| /* |
| * Copyright (c) 2021, 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 "av1/encoder/txb_rdopt.h" |
| #include "av1/encoder/txb_rdopt_utils.h" |
| |
| #include "av1/common/idct.h" |
| |
| static INLINE void update_coeff_general( |
| int *accu_rate, int64_t *accu_dist, int si, int eob, TX_SIZE tx_size, |
| TX_CLASS tx_class, int bwl, int height, int64_t rdmult, int shift, |
| int dc_sign_ctx, const int16_t *dequant, const int16_t *scan, |
| const LV_MAP_COEFF_COST *txb_costs, const tran_low_t *tcoeff, |
| tran_low_t *qcoeff, tran_low_t *dqcoeff, uint8_t *levels, |
| const qm_val_t *iqmatrix) { |
| const int dqv = get_dqv(dequant, scan[si], iqmatrix); |
| const int ci = scan[si]; |
| const tran_low_t qc = qcoeff[ci]; |
| const int is_last = si == (eob - 1); |
| const int coeff_ctx = get_lower_levels_ctx_general( |
| is_last, si, bwl, height, levels, ci, tx_size, tx_class); |
| if (qc == 0) { |
| *accu_rate += txb_costs->base_cost[coeff_ctx][0]; |
| } else { |
| const int sign = (qc < 0) ? 1 : 0; |
| const tran_low_t abs_qc = abs(qc); |
| const tran_low_t tqc = tcoeff[ci]; |
| const tran_low_t dqc = dqcoeff[ci]; |
| const int64_t dist = get_coeff_dist(tqc, dqc, shift); |
| const int64_t dist0 = get_coeff_dist(tqc, 0, shift); |
| const int rate = |
| get_coeff_cost_general(is_last, ci, abs_qc, sign, coeff_ctx, |
| dc_sign_ctx, txb_costs, bwl, tx_class, levels); |
| const int64_t rd = RDCOST(rdmult, rate, dist); |
| |
| tran_low_t qc_low, dqc_low; |
| tran_low_t abs_qc_low; |
| int64_t dist_low, rd_low; |
| int rate_low; |
| if (abs_qc == 1) { |
| abs_qc_low = qc_low = dqc_low = 0; |
| dist_low = dist0; |
| rate_low = txb_costs->base_cost[coeff_ctx][0]; |
| } else { |
| get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); |
| abs_qc_low = abs_qc - 1; |
| dist_low = get_coeff_dist(tqc, dqc_low, shift); |
| rate_low = |
| get_coeff_cost_general(is_last, ci, abs_qc_low, sign, coeff_ctx, |
| dc_sign_ctx, txb_costs, bwl, tx_class, levels); |
| } |
| |
| rd_low = RDCOST(rdmult, rate_low, dist_low); |
| if (rd_low < rd) { |
| qcoeff[ci] = qc_low; |
| dqcoeff[ci] = dqc_low; |
| levels[get_padded_idx(ci, bwl)] = AOMMIN(abs_qc_low, INT8_MAX); |
| *accu_rate += rate_low; |
| *accu_dist += dist_low - dist0; |
| } else { |
| *accu_rate += rate; |
| *accu_dist += dist - dist0; |
| } |
| } |
| } |
| |
| static AOM_FORCE_INLINE void update_coeff_simple( |
| int *accu_rate, int si, int eob, TX_SIZE tx_size, TX_CLASS tx_class, |
| int bwl, int64_t rdmult, int shift, const int16_t *dequant, |
| const int16_t *scan, const LV_MAP_COEFF_COST *txb_costs, |
| const tran_low_t *tcoeff, tran_low_t *qcoeff, tran_low_t *dqcoeff, |
| uint8_t *levels, const qm_val_t *iqmatrix) { |
| const int dqv = get_dqv(dequant, scan[si], iqmatrix); |
| (void)eob; |
| // this simple version assumes the coeff's scan_idx is not DC (scan_idx != 0) |
| // and not the last (scan_idx != eob - 1) |
| assert(si != eob - 1); |
| assert(si > 0); |
| const int ci = scan[si]; |
| const tran_low_t qc = qcoeff[ci]; |
| const int coeff_ctx = |
| get_lower_levels_ctx(levels, ci, bwl, tx_size, tx_class); |
| if (qc == 0) { |
| *accu_rate += txb_costs->base_cost[coeff_ctx][0]; |
| } else { |
| const tran_low_t abs_qc = abs(qc); |
| const tran_low_t abs_tqc = abs(tcoeff[ci]); |
| const tran_low_t abs_dqc = abs(dqcoeff[ci]); |
| int rate_low = 0; |
| const int rate = get_two_coeff_cost_simple( |
| ci, abs_qc, coeff_ctx, txb_costs, bwl, tx_class, levels, &rate_low); |
| if (abs_dqc < abs_tqc) { |
| *accu_rate += rate; |
| return; |
| } |
| |
| const int64_t dist = get_coeff_dist(abs_tqc, abs_dqc, shift); |
| const int64_t rd = RDCOST(rdmult, rate, dist); |
| |
| const tran_low_t abs_qc_low = abs_qc - 1; |
| const tran_low_t abs_dqc_low = (abs_qc_low * dqv) >> shift; |
| const int64_t dist_low = get_coeff_dist(abs_tqc, abs_dqc_low, shift); |
| const int64_t rd_low = RDCOST(rdmult, rate_low, dist_low); |
| |
| if (rd_low < rd) { |
| const int sign = (qc < 0) ? 1 : 0; |
| qcoeff[ci] = (-sign ^ abs_qc_low) + sign; |
| dqcoeff[ci] = (-sign ^ abs_dqc_low) + sign; |
| levels[get_padded_idx(ci, bwl)] = AOMMIN(abs_qc_low, INT8_MAX); |
| *accu_rate += rate_low; |
| } else { |
| *accu_rate += rate; |
| } |
| } |
| } |
| |
| static AOM_FORCE_INLINE void update_coeff_eob( |
| int *accu_rate, int64_t *accu_dist, int *eob, int *nz_num, int *nz_ci, |
| int si, TX_SIZE tx_size, TX_CLASS tx_class, int bwl, int height, |
| int dc_sign_ctx, int64_t rdmult, int shift, const int16_t *dequant, |
| const int16_t *scan, const LV_MAP_EOB_COST *txb_eob_costs, |
| const LV_MAP_COEFF_COST *txb_costs, const tran_low_t *tcoeff, |
| tran_low_t *qcoeff, tran_low_t *dqcoeff, uint8_t *levels, int sharpness, |
| const qm_val_t *iqmatrix) { |
| const int dqv = get_dqv(dequant, scan[si], iqmatrix); |
| assert(si != *eob - 1); |
| const int ci = scan[si]; |
| const tran_low_t qc = qcoeff[ci]; |
| const int coeff_ctx = |
| get_lower_levels_ctx(levels, ci, bwl, tx_size, tx_class); |
| if (qc == 0) { |
| *accu_rate += txb_costs->base_cost[coeff_ctx][0]; |
| } else { |
| int lower_level = 0; |
| const tran_low_t abs_qc = abs(qc); |
| const tran_low_t tqc = tcoeff[ci]; |
| const tran_low_t dqc = dqcoeff[ci]; |
| const int sign = (qc < 0) ? 1 : 0; |
| const int64_t dist0 = get_coeff_dist(tqc, 0, shift); |
| int64_t dist = get_coeff_dist(tqc, dqc, shift) - dist0; |
| int rate = |
| get_coeff_cost_general(0, ci, abs_qc, sign, coeff_ctx, dc_sign_ctx, |
| txb_costs, bwl, tx_class, levels); |
| int64_t rd = RDCOST(rdmult, *accu_rate + rate, *accu_dist + dist); |
| |
| tran_low_t qc_low, dqc_low; |
| tran_low_t abs_qc_low; |
| int64_t dist_low, rd_low; |
| int rate_low; |
| if (abs_qc == 1) { |
| abs_qc_low = 0; |
| dqc_low = qc_low = 0; |
| dist_low = 0; |
| rate_low = txb_costs->base_cost[coeff_ctx][0]; |
| rd_low = RDCOST(rdmult, *accu_rate + rate_low, *accu_dist); |
| } else { |
| get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); |
| abs_qc_low = abs_qc - 1; |
| dist_low = get_coeff_dist(tqc, dqc_low, shift) - dist0; |
| rate_low = |
| get_coeff_cost_general(0, ci, abs_qc_low, sign, coeff_ctx, |
| dc_sign_ctx, txb_costs, bwl, tx_class, levels); |
| rd_low = RDCOST(rdmult, *accu_rate + rate_low, *accu_dist + dist_low); |
| } |
| |
| int lower_level_new_eob = 0; |
| const int new_eob = si + 1; |
| const int coeff_ctx_new_eob = get_lower_levels_ctx_eob(bwl, height, si); |
| const int new_eob_cost = |
| get_eob_cost(new_eob, txb_eob_costs, txb_costs, tx_class); |
| int rate_coeff_eob = |
| new_eob_cost + get_coeff_cost_eob(ci, abs_qc, sign, coeff_ctx_new_eob, |
| dc_sign_ctx, txb_costs, bwl, |
| tx_class); |
| int64_t dist_new_eob = dist; |
| int64_t rd_new_eob = RDCOST(rdmult, rate_coeff_eob, dist_new_eob); |
| |
| if (abs_qc_low > 0) { |
| const int rate_coeff_eob_low = |
| new_eob_cost + get_coeff_cost_eob(ci, abs_qc_low, sign, |
| coeff_ctx_new_eob, dc_sign_ctx, |
| txb_costs, bwl, tx_class); |
| const int64_t dist_new_eob_low = dist_low; |
| const int64_t rd_new_eob_low = |
| RDCOST(rdmult, rate_coeff_eob_low, dist_new_eob_low); |
| if (rd_new_eob_low < rd_new_eob) { |
| lower_level_new_eob = 1; |
| rd_new_eob = rd_new_eob_low; |
| rate_coeff_eob = rate_coeff_eob_low; |
| dist_new_eob = dist_new_eob_low; |
| } |
| } |
| |
| if (rd_low < rd) { |
| lower_level = 1; |
| rd = rd_low; |
| rate = rate_low; |
| dist = dist_low; |
| } |
| |
| if (sharpness == 0 && rd_new_eob < rd) { |
| for (int ni = 0; ni < *nz_num; ++ni) { |
| int last_ci = nz_ci[ni]; |
| levels[get_padded_idx(last_ci, bwl)] = 0; |
| qcoeff[last_ci] = 0; |
| dqcoeff[last_ci] = 0; |
| } |
| *eob = new_eob; |
| *nz_num = 0; |
| *accu_rate = rate_coeff_eob; |
| *accu_dist = dist_new_eob; |
| lower_level = lower_level_new_eob; |
| } else { |
| *accu_rate += rate; |
| *accu_dist += dist; |
| } |
| |
| if (lower_level) { |
| qcoeff[ci] = qc_low; |
| dqcoeff[ci] = dqc_low; |
| levels[get_padded_idx(ci, bwl)] = AOMMIN(abs_qc_low, INT8_MAX); |
| } |
| if (qcoeff[ci]) { |
| nz_ci[*nz_num] = ci; |
| ++*nz_num; |
| } |
| } |
| } |
| |
| static INLINE void update_skip(int *accu_rate, int64_t accu_dist, int *eob, |
| int nz_num, int *nz_ci, int64_t rdmult, |
| int skip_cost, int non_skip_cost, |
| tran_low_t *qcoeff, tran_low_t *dqcoeff, |
| int sharpness) { |
| const int64_t rd = RDCOST(rdmult, *accu_rate + non_skip_cost, accu_dist); |
| const int64_t rd_new_eob = RDCOST(rdmult, skip_cost, 0); |
| if (sharpness == 0 && rd_new_eob < rd) { |
| for (int i = 0; i < nz_num; ++i) { |
| const int ci = nz_ci[i]; |
| qcoeff[ci] = 0; |
| dqcoeff[ci] = 0; |
| // no need to set up levels because this is the last step |
| // levels[get_padded_idx(ci, bwl)] = 0; |
| } |
| *accu_rate = 0; |
| *eob = 0; |
| } |
| } |
| |
| // TODO(angiebird): use this function whenever it's possible |
| static int get_tx_type_cost(const MACROBLOCK *x, const MACROBLOCKD *xd, |
| int plane, TX_SIZE tx_size, TX_TYPE tx_type, |
| int reduced_tx_set_used) { |
| if (plane > 0) return 0; |
| |
| const TX_SIZE square_tx_size = txsize_sqr_map[tx_size]; |
| |
| const MB_MODE_INFO *mbmi = xd->mi[0]; |
| const int is_inter = is_inter_block(mbmi); |
| if (get_ext_tx_types(tx_size, is_inter, reduced_tx_set_used) > 1 && |
| !xd->lossless[xd->mi[0]->segment_id]) { |
| const int ext_tx_set = |
| get_ext_tx_set(tx_size, is_inter, reduced_tx_set_used); |
| if (is_inter) { |
| if (ext_tx_set > 0) |
| return x->mode_costs |
| .inter_tx_type_costs[ext_tx_set][square_tx_size][tx_type]; |
| } else { |
| if (ext_tx_set > 0) { |
| PREDICTION_MODE intra_dir; |
| if (mbmi->filter_intra_mode_info.use_filter_intra) |
| intra_dir = fimode_to_intradir[mbmi->filter_intra_mode_info |
| .filter_intra_mode]; |
| else |
| intra_dir = mbmi->mode; |
| return x->mode_costs.intra_tx_type_costs[ext_tx_set][square_tx_size] |
| [intra_dir][tx_type]; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| int av1_optimize_txb(const struct AV1_COMP *cpi, MACROBLOCK *x, int plane, |
| int block, TX_SIZE tx_size, TX_TYPE tx_type, |
| const TXB_CTX *const txb_ctx, int *rate_cost, |
| int sharpness) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| const struct macroblock_plane *p = &x->plane[plane]; |
| const SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); |
| const int16_t *scan = scan_order->scan; |
| const int shift = av1_get_tx_scale(tx_size); |
| int eob = p->eobs[block]; |
| const int16_t *dequant = p->dequant_QTX; |
| const qm_val_t *iqmatrix = |
| av1_get_iqmatrix(&cpi->common.quant_params, xd, plane, tx_size, tx_type); |
| const int block_offset = BLOCK_OFFSET(block); |
| tran_low_t *qcoeff = p->qcoeff + block_offset; |
| tran_low_t *dqcoeff = p->dqcoeff + block_offset; |
| const tran_low_t *tcoeff = p->coeff + block_offset; |
| const CoeffCosts *coeff_costs = &x->coeff_costs; |
| |
| // This function is not called if eob = 0. |
| assert(eob > 0); |
| |
| const AV1_COMMON *cm = &cpi->common; |
| const PLANE_TYPE plane_type = get_plane_type(plane); |
| const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); |
| const TX_CLASS tx_class = tx_type_to_class[tx_type]; |
| const MB_MODE_INFO *mbmi = xd->mi[0]; |
| const int bwl = get_txb_bwl(tx_size); |
| const int width = get_txb_wide(tx_size); |
| const int height = get_txb_high(tx_size); |
| assert(width == (1 << bwl)); |
| const int is_inter = is_inter_block(mbmi); |
| const LV_MAP_COEFF_COST *txb_costs = |
| &coeff_costs->coeff_costs[txs_ctx][plane_type]; |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const LV_MAP_EOB_COST *txb_eob_costs = |
| &coeff_costs->eob_costs[eob_multi_size][plane_type]; |
| |
| const int rshift = |
| (sharpness + |
| (cpi->oxcf.q_cfg.aq_mode == VARIANCE_AQ && mbmi->segment_id < 4 |
| ? 7 - mbmi->segment_id |
| : 2) + |
| (cpi->oxcf.q_cfg.aq_mode != VARIANCE_AQ && |
| cpi->oxcf.q_cfg.deltaq_mode == DELTA_Q_PERCEPTUAL && |
| cm->delta_q_info.delta_q_present_flag && x->sb_energy_level < 0 |
| ? (3 - x->sb_energy_level) |
| : 0)); |
| const int64_t rdmult = |
| (((int64_t)x->rdmult * |
| (plane_rd_mult[is_inter][plane_type] << (2 * (xd->bd - 8)))) + |
| 2) >> |
| rshift; |
| |
| uint8_t levels_buf[TX_PAD_2D]; |
| uint8_t *const levels = set_levels(levels_buf, width); |
| |
| if (eob > 1) av1_txb_init_levels(qcoeff, width, height, levels); |
| |
| // TODO(angirbird): check iqmatrix |
| |
| const int non_skip_cost = txb_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][0]; |
| const int skip_cost = txb_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][1]; |
| const int eob_cost = get_eob_cost(eob, txb_eob_costs, txb_costs, tx_class); |
| int accu_rate = eob_cost; |
| int64_t accu_dist = 0; |
| int si = eob - 1; |
| const int ci = scan[si]; |
| const tran_low_t qc = qcoeff[ci]; |
| const tran_low_t abs_qc = abs(qc); |
| const int sign = qc < 0; |
| const int max_nz_num = 2; |
| int nz_num = 1; |
| int nz_ci[3] = { ci, 0, 0 }; |
| if (abs_qc >= 2) { |
| update_coeff_general(&accu_rate, &accu_dist, si, eob, tx_size, tx_class, |
| bwl, height, rdmult, shift, txb_ctx->dc_sign_ctx, |
| dequant, scan, txb_costs, tcoeff, qcoeff, dqcoeff, |
| levels, iqmatrix); |
| --si; |
| } else { |
| assert(abs_qc == 1); |
| const int coeff_ctx = get_lower_levels_ctx_eob(bwl, height, si); |
| accu_rate += |
| get_coeff_cost_eob(ci, abs_qc, sign, coeff_ctx, txb_ctx->dc_sign_ctx, |
| txb_costs, bwl, tx_class); |
| const tran_low_t tqc = tcoeff[ci]; |
| const tran_low_t dqc = dqcoeff[ci]; |
| const int64_t dist = get_coeff_dist(tqc, dqc, shift); |
| const int64_t dist0 = get_coeff_dist(tqc, 0, shift); |
| accu_dist += dist - dist0; |
| --si; |
| } |
| |
| #define UPDATE_COEFF_EOB_CASE(tx_class_literal) \ |
| case tx_class_literal: \ |
| for (; si >= 0 && nz_num <= max_nz_num; --si) { \ |
| update_coeff_eob(&accu_rate, &accu_dist, &eob, &nz_num, nz_ci, si, \ |
| tx_size, tx_class_literal, bwl, height, \ |
| txb_ctx->dc_sign_ctx, rdmult, shift, dequant, scan, \ |
| txb_eob_costs, txb_costs, tcoeff, qcoeff, dqcoeff, \ |
| levels, sharpness, iqmatrix); \ |
| } \ |
| break; |
| switch (tx_class) { |
| UPDATE_COEFF_EOB_CASE(TX_CLASS_2D); |
| UPDATE_COEFF_EOB_CASE(TX_CLASS_HORIZ); |
| UPDATE_COEFF_EOB_CASE(TX_CLASS_VERT); |
| #undef UPDATE_COEFF_EOB_CASE |
| default: assert(false); |
| } |
| |
| if (si == -1 && nz_num <= max_nz_num) { |
| update_skip(&accu_rate, accu_dist, &eob, nz_num, nz_ci, rdmult, skip_cost, |
| non_skip_cost, qcoeff, dqcoeff, sharpness); |
| } |
| |
| #define UPDATE_COEFF_SIMPLE_CASE(tx_class_literal) \ |
| case tx_class_literal: \ |
| for (; si >= 1; --si) { \ |
| update_coeff_simple(&accu_rate, si, eob, tx_size, tx_class_literal, bwl, \ |
| rdmult, shift, dequant, scan, txb_costs, tcoeff, \ |
| qcoeff, dqcoeff, levels, iqmatrix); \ |
| } \ |
| break; |
| switch (tx_class) { |
| UPDATE_COEFF_SIMPLE_CASE(TX_CLASS_2D); |
| UPDATE_COEFF_SIMPLE_CASE(TX_CLASS_HORIZ); |
| UPDATE_COEFF_SIMPLE_CASE(TX_CLASS_VERT); |
| #undef UPDATE_COEFF_SIMPLE_CASE |
| default: assert(false); |
| } |
| |
| // DC position |
| if (si == 0) { |
| // no need to update accu_dist because it's not used after this point |
| int64_t dummy_dist = 0; |
| update_coeff_general(&accu_rate, &dummy_dist, si, eob, tx_size, tx_class, |
| bwl, height, rdmult, shift, txb_ctx->dc_sign_ctx, |
| dequant, scan, txb_costs, tcoeff, qcoeff, dqcoeff, |
| levels, iqmatrix); |
| } |
| |
| const int tx_type_cost = get_tx_type_cost(x, xd, plane, tx_size, tx_type, |
| cm->features.reduced_tx_set_used); |
| if (eob == 0) |
| accu_rate += skip_cost; |
| else |
| accu_rate += non_skip_cost + tx_type_cost; |
| |
| p->eobs[block] = eob; |
| p->txb_entropy_ctx[block] = |
| av1_get_txb_entropy_context(qcoeff, scan_order, p->eobs[block]); |
| |
| *rate_cost = accu_rate; |
| return eob; |
| } |
| |
| static AOM_FORCE_INLINE int warehouse_efficients_txb( |
| const MACROBLOCK *x, const int plane, const int block, |
| const TX_SIZE tx_size, const TXB_CTX *const txb_ctx, |
| const struct macroblock_plane *p, const int eob, |
| const PLANE_TYPE plane_type, const LV_MAP_COEFF_COST *const coeff_costs, |
| const MACROBLOCKD *const xd, const TX_TYPE tx_type, const TX_CLASS tx_class, |
| int reduced_tx_set_used) { |
| const tran_low_t *const qcoeff = p->qcoeff + BLOCK_OFFSET(block); |
| const int txb_skip_ctx = txb_ctx->txb_skip_ctx; |
| const int bwl = get_txb_bwl(tx_size); |
| const int width = get_txb_wide(tx_size); |
| const int height = get_txb_high(tx_size); |
| const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); |
| const int16_t *const scan = scan_order->scan; |
| uint8_t levels_buf[TX_PAD_2D]; |
| uint8_t *const levels = set_levels(levels_buf, width); |
| DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const LV_MAP_EOB_COST *const eob_costs = |
| &x->coeff_costs.eob_costs[eob_multi_size][plane_type]; |
| int cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; |
| |
| av1_txb_init_levels(qcoeff, width, height, levels); |
| |
| cost += get_tx_type_cost(x, xd, plane, tx_size, tx_type, reduced_tx_set_used); |
| |
| cost += get_eob_cost(eob, eob_costs, coeff_costs, tx_class); |
| |
| av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, coeff_contexts); |
| |
| const int(*lps_cost)[COEFF_BASE_RANGE + 1 + COEFF_BASE_RANGE + 1] = |
| coeff_costs->lps_cost; |
| int c = eob - 1; |
| { |
| const int pos = scan[c]; |
| const tran_low_t v = qcoeff[pos]; |
| const int sign = AOMSIGN(v); |
| const int level = (v ^ sign) - sign; |
| const int coeff_ctx = coeff_contexts[pos]; |
| cost += coeff_costs->base_eob_cost[coeff_ctx][AOMMIN(level, 3) - 1]; |
| |
| if (v) { |
| // sign bit cost |
| if (level > NUM_BASE_LEVELS) { |
| const int ctx = get_br_ctx_eob(pos, bwl, tx_class); |
| cost += get_br_cost(level, lps_cost[ctx]); |
| } |
| if (c) { |
| cost += av1_cost_literal(1); |
| } else { |
| const int sign01 = (sign ^ sign) - sign; |
| const int dc_sign_ctx = txb_ctx->dc_sign_ctx; |
| cost += coeff_costs->dc_sign_cost[dc_sign_ctx][sign01]; |
| return cost; |
| } |
| } |
| } |
| const int(*base_cost)[8] = coeff_costs->base_cost; |
| for (c = eob - 2; c >= 1; --c) { |
| const int pos = scan[c]; |
| const int coeff_ctx = coeff_contexts[pos]; |
| const tran_low_t v = qcoeff[pos]; |
| const int level = abs(v); |
| cost += base_cost[coeff_ctx][AOMMIN(level, 3)]; |
| if (v) { |
| // sign bit cost |
| cost += av1_cost_literal(1); |
| if (level > NUM_BASE_LEVELS) { |
| const int ctx = get_br_ctx(levels, pos, bwl, tx_class); |
| cost += get_br_cost(level, lps_cost[ctx]); |
| } |
| } |
| } |
| // c == 0 after previous loop |
| { |
| const int pos = scan[c]; |
| const tran_low_t v = qcoeff[pos]; |
| const int coeff_ctx = coeff_contexts[pos]; |
| const int sign = AOMSIGN(v); |
| const int level = (v ^ sign) - sign; |
| cost += base_cost[coeff_ctx][AOMMIN(level, 3)]; |
| |
| if (v) { |
| // sign bit cost |
| const int sign01 = (sign ^ sign) - sign; |
| const int dc_sign_ctx = txb_ctx->dc_sign_ctx; |
| cost += coeff_costs->dc_sign_cost[dc_sign_ctx][sign01]; |
| if (level > NUM_BASE_LEVELS) { |
| const int ctx = get_br_ctx(levels, pos, bwl, tx_class); |
| cost += get_br_cost(level, lps_cost[ctx]); |
| } |
| } |
| } |
| return cost; |
| } |
| |
| int av1_cost_coeffs_txb_estimate(const MACROBLOCK *x, const int plane, |
| const int block, const TX_SIZE tx_size, |
| const TX_TYPE tx_type) { |
| assert(plane == 0); |
| |
| int cost = 0; |
| const struct macroblock_plane *p = &x->plane[plane]; |
| const SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); |
| const int16_t *scan = scan_order->scan; |
| tran_low_t *qcoeff = p->qcoeff + BLOCK_OFFSET(block); |
| |
| int eob = p->eobs[block]; |
| |
| // coeffs |
| int c = eob - 1; |
| // eob |
| { |
| const int pos = scan[c]; |
| const tran_low_t v = abs(qcoeff[pos]) - 1; |
| cost += (v << (AV1_PROB_COST_SHIFT + 2)); |
| } |
| // other coeffs |
| for (c = eob - 2; c >= 0; c--) { |
| const int pos = scan[c]; |
| const tran_low_t v = abs(qcoeff[pos]); |
| const int idx = AOMMIN(v, 14); |
| |
| cost += costLUT[idx]; |
| } |
| |
| // const_term does not contain DC, and log(e) does not contain eob, so both |
| // (eob-1) |
| cost += (const_term + loge_par) * (eob - 1); |
| |
| return cost; |
| } |
| |
| static AOM_FORCE_INLINE int warehouse_efficients_txb_laplacian( |
| const MACROBLOCK *x, const int plane, const int block, |
| const TX_SIZE tx_size, const TXB_CTX *const txb_ctx, const int eob, |
| const PLANE_TYPE plane_type, const LV_MAP_COEFF_COST *const coeff_costs, |
| const MACROBLOCKD *const xd, const TX_TYPE tx_type, const TX_CLASS tx_class, |
| int reduced_tx_set_used) { |
| const int txb_skip_ctx = txb_ctx->txb_skip_ctx; |
| |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const LV_MAP_EOB_COST *const eob_costs = |
| &x->coeff_costs.eob_costs[eob_multi_size][plane_type]; |
| int cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; |
| |
| cost += get_tx_type_cost(x, xd, plane, tx_size, tx_type, reduced_tx_set_used); |
| |
| cost += get_eob_cost(eob, eob_costs, coeff_costs, tx_class); |
| |
| cost += av1_cost_coeffs_txb_estimate(x, plane, block, tx_size, tx_type); |
| return cost; |
| } |
| |
| int av1_cost_coeffs_txb(const MACROBLOCK *x, const int plane, const int block, |
| const TX_SIZE tx_size, const TX_TYPE tx_type, |
| const TXB_CTX *const txb_ctx, int reduced_tx_set_used) { |
| const struct macroblock_plane *p = &x->plane[plane]; |
| const int eob = p->eobs[block]; |
| const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); |
| const PLANE_TYPE plane_type = get_plane_type(plane); |
| const LV_MAP_COEFF_COST *const coeff_costs = |
| &x->coeff_costs.coeff_costs[txs_ctx][plane_type]; |
| if (eob == 0) { |
| return coeff_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][1]; |
| } |
| |
| const MACROBLOCKD *const xd = &x->e_mbd; |
| const TX_CLASS tx_class = tx_type_to_class[tx_type]; |
| |
| return warehouse_efficients_txb(x, plane, block, tx_size, txb_ctx, p, eob, |
| plane_type, coeff_costs, xd, tx_type, |
| tx_class, reduced_tx_set_used); |
| } |
| |
| int av1_cost_coeffs_txb_laplacian(const MACROBLOCK *x, const int plane, |
| const int block, const TX_SIZE tx_size, |
| const TX_TYPE tx_type, |
| const TXB_CTX *const txb_ctx, |
| const int reduced_tx_set_used, |
| const int adjust_eob) { |
| const struct macroblock_plane *p = &x->plane[plane]; |
| int eob = p->eobs[block]; |
| |
| if (adjust_eob) { |
| const SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); |
| const int16_t *scan = scan_order->scan; |
| tran_low_t *tcoeff = p->coeff + BLOCK_OFFSET(block); |
| tran_low_t *qcoeff = p->qcoeff + BLOCK_OFFSET(block); |
| tran_low_t *dqcoeff = p->dqcoeff + BLOCK_OFFSET(block); |
| update_coeff_eob_fast(&eob, av1_get_tx_scale(tx_size), p->dequant_QTX, scan, |
| tcoeff, qcoeff, dqcoeff); |
| p->eobs[block] = eob; |
| } |
| |
| const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); |
| const PLANE_TYPE plane_type = get_plane_type(plane); |
| const LV_MAP_COEFF_COST *const coeff_costs = |
| &x->coeff_costs.coeff_costs[txs_ctx][plane_type]; |
| if (eob == 0) { |
| return coeff_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][1]; |
| } |
| |
| const MACROBLOCKD *const xd = &x->e_mbd; |
| const TX_CLASS tx_class = tx_type_to_class[tx_type]; |
| |
| return warehouse_efficients_txb_laplacian( |
| x, plane, block, tx_size, txb_ctx, eob, plane_type, coeff_costs, xd, |
| tx_type, tx_class, reduced_tx_set_used); |
| } |
