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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/encoder/encodetxb.c | 886 |
1 files changed, 886 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/encodetxb.c b/third_party/aom/av1/encoder/encodetxb.c new file mode 100644 index 0000000000..5fe2a497c7 --- /dev/null +++ b/third_party/aom/av1/encoder/encodetxb.c @@ -0,0 +1,886 @@ +/* + * 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" + +void av1_alloc_txb_buf(AV1_COMP *cpi) { + AV1_COMMON *cm = &cpi->common; + CoeffBufferPool *coeff_buf_pool = &cpi->coeff_buffer_pool; + const int num_sb_rows = + CEIL_POWER_OF_TWO(cm->mi_params.mi_rows, cm->seq_params->mib_size_log2); + const int num_sb_cols = + CEIL_POWER_OF_TWO(cm->mi_params.mi_cols, cm->seq_params->mib_size_log2); + const int size = num_sb_rows * num_sb_cols; + const int num_planes = av1_num_planes(cm); + const int subsampling_x = cm->seq_params->subsampling_x; + const int subsampling_y = cm->seq_params->subsampling_y; + const int luma_max_sb_square = + 1 << num_pels_log2_lookup[cm->seq_params->sb_size]; + const int chroma_max_sb_square = + luma_max_sb_square >> (subsampling_x + subsampling_y); + const int num_tcoeffs = + size * (luma_max_sb_square + (num_planes - 1) * chroma_max_sb_square); + const int txb_unit_size = TX_SIZE_W_MIN * TX_SIZE_H_MIN; + + av1_free_txb_buf(cpi); + // TODO(jingning): This should be further reduced. + CHECK_MEM_ERROR(cm, cpi->coeff_buffer_base, + aom_malloc(sizeof(*cpi->coeff_buffer_base) * size)); + CHECK_MEM_ERROR( + cm, coeff_buf_pool->tcoeff, + aom_memalign(32, sizeof(*coeff_buf_pool->tcoeff) * num_tcoeffs)); + CHECK_MEM_ERROR( + cm, coeff_buf_pool->eobs, + aom_malloc(sizeof(*coeff_buf_pool->eobs) * num_tcoeffs / txb_unit_size)); + CHECK_MEM_ERROR(cm, coeff_buf_pool->entropy_ctx, + aom_malloc(sizeof(*coeff_buf_pool->entropy_ctx) * + num_tcoeffs / txb_unit_size)); + + tran_low_t *tcoeff_ptr = coeff_buf_pool->tcoeff; + uint16_t *eob_ptr = coeff_buf_pool->eobs; + uint8_t *entropy_ctx_ptr = coeff_buf_pool->entropy_ctx; + for (int i = 0; i < size; i++) { + for (int plane = 0; plane < num_planes; plane++) { + const int max_sb_square = + (plane == AOM_PLANE_Y) ? luma_max_sb_square : chroma_max_sb_square; + cpi->coeff_buffer_base[i].tcoeff[plane] = tcoeff_ptr; + cpi->coeff_buffer_base[i].eobs[plane] = eob_ptr; + cpi->coeff_buffer_base[i].entropy_ctx[plane] = entropy_ctx_ptr; + tcoeff_ptr += max_sb_square; + eob_ptr += max_sb_square / txb_unit_size; + entropy_ctx_ptr += max_sb_square / txb_unit_size; + } + } +} + +void av1_free_txb_buf(AV1_COMP *cpi) { + CoeffBufferPool *coeff_buf_pool = &cpi->coeff_buffer_pool; + aom_free(cpi->coeff_buffer_base); + cpi->coeff_buffer_base = NULL; + aom_free(coeff_buf_pool->tcoeff); + coeff_buf_pool->tcoeff = NULL; + aom_free(coeff_buf_pool->eobs); + coeff_buf_pool->eobs = NULL; + aom_free(coeff_buf_pool->entropy_ctx); + coeff_buf_pool->entropy_ctx = NULL; +} + +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 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- +}; + +int av1_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 = av1_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 INLINE int get_nz_map_ctx(const uint8_t *const levels, + const int coeff_idx, const int bhl, + const int width, 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 <= (width << bhl) / 8) return 1; + if (scan_idx <= (width << bhl) / 4) return 2; + return 3; + } + const int stats = + get_nz_mag(levels + get_padded_idx(coeff_idx, bhl), bhl, tx_class); + return get_nz_map_ctx_from_stats(stats, coeff_idx, bhl, tx_size, tx_class); +} + +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 = height + TX_PAD_HOR; + uint8_t *ls = levels; + + memset(levels + stride * width, 0, + sizeof(*levels) * (TX_PAD_BOTTOM * stride + TX_PAD_END)); + + for (int i = 0; i < width; i++) { + for (int j = 0; j < height; j++) { + *ls++ = (uint8_t)clamp(abs(coeff[i * height + 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 bhl = get_txb_bhl(tx_size); + const int width = get_txb_wide(tx_size); + for (int i = 0; i < eob; ++i) { + const int pos = scan[i]; + coeff_contexts[pos] = get_nz_map_ctx(levels, pos, bhl, width, i, + i == eob - 1, tx_size, tx_class); + } +} + +void av1_write_coeffs_txb(const AV1_COMMON *const cm, MACROBLOCK *const x, + aom_writer *w, int blk_row, int blk_col, int plane, + int block, TX_SIZE tx_size) { + MACROBLOCKD *xd = &x->e_mbd; + const CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; + const PLANE_TYPE plane_type = get_plane_type(plane); + const int txb_offset = x->mbmi_ext_frame->cb_offset[plane_type] / + (TX_SIZE_W_MIN * TX_SIZE_H_MIN); + const uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; + const uint16_t eob = eob_txb[block]; + const uint8_t *entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; + const int txb_skip_ctx = entropy_ctx[block] & TXB_SKIP_CTX_MASK; + 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_skip_ctx], 2); + if (eob == 0) return; + + const TX_TYPE tx_type = + av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, + cm->features.reduced_tx_set_used); + // Only y plane's tx_type is transmitted + if (plane == 0) { + av1_write_tx_type(cm, xd, tx_type, tx_size, w); + } + + int eob_extra; + const int eob_pt = av1_get_eob_pos_token(eob, &eob_extra); + const int eob_multi_size = txsize_log2_minus4[tx_size]; + const TX_CLASS tx_class = tx_type_to_class[tx_type]; + 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); + } + } + + 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, height); + const tran_low_t *tcoeff_txb = + cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane_type]; + const tran_low_t *tcoeff = tcoeff_txb + BLOCK_OFFSET(block); + av1_txb_init_levels(tcoeff, width, height, levels); + const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); + const int16_t *const scan = scan_order->scan; + DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); + av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, coeff_contexts); + + const int bhl = get_txb_bhl(tx_size); + 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 = 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, bhl, 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 (int 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) { + const int dc_sign_ctx = + (entropy_ctx[block] >> DC_SIGN_CTX_SHIFT) & DC_SIGN_CTX_MASK; + aom_write_symbol(w, sign, ec_ctx->dc_sign_cdf[plane_type][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); + } + } +} + +void av1_write_intra_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x, + 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 = mi_size_wide[max_unit_bsize]; + int mu_blocks_high = mi_size_high[max_unit_bsize]; + 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) { + if (plane && !xd->is_chroma_ref) break; + 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 struct macroblockd_plane *const pd = &xd->plane[plane]; + 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) { + av1_write_coeffs_txb(cm, x, w, blk_row, blk_col, plane, + block[plane], tx_size); + block[plane] += step; + } + } + } + } + } +} + +uint8_t 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 (uint8_t)cul_level; +} + +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); + const int reduced_tx_set_used = cm->features.reduced_tx_set_used; + 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(xd, PLANE_TYPE_Y, blk_row, blk_col, + tx_size, reduced_tx_set_used); + if (is_inter) { + if (cpi->oxcf.txfm_cfg.use_inter_dct_only) { + assert(tx_type == DCT_DCT); + } + } else { + if (cpi->oxcf.txfm_cfg.use_intra_dct_only) { + assert(tx_type == DCT_DCT); + } else if (cpi->oxcf.txfm_cfg.use_intra_default_tx_only) { + const TX_TYPE default_type = get_default_tx_type( + PLANE_TYPE_Y, xd, tx_size, cpi->use_screen_content_tools); + (void)default_type; + // TODO(kyslov): We don't always respect use_intra_default_tx_only flag in + // NonRD and REALTIME case. Specifically we ignore it in hybrid inta mode + // search, when picking up intra mode in nonRD inter mode search and in RD + // REALTIME mode when we limit TX type usage. + // We need to fix txfm cfg for these cases. Meanwhile relieving the + // assert. + assert(tx_type == default_type || cpi->sf.rt_sf.use_nonrd_pick_mode || + cpi->oxcf.mode == REALTIME); + } + } + + if (get_ext_tx_types(tx_size, is_inter, reduced_tx_set_used) > 1 && + cm->quant_params.base_qindex > 0 && !mbmi->skip_txfm && + !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { + const int eset = get_ext_tx_set(tx_size, is_inter, reduced_tx_set_used); + if (eset > 0) { + const TxSetType tx_set_type = + av1_get_ext_tx_set_type(tx_size, is_inter, 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]; + const int eob = p->eobs[block]; + const int block_offset = BLOCK_OFFSET(block); + tran_low_t *qcoeff = p->qcoeff + block_offset; + const PLANE_TYPE plane_type = pd->plane_type; + const TX_TYPE tx_type = + av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, + cm->features.reduced_tx_set_used); + const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); + tran_low_t *tcoeff; + assert(args->dry_run != DRY_RUN_COSTCOEFFS); + if (args->dry_run == OUTPUT_ENABLED) { + MB_MODE_INFO *mbmi = xd->mi[0]; + TXB_CTX txb_ctx; + get_txb_ctx(plane_bsize, tx_size, plane, + pd->above_entropy_context + blk_col, + pd->left_entropy_context + blk_row, &txb_ctx); + const int bhl = get_txb_bhl(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; + ++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[plane_type] / + (TX_SIZE_W_MIN * TX_SIZE_H_MIN); + uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; + uint8_t *const entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; + entropy_ctx[block] = txb_ctx.txb_skip_ctx; + eob_txb[block] = eob; + + if (eob == 0) { + av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, 0, blk_col, + blk_row); + return; + } + const int segment_id = mbmi->segment_id; + const int seg_eob = av1_get_tx_eob(&cpi->common.seg, segment_id, tx_size); + tran_low_t *tcoeff_txb = + cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane_type]; + tcoeff = tcoeff_txb + block_offset; + memcpy(tcoeff, qcoeff, sizeof(*tcoeff) * seg_eob); + + uint8_t levels_buf[TX_PAD_2D]; + uint8_t *const levels = set_levels(levels_buf, height); + 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 TX_CLASS tx_class = tx_type_to_class[tx_type]; + const int16_t *const scan = scan_order->scan; + + // record tx type usage + td->rd_counts.tx_type_used[tx_size][tx_type]++; + +#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); + /* abs_sum_level is needed to decide the job scheduling order of + * pack bitstream multi-threading. This data is not needed if + * multi-threading is disabled. */ + if (cpi->mt_info.pack_bs_mt_enabled) td->abs_sum_level += level; + + 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, bhl, 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); + entropy_ctx[block] |= dc_sign_ctx << DC_SIGN_CTX_SHIFT; + } + } else { + tcoeff = qcoeff; + } + const uint8_t cul_level = + av1_get_txb_entropy_context(tcoeff, scan_order, eob); + av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, + blk_col, blk_row); +} + +void av1_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]; + const int eob = p->eobs[block]; + const int block_offset = BLOCK_OFFSET(block); + tran_low_t *qcoeff = p->qcoeff + block_offset; + const PLANE_TYPE plane_type = pd->plane_type; + const TX_TYPE tx_type = + av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, + cm->features.reduced_tx_set_used); + const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); + tran_low_t *tcoeff; + assert(args->dry_run != DRY_RUN_COSTCOEFFS); + if (args->dry_run == OUTPUT_ENABLED) { + MB_MODE_INFO *mbmi = xd->mi[0]; + TXB_CTX txb_ctx; + get_txb_ctx(plane_bsize, tx_size, plane, + pd->above_entropy_context + blk_col, + pd->left_entropy_context + blk_row, &txb_ctx); +#if CONFIG_ENTROPY_STATS + const TX_SIZE txsize_ctx = get_txsize_entropy_ctx(tx_size); + const int bhl = get_txb_bhl(tx_size); + const int width = get_txb_wide(tx_size); + const int height = get_txb_high(tx_size); + int cdf_idx = cm->coef_cdf_category; + ++td->counts->txb_skip[cdf_idx][txsize_ctx][txb_ctx.txb_skip_ctx][eob == 0]; +#endif // CONFIG_ENTROPY_STATS + + CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; + const int txb_offset = x->mbmi_ext_frame->cb_offset[plane_type] / + (TX_SIZE_W_MIN * TX_SIZE_H_MIN); + uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; + uint8_t *const entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; + entropy_ctx[block] = txb_ctx.txb_skip_ctx; + eob_txb[block] = eob; + + if (eob == 0) { + av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, 0, blk_col, + blk_row); + return; + } + const int segment_id = mbmi->segment_id; + const int seg_eob = av1_get_tx_eob(&cpi->common.seg, segment_id, tx_size); + tran_low_t *tcoeff_txb = + cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane_type]; + tcoeff = tcoeff_txb + block_offset; + memcpy(tcoeff, qcoeff, sizeof(*tcoeff) * seg_eob); + +#if CONFIG_ENTROPY_STATS + uint8_t levels_buf[TX_PAD_2D]; + uint8_t *const levels = set_levels(levels_buf, height); + av1_txb_init_levels(tcoeff, width, height, levels); + update_tx_type_count(cpi, cm, xd, blk_row, blk_col, plane, tx_size, + td->counts, 0 /*allow_update_cdf*/); + + const TX_CLASS tx_class = tx_type_to_class[tx_type]; + const bool do_coeff_scan = true; +#else + const bool do_coeff_scan = cpi->mt_info.pack_bs_mt_enabled; +#endif + const int16_t *const scan = scan_order->scan; + + // record tx type usage + td->rd_counts.tx_type_used[tx_size][tx_type]++; + +#if CONFIG_ENTROPY_STATS + FRAME_CONTEXT *ec_ctx = xd->tile_ctx; + av1_update_eob_context(cdf_idx, eob, tx_size, tx_class, plane_type, ec_ctx, + td->counts, 0 /*allow_update_cdf*/); + + DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); + av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, + coeff_contexts); +#endif + + for (int c = eob - 1; (c >= 0) && do_coeff_scan; --c) { + const int pos = scan[c]; + const tran_low_t v = qcoeff[pos]; + const tran_low_t level = abs(v); + /* abs_sum_level is needed to decide the job scheduling order of + * pack bitstream multi-threading. This data is not needed if + * multi-threading is disabled. */ + if (cpi->mt_info.pack_bs_mt_enabled) td->abs_sum_level += level; + +#if CONFIG_ENTROPY_STATS + const int coeff_ctx = coeff_contexts[pos]; + if (c == eob - 1) { + assert(coeff_ctx < 4); + ++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)]; + } + if (level > NUM_BASE_LEVELS) { + const int base_range = level - 1 - NUM_BASE_LEVELS; + const int br_ctx = get_br_ctx(levels, pos, bhl, 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); + for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { + ++td->counts->coeff_lps[AOMMIN(txsize_ctx, TX_32X32)][plane_type] + [lps][br_ctx][lps == k]; + if (lps == k) break; + } + ++td->counts->coeff_lps_multi[cdf_idx][AOMMIN(txsize_ctx, TX_32X32)] + [plane_type][br_ctx][k]; + if (k < BR_CDF_SIZE - 1) break; + } + } +#endif + } + // Update the context needed to code the DC sign (if applicable) + if (tcoeff[0] != 0) { + const int dc_sign_ctx = txb_ctx.dc_sign_ctx; +#if CONFIG_ENTROPY_STATS + const int dc_sign = (tcoeff[0] < 0) ? 1 : 0; + ++td->counts->dc_sign[plane_type][dc_sign_ctx][dc_sign]; +#endif // CONFIG_ENTROPY_STATS + entropy_ctx[block] |= dc_sign_ctx << DC_SIGN_CTX_SHIFT; + } + } else { + tcoeff = qcoeff; + } + const uint8_t cul_level = + av1_get_txb_entropy_context(tcoeff, scan_order, eob); + av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, + blk_col, blk_row); +} + +void av1_update_intra_mb_txb_context(const AV1_COMP *cpi, ThreadData *td, + RUN_TYPE dry_run, BLOCK_SIZE bsize, + 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, dry_run }; + if (mbmi->skip_txfm) { + av1_reset_entropy_context(xd, bsize, num_planes); + return; + } + const foreach_transformed_block_visitor visit = + allow_update_cdf ? av1_update_and_record_txb_context + : av1_record_txb_context; + + for (int plane = 0; plane < num_planes; ++plane) { + if (plane && !xd->is_chroma_ref) break; + const struct macroblockd_plane *const pd = &xd->plane[plane]; + const int ss_x = pd->subsampling_x; + const int ss_y = pd->subsampling_y; + const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, ss_x, ss_y); + av1_foreach_transformed_block_in_plane(xd, plane_bsize, plane, visit, &arg); + } +} + +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 = + CEIL_POWER_OF_TWO(cm->mi_params.mi_cols, cm->seq_params->mib_size_log2); + const int offset = + (mi_row >> mib_size_log2) * stride + (mi_col >> mib_size_log2); + return cpi->coeff_buffer_base + offset; +} |