| /* |
| * Copyright (c) 2017, 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/encodetxb.h" |
| |
| #include "aom_ports/mem.h" |
| #include "av1/common/blockd.h" |
| #include "av1/common/idct.h" |
| #include "av1/common/pred_common.h" |
| #include "av1/common/scan.h" |
| #include "av1/encoder/bitstream.h" |
| #include "av1/encoder/cost.h" |
| #include "av1/encoder/encodeframe.h" |
| #include "av1/encoder/hash.h" |
| #include "av1/encoder/rdopt.h" |
| #include "av1/encoder/tokenize.h" |
| |
| #if CONFIG_HTB_TRELLIS |
| static int hbt_needs_init = 1; |
| static CRC32C crc_calculator; |
| static const int HBT_EOB = 16; // also the length in opt_qcoeff |
| static const int HBT_TABLE_SIZE = 65536; // 16 bit: holds 65536 'arrays' |
| static const int HBT_ARRAY_LENGTH = 256; // 8 bit: 256 entries |
| // If removed in hbt_create_hashes or increased beyond int8_t, widen deltas type |
| static const int HBT_KICKOUT = 3; |
| |
| typedef struct OptTxbQcoeff { |
| // Use larger type if larger/no kickout value is used in hbt_create_hashes |
| int8_t deltas[16]; |
| uint32_t hbt_qc_hash; |
| uint32_t hbt_ctx_hash; |
| int init; |
| int rate_cost; |
| } OptTxbQcoeff; |
| |
| OptTxbQcoeff *hbt_hash_table; |
| #endif // CONFIG_HTB_TRELLIS |
| |
| typedef struct LevelDownStats { |
| int update; |
| tran_low_t low_qc; |
| tran_low_t low_dqc; |
| int64_t dist0; |
| int rate; |
| int rate_low; |
| int64_t dist; |
| int64_t dist_low; |
| int64_t rd; |
| int64_t rd_low; |
| int64_t nz_rd; |
| int64_t rd_diff; |
| int cost_diff; |
| int64_t dist_diff; |
| int new_eob; |
| } LevelDownStats; |
| |
| static INLINE int get_dqv(const int16_t *dequant, int coeff_idx, |
| const qm_val_t *iqmatrix) { |
| int dqv = dequant[!!coeff_idx]; |
| if (iqmatrix != NULL) |
| dqv = |
| ((iqmatrix[coeff_idx] * dqv) + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS; |
| return dqv; |
| } |
| |
| void av1_alloc_txb_buf(AV1_COMP *cpi) { |
| AV1_COMMON *cm = &cpi->common; |
| int size = ((cm->mi_rows >> cm->seq_params.mib_size_log2) + 1) * |
| ((cm->mi_cols >> cm->seq_params.mib_size_log2) + 1); |
| |
| av1_free_txb_buf(cpi); |
| // TODO(jingning): This should be further reduced. |
| CHECK_MEM_ERROR(cm, cpi->coeff_buffer_base, |
| aom_memalign(32, sizeof(*cpi->coeff_buffer_base) * size)); |
| } |
| |
| void av1_free_txb_buf(AV1_COMP *cpi) { aom_free(cpi->coeff_buffer_base); } |
| |
| static void write_golomb(aom_writer *w, int level) { |
| int x = level + 1; |
| int i = x; |
| int length = 0; |
| |
| while (i) { |
| i >>= 1; |
| ++length; |
| } |
| assert(length > 0); |
| |
| for (i = 0; i < length - 1; ++i) aom_write_bit(w, 0); |
| |
| for (i = length - 1; i >= 0; --i) aom_write_bit(w, (x >> i) & 0x01); |
| } |
| |
| static INLINE tran_low_t get_lower_coeff(tran_low_t qc) { |
| if (qc == 0) { |
| return 0; |
| } |
| return qc > 0 ? qc - 1 : qc + 1; |
| } |
| |
| static INLINE tran_low_t qcoeff_to_dqcoeff(tran_low_t qc, int coeff_idx, |
| int dqv, int shift, |
| const qm_val_t *iqmatrix) { |
| int sign = qc < 0 ? -1 : 1; |
| if (iqmatrix != NULL) |
| dqv = |
| ((iqmatrix[coeff_idx] * dqv) + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS; |
| return sign * ((abs(qc) * dqv) >> shift); |
| } |
| |
| static INLINE int64_t get_coeff_dist(tran_low_t tcoeff, tran_low_t dqcoeff, |
| int shift) { |
| const int64_t diff = (tcoeff - dqcoeff) * (1 << shift); |
| const int64_t error = diff * diff; |
| return error; |
| } |
| |
| static const int8_t eob_to_pos_small[33] = { |
| 0, 1, 2, // 0-2 |
| 3, 3, // 3-4 |
| 4, 4, 4, 4, // 5-8 |
| 5, 5, 5, 5, 5, 5, 5, 5, // 9-16 |
| 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 // 17-32 |
| }; |
| |
| static const int8_t eob_to_pos_large[17] = { |
| 6, // place holder |
| 7, // 33-64 |
| 8, 8, // 65-128 |
| 9, 9, 9, 9, // 129-256 |
| 10, 10, 10, 10, 10, 10, 10, 10, // 257-512 |
| 11 // 513- |
| }; |
| |
| static INLINE int get_eob_pos_token(const int eob, int *const extra) { |
| int t; |
| |
| if (eob < 33) { |
| t = eob_to_pos_small[eob]; |
| } else { |
| const int e = AOMMIN((eob - 1) >> 5, 16); |
| t = eob_to_pos_large[e]; |
| } |
| |
| *extra = eob - av1_eob_group_start[t]; |
| |
| return t; |
| } |
| |
| #if CONFIG_ENTROPY_STATS |
| void av1_update_eob_context(int cdf_idx, int eob, TX_SIZE tx_size, |
| TX_CLASS tx_class, PLANE_TYPE plane, |
| FRAME_CONTEXT *ec_ctx, FRAME_COUNTS *counts, |
| uint8_t allow_update_cdf) { |
| #else |
| void av1_update_eob_context(int eob, TX_SIZE tx_size, TX_CLASS tx_class, |
| PLANE_TYPE plane, FRAME_CONTEXT *ec_ctx, |
| uint8_t allow_update_cdf) { |
| #endif |
| int eob_extra; |
| const int eob_pt = get_eob_pos_token(eob, &eob_extra); |
| TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); |
| |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const int eob_multi_ctx = (tx_class == TX_CLASS_2D) ? 0 : 1; |
| |
| switch (eob_multi_size) { |
| case 0: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi16[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) |
| update_cdf(ec_ctx->eob_flag_cdf16[plane][eob_multi_ctx], eob_pt - 1, 5); |
| break; |
| case 1: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi32[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) |
| update_cdf(ec_ctx->eob_flag_cdf32[plane][eob_multi_ctx], eob_pt - 1, 6); |
| break; |
| case 2: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi64[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) |
| update_cdf(ec_ctx->eob_flag_cdf64[plane][eob_multi_ctx], eob_pt - 1, 7); |
| break; |
| case 3: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi128[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) { |
| update_cdf(ec_ctx->eob_flag_cdf128[plane][eob_multi_ctx], eob_pt - 1, |
| 8); |
| } |
| break; |
| case 4: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi256[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) { |
| update_cdf(ec_ctx->eob_flag_cdf256[plane][eob_multi_ctx], eob_pt - 1, |
| 9); |
| } |
| break; |
| case 5: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi512[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) { |
| update_cdf(ec_ctx->eob_flag_cdf512[plane][eob_multi_ctx], eob_pt - 1, |
| 10); |
| } |
| break; |
| case 6: |
| default: |
| #if CONFIG_ENTROPY_STATS |
| ++counts->eob_multi1024[cdf_idx][plane][eob_multi_ctx][eob_pt - 1]; |
| #endif |
| if (allow_update_cdf) { |
| update_cdf(ec_ctx->eob_flag_cdf1024[plane][eob_multi_ctx], eob_pt - 1, |
| 11); |
| } |
| break; |
| } |
| |
| if (av1_eob_offset_bits[eob_pt] > 0) { |
| int eob_ctx = eob_pt - 3; |
| int eob_shift = av1_eob_offset_bits[eob_pt] - 1; |
| int bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; |
| #if CONFIG_ENTROPY_STATS |
| counts->eob_extra[cdf_idx][txs_ctx][plane][eob_pt][bit]++; |
| #endif // CONFIG_ENTROPY_STATS |
| if (allow_update_cdf) |
| update_cdf(ec_ctx->eob_extra_cdf[txs_ctx][plane][eob_ctx], bit, 2); |
| } |
| } |
| |
| static int get_eob_cost(int eob, const LV_MAP_EOB_COST *txb_eob_costs, |
| const LV_MAP_COEFF_COST *txb_costs, TX_CLASS tx_class) { |
| int eob_extra; |
| const int eob_pt = get_eob_pos_token(eob, &eob_extra); |
| int eob_cost = 0; |
| const int eob_multi_ctx = (tx_class == TX_CLASS_2D) ? 0 : 1; |
| eob_cost = txb_eob_costs->eob_cost[eob_multi_ctx][eob_pt - 1]; |
| |
| if (av1_eob_offset_bits[eob_pt] > 0) { |
| const int eob_ctx = eob_pt - 3; |
| const int eob_shift = av1_eob_offset_bits[eob_pt] - 1; |
| const int bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; |
| eob_cost += txb_costs->eob_extra_cost[eob_ctx][bit]; |
| const int offset_bits = av1_eob_offset_bits[eob_pt]; |
| if (offset_bits > 1) eob_cost += av1_cost_literal(offset_bits - 1); |
| } |
| return eob_cost; |
| } |
| |
| static INLINE int get_sign_bit_cost(tran_low_t qc, int coeff_idx, |
| const int (*dc_sign_cost)[2], |
| int dc_sign_ctx) { |
| if (coeff_idx == 0) { |
| const int sign = (qc < 0) ? 1 : 0; |
| return dc_sign_cost[dc_sign_ctx][sign]; |
| } |
| return av1_cost_literal(1); |
| } |
| |
| static const int golomb_bits_cost[32] = { |
| 0, 512, 512 * 3, 512 * 3, 512 * 5, 512 * 5, 512 * 5, 512 * 5, |
| 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, |
| 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, |
| 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9 |
| }; |
| static const int golomb_cost_diff[32] = { |
| 0, 512, 512 * 2, 0, 512 * 2, 0, 0, 0, 512 * 2, 0, 0, 0, 0, 0, 0, 0, |
| 512 * 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
| }; |
| |
| static INLINE int get_golomb_cost(int abs_qc) { |
| if (abs_qc >= 1 + NUM_BASE_LEVELS + COEFF_BASE_RANGE) { |
| const int r = abs_qc - COEFF_BASE_RANGE - NUM_BASE_LEVELS; |
| const int length = get_msb(r) + 1; |
| return av1_cost_literal(2 * length - 1); |
| } |
| return 0; |
| } |
| |
| static INLINE int get_br_cost_with_diff(tran_low_t level, const int *coeff_lps, |
| int *diff) { |
| const int base_range = AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); |
| int golomb_bits = 0; |
| if (level <= COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS) |
| *diff += coeff_lps[base_range + COEFF_BASE_RANGE + 1]; |
| |
| if (level >= COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS) { |
| int r = level - COEFF_BASE_RANGE - NUM_BASE_LEVELS; |
| if (r < 32) { |
| golomb_bits = golomb_bits_cost[r]; |
| *diff += golomb_cost_diff[r]; |
| } else { |
| golomb_bits = get_golomb_cost(level); |
| *diff += (r & (r - 1)) == 0 ? 1024 : 0; |
| } |
| } |
| |
| return coeff_lps[base_range] + golomb_bits; |
| } |
| |
| static INLINE int get_br_cost(tran_low_t level, const int *coeff_lps) { |
| const int base_range = AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); |
| return coeff_lps[base_range] + get_golomb_cost(level); |
| } |
| |
| static int get_coeff_cost(const tran_low_t qc, const int scan_idx, |
| const int is_eob, const TxbInfo *const txb_info, |
| const LV_MAP_COEFF_COST *const txb_costs, |
| const int coeff_ctx, const TX_CLASS tx_class) { |
| const TXB_CTX *const txb_ctx = txb_info->txb_ctx; |
| const int is_nz = (qc != 0); |
| const tran_low_t abs_qc = abs(qc); |
| int cost = 0; |
| const int16_t *const scan = txb_info->scan_order->scan; |
| const int pos = scan[scan_idx]; |
| |
| if (is_eob) { |
| cost += txb_costs->base_eob_cost[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; |
| } else { |
| cost += txb_costs->base_cost[coeff_ctx][AOMMIN(abs_qc, 3)]; |
| } |
| if (is_nz) { |
| cost += get_sign_bit_cost(qc, scan_idx, txb_costs->dc_sign_cost, |
| txb_ctx->dc_sign_ctx); |
| |
| if (abs_qc > NUM_BASE_LEVELS) { |
| const int ctx = |
| get_br_ctx(txb_info->levels, pos, txb_info->bwl, tx_class); |
| cost += get_br_cost(abs_qc, txb_costs->lps_cost[ctx]); |
| } |
| } |
| return cost; |
| } |
| |
| static INLINE int get_nz_map_ctx(const uint8_t *const levels, |
| const int coeff_idx, const int bwl, |
| const int height, const int scan_idx, |
| const int is_eob, const TX_SIZE tx_size, |
| const TX_CLASS tx_class) { |
| if (is_eob) { |
| if (scan_idx == 0) return 0; |
| if (scan_idx <= (height << bwl) / 8) return 1; |
| if (scan_idx <= (height << bwl) / 4) return 2; |
| return 3; |
| } |
| const int stats = |
| get_nz_mag(levels + get_padded_idx(coeff_idx, bwl), bwl, tx_class); |
| return get_nz_map_ctx_from_stats(stats, coeff_idx, bwl, tx_size, tx_class); |
| } |
| |
| static void get_dist_cost_stats(LevelDownStats *const stats, const int scan_idx, |
| const int is_eob, |
| const LV_MAP_COEFF_COST *const txb_costs, |
| const TxbInfo *const txb_info, |
| const TX_CLASS tx_class) { |
| const int16_t *const scan = txb_info->scan_order->scan; |
| const int coeff_idx = scan[scan_idx]; |
| const tran_low_t qc = txb_info->qcoeff[coeff_idx]; |
| const uint8_t *const levels = txb_info->levels; |
| stats->new_eob = -1; |
| stats->update = 0; |
| stats->rd_low = 0; |
| stats->rd = 0; |
| stats->nz_rd = 0; |
| stats->dist_low = 0; |
| stats->rate_low = 0; |
| stats->low_qc = 0; |
| |
| const tran_low_t tqc = txb_info->tcoeff[coeff_idx]; |
| const int dqv = txb_info->dequant[coeff_idx != 0]; |
| const int coeff_ctx = |
| get_nz_map_ctx(levels, coeff_idx, txb_info->bwl, txb_info->height, |
| scan_idx, is_eob, txb_info->tx_size, tx_class); |
| const int qc_cost = get_coeff_cost(qc, scan_idx, is_eob, txb_info, txb_costs, |
| coeff_ctx, tx_class); |
| assert(qc != 0); |
| const tran_low_t dqc = qcoeff_to_dqcoeff(qc, coeff_idx, dqv, txb_info->shift, |
| txb_info->iqmatrix); |
| const int64_t dqc_dist = get_coeff_dist(tqc, dqc, txb_info->shift); |
| |
| // distortion difference when coefficient is quantized to 0 |
| const tran_low_t dqc0 = |
| qcoeff_to_dqcoeff(0, coeff_idx, dqv, txb_info->shift, txb_info->iqmatrix); |
| |
| stats->dist0 = get_coeff_dist(tqc, dqc0, txb_info->shift); |
| stats->dist = dqc_dist - stats->dist0; |
| stats->rate = qc_cost; |
| |
| stats->rd = RDCOST(txb_info->rdmult, stats->rate, stats->dist); |
| |
| stats->low_qc = get_lower_coeff(qc); |
| |
| if (is_eob && stats->low_qc == 0) { |
| stats->rd_low = stats->rd; // disable selection of low_qc in this case. |
| } else { |
| if (stats->low_qc == 0) { |
| stats->dist_low = 0; |
| } else { |
| stats->low_dqc = qcoeff_to_dqcoeff(stats->low_qc, coeff_idx, dqv, |
| txb_info->shift, txb_info->iqmatrix); |
| const int64_t low_dqc_dist = |
| get_coeff_dist(tqc, stats->low_dqc, txb_info->shift); |
| stats->dist_low = low_dqc_dist - stats->dist0; |
| } |
| const int low_qc_cost = |
| get_coeff_cost(stats->low_qc, scan_idx, is_eob, txb_info, txb_costs, |
| coeff_ctx, tx_class); |
| stats->rate_low = low_qc_cost; |
| stats->rd_low = RDCOST(txb_info->rdmult, stats->rate_low, stats->dist_low); |
| } |
| } |
| |
| static void get_dist_cost_stats_with_eob( |
| LevelDownStats *const stats, const int scan_idx, |
| const LV_MAP_COEFF_COST *const txb_costs, const TxbInfo *const txb_info, |
| const TX_CLASS tx_class) { |
| const int is_eob = 0; |
| get_dist_cost_stats(stats, scan_idx, is_eob, txb_costs, txb_info, tx_class); |
| |
| const int16_t *const scan = txb_info->scan_order->scan; |
| const int coeff_idx = scan[scan_idx]; |
| const tran_low_t qc = txb_info->qcoeff[coeff_idx]; |
| const int coeff_ctx_temp = get_nz_map_ctx( |
| txb_info->levels, coeff_idx, txb_info->bwl, txb_info->height, scan_idx, 1, |
| txb_info->tx_size, tx_class); |
| const int qc_eob_cost = get_coeff_cost(qc, scan_idx, 1, txb_info, txb_costs, |
| coeff_ctx_temp, tx_class); |
| int64_t rd_eob = RDCOST(txb_info->rdmult, qc_eob_cost, stats->dist); |
| if (stats->low_qc != 0) { |
| const int low_qc_eob_cost = |
| get_coeff_cost(stats->low_qc, scan_idx, 1, txb_info, txb_costs, |
| coeff_ctx_temp, tx_class); |
| int64_t rd_eob_low = |
| RDCOST(txb_info->rdmult, low_qc_eob_cost, stats->dist_low); |
| rd_eob = (rd_eob > rd_eob_low) ? rd_eob_low : rd_eob; |
| } |
| |
| stats->nz_rd = AOMMIN(stats->rd_low, stats->rd) - rd_eob; |
| } |
| |
| static INLINE void update_qcoeff(const int coeff_idx, const tran_low_t qc, |
| const TxbInfo *const txb_info) { |
| txb_info->qcoeff[coeff_idx] = qc; |
| txb_info->levels[get_padded_idx(coeff_idx, txb_info->bwl)] = |
| (uint8_t)clamp(abs(qc), 0, INT8_MAX); |
| } |
| |
| static INLINE void update_coeff(const int coeff_idx, const tran_low_t qc, |
| const TxbInfo *const txb_info) { |
| update_qcoeff(coeff_idx, qc, txb_info); |
| const int dqv = txb_info->dequant[coeff_idx != 0]; |
| txb_info->dqcoeff[coeff_idx] = qcoeff_to_dqcoeff( |
| qc, coeff_idx, dqv, txb_info->shift, txb_info->iqmatrix); |
| } |
| |
| void av1_txb_init_levels_c(const tran_low_t *const coeff, const int width, |
| const int height, uint8_t *const levels) { |
| const int stride = width + TX_PAD_HOR; |
| uint8_t *ls = levels; |
| |
| memset(levels + stride * height, 0, |
| sizeof(*levels) * (TX_PAD_BOTTOM * stride + TX_PAD_END)); |
| |
| for (int i = 0; i < height; i++) { |
| for (int j = 0; j < width; j++) { |
| *ls++ = (uint8_t)clamp(abs(coeff[i * width + j]), 0, INT8_MAX); |
| } |
| for (int j = 0; j < TX_PAD_HOR; j++) { |
| *ls++ = 0; |
| } |
| } |
| } |
| |
| void av1_get_nz_map_contexts_c(const uint8_t *const levels, |
| const int16_t *const scan, const uint16_t eob, |
| const TX_SIZE tx_size, const TX_CLASS tx_class, |
| int8_t *const coeff_contexts) { |
| const int bwl = get_txb_bwl(tx_size); |
| const int height = get_txb_high(tx_size); |
| for (int i = 0; i < eob; ++i) { |
| const int pos = scan[i]; |
| coeff_contexts[pos] = get_nz_map_ctx(levels, pos, bwl, height, i, |
| i == eob - 1, tx_size, tx_class); |
| } |
| } |
| |
| void av1_write_coeffs_txb(const AV1_COMMON *const cm, MACROBLOCKD *xd, |
| aom_writer *w, int blk_row, int blk_col, int plane, |
| TX_SIZE tx_size, const tran_low_t *tcoeff, |
| uint16_t eob, TXB_CTX *txb_ctx) { |
| const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); |
| FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
| aom_write_symbol(w, eob == 0, |
| ec_ctx->txb_skip_cdf[txs_ctx][txb_ctx->txb_skip_ctx], 2); |
| if (eob == 0) return; |
| const PLANE_TYPE plane_type = get_plane_type(plane); |
| const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col, |
| tx_size, cm->reduced_tx_set_used); |
| const TX_CLASS tx_class = tx_type_to_class[tx_type]; |
| const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); |
| const int16_t *const scan = scan_order->scan; |
| int c; |
| const int bwl = get_txb_bwl(tx_size); |
| const int width = get_txb_wide(tx_size); |
| const int height = get_txb_high(tx_size); |
| |
| 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]); |
| av1_txb_init_levels(tcoeff, width, height, levels); |
| |
| av1_write_tx_type(cm, xd, blk_row, blk_col, plane, tx_size, w); |
| |
| int eob_extra; |
| const int eob_pt = get_eob_pos_token(eob, &eob_extra); |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const int eob_multi_ctx = (tx_class == TX_CLASS_2D) ? 0 : 1; |
| switch (eob_multi_size) { |
| case 0: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf16[plane_type][eob_multi_ctx], 5); |
| break; |
| case 1: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf32[plane_type][eob_multi_ctx], 6); |
| break; |
| case 2: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf64[plane_type][eob_multi_ctx], 7); |
| break; |
| case 3: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf128[plane_type][eob_multi_ctx], 8); |
| break; |
| case 4: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf256[plane_type][eob_multi_ctx], 9); |
| break; |
| case 5: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf512[plane_type][eob_multi_ctx], 10); |
| break; |
| default: |
| aom_write_symbol(w, eob_pt - 1, |
| ec_ctx->eob_flag_cdf1024[plane_type][eob_multi_ctx], 11); |
| break; |
| } |
| |
| const int eob_offset_bits = av1_eob_offset_bits[eob_pt]; |
| if (eob_offset_bits > 0) { |
| const int eob_ctx = eob_pt - 3; |
| int eob_shift = eob_offset_bits - 1; |
| int bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; |
| aom_write_symbol(w, bit, |
| ec_ctx->eob_extra_cdf[txs_ctx][plane_type][eob_ctx], 2); |
| for (int i = 1; i < eob_offset_bits; i++) { |
| eob_shift = eob_offset_bits - 1 - i; |
| bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; |
| aom_write_bit(w, bit); |
| } |
| } |
| |
| av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, coeff_contexts); |
| |
| for (c = eob - 1; c >= 0; --c) { |
| const int pos = scan[c]; |
| const int coeff_ctx = coeff_contexts[pos]; |
| const tran_low_t v = tcoeff[pos]; |
| const tran_low_t level = abs(v); |
| |
| if (c == eob - 1) { |
| aom_write_symbol( |
| w, AOMMIN(level, 3) - 1, |
| ec_ctx->coeff_base_eob_cdf[txs_ctx][plane_type][coeff_ctx], 3); |
| } else { |
| aom_write_symbol(w, AOMMIN(level, 3), |
| ec_ctx->coeff_base_cdf[txs_ctx][plane_type][coeff_ctx], |
| 4); |
| } |
| if (level > NUM_BASE_LEVELS) { |
| // level is above 1. |
| const int base_range = level - 1 - NUM_BASE_LEVELS; |
| const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class); |
| aom_cdf_prob *cdf = |
| ec_ctx->coeff_br_cdf[AOMMIN(txs_ctx, TX_32X32)][plane_type][br_ctx]; |
| for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { |
| const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); |
| aom_write_symbol(w, k, cdf, BR_CDF_SIZE); |
| if (k < BR_CDF_SIZE - 1) break; |
| } |
| } |
| } |
| |
| // Loop to code all signs in the transform block, |
| // starting with the sign of DC (if applicable) |
| for (c = 0; c < eob; ++c) { |
| const tran_low_t v = tcoeff[scan[c]]; |
| const tran_low_t level = abs(v); |
| const int sign = (v < 0) ? 1 : 0; |
| if (level) { |
| if (c == 0) { |
| aom_write_symbol( |
| w, sign, ec_ctx->dc_sign_cdf[plane_type][txb_ctx->dc_sign_ctx], 2); |
| } else { |
| aom_write_bit(w, sign); |
| } |
| if (level > COEFF_BASE_RANGE + NUM_BASE_LEVELS) |
| write_golomb(w, level - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS); |
| } |
| } |
| } |
| |
| typedef struct encode_txb_args { |
| const AV1_COMMON *cm; |
| MACROBLOCK *x; |
| aom_writer *w; |
| } ENCODE_TXB_ARGS; |
| |
| static void write_coeffs_txb_wrap(const AV1_COMMON *cm, MACROBLOCK *x, |
| aom_writer *w, int plane, int block, |
| int blk_row, int blk_col, TX_SIZE tx_size) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| const CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; |
| const int txb_offset = |
| x->mbmi_ext_frame->cb_offset / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); |
| const tran_low_t *tcoeff_txb = |
| cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset; |
| const uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; |
| const uint8_t *txb_skip_ctx_txb = |
| cb_coef_buff->txb_skip_ctx[plane] + txb_offset; |
| const int *dc_sign_ctx_txb = cb_coef_buff->dc_sign_ctx[plane] + txb_offset; |
| const tran_low_t *tcoeff = BLOCK_OFFSET(tcoeff_txb, block); |
| const uint16_t eob = eob_txb[block]; |
| TXB_CTX txb_ctx = { txb_skip_ctx_txb[block], dc_sign_ctx_txb[block] }; |
| av1_write_coeffs_txb(cm, xd, w, blk_row, blk_col, plane, tx_size, tcoeff, eob, |
| &txb_ctx); |
| } |
| |
| void av1_write_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x, int mi_row, |
| int mi_col, aom_writer *w, BLOCK_SIZE bsize) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| const int num_planes = av1_num_planes(cm); |
| int block[MAX_MB_PLANE] = { 0 }; |
| int row, col; |
| assert(bsize == get_plane_block_size(bsize, xd->plane[0].subsampling_x, |
| xd->plane[0].subsampling_y)); |
| const int max_blocks_wide = max_block_wide(xd, bsize, 0); |
| const int max_blocks_high = max_block_high(xd, bsize, 0); |
| const BLOCK_SIZE max_unit_bsize = BLOCK_64X64; |
| int mu_blocks_wide = block_size_wide[max_unit_bsize] >> tx_size_wide_log2[0]; |
| int mu_blocks_high = block_size_high[max_unit_bsize] >> tx_size_high_log2[0]; |
| mu_blocks_wide = AOMMIN(max_blocks_wide, mu_blocks_wide); |
| mu_blocks_high = AOMMIN(max_blocks_high, mu_blocks_high); |
| |
| for (row = 0; row < max_blocks_high; row += mu_blocks_high) { |
| for (col = 0; col < max_blocks_wide; col += mu_blocks_wide) { |
| for (int plane = 0; plane < num_planes; ++plane) { |
| const struct macroblockd_plane *const pd = &xd->plane[plane]; |
| if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x, |
| pd->subsampling_y)) |
| continue; |
| const TX_SIZE tx_size = av1_get_tx_size(plane, xd); |
| const int stepr = tx_size_high_unit[tx_size]; |
| const int stepc = tx_size_wide_unit[tx_size]; |
| const int step = stepr * stepc; |
| |
| const int unit_height = ROUND_POWER_OF_TWO( |
| AOMMIN(mu_blocks_high + row, max_blocks_high), pd->subsampling_y); |
| const int unit_width = ROUND_POWER_OF_TWO( |
| AOMMIN(mu_blocks_wide + col, max_blocks_wide), pd->subsampling_x); |
| for (int blk_row = row >> pd->subsampling_y; blk_row < unit_height; |
| blk_row += stepr) { |
| for (int blk_col = col >> pd->subsampling_x; blk_col < unit_width; |
| blk_col += stepc) { |
| write_coeffs_txb_wrap(cm, x, w, plane, block[plane], blk_row, |
| blk_col, tx_size); |
| block[plane] += step; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| // TODO(angiebird): use this function whenever it's possible |
| static int get_tx_type_cost(const AV1_COMMON *cm, const MACROBLOCK *x, |
| const MACROBLOCKD *xd, int plane, TX_SIZE tx_size, |
| TX_TYPE tx_type) { |
| 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, cm->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, cm->reduced_tx_set_used); |
| if (is_inter) { |
| if (ext_tx_set > 0) |
| return x->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->intra_tx_type_costs[ext_tx_set][square_tx_size][intra_dir] |
| [tx_type]; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static AOM_FORCE_INLINE int warehouse_efficients_txb( |
| const AV1_COMMON *const cm, 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) { |
| const tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, 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->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(cm, x, xd, plane, tx_size, tx_type); |
| |
| 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 = v >> 31; |
| 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); |
| const int cost0 = 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]); |
| } |
| } |
| cost += cost0; |
| } |
| if (c == 0) { |
| const int pos = scan[c]; |
| const tran_low_t v = qcoeff[pos]; |
| const int coeff_ctx = coeff_contexts[pos]; |
| const int sign = v >> 31; |
| 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(const AV1_COMMON *const cm, 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 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[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]; |
| |
| #define WAREHOUSE_EFFICIENTS_TXB_CASE(tx_class_literal) \ |
| case tx_class_literal: \ |
| return warehouse_efficients_txb(cm, x, plane, block, tx_size, txb_ctx, p, \ |
| eob, plane_type, coeff_costs, xd, tx_type, \ |
| tx_class_literal); |
| switch (tx_class) { |
| WAREHOUSE_EFFICIENTS_TXB_CASE(TX_CLASS_2D); |
| WAREHOUSE_EFFICIENTS_TXB_CASE(TX_CLASS_HORIZ); |
| WAREHOUSE_EFFICIENTS_TXB_CASE(TX_CLASS_VERT); |
| #undef WAREHOUSE_EFFICIENTS_TXB_CASE |
| default: assert(false); return 0; |
| } |
| } |
| |
| static int optimize_txb(TxbInfo *txb_info, const LV_MAP_COEFF_COST *txb_costs, |
| const LV_MAP_EOB_COST *txb_eob_costs, int *rate_cost) { |
| int update = 0; |
| if (txb_info->eob == 0) return update; |
| const int16_t *const scan = txb_info->scan_order->scan; |
| // forward optimize the nz_map` |
| const int init_eob = txb_info->eob; |
| const TX_CLASS tx_class = tx_type_to_class[txb_info->tx_type]; |
| const int eob_cost = |
| get_eob_cost(init_eob, txb_eob_costs, txb_costs, tx_class); |
| |
| // backward optimize the level-k map |
| int accu_rate = eob_cost; |
| int64_t accu_dist = 0; |
| int64_t prev_eob_rd_cost = INT64_MAX; |
| int64_t cur_eob_rd_cost = 0; |
| |
| { |
| const int si = init_eob - 1; |
| const int coeff_idx = scan[si]; |
| LevelDownStats stats; |
| get_dist_cost_stats(&stats, si, si == init_eob - 1, txb_costs, txb_info, |
| tx_class); |
| if ((stats.rd_low < stats.rd) && (stats.low_qc != 0)) { |
| update = 1; |
| update_coeff(coeff_idx, stats.low_qc, txb_info); |
| accu_rate += stats.rate_low; |
| accu_dist += stats.dist_low; |
| } else { |
| accu_rate += stats.rate; |
| accu_dist += stats.dist; |
| } |
| } |
| |
| int si = init_eob - 2; |
| int8_t has_nz_tail = 0; |
| // eob is not fixed |
| for (; si >= 0 && has_nz_tail < 2; --si) { |
| assert(si != init_eob - 1); |
| const int coeff_idx = scan[si]; |
| tran_low_t qc = txb_info->qcoeff[coeff_idx]; |
| |
| if (qc == 0) { |
| const int coeff_ctx = |
| get_lower_levels_ctx(txb_info->levels, coeff_idx, txb_info->bwl, |
| txb_info->tx_size, tx_class); |
| accu_rate += txb_costs->base_cost[coeff_ctx][0]; |
| } else { |
| LevelDownStats stats; |
| get_dist_cost_stats_with_eob(&stats, si, txb_costs, txb_info, tx_class); |
| // check if it is better to make this the last significant coefficient |
| int cur_eob_rate = |
| get_eob_cost(si + 1, txb_eob_costs, txb_costs, tx_class); |
| cur_eob_rd_cost = RDCOST(txb_info->rdmult, cur_eob_rate, 0); |
| prev_eob_rd_cost = |
| RDCOST(txb_info->rdmult, accu_rate, accu_dist) + stats.nz_rd; |
| if (cur_eob_rd_cost <= prev_eob_rd_cost) { |
| update = 1; |
| for (int j = si + 1; j < txb_info->eob; j++) { |
| const int coeff_pos_j = scan[j]; |
| update_coeff(coeff_pos_j, 0, txb_info); |
| } |
| txb_info->eob = si + 1; |
| |
| // rerun cost calculation due to change of eob |
| accu_rate = cur_eob_rate; |
| accu_dist = 0; |
| get_dist_cost_stats(&stats, si, 1, txb_costs, txb_info, tx_class); |
| if ((stats.rd_low < stats.rd) && (stats.low_qc != 0)) { |
| update = 1; |
| update_coeff(coeff_idx, stats.low_qc, txb_info); |
| accu_rate += stats.rate_low; |
| accu_dist += stats.dist_low; |
| } else { |
| accu_rate += stats.rate; |
| accu_dist += stats.dist; |
| } |
| |
| // reset non zero tail when new eob is found |
| has_nz_tail = 0; |
| } else { |
| int bUpdCoeff = 0; |
| if (stats.rd_low < stats.rd) { |
| if ((si < txb_info->eob - 1)) { |
| bUpdCoeff = 1; |
| update = 1; |
| } |
| } else { |
| ++has_nz_tail; |
| } |
| |
| if (bUpdCoeff) { |
| update_coeff(coeff_idx, stats.low_qc, txb_info); |
| accu_rate += stats.rate_low; |
| accu_dist += stats.dist_low; |
| } else { |
| accu_rate += stats.rate; |
| accu_dist += stats.dist; |
| } |
| } |
| } |
| } // for (si) |
| |
| // eob is fixed |
| for (; si >= 0; --si) { |
| assert(si != init_eob - 1); |
| const int coeff_idx = scan[si]; |
| tran_low_t qc = txb_info->qcoeff[coeff_idx]; |
| |
| if (qc == 0) { |
| const int coeff_ctx = |
| get_lower_levels_ctx(txb_info->levels, coeff_idx, txb_info->bwl, |
| txb_info->tx_size, tx_class); |
| accu_rate += txb_costs->base_cost[coeff_ctx][0]; |
| } else { |
| LevelDownStats stats; |
| get_dist_cost_stats(&stats, si, 0, txb_costs, txb_info, tx_class); |
| |
| int bUpdCoeff = 0; |
| if (stats.rd_low < stats.rd) { |
| if ((si < txb_info->eob - 1)) { |
| bUpdCoeff = 1; |
| update = 1; |
| } |
| } |
| if (bUpdCoeff) { |
| update_coeff(coeff_idx, stats.low_qc, txb_info); |
| accu_rate += stats.rate_low; |
| accu_dist += stats.dist_low; |
| } else { |
| accu_rate += stats.rate; |
| accu_dist += stats.dist; |
| } |
| } |
| } // for (si) |
| |
| int non_zero_blk_rate = |
| txb_costs->txb_skip_cost[txb_info->txb_ctx->txb_skip_ctx][0]; |
| prev_eob_rd_cost = |
| RDCOST(txb_info->rdmult, accu_rate + non_zero_blk_rate, accu_dist); |
| |
| int zero_blk_rate = |
| txb_costs->txb_skip_cost[txb_info->txb_ctx->txb_skip_ctx][1]; |
| int64_t zero_blk_rd_cost = RDCOST(txb_info->rdmult, zero_blk_rate, 0); |
| if (zero_blk_rd_cost <= prev_eob_rd_cost) { |
| update = 1; |
| for (int j = 0; j < txb_info->eob; j++) { |
| const int coeff_pos_j = scan[j]; |
| update_coeff(coeff_pos_j, 0, txb_info); |
| } |
| txb_info->eob = 0; |
| } |
| |
| // record total rate cost |
| *rate_cost = zero_blk_rd_cost <= prev_eob_rd_cost |
| ? zero_blk_rate |
| : accu_rate + non_zero_blk_rate; |
| |
| if (txb_info->eob > 0) { |
| *rate_cost += txb_info->tx_type_cost; |
| } |
| |
| return update; |
| } |
| |
| #if CONFIG_HTB_TRELLIS |
| static void hbt_init() { |
| hbt_hash_table = |
| aom_malloc(sizeof(OptTxbQcoeff) * HBT_TABLE_SIZE * HBT_ARRAY_LENGTH); |
| memset(hbt_hash_table, 0, |
| sizeof(OptTxbQcoeff) * HBT_TABLE_SIZE * HBT_ARRAY_LENGTH); |
| av1_crc32c_calculator_init(&crc_calculator); // 31 bit: qc & ctx |
| |
| hbt_needs_init = 0; |
| } |
| |
| void hbt_destroy() { aom_free(hbt_hash_table); } |
| |
| static int hbt_hash_miss(uint32_t hbt_ctx_hash, uint32_t hbt_qc_hash, |
| TxbInfo *txb_info, const LV_MAP_COEFF_COST *txb_costs, |
| const LV_MAP_EOB_COST *txb_eob_costs, |
| const struct macroblock_plane *p, int block, |
| int fast_mode, int *rate_cost) { |
| (void)fast_mode; |
| const int16_t *scan = txb_info->scan_order->scan; |
| int prev_eob = txb_info->eob; |
| assert(HBT_EOB <= 16); // Lengthen array if allowing longer eob. |
| int32_t prev_coeff[16]; |
| for (int i = 0; i < prev_eob; i++) { |
| prev_coeff[i] = txb_info->qcoeff[scan[i]]; |
| } |
| for (int i = prev_eob; i < HBT_EOB; i++) { |
| prev_coeff[i] = 0; // For compiler piece of mind. |
| } |
| |
| av1_txb_init_levels(txb_info->qcoeff, txb_info->width, txb_info->height, |
| txb_info->levels); |
| |
| const int update = |
| optimize_txb(txb_info, txb_costs, txb_eob_costs, rate_cost); |
| |
| // Overwrite old entry |
| uint16_t hbt_table_index = hbt_ctx_hash % HBT_TABLE_SIZE; |
| uint16_t hbt_array_index = hbt_qc_hash % HBT_ARRAY_LENGTH; |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .rate_cost = *rate_cost; |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index].init = 1; |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .hbt_qc_hash = hbt_qc_hash; |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .hbt_ctx_hash = hbt_ctx_hash; |
| assert(prev_eob >= txb_info->eob); // eob can't get longer |
| for (int i = 0; i < txb_info->eob; i++) { |
| // Record how coeff changed. Convention: towards zero is negative. |
| if (txb_info->qcoeff[scan[i]] > 0) |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i] = txb_info->qcoeff[scan[i]] - prev_coeff[i]; |
| else |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i] = prev_coeff[i] - txb_info->qcoeff[scan[i]]; |
| } |
| for (int i = txb_info->eob; i < prev_eob; i++) { |
| // If eob got shorter, record that all after it changed to zero. |
| if (prev_coeff[i] > 0) |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i] = -prev_coeff[i]; |
| else |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i] = prev_coeff[i]; |
| } |
| for (int i = prev_eob; i < HBT_EOB; i++) { |
| // Record 'no change' after optimized coefficients run out. |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i] = 0; |
| } |
| |
| if (update) { |
| p->eobs[block] = txb_info->eob; |
| p->txb_entropy_ctx[block] = av1_get_txb_entropy_context( |
| txb_info->qcoeff, txb_info->scan_order, txb_info->eob); |
| } |
| return txb_info->eob; |
| } |
| |
| static int hbt_hash_hit(uint32_t hbt_table_index, int hbt_array_index, |
| TxbInfo *txb_info, const struct macroblock_plane *p, |
| int block, int *rate_cost) { |
| const int16_t *scan = txb_info->scan_order->scan; |
| int new_eob = 0; |
| int update = 0; |
| |
| for (int i = 0; i < txb_info->eob; i++) { |
| // Delta convention is negatives go towards zero, so only apply those ones. |
| if (hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i] < 0) { |
| if (txb_info->qcoeff[scan[i]] > 0) |
| txb_info->qcoeff[scan[i]] += |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i]; |
| else |
| txb_info->qcoeff[scan[i]] -= |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .deltas[i]; |
| |
| update = 1; |
| update_coeff(scan[i], txb_info->qcoeff[scan[i]], txb_info); |
| } |
| if (txb_info->qcoeff[scan[i]]) new_eob = i + 1; |
| } |
| |
| // Rate_cost can be calculated here instead (av1_cost_coeffs_txb), but |
| // it is expensive and gives little benefit as long as qc_hash is high bit |
| *rate_cost = |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .rate_cost; |
| |
| if (update) { |
| txb_info->eob = new_eob; |
| p->eobs[block] = txb_info->eob; |
| p->txb_entropy_ctx[block] = av1_get_txb_entropy_context( |
| txb_info->qcoeff, txb_info->scan_order, txb_info->eob); |
| } |
| |
| return txb_info->eob; |
| } |
| |
| static int hbt_search_match(uint32_t hbt_ctx_hash, uint32_t hbt_qc_hash, |
| TxbInfo *txb_info, |
| const LV_MAP_COEFF_COST *txb_costs, |
| const LV_MAP_EOB_COST *txb_eob_costs, |
| const struct macroblock_plane *p, int block, |
| int fast_mode, int *rate_cost) { |
| // Check for qcoeff match |
| int hbt_array_index = hbt_qc_hash % HBT_ARRAY_LENGTH; |
| int hbt_table_index = hbt_ctx_hash % HBT_TABLE_SIZE; |
| |
| if (hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .hbt_qc_hash == hbt_qc_hash && |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .hbt_ctx_hash == hbt_ctx_hash && |
| hbt_hash_table[hbt_table_index * HBT_ARRAY_LENGTH + hbt_array_index] |
| .init) { |
| return hbt_hash_hit(hbt_table_index, hbt_array_index, txb_info, p, block, |
| rate_cost); |
| } else { |
| return hbt_hash_miss(hbt_ctx_hash, hbt_qc_hash, txb_info, txb_costs, |
| txb_eob_costs, p, block, fast_mode, rate_cost); |
| } |
| } |
| |
| static int hbt_create_hashes(TxbInfo *txb_info, |
| const LV_MAP_COEFF_COST *txb_costs, |
| const LV_MAP_EOB_COST *txb_eob_costs, |
| const struct macroblock_plane *p, int block, |
| int fast_mode, int *rate_cost) { |
| // Initialize hash table if needed. |
| if (hbt_needs_init) { |
| hbt_init(); |
| } |
| |
| //// Hash creation |
| uint8_t txb_hash_data[256]; // Asserts below to ensure enough space. |
| const int16_t *scan = txb_info->scan_order->scan; |
| uint8_t chunk = 0; |
| int hash_data_index = 0; |
| |
| // Make qc_hash. |
| int packing_index = 0; // needed for packing. |
| for (int i = 0; i < txb_info->eob; i++) { |
| tran_low_t prechunk = txb_info->qcoeff[scan[i]]; |
| |
| // Softening: Improves speed. Aligns with signed deltas. |
| if (prechunk < 0) prechunk *= -1; |
| |
| // Early kick out: Don't apply feature if there are large coeffs: |
| // If this kickout value is removed or raised beyond int8_t, |
| // widen deltas type in OptTxbQcoeff struct. |
| assert((int8_t)HBT_KICKOUT == HBT_KICKOUT); // If not, widen types. |
| if (prechunk > HBT_KICKOUT) { |
| av1_txb_init_levels(txb_info->qcoeff, txb_info->width, txb_info->height, |
| txb_info->levels); |
| |
| const int update = |
| optimize_txb(txb_info, txb_costs, txb_eob_costs, rate_cost); |
| |
| if (update) { |
| p->eobs[block] = txb_info->eob; |
| p->txb_entropy_ctx[block] = av1_get_txb_entropy_context( |
| txb_info->qcoeff, txb_info->scan_order, txb_info->eob); |
| } |
| return txb_info->eob; |
| } |
| |
| // Since coeffs are 0 to 3, only 2 bits are needed: pack into bytes |
| if (packing_index == 0) txb_hash_data[hash_data_index] = 0; |
| chunk = prechunk << packing_index; |
| packing_index += 2; |
| txb_hash_data[hash_data_index] |= chunk; |
| |
| // Full byte: |
| if (packing_index == 8) { |
| packing_index = 0; |
| hash_data_index++; |
| } |
| } |
| // Needed when packing_index != 0, to include final byte. |
| hash_data_index++; |
| assert(hash_data_index <= 64); |
| // 31 bit qc_hash: index to array |
| uint32_t hbt_qc_hash = |
| av1_get_crc32c_value(&crc_calculator, txb_hash_data, hash_data_index); |
| |
| // Make ctx_hash. |
| hash_data_index = 0; |
| tran_low_t prechunk; |
| |
| for (int i = 0; i < txb_info->eob; i++) { |
| // Save as magnitudes towards or away from zero. |
| if (txb_info->tcoeff[scan[i]] >= 0) |
| prechunk = txb_info->tcoeff[scan[i]] - txb_info->dqcoeff[scan[i]]; |
| else |
| prechunk = txb_info->dqcoeff[scan[i]] - txb_info->tcoeff[scan[i]]; |
| |
| chunk = prechunk & 0xff; |
| txb_hash_data[hash_data_index++] = chunk; |
| } |
| |
| // Extra ctx data: |
| // Include dequants. |
| txb_hash_data[hash_data_index++] = txb_info->dequant[0] & 0xff; |
| txb_hash_data[hash_data_index++] = txb_info->dequant[1] & 0xff; |
| chunk = txb_info->txb_ctx->txb_skip_ctx & 0xff; |
| txb_hash_data[hash_data_index++] = chunk; |
| chunk = txb_info->txb_ctx->dc_sign_ctx & 0xff; |
| txb_hash_data[hash_data_index++] = chunk; |
| // eob |
| chunk = txb_info->eob & 0xff; |
| txb_hash_data[hash_data_index++] = chunk; |
| // rdmult (int64) |
| chunk = txb_info->rdmult & 0xff; |
| txb_hash_data[hash_data_index++] = chunk; |
| // tx_type |
| chunk = txb_info->tx_type & 0xff; |
| txb_hash_data[hash_data_index++] = chunk; |
| // base_eob_cost |
| for (int i = 1; i < 3; i++) { // i = 0 are softened away |
| for (int j = 0; j < SIG_COEF_CONTEXTS_EOB; j++) { |
| chunk = (txb_costs->base_eob_cost[j][i] & 0xff00) >> 8; |
| txb_hash_data[hash_data_index++] = chunk; |
| } |
| } |
| // eob_cost |
| for (int i = 0; i < 11; i++) { |
| for (int j = 0; j < 2; j++) { |
| chunk = (txb_eob_costs->eob_cost[j][i] & 0xff00) >> 8; |
| txb_hash_data[hash_data_index++] = chunk; |
| } |
| } |
| // dc_sign_cost |
| for (int i = 0; i < 2; i++) { |
| for (int j = 0; j < DC_SIGN_CONTEXTS; j++) { |
| chunk = (txb_costs->dc_sign_cost[j][i] & 0xff00) >> 8; |
| txb_hash_data[hash_data_index++] = chunk; |
| } |
| } |
| |
| assert(hash_data_index <= 256); |
| // 31 bit ctx_hash: used to index table |
| uint32_t hbt_ctx_hash = |
| av1_get_crc32c_value(&crc_calculator, txb_hash_data, hash_data_index); |
| //// End hash creation |
| |
| return hbt_search_match(hbt_ctx_hash, hbt_qc_hash, txb_info, txb_costs, |
| txb_eob_costs, p, block, fast_mode, rate_cost); |
| } |
| #endif // CONFIG_HTB_TRELLIS |
| |
| static AOM_FORCE_INLINE int get_two_coeff_cost_simple( |
| int ci, tran_low_t abs_qc, int coeff_ctx, |
| const LV_MAP_COEFF_COST *txb_costs, int bwl, TX_CLASS tx_class, |
| const uint8_t *levels, int *cost_low) { |
| // this simple version assumes the coeff's scan_idx is not DC (scan_idx != 0) |
| // and not the last (scan_idx != eob - 1) |
| assert(ci > 0); |
| int cost = txb_costs->base_cost[coeff_ctx][AOMMIN(abs_qc, 3)]; |
| int diff = 0; |
| if (abs_qc <= 3) diff = txb_costs->base_cost[coeff_ctx][abs_qc + 4]; |
| if (abs_qc) { |
| cost += av1_cost_literal(1); |
| if (abs_qc > NUM_BASE_LEVELS) { |
| const int br_ctx = get_br_ctx(levels, ci, bwl, tx_class); |
| int brcost_diff = 0; |
| cost += get_br_cost_with_diff(abs_qc, txb_costs->lps_cost[br_ctx], |
| &brcost_diff); |
| diff += brcost_diff; |
| } |
| } |
| *cost_low = cost - diff; |
| |
| return cost; |
| } |
| |
| static INLINE int get_coeff_cost_eob(int ci, tran_low_t abs_qc, int sign, |
| int coeff_ctx, int dc_sign_ctx, |
| const LV_MAP_COEFF_COST *txb_costs, |
| int bwl, TX_CLASS tx_class) { |
| int cost = 0; |
| cost += txb_costs->base_eob_cost[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; |
| if (abs_qc != 0) { |
| if (ci == 0) { |
| cost += txb_costs->dc_sign_cost[dc_sign_ctx][sign]; |
| } else { |
| cost += av1_cost_literal(1); |
| } |
| if (abs_qc > NUM_BASE_LEVELS) { |
| int br_ctx; |
| br_ctx = get_br_ctx_eob(ci, bwl, tx_class); |
| cost += get_br_cost(abs_qc, txb_costs->lps_cost[br_ctx]); |
| } |
| } |
| return cost; |
| } |
| |
| static INLINE int get_coeff_cost_general(int is_last, int ci, tran_low_t abs_qc, |
| int sign, int coeff_ctx, |
| int dc_sign_ctx, |
| const LV_MAP_COEFF_COST *txb_costs, |
| int bwl, TX_CLASS tx_class, |
| const uint8_t *levels) { |
| int cost = 0; |
| if (is_last) { |
| cost += txb_costs->base_eob_cost[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; |
| } else { |
| cost += txb_costs->base_cost[coeff_ctx][AOMMIN(abs_qc, 3)]; |
| } |
| if (abs_qc != 0) { |
| if (ci == 0) { |
| cost += txb_costs->dc_sign_cost[dc_sign_ctx][sign]; |
| } else { |
| cost += av1_cost_literal(1); |
| } |
| if (abs_qc > NUM_BASE_LEVELS) { |
| int br_ctx; |
| if (is_last) |
| br_ctx = get_br_ctx_eob(ci, bwl, tx_class); |
| else |
| br_ctx = get_br_ctx(levels, ci, bwl, tx_class); |
| cost += get_br_cost(abs_qc, txb_costs->lps_cost[br_ctx]); |
| } |
| } |
| return cost; |
| } |
| |
| static INLINE void get_qc_dqc_low(tran_low_t abs_qc, int sign, int dqv, |
| int shift, tran_low_t *qc_low, |
| tran_low_t *dqc_low) { |
| tran_low_t abs_qc_low = abs_qc - 1; |
| *qc_low = (-sign ^ abs_qc_low) + sign; |
| assert((sign ? -abs_qc_low : abs_qc_low) == *qc_low); |
| tran_low_t abs_dqc_low = (abs_qc_low * dqv) >> shift; |
| *dqc_low = (-sign ^ abs_dqc_low) + sign; |
| assert((sign ? -abs_dqc_low : abs_dqc_low) == *dqc_low); |
| } |
| |
| 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 INLINE void update_coeff_eob_fast(int *eob, int shift, |
| const int16_t *dequant_ptr, |
| const int16_t *scan, |
| const tran_low_t *coeff_ptr, |
| tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr) { |
| // TODO(sarahparker) make this work for aomqm |
| int eob_out = *eob; |
| int zbin[2] = { dequant_ptr[0] + ROUND_POWER_OF_TWO(dequant_ptr[0] * 70, 7), |
| dequant_ptr[1] + ROUND_POWER_OF_TWO(dequant_ptr[1] * 70, 7) }; |
| |
| for (int i = *eob - 1; i >= 0; i--) { |
| const int rc = scan[i]; |
| const int qcoeff = qcoeff_ptr[rc]; |
| const int coeff = coeff_ptr[rc]; |
| const int coeff_sign = (coeff >> 31); |
| int64_t abs_coeff = (coeff ^ coeff_sign) - coeff_sign; |
| |
| if (((abs_coeff << (1 + shift)) < zbin[rc != 0]) || (qcoeff == 0)) { |
| eob_out--; |
| qcoeff_ptr[rc] = 0; |
| dqcoeff_ptr[rc] = 0; |
| } else { |
| break; |
| } |
| } |
| |
| *eob = eob_out; |
| } |
| |
| 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; |
| } |
| } |
| |
| int av1_optimize_txb_new(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, int fast_mode) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| struct macroblockd_plane *pd = &xd->plane[plane]; |
| 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 TX_SIZE qm_tx_size = av1_get_adjusted_tx_size(tx_size); |
| const qm_val_t *iqmatrix = |
| IS_2D_TRANSFORM(tx_type) |
| ? pd->seg_iqmatrix[xd->mi[0]->segment_id][qm_tx_size] |
| : cpi->common.giqmatrix[NUM_QM_LEVELS - 1][0][qm_tx_size]; |
| tran_low_t *qcoeff = BLOCK_OFFSET(p->qcoeff, block); |
| tran_low_t *dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); |
| const tran_low_t *tcoeff = BLOCK_OFFSET(p->coeff, block); |
| |
| // This function is not called if eob = 0. |
| assert(eob > 0); |
| |
| if (fast_mode) { |
| update_coeff_eob_fast(&eob, shift, dequant, scan, tcoeff, qcoeff, dqcoeff); |
| p->eobs[block] = eob; |
| if (eob == 0) { |
| *rate_cost = av1_cost_skip_txb(x, txb_ctx, plane, tx_size); |
| return eob; |
| } |
| } |
| |
| 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 = &x->coeff_costs[txs_ctx][plane_type]; |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const LV_MAP_EOB_COST *txb_eob_costs = |
| &x->eob_costs[eob_multi_size][plane_type]; |
| |
| const int rshift = |
| (sharpness + |
| (cpi->oxcf.aq_mode == VARIANCE_AQ && mbmi->segment_id < 4 |
| ? 7 - mbmi->segment_id |
| : 2) + |
| (cpi->oxcf.aq_mode != VARIANCE_AQ && |
| cpi->oxcf.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 && !fast_mode; --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(cm, x, xd, plane, tx_size, tx_type); |
| 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; |
| } |
| |
| // This function is deprecated, but we keep it here because hash trellis |
| // is not integrated with av1_optimize_txb_new yet |
| int av1_optimize_txb(const struct AV1_COMP *cpi, MACROBLOCK *x, int plane, |
| int blk_row, int blk_col, int block, TX_SIZE tx_size, |
| TXB_CTX *txb_ctx, int fast_mode, int *rate_cost) { |
| const AV1_COMMON *cm = &cpi->common; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| const PLANE_TYPE plane_type = get_plane_type(plane); |
| const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); |
| const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col, |
| tx_size, cm->reduced_tx_set_used); |
| const MB_MODE_INFO *mbmi = xd->mi[0]; |
| const struct macroblock_plane *p = &x->plane[plane]; |
| struct macroblockd_plane *pd = &xd->plane[plane]; |
| const int eob = p->eobs[block]; |
| tran_low_t *qcoeff = BLOCK_OFFSET(p->qcoeff, block); |
| tran_low_t *dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); |
| const tran_low_t *tcoeff = BLOCK_OFFSET(p->coeff, block); |
| const int16_t *dequant = p->dequant_QTX; |
| const int seg_eob = av1_get_max_eob(tx_size); |
| 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 int is_inter = is_inter_block(mbmi); |
| const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); |
| const LV_MAP_COEFF_COST *txb_costs = &x->coeff_costs[txs_ctx][plane_type]; |
| const int eob_multi_size = txsize_log2_minus4[tx_size]; |
| const LV_MAP_EOB_COST txb_eob_costs = |
| x->eob_costs[eob_multi_size][plane_type]; |
| |
| const int shift = av1_get_tx_scale(tx_size); |
| const int64_t rdmult = |
| (((int64_t)x->rdmult * plane_rd_mult[is_inter][plane_type] |
| << (2 * (xd->bd - 8))) + |
| 2) >> |
| 2; |
| uint8_t levels_buf[TX_PAD_2D]; |
| uint8_t *const levels = set_levels(levels_buf, width); |
| const TX_SIZE qm_tx_size = av1_get_adjusted_tx_size(tx_size); |
| const qm_val_t *iqmatrix = |
| IS_2D_TRANSFORM(tx_type) |
| ? pd->seg_iqmatrix[mbmi->segment_id][qm_tx_size] |
| : cm->giqmatrix[NUM_QM_LEVELS - 1][0][qm_tx_size]; |
| assert(width == (1 << bwl)); |
| const int tx_type_cost = get_tx_type_cost(cm, x, xd, plane, tx_size, tx_type); |
| TxbInfo txb_info = { |
| qcoeff, levels, dqcoeff, tcoeff, dequant, shift, tx_size, |
| txs_ctx, tx_type, bwl, width, height, eob, seg_eob, |
| scan_order, txb_ctx, rdmult, iqmatrix, tx_type_cost, |
| }; |
| |
| #if CONFIG_HTB_TRELLIS |
| // Hash based trellis (hbt) speed feature: avoid expensive optimize_txb calls |
| // by storing the coefficient deltas in a hash table. |
| // Currently disabled in speedfeatures.c |
| if (eob <= HBT_EOB && eob > 0 && cpi->sf.use_hash_based_trellis) { |
| return hbt_create_hashes(&txb_info, txb_costs, &txb_eob_costs, p, block, |
| fast_mode, rate_cost); |
| } |
| #else |
| (void)fast_mode; |
| #endif // CONFIG_HTB_TRELLIS |
| av1_txb_init_levels(qcoeff, width, height, levels); |
| |
| const int update = |
| optimize_txb(&txb_info, txb_costs, &txb_eob_costs, rate_cost); |
| |
| if (update) { |
| p->eobs[block] = txb_info.eob; |
| p->txb_entropy_ctx[block] = |
| av1_get_txb_entropy_context(qcoeff, scan_order, txb_info.eob); |
| } |
| return txb_info.eob; |
| } |
| |
| int av1_get_txb_entropy_context(const tran_low_t *qcoeff, |
| const SCAN_ORDER *scan_order, int eob) { |
| const int16_t *const scan = scan_order->scan; |
| int cul_level = 0; |
| int c; |
| |
| if (eob == 0) return 0; |
| for (c = 0; c < eob; ++c) { |
| cul_level += abs(qcoeff[scan[c]]); |
| if (cul_level > COEFF_CONTEXT_MASK) break; |
| } |
| |
| cul_level = AOMMIN(COEFF_CONTEXT_MASK, cul_level); |
| set_dc_sign(&cul_level, qcoeff[0]); |
| |
| return cul_level; |
| } |
| |
| void av1_update_txb_context_b(int plane, int block, int blk_row, int blk_col, |
| BLOCK_SIZE plane_bsize, TX_SIZE tx_size, |
| void *arg) { |
| struct tokenize_b_args *const args = arg; |
| const AV1_COMP *cpi = args->cpi; |
| const AV1_COMMON *cm = &cpi->common; |
| ThreadData *const td = args->td; |
| MACROBLOCK *const x = &td->mb; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| struct macroblock_plane *p = &x->plane[plane]; |
| struct macroblockd_plane *pd = &xd->plane[plane]; |
| const uint16_t eob = p->eobs[block]; |
| const tran_low_t *qcoeff = BLOCK_OFFSET(p->qcoeff, block); |
| const PLANE_TYPE plane_type = pd->plane_type; |
| const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col, |
| tx_size, cm->reduced_tx_set_used); |
| const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); |
| const int cul_level = av1_get_txb_entropy_context(qcoeff, scan_order, eob); |
| av1_set_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, blk_col, |
| blk_row); |
| } |
| |
| static void update_tx_type_count(const AV1_COMP *cpi, const AV1_COMMON *cm, |
| MACROBLOCKD *xd, int blk_row, int blk_col, |
| int plane, TX_SIZE tx_size, |
| FRAME_COUNTS *counts, |
| uint8_t allow_update_cdf) { |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| int is_inter = is_inter_block(mbmi); |
| FRAME_CONTEXT *fc = xd->tile_ctx; |
| #if !CONFIG_ENTROPY_STATS |
| (void)counts; |
| #endif // !CONFIG_ENTROPY_STATS |
| |
| // Only y plane's tx_type is updated |
| if (plane > 0) return; |
| const TX_TYPE tx_type = av1_get_tx_type(PLANE_TYPE_Y, xd, blk_row, blk_col, |
| tx_size, cm->reduced_tx_set_used); |
| if (is_inter) { |
| if (cpi->oxcf.use_inter_dct_only) { |
| assert(tx_type == DCT_DCT); |
| } |
| } else { |
| if (cpi->oxcf.use_intra_dct_only) { |
| assert(tx_type == DCT_DCT); |
| } else if (cpi->oxcf.use_intra_default_tx_only) { |
| const TX_TYPE default_type = get_default_tx_type( |
| PLANE_TYPE_Y, xd, tx_size, cpi->is_screen_content_type); |
| (void)default_type; |
| assert(tx_type == default_type); |
| } |
| } |
| |
| if (get_ext_tx_types(tx_size, is_inter, cm->reduced_tx_set_used) > 1 && |
| cm->base_qindex > 0 && !mbmi->skip && |
| !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { |
| const int eset = get_ext_tx_set(tx_size, is_inter, cm->reduced_tx_set_used); |
| if (eset > 0) { |
| const TxSetType tx_set_type = |
| av1_get_ext_tx_set_type(tx_size, is_inter, cm->reduced_tx_set_used); |
| if (is_inter) { |
| if (allow_update_cdf) { |
| update_cdf(fc->inter_ext_tx_cdf[eset][txsize_sqr_map[tx_size]], |
| av1_ext_tx_ind[tx_set_type][tx_type], |
| av1_num_ext_tx_set[tx_set_type]); |
| } |
| #if CONFIG_ENTROPY_STATS |
| ++counts->inter_ext_tx[eset][txsize_sqr_map[tx_size]] |
| [av1_ext_tx_ind[tx_set_type][tx_type]]; |
| #endif // CONFIG_ENTROPY_STATS |
| } else { |
| 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; |
| #if CONFIG_ENTROPY_STATS |
| ++counts->intra_ext_tx[eset][txsize_sqr_map[tx_size]][intra_dir] |
| [av1_ext_tx_ind[tx_set_type][tx_type]]; |
| #endif // CONFIG_ENTROPY_STATS |
| if (allow_update_cdf) { |
| update_cdf( |
| fc->intra_ext_tx_cdf[eset][txsize_sqr_map[tx_size]][intra_dir], |
| av1_ext_tx_ind[tx_set_type][tx_type], |
| av1_num_ext_tx_set[tx_set_type]); |
| } |
| } |
| } |
| } |
| } |
| |
| void av1_update_and_record_txb_context(int plane, int block, int blk_row, |
| int blk_col, BLOCK_SIZE plane_bsize, |
| TX_SIZE tx_size, void *arg) { |
| struct tokenize_b_args *const args = arg; |
| const AV1_COMP *cpi = args->cpi; |
| const AV1_COMMON *cm = &cpi->common; |
| ThreadData *const td = args->td; |
| MACROBLOCK *const x = &td->mb; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| struct macroblock_plane *p = &x->plane[plane]; |
| struct macroblockd_plane *pd = &xd->plane[plane]; |
| MB_MODE_INFO *mbmi = xd->mi[0]; |
| const int eob = p->eobs[block]; |
| TXB_CTX txb_ctx; |
| get_txb_ctx(plane_bsize, tx_size, plane, pd->above_context + blk_col, |
| pd->left_context + blk_row, &txb_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 uint8_t allow_update_cdf = args->allow_update_cdf; |
| const TX_SIZE txsize_ctx = get_txsize_entropy_ctx(tx_size); |
| FRAME_CONTEXT *ec_ctx = xd->tile_ctx; |
| #if CONFIG_ENTROPY_STATS |
| int cdf_idx = cm->coef_cdf_category; |
| #endif // CONFIG_ENTROPY_STATS |
| |
| #if CONFIG_ENTROPY_STATS |
| ++td->counts->txb_skip[cdf_idx][txsize_ctx][txb_ctx.txb_skip_ctx][eob == 0]; |
| #endif // CONFIG_ENTROPY_STATS |
| if (allow_update_cdf) { |
| update_cdf(ec_ctx->txb_skip_cdf[txsize_ctx][txb_ctx.txb_skip_ctx], eob == 0, |
| 2); |
| } |
| |
| CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; |
| const int txb_offset = |
| x->mbmi_ext_frame->cb_offset / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); |
| uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; |
| uint8_t *txb_skip_ctx_txb = cb_coef_buff->txb_skip_ctx[plane] + txb_offset; |
| txb_skip_ctx_txb[block] = txb_ctx.txb_skip_ctx; |
| eob_txb[block] = eob; |
| |
| if (eob == 0) { |
| av1_set_contexts(xd, pd, plane, plane_bsize, tx_size, 0, blk_col, blk_row); |
| return; |
| } |
| |
| tran_low_t *tcoeff_txb = |
| cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset; |
| tran_low_t *tcoeff = BLOCK_OFFSET(tcoeff_txb, block); |
| const int segment_id = mbmi->segment_id; |
| const int seg_eob = av1_get_tx_eob(&cpi->common.seg, segment_id, tx_size); |
| const tran_low_t *qcoeff = BLOCK_OFFSET(p->qcoeff, block); |
| memcpy(tcoeff, qcoeff, sizeof(*tcoeff) * seg_eob); |
| |
| uint8_t levels_buf[TX_PAD_2D]; |
| uint8_t *const levels = set_levels(levels_buf, width); |
| av1_txb_init_levels(tcoeff, width, height, levels); |
| update_tx_type_count(cpi, cm, xd, blk_row, blk_col, plane, tx_size, |
| td->counts, allow_update_cdf); |
| |
| const PLANE_TYPE plane_type = pd->plane_type; |
| const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col, |
| tx_size, cm->reduced_tx_set_used); |
| const TX_CLASS tx_class = tx_type_to_class[tx_type]; |
| const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); |
| const int16_t *const scan = scan_order->scan; |
| #if CONFIG_ENTROPY_STATS |
| av1_update_eob_context(cdf_idx, eob, tx_size, tx_class, plane_type, ec_ctx, |
| td->counts, allow_update_cdf); |
| #else |
| av1_update_eob_context(eob, tx_size, tx_class, plane_type, ec_ctx, |
| allow_update_cdf); |
| #endif |
| |
| DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); |
| av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, coeff_contexts); |
| |
| for (int c = eob - 1; c >= 0; --c) { |
| const int pos = scan[c]; |
| const int coeff_ctx = coeff_contexts[pos]; |
| const tran_low_t v = qcoeff[pos]; |
| const tran_low_t level = abs(v); |
| |
| if (allow_update_cdf) { |
| if (c == eob - 1) { |
| assert(coeff_ctx < 4); |
| update_cdf( |
| ec_ctx->coeff_base_eob_cdf[txsize_ctx][plane_type][coeff_ctx], |
| AOMMIN(level, 3) - 1, 3); |
| } else { |
| update_cdf(ec_ctx->coeff_base_cdf[txsize_ctx][plane_type][coeff_ctx], |
| AOMMIN(level, 3), 4); |
| } |
| } |
| { |
| if (c == eob - 1) { |
| assert(coeff_ctx < 4); |
| #if CONFIG_ENTROPY_STATS |
| ++td->counts->coeff_base_eob_multi[cdf_idx][txsize_ctx][plane_type] |
| [coeff_ctx][AOMMIN(level, 3) - 1]; |
| } else { |
| ++td->counts->coeff_base_multi[cdf_idx][txsize_ctx][plane_type] |
| [coeff_ctx][AOMMIN(level, 3)]; |
| #endif |
| } |
| } |
| if (level > NUM_BASE_LEVELS) { |
| const int base_range = level - 1 - NUM_BASE_LEVELS; |
| const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class); |
| for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { |
| const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); |
| if (allow_update_cdf) { |
| update_cdf(ec_ctx->coeff_br_cdf[AOMMIN(txsize_ctx, TX_32X32)] |
| [plane_type][br_ctx], |
| k, BR_CDF_SIZE); |
| } |
| for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { |
| #if CONFIG_ENTROPY_STATS |
| ++td->counts->coeff_lps[AOMMIN(txsize_ctx, TX_32X32)][plane_type][lps] |
| [br_ctx][lps == k]; |
| #endif // CONFIG_ENTROPY_STATS |
| if (lps == k) break; |
| } |
| #if CONFIG_ENTROPY_STATS |
| ++td->counts->coeff_lps_multi[cdf_idx][AOMMIN(txsize_ctx, TX_32X32)] |
| [plane_type][br_ctx][k]; |
| #endif |
| if (k < BR_CDF_SIZE - 1) break; |
| } |
| } |
| } |
| |
| // Update the context needed to code the DC sign (if applicable) |
| if (tcoeff[0] != 0) { |
| const int dc_sign = (tcoeff[0] < 0) ? 1 : 0; |
| const int dc_sign_ctx = txb_ctx.dc_sign_ctx; |
| #if CONFIG_ENTROPY_STATS |
| ++td->counts->dc_sign[plane_type][dc_sign_ctx][dc_sign]; |
| #endif // CONFIG_ENTROPY_STATS |
| if (allow_update_cdf) |
| update_cdf(ec_ctx->dc_sign_cdf[plane_type][dc_sign_ctx], dc_sign, 2); |
| int *dc_sign_ctx_txb = cb_coef_buff->dc_sign_ctx[plane] + txb_offset; |
| dc_sign_ctx_txb[block] = dc_sign_ctx; |
| } |
| |
| const int cul_level = av1_get_txb_entropy_context(tcoeff, scan_order, eob); |
| av1_set_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, blk_col, |
| blk_row); |
| } |
| |
| void av1_update_txb_context(const AV1_COMP *cpi, ThreadData *td, |
| RUN_TYPE dry_run, BLOCK_SIZE bsize, int *rate, |
| int mi_row, int mi_col, uint8_t allow_update_cdf) { |
| const AV1_COMMON *const cm = &cpi->common; |
| const int num_planes = av1_num_planes(cm); |
| MACROBLOCK *const x = &td->mb; |
| MACROBLOCKD *const xd = &x->e_mbd; |
| MB_MODE_INFO *const mbmi = xd->mi[0]; |
| struct tokenize_b_args arg = { cpi, td, 0, allow_update_cdf }; |
| (void)rate; |
| (void)mi_row; |
| (void)mi_col; |
| if (mbmi->skip) { |
| av1_reset_skip_context(xd, mi_row, mi_col, bsize, num_planes); |
| return; |
| } |
| |
| if (!dry_run) { |
| av1_foreach_transformed_block(xd, bsize, mi_row, mi_col, |
| av1_update_and_record_txb_context, &arg, |
| num_planes); |
| } else if (dry_run == DRY_RUN_NORMAL) { |
| av1_foreach_transformed_block(xd, bsize, mi_row, mi_col, |
| av1_update_txb_context_b, &arg, num_planes); |
| } else { |
| printf("DRY_RUN_COSTCOEFFS is not supported yet\n"); |
| assert(0); |
| } |
| } |
| |
| CB_COEFF_BUFFER *av1_get_cb_coeff_buffer(const struct AV1_COMP *cpi, int mi_row, |
| int mi_col) { |
| const AV1_COMMON *const cm = &cpi->common; |
| const int mib_size_log2 = cm->seq_params.mib_size_log2; |
| const int stride = (cm->mi_cols >> mib_size_log2) + 1; |
| const int offset = |
| (mi_row >> mib_size_log2) * stride + (mi_col >> mib_size_log2); |
| return cpi->coeff_buffer_base + offset; |
| } |
