[ffvpx] Update ffvp9/ffvp8 to 3.4.2-release

Structure of code was slightly modified so that it should be no longer necessary to re-generate the config_*.h files, greatly simplifying the resync process in the future.

17 files changed, 632 insertions, 333 deletions

diff --git a/media/ffvpx/libavcodec/x86/constants.h b/media/ffvpx/libavcodec/x86/constants.h
index b82aef9a4..bbb0ef844 100644
--- a/media/ffvpx/libavcodec/x86/constants.h
+++ b/media/ffvpx/libavcodec/x86/constants.h
@@ -43,6 +43,7 @@ extern const xmm_reg  ff_pw_64;
 extern const uint64_t ff_pw_96;
 extern const uint64_t ff_pw_128;
 extern const ymm_reg  ff_pw_255;
+extern const ymm_reg  ff_pw_256;
 extern const ymm_reg  ff_pw_512;
 extern const ymm_reg  ff_pw_1023;
 extern const ymm_reg  ff_pw_1024;
diff --git a/media/ffvpx/libavcodec/x86/flacdsp_init.c b/media/ffvpx/libavcodec/x86/flacdsp_init.c
index e28c5c932..1971f81b8 100644
--- a/media/ffvpx/libavcodec/x86/flacdsp_init.c
+++ b/media/ffvpx/libavcodec/x86/flacdsp_init.c
@@ -53,7 +53,7 @@ DECORRELATE_FUNCS(32,  avx);
 av_cold void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels,
                                  int bps)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
 #if CONFIG_FLAC_DECODER
@@ -111,5 +111,5 @@ av_cold void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int
             c->lpc16_encode = ff_flac_enc_lpc_16_sse4;
     }
 #endif
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 }
diff --git a/media/ffvpx/libavcodec/x86/h264_i386.h b/media/ffvpx/libavcodec/x86/h264_i386.h
deleted file mode 100644
index 19cd12838..000000000
--- a/media/ffvpx/libavcodec/x86/h264_i386.h
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * H.264 / AVC / MPEG-4 part10 codec.
- * non-MMX i386-specific optimizations for H.264
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#ifndef AVCODEC_X86_H264_I386_H
-#define AVCODEC_X86_H264_I386_H
-
-#include <stddef.h>
-
-#include "libavcodec/cabac.h"
-#include "cabac.h"
-
-#if HAVE_INLINE_ASM
-
-#if ARCH_X86_64
-#define REG64 "r"
-#else
-#define REG64 "m"
-#endif
-
-//FIXME use some macros to avoid duplicating get_cabac (cannot be done yet
-//as that would make optimization work hard)
-#if HAVE_7REGS && !BROKEN_COMPILER
-#define decode_significance decode_significance_x86
-static int decode_significance_x86(CABACContext *c, int max_coeff,
-                                   uint8_t *significant_coeff_ctx_base,
-                                   int *index, x86_reg last_off){
-    void *end= significant_coeff_ctx_base + max_coeff - 1;
-    int minusstart= -(intptr_t)significant_coeff_ctx_base;
-    int minusindex= 4-(intptr_t)index;
-    int bit;
-    x86_reg coeff_count;
-
-#ifdef BROKEN_RELOCATIONS
-    void *tables;
-
-    __asm__ volatile(
-        "lea   "MANGLE(ff_h264_cabac_tables)", %0      \n\t"
-        : "=&r"(tables)
-        : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
-    );
-#endif
-
-    __asm__ volatile(
-        "3:                                     \n\t"
-
-        BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
-                             "%5", "%q5", "%k0", "%b0",
-                             "%c11(%6)", "%c12(%6)",
-                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
-                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
-                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
-                             "%13")
-
-        "test $1, %4                            \n\t"
-        " jz 4f                                 \n\t"
-        "add  %10, %1                           \n\t"
-
-        BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
-                             "%5", "%q5", "%k0", "%b0",
-                             "%c11(%6)", "%c12(%6)",
-                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
-                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
-                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
-                             "%13")
-
-        "sub  %10, %1                           \n\t"
-        "mov  %2, %0                            \n\t"
-        "movl %7, %%ecx                         \n\t"
-        "add  %1, %%"FF_REG_c"                  \n\t"
-        "movl %%ecx, (%0)                       \n\t"
-
-        "test $1, %4                            \n\t"
-        " jnz 5f                                \n\t"
-
-        "add"FF_OPSIZE"  $4, %2                 \n\t"
-
-        "4:                                     \n\t"
-        "add  $1, %1                            \n\t"
-        "cmp  %8, %1                            \n\t"
-        " jb 3b                                 \n\t"
-        "mov  %2, %0                            \n\t"
-        "movl %7, %%ecx                         \n\t"
-        "add  %1, %%"FF_REG_c"                  \n\t"
-        "movl %%ecx, (%0)                       \n\t"
-        "5:                                     \n\t"
-        "add  %9, %k0                           \n\t"
-        "shr $2, %k0                            \n\t"
-        : "=&q"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index),
-          "+&r"(c->low), "=&r"(bit), "+&r"(c->range)
-        : "r"(c), "m"(minusstart), "m"(end), "m"(minusindex), "m"(last_off),
-          "i"(offsetof(CABACContext, bytestream)),
-          "i"(offsetof(CABACContext, bytestream_end))
-          TABLES_ARG
-        : "%"FF_REG_c, "memory"
-    );
-    return coeff_count;
-}
-
-#define decode_significance_8x8 decode_significance_8x8_x86
-static int decode_significance_8x8_x86(CABACContext *c,
-                                       uint8_t *significant_coeff_ctx_base,
-                                       int *index, uint8_t *last_coeff_ctx_base, const uint8_t *sig_off){
-    int minusindex= 4-(intptr_t)index;
-    int bit;
-    x86_reg coeff_count;
-    x86_reg last=0;
-    x86_reg state;
-
-#ifdef BROKEN_RELOCATIONS
-    void *tables;
-
-    __asm__ volatile(
-        "lea    "MANGLE(ff_h264_cabac_tables)", %0      \n\t"
-        : "=&r"(tables)
-        : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
-    );
-#endif
-
-    __asm__ volatile(
-        "mov %1, %6                             \n\t"
-        "3:                                     \n\t"
-
-        "mov %10, %0                            \n\t"
-        "movzb (%0, %6), %6                     \n\t"
-        "add %9, %6                             \n\t"
-
-        BRANCHLESS_GET_CABAC("%4", "%q4", "(%6)", "%3", "%w3",
-                             "%5", "%q5", "%k0", "%b0",
-                             "%c12(%7)", "%c13(%7)",
-                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
-                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
-                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
-                             "%15")
-
-        "mov %1, %6                             \n\t"
-        "test $1, %4                            \n\t"
-        " jz 4f                                 \n\t"
-
-#ifdef BROKEN_RELOCATIONS
-        "movzb %c14(%15, %q6), %6\n\t"
-#else
-        "movzb "MANGLE(ff_h264_cabac_tables)"+%c14(%6), %6\n\t"
-#endif
-        "add %11, %6                            \n\t"
-
-        BRANCHLESS_GET_CABAC("%4", "%q4", "(%6)", "%3", "%w3",
-                             "%5", "%q5", "%k0", "%b0",
-                             "%c12(%7)", "%c13(%7)",
-                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
-                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
-                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
-                             "%15")
-
-        "mov %2, %0                             \n\t"
-        "mov %1, %6                             \n\t"
-        "mov %k6, (%0)                          \n\t"
-
-        "test $1, %4                            \n\t"
-        " jnz 5f                                \n\t"
-
-        "add"FF_OPSIZE"  $4, %2                 \n\t"
-
-        "4:                                     \n\t"
-        "add $1, %6                             \n\t"
-        "mov %6, %1                             \n\t"
-        "cmp $63, %6                            \n\t"
-        " jb 3b                                 \n\t"
-        "mov %2, %0                             \n\t"
-        "mov %k6, (%0)                          \n\t"
-        "5:                                     \n\t"
-        "addl %8, %k0                           \n\t"
-        "shr $2, %k0                            \n\t"
-        : "=&q"(coeff_count), "+"REG64(last), "+"REG64(index), "+&r"(c->low),
-          "=&r"(bit), "+&r"(c->range), "=&r"(state)
-        : "r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base),
-          REG64(sig_off), REG64(last_coeff_ctx_base),
-          "i"(offsetof(CABACContext, bytestream)),
-          "i"(offsetof(CABACContext, bytestream_end)),
-          "i"(H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET) TABLES_ARG
-        : "%"FF_REG_c, "memory"
-    );
-    return coeff_count;
-}
-#endif /* HAVE_7REGS && BROKEN_COMPILER */
-
-#endif /* HAVE_INLINE_ASM */
-#endif /* AVCODEC_X86_H264_I386_H */
diff --git a/media/ffvpx/libavcodec/x86/h264_intrapred.asm b/media/ffvpx/libavcodec/x86/h264_intrapred.asm
index c88d91b49..f3aa3172f 100644
--- a/media/ffvpx/libavcodec/x86/h264_intrapred.asm
+++ b/media/ffvpx/libavcodec/x86/h264_intrapred.asm
@@ -49,7 +49,7 @@ cextern pw_17
 cextern pw_32
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_vertical_8(uint8_t *src, int stride)
+; void ff_pred16x16_vertical_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmx
@@ -85,7 +85,7 @@ cglobal pred16x16_vertical_8, 2,3
     REP_RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_horizontal_8(uint8_t *src, int stride)
+; void ff_pred16x16_horizontal_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED16x16_H 0
@@ -126,7 +126,7 @@ INIT_XMM ssse3
 PRED16x16_H
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_dc_8(uint8_t *src, int stride)
+; void ff_pred16x16_dc_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED16x16_DC 0
@@ -188,7 +188,7 @@ INIT_XMM ssse3
 PRED16x16_DC
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_tm_vp8_8(uint8_t *src, int stride)
+; void ff_pred16x16_tm_vp8_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED16x16_TM 0
@@ -268,8 +268,45 @@ cglobal pred16x16_tm_vp8_8, 2,6,6
     jg .loop
     REP_RET
 
+%if HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+cglobal pred16x16_tm_vp8_8, 2, 4, 5, dst, stride, stride3, iteration
+    sub                       dstq, strideq
+    pmovzxbw                    m0, [dstq]
+    vpbroadcastb               xm1, [r0-1]
+    pmovzxbw                    m1, xm1
+    psubw                       m0, m1
+    mov                 iterationd, 4
+    lea                   stride3q, [strideq*3]
+.loop:
+    vpbroadcastb               xm1, [dstq+strideq*1-1]
+    vpbroadcastb               xm2, [dstq+strideq*2-1]
+    vpbroadcastb               xm3, [dstq+stride3q-1]
+    vpbroadcastb               xm4, [dstq+strideq*4-1]
+    pmovzxbw                    m1, xm1
+    pmovzxbw                    m2, xm2
+    pmovzxbw                    m3, xm3
+    pmovzxbw                    m4, xm4
+    paddw                       m1, m0
+    paddw                       m2, m0
+    paddw                       m3, m0
+    paddw                       m4, m0
+    vpackuswb                   m1, m1, m2
+    vpackuswb                   m3, m3, m4
+    vpermq                      m1, m1, q3120
+    vpermq                      m3, m3, q3120
+    movdqa        [dstq+strideq*1], xm1
+    vextracti128  [dstq+strideq*2], m1, 1
+    movdqa       [dstq+stride3q*1], xm3
+    vextracti128  [dstq+strideq*4], m3, 1
+    lea                       dstq, [dstq+strideq*4]
+    dec                 iterationd
+    jg .loop
+    REP_RET
+%endif
+
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_plane_*_8(uint8_t *src, int stride)
+; void ff_pred16x16_plane_*_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro H264_PRED16x16_PLANE 1
@@ -550,7 +587,7 @@ H264_PRED16x16_PLANE rv40
 H264_PRED16x16_PLANE svq3
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_plane_8(uint8_t *src, int stride)
+; void ff_pred8x8_plane_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro H264_PRED8x8_PLANE 0
@@ -724,7 +761,7 @@ INIT_XMM ssse3
 H264_PRED8x8_PLANE
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_vertical_8(uint8_t *src, int stride)
+; void ff_pred8x8_vertical_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmx
@@ -741,7 +778,7 @@ cglobal pred8x8_vertical_8, 2,2
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_horizontal_8(uint8_t *src, int stride)
+; void ff_pred8x8_horizontal_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8_H 0
@@ -769,7 +806,7 @@ INIT_MMX ssse3
 PRED8x8_H
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_top_dc_8_mmxext(uint8_t *src, int stride)
+; void ff_pred8x8_top_dc_8_mmxext(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_MMX mmxext
 cglobal pred8x8_top_dc_8, 2,5
@@ -803,7 +840,7 @@ cglobal pred8x8_top_dc_8, 2,5
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_dc_8_mmxext(uint8_t *src, int stride)
+; void ff_pred8x8_dc_8_mmxext(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -864,7 +901,7 @@ cglobal pred8x8_dc_8, 2,5
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_dc_rv40_8(uint8_t *src, int stride)
+; void ff_pred8x8_dc_rv40_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -901,7 +938,7 @@ cglobal pred8x8_dc_rv40_8, 2,7
     REP_RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_tm_vp8_8(uint8_t *src, int stride)
+; void ff_pred8x8_tm_vp8_8(uint8_t *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8_TM 0
@@ -1014,7 +1051,7 @@ cglobal pred8x8_tm_vp8_8, 2,3,6
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_top_dc_8(uint8_t *src, int has_topleft, int has_topright,
-;                           int stride)
+;                           ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_TOP_DC 0
 cglobal pred8x8l_top_dc_8, 4,4
@@ -1070,7 +1107,7 @@ PRED8x8L_TOP_DC
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_dc_8(uint8_t *src, int has_topleft, int has_topright,
-;                       int stride)
+;                       ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8L_DC 0
@@ -1174,7 +1211,7 @@ PRED8x8L_DC
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_horizontal_8(uint8_t *src, int has_topleft,
-;                               int has_topright, int stride)
+;                               int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8L_HORIZONTAL 0
@@ -1246,7 +1283,7 @@ PRED8x8L_HORIZONTAL
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_vertical_8(uint8_t *src, int has_topleft, int has_topright,
-;                             int stride)
+;                             ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8L_VERTICAL 0
@@ -1297,7 +1334,7 @@ PRED8x8L_VERTICAL
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_down_left_8(uint8_t *src, int has_topleft,
-;                              int has_topright, int stride)
+;                              int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -1498,7 +1535,7 @@ PRED8x8L_DOWN_LEFT
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_down_right_8_mmxext(uint8_t *src, int has_topleft,
-;                                      int has_topright, int stride)
+;                                      int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -1750,7 +1787,7 @@ PRED8x8L_DOWN_RIGHT
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_vertical_right_8(uint8_t *src, int has_topleft,
-;                                   int has_topright, int stride)
+;                                   int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -1978,7 +2015,7 @@ PRED8x8L_VERTICAL_RIGHT
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_vertical_left_8(uint8_t *src, int has_topleft,
-;                                  int has_topright, int stride)
+;                                  int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8L_VERTICAL_LEFT 0
@@ -2068,7 +2105,7 @@ PRED8x8L_VERTICAL_LEFT
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_horizontal_up_8(uint8_t *src, int has_topleft,
-;                                  int has_topright, int stride)
+;                                  int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED8x8L_HORIZONTAL_UP 0
@@ -2156,7 +2193,7 @@ PRED8x8L_HORIZONTAL_UP
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred8x8l_horizontal_down_8(uint8_t *src, int has_topleft,
-;                                    int has_topright, int stride)
+;                                    int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2404,7 +2441,8 @@ INIT_MMX ssse3
 PRED8x8L_HORIZONTAL_DOWN
 
 ;-------------------------------------------------------------------------------
-; void ff_pred4x4_dc_8_mmxext(uint8_t *src, const uint8_t *topright, int stride)
+; void ff_pred4x4_dc_8_mmxext(uint8_t *src, const uint8_t *topright,
+;                             ptrdiff_t stride)
 ;-------------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2435,7 +2473,7 @@ cglobal pred4x4_dc_8, 3,5
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred4x4_tm_vp8_8_mmxext(uint8_t *src, const uint8_t *topright,
-;                                 int stride)
+;                                 ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 %macro PRED4x4_TM 0
@@ -2514,7 +2552,7 @@ cglobal pred4x4_tm_vp8_8, 3,3
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred4x4_vertical_vp8_8_mmxext(uint8_t *src, const uint8_t *topright,
-;                                       int stride)
+;                                       ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2535,7 +2573,7 @@ cglobal pred4x4_vertical_vp8_8, 3,3
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred4x4_down_left_8_mmxext(uint8_t *src, const uint8_t *topright,
-;                                    int stride)
+;                                    ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_MMX mmxext
 cglobal pred4x4_down_left_8, 3,3
@@ -2562,7 +2600,7 @@ cglobal pred4x4_down_left_8, 3,3
 
 ;------------------------------------------------------------------------------
 ; void ff_pred4x4_vertical_left_8_mmxext(uint8_t *src, const uint8_t *topright,
-;                                        int stride)
+;                                        ptrdiff_t stride)
 ;------------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2588,7 +2626,7 @@ cglobal pred4x4_vertical_left_8, 3,3
 
 ;------------------------------------------------------------------------------
 ; void ff_pred4x4_horizontal_up_8_mmxext(uint8_t *src, const uint8_t *topright,
-;                                        int stride)
+;                                        ptrdiff_t stride)
 ;------------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2622,7 +2660,8 @@ cglobal pred4x4_horizontal_up_8, 3,3
 
 ;------------------------------------------------------------------------------
 ; void ff_pred4x4_horizontal_down_8_mmxext(uint8_t *src,
-;                                          const uint8_t *topright, int stride)
+;                                          const uint8_t *topright,
+;                                          ptrdiff_t stride)
 ;------------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2658,7 +2697,8 @@ cglobal pred4x4_horizontal_down_8, 3,3
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred4x4_vertical_right_8_mmxext(uint8_t *src,
-;                                         const uint8_t *topright, int stride)
+;                                         const uint8_t *topright,
+;                                         ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -2689,7 +2729,7 @@ cglobal pred4x4_vertical_right_8, 3,3
 
 ;-----------------------------------------------------------------------------
 ; void ff_pred4x4_down_right_8_mmxext(uint8_t *src, const uint8_t *topright,
-;                                     int stride)
+;                                     ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
diff --git a/media/ffvpx/libavcodec/x86/h264_intrapred_10bit.asm b/media/ffvpx/libavcodec/x86/h264_intrapred_10bit.asm
index 9e40cfe24..629e0a72e 100644
--- a/media/ffvpx/libavcodec/x86/h264_intrapred_10bit.asm
+++ b/media/ffvpx/libavcodec/x86/h264_intrapred_10bit.asm
@@ -51,7 +51,8 @@ SECTION .text
 %endmacro
 
 ;-----------------------------------------------------------------------------
-; void ff_pred4x4_down_right(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_down_right_10(pixel *src, const pixel *topright,
+;                               ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED4x4_DR 0
 cglobal pred4x4_down_right_10, 3, 3
@@ -89,7 +90,8 @@ PRED4x4_DR
 %endif
 
 ;------------------------------------------------------------------------------
-; void ff_pred4x4_vertical_right(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_vertical_right_10(pixel *src, const pixel *topright,
+;                                   ptrdiff_t stride)
 ;------------------------------------------------------------------------------
 %macro PRED4x4_VR 0
 cglobal pred4x4_vertical_right_10, 3, 3, 6
@@ -128,7 +130,8 @@ PRED4x4_VR
 %endif
 
 ;-------------------------------------------------------------------------------
-; void ff_pred4x4_horizontal_down(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_horizontal_down_10(pixel *src, const pixel *topright,
+;                                    ptrdiff_t stride)
 ;-------------------------------------------------------------------------------
 %macro PRED4x4_HD 0
 cglobal pred4x4_horizontal_down_10, 3, 3
@@ -170,7 +173,7 @@ PRED4x4_HD
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred4x4_dc(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_dc_10(pixel *src, const pixel *topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmxext
@@ -195,7 +198,8 @@ cglobal pred4x4_dc_10, 3, 3
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred4x4_down_left(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_down_left_10(pixel *src, const pixel *topright,
+;                              ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED4x4_DL 0
 cglobal pred4x4_down_left_10, 3, 3
@@ -225,7 +229,8 @@ PRED4x4_DL
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred4x4_vertical_left(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_vertical_left_10(pixel *src, const pixel *topright,
+;                                  ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED4x4_VL 0
 cglobal pred4x4_vertical_left_10, 3, 3
@@ -254,7 +259,8 @@ PRED4x4_VL
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred4x4_horizontal_up(pixel *src, const pixel *topright, int stride)
+; void ff_pred4x4_horizontal_up_10(pixel *src, const pixel *topright,
+;                                  ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_MMX mmxext
 cglobal pred4x4_horizontal_up_10, 3, 3
@@ -288,7 +294,7 @@ cglobal pred4x4_horizontal_up_10, 3, 3
 
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_vertical(pixel *src, int stride)
+; void ff_pred8x8_vertical_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_XMM sse2
 cglobal pred8x8_vertical_10, 2, 2
@@ -304,7 +310,7 @@ cglobal pred8x8_vertical_10, 2, 2
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_horizontal(pixel *src, int stride)
+; void ff_pred8x8_horizontal_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_XMM sse2
 cglobal pred8x8_horizontal_10, 2, 3
@@ -324,7 +330,7 @@ cglobal pred8x8_horizontal_10, 2, 3
     REP_RET
 
 ;-----------------------------------------------------------------------------
-; void ff_predict_8x8_dc(pixel *src, int stride)
+; void ff_predict_8x8_dc_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro MOV8 2-3
 ; sort of a hack, but it works
@@ -411,7 +417,7 @@ INIT_XMM sse2
 PRED8x8_DC pshuflw
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_top_dc(pixel *src, int stride)
+; void ff_pred8x8_top_dc_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_XMM sse2
 cglobal pred8x8_top_dc_10, 2, 4
@@ -438,7 +444,7 @@ cglobal pred8x8_top_dc_10, 2, 4
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8_plane(pixel *src, int stride)
+; void ff_pred8x8_plane_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 INIT_XMM sse2
 cglobal pred8x8_plane_10, 2, 7, 7
@@ -501,8 +507,8 @@ cglobal pred8x8_plane_10, 2, 7, 7
 
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_128_dc(pixel *src, int has_topleft, int has_topright,
-;                         int stride)
+; void ff_pred8x8l_128_dc_10(pixel *src, int has_topleft, int has_topright,
+;                            ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_128_DC 0
 cglobal pred8x8l_128_dc_10, 4, 4
@@ -526,8 +532,8 @@ INIT_XMM sse2
 PRED8x8L_128_DC
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_top_dc(pixel *src, int has_topleft, int has_topright,
-;                         int stride)
+; void ff_pred8x8l_top_dc_10(pixel *src, int has_topleft, int has_topright,
+;                            ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_TOP_DC 0
 cglobal pred8x8l_top_dc_10, 4, 4, 6
@@ -566,7 +572,8 @@ PRED8x8L_TOP_DC
 %endif
 
 ;-------------------------------------------------------------------------------
-; void ff_pred8x8l_dc(pixel *src, int has_topleft, int has_topright, int stride)
+; void ff_pred8x8l_dc_10(pixel *src, int has_topleft, int has_topright,
+;                        ptrdiff_t stride)
 ;-------------------------------------------------------------------------------
 ;TODO: see if scalar is faster
 %macro PRED8x8L_DC 0
@@ -625,8 +632,8 @@ PRED8x8L_DC
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_vertical(pixel *src, int has_topleft, int has_topright,
-;                           int stride)
+; void ff_pred8x8l_vertical_10(pixel *src, int has_topleft, int has_topright,
+;                              ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_VERTICAL 0
 cglobal pred8x8l_vertical_10, 4, 4, 6
@@ -661,8 +668,8 @@ PRED8x8L_VERTICAL
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_horizontal(uint8_t *src, int has_topleft, int has_topright,
-;                             int stride)
+; void ff_pred8x8l_horizontal_10(uint8_t *src, int has_topleft,
+;                                int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_HORIZONTAL 0
 cglobal pred8x8l_horizontal_10, 4, 4, 5
@@ -718,8 +725,8 @@ PRED8x8L_HORIZONTAL
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_down_left(pixel *src, int has_topleft, int has_topright,
-;                            int stride)
+; void ff_pred8x8l_down_left_10(pixel *src, int has_topleft, int has_topright,
+;                               ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_DOWN_LEFT 0
 cglobal pred8x8l_down_left_10, 4, 4, 7
@@ -787,8 +794,8 @@ PRED8x8L_DOWN_LEFT
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_down_right(pixel *src, int has_topleft, int has_topright,
-;                             int stride)
+; void ff_pred8x8l_down_right_10(pixel *src, int has_topleft,
+;                                int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_DOWN_RIGHT 0
 ; standard forbids this when has_topleft is false
@@ -862,8 +869,8 @@ PRED8x8L_DOWN_RIGHT
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_vertical_right(pixel *src, int has_topleft,
-;                                 int has_topright, int stride)
+; void ff_pred8x8l_vertical_right_10(pixel *src, int has_topleft,
+;                                    int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_VERTICAL_RIGHT 0
 ; likewise with 8x8l_down_right
@@ -933,8 +940,8 @@ PRED8x8L_VERTICAL_RIGHT
 %endif
 
 ;-----------------------------------------------------------------------------
-; void ff_pred8x8l_horizontal_up(pixel *src, int has_topleft,
-;                                int has_topright, int stride)
+; void ff_pred8x8l_horizontal_up_10(pixel *src, int has_topleft,
+;                                   int has_topright, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED8x8L_HORIZONTAL_UP 0
 cglobal pred8x8l_horizontal_up_10, 4, 4, 6
@@ -996,7 +1003,7 @@ PRED8x8L_HORIZONTAL_UP
 
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_vertical(pixel *src, int stride)
+; void ff_pred16x16_vertical_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro MOV16 3-5
     mova [%1+     0], %2
@@ -1032,7 +1039,7 @@ INIT_XMM sse2
 PRED16x16_VERTICAL
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_horizontal(pixel *src, int stride)
+; void ff_pred16x16_horizontal_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED16x16_HORIZONTAL 0
 cglobal pred16x16_horizontal_10, 2, 3
@@ -1056,7 +1063,7 @@ INIT_XMM sse2
 PRED16x16_HORIZONTAL
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_dc(pixel *src, int stride)
+; void ff_pred16x16_dc_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED16x16_DC 0
 cglobal pred16x16_dc_10, 2, 6
@@ -1102,7 +1109,7 @@ INIT_XMM sse2
 PRED16x16_DC
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_top_dc(pixel *src, int stride)
+; void ff_pred16x16_top_dc_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED16x16_TOP_DC 0
 cglobal pred16x16_top_dc_10, 2, 3
@@ -1134,7 +1141,7 @@ INIT_XMM sse2
 PRED16x16_TOP_DC
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_left_dc(pixel *src, int stride)
+; void ff_pred16x16_left_dc_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED16x16_LEFT_DC 0
 cglobal pred16x16_left_dc_10, 2, 6
@@ -1171,7 +1178,7 @@ INIT_XMM sse2
 PRED16x16_LEFT_DC
 
 ;-----------------------------------------------------------------------------
-; void ff_pred16x16_128_dc(pixel *src, int stride)
+; void ff_pred16x16_128_dc_10(pixel *src, ptrdiff_t stride)
 ;-----------------------------------------------------------------------------
 %macro PRED16x16_128_DC 0
 cglobal pred16x16_128_dc_10, 2,3
diff --git a/media/ffvpx/libavcodec/x86/h264_intrapred_init.c b/media/ffvpx/libavcodec/x86/h264_intrapred_init.c
index 528b92e49..bdd5125d6 100644
--- a/media/ffvpx/libavcodec/x86/h264_intrapred_init.c
+++ b/media/ffvpx/libavcodec/x86/h264_intrapred_init.c
@@ -127,6 +127,7 @@ PRED16x16(plane_svq3, 8, ssse3)
 PRED16x16(tm_vp8, 8, mmx)
 PRED16x16(tm_vp8, 8, mmxext)
 PRED16x16(tm_vp8, 8, sse2)
+PRED16x16(tm_vp8, 8, avx2)
 
 PRED8x8(top_dc, 8, mmxext)
 PRED8x8(dc_rv40, 8, mmxext)
@@ -323,6 +324,12 @@ av_cold void ff_h264_pred_init_x86(H264PredContext *h, int codec_id,
                 }
             }
         }
+
+        if(EXTERNAL_AVX2(cpu_flags)){
+            if (codec_id == AV_CODEC_ID_VP8) {
+                h->pred16x16[PLANE_PRED8x8    ] = ff_pred16x16_tm_vp8_8_avx2;
+            }
+        }
     } else if (bit_depth == 10) {
         if (EXTERNAL_MMXEXT(cpu_flags)) {
             h->pred4x4[DC_PRED             ] = ff_pred4x4_dc_10_mmxext;
diff --git a/media/ffvpx/libavcodec/x86/videodsp.asm b/media/ffvpx/libavcodec/x86/videodsp.asm
index a807d3b88..e23786070 100644
--- a/media/ffvpx/libavcodec/x86/videodsp.asm
+++ b/media/ffvpx/libavcodec/x86/videodsp.asm
@@ -114,7 +114,7 @@ cglobal emu_edge_hvar, 5, 6, 1, dst, dst_stride, start_x, n_words, h, w
 .x_loop:                                        ;   do {
     movu    [dstq+wq*2], m0                     ;     write($reg, $mmsize)
     add              wq, mmsize/2               ;     w -= $mmsize/2
-    cmp              wq, -mmsize/2              ;   } while (w > $mmsize/2)
+    cmp              wq, -(mmsize/2)            ;   } while (w > $mmsize/2)
     jl .x_loop
     movu  [dstq-mmsize], m0                     ;   write($reg, $mmsize)
     add            dstq, dst_strideq            ;   dst += dst_stride
diff --git a/media/ffvpx/libavcodec/x86/videodsp_init.c b/media/ffvpx/libavcodec/x86/videodsp_init.c
index 26e072bb1..eeebb4154 100644
--- a/media/ffvpx/libavcodec/x86/videodsp_init.c
+++ b/media/ffvpx/libavcodec/x86/videodsp_init.c
@@ -29,7 +29,7 @@
 #include "libavutil/x86/cpu.h"
 #include "libavcodec/videodsp.h"
 
-#if HAVE_YASM
+#if HAVE_X86ASM
 typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
                                 const uint8_t *src, x86_reg src_stride,
                                 x86_reg start_y, x86_reg end_y, x86_reg bh);
@@ -271,14 +271,14 @@ static av_noinline void emulated_edge_mc_avx2(uint8_t *buf, const uint8_t *src,
                      hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
 }
 #endif /* HAVE_AVX2_EXTERNAL */
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 
 void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
 void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h);
 
 av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
 #if ARCH_X86_32
@@ -305,5 +305,5 @@ av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
         ctx->emulated_edge_mc = emulated_edge_mc_avx2;
     }
 #endif
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 }
diff --git a/media/ffvpx/libavcodec/x86/vp8dsp.asm b/media/ffvpx/libavcodec/x86/vp8dsp.asm
index 538b3f4a9..e303b8029 100644
--- a/media/ffvpx/libavcodec/x86/vp8dsp.asm
+++ b/media/ffvpx/libavcodec/x86/vp8dsp.asm
@@ -156,8 +156,8 @@ SECTION .text
 ;-------------------------------------------------------------------------------
 ; subpel MC functions:
 ;
-; void ff_put_vp8_epel<size>_h<htap>v<vtap>_<opt>(uint8_t *dst, int deststride,
-;                                                 uint8_t *src, int srcstride,
+; void ff_put_vp8_epel<size>_h<htap>v<vtap>_<opt>(uint8_t *dst, ptrdiff_t deststride,
+;                                                 uint8_t *src, ptrdiff_t srcstride,
 ;                                                 int height,   int mx, int my);
 ;-------------------------------------------------------------------------------
 
@@ -884,7 +884,7 @@ cglobal put_vp8_pixels16, 5, 5, 2, dst, dststride, src, srcstride, height
     REP_RET
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_idct_dc_add_<opt>(uint8_t *dst, int16_t block[16], int stride);
+; void ff_vp8_idct_dc_add_<opt>(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
 ;-----------------------------------------------------------------------------
 
 %macro ADD_DC 4
@@ -906,6 +906,7 @@ cglobal put_vp8_pixels16, 5, 5, 2, dst, dststride, src, srcstride, height
     %4 [dst2q+strideq+%3], m5
 %endmacro
 
+%if ARCH_X86_32
 INIT_MMX mmx
 cglobal vp8_idct_dc_add, 3, 3, 0, dst, block, stride
     ; load data
@@ -929,8 +930,9 @@ cglobal vp8_idct_dc_add, 3, 3, 0, dst, block, stride
     lea     dst2q, [dst1q+strideq*2]
     ADD_DC     m0, m1, 0, movh
     RET
+%endif
 
-INIT_XMM sse4
+%macro VP8_IDCT_DC_ADD 0
 cglobal vp8_idct_dc_add, 3, 3, 6, dst, block, stride
     ; load data
     movd       m0, [blockq]
@@ -956,13 +958,28 @@ cglobal vp8_idct_dc_add, 3, 3, 6, dst, block, stride
     paddw      m4, m0
     packuswb   m2, m4
     movd   [dst1q], m2
+%if cpuflag(sse4)
     pextrd [dst1q+strideq], m2, 1
     pextrd [dst2q], m2, 2
     pextrd [dst2q+strideq], m2, 3
+%else
+    psrldq     m2, 4
+    movd [dst1q+strideq], m2
+    psrldq     m2, 4
+    movd [dst2q], m2
+    psrldq     m2, 4
+    movd [dst2q+strideq], m2
+%endif
     RET
+%endmacro
+
+INIT_XMM sse2
+VP8_IDCT_DC_ADD
+INIT_XMM sse4
+VP8_IDCT_DC_ADD
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_idct_dc_add4y_<opt>(uint8_t *dst, int16_t block[4][16], int stride);
+; void ff_vp8_idct_dc_add4y_<opt>(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride);
 ;-----------------------------------------------------------------------------
 
 %if ARCH_X86_32
@@ -1035,7 +1052,7 @@ cglobal vp8_idct_dc_add4y, 3, 3, 6, dst, block, stride
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_idct_dc_add4uv_<opt>(uint8_t *dst, int16_t block[4][16], int stride);
+; void ff_vp8_idct_dc_add4uv_<opt>(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride);
 ;-----------------------------------------------------------------------------
 
 INIT_MMX mmx
@@ -1077,7 +1094,7 @@ cglobal vp8_idct_dc_add4uv, 3, 3, 0, dst, block, stride
     RET
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_idct_add_<opt>(uint8_t *dst, int16_t block[16], int stride);
+; void ff_vp8_idct_add_<opt>(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
 ;-----------------------------------------------------------------------------
 
 ; calculate %1=mul_35468(%1)-mul_20091(%2); %2=mul_20091(%1)+mul_35468(%2)
diff --git a/media/ffvpx/libavcodec/x86/vp8dsp_init.c b/media/ffvpx/libavcodec/x86/vp8dsp_init.c
index 897d5a0e7..397b2518c 100644
--- a/media/ffvpx/libavcodec/x86/vp8dsp_init.c
+++ b/media/ffvpx/libavcodec/x86/vp8dsp_init.c
@@ -26,7 +26,7 @@
 #include "libavutil/x86/cpu.h"
 #include "libavcodec/vp8dsp.h"
 
-#if HAVE_YASM
+#if HAVE_X86ASM
 
 /*
  * MC functions
@@ -233,6 +233,8 @@ HVBILIN(ssse3, 8, 16, 16)
 
 void ff_vp8_idct_dc_add_mmx(uint8_t *dst, int16_t block[16],
                             ptrdiff_t stride);
+void ff_vp8_idct_dc_add_sse2(uint8_t *dst, int16_t block[16],
+                             ptrdiff_t stride);
 void ff_vp8_idct_dc_add_sse4(uint8_t *dst, int16_t block[16],
                              ptrdiff_t stride);
 void ff_vp8_idct_dc_add4y_mmx(uint8_t *dst, int16_t block[4][16],
@@ -288,7 +290,7 @@ DECLARE_LOOP_FILTER(sse2)
 DECLARE_LOOP_FILTER(ssse3)
 DECLARE_LOOP_FILTER(sse4)
 
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 
 #define VP8_LUMA_MC_FUNC(IDX, SIZE, OPT) \
     c->put_vp8_epel_pixels_tab[IDX][0][2] = ff_put_vp8_epel ## SIZE ## _h6_ ## OPT; \
@@ -316,7 +318,7 @@ DECLARE_LOOP_FILTER(sse4)
 
 av_cold void ff_vp78dsp_init_x86(VP8DSPContext *c)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
     if (EXTERNAL_MMX(cpu_flags)) {
@@ -346,7 +348,7 @@ av_cold void ff_vp78dsp_init_x86(VP8DSPContext *c)
         c->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_sse;
     }
 
-    if (HAVE_SSE2_EXTERNAL && cpu_flags & (AV_CPU_FLAG_SSE2 | AV_CPU_FLAG_SSE2SLOW)) {
+    if (EXTERNAL_SSE2(cpu_flags) || EXTERNAL_SSE2_SLOW(cpu_flags)) {
         VP8_LUMA_MC_FUNC(0, 16, sse2);
         VP8_MC_FUNC(1, 8, sse2);
         VP8_BILINEAR_MC_FUNC(0, 16, sse2);
@@ -361,18 +363,18 @@ av_cold void ff_vp78dsp_init_x86(VP8DSPContext *c)
         VP8_BILINEAR_MC_FUNC(1, 8, ssse3);
         VP8_BILINEAR_MC_FUNC(2, 4, ssse3);
     }
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 }
 
 av_cold void ff_vp8dsp_init_x86(VP8DSPContext *c)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
     if (EXTERNAL_MMX(cpu_flags)) {
-        c->vp8_idct_dc_add    = ff_vp8_idct_dc_add_mmx;
         c->vp8_idct_dc_add4uv = ff_vp8_idct_dc_add4uv_mmx;
 #if ARCH_X86_32
+        c->vp8_idct_dc_add    = ff_vp8_idct_dc_add_mmx;
         c->vp8_idct_dc_add4y  = ff_vp8_idct_dc_add4y_mmx;
         c->vp8_idct_add       = ff_vp8_idct_add_mmx;
         c->vp8_luma_dc_wht    = ff_vp8_luma_dc_wht_mmx;
@@ -416,7 +418,7 @@ av_cold void ff_vp8dsp_init_x86(VP8DSPContext *c)
         c->vp8_luma_dc_wht                      = ff_vp8_luma_dc_wht_sse;
     }
 
-    if (HAVE_SSE2_EXTERNAL && cpu_flags & (AV_CPU_FLAG_SSE2 | AV_CPU_FLAG_SSE2SLOW)) {
+    if (EXTERNAL_SSE2(cpu_flags) || EXTERNAL_SSE2_SLOW(cpu_flags)) {
         c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_sse2;
 
         c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_sse2;
@@ -427,6 +429,7 @@ av_cold void ff_vp8dsp_init_x86(VP8DSPContext *c)
     }
 
     if (EXTERNAL_SSE2(cpu_flags)) {
+        c->vp8_idct_dc_add            = ff_vp8_idct_dc_add_sse2;
         c->vp8_idct_dc_add4y          = ff_vp8_idct_dc_add4y_sse2;
 
         c->vp8_h_loop_filter_simple   = ff_vp8_h_loop_filter_simple_sse2;
@@ -460,5 +463,5 @@ av_cold void ff_vp8dsp_init_x86(VP8DSPContext *c)
         c->vp8_h_loop_filter16y       = ff_vp8_h_loop_filter16y_mbedge_sse4;
         c->vp8_h_loop_filter8uv       = ff_vp8_h_loop_filter8uv_mbedge_sse4;
     }
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 }
diff --git a/media/ffvpx/libavcodec/x86/vp8dsp_loopfilter.asm b/media/ffvpx/libavcodec/x86/vp8dsp_loopfilter.asm
index 98bb6696a..caeb40526 100644
--- a/media/ffvpx/libavcodec/x86/vp8dsp_loopfilter.asm
+++ b/media/ffvpx/libavcodec/x86/vp8dsp_loopfilter.asm
@@ -43,7 +43,7 @@ cextern pb_80
 SECTION .text
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_h/v_loop_filter_simple_<opt>(uint8_t *dst, int stride, int flim);
+; void ff_vp8_h/v_loop_filter_simple_<opt>(uint8_t *dst, ptrdiff_t stride, int flim);
 ;-----------------------------------------------------------------------------
 
 ; macro called with 7 mm register indexes as argument, and 4 regular registers
@@ -429,7 +429,7 @@ INIT_XMM sse4
 SIMPLE_LOOPFILTER h, 5
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_h/v_loop_filter<size>_inner_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
+; void ff_vp8_h/v_loop_filter<size>_inner_<opt>(uint8_t *dst, [uint8_t *v,] ptrdiff_t stride,
 ;                                               int flimE, int flimI, int hev_thr);
 ;-----------------------------------------------------------------------------
 
@@ -921,7 +921,7 @@ INNER_LOOPFILTER v,  8
 INNER_LOOPFILTER h,  8
 
 ;-----------------------------------------------------------------------------
-; void ff_vp8_h/v_loop_filter<size>_mbedge_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
+; void ff_vp8_h/v_loop_filter<size>_mbedge_<opt>(uint8_t *dst, [uint8_t *v,] ptrdiff_t stride,
 ;                                                int flimE, int flimI, int hev_thr);
 ;-----------------------------------------------------------------------------
 
diff --git a/media/ffvpx/libavcodec/x86/vp9dsp_init.c b/media/ffvpx/libavcodec/x86/vp9dsp_init.c
index cc781a009..837cce850 100644
--- a/media/ffvpx/libavcodec/x86/vp9dsp_init.c
+++ b/media/ffvpx/libavcodec/x86/vp9dsp_init.c
@@ -27,7 +27,7 @@
 #include "libavcodec/vp9dsp.h"
 #include "libavcodec/x86/vp9dsp_init.h"
 
-#if HAVE_YASM
+#if HAVE_X86ASM
 
 decl_fpel_func(put,  4,   , mmx);
 decl_fpel_func(put,  8,   , mmx);
@@ -114,7 +114,7 @@ itxfm_func(idct, idct, 32, sse2);
 itxfm_func(idct, idct, 32, ssse3);
 itxfm_func(idct, idct, 32, avx);
 itxfm_func(iwht, iwht, 4, mmx);
-itxfm_func(idct, idct, 16, avx2);
+itxfm_funcs(16, avx2);
 itxfm_func(idct, idct, 32, avx2);
 
 #undef itxfm_func
@@ -212,11 +212,11 @@ ipred_func(32, tm, avx2);
 #undef ipred_dir_tm_funcs
 #undef ipred_dc_funcs
 
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 
 av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp, int bpp, int bitexact)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags;
 
     if (bpp == 10) {
@@ -391,6 +391,12 @@ av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp, int bpp, int bitexact)
         if (ARCH_X86_64) {
 #if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
             dsp->itxfm_add[TX_16X16][DCT_DCT] = ff_vp9_idct_idct_16x16_add_avx2;
+            dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_avx2;
+            dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_avx2;
+            dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_avx2;
+            dsp->itxfm_add[TX_32X32][ADST_ADST] =
+            dsp->itxfm_add[TX_32X32][ADST_DCT] =
+            dsp->itxfm_add[TX_32X32][DCT_ADST] =
             dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_avx2;
             init_subpel3_32_64(0, put, 8, avx2);
             init_subpel3_32_64(1, avg, 8, avx2);
@@ -406,5 +412,5 @@ av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp, int bpp, int bitexact)
 #undef init_subpel2
 #undef init_subpel3
 
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 }
diff --git a/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp.c b/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp.c
index eb67499c9..60d10a12a 100644
--- a/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp.c
+++ b/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp.c
@@ -27,7 +27,7 @@
 #include "libavcodec/vp9dsp.h"
 #include "libavcodec/x86/vp9dsp_init.h"
 
-#if HAVE_YASM
+#if HAVE_X86ASM
 
 decl_fpel_func(put,   8,    , mmx);
 decl_fpel_func(avg,   8, _16, mmxext);
@@ -51,6 +51,10 @@ decl_ipred_fns(h,       16, mmxext, sse2);
 decl_ipred_fns(dc,      16, mmxext, sse2);
 decl_ipred_fns(dc_top,  16, mmxext, sse2);
 decl_ipred_fns(dc_left, 16, mmxext, sse2);
+decl_ipred_fn(dl,       16,     16, avx2);
+decl_ipred_fn(dl,       32,     16, avx2);
+decl_ipred_fn(dr,       16,     16, avx2);
+decl_ipred_fn(dr,       32,     16, avx2);
 
 #define decl_ipred_dir_funcs(type) \
 decl_ipred_fns(type, 16, sse2,  sse2); \
@@ -63,11 +67,11 @@ decl_ipred_dir_funcs(vl);
 decl_ipred_dir_funcs(vr);
 decl_ipred_dir_funcs(hu);
 decl_ipred_dir_funcs(hd);
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 
 av_cold void ff_vp9dsp_init_16bpp_x86(VP9DSPContext *dsp)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
     if (EXTERNAL_MMX(cpu_flags)) {
@@ -133,7 +137,13 @@ av_cold void ff_vp9dsp_init_16bpp_x86(VP9DSPContext *dsp)
         init_fpel_func(2, 1,  32, avg, _16, avx2);
         init_fpel_func(1, 1,  64, avg, _16, avx2);
         init_fpel_func(0, 1, 128, avg, _16, avx2);
+        init_ipred_func(dl, DIAG_DOWN_LEFT, 16, 16, avx2);
+        init_ipred_func(dl, DIAG_DOWN_LEFT, 32, 16, avx2);
+        init_ipred_func(dr, DIAG_DOWN_RIGHT, 16, 16, avx2);
+#if ARCH_X86_64
+        init_ipred_func(dr, DIAG_DOWN_RIGHT, 32, 16, avx2);
+#endif
     }
 
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 }
diff --git a/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp_template.c b/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp_template.c
index 4840b2844..b56afc7f5 100644
--- a/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp_template.c
+++ b/media/ffvpx/libavcodec/x86/vp9dsp_init_16bpp_template.c
@@ -27,7 +27,7 @@
 #include "libavcodec/vp9dsp.h"
 #include "libavcodec/x86/vp9dsp_init.h"
 
-#if HAVE_YASM
+#if HAVE_X86ASM
 
 extern const int16_t ff_filters_16bpp[3][15][4][16];
 
@@ -137,11 +137,11 @@ decl_itxfm_func(iadst, iadst, 4, BPC, sse2);
 decl_itxfm_funcs(8, BPC, sse2);
 decl_itxfm_funcs(16, BPC, sse2);
 decl_itxfm_func(idct,  idct, 32, BPC, sse2);
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 
 av_cold void INIT_FUNC(VP9DSPContext *dsp, int bitexact)
 {
-#if HAVE_YASM
+#if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
 
 #define init_lpf_8_func(idx1, idx2, dir, wd, bpp, opt) \
@@ -234,7 +234,7 @@ av_cold void INIT_FUNC(VP9DSPContext *dsp, int bitexact)
 #endif
     }
 
-#endif /* HAVE_YASM */
+#endif /* HAVE_X86ASM */
 
     ff_vp9dsp_init_16bpp_x86(dsp);
 }
diff --git a/media/ffvpx/libavcodec/x86/vp9intrapred_16bpp.asm b/media/ffvpx/libavcodec/x86/vp9intrapred_16bpp.asm
index c0ac16d3e..32b698243 100644
--- a/media/ffvpx/libavcodec/x86/vp9intrapred_16bpp.asm
+++ b/media/ffvpx/libavcodec/x86/vp9intrapred_16bpp.asm
@@ -847,6 +847,108 @@ DL_FUNCS
 INIT_XMM avx
 DL_FUNCS
 
+%if HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+cglobal vp9_ipred_dl_16x16_16, 2, 4, 5, dst, stride, l, a
+    movifnidn               aq, amp
+    mova                    m0, [aq]                   ; abcdefghijklmnop
+    vpbroadcastw           xm1, [aq+30]                ; pppppppp
+    vperm2i128              m2, m0, m1, q0201          ; ijklmnoppppppppp
+    vpalignr                m3, m2, m0, 2              ; bcdefghijklmnopp
+    vpalignr                m4, m2, m0, 4              ; cdefghijklmnoppp
+    LOWPASS                  0,  3,  4                 ; BCDEFGHIJKLMNOPp
+    vperm2i128              m2, m0, m1, q0201          ; JKLMNOPppppppppp
+    DEFINE_ARGS dst, stride, stride3, cnt
+    mov                   cntd, 2
+    lea               stride3q, [strideq*3]
+
+.loop:
+    mova      [dstq+strideq*0], m0
+    vpalignr                m3, m2, m0, 2
+    vpalignr                m4, m2, m0, 4
+    mova      [dstq+strideq*1], m3
+    mova      [dstq+strideq*2], m4
+    vpalignr                m3, m2, m0, 6
+    vpalignr                m4, m2, m0, 8
+    mova      [dstq+stride3q ], m3
+    lea                   dstq, [dstq+strideq*4]
+    mova      [dstq+strideq*0], m4
+    vpalignr                m3, m2, m0, 10
+    vpalignr                m4, m2, m0, 12
+    mova      [dstq+strideq*1], m3
+    mova      [dstq+strideq*2], m4
+    vpalignr                m3, m2, m0, 14
+    mova      [dstq+stride3q ], m3
+    lea                   dstq, [dstq+strideq*4]
+    mova                    m0, m2
+    vperm2i128              m2, m2, m2, q0101          ; pppppppppppppppp
+    dec                   cntd
+    jg .loop
+    RET
+
+cglobal vp9_ipred_dl_32x32_16, 2, 6, 7, dst, stride, l, a
+    movifnidn               aq, amp
+    mova                    m0, [aq+mmsize*0+ 0]       ; abcdefghijklmnop
+    mova                    m1, [aq+mmsize*1+ 0]       ; qrstuvwxyz012345
+    vpbroadcastw           xm4, [aq+mmsize*1+30]       ; 55555555
+    vperm2i128              m5, m0, m1, q0201          ; ijklmnopqrstuvwx
+    vpalignr                m2, m5, m0, 2              ; bcdefghijklmnopq
+    vpalignr                m3, m5, m0, 4              ; cdefghijklmnopqr
+    LOWPASS                  0,  2,  3                 ; BCDEFGHIJKLMNOPQ
+    vperm2i128              m5, m1, m4, q0201          ; yz01234555555555
+    vpalignr                m2, m5, m1, 2              ; rstuvwxyz0123455
+    vpalignr                m3, m5, m1, 4              ; stuvwxyz01234555
+    LOWPASS                  1,  2,  3                 ; RSTUVWXYZ......5
+    vperm2i128              m2, m1, m4, q0201          ; Z......555555555
+    vperm2i128              m5, m0, m1, q0201          ; JKLMNOPQRSTUVWXY
+    DEFINE_ARGS dst, stride, stride3, cnt
+    lea               stride3q, [strideq*3]
+    mov                   cntd, 4
+
+.loop:
+    mova   [dstq+strideq*0 + 0], m0
+    mova   [dstq+strideq*0 +32], m1
+    vpalignr                 m3, m5, m0, 2
+    vpalignr                 m4, m2, m1, 2
+    mova   [dstq+strideq*1 + 0], m3
+    mova   [dstq+strideq*1 +32], m4
+    vpalignr                 m3, m5, m0, 4
+    vpalignr                 m4, m2, m1, 4
+    mova   [dstq+strideq*2 + 0], m3
+    mova   [dstq+strideq*2 +32], m4
+    vpalignr                 m3, m5, m0, 6
+    vpalignr                 m4, m2, m1, 6
+    mova   [dstq+stride3q*1+ 0], m3
+    mova   [dstq+stride3q*1+32], m4
+    lea                    dstq, [dstq+strideq*4]
+    vpalignr                 m3, m5, m0, 8
+    vpalignr                 m4, m2, m1, 8
+    mova   [dstq+strideq*0 + 0], m3
+    mova   [dstq+strideq*0 +32], m4
+    vpalignr                 m3, m5, m0, 10
+    vpalignr                 m4, m2, m1, 10
+    mova   [dstq+strideq*1 + 0], m3
+    mova   [dstq+strideq*1 +32], m4
+    vpalignr                 m3, m5, m0, 12
+    vpalignr                 m4, m2, m1, 12
+    mova   [dstq+strideq*2+ 0], m3
+    mova   [dstq+strideq*2+32], m4
+    vpalignr                 m3, m5, m0, 14
+    vpalignr                 m4, m2, m1, 14
+    mova   [dstq+stride3q+  0], m3
+    mova   [dstq+stride3q+ 32], m4
+    vpalignr                 m3, m5, m0, 16
+    vpalignr                 m4, m2, m1, 16
+    vperm2i128               m5, m3, m4, q0201
+    vperm2i128               m2, m4, m4, q0101
+    mova                     m0, m3
+    mova                     m1, m4
+    lea                    dstq, [dstq+strideq*4]
+    dec                    cntd
+    jg .loop
+    RET
+%endif
+
 %macro DR_FUNCS 1 ; stack_mem_for_32x32_32bit_function
 cglobal vp9_ipred_dr_4x4_16, 4, 4, 3, dst, stride, l, a
     movh                    m0, [lq]                ; wxyz....
@@ -1068,6 +1170,161 @@ DR_FUNCS 2
 INIT_XMM avx
 DR_FUNCS 2
 
+%if HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+cglobal vp9_ipred_dr_16x16_16, 4, 5, 6, dst, stride, l, a
+    mova                    m0, [lq]                   ; klmnopqrstuvwxyz
+    movu                    m1, [aq-2]                 ; *abcdefghijklmno
+    mova                    m2, [aq]                   ; abcdefghijklmnop
+    vperm2i128              m4, m2, m2, q2001          ; ijklmnop........
+    vpalignr                m5, m4, m2, 2              ; bcdefghijklmnop.
+    vperm2i128              m3, m0, m1, q0201          ; stuvwxyz*abcdefg
+    LOWPASS                  1,  2,  5                 ; ABCDEFGHIJKLMNO.
+    vpalignr                m4, m3, m0, 2              ; lmnopqrstuvwxyz*
+    vpalignr                m5, m3, m0, 4              ; mnopqrstuvwxyz*a
+    LOWPASS                  0,  4,  5                 ; LMNOPQRSTUVWXYZ#
+    vperm2i128              m5, m0, m1, q0201          ; TUVWXYZ#ABCDEFGH
+    DEFINE_ARGS dst, stride, stride3, stride5, dst3
+    lea                  dst3q, [dstq+strideq*4]
+    lea               stride3q, [strideq*3]
+    lea               stride5q, [stride3q+strideq*2]
+
+    vpalignr                m3, m5, m0, 2
+    vpalignr                m4, m1, m5, 2
+    mova    [dst3q+stride5q*2], m3                     ; 14
+    mova    [ dstq+stride3q*2], m4                     ; 6
+    vpalignr                m3, m5, m0, 4
+    vpalignr                m4, m1, m5, 4
+    sub                  dst3q, strideq
+    mova    [dst3q+stride5q*2], m3                     ; 13
+    mova    [dst3q+strideq*2 ], m4                     ; 5
+    mova    [dst3q+stride3q*4], m0                     ; 15
+    vpalignr                m3, m5, m0, 6
+    vpalignr                m4, m1, m5, 6
+    mova     [dstq+stride3q*4], m3                     ; 12
+    mova     [dst3q+strideq*1], m4                     ; 4
+    vpalignr                m3, m5, m0, 8
+    vpalignr                m4, m1, m5, 8
+    mova     [dst3q+strideq*8], m3                     ; 11
+    mova     [dst3q+strideq*0], m4                     ; 3
+    vpalignr                m3, m5, m0, 10
+    vpalignr                m4, m1, m5, 10
+    mova     [dstq+stride5q*2], m3                     ; 10
+    mova     [dstq+strideq*2 ], m4                     ; 2
+    vpalignr                m3, m5, m0, 12
+    vpalignr                m4, m1, m5, 12
+    mova    [dst3q+stride3q*2], m3                     ; 9
+    mova     [dstq+strideq*1 ], m4                     ; 1
+    vpalignr                m3, m5, m0, 14
+    vpalignr                m4, m1, m5, 14
+    mova      [dstq+strideq*8], m3                     ; 8
+    mova      [dstq+strideq*0], m4                     ; 0
+    mova     [dst3q+strideq*4], m5                     ; 7
+    RET
+
+%if ARCH_X86_64
+cglobal vp9_ipred_dr_32x32_16, 4, 7, 10, dst, stride, l, a
+    mova                    m0, [lq+mmsize*0+0]        ; l[0-15]
+    mova                    m1, [lq+mmsize*1+0]        ; l[16-31]
+    movu                    m2, [aq+mmsize*0-2]        ; *abcdefghijklmno
+    mova                    m3, [aq+mmsize*0+0]        ; abcdefghijklmnop
+    mova                    m4, [aq+mmsize*1+0]        ; qrstuvwxyz012345
+    vperm2i128              m5, m0, m1, q0201          ; lmnopqrstuvwxyz0
+    vpalignr                m6, m5, m0, 2              ; mnopqrstuvwxyz01
+    vpalignr                m7, m5, m0, 4              ; nopqrstuvwxyz012
+    LOWPASS                  0,  6,  7                 ; L[0-15]
+    vperm2i128              m7, m1, m2, q0201          ; stuvwxyz*abcdefg
+    vpalignr                m5, m7, m1, 2              ; lmnopqrstuvwxyz*
+    vpalignr                m6, m7, m1, 4              ; mnopqrstuvwxyz*a
+    LOWPASS                  1,  5,  6                 ; L[16-31]#
+    vperm2i128              m5, m3, m4, q0201          ; ijklmnopqrstuvwx
+    vpalignr                m6, m5, m3, 2              ; bcdefghijklmnopq
+    LOWPASS                  2,  3,  6                 ; A[0-15]
+    movu                    m3, [aq+mmsize*1-2]        ; pqrstuvwxyz01234
+    vperm2i128              m6, m4, m4, q2001          ; yz012345........
+    vpalignr                m7, m6, m4, 2              ; rstuvwxyz012345.
+    LOWPASS                  3,  4,  7                 ; A[16-31].
+    vperm2i128              m4, m1, m2, q0201          ; TUVWXYZ#ABCDEFGH
+    vperm2i128              m5, m0, m1, q0201          ; L[7-15]L[16-23]
+    vperm2i128              m8, m2, m3, q0201          ; IJKLMNOPQRSTUVWX
+    DEFINE_ARGS dst8, stride, stride3, stride7, stride5, dst24, cnt
+    lea               stride3q, [strideq*3]
+    lea               stride5q, [stride3q+strideq*2]
+    lea               stride7q, [strideq*4+stride3q]
+    lea                 dst24q, [dst8q+stride3q*8]
+    lea                  dst8q, [dst8q+strideq*8]
+    mov                   cntd, 2
+
+.loop:
+    mova  [dst24q+stride7q+0 ], m0                     ; 31 23 15 7
+    mova  [dst24q+stride7q+32], m1
+    mova    [dst8q+stride7q+0], m1
+    mova   [dst8q+stride7q+32], m2
+    vpalignr                m6, m4, m1, 2
+    vpalignr                m7, m5, m0, 2
+    vpalignr                m9, m8, m2, 2
+    mova [dst24q+stride3q*2+0], m7                     ; 30 22 14 6
+    mova [dst24q+stride3q*2+32], m6
+    mova  [dst8q+stride3q*2+0], m6
+    mova [dst8q+stride3q*2+32], m9
+    vpalignr                m6, m4, m1, 4
+    vpalignr                m7, m5, m0, 4
+    vpalignr                m9, m8, m2, 4
+    mova   [dst24q+stride5q+0], m7                     ; 29 21 13 5
+    mova  [dst24q+stride5q+32], m6
+    mova    [dst8q+stride5q+0], m6
+    mova   [dst8q+stride5q+32], m9
+    vpalignr                m6, m4, m1, 6
+    vpalignr                m7, m5, m0, 6
+    vpalignr                m9, m8, m2, 6
+    mova [dst24q+strideq*4+0 ], m7                     ; 28 20 12 4
+    mova [dst24q+strideq*4+32], m6
+    mova   [dst8q+strideq*4+0], m6
+    mova  [dst8q+strideq*4+32], m9
+    vpalignr                m6, m4, m1, 8
+    vpalignr                m7, m5, m0, 8
+    vpalignr                m9, m8, m2, 8
+    mova  [dst24q+stride3q+0 ], m7                     ; 27 19 11 3
+    mova  [dst24q+stride3q+32], m6
+    mova    [dst8q+stride3q+0], m6
+    mova   [dst8q+stride3q+32], m9
+    vpalignr                m6, m4, m1, 10
+    vpalignr                m7, m5, m0, 10
+    vpalignr                m9, m8, m2, 10
+    mova [dst24q+strideq*2+0 ], m7                     ; 26 18 10 2
+    mova [dst24q+strideq*2+32], m6
+    mova   [dst8q+strideq*2+0], m6
+    mova  [dst8q+strideq*2+32], m9
+    vpalignr                m6, m4, m1, 12
+    vpalignr                m7, m5, m0, 12
+    vpalignr                m9, m8, m2, 12
+    mova   [dst24q+strideq+0 ], m7                     ; 25 17 9 1
+    mova   [dst24q+strideq+32], m6
+    mova     [dst8q+strideq+0], m6
+    mova    [dst8q+strideq+32], m9
+    vpalignr                m6, m4, m1, 14
+    vpalignr                m7, m5, m0, 14
+    vpalignr                m9, m8, m2, 14
+    mova [dst24q+strideq*0+0 ], m7                     ; 24 16 8 0
+    mova [dst24q+strideq*0+32], m6
+    mova   [dst8q+strideq*0+0], m6
+    mova  [dst8q+strideq*0+32], m9
+    mova                    m0, m5
+    mova                    m5, m1
+    mova                    m1, m4
+    mova                    m4, m2
+    mova                    m2, m8
+    mova                    m8, m3
+    sub                 dst24q, stride7q
+    sub                 dst24q, strideq
+    sub                  dst8q, stride7q
+    sub                  dst8q, strideq
+    dec                   cntd
+    jg .loop
+    RET
+%endif
+%endif
+
 %macro VL_FUNCS 1 ; stack_mem_for_32x32_32bit_function
 cglobal vp9_ipred_vl_4x4_16, 2, 4, 3, dst, stride, l, a
     movifnidn               aq, amp
diff --git a/media/ffvpx/libavcodec/x86/vp9itxfm.asm b/media/ffvpx/libavcodec/x86/vp9itxfm.asm
index 57d6d353b..2c63fe514 100644
--- a/media/ffvpx/libavcodec/x86/vp9itxfm.asm
+++ b/media/ffvpx/libavcodec/x86/vp9itxfm.asm
@@ -1581,33 +1581,30 @@ cglobal vp9_idct_idct_16x16_add, 4, 4, 16, dst, stride, block, eob
     VP9_IDCT16_YMM_1D
 
     mova      [blockq+224], m7
-    mova      [blockq+480], m15
-    pxor               m15, m15
 
     ; store
-    VP9_IDCT8_WRITEx2    0,  1, 6, 7, 15, [pw_512], 6
+    VP9_IDCT8_WRITEx2    0,  1, 6, 7, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
-    VP9_IDCT8_WRITEx2    2,  3, 6, 7, 15, [pw_512], 6
+    VP9_IDCT8_WRITEx2    2,  3, 6, 7, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
-    VP9_IDCT8_WRITEx2    4,  5, 6, 7, 15, [pw_512], 6
+    VP9_IDCT8_WRITEx2    4,  5, 6, 7, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
     mova                m6, [blockq+192]
     mova                m7, [blockq+224]
-    SWAP                 0, 15
-    mova               m15, [blockq+480]
-    VP9_IDCT8_WRITEx2    6,  7, 1, 2, 0, [pw_512], 6
+    VP9_IDCT8_WRITEx2    6,  7, 1, 2, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
-    VP9_IDCT8_WRITEx2    8,  9, 1, 2, 0, [pw_512], 6
+    VP9_IDCT8_WRITEx2    8,  9, 1, 2, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
-    VP9_IDCT8_WRITEx2   10, 11, 1, 2, 0, [pw_512], 6
+    VP9_IDCT8_WRITEx2   10, 11, 1, 2, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
-    VP9_IDCT8_WRITEx2   12, 13, 1, 2, 0, [pw_512], 6
+    VP9_IDCT8_WRITEx2   12, 13, 1, 2, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
-    VP9_IDCT8_WRITEx2   14, 15, 1, 2, 0, [pw_512], 6
+    VP9_IDCT8_WRITEx2   14, 15, 1, 2, unused, [pw_512], 6
     lea               dstq, [dstq+2*strideq]
 
     ; at the end of the loop, m0 should still be zero
     ; use that to zero out block coefficients
+    pxor                m0, m0
     ZERO_BLOCK      blockq, 32, 16, m0
     RET
 %endif
@@ -1987,6 +1984,173 @@ IADST16_FN idct,  IDCT16,  iadst, IADST16, avx
 IADST16_FN iadst, IADST16, idct,  IDCT16,  avx
 IADST16_FN iadst, IADST16, iadst, IADST16, avx
 
+; in: data in m[0-15] except m0/m4, which are in [blockq+0] and [blockq+128]
+; out: m[0-15] except m6, which is in [blockq+192]
+; uses blockq as scratch space
+%macro VP9_IADST16_YMM_1D 0
+    mova          [blockq+ 32], m3
+    mova          [blockq+ 64], m7
+    mova          [blockq+ 96], m8
+
+    ; first half of round 1
+    VP9_UNPACK_MULSUB_2D_4X  9,  6,  0,  3, 13160,  9760    ; m9/x=t7[d], m6/x=t6[d]
+    VP9_UNPACK_MULSUB_2D_4X  1, 14,  4,  7,  2404, 16207    ; m1/x=t15[d], m14/x=t14[d]
+    VP9_RND_SH_SUMSUB_BA    14,  6,  7,  3,  8, [pd_8192]   ; m14=t6[w], m6=t14[w]
+    VP9_RND_SH_SUMSUB_BA     1,  9,  4,  0,  8, [pd_8192]   ; m1=t7[w], m9=t15[w]
+
+    VP9_UNPACK_MULSUB_2D_4X 13,  2,  4,  7, 15893,  3981    ; m13/x=t3[d], m2/x=t2[d]
+    VP9_UNPACK_MULSUB_2D_4X  5, 10,  0,  3,  8423, 14053    ; m5/x=t11[d], m10/x=t10[d]
+    VP9_RND_SH_SUMSUB_BA    10,  2,  3,  7,  8, [pd_8192]   ; m10=t2[w], m2=t10[w]
+    VP9_RND_SH_SUMSUB_BA     5, 13,  0,  4,  8, [pd_8192]   ; m5=t3[w], m13=t11[w]
+
+    ; half of round 2 t8-15
+    VP9_UNPACK_MULSUB_2D_4X  2, 13,  4,  7,  9102, 13623    ; m2/x=t11[d], m13/x=t10[d]
+    VP9_UNPACK_MULSUB_2D_4X  9,  6,  3,  0, 13623,  9102    ; m9/x=t14[d], m6/x=t15[d]
+    VP9_RND_SH_SUMSUB_BA     9, 13,  3,  7,  8, [pd_8192]   ; m9=t10[w], m13=t14[w]
+    VP9_RND_SH_SUMSUB_BA     6,  2,  0,  4,  8, [pd_8192]   ; m6=t11[w], m2=t15[w]
+
+    SUMSUB_BA            w, 14, 10,  8                      ; m14=t2, m10=t6
+    SUMSUB_BA            w,  1,  5,  8                      ; m1=t3, m5=t7
+
+    mova                    m0, [blockq+  0]
+    mova                    m4, [blockq+128]
+    mova                    m3, [blockq+ 32]
+    mova                    m7, [blockq+ 64]
+    mova                    m8, [blockq+ 96]
+    mova          [blockq+  0], m1
+    mova          [blockq+128], m14
+    mova          [blockq+ 32], m6
+    mova          [blockq+ 64], m9
+    mova          [blockq+ 96], m10
+
+    ; second half of round 1
+    VP9_UNPACK_MULSUB_2D_4X 15,  0,  1,  9, 16364,   804    ; m15/x=t1[d], m0/x=t0[d]
+    VP9_UNPACK_MULSUB_2D_4X  7,  8, 10,  6, 11003, 12140    ; m7/x=t9[d], m8/x=t8[d]
+    VP9_RND_SH_SUMSUB_BA     8,  0,  6,  9, 14, [pd_8192]   ; m8=t0[w], m0=t8[w]
+    VP9_RND_SH_SUMSUB_BA     7, 15, 10,  1, 14, [pd_8192]   ; m7=t1[w], m15=t9[w]
+
+    VP9_UNPACK_MULSUB_2D_4X 11,  4, 10,  6, 14811,  7005    ; m11/x=t5[d], m4/x=t4[d]
+    VP9_UNPACK_MULSUB_2D_4X  3, 12,  1,  9,  5520, 15426    ; m3/x=t13[d], m12/x=t12[d]
+    VP9_RND_SH_SUMSUB_BA    12,  4,  9,  6, 14, [pd_8192]   ; m12=t4[w], m4=t12[w]
+    VP9_RND_SH_SUMSUB_BA     3, 11,  1, 10, 14, [pd_8192]   ; m3=t5[w], m11=t13[w]
+
+    ; second half of round 2 t8-15
+    VP9_UNPACK_MULSUB_2D_4X  0, 15,  6, 10, 16069,  3196    ; m15/x=t8[d], m0/x=t9[d]
+    VP9_UNPACK_MULSUB_2D_4X 11,  4,  9,  1,  3196, 16069    ; m11/x=t12[d], m4/x=t13[d]
+    VP9_RND_SH_SUMSUB_BA    11, 15,  9, 10, 14, [pd_8192]   ; m11=t8[w], m15=t12[w]
+    VP9_RND_SH_SUMSUB_BA     4,  0,  1,  6, 14, [pd_8192]   ; m4=t9[w], m0=t13[w]
+
+    SUMSUB_BA            w, 12,  8, 14                      ; m12=t0, m8=t4
+    SUMSUB_BA            w,  3,  7, 14                      ; m3=t1, m7=t5
+
+    mova                   m10, [blockq+ 96]
+    mova          [blockq+ 96], m12
+
+    ; round 3
+    VP9_UNPACK_MULSUB_2D_4X 15,  0,  9, 12, 15137,  6270    ; m15/x=t13[d], m0/x=t12[d]
+    VP9_UNPACK_MULSUB_2D_4X  2, 13,  1,  6,  6270, 15137    ; m2/x=t14[d], m13/x=t15[d]
+    VP9_RND_SH_SUMSUB_BA     2,  0,  1, 12, 14, [pd_8192]   ; m2=out2[w], m0=t14a[w]
+    VP9_RND_SH_SUMSUB_BA    13, 15,  6,  9, 14, [pd_8192]
+    PSIGNW                 m13, [pw_m1]                     ; m13=out13[w], m15=t15a[w]
+
+    VP9_UNPACK_MULSUB_2D_4X  8,  7, 12,  9, 15137,  6270    ; m8/x=t5[d], m7/x=t4[d]
+    VP9_UNPACK_MULSUB_2D_4X  5, 10,  1,  6,  6270, 15137    ; m5/x=t6[d], m10/x=t7[d]
+    VP9_RND_SH_SUMSUB_BA     5,  7,  1,  9, 14, [pd_8192]
+    PSIGNW                  m5, [pw_m1]                     ; m5=out3[w], m7=t6[w]
+    VP9_RND_SH_SUMSUB_BA    10,  8,  6, 12, 14, [pd_8192]   ; m10=out12[w], m8=t7[w]
+
+    mova                    m1, [blockq+  0]
+    mova                   m14, [blockq+128]
+    mova                    m6, [blockq+ 32]
+    mova                    m9, [blockq+ 64]
+    mova                   m12, [blockq+ 96]
+    mova          [blockq+  0], m10
+    mova          [blockq+128], m5
+
+    SUMSUB_BA            w, 14, 12,  5                      ; m14=out0, m12=t2a
+    SUMSUB_BA            w,  1,  3,  5
+    PSIGNW                  m1, [pw_m1]                     ; m1=out15, m3=t3a
+
+    SUMSUB_BA            w,  9, 11,  5
+    PSIGNW                  m9, [pw_m1]                     ; m9=out1, m11=t10
+    SUMSUB_BA            w,  6,  4,  5                      ; m6=out14, m4=t11
+
+    VP9_UNPACK_MULSUB_2W_4X  4, 11, 11585, 11585, [pd_8192],  5, 10 ; m4=out9, m11=out6
+    mova                    m5, [blockq+128]
+    mova          [blockq+192], m11
+    PSIGNW                 m15, [pw_m1]
+    VP9_UNPACK_MULSUB_2W_4X 15,  0, 11585, 11585, [pd_8192], 10, 11 ; m15=out5, m0=out10
+
+    PSIGNW                  m3, [pw_m1]
+    VP9_UNPACK_MULSUB_2W_4X  3, 12, 11585, 11585, [pd_8192], 10, 11 ; m3=out7,m12=out8
+    VP9_UNPACK_MULSUB_2W_4X  8,  7, 11585, 11585, [pd_8192], 10, 11 ; m8=out11,m7=out4
+
+    mova                   m10, [blockq+  0]
+
+    SWAP                     0, 14,  6, 11,  8, 12, 10
+    SWAP                     1,  9, 15,  4,  7,  3,  5
+    SWAP                     5,  9, 15
+%endmacro
+
+%if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+%macro IADST16_YMM_FN 4
+INIT_YMM avx2
+cglobal vp9_%1_%3_16x16_add, 4, 4, 16, dst, stride, block, eob
+    mova                m1, [blockq+ 32]
+    mova                m2, [blockq+ 64]
+    mova                m3, [blockq+ 96]
+    mova                m5, [blockq+160]
+    mova                m6, [blockq+192]
+    mova                m7, [blockq+224]
+    mova                m8, [blockq+256]
+    mova                m9, [blockq+288]
+    mova               m10, [blockq+320]
+    mova               m11, [blockq+352]
+    mova               m12, [blockq+384]
+    mova               m13, [blockq+416]
+    mova               m14, [blockq+448]
+    mova               m15, [blockq+480]
+
+    VP9_%2_YMM_1D
+    TRANSPOSE16x16W      0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, \
+                         [blockq+192], [blockq+128], 1
+    mova      [blockq+  0], m0
+    VP9_%4_YMM_1D
+
+    mova      [blockq+224], m7
+
+    ; store
+    VP9_IDCT8_WRITEx2    0,  1, 6, 7, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    VP9_IDCT8_WRITEx2    2,  3, 6, 7, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    VP9_IDCT8_WRITEx2    4,  5, 6, 7, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    mova                m6, [blockq+192]
+    mova                m7, [blockq+224]
+    VP9_IDCT8_WRITEx2    6,  7, 1, 2, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    VP9_IDCT8_WRITEx2    8,  9, 1, 2, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    VP9_IDCT8_WRITEx2   10, 11, 1, 2, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    VP9_IDCT8_WRITEx2   12, 13, 1, 2, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+    VP9_IDCT8_WRITEx2   14, 15, 1, 2, unused, [pw_512], 6
+    lea               dstq, [dstq+2*strideq]
+
+    ; at the end of the loop, m0 should still be zero
+    ; use that to zero out block coefficients
+    pxor                m0, m0
+    ZERO_BLOCK      blockq, 32, 16, m0
+    RET
+%endmacro
+
+IADST16_YMM_FN idct,  IDCT16,  iadst, IADST16
+IADST16_YMM_FN iadst, IADST16, idct,  IDCT16
+IADST16_YMM_FN iadst, IADST16, iadst, IADST16
+%endif
+
 ;---------------------------------------------------------------------------------------------
 ; void vp9_idct_idct_32x32_add_<opt>(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob);
 ;---------------------------------------------------------------------------------------------
diff --git a/media/ffvpx/libavcodec/x86/vp9mc.asm b/media/ffvpx/libavcodec/x86/vp9mc.asm
index 9152ba541..f64161b2c 100644
--- a/media/ffvpx/libavcodec/x86/vp9mc.asm
+++ b/media/ffvpx/libavcodec/x86/vp9mc.asm
@@ -1,5 +1,5 @@
 ;******************************************************************************
-;* VP9 MC SIMD optimizations
+;* VP9 motion compensation SIMD optimizations
 ;*
 ;* Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
 ;*
@@ -440,9 +440,8 @@ cglobal vp9_%1_8tap_1d_v_ %+ %%px %+ _8, 4, 7, 11, dst, dstride, src, sstride, f
     mova       m10, [filteryq+96]
 %endif
 .loop:
-    ; FIXME maybe reuse loads from previous rows, or just
-    ; more generally unroll this to prevent multiple loads of
-    ; the same data?
+    ; FIXME maybe reuse loads from previous rows, or just more generally
+    ; unroll this to prevent multiple loads of the same data?
     movh        m0, [srcq]
     movh        m1, [srcq+sstrideq]
     movh        m2, [srcq+sstrideq*2]