/* * Copyright (c) 2016, 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 #include #include #include "aom/aom_encoder.h" #include "aom_dsp/bitwriter_buffer.h" #include "aom_dsp/aom_dsp_common.h" #include "aom_dsp/binary_codes_writer.h" #include "aom_mem/aom_mem.h" #include "aom_ports/mem_ops.h" #include "aom_ports/system_state.h" #if CONFIG_BITSTREAM_DEBUG #include "aom_util/debug_util.h" #endif // CONFIG_BITSTREAM_DEBUG #if CONFIG_CDEF #include "av1/common/cdef.h" #include "av1/common/clpf.h" #endif // CONFIG_CDEF #include "av1/common/entropy.h" #include "av1/common/entropymode.h" #include "av1/common/entropymv.h" #include "av1/common/mvref_common.h" #include "av1/common/odintrin.h" #include "av1/common/pred_common.h" #include "av1/common/reconinter.h" #if CONFIG_EXT_INTRA #include "av1/common/reconintra.h" #endif // CONFIG_EXT_INTRA #include "av1/common/seg_common.h" #include "av1/common/tile_common.h" #if CONFIG_ANS #include "aom_dsp/buf_ans.h" #endif // CONFIG_ANS #if CONFIG_LV_MAP #include "av1/encoder/encodetxb.h" #endif // CONFIG_LV_MAP #include "av1/encoder/bitstream.h" #include "av1/encoder/cost.h" #include "av1/encoder/encodemv.h" #include "av1/encoder/mcomp.h" #if CONFIG_PALETTE && CONFIG_PALETTE_DELTA_ENCODING #include "av1/encoder/palette.h" #endif // CONFIG_PALETTE && CONFIG_PALETTE_DELTA_ENCODING #include "av1/encoder/segmentation.h" #include "av1/encoder/subexp.h" #include "av1/encoder/tokenize.h" #if CONFIG_PVQ #include "av1/encoder/pvq_encoder.h" #endif static struct av1_token intra_mode_encodings[INTRA_MODES]; static struct av1_token switchable_interp_encodings[SWITCHABLE_FILTERS]; static struct av1_token partition_encodings[PARTITION_TYPES]; #if CONFIG_EXT_INTER static const struct av1_token inter_compound_mode_encodings[INTER_COMPOUND_MODES] = { { 2, 2 }, { 12, 4 }, { 52, 6 }, { 53, 6 }, { 54, 6 }, { 55, 6 }, { 0, 1 }, { 7, 3 } }; #endif // CONFIG_EXT_INTER #if CONFIG_PALETTE static struct av1_token palette_size_encodings[PALETTE_SIZES]; static struct av1_token palette_color_index_encodings[PALETTE_SIZES] [PALETTE_COLORS]; #endif // CONFIG_PALETTE #if CONFIG_EXT_INTRA || CONFIG_FILTER_INTRA || CONFIG_PALETTE static INLINE void write_uniform(aom_writer *w, int n, int v) { const int l = get_unsigned_bits(n); const int m = (1 << l) - n; if (l == 0) return; if (v < m) { aom_write_literal(w, v, l - 1); } else { aom_write_literal(w, m + ((v - m) >> 1), l - 1); aom_write_literal(w, (v - m) & 1, 1); } } #endif // CONFIG_EXT_INTRA || CONFIG_FILTER_INTRA || CONFIG_PALETTE #if CONFIG_EXT_TX static struct av1_token ext_tx_inter_encodings[EXT_TX_SETS_INTER][TX_TYPES]; static struct av1_token ext_tx_intra_encodings[EXT_TX_SETS_INTRA][TX_TYPES]; #else static struct av1_token ext_tx_encodings[TX_TYPES]; #endif // CONFIG_EXT_TX #if CONFIG_GLOBAL_MOTION static struct av1_token global_motion_types_encodings[GLOBAL_TRANS_TYPES]; #endif // CONFIG_GLOBAL_MOTION #if CONFIG_EXT_INTRA #if CONFIG_INTRA_INTERP static struct av1_token intra_filter_encodings[INTRA_FILTERS]; #endif // CONFIG_INTRA_INTERP #endif // CONFIG_EXT_INTRA #if CONFIG_EXT_INTER #if CONFIG_INTERINTRA static struct av1_token interintra_mode_encodings[INTERINTRA_MODES]; #endif #if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE static struct av1_token compound_type_encodings[COMPOUND_TYPES]; #endif // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE #endif // CONFIG_EXT_INTER #if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION static struct av1_token motion_mode_encodings[MOTION_MODES]; #endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION #if CONFIG_LOOP_RESTORATION static struct av1_token switchable_restore_encodings[RESTORE_SWITCHABLE_TYPES]; #endif // CONFIG_LOOP_RESTORATION static void write_uncompressed_header(AV1_COMP *cpi, struct aom_write_bit_buffer *wb); static uint32_t write_compressed_header(AV1_COMP *cpi, uint8_t *data); static int remux_tiles(const AV1_COMMON *const cm, uint8_t *dst, const uint32_t data_size, const uint32_t max_tile_size, const uint32_t max_tile_col_size, int *const tile_size_bytes, int *const tile_col_size_bytes); void av1_encode_token_init(void) { #if CONFIG_EXT_TX || CONFIG_PALETTE int s; #endif // CONFIG_EXT_TX || CONFIG_PALETTE #if CONFIG_EXT_TX for (s = 1; s < EXT_TX_SETS_INTER; ++s) { av1_tokens_from_tree(ext_tx_inter_encodings[s], av1_ext_tx_inter_tree[s]); } for (s = 1; s < EXT_TX_SETS_INTRA; ++s) { av1_tokens_from_tree(ext_tx_intra_encodings[s], av1_ext_tx_intra_tree[s]); } #else av1_tokens_from_tree(ext_tx_encodings, av1_ext_tx_tree); #endif // CONFIG_EXT_TX av1_tokens_from_tree(intra_mode_encodings, av1_intra_mode_tree); av1_tokens_from_tree(switchable_interp_encodings, av1_switchable_interp_tree); av1_tokens_from_tree(partition_encodings, av1_partition_tree); #if CONFIG_PALETTE av1_tokens_from_tree(palette_size_encodings, av1_palette_size_tree); for (s = 0; s < PALETTE_SIZES; ++s) { av1_tokens_from_tree(palette_color_index_encodings[s], av1_palette_color_index_tree[s]); } #endif // CONFIG_PALETTE #if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP av1_tokens_from_tree(intra_filter_encodings, av1_intra_filter_tree); #endif // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP #if CONFIG_EXT_INTER #if CONFIG_INTERINTRA av1_tokens_from_tree(interintra_mode_encodings, av1_interintra_mode_tree); #endif // CONFIG_INTERINTRA #if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE av1_tokens_from_tree(compound_type_encodings, av1_compound_type_tree); #endif // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE #endif // CONFIG_EXT_INTER #if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION av1_tokens_from_tree(motion_mode_encodings, av1_motion_mode_tree); #endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION #if CONFIG_GLOBAL_MOTION av1_tokens_from_tree(global_motion_types_encodings, av1_global_motion_types_tree); #endif // CONFIG_GLOBAL_MOTION #if CONFIG_LOOP_RESTORATION av1_tokens_from_tree(switchable_restore_encodings, av1_switchable_restore_tree); #endif // CONFIG_LOOP_RESTORATION /* This hack is necessary when CONFIG_DUAL_FILTER is enabled because the five SWITCHABLE_FILTERS are not consecutive, e.g., 0, 1, 2, 3, 4, when doing an in-order traversal of the av1_switchable_interp_tree structure. */ av1_indices_from_tree(av1_switchable_interp_ind, av1_switchable_interp_inv, av1_switchable_interp_tree); /* This hack is necessary because the four TX_TYPES are not consecutive, e.g., 0, 1, 2, 3, when doing an in-order traversal of the av1_ext_tx_tree structure. */ #if CONFIG_EXT_TX for (s = 1; s < EXT_TX_SETS_INTRA; ++s) av1_indices_from_tree(av1_ext_tx_intra_ind[s], av1_ext_tx_intra_inv[s], av1_ext_tx_intra_tree[s]); for (s = 1; s < EXT_TX_SETS_INTER; ++s) av1_indices_from_tree(av1_ext_tx_inter_ind[s], av1_ext_tx_inter_inv[s], av1_ext_tx_inter_tree[s]); #else av1_indices_from_tree(av1_ext_tx_ind, av1_ext_tx_inv, av1_ext_tx_tree); #endif av1_indices_from_tree(av1_intra_mode_ind, av1_intra_mode_inv, av1_intra_mode_tree); av1_indices_from_tree(av1_inter_mode_ind, av1_inter_mode_inv, av1_inter_mode_tree); } static void write_intra_mode_kf(const AV1_COMMON *cm, FRAME_CONTEXT *frame_ctx, const MODE_INFO *mi, const MODE_INFO *above_mi, const MODE_INFO *left_mi, int block, PREDICTION_MODE mode, aom_writer *w) { #if CONFIG_INTRABC assert(!is_intrabc_block(&mi->mbmi)); #endif // CONFIG_INTRABC aom_write_symbol(w, av1_intra_mode_ind[mode], get_y_mode_cdf(frame_ctx, mi, above_mi, left_mi, block), INTRA_MODES); (void)cm; } #if CONFIG_EXT_INTER && CONFIG_INTERINTRA static void write_interintra_mode(aom_writer *w, INTERINTRA_MODE mode, const aom_prob *probs) { av1_write_token(w, av1_interintra_mode_tree, probs, &interintra_mode_encodings[mode]); } #endif // CONFIG_EXT_INTER && CONFIG_INTERINTRA static void write_inter_mode(aom_writer *w, PREDICTION_MODE mode, FRAME_CONTEXT *ec_ctx, const int16_t mode_ctx) { const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK; const aom_prob newmv_prob = ec_ctx->newmv_prob[newmv_ctx]; aom_write(w, mode != NEWMV, newmv_prob); if (mode != NEWMV) { const int16_t zeromv_ctx = (mode_ctx >> ZEROMV_OFFSET) & ZEROMV_CTX_MASK; const aom_prob zeromv_prob = ec_ctx->zeromv_prob[zeromv_ctx]; if (mode_ctx & (1 << ALL_ZERO_FLAG_OFFSET)) { assert(mode == ZEROMV); return; } aom_write(w, mode != ZEROMV, zeromv_prob); if (mode != ZEROMV) { int16_t refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK; aom_prob refmv_prob; if (mode_ctx & (1 << SKIP_NEARESTMV_OFFSET)) refmv_ctx = 6; if (mode_ctx & (1 << SKIP_NEARMV_OFFSET)) refmv_ctx = 7; if (mode_ctx & (1 << SKIP_NEARESTMV_SUB8X8_OFFSET)) refmv_ctx = 8; refmv_prob = ec_ctx->refmv_prob[refmv_ctx]; aom_write(w, mode != NEARESTMV, refmv_prob); } } } static void write_drl_idx(const AV1_COMMON *cm, const MB_MODE_INFO *mbmi, const MB_MODE_INFO_EXT *mbmi_ext, aom_writer *w) { uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame); assert(mbmi->ref_mv_idx < 3); #if CONFIG_EXT_INTER if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) { #else if (mbmi->mode == NEWMV) { #endif int idx; for (idx = 0; idx < 2; ++idx) { if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) { uint8_t drl_ctx = av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx); aom_prob drl_prob = cm->fc->drl_prob[drl_ctx]; aom_write(w, mbmi->ref_mv_idx != idx, drl_prob); if (mbmi->ref_mv_idx == idx) return; } } return; } if (have_nearmv_in_inter_mode(mbmi->mode)) { int idx; // TODO(jingning): Temporary solution to compensate the NEARESTMV offset. for (idx = 1; idx < 3; ++idx) { if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) { uint8_t drl_ctx = av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx); aom_prob drl_prob = cm->fc->drl_prob[drl_ctx]; aom_write(w, mbmi->ref_mv_idx != (idx - 1), drl_prob); if (mbmi->ref_mv_idx == (idx - 1)) return; } } return; } } #if CONFIG_EXT_INTER static void write_inter_compound_mode(AV1_COMMON *cm, aom_writer *w, PREDICTION_MODE mode, const int16_t mode_ctx) { const aom_prob *const inter_compound_probs = cm->fc->inter_compound_mode_probs[mode_ctx]; assert(is_inter_compound_mode(mode)); av1_write_token(w, av1_inter_compound_mode_tree, inter_compound_probs, &inter_compound_mode_encodings[INTER_COMPOUND_OFFSET(mode)]); } #endif // CONFIG_EXT_INTER static void encode_unsigned_max(struct aom_write_bit_buffer *wb, int data, int max) { aom_wb_write_literal(wb, data, get_unsigned_bits(max)); } #if !CONFIG_EC_ADAPT || \ (CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION || CONFIG_EXT_INTER) static void prob_diff_update(const aom_tree_index *tree, aom_prob probs[/*n - 1*/], const unsigned int counts[/*n - 1*/], int n, int probwt, aom_writer *w) { int i; unsigned int branch_ct[32][2]; // Assuming max number of probabilities <= 32 assert(n <= 32); av1_tree_probs_from_distribution(tree, branch_ct, counts); for (i = 0; i < n - 1; ++i) av1_cond_prob_diff_update(w, &probs[i], branch_ct[i], probwt); } #endif #if CONFIG_EXT_INTER || !CONFIG_EC_ADAPT static int prob_diff_update_savings(const aom_tree_index *tree, aom_prob probs[/*n - 1*/], const unsigned int counts[/*n - 1*/], int n, int probwt) { int i; unsigned int branch_ct[32][2]; int savings = 0; // Assuming max number of probabilities <= 32 assert(n <= 32); av1_tree_probs_from_distribution(tree, branch_ct, counts); for (i = 0; i < n - 1; ++i) { savings += av1_cond_prob_diff_update_savings(&probs[i], branch_ct[i], probwt); } return savings; } #endif // CONFIG_EXT_INTER || !CONFIG_EC_ADAPT #if CONFIG_VAR_TX static void write_tx_size_vartx(const AV1_COMMON *cm, const MACROBLOCKD *xd, const MB_MODE_INFO *mbmi, TX_SIZE tx_size, int depth, int blk_row, int blk_col, aom_writer *w) { const int tx_row = blk_row >> 1; const int tx_col = blk_col >> 1; const int max_blocks_high = max_block_high(xd, mbmi->sb_type, 0); const int max_blocks_wide = max_block_wide(xd, mbmi->sb_type, 0); int ctx = txfm_partition_context(xd->above_txfm_context + blk_col, xd->left_txfm_context + blk_row, mbmi->sb_type, tx_size); if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return; if (depth == MAX_VARTX_DEPTH) { txfm_partition_update(xd->above_txfm_context + blk_col, xd->left_txfm_context + blk_row, tx_size, tx_size); return; } if (tx_size == mbmi->inter_tx_size[tx_row][tx_col]) { aom_write(w, 0, cm->fc->txfm_partition_prob[ctx]); txfm_partition_update(xd->above_txfm_context + blk_col, xd->left_txfm_context + blk_row, tx_size, tx_size); } else { const TX_SIZE sub_txs = sub_tx_size_map[tx_size]; const int bsl = tx_size_wide_unit[sub_txs]; int i; aom_write(w, 1, cm->fc->txfm_partition_prob[ctx]); if (tx_size == TX_8X8) { txfm_partition_update(xd->above_txfm_context + blk_col, xd->left_txfm_context + blk_row, sub_txs, tx_size); return; } assert(bsl > 0); for (i = 0; i < 4; ++i) { int offsetr = blk_row + (i >> 1) * bsl; int offsetc = blk_col + (i & 0x01) * bsl; write_tx_size_vartx(cm, xd, mbmi, sub_txs, depth + 1, offsetr, offsetc, w); } } } static void update_txfm_partition_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts, int probwt) { int k; for (k = 0; k < TXFM_PARTITION_CONTEXTS; ++k) av1_cond_prob_diff_update(w, &cm->fc->txfm_partition_prob[k], counts->txfm_partition[k], probwt); } #endif static void write_selected_tx_size(const AV1_COMMON *cm, const MACROBLOCKD *xd, aom_writer *w) { const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; const BLOCK_SIZE bsize = mbmi->sb_type; #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; (void)cm; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif // For sub8x8 blocks the tx_size symbol does not need to be sent #if CONFIG_CB4X4 && (CONFIG_VAR_TX || CONFIG_EXT_TX) && CONFIG_RECT_TX if (bsize > BLOCK_4X4) { #else if (bsize >= BLOCK_8X8) { #endif const TX_SIZE tx_size = mbmi->tx_size; const int is_inter = is_inter_block(mbmi); const int tx_size_ctx = get_tx_size_context(xd); const int tx_size_cat = is_inter ? inter_tx_size_cat_lookup[bsize] : intra_tx_size_cat_lookup[bsize]; const TX_SIZE coded_tx_size = txsize_sqr_up_map[tx_size]; const int depth = tx_size_to_depth(coded_tx_size); #if CONFIG_EXT_TX && CONFIG_RECT_TX assert(IMPLIES(is_rect_tx(tx_size), is_rect_tx_allowed(xd, mbmi))); #endif // CONFIG_EXT_TX && CONFIG_RECT_TX aom_write_symbol(w, depth, ec_ctx->tx_size_cdf[tx_size_cat][tx_size_ctx], tx_size_cat + 2); #if CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT if (is_quarter_tx_allowed(xd, mbmi, is_inter) && tx_size != coded_tx_size) aom_write(w, tx_size == quarter_txsize_lookup[bsize], cm->fc->quarter_tx_size_prob); #endif // CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT } } static void update_inter_mode_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts) { int i; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i) av1_cond_prob_diff_update(w, &cm->fc->newmv_prob[i], counts->newmv_mode[i], probwt); for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i) av1_cond_prob_diff_update(w, &cm->fc->zeromv_prob[i], counts->zeromv_mode[i], probwt); for (i = 0; i < REFMV_MODE_CONTEXTS; ++i) av1_cond_prob_diff_update(w, &cm->fc->refmv_prob[i], counts->refmv_mode[i], probwt); for (i = 0; i < DRL_MODE_CONTEXTS; ++i) av1_cond_prob_diff_update(w, &cm->fc->drl_prob[i], counts->drl_mode[i], probwt); } #if CONFIG_EXT_INTER static void update_inter_compound_mode_probs(AV1_COMMON *cm, int probwt, aom_writer *w) { const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) - av1_cost_zero(GROUP_DIFF_UPDATE_PROB); int i; int savings = 0; int do_update = 0; for (i = 0; i < INTER_MODE_CONTEXTS; ++i) { savings += prob_diff_update_savings( av1_inter_compound_mode_tree, cm->fc->inter_compound_mode_probs[i], cm->counts.inter_compound_mode[i], INTER_COMPOUND_MODES, probwt); } do_update = savings > savings_thresh; aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB); if (do_update) { for (i = 0; i < INTER_MODE_CONTEXTS; ++i) { prob_diff_update( av1_inter_compound_mode_tree, cm->fc->inter_compound_mode_probs[i], cm->counts.inter_compound_mode[i], INTER_COMPOUND_MODES, probwt, w); } } } #endif // CONFIG_EXT_INTER static int write_skip(const AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id, const MODE_INFO *mi, aom_writer *w) { if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) { return 1; } else { const int skip = mi->mbmi.skip; aom_write(w, skip, av1_get_skip_prob(cm, xd)); return skip; } } #if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION static void write_motion_mode(const AV1_COMMON *cm, const MODE_INFO *mi, aom_writer *w) { const MB_MODE_INFO *mbmi = &mi->mbmi; MOTION_MODE last_motion_mode_allowed = motion_mode_allowed( #if CONFIG_GLOBAL_MOTION && SEPARATE_GLOBAL_MOTION 0, cm->global_motion, #endif // CONFIG_GLOBAL_MOTION && SEPARATE_GLOBAL_MOTION mi); if (last_motion_mode_allowed == SIMPLE_TRANSLATION) return; #if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION if (last_motion_mode_allowed == OBMC_CAUSAL) { aom_write(w, mbmi->motion_mode == OBMC_CAUSAL, cm->fc->obmc_prob[mbmi->sb_type]); } else { #endif // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION av1_write_token(w, av1_motion_mode_tree, cm->fc->motion_mode_prob[mbmi->sb_type], &motion_mode_encodings[mbmi->motion_mode]); #if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION } #endif // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION } #endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION #if CONFIG_DELTA_Q static void write_delta_qindex(const AV1_COMMON *cm, const MACROBLOCKD *xd, int delta_qindex, aom_writer *w) { int sign = delta_qindex < 0; int abs = sign ? -delta_qindex : delta_qindex; int rem_bits, thr; int smallval = abs < DELTA_Q_SMALL ? 1 : 0; #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; (void)cm; #else FRAME_CONTEXT *ec_ctx = cm->fc; (void)xd; #endif aom_write_symbol(w, AOMMIN(abs, DELTA_Q_SMALL), ec_ctx->delta_q_cdf, DELTA_Q_PROBS + 1); if (!smallval) { rem_bits = OD_ILOG_NZ(abs - 1) - 1; thr = (1 << rem_bits) + 1; aom_write_literal(w, rem_bits, 3); aom_write_literal(w, abs - thr, rem_bits); } if (abs > 0) { aom_write_bit(w, sign); } } #if !CONFIG_EC_ADAPT static void update_delta_q_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts) { int k; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif #if CONFIG_EXT_DELTA_Q if (!cm->delta_q_present_flag) return; #endif // CONFIG_EXT_DELTA_Q for (k = 0; k < DELTA_Q_PROBS; ++k) { av1_cond_prob_diff_update(w, &cm->fc->delta_q_prob[k], counts->delta_q[k], probwt); } } #endif // CONFIG_EC_ADAPT #if CONFIG_EXT_DELTA_Q static void write_delta_lflevel(const AV1_COMMON *cm, const MACROBLOCKD *xd, int delta_lflevel, aom_writer *w) { int sign = delta_lflevel < 0; int abs = sign ? -delta_lflevel : delta_lflevel; int rem_bits, thr; int smallval = abs < DELTA_LF_SMALL ? 1 : 0; #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; (void)cm; #else FRAME_CONTEXT *ec_ctx = cm->fc; (void)xd; #endif aom_write_symbol(w, AOMMIN(abs, DELTA_LF_SMALL), ec_ctx->delta_lf_cdf, DELTA_LF_PROBS + 1); if (!smallval) { rem_bits = OD_ILOG_NZ(abs - 1) - 1; thr = (1 << rem_bits) + 1; aom_write_literal(w, rem_bits, 3); aom_write_literal(w, abs - thr, rem_bits); } if (abs > 0) { aom_write_bit(w, sign); } } #if !CONFIG_EC_ADAPT static void update_delta_lf_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts) { int k; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif if (!cm->delta_lf_present_flag) return; for (k = 0; k < DELTA_LF_PROBS; ++k) { av1_cond_prob_diff_update(w, &cm->fc->delta_lf_prob[k], counts->delta_lf[k], probwt); } } #endif // CONFIG_EC_ADAPT #endif // CONFIG_EXT_DELTA_Q #endif // CONFIG_DELTA_Q static void update_skip_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts) { int k; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif for (k = 0; k < SKIP_CONTEXTS; ++k) { av1_cond_prob_diff_update(w, &cm->fc->skip_probs[k], counts->skip[k], probwt); } } #if !CONFIG_EC_ADAPT static void update_switchable_interp_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts) { int j; for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j) { #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif prob_diff_update( av1_switchable_interp_tree, cm->fc->switchable_interp_prob[j], counts->switchable_interp[j], SWITCHABLE_FILTERS, probwt, w); } } #endif #if !CONFIG_EC_ADAPT #if CONFIG_EXT_TX static void update_ext_tx_probs(AV1_COMMON *cm, aom_writer *w) { const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) - av1_cost_zero(GROUP_DIFF_UPDATE_PROB); int i, j; int s; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif for (s = 1; s < EXT_TX_SETS_INTER; ++s) { int savings = 0; int do_update = 0; for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { if (!use_inter_ext_tx_for_txsize[s][i]) continue; savings += prob_diff_update_savings( av1_ext_tx_inter_tree[s], cm->fc->inter_ext_tx_prob[s][i], cm->counts.inter_ext_tx[s][i], num_ext_tx_set[ext_tx_set_type_inter[s]], probwt); } do_update = savings > savings_thresh; aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB); if (do_update) { for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { if (!use_inter_ext_tx_for_txsize[s][i]) continue; prob_diff_update(av1_ext_tx_inter_tree[s], cm->fc->inter_ext_tx_prob[s][i], cm->counts.inter_ext_tx[s][i], num_ext_tx_set[ext_tx_set_type_inter[s]], probwt, w); } } } for (s = 1; s < EXT_TX_SETS_INTRA; ++s) { int savings = 0; int do_update = 0; for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { if (!use_intra_ext_tx_for_txsize[s][i]) continue; for (j = 0; j < INTRA_MODES; ++j) savings += prob_diff_update_savings( av1_ext_tx_intra_tree[s], cm->fc->intra_ext_tx_prob[s][i][j], cm->counts.intra_ext_tx[s][i][j], num_ext_tx_set[ext_tx_set_type_intra[s]], probwt); } do_update = savings > savings_thresh; aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB); if (do_update) { for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { if (!use_intra_ext_tx_for_txsize[s][i]) continue; for (j = 0; j < INTRA_MODES; ++j) prob_diff_update(av1_ext_tx_intra_tree[s], cm->fc->intra_ext_tx_prob[s][i][j], cm->counts.intra_ext_tx[s][i][j], num_ext_tx_set[ext_tx_set_type_intra[s]], probwt, w); } } } } #else static void update_ext_tx_probs(AV1_COMMON *cm, aom_writer *w) { const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) - av1_cost_zero(GROUP_DIFF_UPDATE_PROB); int i, j; int savings = 0; int do_update = 0; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { for (j = 0; j < TX_TYPES; ++j) savings += prob_diff_update_savings( av1_ext_tx_tree, cm->fc->intra_ext_tx_prob[i][j], cm->counts.intra_ext_tx[i][j], TX_TYPES, probwt); } do_update = savings > savings_thresh; aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB); if (do_update) { for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { for (j = 0; j < TX_TYPES; ++j) { prob_diff_update(av1_ext_tx_tree, cm->fc->intra_ext_tx_prob[i][j], cm->counts.intra_ext_tx[i][j], TX_TYPES, probwt, w); } } } savings = 0; for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { savings += prob_diff_update_savings(av1_ext_tx_tree, cm->fc->inter_ext_tx_prob[i], cm->counts.inter_ext_tx[i], TX_TYPES, probwt); } do_update = savings > savings_thresh; aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB); if (do_update) { for (i = TX_4X4; i < EXT_TX_SIZES; ++i) { prob_diff_update(av1_ext_tx_tree, cm->fc->inter_ext_tx_prob[i], cm->counts.inter_ext_tx[i], TX_TYPES, probwt, w); } } } #endif // CONFIG_EXT_TX #endif // !CONFIG_EC_ADAPT #if CONFIG_PALETTE static void pack_palette_tokens(aom_writer *w, const TOKENEXTRA **tp, int n, int num) { int i; const TOKENEXTRA *p = *tp; for (i = 0; i < num; ++i) { av1_write_token( w, av1_palette_color_index_tree[n - PALETTE_MIN_SIZE], p->context_tree, &palette_color_index_encodings[n - PALETTE_MIN_SIZE][p->token]); ++p; } *tp = p; } #endif // CONFIG_PALETTE #if !CONFIG_PVQ #if CONFIG_SUPERTX static void update_supertx_probs(AV1_COMMON *cm, int probwt, aom_writer *w) { const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) - av1_cost_zero(GROUP_DIFF_UPDATE_PROB); int i, j; int savings = 0; int do_update = 0; for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) { for (j = TX_8X8; j < TX_SIZES; ++j) { savings += av1_cond_prob_diff_update_savings( &cm->fc->supertx_prob[i][j], cm->counts.supertx[i][j], probwt); } } do_update = savings > savings_thresh; aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB); if (do_update) { for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) { for (j = TX_8X8; j < TX_SIZES; ++j) { av1_cond_prob_diff_update(w, &cm->fc->supertx_prob[i][j], cm->counts.supertx[i][j], probwt); } } } } #endif // CONFIG_SUPERTX #if CONFIG_NEW_MULTISYMBOL static INLINE void write_coeff_extra(const aom_cdf_prob *const *cdf, int val, int n, aom_writer *w) { // Code the extra bits from LSB to MSB in groups of 4 int i = 0; int count = 0; while (count < n) { const int size = AOMMIN(n - count, 4); const int mask = (1 << size) - 1; aom_write_cdf(w, val & mask, cdf[i++], 1 << size); val >>= size; count += size; } } #else static INLINE void write_coeff_extra(const aom_prob *pb, int value, int num_bits, int skip_bits, aom_writer *w, TOKEN_STATS *token_stats) { // Code the extra bits from MSB to LSB 1 bit at a time int index; for (index = skip_bits; index < num_bits; ++index) { const int shift = num_bits - index - 1; const int bb = (value >> shift) & 1; aom_write_record(w, bb, pb[index], token_stats); } } #endif #if !CONFIG_LV_MAP static void pack_mb_tokens(aom_writer *w, const TOKENEXTRA **tp, const TOKENEXTRA *const stop, aom_bit_depth_t bit_depth, const TX_SIZE tx_size, TOKEN_STATS *token_stats) { const TOKENEXTRA *p = *tp; #if CONFIG_VAR_TX int count = 0; const int seg_eob = tx_size_2d[tx_size]; #endif while (p < stop && p->token != EOSB_TOKEN) { const int token = p->token; const int eob_val = p->eob_val; if (token == BLOCK_Z_TOKEN) { aom_write_symbol(w, 0, *p->head_cdf, HEAD_TOKENS + 1); p++; #if CONFIG_VAR_TX break; #endif continue; } const av1_extra_bit *const extra_bits = &av1_extra_bits[token]; if (eob_val == LAST_EOB) { // Just code a flag indicating whether the value is >1 or 1. aom_write_bit(w, token != ONE_TOKEN); } else { int comb_symb = 2 * AOMMIN(token, TWO_TOKEN) - eob_val + p->first_val; aom_write_symbol(w, comb_symb, *p->head_cdf, HEAD_TOKENS + p->first_val); } if (token > ONE_TOKEN) { aom_write_symbol(w, token - TWO_TOKEN, *p->tail_cdf, TAIL_TOKENS); } if (extra_bits->base_val) { const int bit_string = p->extra; const int bit_string_length = extra_bits->len; // Length of extra bits to const int is_cat6 = (extra_bits->base_val == CAT6_MIN_VAL); // be written excluding // the sign bit. int skip_bits = is_cat6 ? (int)sizeof(av1_cat6_prob) - av1_get_cat6_extrabits_size(tx_size, bit_depth) : 0; assert(!(bit_string >> (bit_string_length - skip_bits + 1))); if (bit_string_length > 0) #if CONFIG_NEW_MULTISYMBOL write_coeff_extra(extra_bits->cdf, bit_string >> 1, bit_string_length - skip_bits, w); #else write_coeff_extra(extra_bits->prob, bit_string >> 1, bit_string_length, skip_bits, w, token_stats); #endif aom_write_bit_record(w, bit_string & 1, token_stats); } ++p; #if CONFIG_VAR_TX ++count; if (eob_val == EARLY_EOB || count == seg_eob) break; #endif } *tp = p; } #endif // !CONFIG_LV_MAP #else // !CONFIG_PVQ static PVQ_INFO *get_pvq_block(PVQ_QUEUE *pvq_q) { PVQ_INFO *pvq; assert(pvq_q->curr_pos <= pvq_q->last_pos); assert(pvq_q->curr_pos < pvq_q->buf_len); pvq = pvq_q->buf + pvq_q->curr_pos; ++pvq_q->curr_pos; return pvq; } static void pack_pvq_tokens(aom_writer *w, MACROBLOCK *const x, MACROBLOCKD *const xd, int plane, BLOCK_SIZE bsize, const TX_SIZE tx_size) { PVQ_INFO *pvq; int idx, idy; const struct macroblockd_plane *const pd = &xd->plane[plane]; od_adapt_ctx *adapt; int max_blocks_wide; int max_blocks_high; int step = (1 << tx_size); const BLOCK_SIZE plane_bsize = get_plane_block_size(AOMMAX(bsize, BLOCK_8X8), pd); adapt = x->daala_enc.state.adapt; max_blocks_wide = max_block_wide(xd, plane_bsize, plane); max_blocks_high = max_block_high(xd, plane_bsize, plane); for (idy = 0; idy < max_blocks_high; idy += step) { for (idx = 0; idx < max_blocks_wide; idx += step) { const int is_keyframe = 0; const int encode_flip = 0; const int flip = 0; int i; const int has_dc_skip = 1; int *exg = &adapt->pvq.pvq_exg[plane][tx_size][0]; int *ext = adapt->pvq.pvq_ext + tx_size * PVQ_MAX_PARTITIONS; generic_encoder *model = adapt->pvq.pvq_param_model; pvq = get_pvq_block(x->pvq_q); // encode block skip info aom_write_symbol(w, pvq->ac_dc_coded, adapt->skip_cdf[2 * tx_size + (plane != 0)], 4); // AC coeffs coded? if (pvq->ac_dc_coded & AC_CODED) { assert(pvq->bs == tx_size); for (i = 0; i < pvq->nb_bands; i++) { if (i == 0 || (!pvq->skip_rest && !(pvq->skip_dir & (1 << ((i - 1) % 3))))) { pvq_encode_partition( w, pvq->qg[i], pvq->theta[i], pvq->y + pvq->off[i], pvq->size[i], pvq->k[i], model, adapt, exg + i, ext + i, (plane != 0) * OD_TXSIZES * PVQ_MAX_PARTITIONS + pvq->bs * PVQ_MAX_PARTITIONS + i, is_keyframe, i == 0 && (i < pvq->nb_bands - 1), pvq->skip_rest, encode_flip, flip); } if (i == 0 && !pvq->skip_rest && pvq->bs > 0) { aom_write_symbol( w, pvq->skip_dir, &adapt->pvq .pvq_skip_dir_cdf[(plane != 0) + 2 * (pvq->bs - 1)][0], 7); } } } // Encode residue of DC coeff, if exist. if (!has_dc_skip || (pvq->ac_dc_coded & DC_CODED)) { generic_encode(w, &adapt->model_dc[plane], abs(pvq->dq_dc_residue) - has_dc_skip, &adapt->ex_dc[plane][pvq->bs][0], 2); } if ((pvq->ac_dc_coded & DC_CODED)) { aom_write_bit(w, pvq->dq_dc_residue < 0); } } } // for (idy = 0; } #endif // !CONFIG_PVG #if CONFIG_VAR_TX && !CONFIG_COEF_INTERLEAVE #if CONFIG_LV_MAP static void pack_txb_tokens(aom_writer *w, #if CONFIG_LV_MAP AV1_COMMON *cm, #endif // CONFIG_LV_MAP const TOKENEXTRA **tp, const TOKENEXTRA *const tok_end, #if CONFIG_PVQ || CONFIG_LV_MAP MACROBLOCK *const x, #endif MACROBLOCKD *xd, MB_MODE_INFO *mbmi, int plane, BLOCK_SIZE plane_bsize, aom_bit_depth_t bit_depth, int block, int blk_row, int blk_col, TX_SIZE tx_size, TOKEN_STATS *token_stats) { const struct macroblockd_plane *const pd = &xd->plane[plane]; const BLOCK_SIZE bsize = txsize_to_bsize[tx_size]; const int tx_row = blk_row >> (1 - pd->subsampling_y); const int tx_col = blk_col >> (1 - pd->subsampling_x); TX_SIZE plane_tx_size; const int max_blocks_high = max_block_high(xd, plane_bsize, plane); const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane); if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return; plane_tx_size = plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0] : mbmi->inter_tx_size[tx_row][tx_col]; if (tx_size == plane_tx_size) { TOKEN_STATS tmp_token_stats; init_token_stats(&tmp_token_stats); #if !CONFIG_PVQ 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, block, plane, tcoeff, eob, &txb_ctx); #else pack_pvq_tokens(w, x, xd, plane, bsize, tx_size); #endif #if CONFIG_RD_DEBUG token_stats->txb_coeff_cost_map[blk_row][blk_col] = tmp_token_stats.cost; token_stats->cost += tmp_token_stats.cost; #endif } else { const TX_SIZE sub_txs = sub_tx_size_map[tx_size]; const int bsl = tx_size_wide_unit[sub_txs]; int i; assert(bsl > 0); for (i = 0; i < 4; ++i) { const int offsetr = blk_row + (i >> 1) * bsl; const int offsetc = blk_col + (i & 0x01) * bsl; const int step = tx_size_wide_unit[sub_txs] * tx_size_high_unit[sub_txs]; if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue; pack_txb_tokens(w, #if CONFIG_LV_MAP cm, #endif tp, tok_end, #if CONFIG_PVQ || CONFIG_LV_MAP x, #endif xd, mbmi, plane, plane_bsize, bit_depth, block, offsetr, offsetc, sub_txs, token_stats); block += step; } } } #else // CONFIG_LV_MAP static void pack_txb_tokens(aom_writer *w, const TOKENEXTRA **tp, const TOKENEXTRA *const tok_end, #if CONFIG_PVQ MACROBLOCK *const x, #endif MACROBLOCKD *xd, MB_MODE_INFO *mbmi, int plane, BLOCK_SIZE plane_bsize, aom_bit_depth_t bit_depth, int block, int blk_row, int blk_col, TX_SIZE tx_size, TOKEN_STATS *token_stats) { const struct macroblockd_plane *const pd = &xd->plane[plane]; const BLOCK_SIZE bsize = txsize_to_bsize[tx_size]; const int tx_row = blk_row >> (1 - pd->subsampling_y); const int tx_col = blk_col >> (1 - pd->subsampling_x); TX_SIZE plane_tx_size; const int max_blocks_high = max_block_high(xd, plane_bsize, plane); const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane); if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return; plane_tx_size = plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0] : mbmi->inter_tx_size[tx_row][tx_col]; if (tx_size == plane_tx_size) { TOKEN_STATS tmp_token_stats; init_token_stats(&tmp_token_stats); #if !CONFIG_PVQ pack_mb_tokens(w, tp, tok_end, bit_depth, tx_size, &tmp_token_stats); #else pack_pvq_tokens(w, x, xd, plane, bsize, tx_size); #endif #if CONFIG_RD_DEBUG token_stats->txb_coeff_cost_map[blk_row][blk_col] = tmp_token_stats.cost; token_stats->cost += tmp_token_stats.cost; #endif } else { const TX_SIZE sub_txs = sub_tx_size_map[tx_size]; const int bsl = tx_size_wide_unit[sub_txs]; int i; assert(bsl > 0); for (i = 0; i < 4; ++i) { const int offsetr = blk_row + (i >> 1) * bsl; const int offsetc = blk_col + (i & 0x01) * bsl; const int step = tx_size_wide_unit[sub_txs] * tx_size_high_unit[sub_txs]; if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue; pack_txb_tokens(w, tp, tok_end, #if CONFIG_PVQ x, #endif xd, mbmi, plane, plane_bsize, bit_depth, block, offsetr, offsetc, sub_txs, token_stats); block += step; } } } #endif // CONFIG_LV_MAP #endif // CONFIG_VAR_TX static void write_segment_id(aom_writer *w, const struct segmentation *seg, struct segmentation_probs *segp, int segment_id) { if (seg->enabled && seg->update_map) { aom_write_symbol(w, segment_id, segp->tree_cdf, MAX_SEGMENTS); } } // This function encodes the reference frame static void write_ref_frames(const AV1_COMMON *cm, const MACROBLOCKD *xd, aom_writer *w) { const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; const int is_compound = has_second_ref(mbmi); const int segment_id = mbmi->segment_id; // If segment level coding of this signal is disabled... // or the segment allows multiple reference frame options if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) { assert(!is_compound); assert(mbmi->ref_frame[0] == get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME)); } else { // does the feature use compound prediction or not // (if not specified at the frame/segment level) if (cm->reference_mode == REFERENCE_MODE_SELECT) { #if SUB8X8_COMP_REF aom_write(w, is_compound, av1_get_reference_mode_prob(cm, xd)); #else if (mbmi->sb_type != BLOCK_4X4) aom_write(w, is_compound, av1_get_reference_mode_prob(cm, xd)); #endif } else { assert((!is_compound) == (cm->reference_mode == SINGLE_REFERENCE)); } if (is_compound) { #if CONFIG_EXT_REFS const int bit = (mbmi->ref_frame[0] == GOLDEN_FRAME || mbmi->ref_frame[0] == LAST3_FRAME); const int bit_bwd = mbmi->ref_frame[1] == ALTREF_FRAME; #else // CONFIG_EXT_REFS const int bit = mbmi->ref_frame[0] == GOLDEN_FRAME; #endif // CONFIG_EXT_REFS aom_write(w, bit, av1_get_pred_prob_comp_ref_p(cm, xd)); #if CONFIG_EXT_REFS if (!bit) { const int bit1 = mbmi->ref_frame[0] == LAST_FRAME; aom_write(w, bit1, av1_get_pred_prob_comp_ref_p1(cm, xd)); } else { const int bit2 = mbmi->ref_frame[0] == GOLDEN_FRAME; aom_write(w, bit2, av1_get_pred_prob_comp_ref_p2(cm, xd)); } aom_write(w, bit_bwd, av1_get_pred_prob_comp_bwdref_p(cm, xd)); #endif // CONFIG_EXT_REFS } else { #if CONFIG_EXT_REFS const int bit0 = (mbmi->ref_frame[0] == ALTREF_FRAME || mbmi->ref_frame[0] == BWDREF_FRAME); aom_write(w, bit0, av1_get_pred_prob_single_ref_p1(cm, xd)); if (bit0) { const int bit1 = mbmi->ref_frame[0] == ALTREF_FRAME; aom_write(w, bit1, av1_get_pred_prob_single_ref_p2(cm, xd)); } else { const int bit2 = (mbmi->ref_frame[0] == LAST3_FRAME || mbmi->ref_frame[0] == GOLDEN_FRAME); aom_write(w, bit2, av1_get_pred_prob_single_ref_p3(cm, xd)); if (!bit2) { const int bit3 = mbmi->ref_frame[0] != LAST_FRAME; aom_write(w, bit3, av1_get_pred_prob_single_ref_p4(cm, xd)); } else { const int bit4 = mbmi->ref_frame[0] != LAST3_FRAME; aom_write(w, bit4, av1_get_pred_prob_single_ref_p5(cm, xd)); } } #else // CONFIG_EXT_REFS const int bit0 = mbmi->ref_frame[0] != LAST_FRAME; aom_write(w, bit0, av1_get_pred_prob_single_ref_p1(cm, xd)); if (bit0) { const int bit1 = mbmi->ref_frame[0] != GOLDEN_FRAME; aom_write(w, bit1, av1_get_pred_prob_single_ref_p2(cm, xd)); } #endif // CONFIG_EXT_REFS } } } #if CONFIG_FILTER_INTRA static void write_filter_intra_mode_info(const AV1_COMMON *const cm, const MACROBLOCKD *xd, const MB_MODE_INFO *const mbmi, int mi_row, int mi_col, aom_writer *w) { if (mbmi->mode == DC_PRED #if CONFIG_PALETTE && mbmi->palette_mode_info.palette_size[0] == 0 #endif // CONFIG_PALETTE ) { aom_write(w, mbmi->filter_intra_mode_info.use_filter_intra_mode[0], cm->fc->filter_intra_probs[0]); if (mbmi->filter_intra_mode_info.use_filter_intra_mode[0]) { const FILTER_INTRA_MODE mode = mbmi->filter_intra_mode_info.filter_intra_mode[0]; write_uniform(w, FILTER_INTRA_MODES, mode); } } #if CONFIG_CB4X4 if (!is_chroma_reference(mi_row, mi_col, mbmi->sb_type, xd->plane[1].subsampling_x, xd->plane[1].subsampling_y)) return; #else (void)xd; (void)mi_row; (void)mi_col; #endif // CONFIG_CB4X4 if (mbmi->uv_mode == DC_PRED #if CONFIG_PALETTE && mbmi->palette_mode_info.palette_size[1] == 0 #endif // CONFIG_PALETTE ) { aom_write(w, mbmi->filter_intra_mode_info.use_filter_intra_mode[1], cm->fc->filter_intra_probs[1]); if (mbmi->filter_intra_mode_info.use_filter_intra_mode[1]) { const FILTER_INTRA_MODE mode = mbmi->filter_intra_mode_info.filter_intra_mode[1]; write_uniform(w, FILTER_INTRA_MODES, mode); } } } #endif // CONFIG_FILTER_INTRA #if CONFIG_EXT_INTRA static void write_intra_angle_info(const MACROBLOCKD *xd, FRAME_CONTEXT *const ec_ctx, aom_writer *w) { const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; const BLOCK_SIZE bsize = mbmi->sb_type; #if CONFIG_INTRA_INTERP const int intra_filter_ctx = av1_get_pred_context_intra_interp(xd); int p_angle; #endif // CONFIG_INTRA_INTERP (void)ec_ctx; if (bsize < BLOCK_8X8) return; if (av1_is_directional_mode(mbmi->mode, bsize)) { write_uniform(w, 2 * MAX_ANGLE_DELTA + 1, MAX_ANGLE_DELTA + mbmi->angle_delta[0]); #if CONFIG_INTRA_INTERP p_angle = mode_to_angle_map[mbmi->mode] + mbmi->angle_delta[0] * ANGLE_STEP; if (av1_is_intra_filter_switchable(p_angle)) { aom_write_symbol(w, mbmi->intra_filter, ec_ctx->intra_filter_cdf[intra_filter_ctx], INTRA_FILTERS); } #endif // CONFIG_INTRA_INTERP } if (av1_is_directional_mode(mbmi->uv_mode, bsize)) { write_uniform(w, 2 * MAX_ANGLE_DELTA + 1, MAX_ANGLE_DELTA + mbmi->angle_delta[1]); } } #endif // CONFIG_EXT_INTRA static void write_mb_interp_filter(AV1_COMP *cpi, const MACROBLOCKD *xd, aom_writer *w) { AV1_COMMON *const cm = &cpi->common; const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif if (!av1_is_interp_needed(xd)) { #if CONFIG_DUAL_FILTER for (int i = 0; i < 4; ++i) assert(mbmi->interp_filter[i] == (cm->interp_filter == SWITCHABLE ? EIGHTTAP_REGULAR : cm->interp_filter)); #else assert(mbmi->interp_filter == (cm->interp_filter == SWITCHABLE ? EIGHTTAP_REGULAR : cm->interp_filter)); #endif // CONFIG_DUAL_FILTER return; } if (cm->interp_filter == SWITCHABLE) { #if CONFIG_DUAL_FILTER int dir; for (dir = 0; dir < 2; ++dir) { if (has_subpel_mv_component(xd->mi[0], xd, dir) || (mbmi->ref_frame[1] > INTRA_FRAME && has_subpel_mv_component(xd->mi[0], xd, dir + 2))) { const int ctx = av1_get_pred_context_switchable_interp(xd, dir); aom_write_symbol(w, av1_switchable_interp_ind[mbmi->interp_filter[dir]], ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS); ++cpi->interp_filter_selected[0][mbmi->interp_filter[dir]]; } else { assert(mbmi->interp_filter[dir] == EIGHTTAP_REGULAR); } } #else { const int ctx = av1_get_pred_context_switchable_interp(xd); aom_write_symbol(w, av1_switchable_interp_ind[mbmi->interp_filter], ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS); ++cpi->interp_filter_selected[0][mbmi->interp_filter]; } #endif // CONFIG_DUAL_FILTER } } #if CONFIG_PALETTE #if CONFIG_PALETTE_DELTA_ENCODING // Transmit color values with delta encoding. Write the first value as // literal, and the deltas between each value and the previous one. "min_val" is // the smallest possible value of the deltas. static void delta_encode_palette_colors(const int *colors, int num, int bit_depth, int min_val, aom_writer *w) { if (num <= 0) return; assert(colors[0] < (1 << bit_depth)); aom_write_literal(w, colors[0], bit_depth); if (num == 1) return; int max_delta = 0; int deltas[PALETTE_MAX_SIZE]; memset(deltas, 0, sizeof(deltas)); for (int i = 1; i < num; ++i) { assert(colors[i] < (1 << bit_depth)); const int delta = colors[i] - colors[i - 1]; deltas[i - 1] = delta; assert(delta >= min_val); if (delta > max_delta) max_delta = delta; } const int min_bits = bit_depth - 3; int bits = AOMMAX(av1_ceil_log2(max_delta + 1 - min_val), min_bits); assert(bits <= bit_depth); int range = (1 << bit_depth) - colors[0] - min_val; aom_write_literal(w, bits - min_bits, 2); for (int i = 0; i < num - 1; ++i) { aom_write_literal(w, deltas[i] - min_val, bits); range -= deltas[i]; bits = AOMMIN(bits, av1_ceil_log2(range)); } } // Transmit luma palette color values. First signal if each color in the color // cache is used. Those colors that are not in the cache are transmitted with // delta encoding. static void write_palette_colors_y(const MACROBLOCKD *const xd, const PALETTE_MODE_INFO *const pmi, int bit_depth, aom_writer *w) { const int n = pmi->palette_size[0]; const MODE_INFO *const above_mi = xd->above_mi; const MODE_INFO *const left_mi = xd->left_mi; uint16_t color_cache[2 * PALETTE_MAX_SIZE]; const int n_cache = av1_get_palette_cache(above_mi, left_mi, 0, color_cache); int out_cache_colors[PALETTE_MAX_SIZE]; uint8_t cache_color_found[2 * PALETTE_MAX_SIZE]; const int n_out_cache = av1_index_color_cache(color_cache, n_cache, pmi->palette_colors, n, cache_color_found, out_cache_colors); int n_in_cache = 0; for (int i = 0; i < n_cache && n_in_cache < n; ++i) { const int found = cache_color_found[i]; aom_write_bit(w, found); n_in_cache += found; } assert(n_in_cache + n_out_cache == n); delta_encode_palette_colors(out_cache_colors, n_out_cache, bit_depth, 1, w); } // Write chroma palette color values. U channel is handled similarly to the luma // channel. For v channel, either use delta encoding or transmit raw values // directly, whichever costs less. static void write_palette_colors_uv(const MACROBLOCKD *const xd, const PALETTE_MODE_INFO *const pmi, int bit_depth, aom_writer *w) { const int n = pmi->palette_size[1]; const uint16_t *colors_u = pmi->palette_colors + PALETTE_MAX_SIZE; const uint16_t *colors_v = pmi->palette_colors + 2 * PALETTE_MAX_SIZE; // U channel colors. const MODE_INFO *const above_mi = xd->above_mi; const MODE_INFO *const left_mi = xd->left_mi; uint16_t color_cache[2 * PALETTE_MAX_SIZE]; const int n_cache = av1_get_palette_cache(above_mi, left_mi, 1, color_cache); int out_cache_colors[PALETTE_MAX_SIZE]; uint8_t cache_color_found[2 * PALETTE_MAX_SIZE]; const int n_out_cache = av1_index_color_cache( color_cache, n_cache, colors_u, n, cache_color_found, out_cache_colors); int n_in_cache = 0; for (int i = 0; i < n_cache && n_in_cache < n; ++i) { const int found = cache_color_found[i]; aom_write_bit(w, found); n_in_cache += found; } delta_encode_palette_colors(out_cache_colors, n_out_cache, bit_depth, 0, w); // V channel colors. Don't use color cache as the colors are not sorted. const int max_val = 1 << bit_depth; int zero_count = 0, min_bits_v = 0; int bits_v = av1_get_palette_delta_bits_v(pmi, bit_depth, &zero_count, &min_bits_v); const int rate_using_delta = 2 + bit_depth + (bits_v + 1) * (n - 1) - zero_count; const int rate_using_raw = bit_depth * n; if (rate_using_delta < rate_using_raw) { // delta encoding assert(colors_v[0] < (1 << bit_depth)); aom_write_bit(w, 1); aom_write_literal(w, bits_v - min_bits_v, 2); aom_write_literal(w, colors_v[0], bit_depth); for (int i = 1; i < n; ++i) { assert(colors_v[i] < (1 << bit_depth)); if (colors_v[i] == colors_v[i - 1]) { // No need to signal sign bit. aom_write_literal(w, 0, bits_v); continue; } const int delta = abs((int)colors_v[i] - colors_v[i - 1]); const int sign_bit = colors_v[i] < colors_v[i - 1]; if (delta <= max_val - delta) { aom_write_literal(w, delta, bits_v); aom_write_bit(w, sign_bit); } else { aom_write_literal(w, max_val - delta, bits_v); aom_write_bit(w, !sign_bit); } } } else { // Transmit raw values. aom_write_bit(w, 0); for (int i = 0; i < n; ++i) { assert(colors_v[i] < (1 << bit_depth)); aom_write_literal(w, colors_v[i], bit_depth); } } } #endif // CONFIG_PALETTE_DELTA_ENCODING static void write_palette_mode_info(const AV1_COMMON *cm, const MACROBLOCKD *xd, const MODE_INFO *const mi, aom_writer *w) { const MB_MODE_INFO *const mbmi = &mi->mbmi; const MODE_INFO *const above_mi = xd->above_mi; const MODE_INFO *const left_mi = xd->left_mi; const BLOCK_SIZE bsize = mbmi->sb_type; const PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info; if (mbmi->mode == DC_PRED) { const int n = pmi->palette_size[0]; int palette_y_mode_ctx = 0; if (above_mi) palette_y_mode_ctx += (above_mi->mbmi.palette_mode_info.palette_size[0] > 0); if (left_mi) palette_y_mode_ctx += (left_mi->mbmi.palette_mode_info.palette_size[0] > 0); aom_write( w, n > 0, av1_default_palette_y_mode_prob[bsize - BLOCK_8X8][palette_y_mode_ctx]); if (n > 0) { av1_write_token(w, av1_palette_size_tree, av1_default_palette_y_size_prob[bsize - BLOCK_8X8], &palette_size_encodings[n - PALETTE_MIN_SIZE]); #if CONFIG_PALETTE_DELTA_ENCODING write_palette_colors_y(xd, pmi, cm->bit_depth, w); #else for (int i = 0; i < n; ++i) { assert(pmi->palette_colors[i] < (1 << cm->bit_depth)); aom_write_literal(w, pmi->palette_colors[i], cm->bit_depth); } #endif // CONFIG_PALETTE_DELTA_ENCODING write_uniform(w, n, pmi->palette_first_color_idx[0]); } } if (mbmi->uv_mode == DC_PRED) { const int n = pmi->palette_size[1]; const int palette_uv_mode_ctx = (pmi->palette_size[0] > 0); aom_write(w, n > 0, av1_default_palette_uv_mode_prob[palette_uv_mode_ctx]); if (n > 0) { av1_write_token(w, av1_palette_size_tree, av1_default_palette_uv_size_prob[bsize - BLOCK_8X8], &palette_size_encodings[n - PALETTE_MIN_SIZE]); #if CONFIG_PALETTE_DELTA_ENCODING write_palette_colors_uv(xd, pmi, cm->bit_depth, w); #else for (int i = 0; i < n; ++i) { assert(pmi->palette_colors[PALETTE_MAX_SIZE + i] < (1 << cm->bit_depth)); assert(pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] < (1 << cm->bit_depth)); aom_write_literal(w, pmi->palette_colors[PALETTE_MAX_SIZE + i], cm->bit_depth); aom_write_literal(w, pmi->palette_colors[2 * PALETTE_MAX_SIZE + i], cm->bit_depth); } #endif // CONFIG_PALETTE_DELTA_ENCODING write_uniform(w, n, pmi->palette_first_color_idx[1]); } } } #endif // CONFIG_PALETTE void av1_write_tx_type(const AV1_COMMON *const cm, const MACROBLOCKD *xd, #if CONFIG_SUPERTX const int supertx_enabled, #endif #if CONFIG_TXK_SEL int block, int plane, #endif aom_writer *w) { MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi; const int is_inter = is_inter_block(mbmi); #if CONFIG_VAR_TX const TX_SIZE tx_size = is_inter ? mbmi->min_tx_size : mbmi->tx_size; #else const TX_SIZE tx_size = mbmi->tx_size; #endif // CONFIG_VAR_TX #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif #if !CONFIG_TXK_SEL TX_TYPE tx_type = mbmi->tx_type; #else // Only y plane's tx_type is transmitted if (plane > 0) return; PLANE_TYPE plane_type = get_plane_type(plane); TX_TYPE tx_type = get_tx_type(plane_type, xd, block, tx_size); #endif if (!FIXED_TX_TYPE) { #if CONFIG_EXT_TX const TX_SIZE square_tx_size = txsize_sqr_map[tx_size]; const BLOCK_SIZE bsize = mbmi->sb_type; if (get_ext_tx_types(tx_size, bsize, is_inter, cm->reduced_tx_set_used) > 1 && ((!cm->seg.enabled && cm->base_qindex > 0) || (cm->seg.enabled && xd->qindex[mbmi->segment_id] > 0)) && !mbmi->skip && #if CONFIG_SUPERTX !supertx_enabled && #endif // CONFIG_SUPERTX !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { const int eset = get_ext_tx_set(tx_size, bsize, is_inter, cm->reduced_tx_set_used); if (is_inter) { assert(ext_tx_used_inter[eset][tx_type]); if (eset > 0) { aom_write_symbol(w, av1_ext_tx_inter_ind[eset][tx_type], ec_ctx->inter_ext_tx_cdf[eset][square_tx_size], ext_tx_cnt_inter[eset]); } } else if (ALLOW_INTRA_EXT_TX) { assert(ext_tx_used_intra[eset][tx_type]); if (eset > 0) { aom_write_symbol( w, av1_ext_tx_intra_ind[eset][tx_type], ec_ctx->intra_ext_tx_cdf[eset][square_tx_size][mbmi->mode], ext_tx_cnt_intra[eset]); } } } #else if (tx_size < TX_32X32 && ((!cm->seg.enabled && cm->base_qindex > 0) || (cm->seg.enabled && xd->qindex[mbmi->segment_id] > 0)) && !mbmi->skip && #if CONFIG_SUPERTX !supertx_enabled && #endif // CONFIG_SUPERTX !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { if (is_inter) { aom_write_symbol(w, av1_ext_tx_ind[tx_type], ec_ctx->inter_ext_tx_cdf[tx_size], TX_TYPES); } else { aom_write_symbol( w, av1_ext_tx_ind[tx_type], ec_ctx->intra_ext_tx_cdf[tx_size] [intra_mode_to_tx_type_context[mbmi->mode]], TX_TYPES); } } #endif // CONFIG_EXT_TX } } static void write_intra_mode(FRAME_CONTEXT *frame_ctx, BLOCK_SIZE bsize, PREDICTION_MODE mode, aom_writer *w) { aom_write_symbol(w, av1_intra_mode_ind[mode], frame_ctx->y_mode_cdf[size_group_lookup[bsize]], INTRA_MODES); } static void write_intra_uv_mode(FRAME_CONTEXT *frame_ctx, PREDICTION_MODE uv_mode, PREDICTION_MODE y_mode, aom_writer *w) { aom_write_symbol(w, av1_intra_mode_ind[uv_mode], frame_ctx->uv_mode_cdf[y_mode], INTRA_MODES); } #if CONFIG_CFL static void write_cfl_alphas(FRAME_CONTEXT *const frame_ctx, int skip, int ind, const CFL_SIGN_TYPE signs[CFL_SIGNS], aom_writer *w) { if (skip) { assert(ind == 0); assert(signs[CFL_PRED_U] == CFL_SIGN_POS); assert(signs[CFL_PRED_V] == CFL_SIGN_POS); } else { // Check for uninitialized signs if (cfl_alpha_codes[ind][CFL_PRED_U] == 0) assert(signs[CFL_PRED_U] == CFL_SIGN_POS); if (cfl_alpha_codes[ind][CFL_PRED_V] == 0) assert(signs[CFL_PRED_V] == CFL_SIGN_POS); // Write a symbol representing a combination of alpha Cb and alpha Cr. aom_write_symbol(w, ind, frame_ctx->cfl_alpha_cdf, CFL_ALPHABET_SIZE); // Signs are only signaled for nonzero codes. if (cfl_alpha_codes[ind][CFL_PRED_U] != 0) aom_write_bit(w, signs[CFL_PRED_U]); if (cfl_alpha_codes[ind][CFL_PRED_V] != 0) aom_write_bit(w, signs[CFL_PRED_V]); } } #endif static void pack_inter_mode_mvs(AV1_COMP *cpi, const int mi_row, const int mi_col, #if CONFIG_SUPERTX int supertx_enabled, #endif aom_writer *w) { AV1_COMMON *const cm = &cpi->common; #if CONFIG_DELTA_Q || CONFIG_EC_ADAPT MACROBLOCK *const x = &cpi->td.mb; MACROBLOCKD *const xd = &x->e_mbd; #else const MACROBLOCK *x = &cpi->td.mb; const MACROBLOCKD *xd = &x->e_mbd; #endif #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif const MODE_INFO *mi = xd->mi[0]; const struct segmentation *const seg = &cm->seg; struct segmentation_probs *const segp = &cm->fc->seg; const MB_MODE_INFO *const mbmi = &mi->mbmi; const MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext; const PREDICTION_MODE mode = mbmi->mode; const int segment_id = mbmi->segment_id; const BLOCK_SIZE bsize = mbmi->sb_type; const int allow_hp = cm->allow_high_precision_mv; const int is_inter = is_inter_block(mbmi); const int is_compound = has_second_ref(mbmi); int skip, ref; #if CONFIG_CB4X4 const int unify_bsize = 1; #else const int unify_bsize = 0; #endif (void)mi_row; (void)mi_col; if (seg->update_map) { if (seg->temporal_update) { const int pred_flag = mbmi->seg_id_predicted; aom_prob pred_prob = av1_get_pred_prob_seg_id(segp, xd); aom_write(w, pred_flag, pred_prob); if (!pred_flag) write_segment_id(w, seg, segp, segment_id); } else { write_segment_id(w, seg, segp, segment_id); } } #if CONFIG_SUPERTX if (supertx_enabled) skip = mbmi->skip; else skip = write_skip(cm, xd, segment_id, mi, w); #else skip = write_skip(cm, xd, segment_id, mi, w); #endif // CONFIG_SUPERTX #if CONFIG_DELTA_Q if (cm->delta_q_present_flag) { int super_block_upper_left = ((mi_row & MAX_MIB_MASK) == 0) && ((mi_col & MAX_MIB_MASK) == 0); if ((bsize != BLOCK_LARGEST || skip == 0) && super_block_upper_left) { assert(mbmi->current_q_index > 0); int reduced_delta_qindex = (mbmi->current_q_index - xd->prev_qindex) / cm->delta_q_res; write_delta_qindex(cm, xd, reduced_delta_qindex, w); xd->prev_qindex = mbmi->current_q_index; #if CONFIG_EXT_DELTA_Q if (cm->delta_lf_present_flag) { int reduced_delta_lflevel = (mbmi->current_delta_lf_from_base - xd->prev_delta_lf_from_base) / cm->delta_lf_res; write_delta_lflevel(cm, xd, reduced_delta_lflevel, w); xd->prev_delta_lf_from_base = mbmi->current_delta_lf_from_base; } #endif // CONFIG_EXT_DELTA_Q } } #endif #if CONFIG_SUPERTX if (!supertx_enabled) #endif // CONFIG_SUPERTX if (!segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME)) aom_write(w, is_inter, av1_get_intra_inter_prob(cm, xd)); if (cm->tx_mode == TX_MODE_SELECT && #if CONFIG_CB4X4 && (CONFIG_VAR_TX || CONFIG_RECT_TX) #if CONFIG_RECT_TX bsize > BLOCK_4X4 && #else (bsize >= BLOCK_8X8 || (bsize > BLOCK_4X4 && is_inter)) && #endif // CONFIG_RECT_TX #else bsize >= BLOCK_8X8 && #endif #if CONFIG_SUPERTX !supertx_enabled && #endif // CONFIG_SUPERTX !(is_inter && skip) && !xd->lossless[segment_id]) { #if CONFIG_VAR_TX if (is_inter) { // This implies skip flag is 0. const TX_SIZE max_tx_size = get_vartx_max_txsize(mbmi, bsize); const int bh = tx_size_high_unit[max_tx_size]; const int bw = tx_size_wide_unit[max_tx_size]; const int width = block_size_wide[bsize] >> tx_size_wide_log2[0]; const int height = block_size_high[bsize] >> tx_size_wide_log2[0]; int idx, idy; for (idy = 0; idy < height; idy += bh) for (idx = 0; idx < width; idx += bw) write_tx_size_vartx(cm, xd, mbmi, max_tx_size, height != width, idy, idx, w); } else { set_txfm_ctxs(mbmi->tx_size, xd->n8_w, xd->n8_h, skip, xd); write_selected_tx_size(cm, xd, w); } } else { set_txfm_ctxs(mbmi->tx_size, xd->n8_w, xd->n8_h, skip, xd); #else write_selected_tx_size(cm, xd, w); #endif } if (!is_inter) { if (bsize >= BLOCK_8X8 || unify_bsize) { write_intra_mode(ec_ctx, bsize, mode, w); } else { int idx, idy; const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; for (idy = 0; idy < 2; idy += num_4x4_h) { for (idx = 0; idx < 2; idx += num_4x4_w) { const PREDICTION_MODE b_mode = mi->bmi[idy * 2 + idx].as_mode; write_intra_mode(ec_ctx, bsize, b_mode, w); } } } #if CONFIG_CB4X4 if (is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x, xd->plane[1].subsampling_y)) { write_intra_uv_mode(ec_ctx, mbmi->uv_mode, mode, w); #else // !CONFIG_CB4X4 write_intra_uv_mode(ec_ctx, mbmi->uv_mode, mode, w); #endif // CONFIG_CB4X4 #if CONFIG_CFL if (mbmi->uv_mode == DC_PRED) { write_cfl_alphas(ec_ctx, mbmi->skip, mbmi->cfl_alpha_idx, mbmi->cfl_alpha_signs, w); } #endif #if CONFIG_CB4X4 } #endif #if CONFIG_EXT_INTRA write_intra_angle_info(xd, ec_ctx, w); #endif // CONFIG_EXT_INTRA #if CONFIG_PALETTE if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools) write_palette_mode_info(cm, xd, mi, w); #endif // CONFIG_PALETTE #if CONFIG_FILTER_INTRA if (bsize >= BLOCK_8X8 || unify_bsize) write_filter_intra_mode_info(cm, xd, mbmi, mi_row, mi_col, w); #endif // CONFIG_FILTER_INTRA } else { int16_t mode_ctx; write_ref_frames(cm, xd, w); #if CONFIG_EXT_INTER if (is_compound) mode_ctx = mbmi_ext->compound_mode_context[mbmi->ref_frame[0]]; else #endif // CONFIG_EXT_INTER mode_ctx = av1_mode_context_analyzer(mbmi_ext->mode_context, mbmi->ref_frame, bsize, -1); // If segment skip is not enabled code the mode. if (!segfeature_active(seg, segment_id, SEG_LVL_SKIP)) { if (bsize >= BLOCK_8X8 || unify_bsize) { #if CONFIG_EXT_INTER if (is_inter_compound_mode(mode)) write_inter_compound_mode(cm, w, mode, mode_ctx); else if (is_inter_singleref_mode(mode)) #endif // CONFIG_EXT_INTER write_inter_mode(w, mode, ec_ctx, mode_ctx); #if CONFIG_EXT_INTER if (mode == NEWMV || mode == NEW_NEWMV || have_nearmv_in_inter_mode(mode)) #else if (mode == NEARMV || mode == NEWMV) #endif write_drl_idx(cm, mbmi, mbmi_ext, w); else assert(mbmi->ref_mv_idx == 0); } } #if !CONFIG_DUAL_FILTER && !CONFIG_WARPED_MOTION && !CONFIG_GLOBAL_MOTION write_mb_interp_filter(cpi, xd, w); #endif // !CONFIG_DUAL_FILTER && !CONFIG_WARPED_MOTION if (bsize < BLOCK_8X8 && !unify_bsize) { const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; int idx, idy; for (idy = 0; idy < 2; idy += num_4x4_h) { for (idx = 0; idx < 2; idx += num_4x4_w) { const int j = idy * 2 + idx; const PREDICTION_MODE b_mode = mi->bmi[j].as_mode; #if CONFIG_EXT_INTER if (!is_compound) #endif // CONFIG_EXT_INTER mode_ctx = av1_mode_context_analyzer(mbmi_ext->mode_context, mbmi->ref_frame, bsize, j); #if CONFIG_EXT_INTER if (is_inter_compound_mode(b_mode)) write_inter_compound_mode(cm, w, b_mode, mode_ctx); else if (is_inter_singleref_mode(b_mode)) #endif // CONFIG_EXT_INTER write_inter_mode(w, b_mode, ec_ctx, mode_ctx); #if CONFIG_EXT_INTER if (b_mode == NEWMV || b_mode == NEW_NEWMV) { #else if (b_mode == NEWMV) { #endif // CONFIG_EXT_INTER for (ref = 0; ref < 1 + is_compound; ++ref) { int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame); int nmv_ctx = av1_nmv_ctx(mbmi_ext->ref_mv_count[rf_type], mbmi_ext->ref_mv_stack[rf_type], ref, mbmi->ref_mv_idx); nmv_context *nmvc = &ec_ctx->nmvc[nmv_ctx]; av1_encode_mv(cpi, w, &mi->bmi[j].as_mv[ref].as_mv, #if CONFIG_EXT_INTER &mi->bmi[j].ref_mv[ref].as_mv, #else &mi->bmi[j].pred_mv[ref].as_mv, #endif // CONFIG_EXT_INTER nmvc, allow_hp); } } #if CONFIG_EXT_INTER else if (b_mode == NEAREST_NEWMV || b_mode == NEAR_NEWMV) { int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame); int nmv_ctx = av1_nmv_ctx(mbmi_ext->ref_mv_count[rf_type], mbmi_ext->ref_mv_stack[rf_type], 1, mbmi->ref_mv_idx); nmv_context *nmvc = &ec_ctx->nmvc[nmv_ctx]; av1_encode_mv(cpi, w, &mi->bmi[j].as_mv[1].as_mv, &mi->bmi[j].ref_mv[1].as_mv, nmvc, allow_hp); } else if (b_mode == NEW_NEARESTMV || b_mode == NEW_NEARMV) { int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame); int nmv_ctx = av1_nmv_ctx(mbmi_ext->ref_mv_count[rf_type], mbmi_ext->ref_mv_stack[rf_type], 0, mbmi->ref_mv_idx); nmv_context *nmvc = &ec_ctx->nmvc[nmv_ctx]; av1_encode_mv(cpi, w, &mi->bmi[j].as_mv[0].as_mv, &mi->bmi[j].ref_mv[0].as_mv, nmvc, allow_hp); } #endif // CONFIG_EXT_INTER } } } else { #if CONFIG_EXT_INTER if (mode == NEWMV || mode == NEW_NEWMV) { #else if (mode == NEWMV) { #endif // CONFIG_EXT_INTER int_mv ref_mv; for (ref = 0; ref < 1 + is_compound; ++ref) { int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame); int nmv_ctx = av1_nmv_ctx(mbmi_ext->ref_mv_count[rf_type], mbmi_ext->ref_mv_stack[rf_type], ref, mbmi->ref_mv_idx); nmv_context *nmvc = &ec_ctx->nmvc[nmv_ctx]; ref_mv = mbmi_ext->ref_mvs[mbmi->ref_frame[ref]][0]; av1_encode_mv(cpi, w, &mbmi->mv[ref].as_mv, &ref_mv.as_mv, nmvc, allow_hp); } #if CONFIG_EXT_INTER } else if (mode == NEAREST_NEWMV || mode == NEAR_NEWMV) { int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame); int nmv_ctx = av1_nmv_ctx(mbmi_ext->ref_mv_count[rf_type], mbmi_ext->ref_mv_stack[rf_type], 1, mbmi->ref_mv_idx); nmv_context *nmvc = &ec_ctx->nmvc[nmv_ctx]; av1_encode_mv(cpi, w, &mbmi->mv[1].as_mv, &mbmi_ext->ref_mvs[mbmi->ref_frame[1]][0].as_mv, nmvc, allow_hp); } else if (mode == NEW_NEARESTMV || mode == NEW_NEARMV) { int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame); int nmv_ctx = av1_nmv_ctx(mbmi_ext->ref_mv_count[rf_type], mbmi_ext->ref_mv_stack[rf_type], 0, mbmi->ref_mv_idx); nmv_context *nmvc = &ec_ctx->nmvc[nmv_ctx]; av1_encode_mv(cpi, w, &mbmi->mv[0].as_mv, &mbmi_ext->ref_mvs[mbmi->ref_frame[0]][0].as_mv, nmvc, allow_hp); #endif // CONFIG_EXT_INTER } } #if CONFIG_EXT_INTER && CONFIG_INTERINTRA if (cpi->common.reference_mode != COMPOUND_REFERENCE && #if CONFIG_SUPERTX !supertx_enabled && #endif // CONFIG_SUPERTX cpi->common.allow_interintra_compound && is_interintra_allowed(mbmi)) { const int interintra = mbmi->ref_frame[1] == INTRA_FRAME; const int bsize_group = size_group_lookup[bsize]; aom_write(w, interintra, cm->fc->interintra_prob[bsize_group]); if (interintra) { write_interintra_mode(w, mbmi->interintra_mode, cm->fc->interintra_mode_prob[bsize_group]); if (is_interintra_wedge_used(bsize)) { aom_write(w, mbmi->use_wedge_interintra, cm->fc->wedge_interintra_prob[bsize]); if (mbmi->use_wedge_interintra) { aom_write_literal(w, mbmi->interintra_wedge_index, get_wedge_bits_lookup(bsize)); assert(mbmi->interintra_wedge_sign == 0); } } } } #endif // CONFIG_EXT_INTER && CONFIG_INTERINTRA #if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION #if CONFIG_SUPERTX if (!supertx_enabled) #endif // CONFIG_SUPERTX #if CONFIG_EXT_INTER if (mbmi->ref_frame[1] != INTRA_FRAME) #endif // CONFIG_EXT_INTER write_motion_mode(cm, mi, w); #endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION #if CONFIG_EXT_INTER if (cpi->common.reference_mode != SINGLE_REFERENCE && is_inter_compound_mode(mbmi->mode) #if CONFIG_MOTION_VAR && mbmi->motion_mode == SIMPLE_TRANSLATION #endif // CONFIG_MOTION_VAR && is_any_masked_compound_used(bsize)) { #if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE if (cm->allow_masked_compound) { av1_write_token( w, av1_compound_type_tree, cm->fc->compound_type_prob[bsize], &compound_type_encodings[mbmi->interinter_compound_type]); #if CONFIG_WEDGE if (mbmi->interinter_compound_type == COMPOUND_WEDGE) { aom_write_literal(w, mbmi->wedge_index, get_wedge_bits_lookup(bsize)); aom_write_bit(w, mbmi->wedge_sign); } #endif // CONFIG_WEDGE #if CONFIG_COMPOUND_SEGMENT if (mbmi->interinter_compound_type == COMPOUND_SEG) { aom_write_literal(w, mbmi->mask_type, MAX_SEG_MASK_BITS); } #endif // CONFIG_COMPOUND_SEGMENT } #endif // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE } #endif // CONFIG_EXT_INTER #if CONFIG_DUAL_FILTER || CONFIG_WARPED_MOTION || CONFIG_GLOBAL_MOTION write_mb_interp_filter(cpi, xd, w); #endif // CONFIG_DUAL_FILTE || CONFIG_WARPED_MOTION } #if !CONFIG_TXK_SEL av1_write_tx_type(cm, xd, #if CONFIG_SUPERTX supertx_enabled, #endif w); #endif // !CONFIG_TXK_SEL } static void write_mb_modes_kf(AV1_COMMON *cm, #if CONFIG_DELTA_Q MACROBLOCKD *xd, #else const MACROBLOCKD *xd, #endif // CONFIG_DELTA_Q #if CONFIG_INTRABC const MB_MODE_INFO_EXT *mbmi_ext, #endif // CONFIG_INTRABC const int mi_row, const int mi_col, aom_writer *w) { const struct segmentation *const seg = &cm->seg; struct segmentation_probs *const segp = &cm->fc->seg; const MODE_INFO *const mi = xd->mi[0]; const MODE_INFO *const above_mi = xd->above_mi; const MODE_INFO *const left_mi = xd->left_mi; const MB_MODE_INFO *const mbmi = &mi->mbmi; const BLOCK_SIZE bsize = mbmi->sb_type; #if CONFIG_CB4X4 const int unify_bsize = 1; #else const int unify_bsize = 0; #endif (void)mi_row; (void)mi_col; #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif if (seg->update_map) write_segment_id(w, seg, segp, mbmi->segment_id); #if CONFIG_DELTA_Q const int skip = write_skip(cm, xd, mbmi->segment_id, mi, w); if (cm->delta_q_present_flag) { int super_block_upper_left = ((mi_row & MAX_MIB_MASK) == 0) && ((mi_col & MAX_MIB_MASK) == 0); if ((bsize != BLOCK_LARGEST || skip == 0) && super_block_upper_left) { assert(mbmi->current_q_index > 0); int reduced_delta_qindex = (mbmi->current_q_index - xd->prev_qindex) / cm->delta_q_res; write_delta_qindex(cm, xd, reduced_delta_qindex, w); xd->prev_qindex = mbmi->current_q_index; #if CONFIG_EXT_DELTA_Q if (cm->delta_lf_present_flag) { int reduced_delta_lflevel = (mbmi->current_delta_lf_from_base - xd->prev_delta_lf_from_base) / cm->delta_lf_res; write_delta_lflevel(cm, xd, reduced_delta_lflevel, w); xd->prev_delta_lf_from_base = mbmi->current_delta_lf_from_base; } #endif // CONFIG_EXT_DELTA_Q } } #else write_skip(cm, xd, mbmi->segment_id, mi, w); #endif if (cm->tx_mode == TX_MODE_SELECT && #if CONFIG_CB4X4 && (CONFIG_VAR_TX || CONFIG_RECT_TX) #if CONFIG_RECT_TX bsize > BLOCK_4X4 && #else bsize >= BLOCK_8X8 && #endif // CONFIG_RECT_TX #else bsize >= BLOCK_8X8 && #endif !xd->lossless[mbmi->segment_id]) write_selected_tx_size(cm, xd, w); #if CONFIG_INTRABC if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools) { int use_intrabc = is_intrabc_block(mbmi); aom_write(w, use_intrabc, ec_ctx->intrabc_prob); if (use_intrabc) { assert(mbmi->mode == DC_PRED); assert(mbmi->uv_mode == DC_PRED); int_mv dv_ref = mbmi_ext->ref_mvs[INTRA_FRAME][0]; av1_encode_dv(w, &mbmi->mv[0].as_mv, &dv_ref.as_mv, &ec_ctx->ndvc); #if CONFIG_EXT_TX && !CONFIG_TXK_SEL av1_write_tx_type(cm, xd, #if CONFIG_SUPERTX 0, #endif w); #endif // CONFIG_EXT_TX && !CONFIG_TXK_SEL return; } } #endif // CONFIG_INTRABC if (bsize >= BLOCK_8X8 || unify_bsize) { write_intra_mode_kf(cm, ec_ctx, mi, above_mi, left_mi, 0, mbmi->mode, w); } else { const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; int idx, idy; for (idy = 0; idy < 2; idy += num_4x4_h) { for (idx = 0; idx < 2; idx += num_4x4_w) { const int block = idy * 2 + idx; write_intra_mode_kf(cm, ec_ctx, mi, above_mi, left_mi, block, mi->bmi[block].as_mode, w); } } } #if CONFIG_CB4X4 if (is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x, xd->plane[1].subsampling_y)) { write_intra_uv_mode(ec_ctx, mbmi->uv_mode, mbmi->mode, w); #else // !CONFIG_CB4X4 write_intra_uv_mode(ec_ctx, mbmi->uv_mode, mbmi->mode, w); #endif // CONFIG_CB4X4 #if CONFIG_CFL if (mbmi->uv_mode == DC_PRED) { write_cfl_alphas(ec_ctx, mbmi->skip, mbmi->cfl_alpha_idx, mbmi->cfl_alpha_signs, w); } #endif #if CONFIG_CB4X4 } #endif #if CONFIG_EXT_INTRA write_intra_angle_info(xd, ec_ctx, w); #endif // CONFIG_EXT_INTRA #if CONFIG_PALETTE if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools) write_palette_mode_info(cm, xd, mi, w); #endif // CONFIG_PALETTE #if CONFIG_FILTER_INTRA if (bsize >= BLOCK_8X8 || unify_bsize) write_filter_intra_mode_info(cm, xd, mbmi, mi_row, mi_col, w); #endif // CONFIG_FILTER_INTRA #if !CONFIG_TXK_SEL av1_write_tx_type(cm, xd, #if CONFIG_SUPERTX 0, #endif w); #endif // !CONFIG_TXK_SEL } #if CONFIG_SUPERTX #define write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, \ mi_row, mi_col) \ write_modes_b(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col) #else #define write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, \ mi_row, mi_col) \ write_modes_b(cpi, tile, w, tok, tok_end, mi_row, mi_col) #endif // CONFIG_SUPERTX #if CONFIG_RD_DEBUG static void dump_mode_info(MODE_INFO *mi) { printf("\nmi->mbmi.mi_row == %d\n", mi->mbmi.mi_row); printf("&& mi->mbmi.mi_col == %d\n", mi->mbmi.mi_col); printf("&& mi->mbmi.sb_type == %d\n", mi->mbmi.sb_type); printf("&& mi->mbmi.tx_size == %d\n", mi->mbmi.tx_size); if (mi->mbmi.sb_type >= BLOCK_8X8) { printf("&& mi->mbmi.mode == %d\n", mi->mbmi.mode); } else { printf("&& mi->bmi[0].as_mode == %d\n", mi->bmi[0].as_mode); } } static int rd_token_stats_mismatch(RD_STATS *rd_stats, TOKEN_STATS *token_stats, int plane) { if (rd_stats->txb_coeff_cost[plane] != token_stats->cost) { #if CONFIG_VAR_TX int r, c; #endif printf("\nplane %d rd_stats->txb_coeff_cost %d token_stats->cost %d\n", plane, rd_stats->txb_coeff_cost[plane], token_stats->cost); #if CONFIG_VAR_TX printf("rd txb_coeff_cost_map\n"); for (r = 0; r < TXB_COEFF_COST_MAP_SIZE; ++r) { for (c = 0; c < TXB_COEFF_COST_MAP_SIZE; ++c) { printf("%d ", rd_stats->txb_coeff_cost_map[plane][r][c]); } printf("\n"); } printf("pack txb_coeff_cost_map\n"); for (r = 0; r < TXB_COEFF_COST_MAP_SIZE; ++r) { for (c = 0; c < TXB_COEFF_COST_MAP_SIZE; ++c) { printf("%d ", token_stats->txb_coeff_cost_map[r][c]); } printf("\n"); } #endif return 1; } return 0; } #endif static void write_mbmi_b(AV1_COMP *cpi, const TileInfo *const tile, aom_writer *w, #if CONFIG_SUPERTX int supertx_enabled, #endif int mi_row, int mi_col) { AV1_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &cpi->td.mb.e_mbd; MODE_INFO *m; int bh, bw; xd->mi = cm->mi_grid_visible + (mi_row * cm->mi_stride + mi_col); m = xd->mi[0]; assert(m->mbmi.sb_type <= cm->sb_size); bh = mi_size_high[m->mbmi.sb_type]; bw = mi_size_wide[m->mbmi.sb_type]; cpi->td.mb.mbmi_ext = cpi->mbmi_ext_base + (mi_row * cm->mi_cols + mi_col); set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, #if CONFIG_DEPENDENT_HORZTILES cm->dependent_horz_tiles, #endif // CONFIG_DEPENDENT_HORZTILES cm->mi_rows, cm->mi_cols); if (frame_is_intra_only(cm)) { write_mb_modes_kf(cm, xd, #if CONFIG_INTRABC cpi->td.mb.mbmi_ext, #endif // CONFIG_INTRABC mi_row, mi_col, w); } else { #if CONFIG_VAR_TX xd->above_txfm_context = cm->above_txfm_context + (mi_col << TX_UNIT_WIDE_LOG2); xd->left_txfm_context = xd->left_txfm_context_buffer + ((mi_row & MAX_MIB_MASK) << TX_UNIT_HIGH_LOG2); #endif #if CONFIG_DUAL_FILTER // has_subpel_mv_component needs the ref frame buffers set up to look // up if they are scaled. has_subpel_mv_component is in turn needed by // write_switchable_interp_filter, which is called by pack_inter_mode_mvs. set_ref_ptrs(cm, xd, m->mbmi.ref_frame[0], m->mbmi.ref_frame[1]); #endif // CONFIG_DUAL_FILTER #if 0 // NOTE(zoeliu): For debug if (cm->current_video_frame == FRAME_TO_CHECK && cm->show_frame == 1) { const PREDICTION_MODE mode = m->mbmi.mode; const int segment_id = m->mbmi.segment_id; const BLOCK_SIZE bsize = m->mbmi.sb_type; // For sub8x8, simply dump out the first sub8x8 block info const PREDICTION_MODE b_mode = (bsize < BLOCK_8X8) ? m->bmi[0].as_mode : -1; const int mv_x = (bsize < BLOCK_8X8) ? m->bmi[0].as_mv[0].as_mv.row : m->mbmi.mv[0].as_mv.row; const int mv_y = (bsize < BLOCK_8X8) ? m->bmi[0].as_mv[0].as_mv.col : m->mbmi.mv[0].as_mv.col; printf("Before pack_inter_mode_mvs(): " "Frame=%d, (mi_row,mi_col)=(%d,%d), " "mode=%d, segment_id=%d, bsize=%d, b_mode=%d, " "mv[0]=(%d, %d), ref[0]=%d, ref[1]=%d\n", cm->current_video_frame, mi_row, mi_col, mode, segment_id, bsize, b_mode, mv_x, mv_y, m->mbmi.ref_frame[0], m->mbmi.ref_frame[1]); } #endif // 0 pack_inter_mode_mvs(cpi, mi_row, mi_col, #if CONFIG_SUPERTX supertx_enabled, #endif w); } } static void write_tokens_b(AV1_COMP *cpi, const TileInfo *const tile, aom_writer *w, const TOKENEXTRA **tok, const TOKENEXTRA *const tok_end, int mi_row, int mi_col) { AV1_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &cpi->td.mb.e_mbd; MODE_INFO *const m = xd->mi[0]; MB_MODE_INFO *const mbmi = &m->mbmi; int plane; int bh, bw; #if CONFIG_PVQ || CONFIG_LV_MAP MACROBLOCK *const x = &cpi->td.mb; (void)tok; (void)tok_end; #endif xd->mi = cm->mi_grid_visible + (mi_row * cm->mi_stride + mi_col); assert(mbmi->sb_type <= cm->sb_size); bh = mi_size_high[mbmi->sb_type]; bw = mi_size_wide[mbmi->sb_type]; cpi->td.mb.mbmi_ext = cpi->mbmi_ext_base + (mi_row * cm->mi_cols + mi_col); set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, #if CONFIG_DEPENDENT_HORZTILES cm->dependent_horz_tiles, #endif // CONFIG_DEPENDENT_HORZTILES cm->mi_rows, cm->mi_cols); #if CONFIG_PALETTE for (plane = 0; plane <= 1; ++plane) { const uint8_t palette_size_plane = mbmi->palette_mode_info.palette_size[plane]; if (palette_size_plane > 0) { #if CONFIG_INTRABC assert(mbmi->use_intrabc == 0); #endif int rows, cols; assert(mbmi->sb_type >= BLOCK_8X8); av1_get_block_dimensions(mbmi->sb_type, plane, xd, NULL, NULL, &rows, &cols); assert(*tok < tok_end); pack_palette_tokens(w, tok, palette_size_plane, rows * cols - 1); assert(*tok < tok_end + mbmi->skip); } } #endif // CONFIG_PALETTE #if CONFIG_COEF_INTERLEAVE if (!mbmi->skip) { const struct macroblockd_plane *const pd_y = &xd->plane[0]; const struct macroblockd_plane *const pd_c = &xd->plane[1]; const TX_SIZE tx_log2_y = mbmi->tx_size; const TX_SIZE tx_log2_c = get_uv_tx_size(mbmi, pd_c); const int tx_sz_y = (1 << tx_log2_y); const int tx_sz_c = (1 << tx_log2_c); const BLOCK_SIZE plane_bsize_y = get_plane_block_size(AOMMAX(mbmi->sb_type, 3), pd_y); const BLOCK_SIZE plane_bsize_c = get_plane_block_size(AOMMAX(mbmi->sb_type, 3), pd_c); const int num_4x4_w_y = num_4x4_blocks_wide_lookup[plane_bsize_y]; const int num_4x4_w_c = num_4x4_blocks_wide_lookup[plane_bsize_c]; const int num_4x4_h_y = num_4x4_blocks_high_lookup[plane_bsize_y]; const int num_4x4_h_c = num_4x4_blocks_high_lookup[plane_bsize_c]; const int max_4x4_w_y = get_max_4x4_size(num_4x4_w_y, xd->mb_to_right_edge, pd_y->subsampling_x); const int max_4x4_h_y = get_max_4x4_size(num_4x4_h_y, xd->mb_to_bottom_edge, pd_y->subsampling_y); const int max_4x4_w_c = get_max_4x4_size(num_4x4_w_c, xd->mb_to_right_edge, pd_c->subsampling_x); const int max_4x4_h_c = get_max_4x4_size(num_4x4_h_c, xd->mb_to_bottom_edge, pd_c->subsampling_y); // The max_4x4_w/h may be smaller than tx_sz under some corner cases, // i.e. when the SB is splitted by tile boundaries. const int tu_num_w_y = (max_4x4_w_y + tx_sz_y - 1) / tx_sz_y; const int tu_num_h_y = (max_4x4_h_y + tx_sz_y - 1) / tx_sz_y; const int tu_num_w_c = (max_4x4_w_c + tx_sz_c - 1) / tx_sz_c; const int tu_num_h_c = (max_4x4_h_c + tx_sz_c - 1) / tx_sz_c; const int tu_num_y = tu_num_w_y * tu_num_h_y; const int tu_num_c = tu_num_w_c * tu_num_h_c; int tu_idx_y = 0, tu_idx_c = 0; TOKEN_STATS token_stats; init_token_stats(&token_stats); assert(*tok < tok_end); while (tu_idx_y < tu_num_y) { pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx_log2_y, &token_stats); assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; tu_idx_y++; if (tu_idx_c < tu_num_c) { pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx_log2_c, &token_stats); assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx_log2_c, &token_stats); assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; tu_idx_c++; } } // In 422 case, it's possilbe that Chroma has more TUs than Luma while (tu_idx_c < tu_num_c) { pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx_log2_c, &token_stats); assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx_log2_c, &token_stats); assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; tu_idx_c++; } } #else // CONFIG_COEF_INTERLEAVE if (!mbmi->skip) { #if !CONFIG_PVQ && !CONFIG_LV_MAP assert(*tok < tok_end); #endif for (plane = 0; plane < MAX_MB_PLANE; ++plane) { #if CONFIG_CB4X4 if (!is_chroma_reference(mi_row, mi_col, mbmi->sb_type, xd->plane[plane].subsampling_x, xd->plane[plane].subsampling_y)) { (*tok)++; continue; } #endif #if CONFIG_VAR_TX const struct macroblockd_plane *const pd = &xd->plane[plane]; BLOCK_SIZE bsize = mbmi->sb_type; #if CONFIG_CB4X4 #if CONFIG_CHROMA_2X2 const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd); #else const BLOCK_SIZE plane_bsize = AOMMAX(BLOCK_4X4, get_plane_block_size(bsize, pd)); #endif #else const BLOCK_SIZE plane_bsize = get_plane_block_size(AOMMAX(bsize, BLOCK_8X8), pd); #endif const int num_4x4_w = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; const int num_4x4_h = block_size_high[plane_bsize] >> tx_size_wide_log2[0]; int row, col; TOKEN_STATS token_stats; init_token_stats(&token_stats); if (is_inter_block(mbmi)) { const TX_SIZE max_tx_size = get_vartx_max_txsize(mbmi, plane_bsize); int block = 0; const int step = tx_size_wide_unit[max_tx_size] * tx_size_high_unit[max_tx_size]; const int bkw = tx_size_wide_unit[max_tx_size]; const int bkh = tx_size_high_unit[max_tx_size]; for (row = 0; row < num_4x4_h; row += bkh) { for (col = 0; col < num_4x4_w; col += bkw) { pack_txb_tokens(w, #if CONFIG_LV_MAP cm, #endif tok, tok_end, #if CONFIG_PVQ || CONFIG_LV_MAP x, #endif xd, mbmi, plane, plane_bsize, cm->bit_depth, block, row, col, max_tx_size, &token_stats); block += step; } } #if CONFIG_RD_DEBUG if (mbmi->sb_type >= BLOCK_8X8 && rd_token_stats_mismatch(&mbmi->rd_stats, &token_stats, plane)) { dump_mode_info(m); assert(0); } #endif // CONFIG_RD_DEBUG } else { #if CONFIG_LV_MAP av1_write_coeffs_mb(cm, x, w, plane); #else TX_SIZE tx = get_tx_size(plane, xd); const int bkw = tx_size_wide_unit[tx]; const int bkh = tx_size_high_unit[tx]; for (row = 0; row < num_4x4_h; row += bkh) { for (col = 0; col < num_4x4_w; col += bkw) { #if !CONFIG_PVQ pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx, &token_stats); #else pack_pvq_tokens(w, x, xd, plane, bsize, tx); #endif } } #endif // CONFIG_LV_MAP } #else TX_SIZE tx = get_tx_size(plane, xd); TOKEN_STATS token_stats; #if !CONFIG_PVQ init_token_stats(&token_stats); #if CONFIG_LV_MAP (void)tx; av1_write_coeffs_mb(cm, x, w, plane); #else // CONFIG_LV_MAP pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx, &token_stats); #endif // CONFIG_LV_MAP #else (void)token_stats; pack_pvq_tokens(w, x, xd, plane, mbmi->sb_type, tx); #endif #if CONFIG_RD_DEBUG if (is_inter_block(mbmi) && mbmi->sb_type >= BLOCK_8X8 && rd_token_stats_mismatch(&mbmi->rd_stats, &token_stats, plane)) { dump_mode_info(m); assert(0); } #endif // CONFIG_RD_DEBUG #endif // CONFIG_VAR_TX #if !CONFIG_PVQ && !CONFIG_LV_MAP assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; #endif } } #endif // CONFIG_COEF_INTERLEAVE } #if CONFIG_MOTION_VAR && CONFIG_NCOBMC static void write_tokens_sb(AV1_COMP *cpi, const TileInfo *const tile, aom_writer *w, const TOKENEXTRA **tok, const TOKENEXTRA *const tok_end, int mi_row, int mi_col, BLOCK_SIZE bsize) { const AV1_COMMON *const cm = &cpi->common; const int hbs = mi_size_wide[bsize] / 2; PARTITION_TYPE partition; BLOCK_SIZE subsize; #if CONFIG_CB4X4 const int unify_bsize = 1; #else const int unify_bsize = 0; #endif if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; partition = get_partition(cm, mi_row, mi_col, bsize); subsize = get_subsize(bsize, partition); if (subsize < BLOCK_8X8 && !unify_bsize) { write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); } else { switch (partition) { case PARTITION_NONE: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); break; case PARTITION_HORZ: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); if (mi_row + hbs < cm->mi_rows) write_tokens_b(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col); break; case PARTITION_VERT: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); if (mi_col + hbs < cm->mi_cols) write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col + hbs); break; case PARTITION_SPLIT: write_tokens_sb(cpi, tile, w, tok, tok_end, mi_row, mi_col, subsize); write_tokens_sb(cpi, tile, w, tok, tok_end, mi_row, mi_col + hbs, subsize); write_tokens_sb(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col, subsize); write_tokens_sb(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col + hbs, subsize); break; #if CONFIG_EXT_PARTITION_TYPES case PARTITION_HORZ_A: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col + hbs); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col); break; case PARTITION_HORZ_B: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col + hbs); break; case PARTITION_VERT_A: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col + hbs); break; case PARTITION_VERT_B: write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col + hbs); write_tokens_b(cpi, tile, w, tok, tok_end, mi_row + hbs, mi_col + hbs); break; #endif // CONFIG_EXT_PARTITION_TYPES default: assert(0); } } } #endif static void write_modes_b(AV1_COMP *cpi, const TileInfo *const tile, aom_writer *w, const TOKENEXTRA **tok, const TOKENEXTRA *const tok_end, #if CONFIG_SUPERTX int supertx_enabled, #endif int mi_row, int mi_col) { write_mbmi_b(cpi, tile, w, #if CONFIG_SUPERTX supertx_enabled, #endif mi_row, mi_col); #if CONFIG_MOTION_VAR && CONFIG_NCOBMC (void)tok; (void)tok_end; #else #if !CONFIG_PVQ && CONFIG_SUPERTX if (!supertx_enabled) #endif write_tokens_b(cpi, tile, w, tok, tok_end, mi_row, mi_col); #endif } static void write_partition(const AV1_COMMON *const cm, const MACROBLOCKD *const xd, int hbs, int mi_row, int mi_col, PARTITION_TYPE p, BLOCK_SIZE bsize, aom_writer *w) { const int has_rows = (mi_row + hbs) < cm->mi_rows; const int has_cols = (mi_col + hbs) < cm->mi_cols; const int is_partition_point = bsize >= BLOCK_8X8; const int ctx = is_partition_point ? partition_plane_context(xd, mi_row, mi_col, #if CONFIG_UNPOISON_PARTITION_CTX has_rows, has_cols, #endif bsize) : 0; #if CONFIG_UNPOISON_PARTITION_CTX const aom_prob *const probs = ctx < PARTITION_CONTEXTS ? cm->fc->partition_prob[ctx] : NULL; #else const aom_prob *const probs = cm->fc->partition_prob[ctx]; #endif #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; (void)cm; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif if (!is_partition_point) return; if (has_rows && has_cols) { #if CONFIG_EXT_PARTITION_TYPES if (bsize <= BLOCK_8X8) aom_write_symbol(w, p, ec_ctx->partition_cdf[ctx], PARTITION_TYPES); else aom_write_symbol(w, p, ec_ctx->partition_cdf[ctx], EXT_PARTITION_TYPES); #else aom_write_symbol(w, p, ec_ctx->partition_cdf[ctx], PARTITION_TYPES); #endif // CONFIG_EXT_PARTITION_TYPES } else if (!has_rows && has_cols) { assert(p == PARTITION_SPLIT || p == PARTITION_HORZ); aom_write(w, p == PARTITION_SPLIT, probs[1]); } else if (has_rows && !has_cols) { assert(p == PARTITION_SPLIT || p == PARTITION_VERT); aom_write(w, p == PARTITION_SPLIT, probs[2]); } else { assert(p == PARTITION_SPLIT); } } #if CONFIG_SUPERTX #define write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, \ mi_row, mi_col, bsize) \ write_modes_sb(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col, \ bsize) #else #define write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, \ mi_row, mi_col, bsize) \ write_modes_sb(cpi, tile, w, tok, tok_end, mi_row, mi_col, bsize) #endif // CONFIG_SUPERTX static void write_modes_sb(AV1_COMP *const cpi, const TileInfo *const tile, aom_writer *const w, const TOKENEXTRA **tok, const TOKENEXTRA *const tok_end, #if CONFIG_SUPERTX int supertx_enabled, #endif int mi_row, int mi_col, BLOCK_SIZE bsize) { const AV1_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &cpi->td.mb.e_mbd; const int hbs = mi_size_wide[bsize] / 2; const PARTITION_TYPE partition = get_partition(cm, mi_row, mi_col, bsize); const BLOCK_SIZE subsize = get_subsize(bsize, partition); #if CONFIG_CB4X4 const int unify_bsize = 1; #else const int unify_bsize = 0; #endif #if CONFIG_SUPERTX const int mi_offset = mi_row * cm->mi_stride + mi_col; MB_MODE_INFO *mbmi; const int pack_token = !supertx_enabled; TX_SIZE supertx_size; int plane; #endif if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; write_partition(cm, xd, hbs, mi_row, mi_col, partition, bsize, w); #if CONFIG_SUPERTX mbmi = &cm->mi_grid_visible[mi_offset]->mbmi; xd->mi = cm->mi_grid_visible + mi_offset; set_mi_row_col(xd, tile, mi_row, mi_size_high[bsize], mi_col, mi_size_wide[bsize], #if CONFIG_DEPENDENT_HORZTILES cm->dependent_horz_tiles, #endif // CONFIG_DEPENDENT_HORZTILES cm->mi_rows, cm->mi_cols); if (!supertx_enabled && !frame_is_intra_only(cm) && partition != PARTITION_NONE && bsize <= MAX_SUPERTX_BLOCK_SIZE && !xd->lossless[0]) { aom_prob prob; supertx_size = max_txsize_lookup[bsize]; prob = cm->fc->supertx_prob[partition_supertx_context_lookup[partition]] [supertx_size]; supertx_enabled = (xd->mi[0]->mbmi.tx_size == supertx_size); aom_write(w, supertx_enabled, prob); } #endif // CONFIG_SUPERTX if (subsize < BLOCK_8X8 && !unify_bsize) { write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); } else { switch (partition) { case PARTITION_NONE: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); break; case PARTITION_HORZ: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); if (mi_row + hbs < cm->mi_rows) write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col); break; case PARTITION_VERT: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); if (mi_col + hbs < cm->mi_cols) write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col + hbs); break; case PARTITION_SPLIT: write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col, subsize); write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col + hbs, subsize); write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col, subsize); write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col + hbs, subsize); break; #if CONFIG_EXT_PARTITION_TYPES case PARTITION_HORZ_A: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col + hbs); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col); break; case PARTITION_HORZ_B: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col + hbs); break; case PARTITION_VERT_A: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col + hbs); break; case PARTITION_VERT_B: write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row, mi_col + hbs); write_modes_b_wrapper(cpi, tile, w, tok, tok_end, supertx_enabled, mi_row + hbs, mi_col + hbs); break; #endif // CONFIG_EXT_PARTITION_TYPES default: assert(0); } } #if CONFIG_SUPERTX if (partition != PARTITION_NONE && supertx_enabled && pack_token) { int skip; const int bsw = mi_size_wide[bsize]; const int bsh = mi_size_high[bsize]; xd->mi = cm->mi_grid_visible + mi_offset; supertx_size = mbmi->tx_size; set_mi_row_col(xd, tile, mi_row, bsh, mi_col, bsw, #if CONFIG_DEPENDENT_HORZTILES cm->dependent_horz_tiles, #endif // CONFIG_DEPENDENT_HORZTILES cm->mi_rows, cm->mi_cols); assert(IMPLIES(!cm->seg.enabled, mbmi->segment_id_supertx == 0)); assert(mbmi->segment_id_supertx < MAX_SEGMENTS); skip = write_skip(cm, xd, mbmi->segment_id_supertx, xd->mi[0], w); #if CONFIG_EXT_TX if (get_ext_tx_types(supertx_size, bsize, 1, cm->reduced_tx_set_used) > 1 && !skip) { const int eset = get_ext_tx_set(supertx_size, bsize, 1, cm->reduced_tx_set_used); if (eset > 0) { #if CONFIG_EC_ADAPT FRAME_CONTEXT *ec_ctx = xd->tile_ctx; #else FRAME_CONTEXT *ec_ctx = cm->fc; #endif aom_write_symbol(w, av1_ext_tx_inter_ind[eset][mbmi->tx_type], ec_ctx->inter_ext_tx_cdf[eset][supertx_size], ext_tx_cnt_inter[eset]); } } #else if (supertx_size < TX_32X32 && !skip) { av1_write_token(w, av1_ext_tx_tree, cm->fc->inter_ext_tx_prob[supertx_size], &ext_tx_encodings[mbmi->tx_type]); } #endif // CONFIG_EXT_TX if (!skip) { assert(*tok < tok_end); for (plane = 0; plane < MAX_MB_PLANE; ++plane) { const struct macroblockd_plane *const pd = &xd->plane[plane]; const int mbmi_txb_size = txsize_to_bsize[mbmi->tx_size]; const BLOCK_SIZE plane_bsize = get_plane_block_size(mbmi_txb_size, pd); const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane); const int max_blocks_high = max_block_high(xd, plane_bsize, plane); int row, col; TX_SIZE tx = get_tx_size(plane, xd); BLOCK_SIZE txb_size = txsize_to_bsize[tx]; const int stepr = tx_size_high_unit[txb_size]; const int stepc = tx_size_wide_unit[txb_size]; TOKEN_STATS token_stats; token_stats.cost = 0; for (row = 0; row < max_blocks_high; row += stepr) for (col = 0; col < max_blocks_wide; col += stepc) pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx, &token_stats); assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN); (*tok)++; } } #if CONFIG_VAR_TX xd->above_txfm_context = cm->above_txfm_context + mi_col; xd->left_txfm_context = xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); set_txfm_ctxs(xd->mi[0]->mbmi.tx_size, bsw, bsh, skip, xd); #endif } #endif // CONFIG_SUPERTX // update partition context #if CONFIG_EXT_PARTITION_TYPES update_ext_partition_context(xd, mi_row, mi_col, subsize, bsize, partition); #else if (bsize >= BLOCK_8X8 && (bsize == BLOCK_8X8 || partition != PARTITION_SPLIT)) update_partition_context(xd, mi_row, mi_col, subsize, bsize); #endif // CONFIG_EXT_PARTITION_TYPES #if CONFIG_CDEF if (bsize == cm->sb_size && !sb_all_skip(cm, mi_row, mi_col) && cm->cdef_bits != 0) { aom_write_literal(w, cm->mi_grid_visible[mi_row * cm->mi_stride + mi_col] ->mbmi.cdef_strength, cm->cdef_bits); } #endif } static void write_modes(AV1_COMP *const cpi, const TileInfo *const tile, aom_writer *const w, const TOKENEXTRA **tok, const TOKENEXTRA *const tok_end) { AV1_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &cpi->td.mb.e_mbd; const int mi_row_start = tile->mi_row_start; const int mi_row_end = tile->mi_row_end; const int mi_col_start = tile->mi_col_start; const int mi_col_end = tile->mi_col_end; int mi_row, mi_col; #if CONFIG_DEPENDENT_HORZTILES #if CONFIG_TILE_GROUPS if (!cm->dependent_horz_tiles || mi_row_start == 0 || tile->tg_horz_boundary) { #else if (!cm->dependent_horz_tiles || mi_row_start == 0) { #endif av1_zero_above_context(cm, mi_col_start, mi_col_end); } #else av1_zero_above_context(cm, mi_col_start, mi_col_end); #endif #if CONFIG_PVQ assert(cpi->td.mb.pvq_q->curr_pos == 0); #endif #if CONFIG_DELTA_Q if (cpi->common.delta_q_present_flag) { xd->prev_qindex = cpi->common.base_qindex; #if CONFIG_EXT_DELTA_Q if (cpi->common.delta_lf_present_flag) { xd->prev_delta_lf_from_base = 0; } #endif // CONFIG_EXT_DELTA_Q } #endif for (mi_row = mi_row_start; mi_row < mi_row_end; mi_row += cm->mib_size) { av1_zero_left_context(xd); for (mi_col = mi_col_start; mi_col < mi_col_end; mi_col += cm->mib_size) { write_modes_sb_wrapper(cpi, tile, w, tok, tok_end, 0, mi_row, mi_col, cm->sb_size); #if CONFIG_MOTION_VAR && CONFIG_NCOBMC write_tokens_sb(cpi, tile, w, tok, tok_end, mi_row, mi_col, cm->sb_size); #endif } } #if CONFIG_PVQ // Check that the number of PVQ blocks encoded and written to the bitstream // are the same assert(cpi->td.mb.pvq_q->curr_pos == cpi->td.mb.pvq_q->last_pos); // Reset curr_pos in case we repack the bitstream cpi->td.mb.pvq_q->curr_pos = 0; #endif } #if !CONFIG_LV_MAP #if !CONFIG_PVQ && !CONFIG_EC_ADAPT static void build_tree_distribution(AV1_COMP *cpi, TX_SIZE tx_size, av1_coeff_stats *coef_branch_ct, av1_coeff_probs_model *coef_probs) { av1_coeff_count *coef_counts = cpi->td.rd_counts.coef_counts[tx_size]; unsigned int(*eob_branch_ct)[REF_TYPES][COEF_BANDS][COEFF_CONTEXTS] = cpi->common.counts.eob_branch[tx_size]; int i, j, k, l, m; #if CONFIG_RECT_TX assert(!is_rect_tx(tx_size)); #endif // CONFIG_RECT_TX for (i = 0; i < PLANE_TYPES; ++i) { for (j = 0; j < REF_TYPES; ++j) { for (k = 0; k < COEF_BANDS; ++k) { for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) { av1_tree_probs_from_distribution(av1_coef_tree, coef_branch_ct[i][j][k][l], coef_counts[i][j][k][l]); coef_branch_ct[i][j][k][l][0][1] = eob_branch_ct[i][j][k][l] - coef_branch_ct[i][j][k][l][0][0]; for (m = 0; m < UNCONSTRAINED_NODES; ++m) coef_probs[i][j][k][l][m] = get_binary_prob(coef_branch_ct[i][j][k][l][m][0], coef_branch_ct[i][j][k][l][m][1]); } } } } } #if !CONFIG_EC_ADAPT static void update_coef_probs_common(aom_writer *const bc, AV1_COMP *cpi, TX_SIZE tx_size, av1_coeff_stats *frame_branch_ct, av1_coeff_probs_model *new_coef_probs) { av1_coeff_probs_model *old_coef_probs = cpi->common.fc->coef_probs[tx_size]; const aom_prob upd = DIFF_UPDATE_PROB; #if CONFIG_EC_ADAPT const int entropy_nodes_update = UNCONSTRAINED_NODES - 1; #else const int entropy_nodes_update = UNCONSTRAINED_NODES; #endif int i, j, k, l, t; int stepsize = cpi->sf.coeff_prob_appx_step; #if CONFIG_TILE_GROUPS const int probwt = cpi->common.num_tg; #else const int probwt = 1; #endif #if CONFIG_RECT_TX assert(!is_rect_tx(tx_size)); #endif // CONFIG_RECT_TX switch (cpi->sf.use_fast_coef_updates) { case TWO_LOOP: { /* dry run to see if there is any update at all needed */ int savings = 0; int update[2] = { 0, 0 }; for (i = 0; i < PLANE_TYPES; ++i) { for (j = 0; j < REF_TYPES; ++j) { for (k = 0; k < COEF_BANDS; ++k) { for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) { for (t = 0; t < entropy_nodes_update; ++t) { aom_prob newp = new_coef_probs[i][j][k][l][t]; const aom_prob oldp = old_coef_probs[i][j][k][l][t]; int s; int u = 0; if (t == PIVOT_NODE) s = av1_prob_diff_update_savings_search_model( frame_branch_ct[i][j][k][l][0], oldp, &newp, upd, stepsize, probwt); else s = av1_prob_diff_update_savings_search( frame_branch_ct[i][j][k][l][t], oldp, &newp, upd, probwt); if (s > 0 && newp != oldp) u = 1; if (u) savings += s - (int)(av1_cost_zero(upd)); else savings -= (int)(av1_cost_zero(upd)); update[u]++; } } } } } /* Is coef updated at all */ if (update[1] == 0 || savings < 0) { aom_write_bit(bc, 0); return; } aom_write_bit(bc, 1); for (i = 0; i < PLANE_TYPES; ++i) { for (j = 0; j < REF_TYPES; ++j) { for (k = 0; k < COEF_BANDS; ++k) { for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) { // calc probs and branch cts for this frame only for (t = 0; t < entropy_nodes_update; ++t) { aom_prob newp = new_coef_probs[i][j][k][l][t]; aom_prob *oldp = old_coef_probs[i][j][k][l] + t; int s; int u = 0; if (t == PIVOT_NODE) s = av1_prob_diff_update_savings_search_model( frame_branch_ct[i][j][k][l][0], *oldp, &newp, upd, stepsize, probwt); else s = av1_prob_diff_update_savings_search( frame_branch_ct[i][j][k][l][t], *oldp, &newp, upd, probwt); if (s > 0 && newp != *oldp) u = 1; aom_write(bc, u, upd); if (u) { /* send/use new probability */ av1_write_prob_diff_update(bc, newp, *oldp); *oldp = newp; } } } } } } return; } case ONE_LOOP_REDUCED: { int updates = 0; int noupdates_before_first = 0; for (i = 0; i < PLANE_TYPES; ++i) { for (j = 0; j < REF_TYPES; ++j) { for (k = 0; k < COEF_BANDS; ++k) { for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) { // calc probs and branch cts for this frame only for (t = 0; t < entropy_nodes_update; ++t) { aom_prob newp = new_coef_probs[i][j][k][l][t]; aom_prob *oldp = old_coef_probs[i][j][k][l] + t; int s; int u = 0; if (t == PIVOT_NODE) { s = av1_prob_diff_update_savings_search_model( frame_branch_ct[i][j][k][l][0], *oldp, &newp, upd, stepsize, probwt); } else { s = av1_prob_diff_update_savings_search( frame_branch_ct[i][j][k][l][t], *oldp, &newp, upd, probwt); } if (s > 0 && newp != *oldp) u = 1; updates += u; if (u == 0 && updates == 0) { noupdates_before_first++; continue; } if (u == 1 && updates == 1) { int v; // first update aom_write_bit(bc, 1); for (v = 0; v < noupdates_before_first; ++v) aom_write(bc, 0, upd); } aom_write(bc, u, upd); if (u) { /* send/use new probability */ av1_write_prob_diff_update(bc, newp, *oldp); *oldp = newp; } } } } } } if (updates == 0) { aom_write_bit(bc, 0); // no updates } return; } default: assert(0); } } #endif #if !CONFIG_EC_ADAPT static void update_coef_probs(AV1_COMP *cpi, aom_writer *w) { const TX_MODE tx_mode = cpi->common.tx_mode; const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode]; TX_SIZE tx_size; for (tx_size = 0; tx_size <= max_tx_size; ++tx_size) { av1_coeff_stats frame_branch_ct[PLANE_TYPES]; av1_coeff_probs_model frame_coef_probs[PLANE_TYPES]; if (cpi->td.counts->tx_size_totals[tx_size] <= 20 || CONFIG_RD_DEBUG || (tx_size >= TX_16X16 && cpi->sf.tx_size_search_method == USE_TX_8X8)) { aom_write_bit(w, 0); } else { build_tree_distribution(cpi, tx_size, frame_branch_ct, frame_coef_probs); update_coef_probs_common(w, cpi, tx_size, frame_branch_ct, frame_coef_probs); } } } #endif // !CONFIG_EC_ADAPT #endif // !CONFIG_EC_ADAPT #endif // !CONFIG_LV_MAP #if CONFIG_LOOP_RESTORATION static void encode_restoration_mode(AV1_COMMON *cm, struct aom_write_bit_buffer *wb) { int p; RestorationInfo *rsi = &cm->rst_info[0]; switch (rsi->frame_restoration_type) { case RESTORE_NONE: aom_wb_write_bit(wb, 0); aom_wb_write_bit(wb, 0); break; case RESTORE_WIENER: aom_wb_write_bit(wb, 1); aom_wb_write_bit(wb, 0); break; case RESTORE_SGRPROJ: aom_wb_write_bit(wb, 1); aom_wb_write_bit(wb, 1); break; case RESTORE_SWITCHABLE: aom_wb_write_bit(wb, 0); aom_wb_write_bit(wb, 1); break; default: assert(0); } for (p = 1; p < MAX_MB_PLANE; ++p) { rsi = &cm->rst_info[p]; switch (rsi->frame_restoration_type) { case RESTORE_NONE: aom_wb_write_bit(wb, 0); break; case RESTORE_WIENER: aom_wb_write_bit(wb, 1); aom_wb_write_bit(wb, 0); break; case RESTORE_SGRPROJ: aom_wb_write_bit(wb, 1); aom_wb_write_bit(wb, 1); break; default: assert(0); } } if (cm->rst_info[0].frame_restoration_type != RESTORE_NONE || cm->rst_info[1].frame_restoration_type != RESTORE_NONE || cm->rst_info[2].frame_restoration_type != RESTORE_NONE) { rsi = &cm->rst_info[0]; aom_wb_write_bit(wb, rsi->restoration_tilesize != RESTORATION_TILESIZE_MAX); if (rsi->restoration_tilesize != RESTORATION_TILESIZE_MAX) { aom_wb_write_bit( wb, rsi->restoration_tilesize != (RESTORATION_TILESIZE_MAX >> 1)); } } } static void write_wiener_filter(WienerInfo *wiener_info, WienerInfo *ref_wiener_info, aom_writer *wb) { aom_write_primitive_refsubexpfin( wb, WIENER_FILT_TAP0_MAXV - WIENER_FILT_TAP0_MINV + 1, WIENER_FILT_TAP0_SUBEXP_K, ref_wiener_info->vfilter[0] - WIENER_FILT_TAP0_MINV, wiener_info->vfilter[0] - WIENER_FILT_TAP0_MINV); aom_write_primitive_refsubexpfin( wb, WIENER_FILT_TAP1_MAXV - WIENER_FILT_TAP1_MINV + 1, WIENER_FILT_TAP1_SUBEXP_K, ref_wiener_info->vfilter[1] - WIENER_FILT_TAP1_MINV, wiener_info->vfilter[1] - WIENER_FILT_TAP1_MINV); aom_write_primitive_refsubexpfin( wb, WIENER_FILT_TAP2_MAXV - WIENER_FILT_TAP2_MINV + 1, WIENER_FILT_TAP2_SUBEXP_K, ref_wiener_info->vfilter[2] - WIENER_FILT_TAP2_MINV, wiener_info->vfilter[2] - WIENER_FILT_TAP2_MINV); aom_write_primitive_refsubexpfin( wb, WIENER_FILT_TAP0_MAXV - WIENER_FILT_TAP0_MINV + 1, WIENER_FILT_TAP0_SUBEXP_K, ref_wiener_info->hfilter[0] - WIENER_FILT_TAP0_MINV, wiener_info->hfilter[0] - WIENER_FILT_TAP0_MINV); aom_write_primitive_refsubexpfin( wb, WIENER_FILT_TAP1_MAXV - WIENER_FILT_TAP1_MINV + 1, WIENER_FILT_TAP1_SUBEXP_K, ref_wiener_info->hfilter[1] - WIENER_FILT_TAP1_MINV, wiener_info->hfilter[1] - WIENER_FILT_TAP1_MINV); aom_write_primitive_refsubexpfin( wb, WIENER_FILT_TAP2_MAXV - WIENER_FILT_TAP2_MINV + 1, WIENER_FILT_TAP2_SUBEXP_K, ref_wiener_info->hfilter[2] - WIENER_FILT_TAP2_MINV, wiener_info->hfilter[2] - WIENER_FILT_TAP2_MINV); memcpy(ref_wiener_info, wiener_info, sizeof(*wiener_info)); } static void write_sgrproj_filter(SgrprojInfo *sgrproj_info, SgrprojInfo *ref_sgrproj_info, aom_writer *wb) { aom_write_literal(wb, sgrproj_info->ep, SGRPROJ_PARAMS_BITS); aom_write_primitive_refsubexpfin(wb, SGRPROJ_PRJ_MAX0 - SGRPROJ_PRJ_MIN0 + 1, SGRPROJ_PRJ_SUBEXP_K, ref_sgrproj_info->xqd[0] - SGRPROJ_PRJ_MIN0, sgrproj_info->xqd[0] - SGRPROJ_PRJ_MIN0); aom_write_primitive_refsubexpfin(wb, SGRPROJ_PRJ_MAX1 - SGRPROJ_PRJ_MIN1 + 1, SGRPROJ_PRJ_SUBEXP_K, ref_sgrproj_info->xqd[1] - SGRPROJ_PRJ_MIN1, sgrproj_info->xqd[1] - SGRPROJ_PRJ_MIN1); memcpy(ref_sgrproj_info, sgrproj_info, sizeof(*sgrproj_info)); } static void encode_restoration(AV1_COMMON *cm, aom_writer *wb) { int i, p; const int ntiles = av1_get_rest_ntiles(cm->width, cm->height, cm->rst_info[0].restoration_tilesize, NULL, NULL, NULL, NULL); WienerInfo ref_wiener_info; SgrprojInfo ref_sgrproj_info; set_default_wiener(&ref_wiener_info); set_default_sgrproj(&ref_sgrproj_info); const int ntiles_uv = av1_get_rest_ntiles( ROUND_POWER_OF_TWO(cm->width, cm->subsampling_x), ROUND_POWER_OF_TWO(cm->height, cm->subsampling_y), cm->rst_info[1].restoration_tilesize, NULL, NULL, NULL, NULL); RestorationInfo *rsi = &cm->rst_info[0]; if (rsi->frame_restoration_type != RESTORE_NONE) { if (rsi->frame_restoration_type == RESTORE_SWITCHABLE) { // RESTORE_SWITCHABLE for (i = 0; i < ntiles; ++i) { av1_write_token( wb, av1_switchable_restore_tree, cm->fc->switchable_restore_prob, &switchable_restore_encodings[rsi->restoration_type[i]]); if (rsi->restoration_type[i] == RESTORE_WIENER) { write_wiener_filter(&rsi->wiener_info[i], &ref_wiener_info, wb); } else if (rsi->restoration_type[i] == RESTORE_SGRPROJ) { write_sgrproj_filter(&rsi->sgrproj_info[i], &ref_sgrproj_info, wb); } } } else if (rsi->frame_restoration_type == RESTORE_WIENER) { for (i = 0; i < ntiles; ++i) { aom_write(wb, rsi->restoration_type[i] != RESTORE_NONE, RESTORE_NONE_WIENER_PROB); if (rsi->restoration_type[i] != RESTORE_NONE) { write_wiener_filter(&rsi->wiener_info[i], &ref_wiener_info, wb); } } } else if (rsi->frame_restoration_type == RESTORE_SGRPROJ) { for (i = 0; i < ntiles; ++i) { aom_write(wb, rsi->restoration_type[i] != RESTORE_NONE, RESTORE_NONE_SGRPROJ_PROB); if (rsi->restoration_type[i] != RESTORE_NONE) { write_sgrproj_filter(&rsi->sgrproj_info[i], &ref_sgrproj_info, wb); } } } } for (p = 1; p < MAX_MB_PLANE; ++p) { set_default_wiener(&ref_wiener_info); set_default_sgrproj(&ref_sgrproj_info); rsi = &cm->rst_info[p]; if (rsi->frame_restoration_type == RESTORE_WIENER) { for (i = 0; i < ntiles_uv; ++i) { if (ntiles_uv > 1) aom_write(wb, rsi->restoration_type[i] != RESTORE_NONE, RESTORE_NONE_WIENER_PROB); if (rsi->restoration_type[i] != RESTORE_NONE) { write_wiener_filter(&rsi->wiener_info[i], &ref_wiener_info, wb); } } } else if (rsi->frame_restoration_type == RESTORE_SGRPROJ) { for (i = 0; i < ntiles_uv; ++i) { if (ntiles_uv > 1) aom_write(wb, rsi->restoration_type[i] != RESTORE_NONE, RESTORE_NONE_SGRPROJ_PROB); if (rsi->restoration_type[i] != RESTORE_NONE) { write_sgrproj_filter(&rsi->sgrproj_info[i], &ref_sgrproj_info, wb); } } } else if (rsi->frame_restoration_type != RESTORE_NONE) { assert(0); } } } #endif // CONFIG_LOOP_RESTORATION static void encode_loopfilter(AV1_COMMON *cm, struct aom_write_bit_buffer *wb) { int i; struct loopfilter *lf = &cm->lf; // Encode the loop filter level and type aom_wb_write_literal(wb, lf->filter_level, 6); aom_wb_write_literal(wb, lf->sharpness_level, 3); // Write out loop filter deltas applied at the MB level based on mode or // ref frame (if they are enabled). aom_wb_write_bit(wb, lf->mode_ref_delta_enabled); if (lf->mode_ref_delta_enabled) { aom_wb_write_bit(wb, lf->mode_ref_delta_update); if (lf->mode_ref_delta_update) { for (i = 0; i < TOTAL_REFS_PER_FRAME; i++) { const int delta = lf->ref_deltas[i]; const int changed = delta != lf->last_ref_deltas[i]; aom_wb_write_bit(wb, changed); if (changed) { lf->last_ref_deltas[i] = delta; aom_wb_write_inv_signed_literal(wb, delta, 6); } } for (i = 0; i < MAX_MODE_LF_DELTAS; i++) { const int delta = lf->mode_deltas[i]; const int changed = delta != lf->last_mode_deltas[i]; aom_wb_write_bit(wb, changed); if (changed) { lf->last_mode_deltas[i] = delta; aom_wb_write_inv_signed_literal(wb, delta, 6); } } } } } #if CONFIG_CDEF static void encode_cdef(const AV1_COMMON *cm, struct aom_write_bit_buffer *wb) { int i; aom_wb_write_literal(wb, cm->cdef_dering_damping - 5, 1); aom_wb_write_literal(wb, cm->cdef_clpf_damping - 3, 2); aom_wb_write_literal(wb, cm->cdef_bits, 2); for (i = 0; i < cm->nb_cdef_strengths; i++) { aom_wb_write_literal(wb, cm->cdef_strengths[i], CDEF_STRENGTH_BITS); aom_wb_write_literal(wb, cm->cdef_uv_strengths[i], CDEF_STRENGTH_BITS); } } #endif static void write_delta_q(struct aom_write_bit_buffer *wb, int delta_q) { if (delta_q != 0) { aom_wb_write_bit(wb, 1); aom_wb_write_inv_signed_literal(wb, delta_q, 6); } else { aom_wb_write_bit(wb, 0); } } static void encode_quantization(const AV1_COMMON *const cm, struct aom_write_bit_buffer *wb) { aom_wb_write_literal(wb, cm->base_qindex, QINDEX_BITS); write_delta_q(wb, cm->y_dc_delta_q); write_delta_q(wb, cm->uv_dc_delta_q); write_delta_q(wb, cm->uv_ac_delta_q); #if CONFIG_AOM_QM aom_wb_write_bit(wb, cm->using_qmatrix); if (cm->using_qmatrix) { aom_wb_write_literal(wb, cm->min_qmlevel, QM_LEVEL_BITS); aom_wb_write_literal(wb, cm->max_qmlevel, QM_LEVEL_BITS); } #endif } static void encode_segmentation(AV1_COMMON *cm, MACROBLOCKD *xd, struct aom_write_bit_buffer *wb) { int i, j; const struct segmentation *seg = &cm->seg; aom_wb_write_bit(wb, seg->enabled); if (!seg->enabled) return; // Segmentation map if (!frame_is_intra_only(cm) && !cm->error_resilient_mode) { aom_wb_write_bit(wb, seg->update_map); } else { assert(seg->update_map == 1); } if (seg->update_map) { // Select the coding strategy (temporal or spatial) av1_choose_segmap_coding_method(cm, xd); // Write out the chosen coding method. if (!frame_is_intra_only(cm) && !cm->error_resilient_mode) { aom_wb_write_bit(wb, seg->temporal_update); } else { assert(seg->temporal_update == 0); } } // Segmentation data aom_wb_write_bit(wb, seg->update_data); if (seg->update_data) { aom_wb_write_bit(wb, seg->abs_delta); for (i = 0; i < MAX_SEGMENTS; i++) { for (j = 0; j < SEG_LVL_MAX; j++) { const int active = segfeature_active(seg, i, j); aom_wb_write_bit(wb, active); if (active) { const int data = get_segdata(seg, i, j); const int data_max = av1_seg_feature_data_max(j); if (av1_is_segfeature_signed(j)) { encode_unsigned_max(wb, abs(data), data_max); aom_wb_write_bit(wb, data < 0); } else { encode_unsigned_max(wb, data, data_max); } } } } } } #if !CONFIG_EC_ADAPT static void update_seg_probs(AV1_COMP *cpi, aom_writer *w) { AV1_COMMON *cm = &cpi->common; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif if (!cm->seg.enabled || !cm->seg.update_map) return; if (cm->seg.temporal_update) { int i; for (i = 0; i < PREDICTION_PROBS; i++) av1_cond_prob_diff_update(w, &cm->fc->seg.pred_probs[i], cm->counts.seg.pred[i], probwt); prob_diff_update(av1_segment_tree, cm->fc->seg.tree_probs, cm->counts.seg.tree_mispred, MAX_SEGMENTS, probwt, w); } else { prob_diff_update(av1_segment_tree, cm->fc->seg.tree_probs, cm->counts.seg.tree_total, MAX_SEGMENTS, probwt, w); } } #endif static void write_tx_mode(AV1_COMMON *cm, MACROBLOCKD *xd, TX_MODE *mode, struct aom_write_bit_buffer *wb) { int i, all_lossless = 1; if (cm->seg.enabled) { for (i = 0; i < MAX_SEGMENTS; ++i) { if (!xd->lossless[i]) { all_lossless = 0; break; } } } else { all_lossless = xd->lossless[0]; } if (all_lossless) { *mode = ONLY_4X4; return; } #if CONFIG_TX64X64 aom_wb_write_bit(wb, *mode == TX_MODE_SELECT); if (*mode != TX_MODE_SELECT) { aom_wb_write_literal(wb, AOMMIN(*mode, ALLOW_32X32), 2); if (*mode >= ALLOW_32X32) aom_wb_write_bit(wb, *mode == ALLOW_64X64); } #else aom_wb_write_bit(wb, *mode == TX_MODE_SELECT); if (*mode != TX_MODE_SELECT) aom_wb_write_literal(wb, *mode, 2); #endif // CONFIG_TX64X64 } #if !CONFIG_EC_ADAPT static void update_txfm_probs(AV1_COMMON *cm, aom_writer *w, FRAME_COUNTS *counts) { #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif if (cm->tx_mode == TX_MODE_SELECT) { int i, j; for (i = 0; i < MAX_TX_DEPTH; ++i) for (j = 0; j < TX_SIZE_CONTEXTS; ++j) prob_diff_update(av1_tx_size_tree[i], cm->fc->tx_size_probs[i][j], counts->tx_size[i][j], i + 2, probwt, w); } } #endif static void write_frame_interp_filter(InterpFilter filter, struct aom_write_bit_buffer *wb) { aom_wb_write_bit(wb, filter == SWITCHABLE); if (filter != SWITCHABLE) aom_wb_write_literal(wb, filter, LOG_SWITCHABLE_FILTERS); } static void fix_interp_filter(AV1_COMMON *cm, FRAME_COUNTS *counts) { if (cm->interp_filter == SWITCHABLE) { // Check to see if only one of the filters is actually used int count[SWITCHABLE_FILTERS]; int i, j, c = 0; for (i = 0; i < SWITCHABLE_FILTERS; ++i) { count[i] = 0; for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j) count[i] += counts->switchable_interp[j][i]; c += (count[i] > 0); } if (c == 1) { // Only one filter is used. So set the filter at frame level for (i = 0; i < SWITCHABLE_FILTERS; ++i) { if (count[i]) { #if CONFIG_MOTION_VAR && (CONFIG_WARPED_MOTION || CONFIG_GLOBAL_MOTION) #if CONFIG_WARPED_MOTION if (i == EIGHTTAP_REGULAR || WARP_WM_NEIGHBORS_WITH_OBMC) #else if (i == EIGHTTAP_REGULAR || WARP_GM_NEIGHBORS_WITH_OBMC) #endif // CONFIG_WARPED_MOTION #endif // CONFIG_MOTION_VAR && (CONFIG_WARPED_MOTION || CONFIG_GLOBAL_MOTION) cm->interp_filter = i; break; } } } } } static void write_tile_info(const AV1_COMMON *const cm, struct aom_write_bit_buffer *wb) { #if CONFIG_EXT_TILE const int tile_width = ALIGN_POWER_OF_TWO(cm->tile_width, cm->mib_size_log2) >> cm->mib_size_log2; const int tile_height = ALIGN_POWER_OF_TWO(cm->tile_height, cm->mib_size_log2) >> cm->mib_size_log2; assert(tile_width > 0); assert(tile_height > 0); aom_wb_write_literal(wb, cm->tile_encoding_mode, 1); // Write the tile sizes #if CONFIG_EXT_PARTITION if (cm->sb_size == BLOCK_128X128) { assert(tile_width <= 32); assert(tile_height <= 32); aom_wb_write_literal(wb, tile_width - 1, 5); aom_wb_write_literal(wb, tile_height - 1, 5); } else #endif // CONFIG_EXT_PARTITION { assert(tile_width <= 64); assert(tile_height <= 64); aom_wb_write_literal(wb, tile_width - 1, 6); aom_wb_write_literal(wb, tile_height - 1, 6); } #if CONFIG_DEPENDENT_HORZTILES if (tile_height > 1) aom_wb_write_bit(wb, cm->dependent_horz_tiles); #endif #else int min_log2_tile_cols, max_log2_tile_cols, ones; av1_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols); // columns ones = cm->log2_tile_cols - min_log2_tile_cols; while (ones--) aom_wb_write_bit(wb, 1); if (cm->log2_tile_cols < max_log2_tile_cols) aom_wb_write_bit(wb, 0); // rows aom_wb_write_bit(wb, cm->log2_tile_rows != 0); if (cm->log2_tile_rows != 0) aom_wb_write_bit(wb, cm->log2_tile_rows != 1); #if CONFIG_DEPENDENT_HORZTILES if (cm->log2_tile_rows != 0) aom_wb_write_bit(wb, cm->dependent_horz_tiles); #endif #endif // CONFIG_EXT_TILE #if CONFIG_LOOPFILTERING_ACROSS_TILES aom_wb_write_bit(wb, cm->loop_filter_across_tiles_enabled); #endif // CONFIG_LOOPFILTERING_ACROSS_TILES } static int get_refresh_mask(AV1_COMP *cpi) { int refresh_mask = 0; #if CONFIG_EXT_REFS // NOTE(zoeliu): When LAST_FRAME is to get refreshed, the decoder will be // notified to get LAST3_FRAME refreshed and then the virtual indexes for all // the 3 LAST reference frames will be updated accordingly, i.e.: // (1) The original virtual index for LAST3_FRAME will become the new virtual // index for LAST_FRAME; and // (2) The original virtual indexes for LAST_FRAME and LAST2_FRAME will be // shifted and become the new virtual indexes for LAST2_FRAME and // LAST3_FRAME. refresh_mask |= (cpi->refresh_last_frame << cpi->lst_fb_idxes[LAST_REF_FRAMES - 1]); if (cpi->rc.is_bwd_ref_frame && cpi->num_extra_arfs) { // We have swapped the virtual indices refresh_mask |= (cpi->refresh_bwd_ref_frame << cpi->arf_map[0]); } else { refresh_mask |= (cpi->refresh_bwd_ref_frame << cpi->bwd_fb_idx); } #else refresh_mask |= (cpi->refresh_last_frame << cpi->lst_fb_idx); #endif // CONFIG_EXT_REFS if (av1_preserve_existing_gf(cpi)) { // We have decided to preserve the previously existing golden frame as our // new ARF frame. However, in the short term we leave it in the GF slot and, // if we're updating the GF with the current decoded frame, we save it // instead to the ARF slot. // Later, in the function av1_encoder.c:av1_update_reference_frames() we // will swap gld_fb_idx and alt_fb_idx to achieve our objective. We do it // there so that it can be done outside of the recode loop. // Note: This is highly specific to the use of ARF as a forward reference, // and this needs to be generalized as other uses are implemented // (like RTC/temporal scalability). return refresh_mask | (cpi->refresh_golden_frame << cpi->alt_fb_idx); } else { #if CONFIG_EXT_REFS const GF_GROUP *const gf_group = &cpi->twopass.gf_group; int arf_idx = cpi->arf_map[gf_group->arf_update_idx[gf_group->index]]; #else int arf_idx = cpi->alt_fb_idx; if ((cpi->oxcf.pass == 2) && cpi->multi_arf_allowed) { const GF_GROUP *const gf_group = &cpi->twopass.gf_group; arf_idx = gf_group->arf_update_idx[gf_group->index]; } #endif // CONFIG_EXT_REFS return refresh_mask | (cpi->refresh_golden_frame << cpi->gld_fb_idx) | (cpi->refresh_alt_ref_frame << arf_idx); } } #if CONFIG_EXT_TILE static INLINE int find_identical_tile( const int tile_row, const int tile_col, TileBufferEnc (*const tile_buffers)[1024]) { const MV32 candidate_offset[1] = { { 1, 0 } }; const uint8_t *const cur_tile_data = tile_buffers[tile_row][tile_col].data + 4; const size_t cur_tile_size = tile_buffers[tile_row][tile_col].size; int i; if (tile_row == 0) return 0; // (TODO: yunqingwang) For now, only above tile is checked and used. // More candidates such as left tile can be added later. for (i = 0; i < 1; i++) { int row_offset = candidate_offset[0].row; int col_offset = candidate_offset[0].col; int row = tile_row - row_offset; int col = tile_col - col_offset; uint8_t tile_hdr; const uint8_t *tile_data; TileBufferEnc *candidate; if (row < 0 || col < 0) continue; tile_hdr = *(tile_buffers[row][col].data); // Read out tcm bit if ((tile_hdr >> 7) == 1) { // The candidate is a copy tile itself row_offset += tile_hdr & 0x7f; row = tile_row - row_offset; } candidate = &tile_buffers[row][col]; if (row_offset >= 128 || candidate->size != cur_tile_size) continue; tile_data = candidate->data + 4; if (memcmp(tile_data, cur_tile_data, cur_tile_size) != 0) continue; // Identical tile found assert(row_offset > 0); return row_offset; } // No identical tile found return 0; } #endif // CONFIG_EXT_TILE #if CONFIG_TILE_GROUPS static uint32_t write_tiles(AV1_COMP *const cpi, struct aom_write_bit_buffer *wb, unsigned int *max_tile_size, unsigned int *max_tile_col_size) { #else static uint32_t write_tiles(AV1_COMP *const cpi, uint8_t *const dst, unsigned int *max_tile_size, unsigned int *max_tile_col_size) { #endif const AV1_COMMON *const cm = &cpi->common; #if CONFIG_ANS struct BufAnsCoder *buf_ans = &cpi->buf_ans; #else aom_writer mode_bc; #endif // CONFIG_ANS int tile_row, tile_col; TOKENEXTRA *(*const tok_buffers)[MAX_TILE_COLS] = cpi->tile_tok; TileBufferEnc(*const tile_buffers)[MAX_TILE_COLS] = cpi->tile_buffers; uint32_t total_size = 0; const int tile_cols = cm->tile_cols; const int tile_rows = cm->tile_rows; unsigned int tile_size = 0; #if CONFIG_TILE_GROUPS const int n_log2_tiles = cm->log2_tile_rows + cm->log2_tile_cols; const int have_tiles = n_log2_tiles > 0; uint32_t comp_hdr_size; // Fixed size tile groups for the moment const int num_tg_hdrs = cm->num_tg; const int tg_size = (tile_rows * tile_cols + num_tg_hdrs - 1) / num_tg_hdrs; int tile_count = 0; int tg_count = 1; int tile_size_bytes = 4; int tile_col_size_bytes; uint32_t uncompressed_hdr_size = 0; uint8_t *dst = NULL; struct aom_write_bit_buffer comp_hdr_len_wb; struct aom_write_bit_buffer tg_params_wb; struct aom_write_bit_buffer tile_size_bytes_wb; uint32_t saved_offset; int mtu_size = cpi->oxcf.mtu; int curr_tg_data_size = 0; int hdr_size; #endif #if CONFIG_EXT_TILE const int have_tiles = tile_cols * tile_rows > 1; #endif // CONFIG_EXT_TILE *max_tile_size = 0; *max_tile_col_size = 0; // All tile size fields are output on 4 bytes. A call to remux_tiles will // later compact the data if smaller headers are adequate. #if CONFIG_EXT_TILE for (tile_col = 0; tile_col < tile_cols; tile_col++) { TileInfo tile_info; const int is_last_col = (tile_col == tile_cols - 1); const uint32_t col_offset = total_size; av1_tile_set_col(&tile_info, cm, tile_col); // The last column does not have a column header if (!is_last_col) total_size += 4; for (tile_row = 0; tile_row < tile_rows; tile_row++) { TileBufferEnc *const buf = &tile_buffers[tile_row][tile_col]; const TOKENEXTRA *tok = tok_buffers[tile_row][tile_col]; const TOKENEXTRA *tok_end = tok + cpi->tok_count[tile_row][tile_col]; const int data_offset = have_tiles ? 4 : 0; #if CONFIG_EC_ADAPT const int tile_idx = tile_row * tile_cols + tile_col; TileDataEnc *this_tile = &cpi->tile_data[tile_idx]; #endif av1_tile_set_row(&tile_info, cm, tile_row); buf->data = dst + total_size; // Is CONFIG_EXT_TILE = 1, every tile in the row has a header, // even for the last one, unless no tiling is used at all. total_size += data_offset; #if CONFIG_EC_ADAPT // Initialise tile context from the frame context this_tile->tctx = *cm->fc; cpi->td.mb.e_mbd.tile_ctx = &this_tile->tctx; #endif #if CONFIG_PVQ cpi->td.mb.pvq_q = &this_tile->pvq_q; cpi->td.mb.daala_enc.state.adapt = &this_tile->tctx.pvq_context; #endif // CONFIG_PVQ #if !CONFIG_ANS aom_start_encode(&mode_bc, buf->data + data_offset); write_modes(cpi, &tile_info, &mode_bc, &tok, tok_end); assert(tok == tok_end); aom_stop_encode(&mode_bc); tile_size = mode_bc.pos; #else buf_ans_write_init(buf_ans, buf->data + data_offset); write_modes(cpi, &tile_info, buf_ans, &tok, tok_end); assert(tok == tok_end); aom_buf_ans_flush(buf_ans); tile_size = buf_ans_write_end(buf_ans); #endif // !CONFIG_ANS #if CONFIG_PVQ cpi->td.mb.pvq_q = NULL; #endif buf->size = tile_size; // Record the maximum tile size we see, so we can compact headers later. *max_tile_size = AOMMAX(*max_tile_size, tile_size); if (have_tiles) { // tile header: size of this tile, or copy offset uint32_t tile_header = tile_size; // If the tile_encoding_mode is 1 (i.e. TILE_VR), check if this tile is // a copy tile. // Very low chances to have copy tiles on the key frames, so don't // search on key frames to reduce unnecessary search. if (cm->frame_type != KEY_FRAME && cm->tile_encoding_mode) { const int idendical_tile_offset = find_identical_tile(tile_row, tile_col, tile_buffers); if (idendical_tile_offset > 0) { tile_size = 0; tile_header = idendical_tile_offset | 0x80; tile_header <<= 24; } } mem_put_le32(buf->data, tile_header); } total_size += tile_size; } if (!is_last_col) { uint32_t col_size = total_size - col_offset - 4; mem_put_le32(dst + col_offset, col_size); // If it is not final packing, record the maximum tile column size we see, // otherwise, check if the tile size is out of the range. *max_tile_col_size = AOMMAX(*max_tile_col_size, col_size); } } #else #if CONFIG_TILE_GROUPS write_uncompressed_header(cpi, wb); #if CONFIG_EXT_REFS if (cm->show_existing_frame) { total_size = aom_wb_bytes_written(wb); return (uint32_t)total_size; } #endif // CONFIG_EXT_REFS // Write the tile length code tile_size_bytes_wb = *wb; aom_wb_write_literal(wb, 3, 2); /* Write a placeholder for the number of tiles in each tile group */ tg_params_wb = *wb; saved_offset = wb->bit_offset; if (have_tiles) { aom_wb_overwrite_literal(wb, 3, n_log2_tiles); aom_wb_overwrite_literal(wb, (1 << n_log2_tiles) - 1, n_log2_tiles); } /* Write a placeholder for the compressed header length */ comp_hdr_len_wb = *wb; aom_wb_write_literal(wb, 0, 16); uncompressed_hdr_size = aom_wb_bytes_written(wb); dst = wb->bit_buffer; comp_hdr_size = write_compressed_header(cpi, dst + uncompressed_hdr_size); aom_wb_overwrite_literal(&comp_hdr_len_wb, (int)(comp_hdr_size), 16); hdr_size = uncompressed_hdr_size + comp_hdr_size; total_size += hdr_size; #endif for (tile_row = 0; tile_row < tile_rows; tile_row++) { TileInfo tile_info; const int is_last_row = (tile_row == tile_rows - 1); av1_tile_set_row(&tile_info, cm, tile_row); for (tile_col = 0; tile_col < tile_cols; tile_col++) { const int tile_idx = tile_row * tile_cols + tile_col; TileBufferEnc *const buf = &tile_buffers[tile_row][tile_col]; #if CONFIG_PVQ || CONFIG_EC_ADAPT TileDataEnc *this_tile = &cpi->tile_data[tile_idx]; #endif const TOKENEXTRA *tok = tok_buffers[tile_row][tile_col]; const TOKENEXTRA *tok_end = tok + cpi->tok_count[tile_row][tile_col]; const int is_last_col = (tile_col == tile_cols - 1); const int is_last_tile = is_last_col && is_last_row; #if !CONFIG_TILE_GROUPS (void)tile_idx; #else if ((!mtu_size && tile_count > tg_size) || (mtu_size && tile_count && curr_tg_data_size >= mtu_size)) { // New tile group tg_count++; // We've exceeded the packet size if (tile_count > 1) { /* The last tile exceeded the packet size. The tile group size should therefore be tile_count-1. Move the last tile and insert headers before it */ uint32_t old_total_size = total_size - tile_size - 4; memmove(dst + old_total_size + hdr_size, dst + old_total_size, (tile_size + 4) * sizeof(uint8_t)); // Copy uncompressed header memmove(dst + old_total_size, dst, uncompressed_hdr_size * sizeof(uint8_t)); // Write the number of tiles in the group into the last uncompressed // header before the one we've just inserted aom_wb_overwrite_literal(&tg_params_wb, tile_idx - tile_count, n_log2_tiles); aom_wb_overwrite_literal(&tg_params_wb, tile_count - 2, n_log2_tiles); // Update the pointer to the last TG params tg_params_wb.bit_offset = saved_offset + 8 * old_total_size; // Copy compressed header memmove(dst + old_total_size + uncompressed_hdr_size, dst + uncompressed_hdr_size, comp_hdr_size * sizeof(uint8_t)); total_size += hdr_size; tile_count = 1; curr_tg_data_size = hdr_size + tile_size + 4; } else { // We exceeded the packet size in just one tile // Copy uncompressed header memmove(dst + total_size, dst, uncompressed_hdr_size * sizeof(uint8_t)); // Write the number of tiles in the group into the last uncompressed // header aom_wb_overwrite_literal(&tg_params_wb, tile_idx - tile_count, n_log2_tiles); aom_wb_overwrite_literal(&tg_params_wb, tile_count - 1, n_log2_tiles); tg_params_wb.bit_offset = saved_offset + 8 * total_size; // Copy compressed header memmove(dst + total_size + uncompressed_hdr_size, dst + uncompressed_hdr_size, comp_hdr_size * sizeof(uint8_t)); total_size += hdr_size; tile_count = 0; curr_tg_data_size = hdr_size; } } tile_count++; #endif av1_tile_set_col(&tile_info, cm, tile_col); #if CONFIG_DEPENDENT_HORZTILES && CONFIG_TILE_GROUPS av1_tile_set_tg_boundary(&tile_info, cm, tile_row, tile_col); #endif buf->data = dst + total_size; // The last tile does not have a header. if (!is_last_tile) total_size += 4; #if CONFIG_EC_ADAPT // Initialise tile context from the frame context this_tile->tctx = *cm->fc; cpi->td.mb.e_mbd.tile_ctx = &this_tile->tctx; #endif #if CONFIG_PVQ cpi->td.mb.pvq_q = &this_tile->pvq_q; cpi->td.mb.daala_enc.state.adapt = &this_tile->tctx.pvq_context; #endif // CONFIG_PVQ #if CONFIG_ANS buf_ans_write_init(buf_ans, dst + total_size); write_modes(cpi, &tile_info, buf_ans, &tok, tok_end); assert(tok == tok_end); aom_buf_ans_flush(buf_ans); tile_size = buf_ans_write_end(buf_ans); #else aom_start_encode(&mode_bc, dst + total_size); write_modes(cpi, &tile_info, &mode_bc, &tok, tok_end); #if !CONFIG_LV_MAP assert(tok == tok_end); #endif // !CONFIG_LV_MAP aom_stop_encode(&mode_bc); tile_size = mode_bc.pos; #endif // CONFIG_ANS #if CONFIG_PVQ cpi->td.mb.pvq_q = NULL; #endif assert(tile_size > 0); #if CONFIG_TILE_GROUPS curr_tg_data_size += tile_size + 4; #endif buf->size = tile_size; if (!is_last_tile) { *max_tile_size = AOMMAX(*max_tile_size, tile_size); // size of this tile mem_put_le32(buf->data, tile_size); } total_size += tile_size; } } #if CONFIG_TILE_GROUPS // Write the final tile group size if (n_log2_tiles) { aom_wb_overwrite_literal(&tg_params_wb, (1 << n_log2_tiles) - tile_count, n_log2_tiles); aom_wb_overwrite_literal(&tg_params_wb, tile_count - 1, n_log2_tiles); } // Remux if possible. TODO (Thomas Davies): do this for more than one tile // group if (have_tiles && tg_count == 1) { int data_size = total_size - (uncompressed_hdr_size + comp_hdr_size); data_size = remux_tiles(cm, dst + uncompressed_hdr_size + comp_hdr_size, data_size, *max_tile_size, *max_tile_col_size, &tile_size_bytes, &tile_col_size_bytes); total_size = data_size + uncompressed_hdr_size + comp_hdr_size; aom_wb_overwrite_literal(&tile_size_bytes_wb, tile_size_bytes - 1, 2); } #endif #endif // CONFIG_EXT_TILE return (uint32_t)total_size; } static void write_render_size(const AV1_COMMON *cm, struct aom_write_bit_buffer *wb) { const int scaling_active = cm->width != cm->render_width || cm->height != cm->render_height; aom_wb_write_bit(wb, scaling_active); if (scaling_active) { aom_wb_write_literal(wb, cm->render_width - 1, 16); aom_wb_write_literal(wb, cm->render_height - 1, 16); } } #if CONFIG_FRAME_SUPERRES static void write_superres_scale(const AV1_COMMON *const cm, struct aom_write_bit_buffer *wb) { // First bit is whether to to scale or not if (cm->superres_scale_numerator == SUPERRES_SCALE_DENOMINATOR) { aom_wb_write_bit(wb, 0); // no scaling } else { aom_wb_write_bit(wb, 1); // scaling, write scale factor // TODO(afergs): write factor to the compressed header instead aom_wb_write_literal( wb, cm->superres_scale_numerator - SUPERRES_SCALE_NUMERATOR_MIN, SUPERRES_SCALE_BITS); } } #endif // CONFIG_FRAME_SUPERRES static void write_frame_size(const AV1_COMMON *cm, struct aom_write_bit_buffer *wb) { aom_wb_write_literal(wb, cm->width - 1, 16); aom_wb_write_literal(wb, cm->height - 1, 16); write_render_size(cm, wb); #if CONFIG_FRAME_SUPERRES write_superres_scale(cm, wb); #endif // CONFIG_FRAME_SUPERRES } static void write_frame_size_with_refs(AV1_COMP *cpi, struct aom_write_bit_buffer *wb) { AV1_COMMON *const cm = &cpi->common; int found = 0; MV_REFERENCE_FRAME ref_frame; for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi, ref_frame); if (cfg != NULL) { found = cm->width == cfg->y_crop_width && cm->height == cfg->y_crop_height; found &= cm->render_width == cfg->render_width && cm->render_height == cfg->render_height; } aom_wb_write_bit(wb, found); if (found) { break; } } if (!found) { write_frame_size(cm, wb); } } static void write_sync_code(struct aom_write_bit_buffer *wb) { aom_wb_write_literal(wb, AV1_SYNC_CODE_0, 8); aom_wb_write_literal(wb, AV1_SYNC_CODE_1, 8); aom_wb_write_literal(wb, AV1_SYNC_CODE_2, 8); } static void write_profile(BITSTREAM_PROFILE profile, struct aom_write_bit_buffer *wb) { switch (profile) { case PROFILE_0: aom_wb_write_literal(wb, 0, 2); break; case PROFILE_1: aom_wb_write_literal(wb, 2, 2); break; case PROFILE_2: aom_wb_write_literal(wb, 1, 2); break; case PROFILE_3: aom_wb_write_literal(wb, 6, 3); break; default: assert(0); } } static void write_bitdepth_colorspace_sampling( AV1_COMMON *const cm, struct aom_write_bit_buffer *wb) { if (cm->profile >= PROFILE_2) { assert(cm->bit_depth > AOM_BITS_8); aom_wb_write_bit(wb, cm->bit_depth == AOM_BITS_10 ? 0 : 1); } aom_wb_write_literal(wb, cm->color_space, 3); if (cm->color_space != AOM_CS_SRGB) { // 0: [16, 235] (i.e. xvYCC), 1: [0, 255] aom_wb_write_bit(wb, cm->color_range); if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) { assert(cm->subsampling_x != 1 || cm->subsampling_y != 1); aom_wb_write_bit(wb, cm->subsampling_x); aom_wb_write_bit(wb, cm->subsampling_y); aom_wb_write_bit(wb, 0); // unused } else { assert(cm->subsampling_x == 1 && cm->subsampling_y == 1); } } else { assert(cm->profile == PROFILE_1 || cm->profile == PROFILE_3); aom_wb_write_bit(wb, 0); // unused } } #if CONFIG_REFERENCE_BUFFER void write_sequence_header(SequenceHeader *seq_params) { /* Placeholder for actually writing to the bitstream */ seq_params->frame_id_numbers_present_flag = FRAME_ID_NUMBERS_PRESENT_FLAG; seq_params->frame_id_length_minus7 = FRAME_ID_LENGTH_MINUS7; seq_params->delta_frame_id_length_minus2 = DELTA_FRAME_ID_LENGTH_MINUS2; } #endif #if CONFIG_EXT_INTER static void write_compound_tools(const AV1_COMMON *cm, struct aom_write_bit_buffer *wb) { (void)cm; (void)wb; #if CONFIG_INTERINTRA if (!frame_is_intra_only(cm) && cm->reference_mode != COMPOUND_REFERENCE) { aom_wb_write_bit(wb, cm->allow_interintra_compound); } else { assert(cm->allow_interintra_compound == 0); } #endif // CONFIG_INTERINTRA #if CONFIG_WEDGE || CONFIG_COMPOUND_SEGMENT if (!frame_is_intra_only(cm) && cm->reference_mode != SINGLE_REFERENCE) { aom_wb_write_bit(wb, cm->allow_masked_compound); } else { assert(cm->allow_masked_compound == 0); } #endif // CONFIG_WEDGE || CONFIG_COMPOUND_SEGMENT } #endif // CONFIG_EXT_INTER static void write_uncompressed_header(AV1_COMP *cpi, struct aom_write_bit_buffer *wb) { AV1_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &cpi->td.mb.e_mbd; #if CONFIG_REFERENCE_BUFFER /* TODO: Move outside frame loop or inside key-frame branch */ write_sequence_header(&cpi->seq_params); #endif aom_wb_write_literal(wb, AOM_FRAME_MARKER, 2); write_profile(cm->profile, wb); #if CONFIG_EXT_REFS // NOTE: By default all coded frames to be used as a reference cm->is_reference_frame = 1; if (cm->show_existing_frame) { RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs; const int frame_to_show = cm->ref_frame_map[cpi->existing_fb_idx_to_show]; if (frame_to_show < 0 || frame_bufs[frame_to_show].ref_count < 1) { aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM, "Buffer %d does not contain a reconstructed frame", frame_to_show); } ref_cnt_fb(frame_bufs, &cm->new_fb_idx, frame_to_show); aom_wb_write_bit(wb, 1); // show_existing_frame aom_wb_write_literal(wb, cpi->existing_fb_idx_to_show, 3); #if CONFIG_REFERENCE_BUFFER if (cpi->seq_params.frame_id_numbers_present_flag) { int frame_id_len = cpi->seq_params.frame_id_length_minus7 + 7; int display_frame_id = cm->ref_frame_id[cpi->existing_fb_idx_to_show]; aom_wb_write_literal(wb, display_frame_id, frame_id_len); /* Add a zero byte to prevent emulation of superframe marker */ /* Same logic as when when terminating the entropy coder */ /* Consider to have this logic only one place */ aom_wb_write_literal(wb, 0, 8); } #endif return; } else { #endif // CONFIG_EXT_REFS aom_wb_write_bit(wb, 0); // show_existing_frame #if CONFIG_EXT_REFS } #endif // CONFIG_EXT_REFS aom_wb_write_bit(wb, cm->frame_type); aom_wb_write_bit(wb, cm->show_frame); aom_wb_write_bit(wb, cm->error_resilient_mode); #if CONFIG_REFERENCE_BUFFER cm->invalid_delta_frame_id_minus1 = 0; if (cpi->seq_params.frame_id_numbers_present_flag) { int frame_id_len = cpi->seq_params.frame_id_length_minus7 + 7; aom_wb_write_literal(wb, cm->current_frame_id, frame_id_len); } #endif #if CONFIG_FRAME_SUPERRES // TODO(afergs): Remove - this is just to stop superres from breaking cm->superres_scale_numerator = SUPERRES_SCALE_DENOMINATOR; #endif // CONFIG_FRAME_SUPERRES if (cm->frame_type == KEY_FRAME) { write_sync_code(wb); write_bitdepth_colorspace_sampling(cm, wb); write_frame_size(cm, wb); #if CONFIG_ANS && ANS_MAX_SYMBOLS assert(cpi->common.ans_window_size_log2 >= 8); assert(cpi->common.ans_window_size_log2 < 24); aom_wb_write_literal(wb, cpi->common.ans_window_size_log2 - 8, 4); #endif // CONFIG_ANS && ANS_MAX_SYMBOLS #if CONFIG_PALETTE || CONFIG_INTRABC aom_wb_write_bit(wb, cm->allow_screen_content_tools); #endif // CONFIG_PALETTE || CONFIG_INTRABC } else { if (!cm->show_frame) aom_wb_write_bit(wb, cm->intra_only); #if CONFIG_PALETTE || CONFIG_INTRABC if (cm->intra_only) aom_wb_write_bit(wb, cm->allow_screen_content_tools); #endif // CONFIG_PALETTE || CONFIG_INTRABC if (!cm->error_resilient_mode) { if (cm->intra_only) { aom_wb_write_bit(wb, cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL); } else { aom_wb_write_bit(wb, cm->reset_frame_context != RESET_FRAME_CONTEXT_NONE); if (cm->reset_frame_context != RESET_FRAME_CONTEXT_NONE) aom_wb_write_bit(wb, cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL); } } #if CONFIG_EXT_REFS cpi->refresh_frame_mask = get_refresh_mask(cpi); #endif // CONFIG_EXT_REFS if (cm->intra_only) { write_sync_code(wb); write_bitdepth_colorspace_sampling(cm, wb); #if CONFIG_EXT_REFS aom_wb_write_literal(wb, cpi->refresh_frame_mask, REF_FRAMES); #else aom_wb_write_literal(wb, get_refresh_mask(cpi), REF_FRAMES); #endif // CONFIG_EXT_REFS write_frame_size(cm, wb); #if CONFIG_ANS && ANS_MAX_SYMBOLS assert(cpi->common.ans_window_size_log2 >= 8); assert(cpi->common.ans_window_size_log2 < 24); aom_wb_write_literal(wb, cpi->common.ans_window_size_log2 - 8, 4); #endif // CONFIG_ANS && ANS_MAX_SYMBOLS } else { MV_REFERENCE_FRAME ref_frame; #if CONFIG_EXT_REFS aom_wb_write_literal(wb, cpi->refresh_frame_mask, REF_FRAMES); #else aom_wb_write_literal(wb, get_refresh_mask(cpi), REF_FRAMES); #endif // CONFIG_EXT_REFS #if CONFIG_EXT_REFS if (!cpi->refresh_frame_mask) { // NOTE: "cpi->refresh_frame_mask == 0" indicates that the coded frame // will not be used as a reference cm->is_reference_frame = 0; } #endif // CONFIG_EXT_REFS for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { assert(get_ref_frame_map_idx(cpi, ref_frame) != INVALID_IDX); aom_wb_write_literal(wb, get_ref_frame_map_idx(cpi, ref_frame), REF_FRAMES_LOG2); aom_wb_write_bit(wb, cm->ref_frame_sign_bias[ref_frame]); #if CONFIG_REFERENCE_BUFFER if (cpi->seq_params.frame_id_numbers_present_flag) { int i = get_ref_frame_map_idx(cpi, ref_frame); int frame_id_len = cpi->seq_params.frame_id_length_minus7 + 7; int diff_len = cpi->seq_params.delta_frame_id_length_minus2 + 2; int delta_frame_id_minus1 = ((cm->current_frame_id - cm->ref_frame_id[i] + (1 << frame_id_len)) % (1 << frame_id_len)) - 1; if (delta_frame_id_minus1 < 0 || delta_frame_id_minus1 >= (1 << diff_len)) cm->invalid_delta_frame_id_minus1 = 1; aom_wb_write_literal(wb, delta_frame_id_minus1, diff_len); } #endif } #if CONFIG_FRAME_SIZE if (cm->error_resilient_mode == 0) { write_frame_size_with_refs(cpi, wb); } else { write_frame_size(cm, wb); } #else write_frame_size_with_refs(cpi, wb); #endif aom_wb_write_bit(wb, cm->allow_high_precision_mv); fix_interp_filter(cm, cpi->td.counts); write_frame_interp_filter(cm->interp_filter, wb); #if CONFIG_TEMPMV_SIGNALING if (!cm->error_resilient_mode) { aom_wb_write_bit(wb, cm->use_prev_frame_mvs); } #endif } } #if CONFIG_REFERENCE_BUFFER cm->refresh_mask = cm->frame_type == KEY_FRAME ? 0xFF : get_refresh_mask(cpi); #endif if (!cm->error_resilient_mode) { aom_wb_write_bit( wb, cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_FORWARD); } aom_wb_write_literal(wb, cm->frame_context_idx, FRAME_CONTEXTS_LOG2); assert(cm->mib_size == mi_size_wide[cm->sb_size]); assert(cm->mib_size == 1 << cm->mib_size_log2); #if CONFIG_EXT_PARTITION assert(cm->sb_size == BLOCK_128X128 || cm->sb_size == BLOCK_64X64); aom_wb_write_bit(wb, cm->sb_size == BLOCK_128X128 ? 1 : 0); #else assert(cm->sb_size == BLOCK_64X64); #endif // CONFIG_EXT_PARTITION encode_loopfilter(cm, wb); #if CONFIG_CDEF encode_cdef(cm, wb); #endif #if CONFIG_LOOP_RESTORATION encode_restoration_mode(cm, wb); #endif // CONFIG_LOOP_RESTORATION encode_quantization(cm, wb); encode_segmentation(cm, xd, wb); #if CONFIG_DELTA_Q { int i; struct segmentation *const seg = &cm->seg; int segment_quantizer_active = 0; for (i = 0; i < MAX_SEGMENTS; i++) { if (segfeature_active(seg, i, SEG_LVL_ALT_Q)) { segment_quantizer_active = 1; } } if (cm->delta_q_present_flag) assert(segment_quantizer_active == 0 && cm->base_qindex > 0); if (segment_quantizer_active == 0 && cm->base_qindex > 0) { aom_wb_write_bit(wb, cm->delta_q_present_flag); if (cm->delta_q_present_flag) { aom_wb_write_literal(wb, OD_ILOG_NZ(cm->delta_q_res) - 1, 2); xd->prev_qindex = cm->base_qindex; #if CONFIG_EXT_DELTA_Q assert(seg->abs_delta == SEGMENT_DELTADATA); aom_wb_write_bit(wb, cm->delta_lf_present_flag); if (cm->delta_lf_present_flag) { aom_wb_write_literal(wb, OD_ILOG_NZ(cm->delta_lf_res) - 1, 2); xd->prev_delta_lf_from_base = 0; } #endif // CONFIG_EXT_DELTA_Q } } } #endif write_tx_mode(cm, xd, &cm->tx_mode, wb); if (cpi->allow_comp_inter_inter) { const int use_hybrid_pred = cm->reference_mode == REFERENCE_MODE_SELECT; #if !CONFIG_REF_ADAPT const int use_compound_pred = cm->reference_mode != SINGLE_REFERENCE; #endif // !CONFIG_REF_ADAPT aom_wb_write_bit(wb, use_hybrid_pred); #if !CONFIG_REF_ADAPT if (!use_hybrid_pred) aom_wb_write_bit(wb, use_compound_pred); #endif // !CONFIG_REF_ADAPT } #if CONFIG_EXT_INTER write_compound_tools(cm, wb); #endif // CONFIG_EXT_INTER #if CONFIG_EXT_TX aom_wb_write_bit(wb, cm->reduced_tx_set_used); #endif // CONFIG_EXT_TX write_tile_info(cm, wb); } #if CONFIG_GLOBAL_MOTION static void write_global_motion_params(WarpedMotionParams *params, WarpedMotionParams *ref_params, aom_prob *probs, aom_writer *w, int allow_hp) { TransformationType type = params->wmtype; int trans_bits; int trans_prec_diff; av1_write_token(w, av1_global_motion_types_tree, probs, &global_motion_types_encodings[type]); switch (type) { case HOMOGRAPHY: case HORTRAPEZOID: case VERTRAPEZOID: if (type != HORTRAPEZOID) aom_write_signed_primitive_refsubexpfin( w, GM_ROW3HOMO_MAX + 1, SUBEXPFIN_K, (ref_params->wmmat[6] >> GM_ROW3HOMO_PREC_DIFF), (params->wmmat[6] >> GM_ROW3HOMO_PREC_DIFF)); if (type != VERTRAPEZOID) aom_write_signed_primitive_refsubexpfin( w, GM_ROW3HOMO_MAX + 1, SUBEXPFIN_K, (ref_params->wmmat[7] >> GM_ROW3HOMO_PREC_DIFF), (params->wmmat[7] >> GM_ROW3HOMO_PREC_DIFF)); // fallthrough intended case AFFINE: case ROTZOOM: aom_write_signed_primitive_refsubexpfin( w, GM_ALPHA_MAX + 1, SUBEXPFIN_K, (ref_params->wmmat[2] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS), (params->wmmat[2] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS)); if (type != VERTRAPEZOID) aom_write_signed_primitive_refsubexpfin( w, GM_ALPHA_MAX + 1, SUBEXPFIN_K, (ref_params->wmmat[3] >> GM_ALPHA_PREC_DIFF), (params->wmmat[3] >> GM_ALPHA_PREC_DIFF)); if (type >= AFFINE) { if (type != HORTRAPEZOID) aom_write_signed_primitive_refsubexpfin( w, GM_ALPHA_MAX + 1, SUBEXPFIN_K, (ref_params->wmmat[4] >> GM_ALPHA_PREC_DIFF), (params->wmmat[4] >> GM_ALPHA_PREC_DIFF)); aom_write_signed_primitive_refsubexpfin( w, GM_ALPHA_MAX + 1, SUBEXPFIN_K, (ref_params->wmmat[5] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS), (params->wmmat[5] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS)); } // fallthrough intended case TRANSLATION: trans_bits = (type == TRANSLATION) ? GM_ABS_TRANS_ONLY_BITS - !allow_hp : GM_ABS_TRANS_BITS; trans_prec_diff = (type == TRANSLATION) ? GM_TRANS_ONLY_PREC_DIFF + !allow_hp : GM_TRANS_PREC_DIFF; aom_write_signed_primitive_refsubexpfin( w, (1 << trans_bits) + 1, SUBEXPFIN_K, (ref_params->wmmat[0] >> trans_prec_diff), (params->wmmat[0] >> trans_prec_diff)); aom_write_signed_primitive_refsubexpfin( w, (1 << trans_bits) + 1, SUBEXPFIN_K, (ref_params->wmmat[1] >> trans_prec_diff), (params->wmmat[1] >> trans_prec_diff)); break; case IDENTITY: break; default: assert(0); } } static void write_global_motion(AV1_COMP *cpi, aom_writer *w) { AV1_COMMON *const cm = &cpi->common; int frame; for (frame = LAST_FRAME; frame <= ALTREF_FRAME; ++frame) { write_global_motion_params( &cm->global_motion[frame], &cm->prev_frame->global_motion[frame], cm->fc->global_motion_types_prob, w, cm->allow_high_precision_mv); /* printf("Frame %d/%d: Enc Ref %d (used %d): %d %d %d %d\n", cm->current_video_frame, cm->show_frame, frame, cpi->global_motion_used[frame], cm->global_motion[frame].wmmat[0], cm->global_motion[frame].wmmat[1], cm->global_motion[frame].wmmat[2], cm->global_motion[frame].wmmat[3]); */ } } #endif static uint32_t write_compressed_header(AV1_COMP *cpi, uint8_t *data) { AV1_COMMON *const cm = &cpi->common; #if CONFIG_SUPERTX MACROBLOCKD *const xd = &cpi->td.mb.e_mbd; #endif // CONFIG_SUPERTX FRAME_CONTEXT *const fc = cm->fc; FRAME_COUNTS *counts = cpi->td.counts; aom_writer *header_bc; int i, j; #if CONFIG_TILE_GROUPS const int probwt = cm->num_tg; #else const int probwt = 1; #endif #if CONFIG_ANS int header_size; header_bc = &cpi->buf_ans; buf_ans_write_init(header_bc, data); #else aom_writer real_header_bc; header_bc = &real_header_bc; aom_start_encode(header_bc, data); #endif #if CONFIG_LOOP_RESTORATION encode_restoration(cm, header_bc); #endif // CONFIG_LOOP_RESTORATION #if !CONFIG_EC_ADAPT update_txfm_probs(cm, header_bc, counts); #endif #if CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT if (cm->tx_mode == TX_MODE_SELECT) av1_cond_prob_diff_update(header_bc, &cm->fc->quarter_tx_size_prob, cm->counts.quarter_tx_size, probwt); #endif // CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT #if CONFIG_LV_MAP av1_write_txb_probs(cpi, header_bc); #else #if !CONFIG_PVQ #if !CONFIG_EC_ADAPT update_coef_probs(cpi, header_bc); #endif // !CONFIG_EC_ADAPT #endif // CONFIG_PVQ #endif // CONFIG_LV_MAP #if CONFIG_VAR_TX update_txfm_partition_probs(cm, header_bc, counts, probwt); #endif update_skip_probs(cm, header_bc, counts); #if !CONFIG_EC_ADAPT && CONFIG_DELTA_Q update_delta_q_probs(cm, header_bc, counts); #if CONFIG_EXT_DELTA_Q update_delta_lf_probs(cm, header_bc, counts); #endif #endif #if !CONFIG_EC_ADAPT update_seg_probs(cpi, header_bc); for (i = 0; i < INTRA_MODES; ++i) { prob_diff_update(av1_intra_mode_tree, fc->uv_mode_prob[i], counts->uv_mode[i], INTRA_MODES, probwt, header_bc); } #if CONFIG_EXT_PARTITION_TYPES for (i = 0; i < PARTITION_PLOFFSET; ++i) prob_diff_update(av1_partition_tree, fc->partition_prob[i], counts->partition[i], PARTITION_TYPES, probwt, header_bc); for (; i < PARTITION_CONTEXTS_PRIMARY; ++i) prob_diff_update(av1_ext_partition_tree, fc->partition_prob[i], counts->partition[i], EXT_PARTITION_TYPES, probwt, header_bc); #else for (i = 0; i < PARTITION_CONTEXTS_PRIMARY; ++i) prob_diff_update(av1_partition_tree, fc->partition_prob[i], counts->partition[i], PARTITION_TYPES, probwt, header_bc); #endif // CONFIG_EXT_PARTITION_TYPES #if CONFIG_UNPOISON_PARTITION_CTX for (; i < PARTITION_CONTEXTS_PRIMARY + PARTITION_BLOCK_SIZES; ++i) { unsigned int ct[2] = { counts->partition[i][PARTITION_VERT], counts->partition[i][PARTITION_SPLIT] }; assert(counts->partition[i][PARTITION_NONE] == 0); assert(counts->partition[i][PARTITION_HORZ] == 0); assert(fc->partition_prob[i][PARTITION_NONE] == 0); assert(fc->partition_prob[i][PARTITION_HORZ] == 0); av1_cond_prob_diff_update(header_bc, &fc->partition_prob[i][PARTITION_VERT], ct, probwt); } for (; i < PARTITION_CONTEXTS_PRIMARY + 2 * PARTITION_BLOCK_SIZES; ++i) { unsigned int ct[2] = { counts->partition[i][PARTITION_HORZ], counts->partition[i][PARTITION_SPLIT] }; assert(counts->partition[i][PARTITION_NONE] == 0); assert(counts->partition[i][PARTITION_VERT] == 0); assert(fc->partition_prob[i][PARTITION_NONE] == 0); assert(fc->partition_prob[i][PARTITION_VERT] == 0); av1_cond_prob_diff_update(header_bc, &fc->partition_prob[i][PARTITION_HORZ], ct, probwt); } #endif #if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP for (i = 0; i < INTRA_FILTERS + 1; ++i) prob_diff_update(av1_intra_filter_tree, fc->intra_filter_probs[i], counts->intra_filter[i], INTRA_FILTERS, probwt, header_bc); #endif // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP #endif // !CONFIG_EC_ADAPT if (frame_is_intra_only(cm)) { av1_copy(cm->kf_y_prob, av1_kf_y_mode_prob); av1_copy(cm->fc->kf_y_cdf, av1_kf_y_mode_cdf); #if !CONFIG_EC_ADAPT for (i = 0; i < INTRA_MODES; ++i) for (j = 0; j < INTRA_MODES; ++j) prob_diff_update(av1_intra_mode_tree, cm->kf_y_prob[i][j], counts->kf_y_mode[i][j], INTRA_MODES, probwt, header_bc); #endif // CONFIG_EC_ADAPT #if CONFIG_INTRABC if (cm->allow_screen_content_tools) { av1_cond_prob_diff_update(header_bc, &fc->intrabc_prob, cm->counts.intrabc, probwt); } #endif } else { update_inter_mode_probs(cm, header_bc, counts); #if CONFIG_EXT_INTER update_inter_compound_mode_probs(cm, probwt, header_bc); #if CONFIG_INTERINTRA if (cm->reference_mode != COMPOUND_REFERENCE && cm->allow_interintra_compound) { for (i = 0; i < BLOCK_SIZE_GROUPS; i++) { if (is_interintra_allowed_bsize_group(i)) { av1_cond_prob_diff_update(header_bc, &fc->interintra_prob[i], cm->counts.interintra[i], probwt); } } for (i = 0; i < BLOCK_SIZE_GROUPS; i++) { prob_diff_update( av1_interintra_mode_tree, cm->fc->interintra_mode_prob[i], counts->interintra_mode[i], INTERINTRA_MODES, probwt, header_bc); } #if CONFIG_WEDGE for (i = 0; i < BLOCK_SIZES; i++) { if (is_interintra_allowed_bsize(i) && is_interintra_wedge_used(i)) av1_cond_prob_diff_update(header_bc, &fc->wedge_interintra_prob[i], cm->counts.wedge_interintra[i], probwt); } #endif // CONFIG_WEDGE } #endif // CONFIG_INTERINTRA #if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE if (cm->reference_mode != SINGLE_REFERENCE && cm->allow_masked_compound) { for (i = 0; i < BLOCK_SIZES; i++) prob_diff_update(av1_compound_type_tree, fc->compound_type_prob[i], cm->counts.compound_interinter[i], COMPOUND_TYPES, probwt, header_bc); } #endif // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE #endif // CONFIG_EXT_INTER #if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION for (i = BLOCK_8X8; i < BLOCK_SIZES; ++i) prob_diff_update(av1_motion_mode_tree, fc->motion_mode_prob[i], counts->motion_mode[i], MOTION_MODES, probwt, header_bc); #endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION #if !CONFIG_EC_ADAPT if (cm->interp_filter == SWITCHABLE) update_switchable_interp_probs(cm, header_bc, counts); #endif for (i = 0; i < INTRA_INTER_CONTEXTS; i++) av1_cond_prob_diff_update(header_bc, &fc->intra_inter_prob[i], counts->intra_inter[i], probwt); if (cpi->allow_comp_inter_inter) { const int use_hybrid_pred = cm->reference_mode == REFERENCE_MODE_SELECT; if (use_hybrid_pred) for (i = 0; i < COMP_INTER_CONTEXTS; i++) av1_cond_prob_diff_update(header_bc, &fc->comp_inter_prob[i], counts->comp_inter[i], probwt); } if (cm->reference_mode != COMPOUND_REFERENCE) { for (i = 0; i < REF_CONTEXTS; i++) { for (j = 0; j < (SINGLE_REFS - 1); j++) { av1_cond_prob_diff_update(header_bc, &fc->single_ref_prob[i][j], counts->single_ref[i][j], probwt); } } } if (cm->reference_mode != SINGLE_REFERENCE) { for (i = 0; i < REF_CONTEXTS; i++) { #if CONFIG_EXT_REFS for (j = 0; j < (FWD_REFS - 1); j++) { av1_cond_prob_diff_update(header_bc, &fc->comp_ref_prob[i][j], counts->comp_ref[i][j], probwt); } for (j = 0; j < (BWD_REFS - 1); j++) { av1_cond_prob_diff_update(header_bc, &fc->comp_bwdref_prob[i][j], counts->comp_bwdref[i][j], probwt); } #else for (j = 0; j < (COMP_REFS - 1); j++) { av1_cond_prob_diff_update(header_bc, &fc->comp_ref_prob[i][j], counts->comp_ref[i][j], probwt); } #endif // CONFIG_EXT_REFS } } #if !CONFIG_EC_ADAPT for (i = 0; i < BLOCK_SIZE_GROUPS; ++i) { prob_diff_update(av1_intra_mode_tree, cm->fc->y_mode_prob[i], counts->y_mode[i], INTRA_MODES, probwt, header_bc); } #endif av1_write_nmv_probs(cm, cm->allow_high_precision_mv, header_bc, counts->mv); #if !CONFIG_EC_ADAPT update_ext_tx_probs(cm, header_bc); #endif #if CONFIG_SUPERTX if (!xd->lossless[0]) update_supertx_probs(cm, probwt, header_bc); #endif // CONFIG_SUPERTX #if CONFIG_GLOBAL_MOTION write_global_motion(cpi, header_bc); #endif // CONFIG_GLOBAL_MOTION } #if !CONFIG_EC_ADAPT av1_coef_head_cdfs(fc); av1_coef_pareto_cdfs(fc); for (i = 0; i < NMV_CONTEXTS; ++i) av1_set_mv_cdfs(&fc->nmvc[i]); av1_set_mode_cdfs(cm); #endif // !CONFIG_EC_ADAPT #if CONFIG_ANS aom_buf_ans_flush(header_bc); header_size = buf_ans_write_end(header_bc); assert(header_size <= 0xffff); return header_size; #else aom_stop_encode(header_bc); assert(header_bc->pos <= 0xffff); return header_bc->pos; #endif // CONFIG_ANS } static int choose_size_bytes(uint32_t size, int spare_msbs) { // Choose the number of bytes required to represent size, without // using the 'spare_msbs' number of most significant bits. // Make sure we will fit in 4 bytes to start with.. if (spare_msbs > 0 && size >> (32 - spare_msbs) != 0) return -1; // Normalise to 32 bits size <<= spare_msbs; if (size >> 24 != 0) return 4; else if (size >> 16 != 0) return 3; else if (size >> 8 != 0) return 2; else return 1; } static void mem_put_varsize(uint8_t *const dst, const int sz, const int val) { switch (sz) { case 1: dst[0] = (uint8_t)(val & 0xff); break; case 2: mem_put_le16(dst, val); break; case 3: mem_put_le24(dst, val); break; case 4: mem_put_le32(dst, val); break; default: assert(0 && "Invalid size"); break; } } static int remux_tiles(const AV1_COMMON *const cm, uint8_t *dst, const uint32_t data_size, const uint32_t max_tile_size, const uint32_t max_tile_col_size, int *const tile_size_bytes, int *const tile_col_size_bytes) { // Choose the tile size bytes (tsb) and tile column size bytes (tcsb) #if CONFIG_EXT_TILE // The top bit in the tile size field indicates tile copy mode, so we // have 1 less bit to code the tile size const int tsb = choose_size_bytes(max_tile_size, 1); const int tcsb = choose_size_bytes(max_tile_col_size, 0); #else const int tsb = choose_size_bytes(max_tile_size, 0); const int tcsb = 4; // This is ignored (void)max_tile_col_size; #endif // CONFIG_EXT_TILE assert(tsb > 0); assert(tcsb > 0); *tile_size_bytes = tsb; *tile_col_size_bytes = tcsb; if (tsb == 4 && tcsb == 4) { return data_size; } else { uint32_t wpos = 0; uint32_t rpos = 0; #if CONFIG_EXT_TILE int tile_row; int tile_col; for (tile_col = 0; tile_col < cm->tile_cols; tile_col++) { // All but the last column has a column header if (tile_col < cm->tile_cols - 1) { uint32_t tile_col_size = mem_get_le32(dst + rpos); rpos += 4; // Adjust the tile column size by the number of bytes removed // from the tile size fields. tile_col_size -= (4 - tsb) * cm->tile_rows; mem_put_varsize(dst + wpos, tcsb, tile_col_size); wpos += tcsb; } for (tile_row = 0; tile_row < cm->tile_rows; tile_row++) { // All, including the last row has a header uint32_t tile_header = mem_get_le32(dst + rpos); rpos += 4; // If this is a copy tile, we need to shift the MSB to the // top bit of the new width, and there is no data to copy. if (tile_header >> 31 != 0) { if (tsb < 4) tile_header >>= 32 - 8 * tsb; mem_put_varsize(dst + wpos, tsb, tile_header); wpos += tsb; } else { mem_put_varsize(dst + wpos, tsb, tile_header); wpos += tsb; memmove(dst + wpos, dst + rpos, tile_header); rpos += tile_header; wpos += tile_header; } } } #else const int n_tiles = cm->tile_cols * cm->tile_rows; int n; for (n = 0; n < n_tiles; n++) { int tile_size; if (n == n_tiles - 1) { tile_size = data_size - rpos; } else { tile_size = mem_get_le32(dst + rpos); rpos += 4; mem_put_varsize(dst + wpos, tsb, tile_size); wpos += tsb; } memmove(dst + wpos, dst + rpos, tile_size); rpos += tile_size; wpos += tile_size; } #endif // CONFIG_EXT_TILE assert(rpos > wpos); assert(rpos == data_size); return wpos; } } void av1_pack_bitstream(AV1_COMP *const cpi, uint8_t *dst, size_t *size) { uint8_t *data = dst; #if !CONFIG_TILE_GROUPS uint32_t compressed_header_size; uint32_t uncompressed_header_size; struct aom_write_bit_buffer saved_wb; #endif uint32_t data_size; struct aom_write_bit_buffer wb = { data, 0 }; unsigned int max_tile_size; unsigned int max_tile_col_size; #if CONFIG_BITSTREAM_DEBUG bitstream_queue_reset_write(); #endif #if !CONFIG_TILE_GROUPS int tile_size_bytes; int tile_col_size_bytes; AV1_COMMON *const cm = &cpi->common; const int have_tiles = cm->tile_cols * cm->tile_rows > 1; // Write the uncompressed header write_uncompressed_header(cpi, &wb); #if CONFIG_EXT_REFS if (cm->show_existing_frame) { *size = aom_wb_bytes_written(&wb); return; } #endif // CONFIG_EXT_REFS // We do not know these in advance. Output placeholder bit. saved_wb = wb; // Write tile size magnitudes if (have_tiles) { // Note that the last item in the uncompressed header is the data // describing tile configuration. #if CONFIG_EXT_TILE // Number of bytes in tile column size - 1 aom_wb_write_literal(&wb, 0, 2); #endif // CONFIG_EXT_TILE // Number of bytes in tile size - 1 aom_wb_write_literal(&wb, 0, 2); } // Size of compressed header aom_wb_write_literal(&wb, 0, 16); uncompressed_header_size = (uint32_t)aom_wb_bytes_written(&wb); data += uncompressed_header_size; aom_clear_system_state(); // Write the compressed header compressed_header_size = write_compressed_header(cpi, data); data += compressed_header_size; // Write the encoded tile data data_size = write_tiles(cpi, data, &max_tile_size, &max_tile_col_size); #else data_size = write_tiles(cpi, &wb, &max_tile_size, &max_tile_col_size); #endif #if !CONFIG_TILE_GROUPS if (have_tiles) { data_size = remux_tiles(cm, data, data_size, max_tile_size, max_tile_col_size, &tile_size_bytes, &tile_col_size_bytes); } data += data_size; // Now fill in the gaps in the uncompressed header. if (have_tiles) { #if CONFIG_EXT_TILE assert(tile_col_size_bytes >= 1 && tile_col_size_bytes <= 4); aom_wb_write_literal(&saved_wb, tile_col_size_bytes - 1, 2); #endif // CONFIG_EXT_TILE assert(tile_size_bytes >= 1 && tile_size_bytes <= 4); aom_wb_write_literal(&saved_wb, tile_size_bytes - 1, 2); } // TODO(jbb): Figure out what to do if compressed_header_size > 16 bits. assert(compressed_header_size <= 0xffff); aom_wb_write_literal(&saved_wb, compressed_header_size, 16); #else data += data_size; #endif #if CONFIG_ANS && ANS_REVERSE // Avoid aliasing the superframe index *data++ = 0; #endif *size = data - dst; }