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bc30736f9b
vpx/vp9/encoder/vp9_encodeframe.c
John Koleszar bc30736f9b Merge "Remove coeff from BLOCK" into experimental
2013-04-23 17:42:12 -07:00

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/*
* 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 "vp9/encoder/vp9_encodeframe.h"
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
#include "vp9/common/vp9_common.h"
#include "vp9/encoder/vp9_onyx_int.h"
#include "vp9/common/vp9_extend.h"
#include "vp9/common/vp9_entropy.h"
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_quant_common.h"
#include "vp9/encoder/vp9_segmentation.h"
#include "vp9/common/vp9_setupintrarecon.h"
#include "vp9/encoder/vp9_encodeintra.h"
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_invtrans.h"
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_tile_common.h"
#include "vp9/encoder/vp9_tokenize.h"
#include "./vp9_rtcd.h"
#include <stdio.h>
#include <math.h>
#include <limits.h>
#include "vpx_ports/vpx_timer.h"
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_mvref_common.h"
#define DBG_PRNT_SEGMAP 0
// #define ENC_DEBUG
#ifdef ENC_DEBUG
int enc_debug = 0;
#endif
void vp9_select_interp_filter_type(VP9_COMP *cpi);
static void encode_macroblock(VP9_COMP *cpi, TOKENEXTRA **t,
int output_enabled, int mb_row, int mb_col);
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
int output_enabled, int mb_row, int mb_col,
BLOCK_SIZE_TYPE bsize);
static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
#ifdef MODE_STATS
unsigned int inter_y_modes[MB_MODE_COUNT];
unsigned int inter_uv_modes[VP9_UV_MODES];
unsigned int inter_b_modes[B_MODE_COUNT];
unsigned int y_modes[VP9_YMODES];
unsigned int i8x8_modes[VP9_I8X8_MODES];
unsigned int uv_modes[VP9_UV_MODES];
unsigned int uv_modes_y[VP9_YMODES][VP9_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
* vp9_activity_masking().
*/
#define VP9_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 uint8_t VP9_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(VP9_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 = vp9_variance16x16(x->src.y_buffer, x->src.y_stride, VP9_VAR_OFFS, 0,
&sse);
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(VP9_COMP *cpi,
MACROBLOCK *x, int use_dc_pred) {
return vp9_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(VP9_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 < VP9_ACTIVITY_AVG_MIN)
mb_activity = VP9_ACTIVITY_AVG_MIN;
return mb_activity;
}
// Calculate an "average" mb activity value for the frame
#define ACT_MEDIAN 0
static void calc_av_activity(VP9_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
// Simple mean for now
cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs);
#endif
if (cpi->activity_avg < VP9_ACTIVITY_AVG_MIN)
cpi->activity_avg = VP9_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 an activity index for each mb
static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
VP9_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(VP9_COMP *cpi) {
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *xd = &x->e_mbd;
VP9_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;
x->mb_activity_ptr = cpi->mb_activity_map;
// 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->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
xd->left_available = (mb_col != 0);
recon_yoffset += 16;
#endif
// 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
vp9_extend_mb_row(new_yv12, xd->plane[0].dst.buf + 16,
xd->plane[1].dst.buf + 8, xd->plane[2].dst.buf + 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 vp9_activity_masking(VP9_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(VP9_COMP *cpi,
PICK_MODE_CONTEXT *ctx,
BLOCK_SIZE_TYPE bsize,
int output_enabled) {
int i, x_idx, y;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *mi = &ctx->mic;
MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
int mb_mode = mi->mbmi.mode;
int mb_mode_index = ctx->best_mode_index;
const int mis = cpi->common.mode_info_stride;
const int bh = 1 << mb_height_log2(bsize), bw = 1 << mb_width_log2(bsize);
#if CONFIG_DEBUG
assert(mb_mode < MB_MODE_COUNT);
assert(mb_mode_index < MAX_MODES);
assert(mi->mbmi.ref_frame < MAX_REF_FRAMES);
#endif
assert(mi->mbmi.sb_type == bsize);
// Restore the coding context of the MB to that that was in place
// when the mode was picked for it
for (y = 0; y < bh; y++) {
for (x_idx = 0; x_idx < bw; x_idx++) {
if ((xd->mb_to_right_edge >> 7) + bw > x_idx &&
(xd->mb_to_bottom_edge >> 7) + bh > y) {
MODE_INFO *mi_addr = xd->mode_info_context + x_idx + y * mis;
vpx_memcpy(mi_addr, mi, sizeof(MODE_INFO));
}
}
}
if (bsize < BLOCK_SIZE_SB32X32) {
ctx->txfm_rd_diff[ALLOW_32X32] = ctx->txfm_rd_diff[ALLOW_16X16];
}
if (mb_mode == I4X4_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 < B_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;
}
x->skip = ctx->skip;
if (!output_enabled)
return;
{
int segment_id = mbmi->segment_id, ref_pred_flag;
if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
for (i = 0; i < NB_TXFM_MODES; i++) {
cpi->rd_tx_select_diff[i] += ctx->txfm_rd_diff[i];
}
}
// Did the chosen reference frame match its predicted value.
ref_pred_flag = ((xd->mode_info_context->mbmi.ref_frame ==
vp9_get_pred_ref(cm, xd)));
vp9_set_pred_flag(xd, PRED_REF, ref_pred_flag);
if (!xd->segmentation_enabled ||
!vp9_segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME) ||
vp9_check_segref(xd, segment_id, INTRA_FRAME) +
vp9_check_segref(xd, segment_id, LAST_FRAME) +
vp9_check_segref(xd, segment_id, GOLDEN_FRAME) +
vp9_check_segref(xd, segment_id, ALTREF_FRAME) > 1) {
// Get the prediction context and status
int pred_context = vp9_get_pred_context(cm, xd, PRED_REF);
// Count prediction success
cpi->ref_pred_count[pred_context][ref_pred_flag]++;
}
}
if (cpi->common.frame_type == KEY_FRAME) {
// Restore the coding modes to that held in the coding context
// if (mb_mode == I4X4_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 /*I4X4_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]++;
if (mbmi->mode == SPLITMV || mbmi->mode == NEWMV) {
int_mv best_mv, best_second_mv;
MV_REFERENCE_FRAME rf = mbmi->ref_frame;
best_mv.as_int = ctx->best_ref_mv.as_int;
best_second_mv.as_int = ctx->second_best_ref_mv.as_int;
if (mbmi->mode == NEWMV) {
best_mv.as_int = mbmi->ref_mvs[rf][0].as_int;
best_second_mv.as_int = mbmi->ref_mvs[mbmi->second_ref_frame][0].as_int;
}
mbmi->best_mv.as_int = best_mv.as_int;
mbmi->best_second_mv.as_int = best_second_mv.as_int;
vp9_update_nmv_count(cpi, x, &best_mv, &best_second_mv);
}
#if CONFIG_COMP_INTERINTRA_PRED
if (mbmi->mode >= NEARESTMV && mbmi->mode < SPLITMV &&
mbmi->second_ref_frame <= INTRA_FRAME) {
if (mbmi->second_ref_frame == INTRA_FRAME) {
++cpi->interintra_count[1];
++cpi->ymode_count[mbmi->interintra_mode];
#if SEPARATE_INTERINTRA_UV
++cpi->y_uv_mode_count[mbmi->interintra_mode][mbmi->interintra_uv_mode];
#endif
} else {
++cpi->interintra_count[0];
}
}
#endif
if (cpi->common.mcomp_filter_type == SWITCHABLE &&
mbmi->mode >= NEARESTMV &&
mbmi->mode <= SPLITMV) {
++cpi->switchable_interp_count
[vp9_get_pred_context(&cpi->common, xd, PRED_SWITCHABLE_INTERP)]
[vp9_switchable_interp_map[mbmi->interp_filter]];
}
cpi->rd_comp_pred_diff[SINGLE_PREDICTION_ONLY] += ctx->single_pred_diff;
cpi->rd_comp_pred_diff[COMP_PREDICTION_ONLY] += ctx->comp_pred_diff;
cpi->rd_comp_pred_diff[HYBRID_PREDICTION] += ctx->hybrid_pred_diff;
}
}
static unsigned find_seg_id(uint8_t *buf, BLOCK_SIZE_TYPE bsize,
int start_y, int height, int start_x, int width) {
const int bw = 1 << mb_width_log2(bsize), bh = 1 << mb_height_log2(bsize);
const int end_x = MIN(start_x + bw, width);
const int end_y = MIN(start_y + bh, height);
int x, y;
unsigned seg_id = -1;
buf += width * start_y;
for (y = start_y; y < end_y; y++, buf += width) {
for (x = start_x; x < end_x; x++) {
seg_id = MIN(seg_id, buf[x]);
}
}
return seg_id;
}
static void set_offsets(VP9_COMP *cpi,
int mb_row, int mb_col, BLOCK_SIZE_TYPE bsize) {
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *mbmi;
const int dst_fb_idx = cm->new_fb_idx;
const int idx_map = mb_row * cm->mb_cols + mb_col;
const int idx_str = xd->mode_info_stride * mb_row + mb_col;
const int bw = 1 << mb_width_log2(bsize), bh = 1 << mb_height_log2(bsize);
// entropy context structures
xd->above_context = cm->above_context + mb_col;
xd->left_context = cm->left_context + (mb_row & 3);
// Activity map pointer
x->mb_activity_ptr = &cpi->mb_activity_map[idx_map];
x->active_ptr = cpi->active_map + idx_map;
/* pointers to mode info contexts */
x->partition_info = x->pi + idx_str;
xd->mode_info_context = cm->mi + idx_str;
mbmi = &xd->mode_info_context->mbmi;
xd->prev_mode_info_context = cm->prev_mi + idx_str;
// Set up destination pointers
setup_dst_planes(xd, &cm->yv12_fb[dst_fb_idx], mb_row, mb_col);
/* 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) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
x->mv_col_min = -((mb_col * 16) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
x->mv_row_max = ((cm->mb_rows - mb_row) * 16 +
(VP9BORDERINPIXELS - 16 * bh - VP9_INTERP_EXTEND));
x->mv_col_max = ((cm->mb_cols - mb_col) * 16 +
(VP9BORDERINPIXELS - 16 * bw - VP9_INTERP_EXTEND));
// Set up distance of MB to edge of frame in 1/8th pel units
assert(!(mb_col & (bw - 1)) && !(mb_row & (bh - 1)));
set_mb_row(cm, xd, mb_row, bh);
set_mb_col(cm, xd, mb_col, bw);
/* set up source buffers */
setup_pred_block(&x->src, cpi->Source, mb_row, mb_col, NULL, NULL);
/* R/D setup */
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
/* segment ID */
if (xd->segmentation_enabled) {
if (xd->update_mb_segmentation_map) {
mbmi->segment_id = find_seg_id(cpi->segmentation_map, bsize,
mb_row, cm->mb_rows, mb_col, cm->mb_cols);
} else {
mbmi->segment_id = find_seg_id(cm->last_frame_seg_map, bsize,
mb_row, cm->mb_rows, mb_col, cm->mb_cols);
}
assert(mbmi->segment_id <= 3);
vp9_mb_init_quantizer(cpi, x);
if (xd->segmentation_enabled && cpi->seg0_cnt > 0 &&
!vp9_segfeature_active(xd, 0, SEG_LVL_REF_FRAME) &&
vp9_segfeature_active(xd, 1, SEG_LVL_REF_FRAME) &&
vp9_check_segref(xd, 1, INTRA_FRAME) +
vp9_check_segref(xd, 1, LAST_FRAME) +
vp9_check_segref(xd, 1, GOLDEN_FRAME) +
vp9_check_segref(xd, 1, ALTREF_FRAME) == 1) {
cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt;
} else {
const int y = mb_row & ~3;
const int x = mb_col & ~3;
const int p16 = ((mb_row & 1) << 1) + (mb_col & 1);
const int p32 = ((mb_row & 2) << 2) + ((mb_col & 2) << 1);
const int tile_progress = cm->cur_tile_mb_col_start * cm->mb_rows;
const int mb_cols = cm->cur_tile_mb_col_end - cm->cur_tile_mb_col_start;
cpi->seg0_progress =
((y * mb_cols + x * 4 + p32 + p16 + tile_progress) << 16) / cm->MBs;
}
} else {
mbmi->segment_id = 0;
}
}
static int pick_mb_mode(VP9_COMP *cpi,
int mb_row,
int mb_col,
TOKENEXTRA **tp,
int *totalrate,
int *totaldist) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
int splitmodes_used = 0;
MB_MODE_INFO *mbmi;
set_offsets(cpi, mb_row, mb_col, BLOCK_SIZE_MB16X16);
if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp9_activity_masking(cpi, x);
mbmi = &xd->mode_info_context->mbmi;
mbmi->sb_type = BLOCK_SIZE_MB16X16;
// 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) {
vp9_rd_pick_intra_mode(cpi, x, totalrate, totaldist);
// Save the coding context
vpx_memcpy(&x->mb_context[xd->sb_index][xd->mb_index].mic,
xd->mode_info_context, sizeof(MODE_INFO));
} else {
vp9_pick_mode_inter_macroblock(cpi, x, mb_row, mb_col,
totalrate, totaldist);
splitmodes_used += (mbmi->mode == SPLITMV);
if (cpi->mb.e_mbd.segmentation_enabled && mbmi->segment_id == 0) {
cpi->seg0_idx++;
}
}
return splitmodes_used;
}
static void pick_sb_modes(VP9_COMP *cpi, int mb_row, int mb_col,
TOKENEXTRA **tp, int *totalrate, int *totaldist,
BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
set_offsets(cpi, mb_row, mb_col, bsize);
xd->mode_info_context->mbmi.sb_type = bsize;
if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp9_activity_masking(cpi, x);
/* 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) {
vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx);
} else {
vp9_rd_pick_inter_mode_sb(cpi, x, mb_row, mb_col, totalrate, totaldist,
bsize, ctx);
}
}
static void update_stats(VP9_COMP *cpi, int mb_row, int mb_col) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *mi = xd->mode_info_context;
MB_MODE_INFO *const mbmi = &mi->mbmi;
if (cm->frame_type == KEY_FRAME) {
#ifdef MODE_STATS
y_modes[mbmi->mode]++;
#endif
} else {
int segment_id, seg_ref_active;
if (mbmi->ref_frame) {
int pred_context = vp9_get_pred_context(cm, xd, PRED_COMP);
if (mbmi->second_ref_frame <= INTRA_FRAME)
cpi->single_pred_count[pred_context]++;
else
cpi->comp_pred_count[pred_context]++;
}
#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 = vp9_segfeature_active(xd, segment_id,
SEG_LVL_REF_FRAME);
if (!seg_ref_active ||
((vp9_check_segref(xd, segment_id, INTRA_FRAME) +
vp9_check_segref(xd, segment_id, LAST_FRAME) +
vp9_check_segref(xd, segment_id, GOLDEN_FRAME) +
vp9_check_segref(xd, segment_id, ALTREF_FRAME)) > 1)) {
cpi->count_mb_ref_frame_usage[mbmi->ref_frame]++;
}
// Count of last ref frame 0,0 usage
if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME))
cpi->inter_zz_count++;
}
}
static void encode_sb(VP9_COMP *cpi,
int mb_row,
int mb_col,
int output_enabled,
TOKENEXTRA **tp, BLOCK_SIZE_TYPE is_sb) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
BLOCK_SIZE_TYPE bsize = BLOCK_SIZE_SB32X32;
if (is_sb == BLOCK_SIZE_SB32X32) {
set_offsets(cpi, mb_row, mb_col, bsize);
update_state(cpi, &x->sb32_context[xd->sb_index],
bsize, output_enabled);
encode_superblock(cpi, tp,
output_enabled, mb_row, mb_col, bsize);
if (output_enabled) {
update_stats(cpi, mb_row, mb_col);
cpi->partition_count[partition_plane(bsize)][PARTITION_NONE]++;
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
#if CONFIG_SBSEGMENT
} else if (is_sb == BLOCK_SIZE_SB16X32) {
int i;
if (output_enabled)
cpi->partition_count[partition_plane(bsize)][PARTITION_VERT]++;
for (i = 0; i < 2 && mb_col + i != cm->mb_cols; i++) {
set_offsets(cpi, mb_row, mb_col + i, BLOCK_SIZE_SB16X32);
update_state(cpi, &x->sb16x32_context[xd->sb_index][i],
BLOCK_SIZE_SB16X32, output_enabled);
encode_superblock(cpi, tp,
output_enabled, mb_row, mb_col + i, BLOCK_SIZE_SB16X32);
if (output_enabled) {
update_stats(cpi, mb_row, mb_col + i);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
}
} else if (is_sb == BLOCK_SIZE_SB32X16) {
int i;
if (output_enabled)
cpi->partition_count[partition_plane(bsize)][PARTITION_HORZ]++;
for (i = 0; i < 2 && mb_row + i != cm->mb_rows; i++) {
set_offsets(cpi, mb_row + i, mb_col, BLOCK_SIZE_SB32X16);
update_state(cpi, &x->sb32x16_context[xd->sb_index][i],
BLOCK_SIZE_SB32X16, output_enabled);
encode_superblock(cpi, tp,
output_enabled, mb_row + i, mb_col, BLOCK_SIZE_SB32X16);
if (output_enabled) {
update_stats(cpi, mb_row + i, mb_col);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
}
#endif
} else {
int i;
if (output_enabled)
cpi->partition_count[partition_plane(bsize)][PARTITION_SPLIT]++;
for (i = 0; i < 4; i++) {
const int x_idx = i & 1, y_idx = i >> 1;
if ((mb_row + y_idx >= cm->mb_rows) || (mb_col + x_idx >= cm->mb_cols)) {
// MB lies outside frame, move on
continue;
}
set_offsets(cpi, mb_row + y_idx, mb_col + x_idx, BLOCK_SIZE_MB16X16);
xd->mb_index = i;
update_state(cpi, &x->mb_context[xd->sb_index][i],
BLOCK_SIZE_MB16X16, output_enabled);
if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp9_activity_masking(cpi, x);
encode_macroblock(cpi, tp,
output_enabled, mb_row + y_idx, mb_col + x_idx);
if (output_enabled) {
update_stats(cpi, mb_row + y_idx, mb_col + x_idx);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
}
}
// debug output
#if DBG_PRNT_SEGMAP
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "\n");
fclose(statsfile);
}
#endif
}
static void encode_sb64(VP9_COMP *cpi,
int mb_row,
int mb_col,
TOKENEXTRA **tp, BLOCK_SIZE_TYPE is_sb[4]) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
BLOCK_SIZE_TYPE bsize = BLOCK_SIZE_SB64X64;
if (is_sb[0] == BLOCK_SIZE_SB64X64) {
set_offsets(cpi, mb_row, mb_col, bsize);
update_state(cpi, &x->sb64_context, bsize, 1);
encode_superblock(cpi, tp,
1, mb_row, mb_col, bsize);
update_stats(cpi, mb_row, mb_col);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
cpi->partition_count[partition_plane(bsize)][PARTITION_NONE]++;
#if CONFIG_SBSEGMENT
} else if (is_sb[0] == BLOCK_SIZE_SB32X64) {
int i;
cpi->partition_count[partition_plane(bsize)][PARTITION_VERT]++;
for (i = 0; i < 2 && mb_col + i * 2 != cm->mb_cols; i++) {
set_offsets(cpi, mb_row, mb_col + i * 2, BLOCK_SIZE_SB32X64);
update_state(cpi, &x->sb32x64_context[i], BLOCK_SIZE_SB32X64, 1);
encode_superblock(cpi, tp,
1, mb_row, mb_col + i * 2, BLOCK_SIZE_SB32X64);
update_stats(cpi, mb_row, mb_col + i * 2);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
} else if (is_sb[0] == BLOCK_SIZE_SB64X32) {
int i;
cpi->partition_count[partition_plane(bsize)][PARTITION_HORZ]++;
for (i = 0; i < 2 && mb_row + i * 2 != cm->mb_rows; i++) {
set_offsets(cpi, mb_row + i * 2, mb_col, BLOCK_SIZE_SB64X32);
update_state(cpi, &x->sb64x32_context[i], BLOCK_SIZE_SB64X32, 1);
encode_superblock(cpi, tp,
1, mb_row + i * 2, mb_col, BLOCK_SIZE_SB64X32);
update_stats(cpi, mb_row + i * 2, mb_col);
(*tp)->token = EOSB_TOKEN;
(*tp)++;
}
#endif
} else {
int i;
cpi->partition_count[partition_plane(bsize)][PARTITION_SPLIT]++;
for (i = 0; i < 4; i++) {
const int x_idx = i & 1, y_idx = i >> 1;
if (mb_row + y_idx * 2 >= cm->mb_rows ||
mb_col + x_idx * 2 >= cm->mb_cols) {
// MB lies outside frame, move on
continue;
}
xd->sb_index = i;
encode_sb(cpi, mb_row + 2 * y_idx, mb_col + 2 * x_idx, 1, tp,
is_sb[i]);
}
}
}
static void encode_sb_row(VP9_COMP *cpi,
int mb_row,
TOKENEXTRA **tp,
int *totalrate) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
int mb_col;
// 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 = cm->cur_tile_mb_col_start;
mb_col < cm->cur_tile_mb_col_end; mb_col += 4) {
int i;
BLOCK_SIZE_TYPE sb_partitioning[4];
int sb64_rate = 0, sb64_dist = 0;
int sb64_skip = 0;
ENTROPY_CONTEXT_PLANES l[4], a[4];
TOKENEXTRA *tp_orig = *tp;
memcpy(&a, cm->above_context + mb_col, sizeof(a));
memcpy(&l, cm->left_context, sizeof(l));
for (i = 0; i < 4; i++) {
const int x_idx = (i & 1) << 1, y_idx = i & 2;
int sb32_rate = 0, sb32_dist = 0;
int splitmodes_used = 0;
int sb32_skip = 0;
int j;
ENTROPY_CONTEXT_PLANES l2[2], a2[2];
if (mb_row + y_idx >= cm->mb_rows || mb_col + x_idx >= cm->mb_cols)
continue;
xd->sb_index = i;
/* Function should not modify L & A contexts; save and restore on exit */
vpx_memcpy(l2, cm->left_context + y_idx, sizeof(l2));
vpx_memcpy(a2, cm->above_context + mb_col + x_idx, sizeof(a2));
/* Encode MBs in raster order within the SB */
sb_partitioning[i] = BLOCK_SIZE_MB16X16;
for (j = 0; j < 4; j++) {
const int x_idx_m = x_idx + (j & 1), y_idx_m = y_idx + (j >> 1);
int r, d;
if (mb_row + y_idx_m >= cm->mb_rows ||
mb_col + x_idx_m >= cm->mb_cols) {
// MB lies outside frame, move on
continue;
}
// Index of the MB in the SB 0..3
xd->mb_index = j;
splitmodes_used += pick_mb_mode(cpi, mb_row + y_idx_m,
mb_col + x_idx_m, tp, &r, &d);
sb32_rate += r;
sb32_dist += d;
// Dummy encode, do not do the tokenization
encode_macroblock(cpi, tp, 0, mb_row + y_idx_m,
mb_col + x_idx_m);
}
/* Restore L & A coding context to those in place on entry */
vpx_memcpy(cm->left_context + y_idx, l2, sizeof(l2));
vpx_memcpy(cm->above_context + mb_col + x_idx, a2, sizeof(a2));
sb32_rate += x->partition_cost[partition_plane(BLOCK_SIZE_SB32X32)]
[PARTITION_SPLIT];
if (cpi->sf.splitmode_breakout) {
sb32_skip = splitmodes_used;
sb64_skip += splitmodes_used;
}
#if CONFIG_SBSEGMENT
// check 32x16
if (mb_col + x_idx + 1 < cm->mb_cols) {
int r, d;
xd->mb_index = 0;
pick_sb_modes(cpi, mb_row + y_idx, mb_col + x_idx,
tp, &r, &d, BLOCK_SIZE_SB32X16,
&x->sb32x16_context[xd->sb_index][xd->mb_index]);
if (mb_row + y_idx + 1 < cm->mb_rows) {
int r2, d2;
update_state(cpi, &x->sb32x16_context[xd->sb_index][xd->mb_index],
BLOCK_SIZE_SB32X16, 0);
encode_superblock(cpi, tp,
0, mb_row + y_idx, mb_col + x_idx,
BLOCK_SIZE_SB32X16);
xd->mb_index = 1;
pick_sb_modes(cpi, mb_row + y_idx + 1, mb_col + x_idx,
tp, &r2, &d2, BLOCK_SIZE_SB32X16,
&x->sb32x16_context[xd->sb_index][xd->mb_index]);
r += r2;
d += d2;
}
r += x->partition_cost[partition_plane(BLOCK_SIZE_SB32X32)]
[PARTITION_HORZ];
/* is this better than MB coding? */
if (RDCOST(x->rdmult, x->rddiv, r, d) <
RDCOST(x->rdmult, x->rddiv, sb32_rate, sb32_dist)) {
sb32_rate = r;
sb32_dist = d;
sb_partitioning[i] = BLOCK_SIZE_SB32X16;
}
vpx_memcpy(cm->left_context + y_idx, l2, sizeof(l2));
vpx_memcpy(cm->above_context + mb_col + x_idx, a2, sizeof(a2));
}
// check 16x32
if (mb_row + y_idx + 1 < cm->mb_rows) {
int r, d;
xd->mb_index = 0;
pick_sb_modes(cpi, mb_row + y_idx, mb_col + x_idx,
tp, &r, &d, BLOCK_SIZE_SB16X32,
&x->sb16x32_context[xd->sb_index][xd->mb_index]);
if (mb_col + x_idx + 1 < cm->mb_cols) {
int r2, d2;
update_state(cpi, &x->sb16x32_context[xd->sb_index][xd->mb_index],
BLOCK_SIZE_SB16X32, 0);
encode_superblock(cpi, tp,
0, mb_row + y_idx, mb_col + x_idx,
BLOCK_SIZE_SB16X32);
xd->mb_index = 1;
pick_sb_modes(cpi, mb_row + y_idx, mb_col + x_idx + 1,
tp, &r2, &d2, BLOCK_SIZE_SB16X32,
&x->sb16x32_context[xd->sb_index][xd->mb_index]);
r += r2;
d += d2;
}
r += x->partition_cost[partition_plane(BLOCK_SIZE_SB32X32)]
[PARTITION_VERT];
/* is this better than MB coding? */
if (RDCOST(x->rdmult, x->rddiv, r, d) <
RDCOST(x->rdmult, x->rddiv, sb32_rate, sb32_dist)) {
sb32_rate = r;
sb32_dist = d;
sb_partitioning[i] = BLOCK_SIZE_SB16X32;
}
vpx_memcpy(cm->left_context + y_idx, l2, sizeof(l2));
vpx_memcpy(cm->above_context + mb_col + x_idx, a2, sizeof(a2));
}
#endif
if (!sb32_skip && !(mb_col + x_idx + 1 >= cm->mb_cols ||
mb_row + y_idx + 1 >= cm->mb_rows)) {
int r, d;
/* Pick a mode assuming that it applies to all 4 of the MBs in the SB */
pick_sb_modes(cpi, mb_row + y_idx, mb_col + x_idx,
tp, &r, &d, BLOCK_SIZE_SB32X32,
&x->sb32_context[xd->sb_index]);
r += x->partition_cost[partition_plane(BLOCK_SIZE_SB32X32)]
[PARTITION_NONE];
if (RDCOST(x->rdmult, x->rddiv, r, d) <
RDCOST(x->rdmult, x->rddiv, sb32_rate, sb32_dist)) {
sb32_rate = r;
sb32_dist = d;
sb_partitioning[i] = BLOCK_SIZE_SB32X32;
}
}
// If we used 16x16 instead of 32x32 then skip 64x64 (if enabled).
if (cpi->sf.mb16_breakout && sb_partitioning[i] != BLOCK_SIZE_SB32X32) {
++sb64_skip;
}
sb64_rate += sb32_rate;
sb64_dist += sb32_dist;
/* Encode SB using best computed mode(s) */
// FIXME(rbultje): there really shouldn't be any need to encode_mb/sb
// for each level that we go up, we can just keep tokens and recon
// pixels of the lower level; also, inverting SB/MB order (big->small
// instead of small->big) means we can use as threshold for small, which
// may enable breakouts if RD is not good enough (i.e. faster)
encode_sb(cpi, mb_row + y_idx, mb_col + x_idx, 0, tp,
sb_partitioning[i]);
}
memcpy(cm->above_context + mb_col, &a, sizeof(a));
memcpy(cm->left_context, &l, sizeof(l));
sb64_rate += x->partition_cost[partition_plane(BLOCK_SIZE_SB64X64)]
[PARTITION_SPLIT];
#if CONFIG_SBSEGMENT
// check 64x32
if (mb_col + 3 < cm->mb_cols && !(cm->mb_rows & 1)) {
int r, d;
xd->sb_index = 0;
pick_sb_modes(cpi, mb_row, mb_col,
tp, &r, &d, BLOCK_SIZE_SB64X32,
&x->sb64x32_context[xd->sb_index]);
if (mb_row + 2 != cm->mb_rows) {
int r2, d2;
update_state(cpi, &x->sb64x32_context[xd->sb_index],
BLOCK_SIZE_SB64X32, 0);
encode_superblock(cpi, tp,
0, mb_row, mb_col, BLOCK_SIZE_SB64X32);
xd->sb_index = 1;
pick_sb_modes(cpi, mb_row + 2, mb_col,
tp, &r2, &d2, BLOCK_SIZE_SB64X32,
&x->sb64x32_context[xd->sb_index]);
r += r2;
d += d2;
}
r += x->partition_cost[partition_plane(BLOCK_SIZE_SB64X64)]
[PARTITION_HORZ];
/* is this better than MB coding? */
if (RDCOST(x->rdmult, x->rddiv, r, d) <
RDCOST(x->rdmult, x->rddiv, sb64_rate, sb64_dist)) {
sb64_rate = r;
sb64_dist = d;
sb_partitioning[0] = BLOCK_SIZE_SB64X32;
}
vpx_memcpy(cm->left_context, l, sizeof(l));
vpx_memcpy(cm->above_context + mb_col, a, sizeof(a));
}
// check 32x64
if (mb_row + 3 < cm->mb_rows && !(cm->mb_cols & 1)) {
int r, d;
xd->sb_index = 0;
pick_sb_modes(cpi, mb_row, mb_col,
tp, &r, &d, BLOCK_SIZE_SB32X64,
&x->sb32x64_context[xd->sb_index]);
if (mb_col + 2 != cm->mb_cols) {
int r2, d2;
update_state(cpi, &x->sb32x64_context[xd->sb_index],
BLOCK_SIZE_SB32X64, 0);
encode_superblock(cpi, tp,
0, mb_row, mb_col, BLOCK_SIZE_SB32X64);
xd->sb_index = 1;
pick_sb_modes(cpi, mb_row, mb_col + 2,
tp, &r2, &d2, BLOCK_SIZE_SB32X64,
&x->sb32x64_context[xd->sb_index]);
r += r2;
d += d2;
}
r += x->partition_cost[partition_plane(BLOCK_SIZE_SB64X64)]
[PARTITION_VERT];
/* is this better than MB coding? */
if (RDCOST(x->rdmult, x->rddiv, r, d) <
RDCOST(x->rdmult, x->rddiv, sb64_rate, sb64_dist)) {
sb64_rate = r;
sb64_dist = d;
sb_partitioning[0] = BLOCK_SIZE_SB32X64;
}
vpx_memcpy(cm->left_context, l, sizeof(l));
vpx_memcpy(cm->above_context + mb_col, a, sizeof(a));
}
#endif
if (!sb64_skip && !(mb_col + 3 >= cm->mb_cols ||
mb_row + 3 >= cm->mb_rows)) {
int r, d;
pick_sb_modes(cpi, mb_row, mb_col, tp, &r, &d,
BLOCK_SIZE_SB64X64, &x->sb64_context);
r += x->partition_cost[partition_plane(BLOCK_SIZE_SB64X64)]
[PARTITION_NONE];
if (RDCOST(x->rdmult, x->rddiv, r, d) <
RDCOST(x->rdmult, x->rddiv, sb64_rate, sb64_dist)) {
sb64_rate = r;
sb64_dist = d;
sb_partitioning[0] = BLOCK_SIZE_SB64X64;
}
}
assert(tp_orig == *tp);
encode_sb64(cpi, mb_row, mb_col, tp, sb_partitioning);
assert(tp_orig < *tp);
}
}
static void init_encode_frame_mb_context(VP9_COMP *cpi) {
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
x->act_zbin_adj = 0;
cpi->seg0_idx = 0;
vpx_memset(cpi->ref_pred_count, 0, sizeof(cpi->ref_pred_count));
xd->mode_info_stride = cm->mode_info_stride;
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)
vp9_init_mbmode_probs(cm);
// Copy data over into macro block data structures.
x->src = *cpi->Source;
// TODO(jkoleszar): are these initializations required?
setup_pre_planes(xd, &cm->yv12_fb[cm->ref_frame_map[cpi->lst_fb_idx]], NULL,
0, 0, NULL, NULL);
setup_dst_planes(xd, &cm->yv12_fb[cm->new_fb_idx], 0, 0);
// set up frame for intra coded blocks
vp9_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]);
vp9_build_block_offsets(x);
vp9_setup_block_dptrs(&x->e_mbd);
xd->mode_info_context->mbmi.mode = DC_PRED;
xd->mode_info_context->mbmi.uv_mode = DC_PRED;
vp9_zero(cpi->count_mb_ref_frame_usage)
vp9_zero(cpi->bmode_count)
vp9_zero(cpi->ymode_count)
vp9_zero(cpi->i8x8_mode_count)
vp9_zero(cpi->y_uv_mode_count)
vp9_zero(cpi->sub_mv_ref_count)
vp9_zero(cpi->mbsplit_count)
vp9_zero(cpi->common.fc.mv_ref_ct)
vp9_zero(cpi->sb_ymode_count)
vp9_zero(cpi->partition_count);
#if CONFIG_COMP_INTERINTRA_PRED
vp9_zero(cpi->interintra_count);
vp9_zero(cpi->interintra_select_count);
#endif
vpx_memset(cm->above_context, 0,
sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols);
}
static void switch_lossless_mode(VP9_COMP *cpi, int lossless) {
if (lossless) {
cpi->mb.fwd_txm8x4 = vp9_short_walsh8x4;
cpi->mb.fwd_txm4x4 = vp9_short_walsh4x4;
cpi->mb.e_mbd.inv_txm4x4_1 = vp9_short_iwalsh4x4_1;
cpi->mb.e_mbd.inv_txm4x4 = vp9_short_iwalsh4x4;
cpi->mb.optimize = 0;
cpi->common.filter_level = 0;
cpi->zbin_mode_boost_enabled = 0;
cpi->common.txfm_mode = ONLY_4X4;
} else {
cpi->mb.fwd_txm8x4 = vp9_short_fdct8x4;
cpi->mb.fwd_txm4x4 = vp9_short_fdct4x4;
cpi->mb.e_mbd.inv_txm4x4_1 = vp9_short_idct4x4_1;
cpi->mb.e_mbd.inv_txm4x4 = vp9_short_idct4x4;
}
}
static void encode_frame_internal(VP9_COMP *cpi) {
int mb_row;
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
int totalrate;
// fprintf(stderr, "encode_frame_internal frame %d (%d) type %d\n",
// cpi->common.current_video_frame, cpi->common.show_frame,
// cm->frame_type);
// 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.
vp9_compute_mod_refprobs(cm);
// debug output
#if DBG_PRNT_SEGMAP
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "\n");
fclose(statsfile);
}
#endif
totalrate = 0;
// Reset frame count of inter 0,0 motion vector usage.
cpi->inter_zz_count = 0;
cpi->skip_true_count[0] = cpi->skip_true_count[1] = cpi->skip_true_count[2] = 0;
cpi->skip_false_count[0] = cpi->skip_false_count[1] = cpi->skip_false_count[2] = 0;
vp9_zero(cpi->switchable_interp_count);
vp9_zero(cpi->best_switchable_interp_count);
xd->mode_info_context = cm->mi;
xd->prev_mode_info_context = cm->prev_mi;
vp9_zero(cpi->NMVcount);
vp9_zero(cpi->coef_counts_4x4);
vp9_zero(cpi->coef_counts_8x8);
vp9_zero(cpi->coef_counts_16x16);
vp9_zero(cpi->coef_counts_32x32);
vp9_zero(cm->fc.eob_branch_counts);
#if CONFIG_CODE_ZEROGROUP
vp9_zero(cm->fc.zpc_counts_4x4);
vp9_zero(cm->fc.zpc_counts_8x8);
vp9_zero(cm->fc.zpc_counts_16x16);
vp9_zero(cm->fc.zpc_counts_32x32);
#endif
cpi->mb.e_mbd.lossless = (cm->base_qindex == 0 &&
cm->y_dc_delta_q == 0 &&
cm->uv_dc_delta_q == 0 &&
cm->uv_ac_delta_q == 0);
switch_lossless_mode(cpi, cpi->mb.e_mbd.lossless);
vp9_frame_init_quantizer(cpi);
vp9_initialize_rd_consts(cpi, cm->base_qindex + cm->y_dc_delta_q);
vp9_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));
vpx_memset(cpi->txfm_count_32x32p, 0, sizeof(cpi->txfm_count_32x32p));
vpx_memset(cpi->txfm_count_16x16p, 0, sizeof(cpi->txfm_count_16x16p));
vpx_memset(cpi->txfm_count_8x8p, 0, sizeof(cpi->txfm_count_8x8p));
vpx_memset(cpi->rd_tx_select_diff, 0, sizeof(cpi->rd_tx_select_diff));
{
struct vpx_usec_timer emr_timer;
vpx_usec_timer_start(&emr_timer);
{
// Take tiles into account and give start/end MB
int tile_col, tile_row;
TOKENEXTRA *tp = cpi->tok;
for (tile_row = 0; tile_row < cm->tile_rows; tile_row++) {
vp9_get_tile_row_offsets(cm, tile_row);
for (tile_col = 0; tile_col < cm->tile_columns; tile_col++) {
TOKENEXTRA *tp_old = tp;
// For each row of SBs in the frame
vp9_get_tile_col_offsets(cm, tile_col);
for (mb_row = cm->cur_tile_mb_row_start;
mb_row < cm->cur_tile_mb_row_end; mb_row += 4) {
encode_sb_row(cpi, mb_row, &tp, &totalrate);
}
cpi->tok_count[tile_col] = (unsigned int)(tp - tp_old);
assert(tp - cpi->tok <=
get_token_alloc(cm->mb_rows, cm->mb_cols));
}
}
}
vpx_usec_timer_mark(&emr_timer);
cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer);
}
// 256 rate units to the bit,
// projected_frame_size in units of BYTES
cpi->projected_frame_size = totalrate >> 8;
#if 0
// Keep record of the total distortion this time around for future use
cpi->last_frame_distortion = cpi->frame_distortion;
#endif
}
static int check_dual_ref_flags(VP9_COMP *cpi) {
MACROBLOCKD *xd = &cpi->mb.e_mbd;
int ref_flags = cpi->ref_frame_flags;
if (vp9_segfeature_active(xd, 1, SEG_LVL_REF_FRAME)) {
if ((ref_flags & (VP9_LAST_FLAG | VP9_GOLD_FLAG)) == (VP9_LAST_FLAG | VP9_GOLD_FLAG) &&
vp9_check_segref(xd, 1, LAST_FRAME))
return 1;
if ((ref_flags & (VP9_GOLD_FLAG | VP9_ALT_FLAG)) == (VP9_GOLD_FLAG | VP9_ALT_FLAG) &&
vp9_check_segref(xd, 1, GOLDEN_FRAME))
return 1;
if ((ref_flags & (VP9_ALT_FLAG | VP9_LAST_FLAG)) == (VP9_ALT_FLAG | VP9_LAST_FLAG) &&
vp9_check_segref(xd, 1, ALTREF_FRAME))
return 1;
return 0;
} else {
return (!!(ref_flags & VP9_GOLD_FLAG) +
!!(ref_flags & VP9_LAST_FLAG) +
!!(ref_flags & VP9_ALT_FLAG)) >= 2;
}
}
static int get_skip_flag(MODE_INFO *mi, int mis, int ymbs, int xmbs) {
int x, y;
for (y = 0; y < ymbs; y++) {
for (x = 0; x < xmbs; x++) {
if (!mi[y * mis + x].mbmi.mb_skip_coeff)
return 0;
}
}
return 1;
}
static void set_txfm_flag(MODE_INFO *mi, int mis, int ymbs, int xmbs,
TX_SIZE txfm_size) {
int x, y;
for (y = 0; y < ymbs; y++) {
for (x = 0; x < xmbs; x++)
mi[y * mis + x].mbmi.txfm_size = txfm_size;
}
}
static void reset_skip_txfm_size_sb(VP9_COMP *cpi, MODE_INFO *mi,
int mis, TX_SIZE txfm_max,
int mb_rows_left, int mb_cols_left,
BLOCK_SIZE_TYPE bsize) {
MB_MODE_INFO *const mbmi = &mi->mbmi;
if (mbmi->txfm_size > txfm_max) {
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
const int segment_id = mbmi->segment_id;
const int bh = 1 << mb_height_log2(bsize), bw = 1 << mb_width_log2(bsize);
const int ymbs = MIN(bh, mb_rows_left);
const int xmbs = MIN(bw, mb_cols_left);
xd->mode_info_context = mi;
assert(vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP) ||
get_skip_flag(mi, mis, ymbs, xmbs));
set_txfm_flag(mi, mis, ymbs, xmbs, txfm_max);
}
}
static void reset_skip_txfm_size(VP9_COMP *cpi, TX_SIZE txfm_max) {
VP9_COMMON *const cm = &cpi->common;
int mb_row, mb_col;
const int mis = cm->mode_info_stride;
MODE_INFO *mi, *mi_ptr = cm->mi;
for (mb_row = 0; mb_row < cm->mb_rows; mb_row += 4, mi_ptr += 4 * mis) {
mi = mi_ptr;
for (mb_col = 0; mb_col < cm->mb_cols; mb_col += 4, mi += 4) {
if (mi->mbmi.sb_type == BLOCK_SIZE_SB64X64) {
reset_skip_txfm_size_sb(cpi, mi, mis, txfm_max,
cm->mb_rows - mb_row, cm->mb_cols - mb_col,
BLOCK_SIZE_SB64X64);
#if CONFIG_SBSEGMENT
} else if (mi->mbmi.sb_type == BLOCK_SIZE_SB64X32) {
reset_skip_txfm_size_sb(cpi, mi, mis, txfm_max,
cm->mb_rows - mb_row, cm->mb_cols - mb_col,
BLOCK_SIZE_SB64X32);
if (mb_row + 2 != cm->mb_rows)
reset_skip_txfm_size_sb(cpi, mi + 2 * mis, mis, txfm_max,
cm->mb_rows - mb_row - 2,
cm->mb_cols - mb_col,
BLOCK_SIZE_SB64X32);
} else if (mi->mbmi.sb_type == BLOCK_SIZE_SB32X64) {
reset_skip_txfm_size_sb(cpi, mi, mis, txfm_max,
cm->mb_rows - mb_row, cm->mb_cols - mb_col,
BLOCK_SIZE_SB32X64);
if (mb_col + 2 != cm->mb_cols)
reset_skip_txfm_size_sb(cpi, mi + 2, mis, txfm_max,
cm->mb_rows - mb_row,
cm->mb_cols - mb_col - 2,
BLOCK_SIZE_SB32X64);
#endif
} else {
int i;
for (i = 0; i < 4; i++) {
const int x_idx_sb = (i & 1) << 1, y_idx_sb = i & 2;
MODE_INFO *sb_mi = mi + y_idx_sb * mis + x_idx_sb;
if (mb_row + y_idx_sb >= cm->mb_rows ||
mb_col + x_idx_sb >= cm->mb_cols)
continue;
if (sb_mi->mbmi.sb_type == BLOCK_SIZE_SB32X32) {
reset_skip_txfm_size_sb(cpi, sb_mi, mis, txfm_max,
cm->mb_rows - mb_row - y_idx_sb,
cm->mb_cols - mb_col - x_idx_sb,
BLOCK_SIZE_SB32X32);
#if CONFIG_SBSEGMENT
} else if (sb_mi->mbmi.sb_type == BLOCK_SIZE_SB32X16) {
reset_skip_txfm_size_sb(cpi, sb_mi, mis, txfm_max,
cm->mb_rows - mb_row - y_idx_sb,
cm->mb_cols - mb_col - x_idx_sb,
BLOCK_SIZE_SB32X16);
if (mb_row + y_idx_sb + 1 != cm->mb_rows)
reset_skip_txfm_size_sb(cpi, sb_mi + mis, mis, txfm_max,
cm->mb_rows - mb_row - y_idx_sb - 1,
cm->mb_cols - mb_col - x_idx_sb,
BLOCK_SIZE_SB32X16);
} else if (sb_mi->mbmi.sb_type == BLOCK_SIZE_SB16X32) {
reset_skip_txfm_size_sb(cpi, sb_mi, mis, txfm_max,
cm->mb_rows - mb_row - y_idx_sb,
cm->mb_cols - mb_col - x_idx_sb,
BLOCK_SIZE_SB16X32);
if (mb_col + x_idx_sb + 1 != cm->mb_cols)
reset_skip_txfm_size_sb(cpi, sb_mi + 1, mis, txfm_max,
cm->mb_rows - mb_row - y_idx_sb,
cm->mb_cols - mb_col - x_idx_sb - 1,
BLOCK_SIZE_SB16X32);
#endif
} else {
int m;
for (m = 0; m < 4; m++) {
const int x_idx = x_idx_sb + (m & 1), y_idx = y_idx_sb + (m >> 1);
MODE_INFO *mb_mi;
if (mb_col + x_idx >= cm->mb_cols ||
mb_row + y_idx >= cm->mb_rows)
continue;
mb_mi = mi + y_idx * mis + x_idx;
assert(mb_mi->mbmi.sb_type == BLOCK_SIZE_MB16X16);
reset_skip_txfm_size_sb(cpi, mb_mi, mis, txfm_max,
cm->mb_rows - mb_row - y_idx,
cm->mb_cols - mb_col - x_idx,
BLOCK_SIZE_MB16X16);
}
}
}
}
}
}
}
void vp9_encode_frame(VP9_COMP *cpi) {
if (cpi->sf.RD) {
int i, frame_type, pred_type;
TXFM_MODE txfm_type;
/*
* This code does a single RD pass over the whole frame assuming
* either compound, single or hybrid prediction as per whatever has
* worked best for that type of frame in the past.
* It also predicts whether another coding mode would have worked
* better that this coding mode. If that is the case, it remembers
* that for subsequent frames.
* It does the same analysis for transform size selection also.
*/
if (cpi->common.frame_type == KEY_FRAME)
frame_type = 0;
else if (cpi->is_src_frame_alt_ref && cpi->refresh_golden_frame)
frame_type = 3;
else if (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame)
frame_type = 1;
else
frame_type = 2;
/* prediction (compound, single or hybrid) mode selection */
if (frame_type == 3)
pred_type = SINGLE_PREDICTION_ONLY;
else if (cpi->rd_prediction_type_threshes[frame_type][1] >
cpi->rd_prediction_type_threshes[frame_type][0] &&
cpi->rd_prediction_type_threshes[frame_type][1] >
cpi->rd_prediction_type_threshes[frame_type][2] &&
check_dual_ref_flags(cpi) && cpi->static_mb_pct == 100)
pred_type = COMP_PREDICTION_ONLY;
else if (cpi->rd_prediction_type_threshes[frame_type][0] >
cpi->rd_prediction_type_threshes[frame_type][2])
pred_type = SINGLE_PREDICTION_ONLY;
else
pred_type = HYBRID_PREDICTION;
/* transform size (4x4, 8x8, 16x16 or select-per-mb) selection */
cpi->mb.e_mbd.lossless = 0;
if (cpi->oxcf.lossless) {
txfm_type = ONLY_4X4;
cpi->mb.e_mbd.lossless = 1;
} else
#if 0
/* FIXME (rbultje): this code is disabled until we support cost updates
* while a frame is being encoded; the problem is that each time we
* "revert" to 4x4 only (or even 8x8 only), the coefficient probabilities
* for 16x16 (and 8x8) start lagging behind, thus leading to them lagging
* further behind and not being chosen for subsequent frames either. This
* is essentially a local minimum problem that we can probably fix by
* estimating real costs more closely within a frame, perhaps by re-
* calculating costs on-the-fly as frame encoding progresses. */
if (cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] >
cpi->rd_tx_select_threshes[frame_type][ONLY_4X4] &&
cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] >
cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16] &&
cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] >
cpi->rd_tx_select_threshes[frame_type][ALLOW_8X8]) {
txfm_type = TX_MODE_SELECT;
} else if (cpi->rd_tx_select_threshes[frame_type][ONLY_4X4] >
cpi->rd_tx_select_threshes[frame_type][ALLOW_8X8]
&& cpi->rd_tx_select_threshes[frame_type][ONLY_4X4] >
cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16]
) {
txfm_type = ONLY_4X4;
} else if (cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16] >=
cpi->rd_tx_select_threshes[frame_type][ALLOW_8X8]) {
txfm_type = ALLOW_16X16;
} else
txfm_type = ALLOW_8X8;
#else
txfm_type = cpi->rd_tx_select_threshes[frame_type][ALLOW_32X32] >=
cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] ?
ALLOW_32X32 : TX_MODE_SELECT;
#endif
cpi->common.txfm_mode = txfm_type;
if (txfm_type != TX_MODE_SELECT) {
cpi->common.prob_tx[0] = 128;
cpi->common.prob_tx[1] = 128;
}
cpi->common.comp_pred_mode = pred_type;
encode_frame_internal(cpi);
for (i = 0; i < NB_PREDICTION_TYPES; ++i) {
const int diff = (int)(cpi->rd_comp_pred_diff[i] / cpi->common.MBs);
cpi->rd_prediction_type_threshes[frame_type][i] += diff;
cpi->rd_prediction_type_threshes[frame_type][i] >>= 1;
}
for (i = 0; i < NB_TXFM_MODES; ++i) {
int64_t pd = cpi->rd_tx_select_diff[i];
int diff;
if (i == TX_MODE_SELECT)
pd -= RDCOST(cpi->mb.rdmult, cpi->mb.rddiv,
2048 * (TX_SIZE_MAX_SB - 1), 0);
diff = (int)(pd / cpi->common.MBs);
cpi->rd_tx_select_threshes[frame_type][i] += diff;
cpi->rd_tx_select_threshes[frame_type][i] /= 2;
}
if (cpi->common.comp_pred_mode == HYBRID_PREDICTION) {
int single_count_zero = 0;
int comp_count_zero = 0;
for (i = 0; i < COMP_PRED_CONTEXTS; i++) {
single_count_zero += cpi->single_pred_count[i];
comp_count_zero += cpi->comp_pred_count[i];
}
if (comp_count_zero == 0) {
cpi->common.comp_pred_mode = SINGLE_PREDICTION_ONLY;
} else if (single_count_zero == 0) {
cpi->common.comp_pred_mode = COMP_PREDICTION_ONLY;
}
}
if (cpi->common.txfm_mode == TX_MODE_SELECT) {
const int count4x4 = cpi->txfm_count_16x16p[TX_4X4] +
cpi->txfm_count_32x32p[TX_4X4] +
cpi->txfm_count_8x8p[TX_4X4];
const int count8x8_lp = cpi->txfm_count_32x32p[TX_8X8] +
cpi->txfm_count_16x16p[TX_8X8];
const int count8x8_8x8p = cpi->txfm_count_8x8p[TX_8X8];
const int count16x16_16x16p = cpi->txfm_count_16x16p[TX_16X16];
const int count16x16_lp = cpi->txfm_count_32x32p[TX_16X16];
const int count32x32 = cpi->txfm_count_32x32p[TX_32X32];
if (count4x4 == 0 && count16x16_lp == 0 && count16x16_16x16p == 0 &&
count32x32 == 0) {
cpi->common.txfm_mode = ALLOW_8X8;
reset_skip_txfm_size(cpi, TX_8X8);
} else if (count8x8_8x8p == 0 && count16x16_16x16p == 0 &&
count8x8_lp == 0 && count16x16_lp == 0 && count32x32 == 0) {
cpi->common.txfm_mode = ONLY_4X4;
reset_skip_txfm_size(cpi, TX_4X4);
} else if (count8x8_lp == 0 && count16x16_lp == 0 && count4x4 == 0) {
cpi->common.txfm_mode = ALLOW_32X32;
} else if (count32x32 == 0 && count8x8_lp == 0 && count4x4 == 0) {
cpi->common.txfm_mode = ALLOW_16X16;
reset_skip_txfm_size(cpi, TX_16X16);
}
}
// Update interpolation filter strategy for next frame.
if ((cpi->common.frame_type != KEY_FRAME) && (cpi->sf.search_best_filter))
vp9_select_interp_filter_type(cpi);
} else {
encode_frame_internal(cpi);
}
}
void vp9_build_block_offsets(MACROBLOCK *x) {
int block = 0;
int br, bc;
vp9_build_block_doffsets(&x->e_mbd);
for (br = 0; br < 4; br++) {
for (bc = 0; bc < 4; bc++) {
BLOCK *this_block = &x->block[block];
// this_block->base_src = &x->src.y_buffer;
// this_block->src_stride = x->src.y_stride;
// this_block->src = 4 * br * this_block->src_stride + 4 * bc;
this_block->base_src = &x->src.y_buffer;
this_block->src_stride = x->src.y_stride;
this_block->src = 4 * br * this_block->src_stride + 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(VP9_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];
++ uv_modes_y[m][uvm];
if (m == I4X4_PRED) {
unsigned int *const bct = is_key ? b_modes : inter_b_modes;
int b = 0;
do {
++ bct[xd->block[b].bmi.as_mode.first];
} while (++b < 16);
}
if (m == I8X8_PRED) {
i8x8_modes[xd->block[0].bmi.as_mode.first]++;
i8x8_modes[xd->block[2].bmi.as_mode.first]++;
i8x8_modes[xd->block[8].bmi.as_mode.first]++;
i8x8_modes[xd->block[10].bmi.as_mode.first]++;
}
#endif
if (xd->mode_info_context->mbmi.sb_type > BLOCK_SIZE_MB16X16) {
++cpi->sb_ymode_count[m];
} else {
++cpi->ymode_count[m];
}
if (m != I8X8_PRED)
++cpi->y_uv_mode_count[m][uvm];
else {
cpi->i8x8_mode_count[xd->block[0].bmi.as_mode.first]++;
cpi->i8x8_mode_count[xd->block[2].bmi.as_mode.first]++;
cpi->i8x8_mode_count[xd->block[8].bmi.as_mode.first]++;
cpi->i8x8_mode_count[xd->block[10].bmi.as_mode.first]++;
}
if (m == I4X4_PRED) {
int b = 0;
do {
int m = xd->block[b].bmi.as_mode.first;
#if CONFIG_NEWBINTRAMODES
if (m == B_CONTEXT_PRED) m -= CONTEXT_PRED_REPLACEMENTS;
#endif
++cpi->bmode_count[m];
} while (++b < 16);
}
}
// Experimental stub function to create a per MB zbin adjustment based on
// some previously calculated measure of MB activity.
static void adjust_act_zbin(VP9_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
}
static void encode_macroblock(VP9_COMP *cpi, TOKENEXTRA **t,
int output_enabled,
int mb_row, int mb_col) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *mi = xd->mode_info_context;
MB_MODE_INFO *const mbmi = &mi->mbmi;
const int mis = cm->mode_info_stride;
assert(xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_MB16X16);
#ifdef ENC_DEBUG
enc_debug = (cpi->common.current_video_frame == 11 && cm->show_frame &&
mb_row == 8 && mb_col == 0 && output_enabled);
if (enc_debug)
printf("Encode MB %d %d output %d\n", mb_row, mb_col, output_enabled);
#endif
if (cm->frame_type == KEY_FRAME) {
if (cpi->oxcf.tuning == VP8_TUNE_SSIM && output_enabled) {
// Adjust the zbin based on this MB rate.
adjust_act_zbin(cpi, x);
vp9_update_zbin_extra(cpi, x);
}
} else {
vp9_setup_interp_filters(xd, mbmi->interp_filter, cm);
if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
// Adjust the zbin based on this MB rate.
adjust_act_zbin(cpi, x);
}
// Experimental code. Special case for gf and arf zeromv modes.
// Increase zbin size to suppress noise
cpi->zbin_mode_boost = 0;
if (cpi->zbin_mode_boost_enabled) {
if (mbmi->ref_frame != INTRA_FRAME) {
if (mbmi->mode == ZEROMV) {
if (mbmi->ref_frame != LAST_FRAME)
cpi->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
else
cpi->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST;
} else if (mbmi->mode == SPLITMV)
cpi->zbin_mode_boost = SPLIT_MV_ZBIN_BOOST;
else
cpi->zbin_mode_boost = MV_ZBIN_BOOST;
} else {
cpi->zbin_mode_boost = INTRA_ZBIN_BOOST;
}
}
vp9_update_zbin_extra(cpi, x);
}
if (mbmi->ref_frame == INTRA_FRAME) {
#if 0 // def ENC_DEBUG
if (enc_debug) {
printf("Mode %d skip %d tx_size %d\n", mbmi->mode, x->skip,
mbmi->txfm_size);
}
#endif
if (mbmi->mode == I4X4_PRED) {
vp9_encode_intra16x16mbuv(cm, x);
vp9_encode_intra4x4mby(x);
} else if (mbmi->mode == I8X8_PRED) {
vp9_encode_intra8x8mby(x);
vp9_encode_intra8x8mbuv(x);
} else {
vp9_encode_intra16x16mbuv(cm, x);
vp9_encode_intra16x16mby(cm, x);
}
if (output_enabled)
sum_intra_stats(cpi, x);
} else {
int ref_fb_idx, second_ref_fb_idx;
#ifdef ENC_DEBUG
if (enc_debug)
printf("Mode %d skip %d tx_size %d ref %d ref2 %d mv %d %d interp %d\n",
mbmi->mode, x->skip, mbmi->txfm_size,
mbmi->ref_frame, mbmi->second_ref_frame,
mbmi->mv[0].as_mv.row, mbmi->mv[0].as_mv.col,
mbmi->interp_filter);
#endif
assert(cm->frame_type != KEY_FRAME);
if (mbmi->ref_frame == LAST_FRAME)
ref_fb_idx = cpi->common.ref_frame_map[cpi->lst_fb_idx];
else if (mbmi->ref_frame == GOLDEN_FRAME)
ref_fb_idx = cpi->common.ref_frame_map[cpi->gld_fb_idx];
else
ref_fb_idx = cpi->common.ref_frame_map[cpi->alt_fb_idx];
if (mbmi->second_ref_frame > 0) {
if (mbmi->second_ref_frame == LAST_FRAME)
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->lst_fb_idx];
else if (mbmi->second_ref_frame == GOLDEN_FRAME)
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->gld_fb_idx];
else
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->alt_fb_idx];
}
setup_pre_planes(xd,
&cpi->common.yv12_fb[ref_fb_idx],
mbmi->second_ref_frame > 0 ? &cpi->common.yv12_fb[second_ref_fb_idx]
: NULL,
mb_row, mb_col, xd->scale_factor, xd->scale_factor_uv);
if (!x->skip) {
vp9_encode_inter16x16(cm, x, mb_row, mb_col);
} else {
vp9_build_inter_predictors_sb(xd, mb_row, mb_col, BLOCK_SIZE_MB16X16);
#if CONFIG_COMP_INTERINTRA_PRED
if (xd->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME) {
vp9_build_interintra_predictors(xd,
xd->plane[0].dst.buf,
xd->plane[1].dst.buf,
xd->plane[2].dst.buf,
xd->plane[0].dst.stride,
xd->plane[1].dst.stride,
BLOCK_SIZE_MB16X16);
}
#endif
}
}
if (!x->skip) {
#ifdef ENC_DEBUG
if (enc_debug) {
int i, j;
printf("\n");
printf("qcoeff\n");
for (i = 0; i < 384; i++) {
printf("%3d ", xd->qcoeff[i]);
if (i % 16 == 15) printf("\n");
}
printf("\n");
printf("predictor\n");
for (i = 0; i < 384; i++) {
printf("%3d ", xd->predictor[i]);
if (i % 16 == 15) printf("\n");
}
printf("\n");
printf("src_diff\n");
for (i = 0; i < 384; i++) {
printf("%3d ", x->src_diff[i]);
if (i % 16 == 15) printf("\n");
}
printf("\n");
printf("diff\n");
for (i = 0; i < 384; i++) {
printf("%3d ", xd->block[0].diff[i]);
if (i % 16 == 15) printf("\n");
}
printf("\n");
printf("final y\n");
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++)
printf("%3d ", xd->plane[0].dst.buf[i * xd->plane[0].dst.stride + j]);
printf("\n");
}
printf("\n");
printf("final u\n");
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++)
printf("%3d ", xd->plane[1].dst.buf[i * xd->plane[1].dst.stride + j]);
printf("\n");
}
printf("\n");
printf("final v\n");
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++)
printf("%3d ", xd->plane[2].dst.buf[i * xd->plane[1].dst.stride + j]);
printf("\n");
}
fflush(stdout);
}
#endif
vp9_tokenize_mb(cpi, xd, t, !output_enabled);
} else {
// FIXME(rbultje): not tile-aware (mi - 1)
int mb_skip_context =
(mi - 1)->mbmi.mb_skip_coeff + (mi - mis)->mbmi.mb_skip_coeff;
mbmi->mb_skip_coeff = 1;
if (output_enabled)
cpi->skip_true_count[mb_skip_context]++;
vp9_reset_sb_tokens_context(xd, BLOCK_SIZE_MB16X16);
}
if (output_enabled) {
int segment_id = mbmi->segment_id;
if (cpi->common.txfm_mode == TX_MODE_SELECT &&
!(mbmi->mb_skip_coeff ||
vp9_segfeature_active(&x->e_mbd, segment_id, SEG_LVL_SKIP))) {
assert(mbmi->txfm_size <= TX_16X16);
if (mbmi->mode != I4X4_PRED && mbmi->mode != I8X8_PRED &&
mbmi->mode != SPLITMV) {
cpi->txfm_count_16x16p[mbmi->txfm_size]++;
} else if (mbmi->mode == I8X8_PRED ||
(mbmi->mode == SPLITMV &&
mbmi->partitioning != PARTITIONING_4X4)) {
cpi->txfm_count_8x8p[mbmi->txfm_size]++;
}
} else if (mbmi->mode != I4X4_PRED && mbmi->mode != I8X8_PRED &&
mbmi->mode != SPLITMV && cpi->common.txfm_mode >= ALLOW_16X16) {
mbmi->txfm_size = TX_16X16;
} else if (mbmi->mode != I4X4_PRED &&
!(mbmi->mode == SPLITMV &&
mbmi->partitioning == PARTITIONING_4X4) &&
cpi->common.txfm_mode >= ALLOW_8X8) {
mbmi->txfm_size = TX_8X8;
} else {
mbmi->txfm_size = TX_4X4;
}
}
}
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
int output_enabled, int mb_row, int mb_col,
BLOCK_SIZE_TYPE bsize) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
int n;
MODE_INFO *mi = x->e_mbd.mode_info_context;
unsigned int segment_id = mi->mbmi.segment_id;
const int mis = cm->mode_info_stride;
const int bwl = mb_width_log2(bsize);
const int bw = 1 << bwl, bh = 1 << mb_height_log2(bsize);
if (cm->frame_type == KEY_FRAME) {
if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
adjust_act_zbin(cpi, x);
vp9_update_zbin_extra(cpi, x);
}
} else {
vp9_setup_interp_filters(xd, xd->mode_info_context->mbmi.interp_filter, cm);
if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
// Adjust the zbin based on this MB rate.
adjust_act_zbin(cpi, x);
}
// Experimental code. Special case for gf and arf zeromv modes.
// Increase zbin size to suppress noise
cpi->zbin_mode_boost = 0;
if (cpi->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->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
else
cpi->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST;
} else if (xd->mode_info_context->mbmi.mode == SPLITMV) {
cpi->zbin_mode_boost = SPLIT_MV_ZBIN_BOOST;
} else {
cpi->zbin_mode_boost = MV_ZBIN_BOOST;
}
} else {
cpi->zbin_mode_boost = INTRA_ZBIN_BOOST;
}
}
vp9_update_zbin_extra(cpi, x);
}
if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
vp9_build_intra_predictors_sby_s(&x->e_mbd, bsize);
vp9_build_intra_predictors_sbuv_s(&x->e_mbd, bsize);
if (output_enabled)
sum_intra_stats(cpi, x);
} else {
int ref_fb_idx, second_ref_fb_idx;
assert(cm->frame_type != KEY_FRAME);
if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)
ref_fb_idx = cpi->common.ref_frame_map[cpi->lst_fb_idx];
else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME)
ref_fb_idx = cpi->common.ref_frame_map[cpi->gld_fb_idx];
else
ref_fb_idx = cpi->common.ref_frame_map[cpi->alt_fb_idx];
if (xd->mode_info_context->mbmi.second_ref_frame > 0) {
if (xd->mode_info_context->mbmi.second_ref_frame == LAST_FRAME)
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->lst_fb_idx];
else if (xd->mode_info_context->mbmi.second_ref_frame == GOLDEN_FRAME)
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->gld_fb_idx];
else
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->alt_fb_idx];
}
setup_pre_planes(xd,
&cpi->common.yv12_fb[ref_fb_idx],
xd->mode_info_context->mbmi.second_ref_frame > 0
? &cpi->common.yv12_fb[second_ref_fb_idx] : NULL,
mb_row, mb_col, xd->scale_factor, xd->scale_factor_uv);
vp9_build_inter_predictors_sb(xd, mb_row, mb_col, bsize);
}
if (!x->skip) {
vp9_subtract_sb(x, bsize);
switch (xd->mode_info_context->mbmi.txfm_size) {
case TX_32X32:
vp9_transform_sby_32x32(x, bsize);
vp9_quantize_sby_32x32(x, bsize);
if (bsize == BLOCK_SIZE_SB64X64) {
vp9_transform_sbuv_32x32(x, bsize);
vp9_quantize_sbuv_32x32(x, bsize);
} else {
vp9_transform_sbuv_16x16(x, bsize);
vp9_quantize_sbuv_16x16(x, bsize);
}
if (x->optimize) {
vp9_optimize_sby_32x32(cm, x, bsize);
if (bsize == BLOCK_SIZE_SB64X64)
vp9_optimize_sbuv_32x32(cm, x, bsize);
else
vp9_optimize_sbuv_16x16(cm, x, bsize);
}
vp9_inverse_transform_sby_32x32(xd, bsize);
if (bsize == BLOCK_SIZE_SB64X64)
vp9_inverse_transform_sbuv_32x32(xd, bsize);
else
vp9_inverse_transform_sbuv_16x16(xd, bsize);
break;
case TX_16X16:
vp9_transform_sby_16x16(x, bsize);
vp9_quantize_sby_16x16(x, bsize);
if (bsize >= BLOCK_SIZE_SB32X32) {
vp9_transform_sbuv_16x16(x, bsize);
vp9_quantize_sbuv_16x16(x, bsize);
} else {
vp9_transform_sbuv_8x8(x, bsize);
vp9_quantize_sbuv_8x8(x, bsize);
}
if (x->optimize) {
vp9_optimize_sby_16x16(cm, x, bsize);
if (bsize >= BLOCK_SIZE_SB32X32)
vp9_optimize_sbuv_16x16(cm, x, bsize);
else
vp9_optimize_sbuv_8x8(cm, x, bsize);
}
vp9_inverse_transform_sby_16x16(xd, bsize);
if (bsize >= BLOCK_SIZE_SB32X32)
vp9_inverse_transform_sbuv_16x16(xd, bsize);
else
vp9_inverse_transform_sbuv_8x8(xd, bsize);
break;
case TX_8X8:
vp9_transform_sby_8x8(x, bsize);
vp9_transform_sbuv_8x8(x, bsize);
vp9_quantize_sby_8x8(x, bsize);
vp9_quantize_sbuv_8x8(x, bsize);
if (x->optimize) {
vp9_optimize_sby_8x8(cm, x, bsize);
vp9_optimize_sbuv_8x8(cm, x, bsize);
}
vp9_inverse_transform_sby_8x8(xd, bsize);
vp9_inverse_transform_sbuv_8x8(xd, bsize);
break;
case TX_4X4:
vp9_transform_sby_4x4(x, bsize);
vp9_transform_sbuv_4x4(x, bsize);
vp9_quantize_sby_4x4(x, bsize);
vp9_quantize_sbuv_4x4(x, bsize);
if (x->optimize) {
vp9_optimize_sby_4x4(cm, x, bsize);
vp9_optimize_sbuv_4x4(cm, x, bsize);
}
vp9_inverse_transform_sby_4x4(xd, bsize);
vp9_inverse_transform_sbuv_4x4(xd, bsize);
break;
default: assert(0);
}
vp9_recon_sb_c(xd, bsize);
vp9_tokenize_sb(cpi, &x->e_mbd, t, !output_enabled, bsize);
} else {
// FIXME(rbultje): not tile-aware (mi - 1)
int mb_skip_context =
(mi - 1)->mbmi.mb_skip_coeff + (mi - mis)->mbmi.mb_skip_coeff;
xd->mode_info_context->mbmi.mb_skip_coeff = 1;
if (output_enabled)
cpi->skip_true_count[mb_skip_context]++;
vp9_reset_sb_tokens_context(xd, bsize);
}
// copy skip flag on all mb_mode_info contexts in this SB
// if this was a skip at this txfm size
for (n = 1; n < bw * bh; n++) {
const int x_idx = n & (bw - 1), y_idx = n >> bwl;
if (mb_col + x_idx < cm->mb_cols && mb_row + y_idx < cm->mb_rows)
mi[x_idx + y_idx * mis].mbmi.mb_skip_coeff = mi->mbmi.mb_skip_coeff;
}
if (output_enabled) {
if (cm->txfm_mode == TX_MODE_SELECT &&
!(mi->mbmi.mb_skip_coeff ||
vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP))) {
if (bsize >= BLOCK_SIZE_SB32X32) {
cpi->txfm_count_32x32p[mi->mbmi.txfm_size]++;
} else {
cpi->txfm_count_16x16p[mi->mbmi.txfm_size]++;
}
} else {
int x, y;
TX_SIZE sz = (cm->txfm_mode == TX_MODE_SELECT) ? TX_32X32 : cm->txfm_mode;
if (sz == TX_32X32 && bsize < BLOCK_SIZE_SB32X32)
sz = TX_16X16;
for (y = 0; y < bh; y++) {
for (x = 0; x < bw; x++) {
if (mb_col + x < cm->mb_cols && mb_row + y < cm->mb_rows) {
mi[mis * y + x].mbmi.txfm_size = sz;
}
}
}
}
}
}
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