calc_arf_boost( cpi, 0, (i-1), (i-1), &f_boost, &b_boost );
+#endif
+
+    /* Should we use the alternate refernce frame */
+    if (allow_alt_ref &&
+        (i >= MIN_GF_INTERVAL) &&
+        /* dont use ARF very near next kf */
+        (i <= (cpi->twopass.frames_to_key - MIN_GF_INTERVAL)) &&
+#if NEW_BOOST
+        ((next_frame.pcnt_inter > 0.75) ||
+         (next_frame.pcnt_second_ref > 0.5)) &&
+        ((mv_in_out_accumulator / (double)i > -0.2) ||
+         (mv_in_out_accumulator > -2.0)) &&
+        (b_boost > 100) &&
+        (f_boost > 100) )
+#else
+        (next_frame.pcnt_inter > 0.75) &&
+        ((mv_in_out_accumulator / (double)i > -0.2) ||
+         (mv_in_out_accumulator > -2.0)) &&
+        (cpi->gfu_boost > 100) &&
+        (cpi->twopass.gf_decay_rate <=
+            (ARF_DECAY_THRESH + (cpi->gfu_boost / 200))) )
+#endif
+    {
+        int Boost;
+        int allocation_chunks;
+        int Q = (cpi->oxcf.fixed_q < 0)
+                ? cpi->last_q[INTER_FRAME] : cpi->oxcf.fixed_q;
+        int tmp_q;
+        int arf_frame_bits = 0;
+        int group_bits;
+
+#if NEW_BOOST
+        cpi->gfu_boost = alt_boost;
+#endif
+
+        /* Estimate the bits to be allocated to the group as a whole */
+        if ((cpi->twopass.kf_group_bits > 0) &&
+            (cpi->twopass.kf_group_error_left > 0))
+        {
+            group_bits = (int)((double)cpi->twopass.kf_group_bits *
+                (gf_group_err / (double)cpi->twopass.kf_group_error_left));
+        }
+        else
+            group_bits = 0;
+
+        /* Boost for arf frame */
+#if NEW_BOOST
+        Boost = (alt_boost * GFQ_ADJUSTMENT) / 100;
+#else
+        Boost = (cpi->gfu_boost * 3 * GFQ_ADJUSTMENT) / (2 * 100);
+#endif
+        Boost += (i * 50);
+
+        /* Set max and minimum boost and hence minimum allocation */
+        if (Boost > ((cpi->baseline_gf_interval + 1) * 200))
+            Boost = ((cpi->baseline_gf_interval + 1) * 200);
+        else if (Boost < 125)
+            Boost = 125;
+
+        allocation_chunks = (i * 100) + Boost;
+
+        /* Normalize Altboost and allocations chunck down to prevent overflow */
+        while (Boost > 1000)
+        {
+            Boost /= 2;
+            allocation_chunks /= 2;
+        }
+
+        /* Calculate the number of bits to be spent on the arf based on the
+         * boost number
+         */
+        arf_frame_bits = (int)((double)Boost * (group_bits /
+                               (double)allocation_chunks));
+
+        /* Estimate if there are enough bits available to make worthwhile use
+         * of an arf.
+         */
+        tmp_q = estimate_q(cpi, mod_frame_err, (int)arf_frame_bits);
+
+        /* Only use an arf if it is likely we will be able to code
+         * it at a lower Q than the surrounding frames.
+         */
+        if (tmp_q < cpi->worst_quality)
+        {
+            int half_gf_int;
+            int frames_after_arf;
+            int frames_bwd = cpi->oxcf.arnr_max_frames - 1;
+            int frames_fwd = cpi->oxcf.arnr_max_frames - 1;
+
+            cpi->source_alt_ref_pending = 1;
+
+            /*
+             * For alt ref frames the error score for the end frame of the
+             * group (the alt ref frame) should not contribute to the group
+             * total and hence the number of bit allocated to the group.
+             * Rather it forms part of the next group (it is the GF at the
+             * start of the next group)
+             * gf_group_err -= mod_frame_err;
+             *
+             * For alt ref frames alt ref frame is technically part of the
+             * GF frame for the next group but we always base the error
+             * calculation and bit allocation on the current group of frames.
+             *
+             * Set the interval till the next gf or arf.
+             * For ARFs this is the number of frames to be coded before the
+             * future frame that is coded as an ARF.
+             * The future frame itself is part of the next group
+             */
+            cpi->baseline_gf_interval = i;
+
+            /*
+             * Define the arnr filter width for this group of frames:
+             * We only filter frames that lie within a distance of half
+             * the GF interval from the ARF frame. We also have to trap
+             * cases where the filter extends beyond the end of clip.
+             * Note: this_frame->frame has been updated in the loop
+             * so it now points at the ARF frame.
+             */
+            half_gf_int = cpi->baseline_gf_interval >> 1;
+            frames_after_arf = (int)(cpi->twopass.total_stats.count -
+                               this_frame->frame - 1);
+
+            switch (cpi->oxcf.arnr_type)
+            {
+            case 1: /* Backward filter */
+                frames_fwd = 0;
+                if (frames_bwd > half_gf_int)
+                    frames_bwd = half_gf_int;
+                break;
+
+            case 2: /* Forward filter */
+                if (frames_fwd > half_gf_int)
+                    frames_fwd = half_gf_int;
+                if (frames_fwd > frames_after_arf)
+                    frames_fwd = frames_after_arf;
+                frames_bwd = 0;
+                break;
+
+            case 3: /* Centered filter */
+            default:
+                frames_fwd >>= 1;
+                if (frames_fwd > frames_after_arf)
+                    frames_fwd = frames_after_arf;
+                if (frames_fwd > half_gf_int)
+                    frames_fwd = half_gf_int;
+
+                frames_bwd = frames_fwd;
+
+                /* For even length filter there is one more frame backward
+                 * than forward: e.g. len=6 ==> bbbAff, len=7 ==> bbbAfff.
+                 */
+                if (frames_bwd < half_gf_int)
+                    frames_bwd += (cpi->oxcf.arnr_max_frames+1) & 0x1;
+                break;
+            }
+
+            cpi->active_arnr_frames = frames_bwd + 1 + frames_fwd;
+        }
+        else
+        {
+            cpi->source_alt_ref_pending = 0;
+            cpi->baseline_gf_interval = i;
+        }
+    }
+    else
+    {
+        cpi->source_alt_ref_pending = 0;
+        cpi->baseline_gf_interval = i;
+    }
+
+    /*
+     * Now decide how many bits should be allocated to the GF group as  a
+     * proportion of those remaining in the kf group.
+     * The final key frame group in the clip is treated as a special case
+     * where cpi->twopass.kf_group_bits is tied to cpi->twopass.bits_left.
+     * This is also important for short clips where there may only be one
+     * key frame.
+     */
+    if (cpi->twopass.frames_to_key >= (int)(cpi->twopass.total_stats.count -
+                                            cpi->common.current_video_frame))
+    {
+        cpi->twopass.kf_group_bits =
+            (cpi->twopass.bits_left > 0) ? cpi->twopass.bits_left : 0;
+    }
+
+    /* Calculate the bits to be allocated to the group as a whole */
+    if ((cpi->twopass.kf_group_bits > 0) &&
+        (cpi->twopass.kf_group_error_left > 0))
+    {
+        cpi->twopass.gf_group_bits =
+            (int64_t)(cpi->twopass.kf_group_bits *
+                      (gf_group_err / cpi->twopass.kf_group_error_left));
+    }
+    else
+        cpi->twopass.gf_group_bits = 0;
+
+    cpi->twopass.gf_group_bits =
+        (cpi->twopass.gf_group_bits < 0)
+            ? 0
+            : (cpi->twopass.gf_group_bits > cpi->twopass.kf_group_bits)
+                ? cpi->twopass.kf_group_bits : cpi->twopass.gf_group_bits;
+
+    /* Clip cpi->twopass.gf_group_bits based on user supplied data rate
+     * variability limit (cpi->oxcf.two_pass_vbrmax_section)
+     */
+    if (cpi->twopass.gf_group_bits >
+        (int64_t)max_bits * cpi->baseline_gf_interval)
+        cpi->twopass.gf_group_bits =
+            (int64_t)max_bits * cpi->baseline_gf_interval;
+
+    /* Reset the file position */
+    reset_fpf_position(cpi, start_pos);
+
+    /* Update the record of error used so far (only done once per gf group) */
+    cpi->twopass.modified_error_used += gf_group_err;
+
+    /* Assign  bits to the arf or gf. */
+    for (i = 0; i <= (cpi->source_alt_ref_pending && cpi->common.frame_type != KEY_FRAME); i++) {
+        int Boost;
+        int allocation_chunks;
+        int Q = (cpi->oxcf.fixed_q < 0) ? cpi->last_q[INTER_FRAME] : cpi->oxcf.fixed_q;
+        int gf_bits;
+
+        /* For ARF frames */
+        if (cpi->source_alt_ref_pending && i == 0)
+        {
+#if NEW_BOOST
+            Boost = (alt_boost * GFQ_ADJUSTMENT) / 100;
+#else
+            Boost = (cpi->gfu_boost * 3 * GFQ_ADJUSTMENT) / (2 * 100);
+#endif
+            Boost += (cpi->baseline_gf_interval * 50);
+
+            /* Set max and minimum boost and hence minimum allocation */
+            if (Boost > ((cpi->baseline_gf_interval + 1) * 200))
+                Boost = ((cpi->baseline_gf_interval + 1) * 200);
+            else if (Boost < 125)
+                Boost = 125;
+
+            allocation_chunks =
+                ((cpi->baseline_gf_interval + 1) * 100) + Boost;
+        }
+        /* Else for standard golden frames */
+        else
+        {
+            /* boost based on inter / intra ratio of subsequent frames */
+            Boost = (cpi->gfu_boost * GFQ_ADJUSTMENT) / 100;
+
+            /* Set max and minimum boost and hence minimum allocation */
+            if (Boost > (cpi->baseline_gf_interval * 150))
+                Boost = (cpi->baseline_gf_interval * 150);
+            else if (Boost < 125)
+                Boost = 125;
+
+            allocation_chunks =
+                (cpi->baseline_gf_interval * 100) + (Boost - 100);
+        }
+
+        /* Normalize Altboost and allocations chunck down to prevent overflow */
+        while (Boost > 1000)
+        {
+            Boost /= 2;
+            allocation_chunks /= 2;
+        }
+
+        /* Calculate the number of bits to be spent on the gf or arf based on
+         * the boost number
+         */
+        gf_bits = (int)((double)Boost *
+                        (cpi->twopass.gf_group_bits /
+                         (double)allocation_chunks));
+
+        /* If the frame that is to be boosted is simpler than the average for
+         * the gf/arf group then use an alternative calculation
+         * based on the error score of the frame itself
+         */
+        if (mod_frame_err < gf_group_err / (double)cpi->baseline_gf_interval)
+        {
+            double  alt_gf_grp_bits;
+            int     alt_gf_bits;
+
+            alt_gf_grp_bits =
+                (double)cpi->twopass.kf_group_bits  *
+                (mod_frame_err * (double)cpi->baseline_gf_interval) /
+                DOUBLE_DIVIDE_CHECK((double)cpi->twopass.kf_group_error_left);
+
+            alt_gf_bits = (int)((double)Boost * (alt_gf_grp_bits /
+                                                 (double)allocation_chunks));
+
+            if (gf_bits > alt_gf_bits)
+            {
+                gf_bits = alt_gf_bits;
+            }
+        }
+        /* Else if it is harder than other frames in the group make sure it at
+         * least receives an allocation in keeping with its relative error
+         * score, otherwise it may be worse off than an "un-boosted" frame
+         */
+        else
+        {
+            int alt_gf_bits =
+                (int)((double)cpi->twopass.kf_group_bits *
+                      mod_frame_err /
+                      DOUBLE_DIVIDE_CHECK((double)cpi->twopass.kf_group_error_left));
+
+            if (alt_gf_bits > gf_bits)
+            {
+                gf_bits = alt_gf_bits;
+            }
+        }
+
+        /* Apply an additional limit for CBR */
+        if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+        {
+            if (cpi->twopass.gf_bits > (int)(cpi->buffer_level >> 1))
+                cpi->twopass.gf_bits = (int)(cpi->buffer_level >> 1);
+        }
+
+        /* Dont allow a negative value for gf_bits */
+        if (gf_bits < 0)
+            gf_bits = 0;
+
+        /* Add in minimum for a frame */
+        gf_bits += cpi->min_frame_bandwidth;
+
+        if (i == 0)
+        {
+            cpi->twopass.gf_bits = gf_bits;
+        }
+        if (i == 1 || (!cpi->source_alt_ref_pending && (cpi->common.frame_type != KEY_FRAME)))
+        {
+            /* Per frame bit target for this frame */
+            cpi->per_frame_bandwidth = gf_bits;
+        }
+    }
+
+    {
+        /* Adjust KF group bits and error remainin */
+        cpi->twopass.kf_group_error_left -= (int64_t)gf_group_err;
+        cpi->twopass.kf_group_bits -= cpi->twopass.gf_group_bits;
+
+        if (cpi->twopass.kf_group_bits < 0)
+            cpi->twopass.kf_group_bits = 0;
+
+        /* Note the error score left in the remaining frames of the group.
+         * For normal GFs we want to remove the error score for the first
+         * frame of the group (except in Key frame case where this has
+         * already happened)
+         */
+        if (!cpi->source_alt_ref_pending && cpi->common.frame_type != KEY_FRAME)
+            cpi->twopass.gf_group_error_left = (int)(gf_group_err -
+                                                     gf_first_frame_err);
+        else
+            cpi->twopass.gf_group_error_left = (int) gf_group_err;
+
+        cpi->twopass.gf_group_bits -= cpi->twopass.gf_bits - cpi->min_frame_bandwidth;
+
+        if (cpi->twopass.gf_group_bits < 0)
+            cpi->twopass.gf_group_bits = 0;
+
+        /* This condition could fail if there are two kfs very close together
+         * despite (MIN_GF_INTERVAL) and would cause a devide by 0 in the
+         * calculation of cpi->twopass.alt_extra_bits.
+         */
+        if ( cpi->baseline_gf_interval >= 3 )
+        {
+#if NEW_BOOST
+            int boost = (cpi->source_alt_ref_pending)
+                        ? b_boost : cpi->gfu_boost;
+#else
+            int boost = cpi->gfu_boost;
+#endif
+            if ( boost >= 150 )
+            {
+                int pct_extra;
+
+                pct_extra = (boost - 100) / 50;
+                pct_extra = (pct_extra > 20) ? 20 : pct_extra;
+
+                cpi->twopass.alt_extra_bits =
+                    (int)(cpi->twopass.gf_group_bits * pct_extra) / 100;
+                cpi->twopass.gf_group_bits -= cpi->twopass.alt_extra_bits;
+                cpi->twopass.alt_extra_bits /=
+                    ((cpi->baseline_gf_interval-1)>>1);
+            }
+            else
+                cpi->twopass.alt_extra_bits = 0;
+        }
+        else
+            cpi->twopass.alt_extra_bits = 0;
+    }
+
+    /* Adjustments based on a measure of complexity of the section */
+    if (cpi->common.frame_type != KEY_FRAME)
+    {
+        FIRSTPASS_STATS sectionstats;
+        double Ratio;
+
+        zero_stats(&sectionstats);
+        reset_fpf_position(cpi, start_pos);
+
+        for (i = 0 ; i < cpi->baseline_gf_interval ; i++)
+        {
+            input_stats(cpi, &next_frame);
+            accumulate_stats(&sectionstats, &next_frame);
+        }
+
+        avg_stats(&sectionstats);
+
+        cpi->twopass.section_intra_rating = (unsigned int)
+            (sectionstats.intra_error /
+            DOUBLE_DIVIDE_CHECK(sectionstats.coded_error));
+
+        Ratio = sectionstats.intra_error / DOUBLE_DIVIDE_CHECK(sectionstats.coded_error);
+        cpi->twopass.section_max_qfactor = 1.0 - ((Ratio - 10.0) * 0.025);
+
+        if (cpi->twopass.section_max_qfactor < 0.80)
+            cpi->twopass.section_max_qfactor = 0.80;
+
+        reset_fpf_position(cpi, start_pos);
+    }
+}
+
+/* Allocate bits to a normal frame that is neither a gf an arf or a key frame. */
+static void assign_std_frame_bits(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame)
+{
+    int    target_frame_size;
+
+    double modified_err;
+    double err_fraction;
+
+    int max_bits = frame_max_bits(cpi);  /* Max for a single frame */
+
+    /* Calculate modified prediction error used in bit allocation */
+    modified_err = calculate_modified_err(cpi, this_frame);
+
+    /* What portion of the remaining GF group error is used by this frame */
+    if (cpi->twopass.gf_group_error_left > 0)
+        err_fraction = modified_err / cpi->twopass.gf_group_error_left;
+    else
+        err_fraction = 0.0;
+
+    /* How many of those bits available for allocation should we give it? */
+    target_frame_size = (int)((double)cpi->twopass.gf_group_bits * err_fraction);
+
+    /* Clip to target size to 0 - max_bits (or cpi->twopass.gf_group_bits)
+     * at the top end.
+     */
+    if (target_frame_size < 0)
+        target_frame_size = 0;
+    else
+    {
+        if (target_frame_size > max_bits)
+            target_frame_size = max_bits;
+
+        if (target_frame_size > cpi->twopass.gf_group_bits)
+            target_frame_size = (int)cpi->twopass.gf_group_bits;
+    }
+
+    /* Adjust error and bits remaining */
+    cpi->twopass.gf_group_error_left -= (int)modified_err;
+    cpi->twopass.gf_group_bits -= target_frame_size;
+
+    if (cpi->twopass.gf_group_bits < 0)
+        cpi->twopass.gf_group_bits = 0;
+
+    /* Add in the minimum number of bits that is set aside for every frame. */
+    target_frame_size += cpi->min_frame_bandwidth;
+
+    /* Every other frame gets a few extra bits */
+    if ( (cpi->frames_since_golden & 0x01) &&
+         (cpi->frames_till_gf_update_due > 0) )
+    {
+        target_frame_size += cpi->twopass.alt_extra_bits;
+    }
+
+    /* Per frame bit target for this frame */
+    cpi->per_frame_bandwidth = target_frame_size;
+}
+
+void vp8_second_pass(VP8_COMP *cpi)
+{
+    int tmp_q;
+    int frames_left = (int)(cpi->twopass.total_stats.count - cpi->common.current_video_frame);
+
+    FIRSTPASS_STATS this_frame = {0};
+    FIRSTPASS_STATS this_frame_copy;
+
+    double this_frame_intra_error;
+    double this_frame_coded_error;
+
+    int overhead_bits;
+
+    if (!cpi->twopass.stats_in)
+    {
+        return ;
+    }
+
+    vp8_clear_system_state();
+
+    if (EOF == input_stats(cpi, &this_frame))
+        return;
+
+    this_frame_intra_error = this_frame.intra_error;
+    this_frame_coded_error = this_frame.coded_error;
+
+    /* keyframe and section processing ! */
+    if (cpi->twopass.frames_to_key == 0)
+    {
+        /* Define next KF group and assign bits to it */
+        memcpy(&this_frame_copy, &this_frame, sizeof(this_frame));
+        find_next_key_frame(cpi, &this_frame_copy);
+
+        /* Special case: Error error_resilient_mode mode does not make much
+         * sense for two pass but with its current meaning this code is
+         * designed to stop outlandish behaviour if someone does set it when
+         * using two pass. It effectively disables GF groups. This is
+         * temporary code until we decide what should really happen in this
+         * case.
+         */
+        if (cpi->oxcf.error_resilient_mode)
+        {
+            cpi->twopass.gf_group_bits = cpi->twopass.kf_group_bits;
+            cpi->twopass.gf_group_error_left =
+                                  (int)cpi->twopass.kf_group_error_left;
+            cpi->baseline_gf_interval = cpi->twopass.frames_to_key;
+            cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+            cpi->source_alt_ref_pending = 0;
+        }
+
+    }
+
+    /* Is this a GF / ARF (Note that a KF is always also a GF) */
+    if (cpi->frames_till_gf_update_due == 0)
+    {
+        /* Define next gf group and assign bits to it */
+        memcpy(&this_frame_copy, &this_frame, sizeof(this_frame));
+        define_gf_group(cpi, &this_frame_copy);
+
+        /* If we are going to code an altref frame at the end of the group
+         * and the current frame is not a key frame.... If the previous
+         * group used an arf this frame has already benefited from that arf
+         * boost and it should not be given extra bits If the previous
+         * group was NOT coded using arf we may want to apply some boost to
+         * this GF as well
+         */
+        if (cpi->source_alt_ref_pending && (cpi->common.frame_type != KEY_FRAME))
+        {
+            /* Assign a standard frames worth of bits from those allocated
+             * to the GF group
+             */
+            int bak = cpi->per_frame_bandwidth;
+            memcpy(&this_frame_copy, &this_frame, sizeof(this_frame));
+            assign_std_frame_bits(cpi, &this_frame_copy);
+            cpi->per_frame_bandwidth = bak;
+        }
+    }
+
+    /* Otherwise this is an ordinary frame */
+    else
+    {
+        /* Special case: Error error_resilient_mode mode does not make much
+         * sense for two pass but with its current meaning but this code is
+         * designed to stop outlandish behaviour if someone does set it
+         * when using two pass. It effectively disables GF groups. This is
+         * temporary code till we decide what should really happen in this
+         * case.
+         */
+        if (cpi->oxcf.error_resilient_mode)
+        {
+            cpi->frames_till_gf_update_due = cpi->twopass.frames_to_key;
+
+            if (cpi->common.frame_type != KEY_FRAME)
+            {
+                /* Assign bits from those allocated to the GF group */
+                memcpy(&this_frame_copy, &this_frame, sizeof(this_frame));
+                assign_std_frame_bits(cpi, &this_frame_copy);
+            }
+        }
+        else
+        {
+            /* Assign bits from those allocated to the GF group */
+            memcpy(&this_frame_copy, &this_frame, sizeof(this_frame));
+            assign_std_frame_bits(cpi, &this_frame_copy);
+        }
+    }
+
+    /* Keep a globally available copy of this and the next frame's iiratio. */
+    cpi->twopass.this_iiratio = (unsigned int)(this_frame_intra_error /
+                        DOUBLE_DIVIDE_CHECK(this_frame_coded_error));
+    {
+        FIRSTPASS_STATS next_frame;
+        if ( lookup_next_frame_stats(cpi, &next_frame) != EOF )
+        {
+            cpi->twopass.next_iiratio = (unsigned int)(next_frame.intra_error /
+                                DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
+        }
+    }
+
+    /* Set nominal per second bandwidth for this frame */
+    cpi->target_bandwidth = (int)
+    (cpi->per_frame_bandwidth * cpi->output_framerate);
+    if (cpi->target_bandwidth < 0)
+        cpi->target_bandwidth = 0;
+
+
+    /* Account for mv, mode and other overheads. */
+    overhead_bits = (int)estimate_modemvcost(
+                        cpi, &cpi->twopass.total_left_stats );
+
+    /* Special case code for first frame. */
+    if (cpi->common.current_video_frame == 0)
+    {
+        cpi->twopass.est_max_qcorrection_factor = 1.0;
+
+        /* Set a cq_level in constrained quality mode. */
+        if ( cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY )
+        {
+            int est_cq;
+
+            est_cq =
+                estimate_cq( cpi,
+                             &cpi->twopass.total_left_stats,
+                             (int)(cpi->twopass.bits_left / frames_left),
+                             overhead_bits );
+
+            cpi->cq_target_quality = cpi->oxcf.cq_level;
+            if ( est_cq > cpi->cq_target_quality )
+                cpi->cq_target_quality = est_cq;
+        }
+
+        /* guess at maxq needed in 2nd pass */
+        cpi->twopass.maxq_max_limit = cpi->worst_quality;
+        cpi->twopass.maxq_min_limit = cpi->best_quality;
+
+        tmp_q = estimate_max_q(
+                    cpi,
+                    &cpi->twopass.total_left_stats,
+                    (int)(cpi->twopass.bits_left / frames_left),
+                    overhead_bits );
+
+        /* Limit the maxq value returned subsequently.
+         * This increases the risk of overspend or underspend if the initial
+         * estimate for the clip is bad, but helps prevent excessive
+         * variation in Q, especially near the end of a clip
+         * where for example a small overspend may cause Q to crash
+         */
+        cpi->twopass.maxq_max_limit = ((tmp_q + 32) < cpi->worst_quality)
+                                  ? (tmp_q + 32) : cpi->worst_quality;
+        cpi->twopass.maxq_min_limit = ((tmp_q - 32) > cpi->best_quality)
+                                  ? (tmp_q - 32) : cpi->best_quality;
+
+        cpi->active_worst_quality         = tmp_q;
+        cpi->ni_av_qi                     = tmp_q;
+    }
+
+    /* The last few frames of a clip almost always have to few or too many
+     * bits and for the sake of over exact rate control we dont want to make
+     * radical adjustments to the allowed quantizer range just to use up a
+     * few surplus bits or get beneath the target rate.
+     */
+    else if ( (cpi->common.current_video_frame <
+                 (((unsigned int)cpi->twopass.total_stats.count * 255)>>8)) &&
+              ((cpi->common.current_video_frame + cpi->baseline_gf_interval) <
+                 (unsigned int)cpi->twopass.total_stats.count) )
+    {
+        if (frames_left < 1)
+            frames_left = 1;
+
+        tmp_q = estimate_max_q(
+                    cpi,
+                    &cpi->twopass.total_left_stats,
+                    (int)(cpi->twopass.bits_left / frames_left),
+                    overhead_bits );
+
+        /* Move active_worst_quality but in a damped way */
+        if (tmp_q > cpi->active_worst_quality)
+            cpi->active_worst_quality ++;
+        else if (tmp_q < cpi->active_worst_quality)
+            cpi->active_worst_quality --;
+
+        cpi->active_worst_quality =
+            ((cpi->active_worst_quality * 3) + tmp_q + 2) / 4;
+    }
+
+    cpi->twopass.frames_to_key --;
+
+    /* Update the total stats remaining sturcture */
+    subtract_stats(&cpi->twopass.total_left_stats, &this_frame );
+}
+
+
+static int test_candidate_kf(VP8_COMP *cpi,  FIRSTPASS_STATS *last_frame, FIRSTPASS_STATS *this_frame, FIRSTPASS_STATS *next_frame)
+{
+    int is_viable_kf = 0;
+
+    /* Does the frame satisfy the primary criteria of a key frame
+     *      If so, then examine how well it predicts subsequent frames
+     */
+    if ((this_frame->pcnt_second_ref < 0.10) &&
+        (next_frame->pcnt_second_ref < 0.10) &&
+        ((this_frame->pcnt_inter < 0.05) ||
+         (
+             ((this_frame->pcnt_inter - this_frame->pcnt_neutral) < .25) &&
+             ((this_frame->intra_error / DOUBLE_DIVIDE_CHECK(this_frame->coded_error)) < 2.5) &&
+             ((fabs(last_frame->coded_error - this_frame->coded_error) / DOUBLE_DIVIDE_CHECK(this_frame->coded_error) > .40) ||
+              (fabs(last_frame->intra_error - this_frame->intra_error) / DOUBLE_DIVIDE_CHECK(this_frame->intra_error) > .40) ||
+              ((next_frame->intra_error / DOUBLE_DIVIDE_CHECK(next_frame->coded_error)) > 3.5)
+             )
+         )
+        )
+       )
+    {
+        int i;
+        FIRSTPASS_STATS *start_pos;
+
+        FIRSTPASS_STATS local_next_frame;
+
+        double boost_score = 0.0;
+        double old_boost_score = 0.0;
+        double decay_accumulator = 1.0;
+        double next_iiratio;
+
+        memcpy(&local_next_frame, next_frame, sizeof(*next_frame));
+
+        /* Note the starting file position so we can reset to it */
+        start_pos = cpi->twopass.stats_in;
+
+        /* Examine how well the key frame predicts subsequent frames */
+        for (i = 0 ; i < 16; i++)
+        {
+            next_iiratio = (IIKFACTOR1 * local_next_frame.intra_error / DOUBLE_DIVIDE_CHECK(local_next_frame.coded_error)) ;
+
+            if (next_iiratio > RMAX)
+                next_iiratio = RMAX;
+
+            /* Cumulative effect of decay in prediction quality */
+            if (local_next_frame.pcnt_inter > 0.85)
+                decay_accumulator = decay_accumulator * local_next_frame.pcnt_inter;
+            else
+                decay_accumulator = decay_accumulator * ((0.85 + local_next_frame.pcnt_inter) / 2.0);
+
+            /* Keep a running total */
+            boost_score += (decay_accumulator * next_iiratio);
+
+            /* Test various breakout clauses */
+            if ((local_next_frame.pcnt_inter < 0.05) ||
+                (next_iiratio < 1.5) ||
+                (((local_next_frame.pcnt_inter -
+                   local_next_frame.pcnt_neutral) < 0.20) &&
+                 (next_iiratio < 3.0)) ||
+                ((boost_score - old_boost_score) < 0.5) ||
+                (local_next_frame.intra_error < 200)
+               )
+            {
+                break;
+            }
+
+            old_boost_score = boost_score;
+
+            /* Get the next frame details */
+            if (EOF == input_stats(cpi, &local_next_frame))
+                break;
+        }
+
+        /* If there is tolerable prediction for at least the next 3 frames
+         * then break out else discard this pottential key frame and move on
+         */
+        if (boost_score > 5.0 && (i > 3))
+            is_viable_kf = 1;
+        else
+        {
+            /* Reset the file position */
+            reset_fpf_position(cpi, start_pos);
+
+            is_viable_kf = 0;
+        }
+    }
+
+    return is_viable_kf;
+}
+static void find_next_key_frame(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame)
+{
+    int i,j;
+    FIRSTPASS_STATS last_frame;
+    FIRSTPASS_STATS first_frame;
+    FIRSTPASS_STATS next_frame;
+    FIRSTPASS_STATS *start_position;
+
+    double decay_accumulator = 1.0;
+    double boost_score = 0;
+    double old_boost_score = 0.0;
+    double loop_decay_rate;
+
+    double kf_mod_err = 0.0;
+    double kf_group_err = 0.0;
+    double kf_group_intra_err = 0.0;
+    double kf_group_coded_err = 0.0;
+    double recent_loop_decay[8] = {1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0};
+
+    memset(&next_frame, 0, sizeof(next_frame));
+
+    vp8_clear_system_state();
+    start_position = cpi->twopass.stats_in;
+
+    cpi->common.frame_type = KEY_FRAME;
+
+    /* is this a forced key frame by interval */
+    cpi->this_key_frame_forced = cpi->next_key_frame_forced;
+
+    /* Clear the alt ref active flag as this can never be active on a key
+     * frame
+     */
+    cpi->source_alt_ref_active = 0;
+
+    /* Kf is always a gf so clear frames till next gf counter */
+    cpi->frames_till_gf_update_due = 0;
+
+    cpi->twopass.frames_to_key = 1;
+
+    /* Take a copy of the initial frame details */
+    memcpy(&first_frame, this_frame, sizeof(*this_frame));
+
+    cpi->twopass.kf_group_bits = 0;
+    cpi->twopass.kf_group_error_left = 0;
+
+    kf_mod_err = calculate_modified_err(cpi, this_frame);
+
+    /* find the next keyframe */
+    i = 0;
+    while (cpi->twopass.stats_in < cpi->twopass.stats_in_end)
+    {
+        /* Accumulate kf group error */
+        kf_group_err += calculate_modified_err(cpi, this_frame);
+
+        /* These figures keep intra and coded error counts for all frames
+         * including key frames in the group. The effect of the key frame
+         * itself can be subtracted out using the first_frame data
+         * collected above
+         */
+        kf_group_intra_err += this_frame->intra_error;
+        kf_group_coded_err += this_frame->coded_error;
+
+        /* Load the next frame's stats. */
+        memcpy(&last_frame, this_frame, sizeof(*this_frame));
+        input_stats(cpi, this_frame);
+
+        /* Provided that we are not at the end of the file... */
+        if (cpi->oxcf.auto_key
+            && lookup_next_frame_stats(cpi, &next_frame) != EOF)
+        {
+            /* Normal scene cut check */
+            if ( ( i >= MIN_GF_INTERVAL ) &&
+                 test_candidate_kf(cpi, &last_frame, this_frame, &next_frame) )
+            {
+                break;
+            }
+
+            /* How fast is prediction quality decaying */
+            loop_decay_rate = get_prediction_decay_rate(cpi, &next_frame);
+
+            /* We want to know something about the recent past... rather than
+             * as used elsewhere where we are concened with decay in prediction
+             * quality since the last GF or KF.
+             */
+            recent_loop_decay[i%8] = loop_decay_rate;
+            decay_accumulator = 1.0;
+            for (j = 0; j < 8; j++)
+            {
+                decay_accumulator = decay_accumulator * recent_loop_decay[j];
+            }
+
+            /* Special check for transition or high motion followed by a
+             * static scene.
+             */
+            if ( detect_transition_to_still( cpi, i,
+                                             (cpi->key_frame_frequency-i),
+                                             loop_decay_rate,
+                                             decay_accumulator ) )
+            {
+                break;
+            }
+
+
+            /* Step on to the next frame */
+            cpi->twopass.frames_to_key ++;
+
+            /* If we don't have a real key frame within the next two
+             * forcekeyframeevery intervals then break out of the loop.
+             */
+            if (cpi->twopass.frames_to_key >= 2 *(int)cpi->key_frame_frequency)
+                break;
+        } else
+            cpi->twopass.frames_to_key ++;
+
+        i++;
+    }
+
+    /* If there is a max kf interval set by the user we must obey it.
+     * We already breakout of the loop above at 2x max.
+     * This code centers the extra kf if the actual natural
+     * interval is between 1x and 2x
+     */
+    if (cpi->oxcf.auto_key
+        && cpi->twopass.frames_to_key > (int)cpi->key_frame_frequency )
+    {
+        FIRSTPASS_STATS *current_pos = cpi->twopass.stats_in;
+        FIRSTPASS_STATS tmp_frame;
+
+        cpi->twopass.frames_to_key /= 2;
+
+        /* Copy first frame details */
+        memcpy(&tmp_frame, &first_frame, sizeof(first_frame));
+
+        /* Reset to the start of the group */
+        reset_fpf_position(cpi, start_position);
+
+        kf_group_err = 0;
+        kf_group_intra_err = 0;
+        kf_group_coded_err = 0;
+
+        /* Rescan to get the correct error data for the forced kf group */
+        for( i = 0; i < cpi->twopass.frames_to_key; i++ )
+        {
+            /* Accumulate kf group errors */
+            kf_group_err += calculate_modified_err(cpi, &tmp_frame);
+            kf_group_intra_err += tmp_frame.intra_error;
+            kf_group_coded_err += tmp_frame.coded_error;
+
+            /* Load a the next frame's stats */
+            input_stats(cpi, &tmp_frame);
+        }
+
+        /* Reset to the start of the group */
+        reset_fpf_position(cpi, current_pos);
+
+        cpi->next_key_frame_forced = 1;
+    }
+    else
+        cpi->next_key_frame_forced = 0;
+
+    /* Special case for the last frame of the file */
+    if (cpi->twopass.stats_in >= cpi->twopass.stats_in_end)
+    {
+        /* Accumulate kf group error */
+        kf_group_err += calculate_modified_err(cpi, this_frame);
+
+        /* These figures keep intra and coded error counts for all frames
+         * including key frames in the group. The effect of the key frame
+         * itself can be subtracted out using the first_frame data
+         * collected above
+         */
+        kf_group_intra_err += this_frame->intra_error;
+        kf_group_coded_err += this_frame->coded_error;
+    }
+
+    /* Calculate the number of bits that should be assigned to the kf group. */
+    if ((cpi->twopass.bits_left > 0) && (cpi->twopass.modified_error_left > 0.0))
+    {
+        /* Max for a single normal frame (not key frame) */
+        int max_bits = frame_max_bits(cpi);
+
+        /* Maximum bits for the kf group */
+        int64_t max_grp_bits;
+
+        /* Default allocation based on bits left and relative
+         * complexity of the section
+         */
+        cpi->twopass.kf_group_bits = (int64_t)( cpi->twopass.bits_left *
+                                          ( kf_group_err /
+                                            cpi->twopass.modified_error_left ));
+
+        /* Clip based on maximum per frame rate defined by the user. */
+        max_grp_bits = (int64_t)max_bits * (int64_t)cpi->twopass.frames_to_key;
+        if (cpi->twopass.kf_group_bits > max_grp_bits)
+            cpi->twopass.kf_group_bits = max_grp_bits;
+
+        /* Additional special case for CBR if buffer is getting full. */
+        if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+        {
+            int64_t opt_buffer_lvl = cpi->oxcf.optimal_buffer_level;
+            int64_t buffer_lvl = cpi->buffer_level;
+
+            /* If the buffer is near or above the optimal and this kf group is
+             * not being allocated much then increase the allocation a bit.
+             */
+            if (buffer_lvl >= opt_buffer_lvl)
+            {
+                int64_t high_water_mark = (opt_buffer_lvl +
+                                       cpi->oxcf.maximum_buffer_size) >> 1;
+
+                int64_t av_group_bits;
+
+                /* Av bits per frame * number of frames */
+                av_group_bits = (int64_t)cpi->av_per_frame_bandwidth *
+                                (int64_t)cpi->twopass.frames_to_key;
+
+                /* We are at or above the maximum. */
+                if (cpi->buffer_level >= high_water_mark)
+                {
+                    int64_t min_group_bits;
+
+                    min_group_bits = av_group_bits +
+                                     (int64_t)(buffer_lvl -
+                                                 high_water_mark);
+
+                    if (cpi->twopass.kf_group_bits < min_group_bits)
+                        cpi->twopass.kf_group_bits = min_group_bits;
+                }
+                /* We are above optimal but below the maximum */
+                else if (cpi->twopass.kf_group_bits < av_group_bits)
+                {
+                    int64_t bits_below_av = av_group_bits -
+                                              cpi->twopass.kf_group_bits;
+
+                    cpi->twopass.kf_group_bits +=
+                       (int64_t)((double)bits_below_av *
+                                   (double)(buffer_lvl - opt_buffer_lvl) /
+                                   (double)(high_water_mark - opt_buffer_lvl));
+                }
+            }
+        }
+    }
+    else
+        cpi->twopass.kf_group_bits = 0;
+
+    /* Reset the first pass file position */
+    reset_fpf_position(cpi, start_position);
+
+    /* determine how big to make this keyframe based on how well the
+     * subsequent frames use inter blocks
+     */
+    decay_accumulator = 1.0;
+    boost_score = 0.0;
+
+    for (i = 0 ; i < cpi->twopass.frames_to_key ; i++)
+    {
+        double r;
+
+        if (EOF == input_stats(cpi, &next_frame))
+            break;
+
+        if (next_frame.intra_error > cpi->twopass.kf_intra_err_min)
+            r = (IIKFACTOR2 * next_frame.intra_error /
+                     DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
+        else
+            r = (IIKFACTOR2 * cpi->twopass.kf_intra_err_min /
+                     DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
+
+        if (r > RMAX)
+            r = RMAX;
+
+        /* How fast is prediction quality decaying */
+        loop_decay_rate = get_prediction_decay_rate(cpi, &next_frame);
+
+        decay_accumulator = decay_accumulator * loop_decay_rate;
+        decay_accumulator = decay_accumulator < 0.1 ? 0.1 : decay_accumulator;
+
+        boost_score += (decay_accumulator * r);
+
+        if ((i > MIN_GF_INTERVAL) &&
+            ((boost_score - old_boost_score) < 1.0))
+        {
+            break;
+        }
+
+        old_boost_score = boost_score;
+    }
+
+    if (1)
+    {
+        FIRSTPASS_STATS sectionstats;
+        double Ratio;
+
+        zero_stats(&sectionstats);
+        reset_fpf_position(cpi, start_position);
+
+        for (i = 0 ; i < cpi->twopass.frames_to_key ; i++)
+        {
+            input_stats(cpi, &next_frame);
+            accumulate_stats(&sectionstats, &next_frame);
+        }
+
+        avg_stats(&sectionstats);
+
+        cpi->twopass.section_intra_rating = (unsigned int)
+            (sectionstats.intra_error
+            / DOUBLE_DIVIDE_CHECK(sectionstats.coded_error));
+
+        Ratio = sectionstats.intra_error / DOUBLE_DIVIDE_CHECK(sectionstats.coded_error);
+        cpi->twopass.section_max_qfactor = 1.0 - ((Ratio - 10.0) * 0.025);
+
+        if (cpi->twopass.section_max_qfactor < 0.80)
+            cpi->twopass.section_max_qfactor = 0.80;
+    }
+
+    /* When using CBR apply additional buffer fullness related upper limits */
+    if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+    {
+        double max_boost;
+
+        if (cpi->drop_frames_allowed)
+        {
+            int df_buffer_level = (int)(cpi->oxcf.drop_frames_water_mark
+                                  * (cpi->oxcf.optimal_buffer_level / 100));
+
+            if (cpi->buffer_level > df_buffer_level)
+                max_boost = ((double)((cpi->buffer_level - df_buffer_level) * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
+            else
+                max_boost = 0.0;
+        }
+        else if (cpi->buffer_level > 0)
+        {
+            max_boost = ((double)(cpi->buffer_level * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
+        }
+        else
+        {
+            max_boost = 0.0;
+        }
+
+        if (boost_score > max_boost)
+            boost_score = max_boost;
+    }
+
+    /* Reset the first pass file position */
+    reset_fpf_position(cpi, start_position);
+
+    /* Work out how many bits to allocate for the key frame itself */
+    if (1)
+    {
+        int kf_boost = (int)boost_score;
+        int allocation_chunks;
+        int Counter = cpi->twopass.frames_to_key;
+        int alt_kf_bits;
+        YV12_BUFFER_CONFIG *lst_yv12 = &cpi->common.yv12_fb[cpi->common.lst_fb_idx];
+        /* Min boost based on kf interval */
+#if 0
+
+        while ((kf_boost < 48) && (Counter > 0))
+        {
+            Counter -= 2;
+            kf_boost ++;
+        }
+
+#endif
+
+        if (kf_boost < 48)
+        {
+            kf_boost += ((Counter + 1) >> 1);
+
+            if (kf_boost > 48) kf_boost = 48;
+        }
+
+        /* bigger frame sizes need larger kf boosts, smaller frames smaller
+         * boosts...
+         */
+        if ((lst_yv12->y_width * lst_yv12->y_height) > (320 * 240))
+            kf_boost += 2 * (lst_yv12->y_width * lst_yv12->y_height) / (320 * 240);
+        else if ((lst_yv12->y_width * lst_yv12->y_height) < (320 * 240))
+            kf_boost -= 4 * (320 * 240) / (lst_yv12->y_width * lst_yv12->y_height);
+
+        /* Min KF boost */
+        kf_boost = (int)((double)kf_boost * 100.0) >> 4; /* Scale 16 to 100 */
+        if (kf_boost < 250)
+            kf_boost = 250;
+
+        /*
+         * We do three calculations for kf size.
+         * The first is based on the error score for the whole kf group.
+         * The second (optionaly) on the key frames own error if this is
+         * smaller than the average for the group.
+         * The final one insures that the frame receives at least the
+         * allocation it would have received based on its own error score vs
+         * the error score remaining
+         * Special case if the sequence appears almost totaly static
+         * as measured by the decay accumulator. In this case we want to
+         * spend almost all of the bits on the key frame.
+         * cpi->twopass.frames_to_key-1 because key frame itself is taken
+         * care of by kf_boost.
+         */
+        if ( decay_accumulator >= 0.99 )
+        {
+            allocation_chunks =
+                ((cpi->twopass.frames_to_key - 1) * 10) + kf_boost;
+        }
+        else
+        {
+            allocation_chunks =
+                ((cpi->twopass.frames_to_key - 1) * 100) + kf_boost;
+        }
+
+        /* Normalize Altboost and allocations chunck down to prevent overflow */
+        while (kf_boost > 1000)
+        {
+            kf_boost /= 2;
+            allocation_chunks /= 2;
+        }
+
+        cpi->twopass.kf_group_bits = (cpi->twopass.kf_group_bits < 0) ? 0 : cpi->twopass.kf_group_bits;
+
+        /* Calculate the number of bits to be spent on the key frame */
+        cpi->twopass.kf_bits  = (int)((double)kf_boost * ((double)cpi->twopass.kf_group_bits / (double)allocation_chunks));
+
+        /* Apply an additional limit for CBR */
+        if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+        {
+            if (cpi->twopass.kf_bits > (int)((3 * cpi->buffer_level) >> 2))
+                cpi->twopass.kf_bits = (int)((3 * cpi->buffer_level) >> 2);
+        }
+
+        /* If the key frame is actually easier than the average for the
+         * kf group (which does sometimes happen... eg a blank intro frame)
+         * Then use an alternate calculation based on the kf error score
+         * which should give a smaller key frame.
+         */
+        if (kf_mod_err < kf_group_err / cpi->twopass.frames_to_key)
+        {
+            double  alt_kf_grp_bits =
+                        ((double)cpi->twopass.bits_left *
+                         (kf_mod_err * (double)cpi->twopass.frames_to_key) /
+                         DOUBLE_DIVIDE_CHECK(cpi->twopass.modified_error_left));
+
+            alt_kf_bits = (int)((double)kf_boost *
+                                (alt_kf_grp_bits / (double)allocation_chunks));
+
+            if (cpi->twopass.kf_bits > alt_kf_bits)
+            {
+                cpi->twopass.kf_bits = alt_kf_bits;
+            }
+        }
+        /* Else if it is much harder than other frames in the group make sure
+         * it at least receives an allocation in keeping with its relative
+         * error score
+         */
+        else
+        {
+            alt_kf_bits =
+                (int)((double)cpi->twopass.bits_left *
+                      (kf_mod_err /
+                       DOUBLE_DIVIDE_CHECK(cpi->twopass.modified_error_left)));
+
+            if (alt_kf_bits > cpi->twopass.kf_bits)
+            {
+                cpi->twopass.kf_bits = alt_kf_bits;
+            }
+        }
+
+        cpi->twopass.kf_group_bits -= cpi->twopass.kf_bits;
+        /* Add in the minimum frame allowance */
+        cpi->twopass.kf_bits += cpi->min_frame_bandwidth;
+
+        /* Peer frame bit target for this frame */
+        cpi->per_frame_bandwidth = cpi->twopass.kf_bits;
+
+        /* Convert to a per second bitrate */
+        cpi->target_bandwidth = (int)(cpi->twopass.kf_bits *
+                                      cpi->output_framerate);
+    }
+
+    /* Note the total error score of the kf group minus the key frame itself */
+    cpi->twopass.kf_group_error_left = (int)(kf_group_err - kf_mod_err);
+
+    /* Adjust the count of total modified error left. The count of bits left
+     * is adjusted elsewhere based on real coded frame sizes
+     */
+    cpi->twopass.modified_error_left -= kf_group_err;
+
+    if (cpi->oxcf.allow_spatial_resampling)
+    {
+        int resample_trigger = 0;
+        int last_kf_resampled = 0;
+        int kf_q;
+        int scale_val = 0;
+        int hr, hs, vr, vs;
+        int new_width = cpi->oxcf.Width;
+        int new_height = cpi->oxcf.Height;
+
+        int projected_buffer_level;
+        int tmp_q;
+
+        double projected_bits_perframe;
+        double group_iiratio = (kf_group_intra_err - first_frame.intra_error) / (kf_group_coded_err - first_frame.coded_error);
+        double err_per_frame = kf_group_err / cpi->twopass.frames_to_key;
+        double bits_per_frame;
+        double av_bits_per_frame;
+        double effective_size_ratio;
+
+        if ((cpi->common.Width != cpi->oxcf.Width) || (cpi->common.Height != cpi->oxcf.Height))
+            last_kf_resampled = 1;
+
+        /* Set back to unscaled by defaults */
+        cpi->common.horiz_scale = NORMAL;
+        cpi->common.vert_scale = NORMAL;
+
+        /* Calculate Average bits per frame. */
+        av_bits_per_frame = cpi->oxcf.target_bandwidth / DOUBLE_DIVIDE_CHECK((double)cpi->framerate);
+
+        /* CBR... Use the clip average as the target for deciding resample */
+        if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+        {
+            bits_per_frame = av_bits_per_frame;
+        }
+
+        /* In VBR we want to avoid downsampling in easy section unless we
+         * are under extreme pressure So use the larger of target bitrate
+         * for this section or average bitrate for sequence
+         */
+        else
+        {
+            /* This accounts for how hard the section is... */
+            bits_per_frame = (double)
+                (cpi->twopass.kf_group_bits / cpi->twopass.frames_to_key);
+
+            /* Dont turn to resampling in easy sections just because they
+             * have been assigned a small number of bits
+             */
+            if (bits_per_frame < av_bits_per_frame)
+                bits_per_frame = av_bits_per_frame;
+        }
+
+        /* bits_per_frame should comply with our minimum */
+        if (bits_per_frame < (cpi->oxcf.target_bandwidth * cpi->oxcf.two_pass_vbrmin_section / 100))
+            bits_per_frame = (cpi->oxcf.target_bandwidth * cpi->oxcf.two_pass_vbrmin_section / 100);
+
+        /* Work out if spatial resampling is necessary */
+        kf_q = estimate_kf_group_q(cpi, err_per_frame,
+                                  (int)bits_per_frame, group_iiratio);
+
+        /* If we project a required Q higher than the maximum allowed Q then
+         * make a guess at the actual size of frames in this section
+         */
+        projected_bits_perframe = bits_per_frame;
+        tmp_q = kf_q;
+
+        while (tmp_q > cpi->worst_quality)
+        {
+            projected_bits_perframe *= 1.04;
+            tmp_q--;
+        }
+
+        /* Guess at buffer level at the end of the section */
+        projected_buffer_level = (int)
+                    (cpi->buffer_level - (int)
+                    ((projected_bits_perframe - av_bits_per_frame) *
+                    cpi->twopass.frames_to_key));
+
+        if (0)
+        {
+            FILE *f = fopen("Subsamle.stt", "a");
+            fprintf(f, " %8d %8d %8d %8d %12.0f %8d %8d %8d\n",  cpi->common.current_video_frame, kf_q, cpi->common.horiz_scale, cpi->common.vert_scale,  kf_group_err / cpi->twopass.frames_to_key, (int)(cpi->twopass.kf_group_bits / cpi->twopass.frames_to_key), new_height, new_width);
+            fclose(f);
+        }
+
+        /* The trigger for spatial resampling depends on the various
+         * parameters such as whether we are streaming (CBR) or VBR.
+         */
+        if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+        {
+            /* Trigger resample if we are projected to fall below down
+             * sample level or resampled last time and are projected to
+             * remain below the up sample level
+             */
+            if ((projected_buffer_level < (cpi->oxcf.resample_down_water_mark * cpi->oxcf.optimal_buffer_level / 100)) ||
+                (last_kf_resampled && (projected_buffer_level < (cpi->oxcf.resample_up_water_mark * cpi->oxcf.optimal_buffer_level / 100))))
+                resample_trigger = 1;
+            else
+                resample_trigger = 0;
+        }
+        else
+        {
+            int64_t clip_bits = (int64_t)(cpi->twopass.total_stats.count * cpi->oxcf.target_bandwidth / DOUBLE_DIVIDE_CHECK((double)cpi->framerate));
+            int64_t over_spend = cpi->oxcf.starting_buffer_level - cpi->buffer_level;
+
+            /* If triggered last time the threshold for triggering again is
+             * reduced:
+             *
+             * Projected Q higher than allowed and Overspend > 5% of total
+             * bits
+             */
+            if ((last_kf_resampled && (kf_q > cpi->worst_quality)) ||
+                ((kf_q > cpi->worst_quality) &&
+                 (over_spend > clip_bits / 20)))
+                resample_trigger = 1;
+            else
+                resample_trigger = 0;
+
+        }
+
+        if (resample_trigger)
+        {
+            while ((kf_q >= cpi->worst_quality) && (scale_val < 6))
+            {
+                scale_val ++;
+
+                cpi->common.vert_scale   = vscale_lookup[scale_val];
+                cpi->common.horiz_scale  = hscale_lookup[scale_val];
+
+                Scale2Ratio(cpi->common.horiz_scale, &hr, &hs);
+                Scale2Ratio(cpi->common.vert_scale, &vr, &vs);
+
+                new_width = ((hs - 1) + (cpi->oxcf.Width * hr)) / hs;
+                new_height = ((vs - 1) + (cpi->oxcf.Height * vr)) / vs;
+
+                /* Reducing the area to 1/4 does not reduce the complexity
+                 * (err_per_frame) to 1/4... effective_sizeratio attempts
+                 * to provide a crude correction for this
+                 */
+                effective_size_ratio = (double)(new_width * new_height) / (double)(cpi->oxcf.Width * cpi->oxcf.Height);
+                effective_size_ratio = (1.0 + (3.0 * effective_size_ratio)) / 4.0;
+
+                /* Now try again and see what Q we get with the smaller
+                 * image size
+                 */
+                kf_q = estimate_kf_group_q(cpi,
+                                          err_per_frame * effective_size_ratio,
+                                          (int)bits_per_frame, group_iiratio);
+
+                if (0)
+                {
+                    FILE *f = fopen("Subsamle.stt", "a");
+                    fprintf(f, "******** %8d %8d %8d %12.0f %8d %8d %8d\n",  kf_q, cpi->common.horiz_scale, cpi->common.vert_scale,  kf_group_err / cpi->twopass.frames_to_key, (int)(cpi->twopass.kf_group_bits / cpi->twopass.frames_to_key), new_height, new_width);
+                    fclose(f);
+                }
+            }
+        }
+
+        if ((cpi->common.Width != new_width) || (cpi->common.Height != new_height))
+        {
+            cpi->common.Width = new_width;
+            cpi->common.Height = new_height;
+            vp8_alloc_compressor_data(cpi);
+        }
+    }
+}
diff --git a/media/libvpx/vp8/encoder/firstpass.h b/media/libvpx/vp8/encoder/firstpass.h
new file mode 100644
index 000000000..c409ebca8
--- /dev/null
+++ b/media/libvpx/vp8/encoder/firstpass.h
@@ -0,0 +1,32 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_FIRSTPASS_H_
+#define VP8_ENCODER_FIRSTPASS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_init_first_pass(VP8_COMP *cpi);
+extern void vp8_first_pass(VP8_COMP *cpi);
+extern void vp8_end_first_pass(VP8_COMP *cpi);
+
+extern void vp8_init_second_pass(VP8_COMP *cpi);
+extern void vp8_second_pass(VP8_COMP *cpi);
+extern void vp8_end_second_pass(VP8_COMP *cpi);
+
+extern size_t vp8_firstpass_stats_sz(unsigned int mb_count);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_FIRSTPASS_H_
diff --git a/media/libvpx/vp8/encoder/lookahead.c b/media/libvpx/vp8/encoder/lookahead.c
new file mode 100644
index 000000000..662338574
--- /dev/null
+++ b/media/libvpx/vp8/encoder/lookahead.c
@@ -0,0 +1,231 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include "vpx_config.h"
+#include "lookahead.h"
+#include "vp8/common/extend.h"
+
+#define MAX_LAG_BUFFERS (CONFIG_REALTIME_ONLY? 1 : 25)
+
+struct lookahead_ctx
+{
+    unsigned int max_sz;         /* Absolute size of the queue */
+    unsigned int sz;             /* Number of buffers currently in the queue */
+    unsigned int read_idx;       /* Read index */
+    unsigned int write_idx;      /* Write index */
+    struct lookahead_entry *buf; /* Buffer list */
+};
+
+
+/* Return the buffer at the given absolute index and increment the index */
+static struct lookahead_entry *
+pop(struct lookahead_ctx *ctx,
+    unsigned int         *idx)
+{
+    unsigned int            index = *idx;
+    struct lookahead_entry *buf = ctx->buf + index;
+
+    assert(index < ctx->max_sz);
+    if(++index >= ctx->max_sz)
+        index -= ctx->max_sz;
+    *idx = index;
+    return buf;
+}
+
+
+void
+vp8_lookahead_destroy(struct lookahead_ctx *ctx)
+{
+    if(ctx)
+    {
+        if(ctx->buf)
+        {
+            unsigned int i;
+
+            for(i = 0; i < ctx->max_sz; i++)
+                vp8_yv12_de_alloc_frame_buffer(&ctx->buf[i].img);
+            free(ctx->buf);
+        }
+        free(ctx);
+    }
+}
+
+
+struct lookahead_ctx*
+vp8_lookahead_init(unsigned int width,
+                   unsigned int height,
+                   unsigned int depth)
+{
+    struct lookahead_ctx *ctx = NULL;
+    unsigned int i;
+
+    /* Clamp the lookahead queue depth */
+    if(depth < 1)
+        depth = 1;
+    else if(depth > MAX_LAG_BUFFERS)
+        depth = MAX_LAG_BUFFERS;
+
+    /* Keep last frame in lookahead buffer by increasing depth by 1.*/
+    depth += 1;
+
+    /* Align the buffer dimensions */
+    width = (width + 15) & ~15;
+    height = (height + 15) & ~15;
+
+    /* Allocate the lookahead structures */
+    ctx = calloc(1, sizeof(*ctx));
+    if(ctx)
+    {
+        ctx->max_sz = depth;
+        ctx->buf = calloc(depth, sizeof(*ctx->buf));
+        if(!ctx->buf)
+            goto bail;
+        for(i=0; i<depth; i++)
+            if (vp8_yv12_alloc_frame_buffer(&ctx->buf[i].img,
+                                            width, height, VP8BORDERINPIXELS))
+                goto bail;
+    }
+    return ctx;
+bail:
+    vp8_lookahead_destroy(ctx);
+    return NULL;
+}
+
+
+int
+vp8_lookahead_push(struct lookahead_ctx *ctx,
+                   YV12_BUFFER_CONFIG   *src,
+                   int64_t               ts_start,
+                   int64_t               ts_end,
+                   unsigned int          flags,
+                   unsigned char        *active_map)
+{
+    struct lookahead_entry* buf;
+    int row, col, active_end;
+    int mb_rows = (src->y_height + 15) >> 4;
+    int mb_cols = (src->y_width + 15) >> 4;
+
+    if(ctx->sz + 2 > ctx->max_sz)
+        return 1;
+    ctx->sz++;
+    buf = pop(ctx, &ctx->write_idx);
+
+    /* Only do this partial copy if the following conditions are all met:
+     * 1. Lookahead queue has has size of 1.
+     * 2. Active map is provided.
+     * 3. This is not a key frame, golden nor altref frame.
+     */
+    if (ctx->max_sz == 1 && active_map && !flags)
+    {
+        for (row = 0; row < mb_rows; ++row)
+        {
+            col = 0;
+
+            while (1)
+            {
+                /* Find the first active macroblock in this row. */
+                for (; col < mb_cols; ++col)
+                {
+                    if (active_map[col])
+                        break;
+                }
+
+                /* No more active macroblock in this row. */
+                if (col == mb_cols)
+                    break;
+
+                /* Find the end of active region in this row. */
+                active_end = col;
+
+                for (; active_end < mb_cols; ++active_end)
+                {
+                    if (!active_map[active_end])
+                        break;
+                }
+
+                /* Only copy this active region. */
+                vp8_copy_and_extend_frame_with_rect(src, &buf->img,
+                                                    row << 4,
+                                                    col << 4, 16,
+                                                    (active_end - col) << 4);
+
+                /* Start again from the end of this active region. */
+                col = active_end;
+            }
+
+            active_map += mb_cols;
+        }
+    }
+    else
+    {
+        vp8_copy_and_extend_frame(src, &buf->img);
+    }
+    buf->ts_start = ts_start;
+    buf->ts_end = ts_end;
+    buf->flags = flags;
+    return 0;
+}
+
+
+struct lookahead_entry*
+vp8_lookahead_pop(struct lookahead_ctx *ctx,
+                  int                   drain)
+{
+    struct lookahead_entry* buf = NULL;
+
+    assert(ctx != NULL);
+    if(ctx->sz && (drain || ctx->sz == ctx->max_sz - 1))
+    {
+        buf = pop(ctx, &ctx->read_idx);
+        ctx->sz--;
+    }
+    return buf;
+}
+
+
+struct lookahead_entry*
+vp8_lookahead_peek(struct lookahead_ctx *ctx,
+                   unsigned int          index,
+                   int                   direction)
+{
+    struct lookahead_entry* buf = NULL;
+
+    if (direction == PEEK_FORWARD)
+    {
+        assert(index < ctx->max_sz - 1);
+        if(index < ctx->sz)
+        {
+            index += ctx->read_idx;
+            if(index >= ctx->max_sz)
+                index -= ctx->max_sz;
+            buf = ctx->buf + index;
+        }
+    }
+    else if (direction == PEEK_BACKWARD)
+    {
+        assert(index == 1);
+
+        if(ctx->read_idx == 0)
+            index = ctx->max_sz - 1;
+        else
+            index = ctx->read_idx - index;
+        buf = ctx->buf + index;
+    }
+
+    return buf;
+}
+
+
+unsigned int
+vp8_lookahead_depth(struct lookahead_ctx *ctx)
+{
+    return ctx->sz;
+}
diff --git a/media/libvpx/vp8/encoder/lookahead.h b/media/libvpx/vp8/encoder/lookahead.h
new file mode 100644
index 000000000..cad68e639
--- /dev/null
+++ b/media/libvpx/vp8/encoder/lookahead.h
@@ -0,0 +1,117 @@
+/*
+ *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef VP8_ENCODER_LOOKAHEAD_H_
+#define VP8_ENCODER_LOOKAHEAD_H_
+#include "vpx_scale/yv12config.h"
+#include "vpx/vpx_integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct lookahead_entry
+{
+    YV12_BUFFER_CONFIG  img;
+    int64_t             ts_start;
+    int64_t             ts_end;
+    unsigned int        flags;
+};
+
+
+struct lookahead_ctx;
+
+/**\brief Initializes the lookahead stage
+ *
+ * The lookahead stage is a queue of frame buffers on which some analysis
+ * may be done when buffers are enqueued.
+ *
+ *
+ */
+struct lookahead_ctx* vp8_lookahead_init(unsigned int width,
+                                         unsigned int height,
+                                         unsigned int depth
+                                         );
+
+
+/**\brief Destroys the lookahead stage
+ *
+ */
+void vp8_lookahead_destroy(struct lookahead_ctx *ctx);
+
+
+/**\brief Enqueue a source buffer
+ *
+ * This function will copy the source image into a new framebuffer with
+ * the expected stride/border.
+ *
+ * If active_map is non-NULL and there is only one frame in the queue, then copy
+ * only active macroblocks.
+ *
+ * \param[in] ctx         Pointer to the lookahead context
+ * \param[in] src         Pointer to the image to enqueue
+ * \param[in] ts_start    Timestamp for the start of this frame
+ * \param[in] ts_end      Timestamp for the end of this frame
+ * \param[in] flags       Flags set on this frame
+ * \param[in] active_map  Map that specifies which macroblock is active
+ */
+int
+vp8_lookahead_push(struct lookahead_ctx *ctx,
+                   YV12_BUFFER_CONFIG   *src,
+                   int64_t               ts_start,
+                   int64_t               ts_end,
+                   unsigned int          flags,
+                   unsigned char        *active_map);
+
+
+/**\brief Get the next source buffer to encode
+ *
+ *
+ * \param[in] ctx       Pointer to the lookahead context
+ * \param[in] drain     Flag indicating the buffer should be drained
+ *                      (return a buffer regardless of the current queue depth)
+ *
+ * \retval NULL, if drain set and queue is empty
+ * \retval NULL, if drain not set and queue not of the configured depth
+ *
+ */
+struct lookahead_entry*
+vp8_lookahead_pop(struct lookahead_ctx *ctx,
+                  int                   drain);
+
+
+#define PEEK_FORWARD   1
+#define PEEK_BACKWARD -1
+/**\brief Get a future source buffer to encode
+ *
+ * \param[in] ctx       Pointer to the lookahead context
+ * \param[in] index     Index of the frame to be returned, 0 == next frame
+ *
+ * \retval NULL, if no buffer exists at the specified index
+ *
+ */
+struct lookahead_entry*
+vp8_lookahead_peek(struct lookahead_ctx *ctx,
+                   unsigned int          index,
+                   int                   direction);
+
+
+/**\brief Get the number of frames currently in the lookahead queue
+ *
+ * \param[in] ctx       Pointer to the lookahead context
+ */
+unsigned int
+vp8_lookahead_depth(struct lookahead_ctx *ctx);
+
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_LOOKAHEAD_H_
diff --git a/media/libvpx/vp8/encoder/mcomp.c b/media/libvpx/vp8/encoder/mcomp.c
new file mode 100644
index 000000000..f848e8fb5
--- /dev/null
+++ b/media/libvpx/vp8/encoder/mcomp.c
@@ -0,0 +1,2032 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "./vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "onyx_int.h"
+#include "mcomp.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_config.h"
+#include <stdio.h>
+#include <limits.h>
+#include <math.h>
+#include "vp8/common/findnearmv.h"
+#include "vp8/common/common.h"
+
+#ifdef VP8_ENTROPY_STATS
+static int mv_ref_ct [31] [4] [2];
+static int mv_mode_cts [4] [2];
+#endif
+
+int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight)
+{
+    /* MV costing is based on the distribution of vectors in the previous
+     * frame and as such will tend to over state the cost of vectors. In
+     * addition coding a new vector can have a knock on effect on the cost
+     * of subsequent vectors and the quality of prediction from NEAR and
+     * NEAREST for subsequent blocks. The "Weight" parameter allows, to a
+     * limited extent, for some account to be taken of these factors.
+     */
+    return ((mvcost[0][(mv->as_mv.row - ref->as_mv.row) >> 1] + mvcost[1][(mv->as_mv.col - ref->as_mv.col) >> 1]) * Weight) >> 7;
+}
+
+static int mv_err_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int error_per_bit)
+{
+    /* Ignore mv costing if mvcost is NULL */
+    if (mvcost)
+        return ((mvcost[0][(mv->as_mv.row - ref->as_mv.row) >> 1] +
+                 mvcost[1][(mv->as_mv.col - ref->as_mv.col) >> 1])
+                 * error_per_bit + 128) >> 8;
+    return 0;
+}
+
+static int mvsad_err_cost(int_mv *mv, int_mv *ref, int *mvsadcost[2], int error_per_bit)
+{
+    /* Calculate sad error cost on full pixel basis. */
+    /* Ignore mv costing if mvsadcost is NULL */
+    if (mvsadcost)
+        return ((mvsadcost[0][(mv->as_mv.row - ref->as_mv.row)] +
+                 mvsadcost[1][(mv->as_mv.col - ref->as_mv.col)])
+                * error_per_bit + 128) >> 8;
+    return 0;
+}
+
+void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride)
+{
+    int Len;
+    int search_site_count = 0;
+
+
+    /* Generate offsets for 4 search sites per step. */
+    Len = MAX_FIRST_STEP;
+    x->ss[search_site_count].mv.col = 0;
+    x->ss[search_site_count].mv.row = 0;
+    x->ss[search_site_count].offset = 0;
+    search_site_count++;
+
+    while (Len > 0)
+    {
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = 0;
+        x->ss[search_site_count].mv.row = -Len;
+        x->ss[search_site_count].offset = -Len * stride;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = 0;
+        x->ss[search_site_count].mv.row = Len;
+        x->ss[search_site_count].offset = Len * stride;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = -Len;
+        x->ss[search_site_count].mv.row = 0;
+        x->ss[search_site_count].offset = -Len;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = Len;
+        x->ss[search_site_count].mv.row = 0;
+        x->ss[search_site_count].offset = Len;
+        search_site_count++;
+
+        /* Contract. */
+        Len /= 2;
+    }
+
+    x->ss_count = search_site_count;
+    x->searches_per_step = 4;
+}
+
+void vp8_init3smotion_compensation(MACROBLOCK *x, int stride)
+{
+    int Len;
+    int search_site_count = 0;
+
+    /* Generate offsets for 8 search sites per step. */
+    Len = MAX_FIRST_STEP;
+    x->ss[search_site_count].mv.col = 0;
+    x->ss[search_site_count].mv.row = 0;
+    x->ss[search_site_count].offset = 0;
+    search_site_count++;
+
+    while (Len > 0)
+    {
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = 0;
+        x->ss[search_site_count].mv.row = -Len;
+        x->ss[search_site_count].offset = -Len * stride;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = 0;
+        x->ss[search_site_count].mv.row = Len;
+        x->ss[search_site_count].offset = Len * stride;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = -Len;
+        x->ss[search_site_count].mv.row = 0;
+        x->ss[search_site_count].offset = -Len;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = Len;
+        x->ss[search_site_count].mv.row = 0;
+        x->ss[search_site_count].offset = Len;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = -Len;
+        x->ss[search_site_count].mv.row = -Len;
+        x->ss[search_site_count].offset = -Len * stride - Len;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = Len;
+        x->ss[search_site_count].mv.row = -Len;
+        x->ss[search_site_count].offset = -Len * stride + Len;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = -Len;
+        x->ss[search_site_count].mv.row = Len;
+        x->ss[search_site_count].offset = Len * stride - Len;
+        search_site_count++;
+
+        /* Compute offsets for search sites. */
+        x->ss[search_site_count].mv.col = Len;
+        x->ss[search_site_count].mv.row = Len;
+        x->ss[search_site_count].offset = Len * stride + Len;
+        search_site_count++;
+
+
+        /* Contract. */
+        Len /= 2;
+    }
+
+    x->ss_count = search_site_count;
+    x->searches_per_step = 8;
+}
+
+/*
+ * To avoid the penalty for crossing cache-line read, preload the reference
+ * area in a small buffer, which is aligned to make sure there won't be crossing
+ * cache-line read while reading from this buffer. This reduced the cpu
+ * cycles spent on reading ref data in sub-pixel filter functions.
+ * TODO: Currently, since sub-pixel search range here is -3 ~ 3, copy 22 rows x
+ * 32 cols area that is enough for 16x16 macroblock. Later, for SPLITMV, we
+ * could reduce the area.
+ */
+
+/* estimated cost of a motion vector (r,c) */
+#define MVC(r,c) (mvcost ? ((mvcost[0][(r)-rr] + mvcost[1][(c) - rc]) * error_per_bit + 128 )>>8 : 0)
+/* pointer to predictor base of a motionvector */
+#define PRE(r,c) (y + (((r)>>2) * y_stride + ((c)>>2) -(offset)))
+/* convert motion vector component to offset for svf calc */
+#define SP(x) (((x)&3)<<1)
+/* returns subpixel variance error function. */
+#define DIST(r,c) vfp->svf( PRE(r,c), y_stride, SP(c),SP(r), z,b->src_stride,&sse)
+#define IFMVCV(r,c,s,e) if ( c >= minc && c <= maxc && r >= minr && r <= maxr) s else e;
+/* returns distortion + motion vector cost */
+#define ERR(r,c) (MVC(r,c)+DIST(r,c))
+/* checks if (r,c) has better score than previous best */
+#define CHECK_BETTER(v,r,c) IFMVCV(r,c,{thismse = DIST(r,c); if((v = (MVC(r,c)+thismse)) < besterr) { besterr = v; br=r; bc=c; *distortion = thismse; *sse1 = sse; }}, v=UINT_MAX;)
+
+int vp8_find_best_sub_pixel_step_iteratively(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
+                                             int_mv *bestmv, int_mv *ref_mv,
+                                             int error_per_bit,
+                                             const vp8_variance_fn_ptr_t *vfp,
+                                             int *mvcost[2], int *distortion,
+                                             unsigned int *sse1)
+{
+    unsigned char *z = (*(b->base_src) + b->src);
+
+    int rr = ref_mv->as_mv.row >> 1, rc = ref_mv->as_mv.col >> 1;
+    int br = bestmv->as_mv.row * 4, bc = bestmv->as_mv.col * 4;
+    int tr = br, tc = bc;
+    unsigned int besterr;
+    unsigned int left, right, up, down, diag;
+    unsigned int sse;
+    unsigned int whichdir;
+    unsigned int halfiters = 4;
+    unsigned int quarteriters = 4;
+    int thismse;
+
+    int minc = MAX(x->mv_col_min * 4,
+                   (ref_mv->as_mv.col >> 1) - ((1 << mvlong_width) - 1));
+    int maxc = MIN(x->mv_col_max * 4,
+                   (ref_mv->as_mv.col >> 1) + ((1 << mvlong_width) - 1));
+    int minr = MAX(x->mv_row_min * 4,
+                   (ref_mv->as_mv.row >> 1) - ((1 << mvlong_width) - 1));
+    int maxr = MIN(x->mv_row_max * 4,
+                   (ref_mv->as_mv.row >> 1) + ((1 << mvlong_width) - 1));
+
+    int y_stride;
+    int offset;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+
+
+#if ARCH_X86 || ARCH_X86_64
+    MACROBLOCKD *xd = &x->e_mbd;
+    unsigned char *y_0 = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
+    unsigned char *y;
+    int buf_r1, buf_r2, buf_c1;
+
+    /* Clamping to avoid out-of-range data access */
+    buf_r1 = ((bestmv->as_mv.row - 3) < x->mv_row_min)?(bestmv->as_mv.row - x->mv_row_min):3;
+    buf_r2 = ((bestmv->as_mv.row + 3) > x->mv_row_max)?(x->mv_row_max - bestmv->as_mv.row):3;
+    buf_c1 = ((bestmv->as_mv.col - 3) < x->mv_col_min)?(bestmv->as_mv.col - x->mv_col_min):3;
+    y_stride = 32;
+
+    /* Copy to intermediate buffer before searching. */
+    vfp->copymem(y_0 - buf_c1 - pre_stride*buf_r1, pre_stride, xd->y_buf, y_stride, 16+buf_r1+buf_r2);
+    y = xd->y_buf + y_stride*buf_r1 +buf_c1;
+#else
+    unsigned char *y = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
+    y_stride = pre_stride;
+#endif
+
+    offset = (bestmv->as_mv.row) * y_stride + bestmv->as_mv.col;
+
+    /* central mv */
+    bestmv->as_mv.row *= 8;
+    bestmv->as_mv.col *= 8;
+
+    /* calculate central point error */
+    besterr = vfp->vf(y, y_stride, z, b->src_stride, sse1);
+    *distortion = besterr;
+    besterr += mv_err_cost(bestmv, ref_mv, mvcost, error_per_bit);
+
+    /* TODO: Each subsequent iteration checks at least one point in common
+     * with the last iteration could be 2 ( if diag selected)
+     */
+    while (--halfiters)
+    {
+        /* 1/2 pel */
+        CHECK_BETTER(left, tr, tc - 2);
+        CHECK_BETTER(right, tr, tc + 2);
+        CHECK_BETTER(up, tr - 2, tc);
+        CHECK_BETTER(down, tr + 2, tc);
+
+        whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
+
+        switch (whichdir)
+        {
+        case 0:
+            CHECK_BETTER(diag, tr - 2, tc - 2);
+            break;
+        case 1:
+            CHECK_BETTER(diag, tr - 2, tc + 2);
+            break;
+        case 2:
+            CHECK_BETTER(diag, tr + 2, tc - 2);
+            break;
+        case 3:
+            CHECK_BETTER(diag, tr + 2, tc + 2);
+            break;
+        }
+
+        /* no reason to check the same one again. */
+        if (tr == br && tc == bc)
+            break;
+
+        tr = br;
+        tc = bc;
+    }
+
+    /* TODO: Each subsequent iteration checks at least one point in common
+     * with the last iteration could be 2 ( if diag selected)
+     */
+
+    /* 1/4 pel */
+    while (--quarteriters)
+    {
+        CHECK_BETTER(left, tr, tc - 1);
+        CHECK_BETTER(right, tr, tc + 1);
+        CHECK_BETTER(up, tr - 1, tc);
+        CHECK_BETTER(down, tr + 1, tc);
+
+        whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
+
+        switch (whichdir)
+        {
+        case 0:
+            CHECK_BETTER(diag, tr - 1, tc - 1);
+            break;
+        case 1:
+            CHECK_BETTER(diag, tr - 1, tc + 1);
+            break;
+        case 2:
+            CHECK_BETTER(diag, tr + 1, tc - 1);
+            break;
+        case 3:
+            CHECK_BETTER(diag, tr + 1, tc + 1);
+            break;
+        }
+
+        /* no reason to check the same one again. */
+        if (tr == br && tc == bc)
+            break;
+
+        tr = br;
+        tc = bc;
+    }
+
+    bestmv->as_mv.row = br * 2;
+    bestmv->as_mv.col = bc * 2;
+
+    if ((abs(bestmv->as_mv.col - ref_mv->as_mv.col) > (MAX_FULL_PEL_VAL<<3)) ||
+        (abs(bestmv->as_mv.row - ref_mv->as_mv.row) > (MAX_FULL_PEL_VAL<<3)))
+        return INT_MAX;
+
+    return besterr;
+}
+#undef MVC
+#undef PRE
+#undef SP
+#undef DIST
+#undef IFMVCV
+#undef ERR
+#undef CHECK_BETTER
+
+int vp8_find_best_sub_pixel_step(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
+                                 int_mv *bestmv, int_mv *ref_mv,
+                                 int error_per_bit,
+                                 const vp8_variance_fn_ptr_t *vfp,
+                                 int *mvcost[2], int *distortion,
+                                 unsigned int *sse1)
+{
+    int bestmse = INT_MAX;
+    int_mv startmv;
+    int_mv this_mv;
+    unsigned char *z = (*(b->base_src) + b->src);
+    int left, right, up, down, diag;
+    unsigned int sse;
+    int whichdir ;
+    int thismse;
+    int y_stride;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+
+#if ARCH_X86 || ARCH_X86_64
+    MACROBLOCKD *xd = &x->e_mbd;
+    unsigned char *y_0 = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
+    unsigned char *y;
+
+    y_stride = 32;
+    /* Copy 18 rows x 32 cols area to intermediate buffer before searching. */
+     vfp->copymem(y_0 - 1 - pre_stride, pre_stride, xd->y_buf, y_stride, 18);
+     y = xd->y_buf + y_stride + 1;
+#else
+     unsigned char *y = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
+     y_stride = pre_stride;
+#endif
+
+    /* central mv */
+    bestmv->as_mv.row *= 8;
+    bestmv->as_mv.col *= 8;
+    startmv = *bestmv;
+
+    /* calculate central point error */
+    bestmse = vfp->vf(y, y_stride, z, b->src_stride, sse1);
+    *distortion = bestmse;
+    bestmse += mv_err_cost(bestmv, ref_mv, mvcost, error_per_bit);
+
+    /* go left then right and check error */
+    this_mv.as_mv.row = startmv.as_mv.row;
+    this_mv.as_mv.col = ((startmv.as_mv.col - 8) | 4);
+    thismse = vfp->svf_halfpix_h(y - 1, y_stride, z, b->src_stride, &sse);
+    left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (left < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = left;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    this_mv.as_mv.col += 8;
+    thismse = vfp->svf_halfpix_h(y, y_stride, z, b->src_stride, &sse);
+    right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (right < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = right;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    /* go up then down and check error */
+    this_mv.as_mv.col = startmv.as_mv.col;
+    this_mv.as_mv.row = ((startmv.as_mv.row - 8) | 4);
+    thismse =  vfp->svf_halfpix_v(y - y_stride, y_stride, z, b->src_stride, &sse);
+    up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (up < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = up;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    this_mv.as_mv.row += 8;
+    thismse = vfp->svf_halfpix_v(y, y_stride, z, b->src_stride, &sse);
+    down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (down < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = down;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+
+    /* now check 1 more diagonal */
+    whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
+    this_mv = startmv;
+
+    switch (whichdir)
+    {
+    case 0:
+        this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
+        this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
+        thismse = vfp->svf_halfpix_hv(y - 1 - y_stride, y_stride, z, b->src_stride, &sse);
+        break;
+    case 1:
+        this_mv.as_mv.col += 4;
+        this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
+        thismse = vfp->svf_halfpix_hv(y - y_stride, y_stride, z, b->src_stride, &sse);
+        break;
+    case 2:
+        this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
+        this_mv.as_mv.row += 4;
+        thismse = vfp->svf_halfpix_hv(y - 1, y_stride, z, b->src_stride, &sse);
+        break;
+    case 3:
+    default:
+        this_mv.as_mv.col += 4;
+        this_mv.as_mv.row += 4;
+        thismse = vfp->svf_halfpix_hv(y, y_stride, z, b->src_stride, &sse);
+        break;
+    }
+
+    diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (diag < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = diag;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+
+    /* time to check quarter pels. */
+    if (bestmv->as_mv.row < startmv.as_mv.row)
+        y -= y_stride;
+
+    if (bestmv->as_mv.col < startmv.as_mv.col)
+        y--;
+
+    startmv = *bestmv;
+
+
+
+    /* go left then right and check error */
+    this_mv.as_mv.row = startmv.as_mv.row;
+
+    if (startmv.as_mv.col & 7)
+    {
+        this_mv.as_mv.col = startmv.as_mv.col - 2;
+        thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+    }
+    else
+    {
+        this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
+        thismse = vfp->svf(y - 1, y_stride, 6, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+    }
+
+    left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (left < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = left;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    this_mv.as_mv.col += 4;
+    thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+    right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (right < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = right;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    /* go up then down and check error */
+    this_mv.as_mv.col = startmv.as_mv.col;
+
+    if (startmv.as_mv.row & 7)
+    {
+        this_mv.as_mv.row = startmv.as_mv.row - 2;
+        thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+    }
+    else
+    {
+        this_mv.as_mv.row = (startmv.as_mv.row - 8) | 6;
+        thismse = vfp->svf(y - y_stride, y_stride, this_mv.as_mv.col & 7, 6, z, b->src_stride, &sse);
+    }
+
+    up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (up < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = up;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    this_mv.as_mv.row += 4;
+    thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+    down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (down < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = down;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+
+    /* now check 1 more diagonal */
+    whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
+
+    this_mv = startmv;
+
+    switch (whichdir)
+    {
+    case 0:
+
+        if (startmv.as_mv.row & 7)
+        {
+            this_mv.as_mv.row -= 2;
+
+            if (startmv.as_mv.col & 7)
+            {
+                this_mv.as_mv.col -= 2;
+                thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+            }
+            else
+            {
+                this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
+                thismse = vfp->svf(y - 1, y_stride, 6, this_mv.as_mv.row & 7, z, b->src_stride, &sse);;
+            }
+        }
+        else
+        {
+            this_mv.as_mv.row = (startmv.as_mv.row - 8) | 6;
+
+            if (startmv.as_mv.col & 7)
+            {
+                this_mv.as_mv.col -= 2;
+                thismse = vfp->svf(y - y_stride, y_stride, this_mv.as_mv.col & 7, 6, z, b->src_stride, &sse);
+            }
+            else
+            {
+                this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
+                thismse = vfp->svf(y - y_stride - 1, y_stride, 6, 6, z, b->src_stride, &sse);
+            }
+        }
+
+        break;
+    case 1:
+        this_mv.as_mv.col += 2;
+
+        if (startmv.as_mv.row & 7)
+        {
+            this_mv.as_mv.row -= 2;
+            thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+        }
+        else
+        {
+            this_mv.as_mv.row = (startmv.as_mv.row - 8) | 6;
+            thismse = vfp->svf(y - y_stride, y_stride, this_mv.as_mv.col & 7, 6, z, b->src_stride, &sse);
+        }
+
+        break;
+    case 2:
+        this_mv.as_mv.row += 2;
+
+        if (startmv.as_mv.col & 7)
+        {
+            this_mv.as_mv.col -= 2;
+            thismse = vfp->svf(y, y_stride, this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+        }
+        else
+        {
+            this_mv.as_mv.col = (startmv.as_mv.col - 8) | 6;
+            thismse = vfp->svf(y - 1, y_stride, 6, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+        }
+
+        break;
+    case 3:
+        this_mv.as_mv.col += 2;
+        this_mv.as_mv.row += 2;
+        thismse = vfp->svf(y, y_stride,  this_mv.as_mv.col & 7, this_mv.as_mv.row & 7, z, b->src_stride, &sse);
+        break;
+    }
+
+    diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (diag < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = diag;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    return bestmse;
+}
+
+int vp8_find_best_half_pixel_step(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
+                                  int_mv *bestmv, int_mv *ref_mv,
+                                  int error_per_bit,
+                                  const vp8_variance_fn_ptr_t *vfp,
+                                  int *mvcost[2], int *distortion,
+                                  unsigned int *sse1)
+{
+    int bestmse = INT_MAX;
+    int_mv startmv;
+    int_mv this_mv;
+    unsigned char *z = (*(b->base_src) + b->src);
+    int left, right, up, down, diag;
+    unsigned int sse;
+    int whichdir ;
+    int thismse;
+    int y_stride;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+
+#if ARCH_X86 || ARCH_X86_64
+    MACROBLOCKD *xd = &x->e_mbd;
+    unsigned char *y_0 = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
+    unsigned char *y;
+
+    y_stride = 32;
+    /* Copy 18 rows x 32 cols area to intermediate buffer before searching. */
+    vfp->copymem(y_0 - 1 - pre_stride, pre_stride, xd->y_buf, y_stride, 18);
+    y = xd->y_buf + y_stride + 1;
+#else
+    unsigned char *y = base_pre + d->offset + (bestmv->as_mv.row) * pre_stride + bestmv->as_mv.col;
+    y_stride = pre_stride;
+#endif
+
+    /* central mv */
+    bestmv->as_mv.row *= 8;
+    bestmv->as_mv.col *= 8;
+    startmv = *bestmv;
+
+    /* calculate central point error */
+    bestmse = vfp->vf(y, y_stride, z, b->src_stride, sse1);
+    *distortion = bestmse;
+    bestmse += mv_err_cost(bestmv, ref_mv, mvcost, error_per_bit);
+
+    /* go left then right and check error */
+    this_mv.as_mv.row = startmv.as_mv.row;
+    this_mv.as_mv.col = ((startmv.as_mv.col - 8) | 4);
+    thismse = vfp->svf_halfpix_h(y - 1, y_stride, z, b->src_stride, &sse);
+    left = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (left < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = left;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    this_mv.as_mv.col += 8;
+    thismse = vfp->svf_halfpix_h(y, y_stride, z, b->src_stride, &sse);
+    right = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (right < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = right;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    /* go up then down and check error */
+    this_mv.as_mv.col = startmv.as_mv.col;
+    this_mv.as_mv.row = ((startmv.as_mv.row - 8) | 4);
+    thismse = vfp->svf_halfpix_v(y - y_stride, y_stride, z, b->src_stride, &sse);
+    up = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (up < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = up;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    this_mv.as_mv.row += 8;
+    thismse = vfp->svf_halfpix_v(y, y_stride, z, b->src_stride, &sse);
+    down = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (down < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = down;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    /* now check 1 more diagonal - */
+    whichdir = (left < right ? 0 : 1) + (up < down ? 0 : 2);
+    this_mv = startmv;
+
+    switch (whichdir)
+    {
+    case 0:
+        this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
+        this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
+        thismse = vfp->svf_halfpix_hv(y - 1 - y_stride, y_stride, z, b->src_stride, &sse);
+        break;
+    case 1:
+        this_mv.as_mv.col += 4;
+        this_mv.as_mv.row = (this_mv.as_mv.row - 8) | 4;
+        thismse = vfp->svf_halfpix_hv(y - y_stride, y_stride, z, b->src_stride, &sse);
+        break;
+    case 2:
+        this_mv.as_mv.col = (this_mv.as_mv.col - 8) | 4;
+        this_mv.as_mv.row += 4;
+        thismse = vfp->svf_halfpix_hv(y - 1, y_stride, z, b->src_stride, &sse);
+        break;
+    case 3:
+    default:
+        this_mv.as_mv.col += 4;
+        this_mv.as_mv.row += 4;
+        thismse = vfp->svf_halfpix_hv(y, y_stride, z, b->src_stride, &sse);
+        break;
+    }
+
+    diag = thismse + mv_err_cost(&this_mv, ref_mv, mvcost, error_per_bit);
+
+    if (diag < bestmse)
+    {
+        *bestmv = this_mv;
+        bestmse = diag;
+        *distortion = thismse;
+        *sse1 = sse;
+    }
+
+    return bestmse;
+}
+
+#define CHECK_BOUNDS(range) \
+{\
+    all_in = 1;\
+    all_in &= ((br-range) >= x->mv_row_min);\
+    all_in &= ((br+range) <= x->mv_row_max);\
+    all_in &= ((bc-range) >= x->mv_col_min);\
+    all_in &= ((bc+range) <= x->mv_col_max);\
+}
+
+#define CHECK_POINT \
+{\
+    if (this_mv.as_mv.col < x->mv_col_min) continue;\
+    if (this_mv.as_mv.col > x->mv_col_max) continue;\
+    if (this_mv.as_mv.row < x->mv_row_min) continue;\
+    if (this_mv.as_mv.row > x->mv_row_max) continue;\
+}
+
+#define CHECK_BETTER \
+{\
+    if (thissad < bestsad)\
+    {\
+        thissad += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, sad_per_bit);\
+        if (thissad < bestsad)\
+        {\
+            bestsad = thissad;\
+            best_site = i;\
+        }\
+    }\
+}
+
+static const MV next_chkpts[6][3] =
+{
+    {{ -2, 0}, { -1, -2}, {1, -2}},
+    {{ -1, -2}, {1, -2}, {2, 0}},
+    {{1, -2}, {2, 0}, {1, 2}},
+    {{2, 0}, {1, 2}, { -1, 2}},
+    {{1, 2}, { -1, 2}, { -2, 0}},
+    {{ -1, 2}, { -2, 0}, { -1, -2}}
+};
+
+int vp8_hex_search
+(
+    MACROBLOCK *x,
+    BLOCK *b,
+    BLOCKD *d,
+    int_mv *ref_mv,
+    int_mv *best_mv,
+    int search_param,
+    int sad_per_bit,
+    const vp8_variance_fn_ptr_t *vfp,
+    int *mvsadcost[2],
+    int *mvcost[2],
+    int_mv *center_mv
+)
+{
+    MV hex[6] = { { -1, -2}, {1, -2}, {2, 0}, {1, 2}, { -1, 2}, { -2, 0} } ;
+    MV neighbors[4] = {{0, -1}, { -1, 0}, {1, 0}, {0, 1}} ;
+    int i, j;
+
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+
+    int in_what_stride = pre_stride;
+    int br, bc;
+    int_mv this_mv;
+    unsigned int bestsad;
+    unsigned int thissad;
+    unsigned char *base_offset;
+    unsigned char *this_offset;
+    int k = -1;
+    int all_in;
+    int best_site = -1;
+    int hex_range = 127;
+    int dia_range = 8;
+
+    int_mv fcenter_mv;
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    (void)mvcost;
+
+    /* adjust ref_mv to make sure it is within MV range */
+    vp8_clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+    br = ref_mv->as_mv.row;
+    bc = ref_mv->as_mv.col;
+
+    /* Work out the start point for the search */
+    base_offset = (unsigned char *)(base_pre + d->offset);
+    this_offset = base_offset + (br * (pre_stride)) + bc;
+    this_mv.as_mv.row = br;
+    this_mv.as_mv.col = bc;
+    bestsad = vfp->sdf(what, what_stride, this_offset, in_what_stride)
+            + mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, sad_per_bit);
+
+#if CONFIG_MULTI_RES_ENCODING
+    /* Lower search range based on prediction info */
+    if (search_param >= 6) goto cal_neighbors;
+    else if (search_param >= 5) hex_range = 4;
+    else if (search_param >= 4) hex_range = 6;
+    else if (search_param >= 3) hex_range = 15;
+    else if (search_param >= 2) hex_range = 31;
+    else if (search_param >= 1) hex_range = 63;
+
+    dia_range = 8;
+#else
+    (void)search_param;
+#endif
+
+    /* hex search */
+    CHECK_BOUNDS(2)
+
+    if(all_in)
+    {
+        for (i = 0; i < 6; i++)
+        {
+            this_mv.as_mv.row = br + hex[i].row;
+            this_mv.as_mv.col = bc + hex[i].col;
+            this_offset = base_offset + (this_mv.as_mv.row * in_what_stride) + this_mv.as_mv.col;
+            thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride);
+            CHECK_BETTER
+        }
+    }else
+    {
+        for (i = 0; i < 6; i++)
+        {
+            this_mv.as_mv.row = br + hex[i].row;
+            this_mv.as_mv.col = bc + hex[i].col;
+            CHECK_POINT
+            this_offset = base_offset + (this_mv.as_mv.row * in_what_stride) + this_mv.as_mv.col;
+            thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride);
+            CHECK_BETTER
+        }
+    }
+
+    if (best_site == -1)
+        goto cal_neighbors;
+    else
+    {
+        br += hex[best_site].row;
+        bc += hex[best_site].col;
+        k = best_site;
+    }
+
+    for (j = 1; j < hex_range; j++)
+    {
+        best_site = -1;
+        CHECK_BOUNDS(2)
+
+        if(all_in)
+        {
+            for (i = 0; i < 3; i++)
+            {
+                this_mv.as_mv.row = br + next_chkpts[k][i].row;
+                this_mv.as_mv.col = bc + next_chkpts[k][i].col;
+                this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
+                thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride);
+                CHECK_BETTER
+            }
+        }else
+        {
+            for (i = 0; i < 3; i++)
+            {
+                this_mv.as_mv.row = br + next_chkpts[k][i].row;
+                this_mv.as_mv.col = bc + next_chkpts[k][i].col;
+                CHECK_POINT
+                this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
+                thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride);
+                CHECK_BETTER
+            }
+        }
+
+        if (best_site == -1)
+            break;
+        else
+        {
+            br += next_chkpts[k][best_site].row;
+            bc += next_chkpts[k][best_site].col;
+            k += 5 + best_site;
+            if (k >= 12) k -= 12;
+            else if (k >= 6) k -= 6;
+        }
+    }
+
+    /* check 4 1-away neighbors */
+cal_neighbors:
+    for (j = 0; j < dia_range; j++)
+    {
+        best_site = -1;
+        CHECK_BOUNDS(1)
+
+        if(all_in)
+        {
+            for (i = 0; i < 4; i++)
+            {
+                this_mv.as_mv.row = br + neighbors[i].row;
+                this_mv.as_mv.col = bc + neighbors[i].col;
+                this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
+                thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride);
+                CHECK_BETTER
+            }
+        }else
+        {
+            for (i = 0; i < 4; i++)
+            {
+                this_mv.as_mv.row = br + neighbors[i].row;
+                this_mv.as_mv.col = bc + neighbors[i].col;
+                CHECK_POINT
+                this_offset = base_offset + (this_mv.as_mv.row * (in_what_stride)) + this_mv.as_mv.col;
+                thissad = vfp->sdf(what, what_stride, this_offset, in_what_stride);
+                CHECK_BETTER
+            }
+        }
+
+        if (best_site == -1)
+            break;
+        else
+        {
+            br += neighbors[best_site].row;
+            bc += neighbors[best_site].col;
+        }
+    }
+
+    best_mv->as_mv.row = br;
+    best_mv->as_mv.col = bc;
+
+    return bestsad;
+}
+#undef CHECK_BOUNDS
+#undef CHECK_POINT
+#undef CHECK_BETTER
+
+int vp8_diamond_search_sad_c
+(
+    MACROBLOCK *x,
+    BLOCK *b,
+    BLOCKD *d,
+    int_mv *ref_mv,
+    int_mv *best_mv,
+    int search_param,
+    int sad_per_bit,
+    int *num00,
+    vp8_variance_fn_ptr_t *fn_ptr,
+    int *mvcost[2],
+    int_mv *center_mv
+)
+{
+    int i, j, step;
+
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    unsigned char *in_what;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int in_what_stride = pre_stride;
+    unsigned char *best_address;
+
+    int tot_steps;
+    int_mv this_mv;
+
+    unsigned int bestsad;
+    unsigned int thissad;
+    int best_site = 0;
+    int last_site = 0;
+
+    int ref_row;
+    int ref_col;
+    int this_row_offset;
+    int this_col_offset;
+    search_site *ss;
+
+    unsigned char *check_here;
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    vp8_clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+    ref_row = ref_mv->as_mv.row;
+    ref_col = ref_mv->as_mv.col;
+    *num00 = 0;
+    best_mv->as_mv.row = ref_row;
+    best_mv->as_mv.col = ref_col;
+
+    /* Work out the start point for the search */
+    in_what = (unsigned char *)(base_pre + d->offset + (ref_row * pre_stride) + ref_col);
+    best_address = in_what;
+
+    /* Check the starting position */
+    bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride)
+            + mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
+
+    /* search_param determines the length of the initial step and hence
+     * the number of iterations 0 = initial step (MAX_FIRST_STEP) pel :
+     * 1 = (MAX_FIRST_STEP/2) pel, 2 = (MAX_FIRST_STEP/4) pel... etc.
+     */
+    ss = &x->ss[search_param * x->searches_per_step];
+    tot_steps = (x->ss_count / x->searches_per_step) - search_param;
+
+    i = 1;
+
+    for (step = 0; step < tot_steps ; step++)
+    {
+        for (j = 0 ; j < x->searches_per_step ; j++)
+        {
+            /* Trap illegal vectors */
+            this_row_offset = best_mv->as_mv.row + ss[i].mv.row;
+            this_col_offset = best_mv->as_mv.col + ss[i].mv.col;
+
+            if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
+            (this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max))
+
+            {
+                check_here = ss[i].offset + best_address;
+                thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride);
+
+                if (thissad < bestsad)
+                {
+                    this_mv.as_mv.row = this_row_offset;
+                    this_mv.as_mv.col = this_col_offset;
+                    thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                              mvsadcost, sad_per_bit);
+
+                    if (thissad < bestsad)
+                    {
+                        bestsad = thissad;
+                        best_site = i;
+                    }
+                }
+            }
+
+            i++;
+        }
+
+        if (best_site != last_site)
+        {
+            best_mv->as_mv.row += ss[best_site].mv.row;
+            best_mv->as_mv.col += ss[best_site].mv.col;
+            best_address += ss[best_site].offset;
+            last_site = best_site;
+        }
+        else if (best_address == in_what)
+            (*num00)++;
+    }
+
+    this_mv.as_mv.row = best_mv->as_mv.row << 3;
+    this_mv.as_mv.col = best_mv->as_mv.col << 3;
+
+    return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+int vp8_diamond_search_sadx4
+(
+    MACROBLOCK *x,
+    BLOCK *b,
+    BLOCKD *d,
+    int_mv *ref_mv,
+    int_mv *best_mv,
+    int search_param,
+    int sad_per_bit,
+    int *num00,
+    vp8_variance_fn_ptr_t *fn_ptr,
+    int *mvcost[2],
+    int_mv *center_mv
+)
+{
+    int i, j, step;
+
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    unsigned char *in_what;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int in_what_stride = pre_stride;
+    unsigned char *best_address;
+
+    int tot_steps;
+    int_mv this_mv;
+
+    unsigned int bestsad;
+    unsigned int thissad;
+    int best_site = 0;
+    int last_site = 0;
+
+    int ref_row;
+    int ref_col;
+    int this_row_offset;
+    int this_col_offset;
+    search_site *ss;
+
+    unsigned char *check_here;
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    vp8_clamp_mv(ref_mv, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+    ref_row = ref_mv->as_mv.row;
+    ref_col = ref_mv->as_mv.col;
+    *num00 = 0;
+    best_mv->as_mv.row = ref_row;
+    best_mv->as_mv.col = ref_col;
+
+    /* Work out the start point for the search */
+    in_what = (unsigned char *)(base_pre + d->offset + (ref_row * pre_stride) + ref_col);
+    best_address = in_what;
+
+    /* Check the starting position */
+    bestsad = fn_ptr->sdf(what, what_stride, in_what, in_what_stride)
+            + mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
+
+    /* search_param determines the length of the initial step and hence the
+     * number of iterations 0 = initial step (MAX_FIRST_STEP) pel : 1 =
+     * (MAX_FIRST_STEP/2) pel, 2 = (MAX_FIRST_STEP/4) pel... etc.
+     */
+    ss = &x->ss[search_param * x->searches_per_step];
+    tot_steps = (x->ss_count / x->searches_per_step) - search_param;
+
+    i = 1;
+
+    for (step = 0; step < tot_steps ; step++)
+    {
+        int all_in = 1, t;
+
+        /* To know if all neighbor points are within the bounds, 4 bounds
+         * checking are enough instead of checking 4 bounds for each
+         * points.
+         */
+        all_in &= ((best_mv->as_mv.row + ss[i].mv.row)> x->mv_row_min);
+        all_in &= ((best_mv->as_mv.row + ss[i+1].mv.row) < x->mv_row_max);
+        all_in &= ((best_mv->as_mv.col + ss[i+2].mv.col) > x->mv_col_min);
+        all_in &= ((best_mv->as_mv.col + ss[i+3].mv.col) < x->mv_col_max);
+
+        if (all_in)
+        {
+            unsigned int sad_array[4];
+
+            for (j = 0 ; j < x->searches_per_step ; j += 4)
+            {
+                const unsigned char *block_offset[4];
+
+                for (t = 0; t < 4; t++)
+                    block_offset[t] = ss[i+t].offset + best_address;
+
+                fn_ptr->sdx4df(what, what_stride, block_offset, in_what_stride, sad_array);
+
+                for (t = 0; t < 4; t++, i++)
+                {
+                    if (sad_array[t] < bestsad)
+                    {
+                        this_mv.as_mv.row = best_mv->as_mv.row + ss[i].mv.row;
+                        this_mv.as_mv.col = best_mv->as_mv.col + ss[i].mv.col;
+                        sad_array[t] += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                                       mvsadcost, sad_per_bit);
+
+                        if (sad_array[t] < bestsad)
+                        {
+                            bestsad = sad_array[t];
+                            best_site = i;
+                        }
+                    }
+                }
+            }
+        }
+        else
+        {
+            for (j = 0 ; j < x->searches_per_step ; j++)
+            {
+                /* Trap illegal vectors */
+                this_row_offset = best_mv->as_mv.row + ss[i].mv.row;
+                this_col_offset = best_mv->as_mv.col + ss[i].mv.col;
+
+                if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
+                (this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max))
+                {
+                    check_here = ss[i].offset + best_address;
+                    thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride);
+
+                    if (thissad < bestsad)
+                    {
+                        this_mv.as_mv.row = this_row_offset;
+                        this_mv.as_mv.col = this_col_offset;
+                        thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                                  mvsadcost, sad_per_bit);
+
+                        if (thissad < bestsad)
+                        {
+                            bestsad = thissad;
+                            best_site = i;
+                        }
+                    }
+                }
+                i++;
+            }
+        }
+
+        if (best_site != last_site)
+        {
+            best_mv->as_mv.row += ss[best_site].mv.row;
+            best_mv->as_mv.col += ss[best_site].mv.col;
+            best_address += ss[best_site].offset;
+            last_site = best_site;
+        }
+        else if (best_address == in_what)
+            (*num00)++;
+    }
+
+    this_mv.as_mv.row = best_mv->as_mv.row * 8;
+    this_mv.as_mv.col = best_mv->as_mv.col * 8;
+
+    return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+int vp8_full_search_sad_c(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
+                        int sad_per_bit, int distance,
+                        vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
+                        int_mv *center_mv)
+{
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    unsigned char *in_what;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int in_what_stride = pre_stride;
+    int mv_stride = pre_stride;
+    unsigned char *bestaddress;
+    int_mv *best_mv = &d->bmi.mv;
+    int_mv this_mv;
+    unsigned int bestsad;
+    unsigned int thissad;
+    int r, c;
+
+    unsigned char *check_here;
+
+    int ref_row = ref_mv->as_mv.row;
+    int ref_col = ref_mv->as_mv.col;
+
+    int row_min = ref_row - distance;
+    int row_max = ref_row + distance;
+    int col_min = ref_col - distance;
+    int col_max = ref_col + distance;
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    /* Work out the mid point for the search */
+    in_what = base_pre + d->offset;
+    bestaddress = in_what + (ref_row * pre_stride) + ref_col;
+
+    best_mv->as_mv.row = ref_row;
+    best_mv->as_mv.col = ref_col;
+
+    /* Baseline value at the centre */
+    bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride)
+            + mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
+
+    /* Apply further limits to prevent us looking using vectors that
+     * stretch beyiond the UMV border
+     */
+    if (col_min < x->mv_col_min)
+        col_min = x->mv_col_min;
+
+    if (col_max > x->mv_col_max)
+        col_max = x->mv_col_max;
+
+    if (row_min < x->mv_row_min)
+        row_min = x->mv_row_min;
+
+    if (row_max > x->mv_row_max)
+        row_max = x->mv_row_max;
+
+    for (r = row_min; r < row_max ; r++)
+    {
+        this_mv.as_mv.row = r;
+        check_here = r * mv_stride + in_what + col_min;
+
+        for (c = col_min; c < col_max; c++)
+        {
+            thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride);
+
+            this_mv.as_mv.col = c;
+            thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                      mvsadcost, sad_per_bit);
+
+            if (thissad < bestsad)
+            {
+                bestsad = thissad;
+                best_mv->as_mv.row = r;
+                best_mv->as_mv.col = c;
+                bestaddress = check_here;
+            }
+
+            check_here++;
+        }
+    }
+
+    this_mv.as_mv.row = best_mv->as_mv.row << 3;
+    this_mv.as_mv.col = best_mv->as_mv.col << 3;
+
+    return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+int vp8_full_search_sadx3(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
+                          int sad_per_bit, int distance,
+                          vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
+                          int_mv *center_mv)
+{
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    unsigned char *in_what;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int in_what_stride = pre_stride;
+    int mv_stride = pre_stride;
+    unsigned char *bestaddress;
+    int_mv *best_mv = &d->bmi.mv;
+    int_mv this_mv;
+    unsigned int bestsad;
+    unsigned int thissad;
+    int r, c;
+
+    unsigned char *check_here;
+
+    int ref_row = ref_mv->as_mv.row;
+    int ref_col = ref_mv->as_mv.col;
+
+    int row_min = ref_row - distance;
+    int row_max = ref_row + distance;
+    int col_min = ref_col - distance;
+    int col_max = ref_col + distance;
+
+    unsigned int sad_array[3];
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    /* Work out the mid point for the search */
+    in_what = base_pre + d->offset;
+    bestaddress = in_what + (ref_row * pre_stride) + ref_col;
+
+    best_mv->as_mv.row = ref_row;
+    best_mv->as_mv.col = ref_col;
+
+    /* Baseline value at the centre */
+    bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride)
+            + mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
+
+    /* Apply further limits to prevent us looking using vectors that stretch
+     * beyond the UMV border
+     */
+    if (col_min < x->mv_col_min)
+        col_min = x->mv_col_min;
+
+    if (col_max > x->mv_col_max)
+        col_max = x->mv_col_max;
+
+    if (row_min < x->mv_row_min)
+        row_min = x->mv_row_min;
+
+    if (row_max > x->mv_row_max)
+        row_max = x->mv_row_max;
+
+    for (r = row_min; r < row_max ; r++)
+    {
+        this_mv.as_mv.row = r;
+        check_here = r * mv_stride + in_what + col_min;
+        c = col_min;
+
+        while ((c + 2) < col_max)
+        {
+            int i;
+
+            fn_ptr->sdx3f(what, what_stride, check_here, in_what_stride, sad_array);
+
+            for (i = 0; i < 3; i++)
+            {
+                thissad = sad_array[i];
+
+                if (thissad < bestsad)
+                {
+                    this_mv.as_mv.col = c;
+                    thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                              mvsadcost, sad_per_bit);
+
+                    if (thissad < bestsad)
+                    {
+                        bestsad = thissad;
+                        best_mv->as_mv.row = r;
+                        best_mv->as_mv.col = c;
+                        bestaddress = check_here;
+                    }
+                }
+
+                check_here++;
+                c++;
+            }
+        }
+
+        while (c < col_max)
+        {
+            thissad = fn_ptr->sdf(what, what_stride, check_here, in_what_stride);
+
+            if (thissad < bestsad)
+            {
+                this_mv.as_mv.col = c;
+                thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                          mvsadcost, sad_per_bit);
+
+                if (thissad < bestsad)
+                {
+                    bestsad = thissad;
+                    best_mv->as_mv.row = r;
+                    best_mv->as_mv.col = c;
+                    bestaddress = check_here;
+                }
+            }
+
+            check_here ++;
+            c ++;
+        }
+
+    }
+
+    this_mv.as_mv.row = best_mv->as_mv.row << 3;
+    this_mv.as_mv.col = best_mv->as_mv.col << 3;
+
+    return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+int vp8_full_search_sadx8(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
+                          int sad_per_bit, int distance,
+                          vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
+                          int_mv *center_mv)
+{
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    unsigned char *in_what;
+    int in_what_stride = pre_stride;
+    int mv_stride = pre_stride;
+    unsigned char *bestaddress;
+    int_mv *best_mv = &d->bmi.mv;
+    int_mv this_mv;
+    unsigned int bestsad;
+    unsigned int thissad;
+    int r, c;
+
+    unsigned char *check_here;
+
+    int ref_row = ref_mv->as_mv.row;
+    int ref_col = ref_mv->as_mv.col;
+
+    int row_min = ref_row - distance;
+    int row_max = ref_row + distance;
+    int col_min = ref_col - distance;
+    int col_max = ref_col + distance;
+
+    // TODO(johannkoenig): check if this alignment is necessary.
+    DECLARE_ALIGNED(16, unsigned int, sad_array8[8]);
+    unsigned int sad_array[3];
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    /* Work out the mid point for the search */
+    in_what = base_pre + d->offset;
+    bestaddress = in_what + (ref_row * pre_stride) + ref_col;
+
+    best_mv->as_mv.row = ref_row;
+    best_mv->as_mv.col = ref_col;
+
+    /* Baseline value at the centre */
+    bestsad = fn_ptr->sdf(what, what_stride, bestaddress, in_what_stride)
+            + mvsad_err_cost(best_mv, &fcenter_mv, mvsadcost, sad_per_bit);
+
+    /* Apply further limits to prevent us looking using vectors that stretch
+     * beyond the UMV border
+     */
+    if (col_min < x->mv_col_min)
+        col_min = x->mv_col_min;
+
+    if (col_max > x->mv_col_max)
+        col_max = x->mv_col_max;
+
+    if (row_min < x->mv_row_min)
+        row_min = x->mv_row_min;
+
+    if (row_max > x->mv_row_max)
+        row_max = x->mv_row_max;
+
+    for (r = row_min; r < row_max ; r++)
+    {
+        this_mv.as_mv.row = r;
+        check_here = r * mv_stride + in_what + col_min;
+        c = col_min;
+
+        while ((c + 7) < col_max)
+        {
+            int i;
+
+            fn_ptr->sdx8f(what, what_stride, check_here, in_what_stride, sad_array8);
+
+            for (i = 0; i < 8; i++)
+            {
+                thissad = sad_array8[i];
+
+                if (thissad < bestsad)
+                {
+                    this_mv.as_mv.col = c;
+                    thissad += mvsad_err_cost(&this_mv, &fcenter_mv,
+                                              mvsadcost, sad_per_bit);
+
+                    if (thissad < bestsad)
+                    {
+                        bestsad = thissad;
+                        best_mv->as_mv.row = r;
+                        best_mv->as_mv.col = c;
+                        bestaddress = check_here;
+                    }
+                }
+
+                check_here++;
+                c++;
+            }
+        }
+
+        while ((c + 2) < col_max)
+        {
+            int i;
+
+            fn_ptr->sdx3f(what, what_stride, check_here , in_what_stride, sad_array);
+
+            for (i = 0; i < 3; i++)
+            {
+                thissad = sad_array[i];
+
+                if (thissad < bestsad)
+                {
+                    this_mv.as_mv.col = c;
+                    thissad  += mvsad_err_cost(&this_mv, &fcenter_mv,
+                        mvsadcost, sad_per_bit);
+
+                    if (thissad < bestsad)
+                    {
+                        bestsad = thissad;
+                        best_mv->as_mv.row = r;
+                        best_mv->as_mv.col = c;
+                        bestaddress = check_here;
+                    }
+                }
+
+                check_here++;
+                c++;
+            }
+        }
+
+        while (c < col_max)
+        {
+            thissad = fn_ptr->sdf(what, what_stride, check_here , in_what_stride);
+
+            if (thissad < bestsad)
+            {
+                this_mv.as_mv.col = c;
+                thissad  += mvsad_err_cost(&this_mv, &fcenter_mv,
+                    mvsadcost, sad_per_bit);
+
+                if (thissad < bestsad)
+                {
+                    bestsad = thissad;
+                    best_mv->as_mv.row = r;
+                    best_mv->as_mv.col = c;
+                    bestaddress = check_here;
+                }
+            }
+
+            check_here ++;
+            c ++;
+        }
+    }
+
+    this_mv.as_mv.row = best_mv->as_mv.row * 8;
+    this_mv.as_mv.col = best_mv->as_mv.col * 8;
+
+    return fn_ptr->vf(what, what_stride, bestaddress, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+int vp8_refining_search_sad_c(MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *ref_mv,
+                            int error_per_bit, int search_range,
+                            vp8_variance_fn_ptr_t *fn_ptr, int *mvcost[2],
+                            int_mv *center_mv)
+{
+    MV neighbors[4] = {{-1, 0}, {0, -1}, {0, 1}, {1, 0}};
+    int i, j;
+    short this_row_offset, this_col_offset;
+
+    int what_stride = b->src_stride;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int in_what_stride = pre_stride;
+    unsigned char *what = (*(b->base_src) + b->src);
+    unsigned char *best_address = (unsigned char *)(base_pre + d->offset +
+        (ref_mv->as_mv.row * pre_stride) + ref_mv->as_mv.col);
+    unsigned char *check_here;
+    int_mv this_mv;
+    unsigned int bestsad;
+    unsigned int thissad;
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    bestsad = fn_ptr->sdf(what, what_stride, best_address, in_what_stride)
+            + mvsad_err_cost(ref_mv, &fcenter_mv, mvsadcost, error_per_bit);
+
+    for (i=0; i<search_range; i++)
+    {
+        int best_site = -1;
+
+        for (j = 0 ; j < 4 ; j++)
+        {
+            this_row_offset = ref_mv->as_mv.row + neighbors[j].row;
+            this_col_offset = ref_mv->as_mv.col + neighbors[j].col;
+
+            if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
+            (this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max))
+            {
+                check_here = (neighbors[j].row)*in_what_stride + neighbors[j].col + best_address;
+                thissad = fn_ptr->sdf(what, what_stride, check_here , in_what_stride);
+
+                if (thissad < bestsad)
+                {
+                    this_mv.as_mv.row = this_row_offset;
+                    this_mv.as_mv.col = this_col_offset;
+                    thissad += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, error_per_bit);
+
+                    if (thissad < bestsad)
+                    {
+                        bestsad = thissad;
+                        best_site = j;
+                    }
+                }
+            }
+        }
+
+        if (best_site == -1)
+            break;
+        else
+        {
+            ref_mv->as_mv.row += neighbors[best_site].row;
+            ref_mv->as_mv.col += neighbors[best_site].col;
+            best_address += (neighbors[best_site].row)*in_what_stride + neighbors[best_site].col;
+        }
+    }
+
+    this_mv.as_mv.row = ref_mv->as_mv.row << 3;
+    this_mv.as_mv.col = ref_mv->as_mv.col << 3;
+
+    return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+int vp8_refining_search_sadx4(MACROBLOCK *x, BLOCK *b, BLOCKD *d,
+                              int_mv *ref_mv, int error_per_bit,
+                              int search_range, vp8_variance_fn_ptr_t *fn_ptr,
+                              int *mvcost[2], int_mv *center_mv)
+{
+    MV neighbors[4] = {{-1, 0}, {0, -1}, {0, 1}, {1, 0}};
+    int i, j;
+    short this_row_offset, this_col_offset;
+
+    int what_stride = b->src_stride;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int in_what_stride = pre_stride;
+    unsigned char *what = (*(b->base_src) + b->src);
+    unsigned char *best_address = (unsigned char *)(base_pre + d->offset +
+        (ref_mv->as_mv.row * pre_stride) + ref_mv->as_mv.col);
+    unsigned char *check_here;
+    int_mv this_mv;
+    unsigned int bestsad;
+    unsigned int thissad;
+
+    int *mvsadcost[2];
+    int_mv fcenter_mv;
+
+    mvsadcost[0] = x->mvsadcost[0];
+    mvsadcost[1] = x->mvsadcost[1];
+    fcenter_mv.as_mv.row = center_mv->as_mv.row >> 3;
+    fcenter_mv.as_mv.col = center_mv->as_mv.col >> 3;
+
+    bestsad = fn_ptr->sdf(what, what_stride, best_address, in_what_stride)
+            + mvsad_err_cost(ref_mv, &fcenter_mv, mvsadcost, error_per_bit);
+
+    for (i=0; i<search_range; i++)
+    {
+        int best_site = -1;
+        int all_in = 1;
+
+        all_in &= ((ref_mv->as_mv.row - 1) > x->mv_row_min);
+        all_in &= ((ref_mv->as_mv.row + 1) < x->mv_row_max);
+        all_in &= ((ref_mv->as_mv.col - 1) > x->mv_col_min);
+        all_in &= ((ref_mv->as_mv.col + 1) < x->mv_col_max);
+
+        if(all_in)
+        {
+            unsigned int sad_array[4];
+            const unsigned char *block_offset[4];
+            block_offset[0] = best_address - in_what_stride;
+            block_offset[1] = best_address - 1;
+            block_offset[2] = best_address + 1;
+            block_offset[3] = best_address + in_what_stride;
+
+            fn_ptr->sdx4df(what, what_stride, block_offset, in_what_stride, sad_array);
+
+            for (j = 0; j < 4; j++)
+            {
+                if (sad_array[j] < bestsad)
+                {
+                    this_mv.as_mv.row = ref_mv->as_mv.row + neighbors[j].row;
+                    this_mv.as_mv.col = ref_mv->as_mv.col + neighbors[j].col;
+                    sad_array[j] += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, error_per_bit);
+
+                    if (sad_array[j] < bestsad)
+                    {
+                        bestsad = sad_array[j];
+                        best_site = j;
+                    }
+                }
+            }
+        }
+        else
+        {
+            for (j = 0 ; j < 4 ; j++)
+            {
+                this_row_offset = ref_mv->as_mv.row + neighbors[j].row;
+                this_col_offset = ref_mv->as_mv.col + neighbors[j].col;
+
+                if ((this_col_offset > x->mv_col_min) && (this_col_offset < x->mv_col_max) &&
+                (this_row_offset > x->mv_row_min) && (this_row_offset < x->mv_row_max))
+                {
+                    check_here = (neighbors[j].row)*in_what_stride + neighbors[j].col + best_address;
+                    thissad = fn_ptr->sdf(what, what_stride, check_here , in_what_stride);
+
+                    if (thissad < bestsad)
+                    {
+                        this_mv.as_mv.row = this_row_offset;
+                        this_mv.as_mv.col = this_col_offset;
+                        thissad += mvsad_err_cost(&this_mv, &fcenter_mv, mvsadcost, error_per_bit);
+
+                        if (thissad < bestsad)
+                        {
+                            bestsad = thissad;
+                            best_site = j;
+                        }
+                    }
+                }
+            }
+        }
+
+        if (best_site == -1)
+            break;
+        else
+        {
+            ref_mv->as_mv.row += neighbors[best_site].row;
+            ref_mv->as_mv.col += neighbors[best_site].col;
+            best_address += (neighbors[best_site].row)*in_what_stride + neighbors[best_site].col;
+        }
+    }
+
+    this_mv.as_mv.row = ref_mv->as_mv.row * 8;
+    this_mv.as_mv.col = ref_mv->as_mv.col * 8;
+
+    return fn_ptr->vf(what, what_stride, best_address, in_what_stride, &thissad)
+           + mv_err_cost(&this_mv, center_mv, mvcost, x->errorperbit);
+}
+
+#ifdef VP8_ENTROPY_STATS
+void print_mode_context(void)
+{
+    FILE *f = fopen("modecont.c", "w");
+    int i, j;
+
+    fprintf(f, "#include \"entropy.h\"\n");
+    fprintf(f, "const int vp8_mode_contexts[6][4] =\n");
+    fprintf(f, "{\n");
+
+    for (j = 0; j < 6; j++)
+    {
+        fprintf(f, "  { /* %d */\n", j);
+        fprintf(f, "    ");
+
+        for (i = 0; i < 4; i++)
+        {
+            int overal_prob;
+            int this_prob;
+            int count;
+
+            /* Overall probs */
+            count = mv_mode_cts[i][0] + mv_mode_cts[i][1];
+
+            if (count)
+                overal_prob = 256 * mv_mode_cts[i][0] / count;
+            else
+                overal_prob = 128;
+
+            if (overal_prob == 0)
+                overal_prob = 1;
+
+            /* context probs */
+            count = mv_ref_ct[j][i][0] + mv_ref_ct[j][i][1];
+
+            if (count)
+                this_prob = 256 * mv_ref_ct[j][i][0] / count;
+            else
+                this_prob = 128;
+
+            if (this_prob == 0)
+                this_prob = 1;
+
+            fprintf(f, "%5d, ", this_prob);
+        }
+
+        fprintf(f, "  },\n");
+    }
+
+    fprintf(f, "};\n");
+    fclose(f);
+}
+
+/* MV ref count VP8_ENTROPY_STATS stats code */
+#ifdef VP8_ENTROPY_STATS
+void init_mv_ref_counts()
+{
+    memset(mv_ref_ct, 0, sizeof(mv_ref_ct));
+    memset(mv_mode_cts, 0, sizeof(mv_mode_cts));
+}
+
+void accum_mv_refs(MB_PREDICTION_MODE m, const int ct[4])
+{
+    if (m == ZEROMV)
+    {
+        ++mv_ref_ct [ct[0]] [0] [0];
+        ++mv_mode_cts[0][0];
+    }
+    else
+    {
+        ++mv_ref_ct [ct[0]] [0] [1];
+        ++mv_mode_cts[0][1];
+
+        if (m == NEARESTMV)
+        {
+            ++mv_ref_ct [ct[1]] [1] [0];
+            ++mv_mode_cts[1][0];
+        }
+        else
+        {
+            ++mv_ref_ct [ct[1]] [1] [1];
+            ++mv_mode_cts[1][1];
+
+            if (m == NEARMV)
+            {
+                ++mv_ref_ct [ct[2]] [2] [0];
+                ++mv_mode_cts[2][0];
+            }
+            else
+            {
+                ++mv_ref_ct [ct[2]] [2] [1];
+                ++mv_mode_cts[2][1];
+
+                if (m == NEWMV)
+                {
+                    ++mv_ref_ct [ct[3]] [3] [0];
+                    ++mv_mode_cts[3][0];
+                }
+                else
+                {
+                    ++mv_ref_ct [ct[3]] [3] [1];
+                    ++mv_mode_cts[3][1];
+                }
+            }
+        }
+    }
+}
+
+#endif/* END MV ref count VP8_ENTROPY_STATS stats code */
+
+#endif
diff --git a/media/libvpx/vp8/encoder/mcomp.h b/media/libvpx/vp8/encoder/mcomp.h
new file mode 100644
index 000000000..f284f7c38
--- /dev/null
+++ b/media/libvpx/vp8/encoder/mcomp.h
@@ -0,0 +1,115 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_MCOMP_H_
+#define VP8_ENCODER_MCOMP_H_
+
+#include "block.h"
+#include "vp8/common/variance.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef VP8_ENTROPY_STATS
+extern void init_mv_ref_counts();
+extern void accum_mv_refs(MB_PREDICTION_MODE, const int near_mv_ref_cts[4]);
+#endif
+
+
+/* The maximum number of steps in a step search given the largest allowed
+ * initial step
+ */
+#define MAX_MVSEARCH_STEPS 8
+
+/* Max full pel mv specified in 1 pel units */
+#define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS)) - 1)
+
+/* Maximum size of the first step in full pel units */
+#define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))
+
+extern void print_mode_context(void);
+extern int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight);
+extern void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride);
+extern void vp8_init3smotion_compensation(MACROBLOCK *x,  int stride);
+
+
+extern int vp8_hex_search
+(
+    MACROBLOCK *x,
+    BLOCK *b,
+    BLOCKD *d,
+    int_mv *ref_mv,
+    int_mv *best_mv,
+    int search_param,
+    int error_per_bit,
+    const vp8_variance_fn_ptr_t *vf,
+    int *mvsadcost[2],
+    int *mvcost[2],
+    int_mv *center_mv
+);
+
+typedef int (fractional_mv_step_fp)
+    (MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *bestmv, int_mv *ref_mv,
+     int error_per_bit, const vp8_variance_fn_ptr_t *vfp, int *mvcost[2],
+     int *distortion, unsigned int *sse);
+
+extern fractional_mv_step_fp vp8_find_best_sub_pixel_step_iteratively;
+extern fractional_mv_step_fp vp8_find_best_sub_pixel_step;
+extern fractional_mv_step_fp vp8_find_best_half_pixel_step;
+extern fractional_mv_step_fp vp8_skip_fractional_mv_step;
+
+typedef int (*vp8_full_search_fn_t)
+    (
+     MACROBLOCK *x,
+     BLOCK *b,
+     BLOCKD *d,
+     int_mv *ref_mv,
+     int sad_per_bit,
+     int distance,
+     vp8_variance_fn_ptr_t *fn_ptr,
+     int *mvcost[2],
+     int_mv *center_mv
+    );
+
+typedef int (*vp8_refining_search_fn_t)
+    (
+     MACROBLOCK *x,
+     BLOCK *b,
+     BLOCKD *d,
+     int_mv *ref_mv,
+     int sad_per_bit,
+     int distance,
+     vp8_variance_fn_ptr_t *fn_ptr,
+     int *mvcost[2],
+     int_mv *center_mv
+    );
+
+typedef int (*vp8_diamond_search_fn_t)
+    (
+     MACROBLOCK *x,
+     BLOCK *b,
+     BLOCKD *d,
+     int_mv *ref_mv,
+     int_mv *best_mv,
+     int search_param,
+     int sad_per_bit,
+     int *num00,
+     vp8_variance_fn_ptr_t *fn_ptr,
+     int *mvcost[2],
+     int_mv *center_mv
+    );
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_MCOMP_H_
diff --git a/media/libvpx/vp8/encoder/modecosts.c b/media/libvpx/vp8/encoder/modecosts.c
new file mode 100644
index 000000000..ad0e9308d
--- /dev/null
+++ b/media/libvpx/vp8/encoder/modecosts.c
@@ -0,0 +1,55 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vp8/common/blockd.h"
+#include "modecosts.h"
+#include "onyx_int.h"
+#include "treewriter.h"
+#include "vp8/common/entropymode.h"
+
+
+void vp8_init_mode_costs(VP8_COMP *c)
+{
+    VP8_COMMON *x = &c->common;
+    struct rd_costs_struct *rd_costs = &c->rd_costs;
+
+    {
+        const vp8_tree_p T = vp8_bmode_tree;
+
+        int i = 0;
+
+        do
+        {
+            int j = 0;
+
+            do
+            {
+                vp8_cost_tokens(rd_costs->bmode_costs[i][j],
+                                vp8_kf_bmode_prob[i][j], T);
+            }
+            while (++j < VP8_BINTRAMODES);
+        }
+        while (++i < VP8_BINTRAMODES);
+
+        vp8_cost_tokens(rd_costs->inter_bmode_costs, x->fc.bmode_prob, T);
+    }
+    vp8_cost_tokens(rd_costs->inter_bmode_costs, x->fc.sub_mv_ref_prob,
+                    vp8_sub_mv_ref_tree);
+
+    vp8_cost_tokens(rd_costs->mbmode_cost[1], x->fc.ymode_prob, vp8_ymode_tree);
+    vp8_cost_tokens(rd_costs->mbmode_cost[0], vp8_kf_ymode_prob,
+                    vp8_kf_ymode_tree);
+
+    vp8_cost_tokens(rd_costs->intra_uv_mode_cost[1], x->fc.uv_mode_prob,
+                    vp8_uv_mode_tree);
+    vp8_cost_tokens(rd_costs->intra_uv_mode_cost[0], vp8_kf_uv_mode_prob,
+                    vp8_uv_mode_tree);
+}
diff --git a/media/libvpx/vp8/encoder/modecosts.h b/media/libvpx/vp8/encoder/modecosts.h
new file mode 100644
index 000000000..9871bfffd
--- /dev/null
+++ b/media/libvpx/vp8/encoder/modecosts.h
@@ -0,0 +1,27 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_MODECOSTS_H_
+#define VP8_ENCODER_MODECOSTS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct VP8_COMP;
+
+void vp8_init_mode_costs(struct VP8_COMP *x);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_MODECOSTS_H_
diff --git a/media/libvpx/vp8/encoder/mr_dissim.c b/media/libvpx/vp8/encoder/mr_dissim.c
new file mode 100644
index 000000000..8d96445f5
--- /dev/null
+++ b/media/libvpx/vp8/encoder/mr_dissim.c
@@ -0,0 +1,237 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <limits.h>
+#include "vpx_config.h"
+#include "onyx_int.h"
+#include "mr_dissim.h"
+#include "vpx_mem/vpx_mem.h"
+#include "rdopt.h"
+#include "vp8/common/common.h"
+
+void vp8_cal_low_res_mb_cols(VP8_COMP *cpi)
+{
+    int low_res_w;
+
+    /* Support arbitrary down-sampling factor */
+    unsigned int iw = cpi->oxcf.Width*cpi->oxcf.mr_down_sampling_factor.den
+                      + cpi->oxcf.mr_down_sampling_factor.num - 1;
+
+    low_res_w = iw/cpi->oxcf.mr_down_sampling_factor.num;
+    cpi->mr_low_res_mb_cols = ((low_res_w + 15) >> 4);
+}
+
+#define GET_MV(x)    \
+if(x->mbmi.ref_frame !=INTRA_FRAME)   \
+{   \
+    mvx[cnt] = x->mbmi.mv.as_mv.row;  \
+    mvy[cnt] = x->mbmi.mv.as_mv.col;  \
+    cnt++;    \
+}
+
+#define GET_MV_SIGN(x)    \
+if(x->mbmi.ref_frame !=INTRA_FRAME)   \
+{   \
+    mvx[cnt] = x->mbmi.mv.as_mv.row;  \
+    mvy[cnt] = x->mbmi.mv.as_mv.col;  \
+    if (cm->ref_frame_sign_bias[x->mbmi.ref_frame]  \
+        != cm->ref_frame_sign_bias[tmp->mbmi.ref_frame])  \
+    {  \
+        mvx[cnt] *= -1;   \
+        mvy[cnt] *= -1;   \
+    }  \
+    cnt++;  \
+}
+
+void vp8_cal_dissimilarity(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+    int i;
+
+    /* Note: The first row & first column in mip are outside the frame, which
+     * were initialized to all 0.(ref_frame, mode, mv...)
+     * Their ref_frame = 0 means they won't be counted in the following
+     * calculation.
+     */
+    if (cpi->oxcf.mr_total_resolutions >1
+        && cpi->oxcf.mr_encoder_id < (cpi->oxcf.mr_total_resolutions - 1))
+    {
+        /* Store info for show/no-show frames for supporting alt_ref.
+         * If parent frame is alt_ref, child has one too.
+         */
+        LOWER_RES_FRAME_INFO* store_info
+                      = (LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info;
+
+        store_info->frame_type = cm->frame_type;
+
+        if(cm->frame_type != KEY_FRAME)
+        {
+            store_info->is_frame_dropped = 0;
+            for (i = 1; i < MAX_REF_FRAMES; i++)
+                store_info->low_res_ref_frames[i] = cpi->current_ref_frames[i];
+        }
+
+        if(cm->frame_type != KEY_FRAME)
+        {
+            int mb_row;
+            int mb_col;
+            /* Point to beginning of allocated MODE_INFO arrays. */
+            MODE_INFO *tmp = cm->mip + cm->mode_info_stride;
+            LOWER_RES_MB_INFO* store_mode_info = store_info->mb_info;
+
+            for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
+            {
+                tmp++;
+                for (mb_col = 0; mb_col < cm->mb_cols; mb_col ++)
+                {
+                    int dissim = INT_MAX;
+
+                    if(tmp->mbmi.ref_frame !=INTRA_FRAME)
+                    {
+                        int              mvx[8];
+                        int              mvy[8];
+                        int              mmvx;
+                        int              mmvy;
+                        int              cnt=0;
+                        const MODE_INFO *here = tmp;
+                        const MODE_INFO *above = here - cm->mode_info_stride;
+                        const MODE_INFO *left = here - 1;
+                        const MODE_INFO *aboveleft = above - 1;
+                        const MODE_INFO *aboveright = NULL;
+                        const MODE_INFO *right = NULL;
+                        const MODE_INFO *belowleft = NULL;
+                        const MODE_INFO *below = NULL;
+                        const MODE_INFO *belowright = NULL;
+
+                        /* If alternate reference frame is used, we have to
+                         * check sign of MV. */
+                        if(cpi->oxcf.play_alternate)
+                        {
+                            /* Gather mv of neighboring MBs */
+                            GET_MV_SIGN(above)
+                            GET_MV_SIGN(left)
+                            GET_MV_SIGN(aboveleft)
+
+                            if(mb_col < (cm->mb_cols-1))
+                            {
+                                right = here + 1;
+                                aboveright = above + 1;
+                                GET_MV_SIGN(right)
+                                GET_MV_SIGN(aboveright)
+                            }
+
+                            if(mb_row < (cm->mb_rows-1))
+                            {
+                                below = here + cm->mode_info_stride;
+                                belowleft = below - 1;
+                                GET_MV_SIGN(below)
+                                GET_MV_SIGN(belowleft)
+                            }
+
+                            if(mb_col < (cm->mb_cols-1)
+                                && mb_row < (cm->mb_rows-1))
+                            {
+                                belowright = below + 1;
+                                GET_MV_SIGN(belowright)
+                            }
+                        }else
+                        {
+                            /* No alt_ref and gather mv of neighboring MBs */
+                            GET_MV(above)
+                            GET_MV(left)
+                            GET_MV(aboveleft)
+
+                            if(mb_col < (cm->mb_cols-1))
+                            {
+                                right = here + 1;
+                                aboveright = above + 1;
+                                GET_MV(right)
+                                GET_MV(aboveright)
+                            }
+
+                            if(mb_row < (cm->mb_rows-1))
+                            {
+                                below = here + cm->mode_info_stride;
+                                belowleft = below - 1;
+                                GET_MV(below)
+                                GET_MV(belowleft)
+                            }
+
+                            if(mb_col < (cm->mb_cols-1)
+                                && mb_row < (cm->mb_rows-1))
+                            {
+                                belowright = below + 1;
+                                GET_MV(belowright)
+                            }
+                        }
+
+                        if (cnt > 0)
+                        {
+                            int max_mvx = mvx[0];
+                            int min_mvx = mvx[0];
+                            int max_mvy = mvy[0];
+                            int min_mvy = mvy[0];
+                            int i;
+
+                            if (cnt > 1)
+                            {
+                                for (i=1; i< cnt; i++)
+                                {
+                                    if (mvx[i] > max_mvx) max_mvx = mvx[i];
+                                    else if (mvx[i] < min_mvx) min_mvx = mvx[i];
+                                    if (mvy[i] > max_mvy) max_mvy = mvy[i];
+                                    else if (mvy[i] < min_mvy) min_mvy = mvy[i];
+                                }
+                            }
+
+                            mmvx = MAX(abs(min_mvx - here->mbmi.mv.as_mv.row),
+                                       abs(max_mvx - here->mbmi.mv.as_mv.row));
+                            mmvy = MAX(abs(min_mvy - here->mbmi.mv.as_mv.col),
+                                       abs(max_mvy - here->mbmi.mv.as_mv.col));
+                            dissim = MAX(mmvx, mmvy);
+                        }
+                    }
+
+                    /* Store mode info for next resolution encoding */
+                    store_mode_info->mode = tmp->mbmi.mode;
+                    store_mode_info->ref_frame = tmp->mbmi.ref_frame;
+                    store_mode_info->mv.as_int = tmp->mbmi.mv.as_int;
+                    store_mode_info->dissim = dissim;
+                    tmp++;
+                    store_mode_info++;
+                }
+            }
+        }
+    }
+}
+
+/* This function is called only when this frame is dropped at current
+   resolution level. */
+void vp8_store_drop_frame_info(VP8_COMP *cpi)
+{
+    /* If the frame is dropped in lower-resolution encoding, this information
+       is passed to higher resolution level so that the encoder knows there
+       is no mode & motion info available.
+     */
+    if (cpi->oxcf.mr_total_resolutions >1
+        && cpi->oxcf.mr_encoder_id < (cpi->oxcf.mr_total_resolutions - 1))
+    {
+        /* Store info for show/no-show frames for supporting alt_ref.
+         * If parent frame is alt_ref, child has one too.
+         */
+        LOWER_RES_FRAME_INFO* store_info
+                      = (LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info;
+
+        /* Set frame_type to be INTER_FRAME since we won't drop key frame. */
+        store_info->frame_type = INTER_FRAME;
+        store_info->is_frame_dropped = 1;
+    }
+}
diff --git a/media/libvpx/vp8/encoder/mr_dissim.h b/media/libvpx/vp8/encoder/mr_dissim.h
new file mode 100644
index 000000000..5a59ce62a
--- /dev/null
+++ b/media/libvpx/vp8/encoder/mr_dissim.h
@@ -0,0 +1,28 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_MR_DISSIM_H_
+#define VP8_ENCODER_MR_DISSIM_H_
+#include "vpx_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_cal_low_res_mb_cols(VP8_COMP *cpi);
+extern void vp8_cal_dissimilarity(VP8_COMP *cpi);
+extern void vp8_store_drop_frame_info(VP8_COMP *cpi);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_MR_DISSIM_H_
diff --git a/media/libvpx/vp8/encoder/onyx_if.c b/media/libvpx/vp8/encoder/onyx_if.c
new file mode 100644
index 000000000..40e29e191
--- /dev/null
+++ b/media/libvpx/vp8/encoder/onyx_if.c
@@ -0,0 +1,6011 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "./vpx_scale_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "./vp8_rtcd.h"
+#include "vp8/common/onyxc_int.h"
+#include "vp8/common/blockd.h"
+#include "onyx_int.h"
+#include "vp8/common/systemdependent.h"
+#include "quantize.h"
+#include "vp8/common/alloccommon.h"
+#include "mcomp.h"
+#include "firstpass.h"
+#include "vpx/internal/vpx_psnr.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vp8/common/extend.h"
+#include "ratectrl.h"
+#include "vp8/common/quant_common.h"
+#include "segmentation.h"
+#if CONFIG_POSTPROC
+#include "vp8/common/postproc.h"
+#endif
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/swapyv12buffer.h"
+#include "vp8/common/threading.h"
+#include "vpx_ports/vpx_timer.h"
+#if ARCH_ARM
+#include "vpx_ports/arm.h"
+#endif
+#if CONFIG_MULTI_RES_ENCODING
+#include "mr_dissim.h"
+#endif
+#include "encodeframe.h"
+
+#include <math.h>
+#include <stdio.h>
+#include <limits.h>
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+extern int vp8_update_coef_context(VP8_COMP *cpi);
+extern void vp8_update_coef_probs(VP8_COMP *cpi);
+#endif
+
+extern void vp8cx_pick_filter_level_fast(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
+extern void vp8cx_set_alt_lf_level(VP8_COMP *cpi, int filt_val);
+extern void vp8cx_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi);
+
+extern void vp8_deblock_frame(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *post, int filt_lvl, int low_var_thresh, int flag);
+extern void print_parms(VP8_CONFIG *ocf, char *filenam);
+extern unsigned int vp8_get_processor_freq();
+extern void print_tree_update_probs();
+extern int vp8cx_create_encoder_threads(VP8_COMP *cpi);
+extern void vp8cx_remove_encoder_threads(VP8_COMP *cpi);
+
+int vp8_estimate_entropy_savings(VP8_COMP *cpi);
+
+int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest);
+
+extern void vp8_temporal_filter_prepare_c(VP8_COMP *cpi, int distance);
+
+static void set_default_lf_deltas(VP8_COMP *cpi);
+
+extern const int vp8_gf_interval_table[101];
+
+#if CONFIG_INTERNAL_STATS
+#include "math.h"
+
+extern double vp8_calc_ssim
+(
+    YV12_BUFFER_CONFIG *source,
+    YV12_BUFFER_CONFIG *dest,
+    int lumamask,
+    double *weight
+);
+
+
+extern double vp8_calc_ssimg
+(
+    YV12_BUFFER_CONFIG *source,
+    YV12_BUFFER_CONFIG *dest,
+    double *ssim_y,
+    double *ssim_u,
+    double *ssim_v
+);
+
+
+#endif
+
+
+#ifdef OUTPUT_YUV_SRC
+FILE *yuv_file;
+#endif
+#ifdef OUTPUT_YUV_DENOISED
+FILE *yuv_denoised_file;
+#endif
+
+#if 0
+FILE *framepsnr;
+FILE *kf_list;
+FILE *keyfile;
+#endif
+
+#if 0
+extern int skip_true_count;
+extern int skip_false_count;
+#endif
+
+
+#ifdef VP8_ENTROPY_STATS
+extern int intra_mode_stats[10][10][10];
+#endif
+
+#ifdef SPEEDSTATS
+unsigned int frames_at_speed[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+unsigned int tot_pm = 0;
+unsigned int cnt_pm = 0;
+unsigned int tot_ef = 0;
+unsigned int cnt_ef = 0;
+#endif
+
+#ifdef MODE_STATS
+extern unsigned __int64 Sectionbits[50];
+extern int y_modes[5]  ;
+extern int uv_modes[4] ;
+extern int b_modes[10]  ;
+
+extern int inter_y_modes[10] ;
+extern int inter_uv_modes[4] ;
+extern unsigned int inter_b_modes[15];
+#endif
+
+extern const int vp8_bits_per_mb[2][QINDEX_RANGE];
+
+extern const int qrounding_factors[129];
+extern const int qzbin_factors[129];
+extern void vp8cx_init_quantizer(VP8_COMP *cpi);
+extern const int vp8cx_base_skip_false_prob[128];
+
+/* Tables relating active max Q to active min Q */
+static const unsigned char kf_low_motion_minq[QINDEX_RANGE] =
+{
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
+    3,3,3,3,3,3,4,4,4,5,5,5,5,5,6,6,
+    6,6,7,7,8,8,8,8,9,9,10,10,10,10,11,11,
+    11,11,12,12,13,13,13,13,14,14,15,15,15,15,16,16,
+    16,16,17,17,18,18,18,18,19,20,20,21,21,22,23,23
+};
+static const unsigned char kf_high_motion_minq[QINDEX_RANGE] =
+{
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    1,1,1,1,1,1,1,1,2,2,2,2,3,3,3,3,
+    3,3,3,3,4,4,4,4,5,5,5,5,5,5,6,6,
+    6,6,7,7,8,8,8,8,9,9,10,10,10,10,11,11,
+    11,11,12,12,13,13,13,13,14,14,15,15,15,15,16,16,
+    16,16,17,17,18,18,18,18,19,19,20,20,20,20,21,21,
+    21,21,22,22,23,23,24,25,25,26,26,27,28,28,29,30
+};
+static const unsigned char gf_low_motion_minq[QINDEX_RANGE] =
+{
+    0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
+    3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,
+    7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,
+    11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
+    19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
+    27,27,28,28,29,29,30,30,31,31,32,32,33,33,34,34,
+    35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,
+    43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58
+};
+static const unsigned char gf_mid_motion_minq[QINDEX_RANGE] =
+{
+    0,0,0,0,1,1,1,1,1,1,2,2,3,3,3,4,
+    4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
+    9,10,10,10,10,11,11,11,12,12,12,12,13,13,13,14,
+    14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,
+    22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,
+    30,30,31,31,32,32,33,33,34,34,35,35,36,36,37,37,
+    38,39,39,40,40,41,41,42,42,43,43,44,45,46,47,48,
+    49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64
+};
+static const unsigned char gf_high_motion_minq[QINDEX_RANGE] =
+{
+    0,0,0,0,1,1,1,1,1,2,2,2,3,3,3,4,
+    4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
+    9,10,10,10,11,11,12,12,13,13,14,14,15,15,16,16,
+    17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,
+    25,25,26,26,27,27,28,28,29,29,30,30,31,31,32,32,
+    33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,
+    41,41,42,42,43,44,45,46,47,48,49,50,51,52,53,54,
+    55,56,57,58,59,60,62,64,66,68,70,72,74,76,78,80
+};
+static const unsigned char inter_minq[QINDEX_RANGE] =
+{
+    0,0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,
+    9,10,11,11,12,13,13,14,15,15,16,17,17,18,19,20,
+    20,21,22,22,23,24,24,25,26,27,27,28,29,30,30,31,
+    32,33,33,34,35,36,36,37,38,39,39,40,41,42,42,43,
+    44,45,46,46,47,48,49,50,50,51,52,53,54,55,55,56,
+    57,58,59,60,60,61,62,63,64,65,66,67,67,68,69,70,
+    71,72,73,74,75,75,76,77,78,79,80,81,82,83,84,85,
+    86,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100
+};
+
+#ifdef PACKET_TESTING
+extern FILE *vpxlogc;
+#endif
+
+static void save_layer_context(VP8_COMP *cpi)
+{
+    LAYER_CONTEXT *lc = &cpi->layer_context[cpi->current_layer];
+
+    /* Save layer dependent coding state */
+    lc->target_bandwidth                 = cpi->target_bandwidth;
+    lc->starting_buffer_level            = cpi->oxcf.starting_buffer_level;
+    lc->optimal_buffer_level             = cpi->oxcf.optimal_buffer_level;
+    lc->maximum_buffer_size              = cpi->oxcf.maximum_buffer_size;
+    lc->starting_buffer_level_in_ms      = cpi->oxcf.starting_buffer_level_in_ms;
+    lc->optimal_buffer_level_in_ms       = cpi->oxcf.optimal_buffer_level_in_ms;
+    lc->maximum_buffer_size_in_ms        = cpi->oxcf.maximum_buffer_size_in_ms;
+    lc->buffer_level                     = cpi->buffer_level;
+    lc->bits_off_target                  = cpi->bits_off_target;
+    lc->total_actual_bits                = cpi->total_actual_bits;
+    lc->worst_quality                    = cpi->worst_quality;
+    lc->active_worst_quality             = cpi->active_worst_quality;
+    lc->best_quality                     = cpi->best_quality;
+    lc->active_best_quality              = cpi->active_best_quality;
+    lc->ni_av_qi                         = cpi->ni_av_qi;
+    lc->ni_tot_qi                        = cpi->ni_tot_qi;
+    lc->ni_frames                        = cpi->ni_frames;
+    lc->avg_frame_qindex                 = cpi->avg_frame_qindex;
+    lc->rate_correction_factor           = cpi->rate_correction_factor;
+    lc->key_frame_rate_correction_factor = cpi->key_frame_rate_correction_factor;
+    lc->gf_rate_correction_factor        = cpi->gf_rate_correction_factor;
+    lc->zbin_over_quant                  = cpi->mb.zbin_over_quant;
+    lc->inter_frame_target               = cpi->inter_frame_target;
+    lc->total_byte_count                 = cpi->total_byte_count;
+    lc->filter_level                     = cpi->common.filter_level;
+
+    lc->last_frame_percent_intra         = cpi->last_frame_percent_intra;
+
+    memcpy (lc->count_mb_ref_frame_usage,
+            cpi->mb.count_mb_ref_frame_usage,
+            sizeof(cpi->mb.count_mb_ref_frame_usage));
+}
+
+static void restore_layer_context(VP8_COMP *cpi, const int layer)
+{
+    LAYER_CONTEXT *lc = &cpi->layer_context[layer];
+
+    /* Restore layer dependent coding state */
+    cpi->current_layer                    = layer;
+    cpi->target_bandwidth                 = lc->target_bandwidth;
+    cpi->oxcf.target_bandwidth            = lc->target_bandwidth;
+    cpi->oxcf.starting_buffer_level       = lc->starting_buffer_level;
+    cpi->oxcf.optimal_buffer_level        = lc->optimal_buffer_level;
+    cpi->oxcf.maximum_buffer_size         = lc->maximum_buffer_size;
+    cpi->oxcf.starting_buffer_level_in_ms = lc->starting_buffer_level_in_ms;
+    cpi->oxcf.optimal_buffer_level_in_ms  = lc->optimal_buffer_level_in_ms;
+    cpi->oxcf.maximum_buffer_size_in_ms   = lc->maximum_buffer_size_in_ms;
+    cpi->buffer_level                     = lc->buffer_level;
+    cpi->bits_off_target                  = lc->bits_off_target;
+    cpi->total_actual_bits                = lc->total_actual_bits;
+    cpi->active_worst_quality             = lc->active_worst_quality;
+    cpi->active_best_quality              = lc->active_best_quality;
+    cpi->ni_av_qi                         = lc->ni_av_qi;
+    cpi->ni_tot_qi                        = lc->ni_tot_qi;
+    cpi->ni_frames                        = lc->ni_frames;
+    cpi->avg_frame_qindex                 = lc->avg_frame_qindex;
+    cpi->rate_correction_factor           = lc->rate_correction_factor;
+    cpi->key_frame_rate_correction_factor = lc->key_frame_rate_correction_factor;
+    cpi->gf_rate_correction_factor        = lc->gf_rate_correction_factor;
+    cpi->mb.zbin_over_quant                  = lc->zbin_over_quant;
+    cpi->inter_frame_target               = lc->inter_frame_target;
+    cpi->total_byte_count                 = lc->total_byte_count;
+    cpi->common.filter_level              = lc->filter_level;
+
+    cpi->last_frame_percent_intra         = lc->last_frame_percent_intra;
+
+    memcpy (cpi->mb.count_mb_ref_frame_usage,
+            lc->count_mb_ref_frame_usage,
+            sizeof(cpi->mb.count_mb_ref_frame_usage));
+}
+
+static int rescale(int val, int num, int denom)
+{
+    int64_t llnum = num;
+    int64_t llden = denom;
+    int64_t llval = val;
+
+    return (int)(llval * llnum / llden);
+}
+
+static void init_temporal_layer_context(VP8_COMP *cpi,
+                                        VP8_CONFIG *oxcf,
+                                        const int layer,
+                                        double prev_layer_framerate)
+{
+    LAYER_CONTEXT *lc = &cpi->layer_context[layer];
+
+    lc->framerate = cpi->output_framerate / cpi->oxcf.rate_decimator[layer];
+    lc->target_bandwidth = cpi->oxcf.target_bitrate[layer] * 1000;
+
+    lc->starting_buffer_level_in_ms = oxcf->starting_buffer_level;
+    lc->optimal_buffer_level_in_ms  = oxcf->optimal_buffer_level;
+    lc->maximum_buffer_size_in_ms   = oxcf->maximum_buffer_size;
+
+    lc->starting_buffer_level =
+        rescale((int)(oxcf->starting_buffer_level),
+                lc->target_bandwidth, 1000);
+
+    if (oxcf->optimal_buffer_level == 0)
+      lc->optimal_buffer_level = lc->target_bandwidth / 8;
+    else
+      lc->optimal_buffer_level =
+          rescale((int)(oxcf->optimal_buffer_level),
+                  lc->target_bandwidth, 1000);
+
+    if (oxcf->maximum_buffer_size == 0)
+      lc->maximum_buffer_size = lc->target_bandwidth / 8;
+    else
+      lc->maximum_buffer_size =
+          rescale((int)(oxcf->maximum_buffer_size),
+                  lc->target_bandwidth, 1000);
+
+    /* Work out the average size of a frame within this layer */
+    if (layer > 0)
+      lc->avg_frame_size_for_layer =
+          (int)((cpi->oxcf.target_bitrate[layer] -
+                cpi->oxcf.target_bitrate[layer-1]) * 1000 /
+                (lc->framerate - prev_layer_framerate));
+
+     lc->active_worst_quality         = cpi->oxcf.worst_allowed_q;
+     lc->active_best_quality          = cpi->oxcf.best_allowed_q;
+     lc->avg_frame_qindex             = cpi->oxcf.worst_allowed_q;
+
+     lc->buffer_level                 = lc->starting_buffer_level;
+     lc->bits_off_target              = lc->starting_buffer_level;
+
+     lc->total_actual_bits                 = 0;
+     lc->ni_av_qi                          = 0;
+     lc->ni_tot_qi                         = 0;
+     lc->ni_frames                         = 0;
+     lc->rate_correction_factor            = 1.0;
+     lc->key_frame_rate_correction_factor  = 1.0;
+     lc->gf_rate_correction_factor         = 1.0;
+     lc->inter_frame_target                = 0;
+}
+
+// Upon a run-time change in temporal layers, reset the layer context parameters
+// for any "new" layers. For "existing" layers, let them inherit the parameters
+// from the previous layer state (at the same layer #). In future we may want
+// to better map the previous layer state(s) to the "new" ones.
+static void reset_temporal_layer_change(VP8_COMP *cpi,
+                                        VP8_CONFIG *oxcf,
+                                        const int prev_num_layers)
+{
+    int i;
+    double prev_layer_framerate = 0;
+    const int curr_num_layers = cpi->oxcf.number_of_layers;
+    // If the previous state was 1 layer, get current layer context from cpi.
+    // We need this to set the layer context for the new layers below.
+    if (prev_num_layers == 1)
+    {
+        cpi->current_layer = 0;
+        save_layer_context(cpi);
+    }
+    for (i = 0; i < curr_num_layers; i++)
+    {
+        LAYER_CONTEXT *lc = &cpi->layer_context[i];
+        if (i >= prev_num_layers)
+        {
+           init_temporal_layer_context(cpi, oxcf, i, prev_layer_framerate);
+        }
+        // The initial buffer levels are set based on their starting levels.
+        // We could set the buffer levels based on the previous state (normalized
+        // properly by the layer bandwidths) but we would need to keep track of
+        // the previous set of layer bandwidths (i.e., target_bitrate[i])
+        // before the layer change. For now, reset to the starting levels.
+        lc->buffer_level = cpi->oxcf.starting_buffer_level_in_ms *
+                           cpi->oxcf.target_bitrate[i];
+        lc->bits_off_target = lc->buffer_level;
+        // TDOD(marpan): Should we set the rate_correction_factor and
+        // active_worst/best_quality to values derived from the previous layer
+        // state (to smooth-out quality dips/rate fluctuation at transition)?
+
+        // We need to treat the 1 layer case separately: oxcf.target_bitrate[i]
+        // is not set for 1 layer, and the restore_layer_context/save_context()
+        // are not called in the encoding loop, so we need to call it here to
+        // pass the layer context state to |cpi|.
+        if (curr_num_layers == 1)
+        {
+            lc->target_bandwidth = cpi->oxcf.target_bandwidth;
+            lc->buffer_level = cpi->oxcf.starting_buffer_level_in_ms *
+                               lc->target_bandwidth  / 1000;
+            lc->bits_off_target = lc->buffer_level;
+            restore_layer_context(cpi, 0);
+        }
+        prev_layer_framerate = cpi->output_framerate /
+                               cpi->oxcf.rate_decimator[i];
+    }
+}
+
+static void setup_features(VP8_COMP *cpi)
+{
+    // If segmentation enabled set the update flags
+    if ( cpi->mb.e_mbd.segmentation_enabled )
+    {
+        cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+        cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+    }
+    else
+    {
+        cpi->mb.e_mbd.update_mb_segmentation_map = 0;
+        cpi->mb.e_mbd.update_mb_segmentation_data = 0;
+    }
+
+    cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 0;
+    cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
+    memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
+    memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
+    memset(cpi->mb.e_mbd.last_ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
+    memset(cpi->mb.e_mbd.last_mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
+
+    set_default_lf_deltas(cpi);
+
+}
+
+
+static void dealloc_raw_frame_buffers(VP8_COMP *cpi);
+
+
+static void dealloc_compressor_data(VP8_COMP *cpi)
+{
+    vpx_free(cpi->tplist);
+    cpi->tplist = NULL;
+
+    /* Delete last frame MV storage buffers */
+    vpx_free(cpi->lfmv);
+    cpi->lfmv = 0;
+
+    vpx_free(cpi->lf_ref_frame_sign_bias);
+    cpi->lf_ref_frame_sign_bias = 0;
+
+    vpx_free(cpi->lf_ref_frame);
+    cpi->lf_ref_frame = 0;
+
+    /* Delete sementation map */
+    vpx_free(cpi->segmentation_map);
+    cpi->segmentation_map = 0;
+
+    vpx_free(cpi->active_map);
+    cpi->active_map = 0;
+
+    vp8_de_alloc_frame_buffers(&cpi->common);
+
+    vp8_yv12_de_alloc_frame_buffer(&cpi->pick_lf_lvl_frame);
+    vp8_yv12_de_alloc_frame_buffer(&cpi->scaled_source);
+    dealloc_raw_frame_buffers(cpi);
+
+    vpx_free(cpi->tok);
+    cpi->tok = 0;
+
+    /* Structure used to monitor GF usage */
+    vpx_free(cpi->gf_active_flags);
+    cpi->gf_active_flags = 0;
+
+    /* Activity mask based per mb zbin adjustments */
+    vpx_free(cpi->mb_activity_map);
+    cpi->mb_activity_map = 0;
+
+    vpx_free(cpi->mb.pip);
+    cpi->mb.pip = 0;
+
+#if CONFIG_MULTITHREAD
+    vpx_free(cpi->mt_current_mb_col);
+    cpi->mt_current_mb_col = NULL;
+#endif
+}
+
+static void enable_segmentation(VP8_COMP *cpi)
+{
+    /* Set the appropriate feature bit */
+    cpi->mb.e_mbd.segmentation_enabled = 1;
+    cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+    cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+}
+static void disable_segmentation(VP8_COMP *cpi)
+{
+    /* Clear the appropriate feature bit */
+    cpi->mb.e_mbd.segmentation_enabled = 0;
+}
+
+/* Valid values for a segment are 0 to 3
+ * Segmentation map is arrange as [Rows][Columns]
+ */
+static void set_segmentation_map(VP8_COMP *cpi, unsigned char *segmentation_map)
+{
+    /* Copy in the new segmentation map */
+    memcpy(cpi->segmentation_map, segmentation_map, (cpi->common.mb_rows * cpi->common.mb_cols));
+
+    /* Signal that the map should be updated. */
+    cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+    cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+}
+
+/* The values given for each segment can be either deltas (from the default
+ * value chosen for the frame) or absolute values.
+ *
+ * Valid range for abs values is:
+ *    (0-127 for MB_LVL_ALT_Q), (0-63 for SEGMENT_ALT_LF)
+ * Valid range for delta values are:
+ *    (+/-127 for MB_LVL_ALT_Q), (+/-63 for SEGMENT_ALT_LF)
+ *
+ * abs_delta = SEGMENT_DELTADATA (deltas)
+ * abs_delta = SEGMENT_ABSDATA (use the absolute values given).
+ *
+ */
+static void set_segment_data(VP8_COMP *cpi, signed char *feature_data, unsigned char abs_delta)
+{
+    cpi->mb.e_mbd.mb_segement_abs_delta = abs_delta;
+    memcpy(cpi->segment_feature_data, feature_data, sizeof(cpi->segment_feature_data));
+}
+
+
+static void segmentation_test_function(VP8_COMP *cpi)
+{
+    unsigned char *seg_map;
+    signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+
+    // Create a temporary map for segmentation data.
+    CHECK_MEM_ERROR(seg_map, vpx_calloc(cpi->common.mb_rows * cpi->common.mb_cols, 1));
+
+    // Set the segmentation Map
+    set_segmentation_map(cpi, seg_map);
+
+    // Activate segmentation.
+    enable_segmentation(cpi);
+
+    // Set up the quant segment data
+    feature_data[MB_LVL_ALT_Q][0] = 0;
+    feature_data[MB_LVL_ALT_Q][1] = 4;
+    feature_data[MB_LVL_ALT_Q][2] = 0;
+    feature_data[MB_LVL_ALT_Q][3] = 0;
+    // Set up the loop segment data
+    feature_data[MB_LVL_ALT_LF][0] = 0;
+    feature_data[MB_LVL_ALT_LF][1] = 0;
+    feature_data[MB_LVL_ALT_LF][2] = 0;
+    feature_data[MB_LVL_ALT_LF][3] = 0;
+
+    // Initialise the feature data structure
+    // SEGMENT_DELTADATA    0, SEGMENT_ABSDATA      1
+    set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+
+    // Delete sementation map
+    vpx_free(seg_map);
+
+    seg_map = 0;
+}
+
+/* A simple function to cyclically refresh the background at a lower Q */
+static void cyclic_background_refresh(VP8_COMP *cpi, int Q, int lf_adjustment)
+{
+    unsigned char *seg_map = cpi->segmentation_map;
+    signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+    int i;
+    int block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
+    int mbs_in_frame = cpi->common.mb_rows * cpi->common.mb_cols;
+
+    cpi->cyclic_refresh_q = Q / 2;
+
+    if (cpi->oxcf.screen_content_mode) {
+      // Modify quality ramp-up based on Q. Above some Q level, increase the
+      // number of blocks to be refreshed, and reduce it below the thredhold.
+      // Turn-off under certain conditions (i.e., away from key frame, and if
+      // we are at good quality (low Q) and most of the blocks were skipped-encoded
+      // in previous frame.
+      int qp_thresh = (cpi->oxcf.screen_content_mode == 2) ? 80 : 100;
+      if (Q >= qp_thresh) {
+        cpi->cyclic_refresh_mode_max_mbs_perframe =
+            (cpi->common.mb_rows * cpi->common.mb_cols) / 10;
+      } else if (cpi->frames_since_key > 250 &&
+                 Q < 20 &&
+                 cpi->mb.skip_true_count > (int)(0.95 * mbs_in_frame)) {
+        cpi->cyclic_refresh_mode_max_mbs_perframe = 0;
+      } else {
+        cpi->cyclic_refresh_mode_max_mbs_perframe =
+            (cpi->common.mb_rows * cpi->common.mb_cols) / 20;
+      }
+      block_count = cpi->cyclic_refresh_mode_max_mbs_perframe;
+    }
+
+    // Set every macroblock to be eligible for update.
+    // For key frame this will reset seg map to 0.
+    memset(cpi->segmentation_map, 0, mbs_in_frame);
+
+    if (cpi->common.frame_type != KEY_FRAME && block_count > 0)
+    {
+        /* Cycle through the macro_block rows */
+        /* MB loop to set local segmentation map */
+        i = cpi->cyclic_refresh_mode_index;
+        assert(i < mbs_in_frame);
+        do
+        {
+          /* If the MB is as a candidate for clean up then mark it for
+           * possible boost/refresh (segment 1) The segment id may get
+           * reset to 0 later if the MB gets coded anything other than
+           * last frame 0,0 as only (last frame 0,0) MBs are eligable for
+           * refresh : that is to say Mbs likely to be background blocks.
+           */
+          if (cpi->cyclic_refresh_map[i] == 0)
+          {
+              seg_map[i] = 1;
+              block_count --;
+          }
+          else if (cpi->cyclic_refresh_map[i] < 0)
+              cpi->cyclic_refresh_map[i]++;
+
+          i++;
+          if (i == mbs_in_frame)
+              i = 0;
+
+        }
+        while(block_count && i != cpi->cyclic_refresh_mode_index);
+
+        cpi->cyclic_refresh_mode_index = i;
+
+#if CONFIG_TEMPORAL_DENOISING
+        if (cpi->oxcf.noise_sensitivity > 0) {
+          if (cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive &&
+              Q < (int)cpi->denoiser.denoise_pars.qp_thresh &&
+              (cpi->frames_since_key >
+               2 * cpi->denoiser.denoise_pars.consec_zerolast)) {
+            // Under aggressive denoising, use segmentation to turn off loop
+            // filter below some qp thresh. The filter is reduced for all
+            // blocks that have been encoded as ZEROMV LAST x frames in a row,
+            // where x is set by cpi->denoiser.denoise_pars.consec_zerolast.
+            // This is to avoid "dot" artifacts that can occur from repeated
+            // loop filtering on noisy input source.
+            cpi->cyclic_refresh_q = Q;
+            // lf_adjustment = -MAX_LOOP_FILTER;
+            lf_adjustment = -40;
+            for (i = 0; i < mbs_in_frame; ++i) {
+              seg_map[i] = (cpi->consec_zero_last[i] >
+                            cpi->denoiser.denoise_pars.consec_zerolast) ? 1 : 0;
+            }
+          }
+        }
+#endif
+    }
+
+    /* Activate segmentation. */
+    cpi->mb.e_mbd.update_mb_segmentation_map = 1;
+    cpi->mb.e_mbd.update_mb_segmentation_data = 1;
+    enable_segmentation(cpi);
+
+    /* Set up the quant segment data */
+    feature_data[MB_LVL_ALT_Q][0] = 0;
+    feature_data[MB_LVL_ALT_Q][1] = (cpi->cyclic_refresh_q - Q);
+    feature_data[MB_LVL_ALT_Q][2] = 0;
+    feature_data[MB_LVL_ALT_Q][3] = 0;
+
+    /* Set up the loop segment data */
+    feature_data[MB_LVL_ALT_LF][0] = 0;
+    feature_data[MB_LVL_ALT_LF][1] = lf_adjustment;
+    feature_data[MB_LVL_ALT_LF][2] = 0;
+    feature_data[MB_LVL_ALT_LF][3] = 0;
+
+    /* Initialise the feature data structure */
+    set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+
+}
+
+static void set_default_lf_deltas(VP8_COMP *cpi)
+{
+    cpi->mb.e_mbd.mode_ref_lf_delta_enabled = 1;
+    cpi->mb.e_mbd.mode_ref_lf_delta_update = 1;
+
+    memset(cpi->mb.e_mbd.ref_lf_deltas, 0, sizeof(cpi->mb.e_mbd.ref_lf_deltas));
+    memset(cpi->mb.e_mbd.mode_lf_deltas, 0, sizeof(cpi->mb.e_mbd.mode_lf_deltas));
+
+    /* Test of ref frame deltas */
+    cpi->mb.e_mbd.ref_lf_deltas[INTRA_FRAME] = 2;
+    cpi->mb.e_mbd.ref_lf_deltas[LAST_FRAME] = 0;
+    cpi->mb.e_mbd.ref_lf_deltas[GOLDEN_FRAME] = -2;
+    cpi->mb.e_mbd.ref_lf_deltas[ALTREF_FRAME] = -2;
+
+    cpi->mb.e_mbd.mode_lf_deltas[0] = 4;               /* BPRED */
+
+    if(cpi->oxcf.Mode == MODE_REALTIME)
+      cpi->mb.e_mbd.mode_lf_deltas[1] = -12;              /* Zero */
+    else
+      cpi->mb.e_mbd.mode_lf_deltas[1] = -2;              /* Zero */
+
+    cpi->mb.e_mbd.mode_lf_deltas[2] = 2;               /* New mv */
+    cpi->mb.e_mbd.mode_lf_deltas[3] = 4;               /* Split mv */
+}
+
+/* Convenience macros for mapping speed and mode into a continuous
+ * range
+ */
+#define GOOD(x) (x+1)
+#define RT(x) (x+7)
+
+static int speed_map(int speed, const int *map)
+{
+    int res;
+
+    do
+    {
+        res = *map++;
+    } while(speed >= *map++);
+    return res;
+}
+
+static const int thresh_mult_map_znn[] = {
+    /* map common to zero, nearest, and near */
+    0, GOOD(2), 1500, GOOD(3), 2000, RT(0), 1000, RT(2), 2000, INT_MAX
+};
+
+static const int thresh_mult_map_vhpred[] = {
+    1000, GOOD(2), 1500, GOOD(3), 2000, RT(0), 1000, RT(1), 2000,
+    RT(7), INT_MAX, INT_MAX
+};
+
+static const int thresh_mult_map_bpred[] = {
+    2000, GOOD(0), 2500, GOOD(2), 5000, GOOD(3), 7500, RT(0), 2500, RT(1), 5000,
+    RT(6), INT_MAX, INT_MAX
+};
+
+static const int thresh_mult_map_tm[] = {
+    1000, GOOD(2), 1500, GOOD(3), 2000, RT(0), 0, RT(1), 1000, RT(2), 2000,
+    RT(7), INT_MAX, INT_MAX
+};
+
+static const int thresh_mult_map_new1[] = {
+    1000, GOOD(2), 2000, RT(0), 2000, INT_MAX
+};
+
+static const int thresh_mult_map_new2[] = {
+    1000, GOOD(2), 2000, GOOD(3), 2500, GOOD(5), 4000, RT(0), 2000, RT(2), 2500,
+    RT(5), 4000, INT_MAX
+};
+
+static const int thresh_mult_map_split1[] = {
+    2500, GOOD(0), 1700, GOOD(2), 10000, GOOD(3), 25000, GOOD(4), INT_MAX,
+    RT(0), 5000, RT(1), 10000, RT(2), 25000, RT(3), INT_MAX, INT_MAX
+};
+
+static const int thresh_mult_map_split2[] = {
+    5000, GOOD(0), 4500, GOOD(2), 20000, GOOD(3), 50000, GOOD(4), INT_MAX,
+    RT(0), 10000, RT(1), 20000, RT(2), 50000, RT(3), INT_MAX, INT_MAX
+};
+
+static const int mode_check_freq_map_zn2[] = {
+    /* {zero,nearest}{2,3} */
+    0, RT(10), 1<<1, RT(11), 1<<2, RT(12), 1<<3, INT_MAX
+};
+
+static const int mode_check_freq_map_vhbpred[] = {
+    0, GOOD(5), 2, RT(0), 0, RT(3), 2, RT(5), 4, INT_MAX
+};
+
+static const int mode_check_freq_map_near2[] = {
+    0, GOOD(5), 2, RT(0), 0, RT(3), 2, RT(10), 1<<2, RT(11), 1<<3, RT(12), 1<<4,
+    INT_MAX
+};
+
+static const int mode_check_freq_map_new1[] = {
+    0, RT(10), 1<<1, RT(11), 1<<2, RT(12), 1<<3, INT_MAX
+};
+
+static const int mode_check_freq_map_new2[] = {
+    0, GOOD(5), 4, RT(0), 0, RT(3), 4, RT(10), 1<<3, RT(11), 1<<4, RT(12), 1<<5,
+    INT_MAX
+};
+
+static const int mode_check_freq_map_split1[] = {
+    0, GOOD(2), 2, GOOD(3), 7, RT(1), 2, RT(2), 7, INT_MAX
+};
+
+static const int mode_check_freq_map_split2[] = {
+    0, GOOD(1), 2, GOOD(2), 4, GOOD(3), 15, RT(1), 4, RT(2), 15, INT_MAX
+};
+
+void vp8_set_speed_features(VP8_COMP *cpi)
+{
+    SPEED_FEATURES *sf = &cpi->sf;
+    int Mode = cpi->compressor_speed;
+    int Speed = cpi->Speed;
+    int i;
+    VP8_COMMON *cm = &cpi->common;
+    int last_improved_quant = sf->improved_quant;
+    int ref_frames;
+
+    /* Initialise default mode frequency sampling variables */
+    for (i = 0; i < MAX_MODES; i ++)
+    {
+        cpi->mode_check_freq[i] = 0;
+    }
+
+    cpi->mb.mbs_tested_so_far = 0;
+    cpi->mb.mbs_zero_last_dot_suppress = 0;
+
+    /* best quality defaults */
+    sf->RD = 1;
+    sf->search_method = NSTEP;
+    sf->improved_quant = 1;
+    sf->improved_dct = 1;
+    sf->auto_filter = 1;
+    sf->recode_loop = 1;
+    sf->quarter_pixel_search = 1;
+    sf->half_pixel_search = 1;
+    sf->iterative_sub_pixel = 1;
+    sf->optimize_coefficients = 1;
+    sf->use_fastquant_for_pick = 0;
+    sf->no_skip_block4x4_search = 1;
+
+    sf->first_step = 0;
+    sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
+    sf->improved_mv_pred = 1;
+
+    /* default thresholds to 0 */
+    for (i = 0; i < MAX_MODES; i++)
+        sf->thresh_mult[i] = 0;
+
+    /* Count enabled references */
+    ref_frames = 1;
+    if (cpi->ref_frame_flags & VP8_LAST_FRAME)
+        ref_frames++;
+    if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
+        ref_frames++;
+    if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
+        ref_frames++;
+
+    /* Convert speed to continuous range, with clamping */
+    if (Mode == 0)
+        Speed = 0;
+    else if (Mode == 2)
+        Speed = RT(Speed);
+    else
+    {
+        if (Speed > 5)
+            Speed = 5;
+        Speed = GOOD(Speed);
+    }
+
+    sf->thresh_mult[THR_ZERO1] =
+    sf->thresh_mult[THR_NEAREST1] =
+    sf->thresh_mult[THR_NEAR1] =
+    sf->thresh_mult[THR_DC] = 0; /* always */
+
+    sf->thresh_mult[THR_ZERO2] =
+    sf->thresh_mult[THR_ZERO3] =
+    sf->thresh_mult[THR_NEAREST2] =
+    sf->thresh_mult[THR_NEAREST3] =
+    sf->thresh_mult[THR_NEAR2]  =
+    sf->thresh_mult[THR_NEAR3]  = speed_map(Speed, thresh_mult_map_znn);
+
+    sf->thresh_mult[THR_V_PRED] =
+    sf->thresh_mult[THR_H_PRED] = speed_map(Speed, thresh_mult_map_vhpred);
+    sf->thresh_mult[THR_B_PRED] = speed_map(Speed, thresh_mult_map_bpred);
+    sf->thresh_mult[THR_TM]     = speed_map(Speed, thresh_mult_map_tm);
+    sf->thresh_mult[THR_NEW1]   = speed_map(Speed, thresh_mult_map_new1);
+    sf->thresh_mult[THR_NEW2]   =
+    sf->thresh_mult[THR_NEW3]   = speed_map(Speed, thresh_mult_map_new2);
+    sf->thresh_mult[THR_SPLIT1] = speed_map(Speed, thresh_mult_map_split1);
+    sf->thresh_mult[THR_SPLIT2] =
+    sf->thresh_mult[THR_SPLIT3] = speed_map(Speed, thresh_mult_map_split2);
+
+    // Special case for temporal layers.
+    // Reduce the thresholds for zero/nearest/near for GOLDEN, if GOLDEN is
+    // used as second reference. We don't modify thresholds for ALTREF case
+    // since ALTREF is usually used as long-term reference in temporal layers.
+    if ((cpi->Speed <= 6) &&
+        (cpi->oxcf.number_of_layers > 1) &&
+        (cpi->ref_frame_flags & VP8_LAST_FRAME) &&
+        (cpi->ref_frame_flags & VP8_GOLD_FRAME)) {
+      if (cpi->closest_reference_frame == GOLDEN_FRAME) {
+        sf->thresh_mult[THR_ZERO2] =  sf->thresh_mult[THR_ZERO2] >> 3;
+        sf->thresh_mult[THR_NEAREST2] = sf->thresh_mult[THR_NEAREST2] >> 3;
+        sf->thresh_mult[THR_NEAR2]  = sf->thresh_mult[THR_NEAR2] >> 3;
+      } else {
+        sf->thresh_mult[THR_ZERO2] =  sf->thresh_mult[THR_ZERO2] >> 1;
+        sf->thresh_mult[THR_NEAREST2] = sf->thresh_mult[THR_NEAREST2] >> 1;
+        sf->thresh_mult[THR_NEAR2]  = sf->thresh_mult[THR_NEAR2] >> 1;
+      }
+    }
+
+    cpi->mode_check_freq[THR_ZERO1] =
+    cpi->mode_check_freq[THR_NEAREST1] =
+    cpi->mode_check_freq[THR_NEAR1] =
+    cpi->mode_check_freq[THR_TM]     =
+    cpi->mode_check_freq[THR_DC] = 0; /* always */
+
+    cpi->mode_check_freq[THR_ZERO2] =
+    cpi->mode_check_freq[THR_ZERO3] =
+    cpi->mode_check_freq[THR_NEAREST2] =
+    cpi->mode_check_freq[THR_NEAREST3] = speed_map(Speed,
+                                                   mode_check_freq_map_zn2);
+
+    cpi->mode_check_freq[THR_NEAR2]  =
+    cpi->mode_check_freq[THR_NEAR3]  = speed_map(Speed,
+                                                 mode_check_freq_map_near2);
+
+    cpi->mode_check_freq[THR_V_PRED] =
+    cpi->mode_check_freq[THR_H_PRED] =
+    cpi->mode_check_freq[THR_B_PRED] = speed_map(Speed,
+                                                 mode_check_freq_map_vhbpred);
+    cpi->mode_check_freq[THR_NEW1]   = speed_map(Speed,
+                                                 mode_check_freq_map_new1);
+    cpi->mode_check_freq[THR_NEW2]   =
+    cpi->mode_check_freq[THR_NEW3]   = speed_map(Speed,
+                                                 mode_check_freq_map_new2);
+    cpi->mode_check_freq[THR_SPLIT1] = speed_map(Speed,
+                                                 mode_check_freq_map_split1);
+    cpi->mode_check_freq[THR_SPLIT2] =
+    cpi->mode_check_freq[THR_SPLIT3] = speed_map(Speed,
+                                                 mode_check_freq_map_split2);
+    Speed = cpi->Speed;
+    switch (Mode)
+    {
+#if !(CONFIG_REALTIME_ONLY)
+    case 0: /* best quality mode */
+        sf->first_step = 0;
+        sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
+        break;
+    case 1:
+    case 3:
+        if (Speed > 0)
+        {
+            /* Disable coefficient optimization above speed 0 */
+            sf->optimize_coefficients = 0;
+            sf->use_fastquant_for_pick = 1;
+            sf->no_skip_block4x4_search = 0;
+
+            sf->first_step = 1;
+        }
+
+        if (Speed > 2)
+        {
+            sf->improved_quant = 0;
+            sf->improved_dct = 0;
+
+            /* Only do recode loop on key frames, golden frames and
+             * alt ref frames
+             */
+            sf->recode_loop = 2;
+
+        }
+
+        if (Speed > 3)
+        {
+            sf->auto_filter = 1;
+            sf->recode_loop = 0; /* recode loop off */
+            sf->RD = 0;         /* Turn rd off */
+
+        }
+
+        if (Speed > 4)
+        {
+            sf->auto_filter = 0;  /* Faster selection of loop filter */
+        }
+
+        break;
+#endif
+    case 2:
+        sf->optimize_coefficients = 0;
+        sf->recode_loop = 0;
+        sf->auto_filter = 1;
+        sf->iterative_sub_pixel = 1;
+        sf->search_method = NSTEP;
+
+        if (Speed > 0)
+        {
+            sf->improved_quant = 0;
+            sf->improved_dct = 0;
+
+            sf->use_fastquant_for_pick = 1;
+            sf->no_skip_block4x4_search = 0;
+            sf->first_step = 1;
+        }
+
+        if (Speed > 2)
+            sf->auto_filter = 0;  /* Faster selection of loop filter */
+
+        if (Speed > 3)
+        {
+            sf->RD = 0;
+            sf->auto_filter = 1;
+        }
+
+        if (Speed > 4)
+        {
+            sf->auto_filter = 0;  /* Faster selection of loop filter */
+            sf->search_method = HEX;
+            sf->iterative_sub_pixel = 0;
+        }
+
+        if (Speed > 6)
+        {
+            unsigned int sum = 0;
+            unsigned int total_mbs = cm->MBs;
+            int thresh;
+            unsigned int total_skip;
+
+            int min = 2000;
+
+            if (cpi->oxcf.encode_breakout > 2000)
+                min = cpi->oxcf.encode_breakout;
+
+            min >>= 7;
+
+            for (i = 0; i < min; i++)
+            {
+                sum += cpi->mb.error_bins[i];
+            }
+
+            total_skip = sum;
+            sum = 0;
+
+            /* i starts from 2 to make sure thresh started from 2048 */
+            for (; i < 1024; i++)
+            {
+                sum += cpi->mb.error_bins[i];
+
+                if (10 * sum >= (unsigned int)(cpi->Speed - 6)*(total_mbs - total_skip))
+                    break;
+            }
+
+            i--;
+            thresh = (i << 7);
+
+            if (thresh < 2000)
+                thresh = 2000;
+
+            if (ref_frames > 1)
+            {
+                sf->thresh_mult[THR_NEW1 ] = thresh;
+                sf->thresh_mult[THR_NEAREST1  ] = thresh >> 1;
+                sf->thresh_mult[THR_NEAR1     ] = thresh >> 1;
+            }
+
+            if (ref_frames > 2)
+            {
+                sf->thresh_mult[THR_NEW2] = thresh << 1;
+                sf->thresh_mult[THR_NEAREST2 ] = thresh;
+                sf->thresh_mult[THR_NEAR2    ] = thresh;
+            }
+
+            if (ref_frames > 3)
+            {
+                sf->thresh_mult[THR_NEW3] = thresh << 1;
+                sf->thresh_mult[THR_NEAREST3 ] = thresh;
+                sf->thresh_mult[THR_NEAR3    ] = thresh;
+            }
+
+            sf->improved_mv_pred = 0;
+        }
+
+        if (Speed > 8)
+            sf->quarter_pixel_search = 0;
+
+        if(cm->version == 0)
+        {
+            cm->filter_type = NORMAL_LOOPFILTER;
+
+            if (Speed >= 14)
+                cm->filter_type = SIMPLE_LOOPFILTER;
+        }
+        else
+        {
+            cm->filter_type = SIMPLE_LOOPFILTER;
+        }
+
+        /* This has a big hit on quality. Last resort */
+        if (Speed >= 15)
+            sf->half_pixel_search = 0;
+
+        memset(cpi->mb.error_bins, 0, sizeof(cpi->mb.error_bins));
+
+    }; /* switch */
+
+    /* Slow quant, dct and trellis not worthwhile for first pass
+     * so make sure they are always turned off.
+     */
+    if ( cpi->pass == 1 )
+    {
+        sf->improved_quant = 0;
+        sf->optimize_coefficients = 0;
+        sf->improved_dct = 0;
+    }
+
+    if (cpi->sf.search_method == NSTEP)
+    {
+        vp8_init3smotion_compensation(&cpi->mb, cm->yv12_fb[cm->lst_fb_idx].y_stride);
+    }
+    else if (cpi->sf.search_method == DIAMOND)
+    {
+        vp8_init_dsmotion_compensation(&cpi->mb, cm->yv12_fb[cm->lst_fb_idx].y_stride);
+    }
+
+    if (cpi->sf.improved_dct)
+    {
+        cpi->mb.short_fdct8x4 = vp8_short_fdct8x4;
+        cpi->mb.short_fdct4x4 = vp8_short_fdct4x4;
+    }
+    else
+    {
+        /* No fast FDCT defined for any platform at this time. */
+        cpi->mb.short_fdct8x4 = vp8_short_fdct8x4;
+        cpi->mb.short_fdct4x4 = vp8_short_fdct4x4;
+    }
+
+    cpi->mb.short_walsh4x4 = vp8_short_walsh4x4;
+
+    if (cpi->sf.improved_quant)
+    {
+        cpi->mb.quantize_b      = vp8_regular_quantize_b;
+    }
+    else
+    {
+        cpi->mb.quantize_b      = vp8_fast_quantize_b;
+    }
+    if (cpi->sf.improved_quant != last_improved_quant)
+        vp8cx_init_quantizer(cpi);
+
+    if (cpi->sf.iterative_sub_pixel == 1)
+    {
+        cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step_iteratively;
+    }
+    else if (cpi->sf.quarter_pixel_search)
+    {
+        cpi->find_fractional_mv_step = vp8_find_best_sub_pixel_step;
+    }
+    else if (cpi->sf.half_pixel_search)
+    {
+        cpi->find_fractional_mv_step = vp8_find_best_half_pixel_step;
+    }
+    else
+    {
+        cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
+    }
+
+    if (cpi->sf.optimize_coefficients == 1 && cpi->pass!=1)
+        cpi->mb.optimize = 1;
+    else
+        cpi->mb.optimize = 0;
+
+    if (cpi->common.full_pixel)
+        cpi->find_fractional_mv_step = vp8_skip_fractional_mv_step;
+
+#ifdef SPEEDSTATS
+    frames_at_speed[cpi->Speed]++;
+#endif
+}
+#undef GOOD
+#undef RT
+
+static void alloc_raw_frame_buffers(VP8_COMP *cpi)
+{
+#if VP8_TEMPORAL_ALT_REF
+    int width = (cpi->oxcf.Width + 15) & ~15;
+    int height = (cpi->oxcf.Height + 15) & ~15;
+#endif
+
+    cpi->lookahead = vp8_lookahead_init(cpi->oxcf.Width, cpi->oxcf.Height,
+                                        cpi->oxcf.lag_in_frames);
+    if(!cpi->lookahead)
+        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate lag buffers");
+
+#if VP8_TEMPORAL_ALT_REF
+
+    if (vp8_yv12_alloc_frame_buffer(&cpi->alt_ref_buffer,
+                                    width, height, VP8BORDERINPIXELS))
+        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate altref buffer");
+
+#endif
+}
+
+
+static void dealloc_raw_frame_buffers(VP8_COMP *cpi)
+{
+#if VP8_TEMPORAL_ALT_REF
+    vp8_yv12_de_alloc_frame_buffer(&cpi->alt_ref_buffer);
+#endif
+    vp8_lookahead_destroy(cpi->lookahead);
+}
+
+
+static int vp8_alloc_partition_data(VP8_COMP *cpi)
+{
+        vpx_free(cpi->mb.pip);
+
+    cpi->mb.pip = vpx_calloc((cpi->common.mb_cols + 1) *
+                                (cpi->common.mb_rows + 1),
+                                sizeof(PARTITION_INFO));
+    if(!cpi->mb.pip)
+        return 1;
+
+    cpi->mb.pi = cpi->mb.pip + cpi->common.mode_info_stride + 1;
+
+    return 0;
+}
+
+void vp8_alloc_compressor_data(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = & cpi->common;
+
+    int width = cm->Width;
+    int height = cm->Height;
+
+    if (vp8_alloc_frame_buffers(cm, width, height))
+        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate frame buffers");
+
+    if (vp8_alloc_partition_data(cpi))
+        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate partition data");
+
+
+    if ((width & 0xf) != 0)
+        width += 16 - (width & 0xf);
+
+    if ((height & 0xf) != 0)
+        height += 16 - (height & 0xf);
+
+
+    if (vp8_yv12_alloc_frame_buffer(&cpi->pick_lf_lvl_frame,
+                                    width, height, VP8BORDERINPIXELS))
+        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate last frame buffer");
+
+    if (vp8_yv12_alloc_frame_buffer(&cpi->scaled_source,
+                                    width, height, VP8BORDERINPIXELS))
+        vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,
+                           "Failed to allocate scaled source buffer");
+
+    vpx_free(cpi->tok);
+
+    {
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+        unsigned int tokens = 8 * 24 * 16; /* one MB for each thread */
+#else
+        unsigned int tokens = cm->mb_rows * cm->mb_cols * 24 * 16;
+#endif
+        CHECK_MEM_ERROR(cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok)));
+    }
+
+    /* Data used for real time vc mode to see if gf needs refreshing */
+    cpi->zeromv_count = 0;
+
+
+    /* Structures used to monitor GF usage */
+    vpx_free(cpi->gf_active_flags);
+    CHECK_MEM_ERROR(cpi->gf_active_flags,
+                    vpx_calloc(sizeof(*cpi->gf_active_flags),
+                    cm->mb_rows * cm->mb_cols));
+    cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+
+    vpx_free(cpi->mb_activity_map);
+    CHECK_MEM_ERROR(cpi->mb_activity_map,
+                    vpx_calloc(sizeof(*cpi->mb_activity_map),
+                    cm->mb_rows * cm->mb_cols));
+
+    /* allocate memory for storing last frame's MVs for MV prediction. */
+    vpx_free(cpi->lfmv);
+    CHECK_MEM_ERROR(cpi->lfmv, vpx_calloc((cm->mb_rows+2) * (cm->mb_cols+2),
+                    sizeof(*cpi->lfmv)));
+    vpx_free(cpi->lf_ref_frame_sign_bias);
+    CHECK_MEM_ERROR(cpi->lf_ref_frame_sign_bias,
+                    vpx_calloc((cm->mb_rows+2) * (cm->mb_cols+2),
+                    sizeof(*cpi->lf_ref_frame_sign_bias)));
+    vpx_free(cpi->lf_ref_frame);
+    CHECK_MEM_ERROR(cpi->lf_ref_frame,
+                    vpx_calloc((cm->mb_rows+2) * (cm->mb_cols+2),
+                    sizeof(*cpi->lf_ref_frame)));
+
+    /* Create the encoder segmentation map and set all entries to 0 */
+    vpx_free(cpi->segmentation_map);
+    CHECK_MEM_ERROR(cpi->segmentation_map,
+                    vpx_calloc(cm->mb_rows * cm->mb_cols,
+                    sizeof(*cpi->segmentation_map)));
+    cpi->cyclic_refresh_mode_index = 0;
+    vpx_free(cpi->active_map);
+    CHECK_MEM_ERROR(cpi->active_map,
+                    vpx_calloc(cm->mb_rows * cm->mb_cols,
+                    sizeof(*cpi->active_map)));
+    memset(cpi->active_map , 1, (cm->mb_rows * cm->mb_cols));
+
+#if CONFIG_MULTITHREAD
+    if (width < 640)
+        cpi->mt_sync_range = 1;
+    else if (width <= 1280)
+        cpi->mt_sync_range = 4;
+    else if (width <= 2560)
+        cpi->mt_sync_range = 8;
+    else
+        cpi->mt_sync_range = 16;
+
+    if (cpi->oxcf.multi_threaded > 1)
+    {
+        vpx_free(cpi->mt_current_mb_col);
+        CHECK_MEM_ERROR(cpi->mt_current_mb_col,
+                    vpx_malloc(sizeof(*cpi->mt_current_mb_col) * cm->mb_rows));
+    }
+
+#endif
+
+    vpx_free(cpi->tplist);
+    CHECK_MEM_ERROR(cpi->tplist, vpx_malloc(sizeof(TOKENLIST) * cm->mb_rows));
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity > 0) {
+      vp8_denoiser_free(&cpi->denoiser);
+      vp8_denoiser_allocate(&cpi->denoiser, width, height,
+                            cm->mb_rows, cm->mb_cols,
+                            cpi->oxcf.noise_sensitivity);
+    }
+#endif
+}
+
+
+/* Quant MOD */
+static const int q_trans[] =
+{
+    0,   1,  2,  3,  4,  5,  7,  8,
+    9,  10, 12, 13, 15, 17, 18, 19,
+    20,  21, 23, 24, 25, 26, 27, 28,
+    29,  30, 31, 33, 35, 37, 39, 41,
+    43,  45, 47, 49, 51, 53, 55, 57,
+    59,  61, 64, 67, 70, 73, 76, 79,
+    82,  85, 88, 91, 94, 97, 100, 103,
+    106, 109, 112, 115, 118, 121, 124, 127,
+};
+
+int vp8_reverse_trans(int x)
+{
+    int i;
+
+    for (i = 0; i < 64; i++)
+        if (q_trans[i] >= x)
+            return i;
+
+    return 63;
+}
+void vp8_new_framerate(VP8_COMP *cpi, double framerate)
+{
+    if(framerate < .1)
+        framerate = 30;
+
+    cpi->framerate              = framerate;
+    cpi->output_framerate       = framerate;
+    cpi->per_frame_bandwidth    = (int)(cpi->oxcf.target_bandwidth /
+                                  cpi->output_framerate);
+    cpi->av_per_frame_bandwidth = cpi->per_frame_bandwidth;
+    cpi->min_frame_bandwidth    = (int)(cpi->av_per_frame_bandwidth *
+                                  cpi->oxcf.two_pass_vbrmin_section / 100);
+
+    /* Set Maximum gf/arf interval */
+    cpi->max_gf_interval = ((int)(cpi->output_framerate / 2.0) + 2);
+
+    if(cpi->max_gf_interval < 12)
+        cpi->max_gf_interval = 12;
+
+    /* Extended interval for genuinely static scenes */
+    cpi->twopass.static_scene_max_gf_interval = cpi->key_frame_frequency >> 1;
+
+     /* Special conditions when altr ref frame enabled in lagged compress mode */
+    if (cpi->oxcf.play_alternate && cpi->oxcf.lag_in_frames)
+    {
+        if (cpi->max_gf_interval > cpi->oxcf.lag_in_frames - 1)
+            cpi->max_gf_interval = cpi->oxcf.lag_in_frames - 1;
+
+        if (cpi->twopass.static_scene_max_gf_interval > cpi->oxcf.lag_in_frames - 1)
+            cpi->twopass.static_scene_max_gf_interval = cpi->oxcf.lag_in_frames - 1;
+    }
+
+    if ( cpi->max_gf_interval > cpi->twopass.static_scene_max_gf_interval )
+        cpi->max_gf_interval = cpi->twopass.static_scene_max_gf_interval;
+}
+
+
+static void init_config(VP8_COMP *cpi, VP8_CONFIG *oxcf)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    cpi->oxcf = *oxcf;
+
+    cpi->auto_gold = 1;
+    cpi->auto_adjust_gold_quantizer = 1;
+
+    cm->version = oxcf->Version;
+    vp8_setup_version(cm);
+
+    /* Frame rate is not available on the first frame, as it's derived from
+     * the observed timestamps. The actual value used here doesn't matter
+     * too much, as it will adapt quickly.
+     */
+    if (oxcf->timebase.num > 0) {
+      cpi->framerate = (double)(oxcf->timebase.den) /
+                       (double)(oxcf->timebase.num);
+    } else {
+      cpi->framerate = 30;
+    }
+
+    /* If the reciprocal of the timebase seems like a reasonable framerate,
+     * then use that as a guess, otherwise use 30.
+     */
+    if (cpi->framerate > 180)
+        cpi->framerate = 30;
+
+    cpi->ref_framerate = cpi->framerate;
+
+    cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
+
+    cm->refresh_golden_frame = 0;
+    cm->refresh_last_frame = 1;
+    cm->refresh_entropy_probs = 1;
+
+    /* change includes all joint functionality */
+    vp8_change_config(cpi, oxcf);
+
+    /* Initialize active best and worst q and average q values. */
+    cpi->active_worst_quality         = cpi->oxcf.worst_allowed_q;
+    cpi->active_best_quality          = cpi->oxcf.best_allowed_q;
+    cpi->avg_frame_qindex             = cpi->oxcf.worst_allowed_q;
+
+    /* Initialise the starting buffer levels */
+    cpi->buffer_level                 = cpi->oxcf.starting_buffer_level;
+    cpi->bits_off_target              = cpi->oxcf.starting_buffer_level;
+
+    cpi->rolling_target_bits          = cpi->av_per_frame_bandwidth;
+    cpi->rolling_actual_bits          = cpi->av_per_frame_bandwidth;
+    cpi->long_rolling_target_bits     = cpi->av_per_frame_bandwidth;
+    cpi->long_rolling_actual_bits     = cpi->av_per_frame_bandwidth;
+
+    cpi->total_actual_bits            = 0;
+    cpi->total_target_vs_actual       = 0;
+
+    /* Temporal scalabilty */
+    if (cpi->oxcf.number_of_layers > 1)
+    {
+        unsigned int i;
+        double prev_layer_framerate=0;
+
+        for (i=0; i<cpi->oxcf.number_of_layers; i++)
+        {
+            init_temporal_layer_context(cpi, oxcf, i, prev_layer_framerate);
+            prev_layer_framerate = cpi->output_framerate /
+                                   cpi->oxcf.rate_decimator[i];
+        }
+    }
+
+#if VP8_TEMPORAL_ALT_REF
+    {
+        int i;
+
+        cpi->fixed_divide[0] = 0;
+
+        for (i = 1; i < 512; i++)
+            cpi->fixed_divide[i] = 0x80000 / i;
+    }
+#endif
+}
+
+static void update_layer_contexts (VP8_COMP *cpi)
+{
+    VP8_CONFIG *oxcf = &cpi->oxcf;
+
+    /* Update snapshots of the layer contexts to reflect new parameters */
+    if (oxcf->number_of_layers > 1)
+    {
+        unsigned int i;
+        double prev_layer_framerate=0;
+
+        assert(oxcf->number_of_layers <= VPX_TS_MAX_LAYERS);
+        for (i = 0; i < oxcf->number_of_layers && i < VPX_TS_MAX_LAYERS; ++i)
+        {
+            LAYER_CONTEXT *lc = &cpi->layer_context[i];
+
+            lc->framerate =
+                cpi->ref_framerate / oxcf->rate_decimator[i];
+            lc->target_bandwidth = oxcf->target_bitrate[i] * 1000;
+
+            lc->starting_buffer_level = rescale(
+                          (int)oxcf->starting_buffer_level_in_ms,
+                          lc->target_bandwidth, 1000);
+
+            if (oxcf->optimal_buffer_level == 0)
+                lc->optimal_buffer_level = lc->target_bandwidth / 8;
+            else
+                lc->optimal_buffer_level = rescale(
+                          (int)oxcf->optimal_buffer_level_in_ms,
+                          lc->target_bandwidth, 1000);
+
+            if (oxcf->maximum_buffer_size == 0)
+                lc->maximum_buffer_size = lc->target_bandwidth / 8;
+            else
+                lc->maximum_buffer_size = rescale(
+                          (int)oxcf->maximum_buffer_size_in_ms,
+                          lc->target_bandwidth, 1000);
+
+            /* Work out the average size of a frame within this layer */
+            if (i > 0)
+                lc->avg_frame_size_for_layer =
+                   (int)((oxcf->target_bitrate[i] -
+                          oxcf->target_bitrate[i-1]) * 1000 /
+                          (lc->framerate - prev_layer_framerate));
+
+            prev_layer_framerate = lc->framerate;
+        }
+    }
+}
+
+void vp8_change_config(VP8_COMP *cpi, VP8_CONFIG *oxcf)
+{
+    VP8_COMMON *cm = &cpi->common;
+    int last_w, last_h, prev_number_of_layers;
+
+    if (!cpi)
+        return;
+
+    if (!oxcf)
+        return;
+
+#if CONFIG_MULTITHREAD
+    /*  wait for the last picture loopfilter thread done */
+    if (cpi->b_lpf_running)
+    {
+        sem_wait(&cpi->h_event_end_lpf);
+        cpi->b_lpf_running = 0;
+    }
+#endif
+
+    if (cm->version != oxcf->Version)
+    {
+        cm->version = oxcf->Version;
+        vp8_setup_version(cm);
+    }
+
+    last_w = cpi->oxcf.Width;
+    last_h = cpi->oxcf.Height;
+    prev_number_of_layers = cpi->oxcf.number_of_layers;
+
+    cpi->oxcf = *oxcf;
+
+    switch (cpi->oxcf.Mode)
+    {
+
+    case MODE_REALTIME:
+        cpi->pass = 0;
+        cpi->compressor_speed = 2;
+
+        if (cpi->oxcf.cpu_used < -16)
+        {
+            cpi->oxcf.cpu_used = -16;
+        }
+
+        if (cpi->oxcf.cpu_used > 16)
+            cpi->oxcf.cpu_used = 16;
+
+        break;
+
+    case MODE_GOODQUALITY:
+        cpi->pass = 0;
+        cpi->compressor_speed = 1;
+
+        if (cpi->oxcf.cpu_used < -5)
+        {
+            cpi->oxcf.cpu_used = -5;
+        }
+
+        if (cpi->oxcf.cpu_used > 5)
+            cpi->oxcf.cpu_used = 5;
+
+        break;
+
+    case MODE_BESTQUALITY:
+        cpi->pass = 0;
+        cpi->compressor_speed = 0;
+        break;
+
+    case MODE_FIRSTPASS:
+        cpi->pass = 1;
+        cpi->compressor_speed = 1;
+        break;
+    case MODE_SECONDPASS:
+        cpi->pass = 2;
+        cpi->compressor_speed = 1;
+
+        if (cpi->oxcf.cpu_used < -5)
+        {
+            cpi->oxcf.cpu_used = -5;
+        }
+
+        if (cpi->oxcf.cpu_used > 5)
+            cpi->oxcf.cpu_used = 5;
+
+        break;
+    case MODE_SECONDPASS_BEST:
+        cpi->pass = 2;
+        cpi->compressor_speed = 0;
+        break;
+    }
+
+    if (cpi->pass == 0)
+        cpi->auto_worst_q = 1;
+
+    cpi->oxcf.worst_allowed_q = q_trans[oxcf->worst_allowed_q];
+    cpi->oxcf.best_allowed_q = q_trans[oxcf->best_allowed_q];
+    cpi->oxcf.cq_level = q_trans[cpi->oxcf.cq_level];
+
+    if (oxcf->fixed_q >= 0)
+    {
+        if (oxcf->worst_allowed_q < 0)
+            cpi->oxcf.fixed_q = q_trans[0];
+        else
+            cpi->oxcf.fixed_q = q_trans[oxcf->worst_allowed_q];
+
+        if (oxcf->alt_q < 0)
+            cpi->oxcf.alt_q = q_trans[0];
+        else
+            cpi->oxcf.alt_q = q_trans[oxcf->alt_q];
+
+        if (oxcf->key_q < 0)
+            cpi->oxcf.key_q = q_trans[0];
+        else
+            cpi->oxcf.key_q = q_trans[oxcf->key_q];
+
+        if (oxcf->gold_q < 0)
+            cpi->oxcf.gold_q = q_trans[0];
+        else
+            cpi->oxcf.gold_q = q_trans[oxcf->gold_q];
+
+    }
+
+    cpi->baseline_gf_interval =
+        cpi->oxcf.alt_freq ? cpi->oxcf.alt_freq : DEFAULT_GF_INTERVAL;
+
+#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    cpi->oxcf.token_partitions = 3;
+#endif
+
+    if (cpi->oxcf.token_partitions >= 0 && cpi->oxcf.token_partitions <= 3)
+        cm->multi_token_partition =
+            (TOKEN_PARTITION) cpi->oxcf.token_partitions;
+
+    setup_features(cpi);
+
+    {
+        int i;
+
+        for (i = 0; i < MAX_MB_SEGMENTS; i++)
+            cpi->segment_encode_breakout[i] = cpi->oxcf.encode_breakout;
+    }
+
+    /* At the moment the first order values may not be > MAXQ */
+    if (cpi->oxcf.fixed_q > MAXQ)
+        cpi->oxcf.fixed_q = MAXQ;
+
+    /* local file playback mode == really big buffer */
+    if (cpi->oxcf.end_usage == USAGE_LOCAL_FILE_PLAYBACK)
+    {
+        cpi->oxcf.starting_buffer_level       = 60000;
+        cpi->oxcf.optimal_buffer_level        = 60000;
+        cpi->oxcf.maximum_buffer_size         = 240000;
+        cpi->oxcf.starting_buffer_level_in_ms = 60000;
+        cpi->oxcf.optimal_buffer_level_in_ms  = 60000;
+        cpi->oxcf.maximum_buffer_size_in_ms   = 240000;
+    }
+
+    /* Convert target bandwidth from Kbit/s to Bit/s */
+    cpi->oxcf.target_bandwidth       *= 1000;
+
+    cpi->oxcf.starting_buffer_level =
+        rescale((int)cpi->oxcf.starting_buffer_level,
+                cpi->oxcf.target_bandwidth, 1000);
+
+    /* Set or reset optimal and maximum buffer levels. */
+    if (cpi->oxcf.optimal_buffer_level == 0)
+        cpi->oxcf.optimal_buffer_level = cpi->oxcf.target_bandwidth / 8;
+    else
+        cpi->oxcf.optimal_buffer_level =
+            rescale((int)cpi->oxcf.optimal_buffer_level,
+                    cpi->oxcf.target_bandwidth, 1000);
+
+    if (cpi->oxcf.maximum_buffer_size == 0)
+        cpi->oxcf.maximum_buffer_size = cpi->oxcf.target_bandwidth / 8;
+    else
+        cpi->oxcf.maximum_buffer_size =
+            rescale((int)cpi->oxcf.maximum_buffer_size,
+                    cpi->oxcf.target_bandwidth, 1000);
+    // Under a configuration change, where maximum_buffer_size may change,
+    // keep buffer level clipped to the maximum allowed buffer size.
+    if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size) {
+      cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
+      cpi->buffer_level = cpi->bits_off_target;
+    }
+
+    /* Set up frame rate and related parameters rate control values. */
+    vp8_new_framerate(cpi, cpi->framerate);
+
+    /* Set absolute upper and lower quality limits */
+    cpi->worst_quality               = cpi->oxcf.worst_allowed_q;
+    cpi->best_quality                = cpi->oxcf.best_allowed_q;
+
+    /* active values should only be modified if out of new range */
+    if (cpi->active_worst_quality > cpi->oxcf.worst_allowed_q)
+    {
+      cpi->active_worst_quality = cpi->oxcf.worst_allowed_q;
+    }
+    /* less likely */
+    else if (cpi->active_worst_quality < cpi->oxcf.best_allowed_q)
+    {
+      cpi->active_worst_quality = cpi->oxcf.best_allowed_q;
+    }
+    if (cpi->active_best_quality < cpi->oxcf.best_allowed_q)
+    {
+      cpi->active_best_quality = cpi->oxcf.best_allowed_q;
+    }
+    /* less likely */
+    else if (cpi->active_best_quality > cpi->oxcf.worst_allowed_q)
+    {
+      cpi->active_best_quality = cpi->oxcf.worst_allowed_q;
+    }
+
+    cpi->buffered_mode = cpi->oxcf.optimal_buffer_level > 0;
+
+    cpi->cq_target_quality = cpi->oxcf.cq_level;
+
+    /* Only allow dropped frames in buffered mode */
+    cpi->drop_frames_allowed = cpi->oxcf.allow_df && cpi->buffered_mode;
+
+    cpi->target_bandwidth = cpi->oxcf.target_bandwidth;
+
+    // Check if the number of temporal layers has changed, and if so reset the
+    // pattern counter and set/initialize the temporal layer context for the
+    // new layer configuration.
+    if (cpi->oxcf.number_of_layers != prev_number_of_layers)
+    {
+        // If the number of temporal layers are changed we must start at the
+        // base of the pattern cycle, so set the layer id to 0 and reset
+        // the temporal pattern counter.
+        if (cpi->temporal_layer_id > 0) {
+          cpi->temporal_layer_id = 0;
+        }
+        cpi->temporal_pattern_counter = 0;
+        reset_temporal_layer_change(cpi, oxcf, prev_number_of_layers);
+    }
+
+    if (!cpi->initial_width)
+    {
+        cpi->initial_width = cpi->oxcf.Width;
+        cpi->initial_height = cpi->oxcf.Height;
+    }
+
+    cm->Width       = cpi->oxcf.Width;
+    cm->Height      = cpi->oxcf.Height;
+    assert(cm->Width <= cpi->initial_width);
+    assert(cm->Height <= cpi->initial_height);
+
+    /* TODO(jkoleszar): if an internal spatial resampling is active,
+     * and we downsize the input image, maybe we should clear the
+     * internal scale immediately rather than waiting for it to
+     * correct.
+     */
+
+    /* VP8 sharpness level mapping 0-7 (vs 0-10 in general VPx dialogs) */
+    if (cpi->oxcf.Sharpness > 7)
+        cpi->oxcf.Sharpness = 7;
+
+    cm->sharpness_level = cpi->oxcf.Sharpness;
+
+    if (cm->horiz_scale != NORMAL || cm->vert_scale != NORMAL)
+    {
+        int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
+        int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
+
+        Scale2Ratio(cm->horiz_scale, &hr, &hs);
+        Scale2Ratio(cm->vert_scale, &vr, &vs);
+
+        /* always go to the next whole number */
+        cm->Width = (hs - 1 + cpi->oxcf.Width * hr) / hs;
+        cm->Height = (vs - 1 + cpi->oxcf.Height * vr) / vs;
+    }
+
+    if (last_w != cpi->oxcf.Width || last_h != cpi->oxcf.Height)
+        cpi->force_next_frame_intra = 1;
+
+    if (((cm->Width + 15) & 0xfffffff0) !=
+          cm->yv12_fb[cm->lst_fb_idx].y_width ||
+        ((cm->Height + 15) & 0xfffffff0) !=
+          cm->yv12_fb[cm->lst_fb_idx].y_height ||
+        cm->yv12_fb[cm->lst_fb_idx].y_width == 0)
+    {
+        dealloc_raw_frame_buffers(cpi);
+        alloc_raw_frame_buffers(cpi);
+        vp8_alloc_compressor_data(cpi);
+    }
+
+    if (cpi->oxcf.fixed_q >= 0)
+    {
+        cpi->last_q[0] = cpi->oxcf.fixed_q;
+        cpi->last_q[1] = cpi->oxcf.fixed_q;
+    }
+
+    cpi->Speed = cpi->oxcf.cpu_used;
+
+    /* force to allowlag to 0 if lag_in_frames is 0; */
+    if (cpi->oxcf.lag_in_frames == 0)
+    {
+        cpi->oxcf.allow_lag = 0;
+    }
+    /* Limit on lag buffers as these are not currently dynamically allocated */
+    else if (cpi->oxcf.lag_in_frames > MAX_LAG_BUFFERS)
+        cpi->oxcf.lag_in_frames = MAX_LAG_BUFFERS;
+
+    /* YX Temp */
+    cpi->alt_ref_source = NULL;
+    cpi->is_src_frame_alt_ref = 0;
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity)
+    {
+      if (!cpi->denoiser.yv12_mc_running_avg.buffer_alloc)
+      {
+        int width = (cpi->oxcf.Width + 15) & ~15;
+        int height = (cpi->oxcf.Height + 15) & ~15;
+        vp8_denoiser_allocate(&cpi->denoiser, width, height,
+                              cm->mb_rows, cm->mb_cols,
+                              cpi->oxcf.noise_sensitivity);
+      }
+    }
+#endif
+
+#if 0
+    /* Experimental RD Code */
+    cpi->frame_distortion = 0;
+    cpi->last_frame_distortion = 0;
+#endif
+
+}
+
+#ifndef M_LOG2_E
+#define M_LOG2_E 0.693147180559945309417
+#endif
+#define log2f(x) (log (x) / (float) M_LOG2_E)
+
+static void cal_mvsadcosts(int *mvsadcost[2])
+{
+    int i = 1;
+
+    mvsadcost [0] [0] = 300;
+    mvsadcost [1] [0] = 300;
+
+    do
+    {
+        double z = 256 * (2 * (log2f(8 * i) + .6));
+        mvsadcost [0][i] = (int) z;
+        mvsadcost [1][i] = (int) z;
+        mvsadcost [0][-i] = (int) z;
+        mvsadcost [1][-i] = (int) z;
+    }
+    while (++i <= mvfp_max);
+}
+
+struct VP8_COMP* vp8_create_compressor(VP8_CONFIG *oxcf)
+{
+    int i;
+
+    VP8_COMP *cpi;
+    VP8_COMMON *cm;
+
+    cpi = vpx_memalign(32, sizeof(VP8_COMP));
+    /* Check that the CPI instance is valid */
+    if (!cpi)
+        return 0;
+
+    cm = &cpi->common;
+
+    memset(cpi, 0, sizeof(VP8_COMP));
+
+    if (setjmp(cm->error.jmp))
+    {
+        cpi->common.error.setjmp = 0;
+        vp8_remove_compressor(&cpi);
+        return 0;
+    }
+
+    cpi->common.error.setjmp = 1;
+
+    CHECK_MEM_ERROR(cpi->mb.ss, vpx_calloc(sizeof(search_site), (MAX_MVSEARCH_STEPS * 8) + 1));
+
+    vp8_create_common(&cpi->common);
+
+    init_config(cpi, oxcf);
+
+    memcpy(cpi->base_skip_false_prob, vp8cx_base_skip_false_prob, sizeof(vp8cx_base_skip_false_prob));
+    cpi->common.current_video_frame   = 0;
+    cpi->temporal_pattern_counter     = 0;
+    cpi->temporal_layer_id            = -1;
+    cpi->kf_overspend_bits            = 0;
+    cpi->kf_bitrate_adjustment        = 0;
+    cpi->frames_till_gf_update_due      = 0;
+    cpi->gf_overspend_bits            = 0;
+    cpi->non_gf_bitrate_adjustment     = 0;
+    cpi->prob_last_coded              = 128;
+    cpi->prob_gf_coded                = 128;
+    cpi->prob_intra_coded             = 63;
+
+    /* Prime the recent reference frame usage counters.
+     * Hereafter they will be maintained as a sort of moving average
+     */
+    cpi->recent_ref_frame_usage[INTRA_FRAME]  = 1;
+    cpi->recent_ref_frame_usage[LAST_FRAME]   = 1;
+    cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
+    cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
+
+    /* Set reference frame sign bias for ALTREF frame to 1 (for now) */
+    cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
+
+    cpi->twopass.gf_decay_rate = 0;
+    cpi->baseline_gf_interval = DEFAULT_GF_INTERVAL;
+
+    cpi->gold_is_last = 0 ;
+    cpi->alt_is_last  = 0 ;
+    cpi->gold_is_alt  = 0 ;
+
+    cpi->active_map_enabled = 0;
+
+#if 0
+    /* Experimental code for lagged and one pass */
+    /* Initialise one_pass GF frames stats */
+    /* Update stats used for GF selection */
+    if (cpi->pass == 0)
+    {
+        cpi->one_pass_frame_index = 0;
+
+        for (i = 0; i < MAX_LAG_BUFFERS; i++)
+        {
+            cpi->one_pass_frame_stats[i].frames_so_far = 0;
+            cpi->one_pass_frame_stats[i].frame_intra_error = 0.0;
+            cpi->one_pass_frame_stats[i].frame_coded_error = 0.0;
+            cpi->one_pass_frame_stats[i].frame_pcnt_inter = 0.0;
+            cpi->one_pass_frame_stats[i].frame_pcnt_motion = 0.0;
+            cpi->one_pass_frame_stats[i].frame_mvr = 0.0;
+            cpi->one_pass_frame_stats[i].frame_mvr_abs = 0.0;
+            cpi->one_pass_frame_stats[i].frame_mvc = 0.0;
+            cpi->one_pass_frame_stats[i].frame_mvc_abs = 0.0;
+        }
+    }
+#endif
+
+    cpi->mse_source_denoised = 0;
+
+    /* Should we use the cyclic refresh method.
+     * Currently this is tied to error resilliant mode
+     */
+    cpi->cyclic_refresh_mode_enabled = cpi->oxcf.error_resilient_mode;
+    cpi->cyclic_refresh_mode_max_mbs_perframe = (cpi->common.mb_rows * cpi->common.mb_cols) / 5;
+    if (cpi->oxcf.number_of_layers == 1) {
+        cpi->cyclic_refresh_mode_max_mbs_perframe =
+            (cpi->common.mb_rows * cpi->common.mb_cols) / 20;
+    } else if (cpi->oxcf.number_of_layers == 2) {
+        cpi->cyclic_refresh_mode_max_mbs_perframe =
+            (cpi->common.mb_rows * cpi->common.mb_cols) / 10;
+    }
+    cpi->cyclic_refresh_mode_index = 0;
+    cpi->cyclic_refresh_q = 32;
+
+    if (cpi->cyclic_refresh_mode_enabled)
+    {
+        CHECK_MEM_ERROR(cpi->cyclic_refresh_map, vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
+    }
+    else
+        cpi->cyclic_refresh_map = (signed char *) NULL;
+
+    CHECK_MEM_ERROR(cpi->consec_zero_last,
+                    vpx_calloc(cm->mb_rows * cm->mb_cols, 1));
+    CHECK_MEM_ERROR(cpi->consec_zero_last_mvbias,
+                    vpx_calloc((cpi->common.mb_rows * cpi->common.mb_cols), 1));
+
+#ifdef VP8_ENTROPY_STATS
+    init_context_counters();
+#endif
+
+    /*Initialize the feed-forward activity masking.*/
+    cpi->activity_avg = 90<<12;
+
+    /* Give a sensible default for the first frame. */
+    cpi->frames_since_key = 8;
+    cpi->key_frame_frequency = cpi->oxcf.key_freq;
+    cpi->this_key_frame_forced = 0;
+    cpi->next_key_frame_forced = 0;
+
+    cpi->source_alt_ref_pending = 0;
+    cpi->source_alt_ref_active = 0;
+    cpi->common.refresh_alt_ref_frame = 0;
+
+    cpi->force_maxqp = 0;
+
+    cpi->b_calculate_psnr = CONFIG_INTERNAL_STATS;
+#if CONFIG_INTERNAL_STATS
+    cpi->b_calculate_ssimg = 0;
+
+    cpi->count = 0;
+    cpi->bytes = 0;
+
+    if (cpi->b_calculate_psnr)
+    {
+        cpi->total_sq_error = 0.0;
+        cpi->total_sq_error2 = 0.0;
+        cpi->total_y = 0.0;
+        cpi->total_u = 0.0;
+        cpi->total_v = 0.0;
+        cpi->total = 0.0;
+        cpi->totalp_y = 0.0;
+        cpi->totalp_u = 0.0;
+        cpi->totalp_v = 0.0;
+        cpi->totalp = 0.0;
+        cpi->tot_recode_hits = 0;
+        cpi->summed_quality = 0;
+        cpi->summed_weights = 0;
+    }
+
+    if (cpi->b_calculate_ssimg)
+    {
+        cpi->total_ssimg_y = 0;
+        cpi->total_ssimg_u = 0;
+        cpi->total_ssimg_v = 0;
+        cpi->total_ssimg_all = 0;
+    }
+
+#endif
+
+    cpi->first_time_stamp_ever = 0x7FFFFFFF;
+
+    cpi->frames_till_gf_update_due      = 0;
+    cpi->key_frame_count              = 1;
+
+    cpi->ni_av_qi                     = cpi->oxcf.worst_allowed_q;
+    cpi->ni_tot_qi                    = 0;
+    cpi->ni_frames                   = 0;
+    cpi->total_byte_count             = 0;
+
+    cpi->drop_frame                  = 0;
+
+    cpi->rate_correction_factor         = 1.0;
+    cpi->key_frame_rate_correction_factor = 1.0;
+    cpi->gf_rate_correction_factor  = 1.0;
+    cpi->twopass.est_max_qcorrection_factor  = 1.0;
+
+    for (i = 0; i < KEY_FRAME_CONTEXT; i++)
+    {
+        cpi->prior_key_frame_distance[i] = (int)cpi->output_framerate;
+    }
+
+#ifdef OUTPUT_YUV_SRC
+    yuv_file = fopen("bd.yuv", "ab");
+#endif
+#ifdef OUTPUT_YUV_DENOISED
+    yuv_denoised_file = fopen("denoised.yuv", "ab");
+#endif
+
+#if 0
+    framepsnr = fopen("framepsnr.stt", "a");
+    kf_list = fopen("kf_list.stt", "w");
+#endif
+
+    cpi->output_pkt_list = oxcf->output_pkt_list;
+
+#if !(CONFIG_REALTIME_ONLY)
+
+    if (cpi->pass == 1)
+    {
+        vp8_init_first_pass(cpi);
+    }
+    else if (cpi->pass == 2)
+    {
+        size_t packet_sz = sizeof(FIRSTPASS_STATS);
+        int packets = (int)(oxcf->two_pass_stats_in.sz / packet_sz);
+
+        cpi->twopass.stats_in_start = oxcf->two_pass_stats_in.buf;
+        cpi->twopass.stats_in = cpi->twopass.stats_in_start;
+        cpi->twopass.stats_in_end = (void*)((char *)cpi->twopass.stats_in
+                            + (packets - 1) * packet_sz);
+        vp8_init_second_pass(cpi);
+    }
+
+#endif
+
+    if (cpi->compressor_speed == 2)
+    {
+        cpi->avg_encode_time      = 0;
+        cpi->avg_pick_mode_time    = 0;
+    }
+
+    vp8_set_speed_features(cpi);
+
+    /* Set starting values of RD threshold multipliers (128 = *1) */
+    for (i = 0; i < MAX_MODES; i++)
+    {
+        cpi->mb.rd_thresh_mult[i] = 128;
+    }
+
+#ifdef VP8_ENTROPY_STATS
+    init_mv_ref_counts();
+#endif
+
+#if CONFIG_MULTITHREAD
+    if(vp8cx_create_encoder_threads(cpi))
+    {
+        vp8_remove_compressor(&cpi);
+        return 0;
+    }
+#endif
+
+    cpi->fn_ptr[BLOCK_16X16].sdf            = vpx_sad16x16;
+    cpi->fn_ptr[BLOCK_16X16].vf             = vpx_variance16x16;
+    cpi->fn_ptr[BLOCK_16X16].svf            = vp8_sub_pixel_variance16x16;
+    cpi->fn_ptr[BLOCK_16X16].svf_halfpix_h  = vp8_variance_halfpixvar16x16_h;
+    cpi->fn_ptr[BLOCK_16X16].svf_halfpix_v  = vp8_variance_halfpixvar16x16_v;
+    cpi->fn_ptr[BLOCK_16X16].svf_halfpix_hv = vp8_variance_halfpixvar16x16_hv;
+    cpi->fn_ptr[BLOCK_16X16].sdx3f          = vpx_sad16x16x3;
+    cpi->fn_ptr[BLOCK_16X16].sdx8f          = vpx_sad16x16x8;
+    cpi->fn_ptr[BLOCK_16X16].sdx4df         = vpx_sad16x16x4d;
+
+    cpi->fn_ptr[BLOCK_16X8].sdf            = vpx_sad16x8;
+    cpi->fn_ptr[BLOCK_16X8].vf             = vpx_variance16x8;
+    cpi->fn_ptr[BLOCK_16X8].svf            = vp8_sub_pixel_variance16x8;
+    cpi->fn_ptr[BLOCK_16X8].svf_halfpix_h  = NULL;
+    cpi->fn_ptr[BLOCK_16X8].svf_halfpix_v  = NULL;
+    cpi->fn_ptr[BLOCK_16X8].svf_halfpix_hv = NULL;
+    cpi->fn_ptr[BLOCK_16X8].sdx3f          = vpx_sad16x8x3;
+    cpi->fn_ptr[BLOCK_16X8].sdx8f          = vpx_sad16x8x8;
+    cpi->fn_ptr[BLOCK_16X8].sdx4df         = vpx_sad16x8x4d;
+
+    cpi->fn_ptr[BLOCK_8X16].sdf            = vpx_sad8x16;
+    cpi->fn_ptr[BLOCK_8X16].vf             = vpx_variance8x16;
+    cpi->fn_ptr[BLOCK_8X16].svf            = vp8_sub_pixel_variance8x16;
+    cpi->fn_ptr[BLOCK_8X16].svf_halfpix_h  = NULL;
+    cpi->fn_ptr[BLOCK_8X16].svf_halfpix_v  = NULL;
+    cpi->fn_ptr[BLOCK_8X16].svf_halfpix_hv = NULL;
+    cpi->fn_ptr[BLOCK_8X16].sdx3f          = vpx_sad8x16x3;
+    cpi->fn_ptr[BLOCK_8X16].sdx8f          = vpx_sad8x16x8;
+    cpi->fn_ptr[BLOCK_8X16].sdx4df         = vpx_sad8x16x4d;
+
+    cpi->fn_ptr[BLOCK_8X8].sdf            = vpx_sad8x8;
+    cpi->fn_ptr[BLOCK_8X8].vf             = vpx_variance8x8;
+    cpi->fn_ptr[BLOCK_8X8].svf            = vp8_sub_pixel_variance8x8;
+    cpi->fn_ptr[BLOCK_8X8].svf_halfpix_h  = NULL;
+    cpi->fn_ptr[BLOCK_8X8].svf_halfpix_v  = NULL;
+    cpi->fn_ptr[BLOCK_8X8].svf_halfpix_hv = NULL;
+    cpi->fn_ptr[BLOCK_8X8].sdx3f          = vpx_sad8x8x3;
+    cpi->fn_ptr[BLOCK_8X8].sdx8f          = vpx_sad8x8x8;
+    cpi->fn_ptr[BLOCK_8X8].sdx4df         = vpx_sad8x8x4d;
+
+    cpi->fn_ptr[BLOCK_4X4].sdf            = vpx_sad4x4;
+    cpi->fn_ptr[BLOCK_4X4].vf             = vpx_variance4x4;
+    cpi->fn_ptr[BLOCK_4X4].svf            = vp8_sub_pixel_variance4x4;
+    cpi->fn_ptr[BLOCK_4X4].svf_halfpix_h  = NULL;
+    cpi->fn_ptr[BLOCK_4X4].svf_halfpix_v  = NULL;
+    cpi->fn_ptr[BLOCK_4X4].svf_halfpix_hv = NULL;
+    cpi->fn_ptr[BLOCK_4X4].sdx3f          = vpx_sad4x4x3;
+    cpi->fn_ptr[BLOCK_4X4].sdx8f          = vpx_sad4x4x8;
+    cpi->fn_ptr[BLOCK_4X4].sdx4df         = vpx_sad4x4x4d;
+
+#if ARCH_X86 || ARCH_X86_64
+    cpi->fn_ptr[BLOCK_16X16].copymem      = vp8_copy32xn;
+    cpi->fn_ptr[BLOCK_16X8].copymem       = vp8_copy32xn;
+    cpi->fn_ptr[BLOCK_8X16].copymem       = vp8_copy32xn;
+    cpi->fn_ptr[BLOCK_8X8].copymem        = vp8_copy32xn;
+    cpi->fn_ptr[BLOCK_4X4].copymem        = vp8_copy32xn;
+#endif
+
+    cpi->full_search_sad = vp8_full_search_sad;
+    cpi->diamond_search_sad = vp8_diamond_search_sad;
+    cpi->refining_search_sad = vp8_refining_search_sad;
+
+    /* make sure frame 1 is okay */
+    cpi->mb.error_bins[0] = cpi->common.MBs;
+
+    /* vp8cx_init_quantizer() is first called here. Add check in
+     * vp8cx_frame_init_quantizer() so that vp8cx_init_quantizer is only
+     * called later when needed. This will avoid unnecessary calls of
+     * vp8cx_init_quantizer() for every frame.
+     */
+    vp8cx_init_quantizer(cpi);
+
+    vp8_loop_filter_init(cm);
+
+    cpi->common.error.setjmp = 0;
+
+#if CONFIG_MULTI_RES_ENCODING
+
+    /* Calculate # of MBs in a row in lower-resolution level image. */
+    if (cpi->oxcf.mr_encoder_id > 0)
+        vp8_cal_low_res_mb_cols(cpi);
+
+#endif
+
+    /* setup RD costs to MACROBLOCK struct */
+
+    cpi->mb.mvcost[0] = &cpi->rd_costs.mvcosts[0][mv_max+1];
+    cpi->mb.mvcost[1] = &cpi->rd_costs.mvcosts[1][mv_max+1];
+    cpi->mb.mvsadcost[0] = &cpi->rd_costs.mvsadcosts[0][mvfp_max+1];
+    cpi->mb.mvsadcost[1] = &cpi->rd_costs.mvsadcosts[1][mvfp_max+1];
+
+    cal_mvsadcosts(cpi->mb.mvsadcost);
+
+    cpi->mb.mbmode_cost = cpi->rd_costs.mbmode_cost;
+    cpi->mb.intra_uv_mode_cost = cpi->rd_costs.intra_uv_mode_cost;
+    cpi->mb.bmode_costs = cpi->rd_costs.bmode_costs;
+    cpi->mb.inter_bmode_costs = cpi->rd_costs.inter_bmode_costs;
+    cpi->mb.token_costs = cpi->rd_costs.token_costs;
+
+    /* setup block ptrs & offsets */
+    vp8_setup_block_ptrs(&cpi->mb);
+    vp8_setup_block_dptrs(&cpi->mb.e_mbd);
+
+    return  cpi;
+}
+
+
+void vp8_remove_compressor(VP8_COMP **ptr)
+{
+    VP8_COMP *cpi = *ptr;
+
+    if (!cpi)
+        return;
+
+    if (cpi && (cpi->common.current_video_frame > 0))
+    {
+#if !(CONFIG_REALTIME_ONLY)
+
+        if (cpi->pass == 2)
+        {
+            vp8_end_second_pass(cpi);
+        }
+
+#endif
+
+#ifdef VP8_ENTROPY_STATS
+        print_context_counters();
+        print_tree_update_probs();
+        print_mode_context();
+#endif
+
+#if CONFIG_INTERNAL_STATS
+
+        if (cpi->pass != 1)
+        {
+            FILE *f = fopen("opsnr.stt", "a");
+            double time_encoded = (cpi->last_end_time_stamp_seen
+                                   - cpi->first_time_stamp_ever) / 10000000.000;
+            double total_encode_time = (cpi->time_receive_data +
+                                            cpi->time_compress_data) / 1000.000;
+            double dr = (double)cpi->bytes * 8.0 / 1000.0 / time_encoded;
+
+            if (cpi->b_calculate_psnr)
+            {
+                if (cpi->oxcf.number_of_layers > 1)
+                {
+                    int i;
+
+                    fprintf(f, "Layer\tBitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\t"
+                               "GLPsnrP\tVPXSSIM\t\n");
+                    for (i=0; i<(int)cpi->oxcf.number_of_layers; i++)
+                    {
+                        double dr = (double)cpi->bytes_in_layer[i] *
+                                              8.0 / 1000.0  / time_encoded;
+                        double samples = 3.0 / 2 * cpi->frames_in_layer[i] *
+                                         cpi->common.Width * cpi->common.Height;
+                        double total_psnr =
+                            vpx_sse_to_psnr(samples, 255.0,
+                                            cpi->total_error2[i]);
+                        double total_psnr2 =
+                            vpx_sse_to_psnr(samples, 255.0,
+                                            cpi->total_error2_p[i]);
+                        double total_ssim = 100 * pow(cpi->sum_ssim[i] /
+                                                      cpi->sum_weights[i], 8.0);
+
+                        fprintf(f, "%5d\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
+                                   "%7.3f\t%7.3f\n",
+                                   i, dr,
+                                   cpi->sum_psnr[i] / cpi->frames_in_layer[i],
+                                   total_psnr,
+                                   cpi->sum_psnr_p[i] / cpi->frames_in_layer[i],
+                                   total_psnr2, total_ssim);
+                    }
+                }
+                else
+                {
+                    double samples = 3.0 / 2 * cpi->count *
+                                     cpi->common.Width * cpi->common.Height;
+                    double total_psnr = vpx_sse_to_psnr(samples, 255.0,
+                                                        cpi->total_sq_error);
+                    double total_psnr2 = vpx_sse_to_psnr(samples, 255.0,
+                                                         cpi->total_sq_error2);
+                    double total_ssim = 100 * pow(cpi->summed_quality /
+                                                      cpi->summed_weights, 8.0);
+
+                    fprintf(f, "Bitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\t"
+                               "GLPsnrP\tVPXSSIM\t  Time(us)\n");
+                    fprintf(f, "%7.3f\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
+                               "%7.3f\t%8.0f\n",
+                               dr, cpi->total / cpi->count, total_psnr,
+                               cpi->totalp / cpi->count, total_psnr2,
+                               total_ssim, total_encode_time);
+                }
+            }
+
+            if (cpi->b_calculate_ssimg)
+            {
+                if (cpi->oxcf.number_of_layers > 1)
+                {
+                    int i;
+
+                    fprintf(f, "Layer\tBitRate\tSSIM_Y\tSSIM_U\tSSIM_V\tSSIM_A\t"
+                               "Time(us)\n");
+                    for (i=0; i<(int)cpi->oxcf.number_of_layers; i++)
+                    {
+                        double dr = (double)cpi->bytes_in_layer[i] *
+                                    8.0 / 1000.0  / time_encoded;
+                        fprintf(f, "%5d\t%7.3f\t%6.4f\t"
+                                "%6.4f\t%6.4f\t%6.4f\t%8.0f\n",
+                                i, dr,
+                                cpi->total_ssimg_y_in_layer[i] /
+                                     cpi->frames_in_layer[i],
+                                cpi->total_ssimg_u_in_layer[i] /
+                                     cpi->frames_in_layer[i],
+                                cpi->total_ssimg_v_in_layer[i] /
+                                     cpi->frames_in_layer[i],
+                                cpi->total_ssimg_all_in_layer[i] /
+                                     cpi->frames_in_layer[i],
+                                total_encode_time);
+                    }
+                }
+                else
+                {
+                    fprintf(f, "BitRate\tSSIM_Y\tSSIM_U\tSSIM_V\tSSIM_A\t"
+                               "Time(us)\n");
+                    fprintf(f, "%7.3f\t%6.4f\t%6.4f\t%6.4f\t%6.4f\t%8.0f\n", dr,
+                            cpi->total_ssimg_y / cpi->count,
+                            cpi->total_ssimg_u / cpi->count,
+                            cpi->total_ssimg_v / cpi->count,
+                            cpi->total_ssimg_all / cpi->count, total_encode_time);
+                }
+            }
+
+            fclose(f);
+#if 0
+            f = fopen("qskip.stt", "a");
+            fprintf(f, "minq:%d -maxq:%d skiptrue:skipfalse = %d:%d\n", cpi->oxcf.best_allowed_q, cpi->oxcf.worst_allowed_q, skiptruecount, skipfalsecount);
+            fclose(f);
+#endif
+
+        }
+
+#endif
+
+
+#ifdef SPEEDSTATS
+
+        if (cpi->compressor_speed == 2)
+        {
+            int i;
+            FILE *f = fopen("cxspeed.stt", "a");
+            cnt_pm /= cpi->common.MBs;
+
+            for (i = 0; i < 16; i++)
+                fprintf(f, "%5d", frames_at_speed[i]);
+
+            fprintf(f, "\n");
+            fclose(f);
+        }
+
+#endif
+
+
+#ifdef MODE_STATS
+        {
+            extern int count_mb_seg[4];
+            FILE *f = fopen("modes.stt", "a");
+            double dr = (double)cpi->framerate * (double)bytes * (double)8 / (double)count / (double)1000 ;
+            fprintf(f, "intra_mode in Intra Frames:\n");
+            fprintf(f, "Y: %8d, %8d, %8d, %8d, %8d\n", y_modes[0], y_modes[1], y_modes[2], y_modes[3], y_modes[4]);
+            fprintf(f, "UV:%8d, %8d, %8d, %8d\n", uv_modes[0], uv_modes[1], uv_modes[2], uv_modes[3]);
+            fprintf(f, "B: ");
+            {
+                int i;
+
+                for (i = 0; i < 10; i++)
+                    fprintf(f, "%8d, ", b_modes[i]);
+
+                fprintf(f, "\n");
+
+            }
+
+            fprintf(f, "Modes in Inter Frames:\n");
+            fprintf(f, "Y: %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d, %8d\n",
+                    inter_y_modes[0], inter_y_modes[1], inter_y_modes[2], inter_y_modes[3], inter_y_modes[4],
+                    inter_y_modes[5], inter_y_modes[6], inter_y_modes[7], inter_y_modes[8], inter_y_modes[9]);
+            fprintf(f, "UV:%8d, %8d, %8d, %8d\n", inter_uv_modes[0], inter_uv_modes[1], inter_uv_modes[2], inter_uv_modes[3]);
+            fprintf(f, "B: ");
+            {
+                int i;
+
+                for (i = 0; i < 15; i++)
+                    fprintf(f, "%8d, ", inter_b_modes[i]);
+
+                fprintf(f, "\n");
+
+            }
+            fprintf(f, "P:%8d, %8d, %8d, %8d\n", count_mb_seg[0], count_mb_seg[1], count_mb_seg[2], count_mb_seg[3]);
+            fprintf(f, "PB:%8d, %8d, %8d, %8d\n", inter_b_modes[LEFT4X4], inter_b_modes[ABOVE4X4], inter_b_modes[ZERO4X4], inter_b_modes[NEW4X4]);
+
+
+
+            fclose(f);
+        }
+#endif
+
+#ifdef VP8_ENTROPY_STATS
+        {
+            int i, j, k;
+            FILE *fmode = fopen("modecontext.c", "w");
+
+            fprintf(fmode, "\n#include \"entropymode.h\"\n\n");
+            fprintf(fmode, "const unsigned int vp8_kf_default_bmode_counts ");
+            fprintf(fmode, "[VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES] =\n{\n");
+
+            for (i = 0; i < 10; i++)
+            {
+
+                fprintf(fmode, "    { /* Above Mode :  %d */\n", i);
+
+                for (j = 0; j < 10; j++)
+                {
+
+                    fprintf(fmode, "        {");
+
+                    for (k = 0; k < 10; k++)
+                    {
+                        if (!intra_mode_stats[i][j][k])
+                            fprintf(fmode, " %5d, ", 1);
+                        else
+                            fprintf(fmode, " %5d, ", intra_mode_stats[i][j][k]);
+                    }
+
+                    fprintf(fmode, "}, /* left_mode %d */\n", j);
+
+                }
+
+                fprintf(fmode, "    },\n");
+
+            }
+
+            fprintf(fmode, "};\n");
+            fclose(fmode);
+        }
+#endif
+
+
+#if defined(SECTIONBITS_OUTPUT)
+
+        if (0)
+        {
+            int i;
+            FILE *f = fopen("tokenbits.stt", "a");
+
+            for (i = 0; i < 28; i++)
+                fprintf(f, "%8d", (int)(Sectionbits[i] / 256));
+
+            fprintf(f, "\n");
+            fclose(f);
+        }
+
+#endif
+
+#if 0
+        {
+            printf("\n_pick_loop_filter_level:%d\n", cpi->time_pick_lpf / 1000);
+            printf("\n_frames recive_data encod_mb_row compress_frame  Total\n");
+            printf("%6d %10ld %10ld %10ld %10ld\n", cpi->common.current_video_frame, cpi->time_receive_data / 1000, cpi->time_encode_mb_row / 1000, cpi->time_compress_data / 1000, (cpi->time_receive_data + cpi->time_compress_data) / 1000);
+        }
+#endif
+
+    }
+
+#if CONFIG_MULTITHREAD
+    vp8cx_remove_encoder_threads(cpi);
+#endif
+
+#if CONFIG_TEMPORAL_DENOISING
+    vp8_denoiser_free(&cpi->denoiser);
+#endif
+    dealloc_compressor_data(cpi);
+    vpx_free(cpi->mb.ss);
+    vpx_free(cpi->tok);
+    vpx_free(cpi->cyclic_refresh_map);
+    vpx_free(cpi->consec_zero_last);
+    vpx_free(cpi->consec_zero_last_mvbias);
+
+    vp8_remove_common(&cpi->common);
+    vpx_free(cpi);
+    *ptr = 0;
+
+#ifdef OUTPUT_YUV_SRC
+    fclose(yuv_file);
+#endif
+#ifdef OUTPUT_YUV_DENOISED
+    fclose(yuv_denoised_file);
+#endif
+
+#if 0
+
+    if (keyfile)
+        fclose(keyfile);
+
+    if (framepsnr)
+        fclose(framepsnr);
+
+    if (kf_list)
+        fclose(kf_list);
+
+#endif
+
+}
+
+
+static uint64_t calc_plane_error(unsigned char *orig, int orig_stride,
+                                 unsigned char *recon, int recon_stride,
+                                 unsigned int cols, unsigned int rows)
+{
+    unsigned int row, col;
+    uint64_t total_sse = 0;
+    int diff;
+
+    for (row = 0; row + 16 <= rows; row += 16)
+    {
+        for (col = 0; col + 16 <= cols; col += 16)
+        {
+            unsigned int sse;
+
+            vpx_mse16x16(orig + col, orig_stride,
+                                            recon + col, recon_stride,
+                                            &sse);
+            total_sse += sse;
+        }
+
+        /* Handle odd-sized width */
+        if (col < cols)
+        {
+            unsigned int   border_row, border_col;
+            unsigned char *border_orig = orig;
+            unsigned char *border_recon = recon;
+
+            for (border_row = 0; border_row < 16; border_row++)
+            {
+                for (border_col = col; border_col < cols; border_col++)
+                {
+                    diff = border_orig[border_col] - border_recon[border_col];
+                    total_sse += diff * diff;
+                }
+
+                border_orig += orig_stride;
+                border_recon += recon_stride;
+            }
+        }
+
+        orig += orig_stride * 16;
+        recon += recon_stride * 16;
+    }
+
+    /* Handle odd-sized height */
+    for (; row < rows; row++)
+    {
+        for (col = 0; col < cols; col++)
+        {
+            diff = orig[col] - recon[col];
+            total_sse += diff * diff;
+        }
+
+        orig += orig_stride;
+        recon += recon_stride;
+    }
+
+    vp8_clear_system_state();
+    return total_sse;
+}
+
+
+static void generate_psnr_packet(VP8_COMP *cpi)
+{
+    YV12_BUFFER_CONFIG      *orig = cpi->Source;
+    YV12_BUFFER_CONFIG      *recon = cpi->common.frame_to_show;
+    struct vpx_codec_cx_pkt  pkt;
+    uint64_t                 sse;
+    int                      i;
+    unsigned int             width = cpi->common.Width;
+    unsigned int             height = cpi->common.Height;
+
+    pkt.kind = VPX_CODEC_PSNR_PKT;
+    sse = calc_plane_error(orig->y_buffer, orig->y_stride,
+                           recon->y_buffer, recon->y_stride,
+                           width, height);
+    pkt.data.psnr.sse[0] = sse;
+    pkt.data.psnr.sse[1] = sse;
+    pkt.data.psnr.samples[0] = width * height;
+    pkt.data.psnr.samples[1] = width * height;
+
+    width = (width + 1) / 2;
+    height = (height + 1) / 2;
+
+    sse = calc_plane_error(orig->u_buffer, orig->uv_stride,
+                           recon->u_buffer, recon->uv_stride,
+                           width, height);
+    pkt.data.psnr.sse[0] += sse;
+    pkt.data.psnr.sse[2] = sse;
+    pkt.data.psnr.samples[0] += width * height;
+    pkt.data.psnr.samples[2] = width * height;
+
+    sse = calc_plane_error(orig->v_buffer, orig->uv_stride,
+                           recon->v_buffer, recon->uv_stride,
+                           width, height);
+    pkt.data.psnr.sse[0] += sse;
+    pkt.data.psnr.sse[3] = sse;
+    pkt.data.psnr.samples[0] += width * height;
+    pkt.data.psnr.samples[3] = width * height;
+
+    for (i = 0; i < 4; i++)
+        pkt.data.psnr.psnr[i] = vpx_sse_to_psnr(pkt.data.psnr.samples[i], 255.0,
+                                                (double)(pkt.data.psnr.sse[i]));
+
+    vpx_codec_pkt_list_add(cpi->output_pkt_list, &pkt);
+}
+
+
+int vp8_use_as_reference(VP8_COMP *cpi, int ref_frame_flags)
+{
+    if (ref_frame_flags > 7)
+        return -1 ;
+
+    cpi->ref_frame_flags = ref_frame_flags;
+    return 0;
+}
+int vp8_update_reference(VP8_COMP *cpi, int ref_frame_flags)
+{
+    if (ref_frame_flags > 7)
+        return -1 ;
+
+    cpi->common.refresh_golden_frame = 0;
+    cpi->common.refresh_alt_ref_frame = 0;
+    cpi->common.refresh_last_frame   = 0;
+
+    if (ref_frame_flags & VP8_LAST_FRAME)
+        cpi->common.refresh_last_frame = 1;
+
+    if (ref_frame_flags & VP8_GOLD_FRAME)
+        cpi->common.refresh_golden_frame = 1;
+
+    if (ref_frame_flags & VP8_ALTR_FRAME)
+        cpi->common.refresh_alt_ref_frame = 1;
+
+    return 0;
+}
+
+int vp8_get_reference(VP8_COMP *cpi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
+{
+    VP8_COMMON *cm = &cpi->common;
+    int ref_fb_idx;
+
+    if (ref_frame_flag == VP8_LAST_FRAME)
+        ref_fb_idx = cm->lst_fb_idx;
+    else if (ref_frame_flag == VP8_GOLD_FRAME)
+        ref_fb_idx = cm->gld_fb_idx;
+    else if (ref_frame_flag == VP8_ALTR_FRAME)
+        ref_fb_idx = cm->alt_fb_idx;
+    else
+        return -1;
+
+    vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
+
+    return 0;
+}
+int vp8_set_reference(VP8_COMP *cpi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    int ref_fb_idx;
+
+    if (ref_frame_flag == VP8_LAST_FRAME)
+        ref_fb_idx = cm->lst_fb_idx;
+    else if (ref_frame_flag == VP8_GOLD_FRAME)
+        ref_fb_idx = cm->gld_fb_idx;
+    else if (ref_frame_flag == VP8_ALTR_FRAME)
+        ref_fb_idx = cm->alt_fb_idx;
+    else
+        return -1;
+
+    vp8_yv12_copy_frame(sd, &cm->yv12_fb[ref_fb_idx]);
+
+    return 0;
+}
+int vp8_update_entropy(VP8_COMP *cpi, int update)
+{
+    VP8_COMMON *cm = &cpi->common;
+    cm->refresh_entropy_probs = update;
+
+    return 0;
+}
+
+
+#if defined(OUTPUT_YUV_SRC) || defined(OUTPUT_YUV_DENOISED)
+void vp8_write_yuv_frame(FILE *yuv_file, YV12_BUFFER_CONFIG *s)
+{
+    unsigned char *src = s->y_buffer;
+    int h = s->y_height;
+
+    do
+    {
+        fwrite(src, s->y_width, 1,  yuv_file);
+        src += s->y_stride;
+    }
+    while (--h);
+
+    src = s->u_buffer;
+    h = s->uv_height;
+
+    do
+    {
+        fwrite(src, s->uv_width, 1,  yuv_file);
+        src += s->uv_stride;
+    }
+    while (--h);
+
+    src = s->v_buffer;
+    h = s->uv_height;
+
+    do
+    {
+        fwrite(src, s->uv_width, 1, yuv_file);
+        src += s->uv_stride;
+    }
+    while (--h);
+}
+#endif
+
+static void scale_and_extend_source(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    /* are we resizing the image */
+    if (cm->horiz_scale != 0 || cm->vert_scale != 0)
+    {
+#if CONFIG_SPATIAL_RESAMPLING
+        int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
+        int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
+        int tmp_height;
+
+        if (cm->vert_scale == 3)
+            tmp_height = 9;
+        else
+            tmp_height = 11;
+
+        Scale2Ratio(cm->horiz_scale, &hr, &hs);
+        Scale2Ratio(cm->vert_scale, &vr, &vs);
+
+        vpx_scale_frame(sd, &cpi->scaled_source, cm->temp_scale_frame.y_buffer,
+                        tmp_height, hs, hr, vs, vr, 0);
+
+        vp8_yv12_extend_frame_borders(&cpi->scaled_source);
+        cpi->Source = &cpi->scaled_source;
+#endif
+    }
+    else
+        cpi->Source = sd;
+}
+
+
+static int resize_key_frame(VP8_COMP *cpi)
+{
+#if CONFIG_SPATIAL_RESAMPLING
+    VP8_COMMON *cm = &cpi->common;
+
+    /* Do we need to apply resampling for one pass cbr.
+     * In one pass this is more limited than in two pass cbr.
+     * The test and any change is only made once per key frame sequence.
+     */
+    if (cpi->oxcf.allow_spatial_resampling && (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER))
+    {
+        int UNINITIALIZED_IS_SAFE(hr), UNINITIALIZED_IS_SAFE(hs);
+        int UNINITIALIZED_IS_SAFE(vr), UNINITIALIZED_IS_SAFE(vs);
+        int new_width, new_height;
+
+        /* If we are below the resample DOWN watermark then scale down a
+         * notch.
+         */
+        if (cpi->buffer_level < (cpi->oxcf.resample_down_water_mark * cpi->oxcf.optimal_buffer_level / 100))
+        {
+            cm->horiz_scale = (cm->horiz_scale < ONETWO) ? cm->horiz_scale + 1 : ONETWO;
+            cm->vert_scale = (cm->vert_scale < ONETWO) ? cm->vert_scale + 1 : ONETWO;
+        }
+        /* Should we now start scaling back up */
+        else if (cpi->buffer_level > (cpi->oxcf.resample_up_water_mark * cpi->oxcf.optimal_buffer_level / 100))
+        {
+            cm->horiz_scale = (cm->horiz_scale > NORMAL) ? cm->horiz_scale - 1 : NORMAL;
+            cm->vert_scale = (cm->vert_scale > NORMAL) ? cm->vert_scale - 1 : NORMAL;
+        }
+
+        /* Get the new height and width */
+        Scale2Ratio(cm->horiz_scale, &hr, &hs);
+        Scale2Ratio(cm->vert_scale, &vr, &vs);
+        new_width = ((hs - 1) + (cpi->oxcf.Width * hr)) / hs;
+        new_height = ((vs - 1) + (cpi->oxcf.Height * vr)) / vs;
+
+        /* If the image size has changed we need to reallocate the buffers
+         * and resample the source image
+         */
+        if ((cm->Width != new_width) || (cm->Height != new_height))
+        {
+            cm->Width = new_width;
+            cm->Height = new_height;
+            vp8_alloc_compressor_data(cpi);
+            scale_and_extend_source(cpi->un_scaled_source, cpi);
+            return 1;
+        }
+    }
+
+#endif
+    return 0;
+}
+
+
+static void update_alt_ref_frame_stats(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    /* Select an interval before next GF or altref */
+    if (!cpi->auto_gold)
+        cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
+
+    if ((cpi->pass != 2) && cpi->frames_till_gf_update_due)
+    {
+        cpi->current_gf_interval = cpi->frames_till_gf_update_due;
+
+        /* Set the bits per frame that we should try and recover in
+         * subsequent inter frames to account for the extra GF spend...
+         * note that his does not apply for GF updates that occur
+         * coincident with a key frame as the extra cost of key frames is
+         * dealt with elsewhere.
+         */
+        cpi->gf_overspend_bits += cpi->projected_frame_size;
+        cpi->non_gf_bitrate_adjustment = cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
+    }
+
+    /* Update data structure that monitors level of reference to last GF */
+    memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
+    cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+
+    /* this frame refreshes means next frames don't unless specified by user */
+    cpi->frames_since_golden = 0;
+
+    /* Clear the alternate reference update pending flag. */
+    cpi->source_alt_ref_pending = 0;
+
+    /* Set the alternate reference frame active flag */
+    cpi->source_alt_ref_active = 1;
+
+
+}
+static void update_golden_frame_stats(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    /* Update the Golden frame usage counts. */
+    if (cm->refresh_golden_frame)
+    {
+        /* Select an interval before next GF */
+        if (!cpi->auto_gold)
+            cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
+
+        if ((cpi->pass != 2) && (cpi->frames_till_gf_update_due > 0))
+        {
+            cpi->current_gf_interval = cpi->frames_till_gf_update_due;
+
+            /* Set the bits per frame that we should try and recover in
+             * subsequent inter frames to account for the extra GF spend...
+             * note that his does not apply for GF updates that occur
+             * coincident with a key frame as the extra cost of key frames
+             * is dealt with elsewhere.
+             */
+            if ((cm->frame_type != KEY_FRAME) && !cpi->source_alt_ref_active)
+            {
+                /* Calcluate GF bits to be recovered
+                 * Projected size - av frame bits available for inter
+                 * frames for clip as a whole
+                 */
+                cpi->gf_overspend_bits += (cpi->projected_frame_size - cpi->inter_frame_target);
+            }
+
+            cpi->non_gf_bitrate_adjustment = cpi->gf_overspend_bits / cpi->frames_till_gf_update_due;
+
+        }
+
+        /* Update data structure that monitors level of reference to last GF */
+        memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
+        cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+
+        /* this frame refreshes means next frames don't unless specified by
+         * user
+         */
+        cm->refresh_golden_frame = 0;
+        cpi->frames_since_golden = 0;
+
+        cpi->recent_ref_frame_usage[INTRA_FRAME] = 1;
+        cpi->recent_ref_frame_usage[LAST_FRAME] = 1;
+        cpi->recent_ref_frame_usage[GOLDEN_FRAME] = 1;
+        cpi->recent_ref_frame_usage[ALTREF_FRAME] = 1;
+
+        /* ******** Fixed Q test code only ************ */
+        /* If we are going to use the ALT reference for the next group of
+         * frames set a flag to say so.
+         */
+        if (cpi->oxcf.fixed_q >= 0 &&
+            cpi->oxcf.play_alternate && !cpi->common.refresh_alt_ref_frame)
+        {
+            cpi->source_alt_ref_pending = 1;
+            cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+        }
+
+        if (!cpi->source_alt_ref_pending)
+            cpi->source_alt_ref_active = 0;
+
+        /* Decrement count down till next gf */
+        if (cpi->frames_till_gf_update_due > 0)
+            cpi->frames_till_gf_update_due--;
+
+    }
+    else if (!cpi->common.refresh_alt_ref_frame)
+    {
+        /* Decrement count down till next gf */
+        if (cpi->frames_till_gf_update_due > 0)
+            cpi->frames_till_gf_update_due--;
+
+        if (cpi->frames_till_alt_ref_frame)
+            cpi->frames_till_alt_ref_frame --;
+
+        cpi->frames_since_golden ++;
+
+        if (cpi->frames_since_golden > 1)
+        {
+            cpi->recent_ref_frame_usage[INTRA_FRAME] +=
+                cpi->mb.count_mb_ref_frame_usage[INTRA_FRAME];
+            cpi->recent_ref_frame_usage[LAST_FRAME] +=
+                cpi->mb.count_mb_ref_frame_usage[LAST_FRAME];
+            cpi->recent_ref_frame_usage[GOLDEN_FRAME] +=
+                cpi->mb.count_mb_ref_frame_usage[GOLDEN_FRAME];
+            cpi->recent_ref_frame_usage[ALTREF_FRAME] +=
+                cpi->mb.count_mb_ref_frame_usage[ALTREF_FRAME];
+        }
+    }
+}
+
+/* This function updates the reference frame probability estimates that
+ * will be used during mode selection
+ */
+static void update_rd_ref_frame_probs(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    const int *const rfct = cpi->mb.count_mb_ref_frame_usage;
+    const int rf_intra = rfct[INTRA_FRAME];
+    const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
+
+    if (cm->frame_type == KEY_FRAME)
+    {
+        cpi->prob_intra_coded = 255;
+        cpi->prob_last_coded  = 128;
+        cpi->prob_gf_coded  = 128;
+    }
+    else if (!(rf_intra + rf_inter))
+    {
+        cpi->prob_intra_coded = 63;
+        cpi->prob_last_coded  = 128;
+        cpi->prob_gf_coded    = 128;
+    }
+
+    /* update reference frame costs since we can do better than what we got
+     * last frame.
+     */
+    if (cpi->oxcf.number_of_layers == 1)
+    {
+        if (cpi->common.refresh_alt_ref_frame)
+        {
+            cpi->prob_intra_coded += 40;
+            if (cpi->prob_intra_coded > 255)
+                cpi->prob_intra_coded = 255;
+            cpi->prob_last_coded = 200;
+            cpi->prob_gf_coded = 1;
+        }
+        else if (cpi->frames_since_golden == 0)
+        {
+            cpi->prob_last_coded = 214;
+        }
+        else if (cpi->frames_since_golden == 1)
+        {
+            cpi->prob_last_coded = 192;
+            cpi->prob_gf_coded = 220;
+        }
+        else if (cpi->source_alt_ref_active)
+        {
+            cpi->prob_gf_coded -= 20;
+
+            if (cpi->prob_gf_coded < 10)
+                cpi->prob_gf_coded = 10;
+        }
+        if (!cpi->source_alt_ref_active)
+            cpi->prob_gf_coded = 255;
+    }
+}
+
+
+/* 1 = key, 0 = inter */
+static int decide_key_frame(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    int code_key_frame = 0;
+
+    cpi->kf_boost = 0;
+
+    if (cpi->Speed > 11)
+        return 0;
+
+    /* Clear down mmx registers */
+    vp8_clear_system_state();
+
+    if ((cpi->compressor_speed == 2) && (cpi->Speed >= 5) && (cpi->sf.RD == 0))
+    {
+        double change = 1.0 * abs((int)(cpi->mb.intra_error -
+            cpi->last_intra_error)) / (1 + cpi->last_intra_error);
+        double change2 = 1.0 * abs((int)(cpi->mb.prediction_error -
+            cpi->last_prediction_error)) / (1 + cpi->last_prediction_error);
+        double minerror = cm->MBs * 256;
+
+        cpi->last_intra_error = cpi->mb.intra_error;
+        cpi->last_prediction_error = cpi->mb.prediction_error;
+
+        if (10 * cpi->mb.intra_error / (1 + cpi->mb.prediction_error) < 15
+            && cpi->mb.prediction_error > minerror
+            && (change > .25 || change2 > .25))
+        {
+            /*(change > 1.4 || change < .75)&& cpi->this_frame_percent_intra > cpi->last_frame_percent_intra + 3*/
+            return 1;
+        }
+
+        return 0;
+
+    }
+
+    /* If the following are true we might as well code a key frame */
+    if (((cpi->this_frame_percent_intra == 100) &&
+         (cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra + 2))) ||
+        ((cpi->this_frame_percent_intra > 95) &&
+         (cpi->this_frame_percent_intra >= (cpi->last_frame_percent_intra + 5))))
+    {
+        code_key_frame = 1;
+    }
+    /* in addition if the following are true and this is not a golden frame
+     * then code a key frame Note that on golden frames there often seems
+     * to be a pop in intra useage anyway hence this restriction is
+     * designed to prevent spurious key frames. The Intra pop needs to be
+     * investigated.
+     */
+    else if (((cpi->this_frame_percent_intra > 60) &&
+              (cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra * 2))) ||
+             ((cpi->this_frame_percent_intra > 75) &&
+              (cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra * 3 / 2))) ||
+             ((cpi->this_frame_percent_intra > 90) &&
+              (cpi->this_frame_percent_intra > (cpi->last_frame_percent_intra + 10))))
+    {
+        if (!cm->refresh_golden_frame)
+            code_key_frame = 1;
+    }
+
+    return code_key_frame;
+
+}
+
+#if !(CONFIG_REALTIME_ONLY)
+static void Pass1Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest, unsigned int *frame_flags)
+{
+    (void) size;
+    (void) dest;
+    (void) frame_flags;
+    vp8_set_quantizer(cpi, 26);
+
+    vp8_first_pass(cpi);
+}
+#endif
+
+#if 0
+void write_cx_frame_to_file(YV12_BUFFER_CONFIG *frame, int this_frame)
+{
+
+    /* write the frame */
+    FILE *yframe;
+    int i;
+    char filename[255];
+
+    sprintf(filename, "cx\\y%04d.raw", this_frame);
+    yframe = fopen(filename, "wb");
+
+    for (i = 0; i < frame->y_height; i++)
+        fwrite(frame->y_buffer + i * frame->y_stride, frame->y_width, 1, yframe);
+
+    fclose(yframe);
+    sprintf(filename, "cx\\u%04d.raw", this_frame);
+    yframe = fopen(filename, "wb");
+
+    for (i = 0; i < frame->uv_height; i++)
+        fwrite(frame->u_buffer + i * frame->uv_stride, frame->uv_width, 1, yframe);
+
+    fclose(yframe);
+    sprintf(filename, "cx\\v%04d.raw", this_frame);
+    yframe = fopen(filename, "wb");
+
+    for (i = 0; i < frame->uv_height; i++)
+        fwrite(frame->v_buffer + i * frame->uv_stride, frame->uv_width, 1, yframe);
+
+    fclose(yframe);
+}
+#endif
+/* return of 0 means drop frame */
+
+/* Function to test for conditions that indeicate we should loop
+ * back and recode a frame.
+ */
+static int recode_loop_test( VP8_COMP *cpi,
+                              int high_limit, int low_limit,
+                              int q, int maxq, int minq )
+{
+    int force_recode = 0;
+    VP8_COMMON *cm = &cpi->common;
+
+    /* Is frame recode allowed at all
+     * Yes if either recode mode 1 is selected or mode two is selcted
+     * and the frame is a key frame. golden frame or alt_ref_frame
+     */
+    if ( (cpi->sf.recode_loop == 1) ||
+         ( (cpi->sf.recode_loop == 2) &&
+           ( (cm->frame_type == KEY_FRAME) ||
+             cm->refresh_golden_frame ||
+             cm->refresh_alt_ref_frame ) ) )
+    {
+        /* General over and under shoot tests */
+        if ( ((cpi->projected_frame_size > high_limit) && (q < maxq)) ||
+             ((cpi->projected_frame_size < low_limit) && (q > minq)) )
+        {
+            force_recode = 1;
+        }
+        /* Special Constrained quality tests */
+        else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
+        {
+            /* Undershoot and below auto cq level */
+            if ( (q > cpi->cq_target_quality) &&
+                 (cpi->projected_frame_size <
+                     ((cpi->this_frame_target * 7) >> 3)))
+            {
+                force_recode = 1;
+            }
+            /* Severe undershoot and between auto and user cq level */
+            else if ( (q > cpi->oxcf.cq_level) &&
+                      (cpi->projected_frame_size < cpi->min_frame_bandwidth) &&
+                      (cpi->active_best_quality > cpi->oxcf.cq_level))
+            {
+                force_recode = 1;
+                cpi->active_best_quality = cpi->oxcf.cq_level;
+            }
+        }
+    }
+
+    return force_recode;
+}
+
+static void update_reference_frames(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+    YV12_BUFFER_CONFIG *yv12_fb = cm->yv12_fb;
+
+    /* At this point the new frame has been encoded.
+     * If any buffer copy / swapping is signaled it should be done here.
+     */
+
+    if (cm->frame_type == KEY_FRAME)
+    {
+        yv12_fb[cm->new_fb_idx].flags |= VP8_GOLD_FRAME | VP8_ALTR_FRAME ;
+
+        yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+        yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+
+        cm->alt_fb_idx = cm->gld_fb_idx = cm->new_fb_idx;
+
+        cpi->current_ref_frames[GOLDEN_FRAME] = cm->current_video_frame;
+        cpi->current_ref_frames[ALTREF_FRAME] = cm->current_video_frame;
+    }
+    else    /* For non key frames */
+    {
+        if (cm->refresh_alt_ref_frame)
+        {
+            assert(!cm->copy_buffer_to_arf);
+
+            cm->yv12_fb[cm->new_fb_idx].flags |= VP8_ALTR_FRAME;
+            cm->yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+            cm->alt_fb_idx = cm->new_fb_idx;
+
+            cpi->current_ref_frames[ALTREF_FRAME] = cm->current_video_frame;
+        }
+        else if (cm->copy_buffer_to_arf)
+        {
+            assert(!(cm->copy_buffer_to_arf & ~0x3));
+
+            if (cm->copy_buffer_to_arf == 1)
+            {
+                if(cm->alt_fb_idx != cm->lst_fb_idx)
+                {
+                    yv12_fb[cm->lst_fb_idx].flags |= VP8_ALTR_FRAME;
+                    yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+                    cm->alt_fb_idx = cm->lst_fb_idx;
+
+                    cpi->current_ref_frames[ALTREF_FRAME] =
+                        cpi->current_ref_frames[LAST_FRAME];
+                }
+            }
+            else /* if (cm->copy_buffer_to_arf == 2) */
+            {
+                if(cm->alt_fb_idx != cm->gld_fb_idx)
+                {
+                    yv12_fb[cm->gld_fb_idx].flags |= VP8_ALTR_FRAME;
+                    yv12_fb[cm->alt_fb_idx].flags &= ~VP8_ALTR_FRAME;
+                    cm->alt_fb_idx = cm->gld_fb_idx;
+
+                    cpi->current_ref_frames[ALTREF_FRAME] =
+                        cpi->current_ref_frames[GOLDEN_FRAME];
+                }
+            }
+        }
+
+        if (cm->refresh_golden_frame)
+        {
+            assert(!cm->copy_buffer_to_gf);
+
+            cm->yv12_fb[cm->new_fb_idx].flags |= VP8_GOLD_FRAME;
+            cm->yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+            cm->gld_fb_idx = cm->new_fb_idx;
+
+            cpi->current_ref_frames[GOLDEN_FRAME] = cm->current_video_frame;
+        }
+        else if (cm->copy_buffer_to_gf)
+        {
+            assert(!(cm->copy_buffer_to_arf & ~0x3));
+
+            if (cm->copy_buffer_to_gf == 1)
+            {
+                if(cm->gld_fb_idx != cm->lst_fb_idx)
+                {
+                    yv12_fb[cm->lst_fb_idx].flags |= VP8_GOLD_FRAME;
+                    yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+                    cm->gld_fb_idx = cm->lst_fb_idx;
+
+                    cpi->current_ref_frames[GOLDEN_FRAME] =
+                        cpi->current_ref_frames[LAST_FRAME];
+                }
+            }
+            else /* if (cm->copy_buffer_to_gf == 2) */
+            {
+                if(cm->alt_fb_idx != cm->gld_fb_idx)
+                {
+                    yv12_fb[cm->alt_fb_idx].flags |= VP8_GOLD_FRAME;
+                    yv12_fb[cm->gld_fb_idx].flags &= ~VP8_GOLD_FRAME;
+                    cm->gld_fb_idx = cm->alt_fb_idx;
+
+                    cpi->current_ref_frames[GOLDEN_FRAME] =
+                        cpi->current_ref_frames[ALTREF_FRAME];
+                }
+            }
+        }
+    }
+
+    if (cm->refresh_last_frame)
+    {
+        cm->yv12_fb[cm->new_fb_idx].flags |= VP8_LAST_FRAME;
+        cm->yv12_fb[cm->lst_fb_idx].flags &= ~VP8_LAST_FRAME;
+        cm->lst_fb_idx = cm->new_fb_idx;
+
+        cpi->current_ref_frames[LAST_FRAME] = cm->current_video_frame;
+    }
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity)
+    {
+        /* we shouldn't have to keep multiple copies as we know in advance which
+         * buffer we should start - for now to get something up and running
+         * I've chosen to copy the buffers
+         */
+        if (cm->frame_type == KEY_FRAME)
+        {
+            int i;
+            for (i = LAST_FRAME; i < MAX_REF_FRAMES; ++i)
+              vp8_yv12_copy_frame(cpi->Source,
+                                  &cpi->denoiser.yv12_running_avg[i]);
+        }
+        else /* For non key frames */
+        {
+            vp8_yv12_extend_frame_borders(
+                    &cpi->denoiser.yv12_running_avg[INTRA_FRAME]);
+
+            if (cm->refresh_alt_ref_frame || cm->copy_buffer_to_arf)
+            {
+                vp8_yv12_copy_frame(
+                        &cpi->denoiser.yv12_running_avg[INTRA_FRAME],
+                        &cpi->denoiser.yv12_running_avg[ALTREF_FRAME]);
+            }
+            if (cm->refresh_golden_frame || cm->copy_buffer_to_gf)
+            {
+                vp8_yv12_copy_frame(
+                        &cpi->denoiser.yv12_running_avg[INTRA_FRAME],
+                        &cpi->denoiser.yv12_running_avg[GOLDEN_FRAME]);
+            }
+            if(cm->refresh_last_frame)
+            {
+                vp8_yv12_copy_frame(
+                        &cpi->denoiser.yv12_running_avg[INTRA_FRAME],
+                        &cpi->denoiser.yv12_running_avg[LAST_FRAME]);
+            }
+        }
+        if (cpi->oxcf.noise_sensitivity == 4)
+          vp8_yv12_copy_frame(cpi->Source, &cpi->denoiser.yv12_last_source);
+
+    }
+#endif
+
+}
+
+static int measure_square_diff_partial(YV12_BUFFER_CONFIG *source,
+                                       YV12_BUFFER_CONFIG *dest,
+                                       VP8_COMP *cpi)
+    {
+        int i, j;
+        int Total = 0;
+        int num_blocks = 0;
+        int skip = 2;
+        int min_consec_zero_last = 10;
+        int tot_num_blocks = (source->y_height * source->y_width) >> 8;
+        unsigned char *src = source->y_buffer;
+        unsigned char *dst = dest->y_buffer;
+
+        /* Loop through the Y plane, every |skip| blocks along rows and colmumns,
+         * summing the square differences, and only for blocks that have been
+         * zero_last mode at least |x| frames in a row.
+         */
+        for (i = 0; i < source->y_height; i += 16 * skip)
+        {
+            int block_index_row = (i >> 4) * cpi->common.mb_cols;
+            for (j = 0; j < source->y_width; j += 16 * skip)
+            {
+                int index = block_index_row + (j >> 4);
+                if (cpi->consec_zero_last[index] >= min_consec_zero_last) {
+                  unsigned int sse;
+                  Total += vpx_mse16x16(src + j,
+                                        source->y_stride,
+                                        dst + j, dest->y_stride,
+                                        &sse);
+                  num_blocks++;
+                }
+            }
+            src += 16 * skip * source->y_stride;
+            dst += 16 * skip * dest->y_stride;
+        }
+        // Only return non-zero if we have at least ~1/16 samples for estimate.
+        if (num_blocks > (tot_num_blocks >> 4)) {
+        return (Total / num_blocks);
+        } else {
+          return 0;
+        }
+    }
+
+#if CONFIG_TEMPORAL_DENOISING
+static void process_denoiser_mode_change(VP8_COMP *cpi) {
+  const VP8_COMMON *const cm = &cpi->common;
+  int i, j;
+  int total = 0;
+  int num_blocks = 0;
+  // Number of blocks skipped along row/column in computing the
+  // nmse (normalized mean square error) of source.
+  int skip = 2;
+  // Only select blocks for computing nmse that have been encoded
+  // as ZERO LAST min_consec_zero_last frames in a row.
+  // Scale with number of temporal layers.
+  int min_consec_zero_last = 12 / cpi->oxcf.number_of_layers;
+  // Decision is tested for changing the denoising mode every
+  // num_mode_change times this function is called. Note that this
+  // function called every 8 frames, so (8 * num_mode_change) is number
+  // of frames where denoising mode change is tested for switch.
+  int num_mode_change = 20;
+  // Framerate factor, to compensate for larger mse at lower framerates.
+  // Use ref_framerate, which is full source framerate for temporal layers.
+  // TODO(marpan): Adjust this factor.
+  int fac_framerate = cpi->ref_framerate < 25.0f ? 80 : 100;
+  int tot_num_blocks = cm->mb_rows * cm->mb_cols;
+  int ystride = cpi->Source->y_stride;
+  unsigned char *src = cpi->Source->y_buffer;
+  unsigned char *dst = cpi->denoiser.yv12_last_source.y_buffer;
+  static const unsigned char const_source[16] = {
+      128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
+      128, 128, 128};
+  int bandwidth = (int)(cpi->target_bandwidth);
+  // For temporal layers, use full bandwidth (top layer).
+  if (cpi->oxcf.number_of_layers > 1) {
+    LAYER_CONTEXT *lc = &cpi->layer_context[cpi->oxcf.number_of_layers - 1];
+    bandwidth = (int)(lc->target_bandwidth);
+  }
+  // Loop through the Y plane, every skip blocks along rows and columns,
+  // summing the normalized mean square error, only for blocks that have
+  // been encoded as ZEROMV LAST at least min_consec_zero_last least frames in
+  // a row and have small sum difference between current and previous frame.
+  // Normalization here is by the contrast of the current frame block.
+  for (i = 0; i < cm->Height; i += 16 * skip) {
+    int block_index_row = (i >> 4) * cm->mb_cols;
+    for (j = 0; j < cm->Width; j += 16 * skip) {
+      int index = block_index_row + (j >> 4);
+      if (cpi->consec_zero_last[index] >= min_consec_zero_last) {
+        unsigned int sse;
+        const unsigned int var = vpx_variance16x16(src + j,
+                                                   ystride,
+                                                   dst + j,
+                                                   ystride,
+                                                   &sse);
+        // Only consider this block as valid for noise measurement
+        // if the sum_diff average of the current and previous frame
+        // is small (to avoid effects from lighting change).
+        if ((sse - var) < 128) {
+          unsigned int sse2;
+          const unsigned int act = vpx_variance16x16(src + j,
+                                                     ystride,
+                                                     const_source,
+                                                     0,
+                                                     &sse2);
+          if (act > 0)
+            total += sse / act;
+          num_blocks++;
+        }
+      }
+    }
+    src += 16 * skip * ystride;
+    dst += 16 * skip * ystride;
+  }
+  total = total * fac_framerate / 100;
+
+  // Only consider this frame as valid sample if we have computed nmse over
+  // at least ~1/16 blocks, and Total > 0 (Total == 0 can happen if the
+  // application inputs duplicate frames, or contrast is all zero).
+  if (total > 0 &&
+      (num_blocks > (tot_num_blocks >> 4))) {
+    // Update the recursive mean square source_diff.
+    total = (total << 8) / num_blocks;
+    if (cpi->denoiser.nmse_source_diff_count == 0) {
+      // First sample in new interval.
+      cpi->denoiser.nmse_source_diff = total;
+      cpi->denoiser.qp_avg = cm->base_qindex;
+    } else {
+      // For subsequent samples, use average with weight ~1/4 for new sample.
+      cpi->denoiser.nmse_source_diff = (int)((total +
+          3 * cpi->denoiser.nmse_source_diff) >> 2);
+      cpi->denoiser.qp_avg = (int)((cm->base_qindex +
+          3 * cpi->denoiser.qp_avg) >> 2);
+    }
+    cpi->denoiser.nmse_source_diff_count++;
+  }
+  // Check for changing the denoiser mode, when we have obtained #samples =
+  // num_mode_change. Condition the change also on the bitrate and QP.
+  if (cpi->denoiser.nmse_source_diff_count == num_mode_change) {
+    // Check for going up: from normal to aggressive mode.
+    if ((cpi->denoiser.denoiser_mode == kDenoiserOnYUV) &&
+        (cpi->denoiser.nmse_source_diff >
+        cpi->denoiser.threshold_aggressive_mode) &&
+        (cpi->denoiser.qp_avg < cpi->denoiser.qp_threshold_up &&
+         bandwidth > cpi->denoiser.bitrate_threshold)) {
+      vp8_denoiser_set_parameters(&cpi->denoiser, kDenoiserOnYUVAggressive);
+    } else {
+      // Check for going down: from aggressive to normal mode.
+      if (((cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive) &&
+          (cpi->denoiser.nmse_source_diff <
+          cpi->denoiser.threshold_aggressive_mode)) ||
+          ((cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive) &&
+          (cpi->denoiser.qp_avg > cpi->denoiser.qp_threshold_down ||
+           bandwidth < cpi->denoiser.bitrate_threshold))) {
+        vp8_denoiser_set_parameters(&cpi->denoiser, kDenoiserOnYUV);
+      }
+    }
+    // Reset metric and counter for next interval.
+    cpi->denoiser.nmse_source_diff = 0;
+    cpi->denoiser.qp_avg = 0;
+    cpi->denoiser.nmse_source_diff_count = 0;
+  }
+}
+#endif
+
+void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm)
+{
+    const FRAME_TYPE frame_type = cm->frame_type;
+
+    int update_any_ref_buffers = 1;
+    if (cpi->common.refresh_last_frame == 0 &&
+        cpi->common.refresh_golden_frame == 0 &&
+        cpi->common.refresh_alt_ref_frame == 0) {
+        update_any_ref_buffers = 0;
+    }
+
+    if (cm->no_lpf)
+    {
+        cm->filter_level = 0;
+    }
+    else
+    {
+        struct vpx_usec_timer timer;
+
+        vp8_clear_system_state();
+
+        vpx_usec_timer_start(&timer);
+        if (cpi->sf.auto_filter == 0) {
+#if CONFIG_TEMPORAL_DENOISING
+            if (cpi->oxcf.noise_sensitivity && cm->frame_type != KEY_FRAME) {
+                // Use the denoised buffer for selecting base loop filter level.
+                // Denoised signal for current frame is stored in INTRA_FRAME.
+                // No denoising on key frames.
+                vp8cx_pick_filter_level_fast(
+                    &cpi->denoiser.yv12_running_avg[INTRA_FRAME], cpi);
+            } else {
+                vp8cx_pick_filter_level_fast(cpi->Source, cpi);
+            }
+#else
+            vp8cx_pick_filter_level_fast(cpi->Source, cpi);
+#endif
+        } else {
+#if CONFIG_TEMPORAL_DENOISING
+            if (cpi->oxcf.noise_sensitivity && cm->frame_type != KEY_FRAME) {
+                // Use the denoised buffer for selecting base loop filter level.
+                // Denoised signal for current frame is stored in INTRA_FRAME.
+                // No denoising on key frames.
+                vp8cx_pick_filter_level(
+                    &cpi->denoiser.yv12_running_avg[INTRA_FRAME], cpi);
+            } else {
+                vp8cx_pick_filter_level(cpi->Source, cpi);
+            }
+#else
+            vp8cx_pick_filter_level(cpi->Source, cpi);
+#endif
+        }
+
+
+        if (cm->filter_level > 0)
+        {
+            vp8cx_set_alt_lf_level(cpi, cm->filter_level);
+        }
+
+        vpx_usec_timer_mark(&timer);
+        cpi->time_pick_lpf += vpx_usec_timer_elapsed(&timer);
+    }
+
+#if CONFIG_MULTITHREAD
+    if (cpi->b_multi_threaded)
+        sem_post(&cpi->h_event_end_lpf); /* signal that we have set filter_level */
+#endif
+
+    // No need to apply loop-filter if the encoded frame does not update
+    // any reference buffers.
+    if (cm->filter_level > 0 && update_any_ref_buffers)
+    {
+        vp8_loop_filter_frame(cm, &cpi->mb.e_mbd, frame_type);
+    }
+
+    vp8_yv12_extend_frame_borders(cm->frame_to_show);
+
+}
+
+static void encode_frame_to_data_rate
+(
+    VP8_COMP *cpi,
+    unsigned long *size,
+    unsigned char *dest,
+    unsigned char* dest_end,
+    unsigned int *frame_flags
+)
+{
+    int Q;
+    int frame_over_shoot_limit;
+    int frame_under_shoot_limit;
+
+    int Loop = 0;
+    int loop_count;
+
+    VP8_COMMON *cm = &cpi->common;
+    int active_worst_qchanged = 0;
+
+#if !(CONFIG_REALTIME_ONLY)
+    int q_low;
+    int q_high;
+    int zbin_oq_high;
+    int zbin_oq_low = 0;
+    int top_index;
+    int bottom_index;
+    int overshoot_seen = 0;
+    int undershoot_seen = 0;
+#endif
+
+    int drop_mark = (int)(cpi->oxcf.drop_frames_water_mark *
+                          cpi->oxcf.optimal_buffer_level / 100);
+    int drop_mark75 = drop_mark * 2 / 3;
+    int drop_mark50 = drop_mark / 4;
+    int drop_mark25 = drop_mark / 8;
+
+
+    /* Clear down mmx registers to allow floating point in what follows */
+    vp8_clear_system_state();
+
+#if CONFIG_MULTITHREAD
+    /*  wait for the last picture loopfilter thread done */
+    if (cpi->b_lpf_running)
+    {
+        sem_wait(&cpi->h_event_end_lpf);
+        cpi->b_lpf_running = 0;
+    }
+#endif
+
+    if(cpi->force_next_frame_intra)
+    {
+        cm->frame_type = KEY_FRAME;  /* delayed intra frame */
+        cpi->force_next_frame_intra = 0;
+    }
+
+    /* For an alt ref frame in 2 pass we skip the call to the second pass
+     * function that sets the target bandwidth
+     */
+#if !(CONFIG_REALTIME_ONLY)
+
+    if (cpi->pass == 2)
+    {
+        if (cpi->common.refresh_alt_ref_frame)
+        {
+            /* Per frame bit target for the alt ref frame */
+            cpi->per_frame_bandwidth = cpi->twopass.gf_bits;
+            /* per second target bitrate */
+            cpi->target_bandwidth = (int)(cpi->twopass.gf_bits *
+                                          cpi->output_framerate);
+        }
+    }
+    else
+#endif
+        cpi->per_frame_bandwidth  = (int)(cpi->target_bandwidth / cpi->output_framerate);
+
+    /* Default turn off buffer to buffer copying */
+    cm->copy_buffer_to_gf = 0;
+    cm->copy_buffer_to_arf = 0;
+
+    /* Clear zbin over-quant value and mode boost values. */
+    cpi->mb.zbin_over_quant = 0;
+    cpi->mb.zbin_mode_boost = 0;
+
+    /* Enable or disable mode based tweaking of the zbin
+     * For 2 Pass Only used where GF/ARF prediction quality
+     * is above a threshold
+     */
+    cpi->mb.zbin_mode_boost_enabled = 1;
+    if (cpi->pass == 2)
+    {
+        if ( cpi->gfu_boost <= 400 )
+        {
+            cpi->mb.zbin_mode_boost_enabled = 0;
+        }
+    }
+
+    /* Current default encoder behaviour for the altref sign bias */
+    if (cpi->source_alt_ref_active)
+        cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 1;
+    else
+        cpi->common.ref_frame_sign_bias[ALTREF_FRAME] = 0;
+
+    /* Check to see if a key frame is signaled
+     * For two pass with auto key frame enabled cm->frame_type may already
+     * be set, but not for one pass.
+     */
+    if ((cm->current_video_frame == 0) ||
+        (cm->frame_flags & FRAMEFLAGS_KEY) ||
+        (cpi->oxcf.auto_key && (cpi->frames_since_key % cpi->key_frame_frequency == 0)))
+    {
+        /* Key frame from VFW/auto-keyframe/first frame */
+        cm->frame_type = KEY_FRAME;
+#if CONFIG_TEMPORAL_DENOISING
+        if (cpi->oxcf.noise_sensitivity == 4) {
+          // For adaptive mode, reset denoiser to normal mode on key frame.
+          vp8_denoiser_set_parameters(&cpi->denoiser, kDenoiserOnYUV);
+        }
+#endif
+    }
+
+#if CONFIG_MULTI_RES_ENCODING
+    if (cpi->oxcf.mr_total_resolutions > 1) {
+      LOWER_RES_FRAME_INFO* low_res_frame_info
+         = (LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info;
+
+      if (cpi->oxcf.mr_encoder_id) {
+
+        // TODO(marpan): This constraint shouldn't be needed, as we would like
+        // to allow for key frame setting (forced or periodic) defined per
+        // spatial layer. For now, keep this in.
+        cm->frame_type = low_res_frame_info->frame_type;
+
+        // Check if lower resolution is available for motion vector reuse.
+        if(cm->frame_type != KEY_FRAME)
+        {
+          cpi->mr_low_res_mv_avail = 1;
+          cpi->mr_low_res_mv_avail &= !(low_res_frame_info->is_frame_dropped);
+
+          if (cpi->ref_frame_flags & VP8_LAST_FRAME)
+              cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[LAST_FRAME]
+                       == low_res_frame_info->low_res_ref_frames[LAST_FRAME]);
+
+          if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
+              cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[GOLDEN_FRAME]
+                       == low_res_frame_info->low_res_ref_frames[GOLDEN_FRAME]);
+
+          // Don't use altref to determine whether low res is available.
+          // TODO (marpan): Should we make this type of condition on a
+          // per-reference frame basis?
+          /*
+          if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
+              cpi->mr_low_res_mv_avail &= (cpi->current_ref_frames[ALTREF_FRAME]
+                       == low_res_frame_info->low_res_ref_frames[ALTREF_FRAME]);
+          */
+        }
+      }
+
+      // On a key frame: For the lowest resolution, keep track of the key frame
+      // counter value. For the higher resolutions, reset the current video
+      // frame counter to that of the lowest resolution.
+      // This is done to the handle the case where we may stop/start encoding
+      // higher layer(s). The restart-encoding of higher layer is only signaled
+      // by a key frame for now.
+      // TODO (marpan): Add flag to indicate restart-encoding of higher layer.
+      if (cm->frame_type == KEY_FRAME) {
+        if (cpi->oxcf.mr_encoder_id) {
+          // If the initial starting value of the buffer level is zero (this can
+          // happen because we may have not started encoding this higher stream),
+          // then reset it to non-zero value based on |starting_buffer_level|.
+          if (cpi->common.current_video_frame == 0 && cpi->buffer_level == 0) {
+            unsigned int i;
+            cpi->bits_off_target = cpi->oxcf.starting_buffer_level;
+            cpi->buffer_level = cpi->oxcf.starting_buffer_level;
+            for (i = 0; i < cpi->oxcf.number_of_layers; i++) {
+              LAYER_CONTEXT *lc = &cpi->layer_context[i];
+              lc->bits_off_target = lc->starting_buffer_level;
+              lc->buffer_level = lc->starting_buffer_level;
+            }
+          }
+          cpi->common.current_video_frame =
+              low_res_frame_info->key_frame_counter_value;
+        } else {
+          low_res_frame_info->key_frame_counter_value =
+              cpi->common.current_video_frame;
+        }
+      }
+
+    }
+#endif
+
+    // Find the reference frame closest to the current frame.
+    cpi->closest_reference_frame = LAST_FRAME;
+    if(cm->frame_type != KEY_FRAME) {
+      int i;
+      MV_REFERENCE_FRAME closest_ref = INTRA_FRAME;
+      if (cpi->ref_frame_flags & VP8_LAST_FRAME) {
+        closest_ref = LAST_FRAME;
+      } else if (cpi->ref_frame_flags & VP8_GOLD_FRAME) {
+        closest_ref = GOLDEN_FRAME;
+      } else if (cpi->ref_frame_flags & VP8_ALTR_FRAME) {
+        closest_ref = ALTREF_FRAME;
+      }
+      for(i = 1; i <= 3; i++) {
+        vpx_ref_frame_type_t ref_frame_type = (vpx_ref_frame_type_t)
+            ((i == 3) ? 4 : i);
+        if (cpi->ref_frame_flags & ref_frame_type) {
+          if ((cm->current_video_frame - cpi->current_ref_frames[i]) <
+              (cm->current_video_frame - cpi->current_ref_frames[closest_ref])) {
+            closest_ref = i;
+          }
+        }
+      }
+      cpi->closest_reference_frame = closest_ref;
+    }
+
+    /* Set various flags etc to special state if it is a key frame */
+    if (cm->frame_type == KEY_FRAME)
+    {
+        int i;
+
+        // Set the loop filter deltas and segmentation map update
+        setup_features(cpi);
+
+        /* The alternate reference frame cannot be active for a key frame */
+        cpi->source_alt_ref_active = 0;
+
+        /* Reset the RD threshold multipliers to default of * 1 (128) */
+        for (i = 0; i < MAX_MODES; i++)
+        {
+            cpi->mb.rd_thresh_mult[i] = 128;
+        }
+
+        // Reset the zero_last counter to 0 on key frame.
+        memset(cpi->consec_zero_last, 0, cm->mb_rows * cm->mb_cols);
+        memset(cpi->consec_zero_last_mvbias, 0,
+               (cpi->common.mb_rows * cpi->common.mb_cols));
+    }
+
+#if 0
+    /* Experimental code for lagged compress and one pass
+     * Initialise one_pass GF frames stats
+     * Update stats used for GF selection
+     */
+    {
+        cpi->one_pass_frame_index = cm->current_video_frame % MAX_LAG_BUFFERS;
+
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frames_so_far = 0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_intra_error = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_coded_error = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_pcnt_inter = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_pcnt_motion = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvr = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvr_abs = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvc = 0.0;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index ].frame_mvc_abs = 0.0;
+    }
+#endif
+
+    update_rd_ref_frame_probs(cpi);
+
+    if (cpi->drop_frames_allowed)
+    {
+        /* The reset to decimation 0 is only done here for one pass.
+         * Once it is set two pass leaves decimation on till the next kf.
+         */
+        if ((cpi->buffer_level > drop_mark) && (cpi->decimation_factor > 0))
+            cpi->decimation_factor --;
+
+        if (cpi->buffer_level > drop_mark75 && cpi->decimation_factor > 0)
+            cpi->decimation_factor = 1;
+
+        else if (cpi->buffer_level < drop_mark25 && (cpi->decimation_factor == 2 || cpi->decimation_factor == 3))
+        {
+            cpi->decimation_factor = 3;
+        }
+        else if (cpi->buffer_level < drop_mark50 && (cpi->decimation_factor == 1 || cpi->decimation_factor == 2))
+        {
+            cpi->decimation_factor = 2;
+        }
+        else if (cpi->buffer_level < drop_mark75 && (cpi->decimation_factor == 0 || cpi->decimation_factor == 1))
+        {
+            cpi->decimation_factor = 1;
+        }
+    }
+
+    /* The following decimates the frame rate according to a regular
+     * pattern (i.e. to 1/2 or 2/3 frame rate) This can be used to help
+     * prevent buffer under-run in CBR mode. Alternatively it might be
+     * desirable in some situations to drop frame rate but throw more bits
+     * at each frame.
+     *
+     * Note that dropping a key frame can be problematic if spatial
+     * resampling is also active
+     */
+    if (cpi->decimation_factor > 0)
+    {
+        switch (cpi->decimation_factor)
+        {
+        case 1:
+            cpi->per_frame_bandwidth  = cpi->per_frame_bandwidth * 3 / 2;
+            break;
+        case 2:
+            cpi->per_frame_bandwidth  = cpi->per_frame_bandwidth * 5 / 4;
+            break;
+        case 3:
+            cpi->per_frame_bandwidth  = cpi->per_frame_bandwidth * 5 / 4;
+            break;
+        }
+
+        /* Note that we should not throw out a key frame (especially when
+         * spatial resampling is enabled).
+         */
+        if (cm->frame_type == KEY_FRAME)
+        {
+            cpi->decimation_count = cpi->decimation_factor;
+        }
+        else if (cpi->decimation_count > 0)
+        {
+            cpi->decimation_count --;
+
+            cpi->bits_off_target += cpi->av_per_frame_bandwidth;
+            if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
+                cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
+
+#if CONFIG_MULTI_RES_ENCODING
+            vp8_store_drop_frame_info(cpi);
+#endif
+
+            cm->current_video_frame++;
+            cpi->frames_since_key++;
+            // We advance the temporal pattern for dropped frames.
+            cpi->temporal_pattern_counter++;
+
+#if CONFIG_INTERNAL_STATS
+            cpi->count ++;
+#endif
+
+            cpi->buffer_level = cpi->bits_off_target;
+
+            if (cpi->oxcf.number_of_layers > 1)
+            {
+                unsigned int i;
+
+                /* Propagate bits saved by dropping the frame to higher
+                 * layers
+                 */
+                for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
+                {
+                    LAYER_CONTEXT *lc = &cpi->layer_context[i];
+                    lc->bits_off_target += (int)(lc->target_bandwidth /
+                                                 lc->framerate);
+                    if (lc->bits_off_target > lc->maximum_buffer_size)
+                        lc->bits_off_target = lc->maximum_buffer_size;
+                    lc->buffer_level = lc->bits_off_target;
+                }
+            }
+
+            return;
+        }
+        else
+            cpi->decimation_count = cpi->decimation_factor;
+    }
+    else
+        cpi->decimation_count = 0;
+
+    /* Decide how big to make the frame */
+    if (!vp8_pick_frame_size(cpi))
+    {
+        /*TODO: 2 drop_frame and return code could be put together. */
+#if CONFIG_MULTI_RES_ENCODING
+        vp8_store_drop_frame_info(cpi);
+#endif
+        cm->current_video_frame++;
+        cpi->frames_since_key++;
+        // We advance the temporal pattern for dropped frames.
+        cpi->temporal_pattern_counter++;
+        return;
+    }
+
+    /* Reduce active_worst_allowed_q for CBR if our buffer is getting too full.
+     * This has a knock on effect on active best quality as well.
+     * For CBR if the buffer reaches its maximum level then we can no longer
+     * save up bits for later frames so we might as well use them up
+     * on the current frame.
+     */
+    if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
+        (cpi->buffer_level >= cpi->oxcf.optimal_buffer_level) && cpi->buffered_mode)
+    {
+        /* Max adjustment is 1/4 */
+        int Adjustment = cpi->active_worst_quality / 4;
+
+        if (Adjustment)
+        {
+            int buff_lvl_step;
+
+            if (cpi->buffer_level < cpi->oxcf.maximum_buffer_size)
+            {
+                buff_lvl_step = (int)
+                                ((cpi->oxcf.maximum_buffer_size -
+                                  cpi->oxcf.optimal_buffer_level) /
+                                  Adjustment);
+
+                if (buff_lvl_step)
+                    Adjustment = (int)
+                                 ((cpi->buffer_level -
+                                 cpi->oxcf.optimal_buffer_level) /
+                                 buff_lvl_step);
+                else
+                    Adjustment = 0;
+            }
+
+            cpi->active_worst_quality -= Adjustment;
+
+            if(cpi->active_worst_quality < cpi->active_best_quality)
+                cpi->active_worst_quality = cpi->active_best_quality;
+        }
+    }
+
+    /* Set an active best quality and if necessary active worst quality
+     * There is some odd behavior for one pass here that needs attention.
+     */
+    if ( (cpi->pass == 2) || (cpi->ni_frames > 150))
+    {
+        vp8_clear_system_state();
+
+        Q = cpi->active_worst_quality;
+
+        if ( cm->frame_type == KEY_FRAME )
+        {
+            if ( cpi->pass == 2 )
+            {
+                if (cpi->gfu_boost > 600)
+                   cpi->active_best_quality = kf_low_motion_minq[Q];
+                else
+                   cpi->active_best_quality = kf_high_motion_minq[Q];
+
+                /* Special case for key frames forced because we have reached
+                 * the maximum key frame interval. Here force the Q to a range
+                 * based on the ambient Q to reduce the risk of popping
+                 */
+                if ( cpi->this_key_frame_forced )
+                {
+                    if ( cpi->active_best_quality > cpi->avg_frame_qindex * 7/8)
+                        cpi->active_best_quality = cpi->avg_frame_qindex * 7/8;
+                    else if ( cpi->active_best_quality < cpi->avg_frame_qindex >> 2 )
+                        cpi->active_best_quality = cpi->avg_frame_qindex >> 2;
+                }
+            }
+            /* One pass more conservative */
+            else
+               cpi->active_best_quality = kf_high_motion_minq[Q];
+        }
+
+        else if (cpi->oxcf.number_of_layers==1 &&
+                (cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame))
+        {
+            /* Use the lower of cpi->active_worst_quality and recent
+             * average Q as basis for GF/ARF Q limit unless last frame was
+             * a key frame.
+             */
+            if ( (cpi->frames_since_key > 1) &&
+               (cpi->avg_frame_qindex < cpi->active_worst_quality) )
+            {
+                Q = cpi->avg_frame_qindex;
+            }
+
+            /* For constrained quality dont allow Q less than the cq level */
+            if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+                 (Q < cpi->cq_target_quality) )
+            {
+                Q = cpi->cq_target_quality;
+            }
+
+            if ( cpi->pass == 2 )
+            {
+                if ( cpi->gfu_boost > 1000 )
+                    cpi->active_best_quality = gf_low_motion_minq[Q];
+                else if ( cpi->gfu_boost < 400 )
+                    cpi->active_best_quality = gf_high_motion_minq[Q];
+                else
+                    cpi->active_best_quality = gf_mid_motion_minq[Q];
+
+                /* Constrained quality use slightly lower active best. */
+                if ( cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY )
+                {
+                    cpi->active_best_quality =
+                        cpi->active_best_quality * 15/16;
+                }
+            }
+            /* One pass more conservative */
+            else
+                cpi->active_best_quality = gf_high_motion_minq[Q];
+        }
+        else
+        {
+            cpi->active_best_quality = inter_minq[Q];
+
+            /* For the constant/constrained quality mode we dont want
+             * q to fall below the cq level.
+             */
+            if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+                (cpi->active_best_quality < cpi->cq_target_quality) )
+            {
+                /* If we are strongly undershooting the target rate in the last
+                 * frames then use the user passed in cq value not the auto
+                 * cq value.
+                 */
+                if ( cpi->rolling_actual_bits < cpi->min_frame_bandwidth )
+                    cpi->active_best_quality = cpi->oxcf.cq_level;
+                else
+                    cpi->active_best_quality = cpi->cq_target_quality;
+            }
+        }
+
+        /* If CBR and the buffer is as full then it is reasonable to allow
+         * higher quality on the frames to prevent bits just going to waste.
+         */
+        if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+        {
+            /* Note that the use of >= here elliminates the risk of a devide
+             * by 0 error in the else if clause
+             */
+            if (cpi->buffer_level >= cpi->oxcf.maximum_buffer_size)
+                cpi->active_best_quality = cpi->best_quality;
+
+            else if (cpi->buffer_level > cpi->oxcf.optimal_buffer_level)
+            {
+                int Fraction = (int)
+                  (((cpi->buffer_level - cpi->oxcf.optimal_buffer_level) * 128)
+                  / (cpi->oxcf.maximum_buffer_size -
+                  cpi->oxcf.optimal_buffer_level));
+                int min_qadjustment = ((cpi->active_best_quality -
+                                        cpi->best_quality) * Fraction) / 128;
+
+                cpi->active_best_quality -= min_qadjustment;
+            }
+        }
+    }
+    /* Make sure constrained quality mode limits are adhered to for the first
+     * few frames of one pass encodes
+     */
+    else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
+    {
+        if ( (cm->frame_type == KEY_FRAME) ||
+             cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame )
+        {
+             cpi->active_best_quality = cpi->best_quality;
+        }
+        else if (cpi->active_best_quality < cpi->cq_target_quality)
+        {
+            cpi->active_best_quality = cpi->cq_target_quality;
+        }
+    }
+
+    /* Clip the active best and worst quality values to limits */
+    if (cpi->active_worst_quality > cpi->worst_quality)
+        cpi->active_worst_quality = cpi->worst_quality;
+
+    if (cpi->active_best_quality < cpi->best_quality)
+        cpi->active_best_quality = cpi->best_quality;
+
+    if ( cpi->active_worst_quality < cpi->active_best_quality )
+        cpi->active_worst_quality = cpi->active_best_quality;
+
+    /* Determine initial Q to try */
+    Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+
+#if !(CONFIG_REALTIME_ONLY)
+
+    /* Set highest allowed value for Zbin over quant */
+    if (cm->frame_type == KEY_FRAME)
+        zbin_oq_high = 0;
+    else if ((cpi->oxcf.number_of_layers == 1) && ((cm->refresh_alt_ref_frame ||
+              (cm->refresh_golden_frame && !cpi->source_alt_ref_active))))
+    {
+          zbin_oq_high = 16;
+    }
+    else
+        zbin_oq_high = ZBIN_OQ_MAX;
+#endif
+
+    /* Setup background Q adjustment for error resilient mode.
+     * For multi-layer encodes only enable this for the base layer.
+    */
+    if (cpi->cyclic_refresh_mode_enabled)
+    {
+      // Special case for screen_content_mode with golden frame updates.
+      int disable_cr_gf = (cpi->oxcf.screen_content_mode == 2 &&
+                           cm->refresh_golden_frame);
+      if (cpi->current_layer == 0 && cpi->force_maxqp == 0 && !disable_cr_gf)
+        cyclic_background_refresh(cpi, Q, 0);
+      else
+        disable_segmentation(cpi);
+    }
+
+    vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit, &frame_over_shoot_limit);
+
+#if !(CONFIG_REALTIME_ONLY)
+    /* Limit Q range for the adaptive loop. */
+    bottom_index = cpi->active_best_quality;
+    top_index    = cpi->active_worst_quality;
+    q_low  = cpi->active_best_quality;
+    q_high = cpi->active_worst_quality;
+#endif
+
+    vp8_save_coding_context(cpi);
+
+    loop_count = 0;
+
+    scale_and_extend_source(cpi->un_scaled_source, cpi);
+
+#if CONFIG_TEMPORAL_DENOISING && CONFIG_POSTPROC
+    // Option to apply spatial blur under the aggressive or adaptive
+    // (temporal denoising) mode.
+    if (cpi->oxcf.noise_sensitivity >= 3) {
+      if (cpi->denoiser.denoise_pars.spatial_blur != 0) {
+        vp8_de_noise(cm, cpi->Source, cpi->Source,
+            cpi->denoiser.denoise_pars.spatial_blur, 1, 0, 0);
+      }
+    }
+#endif
+
+#if !(CONFIG_REALTIME_ONLY) && CONFIG_POSTPROC && !(CONFIG_TEMPORAL_DENOISING)
+
+    if (cpi->oxcf.noise_sensitivity > 0)
+    {
+        unsigned char *src;
+        int l = 0;
+
+        switch (cpi->oxcf.noise_sensitivity)
+        {
+        case 1:
+            l = 20;
+            break;
+        case 2:
+            l = 40;
+            break;
+        case 3:
+            l = 60;
+            break;
+        case 4:
+            l = 80;
+            break;
+        case 5:
+            l = 100;
+            break;
+        case 6:
+            l = 150;
+            break;
+        }
+
+
+        if (cm->frame_type == KEY_FRAME)
+        {
+            vp8_de_noise(cm, cpi->Source, cpi->Source, l , 1,  0, 1);
+        }
+        else
+        {
+            vp8_de_noise(cm, cpi->Source, cpi->Source, l , 1,  0, 1);
+
+            src = cpi->Source->y_buffer;
+
+            if (cpi->Source->y_stride < 0)
+            {
+                src += cpi->Source->y_stride * (cpi->Source->y_height - 1);
+            }
+        }
+    }
+
+#endif
+
+
+#ifdef OUTPUT_YUV_SRC
+    vp8_write_yuv_frame(yuv_file, cpi->Source);
+#endif
+
+    do
+    {
+        vp8_clear_system_state();
+
+        vp8_set_quantizer(cpi, Q);
+
+        /* setup skip prob for costing in mode/mv decision */
+        if (cpi->common.mb_no_coeff_skip)
+        {
+            cpi->prob_skip_false = cpi->base_skip_false_prob[Q];
+
+            if (cm->frame_type != KEY_FRAME)
+            {
+                if (cpi->common.refresh_alt_ref_frame)
+                {
+                    if (cpi->last_skip_false_probs[2] != 0)
+                        cpi->prob_skip_false = cpi->last_skip_false_probs[2];
+
+                    /*
+                                        if(cpi->last_skip_false_probs[2]!=0 && abs(Q- cpi->last_skip_probs_q[2])<=16 )
+                       cpi->prob_skip_false = cpi->last_skip_false_probs[2];
+                                        else if (cpi->last_skip_false_probs[2]!=0)
+                       cpi->prob_skip_false = (cpi->last_skip_false_probs[2]  + cpi->prob_skip_false ) / 2;
+                       */
+                }
+                else if (cpi->common.refresh_golden_frame)
+                {
+                    if (cpi->last_skip_false_probs[1] != 0)
+                        cpi->prob_skip_false = cpi->last_skip_false_probs[1];
+
+                    /*
+                                        if(cpi->last_skip_false_probs[1]!=0 && abs(Q- cpi->last_skip_probs_q[1])<=16 )
+                       cpi->prob_skip_false = cpi->last_skip_false_probs[1];
+                                        else if (cpi->last_skip_false_probs[1]!=0)
+                       cpi->prob_skip_false = (cpi->last_skip_false_probs[1]  + cpi->prob_skip_false ) / 2;
+                       */
+                }
+                else
+                {
+                    if (cpi->last_skip_false_probs[0] != 0)
+                        cpi->prob_skip_false = cpi->last_skip_false_probs[0];
+
+                    /*
+                    if(cpi->last_skip_false_probs[0]!=0 && abs(Q- cpi->last_skip_probs_q[0])<=16 )
+                        cpi->prob_skip_false = cpi->last_skip_false_probs[0];
+                    else if(cpi->last_skip_false_probs[0]!=0)
+                        cpi->prob_skip_false = (cpi->last_skip_false_probs[0]  + cpi->prob_skip_false ) / 2;
+                        */
+                }
+
+                /* as this is for cost estimate, let's make sure it does not
+                 * go extreme eitehr way
+                 */
+                if (cpi->prob_skip_false < 5)
+                    cpi->prob_skip_false = 5;
+
+                if (cpi->prob_skip_false > 250)
+                    cpi->prob_skip_false = 250;
+
+                if (cpi->oxcf.number_of_layers == 1 && cpi->is_src_frame_alt_ref)
+                    cpi->prob_skip_false = 1;
+            }
+
+#if 0
+
+            if (cpi->pass != 1)
+            {
+                FILE *f = fopen("skip.stt", "a");
+                fprintf(f, "%d, %d, %4d ", cpi->common.refresh_golden_frame, cpi->common.refresh_alt_ref_frame, cpi->prob_skip_false);
+                fclose(f);
+            }
+
+#endif
+
+        }
+
+        if (cm->frame_type == KEY_FRAME)
+        {
+            if(resize_key_frame(cpi))
+            {
+              /* If the frame size has changed, need to reset Q, quantizer,
+               * and background refresh.
+               */
+              Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+              if (cpi->cyclic_refresh_mode_enabled)
+              {
+                if (cpi->current_layer==0)
+                  cyclic_background_refresh(cpi, Q, 0);
+                else
+                  disable_segmentation(cpi);
+              }
+              // Reset the zero_last counter to 0 on key frame.
+              memset(cpi->consec_zero_last, 0, cm->mb_rows * cm->mb_cols);
+              memset(cpi->consec_zero_last_mvbias, 0,
+                     (cpi->common.mb_rows * cpi->common.mb_cols));
+              vp8_set_quantizer(cpi, Q);
+            }
+
+            vp8_setup_key_frame(cpi);
+        }
+
+
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+        {
+            if(cpi->oxcf.error_resilient_mode)
+                cm->refresh_entropy_probs = 0;
+
+            if (cpi->oxcf.error_resilient_mode & VPX_ERROR_RESILIENT_PARTITIONS)
+            {
+                if (cm->frame_type == KEY_FRAME)
+                    cm->refresh_entropy_probs = 1;
+            }
+
+            if (cm->refresh_entropy_probs == 0)
+            {
+                /* save a copy for later refresh */
+                memcpy(&cm->lfc, &cm->fc, sizeof(cm->fc));
+            }
+
+            vp8_update_coef_context(cpi);
+
+            vp8_update_coef_probs(cpi);
+
+            /* transform / motion compensation build reconstruction frame
+             * +pack coef partitions
+             */
+            vp8_encode_frame(cpi);
+
+            /* cpi->projected_frame_size is not needed for RT mode */
+        }
+#else
+        /* transform / motion compensation build reconstruction frame */
+        vp8_encode_frame(cpi);
+
+        if (cpi->oxcf.screen_content_mode == 2) {
+          if (vp8_drop_encodedframe_overshoot(cpi, Q))
+            return;
+        }
+
+        cpi->projected_frame_size -= vp8_estimate_entropy_savings(cpi);
+        cpi->projected_frame_size = (cpi->projected_frame_size > 0) ? cpi->projected_frame_size : 0;
+#endif
+        vp8_clear_system_state();
+
+        /* Test to see if the stats generated for this frame indicate that
+         * we should have coded a key frame (assuming that we didn't)!
+         */
+
+        if (cpi->pass != 2 && cpi->oxcf.auto_key && cm->frame_type != KEY_FRAME
+            && cpi->compressor_speed != 2)
+        {
+#if !(CONFIG_REALTIME_ONLY)
+            if (decide_key_frame(cpi))
+            {
+                /* Reset all our sizing numbers and recode */
+                cm->frame_type = KEY_FRAME;
+
+                vp8_pick_frame_size(cpi);
+
+                /* Clear the Alt reference frame active flag when we have
+                 * a key frame
+                 */
+                cpi->source_alt_ref_active = 0;
+
+                // Set the loop filter deltas and segmentation map update
+                setup_features(cpi);
+
+                vp8_restore_coding_context(cpi);
+
+                Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+
+                vp8_compute_frame_size_bounds(cpi, &frame_under_shoot_limit, &frame_over_shoot_limit);
+
+                /* Limit Q range for the adaptive loop. */
+                bottom_index = cpi->active_best_quality;
+                top_index    = cpi->active_worst_quality;
+                q_low  = cpi->active_best_quality;
+                q_high = cpi->active_worst_quality;
+
+                loop_count++;
+                Loop = 1;
+
+                continue;
+            }
+#endif
+        }
+
+        vp8_clear_system_state();
+
+        if (frame_over_shoot_limit == 0)
+            frame_over_shoot_limit = 1;
+
+        /* Are we are overshooting and up against the limit of active max Q. */
+        if (((cpi->pass != 2) || (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)) &&
+            (Q == cpi->active_worst_quality)                     &&
+            (cpi->active_worst_quality < cpi->worst_quality)      &&
+            (cpi->projected_frame_size > frame_over_shoot_limit))
+        {
+            int over_size_percent = ((cpi->projected_frame_size - frame_over_shoot_limit) * 100) / frame_over_shoot_limit;
+
+            /* If so is there any scope for relaxing it */
+            while ((cpi->active_worst_quality < cpi->worst_quality) && (over_size_percent > 0))
+            {
+                cpi->active_worst_quality++;
+                /* Assume 1 qstep = about 4% on frame size. */
+                over_size_percent = (int)(over_size_percent * 0.96);
+            }
+#if !(CONFIG_REALTIME_ONLY)
+            top_index = cpi->active_worst_quality;
+#endif
+            /* If we have updated the active max Q do not call
+             * vp8_update_rate_correction_factors() this loop.
+             */
+            active_worst_qchanged = 1;
+        }
+        else
+            active_worst_qchanged = 0;
+
+#if !(CONFIG_REALTIME_ONLY)
+        /* Special case handling for forced key frames */
+        if ( (cm->frame_type == KEY_FRAME) && cpi->this_key_frame_forced )
+        {
+            int last_q = Q;
+            int kf_err = vp8_calc_ss_err(cpi->Source,
+                                         &cm->yv12_fb[cm->new_fb_idx]);
+
+            /* The key frame is not good enough */
+            if ( kf_err > ((cpi->ambient_err * 7) >> 3) )
+            {
+                /* Lower q_high */
+                q_high = (Q > q_low) ? (Q - 1) : q_low;
+
+                /* Adjust Q */
+                Q = (q_high + q_low) >> 1;
+            }
+            /* The key frame is much better than the previous frame */
+            else if ( kf_err < (cpi->ambient_err >> 1) )
+            {
+                /* Raise q_low */
+                q_low = (Q < q_high) ? (Q + 1) : q_high;
+
+                /* Adjust Q */
+                Q = (q_high + q_low + 1) >> 1;
+            }
+
+            /* Clamp Q to upper and lower limits: */
+            if (Q > q_high)
+                Q = q_high;
+            else if (Q < q_low)
+                Q = q_low;
+
+            Loop = Q != last_q;
+        }
+
+        /* Is the projected frame size out of range and are we allowed
+         * to attempt to recode.
+         */
+        else if ( recode_loop_test( cpi,
+                               frame_over_shoot_limit, frame_under_shoot_limit,
+                               Q, top_index, bottom_index ) )
+        {
+            int last_q = Q;
+            int Retries = 0;
+
+            /* Frame size out of permitted range. Update correction factor
+             * & compute new Q to try...
+             */
+
+            /* Frame is too large */
+            if (cpi->projected_frame_size > cpi->this_frame_target)
+            {
+                /* Raise Qlow as to at least the current value */
+                q_low = (Q < q_high) ? (Q + 1) : q_high;
+
+                /* If we are using over quant do the same for zbin_oq_low */
+                if (cpi->mb.zbin_over_quant > 0)
+                    zbin_oq_low = (cpi->mb.zbin_over_quant < zbin_oq_high) ?
+                        (cpi->mb.zbin_over_quant + 1) : zbin_oq_high;
+
+                if (undershoot_seen)
+                {
+                    /* Update rate_correction_factor unless
+                     * cpi->active_worst_quality has changed.
+                     */
+                    if (!active_worst_qchanged)
+                        vp8_update_rate_correction_factors(cpi, 1);
+
+                    Q = (q_high + q_low + 1) / 2;
+
+                    /* Adjust cpi->zbin_over_quant (only allowed when Q
+                     * is max)
+                     */
+                    if (Q < MAXQ)
+                        cpi->mb.zbin_over_quant = 0;
+                    else
+                    {
+                        zbin_oq_low = (cpi->mb.zbin_over_quant < zbin_oq_high) ?
+                            (cpi->mb.zbin_over_quant + 1) : zbin_oq_high;
+                        cpi->mb.zbin_over_quant =
+                            (zbin_oq_high + zbin_oq_low) / 2;
+                    }
+                }
+                else
+                {
+                    /* Update rate_correction_factor unless
+                     * cpi->active_worst_quality has changed.
+                     */
+                    if (!active_worst_qchanged)
+                        vp8_update_rate_correction_factors(cpi, 0);
+
+                    Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+
+                    while (((Q < q_low) ||
+                        (cpi->mb.zbin_over_quant < zbin_oq_low)) &&
+                        (Retries < 10))
+                    {
+                        vp8_update_rate_correction_factors(cpi, 0);
+                        Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+                        Retries ++;
+                    }
+                }
+
+                overshoot_seen = 1;
+            }
+            /* Frame is too small */
+            else
+            {
+                if (cpi->mb.zbin_over_quant == 0)
+                    /* Lower q_high if not using over quant */
+                    q_high = (Q > q_low) ? (Q - 1) : q_low;
+                else
+                    /* else lower zbin_oq_high */
+                    zbin_oq_high = (cpi->mb.zbin_over_quant > zbin_oq_low) ?
+                        (cpi->mb.zbin_over_quant - 1) : zbin_oq_low;
+
+                if (overshoot_seen)
+                {
+                    /* Update rate_correction_factor unless
+                     * cpi->active_worst_quality has changed.
+                     */
+                    if (!active_worst_qchanged)
+                        vp8_update_rate_correction_factors(cpi, 1);
+
+                    Q = (q_high + q_low) / 2;
+
+                    /* Adjust cpi->zbin_over_quant (only allowed when Q
+                     * is max)
+                     */
+                    if (Q < MAXQ)
+                        cpi->mb.zbin_over_quant = 0;
+                    else
+                        cpi->mb.zbin_over_quant =
+                            (zbin_oq_high + zbin_oq_low) / 2;
+                }
+                else
+                {
+                    /* Update rate_correction_factor unless
+                     * cpi->active_worst_quality has changed.
+                     */
+                    if (!active_worst_qchanged)
+                        vp8_update_rate_correction_factors(cpi, 0);
+
+                    Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+
+                    /* Special case reset for qlow for constrained quality.
+                     * This should only trigger where there is very substantial
+                     * undershoot on a frame and the auto cq level is above
+                     * the user passsed in value.
+                     */
+                    if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
+                         (Q < q_low) )
+                    {
+                        q_low = Q;
+                    }
+
+                    while (((Q > q_high) ||
+                        (cpi->mb.zbin_over_quant > zbin_oq_high)) &&
+                        (Retries < 10))
+                    {
+                        vp8_update_rate_correction_factors(cpi, 0);
+                        Q = vp8_regulate_q(cpi, cpi->this_frame_target);
+                        Retries ++;
+                    }
+                }
+
+                undershoot_seen = 1;
+            }
+
+            /* Clamp Q to upper and lower limits: */
+            if (Q > q_high)
+                Q = q_high;
+            else if (Q < q_low)
+                Q = q_low;
+
+            /* Clamp cpi->zbin_over_quant */
+            cpi->mb.zbin_over_quant = (cpi->mb.zbin_over_quant < zbin_oq_low) ?
+                zbin_oq_low : (cpi->mb.zbin_over_quant > zbin_oq_high) ?
+                    zbin_oq_high : cpi->mb.zbin_over_quant;
+
+            Loop = Q != last_q;
+        }
+        else
+#endif
+            Loop = 0;
+
+        if (cpi->is_src_frame_alt_ref)
+            Loop = 0;
+
+        if (Loop == 1)
+        {
+            vp8_restore_coding_context(cpi);
+            loop_count++;
+#if CONFIG_INTERNAL_STATS
+            cpi->tot_recode_hits++;
+#endif
+        }
+    }
+    while (Loop == 1);
+
+#if 0
+    /* Experimental code for lagged and one pass
+     * Update stats used for one pass GF selection
+     */
+    {
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_coded_error = (double)cpi->prediction_error;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_intra_error = (double)cpi->intra_error;
+        cpi->one_pass_frame_stats[cpi->one_pass_frame_index].frame_pcnt_inter = (double)(100 - cpi->this_frame_percent_intra) / 100.0;
+    }
+#endif
+
+    /* Special case code to reduce pulsing when key frames are forced at a
+     * fixed interval. Note the reconstruction error if it is the frame before
+     * the force key frame
+     */
+    if ( cpi->next_key_frame_forced && (cpi->twopass.frames_to_key == 0) )
+    {
+        cpi->ambient_err = vp8_calc_ss_err(cpi->Source,
+                                           &cm->yv12_fb[cm->new_fb_idx]);
+    }
+
+    /* This frame's MVs are saved and will be used in next frame's MV predictor.
+     * Last frame has one more line(add to bottom) and one more column(add to
+     * right) than cm->mip. The edge elements are initialized to 0.
+     */
+#if CONFIG_MULTI_RES_ENCODING
+    if(!cpi->oxcf.mr_encoder_id && cm->show_frame)
+#else
+    if(cm->show_frame)   /* do not save for altref frame */
+#endif
+    {
+        int mb_row;
+        int mb_col;
+        /* Point to beginning of allocated MODE_INFO arrays. */
+        MODE_INFO *tmp = cm->mip;
+
+        if(cm->frame_type != KEY_FRAME)
+        {
+            for (mb_row = 0; mb_row < cm->mb_rows+1; mb_row ++)
+            {
+                for (mb_col = 0; mb_col < cm->mb_cols+1; mb_col ++)
+                {
+                    if(tmp->mbmi.ref_frame != INTRA_FRAME)
+                        cpi->lfmv[mb_col + mb_row*(cm->mode_info_stride+1)].as_int = tmp->mbmi.mv.as_int;
+
+                    cpi->lf_ref_frame_sign_bias[mb_col + mb_row*(cm->mode_info_stride+1)] = cm->ref_frame_sign_bias[tmp->mbmi.ref_frame];
+                    cpi->lf_ref_frame[mb_col + mb_row*(cm->mode_info_stride+1)] = tmp->mbmi.ref_frame;
+                    tmp++;
+                }
+            }
+        }
+    }
+
+    /* Count last ref frame 0,0 usage on current encoded frame. */
+    {
+        int mb_row;
+        int mb_col;
+        /* Point to beginning of MODE_INFO arrays. */
+        MODE_INFO *tmp = cm->mi;
+
+        cpi->zeromv_count = 0;
+
+        if(cm->frame_type != KEY_FRAME)
+        {
+            for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
+            {
+                for (mb_col = 0; mb_col < cm->mb_cols; mb_col ++)
+                {
+                    if (tmp->mbmi.mode == ZEROMV &&
+                       tmp->mbmi.ref_frame == LAST_FRAME)
+                        cpi->zeromv_count++;
+                    tmp++;
+                }
+                tmp++;
+            }
+        }
+    }
+
+#if CONFIG_MULTI_RES_ENCODING
+    vp8_cal_dissimilarity(cpi);
+#endif
+
+    /* Update the GF useage maps.
+     * This is done after completing the compression of a frame when all
+     * modes etc. are finalized but before loop filter
+     */
+    if (cpi->oxcf.number_of_layers == 1)
+        vp8_update_gf_useage_maps(cpi, cm, &cpi->mb);
+
+    if (cm->frame_type == KEY_FRAME)
+        cm->refresh_last_frame = 1;
+
+#if 0
+    {
+        FILE *f = fopen("gfactive.stt", "a");
+        fprintf(f, "%8d %8d %8d %8d %8d\n", cm->current_video_frame, (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols), cpi->this_iiratio, cpi->next_iiratio, cm->refresh_golden_frame);
+        fclose(f);
+    }
+#endif
+
+    /* For inter frames the current default behavior is that when
+     * cm->refresh_golden_frame is set we copy the old GF over to the ARF buffer
+     * This is purely an encoder decision at present.
+     */
+    if (!cpi->oxcf.error_resilient_mode && cm->refresh_golden_frame)
+        cm->copy_buffer_to_arf  = 2;
+    else
+        cm->copy_buffer_to_arf  = 0;
+
+    cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
+
+#if CONFIG_TEMPORAL_DENOISING
+    // Get some measure of the amount of noise, by measuring the (partial) mse
+    // between source and denoised buffer, for y channel. Partial refers to
+    // computing the sse for a sub-sample of the frame (i.e., skip x blocks along row/column),
+    // and only for blocks in that set that are consecutive ZEROMV_LAST mode.
+    // Do this every ~8 frames, to further reduce complexity.
+    // TODO(marpan): Keep this for now for the case cpi->oxcf.noise_sensitivity < 4,
+    // should be removed in favor of the process_denoiser_mode_change() function below.
+    if (cpi->oxcf.noise_sensitivity > 0 &&
+       cpi->oxcf.noise_sensitivity < 4 &&
+       !cpi->oxcf.screen_content_mode &&
+       cpi->frames_since_key%8 == 0 &&
+       cm->frame_type != KEY_FRAME) {
+       cpi->mse_source_denoised = measure_square_diff_partial(
+           &cpi->denoiser.yv12_running_avg[INTRA_FRAME], cpi->Source, cpi);
+    }
+
+    // For the adaptive denoising mode (noise_sensitivity == 4), sample the mse
+    // of source diff (between current and previous frame), and determine if we
+    // should switch the denoiser mode. Sampling refers to computing the mse for
+    // a sub-sample of the frame (i.e., skip x blocks along row/column), and
+    // only for blocks in that set that have used ZEROMV LAST, along with some
+    // constraint on the sum diff between blocks. This process is called every
+    // ~8 frames, to further reduce complexity.
+    if (cpi->oxcf.noise_sensitivity == 4 &&
+        !cpi->oxcf.screen_content_mode &&
+        cpi->frames_since_key % 8 == 0 &&
+        cm->frame_type != KEY_FRAME) {
+      process_denoiser_mode_change(cpi);
+    }
+#endif
+
+#if CONFIG_MULTITHREAD
+    if (cpi->b_multi_threaded)
+    {
+        /* start loopfilter in separate thread */
+        sem_post(&cpi->h_event_start_lpf);
+        cpi->b_lpf_running = 1;
+    }
+    else
+#endif
+    {
+        vp8_loopfilter_frame(cpi, cm);
+    }
+
+    update_reference_frames(cpi);
+
+#ifdef OUTPUT_YUV_DENOISED
+    vp8_write_yuv_frame(yuv_denoised_file,
+                        &cpi->denoiser.yv12_running_avg[INTRA_FRAME]);
+#endif
+
+#if !(CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    if (cpi->oxcf.error_resilient_mode)
+    {
+        cm->refresh_entropy_probs = 0;
+    }
+#endif
+
+#if CONFIG_MULTITHREAD
+    /* wait that filter_level is picked so that we can continue with stream packing */
+    if (cpi->b_multi_threaded)
+        sem_wait(&cpi->h_event_end_lpf);
+#endif
+
+    /* build the bitstream */
+    vp8_pack_bitstream(cpi, dest, dest_end, size);
+
+#if CONFIG_MULTITHREAD
+    /* if PSNR packets are generated we have to wait for the lpf */
+    if (cpi->b_lpf_running && cpi->b_calculate_psnr)
+    {
+        sem_wait(&cpi->h_event_end_lpf);
+        cpi->b_lpf_running = 0;
+    }
+#endif
+
+    /* Move storing frame_type out of the above loop since it is also
+     * needed in motion search besides loopfilter */
+    cm->last_frame_type = cm->frame_type;
+
+    /* Update rate control heuristics */
+    cpi->total_byte_count += (*size);
+    cpi->projected_frame_size = (*size) << 3;
+
+    if (cpi->oxcf.number_of_layers > 1)
+    {
+        unsigned int i;
+        for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
+          cpi->layer_context[i].total_byte_count += (*size);
+    }
+
+    if (!active_worst_qchanged)
+        vp8_update_rate_correction_factors(cpi, 2);
+
+    cpi->last_q[cm->frame_type] = cm->base_qindex;
+
+    if (cm->frame_type == KEY_FRAME)
+    {
+        vp8_adjust_key_frame_context(cpi);
+    }
+
+    /* Keep a record of ambient average Q. */
+    if (cm->frame_type != KEY_FRAME)
+        cpi->avg_frame_qindex = (2 + 3 * cpi->avg_frame_qindex + cm->base_qindex) >> 2;
+
+    /* Keep a record from which we can calculate the average Q excluding
+     * GF updates and key frames
+     */
+    if ((cm->frame_type != KEY_FRAME) && ((cpi->oxcf.number_of_layers > 1) ||
+        (!cm->refresh_golden_frame && !cm->refresh_alt_ref_frame)))
+    {
+        cpi->ni_frames++;
+
+        /* Calculate the average Q for normal inter frames (not key or GFU
+         * frames).
+         */
+        if ( cpi->pass == 2 )
+        {
+            cpi->ni_tot_qi += Q;
+            cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
+        }
+        else
+        {
+            /* Damp value for first few frames */
+            if (cpi->ni_frames > 150 )
+            {
+                cpi->ni_tot_qi += Q;
+                cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
+            }
+            /* For one pass, early in the clip ... average the current frame Q
+             * value with the worstq entered by the user as a dampening measure
+             */
+            else
+            {
+                cpi->ni_tot_qi += Q;
+                cpi->ni_av_qi = ((cpi->ni_tot_qi / cpi->ni_frames) + cpi->worst_quality + 1) / 2;
+            }
+
+            /* If the average Q is higher than what was used in the last
+             * frame (after going through the recode loop to keep the frame
+             * size within range) then use the last frame value - 1. The -1
+             * is designed to stop Q and hence the data rate, from
+             * progressively falling away during difficult sections, but at
+             * the same time reduce the number of itterations around the
+             * recode loop.
+             */
+            if (Q > cpi->ni_av_qi)
+                cpi->ni_av_qi = Q - 1;
+        }
+    }
+
+    /* Update the buffer level variable. */
+    /* Non-viewable frames are a special case and are treated as pure overhead. */
+    if ( !cm->show_frame )
+        cpi->bits_off_target -= cpi->projected_frame_size;
+    else
+        cpi->bits_off_target += cpi->av_per_frame_bandwidth - cpi->projected_frame_size;
+
+    /* Clip the buffer level to the maximum specified buffer size */
+    if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
+        cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
+
+    // If the frame dropper is not enabled, don't let the buffer level go below
+    // some threshold, given here by -|maximum_buffer_size|. For now we only do
+    // this for screen content input.
+    if (cpi->drop_frames_allowed == 0 && cpi->oxcf.screen_content_mode &&
+        cpi->bits_off_target < -cpi->oxcf.maximum_buffer_size)
+        cpi->bits_off_target = -cpi->oxcf.maximum_buffer_size;
+
+    /* Rolling monitors of whether we are over or underspending used to
+     * help regulate min and Max Q in two pass.
+     */
+    cpi->rolling_target_bits = ((cpi->rolling_target_bits * 3) + cpi->this_frame_target + 2) / 4;
+    cpi->rolling_actual_bits = ((cpi->rolling_actual_bits * 3) + cpi->projected_frame_size + 2) / 4;
+    cpi->long_rolling_target_bits = ((cpi->long_rolling_target_bits * 31) + cpi->this_frame_target + 16) / 32;
+    cpi->long_rolling_actual_bits = ((cpi->long_rolling_actual_bits * 31) + cpi->projected_frame_size + 16) / 32;
+
+    /* Actual bits spent */
+    cpi->total_actual_bits += cpi->projected_frame_size;
+
+    /* Debug stats */
+    cpi->total_target_vs_actual += (cpi->this_frame_target - cpi->projected_frame_size);
+
+    cpi->buffer_level = cpi->bits_off_target;
+
+    /* Propagate values to higher temporal layers */
+    if (cpi->oxcf.number_of_layers > 1)
+    {
+        unsigned int i;
+
+        for (i=cpi->current_layer+1; i<cpi->oxcf.number_of_layers; i++)
+        {
+            LAYER_CONTEXT *lc = &cpi->layer_context[i];
+            int bits_off_for_this_layer =
+               (int)(lc->target_bandwidth / lc->framerate -
+                     cpi->projected_frame_size);
+
+            lc->bits_off_target += bits_off_for_this_layer;
+
+            /* Clip buffer level to maximum buffer size for the layer */
+            if (lc->bits_off_target > lc->maximum_buffer_size)
+                lc->bits_off_target = lc->maximum_buffer_size;
+
+            lc->total_actual_bits += cpi->projected_frame_size;
+            lc->total_target_vs_actual += bits_off_for_this_layer;
+            lc->buffer_level = lc->bits_off_target;
+        }
+    }
+
+    /* Update bits left to the kf and gf groups to account for overshoot
+     * or undershoot on these frames
+     */
+    if (cm->frame_type == KEY_FRAME)
+    {
+        cpi->twopass.kf_group_bits += cpi->this_frame_target - cpi->projected_frame_size;
+
+        if (cpi->twopass.kf_group_bits < 0)
+            cpi->twopass.kf_group_bits = 0 ;
+    }
+    else if (cm->refresh_golden_frame || cm->refresh_alt_ref_frame)
+    {
+        cpi->twopass.gf_group_bits += cpi->this_frame_target - cpi->projected_frame_size;
+
+        if (cpi->twopass.gf_group_bits < 0)
+            cpi->twopass.gf_group_bits = 0 ;
+    }
+
+    if (cm->frame_type != KEY_FRAME)
+    {
+        if (cpi->common.refresh_alt_ref_frame)
+        {
+            cpi->last_skip_false_probs[2] = cpi->prob_skip_false;
+            cpi->last_skip_probs_q[2] = cm->base_qindex;
+        }
+        else if (cpi->common.refresh_golden_frame)
+        {
+            cpi->last_skip_false_probs[1] = cpi->prob_skip_false;
+            cpi->last_skip_probs_q[1] = cm->base_qindex;
+        }
+        else
+        {
+            cpi->last_skip_false_probs[0] = cpi->prob_skip_false;
+            cpi->last_skip_probs_q[0] = cm->base_qindex;
+
+            /* update the baseline */
+            cpi->base_skip_false_prob[cm->base_qindex] = cpi->prob_skip_false;
+
+        }
+    }
+
+#if 0 && CONFIG_INTERNAL_STATS
+    {
+        FILE *f = fopen("tmp.stt", "a");
+
+        vp8_clear_system_state();
+
+        if (cpi->twopass.total_left_stats.coded_error != 0.0)
+            fprintf(f, "%10d %10d %10d %10d %10d %10"PRId64" %10"PRId64
+                       "%10"PRId64" %10d %6d %6d %6d %6d %5d %5d %5d %8d "
+                       "%8.2lf %"PRId64" %10.3lf %10"PRId64" %8d\n",
+                       cpi->common.current_video_frame, cpi->this_frame_target,
+                       cpi->projected_frame_size,
+                       (cpi->projected_frame_size - cpi->this_frame_target),
+                       cpi->total_target_vs_actual,
+                       cpi->buffer_level,
+                       (cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
+                       cpi->total_actual_bits, cm->base_qindex,
+                       cpi->active_best_quality, cpi->active_worst_quality,
+                       cpi->ni_av_qi, cpi->cq_target_quality,
+                       cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
+                       cm->frame_type, cpi->gfu_boost,
+                       cpi->twopass.est_max_qcorrection_factor,
+                       cpi->twopass.bits_left,
+                       cpi->twopass.total_left_stats.coded_error,
+                       (double)cpi->twopass.bits_left /
+                           cpi->twopass.total_left_stats.coded_error,
+                       cpi->tot_recode_hits);
+        else
+            fprintf(f, "%10d %10d %10d %10d %10d %10"PRId64" %10"PRId64
+                       "%10"PRId64" %10d %6d %6d %6d %6d %5d %5d %5d %8d "
+                       "%8.2lf %"PRId64" %10.3lf %8d\n",
+                       cpi->common.current_video_frame, cpi->this_frame_target,
+                       cpi->projected_frame_size,
+                       (cpi->projected_frame_size - cpi->this_frame_target),
+                       cpi->total_target_vs_actual,
+                       cpi->buffer_level,
+                       (cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
+                       cpi->total_actual_bits, cm->base_qindex,
+                       cpi->active_best_quality, cpi->active_worst_quality,
+                       cpi->ni_av_qi, cpi->cq_target_quality,
+                       cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
+                       cm->frame_type, cpi->gfu_boost,
+                       cpi->twopass.est_max_qcorrection_factor,
+                       cpi->twopass.bits_left,
+                       cpi->twopass.total_left_stats.coded_error,
+                       cpi->tot_recode_hits);
+
+        fclose(f);
+
+        {
+            FILE *fmodes = fopen("Modes.stt", "a");
+
+            fprintf(fmodes, "%6d:%1d:%1d:%1d ",
+                        cpi->common.current_video_frame,
+                        cm->frame_type, cm->refresh_golden_frame,
+                        cm->refresh_alt_ref_frame);
+
+            fprintf(fmodes, "\n");
+
+            fclose(fmodes);
+        }
+    }
+
+#endif
+
+    if (cm->refresh_golden_frame == 1)
+        cm->frame_flags = cm->frame_flags | FRAMEFLAGS_GOLDEN;
+    else
+        cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_GOLDEN;
+
+    if (cm->refresh_alt_ref_frame == 1)
+        cm->frame_flags = cm->frame_flags | FRAMEFLAGS_ALTREF;
+    else
+        cm->frame_flags = cm->frame_flags&~FRAMEFLAGS_ALTREF;
+
+
+    if (cm->refresh_last_frame & cm->refresh_golden_frame)
+        /* both refreshed */
+        cpi->gold_is_last = 1;
+    else if (cm->refresh_last_frame ^ cm->refresh_golden_frame)
+        /* 1 refreshed but not the other */
+        cpi->gold_is_last = 0;
+
+    if (cm->refresh_last_frame & cm->refresh_alt_ref_frame)
+        /* both refreshed */
+        cpi->alt_is_last = 1;
+    else if (cm->refresh_last_frame ^ cm->refresh_alt_ref_frame)
+        /* 1 refreshed but not the other */
+        cpi->alt_is_last = 0;
+
+    if (cm->refresh_alt_ref_frame & cm->refresh_golden_frame)
+        /* both refreshed */
+        cpi->gold_is_alt = 1;
+    else if (cm->refresh_alt_ref_frame ^ cm->refresh_golden_frame)
+        /* 1 refreshed but not the other */
+        cpi->gold_is_alt = 0;
+
+    cpi->ref_frame_flags = VP8_ALTR_FRAME | VP8_GOLD_FRAME | VP8_LAST_FRAME;
+
+    if (cpi->gold_is_last)
+        cpi->ref_frame_flags &= ~VP8_GOLD_FRAME;
+
+    if (cpi->alt_is_last)
+        cpi->ref_frame_flags &= ~VP8_ALTR_FRAME;
+
+    if (cpi->gold_is_alt)
+        cpi->ref_frame_flags &= ~VP8_ALTR_FRAME;
+
+
+    if (!cpi->oxcf.error_resilient_mode)
+    {
+        if (cpi->oxcf.play_alternate && cm->refresh_alt_ref_frame && (cm->frame_type != KEY_FRAME))
+            /* Update the alternate reference frame stats as appropriate. */
+            update_alt_ref_frame_stats(cpi);
+        else
+            /* Update the Golden frame stats as appropriate. */
+            update_golden_frame_stats(cpi);
+    }
+
+    if (cm->frame_type == KEY_FRAME)
+    {
+        /* Tell the caller that the frame was coded as a key frame */
+        *frame_flags = cm->frame_flags | FRAMEFLAGS_KEY;
+
+        /* As this frame is a key frame  the next defaults to an inter frame. */
+        cm->frame_type = INTER_FRAME;
+
+        cpi->last_frame_percent_intra = 100;
+    }
+    else
+    {
+        *frame_flags = cm->frame_flags&~FRAMEFLAGS_KEY;
+
+        cpi->last_frame_percent_intra = cpi->this_frame_percent_intra;
+    }
+
+    /* Clear the one shot update flags for segmentation map and mode/ref
+     * loop filter deltas.
+     */
+    cpi->mb.e_mbd.update_mb_segmentation_map = 0;
+    cpi->mb.e_mbd.update_mb_segmentation_data = 0;
+    cpi->mb.e_mbd.mode_ref_lf_delta_update = 0;
+
+
+    /* Dont increment frame counters if this was an altref buffer update
+     * not a real frame
+     */
+    if (cm->show_frame)
+    {
+        cm->current_video_frame++;
+        cpi->frames_since_key++;
+        cpi->temporal_pattern_counter++;
+    }
+
+    /* reset to normal state now that we are done. */
+
+
+
+#if 0
+    {
+        char filename[512];
+        FILE *recon_file;
+        sprintf(filename, "enc%04d.yuv", (int) cm->current_video_frame);
+        recon_file = fopen(filename, "wb");
+        fwrite(cm->yv12_fb[cm->lst_fb_idx].buffer_alloc,
+               cm->yv12_fb[cm->lst_fb_idx].frame_size, 1, recon_file);
+        fclose(recon_file);
+    }
+#endif
+
+    /* DEBUG */
+    /* vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show); */
+
+
+}
+#if !(CONFIG_REALTIME_ONLY)
+static void Pass2Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest, unsigned char * dest_end, unsigned int *frame_flags)
+{
+
+    if (!cpi->common.refresh_alt_ref_frame)
+        vp8_second_pass(cpi);
+
+    encode_frame_to_data_rate(cpi, size, dest, dest_end, frame_flags);
+    cpi->twopass.bits_left -= 8 * *size;
+
+    if (!cpi->common.refresh_alt_ref_frame)
+    {
+        double two_pass_min_rate = (double)(cpi->oxcf.target_bandwidth
+            *cpi->oxcf.two_pass_vbrmin_section / 100);
+        cpi->twopass.bits_left += (int64_t)(two_pass_min_rate / cpi->framerate);
+    }
+}
+#endif
+
+int vp8_receive_raw_frame(VP8_COMP *cpi, unsigned int frame_flags, YV12_BUFFER_CONFIG *sd, int64_t time_stamp, int64_t end_time)
+{
+    struct vpx_usec_timer  timer;
+    int                    res = 0;
+
+    vpx_usec_timer_start(&timer);
+
+    /* Reinit the lookahead buffer if the frame size changes */
+    if (sd->y_width != cpi->oxcf.Width || sd->y_height != cpi->oxcf.Height)
+    {
+        assert(cpi->oxcf.lag_in_frames < 2);
+        dealloc_raw_frame_buffers(cpi);
+        alloc_raw_frame_buffers(cpi);
+    }
+
+    if(vp8_lookahead_push(cpi->lookahead, sd, time_stamp, end_time,
+                          frame_flags, cpi->active_map_enabled ? cpi->active_map : NULL))
+        res = -1;
+    vpx_usec_timer_mark(&timer);
+    cpi->time_receive_data += vpx_usec_timer_elapsed(&timer);
+
+    return res;
+}
+
+
+static int frame_is_reference(const VP8_COMP *cpi)
+{
+    const VP8_COMMON *cm = &cpi->common;
+    const MACROBLOCKD *xd = &cpi->mb.e_mbd;
+
+    return cm->frame_type == KEY_FRAME || cm->refresh_last_frame
+           || cm->refresh_golden_frame || cm->refresh_alt_ref_frame
+           || cm->copy_buffer_to_gf || cm->copy_buffer_to_arf
+           || cm->refresh_entropy_probs
+           || xd->mode_ref_lf_delta_update
+           || xd->update_mb_segmentation_map || xd->update_mb_segmentation_data;
+}
+
+
+int vp8_get_compressed_data(VP8_COMP *cpi, unsigned int *frame_flags, unsigned long *size, unsigned char *dest, unsigned char *dest_end, int64_t *time_stamp, int64_t *time_end, int flush)
+{
+    VP8_COMMON *cm;
+    struct vpx_usec_timer  tsctimer;
+    struct vpx_usec_timer  ticktimer;
+    struct vpx_usec_timer  cmptimer;
+    YV12_BUFFER_CONFIG    *force_src_buffer = NULL;
+
+    if (!cpi)
+        return -1;
+
+    cm = &cpi->common;
+
+    if (setjmp(cpi->common.error.jmp))
+    {
+        cpi->common.error.setjmp = 0;
+        vp8_clear_system_state();
+        return VPX_CODEC_CORRUPT_FRAME;
+    }
+
+    cpi->common.error.setjmp = 1;
+
+    vpx_usec_timer_start(&cmptimer);
+
+    cpi->source = NULL;
+
+#if !(CONFIG_REALTIME_ONLY)
+    /* Should we code an alternate reference frame */
+    if (cpi->oxcf.error_resilient_mode == 0 &&
+        cpi->oxcf.play_alternate &&
+        cpi->source_alt_ref_pending)
+    {
+        if ((cpi->source = vp8_lookahead_peek(cpi->lookahead,
+                                              cpi->frames_till_gf_update_due,
+                                              PEEK_FORWARD)))
+        {
+            cpi->alt_ref_source = cpi->source;
+            if (cpi->oxcf.arnr_max_frames > 0)
+            {
+                vp8_temporal_filter_prepare_c(cpi,
+                                              cpi->frames_till_gf_update_due);
+                force_src_buffer = &cpi->alt_ref_buffer;
+            }
+            cpi->frames_till_alt_ref_frame = cpi->frames_till_gf_update_due;
+            cm->refresh_alt_ref_frame = 1;
+            cm->refresh_golden_frame = 0;
+            cm->refresh_last_frame = 0;
+            cm->show_frame = 0;
+            /* Clear Pending alt Ref flag. */
+            cpi->source_alt_ref_pending = 0;
+            cpi->is_src_frame_alt_ref = 0;
+        }
+    }
+#endif
+
+    if (!cpi->source)
+    {
+        /* Read last frame source if we are encoding first pass. */
+        if (cpi->pass == 1 && cm->current_video_frame > 0)
+        {
+            if((cpi->last_source = vp8_lookahead_peek(cpi->lookahead, 1,
+                                                      PEEK_BACKWARD)) == NULL)
+              return -1;
+        }
+
+
+        if ((cpi->source = vp8_lookahead_pop(cpi->lookahead, flush)))
+        {
+            cm->show_frame = 1;
+
+            cpi->is_src_frame_alt_ref = cpi->alt_ref_source
+                                        && (cpi->source == cpi->alt_ref_source);
+
+            if(cpi->is_src_frame_alt_ref)
+                cpi->alt_ref_source = NULL;
+        }
+    }
+
+    if (cpi->source)
+    {
+        cpi->Source = force_src_buffer ? force_src_buffer : &cpi->source->img;
+        cpi->un_scaled_source = cpi->Source;
+        *time_stamp = cpi->source->ts_start;
+        *time_end = cpi->source->ts_end;
+        *frame_flags = cpi->source->flags;
+
+        if (cpi->pass == 1 && cm->current_video_frame > 0)
+        {
+            cpi->last_frame_unscaled_source = &cpi->last_source->img;
+        }
+    }
+    else
+    {
+        *size = 0;
+#if !(CONFIG_REALTIME_ONLY)
+
+        if (flush && cpi->pass == 1 && !cpi->twopass.first_pass_done)
+        {
+            vp8_end_first_pass(cpi);    /* get last stats packet */
+            cpi->twopass.first_pass_done = 1;
+        }
+
+#endif
+
+        return -1;
+    }
+
+    if (cpi->source->ts_start < cpi->first_time_stamp_ever)
+    {
+        cpi->first_time_stamp_ever = cpi->source->ts_start;
+        cpi->last_end_time_stamp_seen = cpi->source->ts_start;
+    }
+
+    /* adjust frame rates based on timestamps given */
+    if (cm->show_frame)
+    {
+        int64_t this_duration;
+        int step = 0;
+
+        if (cpi->source->ts_start == cpi->first_time_stamp_ever)
+        {
+            this_duration = cpi->source->ts_end - cpi->source->ts_start;
+            step = 1;
+        }
+        else
+        {
+            int64_t last_duration;
+
+            this_duration = cpi->source->ts_end - cpi->last_end_time_stamp_seen;
+            last_duration = cpi->last_end_time_stamp_seen
+                            - cpi->last_time_stamp_seen;
+            /* do a step update if the duration changes by 10% */
+            if (last_duration)
+                step = (int)(((this_duration - last_duration) *
+                            10 / last_duration));
+        }
+
+        if (this_duration)
+        {
+            if (step)
+                cpi->ref_framerate = 10000000.0 / this_duration;
+            else
+            {
+                double avg_duration, interval;
+
+                /* Average this frame's rate into the last second's average
+                 * frame rate. If we haven't seen 1 second yet, then average
+                 * over the whole interval seen.
+                 */
+                interval = (double)(cpi->source->ts_end -
+                                    cpi->first_time_stamp_ever);
+                if(interval > 10000000.0)
+                    interval = 10000000;
+
+                avg_duration = 10000000.0 / cpi->ref_framerate;
+                avg_duration *= (interval - avg_duration + this_duration);
+                avg_duration /= interval;
+
+                cpi->ref_framerate = 10000000.0 / avg_duration;
+            }
+#if CONFIG_MULTI_RES_ENCODING
+            if (cpi->oxcf.mr_total_resolutions > 1) {
+              LOWER_RES_FRAME_INFO* low_res_frame_info = (LOWER_RES_FRAME_INFO*)
+                  cpi->oxcf.mr_low_res_mode_info;
+              // Frame rate should be the same for all spatial layers in
+              // multi-res-encoding (simulcast), so we constrain the frame for
+              // higher layers to be that of lowest resolution. This is needed
+              // as he application may decide to skip encoding a high layer and
+              // then start again, in which case a big jump in time-stamps will
+              // be received for that high layer, which will yield an incorrect
+              // frame rate (from time-stamp adjustment in above calculation).
+              if (cpi->oxcf.mr_encoder_id) {
+                 cpi->ref_framerate = low_res_frame_info->low_res_framerate;
+              }
+              else {
+                // Keep track of frame rate for lowest resolution.
+                low_res_frame_info->low_res_framerate = cpi->ref_framerate;
+              }
+            }
+#endif
+            if (cpi->oxcf.number_of_layers > 1)
+            {
+                unsigned int i;
+
+                /* Update frame rates for each layer */
+                assert(cpi->oxcf.number_of_layers <= VPX_TS_MAX_LAYERS);
+                for (i = 0; i < cpi->oxcf.number_of_layers &&
+                     i < VPX_TS_MAX_LAYERS; ++i)
+                {
+                    LAYER_CONTEXT *lc = &cpi->layer_context[i];
+                    lc->framerate = cpi->ref_framerate /
+                                    cpi->oxcf.rate_decimator[i];
+                }
+            }
+            else
+                vp8_new_framerate(cpi, cpi->ref_framerate);
+        }
+
+        cpi->last_time_stamp_seen = cpi->source->ts_start;
+        cpi->last_end_time_stamp_seen = cpi->source->ts_end;
+    }
+
+    if (cpi->oxcf.number_of_layers > 1)
+    {
+        int layer;
+
+        update_layer_contexts (cpi);
+
+        /* Restore layer specific context & set frame rate */
+        if (cpi->temporal_layer_id >= 0) {
+          layer = cpi->temporal_layer_id;
+        } else {
+          layer = cpi->oxcf.layer_id[
+                  cpi->temporal_pattern_counter % cpi->oxcf.periodicity];
+        }
+        restore_layer_context (cpi, layer);
+        vp8_new_framerate(cpi, cpi->layer_context[layer].framerate);
+    }
+
+    if (cpi->compressor_speed == 2)
+    {
+        vpx_usec_timer_start(&tsctimer);
+        vpx_usec_timer_start(&ticktimer);
+    }
+
+    cpi->lf_zeromv_pct = (cpi->zeromv_count * 100)/cm->MBs;
+
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+    {
+        int i;
+        const int num_part = (1 << cm->multi_token_partition);
+        /* the available bytes in dest */
+        const unsigned long dest_size = dest_end - dest;
+        const int tok_part_buff_size = (dest_size * 9) / (10 * num_part);
+
+        unsigned char *dp = dest;
+
+        cpi->partition_d[0] = dp;
+        dp += dest_size/10;         /* reserve 1/10 for control partition */
+        cpi->partition_d_end[0] = dp;
+
+        for(i = 0; i < num_part; i++)
+        {
+            cpi->partition_d[i + 1] = dp;
+            dp += tok_part_buff_size;
+            cpi->partition_d_end[i + 1] = dp;
+        }
+    }
+#endif
+
+    /* start with a 0 size frame */
+    *size = 0;
+
+    /* Clear down mmx registers */
+    vp8_clear_system_state();
+
+    cm->frame_type = INTER_FRAME;
+    cm->frame_flags = *frame_flags;
+
+#if 0
+
+    if (cm->refresh_alt_ref_frame)
+    {
+        cm->refresh_golden_frame = 0;
+        cm->refresh_last_frame = 0;
+    }
+    else
+    {
+        cm->refresh_golden_frame = 0;
+        cm->refresh_last_frame = 1;
+    }
+
+#endif
+    /* find a free buffer for the new frame */
+    {
+        int i = 0;
+        for(; i < NUM_YV12_BUFFERS; i++)
+        {
+            if(!cm->yv12_fb[i].flags)
+            {
+                cm->new_fb_idx = i;
+                break;
+            }
+        }
+
+        assert(i < NUM_YV12_BUFFERS );
+    }
+#if !(CONFIG_REALTIME_ONLY)
+
+    if (cpi->pass == 1)
+    {
+        Pass1Encode(cpi, size, dest, frame_flags);
+    }
+    else if (cpi->pass == 2)
+    {
+        Pass2Encode(cpi, size, dest, dest_end, frame_flags);
+    }
+    else
+#endif
+        encode_frame_to_data_rate(cpi, size, dest, dest_end, frame_flags);
+
+    if (cpi->compressor_speed == 2)
+    {
+        unsigned int duration, duration2;
+        vpx_usec_timer_mark(&tsctimer);
+        vpx_usec_timer_mark(&ticktimer);
+
+        duration = (int)(vpx_usec_timer_elapsed(&ticktimer));
+        duration2 = (unsigned int)((double)duration / 2);
+
+        if (cm->frame_type != KEY_FRAME)
+        {
+            if (cpi->avg_encode_time == 0)
+                cpi->avg_encode_time = duration;
+            else
+                cpi->avg_encode_time = (7 * cpi->avg_encode_time + duration) >> 3;
+        }
+
+        if (duration2)
+        {
+            {
+
+                if (cpi->avg_pick_mode_time == 0)
+                    cpi->avg_pick_mode_time = duration2;
+                else
+                    cpi->avg_pick_mode_time = (7 * cpi->avg_pick_mode_time + duration2) >> 3;
+            }
+        }
+
+    }
+
+    if (cm->refresh_entropy_probs == 0)
+    {
+        memcpy(&cm->fc, &cm->lfc, sizeof(cm->fc));
+    }
+
+    /* Save the contexts separately for alt ref, gold and last. */
+    /* (TODO jbb -> Optimize this with pointers to avoid extra copies. ) */
+    if(cm->refresh_alt_ref_frame)
+        memcpy(&cpi->lfc_a, &cm->fc, sizeof(cm->fc));
+
+    if(cm->refresh_golden_frame)
+        memcpy(&cpi->lfc_g, &cm->fc, sizeof(cm->fc));
+
+    if(cm->refresh_last_frame)
+        memcpy(&cpi->lfc_n, &cm->fc, sizeof(cm->fc));
+
+    /* if its a dropped frame honor the requests on subsequent frames */
+    if (*size > 0)
+    {
+        cpi->droppable = !frame_is_reference(cpi);
+
+        /* return to normal state */
+        cm->refresh_entropy_probs = 1;
+        cm->refresh_alt_ref_frame = 0;
+        cm->refresh_golden_frame = 0;
+        cm->refresh_last_frame = 1;
+        cm->frame_type = INTER_FRAME;
+
+    }
+
+    /* Save layer specific state */
+    if (cpi->oxcf.number_of_layers > 1)
+        save_layer_context (cpi);
+
+    vpx_usec_timer_mark(&cmptimer);
+    cpi->time_compress_data += vpx_usec_timer_elapsed(&cmptimer);
+
+    if (cpi->b_calculate_psnr && cpi->pass != 1 && cm->show_frame)
+    {
+        generate_psnr_packet(cpi);
+    }
+
+#if CONFIG_INTERNAL_STATS
+
+    if (cpi->pass != 1)
+    {
+        cpi->bytes += *size;
+
+        if (cm->show_frame)
+        {
+            cpi->common.show_frame_mi = cpi->common.mi;
+            cpi->count ++;
+
+            if (cpi->b_calculate_psnr)
+            {
+                uint64_t ye,ue,ve;
+                double frame_psnr;
+                YV12_BUFFER_CONFIG      *orig = cpi->Source;
+                YV12_BUFFER_CONFIG      *recon = cpi->common.frame_to_show;
+                unsigned int y_width = cpi->common.Width;
+                unsigned int y_height = cpi->common.Height;
+                unsigned int uv_width = (y_width + 1) / 2;
+                unsigned int uv_height = (y_height + 1) / 2;
+                int y_samples = y_height * y_width;
+                int uv_samples = uv_height * uv_width;
+                int t_samples = y_samples + 2 * uv_samples;
+                double sq_error;
+
+                ye = calc_plane_error(orig->y_buffer, orig->y_stride,
+                  recon->y_buffer, recon->y_stride, y_width, y_height);
+
+                ue = calc_plane_error(orig->u_buffer, orig->uv_stride,
+                  recon->u_buffer, recon->uv_stride, uv_width, uv_height);
+
+                ve = calc_plane_error(orig->v_buffer, orig->uv_stride,
+                  recon->v_buffer, recon->uv_stride, uv_width, uv_height);
+
+                sq_error = (double)(ye + ue + ve);
+
+                frame_psnr = vpx_sse_to_psnr(t_samples, 255.0, sq_error);
+
+                cpi->total_y += vpx_sse_to_psnr(y_samples, 255.0, (double)ye);
+                cpi->total_u += vpx_sse_to_psnr(uv_samples, 255.0, (double)ue);
+                cpi->total_v += vpx_sse_to_psnr(uv_samples, 255.0, (double)ve);
+                cpi->total_sq_error += sq_error;
+                cpi->total  += frame_psnr;
+#if CONFIG_POSTPROC
+                {
+                    YV12_BUFFER_CONFIG      *pp = &cm->post_proc_buffer;
+                    double sq_error2;
+                    double frame_psnr2, frame_ssim2 = 0;
+                    double weight = 0;
+
+                    vp8_deblock(cm, cm->frame_to_show, &cm->post_proc_buffer, cm->filter_level * 10 / 6, 1, 0);
+                    vp8_clear_system_state();
+
+                    ye = calc_plane_error(orig->y_buffer, orig->y_stride,
+                      pp->y_buffer, pp->y_stride, y_width, y_height);
+
+                    ue = calc_plane_error(orig->u_buffer, orig->uv_stride,
+                      pp->u_buffer, pp->uv_stride, uv_width, uv_height);
+
+                    ve = calc_plane_error(orig->v_buffer, orig->uv_stride,
+                      pp->v_buffer, pp->uv_stride, uv_width, uv_height);
+
+                    sq_error2 = (double)(ye + ue + ve);
+
+                    frame_psnr2 = vpx_sse_to_psnr(t_samples, 255.0, sq_error2);
+
+                    cpi->totalp_y += vpx_sse_to_psnr(y_samples,
+                                                     255.0, (double)ye);
+                    cpi->totalp_u += vpx_sse_to_psnr(uv_samples,
+                                                     255.0, (double)ue);
+                    cpi->totalp_v += vpx_sse_to_psnr(uv_samples,
+                                                     255.0, (double)ve);
+                    cpi->total_sq_error2 += sq_error2;
+                    cpi->totalp  += frame_psnr2;
+
+                    frame_ssim2 = vp8_calc_ssim(cpi->Source,
+                      &cm->post_proc_buffer, 1, &weight);
+
+                    cpi->summed_quality += frame_ssim2 * weight;
+                    cpi->summed_weights += weight;
+
+                    if (cpi->oxcf.number_of_layers > 1)
+                    {
+                         unsigned int i;
+
+                         for (i=cpi->current_layer;
+                                       i<cpi->oxcf.number_of_layers; i++)
+                         {
+                             cpi->frames_in_layer[i]++;
+
+                             cpi->bytes_in_layer[i] += *size;
+                             cpi->sum_psnr[i]       += frame_psnr;
+                             cpi->sum_psnr_p[i]     += frame_psnr2;
+                             cpi->total_error2[i]   += sq_error;
+                             cpi->total_error2_p[i] += sq_error2;
+                             cpi->sum_ssim[i]       += frame_ssim2 * weight;
+                             cpi->sum_weights[i]    += weight;
+                         }
+                    }
+                }
+#endif
+            }
+
+            if (cpi->b_calculate_ssimg)
+            {
+                double y, u, v, frame_all;
+                frame_all =  vp8_calc_ssimg(cpi->Source, cm->frame_to_show,
+                    &y, &u, &v);
+
+                if (cpi->oxcf.number_of_layers > 1)
+                {
+                    unsigned int i;
+
+                    for (i=cpi->current_layer;
+                         i<cpi->oxcf.number_of_layers; i++)
+                    {
+                        if (!cpi->b_calculate_psnr)
+                            cpi->frames_in_layer[i]++;
+
+                        cpi->total_ssimg_y_in_layer[i] += y;
+                        cpi->total_ssimg_u_in_layer[i] += u;
+                        cpi->total_ssimg_v_in_layer[i] += v;
+                        cpi->total_ssimg_all_in_layer[i] += frame_all;
+                    }
+                }
+                else
+                {
+                    cpi->total_ssimg_y += y;
+                    cpi->total_ssimg_u += u;
+                    cpi->total_ssimg_v += v;
+                    cpi->total_ssimg_all += frame_all;
+                }
+            }
+
+        }
+    }
+
+#if 0
+
+    if (cpi->common.frame_type != 0 && cpi->common.base_qindex == cpi->oxcf.worst_allowed_q)
+    {
+        skiptruecount += cpi->skip_true_count;
+        skipfalsecount += cpi->skip_false_count;
+    }
+
+#endif
+#if 0
+
+    if (cpi->pass != 1)
+    {
+        FILE *f = fopen("skip.stt", "a");
+        fprintf(f, "frame:%4d flags:%4x Q:%4d P:%4d Size:%5d\n", cpi->common.current_video_frame, *frame_flags, cpi->common.base_qindex, cpi->prob_skip_false, *size);
+
+        if (cpi->is_src_frame_alt_ref == 1)
+            fprintf(f, "skipcount: %4d framesize: %d\n", cpi->skip_true_count , *size);
+
+        fclose(f);
+    }
+
+#endif
+#endif
+
+    cpi->common.error.setjmp = 0;
+
+    return 0;
+}
+
+int vp8_get_preview_raw_frame(VP8_COMP *cpi, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t *flags)
+{
+    if (cpi->common.refresh_alt_ref_frame)
+        return -1;
+    else
+    {
+        int ret;
+
+#if CONFIG_MULTITHREAD
+        if(cpi->b_lpf_running)
+        {
+            sem_wait(&cpi->h_event_end_lpf);
+            cpi->b_lpf_running = 0;
+        }
+#endif
+
+#if CONFIG_POSTPROC
+        cpi->common.show_frame_mi = cpi->common.mi;
+        ret = vp8_post_proc_frame(&cpi->common, dest, flags);
+#else
+        (void)flags;
+
+        if (cpi->common.frame_to_show)
+        {
+            *dest = *cpi->common.frame_to_show;
+            dest->y_width = cpi->common.Width;
+            dest->y_height = cpi->common.Height;
+            dest->uv_height = cpi->common.Height / 2;
+            ret = 0;
+        }
+        else
+        {
+            ret = -1;
+        }
+
+#endif
+        vp8_clear_system_state();
+        return ret;
+    }
+}
+
+int vp8_set_roimap(VP8_COMP *cpi, unsigned char *map, unsigned int rows, unsigned int cols, int delta_q[4], int delta_lf[4], unsigned int threshold[4])
+{
+    signed char feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+    int internal_delta_q[MAX_MB_SEGMENTS];
+    const int range = 63;
+    int i;
+
+    // This method is currently incompatible with the cyclic refresh method
+    if ( cpi->cyclic_refresh_mode_enabled )
+        return -1;
+
+    // Check number of rows and columns match
+    if (cpi->common.mb_rows != rows || cpi->common.mb_cols != cols)
+        return -1;
+
+    // Range check the delta Q values and convert the external Q range values
+    // to internal ones.
+    if ( (abs(delta_q[0]) > range) || (abs(delta_q[1]) > range) ||
+         (abs(delta_q[2]) > range) || (abs(delta_q[3]) > range) )
+        return -1;
+
+    // Range check the delta lf values
+    if ( (abs(delta_lf[0]) > range) || (abs(delta_lf[1]) > range) ||
+         (abs(delta_lf[2]) > range) || (abs(delta_lf[3]) > range) )
+        return -1;
+
+    if (!map)
+    {
+        disable_segmentation(cpi);
+        return 0;
+    }
+
+    // Translate the external delta q values to internal values.
+    for ( i = 0; i < MAX_MB_SEGMENTS; i++ )
+        internal_delta_q[i] =
+            ( delta_q[i] >= 0 ) ? q_trans[delta_q[i]] : -q_trans[-delta_q[i]];
+
+    /* Set the segmentation Map */
+    set_segmentation_map(cpi, map);
+
+    /* Activate segmentation. */
+    enable_segmentation(cpi);
+
+    /* Set up the quant segment data */
+    feature_data[MB_LVL_ALT_Q][0] = internal_delta_q[0];
+    feature_data[MB_LVL_ALT_Q][1] = internal_delta_q[1];
+    feature_data[MB_LVL_ALT_Q][2] = internal_delta_q[2];
+    feature_data[MB_LVL_ALT_Q][3] = internal_delta_q[3];
+
+    /* Set up the loop segment data s */
+    feature_data[MB_LVL_ALT_LF][0] = delta_lf[0];
+    feature_data[MB_LVL_ALT_LF][1] = delta_lf[1];
+    feature_data[MB_LVL_ALT_LF][2] = delta_lf[2];
+    feature_data[MB_LVL_ALT_LF][3] = delta_lf[3];
+
+    cpi->segment_encode_breakout[0] = threshold[0];
+    cpi->segment_encode_breakout[1] = threshold[1];
+    cpi->segment_encode_breakout[2] = threshold[2];
+    cpi->segment_encode_breakout[3] = threshold[3];
+
+    /* Initialise the feature data structure */
+    set_segment_data(cpi, &feature_data[0][0], SEGMENT_DELTADATA);
+
+    return 0;
+}
+
+int vp8_set_active_map(VP8_COMP *cpi, unsigned char *map, unsigned int rows, unsigned int cols)
+{
+    if (rows == cpi->common.mb_rows && cols == cpi->common.mb_cols)
+    {
+        if (map)
+        {
+            memcpy(cpi->active_map, map, rows * cols);
+            cpi->active_map_enabled = 1;
+        }
+        else
+            cpi->active_map_enabled = 0;
+
+        return 0;
+    }
+    else
+    {
+        return -1 ;
+    }
+}
+
+int vp8_set_internal_size(VP8_COMP *cpi, VPX_SCALING horiz_mode, VPX_SCALING vert_mode)
+{
+    if (horiz_mode <= ONETWO)
+        cpi->common.horiz_scale = horiz_mode;
+    else
+        return -1;
+
+    if (vert_mode <= ONETWO)
+        cpi->common.vert_scale  = vert_mode;
+    else
+        return -1;
+
+    return 0;
+}
+
+
+
+int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest)
+{
+    int i, j;
+    int Total = 0;
+
+    unsigned char *src = source->y_buffer;
+    unsigned char *dst = dest->y_buffer;
+
+    /* Loop through the Y plane raw and reconstruction data summing
+     * (square differences)
+     */
+    for (i = 0; i < source->y_height; i += 16)
+    {
+        for (j = 0; j < source->y_width; j += 16)
+        {
+            unsigned int sse;
+            Total += vpx_mse16x16(src + j, source->y_stride,
+                                  dst + j, dest->y_stride, &sse);
+        }
+
+        src += 16 * source->y_stride;
+        dst += 16 * dest->y_stride;
+    }
+
+    return Total;
+}
+
+
+int vp8_get_quantizer(VP8_COMP *cpi)
+{
+    return cpi->common.base_qindex;
+}
diff --git a/media/libvpx/vp8/encoder/onyx_int.h b/media/libvpx/vp8/encoder/onyx_int.h
new file mode 100644
index 000000000..c48e2f447
--- /dev/null
+++ b/media/libvpx/vp8/encoder/onyx_int.h
@@ -0,0 +1,751 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_ONYX_INT_H_
+#define VP8_ENCODER_ONYX_INT_H_
+
+#include <stdio.h>
+#include "vpx_config.h"
+#include "vp8/common/onyx.h"
+#include "treewriter.h"
+#include "tokenize.h"
+#include "vp8/common/onyxc_int.h"
+#include "vp8/common/variance.h"
+#include "encodemb.h"
+#include "quantize.h"
+#include "vp8/common/entropy.h"
+#include "vp8/common/threading.h"
+#include "vpx_ports/mem.h"
+#include "vpx/internal/vpx_codec_internal.h"
+#include "vpx/vp8.h"
+#include "mcomp.h"
+#include "vp8/common/findnearmv.h"
+#include "lookahead.h"
+#if CONFIG_TEMPORAL_DENOISING
+#include "vp8/encoder/denoising.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MIN_GF_INTERVAL             4
+#define DEFAULT_GF_INTERVAL         7
+
+#define KEY_FRAME_CONTEXT 5
+
+#define MAX_LAG_BUFFERS (CONFIG_REALTIME_ONLY? 1 : 25)
+
+#define AF_THRESH   25
+#define AF_THRESH2  100
+#define ARF_DECAY_THRESH 12
+
+
+#define MIN_THRESHMULT  32
+#define MAX_THRESHMULT  512
+
+#define GF_ZEROMV_ZBIN_BOOST 12
+#define LF_ZEROMV_ZBIN_BOOST 6
+#define MV_ZBIN_BOOST        4
+#define ZBIN_OQ_MAX 192
+
+#if !(CONFIG_REALTIME_ONLY)
+#define VP8_TEMPORAL_ALT_REF 1
+#endif
+
+typedef struct
+{
+    int kf_indicated;
+    unsigned int frames_since_key;
+    unsigned int frames_since_golden;
+    int filter_level;
+    int frames_till_gf_update_due;
+    int recent_ref_frame_usage[MAX_REF_FRAMES];
+
+    MV_CONTEXT mvc[2];
+    int mvcosts[2][MVvals+1];
+
+#ifdef MODE_STATS
+    int y_modes[5];
+    int uv_modes[4];
+    int b_modes[10];
+    int inter_y_modes[10];
+    int inter_uv_modes[4];
+    int inter_b_modes[10];
+#endif
+
+    vp8_prob ymode_prob[4], uv_mode_prob[3];   /* interframe intra mode probs */
+    vp8_prob kf_ymode_prob[4], kf_uv_mode_prob[3];   /* keyframe "" */
+
+    int ymode_count[5], uv_mode_count[4];  /* intra MB type cts this frame */
+
+    int count_mb_ref_frame_usage[MAX_REF_FRAMES];
+
+    int this_frame_percent_intra;
+    int last_frame_percent_intra;
+
+
+} CODING_CONTEXT;
+
+typedef struct
+{
+    double frame;
+    double intra_error;
+    double coded_error;
+    double ssim_weighted_pred_err;
+    double pcnt_inter;
+    double pcnt_motion;
+    double pcnt_second_ref;
+    double pcnt_neutral;
+    double MVr;
+    double mvr_abs;
+    double MVc;
+    double mvc_abs;
+    double MVrv;
+    double MVcv;
+    double mv_in_out_count;
+    double new_mv_count;
+    double duration;
+    double count;
+}
+FIRSTPASS_STATS;
+
+typedef struct
+{
+    int frames_so_far;
+    double frame_intra_error;
+    double frame_coded_error;
+    double frame_pcnt_inter;
+    double frame_pcnt_motion;
+    double frame_mvr;
+    double frame_mvr_abs;
+    double frame_mvc;
+    double frame_mvc_abs;
+
+} ONEPASS_FRAMESTATS;
+
+
+typedef enum
+{
+    THR_ZERO1          = 0,
+    THR_DC             = 1,
+
+    THR_NEAREST1       = 2,
+    THR_NEAR1          = 3,
+
+    THR_ZERO2          = 4,
+    THR_NEAREST2       = 5,
+
+    THR_ZERO3          = 6,
+    THR_NEAREST3       = 7,
+
+    THR_NEAR2          = 8,
+    THR_NEAR3          = 9,
+
+    THR_V_PRED         = 10,
+    THR_H_PRED         = 11,
+    THR_TM             = 12,
+
+    THR_NEW1           = 13,
+    THR_NEW2           = 14,
+    THR_NEW3           = 15,
+
+    THR_SPLIT1         = 16,
+    THR_SPLIT2         = 17,
+    THR_SPLIT3         = 18,
+
+    THR_B_PRED         = 19
+}
+THR_MODES;
+
+typedef enum
+{
+    DIAMOND = 0,
+    NSTEP = 1,
+    HEX = 2
+} SEARCH_METHODS;
+
+typedef struct
+{
+    int RD;
+    SEARCH_METHODS search_method;
+    int improved_quant;
+    int improved_dct;
+    int auto_filter;
+    int recode_loop;
+    int iterative_sub_pixel;
+    int half_pixel_search;
+    int quarter_pixel_search;
+    int thresh_mult[MAX_MODES];
+    int max_step_search_steps;
+    int first_step;
+    int optimize_coefficients;
+
+    int use_fastquant_for_pick;
+    int no_skip_block4x4_search;
+    int improved_mv_pred;
+
+} SPEED_FEATURES;
+
+typedef struct
+{
+    MACROBLOCK  mb;
+    int segment_counts[MAX_MB_SEGMENTS];
+    int totalrate;
+} MB_ROW_COMP;
+
+typedef struct
+{
+    TOKENEXTRA *start;
+    TOKENEXTRA *stop;
+} TOKENLIST;
+
+typedef struct
+{
+    int ithread;
+    void *ptr1;
+    void *ptr2;
+} ENCODETHREAD_DATA;
+typedef struct
+{
+    int ithread;
+    void *ptr1;
+} LPFTHREAD_DATA;
+
+enum
+{
+    BLOCK_16X8,
+    BLOCK_8X16,
+    BLOCK_8X8,
+    BLOCK_4X4,
+    BLOCK_16X16,
+    BLOCK_MAX_SEGMENTS
+};
+
+typedef struct
+{
+    /* Layer configuration */
+    double framerate;
+    int target_bandwidth;
+
+    /* Layer specific coding parameters */
+    int64_t starting_buffer_level;
+    int64_t optimal_buffer_level;
+    int64_t maximum_buffer_size;
+    int64_t starting_buffer_level_in_ms;
+    int64_t optimal_buffer_level_in_ms;
+    int64_t maximum_buffer_size_in_ms;
+
+    int avg_frame_size_for_layer;
+
+    int64_t buffer_level;
+    int64_t bits_off_target;
+
+    int64_t total_actual_bits;
+    int total_target_vs_actual;
+
+    int worst_quality;
+    int active_worst_quality;
+    int best_quality;
+    int active_best_quality;
+
+    int ni_av_qi;
+    int ni_tot_qi;
+    int ni_frames;
+    int avg_frame_qindex;
+
+    double rate_correction_factor;
+    double key_frame_rate_correction_factor;
+    double gf_rate_correction_factor;
+
+    int zbin_over_quant;
+
+    int inter_frame_target;
+    int64_t total_byte_count;
+
+    int filter_level;
+
+    int last_frame_percent_intra;
+
+    int count_mb_ref_frame_usage[MAX_REF_FRAMES];
+
+} LAYER_CONTEXT;
+
+typedef struct VP8_COMP
+{
+
+    DECLARE_ALIGNED(16, short, Y1quant[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y1quant_shift[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y1zbin[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y1round[QINDEX_RANGE][16]);
+
+    DECLARE_ALIGNED(16, short, Y2quant[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y2quant_shift[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y2zbin[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y2round[QINDEX_RANGE][16]);
+
+    DECLARE_ALIGNED(16, short, UVquant[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, UVquant_shift[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, UVzbin[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, UVround[QINDEX_RANGE][16]);
+
+    DECLARE_ALIGNED(16, short, zrun_zbin_boost_y1[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, zrun_zbin_boost_y2[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, zrun_zbin_boost_uv[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y1quant_fast[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, Y2quant_fast[QINDEX_RANGE][16]);
+    DECLARE_ALIGNED(16, short, UVquant_fast[QINDEX_RANGE][16]);
+
+
+    MACROBLOCK mb;
+    VP8_COMMON common;
+    vp8_writer bc[9]; /* one boolcoder for each partition */
+
+    VP8_CONFIG oxcf;
+
+    struct lookahead_ctx    *lookahead;
+    struct lookahead_entry  *source;
+    struct lookahead_entry  *alt_ref_source;
+    struct lookahead_entry  *last_source;
+
+    YV12_BUFFER_CONFIG *Source;
+    YV12_BUFFER_CONFIG *un_scaled_source;
+    YV12_BUFFER_CONFIG scaled_source;
+    YV12_BUFFER_CONFIG *last_frame_unscaled_source;
+
+    unsigned int frames_till_alt_ref_frame;
+    /* frame in src_buffers has been identified to be encoded as an alt ref */
+    int source_alt_ref_pending;
+    /* an alt ref frame has been encoded and is usable */
+    int source_alt_ref_active;
+    /* source of frame to encode is an exact copy of an alt ref frame */
+    int is_src_frame_alt_ref;
+
+    /* golden frame same as last frame ( short circuit gold searches) */
+    int gold_is_last;
+    /* Alt reference frame same as last ( short circuit altref search) */
+    int alt_is_last;
+    /* don't do both alt and gold search ( just do gold). */
+    int gold_is_alt;
+
+    YV12_BUFFER_CONFIG pick_lf_lvl_frame;
+
+    TOKENEXTRA *tok;
+    unsigned int tok_count;
+
+
+    unsigned int frames_since_key;
+    unsigned int key_frame_frequency;
+    unsigned int this_key_frame_forced;
+    unsigned int next_key_frame_forced;
+
+    /* Ambient reconstruction err target for force key frames */
+    int ambient_err;
+
+    unsigned int mode_check_freq[MAX_MODES];
+
+    int rd_baseline_thresh[MAX_MODES];
+
+    int RDMULT;
+    int RDDIV ;
+
+    CODING_CONTEXT coding_context;
+
+    /* Rate targetting variables */
+    int64_t last_prediction_error;
+    int64_t last_intra_error;
+
+    int this_frame_target;
+    int projected_frame_size;
+    int last_q[2];                   /* Separate values for Intra/Inter */
+
+    double rate_correction_factor;
+    double key_frame_rate_correction_factor;
+    double gf_rate_correction_factor;
+
+    unsigned int frames_since_golden;
+    /* Count down till next GF */
+    int frames_till_gf_update_due;
+
+    /* GF interval chosen when we coded the last GF */
+    int current_gf_interval;
+
+    /* Total bits overspent becasue of GF boost (cumulative) */
+    int gf_overspend_bits;
+
+    /* Used in the few frames following a GF to recover the extra bits
+     * spent in that GF
+     */
+    int non_gf_bitrate_adjustment;
+
+    /* Extra bits spent on key frames that need to be recovered */
+    int kf_overspend_bits;
+
+    /* Current number of bit s to try and recover on each inter frame. */
+    int kf_bitrate_adjustment;
+    int max_gf_interval;
+    int baseline_gf_interval;
+    int active_arnr_frames;
+
+    int64_t key_frame_count;
+    int prior_key_frame_distance[KEY_FRAME_CONTEXT];
+    /* Current section per frame bandwidth target */
+    int per_frame_bandwidth;
+    /* Average frame size target for clip */
+    int av_per_frame_bandwidth;
+    /* Minimum allocation that should be used for any frame */
+    int min_frame_bandwidth;
+    int inter_frame_target;
+    double output_framerate;
+    int64_t last_time_stamp_seen;
+    int64_t last_end_time_stamp_seen;
+    int64_t first_time_stamp_ever;
+
+    int ni_av_qi;
+    int ni_tot_qi;
+    int ni_frames;
+    int avg_frame_qindex;
+
+    int64_t total_byte_count;
+
+    int buffered_mode;
+
+    double framerate;
+    double ref_framerate;
+    int64_t buffer_level;
+    int64_t bits_off_target;
+
+    int rolling_target_bits;
+    int rolling_actual_bits;
+
+    int long_rolling_target_bits;
+    int long_rolling_actual_bits;
+
+    int64_t total_actual_bits;
+    int total_target_vs_actual; /* debug stats */
+
+    int worst_quality;
+    int active_worst_quality;
+    int best_quality;
+    int active_best_quality;
+
+    int cq_target_quality;
+
+    int drop_frames_allowed; /* Are we permitted to drop frames? */
+    int drop_frame;          /* Drop this frame? */
+
+    vp8_prob frame_coef_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
+    char update_probs [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES];
+
+    unsigned int frame_branch_ct [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES][2];
+
+    int gfu_boost;
+    int kf_boost;
+    int last_boost;
+
+    int target_bandwidth;
+    struct vpx_codec_pkt_list  *output_pkt_list;
+
+#if 0
+    /* Experimental code for lagged and one pass */
+    ONEPASS_FRAMESTATS one_pass_frame_stats[MAX_LAG_BUFFERS];
+    int one_pass_frame_index;
+#endif
+
+    int decimation_factor;
+    int decimation_count;
+
+    /* for real time encoding */
+    int avg_encode_time;     /* microsecond */
+    int avg_pick_mode_time;  /* microsecond */
+    int Speed;
+    int compressor_speed;
+
+    int auto_gold;
+    int auto_adjust_gold_quantizer;
+    int auto_worst_q;
+    int cpu_used;
+    int pass;
+
+
+    int prob_intra_coded;
+    int prob_last_coded;
+    int prob_gf_coded;
+    int prob_skip_false;
+    int last_skip_false_probs[3];
+    int last_skip_probs_q[3];
+    int recent_ref_frame_usage[MAX_REF_FRAMES];
+
+    int this_frame_percent_intra;
+    int last_frame_percent_intra;
+
+    int ref_frame_flags;
+
+    SPEED_FEATURES sf;
+
+    /* Count ZEROMV on all reference frames. */
+    int zeromv_count;
+    int lf_zeromv_pct;
+
+    unsigned char *segmentation_map;
+    signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS];
+    int  segment_encode_breakout[MAX_MB_SEGMENTS];
+
+    unsigned char *active_map;
+    unsigned int active_map_enabled;
+
+    /* Video conferencing cyclic refresh mode flags. This is a mode
+     * designed to clean up the background over time in live encoding
+     * scenarious. It uses segmentation.
+     */
+    int cyclic_refresh_mode_enabled;
+    int cyclic_refresh_mode_max_mbs_perframe;
+    int cyclic_refresh_mode_index;
+    int cyclic_refresh_q;
+    signed char *cyclic_refresh_map;
+    // Count on how many (consecutive) times a macroblock uses ZER0MV_LAST.
+    unsigned char *consec_zero_last;
+    // Counter that is reset when a block is checked for a mode-bias against
+    // ZEROMV_LASTREF.
+    unsigned char *consec_zero_last_mvbias;
+
+    // Frame counter for the temporal pattern. Counter is rest when the temporal
+    // layers are changed dynamically (run-time change).
+    unsigned int temporal_pattern_counter;
+    // Temporal layer id.
+    int temporal_layer_id;
+
+    // Measure of average squared difference between source and denoised signal.
+    int mse_source_denoised;
+
+    int force_maxqp;
+
+#if CONFIG_MULTITHREAD
+    /* multithread data */
+    int * mt_current_mb_col;
+    int mt_sync_range;
+    int b_multi_threaded;
+    int encoding_thread_count;
+    int b_lpf_running;
+
+    pthread_t *h_encoding_thread;
+    pthread_t h_filter_thread;
+
+    MB_ROW_COMP *mb_row_ei;
+    ENCODETHREAD_DATA *en_thread_data;
+    LPFTHREAD_DATA lpf_thread_data;
+
+    /* events */
+    sem_t *h_event_start_encoding;
+    sem_t h_event_end_encoding;
+    sem_t h_event_start_lpf;
+    sem_t h_event_end_lpf;
+#endif
+
+    TOKENLIST *tplist;
+    unsigned int partition_sz[MAX_PARTITIONS];
+    unsigned char *partition_d[MAX_PARTITIONS];
+    unsigned char *partition_d_end[MAX_PARTITIONS];
+
+
+    fractional_mv_step_fp *find_fractional_mv_step;
+    vp8_full_search_fn_t full_search_sad;
+    vp8_refining_search_fn_t refining_search_sad;
+    vp8_diamond_search_fn_t diamond_search_sad;
+    vp8_variance_fn_ptr_t fn_ptr[BLOCK_MAX_SEGMENTS];
+    uint64_t time_receive_data;
+    uint64_t time_compress_data;
+    uint64_t time_pick_lpf;
+    uint64_t time_encode_mb_row;
+
+    int base_skip_false_prob[128];
+
+    FRAME_CONTEXT lfc_n; /* last frame entropy */
+    FRAME_CONTEXT lfc_a; /* last alt ref entropy */
+    FRAME_CONTEXT lfc_g; /* last gold ref entropy */
+
+
+    struct twopass_rc
+    {
+        unsigned int section_intra_rating;
+        double section_max_qfactor;
+        unsigned int next_iiratio;
+        unsigned int this_iiratio;
+        FIRSTPASS_STATS total_stats;
+        FIRSTPASS_STATS this_frame_stats;
+        FIRSTPASS_STATS *stats_in, *stats_in_end, *stats_in_start;
+        FIRSTPASS_STATS total_left_stats;
+        int first_pass_done;
+        int64_t bits_left;
+        int64_t clip_bits_total;
+        double avg_iiratio;
+        double modified_error_total;
+        double modified_error_used;
+        double modified_error_left;
+        double kf_intra_err_min;
+        double gf_intra_err_min;
+        int frames_to_key;
+        int maxq_max_limit;
+        int maxq_min_limit;
+        int gf_decay_rate;
+        int static_scene_max_gf_interval;
+        int kf_bits;
+        /* Remaining error from uncoded frames in a gf group. */
+        int gf_group_error_left;
+        /* Projected total bits available for a key frame group of frames */
+        int64_t kf_group_bits;
+        /* Error score of frames still to be coded in kf group */
+        int64_t kf_group_error_left;
+        /* Projected Bits available for a group including 1 GF or ARF */
+        int64_t gf_group_bits;
+        /* Bits for the golden frame or ARF */
+        int gf_bits;
+        int alt_extra_bits;
+        double est_max_qcorrection_factor;
+    } twopass;
+
+#if VP8_TEMPORAL_ALT_REF
+    YV12_BUFFER_CONFIG alt_ref_buffer;
+    YV12_BUFFER_CONFIG *frames[MAX_LAG_BUFFERS];
+    int fixed_divide[512];
+#endif
+
+#if CONFIG_INTERNAL_STATS
+    int    count;
+    double total_y;
+    double total_u;
+    double total_v;
+    double total ;
+    double total_sq_error;
+    double totalp_y;
+    double totalp_u;
+    double totalp_v;
+    double totalp;
+    double total_sq_error2;
+    int    bytes;
+    double summed_quality;
+    double summed_weights;
+    unsigned int tot_recode_hits;
+
+
+    double total_ssimg_y;
+    double total_ssimg_u;
+    double total_ssimg_v;
+    double total_ssimg_all;
+
+    int b_calculate_ssimg;
+#endif
+    int b_calculate_psnr;
+
+    /* Per MB activity measurement */
+    unsigned int activity_avg;
+    unsigned int * mb_activity_map;
+
+    /* Record of which MBs still refer to last golden frame either
+     * directly or through 0,0
+     */
+    unsigned char *gf_active_flags;
+    int gf_active_count;
+
+    int output_partition;
+
+    /* Store last frame's MV info for next frame MV prediction */
+    int_mv *lfmv;
+    int *lf_ref_frame_sign_bias;
+    int *lf_ref_frame;
+
+    /* force next frame to intra when kf_auto says so */
+    int force_next_frame_intra;
+
+    int droppable;
+
+    int initial_width;
+    int initial_height;
+
+#if CONFIG_TEMPORAL_DENOISING
+    VP8_DENOISER denoiser;
+#endif
+
+    /* Coding layer state variables */
+    unsigned int current_layer;
+    LAYER_CONTEXT layer_context[VPX_TS_MAX_LAYERS];
+
+    int64_t frames_in_layer[VPX_TS_MAX_LAYERS];
+    int64_t bytes_in_layer[VPX_TS_MAX_LAYERS];
+    double sum_psnr[VPX_TS_MAX_LAYERS];
+    double sum_psnr_p[VPX_TS_MAX_LAYERS];
+    double total_error2[VPX_TS_MAX_LAYERS];
+    double total_error2_p[VPX_TS_MAX_LAYERS];
+    double sum_ssim[VPX_TS_MAX_LAYERS];
+    double sum_weights[VPX_TS_MAX_LAYERS];
+
+    double total_ssimg_y_in_layer[VPX_TS_MAX_LAYERS];
+    double total_ssimg_u_in_layer[VPX_TS_MAX_LAYERS];
+    double total_ssimg_v_in_layer[VPX_TS_MAX_LAYERS];
+    double total_ssimg_all_in_layer[VPX_TS_MAX_LAYERS];
+
+#if CONFIG_MULTI_RES_ENCODING
+    /* Number of MBs per row at lower-resolution level */
+    int    mr_low_res_mb_cols;
+    /* Indicate if lower-res mv info is available */
+    unsigned char  mr_low_res_mv_avail;
+#endif
+    /* The frame number of each reference frames */
+    unsigned int current_ref_frames[MAX_REF_FRAMES];
+    // Closest reference frame to current frame.
+    MV_REFERENCE_FRAME closest_reference_frame;
+
+    struct rd_costs_struct
+    {
+        int mvcosts[2][MVvals+1];
+        int mvsadcosts[2][MVfpvals+1];
+        int mbmode_cost[2][MB_MODE_COUNT];
+        int intra_uv_mode_cost[2][MB_MODE_COUNT];
+        int bmode_costs[10][10][10];
+        int inter_bmode_costs[B_MODE_COUNT];
+        int token_costs[BLOCK_TYPES][COEF_BANDS]
+        [PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS];
+    } rd_costs;
+} VP8_COMP;
+
+void vp8_alloc_compressor_data(VP8_COMP *cpi);
+int vp8_reverse_trans(int x);
+void vp8_new_framerate(VP8_COMP *cpi, double framerate);
+void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm);
+
+void vp8_pack_bitstream(VP8_COMP *cpi, unsigned char *dest,
+                        unsigned char *dest_end, unsigned long *size);
+
+void vp8_tokenize_mb(VP8_COMP *, MACROBLOCK *, TOKENEXTRA **);
+
+void vp8_set_speed_features(VP8_COMP *cpi);
+
+#if CONFIG_DEBUG
+#define CHECK_MEM_ERROR(lval,expr) do {\
+        lval = (expr); \
+        if(!lval) \
+            vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
+                               "Failed to allocate "#lval" at %s:%d", \
+                               __FILE__,__LINE__);\
+    } while(0)
+#else
+#define CHECK_MEM_ERROR(lval,expr) do {\
+        lval = (expr); \
+        if(!lval) \
+            vpx_internal_error(&cpi->common.error, VPX_CODEC_MEM_ERROR,\
+                               "Failed to allocate "#lval);\
+    } while(0)
+#endif
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_ONYX_INT_H_
diff --git a/media/libvpx/vp8/encoder/pickinter.c b/media/libvpx/vp8/encoder/pickinter.c
new file mode 100644
index 000000000..053bf119a
--- /dev/null
+++ b/media/libvpx/vp8/encoder/pickinter.c
@@ -0,0 +1,1548 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <limits.h>
+#include "vpx_config.h"
+#include "./vpx_dsp_rtcd.h"
+#include "onyx_int.h"
+#include "modecosts.h"
+#include "encodeintra.h"
+#include "vp8/common/common.h"
+#include "vp8/common/entropymode.h"
+#include "pickinter.h"
+#include "vp8/common/findnearmv.h"
+#include "encodemb.h"
+#include "vp8/common/reconinter.h"
+#include "vp8/common/reconintra4x4.h"
+#include "vp8/common/variance.h"
+#include "mcomp.h"
+#include "rdopt.h"
+#include "vpx_mem/vpx_mem.h"
+#if CONFIG_TEMPORAL_DENOISING
+#include "denoising.h"
+#endif
+
+#ifdef SPEEDSTATS
+extern unsigned int cnt_pm;
+#endif
+
+extern const int vp8_ref_frame_order[MAX_MODES];
+extern const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES];
+
+// Fixed point implementation of a skin color classifier. Skin color
+// is model by a Gaussian distribution in the CbCr color space.
+// See ../../test/skin_color_detector_test.cc where the reference
+// skin color classifier is defined.
+
+// Fixed-point skin color model parameters.
+static const int skin_mean[2] = {7463, 9614};                 // q6
+static const int skin_inv_cov[4] = {4107, 1663, 1663, 2157};  // q16
+static const int skin_threshold = 1570636;                    // q18
+
+// Evaluates the Mahalanobis distance measure for the input CbCr values.
+static int evaluate_skin_color_difference(int cb, int cr)
+{
+  const int cb_q6 = cb << 6;
+  const int cr_q6 = cr << 6;
+  const int cb_diff_q12 = (cb_q6 - skin_mean[0]) * (cb_q6 - skin_mean[0]);
+  const int cbcr_diff_q12 = (cb_q6 - skin_mean[0]) * (cr_q6 - skin_mean[1]);
+  const int cr_diff_q12 = (cr_q6 - skin_mean[1]) * (cr_q6 - skin_mean[1]);
+  const int cb_diff_q2 = (cb_diff_q12 + (1 << 9)) >> 10;
+  const int cbcr_diff_q2 = (cbcr_diff_q12 + (1 << 9)) >> 10;
+  const int cr_diff_q2 = (cr_diff_q12 + (1 << 9)) >> 10;
+  const int skin_diff = skin_inv_cov[0] * cb_diff_q2 +
+      skin_inv_cov[1] * cbcr_diff_q2 +
+      skin_inv_cov[2] * cbcr_diff_q2 +
+      skin_inv_cov[3] * cr_diff_q2;
+  return skin_diff;
+}
+
+static int macroblock_corner_grad(unsigned char* signal, int stride,
+                                  int offsetx, int offsety, int sgnx, int sgny)
+{
+  int y1 = signal[offsetx * stride + offsety];
+  int y2 = signal[offsetx * stride + offsety + sgny];
+  int y3 = signal[(offsetx + sgnx) * stride + offsety];
+  int y4 = signal[(offsetx + sgnx) * stride + offsety + sgny];
+  return MAX(MAX(abs(y1 - y2), abs(y1 - y3)), abs(y1 - y4));
+}
+
+static int check_dot_artifact_candidate(VP8_COMP *cpi,
+                                        MACROBLOCK *x,
+                                        unsigned char *target_last,
+                                        int stride,
+                                        unsigned char* last_ref,
+                                        int mb_row,
+                                        int mb_col,
+                                        int channel)
+{
+  int threshold1 = 6;
+  int threshold2 = 3;
+  unsigned int max_num = (cpi->common.MBs) / 10;
+  int grad_last = 0;
+  int grad_source = 0;
+  int index = mb_row * cpi->common.mb_cols + mb_col;
+  // Threshold for #consecutive (base layer) frames using zero_last mode.
+  int num_frames = 30;
+  int shift = 15;
+  if (channel > 0) {
+    shift = 7;
+  }
+  if (cpi->oxcf.number_of_layers > 1)
+  {
+    num_frames = 20;
+  }
+  x->zero_last_dot_suppress = 0;
+  // Blocks on base layer frames that have been using ZEROMV_LAST repeatedly
+  // (i.e, at least |x| consecutive frames are candidates for increasing the
+  // rd adjustment for zero_last mode.
+  // Only allow this for at most |max_num| blocks per frame.
+  // Don't allow this for screen content input.
+  if (cpi->current_layer == 0 &&
+      cpi->consec_zero_last_mvbias[index] > num_frames &&
+      x->mbs_zero_last_dot_suppress < max_num &&
+      !cpi->oxcf.screen_content_mode)
+  {
+    // If this block is checked here, label it so we don't check it again until
+    // ~|x| framaes later.
+    x->zero_last_dot_suppress = 1;
+    // Dot artifact is noticeable as strong gradient at corners of macroblock,
+    // for flat areas. As a simple detector for now, we look for a high
+    // corner gradient on last ref, and a smaller gradient on source.
+    // Check 4 corners, return if any satisfy condition.
+    // Top-left:
+    grad_last = macroblock_corner_grad(last_ref, stride, 0, 0, 1, 1);
+    grad_source = macroblock_corner_grad(target_last, stride, 0, 0, 1, 1);
+    if (grad_last >= threshold1 && grad_source <= threshold2)
+    {
+       x->mbs_zero_last_dot_suppress++;
+       return 1;
+    }
+    // Top-right:
+    grad_last = macroblock_corner_grad(last_ref, stride, 0, shift, 1, -1);
+    grad_source = macroblock_corner_grad(target_last, stride, 0, shift, 1, -1);
+    if (grad_last >= threshold1 && grad_source <= threshold2)
+    {
+      x->mbs_zero_last_dot_suppress++;
+      return 1;
+    }
+    // Bottom-left:
+    grad_last = macroblock_corner_grad(last_ref, stride, shift, 0, -1, 1);
+    grad_source = macroblock_corner_grad(target_last, stride, shift, 0, -1, 1);
+    if (grad_last >= threshold1 && grad_source <= threshold2)
+    {
+      x->mbs_zero_last_dot_suppress++;
+      return 1;
+    }
+    // Bottom-right:
+    grad_last = macroblock_corner_grad(last_ref, stride, shift, shift, -1, -1);
+    grad_source = macroblock_corner_grad(target_last, stride, shift, shift, -1, -1);
+    if (grad_last >= threshold1 && grad_source <= threshold2)
+    {
+      x->mbs_zero_last_dot_suppress++;
+      return 1;
+    }
+    return 0;
+  }
+  return 0;
+}
+
+// Checks if the input yCbCr values corresponds to skin color.
+static int is_skin_color(int y, int cb, int cr)
+{
+  if (y < 40 || y > 220)
+  {
+    return 0;
+  }
+  return (evaluate_skin_color_difference(cb, cr) < skin_threshold);
+}
+
+int vp8_skip_fractional_mv_step(MACROBLOCK *mb, BLOCK *b, BLOCKD *d,
+                                int_mv *bestmv, int_mv *ref_mv,
+                                int error_per_bit,
+                                const vp8_variance_fn_ptr_t *vfp,
+                                int *mvcost[2], int *distortion,
+                                unsigned int *sse)
+{
+    (void) b;
+    (void) d;
+    (void) ref_mv;
+    (void) error_per_bit;
+    (void) vfp;
+    (void) mb;
+    (void) mvcost;
+    (void) distortion;
+    (void) sse;
+    bestmv->as_mv.row <<= 3;
+    bestmv->as_mv.col <<= 3;
+    return 0;
+}
+
+
+int vp8_get_inter_mbpred_error(MACROBLOCK *mb,
+                                  const vp8_variance_fn_ptr_t *vfp,
+                                  unsigned int *sse,
+                                  int_mv this_mv)
+{
+
+    BLOCK *b = &mb->block[0];
+    BLOCKD *d = &mb->e_mbd.block[0];
+    unsigned char *what = (*(b->base_src) + b->src);
+    int what_stride = b->src_stride;
+    int pre_stride = mb->e_mbd.pre.y_stride;
+    unsigned char *in_what = mb->e_mbd.pre.y_buffer + d->offset ;
+    int in_what_stride = pre_stride;
+    int xoffset = this_mv.as_mv.col & 7;
+    int yoffset = this_mv.as_mv.row & 7;
+
+    in_what += (this_mv.as_mv.row >> 3) * pre_stride + (this_mv.as_mv.col >> 3);
+
+    if (xoffset | yoffset)
+    {
+        return vfp->svf(in_what, in_what_stride, xoffset, yoffset, what, what_stride, sse);
+    }
+    else
+    {
+        return vfp->vf(what, what_stride, in_what, in_what_stride, sse);
+    }
+
+}
+
+static int get_prediction_error(BLOCK *be, BLOCKD *b)
+{
+    unsigned char *sptr;
+    unsigned char *dptr;
+    sptr = (*(be->base_src) + be->src);
+    dptr = b->predictor;
+
+    return vpx_get4x4sse_cs(sptr, be->src_stride, dptr, 16);
+
+}
+
+static int pick_intra4x4block(
+    MACROBLOCK *x,
+    int ib,
+    B_PREDICTION_MODE *best_mode,
+    const int *mode_costs,
+
+    int *bestrate,
+    int *bestdistortion)
+{
+
+    BLOCKD *b = &x->e_mbd.block[ib];
+    BLOCK *be = &x->block[ib];
+    int dst_stride = x->e_mbd.dst.y_stride;
+    unsigned char *dst = x->e_mbd.dst.y_buffer + b->offset;
+    B_PREDICTION_MODE mode;
+    int best_rd = INT_MAX;
+    int rate;
+    int distortion;
+
+    unsigned char *Above = dst - dst_stride;
+    unsigned char *yleft = dst - 1;
+    unsigned char top_left = Above[-1];
+
+    for (mode = B_DC_PRED; mode <= B_HE_PRED; mode++)
+    {
+        int this_rd;
+
+        rate = mode_costs[mode];
+
+        vp8_intra4x4_predict(Above, yleft, dst_stride, mode,
+                             b->predictor, 16, top_left);
+        distortion = get_prediction_error(be, b);
+        this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
+
+        if (this_rd < best_rd)
+        {
+            *bestrate = rate;
+            *bestdistortion = distortion;
+            best_rd = this_rd;
+            *best_mode = mode;
+        }
+    }
+
+    b->bmi.as_mode = *best_mode;
+    vp8_encode_intra4x4block(x, ib);
+    return best_rd;
+}
+
+
+static int pick_intra4x4mby_modes
+(
+    MACROBLOCK *mb,
+    int *Rate,
+    int *best_dist
+)
+{
+    MACROBLOCKD *const xd = &mb->e_mbd;
+    int i;
+    int cost = mb->mbmode_cost [xd->frame_type] [B_PRED];
+    int error;
+    int distortion = 0;
+    const int *bmode_costs;
+
+    intra_prediction_down_copy(xd, xd->dst.y_buffer - xd->dst.y_stride + 16);
+
+    bmode_costs = mb->inter_bmode_costs;
+
+    for (i = 0; i < 16; i++)
+    {
+        MODE_INFO *const mic = xd->mode_info_context;
+        const int mis = xd->mode_info_stride;
+
+        B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
+        int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(d);
+
+        if (mb->e_mbd.frame_type == KEY_FRAME)
+        {
+            const B_PREDICTION_MODE A = above_block_mode(mic, i, mis);
+            const B_PREDICTION_MODE L = left_block_mode(mic, i);
+
+            bmode_costs  = mb->bmode_costs[A][L];
+        }
+
+
+        pick_intra4x4block(mb, i, &best_mode, bmode_costs, &r, &d);
+
+        cost += r;
+        distortion += d;
+        mic->bmi[i].as_mode = best_mode;
+
+        /* Break out case where we have already exceeded best so far value
+         * that was passed in
+         */
+        if (distortion > *best_dist)
+            break;
+    }
+
+    *Rate = cost;
+
+    if (i == 16)
+    {
+        *best_dist = distortion;
+        error = RDCOST(mb->rdmult, mb->rddiv, cost, distortion);
+    }
+    else
+    {
+        *best_dist = INT_MAX;
+        error = INT_MAX;
+    }
+
+    return error;
+}
+
+static void pick_intra_mbuv_mode(MACROBLOCK *mb)
+{
+
+    MACROBLOCKD *x = &mb->e_mbd;
+    unsigned char *uabove_row = x->dst.u_buffer - x->dst.uv_stride;
+    unsigned char *vabove_row = x->dst.v_buffer - x->dst.uv_stride;
+    unsigned char *usrc_ptr = (mb->block[16].src + *mb->block[16].base_src);
+    unsigned char *vsrc_ptr = (mb->block[20].src + *mb->block[20].base_src);
+    int uvsrc_stride = mb->block[16].src_stride;
+    unsigned char uleft_col[8];
+    unsigned char vleft_col[8];
+    unsigned char utop_left = uabove_row[-1];
+    unsigned char vtop_left = vabove_row[-1];
+    int i, j;
+    int expected_udc;
+    int expected_vdc;
+    int shift;
+    int Uaverage = 0;
+    int Vaverage = 0;
+    int diff;
+    int pred_error[4] = {0, 0, 0, 0}, best_error = INT_MAX;
+    MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
+
+
+    for (i = 0; i < 8; i++)
+    {
+        uleft_col[i] = x->dst.u_buffer [i* x->dst.uv_stride -1];
+        vleft_col[i] = x->dst.v_buffer [i* x->dst.uv_stride -1];
+    }
+
+    if (!x->up_available && !x->left_available)
+    {
+        expected_udc = 128;
+        expected_vdc = 128;
+    }
+    else
+    {
+        shift = 2;
+
+        if (x->up_available)
+        {
+
+            for (i = 0; i < 8; i++)
+            {
+                Uaverage += uabove_row[i];
+                Vaverage += vabove_row[i];
+            }
+
+            shift ++;
+
+        }
+
+        if (x->left_available)
+        {
+            for (i = 0; i < 8; i++)
+            {
+                Uaverage += uleft_col[i];
+                Vaverage += vleft_col[i];
+            }
+
+            shift ++;
+
+        }
+
+        expected_udc = (Uaverage + (1 << (shift - 1))) >> shift;
+        expected_vdc = (Vaverage + (1 << (shift - 1))) >> shift;
+    }
+
+
+    for (i = 0; i < 8; i++)
+    {
+        for (j = 0; j < 8; j++)
+        {
+
+            int predu = uleft_col[i] + uabove_row[j] - utop_left;
+            int predv = vleft_col[i] + vabove_row[j] - vtop_left;
+            int u_p, v_p;
+
+            u_p = usrc_ptr[j];
+            v_p = vsrc_ptr[j];
+
+            if (predu < 0)
+                predu = 0;
+
+            if (predu > 255)
+                predu = 255;
+
+            if (predv < 0)
+                predv = 0;
+
+            if (predv > 255)
+                predv = 255;
+
+
+            diff = u_p - expected_udc;
+            pred_error[DC_PRED] += diff * diff;
+            diff = v_p - expected_vdc;
+            pred_error[DC_PRED] += diff * diff;
+
+
+            diff = u_p - uabove_row[j];
+            pred_error[V_PRED] += diff * diff;
+            diff = v_p - vabove_row[j];
+            pred_error[V_PRED] += diff * diff;
+
+
+            diff = u_p - uleft_col[i];
+            pred_error[H_PRED] += diff * diff;
+            diff = v_p - vleft_col[i];
+            pred_error[H_PRED] += diff * diff;
+
+
+            diff = u_p - predu;
+            pred_error[TM_PRED] += diff * diff;
+            diff = v_p - predv;
+            pred_error[TM_PRED] += diff * diff;
+
+
+        }
+
+        usrc_ptr += uvsrc_stride;
+        vsrc_ptr += uvsrc_stride;
+
+        if (i == 3)
+        {
+            usrc_ptr = (mb->block[18].src + *mb->block[18].base_src);
+            vsrc_ptr = (mb->block[22].src + *mb->block[22].base_src);
+        }
+
+
+
+    }
+
+
+    for (i = DC_PRED; i <= TM_PRED; i++)
+    {
+        if (best_error > pred_error[i])
+        {
+            best_error = pred_error[i];
+            best_mode = (MB_PREDICTION_MODE)i;
+        }
+    }
+
+
+    mb->e_mbd.mode_info_context->mbmi.uv_mode = best_mode;
+
+}
+
+static void update_mvcount(MACROBLOCK *x, int_mv *best_ref_mv)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+    /* Split MV modes currently not supported when RD is nopt enabled,
+     * therefore, only need to modify MVcount in NEWMV mode. */
+    if (xd->mode_info_context->mbmi.mode == NEWMV)
+    {
+        x->MVcount[0][mv_max+((xd->mode_info_context->mbmi.mv.as_mv.row -
+                                      best_ref_mv->as_mv.row) >> 1)]++;
+        x->MVcount[1][mv_max+((xd->mode_info_context->mbmi.mv.as_mv.col -
+                                      best_ref_mv->as_mv.col) >> 1)]++;
+    }
+}
+
+
+#if CONFIG_MULTI_RES_ENCODING
+static
+void get_lower_res_motion_info(VP8_COMP *cpi, MACROBLOCKD *xd, int *dissim,
+                               int *parent_ref_frame,
+                               MB_PREDICTION_MODE *parent_mode,
+                               int_mv *parent_ref_mv, int mb_row, int mb_col)
+{
+    LOWER_RES_MB_INFO* store_mode_info
+                          = ((LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info)->mb_info;
+    unsigned int parent_mb_index;
+
+    /* Consider different down_sampling_factor.  */
+    {
+        /* TODO: Removed the loop that supports special down_sampling_factor
+         * such as 2, 4, 8. Will revisit it if needed.
+         * Should also try using a look-up table to see if it helps
+         * performance. */
+        int parent_mb_row, parent_mb_col;
+
+        parent_mb_row = mb_row*cpi->oxcf.mr_down_sampling_factor.den
+                    /cpi->oxcf.mr_down_sampling_factor.num;
+        parent_mb_col = mb_col*cpi->oxcf.mr_down_sampling_factor.den
+                    /cpi->oxcf.mr_down_sampling_factor.num;
+        parent_mb_index = parent_mb_row*cpi->mr_low_res_mb_cols + parent_mb_col;
+    }
+
+    /* Read lower-resolution mode & motion result from memory.*/
+    *parent_ref_frame = store_mode_info[parent_mb_index].ref_frame;
+    *parent_mode =  store_mode_info[parent_mb_index].mode;
+    *dissim = store_mode_info[parent_mb_index].dissim;
+
+    /* For highest-resolution encoder, adjust dissim value. Lower its quality
+     * for good performance. */
+    if (cpi->oxcf.mr_encoder_id == (cpi->oxcf.mr_total_resolutions - 1))
+        *dissim>>=1;
+
+    if(*parent_ref_frame != INTRA_FRAME)
+    {
+        /* Consider different down_sampling_factor.
+         * The result can be rounded to be more precise, but it takes more time.
+         */
+        (*parent_ref_mv).as_mv.row = store_mode_info[parent_mb_index].mv.as_mv.row
+                                  *cpi->oxcf.mr_down_sampling_factor.num
+                                  /cpi->oxcf.mr_down_sampling_factor.den;
+        (*parent_ref_mv).as_mv.col = store_mode_info[parent_mb_index].mv.as_mv.col
+                                  *cpi->oxcf.mr_down_sampling_factor.num
+                                  /cpi->oxcf.mr_down_sampling_factor.den;
+
+        vp8_clamp_mv2(parent_ref_mv, xd);
+    }
+}
+#endif
+
+static void check_for_encode_breakout(unsigned int sse, MACROBLOCK* x)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+
+    unsigned int threshold = (xd->block[0].dequant[1]
+        * xd->block[0].dequant[1] >>4);
+
+    if(threshold < x->encode_breakout)
+        threshold = x->encode_breakout;
+
+    if (sse < threshold )
+    {
+        /* Check u and v to make sure skip is ok */
+        unsigned int sse2 = 0;
+
+        sse2 = VP8_UVSSE(x);
+
+        if (sse2 * 2 < x->encode_breakout)
+            x->skip = 1;
+        else
+            x->skip = 0;
+    }
+}
+
+static int evaluate_inter_mode(unsigned int* sse, int rate2, int* distortion2,
+                               VP8_COMP *cpi, MACROBLOCK *x, int rd_adj)
+{
+    MB_PREDICTION_MODE this_mode = x->e_mbd.mode_info_context->mbmi.mode;
+    int_mv mv = x->e_mbd.mode_info_context->mbmi.mv;
+    int this_rd;
+    int denoise_aggressive = 0;
+    /* Exit early and don't compute the distortion if this macroblock
+     * is marked inactive. */
+    if (cpi->active_map_enabled && x->active_ptr[0] == 0)
+    {
+        *sse = 0;
+        *distortion2 = 0;
+        x->skip = 1;
+        return INT_MAX;
+    }
+
+    if((this_mode != NEWMV) ||
+        !(cpi->sf.half_pixel_search) || cpi->common.full_pixel==1)
+        *distortion2 = vp8_get_inter_mbpred_error(x,
+                                              &cpi->fn_ptr[BLOCK_16X16],
+                                              sse, mv);
+
+    this_rd = RDCOST(x->rdmult, x->rddiv, rate2, *distortion2);
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity > 0) {
+      denoise_aggressive =
+        (cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive) ? 1 : 0;
+    }
+#endif
+
+    // Adjust rd for ZEROMV and LAST, if LAST is the closest reference frame.
+    // TODO: We should also add condition on distance of closest to current.
+    if(!cpi->oxcf.screen_content_mode &&
+       this_mode == ZEROMV &&
+       x->e_mbd.mode_info_context->mbmi.ref_frame == LAST_FRAME &&
+       (denoise_aggressive || (cpi->closest_reference_frame == LAST_FRAME)))
+    {
+        // No adjustment if block is considered to be skin area.
+        if(x->is_skin)
+            rd_adj = 100;
+
+        this_rd = ((int64_t)this_rd) * rd_adj / 100;
+    }
+
+    check_for_encode_breakout(*sse, x);
+    return this_rd;
+}
+
+static void calculate_zeromv_rd_adjustment(VP8_COMP *cpi, MACROBLOCK *x,
+                                    int *rd_adjustment)
+{
+    MODE_INFO *mic = x->e_mbd.mode_info_context;
+    int_mv mv_l, mv_a, mv_al;
+    int local_motion_check = 0;
+
+    if (cpi->lf_zeromv_pct > 40)
+    {
+        /* left mb */
+        mic -= 1;
+        mv_l = mic->mbmi.mv;
+
+        if (mic->mbmi.ref_frame != INTRA_FRAME)
+            if( abs(mv_l.as_mv.row) < 8 && abs(mv_l.as_mv.col) < 8)
+                local_motion_check++;
+
+        /* above-left mb */
+        mic -= x->e_mbd.mode_info_stride;
+        mv_al = mic->mbmi.mv;
+
+        if (mic->mbmi.ref_frame != INTRA_FRAME)
+            if( abs(mv_al.as_mv.row) < 8 && abs(mv_al.as_mv.col) < 8)
+                local_motion_check++;
+
+        /* above mb */
+        mic += 1;
+        mv_a = mic->mbmi.mv;
+
+        if (mic->mbmi.ref_frame != INTRA_FRAME)
+            if( abs(mv_a.as_mv.row) < 8 && abs(mv_a.as_mv.col) < 8)
+                local_motion_check++;
+
+        if (((!x->e_mbd.mb_to_top_edge || !x->e_mbd.mb_to_left_edge)
+            && local_motion_check >0) ||  local_motion_check >2 )
+            *rd_adjustment = 80;
+        else if (local_motion_check > 0)
+            *rd_adjustment = 90;
+    }
+}
+
+void vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset,
+                         int recon_uvoffset, int *returnrate,
+                         int *returndistortion, int *returnintra, int mb_row,
+                         int mb_col)
+{
+    BLOCK *b = &x->block[0];
+    BLOCKD *d = &x->e_mbd.block[0];
+    MACROBLOCKD *xd = &x->e_mbd;
+    MB_MODE_INFO best_mbmode;
+
+    int_mv best_ref_mv_sb[2];
+    int_mv mode_mv_sb[2][MB_MODE_COUNT];
+    int_mv best_ref_mv;
+    int_mv *mode_mv;
+    MB_PREDICTION_MODE this_mode;
+    int num00;
+    int mdcounts[4];
+    int best_rd = INT_MAX;
+    int rd_adjustment = 100;
+    int best_intra_rd = INT_MAX;
+    int mode_index;
+    int rate;
+    int rate2;
+    int distortion2;
+    int bestsme = INT_MAX;
+    int best_mode_index = 0;
+    unsigned int sse = UINT_MAX, best_rd_sse = UINT_MAX;
+#if CONFIG_TEMPORAL_DENOISING
+    unsigned int zero_mv_sse = UINT_MAX, best_sse = UINT_MAX;
+#endif
+
+    int sf_improved_mv_pred = cpi->sf.improved_mv_pred;
+
+#if CONFIG_MULTI_RES_ENCODING
+    int dissim = INT_MAX;
+    int parent_ref_frame = 0;
+    int_mv parent_ref_mv;
+    MB_PREDICTION_MODE parent_mode = 0;
+    int parent_ref_valid = 0;
+#endif
+
+    int_mv mvp;
+
+    int near_sadidx[8] = {0, 1, 2, 3, 4, 5, 6, 7};
+    int saddone=0;
+    /* search range got from mv_pred(). It uses step_param levels. (0-7) */
+    int sr=0;
+
+    unsigned char *plane[4][3];
+    int ref_frame_map[4];
+    int sign_bias = 0;
+    int dot_artifact_candidate = 0;
+    get_predictor_pointers(cpi, plane, recon_yoffset, recon_uvoffset);
+
+    // If the current frame is using LAST as a reference, check for
+    // biasing the mode selection for dot artifacts.
+    if (cpi->ref_frame_flags & VP8_LAST_FRAME) {
+      unsigned char* target_y = x->src.y_buffer;
+      unsigned char* target_u = x->block[16].src + *x->block[16].base_src;
+      unsigned char* target_v = x->block[20].src + *x->block[20].base_src;
+      int stride = x->src.y_stride;
+      int stride_uv = x->block[16].src_stride;
+#if CONFIG_TEMPORAL_DENOISING
+      if (cpi->oxcf.noise_sensitivity) {
+        const int uv_denoise = (cpi->oxcf.noise_sensitivity >= 2) ? 1 : 0;
+        target_y =
+            cpi->denoiser.yv12_running_avg[LAST_FRAME].y_buffer + recon_yoffset;
+        stride = cpi->denoiser.yv12_running_avg[LAST_FRAME].y_stride;
+        if (uv_denoise) {
+          target_u =
+              cpi->denoiser.yv12_running_avg[LAST_FRAME].u_buffer +
+                  recon_uvoffset;
+          target_v =
+              cpi->denoiser.yv12_running_avg[LAST_FRAME].v_buffer +
+                  recon_uvoffset;
+          stride_uv = cpi->denoiser.yv12_running_avg[LAST_FRAME].uv_stride;
+        }
+      }
+#endif
+      dot_artifact_candidate =
+          check_dot_artifact_candidate(cpi, x, target_y, stride,
+              plane[LAST_FRAME][0], mb_row, mb_col, 0);
+      // If not found in Y channel, check UV channel.
+      if (!dot_artifact_candidate) {
+        dot_artifact_candidate =
+            check_dot_artifact_candidate(cpi, x, target_u, stride_uv,
+                plane[LAST_FRAME][1], mb_row, mb_col, 1);
+        if (!dot_artifact_candidate) {
+          dot_artifact_candidate =
+              check_dot_artifact_candidate(cpi, x, target_v, stride_uv,
+                  plane[LAST_FRAME][2], mb_row, mb_col, 2);
+        }
+      }
+    }
+
+#if CONFIG_MULTI_RES_ENCODING
+    // |parent_ref_valid| will be set here if potentially we can do mv resue for
+    // this higher resol (|cpi->oxcf.mr_encoder_id| > 0) frame.
+    // |parent_ref_valid| may be reset depending on |parent_ref_frame| for
+    // the current macroblock below.
+    parent_ref_valid = cpi->oxcf.mr_encoder_id && cpi->mr_low_res_mv_avail;
+    if (parent_ref_valid)
+    {
+        int parent_ref_flag;
+
+        get_lower_res_motion_info(cpi, xd, &dissim, &parent_ref_frame,
+                                  &parent_mode, &parent_ref_mv, mb_row, mb_col);
+
+        /* TODO(jkoleszar): The references available (ref_frame_flags) to the
+         * lower res encoder should match those available to this encoder, but
+         * there seems to be a situation where this mismatch can happen in the
+         * case of frame dropping and temporal layers. For example,
+         * GOLD being disallowed in ref_frame_flags, but being returned as
+         * parent_ref_frame.
+         *
+         * In this event, take the conservative approach of disabling the
+         * lower res info for this MB.
+         */
+
+        parent_ref_flag = 0;
+        // Note availability for mv reuse is only based on last and golden.
+        if (parent_ref_frame == LAST_FRAME)
+            parent_ref_flag = (cpi->ref_frame_flags & VP8_LAST_FRAME);
+        else if (parent_ref_frame == GOLDEN_FRAME)
+            parent_ref_flag = (cpi->ref_frame_flags & VP8_GOLD_FRAME);
+
+        //assert(!parent_ref_frame || parent_ref_flag);
+
+        // If |parent_ref_frame| did not match either last or golden then
+        // shut off mv reuse.
+        if (parent_ref_frame && !parent_ref_flag)
+            parent_ref_valid = 0;
+
+        // Don't do mv reuse since we want to allow for another mode besides
+        // ZEROMV_LAST to remove dot artifact.
+        if (dot_artifact_candidate)
+          parent_ref_valid = 0;
+    }
+#endif
+
+    // Check if current macroblock is in skin area.
+    {
+    const int y = x->src.y_buffer[7 * x->src.y_stride + 7];
+    const int cb = x->src.u_buffer[3 * x->src.uv_stride + 3];
+    const int cr = x->src.v_buffer[3 * x->src.uv_stride + 3];
+    x->is_skin = 0;
+    if (!cpi->oxcf.screen_content_mode)
+      x->is_skin = is_skin_color(y, cb, cr);
+    }
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity) {
+      // Under aggressive denoising mode, should we use skin map to reduce denoiser
+      // and ZEROMV bias? Will need to revisit the accuracy of this detection for
+      // very noisy input. For now keep this as is (i.e., don't turn it off). 
+      // if (cpi->denoiser.denoiser_mode == kDenoiserOnYUVAggressive)
+      //   x->is_skin = 0;
+    }
+#endif
+
+    mode_mv = mode_mv_sb[sign_bias];
+    best_ref_mv.as_int = 0;
+    memset(mode_mv_sb, 0, sizeof(mode_mv_sb));
+    memset(&best_mbmode, 0, sizeof(best_mbmode));
+
+    /* Setup search priorities */
+#if CONFIG_MULTI_RES_ENCODING
+    if (parent_ref_valid && parent_ref_frame && dissim < 8)
+    {
+        ref_frame_map[0] = -1;
+        ref_frame_map[1] = parent_ref_frame;
+        ref_frame_map[2] = -1;
+        ref_frame_map[3] = -1;
+    } else
+#endif
+    get_reference_search_order(cpi, ref_frame_map);
+
+    /* Check to see if there is at least 1 valid reference frame that we need
+     * to calculate near_mvs.
+     */
+    if (ref_frame_map[1] > 0)
+    {
+        sign_bias = vp8_find_near_mvs_bias(&x->e_mbd,
+                                           x->e_mbd.mode_info_context,
+                                           mode_mv_sb,
+                                           best_ref_mv_sb,
+                                           mdcounts,
+                                           ref_frame_map[1],
+                                           cpi->common.ref_frame_sign_bias);
+
+        mode_mv = mode_mv_sb[sign_bias];
+        best_ref_mv.as_int = best_ref_mv_sb[sign_bias].as_int;
+    }
+
+    /* Count of the number of MBs tested so far this frame */
+    x->mbs_tested_so_far++;
+
+    *returnintra = INT_MAX;
+    x->skip = 0;
+
+    x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
+
+    /* If the frame has big static background and current MB is in low
+    *  motion area, its mode decision is biased to ZEROMV mode.
+    *  No adjustment if cpu_used is <= -12 (i.e., cpi->Speed >= 12). 
+    *  At such speed settings, ZEROMV is already heavily favored.
+    */
+    if (cpi->Speed < 12) {
+      calculate_zeromv_rd_adjustment(cpi, x, &rd_adjustment);
+    }
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity) {
+      rd_adjustment = (int)(rd_adjustment *
+          cpi->denoiser.denoise_pars.pickmode_mv_bias / 100);
+    }
+#endif
+
+    if (dot_artifact_candidate)
+    {
+        // Bias against ZEROMV_LAST mode.
+        rd_adjustment = 150;
+    }
+
+
+    /* if we encode a new mv this is important
+     * find the best new motion vector
+     */
+    for (mode_index = 0; mode_index < MAX_MODES; mode_index++)
+    {
+        int frame_cost;
+        int this_rd = INT_MAX;
+        int this_ref_frame = ref_frame_map[vp8_ref_frame_order[mode_index]];
+
+        if (best_rd <= x->rd_threshes[mode_index])
+            continue;
+
+        if (this_ref_frame < 0)
+            continue;
+
+        x->e_mbd.mode_info_context->mbmi.ref_frame = this_ref_frame;
+
+        /* everything but intra */
+        if (x->e_mbd.mode_info_context->mbmi.ref_frame)
+        {
+            x->e_mbd.pre.y_buffer = plane[this_ref_frame][0];
+            x->e_mbd.pre.u_buffer = plane[this_ref_frame][1];
+            x->e_mbd.pre.v_buffer = plane[this_ref_frame][2];
+
+            if (sign_bias != cpi->common.ref_frame_sign_bias[this_ref_frame])
+            {
+                sign_bias = cpi->common.ref_frame_sign_bias[this_ref_frame];
+                mode_mv = mode_mv_sb[sign_bias];
+                best_ref_mv.as_int = best_ref_mv_sb[sign_bias].as_int;
+            }
+
+#if CONFIG_MULTI_RES_ENCODING
+            if (parent_ref_valid)
+            {
+                if (vp8_mode_order[mode_index] == NEARESTMV &&
+                    mode_mv[NEARESTMV].as_int ==0)
+                    continue;
+                if (vp8_mode_order[mode_index] == NEARMV &&
+                    mode_mv[NEARMV].as_int ==0)
+                    continue;
+
+                if (vp8_mode_order[mode_index] == NEWMV && parent_mode == ZEROMV
+                    && best_ref_mv.as_int==0)
+                    continue;
+                else if(vp8_mode_order[mode_index] == NEWMV && dissim==0
+                    && best_ref_mv.as_int==parent_ref_mv.as_int)
+                    continue;
+            }
+#endif
+        }
+
+        /* Check to see if the testing frequency for this mode is at its max
+         * If so then prevent it from being tested and increase the threshold
+         * for its testing */
+        if (x->mode_test_hit_counts[mode_index] &&
+                                         (cpi->mode_check_freq[mode_index] > 1))
+        {
+            if (x->mbs_tested_so_far <= (cpi->mode_check_freq[mode_index] *
+                                         x->mode_test_hit_counts[mode_index]))
+            {
+                /* Increase the threshold for coding this mode to make it less
+                 * likely to be chosen */
+                x->rd_thresh_mult[mode_index] += 4;
+
+                if (x->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
+                    x->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
+
+                x->rd_threshes[mode_index] =
+                                 (cpi->rd_baseline_thresh[mode_index] >> 7) *
+                                 x->rd_thresh_mult[mode_index];
+                continue;
+            }
+        }
+
+        /* We have now reached the point where we are going to test the current
+         * mode so increment the counter for the number of times it has been
+         * tested */
+        x->mode_test_hit_counts[mode_index] ++;
+
+        rate2 = 0;
+        distortion2 = 0;
+
+        this_mode = vp8_mode_order[mode_index];
+
+        x->e_mbd.mode_info_context->mbmi.mode = this_mode;
+        x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+
+        /* Work out the cost assosciated with selecting the reference frame */
+        frame_cost =
+            x->ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame];
+        rate2 += frame_cost;
+
+        /* Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
+         * unless ARNR filtering is enabled in which case we want
+         * an unfiltered alternative */
+        if (cpi->is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0))
+        {
+            if (this_mode != ZEROMV ||
+                x->e_mbd.mode_info_context->mbmi.ref_frame != ALTREF_FRAME)
+                continue;
+        }
+
+        switch (this_mode)
+        {
+        case B_PRED:
+            /* Pass best so far to pick_intra4x4mby_modes to use as breakout */
+            distortion2 = best_rd_sse;
+            pick_intra4x4mby_modes(x, &rate, &distortion2);
+
+            if (distortion2 == INT_MAX)
+            {
+                this_rd = INT_MAX;
+            }
+            else
+            {
+                rate2 += rate;
+                distortion2 = vpx_variance16x16(
+                                    *(b->base_src), b->src_stride,
+                                    x->e_mbd.predictor, 16, &sse);
+                this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
+
+                if (this_rd < best_intra_rd)
+                {
+                    best_intra_rd = this_rd;
+                    *returnintra = distortion2;
+                }
+            }
+
+            break;
+
+        case SPLITMV:
+
+            /* Split MV modes currently not supported when RD is not enabled. */
+            break;
+
+        case DC_PRED:
+        case V_PRED:
+        case H_PRED:
+        case TM_PRED:
+            vp8_build_intra_predictors_mby_s(xd,
+                                             xd->dst.y_buffer - xd->dst.y_stride,
+                                             xd->dst.y_buffer - 1,
+                                             xd->dst.y_stride,
+                                             xd->predictor,
+                                             16);
+            distortion2 = vpx_variance16x16
+                                          (*(b->base_src), b->src_stride,
+                                          x->e_mbd.predictor, 16, &sse);
+            rate2 += x->mbmode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.mode];
+            this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
+
+            if (this_rd < best_intra_rd)
+            {
+                best_intra_rd = this_rd;
+                *returnintra = distortion2;
+            }
+            break;
+
+        case NEWMV:
+        {
+            int thissme;
+            int step_param;
+            int further_steps;
+            int n = 0;
+            int sadpb = x->sadperbit16;
+            int_mv mvp_full;
+
+            int col_min = ((best_ref_mv.as_mv.col+7)>>3) - MAX_FULL_PEL_VAL;
+            int row_min = ((best_ref_mv.as_mv.row+7)>>3) - MAX_FULL_PEL_VAL;
+            int col_max = (best_ref_mv.as_mv.col>>3)
+                         + MAX_FULL_PEL_VAL;
+            int row_max = (best_ref_mv.as_mv.row>>3)
+                         + MAX_FULL_PEL_VAL;
+
+            int tmp_col_min = x->mv_col_min;
+            int tmp_col_max = x->mv_col_max;
+            int tmp_row_min = x->mv_row_min;
+            int tmp_row_max = x->mv_row_max;
+
+            int speed_adjust = (cpi->Speed > 5) ? ((cpi->Speed >= 8)? 3 : 2) : 1;
+
+            /* Further step/diamond searches as necessary */
+            step_param = cpi->sf.first_step + speed_adjust;
+
+#if CONFIG_MULTI_RES_ENCODING
+            /* If lower-res frame is not available for mv reuse (because of
+               frame dropping or different temporal layer pattern), then higher
+               resol encoder does motion search without any previous knowledge.
+               Also, since last frame motion info is not stored, then we can not
+               use improved_mv_pred. */
+            if (cpi->oxcf.mr_encoder_id)
+                sf_improved_mv_pred = 0;
+
+            // Only use parent MV as predictor if this candidate reference frame
+            // (|this_ref_frame|) is equal to |parent_ref_frame|.
+            if (parent_ref_valid && (parent_ref_frame == this_ref_frame))
+            {
+                /* Use parent MV as predictor. Adjust search range
+                 * accordingly.
+                 */
+                mvp.as_int = parent_ref_mv.as_int;
+                mvp_full.as_mv.col = parent_ref_mv.as_mv.col>>3;
+                mvp_full.as_mv.row = parent_ref_mv.as_mv.row>>3;
+
+                if(dissim <=32) step_param += 3;
+                else if(dissim <=128) step_param += 2;
+                else step_param += 1;
+            }else
+#endif
+            {
+                if(sf_improved_mv_pred)
+                {
+                    if(!saddone)
+                    {
+                        vp8_cal_sad(cpi,xd,x, recon_yoffset ,&near_sadidx[0] );
+                        saddone = 1;
+                    }
+
+                    vp8_mv_pred(cpi, &x->e_mbd, x->e_mbd.mode_info_context,
+                                &mvp,x->e_mbd.mode_info_context->mbmi.ref_frame,
+                                cpi->common.ref_frame_sign_bias, &sr,
+                                &near_sadidx[0]);
+
+                    sr += speed_adjust;
+                    /* adjust search range according to sr from mv prediction */
+                    if(sr > step_param)
+                        step_param = sr;
+
+                    mvp_full.as_mv.col = mvp.as_mv.col>>3;
+                    mvp_full.as_mv.row = mvp.as_mv.row>>3;
+                }else
+                {
+                    mvp.as_int = best_ref_mv.as_int;
+                    mvp_full.as_mv.col = best_ref_mv.as_mv.col>>3;
+                    mvp_full.as_mv.row = best_ref_mv.as_mv.row>>3;
+                }
+            }
+
+#if CONFIG_MULTI_RES_ENCODING
+            if (parent_ref_valid && (parent_ref_frame == this_ref_frame) &&
+                dissim <= 2 &&
+                MAX(abs(best_ref_mv.as_mv.row - parent_ref_mv.as_mv.row),
+                    abs(best_ref_mv.as_mv.col - parent_ref_mv.as_mv.col)) <= 4)
+            {
+                d->bmi.mv.as_int = mvp_full.as_int;
+                mode_mv[NEWMV].as_int = mvp_full.as_int;
+
+                cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv, &best_ref_mv,
+                                             x->errorperbit,
+                                             &cpi->fn_ptr[BLOCK_16X16],
+                                             cpi->mb.mvcost,
+                                             &distortion2,&sse);
+            }else
+#endif
+            {
+                /* Get intersection of UMV window and valid MV window to
+                 * reduce # of checks in diamond search. */
+                if (x->mv_col_min < col_min )
+                    x->mv_col_min = col_min;
+                if (x->mv_col_max > col_max )
+                    x->mv_col_max = col_max;
+                if (x->mv_row_min < row_min )
+                    x->mv_row_min = row_min;
+                if (x->mv_row_max > row_max )
+                    x->mv_row_max = row_max;
+
+                further_steps = (cpi->Speed >= 8)?
+                           0: (cpi->sf.max_step_search_steps - 1 - step_param);
+
+                if (cpi->sf.search_method == HEX)
+                {
+#if CONFIG_MULTI_RES_ENCODING
+                /* TODO: In higher-res pick_inter_mode, step_param is used to
+                 * modify hex search range. Here, set step_param to 0 not to
+                 * change the behavior in lowest-resolution encoder.
+                 * Will improve it later.
+                 */
+                /* Set step_param to 0 to ensure large-range motion search
+                 * when mv reuse if not valid (i.e. |parent_ref_valid| = 0),
+                 * or if this candidate reference frame (|this_ref_frame|) is
+                 * not equal to |parent_ref_frame|.
+                 */
+                if (!parent_ref_valid || (parent_ref_frame != this_ref_frame))
+                    step_param = 0;
+#endif
+                    bestsme = vp8_hex_search(x, b, d, &mvp_full, &d->bmi.mv,
+                                          step_param, sadpb,
+                                          &cpi->fn_ptr[BLOCK_16X16],
+                                          x->mvsadcost, x->mvcost, &best_ref_mv);
+                    mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+                }
+                else
+                {
+                    bestsme = cpi->diamond_search_sad(x, b, d, &mvp_full,
+                                          &d->bmi.mv, step_param, sadpb, &num00,
+                                          &cpi->fn_ptr[BLOCK_16X16],
+                                          x->mvcost, &best_ref_mv);
+                    mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+
+                    /* Further step/diamond searches as necessary */
+                    n = num00;
+                    num00 = 0;
+
+                    while (n < further_steps)
+                    {
+                        n++;
+
+                        if (num00)
+                            num00--;
+                        else
+                        {
+                            thissme =
+                            cpi->diamond_search_sad(x, b, d, &mvp_full,
+                                                    &d->bmi.mv,
+                                                    step_param + n,
+                                                    sadpb, &num00,
+                                                    &cpi->fn_ptr[BLOCK_16X16],
+                                                    x->mvcost, &best_ref_mv);
+                            if (thissme < bestsme)
+                            {
+                                bestsme = thissme;
+                                mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+                            }
+                            else
+                            {
+                                d->bmi.mv.as_int = mode_mv[NEWMV].as_int;
+                            }
+                        }
+                    }
+                }
+
+                x->mv_col_min = tmp_col_min;
+                x->mv_col_max = tmp_col_max;
+                x->mv_row_min = tmp_row_min;
+                x->mv_row_max = tmp_row_max;
+
+                if (bestsme < INT_MAX)
+                    cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv,
+                                             &best_ref_mv, x->errorperbit,
+                                             &cpi->fn_ptr[BLOCK_16X16],
+                                             cpi->mb.mvcost,
+                                             &distortion2,&sse);
+            }
+
+            mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+
+            /* mv cost; */
+            rate2 += vp8_mv_bit_cost(&mode_mv[NEWMV], &best_ref_mv,
+                                     cpi->mb.mvcost, 128);
+        }
+
+        case NEARESTMV:
+        case NEARMV:
+
+            if (mode_mv[this_mode].as_int == 0)
+                continue;
+
+        case ZEROMV:
+
+            /* Trap vectors that reach beyond the UMV borders
+             * Note that ALL New MV, Nearest MV Near MV and Zero MV code drops
+             * through to this point because of the lack of break statements
+             * in the previous two cases.
+             */
+            if (((mode_mv[this_mode].as_mv.row >> 3) < x->mv_row_min) ||
+                ((mode_mv[this_mode].as_mv.row >> 3) > x->mv_row_max) ||
+                ((mode_mv[this_mode].as_mv.col >> 3) < x->mv_col_min) ||
+                ((mode_mv[this_mode].as_mv.col >> 3) > x->mv_col_max))
+                continue;
+
+            rate2 += vp8_cost_mv_ref(this_mode, mdcounts);
+            x->e_mbd.mode_info_context->mbmi.mv.as_int =
+                                                    mode_mv[this_mode].as_int;
+            this_rd = evaluate_inter_mode(&sse, rate2, &distortion2, cpi, x,
+                                          rd_adjustment);
+
+            break;
+        default:
+            break;
+        }
+
+#if CONFIG_TEMPORAL_DENOISING
+        if (cpi->oxcf.noise_sensitivity)
+        {
+            /* Store for later use by denoiser. */
+            // Dont' denoise with GOLDEN OR ALTREF is they are old reference
+            // frames (greater than MAX_GF_ARF_DENOISE_RANGE frames in past).
+            int skip_old_reference = ((this_ref_frame != LAST_FRAME) &&
+                (cpi->common.current_video_frame -
+                 cpi->current_ref_frames[this_ref_frame] >
+                 MAX_GF_ARF_DENOISE_RANGE)) ? 1 : 0;
+            if (this_mode == ZEROMV && sse < zero_mv_sse &&
+                !skip_old_reference)
+            {
+                zero_mv_sse = sse;
+                x->best_zeromv_reference_frame =
+                        x->e_mbd.mode_info_context->mbmi.ref_frame;
+            }
+
+            // Store the best NEWMV in x for later use in the denoiser.
+            if (x->e_mbd.mode_info_context->mbmi.mode == NEWMV &&
+                sse < best_sse && !skip_old_reference)
+            {
+                best_sse = sse;
+                x->best_sse_inter_mode = NEWMV;
+                x->best_sse_mv = x->e_mbd.mode_info_context->mbmi.mv;
+                x->need_to_clamp_best_mvs =
+                    x->e_mbd.mode_info_context->mbmi.need_to_clamp_mvs;
+                x->best_reference_frame =
+                    x->e_mbd.mode_info_context->mbmi.ref_frame;
+            }
+        }
+#endif
+
+        if (this_rd < best_rd || x->skip)
+        {
+            /* Note index of best mode */
+            best_mode_index = mode_index;
+
+            *returnrate = rate2;
+            *returndistortion = distortion2;
+            best_rd_sse = sse;
+            best_rd = this_rd;
+            memcpy(&best_mbmode, &x->e_mbd.mode_info_context->mbmi,
+                   sizeof(MB_MODE_INFO));
+
+            /* Testing this mode gave rise to an improvement in best error
+             * score. Lower threshold a bit for next time
+             */
+            x->rd_thresh_mult[mode_index] =
+                     (x->rd_thresh_mult[mode_index] >= (MIN_THRESHMULT + 2)) ?
+                     x->rd_thresh_mult[mode_index] - 2 : MIN_THRESHMULT;
+            x->rd_threshes[mode_index] =
+                                   (cpi->rd_baseline_thresh[mode_index] >> 7) *
+                                   x->rd_thresh_mult[mode_index];
+        }
+
+        /* If the mode did not help improve the best error case then raise the
+         * threshold for testing that mode next time around.
+         */
+        else
+        {
+            x->rd_thresh_mult[mode_index] += 4;
+
+            if (x->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
+                x->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
+
+            x->rd_threshes[mode_index] =
+                         (cpi->rd_baseline_thresh[mode_index] >> 7) *
+                         x->rd_thresh_mult[mode_index];
+        }
+
+        if (x->skip)
+            break;
+    }
+
+    /* Reduce the activation RD thresholds for the best choice mode */
+    if ((cpi->rd_baseline_thresh[best_mode_index] > 0) && (cpi->rd_baseline_thresh[best_mode_index] < (INT_MAX >> 2)))
+    {
+        int best_adjustment = (x->rd_thresh_mult[best_mode_index] >> 3);
+
+        x->rd_thresh_mult[best_mode_index] =
+                        (x->rd_thresh_mult[best_mode_index]
+                        >= (MIN_THRESHMULT + best_adjustment)) ?
+                        x->rd_thresh_mult[best_mode_index] - best_adjustment :
+                        MIN_THRESHMULT;
+        x->rd_threshes[best_mode_index] =
+                        (cpi->rd_baseline_thresh[best_mode_index] >> 7) *
+                        x->rd_thresh_mult[best_mode_index];
+    }
+
+
+    {
+        int this_rdbin = (*returndistortion >> 7);
+
+        if (this_rdbin >= 1024)
+        {
+            this_rdbin = 1023;
+        }
+
+        x->error_bins[this_rdbin] ++;
+    }
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity)
+    {
+        int block_index = mb_row * cpi->common.mb_cols + mb_col;
+        int reevaluate = 0;
+        int is_noisy = 0;
+        if (x->best_sse_inter_mode == DC_PRED)
+        {
+            /* No best MV found. */
+            x->best_sse_inter_mode = best_mbmode.mode;
+            x->best_sse_mv = best_mbmode.mv;
+            x->need_to_clamp_best_mvs = best_mbmode.need_to_clamp_mvs;
+            x->best_reference_frame = best_mbmode.ref_frame;
+            best_sse = best_rd_sse;
+        }
+        // For non-skin blocks that have selected ZEROMV for this current frame,
+        // and have been selecting ZEROMV_LAST (on the base layer frame) at
+        // least |x~20| consecutive past frames in a row, label the block for
+        // possible increase in denoising strength. We also condition this
+        // labeling on there being significant denoising in the scene
+        if  (cpi->oxcf.noise_sensitivity == 4) {
+          if (cpi->denoiser.nmse_source_diff >
+              70 * cpi->denoiser.threshold_aggressive_mode / 100)
+            is_noisy = 1;
+        } else {
+          if (cpi->mse_source_denoised > 1000)
+            is_noisy = 1;
+        }
+        x->increase_denoising = 0;
+        if (!x->is_skin &&
+            x->best_sse_inter_mode == ZEROMV &&
+            (x->best_reference_frame == LAST_FRAME ||
+            x->best_reference_frame == cpi->closest_reference_frame) &&
+            cpi->consec_zero_last[block_index] >= 20 &&
+            is_noisy) {
+            x->increase_denoising = 1;
+        }
+        x->denoise_zeromv = 0;
+        vp8_denoiser_denoise_mb(&cpi->denoiser, x, best_sse, zero_mv_sse,
+                                recon_yoffset, recon_uvoffset,
+                                &cpi->common.lf_info, mb_row, mb_col,
+                                block_index);
+
+        // Reevaluate ZEROMV after denoising: for large noise content
+        // (i.e., cpi->mse_source_denoised is above threshold), do this for all
+        // blocks that did not pick ZEROMV as best mode but are using ZEROMV
+        // for denoising. Otherwise, always re-evaluate for blocks that picked
+        // INTRA mode as best mode.
+        // Avoid blocks that have been biased against ZERO_LAST
+        // (i.e., dot artifact candidate blocks).
+        reevaluate = (best_mbmode.ref_frame == INTRA_FRAME) ||
+                     (best_mbmode.mode != ZEROMV &&
+                      x->denoise_zeromv &&
+                      cpi->mse_source_denoised > 2000);
+        if (!dot_artifact_candidate &&
+            reevaluate &&
+            x->best_zeromv_reference_frame != INTRA_FRAME)
+        {
+            int this_rd = 0;
+            int this_ref_frame = x->best_zeromv_reference_frame;
+            rd_adjustment = 100;
+            rate2 = x->ref_frame_cost[this_ref_frame] +
+                    vp8_cost_mv_ref(ZEROMV, mdcounts);
+            distortion2 = 0;
+
+            /* set up the proper prediction buffers for the frame */
+            x->e_mbd.mode_info_context->mbmi.ref_frame = this_ref_frame;
+            x->e_mbd.pre.y_buffer = plane[this_ref_frame][0];
+            x->e_mbd.pre.u_buffer = plane[this_ref_frame][1];
+            x->e_mbd.pre.v_buffer = plane[this_ref_frame][2];
+
+            x->e_mbd.mode_info_context->mbmi.mode = ZEROMV;
+            x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+            x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
+            this_rd = evaluate_inter_mode(&sse, rate2, &distortion2, cpi, x,
+                                          rd_adjustment);
+
+            if (this_rd < best_rd)
+            {
+                memcpy(&best_mbmode, &x->e_mbd.mode_info_context->mbmi,
+                       sizeof(MB_MODE_INFO));
+            }
+        }
+
+    }
+#endif
+
+    if (cpi->is_src_frame_alt_ref &&
+        (best_mbmode.mode != ZEROMV || best_mbmode.ref_frame != ALTREF_FRAME))
+    {
+        x->e_mbd.mode_info_context->mbmi.mode = ZEROMV;
+        x->e_mbd.mode_info_context->mbmi.ref_frame = ALTREF_FRAME;
+        x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
+        x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+        x->e_mbd.mode_info_context->mbmi.mb_skip_coeff =
+                                        (cpi->common.mb_no_coeff_skip);
+        x->e_mbd.mode_info_context->mbmi.partitioning = 0;
+
+        return;
+    }
+
+    /* set to the best mb mode, this copy can be skip if x->skip since it
+     * already has the right content */
+    if (!x->skip)
+        memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode,
+               sizeof(MB_MODE_INFO));
+
+    if (best_mbmode.mode <= B_PRED)
+    {
+        /* set mode_info_context->mbmi.uv_mode */
+        pick_intra_mbuv_mode(x);
+    }
+
+    if (sign_bias
+      != cpi->common.ref_frame_sign_bias[xd->mode_info_context->mbmi.ref_frame])
+        best_ref_mv.as_int = best_ref_mv_sb[!sign_bias].as_int;
+
+    update_mvcount(x, &best_ref_mv);
+}
+
+void vp8_pick_intra_mode(MACROBLOCK *x, int *rate_)
+{
+    int error4x4, error16x16 = INT_MAX;
+    int rate, best_rate = 0, distortion, best_sse;
+    MB_PREDICTION_MODE mode, best_mode = DC_PRED;
+    int this_rd;
+    unsigned int sse;
+    BLOCK *b = &x->block[0];
+    MACROBLOCKD *xd = &x->e_mbd;
+
+    xd->mode_info_context->mbmi.ref_frame = INTRA_FRAME;
+
+    pick_intra_mbuv_mode(x);
+
+    for (mode = DC_PRED; mode <= TM_PRED; mode ++)
+    {
+        xd->mode_info_context->mbmi.mode = mode;
+        vp8_build_intra_predictors_mby_s(xd,
+                                         xd->dst.y_buffer - xd->dst.y_stride,
+                                         xd->dst.y_buffer - 1,
+                                         xd->dst.y_stride,
+                                         xd->predictor,
+                                         16);
+        distortion = vpx_variance16x16
+            (*(b->base_src), b->src_stride, xd->predictor, 16, &sse);
+        rate = x->mbmode_cost[xd->frame_type][mode];
+        this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
+
+        if (error16x16 > this_rd)
+        {
+            error16x16 = this_rd;
+            best_mode = mode;
+            best_sse = sse;
+            best_rate = rate;
+        }
+    }
+    xd->mode_info_context->mbmi.mode = best_mode;
+
+    error4x4 = pick_intra4x4mby_modes(x, &rate,
+                                      &best_sse);
+    if (error4x4 < error16x16)
+    {
+        xd->mode_info_context->mbmi.mode = B_PRED;
+        best_rate = rate;
+    }
+
+    *rate_ = best_rate;
+}
diff --git a/media/libvpx/vp8/encoder/pickinter.h b/media/libvpx/vp8/encoder/pickinter.h
new file mode 100644
index 000000000..cf3b1f8d4
--- /dev/null
+++ b/media/libvpx/vp8/encoder/pickinter.h
@@ -0,0 +1,35 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_PICKINTER_H_
+#define VP8_ENCODER_PICKINTER_H_
+#include "vpx_config.h"
+#include "vp8/common/onyxc_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset,
+                                int recon_uvoffset, int *returnrate,
+                                int *returndistortion, int *returnintra,
+                                int mb_row, int mb_col);
+extern void vp8_pick_intra_mode(MACROBLOCK *x, int *rate);
+
+extern int vp8_get_inter_mbpred_error(MACROBLOCK *mb,
+                                      const vp8_variance_fn_ptr_t *vfp,
+                                      unsigned int *sse,
+                                      int_mv this_mv);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_PICKINTER_H_
diff --git a/media/libvpx/vp8/encoder/picklpf.c b/media/libvpx/vp8/encoder/picklpf.c
new file mode 100644
index 000000000..875b37f68
--- /dev/null
+++ b/media/libvpx/vp8/encoder/picklpf.c
@@ -0,0 +1,407 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "./vpx_dsp_rtcd.h"
+#include "./vpx_scale_rtcd.h"
+#include "vp8/common/onyxc_int.h"
+#include "onyx_int.h"
+#include "quantize.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vp8/common/alloccommon.h"
+#include "vp8/common/loopfilter.h"
+#if ARCH_ARM
+#include "vpx_ports/arm.h"
+#endif
+
+extern int vp8_calc_ss_err(YV12_BUFFER_CONFIG *source, YV12_BUFFER_CONFIG *dest);
+
+static void yv12_copy_partial_frame(YV12_BUFFER_CONFIG *src_ybc,
+                                    YV12_BUFFER_CONFIG *dst_ybc)
+{
+    unsigned char *src_y, *dst_y;
+    int yheight;
+    int ystride;
+    int yoffset;
+    int linestocopy;
+
+    yheight  = src_ybc->y_height;
+    ystride  = src_ybc->y_stride;
+
+    /* number of MB rows to use in partial filtering */
+    linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION;
+    linestocopy = linestocopy ? linestocopy << 4 : 16;     /* 16 lines per MB */
+
+    /* Copy extra 4 so that full filter context is available if filtering done
+     * on the copied partial frame and not original. Partial filter does mb
+     * filtering for top row also, which can modify3 pixels above.
+     */
+    linestocopy += 4;
+    /* partial image starts at ~middle of frame (macroblock border)*/
+    yoffset  = ystride * (((yheight >> 5) * 16) - 4);
+    src_y = src_ybc->y_buffer + yoffset;
+    dst_y = dst_ybc->y_buffer + yoffset;
+
+    memcpy(dst_y, src_y, ystride * linestocopy);
+}
+
+static int calc_partial_ssl_err(YV12_BUFFER_CONFIG *source,
+                                YV12_BUFFER_CONFIG *dest)
+{
+    int i, j;
+    int Total = 0;
+    int srcoffset, dstoffset;
+    unsigned char *src = source->y_buffer;
+    unsigned char *dst = dest->y_buffer;
+
+    int linestocopy;
+
+    /* number of MB rows to use in partial filtering */
+    linestocopy = (source->y_height >> 4) / PARTIAL_FRAME_FRACTION;
+    linestocopy = linestocopy ? linestocopy << 4 : 16;     /* 16 lines per MB */
+
+
+    /* partial image starts at ~middle of frame (macroblock border)*/
+    srcoffset = source->y_stride * ((dest->y_height >> 5) * 16);
+    dstoffset = dest->y_stride   * ((dest->y_height >> 5) * 16);
+
+    src += srcoffset;
+    dst += dstoffset;
+
+    /* Loop through the Y plane raw and reconstruction data summing
+     * (square differences)
+     */
+    for (i = 0; i < linestocopy; i += 16)
+    {
+        for (j = 0; j < source->y_width; j += 16)
+        {
+            unsigned int sse;
+            Total += vpx_mse16x16(src + j, source->y_stride,
+                                                     dst + j, dest->y_stride,
+                                                     &sse);
+        }
+
+        src += 16 * source->y_stride;
+        dst += 16 * dest->y_stride;
+    }
+
+    return Total;
+}
+
+/* Enforce a minimum filter level based upon baseline Q */
+static int get_min_filter_level(VP8_COMP *cpi, int base_qindex)
+{
+    int min_filter_level;
+
+    if (cpi->source_alt_ref_active && cpi->common.refresh_golden_frame &&
+        !cpi->common.refresh_alt_ref_frame)
+        min_filter_level = 0;
+    else
+    {
+        if (base_qindex <= 6)
+            min_filter_level = 0;
+        else if (base_qindex <= 16)
+            min_filter_level = 1;
+        else
+            min_filter_level = (base_qindex / 8);
+    }
+
+    return min_filter_level;
+}
+
+/* Enforce a maximum filter level based upon baseline Q */
+static int get_max_filter_level(VP8_COMP *cpi, int base_qindex)
+{
+    /* PGW August 2006: Highest filter values almost always a bad idea */
+
+    /* jbb chg: 20100118 - not so any more with this overquant stuff allow
+     * high values with lots of intra coming in.
+     */
+    int max_filter_level = MAX_LOOP_FILTER;
+    (void)base_qindex;
+
+    if (cpi->twopass.section_intra_rating > 8)
+        max_filter_level = MAX_LOOP_FILTER * 3 / 4;
+
+    return max_filter_level;
+}
+
+void vp8cx_pick_filter_level_fast(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    int best_err = 0;
+    int filt_err = 0;
+    int min_filter_level = get_min_filter_level(cpi, cm->base_qindex);
+    int max_filter_level = get_max_filter_level(cpi, cm->base_qindex);
+    int filt_val;
+    int best_filt_val;
+    YV12_BUFFER_CONFIG * saved_frame = cm->frame_to_show;
+
+    /* Replace unfiltered frame buffer with a new one */
+    cm->frame_to_show = &cpi->pick_lf_lvl_frame;
+
+    if (cm->frame_type == KEY_FRAME)
+        cm->sharpness_level = 0;
+    else
+        cm->sharpness_level = cpi->oxcf.Sharpness;
+
+    if (cm->sharpness_level != cm->last_sharpness_level)
+    {
+        vp8_loop_filter_update_sharpness(&cm->lf_info, cm->sharpness_level);
+        cm->last_sharpness_level = cm->sharpness_level;
+    }
+
+    /* Start the search at the previous frame filter level unless it is
+     * now out of range.
+     */
+    if (cm->filter_level < min_filter_level)
+        cm->filter_level = min_filter_level;
+    else if (cm->filter_level > max_filter_level)
+        cm->filter_level = max_filter_level;
+
+    filt_val = cm->filter_level;
+    best_filt_val = filt_val;
+
+    /* Get the err using the previous frame's filter value. */
+
+    /* Copy the unfiltered / processed recon buffer to the new buffer */
+    yv12_copy_partial_frame(saved_frame, cm->frame_to_show);
+    vp8_loop_filter_partial_frame(cm, &cpi->mb.e_mbd, filt_val);
+
+    best_err = calc_partial_ssl_err(sd, cm->frame_to_show);
+
+    filt_val -= 1 + (filt_val > 10);
+
+    /* Search lower filter levels */
+    while (filt_val >= min_filter_level)
+    {
+        /* Apply the loop filter */
+        yv12_copy_partial_frame(saved_frame, cm->frame_to_show);
+        vp8_loop_filter_partial_frame(cm, &cpi->mb.e_mbd, filt_val);
+
+        /* Get the err for filtered frame */
+        filt_err = calc_partial_ssl_err(sd, cm->frame_to_show);
+
+        /* Update the best case record or exit loop. */
+        if (filt_err < best_err)
+        {
+            best_err = filt_err;
+            best_filt_val = filt_val;
+        }
+        else
+            break;
+
+        /* Adjust filter level */
+        filt_val -= 1 + (filt_val > 10);
+    }
+
+    /* Search up (note that we have already done filt_val = cm->filter_level) */
+    filt_val = cm->filter_level + 1 + (filt_val > 10);
+
+    if (best_filt_val == cm->filter_level)
+    {
+        /* Resist raising filter level for very small gains */
+        best_err -= (best_err >> 10);
+
+        while (filt_val < max_filter_level)
+        {
+            /* Apply the loop filter */
+            yv12_copy_partial_frame(saved_frame, cm->frame_to_show);
+
+            vp8_loop_filter_partial_frame(cm, &cpi->mb.e_mbd, filt_val);
+
+            /* Get the err for filtered frame */
+            filt_err = calc_partial_ssl_err(sd, cm->frame_to_show);
+
+            /* Update the best case record or exit loop. */
+            if (filt_err < best_err)
+            {
+                /* Do not raise filter level if improvement is < 1 part
+                 * in 4096
+                 */
+                best_err = filt_err - (filt_err >> 10);
+
+                best_filt_val = filt_val;
+            }
+            else
+                break;
+
+            /* Adjust filter level */
+            filt_val += 1 + (filt_val > 10);
+        }
+    }
+
+    cm->filter_level = best_filt_val;
+
+    if (cm->filter_level < min_filter_level)
+        cm->filter_level = min_filter_level;
+
+    if (cm->filter_level > max_filter_level)
+        cm->filter_level = max_filter_level;
+
+    /* restore unfiltered frame pointer */
+    cm->frame_to_show = saved_frame;
+}
+
+/* Stub function for now Alt LF not used */
+void vp8cx_set_alt_lf_level(VP8_COMP *cpi, int filt_val)
+{
+    MACROBLOCKD *mbd = &cpi->mb.e_mbd;
+    (void) filt_val;
+
+    mbd->segment_feature_data[MB_LVL_ALT_LF][0] = cpi->segment_feature_data[MB_LVL_ALT_LF][0];
+    mbd->segment_feature_data[MB_LVL_ALT_LF][1] = cpi->segment_feature_data[MB_LVL_ALT_LF][1];
+    mbd->segment_feature_data[MB_LVL_ALT_LF][2] = cpi->segment_feature_data[MB_LVL_ALT_LF][2];
+    mbd->segment_feature_data[MB_LVL_ALT_LF][3] = cpi->segment_feature_data[MB_LVL_ALT_LF][3];
+}
+
+void vp8cx_pick_filter_level(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    int best_err = 0;
+    int filt_err = 0;
+    int min_filter_level = get_min_filter_level(cpi, cm->base_qindex);
+    int max_filter_level = get_max_filter_level(cpi, cm->base_qindex);
+
+    int filter_step;
+    int filt_high = 0;
+    int filt_mid;
+    int filt_low = 0;
+    int filt_best;
+    int filt_direction = 0;
+
+    /* Bias against raising loop filter and in favor of lowering it */
+    int Bias = 0;
+
+    int ss_err[MAX_LOOP_FILTER + 1];
+
+    YV12_BUFFER_CONFIG * saved_frame = cm->frame_to_show;
+
+    memset(ss_err, 0, sizeof(ss_err));
+
+    /* Replace unfiltered frame buffer with a new one */
+    cm->frame_to_show = &cpi->pick_lf_lvl_frame;
+
+    if (cm->frame_type == KEY_FRAME)
+        cm->sharpness_level = 0;
+    else
+        cm->sharpness_level = cpi->oxcf.Sharpness;
+
+    /* Start the search at the previous frame filter level unless it is
+     * now out of range.
+     */
+    filt_mid = cm->filter_level;
+
+    if (filt_mid < min_filter_level)
+        filt_mid = min_filter_level;
+    else if (filt_mid > max_filter_level)
+        filt_mid = max_filter_level;
+
+    /* Define the initial step size */
+    filter_step = (filt_mid < 16) ? 4 : filt_mid / 4;
+
+    /* Get baseline error score */
+
+    /* Copy the unfiltered / processed recon buffer to the new buffer */
+    vpx_yv12_copy_y(saved_frame, cm->frame_to_show);
+
+    vp8cx_set_alt_lf_level(cpi, filt_mid);
+    vp8_loop_filter_frame_yonly(cm, &cpi->mb.e_mbd, filt_mid);
+
+    best_err = vp8_calc_ss_err(sd, cm->frame_to_show);
+
+    ss_err[filt_mid] = best_err;
+
+    filt_best = filt_mid;
+
+    while (filter_step > 0)
+    {
+        Bias = (best_err >> (15 - (filt_mid / 8))) * filter_step;
+
+        if (cpi->twopass.section_intra_rating < 20)
+            Bias = Bias * cpi->twopass.section_intra_rating / 20;
+
+        filt_high = ((filt_mid + filter_step) > max_filter_level) ? max_filter_level : (filt_mid + filter_step);
+        filt_low = ((filt_mid - filter_step) < min_filter_level) ? min_filter_level : (filt_mid - filter_step);
+
+        if ((filt_direction <= 0) && (filt_low != filt_mid))
+        {
+            if(ss_err[filt_low] == 0)
+            {
+                /* Get Low filter error score */
+                vpx_yv12_copy_y(saved_frame, cm->frame_to_show);
+                vp8cx_set_alt_lf_level(cpi, filt_low);
+                vp8_loop_filter_frame_yonly(cm, &cpi->mb.e_mbd, filt_low);
+
+                filt_err = vp8_calc_ss_err(sd, cm->frame_to_show);
+                ss_err[filt_low] = filt_err;
+            }
+            else
+                filt_err = ss_err[filt_low];
+
+            /* If value is close to the best so far then bias towards a
+             * lower loop filter value.
+             */
+            if ((filt_err - Bias) < best_err)
+            {
+                /* Was it actually better than the previous best? */
+                if (filt_err < best_err)
+                    best_err = filt_err;
+
+                filt_best = filt_low;
+            }
+        }
+
+        /* Now look at filt_high */
+        if ((filt_direction >= 0) && (filt_high != filt_mid))
+        {
+            if(ss_err[filt_high] == 0)
+            {
+                vpx_yv12_copy_y(saved_frame, cm->frame_to_show);
+                vp8cx_set_alt_lf_level(cpi, filt_high);
+                vp8_loop_filter_frame_yonly(cm, &cpi->mb.e_mbd, filt_high);
+
+                filt_err = vp8_calc_ss_err(sd, cm->frame_to_show);
+                ss_err[filt_high] = filt_err;
+            }
+            else
+                filt_err = ss_err[filt_high];
+
+            /* Was it better than the previous best? */
+            if (filt_err < (best_err - Bias))
+            {
+                best_err = filt_err;
+                filt_best = filt_high;
+            }
+        }
+
+        /* Half the step distance if the best filter value was the same
+         * as last time
+         */
+        if (filt_best == filt_mid)
+        {
+            filter_step = filter_step / 2;
+            filt_direction = 0;
+        }
+        else
+        {
+            filt_direction = (filt_best < filt_mid) ? -1 : 1;
+            filt_mid = filt_best;
+        }
+    }
+
+    cm->filter_level = filt_best;
+
+    /* restore unfiltered frame pointer */
+    cm->frame_to_show = saved_frame;
+}
diff --git a/media/libvpx/vp8/encoder/quantize.c b/media/libvpx/vp8/encoder/quantize.c
new file mode 100644
index 000000000..c5a7bc670
--- /dev/null
+++ b/media/libvpx/vp8/encoder/quantize.c
@@ -0,0 +1,583 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <math.h>
+#include "vpx_mem/vpx_mem.h"
+
+#include "onyx_int.h"
+#include "quantize.h"
+#include "vp8/common/quant_common.h"
+
+void vp8_fast_quantize_b_c(BLOCK *b, BLOCKD *d)
+{
+    int i, rc, eob;
+    int x, y, z, sz;
+    short *coeff_ptr   = b->coeff;
+    short *round_ptr   = b->round;
+    short *quant_ptr   = b->quant_fast;
+    short *qcoeff_ptr  = d->qcoeff;
+    short *dqcoeff_ptr = d->dqcoeff;
+    short *dequant_ptr = d->dequant;
+
+    eob = -1;
+    for (i = 0; i < 16; i++)
+    {
+        rc   = vp8_default_zig_zag1d[i];
+        z    = coeff_ptr[rc];
+
+        sz = (z >> 31);                              /* sign of z */
+        x  = (z ^ sz) - sz;                          /* x = abs(z) */
+
+        y  = ((x + round_ptr[rc]) * quant_ptr[rc]) >> 16; /* quantize (x) */
+        x  = (y ^ sz) - sz;                          /* get the sign back */
+        qcoeff_ptr[rc] = x;                          /* write to destination */
+        dqcoeff_ptr[rc] = x * dequant_ptr[rc];       /* dequantized value */
+
+        if (y)
+        {
+            eob = i;                                 /* last nonzero coeffs */
+        }
+    }
+    *d->eob = (char)(eob + 1);
+}
+
+void vp8_regular_quantize_b_c(BLOCK *b, BLOCKD *d)
+{
+    int i, rc, eob;
+    int zbin;
+    int x, y, z, sz;
+    short *zbin_boost_ptr  = b->zrun_zbin_boost;
+    short *coeff_ptr       = b->coeff;
+    short *zbin_ptr        = b->zbin;
+    short *round_ptr       = b->round;
+    short *quant_ptr       = b->quant;
+    short *quant_shift_ptr = b->quant_shift;
+    short *qcoeff_ptr      = d->qcoeff;
+    short *dqcoeff_ptr     = d->dqcoeff;
+    short *dequant_ptr     = d->dequant;
+    short zbin_oq_value    = b->zbin_extra;
+
+    memset(qcoeff_ptr, 0, 32);
+    memset(dqcoeff_ptr, 0, 32);
+
+    eob = -1;
+
+    for (i = 0; i < 16; i++)
+    {
+        rc   = vp8_default_zig_zag1d[i];
+        z    = coeff_ptr[rc];
+
+        zbin = zbin_ptr[rc] + *zbin_boost_ptr + zbin_oq_value;
+
+        zbin_boost_ptr ++;
+        sz = (z >> 31);                              /* sign of z */
+        x  = (z ^ sz) - sz;                          /* x = abs(z) */
+
+        if (x >= zbin)
+        {
+            x += round_ptr[rc];
+            y  = ((((x * quant_ptr[rc]) >> 16) + x)
+                 * quant_shift_ptr[rc]) >> 16;       /* quantize (x) */
+            x  = (y ^ sz) - sz;                      /* get the sign back */
+            qcoeff_ptr[rc]  = x;                     /* write to destination */
+            dqcoeff_ptr[rc] = x * dequant_ptr[rc];   /* dequantized value */
+
+            if (y)
+            {
+                eob = i;                             /* last nonzero coeffs */
+                zbin_boost_ptr = b->zrun_zbin_boost; /* reset zero runlength */
+            }
+        }
+    }
+
+    *d->eob = (char)(eob + 1);
+}
+
+void vp8_quantize_mby(MACROBLOCK *x)
+{
+    int i;
+    int has_2nd_order = (x->e_mbd.mode_info_context->mbmi.mode != B_PRED
+        && x->e_mbd.mode_info_context->mbmi.mode != SPLITMV);
+
+    for (i = 0; i < 16; i++)
+        x->quantize_b(&x->block[i], &x->e_mbd.block[i]);
+
+    if(has_2nd_order)
+        x->quantize_b(&x->block[24], &x->e_mbd.block[24]);
+}
+
+void vp8_quantize_mb(MACROBLOCK *x)
+{
+    int i;
+    int has_2nd_order=(x->e_mbd.mode_info_context->mbmi.mode != B_PRED
+        && x->e_mbd.mode_info_context->mbmi.mode != SPLITMV);
+
+    for (i = 0; i < 24+has_2nd_order; i++)
+        x->quantize_b(&x->block[i], &x->e_mbd.block[i]);
+}
+
+
+void vp8_quantize_mbuv(MACROBLOCK *x)
+{
+    int i;
+
+    for (i = 16; i < 24; i++)
+        x->quantize_b(&x->block[i], &x->e_mbd.block[i]);
+}
+
+static const int qrounding_factors[129] =
+{
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48
+};
+
+
+static const int qzbin_factors[129] =
+{
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80
+};
+
+
+static const int qrounding_factors_y2[129] =
+{
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48,
+    48
+};
+
+
+static const int qzbin_factors_y2[129] =
+{
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    84, 84, 84, 84, 84, 84, 84, 84,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80, 80, 80, 80, 80, 80, 80, 80,
+    80
+};
+
+
+static void invert_quant(int improved_quant, short *quant,
+                         short *shift, short d)
+{
+    if(improved_quant)
+    {
+        unsigned t;
+        int l;
+        t = d;
+        for(l = 0; t > 1; l++)
+            t>>=1;
+        t = 1 + (1<<(16+l))/d;
+        *quant = (short)(t - (1<<16));
+        *shift = l;
+        /* use multiplication and constant shift by 16 */
+        *shift = 1 << (16 - *shift);
+    }
+    else
+    {
+        *quant = (1 << 16) / d;
+        *shift = 0;
+        /* use multiplication and constant shift by 16 */
+        *shift = 1 << (16 - *shift);
+    }
+}
+
+
+void vp8cx_init_quantizer(VP8_COMP *cpi)
+{
+    int i;
+    int quant_val;
+    int Q;
+
+    int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44,
+                          44, 44};
+
+    for (Q = 0; Q < QINDEX_RANGE; Q++)
+    {
+        /* dc values */
+        quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
+        cpi->Y1quant_fast[Q][0] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + 0,
+                     cpi->Y1quant_shift[Q] + 0, quant_val);
+        cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+        cpi->Y1round[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.Y1dequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
+        cpi->Y2quant_fast[Q][0] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + 0,
+                     cpi->Y2quant_shift[Q] + 0, quant_val);
+        cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
+        cpi->Y2round[Q][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
+        cpi->common.Y2dequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
+        cpi->UVquant_fast[Q][0] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + 0,
+                     cpi->UVquant_shift[Q] + 0, quant_val);
+        cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
+        cpi->UVround[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.UVdequant[Q][0] = quant_val;
+        cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
+
+        /* all the ac values = ; */
+        quant_val = vp8_ac_yquant(Q);
+        cpi->Y1quant_fast[Q][1] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + 1,
+                     cpi->Y1quant_shift[Q] + 1, quant_val);
+        cpi->Y1zbin[Q][1] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+        cpi->Y1round[Q][1] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.Y1dequant[Q][1] = quant_val;
+        cpi->zrun_zbin_boost_y1[Q][1] = (quant_val * zbin_boost[1]) >> 7;
+
+        quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
+        cpi->Y2quant_fast[Q][1] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + 1,
+                     cpi->Y2quant_shift[Q] + 1, quant_val);
+        cpi->Y2zbin[Q][1] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
+        cpi->Y2round[Q][1] = (qrounding_factors_y2[Q] * quant_val) >> 7;
+        cpi->common.Y2dequant[Q][1] = quant_val;
+        cpi->zrun_zbin_boost_y2[Q][1] = (quant_val * zbin_boost[1]) >> 7;
+
+        quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
+        cpi->UVquant_fast[Q][1] = (1 << 16) / quant_val;
+        invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + 1,
+                     cpi->UVquant_shift[Q] + 1, quant_val);
+        cpi->UVzbin[Q][1] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
+        cpi->UVround[Q][1] = (qrounding_factors[Q] * quant_val) >> 7;
+        cpi->common.UVdequant[Q][1] = quant_val;
+        cpi->zrun_zbin_boost_uv[Q][1] = (quant_val * zbin_boost[1]) >> 7;
+
+        for (i = 2; i < 16; i++)
+        {
+            cpi->Y1quant_fast[Q][i] = cpi->Y1quant_fast[Q][1];
+            cpi->Y1quant[Q][i] = cpi->Y1quant[Q][1];
+            cpi->Y1quant_shift[Q][i] = cpi->Y1quant_shift[Q][1];
+            cpi->Y1zbin[Q][i] = cpi->Y1zbin[Q][1];
+            cpi->Y1round[Q][i] = cpi->Y1round[Q][1];
+            cpi->zrun_zbin_boost_y1[Q][i] = (cpi->common.Y1dequant[Q][1] *
+                                             zbin_boost[i]) >> 7;
+
+            cpi->Y2quant_fast[Q][i] = cpi->Y2quant_fast[Q][1];
+            cpi->Y2quant[Q][i] = cpi->Y2quant[Q][1];
+            cpi->Y2quant_shift[Q][i] = cpi->Y2quant_shift[Q][1];
+            cpi->Y2zbin[Q][i] = cpi->Y2zbin[Q][1];
+            cpi->Y2round[Q][i] = cpi->Y2round[Q][1];
+            cpi->zrun_zbin_boost_y2[Q][i] = (cpi->common.Y2dequant[Q][1] *
+                                             zbin_boost[i]) >> 7;
+
+            cpi->UVquant_fast[Q][i] = cpi->UVquant_fast[Q][1];
+            cpi->UVquant[Q][i] = cpi->UVquant[Q][1];
+            cpi->UVquant_shift[Q][i] = cpi->UVquant_shift[Q][1];
+            cpi->UVzbin[Q][i] = cpi->UVzbin[Q][1];
+            cpi->UVround[Q][i] = cpi->UVround[Q][1];
+            cpi->zrun_zbin_boost_uv[Q][i] = (cpi->common.UVdequant[Q][1] *
+                                             zbin_boost[i]) >> 7;
+        }
+    }
+}
+
+#define ZBIN_EXTRA_Y \
+    (( cpi->common.Y1dequant[QIndex][1] *  \
+    ( x->zbin_over_quant +  \
+      x->zbin_mode_boost +  \
+      x->act_zbin_adj ) ) >> 7)
+
+#define ZBIN_EXTRA_UV \
+    (( cpi->common.UVdequant[QIndex][1] *  \
+    ( x->zbin_over_quant +  \
+      x->zbin_mode_boost +  \
+      x->act_zbin_adj ) ) >> 7)
+
+#define ZBIN_EXTRA_Y2 \
+    (( cpi->common.Y2dequant[QIndex][1] *  \
+    ( (x->zbin_over_quant / 2) +  \
+       x->zbin_mode_boost +  \
+       x->act_zbin_adj ) ) >> 7)
+
+void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x, int ok_to_skip)
+{
+    int i;
+    int QIndex;
+    MACROBLOCKD *xd = &x->e_mbd;
+    int zbin_extra;
+
+    /* Select the baseline MB Q index. */
+    if (xd->segmentation_enabled)
+    {
+        /* Abs Value */
+        if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
+            QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][xd->mode_info_context->mbmi.segment_id];
+        /* Delta Value */
+        else
+        {
+            QIndex = cpi->common.base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][xd->mode_info_context->mbmi.segment_id];
+            /* Clamp to valid range */
+            QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;
+        }
+    }
+    else
+        QIndex = cpi->common.base_qindex;
+
+    /* This initialization should be called at least once. Use ok_to_skip to
+     * decide if it is ok to skip.
+     * Before encoding a frame, this function is always called with ok_to_skip
+     * =0, which means no skiping of calculations. The "last" values are
+     * initialized at that time.
+     */
+    if (!ok_to_skip || QIndex != x->q_index)
+    {
+
+        xd->dequant_y1_dc[0] = 1;
+        xd->dequant_y1[0] = cpi->common.Y1dequant[QIndex][0];
+        xd->dequant_y2[0] = cpi->common.Y2dequant[QIndex][0];
+        xd->dequant_uv[0] = cpi->common.UVdequant[QIndex][0];
+
+        for (i = 1; i < 16; i++)
+        {
+            xd->dequant_y1_dc[i] =
+            xd->dequant_y1[i] = cpi->common.Y1dequant[QIndex][1];
+            xd->dequant_y2[i] = cpi->common.Y2dequant[QIndex][1];
+            xd->dequant_uv[i] = cpi->common.UVdequant[QIndex][1];
+        }
+#if 1
+        /*TODO:  Remove dequant from BLOCKD.  This is a temporary solution until
+         * the quantizer code uses a passed in pointer to the dequant constants.
+         * This will also require modifications to the x86 and neon assembly.
+         * */
+        for (i = 0; i < 16; i++)
+            x->e_mbd.block[i].dequant = xd->dequant_y1;
+        for (i = 16; i < 24; i++)
+            x->e_mbd.block[i].dequant = xd->dequant_uv;
+        x->e_mbd.block[24].dequant = xd->dequant_y2;
+#endif
+
+        /* Y */
+        zbin_extra = ZBIN_EXTRA_Y;
+
+        for (i = 0; i < 16; i++)
+        {
+            x->block[i].quant = cpi->Y1quant[QIndex];
+            x->block[i].quant_fast = cpi->Y1quant_fast[QIndex];
+            x->block[i].quant_shift = cpi->Y1quant_shift[QIndex];
+            x->block[i].zbin = cpi->Y1zbin[QIndex];
+            x->block[i].round = cpi->Y1round[QIndex];
+            x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_y1[QIndex];
+            x->block[i].zbin_extra = (short)zbin_extra;
+        }
+
+        /* UV */
+        zbin_extra = ZBIN_EXTRA_UV;
+
+        for (i = 16; i < 24; i++)
+        {
+            x->block[i].quant = cpi->UVquant[QIndex];
+            x->block[i].quant_fast = cpi->UVquant_fast[QIndex];
+            x->block[i].quant_shift = cpi->UVquant_shift[QIndex];
+            x->block[i].zbin = cpi->UVzbin[QIndex];
+            x->block[i].round = cpi->UVround[QIndex];
+            x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_uv[QIndex];
+            x->block[i].zbin_extra = (short)zbin_extra;
+        }
+
+        /* Y2 */
+        zbin_extra = ZBIN_EXTRA_Y2;
+
+        x->block[24].quant_fast = cpi->Y2quant_fast[QIndex];
+        x->block[24].quant = cpi->Y2quant[QIndex];
+        x->block[24].quant_shift = cpi->Y2quant_shift[QIndex];
+        x->block[24].zbin = cpi->Y2zbin[QIndex];
+        x->block[24].round = cpi->Y2round[QIndex];
+        x->block[24].zrun_zbin_boost = cpi->zrun_zbin_boost_y2[QIndex];
+        x->block[24].zbin_extra = (short)zbin_extra;
+
+        /* save this macroblock QIndex for vp8_update_zbin_extra() */
+        x->q_index = QIndex;
+
+        x->last_zbin_over_quant = x->zbin_over_quant;
+        x->last_zbin_mode_boost = x->zbin_mode_boost;
+        x->last_act_zbin_adj = x->act_zbin_adj;
+
+
+
+    }
+    else if(x->last_zbin_over_quant != x->zbin_over_quant
+            || x->last_zbin_mode_boost != x->zbin_mode_boost
+            || x->last_act_zbin_adj != x->act_zbin_adj)
+    {
+        /* Y */
+        zbin_extra = ZBIN_EXTRA_Y;
+
+        for (i = 0; i < 16; i++)
+            x->block[i].zbin_extra = (short)zbin_extra;
+
+        /* UV */
+        zbin_extra = ZBIN_EXTRA_UV;
+
+        for (i = 16; i < 24; i++)
+            x->block[i].zbin_extra = (short)zbin_extra;
+
+        /* Y2 */
+        zbin_extra = ZBIN_EXTRA_Y2;
+        x->block[24].zbin_extra = (short)zbin_extra;
+
+        x->last_zbin_over_quant = x->zbin_over_quant;
+        x->last_zbin_mode_boost = x->zbin_mode_boost;
+        x->last_act_zbin_adj = x->act_zbin_adj;
+    }
+}
+
+void vp8_update_zbin_extra(VP8_COMP *cpi, MACROBLOCK *x)
+{
+    int i;
+    int QIndex = x->q_index;
+    int zbin_extra;
+
+    /* Y */
+    zbin_extra = ZBIN_EXTRA_Y;
+
+    for (i = 0; i < 16; i++)
+        x->block[i].zbin_extra = (short)zbin_extra;
+
+    /* UV */
+    zbin_extra = ZBIN_EXTRA_UV;
+
+    for (i = 16; i < 24; i++)
+        x->block[i].zbin_extra = (short)zbin_extra;
+
+    /* Y2 */
+    zbin_extra = ZBIN_EXTRA_Y2;
+    x->block[24].zbin_extra = (short)zbin_extra;
+}
+#undef ZBIN_EXTRA_Y
+#undef ZBIN_EXTRA_UV
+#undef ZBIN_EXTRA_Y2
+
+void vp8cx_frame_init_quantizer(VP8_COMP *cpi)
+{
+    /* Clear Zbin mode boost for default case */
+    cpi->mb.zbin_mode_boost = 0;
+
+    /* MB level quantizer setup */
+    vp8cx_mb_init_quantizer(cpi, &cpi->mb, 0);
+}
+
+
+void vp8_set_quantizer(struct VP8_COMP *cpi, int Q)
+{
+    VP8_COMMON *cm = &cpi->common;
+    MACROBLOCKD *mbd = &cpi->mb.e_mbd;
+    int update = 0;
+    int new_delta_q;
+    int new_uv_delta_q;
+    cm->base_qindex = Q;
+
+    /* if any of the delta_q values are changing update flag has to be set */
+    /* currently only y2dc_delta_q may change */
+
+    cm->y1dc_delta_q = 0;
+    cm->y2ac_delta_q = 0;
+
+    if (Q < 4)
+    {
+        new_delta_q = 4-Q;
+    }
+    else
+        new_delta_q = 0;
+
+    update |= cm->y2dc_delta_q != new_delta_q;
+    cm->y2dc_delta_q = new_delta_q;
+
+    new_uv_delta_q = 0;
+    // For screen content, lower the q value for UV channel. For now, select
+    // conservative delta; same delta for dc and ac, and decrease it with lower
+    // Q, and set to 0 below some threshold. May want to condition this in
+    // future on the variance/energy in UV channel.
+    if (cpi->oxcf.screen_content_mode && Q > 40) {
+      new_uv_delta_q = -(int)(0.15 * Q);
+      // Check range: magnitude of delta is 4 bits.
+      if (new_uv_delta_q < -15) {
+        new_uv_delta_q = -15;
+      }
+    }
+    update |= cm->uvdc_delta_q != new_uv_delta_q;
+    cm->uvdc_delta_q = new_uv_delta_q;
+    cm->uvac_delta_q = new_uv_delta_q;
+
+    /* Set Segment specific quatizers */
+    mbd->segment_feature_data[MB_LVL_ALT_Q][0] = cpi->segment_feature_data[MB_LVL_ALT_Q][0];
+    mbd->segment_feature_data[MB_LVL_ALT_Q][1] = cpi->segment_feature_data[MB_LVL_ALT_Q][1];
+    mbd->segment_feature_data[MB_LVL_ALT_Q][2] = cpi->segment_feature_data[MB_LVL_ALT_Q][2];
+    mbd->segment_feature_data[MB_LVL_ALT_Q][3] = cpi->segment_feature_data[MB_LVL_ALT_Q][3];
+
+    /* quantizer has to be reinitialized for any delta_q changes */
+    if(update)
+        vp8cx_init_quantizer(cpi);
+
+}
diff --git a/media/libvpx/vp8/encoder/quantize.h b/media/libvpx/vp8/encoder/quantize.h
new file mode 100644
index 000000000..7d36c2b45
--- /dev/null
+++ b/media/libvpx/vp8/encoder/quantize.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_QUANTIZE_H_
+#define VP8_ENCODER_QUANTIZE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct VP8_COMP;
+struct macroblock;
+extern void vp8_quantize_mb(struct macroblock *x);
+extern void vp8_quantize_mby(struct macroblock *x);
+extern void vp8_quantize_mbuv(struct macroblock *x);
+extern void vp8_set_quantizer(struct VP8_COMP *cpi, int Q);
+extern void vp8cx_frame_init_quantizer(struct VP8_COMP *cpi);
+extern void vp8_update_zbin_extra(struct VP8_COMP *cpi, struct macroblock *x);
+extern void vp8cx_mb_init_quantizer(struct VP8_COMP *cpi, struct macroblock *x, int ok_to_skip);
+extern void vp8cx_init_quantizer(struct VP8_COMP *cpi);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_QUANTIZE_H_
diff --git a/media/libvpx/vp8/encoder/ratectrl.c b/media/libvpx/vp8/encoder/ratectrl.c
new file mode 100644
index 000000000..e8796a1fc
--- /dev/null
+++ b/media/libvpx/vp8/encoder/ratectrl.c
@@ -0,0 +1,1609 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <assert.h>
+
+#include "math.h"
+#include "vp8/common/common.h"
+#include "ratectrl.h"
+#include "vp8/common/entropymode.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/systemdependent.h"
+#include "encodemv.h"
+
+
+#define MIN_BPB_FACTOR          0.01
+#define MAX_BPB_FACTOR          50
+
+extern const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES];
+
+
+
+#ifdef MODE_STATS
+extern int y_modes[5];
+extern int uv_modes[4];
+extern int b_modes[10];
+
+extern int inter_y_modes[10];
+extern int inter_uv_modes[4];
+extern int inter_b_modes[10];
+#endif
+
+/* Bits Per MB at different Q (Multiplied by 512) */
+#define BPER_MB_NORMBITS    9
+
+/* Work in progress recalibration of baseline rate tables based on
+ * the assumption that bits per mb is inversely proportional to the
+ * quantizer value.
+ */
+const int vp8_bits_per_mb[2][QINDEX_RANGE] =
+{
+    /* Intra case 450000/Qintra */
+    {
+        1125000,900000, 750000, 642857, 562500, 500000, 450000, 450000,
+        409090, 375000, 346153, 321428, 300000, 281250, 264705, 264705,
+        250000, 236842, 225000, 225000, 214285, 214285, 204545, 204545,
+        195652, 195652, 187500, 180000, 180000, 173076, 166666, 160714,
+        155172, 150000, 145161, 140625, 136363, 132352, 128571, 125000,
+        121621, 121621, 118421, 115384, 112500, 109756, 107142, 104651,
+        102272, 100000, 97826,  97826,  95744,  93750,  91836,  90000,
+        88235,  86538,  84905,  83333,  81818,  80357,  78947,  77586,
+        76271,  75000,  73770,  72580,  71428,  70312,  69230,  68181,
+        67164,  66176,  65217,  64285,  63380,  62500,  61643,  60810,
+        60000,  59210,  59210,  58441,  57692,  56962,  56250,  55555,
+        54878,  54216,  53571,  52941,  52325,  51724,  51136,  50561,
+        49450,  48387,  47368,  46875,  45918,  45000,  44554,  44117,
+        43269,  42452,  41666,  40909,  40178,  39473,  38793,  38135,
+        36885,  36290,  35714,  35156,  34615,  34090,  33582,  33088,
+        32608,  32142,  31468,  31034,  30405,  29801,  29220,  28662,
+    },
+    /* Inter case 285000/Qinter */
+    {
+        712500, 570000, 475000, 407142, 356250, 316666, 285000, 259090,
+        237500, 219230, 203571, 190000, 178125, 167647, 158333, 150000,
+        142500, 135714, 129545, 123913, 118750, 114000, 109615, 105555,
+        101785, 98275,  95000,  91935,  89062,  86363,  83823,  81428,
+        79166,  77027,  75000,  73076,  71250,  69512,  67857,  66279,
+        64772,  63333,  61956,  60638,  59375,  58163,  57000,  55882,
+        54807,  53773,  52777,  51818,  50892,  50000,  49137,  47500,
+        45967,  44531,  43181,  41911,  40714,  39583,  38513,  37500,
+        36538,  35625,  34756,  33928,  33139,  32386,  31666,  30978,
+        30319,  29687,  29081,  28500,  27941,  27403,  26886,  26388,
+        25909,  25446,  25000,  24568,  23949,  23360,  22800,  22265,
+        21755,  21268,  20802,  20357,  19930,  19520,  19127,  18750,
+        18387,  18037,  17701,  17378,  17065,  16764,  16473,  16101,
+        15745,  15405,  15079,  14766,  14467,  14179,  13902,  13636,
+        13380,  13133,  12895,  12666,  12445,  12179,  11924,  11632,
+        11445,  11220,  11003,  10795,  10594,  10401,  10215,  10035,
+    }
+};
+
+static const int kf_boost_qadjustment[QINDEX_RANGE] =
+{
+    128, 129, 130, 131, 132, 133, 134, 135,
+    136, 137, 138, 139, 140, 141, 142, 143,
+    144, 145, 146, 147, 148, 149, 150, 151,
+    152, 153, 154, 155, 156, 157, 158, 159,
+    160, 161, 162, 163, 164, 165, 166, 167,
+    168, 169, 170, 171, 172, 173, 174, 175,
+    176, 177, 178, 179, 180, 181, 182, 183,
+    184, 185, 186, 187, 188, 189, 190, 191,
+    192, 193, 194, 195, 196, 197, 198, 199,
+    200, 200, 201, 201, 202, 203, 203, 203,
+    204, 204, 205, 205, 206, 206, 207, 207,
+    208, 208, 209, 209, 210, 210, 211, 211,
+    212, 212, 213, 213, 214, 214, 215, 215,
+    216, 216, 217, 217, 218, 218, 219, 219,
+    220, 220, 220, 220, 220, 220, 220, 220,
+    220, 220, 220, 220, 220, 220, 220, 220,
+};
+
+/* #define GFQ_ADJUSTMENT (Q+100) */
+#define GFQ_ADJUSTMENT vp8_gf_boost_qadjustment[Q]
+const int vp8_gf_boost_qadjustment[QINDEX_RANGE] =
+{
+    80, 82, 84, 86, 88, 90, 92, 94,
+    96, 97, 98, 99, 100, 101, 102, 103,
+    104, 105, 106, 107, 108, 109, 110, 111,
+    112, 113, 114, 115, 116, 117, 118, 119,
+    120, 121, 122, 123, 124, 125, 126, 127,
+    128, 129, 130, 131, 132, 133, 134, 135,
+    136, 137, 138, 139, 140, 141, 142, 143,
+    144, 145, 146, 147, 148, 149, 150, 151,
+    152, 153, 154, 155, 156, 157, 158, 159,
+    160, 161, 162, 163, 164, 165, 166, 167,
+    168, 169, 170, 171, 172, 173, 174, 175,
+    176, 177, 178, 179, 180, 181, 182, 183,
+    184, 184, 185, 185, 186, 186, 187, 187,
+    188, 188, 189, 189, 190, 190, 191, 191,
+    192, 192, 193, 193, 194, 194, 194, 194,
+    195, 195, 196, 196, 197, 197, 198, 198
+};
+
+/*
+const int vp8_gf_boost_qadjustment[QINDEX_RANGE] =
+{
+    100,101,102,103,104,105,105,106,
+    106,107,107,108,109,109,110,111,
+    112,113,114,115,116,117,118,119,
+    120,121,122,123,124,125,126,127,
+    128,129,130,131,132,133,134,135,
+    136,137,138,139,140,141,142,143,
+    144,145,146,147,148,149,150,151,
+    152,153,154,155,156,157,158,159,
+    160,161,162,163,164,165,166,167,
+    168,169,170,170,171,171,172,172,
+    173,173,173,174,174,174,175,175,
+    175,176,176,176,177,177,177,177,
+    178,178,179,179,180,180,181,181,
+    182,182,183,183,184,184,185,185,
+    186,186,187,187,188,188,189,189,
+    190,190,191,191,192,192,193,193,
+};
+*/
+
+static const int kf_gf_boost_qlimits[QINDEX_RANGE] =
+{
+    150, 155, 160, 165, 170, 175, 180, 185,
+    190, 195, 200, 205, 210, 215, 220, 225,
+    230, 235, 240, 245, 250, 255, 260, 265,
+    270, 275, 280, 285, 290, 295, 300, 305,
+    310, 320, 330, 340, 350, 360, 370, 380,
+    390, 400, 410, 420, 430, 440, 450, 460,
+    470, 480, 490, 500, 510, 520, 530, 540,
+    550, 560, 570, 580, 590, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+    600, 600, 600, 600, 600, 600, 600, 600,
+};
+
+static const int gf_adjust_table[101] =
+{
+    100,
+    115, 130, 145, 160, 175, 190, 200, 210, 220, 230,
+    240, 260, 270, 280, 290, 300, 310, 320, 330, 340,
+    350, 360, 370, 380, 390, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
+};
+
+static const int gf_intra_usage_adjustment[20] =
+{
+    125, 120, 115, 110, 105, 100,  95,  85,  80,  75,
+    70,  65,  60,  55,  50,  50,  50,  50,  50,  50,
+};
+
+static const int gf_interval_table[101] =
+{
+    7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+};
+
+static const unsigned int prior_key_frame_weight[KEY_FRAME_CONTEXT] = { 1, 2, 3, 4, 5 };
+
+
+void vp8_save_coding_context(VP8_COMP *cpi)
+{
+    CODING_CONTEXT *const cc = & cpi->coding_context;
+
+    /* Stores a snapshot of key state variables which can subsequently be
+     * restored with a call to vp8_restore_coding_context. These functions are
+     * intended for use in a re-code loop in vp8_compress_frame where the
+     * quantizer value is adjusted between loop iterations.
+     */
+
+    cc->frames_since_key          = cpi->frames_since_key;
+    cc->filter_level             = cpi->common.filter_level;
+    cc->frames_till_gf_update_due   = cpi->frames_till_gf_update_due;
+    cc->frames_since_golden       = cpi->frames_since_golden;
+
+    vp8_copy(cc->mvc,      cpi->common.fc.mvc);
+    vp8_copy(cc->mvcosts,  cpi->rd_costs.mvcosts);
+
+    vp8_copy(cc->ymode_prob,   cpi->common.fc.ymode_prob);
+    vp8_copy(cc->uv_mode_prob,  cpi->common.fc.uv_mode_prob);
+
+    vp8_copy(cc->ymode_count, cpi->mb.ymode_count);
+    vp8_copy(cc->uv_mode_count, cpi->mb.uv_mode_count);
+
+
+    /* Stats */
+#ifdef MODE_STATS
+    vp8_copy(cc->y_modes,       y_modes);
+    vp8_copy(cc->uv_modes,      uv_modes);
+    vp8_copy(cc->b_modes,       b_modes);
+    vp8_copy(cc->inter_y_modes,  inter_y_modes);
+    vp8_copy(cc->inter_uv_modes, inter_uv_modes);
+    vp8_copy(cc->inter_b_modes,  inter_b_modes);
+#endif
+
+    cc->this_frame_percent_intra = cpi->this_frame_percent_intra;
+}
+
+
+void vp8_restore_coding_context(VP8_COMP *cpi)
+{
+    CODING_CONTEXT *const cc = & cpi->coding_context;
+
+    /* Restore key state variables to the snapshot state stored in the
+     * previous call to vp8_save_coding_context.
+     */
+
+    cpi->frames_since_key         =   cc->frames_since_key;
+    cpi->common.filter_level     =   cc->filter_level;
+    cpi->frames_till_gf_update_due  =   cc->frames_till_gf_update_due;
+    cpi->frames_since_golden       =   cc->frames_since_golden;
+
+    vp8_copy(cpi->common.fc.mvc, cc->mvc);
+
+    vp8_copy(cpi->rd_costs.mvcosts, cc->mvcosts);
+
+    vp8_copy(cpi->common.fc.ymode_prob,   cc->ymode_prob);
+    vp8_copy(cpi->common.fc.uv_mode_prob,  cc->uv_mode_prob);
+
+    vp8_copy(cpi->mb.ymode_count, cc->ymode_count);
+    vp8_copy(cpi->mb.uv_mode_count, cc->uv_mode_count);
+
+    /* Stats */
+#ifdef MODE_STATS
+    vp8_copy(y_modes, cc->y_modes);
+    vp8_copy(uv_modes, cc->uv_modes);
+    vp8_copy(b_modes, cc->b_modes);
+    vp8_copy(inter_y_modes, cc->inter_y_modes);
+    vp8_copy(inter_uv_modes, cc->inter_uv_modes);
+    vp8_copy(inter_b_modes, cc->inter_b_modes);
+#endif
+
+
+    cpi->this_frame_percent_intra = cc->this_frame_percent_intra;
+}
+
+
+void vp8_setup_key_frame(VP8_COMP *cpi)
+{
+    /* Setup for Key frame: */
+
+    vp8_default_coef_probs(& cpi->common);
+
+    memcpy(cpi->common.fc.mvc, vp8_default_mv_context, sizeof(vp8_default_mv_context));
+    {
+        int flag[2] = {1, 1};
+        vp8_build_component_cost_table(cpi->mb.mvcost, (const MV_CONTEXT *) cpi->common.fc.mvc, flag);
+    }
+
+    /* Make sure we initialize separate contexts for altref,gold, and normal.
+     * TODO shouldn't need 3 different copies of structure to do this!
+     */
+    memcpy(&cpi->lfc_a, &cpi->common.fc, sizeof(cpi->common.fc));
+    memcpy(&cpi->lfc_g, &cpi->common.fc, sizeof(cpi->common.fc));
+    memcpy(&cpi->lfc_n, &cpi->common.fc, sizeof(cpi->common.fc));
+
+    cpi->common.filter_level = cpi->common.base_qindex * 3 / 8 ;
+
+    /* Provisional interval before next GF */
+    if (cpi->auto_gold)
+        cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+    else
+        cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
+
+    cpi->common.refresh_golden_frame = 1;
+    cpi->common.refresh_alt_ref_frame = 1;
+}
+
+
+static int estimate_bits_at_q(int frame_kind, int Q, int MBs,
+                              double correction_factor)
+{
+    int Bpm = (int)(.5 + correction_factor * vp8_bits_per_mb[frame_kind][Q]);
+
+    /* Attempt to retain reasonable accuracy without overflow. The cutoff is
+     * chosen such that the maximum product of Bpm and MBs fits 31 bits. The
+     * largest Bpm takes 20 bits.
+     */
+    if (MBs > (1 << 11))
+        return (Bpm >> BPER_MB_NORMBITS) * MBs;
+    else
+        return (Bpm * MBs) >> BPER_MB_NORMBITS;
+}
+
+
+static void calc_iframe_target_size(VP8_COMP *cpi)
+{
+    /* boost defaults to half second */
+    int kf_boost;
+    uint64_t target;
+
+    /* Clear down mmx registers to allow floating point in what follows */
+    vp8_clear_system_state();
+
+    if (cpi->oxcf.fixed_q >= 0)
+    {
+        int Q = cpi->oxcf.key_q;
+
+        target = estimate_bits_at_q(INTRA_FRAME, Q, cpi->common.MBs,
+                                    cpi->key_frame_rate_correction_factor);
+    }
+    else if (cpi->pass == 2)
+    {
+        /* New Two pass RC */
+        target = cpi->per_frame_bandwidth;
+    }
+    /* First Frame is a special case */
+    else if (cpi->common.current_video_frame == 0)
+    {
+        /* 1 Pass there is no information on which to base size so use
+         * bandwidth per second * fraction of the initial buffer
+         * level
+         */
+        target = cpi->oxcf.starting_buffer_level / 2;
+
+        if(target > cpi->oxcf.target_bandwidth * 3 / 2)
+            target = cpi->oxcf.target_bandwidth * 3 / 2;
+    }
+    else
+    {
+        /* if this keyframe was forced, use a more recent Q estimate */
+        int Q = (cpi->common.frame_flags & FRAMEFLAGS_KEY)
+                ? cpi->avg_frame_qindex : cpi->ni_av_qi;
+
+        int initial_boost = 32; /* |3.0 * per_frame_bandwidth| */
+        /* Boost depends somewhat on frame rate: only used for 1 layer case. */
+        if (cpi->oxcf.number_of_layers == 1) {
+          kf_boost = MAX(initial_boost, (int)(2 * cpi->output_framerate - 16));
+        }
+        else {
+          /* Initial factor: set target size to: |3.0 * per_frame_bandwidth|. */
+          kf_boost = initial_boost;
+        }
+
+        /* adjustment up based on q: this factor ranges from ~1.2 to 2.2. */
+        kf_boost = kf_boost * kf_boost_qadjustment[Q] / 100;
+
+        /* frame separation adjustment ( down) */
+        if (cpi->frames_since_key  < cpi->output_framerate / 2)
+            kf_boost = (int)(kf_boost
+                       * cpi->frames_since_key / (cpi->output_framerate / 2));
+
+        /* Minimal target size is |2* per_frame_bandwidth|. */
+        if (kf_boost < 16)
+            kf_boost = 16;
+
+        target = ((16 + kf_boost) * cpi->per_frame_bandwidth) >> 4;
+    }
+
+
+    if (cpi->oxcf.rc_max_intra_bitrate_pct)
+    {
+        unsigned int max_rate = cpi->per_frame_bandwidth
+                                * cpi->oxcf.rc_max_intra_bitrate_pct / 100;
+
+        if (target > max_rate)
+            target = max_rate;
+    }
+
+    cpi->this_frame_target = (int)target;
+
+    /* TODO: if we separate rate targeting from Q targetting, move this.
+     * Reset the active worst quality to the baseline value for key frames.
+     */
+    if (cpi->pass != 2)
+        cpi->active_worst_quality = cpi->worst_quality;
+
+#if 0
+    {
+        FILE *f;
+
+        f = fopen("kf_boost.stt", "a");
+        fprintf(f, " %8u %10d %10d %10d\n",
+                cpi->common.current_video_frame,  cpi->gfu_boost, cpi->baseline_gf_interval, cpi->source_alt_ref_pending);
+
+        fclose(f);
+    }
+#endif
+}
+
+
+/* Do the best we can to define the parameters for the next GF based on what
+ * information we have available.
+ */
+static void calc_gf_params(VP8_COMP *cpi)
+{
+    int Q = (cpi->oxcf.fixed_q < 0) ? cpi->last_q[INTER_FRAME] : cpi->oxcf.fixed_q;
+    int Boost = 0;
+
+    int gf_frame_useage = 0;      /* Golden frame useage since last GF */
+    int tot_mbs = cpi->recent_ref_frame_usage[INTRA_FRAME]  +
+                  cpi->recent_ref_frame_usage[LAST_FRAME]   +
+                  cpi->recent_ref_frame_usage[GOLDEN_FRAME] +
+                  cpi->recent_ref_frame_usage[ALTREF_FRAME];
+
+    int pct_gf_active = (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols);
+
+    if (tot_mbs)
+        gf_frame_useage = (cpi->recent_ref_frame_usage[GOLDEN_FRAME] + cpi->recent_ref_frame_usage[ALTREF_FRAME]) * 100 / tot_mbs;
+
+    if (pct_gf_active > gf_frame_useage)
+        gf_frame_useage = pct_gf_active;
+
+    /* Not two pass */
+    if (cpi->pass != 2)
+    {
+        /* Single Pass lagged mode: TBD */
+        if (0)
+        {
+        }
+
+        /* Single Pass compression: Has to use current and historical data */
+        else
+        {
+#if 0
+            /* Experimental code */
+            int index = cpi->one_pass_frame_index;
+            int frames_to_scan = (cpi->max_gf_interval <= MAX_LAG_BUFFERS) ? cpi->max_gf_interval : MAX_LAG_BUFFERS;
+
+            /* ************** Experimental code - incomplete */
+            /*
+            double decay_val = 1.0;
+            double IIAccumulator = 0.0;
+            double last_iiaccumulator = 0.0;
+            double IIRatio;
+
+            cpi->one_pass_frame_index = cpi->common.current_video_frame%MAX_LAG_BUFFERS;
+
+            for ( i = 0; i < (frames_to_scan - 1); i++ )
+            {
+                if ( index < 0 )
+                    index = MAX_LAG_BUFFERS;
+                index --;
+
+                if ( cpi->one_pass_frame_stats[index].frame_coded_error > 0.0 )
+                {
+                    IIRatio = cpi->one_pass_frame_stats[index].frame_intra_error / cpi->one_pass_frame_stats[index].frame_coded_error;
+
+                    if ( IIRatio > 30.0 )
+                        IIRatio = 30.0;
+                }
+                else
+                    IIRatio = 30.0;
+
+                IIAccumulator += IIRatio * decay_val;
+
+                decay_val = decay_val * cpi->one_pass_frame_stats[index].frame_pcnt_inter;
+
+                if (    (i > MIN_GF_INTERVAL) &&
+                        ((IIAccumulator - last_iiaccumulator) < 2.0) )
+                {
+                    break;
+                }
+                last_iiaccumulator = IIAccumulator;
+            }
+
+            Boost = IIAccumulator*100.0/16.0;
+            cpi->baseline_gf_interval = i;
+
+            */
+#else
+
+            /*************************************************************/
+            /* OLD code */
+
+            /* Adjust boost based upon ambient Q */
+            Boost = GFQ_ADJUSTMENT;
+
+            /* Adjust based upon most recently measure intra useage */
+            Boost = Boost * gf_intra_usage_adjustment[(cpi->this_frame_percent_intra < 15) ? cpi->this_frame_percent_intra : 14] / 100;
+
+            /* Adjust gf boost based upon GF usage since last GF */
+            Boost = Boost * gf_adjust_table[gf_frame_useage] / 100;
+#endif
+        }
+
+        /* golden frame boost without recode loop often goes awry.  be
+         * safe by keeping numbers down.
+         */
+        if (!cpi->sf.recode_loop)
+        {
+            if (cpi->compressor_speed == 2)
+                Boost = Boost / 2;
+        }
+
+        /* Apply an upper limit based on Q for 1 pass encodes */
+        if (Boost > kf_gf_boost_qlimits[Q] && (cpi->pass == 0))
+            Boost = kf_gf_boost_qlimits[Q];
+
+        /* Apply lower limits to boost. */
+        else if (Boost < 110)
+            Boost = 110;
+
+        /* Note the boost used */
+        cpi->last_boost = Boost;
+
+    }
+
+    /* Estimate next interval
+     * This is updated once the real frame size/boost is known.
+     */
+    if (cpi->oxcf.fixed_q == -1)
+    {
+        if (cpi->pass == 2)         /* 2 Pass */
+        {
+            cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+        }
+        else                            /* 1 Pass */
+        {
+            cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+
+            if (cpi->last_boost > 750)
+                cpi->frames_till_gf_update_due++;
+
+            if (cpi->last_boost > 1000)
+                cpi->frames_till_gf_update_due++;
+
+            if (cpi->last_boost > 1250)
+                cpi->frames_till_gf_update_due++;
+
+            if (cpi->last_boost >= 1500)
+                cpi->frames_till_gf_update_due ++;
+
+            if (gf_interval_table[gf_frame_useage] > cpi->frames_till_gf_update_due)
+                cpi->frames_till_gf_update_due = gf_interval_table[gf_frame_useage];
+
+            if (cpi->frames_till_gf_update_due > cpi->max_gf_interval)
+                cpi->frames_till_gf_update_due = cpi->max_gf_interval;
+        }
+    }
+    else
+        cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
+
+    /* ARF on or off */
+    if (cpi->pass != 2)
+    {
+        /* For now Alt ref is not allowed except in 2 pass modes. */
+        cpi->source_alt_ref_pending = 0;
+
+        /*if ( cpi->oxcf.fixed_q == -1)
+        {
+            if ( cpi->oxcf.play_alternate && (cpi->last_boost > (100 + (AF_THRESH*cpi->frames_till_gf_update_due)) ) )
+                cpi->source_alt_ref_pending = 1;
+            else
+                cpi->source_alt_ref_pending = 0;
+        }*/
+    }
+}
+
+
+static void calc_pframe_target_size(VP8_COMP *cpi)
+{
+    int min_frame_target;
+    int old_per_frame_bandwidth = cpi->per_frame_bandwidth;
+
+    if ( cpi->current_layer > 0)
+        cpi->per_frame_bandwidth =
+            cpi->layer_context[cpi->current_layer].avg_frame_size_for_layer;
+
+    min_frame_target = 0;
+
+    if (cpi->pass == 2)
+    {
+        min_frame_target = cpi->min_frame_bandwidth;
+
+        if (min_frame_target < (cpi->av_per_frame_bandwidth >> 5))
+            min_frame_target = cpi->av_per_frame_bandwidth >> 5;
+    }
+    else if (min_frame_target < cpi->per_frame_bandwidth / 4)
+        min_frame_target = cpi->per_frame_bandwidth / 4;
+
+
+    /* Special alt reference frame case */
+    if((cpi->common.refresh_alt_ref_frame) && (cpi->oxcf.number_of_layers == 1))
+    {
+        if (cpi->pass == 2)
+        {
+            /* Per frame bit target for the alt ref frame */
+            cpi->per_frame_bandwidth = cpi->twopass.gf_bits;
+            cpi->this_frame_target = cpi->per_frame_bandwidth;
+        }
+
+        /* One Pass ??? TBD */
+    }
+
+    /* Normal frames (gf,and inter) */
+    else
+    {
+        /* 2 pass */
+        if (cpi->pass == 2)
+        {
+            cpi->this_frame_target = cpi->per_frame_bandwidth;
+        }
+        /* 1 pass */
+        else
+        {
+            int Adjustment;
+            /* Make rate adjustment to recover bits spent in key frame
+             * Test to see if the key frame inter data rate correction
+             * should still be in force
+             */
+            if (cpi->kf_overspend_bits > 0)
+            {
+                Adjustment = (cpi->kf_bitrate_adjustment <= cpi->kf_overspend_bits) ? cpi->kf_bitrate_adjustment : cpi->kf_overspend_bits;
+
+                if (Adjustment > (cpi->per_frame_bandwidth - min_frame_target))
+                    Adjustment = (cpi->per_frame_bandwidth - min_frame_target);
+
+                cpi->kf_overspend_bits -= Adjustment;
+
+                /* Calculate an inter frame bandwidth target for the next
+                 * few frames designed to recover any extra bits spent on
+                 * the key frame.
+                 */
+                cpi->this_frame_target = cpi->per_frame_bandwidth - Adjustment;
+
+                if (cpi->this_frame_target < min_frame_target)
+                    cpi->this_frame_target = min_frame_target;
+            }
+            else
+                cpi->this_frame_target = cpi->per_frame_bandwidth;
+
+            /* If appropriate make an adjustment to recover bits spent on a
+             * recent GF
+             */
+            if ((cpi->gf_overspend_bits > 0) && (cpi->this_frame_target > min_frame_target))
+            {
+                Adjustment = (cpi->non_gf_bitrate_adjustment <= cpi->gf_overspend_bits) ? cpi->non_gf_bitrate_adjustment : cpi->gf_overspend_bits;
+
+                if (Adjustment > (cpi->this_frame_target - min_frame_target))
+                    Adjustment = (cpi->this_frame_target - min_frame_target);
+
+                cpi->gf_overspend_bits -= Adjustment;
+                cpi->this_frame_target -= Adjustment;
+            }
+
+            /* Apply small + and - boosts for non gf frames */
+            if ((cpi->last_boost > 150) && (cpi->frames_till_gf_update_due > 0) &&
+                (cpi->current_gf_interval >= (MIN_GF_INTERVAL << 1)))
+            {
+                /* % Adjustment limited to the range 1% to 10% */
+                Adjustment = (cpi->last_boost - 100) >> 5;
+
+                if (Adjustment < 1)
+                    Adjustment = 1;
+                else if (Adjustment > 10)
+                    Adjustment = 10;
+
+                /* Convert to bits */
+                Adjustment = (cpi->this_frame_target * Adjustment) / 100;
+
+                if (Adjustment > (cpi->this_frame_target - min_frame_target))
+                    Adjustment = (cpi->this_frame_target - min_frame_target);
+
+                if (cpi->frames_since_golden == (cpi->current_gf_interval >> 1))
+                {
+                    Adjustment = (cpi->current_gf_interval - 1) * Adjustment;
+                    // Limit adjustment to 10% of current target.
+                    if (Adjustment > (10 * cpi->this_frame_target) / 100)
+                        Adjustment = (10 * cpi->this_frame_target) / 100;
+                    cpi->this_frame_target += Adjustment;
+                }
+                else
+                    cpi->this_frame_target -= Adjustment;
+            }
+        }
+    }
+
+    /* Sanity check that the total sum of adjustments is not above the
+     * maximum allowed That is that having allowed for KF and GF penalties
+     * we have not pushed the current interframe target to low. If the
+     * adjustment we apply here is not capable of recovering all the extra
+     * bits we have spent in the KF or GF then the remainder will have to
+     * be recovered over a longer time span via other buffer / rate control
+     * mechanisms.
+     */
+    if (cpi->this_frame_target < min_frame_target)
+        cpi->this_frame_target = min_frame_target;
+
+    if (!cpi->common.refresh_alt_ref_frame)
+        /* Note the baseline target data rate for this inter frame. */
+        cpi->inter_frame_target = cpi->this_frame_target;
+
+    /* One Pass specific code */
+    if (cpi->pass == 0)
+    {
+        /* Adapt target frame size with respect to any buffering constraints: */
+        if (cpi->buffered_mode)
+        {
+            int one_percent_bits = (int)
+                (1 + cpi->oxcf.optimal_buffer_level / 100);
+
+            if ((cpi->buffer_level < cpi->oxcf.optimal_buffer_level) ||
+                (cpi->bits_off_target < cpi->oxcf.optimal_buffer_level))
+            {
+                int percent_low = 0;
+
+                /* Decide whether or not we need to adjust the frame data
+                 * rate target.
+                 *
+                 * If we are are below the optimal buffer fullness level
+                 * and adherence to buffering constraints is important to
+                 * the end usage then adjust the per frame target.
+                 */
+                if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
+                    (cpi->buffer_level < cpi->oxcf.optimal_buffer_level))
+                {
+                    percent_low = (int)
+                        ((cpi->oxcf.optimal_buffer_level - cpi->buffer_level) /
+                        one_percent_bits);
+                }
+                /* Are we overshooting the long term clip data rate... */
+                else if (cpi->bits_off_target < 0)
+                {
+                    /* Adjust per frame data target downwards to compensate. */
+                    percent_low = (int)(100 * -cpi->bits_off_target /
+                                       (cpi->total_byte_count * 8));
+                }
+
+                if (percent_low > cpi->oxcf.under_shoot_pct)
+                    percent_low = cpi->oxcf.under_shoot_pct;
+                else if (percent_low < 0)
+                    percent_low = 0;
+
+                /* lower the target bandwidth for this frame. */
+                cpi->this_frame_target -=
+                        (cpi->this_frame_target * percent_low) / 200;
+
+                /* Are we using allowing control of active_worst_allowed_q
+                 * according to buffer level.
+                 */
+                if (cpi->auto_worst_q && cpi->ni_frames > 150)
+                {
+                    int64_t critical_buffer_level;
+
+                    /* For streaming applications the most important factor is
+                     * cpi->buffer_level as this takes into account the
+                     * specified short term buffering constraints. However,
+                     * hitting the long term clip data rate target is also
+                     * important.
+                     */
+                    if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+                    {
+                        /* Take the smaller of cpi->buffer_level and
+                         * cpi->bits_off_target
+                         */
+                        critical_buffer_level =
+                            (cpi->buffer_level < cpi->bits_off_target)
+                            ? cpi->buffer_level : cpi->bits_off_target;
+                    }
+                    /* For local file playback short term buffering constraints
+                     * are less of an issue
+                     */
+                    else
+                    {
+                        /* Consider only how we are doing for the clip as a
+                         * whole
+                         */
+                        critical_buffer_level = cpi->bits_off_target;
+                    }
+
+                    /* Set the active worst quality based upon the selected
+                     * buffer fullness number.
+                     */
+                    if (critical_buffer_level < cpi->oxcf.optimal_buffer_level)
+                    {
+                        if ( critical_buffer_level >
+                             (cpi->oxcf.optimal_buffer_level >> 2) )
+                        {
+                            int64_t qadjustment_range =
+                                      cpi->worst_quality - cpi->ni_av_qi;
+                            int64_t above_base =
+                                      (critical_buffer_level -
+                                       (cpi->oxcf.optimal_buffer_level >> 2));
+
+                            /* Step active worst quality down from
+                             * cpi->ni_av_qi when (critical_buffer_level ==
+                             * cpi->optimal_buffer_level) to
+                             * cpi->worst_quality when
+                             * (critical_buffer_level ==
+                             *     cpi->optimal_buffer_level >> 2)
+                             */
+                            cpi->active_worst_quality =
+                                cpi->worst_quality -
+                                (int)((qadjustment_range * above_base) /
+                                 (cpi->oxcf.optimal_buffer_level*3>>2));
+                        }
+                        else
+                        {
+                            cpi->active_worst_quality = cpi->worst_quality;
+                        }
+                    }
+                    else
+                    {
+                        cpi->active_worst_quality = cpi->ni_av_qi;
+                    }
+                }
+                else
+                {
+                    cpi->active_worst_quality = cpi->worst_quality;
+                }
+            }
+            else
+            {
+                int percent_high = 0;
+
+                if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+                     && (cpi->buffer_level > cpi->oxcf.optimal_buffer_level))
+                {
+                    percent_high = (int)((cpi->buffer_level
+                                    - cpi->oxcf.optimal_buffer_level)
+                                   / one_percent_bits);
+                }
+                else if (cpi->bits_off_target > cpi->oxcf.optimal_buffer_level)
+                {
+                    percent_high = (int)((100 * cpi->bits_off_target)
+                                         / (cpi->total_byte_count * 8));
+                }
+
+                if (percent_high > cpi->oxcf.over_shoot_pct)
+                    percent_high = cpi->oxcf.over_shoot_pct;
+                else if (percent_high < 0)
+                    percent_high = 0;
+
+                cpi->this_frame_target += (cpi->this_frame_target *
+                                          percent_high) / 200;
+
+                /* Are we allowing control of active_worst_allowed_q according
+                 * to buffer level.
+                 */
+                if (cpi->auto_worst_q && cpi->ni_frames > 150)
+                {
+                    /* When using the relaxed buffer model stick to the
+                     * user specified value
+                     */
+                    cpi->active_worst_quality = cpi->ni_av_qi;
+                }
+                else
+                {
+                    cpi->active_worst_quality = cpi->worst_quality;
+                }
+            }
+
+            /* Set active_best_quality to prevent quality rising too high */
+            cpi->active_best_quality = cpi->best_quality;
+
+            /* Worst quality obviously must not be better than best quality */
+            if (cpi->active_worst_quality <= cpi->active_best_quality)
+                cpi->active_worst_quality = cpi->active_best_quality + 1;
+
+            if(cpi->active_worst_quality > 127)
+                cpi->active_worst_quality = 127;
+        }
+        /* Unbuffered mode (eg. video conferencing) */
+        else
+        {
+            /* Set the active worst quality */
+            cpi->active_worst_quality = cpi->worst_quality;
+        }
+
+        /* Special trap for constrained quality mode
+         * "active_worst_quality" may never drop below cq level
+         * for any frame type.
+         */
+        if ( cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY &&
+             cpi->active_worst_quality < cpi->cq_target_quality)
+        {
+            cpi->active_worst_quality = cpi->cq_target_quality;
+        }
+    }
+
+    /* Test to see if we have to drop a frame
+     * The auto-drop frame code is only used in buffered mode.
+     * In unbufferd mode (eg vide conferencing) the descision to
+     * code or drop a frame is made outside the codec in response to real
+     * world comms or buffer considerations.
+     */
+    if (cpi->drop_frames_allowed &&
+        (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
+        ((cpi->common.frame_type != KEY_FRAME)))
+    {
+        /* Check for a buffer underun-crisis in which case we have to drop
+         * a frame
+         */
+        if ((cpi->buffer_level < 0))
+        {
+#if 0
+            FILE *f = fopen("dec.stt", "a");
+            fprintf(f, "%10d %10d %10d %10d ***** BUFFER EMPTY\n",
+                    (int) cpi->common.current_video_frame,
+                    cpi->decimation_factor, cpi->common.horiz_scale,
+                    (cpi->buffer_level * 100) / cpi->oxcf.optimal_buffer_level);
+            fclose(f);
+#endif
+            cpi->drop_frame = 1;
+
+            /* Update the buffer level variable. */
+            cpi->bits_off_target += cpi->av_per_frame_bandwidth;
+            if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
+              cpi->bits_off_target = (int)cpi->oxcf.maximum_buffer_size;
+            cpi->buffer_level = cpi->bits_off_target;
+
+            if (cpi->oxcf.number_of_layers > 1) {
+              unsigned int i;
+
+              // Propagate bits saved by dropping the frame to higher layers.
+              for (i = cpi->current_layer + 1; i < cpi->oxcf.number_of_layers;
+                  i++) {
+                LAYER_CONTEXT *lc = &cpi->layer_context[i];
+                lc->bits_off_target += (int)(lc->target_bandwidth /
+                                             lc->framerate);
+                if (lc->bits_off_target > lc->maximum_buffer_size)
+                  lc->bits_off_target = lc->maximum_buffer_size;
+                lc->buffer_level = lc->bits_off_target;
+              }
+            }
+        }
+    }
+
+    /* Adjust target frame size for Golden Frames: */
+    if (cpi->oxcf.error_resilient_mode == 0 &&
+        (cpi->frames_till_gf_update_due == 0) && !cpi->drop_frame)
+    {
+        int Q = (cpi->oxcf.fixed_q < 0) ? cpi->last_q[INTER_FRAME] : cpi->oxcf.fixed_q;
+
+        int gf_frame_useage = 0;      /* Golden frame useage since last GF */
+        int tot_mbs = cpi->recent_ref_frame_usage[INTRA_FRAME]  +
+                      cpi->recent_ref_frame_usage[LAST_FRAME]   +
+                      cpi->recent_ref_frame_usage[GOLDEN_FRAME] +
+                      cpi->recent_ref_frame_usage[ALTREF_FRAME];
+
+        int pct_gf_active = (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols);
+
+        if (tot_mbs)
+            gf_frame_useage = (cpi->recent_ref_frame_usage[GOLDEN_FRAME] + cpi->recent_ref_frame_usage[ALTREF_FRAME]) * 100 / tot_mbs;
+
+        if (pct_gf_active > gf_frame_useage)
+            gf_frame_useage = pct_gf_active;
+
+        /* Is a fixed manual GF frequency being used */
+        if (cpi->auto_gold)
+        {
+            /* For one pass throw a GF if recent frame intra useage is
+             * low or the GF useage is high
+             */
+            if ((cpi->pass == 0) && (cpi->this_frame_percent_intra < 15 || gf_frame_useage >= 5))
+                cpi->common.refresh_golden_frame = 1;
+
+            /* Two pass GF descision */
+            else if (cpi->pass == 2)
+                cpi->common.refresh_golden_frame = 1;
+        }
+
+#if 0
+
+        /* Debug stats */
+        if (0)
+        {
+            FILE *f;
+
+            f = fopen("gf_useaget.stt", "a");
+            fprintf(f, " %8ld %10ld %10ld %10ld %10ld\n",
+                    cpi->common.current_video_frame,  cpi->gfu_boost, GFQ_ADJUSTMENT, cpi->gfu_boost, gf_frame_useage);
+            fclose(f);
+        }
+
+#endif
+
+        if (cpi->common.refresh_golden_frame == 1)
+        {
+#if 0
+
+            if (0)
+            {
+                FILE *f;
+
+                f = fopen("GFexit.stt", "a");
+                fprintf(f, "%8ld GF coded\n", cpi->common.current_video_frame);
+                fclose(f);
+            }
+
+#endif
+
+            if (cpi->auto_adjust_gold_quantizer)
+            {
+                calc_gf_params(cpi);
+            }
+
+            /* If we are using alternate ref instead of gf then do not apply the
+             * boost It will instead be applied to the altref update Jims
+             * modified boost
+             */
+            if (!cpi->source_alt_ref_active)
+            {
+                if (cpi->oxcf.fixed_q < 0)
+                {
+                    if (cpi->pass == 2)
+                    {
+                        /* The spend on the GF is defined in the two pass
+                         * code for two pass encodes
+                         */
+                        cpi->this_frame_target = cpi->per_frame_bandwidth;
+                    }
+                    else
+                    {
+                        int Boost = cpi->last_boost;
+                        int frames_in_section = cpi->frames_till_gf_update_due + 1;
+                        int allocation_chunks = (frames_in_section * 100) + (Boost - 100);
+                        int bits_in_section = cpi->inter_frame_target * frames_in_section;
+
+                        /* Normalize Altboost and allocations chunck down to
+                         * prevent overflow
+                         */
+                        while (Boost > 1000)
+                        {
+                            Boost /= 2;
+                            allocation_chunks /= 2;
+                        }
+
+                        /* Avoid loss of precision but avoid overflow */
+                        if ((bits_in_section >> 7) > allocation_chunks)
+                            cpi->this_frame_target = Boost * (bits_in_section / allocation_chunks);
+                        else
+                            cpi->this_frame_target = (Boost * bits_in_section) / allocation_chunks;
+                    }
+                }
+                else
+                    cpi->this_frame_target =
+                        (estimate_bits_at_q(1, Q, cpi->common.MBs, 1.0)
+                         * cpi->last_boost) / 100;
+
+            }
+            /* If there is an active ARF at this location use the minimum
+             * bits on this frame even if it is a contructed arf.
+             * The active maximum quantizer insures that an appropriate
+             * number of bits will be spent if needed for contstructed ARFs.
+             */
+            else
+            {
+                cpi->this_frame_target = 0;
+            }
+
+            cpi->current_gf_interval = cpi->frames_till_gf_update_due;
+
+        }
+    }
+
+    cpi->per_frame_bandwidth = old_per_frame_bandwidth;
+}
+
+
+void vp8_update_rate_correction_factors(VP8_COMP *cpi, int damp_var)
+{
+    int    Q = cpi->common.base_qindex;
+    int    correction_factor = 100;
+    double rate_correction_factor;
+    double adjustment_limit;
+
+    int    projected_size_based_on_q = 0;
+
+    /* Clear down mmx registers to allow floating point in what follows */
+    vp8_clear_system_state();
+
+    if (cpi->common.frame_type == KEY_FRAME)
+    {
+        rate_correction_factor = cpi->key_frame_rate_correction_factor;
+    }
+    else
+    {
+        if (cpi->oxcf.number_of_layers == 1 &&
+           (cpi->common.refresh_alt_ref_frame ||
+            cpi->common.refresh_golden_frame))
+            rate_correction_factor = cpi->gf_rate_correction_factor;
+        else
+            rate_correction_factor = cpi->rate_correction_factor;
+    }
+
+    /* Work out how big we would have expected the frame to be at this Q
+     * given the current correction factor. Stay in double to avoid int
+     * overflow when values are large
+     */
+    projected_size_based_on_q = (int)(((.5 + rate_correction_factor * vp8_bits_per_mb[cpi->common.frame_type][Q]) * cpi->common.MBs) / (1 << BPER_MB_NORMBITS));
+
+    /* Make some allowance for cpi->zbin_over_quant */
+    if (cpi->mb.zbin_over_quant > 0)
+    {
+        int Z = cpi->mb.zbin_over_quant;
+        double Factor = 0.99;
+        double factor_adjustment = 0.01 / 256.0;
+
+        while (Z > 0)
+        {
+            Z --;
+            projected_size_based_on_q =
+                (int)(Factor * projected_size_based_on_q);
+            Factor += factor_adjustment;
+
+            if (Factor  >= 0.999)
+                Factor = 0.999;
+        }
+    }
+
+    /* Work out a size correction factor. */
+    if (projected_size_based_on_q > 0)
+        correction_factor = (100 * cpi->projected_frame_size) / projected_size_based_on_q;
+
+    /* More heavily damped adjustment used if we have been oscillating
+     * either side of target
+     */
+    switch (damp_var)
+    {
+    case 0:
+        adjustment_limit = 0.75;
+        break;
+    case 1:
+        adjustment_limit = 0.375;
+        break;
+    case 2:
+    default:
+        adjustment_limit = 0.25;
+        break;
+    }
+
+    if (correction_factor > 102)
+    {
+        /* We are not already at the worst allowable quality */
+        correction_factor = (int)(100.5 + ((correction_factor - 100) * adjustment_limit));
+        rate_correction_factor = ((rate_correction_factor * correction_factor) / 100);
+
+        /* Keep rate_correction_factor within limits */
+        if (rate_correction_factor > MAX_BPB_FACTOR)
+            rate_correction_factor = MAX_BPB_FACTOR;
+    }
+    else if (correction_factor < 99)
+    {
+        /* We are not already at the best allowable quality */
+        correction_factor = (int)(100.5 - ((100 - correction_factor) * adjustment_limit));
+        rate_correction_factor = ((rate_correction_factor * correction_factor) / 100);
+
+        /* Keep rate_correction_factor within limits */
+        if (rate_correction_factor < MIN_BPB_FACTOR)
+            rate_correction_factor = MIN_BPB_FACTOR;
+    }
+
+    if (cpi->common.frame_type == KEY_FRAME)
+        cpi->key_frame_rate_correction_factor = rate_correction_factor;
+    else
+    {
+        if (cpi->oxcf.number_of_layers == 1 &&
+           (cpi->common.refresh_alt_ref_frame ||
+            cpi->common.refresh_golden_frame))
+            cpi->gf_rate_correction_factor = rate_correction_factor;
+        else
+            cpi->rate_correction_factor = rate_correction_factor;
+    }
+}
+
+
+int vp8_regulate_q(VP8_COMP *cpi, int target_bits_per_frame)
+{
+    int Q = cpi->active_worst_quality;
+
+    if (cpi->force_maxqp == 1) {
+      cpi->active_worst_quality = cpi->worst_quality;
+      return cpi->worst_quality;
+    }
+
+    /* Reset Zbin OQ value */
+    cpi->mb.zbin_over_quant = 0;
+
+    if (cpi->oxcf.fixed_q >= 0)
+    {
+        Q = cpi->oxcf.fixed_q;
+
+        if (cpi->common.frame_type == KEY_FRAME)
+        {
+            Q = cpi->oxcf.key_q;
+        }
+        else if (cpi->oxcf.number_of_layers == 1 &&
+            cpi->common.refresh_alt_ref_frame)
+        {
+            Q = cpi->oxcf.alt_q;
+        }
+        else if (cpi->oxcf.number_of_layers == 1  &&
+            cpi->common.refresh_golden_frame)
+        {
+            Q = cpi->oxcf.gold_q;
+        }
+    }
+    else
+    {
+        int i;
+        int last_error = INT_MAX;
+        int target_bits_per_mb;
+        int bits_per_mb_at_this_q;
+        double correction_factor;
+
+        /* Select the appropriate correction factor based upon type of frame. */
+        if (cpi->common.frame_type == KEY_FRAME)
+            correction_factor = cpi->key_frame_rate_correction_factor;
+        else
+        {
+            if (cpi->oxcf.number_of_layers == 1 &&
+               (cpi->common.refresh_alt_ref_frame ||
+                cpi->common.refresh_golden_frame))
+                correction_factor = cpi->gf_rate_correction_factor;
+            else
+                correction_factor = cpi->rate_correction_factor;
+        }
+
+        /* Calculate required scaling factor based on target frame size and
+         * size of frame produced using previous Q
+         */
+        if (target_bits_per_frame >= (INT_MAX >> BPER_MB_NORMBITS))
+            /* Case where we would overflow int */
+            target_bits_per_mb = (target_bits_per_frame / cpi->common.MBs) << BPER_MB_NORMBITS;
+        else
+            target_bits_per_mb = (target_bits_per_frame << BPER_MB_NORMBITS) / cpi->common.MBs;
+
+        i = cpi->active_best_quality;
+
+        do
+        {
+            bits_per_mb_at_this_q = (int)(.5 + correction_factor * vp8_bits_per_mb[cpi->common.frame_type][i]);
+
+            if (bits_per_mb_at_this_q <= target_bits_per_mb)
+            {
+                if ((target_bits_per_mb - bits_per_mb_at_this_q) <= last_error)
+                    Q = i;
+                else
+                    Q = i - 1;
+
+                break;
+            }
+            else
+                last_error = bits_per_mb_at_this_q - target_bits_per_mb;
+        }
+        while (++i <= cpi->active_worst_quality);
+
+
+        /* If we are at MAXQ then enable Q over-run which seeks to claw
+         * back additional bits through things like the RD multiplier
+         * and zero bin size.
+         */
+        if (Q >= MAXQ)
+        {
+            int zbin_oqmax;
+
+            double Factor = 0.99;
+            double factor_adjustment = 0.01 / 256.0;
+
+            if (cpi->common.frame_type == KEY_FRAME)
+                zbin_oqmax = 0;
+            else if (cpi->oxcf.number_of_layers == 1 &&
+                (cpi->common.refresh_alt_ref_frame ||
+                (cpi->common.refresh_golden_frame &&
+                 !cpi->source_alt_ref_active)))
+                zbin_oqmax = 16;
+            else
+                zbin_oqmax = ZBIN_OQ_MAX;
+
+            /*{
+                double Factor = (double)target_bits_per_mb/(double)bits_per_mb_at_this_q;
+                double Oq;
+
+                Factor = Factor/1.2683;
+
+                Oq = pow( Factor, (1.0/-0.165) );
+
+                if ( Oq > zbin_oqmax )
+                    Oq = zbin_oqmax;
+
+                cpi->zbin_over_quant = (int)Oq;
+            }*/
+
+            /* Each incrment in the zbin is assumed to have a fixed effect
+             * on bitrate. This is not of course true. The effect will be
+             * highly clip dependent and may well have sudden steps. The
+             * idea here is to acheive higher effective quantizers than the
+             * normal maximum by expanding the zero bin and hence
+             * decreasing the number of low magnitude non zero coefficients.
+             */
+            while (cpi->mb.zbin_over_quant < zbin_oqmax)
+            {
+                cpi->mb.zbin_over_quant ++;
+
+                if (cpi->mb.zbin_over_quant > zbin_oqmax)
+                    cpi->mb.zbin_over_quant = zbin_oqmax;
+
+                /* Adjust bits_per_mb_at_this_q estimate */
+                bits_per_mb_at_this_q = (int)(Factor * bits_per_mb_at_this_q);
+                Factor += factor_adjustment;
+
+                if (Factor  >= 0.999)
+                    Factor = 0.999;
+
+                /* Break out if we get down to the target rate */
+                if (bits_per_mb_at_this_q <= target_bits_per_mb)
+                    break;
+            }
+
+        }
+    }
+
+    return Q;
+}
+
+
+static int estimate_keyframe_frequency(VP8_COMP *cpi)
+{
+    int i;
+
+    /* Average key frame frequency */
+    int av_key_frame_frequency = 0;
+
+    /* First key frame at start of sequence is a special case. We have no
+     * frequency data.
+     */
+    if (cpi->key_frame_count == 1)
+    {
+        /* Assume a default of 1 kf every 2 seconds, or the max kf interval,
+         * whichever is smaller.
+         */
+        int key_freq = cpi->oxcf.key_freq>0 ? cpi->oxcf.key_freq : 1;
+        av_key_frame_frequency = 1 + (int)cpi->output_framerate * 2;
+
+        if (cpi->oxcf.auto_key && av_key_frame_frequency > key_freq)
+            av_key_frame_frequency = key_freq;
+
+        cpi->prior_key_frame_distance[KEY_FRAME_CONTEXT - 1]
+            = av_key_frame_frequency;
+    }
+    else
+    {
+        unsigned int total_weight = 0;
+        int last_kf_interval =
+                (cpi->frames_since_key > 0) ? cpi->frames_since_key : 1;
+
+        /* reset keyframe context and calculate weighted average of last
+         * KEY_FRAME_CONTEXT keyframes
+         */
+        for (i = 0; i < KEY_FRAME_CONTEXT; i++)
+        {
+            if (i < KEY_FRAME_CONTEXT - 1)
+                cpi->prior_key_frame_distance[i]
+                    = cpi->prior_key_frame_distance[i+1];
+            else
+                cpi->prior_key_frame_distance[i] = last_kf_interval;
+
+            av_key_frame_frequency += prior_key_frame_weight[i]
+                                      * cpi->prior_key_frame_distance[i];
+            total_weight += prior_key_frame_weight[i];
+        }
+
+        av_key_frame_frequency  /= total_weight;
+
+    }
+    // TODO (marpan): Given the checks above, |av_key_frame_frequency|
+    // should always be above 0. But for now we keep the sanity check in.
+    if (av_key_frame_frequency == 0)
+        av_key_frame_frequency = 1;
+    return av_key_frame_frequency;
+}
+
+
+void vp8_adjust_key_frame_context(VP8_COMP *cpi)
+{
+    /* Clear down mmx registers to allow floating point in what follows */
+    vp8_clear_system_state();
+
+    /* Do we have any key frame overspend to recover? */
+    /* Two-pass overspend handled elsewhere. */
+    if ((cpi->pass != 2)
+         && (cpi->projected_frame_size > cpi->per_frame_bandwidth))
+    {
+        int overspend;
+
+        /* Update the count of key frame overspend to be recovered in
+         * subsequent frames. A portion of the KF overspend is treated as gf
+         * overspend (and hence recovered more quickly) as the kf is also a
+         * gf. Otherwise the few frames following each kf tend to get more
+         * bits allocated than those following other gfs.
+         */
+        overspend = (cpi->projected_frame_size - cpi->per_frame_bandwidth);
+
+        if (cpi->oxcf.number_of_layers > 1)
+            cpi->kf_overspend_bits += overspend;
+        else
+        {
+            cpi->kf_overspend_bits += overspend * 7 / 8;
+            cpi->gf_overspend_bits += overspend * 1 / 8;
+        }
+
+        /* Work out how much to try and recover per frame. */
+        cpi->kf_bitrate_adjustment = cpi->kf_overspend_bits
+                                     / estimate_keyframe_frequency(cpi);
+    }
+
+    cpi->frames_since_key = 0;
+    cpi->key_frame_count++;
+}
+
+
+void vp8_compute_frame_size_bounds(VP8_COMP *cpi, int *frame_under_shoot_limit, int *frame_over_shoot_limit)
+{
+    /* Set-up bounds on acceptable frame size: */
+    if (cpi->oxcf.fixed_q >= 0)
+    {
+        /* Fixed Q scenario: frame size never outranges target
+         * (there is no target!)
+         */
+        *frame_under_shoot_limit = 0;
+        *frame_over_shoot_limit  = INT_MAX;
+    }
+    else
+    {
+        if (cpi->common.frame_type == KEY_FRAME)
+        {
+            *frame_over_shoot_limit  = cpi->this_frame_target * 9 / 8;
+            *frame_under_shoot_limit = cpi->this_frame_target * 7 / 8;
+        }
+        else
+        {
+            if (cpi->oxcf.number_of_layers > 1 ||
+                cpi->common.refresh_alt_ref_frame ||
+                cpi->common.refresh_golden_frame)
+            {
+                *frame_over_shoot_limit  = cpi->this_frame_target * 9 / 8;
+                *frame_under_shoot_limit = cpi->this_frame_target * 7 / 8;
+            }
+            else
+            {
+                /* For CBR take buffer fullness into account */
+                if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+                {
+                    if (cpi->buffer_level >= ((cpi->oxcf.optimal_buffer_level + cpi->oxcf.maximum_buffer_size) >> 1))
+                    {
+                        /* Buffer is too full so relax overshoot and tighten
+                         * undershoot
+                         */
+                        *frame_over_shoot_limit  = cpi->this_frame_target * 12 / 8;
+                        *frame_under_shoot_limit = cpi->this_frame_target * 6 / 8;
+                    }
+                    else if (cpi->buffer_level <= (cpi->oxcf.optimal_buffer_level >> 1))
+                    {
+                        /* Buffer is too low so relax undershoot and tighten
+                         * overshoot
+                         */
+                        *frame_over_shoot_limit  = cpi->this_frame_target * 10 / 8;
+                        *frame_under_shoot_limit = cpi->this_frame_target * 4 / 8;
+                    }
+                    else
+                    {
+                        *frame_over_shoot_limit  = cpi->this_frame_target * 11 / 8;
+                        *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8;
+                    }
+                }
+                /* VBR and CQ mode */
+                /* Note that tighter restrictions here can help quality
+                 * but hurt encode speed
+                 */
+                else
+                {
+                    /* Stron overshoot limit for constrained quality */
+                    if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
+                    {
+                        *frame_over_shoot_limit  = cpi->this_frame_target * 11 / 8;
+                        *frame_under_shoot_limit = cpi->this_frame_target * 2 / 8;
+                    }
+                    else
+                    {
+                        *frame_over_shoot_limit  = cpi->this_frame_target * 11 / 8;
+                        *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8;
+                    }
+                }
+            }
+        }
+
+        /* For very small rate targets where the fractional adjustment
+         * (eg * 7/8) may be tiny make sure there is at least a minimum
+         * range.
+         */
+        *frame_over_shoot_limit += 200;
+        *frame_under_shoot_limit -= 200;
+        if ( *frame_under_shoot_limit < 0 )
+            *frame_under_shoot_limit = 0;
+
+    }
+}
+
+
+/* return of 0 means drop frame */
+int vp8_pick_frame_size(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+
+    if (cm->frame_type == KEY_FRAME)
+        calc_iframe_target_size(cpi);
+    else
+    {
+        calc_pframe_target_size(cpi);
+
+        /* Check if we're dropping the frame: */
+        if (cpi->drop_frame)
+        {
+            cpi->drop_frame = 0;
+            return 0;
+        }
+    }
+    return 1;
+}
+// If this just encoded frame (mcomp/transform/quant, but before loopfilter and
+// pack_bitstream) has large overshoot, and was not being encoded close to the
+// max QP, then drop this frame and force next frame to be encoded at max QP.
+// Condition this on 1 pass CBR with screen content mode and frame dropper off.
+// TODO(marpan): Should do this exit condition during the encode_frame
+// (i.e., halfway during the encoding of the frame) to save cycles.
+int vp8_drop_encodedframe_overshoot(VP8_COMP *cpi, int Q) {
+  if (cpi->pass == 0 &&
+      cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER &&
+      cpi->drop_frames_allowed == 0 &&
+      cpi->common.frame_type != KEY_FRAME) {
+    // Note: the "projected_frame_size" from encode_frame() only gives estimate
+    // of mode/motion vector rate (in non-rd mode): so below we only require
+    // that projected_frame_size is somewhat greater than per-frame-bandwidth,
+    // but add additional condition with high threshold on prediction residual.
+
+    // QP threshold: only allow dropping if we are not close to qp_max.
+    int thresh_qp = 3 * cpi->worst_quality >> 2;
+    // Rate threshold, in bytes.
+    int thresh_rate = 2 * (cpi->av_per_frame_bandwidth >> 3);
+    // Threshold for the average (over all macroblocks) of the pixel-sum
+    // residual error over 16x16 block. Should add QP dependence on threshold?
+    int thresh_pred_err_mb = (256 << 4);
+    int pred_err_mb = (int)(cpi->mb.prediction_error / cpi->common.MBs);
+    if (Q < thresh_qp &&
+        cpi->projected_frame_size > thresh_rate &&
+        pred_err_mb > thresh_pred_err_mb) {
+      // Drop this frame: advance frame counters, and set force_maxqp flag.
+      cpi->common.current_video_frame++;
+      cpi->frames_since_key++;
+      // Flag to indicate we will force next frame to be encoded at max QP.
+      cpi->force_maxqp = 1;
+      return 1;
+    } else {
+      cpi->force_maxqp = 0;
+      return 0;
+    }
+    cpi->force_maxqp = 0;
+    return 0;
+  }
+  cpi->force_maxqp = 0;
+  return 0;
+}
diff --git a/media/libvpx/vp8/encoder/ratectrl.h b/media/libvpx/vp8/encoder/ratectrl.h
new file mode 100644
index 000000000..703de9ff5
--- /dev/null
+++ b/media/libvpx/vp8/encoder/ratectrl.h
@@ -0,0 +1,39 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_RATECTRL_H_
+#define VP8_ENCODER_RATECTRL_H_
+
+#include "onyx_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_save_coding_context(VP8_COMP *cpi);
+extern void vp8_restore_coding_context(VP8_COMP *cpi);
+
+extern void vp8_setup_key_frame(VP8_COMP *cpi);
+extern void vp8_update_rate_correction_factors(VP8_COMP *cpi, int damp_var);
+extern int vp8_regulate_q(VP8_COMP *cpi, int target_bits_per_frame);
+extern void vp8_adjust_key_frame_context(VP8_COMP *cpi);
+extern void vp8_compute_frame_size_bounds(VP8_COMP *cpi, int *frame_under_shoot_limit, int *frame_over_shoot_limit);
+
+/* return of 0 means drop frame */
+extern int vp8_pick_frame_size(VP8_COMP *cpi);
+
+extern int vp8_drop_encodedframe_overshoot(VP8_COMP *cpi, int Q);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_RATECTRL_H_
diff --git a/media/libvpx/vp8/encoder/rdopt.c b/media/libvpx/vp8/encoder/rdopt.c
new file mode 100644
index 000000000..17194f0d4
--- /dev/null
+++ b/media/libvpx/vp8/encoder/rdopt.c
@@ -0,0 +1,2644 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <stdio.h>
+#include <math.h>
+#include <limits.h>
+#include <assert.h>
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "tokenize.h"
+#include "treewriter.h"
+#include "onyx_int.h"
+#include "modecosts.h"
+#include "encodeintra.h"
+#include "pickinter.h"
+#include "vp8/common/entropymode.h"
+#include "vp8/common/reconinter.h"
+#include "vp8/common/reconintra4x4.h"
+#include "vp8/common/findnearmv.h"
+#include "vp8/common/quant_common.h"
+#include "encodemb.h"
+#include "quantize.h"
+#include "vp8/common/variance.h"
+#include "mcomp.h"
+#include "rdopt.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/systemdependent.h"
+#if CONFIG_TEMPORAL_DENOISING
+#include "denoising.h"
+#endif
+extern void vp8_update_zbin_extra(VP8_COMP *cpi, MACROBLOCK *x);
+
+#define MAXF(a,b)            (((a) > (b)) ? (a) : (b))
+
+typedef struct rate_distortion_struct
+{
+    int rate2;
+    int rate_y;
+    int rate_uv;
+    int distortion2;
+    int distortion_uv;
+} RATE_DISTORTION;
+
+typedef struct best_mode_struct
+{
+  int yrd;
+  int rd;
+  int intra_rd;
+  MB_MODE_INFO mbmode;
+  union b_mode_info bmodes[16];
+  PARTITION_INFO partition;
+} BEST_MODE;
+
+static const int auto_speed_thresh[17] =
+{
+    1000,
+    200,
+    150,
+    130,
+    150,
+    125,
+    120,
+    115,
+    115,
+    115,
+    115,
+    115,
+    115,
+    115,
+    115,
+    115,
+    105
+};
+
+const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES] =
+{
+    ZEROMV,
+    DC_PRED,
+
+    NEARESTMV,
+    NEARMV,
+
+    ZEROMV,
+    NEARESTMV,
+
+    ZEROMV,
+    NEARESTMV,
+
+    NEARMV,
+    NEARMV,
+
+    V_PRED,
+    H_PRED,
+    TM_PRED,
+
+    NEWMV,
+    NEWMV,
+    NEWMV,
+
+    SPLITMV,
+    SPLITMV,
+    SPLITMV,
+
+    B_PRED,
+};
+
+/* This table determines the search order in reference frame priority order,
+ * which may not necessarily match INTRA,LAST,GOLDEN,ARF
+ */
+const int vp8_ref_frame_order[MAX_MODES] =
+{
+    1,
+    0,
+
+    1,
+    1,
+
+    2,
+    2,
+
+    3,
+    3,
+
+    2,
+    3,
+
+    0,
+    0,
+    0,
+
+    1,
+    2,
+    3,
+
+    1,
+    2,
+    3,
+
+    0,
+};
+
+static void fill_token_costs(
+    int c[BLOCK_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS],
+    const vp8_prob p[BLOCK_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES]
+)
+{
+    int i, j, k;
+
+
+    for (i = 0; i < BLOCK_TYPES; i++)
+        for (j = 0; j < COEF_BANDS; j++)
+            for (k = 0; k < PREV_COEF_CONTEXTS; k++)
+
+                /* check for pt=0 and band > 1 if block type 0
+                 * and 0 if blocktype 1
+                 */
+                if (k == 0 && j > (i == 0))
+                    vp8_cost_tokens2(c[i][j][k], p [i][j][k], vp8_coef_tree, 2);
+                else
+                    vp8_cost_tokens(c[i][j][k], p [i][j][k], vp8_coef_tree);
+}
+
+static const int rd_iifactor[32] =
+{
+    4, 4, 3, 2, 1, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/* values are now correlated to quantizer */
+static const int sad_per_bit16lut[QINDEX_RANGE] =
+{
+    2,  2,  2,  2,  2,  2,  2,  2,
+    2,  2,  2,  2,  2,  2,  2,  2,
+    3,  3,  3,  3,  3,  3,  3,  3,
+    3,  3,  3,  3,  3,  3,  4,  4,
+    4,  4,  4,  4,  4,  4,  4,  4,
+    4,  4,  5,  5,  5,  5,  5,  5,
+    5,  5,  5,  5,  5,  5,  6,  6,
+    6,  6,  6,  6,  6,  6,  6,  6,
+    6,  6,  7,  7,  7,  7,  7,  7,
+    7,  7,  7,  7,  7,  7,  8,  8,
+    8,  8,  8,  8,  8,  8,  8,  8,
+    8,  8,  9,  9,  9,  9,  9,  9,
+    9,  9,  9,  9,  9,  9,  10, 10,
+    10, 10, 10, 10, 10, 10, 11, 11,
+    11, 11, 11, 11, 12, 12, 12, 12,
+    12, 12, 13, 13, 13, 13, 14, 14
+};
+static const int sad_per_bit4lut[QINDEX_RANGE] =
+{
+    2,  2,  2,  2,  2,  2,  3,  3,
+    3,  3,  3,  3,  3,  3,  3,  3,
+    3,  3,  3,  3,  4,  4,  4,  4,
+    4,  4,  4,  4,  4,  4,  5,  5,
+    5,  5,  5,  5,  6,  6,  6,  6,
+    6,  6,  6,  6,  6,  6,  6,  6,
+    7,  7,  7,  7,  7,  7,  7,  7,
+    7,  7,  7,  7,  7,  8,  8,  8,
+    8,  8,  9,  9,  9,  9,  9,  9,
+    10, 10, 10, 10, 10, 10, 10, 10,
+    11, 11, 11, 11, 11, 11, 11, 11,
+    12, 12, 12, 12, 12, 12, 12, 12,
+    13, 13, 13, 13, 13, 13, 13, 14,
+    14, 14, 14, 14, 15, 15, 15, 15,
+    16, 16, 16, 16, 17, 17, 17, 18,
+    18, 18, 19, 19, 19, 20, 20, 20,
+};
+
+void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex)
+{
+    cpi->mb.sadperbit16 =  sad_per_bit16lut[QIndex];
+    cpi->mb.sadperbit4  =  sad_per_bit4lut[QIndex];
+}
+
+void vp8_initialize_rd_consts(VP8_COMP *cpi, MACROBLOCK *x, int Qvalue)
+{
+    int q;
+    int i;
+    double capped_q = (Qvalue < 160) ? (double)Qvalue : 160.0;
+    double rdconst = 2.80;
+
+    vp8_clear_system_state();
+
+    /* Further tests required to see if optimum is different
+     * for key frames, golden frames and arf frames.
+     */
+    cpi->RDMULT = (int)(rdconst * (capped_q * capped_q));
+
+    /* Extend rate multiplier along side quantizer zbin increases */
+    if (cpi->mb.zbin_over_quant  > 0)
+    {
+        double oq_factor;
+        double modq;
+
+        /* Experimental code using the same basic equation as used for Q above
+         * The units of cpi->mb.zbin_over_quant are 1/128 of Q bin size
+         */
+        oq_factor = 1.0 + ((double)0.0015625 * cpi->mb.zbin_over_quant);
+        modq = (int)((double)capped_q * oq_factor);
+        cpi->RDMULT = (int)(rdconst * (modq * modq));
+    }
+
+    if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME))
+    {
+        if (cpi->twopass.next_iiratio > 31)
+            cpi->RDMULT += (cpi->RDMULT * rd_iifactor[31]) >> 4;
+        else
+            cpi->RDMULT +=
+                (cpi->RDMULT * rd_iifactor[cpi->twopass.next_iiratio]) >> 4;
+    }
+
+    cpi->mb.errorperbit = (cpi->RDMULT / 110);
+    cpi->mb.errorperbit += (cpi->mb.errorperbit==0);
+
+    vp8_set_speed_features(cpi);
+
+    for (i = 0; i < MAX_MODES; i++)
+    {
+        x->mode_test_hit_counts[i] = 0;
+    }
+
+    q = (int)pow(Qvalue, 1.25);
+
+    if (q < 8)
+        q = 8;
+
+    if (cpi->RDMULT > 1000)
+    {
+        cpi->RDDIV = 1;
+        cpi->RDMULT /= 100;
+
+        for (i = 0; i < MAX_MODES; i++)
+        {
+            if (cpi->sf.thresh_mult[i] < INT_MAX)
+            {
+                x->rd_threshes[i] = cpi->sf.thresh_mult[i] * q / 100;
+            }
+            else
+            {
+                x->rd_threshes[i] = INT_MAX;
+            }
+
+            cpi->rd_baseline_thresh[i] = x->rd_threshes[i];
+        }
+    }
+    else
+    {
+        cpi->RDDIV = 100;
+
+        for (i = 0; i < MAX_MODES; i++)
+        {
+            if (cpi->sf.thresh_mult[i] < (INT_MAX / q))
+            {
+                x->rd_threshes[i] = cpi->sf.thresh_mult[i] * q;
+            }
+            else
+            {
+                x->rd_threshes[i] = INT_MAX;
+            }
+
+            cpi->rd_baseline_thresh[i] = x->rd_threshes[i];
+        }
+    }
+
+    {
+      /* build token cost array for the type of frame we have now */
+      FRAME_CONTEXT *l = &cpi->lfc_n;
+
+      if(cpi->common.refresh_alt_ref_frame)
+          l = &cpi->lfc_a;
+      else if(cpi->common.refresh_golden_frame)
+          l = &cpi->lfc_g;
+
+      fill_token_costs(
+          cpi->mb.token_costs,
+          (const vp8_prob( *)[8][3][11]) l->coef_probs
+      );
+      /*
+      fill_token_costs(
+          cpi->mb.token_costs,
+          (const vp8_prob( *)[8][3][11]) cpi->common.fc.coef_probs);
+      */
+
+
+      /* TODO make these mode costs depend on last,alt or gold too.  (jbb) */
+      vp8_init_mode_costs(cpi);
+    }
+
+}
+
+void vp8_auto_select_speed(VP8_COMP *cpi)
+{
+    int milliseconds_for_compress = (int)(1000000 / cpi->framerate);
+
+    milliseconds_for_compress = milliseconds_for_compress * (16 - cpi->oxcf.cpu_used) / 16;
+
+#if 0
+
+    if (0)
+    {
+        FILE *f;
+
+        f = fopen("speed.stt", "a");
+        fprintf(f, " %8ld %10ld %10ld %10ld\n",
+                cpi->common.current_video_frame, cpi->Speed, milliseconds_for_compress, cpi->avg_pick_mode_time);
+        fclose(f);
+    }
+
+#endif
+
+    if (cpi->avg_pick_mode_time < milliseconds_for_compress && (cpi->avg_encode_time - cpi->avg_pick_mode_time) < milliseconds_for_compress)
+    {
+        if (cpi->avg_pick_mode_time == 0)
+        {
+            cpi->Speed = 4;
+        }
+        else
+        {
+            if (milliseconds_for_compress * 100 < cpi->avg_encode_time * 95)
+            {
+                cpi->Speed          += 2;
+                cpi->avg_pick_mode_time = 0;
+                cpi->avg_encode_time = 0;
+
+                if (cpi->Speed > 16)
+                {
+                    cpi->Speed = 16;
+                }
+            }
+
+            if (milliseconds_for_compress * 100 > cpi->avg_encode_time * auto_speed_thresh[cpi->Speed])
+            {
+                cpi->Speed          -= 1;
+                cpi->avg_pick_mode_time = 0;
+                cpi->avg_encode_time = 0;
+
+                /* In real-time mode, cpi->speed is in [4, 16]. */
+                if (cpi->Speed < 4)
+                {
+                    cpi->Speed = 4;
+                }
+            }
+        }
+    }
+    else
+    {
+        cpi->Speed += 4;
+
+        if (cpi->Speed > 16)
+            cpi->Speed = 16;
+
+
+        cpi->avg_pick_mode_time = 0;
+        cpi->avg_encode_time = 0;
+    }
+}
+
+int vp8_block_error_c(short *coeff, short *dqcoeff)
+{
+    int i;
+    int error = 0;
+
+    for (i = 0; i < 16; i++)
+    {
+        int this_diff = coeff[i] - dqcoeff[i];
+        error += this_diff * this_diff;
+    }
+
+    return error;
+}
+
+int vp8_mbblock_error_c(MACROBLOCK *mb, int dc)
+{
+    BLOCK  *be;
+    BLOCKD *bd;
+    int i, j;
+    int berror, error = 0;
+
+    for (i = 0; i < 16; i++)
+    {
+        be = &mb->block[i];
+        bd = &mb->e_mbd.block[i];
+
+        berror = 0;
+
+        for (j = dc; j < 16; j++)
+        {
+            int this_diff = be->coeff[j] - bd->dqcoeff[j];
+            berror += this_diff * this_diff;
+        }
+
+        error += berror;
+    }
+
+    return error;
+}
+
+int vp8_mbuverror_c(MACROBLOCK *mb)
+{
+
+    BLOCK  *be;
+    BLOCKD *bd;
+
+
+    int i;
+    int error = 0;
+
+    for (i = 16; i < 24; i++)
+    {
+        be = &mb->block[i];
+        bd = &mb->e_mbd.block[i];
+
+        error += vp8_block_error_c(be->coeff, bd->dqcoeff);
+    }
+
+    return error;
+}
+
+int VP8_UVSSE(MACROBLOCK *x)
+{
+    unsigned char *uptr, *vptr;
+    unsigned char *upred_ptr = (*(x->block[16].base_src) + x->block[16].src);
+    unsigned char *vpred_ptr = (*(x->block[20].base_src) + x->block[20].src);
+    int uv_stride = x->block[16].src_stride;
+
+    unsigned int sse1 = 0;
+    unsigned int sse2 = 0;
+    int mv_row = x->e_mbd.mode_info_context->mbmi.mv.as_mv.row;
+    int mv_col = x->e_mbd.mode_info_context->mbmi.mv.as_mv.col;
+    int offset;
+    int pre_stride = x->e_mbd.pre.uv_stride;
+
+    if (mv_row < 0)
+        mv_row -= 1;
+    else
+        mv_row += 1;
+
+    if (mv_col < 0)
+        mv_col -= 1;
+    else
+        mv_col += 1;
+
+    mv_row /= 2;
+    mv_col /= 2;
+
+    offset = (mv_row >> 3) * pre_stride + (mv_col >> 3);
+    uptr = x->e_mbd.pre.u_buffer + offset;
+    vptr = x->e_mbd.pre.v_buffer + offset;
+
+    if ((mv_row | mv_col) & 7)
+    {
+        vp8_sub_pixel_variance8x8(uptr, pre_stride,
+            mv_col & 7, mv_row & 7, upred_ptr, uv_stride, &sse2);
+        vp8_sub_pixel_variance8x8(vptr, pre_stride,
+            mv_col & 7, mv_row & 7, vpred_ptr, uv_stride, &sse1);
+        sse2 += sse1;
+    }
+    else
+    {
+        vpx_variance8x8(uptr, pre_stride,
+            upred_ptr, uv_stride, &sse2);
+        vpx_variance8x8(vptr, pre_stride,
+            vpred_ptr, uv_stride, &sse1);
+        sse2 += sse1;
+    }
+    return sse2;
+
+}
+
+static int cost_coeffs(MACROBLOCK *mb, BLOCKD *b, int type, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l)
+{
+    int c = !type;              /* start at coef 0, unless Y with Y2 */
+    int eob = (int)(*b->eob);
+    int pt ;    /* surrounding block/prev coef predictor */
+    int cost = 0;
+    short *qcoeff_ptr = b->qcoeff;
+
+    VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+
+    assert(eob <= 16);
+    for (; c < eob; c++)
+    {
+        const int v = qcoeff_ptr[vp8_default_zig_zag1d[c]];
+        const int t = vp8_dct_value_tokens_ptr[v].Token;
+        cost += mb->token_costs [type] [vp8_coef_bands[c]] [pt] [t];
+        cost += vp8_dct_value_cost_ptr[v];
+        pt = vp8_prev_token_class[t];
+    }
+
+    if (c < 16)
+        cost += mb->token_costs [type] [vp8_coef_bands[c]] [pt] [DCT_EOB_TOKEN];
+
+    pt = (c != !type); /* is eob first coefficient; */
+    *a = *l = pt;
+
+    return cost;
+}
+
+static int vp8_rdcost_mby(MACROBLOCK *mb)
+{
+    int cost = 0;
+    int b;
+    MACROBLOCKD *x = &mb->e_mbd;
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+
+    memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+
+    for (b = 0; b < 16; b++)
+        cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_Y_NO_DC,
+                    ta + vp8_block2above[b], tl + vp8_block2left[b]);
+
+    cost += cost_coeffs(mb, x->block + 24, PLANE_TYPE_Y2,
+                ta + vp8_block2above[24], tl + vp8_block2left[24]);
+
+    return cost;
+}
+
+static void macro_block_yrd( MACROBLOCK *mb,
+                             int *Rate,
+                             int *Distortion)
+{
+    int b;
+    MACROBLOCKD *const x = &mb->e_mbd;
+    BLOCK   *const mb_y2 = mb->block + 24;
+    BLOCKD *const x_y2  = x->block + 24;
+    short *Y2DCPtr = mb_y2->src_diff;
+    BLOCK *beptr;
+    int d;
+
+    vp8_subtract_mby( mb->src_diff, *(mb->block[0].base_src),
+        mb->block[0].src_stride,  mb->e_mbd.predictor, 16);
+
+    /* Fdct and building the 2nd order block */
+    for (beptr = mb->block; beptr < mb->block + 16; beptr += 2)
+    {
+        mb->short_fdct8x4(beptr->src_diff, beptr->coeff, 32);
+        *Y2DCPtr++ = beptr->coeff[0];
+        *Y2DCPtr++ = beptr->coeff[16];
+    }
+
+    /* 2nd order fdct */
+    mb->short_walsh4x4(mb_y2->src_diff, mb_y2->coeff, 8);
+
+    /* Quantization */
+    for (b = 0; b < 16; b++)
+    {
+        mb->quantize_b(&mb->block[b], &mb->e_mbd.block[b]);
+    }
+
+    /* DC predication and Quantization of 2nd Order block */
+    mb->quantize_b(mb_y2, x_y2);
+
+    /* Distortion */
+    d = vp8_mbblock_error(mb, 1) << 2;
+    d += vp8_block_error(mb_y2->coeff, x_y2->dqcoeff);
+
+    *Distortion = (d >> 4);
+
+    /* rate */
+    *Rate = vp8_rdcost_mby(mb);
+}
+
+static void copy_predictor(unsigned char *dst, const unsigned char *predictor)
+{
+    const unsigned int *p = (const unsigned int *)predictor;
+    unsigned int *d = (unsigned int *)dst;
+    d[0] = p[0];
+    d[4] = p[4];
+    d[8] = p[8];
+    d[12] = p[12];
+}
+static int rd_pick_intra4x4block(
+    MACROBLOCK *x,
+    BLOCK *be,
+    BLOCKD *b,
+    B_PREDICTION_MODE *best_mode,
+    const int *bmode_costs,
+    ENTROPY_CONTEXT *a,
+    ENTROPY_CONTEXT *l,
+
+    int *bestrate,
+    int *bestratey,
+    int *bestdistortion)
+{
+    B_PREDICTION_MODE mode;
+    int best_rd = INT_MAX;
+    int rate = 0;
+    int distortion;
+
+    ENTROPY_CONTEXT ta = *a, tempa = *a;
+    ENTROPY_CONTEXT tl = *l, templ = *l;
+    /*
+     * The predictor buffer is a 2d buffer with a stride of 16.  Create
+     * a temp buffer that meets the stride requirements, but we are only
+     * interested in the left 4x4 block
+     * */
+    DECLARE_ALIGNED(16, unsigned char,  best_predictor[16*4]);
+    DECLARE_ALIGNED(16, short, best_dqcoeff[16]);
+    int dst_stride = x->e_mbd.dst.y_stride;
+    unsigned char *dst = x->e_mbd.dst.y_buffer + b->offset;
+
+    unsigned char *Above = dst - dst_stride;
+    unsigned char *yleft = dst - 1;
+    unsigned char top_left = Above[-1];
+
+    for (mode = B_DC_PRED; mode <= B_HU_PRED; mode++)
+    {
+        int this_rd;
+        int ratey;
+
+        rate = bmode_costs[mode];
+
+        vp8_intra4x4_predict(Above, yleft, dst_stride, mode,
+                             b->predictor, 16, top_left);
+        vp8_subtract_b(be, b, 16);
+        x->short_fdct4x4(be->src_diff, be->coeff, 32);
+        x->quantize_b(be, b);
+
+        tempa = ta;
+        templ = tl;
+
+        ratey = cost_coeffs(x, b, PLANE_TYPE_Y_WITH_DC, &tempa, &templ);
+        rate += ratey;
+        distortion = vp8_block_error(be->coeff, b->dqcoeff) >> 2;
+
+        this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
+
+        if (this_rd < best_rd)
+        {
+            *bestrate = rate;
+            *bestratey = ratey;
+            *bestdistortion = distortion;
+            best_rd = this_rd;
+            *best_mode = mode;
+            *a = tempa;
+            *l = templ;
+            copy_predictor(best_predictor, b->predictor);
+            memcpy(best_dqcoeff, b->dqcoeff, 32);
+        }
+    }
+    b->bmi.as_mode = *best_mode;
+
+    vp8_short_idct4x4llm(best_dqcoeff, best_predictor, 16, dst, dst_stride);
+
+    return best_rd;
+}
+
+static int rd_pick_intra4x4mby_modes(MACROBLOCK *mb, int *Rate,
+                                     int *rate_y, int *Distortion, int best_rd)
+{
+    MACROBLOCKD *const xd = &mb->e_mbd;
+    int i;
+    int cost = mb->mbmode_cost [xd->frame_type] [B_PRED];
+    int distortion = 0;
+    int tot_rate_y = 0;
+    int64_t total_rd = 0;
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+    const int *bmode_costs;
+
+    memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+
+    intra_prediction_down_copy(xd, xd->dst.y_buffer - xd->dst.y_stride + 16);
+
+    bmode_costs = mb->inter_bmode_costs;
+
+    for (i = 0; i < 16; i++)
+    {
+        MODE_INFO *const mic = xd->mode_info_context;
+        const int mis = xd->mode_info_stride;
+        B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
+        int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(ry), UNINITIALIZED_IS_SAFE(d);
+
+        if (mb->e_mbd.frame_type == KEY_FRAME)
+        {
+            const B_PREDICTION_MODE A = above_block_mode(mic, i, mis);
+            const B_PREDICTION_MODE L = left_block_mode(mic, i);
+
+            bmode_costs  = mb->bmode_costs[A][L];
+        }
+
+        total_rd += rd_pick_intra4x4block(
+            mb, mb->block + i, xd->block + i, &best_mode, bmode_costs,
+            ta + vp8_block2above[i],
+            tl + vp8_block2left[i], &r, &ry, &d);
+
+        cost += r;
+        distortion += d;
+        tot_rate_y += ry;
+
+        mic->bmi[i].as_mode = best_mode;
+
+        if(total_rd >= (int64_t)best_rd)
+            break;
+    }
+
+    if(total_rd >= (int64_t)best_rd)
+        return INT_MAX;
+
+    *Rate = cost;
+    *rate_y = tot_rate_y;
+    *Distortion = distortion;
+
+    return RDCOST(mb->rdmult, mb->rddiv, cost, distortion);
+}
+
+
+static int rd_pick_intra16x16mby_mode(MACROBLOCK *x,
+                                      int *Rate,
+                                      int *rate_y,
+                                      int *Distortion)
+{
+    MB_PREDICTION_MODE mode;
+    MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(mode_selected);
+    int rate, ratey;
+    int distortion;
+    int best_rd = INT_MAX;
+    int this_rd;
+    MACROBLOCKD *xd = &x->e_mbd;
+
+    /* Y Search for 16x16 intra prediction mode */
+    for (mode = DC_PRED; mode <= TM_PRED; mode++)
+    {
+        xd->mode_info_context->mbmi.mode = mode;
+
+        vp8_build_intra_predictors_mby_s(xd,
+                                         xd->dst.y_buffer - xd->dst.y_stride,
+                                         xd->dst.y_buffer - 1,
+                                         xd->dst.y_stride,
+                                         xd->predictor,
+                                         16);
+
+        macro_block_yrd(x, &ratey, &distortion);
+        rate = ratey + x->mbmode_cost[xd->frame_type]
+                                     [xd->mode_info_context->mbmi.mode];
+
+        this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
+
+        if (this_rd < best_rd)
+        {
+            mode_selected = mode;
+            best_rd = this_rd;
+            *Rate = rate;
+            *rate_y = ratey;
+            *Distortion = distortion;
+        }
+    }
+
+    xd->mode_info_context->mbmi.mode = mode_selected;
+    return best_rd;
+}
+
+static int rd_cost_mbuv(MACROBLOCK *mb)
+{
+    int b;
+    int cost = 0;
+    MACROBLOCKD *x = &mb->e_mbd;
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+
+    memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+
+    for (b = 16; b < 24; b++)
+        cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_UV,
+                    ta + vp8_block2above[b], tl + vp8_block2left[b]);
+
+    return cost;
+}
+
+
+static int rd_inter16x16_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
+                            int *distortion, int fullpixel)
+{
+    (void)cpi;
+    (void)fullpixel;
+
+    vp8_build_inter16x16_predictors_mbuv(&x->e_mbd);
+    vp8_subtract_mbuv(x->src_diff,
+        x->src.u_buffer, x->src.v_buffer, x->src.uv_stride,
+        &x->e_mbd.predictor[256], &x->e_mbd.predictor[320], 8);
+
+    vp8_transform_mbuv(x);
+    vp8_quantize_mbuv(x);
+
+    *rate       = rd_cost_mbuv(x);
+    *distortion = vp8_mbuverror(x) / 4;
+
+    return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
+}
+
+static int rd_inter4x4_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
+                          int *distortion, int fullpixel)
+{
+    (void)cpi;
+    (void)fullpixel;
+
+    vp8_build_inter4x4_predictors_mbuv(&x->e_mbd);
+    vp8_subtract_mbuv(x->src_diff,
+        x->src.u_buffer, x->src.v_buffer, x->src.uv_stride,
+        &x->e_mbd.predictor[256], &x->e_mbd.predictor[320], 8);
+
+    vp8_transform_mbuv(x);
+    vp8_quantize_mbuv(x);
+
+    *rate       = rd_cost_mbuv(x);
+    *distortion = vp8_mbuverror(x) / 4;
+
+    return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
+}
+
+static void rd_pick_intra_mbuv_mode(MACROBLOCK *x, int *rate,
+                                    int *rate_tokenonly, int *distortion)
+{
+    MB_PREDICTION_MODE mode;
+    MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(mode_selected);
+    int best_rd = INT_MAX;
+    int UNINITIALIZED_IS_SAFE(d), UNINITIALIZED_IS_SAFE(r);
+    int rate_to;
+    MACROBLOCKD *xd = &x->e_mbd;
+
+    for (mode = DC_PRED; mode <= TM_PRED; mode++)
+    {
+        int this_rate;
+        int this_distortion;
+        int this_rd;
+
+        xd->mode_info_context->mbmi.uv_mode = mode;
+
+        vp8_build_intra_predictors_mbuv_s(xd,
+                                          xd->dst.u_buffer - xd->dst.uv_stride,
+                                          xd->dst.v_buffer - xd->dst.uv_stride,
+                                          xd->dst.u_buffer - 1,
+                                          xd->dst.v_buffer - 1,
+                                          xd->dst.uv_stride,
+                                          &xd->predictor[256], &xd->predictor[320],
+                                          8);
+
+
+        vp8_subtract_mbuv(x->src_diff,
+                      x->src.u_buffer, x->src.v_buffer, x->src.uv_stride,
+                      &xd->predictor[256], &xd->predictor[320], 8);
+        vp8_transform_mbuv(x);
+        vp8_quantize_mbuv(x);
+
+        rate_to = rd_cost_mbuv(x);
+        this_rate = rate_to + x->intra_uv_mode_cost[xd->frame_type][xd->mode_info_context->mbmi.uv_mode];
+
+        this_distortion = vp8_mbuverror(x) / 4;
+
+        this_rd = RDCOST(x->rdmult, x->rddiv, this_rate, this_distortion);
+
+        if (this_rd < best_rd)
+        {
+            best_rd = this_rd;
+            d = this_distortion;
+            r = this_rate;
+            *rate_tokenonly = rate_to;
+            mode_selected = mode;
+        }
+    }
+
+    *rate = r;
+    *distortion = d;
+
+    xd->mode_info_context->mbmi.uv_mode = mode_selected;
+}
+
+int vp8_cost_mv_ref(MB_PREDICTION_MODE m, const int near_mv_ref_ct[4])
+{
+    vp8_prob p [VP8_MVREFS-1];
+    assert(NEARESTMV <= m  &&  m <= SPLITMV);
+    vp8_mv_ref_probs(p, near_mv_ref_ct);
+    return vp8_cost_token(vp8_mv_ref_tree, p,
+                          vp8_mv_ref_encoding_array + (m - NEARESTMV));
+}
+
+void vp8_set_mbmode_and_mvs(MACROBLOCK *x, MB_PREDICTION_MODE mb, int_mv *mv)
+{
+    x->e_mbd.mode_info_context->mbmi.mode = mb;
+    x->e_mbd.mode_info_context->mbmi.mv.as_int = mv->as_int;
+}
+
+static int labels2mode(
+    MACROBLOCK *x,
+    int const *labelings, int which_label,
+    B_PREDICTION_MODE this_mode,
+    int_mv *this_mv, int_mv *best_ref_mv,
+    int *mvcost[2]
+)
+{
+    MACROBLOCKD *const xd = & x->e_mbd;
+    MODE_INFO *const mic = xd->mode_info_context;
+    const int mis = xd->mode_info_stride;
+
+    int cost = 0;
+    int thismvcost = 0;
+
+    /* We have to be careful retrieving previously-encoded motion vectors.
+       Ones from this macroblock have to be pulled from the BLOCKD array
+       as they have not yet made it to the bmi array in our MB_MODE_INFO. */
+
+    int i = 0;
+
+    do
+    {
+        BLOCKD *const d = xd->block + i;
+        const int row = i >> 2,  col = i & 3;
+
+        B_PREDICTION_MODE m;
+
+        if (labelings[i] != which_label)
+            continue;
+
+        if (col  &&  labelings[i] == labelings[i-1])
+            m = LEFT4X4;
+        else if (row  &&  labelings[i] == labelings[i-4])
+            m = ABOVE4X4;
+        else
+        {
+            /* the only time we should do costing for new motion vector
+             * or mode is when we are on a new label  (jbb May 08, 2007)
+             */
+            switch (m = this_mode)
+            {
+            case NEW4X4 :
+                thismvcost  = vp8_mv_bit_cost(this_mv, best_ref_mv, mvcost, 102);
+                break;
+            case LEFT4X4:
+                this_mv->as_int = col ? d[-1].bmi.mv.as_int : left_block_mv(mic, i);
+                break;
+            case ABOVE4X4:
+                this_mv->as_int = row ? d[-4].bmi.mv.as_int : above_block_mv(mic, i, mis);
+                break;
+            case ZERO4X4:
+                this_mv->as_int = 0;
+                break;
+            default:
+                break;
+            }
+
+            if (m == ABOVE4X4)  /* replace above with left if same */
+            {
+                int_mv left_mv;
+
+                left_mv.as_int = col ? d[-1].bmi.mv.as_int :
+                                        left_block_mv(mic, i);
+
+                if (left_mv.as_int == this_mv->as_int)
+                    m = LEFT4X4;
+            }
+
+            cost = x->inter_bmode_costs[ m];
+        }
+
+        d->bmi.mv.as_int = this_mv->as_int;
+
+        x->partition_info->bmi[i].mode = m;
+        x->partition_info->bmi[i].mv.as_int = this_mv->as_int;
+
+    }
+    while (++i < 16);
+
+    cost += thismvcost ;
+    return cost;
+}
+
+static int rdcost_mbsegment_y(MACROBLOCK *mb, const int *labels,
+                              int which_label, ENTROPY_CONTEXT *ta,
+                              ENTROPY_CONTEXT *tl)
+{
+    int cost = 0;
+    int b;
+    MACROBLOCKD *x = &mb->e_mbd;
+
+    for (b = 0; b < 16; b++)
+        if (labels[ b] == which_label)
+            cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_Y_WITH_DC,
+                                ta + vp8_block2above[b],
+                                tl + vp8_block2left[b]);
+
+    return cost;
+
+}
+static unsigned int vp8_encode_inter_mb_segment(MACROBLOCK *x, int const *labels, int which_label)
+{
+    int i;
+    unsigned int distortion = 0;
+    int pre_stride = x->e_mbd.pre.y_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+
+
+    for (i = 0; i < 16; i++)
+    {
+        if (labels[i] == which_label)
+        {
+            BLOCKD *bd = &x->e_mbd.block[i];
+            BLOCK *be = &x->block[i];
+
+            vp8_build_inter_predictors_b(bd, 16, base_pre, pre_stride, x->e_mbd.subpixel_predict);
+            vp8_subtract_b(be, bd, 16);
+            x->short_fdct4x4(be->src_diff, be->coeff, 32);
+            x->quantize_b(be, bd);
+
+            distortion += vp8_block_error(be->coeff, bd->dqcoeff);
+        }
+    }
+
+    return distortion;
+}
+
+
+static const unsigned int segmentation_to_sseshift[4] = {3, 3, 2, 0};
+
+
+typedef struct
+{
+  int_mv *ref_mv;
+  int_mv mvp;
+
+  int segment_rd;
+  int segment_num;
+  int r;
+  int d;
+  int segment_yrate;
+  B_PREDICTION_MODE modes[16];
+  int_mv mvs[16];
+  unsigned char eobs[16];
+
+  int mvthresh;
+  int *mdcounts;
+
+  int_mv sv_mvp[4]; /* save 4 mvp from 8x8 */
+  int sv_istep[2];  /* save 2 initial step_param for 16x8/8x16 */
+
+} BEST_SEG_INFO;
+
+
+static void rd_check_segment(VP8_COMP *cpi, MACROBLOCK *x,
+                             BEST_SEG_INFO *bsi, unsigned int segmentation)
+{
+    int i;
+    int const *labels;
+    int br = 0;
+    int bd = 0;
+    B_PREDICTION_MODE this_mode;
+
+
+    int label_count;
+    int this_segment_rd = 0;
+    int label_mv_thresh;
+    int rate = 0;
+    int sbr = 0;
+    int sbd = 0;
+    int segmentyrate = 0;
+
+    vp8_variance_fn_ptr_t *v_fn_ptr;
+
+    ENTROPY_CONTEXT_PLANES t_above, t_left;
+    ENTROPY_CONTEXT *ta;
+    ENTROPY_CONTEXT *tl;
+    ENTROPY_CONTEXT_PLANES t_above_b, t_left_b;
+    ENTROPY_CONTEXT *ta_b;
+    ENTROPY_CONTEXT *tl_b;
+
+    memcpy(&t_above, x->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
+    memcpy(&t_left, x->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
+
+    ta = (ENTROPY_CONTEXT *)&t_above;
+    tl = (ENTROPY_CONTEXT *)&t_left;
+    ta_b = (ENTROPY_CONTEXT *)&t_above_b;
+    tl_b = (ENTROPY_CONTEXT *)&t_left_b;
+
+    br = 0;
+    bd = 0;
+
+    v_fn_ptr = &cpi->fn_ptr[segmentation];
+    labels = vp8_mbsplits[segmentation];
+    label_count = vp8_mbsplit_count[segmentation];
+
+    /* 64 makes this threshold really big effectively making it so that we
+     * very rarely check mvs on segments.   setting this to 1 would make mv
+     * thresh roughly equal to what it is for macroblocks
+     */
+    label_mv_thresh = 1 * bsi->mvthresh / label_count ;
+
+    /* Segmentation method overheads */
+    rate = vp8_cost_token(vp8_mbsplit_tree, vp8_mbsplit_probs, vp8_mbsplit_encodings + segmentation);
+    rate += vp8_cost_mv_ref(SPLITMV, bsi->mdcounts);
+    this_segment_rd += RDCOST(x->rdmult, x->rddiv, rate, 0);
+    br += rate;
+
+    for (i = 0; i < label_count; i++)
+    {
+        int_mv mode_mv[B_MODE_COUNT];
+        int best_label_rd = INT_MAX;
+        B_PREDICTION_MODE mode_selected = ZERO4X4;
+        int bestlabelyrate = 0;
+
+        /* search for the best motion vector on this segment */
+        for (this_mode = LEFT4X4; this_mode <= NEW4X4 ; this_mode ++)
+        {
+            int this_rd;
+            int distortion;
+            int labelyrate;
+            ENTROPY_CONTEXT_PLANES t_above_s, t_left_s;
+            ENTROPY_CONTEXT *ta_s;
+            ENTROPY_CONTEXT *tl_s;
+
+            memcpy(&t_above_s, &t_above, sizeof(ENTROPY_CONTEXT_PLANES));
+            memcpy(&t_left_s, &t_left, sizeof(ENTROPY_CONTEXT_PLANES));
+
+            ta_s = (ENTROPY_CONTEXT *)&t_above_s;
+            tl_s = (ENTROPY_CONTEXT *)&t_left_s;
+
+            if (this_mode == NEW4X4)
+            {
+                int sseshift;
+                int num00;
+                int step_param = 0;
+                int further_steps;
+                int n;
+                int thissme;
+                int bestsme = INT_MAX;
+                int_mv  temp_mv;
+                BLOCK *c;
+                BLOCKD *e;
+
+                /* Is the best so far sufficiently good that we cant justify
+                 * doing a new motion search.
+                 */
+                if (best_label_rd < label_mv_thresh)
+                    break;
+
+                if(cpi->compressor_speed)
+                {
+                    if (segmentation == BLOCK_8X16 || segmentation == BLOCK_16X8)
+                    {
+                        bsi->mvp.as_int = bsi->sv_mvp[i].as_int;
+                        if (i==1 && segmentation == BLOCK_16X8)
+                          bsi->mvp.as_int = bsi->sv_mvp[2].as_int;
+
+                        step_param = bsi->sv_istep[i];
+                    }
+
+                    /* use previous block's result as next block's MV
+                     * predictor.
+                     */
+                    if (segmentation == BLOCK_4X4 && i>0)
+                    {
+                        bsi->mvp.as_int = x->e_mbd.block[i-1].bmi.mv.as_int;
+                        if (i==4 || i==8 || i==12)
+                            bsi->mvp.as_int = x->e_mbd.block[i-4].bmi.mv.as_int;
+                        step_param = 2;
+                    }
+                }
+
+                further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param;
+
+                {
+                    int sadpb = x->sadperbit4;
+                    int_mv mvp_full;
+
+                    mvp_full.as_mv.row = bsi->mvp.as_mv.row >>3;
+                    mvp_full.as_mv.col = bsi->mvp.as_mv.col >>3;
+
+                    /* find first label */
+                    n = vp8_mbsplit_offset[segmentation][i];
+
+                    c = &x->block[n];
+                    e = &x->e_mbd.block[n];
+
+                    {
+                        bestsme = cpi->diamond_search_sad(x, c, e, &mvp_full,
+                                                &mode_mv[NEW4X4], step_param,
+                                                sadpb, &num00, v_fn_ptr,
+                                                x->mvcost, bsi->ref_mv);
+
+                        n = num00;
+                        num00 = 0;
+
+                        while (n < further_steps)
+                        {
+                            n++;
+
+                            if (num00)
+                                num00--;
+                            else
+                            {
+                                thissme = cpi->diamond_search_sad(x, c, e,
+                                                    &mvp_full, &temp_mv,
+                                                    step_param + n, sadpb,
+                                                    &num00, v_fn_ptr,
+                                                    x->mvcost, bsi->ref_mv);
+
+                                if (thissme < bestsme)
+                                {
+                                    bestsme = thissme;
+                                    mode_mv[NEW4X4].as_int = temp_mv.as_int;
+                                }
+                            }
+                        }
+                    }
+
+                    sseshift = segmentation_to_sseshift[segmentation];
+
+                    /* Should we do a full search (best quality only) */
+                    if ((cpi->compressor_speed == 0) && (bestsme >> sseshift) > 4000)
+                    {
+                        /* Check if mvp_full is within the range. */
+                        vp8_clamp_mv(&mvp_full, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
+
+                        thissme = cpi->full_search_sad(x, c, e, &mvp_full,
+                                                       sadpb, 16, v_fn_ptr,
+                                                       x->mvcost, bsi->ref_mv);
+
+                        if (thissme < bestsme)
+                        {
+                            bestsme = thissme;
+                            mode_mv[NEW4X4].as_int = e->bmi.mv.as_int;
+                        }
+                        else
+                        {
+                            /* The full search result is actually worse so
+                             * re-instate the previous best vector
+                             */
+                            e->bmi.mv.as_int = mode_mv[NEW4X4].as_int;
+                        }
+                    }
+                }
+
+                if (bestsme < INT_MAX)
+                {
+                    int disto;
+                    unsigned int sse;
+                    cpi->find_fractional_mv_step(x, c, e, &mode_mv[NEW4X4],
+                        bsi->ref_mv, x->errorperbit, v_fn_ptr, x->mvcost,
+                        &disto, &sse);
+                }
+            } /* NEW4X4 */
+
+            rate = labels2mode(x, labels, i, this_mode, &mode_mv[this_mode],
+                               bsi->ref_mv, x->mvcost);
+
+            /* Trap vectors that reach beyond the UMV borders */
+            if (((mode_mv[this_mode].as_mv.row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].as_mv.row >> 3) > x->mv_row_max) ||
+                ((mode_mv[this_mode].as_mv.col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].as_mv.col >> 3) > x->mv_col_max))
+            {
+                continue;
+            }
+
+            distortion = vp8_encode_inter_mb_segment(x, labels, i) / 4;
+
+            labelyrate = rdcost_mbsegment_y(x, labels, i, ta_s, tl_s);
+            rate += labelyrate;
+
+            this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
+
+            if (this_rd < best_label_rd)
+            {
+                sbr = rate;
+                sbd = distortion;
+                bestlabelyrate = labelyrate;
+                mode_selected = this_mode;
+                best_label_rd = this_rd;
+
+                memcpy(ta_b, ta_s, sizeof(ENTROPY_CONTEXT_PLANES));
+                memcpy(tl_b, tl_s, sizeof(ENTROPY_CONTEXT_PLANES));
+
+            }
+        } /*for each 4x4 mode*/
+
+        memcpy(ta, ta_b, sizeof(ENTROPY_CONTEXT_PLANES));
+        memcpy(tl, tl_b, sizeof(ENTROPY_CONTEXT_PLANES));
+
+        labels2mode(x, labels, i, mode_selected, &mode_mv[mode_selected],
+                    bsi->ref_mv, x->mvcost);
+
+        br += sbr;
+        bd += sbd;
+        segmentyrate += bestlabelyrate;
+        this_segment_rd += best_label_rd;
+
+        if (this_segment_rd >= bsi->segment_rd)
+            break;
+
+    } /* for each label */
+
+    if (this_segment_rd < bsi->segment_rd)
+    {
+        bsi->r = br;
+        bsi->d = bd;
+        bsi->segment_yrate = segmentyrate;
+        bsi->segment_rd = this_segment_rd;
+        bsi->segment_num = segmentation;
+
+        /* store everything needed to come back to this!! */
+        for (i = 0; i < 16; i++)
+        {
+            bsi->mvs[i].as_mv = x->partition_info->bmi[i].mv.as_mv;
+            bsi->modes[i] = x->partition_info->bmi[i].mode;
+            bsi->eobs[i] = x->e_mbd.eobs[i];
+        }
+    }
+}
+
+static
+void vp8_cal_step_param(int sr, int *sp)
+{
+    int step = 0;
+
+    if (sr > MAX_FIRST_STEP) sr = MAX_FIRST_STEP;
+    else if (sr < 1) sr = 1;
+
+    while (sr>>=1)
+        step++;
+
+    *sp = MAX_MVSEARCH_STEPS - 1 - step;
+}
+
+static int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x,
+                                           int_mv *best_ref_mv, int best_rd,
+                                           int *mdcounts, int *returntotrate,
+                                           int *returnyrate, int *returndistortion,
+                                           int mvthresh)
+{
+    int i;
+    BEST_SEG_INFO bsi;
+
+    memset(&bsi, 0, sizeof(bsi));
+
+    bsi.segment_rd = best_rd;
+    bsi.ref_mv = best_ref_mv;
+    bsi.mvp.as_int = best_ref_mv->as_int;
+    bsi.mvthresh = mvthresh;
+    bsi.mdcounts = mdcounts;
+
+    for(i = 0; i < 16; i++)
+    {
+        bsi.modes[i] = ZERO4X4;
+    }
+
+    if(cpi->compressor_speed == 0)
+    {
+        /* for now, we will keep the original segmentation order
+           when in best quality mode */
+        rd_check_segment(cpi, x, &bsi, BLOCK_16X8);
+        rd_check_segment(cpi, x, &bsi, BLOCK_8X16);
+        rd_check_segment(cpi, x, &bsi, BLOCK_8X8);
+        rd_check_segment(cpi, x, &bsi, BLOCK_4X4);
+    }
+    else
+    {
+        int sr;
+
+        rd_check_segment(cpi, x, &bsi, BLOCK_8X8);
+
+        if (bsi.segment_rd < best_rd)
+        {
+            int col_min = ((best_ref_mv->as_mv.col+7)>>3) - MAX_FULL_PEL_VAL;
+            int row_min = ((best_ref_mv->as_mv.row+7)>>3) - MAX_FULL_PEL_VAL;
+            int col_max = (best_ref_mv->as_mv.col>>3) + MAX_FULL_PEL_VAL;
+            int row_max = (best_ref_mv->as_mv.row>>3) + MAX_FULL_PEL_VAL;
+
+            int tmp_col_min = x->mv_col_min;
+            int tmp_col_max = x->mv_col_max;
+            int tmp_row_min = x->mv_row_min;
+            int tmp_row_max = x->mv_row_max;
+
+            /* Get intersection of UMV window and valid MV window to reduce # of checks in diamond search. */
+            if (x->mv_col_min < col_min )
+                x->mv_col_min = col_min;
+            if (x->mv_col_max > col_max )
+                x->mv_col_max = col_max;
+            if (x->mv_row_min < row_min )
+                x->mv_row_min = row_min;
+            if (x->mv_row_max > row_max )
+                x->mv_row_max = row_max;
+
+            /* Get 8x8 result */
+            bsi.sv_mvp[0].as_int = bsi.mvs[0].as_int;
+            bsi.sv_mvp[1].as_int = bsi.mvs[2].as_int;
+            bsi.sv_mvp[2].as_int = bsi.mvs[8].as_int;
+            bsi.sv_mvp[3].as_int = bsi.mvs[10].as_int;
+
+            /* Use 8x8 result as 16x8/8x16's predictor MV. Adjust search range according to the closeness of 2 MV. */
+            /* block 8X16 */
+            {
+                sr = MAXF((abs(bsi.sv_mvp[0].as_mv.row - bsi.sv_mvp[2].as_mv.row))>>3, (abs(bsi.sv_mvp[0].as_mv.col - bsi.sv_mvp[2].as_mv.col))>>3);
+                vp8_cal_step_param(sr, &bsi.sv_istep[0]);
+
+                sr = MAXF((abs(bsi.sv_mvp[1].as_mv.row - bsi.sv_mvp[3].as_mv.row))>>3, (abs(bsi.sv_mvp[1].as_mv.col - bsi.sv_mvp[3].as_mv.col))>>3);
+                vp8_cal_step_param(sr, &bsi.sv_istep[1]);
+
+                rd_check_segment(cpi, x, &bsi, BLOCK_8X16);
+            }
+
+            /* block 16X8 */
+            {
+                sr = MAXF((abs(bsi.sv_mvp[0].as_mv.row - bsi.sv_mvp[1].as_mv.row))>>3, (abs(bsi.sv_mvp[0].as_mv.col - bsi.sv_mvp[1].as_mv.col))>>3);
+                vp8_cal_step_param(sr, &bsi.sv_istep[0]);
+
+                sr = MAXF((abs(bsi.sv_mvp[2].as_mv.row - bsi.sv_mvp[3].as_mv.row))>>3, (abs(bsi.sv_mvp[2].as_mv.col - bsi.sv_mvp[3].as_mv.col))>>3);
+                vp8_cal_step_param(sr, &bsi.sv_istep[1]);
+
+                rd_check_segment(cpi, x, &bsi, BLOCK_16X8);
+            }
+
+            /* If 8x8 is better than 16x8/8x16, then do 4x4 search */
+            /* Not skip 4x4 if speed=0 (good quality) */
+            if (cpi->sf.no_skip_block4x4_search || bsi.segment_num == BLOCK_8X8)  /* || (sv_segment_rd8x8-bsi.segment_rd) < sv_segment_rd8x8>>5) */
+            {
+                bsi.mvp.as_int = bsi.sv_mvp[0].as_int;
+                rd_check_segment(cpi, x, &bsi, BLOCK_4X4);
+            }
+
+            /* restore UMV window */
+            x->mv_col_min = tmp_col_min;
+            x->mv_col_max = tmp_col_max;
+            x->mv_row_min = tmp_row_min;
+            x->mv_row_max = tmp_row_max;
+        }
+    }
+
+    /* set it to the best */
+    for (i = 0; i < 16; i++)
+    {
+        BLOCKD *bd = &x->e_mbd.block[i];
+
+        bd->bmi.mv.as_int = bsi.mvs[i].as_int;
+        *bd->eob = bsi.eobs[i];
+    }
+
+    *returntotrate = bsi.r;
+    *returndistortion = bsi.d;
+    *returnyrate = bsi.segment_yrate;
+
+    /* save partitions */
+    x->e_mbd.mode_info_context->mbmi.partitioning = bsi.segment_num;
+    x->partition_info->count = vp8_mbsplit_count[bsi.segment_num];
+
+    for (i = 0; i < x->partition_info->count; i++)
+    {
+        int j;
+
+        j = vp8_mbsplit_offset[bsi.segment_num][i];
+
+        x->partition_info->bmi[i].mode = bsi.modes[j];
+        x->partition_info->bmi[i].mv.as_mv = bsi.mvs[j].as_mv;
+    }
+    /*
+     * used to set x->e_mbd.mode_info_context->mbmi.mv.as_int
+     */
+    x->partition_info->bmi[15].mv.as_int = bsi.mvs[15].as_int;
+
+    return bsi.segment_rd;
+}
+
+/* The improved MV prediction */
+void vp8_mv_pred
+(
+    VP8_COMP *cpi,
+    MACROBLOCKD *xd,
+    const MODE_INFO *here,
+    int_mv *mvp,
+    int refframe,
+    int *ref_frame_sign_bias,
+    int *sr,
+    int near_sadidx[]
+)
+{
+    const MODE_INFO *above = here - xd->mode_info_stride;
+    const MODE_INFO *left = here - 1;
+    const MODE_INFO *aboveleft = above - 1;
+    int_mv           near_mvs[8];
+    int              near_ref[8];
+    int_mv           mv;
+    int              vcnt=0;
+    int              find=0;
+    int              mb_offset;
+
+    int              mvx[8];
+    int              mvy[8];
+    int              i;
+
+    mv.as_int = 0;
+
+    if(here->mbmi.ref_frame != INTRA_FRAME)
+    {
+        near_mvs[0].as_int = near_mvs[1].as_int = near_mvs[2].as_int = near_mvs[3].as_int = near_mvs[4].as_int = near_mvs[5].as_int = near_mvs[6].as_int = near_mvs[7].as_int = 0;
+        near_ref[0] = near_ref[1] = near_ref[2] = near_ref[3] = near_ref[4] = near_ref[5] = near_ref[6] = near_ref[7] = 0;
+
+        /* read in 3 nearby block's MVs from current frame as prediction
+         * candidates.
+         */
+        if (above->mbmi.ref_frame != INTRA_FRAME)
+        {
+            near_mvs[vcnt].as_int = above->mbmi.mv.as_int;
+            mv_bias(ref_frame_sign_bias[above->mbmi.ref_frame], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+            near_ref[vcnt] =  above->mbmi.ref_frame;
+        }
+        vcnt++;
+        if (left->mbmi.ref_frame != INTRA_FRAME)
+        {
+            near_mvs[vcnt].as_int = left->mbmi.mv.as_int;
+            mv_bias(ref_frame_sign_bias[left->mbmi.ref_frame], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+            near_ref[vcnt] =  left->mbmi.ref_frame;
+        }
+        vcnt++;
+        if (aboveleft->mbmi.ref_frame != INTRA_FRAME)
+        {
+            near_mvs[vcnt].as_int = aboveleft->mbmi.mv.as_int;
+            mv_bias(ref_frame_sign_bias[aboveleft->mbmi.ref_frame], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+            near_ref[vcnt] =  aboveleft->mbmi.ref_frame;
+        }
+        vcnt++;
+
+        /* read in 5 nearby block's MVs from last frame. */
+        if(cpi->common.last_frame_type != KEY_FRAME)
+        {
+            mb_offset = (-xd->mb_to_top_edge/128 + 1) * (xd->mode_info_stride +1) + (-xd->mb_to_left_edge/128 +1) ;
+
+            /* current in last frame */
+            if (cpi->lf_ref_frame[mb_offset] != INTRA_FRAME)
+            {
+                near_mvs[vcnt].as_int = cpi->lfmv[mb_offset].as_int;
+                mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+                near_ref[vcnt] =  cpi->lf_ref_frame[mb_offset];
+            }
+            vcnt++;
+
+            /* above in last frame */
+            if (cpi->lf_ref_frame[mb_offset - xd->mode_info_stride-1] != INTRA_FRAME)
+            {
+                near_mvs[vcnt].as_int = cpi->lfmv[mb_offset - xd->mode_info_stride-1].as_int;
+                mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset - xd->mode_info_stride-1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+                near_ref[vcnt] =  cpi->lf_ref_frame[mb_offset - xd->mode_info_stride-1];
+            }
+            vcnt++;
+
+            /* left in last frame */
+            if (cpi->lf_ref_frame[mb_offset-1] != INTRA_FRAME)
+            {
+                near_mvs[vcnt].as_int = cpi->lfmv[mb_offset -1].as_int;
+                mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset -1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+                near_ref[vcnt] =  cpi->lf_ref_frame[mb_offset - 1];
+            }
+            vcnt++;
+
+            /* right in last frame */
+            if (cpi->lf_ref_frame[mb_offset +1] != INTRA_FRAME)
+            {
+                near_mvs[vcnt].as_int = cpi->lfmv[mb_offset +1].as_int;
+                mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset +1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+                near_ref[vcnt] =  cpi->lf_ref_frame[mb_offset +1];
+            }
+            vcnt++;
+
+            /* below in last frame */
+            if (cpi->lf_ref_frame[mb_offset + xd->mode_info_stride +1] != INTRA_FRAME)
+            {
+                near_mvs[vcnt].as_int = cpi->lfmv[mb_offset + xd->mode_info_stride +1].as_int;
+                mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset + xd->mode_info_stride +1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
+                near_ref[vcnt] =  cpi->lf_ref_frame[mb_offset + xd->mode_info_stride +1];
+            }
+            vcnt++;
+        }
+
+        for(i=0; i< vcnt; i++)
+        {
+            if(near_ref[near_sadidx[i]] != INTRA_FRAME)
+            {
+                if(here->mbmi.ref_frame == near_ref[near_sadidx[i]])
+                {
+                    mv.as_int = near_mvs[near_sadidx[i]].as_int;
+                    find = 1;
+                    if (i < 3)
+                        *sr = 3;
+                    else
+                        *sr = 2;
+                    break;
+                }
+            }
+        }
+
+        if(!find)
+        {
+            for(i=0; i<vcnt; i++)
+            {
+                mvx[i] = near_mvs[i].as_mv.row;
+                mvy[i] = near_mvs[i].as_mv.col;
+            }
+
+            insertsortmv(mvx, vcnt);
+            insertsortmv(mvy, vcnt);
+            mv.as_mv.row = mvx[vcnt/2];
+            mv.as_mv.col = mvy[vcnt/2];
+
+            /* sr is set to 0 to allow calling function to decide the search
+             * range.
+             */
+            *sr = 0;
+        }
+    }
+
+    /* Set up return values */
+    mvp->as_int = mv.as_int;
+    vp8_clamp_mv2(mvp, xd);
+}
+
+void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[])
+{
+    /* near_sad indexes:
+     *   0-cf above, 1-cf left, 2-cf aboveleft,
+     *   3-lf current, 4-lf above, 5-lf left, 6-lf right, 7-lf below
+     */
+    int near_sad[8] = {0};
+    BLOCK *b = &x->block[0];
+    unsigned char *src_y_ptr = *(b->base_src);
+
+    /* calculate sad for current frame 3 nearby MBs. */
+    if( xd->mb_to_top_edge==0 && xd->mb_to_left_edge ==0)
+    {
+        near_sad[0] = near_sad[1] = near_sad[2] = INT_MAX;
+    }else if(xd->mb_to_top_edge==0)
+    {   /* only has left MB for sad calculation. */
+        near_sad[0] = near_sad[2] = INT_MAX;
+        near_sad[1] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - 16,xd->dst.y_stride);
+    }else if(xd->mb_to_left_edge ==0)
+    {   /* only has left MB for sad calculation. */
+        near_sad[1] = near_sad[2] = INT_MAX;
+        near_sad[0] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - xd->dst.y_stride *16,xd->dst.y_stride);
+    }else
+    {
+        near_sad[0] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - xd->dst.y_stride *16,xd->dst.y_stride);
+        near_sad[1] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - 16,xd->dst.y_stride);
+        near_sad[2] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - xd->dst.y_stride *16 -16,xd->dst.y_stride);
+    }
+
+    if(cpi->common.last_frame_type != KEY_FRAME)
+    {
+        /* calculate sad for last frame 5 nearby MBs. */
+        unsigned char *pre_y_buffer = cpi->common.yv12_fb[cpi->common.lst_fb_idx].y_buffer + recon_yoffset;
+        int pre_y_stride = cpi->common.yv12_fb[cpi->common.lst_fb_idx].y_stride;
+
+        if(xd->mb_to_top_edge==0) near_sad[4] = INT_MAX;
+        if(xd->mb_to_left_edge ==0) near_sad[5] = INT_MAX;
+        if(xd->mb_to_right_edge ==0) near_sad[6] = INT_MAX;
+        if(xd->mb_to_bottom_edge==0) near_sad[7] = INT_MAX;
+
+        if(near_sad[4] != INT_MAX)
+            near_sad[4] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer - pre_y_stride *16, pre_y_stride);
+        if(near_sad[5] != INT_MAX)
+            near_sad[5] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer - 16, pre_y_stride);
+        near_sad[3] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer, pre_y_stride);
+        if(near_sad[6] != INT_MAX)
+            near_sad[6] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer + 16, pre_y_stride);
+        if(near_sad[7] != INT_MAX)
+            near_sad[7] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer + pre_y_stride *16, pre_y_stride);
+    }
+
+    if(cpi->common.last_frame_type != KEY_FRAME)
+    {
+        insertsortsad(near_sad, near_sadidx, 8);
+    }else
+    {
+        insertsortsad(near_sad, near_sadidx, 3);
+    }
+}
+
+static void rd_update_mvcount(MACROBLOCK *x, int_mv *best_ref_mv)
+{
+    if (x->e_mbd.mode_info_context->mbmi.mode == SPLITMV)
+    {
+        int i;
+
+        for (i = 0; i < x->partition_info->count; i++)
+        {
+            if (x->partition_info->bmi[i].mode == NEW4X4)
+            {
+                x->MVcount[0][mv_max+((x->partition_info->bmi[i].mv.as_mv.row
+                                          - best_ref_mv->as_mv.row) >> 1)]++;
+                x->MVcount[1][mv_max+((x->partition_info->bmi[i].mv.as_mv.col
+                                          - best_ref_mv->as_mv.col) >> 1)]++;
+            }
+        }
+    }
+    else if (x->e_mbd.mode_info_context->mbmi.mode == NEWMV)
+    {
+        x->MVcount[0][mv_max+((x->e_mbd.mode_info_context->mbmi.mv.as_mv.row
+                                          - best_ref_mv->as_mv.row) >> 1)]++;
+        x->MVcount[1][mv_max+((x->e_mbd.mode_info_context->mbmi.mv.as_mv.col
+                                          - best_ref_mv->as_mv.col) >> 1)]++;
+    }
+}
+
+static int evaluate_inter_mode_rd(int mdcounts[4],
+                                  RATE_DISTORTION* rd,
+                                  int* disable_skip,
+                                  VP8_COMP *cpi, MACROBLOCK *x)
+{
+    MB_PREDICTION_MODE this_mode = x->e_mbd.mode_info_context->mbmi.mode;
+    BLOCK *b = &x->block[0];
+    MACROBLOCKD *xd = &x->e_mbd;
+    int distortion;
+    vp8_build_inter16x16_predictors_mby(&x->e_mbd, x->e_mbd.predictor, 16);
+
+    if (cpi->active_map_enabled && x->active_ptr[0] == 0) {
+        x->skip = 1;
+    }
+    else if (x->encode_breakout)
+    {
+        unsigned int sse;
+        unsigned int var;
+        unsigned int threshold = (xd->block[0].dequant[1]
+                    * xd->block[0].dequant[1] >>4);
+
+        if(threshold < x->encode_breakout)
+            threshold = x->encode_breakout;
+
+        var = vpx_variance16x16
+                (*(b->base_src), b->src_stride,
+                x->e_mbd.predictor, 16, &sse);
+
+        if (sse < threshold)
+        {
+             unsigned int q2dc = xd->block[24].dequant[0];
+            /* If theres is no codeable 2nd order dc
+               or a very small uniform pixel change change */
+            if ((sse - var < q2dc * q2dc >>4) ||
+                (sse /2 > var && sse-var < 64))
+            {
+                /* Check u and v to make sure skip is ok */
+                unsigned int sse2 = VP8_UVSSE(x);
+                if (sse2 * 2 < threshold)
+                {
+                    x->skip = 1;
+                    rd->distortion2 = sse + sse2;
+                    rd->rate2 = 500;
+
+                    /* for best_yrd calculation */
+                    rd->rate_uv = 0;
+                    rd->distortion_uv = sse2;
+
+                    *disable_skip = 1;
+                    return RDCOST(x->rdmult, x->rddiv, rd->rate2,
+                                  rd->distortion2);
+                }
+            }
+        }
+    }
+
+
+    /* Add in the Mv/mode cost */
+    rd->rate2 += vp8_cost_mv_ref(this_mode, mdcounts);
+
+    /* Y cost and distortion */
+    macro_block_yrd(x, &rd->rate_y, &distortion);
+    rd->rate2 += rd->rate_y;
+    rd->distortion2 += distortion;
+
+    /* UV cost and distortion */
+    rd_inter16x16_uv(cpi, x, &rd->rate_uv, &rd->distortion_uv,
+                     cpi->common.full_pixel);
+    rd->rate2 += rd->rate_uv;
+    rd->distortion2 += rd->distortion_uv;
+    return INT_MAX;
+}
+
+static int calculate_final_rd_costs(int this_rd,
+                                    RATE_DISTORTION* rd,
+                                    int* other_cost,
+                                    int disable_skip,
+                                    int uv_intra_tteob,
+                                    int intra_rd_penalty,
+                                    VP8_COMP *cpi, MACROBLOCK *x)
+{
+    MB_PREDICTION_MODE this_mode = x->e_mbd.mode_info_context->mbmi.mode;
+
+    /* Where skip is allowable add in the default per mb cost for the no
+     * skip case. where we then decide to skip we have to delete this and
+     * replace it with the cost of signalling a skip
+     */
+    if (cpi->common.mb_no_coeff_skip)
+    {
+        *other_cost += vp8_cost_bit(cpi->prob_skip_false, 0);
+        rd->rate2 += *other_cost;
+    }
+
+    /* Estimate the reference frame signaling cost and add it
+     * to the rolling cost variable.
+     */
+    rd->rate2 +=
+        x->ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame];
+
+    if (!disable_skip)
+    {
+        /* Test for the condition where skip block will be activated
+         * because there are no non zero coefficients and make any
+         * necessary adjustment for rate
+         */
+        if (cpi->common.mb_no_coeff_skip)
+        {
+            int i;
+            int tteob;
+            int has_y2_block = (this_mode!=SPLITMV && this_mode!=B_PRED);
+
+            tteob = 0;
+            if(has_y2_block)
+                tteob += x->e_mbd.eobs[24];
+
+            for (i = 0; i < 16; i++)
+                tteob += (x->e_mbd.eobs[i] > has_y2_block);
+
+            if (x->e_mbd.mode_info_context->mbmi.ref_frame)
+            {
+                for (i = 16; i < 24; i++)
+                    tteob += x->e_mbd.eobs[i];
+            }
+            else
+                tteob += uv_intra_tteob;
+
+            if (tteob == 0)
+            {
+                rd->rate2 -= (rd->rate_y + rd->rate_uv);
+                /* for best_yrd calculation */
+                rd->rate_uv = 0;
+
+                /* Back out no skip flag costing and add in skip flag costing */
+                if (cpi->prob_skip_false)
+                {
+                    int prob_skip_cost;
+
+                    prob_skip_cost = vp8_cost_bit(cpi->prob_skip_false, 1);
+                    prob_skip_cost -= vp8_cost_bit(cpi->prob_skip_false, 0);
+                    rd->rate2 += prob_skip_cost;
+                    *other_cost += prob_skip_cost;
+                }
+            }
+        }
+        /* Calculate the final RD estimate for this mode */
+        this_rd = RDCOST(x->rdmult, x->rddiv, rd->rate2, rd->distortion2);
+        if (this_rd < INT_MAX && x->e_mbd.mode_info_context->mbmi.ref_frame
+                                 == INTRA_FRAME)
+            this_rd += intra_rd_penalty;
+    }
+    return this_rd;
+}
+
+static void update_best_mode(BEST_MODE* best_mode, int this_rd,
+                             RATE_DISTORTION* rd, int other_cost, MACROBLOCK *x)
+{
+    MB_PREDICTION_MODE this_mode = x->e_mbd.mode_info_context->mbmi.mode;
+
+    other_cost +=
+    x->ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame];
+
+    /* Calculate the final y RD estimate for this mode */
+    best_mode->yrd = RDCOST(x->rdmult, x->rddiv, (rd->rate2-rd->rate_uv-other_cost),
+                      (rd->distortion2-rd->distortion_uv));
+
+    best_mode->rd = this_rd;
+    memcpy(&best_mode->mbmode, &x->e_mbd.mode_info_context->mbmi, sizeof(MB_MODE_INFO));
+    memcpy(&best_mode->partition, x->partition_info, sizeof(PARTITION_INFO));
+
+    if ((this_mode == B_PRED) || (this_mode == SPLITMV))
+    {
+        int i;
+        for (i = 0; i < 16; i++)
+        {
+            best_mode->bmodes[i] = x->e_mbd.block[i].bmi;
+        }
+    }
+}
+
+void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset,
+                            int recon_uvoffset, int *returnrate,
+                            int *returndistortion, int *returnintra,
+                            int mb_row, int mb_col)
+{
+    BLOCK *b = &x->block[0];
+    BLOCKD *d = &x->e_mbd.block[0];
+    MACROBLOCKD *xd = &x->e_mbd;
+    int_mv best_ref_mv_sb[2];
+    int_mv mode_mv_sb[2][MB_MODE_COUNT];
+    int_mv best_ref_mv;
+    int_mv *mode_mv;
+    MB_PREDICTION_MODE this_mode;
+    int num00;
+    int best_mode_index = 0;
+    BEST_MODE best_mode;
+
+    int i;
+    int mode_index;
+    int mdcounts[4];
+    int rate;
+    RATE_DISTORTION rd;
+    int uv_intra_rate, uv_intra_distortion, uv_intra_rate_tokenonly;
+    int uv_intra_tteob = 0;
+    int uv_intra_done = 0;
+
+    MB_PREDICTION_MODE uv_intra_mode = 0;
+    int_mv mvp;
+    int near_sadidx[8] = {0, 1, 2, 3, 4, 5, 6, 7};
+    int saddone=0;
+    /* search range got from mv_pred(). It uses step_param levels. (0-7) */
+    int sr=0;
+
+    unsigned char *plane[4][3];
+    int ref_frame_map[4];
+    int sign_bias = 0;
+
+    int intra_rd_penalty =  10* vp8_dc_quant(cpi->common.base_qindex,
+                                             cpi->common.y1dc_delta_q);
+
+#if CONFIG_TEMPORAL_DENOISING
+    unsigned int zero_mv_sse = UINT_MAX, best_sse = UINT_MAX,
+            best_rd_sse = UINT_MAX;
+#endif
+
+    mode_mv = mode_mv_sb[sign_bias];
+    best_ref_mv.as_int = 0;
+    best_mode.rd = INT_MAX;
+    best_mode.yrd = INT_MAX;
+    best_mode.intra_rd = INT_MAX;
+    memset(mode_mv_sb, 0, sizeof(mode_mv_sb));
+    memset(&best_mode.mbmode, 0, sizeof(best_mode.mbmode));
+    memset(&best_mode.bmodes, 0, sizeof(best_mode.bmodes));
+
+    /* Setup search priorities */
+    get_reference_search_order(cpi, ref_frame_map);
+
+    /* Check to see if there is at least 1 valid reference frame that we need
+     * to calculate near_mvs.
+     */
+    if (ref_frame_map[1] > 0)
+    {
+        sign_bias = vp8_find_near_mvs_bias(&x->e_mbd,
+                                           x->e_mbd.mode_info_context,
+                                           mode_mv_sb,
+                                           best_ref_mv_sb,
+                                           mdcounts,
+                                           ref_frame_map[1],
+                                           cpi->common.ref_frame_sign_bias);
+
+        mode_mv = mode_mv_sb[sign_bias];
+        best_ref_mv.as_int = best_ref_mv_sb[sign_bias].as_int;
+    }
+
+    get_predictor_pointers(cpi, plane, recon_yoffset, recon_uvoffset);
+
+    *returnintra = INT_MAX;
+    /* Count of the number of MBs tested so far this frame */
+    x->mbs_tested_so_far++;
+
+    x->skip = 0;
+
+    for (mode_index = 0; mode_index < MAX_MODES; mode_index++)
+    {
+        int this_rd = INT_MAX;
+        int disable_skip = 0;
+        int other_cost = 0;
+        int this_ref_frame = ref_frame_map[vp8_ref_frame_order[mode_index]];
+
+        /* Test best rd so far against threshold for trying this mode. */
+        if (best_mode.rd <= x->rd_threshes[mode_index])
+            continue;
+
+        if (this_ref_frame < 0)
+            continue;
+
+        /* These variables hold are rolling total cost and distortion for
+         * this mode
+         */
+        rd.rate2 = 0;
+        rd.distortion2 = 0;
+
+        this_mode = vp8_mode_order[mode_index];
+
+        x->e_mbd.mode_info_context->mbmi.mode = this_mode;
+        x->e_mbd.mode_info_context->mbmi.ref_frame = this_ref_frame;
+
+        /* Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
+         * unless ARNR filtering is enabled in which case we want
+         * an unfiltered alternative
+         */
+        if (cpi->is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0))
+        {
+            if (this_mode != ZEROMV || x->e_mbd.mode_info_context->mbmi.ref_frame != ALTREF_FRAME)
+                continue;
+        }
+
+        /* everything but intra */
+        if (x->e_mbd.mode_info_context->mbmi.ref_frame)
+        {
+            x->e_mbd.pre.y_buffer = plane[this_ref_frame][0];
+            x->e_mbd.pre.u_buffer = plane[this_ref_frame][1];
+            x->e_mbd.pre.v_buffer = plane[this_ref_frame][2];
+
+            if (sign_bias != cpi->common.ref_frame_sign_bias[this_ref_frame])
+            {
+                sign_bias = cpi->common.ref_frame_sign_bias[this_ref_frame];
+                mode_mv = mode_mv_sb[sign_bias];
+                best_ref_mv.as_int = best_ref_mv_sb[sign_bias].as_int;
+            }
+        }
+
+        /* Check to see if the testing frequency for this mode is at its
+         * max If so then prevent it from being tested and increase the
+         * threshold for its testing
+         */
+        if (x->mode_test_hit_counts[mode_index] && (cpi->mode_check_freq[mode_index] > 1))
+        {
+            if (x->mbs_tested_so_far  <= cpi->mode_check_freq[mode_index] * x->mode_test_hit_counts[mode_index])
+            {
+                /* Increase the threshold for coding this mode to make it
+                 * less likely to be chosen
+                 */
+                x->rd_thresh_mult[mode_index] += 4;
+
+                if (x->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
+                    x->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
+
+                x->rd_threshes[mode_index] =
+                    (cpi->rd_baseline_thresh[mode_index] >> 7) *
+                    x->rd_thresh_mult[mode_index];
+
+                continue;
+            }
+        }
+
+        /* We have now reached the point where we are going to test the
+         * current mode so increment the counter for the number of times
+         * it has been tested
+         */
+        x->mode_test_hit_counts[mode_index] ++;
+
+        /* Experimental code. Special case for gf and arf zeromv modes.
+         * Increase zbin size to supress noise
+         */
+        if (x->zbin_mode_boost_enabled)
+        {
+            if ( this_ref_frame == INTRA_FRAME )
+                x->zbin_mode_boost = 0;
+            else
+            {
+                if (vp8_mode_order[mode_index] == ZEROMV)
+                {
+                    if (this_ref_frame != LAST_FRAME)
+                        x->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
+                    else
+                        x->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST;
+                }
+                else if (vp8_mode_order[mode_index] == SPLITMV)
+                    x->zbin_mode_boost = 0;
+                else
+                    x->zbin_mode_boost = MV_ZBIN_BOOST;
+            }
+
+            vp8_update_zbin_extra(cpi, x);
+        }
+
+        if(!uv_intra_done && this_ref_frame == INTRA_FRAME)
+        {
+            rd_pick_intra_mbuv_mode(x, &uv_intra_rate,
+                                    &uv_intra_rate_tokenonly,
+                                    &uv_intra_distortion);
+            uv_intra_mode = x->e_mbd.mode_info_context->mbmi.uv_mode;
+
+            /*
+             * Total of the eobs is used later to further adjust rate2. Since uv
+             * block's intra eobs will be overwritten when we check inter modes,
+             * we need to save uv_intra_tteob here.
+             */
+            for (i = 16; i < 24; i++)
+                uv_intra_tteob += x->e_mbd.eobs[i];
+
+            uv_intra_done = 1;
+        }
+
+        switch (this_mode)
+        {
+        case B_PRED:
+        {
+            int tmp_rd;
+
+            /* Note the rate value returned here includes the cost of
+             * coding the BPRED mode: x->mbmode_cost[x->e_mbd.frame_type][BPRED]
+             */
+            int distortion;
+            tmp_rd = rd_pick_intra4x4mby_modes(x, &rate, &rd.rate_y, &distortion, best_mode.yrd);
+            rd.rate2 += rate;
+            rd.distortion2 += distortion;
+
+            if(tmp_rd < best_mode.yrd)
+            {
+                rd.rate2 += uv_intra_rate;
+                rd.rate_uv = uv_intra_rate_tokenonly;
+                rd.distortion2 += uv_intra_distortion;
+                rd.distortion_uv = uv_intra_distortion;
+            }
+            else
+            {
+                this_rd = INT_MAX;
+                disable_skip = 1;
+            }
+        }
+        break;
+
+        case SPLITMV:
+        {
+            int tmp_rd;
+            int this_rd_thresh;
+            int distortion;
+
+            this_rd_thresh = (vp8_ref_frame_order[mode_index] == 1) ?
+                x->rd_threshes[THR_NEW1] : x->rd_threshes[THR_NEW3];
+            this_rd_thresh = (vp8_ref_frame_order[mode_index] == 2) ?
+                x->rd_threshes[THR_NEW2] : this_rd_thresh;
+
+            tmp_rd = vp8_rd_pick_best_mbsegmentation(cpi, x, &best_ref_mv,
+                                                     best_mode.yrd, mdcounts,
+                                                     &rate, &rd.rate_y, &distortion, this_rd_thresh) ;
+
+            rd.rate2 += rate;
+            rd.distortion2 += distortion;
+
+            /* If even the 'Y' rd value of split is higher than best so far
+             * then dont bother looking at UV
+             */
+            if (tmp_rd < best_mode.yrd)
+            {
+                /* Now work out UV cost and add it in */
+                rd_inter4x4_uv(cpi, x, &rd.rate_uv, &rd.distortion_uv, cpi->common.full_pixel);
+                rd.rate2 += rd.rate_uv;
+                rd.distortion2 += rd.distortion_uv;
+            }
+            else
+            {
+                this_rd = INT_MAX;
+                disable_skip = 1;
+            }
+        }
+        break;
+        case DC_PRED:
+        case V_PRED:
+        case H_PRED:
+        case TM_PRED:
+        {
+            int distortion;
+            x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
+
+            vp8_build_intra_predictors_mby_s(xd,
+                                             xd->dst.y_buffer - xd->dst.y_stride,
+                                             xd->dst.y_buffer - 1,
+                                             xd->dst.y_stride,
+                                             xd->predictor,
+                                             16);
+            macro_block_yrd(x, &rd.rate_y, &distortion) ;
+            rd.rate2 += rd.rate_y;
+            rd.distortion2 += distortion;
+            rd.rate2 += x->mbmode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.mode];
+            rd.rate2 += uv_intra_rate;
+            rd.rate_uv = uv_intra_rate_tokenonly;
+            rd.distortion2 += uv_intra_distortion;
+            rd.distortion_uv = uv_intra_distortion;
+        }
+        break;
+
+        case NEWMV:
+        {
+            int thissme;
+            int bestsme = INT_MAX;
+            int step_param = cpi->sf.first_step;
+            int further_steps;
+            int n;
+            int do_refine=1;   /* If last step (1-away) of n-step search doesn't pick the center point as the best match,
+                                  we will do a final 1-away diamond refining search  */
+
+            int sadpb = x->sadperbit16;
+            int_mv mvp_full;
+
+            int col_min = ((best_ref_mv.as_mv.col+7)>>3) - MAX_FULL_PEL_VAL;
+            int row_min = ((best_ref_mv.as_mv.row+7)>>3) - MAX_FULL_PEL_VAL;
+            int col_max = (best_ref_mv.as_mv.col>>3) + MAX_FULL_PEL_VAL;
+            int row_max = (best_ref_mv.as_mv.row>>3) + MAX_FULL_PEL_VAL;
+
+            int tmp_col_min = x->mv_col_min;
+            int tmp_col_max = x->mv_col_max;
+            int tmp_row_min = x->mv_row_min;
+            int tmp_row_max = x->mv_row_max;
+
+            if(!saddone)
+            {
+                vp8_cal_sad(cpi,xd,x, recon_yoffset ,&near_sadidx[0] );
+                saddone = 1;
+            }
+
+            vp8_mv_pred(cpi, &x->e_mbd, x->e_mbd.mode_info_context, &mvp,
+                        x->e_mbd.mode_info_context->mbmi.ref_frame, cpi->common.ref_frame_sign_bias, &sr, &near_sadidx[0]);
+
+            mvp_full.as_mv.col = mvp.as_mv.col>>3;
+            mvp_full.as_mv.row = mvp.as_mv.row>>3;
+
+            /* Get intersection of UMV window and valid MV window to
+             * reduce # of checks in diamond search.
+             */
+            if (x->mv_col_min < col_min )
+                x->mv_col_min = col_min;
+            if (x->mv_col_max > col_max )
+                x->mv_col_max = col_max;
+            if (x->mv_row_min < row_min )
+                x->mv_row_min = row_min;
+            if (x->mv_row_max > row_max )
+                x->mv_row_max = row_max;
+
+            /* adjust search range according to sr from mv prediction */
+            if(sr > step_param)
+                step_param = sr;
+
+            /* Initial step/diamond search */
+            {
+                bestsme = cpi->diamond_search_sad(x, b, d, &mvp_full, &d->bmi.mv,
+                                        step_param, sadpb, &num00,
+                                        &cpi->fn_ptr[BLOCK_16X16],
+                                        x->mvcost, &best_ref_mv);
+                mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+
+                /* Further step/diamond searches as necessary */
+                further_steps = (cpi->sf.max_step_search_steps - 1) - step_param;
+
+                n = num00;
+                num00 = 0;
+
+                /* If there won't be more n-step search, check to see if refining search is needed. */
+                if (n > further_steps)
+                    do_refine = 0;
+
+                while (n < further_steps)
+                {
+                    n++;
+
+                    if (num00)
+                        num00--;
+                    else
+                    {
+                        thissme = cpi->diamond_search_sad(x, b, d, &mvp_full,
+                                    &d->bmi.mv, step_param + n, sadpb, &num00,
+                                    &cpi->fn_ptr[BLOCK_16X16], x->mvcost,
+                                    &best_ref_mv);
+
+                        /* check to see if refining search is needed. */
+                        if (num00 > (further_steps-n))
+                            do_refine = 0;
+
+                        if (thissme < bestsme)
+                        {
+                            bestsme = thissme;
+                            mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+                        }
+                        else
+                        {
+                            d->bmi.mv.as_int = mode_mv[NEWMV].as_int;
+                        }
+                    }
+                }
+            }
+
+            /* final 1-away diamond refining search */
+            if (do_refine == 1)
+            {
+                int search_range;
+
+                search_range = 8;
+
+                thissme = cpi->refining_search_sad(x, b, d, &d->bmi.mv, sadpb,
+                                       search_range, &cpi->fn_ptr[BLOCK_16X16],
+                                       x->mvcost, &best_ref_mv);
+
+                if (thissme < bestsme)
+                {
+                    bestsme = thissme;
+                    mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+                }
+                else
+                {
+                    d->bmi.mv.as_int = mode_mv[NEWMV].as_int;
+                }
+            }
+
+            x->mv_col_min = tmp_col_min;
+            x->mv_col_max = tmp_col_max;
+            x->mv_row_min = tmp_row_min;
+            x->mv_row_max = tmp_row_max;
+
+            if (bestsme < INT_MAX)
+            {
+                int dis; /* TODO: use dis in distortion calculation later. */
+                unsigned int sse;
+                cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv, &best_ref_mv,
+                                             x->errorperbit,
+                                             &cpi->fn_ptr[BLOCK_16X16],
+                                             x->mvcost, &dis, &sse);
+            }
+
+            mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
+
+            /* Add the new motion vector cost to our rolling cost variable */
+            rd.rate2 += vp8_mv_bit_cost(&mode_mv[NEWMV], &best_ref_mv, x->mvcost, 96);
+        }
+
+        case NEARESTMV:
+        case NEARMV:
+            /* Clip "next_nearest" so that it does not extend to far out
+             * of image
+             */
+            vp8_clamp_mv2(&mode_mv[this_mode], xd);
+
+            /* Do not bother proceeding if the vector (from newmv, nearest
+             * or near) is 0,0 as this should then be coded using the zeromv
+             * mode.
+             */
+            if (((this_mode == NEARMV) || (this_mode == NEARESTMV)) && (mode_mv[this_mode].as_int == 0))
+                continue;
+
+        case ZEROMV:
+
+            /* Trap vectors that reach beyond the UMV borders
+             * Note that ALL New MV, Nearest MV Near MV and Zero MV code
+             * drops through to this point because of the lack of break
+             * statements in the previous two cases.
+             */
+            if (((mode_mv[this_mode].as_mv.row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].as_mv.row >> 3) > x->mv_row_max) ||
+                ((mode_mv[this_mode].as_mv.col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].as_mv.col >> 3) > x->mv_col_max))
+                continue;
+
+            vp8_set_mbmode_and_mvs(x, this_mode, &mode_mv[this_mode]);
+            this_rd = evaluate_inter_mode_rd(mdcounts, &rd,
+                                             &disable_skip, cpi, x);
+            break;
+
+        default:
+            break;
+        }
+
+        this_rd = calculate_final_rd_costs(this_rd, &rd, &other_cost,
+                                           disable_skip, uv_intra_tteob,
+                                           intra_rd_penalty, cpi, x);
+
+        /* Keep record of best intra distortion */
+        if ((x->e_mbd.mode_info_context->mbmi.ref_frame == INTRA_FRAME) &&
+            (this_rd < best_mode.intra_rd) )
+        {
+          best_mode.intra_rd = this_rd;
+            *returnintra = rd.distortion2 ;
+        }
+#if CONFIG_TEMPORAL_DENOISING
+        if (cpi->oxcf.noise_sensitivity)
+        {
+            unsigned int sse;
+            vp8_get_inter_mbpred_error(x,&cpi->fn_ptr[BLOCK_16X16],&sse,
+                                   mode_mv[this_mode]);
+
+            if (sse < best_rd_sse)
+                best_rd_sse = sse;
+
+            /* Store for later use by denoiser. */
+            if (this_mode == ZEROMV && sse < zero_mv_sse )
+            {
+                zero_mv_sse = sse;
+                x->best_zeromv_reference_frame =
+                        x->e_mbd.mode_info_context->mbmi.ref_frame;
+            }
+
+            /* Store the best NEWMV in x for later use in the denoiser. */
+            if (x->e_mbd.mode_info_context->mbmi.mode == NEWMV &&
+                    sse < best_sse)
+            {
+                best_sse = sse;
+                vp8_get_inter_mbpred_error(x,&cpi->fn_ptr[BLOCK_16X16],&best_sse,
+                                       mode_mv[this_mode]);
+                x->best_sse_inter_mode = NEWMV;
+                x->best_sse_mv = x->e_mbd.mode_info_context->mbmi.mv;
+                x->need_to_clamp_best_mvs =
+                    x->e_mbd.mode_info_context->mbmi.need_to_clamp_mvs;
+                x->best_reference_frame =
+                    x->e_mbd.mode_info_context->mbmi.ref_frame;
+            }
+        }
+#endif
+
+        /* Did this mode help.. i.i is it the new best mode */
+        if (this_rd < best_mode.rd || x->skip)
+        {
+            /* Note index of best mode so far */
+            best_mode_index = mode_index;
+            *returnrate = rd.rate2;
+            *returndistortion = rd.distortion2;
+            if (this_mode <= B_PRED)
+            {
+                x->e_mbd.mode_info_context->mbmi.uv_mode = uv_intra_mode;
+                /* required for left and above block mv */
+                x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
+            }
+            update_best_mode(&best_mode, this_rd, &rd, other_cost, x);
+
+
+            /* Testing this mode gave rise to an improvement in best error
+             * score. Lower threshold a bit for next time
+             */
+            x->rd_thresh_mult[mode_index] =
+                (x->rd_thresh_mult[mode_index] >= (MIN_THRESHMULT + 2)) ?
+                    x->rd_thresh_mult[mode_index] - 2 : MIN_THRESHMULT;
+        }
+
+        /* If the mode did not help improve the best error case then raise
+         * the threshold for testing that mode next time around.
+         */
+        else
+        {
+            x->rd_thresh_mult[mode_index] += 4;
+
+            if (x->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
+                x->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
+        }
+        x->rd_threshes[mode_index] =
+            (cpi->rd_baseline_thresh[mode_index] >> 7) *
+                x->rd_thresh_mult[mode_index];
+
+        if (x->skip)
+            break;
+
+    }
+
+    /* Reduce the activation RD thresholds for the best choice mode */
+    if ((cpi->rd_baseline_thresh[best_mode_index] > 0) && (cpi->rd_baseline_thresh[best_mode_index] < (INT_MAX >> 2)))
+    {
+        int best_adjustment = (x->rd_thresh_mult[best_mode_index] >> 2);
+
+        x->rd_thresh_mult[best_mode_index] =
+            (x->rd_thresh_mult[best_mode_index] >=
+                (MIN_THRESHMULT + best_adjustment)) ?
+                    x->rd_thresh_mult[best_mode_index] - best_adjustment :
+                    MIN_THRESHMULT;
+        x->rd_threshes[best_mode_index] =
+            (cpi->rd_baseline_thresh[best_mode_index] >> 7) *
+                x->rd_thresh_mult[best_mode_index];
+    }
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity)
+    {
+        int block_index = mb_row * cpi->common.mb_cols + mb_col;
+        if (x->best_sse_inter_mode == DC_PRED)
+        {
+            /* No best MV found. */
+            x->best_sse_inter_mode = best_mode.mbmode.mode;
+            x->best_sse_mv = best_mode.mbmode.mv;
+            x->need_to_clamp_best_mvs = best_mode.mbmode.need_to_clamp_mvs;
+            x->best_reference_frame = best_mode.mbmode.ref_frame;
+            best_sse = best_rd_sse;
+        }
+        vp8_denoiser_denoise_mb(&cpi->denoiser, x, best_sse, zero_mv_sse,
+                                recon_yoffset, recon_uvoffset,
+                                &cpi->common.lf_info, mb_row, mb_col,
+                                block_index);
+
+        /* Reevaluate ZEROMV after denoising. */
+        if (best_mode.mbmode.ref_frame == INTRA_FRAME &&
+            x->best_zeromv_reference_frame != INTRA_FRAME)
+        {
+            int this_rd = INT_MAX;
+            int disable_skip = 0;
+            int other_cost = 0;
+            int this_ref_frame = x->best_zeromv_reference_frame;
+            rd.rate2 = x->ref_frame_cost[this_ref_frame] +
+                    vp8_cost_mv_ref(ZEROMV, mdcounts);
+            rd.distortion2 = 0;
+
+            /* set up the proper prediction buffers for the frame */
+            x->e_mbd.mode_info_context->mbmi.ref_frame = this_ref_frame;
+            x->e_mbd.pre.y_buffer = plane[this_ref_frame][0];
+            x->e_mbd.pre.u_buffer = plane[this_ref_frame][1];
+            x->e_mbd.pre.v_buffer = plane[this_ref_frame][2];
+
+            x->e_mbd.mode_info_context->mbmi.mode = ZEROMV;
+            x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+            x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
+
+            this_rd = evaluate_inter_mode_rd(mdcounts, &rd, &disable_skip, cpi, x);
+            this_rd = calculate_final_rd_costs(this_rd, &rd, &other_cost,
+                                               disable_skip, uv_intra_tteob,
+                                               intra_rd_penalty, cpi, x);
+            if (this_rd < best_mode.rd || x->skip)
+            {
+                *returnrate = rd.rate2;
+                *returndistortion = rd.distortion2;
+                update_best_mode(&best_mode, this_rd, &rd, other_cost, x);
+            }
+        }
+
+    }
+#endif
+
+    if (cpi->is_src_frame_alt_ref &&
+        (best_mode.mbmode.mode != ZEROMV || best_mode.mbmode.ref_frame != ALTREF_FRAME))
+    {
+        x->e_mbd.mode_info_context->mbmi.mode = ZEROMV;
+        x->e_mbd.mode_info_context->mbmi.ref_frame = ALTREF_FRAME;
+        x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
+        x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+        x->e_mbd.mode_info_context->mbmi.mb_skip_coeff =
+                                        (cpi->common.mb_no_coeff_skip);
+        x->e_mbd.mode_info_context->mbmi.partitioning = 0;
+        return;
+    }
+
+
+    /* macroblock modes */
+    memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mode.mbmode, sizeof(MB_MODE_INFO));
+
+    if (best_mode.mbmode.mode == B_PRED)
+    {
+        for (i = 0; i < 16; i++)
+            xd->mode_info_context->bmi[i].as_mode = best_mode.bmodes[i].as_mode;
+    }
+
+    if (best_mode.mbmode.mode == SPLITMV)
+    {
+        for (i = 0; i < 16; i++)
+            xd->mode_info_context->bmi[i].mv.as_int = best_mode.bmodes[i].mv.as_int;
+
+        memcpy(x->partition_info, &best_mode.partition, sizeof(PARTITION_INFO));
+
+        x->e_mbd.mode_info_context->mbmi.mv.as_int =
+                                      x->partition_info->bmi[15].mv.as_int;
+    }
+
+    if (sign_bias
+        != cpi->common.ref_frame_sign_bias[xd->mode_info_context->mbmi.ref_frame])
+        best_ref_mv.as_int = best_ref_mv_sb[!sign_bias].as_int;
+
+    rd_update_mvcount(x, &best_ref_mv);
+}
+
+void vp8_rd_pick_intra_mode(MACROBLOCK *x, int *rate_)
+{
+    int error4x4, error16x16;
+    int rate4x4, rate16x16 = 0, rateuv;
+    int dist4x4, dist16x16, distuv;
+    int rate;
+    int rate4x4_tokenonly = 0;
+    int rate16x16_tokenonly = 0;
+    int rateuv_tokenonly = 0;
+
+    x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
+
+    rd_pick_intra_mbuv_mode(x, &rateuv, &rateuv_tokenonly, &distuv);
+    rate = rateuv;
+
+    error16x16 = rd_pick_intra16x16mby_mode(x, &rate16x16, &rate16x16_tokenonly,
+                                            &dist16x16);
+
+    error4x4 = rd_pick_intra4x4mby_modes(x, &rate4x4, &rate4x4_tokenonly,
+                                         &dist4x4, error16x16);
+
+    if (error4x4 < error16x16)
+    {
+        x->e_mbd.mode_info_context->mbmi.mode = B_PRED;
+        rate += rate4x4;
+    }
+    else
+    {
+        rate += rate16x16;
+    }
+
+    *rate_ = rate;
+}
diff --git a/media/libvpx/vp8/encoder/rdopt.h b/media/libvpx/vp8/encoder/rdopt.h
new file mode 100644
index 000000000..b4fcd10b6
--- /dev/null
+++ b/media/libvpx/vp8/encoder/rdopt.h
@@ -0,0 +1,147 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_RDOPT_H_
+#define VP8_ENCODER_RDOPT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define RDCOST(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )
+
+static void insertsortmv(int arr[], int len)
+{
+    int i, j, k;
+
+    for ( i = 1 ; i <= len-1 ; i++ )
+    {
+        for ( j = 0 ; j < i ; j++ )
+        {
+            if ( arr[j] > arr[i] )
+            {
+                int temp;
+
+                temp = arr[i];
+
+                for ( k = i; k >j; k--)
+                    arr[k] = arr[k - 1] ;
+
+                arr[j] = temp ;
+            }
+        }
+    }
+}
+
+static void insertsortsad(int arr[],int idx[], int len)
+{
+    int i, j, k;
+
+    for ( i = 1 ; i <= len-1 ; i++ )
+    {
+        for ( j = 0 ; j < i ; j++ )
+        {
+            if ( arr[j] > arr[i] )
+            {
+                int temp, tempi;
+
+                temp = arr[i];
+                tempi = idx[i];
+
+                for ( k = i; k >j; k--)
+                {
+                    arr[k] = arr[k - 1] ;
+                    idx[k] = idx[k - 1];
+                }
+
+                arr[j] = temp ;
+                idx[j] = tempi;
+            }
+        }
+    }
+}
+
+extern void vp8_initialize_rd_consts(VP8_COMP *cpi, MACROBLOCK *x, int Qvalue);
+extern void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x,
+                                   int recon_yoffset, int recon_uvoffset,
+                                   int *returnrate, int *returndistortion,
+                                   int *returnintra, int mb_row, int mb_col);
+extern void vp8_rd_pick_intra_mode(MACROBLOCK *x, int *rate);
+
+
+static void get_plane_pointers(const YV12_BUFFER_CONFIG *fb,
+                               unsigned char            *plane[3],
+                               unsigned int              recon_yoffset,
+                               unsigned int              recon_uvoffset)
+{
+    plane[0] = fb->y_buffer + recon_yoffset;
+    plane[1] = fb->u_buffer + recon_uvoffset;
+    plane[2] = fb->v_buffer + recon_uvoffset;
+}
+
+
+static void get_predictor_pointers(const VP8_COMP *cpi,
+                                       unsigned char  *plane[4][3],
+                                       unsigned int    recon_yoffset,
+                                       unsigned int    recon_uvoffset)
+{
+    if (cpi->ref_frame_flags & VP8_LAST_FRAME)
+        get_plane_pointers(&cpi->common.yv12_fb[cpi->common.lst_fb_idx],
+                           plane[LAST_FRAME], recon_yoffset, recon_uvoffset);
+
+    if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
+        get_plane_pointers(&cpi->common.yv12_fb[cpi->common.gld_fb_idx],
+                           plane[GOLDEN_FRAME], recon_yoffset, recon_uvoffset);
+
+    if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
+        get_plane_pointers(&cpi->common.yv12_fb[cpi->common.alt_fb_idx],
+                           plane[ALTREF_FRAME], recon_yoffset, recon_uvoffset);
+}
+
+
+static void get_reference_search_order(const VP8_COMP *cpi,
+                                           int             ref_frame_map[4])
+{
+    int i=0;
+
+    ref_frame_map[i++] = INTRA_FRAME;
+    if (cpi->ref_frame_flags & VP8_LAST_FRAME)
+        ref_frame_map[i++] = LAST_FRAME;
+    if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
+        ref_frame_map[i++] = GOLDEN_FRAME;
+    if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
+        ref_frame_map[i++] = ALTREF_FRAME;
+    for(; i<4; i++)
+        ref_frame_map[i] = -1;
+}
+
+
+extern void vp8_mv_pred
+(
+    VP8_COMP *cpi,
+    MACROBLOCKD *xd,
+    const MODE_INFO *here,
+    int_mv *mvp,
+    int refframe,
+    int *ref_frame_sign_bias,
+    int *sr,
+    int near_sadidx[]
+);
+void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[]);
+int VP8_UVSSE(MACROBLOCK *x);
+int vp8_cost_mv_ref(MB_PREDICTION_MODE m, const int near_mv_ref_ct[4]);
+void vp8_set_mbmode_and_mvs(MACROBLOCK *x, MB_PREDICTION_MODE mb, int_mv *mv);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_RDOPT_H_
diff --git a/media/libvpx/vp8/encoder/segmentation.c b/media/libvpx/vp8/encoder/segmentation.c
new file mode 100644
index 000000000..fdd22fceb
--- /dev/null
+++ b/media/libvpx/vp8/encoder/segmentation.c
@@ -0,0 +1,66 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "segmentation.h"
+#include "vpx_mem/vpx_mem.h"
+
+void vp8_update_gf_useage_maps(VP8_COMP *cpi, VP8_COMMON *cm, MACROBLOCK *x)
+{
+    int mb_row, mb_col;
+
+    MODE_INFO *this_mb_mode_info = cm->mi;
+
+    x->gf_active_ptr = (signed char *)cpi->gf_active_flags;
+
+    if ((cm->frame_type == KEY_FRAME) || (cm->refresh_golden_frame))
+    {
+        /* Reset Gf useage monitors */
+        memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
+        cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
+    }
+    else
+    {
+        /* for each macroblock row in image */
+        for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
+        {
+            /* for each macroblock col in image */
+            for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
+            {
+
+                /* If using golden then set GF active flag if not already set.
+                 * If using last frame 0,0 mode then leave flag as it is
+                 * else if using non 0,0 motion or intra modes then clear
+                 * flag if it is currently set
+                 */
+                if ((this_mb_mode_info->mbmi.ref_frame == GOLDEN_FRAME) || (this_mb_mode_info->mbmi.ref_frame == ALTREF_FRAME))
+                {
+                    if (*(x->gf_active_ptr) == 0)
+                    {
+                        *(x->gf_active_ptr) = 1;
+                        cpi->gf_active_count ++;
+                    }
+                }
+                else if ((this_mb_mode_info->mbmi.mode != ZEROMV) && *(x->gf_active_ptr))
+                {
+                    *(x->gf_active_ptr) = 0;
+                    cpi->gf_active_count--;
+                }
+
+                x->gf_active_ptr++;          /* Step onto next entry */
+                this_mb_mode_info++;         /* skip to next mb */
+
+            }
+
+            /* this is to account for the border */
+            this_mb_mode_info++;
+        }
+    }
+}
diff --git a/media/libvpx/vp8/encoder/segmentation.h b/media/libvpx/vp8/encoder/segmentation.h
new file mode 100644
index 000000000..6b5500594
--- /dev/null
+++ b/media/libvpx/vp8/encoder/segmentation.h
@@ -0,0 +1,28 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP8_ENCODER_SEGMENTATION_H_
+#define VP8_ENCODER_SEGMENTATION_H_
+
+#include "string.h"
+#include "vp8/common/blockd.h"
+#include "onyx_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_update_gf_useage_maps(VP8_COMP *cpi, VP8_COMMON *cm, MACROBLOCK *x);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_SEGMENTATION_H_
diff --git a/media/libvpx/vp8/encoder/temporal_filter.c b/media/libvpx/vp8/encoder/temporal_filter.c
new file mode 100644
index 000000000..ba8b00977
--- /dev/null
+++ b/media/libvpx/vp8/encoder/temporal_filter.c
@@ -0,0 +1,521 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vp8/common/onyxc_int.h"
+#include "onyx_int.h"
+#include "vp8/common/systemdependent.h"
+#include "quantize.h"
+#include "vp8/common/alloccommon.h"
+#include "mcomp.h"
+#include "firstpass.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vp8/common/extend.h"
+#include "ratectrl.h"
+#include "vp8/common/quant_common.h"
+#include "segmentation.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/common/swapyv12buffer.h"
+#include "vp8/common/threading.h"
+#include "vpx_ports/vpx_timer.h"
+
+#include <math.h>
+#include <limits.h>
+
+#define ALT_REF_MC_ENABLED 1    /* dis/enable MC in AltRef filtering */
+#define ALT_REF_SUBPEL_ENABLED 1 /* dis/enable subpel in MC AltRef filtering */
+
+#if VP8_TEMPORAL_ALT_REF
+
+static void vp8_temporal_filter_predictors_mb_c
+(
+    MACROBLOCKD *x,
+    unsigned char *y_mb_ptr,
+    unsigned char *u_mb_ptr,
+    unsigned char *v_mb_ptr,
+    int stride,
+    int mv_row,
+    int mv_col,
+    unsigned char *pred
+)
+{
+    int offset;
+    unsigned char *yptr, *uptr, *vptr;
+
+    /* Y */
+    yptr = y_mb_ptr + (mv_row >> 3) * stride + (mv_col >> 3);
+
+    if ((mv_row | mv_col) & 7)
+    {
+        x->subpixel_predict16x16(yptr, stride,
+                                    mv_col & 7, mv_row & 7, &pred[0], 16);
+    }
+    else
+    {
+        vp8_copy_mem16x16(yptr, stride, &pred[0], 16);
+    }
+
+    /* U & V */
+    mv_row >>= 1;
+    mv_col >>= 1;
+    stride = (stride + 1) >> 1;
+    offset = (mv_row >> 3) * stride + (mv_col >> 3);
+    uptr = u_mb_ptr + offset;
+    vptr = v_mb_ptr + offset;
+
+    if ((mv_row | mv_col) & 7)
+    {
+        x->subpixel_predict8x8(uptr, stride,
+                            mv_col & 7, mv_row & 7, &pred[256], 8);
+        x->subpixel_predict8x8(vptr, stride,
+                            mv_col & 7, mv_row & 7, &pred[320], 8);
+    }
+    else
+    {
+        vp8_copy_mem8x8(uptr, stride, &pred[256], 8);
+        vp8_copy_mem8x8(vptr, stride, &pred[320], 8);
+    }
+}
+void vp8_temporal_filter_apply_c
+(
+    unsigned char *frame1,
+    unsigned int stride,
+    unsigned char *frame2,
+    unsigned int block_size,
+    int strength,
+    int filter_weight,
+    unsigned int *accumulator,
+    unsigned short *count
+)
+{
+    unsigned int i, j, k;
+    int modifier;
+    int byte = 0;
+    const int rounding = strength > 0 ? 1 << (strength - 1) : 0;
+
+    for (i = 0,k = 0; i < block_size; i++)
+    {
+        for (j = 0; j < block_size; j++, k++)
+        {
+
+            int src_byte = frame1[byte];
+            int pixel_value = *frame2++;
+
+            modifier   = src_byte - pixel_value;
+            /* This is an integer approximation of:
+             * float coeff = (3.0 * modifer * modifier) / pow(2, strength);
+             * modifier =  (int)roundf(coeff > 16 ? 0 : 16-coeff);
+             */
+            modifier  *= modifier;
+            modifier  *= 3;
+            modifier  += rounding;
+            modifier >>= strength;
+
+            if (modifier > 16)
+                modifier = 16;
+
+            modifier = 16 - modifier;
+            modifier *= filter_weight;
+
+            count[k] += modifier;
+            accumulator[k] += modifier * pixel_value;
+
+            byte++;
+        }
+
+        byte += stride - block_size;
+    }
+}
+
+#if ALT_REF_MC_ENABLED
+
+static int vp8_temporal_filter_find_matching_mb_c
+(
+    VP8_COMP *cpi,
+    YV12_BUFFER_CONFIG *arf_frame,
+    YV12_BUFFER_CONFIG *frame_ptr,
+    int mb_offset,
+    int error_thresh
+)
+{
+    MACROBLOCK *x = &cpi->mb;
+    int step_param;
+    int sadpb = x->sadperbit16;
+    int bestsme = INT_MAX;
+
+    BLOCK *b = &x->block[0];
+    BLOCKD *d = &x->e_mbd.block[0];
+    int_mv best_ref_mv1;
+    int_mv best_ref_mv1_full; /* full-pixel value of best_ref_mv1 */
+
+    /* Save input state */
+    unsigned char **base_src = b->base_src;
+    int src = b->src;
+    int src_stride = b->src_stride;
+    unsigned char *base_pre = x->e_mbd.pre.y_buffer;
+    int pre = d->offset;
+    int pre_stride = x->e_mbd.pre.y_stride;
+
+    (void)error_thresh;
+
+    best_ref_mv1.as_int = 0;
+    best_ref_mv1_full.as_mv.col = best_ref_mv1.as_mv.col >>3;
+    best_ref_mv1_full.as_mv.row = best_ref_mv1.as_mv.row >>3;
+
+    /* Setup frame pointers */
+    b->base_src = &arf_frame->y_buffer;
+    b->src_stride = arf_frame->y_stride;
+    b->src = mb_offset;
+
+    x->e_mbd.pre.y_buffer = frame_ptr->y_buffer;
+    x->e_mbd.pre.y_stride = frame_ptr->y_stride;
+    d->offset = mb_offset;
+
+    /* Further step/diamond searches as necessary */
+    if (cpi->Speed < 8)
+    {
+        step_param = cpi->sf.first_step + (cpi->Speed > 5);
+    }
+    else
+    {
+        step_param = cpi->sf.first_step + 2;
+    }
+
+    /* TODO Check that the 16x16 vf & sdf are selected here */
+    /* Ignore mv costing by sending NULL cost arrays */
+    bestsme = vp8_hex_search(x, b, d, &best_ref_mv1_full, &d->bmi.mv,
+                             step_param, sadpb,
+                             &cpi->fn_ptr[BLOCK_16X16],
+                             NULL, NULL, &best_ref_mv1);
+
+#if ALT_REF_SUBPEL_ENABLED
+    /* Try sub-pixel MC? */
+    {
+        int distortion;
+        unsigned int sse;
+        /* Ignore mv costing by sending NULL cost array */
+        bestsme = cpi->find_fractional_mv_step(x, b, d,
+                                               &d->bmi.mv,
+                                               &best_ref_mv1,
+                                               x->errorperbit,
+                                               &cpi->fn_ptr[BLOCK_16X16],
+                                               NULL, &distortion, &sse);
+    }
+#endif
+
+    /* Save input state */
+    b->base_src = base_src;
+    b->src = src;
+    b->src_stride = src_stride;
+    x->e_mbd.pre.y_buffer = base_pre;
+    d->offset = pre;
+    x->e_mbd.pre.y_stride = pre_stride;
+
+    return bestsme;
+}
+#endif
+
+static void vp8_temporal_filter_iterate_c
+(
+    VP8_COMP *cpi,
+    int frame_count,
+    int alt_ref_index,
+    int strength
+)
+{
+    int byte;
+    int frame;
+    int mb_col, mb_row;
+    unsigned int filter_weight;
+    int mb_cols = cpi->common.mb_cols;
+    int mb_rows = cpi->common.mb_rows;
+    int mb_y_offset = 0;
+    int mb_uv_offset = 0;
+    DECLARE_ALIGNED(16, unsigned int, accumulator[16*16 + 8*8 + 8*8]);
+    DECLARE_ALIGNED(16, unsigned short, count[16*16 + 8*8 + 8*8]);
+    MACROBLOCKD *mbd = &cpi->mb.e_mbd;
+    YV12_BUFFER_CONFIG *f = cpi->frames[alt_ref_index];
+    unsigned char *dst1, *dst2;
+    DECLARE_ALIGNED(16, unsigned char,  predictor[16*16 + 8*8 + 8*8]);
+
+    /* Save input state */
+    unsigned char *y_buffer = mbd->pre.y_buffer;
+    unsigned char *u_buffer = mbd->pre.u_buffer;
+    unsigned char *v_buffer = mbd->pre.v_buffer;
+
+    for (mb_row = 0; mb_row < mb_rows; mb_row++)
+    {
+#if ALT_REF_MC_ENABLED
+        /* Source frames are extended to 16 pixels.  This is different than
+         *  L/A/G reference frames that have a border of 32 (VP8BORDERINPIXELS)
+         * A 6 tap filter is used for motion search.  This requires 2 pixels
+         *  before and 3 pixels after.  So the largest Y mv on a border would
+         *  then be 16 - 3.  The UV blocks are half the size of the Y and
+         *  therefore only extended by 8.  The largest mv that a UV block
+         *  can support is 8 - 3.  A UV mv is half of a Y mv.
+         *  (16 - 3) >> 1 == 6 which is greater than 8 - 3.
+         * To keep the mv in play for both Y and UV planes the max that it
+         *  can be on a border is therefore 16 - 5.
+         */
+        cpi->mb.mv_row_min = -((mb_row * 16) + (16 - 5));
+        cpi->mb.mv_row_max = ((cpi->common.mb_rows - 1 - mb_row) * 16)
+                                + (16 - 5);
+#endif
+
+        for (mb_col = 0; mb_col < mb_cols; mb_col++)
+        {
+            int i, j, k;
+            int stride;
+
+            memset(accumulator, 0, 384*sizeof(unsigned int));
+            memset(count, 0, 384*sizeof(unsigned short));
+
+#if ALT_REF_MC_ENABLED
+            cpi->mb.mv_col_min = -((mb_col * 16) + (16 - 5));
+            cpi->mb.mv_col_max = ((cpi->common.mb_cols - 1 - mb_col) * 16)
+                                    + (16 - 5);
+#endif
+
+            for (frame = 0; frame < frame_count; frame++)
+            {
+                if (cpi->frames[frame] == NULL)
+                    continue;
+
+                mbd->block[0].bmi.mv.as_mv.row = 0;
+                mbd->block[0].bmi.mv.as_mv.col = 0;
+
+                if (frame == alt_ref_index)
+                {
+                    filter_weight = 2;
+                }
+                else
+                {
+                    int err = 0;
+#if ALT_REF_MC_ENABLED
+#define THRESH_LOW   10000
+#define THRESH_HIGH  20000
+                    /* Find best match in this frame by MC */
+                    err = vp8_temporal_filter_find_matching_mb_c
+                              (cpi,
+                               cpi->frames[alt_ref_index],
+                               cpi->frames[frame],
+                               mb_y_offset,
+                               THRESH_LOW);
+#endif
+                    /* Assign higher weight to matching MB if it's error
+                     * score is lower. If not applying MC default behavior
+                     * is to weight all MBs equal.
+                     */
+                    filter_weight = err<THRESH_LOW
+                                       ? 2 : err<THRESH_HIGH ? 1 : 0;
+                }
+
+                if (filter_weight != 0)
+                {
+                    /* Construct the predictors */
+                    vp8_temporal_filter_predictors_mb_c
+                        (mbd,
+                         cpi->frames[frame]->y_buffer + mb_y_offset,
+                         cpi->frames[frame]->u_buffer + mb_uv_offset,
+                         cpi->frames[frame]->v_buffer + mb_uv_offset,
+                         cpi->frames[frame]->y_stride,
+                         mbd->block[0].bmi.mv.as_mv.row,
+                         mbd->block[0].bmi.mv.as_mv.col,
+                         predictor);
+
+                    /* Apply the filter (YUV) */
+                    vp8_temporal_filter_apply
+                        (f->y_buffer + mb_y_offset,
+                         f->y_stride,
+                         predictor,
+                         16,
+                         strength,
+                         filter_weight,
+                         accumulator,
+                         count);
+
+                    vp8_temporal_filter_apply
+                        (f->u_buffer + mb_uv_offset,
+                         f->uv_stride,
+                         predictor + 256,
+                         8,
+                         strength,
+                         filter_weight,
+                         accumulator + 256,
+                         count + 256);
+
+                    vp8_temporal_filter_apply
+                        (f->v_buffer + mb_uv_offset,
+                         f->uv_stride,
+                         predictor + 320,
+                         8,
+                         strength,
+                         filter_weight,
+                         accumulator + 320,
+                         count + 320);
+                }
+            }
+
+            /* Normalize filter output to produce AltRef frame */
+            dst1 = cpi->alt_ref_buffer.y_buffer;
+            stride = cpi->alt_ref_buffer.y_stride;
+            byte = mb_y_offset;
+            for (i = 0,k = 0; i < 16; i++)
+            {
+                for (j = 0; j < 16; j++, k++)
+                {
+                    unsigned int pval = accumulator[k] + (count[k] >> 1);
+                    pval *= cpi->fixed_divide[count[k]];
+                    pval >>= 19;
+
+                    dst1[byte] = (unsigned char)pval;
+
+                    /* move to next pixel */
+                    byte++;
+                }
+
+                byte += stride - 16;
+            }
+
+            dst1 = cpi->alt_ref_buffer.u_buffer;
+            dst2 = cpi->alt_ref_buffer.v_buffer;
+            stride = cpi->alt_ref_buffer.uv_stride;
+            byte = mb_uv_offset;
+            for (i = 0,k = 256; i < 8; i++)
+            {
+                for (j = 0; j < 8; j++, k++)
+                {
+                    int m=k+64;
+
+                    /* U */
+                    unsigned int pval = accumulator[k] + (count[k] >> 1);
+                    pval *= cpi->fixed_divide[count[k]];
+                    pval >>= 19;
+                    dst1[byte] = (unsigned char)pval;
+
+                    /* V */
+                    pval = accumulator[m] + (count[m] >> 1);
+                    pval *= cpi->fixed_divide[count[m]];
+                    pval >>= 19;
+                    dst2[byte] = (unsigned char)pval;
+
+                    /* move to next pixel */
+                    byte++;
+                }
+
+                byte += stride - 8;
+            }
+
+            mb_y_offset += 16;
+            mb_uv_offset += 8;
+        }
+
+        mb_y_offset += 16*(f->y_stride-mb_cols);
+        mb_uv_offset += 8*(f->uv_stride-mb_cols);
+    }
+
+    /* Restore input state */
+    mbd->pre.y_buffer = y_buffer;
+    mbd->pre.u_buffer = u_buffer;
+    mbd->pre.v_buffer = v_buffer;
+}
+
+void vp8_temporal_filter_prepare_c
+(
+    VP8_COMP *cpi,
+    int distance
+)
+{
+    int frame = 0;
+
+    int num_frames_backward = 0;
+    int num_frames_forward = 0;
+    int frames_to_blur_backward = 0;
+    int frames_to_blur_forward = 0;
+    int frames_to_blur = 0;
+    int start_frame = 0;
+
+    int strength = cpi->oxcf.arnr_strength;
+
+    int blur_type = cpi->oxcf.arnr_type;
+
+    int max_frames = cpi->active_arnr_frames;
+
+    num_frames_backward = distance;
+    num_frames_forward = vp8_lookahead_depth(cpi->lookahead)
+                         - (num_frames_backward + 1);
+
+    switch (blur_type)
+    {
+    case 1:
+        /* Backward Blur */
+
+        frames_to_blur_backward = num_frames_backward;
+
+        if (frames_to_blur_backward >= max_frames)
+            frames_to_blur_backward = max_frames - 1;
+
+        frames_to_blur = frames_to_blur_backward + 1;
+        break;
+
+    case 2:
+        /* Forward Blur */
+
+        frames_to_blur_forward = num_frames_forward;
+
+        if (frames_to_blur_forward >= max_frames)
+            frames_to_blur_forward = max_frames - 1;
+
+        frames_to_blur = frames_to_blur_forward + 1;
+        break;
+
+    case 3:
+    default:
+        /* Center Blur */
+        frames_to_blur_forward = num_frames_forward;
+        frames_to_blur_backward = num_frames_backward;
+
+        if (frames_to_blur_forward > frames_to_blur_backward)
+            frames_to_blur_forward = frames_to_blur_backward;
+
+        if (frames_to_blur_backward > frames_to_blur_forward)
+            frames_to_blur_backward = frames_to_blur_forward;
+
+        /* When max_frames is even we have 1 more frame backward than forward */
+        if (frames_to_blur_forward > (max_frames - 1) / 2)
+            frames_to_blur_forward = ((max_frames - 1) / 2);
+
+        if (frames_to_blur_backward > (max_frames / 2))
+            frames_to_blur_backward = (max_frames / 2);
+
+        frames_to_blur = frames_to_blur_backward + frames_to_blur_forward + 1;
+        break;
+    }
+
+    start_frame = distance + frames_to_blur_forward;
+
+    /* Setup frame pointers, NULL indicates frame not included in filter */
+    memset(cpi->frames, 0, max_frames*sizeof(YV12_BUFFER_CONFIG *));
+    for (frame = 0; frame < frames_to_blur; frame++)
+    {
+        int which_buffer =  start_frame - frame;
+        struct lookahead_entry* buf = vp8_lookahead_peek(cpi->lookahead,
+                                                         which_buffer,
+                                                         PEEK_FORWARD);
+        cpi->frames[frames_to_blur-1-frame] = &buf->img;
+    }
+
+    vp8_temporal_filter_iterate_c (
+        cpi,
+        frames_to_blur,
+        frames_to_blur_backward,
+        strength );
+}
+#endif
diff --git a/media/libvpx/vp8/encoder/tokenize.c b/media/libvpx/vp8/encoder/tokenize.c
new file mode 100644
index 000000000..afd46fb21
--- /dev/null
+++ b/media/libvpx/vp8/encoder/tokenize.c
@@ -0,0 +1,608 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "onyx_int.h"
+#include "tokenize.h"
+#include "vpx_mem/vpx_mem.h"
+
+/* Global event counters used for accumulating statistics across several
+   compressions, then generating context.c = initial stats. */
+
+#ifdef VP8_ENTROPY_STATS
+_int64 context_counters[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];
+#endif
+void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t) ;
+void vp8_fix_contexts(MACROBLOCKD *x);
+
+#include "dct_value_tokens.h"
+#include "dct_value_cost.h"
+
+const TOKENVALUE *const vp8_dct_value_tokens_ptr = dct_value_tokens +
+        DCT_MAX_VALUE;
+const short *const vp8_dct_value_cost_ptr = dct_value_cost + DCT_MAX_VALUE;
+
+#if 0
+int skip_true_count = 0;
+int skip_false_count = 0;
+#endif
+
+/* function used to generate dct_value_tokens and dct_value_cost tables */
+/*
+static void fill_value_tokens()
+{
+
+    TOKENVALUE *t = dct_value_tokens + DCT_MAX_VALUE;
+    const vp8_extra_bit_struct *e = vp8_extra_bits;
+
+    int i = -DCT_MAX_VALUE;
+    int sign = 1;
+
+    do
+    {
+        if (!i)
+            sign = 0;
+
+        {
+            const int a = sign ? -i : i;
+            int eb = sign;
+
+            if (a > 4)
+            {
+                int j = 4;
+
+                while (++j < 11  &&  e[j].base_val <= a) {}
+
+                t[i].Token = --j;
+                eb |= (a - e[j].base_val) << 1;
+            }
+            else
+                t[i].Token = a;
+
+            t[i].Extra = eb;
+        }
+
+        // initialize the cost for extra bits for all possible coefficient value.
+        {
+            int cost = 0;
+            const vp8_extra_bit_struct *p = vp8_extra_bits + t[i].Token;
+
+            if (p->base_val)
+            {
+                const int extra = t[i].Extra;
+                const int Length = p->Len;
+
+                if (Length)
+                    cost += vp8_treed_cost(p->tree, p->prob, extra >> 1, Length);
+
+                cost += vp8_cost_bit(vp8_prob_half, extra & 1); // sign
+                dct_value_cost[i + DCT_MAX_VALUE] = cost;
+            }
+
+        }
+
+    }
+    while (++i < DCT_MAX_VALUE);
+
+    vp8_dct_value_tokens_ptr = dct_value_tokens + DCT_MAX_VALUE;
+    vp8_dct_value_cost_ptr   = dct_value_cost + DCT_MAX_VALUE;
+}
+*/
+
+static void tokenize2nd_order_b
+(
+    MACROBLOCK *x,
+    TOKENEXTRA **tp,
+    VP8_COMP *cpi
+)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+    int pt;             /* near block/prev token context index */
+    int c;              /* start at DC */
+    TOKENEXTRA *t = *tp;/* store tokens starting here */
+    const BLOCKD *b;
+    const short *qcoeff_ptr;
+    ENTROPY_CONTEXT * a;
+    ENTROPY_CONTEXT * l;
+    int band, rc, v, token;
+    int eob;
+
+    b = xd->block + 24;
+    qcoeff_ptr = b->qcoeff;
+    a = (ENTROPY_CONTEXT *)xd->above_context + 8;
+    l = (ENTROPY_CONTEXT *)xd->left_context + 8;
+    eob = xd->eobs[24];
+    VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+
+    if(!eob)
+    {
+        /* c = band for this case */
+        t->Token = DCT_EOB_TOKEN;
+        t->context_tree = cpi->common.fc.coef_probs [1] [0] [pt];
+        t->skip_eob_node = 0;
+
+        ++x->coef_counts       [1] [0] [pt] [DCT_EOB_TOKEN];
+        t++;
+        *tp = t;
+        *a = *l = 0;
+        return;
+    }
+
+    v = qcoeff_ptr[0];
+    t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
+    token    = vp8_dct_value_tokens_ptr[v].Token;
+    t->Token = token;
+
+    t->context_tree = cpi->common.fc.coef_probs [1] [0] [pt];
+    t->skip_eob_node = 0;
+    ++x->coef_counts       [1] [0] [pt] [token];
+    pt = vp8_prev_token_class[token];
+    t++;
+    c = 1;
+
+    for (; c < eob; c++)
+    {
+        rc = vp8_default_zig_zag1d[c];
+        band = vp8_coef_bands[c];
+        v = qcoeff_ptr[rc];
+
+        t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
+        token    = vp8_dct_value_tokens_ptr[v].Token;
+
+        t->Token = token;
+        t->context_tree = cpi->common.fc.coef_probs [1] [band] [pt];
+
+        t->skip_eob_node = ((pt == 0));
+
+        ++x->coef_counts       [1] [band] [pt] [token];
+
+        pt = vp8_prev_token_class[token];
+        t++;
+    }
+    if (c < 16)
+    {
+        band = vp8_coef_bands[c];
+        t->Token = DCT_EOB_TOKEN;
+        t->context_tree = cpi->common.fc.coef_probs [1] [band] [pt];
+
+        t->skip_eob_node = 0;
+
+        ++x->coef_counts       [1] [band] [pt] [DCT_EOB_TOKEN];
+
+        t++;
+    }
+
+    *tp = t;
+    *a = *l = 1;
+
+}
+
+static void tokenize1st_order_b
+(
+    MACROBLOCK *x,
+    TOKENEXTRA **tp,
+    int type,           /* which plane: 0=Y no DC, 1=Y2, 2=UV, 3=Y with DC */
+    VP8_COMP *cpi
+)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+    unsigned int block;
+    const BLOCKD *b;
+    int pt;             /* near block/prev token context index */
+    int c;
+    int token;
+    TOKENEXTRA *t = *tp;/* store tokens starting here */
+    const short *qcoeff_ptr;
+    ENTROPY_CONTEXT * a;
+    ENTROPY_CONTEXT * l;
+    int band, rc, v;
+    int tmp1, tmp2;
+
+    b = xd->block;
+    /* Luma */
+    for (block = 0; block < 16; block++, b++)
+    {
+        const int eob = *b->eob;
+        tmp1 = vp8_block2above[block];
+        tmp2 = vp8_block2left[block];
+        qcoeff_ptr = b->qcoeff;
+        a = (ENTROPY_CONTEXT *)xd->above_context + tmp1;
+        l = (ENTROPY_CONTEXT *)xd->left_context + tmp2;
+
+        VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+
+        c = type ? 0 : 1;
+
+        if(c >= eob)
+        {
+            /* c = band for this case */
+            t->Token = DCT_EOB_TOKEN;
+            t->context_tree = cpi->common.fc.coef_probs [type] [c] [pt];
+            t->skip_eob_node = 0;
+
+            ++x->coef_counts       [type] [c] [pt] [DCT_EOB_TOKEN];
+            t++;
+            *tp = t;
+            *a = *l = 0;
+            continue;
+        }
+
+        v = qcoeff_ptr[c];
+
+        t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
+        token    = vp8_dct_value_tokens_ptr[v].Token;
+        t->Token = token;
+
+        t->context_tree = cpi->common.fc.coef_probs [type] [c] [pt];
+        t->skip_eob_node = 0;
+        ++x->coef_counts       [type] [c] [pt] [token];
+        pt = vp8_prev_token_class[token];
+        t++;
+        c++;
+
+        assert(eob <= 16);
+        for (; c < eob; c++)
+        {
+            rc = vp8_default_zig_zag1d[c];
+            band = vp8_coef_bands[c];
+            v = qcoeff_ptr[rc];
+
+            t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
+            token    = vp8_dct_value_tokens_ptr[v].Token;
+
+            t->Token = token;
+            t->context_tree = cpi->common.fc.coef_probs [type] [band] [pt];
+
+            t->skip_eob_node = (pt == 0);
+            ++x->coef_counts       [type] [band] [pt] [token];
+
+            pt = vp8_prev_token_class[token];
+            t++;
+        }
+        if (c < 16)
+        {
+            band = vp8_coef_bands[c];
+            t->Token = DCT_EOB_TOKEN;
+            t->context_tree = cpi->common.fc.coef_probs [type] [band] [pt];
+
+            t->skip_eob_node = 0;
+            ++x->coef_counts       [type] [band] [pt] [DCT_EOB_TOKEN];
+
+            t++;
+        }
+        *tp = t;
+        *a = *l = 1;
+    }
+
+    /* Chroma */
+    for (block = 16; block < 24; block++, b++)
+    {
+        const int eob = *b->eob;
+        tmp1 = vp8_block2above[block];
+        tmp2 = vp8_block2left[block];
+        qcoeff_ptr = b->qcoeff;
+        a = (ENTROPY_CONTEXT *)xd->above_context + tmp1;
+        l = (ENTROPY_CONTEXT *)xd->left_context + tmp2;
+
+        VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+
+        if(!eob)
+        {
+            /* c = band for this case */
+            t->Token = DCT_EOB_TOKEN;
+            t->context_tree = cpi->common.fc.coef_probs [2] [0] [pt];
+            t->skip_eob_node = 0;
+
+            ++x->coef_counts       [2] [0] [pt] [DCT_EOB_TOKEN];
+            t++;
+            *tp = t;
+            *a = *l = 0;
+            continue;
+        }
+
+        v = qcoeff_ptr[0];
+
+        t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
+        token    = vp8_dct_value_tokens_ptr[v].Token;
+        t->Token = token;
+
+        t->context_tree = cpi->common.fc.coef_probs [2] [0] [pt];
+        t->skip_eob_node = 0;
+        ++x->coef_counts       [2] [0] [pt] [token];
+        pt = vp8_prev_token_class[token];
+        t++;
+        c = 1;
+
+        assert(eob <= 16);
+        for (; c < eob; c++)
+        {
+            rc = vp8_default_zig_zag1d[c];
+            band = vp8_coef_bands[c];
+            v = qcoeff_ptr[rc];
+
+            t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
+            token    = vp8_dct_value_tokens_ptr[v].Token;
+
+            t->Token = token;
+            t->context_tree = cpi->common.fc.coef_probs [2] [band] [pt];
+
+            t->skip_eob_node = (pt == 0);
+
+            ++x->coef_counts       [2] [band] [pt] [token];
+
+            pt = vp8_prev_token_class[token];
+            t++;
+        }
+        if (c < 16)
+        {
+            band = vp8_coef_bands[c];
+            t->Token = DCT_EOB_TOKEN;
+            t->context_tree = cpi->common.fc.coef_probs [2] [band] [pt];
+
+            t->skip_eob_node = 0;
+
+            ++x->coef_counts       [2] [band] [pt] [DCT_EOB_TOKEN];
+
+            t++;
+        }
+        *tp = t;
+        *a = *l = 1;
+    }
+}
+
+
+static int mb_is_skippable(MACROBLOCKD *x, int has_y2_block)
+{
+    int skip = 1;
+    int i = 0;
+
+    if (has_y2_block)
+    {
+        for (i = 0; i < 16; i++)
+            skip &= (x->eobs[i] < 2);
+    }
+
+    for (; i < 24 + has_y2_block; i++)
+        skip &= (!x->eobs[i]);
+
+    return skip;
+}
+
+
+void vp8_tokenize_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+    int plane_type;
+    int has_y2_block;
+
+    has_y2_block = (xd->mode_info_context->mbmi.mode != B_PRED
+                    && xd->mode_info_context->mbmi.mode != SPLITMV);
+
+    xd->mode_info_context->mbmi.mb_skip_coeff =
+        mb_is_skippable(xd, has_y2_block);
+    if (xd->mode_info_context->mbmi.mb_skip_coeff)
+    {
+        if (!cpi->common.mb_no_coeff_skip)
+        {
+            vp8_stuff_mb(cpi, x, t);
+        }
+        else
+        {
+            vp8_fix_contexts(xd);
+            x->skip_true_count++;
+        }
+
+        return;
+    }
+
+    plane_type = 3;
+    if(has_y2_block)
+    {
+        tokenize2nd_order_b(x, t, cpi);
+        plane_type = 0;
+    }
+
+    tokenize1st_order_b(x, t, plane_type, cpi);
+}
+
+
+#ifdef VP8_ENTROPY_STATS
+
+void init_context_counters(void)
+{
+    memset(context_counters, 0, sizeof(context_counters));
+}
+
+void print_context_counters()
+{
+
+    int type, band, pt, t;
+
+    FILE *const f = fopen("context.c", "w");
+
+    fprintf(f, "#include \"entropy.h\"\n");
+
+    fprintf(f, "\n/* *** GENERATED FILE: DO NOT EDIT *** */\n\n");
+
+    fprintf(f, "int Contexts[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];\n\n");
+
+    fprintf(f, "const int default_contexts[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS] = {");
+
+# define Comma( X) (X? ",":"")
+
+    type = 0;
+
+    do
+    {
+        fprintf(f, "%s\n  { /* block Type %d */", Comma(type), type);
+
+        band = 0;
+
+        do
+        {
+            fprintf(f, "%s\n    { /* Coeff Band %d */", Comma(band), band);
+
+            pt = 0;
+
+            do
+            {
+                fprintf(f, "%s\n      {", Comma(pt));
+
+                t = 0;
+
+                do
+                {
+                    const _int64 x = context_counters [type] [band] [pt] [t];
+                    const int y = (int) x;
+
+                    assert(x == (_int64) y);  /* no overflow handling yet */
+                    fprintf(f, "%s %d", Comma(t), y);
+
+                }
+                while (++t < MAX_ENTROPY_TOKENS);
+
+                fprintf(f, "}");
+            }
+            while (++pt < PREV_COEF_CONTEXTS);
+
+            fprintf(f, "\n    }");
+
+        }
+        while (++band < COEF_BANDS);
+
+        fprintf(f, "\n  }");
+    }
+    while (++type < BLOCK_TYPES);
+
+    fprintf(f, "\n};\n");
+    fclose(f);
+}
+#endif
+
+
+static void stuff2nd_order_b
+(
+    TOKENEXTRA **tp,
+    ENTROPY_CONTEXT *a,
+    ENTROPY_CONTEXT *l,
+    VP8_COMP *cpi,
+    MACROBLOCK *x
+)
+{
+    int pt; /* near block/prev token context index */
+    TOKENEXTRA *t = *tp;        /* store tokens starting here */
+    VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+
+    t->Token = DCT_EOB_TOKEN;
+    t->context_tree = cpi->common.fc.coef_probs [1] [0] [pt];
+    t->skip_eob_node = 0;
+    ++x->coef_counts       [1] [0] [pt] [DCT_EOB_TOKEN];
+    ++t;
+
+    *tp = t;
+    pt = 0;
+    *a = *l = pt;
+}
+
+static void stuff1st_order_b
+(
+    TOKENEXTRA **tp,
+    ENTROPY_CONTEXT *a,
+    ENTROPY_CONTEXT *l,
+    int type,
+    VP8_COMP *cpi,
+    MACROBLOCK *x
+)
+{
+    int pt; /* near block/prev token context index */
+    int band;
+    TOKENEXTRA *t = *tp;        /* store tokens starting here */
+    VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+    band = type ? 0 : 1;
+    t->Token = DCT_EOB_TOKEN;
+    t->context_tree = cpi->common.fc.coef_probs [type] [band] [pt];
+    t->skip_eob_node = 0;
+    ++x->coef_counts       [type] [band] [pt] [DCT_EOB_TOKEN];
+    ++t;
+    *tp = t;
+    pt = 0; /* 0 <-> all coeff data is zero */
+    *a = *l = pt;
+}
+
+static
+void stuff1st_order_buv
+(
+    TOKENEXTRA **tp,
+    ENTROPY_CONTEXT *a,
+    ENTROPY_CONTEXT *l,
+    VP8_COMP *cpi,
+    MACROBLOCK *x
+)
+{
+    int pt; /* near block/prev token context index */
+    TOKENEXTRA *t = *tp;        /* store tokens starting here */
+    VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
+
+    t->Token = DCT_EOB_TOKEN;
+    t->context_tree = cpi->common.fc.coef_probs [2] [0] [pt];
+    t->skip_eob_node = 0;
+    ++x->coef_counts[2] [0] [pt] [DCT_EOB_TOKEN];
+    ++t;
+    *tp = t;
+    pt = 0; /* 0 <-> all coeff data is zero */
+    *a = *l = pt;
+}
+
+void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t)
+{
+    MACROBLOCKD *xd = &x->e_mbd;
+    ENTROPY_CONTEXT * A = (ENTROPY_CONTEXT *)xd->above_context;
+    ENTROPY_CONTEXT * L = (ENTROPY_CONTEXT *)xd->left_context;
+    int plane_type;
+    int b;
+    plane_type = 3;
+    if((xd->mode_info_context->mbmi.mode != B_PRED
+                        && xd->mode_info_context->mbmi.mode != SPLITMV))
+    {
+        stuff2nd_order_b(t,
+                     A + vp8_block2above[24], L + vp8_block2left[24], cpi, x);
+        plane_type = 0;
+    }
+
+    for (b = 0; b < 16; b++)
+        stuff1st_order_b(t,
+                         A + vp8_block2above[b],
+                         L + vp8_block2left[b], plane_type, cpi, x);
+
+    for (b = 16; b < 24; b++)
+        stuff1st_order_buv(t,
+                           A + vp8_block2above[b],
+                           L + vp8_block2left[b], cpi, x);
+
+}
+void vp8_fix_contexts(MACROBLOCKD *x)
+{
+    /* Clear entropy contexts for Y2 blocks */
+    if (x->mode_info_context->mbmi.mode != B_PRED && x->mode_info_context->mbmi.mode != SPLITMV)
+    {
+        memset(x->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES));
+        memset(x->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES));
+    }
+    else
+    {
+        memset(x->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)-1);
+        memset(x->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)-1);
+    }
+
+}
diff --git a/media/libvpx/vp8/encoder/tokenize.h b/media/libvpx/vp8/encoder/tokenize.h
new file mode 100644
index 000000000..b73a9ee1c
--- /dev/null
+++ b/media/libvpx/vp8/encoder/tokenize.h
@@ -0,0 +1,58 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_TOKENIZE_H_
+#define VP8_ENCODER_TOKENIZE_H_
+
+#include "vp8/common/entropy.h"
+#include "block.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_tokenize_initialize();
+
+typedef struct
+{
+    short Token;
+    short Extra;
+} TOKENVALUE;
+
+typedef struct
+{
+    const vp8_prob *context_tree;
+    short           Extra;
+    unsigned char   Token;
+    unsigned char   skip_eob_node;
+} TOKENEXTRA;
+
+int rd_cost_mby(MACROBLOCKD *);
+
+#ifdef VP8_ENTROPY_STATS
+void init_context_counters();
+void print_context_counters();
+
+extern _int64 context_counters[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS];
+#endif
+
+extern const short *const vp8_dct_value_cost_ptr;
+/* TODO: The Token field should be broken out into a separate char array to
+ *  improve cache locality, since it's needed for costing when the rest of the
+ *  fields are not.
+ */
+extern const TOKENVALUE *const vp8_dct_value_tokens_ptr;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_TOKENIZE_H_
diff --git a/media/libvpx/vp8/encoder/treewriter.c b/media/libvpx/vp8/encoder/treewriter.c
new file mode 100644
index 000000000..ef25f670b
--- /dev/null
+++ b/media/libvpx/vp8/encoder/treewriter.c
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "treewriter.h"
+
+static void cost(
+    int *const C,
+    vp8_tree T,
+    const vp8_prob *const P,
+    int i,
+    int c
+)
+{
+    const vp8_prob p = P [i>>1];
+
+    do
+    {
+        const vp8_tree_index j = T[i];
+        const int d = c + vp8_cost_bit(p, i & 1);
+
+        if (j <= 0)
+            C[-j] = d;
+        else
+            cost(C, T, P, j, d);
+    }
+    while (++i & 1);
+}
+void vp8_cost_tokens(int *c, const vp8_prob *p, vp8_tree t)
+{
+    cost(c, t, p, 0, 0);
+}
+void vp8_cost_tokens2(int *c, const vp8_prob *p, vp8_tree t,int start)
+{
+    cost(c, t, p, start, 0);
+}
diff --git a/media/libvpx/vp8/encoder/treewriter.h b/media/libvpx/vp8/encoder/treewriter.h
new file mode 100644
index 000000000..cfb2730ab
--- /dev/null
+++ b/media/libvpx/vp8/encoder/treewriter.h
@@ -0,0 +1,134 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_ENCODER_TREEWRITER_H_
+#define VP8_ENCODER_TREEWRITER_H_
+
+/* Trees map alphabets into huffman-like codes suitable for an arithmetic
+   bit coder.  Timothy S Murphy  11 October 2004 */
+
+#include "vp8/common/treecoder.h"
+
+#include "boolhuff.h"       /* for now */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef BOOL_CODER vp8_writer;
+
+#define vp8_write vp8_encode_bool
+#define vp8_write_literal vp8_encode_value
+#define vp8_write_bit( W, V) vp8_write( W, V, vp8_prob_half)
+
+#define vp8bc_write vp8bc_write_bool
+#define vp8bc_write_literal vp8bc_write_bits
+#define vp8bc_write_bit( W, V) vp8bc_write_bits( W, V, 1)
+
+
+/* Approximate length of an encoded bool in 256ths of a bit at given prob */
+
+#define vp8_cost_zero( x) ( vp8_prob_cost[x])
+#define vp8_cost_one( x)  vp8_cost_zero( vp8_complement(x))
+
+#define vp8_cost_bit( x, b) vp8_cost_zero( (b)?  vp8_complement(x) : (x) )
+
+/* VP8BC version is scaled by 2^20 rather than 2^8; see bool_coder.h */
+
+
+/* Both of these return bits, not scaled bits. */
+
+static unsigned int vp8_cost_branch(const unsigned int ct[2], vp8_prob p)
+{
+    /* Imitate existing calculation */
+
+    return ((ct[0] * vp8_cost_zero(p))
+            + (ct[1] * vp8_cost_one(p))) >> 8;
+}
+
+/* Small functions to write explicit values and tokens, as well as
+   estimate their lengths. */
+
+static void vp8_treed_write
+(
+    vp8_writer *const w,
+    vp8_tree t,
+    const vp8_prob *const p,
+    int v,
+    int n               /* number of bits in v, assumed nonzero */
+)
+{
+    vp8_tree_index i = 0;
+
+    do
+    {
+        const int b = (v >> --n) & 1;
+        vp8_write(w, b, p[i>>1]);
+        i = t[i+b];
+    }
+    while (n);
+}
+static void vp8_write_token
+(
+    vp8_writer *const w,
+    vp8_tree t,
+    const vp8_prob *const p,
+    vp8_token *const x
+)
+{
+    vp8_treed_write(w, t, p, x->value, x->Len);
+}
+
+static int vp8_treed_cost(
+    vp8_tree t,
+    const vp8_prob *const p,
+    int v,
+    int n               /* number of bits in v, assumed nonzero */
+)
+{
+    int c = 0;
+    vp8_tree_index i = 0;
+
+    do
+    {
+        const int b = (v >> --n) & 1;
+        c += vp8_cost_bit(p[i>>1], b);
+        i = t[i+b];
+    }
+    while (n);
+
+    return c;
+}
+static int vp8_cost_token
+(
+    vp8_tree t,
+    const vp8_prob *const p,
+    vp8_token *const x
+)
+{
+    return vp8_treed_cost(t, p, x->value, x->Len);
+}
+
+/* Fill array of costs for all possible token values. */
+
+void vp8_cost_tokens(
+    int *Costs, const vp8_prob *, vp8_tree
+);
+
+void vp8_cost_tokens2(
+    int *Costs, const vp8_prob *, vp8_tree, int
+);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_TREEWRITER_H_
diff --git a/media/libvpx/vp8/encoder/x86/dct_mmx.asm b/media/libvpx/vp8/encoder/x86/dct_mmx.asm
new file mode 100644
index 000000000..6f188cb94
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/dct_mmx.asm
@@ -0,0 +1,241 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_short_fdct4x4_mmx(short *input, short *output, int pitch)
+global sym(vp8_short_fdct4x4_mmx) PRIVATE
+sym(vp8_short_fdct4x4_mmx):
+    push        rbp
+    mov         rbp,        rsp
+    SHADOW_ARGS_TO_STACK 3
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+        mov         rsi,        arg(0)      ; input
+        mov         rdi,        arg(1)      ; output
+
+        movsxd      rax,        dword ptr arg(2) ;pitch
+
+        lea         rcx,        [rsi + rax*2]
+        ; read the input data
+        movq        mm0,        [rsi]
+        movq        mm1,        [rsi + rax]
+
+        movq        mm2,        [rcx]
+        movq        mm4,        [rcx + rax]
+
+        ; transpose for the first stage
+        movq        mm3,        mm0         ; 00 01 02 03
+        movq        mm5,        mm2         ; 20 21 22 23
+
+        punpcklwd   mm0,        mm1         ; 00 10 01 11
+        punpckhwd   mm3,        mm1         ; 02 12 03 13
+
+        punpcklwd   mm2,        mm4         ; 20 30 21 31
+        punpckhwd   mm5,        mm4         ; 22 32 23 33
+
+        movq        mm1,        mm0         ; 00 10 01 11
+        punpckldq   mm0,        mm2         ; 00 10 20 30
+
+        punpckhdq   mm1,        mm2         ; 01 11 21 31
+
+        movq        mm2,        mm3         ; 02 12 03 13
+        punpckldq   mm2,        mm5         ; 02 12 22 32
+
+        punpckhdq   mm3,        mm5         ; 03 13 23 33
+
+        ; mm0 0
+        ; mm1 1
+        ; mm2 2
+        ; mm3 3
+
+        ; first stage
+        movq        mm5,        mm0
+        movq        mm4,        mm1
+
+        paddw       mm0,        mm3         ; a1 = 0 + 3
+        paddw       mm1,        mm2         ; b1 = 1 + 2
+
+        psubw       mm4,        mm2         ; c1 = 1 - 2
+        psubw       mm5,        mm3         ; d1 = 0 - 3
+
+        psllw       mm5,        3
+        psllw       mm4,        3
+
+        psllw       mm0,        3
+        psllw       mm1,        3
+
+        ; output 0 and 2
+        movq        mm2,        mm0         ; a1
+
+        paddw       mm0,        mm1         ; op[0] = a1 + b1
+        psubw       mm2,        mm1         ; op[2] = a1 - b1
+
+        ; output 1 and 3
+        ; interleave c1, d1
+        movq        mm1,        mm5         ; d1
+        punpcklwd   mm1,        mm4         ; c1 d1
+        punpckhwd   mm5,        mm4         ; c1 d1
+
+        movq        mm3,        mm1
+        movq        mm4,        mm5
+
+        pmaddwd     mm1,        MMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+        pmaddwd     mm4,        MMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+
+        pmaddwd     mm3,        MMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+        pmaddwd     mm5,        MMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+
+        paddd       mm1,        MMWORD PTR[GLOBAL(_14500)]
+        paddd       mm4,        MMWORD PTR[GLOBAL(_14500)]
+        paddd       mm3,        MMWORD PTR[GLOBAL(_7500)]
+        paddd       mm5,        MMWORD PTR[GLOBAL(_7500)]
+
+        psrad       mm1,        12          ; (c1 * 2217 + d1 * 5352 +  14500)>>12
+        psrad       mm4,        12          ; (c1 * 2217 + d1 * 5352 +  14500)>>12
+        psrad       mm3,        12          ; (d1 * 2217 - c1 * 5352 +   7500)>>12
+        psrad       mm5,        12          ; (d1 * 2217 - c1 * 5352 +   7500)>>12
+
+        packssdw    mm1,        mm4         ; op[1]
+        packssdw    mm3,        mm5         ; op[3]
+
+        ; done with vertical
+        ; transpose for the second stage
+        movq        mm4,        mm0         ; 00 10 20 30
+        movq        mm5,        mm2         ; 02 12 22 32
+
+        punpcklwd   mm0,        mm1         ; 00 01 10 11
+        punpckhwd   mm4,        mm1         ; 20 21 30 31
+
+        punpcklwd   mm2,        mm3         ; 02 03 12 13
+        punpckhwd   mm5,        mm3         ; 22 23 32 33
+
+        movq        mm1,        mm0         ; 00 01 10 11
+        punpckldq   mm0,        mm2         ; 00 01 02 03
+
+        punpckhdq   mm1,        mm2         ; 01 22 12 13
+
+        movq        mm2,        mm4         ; 20 31 30 31
+        punpckldq   mm2,        mm5         ; 20 21 22 23
+
+        punpckhdq   mm4,        mm5         ; 30 31 32 33
+
+        ; mm0 0
+        ; mm1 1
+        ; mm2 2
+        ; mm3 4
+
+        movq        mm5,        mm0
+        movq        mm3,        mm1
+
+        paddw       mm0,        mm4         ; a1 = 0 + 3
+        paddw       mm1,        mm2         ; b1 = 1 + 2
+
+        psubw       mm3,        mm2         ; c1 = 1 - 2
+        psubw       mm5,        mm4         ; d1 = 0 - 3
+
+        pxor        mm6,        mm6         ; zero out for compare
+
+        pcmpeqw     mm6,        mm5         ; d1 != 0
+
+        pandn       mm6,        MMWORD PTR[GLOBAL(_cmp_mask)]   ; clear upper,
+                                                                ; and keep bit 0 of lower
+
+        ; output 0 and 2
+        movq        mm2,        mm0         ; a1
+
+        paddw       mm0,        mm1         ; a1 + b1
+        psubw       mm2,        mm1         ; a1 - b1
+
+        paddw       mm0,        MMWORD PTR[GLOBAL(_7w)]
+        paddw       mm2,        MMWORD PTR[GLOBAL(_7w)]
+
+        psraw       mm0,        4           ; op[0] = (a1 + b1 + 7)>>4
+        psraw       mm2,        4           ; op[8] = (a1 - b1 + 7)>>4
+
+        movq        MMWORD PTR[rdi + 0 ],  mm0
+        movq        MMWORD PTR[rdi + 16],  mm2
+
+        ; output 1 and 3
+        ; interleave c1, d1
+        movq        mm1,        mm5         ; d1
+        punpcklwd   mm1,        mm3         ; c1 d1
+        punpckhwd   mm5,        mm3         ; c1 d1
+
+        movq        mm3,        mm1
+        movq        mm4,        mm5
+
+        pmaddwd     mm1,        MMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+        pmaddwd     mm4,        MMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+
+        pmaddwd     mm3,        MMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+        pmaddwd     mm5,        MMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+
+        paddd       mm1,        MMWORD PTR[GLOBAL(_12000)]
+        paddd       mm4,        MMWORD PTR[GLOBAL(_12000)]
+        paddd       mm3,        MMWORD PTR[GLOBAL(_51000)]
+        paddd       mm5,        MMWORD PTR[GLOBAL(_51000)]
+
+        psrad       mm1,        16          ; (c1 * 2217 + d1 * 5352 +  14500)>>16
+        psrad       mm4,        16          ; (c1 * 2217 + d1 * 5352 +  14500)>>16
+        psrad       mm3,        16          ; (d1 * 2217 - c1 * 5352 +   7500)>>16
+        psrad       mm5,        16          ; (d1 * 2217 - c1 * 5352 +   7500)>>16
+
+        packssdw    mm1,        mm4         ; op[4]
+        packssdw    mm3,        mm5         ; op[12]
+
+        paddw       mm1,        mm6         ; op[4] += (d1!=0)
+
+        movq        MMWORD PTR[rdi + 8 ],  mm1
+        movq        MMWORD PTR[rdi + 24],  mm3
+
+     ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 8
+_5352_2217:
+    dw 5352
+    dw 2217
+    dw 5352
+    dw 2217
+align 8
+_2217_neg5352:
+    dw 2217
+    dw -5352
+    dw 2217
+    dw -5352
+align 8
+_cmp_mask:
+    times 4 dw 1
+align 8
+_7w:
+    times 4 dw 7
+align 8
+_14500:
+    times 2 dd 14500
+align 8
+_7500:
+    times 2 dd 7500
+align 8
+_12000:
+    times 2 dd 12000
+align 8
+_51000:
+    times 2 dd 51000
diff --git a/media/libvpx/vp8/encoder/x86/dct_sse2.asm b/media/libvpx/vp8/encoder/x86/dct_sse2.asm
new file mode 100644
index 000000000..d06bca592
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/dct_sse2.asm
@@ -0,0 +1,432 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+%macro STACK_FRAME_CREATE 0
+%if ABI_IS_32BIT
+  %define       input       rsi
+  %define       output      rdi
+  %define       pitch       rax
+    push        rbp
+    mov         rbp, rsp
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    mov         rsi, arg(0)
+    mov         rdi, arg(1)
+
+    movsxd      rax, dword ptr arg(2)
+    lea         rcx, [rsi + rax*2]
+%else
+  %if LIBVPX_YASM_WIN64
+    %define     input       rcx
+    %define     output      rdx
+    %define     pitch       r8
+    SAVE_XMM 7, u
+  %else
+    %define     input       rdi
+    %define     output      rsi
+    %define     pitch       rdx
+  %endif
+%endif
+%endmacro
+
+%macro STACK_FRAME_DESTROY 0
+  %define     input
+  %define     output
+  %define     pitch
+
+%if ABI_IS_32BIT
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    pop         rbp
+%else
+  %if LIBVPX_YASM_WIN64
+    RESTORE_XMM
+  %endif
+%endif
+    ret
+%endmacro
+
+;void vp8_short_fdct4x4_sse2(short *input, short *output, int pitch)
+global sym(vp8_short_fdct4x4_sse2) PRIVATE
+sym(vp8_short_fdct4x4_sse2):
+
+    STACK_FRAME_CREATE
+
+    movq        xmm0, MMWORD PTR[input        ] ;03 02 01 00
+    movq        xmm2, MMWORD PTR[input+  pitch] ;13 12 11 10
+    lea         input,          [input+2*pitch]
+    movq        xmm1, MMWORD PTR[input        ] ;23 22 21 20
+    movq        xmm3, MMWORD PTR[input+  pitch] ;33 32 31 30
+
+    punpcklqdq  xmm0, xmm2                      ;13 12 11 10 03 02 01 00
+    punpcklqdq  xmm1, xmm3                      ;33 32 31 30 23 22 21 20
+
+    movdqa      xmm2, xmm0
+    punpckldq   xmm0, xmm1                      ;23 22 03 02 21 20 01 00
+    punpckhdq   xmm2, xmm1                      ;33 32 13 12 31 30 11 10
+    movdqa      xmm1, xmm0
+    punpckldq   xmm0, xmm2                      ;31 21 30 20 11 10 01 00
+    pshufhw     xmm1, xmm1, 0b1h                ;22 23 02 03 xx xx xx xx
+    pshufhw     xmm2, xmm2, 0b1h                ;32 33 12 13 xx xx xx xx
+
+    punpckhdq   xmm1, xmm2                      ;32 33 22 23 12 13 02 03
+    movdqa      xmm3, xmm0
+    paddw       xmm0, xmm1                      ;b1 a1 b1 a1 b1 a1 b1 a1
+    psubw       xmm3, xmm1                      ;c1 d1 c1 d1 c1 d1 c1 d1
+    psllw       xmm0, 3                         ;b1 <<= 3 a1 <<= 3
+    psllw       xmm3, 3                         ;c1 <<= 3 d1 <<= 3
+
+    movdqa      xmm1, xmm0
+    pmaddwd     xmm0, XMMWORD PTR[GLOBAL(_mult_add)]    ;a1 + b1
+    pmaddwd     xmm1, XMMWORD PTR[GLOBAL(_mult_sub)]    ;a1 - b1
+    movdqa      xmm4, xmm3
+    pmaddwd     xmm3, XMMWORD PTR[GLOBAL(_5352_2217)]   ;c1*2217 + d1*5352
+    pmaddwd     xmm4, XMMWORD PTR[GLOBAL(_2217_neg5352)];d1*2217 - c1*5352
+
+    paddd       xmm3, XMMWORD PTR[GLOBAL(_14500)]
+    paddd       xmm4, XMMWORD PTR[GLOBAL(_7500)]
+    psrad       xmm3, 12            ;(c1 * 2217 + d1 * 5352 +  14500)>>12
+    psrad       xmm4, 12            ;(d1 * 2217 - c1 * 5352 +   7500)>>12
+
+    packssdw    xmm0, xmm1                      ;op[2] op[0]
+    packssdw    xmm3, xmm4                      ;op[3] op[1]
+    ; 23 22 21 20 03 02 01 00
+    ;
+    ; 33 32 31 30 13 12 11 10
+    ;
+    movdqa      xmm2, xmm0
+    punpcklqdq  xmm0, xmm3                      ;13 12 11 10 03 02 01 00
+    punpckhqdq  xmm2, xmm3                      ;23 22 21 20 33 32 31 30
+
+    movdqa      xmm3, xmm0
+    punpcklwd   xmm0, xmm2                      ;32 30 22 20 12 10 02 00
+    punpckhwd   xmm3, xmm2                      ;33 31 23 21 13 11 03 01
+    movdqa      xmm2, xmm0
+    punpcklwd   xmm0, xmm3                      ;13 12 11 10 03 02 01 00
+    punpckhwd   xmm2, xmm3                      ;33 32 31 30 23 22 21 20
+
+    movdqa      xmm5, XMMWORD PTR[GLOBAL(_7)]
+    pshufd      xmm2, xmm2, 04eh
+    movdqa      xmm3, xmm0
+    paddw       xmm0, xmm2                      ;b1 b1 b1 b1 a1 a1 a1 a1
+    psubw       xmm3, xmm2                      ;c1 c1 c1 c1 d1 d1 d1 d1
+
+    pshufd      xmm0, xmm0, 0d8h                ;b1 b1 a1 a1 b1 b1 a1 a1
+    movdqa      xmm2, xmm3                      ;save d1 for compare
+    pshufd      xmm3, xmm3, 0d8h                ;c1 c1 d1 d1 c1 c1 d1 d1
+    pshuflw     xmm0, xmm0, 0d8h                ;b1 b1 a1 a1 b1 a1 b1 a1
+    pshuflw     xmm3, xmm3, 0d8h                ;c1 c1 d1 d1 c1 d1 c1 d1
+    pshufhw     xmm0, xmm0, 0d8h                ;b1 a1 b1 a1 b1 a1 b1 a1
+    pshufhw     xmm3, xmm3, 0d8h                ;c1 d1 c1 d1 c1 d1 c1 d1
+    movdqa      xmm1, xmm0
+    pmaddwd     xmm0, XMMWORD PTR[GLOBAL(_mult_add)] ;a1 + b1
+    pmaddwd     xmm1, XMMWORD PTR[GLOBAL(_mult_sub)] ;a1 - b1
+
+    pxor        xmm4, xmm4                      ;zero out for compare
+    paddd       xmm0, xmm5
+    paddd       xmm1, xmm5
+    pcmpeqw     xmm2, xmm4
+    psrad       xmm0, 4                         ;(a1 + b1 + 7)>>4
+    psrad       xmm1, 4                         ;(a1 - b1 + 7)>>4
+    pandn       xmm2, XMMWORD PTR[GLOBAL(_cmp_mask)] ;clear upper,
+                                                     ;and keep bit 0 of lower
+
+    movdqa      xmm4, xmm3
+    pmaddwd     xmm3, XMMWORD PTR[GLOBAL(_5352_2217)]    ;c1*2217 + d1*5352
+    pmaddwd     xmm4, XMMWORD PTR[GLOBAL(_2217_neg5352)] ;d1*2217 - c1*5352
+    paddd       xmm3, XMMWORD PTR[GLOBAL(_12000)]
+    paddd       xmm4, XMMWORD PTR[GLOBAL(_51000)]
+    packssdw    xmm0, xmm1                      ;op[8] op[0]
+    psrad       xmm3, 16                ;(c1 * 2217 + d1 * 5352 +  12000)>>16
+    psrad       xmm4, 16                ;(d1 * 2217 - c1 * 5352 +  51000)>>16
+
+    packssdw    xmm3, xmm4                      ;op[12] op[4]
+    movdqa      xmm1, xmm0
+    paddw       xmm3, xmm2                      ;op[4] += (d1!=0)
+    punpcklqdq  xmm0, xmm3                      ;op[4] op[0]
+    punpckhqdq  xmm1, xmm3                      ;op[12] op[8]
+
+    movdqa      XMMWORD PTR[output +  0], xmm0
+    movdqa      XMMWORD PTR[output + 16], xmm1
+
+    STACK_FRAME_DESTROY
+
+;void vp8_short_fdct8x4_sse2(short *input, short *output, int pitch)
+global sym(vp8_short_fdct8x4_sse2) PRIVATE
+sym(vp8_short_fdct8x4_sse2):
+
+    STACK_FRAME_CREATE
+
+        ; read the input data
+        movdqa      xmm0,       [input        ]
+        movdqa      xmm2,       [input+  pitch]
+        lea         input,      [input+2*pitch]
+        movdqa      xmm4,       [input        ]
+        movdqa      xmm3,       [input+  pitch]
+
+        ; transpose for the first stage
+        movdqa      xmm1,       xmm0        ; 00 01 02 03 04 05 06 07
+        movdqa      xmm5,       xmm4        ; 20 21 22 23 24 25 26 27
+
+        punpcklwd   xmm0,       xmm2        ; 00 10 01 11 02 12 03 13
+        punpckhwd   xmm1,       xmm2        ; 04 14 05 15 06 16 07 17
+
+        punpcklwd   xmm4,       xmm3        ; 20 30 21 31 22 32 23 33
+        punpckhwd   xmm5,       xmm3        ; 24 34 25 35 26 36 27 37
+
+        movdqa      xmm2,       xmm0        ; 00 10 01 11 02 12 03 13
+        punpckldq   xmm0,       xmm4        ; 00 10 20 30 01 11 21 31
+
+        punpckhdq   xmm2,       xmm4        ; 02 12 22 32 03 13 23 33
+
+        movdqa      xmm4,       xmm1        ; 04 14 05 15 06 16 07 17
+        punpckldq   xmm4,       xmm5        ; 04 14 24 34 05 15 25 35
+
+        punpckhdq   xmm1,       xmm5        ; 06 16 26 36 07 17 27 37
+        movdqa      xmm3,       xmm2        ; 02 12 22 32 03 13 23 33
+
+        punpckhqdq  xmm3,       xmm1        ; 03 13 23 33 07 17 27 37
+        punpcklqdq  xmm2,       xmm1        ; 02 12 22 32 06 16 26 36
+
+        movdqa      xmm1,       xmm0        ; 00 10 20 30 01 11 21 31
+        punpcklqdq  xmm0,       xmm4        ; 00 10 20 30 04 14 24 34
+
+        punpckhqdq  xmm1,       xmm4        ; 01 11 21 32 05 15 25 35
+
+        ; xmm0 0
+        ; xmm1 1
+        ; xmm2 2
+        ; xmm3 3
+
+        ; first stage
+        movdqa      xmm5,       xmm0
+        movdqa      xmm4,       xmm1
+
+        paddw       xmm0,       xmm3        ; a1 = 0 + 3
+        paddw       xmm1,       xmm2        ; b1 = 1 + 2
+
+        psubw       xmm4,       xmm2        ; c1 = 1 - 2
+        psubw       xmm5,       xmm3        ; d1 = 0 - 3
+
+        psllw       xmm5,        3
+        psllw       xmm4,        3
+
+        psllw       xmm0,        3
+        psllw       xmm1,        3
+
+        ; output 0 and 2
+        movdqa      xmm2,       xmm0        ; a1
+
+        paddw       xmm0,       xmm1        ; op[0] = a1 + b1
+        psubw       xmm2,       xmm1        ; op[2] = a1 - b1
+
+        ; output 1 and 3
+        ; interleave c1, d1
+        movdqa      xmm1,       xmm5        ; d1
+        punpcklwd   xmm1,       xmm4        ; c1 d1
+        punpckhwd   xmm5,       xmm4        ; c1 d1
+
+        movdqa      xmm3,       xmm1
+        movdqa      xmm4,       xmm5
+
+        pmaddwd     xmm1,       XMMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+        pmaddwd     xmm4,       XMMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+
+        pmaddwd     xmm3,       XMMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+        pmaddwd     xmm5,       XMMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+
+        paddd       xmm1,       XMMWORD PTR[GLOBAL(_14500)]
+        paddd       xmm4,       XMMWORD PTR[GLOBAL(_14500)]
+        paddd       xmm3,       XMMWORD PTR[GLOBAL(_7500)]
+        paddd       xmm5,       XMMWORD PTR[GLOBAL(_7500)]
+
+        psrad       xmm1,       12          ; (c1 * 2217 + d1 * 5352 +  14500)>>12
+        psrad       xmm4,       12          ; (c1 * 2217 + d1 * 5352 +  14500)>>12
+        psrad       xmm3,       12          ; (d1 * 2217 - c1 * 5352 +   7500)>>12
+        psrad       xmm5,       12          ; (d1 * 2217 - c1 * 5352 +   7500)>>12
+
+        packssdw    xmm1,       xmm4        ; op[1]
+        packssdw    xmm3,       xmm5        ; op[3]
+
+        ; done with vertical
+        ; transpose for the second stage
+        movdqa      xmm4,       xmm0         ; 00 10 20 30 04 14 24 34
+        movdqa      xmm5,       xmm2         ; 02 12 22 32 06 16 26 36
+
+        punpcklwd   xmm0,       xmm1         ; 00 01 10 11 20 21 30 31
+        punpckhwd   xmm4,       xmm1         ; 04 05 14 15 24 25 34 35
+
+        punpcklwd   xmm2,       xmm3         ; 02 03 12 13 22 23 32 33
+        punpckhwd   xmm5,       xmm3         ; 06 07 16 17 26 27 36 37
+
+        movdqa      xmm1,       xmm0         ; 00 01 10 11 20 21 30 31
+        punpckldq   xmm0,       xmm2         ; 00 01 02 03 10 11 12 13
+
+        punpckhdq   xmm1,       xmm2         ; 20 21 22 23 30 31 32 33
+
+        movdqa      xmm2,       xmm4         ; 04 05 14 15 24 25 34 35
+        punpckldq   xmm2,       xmm5         ; 04 05 06 07 14 15 16 17
+
+        punpckhdq   xmm4,       xmm5         ; 24 25 26 27 34 35 36 37
+        movdqa      xmm3,       xmm1         ; 20 21 22 23 30 31 32 33
+
+        punpckhqdq  xmm3,       xmm4         ; 30 31 32 33 34 35 36 37
+        punpcklqdq  xmm1,       xmm4         ; 20 21 22 23 24 25 26 27
+
+        movdqa      xmm4,       xmm0         ; 00 01 02 03 10 11 12 13
+        punpcklqdq  xmm0,       xmm2         ; 00 01 02 03 04 05 06 07
+
+        punpckhqdq  xmm4,       xmm2         ; 10 11 12 13 14 15 16 17
+
+        ; xmm0 0
+        ; xmm1 4
+        ; xmm2 1
+        ; xmm3 3
+
+        movdqa      xmm5,       xmm0
+        movdqa      xmm2,       xmm1
+
+        paddw       xmm0,       xmm3        ; a1 = 0 + 3
+        paddw       xmm1,       xmm4        ; b1 = 1 + 2
+
+        psubw       xmm4,       xmm2        ; c1 = 1 - 2
+        psubw       xmm5,       xmm3        ; d1 = 0 - 3
+
+        pxor        xmm6,       xmm6        ; zero out for compare
+
+        pcmpeqw     xmm6,       xmm5        ; d1 != 0
+
+        pandn       xmm6,       XMMWORD PTR[GLOBAL(_cmp_mask8x4)]   ; clear upper,
+                                                                    ; and keep bit 0 of lower
+
+        ; output 0 and 2
+        movdqa      xmm2,       xmm0        ; a1
+
+        paddw       xmm0,       xmm1        ; a1 + b1
+        psubw       xmm2,       xmm1        ; a1 - b1
+
+        paddw       xmm0,       XMMWORD PTR[GLOBAL(_7w)]
+        paddw       xmm2,       XMMWORD PTR[GLOBAL(_7w)]
+
+        psraw       xmm0,       4           ; op[0] = (a1 + b1 + 7)>>4
+        psraw       xmm2,       4           ; op[8] = (a1 - b1 + 7)>>4
+
+        ; output 1 and 3
+        ; interleave c1, d1
+        movdqa      xmm1,       xmm5        ; d1
+        punpcklwd   xmm1,       xmm4        ; c1 d1
+        punpckhwd   xmm5,       xmm4        ; c1 d1
+
+        movdqa      xmm3,       xmm1
+        movdqa      xmm4,       xmm5
+
+        pmaddwd     xmm1,       XMMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+        pmaddwd     xmm4,       XMMWORD PTR[GLOBAL (_5352_2217)]    ; c1*2217 + d1*5352
+
+        pmaddwd     xmm3,       XMMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+        pmaddwd     xmm5,       XMMWORD PTR[GLOBAL(_2217_neg5352)]  ; d1*2217 - c1*5352
+
+        paddd       xmm1,       XMMWORD PTR[GLOBAL(_12000)]
+        paddd       xmm4,       XMMWORD PTR[GLOBAL(_12000)]
+        paddd       xmm3,       XMMWORD PTR[GLOBAL(_51000)]
+        paddd       xmm5,       XMMWORD PTR[GLOBAL(_51000)]
+
+        psrad       xmm1,       16          ; (c1 * 2217 + d1 * 5352 +  14500)>>16
+        psrad       xmm4,       16          ; (c1 * 2217 + d1 * 5352 +  14500)>>16
+        psrad       xmm3,       16          ; (d1 * 2217 - c1 * 5352 +   7500)>>16
+        psrad       xmm5,       16          ; (d1 * 2217 - c1 * 5352 +   7500)>>16
+
+        packssdw    xmm1,       xmm4        ; op[4]
+        packssdw    xmm3,       xmm5        ; op[12]
+
+        paddw       xmm1,       xmm6        ; op[4] += (d1!=0)
+
+        movdqa      xmm4,       xmm0
+        movdqa      xmm5,       xmm2
+
+        punpcklqdq  xmm0,       xmm1
+        punpckhqdq  xmm4,       xmm1
+
+        punpcklqdq  xmm2,       xmm3
+        punpckhqdq  xmm5,       xmm3
+
+        movdqa      XMMWORD PTR[output + 0 ],  xmm0
+        movdqa      XMMWORD PTR[output + 16],  xmm2
+        movdqa      XMMWORD PTR[output + 32],  xmm4
+        movdqa      XMMWORD PTR[output + 48],  xmm5
+
+    STACK_FRAME_DESTROY
+
+SECTION_RODATA
+align 16
+_5352_2217:
+    dw 5352
+    dw 2217
+    dw 5352
+    dw 2217
+    dw 5352
+    dw 2217
+    dw 5352
+    dw 2217
+align 16
+_2217_neg5352:
+    dw 2217
+    dw -5352
+    dw 2217
+    dw -5352
+    dw 2217
+    dw -5352
+    dw 2217
+    dw -5352
+align 16
+_mult_add:
+    times 8 dw 1
+align 16
+_cmp_mask:
+    times 4 dw 1
+    times 4 dw 0
+align 16
+_cmp_mask8x4:
+    times 8 dw 1
+align 16
+_mult_sub:
+    dw 1
+    dw -1
+    dw 1
+    dw -1
+    dw 1
+    dw -1
+    dw 1
+    dw -1
+align 16
+_7:
+    times 4 dd 7
+align 16
+_7w:
+    times 8 dw 7
+align 16
+_14500:
+    times 4 dd 14500
+align 16
+_7500:
+    times 4 dd 7500
+align 16
+_12000:
+    times 4 dd 12000
+align 16
+_51000:
+    times 4 dd 51000
diff --git a/media/libvpx/vp8/encoder/x86/denoising_sse2.c b/media/libvpx/vp8/encoder/x86/denoising_sse2.c
new file mode 100644
index 000000000..101d646ef
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/denoising_sse2.c
@@ -0,0 +1,379 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "vp8/encoder/denoising.h"
+#include "vp8/common/reconinter.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8_rtcd.h"
+
+#include <emmintrin.h>
+#include "vpx_ports/emmintrin_compat.h"
+
+/* Compute the sum of all pixel differences of this MB. */
+static INLINE unsigned int abs_sum_diff_16x1(__m128i acc_diff) {
+  const __m128i k_1 = _mm_set1_epi16(1);
+  const __m128i acc_diff_lo = _mm_srai_epi16(
+      _mm_unpacklo_epi8(acc_diff, acc_diff), 8);
+  const __m128i acc_diff_hi = _mm_srai_epi16(
+      _mm_unpackhi_epi8(acc_diff, acc_diff), 8);
+  const __m128i acc_diff_16 = _mm_add_epi16(acc_diff_lo, acc_diff_hi);
+  const __m128i hg_fe_dc_ba = _mm_madd_epi16(acc_diff_16, k_1);
+  const __m128i hgfe_dcba = _mm_add_epi32(hg_fe_dc_ba,
+                                          _mm_srli_si128(hg_fe_dc_ba, 8));
+  const __m128i hgfedcba = _mm_add_epi32(hgfe_dcba,
+                                         _mm_srli_si128(hgfe_dcba, 4));
+  unsigned int sum_diff = abs(_mm_cvtsi128_si32(hgfedcba));
+
+  return sum_diff;
+}
+
+int vp8_denoiser_filter_sse2(unsigned char *mc_running_avg_y,
+                             int mc_avg_y_stride,
+                             unsigned char *running_avg_y, int avg_y_stride,
+                             unsigned char *sig, int sig_stride,
+                             unsigned int motion_magnitude,
+                             int increase_denoising)
+{
+    unsigned char *running_avg_y_start = running_avg_y;
+    unsigned char *sig_start = sig;
+    unsigned int sum_diff_thresh;
+    int r;
+    int shift_inc  = (increase_denoising &&
+        motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ? 1 : 0;
+    __m128i acc_diff = _mm_setzero_si128();
+    const __m128i k_0 = _mm_setzero_si128();
+    const __m128i k_4 = _mm_set1_epi8(4 + shift_inc);
+    const __m128i k_8 = _mm_set1_epi8(8);
+    const __m128i k_16 = _mm_set1_epi8(16);
+    /* Modify each level's adjustment according to motion_magnitude. */
+    const __m128i l3 = _mm_set1_epi8(
+                       (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ?
+                        7 + shift_inc : 6);
+    /* Difference between level 3 and level 2 is 2. */
+    const __m128i l32 = _mm_set1_epi8(2);
+    /* Difference between level 2 and level 1 is 1. */
+    const __m128i l21 = _mm_set1_epi8(1);
+
+    for (r = 0; r < 16; ++r)
+    {
+        /* Calculate differences */
+        const __m128i v_sig = _mm_loadu_si128((__m128i *)(&sig[0]));
+        const __m128i v_mc_running_avg_y = _mm_loadu_si128(
+                                           (__m128i *)(&mc_running_avg_y[0]));
+        __m128i v_running_avg_y;
+        const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg_y, v_sig);
+        const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg_y);
+        /* Obtain the sign. FF if diff is negative. */
+        const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
+        /* Clamp absolute difference to 16 to be used to get mask. Doing this
+         * allows us to use _mm_cmpgt_epi8, which operates on signed byte. */
+        const __m128i clamped_absdiff = _mm_min_epu8(
+                                        _mm_or_si128(pdiff, ndiff), k_16);
+        /* Get masks for l2 l1 and l0 adjustments */
+        const __m128i mask2 = _mm_cmpgt_epi8(k_16, clamped_absdiff);
+        const __m128i mask1 = _mm_cmpgt_epi8(k_8, clamped_absdiff);
+        const __m128i mask0 = _mm_cmpgt_epi8(k_4, clamped_absdiff);
+        /* Get adjustments for l2, l1, and l0 */
+        __m128i adj2 = _mm_and_si128(mask2, l32);
+        const __m128i adj1 = _mm_and_si128(mask1, l21);
+        const __m128i adj0 = _mm_and_si128(mask0, clamped_absdiff);
+        __m128i adj,  padj, nadj;
+
+        /* Combine the adjustments and get absolute adjustments. */
+        adj2 = _mm_add_epi8(adj2, adj1);
+        adj = _mm_sub_epi8(l3, adj2);
+        adj = _mm_andnot_si128(mask0, adj);
+        adj = _mm_or_si128(adj, adj0);
+
+        /* Restore the sign and get positive and negative adjustments. */
+        padj = _mm_andnot_si128(diff_sign, adj);
+        nadj = _mm_and_si128(diff_sign, adj);
+
+        /* Calculate filtered value. */
+        v_running_avg_y = _mm_adds_epu8(v_sig, padj);
+        v_running_avg_y = _mm_subs_epu8(v_running_avg_y, nadj);
+        _mm_storeu_si128((__m128i *)running_avg_y, v_running_avg_y);
+
+        /* Adjustments <=7, and each element in acc_diff can fit in signed
+         * char.
+         */
+        acc_diff = _mm_adds_epi8(acc_diff, padj);
+        acc_diff = _mm_subs_epi8(acc_diff, nadj);
+
+        /* Update pointers for next iteration. */
+        sig += sig_stride;
+        mc_running_avg_y += mc_avg_y_stride;
+        running_avg_y += avg_y_stride;
+    }
+
+    {
+        /* Compute the sum of all pixel differences of this MB. */
+        unsigned int abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+        sum_diff_thresh = SUM_DIFF_THRESHOLD;
+        if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH;
+        if (abs_sum_diff > sum_diff_thresh) {
+          // Before returning to copy the block (i.e., apply no denoising),
+          // check if we can still apply some (weaker) temporal filtering to
+          // this block, that would otherwise not be denoised at all. Simplest
+          // is to apply an additional adjustment to running_avg_y to bring it
+          // closer to sig. The adjustment is capped by a maximum delta, and
+          // chosen such that in most cases the resulting sum_diff will be
+          // within the acceptable range given by sum_diff_thresh.
+
+          // The delta is set by the excess of absolute pixel diff over the
+          // threshold.
+          int delta = ((abs_sum_diff - sum_diff_thresh) >> 8) + 1;
+          // Only apply the adjustment for max delta up to 3.
+          if (delta < 4) {
+            const __m128i k_delta = _mm_set1_epi8(delta);
+            sig -= sig_stride * 16;
+            mc_running_avg_y -= mc_avg_y_stride * 16;
+            running_avg_y -= avg_y_stride * 16;
+            for (r = 0; r < 16; ++r) {
+              __m128i v_running_avg_y =
+                  _mm_loadu_si128((__m128i *)(&running_avg_y[0]));
+              // Calculate differences.
+              const __m128i v_sig = _mm_loadu_si128((__m128i *)(&sig[0]));
+              const __m128i v_mc_running_avg_y =
+                  _mm_loadu_si128((__m128i *)(&mc_running_avg_y[0]));
+              const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg_y, v_sig);
+              const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg_y);
+              // Obtain the sign. FF if diff is negative.
+              const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
+              // Clamp absolute difference to delta to get the adjustment.
+              const __m128i adj =
+                  _mm_min_epu8(_mm_or_si128(pdiff, ndiff), k_delta);
+              // Restore the sign and get positive and negative adjustments.
+              __m128i padj, nadj;
+              padj = _mm_andnot_si128(diff_sign, adj);
+              nadj = _mm_and_si128(diff_sign, adj);
+              // Calculate filtered value.
+              v_running_avg_y = _mm_subs_epu8(v_running_avg_y, padj);
+              v_running_avg_y = _mm_adds_epu8(v_running_avg_y, nadj);
+             _mm_storeu_si128((__m128i *)running_avg_y, v_running_avg_y);
+
+             // Accumulate the adjustments.
+             acc_diff = _mm_subs_epi8(acc_diff, padj);
+             acc_diff = _mm_adds_epi8(acc_diff, nadj);
+
+             // Update pointers for next iteration.
+             sig += sig_stride;
+             mc_running_avg_y += mc_avg_y_stride;
+             running_avg_y += avg_y_stride;
+            }
+            abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+            if (abs_sum_diff > sum_diff_thresh) {
+              return COPY_BLOCK;
+            }
+          } else {
+            return COPY_BLOCK;
+          }
+        }
+    }
+
+    vp8_copy_mem16x16(running_avg_y_start, avg_y_stride, sig_start, sig_stride);
+    return FILTER_BLOCK;
+}
+
+int vp8_denoiser_filter_uv_sse2(unsigned char *mc_running_avg,
+                             int mc_avg_stride,
+                             unsigned char *running_avg, int avg_stride,
+                             unsigned char *sig, int sig_stride,
+                             unsigned int motion_magnitude,
+                             int increase_denoising) {
+    unsigned char *running_avg_start = running_avg;
+    unsigned char *sig_start = sig;
+    unsigned int sum_diff_thresh;
+    int r;
+    int shift_inc  = (increase_denoising &&
+        motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ? 1 : 0;
+    __m128i acc_diff = _mm_setzero_si128();
+    const __m128i k_0 = _mm_setzero_si128();
+    const __m128i k_4 = _mm_set1_epi8(4 + shift_inc);
+    const __m128i k_8 = _mm_set1_epi8(8);
+    const __m128i k_16 = _mm_set1_epi8(16);
+    /* Modify each level's adjustment according to motion_magnitude. */
+    const __m128i l3 = _mm_set1_epi8(
+                       (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ?
+                        7 + shift_inc : 6);
+    /* Difference between level 3 and level 2 is 2. */
+    const __m128i l32 = _mm_set1_epi8(2);
+    /* Difference between level 2 and level 1 is 1. */
+    const __m128i l21 = _mm_set1_epi8(1);
+
+    {
+      const __m128i k_1 = _mm_set1_epi16(1);
+      __m128i vec_sum_block = _mm_setzero_si128();
+
+      // Avoid denoising color signal if its close to average level.
+      for (r = 0; r < 8; ++r) {
+        const __m128i v_sig = _mm_loadl_epi64((__m128i *)(&sig[0]));
+        const __m128i v_sig_unpack = _mm_unpacklo_epi8(v_sig, k_0);
+        vec_sum_block = _mm_add_epi16(vec_sum_block, v_sig_unpack);
+        sig += sig_stride;
+      }
+      sig -= sig_stride * 8;
+      {
+        const __m128i hg_fe_dc_ba = _mm_madd_epi16(vec_sum_block, k_1);
+        const __m128i hgfe_dcba = _mm_add_epi32(hg_fe_dc_ba,
+                                                _mm_srli_si128(hg_fe_dc_ba, 8));
+        const __m128i hgfedcba = _mm_add_epi32(hgfe_dcba,
+                                               _mm_srli_si128(hgfe_dcba, 4));
+        const int sum_block = _mm_cvtsi128_si32(hgfedcba);
+        if (abs(sum_block - (128 * 8 * 8)) < SUM_DIFF_FROM_AVG_THRESH_UV) {
+          return COPY_BLOCK;
+        }
+      }
+    }
+
+    for (r = 0; r < 4; ++r) {
+        /* Calculate differences */
+        const __m128i v_sig_low = _mm_castpd_si128(
+            _mm_load_sd((double *)(&sig[0])));
+        const __m128i v_sig = _mm_castpd_si128(
+            _mm_loadh_pd(_mm_castsi128_pd(v_sig_low),
+                         (double *)(&sig[sig_stride])));
+        const __m128i v_mc_running_avg_low = _mm_castpd_si128(
+            _mm_load_sd((double *)(&mc_running_avg[0])));
+        const __m128i v_mc_running_avg = _mm_castpd_si128(
+            _mm_loadh_pd(_mm_castsi128_pd(v_mc_running_avg_low),
+                         (double *)(&mc_running_avg[mc_avg_stride])));
+        const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg, v_sig);
+        const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg);
+        /* Obtain the sign. FF if diff is negative. */
+        const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
+        /* Clamp absolute difference to 16 to be used to get mask. Doing this
+         * allows us to use _mm_cmpgt_epi8, which operates on signed byte. */
+        const __m128i clamped_absdiff = _mm_min_epu8(
+                                        _mm_or_si128(pdiff, ndiff), k_16);
+        /* Get masks for l2 l1 and l0 adjustments */
+        const __m128i mask2 = _mm_cmpgt_epi8(k_16, clamped_absdiff);
+        const __m128i mask1 = _mm_cmpgt_epi8(k_8, clamped_absdiff);
+        const __m128i mask0 = _mm_cmpgt_epi8(k_4, clamped_absdiff);
+        /* Get adjustments for l2, l1, and l0 */
+        __m128i adj2 = _mm_and_si128(mask2, l32);
+        const __m128i adj1 = _mm_and_si128(mask1, l21);
+        const __m128i adj0 = _mm_and_si128(mask0, clamped_absdiff);
+        __m128i adj,  padj, nadj;
+        __m128i v_running_avg;
+
+        /* Combine the adjustments and get absolute adjustments. */
+        adj2 = _mm_add_epi8(adj2, adj1);
+        adj = _mm_sub_epi8(l3, adj2);
+        adj = _mm_andnot_si128(mask0, adj);
+        adj = _mm_or_si128(adj, adj0);
+
+        /* Restore the sign and get positive and negative adjustments. */
+        padj = _mm_andnot_si128(diff_sign, adj);
+        nadj = _mm_and_si128(diff_sign, adj);
+
+        /* Calculate filtered value. */
+        v_running_avg = _mm_adds_epu8(v_sig, padj);
+        v_running_avg = _mm_subs_epu8(v_running_avg, nadj);
+
+        _mm_storel_pd((double *)&running_avg[0],
+                      _mm_castsi128_pd(v_running_avg));
+        _mm_storeh_pd((double *)&running_avg[avg_stride],
+                      _mm_castsi128_pd(v_running_avg));
+
+        /* Adjustments <=7, and each element in acc_diff can fit in signed
+         * char.
+         */
+        acc_diff = _mm_adds_epi8(acc_diff, padj);
+        acc_diff = _mm_subs_epi8(acc_diff, nadj);
+
+        /* Update pointers for next iteration. */
+        sig += sig_stride * 2;
+        mc_running_avg += mc_avg_stride * 2;
+        running_avg += avg_stride * 2;
+    }
+
+    {
+        unsigned int abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+        sum_diff_thresh = SUM_DIFF_THRESHOLD_UV;
+        if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH_UV;
+        if (abs_sum_diff > sum_diff_thresh) {
+          // Before returning to copy the block (i.e., apply no denoising),
+          // check if we can still apply some (weaker) temporal filtering to
+          // this block, that would otherwise not be denoised at all. Simplest
+          // is to apply an additional adjustment to running_avg_y to bring it
+          // closer to sig. The adjustment is capped by a maximum delta, and
+          // chosen such that in most cases the resulting sum_diff will be
+          // within the acceptable range given by sum_diff_thresh.
+
+          // The delta is set by the excess of absolute pixel diff over the
+          // threshold.
+          int delta = ((abs_sum_diff - sum_diff_thresh) >> 8) + 1;
+          // Only apply the adjustment for max delta up to 3.
+          if (delta < 4) {
+            const __m128i k_delta = _mm_set1_epi8(delta);
+            sig -= sig_stride * 8;
+            mc_running_avg -= mc_avg_stride * 8;
+            running_avg -= avg_stride * 8;
+            for (r = 0; r < 4; ++r) {
+              // Calculate differences.
+              const __m128i v_sig_low = _mm_castpd_si128(
+                  _mm_load_sd((double *)(&sig[0])));
+              const __m128i v_sig = _mm_castpd_si128(
+                  _mm_loadh_pd(_mm_castsi128_pd(v_sig_low),
+                               (double *)(&sig[sig_stride])));
+              const __m128i v_mc_running_avg_low = _mm_castpd_si128(
+                  _mm_load_sd((double *)(&mc_running_avg[0])));
+              const __m128i v_mc_running_avg = _mm_castpd_si128(
+                  _mm_loadh_pd(_mm_castsi128_pd(v_mc_running_avg_low),
+                               (double *)(&mc_running_avg[mc_avg_stride])));
+              const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg, v_sig);
+              const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg);
+              // Obtain the sign. FF if diff is negative.
+              const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
+              // Clamp absolute difference to delta to get the adjustment.
+              const __m128i adj =
+                  _mm_min_epu8(_mm_or_si128(pdiff, ndiff), k_delta);
+              // Restore the sign and get positive and negative adjustments.
+              __m128i padj, nadj;
+              const __m128i v_running_avg_low = _mm_castpd_si128(
+                  _mm_load_sd((double *)(&running_avg[0])));
+              __m128i v_running_avg = _mm_castpd_si128(
+                  _mm_loadh_pd(_mm_castsi128_pd(v_running_avg_low),
+                               (double *)(&running_avg[avg_stride])));
+              padj = _mm_andnot_si128(diff_sign, adj);
+              nadj = _mm_and_si128(diff_sign, adj);
+              // Calculate filtered value.
+              v_running_avg = _mm_subs_epu8(v_running_avg, padj);
+              v_running_avg = _mm_adds_epu8(v_running_avg, nadj);
+
+              _mm_storel_pd((double *)&running_avg[0],
+                            _mm_castsi128_pd(v_running_avg));
+              _mm_storeh_pd((double *)&running_avg[avg_stride],
+                            _mm_castsi128_pd(v_running_avg));
+
+             // Accumulate the adjustments.
+             acc_diff = _mm_subs_epi8(acc_diff, padj);
+             acc_diff = _mm_adds_epi8(acc_diff, nadj);
+
+             // Update pointers for next iteration.
+             sig += sig_stride * 2;
+             mc_running_avg += mc_avg_stride * 2;
+             running_avg += avg_stride * 2;
+            }
+            abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+            if (abs_sum_diff > sum_diff_thresh) {
+              return COPY_BLOCK;
+            }
+          } else {
+            return COPY_BLOCK;
+          }
+        }
+    }
+
+    vp8_copy_mem8x8(running_avg_start, avg_stride, sig_start, sig_stride);
+    return FILTER_BLOCK;
+}
diff --git a/media/libvpx/vp8/encoder/x86/encodeopt.asm b/media/libvpx/vp8/encoder/x86/encodeopt.asm
new file mode 100644
index 000000000..fe26b18e5
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/encodeopt.asm
@@ -0,0 +1,386 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;int vp8_block_error_xmm(short *coeff_ptr,  short *dcoef_ptr)
+global sym(vp8_block_error_xmm) PRIVATE
+sym(vp8_block_error_xmm):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 2
+    push rsi
+    push rdi
+    ; end prologue
+
+        mov         rsi,        arg(0) ;coeff_ptr
+        mov         rdi,        arg(1) ;dcoef_ptr
+
+        movdqa      xmm0,       [rsi]
+        movdqa      xmm1,       [rdi]
+
+        movdqa      xmm2,       [rsi+16]
+        movdqa      xmm3,       [rdi+16]
+
+        psubw       xmm0,       xmm1
+        psubw       xmm2,       xmm3
+
+        pmaddwd     xmm0,       xmm0
+        pmaddwd     xmm2,       xmm2
+
+        paddd       xmm0,       xmm2
+
+        pxor        xmm5,       xmm5
+        movdqa      xmm1,       xmm0
+
+        punpckldq   xmm0,       xmm5
+        punpckhdq   xmm1,       xmm5
+
+        paddd       xmm0,       xmm1
+        movdqa      xmm1,       xmm0
+
+        psrldq      xmm0,       8
+        paddd       xmm0,       xmm1
+
+        movq        rax,        xmm0
+
+    pop rdi
+    pop rsi
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;int vp8_block_error_mmx(short *coeff_ptr,  short *dcoef_ptr)
+global sym(vp8_block_error_mmx) PRIVATE
+sym(vp8_block_error_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 2
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov         rsi,        arg(0) ;coeff_ptr
+        pxor        mm7,        mm7
+
+        mov         rdi,        arg(1) ;dcoef_ptr
+        movq        mm3,        [rsi]
+
+        movq        mm4,        [rdi]
+        movq        mm5,        [rsi+8]
+
+        movq        mm6,        [rdi+8]
+        pxor        mm1,        mm1 ; from movd mm1, dc ; dc =0
+
+        movq        mm2,        mm7
+        psubw       mm5,        mm6
+
+        por         mm1,        mm2
+        pmaddwd     mm5,        mm5
+
+        pcmpeqw     mm1,        mm7
+        psubw       mm3,        mm4
+
+        pand        mm1,        mm3
+        pmaddwd     mm1,        mm1
+
+        paddd       mm1,        mm5
+        movq        mm3,        [rsi+16]
+
+        movq        mm4,        [rdi+16]
+        movq        mm5,        [rsi+24]
+
+        movq        mm6,        [rdi+24]
+        psubw       mm5,        mm6
+
+        pmaddwd     mm5,        mm5
+        psubw       mm3,        mm4
+
+        pmaddwd     mm3,        mm3
+        paddd       mm3,        mm5
+
+        paddd       mm1,        mm3
+        movq        mm0,        mm1
+
+        psrlq       mm1,        32
+        paddd       mm0,        mm1
+
+        movq        rax,        mm0
+
+    pop rdi
+    pop rsi
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;int vp8_mbblock_error_mmx_impl(short *coeff_ptr, short *dcoef_ptr, int dc);
+global sym(vp8_mbblock_error_mmx_impl) PRIVATE
+sym(vp8_mbblock_error_mmx_impl):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov         rsi,        arg(0) ;coeff_ptr
+        pxor        mm7,        mm7
+
+        mov         rdi,        arg(1) ;dcoef_ptr
+        pxor        mm2,        mm2
+
+        movd        mm1,        dword ptr arg(2) ;dc
+        por         mm1,        mm2
+
+        pcmpeqw     mm1,        mm7
+        mov         rcx,        16
+
+.mberror_loop_mmx:
+        movq        mm3,       [rsi]
+        movq        mm4,       [rdi]
+
+        movq        mm5,       [rsi+8]
+        movq        mm6,       [rdi+8]
+
+
+        psubw       mm5,        mm6
+        pmaddwd     mm5,        mm5
+
+        psubw       mm3,        mm4
+        pand        mm3,        mm1
+
+        pmaddwd     mm3,        mm3
+        paddd       mm2,        mm5
+
+        paddd       mm2,        mm3
+        movq        mm3,       [rsi+16]
+
+        movq        mm4,       [rdi+16]
+        movq        mm5,       [rsi+24]
+
+        movq        mm6,       [rdi+24]
+        psubw       mm5,        mm6
+
+        pmaddwd     mm5,        mm5
+        psubw       mm3,        mm4
+
+        pmaddwd     mm3,        mm3
+        paddd       mm2,        mm5
+
+        paddd       mm2,        mm3
+        add         rsi,        32
+
+        add         rdi,        32
+        sub         rcx,        1
+
+        jnz         .mberror_loop_mmx
+
+        movq        mm0,        mm2
+        psrlq       mm2,        32
+
+        paddd       mm0,        mm2
+        movq        rax,        mm0
+
+    pop rdi
+    pop rsi
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;int vp8_mbblock_error_xmm_impl(short *coeff_ptr, short *dcoef_ptr, int dc);
+global sym(vp8_mbblock_error_xmm_impl) PRIVATE
+sym(vp8_mbblock_error_xmm_impl):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    SAVE_XMM 6
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov         rsi,        arg(0) ;coeff_ptr
+        pxor        xmm6,       xmm6
+
+        mov         rdi,        arg(1) ;dcoef_ptr
+        pxor        xmm4,       xmm4
+
+        movd        xmm5,       dword ptr arg(2) ;dc
+        por         xmm5,       xmm4
+
+        pcmpeqw     xmm5,       xmm6
+        mov         rcx,        16
+
+.mberror_loop:
+        movdqa      xmm0,       [rsi]
+        movdqa      xmm1,       [rdi]
+
+        movdqa      xmm2,       [rsi+16]
+        movdqa      xmm3,       [rdi+16]
+
+
+        psubw       xmm2,       xmm3
+        pmaddwd     xmm2,       xmm2
+
+        psubw       xmm0,       xmm1
+        pand        xmm0,       xmm5
+
+        pmaddwd     xmm0,       xmm0
+        add         rsi,        32
+
+        add         rdi,        32
+
+        sub         rcx,        1
+        paddd       xmm4,       xmm2
+
+        paddd       xmm4,       xmm0
+        jnz         .mberror_loop
+
+        movdqa      xmm0,       xmm4
+        punpckldq   xmm0,       xmm6
+
+        punpckhdq   xmm4,       xmm6
+        paddd       xmm0,       xmm4
+
+        movdqa      xmm1,       xmm0
+        psrldq      xmm0,       8
+
+        paddd       xmm0,       xmm1
+        movq        rax,        xmm0
+
+    pop rdi
+    pop rsi
+    ; begin epilog
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;int vp8_mbuverror_mmx_impl(short *s_ptr, short *d_ptr);
+global sym(vp8_mbuverror_mmx_impl) PRIVATE
+sym(vp8_mbuverror_mmx_impl):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 2
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov             rsi,        arg(0) ;s_ptr
+        mov             rdi,        arg(1) ;d_ptr
+
+        mov             rcx,        16
+        pxor            mm7,        mm7
+
+.mbuverror_loop_mmx:
+
+        movq            mm1,        [rsi]
+        movq            mm2,        [rdi]
+
+        psubw           mm1,        mm2
+        pmaddwd         mm1,        mm1
+
+
+        movq            mm3,        [rsi+8]
+        movq            mm4,        [rdi+8]
+
+        psubw           mm3,        mm4
+        pmaddwd         mm3,        mm3
+
+
+        paddd           mm7,        mm1
+        paddd           mm7,        mm3
+
+
+        add             rsi,        16
+        add             rdi,        16
+
+        dec             rcx
+        jnz             .mbuverror_loop_mmx
+
+        movq            mm0,        mm7
+        psrlq           mm7,        32
+
+        paddd           mm0,        mm7
+        movq            rax,        mm0
+
+    pop rdi
+    pop rsi
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;int vp8_mbuverror_xmm_impl(short *s_ptr, short *d_ptr);
+global sym(vp8_mbuverror_xmm_impl) PRIVATE
+sym(vp8_mbuverror_xmm_impl):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 2
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov             rsi,        arg(0) ;s_ptr
+        mov             rdi,        arg(1) ;d_ptr
+
+        mov             rcx,        16
+        pxor            xmm3,       xmm3
+
+.mbuverror_loop:
+
+        movdqa          xmm1,       [rsi]
+        movdqa          xmm2,       [rdi]
+
+        psubw           xmm1,       xmm2
+        pmaddwd         xmm1,       xmm1
+
+        paddd           xmm3,       xmm1
+
+        add             rsi,        16
+        add             rdi,        16
+
+        dec             rcx
+        jnz             .mbuverror_loop
+
+        pxor        xmm0,           xmm0
+        movdqa      xmm1,           xmm3
+
+        movdqa      xmm2,           xmm1
+        punpckldq   xmm1,           xmm0
+
+        punpckhdq   xmm2,           xmm0
+        paddd       xmm1,           xmm2
+
+        movdqa      xmm2,           xmm1
+
+        psrldq      xmm1,           8
+        paddd       xmm1,           xmm2
+
+        movq            rax,            xmm1
+
+    pop rdi
+    pop rsi
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/encoder/x86/fwalsh_sse2.asm b/media/libvpx/vp8/encoder/x86/fwalsh_sse2.asm
new file mode 100644
index 000000000..f4989279f
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/fwalsh_sse2.asm
@@ -0,0 +1,164 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_short_walsh4x4_sse2(short *input, short *output, int pitch)
+global sym(vp8_short_walsh4x4_sse2) PRIVATE
+sym(vp8_short_walsh4x4_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 3
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    mov     rsi, arg(0)           ; input
+    mov     rdi, arg(1)           ; output
+    movsxd  rdx, dword ptr arg(2) ; pitch
+
+    ; first for loop
+    movq    xmm0, MMWORD PTR [rsi]           ; load input
+    movq    xmm1, MMWORD PTR [rsi + rdx]
+    lea     rsi,  [rsi + rdx*2]
+    movq    xmm2, MMWORD PTR [rsi]
+    movq    xmm3, MMWORD PTR [rsi + rdx]
+
+    punpcklwd xmm0,  xmm1
+    punpcklwd xmm2,  xmm3
+
+    movdqa    xmm1, xmm0
+    punpckldq xmm0, xmm2           ; ip[1] ip[0]
+    punpckhdq xmm1, xmm2           ; ip[3] ip[2]
+
+    movdqa    xmm2, xmm0
+    paddw     xmm0, xmm1
+    psubw     xmm2, xmm1
+
+    psllw     xmm0, 2              ; d1  a1
+    psllw     xmm2, 2              ; c1  b1
+
+    movdqa    xmm1, xmm0
+    punpcklqdq xmm0, xmm2          ; b1  a1
+    punpckhqdq xmm1, xmm2          ; c1  d1
+
+    pxor      xmm6, xmm6
+    movq      xmm6, xmm0
+    pxor      xmm7, xmm7
+    pcmpeqw   xmm7, xmm6
+    paddw     xmm7, [GLOBAL(c1)]
+
+    movdqa    xmm2, xmm0
+    paddw     xmm0, xmm1           ; b1+c1  a1+d1
+    psubw     xmm2, xmm1           ; b1-c1  a1-d1
+    paddw     xmm0, xmm7           ; b1+c1  a1+d1+(a1!=0)
+
+    ; second for loop
+    ; input: 13  9  5  1 12  8  4  0 (xmm0)
+    ;        14 10  6  2 15 11  7  3 (xmm2)
+    ; after shuffle:
+    ;        13  5  9  1 12  4  8  0 (xmm0)
+    ;        14  6 10  2 15  7 11  3 (xmm1)
+    pshuflw   xmm3, xmm0, 0xd8
+    pshufhw   xmm0, xmm3, 0xd8
+    pshuflw   xmm3, xmm2, 0xd8
+    pshufhw   xmm1, xmm3, 0xd8
+
+    movdqa    xmm2, xmm0
+    pmaddwd   xmm0, [GLOBAL(c1)]    ; d11 a11 d10 a10
+    pmaddwd   xmm2, [GLOBAL(cn1)]   ; c11 b11 c10 b10
+    movdqa    xmm3, xmm1
+    pmaddwd   xmm1, [GLOBAL(c1)]    ; d12 a12 d13 a13
+    pmaddwd   xmm3, [GLOBAL(cn1)]   ; c12 b12 c13 b13
+
+    pshufd    xmm4, xmm0, 0xd8      ; d11 d10 a11 a10
+    pshufd    xmm5, xmm2, 0xd8      ; c11 c10 b11 b10
+    pshufd    xmm6, xmm1, 0x72      ; d13 d12 a13 a12
+    pshufd    xmm7, xmm3, 0x72      ; c13 c12 b13 b12
+
+    movdqa    xmm0, xmm4
+    punpcklqdq xmm0, xmm5           ; b11 b10 a11 a10
+    punpckhqdq xmm4, xmm5           ; c11 c10 d11 d10
+    movdqa    xmm1, xmm6
+    punpcklqdq xmm1, xmm7           ; b13 b12 a13 a12
+    punpckhqdq xmm6, xmm7           ; c13 c12 d13 d12
+
+    movdqa    xmm2, xmm0
+    paddd     xmm0, xmm4            ; b21 b20 a21 a20
+    psubd     xmm2, xmm4            ; c21 c20 d21 d20
+    movdqa    xmm3, xmm1
+    paddd     xmm1, xmm6            ; b23 b22 a23 a22
+    psubd     xmm3, xmm6            ; c23 c22 d23 d22
+
+    pxor      xmm4, xmm4
+    movdqa    xmm5, xmm4
+    pcmpgtd   xmm4, xmm0
+    pcmpgtd   xmm5, xmm2
+    pand      xmm4, [GLOBAL(cd1)]
+    pand      xmm5, [GLOBAL(cd1)]
+
+    pxor      xmm6, xmm6
+    movdqa    xmm7, xmm6
+    pcmpgtd   xmm6, xmm1
+    pcmpgtd   xmm7, xmm3
+    pand      xmm6, [GLOBAL(cd1)]
+    pand      xmm7, [GLOBAL(cd1)]
+
+    paddd     xmm0, xmm4
+    paddd     xmm2, xmm5
+    paddd     xmm0, [GLOBAL(cd3)]
+    paddd     xmm2, [GLOBAL(cd3)]
+    paddd     xmm1, xmm6
+    paddd     xmm3, xmm7
+    paddd     xmm1, [GLOBAL(cd3)]
+    paddd     xmm3, [GLOBAL(cd3)]
+
+    psrad     xmm0, 3
+    psrad     xmm1, 3
+    psrad     xmm2, 3
+    psrad     xmm3, 3
+    movdqa    xmm4, xmm0
+    punpcklqdq xmm0, xmm1           ; a23 a22 a21 a20
+    punpckhqdq xmm4, xmm1           ; b23 b22 b21 b20
+    movdqa    xmm5, xmm2
+    punpckhqdq xmm2, xmm3           ; c23 c22 c21 c20
+    punpcklqdq xmm5, xmm3           ; d23 d22 d21 d20
+
+    packssdw  xmm0, xmm4            ; b23 b22 b21 b20 a23 a22 a21 a20
+    packssdw  xmm2, xmm5            ; d23 d22 d21 d20 c23 c22 c21 c20
+
+    movdqa  XMMWORD PTR [rdi], xmm0
+    movdqa  XMMWORD PTR [rdi + 16], xmm2
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+c1:
+    dw 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001
+align 16
+cn1:
+    dw 0x0001, 0xffff, 0x0001, 0xffff, 0x0001, 0xffff, 0x0001, 0xffff
+align 16
+cd1:
+    dd 0x00000001, 0x00000001, 0x00000001, 0x00000001
+align 16
+cd3:
+    dd 0x00000003, 0x00000003, 0x00000003, 0x00000003
diff --git a/media/libvpx/vp8/encoder/x86/quantize_mmx.asm b/media/libvpx/vp8/encoder/x86/quantize_mmx.asm
new file mode 100644
index 000000000..2864ce16d
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/quantize_mmx.asm
@@ -0,0 +1,286 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;int vp8_fast_quantize_b_impl_mmx(short *coeff_ptr, short *zbin_ptr,
+;                           short *qcoeff_ptr,short *dequant_ptr,
+;                           short *scan_mask, short *round_ptr,
+;                           short *quant_ptr, short *dqcoeff_ptr);
+global sym(vp8_fast_quantize_b_impl_mmx) PRIVATE
+sym(vp8_fast_quantize_b_impl_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov             rsi,        arg(0) ;coeff_ptr
+        movq            mm0,        [rsi]
+
+        mov             rax,        arg(1) ;zbin_ptr
+        movq            mm1,        [rax]
+
+        movq            mm3,        mm0
+        psraw           mm0,        15
+
+        pxor            mm3,        mm0
+        psubw           mm3,        mm0         ; abs
+
+        movq            mm2,        mm3
+        pcmpgtw         mm1,        mm2
+
+        pandn           mm1,        mm2
+        movq            mm3,        mm1
+
+        mov             rdx,        arg(6) ;quant_ptr
+        movq            mm1,        [rdx]
+
+        mov             rcx,        arg(5) ;round_ptr
+        movq            mm2,        [rcx]
+
+        paddw           mm3,        mm2
+        pmulhuw         mm3,        mm1
+
+        pxor            mm3,        mm0
+        psubw           mm3,        mm0     ;gain the sign back
+
+        mov             rdi,        arg(2) ;qcoeff_ptr
+        movq            mm0,        mm3
+
+        movq            [rdi],      mm3
+
+        mov             rax,        arg(3) ;dequant_ptr
+        movq            mm2,        [rax]
+
+        pmullw          mm3,        mm2
+        mov             rax,        arg(7) ;dqcoeff_ptr
+
+        movq            [rax],      mm3
+
+        ; next 8
+        movq            mm4,        [rsi+8]
+
+        mov             rax,        arg(1) ;zbin_ptr
+        movq            mm5,        [rax+8]
+
+        movq            mm7,        mm4
+        psraw           mm4,        15
+
+        pxor            mm7,        mm4
+        psubw           mm7,        mm4         ; abs
+
+        movq            mm6,        mm7
+        pcmpgtw         mm5,        mm6
+
+        pandn           mm5,        mm6
+        movq            mm7,        mm5
+
+        movq            mm5,        [rdx+8]
+        movq            mm6,        [rcx+8]
+
+        paddw           mm7,        mm6
+        pmulhuw         mm7,        mm5
+
+        pxor            mm7,        mm4
+        psubw           mm7,        mm4;gain the sign back
+
+        mov             rdi,        arg(2) ;qcoeff_ptr
+
+        movq            mm1,        mm7
+        movq            [rdi+8],    mm7
+
+        mov             rax,        arg(3) ;dequant_ptr
+        movq            mm6,        [rax+8]
+
+        pmullw          mm7,        mm6
+        mov             rax,        arg(7) ;dqcoeff_ptr
+
+        movq            [rax+8],    mm7
+
+
+                ; next 8
+        movq            mm4,        [rsi+16]
+
+        mov             rax,        arg(1) ;zbin_ptr
+        movq            mm5,        [rax+16]
+
+        movq            mm7,        mm4
+        psraw           mm4,        15
+
+        pxor            mm7,        mm4
+        psubw           mm7,        mm4         ; abs
+
+        movq            mm6,        mm7
+        pcmpgtw         mm5,        mm6
+
+        pandn           mm5,        mm6
+        movq            mm7,        mm5
+
+        movq            mm5,        [rdx+16]
+        movq            mm6,        [rcx+16]
+
+        paddw           mm7,        mm6
+        pmulhuw         mm7,        mm5
+
+        pxor            mm7,        mm4
+        psubw           mm7,        mm4;gain the sign back
+
+        mov             rdi,        arg(2) ;qcoeff_ptr
+
+        movq            mm1,        mm7
+        movq            [rdi+16],   mm7
+
+        mov             rax,        arg(3) ;dequant_ptr
+        movq            mm6,        [rax+16]
+
+        pmullw          mm7,        mm6
+        mov             rax,        arg(7) ;dqcoeff_ptr
+
+        movq            [rax+16],   mm7
+
+
+                ; next 8
+        movq            mm4,        [rsi+24]
+
+        mov             rax,        arg(1) ;zbin_ptr
+        movq            mm5,        [rax+24]
+
+        movq            mm7,        mm4
+        psraw           mm4,        15
+
+        pxor            mm7,        mm4
+        psubw           mm7,        mm4         ; abs
+
+        movq            mm6,        mm7
+        pcmpgtw         mm5,        mm6
+
+        pandn           mm5,        mm6
+        movq            mm7,        mm5
+
+        movq            mm5,        [rdx+24]
+        movq            mm6,        [rcx+24]
+
+        paddw           mm7,        mm6
+        pmulhuw         mm7,        mm5
+
+        pxor            mm7,        mm4
+        psubw           mm7,        mm4;gain the sign back
+
+        mov             rdi,        arg(2) ;qcoeff_ptr
+
+        movq            mm1,        mm7
+        movq            [rdi+24],   mm7
+
+        mov             rax,        arg(3) ;dequant_ptr
+        movq            mm6,        [rax+24]
+
+        pmullw          mm7,        mm6
+        mov             rax,        arg(7) ;dqcoeff_ptr
+
+        movq            [rax+24],   mm7
+
+
+
+        mov             rdi,        arg(4) ;scan_mask
+        mov             rsi,        arg(2) ;qcoeff_ptr
+
+        pxor            mm5,        mm5
+        pxor            mm7,        mm7
+
+        movq            mm0,        [rsi]
+        movq            mm1,        [rsi+8]
+
+        movq            mm2,        [rdi]
+        movq            mm3,        [rdi+8];
+
+        pcmpeqw         mm0,        mm7
+        pcmpeqw         mm1,        mm7
+
+        pcmpeqw         mm6,        mm6
+        pxor            mm0,        mm6
+
+        pxor            mm1,        mm6
+        psrlw           mm0,        15
+
+        psrlw           mm1,        15
+        pmaddwd         mm0,        mm2
+
+        pmaddwd         mm1,        mm3
+        movq            mm5,        mm0
+
+        paddd           mm5,        mm1
+
+        movq            mm0,        [rsi+16]
+        movq            mm1,        [rsi+24]
+
+        movq            mm2,        [rdi+16]
+        movq            mm3,        [rdi+24];
+
+        pcmpeqw         mm0,        mm7
+        pcmpeqw         mm1,        mm7
+
+        pcmpeqw         mm6,        mm6
+        pxor            mm0,        mm6
+
+        pxor            mm1,        mm6
+        psrlw           mm0,        15
+
+        psrlw           mm1,        15
+        pmaddwd         mm0,        mm2
+
+        pmaddwd         mm1,        mm3
+        paddd           mm5,        mm0
+
+        paddd           mm5,        mm1
+        movq            mm0,        mm5
+
+        psrlq           mm5,        32
+        paddd           mm0,        mm5
+
+        ; eob adjustment begins here
+        movq            rcx,        mm0
+        and             rcx,        0xffff
+
+        xor             rdx,        rdx
+        sub             rdx,        rcx ; rdx=-rcx
+
+        bsr             rax,        rcx
+        inc             rax
+
+        sar             rdx,        31
+        and             rax,        rdx
+        ; Substitute the sse assembly for the old mmx mixed assembly/C. The
+        ; following is kept as reference
+        ;    movq            rcx,        mm0
+        ;    bsr             rax,        rcx
+        ;
+        ;    mov             eob,        rax
+        ;    mov             eee,        rcx
+        ;
+        ;if(eee==0)
+        ;{
+        ;    eob=-1;
+        ;}
+        ;else if(eee<0)
+        ;{
+        ;    eob=15;
+        ;}
+        ;d->eob = eob+1;
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/encoder/x86/quantize_sse2.c b/media/libvpx/vp8/encoder/x86/quantize_sse2.c
new file mode 100644
index 000000000..b4e92e04b
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/quantize_sse2.c
@@ -0,0 +1,228 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_ports/x86.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/encoder/block.h"
+#include "vp8/common/entropy.h" /* vp8_default_inv_zig_zag */
+
+#include <mmintrin.h> /* MMX */
+#include <xmmintrin.h> /* SSE */
+#include <emmintrin.h> /* SSE2 */
+
+#define SELECT_EOB(i, z) \
+    do { \
+        short boost = *zbin_boost_ptr; \
+        int cmp = (x[z] < boost) | (y[z] == 0); \
+        zbin_boost_ptr++; \
+        if (cmp) \
+            break; \
+        qcoeff_ptr[z] = y[z]; \
+        eob = i; \
+        zbin_boost_ptr = b->zrun_zbin_boost; \
+    } while (0)
+
+void vp8_regular_quantize_b_sse2(BLOCK *b, BLOCKD *d)
+{
+    char eob = 0;
+    short *zbin_boost_ptr;
+    short *qcoeff_ptr      = d->qcoeff;
+    DECLARE_ALIGNED(16, short, x[16]);
+    DECLARE_ALIGNED(16, short, y[16]);
+
+    __m128i sz0, x0, sz1, x1, y0, y1, x_minus_zbin0, x_minus_zbin1;
+    __m128i quant_shift0 = _mm_load_si128((__m128i *)(b->quant_shift));
+    __m128i quant_shift1 = _mm_load_si128((__m128i *)(b->quant_shift + 8));
+    __m128i z0 = _mm_load_si128((__m128i *)(b->coeff));
+    __m128i z1 = _mm_load_si128((__m128i *)(b->coeff+8));
+    __m128i zbin_extra = _mm_cvtsi32_si128(b->zbin_extra);
+    __m128i zbin0 = _mm_load_si128((__m128i *)(b->zbin));
+    __m128i zbin1 = _mm_load_si128((__m128i *)(b->zbin + 8));
+    __m128i round0 = _mm_load_si128((__m128i *)(b->round));
+    __m128i round1 = _mm_load_si128((__m128i *)(b->round + 8));
+    __m128i quant0 = _mm_load_si128((__m128i *)(b->quant));
+    __m128i quant1 = _mm_load_si128((__m128i *)(b->quant + 8));
+    __m128i dequant0 = _mm_load_si128((__m128i *)(d->dequant));
+    __m128i dequant1 = _mm_load_si128((__m128i *)(d->dequant + 8));
+
+    memset(qcoeff_ptr, 0, 32);
+
+    /* Duplicate to all lanes. */
+    zbin_extra = _mm_shufflelo_epi16(zbin_extra, 0);
+    zbin_extra = _mm_unpacklo_epi16(zbin_extra, zbin_extra);
+
+    /* Sign of z: z >> 15 */
+    sz0 = _mm_srai_epi16(z0, 15);
+    sz1 = _mm_srai_epi16(z1, 15);
+
+    /* x = abs(z): (z ^ sz) - sz */
+    x0 = _mm_xor_si128(z0, sz0);
+    x1 = _mm_xor_si128(z1, sz1);
+    x0 = _mm_sub_epi16(x0, sz0);
+    x1 = _mm_sub_epi16(x1, sz1);
+
+    /* zbin[] + zbin_extra */
+    zbin0 = _mm_add_epi16(zbin0, zbin_extra);
+    zbin1 = _mm_add_epi16(zbin1, zbin_extra);
+
+    /* In C x is compared to zbin where zbin = zbin[] + boost + extra. Rebalance
+     * the equation because boost is the only value which can change:
+     * x - (zbin[] + extra) >= boost */
+    x_minus_zbin0 = _mm_sub_epi16(x0, zbin0);
+    x_minus_zbin1 = _mm_sub_epi16(x1, zbin1);
+
+    _mm_store_si128((__m128i *)(x), x_minus_zbin0);
+    _mm_store_si128((__m128i *)(x + 8), x_minus_zbin1);
+
+    /* All the remaining calculations are valid whether they are done now with
+     * simd or later inside the loop one at a time. */
+    x0 = _mm_add_epi16(x0, round0);
+    x1 = _mm_add_epi16(x1, round1);
+
+    y0 = _mm_mulhi_epi16(x0, quant0);
+    y1 = _mm_mulhi_epi16(x1, quant1);
+
+    y0 = _mm_add_epi16(y0, x0);
+    y1 = _mm_add_epi16(y1, x1);
+
+    /* Instead of shifting each value independently we convert the scaling
+     * factor with 1 << (16 - shift) so we can use multiply/return high half. */
+    y0 = _mm_mulhi_epi16(y0, quant_shift0);
+    y1 = _mm_mulhi_epi16(y1, quant_shift1);
+
+    /* Return the sign: (y ^ sz) - sz */
+    y0 = _mm_xor_si128(y0, sz0);
+    y1 = _mm_xor_si128(y1, sz1);
+    y0 = _mm_sub_epi16(y0, sz0);
+    y1 = _mm_sub_epi16(y1, sz1);
+
+    _mm_store_si128((__m128i *)(y), y0);
+    _mm_store_si128((__m128i *)(y + 8), y1);
+
+    zbin_boost_ptr = b->zrun_zbin_boost;
+
+    /* The loop gets unrolled anyway. Avoid the vp8_default_zig_zag1d lookup. */
+    SELECT_EOB(1, 0);
+    SELECT_EOB(2, 1);
+    SELECT_EOB(3, 4);
+    SELECT_EOB(4, 8);
+    SELECT_EOB(5, 5);
+    SELECT_EOB(6, 2);
+    SELECT_EOB(7, 3);
+    SELECT_EOB(8, 6);
+    SELECT_EOB(9, 9);
+    SELECT_EOB(10, 12);
+    SELECT_EOB(11, 13);
+    SELECT_EOB(12, 10);
+    SELECT_EOB(13, 7);
+    SELECT_EOB(14, 11);
+    SELECT_EOB(15, 14);
+    SELECT_EOB(16, 15);
+
+    y0 = _mm_load_si128((__m128i *)(d->qcoeff));
+    y1 = _mm_load_si128((__m128i *)(d->qcoeff + 8));
+
+    /* dqcoeff = qcoeff * dequant */
+    y0 = _mm_mullo_epi16(y0, dequant0);
+    y1 = _mm_mullo_epi16(y1, dequant1);
+
+    _mm_store_si128((__m128i *)(d->dqcoeff), y0);
+    _mm_store_si128((__m128i *)(d->dqcoeff + 8), y1);
+
+    *d->eob = eob;
+}
+
+void vp8_fast_quantize_b_sse2(BLOCK *b, BLOCKD *d)
+{
+  __m128i z0 = _mm_load_si128((__m128i *)(b->coeff));
+  __m128i z1 = _mm_load_si128((__m128i *)(b->coeff + 8));
+  __m128i round0 = _mm_load_si128((__m128i *)(b->round));
+  __m128i round1 = _mm_load_si128((__m128i *)(b->round + 8));
+  __m128i quant_fast0 = _mm_load_si128((__m128i *)(b->quant_fast));
+  __m128i quant_fast1 = _mm_load_si128((__m128i *)(b->quant_fast + 8));
+  __m128i dequant0 = _mm_load_si128((__m128i *)(d->dequant));
+  __m128i dequant1 = _mm_load_si128((__m128i *)(d->dequant + 8));
+  __m128i inv_zig_zag0 = _mm_load_si128((const __m128i *)(vp8_default_inv_zig_zag));
+  __m128i inv_zig_zag1 = _mm_load_si128((const __m128i *)(vp8_default_inv_zig_zag + 8));
+
+  __m128i sz0, sz1, x0, x1, y0, y1, xdq0, xdq1, zeros, ones;
+
+  /* sign of z: z >> 15 */
+  sz0 = _mm_srai_epi16(z0, 15);
+  sz1 = _mm_srai_epi16(z1, 15);
+
+  /* x = abs(z): (z ^ sz) - sz */
+  x0 = _mm_xor_si128(z0, sz0);
+  x1 = _mm_xor_si128(z1, sz1);
+  x0 = _mm_sub_epi16(x0, sz0);
+  x1 = _mm_sub_epi16(x1, sz1);
+
+  /* x += round */
+  x0 = _mm_add_epi16(x0, round0);
+  x1 = _mm_add_epi16(x1, round1);
+
+  /* y = (x * quant) >> 16 */
+  y0 = _mm_mulhi_epi16(x0, quant_fast0);
+  y1 = _mm_mulhi_epi16(x1, quant_fast1);
+
+  /* x = abs(y) = (y ^ sz) - sz */
+  y0 = _mm_xor_si128(y0, sz0);
+  y1 = _mm_xor_si128(y1, sz1);
+  x0 = _mm_sub_epi16(y0, sz0);
+  x1 = _mm_sub_epi16(y1, sz1);
+
+  /* qcoeff = x */
+  _mm_store_si128((__m128i *)(d->qcoeff), x0);
+  _mm_store_si128((__m128i *)(d->qcoeff + 8), x1);
+
+  /* x * dequant */
+  xdq0 = _mm_mullo_epi16(x0, dequant0);
+  xdq1 = _mm_mullo_epi16(x1, dequant1);
+
+  /* dqcoeff = x * dequant */
+  _mm_store_si128((__m128i *)(d->dqcoeff), xdq0);
+  _mm_store_si128((__m128i *)(d->dqcoeff + 8), xdq1);
+
+  /* build a mask for the zig zag */
+  zeros = _mm_setzero_si128();
+
+  x0 = _mm_cmpeq_epi16(x0, zeros);
+  x1 = _mm_cmpeq_epi16(x1, zeros);
+
+  ones = _mm_cmpeq_epi16(zeros, zeros);
+
+  x0 = _mm_xor_si128(x0, ones);
+  x1 = _mm_xor_si128(x1, ones);
+
+  x0 = _mm_and_si128(x0, inv_zig_zag0);
+  x1 = _mm_and_si128(x1, inv_zig_zag1);
+
+  x0 = _mm_max_epi16(x0, x1);
+
+  /* now down to 8 */
+  x1 = _mm_shuffle_epi32(x0, 0xE); // 0b00001110
+
+  x0 = _mm_max_epi16(x0, x1);
+
+  /* only 4 left */
+  x1 = _mm_shufflelo_epi16(x0, 0xE); // 0b00001110
+
+  x0 = _mm_max_epi16(x0, x1);
+
+  /* okay, just 2! */
+  x1 = _mm_shufflelo_epi16(x0, 0x1); // 0b00000001
+
+  x0 = _mm_max_epi16(x0, x1);
+
+  *d->eob = 0xFF & _mm_cvtsi128_si32(x0);
+}
diff --git a/media/libvpx/vp8/encoder/x86/quantize_sse4.c b/media/libvpx/vp8/encoder/x86/quantize_sse4.c
new file mode 100644
index 000000000..601dd23a2
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/quantize_sse4.c
@@ -0,0 +1,128 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <smmintrin.h> /* SSE4.1 */
+
+#include "./vp8_rtcd.h"
+#include "vp8/encoder/block.h"
+#include "vp8/common/entropy.h" /* vp8_default_inv_zig_zag */
+
+#define SELECT_EOB(i, z, x, y, q) \
+    do { \
+        short boost = *zbin_boost_ptr; \
+        short x_z = _mm_extract_epi16(x, z); \
+        short y_z = _mm_extract_epi16(y, z); \
+        int cmp = (x_z < boost) | (y_z == 0); \
+        zbin_boost_ptr++; \
+        if (cmp) \
+            break; \
+        q = _mm_insert_epi16(q, y_z, z); \
+        eob = i; \
+        zbin_boost_ptr = b->zrun_zbin_boost; \
+    } while (0)
+
+void vp8_regular_quantize_b_sse4_1(BLOCK *b, BLOCKD *d) {
+    char eob = 0;
+    short *zbin_boost_ptr  = b->zrun_zbin_boost;
+
+    __m128i sz0, x0, sz1, x1, y0, y1, x_minus_zbin0, x_minus_zbin1,
+            dqcoeff0, dqcoeff1;
+    __m128i quant_shift0 = _mm_load_si128((__m128i *)(b->quant_shift));
+    __m128i quant_shift1 = _mm_load_si128((__m128i *)(b->quant_shift + 8));
+    __m128i z0 = _mm_load_si128((__m128i *)(b->coeff));
+    __m128i z1 = _mm_load_si128((__m128i *)(b->coeff+8));
+    __m128i zbin_extra = _mm_cvtsi32_si128(b->zbin_extra);
+    __m128i zbin0 = _mm_load_si128((__m128i *)(b->zbin));
+    __m128i zbin1 = _mm_load_si128((__m128i *)(b->zbin + 8));
+    __m128i round0 = _mm_load_si128((__m128i *)(b->round));
+    __m128i round1 = _mm_load_si128((__m128i *)(b->round + 8));
+    __m128i quant0 = _mm_load_si128((__m128i *)(b->quant));
+    __m128i quant1 = _mm_load_si128((__m128i *)(b->quant + 8));
+    __m128i dequant0 = _mm_load_si128((__m128i *)(d->dequant));
+    __m128i dequant1 = _mm_load_si128((__m128i *)(d->dequant + 8));
+    __m128i qcoeff0 = _mm_setzero_si128();
+    __m128i qcoeff1 = _mm_setzero_si128();
+
+    /* Duplicate to all lanes. */
+    zbin_extra = _mm_shufflelo_epi16(zbin_extra, 0);
+    zbin_extra = _mm_unpacklo_epi16(zbin_extra, zbin_extra);
+
+    /* Sign of z: z >> 15 */
+    sz0 = _mm_srai_epi16(z0, 15);
+    sz1 = _mm_srai_epi16(z1, 15);
+
+    /* x = abs(z): (z ^ sz) - sz */
+    x0 = _mm_xor_si128(z0, sz0);
+    x1 = _mm_xor_si128(z1, sz1);
+    x0 = _mm_sub_epi16(x0, sz0);
+    x1 = _mm_sub_epi16(x1, sz1);
+
+    /* zbin[] + zbin_extra */
+    zbin0 = _mm_add_epi16(zbin0, zbin_extra);
+    zbin1 = _mm_add_epi16(zbin1, zbin_extra);
+
+    /* In C x is compared to zbin where zbin = zbin[] + boost + extra. Rebalance
+     * the equation because boost is the only value which can change:
+     * x - (zbin[] + extra) >= boost */
+    x_minus_zbin0 = _mm_sub_epi16(x0, zbin0);
+    x_minus_zbin1 = _mm_sub_epi16(x1, zbin1);
+
+    /* All the remaining calculations are valid whether they are done now with
+     * simd or later inside the loop one at a time. */
+    x0 = _mm_add_epi16(x0, round0);
+    x1 = _mm_add_epi16(x1, round1);
+
+    y0 = _mm_mulhi_epi16(x0, quant0);
+    y1 = _mm_mulhi_epi16(x1, quant1);
+
+    y0 = _mm_add_epi16(y0, x0);
+    y1 = _mm_add_epi16(y1, x1);
+
+    /* Instead of shifting each value independently we convert the scaling
+     * factor with 1 << (16 - shift) so we can use multiply/return high half. */
+    y0 = _mm_mulhi_epi16(y0, quant_shift0);
+    y1 = _mm_mulhi_epi16(y1, quant_shift1);
+
+    /* Return the sign: (y ^ sz) - sz */
+    y0 = _mm_xor_si128(y0, sz0);
+    y1 = _mm_xor_si128(y1, sz1);
+    y0 = _mm_sub_epi16(y0, sz0);
+    y1 = _mm_sub_epi16(y1, sz1);
+
+    /* The loop gets unrolled anyway. Avoid the vp8_default_zig_zag1d lookup. */
+    SELECT_EOB(1, 0, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(2, 1, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(3, 4, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(4, 0, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(5, 5, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(6, 2, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(7, 3, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(8, 6, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(9, 1, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(10, 4, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(11, 5, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(12, 2, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(13, 7, x_minus_zbin0, y0, qcoeff0);
+    SELECT_EOB(14, 3, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(15, 6, x_minus_zbin1, y1, qcoeff1);
+    SELECT_EOB(16, 7, x_minus_zbin1, y1, qcoeff1);
+
+    _mm_store_si128((__m128i *)(d->qcoeff), qcoeff0);
+    _mm_store_si128((__m128i *)(d->qcoeff + 8), qcoeff1);
+
+    dqcoeff0 = _mm_mullo_epi16(qcoeff0, dequant0);
+    dqcoeff1 = _mm_mullo_epi16(qcoeff1, dequant1);
+
+    _mm_store_si128((__m128i *)(d->dqcoeff), dqcoeff0);
+    _mm_store_si128((__m128i *)(d->dqcoeff + 8), dqcoeff1);
+
+    *d->eob = eob;
+}
diff --git a/media/libvpx/vp8/encoder/x86/quantize_ssse3.c b/media/libvpx/vp8/encoder/x86/quantize_ssse3.c
new file mode 100644
index 000000000..448217ff4
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/quantize_ssse3.c
@@ -0,0 +1,114 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <tmmintrin.h> /* SSSE3 */
+
+#include "vp8/encoder/block.h"
+
+/* bitscan reverse (bsr) */
+#if defined(_MSC_VER)
+#include <intrin.h>
+#pragma intrinsic(_BitScanReverse)
+static int bsr(int mask) {
+  int eob;
+  _BitScanReverse(&eob, mask);
+  eob++;
+  if (mask == 0)
+    eob = 0;
+  return eob;
+}
+#else
+static int bsr(int mask) {
+  int eob;
+#if defined(__GNUC__) && __GNUC__
+  __asm__ __volatile__("bsr %1, %0" : "=r" (eob) : "r" (mask) : "flags");
+#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+  asm volatile("bsr %1, %0" : "=r" (eob) : "r" (mask) : "flags");
+#endif
+  eob++;
+  if (mask == 0)
+    eob = 0;
+  return eob;
+}
+#endif
+
+void vp8_fast_quantize_b_ssse3(BLOCK *b, BLOCKD *d) {
+  int eob, mask;
+
+  __m128i z0 = _mm_load_si128((__m128i *)(b->coeff));
+  __m128i z1 = _mm_load_si128((__m128i *)(b->coeff + 8));
+  __m128i round0 = _mm_load_si128((__m128i *)(b->round));
+  __m128i round1 = _mm_load_si128((__m128i *)(b->round + 8));
+  __m128i quant_fast0 = _mm_load_si128((__m128i *)(b->quant_fast));
+  __m128i quant_fast1 = _mm_load_si128((__m128i *)(b->quant_fast + 8));
+  __m128i dequant0 = _mm_load_si128((__m128i *)(d->dequant));
+  __m128i dequant1 = _mm_load_si128((__m128i *)(d->dequant + 8));
+
+  __m128i sz0, sz1, x, x0, x1, y0, y1, zeros, abs0, abs1;
+
+  DECLARE_ALIGNED(16, const uint8_t, pshufb_zig_zag_mask[16]) =
+    { 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 };
+  __m128i zig_zag = _mm_load_si128((const __m128i *)pshufb_zig_zag_mask);
+
+  /* sign of z: z >> 15 */
+  sz0 = _mm_srai_epi16(z0, 15);
+  sz1 = _mm_srai_epi16(z1, 15);
+
+  /* x = abs(z) */
+  x0 = _mm_abs_epi16(z0);
+  x1 = _mm_abs_epi16(z1);
+
+  /* x += round */
+  x0 = _mm_add_epi16(x0, round0);
+  x1 = _mm_add_epi16(x1, round1);
+
+  /* y = (x * quant) >> 16 */
+  y0 = _mm_mulhi_epi16(x0, quant_fast0);
+  y1 = _mm_mulhi_epi16(x1, quant_fast1);
+
+  /* ASM saves Y for EOB */
+  /* I think we can ignore that because adding the sign doesn't change anything
+   * and multiplying 0 by dequant is OK as well */
+  abs0 = y0;
+  abs1 = y1;
+
+  /* Restore the sign bit. */
+  y0 = _mm_xor_si128(y0, sz0);
+  y1 = _mm_xor_si128(y1, sz1);
+  x0 = _mm_sub_epi16(y0, sz0);
+  x1 = _mm_sub_epi16(y1, sz1);
+
+  /* qcoeff = x */
+  _mm_store_si128((__m128i *)(d->qcoeff), x0);
+  _mm_store_si128((__m128i *)(d->qcoeff + 8), x1);
+
+  /* x * dequant */
+  x0 = _mm_mullo_epi16(x0, dequant0);
+  x1 = _mm_mullo_epi16(x1, dequant1);
+
+  /* dqcoeff = x * dequant */
+  _mm_store_si128((__m128i *)(d->dqcoeff), x0);
+  _mm_store_si128((__m128i *)(d->dqcoeff + 8), x1);
+
+  zeros = _mm_setzero_si128();
+
+  x0 = _mm_cmpgt_epi16(abs0, zeros);
+  x1 = _mm_cmpgt_epi16(abs1, zeros);
+
+  x = _mm_packs_epi16(x0, x1);
+
+  x = _mm_shuffle_epi8(x, zig_zag);
+
+  mask = _mm_movemask_epi8(x);
+
+  eob = bsr(mask);
+
+  *d->eob = 0xFF & eob;
+}
diff --git a/media/libvpx/vp8/encoder/x86/ssim_opt_x86_64.asm b/media/libvpx/vp8/encoder/x86/ssim_opt_x86_64.asm
new file mode 100644
index 000000000..5964a85f2
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/ssim_opt_x86_64.asm
@@ -0,0 +1,216 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+%include "vpx_ports/x86_abi_support.asm"
+
+; tabulate_ssim - sums sum_s,sum_r,sum_sq_s,sum_sq_r, sum_sxr
+%macro TABULATE_SSIM 0
+        paddusw         xmm15, xmm3  ; sum_s
+        paddusw         xmm14, xmm4  ; sum_r
+        movdqa          xmm1, xmm3
+        pmaddwd         xmm1, xmm1
+        paddd           xmm13, xmm1 ; sum_sq_s
+        movdqa          xmm2, xmm4
+        pmaddwd         xmm2, xmm2
+        paddd           xmm12, xmm2 ; sum_sq_r
+        pmaddwd         xmm3, xmm4
+        paddd           xmm11, xmm3  ; sum_sxr
+%endmacro
+
+; Sum across the register %1 starting with q words
+%macro SUM_ACROSS_Q 1
+        movdqa          xmm2,%1
+        punpckldq       %1,xmm0
+        punpckhdq       xmm2,xmm0
+        paddq           %1,xmm2
+        movdqa          xmm2,%1
+        punpcklqdq      %1,xmm0
+        punpckhqdq      xmm2,xmm0
+        paddq           %1,xmm2
+%endmacro
+
+; Sum across the register %1 starting with q words
+%macro SUM_ACROSS_W 1
+        movdqa          xmm1, %1
+        punpcklwd       %1,xmm0
+        punpckhwd       xmm1,xmm0
+        paddd           %1, xmm1
+        SUM_ACROSS_Q    %1
+%endmacro
+;void ssim_parms_sse2(
+;    unsigned char *s,
+;    int sp,
+;    unsigned char *r,
+;    int rp
+;    unsigned long *sum_s,
+;    unsigned long *sum_r,
+;    unsigned long *sum_sq_s,
+;    unsigned long *sum_sq_r,
+;    unsigned long *sum_sxr);
+;
+; TODO: Use parm passing through structure, probably don't need the pxors
+; ( calling app will initialize to 0 ) could easily fit everything in sse2
+; without too much hastle, and can probably do better estimates with psadw
+; or pavgb At this point this is just meant to be first pass for calculating
+; all the parms needed for 16x16 ssim so we can play with dssim as distortion
+; in mode selection code.
+global sym(vp8_ssim_parms_16x16_sse2) PRIVATE
+sym(vp8_ssim_parms_16x16_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 9
+    SAVE_XMM 15
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    mov             rsi,        arg(0) ;s
+    mov             rcx,        arg(1) ;sp
+    mov             rdi,        arg(2) ;r
+    mov             rax,        arg(3) ;rp
+
+    pxor            xmm0, xmm0
+    pxor            xmm15,xmm15  ;sum_s
+    pxor            xmm14,xmm14  ;sum_r
+    pxor            xmm13,xmm13  ;sum_sq_s
+    pxor            xmm12,xmm12  ;sum_sq_r
+    pxor            xmm11,xmm11  ;sum_sxr
+
+    mov             rdx, 16      ;row counter
+.NextRow:
+
+    ;grab source and reference pixels
+    movdqu          xmm5, [rsi]
+    movdqu          xmm6, [rdi]
+    movdqa          xmm3, xmm5
+    movdqa          xmm4, xmm6
+    punpckhbw       xmm3, xmm0 ; high_s
+    punpckhbw       xmm4, xmm0 ; high_r
+
+    TABULATE_SSIM
+
+    movdqa          xmm3, xmm5
+    movdqa          xmm4, xmm6
+    punpcklbw       xmm3, xmm0 ; low_s
+    punpcklbw       xmm4, xmm0 ; low_r
+
+    TABULATE_SSIM
+
+    add             rsi, rcx   ; next s row
+    add             rdi, rax   ; next r row
+
+    dec             rdx        ; counter
+    jnz .NextRow
+
+    SUM_ACROSS_W    xmm15
+    SUM_ACROSS_W    xmm14
+    SUM_ACROSS_Q    xmm13
+    SUM_ACROSS_Q    xmm12
+    SUM_ACROSS_Q    xmm11
+
+    mov             rdi,arg(4)
+    movd            [rdi], xmm15;
+    mov             rdi,arg(5)
+    movd            [rdi], xmm14;
+    mov             rdi,arg(6)
+    movd            [rdi], xmm13;
+    mov             rdi,arg(7)
+    movd            [rdi], xmm12;
+    mov             rdi,arg(8)
+    movd            [rdi], xmm11;
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void ssim_parms_sse2(
+;    unsigned char *s,
+;    int sp,
+;    unsigned char *r,
+;    int rp
+;    unsigned long *sum_s,
+;    unsigned long *sum_r,
+;    unsigned long *sum_sq_s,
+;    unsigned long *sum_sq_r,
+;    unsigned long *sum_sxr);
+;
+; TODO: Use parm passing through structure, probably don't need the pxors
+; ( calling app will initialize to 0 ) could easily fit everything in sse2
+; without too much hastle, and can probably do better estimates with psadw
+; or pavgb At this point this is just meant to be first pass for calculating
+; all the parms needed for 16x16 ssim so we can play with dssim as distortion
+; in mode selection code.
+global sym(vp8_ssim_parms_8x8_sse2) PRIVATE
+sym(vp8_ssim_parms_8x8_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 9
+    SAVE_XMM 15
+    push        rsi
+    push        rdi
+    ; end prolog
+
+    mov             rsi,        arg(0) ;s
+    mov             rcx,        arg(1) ;sp
+    mov             rdi,        arg(2) ;r
+    mov             rax,        arg(3) ;rp
+
+    pxor            xmm0, xmm0
+    pxor            xmm15,xmm15  ;sum_s
+    pxor            xmm14,xmm14  ;sum_r
+    pxor            xmm13,xmm13  ;sum_sq_s
+    pxor            xmm12,xmm12  ;sum_sq_r
+    pxor            xmm11,xmm11  ;sum_sxr
+
+    mov             rdx, 8      ;row counter
+.NextRow:
+
+    ;grab source and reference pixels
+    movq            xmm3, [rsi]
+    movq            xmm4, [rdi]
+    punpcklbw       xmm3, xmm0 ; low_s
+    punpcklbw       xmm4, xmm0 ; low_r
+
+    TABULATE_SSIM
+
+    add             rsi, rcx   ; next s row
+    add             rdi, rax   ; next r row
+
+    dec             rdx        ; counter
+    jnz .NextRow
+
+    SUM_ACROSS_W    xmm15
+    SUM_ACROSS_W    xmm14
+    SUM_ACROSS_Q    xmm13
+    SUM_ACROSS_Q    xmm12
+    SUM_ACROSS_Q    xmm11
+
+    mov             rdi,arg(4)
+    movd            [rdi], xmm15;
+    mov             rdi,arg(5)
+    movd            [rdi], xmm14;
+    mov             rdi,arg(6)
+    movd            [rdi], xmm13;
+    mov             rdi,arg(7)
+    movd            [rdi], xmm12;
+    mov             rdi,arg(8)
+    movd            [rdi], xmm11;
+
+    ; begin epilog
+    pop         rdi
+    pop         rsi
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/encoder/x86/subtract_mmx.asm b/media/libvpx/vp8/encoder/x86/subtract_mmx.asm
new file mode 100644
index 000000000..794dd22f7
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/subtract_mmx.asm
@@ -0,0 +1,223 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_subtract_b_mmx_impl(unsigned char *z,  int src_stride,
+;                            short *diff, unsigned char *Predictor,
+;                            int pitch);
+global sym(vp8_subtract_b_mmx_impl) PRIVATE
+sym(vp8_subtract_b_mmx_impl):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push rsi
+    push rdi
+    ; end prolog
+
+
+        mov     rdi,        arg(2) ;diff
+        mov     rax,        arg(3) ;Predictor
+        mov     rsi,        arg(0) ;z
+        movsxd  rdx,        dword ptr arg(1);src_stride;
+        movsxd  rcx,        dword ptr arg(4);pitch
+        pxor    mm7,        mm7
+
+        movd    mm0,        [rsi]
+        movd    mm1,        [rax]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    [rdi],      mm0
+
+
+        movd    mm0,        [rsi+rdx]
+        movd    mm1,        [rax+rcx]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    [rdi+rcx*2],mm0
+
+
+        movd    mm0,        [rsi+rdx*2]
+        movd    mm1,        [rax+rcx*2]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    [rdi+rcx*4],        mm0
+
+        lea     rsi,        [rsi+rdx*2]
+        lea     rcx,        [rcx+rcx*2]
+
+
+
+        movd    mm0,        [rsi+rdx]
+        movd    mm1,        [rax+rcx]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    [rdi+rcx*2],        mm0
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;void vp8_subtract_mby_mmx(short *diff, unsigned char *src, int src_stride,
+;unsigned char *pred, int pred_stride)
+global sym(vp8_subtract_mby_mmx) PRIVATE
+sym(vp8_subtract_mby_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    push rsi
+    push rdi
+    ; end prolog
+
+    mov         rdi,        arg(0)          ;diff
+    mov         rsi,        arg(1)          ;src
+    movsxd      rdx,        dword ptr arg(2);src_stride
+    mov         rax,        arg(3)          ;pred
+    push        rbx
+    movsxd      rbx,        dword ptr arg(4);pred_stride
+
+    pxor        mm0,        mm0
+    mov         rcx,        16
+
+
+.submby_loop:
+    movq        mm1,        [rsi]
+    movq        mm3,        [rax]
+
+    movq        mm2,        mm1
+    movq        mm4,        mm3
+
+    punpcklbw   mm1,        mm0
+    punpcklbw   mm3,        mm0
+
+    punpckhbw   mm2,        mm0
+    punpckhbw   mm4,        mm0
+
+    psubw       mm1,        mm3
+    psubw       mm2,        mm4
+
+    movq        [rdi],      mm1
+    movq        [rdi+8],    mm2
+
+    movq        mm1,        [rsi+8]
+    movq        mm3,        [rax+8]
+
+    movq        mm2,        mm1
+    movq        mm4,        mm3
+
+    punpcklbw   mm1,        mm0
+    punpcklbw   mm3,        mm0
+
+    punpckhbw   mm2,        mm0
+    punpckhbw   mm4,        mm0
+
+    psubw       mm1,        mm3
+    psubw       mm2,        mm4
+
+    movq        [rdi+16],   mm1
+    movq        [rdi+24],   mm2
+    add         rdi,        32
+    lea         rax,        [rax+rbx]
+    lea         rsi,        [rsi+rdx]
+    dec         rcx
+    jnz         .submby_loop
+
+    pop rbx
+    pop rdi
+    pop rsi
+    ; begin epilog
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;vp8_subtract_mbuv_mmx(short *diff, unsigned char *usrc, unsigned char *vsrc,
+;                         int src_stride, unsigned char *upred,
+;                         unsigned char *vpred, int pred_stride)
+
+global sym(vp8_subtract_mbuv_mmx) PRIVATE
+sym(vp8_subtract_mbuv_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    push rsi
+    push rdi
+    ; end prolog
+
+    mov         rdi,        arg(0)          ;diff
+    mov         rsi,        arg(1)          ;usrc
+    movsxd      rdx,        dword ptr arg(3);src_stride;
+    mov         rax,        arg(4)          ;upred
+    add         rdi,        256*2           ;diff = diff + 256 (shorts)
+    mov         rcx,        8
+    push        rbx
+    movsxd      rbx,        dword ptr arg(6);pred_stride
+
+    pxor        mm7,        mm7
+
+.submbu_loop:
+    movq        mm0,        [rsi]
+    movq        mm1,        [rax]
+    movq        mm3,        mm0
+    movq        mm4,        mm1
+    punpcklbw   mm0,        mm7
+    punpcklbw   mm1,        mm7
+    punpckhbw   mm3,        mm7
+    punpckhbw   mm4,        mm7
+    psubw       mm0,        mm1
+    psubw       mm3,        mm4
+    movq        [rdi],      mm0
+    movq        [rdi+8],    mm3
+    add         rdi, 16
+    add         rsi, rdx
+    add         rax, rbx
+
+    dec         rcx
+    jnz         .submbu_loop
+
+    mov         rsi,        arg(2)          ;vsrc
+    mov         rax,        arg(5)          ;vpred
+    mov         rcx,        8
+
+.submbv_loop:
+    movq        mm0,        [rsi]
+    movq        mm1,        [rax]
+    movq        mm3,        mm0
+    movq        mm4,        mm1
+    punpcklbw   mm0,        mm7
+    punpcklbw   mm1,        mm7
+    punpckhbw   mm3,        mm7
+    punpckhbw   mm4,        mm7
+    psubw       mm0,        mm1
+    psubw       mm3,        mm4
+    movq        [rdi],      mm0
+    movq        [rdi+8],    mm3
+    add         rdi, 16
+    add         rsi, rdx
+    add         rax, rbx
+
+    dec         rcx
+    jnz         .submbv_loop
+
+    pop         rbx
+    ; begin epilog
+    pop rdi
+    pop rsi
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
diff --git a/media/libvpx/vp8/encoder/x86/subtract_sse2.asm b/media/libvpx/vp8/encoder/x86/subtract_sse2.asm
new file mode 100644
index 000000000..a5d17f5be
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/subtract_sse2.asm
@@ -0,0 +1,245 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+;void vp8_subtract_b_sse2_impl(unsigned char *z,  int src_stride,
+;                            short *diff, unsigned char *Predictor,
+;                            int pitch);
+global sym(vp8_subtract_b_sse2_impl) PRIVATE
+sym(vp8_subtract_b_sse2_impl):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+        mov     rdi,        arg(2) ;diff
+        mov     rax,        arg(3) ;Predictor
+        mov     rsi,        arg(0) ;z
+        movsxd  rdx,        dword ptr arg(1);src_stride;
+        movsxd  rcx,        dword ptr arg(4);pitch
+        pxor    mm7,        mm7
+
+        movd    mm0,        [rsi]
+        movd    mm1,        [rax]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    MMWORD PTR [rdi],      mm0
+
+        movd    mm0,        [rsi+rdx]
+        movd    mm1,        [rax+rcx]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    MMWORD PTR [rdi+rcx*2], mm0
+
+        movd    mm0,        [rsi+rdx*2]
+        movd    mm1,        [rax+rcx*2]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    MMWORD PTR [rdi+rcx*4], mm0
+
+        lea     rsi,        [rsi+rdx*2]
+        lea     rcx,        [rcx+rcx*2]
+
+        movd    mm0,        [rsi+rdx]
+        movd    mm1,        [rax+rcx]
+        punpcklbw   mm0,    mm7
+        punpcklbw   mm1,    mm7
+        psubw   mm0,        mm1
+        movq    MMWORD PTR [rdi+rcx*2], mm0
+
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+;void vp8_subtract_mby_sse2(short *diff, unsigned char *src, int src_stride,
+;unsigned char *pred, int pred_stride)
+global sym(vp8_subtract_mby_sse2) PRIVATE
+sym(vp8_subtract_mby_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 5
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+    mov         rdi,        arg(0)          ;diff
+    mov         rsi,        arg(1)          ;src
+    movsxd      rdx,        dword ptr arg(2);src_stride
+    mov         rax,        arg(3)          ;pred
+    movdqa      xmm4,       [GLOBAL(t80)]
+    push        rbx
+    mov         rcx,        8               ; do two lines at one time
+    movsxd      rbx,        dword ptr arg(4);pred_stride
+
+.submby_loop:
+    movdqa      xmm0,       [rsi]           ; src
+    movdqa      xmm1,       [rax]           ; pred
+
+    movdqa      xmm2,       xmm0
+    psubb       xmm0,       xmm1
+
+    pxor        xmm1,       xmm4            ;convert to signed values
+    pxor        xmm2,       xmm4
+    pcmpgtb     xmm1,       xmm2            ; obtain sign information
+
+    movdqa      xmm2,       xmm0
+    punpcklbw   xmm0,       xmm1            ; put sign back to subtraction
+    punpckhbw   xmm2,       xmm1            ; put sign back to subtraction
+
+    movdqa      xmm3,       [rsi + rdx]
+    movdqa      xmm5,       [rax + rbx]
+
+    lea         rsi,        [rsi+rdx*2]
+    lea         rax,        [rax+rbx*2]
+
+    movdqa      [rdi],      xmm0
+    movdqa      [rdi +16],  xmm2
+
+    movdqa      xmm1,       xmm3
+    psubb       xmm3,       xmm5
+
+    pxor        xmm5,       xmm4            ;convert to signed values
+    pxor        xmm1,       xmm4
+    pcmpgtb     xmm5,       xmm1            ; obtain sign information
+
+    movdqa      xmm1,       xmm3
+    punpcklbw   xmm3,       xmm5            ; put sign back to subtraction
+    punpckhbw   xmm1,       xmm5            ; put sign back to subtraction
+
+    movdqa      [rdi +32],  xmm3
+    movdqa      [rdi +48],  xmm1
+
+    add         rdi,        64
+    dec         rcx
+    jnz         .submby_loop
+
+    pop rbx
+    pop rdi
+    pop rsi
+    ; begin epilog
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+;vp8_subtract_mbuv_sse2(short *diff, unsigned char *usrc, unsigned char *vsrc,
+;                         int src_stride, unsigned char *upred,
+;                         unsigned char *vpred, int pred_stride)
+global sym(vp8_subtract_mbuv_sse2) PRIVATE
+sym(vp8_subtract_mbuv_sse2):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 7
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    ; end prolog
+
+    movdqa      xmm4,       [GLOBAL(t80)]
+    mov         rdi,        arg(0)          ;diff
+    mov         rsi,        arg(1)          ;usrc
+    movsxd      rdx,        dword ptr arg(3);src_stride;
+    mov         rax,        arg(4)          ;upred
+    add         rdi,        256*2           ;diff = diff + 256 (shorts)
+    mov         rcx,        4
+    push        rbx
+    movsxd      rbx,        dword ptr arg(6);pred_stride
+
+    ;u
+.submbu_loop:
+    movq        xmm0,       [rsi]           ; src
+    movq        xmm2,       [rsi+rdx]       ; src -- next line
+    movq        xmm1,       [rax]           ; pred
+    movq        xmm3,       [rax+rbx]       ; pred -- next line
+    lea         rsi,        [rsi + rdx*2]
+    lea         rax,        [rax + rbx*2]
+
+    punpcklqdq  xmm0,       xmm2
+    punpcklqdq  xmm1,       xmm3
+
+    movdqa      xmm2,       xmm0
+    psubb       xmm0,       xmm1            ; subtraction with sign missed
+
+    pxor        xmm1,       xmm4            ;convert to signed values
+    pxor        xmm2,       xmm4
+    pcmpgtb     xmm1,       xmm2            ; obtain sign information
+
+    movdqa      xmm2,       xmm0
+    movdqa      xmm3,       xmm1
+    punpcklbw   xmm0,       xmm1            ; put sign back to subtraction
+    punpckhbw   xmm2,       xmm3            ; put sign back to subtraction
+
+    movdqa      [rdi],      xmm0            ; store difference
+    movdqa      [rdi +16],  xmm2            ; store difference
+    add         rdi,        32
+    sub         rcx, 1
+    jnz         .submbu_loop
+
+    mov         rsi,        arg(2)          ;vsrc
+    mov         rax,        arg(5)          ;vpred
+    mov         rcx,        4
+
+    ;v
+.submbv_loop:
+    movq        xmm0,       [rsi]           ; src
+    movq        xmm2,       [rsi+rdx]       ; src -- next line
+    movq        xmm1,       [rax]           ; pred
+    movq        xmm3,       [rax+rbx]       ; pred -- next line
+    lea         rsi,        [rsi + rdx*2]
+    lea         rax,        [rax + rbx*2]
+
+    punpcklqdq  xmm0,       xmm2
+    punpcklqdq  xmm1,       xmm3
+
+    movdqa      xmm2,       xmm0
+    psubb       xmm0,       xmm1            ; subtraction with sign missed
+
+    pxor        xmm1,       xmm4            ;convert to signed values
+    pxor        xmm2,       xmm4
+    pcmpgtb     xmm1,       xmm2            ; obtain sign information
+
+    movdqa      xmm2,       xmm0
+    movdqa      xmm3,       xmm1
+    punpcklbw   xmm0,       xmm1            ; put sign back to subtraction
+    punpckhbw   xmm2,       xmm3            ; put sign back to subtraction
+
+    movdqa      [rdi],      xmm0            ; store difference
+    movdqa      [rdi +16],  xmm2            ; store difference
+    add         rdi,        32
+    sub         rcx, 1
+    jnz         .submbv_loop
+
+    pop         rbx
+    ; begin epilog
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+t80:
+    times 16 db 0x80
diff --git a/media/libvpx/vp8/encoder/x86/temporal_filter_apply_sse2.asm b/media/libvpx/vp8/encoder/x86/temporal_filter_apply_sse2.asm
new file mode 100644
index 000000000..bd92b398a
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/temporal_filter_apply_sse2.asm
@@ -0,0 +1,207 @@
+;
+;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+;  Use of this source code is governed by a BSD-style license
+;  that can be found in the LICENSE file in the root of the source
+;  tree. An additional intellectual property rights grant can be found
+;  in the file PATENTS.  All contributing project authors may
+;  be found in the AUTHORS file in the root of the source tree.
+;
+
+
+%include "vpx_ports/x86_abi_support.asm"
+
+; void vp8_temporal_filter_apply_sse2 | arg
+;  (unsigned char  *frame1,           |  0
+;   unsigned int    stride,           |  1
+;   unsigned char  *frame2,           |  2
+;   unsigned int    block_size,       |  3
+;   int             strength,         |  4
+;   int             filter_weight,    |  5
+;   unsigned int   *accumulator,      |  6
+;   unsigned short *count)            |  7
+global sym(vp8_temporal_filter_apply_sse2) PRIVATE
+sym(vp8_temporal_filter_apply_sse2):
+
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    SAVE_XMM 7
+    GET_GOT     rbx
+    push        rsi
+    push        rdi
+    ALIGN_STACK 16, rax
+    %define block_size    0
+    %define strength      16
+    %define filter_weight 32
+    %define rounding_bit  48
+    %define rbp_backup    64
+    %define stack_size    80
+    sub         rsp,           stack_size
+    mov         [rsp + rbp_backup], rbp
+    ; end prolog
+
+        mov         rdx,            arg(3)
+        mov         [rsp + block_size], rdx
+        movd        xmm6,            arg(4)
+        movdqa      [rsp + strength], xmm6 ; where strength is used, all 16 bytes are read
+
+        ; calculate the rounding bit outside the loop
+        ; 0x8000 >> (16 - strength)
+        mov         rdx,            16
+        sub         rdx,            arg(4) ; 16 - strength
+        movq        xmm4,           rdx    ; can't use rdx w/ shift
+        movdqa      xmm5,           [GLOBAL(_const_top_bit)]
+        psrlw       xmm5,           xmm4
+        movdqa      [rsp + rounding_bit], xmm5
+
+        mov         rsi,            arg(0) ; src/frame1
+        mov         rdx,            arg(2) ; predictor frame
+        mov         rdi,            arg(6) ; accumulator
+        mov         rax,            arg(7) ; count
+
+        ; dup the filter weight and store for later
+        movd        xmm0,           arg(5) ; filter_weight
+        pshuflw     xmm0,           xmm0, 0
+        punpcklwd   xmm0,           xmm0
+        movdqa      [rsp + filter_weight], xmm0
+
+        mov         rbp,            arg(1) ; stride
+        pxor        xmm7,           xmm7   ; zero for extraction
+
+        lea         rcx,            [rdx + 16*16*1]
+        cmp         dword ptr [rsp + block_size], 8
+        jne         .temporal_filter_apply_load_16
+        lea         rcx,            [rdx + 8*8*1]
+
+.temporal_filter_apply_load_8:
+        movq        xmm0,           [rsi]  ; first row
+        lea         rsi,            [rsi + rbp] ; += stride
+        punpcklbw   xmm0,           xmm7   ; src[ 0- 7]
+        movq        xmm1,           [rsi]  ; second row
+        lea         rsi,            [rsi + rbp] ; += stride
+        punpcklbw   xmm1,           xmm7   ; src[ 8-15]
+        jmp         .temporal_filter_apply_load_finished
+
+.temporal_filter_apply_load_16:
+        movdqa      xmm0,           [rsi]  ; src (frame1)
+        lea         rsi,            [rsi + rbp] ; += stride
+        movdqa      xmm1,           xmm0
+        punpcklbw   xmm0,           xmm7   ; src[ 0- 7]
+        punpckhbw   xmm1,           xmm7   ; src[ 8-15]
+
+.temporal_filter_apply_load_finished:
+        movdqa      xmm2,           [rdx]  ; predictor (frame2)
+        movdqa      xmm3,           xmm2
+        punpcklbw   xmm2,           xmm7   ; pred[ 0- 7]
+        punpckhbw   xmm3,           xmm7   ; pred[ 8-15]
+
+        ; modifier = src_byte - pixel_value
+        psubw       xmm0,           xmm2   ; src - pred[ 0- 7]
+        psubw       xmm1,           xmm3   ; src - pred[ 8-15]
+
+        ; modifier *= modifier
+        pmullw      xmm0,           xmm0   ; modifer[ 0- 7]^2
+        pmullw      xmm1,           xmm1   ; modifer[ 8-15]^2
+
+        ; modifier *= 3
+        pmullw      xmm0,           [GLOBAL(_const_3w)]
+        pmullw      xmm1,           [GLOBAL(_const_3w)]
+
+        ; modifer += 0x8000 >> (16 - strength)
+        paddw       xmm0,           [rsp + rounding_bit]
+        paddw       xmm1,           [rsp + rounding_bit]
+
+        ; modifier >>= strength
+        psrlw       xmm0,           [rsp + strength]
+        psrlw       xmm1,           [rsp + strength]
+
+        ; modifier = 16 - modifier
+        ; saturation takes care of modifier > 16
+        movdqa      xmm3,           [GLOBAL(_const_16w)]
+        movdqa      xmm2,           [GLOBAL(_const_16w)]
+        psubusw     xmm3,           xmm1
+        psubusw     xmm2,           xmm0
+
+        ; modifier *= filter_weight
+        pmullw      xmm2,           [rsp + filter_weight]
+        pmullw      xmm3,           [rsp + filter_weight]
+
+        ; count
+        movdqa      xmm4,           [rax]
+        movdqa      xmm5,           [rax+16]
+        ; += modifier
+        paddw       xmm4,           xmm2
+        paddw       xmm5,           xmm3
+        ; write back
+        movdqa      [rax],          xmm4
+        movdqa      [rax+16],       xmm5
+        lea         rax,            [rax + 16*2] ; count += 16*(sizeof(short))
+
+        ; load and extract the predictor up to shorts
+        pxor        xmm7,           xmm7
+        movdqa      xmm0,           [rdx]
+        lea         rdx,            [rdx + 16*1] ; pred += 16*(sizeof(char))
+        movdqa      xmm1,           xmm0
+        punpcklbw   xmm0,           xmm7   ; pred[ 0- 7]
+        punpckhbw   xmm1,           xmm7   ; pred[ 8-15]
+
+        ; modifier *= pixel_value
+        pmullw      xmm0,           xmm2
+        pmullw      xmm1,           xmm3
+
+        ; expand to double words
+        movdqa      xmm2,           xmm0
+        punpcklwd   xmm0,           xmm7   ; [ 0- 3]
+        punpckhwd   xmm2,           xmm7   ; [ 4- 7]
+        movdqa      xmm3,           xmm1
+        punpcklwd   xmm1,           xmm7   ; [ 8-11]
+        punpckhwd   xmm3,           xmm7   ; [12-15]
+
+        ; accumulator
+        movdqa      xmm4,           [rdi]
+        movdqa      xmm5,           [rdi+16]
+        movdqa      xmm6,           [rdi+32]
+        movdqa      xmm7,           [rdi+48]
+        ; += modifier
+        paddd       xmm4,           xmm0
+        paddd       xmm5,           xmm2
+        paddd       xmm6,           xmm1
+        paddd       xmm7,           xmm3
+        ; write back
+        movdqa      [rdi],          xmm4
+        movdqa      [rdi+16],       xmm5
+        movdqa      [rdi+32],       xmm6
+        movdqa      [rdi+48],       xmm7
+        lea         rdi,            [rdi + 16*4] ; accumulator += 16*(sizeof(int))
+
+        cmp         rdx,            rcx
+        je          .temporal_filter_apply_epilog
+        pxor        xmm7,           xmm7   ; zero for extraction
+        cmp         dword ptr [rsp + block_size], 16
+        je          .temporal_filter_apply_load_16
+        jmp         .temporal_filter_apply_load_8
+
+.temporal_filter_apply_epilog:
+    ; begin epilog
+    mov         rbp,            [rsp + rbp_backup]
+    add         rsp,            stack_size
+    pop         rsp
+    pop         rdi
+    pop         rsi
+    RESTORE_GOT
+    RESTORE_XMM
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+SECTION_RODATA
+align 16
+_const_3w:
+    times 8 dw 3
+align 16
+_const_top_bit:
+    times 8 dw 1<<15
+align 16
+_const_16w
+    times 8 dw 16
diff --git a/media/libvpx/vp8/encoder/x86/vp8_enc_stubs_mmx.c b/media/libvpx/vp8/encoder/x86/vp8_enc_stubs_mmx.c
new file mode 100644
index 000000000..cf3d8ca4a
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/vp8_enc_stubs_mmx.c
@@ -0,0 +1,78 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_ports/x86.h"
+#include "vp8/encoder/block.h"
+
+void vp8_short_fdct4x4_mmx(short *input, short *output, int pitch);
+void vp8_short_fdct8x4_mmx(short *input, short *output, int pitch)
+{
+    vp8_short_fdct4x4_mmx(input,   output,    pitch);
+    vp8_short_fdct4x4_mmx(input + 4, output + 16, pitch);
+}
+
+int vp8_fast_quantize_b_impl_mmx(short *coeff_ptr, short *zbin_ptr,
+                                 short *qcoeff_ptr, short *dequant_ptr,
+                                 const short *scan_mask, short *round_ptr,
+                                 short *quant_ptr, short *dqcoeff_ptr);
+void vp8_fast_quantize_b_mmx(BLOCK *b, BLOCKD *d)
+{
+    const short *scan_mask   = vp8_default_zig_zag_mask;
+    short *coeff_ptr   = b->coeff;
+    short *zbin_ptr    = b->zbin;
+    short *round_ptr   = b->round;
+    short *quant_ptr   = b->quant_fast;
+    short *qcoeff_ptr  = d->qcoeff;
+    short *dqcoeff_ptr = d->dqcoeff;
+    short *dequant_ptr = d->dequant;
+
+    *d->eob = (char)vp8_fast_quantize_b_impl_mmx(
+                                                 coeff_ptr,
+                                                 zbin_ptr,
+                                                 qcoeff_ptr,
+                                                 dequant_ptr,
+                                                 scan_mask,
+
+                                                 round_ptr,
+                                                 quant_ptr,
+                                                 dqcoeff_ptr
+                                                 );
+}
+
+int vp8_mbblock_error_mmx_impl(short *coeff_ptr, short *dcoef_ptr, int dc);
+int vp8_mbblock_error_mmx(MACROBLOCK *mb, int dc)
+{
+    short *coeff_ptr =  mb->block[0].coeff;
+    short *dcoef_ptr =  mb->e_mbd.block[0].dqcoeff;
+    return vp8_mbblock_error_mmx_impl(coeff_ptr, dcoef_ptr, dc);
+}
+
+int vp8_mbuverror_mmx_impl(short *s_ptr, short *d_ptr);
+int vp8_mbuverror_mmx(MACROBLOCK *mb)
+{
+    short *s_ptr = &mb->coeff[256];
+    short *d_ptr = &mb->e_mbd.dqcoeff[256];
+    return vp8_mbuverror_mmx_impl(s_ptr, d_ptr);
+}
+
+void vp8_subtract_b_mmx_impl(unsigned char *z,  int src_stride,
+                             short *diff, unsigned char *predictor,
+                             int pitch);
+void vp8_subtract_b_mmx(BLOCK *be, BLOCKD *bd, int pitch)
+{
+    unsigned char *z = *(be->base_src) + be->src;
+    unsigned int  src_stride = be->src_stride;
+    short *diff = &be->src_diff[0];
+    unsigned char *predictor = &bd->predictor[0];
+    vp8_subtract_b_mmx_impl(z, src_stride, diff, predictor, pitch);
+}
diff --git a/media/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c b/media/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c
new file mode 100644
index 000000000..3dfbee368
--- /dev/null
+++ b/media/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "vpx_config.h"
+#include "vp8_rtcd.h"
+#include "vpx_ports/x86.h"
+#include "vp8/encoder/block.h"
+
+int vp8_mbblock_error_xmm_impl(short *coeff_ptr, short *dcoef_ptr, int dc);
+int vp8_mbblock_error_xmm(MACROBLOCK *mb, int dc)
+{
+    short *coeff_ptr =  mb->block[0].coeff;
+    short *dcoef_ptr =  mb->e_mbd.block[0].dqcoeff;
+    return vp8_mbblock_error_xmm_impl(coeff_ptr, dcoef_ptr, dc);
+}
+
+int vp8_mbuverror_xmm_impl(short *s_ptr, short *d_ptr);
+int vp8_mbuverror_xmm(MACROBLOCK *mb)
+{
+    short *s_ptr = &mb->coeff[256];
+    short *d_ptr = &mb->e_mbd.dqcoeff[256];
+    return vp8_mbuverror_xmm_impl(s_ptr, d_ptr);
+}
+
+void vp8_subtract_b_sse2_impl(unsigned char *z,  int src_stride,
+                             short *diff, unsigned char *predictor,
+                             int pitch);
+void vp8_subtract_b_sse2(BLOCK *be, BLOCKD *bd, int pitch)
+{
+    unsigned char *z = *(be->base_src) + be->src;
+    unsigned int  src_stride = be->src_stride;
+    short *diff = &be->src_diff[0];
+    unsigned char *predictor = &bd->predictor[0];
+    vp8_subtract_b_sse2_impl(z, src_stride, diff, predictor, pitch);
+}
diff --git a/media/libvpx/vp8/vp8_cx_iface.c b/media/libvpx/vp8/vp8_cx_iface.c
new file mode 100644
index 000000000..5674176f1
--- /dev/null
+++ b/media/libvpx/vp8/vp8_cx_iface.c
@@ -0,0 +1,1403 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include "./vpx_config.h"
+#include "./vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "./vpx_scale_rtcd.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/internal/vpx_codec_internal.h"
+#include "vpx_version.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vp8/encoder/onyx_int.h"
+#include "vpx/vp8cx.h"
+#include "vp8/encoder/firstpass.h"
+#include "vp8/common/onyx.h"
+#include <stdlib.h>
+#include <string.h>
+
+struct vp8_extracfg
+{
+    struct vpx_codec_pkt_list *pkt_list;
+    int                         cpu_used;                    /** available cpu percentage in 1/16*/
+    unsigned int                enable_auto_alt_ref;           /** if encoder decides to uses alternate reference frame */
+    unsigned int                noise_sensitivity;
+    unsigned int                Sharpness;
+    unsigned int                static_thresh;
+    unsigned int                token_partitions;
+    unsigned int                arnr_max_frames;    /* alt_ref Noise Reduction Max Frame Count */
+    unsigned int                arnr_strength;    /* alt_ref Noise Reduction Strength */
+    unsigned int                arnr_type;        /* alt_ref filter type */
+    vp8e_tuning                 tuning;
+    unsigned int                cq_level;         /* constrained quality level */
+    unsigned int                rc_max_intra_bitrate_pct;
+    unsigned int                screen_content_mode;
+
+};
+
+static struct vp8_extracfg default_extracfg = {
+  NULL,
+#if !(CONFIG_REALTIME_ONLY)
+  0,                          /* cpu_used      */
+#else
+  4,                          /* cpu_used      */
+#endif
+  0,                          /* enable_auto_alt_ref */
+  0,                          /* noise_sensitivity */
+  0,                          /* Sharpness */
+  0,                          /* static_thresh */
+#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+  VP8_EIGHT_TOKENPARTITION,
+#else
+  VP8_ONE_TOKENPARTITION,     /* token_partitions */
+#endif
+  0,                          /* arnr_max_frames */
+  3,                          /* arnr_strength */
+  3,                          /* arnr_type*/
+  0,                          /* tuning*/
+  10,                         /* cq_level */
+  0,                          /* rc_max_intra_bitrate_pct */
+  0,                          /* screen_content_mode */
+};
+
+struct vpx_codec_alg_priv
+{
+    vpx_codec_priv_t        base;
+    vpx_codec_enc_cfg_t     cfg;
+    struct vp8_extracfg     vp8_cfg;
+    VP8_CONFIG              oxcf;
+    struct VP8_COMP        *cpi;
+    unsigned char          *cx_data;
+    unsigned int            cx_data_sz;
+    vpx_image_t             preview_img;
+    unsigned int            next_frame_flag;
+    vp8_postproc_cfg_t      preview_ppcfg;
+    /* pkt_list size depends on the maximum number of lagged frames allowed. */
+    vpx_codec_pkt_list_decl(64) pkt_list;
+    unsigned int                fixed_kf_cntr;
+    vpx_enc_frame_flags_t   control_frame_flags;
+};
+
+
+static vpx_codec_err_t
+update_error_state(vpx_codec_alg_priv_t                 *ctx,
+                   const struct vpx_internal_error_info *error)
+{
+    vpx_codec_err_t res;
+
+    if ((res = error->error_code))
+        ctx->base.err_detail = error->has_detail
+                               ? error->detail
+                               : NULL;
+
+    return res;
+}
+
+
+#undef ERROR
+#define ERROR(str) do {\
+        ctx->base.err_detail = str;\
+        return VPX_CODEC_INVALID_PARAM;\
+    } while(0)
+
+#define RANGE_CHECK(p,memb,lo,hi) do {\
+        if(!(((p)->memb == lo || (p)->memb > (lo)) && (p)->memb <= hi)) \
+            ERROR(#memb " out of range ["#lo".."#hi"]");\
+    } while(0)
+
+#define RANGE_CHECK_HI(p,memb,hi) do {\
+        if(!((p)->memb <= (hi))) \
+            ERROR(#memb " out of range [.."#hi"]");\
+    } while(0)
+
+#define RANGE_CHECK_LO(p,memb,lo) do {\
+        if(!((p)->memb >= (lo))) \
+            ERROR(#memb " out of range ["#lo"..]");\
+    } while(0)
+
+#define RANGE_CHECK_BOOL(p,memb) do {\
+        if(!!((p)->memb) != (p)->memb) ERROR(#memb " expected boolean");\
+    } while(0)
+
+static vpx_codec_err_t validate_config(vpx_codec_alg_priv_t      *ctx,
+                                       const vpx_codec_enc_cfg_t *cfg,
+                                       const struct vp8_extracfg *vp8_cfg,
+                                       int                        finalize)
+{
+    RANGE_CHECK(cfg, g_w,                   1, 16383); /* 14 bits available */
+    RANGE_CHECK(cfg, g_h,                   1, 16383); /* 14 bits available */
+    RANGE_CHECK(cfg, g_timebase.den,        1, 1000000000);
+    RANGE_CHECK(cfg, g_timebase.num,        1, 1000000000);
+    RANGE_CHECK_HI(cfg, g_profile,          3);
+    RANGE_CHECK_HI(cfg, rc_max_quantizer,   63);
+    RANGE_CHECK_HI(cfg, rc_min_quantizer,   cfg->rc_max_quantizer);
+    RANGE_CHECK_HI(cfg, g_threads,          64);
+#if CONFIG_REALTIME_ONLY
+    RANGE_CHECK_HI(cfg, g_lag_in_frames,    0);
+#elif CONFIG_MULTI_RES_ENCODING
+    if (ctx->base.enc.total_encoders > 1)
+        RANGE_CHECK_HI(cfg, g_lag_in_frames,    0);
+#else
+    RANGE_CHECK_HI(cfg, g_lag_in_frames,    25);
+#endif
+    RANGE_CHECK(cfg, rc_end_usage,          VPX_VBR, VPX_Q);
+    RANGE_CHECK_HI(cfg, rc_undershoot_pct,  1000);
+    RANGE_CHECK_HI(cfg, rc_overshoot_pct,   1000);
+    RANGE_CHECK_HI(cfg, rc_2pass_vbr_bias_pct, 100);
+    RANGE_CHECK(cfg, kf_mode,               VPX_KF_DISABLED, VPX_KF_AUTO);
+
+/* TODO: add spatial re-sampling support and frame dropping in
+ * multi-res-encoder.*/
+#if CONFIG_MULTI_RES_ENCODING
+    if (ctx->base.enc.total_encoders > 1)
+        RANGE_CHECK_HI(cfg, rc_resize_allowed,     0);
+#else
+    RANGE_CHECK_BOOL(cfg, rc_resize_allowed);
+#endif
+    RANGE_CHECK_HI(cfg, rc_dropframe_thresh,   100);
+    RANGE_CHECK_HI(cfg, rc_resize_up_thresh,   100);
+    RANGE_CHECK_HI(cfg, rc_resize_down_thresh, 100);
+
+#if CONFIG_REALTIME_ONLY
+    RANGE_CHECK(cfg,        g_pass,         VPX_RC_ONE_PASS, VPX_RC_ONE_PASS);
+#elif CONFIG_MULTI_RES_ENCODING
+    if (ctx->base.enc.total_encoders > 1)
+        RANGE_CHECK(cfg,    g_pass,         VPX_RC_ONE_PASS, VPX_RC_ONE_PASS);
+#else
+    RANGE_CHECK(cfg,        g_pass,         VPX_RC_ONE_PASS, VPX_RC_LAST_PASS);
+#endif
+
+    /* VP8 does not support a lower bound on the keyframe interval in
+     * automatic keyframe placement mode.
+     */
+    if (cfg->kf_mode != VPX_KF_DISABLED && cfg->kf_min_dist != cfg->kf_max_dist
+        && cfg->kf_min_dist > 0)
+        ERROR("kf_min_dist not supported in auto mode, use 0 "
+              "or kf_max_dist instead.");
+
+    RANGE_CHECK_BOOL(vp8_cfg,               enable_auto_alt_ref);
+    RANGE_CHECK(vp8_cfg, cpu_used,           -16, 16);
+
+#if CONFIG_REALTIME_ONLY && !CONFIG_TEMPORAL_DENOISING
+    RANGE_CHECK(vp8_cfg, noise_sensitivity,  0, 0);
+#else
+    RANGE_CHECK_HI(vp8_cfg, noise_sensitivity,  6);
+#endif
+
+    RANGE_CHECK(vp8_cfg, token_partitions,   VP8_ONE_TOKENPARTITION,
+                VP8_EIGHT_TOKENPARTITION);
+    RANGE_CHECK_HI(vp8_cfg, Sharpness,       7);
+    RANGE_CHECK(vp8_cfg, arnr_max_frames, 0, 15);
+    RANGE_CHECK_HI(vp8_cfg, arnr_strength,   6);
+    RANGE_CHECK(vp8_cfg, arnr_type,       1, 3);
+    RANGE_CHECK(vp8_cfg, cq_level, 0, 63);
+    RANGE_CHECK_HI(vp8_cfg, screen_content_mode, 2);
+    if (finalize && (cfg->rc_end_usage == VPX_CQ || cfg->rc_end_usage == VPX_Q))
+        RANGE_CHECK(vp8_cfg, cq_level,
+                    cfg->rc_min_quantizer, cfg->rc_max_quantizer);
+
+#if !(CONFIG_REALTIME_ONLY)
+    if (cfg->g_pass == VPX_RC_LAST_PASS)
+    {
+        size_t           packet_sz = sizeof(FIRSTPASS_STATS);
+        int              n_packets = (int)(cfg->rc_twopass_stats_in.sz /
+                                          packet_sz);
+        FIRSTPASS_STATS *stats;
+
+        if (!cfg->rc_twopass_stats_in.buf)
+            ERROR("rc_twopass_stats_in.buf not set.");
+
+        if (cfg->rc_twopass_stats_in.sz % packet_sz)
+            ERROR("rc_twopass_stats_in.sz indicates truncated packet.");
+
+        if (cfg->rc_twopass_stats_in.sz < 2 * packet_sz)
+            ERROR("rc_twopass_stats_in requires at least two packets.");
+
+        stats = (void*)((char *)cfg->rc_twopass_stats_in.buf
+                + (n_packets - 1) * packet_sz);
+
+        if ((int)(stats->count + 0.5) != n_packets - 1)
+            ERROR("rc_twopass_stats_in missing EOS stats packet");
+    }
+#endif
+
+    RANGE_CHECK(cfg, ts_number_layers, 1, 5);
+
+    if (cfg->ts_number_layers > 1)
+    {
+        unsigned int i;
+        RANGE_CHECK_HI(cfg, ts_periodicity, 16);
+
+        for (i=1; i<cfg->ts_number_layers; i++)
+            if (cfg->ts_target_bitrate[i] <= cfg->ts_target_bitrate[i-1] && 
+                cfg->rc_target_bitrate > 0)
+                ERROR("ts_target_bitrate entries are not strictly increasing");
+
+        RANGE_CHECK(cfg, ts_rate_decimator[cfg->ts_number_layers-1], 1, 1);
+        for (i=cfg->ts_number_layers-2; i>0; i--)
+            if (cfg->ts_rate_decimator[i-1] != 2*cfg->ts_rate_decimator[i])
+                ERROR("ts_rate_decimator factors are not powers of 2");
+
+        RANGE_CHECK_HI(cfg, ts_layer_id[i], cfg->ts_number_layers-1);
+    }
+
+#if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
+    if(cfg->g_threads > (1 << vp8_cfg->token_partitions))
+        ERROR("g_threads cannot be bigger than number of token partitions");
+#endif
+
+    return VPX_CODEC_OK;
+}
+
+
+static vpx_codec_err_t validate_img(vpx_codec_alg_priv_t *ctx,
+                                    const vpx_image_t    *img)
+{
+    switch (img->fmt)
+    {
+    case VPX_IMG_FMT_YV12:
+    case VPX_IMG_FMT_I420:
+    case VPX_IMG_FMT_VPXI420:
+    case VPX_IMG_FMT_VPXYV12:
+        break;
+    default:
+        ERROR("Invalid image format. Only YV12 and I420 images are supported");
+    }
+
+    if ((img->d_w != ctx->cfg.g_w) || (img->d_h != ctx->cfg.g_h))
+        ERROR("Image size must match encoder init configuration size");
+
+    return VPX_CODEC_OK;
+}
+
+
+static vpx_codec_err_t set_vp8e_config(VP8_CONFIG *oxcf,
+                                       vpx_codec_enc_cfg_t cfg,
+                                       struct vp8_extracfg vp8_cfg,
+                                       vpx_codec_priv_enc_mr_cfg_t *mr_cfg)
+{
+    oxcf->multi_threaded         = cfg.g_threads;
+    oxcf->Version               = cfg.g_profile;
+
+    oxcf->Width                 = cfg.g_w;
+    oxcf->Height                = cfg.g_h;
+    oxcf->timebase              = cfg.g_timebase;
+
+    oxcf->error_resilient_mode = cfg.g_error_resilient;
+
+    switch (cfg.g_pass)
+    {
+    case VPX_RC_ONE_PASS:
+        oxcf->Mode = MODE_BESTQUALITY;
+        break;
+    case VPX_RC_FIRST_PASS:
+        oxcf->Mode = MODE_FIRSTPASS;
+        break;
+    case VPX_RC_LAST_PASS:
+        oxcf->Mode = MODE_SECONDPASS_BEST;
+        break;
+    }
+
+    if (cfg.g_pass == VPX_RC_FIRST_PASS || cfg.g_pass == VPX_RC_ONE_PASS)
+    {
+        oxcf->allow_lag     = 0;
+        oxcf->lag_in_frames = 0;
+    }
+    else
+    {
+        oxcf->allow_lag     = (cfg.g_lag_in_frames) > 0;
+        oxcf->lag_in_frames = cfg.g_lag_in_frames;
+    }
+
+    oxcf->allow_df               = (cfg.rc_dropframe_thresh > 0);
+    oxcf->drop_frames_water_mark   = cfg.rc_dropframe_thresh;
+
+    oxcf->allow_spatial_resampling = cfg.rc_resize_allowed;
+    oxcf->resample_up_water_mark   = cfg.rc_resize_up_thresh;
+    oxcf->resample_down_water_mark = cfg.rc_resize_down_thresh;
+
+    if (cfg.rc_end_usage == VPX_VBR) {
+      oxcf->end_usage = USAGE_LOCAL_FILE_PLAYBACK;
+    } else if (cfg.rc_end_usage == VPX_CBR) {
+      oxcf->end_usage = USAGE_STREAM_FROM_SERVER;
+    } else if (cfg.rc_end_usage == VPX_CQ) {
+      oxcf->end_usage = USAGE_CONSTRAINED_QUALITY;
+    } else if (cfg.rc_end_usage == VPX_Q) {
+      oxcf->end_usage = USAGE_CONSTANT_QUALITY;
+    }
+
+    oxcf->target_bandwidth         = cfg.rc_target_bitrate;
+    oxcf->rc_max_intra_bitrate_pct = vp8_cfg.rc_max_intra_bitrate_pct;
+
+    oxcf->best_allowed_q           = cfg.rc_min_quantizer;
+    oxcf->worst_allowed_q          = cfg.rc_max_quantizer;
+    oxcf->cq_level                 = vp8_cfg.cq_level;
+    oxcf->fixed_q = -1;
+
+    oxcf->under_shoot_pct          = cfg.rc_undershoot_pct;
+    oxcf->over_shoot_pct           = cfg.rc_overshoot_pct;
+
+    oxcf->maximum_buffer_size_in_ms   = cfg.rc_buf_sz;
+    oxcf->starting_buffer_level_in_ms = cfg.rc_buf_initial_sz;
+    oxcf->optimal_buffer_level_in_ms  = cfg.rc_buf_optimal_sz;
+
+    oxcf->maximum_buffer_size      = cfg.rc_buf_sz;
+    oxcf->starting_buffer_level    = cfg.rc_buf_initial_sz;
+    oxcf->optimal_buffer_level     = cfg.rc_buf_optimal_sz;
+
+    oxcf->two_pass_vbrbias         = cfg.rc_2pass_vbr_bias_pct;
+    oxcf->two_pass_vbrmin_section  = cfg.rc_2pass_vbr_minsection_pct;
+    oxcf->two_pass_vbrmax_section  = cfg.rc_2pass_vbr_maxsection_pct;
+
+    oxcf->auto_key                 = cfg.kf_mode == VPX_KF_AUTO
+                                       && cfg.kf_min_dist != cfg.kf_max_dist;
+    oxcf->key_freq                 = cfg.kf_max_dist;
+
+    oxcf->number_of_layers         = cfg.ts_number_layers;
+    oxcf->periodicity              = cfg.ts_periodicity;
+
+    if (oxcf->number_of_layers > 1)
+    {
+        memcpy (oxcf->target_bitrate, cfg.ts_target_bitrate,
+                sizeof(cfg.ts_target_bitrate));
+        memcpy (oxcf->rate_decimator, cfg.ts_rate_decimator,
+                sizeof(cfg.ts_rate_decimator));
+        memcpy (oxcf->layer_id, cfg.ts_layer_id, sizeof(cfg.ts_layer_id));
+    }
+
+#if CONFIG_MULTI_RES_ENCODING
+    /* When mr_cfg is NULL, oxcf->mr_total_resolutions and oxcf->mr_encoder_id
+     * are both memset to 0, which ensures the correct logic under this
+     * situation.
+     */
+    if(mr_cfg)
+    {
+        oxcf->mr_total_resolutions        = mr_cfg->mr_total_resolutions;
+        oxcf->mr_encoder_id               = mr_cfg->mr_encoder_id;
+        oxcf->mr_down_sampling_factor.num = mr_cfg->mr_down_sampling_factor.num;
+        oxcf->mr_down_sampling_factor.den = mr_cfg->mr_down_sampling_factor.den;
+        oxcf->mr_low_res_mode_info        = mr_cfg->mr_low_res_mode_info;
+    }
+#else
+    (void)mr_cfg;
+#endif
+
+    oxcf->cpu_used               = vp8_cfg.cpu_used;
+    oxcf->encode_breakout        = vp8_cfg.static_thresh;
+    oxcf->play_alternate         = vp8_cfg.enable_auto_alt_ref;
+    oxcf->noise_sensitivity      = vp8_cfg.noise_sensitivity;
+    oxcf->Sharpness              = vp8_cfg.Sharpness;
+    oxcf->token_partitions       = vp8_cfg.token_partitions;
+
+    oxcf->two_pass_stats_in      = cfg.rc_twopass_stats_in;
+    oxcf->output_pkt_list        = vp8_cfg.pkt_list;
+
+    oxcf->arnr_max_frames        = vp8_cfg.arnr_max_frames;
+    oxcf->arnr_strength          = vp8_cfg.arnr_strength;
+    oxcf->arnr_type              = vp8_cfg.arnr_type;
+
+    oxcf->tuning                 = vp8_cfg.tuning;
+
+    oxcf->screen_content_mode    = vp8_cfg.screen_content_mode;
+
+    /*
+        printf("Current VP8 Settings: \n");
+        printf("target_bandwidth: %d\n", oxcf->target_bandwidth);
+        printf("noise_sensitivity: %d\n", oxcf->noise_sensitivity);
+        printf("Sharpness: %d\n",    oxcf->Sharpness);
+        printf("cpu_used: %d\n",  oxcf->cpu_used);
+        printf("Mode: %d\n",     oxcf->Mode);
+        printf("auto_key: %d\n",  oxcf->auto_key);
+        printf("key_freq: %d\n", oxcf->key_freq);
+        printf("end_usage: %d\n", oxcf->end_usage);
+        printf("under_shoot_pct: %d\n", oxcf->under_shoot_pct);
+        printf("over_shoot_pct: %d\n", oxcf->over_shoot_pct);
+        printf("starting_buffer_level: %d\n", oxcf->starting_buffer_level);
+        printf("optimal_buffer_level: %d\n",  oxcf->optimal_buffer_level);
+        printf("maximum_buffer_size: %d\n", oxcf->maximum_buffer_size);
+        printf("fixed_q: %d\n",  oxcf->fixed_q);
+        printf("worst_allowed_q: %d\n", oxcf->worst_allowed_q);
+        printf("best_allowed_q: %d\n", oxcf->best_allowed_q);
+        printf("allow_spatial_resampling: %d\n",  oxcf->allow_spatial_resampling);
+        printf("resample_down_water_mark: %d\n", oxcf->resample_down_water_mark);
+        printf("resample_up_water_mark: %d\n", oxcf->resample_up_water_mark);
+        printf("allow_df: %d\n", oxcf->allow_df);
+        printf("drop_frames_water_mark: %d\n", oxcf->drop_frames_water_mark);
+        printf("two_pass_vbrbias: %d\n",  oxcf->two_pass_vbrbias);
+        printf("two_pass_vbrmin_section: %d\n", oxcf->two_pass_vbrmin_section);
+        printf("two_pass_vbrmax_section: %d\n", oxcf->two_pass_vbrmax_section);
+        printf("allow_lag: %d\n", oxcf->allow_lag);
+        printf("lag_in_frames: %d\n", oxcf->lag_in_frames);
+        printf("play_alternate: %d\n", oxcf->play_alternate);
+        printf("Version: %d\n", oxcf->Version);
+        printf("multi_threaded: %d\n",   oxcf->multi_threaded);
+        printf("encode_breakout: %d\n", oxcf->encode_breakout);
+    */
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t vp8e_set_config(vpx_codec_alg_priv_t       *ctx,
+                                       const vpx_codec_enc_cfg_t  *cfg)
+{
+    vpx_codec_err_t res;
+
+    if (cfg->g_w != ctx->cfg.g_w || cfg->g_h != ctx->cfg.g_h)
+    {
+        if (cfg->g_lag_in_frames > 1 || cfg->g_pass != VPX_RC_ONE_PASS)
+            ERROR("Cannot change width or height after initialization");
+        if ((ctx->cpi->initial_width && (int)cfg->g_w > ctx->cpi->initial_width) ||
+            (ctx->cpi->initial_height && (int)cfg->g_h > ctx->cpi->initial_height))
+            ERROR("Cannot increast width or height larger than their initial values");
+    }
+
+    /* Prevent increasing lag_in_frames. This check is stricter than it needs
+     * to be -- the limit is not increasing past the first lag_in_frames
+     * value, but we don't track the initial config, only the last successful
+     * config.
+     */
+    if ((cfg->g_lag_in_frames > ctx->cfg.g_lag_in_frames))
+        ERROR("Cannot increase lag_in_frames");
+
+    res = validate_config(ctx, cfg, &ctx->vp8_cfg, 0);
+
+    if (!res)
+    {
+        ctx->cfg = *cfg;
+        set_vp8e_config(&ctx->oxcf, ctx->cfg, ctx->vp8_cfg, NULL);
+        vp8_change_config(ctx->cpi, &ctx->oxcf);
+    }
+
+    return res;
+}
+
+static vpx_codec_err_t get_quantizer(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  int *const arg = va_arg(args, int *);
+  if (arg == NULL)
+    return VPX_CODEC_INVALID_PARAM;
+  *arg = vp8_get_quantizer(ctx->cpi);
+  return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t get_quantizer64(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  int *const arg = va_arg(args, int *);
+  if (arg == NULL)
+    return VPX_CODEC_INVALID_PARAM;
+  *arg = vp8_reverse_trans(vp8_get_quantizer(ctx->cpi));
+  return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t update_extracfg(vpx_codec_alg_priv_t *ctx,
+                                       const struct vp8_extracfg *extra_cfg)
+{
+  const vpx_codec_err_t res = validate_config(ctx, &ctx->cfg, extra_cfg, 0);
+  if (res == VPX_CODEC_OK) {
+    ctx->vp8_cfg = *extra_cfg;
+    set_vp8e_config(&ctx->oxcf, ctx->cfg, ctx->vp8_cfg, NULL);
+    vp8_change_config(ctx->cpi, &ctx->oxcf);
+  }
+  return res;
+}
+
+static vpx_codec_err_t set_cpu_used(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.cpu_used = CAST(VP8E_SET_CPUUSED, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_enable_auto_alt_ref(vpx_codec_alg_priv_t *ctx,
+                                               va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.enable_auto_alt_ref = CAST(VP8E_SET_ENABLEAUTOALTREF, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_noise_sensitivity(vpx_codec_alg_priv_t *ctx,
+                                             va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.noise_sensitivity = CAST(VP8E_SET_NOISE_SENSITIVITY, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_sharpness(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.Sharpness = CAST(VP8E_SET_SHARPNESS, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_static_thresh(vpx_codec_alg_priv_t *ctx,
+                                         va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.static_thresh = CAST(VP8E_SET_STATIC_THRESHOLD, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_token_partitions(vpx_codec_alg_priv_t *ctx,
+                                            va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.token_partitions = CAST(VP8E_SET_TOKEN_PARTITIONS, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_arnr_max_frames(vpx_codec_alg_priv_t *ctx,
+                                           va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.arnr_max_frames = CAST(VP8E_SET_ARNR_MAXFRAMES, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_arnr_strength(vpx_codec_alg_priv_t *ctx,
+                                         va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.arnr_strength = CAST(VP8E_SET_ARNR_STRENGTH, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_arnr_type(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.arnr_type = CAST(VP8E_SET_ARNR_TYPE, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_tuning(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.tuning = CAST(VP8E_SET_TUNING, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_cq_level(vpx_codec_alg_priv_t *ctx, va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.cq_level = CAST(VP8E_SET_CQ_LEVEL, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_rc_max_intra_bitrate_pct(vpx_codec_alg_priv_t *ctx,
+                                                    va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.rc_max_intra_bitrate_pct =
+      CAST(VP8E_SET_MAX_INTRA_BITRATE_PCT, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t set_screen_content_mode(vpx_codec_alg_priv_t *ctx,
+                                               va_list args)
+{
+  struct vp8_extracfg extra_cfg = ctx->vp8_cfg;
+  extra_cfg.screen_content_mode =
+      CAST(VP8E_SET_SCREEN_CONTENT_MODE, args);
+  return update_extracfg(ctx, &extra_cfg);
+}
+
+static vpx_codec_err_t vp8e_mr_alloc_mem(const vpx_codec_enc_cfg_t *cfg,
+                                        void **mem_loc)
+{
+    vpx_codec_err_t res = 0;
+
+#if CONFIG_MULTI_RES_ENCODING
+    LOWER_RES_FRAME_INFO *shared_mem_loc;
+    int mb_rows = ((cfg->g_w + 15) >>4);
+    int mb_cols = ((cfg->g_h + 15) >>4);
+
+    shared_mem_loc = calloc(1, sizeof(LOWER_RES_FRAME_INFO));
+    if(!shared_mem_loc)
+    {
+        res = VPX_CODEC_MEM_ERROR;
+    }
+
+    shared_mem_loc->mb_info = calloc(mb_rows*mb_cols, sizeof(LOWER_RES_MB_INFO));
+    if(!(shared_mem_loc->mb_info))
+    {
+        res = VPX_CODEC_MEM_ERROR;
+    }
+    else
+    {
+        *mem_loc = (void *)shared_mem_loc;
+        res = VPX_CODEC_OK;
+    }
+#else
+    (void)cfg;
+    (void)mem_loc;
+#endif
+    return res;
+}
+
+static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx,
+                                 vpx_codec_priv_enc_mr_cfg_t *mr_cfg)
+{
+    vpx_codec_err_t        res = VPX_CODEC_OK;
+
+
+    vp8_rtcd();
+    vpx_dsp_rtcd();
+    vpx_scale_rtcd();
+
+    if (!ctx->priv)
+    {
+        struct vpx_codec_alg_priv *priv =
+            (struct vpx_codec_alg_priv *)vpx_calloc(1, sizeof(*priv));
+
+        if (!priv)
+        {
+            return VPX_CODEC_MEM_ERROR;
+        }
+
+        ctx->priv = (vpx_codec_priv_t *)priv;
+        ctx->priv->init_flags = ctx->init_flags;
+
+        if (ctx->config.enc)
+        {
+            /* Update the reference to the config structure to an
+             * internal copy.
+             */
+            priv->cfg = *ctx->config.enc;
+            ctx->config.enc = &priv->cfg;
+        }
+
+        priv->vp8_cfg = default_extracfg;
+        priv->vp8_cfg.pkt_list = &priv->pkt_list.head;
+
+        priv->cx_data_sz = priv->cfg.g_w * priv->cfg.g_h * 3 / 2 * 2;
+
+        if (priv->cx_data_sz < 32768) priv->cx_data_sz = 32768;
+
+        priv->cx_data = malloc(priv->cx_data_sz);
+
+        if (!priv->cx_data)
+        {
+            return VPX_CODEC_MEM_ERROR;
+        }
+
+        if(mr_cfg)
+            ctx->priv->enc.total_encoders   = mr_cfg->mr_total_resolutions;
+        else
+            ctx->priv->enc.total_encoders   = 1;
+
+        res = validate_config(priv, &priv->cfg, &priv->vp8_cfg, 0);
+
+        if (!res)
+        {
+            set_vp8e_config(&priv->oxcf, priv->cfg, priv->vp8_cfg, mr_cfg);
+            priv->cpi = vp8_create_compressor(&priv->oxcf);
+            if (!priv->cpi)
+                res = VPX_CODEC_MEM_ERROR;
+        }
+    }
+
+    return res;
+}
+
+static vpx_codec_err_t vp8e_destroy(vpx_codec_alg_priv_t *ctx)
+{
+#if CONFIG_MULTI_RES_ENCODING
+    /* Free multi-encoder shared memory */
+    if (ctx->oxcf.mr_total_resolutions > 0 && (ctx->oxcf.mr_encoder_id == ctx->oxcf.mr_total_resolutions-1))
+    {
+        LOWER_RES_FRAME_INFO *shared_mem_loc = (LOWER_RES_FRAME_INFO *)ctx->oxcf.mr_low_res_mode_info;
+        free(shared_mem_loc->mb_info);
+        free(ctx->oxcf.mr_low_res_mode_info);
+    }
+#endif
+
+    free(ctx->cx_data);
+    vp8_remove_compressor(&ctx->cpi);
+    vpx_free(ctx);
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t image2yuvconfig(const vpx_image_t   *img,
+                                       YV12_BUFFER_CONFIG  *yv12)
+{
+    const int y_w = img->d_w;
+    const int y_h = img->d_h;
+    const int uv_w = (img->d_w + 1) / 2;
+    const int uv_h = (img->d_h + 1) / 2;
+    vpx_codec_err_t        res = VPX_CODEC_OK;
+    yv12->y_buffer = img->planes[VPX_PLANE_Y];
+    yv12->u_buffer = img->planes[VPX_PLANE_U];
+    yv12->v_buffer = img->planes[VPX_PLANE_V];
+
+    yv12->y_crop_width  = y_w;
+    yv12->y_crop_height = y_h;
+    yv12->y_width  = y_w;
+    yv12->y_height = y_h;
+    yv12->uv_crop_width = uv_w;
+    yv12->uv_crop_height = uv_h;
+    yv12->uv_width = uv_w;
+    yv12->uv_height = uv_h;
+
+    yv12->y_stride = img->stride[VPX_PLANE_Y];
+    yv12->uv_stride = img->stride[VPX_PLANE_U];
+
+    yv12->border  = (img->stride[VPX_PLANE_Y] - img->w) / 2;
+    return res;
+}
+
+static void pick_quickcompress_mode(vpx_codec_alg_priv_t  *ctx,
+                                    unsigned long          duration,
+                                    unsigned long          deadline)
+{
+    unsigned int new_qc;
+
+#if !(CONFIG_REALTIME_ONLY)
+    /* Use best quality mode if no deadline is given. */
+    new_qc = MODE_BESTQUALITY;
+
+    if (deadline)
+    {
+        uint64_t     duration_us;
+
+        /* Convert duration parameter from stream timebase to microseconds */
+        duration_us = (uint64_t)duration * 1000000
+                      * (uint64_t)ctx->cfg.g_timebase.num
+                      / (uint64_t)ctx->cfg.g_timebase.den;
+
+        /* If the deadline is more that the duration this frame is to be shown,
+         * use good quality mode. Otherwise use realtime mode.
+         */
+        new_qc = (deadline > duration_us) ? MODE_GOODQUALITY : MODE_REALTIME;
+    }
+
+#else
+    new_qc = MODE_REALTIME;
+#endif
+
+    if (ctx->cfg.g_pass == VPX_RC_FIRST_PASS)
+        new_qc = MODE_FIRSTPASS;
+    else if (ctx->cfg.g_pass == VPX_RC_LAST_PASS)
+        new_qc = (new_qc == MODE_BESTQUALITY)
+                 ? MODE_SECONDPASS_BEST
+                 : MODE_SECONDPASS;
+
+    if (ctx->oxcf.Mode != new_qc)
+    {
+        ctx->oxcf.Mode = new_qc;
+        vp8_change_config(ctx->cpi, &ctx->oxcf);
+    }
+}
+
+static vpx_codec_err_t set_reference_and_update(vpx_codec_alg_priv_t *ctx,
+                                                int flags)
+{
+
+    /* Handle Flags */
+    if (((flags & VP8_EFLAG_NO_UPD_GF) && (flags & VP8_EFLAG_FORCE_GF))
+        || ((flags & VP8_EFLAG_NO_UPD_ARF) && (flags & VP8_EFLAG_FORCE_ARF)))
+    {
+        ctx->base.err_detail = "Conflicting flags.";
+        return VPX_CODEC_INVALID_PARAM;
+    }
+
+    if (flags & (VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF
+                 | VP8_EFLAG_NO_REF_ARF))
+    {
+        int ref = 7;
+
+        if (flags & VP8_EFLAG_NO_REF_LAST)
+            ref ^= VP8_LAST_FRAME;
+
+        if (flags & VP8_EFLAG_NO_REF_GF)
+            ref ^= VP8_GOLD_FRAME;
+
+        if (flags & VP8_EFLAG_NO_REF_ARF)
+            ref ^= VP8_ALTR_FRAME;
+
+        vp8_use_as_reference(ctx->cpi, ref);
+    }
+
+    if (flags & (VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF
+                 | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_FORCE_GF
+                 | VP8_EFLAG_FORCE_ARF))
+    {
+        int upd = 7;
+
+        if (flags & VP8_EFLAG_NO_UPD_LAST)
+            upd ^= VP8_LAST_FRAME;
+
+        if (flags & VP8_EFLAG_NO_UPD_GF)
+            upd ^= VP8_GOLD_FRAME;
+
+        if (flags & VP8_EFLAG_NO_UPD_ARF)
+            upd ^= VP8_ALTR_FRAME;
+
+        vp8_update_reference(ctx->cpi, upd);
+    }
+
+    if (flags & VP8_EFLAG_NO_UPD_ENTROPY)
+    {
+        vp8_update_entropy(ctx->cpi, 0);
+    }
+
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t vp8e_encode(vpx_codec_alg_priv_t  *ctx,
+                                   const vpx_image_t     *img,
+                                   vpx_codec_pts_t        pts,
+                                   unsigned long          duration,
+                                   vpx_enc_frame_flags_t  flags,
+                                   unsigned long          deadline)
+{
+    vpx_codec_err_t res = VPX_CODEC_OK;
+
+    if (!ctx->cfg.rc_target_bitrate)
+        return res;
+
+    if (img)
+        res = validate_img(ctx, img);
+
+    if (!res)
+        res = validate_config(ctx, &ctx->cfg, &ctx->vp8_cfg, 1);
+
+    pick_quickcompress_mode(ctx, duration, deadline);
+    vpx_codec_pkt_list_init(&ctx->pkt_list);
+
+    // If no flags are set in the encode call, then use the frame flags as
+    // defined via the control function: vp8e_set_frame_flags.
+    if (!flags) {
+        flags = ctx->control_frame_flags;
+    }
+    ctx->control_frame_flags = 0;
+
+    res = set_reference_and_update(ctx, flags);
+
+    /* Handle fixed keyframe intervals */
+    if (ctx->cfg.kf_mode == VPX_KF_AUTO
+        && ctx->cfg.kf_min_dist == ctx->cfg.kf_max_dist)
+    {
+        if (++ctx->fixed_kf_cntr > ctx->cfg.kf_min_dist)
+        {
+            flags |= VPX_EFLAG_FORCE_KF;
+            ctx->fixed_kf_cntr = 1;
+        }
+    }
+
+    /* Initialize the encoder instance on the first frame*/
+    if (!res && ctx->cpi)
+    {
+        unsigned int lib_flags;
+        YV12_BUFFER_CONFIG sd;
+        int64_t dst_time_stamp, dst_end_time_stamp;
+        unsigned long size, cx_data_sz;
+        unsigned char *cx_data;
+        unsigned char *cx_data_end;
+        int comp_data_state = 0;
+
+        /* Set up internal flags */
+        if (ctx->base.init_flags & VPX_CODEC_USE_PSNR)
+            ((VP8_COMP *)ctx->cpi)->b_calculate_psnr = 1;
+
+        if (ctx->base.init_flags & VPX_CODEC_USE_OUTPUT_PARTITION)
+            ((VP8_COMP *)ctx->cpi)->output_partition = 1;
+
+        /* Convert API flags to internal codec lib flags */
+        lib_flags = (flags & VPX_EFLAG_FORCE_KF) ? FRAMEFLAGS_KEY : 0;
+
+        /* vp8 use 10,000,000 ticks/second as time stamp */
+        dst_time_stamp    = pts * 10000000 * ctx->cfg.g_timebase.num / ctx->cfg.g_timebase.den;
+        dst_end_time_stamp = (pts + duration) * 10000000 * ctx->cfg.g_timebase.num / ctx->cfg.g_timebase.den;
+
+        if (img != NULL)
+        {
+            res = image2yuvconfig(img, &sd);
+
+            if (sd.y_width != ctx->cfg.g_w || sd.y_height != ctx->cfg.g_h) {
+                /* from vpx_encoder.h for g_w/g_h:
+                   "Note that the frames passed as input to the encoder must have this resolution"
+                */
+                ctx->base.err_detail = "Invalid input frame resolution";
+                res = VPX_CODEC_INVALID_PARAM;
+            } else {
+                if (vp8_receive_raw_frame(ctx->cpi, ctx->next_frame_flag | lib_flags,
+                                          &sd, dst_time_stamp, dst_end_time_stamp))
+                {
+                    VP8_COMP *cpi = (VP8_COMP *)ctx->cpi;
+                    res = update_error_state(ctx, &cpi->common.error);
+                }
+            }
+
+            /* reset for next frame */
+            ctx->next_frame_flag = 0;
+        }
+
+        cx_data = ctx->cx_data;
+        cx_data_sz = ctx->cx_data_sz;
+        cx_data_end = ctx->cx_data + cx_data_sz;
+        lib_flags = 0;
+
+        while (cx_data_sz >= ctx->cx_data_sz / 2)
+        {
+            comp_data_state = vp8_get_compressed_data(ctx->cpi,
+                                                  &lib_flags,
+                                                  &size,
+                                                  cx_data,
+                                                  cx_data_end,
+                                                  &dst_time_stamp,
+                                                  &dst_end_time_stamp,
+                                                  !img);
+
+            if(comp_data_state == VPX_CODEC_CORRUPT_FRAME)
+                return VPX_CODEC_CORRUPT_FRAME;
+            else if(comp_data_state == -1)
+                break;
+
+            if (size)
+            {
+                vpx_codec_pts_t    round, delta;
+                vpx_codec_cx_pkt_t pkt;
+                VP8_COMP *cpi = (VP8_COMP *)ctx->cpi;
+
+                /* Add the frame packet to the list of returned packets. */
+                round = (vpx_codec_pts_t)10000000
+                        * ctx->cfg.g_timebase.num / 2 - 1;
+                delta = (dst_end_time_stamp - dst_time_stamp);
+                pkt.kind = VPX_CODEC_CX_FRAME_PKT;
+                pkt.data.frame.pts =
+                    (dst_time_stamp * ctx->cfg.g_timebase.den + round)
+                    / ctx->cfg.g_timebase.num / 10000000;
+                pkt.data.frame.duration = (unsigned long)
+                    ((delta * ctx->cfg.g_timebase.den + round)
+                    / ctx->cfg.g_timebase.num / 10000000);
+                pkt.data.frame.flags = lib_flags << 16;
+
+                if (lib_flags & FRAMEFLAGS_KEY)
+                    pkt.data.frame.flags |= VPX_FRAME_IS_KEY;
+
+                if (!cpi->common.show_frame)
+                {
+                    pkt.data.frame.flags |= VPX_FRAME_IS_INVISIBLE;
+
+                    /* This timestamp should be as close as possible to the
+                     * prior PTS so that if a decoder uses pts to schedule when
+                     * to do this, we start right after last frame was decoded.
+                     * Invisible frames have no duration.
+                     */
+                    pkt.data.frame.pts = ((cpi->last_time_stamp_seen
+                        * ctx->cfg.g_timebase.den + round)
+                        / ctx->cfg.g_timebase.num / 10000000) + 1;
+                    pkt.data.frame.duration = 0;
+                }
+
+                if (cpi->droppable)
+                    pkt.data.frame.flags |= VPX_FRAME_IS_DROPPABLE;
+
+                if (cpi->output_partition)
+                {
+                    int i;
+                    const int num_partitions =
+                            (1 << cpi->common.multi_token_partition) + 1;
+
+                    pkt.data.frame.flags |= VPX_FRAME_IS_FRAGMENT;
+
+                    for (i = 0; i < num_partitions; ++i)
+                    {
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                        pkt.data.frame.buf = cpi->partition_d[i];
+#else
+                        pkt.data.frame.buf = cx_data;
+                        cx_data += cpi->partition_sz[i];
+                        cx_data_sz -= cpi->partition_sz[i];
+#endif
+                        pkt.data.frame.sz = cpi->partition_sz[i];
+                        pkt.data.frame.partition_id = i;
+                        /* don't set the fragment bit for the last partition */
+                        if (i == (num_partitions - 1))
+                            pkt.data.frame.flags &= ~VPX_FRAME_IS_FRAGMENT;
+                        vpx_codec_pkt_list_add(&ctx->pkt_list.head, &pkt);
+                    }
+#if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
+                    /* In lagged mode the encoder can buffer multiple frames.
+                     * We don't want this in partitioned output because
+                     * partitions are spread all over the output buffer.
+                     * So, force an exit!
+                     */
+                    cx_data_sz -= ctx->cx_data_sz / 2;
+#endif
+                }
+                else
+                {
+                    pkt.data.frame.buf = cx_data;
+                    pkt.data.frame.sz  = size;
+                    pkt.data.frame.partition_id = -1;
+                    vpx_codec_pkt_list_add(&ctx->pkt_list.head, &pkt);
+                    cx_data += size;
+                    cx_data_sz -= size;
+                }
+            }
+        }
+    }
+
+    return res;
+}
+
+
+static const vpx_codec_cx_pkt_t *vp8e_get_cxdata(vpx_codec_alg_priv_t  *ctx,
+        vpx_codec_iter_t      *iter)
+{
+    return vpx_codec_pkt_list_get(&ctx->pkt_list.head, iter);
+}
+
+static vpx_codec_err_t vp8e_set_reference(vpx_codec_alg_priv_t *ctx,
+                                          va_list args)
+{
+    vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
+
+    if (data)
+    {
+        vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
+        YV12_BUFFER_CONFIG sd;
+
+        image2yuvconfig(&frame->img, &sd);
+        vp8_set_reference(ctx->cpi, frame->frame_type, &sd);
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+
+}
+
+static vpx_codec_err_t vp8e_get_reference(vpx_codec_alg_priv_t *ctx,
+                                          va_list args)
+{
+
+    vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
+
+    if (data)
+    {
+        vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
+        YV12_BUFFER_CONFIG sd;
+
+        image2yuvconfig(&frame->img, &sd);
+        vp8_get_reference(ctx->cpi, frame->frame_type, &sd);
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+}
+
+static vpx_codec_err_t vp8e_set_previewpp(vpx_codec_alg_priv_t *ctx,
+                                          va_list args)
+{
+#if CONFIG_POSTPROC
+    vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
+
+    if (data)
+    {
+        ctx->preview_ppcfg = *((vp8_postproc_cfg_t *)data);
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+#else
+    (void)ctx;
+    (void)args;
+    return VPX_CODEC_INCAPABLE;
+#endif
+}
+
+
+static vpx_image_t *vp8e_get_preview(vpx_codec_alg_priv_t *ctx)
+{
+
+    YV12_BUFFER_CONFIG sd;
+    vp8_ppflags_t flags = {0};
+
+    if (ctx->preview_ppcfg.post_proc_flag)
+    {
+        flags.post_proc_flag        = ctx->preview_ppcfg.post_proc_flag;
+        flags.deblocking_level      = ctx->preview_ppcfg.deblocking_level;
+        flags.noise_level           = ctx->preview_ppcfg.noise_level;
+    }
+
+    if (0 == vp8_get_preview_raw_frame(ctx->cpi, &sd, &flags))
+    {
+
+        /*
+        vpx_img_wrap(&ctx->preview_img, VPX_IMG_FMT_YV12,
+            sd.y_width + 2*VP8BORDERINPIXELS,
+            sd.y_height + 2*VP8BORDERINPIXELS,
+            1,
+            sd.buffer_alloc);
+        vpx_img_set_rect(&ctx->preview_img,
+            VP8BORDERINPIXELS, VP8BORDERINPIXELS,
+            sd.y_width, sd.y_height);
+            */
+
+        ctx->preview_img.bps = 12;
+        ctx->preview_img.planes[VPX_PLANE_Y] = sd.y_buffer;
+        ctx->preview_img.planes[VPX_PLANE_U] = sd.u_buffer;
+        ctx->preview_img.planes[VPX_PLANE_V] = sd.v_buffer;
+
+        ctx->preview_img.fmt = VPX_IMG_FMT_I420;
+        ctx->preview_img.x_chroma_shift = 1;
+        ctx->preview_img.y_chroma_shift = 1;
+
+        ctx->preview_img.d_w = sd.y_width;
+        ctx->preview_img.d_h = sd.y_height;
+        ctx->preview_img.stride[VPX_PLANE_Y] = sd.y_stride;
+        ctx->preview_img.stride[VPX_PLANE_U] = sd.uv_stride;
+        ctx->preview_img.stride[VPX_PLANE_V] = sd.uv_stride;
+        ctx->preview_img.w   = sd.y_width;
+        ctx->preview_img.h   = sd.y_height;
+
+        return &ctx->preview_img;
+    }
+    else
+        return NULL;
+}
+
+static vpx_codec_err_t vp8e_update_entropy(vpx_codec_alg_priv_t *ctx,
+                                           va_list args)
+{
+    int update = va_arg(args, int);
+    vp8_update_entropy(ctx->cpi, update);
+    return VPX_CODEC_OK;
+
+}
+
+static vpx_codec_err_t vp8e_update_reference(vpx_codec_alg_priv_t *ctx,
+                                             va_list args)
+{
+    int update = va_arg(args, int);
+    vp8_update_reference(ctx->cpi, update);
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t vp8e_use_reference(vpx_codec_alg_priv_t *ctx,
+                                          va_list args)
+{
+    int reference_flag = va_arg(args, int);
+    vp8_use_as_reference(ctx->cpi, reference_flag);
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t vp8e_set_frame_flags(vpx_codec_alg_priv_t *ctx,
+                                            va_list args)
+{
+    int frame_flags = va_arg(args, int);
+    ctx->control_frame_flags = frame_flags;
+    return set_reference_and_update(ctx, frame_flags);
+}
+
+static vpx_codec_err_t vp8e_set_temporal_layer_id(vpx_codec_alg_priv_t *ctx,
+                                                  va_list args)
+{
+    int layer_id = va_arg(args, int);
+    if (layer_id < 0 || layer_id >= (int)ctx->cfg.ts_number_layers) {
+      return VPX_CODEC_INVALID_PARAM;
+    }
+    ctx->cpi->temporal_layer_id = layer_id;
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t vp8e_set_roi_map(vpx_codec_alg_priv_t *ctx,
+                                        va_list args)
+{
+    vpx_roi_map_t *data = va_arg(args, vpx_roi_map_t *);
+
+    if (data)
+    {
+        vpx_roi_map_t *roi = (vpx_roi_map_t *)data;
+
+        if (!vp8_set_roimap(ctx->cpi, roi->roi_map, roi->rows, roi->cols, roi->delta_q, roi->delta_lf, roi->static_threshold))
+            return VPX_CODEC_OK;
+        else
+            return VPX_CODEC_INVALID_PARAM;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+}
+
+
+static vpx_codec_err_t vp8e_set_activemap(vpx_codec_alg_priv_t *ctx,
+                                          va_list args)
+{
+    vpx_active_map_t *data = va_arg(args, vpx_active_map_t *);
+
+    if (data)
+    {
+
+        vpx_active_map_t *map = (vpx_active_map_t *)data;
+
+        if (!vp8_set_active_map(ctx->cpi, map->active_map, map->rows, map->cols))
+            return VPX_CODEC_OK;
+        else
+            return VPX_CODEC_INVALID_PARAM;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+}
+
+static vpx_codec_err_t vp8e_set_scalemode(vpx_codec_alg_priv_t *ctx,
+                                          va_list args)
+{
+
+    vpx_scaling_mode_t *data =  va_arg(args, vpx_scaling_mode_t *);
+
+    if (data)
+    {
+        int res;
+        vpx_scaling_mode_t scalemode = *(vpx_scaling_mode_t *)data ;
+        res = vp8_set_internal_size(ctx->cpi,
+                                    (VPX_SCALING)scalemode.h_scaling_mode,
+                                    (VPX_SCALING)scalemode.v_scaling_mode);
+
+        if (!res)
+        {
+            /*force next frame a key frame to effect scaling mode */
+            ctx->next_frame_flag |= FRAMEFLAGS_KEY;
+            return VPX_CODEC_OK;
+        }
+        else
+            return VPX_CODEC_INVALID_PARAM;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+}
+
+
+static vpx_codec_ctrl_fn_map_t vp8e_ctf_maps[] =
+{
+    {VP8_SET_REFERENCE,                 vp8e_set_reference},
+    {VP8_COPY_REFERENCE,                vp8e_get_reference},
+    {VP8_SET_POSTPROC,                  vp8e_set_previewpp},
+    {VP8E_UPD_ENTROPY,                  vp8e_update_entropy},
+    {VP8E_UPD_REFERENCE,                vp8e_update_reference},
+    {VP8E_USE_REFERENCE,                vp8e_use_reference},
+    {VP8E_SET_FRAME_FLAGS,              vp8e_set_frame_flags},
+    {VP8E_SET_TEMPORAL_LAYER_ID,        vp8e_set_temporal_layer_id},
+    {VP8E_SET_ROI_MAP,                  vp8e_set_roi_map},
+    {VP8E_SET_ACTIVEMAP,                vp8e_set_activemap},
+    {VP8E_SET_SCALEMODE,                vp8e_set_scalemode},
+    {VP8E_SET_CPUUSED,                  set_cpu_used},
+    {VP8E_SET_NOISE_SENSITIVITY,        set_noise_sensitivity},
+    {VP8E_SET_ENABLEAUTOALTREF,         set_enable_auto_alt_ref},
+    {VP8E_SET_SHARPNESS,                set_sharpness},
+    {VP8E_SET_STATIC_THRESHOLD,         set_static_thresh},
+    {VP8E_SET_TOKEN_PARTITIONS,         set_token_partitions},
+    {VP8E_GET_LAST_QUANTIZER,           get_quantizer},
+    {VP8E_GET_LAST_QUANTIZER_64,        get_quantizer64},
+    {VP8E_SET_ARNR_MAXFRAMES,           set_arnr_max_frames},
+    {VP8E_SET_ARNR_STRENGTH ,           set_arnr_strength},
+    {VP8E_SET_ARNR_TYPE     ,           set_arnr_type},
+    {VP8E_SET_TUNING,                   set_tuning},
+    {VP8E_SET_CQ_LEVEL,                 set_cq_level},
+    {VP8E_SET_MAX_INTRA_BITRATE_PCT,    set_rc_max_intra_bitrate_pct},
+    {VP8E_SET_SCREEN_CONTENT_MODE,      set_screen_content_mode},
+    { -1, NULL},
+};
+
+static vpx_codec_enc_cfg_map_t vp8e_usage_cfg_map[] =
+{
+    {
+    0,
+    {
+        0,                  /* g_usage */
+        0,                  /* g_threads */
+        0,                  /* g_profile */
+
+        320,                /* g_width */
+        240,                /* g_height */
+        VPX_BITS_8,         /* g_bit_depth */
+        8,                  /* g_input_bit_depth */
+
+        {1, 30},            /* g_timebase */
+
+        0,                  /* g_error_resilient */
+
+        VPX_RC_ONE_PASS,    /* g_pass */
+
+        0,                  /* g_lag_in_frames */
+
+        0,                  /* rc_dropframe_thresh */
+        0,                  /* rc_resize_allowed */
+        1,                  /* rc_scaled_width */
+        1,                  /* rc_scaled_height */
+        60,                 /* rc_resize_down_thresold */
+        30,                 /* rc_resize_up_thresold */
+
+        VPX_VBR,            /* rc_end_usage */
+        {0},                /* rc_twopass_stats_in */
+        {0},                /* rc_firstpass_mb_stats_in */
+        256,                /* rc_target_bandwidth */
+        4,                  /* rc_min_quantizer */
+        63,                 /* rc_max_quantizer */
+        100,                /* rc_undershoot_pct */
+        100,                /* rc_overshoot_pct */
+
+        6000,               /* rc_max_buffer_size */
+        4000,               /* rc_buffer_initial_size; */
+        5000,               /* rc_buffer_optimal_size; */
+
+        50,                 /* rc_two_pass_vbrbias  */
+        0,                  /* rc_two_pass_vbrmin_section */
+        400,                /* rc_two_pass_vbrmax_section */
+
+        /* keyframing settings (kf) */
+        VPX_KF_AUTO,        /* g_kfmode*/
+        0,                  /* kf_min_dist */
+        128,                /* kf_max_dist */
+
+        VPX_SS_DEFAULT_LAYERS, /* ss_number_layers */
+        {0},
+        {0},                /* ss_target_bitrate */
+        1,                  /* ts_number_layers */
+        {0},                /* ts_target_bitrate */
+        {0},                /* ts_rate_decimator */
+        0,                  /* ts_periodicity */
+        {0},                /* ts_layer_id */
+    }},
+};
+
+
+#ifndef VERSION_STRING
+#define VERSION_STRING
+#endif
+CODEC_INTERFACE(vpx_codec_vp8_cx) =
+{
+    "WebM Project VP8 Encoder" VERSION_STRING,
+    VPX_CODEC_INTERNAL_ABI_VERSION,
+    VPX_CODEC_CAP_ENCODER | VPX_CODEC_CAP_PSNR |
+    VPX_CODEC_CAP_OUTPUT_PARTITION,
+    /* vpx_codec_caps_t          caps; */
+    vp8e_init,          /* vpx_codec_init_fn_t       init; */
+    vp8e_destroy,       /* vpx_codec_destroy_fn_t    destroy; */
+    vp8e_ctf_maps,      /* vpx_codec_ctrl_fn_map_t  *ctrl_maps; */
+    {
+        NULL,    /* vpx_codec_peek_si_fn_t    peek_si; */
+        NULL,    /* vpx_codec_get_si_fn_t     get_si; */
+        NULL,    /* vpx_codec_decode_fn_t     decode; */
+        NULL,    /* vpx_codec_frame_get_fn_t  frame_get; */
+        NULL,    /* vpx_codec_set_fb_fn_t     set_fb_fn; */
+    },
+    {
+        1,                  /* 1 cfg map */
+        vp8e_usage_cfg_map, /* vpx_codec_enc_cfg_map_t    cfg_maps; */
+        vp8e_encode,        /* vpx_codec_encode_fn_t      encode; */
+        vp8e_get_cxdata,    /* vpx_codec_get_cx_data_fn_t   get_cx_data; */
+        vp8e_set_config,
+        NULL,
+        vp8e_get_preview,
+        vp8e_mr_alloc_mem,
+    } /* encoder functions */
+};
diff --git a/media/libvpx/vp8/vp8_dx_iface.c b/media/libvpx/vp8/vp8_dx_iface.c
new file mode 100644
index 000000000..72e4770c0
--- /dev/null
+++ b/media/libvpx/vp8/vp8_dx_iface.c
@@ -0,0 +1,833 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#include <stdlib.h>
+#include <string.h>
+#include "./vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "./vpx_scale_rtcd.h"
+#include "vpx/vpx_decoder.h"
+#include "vpx/vp8dx.h"
+#include "vpx/internal/vpx_codec_internal.h"
+#include "vpx_version.h"
+#include "common/alloccommon.h"
+#include "common/common.h"
+#include "common/onyxd.h"
+#include "decoder/onyxd_int.h"
+#include "vpx_mem/vpx_mem.h"
+#if CONFIG_ERROR_CONCEALMENT
+#include "decoder/error_concealment.h"
+#endif
+#include "decoder/decoderthreading.h"
+
+#define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
+#define VP8_CAP_ERROR_CONCEALMENT (CONFIG_ERROR_CONCEALMENT ? \
+                                    VPX_CODEC_CAP_ERROR_CONCEALMENT : 0)
+
+typedef vpx_codec_stream_info_t  vp8_stream_info_t;
+
+/* Structures for handling memory allocations */
+typedef enum
+{
+    VP8_SEG_ALG_PRIV     = 256,
+    VP8_SEG_MAX
+} mem_seg_id_t;
+#define NELEMENTS(x) ((int)(sizeof(x)/sizeof(x[0])))
+
+static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t);
+
+struct vpx_codec_alg_priv
+{
+    vpx_codec_priv_t        base;
+    vpx_codec_dec_cfg_t     cfg;
+    vp8_stream_info_t       si;
+    int                     decoder_init;
+    int                     postproc_cfg_set;
+    vp8_postproc_cfg_t      postproc_cfg;
+#if CONFIG_POSTPROC_VISUALIZER
+    unsigned int            dbg_postproc_flag;
+    int                     dbg_color_ref_frame_flag;
+    int                     dbg_color_mb_modes_flag;
+    int                     dbg_color_b_modes_flag;
+    int                     dbg_display_mv_flag;
+#endif
+    vpx_decrypt_cb          decrypt_cb;
+    void                    *decrypt_state;
+    vpx_image_t             img;
+    int                     img_setup;
+    struct frame_buffers    yv12_frame_buffers;
+    void                    *user_priv;
+    FRAGMENT_DATA           fragments;
+};
+
+static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t flags)
+{
+    /* Although this declaration is constant, we can't use it in the requested
+     * segments list because we want to define the requested segments list
+     * before defining the private type (so that the number of memory maps is
+     * known)
+     */
+    (void)si;
+    (void)flags;
+    return sizeof(vpx_codec_alg_priv_t);
+}
+
+static void vp8_init_ctx(vpx_codec_ctx_t *ctx)
+{
+    vpx_codec_alg_priv_t *priv =
+        (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv));
+
+    ctx->priv = (vpx_codec_priv_t *)priv;
+    ctx->priv->init_flags = ctx->init_flags;
+
+    priv->si.sz = sizeof(priv->si);
+    priv->decrypt_cb = NULL;
+    priv->decrypt_state = NULL;
+
+    if (ctx->config.dec)
+    {
+        /* Update the reference to the config structure to an internal copy. */
+        priv->cfg = *ctx->config.dec;
+        ctx->config.dec = &priv->cfg;
+    }
+}
+
+static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
+                                vpx_codec_priv_enc_mr_cfg_t *data)
+{
+    vpx_codec_err_t res = VPX_CODEC_OK;
+    vpx_codec_alg_priv_t *priv = NULL;
+    (void) data;
+
+    vp8_rtcd();
+    vpx_dsp_rtcd();
+    vpx_scale_rtcd();
+
+    /* This function only allocates space for the vpx_codec_alg_priv_t
+     * structure. More memory may be required at the time the stream
+     * information becomes known.
+     */
+    if (!ctx->priv) {
+      vp8_init_ctx(ctx);
+      priv = (vpx_codec_alg_priv_t *)ctx->priv;
+
+      /* initialize number of fragments to zero */
+      priv->fragments.count = 0;
+      /* is input fragments enabled? */
+      priv->fragments.enabled =
+          (priv->base.init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS);
+
+      /*post processing level initialized to do nothing */
+    } else {
+      priv = (vpx_codec_alg_priv_t *)ctx->priv;
+    }
+
+    priv->yv12_frame_buffers.use_frame_threads =
+        (ctx->priv->init_flags & VPX_CODEC_USE_FRAME_THREADING);
+
+    /* for now, disable frame threading */
+    priv->yv12_frame_buffers.use_frame_threads = 0;
+
+    if (priv->yv12_frame_buffers.use_frame_threads &&
+        ((ctx->priv->init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT) ||
+         (ctx->priv->init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS))) {
+      /* row-based threading, error concealment, and input fragments will
+       * not be supported when using frame-based threading */
+      res = VPX_CODEC_INVALID_PARAM;
+    }
+
+    return res;
+}
+
+static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx)
+{
+    vp8_remove_decoder_instances(&ctx->yv12_frame_buffers);
+
+    vpx_free(ctx);
+
+    return VPX_CODEC_OK;
+}
+
+static vpx_codec_err_t vp8_peek_si_internal(const uint8_t *data,
+                                            unsigned int data_sz,
+                                            vpx_codec_stream_info_t *si,
+                                            vpx_decrypt_cb decrypt_cb,
+                                            void *decrypt_state)
+{
+    vpx_codec_err_t res = VPX_CODEC_OK;
+
+    if(data + data_sz <= data)
+    {
+        res = VPX_CODEC_INVALID_PARAM;
+    }
+    else
+    {
+        /* Parse uncompresssed part of key frame header.
+         * 3 bytes:- including version, frame type and an offset
+         * 3 bytes:- sync code (0x9d, 0x01, 0x2a)
+         * 4 bytes:- including image width and height in the lowest 14 bits
+         *           of each 2-byte value.
+         */
+        uint8_t clear_buffer[10];
+        const uint8_t *clear = data;
+        if (decrypt_cb)
+        {
+            int n = MIN(sizeof(clear_buffer), data_sz);
+            decrypt_cb(decrypt_state, data, clear_buffer, n);
+            clear = clear_buffer;
+        }
+        si->is_kf = 0;
+
+        if (data_sz >= 10 && !(clear[0] & 0x01))  /* I-Frame */
+        {
+            si->is_kf = 1;
+
+            /* vet via sync code */
+            if (clear[3] != 0x9d || clear[4] != 0x01 || clear[5] != 0x2a)
+                return VPX_CODEC_UNSUP_BITSTREAM;
+
+            si->w = (clear[6] | (clear[7] << 8)) & 0x3fff;
+            si->h = (clear[8] | (clear[9] << 8)) & 0x3fff;
+
+            /*printf("w=%d, h=%d\n", si->w, si->h);*/
+            if (!(si->h | si->w))
+                res = VPX_CODEC_UNSUP_BITSTREAM;
+        }
+        else
+        {
+            res = VPX_CODEC_UNSUP_BITSTREAM;
+        }
+    }
+
+    return res;
+}
+
+static vpx_codec_err_t vp8_peek_si(const uint8_t *data,
+                                   unsigned int data_sz,
+                                   vpx_codec_stream_info_t *si) {
+    return vp8_peek_si_internal(data, data_sz, si, NULL, NULL);
+}
+
+static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t    *ctx,
+                                  vpx_codec_stream_info_t *si)
+{
+
+    unsigned int sz;
+
+    if (si->sz >= sizeof(vp8_stream_info_t))
+        sz = sizeof(vp8_stream_info_t);
+    else
+        sz = sizeof(vpx_codec_stream_info_t);
+
+    memcpy(si, &ctx->si, sz);
+    si->sz = sz;
+
+    return VPX_CODEC_OK;
+}
+
+
+static vpx_codec_err_t
+update_error_state(vpx_codec_alg_priv_t                 *ctx,
+                   const struct vpx_internal_error_info *error)
+{
+    vpx_codec_err_t res;
+
+    if ((res = error->error_code))
+        ctx->base.err_detail = error->has_detail
+                               ? error->detail
+                               : NULL;
+
+    return res;
+}
+
+static void yuvconfig2image(vpx_image_t               *img,
+                            const YV12_BUFFER_CONFIG  *yv12,
+                            void                      *user_priv)
+{
+    /** vpx_img_wrap() doesn't allow specifying independent strides for
+      * the Y, U, and V planes, nor other alignment adjustments that
+      * might be representable by a YV12_BUFFER_CONFIG, so we just
+      * initialize all the fields.*/
+    img->fmt = VPX_IMG_FMT_I420;
+    img->w = yv12->y_stride;
+    img->h = (yv12->y_height + 2 * VP8BORDERINPIXELS + 15) & ~15;
+    img->d_w = yv12->y_width;
+    img->d_h = yv12->y_height;
+    img->x_chroma_shift = 1;
+    img->y_chroma_shift = 1;
+    img->planes[VPX_PLANE_Y] = yv12->y_buffer;
+    img->planes[VPX_PLANE_U] = yv12->u_buffer;
+    img->planes[VPX_PLANE_V] = yv12->v_buffer;
+    img->planes[VPX_PLANE_ALPHA] = NULL;
+    img->stride[VPX_PLANE_Y] = yv12->y_stride;
+    img->stride[VPX_PLANE_U] = yv12->uv_stride;
+    img->stride[VPX_PLANE_V] = yv12->uv_stride;
+    img->stride[VPX_PLANE_ALPHA] = yv12->y_stride;
+    img->bit_depth = 8;
+    img->bps = 12;
+    img->user_priv = user_priv;
+    img->img_data = yv12->buffer_alloc;
+    img->img_data_owner = 0;
+    img->self_allocd = 0;
+}
+
+static int
+update_fragments(vpx_codec_alg_priv_t  *ctx,
+                 const uint8_t         *data,
+                 unsigned int           data_sz,
+                 vpx_codec_err_t       *res)
+{
+    *res = VPX_CODEC_OK;
+
+    if (ctx->fragments.count == 0)
+    {
+        /* New frame, reset fragment pointers and sizes */
+        memset((void*)ctx->fragments.ptrs, 0, sizeof(ctx->fragments.ptrs));
+        memset(ctx->fragments.sizes, 0, sizeof(ctx->fragments.sizes));
+    }
+    if (ctx->fragments.enabled && !(data == NULL && data_sz == 0))
+    {
+        /* Store a pointer to this fragment and return. We haven't
+         * received the complete frame yet, so we will wait with decoding.
+         */
+        ctx->fragments.ptrs[ctx->fragments.count] = data;
+        ctx->fragments.sizes[ctx->fragments.count] = data_sz;
+        ctx->fragments.count++;
+        if (ctx->fragments.count > (1 << EIGHT_PARTITION) + 1)
+        {
+            ctx->fragments.count = 0;
+            *res = VPX_CODEC_INVALID_PARAM;
+            return -1;
+        }
+        return 0;
+    }
+
+    if (!ctx->fragments.enabled && (data == NULL && data_sz == 0))
+    {
+        return 0;
+    }
+
+    if (!ctx->fragments.enabled)
+    {
+        ctx->fragments.ptrs[0] = data;
+        ctx->fragments.sizes[0] = data_sz;
+        ctx->fragments.count = 1;
+    }
+
+    return 1;
+}
+
+static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t  *ctx,
+                                  const uint8_t         *data,
+                                  unsigned int            data_sz,
+                                  void                    *user_priv,
+                                  long                    deadline)
+{
+    vpx_codec_err_t res = VPX_CODEC_OK;
+    unsigned int resolution_change = 0;
+    unsigned int w, h;
+
+    if (!ctx->fragments.enabled && (data == NULL && data_sz == 0))
+    {
+        return 0;
+    }
+
+    /* Update the input fragment data */
+    if(update_fragments(ctx, data, data_sz, &res) <= 0)
+        return res;
+
+    /* Determine the stream parameters. Note that we rely on peek_si to
+     * validate that we have a buffer that does not wrap around the top
+     * of the heap.
+     */
+    w = ctx->si.w;
+    h = ctx->si.h;
+
+    res = vp8_peek_si_internal(ctx->fragments.ptrs[0], ctx->fragments.sizes[0],
+                               &ctx->si, ctx->decrypt_cb, ctx->decrypt_state);
+
+    if((res == VPX_CODEC_UNSUP_BITSTREAM) && !ctx->si.is_kf)
+    {
+        /* the peek function returns an error for non keyframes, however for
+         * this case, it is not an error */
+        res = VPX_CODEC_OK;
+    }
+
+    if(!ctx->decoder_init && !ctx->si.is_kf)
+        res = VPX_CODEC_UNSUP_BITSTREAM;
+
+    if ((ctx->si.h != h) || (ctx->si.w != w))
+        resolution_change = 1;
+
+    /* Initialize the decoder instance on the first frame*/
+    if (!res && !ctx->decoder_init)
+    {
+      VP8D_CONFIG oxcf;
+
+      oxcf.Width = ctx->si.w;
+      oxcf.Height = ctx->si.h;
+      oxcf.Version = 9;
+      oxcf.postprocess = 0;
+      oxcf.max_threads = ctx->cfg.threads;
+      oxcf.error_concealment =
+          (ctx->base.init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT);
+
+      /* If postprocessing was enabled by the application and a
+       * configuration has not been provided, default it.
+       */
+       if (!ctx->postproc_cfg_set
+           && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) {
+         ctx->postproc_cfg.post_proc_flag =
+             VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE;
+         ctx->postproc_cfg.deblocking_level = 4;
+         ctx->postproc_cfg.noise_level = 0;
+       }
+
+       res = vp8_create_decoder_instances(&ctx->yv12_frame_buffers, &oxcf);
+       ctx->decoder_init = 1;
+    }
+
+    /* Set these even if already initialized.  The caller may have changed the
+     * decrypt config between frames.
+     */
+    if (ctx->decoder_init) {
+      ctx->yv12_frame_buffers.pbi[0]->decrypt_cb = ctx->decrypt_cb;
+      ctx->yv12_frame_buffers.pbi[0]->decrypt_state = ctx->decrypt_state;
+    }
+
+    if (!res)
+    {
+        VP8D_COMP *pbi = ctx->yv12_frame_buffers.pbi[0];
+        if (resolution_change)
+        {
+            VP8_COMMON *const pc = & pbi->common;
+            MACROBLOCKD *const xd  = & pbi->mb;
+#if CONFIG_MULTITHREAD
+            int i;
+#endif
+            pc->Width = ctx->si.w;
+            pc->Height = ctx->si.h;
+            {
+                int prev_mb_rows = pc->mb_rows;
+
+                if (setjmp(pbi->common.error.jmp))
+                {
+                    pbi->common.error.setjmp = 0;
+                    vp8_clear_system_state();
+                    /* same return value as used in vp8dx_receive_compressed_data */
+                    return -1;
+                }
+
+                pbi->common.error.setjmp = 1;
+
+                if (pc->Width <= 0)
+                {
+                    pc->Width = w;
+                    vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
+                                       "Invalid frame width");
+                }
+
+                if (pc->Height <= 0)
+                {
+                    pc->Height = h;
+                    vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
+                                       "Invalid frame height");
+                }
+
+                if (vp8_alloc_frame_buffers(pc, pc->Width, pc->Height))
+                    vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
+                                       "Failed to allocate frame buffers");
+
+                xd->pre = pc->yv12_fb[pc->lst_fb_idx];
+                xd->dst = pc->yv12_fb[pc->new_fb_idx];
+
+#if CONFIG_MULTITHREAD
+                for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
+                {
+                    pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx];
+                    vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd);
+                }
+#endif
+                vp8_build_block_doffsets(&pbi->mb);
+
+                /* allocate memory for last frame MODE_INFO array */
+#if CONFIG_ERROR_CONCEALMENT
+
+                if (pbi->ec_enabled)
+                {
+                    /* old prev_mip was released by vp8_de_alloc_frame_buffers()
+                     * called in vp8_alloc_frame_buffers() */
+                    pc->prev_mip = vpx_calloc(
+                                       (pc->mb_cols + 1) * (pc->mb_rows + 1),
+                                       sizeof(MODE_INFO));
+
+                    if (!pc->prev_mip)
+                    {
+                        vp8_de_alloc_frame_buffers(pc);
+                        vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
+                                           "Failed to allocate"
+                                           "last frame MODE_INFO array");
+                    }
+
+                    pc->prev_mi = pc->prev_mip + pc->mode_info_stride + 1;
+
+                    if (vp8_alloc_overlap_lists(pbi))
+                        vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
+                                           "Failed to allocate overlap lists "
+                                           "for error concealment");
+                }
+
+#endif
+
+#if CONFIG_MULTITHREAD
+                if (pbi->b_multithreaded_rd)
+                    vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows);
+#else
+                (void)prev_mb_rows;
+#endif
+            }
+
+            pbi->common.error.setjmp = 0;
+
+            /* required to get past the first get_free_fb() call */
+            pbi->common.fb_idx_ref_cnt[0] = 0;
+        }
+
+        /* update the pbi fragment data */
+        pbi->fragments = ctx->fragments;
+
+        ctx->user_priv = user_priv;
+        if (vp8dx_receive_compressed_data(pbi, data_sz, data, deadline))
+        {
+            res = update_error_state(ctx, &pbi->common.error);
+        }
+
+        /* get ready for the next series of fragments */
+        ctx->fragments.count = 0;
+    }
+
+    return res;
+}
+
+static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t  *ctx,
+                                  vpx_codec_iter_t      *iter)
+{
+    vpx_image_t *img = NULL;
+
+    /* iter acts as a flip flop, so an image is only returned on the first
+     * call to get_frame.
+     */
+    if (!(*iter) && ctx->yv12_frame_buffers.pbi[0])
+    {
+        YV12_BUFFER_CONFIG sd;
+        int64_t time_stamp = 0, time_end_stamp = 0;
+        vp8_ppflags_t flags = {0};
+
+        if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
+        {
+            flags.post_proc_flag= ctx->postproc_cfg.post_proc_flag
+#if CONFIG_POSTPROC_VISUALIZER
+
+                                | ((ctx->dbg_color_ref_frame_flag != 0) ? VP8D_DEBUG_CLR_FRM_REF_BLKS : 0)
+                                | ((ctx->dbg_color_mb_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0)
+                                | ((ctx->dbg_color_b_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0)
+                                | ((ctx->dbg_display_mv_flag != 0) ? VP8D_DEBUG_DRAW_MV : 0)
+#endif
+                                ;
+            flags.deblocking_level      = ctx->postproc_cfg.deblocking_level;
+            flags.noise_level           = ctx->postproc_cfg.noise_level;
+#if CONFIG_POSTPROC_VISUALIZER
+            flags.display_ref_frame_flag= ctx->dbg_color_ref_frame_flag;
+            flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag;
+            flags.display_b_modes_flag  = ctx->dbg_color_b_modes_flag;
+            flags.display_mv_flag       = ctx->dbg_display_mv_flag;
+#endif
+        }
+
+        if (0 == vp8dx_get_raw_frame(ctx->yv12_frame_buffers.pbi[0], &sd,
+                                     &time_stamp, &time_end_stamp, &flags))
+        {
+            yuvconfig2image(&ctx->img, &sd, ctx->user_priv);
+
+            img = &ctx->img;
+            *iter = img;
+        }
+    }
+
+    return img;
+}
+
+static vpx_codec_err_t image2yuvconfig(const vpx_image_t   *img,
+                                       YV12_BUFFER_CONFIG  *yv12)
+{
+    const int y_w = img->d_w;
+    const int y_h = img->d_h;
+    const int uv_w = (img->d_w + 1) / 2;
+    const int uv_h = (img->d_h + 1) / 2;
+    vpx_codec_err_t        res = VPX_CODEC_OK;
+    yv12->y_buffer = img->planes[VPX_PLANE_Y];
+    yv12->u_buffer = img->planes[VPX_PLANE_U];
+    yv12->v_buffer = img->planes[VPX_PLANE_V];
+
+    yv12->y_crop_width  = y_w;
+    yv12->y_crop_height = y_h;
+    yv12->y_width  = y_w;
+    yv12->y_height = y_h;
+    yv12->uv_crop_width = uv_w;
+    yv12->uv_crop_height = uv_h;
+    yv12->uv_width = uv_w;
+    yv12->uv_height = uv_h;
+
+    yv12->y_stride = img->stride[VPX_PLANE_Y];
+    yv12->uv_stride = img->stride[VPX_PLANE_U];
+
+    yv12->border  = (img->stride[VPX_PLANE_Y] - img->d_w) / 2;
+    return res;
+}
+
+
+static vpx_codec_err_t vp8_set_reference(vpx_codec_alg_priv_t *ctx,
+                                         va_list args)
+{
+
+    vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
+
+    if (data && !ctx->yv12_frame_buffers.use_frame_threads)
+    {
+        vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
+        YV12_BUFFER_CONFIG sd;
+
+        image2yuvconfig(&frame->img, &sd);
+
+        return vp8dx_set_reference(ctx->yv12_frame_buffers.pbi[0],
+                                   frame->frame_type, &sd);
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+
+}
+
+static vpx_codec_err_t vp8_get_reference(vpx_codec_alg_priv_t *ctx,
+                                         va_list args)
+{
+
+    vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
+
+    if (data && !ctx->yv12_frame_buffers.use_frame_threads)
+    {
+        vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
+        YV12_BUFFER_CONFIG sd;
+
+        image2yuvconfig(&frame->img, &sd);
+
+        return vp8dx_get_reference(ctx->yv12_frame_buffers.pbi[0],
+                                   frame->frame_type, &sd);
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+
+}
+
+static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
+                                        va_list args)
+{
+#if CONFIG_POSTPROC
+    vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
+
+    if (data)
+    {
+        ctx->postproc_cfg_set = 1;
+        ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+
+#else
+    (void)ctx;
+    (void)args;
+    return VPX_CODEC_INCAPABLE;
+#endif
+}
+
+
+static vpx_codec_err_t vp8_set_dbg_color_ref_frame(vpx_codec_alg_priv_t *ctx,
+                                                   va_list args) {
+#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
+  ctx->dbg_color_ref_frame_flag = va_arg(args, int);
+  return VPX_CODEC_OK;
+#else
+  (void)ctx;
+  (void)args;
+  return VPX_CODEC_INCAPABLE;
+#endif
+}
+
+static vpx_codec_err_t vp8_set_dbg_color_mb_modes(vpx_codec_alg_priv_t *ctx,
+                                                  va_list args) {
+#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
+  ctx->dbg_color_mb_modes_flag = va_arg(args, int);
+  return VPX_CODEC_OK;
+#else
+  (void)ctx;
+  (void)args;
+  return VPX_CODEC_INCAPABLE;
+#endif
+}
+
+static vpx_codec_err_t vp8_set_dbg_color_b_modes(vpx_codec_alg_priv_t *ctx,
+                                                 va_list args) {
+#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
+  ctx->dbg_color_b_modes_flag = va_arg(args, int);
+  return VPX_CODEC_OK;
+#else
+  (void)ctx;
+  (void)args;
+  return VPX_CODEC_INCAPABLE;
+#endif
+}
+
+static vpx_codec_err_t vp8_set_dbg_display_mv(vpx_codec_alg_priv_t *ctx,
+                                              va_list args) {
+#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
+  ctx->dbg_display_mv_flag = va_arg(args, int);
+  return VPX_CODEC_OK;
+#else
+  (void)ctx;
+  (void)args;
+  return VPX_CODEC_INCAPABLE;
+#endif
+}
+
+static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
+                                                va_list args)
+{
+    int *update_info = va_arg(args, int *);
+
+    if (update_info && !ctx->yv12_frame_buffers.use_frame_threads)
+    {
+        VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
+
+        *update_info = pbi->common.refresh_alt_ref_frame * (int) VP8_ALTR_FRAME
+            + pbi->common.refresh_golden_frame * (int) VP8_GOLD_FRAME
+            + pbi->common.refresh_last_frame * (int) VP8_LAST_FRAME;
+
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+}
+
+extern int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame );
+static vpx_codec_err_t vp8_get_last_ref_frame(vpx_codec_alg_priv_t *ctx,
+                                              va_list args)
+{
+    int *ref_info = va_arg(args, int *);
+
+    if (ref_info && !ctx->yv12_frame_buffers.use_frame_threads)
+    {
+        VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
+        VP8_COMMON *oci = &pbi->common;
+        *ref_info =
+            (vp8dx_references_buffer( oci, ALTREF_FRAME )?VP8_ALTR_FRAME:0) |
+            (vp8dx_references_buffer( oci, GOLDEN_FRAME )?VP8_GOLD_FRAME:0) |
+            (vp8dx_references_buffer( oci, LAST_FRAME )?VP8_LAST_FRAME:0);
+
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+}
+
+static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
+                                               va_list args)
+{
+
+    int *corrupted = va_arg(args, int *);
+    VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
+
+    if (corrupted && pbi)
+    {
+        const YV12_BUFFER_CONFIG *const frame = pbi->common.frame_to_show;
+        if (frame == NULL) return VPX_CODEC_ERROR;
+        *corrupted = frame->corrupted;
+        return VPX_CODEC_OK;
+    }
+    else
+        return VPX_CODEC_INVALID_PARAM;
+
+}
+
+static vpx_codec_err_t vp8_set_decryptor(vpx_codec_alg_priv_t *ctx,
+                                         va_list args)
+{
+    vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *);
+
+    if (init)
+    {
+        ctx->decrypt_cb = init->decrypt_cb;
+        ctx->decrypt_state = init->decrypt_state;
+    }
+    else
+    {
+        ctx->decrypt_cb = NULL;
+        ctx->decrypt_state = NULL;
+    }
+    return VPX_CODEC_OK;
+}
+
+vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] =
+{
+    {VP8_SET_REFERENCE,             vp8_set_reference},
+    {VP8_COPY_REFERENCE,            vp8_get_reference},
+    {VP8_SET_POSTPROC,              vp8_set_postproc},
+    {VP8_SET_DBG_COLOR_REF_FRAME,   vp8_set_dbg_color_ref_frame},
+    {VP8_SET_DBG_COLOR_MB_MODES,    vp8_set_dbg_color_mb_modes},
+    {VP8_SET_DBG_COLOR_B_MODES,     vp8_set_dbg_color_b_modes},
+    {VP8_SET_DBG_DISPLAY_MV,        vp8_set_dbg_display_mv},
+    {VP8D_GET_LAST_REF_UPDATES,     vp8_get_last_ref_updates},
+    {VP8D_GET_FRAME_CORRUPTED,      vp8_get_frame_corrupted},
+    {VP8D_GET_LAST_REF_USED,        vp8_get_last_ref_frame},
+    {VPXD_SET_DECRYPTOR,            vp8_set_decryptor},
+    { -1, NULL},
+};
+
+
+#ifndef VERSION_STRING
+#define VERSION_STRING
+#endif
+CODEC_INTERFACE(vpx_codec_vp8_dx) =
+{
+    "WebM Project VP8 Decoder" VERSION_STRING,
+    VPX_CODEC_INTERNAL_ABI_VERSION,
+    VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC | VP8_CAP_ERROR_CONCEALMENT |
+    VPX_CODEC_CAP_INPUT_FRAGMENTS,
+    /* vpx_codec_caps_t          caps; */
+    vp8_init,         /* vpx_codec_init_fn_t       init; */
+    vp8_destroy,      /* vpx_codec_destroy_fn_t    destroy; */
+    vp8_ctf_maps,     /* vpx_codec_ctrl_fn_map_t  *ctrl_maps; */
+    {
+        vp8_peek_si,      /* vpx_codec_peek_si_fn_t    peek_si; */
+        vp8_get_si,       /* vpx_codec_get_si_fn_t     get_si; */
+        vp8_decode,       /* vpx_codec_decode_fn_t     decode; */
+        vp8_get_frame,    /* vpx_codec_frame_get_fn_t  frame_get; */
+        NULL,
+    },
+    { /* encoder functions */
+        0,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL
+    }
+};