/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vpx_ports/config.h"
#include "encodemb.h"
#include "encodemv.h"
#include "vp8/common/common.h"
#include "onyx_int.h"
#include "vp8/common/extend.h"
#include "vp8/common/entropymode.h"
#include "vp8/common/quant_common.h"
#include "segmentation.h"
#include "vp8/common/setupintrarecon.h"
#include "encodeintra.h"
#include "vp8/common/reconinter.h"
#include "rdopt.h"
#include "pickinter.h"
#include "vp8/common/findnearmv.h"
#include "vp8/common/reconintra.h"
#include "vp8/common/seg_common.h"
#include <stdio.h>
#include <math.h>
#include <limits.h>
#include "vp8/common/subpixel.h"
#include "vpx_ports/vpx_timer.h"
#include "vp8/common/pred_common.h"
//#define DBG_PRNT_SEGMAP 1
#if CONFIG_RUNTIME_CPU_DETECT
#define RTCD(x) &cpi->common.rtcd.x
#define IF_RTCD(x) (x)
#else
#define RTCD(x) NULL
#define IF_RTCD(x) NULL
#endif
#ifdef ENC_DEBUG
int enc_debug=0;
int mb_row_debug, mb_col_debug;
#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);
static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x );
#ifdef MODE_STATS
unsigned int inter_y_modes[MB_MODE_COUNT] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
unsigned int inter_uv_modes[VP8_UV_MODES] = {0, 0, 0, 0};
unsigned int inter_b_modes[B_MODE_COUNT] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
unsigned int y_modes[VP8_YMODES] = {0, 0, 0, 0, 0, 0};
unsigned int i8x8_modes[VP8_I8X8_MODES]={0 };
unsigned int uv_modes[VP8_UV_MODES] = {0, 0, 0, 0};
unsigned int uv_modes_y[VP8_YMODES][VP8_UV_MODES]=
{
{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0}
};
unsigned int b_modes[B_MODE_COUNT] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
#endif
/* activity_avg must be positive, or flat regions could get a zero weight
* (infinite lambda), which confounds analysis.
* This also avoids the need for divide by zero checks in
* vp8_activity_masking().
*/
#define VP8_ACTIVITY_AVG_MIN (64)
/* This is used as a reference when computing the source variance for the
* purposes of activity masking.
* Eventually this should be replaced by custom no-reference routines,
* which will be faster.
*/
static const unsigned char VP8_VAR_OFFS[16]=
{
128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
};
#if CONFIG_T8X8
//INTRA mode transform size
//When all three criteria are off the default is 4x4
//#define INTRA_VARIANCE_ENTROPY_CRITERIA
#define INTRA_WTD_SSE_ENTROPY_CRITERIA
//#define INTRA_TEST_8X8_ONLY
//
//INTER mode transform size
//When all three criteria are off the default is 4x4
//#define INTER_VARIANCE_ENTROPY_CRITERIA
#define INTER_WTD_SSE_ENTROPY_CRITERIA
//#define INTER_TEST_8X8_ONLY
double variance_Block(short *b1, int pitch, int dimension)
{
short ip[8][8]={{0}};
short *b = b1;
int i, j = 0;
double mean = 0.0, variance = 0.0;
for (i = 0; i < dimension; i++)
{
for (j = 0; j < dimension; j++)
{
ip[i][j] = b[j];
mean += ip[i][j];
}
b += pitch;
}
mean /= (dimension*dimension);
for (i = 0; i < dimension; i++)
{
for (j = 0; j < dimension; j++)
{
variance += (ip[i][j]-mean)*(ip[i][j]-mean);
}
}
variance /= (dimension*dimension);
return variance;
}
double mean_Block(short *b, int pitch, int dimension)
{
short ip[8][8]={{0}};
int i, j = 0;
double mean = 0;
for (i = 0; i < dimension; i++)
{
for (j = 0; j < dimension; j++)
{
ip[i][j] = b[j];
mean += ip[i][j];
}
b += pitch;
}
mean /= (dimension*dimension);
return mean;
}
int SSE_Block(short *b, int pitch, int dimension)
{
int i, j, sse_block = 0;
for (i = 0; i < dimension; i++)
{
for (j = 0; j < dimension; j++)
{
sse_block += b[j]*b[j];
}
b += pitch;
}
return sse_block;
}
double Compute_Variance_Entropy(MACROBLOCK *x)
{
double variance_8[4] = {0.0, 0.0, 0.0, 0.0}, sum_var = 0.0, all_entropy = 0.0;
variance_8[0] = variance_Block(x->block[0].src_diff, 16, 8);
variance_8[1] = variance_Block(x->block[2].src_diff, 16, 8);
variance_8[2] = variance_Block(x->block[8].src_diff, 16, 8);
variance_8[3] = variance_Block(x->block[10].src_diff, 16, 8);
sum_var = variance_8[0] + variance_8[1] + variance_8[2] + variance_8[3];
if(sum_var)
{
int i;
for(i = 0; i <4; i++)
{
if(variance_8[i])
{
variance_8[i] /= sum_var;
all_entropy -= variance_8[i]*log(variance_8[i]);
}
}
}
return (all_entropy /log(2));
}
double Compute_Wtd_SSE_SubEntropy(MACROBLOCK *x)
{
double variance_8[4] = {0.0, 0.0, 0.0, 0.0};
double entropy_8[4] = {0.0, 0.0, 0.0, 0.0};
double sse_1, sse_2, sse_3, sse_4, sse_0;
int i;
for (i=0;i<3;i+=2)
{
sse_0 = SSE_Block(x->block[i].src_diff, 16, 8);
if(sse_0)
{
sse_1 = SSE_Block(x->block[i].src_diff, 16, 4)/sse_0;
sse_2 = SSE_Block(x->block[i+1].src_diff, 16, 4)/sse_0;
sse_3 = SSE_Block(x->block[i+4].src_diff, 16, 4)/sse_0;
sse_4 = SSE_Block(x->block[i+5].src_diff, 16, 4)/sse_0;
variance_8[i]= variance_Block(x->block[i].src_diff, 16, 8);
if(sse_1 && sse_2 && sse_3 && sse_4)
entropy_8[i]= (-sse_1*log(sse_1)
-sse_2*log(sse_2)
-sse_3*log(sse_3)
-sse_4*log(sse_4))/log(2);
}
}
for (i=8;i<11;i+=2)
{
if(sse_0)
{
sse_0 = SSE_Block(x->block[i].src_diff, 16, 8);
sse_1 = SSE_Block(x->block[i].src_diff, 16, 4)/sse_0;
sse_2 = SSE_Block(x->block[i+1].src_diff, 16, 4)/sse_0;
sse_3 = SSE_Block(x->block[i+4].src_diff, 16, 4)/sse_0;
sse_4 = SSE_Block(x->block[i+5].src_diff, 16, 4)/sse_0;
variance_8[i-7]= variance_Block(x->block[i].src_diff, 16, 8);
if(sse_1 && sse_2 && sse_3 && sse_4)
entropy_8[i-7]= (-sse_1*log(sse_1)
-sse_2*log(sse_2)
-sse_3*log(sse_3)
-sse_4*log(sse_4))/log(2);
}
}
if(variance_8[0]+variance_8[1]+variance_8[2]+variance_8[3])
return (entropy_8[0]*variance_8[0]+
entropy_8[1]*variance_8[1]+
entropy_8[2]*variance_8[2]+
entropy_8[3]*variance_8[3])/
(variance_8[0]+
variance_8[1]+
variance_8[2]+
variance_8[3]);
else
return 0;
}
int vp8_8x8_selection_intra(MACROBLOCK *x)
{
#ifdef INTRA_VARIANCE_ENTROPY_CRITERIA
return (Compute_Variance_Entropy(x) > 1.2);
#elif defined(INTRA_WTD_SSE_ENTROPY_CRITERIA)
return (Compute_Wtd_SSE_SubEntropy(x) > 1.2);
#elif defined(INTRA_TEST_8X8_ONLY)
return 1;
#else
return 0; //when all criteria are off use the default 4x4 only
#endif
}
int vp8_8x8_selection_inter(MACROBLOCK *x)
{
#ifdef INTER_VARIANCE_ENTROPY_CRITERIA
return (Compute_Variance_Entropy(x) > 1.5);
#elif defined(INTER_WTD_SSE_ENTROPY_CRITERIA)
return (Compute_Wtd_SSE_SubEntropy(x) > 1.5);
#elif defined(INTER_TEST_8X8_ONLY)
return 1;
#else
return 0; //when all criteria are off use the default 4x4 only
#endif
}
#endif
// Original activity measure from Tim T's code.
static unsigned int tt_activity_measure( VP8_COMP *cpi, MACROBLOCK *x )
{
unsigned int act;
unsigned int sse;
/* TODO: This could also be done over smaller areas (8x8), but that would
* require extensive changes elsewhere, as lambda is assumed to be fixed
* over an entire MB in most of the code.
* Another option is to compute four 8x8 variances, and pick a single
* lambda using a non-linear combination (e.g., the smallest, or second
* smallest, etc.).
*/
act = VARIANCE_INVOKE(&cpi->rtcd.variance, var16x16)(x->src.y_buffer,
x->src.y_stride, VP8_VAR_OFFS, 0, &sse);
act = act<<4;
/* If the region is flat, lower the activity some more. */
if (act < 8<<12)
act = act < 5<<12 ? act : 5<<12;
return act;
}
// Stub for alternative experimental activity measures.
static unsigned int alt_activity_measure( VP8_COMP *cpi,
MACROBLOCK *x, int use_dc_pred )
{
return vp8_encode_intra(cpi,x, use_dc_pred);
}
// Measure the activity of the current macroblock
// What we measure here is TBD so abstracted to this function
#define ALT_ACT_MEASURE 1
static unsigned int mb_activity_measure( VP8_COMP *cpi, MACROBLOCK *x,
int mb_row, int mb_col)
{
unsigned int mb_activity;
if ( ALT_ACT_MEASURE )
{
int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
// Or use and alternative.
mb_activity = alt_activity_measure( cpi, x, use_dc_pred );
}
else
{
// Original activity measure from Tim T's code.
mb_activity = tt_activity_measure( cpi, x );
}
if ( mb_activity < VP8_ACTIVITY_AVG_MIN )
mb_activity = VP8_ACTIVITY_AVG_MIN;
return mb_activity;
}
// Calculate an "average" mb activity value for the frame
#define ACT_MEDIAN 0
static void calc_av_activity( VP8_COMP *cpi, int64_t activity_sum )
{
#if ACT_MEDIAN
// Find median: Simple n^2 algorithm for experimentation
{
unsigned int median;
unsigned int i,j;
unsigned int * sortlist;
unsigned int tmp;
// Create a list to sort to
CHECK_MEM_ERROR(sortlist,
vpx_calloc(sizeof(unsigned int),
cpi->common.MBs));
// Copy map to sort list
vpx_memcpy( sortlist, cpi->mb_activity_map,
sizeof(unsigned int) * cpi->common.MBs );
// Ripple each value down to its correct position
for ( i = 1; i < cpi->common.MBs; i ++ )
{
for ( j = i; j > 0; j -- )
{
if ( sortlist[j] < sortlist[j-1] )
{
// Swap values
tmp = sortlist[j-1];
sortlist[j-1] = sortlist[j];
sortlist[j] = tmp;
}
else
break;
}
}
// Even number MBs so estimate median as mean of two either side.
median = ( 1 + sortlist[cpi->common.MBs >> 1] +
sortlist[(cpi->common.MBs >> 1) + 1] ) >> 1;
cpi->activity_avg = median;
vpx_free(sortlist);
}
#else
// Simple mean for now
cpi->activity_avg = (unsigned int)(activity_sum/cpi->common.MBs);
#endif
if (cpi->activity_avg < VP8_ACTIVITY_AVG_MIN)
cpi->activity_avg = VP8_ACTIVITY_AVG_MIN;
// Experimental code: return fixed value normalized for several clips
if ( ALT_ACT_MEASURE )
cpi->activity_avg = 100000;
}
#define USE_ACT_INDEX 0
#define OUTPUT_NORM_ACT_STATS 0
#if USE_ACT_INDEX
// Calculate and activity index for each mb
static void calc_activity_index( VP8_COMP *cpi, MACROBLOCK *x )
{
VP8_COMMON *const cm = & cpi->common;
int mb_row, mb_col;
int64_t act;
int64_t a;
int64_t b;
#if OUTPUT_NORM_ACT_STATS
FILE *f = fopen("norm_act.stt", "a");
fprintf(f, "\n%12d\n", cpi->activity_avg );
#endif
// Reset pointers to start of activity map
x->mb_activity_ptr = cpi->mb_activity_map;
// Calculate normalized mb activity number.
for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
{
// for each macroblock col in image
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
{
// Read activity from the map
act = *(x->mb_activity_ptr);
// Calculate a normalized activity number
a = act + 4*cpi->activity_avg;
b = 4*act + cpi->activity_avg;
if ( b >= a )
*(x->activity_ptr) = (int)((b + (a>>1))/a) - 1;
else
*(x->activity_ptr) = 1 - (int)((a + (b>>1))/b);
#if OUTPUT_NORM_ACT_STATS
fprintf(f, " %6d", *(x->mb_activity_ptr));
#endif
// Increment activity map pointers
x->mb_activity_ptr++;
}
#if OUTPUT_NORM_ACT_STATS
fprintf(f, "\n");
#endif
}
#if OUTPUT_NORM_ACT_STATS
fclose(f);
#endif
}
#endif
// Loop through all MBs. Note activity of each, average activity and
// calculate a normalized activity for each
static void build_activity_map( VP8_COMP *cpi )
{
MACROBLOCK *const x = & cpi->mb;
MACROBLOCKD *xd = &x->e_mbd;
VP8_COMMON *const cm = & cpi->common;
#if ALT_ACT_MEASURE
YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
int recon_yoffset;
int recon_y_stride = new_yv12->y_stride;
#endif
int mb_row, mb_col;
unsigned int mb_activity;
int64_t activity_sum = 0;
// for each macroblock row in image
for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
{
#if ALT_ACT_MEASURE
// reset above block coeffs
xd->up_available = (mb_row != 0);
recon_yoffset = (mb_row * recon_y_stride * 16);
#endif
// for each macroblock col in image
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
{
#if ALT_ACT_MEASURE
xd->dst.y_buffer = new_yv12->y_buffer + recon_yoffset;
xd->left_available = (mb_col != 0);
recon_yoffset += 16;
#endif
//Copy current mb to a buffer
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
// measure activity
mb_activity = mb_activity_measure( cpi, x, mb_row, mb_col );
// Keep frame sum
activity_sum += mb_activity;
// Store MB level activity details.
*x->mb_activity_ptr = mb_activity;
// Increment activity map pointer
x->mb_activity_ptr++;
// adjust to the next column of source macroblocks
x->src.y_buffer += 16;
}
// adjust to the next row of mbs
x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
#if ALT_ACT_MEASURE
//extend the recon for intra prediction
vp8_extend_mb_row(new_yv12, xd->dst.y_buffer + 16,
xd->dst.u_buffer + 8, xd->dst.v_buffer + 8);
#endif
}
// Calculate an "average" MB activity
calc_av_activity(cpi, activity_sum);
#if USE_ACT_INDEX
// Calculate an activity index number of each mb
calc_activity_index( cpi, x );
#endif
}
// Macroblock activity masking
void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x)
{
#if USE_ACT_INDEX
x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
x->errorperbit = x->rdmult * 100 /(110 * x->rddiv);
x->errorperbit += (x->errorperbit==0);
#else
int64_t a;
int64_t b;
int64_t act = *(x->mb_activity_ptr);
// Apply the masking to the RD multiplier.
a = act + (2*cpi->activity_avg);
b = (2*act) + cpi->activity_avg;
x->rdmult = (unsigned int)(((int64_t)x->rdmult*b + (a>>1))/a);
x->errorperbit = x->rdmult * 100 /(110 * x->rddiv);
x->errorperbit += (x->errorperbit==0);
#endif
// Activity based Zbin adjustment
adjust_act_zbin(cpi, x);
}
#if CONFIG_SUPERBLOCKS
static
void encode_sb_row (VP8_COMP *cpi,
VP8_COMMON *cm,
int mbrow,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp,
int *totalrate)
{
int i;
int map_index;
int mb_row, mb_col;
int recon_yoffset, recon_uvoffset;
int ref_fb_idx = cm->lst_fb_idx;
int dst_fb_idx = cm->new_fb_idx;
int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
int row_delta[4] = {-1, 0, +1, 0};
int col_delta[4] = {+1, +1, -1, +1};
int sb_cols = (cm->mb_cols + 1)>>1;
int sb_col;
ENTROPY_CONTEXT_PLANES left_context[2];
vpx_memset (left_context, 0, sizeof(left_context));
// TODO put NULL into MB rows that have no tokens?
cpi->tplist[mbrow].start = *tp;
x->src.y_buffer -= 16 * (col_delta[0] + row_delta[0]*x->src.y_stride);
x->src.u_buffer -= 8 * (col_delta[0] + row_delta[0]*x->src.uv_stride);
x->src.v_buffer -= 8 * (col_delta[0] + row_delta[0]*x->src.uv_stride);
mb_row = mbrow - row_delta[0];
mb_col = 0 - col_delta[0];
for (sb_col=0; sb_col<sb_cols; sb_col++)
{
/* Encode MBs within the SB in raster order */
for ( i=0; i<4; i++ )
{
int offset_extended = row_delta[(i+1) & 0x3] *
xd->mode_info_stride + col_delta[(i+1) & 0x3];
int offset_unextended = row_delta[(i+1) & 0x3] *
cm->mb_cols + col_delta[(i+1) & 0x3];
int dy = row_delta[i];
int dx = col_delta[i];
mb_row += dy;
mb_col += dx;
x->src.y_buffer += 16 * (dx + dy*x->src.y_stride);
x->src.u_buffer += 8 * (dx + dy*x->src.uv_stride);
x->src.v_buffer += 8 * (dx + dy*x->src.uv_stride);
if ((mb_row >= cm->mb_rows) || (mb_col >= cm->mb_cols))
{
// Skip on to the next MB
x->gf_active_ptr += offset_unextended;
x->partition_info += offset_extended;
xd->mode_info_context += offset_extended;
xd->prev_mode_info_context += offset_extended;
assert((xd->prev_mode_info_context - cpi->common.prev_mip)
==(xd->mode_info_context - cpi->common.mip));
continue;
}
// Copy in the appropriate left context
vpx_memcpy (&cm->left_context,
&left_context[(i>>1) & 0x1],
sizeof(ENTROPY_CONTEXT_PLANES));
map_index = (mb_row * cpi->common.mb_cols) + mb_col;
x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
// reset above block coeffs
xd->above_context = cm->above_context + mb_col;
// Distance of Mb to the top & bottom edges, specified in 1/8th pel
// units as they are always compared to values in 1/8th pel units
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 vector components
// to prevent them extending beyond the UMV borders
x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16)
+ (VP8BORDERINPIXELS - 16);
x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16)
+ (VP8BORDERINPIXELS - 16);
// Distance of Mb to the left & right edges, specified in
// 1/8th pel units as they are always compared to values
// that are in 1/8th pel units
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
xd->up_available = (mb_row != 0);
xd->left_available = (mb_col != 0);
recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8);
xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
// Copy current mb to a buffer
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(x->src.y_buffer,
x->src.y_stride,
x->thismb, 16);
if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp8_activity_masking(cpi, x);
// Is segmentation enabled
if (xd->segmentation_enabled)
{
// Code to set segment id in xd->mbmi.segment_id
if (cpi->segmentation_map[map_index] <= 3)
xd->mode_info_context->mbmi.segment_id =
cpi->segmentation_map[map_index];
else
xd->mode_info_context->mbmi.segment_id = 0;
vp8cx_mb_init_quantizer(cpi, x);
}
else
// Set to Segment 0 by default
xd->mode_info_context->mbmi.segment_id = 0;
x->active_ptr = cpi->active_map + map_index;
if (cm->frame_type == KEY_FRAME)
{
*totalrate += vp8cx_encode_intra_macro_block(cpi, x, tp);
//Note the encoder may have changed the segment_id
#ifdef MODE_STATS
y_modes[xd->mode_info_context->mbmi.mode] ++;
#endif
}
else
{
*totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp,
recon_yoffset, recon_uvoffset);
//Note the encoder may have changed the segment_id
#ifdef MODE_STATS
inter_y_modes[xd->mode_info_context->mbmi.mode] ++;
if (xd->mode_info_context->mbmi.mode == SPLITMV)
{
int b;
for (b = 0; b < x->partition_info->count; b++)
{
inter_b_modes[x->partition_info->bmi[b].mode] ++;
}
}
#endif
// Count of last ref frame 0,0 usage
if ((xd->mode_info_context->mbmi.mode == ZEROMV) &&
(xd->mode_info_context->mbmi.ref_frame == LAST_FRAME))
cpi->inter_zz_count ++;
// Actions required if segmentation enabled
if ( xd->segmentation_enabled )
{
// Special case code for cyclic refresh
// If cyclic update enabled then copy xd->mbmi.segment_id;
// (which may have been updated based on mode during
// vp8cx_encode_inter_macroblock()) back into the global
// segmentation map
if (cpi->cyclic_refresh_mode_enabled)
{
cpi->segmentation_map[map_index] =
xd->mode_info_context->mbmi.segment_id;
// If the block has been refreshed mark it as clean (the
// magnitude of the -ve influences how long it will be
// before we consider another refresh):
// Else if it was coded (last frame 0,0) and has not
// already been refreshed then mark it as a candidate
// for cleanup next time (marked 0)
// else mark it as dirty (1).
if (xd->mode_info_context->mbmi.segment_id)
cpi->cyclic_refresh_map[map_index] = -1;
else if ((xd->mode_info_context->mbmi.mode == ZEROMV) &&
(xd->mode_info_context->mbmi.ref_frame ==
LAST_FRAME))
{
if (cpi->cyclic_refresh_map[map_index] == 1)
cpi->cyclic_refresh_map[map_index] = 0;
}
else
cpi->cyclic_refresh_map[map_index] = 1;
}
}
}
// TODO Make sure partitioning works with this new scheme
cpi->tplist[mbrow].stop = *tp;
// Copy back updated left context
vpx_memcpy (&left_context[(i>>1) & 0x1],
&cm->left_context,
sizeof(ENTROPY_CONTEXT_PLANES));
// skip to next mb
x->gf_active_ptr += offset_unextended;
x->partition_info += offset_extended;
xd->mode_info_context += offset_extended;
xd->prev_mode_info_context += offset_extended;
assert((xd->prev_mode_info_context - cpi->common.prev_mip)
==(xd->mode_info_context - cpi->common.mip));
}
}
// Intra-pred modes requiring top-right data have been disabled,
// so we don't need this:
// extend the recon for intra prediction
/*vp8_extend_mb_row(
&cm->yv12_fb[dst_fb_idx],
xd->dst.y_buffer + 16,
xd->dst.u_buffer + 8,
xd->dst.v_buffer + 8);*/
// this is to account for the border
xd->prev_mode_info_context += 1 - (cm->mb_cols & 0x1) + xd->mode_info_stride;
xd->mode_info_context += 1 - (cm->mb_cols & 0x1) + xd->mode_info_stride;
x->partition_info += 1 - (cm->mb_cols & 0x1) + xd->mode_info_stride;
x->gf_active_ptr += cm->mb_cols - (cm->mb_cols & 0x1);
// debug output
#if DBG_PRNT_SEGMAP
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "\n" );
fclose(statsfile);
}
#endif
}
#else
static
void encode_mb_row(VP8_COMP *cpi,
VP8_COMMON *cm,
int mb_row,
MACROBLOCK *x,
MACROBLOCKD *xd,
TOKENEXTRA **tp,
int *totalrate)
{
int recon_yoffset, recon_uvoffset;
int mb_col;
int ref_fb_idx = cm->lst_fb_idx;
int dst_fb_idx = cm->new_fb_idx;
int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
int map_index = (mb_row * cpi->common.mb_cols);
// Reset the left context
vp8_zero(cm->left_context)
// reset above block coeffs
xd->above_context = cm->above_context;
xd->up_available = (mb_row != 0);
recon_yoffset = (mb_row * recon_y_stride * 16);
recon_uvoffset = (mb_row * recon_uv_stride * 8);
cpi->tplist[mb_row].start = *tp;
//printf("Main mb_row = %d\n", mb_row);
// Distance of Mb to the top & bottom edges, specified in 1/8th pel
// units as they are always compared to values that are in 1/8th pel units
xd->mb_to_top_edge = -((mb_row * 16) << 3);
xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
// Set up limit values for vertical motion vector components
// to prevent them extending beyond the UMV borders
x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16)
+ (VP8BORDERINPIXELS - 16);
// Set the mb activity pointer to the start of the row.
x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
// for each macroblock col in image
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
{
#ifdef ENC_DEBUG
enc_debug = (cpi->common.current_video_frame ==1 && mb_row==4 && mb_col==0);
mb_col_debug=mb_col;
mb_row_debug=mb_row;
#endif
// Distance of Mb to the left & right edges, specified in
// 1/8th pel units as they are always compared to values
// that are in 1/8th pel units
xd->mb_to_left_edge = -((mb_col * 16) << 3);
xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
// Set up limit values for horizontal motion vector components
// to prevent them extending beyond the UMV borders
x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16)
+ (VP8BORDERINPIXELS - 16);
xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
xd->left_available = (mb_col != 0);
x->rddiv = cpi->RDDIV;
x->rdmult = cpi->RDMULT;
//Copy current mb to a buffer
RECON_INVOKE(&xd->rtcd->recon, copy16x16)(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
vp8_activity_masking(cpi, x);
// Is segmentation enabled
if (xd->segmentation_enabled)
{
// Code to set segment id in xd->mbmi.segment_id
if (cpi->segmentation_map[map_index+mb_col] <= 3)
xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index+mb_col];
else
xd->mode_info_context->mbmi.segment_id = 0;
vp8cx_mb_init_quantizer(cpi, x);
}
else
// Set to Segment 0 by default
xd->mode_info_context->mbmi.segment_id = 0;
x->active_ptr = cpi->active_map + map_index + mb_col;
#if CONFIG_T8X8
/* force 4x4 transform for mode selection */
xd->mode_info_context->mbmi.txfm_size = TX_4X4;
#endif
if (cm->frame_type == KEY_FRAME)
{
*totalrate += vp8cx_encode_intra_macro_block(cpi, x, tp);
//Note the encoder may have changed the segment_id
#ifdef MODE_STATS
y_modes[xd->mode_info_context->mbmi.mode] ++;
#endif
}
else
{
*totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset);
//Note the encoder may have changed the segment_id
#ifdef MODE_STATS
inter_y_modes[xd->mode_info_context->mbmi.mode] ++;
if (xd->mode_info_context->mbmi.mode == SPLITMV)
{
int b;
for (b = 0; b < x->partition_info->count; b++)
{
inter_b_modes[x->partition_info->bmi[b].mode] ++;
}
}
#endif
// Count of last ref frame 0,0 usage
if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME))
cpi->inter_zz_count ++;
// Actions required if segmentation enabled
if ( xd->segmentation_enabled )
{
// Special case code for cyclic refresh
// If cyclic update enabled then copy xd->mbmi.segment_id;
// (which may have been updated based on mode during
// vp8cx_encode_inter_macroblock()) back into the global
// segmentation map
if (cpi->cyclic_refresh_mode_enabled)
{
cpi->segmentation_map[map_index+mb_col] =
xd->mode_info_context->mbmi.segment_id;
// If the block has been refreshed mark it as clean (the
// magnitude of the -ve influences how long it will be
// before we consider another refresh):
// Else if it was coded (last frame 0,0) and has not
// already been refreshed then mark it as a candidate
// for cleanup next time (marked 0)
// else mark it as dirty (1).
if (xd->mode_info_context->mbmi.segment_id)
cpi->cyclic_refresh_map[map_index+mb_col] = -1;
else if ((xd->mode_info_context->mbmi.mode == ZEROMV) &&
(xd->mode_info_context->mbmi.ref_frame ==
LAST_FRAME))
{
if (cpi->cyclic_refresh_map[map_index+mb_col] == 1)
cpi->cyclic_refresh_map[map_index+mb_col] = 0;
}
else
cpi->cyclic_refresh_map[map_index+mb_col] = 1;
}
}
}
cpi->tplist[mb_row].stop = *tp;
// Increment pointer into gf usage flags structure.
x->gf_active_ptr++;
// Increment the activity mask pointers.
x->mb_activity_ptr++;
// adjust to the next column of macroblocks
x->src.y_buffer += 16;
x->src.u_buffer += 8;
x->src.v_buffer += 8;
recon_yoffset += 16;
recon_uvoffset += 8;
// skip to next mb
xd->mode_info_context++;
xd->prev_mode_info_context++;
assert((xd->prev_mode_info_context - cpi->common.prev_mip)
==(xd->mode_info_context - cpi->common.mip));
x->partition_info++;
xd->above_context++;
}
//extend the recon for intra prediction
vp8_extend_mb_row(
&cm->yv12_fb[dst_fb_idx],
xd->dst.y_buffer + 16,
xd->dst.u_buffer + 8,
xd->dst.v_buffer + 8);
// this is to account for the border
xd->prev_mode_info_context++;
xd->mode_info_context++;
x->partition_info++;
// debug output
#if DBG_PRNT_SEGMAP
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "\n" );
fclose(statsfile);
}
#endif
}
#endif /* CONFIG_SUPERBLOCKS */
void init_encode_frame_mb_context(VP8_COMP *cpi)
{
MACROBLOCK *const x = & cpi->mb;
VP8_COMMON *const cm = & cpi->common;
MACROBLOCKD *const xd = & x->e_mbd;
// GF active flags data structure
x->gf_active_ptr = (signed char *)cpi->gf_active_flags;
// Activity map pointer
x->mb_activity_ptr = cpi->mb_activity_map;
x->vector_range = 32;
x->act_zbin_adj = 0;
x->partition_info = x->pi;
xd->mode_info_context = cm->mi;
xd->mode_info_stride = cm->mode_info_stride;
xd->prev_mode_info_context = cm->prev_mi;
xd->frame_type = cm->frame_type;
xd->frames_since_golden = cm->frames_since_golden;
xd->frames_till_alt_ref_frame = cm->frames_till_alt_ref_frame;
// reset intra mode contexts
if (cm->frame_type == KEY_FRAME)
vp8_init_mbmode_probs(cm);
// Copy data over into macro block data sturctures.
x->src = * cpi->Source;
xd->pre = cm->yv12_fb[cm->lst_fb_idx];
xd->dst = cm->yv12_fb[cm->new_fb_idx];
// set up frame for intra coded blocks
vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]);
vp8_build_block_offsets(x);
vp8_setup_block_dptrs(&x->e_mbd);
vp8_setup_block_ptrs(x);
xd->mode_info_context->mbmi.mode = DC_PRED;
xd->mode_info_context->mbmi.uv_mode = DC_PRED;
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;
vpx_memset(cm->above_context, 0,
sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols);
//#if CONFIG_COMPRED
// TODO... this will all need changing for new reference frame coding model
// in addition... ref_frame_cost should not be in the MACROBLOCKD structure as
// it is only referenced in the encoder.
//#endif
xd->ref_frame_cost[INTRA_FRAME] = vp8_cost_zero(cm->prob_intra_coded);
// Special case treatment when GF and ARF are not sensible options for reference
if (cpi->ref_frame_flags == VP8_LAST_FLAG)
{
xd->ref_frame_cost[LAST_FRAME] = vp8_cost_one(cm->prob_intra_coded)
+ vp8_cost_zero(255);
xd->ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cm->prob_intra_coded)
+ vp8_cost_one(255)
+ vp8_cost_zero(128);
xd->ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cm->prob_intra_coded)
+ vp8_cost_one(255)
+ vp8_cost_one(128);
}
else
{
xd->ref_frame_cost[LAST_FRAME] = vp8_cost_one(cm->prob_intra_coded)
+ vp8_cost_zero(cm->prob_last_coded);
xd->ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cm->prob_intra_coded)
+ vp8_cost_one(cm->prob_last_coded)
+ vp8_cost_zero(cm->prob_gf_coded);
xd->ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cm->prob_intra_coded)
+ vp8_cost_one(cm->prob_last_coded)
+ vp8_cost_one(cm->prob_gf_coded);
}
xd->fullpixel_mask = 0xffffffff;
if(cm->full_pixel)
xd->fullpixel_mask = 0xfffffff8;
}
static void encode_frame_internal(VP8_COMP *cpi)
{
int mb_row;
MACROBLOCK *const x = & cpi->mb;
VP8_COMMON *const cm = & cpi->common;
MACROBLOCKD *const xd = & x->e_mbd;
TOKENEXTRA *tp = cpi->tok;
int totalrate;
// Compute a modified set of reference frame probabilities to use when
// prediction fails. These are based on the current genreal estimates for
// this frame which may be updated with each itteration of the recode loop.
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;
if (cpi->compressor_speed == 2)
{
if (cpi->oxcf.cpu_used < 0)
cpi->Speed = -(cpi->oxcf.cpu_used);
else
vp8_auto_select_speed(cpi);
}
// Functions setup for all frame types so we can use MC in AltRef
if (cm->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);
xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE(
&cpi->common.rtcd.subpix, sixtap_avg8x8);
xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE(
&cpi->common.rtcd.subpix, sixtap_avg16x16);
}
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);
xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE(
&cpi->common.rtcd.subpix, bilinear_avg8x8);
xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE(
&cpi->common.rtcd.subpix, bilinear_avg16x16);
}
// Reset frame count of inter 0,0 motion vector usage.
cpi->inter_zz_count = 0;
cpi->prediction_error = 0;
cpi->intra_error = 0;
cpi->skip_true_count = 0;
cpi->skip_false_count = 0;
#if 0
// Experimental code
cpi->frame_distortion = 0;
cpi->last_mb_distortion = 0;
#endif
xd->mode_info_context = cm->mi;
xd->prev_mode_info_context = cm->prev_mi;
vp8_zero(cpi->MVcount);
vp8_zero(cpi->coef_counts);
vp8cx_frame_init_quantizer(cpi);
vp8_initialize_rd_consts(cpi, cm->base_qindex + cm->y1dc_delta_q);
vp8cx_initialize_me_consts(cpi, cm->base_qindex);
if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
{
// Initialize encode frame context.
init_encode_frame_mb_context(cpi);
// Build a frame level activity map
build_activity_map(cpi);
}
// re-initencode frame context.
init_encode_frame_mb_context(cpi);
cpi->rd_single_diff = cpi->rd_dual_diff = cpi->rd_hybrid_diff = 0;
vpx_memset(cpi->single_pred_count, 0, sizeof(cpi->single_pred_count));
vpx_memset(cpi->dual_pred_count, 0, sizeof(cpi->dual_pred_count));
{
struct vpx_usec_timer emr_timer;
vpx_usec_timer_start(&emr_timer);
{
#if CONFIG_SUPERBLOCKS
// for each superblock row in the image
for (mb_row = 0; mb_row < cm->mb_rows; mb_row+=2)
{
int offset = cm->mb_cols - 1 + (cm->mb_cols & 0x1);
encode_sb_row(cpi, cm, mb_row, x, xd, &tp, &totalrate);
// adjust to the next row of SBs
x->src.y_buffer += 16 * x->src.y_stride - 16 * offset;
x->src.u_buffer += 8 * x->src.uv_stride - 8 * offset;
x->src.v_buffer += 8 * x->src.uv_stride - 8 * offset;
}
#else
// for each macroblock row in the image
for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
{
encode_mb_row(cpi, cm, mb_row, x, xd, &tp, &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;
}
#endif // CONFIG_SUPERBLOCKS
cpi->tok_count = tp - cpi->tok;
}
vpx_usec_timer_mark(&emr_timer);
cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer);
}
// 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, (const MV_CONTEXT *) cm->fc.mvc, flag);
}
#endif
#if 0
// Keep record of the total distortion this time around for future use
cpi->last_frame_distortion = cpi->frame_distortion;
#endif
}
void vp8_encode_frame(VP8_COMP *cpi)
{
if (cpi->sf.RD)
{
int frame_type, pred_type;
int redo = 0;
/*
* This code does a single RD pass over the whole frame assuming
* either dual, 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. If the difference is above a certain
* threshold, it will actually re-encode the current frame using
* that different coding mode.
*/
if (cpi->common.frame_type == KEY_FRAME)
frame_type = 0;
else if (cpi->is_src_frame_alt_ref && cpi->common.refresh_golden_frame)
frame_type = 3;
else if (cpi->common.refresh_golden_frame || cpi->common.refresh_alt_ref_frame)
frame_type = 1;
else
frame_type = 2;
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])
pred_type = DUAL_PREDICTION_ONLY;
else if (cpi->rd_prediction_type_threshes[frame_type][0] >
cpi->rd_prediction_type_threshes[frame_type][1] &&
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;
cpi->common.dual_pred_mode = pred_type;
encode_frame_internal(cpi);
cpi->rd_single_diff /= cpi->common.MBs;
cpi->rd_prediction_type_threshes[frame_type][0] += cpi->rd_single_diff;
cpi->rd_prediction_type_threshes[frame_type][0] >>= 1;
cpi->rd_dual_diff /= cpi->common.MBs;
cpi->rd_prediction_type_threshes[frame_type][1] += cpi->rd_dual_diff;
cpi->rd_prediction_type_threshes[frame_type][1] >>= 1;
cpi->rd_hybrid_diff /= cpi->common.MBs;
cpi->rd_prediction_type_threshes[frame_type][2] += cpi->rd_hybrid_diff;
cpi->rd_prediction_type_threshes[frame_type][2] >>= 1;
/* FIXME make "100" (the threshold at which to re-encode the
* current frame) a commandline option. */
if (cpi->common.dual_pred_mode == SINGLE_PREDICTION_ONLY &&
(cpi->rd_dual_diff >= 100 || cpi->rd_hybrid_diff >= 100))
{
redo = 1;
cpi->common.dual_pred_mode = cpi->rd_dual_diff > cpi->rd_hybrid_diff ?
DUAL_PREDICTION_ONLY : HYBRID_PREDICTION;
}
else if (cpi->common.dual_pred_mode == DUAL_PREDICTION_ONLY &&
(cpi->rd_single_diff >= 100 || cpi->rd_hybrid_diff >= 100))
{
redo = 1;
cpi->common.dual_pred_mode = cpi->rd_single_diff > cpi->rd_hybrid_diff ?
SINGLE_PREDICTION_ONLY : HYBRID_PREDICTION;
}
else if (cpi->common.dual_pred_mode == HYBRID_PREDICTION)
{
int single_count_zero = 0;
int dual_count_zero = 0;
int i;
for ( i = 0; i < DUAL_PRED_CONTEXTS; i++ )
{
single_count_zero += cpi->single_pred_count[i];
dual_count_zero += cpi->dual_pred_count[i];
}
if (dual_count_zero == 0)
{
cpi->common.dual_pred_mode = SINGLE_PREDICTION_ONLY;
}
else if (single_count_zero == 0)
{
cpi->common.dual_pred_mode = DUAL_PREDICTION_ONLY;
}
else if (cpi->rd_single_diff >= 100 || cpi->rd_dual_diff >= 100)
{
redo = 1;
cpi->common.dual_pred_mode = cpi->rd_single_diff > cpi->rd_dual_diff ?
SINGLE_PREDICTION_ONLY : DUAL_PREDICTION_ONLY;
}
}
if (redo)
{
encode_frame_internal(cpi);
if (cpi->common.dual_pred_mode == HYBRID_PREDICTION)
{
int single_count_zero = 0;
int dual_count_zero = 0;
int i;
for ( i = 0; i < DUAL_PRED_CONTEXTS; i++ )
{
single_count_zero += cpi->single_pred_count[i];
dual_count_zero += cpi->dual_pred_count[i];
}
if (dual_count_zero == 0)
{
cpi->common.dual_pred_mode = SINGLE_PREDICTION_ONLY;
}
else if (single_count_zero == 0)
{
cpi->common.dual_pred_mode = DUAL_PREDICTION_ONLY;
}
}
}
}
else
{
encode_frame_internal(cpi);
}
}
void vp8_setup_block_ptrs(MACROBLOCK *x)
{
int r, c;
int i;
for (r = 0; r < 4; r++)
{
for (c = 0; c < 4; c++)
{
x->block[r*4+c].src_diff = x->src_diff + r * 4 * 16 + c * 4;
}
}
for (r = 0; r < 2; r++)
{
for (c = 0; c < 2; c++)
{
x->block[16 + r*2+c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4;
}
}
for (r = 0; r < 2; r++)
{
for (c = 0; c < 2; c++)
{
x->block[20 + r*2+c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4;
}
}
x->block[24].src_diff = x->src_diff + 384;
for (i = 0; i < 25; i++)
{
x->block[i].coeff = x->coeff + i * 16;
}
}
void vp8_build_block_offsets(MACROBLOCK *x)
{
int block = 0;
int br, bc;
vp8_build_block_doffsets(&x->e_mbd);
// y blocks
x->thismb_ptr = &x->thismb[0];
for (br = 0; br < 4; br++)
{
for (bc = 0; bc < 4; bc++)
{
BLOCK *this_block = &x->block[block];
//this_block->base_src = &x->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->thismb_ptr;
this_block->src_stride = 16;
this_block->src = 4 * br * 16 + 4 * bc;
++block;
}
}
// u blocks
for (br = 0; br < 2; br++)
{
for (bc = 0; bc < 2; bc++)
{
BLOCK *this_block = &x->block[block];
this_block->base_src = &x->src.u_buffer;
this_block->src_stride = x->src.uv_stride;
this_block->src = 4 * br * this_block->src_stride + 4 * bc;
++block;
}
}
// v blocks
for (br = 0; br < 2; br++)
{
for (bc = 0; bc < 2; bc++)
{
BLOCK *this_block = &x->block[block];
this_block->base_src = &x->src.v_buffer;
this_block->src_stride = x->src.uv_stride;
this_block->src = 4 * br * this_block->src_stride + 4 * bc;
++block;
}
}
}
static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x)
{
const MACROBLOCKD *xd = & x->e_mbd;
const MB_PREDICTION_MODE m = xd->mode_info_context->mbmi.mode;
const MB_PREDICTION_MODE uvm = xd->mode_info_context->mbmi.uv_mode;
#ifdef MODE_STATS
const int is_key = cpi->common.frame_type == KEY_FRAME;
++ (is_key ? uv_modes : inter_uv_modes)[uvm];
++ uv_modes_y[m][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.as_mode];
}
while (++b < 16);
}
if(m==I8X8_PRED)
{
i8x8_modes[xd->block[0].bmi.as_mode]++;
i8x8_modes[xd->block[2].bmi.as_mode]++;
i8x8_modes[xd->block[8].bmi.as_mode]++;
i8x8_modes[xd->block[10].bmi.as_mode]++;
}
#endif
++cpi->ymode_count[m];
++cpi->uv_mode_count[uvm];
}
// Experimental stub function to create a per MB zbin adjustment based on
// some previously calculated measure of MB activity.
static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x )
{
#if USE_ACT_INDEX
x->act_zbin_adj = *(x->mb_activity_ptr);
#else
int64_t a;
int64_t b;
int64_t act = *(x->mb_activity_ptr);
// Apply the masking to the RD multiplier.
a = act + 4*cpi->activity_avg;
b = 4*act + cpi->activity_avg;
if ( act > cpi->activity_avg )
x->act_zbin_adj = (int)(((int64_t)b + (a>>1))/a) - 1;
else
x->act_zbin_adj = 1 - (int)(((int64_t)a + (b>>1))/b);
#endif
}
int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t)
{
int rate;
if (cpi->sf.RD && cpi->compressor_speed != 2)
vp8_rd_pick_intra_mode(cpi, x, &rate);
else
vp8_pick_intra_mode(cpi, x, &rate);
if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
{
adjust_act_zbin( cpi, x );
vp8_update_zbin_extra(cpi, x);
}
#if CONFIG_T8X8
/* test code: set transform size based on mode selection */
if(cpi->common.txfm_mode == ALLOW_8X8
&& x->e_mbd.mode_info_context->mbmi.mode != I8X8_PRED
&& x->e_mbd.mode_info_context->mbmi.mode != B_PRED)
{
x->e_mbd.mode_info_context->mbmi.txfm_size = TX_8X8;
cpi->t8x8_count++;
}
else
{
x->e_mbd.mode_info_context->mbmi.txfm_size = TX_4X4;
cpi->t4x4_count ++;
}
#endif
if(x->e_mbd.mode_info_context->mbmi.mode == I8X8_PRED)
{
vp8_encode_intra8x8mby(IF_RTCD(&cpi->rtcd), x);
vp8_encode_intra8x8mbuv(IF_RTCD(&cpi->rtcd), x);
}
else if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED)
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
else
vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
if(x->e_mbd.mode_info_context->mbmi.mode != I8X8_PRED)
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(MACROBLOCKD *x);
int vp8cx_encode_inter_macroblock
(
VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
int recon_yoffset, int recon_uvoffset
)
{
VP8_COMMON *cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
int intra_error = 0;
int rate;
int distortion;
unsigned char *segment_id = &xd->mode_info_context->mbmi.segment_id;
int seg_ref_active;
unsigned char ref_pred_flag;
x->skip = 0;
if (xd->segmentation_enabled)
x->encode_breakout = cpi->segment_encode_breakout[*segment_id];
else
x->encode_breakout = cpi->oxcf.encode_breakout;
if (cpi->sf.RD)
{
int zbin_mode_boost_enabled = cpi->zbin_mode_boost_enabled;
int single, dual, hybrid;
/* Are we using the fast quantizer for the mode selection? */
if(cpi->sf.use_fastquant_for_pick)
{
cpi->mb.quantize_b = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
fastquantb);
cpi->mb.quantize_b_pair = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
fastquantb_pair);
/* the fast quantizer does not use zbin_extra, so
* do not recalculate */
cpi->zbin_mode_boost_enabled = 0;
}
vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate,
&distortion, &intra_error, &single, &dual, &hybrid);
cpi->rd_single_diff += single;
cpi->rd_dual_diff += dual;
cpi->rd_hybrid_diff += hybrid;
if (x->e_mbd.mode_info_context->mbmi.ref_frame &&
x->e_mbd.mode_info_context->mbmi.mode != SPLITMV)
{
unsigned char pred_context;
pred_context = get_pred_context( cm, xd, PRED_DUAL );
if (xd->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME)
cpi->single_pred_count[pred_context]++;
else
cpi->dual_pred_count[pred_context]++;
}
#if CONFIG_T8X8
/* test code: set transform size based on mode selection */
if( cpi->common.txfm_mode == ALLOW_8X8
&& x->e_mbd.mode_info_context->mbmi.mode != I8X8_PRED
&& x->e_mbd.mode_info_context->mbmi.mode != B_PRED
&& x->e_mbd.mode_info_context->mbmi.mode != SPLITMV)
{
x->e_mbd.mode_info_context->mbmi.txfm_size = TX_8X8;
cpi->t8x8_count ++;
}
else
{
x->e_mbd.mode_info_context->mbmi.txfm_size = TX_4X4;
cpi->t4x4_count++;
}
#endif
/* switch back to the regular quantizer for the encode */
if (cpi->sf.improved_quant)
{
cpi->mb.quantize_b = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
quantb);
cpi->mb.quantize_b_pair = QUANTIZE_INVOKE(&cpi->rtcd.quantize,
quantb_pair);
}
/* restore cpi->zbin_mode_boost_enabled */
cpi->zbin_mode_boost_enabled = zbin_mode_boost_enabled;
}
else
vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate,
&distortion, &intra_error);
cpi->prediction_error += distortion;
cpi->intra_error += intra_error;
if(cpi->oxcf.tuning == VP8_TUNE_SSIM)
{
// Adjust the zbin based on this MB rate.
adjust_act_zbin( cpi, x );
}
#if 0
// Experimental RD code
cpi->frame_distortion += distortion;
cpi->last_mb_distortion = distortion;
#endif
// MB level adjutment to quantizer setup
if (xd->segmentation_enabled)
{
// If cyclic update enabled
if (cpi->cyclic_refresh_mode_enabled)
{
// Clear segment_id back to 0 if not coded (last frame 0,0)
if ( (*segment_id == 1) &&
( (xd->mode_info_context->mbmi.ref_frame != LAST_FRAME) ||
(xd->mode_info_context->mbmi.mode != ZEROMV) ) )
{
*segment_id = 0;
/* segment_id changed, so update */
vp8cx_mb_init_quantizer(cpi, x);
}
}
else
{
//segfeature_test_function(cpi, xd);
#if DBG_PRNT_SEGMAP
// Debug output
{
FILE *statsfile;
statsfile = fopen("segmap2.stt", "a");
fprintf(statsfile, "%2d%2d%2d ",
*segment_id,
xd->mode_info_context->mbmi.ref_frame,
xd->mode_info_context->mbmi.mode );
fclose(statsfile);
}
#endif
}
}
{
// Experimental code. Special case for gf and arf zeromv modes.
// Increase zbin size to supress 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 = 0;
else
cpi->zbin_mode_boost = MV_ZBIN_BOOST;
}
}
/* The fast quantizer doesn't use zbin_extra, only do so with
* the regular quantizer. */
if (cpi->sf.improved_quant)
vp8_update_zbin_extra(cpi, x);
}
seg_ref_active = segfeature_active( xd, *segment_id, SEG_LVL_REF_FRAME );
// SET VARIOUS PREDICTION FLAGS
// Did the chosen reference frame match its predicted value.
ref_pred_flag = ( (xd->mode_info_context->mbmi.ref_frame ==
get_pred_ref( cm, xd )) );
set_pred_flag( xd, PRED_REF, ref_pred_flag );
// 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.
if ( !seg_ref_active ||
( ( check_segref( xd, *segment_id, INTRA_FRAME ) +
check_segref( xd, *segment_id, LAST_FRAME ) +
check_segref( xd, *segment_id, GOLDEN_FRAME ) +
check_segref( xd, *segment_id, ALTREF_FRAME ) ) > 1 ) )
{
// TODO this may not be a good idea as it makes sample size small and means
// the predictor functions cannot use data about most likely value only most
// likely unpredicted value.
//#if CONFIG_COMPRED
// // Only update count for incorrectly predicted cases
// if ( !ref_pred_flag )
//#endif
{
cpi->count_mb_ref_frame_usage
[xd->mode_info_context->mbmi.ref_frame]++;
}
}
if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
{
if (xd->mode_info_context->mbmi.mode == B_PRED)
{
vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
}
else if(xd->mode_info_context->mbmi.mode == I8X8_PRED)
{
vp8_encode_intra8x8mby(IF_RTCD(&cpi->rtcd), x);
vp8_encode_intra8x8mbuv(IF_RTCD(&cpi->rtcd), x);
}
else
{
vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
}
sum_intra_stats(cpi, x);
}
else
{
int ref_fb_idx;
if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)
ref_fb_idx = cpi->common.lst_fb_idx;
else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME)
ref_fb_idx = cpi->common.gld_fb_idx;
else
ref_fb_idx = cpi->common.alt_fb_idx;
xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset;
xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset;
xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset;
if (xd->mode_info_context->mbmi.second_ref_frame) {
int second_ref_fb_idx;
if (xd->mode_info_context->mbmi.second_ref_frame == LAST_FRAME)
second_ref_fb_idx = cpi->common.lst_fb_idx;
else if (xd->mode_info_context->mbmi.second_ref_frame == GOLDEN_FRAME)
second_ref_fb_idx = cpi->common.gld_fb_idx;
else
second_ref_fb_idx = cpi->common.alt_fb_idx;
xd->second_pre.y_buffer = cpi->common.yv12_fb[second_ref_fb_idx].y_buffer +
recon_yoffset;
xd->second_pre.u_buffer = cpi->common.yv12_fb[second_ref_fb_idx].u_buffer +
recon_uvoffset;
xd->second_pre.v_buffer = cpi->common.yv12_fb[second_ref_fb_idx].v_buffer +
recon_uvoffset;
}
if (!x->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->mode_info_context->mbmi.mb_skip_coeff = 0;
}
else
{
vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer,
xd->dst.u_buffer, xd->dst.v_buffer,
xd->dst.y_stride, xd->dst.uv_stride);
}
}
if (!x->skip)
{
#ifdef ENC_DEBUG
if (enc_debug)
{
int i;
printf("Segment=%d [%d, %d]: %d %d:\n", x->e_mbd.mode_info_context->mbmi.segment_id, mb_col_debug, mb_row_debug, xd->mb_to_left_edge, xd->mb_to_top_edge);
for (i =0; i<400; i++) {
printf("%3d ", xd->qcoeff[i]);
if (i%16 == 15) printf("\n");
}
printf("\n");
printf("eobs = ");
for (i=0;i<25;i++)
printf("%d:%d ", i, xd->block[i].eob);
printf("\n");
fflush(stdout);
}
#endif
vp8_tokenize_mb(cpi, xd, t);
#ifdef ENC_DEBUG
if (enc_debug) {
printf("Tokenized\n");
fflush(stdout);
}
#endif
}
else
{
if (cpi->common.mb_no_coeff_skip)
{
xd->mode_info_context->mbmi.mb_skip_coeff = 1;
cpi->skip_true_count ++;
vp8_fix_contexts(xd);
}
else
{
vp8_stuff_mb(cpi, xd, t);
xd->mode_info_context->mbmi.mb_skip_coeff = 0;
cpi->skip_false_count ++;
}
}
return rate;
}