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vpx/vp8/encoder/rdopt.c
Yaowu Xu 454c7abc1a moved scaling from dequantization to inverse transform for T8x8 
Previously, the scaling related to extended quantize range happens in
dequantization stage, which implies the coefficients form forward
transform are in different scale(4x) from dequantization coefficients
This worked fine when there was not distortion computation done based
on 8x8 transform, but it completely wracked the distortion estimation
based on transform coefficients and dequantized transform coefficients
introduced in commit f64725a00 for macroblocks using 8x8 transform.
This commit fixed the issue by moving the scaling into the stage of
inverse 8x8 transform.

TODO: Test&Verify the transform/quantization pipeline accuracy.

Change-Id: Iff77b36a965c2a6b247e59b9c59df93eba5d60e2
2012-02-16 07:03:55 -08:00

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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 <stdio.h>
#include <math.h>
#include <limits.h>
#include <assert.h>
#include "vp8/common/pragmas.h"
#include "tokenize.h"
#include "treewriter.h"
#include "onyx_int.h"
#include "modecosts.h"
#include "encodeintra.h"
#include "vp8/common/entropymode.h"
#include "vp8/common/reconinter.h"
#include "vp8/common/reconintra.h"
#include "vp8/common/reconintra4x4.h"
#include "vp8/common/findnearmv.h"
#include "vp8/common/quant_common.h"
#include "encodemb.h"
#include "quantize.h"
#include "vp8/common/idct.h"
#include "vp8/common/g_common.h"
#include "variance.h"
#include "mcomp.h"
#include "rdopt.h"
#include "ratectrl.h"
#include "vpx_mem/vpx_mem.h"
#include "dct.h"
#include "vp8/common/systemdependent.h"
#include "vp8/common/seg_common.h"
#include "vp8/common/pred_common.h"
#if CONFIG_RUNTIME_CPU_DETECT
#define IF_RTCD(x) (x)
#else
#define IF_RTCD(x) NULL
#endif
extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x);
extern void vp8_update_zbin_extra(VP8_COMP *cpi, MACROBLOCK *x);
#define MAXF(a,b) (((a) > (b)) ? (a) : (b))
static const int auto_speed_thresh[17] =
{
1000,
200,
150,
130,
150,
125,
120,
115,
115,
115,
115,
115,
115,
115,
115,
115,
105
};
const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES] =
{
ZEROMV,
DC_PRED,
NEARESTMV,
NEARMV,
ZEROMV,
NEARESTMV,
ZEROMV,
NEARESTMV,
NEARMV,
NEARMV,
V_PRED,
H_PRED,
TM_PRED,
NEWMV,
NEWMV,
NEWMV,
SPLITMV,
SPLITMV,
SPLITMV,
B_PRED,
I8X8_PRED,
/* dual prediction modes */
ZEROMV,
NEARESTMV,
NEARMV,
ZEROMV,
NEARESTMV,
NEARMV,
ZEROMV,
NEARESTMV,
NEARMV,
NEWMV,
NEWMV,
NEWMV,
};
const MV_REFERENCE_FRAME vp8_ref_frame_order[MAX_MODES] =
{
LAST_FRAME,
INTRA_FRAME,
LAST_FRAME,
LAST_FRAME,
GOLDEN_FRAME,
GOLDEN_FRAME,
ALTREF_FRAME,
ALTREF_FRAME,
GOLDEN_FRAME,
ALTREF_FRAME,
INTRA_FRAME,
INTRA_FRAME,
INTRA_FRAME,
LAST_FRAME,
GOLDEN_FRAME,
ALTREF_FRAME,
LAST_FRAME,
GOLDEN_FRAME,
ALTREF_FRAME,
INTRA_FRAME,
INTRA_FRAME,
/* dual prediction modes */
LAST_FRAME,
LAST_FRAME,
LAST_FRAME,
ALTREF_FRAME,
ALTREF_FRAME,
ALTREF_FRAME,
GOLDEN_FRAME,
GOLDEN_FRAME,
GOLDEN_FRAME,
LAST_FRAME,
ALTREF_FRAME,
GOLDEN_FRAME,
};
const MV_REFERENCE_FRAME vp8_second_ref_frame_order[MAX_MODES] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0,
/* dual prediction modes */
GOLDEN_FRAME,
GOLDEN_FRAME,
GOLDEN_FRAME,
LAST_FRAME,
LAST_FRAME,
LAST_FRAME,
ALTREF_FRAME,
ALTREF_FRAME,
ALTREF_FRAME,
GOLDEN_FRAME,
LAST_FRAME,
ALTREF_FRAME,
};
static void fill_token_costs(
unsigned int c [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS],
const vp8_prob p [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [ENTROPY_NODES]
)
{
int i, j, k;
for (i = 0; i < BLOCK_TYPES; i++)
for (j = 0; j < COEF_BANDS; j++)
for (k = 0; k < PREV_COEF_CONTEXTS; k++)
vp8_cost_tokens((int *)(c [i][j][k]), p [i][j][k], vp8_coef_tree);
}
static int rd_iifactor [ 32 ] = { 4, 4, 3, 2, 1, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
// 3* dc_qlookup[Q]*dc_qlookup[Q];
/* values are now correlated to quantizer */
static int sad_per_bit16lut[QINDEX_RANGE];
static int sad_per_bit4lut[QINDEX_RANGE];
void vp8_init_me_luts()
{
int i;
// Initialize the sad lut tables using a formulaic calculation for now
// This is to make it easier to resolve the impact of experimental changes
// to the quantizer tables.
for ( i = 0; i < QINDEX_RANGE; i++ )
{
sad_per_bit16lut[i] =
(int)((0.0418*vp8_convert_qindex_to_q(i)) + 2.4107);
sad_per_bit4lut[i] = (int)((0.063*vp8_convert_qindex_to_q(i)) + 2.742);
}
}
int compute_rd_mult( int qindex )
{
int q;
q = vp8_dc_quant(qindex,0);
return (3 * q * q) >> 4;
}
void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex)
{
cpi->mb.sadperbit16 = sad_per_bit16lut[QIndex];
cpi->mb.sadperbit4 = sad_per_bit4lut[QIndex];
}
void vp8_initialize_rd_consts(VP8_COMP *cpi, int QIndex)
{
int q;
int i;
vp8_clear_system_state(); //__asm emms;
// Further tests required to see if optimum is different
// for key frames, golden frames and arf frames.
// if (cpi->common.refresh_golden_frame ||
// cpi->common.refresh_alt_ref_frame)
QIndex=(QIndex<0)? 0 : ((QIndex>MAXQ)?MAXQ : QIndex);
cpi->RDMULT = compute_rd_mult(QIndex);
// Extend rate multiplier along side quantizer zbin increases
if (cpi->zbin_over_quant > 0)
{
double oq_factor;
// Experimental code using the same basic equation as used for Q above
// The units of cpi->zbin_over_quant are 1/128 of Q bin size
oq_factor = 1.0 + ((double)0.0015625 * cpi->zbin_over_quant);
cpi->RDMULT = (int)((double)cpi->RDMULT * oq_factor * oq_factor);
}
if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME))
{
if (cpi->twopass.next_iiratio > 31)
cpi->RDMULT += (cpi->RDMULT * rd_iifactor[31]) >> 4;
else
cpi->RDMULT +=
(cpi->RDMULT * rd_iifactor[cpi->twopass.next_iiratio]) >> 4;
}
if (cpi->RDMULT < 7)
cpi->RDMULT = 7;
cpi->mb.errorperbit = (cpi->RDMULT / 110);
cpi->mb.errorperbit += (cpi->mb.errorperbit==0);
vp8_set_speed_features(cpi);
q = (int)pow(vp8_dc_quant(QIndex,0)>>2, 1.25);
q = q << 2;
cpi->RDMULT = cpi->RDMULT << 4;
if (q < 8)
q = 8;
if (cpi->RDMULT > 1000)
{
cpi->RDDIV = 1;
cpi->RDMULT /= 100;
for (i = 0; i < MAX_MODES; i++)
{
if (cpi->sf.thresh_mult[i] < INT_MAX)
{
cpi->rd_threshes[i] = cpi->sf.thresh_mult[i] * q / 100;
}
else
{
cpi->rd_threshes[i] = INT_MAX;
}
cpi->rd_baseline_thresh[i] = cpi->rd_threshes[i];
}
}
else
{
cpi->RDDIV = 100;
for (i = 0; i < MAX_MODES; i++)
{
if (cpi->sf.thresh_mult[i] < (INT_MAX / q))
{
cpi->rd_threshes[i] = cpi->sf.thresh_mult[i] * q;
}
else
{
cpi->rd_threshes[i] = INT_MAX;
}
cpi->rd_baseline_thresh[i] = cpi->rd_threshes[i];
}
}
fill_token_costs(
cpi->mb.token_costs,
(const vp8_prob( *)[8][3][11]) cpi->common.fc.coef_probs
);
#if CONFIG_T8X8
fill_token_costs(
cpi->mb.token_costs_8x8,
(const vp8_prob( *)[8][3][11]) cpi->common.fc.coef_probs_8x8
);
#endif
#if CONFIG_QIMODE
//rough estimate for costing
cpi->common.kf_ymode_probs_index = cpi->common.base_qindex>>4;
#endif
vp8_init_mode_costs(cpi);
}
void vp8_auto_select_speed(VP8_COMP *cpi)
{
int milliseconds_for_compress = (int)(1000000 / cpi->oxcf.frame_rate);
milliseconds_for_compress = milliseconds_for_compress * (16 - cpi->oxcf.cpu_used) / 16;
#if 0
if (0)
{
FILE *f;
f = fopen("speed.stt", "a");
fprintf(f, " %8ld %10ld %10ld %10ld\n",
cpi->common.current_video_frame, cpi->Speed, milliseconds_for_compress, cpi->avg_pick_mode_time);
fclose(f);
}
#endif
/*
// this is done during parameter valid check
if( cpi->oxcf.cpu_used > 16)
cpi->oxcf.cpu_used = 16;
if( cpi->oxcf.cpu_used < -16)
cpi->oxcf.cpu_used = -16;
*/
if (cpi->avg_pick_mode_time < milliseconds_for_compress && (cpi->avg_encode_time - cpi->avg_pick_mode_time) < milliseconds_for_compress)
{
if (cpi->avg_pick_mode_time == 0)
{
cpi->Speed = 4;
}
else
{
if (milliseconds_for_compress * 100 < cpi->avg_encode_time * 95)
{
cpi->Speed += 2;
cpi->avg_pick_mode_time = 0;
cpi->avg_encode_time = 0;
if (cpi->Speed > 16)
{
cpi->Speed = 16;
}
}
if (milliseconds_for_compress * 100 > cpi->avg_encode_time * auto_speed_thresh[cpi->Speed])
{
cpi->Speed -= 1;
cpi->avg_pick_mode_time = 0;
cpi->avg_encode_time = 0;
// In real-time mode, cpi->speed is in [4, 16].
if (cpi->Speed < 4) //if ( cpi->Speed < 0 )
{
cpi->Speed = 4; //cpi->Speed = 0;
}
}
}
}
else
{
cpi->Speed += 4;
if (cpi->Speed > 16)
cpi->Speed = 16;
cpi->avg_pick_mode_time = 0;
cpi->avg_encode_time = 0;
}
}
int vp8_block_error_c(short *coeff, short *dqcoeff)
{
int i;
int error = 0;
for (i = 0; i < 16; i++)
{
int this_diff = coeff[i] - dqcoeff[i];
error += this_diff * this_diff;
}
return error;
}
int vp8_mbblock_error_c(MACROBLOCK *mb, int dc)
{
BLOCK *be;
BLOCKD *bd;
int i, j;
int berror, error = 0;
for (i = 0; i < 16; i++)
{
be = &mb->block[i];
bd = &mb->e_mbd.block[i];
berror = 0;
for (j = dc; j < 16; j++)
{
int this_diff = be->coeff[j] - bd->dqcoeff[j];
berror += this_diff * this_diff;
}
error += berror;
}
return error;
}
int vp8_mbuverror_c(MACROBLOCK *mb)
{
BLOCK *be;
BLOCKD *bd;
int i;
int error = 0;
for (i = 16; i < 24; i++)
{
be = &mb->block[i];
bd = &mb->e_mbd.block[i];
error += vp8_block_error_c(be->coeff, bd->dqcoeff);
}
return error;
}
int VP8_UVSSE(MACROBLOCK *x, const vp8_variance_rtcd_vtable_t *rtcd)
{
unsigned char *uptr, *vptr;
unsigned char *upred_ptr = (*(x->block[16].base_src) + x->block[16].src);
unsigned char *vpred_ptr = (*(x->block[20].base_src) + x->block[20].src);
int uv_stride = x->block[16].src_stride;
unsigned int sse1 = 0;
unsigned int sse2 = 0;
int mv_row = x->e_mbd.mode_info_context->mbmi.mv.as_mv.row;
int mv_col = x->e_mbd.mode_info_context->mbmi.mv.as_mv.col;
int offset;
int pre_stride = x->e_mbd.block[16].pre_stride;
if (mv_row < 0)
mv_row -= 1;
else
mv_row += 1;
if (mv_col < 0)
mv_col -= 1;
else
mv_col += 1;
mv_row /= 2;
mv_col /= 2;
offset = (mv_row >> 3) * pre_stride + (mv_col >> 3);
uptr = x->e_mbd.pre.u_buffer + offset;
vptr = x->e_mbd.pre.v_buffer + offset;
if ((mv_row | mv_col) & 7)
{
VARIANCE_INVOKE(rtcd, subpixvar8x8)(uptr, pre_stride,
mv_col & 7, mv_row & 7, upred_ptr, uv_stride, &sse2);
VARIANCE_INVOKE(rtcd, subpixvar8x8)(vptr, pre_stride,
mv_col & 7, mv_row & 7, vpred_ptr, uv_stride, &sse1);
sse2 += sse1;
}
else
{
VARIANCE_INVOKE(rtcd, var8x8)(uptr, pre_stride,
upred_ptr, uv_stride, &sse2);
VARIANCE_INVOKE(rtcd, var8x8)(vptr, pre_stride,
vpred_ptr, uv_stride, &sse1);
sse2 += sse1;
}
return sse2;
}
static int cost_coeffs(MACROBLOCK *mb, BLOCKD *b, int type, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l)
{
int c = !type; /* start at coef 0, unless Y with Y2 */
int eob = b->eob;
int pt ; /* surrounding block/prev coef predictor */
int cost = 0;
short *qcoeff_ptr = b->qcoeff;
VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
# define QC( I) ( qcoeff_ptr [vp8_default_zig_zag1d[I]] )
for (; c < eob; c++)
{
int v = QC(c);
int t = vp8_dct_value_tokens_ptr[v].Token;
cost += mb->token_costs [type] [vp8_coef_bands[c]] [pt] [t];
cost += vp8_dct_value_cost_ptr[v];
pt = vp8_prev_token_class[t];
}
# undef QC
if (c < 16)
cost += mb->token_costs [type] [vp8_coef_bands[c]] [pt] [DCT_EOB_TOKEN];
pt = (c != !type); // is eob first coefficient;
*a = *l = pt;
return cost;
}
static int vp8_rdcost_mby(MACROBLOCK *mb)
{
int cost = 0;
int b;
MACROBLOCKD *x = &mb->e_mbd;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
for (b = 0; b < 16; b++)
cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_Y_NO_DC,
ta + vp8_block2above[b], tl + vp8_block2left[b]);
cost += cost_coeffs(mb, x->block + 24, PLANE_TYPE_Y2,
ta + vp8_block2above[24], tl + vp8_block2left[24]);
return cost;
}
static void macro_block_yrd( MACROBLOCK *mb,
int *Rate,
int *Distortion,
const vp8_encodemb_rtcd_vtable_t *rtcd)
{
int b;
MACROBLOCKD *const x = &mb->e_mbd;
BLOCK *const mb_y2 = mb->block + 24;
BLOCKD *const x_y2 = x->block + 24;
short *Y2DCPtr = mb_y2->src_diff;
BLOCK *beptr;
int d;
ENCODEMB_INVOKE(rtcd, submby)( mb->src_diff, *(mb->block[0].base_src),
mb->e_mbd.predictor, mb->block[0].src_stride );
// Fdct and building the 2nd order block
for (beptr = mb->block; beptr < mb->block + 16; beptr += 2)
{
mb->vp8_short_fdct8x4(beptr->src_diff, beptr->coeff, 32);
*Y2DCPtr++ = beptr->coeff[0];
*Y2DCPtr++ = beptr->coeff[16];
}
// 2nd order fdct
mb->short_walsh4x4(mb_y2->src_diff, mb_y2->coeff, 8);
// Quantization
for (b = 0; b < 16; b++)
{
mb->quantize_b(&mb->block[b], &mb->e_mbd.block[b]);
}
// DC predication and Quantization of 2nd Order block
mb->quantize_b(mb_y2, x_y2);
// Distortion
d = ENCODEMB_INVOKE(rtcd, mberr)(mb, 1) << 2;
d += ENCODEMB_INVOKE(rtcd, berr)(mb_y2->coeff, x_y2->dqcoeff)<<2;
*Distortion = (d >> 4);
// rate
*Rate = vp8_rdcost_mby(mb);
}
#if CONFIG_T8X8
static int cost_coeffs_2x2(MACROBLOCK *mb,
BLOCKD *b, int type,
ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l)
{
int c = !type; /* start at coef 0, unless Y with Y2 */
int eob = b->eob;
int pt ; /* surrounding block/prev coef predictor */
int cost = 0;
short *qcoeff_ptr = b->qcoeff;
VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
assert(eob<=4);
# define QC2X2( I) ( qcoeff_ptr [vp8_default_zig_zag1d[I]] )
for (; c < eob; c++)
{
int v = QC2X2(c);
int t = vp8_dct_value_tokens_ptr[v].Token;
cost += mb->token_costs_8x8[type] [vp8_coef_bands[c]] [pt] [t];
cost += vp8_dct_value_cost_ptr[v];
pt = vp8_prev_token_class[t];
}
# undef QC2X2
if (c < 4)
cost += mb->token_costs_8x8 [type][vp8_coef_bands[c]]
[pt] [DCT_EOB_TOKEN];
pt = (c != !type); // is eob first coefficient;
*a = *l = pt;
return cost;
}
static int cost_coeffs_8x8(MACROBLOCK *mb,
BLOCKD *b, int type,
ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l,
ENTROPY_CONTEXT *a1, ENTROPY_CONTEXT *l1)
{
int c = !type; /* start at coef 0, unless Y with Y2 */
int eob = b->eob;
int pt ; /* surrounding block/prev coef predictor */
int cost = 0;
short *qcoeff_ptr = b->qcoeff;
VP8_COMBINEENTROPYCONTEXTS_8x8(pt, *a, *l, *a1, *l1);
# define QC8X8( I) ( qcoeff_ptr [vp8_default_zig_zag1d_8x8[I]] )
for (; c < eob; c++)
{
int v = QC8X8(c);
int t = vp8_dct_value_tokens_ptr[v].Token;
cost += mb->token_costs_8x8[type] [vp8_coef_bands_8x8[c]] [pt] [t];
cost += vp8_dct_value_cost_ptr[v];
pt = vp8_prev_token_class[t];
}
# undef QC8X8
if (c < 64)
cost += mb->token_costs_8x8 [type][vp8_coef_bands_8x8[c]]
[pt] [DCT_EOB_TOKEN];
pt = (c != !type); // is eob first coefficient;
*a = *l = pt;
return cost;
}
static int vp8_rdcost_mby_8x8(MACROBLOCK *mb)
{
int cost = 0;
int b;
MACROBLOCKD *x = &mb->e_mbd;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
for (b = 0; b < 16; b+=4)
cost += cost_coeffs_8x8(mb, x->block + b, PLANE_TYPE_Y_NO_DC,
ta + vp8_block2above[b], tl + vp8_block2left[b],
ta + vp8_block2above[b+4], tl + vp8_block2left[b+4]);
cost += cost_coeffs_2x2(mb, x->block + 24, PLANE_TYPE_Y2,
ta + vp8_block2above[24], tl + vp8_block2left[24]);
return cost;
}
static void macro_block_yrd_8x8( MACROBLOCK *mb,
int *Rate,
int *Distortion,
const VP8_ENCODER_RTCD *rtcd)
{
int b;
MACROBLOCKD *const x = &mb->e_mbd;
BLOCK *const mb_y2 = mb->block + 24;
BLOCKD *const x_y2 = x->block + 24;
short *Y2DCPtr = mb_y2->src_diff;
BLOCK *beptr;
int d;
ENCODEMB_INVOKE(&rtcd->encodemb, submby)
( mb->src_diff, *(mb->block[0].base_src),
mb->e_mbd.predictor, mb->block[0].src_stride );
vp8_transform_mby_8x8(mb);
vp8_quantize_mby_8x8(mb);
/* remove 1st order dc to properly combine 1st/2nd order distortion */
mb->coeff[0] = 0;
mb->coeff[64] = 0;
mb->coeff[128] = 0;
mb->coeff[192] = 0;
mb->e_mbd.dqcoeff[0] = 0;
mb->e_mbd.dqcoeff[64] = 0;
mb->e_mbd.dqcoeff[128] = 0;
mb->e_mbd.dqcoeff[192] = 0;
d = ENCODEMB_INVOKE(&rtcd->encodemb, mberr)(mb, 0) << 2;
d += ENCODEMB_INVOKE(&rtcd->encodemb, berr)(mb_y2->coeff, x_y2->dqcoeff)<<2;
*Distortion = (d >> 4);
// rate
*Rate = vp8_rdcost_mby_8x8(mb);
}
#endif
static void copy_predictor(unsigned char *dst, const unsigned char *predictor)
{
const unsigned int *p = (const unsigned int *)predictor;
unsigned int *d = (unsigned int *)dst;
d[0] = p[0];
d[4] = p[4];
d[8] = p[8];
d[12] = p[12];
}
static void copy_predictor_8x8(unsigned char *dst, const unsigned char *predictor)
{
const unsigned int *p = (const unsigned int *)predictor;
unsigned int *d = (unsigned int *)dst;
d[0] = p[0];
d[1] = p[1];
d[4] = p[4];
d[5] = p[5];
d[8] = p[8];
d[9] = p[9];
d[12] = p[12];
d[13] = p[13];
d[16] = p[16];
d[17] = p[17];
d[20] = p[20];
d[21] = p[21];
d[24] = p[24];
d[25] = p[25];
d[28] = p[28];
d[29] = p[29];
}
static int rd_pick_intra4x4block(
VP8_COMP *cpi,
MACROBLOCK *x,
BLOCK *be,
BLOCKD *b,
B_PREDICTION_MODE *best_mode,
unsigned int *bmode_costs,
ENTROPY_CONTEXT *a,
ENTROPY_CONTEXT *l,
int *bestrate,
int *bestratey,
int *bestdistortion)
{
B_PREDICTION_MODE mode;
int best_rd = INT_MAX;
int rate = 0;
int distortion;
ENTROPY_CONTEXT ta = *a, tempa = *a;
ENTROPY_CONTEXT tl = *l, templ = *l;
/*
* The predictor buffer is a 2d buffer with a stride of 16. Create
* a temp buffer that meets the stride requirements, but we are only
* interested in the left 4x4 block
* */
DECLARE_ALIGNED_ARRAY(16, unsigned char, best_predictor, 16*4);
DECLARE_ALIGNED_ARRAY(16, short, best_dqcoeff, 16);
for (mode = B_DC_PRED; mode <= B_HU_PRED; mode++)
{
int this_rd;
int ratey;
#if CONFIG_SUPERBLOCKS
// Ignore modes thact need the above-right data
if (mode==B_LD_PRED || mode==B_VL_PRED)
continue;
#endif
rate = bmode_costs[mode];
RECON_INVOKE(&cpi->rtcd.common->recon, intra4x4_predict)
(b, mode, b->predictor);
ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), subb)(be, b, 16);
x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
x->quantize_b(be, b);
tempa = ta;
templ = tl;
ratey = cost_coeffs(x, b, PLANE_TYPE_Y_WITH_DC, &tempa, &templ);
rate += ratey;
distortion = ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), berr)(be->coeff, b->dqcoeff) >> 2;
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_rd)
{
*bestrate = rate;
*bestratey = ratey;
*bestdistortion = distortion;
best_rd = this_rd;
*best_mode = mode;
*a = tempa;
*l = templ;
copy_predictor(best_predictor, b->predictor);
vpx_memcpy(best_dqcoeff, b->dqcoeff, 32);
}
}
b->bmi.as_mode = (B_PREDICTION_MODE)(*best_mode);
IDCT_INVOKE(IF_RTCD(&cpi->rtcd.common->idct), idct16)(best_dqcoeff, b->diff, 32);
RECON_INVOKE(IF_RTCD(&cpi->rtcd.common->recon), recon)(best_predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
return best_rd;
}
static int rd_pick_intra4x4mby_modes(VP8_COMP *cpi, MACROBLOCK *mb, int *Rate,
int *rate_y, int *Distortion, int best_rd)
{
MACROBLOCKD *const xd = &mb->e_mbd;
int i;
int cost = mb->mbmode_cost [xd->frame_type] [B_PRED];
int distortion = 0;
int tot_rate_y = 0;
int64_t total_rd = 0;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
unsigned int *bmode_costs;
vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
#if !CONFIG_SUPERBLOCKS
vp8_intra_prediction_down_copy(xd);
#endif
bmode_costs = mb->inter_bmode_costs;
for (i = 0; i < 16; i++)
{
MODE_INFO *const mic = xd->mode_info_context;
const int mis = xd->mode_info_stride;
B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(ry), UNINITIALIZED_IS_SAFE(d);
if (mb->e_mbd.frame_type == KEY_FRAME)
{
const B_PREDICTION_MODE A = above_block_mode(mic, i, mis);
const B_PREDICTION_MODE L = left_block_mode(mic, i);
bmode_costs = mb->bmode_costs[A][L];
}
total_rd += rd_pick_intra4x4block(
cpi, mb, mb->block + i, xd->block + i, &best_mode, bmode_costs,
ta + vp8_block2above[i],
tl + vp8_block2left[i], &r, &ry, &d);
cost += r;
distortion += d;
tot_rate_y += ry;
mic->bmi[i].as_mode = best_mode;
if(total_rd >= (int64_t)best_rd)
break;
}
if(total_rd >= (int64_t)best_rd)
return INT_MAX;
*Rate = cost;
*rate_y += tot_rate_y;
*Distortion = distortion;
return RDCOST(mb->rdmult, mb->rddiv, cost, distortion);
}
static int rd_pick_intra16x16mby_mode(VP8_COMP *cpi,
MACROBLOCK *x,
int *Rate,
int *rate_y,
int *Distortion)
{
MB_PREDICTION_MODE mode;
MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(mode_selected);
int rate, ratey;
int distortion;
int best_rd = INT_MAX;
int this_rd;
//Y Search for 16x16 intra prediction mode
for (mode = DC_PRED; mode <= TM_PRED; mode++)
{
x->e_mbd.mode_info_context->mbmi.mode = mode;
RECON_INVOKE(&cpi->common.rtcd.recon, build_intra_predictors_mby)
(&x->e_mbd);
macro_block_yrd(x, &ratey, &distortion, IF_RTCD(&cpi->rtcd.encodemb));
rate = ratey + x->mbmode_cost[x->e_mbd.frame_type]
[x->e_mbd.mode_info_context->mbmi.mode];
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_rd)
{
mode_selected = mode;
best_rd = this_rd;
*Rate = rate;
*rate_y = ratey;
*Distortion = distortion;
}
}
x->e_mbd.mode_info_context->mbmi.mode = mode_selected;
return best_rd;
}
static int rd_pick_intra8x8block(
VP8_COMP *cpi,
MACROBLOCK *x,
int ib,
B_PREDICTION_MODE *best_mode,
unsigned int *mode_costs,
ENTROPY_CONTEXT *a,
ENTROPY_CONTEXT *l,
int *bestrate,
int *bestratey,
int *bestdistortion)
{
MB_PREDICTION_MODE mode;
MACROBLOCKD *xd = &x->e_mbd;
int best_rd = INT_MAX;
int rate = 0;
int distortion;
BLOCK *be=x->block + ib;
BLOCKD *b=x->e_mbd.block + ib;
ENTROPY_CONTEXT ta0, ta1, besta0, besta1;
ENTROPY_CONTEXT tl0, tl1, bestl0, bestl1;
/*
* The predictor buffer is a 2d buffer with a stride of 16. Create
* a temp buffer that meets the stride requirements, but we are only
* interested in the left 8x8 block
* */
DECLARE_ALIGNED_ARRAY(16, unsigned char, best_predictor, 16*8);
DECLARE_ALIGNED_ARRAY(16, short, best_dqcoeff, 16*4);
for (mode = DC_PRED; mode <= TM_PRED; mode++)
{
int this_rd;
int rate_t;
rate = mode_costs[mode];
RECON_INVOKE(&cpi->rtcd.common->recon, intra8x8_predict)
(b, mode, b->predictor);
vp8_subtract_4b_c(be, b, 16);
x->vp8_short_fdct8x4(be->src_diff, be->coeff, 32);
x->vp8_short_fdct8x4(be->src_diff + 64, be->coeff + 64, 32);
x->quantize_b_pair(x->block+ib, x->block+ib+1,
xd->block+ib, xd->block+ib+1);
x->quantize_b_pair(x->block+ib+4, x->block+ib+5,
xd->block+ib+4, xd->block+ib+5);
distortion = ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), berr)
((x->block+ib)->coeff,(xd->block+ib)->dqcoeff)>>2;
distortion += ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), berr)
((x->block+ib+1)->coeff,(xd->block+ib+1)->dqcoeff)>>2;
distortion += ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), berr)
((x->block+ib+4)->coeff,(xd->block+ib+4)->dqcoeff)>>2;
distortion += ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), berr)
((x->block+ib+5)->coeff,(xd->block+ib+5)->dqcoeff)>>2;
ta0 = *(a + vp8_block2above[ib]);
ta1 = *(a + vp8_block2above[ib+1]);
tl0 = *(l + vp8_block2above[ib]);
tl1 = *(l + vp8_block2above[ib+4]);
rate_t = cost_coeffs(x, xd->block+ib, PLANE_TYPE_Y_WITH_DC,
&ta0, &tl0);
rate_t += cost_coeffs(x, xd->block+ib+1, PLANE_TYPE_Y_WITH_DC,
&ta1, &tl0);
rate_t += cost_coeffs(x, xd->block+ib+4, PLANE_TYPE_Y_WITH_DC,
&ta0, &tl1);
rate_t += cost_coeffs(x, xd->block+ib+5, PLANE_TYPE_Y_WITH_DC,
&ta1, &tl1);
rate += rate_t;
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_rd)
{
*bestrate = rate;
*bestratey = rate_t;
*bestdistortion = distortion;
besta0 = ta0;
besta1 = ta1;
bestl0 = tl0;
bestl1 = tl1;
best_rd = this_rd;
*best_mode = mode;
copy_predictor_8x8(best_predictor, b->predictor);
vpx_memcpy(best_dqcoeff, b->dqcoeff, 64);
vpx_memcpy(best_dqcoeff+32, b->dqcoeff+64, 64);
}
}
b->bmi.as_mode = (*best_mode);
vp8_encode_intra8x8 (IF_RTCD(&cpi->rtcd), x, ib);
*(a + vp8_block2above[ib]) = besta0;
*(a + vp8_block2above[ib+1]) = besta1;
*(l + vp8_block2above[ib]) = bestl0;
*(l + vp8_block2above[ib+4]) = bestl1;
return best_rd;
}
const int vp8_i8x8_block[4]={0, 2, 8, 10};
int rd_pick_intra8x8mby_modes(VP8_COMP *cpi,
MACROBLOCK *mb,
int *Rate,
int *rate_y,
int *Distortion,
int best_rd)
{
MACROBLOCKD *const xd = &mb->e_mbd;
int i,ib;
int cost = mb->mbmode_cost [xd->frame_type] [I8X8_PRED];
int distortion = 0;
int tot_rate_y = 0;
long long total_rd = 0;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
unsigned int *i8x8mode_costs;
vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
i8x8mode_costs = mb->i8x8_mode_costs;
for (i = 0; i < 4; i++)
{
MODE_INFO *const mic = xd->mode_info_context;
B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(ry), UNINITIALIZED_IS_SAFE(d);
ib = vp8_i8x8_block[i];
total_rd += rd_pick_intra8x8block(
cpi, mb, ib, &best_mode, i8x8mode_costs,
ta, tl, &r, &ry, &d);
cost += r;
distortion += d;
tot_rate_y += ry;
mic->bmi[ib].as_mode = best_mode;
}
*Rate = cost;
*rate_y += tot_rate_y;
*Distortion = distortion;
return RDCOST(mb->rdmult, mb->rddiv, cost, distortion);
}
static int rd_cost_mbuv(MACROBLOCK *mb)
{
int b;
int cost = 0;
MACROBLOCKD *x = &mb->e_mbd;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
for (b = 16; b < 24; b++)
cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_UV,
ta + vp8_block2above[b], tl + vp8_block2left[b]);
return cost;
}
static int rd_inter16x16_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
int *distortion, int fullpixel)
{
#if CONFIG_T8X8
int tx_type = x->e_mbd.mode_info_context->mbmi.txfm_size;
#endif
ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), submbuv)(x->src_diff,
x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
#if CONFIG_T8X8
if( tx_type == TX_8X8 )
vp8_transform_mbuv_8x8(x);
else
#endif
vp8_transform_mbuv(x);
vp8_quantize_mbuv(x);
*rate = rd_cost_mbuv(x);
*distortion = ENCODEMB_INVOKE(&cpi->rtcd.encodemb, mbuverr)(x) / 4;
return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
}
static int rd_inter4x4_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
int *distortion, int fullpixel)
{
vp8_build_inter4x4_predictors_mbuv(&x->e_mbd);
ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), submbuv)(x->src_diff,
x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
vp8_transform_mbuv(x);
vp8_quantize_mbuv(x);
*rate = rd_cost_mbuv(x);
*distortion = ENCODEMB_INVOKE(&cpi->rtcd.encodemb, mbuverr)(x) / 4;
return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
}
static void rd_pick_intra_mbuv_mode(VP8_COMP *cpi, MACROBLOCK *x, int *rate, int *rate_tokenonly, int *distortion)
{
MB_PREDICTION_MODE mode;
MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(mode_selected);
int best_rd = INT_MAX;
int UNINITIALIZED_IS_SAFE(d), UNINITIALIZED_IS_SAFE(r);
int rate_to;
for (mode = DC_PRED; mode <= TM_PRED; mode++)
{
int rate;
int distortion;
int this_rd;
x->e_mbd.mode_info_context->mbmi.uv_mode = mode;
RECON_INVOKE(&cpi->rtcd.common->recon, build_intra_predictors_mbuv)
(&x->e_mbd);
ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), submbuv)(x->src_diff,
x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor,
x->src.uv_stride);
vp8_transform_mbuv(x);
vp8_quantize_mbuv(x);
rate_to = rd_cost_mbuv(x);
rate = rate_to + x->intra_uv_mode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.uv_mode];
distortion = ENCODEMB_INVOKE(&cpi->rtcd.encodemb, mbuverr)(x) / 4;
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_rd)
{
best_rd = this_rd;
d = distortion;
r = rate;
*rate_tokenonly = rate_to;
mode_selected = mode;
}
}
*rate = r;
*distortion = d;
x->e_mbd.mode_info_context->mbmi.uv_mode = mode_selected;
}
int vp8_cost_mv_ref(VP8_COMMON *pc,
MB_PREDICTION_MODE m,
const int near_mv_ref_ct[4])
{
vp8_prob p [VP8_MVREFS-1];
assert(NEARESTMV <= m && m <= SPLITMV);
vp8_mv_ref_probs(pc, p, near_mv_ref_ct);
return vp8_cost_token(vp8_mv_ref_tree, p,
vp8_mv_ref_encoding_array - NEARESTMV + m);
}
void vp8_set_mbmode_and_mvs(MACROBLOCK *x, MB_PREDICTION_MODE mb, int_mv *mv)
{
x->e_mbd.mode_info_context->mbmi.mode = mb;
x->e_mbd.mode_info_context->mbmi.mv.as_int = mv->as_int;
}
static int labels2mode(
MACROBLOCK *x,
int const *labelings, int which_label,
B_PREDICTION_MODE this_mode,
int_mv *this_mv, int_mv *best_ref_mv,
int *mvcost[2]
)
{
MACROBLOCKD *const xd = & x->e_mbd;
MODE_INFO *const mic = xd->mode_info_context;
const int mis = xd->mode_info_stride;
int cost = 0;
int thismvcost = 0;
/* We have to be careful retrieving previously-encoded motion vectors.
Ones from this macroblock have to be pulled from the BLOCKD array
as they have not yet made it to the bmi array in our MB_MODE_INFO. */
int i = 0;
do
{
BLOCKD *const d = xd->block + i;
const int row = i >> 2, col = i & 3;
B_PREDICTION_MODE m;
if (labelings[i] != which_label)
continue;
if (col && labelings[i] == labelings[i-1])
m = LEFT4X4;
else if (row && labelings[i] == labelings[i-4])
m = ABOVE4X4;
else
{
// the only time we should do costing for new motion vector or mode
// is when we are on a new label (jbb May 08, 2007)
switch (m = this_mode)
{
case NEW4X4 :
thismvcost = vp8_mv_bit_cost(this_mv, best_ref_mv, mvcost, 102);
break;
case LEFT4X4:
this_mv->as_int = col ? d[-1].bmi.mv.as_int : left_block_mv(mic, i);
break;
case ABOVE4X4:
this_mv->as_int = row ? d[-4].bmi.mv.as_int : above_block_mv(mic, i, mis);
break;
case ZERO4X4:
this_mv->as_int = 0;
break;
default:
break;
}
if (m == ABOVE4X4) // replace above with left if same
{
int_mv left_mv;
left_mv.as_int = col ? d[-1].bmi.mv.as_int :
left_block_mv(mic, i);
if (left_mv.as_int == this_mv->as_int)
m = LEFT4X4;
}
cost = x->inter_bmode_costs[ m];
}
d->bmi.mv.as_int = this_mv->as_int;
x->partition_info->bmi[i].mode = m;
x->partition_info->bmi[i].mv.as_int = this_mv->as_int;
}
while (++i < 16);
cost += thismvcost ;
return cost;
}
static int rdcost_mbsegment_y(MACROBLOCK *mb, const int *labels,
int which_label, ENTROPY_CONTEXT *ta,
ENTROPY_CONTEXT *tl)
{
int cost = 0;
int b;
MACROBLOCKD *x = &mb->e_mbd;
for (b = 0; b < 16; b++)
if (labels[ b] == which_label)
cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_Y_WITH_DC,
ta + vp8_block2above[b],
tl + vp8_block2left[b]);
return cost;
}
static unsigned int vp8_encode_inter_mb_segment(MACROBLOCK *x, int const *labels, int which_label, const vp8_encodemb_rtcd_vtable_t *rtcd)
{
int i;
unsigned int distortion = 0;
for (i = 0; i < 16; i++)
{
if (labels[i] == which_label)
{
BLOCKD *bd = &x->e_mbd.block[i];
BLOCK *be = &x->block[i];
vp8_build_inter_predictors_b(bd, 16, x->e_mbd.subpixel_predict);
ENCODEMB_INVOKE(rtcd, subb)(be, bd, 16);
x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
// set to 0 no way to account for 2nd order DC so discount
//be->coeff[0] = 0;
x->quantize_b(be, bd);
distortion += ENCODEMB_INVOKE(rtcd, berr)(be->coeff, bd->dqcoeff);
}
}
return distortion;
}
static const unsigned int segmentation_to_sseshift[4] = {3, 3, 2, 0};
typedef struct
{
int_mv *ref_mv;
int_mv mvp;
int segment_rd;
int segment_num;
int r;
int d;
int segment_yrate;
B_PREDICTION_MODE modes[16];
int_mv mvs[16];
unsigned char eobs[16];
int mvthresh;
int *mdcounts;
int_mv sv_mvp[4]; // save 4 mvp from 8x8
int sv_istep[2]; // save 2 initial step_param for 16x8/8x16
} BEST_SEG_INFO;
static void rd_check_segment(VP8_COMP *cpi, MACROBLOCK *x,
BEST_SEG_INFO *bsi, unsigned int segmentation)
{
int i;
int const *labels;
int br = 0;
int bd = 0;
B_PREDICTION_MODE this_mode;
int label_count;
int this_segment_rd = 0;
int label_mv_thresh;
int rate = 0;
int sbr = 0;
int sbd = 0;
int segmentyrate = 0;
vp8_variance_fn_ptr_t *v_fn_ptr;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
ENTROPY_CONTEXT_PLANES t_above_b, t_left_b;
ENTROPY_CONTEXT *ta_b;
ENTROPY_CONTEXT *tl_b;
vpx_memcpy(&t_above, x->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, x->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
ta_b = (ENTROPY_CONTEXT *)&t_above_b;
tl_b = (ENTROPY_CONTEXT *)&t_left_b;
br = 0;
bd = 0;
v_fn_ptr = &cpi->fn_ptr[segmentation];
labels = vp8_mbsplits[segmentation];
label_count = vp8_mbsplit_count[segmentation];
// 64 makes this threshold really big effectively
// making it so that we very rarely check mvs on
// segments. setting this to 1 would make mv thresh
// roughly equal to what it is for macroblocks
label_mv_thresh = 1 * bsi->mvthresh / label_count ;
// Segmentation method overheads
rate = vp8_cost_token(vp8_mbsplit_tree, vp8_mbsplit_probs, vp8_mbsplit_encodings + segmentation);
rate += vp8_cost_mv_ref(&cpi->common, SPLITMV, bsi->mdcounts);
this_segment_rd += RDCOST(x->rdmult, x->rddiv, rate, 0);
br += rate;
for (i = 0; i < label_count; i++)
{
int_mv mode_mv[B_MODE_COUNT];
int best_label_rd = INT_MAX;
B_PREDICTION_MODE mode_selected = ZERO4X4;
int bestlabelyrate = 0;
// search for the best motion vector on this segment
for (this_mode = LEFT4X4; this_mode <= NEW4X4 ; this_mode ++)
{
int this_rd;
int distortion;
int labelyrate;
ENTROPY_CONTEXT_PLANES t_above_s, t_left_s;
ENTROPY_CONTEXT *ta_s;
ENTROPY_CONTEXT *tl_s;
vpx_memcpy(&t_above_s, &t_above, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left_s, &t_left, sizeof(ENTROPY_CONTEXT_PLANES));
ta_s = (ENTROPY_CONTEXT *)&t_above_s;
tl_s = (ENTROPY_CONTEXT *)&t_left_s;
if (this_mode == NEW4X4)
{
int sseshift;
int num00;
int step_param = 0;
int further_steps;
int n;
int thissme;
int bestsme = INT_MAX;
int_mv temp_mv;
BLOCK *c;
BLOCKD *e;
// Is the best so far sufficiently good that we cant justify doing and new motion search.
if (best_label_rd < label_mv_thresh)
break;
if(cpi->compressor_speed)
{
if (segmentation == BLOCK_8X16 || segmentation == BLOCK_16X8)
{
bsi->mvp.as_int = bsi->sv_mvp[i].as_int;
if (i==1 && segmentation == BLOCK_16X8)
bsi->mvp.as_int = bsi->sv_mvp[2].as_int;
step_param = bsi->sv_istep[i];
}
// use previous block's result as next block's MV predictor.
if (segmentation == BLOCK_4X4 && i>0)
{
bsi->mvp.as_int = x->e_mbd.block[i-1].bmi.mv.as_int;
if (i==4 || i==8 || i==12)
bsi->mvp.as_int = x->e_mbd.block[i-4].bmi.mv.as_int;
step_param = 2;
}
}
further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param;
{
int sadpb = x->sadperbit4;
int_mv mvp_full;
mvp_full.as_mv.row = bsi->mvp.as_mv.row >>3;
mvp_full.as_mv.col = bsi->mvp.as_mv.col >>3;
// find first label
n = vp8_mbsplit_offset[segmentation][i];
c = &x->block[n];
e = &x->e_mbd.block[n];
{
bestsme = cpi->diamond_search_sad(x, c, e, &mvp_full,
&mode_mv[NEW4X4], step_param,
sadpb, &num00, v_fn_ptr,
x->mvcost, bsi->ref_mv);
n = num00;
num00 = 0;
while (n < further_steps)
{
n++;
if (num00)
num00--;
else
{
thissme = cpi->diamond_search_sad(x, c, e,
&mvp_full, &temp_mv,
step_param + n, sadpb,
&num00, v_fn_ptr,
x->mvcost, bsi->ref_mv);
if (thissme < bestsme)
{
bestsme = thissme;
mode_mv[NEW4X4].as_int = temp_mv.as_int;
}
}
}
}
sseshift = segmentation_to_sseshift[segmentation];
// Should we do a full search (best quality only)
if ((cpi->compressor_speed == 0) && (bestsme >> sseshift) > 4000)
{
/* Check if mvp_full is within the range. */
vp8_clamp_mv(&mvp_full, x->mv_col_min, x->mv_col_max, x->mv_row_min, x->mv_row_max);
thissme = cpi->full_search_sad(x, c, e, &mvp_full,
sadpb, 16, v_fn_ptr,
x->mvcost, bsi->ref_mv);
if (thissme < bestsme)
{
bestsme = thissme;
mode_mv[NEW4X4].as_int = e->bmi.mv.as_int;
}
else
{
// The full search result is actually worse so re-instate the previous best vector
e->bmi.mv.as_int = mode_mv[NEW4X4].as_int;
}
}
}
if (bestsme < INT_MAX)
{
int distortion;
unsigned int sse;
cpi->find_fractional_mv_step(x, c, e, &mode_mv[NEW4X4],
bsi->ref_mv, x->errorperbit, v_fn_ptr, x->mvcost,
&distortion, &sse);
}
} /* NEW4X4 */
rate = labels2mode(x, labels, i, this_mode, &mode_mv[this_mode],
bsi->ref_mv, x->mvcost);
// Trap vectors that reach beyond the UMV borders
if (((mode_mv[this_mode].as_mv.row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].as_mv.row >> 3) > x->mv_row_max) ||
((mode_mv[this_mode].as_mv.col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].as_mv.col >> 3) > x->mv_col_max))
{
continue;
}
distortion = vp8_encode_inter_mb_segment(x, labels, i, IF_RTCD(&cpi->rtcd.encodemb)) / 4;
labelyrate = rdcost_mbsegment_y(x, labels, i, ta_s, tl_s);
rate += labelyrate;
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_label_rd)
{
sbr = rate;
sbd = distortion;
bestlabelyrate = labelyrate;
mode_selected = this_mode;
best_label_rd = this_rd;
vpx_memcpy(ta_b, ta_s, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(tl_b, tl_s, sizeof(ENTROPY_CONTEXT_PLANES));
}
} /*for each 4x4 mode*/
vpx_memcpy(ta, ta_b, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(tl, tl_b, sizeof(ENTROPY_CONTEXT_PLANES));
labels2mode(x, labels, i, mode_selected, &mode_mv[mode_selected],
bsi->ref_mv, x->mvcost);
br += sbr;
bd += sbd;
segmentyrate += bestlabelyrate;
this_segment_rd += best_label_rd;
if (this_segment_rd >= bsi->segment_rd)
break;
} /* for each label */
if (this_segment_rd < bsi->segment_rd)
{
bsi->r = br;
bsi->d = bd;
bsi->segment_yrate = segmentyrate;
bsi->segment_rd = this_segment_rd;
bsi->segment_num = segmentation;
// store everything needed to come back to this!!
for (i = 0; i < 16; i++)
{
BLOCKD *bd = &x->e_mbd.block[i];
bsi->mvs[i].as_mv = x->partition_info->bmi[i].mv.as_mv;
bsi->modes[i] = x->partition_info->bmi[i].mode;
bsi->eobs[i] = bd->eob;
}
}
}
static __inline
void vp8_cal_step_param(int sr, int *sp)
{
int step = 0;
if (sr > MAX_FIRST_STEP) sr = MAX_FIRST_STEP;
else if (sr < 1) sr = 1;
while (sr>>=1)
step++;
*sp = MAX_MVSEARCH_STEPS - 1 - step;
}
static int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x,
int_mv *best_ref_mv, int best_rd,
int *mdcounts, int *returntotrate,
int *returnyrate, int *returndistortion,
int mvthresh)
{
int i;
BEST_SEG_INFO bsi;
vpx_memset(&bsi, 0, sizeof(bsi));
bsi.segment_rd = best_rd;
bsi.ref_mv = best_ref_mv;
bsi.mvp.as_int = best_ref_mv->as_int;
bsi.mvthresh = mvthresh;
bsi.mdcounts = mdcounts;
for(i = 0; i < 16; i++)
{
bsi.modes[i] = ZERO4X4;
}
if(cpi->compressor_speed == 0)
{
/* for now, we will keep the original segmentation order
when in best quality mode */
rd_check_segment(cpi, x, &bsi, BLOCK_16X8);
rd_check_segment(cpi, x, &bsi, BLOCK_8X16);
rd_check_segment(cpi, x, &bsi, BLOCK_8X8);
rd_check_segment(cpi, x, &bsi, BLOCK_4X4);
}
else
{
int sr;
rd_check_segment(cpi, x, &bsi, BLOCK_8X8);
if (bsi.segment_rd < best_rd)
{
int col_min = (best_ref_mv->as_mv.col>>3) - MAX_FULL_PEL_VAL + ((best_ref_mv->as_mv.col & 7)?1:0);
int row_min = (best_ref_mv->as_mv.row>>3) - MAX_FULL_PEL_VAL + ((best_ref_mv->as_mv.row & 7)?1:0);
int col_max = (best_ref_mv->as_mv.col>>3) + MAX_FULL_PEL_VAL;
int row_max = (best_ref_mv->as_mv.row>>3) + MAX_FULL_PEL_VAL;
int tmp_col_min = x->mv_col_min;
int tmp_col_max = x->mv_col_max;
int tmp_row_min = x->mv_row_min;
int tmp_row_max = x->mv_row_max;
/* Get intersection of UMV window and valid MV window to reduce # of checks in diamond search. */
if (x->mv_col_min < col_min )
x->mv_col_min = col_min;
if (x->mv_col_max > col_max )
x->mv_col_max = col_max;
if (x->mv_row_min < row_min )
x->mv_row_min = row_min;
if (x->mv_row_max > row_max )
x->mv_row_max = row_max;
/* Get 8x8 result */
bsi.sv_mvp[0].as_int = bsi.mvs[0].as_int;
bsi.sv_mvp[1].as_int = bsi.mvs[2].as_int;
bsi.sv_mvp[2].as_int = bsi.mvs[8].as_int;
bsi.sv_mvp[3].as_int = bsi.mvs[10].as_int;
/* Use 8x8 result as 16x8/8x16's predictor MV. Adjust search range according to the closeness of 2 MV. */
/* block 8X16 */
{
sr = MAXF((abs(bsi.sv_mvp[0].as_mv.row - bsi.sv_mvp[2].as_mv.row))>>3, (abs(bsi.sv_mvp[0].as_mv.col - bsi.sv_mvp[2].as_mv.col))>>3);
vp8_cal_step_param(sr, &bsi.sv_istep[0]);
sr = MAXF((abs(bsi.sv_mvp[1].as_mv.row - bsi.sv_mvp[3].as_mv.row))>>3, (abs(bsi.sv_mvp[1].as_mv.col - bsi.sv_mvp[3].as_mv.col))>>3);
vp8_cal_step_param(sr, &bsi.sv_istep[1]);
rd_check_segment(cpi, x, &bsi, BLOCK_8X16);
}
/* block 16X8 */
{
sr = MAXF((abs(bsi.sv_mvp[0].as_mv.row - bsi.sv_mvp[1].as_mv.row))>>3, (abs(bsi.sv_mvp[0].as_mv.col - bsi.sv_mvp[1].as_mv.col))>>3);
vp8_cal_step_param(sr, &bsi.sv_istep[0]);
sr = MAXF((abs(bsi.sv_mvp[2].as_mv.row - bsi.sv_mvp[3].as_mv.row))>>3, (abs(bsi.sv_mvp[2].as_mv.col - bsi.sv_mvp[3].as_mv.col))>>3);
vp8_cal_step_param(sr, &bsi.sv_istep[1]);
rd_check_segment(cpi, x, &bsi, BLOCK_16X8);
}
/* If 8x8 is better than 16x8/8x16, then do 4x4 search */
/* Not skip 4x4 if speed=0 (good quality) */
if (cpi->sf.no_skip_block4x4_search || bsi.segment_num == BLOCK_8X8) /* || (sv_segment_rd8x8-bsi.segment_rd) < sv_segment_rd8x8>>5) */
{
bsi.mvp.as_int = bsi.sv_mvp[0].as_int;
rd_check_segment(cpi, x, &bsi, BLOCK_4X4);
}
/* restore UMV window */
x->mv_col_min = tmp_col_min;
x->mv_col_max = tmp_col_max;
x->mv_row_min = tmp_row_min;
x->mv_row_max = tmp_row_max;
}
}
/* set it to the best */
for (i = 0; i < 16; i++)
{
BLOCKD *bd = &x->e_mbd.block[i];
bd->bmi.mv.as_int = bsi.mvs[i].as_int;
bd->eob = bsi.eobs[i];
}
*returntotrate = bsi.r;
*returndistortion = bsi.d;
*returnyrate = bsi.segment_yrate;
/* save partitions */
x->e_mbd.mode_info_context->mbmi.partitioning = bsi.segment_num;
x->partition_info->count = vp8_mbsplit_count[bsi.segment_num];
for (i = 0; i < x->partition_info->count; i++)
{
int j;
j = vp8_mbsplit_offset[bsi.segment_num][i];
x->partition_info->bmi[i].mode = bsi.modes[j];
x->partition_info->bmi[i].mv.as_mv = bsi.mvs[j].as_mv;
}
/*
* used to set x->e_mbd.mode_info_context->mbmi.mv.as_int
*/
x->partition_info->bmi[15].mv.as_int = bsi.mvs[15].as_int;
return bsi.segment_rd;
}
/* Order arr in increasing order, original position stored in idx */
static void insertsortmv(int arr[], int len)
{
int i, j, k;
for ( i = 1 ; i <= len-1 ; i++ )
{
for ( j = 0 ; j < i ; j++ )
{
if ( arr[j] > arr[i] )
{
int temp;
temp = arr[i];
for ( k = i; k >j; k--)
arr[k] = arr[k - 1] ;
arr[j] = temp ;
}
}
}
}
static void insertsortsad(int arr[],int idx[], int len)
{
int i, j, k;
for ( i = 1 ; i <= len-1 ; i++ )
{
for ( j = 0 ; j < i ; j++ )
{
if ( arr[j] > arr[i] )
{
int temp, tempi;
temp = arr[i];
tempi = idx[i];
for ( k = i; k >j; k--)
{
arr[k] = arr[k - 1] ;
idx[k] = idx[k - 1];
}
arr[j] = temp ;
idx[j] = tempi;
}
}
}
}
//The improved MV prediction
void vp8_mv_pred
(
VP8_COMP *cpi,
MACROBLOCKD *xd,
const MODE_INFO *here,
int_mv *mvp,
int refframe,
int *ref_frame_sign_bias,
int *sr,
int near_sadidx[]
)
{
const MODE_INFO *above = here - xd->mode_info_stride;
const MODE_INFO *left = here - 1;
const MODE_INFO *aboveleft = above - 1;
int_mv near_mvs[8];
int near_ref[8];
int_mv mv;
int vcnt=0;
int find=0;
int mb_offset;
int mvx[8];
int mvy[8];
int i;
mv.as_int = 0;
if(here->mbmi.ref_frame != INTRA_FRAME)
{
near_mvs[0].as_int = near_mvs[1].as_int = near_mvs[2].as_int = near_mvs[3].as_int = near_mvs[4].as_int = near_mvs[5].as_int = near_mvs[6].as_int = near_mvs[7].as_int = 0;
near_ref[0] = near_ref[1] = near_ref[2] = near_ref[3] = near_ref[4] = near_ref[5] = near_ref[6] = near_ref[7] = 0;
// read in 3 nearby block's MVs from current frame as prediction candidates.
if (above->mbmi.ref_frame != INTRA_FRAME)
{
near_mvs[vcnt].as_int = above->mbmi.mv.as_int;
mv_bias(ref_frame_sign_bias[above->mbmi.ref_frame], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = above->mbmi.ref_frame;
}
vcnt++;
if (left->mbmi.ref_frame != INTRA_FRAME)
{
near_mvs[vcnt].as_int = left->mbmi.mv.as_int;
mv_bias(ref_frame_sign_bias[left->mbmi.ref_frame], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = left->mbmi.ref_frame;
}
vcnt++;
if (aboveleft->mbmi.ref_frame != INTRA_FRAME)
{
near_mvs[vcnt].as_int = aboveleft->mbmi.mv.as_int;
mv_bias(ref_frame_sign_bias[aboveleft->mbmi.ref_frame], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = aboveleft->mbmi.ref_frame;
}
vcnt++;
// read in 5 nearby block's MVs from last frame.
if(cpi->common.last_frame_type != KEY_FRAME)
{
mb_offset = (-xd->mb_to_top_edge/128 + 1) * (xd->mode_info_stride +1) + (-xd->mb_to_left_edge/128 +1) ;
// current in last frame
if (cpi->lf_ref_frame[mb_offset] != INTRA_FRAME)
{
near_mvs[vcnt].as_int = cpi->lfmv[mb_offset].as_int;
mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = cpi->lf_ref_frame[mb_offset];
}
vcnt++;
// above in last frame
if (cpi->lf_ref_frame[mb_offset - xd->mode_info_stride-1] != INTRA_FRAME)
{
near_mvs[vcnt].as_int = cpi->lfmv[mb_offset - xd->mode_info_stride-1].as_int;
mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset - xd->mode_info_stride-1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = cpi->lf_ref_frame[mb_offset - xd->mode_info_stride-1];
}
vcnt++;
// left in last frame
if (cpi->lf_ref_frame[mb_offset-1] != INTRA_FRAME)
{
near_mvs[vcnt].as_int = cpi->lfmv[mb_offset -1].as_int;
mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset -1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = cpi->lf_ref_frame[mb_offset - 1];
}
vcnt++;
// right in last frame
if (cpi->lf_ref_frame[mb_offset +1] != INTRA_FRAME)
{
near_mvs[vcnt].as_int = cpi->lfmv[mb_offset +1].as_int;
mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset +1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = cpi->lf_ref_frame[mb_offset +1];
}
vcnt++;
// below in last frame
if (cpi->lf_ref_frame[mb_offset + xd->mode_info_stride +1] != INTRA_FRAME)
{
near_mvs[vcnt].as_int = cpi->lfmv[mb_offset + xd->mode_info_stride +1].as_int;
mv_bias(cpi->lf_ref_frame_sign_bias[mb_offset + xd->mode_info_stride +1], refframe, &near_mvs[vcnt], ref_frame_sign_bias);
near_ref[vcnt] = cpi->lf_ref_frame[mb_offset + xd->mode_info_stride +1];
}
vcnt++;
}
for(i=0; i< vcnt; i++)
{
if(near_ref[near_sadidx[i]] != INTRA_FRAME)
{
if(here->mbmi.ref_frame == near_ref[near_sadidx[i]])
{
mv.as_int = near_mvs[near_sadidx[i]].as_int;
find = 1;
if (i < 3)
*sr = 3;
else
*sr = 2;
break;
}
}
}
if(!find)
{
for(i=0; i<vcnt; i++)
{
mvx[i] = near_mvs[i].as_mv.row;
mvy[i] = near_mvs[i].as_mv.col;
}
insertsortmv(mvx, vcnt);
insertsortmv(mvy, vcnt);
mv.as_mv.row = mvx[vcnt/2];
mv.as_mv.col = mvy[vcnt/2];
find = 1;
//sr is set to 0 to allow calling function to decide the search range.
*sr = 0;
}
}
/* Set up return values */
mvp->as_int = mv.as_int;
vp8_clamp_mv2(mvp, xd);
}
void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[])
{
int near_sad[8] = {0}; // 0-cf above, 1-cf left, 2-cf aboveleft, 3-lf current, 4-lf above, 5-lf left, 6-lf right, 7-lf below
BLOCK *b = &x->block[0];
unsigned char *src_y_ptr = *(b->base_src);
//calculate sad for current frame 3 nearby MBs.
if( xd->mb_to_top_edge==0 && xd->mb_to_left_edge ==0)
{
near_sad[0] = near_sad[1] = near_sad[2] = INT_MAX;
}else if(xd->mb_to_top_edge==0)
{ //only has left MB for sad calculation.
near_sad[0] = near_sad[2] = INT_MAX;
near_sad[1] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - 16,xd->dst.y_stride, 0x7fffffff);
}else if(xd->mb_to_left_edge ==0)
{ //only has left MB for sad calculation.
near_sad[1] = near_sad[2] = INT_MAX;
near_sad[0] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - xd->dst.y_stride *16,xd->dst.y_stride, 0x7fffffff);
}else
{
near_sad[0] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - xd->dst.y_stride *16,xd->dst.y_stride, 0x7fffffff);
near_sad[1] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - 16,xd->dst.y_stride, 0x7fffffff);
near_sad[2] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, xd->dst.y_buffer - xd->dst.y_stride *16 -16,xd->dst.y_stride, 0x7fffffff);
}
if(cpi->common.last_frame_type != KEY_FRAME)
{
//calculate sad for last frame 5 nearby MBs.
unsigned char *pre_y_buffer = cpi->common.yv12_fb[cpi->common.lst_fb_idx].y_buffer + recon_yoffset;
int pre_y_stride = cpi->common.yv12_fb[cpi->common.lst_fb_idx].y_stride;
if(xd->mb_to_top_edge==0) near_sad[4] = INT_MAX;
if(xd->mb_to_left_edge ==0) near_sad[5] = INT_MAX;
if(xd->mb_to_right_edge ==0) near_sad[6] = INT_MAX;
if(xd->mb_to_bottom_edge==0) near_sad[7] = INT_MAX;
if(near_sad[4] != INT_MAX)
near_sad[4] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer - pre_y_stride *16, pre_y_stride, 0x7fffffff);
if(near_sad[5] != INT_MAX)
near_sad[5] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer - 16, pre_y_stride, 0x7fffffff);
near_sad[3] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer, pre_y_stride, 0x7fffffff);
if(near_sad[6] != INT_MAX)
near_sad[6] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer + 16, pre_y_stride, 0x7fffffff);
if(near_sad[7] != INT_MAX)
near_sad[7] = cpi->fn_ptr[BLOCK_16X16].sdf(src_y_ptr, b->src_stride, pre_y_buffer + pre_y_stride *16, pre_y_stride, 0x7fffffff);
}
if(cpi->common.last_frame_type != KEY_FRAME)
{
insertsortsad(near_sad, near_sadidx, 8);
}else
{
insertsortsad(near_sad, near_sadidx, 3);
}
}
static void rd_update_mvcount(VP8_COMP *cpi, MACROBLOCK *x, int_mv *best_ref_mv)
{
if (x->e_mbd.mode_info_context->mbmi.mode == SPLITMV)
{
int i;
for (i = 0; i < x->partition_info->count; i++)
{
if (x->partition_info->bmi[i].mode == NEW4X4)
{
cpi->MVcount[0][mv_max+((x->partition_info->bmi[i].mv.as_mv.row
- best_ref_mv->as_mv.row) >> 1)]++;
cpi->MVcount[1][mv_max+((x->partition_info->bmi[i].mv.as_mv.col
- best_ref_mv->as_mv.col) >> 1)]++;
}
}
}
else if (x->e_mbd.mode_info_context->mbmi.mode == NEWMV)
{
cpi->MVcount[0][mv_max+((x->e_mbd.mode_info_context->mbmi.mv.as_mv.row
- best_ref_mv->as_mv.row) >> 1)]++;
cpi->MVcount[1][mv_max+((x->e_mbd.mode_info_context->mbmi.mv.as_mv.col
- best_ref_mv->as_mv.col) >> 1)]++;
}
}
static void set_i8x8_block_modes(MACROBLOCK *x, int *modes)
{
int i;
MACROBLOCKD *xd = &x->e_mbd;
for(i=0;i<4;i++)
{
int ib = vp8_i8x8_block[i];
x->e_mbd.mode_info_context->bmi[ib+0].as_mode= modes[i];
x->e_mbd.mode_info_context->bmi[ib+1].as_mode= modes[i];
x->e_mbd.mode_info_context->bmi[ib+4].as_mode= modes[i];
x->e_mbd.mode_info_context->bmi[ib+5].as_mode= modes[i];
}
for (i = 0; i < 16; i++)
{
xd->block[i].bmi = xd->mode_info_context->bmi[i];
}
}
void vp8_estimate_ref_frame_costs(VP8_COMP *cpi, unsigned int * ref_costs )
{
VP8_COMMON *cm = &cpi->common;
MACROBLOCKD *xd = &cpi->mb.e_mbd;
vp8_prob * mod_refprobs;
unsigned int cost;
int pred_ref ;
int pred_flag;
int i;
vp8_prob pred_prob;
// Get the predicted reference for this mb
pred_ref = get_pred_ref( cm, xd );
// Get the context probability for the prediction flag
pred_prob = get_pred_prob( cm, xd, PRED_REF );
// Get the set of probailities to use if prediction fails
mod_refprobs = cm->mod_refprobs[pred_ref];
// For each possible selected reference frame work out a cost.
// TODO: correct handling of costs if segment indicates only a subset of
// reference frames are allowed... though mostly this should come out
// in the wash.
for ( i = 0; i < MAX_REF_FRAMES; i++ )
{
pred_flag = (i == pred_ref);
// Get the prediction for the current mb
cost = vp8_cost_bit( pred_prob, pred_flag );
// for incorectly predicted cases
if ( ! pred_flag )
{
if ( mod_refprobs[0] )
cost += vp8_cost_bit( (i != INTRA_FRAME), mod_refprobs[0] );
// Inter coded
if (i != INTRA_FRAME)
{
if ( mod_refprobs[1] )
cost += vp8_cost_bit( (i != LAST_FRAME), mod_refprobs[1] );
if (i != LAST_FRAME)
{
if ( mod_refprobs[2] )
cost += vp8_cost_bit( (i != GOLDEN_FRAME),
mod_refprobs[2] );
}
}
}
ref_costs[i] = cost;
}
}
void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset,
int *returnrate, int *returndistortion, int *returnintra,
int *best_single_rd_diff, int *best_dual_rd_diff,
int *best_hybrid_rd_diff)
{
VP8_COMMON *cm = &cpi->common;
BLOCK *b = &x->block[0];
BLOCKD *d = &x->e_mbd.block[0];
MACROBLOCKD *xd = &x->e_mbd;
union b_mode_info best_bmodes[16];
MB_MODE_INFO best_mbmode;
PARTITION_INFO best_partition;
int_mv best_ref_mv;
int_mv mode_mv[MB_MODE_COUNT];
MB_PREDICTION_MODE this_mode;
int num00;
int best_mode_index = 0;
int mode8x8[4];
unsigned char segment_id = xd->mode_info_context->mbmi.segment_id;
int i;
int mode_index;
int mdcounts[4];
int rate;
int distortion;
int best_rd = INT_MAX;
int best_intra_rd = INT_MAX;
int best_dual_rd = INT_MAX;
int best_single_rd = INT_MAX;
int best_hybrid_rd = INT_MAX;
int rate2, distortion2;
int uv_intra_rate, uv_intra_distortion, uv_intra_rate_tokenonly;
int rate_y, UNINITIALIZED_IS_SAFE(rate_uv);
int distortion_uv;
int best_yrd = INT_MAX;
//int all_rds[MAX_MODES]; // Experimental debug code.
//int all_rates[MAX_MODES];
//int all_dist[MAX_MODES];
//int intermodecost[MAX_MODES];
MB_PREDICTION_MODE uv_intra_mode;
int_mv mvp;
int near_sadidx[8] = {0, 1, 2, 3, 4, 5, 6, 7};
int saddone=0;
int sr=0; //search range got from mv_pred(). It uses step_param levels. (0-7)
int_mv frame_nearest_mv[4];
int_mv frame_near_mv[4];
int_mv frame_best_ref_mv[4];
int_mv mc_search_result[4];
int frame_mdcounts[4][4];
unsigned char *y_buffer[4];
unsigned char *u_buffer[4];
unsigned char *v_buffer[4];
unsigned int ref_costs[MAX_REF_FRAMES];
vpx_memset(&best_mbmode, 0, sizeof(best_mbmode));
vpx_memset(&best_bmodes, 0, sizeof(best_bmodes));
for (i = 0; i < 4; i++)
{
#define INVALID_MV 0x80008000
mc_search_result[i].as_int = INVALID_MV;
}
if (cpi->ref_frame_flags & VP8_LAST_FLAG)
{
YV12_BUFFER_CONFIG *lst_yv12 = &cpi->common.yv12_fb[cpi->common.lst_fb_idx];
vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context,
x->e_mbd.prev_mode_info_context,
&frame_nearest_mv[LAST_FRAME], &frame_near_mv[LAST_FRAME],
&frame_best_ref_mv[LAST_FRAME], frame_mdcounts[LAST_FRAME], LAST_FRAME, cpi->common.ref_frame_sign_bias);
y_buffer[LAST_FRAME] = lst_yv12->y_buffer + recon_yoffset;
u_buffer[LAST_FRAME] = lst_yv12->u_buffer + recon_uvoffset;
v_buffer[LAST_FRAME] = lst_yv12->v_buffer + recon_uvoffset;
}
if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
{
YV12_BUFFER_CONFIG *gld_yv12 = &cpi->common.yv12_fb[cpi->common.gld_fb_idx];
vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context,
x->e_mbd.prev_mode_info_context,
&frame_nearest_mv[GOLDEN_FRAME], &frame_near_mv[GOLDEN_FRAME],
&frame_best_ref_mv[GOLDEN_FRAME], frame_mdcounts[GOLDEN_FRAME], GOLDEN_FRAME, cpi->common.ref_frame_sign_bias);
y_buffer[GOLDEN_FRAME] = gld_yv12->y_buffer + recon_yoffset;
u_buffer[GOLDEN_FRAME] = gld_yv12->u_buffer + recon_uvoffset;
v_buffer[GOLDEN_FRAME] = gld_yv12->v_buffer + recon_uvoffset;
}
if (cpi->ref_frame_flags & VP8_ALT_FLAG)
{
YV12_BUFFER_CONFIG *alt_yv12 = &cpi->common.yv12_fb[cpi->common.alt_fb_idx];
vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context,
x->e_mbd.prev_mode_info_context,
&frame_nearest_mv[ALTREF_FRAME], &frame_near_mv[ALTREF_FRAME],
&frame_best_ref_mv[ALTREF_FRAME], frame_mdcounts[ALTREF_FRAME], ALTREF_FRAME, cpi->common.ref_frame_sign_bias);
y_buffer[ALTREF_FRAME] = alt_yv12->y_buffer + recon_yoffset;
u_buffer[ALTREF_FRAME] = alt_yv12->u_buffer + recon_uvoffset;
v_buffer[ALTREF_FRAME] = alt_yv12->v_buffer + recon_uvoffset;
}
*returnintra = INT_MAX;
cpi->mbs_tested_so_far++; // Count of the number of MBs tested so far this frame
x->skip = 0;
vpx_memset(mode_mv, 0, sizeof(mode_mv));
x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
rd_pick_intra_mbuv_mode(cpi, x, &uv_intra_rate, &uv_intra_rate_tokenonly, &uv_intra_distortion);
uv_intra_mode = x->e_mbd.mode_info_context->mbmi.uv_mode;
// Get estimates of reference frame costs for each reference frame
// that depend on the current prediction etc.
vp8_estimate_ref_frame_costs( cpi, ref_costs );
for (mode_index = 0; mode_index < MAX_MODES; mode_index++)
{
int this_rd = INT_MAX;
int disable_skip = 0;
int other_cost = 0;
int dualmode_cost = 0;
int mode_excluded = 0;
// Experimental debug code.
// Record of rd values recorded for this MB. -1 indicates not measured
//all_rds[mode_index] = -1;
//all_rates[mode_index] = -1;
//all_dist[mode_index] = -1;
//intermodecost[mode_index] = -1;
// Test best rd so far against threshold for trying this mode.
if (best_rd <= cpi->rd_threshes[mode_index])
continue;
// These variables hold are rolling total cost and distortion for this mode
rate2 = 0;
distortion2 = 0;
this_mode = vp8_mode_order[mode_index];
x->e_mbd.mode_info_context->mbmi.mode = this_mode;
x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
x->e_mbd.mode_info_context->mbmi.ref_frame = vp8_ref_frame_order[mode_index];
x->e_mbd.mode_info_context->mbmi.second_ref_frame = vp8_second_ref_frame_order[mode_index];
// If the segment reference frame feature is enabled....
// then do nothing if the current ref frame is not allowed..
if ( segfeature_active( xd, segment_id, SEG_LVL_REF_FRAME ) &&
!check_segref( xd, segment_id,
xd->mode_info_context->mbmi.ref_frame ) )
{
continue;
}
// If the segment mode feature is enabled....
// then do nothing if the current mode is not allowed..
else if ( segfeature_active( xd, segment_id, SEG_LVL_MODE ) &&
( this_mode !=
get_segdata( xd, segment_id, SEG_LVL_MODE ) ) )
{
continue;
}
// Disable this drop out case if either the mode or ref frame
// segment level feature is enabled for this segment. This is to
// prevent the possibility that the we end up unable to pick any mode.
else if ( !segfeature_active( xd, segment_id, SEG_LVL_REF_FRAME ) &&
!segfeature_active( xd, segment_id, SEG_LVL_MODE ) )
{
// Only consider ZEROMV/ALTREF_FRAME for alt ref frame,
// unless ARNR filtering is enabled in which case we want
// an unfiltered alternative
if (cpi->is_src_frame_alt_ref && (cpi->oxcf.arnr_max_frames == 0))
{
if (this_mode != ZEROMV ||
x->e_mbd.mode_info_context->mbmi.ref_frame != ALTREF_FRAME)
continue;
}
}
/* everything but intra */
if (x->e_mbd.mode_info_context->mbmi.ref_frame)
{
x->e_mbd.pre.y_buffer = y_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
x->e_mbd.pre.u_buffer = u_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
x->e_mbd.pre.v_buffer = v_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
mode_mv[NEARESTMV] = frame_nearest_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
mode_mv[NEARMV] = frame_near_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
best_ref_mv = frame_best_ref_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
vpx_memcpy(mdcounts, frame_mdcounts[x->e_mbd.mode_info_context->mbmi.ref_frame], sizeof(mdcounts));
}
// Experimental code. Special case for gf and arf zeromv modes.
// Increase zbin size to suppress noise
if (cpi->zbin_mode_boost_enabled)
{
if ( vp8_ref_frame_order[mode_index] == INTRA_FRAME )
cpi->zbin_mode_boost = 0;
else
{
if (vp8_mode_order[mode_index] == ZEROMV)
{
if (vp8_ref_frame_order[mode_index] != LAST_FRAME)
cpi->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
else
cpi->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST;
}
else if (vp8_mode_order[mode_index] == SPLITMV)
cpi->zbin_mode_boost = 0;
else
cpi->zbin_mode_boost = MV_ZBIN_BOOST;
}
vp8_update_zbin_extra(cpi, x);
}
if (!x->e_mbd.mode_info_context->mbmi.second_ref_frame)
switch (this_mode)
{
case B_PRED:
{
int tmp_rd;
// Note the rate value returned here includes the cost of coding the BPRED mode : x->mbmode_cost[x->e_mbd.frame_type][BPRED];
tmp_rd = rd_pick_intra4x4mby_modes(cpi, x, &rate, &rate_y, &distortion, best_yrd);
rate2 += rate;
distortion2 += distortion;
if(tmp_rd < best_yrd)
{
rate2 += uv_intra_rate;
rate_uv = uv_intra_rate_tokenonly;
distortion2 += uv_intra_distortion;
distortion_uv = uv_intra_distortion;
}
else
{
this_rd = INT_MAX;
disable_skip = 1;
}
}
break;
case I8X8_PRED:
{
int tmp_rd;
tmp_rd = rd_pick_intra8x8mby_modes(cpi,
x, &rate, &rate_y, &distortion, best_yrd);
rate2 += rate;
distortion2 += distortion;
mode8x8[0]= x->e_mbd.mode_info_context->bmi[0].as_mode;
mode8x8[1]= x->e_mbd.mode_info_context->bmi[2].as_mode;
mode8x8[2]= x->e_mbd.mode_info_context->bmi[8].as_mode;
mode8x8[3]= x->e_mbd.mode_info_context->bmi[10].as_mode;
/* TODO: uv rate maybe over-estimated here since there is UV intra
mode coded in I8X8_PRED prediction */
if(tmp_rd < best_yrd)
{
rate2 += uv_intra_rate;
rate_uv = uv_intra_rate_tokenonly;
distortion2 += uv_intra_distortion;
distortion_uv = uv_intra_distortion;
}
else
{
this_rd = INT_MAX;
disable_skip = 1;
}
}
break;
case SPLITMV:
{
int tmp_rd;
int this_rd_thresh;
this_rd_thresh = (x->e_mbd.mode_info_context->mbmi.ref_frame == LAST_FRAME) ? cpi->rd_threshes[THR_NEWMV] : cpi->rd_threshes[THR_NEWA];
this_rd_thresh = (x->e_mbd.mode_info_context->mbmi.ref_frame == GOLDEN_FRAME) ? cpi->rd_threshes[THR_NEWG]: this_rd_thresh;
tmp_rd = vp8_rd_pick_best_mbsegmentation(cpi, x, &best_ref_mv,
best_yrd, mdcounts,
&rate, &rate_y, &distortion, this_rd_thresh) ;
rate2 += rate;
distortion2 += distortion;
// If even the 'Y' rd value of split is higher than best so far then dont bother looking at UV
if (tmp_rd < best_yrd)
{
// Now work out UV cost and add it in
rd_inter4x4_uv(cpi, x, &rate_uv, &distortion_uv, cpi->common.full_pixel);
rate2 += rate_uv;
distortion2 += distortion_uv;
}
else
{
this_rd = INT_MAX;
disable_skip = 1;
}
}
break;
case DC_PRED:
case V_PRED:
case H_PRED:
case TM_PRED:
x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
RECON_INVOKE(&cpi->common.rtcd.recon, build_intra_predictors_mby)
(&x->e_mbd);
#if CONFIG_T8X8
if(cpi->common.txfm_mode == ALLOW_8X8)
macro_block_yrd_8x8(x, &rate_y, &distortion,
IF_RTCD(&cpi->rtcd)) ;
else
#endif
macro_block_yrd(x, &rate_y, &distortion,
IF_RTCD(&cpi->rtcd.encodemb)) ;
rate2 += rate_y;
distortion2 += distortion;
rate2 += x->mbmode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.mode];
rate2 += uv_intra_rate;
rate_uv = uv_intra_rate_tokenonly;
distortion2 += uv_intra_distortion;
distortion_uv = uv_intra_distortion;
break;
case NEWMV:
{
int thissme;
int bestsme = INT_MAX;
int step_param = cpi->sf.first_step;
int further_steps;
int n;
int do_refine=1; /* If last step (1-away) of n-step search doesn't pick the center point as the best match,
we will do a final 1-away diamond refining search */
int sadpb = x->sadperbit16;
int_mv mvp_full;
int col_min = (best_ref_mv.as_mv.col>>3) - MAX_FULL_PEL_VAL + ((best_ref_mv.as_mv.col & 7)?1:0);
int row_min = (best_ref_mv.as_mv.row>>3) - MAX_FULL_PEL_VAL + ((best_ref_mv.as_mv.row & 7)?1:0);
int col_max = (best_ref_mv.as_mv.col>>3) + MAX_FULL_PEL_VAL;
int row_max = (best_ref_mv.as_mv.row>>3) + MAX_FULL_PEL_VAL;
int tmp_col_min = x->mv_col_min;
int tmp_col_max = x->mv_col_max;
int tmp_row_min = x->mv_row_min;
int tmp_row_max = x->mv_row_max;
if(!saddone)
{
vp8_cal_sad(cpi,xd,x, recon_yoffset ,&near_sadidx[0] );
saddone = 1;
}
vp8_mv_pred(cpi, &x->e_mbd, x->e_mbd.mode_info_context, &mvp,
x->e_mbd.mode_info_context->mbmi.ref_frame, cpi->common.ref_frame_sign_bias, &sr, &near_sadidx[0]);
mvp_full.as_mv.col = mvp.as_mv.col>>3;
mvp_full.as_mv.row = mvp.as_mv.row>>3;
// Get intersection of UMV window and valid MV window to reduce # of checks in diamond search.
if (x->mv_col_min < col_min )
x->mv_col_min = col_min;
if (x->mv_col_max > col_max )
x->mv_col_max = col_max;
if (x->mv_row_min < row_min )
x->mv_row_min = row_min;
if (x->mv_row_max > row_max )
x->mv_row_max = row_max;
//adjust search range according to sr from mv prediction
if(sr > step_param)
step_param = sr;
// Initial step/diamond search
{
bestsme = cpi->diamond_search_sad(x, b, d, &mvp_full, &d->bmi.mv,
step_param, sadpb, &num00,
&cpi->fn_ptr[BLOCK_16X16],
x->mvcost, &best_ref_mv);
mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
// Further step/diamond searches as necessary
n = 0;
further_steps = (cpi->sf.max_step_search_steps - 1) - step_param;
n = num00;
num00 = 0;
/* If there won't be more n-step search, check to see if refining search is needed. */
if (n > further_steps)
do_refine = 0;
while (n < further_steps)
{
n++;
if (num00)
num00--;
else
{
thissme = cpi->diamond_search_sad(x, b, d, &mvp_full,
&d->bmi.mv, step_param + n, sadpb, &num00,
&cpi->fn_ptr[BLOCK_16X16], x->mvcost,
&best_ref_mv);
/* check to see if refining search is needed. */
if (num00 > (further_steps-n))
do_refine = 0;
if (thissme < bestsme)
{
bestsme = thissme;
mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
}
else
{
d->bmi.mv.as_int = mode_mv[NEWMV].as_int;
}
}
}
}
/* final 1-away diamond refining search */
if (do_refine == 1)
{
int search_range;
//It seems not a good way to set search_range. Need further investigation.
//search_range = MAXF(abs((mvp.row>>3) - d->bmi.mv.as_mv.row), abs((mvp.col>>3) - d->bmi.mv.as_mv.col));
search_range = 8;
//thissme = cpi->full_search_sad(x, b, d, &d->bmi.mv.as_mv, sadpb, search_range, &cpi->fn_ptr[BLOCK_16X16], x->mvcost, &best_ref_mv);
thissme = cpi->refining_search_sad(x, b, d, &d->bmi.mv, sadpb,
search_range, &cpi->fn_ptr[BLOCK_16X16],
x->mvcost, &best_ref_mv);
if (thissme < bestsme)
{
bestsme = thissme;
mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
}
else
{
d->bmi.mv.as_int = mode_mv[NEWMV].as_int;
}
}
x->mv_col_min = tmp_col_min;
x->mv_col_max = tmp_col_max;
x->mv_row_min = tmp_row_min;
x->mv_row_max = tmp_row_max;
if (bestsme < INT_MAX)
{
int dis; /* TODO: use dis in distortion calculation later. */
unsigned int sse;
cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv, &best_ref_mv,
x->errorperbit,
&cpi->fn_ptr[BLOCK_16X16],
x->mvcost, &dis, &sse);
}
mc_search_result[x->e_mbd.mode_info_context->mbmi.ref_frame].as_int = d->bmi.mv.as_int;
mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
// Add the new motion vector cost to our rolling cost variable
rate2 += vp8_mv_bit_cost(&mode_mv[NEWMV], &best_ref_mv, x->mvcost, 96);
}
case NEARESTMV:
case NEARMV:
// Clip "next_nearest" so that it does not extend to far out of image
vp8_clamp_mv2(&mode_mv[this_mode], xd);
// Do not bother proceeding if the vector (from newmv,nearest or near) is 0,0 as this should then be coded using the zeromv mode.
if (((this_mode == NEARMV) || (this_mode == NEARESTMV)) && (mode_mv[this_mode].as_int == 0))
continue;
case ZEROMV:
// Trap vectors that reach beyond the UMV borders
// Note that ALL New MV, Nearest MV Near MV and Zero MV code drops through to this point
// because of the lack of break statements in the previous two cases.
if (((mode_mv[this_mode].as_mv.row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].as_mv.row >> 3) > x->mv_row_max) ||
((mode_mv[this_mode].as_mv.col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].as_mv.col >> 3) > x->mv_col_max))
continue;
vp8_set_mbmode_and_mvs(x, this_mode, &mode_mv[this_mode]);
vp8_build_inter16x16_predictors_mby(&x->e_mbd);
dualmode_cost =
vp8_cost_bit( get_pred_prob( cm, xd, PRED_DUAL ), 0 );
if (cpi->active_map_enabled && x->active_ptr[0] == 0) {
x->skip = 1;
}
else if (x->encode_breakout)
{
unsigned int sse;
unsigned int var;
int threshold = (xd->block[0].dequant[1]
* xd->block[0].dequant[1] >>4);
if(threshold < x->encode_breakout)
threshold = x->encode_breakout;
var = VARIANCE_INVOKE(&cpi->rtcd.variance, var16x16)
(*(b->base_src), b->src_stride,
x->e_mbd.predictor, 16, &sse);
if (sse < threshold)
{
unsigned int q2dc = xd->block[24].dequant[0];
/* If theres is no codeable 2nd order dc
or a very small uniform pixel change change */
if ((sse - var < q2dc * q2dc >>4) ||
(sse /2 > var && sse-var < 64))
{
// Check u and v to make sure skip is ok
int sse2= VP8_UVSSE(x, IF_RTCD(&cpi->rtcd.variance));
if (sse2 * 2 < threshold)
{
x->skip = 1;
distortion2 = sse + sse2;
rate2 = 500;
/* for best_yrd calculation */
rate_uv = 0;
distortion_uv = sse2;
disable_skip = 1;
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
break;
}
}
}
}
//intermodecost[mode_index] = vp8_cost_mv_ref(this_mode, mdcounts); // Experimental debug code
// Add in the Mv/mode cost
rate2 += vp8_cost_mv_ref(&cpi->common, this_mode, mdcounts);
// Y cost and distortion
#if CONFIG_T8X8
if(cpi->common.txfm_mode == ALLOW_8X8)
macro_block_yrd_8x8(x, &rate_y, &distortion,
IF_RTCD(&cpi->rtcd));
else
#endif
macro_block_yrd(x, &rate_y, &distortion,
IF_RTCD(&cpi->rtcd.encodemb));
rate2 += rate_y;
distortion2 += distortion;
// UV cost and distortion
vp8_build_inter16x16_predictors_mbuv(&x->e_mbd);
rd_inter16x16_uv(cpi, x, &rate_uv, &distortion_uv, cpi->common.full_pixel);
rate2 += rate_uv;
distortion2 += distortion_uv;
mode_excluded = cpi->common.dual_pred_mode == DUAL_PREDICTION_ONLY;
break;
default:
break;
}
else /* x->e_mbd.mode_info_context->mbmi.second_ref_frame != 0 */
{
int ref1 = x->e_mbd.mode_info_context->mbmi.ref_frame;
int ref2 = x->e_mbd.mode_info_context->mbmi.second_ref_frame;
mode_excluded = cpi->common.dual_pred_mode == SINGLE_PREDICTION_ONLY;
switch (this_mode)
{
case NEWMV:
if (mc_search_result[ref1].as_int == INVALID_MV ||
mc_search_result[ref2].as_int == INVALID_MV)
continue;
x->e_mbd.mode_info_context->mbmi.mv.as_int = mc_search_result[ref1].as_int;
x->e_mbd.mode_info_context->mbmi.second_mv.as_int = mc_search_result[ref2].as_int;
rate2 += vp8_mv_bit_cost(&mc_search_result[ref1],
&frame_best_ref_mv[ref1], x->mvcost, 96);
rate2 += vp8_mv_bit_cost(&mc_search_result[ref2],
&frame_best_ref_mv[ref2], x->mvcost, 96);
break;
case ZEROMV:
x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
x->e_mbd.mode_info_context->mbmi.second_mv.as_int = 0;
break;
case NEARMV:
if (frame_near_mv[ref1].as_int == 0 || frame_near_mv[ref2].as_int == 0)
continue;
x->e_mbd.mode_info_context->mbmi.mv.as_int = frame_near_mv[ref1].as_int;
x->e_mbd.mode_info_context->mbmi.second_mv.as_int = frame_near_mv[ref2].as_int;
break;
case NEARESTMV:
if (frame_nearest_mv[ref1].as_int == 0 || frame_nearest_mv[ref2].as_int == 0)
continue;
x->e_mbd.mode_info_context->mbmi.mv.as_int = frame_nearest_mv[ref1].as_int;
x->e_mbd.mode_info_context->mbmi.second_mv.as_int = frame_nearest_mv[ref2].as_int;
break;
default:
break;
}
/* Add in the Mv/mode cost */
rate2 += vp8_cost_mv_ref(&cpi->common,this_mode, mdcounts);
vp8_clamp_mv2(&x->e_mbd.mode_info_context->mbmi.mv, xd);
vp8_clamp_mv2(&x->e_mbd.mode_info_context->mbmi.second_mv, xd);
if (((x->e_mbd.mode_info_context->mbmi.mv.as_mv.row >> 3) < x->mv_row_min) ||
((x->e_mbd.mode_info_context->mbmi.mv.as_mv.row >> 3) > x->mv_row_max) ||
((x->e_mbd.mode_info_context->mbmi.mv.as_mv.col >> 3) < x->mv_col_min) ||
((x->e_mbd.mode_info_context->mbmi.mv.as_mv.col >> 3) > x->mv_col_max) ||
((x->e_mbd.mode_info_context->mbmi.second_mv.as_mv.row >> 3) < x->mv_row_min) ||
((x->e_mbd.mode_info_context->mbmi.second_mv.as_mv.row >> 3) > x->mv_row_max) ||
((x->e_mbd.mode_info_context->mbmi.second_mv.as_mv.col >> 3) < x->mv_col_min) ||
((x->e_mbd.mode_info_context->mbmi.second_mv.as_mv.col >> 3) > x->mv_col_max))
continue;
/* build first and second prediction */
vp8_build_inter16x16_predictors_mby(&x->e_mbd);
vp8_build_inter16x16_predictors_mbuv(&x->e_mbd);
/* do second round and average the results */
x->e_mbd.second_pre.y_buffer = y_buffer[ref2];
x->e_mbd.second_pre.u_buffer = u_buffer[ref2];
x->e_mbd.second_pre.v_buffer = v_buffer[ref2];
vp8_build_2nd_inter16x16_predictors_mb(&x->e_mbd, x->e_mbd.predictor,
&x->e_mbd.predictor[256],
&x->e_mbd.predictor[320], 16, 8);
/* Y cost and distortion */
#if CONFIG_T8X8
if(cpi->common.txfm_mode == ALLOW_8X8)
macro_block_yrd_8x8(x, &rate_y, &distortion,
IF_RTCD(&cpi->rtcd));
else
#endif
macro_block_yrd(x, &rate_y, &distortion,
IF_RTCD(&cpi->rtcd.encodemb));
rate2 += rate_y;
distortion2 += distortion;
/* UV cost and distortion */
rd_inter16x16_uv(cpi, x, &rate_uv, &distortion_uv, cpi->common.full_pixel);
rate2 += rate_uv;
distortion2 += distortion_uv;
/* don't bother w/ skip, we would never have come here if skip were enabled */
x->e_mbd.mode_info_context->mbmi.mode = this_mode;
/* We don't include the cost of the second reference here, because there are only
* three options: Last/Golden, ARF/Last or Golden/ARF, or in other words if you
* present them in that order, the second one is always known if the first is known */
dualmode_cost =
vp8_cost_bit( get_pred_prob( cm, xd, PRED_DUAL ), 1 );
}
// Where skip is allowable add in the default per mb cost for the no skip case.
// where we then decide to skip we have to delete this and replace it with the
// cost of signallying a skip
if (cpi->common.mb_no_coeff_skip)
{
int prob_skip_cost = vp8_cost_bit(cpi->prob_skip_false, 0);
other_cost += prob_skip_cost;
rate2 += prob_skip_cost;
}
if (cpi->common.dual_pred_mode == HYBRID_PREDICTION)
{
rate2 += dualmode_cost;
}
// Estimate the reference frame signaling cost and add it
// to the rolling cost variable.
rate2 += ref_costs[x->e_mbd.mode_info_context->mbmi.ref_frame];
if (!disable_skip)
{
// Test for the condition where skip block will be activated because there are no non zero coefficients and make any necessary adjustment for rate
if (cpi->common.mb_no_coeff_skip)
{
int tteob;
tteob = 0;
for (i = 0; i <= 24; i++)
{
tteob += x->e_mbd.block[i].eob;
}
if (tteob == 0)
{
rate2 -= (rate_y + rate_uv);
//for best_yrd calculation
rate_uv = 0;
// Back out no skip flag costing and add in skip flag costing
if (cpi->prob_skip_false)
{
int prob_skip_cost;
prob_skip_cost = vp8_cost_bit(cpi->prob_skip_false, 1);
prob_skip_cost -= vp8_cost_bit(cpi->prob_skip_false, 0);
rate2 += prob_skip_cost;
other_cost += prob_skip_cost;
}
}
}
// Calculate the final RD estimate for this mode
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
}
// Experimental debug code.
//all_rds[mode_index] = this_rd;
//all_rates[mode_index] = rate2;
//all_dist[mode_index] = distortion2;
// Keep record of best intra distortion
if ((x->e_mbd.mode_info_context->mbmi.ref_frame == INTRA_FRAME) &&
(this_rd < best_intra_rd) )
{
best_intra_rd = this_rd;
*returnintra = distortion2 ;
}
if (!disable_skip &&
(this_mode == SPLITMV || x->e_mbd.mode_info_context->mbmi.ref_frame == INTRA_FRAME))
{
if (this_rd < best_dual_rd)
best_dual_rd = this_rd;
if (this_rd < best_single_rd)
best_single_rd = this_rd;
if (this_rd < best_hybrid_rd)
best_hybrid_rd = this_rd;
}
// Did this mode help.. i.i is it the new best mode
if (this_rd < best_rd || x->skip)
{
if (!mode_excluded)
{
// Note index of best mode so far
best_mode_index = mode_index;
if (this_mode <= B_PRED)
{
x->e_mbd.mode_info_context->mbmi.uv_mode = uv_intra_mode;
/* required for left and above block mv */
x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
}
other_cost += ref_costs[x->e_mbd.mode_info_context->mbmi.ref_frame];
/* Calculate the final y RD estimate for this mode */
best_yrd = RDCOST(x->rdmult, x->rddiv, (rate2-rate_uv-other_cost),
(distortion2-distortion_uv));
*returnrate = rate2;
*returndistortion = distortion2;
best_rd = this_rd;
vpx_memcpy(&best_mbmode, &x->e_mbd.mode_info_context->mbmi, sizeof(MB_MODE_INFO));
vpx_memcpy(&best_partition, x->partition_info, sizeof(PARTITION_INFO));
if ((this_mode == B_PRED)
||(this_mode == I8X8_PRED)
|| (this_mode == SPLITMV))
for (i = 0; i < 16; i++)
{
best_bmodes[i] = x->e_mbd.block[i].bmi;
}
}
// Testing this mode gave rise to an improvement in best error score. Lower threshold a bit for next time
cpi->rd_thresh_mult[mode_index] = (cpi->rd_thresh_mult[mode_index] >= (MIN_THRESHMULT + 2)) ? cpi->rd_thresh_mult[mode_index] - 2 : MIN_THRESHMULT;
cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
}
// If the mode did not help improve the best error case then raise the threshold for testing that mode next time around.
else
{
cpi->rd_thresh_mult[mode_index] += 4;
if (cpi->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
cpi->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
}
/* keep record of best dual/single-only prediction */
if (!disable_skip &&
x->e_mbd.mode_info_context->mbmi.ref_frame != INTRA_FRAME &&
this_mode != SPLITMV)
{
int single_rd, hybrid_rd, single_rate, hybrid_rate;
if (cpi->common.dual_pred_mode == HYBRID_PREDICTION)
{
single_rate = rate2 - dualmode_cost;
hybrid_rate = rate2;
}
else
{
single_rate = rate2;
hybrid_rate = rate2 + dualmode_cost;
}
single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2);
hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2);
if (x->e_mbd.mode_info_context->mbmi.second_ref_frame == INTRA_FRAME &&
single_rd < best_single_rd)
{
best_single_rd = single_rd;
if (0) printf("single rd [DMC: %d]: %d\n", dualmode_cost, single_rd);
}
else if (x->e_mbd.mode_info_context->mbmi.second_ref_frame != INTRA_FRAME &&
single_rd < best_dual_rd)
{
best_dual_rd = single_rd;
if (0) printf("dual rd [DMC: %d]: %d\n", dualmode_cost, single_rd);
}
if (hybrid_rd < best_hybrid_rd)
{
best_hybrid_rd = hybrid_rd;
if (0) printf("hybrid rd [DMC: %d]: %d\n", best_hybrid_rd, hybrid_rd);
}
}
if (x->skip)
break;
}
// Reduce the activation RD thresholds for the best choice mode
if ((cpi->rd_baseline_thresh[best_mode_index] > 0) && (cpi->rd_baseline_thresh[best_mode_index] < (INT_MAX >> 2)))
{
int best_adjustment = (cpi->rd_thresh_mult[best_mode_index] >> 2);
cpi->rd_thresh_mult[best_mode_index] = (cpi->rd_thresh_mult[best_mode_index] >= (MIN_THRESHMULT + best_adjustment)) ? cpi->rd_thresh_mult[best_mode_index] - best_adjustment : MIN_THRESHMULT;
cpi->rd_threshes[best_mode_index] = (cpi->rd_baseline_thresh[best_mode_index] >> 7) * cpi->rd_thresh_mult[best_mode_index];
// If we chose a split mode then reset the new MV thresholds as well
/*if ( vp8_mode_order[best_mode_index] == SPLITMV )
{
best_adjustment = 4; //(cpi->rd_thresh_mult[THR_NEWMV] >> 4);
cpi->rd_thresh_mult[THR_NEWMV] = (cpi->rd_thresh_mult[THR_NEWMV] >= (MIN_THRESHMULT+best_adjustment)) ? cpi->rd_thresh_mult[THR_NEWMV]-best_adjustment: MIN_THRESHMULT;
cpi->rd_threshes[THR_NEWMV] = (cpi->rd_baseline_thresh[THR_NEWMV] >> 7) * cpi->rd_thresh_mult[THR_NEWMV];
best_adjustment = 4; //(cpi->rd_thresh_mult[THR_NEWG] >> 4);
cpi->rd_thresh_mult[THR_NEWG] = (cpi->rd_thresh_mult[THR_NEWG] >= (MIN_THRESHMULT+best_adjustment)) ? cpi->rd_thresh_mult[THR_NEWG]-best_adjustment: MIN_THRESHMULT;
cpi->rd_threshes[THR_NEWG] = (cpi->rd_baseline_thresh[THR_NEWG] >> 7) * cpi->rd_thresh_mult[THR_NEWG];
best_adjustment = 4; //(cpi->rd_thresh_mult[THR_NEWA] >> 4);
cpi->rd_thresh_mult[THR_NEWA] = (cpi->rd_thresh_mult[THR_NEWA] >= (MIN_THRESHMULT+best_adjustment)) ? cpi->rd_thresh_mult[THR_NEWA]-best_adjustment: MIN_THRESHMULT;
cpi->rd_threshes[THR_NEWA] = (cpi->rd_baseline_thresh[THR_NEWA] >> 7) * cpi->rd_thresh_mult[THR_NEWA];
}*/
}
// Note how often each mode chosen as best
cpi->mode_chosen_counts[best_mode_index] ++;
// This code force Altref,0,0 and skip for the frame that overlays a
// an alrtef unless Altref is filtered. However, this is unsafe if
// segment level coding of ref frame or mode is enabled for this
// segment.
if (!segfeature_active( xd, segment_id, SEG_LVL_REF_FRAME ) &&
!segfeature_active( xd, segment_id, SEG_LVL_MODE ) &&
cpi->is_src_frame_alt_ref &&
(cpi->oxcf.arnr_max_frames == 0) &&
(best_mbmode.mode != ZEROMV || best_mbmode.ref_frame != ALTREF_FRAME))
{
x->e_mbd.mode_info_context->mbmi.mode = ZEROMV;
x->e_mbd.mode_info_context->mbmi.ref_frame = ALTREF_FRAME;
x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
x->e_mbd.mode_info_context->mbmi.mb_skip_coeff =
(cpi->common.mb_no_coeff_skip) ? 1 : 0;
x->e_mbd.mode_info_context->mbmi.partitioning = 0;
*best_single_rd_diff = *best_dual_rd_diff = *best_hybrid_rd_diff = 0;
return;
}
// macroblock modes
vpx_memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode, sizeof(MB_MODE_INFO));
if (best_mbmode.mode == B_PRED)
{
for (i = 0; i < 16; i++)
{
xd->mode_info_context->bmi[i].as_mode = best_bmodes[i].as_mode;
xd->block[i].bmi.as_mode = xd->mode_info_context->bmi[i].as_mode;
}
}
if (best_mbmode.mode == I8X8_PRED)
{
set_i8x8_block_modes(x, mode8x8);
}
if (best_mbmode.mode == SPLITMV)
{
for (i = 0; i < 16; i++)
xd->mode_info_context->bmi[i].mv.as_int = best_bmodes[i].mv.as_int;
vpx_memcpy(x->partition_info, &best_partition, sizeof(PARTITION_INFO));
x->e_mbd.mode_info_context->mbmi.mv.as_int =
x->partition_info->bmi[15].mv.as_int;
}
rd_update_mvcount(cpi, x, &frame_best_ref_mv[xd->mode_info_context->mbmi.ref_frame]);
if (best_single_rd == INT_MAX)
*best_single_rd_diff = INT_MIN;
else
*best_single_rd_diff = best_rd - best_single_rd;
if (best_dual_rd == INT_MAX)
*best_dual_rd_diff = INT_MIN;
else
*best_dual_rd_diff = best_rd - best_dual_rd;
if (best_hybrid_rd == INT_MAX)
*best_hybrid_rd_diff = INT_MIN;
else
*best_hybrid_rd_diff = best_rd - best_hybrid_rd;
}
void vp8_rd_pick_intra_mode(VP8_COMP *cpi, MACROBLOCK *x, int *rate_)
{
#if CONFIG_T8X8
MACROBLOCKD *xd = &x->e_mbd;
#endif
int error4x4, error16x16;
int rate4x4, rate16x16 = 0, rateuv;
int dist4x4, dist16x16, distuv;
int rate;
int rate4x4_tokenonly = 0;
int rate16x16_tokenonly = 0;
int rateuv_tokenonly = 0;
int error8x8, rate8x8_tokenonly=0;
int rate8x8, dist8x8;
int mode16x16;
int mode8x8[4];
x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
rd_pick_intra_mbuv_mode(cpi, x, &rateuv, &rateuv_tokenonly, &distuv);
rate = rateuv;
error16x16 = rd_pick_intra16x16mby_mode(cpi, x,
&rate16x16, &rate16x16_tokenonly,
&dist16x16);
mode16x16 = x->e_mbd.mode_info_context->mbmi.mode;
error8x8 = rd_pick_intra8x8mby_modes(cpi, x,
&rate8x8, &rate8x8_tokenonly,
&dist8x8, error16x16);
mode8x8[0]= x->e_mbd.mode_info_context->bmi[0].as_mode;
mode8x8[1]= x->e_mbd.mode_info_context->bmi[2].as_mode;
mode8x8[2]= x->e_mbd.mode_info_context->bmi[8].as_mode;
mode8x8[3]= x->e_mbd.mode_info_context->bmi[10].as_mode;
error4x4 = rd_pick_intra4x4mby_modes(cpi, x,
&rate4x4, &rate4x4_tokenonly,
&dist4x4, error16x16);
if(error8x8> error16x16)
{
if (error4x4 < error16x16)
{
x->e_mbd.mode_info_context->mbmi.mode = B_PRED;
rate += rate4x4;
}
else
{
x->e_mbd.mode_info_context->mbmi.mode = mode16x16;
rate += rate16x16;
}
}
else
{
if (error4x4 < error8x8)
{
x->e_mbd.mode_info_context->mbmi.mode = B_PRED;
rate += rate4x4;
}
else
{
x->e_mbd.mode_info_context->mbmi.mode = I8X8_PRED;
set_i8x8_block_modes(x, mode8x8);
rate += rate8x8;
}
}
*rate_ = rate;
}
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