/* * Copyright (c) 2014 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 #include #include #include "./vp9_rtcd.h" #include "vpx_mem/vpx_mem.h" #include "vp9/common/vp9_blockd.h" #include "vp9/common/vp9_common.h" #include "vp9/common/vp9_mvref_common.h" #include "vp9/common/vp9_reconinter.h" #include "vp9/common/vp9_reconintra.h" #include "vp9/encoder/vp9_encoder.h" #include "vp9/encoder/vp9_pickmode.h" #include "vp9/encoder/vp9_ratectrl.h" #include "vp9/encoder/vp9_rd.h" typedef struct { uint8_t *data; int stride; int in_use; } PRED_BUFFER; static int mv_refs_rt(const VP9_COMMON *cm, const MACROBLOCKD *xd, const TileInfo *const tile, MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame, int_mv *mv_ref_list, int mi_row, int mi_col) { const int *ref_sign_bias = cm->ref_frame_sign_bias; int i, refmv_count = 0; const POSITION *const mv_ref_search = mv_ref_blocks[mi->mbmi.sb_type]; int different_ref_found = 0; int context_counter = 0; int const_motion = 0; // Blank the reference vector list vpx_memset(mv_ref_list, 0, sizeof(*mv_ref_list) * MAX_MV_REF_CANDIDATES); // The nearest 2 blocks are treated differently // if the size < 8x8 we get the mv from the bmi substructure, // and we also need to keep a mode count. for (i = 0; i < 2; ++i) { const POSITION *const mv_ref = &mv_ref_search[i]; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) { const MODE_INFO *const candidate_mi = xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride].src_mi; const MB_MODE_INFO *const candidate = &candidate_mi->mbmi; // Keep counts for entropy encoding. context_counter += mode_2_counter[candidate->mode]; different_ref_found = 1; if (candidate->ref_frame[0] == ref_frame) ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 0, mv_ref->col, -1), refmv_count, mv_ref_list, Done); } } const_motion = 1; // Check the rest of the neighbors in much the same way // as before except we don't need to keep track of sub blocks or // mode counts. for (; i < MVREF_NEIGHBOURS && !refmv_count; ++i) { const POSITION *const mv_ref = &mv_ref_search[i]; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) { const MB_MODE_INFO *const candidate = &xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride].src_mi->mbmi; different_ref_found = 1; if (candidate->ref_frame[0] == ref_frame) ADD_MV_REF_LIST(candidate->mv[0], refmv_count, mv_ref_list, Done); } } // Since we couldn't find 2 mvs from the same reference frame // go back through the neighbors and find motion vectors from // different reference frames. if (different_ref_found && !refmv_count) { for (i = 0; i < MVREF_NEIGHBOURS; ++i) { const POSITION *mv_ref = &mv_ref_search[i]; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) { const MB_MODE_INFO *const candidate = &xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride].src_mi->mbmi; // If the candidate is INTRA we don't want to consider its mv. IF_DIFF_REF_FRAME_ADD_MV(candidate, ref_frame, ref_sign_bias, refmv_count, mv_ref_list, Done); } } } Done: mi->mbmi.mode_context[ref_frame] = counter_to_context[context_counter]; // Clamp vectors for (i = 0; i < MAX_MV_REF_CANDIDATES; ++i) clamp_mv_ref(&mv_ref_list[i].as_mv, xd); return const_motion; } static int combined_motion_search(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row, int mi_col, int_mv *tmp_mv, int *rate_mv, int64_t best_rd_sofar) { MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi[0].src_mi->mbmi; struct buf_2d backup_yv12[MAX_MB_PLANE] = {{0, 0}}; const int step_param = cpi->sf.mv.fullpel_search_step_param; const int sadpb = x->sadperbit16; MV mvp_full; const int ref = mbmi->ref_frame[0]; const MV ref_mv = mbmi->ref_mvs[ref][0].as_mv; int dis; int rate_mode; const int tmp_col_min = x->mv_col_min; const int tmp_col_max = x->mv_col_max; const int tmp_row_min = x->mv_row_min; const int tmp_row_max = x->mv_row_max; int rv = 0; int cost_list[5]; const YV12_BUFFER_CONFIG *scaled_ref_frame = vp9_get_scaled_ref_frame(cpi, ref); if (cpi->common.show_frame && (x->pred_mv_sad[ref] >> 3) > x->pred_mv_sad[LAST_FRAME]) return rv; if (scaled_ref_frame) { int i; // Swap out the reference frame for a version that's been scaled to // match the resolution of the current frame, allowing the existing // motion search code to be used without additional modifications. for (i = 0; i < MAX_MB_PLANE; i++) backup_yv12[i] = xd->plane[i].pre[0]; vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL); } vp9_set_mv_search_range(x, &ref_mv); assert(x->mv_best_ref_index[ref] <= 2); if (x->mv_best_ref_index[ref] < 2) mvp_full = mbmi->ref_mvs[ref][x->mv_best_ref_index[ref]].as_mv; else mvp_full = x->pred_mv[ref]; mvp_full.col >>= 3; mvp_full.row >>= 3; vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param, sadpb, cond_cost_list(cpi, cost_list), &ref_mv, &tmp_mv->as_mv, INT_MAX, 0); 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; // calculate the bit cost on motion vector mvp_full.row = tmp_mv->as_mv.row * 8; mvp_full.col = tmp_mv->as_mv.col * 8; *rate_mv = vp9_mv_bit_cost(&mvp_full, &ref_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); rate_mode = cpi->inter_mode_cost[mbmi->mode_context[ref]] [INTER_OFFSET(NEWMV)]; rv = !(RDCOST(x->rdmult, x->rddiv, (*rate_mv + rate_mode), 0) > best_rd_sofar); if (rv) { cpi->find_fractional_mv_step(x, &tmp_mv->as_mv, &ref_mv, cpi->common.allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop, cpi->sf.mv.subpel_iters_per_step, cond_cost_list(cpi, cost_list), x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref], NULL, 0, 0); x->pred_mv[ref] = tmp_mv->as_mv; } if (scaled_ref_frame) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; } return rv; } static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE bsize, MACROBLOCK *x, MACROBLOCKD *xd, int *out_rate_sum, int64_t *out_dist_sum, unsigned int *var_y, unsigned int *sse_y) { // Note our transform coeffs are 8 times an orthogonal transform. // Hence quantizer step is also 8 times. To get effective quantizer // we need to divide by 8 before sending to modeling function. unsigned int sse; int rate; int64_t dist; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &xd->plane[0]; const uint32_t dc_quant = pd->dequant[0]; const uint32_t ac_quant = pd->dequant[1]; unsigned int var = cpi->fn_ptr[bsize].vf(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse); *var_y = var; *sse_y = sse; if (sse < dc_quant * dc_quant >> 6) x->skip_txfm[0] = 1; else if (var < ac_quant * ac_quant >> 6) x->skip_txfm[0] = 2; else x->skip_txfm[0] = 0; if (cpi->common.tx_mode == TX_MODE_SELECT) { if (sse > (var << 2)) xd->mi[0].src_mi->mbmi.tx_size = MIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); else xd->mi[0].src_mi->mbmi.tx_size = TX_8X8; if (cpi->sf.partition_search_type == VAR_BASED_PARTITION && xd->mi[0].src_mi->mbmi.tx_size > TX_16X16) xd->mi[0].src_mi->mbmi.tx_size = TX_16X16; } else { xd->mi[0].src_mi->mbmi.tx_size = MIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); } #if CONFIG_VP9_HIGHBITDEPTH if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> (xd->bd - 5), &rate, &dist); } else { vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> 3, &rate, &dist); } #else vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH *out_rate_sum = rate >> 1; *out_dist_sum = dist << 3; #if CONFIG_VP9_HIGHBITDEPTH if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> (xd->bd - 5), &rate, &dist); } else { vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3, &rate, &dist); } #else vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH *out_rate_sum += rate; *out_dist_sum += dist << 4; if (*out_rate_sum == 0) x->skip_txfm[0] = 1; } static int get_pred_buffer(PRED_BUFFER *p, int len) { int i; for (i = 0; i < len; i++) { if (!p[i].in_use) { p[i].in_use = 1; return i; } } return -1; } static void free_pred_buffer(PRED_BUFFER *p) { if (p != NULL) p->in_use = 0; } static void encode_breakout_test(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row, int mi_col, MV_REFERENCE_FRAME ref_frame, PREDICTION_MODE this_mode, unsigned int var_y, unsigned int sse_y, struct buf_2d yv12_mb[][MAX_MB_PLANE], int *rate, int64_t *dist) { MACROBLOCKD *xd = &x->e_mbd; MB_MODE_INFO *mbmi = &xd->mi[0].src_mi->mbmi; const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]); unsigned int var = var_y, sse = sse_y; // Skipping threshold for ac. unsigned int thresh_ac; // Skipping threshold for dc. unsigned int thresh_dc; if (x->encode_breakout > 0) { // Set a maximum for threshold to avoid big PSNR loss in low bit rate // case. Use extreme low threshold for static frames to limit // skipping. const unsigned int max_thresh = 36000; // The encode_breakout input const unsigned int min_thresh = MIN(((unsigned int)x->encode_breakout << 4), max_thresh); #if CONFIG_VP9_HIGHBITDEPTH const int shift = 2 * xd->bd - 16; #endif // Calculate threshold according to dequant value. thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) / 9; #if CONFIG_VP9_HIGHBITDEPTH if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) { thresh_ac = ROUND_POWER_OF_TWO(thresh_ac, shift); } #endif // CONFIG_VP9_HIGHBITDEPTH thresh_ac = clamp(thresh_ac, min_thresh, max_thresh); // Adjust ac threshold according to partition size. thresh_ac >>= 8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6); #if CONFIG_VP9_HIGHBITDEPTH if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) { thresh_dc = ROUND_POWER_OF_TWO(thresh_dc, shift); } #endif // CONFIG_VP9_HIGHBITDEPTH } else { thresh_ac = 0; thresh_dc = 0; } // Y skipping condition checking for ac and dc. if (var <= thresh_ac && (sse - var) <= thresh_dc) { unsigned int sse_u, sse_v; unsigned int var_u, var_v; // Skip UV prediction unless breakout is zero (lossless) to save // computation with low impact on the result if (x->encode_breakout == 0) { xd->plane[1].pre[0] = yv12_mb[ref_frame][1]; xd->plane[2].pre[0] = yv12_mb[ref_frame][2]; vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, bsize); } var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf, x->plane[1].src.stride, xd->plane[1].dst.buf, xd->plane[1].dst.stride, &sse_u); // U skipping condition checking if ((var_u * 4 <= thresh_ac) && (sse_u - var_u <= thresh_dc)) { var_v = cpi->fn_ptr[uv_size].vf(x->plane[2].src.buf, x->plane[2].src.stride, xd->plane[2].dst.buf, xd->plane[2].dst.stride, &sse_v); // V skipping condition checking if ((var_v * 4 <= thresh_ac) && (sse_v - var_v <= thresh_dc)) { x->skip = 1; // The cost of skip bit needs to be added. *rate = cpi->inter_mode_cost[mbmi->mode_context[ref_frame]] [INTER_OFFSET(this_mode)]; // More on this part of rate // rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); // Scaling factor for SSE from spatial domain to frequency // domain is 16. Adjust distortion accordingly. // TODO(yunqingwang): In this function, only y-plane dist is // calculated. *dist = (sse << 4); // + ((sse_u + sse_v) << 4); // *disable_skip = 1; } } } } struct estimate_block_intra_args { VP9_COMP *cpi; MACROBLOCK *x; PREDICTION_MODE mode; int rate; int64_t dist; }; static void estimate_block_intra(int plane, int block, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, void *arg) { struct estimate_block_intra_args* const args = arg; VP9_COMP *const cpi = args->cpi; MACROBLOCK *const x = args->x; MACROBLOCKD *const xd = &x->e_mbd; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &xd->plane[0]; const BLOCK_SIZE bsize_tx = txsize_to_bsize[tx_size]; uint8_t *const src_buf_base = p->src.buf; uint8_t *const dst_buf_base = pd->dst.buf; const int src_stride = p->src.stride; const int dst_stride = pd->dst.stride; int i, j; int rate; int64_t dist; unsigned int var_y, sse_y; txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &i, &j); assert(plane == 0); (void) plane; p->src.buf = &src_buf_base[4 * (j * src_stride + i)]; pd->dst.buf = &dst_buf_base[4 * (j * dst_stride + i)]; // Use source buffer as an approximation for the fully reconstructed buffer. vp9_predict_intra_block(xd, block >> (2 * tx_size), b_width_log2_lookup[plane_bsize], tx_size, args->mode, x->skip_encode ? p->src.buf : pd->dst.buf, x->skip_encode ? src_stride : dst_stride, pd->dst.buf, dst_stride, i, j, 0); // This procedure assumes zero offset from p->src.buf and pd->dst.buf. model_rd_for_sb_y(cpi, bsize_tx, x, xd, &rate, &dist, &var_y, &sse_y); p->src.buf = src_buf_base; pd->dst.buf = dst_buf_base; args->rate += rate; args->dist += dist; } static const THR_MODES mode_idx[MAX_REF_FRAMES - 1][4] = { {THR_DC, THR_H_PRED, THR_V_PRED, THR_TM}, {THR_NEARESTMV, THR_NEARMV, THR_ZEROMV, THR_NEWMV}, {THR_NEARESTG, THR_NEARG, THR_ZEROG, THR_NEWG}, }; static const PREDICTION_MODE intra_mode_list[] = { DC_PRED, V_PRED, H_PRED, TM_PRED }; void vp9_pick_intra_mode(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *rd_cost, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) { MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi; RD_COST this_rdc, best_rdc; PREDICTION_MODE this_mode; struct estimate_block_intra_args args = { cpi, x, DC_PRED, 0, 0 }; const TX_SIZE intra_tx_size = MIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); MODE_INFO *const mic = xd->mi[0].src_mi; int *bmode_costs; const MODE_INFO *above_mi = xd->mi[-xd->mi_stride].src_mi; const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1].src_mi : NULL; const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0); const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0); bmode_costs = cpi->y_mode_costs[A][L]; (void) ctx; vp9_rd_cost_reset(&best_rdc); vp9_rd_cost_reset(&this_rdc); mbmi->ref_frame[0] = INTRA_FRAME; mbmi->mv[0].as_int = INVALID_MV; mbmi->uv_mode = DC_PRED; vpx_memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); // Change the limit of this loop to add other intra prediction // mode tests. for (this_mode = DC_PRED; this_mode <= H_PRED; ++this_mode) { args.mode = this_mode; args.rate = 0; args.dist = 0; mbmi->tx_size = intra_tx_size; vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra, &args); this_rdc.rate = args.rate; this_rdc.dist = args.dist; this_rdc.rate += bmode_costs[this_mode]; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); if (this_rdc.rdcost < best_rdc.rdcost) { best_rdc = this_rdc; mbmi->mode = this_mode; } } *rd_cost = best_rdc; } // TODO(jingning) placeholder for inter-frame non-RD mode decision. // this needs various further optimizations. to be continued.. void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, int mi_row, int mi_col, RD_COST *rd_cost, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) { VP9_COMMON *const cm = &cpi->common; TileInfo *const tile_info = &tile_data->tile_info; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO *const mbmi = &xd->mi[0].src_mi->mbmi; struct macroblockd_plane *const pd = &xd->plane[0]; PREDICTION_MODE best_mode = ZEROMV; MV_REFERENCE_FRAME ref_frame, best_ref_frame = LAST_FRAME; TX_SIZE best_tx_size = TX_SIZES; INTERP_FILTER best_pred_filter = EIGHTTAP; int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES]; struct buf_2d yv12_mb[4][MAX_MB_PLANE]; static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG, VP9_ALT_FLAG }; RD_COST this_rdc, best_rdc; uint8_t skip_txfm = 0, best_mode_skip_txfm = 0; // var_y and sse_y are saved to be used in skipping checking unsigned int var_y = UINT_MAX; unsigned int sse_y = UINT_MAX; // Reduce the intra cost penalty for small blocks (<=16x16). const int reduction_fac = (cpi->sf.partition_search_type == VAR_BASED_PARTITION && bsize <= BLOCK_16X16) ? 2 : 0; const int intra_cost_penalty = vp9_get_intra_cost_penalty( cm->base_qindex, cm->y_dc_delta_q, cm->bit_depth) >> reduction_fac; const int64_t inter_mode_thresh = RDCOST(x->rdmult, x->rddiv, intra_cost_penalty, 0); const int8_t segment_id = mbmi->segment_id; const int *const rd_threshes = cpi->rd.threshes[segment_id][bsize]; const int *const rd_thresh_freq_fact = tile_data->thresh_freq_fact[bsize]; INTERP_FILTER filter_ref; const int bsl = mi_width_log2_lookup[bsize]; const int pred_filter_search = cm->interp_filter == SWITCHABLE ? (((mi_row + mi_col) >> bsl) + get_chessboard_index(cm->current_video_frame)) & 0x1 : 0; int const_motion[MAX_REF_FRAMES] = { 0 }; const int bh = num_4x4_blocks_high_lookup[bsize] << 2; const int bw = num_4x4_blocks_wide_lookup[bsize] << 2; // For speed 6, the result of interp filter is reused later in actual encoding // process. // tmp[3] points to dst buffer, and the other 3 point to allocated buffers. PRED_BUFFER tmp[4]; DECLARE_ALIGNED_ARRAY(16, uint8_t, pred_buf, 3 * 64 * 64); #if CONFIG_VP9_HIGHBITDEPTH DECLARE_ALIGNED_ARRAY(16, uint16_t, pred_buf_16, 3 * 64 * 64); #endif struct buf_2d orig_dst = pd->dst; PRED_BUFFER *best_pred = NULL; PRED_BUFFER *this_mode_pred = NULL; const int pixels_in_block = bh * bw; int reuse_inter_pred = cpi->sf.reuse_inter_pred_sby && ctx->pred_pixel_ready; int ref_frame_skip_mask = 0; if (reuse_inter_pred) { int i; for (i = 0; i < 3; i++) { #if CONFIG_VP9_HIGHBITDEPTH if (cm->use_highbitdepth) tmp[i].data = CONVERT_TO_BYTEPTR(&pred_buf_16[pixels_in_block * i]); else tmp[i].data = &pred_buf[pixels_in_block * i]; #else tmp[i].data = &pred_buf[pixels_in_block * i]; #endif // CONFIG_VP9_HIGHBITDEPTH tmp[i].stride = bw; tmp[i].in_use = 0; } tmp[3].data = pd->dst.buf; tmp[3].stride = pd->dst.stride; tmp[3].in_use = 0; } x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; x->skip = 0; if (xd->up_available) filter_ref = xd->mi[-xd->mi_stride].src_mi->mbmi.interp_filter; else if (xd->left_available) filter_ref = xd->mi[-1].src_mi->mbmi.interp_filter; else filter_ref = cm->interp_filter; // initialize mode decisions vp9_rd_cost_reset(&best_rdc); vp9_rd_cost_reset(rd_cost); mbmi->sb_type = bsize; mbmi->ref_frame[0] = NONE; mbmi->ref_frame[1] = NONE; mbmi->tx_size = MIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cm->tx_mode]); mbmi->interp_filter = cm->interp_filter == SWITCHABLE ? EIGHTTAP : cm->interp_filter; mbmi->segment_id = segment_id; for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { x->pred_mv_sad[ref_frame] = INT_MAX; frame_mv[NEWMV][ref_frame].as_int = INVALID_MV; frame_mv[ZEROMV][ref_frame].as_int = 0; if (cpi->ref_frame_flags & flag_list[ref_frame]) { const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame); int_mv *const candidates = mbmi->ref_mvs[ref_frame]; const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf; vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf); if (cm->use_prev_frame_mvs) vp9_find_mv_refs(cm, xd, tile_info, xd->mi[0].src_mi, ref_frame, candidates, mi_row, mi_col); else const_motion[ref_frame] = mv_refs_rt(cm, xd, tile_info, xd->mi[0].src_mi, ref_frame, candidates, mi_row, mi_col); vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates, &frame_mv[NEARESTMV][ref_frame], &frame_mv[NEARMV][ref_frame]); if (!vp9_is_scaled(sf) && bsize >= BLOCK_8X8) vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride, ref_frame, bsize); } else { ref_frame_skip_mask |= (1 << ref_frame); } } for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { PREDICTION_MODE this_mode; int i = (ref_frame == LAST_FRAME) ? GOLDEN_FRAME : LAST_FRAME; if (!(cpi->ref_frame_flags & flag_list[ref_frame])) continue; if (cpi->ref_frame_flags & flag_list[i]) if (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[i] << 1)) ref_frame_skip_mask |= (1 << ref_frame); if (ref_frame_skip_mask & (1 << ref_frame)) continue; // Select prediction reference frames. xd->plane[0].pre[0] = yv12_mb[ref_frame][0]; clamp_mv2(&frame_mv[NEARESTMV][ref_frame].as_mv, xd); clamp_mv2(&frame_mv[NEARMV][ref_frame].as_mv, xd); mbmi->ref_frame[0] = ref_frame; for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { int rate_mv = 0; int mode_rd_thresh; int mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)]; if (const_motion[ref_frame] && this_mode == NEARMV) continue; if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode))) continue; mode_rd_thresh = best_mode_skip_txfm ? rd_threshes[mode_index] << 1 : rd_threshes[mode_index]; if (rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh, rd_thresh_freq_fact[mode_index])) continue; if (this_mode == NEWMV) { if (ref_frame > LAST_FRAME) continue; if (cpi->sf.partition_search_type != VAR_BASED_PARTITION && best_rdc.rdcost < (int64_t)(1 << num_pels_log2_lookup[bsize])) continue; if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col, &frame_mv[NEWMV][ref_frame], &rate_mv, best_rdc.rdcost)) continue; } if (this_mode != NEARESTMV && frame_mv[this_mode][ref_frame].as_int == frame_mv[NEARESTMV][ref_frame].as_int) continue; mbmi->mode = this_mode; mbmi->mv[0].as_int = frame_mv[this_mode][ref_frame].as_int; // Search for the best prediction filter type, when the resulting // motion vector is at sub-pixel accuracy level for luma component, i.e., // the last three bits are all zeros. if (reuse_inter_pred) { if (!this_mode_pred) { this_mode_pred = &tmp[3]; } else { this_mode_pred = &tmp[get_pred_buffer(tmp, 3)]; pd->dst.buf = this_mode_pred->data; pd->dst.stride = bw; } } if ((this_mode == NEWMV || filter_ref == SWITCHABLE) && pred_filter_search && ((mbmi->mv[0].as_mv.row & 0x07) != 0 || (mbmi->mv[0].as_mv.col & 0x07) != 0)) { int pf_rate[3]; int64_t pf_dist[3]; unsigned int pf_var[3]; unsigned int pf_sse[3]; TX_SIZE pf_tx_size[3]; int64_t best_cost = INT64_MAX; INTERP_FILTER best_filter = SWITCHABLE, filter; PRED_BUFFER *current_pred = this_mode_pred; for (filter = EIGHTTAP; filter <= EIGHTTAP_SHARP; ++filter) { int64_t cost; mbmi->interp_filter = filter; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); model_rd_for_sb_y(cpi, bsize, x, xd, &pf_rate[filter], &pf_dist[filter], &pf_var[filter], &pf_sse[filter]); cost = RDCOST(x->rdmult, x->rddiv, vp9_get_switchable_rate(cpi, xd) + pf_rate[filter], pf_dist[filter]); pf_tx_size[filter] = mbmi->tx_size; if (cost < best_cost) { best_filter = filter; best_cost = cost; skip_txfm = x->skip_txfm[0]; if (reuse_inter_pred) { if (this_mode_pred != current_pred) { free_pred_buffer(this_mode_pred); this_mode_pred = current_pred; } if (filter < EIGHTTAP_SHARP) { current_pred = &tmp[get_pred_buffer(tmp, 3)]; pd->dst.buf = current_pred->data; pd->dst.stride = bw; } } } } if (reuse_inter_pred && this_mode_pred != current_pred) free_pred_buffer(current_pred); mbmi->interp_filter = best_filter; mbmi->tx_size = pf_tx_size[mbmi->interp_filter]; this_rdc.rate = pf_rate[mbmi->interp_filter]; this_rdc.dist = pf_dist[mbmi->interp_filter]; var_y = pf_var[mbmi->interp_filter]; sse_y = pf_sse[mbmi->interp_filter]; x->skip_txfm[0] = skip_txfm; } else { mbmi->interp_filter = (filter_ref == SWITCHABLE) ? EIGHTTAP: filter_ref; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist, &var_y, &sse_y); } this_rdc.rate += rate_mv; this_rdc.rate += cpi->inter_mode_cost[mbmi->mode_context[ref_frame]] [INTER_OFFSET(this_mode)]; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); // Skipping checking: test to see if this block can be reconstructed by // prediction only. if (cpi->allow_encode_breakout) { encode_breakout_test(cpi, x, bsize, mi_row, mi_col, ref_frame, this_mode, var_y, sse_y, yv12_mb, &this_rdc.rate, &this_rdc.dist); if (x->skip) { this_rdc.rate += rate_mv; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); } } #if CONFIG_VP9_TEMPORAL_DENOISING if (cpi->oxcf.noise_sensitivity > 0) vp9_denoiser_update_frame_stats(mbmi, sse_y, this_mode, ctx); #else (void)ctx; #endif if (this_rdc.rdcost < best_rdc.rdcost || x->skip) { best_rdc = this_rdc; best_mode = this_mode; best_pred_filter = mbmi->interp_filter; best_tx_size = mbmi->tx_size; best_ref_frame = ref_frame; best_mode_skip_txfm = x->skip_txfm[0]; if (reuse_inter_pred) { free_pred_buffer(best_pred); best_pred = this_mode_pred; } } else { if (reuse_inter_pred) free_pred_buffer(this_mode_pred); } if (x->skip) break; } // Check that a prediction mode has been selected. assert(best_rdc.rdcost < INT64_MAX); if (x->skip) break; } mbmi->mode = best_mode; mbmi->interp_filter = best_pred_filter; mbmi->tx_size = best_tx_size; mbmi->ref_frame[0] = best_ref_frame; mbmi->mv[0].as_int = frame_mv[best_mode][best_ref_frame].as_int; xd->mi[0].src_mi->bmi[0].as_mv[0].as_int = mbmi->mv[0].as_int; x->skip_txfm[0] = best_mode_skip_txfm; // Perform intra prediction search, if the best SAD is above a certain // threshold. if (best_rdc.rdcost == INT64_MAX || (!x->skip && best_rdc.rdcost > inter_mode_thresh && bsize <= cpi->sf.max_intra_bsize)) { struct estimate_block_intra_args args = { cpi, x, DC_PRED, 0, 0 }; const TX_SIZE intra_tx_size = MIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); int i; TX_SIZE best_intra_tx_size = TX_SIZES; if (reuse_inter_pred && best_pred != NULL) { if (best_pred->data == orig_dst.buf) { this_mode_pred = &tmp[get_pred_buffer(tmp, 3)]; #if CONFIG_VP9_HIGHBITDEPTH if (cm->use_highbitdepth) vp9_highbd_convolve_copy(best_pred->data, best_pred->stride, this_mode_pred->data, this_mode_pred->stride, NULL, 0, NULL, 0, bw, bh, xd->bd); else vp9_convolve_copy(best_pred->data, best_pred->stride, this_mode_pred->data, this_mode_pred->stride, NULL, 0, NULL, 0, bw, bh); #else vp9_convolve_copy(best_pred->data, best_pred->stride, this_mode_pred->data, this_mode_pred->stride, NULL, 0, NULL, 0, bw, bh); #endif // CONFIG_VP9_HIGHBITDEPTH best_pred = this_mode_pred; } } pd->dst = orig_dst; for (i = 0; i < 4; ++i) { const PREDICTION_MODE this_mode = intra_mode_list[i]; if (!((1 << this_mode) & cpi->sf.intra_y_mode_mask[intra_tx_size])) continue; args.mode = this_mode; args.rate = 0; args.dist = 0; mbmi->tx_size = intra_tx_size; vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra, &args); this_rdc.rate = args.rate; this_rdc.dist = args.dist; this_rdc.rate += cpi->mbmode_cost[this_mode]; this_rdc.rate += intra_cost_penalty; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); if (this_rdc.rdcost < best_rdc.rdcost) { best_rdc = this_rdc; mbmi->mode = this_mode; best_intra_tx_size = mbmi->tx_size; mbmi->ref_frame[0] = INTRA_FRAME; mbmi->uv_mode = this_mode; mbmi->mv[0].as_int = INVALID_MV; } } // Reset mb_mode_info to the best inter mode. if (mbmi->ref_frame[0] != INTRA_FRAME) { x->skip_txfm[0] = best_mode_skip_txfm; mbmi->tx_size = best_tx_size; } else { mbmi->tx_size = best_intra_tx_size; } } pd->dst = orig_dst; if (reuse_inter_pred && best_pred != NULL) { if (best_pred->data != orig_dst.buf && is_inter_mode(mbmi->mode)) { #if CONFIG_VP9_HIGHBITDEPTH if (cm->use_highbitdepth) vp9_highbd_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf, pd->dst.stride, NULL, 0, NULL, 0, bw, bh, xd->bd); else vp9_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf, pd->dst.stride, NULL, 0, NULL, 0, bw, bh); #else vp9_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf, pd->dst.stride, NULL, 0, NULL, 0, bw, bh); #endif // CONFIG_VP9_HIGHBITDEPTH } } if (cpi->sf.adaptive_rd_thresh) { THR_MODES best_mode_idx = is_inter_block(mbmi) ? mode_idx[best_ref_frame][INTER_OFFSET(mbmi->mode)] : mode_idx[INTRA_FRAME][mbmi->mode]; PREDICTION_MODE this_mode; for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { THR_MODES thr_mode_idx = mode_idx[ref_frame][INTER_OFFSET(this_mode)]; int *freq_fact = &tile_data->thresh_freq_fact[bsize][thr_mode_idx]; if (thr_mode_idx == best_mode_idx) *freq_fact -= (*freq_fact >> 4); else *freq_fact = MIN(*freq_fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); } } } *rd_cost = best_rdc; }