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vpx/vp8/encoder/encodeframe.c
Timothy B. Terriberry e04e293522 Make the quantizer exact. 
This replaces the approximate division-by-multiplication in the
 quantizer with an exact one that costs just one add and one
 shift extra.
The asm versions have not been updated in this patch, and thus
 have been disabled, since the new method requires different
 multipliers which are not compatible with the old method.

Change-Id: I53ac887af0f969d906e464c88b1f4be69c6b1206
2010-07-23 08:48:01 -07:00

1246 lines
40 KiB
C
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/*
* Copyright (c) 2010 The VP8 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 "common.h"
#include "onyx_int.h"
#include "extend.h"
#include "entropymode.h"
#include "quant_common.h"
#include "segmentation_common.h"
#include "setupintrarecon.h"
#include "encodeintra.h"
#include "reconinter.h"
#include "rdopt.h"
#include "pickinter.h"
#include "findnearmv.h"
#include "reconintra.h"
#include <stdio.h>
#include <limits.h>
#include "subpixel.h"
#include "vpx_ports/vpx_timer.h"
#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
extern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCKD *x, TOKENEXTRA **t) ;
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);
void vp8_build_block_offsets(MACROBLOCK *x);
void vp8_setup_block_ptrs(MACROBLOCK *x);
int vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset);
int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t);
#ifdef MODE_STATS
unsigned int inter_y_modes[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
unsigned int inter_uv_modes[4] = {0, 0, 0, 0};
unsigned int inter_b_modes[15] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
unsigned int y_modes[5] = {0, 0, 0, 0, 0};
unsigned int uv_modes[4] = {0, 0, 0, 0};
unsigned int b_modes[14] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
#endif
// The first four entries are dummy values
static const int qrounding_factors[129] =
{
56, 56, 56, 56, 56, 56, 56, 56,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48, 48, 48, 48, 48, 48, 48, 48,
48,
};
static const int qzbin_factors[129] =
{
64, 64, 64, 64, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80,
80,
};
static void vp8cx_invert_quant(short *quant, short *shift, short d)
{
unsigned t;
int l;
t = d;
for(l = 0; t > 1; l++)
t>>=1;
t = 1 + (1<<(16+l))/d;
*quant = (short)(t - (1<<16));
*shift = l;
}
void vp8cx_init_quantizer(VP8_COMP *cpi)
{
int r, c;
int i;
int quant_val;
int Q;
int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
for (Q = 0; Q < QINDEX_RANGE; Q++)
{
// dc values
quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
vp8cx_invert_quant(cpi->Y1quant[Q][0] + 0,
cpi->Y1quant_shift[Q][0] + 0, quant_val);
cpi->Y1zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y1round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->common.Y1dequant[Q][0][0] = quant_val;
cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
vp8cx_invert_quant(cpi->Y2quant[Q][0] + 0,
cpi->Y2quant_shift[Q][0] + 0, quant_val);
cpi->Y2zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->common.Y2dequant[Q][0][0] = quant_val;
cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
vp8cx_invert_quant(cpi->UVquant[Q][0] + 0,
cpi->UVquant_shift[Q][0] + 0, quant_val);
cpi->UVzbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
cpi->UVround[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->common.UVdequant[Q][0][0] = quant_val;
cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
// all the ac values = ;
for (i = 1; i < 16; i++)
{
int rc = vp8_default_zig_zag1d[i];
r = (rc >> 2);
c = (rc & 3);
quant_val = vp8_ac_yquant(Q);
vp8cx_invert_quant(cpi->Y1quant[Q][r] + c,
cpi->Y1quant_shift[Q][r] + c, quant_val);
cpi->Y1zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y1round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->common.Y1dequant[Q][r][c] = quant_val;
cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
vp8cx_invert_quant(cpi->Y2quant[Q][r] + c,
cpi->Y2quant_shift[Q][r] + c, quant_val);
cpi->Y2zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->Y2round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->common.Y2dequant[Q][r][c] = quant_val;
cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
vp8cx_invert_quant(cpi->UVquant[Q][r] + c,
cpi->UVquant_shift[Q][r] + c, quant_val);
cpi->UVzbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
cpi->UVround[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
cpi->common.UVdequant[Q][r][c] = quant_val;
cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
}
}
}
void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
{
int i;
int QIndex;
MACROBLOCKD *xd = &x->e_mbd;
MB_MODE_INFO *mbmi = &xd->mbmi;
int zbin_extra;
// Select the baseline MB Q index.
if (xd->segmentation_enabled)
{
// Abs Value
if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
// Delta Value
else
{
QIndex = cpi->common.base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0; // Clamp to valid range
}
}
else
QIndex = cpi->common.base_qindex;
// Y
zbin_extra = (cpi->common.Y1dequant[QIndex][0][1] * (cpi->zbin_over_quant + cpi->zbin_mode_boost)) >> 7;
for (i = 0; i < 16; i++)
{
x->block[i].quant = cpi->Y1quant[QIndex];
x->block[i].quant_shift = cpi->Y1quant_shift[QIndex];
x->block[i].zbin = cpi->Y1zbin[QIndex];
x->block[i].round = cpi->Y1round[QIndex];
x->e_mbd.block[i].dequant = cpi->common.Y1dequant[QIndex];
x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_y1[QIndex];
x->block[i].zbin_extra = (short)zbin_extra;
}
// UV
zbin_extra = (cpi->common.UVdequant[QIndex][0][1] * (cpi->zbin_over_quant + cpi->zbin_mode_boost)) >> 7;
for (i = 16; i < 24; i++)
{
x->block[i].quant = cpi->UVquant[QIndex];
x->block[i].quant_shift = cpi->UVquant_shift[QIndex];
x->block[i].zbin = cpi->UVzbin[QIndex];
x->block[i].round = cpi->UVround[QIndex];
x->e_mbd.block[i].dequant = cpi->common.UVdequant[QIndex];
x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_uv[QIndex];
x->block[i].zbin_extra = (short)zbin_extra;
}
// Y2
zbin_extra = (cpi->common.Y2dequant[QIndex][0][1] * ((cpi->zbin_over_quant / 2) + cpi->zbin_mode_boost)) >> 7;
x->block[24].quant = cpi->Y2quant[QIndex];
x->block[24].quant_shift = cpi->Y2quant_shift[QIndex];
x->block[24].zbin = cpi->Y2zbin[QIndex];
x->block[24].round = cpi->Y2round[QIndex];
x->e_mbd.block[24].dequant = cpi->common.Y2dequant[QIndex];
x->block[24].zrun_zbin_boost = cpi->zrun_zbin_boost_y2[QIndex];
x->block[24].zbin_extra = (short)zbin_extra;
}
void vp8cx_frame_init_quantizer(VP8_COMP *cpi)
{
// vp8cx_init_quantizer() is first called in vp8_create_compressor(). A check is added here so that vp8cx_init_quantizer() is only called
// when these values are not all zero.
if (cpi->common.y1dc_delta_q | cpi->common.y2dc_delta_q | cpi->common.uvdc_delta_q | cpi->common.y2ac_delta_q | cpi->common.uvac_delta_q)
{
vp8cx_init_quantizer(cpi);
}
// MB level quantizer setup
vp8cx_mb_init_quantizer(cpi, &cpi->mb);
}
static
void encode_mb_row(VP8_COMP *cpi,
VP8_COMMON *cm,
int mb_row,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp,
int *segment_counts,
int *totalrate)
{
int i;
int recon_yoffset, recon_uvoffset;
int mb_col;
int recon_y_stride = cm->last_frame.y_stride;
int recon_uv_stride = cm->last_frame.uv_stride;
int seg_map_index = (mb_row * cpi->common.mb_cols);
// reset above block coeffs
xd->above_context[Y1CONTEXT] = cm->above_context[Y1CONTEXT];
xd->above_context[UCONTEXT ] = cm->above_context[UCONTEXT ];
xd->above_context[VCONTEXT ] = cm->above_context[VCONTEXT ];
xd->above_context[Y2CONTEXT] = cm->above_context[Y2CONTEXT];
xd->up_available = (mb_row != 0);
recon_yoffset = (mb_row * recon_y_stride * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8);
cpi->tplist[mb_row].start = *tp;
//printf("Main mb_row = %d\n", mb_row);
// for each macroblock col in image
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
{
// Distance of Mb to the various image edges.
// These specified to 8th pel as they are always compared to values that are in 1/8th pel units
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
xd->mb_to_top_edge = -((mb_row * 16) << 3);
xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
// Set up limit values for motion vectors used to prevent them extending outside the UMV borders
x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
xd->dst.y_buffer = cm->new_frame.y_buffer + recon_yoffset;
xd->dst.u_buffer = cm->new_frame.u_buffer + recon_uvoffset;
xd->dst.v_buffer = cm->new_frame.v_buffer + recon_uvoffset;
xd->left_available = (mb_col != 0);
// Is segmentation enabled
// MB level adjutment to quantizer
if (xd->segmentation_enabled)
{
// Code to set segment id in xd->mbmi.segment_id for current MB (with range checking)
if (cpi->segmentation_map[seg_map_index+mb_col] <= 3)
xd->mbmi.segment_id = cpi->segmentation_map[seg_map_index+mb_col];
else
xd->mbmi.segment_id = 0;
vp8cx_mb_init_quantizer(cpi, x);
}
else
xd->mbmi.segment_id = 0; // Set to Segment 0 by default
x->active_ptr = cpi->active_map + seg_map_index + mb_col;
if (cm->frame_type == KEY_FRAME)
{
*totalrate += vp8cx_encode_intra_macro_block(cpi, x, tp);
#ifdef MODE_STATS
y_modes[xd->mbmi.mode] ++;
#endif
}
else
{
*totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset);
#ifdef MODE_STATS
inter_y_modes[xd->mbmi.mode] ++;
if (xd->mbmi.mode == SPLITMV)
{
int b;
for (b = 0; b < xd->mbmi.partition_count; b++)
{
inter_b_modes[xd->mbmi.partition_bmi[b].mode] ++;
}
}
#endif
// Count of last ref frame 0,0 useage
if ((xd->mbmi.mode == ZEROMV) && (xd->mbmi.ref_frame == LAST_FRAME))
cpi->inter_zz_count ++;
// Special case code for cyclic refresh
// If cyclic update enabled then copy xd->mbmi.segment_id; (which may have been updated based on mode
// during vp8cx_encode_inter_macroblock()) back into the global sgmentation map
if (cpi->cyclic_refresh_mode_enabled && xd->segmentation_enabled)
{
cpi->segmentation_map[seg_map_index+mb_col] = xd->mbmi.segment_id;
// If the block has been refreshed mark it as clean (the magnitude of the -ve influences how long it will be before we consider another refresh):
// Else if it was coded (last frame 0,0) and has not already been refreshed then mark it as a candidate for cleanup next time (marked 0)
// else mark it as dirty (1).
if (xd->mbmi.segment_id)
cpi->cyclic_refresh_map[seg_map_index+mb_col] = -1;
else if ((xd->mbmi.mode == ZEROMV) && (xd->mbmi.ref_frame == LAST_FRAME))
{
if (cpi->cyclic_refresh_map[seg_map_index+mb_col] == 1)
cpi->cyclic_refresh_map[seg_map_index+mb_col] = 0;
}
else
cpi->cyclic_refresh_map[seg_map_index+mb_col] = 1;
}
}
cpi->tplist[mb_row].stop = *tp;
xd->gf_active_ptr++; // Increment pointer into gf useage flags structure for next mb
// store macroblock mode info into context array
vpx_memcpy(&xd->mode_info_context->mbmi, &xd->mbmi, sizeof(xd->mbmi));
for (i = 0; i < 16; i++)
vpx_memcpy(&xd->mode_info_context->bmi[i], &xd->block[i].bmi, sizeof(xd->block[i].bmi));
// adjust to the next column of macroblocks
x->src.y_buffer += 16;
x->src.u_buffer += 8;
x->src.v_buffer += 8;
recon_yoffset += 16;
recon_uvoffset += 8;
// Keep track of segment useage
segment_counts[xd->mbmi.segment_id] ++;
// skip to next mb
xd->mode_info_context++;
xd->above_context[Y1CONTEXT] += 4;
xd->above_context[UCONTEXT ] += 2;
xd->above_context[VCONTEXT ] += 2;
xd->above_context[Y2CONTEXT] ++;
cpi->current_mb_col_main = mb_col;
}
//extend the recon for intra prediction
vp8_extend_mb_row(
&cm->new_frame,
xd->dst.y_buffer + 16,
xd->dst.u_buffer + 8,
xd->dst.v_buffer + 8);
// this is to account for the border
xd->mode_info_context++;
}
void vp8_encode_frame(VP8_COMP *cpi)
{
int mb_row;
MACROBLOCK *const x = & cpi->mb;
VP8_COMMON *const cm = & cpi->common;
MACROBLOCKD *const xd = & x->e_mbd;
int i;
TOKENEXTRA *tp = cpi->tok;
int segment_counts[MAX_MB_SEGMENTS];
int totalrate;
if (cm->frame_type != KEY_FRAME)
{
if (cm->mcomp_filter_type == SIXTAP)
{
xd->subpixel_predict = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap4x4);
xd->subpixel_predict8x4 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap8x4);
xd->subpixel_predict8x8 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap8x8);
xd->subpixel_predict16x16 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap16x16);
}
else
{
xd->subpixel_predict = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear4x4);
xd->subpixel_predict8x4 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear8x4);
xd->subpixel_predict8x8 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear8x8);
xd->subpixel_predict16x16 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear16x16);
}
}
//else // Key Frame
//{
// For key frames make sure the intra ref frame probability value
// is set to "all intra"
//cpi->prob_intra_coded = 255;
//}
xd->gf_active_ptr = (signed char *)cm->gf_active_flags; // Point to base of GF active flags data structure
x->vector_range = 32;
// Count of MBs using the alternate Q if any
cpi->alt_qcount = 0;
// Reset frame count of inter 0,0 motion vector useage.
cpi->inter_zz_count = 0;
vpx_memset(segment_counts, 0, sizeof(segment_counts));
cpi->prediction_error = 0;
cpi->intra_error = 0;
cpi->skip_true_count = 0;
cpi->skip_false_count = 0;
#if 0
// Experimental code
cpi->frame_distortion = 0;
cpi->last_mb_distortion = 0;
#endif
totalrate = 0;
xd->mode_info = cm->mi - 1;
xd->mode_info_context = cm->mi;
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;
vp8_zero(cpi->MVcount);
// vp8_zero( Contexts)
vp8_zero(cpi->coef_counts);
// reset intra mode contexts
if (cm->frame_type == KEY_FRAME)
vp8_init_mbmode_probs(cm);
vp8cx_frame_init_quantizer(cpi);
if (cpi->compressor_speed == 2)
{
if (cpi->oxcf.cpu_used < 0)
cpi->Speed = -(cpi->oxcf.cpu_used);
else
vp8_auto_select_speed(cpi);
}
vp8_initialize_rd_consts(cpi, vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
//vp8_initialize_rd_consts( cpi, vp8_dc_quant(cpi->avg_frame_qindex, cm->y1dc_delta_q) );
vp8cx_initialize_me_consts(cpi, cm->base_qindex);
//vp8cx_initialize_me_consts( cpi, cpi->avg_frame_qindex);
// Copy data over into macro block data sturctures.
x->src = * cpi->Source;
xd->pre = cm->last_frame;
xd->dst = cm->new_frame;
// set up frame new frame for intra coded blocks
vp8_setup_intra_recon(&cm->new_frame);
vp8_build_block_offsets(x);
vp8_setup_block_dptrs(&x->e_mbd);
vp8_setup_block_ptrs(x);
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
#if 0
// Experimental rd code
// 2 Pass - Possibly set Rdmult based on last frame distortion + this frame target bits or other metrics
// such as cpi->rate_correction_factor that indicate relative complexity.
/*if ( cpi->pass == 2 && (cpi->last_frame_distortion > 0) && (cpi->target_bits_per_mb > 0) )
{
//x->rdmult = ((cpi->last_frame_distortion * 256)/cpi->common.MBs)/ cpi->target_bits_per_mb;
x->rdmult = (int)(cpi->RDMULT * cpi->rate_correction_factor);
}
else
x->rdmult = cpi->RDMULT; */
//x->rdmult = (int)(cpi->RDMULT * pow( (cpi->rate_correction_factor * 2.0), 0.75 ));
#endif
xd->mbmi.mode = DC_PRED;
xd->mbmi.uv_mode = DC_PRED;
xd->left_context = cm->left_context;
vp8_zero(cpi->count_mb_ref_frame_usage)
vp8_zero(cpi->ymode_count)
vp8_zero(cpi->uv_mode_count)
x->mvc = cm->fc.mvc;
// vp8_zero( entropy_stats)
{
ENTROPY_CONTEXT **p = cm->above_context;
const size_t L = cm->mb_cols;
vp8_zero_array(p [Y1CONTEXT], L * 4)
vp8_zero_array(p [ UCONTEXT], L * 2)
vp8_zero_array(p [ VCONTEXT], L * 2)
vp8_zero_array(p [Y2CONTEXT], L)
}
{
struct vpx_usec_timer emr_timer;
vpx_usec_timer_start(&emr_timer);
if (!cpi->b_multi_threaded)
{
// for each macroblock row in image
for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
{
vp8_zero(cm->left_context)
encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
// adjust to the next row of mbs
x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
}
cpi->tok_count = tp - cpi->tok;
}
else
{
#if CONFIG_MULTITHREAD
vp8cx_init_mbrthread_data(cpi, x, cpi->mb_row_ei, 1, cpi->encoding_thread_count);
for (mb_row = 0; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1))
{
int i;
cpi->current_mb_col_main = -1;
for (i = 0; i < cpi->encoding_thread_count; i++)
{
if ((mb_row + i + 1) >= cm->mb_rows)
break;
cpi->mb_row_ei[i].mb_row = mb_row + i + 1;
cpi->mb_row_ei[i].tp = cpi->tok + (mb_row + i + 1) * (cm->mb_cols * 16 * 24);
cpi->mb_row_ei[i].current_mb_col = -1;
//SetEvent(cpi->h_event_mbrencoding[i]);
sem_post(&cpi->h_event_mbrencoding[i]);
}
vp8_zero(cm->left_context)
tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24);
encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
// adjust to the next row of mbs
x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
if (mb_row < cm->mb_rows - 1)
//WaitForSingleObject(cpi->h_event_main, INFINITE);
sem_wait(&cpi->h_event_main);
}
/*
for( ;mb_row<cm->mb_rows; mb_row ++)
{
vp8_zero( cm->left_context)
tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24);
encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
// adjust to the next row of mbs
x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
}
*/
cpi->tok_count = 0;
for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
{
cpi->tok_count += cpi->tplist[mb_row].stop - cpi->tplist[mb_row].start;
}
if (xd->segmentation_enabled)
{
int i, j;
if (xd->segmentation_enabled)
{
for (i = 0; i < cpi->encoding_thread_count; i++)
{
for (j = 0; j < 4; j++)
segment_counts[j] += cpi->mb_row_ei[i].segment_counts[j];
}
}
}
for (i = 0; i < cpi->encoding_thread_count; i++)
{
totalrate += cpi->mb_row_ei[i].totalrate;
}
#endif
}
vpx_usec_timer_mark(&emr_timer);
cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer);
}
// Work out the segment probabilites if segmentation is enabled
if (xd->segmentation_enabled)
{
int tot_count;
int i;
// Set to defaults
vpx_memset(xd->mb_segment_tree_probs, 255 , sizeof(xd->mb_segment_tree_probs));
tot_count = segment_counts[0] + segment_counts[1] + segment_counts[2] + segment_counts[3];
if (tot_count)
{
xd->mb_segment_tree_probs[0] = ((segment_counts[0] + segment_counts[1]) * 255) / tot_count;
tot_count = segment_counts[0] + segment_counts[1];
if (tot_count > 0)
{
xd->mb_segment_tree_probs[1] = (segment_counts[0] * 255) / tot_count;
}
tot_count = segment_counts[2] + segment_counts[3];
if (tot_count > 0)
xd->mb_segment_tree_probs[2] = (segment_counts[2] * 255) / tot_count;
// Zero probabilities not allowed
for (i = 0; i < MB_FEATURE_TREE_PROBS; i ++)
{
if (xd->mb_segment_tree_probs[i] == 0)
xd->mb_segment_tree_probs[i] = 1;
}
}
}
// 256 rate units to the bit
cpi->projected_frame_size = totalrate >> 8; // projected_frame_size in units of BYTES
// Make a note of the percentage MBs coded Intra.
if (cm->frame_type == KEY_FRAME)
{
cpi->this_frame_percent_intra = 100;
}
else
{
int tot_modes;
tot_modes = cpi->count_mb_ref_frame_usage[INTRA_FRAME]
+ cpi->count_mb_ref_frame_usage[LAST_FRAME]
+ cpi->count_mb_ref_frame_usage[GOLDEN_FRAME]
+ cpi->count_mb_ref_frame_usage[ALTREF_FRAME];
if (tot_modes)
cpi->this_frame_percent_intra = cpi->count_mb_ref_frame_usage[INTRA_FRAME] * 100 / tot_modes;
}
#if 0
{
int cnt = 0;
int flag[2] = {0, 0};
for (cnt = 0; cnt < MVPcount; cnt++)
{
if (cm->fc.pre_mvc[0][cnt] != cm->fc.mvc[0][cnt])
{
flag[0] = 1;
vpx_memcpy(cm->fc.pre_mvc[0], cm->fc.mvc[0], MVPcount);
break;
}
}
for (cnt = 0; cnt < MVPcount; cnt++)
{
if (cm->fc.pre_mvc[1][cnt] != cm->fc.mvc[1][cnt])
{
flag[1] = 1;
vpx_memcpy(cm->fc.pre_mvc[1], cm->fc.mvc[1], MVPcount);
break;
}
}
if (flag[0] || flag[1])
vp8_build_component_cost_table(cpi->mb.mvcost, cpi->mb.mvsadcost, (const MV_CONTEXT *) cm->fc.mvc, flag);
}
#endif
// Adjust the projected reference frame useage probability numbers to reflect
// what we have just seen. This may be usefull when we make multiple itterations
// of the recode loop rather than continuing to use values from the previous frame.
if ((cm->frame_type != KEY_FRAME) && !cm->refresh_alt_ref_frame && !cm->refresh_golden_frame)
{
const int *const rfct = cpi->count_mb_ref_frame_usage;
const int rf_intra = rfct[INTRA_FRAME];
const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
if ((rf_intra + rf_inter) > 0)
{
cpi->prob_intra_coded = (rf_intra * 255) / (rf_intra + rf_inter);
if (cpi->prob_intra_coded < 1)
cpi->prob_intra_coded = 1;
if ((cm->frames_since_golden > 0) || cpi->source_alt_ref_active)
{
cpi->prob_last_coded = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128;
if (cpi->prob_last_coded < 1)
cpi->prob_last_coded = 1;
cpi->prob_gf_coded = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME])
? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128;
if (cpi->prob_gf_coded < 1)
cpi->prob_gf_coded = 1;
}
}
}
#if 0
// Keep record of the total distortion this time around for future use
cpi->last_frame_distortion = cpi->frame_distortion;
#endif
}
void vp8_setup_block_ptrs(MACROBLOCK *x)
{
int r, c;
int i;
for (r = 0; r < 4; r++)
{
for (c = 0; c < 4; c++)
{
x->block[r*4+c].src_diff = x->src_diff + r * 4 * 16 + c * 4;
}
}
for (r = 0; r < 2; r++)
{
for (c = 0; c < 2; c++)
{
x->block[16 + r*2+c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4;
}
}
for (r = 0; r < 2; r++)
{
for (c = 0; c < 2; c++)
{
x->block[20 + r*2+c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4;
}
}
x->block[24].src_diff = x->src_diff + 384;
for (i = 0; i < 25; i++)
{
x->block[i].coeff = x->coeff + i * 16;
}
}
void vp8_build_block_offsets(MACROBLOCK *x)
{
int block = 0;
int br, bc;
vp8_build_block_doffsets(&x->e_mbd);
// y blocks
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;
++block;
}
}
// u blocks
for (br = 0; br < 2; br++)
{
for (bc = 0; bc < 2; bc++)
{
BLOCK *this_block = &x->block[block];
this_block->base_src = &x->src.u_buffer;
this_block->src_stride = x->src.uv_stride;
this_block->src = 4 * br * this_block->src_stride + 4 * bc;
++block;
}
}
// v blocks
for (br = 0; br < 2; br++)
{
for (bc = 0; bc < 2; bc++)
{
BLOCK *this_block = &x->block[block];
this_block->base_src = &x->src.v_buffer;
this_block->src_stride = x->src.uv_stride;
this_block->src = 4 * br * this_block->src_stride + 4 * bc;
++block;
}
}
}
static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x)
{
const MACROBLOCKD *xd = & x->e_mbd;
const MB_PREDICTION_MODE m = xd->mbmi.mode;
const MB_PREDICTION_MODE uvm = xd->mbmi.uv_mode;
#ifdef MODE_STATS
const int is_key = cpi->common.frame_type == KEY_FRAME;
++ (is_key ? uv_modes : inter_uv_modes)[uvm];
if (m == B_PRED)
{
unsigned int *const bct = is_key ? b_modes : inter_b_modes;
int b = 0;
do
{
++ bct[xd->block[b].bmi.mode];
}
while (++b < 16);
}
#endif
++cpi->ymode_count[m];
++cpi->uv_mode_count[uvm];
}
int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t)
{
int Error4x4, Error16x16, error_uv;
B_PREDICTION_MODE intra_bmodes[16];
int rate4x4, rate16x16, rateuv;
int dist4x4, dist16x16, distuv;
int rate = 0;
int rate4x4_tokenonly = 0;
int rate16x16_tokenonly = 0;
int rateuv_tokenonly = 0;
int i;
x->e_mbd.mbmi.ref_frame = INTRA_FRAME;
#if !(CONFIG_REALTIME_ONLY)
if (cpi->sf.RD || cpi->compressor_speed != 2)
{
Error4x4 = vp8_rd_pick_intra4x4mby_modes(cpi, x, &rate4x4, &rate4x4_tokenonly, &dist4x4);
//save the b modes for possible later use
for (i = 0; i < 16; i++)
intra_bmodes[i] = x->e_mbd.block[i].bmi.mode;
Error16x16 = vp8_rd_pick_intra16x16mby_mode(cpi, x, &rate16x16, &rate16x16_tokenonly, &dist16x16);
error_uv = vp8_rd_pick_intra_mbuv_mode(cpi, x, &rateuv, &rateuv_tokenonly, &distuv);
x->e_mbd.mbmi.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
rate += rateuv;
if (Error4x4 < Error16x16)
{
rate += rate4x4;
x->e_mbd.mbmi.mode = B_PRED;
// get back the intra block modes
for (i = 0; i < 16; i++)
x->e_mbd.block[i].bmi.mode = intra_bmodes[i];
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
cpi->prediction_error += Error4x4 ;
#if 0
// Experimental RD code
cpi->frame_distortion += dist4x4;
#endif
}
else
{
vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
rate += rate16x16;
#if 0
// Experimental RD code
cpi->prediction_error += Error16x16;
cpi->frame_distortion += dist16x16;
#endif
}
sum_intra_stats(cpi, x);
vp8_tokenize_mb(cpi, &x->e_mbd, t);
}
else
#endif
{
int rate2, distortion2;
MB_PREDICTION_MODE mode, best_mode = DC_PRED;
int this_rd;
Error16x16 = INT_MAX;
for (mode = DC_PRED; mode <= TM_PRED; mode ++)
{
x->e_mbd.mbmi.mode = mode;
vp8_build_intra_predictors_mby_ptr(&x->e_mbd);
distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, get16x16prederror)(x->src.y_buffer, x->src.y_stride, x->e_mbd.predictor, 16, 0x7fffffff);
rate2 = x->mbmode_cost[x->e_mbd.frame_type][mode];
this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
if (Error16x16 > this_rd)
{
Error16x16 = this_rd;
best_mode = mode;
}
}
vp8_pick_intra4x4mby_modes(IF_RTCD(&cpi->rtcd), x, &rate2, &distortion2);
if (distortion2 == INT_MAX)
Error4x4 = INT_MAX;
else
Error4x4 = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
x->e_mbd.mbmi.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
if (Error4x4 < Error16x16)
{
x->e_mbd.mbmi.mode = B_PRED;
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
cpi->prediction_error += Error4x4;
}
else
{
x->e_mbd.mbmi.mode = best_mode;
vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
cpi->prediction_error += Error16x16;
}
vp8_pick_intra_mbuv_mode(x);
vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
sum_intra_stats(cpi, x);
vp8_tokenize_mb(cpi, &x->e_mbd, t);
}
return rate;
}
#ifdef SPEEDSTATS
extern int cnt_pm;
#endif
extern void vp8_fix_contexts(VP8_COMP *cpi, MACROBLOCKD *x);
int vp8cx_encode_inter_macroblock
(
VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
int recon_yoffset, int recon_uvoffset
)
{
MACROBLOCKD *const xd = &x->e_mbd;
int inter_error;
int intra_error = 0;
int rate;
int distortion;
x->skip = 0;
if (xd->segmentation_enabled)
x->encode_breakout = cpi->segment_encode_breakout[xd->mbmi.segment_id];
else
x->encode_breakout = cpi->oxcf.encode_breakout;
#if !(CONFIG_REALTIME_ONLY)
if (cpi->sf.RD)
{
inter_error = vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, &distortion, &intra_error);
}
else
#endif
inter_error = vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, &distortion, &intra_error);
cpi->prediction_error += inter_error;
cpi->intra_error += intra_error;
#if 0
// Experimental RD code
cpi->frame_distortion += distortion;
cpi->last_mb_distortion = distortion;
#endif
// MB level adjutment to quantizer setup
if (xd->segmentation_enabled || cpi->zbin_mode_boost_enabled)
{
// If cyclic update enabled
if (cpi->cyclic_refresh_mode_enabled)
{
// Clear segment_id back to 0 if not coded (last frame 0,0)
if ((xd->mbmi.segment_id == 1) &&
((xd->mbmi.ref_frame != LAST_FRAME) || (xd->mbmi.mode != ZEROMV)))
{
xd->mbmi.segment_id = 0;
}
}
// Experimental code. Special case for gf and arf zeromv modes. Increase zbin size to supress noise
if (cpi->zbin_mode_boost_enabled)
{
if ((xd->mbmi.mode == ZEROMV) && (xd->mbmi.ref_frame != LAST_FRAME))
cpi->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
else
cpi->zbin_mode_boost = 0;
}
vp8cx_mb_init_quantizer(cpi, x);
}
cpi->count_mb_ref_frame_usage[xd->mbmi.ref_frame] ++;
if (xd->mbmi.ref_frame == INTRA_FRAME)
{
x->e_mbd.mbmi.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
if (xd->mbmi.mode == B_PRED)
{
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
}
else
{
vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
}
sum_intra_stats(cpi, x);
}
else
{
MV best_ref_mv;
MV nearest, nearby;
int mdcounts[4];
vp8_find_near_mvs(xd, xd->mode_info_context,
&nearest, &nearby, &best_ref_mv, mdcounts, xd->mbmi.ref_frame, cpi->common.ref_frame_sign_bias);
vp8_build_uvmvs(xd, cpi->common.full_pixel);
// store motion vectors in our motion vector list
if (xd->mbmi.ref_frame == LAST_FRAME)
{
// Set up pointers for this macro block into the previous frame recon buffer
xd->pre.y_buffer = cpi->common.last_frame.y_buffer + recon_yoffset;
xd->pre.u_buffer = cpi->common.last_frame.u_buffer + recon_uvoffset;
xd->pre.v_buffer = cpi->common.last_frame.v_buffer + recon_uvoffset;
}
else if (xd->mbmi.ref_frame == GOLDEN_FRAME)
{
// Set up pointers for this macro block into the golden frame recon buffer
xd->pre.y_buffer = cpi->common.golden_frame.y_buffer + recon_yoffset;
xd->pre.u_buffer = cpi->common.golden_frame.u_buffer + recon_uvoffset;
xd->pre.v_buffer = cpi->common.golden_frame.v_buffer + recon_uvoffset;
}
else
{
// Set up pointers for this macro block into the alternate reference frame recon buffer
xd->pre.y_buffer = cpi->common.alt_ref_frame.y_buffer + recon_yoffset;
xd->pre.u_buffer = cpi->common.alt_ref_frame.u_buffer + recon_uvoffset;
xd->pre.v_buffer = cpi->common.alt_ref_frame.v_buffer + recon_uvoffset;
}
if (xd->mbmi.mode == SPLITMV)
{
int i;
for (i = 0; i < 16; i++)
{
if (xd->block[i].bmi.mode == NEW4X4)
{
cpi->MVcount[0][mv_max+((xd->block[i].bmi.mv.as_mv.row - best_ref_mv.row) >> 1)]++;
cpi->MVcount[1][mv_max+((xd->block[i].bmi.mv.as_mv.col - best_ref_mv.col) >> 1)]++;
}
}
}
else if (xd->mbmi.mode == NEWMV)
{
cpi->MVcount[0][mv_max+((xd->block[0].bmi.mv.as_mv.row - best_ref_mv.row) >> 1)]++;
cpi->MVcount[1][mv_max+((xd->block[0].bmi.mv.as_mv.col - best_ref_mv.col) >> 1)]++;
}
if (!x->skip && !x->e_mbd.mbmi.force_no_skip)
{
vp8_encode_inter16x16(IF_RTCD(&cpi->rtcd), x);
// Clear mb_skip_coeff if mb_no_coeff_skip is not set
if (!cpi->common.mb_no_coeff_skip)
xd->mbmi.mb_skip_coeff = 0;
}
else
vp8_stuff_inter16x16(x);
}
if (!x->skip)
vp8_tokenize_mb(cpi, xd, t);
else
{
if (cpi->common.mb_no_coeff_skip)
{
if (xd->mbmi.mode != B_PRED && xd->mbmi.mode != SPLITMV)
xd->mbmi.dc_diff = 0;
else
xd->mbmi.dc_diff = 1;
xd->mbmi.mb_skip_coeff = 1;
cpi->skip_true_count ++;
vp8_fix_contexts(cpi, xd);
}
else
{
vp8_stuff_mb(cpi, xd, t);
xd->mbmi.mb_skip_coeff = 0;
cpi->skip_false_count ++;
}
}
return rate;
}
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