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-rw-r--r--media/libvpx/vp8/encoder/encodeframe.c1427
1 files changed, 1427 insertions, 0 deletions
diff --git a/media/libvpx/vp8/encoder/encodeframe.c b/media/libvpx/vp8/encoder/encodeframe.c
new file mode 100644
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--- /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;
+}