/* * 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 #include "vpx_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/reconintra4x4.h" #include "variance.h" #include "mcomp.h" #include "rdopt.h" #include "vpx_mem/vpx_mem.h" extern int VP8_UVSSE(MACROBLOCK *x); #ifdef SPEEDSTATS extern unsigned int cnt_pm; #endif extern const int vp8_ref_frame_order[MAX_MODES]; extern const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES]; 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; int pre_stride = mb->e_mbd.pre.y_stride; unsigned char *in_what = mb->e_mbd.pre.y_buffer + d->offset ; int in_what_stride = 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) * 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) { unsigned char *sptr; unsigned char *dptr; sptr = (*(be->base_src) + be->src); dptr = b->predictor; return vp8_get4x4sse_cs(sptr, be->src_stride, dptr, 16); } static int pick_intra4x4block( 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]; int dst_stride = x->e_mbd.dst.y_stride; unsigned char *base_dst = x->e_mbd.dst.y_buffer; 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]; vp8_intra4x4_predict (base_dst + b->offset, dst_stride, mode, b->predictor, 16); distortion = get_prediction_error(be, b); 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(x, ib); return best_rd; } static int pick_intra4x4mby_modes ( 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(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)]++; } } #if CONFIG_MULTI_RES_ENCODING static void get_lower_res_motion_info(VP8_COMP *cpi, MACROBLOCKD *xd, int *dissim, int *parent_ref_frame, MB_PREDICTION_MODE *parent_mode, int_mv *parent_ref_mv, int mb_row, int mb_col) { LOWER_RES_INFO* store_mode_info = (LOWER_RES_INFO*)cpi->oxcf.mr_low_res_mode_info; unsigned int parent_mb_index; //unsigned int parent_mb_index = map_640x480_to_320x240[mb_row][mb_col]; /* Consider different down_sampling_factor. */ { /* TODO: Removed the loop that supports special down_sampling_factor * such as 2, 4, 8. Will revisit it if needed. * Should also try using a look-up table to see if it helps * performance. */ int parent_mb_row, parent_mb_col; parent_mb_row = mb_row*cpi->oxcf.mr_down_sampling_factor.den /cpi->oxcf.mr_down_sampling_factor.num; parent_mb_col = mb_col*cpi->oxcf.mr_down_sampling_factor.den /cpi->oxcf.mr_down_sampling_factor.num; parent_mb_index = parent_mb_row*cpi->mr_low_res_mb_cols + parent_mb_col; } /* Read lower-resolution mode & motion result from memory.*/ *parent_ref_frame = store_mode_info[parent_mb_index].ref_frame; *parent_mode = store_mode_info[parent_mb_index].mode; *dissim = store_mode_info[parent_mb_index].dissim; /* For highest-resolution encoder, adjust dissim value. Lower its quality * for good performance. */ if (cpi->oxcf.mr_encoder_id == (cpi->oxcf.mr_total_resolutions - 1)) *dissim>>=1; if(*parent_ref_frame != INTRA_FRAME) { /* Consider different down_sampling_factor. * The result can be rounded to be more precise, but it takes more time. */ //int round = cpi->oxcf.mr_down_sampling_factor.den/2; (*parent_ref_mv).as_mv.row = store_mode_info[parent_mb_index].mv.as_mv.row *cpi->oxcf.mr_down_sampling_factor.num /cpi->oxcf.mr_down_sampling_factor.den; (*parent_ref_mv).as_mv.col = store_mode_info[parent_mb_index].mv.as_mv.col *cpi->oxcf.mr_down_sampling_factor.num /cpi->oxcf.mr_down_sampling_factor.den; vp8_clamp_mv2(parent_ref_mv, xd); } } #endif void vp8_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra, int mb_row, int mb_col) { 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_sb[2]; int_mv mode_mv_sb[2][MB_MODE_COUNT]; int_mv best_ref_mv; int_mv *mode_mv; 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_MAX; 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) unsigned char *plane[4][3]; int ref_frame_map[4]; int sign_bias = 0; int have_subp_search = cpi->sf.half_pixel_search; /* In real-time mode, when Speed >= 15, no sub-pixel search. */ #if CONFIG_MULTI_RES_ENCODING int dissim = INT_MAX; int parent_ref_frame = 0; int_mv parent_ref_mv; MB_PREDICTION_MODE parent_mode = 0; if (cpi->oxcf.mr_encoder_id) get_lower_res_motion_info(cpi, xd, &dissim, &parent_ref_frame, &parent_mode, &parent_ref_mv, mb_row, mb_col); #endif mode_mv = mode_mv_sb[sign_bias]; best_ref_mv.as_int = 0; vpx_memset(mode_mv_sb, 0, sizeof(mode_mv_sb)); vpx_memset(&best_mbmode, 0, sizeof(best_mbmode)); /* Setup search priorities */ get_reference_search_order(cpi, ref_frame_map); /* Check to see if there is at least 1 valid reference frame that we need * to calculate near_mvs. */ if (ref_frame_map[1] > 0) { sign_bias = vp8_find_near_mvs_bias(&x->e_mbd, x->e_mbd.mode_info_context, mode_mv_sb, best_ref_mv_sb, mdcounts, ref_frame_map[1], cpi->common.ref_frame_sign_bias); mode_mv = mode_mv_sb[sign_bias]; best_ref_mv.as_int = best_ref_mv_sb[sign_bias].as_int; } get_predictor_pointers(cpi, plane, recon_yoffset, recon_uvoffset); 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; int this_ref_frame = ref_frame_map[vp8_ref_frame_order[mode_index]]; if (best_rd <= cpi->rd_threshes[mode_index]) continue; if (this_ref_frame < 0) continue; x->e_mbd.mode_info_context->mbmi.ref_frame = this_ref_frame; #if CONFIG_MULTI_RES_ENCODING if (cpi->oxcf.mr_encoder_id) { /* If parent MB is intra, child MB is intra. */ if (!parent_ref_frame && this_ref_frame) continue; /* If parent MB is inter, and it is unlikely there are multiple * objects in parent MB, we use parent ref frame as child MB's * ref frame. */ if (parent_ref_frame && dissim < 8 && parent_ref_frame != this_ref_frame) continue; } #endif // everything but intra if (x->e_mbd.mode_info_context->mbmi.ref_frame) { x->e_mbd.pre.y_buffer = plane[this_ref_frame][0]; x->e_mbd.pre.u_buffer = plane[this_ref_frame][1]; x->e_mbd.pre.v_buffer = plane[this_ref_frame][2]; if (sign_bias != cpi->common.ref_frame_sign_bias[this_ref_frame]) { sign_bias = cpi->common.ref_frame_sign_bias[this_ref_frame]; mode_mv = mode_mv_sb[sign_bias]; best_ref_mv.as_int = best_ref_mv_sb[sign_bias].as_int; } #if CONFIG_MULTI_RES_ENCODING if (cpi->oxcf.mr_encoder_id) { if (vp8_mode_order[mode_index] == NEARESTMV && mode_mv[NEARESTMV].as_int ==0) continue; if (vp8_mode_order[mode_index] == NEARMV && mode_mv[NEARMV].as_int ==0) continue; if (vp8_mode_order[mode_index] == NEWMV && parent_mode == ZEROMV && best_ref_mv.as_int==0) //&& dissim==0 continue; else if(vp8_mode_order[mode_index] == NEWMV && dissim==0 && best_ref_mv.as_int==parent_ref_mv.as_int) continue; } #endif } /* 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_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]; 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->ref_frame_cost[x->e_mbd.mode_info_context->mbmi.ref_frame]; rate2 += frame_cost; /* 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(x, &rate, &distortion2); if (distortion2 == INT_MAX) { this_rd = INT_MAX; } else { rate2 += rate; distortion2 = vp8_variance16x16( *(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: vp8_build_intra_predictors_mby (&x->e_mbd); distortion2 = vp8_variance16x16 (*(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+7)>>3) - MAX_FULL_PEL_VAL; int row_min = ((best_ref_mv.as_mv.row+7)>>3) - MAX_FULL_PEL_VAL; 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 CONFIG_MULTI_RES_ENCODING if (cpi->oxcf.mr_encoder_id) { // Use parent MV as predictor. Adjust search range accordingly. mvp.as_int = parent_ref_mv.as_int; mvp_full.as_mv.col = parent_ref_mv.as_mv.col>>3; mvp_full.as_mv.row = parent_ref_mv.as_mv.row>>3; if(dissim <=32) step_param += 3; else if(dissim <=128) step_param += 2; else step_param += 1; }else #endif { 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; } } #if CONFIG_MULTI_RES_ENCODING if (cpi->oxcf.mr_encoder_id && dissim <= 2 && MAX(abs(best_ref_mv.as_mv.row - parent_ref_mv.as_mv.row), abs(best_ref_mv.as_mv.col - parent_ref_mv.as_mv.col)) <= 4) { d->bmi.mv.as_int = mvp_full.as_int; mode_mv[NEWMV].as_int = mvp_full.as_int; 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); }else #endif { /* 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) { #if CONFIG_MULTI_RES_ENCODING /* TODO: In higher-res pick_inter_mode, step_param is used to * modify hex search range. Here, set step_param to 0 not to * change the behavior in lowest-resolution encoder. * Will improve it later. */ if (!cpi->oxcf.mr_encoder_id) step_param = 0; #endif 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 (sse2 * 2 < x->encode_breakout) x->skip = 1; else x->skip = 0; } break; default: break; } 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); x->e_mbd.mode_info_context->mbmi.partitioning = 0; return; } /* set to the best mb mode, this copy can be skip if x->skip since it * already has the right content */ if (!x->skip) 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); } if (sign_bias != cpi->common.ref_frame_sign_bias[xd->mode_info_context->mbmi.ref_frame]) best_ref_mv.as_int = best_ref_mv_sb[!sign_bias].as_int; update_mvcount(cpi, &x->e_mbd, &best_ref_mv); } 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; vp8_build_intra_predictors_mby (&x->e_mbd); distortion = vp8_variance16x16 (*(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(x, &rate, &best_sse); if (error4x4 < error16x16) { x->e_mbd.mode_info_context->mbmi.mode = B_PRED; best_rate = rate; } *rate_ = best_rate; }