| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the |
| * Alliance for Open Media Patent License 1.0 was not distributed with this |
| * source code in the PATENTS file, you can obtain it at |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #include "av1/common/pred_common.h" |
| #include "av1/encoder/interp_search.h" |
| #include "av1/encoder/model_rd.h" |
| #include "av1/encoder/rdopt_utils.h" |
| #include "av1/encoder/reconinter_enc.h" |
| |
| // return mv_diff |
| static INLINE int is_interp_filter_good_match( |
| const INTERPOLATION_FILTER_STATS *st, MB_MODE_INFO *const mi, |
| int skip_level) { |
| const int is_comp = has_second_ref(mi); |
| int i; |
| |
| for (i = 0; i < 1 + is_comp; ++i) { |
| if (st->ref_frames[i] != mi->ref_frame[i]) return INT_MAX; |
| } |
| |
| if (skip_level == 1 && is_comp) { |
| if (st->comp_type != mi->interinter_comp.type) return INT_MAX; |
| } |
| |
| int mv_diff = 0; |
| for (i = 0; i < 1 + is_comp; ++i) { |
| mv_diff += abs(st->mv[i].as_mv.row - mi->mv[i].as_mv.row) + |
| abs(st->mv[i].as_mv.col - mi->mv[i].as_mv.col); |
| } |
| return mv_diff; |
| } |
| |
| static INLINE int save_interp_filter_search_stat( |
| MB_MODE_INFO *const mbmi, int64_t rd, unsigned int pred_sse, |
| INTERPOLATION_FILTER_STATS *interp_filter_stats, |
| int interp_filter_stats_idx) { |
| if (interp_filter_stats_idx < MAX_INTERP_FILTER_STATS) { |
| INTERPOLATION_FILTER_STATS stat = { mbmi->interp_fltr, |
| { mbmi->mv[0], mbmi->mv[1] }, |
| { mbmi->ref_frame[0], |
| mbmi->ref_frame[1] }, |
| mbmi->interinter_comp.type, |
| rd, |
| pred_sse }; |
| interp_filter_stats[interp_filter_stats_idx] = stat; |
| interp_filter_stats_idx++; |
| } |
| return interp_filter_stats_idx; |
| } |
| |
| static INLINE int find_interp_filter_in_stats( |
| MB_MODE_INFO *const mbmi, INTERPOLATION_FILTER_STATS *interp_filter_stats, |
| int interp_filter_stats_idx, int skip_level) { |
| // [skip_levels][single or comp] |
| const int thr[2][2] = { { 0, 0 }, { 3, 7 } }; |
| const int is_comp = has_second_ref(mbmi); |
| |
| // Find good enough match. |
| // TODO(yunqing): Separate single-ref mode and comp mode stats for fast |
| // search. |
| int best = INT_MAX; |
| int match = -1; |
| for (int j = 0; j < interp_filter_stats_idx; ++j) { |
| const INTERPOLATION_FILTER_STATS *st = &interp_filter_stats[j]; |
| const int mv_diff = is_interp_filter_good_match(st, mbmi, skip_level); |
| // Exact match is found. |
| if (mv_diff == 0) { |
| match = j; |
| break; |
| } else if (mv_diff < best && mv_diff <= thr[skip_level - 1][is_comp]) { |
| best = mv_diff; |
| match = j; |
| } |
| } |
| |
| if (match != -1) { |
| mbmi->interp_fltr = interp_filter_stats[match].interp_fltr; |
| return match; |
| } |
| return -1; // no match result found |
| } |
| |
| int av1_find_interp_filter_match( |
| MB_MODE_INFO *const mbmi, const AV1_COMP *const cpi, |
| const InterpFilter assign_filter, const int need_search, |
| INTERPOLATION_FILTER_STATS *interp_filter_stats, |
| int interp_filter_stats_idx) { |
| int match_found_idx = -1; |
| if (cpi->sf.interp_sf.use_interp_filter && need_search) |
| match_found_idx = find_interp_filter_in_stats( |
| mbmi, interp_filter_stats, interp_filter_stats_idx, |
| cpi->sf.interp_sf.use_interp_filter); |
| |
| if (!need_search || match_found_idx == -1) |
| set_default_interp_filters(mbmi, |
| #if CONFIG_OPTFLOW_REFINEMENT |
| &cpi->common, |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| assign_filter); |
| return match_found_idx; |
| } |
| |
| static INLINE void swap_dst_buf(MACROBLOCKD *xd, const BUFFER_SET *dst_bufs[2], |
| int num_planes) { |
| const BUFFER_SET *buf0 = dst_bufs[0]; |
| dst_bufs[0] = dst_bufs[1]; |
| dst_bufs[1] = buf0; |
| restore_dst_buf(xd, *dst_bufs[0], num_planes); |
| } |
| |
| static INLINE int get_switchable_rate(MACROBLOCK *const x, |
| const InterpFilter interp_fltr, |
| const int ctx[2]) { |
| #if CONFIG_OPTFLOW_REFINEMENT |
| // When optical flow refinement is used, interp filter type is always set |
| // to MULTITAP_SHARP, and thus is not switchable. |
| assert(x->e_mbd.mi[0]->mode < NEAR_NEARMV_OPTFLOW); |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| const int inter_filter_cost = |
| x->mode_costs.switchable_interp_costs[ctx[0]][interp_fltr]; |
| return SWITCHABLE_INTERP_RATE_FACTOR * inter_filter_cost; |
| } |
| |
| // Build inter predictor and calculate model rd |
| // for a given plane. |
| static INLINE void interp_model_rd_eval( |
| MACROBLOCK *const x, const AV1_COMP *const cpi, BLOCK_SIZE bsize, |
| const BUFFER_SET *const orig_dst, int plane_from, int plane_to, |
| RD_STATS *rd_stats, int is_skip_build_pred) { |
| const AV1_COMMON *cm = &cpi->common; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| RD_STATS tmp_rd_stats; |
| av1_init_rd_stats(&tmp_rd_stats); |
| |
| // Skip inter predictor if the predictor is already available. |
| if (!is_skip_build_pred) { |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| av1_enc_build_inter_predictor(cm, xd, mi_row, mi_col, orig_dst, bsize, |
| plane_from, plane_to); |
| } |
| |
| model_rd_sb_fn[MODELRD_TYPE_INTERP_FILTER]( |
| cpi, bsize, x, xd, plane_from, plane_to, &tmp_rd_stats.rate, |
| &tmp_rd_stats.dist, &tmp_rd_stats.skip_txfm, &tmp_rd_stats.sse, NULL, |
| NULL, NULL); |
| |
| av1_merge_rd_stats(rd_stats, &tmp_rd_stats); |
| } |
| |
| // calculate the rdcost of given interpolation_filter |
| static INLINE int64_t interpolation_filter_rd( |
| MACROBLOCK *const x, const AV1_COMP *const cpi, |
| const TileDataEnc *tile_data, BLOCK_SIZE bsize, |
| const BUFFER_SET *const orig_dst, int64_t *const rd, |
| RD_STATS *rd_stats_luma, RD_STATS *rd_stats, int *const switchable_rate, |
| const BUFFER_SET *dst_bufs[2], int filter_idx, const int switchable_ctx[2], |
| const int skip_pred) { |
| const AV1_COMMON *cm = &cpi->common; |
| const InterpSearchFlags *interp_search_flags = &cpi->interp_search_flags; |
| const int num_planes = av1_num_planes(cm); |
| MACROBLOCKD *const xd = &x->e_mbd; |
| MB_MODE_INFO *const mbmi = xd->mi[0]; |
| RD_STATS this_rd_stats_luma, this_rd_stats; |
| |
| // Initialize rd_stats structures to default values. |
| av1_init_rd_stats(&this_rd_stats_luma); |
| this_rd_stats = *rd_stats_luma; |
| const InterpFilter last_best = mbmi->interp_fltr; |
| mbmi->interp_fltr = filter_idx; |
| #if CONFIG_OPTFLOW_REFINEMENT |
| const int tmp_rs = |
| (mbmi->mode >= NEAR_NEARMV_OPTFLOW || use_opfl_refine_all(cm, mbmi)) |
| ? 0 |
| : get_switchable_rate(x, mbmi->interp_fltr, switchable_ctx); |
| #else |
| const int tmp_rs = get_switchable_rate(x, mbmi->interp_fltr, switchable_ctx); |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| |
| int64_t min_rd = RDCOST(x->rdmult, tmp_rs, 0); |
| if (min_rd > *rd) { |
| mbmi->interp_fltr = last_best; |
| return 0; |
| } |
| |
| (void)tile_data; |
| |
| assert(skip_pred != 2); |
| assert((rd_stats_luma->rate >= 0) && (rd_stats->rate >= 0)); |
| assert((rd_stats_luma->dist >= 0) && (rd_stats->dist >= 0)); |
| assert((rd_stats_luma->sse >= 0) && (rd_stats->sse >= 0)); |
| assert((rd_stats_luma->skip_txfm == 0) || (rd_stats_luma->skip_txfm == 1)); |
| assert((rd_stats->skip_txfm == 0) || (rd_stats->skip_txfm == 1)); |
| assert((skip_pred >= 0) && |
| (skip_pred <= interp_search_flags->default_interp_skip_flags)); |
| |
| // When skip_txfm pred is equal to default_interp_skip_flags, |
| // skip both luma and chroma MC. |
| // For mono-chrome images: |
| // num_planes = 1 and cpi->default_interp_skip_flags = 1, |
| // skip_pred = 1: skip both luma and chroma |
| // skip_pred = 0: Evaluate luma and as num_planes=1, |
| // skip chroma evaluation |
| int tmp_skip_pred = |
| (skip_pred == interp_search_flags->default_interp_skip_flags) |
| ? INTERP_SKIP_LUMA_SKIP_CHROMA |
| : skip_pred; |
| |
| switch (tmp_skip_pred) { |
| case INTERP_EVAL_LUMA_EVAL_CHROMA: |
| // skip_pred = 0: Evaluate both luma and chroma. |
| // Luma MC |
| interp_model_rd_eval(x, cpi, bsize, orig_dst, AOM_PLANE_Y, AOM_PLANE_Y, |
| &this_rd_stats_luma, 0); |
| this_rd_stats = this_rd_stats_luma; |
| #if CONFIG_COLLECT_RD_STATS == 3 |
| RD_STATS rd_stats_y; |
| av1_pick_recursive_tx_size_type_yrd(cpi, x, &rd_stats_y, bsize, |
| INT64_MAX); |
| PrintPredictionUnitStats(cpi, tile_data, x, &rd_stats_y, bsize); |
| #endif // CONFIG_COLLECT_RD_STATS == 3 |
| AOM_FALLTHROUGH_INTENDED; |
| case INTERP_SKIP_LUMA_EVAL_CHROMA: |
| // skip_pred = 1: skip luma evaluation (retain previous best luma stats) |
| // and do chroma evaluation. |
| for (int plane = 1; plane < num_planes; ++plane) { |
| int64_t tmp_rd = |
| RDCOST(x->rdmult, tmp_rs + this_rd_stats.rate, this_rd_stats.dist); |
| if (tmp_rd >= *rd) { |
| mbmi->interp_fltr = last_best; |
| return 0; |
| } |
| interp_model_rd_eval(x, cpi, bsize, orig_dst, plane, plane, |
| &this_rd_stats, 0); |
| } |
| break; |
| case INTERP_SKIP_LUMA_SKIP_CHROMA: |
| // both luma and chroma evaluation is skipped |
| this_rd_stats = *rd_stats; |
| break; |
| case INTERP_EVAL_INVALID: |
| default: assert(0); return 0; |
| } |
| int64_t tmp_rd = |
| RDCOST(x->rdmult, tmp_rs + this_rd_stats.rate, this_rd_stats.dist); |
| |
| if (tmp_rd < *rd) { |
| *rd = tmp_rd; |
| *switchable_rate = tmp_rs; |
| if (skip_pred != interp_search_flags->default_interp_skip_flags) { |
| if (skip_pred == INTERP_EVAL_LUMA_EVAL_CHROMA) { |
| // Overwrite the data as current filter is the best one |
| *rd_stats_luma = this_rd_stats_luma; |
| *rd_stats = this_rd_stats; |
| // As luma MC data is computed, no need to recompute after the search |
| x->recalc_luma_mc_data = 0; |
| } else if (skip_pred == INTERP_SKIP_LUMA_EVAL_CHROMA) { |
| // As luma MC data is not computed, update of luma data can be skipped |
| *rd_stats = this_rd_stats; |
| // As luma MC data is not recomputed and current filter is the best, |
| // indicate the possibility of recomputing MC data |
| // If current buffer contains valid MC data, toggle to indicate that |
| // luma MC data needs to be recomputed |
| x->recalc_luma_mc_data ^= 1; |
| } |
| swap_dst_buf(xd, dst_bufs, num_planes); |
| } |
| return 1; |
| } |
| mbmi->interp_fltr = last_best; |
| return 0; |
| } |
| |
| // Find the best interp filter if dual_interp_filter = 0 |
| static INLINE void find_best_non_dual_interp_filter( |
| MACROBLOCK *const x, const AV1_COMP *const cpi, |
| const TileDataEnc *tile_data, BLOCK_SIZE bsize, |
| const BUFFER_SET *const orig_dst, int64_t *const rd, RD_STATS *rd_stats_y, |
| RD_STATS *rd_stats, int *const switchable_rate, |
| const BUFFER_SET *dst_bufs[2], const int switchable_ctx[2], |
| const int skip_ver, const int skip_hor) { |
| const int skip_pred = (skip_hor & skip_ver); |
| for (int i = EIGHTTAP_REGULAR + 1; i < SWITCHABLE_FILTERS; ++i) { |
| interpolation_filter_rd(x, cpi, tile_data, bsize, orig_dst, rd, rd_stats_y, |
| rd_stats, switchable_rate, dst_bufs, i, |
| switchable_ctx, skip_pred); |
| } |
| } |
| |
| static INLINE void calc_interp_skip_pred_flag(MACROBLOCK *const x, |
| const AV1_COMP *const cpi, |
| int *skip_hor, int *skip_ver) { |
| const AV1_COMMON *cm = &cpi->common; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| MB_MODE_INFO *const mbmi = xd->mi[0]; |
| const int num_planes = av1_num_planes(cm); |
| const int is_compound = has_second_ref(mbmi); |
| assert(is_intrabc_block(mbmi, xd->tree_type) == 0); |
| for (int ref = 0; ref < 1 + is_compound; ++ref) { |
| const struct scale_factors *const sf = |
| get_ref_scale_factors_const(cm, mbmi->ref_frame[ref]); |
| // TODO(any): Refine skip flag calculation considering scaling |
| if (av1_is_scaled(sf)) { |
| *skip_hor = 0; |
| *skip_ver = 0; |
| break; |
| } |
| const MV mv = mbmi->mv[ref].as_mv; |
| int skip_hor_plane = 0; |
| int skip_ver_plane = 0; |
| for (int plane_idx = 0; plane_idx < AOMMAX(1, (num_planes - 1)); |
| ++plane_idx) { |
| struct macroblockd_plane *const pd = &xd->plane[plane_idx]; |
| const int bw = pd->width; |
| const int bh = pd->height; |
| const MV mv_q4 = |
| clamp_mv_to_umv_border_sb(xd, &mv, bw, bh, |
| #if CONFIG_OPTFLOW_REFINEMENT |
| 0, |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| pd->subsampling_x, pd->subsampling_y); |
| const int sub_x = (mv_q4.col & SUBPEL_MASK) << SCALE_EXTRA_BITS; |
| const int sub_y = (mv_q4.row & SUBPEL_MASK) << SCALE_EXTRA_BITS; |
| skip_hor_plane |= ((sub_x == 0) << plane_idx); |
| skip_ver_plane |= ((sub_y == 0) << plane_idx); |
| } |
| *skip_hor &= skip_hor_plane; |
| *skip_ver &= skip_ver_plane; |
| // It is not valid that "luma MV is sub-pel, whereas chroma MV is not" |
| assert(*skip_hor != 2); |
| assert(*skip_ver != 2); |
| } |
| // When compond prediction type is compound segment wedge, luma MC and chroma |
| // MC need to go hand in hand as mask generated during luma MC is reuired for |
| // chroma MC. If skip_hor = 0 and skip_ver = 1, mask used for chroma MC during |
| // vertical filter decision may be incorrect as temporary MC evaluation |
| // overwrites the mask. Make skip_ver as 0 for this case so that mask is |
| // populated during luma MC |
| if (is_compound && mbmi->interinter_comp.type == COMPOUND_DIFFWTD) { |
| assert(mbmi->comp_group_idx == 1); |
| if (*skip_hor == 0 && *skip_ver == 1) *skip_ver = 0; |
| } |
| } |
| |
| /*!\brief AV1 interpolation filter search |
| * |
| * \ingroup inter_mode_search |
| * |
| * \param[in] cpi Top-level encoder structure. |
| * \param[in] tile_data Pointer to struct holding adaptive |
| * data/contexts/models for the tile during |
| * encoding. |
| * \param[in] x Pointer to struc holding all the data for |
| * the current macroblock. |
| * \param[in] bsize Current block size. |
| * \param[in] tmp_dst A temporary prediction buffer to hold a |
| * computed prediction. |
| * \param[in,out] orig_dst A prediction buffer to hold a computed |
| * prediction. This will eventually hold the |
| * final prediction, and the tmp_dst info will |
| * be copied here. |
| * \param[in,out] rd The RD cost associated with the selected |
| * interpolation filter parameters. |
| * \param[in,out] switchable_rate The rate associated with using a SWITCHABLE |
| * filter mode. |
| * \param[in,out] skip_build_pred Indicates whether or not to build the inter |
| * predictor. If this is 0, the inter predictor |
| * has already been built and thus we can avoid |
| * repeating computation. |
| * \param[in] args HandleInterModeArgs struct holding |
| * miscellaneous arguments for inter mode |
| * search. See the documentation for this |
| * struct for a description of each member. |
| * \param[in] ref_best_rd Best RD found so far for this block. |
| * It is used for early termination of this |
| * search if the RD exceeds this value. |
| * |
| * \return Returns INT64_MAX if the filter parameters are invalid and the |
| * current motion mode being tested should be skipped. It returns 0 if the |
| * parameter search is a success. |
| */ |
| int64_t av1_interpolation_filter_search( |
| MACROBLOCK *const x, const AV1_COMP *const cpi, |
| const TileDataEnc *tile_data, BLOCK_SIZE bsize, |
| const BUFFER_SET *const tmp_dst, const BUFFER_SET *const orig_dst, |
| int64_t *const rd, int *const switchable_rate, int *skip_build_pred, |
| HandleInterModeArgs *args, int64_t ref_best_rd) { |
| const AV1_COMMON *cm = &cpi->common; |
| const InterpSearchFlags *interp_search_flags = &cpi->interp_search_flags; |
| const int num_planes = av1_num_planes(cm); |
| MACROBLOCKD *const xd = &x->e_mbd; |
| MB_MODE_INFO *const mbmi = xd->mi[0]; |
| const int need_search = av1_is_interp_needed(cm, xd); |
| #if CONFIG_NEW_REF_SIGNALING || CONFIG_TIP |
| const int ref_frame = COMPACT_INDEX0_NRS(xd->mi[0]->ref_frame[0]); |
| #else |
| const int ref_frame = xd->mi[0]->ref_frame[0]; |
| #endif // CONFIG_NEW_REF_SIGNALING || CONFIG_TIP |
| RD_STATS rd_stats_luma, rd_stats; |
| |
| // Initialization of rd_stats structures with default values |
| av1_init_rd_stats(&rd_stats_luma); |
| av1_init_rd_stats(&rd_stats); |
| |
| int match_found_idx = -1; |
| const InterpFilter assign_filter = cm->features.interp_filter; |
| |
| match_found_idx = av1_find_interp_filter_match( |
| mbmi, cpi, assign_filter, need_search, args->interp_filter_stats, |
| args->interp_filter_stats_idx); |
| |
| if (match_found_idx != -1) { |
| *rd = args->interp_filter_stats[match_found_idx].rd; |
| x->pred_sse[ref_frame] = |
| args->interp_filter_stats[match_found_idx].pred_sse; |
| return 0; |
| } |
| |
| int switchable_ctx[2]; |
| switchable_ctx[0] = av1_get_pred_context_switchable_interp(xd, 0); |
| switchable_ctx[1] = av1_get_pred_context_switchable_interp(xd, 1); |
| #if CONFIG_OPTFLOW_REFINEMENT |
| *switchable_rate = |
| (mbmi->mode >= NEAR_NEARMV_OPTFLOW || use_opfl_refine_all(cm, mbmi)) |
| ? 0 |
| : get_switchable_rate(x, mbmi->interp_fltr, switchable_ctx); |
| #else |
| *switchable_rate = get_switchable_rate(x, mbmi->interp_fltr, switchable_ctx); |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| |
| // Do MC evaluation for default filter_type. |
| // Luma MC |
| interp_model_rd_eval(x, cpi, bsize, orig_dst, AOM_PLANE_Y, AOM_PLANE_Y, |
| &rd_stats_luma, *skip_build_pred); |
| |
| #if CONFIG_COLLECT_RD_STATS == 3 |
| RD_STATS rd_stats_y; |
| av1_pick_recursive_tx_size_type_yrd(cpi, x, &rd_stats_y, bsize, INT64_MAX); |
| PrintPredictionUnitStats(cpi, tile_data, x, &rd_stats_y, bsize); |
| #endif // CONFIG_COLLECT_RD_STATS == 3 |
| // Chroma MC |
| if (num_planes > 1) { |
| interp_model_rd_eval(x, cpi, bsize, orig_dst, AOM_PLANE_U, AOM_PLANE_V, |
| &rd_stats, *skip_build_pred); |
| } |
| *skip_build_pred = 1; |
| |
| av1_merge_rd_stats(&rd_stats, &rd_stats_luma); |
| |
| assert(rd_stats.rate >= 0); |
| |
| *rd = RDCOST(x->rdmult, *switchable_rate + rd_stats.rate, rd_stats.dist); |
| x->pred_sse[ref_frame] = (unsigned int)(rd_stats_luma.sse >> 4); |
| |
| if (assign_filter != SWITCHABLE || match_found_idx != -1) { |
| return 0; |
| } |
| if (!need_search) { |
| #if CONFIG_OPTFLOW_REFINEMENT |
| assert(mbmi->interp_fltr == |
| ((mbmi->mode >= NEAR_NEARMV_OPTFLOW || use_opfl_refine_all(cm, mbmi)) |
| ? MULTITAP_SHARP |
| : EIGHTTAP_REGULAR)); |
| #else |
| assert(mbmi->interp_fltr == EIGHTTAP_REGULAR); |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| return 0; |
| } |
| if (args->modelled_rd != NULL) { |
| #if CONFIG_OPTFLOW_REFINEMENT |
| if (has_second_ref(mbmi) && mbmi->mode < NEAR_NEARMV_OPTFLOW && |
| !use_opfl_refine_all(cm, mbmi)) { |
| #else |
| if (has_second_ref(mbmi)) { |
| #endif // CONFIG_OPTFLOW_REFINEMENT |
| const int ref_mv_idx = mbmi->ref_mv_idx; |
| MV_REFERENCE_FRAME *refs = mbmi->ref_frame; |
| const int mode0 = compound_ref0_mode(mbmi->mode); |
| const int mode1 = compound_ref1_mode(mbmi->mode); |
| const int64_t mrd = AOMMIN(args->modelled_rd[mode0][ref_mv_idx][refs[0]], |
| args->modelled_rd[mode1][ref_mv_idx][refs[1]]); |
| if ((*rd >> 1) > mrd && ref_best_rd < INT64_MAX) { |
| return INT64_MAX; |
| } |
| } |
| } |
| |
| x->recalc_luma_mc_data = 0; |
| // skip_flag=xx (in binary form) |
| // Setting 0th flag corresonds to skipping luma MC and setting 1st bt |
| // corresponds to skipping chroma MC skip_flag=0 corresponds to "Don't skip |
| // luma and chroma MC" Skip flag=1 corresponds to "Skip Luma MC only" |
| // Skip_flag=2 is not a valid case |
| // skip_flag=3 corresponds to "Skip both luma and chroma MC" |
| int skip_hor = interp_search_flags->default_interp_skip_flags; |
| int skip_ver = interp_search_flags->default_interp_skip_flags; |
| calc_interp_skip_pred_flag(x, cpi, &skip_hor, &skip_ver); |
| |
| // do interp_filter search |
| restore_dst_buf(xd, *tmp_dst, num_planes); |
| const BUFFER_SET *dst_bufs[2] = { tmp_dst, orig_dst }; |
| find_best_non_dual_interp_filter( |
| x, cpi, tile_data, bsize, orig_dst, rd, &rd_stats_luma, &rd_stats, |
| switchable_rate, dst_bufs, switchable_ctx, skip_ver, skip_hor); |
| swap_dst_buf(xd, dst_bufs, num_planes); |
| // Recompute final MC data if required |
| if (x->recalc_luma_mc_data == 1) { |
| // Recomputing final luma MC data is required only if the same was skipped |
| // in either of the directions Condition below is necessary, but not |
| // sufficient |
| assert((skip_hor == 1) || (skip_ver == 1)); |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| av1_enc_build_inter_predictor(cm, xd, mi_row, mi_col, orig_dst, bsize, |
| AOM_PLANE_Y, AOM_PLANE_Y); |
| } |
| x->pred_sse[ref_frame] = (unsigned int)(rd_stats_luma.sse >> 4); |
| |
| // save search results |
| if (cpi->sf.interp_sf.use_interp_filter) { |
| assert(match_found_idx == -1); |
| args->interp_filter_stats_idx = save_interp_filter_search_stat( |
| mbmi, *rd, x->pred_sse[ref_frame], args->interp_filter_stats, |
| args->interp_filter_stats_idx); |
| } |
| return 0; |
| } |
