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Pasi Keranen authored
Headers corrected. Bad examples removed. 3rd party code moved to it's own folder. Change-Id: Ia8def81fb45f4f6fe99611e92b128f0c72b80a91 Reviewed-by:
Tomi Korpipää <tomi.korpipaa@digia.com> Reviewed-by:
Pasi Keränen <pasi.keranen@digia.com>
a294e8be
/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */#include "vpx_ports/config.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 "vp8/common/invtrans.h"#include "rdopt.h"#include "vp8/common/findnearmv.h"#include "vp8/common/reconintra.h"#include "vp8/common/seg_common.h"#include <stdio.h>#include <math.h>#include <limits.h>#include "vp8/common/subpixel.h"#include "vpx_ports/vpx_timer.h"#include "vp8/common/pred_common.h"#define DBG_PRNT_SEGMAP 0#if CONFIG_NEWBESTREFMV#include "vp8/common/mvref_common.h"#endif#if CONFIG_RUNTIME_CPU_DETECT#define RTCD(x) &cpi->common.rtcd.x#define IF_RTCD(x) (x)#else#define RTCD(x) NULL#define IF_RTCD(x) NULL#endif#ifdef ENC_DEBUGint enc_debug = 0;int mb_row_debug, mb_col_debug;#endifextern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run);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 mb_row, int count);int64_t vp8_rd_pick_inter_mode_sb(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion);extern void vp8cx_pick_mode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *r, int *d);7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
void vp8_build_block_offsets(MACROBLOCK *x);
void vp8_setup_block_ptrs(MACROBLOCK *x);
void vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
int recon_yoffset, int recon_uvoffset,
int output_enabled);
void vp8cx_encode_inter_superblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
int recon_yoffset, int recon_uvoffset, int mb_col, int mb_row);
void vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x,
TOKENEXTRA **t, int output_enabled);
void vp8cx_encode_intra_super_block(VP8_COMP *cpi,
MACROBLOCK *x,
TOKENEXTRA **t, int mb_col);
static void adjust_act_zbin(VP8_COMP *cpi, MACROBLOCK *x);
extern void vp8_stuff_mb_8x8(VP8_COMP *cpi,
MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run);
#ifdef MODE_STATS
unsigned int inter_y_modes[MB_MODE_COUNT];
unsigned int inter_uv_modes[VP8_UV_MODES];
unsigned int inter_b_modes[B_MODE_COUNT];
unsigned int y_modes[VP8_YMODES];
unsigned int i8x8_modes[VP8_I8X8_MODES];
unsigned int uv_modes[VP8_UV_MODES];
unsigned int uv_modes_y[VP8_YMODES][VP8_UV_MODES];
unsigned int b_modes[B_MODE_COUNT];
#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;
/* 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 = VARIANCE_INVOKE(&cpi->rtcd.variance, var16x16)(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) {
141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
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
vpx_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
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// 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
281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350
// 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
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(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
351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420
}
// 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 update_state(VP8_COMP *cpi, MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) {
int i;
MACROBLOCKD *xd = &x->e_mbd;
MODE_INFO *mi = &ctx->mic;
MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
int mb_mode = mi->mbmi.mode;
int mb_mode_index = ctx->best_mode_index;
#if CONFIG_DEBUG
assert(mb_mode < MB_MODE_COUNT);
assert(mb_mode_index < MAX_MODES);
assert(mi->mbmi.ref_frame < MAX_REF_FRAMES);
#endif
// Restore the coding context of the MB to that that was in place
// when the mode was picked for it
vpx_memcpy(xd->mode_info_context, mi, sizeof(MODE_INFO));
#if CONFIG_SUPERBLOCKS
if (mi->mbmi.encoded_as_sb) {
vpx_memcpy(xd->mode_info_context + 1, mi, sizeof(MODE_INFO));
vpx_memcpy(xd->mode_info_context + cpi->common.mode_info_stride, mi, sizeof(MODE_INFO));
vpx_memcpy(xd->mode_info_context + cpi->common.mode_info_stride + 1, mi, sizeof(MODE_INFO));
}
#endif
if (mb_mode == B_PRED) {
for (i = 0; i < 16; i++) {
xd->block[i].bmi.as_mode = xd->mode_info_context->bmi[i].as_mode;
assert(xd->block[i].bmi.as_mode.first < MB_MODE_COUNT);
}
} else if (mb_mode == I8X8_PRED) {
for (i = 0; i < 16; i++) {
xd->block[i].bmi = xd->mode_info_context->bmi[i];
}
} else if (mb_mode == SPLITMV) {
vpx_memcpy(x->partition_info, &ctx->partition_info,
sizeof(PARTITION_INFO));
mbmi->mv[0].as_int = x->partition_info->bmi[15].mv.as_int;
mbmi->mv[1].as_int = x->partition_info->bmi[15].second_mv.as_int;
}
if (cpi->common.frame_type == KEY_FRAME) {
421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490
// Restore the coding modes to that held in the coding context
// if (mb_mode == B_PRED)
// for (i = 0; i < 16; i++)
// {
// xd->block[i].bmi.as_mode =
// xd->mode_info_context->bmi[i].as_mode;
// assert(xd->mode_info_context->bmi[i].as_mode < MB_MODE_COUNT);
// }
#if CONFIG_INTERNAL_STATS
static const int kf_mode_index[] = {
THR_DC /*DC_PRED*/,
THR_V_PRED /*V_PRED*/,
THR_H_PRED /*H_PRED*/,
THR_D45_PRED /*D45_PRED*/,
THR_D135_PRED /*D135_PRED*/,
THR_D117_PRED /*D117_PRED*/,
THR_D153_PRED /*D153_PRED*/,
THR_D27_PRED /*D27_PRED*/,
THR_D63_PRED /*D63_PRED*/,
THR_TM /*TM_PRED*/,
THR_I8X8_PRED /*I8X8_PRED*/,
THR_B_PRED /*B_PRED*/,
};
cpi->mode_chosen_counts[kf_mode_index[mb_mode]]++;
#endif
} else {
/*
// Reduce the activation RD thresholds for the best choice mode
if ((cpi->rd_baseline_thresh[mb_mode_index] > 0) &&
(cpi->rd_baseline_thresh[mb_mode_index] < (INT_MAX >> 2)))
{
int best_adjustment = (cpi->rd_thresh_mult[mb_mode_index] >> 2);
cpi->rd_thresh_mult[mb_mode_index] =
(cpi->rd_thresh_mult[mb_mode_index]
>= (MIN_THRESHMULT + best_adjustment)) ?
cpi->rd_thresh_mult[mb_mode_index] - best_adjustment :
MIN_THRESHMULT;
cpi->rd_threshes[mb_mode_index] =
(cpi->rd_baseline_thresh[mb_mode_index] >> 7)
* cpi->rd_thresh_mult[mb_mode_index];
}
*/
// Note how often each mode chosen as best
cpi->mode_chosen_counts[mb_mode_index]++;
rd_update_mvcount(cpi, x, &ctx->best_ref_mv, &ctx->second_best_ref_mv);
cpi->prediction_error += ctx->distortion;
cpi->intra_error += ctx->intra_error;
cpi->rd_comp_pred_diff[0] += ctx->single_pred_diff;
cpi->rd_comp_pred_diff[1] += ctx->comp_pred_diff;
cpi->rd_comp_pred_diff[2] += ctx->hybrid_pred_diff;
}
}
static void pick_mb_modes(VP8_COMP *cpi,
VP8_COMMON *cm,
int mb_row,
int mb_col,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp,
int *totalrate,
int *totaldist) {
int i;
int map_index;
int recon_yoffset, recon_uvoffset;
491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560
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;
ENTROPY_CONTEXT_PLANES left_context[2];
ENTROPY_CONTEXT_PLANES above_context[2];
ENTROPY_CONTEXT_PLANES *initial_above_context_ptr = cm->above_context
+ mb_col;
// Offsets to move pointers from MB to MB within a SB in raster order
int row_delta[4] = { 0, +1, 0, -1};
int col_delta[4] = { +1, -1, +1, +1};
/* Function should not modify L & A contexts; save and restore on exit */
vpx_memcpy(left_context,
cm->left_context,
sizeof(left_context));
vpx_memcpy(above_context,
initial_above_context_ptr,
sizeof(above_context));
/* Encode MBs in raster order within the SB */
for (i = 0; i < 4; i++) {
int dy = row_delta[i];
int dx = col_delta[i];
int offset_unextended = dy * cm->mb_cols + dx;
int offset_extended = dy * xd->mode_info_stride + dx;
MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
// TODO Many of the index items here can be computed more efficiently!
if ((mb_row >= cm->mb_rows) || (mb_col >= cm->mb_cols)) {
// MB lies outside frame, move on
mb_row += dy;
mb_col += dx;
// Update pointers
x->src.y_buffer += 16 * (dx + dy * x->src.y_stride);
x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride);
x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride);
x->gf_active_ptr += offset_unextended;
x->partition_info += offset_extended;
xd->mode_info_context += offset_extended;
xd->prev_mode_info_context += offset_extended;
#if CONFIG_DEBUG
assert((xd->prev_mode_info_context - cpi->common.prev_mip) ==
(xd->mode_info_context - cpi->common.mip));
#endif
continue;
}
// Index of the MB in the SB 0..3
xd->mb_index = i;
map_index = (mb_row * cpi->common.mb_cols) + mb_col;
x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
// set above context pointer
xd->above_context = cm->above_context + mb_col;
// Restore the appropriate left context depending on which
// row in the SB the MB is situated
xd->left_context = cm->left_context + (i >> 1);
// Set up distance of MB to edge of frame in 1/8th pel units
xd->mb_to_top_edge = -((mb_row * 16) << 3);
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630
// Set up limit values for MV components to prevent them from
// extending beyond the UMV borders assuming 16x16 block size
x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_row_max = ((cm->mb_rows - mb_row) * 16 +
(VP8BORDERINPIXELS - 16 - INTERP_EXTEND));
x->mv_col_max = ((cm->mb_cols - mb_col) * 16 +
(VP8BORDERINPIXELS - 16 - INTERP_EXTEND));
xd->up_available = (mb_row != 0);
xd->left_available = (mb_col != 0);
recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8);
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;
// Copy current MB to a work buffer
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(x->src.y_buffer,
x->src.y_stride,
x->thismb, 16);
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp8_activity_masking(cpi, x);
// Is segmentation enabled
if (xd->segmentation_enabled) {
// Code to set segment id in xd->mbmi.segment_id
if (xd->update_mb_segmentation_map)
mbmi->segment_id = cpi->segmentation_map[map_index];
else
mbmi->segment_id = cm->last_frame_seg_map[map_index];
if (mbmi->segment_id > 3)
mbmi->segment_id = 0;
vp8cx_mb_init_quantizer(cpi, x);
} else
// Set to Segment 0 by default
mbmi->segment_id = 0;
x->active_ptr = cpi->active_map + map_index;
/* force 4x4 transform for mode selection */
mbmi->txfm_size = TX_4X4; // TODO IS this right??
#if CONFIG_SUPERBLOCKS
xd->mode_info_context->mbmi.encoded_as_sb = 0;
#endif
cpi->update_context = 0; // TODO Do we need this now??
// Find best coding mode & reconstruct the MB so it is available
// as a predictor for MBs that follow in the SB
if (cm->frame_type == KEY_FRAME) {
int r, d;
vp8_rd_pick_intra_mode(cpi, x, &r, &d);
*totalrate += r;
*totaldist += d;
// Dummy encode, do not do the tokenization
vp8cx_encode_intra_macro_block(cpi, x, tp, 0);
// Note the encoder may have changed the segment_id
// Save the coding context
631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700
vpx_memcpy(&x->mb_context[i].mic, xd->mode_info_context,
sizeof(MODE_INFO));
} else {
int seg_id, r, d;
if (xd->segmentation_enabled && cpi->seg0_cnt > 0 &&
!segfeature_active(xd, 0, SEG_LVL_REF_FRAME) &&
segfeature_active(xd, 1, SEG_LVL_REF_FRAME) &&
check_segref(xd, 1, INTRA_FRAME) +
check_segref(xd, 1, LAST_FRAME) +
check_segref(xd, 1, GOLDEN_FRAME) +
check_segref(xd, 1, ALTREF_FRAME) == 1) {
cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt;
} else {
cpi->seg0_progress = (((mb_col & ~1) * 2 + (mb_row & ~1) * cm->mb_cols + i) << 16) / cm->MBs;
}
vp8cx_pick_mode_inter_macroblock(cpi, x, recon_yoffset,
recon_uvoffset, &r, &d);
*totalrate += r;
*totaldist += d;
// Dummy encode, do not do the tokenization
vp8cx_encode_inter_macroblock(cpi, x, tp,
recon_yoffset, recon_uvoffset, 0);
seg_id = mbmi->segment_id;
if (cpi->mb.e_mbd.segmentation_enabled && seg_id == 0) {
cpi->seg0_idx++;
}
if (!xd->segmentation_enabled ||
!segfeature_active(xd, seg_id, SEG_LVL_REF_FRAME) ||
check_segref(xd, seg_id, INTRA_FRAME) +
check_segref(xd, seg_id, LAST_FRAME) +
check_segref(xd, seg_id, GOLDEN_FRAME) +
check_segref(xd, seg_id, ALTREF_FRAME) > 1) {
// Get the prediction context and status
int pred_flag = get_pred_flag(xd, PRED_REF);
int pred_context = get_pred_context(cm, xd, PRED_REF);
// Count prediction success
cpi->ref_pred_count[pred_context][pred_flag]++;
}
}
// Next MB
mb_row += dy;
mb_col += dx;
x->src.y_buffer += 16 * (dx + dy * x->src.y_stride);
x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride);
x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride);
x->gf_active_ptr += offset_unextended;
x->partition_info += offset_extended;
xd->mode_info_context += offset_extended;
xd->prev_mode_info_context += offset_extended;
#if CONFIG_DEBUG
assert((xd->prev_mode_info_context - cpi->common.prev_mip) ==
(xd->mode_info_context - cpi->common.mip));
#endif
}
/* Restore L & A coding context to those in place on entry */
vpx_memcpy(cm->left_context,
left_context,
sizeof(left_context));
vpx_memcpy(initial_above_context_ptr,
above_context,
701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770
sizeof(above_context));
}
#if CONFIG_SUPERBLOCKS
static void pick_sb_modes (VP8_COMP *cpi,
VP8_COMMON *cm,
int mb_row,
int mb_col,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp,
int *totalrate,
int *totaldist)
{
int map_index;
int recon_yoffset, recon_uvoffset;
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;
ENTROPY_CONTEXT_PLANES left_context[2];
ENTROPY_CONTEXT_PLANES above_context[2];
ENTROPY_CONTEXT_PLANES *initial_above_context_ptr = cm->above_context
+ mb_col;
/* Function should not modify L & A contexts; save and restore on exit */
vpx_memcpy (left_context,
cm->left_context,
sizeof(left_context));
vpx_memcpy (above_context,
initial_above_context_ptr,
sizeof(above_context));
map_index = (mb_row * cpi->common.mb_cols) + mb_col;
x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
/* set above context pointer */
xd->above_context = cm->above_context + mb_col;
/* Restore the appropriate left context depending on which
* row in the SB the MB is situated */
xd->left_context = cm->left_context;
// Set up distance of MB to edge of frame in 1/8th pel units
xd->mb_to_top_edge = -((mb_row * 16) << 3);
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
/* Set up limit values for MV components to prevent them from
* extending beyond the UMV borders assuming 16x16 block size */
x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_row_max = ((cm->mb_rows - mb_row) * 16 +
(VP8BORDERINPIXELS - 32 - INTERP_EXTEND));
x->mv_col_max = ((cm->mb_cols - mb_col) * 16 +
(VP8BORDERINPIXELS - 32 - INTERP_EXTEND));
xd->up_available = (mb_row != 0);
xd->left_available = (mb_col != 0);
recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8);
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;
#if 0 // FIXME
/* Copy current MB to a work buffer */
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(x->src.y_buffer,
771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840
x->src.y_stride,
x->thismb, 16);
#endif
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp8_activity_masking(cpi, x);
/* Is segmentation enabled */
if (xd->segmentation_enabled)
{
/* Code to set segment id in xd->mbmi.segment_id */
if (xd->update_mb_segmentation_map)
xd->mode_info_context->mbmi.segment_id =
cpi->segmentation_map[map_index] &&
cpi->segmentation_map[map_index + 1] &&
cpi->segmentation_map[map_index + cm->mb_cols] &&
cpi->segmentation_map[map_index + cm->mb_cols + 1];
else
xd->mode_info_context->mbmi.segment_id =
cm->last_frame_seg_map[map_index] &&
cm->last_frame_seg_map[map_index + 1] &&
cm->last_frame_seg_map[map_index + cm->mb_cols] &&
cm->last_frame_seg_map[map_index + cm->mb_cols + 1];
if (xd->mode_info_context->mbmi.segment_id > 3)
xd->mode_info_context->mbmi.segment_id = 0;
vp8cx_mb_init_quantizer(cpi, x);
}
else
/* Set to Segment 0 by default */
xd->mode_info_context->mbmi.segment_id = 0;
x->active_ptr = cpi->active_map + map_index;
cpi->update_context = 0; // TODO Do we need this now??
/* Find best coding mode & reconstruct the MB so it is available
* as a predictor for MBs that follow in the SB */
if (cm->frame_type == KEY_FRAME)
{
vp8_rd_pick_intra_mode_sb(cpi, x,
totalrate,
totaldist);
/* Save the coding context */
vpx_memcpy(&x->sb_context[0].mic, xd->mode_info_context,
sizeof(MODE_INFO));
}
else
{
if (xd->segmentation_enabled && cpi->seg0_cnt > 0 &&
!segfeature_active( xd, 0, SEG_LVL_REF_FRAME ) &&
segfeature_active( xd, 1, SEG_LVL_REF_FRAME ) &&
check_segref(xd, 1, INTRA_FRAME) +
check_segref(xd, 1, LAST_FRAME) +
check_segref(xd, 1, GOLDEN_FRAME) +
check_segref(xd, 1, ALTREF_FRAME) == 1)
{
cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt;
}
else
{
cpi->seg0_progress =
(((mb_col & ~1) * 2 + (mb_row & ~1) * cm->mb_cols) << 16) / cm->MBs;
}
vp8_rd_pick_inter_mode_sb(cpi, x,
recon_yoffset,
recon_uvoffset,
totalrate,
841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910
totaldist);
}
/* Restore L & A coding context to those in place on entry */
vpx_memcpy (cm->left_context,
left_context,
sizeof(left_context));
vpx_memcpy (initial_above_context_ptr,
above_context,
sizeof(above_context));
}
#endif
static void encode_sb(VP8_COMP *cpi,
VP8_COMMON *cm,
int mbrow,
int mbcol,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp) {
int i;
int map_index;
int mb_row, mb_col;
int recon_yoffset, recon_uvoffset;
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 row_delta[4] = { 0, +1, 0, -1};
int col_delta[4] = { +1, -1, +1, +1};
mb_row = mbrow;
mb_col = mbcol;
/* Encode MBs in raster order within the SB */
for (i = 0; i < 4; i++) {
int dy = row_delta[i];
int dx = col_delta[i];
int offset_extended = dy * xd->mode_info_stride + dx;
int offset_unextended = dy * cm->mb_cols + dx;
MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
if ((mb_row >= cm->mb_rows) || (mb_col >= cm->mb_cols)) {
// MB lies outside frame, move on
mb_row += dy;
mb_col += dx;
x->src.y_buffer += 16 * (dx + dy * x->src.y_stride);
x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride);
x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride);
x->gf_active_ptr += offset_unextended;
x->partition_info += offset_extended;
xd->mode_info_context += offset_extended;
xd->prev_mode_info_context += offset_extended;
#if CONFIG_DEBUG
assert((xd->prev_mode_info_context - cpi->common.prev_mip) ==
(xd->mode_info_context - cpi->common.mip));
#endif
continue;
}
xd->mb_index = i;
#ifdef ENC_DEBUG
enc_debug = (cpi->common.current_video_frame == 0 &&
mb_row == 0 && mb_col == 0);
mb_col_debug = mb_col;
mb_row_debug = mb_row;
911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980
#endif
// Restore MB state to that when it was picked
#if CONFIG_SUPERBLOCKS
if (xd->mode_info_context->mbmi.encoded_as_sb) {
update_state(cpi, x, &x->sb_context[i]);
cpi->sb_count++;
} else
#endif
update_state(cpi, x, &x->mb_context[i]);
map_index = (mb_row * cpi->common.mb_cols) + mb_col;
x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
// reset above block coeffs
xd->above_context = cm->above_context + mb_col;
xd->left_context = cm->left_context + (i >> 1);
// Set up distance of MB to edge of the frame in 1/8th pel units
xd->mb_to_top_edge = -((mb_row * 16) << 3);
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
#if CONFIG_SUPERBLOCKS
if (xd->mode_info_context->mbmi.encoded_as_sb) {
// Set up limit values for MV components to prevent them from
// extending beyond the UMV borders assuming 32x32 block size
x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_row_max = ((cm->mb_rows - mb_row) * 16 +
(VP8BORDERINPIXELS - 32 - INTERP_EXTEND));
x->mv_col_max = ((cm->mb_cols - mb_col) * 16 +
(VP8BORDERINPIXELS - 32 - INTERP_EXTEND));
} else {
#endif
// Set up limit values for MV components to prevent them from
// extending beyond the UMV borders assuming 16x16 block size
x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND);
x->mv_row_max = ((cm->mb_rows - mb_row) * 16 +
(VP8BORDERINPIXELS - 16 - INTERP_EXTEND));
x->mv_col_max = ((cm->mb_cols - mb_col) * 16 +
(VP8BORDERINPIXELS - 16 - INTERP_EXTEND));
#if CONFIG_SUPERBLOCKS
}
#endif
xd->up_available = (mb_row != 0);
xd->left_available = (mb_col != 0);
recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8);
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;
// Copy current MB to a work buffer
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(x->src.y_buffer,
x->src.y_stride,
x->thismb, 16);
if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp8_activity_masking(cpi, x);
// Is segmentation enabled
if (xd->segmentation_enabled) {
vp8cx_mb_init_quantizer(cpi, x);
}
981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050
x->active_ptr = cpi->active_map + map_index;
cpi->update_context = 0;
if (cm->frame_type == KEY_FRAME) {
#if CONFIG_SUPERBLOCKS
if (xd->mode_info_context->mbmi.encoded_as_sb)
vp8cx_encode_intra_super_block(cpi, x, tp, mb_col);
else
#endif
vp8cx_encode_intra_macro_block(cpi, x, tp, 1);
// Note the encoder may have changed the segment_id
#ifdef MODE_STATS
y_modes[mbmi->mode]++;
#endif
} else {
unsigned char *segment_id;
int seg_ref_active;
if (xd->mode_info_context->mbmi.ref_frame) {
unsigned char pred_context;
pred_context = get_pred_context(cm, xd, PRED_COMP);
if (xd->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME)
cpi->single_pred_count[pred_context]++;
else
cpi->comp_pred_count[pred_context]++;
}
#if CONFIG_SUPERBLOCKS
if (xd->mode_info_context->mbmi.encoded_as_sb)
vp8cx_encode_inter_superblock(cpi, x, tp, recon_yoffset, recon_uvoffset, mb_col, mb_row);
else
#endif
vp8cx_encode_inter_macroblock(cpi, x, tp,
recon_yoffset, recon_uvoffset, 1);
// Note the encoder may have changed the segment_id
#ifdef MODE_STATS
inter_y_modes[mbmi->mode]++;
if (mbmi->mode == SPLITMV) {
int b;
for (b = 0; b < x->partition_info->count; b++) {
inter_b_modes[x->partition_info->bmi[b].mode]++;
}
}
#endif
// If we have just a single reference frame coded for a segment then
// exclude from the reference frame counts used to work out
// probabilities. NOTE: At the moment we dont support custom trees
// for the reference frame coding for each segment but this is a
// possible future action.
segment_id = &mbmi->segment_id;
seg_ref_active = segfeature_active(xd, *segment_id, SEG_LVL_REF_FRAME);
if (!seg_ref_active ||
((check_segref(xd, *segment_id, INTRA_FRAME) +
check_segref(xd, *segment_id, LAST_FRAME) +
check_segref(xd, *segment_id, GOLDEN_FRAME) +
check_segref(xd, *segment_id, ALTREF_FRAME)) > 1)) {
{
cpi->count_mb_ref_frame_usage[mbmi->ref_frame]++;
}
}
1051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120
// Count of last ref frame 0,0 usage
if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME))
cpi->inter_zz_count++;
}
// TODO Partitioning is broken!
cpi->tplist[mb_row].stop = *tp;
#if CONFIG_SUPERBLOCKS
if (xd->mode_info_context->mbmi.encoded_as_sb) {
x->src.y_buffer += 32;
x->src.u_buffer += 16;
x->src.v_buffer += 16;
x->gf_active_ptr += 2;
x->partition_info += 2;
xd->mode_info_context += 2;
xd->prev_mode_info_context += 2;
break;
}
#endif
// Next MB
mb_row += dy;
mb_col += dx;
x->src.y_buffer += 16 * (dx + dy * x->src.y_stride);
x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride);
x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride);
x->gf_active_ptr += offset_unextended;
x->partition_info += offset_extended;
xd->mode_info_context += offset_extended;
xd->prev_mode_info_context += offset_extended;
#if CONFIG_DEBUG
assert((xd->prev_mode_info_context - cpi->common.prev_mip) ==
(xd->mode_info_context - cpi->common.mip));
#endif
}
// debug output
#if DBG_PRNT_SEGMAP
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "\n");
fclose(statsfile);
}
#endif
}
static
void encode_sb_row(VP8_COMP *cpi,
VP8_COMMON *cm,
int mb_row,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp,
int *totalrate) {
int mb_col;
int mb_cols = cm->mb_cols;
// Initialize the left context for the new SB row
vpx_memset(cm->left_context, 0, sizeof(cm->left_context));
// Code each SB in the row
for (mb_col = 0; mb_col < mb_cols; mb_col += 2) {
1121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190
int mb_rate = 0, mb_dist = 0;
#if CONFIG_SUPERBLOCKS
int sb_rate = INT_MAX, sb_dist;
#endif
#if CONFIG_DEBUG
MODE_INFO *mic = xd->mode_info_context;
PARTITION_INFO *pi = x->partition_info;
signed char *gfa = x->gf_active_ptr;
unsigned char *yb = x->src.y_buffer;
unsigned char *ub = x->src.u_buffer;
unsigned char *vb = x->src.v_buffer;
#endif
#if CONFIG_SUPERBLOCKS
// Pick modes assuming the SB is coded as 4 independent MBs
xd->mode_info_context->mbmi.encoded_as_sb = 0;
#endif
pick_mb_modes(cpi, cm, mb_row, mb_col, x, xd, tp, &mb_rate, &mb_dist);
#if CONFIG_SUPERBLOCKS
mb_rate += vp8_cost_bit(cm->sb_coded, 0);
#endif
x->src.y_buffer -= 32;
x->src.u_buffer -= 16;
x->src.v_buffer -= 16;
x->gf_active_ptr -= 2;
x->partition_info -= 2;
xd->mode_info_context -= 2;
xd->prev_mode_info_context -= 2;
#if CONFIG_DEBUG
assert(x->gf_active_ptr == gfa);
assert(x->partition_info == pi);
assert(xd->mode_info_context == mic);
assert(x->src.y_buffer == yb);
assert(x->src.u_buffer == ub);
assert(x->src.v_buffer == vb);
#endif
#if CONFIG_SUPERBLOCKS
if (!((( mb_cols & 1) && mb_col == mb_cols - 1) ||
((cm->mb_rows & 1) && mb_row == cm->mb_rows - 1))) {
/* Pick a mode assuming that it applies to all 4 of the MBs in the SB */
xd->mode_info_context->mbmi.encoded_as_sb = 1;
pick_sb_modes(cpi, cm, mb_row, mb_col, x, xd, tp, &sb_rate, &sb_dist);
sb_rate += vp8_cost_bit(cm->sb_coded, 1);
}
/* Decide whether to encode as a SB or 4xMBs */
if (sb_rate < INT_MAX &&
RDCOST(x->rdmult, x->rddiv, sb_rate, sb_dist) <
RDCOST(x->rdmult, x->rddiv, mb_rate, mb_dist)) {
xd->mode_info_context->mbmi.encoded_as_sb = 1;
xd->mode_info_context[1].mbmi.encoded_as_sb = 1;
xd->mode_info_context[cm->mode_info_stride].mbmi.encoded_as_sb = 1;
xd->mode_info_context[1 + cm->mode_info_stride].mbmi.encoded_as_sb = 1;
*totalrate += sb_rate;
} else
#endif
{
#if CONFIG_SUPERBLOCKS
xd->mode_info_context->mbmi.encoded_as_sb = 0;
if (cm->mb_cols - 1 > mb_col)
xd->mode_info_context[1].mbmi.encoded_as_sb = 0;
if (cm->mb_rows - 1 > mb_row) {
xd->mode_info_context[cm->mode_info_stride].mbmi.encoded_as_sb = 0;
if (cm->mb_cols - 1 > mb_col)
xd->mode_info_context[1 + cm->mode_info_stride].mbmi.encoded_as_sb = 0;
1191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260
}
#endif
*totalrate += mb_rate;
}
/* Encode SB using best computed mode(s) */
encode_sb(cpi, cm, mb_row, mb_col, x, xd, tp);
#if CONFIG_DEBUG
assert(x->gf_active_ptr == gfa + 2);
assert(x->partition_info == pi + 2);
assert(xd->mode_info_context == mic + 2);
assert(x->src.y_buffer == yb + 32);
assert(x->src.u_buffer == ub + 16);
assert(x->src.v_buffer == vb + 16);
#endif
}
// this is to account for the border
x->gf_active_ptr += mb_cols - (mb_cols & 0x1);
x->partition_info += xd->mode_info_stride + 1 - (mb_cols & 0x1);
xd->mode_info_context += xd->mode_info_stride + 1 - (mb_cols & 0x1);
xd->prev_mode_info_context += xd->mode_info_stride + 1 - (mb_cols & 0x1);
#if CONFIG_DEBUG
assert((xd->prev_mode_info_context - cpi->common.prev_mip) ==
(xd->mode_info_context - cpi->common.mip));
#endif
}
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;
cpi->seg0_idx = 0;
vpx_memset(cpi->ref_pred_count, 0, sizeof(cpi->ref_pred_count));
x->partition_info = x->pi;
xd->mode_info_context = cm->mi;
xd->mode_info_stride = cm->mode_info_stride;
xd->prev_mode_info_context = cm->prev_mi;
xd->frame_type = cm->frame_type;
xd->frames_since_golden = cm->frames_since_golden;
xd->frames_till_alt_ref_frame = cm->frames_till_alt_ref_frame;
// 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);
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vp8_setup_block_dptrs(&x->e_mbd);
vp8_setup_block_ptrs(x);
xd->mode_info_context->mbmi.mode = DC_PRED;
xd->mode_info_context->mbmi.uv_mode = DC_PRED;
vp8_zero(cpi->count_mb_ref_frame_usage)
vp8_zero(cpi->bmode_count)
vp8_zero(cpi->ymode_count)
vp8_zero(cpi->i8x8_mode_count)
vp8_zero(cpi->y_uv_mode_count)
vp8_zero(cpi->sub_mv_ref_count)
vp8_zero(cpi->mbsplit_count)
vp8_zero(cpi->common.fc.mv_ref_ct)
vp8_zero(cpi->common.fc.mv_ref_ct_a)
#if CONFIG_SUPERBLOCKS
vp8_zero(cpi->sb_ymode_count)
cpi->sb_count = 0;
#endif
// vp8_zero(cpi->uv_mode_count)
vpx_memset(cm->above_context, 0,
sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols);
xd->fullpixel_mask = 0xffffffff;
if (cm->full_pixel)
xd->fullpixel_mask = 0xfffffff8;
}
static void encode_frame_internal(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 totalrate;
// Compute a modified set of reference frame probabilities to use when
// prediction fails. These are based on the current general estimates for
// this frame which may be updated with each iteration of the recode loop.
compute_mod_refprobs(cm);
#if CONFIG_NEW_MVREF
// temp stats reset
vp8_zero( cpi->best_ref_index_counts );
#endif
// debug output
#if DBG_PRNT_SEGMAP
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "\n");
fclose(statsfile);
}
#endif
totalrate = 0;
// Functions setup for all frame types so we can use MC in AltRef
vp8_setup_interp_filters(xd, cm->mcomp_filter_type, cm);
// Reset frame count of inter 0,0 motion vector usage.
cpi->inter_zz_count = 0;
cpi->prediction_error = 0;
cpi->intra_error = 0;
cpi->skip_true_count[0] = cpi->skip_true_count[1] = cpi->skip_true_count[2] = 0;
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cpi->skip_false_count[0] = cpi->skip_false_count[1] = cpi->skip_false_count[2] = 0;
#if CONFIG_PRED_FILTER
if (cm->current_video_frame == 0) {
// Initially assume that we'll signal the prediction filter
// state at the frame level and that it is off.
cpi->common.pred_filter_mode = 0;
cpi->common.prob_pred_filter_off = 128;
}
cpi->pred_filter_on_count = 0;
cpi->pred_filter_off_count = 0;
#endif
#if CONFIG_SWITCHABLE_INTERP
vp8_zero(cpi->switchable_interp_count);
#endif
#if 0
// Experimental code
cpi->frame_distortion = 0;
cpi->last_mb_distortion = 0;
#endif
xd->mode_info_context = cm->mi;
xd->prev_mode_info_context = cm->prev_mi;
#if CONFIG_NEWMVENTROPY
vp8_zero(cpi->NMVcount);
#else
vp8_zero(cpi->MVcount);
vp8_zero(cpi->MVcount_hp);
#endif
vp8_zero(cpi->coef_counts);
vp8_zero(cpi->coef_counts_8x8);
#if CONFIG_TX16X16 || CONFIG_HYBRIDTRANSFORM16X16
vp8_zero(cpi->coef_counts_16x16);
#endif
vp8cx_frame_init_quantizer(cpi);
vp8_initialize_rd_consts(cpi, 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-initencode frame context.
init_encode_frame_mb_context(cpi);
vpx_memset(cpi->rd_comp_pred_diff, 0, sizeof(cpi->rd_comp_pred_diff));
vpx_memset(cpi->single_pred_count, 0, sizeof(cpi->single_pred_count));
vpx_memset(cpi->comp_pred_count, 0, sizeof(cpi->comp_pred_count));
{
struct vpx_usec_timer emr_timer;
vpx_usec_timer_start(&emr_timer);
{
// For each row of SBs in the frame
for (mb_row = 0; mb_row < cm->mb_rows; mb_row += 2) {
int offset = (cm->mb_cols + 1) & ~0x1;
encode_sb_row(cpi, cm, mb_row, x, xd, &tp, &totalrate);
// adjust to the next row of SBs
x->src.y_buffer += 32 * x->src.y_stride - 16 * offset;