2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
13 #include "vpx_ports/config.h"
15 #include "modecosts.h"
16 #include "encodeintra.h"
17 #include "entropymode.h"
18 #include "pickinter.h"
19 #include "findnearmv.h"
21 #include "reconinter.h"
22 #include "reconintra.h"
23 #include "reconintra4x4.h"
28 #include "vpx_mem/vpx_mem.h"
30 #if CONFIG_RUNTIME_CPU_DETECT
31 #define IF_RTCD(x) (x)
33 #define IF_RTCD(x) NULL
36 extern int VP8_UVSSE(MACROBLOCK *x, const vp8_variance_rtcd_vtable_t *rtcd);
39 extern unsigned int cnt_pm;
42 extern const MV_REFERENCE_FRAME vp8_ref_frame_order[MAX_MODES];
43 extern const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES];
46 extern unsigned int (*vp8_get16x16pred_error)(unsigned char *src_ptr, int src_stride, unsigned char *ref_ptr, int ref_stride);
47 extern unsigned int (*vp8_get4x4sse_cs)(unsigned char *src_ptr, int source_stride, unsigned char *ref_ptr, int recon_stride);
48 extern int vp8_rd_pick_best_mbsegmentation(VP8_COMP *cpi, MACROBLOCK *x, MV *best_ref_mv, int best_rd, int *, int *, int *, int, int *mvcost[2], int, int fullpixel);
49 extern int vp8_cost_mv_ref(MB_PREDICTION_MODE m, const int near_mv_ref_ct[4]);
50 extern void vp8_set_mbmode_and_mvs(MACROBLOCK *x, MB_PREDICTION_MODE mb, MV *mv);
53 int vp8_skip_fractional_mv_step(MACROBLOCK *mb, BLOCK *b, BLOCKD *d, MV *bestmv, MV *ref_mv, int error_per_bit, vp8_subpixvariance_fn_t svf, vp8_variance_fn_t vf, int *mvcost[2])
68 static int get_inter_mbpred_error(MACROBLOCK *mb, vp8_subpixvariance_fn_t svf, vp8_variance_fn_t vf, unsigned int *sse)
71 BLOCK *b = &mb->block[0];
72 BLOCKD *d = &mb->e_mbd.block[0];
73 unsigned char *what = (*(b->base_src) + b->src);
74 int what_stride = b->src_stride;
75 unsigned char *in_what = *(d->base_pre) + d->pre ;
76 int in_what_stride = d->pre_stride;
77 int xoffset = d->bmi.mv.as_mv.col & 7;
78 int yoffset = d->bmi.mv.as_mv.row & 7;
80 in_what += (d->bmi.mv.as_mv.row >> 3) * d->pre_stride + (d->bmi.mv.as_mv.col >> 3);
82 if (xoffset | yoffset)
84 return svf(in_what, in_what_stride, xoffset, yoffset, what, what_stride, sse);
88 return vf(what, what_stride, in_what, in_what_stride, sse);
93 unsigned int vp8_get16x16pred_error_c
95 const unsigned char *src_ptr,
97 const unsigned char *ref_ptr,
102 unsigned pred_error = 0;
106 for (i = 0; i < 16; i++)
110 for (j = 0; j < 16; j++)
112 diff = src_ptr[j] - ref_ptr[j];
114 pred_error += diff * diff;
117 src_ptr += src_stride;
118 ref_ptr += ref_stride;
121 pred_error -= sum * sum / 256;
126 unsigned int vp8_get4x4sse_cs_c
128 const unsigned char *src_ptr,
130 const unsigned char *ref_ptr,
138 for (r = 0; r < 4; r++)
140 for (c = 0; c < 4; c++)
142 int diff = src_ptr[c] - ref_ptr[c];
143 distortion += diff * diff;
146 src_ptr += source_stride;
147 ref_ptr += recon_stride;
153 static int get_prediction_error(BLOCK *be, BLOCKD *b, const vp8_variance_rtcd_vtable_t *rtcd)
157 sptr = (*(be->base_src) + be->src);
160 return VARIANCE_INVOKE(rtcd, get4x4sse_cs)(sptr, be->src_stride, dptr, 16, 0x7fffffff);
164 static int pick_intra4x4block(
165 const VP8_ENCODER_RTCD *rtcd,
169 B_PREDICTION_MODE *best_mode,
170 B_PREDICTION_MODE above,
171 B_PREDICTION_MODE left,
178 B_PREDICTION_MODE mode;
179 int best_rd = INT_MAX; // 1<<30
182 unsigned int *mode_costs;
186 if (x->e_mbd.frame_type == KEY_FRAME)
188 mode_costs = x->bmode_costs[above][left];
192 mode_costs = x->inter_bmode_costs;
195 for (mode = B_DC_PRED; mode <= B_HE_PRED /*B_HU_PRED*/; mode++)
199 rate = mode_costs[mode];
200 vp8_predict_intra4x4(b, mode, b->predictor);
201 distortion = get_prediction_error(be, b, &rtcd->variance);
202 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate, distortion);
204 if (this_rd < best_rd)
207 *bestdistortion = distortion;
213 b->bmi.mode = (B_PREDICTION_MODE)(*best_mode);
214 vp8_encode_intra4x4block(rtcd, x, be, b, b->bmi.mode);
219 int vp8_pick_intra4x4mby_modes(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *mb, int *Rate, int *best_dist)
221 MACROBLOCKD *const xd = &mb->e_mbd;
223 int cost = mb->mbmode_cost [xd->frame_type] [B_PRED];
224 int error = RD_ESTIMATE(mb->rdmult, mb->rddiv, cost, 0); // Rd estimate for the cost of the block prediction mode
226 ENTROPY_CONTEXT_PLANES t_above, t_left;
230 vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
231 vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
233 ta = (ENTROPY_CONTEXT *)&t_above;
234 tl = (ENTROPY_CONTEXT *)&t_left;
236 vp8_intra_prediction_down_copy(xd);
238 for (i = 0; i < 16; i++)
240 MODE_INFO *const mic = xd->mode_info_context;
241 const int mis = xd->mode_info_stride;
242 const B_PREDICTION_MODE A = vp8_above_bmi(mic, i, mis)->mode;
243 const B_PREDICTION_MODE L = vp8_left_bmi(mic, i)->mode;
244 B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
245 int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(d);
247 error += pick_intra4x4block(rtcd,
248 mb, mb->block + i, xd->block + i, &best_mode, A, L,
249 ta + vp8_block2above[i],
250 tl + vp8_block2left[i], &r, &d);
255 mic->bmi[i].mode = xd->block[i].bmi.mode = best_mode;
257 // Break out case where we have already exceeded best so far value that was bassed in
258 if (distortion > *best_dist)
262 for (i = 0; i < 16; i++)
263 xd->block[i].bmi.mv.as_int = 0;
268 *best_dist = distortion;
270 *best_dist = INT_MAX;
276 int vp8_pick_intra_mbuv_mode(MACROBLOCK *mb)
279 MACROBLOCKD *x = &mb->e_mbd;
280 unsigned char *uabove_row = x->dst.u_buffer - x->dst.uv_stride;
281 unsigned char *vabove_row = x->dst.v_buffer - x->dst.uv_stride;
282 unsigned char *usrc_ptr = (mb->block[16].src + *mb->block[16].base_src);
283 unsigned char *vsrc_ptr = (mb->block[20].src + *mb->block[20].base_src);
284 int uvsrc_stride = mb->block[16].src_stride;
285 unsigned char uleft_col[8];
286 unsigned char vleft_col[8];
287 unsigned char utop_left = uabove_row[-1];
288 unsigned char vtop_left = vabove_row[-1];
296 int pred_error[4] = {0, 0, 0, 0}, best_error = INT_MAX;
297 MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
300 for (i = 0; i < 8; i++)
302 uleft_col[i] = x->dst.u_buffer [i* x->dst.uv_stride -1];
303 vleft_col[i] = x->dst.v_buffer [i* x->dst.uv_stride -1];
306 if (!x->up_available && !x->left_available)
318 for (i = 0; i < 8; i++)
320 Uaverage += uabove_row[i];
321 Vaverage += vabove_row[i];
328 if (x->left_available)
330 for (i = 0; i < 8; i++)
332 Uaverage += uleft_col[i];
333 Vaverage += vleft_col[i];
340 expected_udc = (Uaverage + (1 << (shift - 1))) >> shift;
341 expected_vdc = (Vaverage + (1 << (shift - 1))) >> shift;
345 for (i = 0; i < 8; i++)
347 for (j = 0; j < 8; j++)
350 int predu = uleft_col[i] + uabove_row[j] - utop_left;
351 int predv = vleft_col[i] + vabove_row[j] - vtop_left;
370 diff = u_p - expected_udc;
371 pred_error[DC_PRED] += diff * diff;
372 diff = v_p - expected_vdc;
373 pred_error[DC_PRED] += diff * diff;
376 diff = u_p - uabove_row[j];
377 pred_error[V_PRED] += diff * diff;
378 diff = v_p - vabove_row[j];
379 pred_error[V_PRED] += diff * diff;
382 diff = u_p - uleft_col[i];
383 pred_error[H_PRED] += diff * diff;
384 diff = v_p - vleft_col[i];
385 pred_error[H_PRED] += diff * diff;
389 pred_error[TM_PRED] += diff * diff;
391 pred_error[TM_PRED] += diff * diff;
396 usrc_ptr += uvsrc_stride;
397 vsrc_ptr += uvsrc_stride;
401 usrc_ptr = (mb->block[18].src + *mb->block[18].base_src);
402 vsrc_ptr = (mb->block[22].src + *mb->block[22].base_src);
410 for (i = DC_PRED; i <= TM_PRED; i++)
412 if (best_error > pred_error[i])
414 best_error = pred_error[i];
415 best_mode = (MB_PREDICTION_MODE)i;
420 mb->e_mbd.mode_info_context->mbmi.uv_mode = best_mode;
426 int vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra)
428 BLOCK *b = &x->block[0];
429 BLOCKD *d = &x->e_mbd.block[0];
430 MACROBLOCKD *xd = &x->e_mbd;
431 B_MODE_INFO best_bmodes[16];
432 MB_MODE_INFO best_mbmode;
433 PARTITION_INFO best_partition;
435 MV mode_mv[MB_MODE_COUNT];
436 MB_PREDICTION_MODE this_mode;
440 int best_rd = INT_MAX; // 1 << 30;
441 int best_intra_rd = INT_MAX;
443 int ref_frame_cost[MAX_REF_FRAMES];
448 //int all_rds[MAX_MODES]; // Experimental debug code.
449 int best_mode_index = 0;
456 unsigned char *y_buffer[4];
457 unsigned char *u_buffer[4];
458 unsigned char *v_buffer[4];
460 int skip_mode[4] = {0, 0, 0, 0};
462 vpx_memset(mode_mv, 0, sizeof(mode_mv));
463 vpx_memset(nearest_mv, 0, sizeof(nearest_mv));
464 vpx_memset(near_mv, 0, sizeof(near_mv));
465 vpx_memset(&best_mbmode, 0, sizeof(best_mbmode));
468 // set up all the refframe dependent pointers.
469 if (cpi->ref_frame_flags & VP8_LAST_FLAG)
471 YV12_BUFFER_CONFIG *lst_yv12 = &cpi->common.yv12_fb[cpi->common.lst_fb_idx];
473 vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context, &nearest_mv[LAST_FRAME], &near_mv[LAST_FRAME],
474 &best_ref_mv[LAST_FRAME], MDCounts[LAST_FRAME], LAST_FRAME, cpi->common.ref_frame_sign_bias);
476 y_buffer[LAST_FRAME] = lst_yv12->y_buffer + recon_yoffset;
477 u_buffer[LAST_FRAME] = lst_yv12->u_buffer + recon_uvoffset;
478 v_buffer[LAST_FRAME] = lst_yv12->v_buffer + recon_uvoffset;
481 skip_mode[LAST_FRAME] = 1;
483 if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
485 YV12_BUFFER_CONFIG *gld_yv12 = &cpi->common.yv12_fb[cpi->common.gld_fb_idx];
487 vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context, &nearest_mv[GOLDEN_FRAME], &near_mv[GOLDEN_FRAME],
488 &best_ref_mv[GOLDEN_FRAME], MDCounts[GOLDEN_FRAME], GOLDEN_FRAME, cpi->common.ref_frame_sign_bias);
490 y_buffer[GOLDEN_FRAME] = gld_yv12->y_buffer + recon_yoffset;
491 u_buffer[GOLDEN_FRAME] = gld_yv12->u_buffer + recon_uvoffset;
492 v_buffer[GOLDEN_FRAME] = gld_yv12->v_buffer + recon_uvoffset;
495 skip_mode[GOLDEN_FRAME] = 1;
497 if (cpi->ref_frame_flags & VP8_ALT_FLAG && cpi->source_alt_ref_active)
499 YV12_BUFFER_CONFIG *alt_yv12 = &cpi->common.yv12_fb[cpi->common.alt_fb_idx];
501 vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context, &nearest_mv[ALTREF_FRAME], &near_mv[ALTREF_FRAME],
502 &best_ref_mv[ALTREF_FRAME], MDCounts[ALTREF_FRAME], ALTREF_FRAME, cpi->common.ref_frame_sign_bias);
504 y_buffer[ALTREF_FRAME] = alt_yv12->y_buffer + recon_yoffset;
505 u_buffer[ALTREF_FRAME] = alt_yv12->u_buffer + recon_uvoffset;
506 v_buffer[ALTREF_FRAME] = alt_yv12->v_buffer + recon_uvoffset;
509 skip_mode[ALTREF_FRAME] = 1;
511 cpi->mbs_tested_so_far++; // Count of the number of MBs tested so far this frame
513 *returnintra = best_intra_rd;
516 ref_frame_cost[INTRA_FRAME] = vp8_cost_zero(cpi->prob_intra_coded);
518 // Special case treatment when GF and ARF are not sensible options for reference
519 if (cpi->ref_frame_flags == VP8_LAST_FLAG)
521 ref_frame_cost[LAST_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
522 + vp8_cost_zero(255);
523 ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
525 + vp8_cost_zero(128);
526 ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
532 ref_frame_cost[LAST_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
533 + vp8_cost_zero(cpi->prob_last_coded);
534 ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
535 + vp8_cost_one(cpi->prob_last_coded)
536 + vp8_cost_zero(cpi->prob_gf_coded);
537 ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
538 + vp8_cost_one(cpi->prob_last_coded)
539 + vp8_cost_one(cpi->prob_gf_coded);
546 x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
548 // if we encode a new mv this is important
549 // find the best new motion vector
550 for (mode_index = 0; mode_index < MAX_MODES; mode_index++)
553 int this_rd = INT_MAX;
555 if (best_rd <= cpi->rd_threshes[mode_index])
558 x->e_mbd.mode_info_context->mbmi.ref_frame = vp8_ref_frame_order[mode_index];
560 if (skip_mode[x->e_mbd.mode_info_context->mbmi.ref_frame])
563 // Check to see if the testing frequency for this mode is at its max
564 // If so then prevent it from being tested and increase the threshold for its testing
565 if (cpi->mode_test_hit_counts[mode_index] && (cpi->mode_check_freq[mode_index] > 1))
567 //if ( (cpi->mbs_tested_so_far / cpi->mode_test_hit_counts[mode_index]) <= cpi->mode_check_freq[mode_index] )
568 if (cpi->mbs_tested_so_far <= (cpi->mode_check_freq[mode_index] * cpi->mode_test_hit_counts[mode_index]))
570 // Increase the threshold for coding this mode to make it less likely to be chosen
571 cpi->rd_thresh_mult[mode_index] += 4;
573 if (cpi->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
574 cpi->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
576 cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
582 // 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
583 cpi->mode_test_hit_counts[mode_index] ++;
588 this_mode = vp8_mode_order[mode_index];
590 // Experimental debug code.
591 //all_rds[mode_index] = -1;
593 x->e_mbd.mode_info_context->mbmi.mode = this_mode;
594 x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
596 // Work out the cost assosciated with selecting the reference frame
597 frame_cost = ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame];
600 // everything but intra
601 if (x->e_mbd.mode_info_context->mbmi.ref_frame)
603 x->e_mbd.pre.y_buffer = y_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
604 x->e_mbd.pre.u_buffer = u_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
605 x->e_mbd.pre.v_buffer = v_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
606 mode_mv[NEARESTMV] = nearest_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
607 mode_mv[NEARMV] = near_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
608 best_ref_mv1 = best_ref_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
609 memcpy(mdcounts, MDCounts[x->e_mbd.mode_info_context->mbmi.ref_frame], sizeof(mdcounts));
612 //Only consider ZEROMV/ALTREF_FRAME for alt ref frame.
613 if (cpi->is_src_frame_alt_ref)
615 if (this_mode != ZEROMV || x->e_mbd.mode_info_context->mbmi.ref_frame != ALTREF_FRAME)
622 distortion2 = *returndistortion; // Best so far passed in as breakout value to vp8_pick_intra4x4mby_modes
623 vp8_pick_intra4x4mby_modes(IF_RTCD(&cpi->rtcd), x, &rate, &distortion2);
625 distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, get16x16prederror)(x->src.y_buffer, x->src.y_stride, x->e_mbd.predictor, 16, 0x7fffffff);
627 if (distortion2 == INT_MAX)
633 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
635 if (this_rd < best_intra_rd)
637 best_intra_rd = this_rd;
638 *returnintra = best_intra_rd ;
646 // Split MV modes currently not supported when RD is nopt enabled.
653 vp8_build_intra_predictors_mby_ptr(&x->e_mbd);
654 distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, get16x16prederror)(x->src.y_buffer, x->src.y_stride, x->e_mbd.predictor, 16, 0x7fffffff);
655 rate2 += x->mbmode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.mode];
656 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
658 if (this_rd < best_intra_rd)
660 best_intra_rd = this_rd;
661 *returnintra = best_intra_rd ;
672 int sadpb = x->sadperbit16;
674 // Further step/diamond searches as necessary
677 step_param = cpi->sf.first_step + ((cpi->Speed > 5) ? 1 : 0);
678 further_steps = (cpi->sf.max_step_search_steps - 1) - step_param;
682 step_param = cpi->sf.first_step + 2;
688 // Initial step Search
689 bestsme = vp8_diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, x->errorperbit, &num00, &cpi->fn_ptr, cpi->mb.mvsadcost, cpi->mb.mvcost);
690 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
691 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
693 // Further step searches
694 while (n < further_steps)
702 thissme = vp8_diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param + n, x->errorperbit, &num00, &cpi->fn_ptr, cpi->mb.mvsadcost, x->mvcost);
704 if (thissme < bestsme)
707 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
708 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
712 d->bmi.mv.as_mv.row = mode_mv[NEWMV].row;
713 d->bmi.mv.as_mv.col = mode_mv[NEWMV].col;
720 if (cpi->sf.search_method == HEX)
722 bestsme = vp8_hex_search(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, sadpb/*x->errorperbit*/, &num00, cpi->fn_ptr.vf, cpi->fn_ptr.sdf, x->mvsadcost, x->mvcost);
723 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
724 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
728 bestsme = cpi->diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, sadpb / 2/*x->errorperbit*/, &num00, &cpi->fn_ptr, x->mvsadcost, x->mvcost); //sadpb < 9
729 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
730 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
732 // Further step/diamond searches as necessary
734 //further_steps = (cpi->sf.max_step_search_steps - 1) - step_param;
739 while (n < further_steps)
747 thissme = cpi->diamond_search_sad(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param + n, sadpb / 4/*x->errorperbit*/, &num00, &cpi->fn_ptr, x->mvsadcost, x->mvcost); //sadpb = 9
749 if (thissme < bestsme)
752 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
753 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
757 d->bmi.mv.as_mv.row = mode_mv[NEWMV].row;
758 d->bmi.mv.as_mv.col = mode_mv[NEWMV].col;
767 if (bestsme < INT_MAX)
768 cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv.as_mv, &best_ref_mv1, x->errorperbit, cpi->fn_ptr.svf, cpi->fn_ptr.vf, cpi->mb.mvcost);
770 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
771 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
774 rate2 += vp8_mv_bit_cost(&mode_mv[NEWMV], &best_ref_mv1, cpi->mb.mvcost, 128);
780 if (mode_mv[this_mode].row == 0 && mode_mv[this_mode].col == 0)
785 // Trap vectors that reach beyond the UMV borders
786 // Note that ALL New MV, Nearest MV Near MV and Zero MV code drops through to this point
787 // because of the lack of break statements in the previous two cases.
788 if (((mode_mv[this_mode].row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].row >> 3) > x->mv_row_max) ||
789 ((mode_mv[this_mode].col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].col >> 3) > x->mv_col_max))
792 rate2 += vp8_cost_mv_ref(this_mode, mdcounts);
793 x->e_mbd.mode_info_context->mbmi.mode = this_mode;
794 x->e_mbd.mode_info_context->mbmi.mv.as_mv = mode_mv[this_mode];
795 x->e_mbd.block[0].bmi.mode = this_mode;
796 x->e_mbd.block[0].bmi.mv.as_int = x->e_mbd.mode_info_context->mbmi.mv.as_int;
798 distortion2 = get_inter_mbpred_error(x, cpi->fn_ptr.svf, cpi->fn_ptr.vf, (unsigned int *)(&sse));
800 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
802 if (cpi->active_map_enabled && x->active_ptr[0] == 0)
806 else if (sse < x->encode_breakout)
808 // Check u and v to make sure skip is ok
811 sse2 = VP8_UVSSE(x, IF_RTCD(&cpi->rtcd.variance));
813 if (sse2 * 2 < x->encode_breakout)
824 // Experimental debug code.
825 //all_rds[mode_index] = this_rd;
827 if (this_rd < best_rd || x->skip)
829 // Note index of best mode
830 best_mode_index = mode_index;
833 *returndistortion = distortion2;
835 vpx_memcpy(&best_mbmode, &x->e_mbd.mode_info_context->mbmi, sizeof(MB_MODE_INFO));
836 vpx_memcpy(&best_partition, x->partition_info, sizeof(PARTITION_INFO));
838 if (this_mode == B_PRED || this_mode == SPLITMV)
839 for (i = 0; i < 16; i++)
841 vpx_memcpy(&best_bmodes[i], &x->e_mbd.block[i].bmi, sizeof(B_MODE_INFO));
845 best_bmodes[0].mv = x->e_mbd.block[0].bmi.mv;
848 // Testing this mode gave rise to an improvement in best error score. Lower threshold a bit for next time
849 cpi->rd_thresh_mult[mode_index] = (cpi->rd_thresh_mult[mode_index] >= (MIN_THRESHMULT + 2)) ? cpi->rd_thresh_mult[mode_index] - 2 : MIN_THRESHMULT;
850 cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
853 // If the mode did not help improve the best error case then raise the threshold for testing that mode next time around.
856 cpi->rd_thresh_mult[mode_index] += 4;
858 if (cpi->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
859 cpi->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
861 cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
868 // Reduce the activation RD thresholds for the best choice mode
869 if ((cpi->rd_baseline_thresh[best_mode_index] > 0) && (cpi->rd_baseline_thresh[best_mode_index] < (INT_MAX >> 2)))
871 int best_adjustment = (cpi->rd_thresh_mult[best_mode_index] >> 3);
873 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;
874 cpi->rd_threshes[best_mode_index] = (cpi->rd_baseline_thresh[best_mode_index] >> 7) * cpi->rd_thresh_mult[best_mode_index];
877 // Keep a record of best mode index for use in next loop
878 cpi->last_best_mode_index = best_mode_index;
880 if (best_mbmode.mode <= B_PRED)
882 x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
883 vp8_pick_intra_mbuv_mode(x);
884 best_mbmode.uv_mode = x->e_mbd.mode_info_context->mbmi.uv_mode;
889 int this_rdbin = (*returndistortion >> 7);
891 if (this_rdbin >= 1024)
896 cpi->error_bins[this_rdbin] ++;
900 if (cpi->is_src_frame_alt_ref && (best_mbmode.mode != ZEROMV || best_mbmode.ref_frame != ALTREF_FRAME))
902 best_mbmode.mode = ZEROMV;
903 best_mbmode.ref_frame = ALTREF_FRAME;
904 best_mbmode.mv.as_int = 0;
905 best_mbmode.uv_mode = 0;
906 best_mbmode.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
907 best_mbmode.partitioning = 0;
908 best_mbmode.dc_diff = 0;
910 vpx_memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode, sizeof(MB_MODE_INFO));
911 vpx_memcpy(x->partition_info, &best_partition, sizeof(PARTITION_INFO));
913 for (i = 0; i < 16; i++)
915 vpx_memset(&x->e_mbd.block[i].bmi, 0, sizeof(B_MODE_INFO));
918 x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
925 vpx_memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode, sizeof(MB_MODE_INFO));
926 vpx_memcpy(x->partition_info, &best_partition, sizeof(PARTITION_INFO));
928 if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED || x->e_mbd.mode_info_context->mbmi.mode == SPLITMV)
929 for (i = 0; i < 16; i++)
931 vpx_memcpy(&x->e_mbd.block[i].bmi, &best_bmodes[i], sizeof(B_MODE_INFO));
936 vp8_set_mbmode_and_mvs(x, x->e_mbd.mode_info_context->mbmi.mode, &best_bmodes[0].mv.as_mv);
939 x->e_mbd.mode_info_context->mbmi.mv.as_mv = x->e_mbd.block[15].bmi.mv.as_mv;