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vpx/vp8/encoder/pickinter.c
Alpha Lam 0e05f2c6c9 Skip computation of distortion in vp8_pick_inter_mode if active_map is used 
If a block is marked to be inactive then set distortion to 0.

Change-Id: Ib415f19642a2ff7b5cf5cfaedd60ebbd79732272
2011-08-31 14:06:55 +01:00

938 lines
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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 <limits.h>
#include "vpx_ports/config.h"
#include "onyx_int.h"
#include "modecosts.h"
#include "encodeintra.h"
#include "vp8/common/entropymode.h"
#include "pickinter.h"
#include "vp8/common/findnearmv.h"
#include "encodemb.h"
#include "vp8/common/reconinter.h"
#include "vp8/common/reconintra.h"
#include "vp8/common/reconintra4x4.h"
#include "vp8/common/g_common.h"
#include "variance.h"
#include "mcomp.h"
#include "rdopt.h"
#include "vpx_mem/vpx_mem.h"
#if CONFIG_RUNTIME_CPU_DETECT
#define IF_RTCD(x) (x)
#else
#define IF_RTCD(x) NULL
#endif
extern int VP8_UVSSE(MACROBLOCK *x, const vp8_variance_rtcd_vtable_t *rtcd);
#ifdef SPEEDSTATS
extern unsigned int cnt_pm;
#endif
extern const MV_REFERENCE_FRAME vp8_ref_frame_order[MAX_MODES];
extern const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES];
extern unsigned int (*vp8_get4x4sse_cs)(unsigned char *src_ptr, int source_stride, unsigned char *ref_ptr, int recon_stride);
extern int vp8_cost_mv_ref(MB_PREDICTION_MODE m, const int near_mv_ref_ct[4]);
int vp8_skip_fractional_mv_step(MACROBLOCK *mb, BLOCK *b, BLOCKD *d,
int_mv *bestmv, int_mv *ref_mv,
int error_per_bit,
const vp8_variance_fn_ptr_t *vfp,
int *mvcost[2], int *distortion,
unsigned int *sse)
{
(void) b;
(void) d;
(void) ref_mv;
(void) error_per_bit;
(void) vfp;
(void) mvcost;
(void) distortion;
(void) sse;
bestmv->as_mv.row <<= 3;
bestmv->as_mv.col <<= 3;
return 0;
}
static int get_inter_mbpred_error(MACROBLOCK *mb,
const vp8_variance_fn_ptr_t *vfp,
unsigned int *sse,
int_mv this_mv)
{
BLOCK *b = &mb->block[0];
BLOCKD *d = &mb->e_mbd.block[0];
unsigned char *what = (*(b->base_src) + b->src);
int what_stride = b->src_stride;
unsigned char *in_what = *(d->base_pre) + d->pre ;
int in_what_stride = d->pre_stride;
int xoffset = this_mv.as_mv.col & 7;
int yoffset = this_mv.as_mv.row & 7;
in_what += (this_mv.as_mv.row >> 3) * d->pre_stride + (this_mv.as_mv.col >> 3);
if (xoffset | yoffset)
{
return vfp->svf(in_what, in_what_stride, xoffset, yoffset, what, what_stride, sse);
}
else
{
return vfp->vf(what, what_stride, in_what, in_what_stride, sse);
}
}
unsigned int vp8_get4x4sse_cs_c
(
const unsigned char *src_ptr,
int source_stride,
const unsigned char *ref_ptr,
int recon_stride
)
{
int distortion = 0;
int r, c;
for (r = 0; r < 4; r++)
{
for (c = 0; c < 4; c++)
{
int diff = src_ptr[c] - ref_ptr[c];
distortion += diff * diff;
}
src_ptr += source_stride;
ref_ptr += recon_stride;
}
return distortion;
}
static int get_prediction_error(BLOCK *be, BLOCKD *b, const vp8_variance_rtcd_vtable_t *rtcd)
{
unsigned char *sptr;
unsigned char *dptr;
sptr = (*(be->base_src) + be->src);
dptr = b->predictor;
return VARIANCE_INVOKE(rtcd, get4x4sse_cs)(sptr, be->src_stride, dptr, 16);
}
static int pick_intra4x4block(
const VP8_ENCODER_RTCD *rtcd,
MACROBLOCK *x,
int ib,
B_PREDICTION_MODE *best_mode,
unsigned int *mode_costs,
int *bestrate,
int *bestdistortion)
{
BLOCKD *b = &x->e_mbd.block[ib];
BLOCK *be = &x->block[ib];
B_PREDICTION_MODE mode;
int best_rd = INT_MAX; // 1<<30
int rate;
int distortion;
for (mode = B_DC_PRED; mode <= B_HE_PRED /*B_HU_PRED*/; mode++)
{
int this_rd;
rate = mode_costs[mode];
RECON_INVOKE(&rtcd->common->recon, intra4x4_predict)
(b, mode, b->predictor);
distortion = get_prediction_error(be, b, &rtcd->variance);
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (this_rd < best_rd)
{
*bestrate = rate;
*bestdistortion = distortion;
best_rd = this_rd;
*best_mode = mode;
}
}
b->bmi.as_mode = (B_PREDICTION_MODE)(*best_mode);
vp8_encode_intra4x4block(rtcd, x, ib);
return best_rd;
}
static int pick_intra4x4mby_modes
(
const VP8_ENCODER_RTCD *rtcd,
MACROBLOCK *mb,
int *Rate,
int *best_dist
)
{
MACROBLOCKD *const xd = &mb->e_mbd;
int i;
int cost = mb->mbmode_cost [xd->frame_type] [B_PRED];
int error;
int distortion = 0;
unsigned int *bmode_costs;
vp8_intra_prediction_down_copy(xd);
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(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];
}
pick_intra4x4block(rtcd, mb, i, &best_mode, bmode_costs, &r, &d);
cost += r;
distortion += d;
mic->bmi[i].as_mode = best_mode;
// Break out case where we have already exceeded best so far value
// that was passed in
if (distortion > *best_dist)
break;
}
*Rate = cost;
if (i == 16)
{
*best_dist = distortion;
error = RDCOST(mb->rdmult, mb->rddiv, cost, distortion);
}
else
{
*best_dist = INT_MAX;
error = INT_MAX;
}
return error;
}
static void pick_intra_mbuv_mode(MACROBLOCK *mb)
{
MACROBLOCKD *x = &mb->e_mbd;
unsigned char *uabove_row = x->dst.u_buffer - x->dst.uv_stride;
unsigned char *vabove_row = x->dst.v_buffer - x->dst.uv_stride;
unsigned char *usrc_ptr = (mb->block[16].src + *mb->block[16].base_src);
unsigned char *vsrc_ptr = (mb->block[20].src + *mb->block[20].base_src);
int uvsrc_stride = mb->block[16].src_stride;
unsigned char uleft_col[8];
unsigned char vleft_col[8];
unsigned char utop_left = uabove_row[-1];
unsigned char vtop_left = vabove_row[-1];
int i, j;
int expected_udc;
int expected_vdc;
int shift;
int Uaverage = 0;
int Vaverage = 0;
int diff;
int pred_error[4] = {0, 0, 0, 0}, best_error = INT_MAX;
MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
for (i = 0; i < 8; i++)
{
uleft_col[i] = x->dst.u_buffer [i* x->dst.uv_stride -1];
vleft_col[i] = x->dst.v_buffer [i* x->dst.uv_stride -1];
}
if (!x->up_available && !x->left_available)
{
expected_udc = 128;
expected_vdc = 128;
}
else
{
shift = 2;
if (x->up_available)
{
for (i = 0; i < 8; i++)
{
Uaverage += uabove_row[i];
Vaverage += vabove_row[i];
}
shift ++;
}
if (x->left_available)
{
for (i = 0; i < 8; i++)
{
Uaverage += uleft_col[i];
Vaverage += vleft_col[i];
}
shift ++;
}
expected_udc = (Uaverage + (1 << (shift - 1))) >> shift;
expected_vdc = (Vaverage + (1 << (shift - 1))) >> shift;
}
for (i = 0; i < 8; i++)
{
for (j = 0; j < 8; j++)
{
int predu = uleft_col[i] + uabove_row[j] - utop_left;
int predv = vleft_col[i] + vabove_row[j] - vtop_left;
int u_p, v_p;
u_p = usrc_ptr[j];
v_p = vsrc_ptr[j];
if (predu < 0)
predu = 0;
if (predu > 255)
predu = 255;
if (predv < 0)
predv = 0;
if (predv > 255)
predv = 255;
diff = u_p - expected_udc;
pred_error[DC_PRED] += diff * diff;
diff = v_p - expected_vdc;
pred_error[DC_PRED] += diff * diff;
diff = u_p - uabove_row[j];
pred_error[V_PRED] += diff * diff;
diff = v_p - vabove_row[j];
pred_error[V_PRED] += diff * diff;
diff = u_p - uleft_col[i];
pred_error[H_PRED] += diff * diff;
diff = v_p - vleft_col[i];
pred_error[H_PRED] += diff * diff;
diff = u_p - predu;
pred_error[TM_PRED] += diff * diff;
diff = v_p - predv;
pred_error[TM_PRED] += diff * diff;
}
usrc_ptr += uvsrc_stride;
vsrc_ptr += uvsrc_stride;
if (i == 3)
{
usrc_ptr = (mb->block[18].src + *mb->block[18].base_src);
vsrc_ptr = (mb->block[22].src + *mb->block[22].base_src);
}
}
for (i = DC_PRED; i <= TM_PRED; i++)
{
if (best_error > pred_error[i])
{
best_error = pred_error[i];
best_mode = (MB_PREDICTION_MODE)i;
}
}
mb->e_mbd.mode_info_context->mbmi.uv_mode = best_mode;
}
static void update_mvcount(VP8_COMP *cpi, MACROBLOCKD *xd, int_mv *best_ref_mv)
{
/* Split MV modes currently not supported when RD is nopt enabled,
* therefore, only need to modify MVcount in NEWMV mode. */
if (xd->mode_info_context->mbmi.mode == NEWMV)
{
cpi->MVcount[0][mv_max+((xd->mode_info_context->mbmi.mv.as_mv.row -
best_ref_mv->as_mv.row) >> 1)]++;
cpi->MVcount[1][mv_max+((xd->mode_info_context->mbmi.mv.as_mv.col -
best_ref_mv->as_mv.col) >> 1)]++;
}
}
void vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset,
int recon_uvoffset, int *returnrate,
int *returndistortion, int *returnintra)
{
BLOCK *b = &x->block[0];
BLOCKD *d = &x->e_mbd.block[0];
MACROBLOCKD *xd = &x->e_mbd;
MB_MODE_INFO best_mbmode;
int_mv best_ref_mv;
int_mv mode_mv[MB_MODE_COUNT];
MB_PREDICTION_MODE this_mode;
int num00;
int mdcounts[4];
int best_rd = INT_MAX; // 1 << 30;
int best_intra_rd = INT_MAX;
int mode_index;
int rate;
int rate2;
int distortion2;
int bestsme;
//int all_rds[MAX_MODES]; // Experimental debug code.
int best_mode_index = 0;
unsigned int sse = INT_MAX, best_sse = INT_MAX;
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 nearest_mv[4];
int_mv near_mv[4];
int_mv frame_best_ref_mv[4];
int MDCounts[4][4];
unsigned char *y_buffer[4];
unsigned char *u_buffer[4];
unsigned char *v_buffer[4];
int skip_mode[4] = {0, 0, 0, 0};
int have_subp_search = cpi->sf.half_pixel_search; /* In real-time mode, when Speed >= 15, no sub-pixel search. */
vpx_memset(mode_mv, 0, sizeof(mode_mv));
vpx_memset(nearest_mv, 0, sizeof(nearest_mv));
vpx_memset(near_mv, 0, sizeof(near_mv));
vpx_memset(&best_mbmode, 0, sizeof(best_mbmode));
// set up all the refframe dependent pointers.
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, &nearest_mv[LAST_FRAME], &near_mv[LAST_FRAME],
&frame_best_ref_mv[LAST_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;
}
else
skip_mode[LAST_FRAME] = 1;
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, &nearest_mv[GOLDEN_FRAME], &near_mv[GOLDEN_FRAME],
&frame_best_ref_mv[GOLDEN_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;
}
else
skip_mode[GOLDEN_FRAME] = 1;
if (cpi->ref_frame_flags & VP8_ALT_FLAG && cpi->source_alt_ref_active)
{
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, &nearest_mv[ALTREF_FRAME], &near_mv[ALTREF_FRAME],
&frame_best_ref_mv[ALTREF_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;
}
else
skip_mode[ALTREF_FRAME] = 1;
cpi->mbs_tested_so_far++; // Count of the number of MBs tested so far this frame
*returnintra = INT_MAX;
x->skip = 0;
x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
// if we encode a new mv this is important
// find the best new motion vector
for (mode_index = 0; mode_index < MAX_MODES; mode_index++)
{
int frame_cost;
int this_rd = INT_MAX;
if (best_rd <= cpi->rd_threshes[mode_index])
continue;
x->e_mbd.mode_info_context->mbmi.ref_frame = vp8_ref_frame_order[mode_index];
if (skip_mode[x->e_mbd.mode_info_context->mbmi.ref_frame])
continue;
// Check to see if the testing frequency for this mode is at its max
// If so then prevent it from being tested and increase the threshold for its testing
if (cpi->mode_test_hit_counts[mode_index] && (cpi->mode_check_freq[mode_index] > 1))
{
//if ( (cpi->mbs_tested_so_far / cpi->mode_test_hit_counts[mode_index]) <= cpi->mode_check_freq[mode_index] )
if (cpi->mbs_tested_so_far <= (cpi->mode_check_freq[mode_index] * cpi->mode_test_hit_counts[mode_index]))
{
// Increase the threshold for coding this mode to make it less likely to be chosen
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];
continue;
}
}
// We have now reached the point where we are going to test the current mode so increment the counter for the number of times it has been tested
cpi->mode_test_hit_counts[mode_index] ++;
rate2 = 0;
distortion2 = 0;
this_mode = vp8_mode_order[mode_index];
// Experimental debug code.
//all_rds[mode_index] = -1;
x->e_mbd.mode_info_context->mbmi.mode = this_mode;
x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
// Work out the cost assosciated with selecting the reference frame
frame_cost =
x->e_mbd.ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame];
rate2 += frame_cost;
// 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] = nearest_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
mode_mv[NEARMV] = 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];
memcpy(mdcounts, MDCounts[x->e_mbd.mode_info_context->mbmi.ref_frame], sizeof(mdcounts));
}
// 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;
}
switch (this_mode)
{
case B_PRED:
// Pass best so far to pick_intra4x4mby_modes to use as breakout
distortion2 = best_sse;
pick_intra4x4mby_modes(IF_RTCD(&cpi->rtcd), x, &rate, &distortion2);
if (distortion2 == INT_MAX)
{
this_rd = INT_MAX;
}
else
{
rate2 += rate;
distortion2 = VARIANCE_INVOKE
(&cpi->rtcd.variance, var16x16)(
*(b->base_src), b->src_stride,
x->e_mbd.predictor, 16, &sse);
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
if (this_rd < best_intra_rd)
{
best_intra_rd = this_rd;
*returnintra = distortion2;
}
}
break;
case SPLITMV:
// Split MV modes currently not supported when RD is nopt enabled.
break;
case DC_PRED:
case V_PRED:
case H_PRED:
case TM_PRED:
RECON_INVOKE(&cpi->common.rtcd.recon, build_intra_predictors_mby)
(&x->e_mbd);
distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, var16x16)
(*(b->base_src), b->src_stride,
x->e_mbd.predictor, 16, &sse);
rate2 += x->mbmode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.mode];
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
if (this_rd < best_intra_rd)
{
best_intra_rd = this_rd;
*returnintra = distortion2;
}
break;
case NEWMV:
{
int thissme;
int step_param;
int further_steps;
int n = 0;
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;
int speed_adjust = (cpi->Speed > 5) ? ((cpi->Speed >= 8)? 3 : 2) : 1;
// Further step/diamond searches as necessary
step_param = cpi->sf.first_step + speed_adjust;
if(cpi->sf.improved_mv_pred)
{
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]);
sr += speed_adjust;
//adjust search range according to sr from mv prediction
if(sr > step_param)
step_param = sr;
mvp_full.as_mv.col = mvp.as_mv.col>>3;
mvp_full.as_mv.row = mvp.as_mv.row>>3;
}else
{
mvp.as_int = best_ref_mv.as_int;
mvp_full.as_mv.col = best_ref_mv.as_mv.col>>3;
mvp_full.as_mv.row = best_ref_mv.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;
further_steps = (cpi->Speed >= 8)? 0: (cpi->sf.max_step_search_steps - 1 - step_param);
if (cpi->sf.search_method == HEX)
{
bestsme = vp8_hex_search(x, b, d, &mvp_full, &d->bmi.mv, step_param,
sadpb, &cpi->fn_ptr[BLOCK_16X16],
x->mvsadcost, x->mvcost, &best_ref_mv);
mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
}
else
{
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;
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);
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)
cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv, &best_ref_mv,
x->errorperbit,
&cpi->fn_ptr[BLOCK_16X16],
cpi->mb.mvcost,
&distortion2,&sse);
mode_mv[NEWMV].as_int = d->bmi.mv.as_int;
// mv cost;
rate2 += vp8_mv_bit_cost(&mode_mv[NEWMV], &best_ref_mv, cpi->mb.mvcost, 128);
}
case NEARESTMV:
case NEARMV:
if (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;
rate2 += vp8_cost_mv_ref(this_mode, mdcounts);
x->e_mbd.mode_info_context->mbmi.mv.as_int =
mode_mv[this_mode].as_int;
/* Exit early and don't compute the distortion if this macroblock is marked inactive. */
if (cpi->active_map_enabled && x->active_ptr[0] == 0)
{
sse = 0;
distortion2 = 0;
x->skip = 1;
break;
}
if((this_mode != NEWMV) ||
!(have_subp_search) || cpi->common.full_pixel==1)
distortion2 = get_inter_mbpred_error(x,
&cpi->fn_ptr[BLOCK_16X16],
&sse, mode_mv[this_mode]);
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
if (sse < x->encode_breakout)
{
// Check u and v to make sure skip is ok
int sse2 = 0;
sse2 = VP8_UVSSE(x, IF_RTCD(&cpi->rtcd.variance));
if (sse2 * 2 < x->encode_breakout)
x->skip = 1;
else
x->skip = 0;
}
break;
default:
break;
}
// Experimental debug code.
//all_rds[mode_index] = this_rd;
if (this_rd < best_rd || x->skip)
{
// Note index of best mode
best_mode_index = mode_index;
*returnrate = rate2;
*returndistortion = distortion2;
best_sse = sse;
best_rd = this_rd;
vpx_memcpy(&best_mbmode, &x->e_mbd.mode_info_context->mbmi, sizeof(MB_MODE_INFO));
// 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];
}
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] >> 3);
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];
}
{
int this_rdbin = (*returndistortion >> 7);
if (this_rdbin >= 1024)
{
this_rdbin = 1023;
}
cpi->error_bins[this_rdbin] ++;
}
if (cpi->is_src_frame_alt_ref &&
(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;
return;
}
/* set to the best mb mode */
vpx_memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode, sizeof(MB_MODE_INFO));
if (best_mbmode.mode <= B_PRED)
{
/* set mode_info_context->mbmi.uv_mode */
pick_intra_mbuv_mode(x);
}
update_mvcount(cpi, &x->e_mbd, &frame_best_ref_mv[xd->mode_info_context->mbmi.ref_frame]);
}
void vp8_pick_intra_mode(VP8_COMP *cpi, MACROBLOCK *x, int *rate_)
{
int error4x4, error16x16 = INT_MAX;
int rate, best_rate = 0, distortion, best_sse;
MB_PREDICTION_MODE mode, best_mode = DC_PRED;
int this_rd;
unsigned int sse;
BLOCK *b = &x->block[0];
x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
pick_intra_mbuv_mode(x);
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);
distortion = VARIANCE_INVOKE(&cpi->rtcd.variance, var16x16)
(*(b->base_src), b->src_stride, x->e_mbd.predictor, 16, &sse);
rate = x->mbmode_cost[x->e_mbd.frame_type][mode];
this_rd = RDCOST(x->rdmult, x->rddiv, rate, distortion);
if (error16x16 > this_rd)
{
error16x16 = this_rd;
best_mode = mode;
best_sse = sse;
best_rate = rate;
}
}
x->e_mbd.mode_info_context->mbmi.mode = best_mode;
error4x4 = pick_intra4x4mby_modes(IF_RTCD(&cpi->rtcd), x, &rate,
&best_sse);
if (error4x4 < error16x16)
{
x->e_mbd.mode_info_context->mbmi.mode = B_PRED;
best_rate = rate;
}
*rate_ = best_rate;
}
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