/* * Copyright (c) 2019, 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 "config/aom_config.h" #include "av1/encoder/encodemv.h" #if !CONFIG_REALTIME_ONLY #include "av1/encoder/misc_model_weights.h" #endif // !CONFIG_REALTIME_ONLY #include "av1/encoder/mv_prec.h" #if !CONFIG_REALTIME_ONLY static inline int_mv get_ref_mv_for_mv_stats( const MB_MODE_INFO *mbmi, const MB_MODE_INFO_EXT_FRAME *mbmi_ext_frame, int ref_idx) { int ref_mv_idx = mbmi->ref_mv_idx; if (mbmi->mode == NEAR_NEWMV || mbmi->mode == NEW_NEARMV) { assert(has_second_ref(mbmi)); ref_mv_idx += 1; } const MV_REFERENCE_FRAME *ref_frames = mbmi->ref_frame; const int8_t ref_frame_type = av1_ref_frame_type(ref_frames); const CANDIDATE_MV *curr_ref_mv_stack = mbmi_ext_frame->ref_mv_stack; if (ref_frames[1] > INTRA_FRAME) { assert(ref_idx == 0 || ref_idx == 1); return ref_idx ? curr_ref_mv_stack[ref_mv_idx].comp_mv : curr_ref_mv_stack[ref_mv_idx].this_mv; } assert(ref_idx == 0); return ref_mv_idx < mbmi_ext_frame->ref_mv_count ? curr_ref_mv_stack[ref_mv_idx].this_mv : mbmi_ext_frame->global_mvs[ref_frame_type]; } static inline int get_symbol_cost(const aom_cdf_prob *cdf, int symbol) { const aom_cdf_prob cur_cdf = AOM_ICDF(cdf[symbol]); const aom_cdf_prob prev_cdf = symbol ? AOM_ICDF(cdf[symbol - 1]) : 0; const aom_cdf_prob p15 = AOMMAX(cur_cdf - prev_cdf, EC_MIN_PROB); return av1_cost_symbol(p15); } static inline int keep_one_comp_stat(MV_STATS *mv_stats, int comp_val, int comp_idx, const AV1_COMP *cpi, int *rates) { assert(comp_val != 0 && "mv component should not have zero value!"); const int sign = comp_val < 0; const int mag = sign ? -comp_val : comp_val; const int mag_minus_1 = mag - 1; int offset; const int mv_class = av1_get_mv_class(mag_minus_1, &offset); const int int_part = offset >> 3; // int mv data const int frac_part = (offset >> 1) & 3; // fractional mv data const int high_part = offset & 1; // high precision mv data const int use_hp = cpi->common.features.allow_high_precision_mv; int r_idx = 0; const MACROBLOCK *const x = &cpi->td.mb; const MACROBLOCKD *const xd = &x->e_mbd; FRAME_CONTEXT *ec_ctx = xd->tile_ctx; nmv_context *nmvc = &ec_ctx->nmvc; nmv_component *mvcomp_ctx = nmvc->comps; nmv_component *cur_mvcomp_ctx = &mvcomp_ctx[comp_idx]; aom_cdf_prob *sign_cdf = cur_mvcomp_ctx->sign_cdf; aom_cdf_prob *class_cdf = cur_mvcomp_ctx->classes_cdf; aom_cdf_prob *class0_cdf = cur_mvcomp_ctx->class0_cdf; aom_cdf_prob(*bits_cdf)[3] = cur_mvcomp_ctx->bits_cdf; aom_cdf_prob *frac_part_cdf = mv_class ? (cur_mvcomp_ctx->fp_cdf) : (cur_mvcomp_ctx->class0_fp_cdf[int_part]); aom_cdf_prob *high_part_cdf = mv_class ? (cur_mvcomp_ctx->hp_cdf) : (cur_mvcomp_ctx->class0_hp_cdf); const int sign_rate = get_symbol_cost(sign_cdf, sign); rates[r_idx++] = sign_rate; update_cdf(sign_cdf, sign, 2); const int class_rate = get_symbol_cost(class_cdf, mv_class); rates[r_idx++] = class_rate; update_cdf(class_cdf, mv_class, MV_CLASSES); int int_bit_rate = 0; if (mv_class == MV_CLASS_0) { int_bit_rate = get_symbol_cost(class0_cdf, int_part); update_cdf(class0_cdf, int_part, CLASS0_SIZE); } else { const int n = mv_class + CLASS0_BITS - 1; // number of bits for (int i = 0; i < n; ++i) { int_bit_rate += get_symbol_cost(bits_cdf[i], (int_part >> i) & 1); update_cdf(bits_cdf[i], (int_part >> i) & 1, 2); } } rates[r_idx++] = int_bit_rate; const int frac_part_rate = get_symbol_cost(frac_part_cdf, frac_part); rates[r_idx++] = frac_part_rate; update_cdf(frac_part_cdf, frac_part, MV_FP_SIZE); const int high_part_rate = use_hp ? get_symbol_cost(high_part_cdf, high_part) : 0; if (use_hp) { update_cdf(high_part_cdf, high_part, 2); } rates[r_idx++] = high_part_rate; mv_stats->last_bit_zero += !high_part; mv_stats->last_bit_nonzero += high_part; const int total_rate = (sign_rate + class_rate + int_bit_rate + frac_part_rate + high_part_rate); return total_rate; } static inline void keep_one_mv_stat(MV_STATS *mv_stats, const MV *ref_mv, const MV *cur_mv, const AV1_COMP *cpi) { const MACROBLOCK *const x = &cpi->td.mb; const MACROBLOCKD *const xd = &x->e_mbd; FRAME_CONTEXT *ec_ctx = xd->tile_ctx; nmv_context *nmvc = &ec_ctx->nmvc; aom_cdf_prob *joint_cdf = nmvc->joints_cdf; const int use_hp = cpi->common.features.allow_high_precision_mv; const MV diff = { cur_mv->row - ref_mv->row, cur_mv->col - ref_mv->col }; const int mv_joint = av1_get_mv_joint(&diff); // TODO([email protected]): Estimate hp_diff when we are using lp const MV hp_diff = diff; const int hp_mv_joint = av1_get_mv_joint(&hp_diff); const MV truncated_diff = { (diff.row / 2) * 2, (diff.col / 2) * 2 }; const MV lp_diff = use_hp ? truncated_diff : diff; const int lp_mv_joint = av1_get_mv_joint(&lp_diff); const int mv_joint_rate = get_symbol_cost(joint_cdf, mv_joint); const int hp_mv_joint_rate = get_symbol_cost(joint_cdf, hp_mv_joint); const int lp_mv_joint_rate = get_symbol_cost(joint_cdf, lp_mv_joint); update_cdf(joint_cdf, mv_joint, MV_JOINTS); mv_stats->total_mv_rate += mv_joint_rate; mv_stats->hp_total_mv_rate += hp_mv_joint_rate; mv_stats->lp_total_mv_rate += lp_mv_joint_rate; mv_stats->mv_joint_count[mv_joint]++; for (int comp_idx = 0; comp_idx < 2; comp_idx++) { const int comp_val = comp_idx ? diff.col : diff.row; const int hp_comp_val = comp_idx ? hp_diff.col : hp_diff.row; const int lp_comp_val = comp_idx ? lp_diff.col : lp_diff.row; int rates[5]; av1_zero_array(rates, 5); const int comp_rate = comp_val ? keep_one_comp_stat(mv_stats, comp_val, comp_idx, cpi, rates) : 0; // TODO([email protected]): Properly get hp rate when use_hp is false const int hp_rate = hp_comp_val ? rates[0] + rates[1] + rates[2] + rates[3] + rates[4] : 0; const int lp_rate = lp_comp_val ? rates[0] + rates[1] + rates[2] + rates[3] : 0; mv_stats->total_mv_rate += comp_rate; mv_stats->hp_total_mv_rate += hp_rate; mv_stats->lp_total_mv_rate += lp_rate; } } static inline void collect_mv_stats_b(MV_STATS *mv_stats, const AV1_COMP *cpi, int mi_row, int mi_col) { const AV1_COMMON *cm = &cpi->common; const CommonModeInfoParams *const mi_params = &cm->mi_params; if (mi_row >= mi_params->mi_rows || mi_col >= mi_params->mi_cols) { return; } const MB_MODE_INFO *mbmi = mi_params->mi_grid_base[mi_row * mi_params->mi_stride + mi_col]; const MB_MODE_INFO_EXT_FRAME *mbmi_ext_frame = cpi->mbmi_ext_info.frame_base + get_mi_ext_idx(mi_row, mi_col, cm->mi_params.mi_alloc_bsize, cpi->mbmi_ext_info.stride); if (!is_inter_block(mbmi)) { mv_stats->intra_count++; return; } mv_stats->inter_count++; const PREDICTION_MODE mode = mbmi->mode; const int is_compound = has_second_ref(mbmi); if (mode == NEWMV || mode == NEW_NEWMV) { // All mvs are new for (int ref_idx = 0; ref_idx < 1 + is_compound; ++ref_idx) { const MV ref_mv = get_ref_mv_for_mv_stats(mbmi, mbmi_ext_frame, ref_idx).as_mv; const MV cur_mv = mbmi->mv[ref_idx].as_mv; keep_one_mv_stat(mv_stats, &ref_mv, &cur_mv, cpi); } } else if (mode == NEAREST_NEWMV || mode == NEAR_NEWMV || mode == NEW_NEARESTMV || mode == NEW_NEARMV) { // has exactly one new_mv mv_stats->default_mvs += 1; const int ref_idx = (mode == NEAREST_NEWMV || mode == NEAR_NEWMV); const MV ref_mv = get_ref_mv_for_mv_stats(mbmi, mbmi_ext_frame, ref_idx).as_mv; const MV cur_mv = mbmi->mv[ref_idx].as_mv; keep_one_mv_stat(mv_stats, &ref_mv, &cur_mv, cpi); } else { // No new_mv mv_stats->default_mvs += 1 + is_compound; } // Add texture information const BLOCK_SIZE bsize = mbmi->bsize; const int num_rows = block_size_high[bsize]; const int num_cols = block_size_wide[bsize]; const int y_stride = cpi->source->y_stride; const int px_row = 4 * mi_row, px_col = 4 * mi_col; const int buf_is_hbd = cpi->source->flags & YV12_FLAG_HIGHBITDEPTH; const int bd = cm->seq_params->bit_depth; if (buf_is_hbd) { uint16_t *source_buf = CONVERT_TO_SHORTPTR(cpi->source->y_buffer) + px_row * y_stride + px_col; for (int row = 0; row < num_rows - 1; row++) { for (int col = 0; col < num_cols - 1; col++) { const int offset = row * y_stride + col; const int horz_diff = abs(source_buf[offset + 1] - source_buf[offset]) >> (bd - 8); const int vert_diff = abs(source_buf[offset + y_stride] - source_buf[offset]) >> (bd - 8); mv_stats->horz_text += horz_diff; mv_stats->vert_text += vert_diff; mv_stats->diag_text += horz_diff * vert_diff; } } } else { uint8_t *source_buf = cpi->source->y_buffer + px_row * y_stride + px_col; for (int row = 0; row < num_rows - 1; row++) { for (int col = 0; col < num_cols - 1; col++) { const int offset = row * y_stride + col; const int horz_diff = abs(source_buf[offset + 1] - source_buf[offset]); const int vert_diff = abs(source_buf[offset + y_stride] - source_buf[offset]); mv_stats->horz_text += horz_diff; mv_stats->vert_text += vert_diff; mv_stats->diag_text += horz_diff * vert_diff; } } } } // Split block static inline void collect_mv_stats_sb(MV_STATS *mv_stats, const AV1_COMP *cpi, int mi_row, int mi_col, BLOCK_SIZE bsize) { assert(bsize < BLOCK_SIZES_ALL); const AV1_COMMON *cm = &cpi->common; if (mi_row >= cm->mi_params.mi_rows || mi_col >= cm->mi_params.mi_cols) return; const PARTITION_TYPE partition = get_partition(cm, mi_row, mi_col, bsize); const BLOCK_SIZE subsize = get_partition_subsize(bsize, partition); const int hbs = mi_size_wide[bsize] / 2; const int qbs = mi_size_wide[bsize] / 4; switch (partition) { case PARTITION_NONE: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); break; case PARTITION_HORZ: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row + hbs, mi_col); break; case PARTITION_VERT: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col + hbs); break; case PARTITION_SPLIT: collect_mv_stats_sb(mv_stats, cpi, mi_row, mi_col, subsize); collect_mv_stats_sb(mv_stats, cpi, mi_row, mi_col + hbs, subsize); collect_mv_stats_sb(mv_stats, cpi, mi_row + hbs, mi_col, subsize); collect_mv_stats_sb(mv_stats, cpi, mi_row + hbs, mi_col + hbs, subsize); break; case PARTITION_HORZ_A: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col + hbs); collect_mv_stats_b(mv_stats, cpi, mi_row + hbs, mi_col); break; case PARTITION_HORZ_B: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row + hbs, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row + hbs, mi_col + hbs); break; case PARTITION_VERT_A: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row + hbs, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col + hbs); break; case PARTITION_VERT_B: collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col); collect_mv_stats_b(mv_stats, cpi, mi_row, mi_col + hbs); collect_mv_stats_b(mv_stats, cpi, mi_row + hbs, mi_col + hbs); break; case PARTITION_HORZ_4: for (int i = 0; i < 4; ++i) { const int this_mi_row = mi_row + i * qbs; collect_mv_stats_b(mv_stats, cpi, this_mi_row, mi_col); } break; case PARTITION_VERT_4: for (int i = 0; i < 4; ++i) { const int this_mi_col = mi_col + i * qbs; collect_mv_stats_b(mv_stats, cpi, mi_row, this_mi_col); } break; default: assert(0); } } static inline void collect_mv_stats_tile(MV_STATS *mv_stats, const AV1_COMP *cpi, const TileInfo *tile_info) { const AV1_COMMON *cm = &cpi->common; const int mi_row_start = tile_info->mi_row_start; const int mi_row_end = tile_info->mi_row_end; const int mi_col_start = tile_info->mi_col_start; const int mi_col_end = tile_info->mi_col_end; const int sb_size_mi = cm->seq_params->mib_size; BLOCK_SIZE sb_size = cm->seq_params->sb_size; for (int mi_row = mi_row_start; mi_row < mi_row_end; mi_row += sb_size_mi) { for (int mi_col = mi_col_start; mi_col < mi_col_end; mi_col += sb_size_mi) { collect_mv_stats_sb(mv_stats, cpi, mi_row, mi_col, sb_size); } } } void av1_collect_mv_stats(AV1_COMP *cpi, int current_q) { MV_STATS *mv_stats = &cpi->mv_stats; const AV1_COMMON *cm = &cpi->common; const int tile_cols = cm->tiles.cols; const int tile_rows = cm->tiles.rows; for (int tile_row = 0; tile_row < tile_rows; tile_row++) { TileInfo tile_info; av1_tile_set_row(&tile_info, cm, tile_row); for (int tile_col = 0; tile_col < tile_cols; tile_col++) { const int tile_idx = tile_row * tile_cols + tile_col; av1_tile_set_col(&tile_info, cm, tile_col); cpi->tile_data[tile_idx].tctx = *cm->fc; cpi->td.mb.e_mbd.tile_ctx = &cpi->tile_data[tile_idx].tctx; collect_mv_stats_tile(mv_stats, cpi, &tile_info); } } mv_stats->q = current_q; mv_stats->order = cpi->common.current_frame.order_hint; mv_stats->valid = 1; } static inline int get_smart_mv_prec(AV1_COMP *cpi, const MV_STATS *mv_stats, int current_q) { const AV1_COMMON *cm = &cpi->common; const int order_hint = cpi->common.current_frame.order_hint; const int order_diff = order_hint - mv_stats->order; const float area = (float)(cm->width * cm->height); float features[MV_PREC_FEATURE_SIZE] = { (float)current_q, (float)mv_stats->q, (float)order_diff, mv_stats->inter_count / area, mv_stats->intra_count / area, mv_stats->default_mvs / area, mv_stats->mv_joint_count[0] / area, mv_stats->mv_joint_count[1] / area, mv_stats->mv_joint_count[2] / area, mv_stats->mv_joint_count[3] / area, mv_stats->last_bit_zero / area, mv_stats->last_bit_nonzero / area, mv_stats->total_mv_rate / area, mv_stats->hp_total_mv_rate / area, mv_stats->lp_total_mv_rate / area, mv_stats->horz_text / area, mv_stats->vert_text / area, mv_stats->diag_text / area, }; for (int f_idx = 0; f_idx < MV_PREC_FEATURE_SIZE; f_idx++) { features[f_idx] = (features[f_idx] - av1_mv_prec_mean[f_idx]) / av1_mv_prec_std[f_idx]; } float score = 0.0f; av1_nn_predict(features, &av1_mv_prec_dnn_config, 1, &score); const int use_high_hp = score >= 0.0f; return use_high_hp; } #endif // !CONFIG_REALTIME_ONLY void av1_pick_and_set_high_precision_mv(AV1_COMP *cpi, int qindex) { … }
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