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, const vp8_variance_fn_ptr_t *vfp, int *mvcost[2])
67 static int get_inter_mbpred_error(MACROBLOCK *mb, const vp8_variance_fn_ptr_t *vfp, unsigned int *sse)
70 BLOCK *b = &mb->block[0];
71 BLOCKD *d = &mb->e_mbd.block[0];
72 unsigned char *what = (*(b->base_src) + b->src);
73 int what_stride = b->src_stride;
74 unsigned char *in_what = *(d->base_pre) + d->pre ;
75 int in_what_stride = d->pre_stride;
76 int xoffset = d->bmi.mv.as_mv.col & 7;
77 int yoffset = d->bmi.mv.as_mv.row & 7;
79 in_what += (d->bmi.mv.as_mv.row >> 3) * d->pre_stride + (d->bmi.mv.as_mv.col >> 3);
81 if (xoffset | yoffset)
83 return vfp->svf(in_what, in_what_stride, xoffset, yoffset, what, what_stride, sse);
87 return vfp->vf(what, what_stride, in_what, in_what_stride, sse);
92 unsigned int vp8_get16x16pred_error_c
94 const unsigned char *src_ptr,
96 const unsigned char *ref_ptr,
101 unsigned pred_error = 0;
105 for (i = 0; i < 16; i++)
109 for (j = 0; j < 16; j++)
111 diff = src_ptr[j] - ref_ptr[j];
113 pred_error += diff * diff;
116 src_ptr += src_stride;
117 ref_ptr += ref_stride;
120 pred_error -= sum * sum / 256;
125 unsigned int vp8_get4x4sse_cs_c
127 const unsigned char *src_ptr,
129 const unsigned char *ref_ptr,
137 for (r = 0; r < 4; r++)
139 for (c = 0; c < 4; c++)
141 int diff = src_ptr[c] - ref_ptr[c];
142 distortion += diff * diff;
145 src_ptr += source_stride;
146 ref_ptr += recon_stride;
152 static int get_prediction_error(BLOCK *be, BLOCKD *b, const vp8_variance_rtcd_vtable_t *rtcd)
156 sptr = (*(be->base_src) + be->src);
159 return VARIANCE_INVOKE(rtcd, get4x4sse_cs)(sptr, be->src_stride, dptr, 16, 0x7fffffff);
163 static int pick_intra4x4block(
164 const VP8_ENCODER_RTCD *rtcd,
168 B_PREDICTION_MODE *best_mode,
169 B_PREDICTION_MODE above,
170 B_PREDICTION_MODE left,
177 B_PREDICTION_MODE mode;
178 int best_rd = INT_MAX; // 1<<30
181 unsigned int *mode_costs;
185 if (x->e_mbd.frame_type == KEY_FRAME)
187 mode_costs = x->bmode_costs[above][left];
191 mode_costs = x->inter_bmode_costs;
194 for (mode = B_DC_PRED; mode <= B_HE_PRED /*B_HU_PRED*/; mode++)
198 rate = mode_costs[mode];
199 vp8_predict_intra4x4(b, mode, b->predictor);
200 distortion = get_prediction_error(be, b, &rtcd->variance);
201 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate, distortion);
203 if (this_rd < best_rd)
206 *bestdistortion = distortion;
212 b->bmi.mode = (B_PREDICTION_MODE)(*best_mode);
213 vp8_encode_intra4x4block(rtcd, x, be, b, b->bmi.mode);
218 int vp8_pick_intra4x4mby_modes(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *mb, int *Rate, int *best_dist)
220 MACROBLOCKD *const xd = &mb->e_mbd;
222 int cost = mb->mbmode_cost [xd->frame_type] [B_PRED];
223 int error = RD_ESTIMATE(mb->rdmult, mb->rddiv, cost, 0); // Rd estimate for the cost of the block prediction mode
225 ENTROPY_CONTEXT_PLANES t_above, t_left;
229 vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
230 vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
232 ta = (ENTROPY_CONTEXT *)&t_above;
233 tl = (ENTROPY_CONTEXT *)&t_left;
235 vp8_intra_prediction_down_copy(xd);
237 for (i = 0; i < 16; i++)
239 MODE_INFO *const mic = xd->mode_info_context;
240 const int mis = xd->mode_info_stride;
241 const B_PREDICTION_MODE A = vp8_above_bmi(mic, i, mis)->mode;
242 const B_PREDICTION_MODE L = vp8_left_bmi(mic, i)->mode;
243 B_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
244 int UNINITIALIZED_IS_SAFE(r), UNINITIALIZED_IS_SAFE(d);
246 error += pick_intra4x4block(rtcd,
247 mb, mb->block + i, xd->block + i, &best_mode, A, L,
248 ta + vp8_block2above[i],
249 tl + vp8_block2left[i], &r, &d);
254 mic->bmi[i].mode = xd->block[i].bmi.mode = best_mode;
256 // Break out case where we have already exceeded best so far value that was bassed in
257 if (distortion > *best_dist)
261 for (i = 0; i < 16; i++)
262 xd->block[i].bmi.mv.as_int = 0;
267 *best_dist = distortion;
269 *best_dist = INT_MAX;
275 int vp8_pick_intra_mbuv_mode(MACROBLOCK *mb)
278 MACROBLOCKD *x = &mb->e_mbd;
279 unsigned char *uabove_row = x->dst.u_buffer - x->dst.uv_stride;
280 unsigned char *vabove_row = x->dst.v_buffer - x->dst.uv_stride;
281 unsigned char *usrc_ptr = (mb->block[16].src + *mb->block[16].base_src);
282 unsigned char *vsrc_ptr = (mb->block[20].src + *mb->block[20].base_src);
283 int uvsrc_stride = mb->block[16].src_stride;
284 unsigned char uleft_col[8];
285 unsigned char vleft_col[8];
286 unsigned char utop_left = uabove_row[-1];
287 unsigned char vtop_left = vabove_row[-1];
295 int pred_error[4] = {0, 0, 0, 0}, best_error = INT_MAX;
296 MB_PREDICTION_MODE UNINITIALIZED_IS_SAFE(best_mode);
299 for (i = 0; i < 8; i++)
301 uleft_col[i] = x->dst.u_buffer [i* x->dst.uv_stride -1];
302 vleft_col[i] = x->dst.v_buffer [i* x->dst.uv_stride -1];
305 if (!x->up_available && !x->left_available)
317 for (i = 0; i < 8; i++)
319 Uaverage += uabove_row[i];
320 Vaverage += vabove_row[i];
327 if (x->left_available)
329 for (i = 0; i < 8; i++)
331 Uaverage += uleft_col[i];
332 Vaverage += vleft_col[i];
339 expected_udc = (Uaverage + (1 << (shift - 1))) >> shift;
340 expected_vdc = (Vaverage + (1 << (shift - 1))) >> shift;
344 for (i = 0; i < 8; i++)
346 for (j = 0; j < 8; j++)
349 int predu = uleft_col[i] + uabove_row[j] - utop_left;
350 int predv = vleft_col[i] + vabove_row[j] - vtop_left;
369 diff = u_p - expected_udc;
370 pred_error[DC_PRED] += diff * diff;
371 diff = v_p - expected_vdc;
372 pred_error[DC_PRED] += diff * diff;
375 diff = u_p - uabove_row[j];
376 pred_error[V_PRED] += diff * diff;
377 diff = v_p - vabove_row[j];
378 pred_error[V_PRED] += diff * diff;
381 diff = u_p - uleft_col[i];
382 pred_error[H_PRED] += diff * diff;
383 diff = v_p - vleft_col[i];
384 pred_error[H_PRED] += diff * diff;
388 pred_error[TM_PRED] += diff * diff;
390 pred_error[TM_PRED] += diff * diff;
395 usrc_ptr += uvsrc_stride;
396 vsrc_ptr += uvsrc_stride;
400 usrc_ptr = (mb->block[18].src + *mb->block[18].base_src);
401 vsrc_ptr = (mb->block[22].src + *mb->block[22].base_src);
409 for (i = DC_PRED; i <= TM_PRED; i++)
411 if (best_error > pred_error[i])
413 best_error = pred_error[i];
414 best_mode = (MB_PREDICTION_MODE)i;
419 mb->e_mbd.mode_info_context->mbmi.uv_mode = best_mode;
425 int vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra)
427 BLOCK *b = &x->block[0];
428 BLOCKD *d = &x->e_mbd.block[0];
429 MACROBLOCKD *xd = &x->e_mbd;
430 B_MODE_INFO best_bmodes[16];
431 MB_MODE_INFO best_mbmode;
432 PARTITION_INFO best_partition;
434 MV mode_mv[MB_MODE_COUNT];
435 MB_PREDICTION_MODE this_mode;
439 int best_rd = INT_MAX; // 1 << 30;
440 int best_intra_rd = INT_MAX;
442 int ref_frame_cost[MAX_REF_FRAMES];
447 //int all_rds[MAX_MODES]; // Experimental debug code.
448 int best_mode_index = 0;
455 unsigned char *y_buffer[4];
456 unsigned char *u_buffer[4];
457 unsigned char *v_buffer[4];
459 int skip_mode[4] = {0, 0, 0, 0};
461 vpx_memset(mode_mv, 0, sizeof(mode_mv));
462 vpx_memset(nearest_mv, 0, sizeof(nearest_mv));
463 vpx_memset(near_mv, 0, sizeof(near_mv));
464 vpx_memset(&best_mbmode, 0, sizeof(best_mbmode));
467 // set up all the refframe dependent pointers.
468 if (cpi->ref_frame_flags & VP8_LAST_FLAG)
470 YV12_BUFFER_CONFIG *lst_yv12 = &cpi->common.yv12_fb[cpi->common.lst_fb_idx];
472 vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context, &nearest_mv[LAST_FRAME], &near_mv[LAST_FRAME],
473 &best_ref_mv[LAST_FRAME], MDCounts[LAST_FRAME], LAST_FRAME, cpi->common.ref_frame_sign_bias);
475 y_buffer[LAST_FRAME] = lst_yv12->y_buffer + recon_yoffset;
476 u_buffer[LAST_FRAME] = lst_yv12->u_buffer + recon_uvoffset;
477 v_buffer[LAST_FRAME] = lst_yv12->v_buffer + recon_uvoffset;
480 skip_mode[LAST_FRAME] = 1;
482 if (cpi->ref_frame_flags & VP8_GOLD_FLAG)
484 YV12_BUFFER_CONFIG *gld_yv12 = &cpi->common.yv12_fb[cpi->common.gld_fb_idx];
486 vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context, &nearest_mv[GOLDEN_FRAME], &near_mv[GOLDEN_FRAME],
487 &best_ref_mv[GOLDEN_FRAME], MDCounts[GOLDEN_FRAME], GOLDEN_FRAME, cpi->common.ref_frame_sign_bias);
489 y_buffer[GOLDEN_FRAME] = gld_yv12->y_buffer + recon_yoffset;
490 u_buffer[GOLDEN_FRAME] = gld_yv12->u_buffer + recon_uvoffset;
491 v_buffer[GOLDEN_FRAME] = gld_yv12->v_buffer + recon_uvoffset;
494 skip_mode[GOLDEN_FRAME] = 1;
496 if (cpi->ref_frame_flags & VP8_ALT_FLAG && cpi->source_alt_ref_active)
498 YV12_BUFFER_CONFIG *alt_yv12 = &cpi->common.yv12_fb[cpi->common.alt_fb_idx];
500 vp8_find_near_mvs(&x->e_mbd, x->e_mbd.mode_info_context, &nearest_mv[ALTREF_FRAME], &near_mv[ALTREF_FRAME],
501 &best_ref_mv[ALTREF_FRAME], MDCounts[ALTREF_FRAME], ALTREF_FRAME, cpi->common.ref_frame_sign_bias);
503 y_buffer[ALTREF_FRAME] = alt_yv12->y_buffer + recon_yoffset;
504 u_buffer[ALTREF_FRAME] = alt_yv12->u_buffer + recon_uvoffset;
505 v_buffer[ALTREF_FRAME] = alt_yv12->v_buffer + recon_uvoffset;
508 skip_mode[ALTREF_FRAME] = 1;
510 cpi->mbs_tested_so_far++; // Count of the number of MBs tested so far this frame
512 *returnintra = best_intra_rd;
515 ref_frame_cost[INTRA_FRAME] = vp8_cost_zero(cpi->prob_intra_coded);
517 // Special case treatment when GF and ARF are not sensible options for reference
518 if (cpi->ref_frame_flags == VP8_LAST_FLAG)
520 ref_frame_cost[LAST_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
521 + vp8_cost_zero(255);
522 ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
524 + vp8_cost_zero(128);
525 ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
531 ref_frame_cost[LAST_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
532 + vp8_cost_zero(cpi->prob_last_coded);
533 ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
534 + vp8_cost_one(cpi->prob_last_coded)
535 + vp8_cost_zero(cpi->prob_gf_coded);
536 ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cpi->prob_intra_coded)
537 + vp8_cost_one(cpi->prob_last_coded)
538 + vp8_cost_one(cpi->prob_gf_coded);
545 x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
547 // if we encode a new mv this is important
548 // find the best new motion vector
549 for (mode_index = 0; mode_index < MAX_MODES; mode_index++)
552 int this_rd = INT_MAX;
554 if (best_rd <= cpi->rd_threshes[mode_index])
557 x->e_mbd.mode_info_context->mbmi.ref_frame = vp8_ref_frame_order[mode_index];
559 if (skip_mode[x->e_mbd.mode_info_context->mbmi.ref_frame])
562 // Check to see if the testing frequency for this mode is at its max
563 // If so then prevent it from being tested and increase the threshold for its testing
564 if (cpi->mode_test_hit_counts[mode_index] && (cpi->mode_check_freq[mode_index] > 1))
566 //if ( (cpi->mbs_tested_so_far / cpi->mode_test_hit_counts[mode_index]) <= cpi->mode_check_freq[mode_index] )
567 if (cpi->mbs_tested_so_far <= (cpi->mode_check_freq[mode_index] * cpi->mode_test_hit_counts[mode_index]))
569 // Increase the threshold for coding this mode to make it less likely to be chosen
570 cpi->rd_thresh_mult[mode_index] += 4;
572 if (cpi->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
573 cpi->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
575 cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
581 // 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
582 cpi->mode_test_hit_counts[mode_index] ++;
587 this_mode = vp8_mode_order[mode_index];
589 // Experimental debug code.
590 //all_rds[mode_index] = -1;
592 x->e_mbd.mode_info_context->mbmi.mode = this_mode;
593 x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
595 // Work out the cost assosciated with selecting the reference frame
596 frame_cost = ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame];
599 // everything but intra
600 if (x->e_mbd.mode_info_context->mbmi.ref_frame)
602 x->e_mbd.pre.y_buffer = y_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
603 x->e_mbd.pre.u_buffer = u_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
604 x->e_mbd.pre.v_buffer = v_buffer[x->e_mbd.mode_info_context->mbmi.ref_frame];
605 mode_mv[NEARESTMV] = nearest_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
606 mode_mv[NEARMV] = near_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
607 best_ref_mv1 = best_ref_mv[x->e_mbd.mode_info_context->mbmi.ref_frame];
608 memcpy(mdcounts, MDCounts[x->e_mbd.mode_info_context->mbmi.ref_frame], sizeof(mdcounts));
611 //Only consider ZEROMV/ALTREF_FRAME for alt ref frame.
612 if (cpi->is_src_frame_alt_ref)
614 if (this_mode != ZEROMV || x->e_mbd.mode_info_context->mbmi.ref_frame != ALTREF_FRAME)
621 distortion2 = *returndistortion; // Best so far passed in as breakout value to vp8_pick_intra4x4mby_modes
622 vp8_pick_intra4x4mby_modes(IF_RTCD(&cpi->rtcd), x, &rate, &distortion2);
624 distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, get16x16prederror)(x->src.y_buffer, x->src.y_stride, x->e_mbd.predictor, 16, 0x7fffffff);
626 if (distortion2 == INT_MAX)
632 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
634 if (this_rd < best_intra_rd)
636 best_intra_rd = this_rd;
637 *returnintra = best_intra_rd ;
645 // Split MV modes currently not supported when RD is nopt enabled.
652 vp8_build_intra_predictors_mby_ptr(&x->e_mbd);
653 distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, get16x16prederror)(x->src.y_buffer, x->src.y_stride, x->e_mbd.predictor, 16, 0x7fffffff);
654 rate2 += x->mbmode_cost[x->e_mbd.frame_type][x->e_mbd.mode_info_context->mbmi.mode];
655 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
657 if (this_rd < best_intra_rd)
659 best_intra_rd = this_rd;
660 *returnintra = best_intra_rd ;
671 int sadpb = x->sadperbit16;
673 // Further step/diamond searches as necessary
676 step_param = cpi->sf.first_step + ((cpi->Speed > 5) ? 1 : 0);
677 further_steps = (cpi->sf.max_step_search_steps - 1) - step_param;
681 step_param = cpi->sf.first_step + 2;
687 // Initial step Search
688 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, &best_ref_mv1);
689 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
690 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
692 // Further step searches
693 while (n < further_steps)
701 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, &best_ref_mv1);
703 if (thissme < bestsme)
706 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
707 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
711 d->bmi.mv.as_mv.row = mode_mv[NEWMV].row;
712 d->bmi.mv.as_mv.col = mode_mv[NEWMV].col;
719 if (cpi->sf.search_method == HEX)
721 bestsme = vp8_hex_search(x, b, d, &best_ref_mv1, &d->bmi.mv.as_mv, step_param, sadpb/*x->errorperbit*/, &num00, &cpi->fn_ptr[BLOCK_16X16], x->mvsadcost, x->mvcost);
722 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
723 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
727 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[BLOCK_16X16], x->mvsadcost, x->mvcost, &best_ref_mv1); //sadpb < 9
728 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
729 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
731 // Further step/diamond searches as necessary
733 //further_steps = (cpi->sf.max_step_search_steps - 1) - step_param;
738 while (n < further_steps)
746 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[BLOCK_16X16], x->mvsadcost, x->mvcost, &best_ref_mv1); //sadpb = 9
748 if (thissme < bestsme)
751 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
752 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
756 d->bmi.mv.as_mv.row = mode_mv[NEWMV].row;
757 d->bmi.mv.as_mv.col = mode_mv[NEWMV].col;
766 if (bestsme < INT_MAX)
767 cpi->find_fractional_mv_step(x, b, d, &d->bmi.mv.as_mv, &best_ref_mv1, x->errorperbit, &cpi->fn_ptr[BLOCK_16X16], cpi->mb.mvcost);
769 mode_mv[NEWMV].row = d->bmi.mv.as_mv.row;
770 mode_mv[NEWMV].col = d->bmi.mv.as_mv.col;
773 rate2 += vp8_mv_bit_cost(&mode_mv[NEWMV], &best_ref_mv1, cpi->mb.mvcost, 128);
779 if (mode_mv[this_mode].row == 0 && mode_mv[this_mode].col == 0)
784 // Trap vectors that reach beyond the UMV borders
785 // Note that ALL New MV, Nearest MV Near MV and Zero MV code drops through to this point
786 // because of the lack of break statements in the previous two cases.
787 if (((mode_mv[this_mode].row >> 3) < x->mv_row_min) || ((mode_mv[this_mode].row >> 3) > x->mv_row_max) ||
788 ((mode_mv[this_mode].col >> 3) < x->mv_col_min) || ((mode_mv[this_mode].col >> 3) > x->mv_col_max))
791 rate2 += vp8_cost_mv_ref(this_mode, mdcounts);
792 x->e_mbd.mode_info_context->mbmi.mode = this_mode;
793 x->e_mbd.mode_info_context->mbmi.mv.as_mv = mode_mv[this_mode];
794 x->e_mbd.block[0].bmi.mode = this_mode;
795 x->e_mbd.block[0].bmi.mv.as_int = x->e_mbd.mode_info_context->mbmi.mv.as_int;
797 distortion2 = get_inter_mbpred_error(x, &cpi->fn_ptr[BLOCK_16X16], (unsigned int *)(&sse));
799 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
801 if (cpi->active_map_enabled && x->active_ptr[0] == 0)
805 else if (sse < x->encode_breakout)
807 // Check u and v to make sure skip is ok
810 sse2 = VP8_UVSSE(x, IF_RTCD(&cpi->rtcd.variance));
812 if (sse2 * 2 < x->encode_breakout)
823 // Experimental debug code.
824 //all_rds[mode_index] = this_rd;
826 if (this_rd < best_rd || x->skip)
828 // Note index of best mode
829 best_mode_index = mode_index;
832 *returndistortion = distortion2;
834 vpx_memcpy(&best_mbmode, &x->e_mbd.mode_info_context->mbmi, sizeof(MB_MODE_INFO));
835 vpx_memcpy(&best_partition, x->partition_info, sizeof(PARTITION_INFO));
837 if (this_mode == B_PRED || this_mode == SPLITMV)
838 for (i = 0; i < 16; i++)
840 vpx_memcpy(&best_bmodes[i], &x->e_mbd.block[i].bmi, sizeof(B_MODE_INFO));
844 best_bmodes[0].mv = x->e_mbd.block[0].bmi.mv;
847 // Testing this mode gave rise to an improvement in best error score. Lower threshold a bit for next time
848 cpi->rd_thresh_mult[mode_index] = (cpi->rd_thresh_mult[mode_index] >= (MIN_THRESHMULT + 2)) ? cpi->rd_thresh_mult[mode_index] - 2 : MIN_THRESHMULT;
849 cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
852 // If the mode did not help improve the best error case then raise the threshold for testing that mode next time around.
855 cpi->rd_thresh_mult[mode_index] += 4;
857 if (cpi->rd_thresh_mult[mode_index] > MAX_THRESHMULT)
858 cpi->rd_thresh_mult[mode_index] = MAX_THRESHMULT;
860 cpi->rd_threshes[mode_index] = (cpi->rd_baseline_thresh[mode_index] >> 7) * cpi->rd_thresh_mult[mode_index];
867 // Reduce the activation RD thresholds for the best choice mode
868 if ((cpi->rd_baseline_thresh[best_mode_index] > 0) && (cpi->rd_baseline_thresh[best_mode_index] < (INT_MAX >> 2)))
870 int best_adjustment = (cpi->rd_thresh_mult[best_mode_index] >> 3);
872 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;
873 cpi->rd_threshes[best_mode_index] = (cpi->rd_baseline_thresh[best_mode_index] >> 7) * cpi->rd_thresh_mult[best_mode_index];
876 // Keep a record of best mode index for use in next loop
877 cpi->last_best_mode_index = best_mode_index;
879 if (best_mbmode.mode <= B_PRED)
881 x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
882 vp8_pick_intra_mbuv_mode(x);
883 best_mbmode.uv_mode = x->e_mbd.mode_info_context->mbmi.uv_mode;
888 int this_rdbin = (*returndistortion >> 7);
890 if (this_rdbin >= 1024)
895 cpi->error_bins[this_rdbin] ++;
899 if (cpi->is_src_frame_alt_ref && (best_mbmode.mode != ZEROMV || best_mbmode.ref_frame != ALTREF_FRAME))
901 best_mbmode.mode = ZEROMV;
902 best_mbmode.ref_frame = ALTREF_FRAME;
903 best_mbmode.mv.as_int = 0;
904 best_mbmode.uv_mode = 0;
905 best_mbmode.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
906 best_mbmode.partitioning = 0;
907 best_mbmode.dc_diff = 0;
909 vpx_memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode, sizeof(MB_MODE_INFO));
910 vpx_memcpy(x->partition_info, &best_partition, sizeof(PARTITION_INFO));
912 for (i = 0; i < 16; i++)
914 vpx_memset(&x->e_mbd.block[i].bmi, 0, sizeof(B_MODE_INFO));
917 x->e_mbd.mode_info_context->mbmi.mv.as_int = 0;
924 vpx_memcpy(&x->e_mbd.mode_info_context->mbmi, &best_mbmode, sizeof(MB_MODE_INFO));
925 vpx_memcpy(x->partition_info, &best_partition, sizeof(PARTITION_INFO));
927 if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED || x->e_mbd.mode_info_context->mbmi.mode == SPLITMV)
928 for (i = 0; i < 16; i++)
930 vpx_memcpy(&x->e_mbd.block[i].bmi, &best_bmodes[i], sizeof(B_MODE_INFO));
935 vp8_set_mbmode_and_mvs(x, x->e_mbd.mode_info_context->mbmi.mode, &best_bmodes[0].mv.as_mv);
938 x->e_mbd.mode_info_context->mbmi.mv.as_mv = x->e_mbd.block[15].bmi.mv.as_mv;