diff options
Diffstat (limited to 'third_party/aom/av1/encoder/encodetxb.c')
| -rw-r--r-- | third_party/aom/av1/encoder/encodetxb.c | 2062 |
1 files changed, 0 insertions, 2062 deletions
diff --git a/third_party/aom/av1/encoder/encodetxb.c b/third_party/aom/av1/encoder/encodetxb.c deleted file mode 100644 index 5a31d93d7..000000000 --- a/third_party/aom/av1/encoder/encodetxb.c +++ /dev/null @@ -1,2062 +0,0 @@ -/* - * 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" - -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; - -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; - -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); } - -void av1_set_coeff_buffer(const AV1_COMP *const cpi, MACROBLOCK *const x, - int mi_row, int mi_col) { - const AV1_COMMON *const cm = &cpi->common; - const int num_planes = av1_num_planes(cm); - int mib_size_log2 = cm->seq_params.mib_size_log2; - int stride = (cm->mi_cols >> mib_size_log2) + 1; - int offset = (mi_row >> mib_size_log2) * stride + (mi_col >> mib_size_log2); - CB_COEFF_BUFFER *coeff_buf = &cpi->coeff_buffer_base[offset]; - const int txb_offset = x->cb_offset / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); - assert(x->cb_offset < (1 << num_pels_log2_lookup[cm->seq_params.sb_size])); - for (int plane = 0; plane < num_planes; ++plane) { - x->mbmi_ext->tcoeff[plane] = coeff_buf->tcoeff[plane] + x->cb_offset; - x->mbmi_ext->eobs[plane] = coeff_buf->eobs[plane] + txb_offset; - x->mbmi_ext->txb_skip_ctx[plane] = - coeff_buf->txb_skip_ctx[plane] + txb_offset; - x->mbmi_ext->dc_sign_ctx[plane] = - coeff_buf->dc_sign_ctx[plane] + txb_offset; - } -} - -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 - k_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 (k_eob_offset_bits[eob_pt] > 0) { - int eob_ctx = eob_pt - 3; - int eob_shift = k_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 (k_eob_offset_bits[eob_pt] > 0) { - const int eob_ctx = eob_pt - 3; - const int eob_shift = k_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 = k_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 INLINE int get_br_cost(tran_low_t abs_qc, int ctx, - const int *coeff_lps) { - const tran_low_t min_level = 1 + NUM_BASE_LEVELS; - const tran_low_t max_level = 1 + NUM_BASE_LEVELS + COEFF_BASE_RANGE; - (void)ctx; - if (abs_qc >= min_level) { - if (abs_qc >= max_level) { - return coeff_lps[COEFF_BASE_RANGE]; // COEFF_BASE_RANGE * cost0; - } else { - return coeff_lps[(abs_qc - min_level)]; // * cost0 + cost1; - } - } - return 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 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, ctx, txb_costs->lps_cost[ctx]); - cost += get_golomb_cost(abs_qc); - } - } - 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 - TX_PAD_TOP * stride, 0, - sizeof(*levels) * TX_PAD_TOP * stride); - 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; - } - - if (k_eob_offset_bits[eob_pt] > 0) { - const int eob_ctx = eob_pt - 3; - int eob_shift = k_eob_offset_bits[eob_pt] - 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 < k_eob_offset_bits[eob_pt]; i++) { - eob_shift = k_eob_offset_bits[eob_pt] - 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); - 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, - ec_ctx->coeff_br_cdf[AOMMIN(txs_ctx, TX_32X32)][plane_type][br_ctx], - 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; - tran_low_t *tcoeff = BLOCK_OFFSET(x->mbmi_ext->tcoeff[plane], block); - uint16_t eob = x->mbmi_ext->eobs[plane][block]; - TXB_CTX txb_ctx = { x->mbmi_ext->txb_skip_ctx[plane][block], - x->mbmi_ext->dc_sign_ctx[plane][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_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(levels, pos, bwl, tx_class); - const int base_range = - AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); - cost += lps_cost[ctx][base_range]; - cost += get_golomb_cost(level); - } - 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)[4] = 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); - const int base_range = - AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); - cost += lps_cost[ctx][base_range]; - cost += get_golomb_cost(level); - } - } - 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); - const int base_range = - AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); - cost += lps_cost[ctx][base_range]; - cost += get_golomb_cost(level); - } - } - } - 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; -} - -// These numbers are empirically obtained. -static const int plane_rd_mult[REF_TYPES][PLANE_TYPES] = { - { 17, 13 }, - { 16, 10 }, -}; - -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); } - -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; -} - -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; -} - -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); - } -} - -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); -} - -static AOM_FORCE_INLINE int get_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) { - // 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)]; - 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); - cost += get_br_cost(abs_qc, br_ctx, txb_costs->lps_cost[br_ctx]); - cost += get_golomb_cost(abs_qc); - } - } - 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) { - const int br_ctx = get_br_ctx(levels, ci, bwl, tx_class); - cost += get_br_cost(abs_qc, br_ctx, txb_costs->lps_cost[br_ctx]); - cost += get_golomb_cost(abs_qc); - } - } - 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 int dqv = dequant[si != 0]; - 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; - get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); - const tran_low_t abs_qc_low = abs_qc - 1; - const int64_t dist_low = get_coeff_dist(tqc, dqc_low, shift); - const int rate_low = - get_coeff_cost_general(is_last, ci, abs_qc_low, sign, coeff_ctx, - dc_sign_ctx, txb_costs, bwl, tx_class, levels); - const int64_t 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 int dqv = dequant[1]; - (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 tqc = tcoeff[ci]; - const tran_low_t dqc = dqcoeff[ci]; - const int rate = get_coeff_cost_simple(ci, abs_qc, coeff_ctx, txb_costs, - bwl, tx_class, levels); - if (abs(dqc) < abs(tqc)) { - *accu_rate += rate; - return; - } - const int64_t dist = get_coeff_dist(tqc, dqc, shift); - const int64_t rd = RDCOST(rdmult, rate, dist); - - const int sign = (qc < 0) ? 1 : 0; - tran_low_t qc_low, dqc_low; - get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); - const tran_low_t abs_qc_low = abs_qc - 1; - const int64_t dist_low = get_coeff_dist(tqc, dqc_low, shift); - const int rate_low = get_coeff_cost_simple( - ci, abs_qc_low, coeff_ctx, txb_costs, bwl, tx_class, levels); - const int64_t 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; - } 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 int dqv = dequant[si != 0]; - 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; - get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); - const tran_low_t abs_qc_low = abs_qc - 1; - const int64_t dist_low = get_coeff_dist(tqc, dqc_low, shift) - dist0; - const int rate_low = - get_coeff_cost_general(0, ci, abs_qc_low, sign, coeff_ctx, dc_sign_ctx, - txb_costs, bwl, tx_class, levels); - const int64_t rd_low = - RDCOST(rdmult, *accu_rate + rate_low, *accu_dist + dist_low); - - int lower_level_new_eob = 0; - const int new_eob = si + 1; - uint8_t tmp_levels[3]; - for (int ni = 0; ni < *nz_num; ++ni) { - const int last_ci = nz_ci[ni]; - tmp_levels[ni] = levels[get_padded_idx(last_ci, bwl)]; - levels[get_padded_idx(last_ci, bwl)] = 0; - } - - const int coeff_ctx_new_eob = get_lower_levels_ctx_general( - 1, si, bwl, height, levels, ci, tx_size, tx_class); - 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_general(1, ci, abs_qc, sign, - coeff_ctx_new_eob, dc_sign_ctx, - txb_costs, bwl, tx_class, levels); - 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_general(1, ci, abs_qc_low, sign, coeff_ctx_new_eob, - dc_sign_ctx, txb_costs, bwl, tx_class, levels); - 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 { - for (int ni = 0; ni < *nz_num; ++ni) { - const int last_ci = nz_ci[ni]; - levels[get_padded_idx(last_ci, bwl)] = tmp_levels[ni]; - } - *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) { - const AV1_COMMON *cm = &cpi->common; - MACROBLOCKD *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_CLASS tx_class = tx_type_to_class[tx_type]; - const MB_MODE_INFO *mbmi = xd->mi[0]; - const struct macroblock_plane *p = &x->plane[plane]; - struct macroblockd_plane *pd = &xd->plane[plane]; - 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 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 SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); - const int16_t *scan = scan_order->scan; - 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 = - ((x->rdmult * plane_rd_mult[is_inter][plane_type] << (2 * (xd->bd - 8))) + - 2) >> - (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 > NO_DELTA_Q && x->sb_energy_level < 0 - ? (3 - x->sb_energy_level) - : 0)); - - uint8_t levels_buf[TX_PAD_2D]; - uint8_t *const levels = set_levels(levels_buf, width); - - 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]; - int eob = p->eobs[block]; - 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); - --si; - } else { - assert(abs_qc == 1); - const int coeff_ctx = get_lower_levels_ctx_general( - 1, si, bwl, height, levels, ci, tx_size, tx_class); - accu_rate += get_coeff_cost_general(1, ci, abs_qc, sign, coeff_ctx, - txb_ctx->dc_sign_ctx, txb_costs, bwl, - tx_class, levels); - 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); \ - } \ - 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); \ - } \ - 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); - } - - 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 = - ((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, &cm->coeff_ctx_table, - iqmatrix, tx_type_cost, - }; - - // 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); - } - - 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_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; - TX_TYPE tx_type = av1_get_tx_type(PLANE_TYPE_Y, xd, blk_row, blk_col, tx_size, - cm->reduced_tx_set_used); - 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); - } - - x->mbmi_ext->txb_skip_ctx[plane][block] = txb_ctx.txb_skip_ctx; - x->mbmi_ext->eobs[plane][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 = BLOCK_OFFSET(x->mbmi_ext->tcoeff[plane], 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(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); - x->mbmi_ext->dc_sign_ctx[plane][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, NULL, 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); - } -} |