| /* |
| * Copyright (c) 2020, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. 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 www.aomedia.org/license/patent. |
| */ |
| |
| #include "aom_ports/system_state.h" |
| |
| #include "av1/common/reconinter.h" |
| |
| #include "av1/encoder/encodemv.h" |
| #include "av1/encoder/encoder.h" |
| #include "av1/encoder/mcomp.h" |
| #include "av1/encoder/motion_search_facade.h" |
| #include "av1/encoder/partition_strategy.h" |
| #include "av1/encoder/reconinter_enc.h" |
| #include "av1/encoder/tpl_model.h" |
| |
| #define RIGHT_SHIFT_MV(x) (((x) + 3 + ((x) >= 0)) >> 3) |
| |
| typedef struct { |
| FULLPEL_MV fmv; |
| int weight; |
| } cand_mv_t; |
| |
| static int compare_weight(const void *a, const void *b) { |
| const int diff = ((cand_mv_t *)a)->weight - ((cand_mv_t *)b)->weight; |
| if (diff < 0) |
| return 1; |
| else if (diff > 0) |
| return -1; |
| return 0; |
| } |
| |
| // Allow more mesh searches for screen content type on the ARF. |
| static int use_fine_search_interval(const AV1_COMP *const cpi) { |
| return cpi->is_screen_content_type && |
| cpi->gf_group.update_type[cpi->gf_group.index] == ARF_UPDATE && |
| cpi->oxcf.speed <= 2; |
| } |
| |
| void av1_single_motion_search(const AV1_COMP *const cpi, MACROBLOCK *x, |
| BLOCK_SIZE bsize, int ref_idx, int *rate_mv, |
| int search_range, inter_mode_info *mode_info, |
| int_mv *best_mv) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| const AV1_COMMON *cm = &cpi->common; |
| const MotionVectorSearchParams *mv_search_params = &cpi->mv_search_params; |
| const int num_planes = av1_num_planes(cm); |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| struct buf_2d backup_yv12[MAX_MB_PLANE] = { { 0, 0, 0, 0, 0 } }; |
| int bestsme = INT_MAX; |
| const int ref = mbmi->ref_frame[ref_idx]; |
| const YV12_BUFFER_CONFIG *scaled_ref_frame = |
| av1_get_scaled_ref_frame(cpi, ref); |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| const MvCosts *mv_costs = &x->mv_costs; |
| |
| if (scaled_ref_frame) { |
| // Swap out the reference frame for a version that's been scaled to |
| // match the resolution of the current frame, allowing the existing |
| // full-pixel motion search code to be used without additional |
| // modifications. |
| for (int i = 0; i < num_planes; i++) { |
| backup_yv12[i] = xd->plane[i].pre[ref_idx]; |
| } |
| av1_setup_pre_planes(xd, ref_idx, scaled_ref_frame, mi_row, mi_col, NULL, |
| num_planes); |
| } |
| |
| // Work out the size of the first step in the mv step search. |
| // 0 here is maximum length first step. 1 is AOMMAX >> 1 etc. |
| int step_param; |
| if (cpi->sf.mv_sf.auto_mv_step_size && cm->show_frame) { |
| // Take the weighted average of the step_params based on the last frame's |
| // max mv magnitude and that based on the best ref mvs of the current |
| // block for the given reference. |
| step_param = (av1_init_search_range(x->max_mv_context[ref]) + |
| mv_search_params->mv_step_param) / |
| 2; |
| } else { |
| step_param = mv_search_params->mv_step_param; |
| } |
| |
| const MV ref_mv = av1_get_ref_mv(x, ref_idx).as_mv; |
| FULLPEL_MV start_mv; |
| if (mbmi->motion_mode != SIMPLE_TRANSLATION) |
| start_mv = get_fullmv_from_mv(&mbmi->mv[0].as_mv); |
| else |
| start_mv = get_fullmv_from_mv(&ref_mv); |
| |
| // cand stores start_mv and all possible MVs in a SB. |
| cand_mv_t cand[MAX_TPL_BLK_IN_SB * MAX_TPL_BLK_IN_SB + 1] = { { { 0, 0 }, |
| 0 } }; |
| cand[0].fmv = start_mv; |
| int cnt = 1; |
| int total_weight = 0; |
| |
| if (!cpi->sf.mv_sf.full_pixel_search_level && |
| mbmi->motion_mode == SIMPLE_TRANSLATION) { |
| SuperBlockEnc *sb_enc = &x->sb_enc; |
| if (sb_enc->tpl_data_count) { |
| const BLOCK_SIZE tpl_bsize = |
| convert_length_to_bsize(cpi->tpl_data.tpl_bsize_1d); |
| const int tplw = mi_size_wide[tpl_bsize]; |
| const int tplh = mi_size_high[tpl_bsize]; |
| const int nw = mi_size_wide[bsize] / tplw; |
| const int nh = mi_size_high[bsize] / tplh; |
| |
| if (nw >= 1 && nh >= 1) { |
| const int of_h = mi_row % mi_size_high[cm->seq_params.sb_size]; |
| const int of_w = mi_col % mi_size_wide[cm->seq_params.sb_size]; |
| const int start = of_h / tplh * sb_enc->tpl_stride + of_w / tplw; |
| int valid = 1; |
| |
| // Assign large weight to start_mv, so it is always tested. |
| cand[0].weight = nw * nh; |
| |
| for (int k = 0; k < nh; k++) { |
| for (int l = 0; l < nw; l++) { |
| const int_mv mv = sb_enc->tpl_mv[start + k * sb_enc->tpl_stride + l] |
| [ref - LAST_FRAME]; |
| if (mv.as_int == INVALID_MV) { |
| valid = 0; |
| break; |
| } |
| |
| const FULLPEL_MV fmv = { GET_MV_RAWPEL(mv.as_mv.row), |
| GET_MV_RAWPEL(mv.as_mv.col) }; |
| int unique = 1; |
| for (int m = 0; m < cnt; m++) { |
| if (RIGHT_SHIFT_MV(fmv.row) == RIGHT_SHIFT_MV(cand[m].fmv.row) && |
| RIGHT_SHIFT_MV(fmv.col) == RIGHT_SHIFT_MV(cand[m].fmv.col)) { |
| unique = 0; |
| cand[m].weight++; |
| break; |
| } |
| } |
| |
| if (unique) { |
| cand[cnt].fmv = fmv; |
| cand[cnt].weight = 1; |
| cnt++; |
| } |
| } |
| if (!valid) break; |
| } |
| |
| if (valid) { |
| total_weight = 2 * nh * nw; |
| if (cnt > 2) qsort(cand, cnt, sizeof(cand[0]), &compare_weight); |
| } |
| } |
| } |
| } |
| |
| // Further reduce the search range. |
| if (search_range < INT_MAX) { |
| const search_site_config *search_site_cfg = |
| &mv_search_params |
| ->search_site_cfg[SS_CFG_SRC][cpi->sf.mv_sf.search_method]; |
| // Max step_param is search_site_cfg->num_search_steps. |
| if (search_range < 1) { |
| step_param = search_site_cfg->num_search_steps; |
| } else { |
| while (search_site_cfg->radius[search_site_cfg->num_search_steps - |
| step_param - 1] > (search_range << 1) && |
| search_site_cfg->num_search_steps - step_param - 1 > 0) |
| step_param++; |
| } |
| } |
| |
| int cost_list[5]; |
| int_mv second_best_mv; |
| best_mv->as_int = second_best_mv.as_int = INVALID_MV; |
| |
| // Allow more mesh searches for screen content type on the ARF. |
| const int fine_search_interval = use_fine_search_interval(cpi); |
| const search_site_config *src_search_sites = |
| mv_search_params->search_site_cfg[SS_CFG_SRC]; |
| FULLPEL_MOTION_SEARCH_PARAMS full_ms_params; |
| av1_make_default_fullpel_ms_params(&full_ms_params, cpi, x, bsize, &ref_mv, |
| src_search_sites, fine_search_interval); |
| |
| switch (mbmi->motion_mode) { |
| case SIMPLE_TRANSLATION: { |
| int sum_weight = 0; |
| |
| for (int m = 0; m < cnt; m++) { |
| FULLPEL_MV smv = cand[m].fmv; |
| FULLPEL_MV this_best_mv, this_second_best_mv; |
| |
| int thissme = av1_full_pixel_search( |
| smv, &full_ms_params, step_param, cond_cost_list(cpi, cost_list), |
| &this_best_mv, &this_second_best_mv); |
| |
| if (thissme < bestsme) { |
| bestsme = thissme; |
| best_mv->as_fullmv = this_best_mv; |
| second_best_mv.as_fullmv = this_second_best_mv; |
| } |
| |
| sum_weight += cand[m].weight; |
| if (m >= 2 || 4 * sum_weight > 3 * total_weight) break; |
| } |
| } break; |
| case OBMC_CAUSAL: |
| bestsme = av1_obmc_full_pixel_search(start_mv, &full_ms_params, |
| step_param, &best_mv->as_fullmv); |
| break; |
| default: assert(0 && "Invalid motion mode!\n"); |
| } |
| |
| if (scaled_ref_frame) { |
| // Swap back the original buffers for subpel motion search. |
| for (int i = 0; i < num_planes; i++) { |
| xd->plane[i].pre[ref_idx] = backup_yv12[i]; |
| } |
| } |
| |
| // Terminate search with the current ref_idx if we have already encountered |
| // another ref_mv in the drl such that: |
| // 1. The other drl has the same fullpel_mv during the SIMPLE_TRANSLATION |
| // search process as the current fullpel_mv. |
| // 2. The rate needed to encode the current fullpel_mv is larger than that |
| // for the other ref_mv. |
| if (cpi->sf.inter_sf.skip_repeated_full_newmv && |
| mbmi->motion_mode == SIMPLE_TRANSLATION && |
| best_mv->as_int != INVALID_MV) { |
| int_mv this_mv; |
| this_mv.as_mv = get_mv_from_fullmv(&best_mv->as_fullmv); |
| const int ref_mv_idx = mbmi->ref_mv_idx; |
| const int this_mv_rate = |
| av1_mv_bit_cost(&this_mv.as_mv, &ref_mv, mv_costs->nmv_joint_cost, |
| mv_costs->mv_cost_stack, MV_COST_WEIGHT); |
| mode_info[ref_mv_idx].full_search_mv.as_int = this_mv.as_int; |
| mode_info[ref_mv_idx].full_mv_rate = this_mv_rate; |
| |
| for (int prev_ref_idx = 0; prev_ref_idx < ref_mv_idx; ++prev_ref_idx) { |
| // Check if the motion search result same as previous results |
| if (this_mv.as_int == mode_info[prev_ref_idx].full_search_mv.as_int) { |
| // Compare the rate cost |
| const int prev_rate_cost = mode_info[prev_ref_idx].full_mv_rate + |
| mode_info[prev_ref_idx].drl_cost; |
| const int this_rate_cost = |
| this_mv_rate + mode_info[ref_mv_idx].drl_cost; |
| |
| if (prev_rate_cost <= this_rate_cost) { |
| // If the current rate_cost is worse than the previous rate_cost, then |
| // we terminate the search. Since av1_single_motion_search is only |
| // called by handle_new_mv in SIMPLE_TRANSLATION mode, we set the |
| // best_mv to INVALID mv to signal that we wish to terminate search |
| // for the current mode. |
| best_mv->as_int = INVALID_MV; |
| return; |
| } |
| } |
| } |
| } |
| |
| if (cpi->common.features.cur_frame_force_integer_mv) { |
| convert_fullmv_to_mv(best_mv); |
| } |
| |
| const int use_fractional_mv = |
| bestsme < INT_MAX && cpi->common.features.cur_frame_force_integer_mv == 0; |
| if (use_fractional_mv) { |
| int_mv fractional_ms_list[3]; |
| av1_set_fractional_mv(fractional_ms_list); |
| int dis; /* TODO: use dis in distortion calculation later. */ |
| |
| SUBPEL_MOTION_SEARCH_PARAMS ms_params; |
| av1_make_default_subpel_ms_params(&ms_params, cpi, x, bsize, &ref_mv, |
| cost_list); |
| MV subpel_start_mv = get_mv_from_fullmv(&best_mv->as_fullmv); |
| |
| switch (mbmi->motion_mode) { |
| case SIMPLE_TRANSLATION: |
| if (cpi->sf.mv_sf.use_accurate_subpel_search) { |
| const int try_second = second_best_mv.as_int != INVALID_MV && |
| second_best_mv.as_int != best_mv->as_int; |
| const int best_mv_var = mv_search_params->find_fractional_mv_step( |
| xd, cm, &ms_params, subpel_start_mv, &best_mv->as_mv, &dis, |
| &x->pred_sse[ref], fractional_ms_list); |
| |
| if (try_second) { |
| MV this_best_mv; |
| subpel_start_mv = get_mv_from_fullmv(&second_best_mv.as_fullmv); |
| if (av1_is_subpelmv_in_range(&ms_params.mv_limits, |
| subpel_start_mv)) { |
| const int this_var = mv_search_params->find_fractional_mv_step( |
| xd, cm, &ms_params, subpel_start_mv, &this_best_mv, &dis, |
| &x->pred_sse[ref], fractional_ms_list); |
| if (this_var < best_mv_var) best_mv->as_mv = this_best_mv; |
| } |
| } |
| } else { |
| mv_search_params->find_fractional_mv_step( |
| xd, cm, &ms_params, subpel_start_mv, &best_mv->as_mv, &dis, |
| &x->pred_sse[ref], NULL); |
| } |
| break; |
| case OBMC_CAUSAL: |
| av1_find_best_obmc_sub_pixel_tree_up(xd, cm, &ms_params, |
| subpel_start_mv, &best_mv->as_mv, |
| &dis, &x->pred_sse[ref], NULL); |
| break; |
| default: assert(0 && "Invalid motion mode!\n"); |
| } |
| } |
| *rate_mv = av1_mv_bit_cost(&best_mv->as_mv, &ref_mv, mv_costs->nmv_joint_cost, |
| mv_costs->mv_cost_stack, MV_COST_WEIGHT); |
| } |
| |
| void av1_joint_motion_search(const AV1_COMP *cpi, MACROBLOCK *x, |
| BLOCK_SIZE bsize, int_mv *cur_mv, |
| const uint8_t *mask, int mask_stride, |
| int *rate_mv) { |
| const AV1_COMMON *const cm = &cpi->common; |
| const int num_planes = av1_num_planes(cm); |
| const int pw = block_size_wide[bsize]; |
| const int ph = block_size_high[bsize]; |
| const int plane = 0; |
| MACROBLOCKD *xd = &x->e_mbd; |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| // This function should only ever be called for compound modes |
| assert(has_second_ref(mbmi)); |
| const int_mv init_mv[2] = { cur_mv[0], cur_mv[1] }; |
| const int refs[2] = { mbmi->ref_frame[0], mbmi->ref_frame[1] }; |
| const MvCosts *mv_costs = &x->mv_costs; |
| int_mv ref_mv[2]; |
| int ite, ref; |
| |
| // Get the prediction block from the 'other' reference frame. |
| const int_interpfilters interp_filters = |
| av1_broadcast_interp_filter(EIGHTTAP_REGULAR); |
| |
| InterPredParams inter_pred_params; |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| |
| // Do joint motion search in compound mode to get more accurate mv. |
| struct buf_2d backup_yv12[2][MAX_MB_PLANE]; |
| int last_besterr[2] = { INT_MAX, INT_MAX }; |
| const YV12_BUFFER_CONFIG *const scaled_ref_frame[2] = { |
| av1_get_scaled_ref_frame(cpi, refs[0]), |
| av1_get_scaled_ref_frame(cpi, refs[1]) |
| }; |
| |
| // Prediction buffer from second frame. |
| DECLARE_ALIGNED(16, uint8_t, second_pred16[MAX_SB_SQUARE * sizeof(uint16_t)]); |
| uint8_t *second_pred = get_buf_by_bd(xd, second_pred16); |
| int_mv best_mv; |
| |
| // Allow joint search multiple times iteratively for each reference frame |
| // and break out of the search loop if it couldn't find a better mv. |
| for (ite = 0; ite < 4; ite++) { |
| struct buf_2d ref_yv12[2]; |
| int bestsme = INT_MAX; |
| int id = ite % 2; // Even iterations search in the first reference frame, |
| // odd iterations search in the second. The predictor |
| // found for the 'other' reference frame is factored in. |
| if (ite >= 2 && cur_mv[!id].as_int == init_mv[!id].as_int) { |
| if (cur_mv[id].as_int == init_mv[id].as_int) { |
| break; |
| } else { |
| int_mv cur_int_mv, init_int_mv; |
| cur_int_mv.as_mv.col = cur_mv[id].as_mv.col >> 3; |
| cur_int_mv.as_mv.row = cur_mv[id].as_mv.row >> 3; |
| init_int_mv.as_mv.row = init_mv[id].as_mv.row >> 3; |
| init_int_mv.as_mv.col = init_mv[id].as_mv.col >> 3; |
| if (cur_int_mv.as_int == init_int_mv.as_int) { |
| break; |
| } |
| } |
| } |
| for (ref = 0; ref < 2; ++ref) { |
| ref_mv[ref] = av1_get_ref_mv(x, ref); |
| // 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. |
| if (scaled_ref_frame[ref]) { |
| int i; |
| for (i = 0; i < num_planes; i++) |
| backup_yv12[ref][i] = xd->plane[i].pre[ref]; |
| av1_setup_pre_planes(xd, ref, scaled_ref_frame[ref], mi_row, mi_col, |
| NULL, num_planes); |
| } |
| } |
| |
| assert(IMPLIES(scaled_ref_frame[0] != NULL, |
| cm->width == scaled_ref_frame[0]->y_crop_width && |
| cm->height == scaled_ref_frame[0]->y_crop_height)); |
| assert(IMPLIES(scaled_ref_frame[1] != NULL, |
| cm->width == scaled_ref_frame[1]->y_crop_width && |
| cm->height == scaled_ref_frame[1]->y_crop_height)); |
| |
| // Initialize based on (possibly scaled) prediction buffers. |
| ref_yv12[0] = xd->plane[plane].pre[0]; |
| ref_yv12[1] = xd->plane[plane].pre[1]; |
| |
| av1_init_inter_params(&inter_pred_params, pw, ph, mi_row * MI_SIZE, |
| mi_col * MI_SIZE, 0, 0, xd->bd, is_cur_buf_hbd(xd), 0, |
| &cm->sf_identity, &ref_yv12[!id], interp_filters); |
| inter_pred_params.conv_params = get_conv_params(0, 0, xd->bd); |
| |
| // Since we have scaled the reference frames to match the size of the |
| // current frame we must use a unit scaling factor during mode selection. |
| av1_enc_build_one_inter_predictor(second_pred, pw, &cur_mv[!id].as_mv, |
| &inter_pred_params); |
| |
| // Do full-pixel compound motion search on the current reference frame. |
| if (id) xd->plane[plane].pre[0] = ref_yv12[id]; |
| |
| // Make motion search params |
| FULLPEL_MOTION_SEARCH_PARAMS full_ms_params; |
| av1_make_default_fullpel_ms_params(&full_ms_params, cpi, x, bsize, |
| &ref_mv[id].as_mv, NULL, |
| /*fine_search_interval=*/0); |
| |
| av1_set_ms_compound_refs(&full_ms_params.ms_buffers, second_pred, mask, |
| mask_stride, id); |
| |
| // Use the mv result from the single mode as mv predictor. |
| const FULLPEL_MV start_fullmv = get_fullmv_from_mv(&cur_mv[id].as_mv); |
| |
| // Small-range full-pixel motion search. |
| bestsme = av1_refining_search_8p_c(&full_ms_params, start_fullmv, |
| &best_mv.as_fullmv); |
| |
| if (bestsme < INT_MAX) { |
| bestsme = av1_get_mvpred_compound_var( |
| &full_ms_params.mv_cost_params, best_mv.as_fullmv, second_pred, mask, |
| mask_stride, id, &cpi->fn_ptr[bsize], &x->plane[0].src, |
| &ref_yv12[id]); |
| } |
| |
| // Restore the pointer to the first (possibly scaled) prediction buffer. |
| if (id) xd->plane[plane].pre[0] = ref_yv12[0]; |
| |
| for (ref = 0; ref < 2; ++ref) { |
| if (scaled_ref_frame[ref]) { |
| // Swap back the original buffers for subpel motion search. |
| for (int i = 0; i < num_planes; i++) { |
| xd->plane[i].pre[ref] = backup_yv12[ref][i]; |
| } |
| // Re-initialize based on unscaled prediction buffers. |
| ref_yv12[ref] = xd->plane[plane].pre[ref]; |
| } |
| } |
| |
| // Do sub-pixel compound motion search on the current reference frame. |
| if (id) xd->plane[plane].pre[0] = ref_yv12[id]; |
| |
| if (cpi->common.features.cur_frame_force_integer_mv) { |
| convert_fullmv_to_mv(&best_mv); |
| } |
| if (bestsme < INT_MAX && |
| cpi->common.features.cur_frame_force_integer_mv == 0) { |
| int dis; /* TODO: use dis in distortion calculation later. */ |
| unsigned int sse; |
| SUBPEL_MOTION_SEARCH_PARAMS ms_params; |
| av1_make_default_subpel_ms_params(&ms_params, cpi, x, bsize, |
| &ref_mv[id].as_mv, NULL); |
| av1_set_ms_compound_refs(&ms_params.var_params.ms_buffers, second_pred, |
| mask, mask_stride, id); |
| ms_params.forced_stop = EIGHTH_PEL; |
| MV start_mv = get_mv_from_fullmv(&best_mv.as_fullmv); |
| bestsme = cpi->mv_search_params.find_fractional_mv_step( |
| xd, cm, &ms_params, start_mv, &best_mv.as_mv, &dis, &sse, NULL); |
| } |
| |
| // Restore the pointer to the first prediction buffer. |
| if (id) xd->plane[plane].pre[0] = ref_yv12[0]; |
| if (bestsme < last_besterr[id]) { |
| cur_mv[id] = best_mv; |
| last_besterr[id] = bestsme; |
| } else { |
| break; |
| } |
| } |
| |
| *rate_mv = 0; |
| |
| for (ref = 0; ref < 2; ++ref) { |
| const int_mv curr_ref_mv = av1_get_ref_mv(x, ref); |
| *rate_mv += av1_mv_bit_cost(&cur_mv[ref].as_mv, &curr_ref_mv.as_mv, |
| mv_costs->nmv_joint_cost, |
| mv_costs->mv_cost_stack, MV_COST_WEIGHT); |
| } |
| } |
| |
| // Search for the best mv for one component of a compound, |
| // given that the other component is fixed. |
| void av1_compound_single_motion_search(const AV1_COMP *cpi, MACROBLOCK *x, |
| BLOCK_SIZE bsize, MV *this_mv, |
| const uint8_t *second_pred, |
| const uint8_t *mask, int mask_stride, |
| int *rate_mv, int ref_idx) { |
| const AV1_COMMON *const cm = &cpi->common; |
| const int num_planes = av1_num_planes(cm); |
| MACROBLOCKD *xd = &x->e_mbd; |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| const int ref = mbmi->ref_frame[ref_idx]; |
| const int_mv ref_mv = av1_get_ref_mv(x, ref_idx); |
| struct macroblockd_plane *const pd = &xd->plane[0]; |
| const MvCosts *mv_costs = &x->mv_costs; |
| |
| struct buf_2d backup_yv12[MAX_MB_PLANE]; |
| const YV12_BUFFER_CONFIG *const scaled_ref_frame = |
| av1_get_scaled_ref_frame(cpi, ref); |
| |
| // Check that this is either an interinter or an interintra block |
| assert(has_second_ref(mbmi) || (ref_idx == 0 && is_interintra_mode(mbmi))); |
| |
| // Store the first prediction buffer. |
| struct buf_2d orig_yv12; |
| struct buf_2d ref_yv12 = pd->pre[ref_idx]; |
| if (ref_idx) { |
| orig_yv12 = pd->pre[0]; |
| pd->pre[0] = pd->pre[ref_idx]; |
| } |
| |
| if (scaled_ref_frame) { |
| // Swap out the reference frame for a version that's been scaled to |
| // match the resolution of the current frame, allowing the existing |
| // full-pixel motion search code to be used without additional |
| // modifications. |
| for (int i = 0; i < num_planes; i++) { |
| backup_yv12[i] = xd->plane[i].pre[ref_idx]; |
| } |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| av1_setup_pre_planes(xd, ref_idx, scaled_ref_frame, mi_row, mi_col, NULL, |
| num_planes); |
| } |
| |
| int bestsme = INT_MAX; |
| int_mv best_mv; |
| |
| // Make motion search params |
| FULLPEL_MOTION_SEARCH_PARAMS full_ms_params; |
| av1_make_default_fullpel_ms_params(&full_ms_params, cpi, x, bsize, |
| &ref_mv.as_mv, NULL, |
| /*fine_search_interval=*/0); |
| |
| av1_set_ms_compound_refs(&full_ms_params.ms_buffers, second_pred, mask, |
| mask_stride, ref_idx); |
| |
| // Use the mv result from the single mode as mv predictor. |
| const FULLPEL_MV start_fullmv = get_fullmv_from_mv(this_mv); |
| |
| // Small-range full-pixel motion search. |
| bestsme = av1_refining_search_8p_c(&full_ms_params, start_fullmv, |
| &best_mv.as_fullmv); |
| |
| if (bestsme < INT_MAX) { |
| bestsme = av1_get_mvpred_compound_var( |
| &full_ms_params.mv_cost_params, best_mv.as_fullmv, second_pred, mask, |
| mask_stride, ref_idx, &cpi->fn_ptr[bsize], &x->plane[0].src, &ref_yv12); |
| } |
| |
| if (scaled_ref_frame) { |
| // Swap back the original buffers for subpel motion search. |
| for (int i = 0; i < num_planes; i++) { |
| xd->plane[i].pre[ref_idx] = backup_yv12[i]; |
| } |
| } |
| |
| if (cpi->common.features.cur_frame_force_integer_mv) { |
| convert_fullmv_to_mv(&best_mv); |
| } |
| const int use_fractional_mv = |
| bestsme < INT_MAX && cpi->common.features.cur_frame_force_integer_mv == 0; |
| if (use_fractional_mv) { |
| int dis; /* TODO: use dis in distortion calculation later. */ |
| unsigned int sse; |
| SUBPEL_MOTION_SEARCH_PARAMS ms_params; |
| av1_make_default_subpel_ms_params(&ms_params, cpi, x, bsize, &ref_mv.as_mv, |
| NULL); |
| av1_set_ms_compound_refs(&ms_params.var_params.ms_buffers, second_pred, |
| mask, mask_stride, ref_idx); |
| ms_params.forced_stop = EIGHTH_PEL; |
| MV start_mv = get_mv_from_fullmv(&best_mv.as_fullmv); |
| bestsme = cpi->mv_search_params.find_fractional_mv_step( |
| xd, cm, &ms_params, start_mv, &best_mv.as_mv, &dis, &sse, NULL); |
| } |
| |
| // Restore the pointer to the first unscaled prediction buffer. |
| if (ref_idx) pd->pre[0] = orig_yv12; |
| |
| if (bestsme < INT_MAX) *this_mv = best_mv.as_mv; |
| |
| *rate_mv = 0; |
| |
| *rate_mv += av1_mv_bit_cost(this_mv, &ref_mv.as_mv, mv_costs->nmv_joint_cost, |
| mv_costs->mv_cost_stack, MV_COST_WEIGHT); |
| } |
| |
| static AOM_INLINE void build_second_inter_pred(const AV1_COMP *cpi, |
| MACROBLOCK *x, BLOCK_SIZE bsize, |
| const MV *other_mv, int ref_idx, |
| uint8_t *second_pred) { |
| const AV1_COMMON *const cm = &cpi->common; |
| const int pw = block_size_wide[bsize]; |
| const int ph = block_size_high[bsize]; |
| MACROBLOCKD *xd = &x->e_mbd; |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| struct macroblockd_plane *const pd = &xd->plane[0]; |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| const int p_col = ((mi_col * MI_SIZE) >> pd->subsampling_x); |
| const int p_row = ((mi_row * MI_SIZE) >> pd->subsampling_y); |
| |
| // This function should only ever be called for compound modes |
| assert(has_second_ref(mbmi)); |
| |
| const int plane = 0; |
| struct buf_2d ref_yv12 = xd->plane[plane].pre[!ref_idx]; |
| |
| struct scale_factors sf; |
| av1_setup_scale_factors_for_frame(&sf, ref_yv12.width, ref_yv12.height, |
| cm->width, cm->height); |
| |
| InterPredParams inter_pred_params; |
| |
| av1_init_inter_params(&inter_pred_params, pw, ph, p_row, p_col, |
| pd->subsampling_x, pd->subsampling_y, xd->bd, |
| is_cur_buf_hbd(xd), 0, &sf, &ref_yv12, |
| mbmi->interp_filters); |
| inter_pred_params.conv_params = get_conv_params(0, plane, xd->bd); |
| |
| // Get the prediction block from the 'other' reference frame. |
| av1_enc_build_one_inter_predictor(second_pred, pw, other_mv, |
| &inter_pred_params); |
| } |
| |
| // Wrapper for av1_compound_single_motion_search, for the common case |
| // where the second prediction is also an inter mode. |
| void av1_compound_single_motion_search_interinter( |
| const AV1_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int_mv *cur_mv, |
| const uint8_t *mask, int mask_stride, int *rate_mv, int ref_idx) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| // This function should only ever be called for compound modes |
| assert(has_second_ref(xd->mi[0])); |
| |
| // Prediction buffer from second frame. |
| DECLARE_ALIGNED(16, uint16_t, second_pred_alloc_16[MAX_SB_SQUARE]); |
| uint8_t *second_pred; |
| if (is_cur_buf_hbd(xd)) |
| second_pred = CONVERT_TO_BYTEPTR(second_pred_alloc_16); |
| else |
| second_pred = (uint8_t *)second_pred_alloc_16; |
| |
| MV *this_mv = &cur_mv[ref_idx].as_mv; |
| const MV *other_mv = &cur_mv[!ref_idx].as_mv; |
| build_second_inter_pred(cpi, x, bsize, other_mv, ref_idx, second_pred); |
| av1_compound_single_motion_search(cpi, x, bsize, this_mv, second_pred, mask, |
| mask_stride, rate_mv, ref_idx); |
| } |
| |
| static AOM_INLINE void do_masked_motion_search_indexed( |
| const AV1_COMP *const cpi, MACROBLOCK *x, const int_mv *const cur_mv, |
| const INTERINTER_COMPOUND_DATA *const comp_data, BLOCK_SIZE bsize, |
| int_mv *tmp_mv, int *rate_mv, int which) { |
| // NOTE: which values: 0 - 0 only, 1 - 1 only, 2 - both |
| MACROBLOCKD *xd = &x->e_mbd; |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| BLOCK_SIZE sb_type = mbmi->sb_type; |
| const uint8_t *mask; |
| const int mask_stride = block_size_wide[bsize]; |
| |
| mask = av1_get_compound_type_mask(comp_data, sb_type); |
| |
| tmp_mv[0].as_int = cur_mv[0].as_int; |
| tmp_mv[1].as_int = cur_mv[1].as_int; |
| if (which == 0 || which == 1) { |
| av1_compound_single_motion_search_interinter(cpi, x, bsize, tmp_mv, mask, |
| mask_stride, rate_mv, which); |
| } else if (which == 2) { |
| av1_joint_motion_search(cpi, x, bsize, tmp_mv, mask, mask_stride, rate_mv); |
| } |
| } |
| |
| int av1_interinter_compound_motion_search(const AV1_COMP *const cpi, |
| MACROBLOCK *x, |
| const int_mv *const cur_mv, |
| const BLOCK_SIZE bsize, |
| const PREDICTION_MODE this_mode) { |
| MACROBLOCKD *const xd = &x->e_mbd; |
| MB_MODE_INFO *const mbmi = xd->mi[0]; |
| int_mv tmp_mv[2]; |
| int tmp_rate_mv = 0; |
| mbmi->interinter_comp.seg_mask = xd->seg_mask; |
| const INTERINTER_COMPOUND_DATA *compound_data = &mbmi->interinter_comp; |
| |
| if (this_mode == NEW_NEWMV) { |
| do_masked_motion_search_indexed(cpi, x, cur_mv, compound_data, bsize, |
| tmp_mv, &tmp_rate_mv, 2); |
| mbmi->mv[0].as_int = tmp_mv[0].as_int; |
| mbmi->mv[1].as_int = tmp_mv[1].as_int; |
| } else if (this_mode >= NEAREST_NEWMV && this_mode <= NEW_NEARMV) { |
| // which = 1 if this_mode == NEAREST_NEWMV || this_mode == NEAR_NEWMV |
| // which = 0 if this_mode == NEW_NEARESTMV || this_mode == NEW_NEARMV |
| int which = (NEWMV == compound_ref1_mode(this_mode)); |
| do_masked_motion_search_indexed(cpi, x, cur_mv, compound_data, bsize, |
| tmp_mv, &tmp_rate_mv, which); |
| mbmi->mv[which].as_int = tmp_mv[which].as_int; |
| } |
| return tmp_rate_mv; |
| } |
| |
| int_mv av1_simple_motion_search(AV1_COMP *const cpi, MACROBLOCK *x, int mi_row, |
| int mi_col, BLOCK_SIZE bsize, int ref, |
| FULLPEL_MV start_mv, int num_planes, |
| int use_subpixel) { |
| assert(num_planes == 1 && |
| "Currently simple_motion_search only supports luma plane"); |
| assert(!frame_is_intra_only(&cpi->common) && |
| "Simple motion search only enabled for non-key frames"); |
| AV1_COMMON *const cm = &cpi->common; |
| MACROBLOCKD *xd = &x->e_mbd; |
| |
| set_offsets_for_motion_search(cpi, x, mi_row, mi_col, bsize); |
| |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| mbmi->sb_type = bsize; |
| mbmi->ref_frame[0] = ref; |
| mbmi->ref_frame[1] = NONE_FRAME; |
| mbmi->motion_mode = SIMPLE_TRANSLATION; |
| mbmi->interp_filters = av1_broadcast_interp_filter(EIGHTTAP_REGULAR); |
| |
| const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_yv12_buf(cm, ref); |
| const YV12_BUFFER_CONFIG *scaled_ref_frame = |
| av1_get_scaled_ref_frame(cpi, ref); |
| struct buf_2d backup_yv12; |
| // ref_mv is used to calculate the cost of the motion vector |
| const MV ref_mv = kZeroMv; |
| const int step_param = |
| AOMMIN(cpi->mv_search_params.mv_step_param + |
| cpi->sf.part_sf.simple_motion_search_reduce_search_steps, |
| MAX_MVSEARCH_STEPS - 2); |
| const search_site_config *src_search_sites = |
| cpi->mv_search_params.search_site_cfg[SS_CFG_SRC]; |
| int cost_list[5]; |
| const int ref_idx = 0; |
| int var; |
| int_mv best_mv; |
| |
| av1_setup_pre_planes(xd, ref_idx, yv12, mi_row, mi_col, |
| get_ref_scale_factors(cm, ref), num_planes); |
| set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); |
| if (scaled_ref_frame) { |
| backup_yv12 = xd->plane[AOM_PLANE_Y].pre[ref_idx]; |
| av1_setup_pre_planes(xd, ref_idx, scaled_ref_frame, mi_row, mi_col, NULL, |
| num_planes); |
| } |
| |
| // Allow more mesh searches for screen content type on the ARF. |
| const int fine_search_interval = use_fine_search_interval(cpi); |
| FULLPEL_MOTION_SEARCH_PARAMS full_ms_params; |
| av1_make_default_fullpel_ms_params(&full_ms_params, cpi, x, bsize, &ref_mv, |
| src_search_sites, fine_search_interval); |
| |
| var = av1_full_pixel_search(start_mv, &full_ms_params, step_param, |
| cond_cost_list(cpi, cost_list), |
| &best_mv.as_fullmv, NULL); |
| |
| const int use_subpel_search = |
| var < INT_MAX && !cpi->common.features.cur_frame_force_integer_mv && |
| use_subpixel; |
| if (scaled_ref_frame) { |
| xd->plane[AOM_PLANE_Y].pre[ref_idx] = backup_yv12; |
| } |
| if (use_subpel_search) { |
| int not_used = 0; |
| |
| SUBPEL_MOTION_SEARCH_PARAMS ms_params; |
| av1_make_default_subpel_ms_params(&ms_params, cpi, x, bsize, &ref_mv, |
| cost_list); |
| // TODO(yunqing): integrate this into av1_make_default_subpel_ms_params(). |
| ms_params.forced_stop = cpi->sf.mv_sf.simple_motion_subpel_force_stop; |
| |
| MV subpel_start_mv = get_mv_from_fullmv(&best_mv.as_fullmv); |
| |
| cpi->mv_search_params.find_fractional_mv_step( |
| xd, cm, &ms_params, subpel_start_mv, &best_mv.as_mv, ¬_used, |
| &x->pred_sse[ref], NULL); |
| } else { |
| // Manually convert from units of pixel to 1/8-pixels if we are not doing |
| // subpel search |
| convert_fullmv_to_mv(&best_mv); |
| } |
| |
| mbmi->mv[0] = best_mv; |
| |
| // Get a copy of the prediction output |
| av1_enc_build_inter_predictor(cm, xd, mi_row, mi_col, NULL, bsize, |
| AOM_PLANE_Y, AOM_PLANE_Y); |
| |
| aom_clear_system_state(); |
| |
| if (scaled_ref_frame) { |
| xd->plane[AOM_PLANE_Y].pre[ref_idx] = backup_yv12; |
| } |
| |
| return best_mv; |
| } |
| |
| int_mv av1_simple_motion_sse_var(AV1_COMP *cpi, MACROBLOCK *x, int mi_row, |
| int mi_col, BLOCK_SIZE bsize, |
| const FULLPEL_MV start_mv, int use_subpixel, |
| unsigned int *sse, unsigned int *var) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| const MV_REFERENCE_FRAME ref = |
| cpi->rc.is_src_frame_alt_ref ? ALTREF_FRAME : LAST_FRAME; |
| |
| int_mv best_mv = av1_simple_motion_search(cpi, x, mi_row, mi_col, bsize, ref, |
| start_mv, 1, use_subpixel); |
| |
| const uint8_t *src = x->plane[0].src.buf; |
| const int src_stride = x->plane[0].src.stride; |
| const uint8_t *dst = xd->plane[0].dst.buf; |
| const int dst_stride = xd->plane[0].dst.stride; |
| |
| *var = cpi->fn_ptr[bsize].vf(src, src_stride, dst, dst_stride, sse); |
| |
| return best_mv; |
| } |
