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Diffstat (limited to 'media/libaom/src/av1/encoder/encodeframe.c')
| -rw-r--r-- | media/libaom/src/av1/encoder/encodeframe.c | 5739 |
1 files changed, 5739 insertions, 0 deletions
diff --git a/media/libaom/src/av1/encoder/encodeframe.c b/media/libaom/src/av1/encoder/encodeframe.c new file mode 100644 index 000000000..cb226c59e --- /dev/null +++ b/media/libaom/src/av1/encoder/encodeframe.c @@ -0,0 +1,5739 @@ +/* + * 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 <limits.h> +#include <math.h> +#include <stdio.h> + +#include "config/aom_config.h" +#include "config/aom_dsp_rtcd.h" +#include "config/av1_rtcd.h" + +#include "aom_dsp/aom_dsp_common.h" +#include "aom_dsp/binary_codes_writer.h" +#include "aom_ports/mem.h" +#include "aom_ports/aom_timer.h" +#include "aom_ports/system_state.h" + +#if CONFIG_MISMATCH_DEBUG +#include "aom_util/debug_util.h" +#endif // CONFIG_MISMATCH_DEBUG + +#include "av1/common/cfl.h" +#include "av1/common/common.h" +#include "av1/common/entropy.h" +#include "av1/common/entropymode.h" +#include "av1/common/idct.h" +#include "av1/common/mv.h" +#include "av1/common/mvref_common.h" +#include "av1/common/pred_common.h" +#include "av1/common/quant_common.h" +#include "av1/common/reconintra.h" +#include "av1/common/reconinter.h" +#include "av1/common/seg_common.h" +#include "av1/common/tile_common.h" +#include "av1/common/warped_motion.h" + +#include "av1/encoder/aq_complexity.h" +#include "av1/encoder/aq_cyclicrefresh.h" +#include "av1/encoder/aq_variance.h" +#include "av1/encoder/global_motion.h" +#include "av1/encoder/encodeframe.h" +#include "av1/encoder/encodemb.h" +#include "av1/encoder/encodemv.h" +#include "av1/encoder/encodetxb.h" +#include "av1/encoder/ethread.h" +#include "av1/encoder/extend.h" +#include "av1/encoder/ml.h" +#include "av1/encoder/partition_model_weights.h" +#include "av1/encoder/rd.h" +#include "av1/encoder/rdopt.h" +#include "av1/encoder/reconinter_enc.h" +#include "av1/encoder/segmentation.h" +#include "av1/encoder/tokenize.h" + +static void encode_superblock(const AV1_COMP *const cpi, TileDataEnc *tile_data, + ThreadData *td, TOKENEXTRA **t, RUN_TYPE dry_run, + int mi_row, int mi_col, BLOCK_SIZE bsize, + int *rate); + +// This is used as a reference when computing the source variance for the +// purposes of activity masking. +// Eventually this should be replaced by custom no-reference routines, +// which will be faster. +static const uint8_t AV1_VAR_OFFS[MAX_SB_SIZE] = { + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128 +}; + +static const uint16_t AV1_HIGH_VAR_OFFS_8[MAX_SB_SIZE] = { + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128 +}; + +static const uint16_t AV1_HIGH_VAR_OFFS_10[MAX_SB_SIZE] = { + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4 +}; + +static const uint16_t AV1_HIGH_VAR_OFFS_12[MAX_SB_SIZE] = { + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16 +}; + +#if CONFIG_FP_MB_STATS +static const uint8_t num_16x16_blocks_wide_lookup[BLOCK_SIZES_ALL] = { + 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 8, 8, 1, 1, 1, 2, 2, 4 +}; +static const uint8_t num_16x16_blocks_high_lookup[BLOCK_SIZES_ALL] = { + 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 4, 8, 4, 8, 1, 1, 2, 1, 4, 2 +}; +#endif // CONFIG_FP_MB_STATS + +unsigned int av1_get_sby_perpixel_variance(const AV1_COMP *cpi, + const struct buf_2d *ref, + BLOCK_SIZE bs) { + unsigned int sse; + const unsigned int var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, AV1_VAR_OFFS, 0, &sse); + return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]); +} + +unsigned int av1_high_get_sby_perpixel_variance(const AV1_COMP *cpi, + const struct buf_2d *ref, + BLOCK_SIZE bs, int bd) { + unsigned int var, sse; + switch (bd) { + case 10: + var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, + CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_10), 0, &sse); + break; + case 12: + var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, + CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_12), 0, &sse); + break; + case 8: + default: + var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, + CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_8), 0, &sse); + break; + } + return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]); +} + +static unsigned int get_sby_perpixel_diff_variance(const AV1_COMP *const cpi, + const struct buf_2d *ref, + int mi_row, int mi_col, + BLOCK_SIZE bs) { + unsigned int sse, var; + uint8_t *last_y; + const YV12_BUFFER_CONFIG *last = get_ref_frame_buffer(cpi, LAST_FRAME); + + assert(last != NULL); + last_y = + &last->y_buffer[mi_row * MI_SIZE * last->y_stride + mi_col * MI_SIZE]; + var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride, last_y, last->y_stride, &sse); + return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]); +} + +static BLOCK_SIZE get_rd_var_based_fixed_partition(AV1_COMP *cpi, MACROBLOCK *x, + int mi_row, int mi_col) { + unsigned int var = get_sby_perpixel_diff_variance( + cpi, &x->plane[0].src, mi_row, mi_col, BLOCK_64X64); + if (var < 8) + return BLOCK_64X64; + else if (var < 128) + return BLOCK_32X32; + else if (var < 2048) + return BLOCK_16X16; + else + return BLOCK_8X8; +} + +// Lighter version of set_offsets that only sets the mode info +// pointers. +static void set_mode_info_offsets(const AV1_COMP *const cpi, + MACROBLOCK *const x, MACROBLOCKD *const xd, + int mi_row, int mi_col) { + const AV1_COMMON *const cm = &cpi->common; + const int idx_str = xd->mi_stride * mi_row + mi_col; + xd->mi = cm->mi_grid_visible + idx_str; + xd->mi[0] = cm->mi + idx_str; + x->mbmi_ext = cpi->mbmi_ext_base + (mi_row * cm->mi_cols + mi_col); +} + +static void set_offsets_without_segment_id(const AV1_COMP *const cpi, + const TileInfo *const tile, + MACROBLOCK *const x, int mi_row, + int mi_col, BLOCK_SIZE bsize) { + const AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + MACROBLOCKD *const xd = &x->e_mbd; + const int mi_width = mi_size_wide[bsize]; + const int mi_height = mi_size_high[bsize]; + + set_mode_info_offsets(cpi, x, xd, mi_row, mi_col); + + set_skip_context(xd, mi_row, mi_col, num_planes); + xd->above_txfm_context = cm->above_txfm_context[tile->tile_row] + mi_col; + xd->left_txfm_context = + xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); + + // Set up destination pointers. + av1_setup_dst_planes(xd->plane, bsize, get_frame_new_buffer(cm), mi_row, + mi_col, 0, num_planes); + + // Set up limit values for MV components. + // Mv beyond the range do not produce new/different prediction block. + x->mv_limits.row_min = + -(((mi_row + mi_height) * MI_SIZE) + AOM_INTERP_EXTEND); + x->mv_limits.col_min = -(((mi_col + mi_width) * MI_SIZE) + AOM_INTERP_EXTEND); + x->mv_limits.row_max = (cm->mi_rows - mi_row) * MI_SIZE + AOM_INTERP_EXTEND; + x->mv_limits.col_max = (cm->mi_cols - mi_col) * MI_SIZE + AOM_INTERP_EXTEND; + + set_plane_n4(xd, mi_width, mi_height, num_planes); + + // Set up distance of MB to edge of frame in 1/8th pel units. + assert(!(mi_col & (mi_width - 1)) && !(mi_row & (mi_height - 1))); + set_mi_row_col(xd, tile, mi_row, mi_height, mi_col, mi_width, cm->mi_rows, + cm->mi_cols); + + // Set up source buffers. + av1_setup_src_planes(x, cpi->source, mi_row, mi_col, num_planes); + + // R/D setup. + x->rdmult = cpi->rd.RDMULT; + + // required by av1_append_sub8x8_mvs_for_idx() and av1_find_best_ref_mvs() + xd->tile = *tile; +} + +static void set_offsets(const AV1_COMP *const cpi, const TileInfo *const tile, + MACROBLOCK *const x, int mi_row, int mi_col, + BLOCK_SIZE bsize) { + const AV1_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *mbmi; + const struct segmentation *const seg = &cm->seg; + + set_offsets_without_segment_id(cpi, tile, x, mi_row, mi_col, bsize); + + mbmi = xd->mi[0]; + xd->cfl.mi_row = mi_row; + xd->cfl.mi_col = mi_col; + + mbmi->segment_id = 0; + + // Setup segment ID. + if (seg->enabled) { + if (seg->enabled && !cpi->vaq_refresh) { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + mbmi->segment_id = + map ? get_segment_id(cm, map, bsize, mi_row, mi_col) : 0; + } + av1_init_plane_quantizers(cpi, x, mbmi->segment_id); + } +} + +static void reset_intmv_filter_type(MB_MODE_INFO *mbmi) { + InterpFilter filters[2]; + + for (int dir = 0; dir < 2; ++dir) { + filters[dir] = av1_extract_interp_filter(mbmi->interp_filters, dir); + } + mbmi->interp_filters = av1_make_interp_filters(filters[0], filters[1]); +} + +static void update_filter_type_count(uint8_t allow_update_cdf, + FRAME_COUNTS *counts, + const MACROBLOCKD *xd, + const MB_MODE_INFO *mbmi) { + int dir; + for (dir = 0; dir < 2; ++dir) { + const int ctx = av1_get_pred_context_switchable_interp(xd, dir); + InterpFilter filter = av1_extract_interp_filter(mbmi->interp_filters, dir); + ++counts->switchable_interp[ctx][filter]; + if (allow_update_cdf) { + update_cdf(xd->tile_ctx->switchable_interp_cdf[ctx], filter, + SWITCHABLE_FILTERS); + } + } +} + +static void update_global_motion_used(PREDICTION_MODE mode, BLOCK_SIZE bsize, + const MB_MODE_INFO *mbmi, + RD_COUNTS *rdc) { + if (mode == GLOBALMV || mode == GLOBAL_GLOBALMV) { + const int num_4x4s = mi_size_wide[bsize] * mi_size_high[bsize]; + int ref; + for (ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) { + rdc->global_motion_used[mbmi->ref_frame[ref]] += num_4x4s; + } + } +} + +static void reset_tx_size(MACROBLOCK *x, MB_MODE_INFO *mbmi, + const TX_MODE tx_mode) { + MACROBLOCKD *const xd = &x->e_mbd; + if (xd->lossless[mbmi->segment_id]) { + mbmi->tx_size = TX_4X4; + } else if (tx_mode != TX_MODE_SELECT) { + mbmi->tx_size = tx_size_from_tx_mode(mbmi->sb_type, tx_mode); + } else { + BLOCK_SIZE bsize = mbmi->sb_type; + TX_SIZE min_tx_size = depth_to_tx_size(MAX_TX_DEPTH, bsize); + mbmi->tx_size = (TX_SIZE)TXSIZEMAX(mbmi->tx_size, min_tx_size); + } + if (is_inter_block(mbmi)) { + memset(mbmi->inter_tx_size, mbmi->tx_size, sizeof(mbmi->inter_tx_size)); + } + memset(mbmi->txk_type, DCT_DCT, sizeof(mbmi->txk_type[0]) * TXK_TYPE_BUF_LEN); + av1_zero(x->blk_skip); + x->skip = 0; +} + +static void update_state(const AV1_COMP *const cpi, + const TileDataEnc *const tile_data, ThreadData *td, + const PICK_MODE_CONTEXT *const ctx, int mi_row, + int mi_col, BLOCK_SIZE bsize, RUN_TYPE dry_run) { + int i, x_idx, y; + const AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + RD_COUNTS *const rdc = &td->rd_counts; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + struct macroblock_plane *const p = x->plane; + struct macroblockd_plane *const pd = xd->plane; + const MB_MODE_INFO *const mi = &ctx->mic; + MB_MODE_INFO *const mi_addr = xd->mi[0]; + const struct segmentation *const seg = &cm->seg; + const int bw = mi_size_wide[mi->sb_type]; + const int bh = mi_size_high[mi->sb_type]; + const int mis = cm->mi_stride; + const int mi_width = mi_size_wide[bsize]; + const int mi_height = mi_size_high[bsize]; + + assert(mi->sb_type == bsize); + + *mi_addr = *mi; + *x->mbmi_ext = ctx->mbmi_ext; + + reset_intmv_filter_type(mi_addr); + + memcpy(x->blk_skip, ctx->blk_skip, sizeof(x->blk_skip[0]) * ctx->num_4x4_blk); + + x->skip = ctx->skip; + + // If segmentation in use + if (seg->enabled) { + // For in frame complexity AQ copy the segment id from the segment map. + if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + mi_addr->segment_id = + map ? get_segment_id(cm, map, bsize, mi_row, mi_col) : 0; + reset_tx_size(x, mi_addr, cm->tx_mode); + } + // Else for cyclic refresh mode update the segment map, set the segment id + // and then update the quantizer. + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) { + av1_cyclic_refresh_update_segment(cpi, mi_addr, mi_row, mi_col, bsize, + ctx->rate, ctx->dist, x->skip); + reset_tx_size(x, mi_addr, cm->tx_mode); + } + if (mi_addr->uv_mode == UV_CFL_PRED && !is_cfl_allowed(xd)) + mi_addr->uv_mode = UV_DC_PRED; + } + + for (i = 0; i < num_planes; ++i) { + p[i].coeff = ctx->coeff[i]; + p[i].qcoeff = ctx->qcoeff[i]; + pd[i].dqcoeff = ctx->dqcoeff[i]; + p[i].eobs = ctx->eobs[i]; + p[i].txb_entropy_ctx = ctx->txb_entropy_ctx[i]; + } + for (i = 0; i < 2; ++i) pd[i].color_index_map = ctx->color_index_map[i]; + // Restore the coding context of the MB to that that was in place + // when the mode was picked for it + for (y = 0; y < mi_height; y++) + for (x_idx = 0; x_idx < mi_width; x_idx++) + if ((xd->mb_to_right_edge >> (3 + MI_SIZE_LOG2)) + mi_width > x_idx && + (xd->mb_to_bottom_edge >> (3 + MI_SIZE_LOG2)) + mi_height > y) { + xd->mi[x_idx + y * mis] = mi_addr; + } + + if (cpi->oxcf.aq_mode) av1_init_plane_quantizers(cpi, x, mi_addr->segment_id); + + if (dry_run) return; + +#if CONFIG_INTERNAL_STATS + { + unsigned int *const mode_chosen_counts = + (unsigned int *)cpi->mode_chosen_counts; // Cast const away. + if (frame_is_intra_only(cm)) { + static const int kf_mode_index[] = { + THR_DC /*DC_PRED*/, + THR_V_PRED /*V_PRED*/, + THR_H_PRED /*H_PRED*/, + THR_D45_PRED /*D45_PRED*/, + THR_D135_PRED /*D135_PRED*/, + THR_D113_PRED /*D113_PRED*/, + THR_D157_PRED /*D157_PRED*/, + THR_D203_PRED /*D203_PRED*/, + THR_D67_PRED /*D67_PRED*/, + THR_SMOOTH, /*SMOOTH_PRED*/ + THR_SMOOTH_V, /*SMOOTH_V_PRED*/ + THR_SMOOTH_H, /*SMOOTH_H_PRED*/ + THR_PAETH /*PAETH_PRED*/, + }; + ++mode_chosen_counts[kf_mode_index[mi_addr->mode]]; + } else { + // Note how often each mode chosen as best + ++mode_chosen_counts[ctx->best_mode_index]; + } + } +#endif + if (!frame_is_intra_only(cm)) { + if (is_inter_block(mi_addr)) { + // TODO(sarahparker): global motion stats need to be handled per-tile + // to be compatible with tile-based threading. + update_global_motion_used(mi_addr->mode, bsize, mi_addr, rdc); + } + + if (cm->interp_filter == SWITCHABLE && + mi_addr->motion_mode != WARPED_CAUSAL && + !is_nontrans_global_motion(xd, xd->mi[0])) { + update_filter_type_count(tile_data->allow_update_cdf, td->counts, xd, + mi_addr); + } + + rdc->comp_pred_diff[SINGLE_REFERENCE] += ctx->single_pred_diff; + rdc->comp_pred_diff[COMPOUND_REFERENCE] += ctx->comp_pred_diff; + rdc->comp_pred_diff[REFERENCE_MODE_SELECT] += ctx->hybrid_pred_diff; + } + + const int x_mis = AOMMIN(bw, cm->mi_cols - mi_col); + const int y_mis = AOMMIN(bh, cm->mi_rows - mi_row); + av1_copy_frame_mvs(cm, mi, mi_row, mi_col, x_mis, y_mis); +} + +void av1_setup_src_planes(MACROBLOCK *x, const YV12_BUFFER_CONFIG *src, + int mi_row, int mi_col, const int num_planes) { + // Set current frame pointer. + x->e_mbd.cur_buf = src; + + // We use AOMMIN(num_planes, MAX_MB_PLANE) instead of num_planes to quiet + // the static analysis warnings. + for (int i = 0; i < AOMMIN(num_planes, MAX_MB_PLANE); i++) { + const int is_uv = i > 0; + setup_pred_plane(&x->plane[i].src, x->e_mbd.mi[0]->sb_type, src->buffers[i], + src->crop_widths[is_uv], src->crop_heights[is_uv], + src->strides[is_uv], mi_row, mi_col, NULL, + x->e_mbd.plane[i].subsampling_x, + x->e_mbd.plane[i].subsampling_y); + } +} + +static int set_segment_rdmult(const AV1_COMP *const cpi, MACROBLOCK *const x, + int8_t segment_id) { + const AV1_COMMON *const cm = &cpi->common; + av1_init_plane_quantizers(cpi, x, segment_id); + aom_clear_system_state(); + int segment_qindex = av1_get_qindex(&cm->seg, segment_id, cm->base_qindex); + return av1_compute_rd_mult(cpi, segment_qindex + cm->y_dc_delta_q); +} + +static int set_deltaq_rdmult(const AV1_COMP *const cpi, MACROBLOCKD *const xd) { + const AV1_COMMON *const cm = &cpi->common; + + return av1_compute_rd_mult( + cpi, cm->base_qindex + xd->delta_qindex + cm->y_dc_delta_q); +} + +static void rd_pick_sb_modes(AV1_COMP *const cpi, TileDataEnc *tile_data, + MACROBLOCK *const x, int mi_row, int mi_col, + RD_STATS *rd_cost, PARTITION_TYPE partition, + BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx, + int64_t best_rd) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *mbmi; + MB_MODE_INFO *ctx_mbmi = &ctx->mic; + struct macroblock_plane *const p = x->plane; + struct macroblockd_plane *const pd = xd->plane; + const AQ_MODE aq_mode = cpi->oxcf.aq_mode; + const DELTAQ_MODE deltaq_mode = cpi->oxcf.deltaq_mode; + int i, orig_rdmult; + + if (best_rd < 0) { + ctx->rdcost = INT64_MAX; + ctx->skip = 0; + av1_invalid_rd_stats(rd_cost); + return; + } + + aom_clear_system_state(); + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + + mbmi = xd->mi[0]; + + if (ctx->rd_mode_is_ready) { + assert(ctx_mbmi->sb_type == bsize); + assert(ctx_mbmi->partition == partition); + *mbmi = *ctx_mbmi; + rd_cost->rate = ctx->rate; + rd_cost->dist = ctx->dist; + rd_cost->rdcost = ctx->rdcost; + } else { + mbmi->sb_type = bsize; + mbmi->partition = partition; + } + +#if CONFIG_RD_DEBUG + mbmi->mi_row = mi_row; + mbmi->mi_col = mi_col; +#endif + + for (i = 0; i < num_planes; ++i) { + p[i].coeff = ctx->coeff[i]; + p[i].qcoeff = ctx->qcoeff[i]; + pd[i].dqcoeff = ctx->dqcoeff[i]; + p[i].eobs = ctx->eobs[i]; + p[i].txb_entropy_ctx = ctx->txb_entropy_ctx[i]; + } + + for (i = 0; i < 2; ++i) pd[i].color_index_map = ctx->color_index_map[i]; + + if (!ctx->rd_mode_is_ready) { + ctx->skippable = 0; + + // Set to zero to make sure we do not use the previous encoded frame stats + mbmi->skip = 0; + + // Reset skip mode flag. + mbmi->skip_mode = 0; + } + + x->skip_chroma_rd = + !is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x, + xd->plane[1].subsampling_y); + + if (ctx->rd_mode_is_ready) { + x->skip = ctx->skip; + *x->mbmi_ext = ctx->mbmi_ext; + return; + } + + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + x->source_variance = av1_high_get_sby_perpixel_variance( + cpi, &x->plane[0].src, bsize, xd->bd); + } else { + x->source_variance = + av1_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize); + } + + // Save rdmult before it might be changed, so it can be restored later. + orig_rdmult = x->rdmult; + + if (aq_mode == VARIANCE_AQ) { + if (cpi->vaq_refresh) { + const int energy = bsize <= BLOCK_16X16 + ? x->mb_energy + : av1_log_block_var(cpi, x, bsize); + mbmi->segment_id = energy; + } + x->rdmult = set_segment_rdmult(cpi, x, mbmi->segment_id); + } else if (aq_mode == COMPLEXITY_AQ) { + x->rdmult = set_segment_rdmult(cpi, x, mbmi->segment_id); + } else if (aq_mode == CYCLIC_REFRESH_AQ) { + // If segment is boosted, use rdmult for that segment. + if (cyclic_refresh_segment_id_boosted(mbmi->segment_id)) + x->rdmult = av1_cyclic_refresh_get_rdmult(cpi->cyclic_refresh); + } + + if (deltaq_mode > 0) x->rdmult = set_deltaq_rdmult(cpi, xd); + + // Find best coding mode & reconstruct the MB so it is available + // as a predictor for MBs that follow in the SB + if (frame_is_intra_only(cm)) { + av1_rd_pick_intra_mode_sb(cpi, x, mi_row, mi_col, rd_cost, bsize, ctx, + best_rd); + } else { + if (segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { + av1_rd_pick_inter_mode_sb_seg_skip(cpi, tile_data, x, mi_row, mi_col, + rd_cost, bsize, ctx, best_rd); + } else { + av1_rd_pick_inter_mode_sb(cpi, tile_data, x, mi_row, mi_col, rd_cost, + bsize, ctx, best_rd); + } + } + + // Examine the resulting rate and for AQ mode 2 make a segment choice. + if ((rd_cost->rate != INT_MAX) && (aq_mode == COMPLEXITY_AQ) && + (bsize >= BLOCK_16X16) && + (cm->frame_type == KEY_FRAME || cpi->refresh_alt_ref_frame || + cpi->refresh_alt2_ref_frame || + (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref))) { + av1_caq_select_segment(cpi, x, bsize, mi_row, mi_col, rd_cost->rate); + } + + x->rdmult = orig_rdmult; + + // TODO(jingning) The rate-distortion optimization flow needs to be + // refactored to provide proper exit/return handle. + if (rd_cost->rate == INT_MAX) rd_cost->rdcost = INT64_MAX; + + ctx->rate = rd_cost->rate; + ctx->dist = rd_cost->dist; + ctx->rdcost = rd_cost->rdcost; +} + +static void update_inter_mode_stats(FRAME_CONTEXT *fc, FRAME_COUNTS *counts, + PREDICTION_MODE mode, int16_t mode_context, + uint8_t allow_update_cdf) { + (void)counts; + + int16_t mode_ctx = mode_context & NEWMV_CTX_MASK; + if (mode == NEWMV) { +#if CONFIG_ENTROPY_STATS + ++counts->newmv_mode[mode_ctx][0]; +#endif + if (allow_update_cdf) update_cdf(fc->newmv_cdf[mode_ctx], 0, 2); + return; + } else { +#if CONFIG_ENTROPY_STATS + ++counts->newmv_mode[mode_ctx][1]; +#endif + if (allow_update_cdf) update_cdf(fc->newmv_cdf[mode_ctx], 1, 2); + + mode_ctx = (mode_context >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK; + if (mode == GLOBALMV) { +#if CONFIG_ENTROPY_STATS + ++counts->zeromv_mode[mode_ctx][0]; +#endif + if (allow_update_cdf) update_cdf(fc->zeromv_cdf[mode_ctx], 0, 2); + return; + } else { +#if CONFIG_ENTROPY_STATS + ++counts->zeromv_mode[mode_ctx][1]; +#endif + if (allow_update_cdf) update_cdf(fc->zeromv_cdf[mode_ctx], 1, 2); + mode_ctx = (mode_context >> REFMV_OFFSET) & REFMV_CTX_MASK; +#if CONFIG_ENTROPY_STATS + ++counts->refmv_mode[mode_ctx][mode != NEARESTMV]; +#endif + if (allow_update_cdf) + update_cdf(fc->refmv_cdf[mode_ctx], mode != NEARESTMV, 2); + } + } +} + +static void update_palette_cdf(MACROBLOCKD *xd, const MB_MODE_INFO *const mbmi, + FRAME_COUNTS *counts, uint8_t allow_update_cdf) { + FRAME_CONTEXT *fc = xd->tile_ctx; + const BLOCK_SIZE bsize = mbmi->sb_type; + const PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info; + const int palette_bsize_ctx = av1_get_palette_bsize_ctx(bsize); + + (void)counts; + + if (mbmi->mode == DC_PRED) { + const int n = pmi->palette_size[0]; + const int palette_mode_ctx = av1_get_palette_mode_ctx(xd); + +#if CONFIG_ENTROPY_STATS + ++counts->palette_y_mode[palette_bsize_ctx][palette_mode_ctx][n > 0]; +#endif + if (allow_update_cdf) + update_cdf(fc->palette_y_mode_cdf[palette_bsize_ctx][palette_mode_ctx], + n > 0, 2); + if (n > 0) { +#if CONFIG_ENTROPY_STATS + ++counts->palette_y_size[palette_bsize_ctx][n - PALETTE_MIN_SIZE]; +#endif + if (allow_update_cdf) { + update_cdf(fc->palette_y_size_cdf[palette_bsize_ctx], + n - PALETTE_MIN_SIZE, PALETTE_SIZES); + } + } + } + + if (mbmi->uv_mode == UV_DC_PRED) { + const int n = pmi->palette_size[1]; + const int palette_uv_mode_ctx = (pmi->palette_size[0] > 0); + +#if CONFIG_ENTROPY_STATS + ++counts->palette_uv_mode[palette_uv_mode_ctx][n > 0]; +#endif + if (allow_update_cdf) + update_cdf(fc->palette_uv_mode_cdf[palette_uv_mode_ctx], n > 0, 2); + + if (n > 0) { +#if CONFIG_ENTROPY_STATS + ++counts->palette_uv_size[palette_bsize_ctx][n - PALETTE_MIN_SIZE]; +#endif + if (allow_update_cdf) { + update_cdf(fc->palette_uv_size_cdf[palette_bsize_ctx], + n - PALETTE_MIN_SIZE, PALETTE_SIZES); + } + } + } +} + +static void sum_intra_stats(const AV1_COMMON *const cm, FRAME_COUNTS *counts, + MACROBLOCKD *xd, const MB_MODE_INFO *const mbmi, + const MB_MODE_INFO *above_mi, + const MB_MODE_INFO *left_mi, const int intraonly, + const int mi_row, const int mi_col, + uint8_t allow_update_cdf) { + FRAME_CONTEXT *fc = xd->tile_ctx; + const PREDICTION_MODE y_mode = mbmi->mode; + const UV_PREDICTION_MODE uv_mode = mbmi->uv_mode; + (void)counts; + const BLOCK_SIZE bsize = mbmi->sb_type; + + if (intraonly) { +#if CONFIG_ENTROPY_STATS + const PREDICTION_MODE above = av1_above_block_mode(above_mi); + const PREDICTION_MODE left = av1_left_block_mode(left_mi); + const int above_ctx = intra_mode_context[above]; + const int left_ctx = intra_mode_context[left]; + ++counts->kf_y_mode[above_ctx][left_ctx][y_mode]; +#endif // CONFIG_ENTROPY_STATS + if (allow_update_cdf) + update_cdf(get_y_mode_cdf(fc, above_mi, left_mi), y_mode, INTRA_MODES); + } else { +#if CONFIG_ENTROPY_STATS + ++counts->y_mode[size_group_lookup[bsize]][y_mode]; +#endif // CONFIG_ENTROPY_STATS + if (allow_update_cdf) + update_cdf(fc->y_mode_cdf[size_group_lookup[bsize]], y_mode, INTRA_MODES); + } + + if (av1_filter_intra_allowed(cm, mbmi)) { + const int use_filter_intra_mode = + mbmi->filter_intra_mode_info.use_filter_intra; +#if CONFIG_ENTROPY_STATS + ++counts->filter_intra[mbmi->sb_type][use_filter_intra_mode]; + if (use_filter_intra_mode) { + ++counts + ->filter_intra_mode[mbmi->filter_intra_mode_info.filter_intra_mode]; + } +#endif // CONFIG_ENTROPY_STATS + if (allow_update_cdf) { + update_cdf(fc->filter_intra_cdfs[mbmi->sb_type], use_filter_intra_mode, + 2); + if (use_filter_intra_mode) { + update_cdf(fc->filter_intra_mode_cdf, + mbmi->filter_intra_mode_info.filter_intra_mode, + FILTER_INTRA_MODES); + } + } + } + if (av1_is_directional_mode(mbmi->mode) && av1_use_angle_delta(bsize)) { +#if CONFIG_ENTROPY_STATS + ++counts->angle_delta[mbmi->mode - V_PRED] + [mbmi->angle_delta[PLANE_TYPE_Y] + MAX_ANGLE_DELTA]; +#endif + if (allow_update_cdf) { + update_cdf(fc->angle_delta_cdf[mbmi->mode - V_PRED], + mbmi->angle_delta[PLANE_TYPE_Y] + MAX_ANGLE_DELTA, + 2 * MAX_ANGLE_DELTA + 1); + } + } + + if (!is_chroma_reference(mi_row, mi_col, bsize, + xd->plane[AOM_PLANE_U].subsampling_x, + xd->plane[AOM_PLANE_U].subsampling_y)) + return; + +#if CONFIG_ENTROPY_STATS + ++counts->uv_mode[is_cfl_allowed(xd)][y_mode][uv_mode]; +#endif // CONFIG_ENTROPY_STATS + if (allow_update_cdf) { + const CFL_ALLOWED_TYPE cfl_allowed = is_cfl_allowed(xd); + update_cdf(fc->uv_mode_cdf[cfl_allowed][y_mode], uv_mode, + UV_INTRA_MODES - !cfl_allowed); + } + if (uv_mode == UV_CFL_PRED) { + const int joint_sign = mbmi->cfl_alpha_signs; + const int idx = mbmi->cfl_alpha_idx; + +#if CONFIG_ENTROPY_STATS + ++counts->cfl_sign[joint_sign]; +#endif + if (allow_update_cdf) + update_cdf(fc->cfl_sign_cdf, joint_sign, CFL_JOINT_SIGNS); + if (CFL_SIGN_U(joint_sign) != CFL_SIGN_ZERO) { + aom_cdf_prob *cdf_u = fc->cfl_alpha_cdf[CFL_CONTEXT_U(joint_sign)]; + +#if CONFIG_ENTROPY_STATS + ++counts->cfl_alpha[CFL_CONTEXT_U(joint_sign)][CFL_IDX_U(idx)]; +#endif + if (allow_update_cdf) + update_cdf(cdf_u, CFL_IDX_U(idx), CFL_ALPHABET_SIZE); + } + if (CFL_SIGN_V(joint_sign) != CFL_SIGN_ZERO) { + aom_cdf_prob *cdf_v = fc->cfl_alpha_cdf[CFL_CONTEXT_V(joint_sign)]; + +#if CONFIG_ENTROPY_STATS + ++counts->cfl_alpha[CFL_CONTEXT_V(joint_sign)][CFL_IDX_V(idx)]; +#endif + if (allow_update_cdf) + update_cdf(cdf_v, CFL_IDX_V(idx), CFL_ALPHABET_SIZE); + } + } + if (av1_is_directional_mode(get_uv_mode(uv_mode)) && + av1_use_angle_delta(bsize)) { +#if CONFIG_ENTROPY_STATS + ++counts->angle_delta[uv_mode - UV_V_PRED] + [mbmi->angle_delta[PLANE_TYPE_UV] + MAX_ANGLE_DELTA]; +#endif + if (allow_update_cdf) { + update_cdf(fc->angle_delta_cdf[uv_mode - UV_V_PRED], + mbmi->angle_delta[PLANE_TYPE_UV] + MAX_ANGLE_DELTA, + 2 * MAX_ANGLE_DELTA + 1); + } + } + if (av1_allow_palette(cm->allow_screen_content_tools, bsize)) + update_palette_cdf(xd, mbmi, counts, allow_update_cdf); +} + +static void update_stats(const AV1_COMMON *const cm, TileDataEnc *tile_data, + ThreadData *td, int mi_row, int mi_col) { + MACROBLOCK *x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const MB_MODE_INFO *const mbmi = xd->mi[0]; + const MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext; + const BLOCK_SIZE bsize = mbmi->sb_type; + FRAME_CONTEXT *fc = xd->tile_ctx; + const uint8_t allow_update_cdf = tile_data->allow_update_cdf; + + // delta quant applies to both intra and inter + const int super_block_upper_left = + ((mi_row & (cm->seq_params.mib_size - 1)) == 0) && + ((mi_col & (cm->seq_params.mib_size - 1)) == 0); + + const int seg_ref_active = + segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_REF_FRAME); + + if (cm->skip_mode_flag && !seg_ref_active && is_comp_ref_allowed(bsize)) { + const int skip_mode_ctx = av1_get_skip_mode_context(xd); +#if CONFIG_ENTROPY_STATS + td->counts->skip_mode[skip_mode_ctx][mbmi->skip_mode]++; +#endif + if (allow_update_cdf) + update_cdf(fc->skip_mode_cdfs[skip_mode_ctx], mbmi->skip_mode, 2); + } + + if (!mbmi->skip_mode) { + if (!seg_ref_active) { + const int skip_ctx = av1_get_skip_context(xd); +#if CONFIG_ENTROPY_STATS + td->counts->skip[skip_ctx][mbmi->skip]++; +#endif + if (allow_update_cdf) update_cdf(fc->skip_cdfs[skip_ctx], mbmi->skip, 2); + } + } + + if (cm->delta_q_present_flag && + (bsize != cm->seq_params.sb_size || !mbmi->skip) && + super_block_upper_left) { +#if CONFIG_ENTROPY_STATS + const int dq = + (mbmi->current_qindex - xd->current_qindex) / cm->delta_q_res; + const int absdq = abs(dq); + for (int i = 0; i < AOMMIN(absdq, DELTA_Q_SMALL); ++i) { + td->counts->delta_q[i][1]++; + } + if (absdq < DELTA_Q_SMALL) td->counts->delta_q[absdq][0]++; +#endif + xd->current_qindex = mbmi->current_qindex; + if (cm->delta_lf_present_flag) { + if (cm->delta_lf_multi) { + const int frame_lf_count = + av1_num_planes(cm) > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2; + for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) { +#if CONFIG_ENTROPY_STATS + const int delta_lf = + (mbmi->delta_lf[lf_id] - xd->delta_lf[lf_id]) / cm->delta_lf_res; + const int abs_delta_lf = abs(delta_lf); + for (int i = 0; i < AOMMIN(abs_delta_lf, DELTA_LF_SMALL); ++i) { + td->counts->delta_lf_multi[lf_id][i][1]++; + } + if (abs_delta_lf < DELTA_LF_SMALL) + td->counts->delta_lf_multi[lf_id][abs_delta_lf][0]++; +#endif + xd->delta_lf[lf_id] = mbmi->delta_lf[lf_id]; + } + } else { +#if CONFIG_ENTROPY_STATS + const int delta_lf = + (mbmi->delta_lf_from_base - xd->delta_lf_from_base) / + cm->delta_lf_res; + const int abs_delta_lf = abs(delta_lf); + for (int i = 0; i < AOMMIN(abs_delta_lf, DELTA_LF_SMALL); ++i) { + td->counts->delta_lf[i][1]++; + } + if (abs_delta_lf < DELTA_LF_SMALL) + td->counts->delta_lf[abs_delta_lf][0]++; +#endif + xd->delta_lf_from_base = mbmi->delta_lf_from_base; + } + } + } + + if (!is_inter_block(mbmi)) { + sum_intra_stats(cm, td->counts, xd, mbmi, xd->above_mbmi, xd->left_mbmi, + frame_is_intra_only(cm), mi_row, mi_col, + tile_data->allow_update_cdf); + } + + if (av1_allow_intrabc(cm)) { + if (allow_update_cdf) + update_cdf(fc->intrabc_cdf, is_intrabc_block(mbmi), 2); +#if CONFIG_ENTROPY_STATS + ++td->counts->intrabc[is_intrabc_block(mbmi)]; +#endif // CONFIG_ENTROPY_STATS + } + + if (!frame_is_intra_only(cm)) { + RD_COUNTS *rdc = &td->rd_counts; + + FRAME_COUNTS *const counts = td->counts; + + if (mbmi->skip_mode) { + rdc->skip_mode_used_flag = 1; + if (cm->reference_mode == REFERENCE_MODE_SELECT) { + assert(has_second_ref(mbmi)); + rdc->compound_ref_used_flag = 1; + } + set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); + return; + } + + const int inter_block = is_inter_block(mbmi); + + if (!seg_ref_active) { +#if CONFIG_ENTROPY_STATS + counts->intra_inter[av1_get_intra_inter_context(xd)][inter_block]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->intra_inter_cdf[av1_get_intra_inter_context(xd)], + inter_block, 2); + } + // If the segment reference feature is enabled we have only a single + // reference frame allowed for the segment so exclude it from + // the reference frame counts used to work out probabilities. + if (inter_block) { + const MV_REFERENCE_FRAME ref0 = mbmi->ref_frame[0]; + const MV_REFERENCE_FRAME ref1 = mbmi->ref_frame[1]; + + av1_collect_neighbors_ref_counts(xd); + + if (cm->reference_mode == REFERENCE_MODE_SELECT) { + if (has_second_ref(mbmi)) + // This flag is also updated for 4x4 blocks + rdc->compound_ref_used_flag = 1; + if (is_comp_ref_allowed(bsize)) { +#if CONFIG_ENTROPY_STATS + counts->comp_inter[av1_get_reference_mode_context(xd)] + [has_second_ref(mbmi)]++; +#endif // CONFIG_ENTROPY_STATS + if (allow_update_cdf) { + update_cdf(av1_get_reference_mode_cdf(xd), has_second_ref(mbmi), + 2); + } + } + } + + if (has_second_ref(mbmi)) { + const COMP_REFERENCE_TYPE comp_ref_type = has_uni_comp_refs(mbmi) + ? UNIDIR_COMP_REFERENCE + : BIDIR_COMP_REFERENCE; + if (allow_update_cdf) { + update_cdf(av1_get_comp_reference_type_cdf(xd), comp_ref_type, + COMP_REFERENCE_TYPES); + } +#if CONFIG_ENTROPY_STATS + counts->comp_ref_type[av1_get_comp_reference_type_context(xd)] + [comp_ref_type]++; +#endif // CONFIG_ENTROPY_STATS + + if (comp_ref_type == UNIDIR_COMP_REFERENCE) { + const int bit = (ref0 == BWDREF_FRAME); + if (allow_update_cdf) + update_cdf(av1_get_pred_cdf_uni_comp_ref_p(xd), bit, 2); +#if CONFIG_ENTROPY_STATS + counts->uni_comp_ref[av1_get_pred_context_uni_comp_ref_p(xd)][0] + [bit]++; +#endif // CONFIG_ENTROPY_STATS + if (!bit) { + const int bit1 = (ref1 == LAST3_FRAME || ref1 == GOLDEN_FRAME); + if (allow_update_cdf) + update_cdf(av1_get_pred_cdf_uni_comp_ref_p1(xd), bit1, 2); +#if CONFIG_ENTROPY_STATS + counts->uni_comp_ref[av1_get_pred_context_uni_comp_ref_p1(xd)][1] + [bit1]++; +#endif // CONFIG_ENTROPY_STATS + if (bit1) { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_uni_comp_ref_p2(xd), + ref1 == GOLDEN_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->uni_comp_ref[av1_get_pred_context_uni_comp_ref_p2(xd)] + [2][ref1 == GOLDEN_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } + } + } else { + const int bit = (ref0 == GOLDEN_FRAME || ref0 == LAST3_FRAME); + if (allow_update_cdf) + update_cdf(av1_get_pred_cdf_comp_ref_p(xd), bit, 2); +#if CONFIG_ENTROPY_STATS + counts->comp_ref[av1_get_pred_context_comp_ref_p(xd)][0][bit]++; +#endif // CONFIG_ENTROPY_STATS + if (!bit) { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_comp_ref_p1(xd), + ref0 == LAST2_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->comp_ref[av1_get_pred_context_comp_ref_p1(xd)][1] + [ref0 == LAST2_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } else { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_comp_ref_p2(xd), + ref0 == GOLDEN_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->comp_ref[av1_get_pred_context_comp_ref_p2(xd)][2] + [ref0 == GOLDEN_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_comp_bwdref_p(xd), + ref1 == ALTREF_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->comp_bwdref[av1_get_pred_context_comp_bwdref_p(xd)][0] + [ref1 == ALTREF_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + if (ref1 != ALTREF_FRAME) { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_comp_bwdref_p1(xd), + ref1 == ALTREF2_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->comp_bwdref[av1_get_pred_context_comp_bwdref_p1(xd)][1] + [ref1 == ALTREF2_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } + } + } else { + const int bit = (ref0 >= BWDREF_FRAME); + if (allow_update_cdf) + update_cdf(av1_get_pred_cdf_single_ref_p1(xd), bit, 2); +#if CONFIG_ENTROPY_STATS + counts->single_ref[av1_get_pred_context_single_ref_p1(xd)][0][bit]++; +#endif // CONFIG_ENTROPY_STATS + if (bit) { + assert(ref0 <= ALTREF_FRAME); + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_single_ref_p2(xd), + ref0 == ALTREF_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->single_ref[av1_get_pred_context_single_ref_p2(xd)][1] + [ref0 == ALTREF_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + if (ref0 != ALTREF_FRAME) { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_single_ref_p6(xd), + ref0 == ALTREF2_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->single_ref[av1_get_pred_context_single_ref_p6(xd)][5] + [ref0 == ALTREF2_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } + } else { + const int bit1 = !(ref0 == LAST2_FRAME || ref0 == LAST_FRAME); + if (allow_update_cdf) + update_cdf(av1_get_pred_cdf_single_ref_p3(xd), bit1, 2); +#if CONFIG_ENTROPY_STATS + counts + ->single_ref[av1_get_pred_context_single_ref_p3(xd)][2][bit1]++; +#endif // CONFIG_ENTROPY_STATS + if (!bit1) { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_single_ref_p4(xd), + ref0 != LAST_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->single_ref[av1_get_pred_context_single_ref_p4(xd)][3] + [ref0 != LAST_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } else { + if (allow_update_cdf) { + update_cdf(av1_get_pred_cdf_single_ref_p5(xd), + ref0 != LAST3_FRAME, 2); + } +#if CONFIG_ENTROPY_STATS + counts->single_ref[av1_get_pred_context_single_ref_p5(xd)][4] + [ref0 != LAST3_FRAME]++; +#endif // CONFIG_ENTROPY_STATS + } + } + } + + if (cm->seq_params.enable_interintra_compound && + is_interintra_allowed(mbmi)) { + const int bsize_group = size_group_lookup[bsize]; + if (mbmi->ref_frame[1] == INTRA_FRAME) { +#if CONFIG_ENTROPY_STATS + counts->interintra[bsize_group][1]++; +#endif + if (allow_update_cdf) + update_cdf(fc->interintra_cdf[bsize_group], 1, 2); +#if CONFIG_ENTROPY_STATS + counts->interintra_mode[bsize_group][mbmi->interintra_mode]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->interintra_mode_cdf[bsize_group], + mbmi->interintra_mode, INTERINTRA_MODES); + } + if (is_interintra_wedge_used(bsize)) { +#if CONFIG_ENTROPY_STATS + counts->wedge_interintra[bsize][mbmi->use_wedge_interintra]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->wedge_interintra_cdf[bsize], + mbmi->use_wedge_interintra, 2); + } + if (mbmi->use_wedge_interintra) { +#if CONFIG_ENTROPY_STATS + counts->wedge_idx[bsize][mbmi->interintra_wedge_index]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->wedge_idx_cdf[bsize], + mbmi->interintra_wedge_index, 16); + } + } + } + } else { +#if CONFIG_ENTROPY_STATS + counts->interintra[bsize_group][0]++; +#endif + if (allow_update_cdf) + update_cdf(fc->interintra_cdf[bsize_group], 0, 2); + } + } + + set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); + const MOTION_MODE motion_allowed = + cm->switchable_motion_mode + ? motion_mode_allowed(xd->global_motion, xd, mbmi, + cm->allow_warped_motion) + : SIMPLE_TRANSLATION; + if (mbmi->ref_frame[1] != INTRA_FRAME) { + if (motion_allowed == WARPED_CAUSAL) { +#if CONFIG_ENTROPY_STATS + counts->motion_mode[bsize][mbmi->motion_mode]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->motion_mode_cdf[bsize], mbmi->motion_mode, + MOTION_MODES); + } + } else if (motion_allowed == OBMC_CAUSAL) { +#if CONFIG_ENTROPY_STATS + counts->obmc[bsize][mbmi->motion_mode == OBMC_CAUSAL]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->obmc_cdf[bsize], mbmi->motion_mode == OBMC_CAUSAL, + 2); + } + } + } + + if (has_second_ref(mbmi)) { + assert(cm->reference_mode != SINGLE_REFERENCE && + is_inter_compound_mode(mbmi->mode) && + mbmi->motion_mode == SIMPLE_TRANSLATION); + + const int masked_compound_used = + is_any_masked_compound_used(bsize) && + cm->seq_params.enable_masked_compound; + if (masked_compound_used) { + const int comp_group_idx_ctx = get_comp_group_idx_context(xd); +#if CONFIG_ENTROPY_STATS + ++counts->comp_group_idx[comp_group_idx_ctx][mbmi->comp_group_idx]; +#endif + if (allow_update_cdf) { + update_cdf(fc->comp_group_idx_cdf[comp_group_idx_ctx], + mbmi->comp_group_idx, 2); + } + } + + if (mbmi->comp_group_idx == 0) { + const int comp_index_ctx = get_comp_index_context(cm, xd); +#if CONFIG_ENTROPY_STATS + ++counts->compound_index[comp_index_ctx][mbmi->compound_idx]; +#endif + if (allow_update_cdf) { + update_cdf(fc->compound_index_cdf[comp_index_ctx], + mbmi->compound_idx, 2); + } + } else { + assert(masked_compound_used); + if (is_interinter_compound_used(COMPOUND_WEDGE, bsize)) { +#if CONFIG_ENTROPY_STATS + ++counts->compound_type[bsize][mbmi->interinter_comp.type - 1]; +#endif + if (allow_update_cdf) { + update_cdf(fc->compound_type_cdf[bsize], + mbmi->interinter_comp.type - 1, COMPOUND_TYPES - 1); + } + } + } + } + if (mbmi->interinter_comp.type == COMPOUND_WEDGE) { + if (is_interinter_compound_used(COMPOUND_WEDGE, bsize)) { +#if CONFIG_ENTROPY_STATS + counts->wedge_idx[bsize][mbmi->interinter_comp.wedge_index]++; +#endif + if (allow_update_cdf) { + update_cdf(fc->wedge_idx_cdf[bsize], + mbmi->interinter_comp.wedge_index, 16); + } + } + } + } + } + + if (inter_block && + !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { + int16_t mode_ctx; + const PREDICTION_MODE mode = mbmi->mode; + + mode_ctx = + av1_mode_context_analyzer(mbmi_ext->mode_context, mbmi->ref_frame); + if (has_second_ref(mbmi)) { +#if CONFIG_ENTROPY_STATS + ++counts->inter_compound_mode[mode_ctx][INTER_COMPOUND_OFFSET(mode)]; +#endif + if (allow_update_cdf) + update_cdf(fc->inter_compound_mode_cdf[mode_ctx], + INTER_COMPOUND_OFFSET(mode), INTER_COMPOUND_MODES); + } else { + update_inter_mode_stats(fc, counts, mode, mode_ctx, allow_update_cdf); + } + + int mode_allowed = (mbmi->mode == NEWMV); + mode_allowed |= (mbmi->mode == NEW_NEWMV); + if (mode_allowed) { + uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame); + int idx; + + for (idx = 0; idx < 2; ++idx) { + if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) { +#if CONFIG_ENTROPY_STATS + uint8_t drl_ctx = + av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx); + ++counts->drl_mode[drl_ctx][mbmi->ref_mv_idx != idx]; +#endif + + if (mbmi->ref_mv_idx == idx) break; + } + } + } + + if (have_nearmv_in_inter_mode(mbmi->mode)) { + uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame); + int idx; + + for (idx = 1; idx < 3; ++idx) { + if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) { +#if CONFIG_ENTROPY_STATS + uint8_t drl_ctx = + av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx); + ++counts->drl_mode[drl_ctx][mbmi->ref_mv_idx != idx - 1]; +#endif + + if (mbmi->ref_mv_idx == idx - 1) break; + } + } + } + } + } +} + +typedef struct { + ENTROPY_CONTEXT a[MAX_MIB_SIZE * MAX_MB_PLANE]; + ENTROPY_CONTEXT l[MAX_MIB_SIZE * MAX_MB_PLANE]; + PARTITION_CONTEXT sa[MAX_MIB_SIZE]; + PARTITION_CONTEXT sl[MAX_MIB_SIZE]; + TXFM_CONTEXT *p_ta; + TXFM_CONTEXT *p_tl; + TXFM_CONTEXT ta[MAX_MIB_SIZE]; + TXFM_CONTEXT tl[MAX_MIB_SIZE]; +} RD_SEARCH_MACROBLOCK_CONTEXT; + +static void restore_context(MACROBLOCK *x, + const RD_SEARCH_MACROBLOCK_CONTEXT *ctx, int mi_row, + int mi_col, BLOCK_SIZE bsize, + const int num_planes) { + MACROBLOCKD *xd = &x->e_mbd; + int p; + const int num_4x4_blocks_wide = + block_size_wide[bsize] >> tx_size_wide_log2[0]; + const int num_4x4_blocks_high = + block_size_high[bsize] >> tx_size_high_log2[0]; + int mi_width = mi_size_wide[bsize]; + int mi_height = mi_size_high[bsize]; + for (p = 0; p < num_planes; p++) { + int tx_col = mi_col; + int tx_row = mi_row & MAX_MIB_MASK; + memcpy(xd->above_context[p] + (tx_col >> xd->plane[p].subsampling_x), + ctx->a + num_4x4_blocks_wide * p, + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >> + xd->plane[p].subsampling_x); + memcpy(xd->left_context[p] + (tx_row >> xd->plane[p].subsampling_y), + ctx->l + num_4x4_blocks_high * p, + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >> + xd->plane[p].subsampling_y); + } + memcpy(xd->above_seg_context + mi_col, ctx->sa, + sizeof(*xd->above_seg_context) * mi_width); + memcpy(xd->left_seg_context + (mi_row & MAX_MIB_MASK), ctx->sl, + sizeof(xd->left_seg_context[0]) * mi_height); + xd->above_txfm_context = ctx->p_ta; + xd->left_txfm_context = ctx->p_tl; + memcpy(xd->above_txfm_context, ctx->ta, + sizeof(*xd->above_txfm_context) * mi_width); + memcpy(xd->left_txfm_context, ctx->tl, + sizeof(*xd->left_txfm_context) * mi_height); +} + +static void save_context(const MACROBLOCK *x, RD_SEARCH_MACROBLOCK_CONTEXT *ctx, + int mi_row, int mi_col, BLOCK_SIZE bsize, + const int num_planes) { + const MACROBLOCKD *xd = &x->e_mbd; + int p; + const int num_4x4_blocks_wide = + block_size_wide[bsize] >> tx_size_wide_log2[0]; + const int num_4x4_blocks_high = + block_size_high[bsize] >> tx_size_high_log2[0]; + int mi_width = mi_size_wide[bsize]; + int mi_height = mi_size_high[bsize]; + + // buffer the above/left context information of the block in search. + for (p = 0; p < num_planes; ++p) { + int tx_col = mi_col; + int tx_row = mi_row & MAX_MIB_MASK; + memcpy(ctx->a + num_4x4_blocks_wide * p, + xd->above_context[p] + (tx_col >> xd->plane[p].subsampling_x), + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >> + xd->plane[p].subsampling_x); + memcpy(ctx->l + num_4x4_blocks_high * p, + xd->left_context[p] + (tx_row >> xd->plane[p].subsampling_y), + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >> + xd->plane[p].subsampling_y); + } + memcpy(ctx->sa, xd->above_seg_context + mi_col, + sizeof(*xd->above_seg_context) * mi_width); + memcpy(ctx->sl, xd->left_seg_context + (mi_row & MAX_MIB_MASK), + sizeof(xd->left_seg_context[0]) * mi_height); + memcpy(ctx->ta, xd->above_txfm_context, + sizeof(*xd->above_txfm_context) * mi_width); + memcpy(ctx->tl, xd->left_txfm_context, + sizeof(*xd->left_txfm_context) * mi_height); + ctx->p_ta = xd->above_txfm_context; + ctx->p_tl = xd->left_txfm_context; +} + +static void encode_b(const AV1_COMP *const cpi, TileDataEnc *tile_data, + ThreadData *td, TOKENEXTRA **tp, int mi_row, int mi_col, + RUN_TYPE dry_run, BLOCK_SIZE bsize, + PARTITION_TYPE partition, + const PICK_MODE_CONTEXT *const ctx, int *rate) { + TileInfo *const tile = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *xd = &x->e_mbd; + + set_offsets(cpi, tile, x, mi_row, mi_col, bsize); + MB_MODE_INFO *mbmi = xd->mi[0]; + mbmi->partition = partition; + update_state(cpi, tile_data, td, ctx, mi_row, mi_col, bsize, dry_run); + + if (!dry_run) av1_set_coeff_buffer(cpi, x, mi_row, mi_col); + + encode_superblock(cpi, tile_data, td, tp, dry_run, mi_row, mi_col, bsize, + rate); + + if (dry_run == 0) + x->cb_offset += block_size_wide[bsize] * block_size_high[bsize]; + + if (!dry_run) { + if (bsize == cpi->common.seq_params.sb_size && mbmi->skip == 1 && + cpi->common.delta_lf_present_flag) { + const int frame_lf_count = av1_num_planes(&cpi->common) > 1 + ? FRAME_LF_COUNT + : FRAME_LF_COUNT - 2; + for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) + mbmi->delta_lf[lf_id] = xd->delta_lf[lf_id]; + mbmi->delta_lf_from_base = xd->delta_lf_from_base; + } + if (has_second_ref(mbmi)) { + if (mbmi->compound_idx == 0 || + mbmi->interinter_comp.type == COMPOUND_AVERAGE) + mbmi->comp_group_idx = 0; + else + mbmi->comp_group_idx = 1; + } + update_stats(&cpi->common, tile_data, td, mi_row, mi_col); + } +} + +static void encode_sb(const AV1_COMP *const cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, int mi_row, + int mi_col, RUN_TYPE dry_run, BLOCK_SIZE bsize, + PC_TREE *pc_tree, int *rate) { + const AV1_COMMON *const cm = &cpi->common; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int hbs = mi_size_wide[bsize] / 2; + const int is_partition_root = bsize >= BLOCK_8X8; + const int ctx = is_partition_root + ? partition_plane_context(xd, mi_row, mi_col, bsize) + : -1; + const PARTITION_TYPE partition = pc_tree->partitioning; + const BLOCK_SIZE subsize = get_partition_subsize(bsize, partition); + int quarter_step = mi_size_wide[bsize] / 4; + int i; + BLOCK_SIZE bsize2 = get_partition_subsize(bsize, PARTITION_SPLIT); + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + if (!dry_run && ctx >= 0) { + const int has_rows = (mi_row + hbs) < cm->mi_rows; + const int has_cols = (mi_col + hbs) < cm->mi_cols; + + if (has_rows && has_cols) { +#if CONFIG_ENTROPY_STATS + td->counts->partition[ctx][partition]++; +#endif + + if (tile_data->allow_update_cdf) { + FRAME_CONTEXT *fc = xd->tile_ctx; + update_cdf(fc->partition_cdf[ctx], partition, + partition_cdf_length(bsize)); + } + } + } + + switch (partition) { + case PARTITION_NONE: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, subsize, + partition, &pc_tree->none, rate); + break; + case PARTITION_VERT: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, subsize, + partition, &pc_tree->vertical[0], rate); + if (mi_col + hbs < cm->mi_cols) { + encode_b(cpi, tile_data, td, tp, mi_row, mi_col + hbs, dry_run, subsize, + partition, &pc_tree->vertical[1], rate); + } + break; + case PARTITION_HORZ: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, subsize, + partition, &pc_tree->horizontal[0], rate); + if (mi_row + hbs < cm->mi_rows) { + encode_b(cpi, tile_data, td, tp, mi_row + hbs, mi_col, dry_run, subsize, + partition, &pc_tree->horizontal[1], rate); + } + break; + case PARTITION_SPLIT: + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, dry_run, subsize, + pc_tree->split[0], rate); + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col + hbs, dry_run, subsize, + pc_tree->split[1], rate); + encode_sb(cpi, td, tile_data, tp, mi_row + hbs, mi_col, dry_run, subsize, + pc_tree->split[2], rate); + encode_sb(cpi, td, tile_data, tp, mi_row + hbs, mi_col + hbs, dry_run, + subsize, pc_tree->split[3], rate); + break; + + case PARTITION_HORZ_A: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, bsize2, + partition, &pc_tree->horizontala[0], rate); + encode_b(cpi, tile_data, td, tp, mi_row, mi_col + hbs, dry_run, bsize2, + partition, &pc_tree->horizontala[1], rate); + encode_b(cpi, tile_data, td, tp, mi_row + hbs, mi_col, dry_run, subsize, + partition, &pc_tree->horizontala[2], rate); + break; + case PARTITION_HORZ_B: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, subsize, + partition, &pc_tree->horizontalb[0], rate); + encode_b(cpi, tile_data, td, tp, mi_row + hbs, mi_col, dry_run, bsize2, + partition, &pc_tree->horizontalb[1], rate); + encode_b(cpi, tile_data, td, tp, mi_row + hbs, mi_col + hbs, dry_run, + bsize2, partition, &pc_tree->horizontalb[2], rate); + break; + case PARTITION_VERT_A: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, bsize2, + partition, &pc_tree->verticala[0], rate); + encode_b(cpi, tile_data, td, tp, mi_row + hbs, mi_col, dry_run, bsize2, + partition, &pc_tree->verticala[1], rate); + encode_b(cpi, tile_data, td, tp, mi_row, mi_col + hbs, dry_run, subsize, + partition, &pc_tree->verticala[2], rate); + + break; + case PARTITION_VERT_B: + encode_b(cpi, tile_data, td, tp, mi_row, mi_col, dry_run, subsize, + partition, &pc_tree->verticalb[0], rate); + encode_b(cpi, tile_data, td, tp, mi_row, mi_col + hbs, dry_run, bsize2, + partition, &pc_tree->verticalb[1], rate); + encode_b(cpi, tile_data, td, tp, mi_row + hbs, mi_col + hbs, dry_run, + bsize2, partition, &pc_tree->verticalb[2], rate); + break; + case PARTITION_HORZ_4: + for (i = 0; i < 4; ++i) { + int this_mi_row = mi_row + i * quarter_step; + if (i > 0 && this_mi_row >= cm->mi_rows) break; + + encode_b(cpi, tile_data, td, tp, this_mi_row, mi_col, dry_run, subsize, + partition, &pc_tree->horizontal4[i], rate); + } + break; + case PARTITION_VERT_4: + for (i = 0; i < 4; ++i) { + int this_mi_col = mi_col + i * quarter_step; + if (i > 0 && this_mi_col >= cm->mi_cols) break; + + encode_b(cpi, tile_data, td, tp, mi_row, this_mi_col, dry_run, subsize, + partition, &pc_tree->vertical4[i], rate); + } + break; + default: assert(0 && "Invalid partition type."); break; + } + + update_ext_partition_context(xd, mi_row, mi_col, subsize, bsize, partition); +} + +// Check to see if the given partition size is allowed for a specified number +// of mi block rows and columns remaining in the image. +// If not then return the largest allowed partition size +static BLOCK_SIZE find_partition_size(BLOCK_SIZE bsize, int rows_left, + int cols_left, int *bh, int *bw) { + if (rows_left <= 0 || cols_left <= 0) { + return AOMMIN(bsize, BLOCK_8X8); + } else { + for (; bsize > 0; bsize -= 3) { + *bh = mi_size_high[bsize]; + *bw = mi_size_wide[bsize]; + if ((*bh <= rows_left) && (*bw <= cols_left)) { + break; + } + } + } + return bsize; +} + +static void set_partial_sb_partition(const AV1_COMMON *const cm, + MB_MODE_INFO *mi, int bh_in, int bw_in, + int mi_rows_remaining, + int mi_cols_remaining, BLOCK_SIZE bsize, + MB_MODE_INFO **mib) { + int bh = bh_in; + int r, c; + for (r = 0; r < cm->seq_params.mib_size; r += bh) { + int bw = bw_in; + for (c = 0; c < cm->seq_params.mib_size; c += bw) { + const int index = r * cm->mi_stride + c; + mib[index] = mi + index; + mib[index]->sb_type = find_partition_size( + bsize, mi_rows_remaining - r, mi_cols_remaining - c, &bh, &bw); + } + } +} + +// This function attempts to set all mode info entries in a given superblock +// to the same block partition size. +// However, at the bottom and right borders of the image the requested size +// may not be allowed in which case this code attempts to choose the largest +// allowable partition. +static void set_fixed_partitioning(AV1_COMP *cpi, const TileInfo *const tile, + MB_MODE_INFO **mib, int mi_row, int mi_col, + BLOCK_SIZE bsize) { + AV1_COMMON *const cm = &cpi->common; + const int mi_rows_remaining = tile->mi_row_end - mi_row; + const int mi_cols_remaining = tile->mi_col_end - mi_col; + int block_row, block_col; + MB_MODE_INFO *const mi_upper_left = cm->mi + mi_row * cm->mi_stride + mi_col; + int bh = mi_size_high[bsize]; + int bw = mi_size_wide[bsize]; + + assert((mi_rows_remaining > 0) && (mi_cols_remaining > 0)); + + // Apply the requested partition size to the SB if it is all "in image" + if ((mi_cols_remaining >= cm->seq_params.mib_size) && + (mi_rows_remaining >= cm->seq_params.mib_size)) { + for (block_row = 0; block_row < cm->seq_params.mib_size; block_row += bh) { + for (block_col = 0; block_col < cm->seq_params.mib_size; + block_col += bw) { + int index = block_row * cm->mi_stride + block_col; + mib[index] = mi_upper_left + index; + mib[index]->sb_type = bsize; + } + } + } else { + // Else this is a partial SB. + set_partial_sb_partition(cm, mi_upper_left, bh, bw, mi_rows_remaining, + mi_cols_remaining, bsize, mib); + } +} + +static void rd_use_partition(AV1_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, MB_MODE_INFO **mib, + TOKENEXTRA **tp, int mi_row, int mi_col, + BLOCK_SIZE bsize, int *rate, int64_t *dist, + int do_recon, PC_TREE *pc_tree) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int bs = mi_size_wide[bsize]; + const int hbs = bs / 2; + int i; + const int pl = (bsize >= BLOCK_8X8) + ? partition_plane_context(xd, mi_row, mi_col, bsize) + : 0; + const PARTITION_TYPE partition = + (bsize >= BLOCK_8X8) ? get_partition(cm, mi_row, mi_col, bsize) + : PARTITION_NONE; + const BLOCK_SIZE subsize = get_partition_subsize(bsize, partition); + RD_SEARCH_MACROBLOCK_CONTEXT x_ctx; + RD_STATS last_part_rdc, none_rdc, chosen_rdc; + BLOCK_SIZE sub_subsize = BLOCK_4X4; + int splits_below = 0; + BLOCK_SIZE bs_type = mib[0]->sb_type; + int do_partition_search = 1; + PICK_MODE_CONTEXT *ctx_none = &pc_tree->none; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + assert(mi_size_wide[bsize] == mi_size_high[bsize]); + + av1_invalid_rd_stats(&last_part_rdc); + av1_invalid_rd_stats(&none_rdc); + av1_invalid_rd_stats(&chosen_rdc); + + pc_tree->partitioning = partition; + + xd->above_txfm_context = cm->above_txfm_context[tile_info->tile_row] + mi_col; + xd->left_txfm_context = + xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); + save_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + + if (bsize == BLOCK_16X16 && cpi->vaq_refresh) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + x->mb_energy = av1_log_block_var(cpi, x, bsize); + } + + if (do_partition_search && + cpi->sf.partition_search_type == SEARCH_PARTITION && + cpi->sf.adjust_partitioning_from_last_frame) { + // Check if any of the sub blocks are further split. + if (partition == PARTITION_SPLIT && subsize > BLOCK_8X8) { + sub_subsize = get_partition_subsize(subsize, PARTITION_SPLIT); + splits_below = 1; + for (i = 0; i < 4; i++) { + int jj = i >> 1, ii = i & 0x01; + MB_MODE_INFO *this_mi = mib[jj * hbs * cm->mi_stride + ii * hbs]; + if (this_mi && this_mi->sb_type >= sub_subsize) { + splits_below = 0; + } + } + } + + // If partition is not none try none unless each of the 4 splits are split + // even further.. + if (partition != PARTITION_NONE && !splits_below && + mi_row + hbs < cm->mi_rows && mi_col + hbs < cm->mi_cols) { + pc_tree->partitioning = PARTITION_NONE; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &none_rdc, + PARTITION_NONE, bsize, ctx_none, INT64_MAX); + + if (none_rdc.rate < INT_MAX) { + none_rdc.rate += x->partition_cost[pl][PARTITION_NONE]; + none_rdc.rdcost = RDCOST(x->rdmult, none_rdc.rate, none_rdc.dist); + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + mib[0]->sb_type = bs_type; + pc_tree->partitioning = partition; + } + } + for (int b = 0; b < 2; ++b) { + pc_tree->horizontal[b].skip_ref_frame_mask = 0; + pc_tree->vertical[b].skip_ref_frame_mask = 0; + } + for (int b = 0; b < 3; ++b) { + pc_tree->horizontala[b].skip_ref_frame_mask = 0; + pc_tree->horizontalb[b].skip_ref_frame_mask = 0; + pc_tree->verticala[b].skip_ref_frame_mask = 0; + pc_tree->verticalb[b].skip_ref_frame_mask = 0; + } + for (int b = 0; b < 4; ++b) { + pc_tree->horizontal4[b].skip_ref_frame_mask = 0; + pc_tree->vertical4[b].skip_ref_frame_mask = 0; + } + switch (partition) { + case PARTITION_NONE: + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + PARTITION_NONE, bsize, ctx_none, INT64_MAX); + break; + case PARTITION_HORZ: + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + PARTITION_HORZ, subsize, &pc_tree->horizontal[0], + INT64_MAX); + if (last_part_rdc.rate != INT_MAX && bsize >= BLOCK_8X8 && + mi_row + hbs < cm->mi_rows) { + RD_STATS tmp_rdc; + const PICK_MODE_CONTEXT *const ctx_h = &pc_tree->horizontal[0]; + av1_init_rd_stats(&tmp_rdc); + update_state(cpi, tile_data, td, ctx_h, mi_row, mi_col, subsize, 1); + encode_superblock(cpi, tile_data, td, tp, DRY_RUN_NORMAL, mi_row, + mi_col, subsize, NULL); + rd_pick_sb_modes(cpi, tile_data, x, mi_row + hbs, mi_col, &tmp_rdc, + PARTITION_HORZ, subsize, &pc_tree->horizontal[1], + INT64_MAX); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + av1_invalid_rd_stats(&last_part_rdc); + break; + } + last_part_rdc.rate += tmp_rdc.rate; + last_part_rdc.dist += tmp_rdc.dist; + last_part_rdc.rdcost += tmp_rdc.rdcost; + } + break; + case PARTITION_VERT: + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + PARTITION_VERT, subsize, &pc_tree->vertical[0], + INT64_MAX); + if (last_part_rdc.rate != INT_MAX && bsize >= BLOCK_8X8 && + mi_col + hbs < cm->mi_cols) { + RD_STATS tmp_rdc; + const PICK_MODE_CONTEXT *const ctx_v = &pc_tree->vertical[0]; + av1_init_rd_stats(&tmp_rdc); + update_state(cpi, tile_data, td, ctx_v, mi_row, mi_col, subsize, 1); + encode_superblock(cpi, tile_data, td, tp, DRY_RUN_NORMAL, mi_row, + mi_col, subsize, NULL); + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col + hbs, &tmp_rdc, + PARTITION_VERT, subsize, + &pc_tree->vertical[bsize > BLOCK_8X8], INT64_MAX); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + av1_invalid_rd_stats(&last_part_rdc); + break; + } + last_part_rdc.rate += tmp_rdc.rate; + last_part_rdc.dist += tmp_rdc.dist; + last_part_rdc.rdcost += tmp_rdc.rdcost; + } + break; + case PARTITION_SPLIT: + last_part_rdc.rate = 0; + last_part_rdc.dist = 0; + last_part_rdc.rdcost = 0; + for (i = 0; i < 4; i++) { + int x_idx = (i & 1) * hbs; + int y_idx = (i >> 1) * hbs; + int jj = i >> 1, ii = i & 0x01; + RD_STATS tmp_rdc; + if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols)) + continue; + + av1_init_rd_stats(&tmp_rdc); + rd_use_partition(cpi, td, tile_data, + mib + jj * hbs * cm->mi_stride + ii * hbs, tp, + mi_row + y_idx, mi_col + x_idx, subsize, &tmp_rdc.rate, + &tmp_rdc.dist, i != 3, pc_tree->split[i]); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + av1_invalid_rd_stats(&last_part_rdc); + break; + } + last_part_rdc.rate += tmp_rdc.rate; + last_part_rdc.dist += tmp_rdc.dist; + } + break; + case PARTITION_VERT_A: + case PARTITION_VERT_B: + case PARTITION_HORZ_A: + case PARTITION_HORZ_B: + case PARTITION_HORZ_4: + case PARTITION_VERT_4: + assert(0 && "Cannot handle extended partition types"); + default: assert(0); break; + } + + if (last_part_rdc.rate < INT_MAX) { + last_part_rdc.rate += x->partition_cost[pl][partition]; + last_part_rdc.rdcost = + RDCOST(x->rdmult, last_part_rdc.rate, last_part_rdc.dist); + } + + if (do_partition_search && cpi->sf.adjust_partitioning_from_last_frame && + cpi->sf.partition_search_type == SEARCH_PARTITION && + partition != PARTITION_SPLIT && bsize > BLOCK_8X8 && + (mi_row + bs < cm->mi_rows || mi_row + hbs == cm->mi_rows) && + (mi_col + bs < cm->mi_cols || mi_col + hbs == cm->mi_cols)) { + BLOCK_SIZE split_subsize = get_partition_subsize(bsize, PARTITION_SPLIT); + chosen_rdc.rate = 0; + chosen_rdc.dist = 0; + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + pc_tree->partitioning = PARTITION_SPLIT; + + // Split partition. + for (i = 0; i < 4; i++) { + int x_idx = (i & 1) * hbs; + int y_idx = (i >> 1) * hbs; + RD_STATS tmp_rdc; + + if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols)) + continue; + + save_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + pc_tree->split[i]->partitioning = PARTITION_NONE; + rd_pick_sb_modes(cpi, tile_data, x, mi_row + y_idx, mi_col + x_idx, + &tmp_rdc, PARTITION_SPLIT, split_subsize, + &pc_tree->split[i]->none, INT64_MAX); + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + av1_invalid_rd_stats(&chosen_rdc); + break; + } + + chosen_rdc.rate += tmp_rdc.rate; + chosen_rdc.dist += tmp_rdc.dist; + + if (i != 3) + encode_sb(cpi, td, tile_data, tp, mi_row + y_idx, mi_col + x_idx, + OUTPUT_ENABLED, split_subsize, pc_tree->split[i], NULL); + + chosen_rdc.rate += x->partition_cost[pl][PARTITION_NONE]; + } + if (chosen_rdc.rate < INT_MAX) { + chosen_rdc.rate += x->partition_cost[pl][PARTITION_SPLIT]; + chosen_rdc.rdcost = RDCOST(x->rdmult, chosen_rdc.rate, chosen_rdc.dist); + } + } + + // If last_part is better set the partitioning to that. + if (last_part_rdc.rdcost < chosen_rdc.rdcost) { + mib[0]->sb_type = bsize; + if (bsize >= BLOCK_8X8) pc_tree->partitioning = partition; + chosen_rdc = last_part_rdc; + } + // If none was better set the partitioning to that. + if (none_rdc.rdcost < chosen_rdc.rdcost) { + if (bsize >= BLOCK_8X8) pc_tree->partitioning = PARTITION_NONE; + chosen_rdc = none_rdc; + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + + // We must have chosen a partitioning and encoding or we'll fail later on. + // No other opportunities for success. + if (bsize == cm->seq_params.sb_size) + assert(chosen_rdc.rate < INT_MAX && chosen_rdc.dist < INT64_MAX); + + if (do_recon) { + if (bsize == cm->seq_params.sb_size) { + // NOTE: To get estimate for rate due to the tokens, use: + // int rate_coeffs = 0; + // encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, DRY_RUN_COSTCOEFFS, + // bsize, pc_tree, &rate_coeffs); + x->cb_offset = 0; + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, OUTPUT_ENABLED, bsize, + pc_tree, NULL); + } else { + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, DRY_RUN_NORMAL, bsize, + pc_tree, NULL); + } + } + + *rate = chosen_rdc.rate; + *dist = chosen_rdc.dist; +} + +/* clang-format off */ +static const BLOCK_SIZE min_partition_size[BLOCK_SIZES_ALL] = { + BLOCK_4X4, // 4x4 + BLOCK_4X4, BLOCK_4X4, BLOCK_4X4, // 4x8, 8x4, 8x8 + BLOCK_4X4, BLOCK_4X4, BLOCK_8X8, // 8x16, 16x8, 16x16 + BLOCK_8X8, BLOCK_8X8, BLOCK_16X16, // 16x32, 32x16, 32x32 + BLOCK_16X16, BLOCK_16X16, BLOCK_16X16, // 32x64, 64x32, 64x64 + BLOCK_16X16, BLOCK_16X16, BLOCK_16X16, // 64x128, 128x64, 128x128 + BLOCK_4X4, BLOCK_4X4, BLOCK_8X8, // 4x16, 16x4, 8x32 + BLOCK_8X8, BLOCK_16X16, BLOCK_16X16, // 32x8, 16x64, 64x16 +}; + +static const BLOCK_SIZE max_partition_size[BLOCK_SIZES_ALL] = { + BLOCK_8X8, // 4x4 + BLOCK_16X16, BLOCK_16X16, BLOCK_16X16, // 4x8, 8x4, 8x8 + BLOCK_32X32, BLOCK_32X32, BLOCK_32X32, // 8x16, 16x8, 16x16 + BLOCK_64X64, BLOCK_64X64, BLOCK_64X64, // 16x32, 32x16, 32x32 + BLOCK_LARGEST, BLOCK_LARGEST, BLOCK_LARGEST, // 32x64, 64x32, 64x64 + BLOCK_LARGEST, BLOCK_LARGEST, BLOCK_LARGEST, // 64x128, 128x64, 128x128 + BLOCK_16X16, BLOCK_16X16, BLOCK_32X32, // 4x16, 16x4, 8x32 + BLOCK_32X32, BLOCK_LARGEST, BLOCK_LARGEST, // 32x8, 16x64, 64x16 +}; + +// Next square block size less or equal than current block size. +static const BLOCK_SIZE next_square_size[BLOCK_SIZES_ALL] = { + BLOCK_4X4, // 4x4 + BLOCK_4X4, BLOCK_4X4, BLOCK_8X8, // 4x8, 8x4, 8x8 + BLOCK_8X8, BLOCK_8X8, BLOCK_16X16, // 8x16, 16x8, 16x16 + BLOCK_16X16, BLOCK_16X16, BLOCK_32X32, // 16x32, 32x16, 32x32 + BLOCK_32X32, BLOCK_32X32, BLOCK_64X64, // 32x64, 64x32, 64x64 + BLOCK_64X64, BLOCK_64X64, BLOCK_128X128, // 64x128, 128x64, 128x128 + BLOCK_4X4, BLOCK_4X4, BLOCK_8X8, // 4x16, 16x4, 8x32 + BLOCK_8X8, BLOCK_16X16, BLOCK_16X16, // 32x8, 16x64, 64x16 +}; +/* clang-format on */ + +// Look at all the mode_info entries for blocks that are part of this +// partition and find the min and max values for sb_type. +// At the moment this is designed to work on a superblock but could be +// adjusted to use a size parameter. +// +// The min and max are assumed to have been initialized prior to calling this +// function so repeat calls can accumulate a min and max of more than one +// superblock. +static void get_sb_partition_size_range(const AV1_COMMON *const cm, + MACROBLOCKD *xd, MB_MODE_INFO **mib, + BLOCK_SIZE *min_block_size, + BLOCK_SIZE *max_block_size) { + int i, j; + int index = 0; + + // Check the sb_type for each block that belongs to this region. + for (i = 0; i < cm->seq_params.mib_size; ++i) { + for (j = 0; j < cm->seq_params.mib_size; ++j) { + MB_MODE_INFO *mi = mib[index + j]; + BLOCK_SIZE sb_type = mi ? mi->sb_type : BLOCK_4X4; + *min_block_size = AOMMIN(*min_block_size, sb_type); + *max_block_size = AOMMAX(*max_block_size, sb_type); + } + index += xd->mi_stride; + } +} + +// Checks to see if a super block is on a horizontal image edge. +// In most cases this is the "real" edge unless there are formatting +// bars embedded in the stream. +static int active_h_edge(const AV1_COMP *cpi, int mi_row, int mi_step) { + int top_edge = 0; + int bottom_edge = cpi->common.mi_rows; + int is_active_h_edge = 0; + + // For two pass account for any formatting bars detected. + if (cpi->oxcf.pass == 2) { + const TWO_PASS *const twopass = &cpi->twopass; + + // The inactive region is specified in MBs not mi units. + // The image edge is in the following MB row. + top_edge += (int)(twopass->this_frame_stats.inactive_zone_rows * 2); + + bottom_edge -= (int)(twopass->this_frame_stats.inactive_zone_rows * 2); + bottom_edge = AOMMAX(top_edge, bottom_edge); + } + + if (((top_edge >= mi_row) && (top_edge < (mi_row + mi_step))) || + ((bottom_edge >= mi_row) && (bottom_edge < (mi_row + mi_step)))) { + is_active_h_edge = 1; + } + return is_active_h_edge; +} + +// Checks to see if a super block is on a vertical image edge. +// In most cases this is the "real" edge unless there are formatting +// bars embedded in the stream. +static int active_v_edge(const AV1_COMP *cpi, int mi_col, int mi_step) { + int left_edge = 0; + int right_edge = cpi->common.mi_cols; + int is_active_v_edge = 0; + + // For two pass account for any formatting bars detected. + if (cpi->oxcf.pass == 2) { + const TWO_PASS *const twopass = &cpi->twopass; + + // The inactive region is specified in MBs not mi units. + // The image edge is in the following MB row. + left_edge += (int)(twopass->this_frame_stats.inactive_zone_cols * 2); + + right_edge -= (int)(twopass->this_frame_stats.inactive_zone_cols * 2); + right_edge = AOMMAX(left_edge, right_edge); + } + + if (((left_edge >= mi_col) && (left_edge < (mi_col + mi_step))) || + ((right_edge >= mi_col) && (right_edge < (mi_col + mi_step)))) { + is_active_v_edge = 1; + } + return is_active_v_edge; +} + +// Checks to see if a super block is at the edge of the active image. +// In most cases this is the "real" edge unless there are formatting +// bars embedded in the stream. +static int active_edge_sb(const AV1_COMP *cpi, int mi_row, int mi_col) { + return active_h_edge(cpi, mi_row, cpi->common.seq_params.mib_size) || + active_v_edge(cpi, mi_col, cpi->common.seq_params.mib_size); +} + +// Look at neighboring blocks and set a min and max partition size based on +// what they chose. +static void rd_auto_partition_range(AV1_COMP *cpi, const TileInfo *const tile, + MACROBLOCKD *const xd, int mi_row, + int mi_col, BLOCK_SIZE *min_block_size, + BLOCK_SIZE *max_block_size) { + AV1_COMMON *const cm = &cpi->common; + MB_MODE_INFO **mi = xd->mi; + const int left_in_image = xd->left_available && mi[-1]; + const int above_in_image = xd->up_available && mi[-xd->mi_stride]; + const int mi_rows_remaining = tile->mi_row_end - mi_row; + const int mi_cols_remaining = tile->mi_col_end - mi_col; + int bh, bw; + BLOCK_SIZE min_size = BLOCK_4X4; + BLOCK_SIZE max_size = BLOCK_LARGEST; + + // Trap case where we do not have a prediction. + if (left_in_image || above_in_image || cm->frame_type != KEY_FRAME) { + // Default "min to max" and "max to min" + min_size = BLOCK_LARGEST; + max_size = BLOCK_4X4; + + // NOTE: each call to get_sb_partition_size_range() uses the previous + // passed in values for min and max as a starting point. + // Find the min and max partition used in previous frame at this location + if (cm->frame_type != KEY_FRAME) { + MB_MODE_INFO **prev_mi = + &cm->prev_mi_grid_visible[mi_row * xd->mi_stride + mi_col]; + get_sb_partition_size_range(cm, xd, prev_mi, &min_size, &max_size); + } + // Find the min and max partition sizes used in the left superblock + if (left_in_image) { + MB_MODE_INFO **left_sb_mi = &mi[-cm->seq_params.mib_size]; + get_sb_partition_size_range(cm, xd, left_sb_mi, &min_size, &max_size); + } + // Find the min and max partition sizes used in the above suprblock. + if (above_in_image) { + MB_MODE_INFO **above_sb_mi = + &mi[-xd->mi_stride * cm->seq_params.mib_size]; + get_sb_partition_size_range(cm, xd, above_sb_mi, &min_size, &max_size); + } + + // Adjust observed min and max for "relaxed" auto partition case. + if (cpi->sf.auto_min_max_partition_size == RELAXED_NEIGHBORING_MIN_MAX) { + min_size = min_partition_size[min_size]; + max_size = max_partition_size[max_size]; + } + } + + // Check border cases where max and min from neighbors may not be legal. + max_size = find_partition_size(max_size, mi_rows_remaining, mi_cols_remaining, + &bh, &bw); + min_size = AOMMIN(min_size, max_size); + + // Test for blocks at the edge of the active image. + // This may be the actual edge of the image or where there are formatting + // bars. + if (active_edge_sb(cpi, mi_row, mi_col)) { + min_size = BLOCK_4X4; + } else { + min_size = AOMMIN(cpi->sf.rd_auto_partition_min_limit, min_size); + } + + // When use_square_partition_only is true, make sure at least one square + // partition is allowed by selecting the next smaller square size as + // *min_block_size. + if (min_size >= cpi->sf.use_square_partition_only_threshold) { + min_size = AOMMIN(min_size, next_square_size[max_size]); + } + + *min_block_size = AOMMIN(min_size, cm->seq_params.sb_size); + *max_block_size = AOMMIN(max_size, cm->seq_params.sb_size); +} + +// TODO(jingning) refactor functions setting partition search range +static void set_partition_range(const AV1_COMMON *const cm, + const MACROBLOCKD *const xd, int mi_row, + int mi_col, BLOCK_SIZE bsize, + BLOCK_SIZE *const min_bs, + BLOCK_SIZE *const max_bs) { + const int mi_width = mi_size_wide[bsize]; + const int mi_height = mi_size_high[bsize]; + int idx, idy; + + const int idx_str = cm->mi_stride * mi_row + mi_col; + MB_MODE_INFO **const prev_mi = &cm->prev_mi_grid_visible[idx_str]; + BLOCK_SIZE min_size = cm->seq_params.sb_size; // default values + BLOCK_SIZE max_size = BLOCK_4X4; + + if (prev_mi) { + for (idy = 0; idy < mi_height; ++idy) { + for (idx = 0; idx < mi_width; ++idx) { + const MB_MODE_INFO *const mi = prev_mi[idy * cm->mi_stride + idx]; + const BLOCK_SIZE bs = mi ? mi->sb_type : bsize; + min_size = AOMMIN(min_size, bs); + max_size = AOMMAX(max_size, bs); + } + } + } + + if (xd->left_available) { + for (idy = 0; idy < mi_height; ++idy) { + const MB_MODE_INFO *const mi = xd->mi[idy * cm->mi_stride - 1]; + const BLOCK_SIZE bs = mi ? mi->sb_type : bsize; + min_size = AOMMIN(min_size, bs); + max_size = AOMMAX(max_size, bs); + } + } + + if (xd->up_available) { + for (idx = 0; idx < mi_width; ++idx) { + const MB_MODE_INFO *const mi = xd->mi[idx - cm->mi_stride]; + const BLOCK_SIZE bs = mi ? mi->sb_type : bsize; + min_size = AOMMIN(min_size, bs); + max_size = AOMMAX(max_size, bs); + } + } + + if (min_size == max_size) { + min_size = min_partition_size[min_size]; + max_size = max_partition_size[max_size]; + } + + *min_bs = AOMMIN(min_size, cm->seq_params.sb_size); + *max_bs = AOMMIN(max_size, cm->seq_params.sb_size); +} + +static INLINE void store_pred_mv(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) { + memcpy(ctx->pred_mv, x->pred_mv, sizeof(x->pred_mv)); +} + +static INLINE void load_pred_mv(MACROBLOCK *x, + const PICK_MODE_CONTEXT *const ctx) { + memcpy(x->pred_mv, ctx->pred_mv, sizeof(x->pred_mv)); +} + +#if CONFIG_FP_MB_STATS +const int qindex_skip_threshold_lookup[BLOCK_SIZES] = { + 0, 10, 10, 30, 40, 40, 60, 80, 80, 90, 100, 100, 120, + // TODO(debargha): What are the correct numbers here? + 130, 130, 150 +}; +const int qindex_split_threshold_lookup[BLOCK_SIZES] = { + 0, 3, 3, 7, 15, 15, 30, 40, 40, 60, 80, 80, 120, + // TODO(debargha): What are the correct numbers here? + 160, 160, 240 +}; +const int complexity_16x16_blocks_threshold[BLOCK_SIZES] = { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 4, 6, + // TODO(debargha): What are the correct numbers here? + 8, 8, 10 +}; + +typedef enum { + MV_ZERO = 0, + MV_LEFT = 1, + MV_UP = 2, + MV_RIGHT = 3, + MV_DOWN = 4, + MV_INVALID +} MOTION_DIRECTION; + +static INLINE MOTION_DIRECTION get_motion_direction_fp(uint8_t fp_byte) { + if (fp_byte & FPMB_MOTION_ZERO_MASK) { + return MV_ZERO; + } else if (fp_byte & FPMB_MOTION_LEFT_MASK) { + return MV_LEFT; + } else if (fp_byte & FPMB_MOTION_RIGHT_MASK) { + return MV_RIGHT; + } else if (fp_byte & FPMB_MOTION_UP_MASK) { + return MV_UP; + } else { + return MV_DOWN; + } +} + +static INLINE int get_motion_inconsistency(MOTION_DIRECTION this_mv, + MOTION_DIRECTION that_mv) { + if (this_mv == that_mv) { + return 0; + } else { + return abs(this_mv - that_mv) == 2 ? 2 : 1; + } +} +#endif + +// Try searching for an encoding for the given subblock. Returns zero if the +// rdcost is already too high (to tell the caller not to bother searching for +// encodings of further subblocks) +static int rd_try_subblock(AV1_COMP *const cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, int is_last, + int mi_row, int mi_col, BLOCK_SIZE subsize, + RD_STATS *best_rdc, RD_STATS *sum_rdc, + RD_STATS *this_rdc, PARTITION_TYPE partition, + PICK_MODE_CONTEXT *prev_ctx, + PICK_MODE_CONTEXT *this_ctx) { +#define RTS_X_RATE_NOCOEF_ARG +#define RTS_MAX_RDCOST best_rdc->rdcost + + MACROBLOCK *const x = &td->mb; + + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, prev_ctx); + + const int64_t rdcost_remaining = best_rdc->rdcost == INT64_MAX + ? INT64_MAX + : (best_rdc->rdcost - sum_rdc->rdcost); + + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, this_rdc, + RTS_X_RATE_NOCOEF_ARG partition, subsize, this_ctx, + rdcost_remaining); + + if (this_rdc->rate == INT_MAX) { + sum_rdc->rdcost = INT64_MAX; + } else { + sum_rdc->rate += this_rdc->rate; + sum_rdc->dist += this_rdc->dist; + sum_rdc->rdcost += this_rdc->rdcost; + } + + if (sum_rdc->rdcost >= RTS_MAX_RDCOST) return 0; + + if (!is_last) { + update_state(cpi, tile_data, td, this_ctx, mi_row, mi_col, subsize, 1); + encode_superblock(cpi, tile_data, td, tp, DRY_RUN_NORMAL, mi_row, mi_col, + subsize, NULL); + } + + return 1; + +#undef RTS_X_RATE_NOCOEF_ARG +#undef RTS_MAX_RDCOST +} + +static void rd_test_partition3(AV1_COMP *const cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, + PC_TREE *pc_tree, RD_STATS *best_rdc, + PICK_MODE_CONTEXT ctxs[3], + PICK_MODE_CONTEXT *ctx, int mi_row, int mi_col, + BLOCK_SIZE bsize, PARTITION_TYPE partition, + int mi_row0, int mi_col0, BLOCK_SIZE subsize0, + int mi_row1, int mi_col1, BLOCK_SIZE subsize1, + int mi_row2, int mi_col2, BLOCK_SIZE subsize2) { + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + RD_STATS sum_rdc, this_rdc; +#define RTP_STX_TRY_ARGS + int pl = partition_plane_context(xd, mi_row, mi_col, bsize); + av1_init_rd_stats(&sum_rdc); + sum_rdc.rate = x->partition_cost[pl][partition]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, 0); + if (!rd_try_subblock(cpi, td, tile_data, tp, 0, mi_row0, mi_col0, subsize0, + best_rdc, &sum_rdc, &this_rdc, + RTP_STX_TRY_ARGS partition, ctx, &ctxs[0])) + return; + + if (!rd_try_subblock(cpi, td, tile_data, tp, 0, mi_row1, mi_col1, subsize1, + best_rdc, &sum_rdc, &this_rdc, + RTP_STX_TRY_ARGS partition, &ctxs[0], &ctxs[1])) + return; + + // With the new layout of mixed partitions for PARTITION_HORZ_B and + // PARTITION_VERT_B, the last subblock might start past halfway through the + // main block, so we might signal it even though the subblock lies strictly + // outside the image. In that case, we won't spend any bits coding it and the + // difference (obviously) doesn't contribute to the error. + const int try_block2 = 1; + if (try_block2 && + !rd_try_subblock(cpi, td, tile_data, tp, 1, mi_row2, mi_col2, subsize2, + best_rdc, &sum_rdc, &this_rdc, + RTP_STX_TRY_ARGS partition, &ctxs[1], &ctxs[2])) + return; + + if (sum_rdc.rdcost >= best_rdc->rdcost) return; + + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + + if (sum_rdc.rdcost >= best_rdc->rdcost) return; + + *best_rdc = sum_rdc; + pc_tree->partitioning = partition; + +#undef RTP_STX_TRY_ARGS +} + +static void reset_partition(PC_TREE *pc_tree, BLOCK_SIZE bsize) { + pc_tree->partitioning = PARTITION_NONE; + pc_tree->cb_search_range = SEARCH_FULL_PLANE; + pc_tree->none.skip = 0; + + if (bsize >= BLOCK_8X8) { + BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_SPLIT); + for (int idx = 0; idx < 4; ++idx) + reset_partition(pc_tree->split[idx], subsize); + } +} + +static void rd_pick_sqr_partition(AV1_COMP *const cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, + int mi_row, int mi_col, BLOCK_SIZE bsize, + RD_STATS *rd_cost, int64_t best_rd, + PC_TREE *pc_tree, int64_t *none_rd) { + const AV1_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int mi_step = mi_size_wide[bsize] / 2; + RD_SEARCH_MACROBLOCK_CONTEXT x_ctx; + const TOKENEXTRA *const tp_orig = *tp; + PICK_MODE_CONTEXT *ctx_none = &pc_tree->none; + int tmp_partition_cost[PARTITION_TYPES]; + BLOCK_SIZE subsize; + RD_STATS this_rdc, sum_rdc, best_rdc, pn_rdc; + const int bsize_at_least_8x8 = (bsize >= BLOCK_8X8); + int do_square_split = bsize_at_least_8x8; + const int pl = bsize_at_least_8x8 + ? partition_plane_context(xd, mi_row, mi_col, bsize) + : 0; + const int *partition_cost = + pl >= 0 ? x->partition_cost[pl] : x->partition_cost[0]; + const int num_planes = av1_num_planes(cm); + + int64_t split_rd[4] = { 0, 0, 0, 0 }; + + // Override skipping rectangular partition operations for edge blocks + const int has_rows = (mi_row + mi_step < cm->mi_rows); + const int has_cols = (mi_col + mi_step < cm->mi_cols); + + if (none_rd) *none_rd = 0; + + int partition_none_allowed = has_rows && has_cols; + + (void)*tp_orig; + (void)split_rd; + + if (best_rd < 0) { + pc_tree->none.rdcost = INT64_MAX; + pc_tree->none.skip = 0; + av1_invalid_rd_stats(rd_cost); + return; + } + pc_tree->pc_tree_stats.valid = 1; + + // Override partition costs at the edges of the frame in the same + // way as in read_partition (see decodeframe.c) + if (!(has_rows && has_cols)) { + assert(bsize_at_least_8x8 && pl >= 0); + const aom_cdf_prob *partition_cdf = cm->fc->partition_cdf[pl]; + for (int i = 0; i < PARTITION_TYPES; ++i) tmp_partition_cost[i] = INT_MAX; + if (has_cols) { + // At the bottom, the two possibilities are HORZ and SPLIT + aom_cdf_prob bot_cdf[2]; + partition_gather_vert_alike(bot_cdf, partition_cdf, bsize); + static const int bot_inv_map[2] = { PARTITION_HORZ, PARTITION_SPLIT }; + av1_cost_tokens_from_cdf(tmp_partition_cost, bot_cdf, bot_inv_map); + } else if (has_rows) { + // At the right, the two possibilities are VERT and SPLIT + aom_cdf_prob rhs_cdf[2]; + partition_gather_horz_alike(rhs_cdf, partition_cdf, bsize); + static const int rhs_inv_map[2] = { PARTITION_VERT, PARTITION_SPLIT }; + av1_cost_tokens_from_cdf(tmp_partition_cost, rhs_cdf, rhs_inv_map); + } else { + // At the bottom right, we always split + tmp_partition_cost[PARTITION_SPLIT] = 0; + } + + partition_cost = tmp_partition_cost; + } + +#ifndef NDEBUG + // Nothing should rely on the default value of this array (which is just + // leftover from encoding the previous block. Setting it to fixed pattern + // when debugging. + // bit 0, 1, 2 are blk_skip of each plane + // bit 4, 5, 6 are initialization checking of each plane + memset(x->blk_skip, 0x77, sizeof(x->blk_skip)); +#endif // NDEBUG + + assert(mi_size_wide[bsize] == mi_size_high[bsize]); + + av1_init_rd_stats(&this_rdc); + av1_init_rd_stats(&sum_rdc); + av1_invalid_rd_stats(&best_rdc); + best_rdc.rdcost = best_rd; + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + + if (bsize == BLOCK_16X16 && cpi->vaq_refresh) + x->mb_energy = av1_log_block_var(cpi, x, bsize); + + xd->above_txfm_context = cm->above_txfm_context[tile_info->tile_row] + mi_col; + xd->left_txfm_context = + xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); + save_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + +#if CONFIG_DIST_8X8 + if (x->using_dist_8x8) { + if (block_size_high[bsize] <= 8 || block_size_wide[bsize] <= 8) + do_square_split = 0; + } +#endif + + // PARTITION_NONE + if (partition_none_allowed) { + int pt_cost = 0; + if (bsize_at_least_8x8) { + pc_tree->partitioning = PARTITION_NONE; + pt_cost = partition_cost[PARTITION_NONE] < INT_MAX + ? partition_cost[PARTITION_NONE] + : 0; + } + int64_t partition_rd_cost = RDCOST(x->rdmult, pt_cost, 0); + int64_t best_remain_rdcost = best_rdc.rdcost == INT64_MAX + ? INT64_MAX + : (best_rdc.rdcost - partition_rd_cost); + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, + PARTITION_NONE, bsize, ctx_none, best_remain_rdcost); + + pc_tree->pc_tree_stats.rdcost = ctx_none->rdcost; + pc_tree->pc_tree_stats.skip = ctx_none->skip; + + if (none_rd) *none_rd = this_rdc.rdcost; + if (this_rdc.rate != INT_MAX) { + if (bsize_at_least_8x8) { + this_rdc.rate += pt_cost; + this_rdc.rdcost = RDCOST(x->rdmult, this_rdc.rate, this_rdc.dist); + } + + if (this_rdc.rdcost < best_rdc.rdcost) { + // Adjust dist breakout threshold according to the partition size. + const int64_t dist_breakout_thr = + cpi->sf.partition_search_breakout_dist_thr >> + ((2 * (MAX_SB_SIZE_LOG2 - 2)) - + (mi_size_wide_log2[bsize] + mi_size_high_log2[bsize])); + const int rate_breakout_thr = + cpi->sf.partition_search_breakout_rate_thr * + num_pels_log2_lookup[bsize]; + + best_rdc = this_rdc; + if (bsize_at_least_8x8) pc_tree->partitioning = PARTITION_NONE; + + pc_tree->cb_search_range = SEARCH_FULL_PLANE; + + // If all y, u, v transform blocks in this partition are skippable, and + // the dist & rate are within the thresholds, the partition search is + // terminated for current branch of the partition search tree. + // The dist & rate thresholds are set to 0 at speed 0 to disable the + // early termination at that speed. + if (!x->e_mbd.lossless[xd->mi[0]->segment_id] && + (ctx_none->skippable && best_rdc.dist < dist_breakout_thr && + best_rdc.rate < rate_breakout_thr)) { + do_square_split = 0; + } + } + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + // store estimated motion vector + if (cpi->sf.adaptive_motion_search) store_pred_mv(x, ctx_none); + + int64_t temp_best_rdcost = best_rdc.rdcost; + pn_rdc = best_rdc; + + // PARTITION_SPLIT + if (do_square_split) { + int reached_last_index = 0; + subsize = get_partition_subsize(bsize, PARTITION_SPLIT); + int idx; + + for (idx = 0; idx < 4 && sum_rdc.rdcost < temp_best_rdcost; ++idx) { + const int x_idx = (idx & 1) * mi_step; + const int y_idx = (idx >> 1) * mi_step; + + if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols) + continue; + + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_none); + + pc_tree->split[idx]->index = idx; + int64_t *p_split_rd = &split_rd[idx]; + // TODO(Cherma) : Account for partition cost while passing best rd to + // rd_pick_sqr_partition() + rd_pick_sqr_partition(cpi, td, tile_data, tp, mi_row + y_idx, + mi_col + x_idx, subsize, &this_rdc, + temp_best_rdcost - sum_rdc.rdcost, + pc_tree->split[idx], p_split_rd); + + pc_tree->pc_tree_stats.sub_block_rdcost[idx] = this_rdc.rdcost; + pc_tree->pc_tree_stats.sub_block_skip[idx] = + pc_tree->split[idx]->none.skip; + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + break; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + } + } + reached_last_index = (idx == 4); + + if (reached_last_index && sum_rdc.rdcost < best_rdc.rdcost) { + sum_rdc.rate += partition_cost[PARTITION_SPLIT]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_SPLIT; + } + } + + int has_split = 0; + if (pc_tree->partitioning == PARTITION_SPLIT) { + for (int cb_idx = 0; cb_idx <= AOMMIN(idx, 3); ++cb_idx) { + if (pc_tree->split[cb_idx]->partitioning == PARTITION_SPLIT) + ++has_split; + } + + if (has_split >= 3 || sum_rdc.rdcost < (pn_rdc.rdcost >> 1)) { + pc_tree->cb_search_range = SPLIT_PLANE; + } + } + + if (pc_tree->partitioning == PARTITION_NONE) { + pc_tree->cb_search_range = SEARCH_SAME_PLANE; + if (pn_rdc.dist <= sum_rdc.dist) + pc_tree->cb_search_range = NONE_PARTITION_PLANE; + } + + if (pn_rdc.rate == INT_MAX) pc_tree->cb_search_range = NONE_PARTITION_PLANE; + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } // if (do_split) + + pc_tree->pc_tree_stats.split = pc_tree->partitioning == PARTITION_SPLIT; + if (do_square_split) { + for (int i = 0; i < 4; ++i) { + pc_tree->pc_tree_stats.sub_block_split[i] = + pc_tree->split[i]->partitioning == PARTITION_SPLIT; + } + } + + // TODO(jbb): This code added so that we avoid static analysis + // warning related to the fact that best_rd isn't used after this + // point. This code should be refactored so that the duplicate + // checks occur in some sub function and thus are used... + (void)best_rd; + *rd_cost = best_rdc; + + if (best_rdc.rate < INT_MAX && best_rdc.dist < INT64_MAX && + pc_tree->index != 3) { + if (bsize == cm->seq_params.sb_size) { + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } else { + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, DRY_RUN_NORMAL, bsize, + pc_tree, NULL); + } + } + + if (bsize == cm->seq_params.sb_size) { + assert(best_rdc.rate < INT_MAX); + assert(best_rdc.dist < INT64_MAX); + } else { + assert(tp_orig == *tp); + } +} + +#define FEATURE_SIZE 19 +static const float two_pass_split_partition_weights_128[FEATURE_SIZE + 1] = { + 2.683936f, -0.193620f, -4.106470f, -0.141320f, -0.282289f, + 0.125296f, -1.134961f, 0.862757f, -0.418799f, -0.637666f, + 0.016232f, 0.345013f, 0.018823f, -0.393394f, -1.130700f, + 0.695357f, 0.112569f, -0.341975f, -0.513882f, 5.7488966f, +}; + +static const float two_pass_split_partition_weights_64[FEATURE_SIZE + 1] = { + 2.990993f, 0.423273f, -0.926544f, 0.454646f, -0.292698f, + -1.311632f, -0.284432f, 0.717141f, -0.419257f, -0.574760f, + -0.674444f, 0.669047f, -0.374255f, 0.380624f, -0.804036f, + 0.264021f, 0.004163f, 1.896802f, 0.924287f, 0.13490619f, +}; + +static const float two_pass_split_partition_weights_32[FEATURE_SIZE + 1] = { + 2.795181f, -0.136943f, -0.924842f, 0.405330f, -0.463505f, + -0.584076f, -0.831472f, 0.382985f, -0.597544f, -0.138915f, + -1.354350f, 0.466035f, -0.553961f, 0.213202f, -1.166429f, + 0.010776f, -0.096236f, 2.335084f, 1.699857f, -0.58178353f, +}; + +static const float two_pass_split_partition_weights_16[FEATURE_SIZE + 1] = { + 1.987888f, -0.431100f, -1.687703f, 0.262602f, -0.425298f, + -0.463870f, -1.493457f, 0.470917f, -0.528457f, -0.087700f, + -1.815092f, 0.152883f, -0.337908f, 0.093679f, -1.548267f, + -0.042387f, -0.000861f, 2.556746f, 1.619192f, 0.03643292f, +}; + +static const float two_pass_split_partition_weights_8[FEATURE_SIZE + 1] = { + 2.188344f, -0.817528f, -2.119219f, 0.000000f, -0.348167f, + -0.658074f, -1.960362f, 0.000000f, -0.403080f, 0.282699f, + -2.061088f, 0.000000f, -0.431919f, -0.127960f, -1.099550f, + 0.000000f, 0.121622f, 2.017455f, 2.058228f, -0.15475988f, +}; + +static const float two_pass_none_partition_weights_128[FEATURE_SIZE + 1] = { + -1.006689f, 0.777908f, 4.461072f, -0.395782f, -0.014610f, + -0.853863f, 0.729997f, -0.420477f, 0.282429f, -1.194595f, + 3.181220f, -0.511416f, 0.117084f, -1.149348f, 1.507990f, + -0.477212f, 0.202963f, -1.469581f, 0.624461f, -0.89081228f, +}; + +static const float two_pass_none_partition_weights_64[FEATURE_SIZE + 1] = { + -1.241117f, 0.844878f, 5.638803f, -0.489780f, -0.108796f, + -4.576821f, 1.540624f, -0.477519f, 0.227791f, -1.443968f, + 1.586911f, -0.505125f, 0.140764f, -0.464194f, 1.466658f, + -0.641166f, 0.195412f, 1.427905f, 2.080007f, -1.98272777f, +}; + +static const float two_pass_none_partition_weights_32[FEATURE_SIZE + 1] = { + -2.130825f, 0.476023f, 5.907343f, -0.516002f, -0.097471f, + -2.662754f, 0.614858f, -0.576728f, 0.085261f, -0.031901f, + 0.727842f, -0.600034f, 0.079326f, 0.324328f, 0.504502f, + -0.547105f, -0.037670f, 0.304995f, 0.369018f, -2.66299987f, +}; + +static const float two_pass_none_partition_weights_16[FEATURE_SIZE + 1] = { + -1.626410f, 0.872047f, 5.414965f, -0.554781f, -0.084514f, + -3.020550f, 0.467632f, -0.382280f, 0.199568f, 0.426220f, + 0.829426f, -0.467100f, 0.153098f, 0.662994f, 0.327545f, + -0.560106f, -0.141610f, 0.403372f, 0.523991f, -3.02891231f, +}; + +static const float two_pass_none_partition_weights_8[FEATURE_SIZE + 1] = { + -1.463349f, 0.375376f, 4.751430f, 0.000000f, -0.184451f, + -1.655447f, 0.443214f, 0.000000f, 0.127961f, 0.152435f, + 0.083288f, 0.000000f, 0.143105f, 0.438012f, 0.073238f, + 0.000000f, -0.278137f, 0.186134f, 0.073737f, -1.6494962f, +}; + +// split_score indicates confidence of picking split partition; +// none_score indicates confidence of picking none partition; +static int ml_prune_2pass_split_partition(const PC_TREE_STATS *pc_tree_stats, + BLOCK_SIZE bsize, int *split_score, + int *none_score) { + if (!pc_tree_stats->valid) return 0; + const float *split_weights = NULL; + const float *none_weights = NULL; + switch (bsize) { + case BLOCK_4X4: break; + case BLOCK_8X8: + split_weights = two_pass_split_partition_weights_8; + none_weights = two_pass_none_partition_weights_8; + break; + case BLOCK_16X16: + split_weights = two_pass_split_partition_weights_16; + none_weights = two_pass_none_partition_weights_16; + break; + case BLOCK_32X32: + split_weights = two_pass_split_partition_weights_32; + none_weights = two_pass_none_partition_weights_32; + break; + case BLOCK_64X64: + split_weights = two_pass_split_partition_weights_64; + none_weights = two_pass_none_partition_weights_64; + break; + case BLOCK_128X128: + split_weights = two_pass_split_partition_weights_128; + none_weights = two_pass_none_partition_weights_128; + break; + default: assert(0 && "Unexpected bsize."); + } + if (!split_weights || !none_weights) return 0; + + aom_clear_system_state(); + + float features[FEATURE_SIZE]; + int feature_index = 0; + features[feature_index++] = (float)pc_tree_stats->split; + features[feature_index++] = (float)pc_tree_stats->skip; + const int rdcost = (int)AOMMIN(INT_MAX, pc_tree_stats->rdcost); + const int rd_valid = rdcost > 0 && rdcost < 1000000000; + features[feature_index++] = (float)rd_valid; + for (int i = 0; i < 4; ++i) { + features[feature_index++] = (float)pc_tree_stats->sub_block_split[i]; + features[feature_index++] = (float)pc_tree_stats->sub_block_skip[i]; + const int sub_rdcost = + (int)AOMMIN(INT_MAX, pc_tree_stats->sub_block_rdcost[i]); + const int sub_rd_valid = sub_rdcost > 0 && sub_rdcost < 1000000000; + features[feature_index++] = (float)sub_rd_valid; + // Ratio between the sub-block RD and the whole-block RD. + float rd_ratio = 1.0f; + if (rd_valid && sub_rd_valid && sub_rdcost < rdcost) + rd_ratio = (float)sub_rdcost / (float)rdcost; + features[feature_index++] = rd_ratio; + } + assert(feature_index == FEATURE_SIZE); + + float score_1 = split_weights[FEATURE_SIZE]; + float score_2 = none_weights[FEATURE_SIZE]; + for (int i = 0; i < FEATURE_SIZE; ++i) { + score_1 += features[i] * split_weights[i]; + score_2 += features[i] * none_weights[i]; + } + *split_score = (int)(score_1 * 100); + *none_score = (int)(score_2 * 100); + return 1; +} +#undef FEATURE_SIZE + +static void ml_prune_rect_partition(const AV1_COMP *const cpi, + const MACROBLOCK *const x, BLOCK_SIZE bsize, + int64_t best_rd, int64_t none_rd, + int64_t *split_rd, + int *const dst_prune_horz, + int *const dst_prune_vert) { + if (bsize < BLOCK_8X8 || best_rd >= 1000000000) return; + best_rd = AOMMAX(best_rd, 1); + const NN_CONFIG *nn_config = NULL; + const float prob_thresholds[5] = { 0.01f, 0.01f, 0.004f, 0.002f, 0.002f }; + float cur_thresh = 0.0f; + switch (bsize) { + case BLOCK_8X8: + nn_config = &av1_rect_partition_nnconfig_8; + cur_thresh = prob_thresholds[0]; + break; + case BLOCK_16X16: + nn_config = &av1_rect_partition_nnconfig_16; + cur_thresh = prob_thresholds[1]; + break; + case BLOCK_32X32: + nn_config = &av1_rect_partition_nnconfig_32; + cur_thresh = prob_thresholds[2]; + break; + case BLOCK_64X64: + nn_config = &av1_rect_partition_nnconfig_64; + cur_thresh = prob_thresholds[3]; + break; + case BLOCK_128X128: + nn_config = &av1_rect_partition_nnconfig_128; + cur_thresh = prob_thresholds[4]; + break; + default: assert(0 && "Unexpected bsize."); + } + if (!nn_config) return; + aom_clear_system_state(); + + // 1. Compute input features + float features[9]; + + // RD cost ratios + for (int i = 0; i < 5; i++) features[i] = 1.0f; + if (none_rd > 0 && none_rd < 1000000000) + features[0] = (float)none_rd / (float)best_rd; + for (int i = 0; i < 4; i++) { + if (split_rd[i] > 0 && split_rd[i] < 1000000000) + features[1 + i] = (float)split_rd[i] / (float)best_rd; + } + + // Variance ratios + const MACROBLOCKD *const xd = &x->e_mbd; + int whole_block_variance; + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + whole_block_variance = av1_high_get_sby_perpixel_variance( + cpi, &x->plane[0].src, bsize, xd->bd); + } else { + whole_block_variance = + av1_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize); + } + whole_block_variance = AOMMAX(whole_block_variance, 1); + + int split_variance[4]; + const BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_SPLIT); + struct buf_2d buf; + buf.stride = x->plane[0].src.stride; + const int bw = block_size_wide[bsize]; + for (int i = 0; i < 4; ++i) { + const int x_idx = (i & 1) * bw / 2; + const int y_idx = (i >> 1) * bw / 2; + buf.buf = x->plane[0].src.buf + x_idx + y_idx * buf.stride; + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + split_variance[i] = + av1_high_get_sby_perpixel_variance(cpi, &buf, subsize, xd->bd); + } else { + split_variance[i] = av1_get_sby_perpixel_variance(cpi, &buf, subsize); + } + } + + for (int i = 0; i < 4; i++) + features[5 + i] = (float)split_variance[i] / (float)whole_block_variance; + + // 2. Do the prediction and prune 0-2 partitions based on their probabilities + float raw_scores[3] = { 0.0f }; + av1_nn_predict(features, nn_config, raw_scores); + float probs[3] = { 0.0f }; + av1_nn_softmax(raw_scores, probs, 3); + + // probs[0] is the probability of the fact that both rectangular partitions + // are worse than current best_rd + if (probs[1] <= cur_thresh) (*dst_prune_horz) = 1; + if (probs[2] <= cur_thresh) (*dst_prune_vert) = 1; +} + +// Use a ML model to predict if horz_a, horz_b, vert_a, and vert_b should be +// considered. +static void ml_prune_ab_partition(BLOCK_SIZE bsize, int part_ctx, int var_ctx, + int64_t best_rd, int64_t horz_rd[2], + int64_t vert_rd[2], int64_t split_rd[4], + int *const horza_partition_allowed, + int *const horzb_partition_allowed, + int *const verta_partition_allowed, + int *const vertb_partition_allowed) { + if (bsize < BLOCK_8X8 || best_rd >= 1000000000) return; + const NN_CONFIG *nn_config = NULL; + switch (bsize) { + case BLOCK_8X8: nn_config = NULL; break; + case BLOCK_16X16: nn_config = &av1_ab_partition_nnconfig_16; break; + case BLOCK_32X32: nn_config = &av1_ab_partition_nnconfig_32; break; + case BLOCK_64X64: nn_config = &av1_ab_partition_nnconfig_64; break; + case BLOCK_128X128: nn_config = &av1_ab_partition_nnconfig_128; break; + default: assert(0 && "Unexpected bsize."); + } + if (!nn_config) return; + + aom_clear_system_state(); + + // Generate features. + float features[10]; + int feature_index = 0; + features[feature_index++] = (float)part_ctx; + features[feature_index++] = (float)var_ctx; + const int rdcost = (int)AOMMIN(INT_MAX, best_rd); + int sub_block_rdcost[8] = { 0 }; + int rd_index = 0; + for (int i = 0; i < 2; ++i) { + if (horz_rd[i] > 0 && horz_rd[i] < 1000000000) + sub_block_rdcost[rd_index] = (int)horz_rd[i]; + ++rd_index; + } + for (int i = 0; i < 2; ++i) { + if (vert_rd[i] > 0 && vert_rd[i] < 1000000000) + sub_block_rdcost[rd_index] = (int)vert_rd[i]; + ++rd_index; + } + for (int i = 0; i < 4; ++i) { + if (split_rd[i] > 0 && split_rd[i] < 1000000000) + sub_block_rdcost[rd_index] = (int)split_rd[i]; + ++rd_index; + } + for (int i = 0; i < 8; ++i) { + // Ratio between the sub-block RD and the whole-block RD. + float rd_ratio = 1.0f; + if (sub_block_rdcost[i] > 0 && sub_block_rdcost[i] < rdcost) + rd_ratio = (float)sub_block_rdcost[i] / (float)rdcost; + features[feature_index++] = rd_ratio; + } + assert(feature_index == 10); + + // Calculate scores using the NN model. + float score[16] = { 0.0f }; + av1_nn_predict(features, nn_config, score); + int int_score[16]; + int max_score = -1000; + for (int i = 0; i < 16; ++i) { + int_score[i] = (int)(100 * score[i]); + max_score = AOMMAX(int_score[i], max_score); + } + + // Make decisions based on the model scores. + int thresh = max_score; + switch (bsize) { + case BLOCK_16X16: thresh -= 150; break; + case BLOCK_32X32: thresh -= 100; break; + default: break; + } + *horza_partition_allowed = 0; + *horzb_partition_allowed = 0; + *verta_partition_allowed = 0; + *vertb_partition_allowed = 0; + for (int i = 0; i < 16; ++i) { + if (int_score[i] >= thresh) { + if ((i >> 0) & 1) *horza_partition_allowed = 1; + if ((i >> 1) & 1) *horzb_partition_allowed = 1; + if ((i >> 2) & 1) *verta_partition_allowed = 1; + if ((i >> 3) & 1) *vertb_partition_allowed = 1; + } + } +} + +#define FEATURES 18 +#define LABELS 4 +// Use a ML model to predict if horz4 and vert4 should be considered. +static void ml_prune_4_partition(const AV1_COMP *const cpi, MACROBLOCK *const x, + BLOCK_SIZE bsize, int part_ctx, + int64_t best_rd, int64_t horz_rd[2], + int64_t vert_rd[2], int64_t split_rd[4], + int *const partition_horz4_allowed, + int *const partition_vert4_allowed, + unsigned int pb_source_variance, int mi_row, + int mi_col) { + if (best_rd >= 1000000000) return; + const NN_CONFIG *nn_config = NULL; + switch (bsize) { + case BLOCK_16X16: nn_config = &av1_4_partition_nnconfig_16; break; + case BLOCK_32X32: nn_config = &av1_4_partition_nnconfig_32; break; + case BLOCK_64X64: nn_config = &av1_4_partition_nnconfig_64; break; + default: assert(0 && "Unexpected bsize."); + } + if (!nn_config) return; + + aom_clear_system_state(); + + // Generate features. + float features[FEATURES]; + int feature_index = 0; + features[feature_index++] = (float)part_ctx; + features[feature_index++] = (float)get_unsigned_bits(pb_source_variance); + + const int rdcost = (int)AOMMIN(INT_MAX, best_rd); + int sub_block_rdcost[8] = { 0 }; + int rd_index = 0; + for (int i = 0; i < 2; ++i) { + if (horz_rd[i] > 0 && horz_rd[i] < 1000000000) + sub_block_rdcost[rd_index] = (int)horz_rd[i]; + ++rd_index; + } + for (int i = 0; i < 2; ++i) { + if (vert_rd[i] > 0 && vert_rd[i] < 1000000000) + sub_block_rdcost[rd_index] = (int)vert_rd[i]; + ++rd_index; + } + for (int i = 0; i < 4; ++i) { + if (split_rd[i] > 0 && split_rd[i] < 1000000000) + sub_block_rdcost[rd_index] = (int)split_rd[i]; + ++rd_index; + } + for (int i = 0; i < 8; ++i) { + // Ratio between the sub-block RD and the whole-block RD. + float rd_ratio = 1.0f; + if (sub_block_rdcost[i] > 0 && sub_block_rdcost[i] < rdcost) + rd_ratio = (float)sub_block_rdcost[i] / (float)rdcost; + features[feature_index++] = rd_ratio; + } + + // Get variance of the 1:4 and 4:1 sub-blocks. + unsigned int horz_4_source_var[4] = { 0 }; + unsigned int vert_4_source_var[4] = { 0 }; + { + BLOCK_SIZE horz_4_bs = get_partition_subsize(bsize, PARTITION_HORZ_4); + BLOCK_SIZE vert_4_bs = get_partition_subsize(bsize, PARTITION_VERT_4); + av1_setup_src_planes(x, cpi->source, mi_row, mi_col, + av1_num_planes(&cpi->common)); + const int src_stride = x->plane[0].src.stride; + const uint8_t *src = x->plane[0].src.buf; + const MACROBLOCKD *const xd = &x->e_mbd; + for (int i = 0; i < 4; ++i) { + const uint8_t *horz_src = + src + i * block_size_high[horz_4_bs] * src_stride; + const uint8_t *vert_src = src + i * block_size_wide[vert_4_bs]; + unsigned int horz_var, vert_var, sse; + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + switch (xd->bd) { + case 10: + horz_var = cpi->fn_ptr[horz_4_bs].vf( + horz_src, src_stride, CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_10), + 0, &sse); + vert_var = cpi->fn_ptr[vert_4_bs].vf( + vert_src, src_stride, CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_10), + 0, &sse); + break; + case 12: + horz_var = cpi->fn_ptr[horz_4_bs].vf( + horz_src, src_stride, CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_12), + 0, &sse); + vert_var = cpi->fn_ptr[vert_4_bs].vf( + vert_src, src_stride, CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_12), + 0, &sse); + break; + case 8: + default: + horz_var = cpi->fn_ptr[horz_4_bs].vf( + horz_src, src_stride, CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_8), + 0, &sse); + vert_var = cpi->fn_ptr[vert_4_bs].vf( + vert_src, src_stride, CONVERT_TO_BYTEPTR(AV1_HIGH_VAR_OFFS_8), + 0, &sse); + break; + } + horz_4_source_var[i] = + ROUND_POWER_OF_TWO(horz_var, num_pels_log2_lookup[horz_4_bs]); + vert_4_source_var[i] = + ROUND_POWER_OF_TWO(vert_var, num_pels_log2_lookup[vert_4_bs]); + } else { + horz_var = cpi->fn_ptr[horz_4_bs].vf(horz_src, src_stride, AV1_VAR_OFFS, + 0, &sse); + vert_var = cpi->fn_ptr[vert_4_bs].vf(vert_src, src_stride, AV1_VAR_OFFS, + 0, &sse); + horz_4_source_var[i] = + ROUND_POWER_OF_TWO(horz_var, num_pels_log2_lookup[horz_4_bs]); + vert_4_source_var[i] = + ROUND_POWER_OF_TWO(vert_var, num_pels_log2_lookup[vert_4_bs]); + } + } + } + + const float denom = (float)(pb_source_variance + 1); + const float low_b = 0.1f; + const float high_b = 10.0f; + for (int i = 0; i < 4; ++i) { + // Ratio between the 4:1 sub-block variance and the whole-block variance. + float var_ratio = (float)(horz_4_source_var[i] + 1) / denom; + if (var_ratio < low_b) var_ratio = low_b; + if (var_ratio > high_b) var_ratio = high_b; + features[feature_index++] = var_ratio; + } + for (int i = 0; i < 4; ++i) { + // Ratio between the 1:4 sub-block RD and the whole-block RD. + float var_ratio = (float)(vert_4_source_var[i] + 1) / denom; + if (var_ratio < low_b) var_ratio = low_b; + if (var_ratio > high_b) var_ratio = high_b; + features[feature_index++] = var_ratio; + } + assert(feature_index == FEATURES); + + // Calculate scores using the NN model. + float score[LABELS] = { 0.0f }; + av1_nn_predict(features, nn_config, score); + int int_score[LABELS]; + int max_score = -1000; + for (int i = 0; i < LABELS; ++i) { + int_score[i] = (int)(100 * score[i]); + max_score = AOMMAX(int_score[i], max_score); + } + + // Make decisions based on the model scores. + int thresh = max_score; + switch (bsize) { + case BLOCK_16X16: thresh -= 500; break; + case BLOCK_32X32: thresh -= 500; break; + case BLOCK_64X64: thresh -= 200; break; + default: break; + } + *partition_horz4_allowed = 0; + *partition_vert4_allowed = 0; + for (int i = 0; i < LABELS; ++i) { + if (int_score[i] >= thresh) { + if ((i >> 0) & 1) *partition_horz4_allowed = 1; + if ((i >> 1) & 1) *partition_vert4_allowed = 1; + } + } +} +#undef FEATURES +#undef LABELS + +#define FEATURES 4 +// ML-based partition search breakout. +static int ml_predict_breakout(const AV1_COMP *const cpi, BLOCK_SIZE bsize, + const MACROBLOCK *const x, + const RD_STATS *const rd_stats, + unsigned int pb_source_variance) { + const NN_CONFIG *nn_config = NULL; + int thresh = 0; + switch (bsize) { + case BLOCK_8X8: + nn_config = &av1_partition_breakout_nnconfig_8; + thresh = cpi->sf.ml_partition_search_breakout_thresh[0]; + break; + case BLOCK_16X16: + nn_config = &av1_partition_breakout_nnconfig_16; + thresh = cpi->sf.ml_partition_search_breakout_thresh[1]; + break; + case BLOCK_32X32: + nn_config = &av1_partition_breakout_nnconfig_32; + thresh = cpi->sf.ml_partition_search_breakout_thresh[2]; + break; + case BLOCK_64X64: + nn_config = &av1_partition_breakout_nnconfig_64; + thresh = cpi->sf.ml_partition_search_breakout_thresh[3]; + break; + case BLOCK_128X128: + nn_config = &av1_partition_breakout_nnconfig_128; + thresh = cpi->sf.ml_partition_search_breakout_thresh[4]; + break; + default: assert(0 && "Unexpected bsize."); + } + if (!nn_config || thresh < 0) return 0; + + // Generate feature values. + float features[FEATURES]; + int feature_index = 0; + aom_clear_system_state(); + + const int num_pels_log2 = num_pels_log2_lookup[bsize]; + float rate_f = (float)AOMMIN(rd_stats->rate, INT_MAX); + rate_f = ((float)x->rdmult / 128.0f / 512.0f / (float)(1 << num_pels_log2)) * + rate_f; + features[feature_index++] = rate_f; + + const float dist_f = + (float)(AOMMIN(rd_stats->dist, INT_MAX) >> num_pels_log2); + features[feature_index++] = dist_f; + + features[feature_index++] = (float)pb_source_variance; + + const int dc_q = (int)x->plane[0].dequant_QTX[0]; + features[feature_index++] = (float)(dc_q * dc_q) / 256.0f; + assert(feature_index == FEATURES); + + // Calculate score using the NN model. + float score = 0.0f; + av1_nn_predict(features, nn_config, &score); + + // Make decision. + return (int)(score * 100) >= thresh; +} +#undef FEATURES + +// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are +// unlikely to be selected depending on previous rate-distortion optimization +// results, for encoding speed-up. +static void rd_pick_partition(AV1_COMP *const cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, + int mi_row, int mi_col, BLOCK_SIZE bsize, + RD_STATS *rd_cost, int64_t best_rd, + PC_TREE *pc_tree, int64_t *none_rd) { + const AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int mi_step = mi_size_wide[bsize] / 2; + RD_SEARCH_MACROBLOCK_CONTEXT x_ctx; + const TOKENEXTRA *const tp_orig = *tp; + PICK_MODE_CONTEXT *ctx_none = &pc_tree->none; + int tmp_partition_cost[PARTITION_TYPES]; + BLOCK_SIZE subsize; + RD_STATS this_rdc, sum_rdc, best_rdc; + const int bsize_at_least_8x8 = (bsize >= BLOCK_8X8); + int do_square_split = bsize_at_least_8x8; + const int pl = bsize_at_least_8x8 + ? partition_plane_context(xd, mi_row, mi_col, bsize) + : 0; + const int *partition_cost = + pl >= 0 ? x->partition_cost[pl] : x->partition_cost[0]; + + int do_rectangular_split = 1; + int64_t cur_none_rd = 0; + int64_t split_rd[4] = { 0, 0, 0, 0 }; + int64_t horz_rd[2] = { 0, 0 }; + int64_t vert_rd[2] = { 0, 0 }; + + int split_ctx_is_ready[2] = { 0, 0 }; + int horz_ctx_is_ready = 0; + int vert_ctx_is_ready = 0; + BLOCK_SIZE bsize2 = get_partition_subsize(bsize, PARTITION_SPLIT); + + if (best_rd < 0) { + pc_tree->none.rdcost = INT64_MAX; + pc_tree->none.skip = 0; + av1_invalid_rd_stats(rd_cost); + return; + } + if (bsize == cm->seq_params.sb_size) x->must_find_valid_partition = 0; + + // Override skipping rectangular partition operations for edge blocks + const int has_rows = (mi_row + mi_step < cm->mi_rows); + const int has_cols = (mi_col + mi_step < cm->mi_cols); + const int xss = x->e_mbd.plane[1].subsampling_x; + const int yss = x->e_mbd.plane[1].subsampling_y; + + BLOCK_SIZE min_size = x->min_partition_size; + BLOCK_SIZE max_size = x->max_partition_size; + + if (none_rd) *none_rd = 0; + +#if CONFIG_FP_MB_STATS + unsigned int src_diff_var = UINT_MAX; + int none_complexity = 0; +#endif + + int partition_none_allowed = has_rows && has_cols; + int partition_horz_allowed = has_cols && yss <= xss && bsize_at_least_8x8; + int partition_vert_allowed = has_rows && xss <= yss && bsize_at_least_8x8; + + (void)*tp_orig; + + // Override partition costs at the edges of the frame in the same + // way as in read_partition (see decodeframe.c) + if (!(has_rows && has_cols)) { + assert(bsize_at_least_8x8 && pl >= 0); + const aom_cdf_prob *partition_cdf = cm->fc->partition_cdf[pl]; + for (int i = 0; i < PARTITION_TYPES; ++i) tmp_partition_cost[i] = INT_MAX; + if (has_cols) { + // At the bottom, the two possibilities are HORZ and SPLIT + aom_cdf_prob bot_cdf[2]; + partition_gather_vert_alike(bot_cdf, partition_cdf, bsize); + static const int bot_inv_map[2] = { PARTITION_HORZ, PARTITION_SPLIT }; + av1_cost_tokens_from_cdf(tmp_partition_cost, bot_cdf, bot_inv_map); + } else if (has_rows) { + // At the right, the two possibilities are VERT and SPLIT + aom_cdf_prob rhs_cdf[2]; + partition_gather_horz_alike(rhs_cdf, partition_cdf, bsize); + static const int rhs_inv_map[2] = { PARTITION_VERT, PARTITION_SPLIT }; + av1_cost_tokens_from_cdf(tmp_partition_cost, rhs_cdf, rhs_inv_map); + } else { + // At the bottom right, we always split + tmp_partition_cost[PARTITION_SPLIT] = 0; + } + + partition_cost = tmp_partition_cost; + } + +#ifndef NDEBUG + // Nothing should rely on the default value of this array (which is just + // leftover from encoding the previous block. Setting it to fixed pattern + // when debugging. + // bit 0, 1, 2 are blk_skip of each plane + // bit 4, 5, 6 are initialization checking of each plane + memset(x->blk_skip, 0x77, sizeof(x->blk_skip)); +#endif // NDEBUG + + assert(mi_size_wide[bsize] == mi_size_high[bsize]); + + av1_init_rd_stats(&this_rdc); + av1_invalid_rd_stats(&best_rdc); + best_rdc.rdcost = best_rd; + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + + if (bsize == BLOCK_16X16 && cpi->vaq_refresh) + x->mb_energy = av1_log_block_var(cpi, x, bsize); + + if (cpi->sf.cb_partition_search && bsize == BLOCK_16X16) { + const int cb_partition_search_ctrl = + ((pc_tree->index == 0 || pc_tree->index == 3) + + get_chessboard_index(cm->current_video_frame)) & + 0x1; + + if (cb_partition_search_ctrl && bsize > min_size && bsize < max_size) + set_partition_range(cm, xd, mi_row, mi_col, bsize, &min_size, &max_size); + } + + // Determine partition types in search according to the speed features. + // The threshold set here has to be of square block size. + if (cpi->sf.auto_min_max_partition_size) { + const int no_partition_allowed = (bsize <= max_size && bsize >= min_size); + // Note: Further partitioning is NOT allowed when bsize == min_size already. + const int partition_allowed = (bsize <= max_size && bsize > min_size); + partition_none_allowed &= no_partition_allowed; + partition_horz_allowed &= partition_allowed || !has_rows; + partition_vert_allowed &= partition_allowed || !has_cols; + do_square_split &= bsize > min_size; + } + + if (bsize > cpi->sf.use_square_partition_only_threshold) { + partition_horz_allowed &= !has_rows; + partition_vert_allowed &= !has_cols; + } + + if (bsize > BLOCK_4X4 && x->use_cb_search_range && + cpi->sf.auto_min_max_partition_size == 0) { + int split_score = 0; + int none_score = 0; + const int score_valid = ml_prune_2pass_split_partition( + &pc_tree->pc_tree_stats, bsize, &split_score, &none_score); + if (score_valid) { + { + const int only_split_thresh = 300; + const int no_none_thresh = 250; + const int no_split_thresh = 0; + if (split_score > only_split_thresh) { + partition_none_allowed = 0; + partition_horz_allowed = 0; + partition_vert_allowed = 0; + } else if (split_score > no_none_thresh) { + partition_none_allowed = 0; + } + if (split_score < no_split_thresh) do_square_split = 0; + } + { + const int no_split_thresh = 120; + const int no_none_thresh = -120; + if (none_score > no_split_thresh && partition_none_allowed) + do_square_split = 0; + if (none_score < no_none_thresh) partition_none_allowed = 0; + } + } else { + if (pc_tree->cb_search_range == SPLIT_PLANE) { + partition_none_allowed = 0; + partition_horz_allowed = 0; + partition_vert_allowed = 0; + } + if (pc_tree->cb_search_range == SEARCH_SAME_PLANE) do_square_split = 0; + if (pc_tree->cb_search_range == NONE_PARTITION_PLANE) { + do_square_split = 0; + partition_horz_allowed = 0; + partition_vert_allowed = 0; + } + } + + // Fall back to default values in case all partition modes are rejected. + if (partition_none_allowed == 0 && do_square_split == 0 && + partition_horz_allowed == 0 && partition_vert_allowed == 0) { + do_square_split = bsize_at_least_8x8; + partition_none_allowed = has_rows && has_cols; + partition_horz_allowed = has_cols && yss <= xss && bsize_at_least_8x8; + partition_vert_allowed = has_rows && xss <= yss && bsize_at_least_8x8; + } + } + + xd->above_txfm_context = cm->above_txfm_context[tile_info->tile_row] + mi_col; + xd->left_txfm_context = + xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); + save_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + +#if CONFIG_FP_MB_STATS + if (cpi->use_fp_mb_stats) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + src_diff_var = get_sby_perpixel_diff_variance(cpi, &x->plane[0].src, mi_row, + mi_col, bsize); + } + + // Decide whether we shall split directly and skip searching NONE by using + // the first pass block statistics + if (cpi->use_fp_mb_stats && bsize >= BLOCK_32X32 && do_square_split && + partition_none_allowed && src_diff_var > 4 && + cm->base_qindex < qindex_split_threshold_lookup[bsize]) { + int mb_row = mi_row >> 1; + int mb_col = mi_col >> 1; + int mb_row_end = + AOMMIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows); + int mb_col_end = + AOMMIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols); + int r, c; + + // compute a complexity measure, basically measure inconsistency of motion + // vectors obtained from the first pass in the current block + for (r = mb_row; r < mb_row_end; r++) { + for (c = mb_col; c < mb_col_end; c++) { + const int mb_index = r * cm->mb_cols + c; + + MOTION_DIRECTION this_mv; + MOTION_DIRECTION right_mv; + MOTION_DIRECTION bottom_mv; + + this_mv = + get_motion_direction_fp(cpi->twopass.this_frame_mb_stats[mb_index]); + + // to its right + if (c != mb_col_end - 1) { + right_mv = get_motion_direction_fp( + cpi->twopass.this_frame_mb_stats[mb_index + 1]); + none_complexity += get_motion_inconsistency(this_mv, right_mv); + } + + // to its bottom + if (r != mb_row_end - 1) { + bottom_mv = get_motion_direction_fp( + cpi->twopass.this_frame_mb_stats[mb_index + cm->mb_cols]); + none_complexity += get_motion_inconsistency(this_mv, bottom_mv); + } + + // do not count its left and top neighbors to avoid double counting + } + } + + if (none_complexity > complexity_16x16_blocks_threshold[bsize]) { + partition_none_allowed = 0; + } + } +#endif + + // Ref frames picked in the [i_th] quarter subblock during square partition + // RD search. It may be used to prune ref frame selection of rect partitions. + int ref_frames_used[4] = { + 0, + }; + +BEGIN_PARTITION_SEARCH: + if (x->must_find_valid_partition) { + partition_none_allowed = has_rows && has_cols; + partition_horz_allowed = has_cols && yss <= xss && bsize_at_least_8x8; + partition_vert_allowed = has_rows && xss <= yss && bsize_at_least_8x8; + } + + // Partition block source pixel variance. + unsigned int pb_source_variance = UINT_MAX; + +#if CONFIG_DIST_8X8 + if (x->using_dist_8x8) { + if (block_size_high[bsize] <= 8) partition_horz_allowed = 0; + if (block_size_wide[bsize] <= 8) partition_vert_allowed = 0; + if (block_size_high[bsize] <= 8 || block_size_wide[bsize] <= 8) + do_square_split = 0; + } +#endif + + // PARTITION_NONE + if (partition_none_allowed) { + int pt_cost = 0; + if (bsize_at_least_8x8) { + pt_cost = partition_cost[PARTITION_NONE] < INT_MAX + ? partition_cost[PARTITION_NONE] + : 0; + } + int64_t partition_rd_cost = RDCOST(x->rdmult, pt_cost, 0); + int64_t best_remain_rdcost = (best_rdc.rdcost == INT64_MAX) + ? INT64_MAX + : (best_rdc.rdcost - partition_rd_cost); + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, + PARTITION_NONE, bsize, ctx_none, best_remain_rdcost); + pb_source_variance = x->source_variance; + if (none_rd) *none_rd = this_rdc.rdcost; + cur_none_rd = this_rdc.rdcost; + if (this_rdc.rate != INT_MAX) { + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + const int ref_type = av1_ref_frame_type(ctx_none->mic.ref_frame); + for (int i = 0; i < 4; ++i) { + ref_frames_used[i] |= (1 << ref_type); + } + } + if (bsize_at_least_8x8) { + this_rdc.rate += pt_cost; + this_rdc.rdcost = RDCOST(x->rdmult, this_rdc.rate, this_rdc.dist); + } + + if (this_rdc.rdcost < best_rdc.rdcost) { + // Adjust dist breakout threshold according to the partition size. + const int64_t dist_breakout_thr = + cpi->sf.partition_search_breakout_dist_thr >> + ((2 * (MAX_SB_SIZE_LOG2 - 2)) - + (mi_size_wide_log2[bsize] + mi_size_high_log2[bsize])); + const int rate_breakout_thr = + cpi->sf.partition_search_breakout_rate_thr * + num_pels_log2_lookup[bsize]; + + best_rdc = this_rdc; + if (bsize_at_least_8x8) pc_tree->partitioning = PARTITION_NONE; + + if ((do_square_split || do_rectangular_split) && + !x->e_mbd.lossless[xd->mi[0]->segment_id] && ctx_none->skippable) { + const int use_ml_based_breakout = + bsize <= cpi->sf.use_square_partition_only_threshold && + bsize > BLOCK_4X4 && xd->bd == 8; + if (use_ml_based_breakout) { + if (ml_predict_breakout(cpi, bsize, x, &this_rdc, + pb_source_variance)) { + do_square_split = 0; + do_rectangular_split = 0; + } + } + + // If all y, u, v transform blocks in this partition are skippable, + // and the dist & rate are within the thresholds, the partition + // search is terminated for current branch of the partition search + // tree. The dist & rate thresholds are set to 0 at speed 0 to + // disable the early termination at that speed. + if (best_rdc.dist < dist_breakout_thr && + best_rdc.rate < rate_breakout_thr) { + do_square_split = 0; + do_rectangular_split = 0; + } + } + +#if CONFIG_FP_MB_STATS + // Check if every 16x16 first pass block statistics has zero + // motion and the corresponding first pass residue is small enough. + // If that is the case, check the difference variance between the + // current frame and the last frame. If the variance is small enough, + // stop further splitting in RD optimization + if (cpi->use_fp_mb_stats && do_square_split && + cm->base_qindex > qindex_skip_threshold_lookup[bsize]) { + int mb_row = mi_row >> 1; + int mb_col = mi_col >> 1; + int mb_row_end = + AOMMIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows); + int mb_col_end = + AOMMIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols); + int r, c; + + int skip = 1; + for (r = mb_row; r < mb_row_end; r++) { + for (c = mb_col; c < mb_col_end; c++) { + const int mb_index = r * cm->mb_cols + c; + if (!(cpi->twopass.this_frame_mb_stats[mb_index] & + FPMB_MOTION_ZERO_MASK) || + !(cpi->twopass.this_frame_mb_stats[mb_index] & + FPMB_ERROR_SMALL_MASK)) { + skip = 0; + break; + } + } + if (skip == 0) { + break; + } + } + if (skip) { + if (src_diff_var == UINT_MAX) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + src_diff_var = get_sby_perpixel_diff_variance( + cpi, &x->plane[0].src, mi_row, mi_col, bsize); + } + if (src_diff_var < 8) { + do_square_split = 0; + do_rectangular_split = 0; + } + } + } +#endif + } + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + // store estimated motion vector + if (cpi->sf.adaptive_motion_search) store_pred_mv(x, ctx_none); + + // PARTITION_SPLIT + if (do_square_split) { + av1_init_rd_stats(&sum_rdc); + subsize = get_partition_subsize(bsize, PARTITION_SPLIT); + sum_rdc.rate = partition_cost[PARTITION_SPLIT]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, 0); + + int idx; + for (idx = 0; idx < 4 && sum_rdc.rdcost < best_rdc.rdcost; ++idx) { + const int x_idx = (idx & 1) * mi_step; + const int y_idx = (idx >> 1) * mi_step; + + if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols) + continue; + + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_none); + + pc_tree->split[idx]->index = idx; + int64_t *p_split_rd = &split_rd[idx]; + int64_t best_remain_rdcost = best_rdc.rdcost == INT64_MAX + ? INT64_MAX + : (best_rdc.rdcost - sum_rdc.rdcost); + if (cpi->sf.prune_ref_frame_for_rect_partitions) + pc_tree->split[idx]->none.rate = INT_MAX; + rd_pick_partition(cpi, td, tile_data, tp, mi_row + y_idx, mi_col + x_idx, + subsize, &this_rdc, best_remain_rdcost, + pc_tree->split[idx], p_split_rd); + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + break; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + if (cpi->sf.prune_ref_frame_for_rect_partitions && + pc_tree->split[idx]->none.rate != INT_MAX) { + const int ref_type = + av1_ref_frame_type(pc_tree->split[idx]->none.mic.ref_frame); + ref_frames_used[idx] |= (1 << ref_type); + } + if (idx <= 1 && (bsize <= BLOCK_8X8 || + pc_tree->split[idx]->partitioning == PARTITION_NONE)) { + const MB_MODE_INFO *const mbmi = &pc_tree->split[idx]->none.mic; + const PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info; + // Neither palette mode nor cfl predicted + if (pmi->palette_size[0] == 0 && pmi->palette_size[1] == 0) { + if (mbmi->uv_mode != UV_CFL_PRED) split_ctx_is_ready[idx] = 1; + } + } + } + } + const int reached_last_index = (idx == 4); + + if (reached_last_index && sum_rdc.rdcost < best_rdc.rdcost) { + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_SPLIT; + } + } else if (cpi->sf.less_rectangular_check_level > 0) { + // skip rectangular partition test when larger block size + // gives better rd cost + if (cpi->sf.less_rectangular_check_level == 2 || idx <= 2) + do_rectangular_split &= !partition_none_allowed; + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } // if (do_split) + + pc_tree->horizontal[0].skip_ref_frame_mask = 0; + pc_tree->horizontal[1].skip_ref_frame_mask = 0; + pc_tree->vertical[0].skip_ref_frame_mask = 0; + pc_tree->vertical[1].skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + int used_frames; + used_frames = ref_frames_used[0] | ref_frames_used[1]; + if (used_frames) pc_tree->horizontal[0].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[2] | ref_frames_used[3]; + if (used_frames) pc_tree->horizontal[1].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[0] | ref_frames_used[2]; + if (used_frames) pc_tree->vertical[0].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[1] | ref_frames_used[3]; + if (used_frames) pc_tree->vertical[1].skip_ref_frame_mask = ~used_frames; + } + + int prune_horz = 0; + int prune_vert = 0; + if (cpi->sf.ml_prune_rect_partition && !frame_is_intra_only(cm) && + (partition_horz_allowed || partition_vert_allowed)) { + av1_setup_src_planes(x, cpi->source, mi_row, mi_col, num_planes); + ml_prune_rect_partition(cpi, x, bsize, best_rdc.rdcost, cur_none_rd, + split_rd, &prune_horz, &prune_vert); + } + + // PARTITION_HORZ + if (partition_horz_allowed && !prune_horz && + (do_rectangular_split || active_h_edge(cpi, mi_row, mi_step))) { + av1_init_rd_stats(&sum_rdc); + subsize = get_partition_subsize(bsize, PARTITION_HORZ); + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_none); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) { + pc_tree->horizontal[0].pred_interp_filter = + av1_extract_interp_filter(ctx_none->mic.interp_filters, 0); + } + int64_t best_remain_rdcost = best_rdc.rdcost == INT64_MAX + ? INT64_MAX + : (best_rdc.rdcost - sum_rdc.rdcost); + sum_rdc.rate = partition_cost[PARTITION_HORZ]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, 0); + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, + PARTITION_HORZ, subsize, &pc_tree->horizontal[0], + best_remain_rdcost); + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + } + horz_rd[0] = this_rdc.rdcost; + + if (sum_rdc.rdcost < best_rdc.rdcost && has_rows) { + const PICK_MODE_CONTEXT *const ctx_h = &pc_tree->horizontal[0]; + const MB_MODE_INFO *const mbmi = &pc_tree->horizontal[0].mic; + const PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info; + // Neither palette mode nor cfl predicted + if (pmi->palette_size[0] == 0 && pmi->palette_size[1] == 0) { + if (mbmi->uv_mode != UV_CFL_PRED) horz_ctx_is_ready = 1; + } + update_state(cpi, tile_data, td, ctx_h, mi_row, mi_col, subsize, 1); + encode_superblock(cpi, tile_data, td, tp, DRY_RUN_NORMAL, mi_row, mi_col, + subsize, NULL); + + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_h); + + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) { + pc_tree->horizontal[1].pred_interp_filter = + av1_extract_interp_filter(ctx_h->mic.interp_filters, 0); + } + rd_pick_sb_modes(cpi, tile_data, x, mi_row + mi_step, mi_col, &this_rdc, + PARTITION_HORZ, subsize, &pc_tree->horizontal[1], + best_rdc.rdcost - sum_rdc.rdcost); + horz_rd[1] = this_rdc.rdcost; + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_HORZ; + } + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + // PARTITION_VERT + if (partition_vert_allowed && !prune_vert && + (do_rectangular_split || active_v_edge(cpi, mi_col, mi_step))) { + av1_init_rd_stats(&sum_rdc); + subsize = get_partition_subsize(bsize, PARTITION_VERT); + + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_none); + + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) { + pc_tree->vertical[0].pred_interp_filter = + av1_extract_interp_filter(ctx_none->mic.interp_filters, 0); + } + sum_rdc.rate = partition_cost[PARTITION_VERT]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, 0); + int64_t best_remain_rdcost = best_rdc.rdcost == INT64_MAX + ? INT64_MAX + : (best_rdc.rdcost - sum_rdc.rdcost); + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, + PARTITION_VERT, subsize, &pc_tree->vertical[0], + best_remain_rdcost); + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + } + vert_rd[0] = this_rdc.rdcost; + const int64_t vert_max_rdcost = best_rdc.rdcost; + if (sum_rdc.rdcost < vert_max_rdcost && has_cols) { + const MB_MODE_INFO *const mbmi = &pc_tree->vertical[0].mic; + const PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info; + // Neither palette mode nor cfl predicted + if (pmi->palette_size[0] == 0 && pmi->palette_size[1] == 0) { + if (mbmi->uv_mode != UV_CFL_PRED) vert_ctx_is_ready = 1; + } + update_state(cpi, tile_data, td, &pc_tree->vertical[0], mi_row, mi_col, + subsize, 1); + encode_superblock(cpi, tile_data, td, tp, DRY_RUN_NORMAL, mi_row, mi_col, + subsize, NULL); + + if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_none); + + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) { + pc_tree->vertical[1].pred_interp_filter = + av1_extract_interp_filter(ctx_none->mic.interp_filters, 0); + } + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col + mi_step, &this_rdc, + PARTITION_VERT, subsize, &pc_tree->vertical[1], + best_rdc.rdcost - sum_rdc.rdcost); + vert_rd[1] = this_rdc.rdcost; + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_VERT; + } + } + + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + if (pb_source_variance == UINT_MAX) { + av1_setup_src_planes(x, cpi->source, mi_row, mi_col, num_planes); + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + pb_source_variance = av1_high_get_sby_perpixel_variance( + cpi, &x->plane[0].src, bsize, xd->bd); + } else { + pb_source_variance = + av1_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize); + } + } + + const int ext_partition_allowed = + do_rectangular_split && bsize > BLOCK_8X8 && partition_none_allowed; + + // The standard AB partitions are allowed whenever ext-partition-types are + // allowed + int horzab_partition_allowed = ext_partition_allowed; + int vertab_partition_allowed = ext_partition_allowed; + +#if CONFIG_DIST_8X8 + if (x->using_dist_8x8) { + if (block_size_high[bsize] <= 8 || block_size_wide[bsize] <= 8) { + horzab_partition_allowed = 0; + vertab_partition_allowed = 0; + } + } +#endif + + if (cpi->sf.prune_ext_partition_types_search_level) { + if (cpi->sf.prune_ext_partition_types_search_level == 1) { + // TODO(debargha,huisu@google.com): may need to tune the threshold for + // pb_source_variance. + horzab_partition_allowed &= (pc_tree->partitioning == PARTITION_HORZ || + (pc_tree->partitioning == PARTITION_NONE && + pb_source_variance < 32) || + pc_tree->partitioning == PARTITION_SPLIT); + vertab_partition_allowed &= (pc_tree->partitioning == PARTITION_VERT || + (pc_tree->partitioning == PARTITION_NONE && + pb_source_variance < 32) || + pc_tree->partitioning == PARTITION_SPLIT); + } else { + horzab_partition_allowed &= (pc_tree->partitioning == PARTITION_HORZ || + pc_tree->partitioning == PARTITION_SPLIT); + vertab_partition_allowed &= (pc_tree->partitioning == PARTITION_VERT || + pc_tree->partitioning == PARTITION_SPLIT); + } + horz_rd[0] = (horz_rd[0] < INT64_MAX ? horz_rd[0] : 0); + horz_rd[1] = (horz_rd[1] < INT64_MAX ? horz_rd[1] : 0); + vert_rd[0] = (vert_rd[0] < INT64_MAX ? vert_rd[0] : 0); + vert_rd[1] = (vert_rd[1] < INT64_MAX ? vert_rd[1] : 0); + split_rd[0] = (split_rd[0] < INT64_MAX ? split_rd[0] : 0); + split_rd[1] = (split_rd[1] < INT64_MAX ? split_rd[1] : 0); + split_rd[2] = (split_rd[2] < INT64_MAX ? split_rd[2] : 0); + split_rd[3] = (split_rd[3] < INT64_MAX ? split_rd[3] : 0); + } + int horza_partition_allowed = horzab_partition_allowed; + int horzb_partition_allowed = horzab_partition_allowed; + if (cpi->sf.prune_ext_partition_types_search_level) { + const int64_t horz_a_rd = horz_rd[1] + split_rd[0] + split_rd[1]; + const int64_t horz_b_rd = horz_rd[0] + split_rd[2] + split_rd[3]; + switch (cpi->sf.prune_ext_partition_types_search_level) { + case 1: + horza_partition_allowed &= (horz_a_rd / 16 * 14 < best_rdc.rdcost); + horzb_partition_allowed &= (horz_b_rd / 16 * 14 < best_rdc.rdcost); + break; + case 2: + default: + horza_partition_allowed &= (horz_a_rd / 16 * 15 < best_rdc.rdcost); + horzb_partition_allowed &= (horz_b_rd / 16 * 15 < best_rdc.rdcost); + break; + } + } + + int verta_partition_allowed = vertab_partition_allowed; + int vertb_partition_allowed = vertab_partition_allowed; + if (cpi->sf.prune_ext_partition_types_search_level) { + const int64_t vert_a_rd = vert_rd[1] + split_rd[0] + split_rd[2]; + const int64_t vert_b_rd = vert_rd[0] + split_rd[1] + split_rd[3]; + switch (cpi->sf.prune_ext_partition_types_search_level) { + case 1: + verta_partition_allowed &= (vert_a_rd / 16 * 14 < best_rdc.rdcost); + vertb_partition_allowed &= (vert_b_rd / 16 * 14 < best_rdc.rdcost); + break; + case 2: + default: + verta_partition_allowed &= (vert_a_rd / 16 * 15 < best_rdc.rdcost); + vertb_partition_allowed &= (vert_b_rd / 16 * 15 < best_rdc.rdcost); + break; + } + } + + if (cpi->sf.ml_prune_ab_partition && ext_partition_allowed && + partition_horz_allowed && partition_vert_allowed) { + // TODO(huisu@google.com): x->source_variance may not be the current block's + // variance. The correct one to use is pb_source_variance. + // Need to re-train the model to fix it. + ml_prune_ab_partition(bsize, pc_tree->partitioning, + get_unsigned_bits(x->source_variance), + best_rdc.rdcost, horz_rd, vert_rd, split_rd, + &horza_partition_allowed, &horzb_partition_allowed, + &verta_partition_allowed, &vertb_partition_allowed); + } + + // PARTITION_HORZ_A + if (partition_horz_allowed && horza_partition_allowed) { + subsize = get_partition_subsize(bsize, PARTITION_HORZ_A); + pc_tree->horizontala[0].rd_mode_is_ready = 0; + pc_tree->horizontala[1].rd_mode_is_ready = 0; + pc_tree->horizontala[2].rd_mode_is_ready = 0; + if (split_ctx_is_ready[0]) { + av1_copy_tree_context(&pc_tree->horizontala[0], &pc_tree->split[0]->none); + pc_tree->horizontala[0].mic.partition = PARTITION_HORZ_A; + pc_tree->horizontala[0].rd_mode_is_ready = 1; + if (split_ctx_is_ready[1]) { + av1_copy_tree_context(&pc_tree->horizontala[1], + &pc_tree->split[1]->none); + pc_tree->horizontala[1].mic.partition = PARTITION_HORZ_A; + pc_tree->horizontala[1].rd_mode_is_ready = 1; + } + } + pc_tree->horizontala[0].skip_ref_frame_mask = 0; + pc_tree->horizontala[1].skip_ref_frame_mask = 0; + pc_tree->horizontala[2].skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + int used_frames; + used_frames = ref_frames_used[0]; + if (used_frames) + pc_tree->horizontala[0].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[1]; + if (used_frames) + pc_tree->horizontala[1].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[2] | ref_frames_used[3]; + if (used_frames) + pc_tree->horizontala[2].skip_ref_frame_mask = ~used_frames; + } + rd_test_partition3(cpi, td, tile_data, tp, pc_tree, &best_rdc, + pc_tree->horizontala, ctx_none, mi_row, mi_col, bsize, + PARTITION_HORZ_A, mi_row, mi_col, bsize2, mi_row, + mi_col + mi_step, bsize2, mi_row + mi_step, mi_col, + subsize); + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + // PARTITION_HORZ_B + if (partition_horz_allowed && horzb_partition_allowed) { + subsize = get_partition_subsize(bsize, PARTITION_HORZ_B); + pc_tree->horizontalb[0].rd_mode_is_ready = 0; + pc_tree->horizontalb[1].rd_mode_is_ready = 0; + pc_tree->horizontalb[2].rd_mode_is_ready = 0; + if (horz_ctx_is_ready) { + av1_copy_tree_context(&pc_tree->horizontalb[0], &pc_tree->horizontal[0]); + pc_tree->horizontalb[0].mic.partition = PARTITION_HORZ_B; + pc_tree->horizontalb[0].rd_mode_is_ready = 1; + } + pc_tree->horizontalb[0].skip_ref_frame_mask = 0; + pc_tree->horizontalb[1].skip_ref_frame_mask = 0; + pc_tree->horizontalb[2].skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + int used_frames; + used_frames = ref_frames_used[0] | ref_frames_used[1]; + if (used_frames) + pc_tree->horizontalb[0].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[2]; + if (used_frames) + pc_tree->horizontalb[1].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[3]; + if (used_frames) + pc_tree->horizontalb[2].skip_ref_frame_mask = ~used_frames; + } + rd_test_partition3(cpi, td, tile_data, tp, pc_tree, &best_rdc, + pc_tree->horizontalb, ctx_none, mi_row, mi_col, bsize, + PARTITION_HORZ_B, mi_row, mi_col, subsize, + mi_row + mi_step, mi_col, bsize2, mi_row + mi_step, + mi_col + mi_step, bsize2); + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + // PARTITION_VERT_A + if (partition_vert_allowed && verta_partition_allowed) { + subsize = get_partition_subsize(bsize, PARTITION_VERT_A); + pc_tree->verticala[0].rd_mode_is_ready = 0; + pc_tree->verticala[1].rd_mode_is_ready = 0; + pc_tree->verticala[2].rd_mode_is_ready = 0; + if (split_ctx_is_ready[0]) { + av1_copy_tree_context(&pc_tree->verticala[0], &pc_tree->split[0]->none); + pc_tree->verticala[0].mic.partition = PARTITION_VERT_A; + pc_tree->verticala[0].rd_mode_is_ready = 1; + } + pc_tree->verticala[0].skip_ref_frame_mask = 0; + pc_tree->verticala[1].skip_ref_frame_mask = 0; + pc_tree->verticala[2].skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + int used_frames; + used_frames = ref_frames_used[0]; + if (used_frames) pc_tree->verticala[0].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[2]; + if (used_frames) pc_tree->verticala[1].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[1] | ref_frames_used[3]; + if (used_frames) pc_tree->verticala[2].skip_ref_frame_mask = ~used_frames; + } + rd_test_partition3(cpi, td, tile_data, tp, pc_tree, &best_rdc, + pc_tree->verticala, ctx_none, mi_row, mi_col, bsize, + PARTITION_VERT_A, mi_row, mi_col, bsize2, + mi_row + mi_step, mi_col, bsize2, mi_row, + mi_col + mi_step, subsize); + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + // PARTITION_VERT_B + if (partition_vert_allowed && vertb_partition_allowed) { + subsize = get_partition_subsize(bsize, PARTITION_VERT_B); + pc_tree->verticalb[0].rd_mode_is_ready = 0; + pc_tree->verticalb[1].rd_mode_is_ready = 0; + pc_tree->verticalb[2].rd_mode_is_ready = 0; + if (vert_ctx_is_ready) { + av1_copy_tree_context(&pc_tree->verticalb[0], &pc_tree->vertical[0]); + pc_tree->verticalb[0].mic.partition = PARTITION_VERT_B; + pc_tree->verticalb[0].rd_mode_is_ready = 1; + } + pc_tree->verticalb[0].skip_ref_frame_mask = 0; + pc_tree->verticalb[1].skip_ref_frame_mask = 0; + pc_tree->verticalb[2].skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + int used_frames; + used_frames = ref_frames_used[0] | ref_frames_used[2]; + if (used_frames) pc_tree->verticalb[0].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[1]; + if (used_frames) pc_tree->verticalb[1].skip_ref_frame_mask = ~used_frames; + used_frames = ref_frames_used[3]; + if (used_frames) pc_tree->verticalb[2].skip_ref_frame_mask = ~used_frames; + } + rd_test_partition3(cpi, td, tile_data, tp, pc_tree, &best_rdc, + pc_tree->verticalb, ctx_none, mi_row, mi_col, bsize, + PARTITION_VERT_B, mi_row, mi_col, subsize, mi_row, + mi_col + mi_step, bsize2, mi_row + mi_step, + mi_col + mi_step, bsize2); + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + // partition4_allowed is 1 if we can use a PARTITION_HORZ_4 or + // PARTITION_VERT_4 for this block. This is almost the same as + // ext_partition_allowed, except that we don't allow 128x32 or 32x128 blocks, + // so we require that bsize is not BLOCK_128X128. + const int partition4_allowed = + ext_partition_allowed && bsize != BLOCK_128X128; + int partition_horz4_allowed = partition4_allowed && partition_horz_allowed; + int partition_vert4_allowed = partition4_allowed && partition_vert_allowed; + if (cpi->sf.prune_ext_partition_types_search_level == 2) { + partition_horz4_allowed &= (pc_tree->partitioning == PARTITION_HORZ || + pc_tree->partitioning == PARTITION_HORZ_A || + pc_tree->partitioning == PARTITION_HORZ_B || + pc_tree->partitioning == PARTITION_SPLIT || + pc_tree->partitioning == PARTITION_NONE); + partition_vert4_allowed &= (pc_tree->partitioning == PARTITION_VERT || + pc_tree->partitioning == PARTITION_VERT_A || + pc_tree->partitioning == PARTITION_VERT_B || + pc_tree->partitioning == PARTITION_SPLIT || + pc_tree->partitioning == PARTITION_NONE); + } + if (cpi->sf.ml_prune_4_partition && partition4_allowed && + partition_horz_allowed && partition_vert_allowed) { + ml_prune_4_partition(cpi, x, bsize, pc_tree->partitioning, best_rdc.rdcost, + horz_rd, vert_rd, split_rd, &partition_horz4_allowed, + &partition_vert4_allowed, pb_source_variance, mi_row, + mi_col); + } + +#if CONFIG_DIST_8X8 + if (x->using_dist_8x8) { + if (block_size_high[bsize] <= 16 || block_size_wide[bsize] <= 16) { + partition_horz4_allowed = 0; + partition_vert4_allowed = 0; + } + } +#endif + + // PARTITION_HORZ_4 + if (partition_horz4_allowed && has_rows && + (do_rectangular_split || active_h_edge(cpi, mi_row, mi_step))) { + av1_init_rd_stats(&sum_rdc); + const int quarter_step = mi_size_high[bsize] / 4; + PICK_MODE_CONTEXT *ctx_prev = ctx_none; + + subsize = get_partition_subsize(bsize, PARTITION_HORZ_4); + sum_rdc.rate = partition_cost[PARTITION_HORZ_4]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, 0); + + for (int i = 0; i < 4; ++i) { + const int this_mi_row = mi_row + i * quarter_step; + + if (i > 0 && this_mi_row >= cm->mi_rows) break; + + PICK_MODE_CONTEXT *ctx_this = &pc_tree->horizontal4[i]; + + ctx_this->rd_mode_is_ready = 0; + ctx_this->skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + const int used_frames = i <= 1 + ? (ref_frames_used[0] | ref_frames_used[1]) + : (ref_frames_used[2] | ref_frames_used[3]); + if (used_frames) ctx_this->skip_ref_frame_mask = ~used_frames; + } + if (!rd_try_subblock(cpi, td, tile_data, tp, (i == 3), this_mi_row, + mi_col, subsize, &best_rdc, &sum_rdc, &this_rdc, + PARTITION_HORZ_4, ctx_prev, ctx_this)) + break; + + ctx_prev = ctx_this; + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_HORZ_4; + } + } + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + // PARTITION_VERT_4 + if (partition_vert4_allowed && has_cols && + (do_rectangular_split || active_v_edge(cpi, mi_row, mi_step))) { + av1_init_rd_stats(&sum_rdc); + const int quarter_step = mi_size_wide[bsize] / 4; + PICK_MODE_CONTEXT *ctx_prev = ctx_none; + + subsize = get_partition_subsize(bsize, PARTITION_VERT_4); + sum_rdc.rate = partition_cost[PARTITION_VERT_4]; + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, 0); + + for (int i = 0; i < 4; ++i) { + const int this_mi_col = mi_col + i * quarter_step; + + if (i > 0 && this_mi_col >= cm->mi_cols) break; + + PICK_MODE_CONTEXT *ctx_this = &pc_tree->vertical4[i]; + + ctx_this->rd_mode_is_ready = 0; + ctx_this->skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + const int used_frames = i <= 1 + ? (ref_frames_used[0] | ref_frames_used[2]) + : (ref_frames_used[1] | ref_frames_used[3]); + if (used_frames) ctx_this->skip_ref_frame_mask = ~used_frames; + } + if (!rd_try_subblock(cpi, td, tile_data, tp, (i == 3), mi_row, + this_mi_col, subsize, &best_rdc, &sum_rdc, &this_rdc, + PARTITION_VERT_4, ctx_prev, ctx_this)) + break; + + ctx_prev = ctx_this; + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + sum_rdc.rdcost = RDCOST(x->rdmult, sum_rdc.rate, sum_rdc.dist); + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_VERT_4; + } + } + restore_context(x, &x_ctx, mi_row, mi_col, bsize, num_planes); + } + + if (bsize == cm->seq_params.sb_size && best_rdc.rate == INT_MAX) { + // Did not find a valid partition, go back and search again, with less + // constraint on which partition types to search. + x->must_find_valid_partition = 1; + goto BEGIN_PARTITION_SEARCH; + } + + // TODO(jbb): This code added so that we avoid static analysis + // warning related to the fact that best_rd isn't used after this + // point. This code should be refactored so that the duplicate + // checks occur in some sub function and thus are used... + (void)best_rd; + *rd_cost = best_rdc; + + if (best_rdc.rate < INT_MAX && best_rdc.dist < INT64_MAX && + pc_tree->index != 3) { + if (bsize == cm->seq_params.sb_size) { + x->cb_offset = 0; + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, OUTPUT_ENABLED, bsize, + pc_tree, NULL); + } else { + encode_sb(cpi, td, tile_data, tp, mi_row, mi_col, DRY_RUN_NORMAL, bsize, + pc_tree, NULL); + } + } + + if (bsize == cm->seq_params.sb_size) { + assert(best_rdc.rate < INT_MAX); + assert(best_rdc.dist < INT64_MAX); + } else { + assert(tp_orig == *tp); + } +} + +// Set all the counters as max. +static void init_first_partition_pass_stats_tables( + FIRST_PARTITION_PASS_STATS *stats) { + for (int i = 0; i < FIRST_PARTITION_PASS_STATS_TABLES; ++i) { + memset(stats[i].ref0_counts, 0xff, sizeof(stats[i].ref0_counts)); + memset(stats[i].ref1_counts, 0xff, sizeof(stats[i].ref1_counts)); + stats[i].sample_counts = INT_MAX; + } +} + +// clear pc_tree_stats +static INLINE void clear_pc_tree_stats(PC_TREE *pt) { + if (pt == NULL) return; + pt->pc_tree_stats.valid = 0; + for (int i = 0; i < 4; ++i) { + clear_pc_tree_stats(pt->split[i]); + } +} + +// Minimum number of samples to trigger the +// mode_pruning_based_on_two_pass_partition_search feature. +#define FIRST_PARTITION_PASS_MIN_SAMPLES 16 + +static void encode_rd_sb_row(AV1_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, int mi_row, + TOKENEXTRA **tp) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + const TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + SPEED_FEATURES *const sf = &cpi->sf; + const int leaf_nodes = 256; + + // Initialize the left context for the new SB row + av1_zero_left_context(xd); + + // Reset delta for every tile + if (mi_row == tile_info->mi_row_start) { + if (cm->delta_q_present_flag) xd->current_qindex = cm->base_qindex; + if (cm->delta_lf_present_flag) { + av1_reset_loop_filter_delta(xd, av1_num_planes(cm)); + } + } + + PC_TREE *const pc_root = + td->pc_root[cm->seq_params.mib_size_log2 - MIN_MIB_SIZE_LOG2]; + // Code each SB in the row + for (int mi_col = tile_info->mi_col_start; mi_col < tile_info->mi_col_end; + mi_col += cm->seq_params.mib_size) { + av1_fill_coeff_costs(&td->mb, xd->tile_ctx, num_planes); + av1_fill_mode_rates(cm, x, xd->tile_ctx); + + if (sf->adaptive_pred_interp_filter) { + for (int i = 0; i < leaf_nodes; ++i) { + td->pc_tree[i].vertical[0].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].vertical[1].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].horizontal[0].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].horizontal[1].pred_interp_filter = SWITCHABLE; + } + } + + x->mb_rd_record.num = x->mb_rd_record.index_start = 0; + + av1_zero(x->txb_rd_record_8X8); + av1_zero(x->txb_rd_record_16X16); + av1_zero(x->txb_rd_record_32X32); + av1_zero(x->txb_rd_record_64X64); + av1_zero(x->txb_rd_record_intra); + + av1_zero(x->pred_mv); + pc_root->index = 0; + + const struct segmentation *const seg = &cm->seg; + int seg_skip = 0; + if (seg->enabled) { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + const int segment_id = + map ? get_segment_id(cm, map, cm->seq_params.sb_size, mi_row, mi_col) + : 0; + seg_skip = segfeature_active(seg, segment_id, SEG_LVL_SKIP); + } + xd->cur_frame_force_integer_mv = cm->cur_frame_force_integer_mv; + + x->sb_energy_level = 0; + if (cm->delta_q_present_flag) { + // Delta-q modulation based on variance + av1_setup_src_planes(x, cpi->source, mi_row, mi_col, num_planes); + + int offset_qindex; + if (DELTAQ_MODULATION == 1) { + const int block_wavelet_energy_level = + av1_block_wavelet_energy_level(cpi, x, cm->seq_params.sb_size); + x->sb_energy_level = block_wavelet_energy_level; + offset_qindex = av1_compute_deltaq_from_energy_level( + cpi, block_wavelet_energy_level); + } else { + const int block_var_level = + av1_log_block_var(cpi, x, cm->seq_params.sb_size); + x->sb_energy_level = block_var_level; + offset_qindex = + av1_compute_deltaq_from_energy_level(cpi, block_var_level); + } + const int qmask = ~(cm->delta_q_res - 1); + int current_qindex = clamp(cm->base_qindex + offset_qindex, + cm->delta_q_res, 256 - cm->delta_q_res); + current_qindex = + ((current_qindex - cm->base_qindex + cm->delta_q_res / 2) & qmask) + + cm->base_qindex; + assert(current_qindex > 0); + + xd->delta_qindex = current_qindex - cm->base_qindex; + set_offsets(cpi, tile_info, x, mi_row, mi_col, cm->seq_params.sb_size); + xd->mi[0]->current_qindex = current_qindex; + av1_init_plane_quantizers(cpi, x, xd->mi[0]->segment_id); + if (cpi->oxcf.deltaq_mode == DELTA_Q_LF) { + const int lfmask = ~(cm->delta_lf_res - 1); + const int delta_lf_from_base = + ((offset_qindex / 2 + cm->delta_lf_res / 2) & lfmask); + + // pre-set the delta lf for loop filter. Note that this value is set + // before mi is assigned for each block in current superblock + for (int j = 0; + j < AOMMIN(cm->seq_params.mib_size, cm->mi_rows - mi_row); j++) { + for (int k = 0; + k < AOMMIN(cm->seq_params.mib_size, cm->mi_cols - mi_col); k++) { + cm->mi[(mi_row + j) * cm->mi_stride + (mi_col + k)] + .delta_lf_from_base = + clamp(delta_lf_from_base, -MAX_LOOP_FILTER, MAX_LOOP_FILTER); + const int frame_lf_count = + av1_num_planes(cm) > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2; + for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) { + cm->mi[(mi_row + j) * cm->mi_stride + (mi_col + k)] + .delta_lf[lf_id] = + clamp(delta_lf_from_base, -MAX_LOOP_FILTER, MAX_LOOP_FILTER); + } + } + } + } + } + + int dummy_rate; + int64_t dummy_dist; + RD_STATS dummy_rdc; + const int idx_str = cm->mi_stride * mi_row + mi_col; + MB_MODE_INFO **mi = cm->mi_grid_visible + idx_str; + x->source_variance = UINT_MAX; + if (sf->partition_search_type == FIXED_PARTITION || seg_skip) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, cm->seq_params.sb_size); + const BLOCK_SIZE bsize = + seg_skip ? cm->seq_params.sb_size : sf->always_this_block_size; + set_fixed_partitioning(cpi, tile_info, mi, mi_row, mi_col, bsize); + rd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + cm->seq_params.sb_size, &dummy_rate, &dummy_dist, 1, + pc_root); + } else if (cpi->partition_search_skippable_frame) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, cm->seq_params.sb_size); + const BLOCK_SIZE bsize = + get_rd_var_based_fixed_partition(cpi, x, mi_row, mi_col); + set_fixed_partitioning(cpi, tile_info, mi, mi_row, mi_col, bsize); + rd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + cm->seq_params.sb_size, &dummy_rate, &dummy_dist, 1, + pc_root); + } else { + // If required set upper and lower partition size limits + if (sf->auto_min_max_partition_size) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, cm->seq_params.sb_size); + rd_auto_partition_range(cpi, tile_info, xd, mi_row, mi_col, + &x->min_partition_size, &x->max_partition_size); + } + + reset_partition(pc_root, cm->seq_params.sb_size); + x->use_cb_search_range = 0; + init_first_partition_pass_stats_tables(x->first_partition_pass_stats); + // Do the first pass if we need two pass partition search + if (cpi->sf.two_pass_partition_search && + cpi->sf.use_square_partition_only_threshold > BLOCK_4X4 && + mi_row + mi_size_high[cm->seq_params.sb_size] < cm->mi_rows && + mi_col + mi_size_wide[cm->seq_params.sb_size] < cm->mi_cols && + cm->frame_type != KEY_FRAME) { + x->cb_partition_scan = 1; + // Reset the stats tables. + if (sf->mode_pruning_based_on_two_pass_partition_search) + av1_zero(x->first_partition_pass_stats); + clear_pc_tree_stats(pc_root); + rd_pick_sqr_partition(cpi, td, tile_data, tp, mi_row, mi_col, + cm->seq_params.sb_size, &dummy_rdc, INT64_MAX, + pc_root, NULL); + x->cb_partition_scan = 0; + + x->source_variance = UINT_MAX; + if (sf->adaptive_pred_interp_filter) { + for (int i = 0; i < leaf_nodes; ++i) { + td->pc_tree[i].vertical[0].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].vertical[1].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].horizontal[0].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].horizontal[1].pred_interp_filter = SWITCHABLE; + } + } + + x->mb_rd_record.num = x->mb_rd_record.index_start = 0; + av1_zero(x->txb_rd_record_8X8); + av1_zero(x->txb_rd_record_16X16); + av1_zero(x->txb_rd_record_32X32); + av1_zero(x->txb_rd_record_64X64); + av1_zero(x->txb_rd_record_intra); + av1_zero(x->pred_mv); + pc_root->index = 0; + + for (int idy = 0; idy < mi_size_high[cm->seq_params.sb_size]; ++idy) { + for (int idx = 0; idx < mi_size_wide[cm->seq_params.sb_size]; ++idx) { + const int offset = cm->mi_stride * (mi_row + idy) + (mi_col + idx); + cm->mi_grid_visible[offset] = 0; + } + } + + x->use_cb_search_range = 1; + + if (sf->mode_pruning_based_on_two_pass_partition_search) { + for (int i = 0; i < FIRST_PARTITION_PASS_STATS_TABLES; ++i) { + FIRST_PARTITION_PASS_STATS *const stat = + &x->first_partition_pass_stats[i]; + if (stat->sample_counts < FIRST_PARTITION_PASS_MIN_SAMPLES) { + // If there are not enough samples collected, make all available. + memset(stat->ref0_counts, 0xff, sizeof(stat->ref0_counts)); + memset(stat->ref1_counts, 0xff, sizeof(stat->ref1_counts)); + } else if (sf->selective_ref_frame < 2) { + // ALTREF2_FRAME and BWDREF_FRAME may be skipped during the + // initial partition scan, so we don't eliminate them. + stat->ref0_counts[ALTREF2_FRAME] = 0xff; + stat->ref1_counts[ALTREF2_FRAME] = 0xff; + stat->ref0_counts[BWDREF_FRAME] = 0xff; + stat->ref1_counts[BWDREF_FRAME] = 0xff; + } + } + } + } + + rd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, + cm->seq_params.sb_size, &dummy_rdc, INT64_MAX, pc_root, + NULL); + } +#if CONFIG_COLLECT_INTER_MODE_RD_STATS + // TODO(angiebird): Let inter_mode_rd_model_estimation support multi-tile. + if (cpi->sf.inter_mode_rd_model_estimation && cm->tile_cols == 1 && + cm->tile_rows == 1) { + av1_inter_mode_data_fit(tile_data, x->rdmult); + } +#endif + } +} + +static void init_encode_frame_mb_context(AV1_COMP *cpi) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + MACROBLOCK *const x = &cpi->td.mb; + MACROBLOCKD *const xd = &x->e_mbd; + + // Copy data over into macro block data structures. + av1_setup_src_planes(x, cpi->source, 0, 0, num_planes); + + av1_setup_block_planes(xd, cm->seq_params.subsampling_x, + cm->seq_params.subsampling_y, num_planes); +} + +static MV_REFERENCE_FRAME get_frame_type(const AV1_COMP *cpi) { + if (frame_is_intra_only(&cpi->common)) return INTRA_FRAME; + // We will not update the golden frame with an internal overlay frame + else if ((cpi->rc.is_src_frame_alt_ref && cpi->refresh_golden_frame) || + cpi->rc.is_src_frame_ext_arf) + return ALTREF_FRAME; + else if (cpi->refresh_golden_frame || cpi->refresh_alt2_ref_frame || + cpi->refresh_alt_ref_frame) + return GOLDEN_FRAME; + else + // TODO(zoeliu): To investigate whether a frame_type other than + // INTRA/ALTREF/GOLDEN/LAST needs to be specified seperately. + return LAST_FRAME; +} + +static TX_MODE select_tx_mode(const AV1_COMP *cpi) { + if (cpi->common.coded_lossless) return ONLY_4X4; + if (cpi->sf.tx_size_search_method == USE_LARGESTALL) + return TX_MODE_LARGEST; + else if (cpi->sf.tx_size_search_method == USE_FULL_RD || + cpi->sf.tx_size_search_method == USE_FAST_RD) + return TX_MODE_SELECT; + else + return cpi->common.tx_mode; +} + +void av1_alloc_tile_data(AV1_COMP *cpi) { + AV1_COMMON *const cm = &cpi->common; + const int tile_cols = cm->tile_cols; + const int tile_rows = cm->tile_rows; + int tile_col, tile_row; + + if (cpi->tile_data != NULL) aom_free(cpi->tile_data); + CHECK_MEM_ERROR( + cm, cpi->tile_data, + aom_memalign(32, tile_cols * tile_rows * sizeof(*cpi->tile_data))); + cpi->allocated_tiles = tile_cols * tile_rows; + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) + for (tile_col = 0; tile_col < tile_cols; ++tile_col) { + TileDataEnc *const tile_data = + &cpi->tile_data[tile_row * tile_cols + tile_col]; + int i, j; + for (i = 0; i < BLOCK_SIZES_ALL; ++i) { + for (j = 0; j < MAX_MODES; ++j) { + tile_data->thresh_freq_fact[i][j] = 32; + tile_data->mode_map[i][j] = j; + } + } + } +} + +void av1_init_tile_data(AV1_COMP *cpi) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + const int tile_cols = cm->tile_cols; + const int tile_rows = cm->tile_rows; + int tile_col, tile_row; + TOKENEXTRA *pre_tok = cpi->tile_tok[0][0]; + TOKENLIST *tplist = cpi->tplist[0][0]; + unsigned int tile_tok = 0; + int tplist_count = 0; + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) { + for (tile_col = 0; tile_col < tile_cols; ++tile_col) { + TileDataEnc *const tile_data = + &cpi->tile_data[tile_row * tile_cols + tile_col]; + TileInfo *const tile_info = &tile_data->tile_info; + av1_tile_init(tile_info, cm, tile_row, tile_col); + + cpi->tile_tok[tile_row][tile_col] = pre_tok + tile_tok; + pre_tok = cpi->tile_tok[tile_row][tile_col]; + tile_tok = allocated_tokens( + *tile_info, cm->seq_params.mib_size_log2 + MI_SIZE_LOG2, num_planes); + cpi->tplist[tile_row][tile_col] = tplist + tplist_count; + tplist = cpi->tplist[tile_row][tile_col]; + tplist_count = av1_get_sb_rows_in_tile(cm, tile_data->tile_info); + tile_data->allow_update_cdf = !cm->large_scale_tile; + tile_data->allow_update_cdf = + tile_data->allow_update_cdf && !cm->disable_cdf_update; + } + } +} + +void av1_encode_sb_row(AV1_COMP *cpi, ThreadData *td, int tile_row, + int tile_col, int mi_row) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + const int tile_cols = cm->tile_cols; + TileDataEnc *this_tile = &cpi->tile_data[tile_row * tile_cols + tile_col]; + const TileInfo *const tile_info = &this_tile->tile_info; + TOKENEXTRA *tok = NULL; + int sb_row_in_tile; + int tile_mb_cols = (tile_info->mi_col_end - tile_info->mi_col_start + 2) >> 2; + + int num_mb_rows_in_sb = + ((1 << (cm->seq_params.mib_size_log2 + MI_SIZE_LOG2)) + 8) >> 4; + + sb_row_in_tile = + (mi_row - tile_info->mi_row_start) >> cm->seq_params.mib_size_log2; + + get_start_tok(cpi, tile_row, tile_col, mi_row, &tok, + cm->seq_params.mib_size_log2 + MI_SIZE_LOG2, num_planes); + cpi->tplist[tile_row][tile_col][sb_row_in_tile].start = tok; + + encode_rd_sb_row(cpi, td, this_tile, mi_row, &tok); + + cpi->tplist[tile_row][tile_col][sb_row_in_tile].stop = tok; + cpi->tplist[tile_row][tile_col][sb_row_in_tile].count = + (unsigned int)(cpi->tplist[tile_row][tile_col][sb_row_in_tile].stop - + cpi->tplist[tile_row][tile_col][sb_row_in_tile].start); + + assert( + (unsigned int)(tok - + cpi->tplist[tile_row][tile_col][sb_row_in_tile].start) <= + get_token_alloc(num_mb_rows_in_sb, tile_mb_cols, + cm->seq_params.mib_size_log2 + MI_SIZE_LOG2, num_planes)); + + (void)tile_mb_cols; + (void)num_mb_rows_in_sb; +} + +void av1_encode_tile(AV1_COMP *cpi, ThreadData *td, int tile_row, + int tile_col) { + AV1_COMMON *const cm = &cpi->common; + TileDataEnc *const this_tile = + &cpi->tile_data[tile_row * cm->tile_cols + tile_col]; + const TileInfo *const tile_info = &this_tile->tile_info; + int mi_row; + +#if CONFIG_COLLECT_INTER_MODE_RD_STATS + av1_inter_mode_data_init(this_tile); +#endif + + av1_zero_above_context(cm, &td->mb.e_mbd, tile_info->mi_col_start, + tile_info->mi_col_end, tile_row); + av1_init_above_context(cm, &td->mb.e_mbd, tile_row); + + // Set up pointers to per thread motion search counters. + this_tile->m_search_count = 0; // Count of motion search hits. + this_tile->ex_search_count = 0; // Exhaustive mesh search hits. + td->mb.m_search_count_ptr = &this_tile->m_search_count; + td->mb.ex_search_count_ptr = &this_tile->ex_search_count; + this_tile->tctx = *cm->fc; + td->mb.e_mbd.tile_ctx = &this_tile->tctx; + + cfl_init(&td->mb.e_mbd.cfl, &cm->seq_params); + + av1_crc32c_calculator_init(&td->mb.mb_rd_record.crc_calculator); + + td->intrabc_used_this_tile = 0; + + for (mi_row = tile_info->mi_row_start; mi_row < tile_info->mi_row_end; + mi_row += cm->seq_params.mib_size) { + av1_encode_sb_row(cpi, td, tile_row, tile_col, mi_row); + } +} + +static void encode_tiles(AV1_COMP *cpi) { + AV1_COMMON *const cm = &cpi->common; + const int tile_cols = cm->tile_cols; + const int tile_rows = cm->tile_rows; + int tile_col, tile_row; + + if (cpi->tile_data == NULL || cpi->allocated_tiles < tile_cols * tile_rows) + av1_alloc_tile_data(cpi); + + av1_init_tile_data(cpi); + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) { + for (tile_col = 0; tile_col < tile_cols; ++tile_col) { + av1_encode_tile(cpi, &cpi->td, tile_row, tile_col); + cpi->intrabc_used |= cpi->td.intrabc_used_this_tile; + } + } +} + +#if CONFIG_FP_MB_STATS +static int input_fpmb_stats(FIRSTPASS_MB_STATS *firstpass_mb_stats, + AV1_COMMON *cm, uint8_t **this_frame_mb_stats) { + uint8_t *mb_stats_in = firstpass_mb_stats->mb_stats_start + + cm->current_video_frame * cm->MBs * sizeof(uint8_t); + + if (mb_stats_in > firstpass_mb_stats->mb_stats_end) return EOF; + + *this_frame_mb_stats = mb_stats_in; + + return 1; +} +#endif + +#define GLOBAL_TRANS_TYPES_ENC 3 // highest motion model to search +static int gm_get_params_cost(const WarpedMotionParams *gm, + const WarpedMotionParams *ref_gm, int allow_hp) { + int params_cost = 0; + int trans_bits, trans_prec_diff; + switch (gm->wmtype) { + case AFFINE: + case ROTZOOM: + params_cost += aom_count_signed_primitive_refsubexpfin( + GM_ALPHA_MAX + 1, SUBEXPFIN_K, + (ref_gm->wmmat[2] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS), + (gm->wmmat[2] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS)); + params_cost += aom_count_signed_primitive_refsubexpfin( + GM_ALPHA_MAX + 1, SUBEXPFIN_K, + (ref_gm->wmmat[3] >> GM_ALPHA_PREC_DIFF), + (gm->wmmat[3] >> GM_ALPHA_PREC_DIFF)); + if (gm->wmtype >= AFFINE) { + params_cost += aom_count_signed_primitive_refsubexpfin( + GM_ALPHA_MAX + 1, SUBEXPFIN_K, + (ref_gm->wmmat[4] >> GM_ALPHA_PREC_DIFF), + (gm->wmmat[4] >> GM_ALPHA_PREC_DIFF)); + params_cost += aom_count_signed_primitive_refsubexpfin( + GM_ALPHA_MAX + 1, SUBEXPFIN_K, + (ref_gm->wmmat[5] >> GM_ALPHA_PREC_DIFF) - + (1 << GM_ALPHA_PREC_BITS), + (gm->wmmat[5] >> GM_ALPHA_PREC_DIFF) - (1 << GM_ALPHA_PREC_BITS)); + } + AOM_FALLTHROUGH_INTENDED; + case TRANSLATION: + trans_bits = (gm->wmtype == TRANSLATION) + ? GM_ABS_TRANS_ONLY_BITS - !allow_hp + : GM_ABS_TRANS_BITS; + trans_prec_diff = (gm->wmtype == TRANSLATION) + ? GM_TRANS_ONLY_PREC_DIFF + !allow_hp + : GM_TRANS_PREC_DIFF; + params_cost += aom_count_signed_primitive_refsubexpfin( + (1 << trans_bits) + 1, SUBEXPFIN_K, + (ref_gm->wmmat[0] >> trans_prec_diff), + (gm->wmmat[0] >> trans_prec_diff)); + params_cost += aom_count_signed_primitive_refsubexpfin( + (1 << trans_bits) + 1, SUBEXPFIN_K, + (ref_gm->wmmat[1] >> trans_prec_diff), + (gm->wmmat[1] >> trans_prec_diff)); + AOM_FALLTHROUGH_INTENDED; + case IDENTITY: break; + default: assert(0); + } + return (params_cost << AV1_PROB_COST_SHIFT); +} + +static int do_gm_search_logic(SPEED_FEATURES *const sf, int num_refs_using_gm, + int frame) { + (void)num_refs_using_gm; + (void)frame; + switch (sf->gm_search_type) { + case GM_FULL_SEARCH: return 1; + case GM_REDUCED_REF_SEARCH: + return !(frame == LAST2_FRAME || frame == LAST3_FRAME); + case GM_DISABLE_SEARCH: return 0; + default: assert(0); + } + return 1; +} + +// Estimate if the source frame is screen content, based on the portion of +// blocks that have no more than 4 (experimentally selected) luma colors. +static int is_screen_content(const uint8_t *src, int use_hbd, int bd, + int stride, int width, int height) { + assert(src != NULL); + int counts = 0; + const int blk_w = 16; + const int blk_h = 16; + const int limit = 4; + for (int r = 0; r + blk_h <= height; r += blk_h) { + for (int c = 0; c + blk_w <= width; c += blk_w) { + int count_buf[1 << 12]; // Maximum (1 << 12) color levels. + const int n_colors = + use_hbd ? av1_count_colors_highbd(src + r * stride + c, stride, blk_w, + blk_h, bd, count_buf) + : av1_count_colors(src + r * stride + c, stride, blk_w, blk_h, + count_buf); + if (n_colors > 1 && n_colors <= limit) counts++; + } + } + // The threshold is 10%. + return counts * blk_h * blk_w * 10 > width * height; +} + +static const uint8_t ref_frame_flag_list[REF_FRAMES] = { 0, + AOM_LAST_FLAG, + AOM_LAST2_FLAG, + AOM_LAST3_FLAG, + AOM_GOLD_FLAG, + AOM_BWD_FLAG, + AOM_ALT2_FLAG, + AOM_ALT_FLAG }; + +// Enforce the number of references for each arbitrary frame limited to +// (INTER_REFS_PER_FRAME - 1) +static void enforce_max_ref_frames(AV1_COMP *cpi) { + AV1_COMMON *const cm = &cpi->common; + MV_REFERENCE_FRAME ref_frame; + int total_valid_refs = 0; + for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { + if (cpi->ref_frame_flags & ref_frame_flag_list[ref_frame]) + total_valid_refs++; + } + + // NOTE(zoeliu): When all the possible reference frames are availble, we + // reduce the number of reference frames by 1, following the rules of: + // (1) Retain GOLDEN_FARME/ALTEF_FRAME; + // (2) Check the earliest 2 remaining reference frames, and remove the one + // with the lower quality factor, otherwise if both have been coded at + // the same quality level, remove the earliest reference frame. + + if (total_valid_refs == INTER_REFS_PER_FRAME) { + unsigned int min_ref_offset = UINT_MAX; + unsigned int second_min_ref_offset = UINT_MAX; + MV_REFERENCE_FRAME earliest_ref_frames[2] = { LAST3_FRAME, LAST2_FRAME }; + int earliest_buf_idxes[2] = { 0 }; + + // Locate the earliest two reference frames except GOLDEN/ALTREF. + for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) { + // Retain GOLDEN/ALTERF + if (ref_frame == GOLDEN_FRAME || ref_frame == ALTREF_FRAME) continue; + + const int buf_idx = cm->frame_refs[ref_frame - LAST_FRAME].idx; + if (buf_idx >= 0) { + const unsigned int ref_offset = + cm->buffer_pool->frame_bufs[buf_idx].cur_frame_offset; + + if (min_ref_offset == UINT_MAX) { + min_ref_offset = ref_offset; + earliest_ref_frames[0] = ref_frame; + earliest_buf_idxes[0] = buf_idx; + } else { + if (get_relative_dist(cm, ref_offset, min_ref_offset) < 0) { + second_min_ref_offset = min_ref_offset; + earliest_ref_frames[1] = earliest_ref_frames[0]; + earliest_buf_idxes[1] = earliest_buf_idxes[0]; + + min_ref_offset = ref_offset; + earliest_ref_frames[0] = ref_frame; + earliest_buf_idxes[0] = buf_idx; + } else if (second_min_ref_offset == UINT_MAX || + get_relative_dist(cm, ref_offset, second_min_ref_offset) < + 0) { + second_min_ref_offset = ref_offset; + earliest_ref_frames[1] = ref_frame; + earliest_buf_idxes[1] = buf_idx; + } + } + } + } + // Check the coding quality factors of the two earliest reference frames. + RATE_FACTOR_LEVEL ref_rf_level[2]; + double ref_rf_deltas[2]; + for (int i = 0; i < 2; ++i) { + ref_rf_level[i] = cpi->frame_rf_level[earliest_buf_idxes[i]]; + ref_rf_deltas[i] = rate_factor_deltas[ref_rf_level[i]]; + } + (void)ref_rf_level; + (void)ref_rf_deltas; + +#define USE_RF_LEVEL_TO_ENFORCE 1 +#if USE_RF_LEVEL_TO_ENFORCE + // If both earliest two reference frames are coded using the same rate- + // factor, disable the earliest reference frame; Otherwise disable the + // reference frame that uses a lower rate-factor delta. + const MV_REFERENCE_FRAME ref_frame_to_disable = + (ref_rf_deltas[0] <= ref_rf_deltas[1]) ? earliest_ref_frames[0] + : earliest_ref_frames[1]; +#else + // Always disable the earliest reference frame + const MV_REFERENCE_FRAME ref_frame_to_disable = earliest_ref_frames[0]; +#endif // USE_RF_LEVEL_TO_ENFORCE +#undef USE_RF_LEVEL_TO_ENFORCE + + switch (ref_frame_to_disable) { + case LAST_FRAME: cpi->ref_frame_flags &= ~AOM_LAST_FLAG; break; + case LAST2_FRAME: cpi->ref_frame_flags &= ~AOM_LAST2_FLAG; break; + case LAST3_FRAME: cpi->ref_frame_flags &= ~AOM_LAST3_FLAG; break; + case BWDREF_FRAME: cpi->ref_frame_flags &= ~AOM_BWD_FLAG; break; + case ALTREF2_FRAME: cpi->ref_frame_flags &= ~AOM_ALT2_FLAG; break; + default: break; + } + } +} + +static INLINE int av1_refs_are_one_sided(const AV1_COMMON *cm) { + assert(!frame_is_intra_only(cm)); + + int one_sided_refs = 1; + for (int ref = 0; ref < INTER_REFS_PER_FRAME; ++ref) { + const int buf_idx = cm->frame_refs[ref].idx; + if (buf_idx == INVALID_IDX) continue; + + const int ref_offset = + cm->buffer_pool->frame_bufs[buf_idx].cur_frame_offset; + if (get_relative_dist(cm, ref_offset, (int)cm->frame_offset) > 0) { + one_sided_refs = 0; // bwd reference + break; + } + } + return one_sided_refs; +} + +static INLINE void get_skip_mode_ref_offsets(const AV1_COMMON *cm, + int ref_offset[2]) { + ref_offset[0] = ref_offset[1] = 0; + if (!cm->is_skip_mode_allowed) return; + + const int buf_idx_0 = cm->frame_refs[cm->ref_frame_idx_0].idx; + const int buf_idx_1 = cm->frame_refs[cm->ref_frame_idx_1].idx; + assert(buf_idx_0 != INVALID_IDX && buf_idx_1 != INVALID_IDX); + + ref_offset[0] = cm->buffer_pool->frame_bufs[buf_idx_0].cur_frame_offset; + ref_offset[1] = cm->buffer_pool->frame_bufs[buf_idx_1].cur_frame_offset; +} + +static int check_skip_mode_enabled(AV1_COMP *const cpi) { + AV1_COMMON *const cm = &cpi->common; + + av1_setup_skip_mode_allowed(cm); + if (!cm->is_skip_mode_allowed) return 0; + + // Turn off skip mode if the temporal distances of the reference pair to the + // current frame are different by more than 1 frame. + const int cur_offset = (int)cm->frame_offset; + int ref_offset[2]; + get_skip_mode_ref_offsets(cm, ref_offset); + const int cur_to_ref0 = get_relative_dist(cm, cur_offset, ref_offset[0]); + const int cur_to_ref1 = abs(get_relative_dist(cm, cur_offset, ref_offset[1])); + if (abs(cur_to_ref0 - cur_to_ref1) > 1) return 0; + + // High Latency: Turn off skip mode if all refs are fwd. + if (cpi->all_one_sided_refs && cpi->oxcf.lag_in_frames > 0) return 0; + + static const int flag_list[REF_FRAMES] = { 0, + AOM_LAST_FLAG, + AOM_LAST2_FLAG, + AOM_LAST3_FLAG, + AOM_GOLD_FLAG, + AOM_BWD_FLAG, + AOM_ALT2_FLAG, + AOM_ALT_FLAG }; + const int ref_frame[2] = { cm->ref_frame_idx_0 + LAST_FRAME, + cm->ref_frame_idx_1 + LAST_FRAME }; + if (!(cpi->ref_frame_flags & flag_list[ref_frame[0]]) || + !(cpi->ref_frame_flags & flag_list[ref_frame[1]])) + return 0; + + return 1; +} + +// Function to decide if we can skip the global motion parameter computation +// for a particular ref frame +static INLINE int skip_gm_frame(AV1_COMMON *const cm, int ref_frame) { + if ((ref_frame == LAST3_FRAME || ref_frame == LAST2_FRAME) && + cm->global_motion[GOLDEN_FRAME].wmtype != IDENTITY) { + return get_relative_dist( + cm, cm->cur_frame->ref_frame_offset[ref_frame - LAST_FRAME], + cm->cur_frame->ref_frame_offset[GOLDEN_FRAME - LAST_FRAME]) <= 0; + } + return 0; +} + +static void set_default_interp_skip_flags(AV1_COMP *cpi) { + const int num_planes = av1_num_planes(&cpi->common); + cpi->default_interp_skip_flags = (num_planes == 1) + ? DEFAULT_LUMA_INTERP_SKIP_FLAG + : DEFAULT_INTERP_SKIP_FLAG; +} + +static void encode_frame_internal(AV1_COMP *cpi) { + ThreadData *const td = &cpi->td; + MACROBLOCK *const x = &td->mb; + AV1_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + RD_COUNTS *const rdc = &cpi->td.rd_counts; + int i; + + x->min_partition_size = AOMMIN(x->min_partition_size, cm->seq_params.sb_size); + x->max_partition_size = AOMMIN(x->max_partition_size, cm->seq_params.sb_size); +#if CONFIG_DIST_8X8 + x->using_dist_8x8 = cpi->oxcf.using_dist_8x8; + x->tune_metric = cpi->oxcf.tuning; +#endif + cm->setup_mi(cm); + + xd->mi = cm->mi_grid_visible; + xd->mi[0] = cm->mi; + + av1_zero(*td->counts); + av1_zero(rdc->comp_pred_diff); + + if (frame_is_intra_only(cm)) { + if (cm->seq_params.force_screen_content_tools == 2) { + cm->allow_screen_content_tools = + cpi->oxcf.content == AOM_CONTENT_SCREEN || + is_screen_content(cpi->source->y_buffer, + cpi->source->flags & YV12_FLAG_HIGHBITDEPTH, xd->bd, + cpi->source->y_stride, cpi->source->y_width, + cpi->source->y_height); + } else { + cm->allow_screen_content_tools = + cm->seq_params.force_screen_content_tools; + } + } + + // Allow intrabc when screen content tools are enabled. + cm->allow_intrabc = cm->allow_screen_content_tools; + // Reset the flag. + cpi->intrabc_used = 0; + // Need to disable intrabc when superres is selected + if (av1_superres_scaled(cm)) { + cm->allow_intrabc = 0; + } + + if (cpi->oxcf.pass != 1 && av1_use_hash_me(cm)) { + // add to hash table + const int pic_width = cpi->source->y_crop_width; + const int pic_height = cpi->source->y_crop_height; + uint32_t *block_hash_values[2][2]; + int8_t *is_block_same[2][3]; + int k, j; + + for (k = 0; k < 2; k++) { + for (j = 0; j < 2; j++) { + CHECK_MEM_ERROR(cm, block_hash_values[k][j], + aom_malloc(sizeof(uint32_t) * pic_width * pic_height)); + } + + for (j = 0; j < 3; j++) { + CHECK_MEM_ERROR(cm, is_block_same[k][j], + aom_malloc(sizeof(int8_t) * pic_width * pic_height)); + } + } + + av1_hash_table_create(&cm->cur_frame->hash_table); + av1_generate_block_2x2_hash_value(cpi->source, block_hash_values[0], + is_block_same[0], &cpi->td.mb); + av1_generate_block_hash_value(cpi->source, 4, block_hash_values[0], + block_hash_values[1], is_block_same[0], + is_block_same[1], &cpi->td.mb); + av1_add_to_hash_map_by_row_with_precal_data( + &cm->cur_frame->hash_table, block_hash_values[1], is_block_same[1][2], + pic_width, pic_height, 4); + av1_generate_block_hash_value(cpi->source, 8, block_hash_values[1], + block_hash_values[0], is_block_same[1], + is_block_same[0], &cpi->td.mb); + av1_add_to_hash_map_by_row_with_precal_data( + &cm->cur_frame->hash_table, block_hash_values[0], is_block_same[0][2], + pic_width, pic_height, 8); + av1_generate_block_hash_value(cpi->source, 16, block_hash_values[0], + block_hash_values[1], is_block_same[0], + is_block_same[1], &cpi->td.mb); + av1_add_to_hash_map_by_row_with_precal_data( + &cm->cur_frame->hash_table, block_hash_values[1], is_block_same[1][2], + pic_width, pic_height, 16); + av1_generate_block_hash_value(cpi->source, 32, block_hash_values[1], + block_hash_values[0], is_block_same[1], + is_block_same[0], &cpi->td.mb); + av1_add_to_hash_map_by_row_with_precal_data( + &cm->cur_frame->hash_table, block_hash_values[0], is_block_same[0][2], + pic_width, pic_height, 32); + av1_generate_block_hash_value(cpi->source, 64, block_hash_values[0], + block_hash_values[1], is_block_same[0], + is_block_same[1], &cpi->td.mb); + av1_add_to_hash_map_by_row_with_precal_data( + &cm->cur_frame->hash_table, block_hash_values[1], is_block_same[1][2], + pic_width, pic_height, 64); + + av1_generate_block_hash_value(cpi->source, 128, block_hash_values[1], + block_hash_values[0], is_block_same[1], + is_block_same[0], &cpi->td.mb); + av1_add_to_hash_map_by_row_with_precal_data( + &cm->cur_frame->hash_table, block_hash_values[0], is_block_same[0][2], + pic_width, pic_height, 128); + + for (k = 0; k < 2; k++) { + for (j = 0; j < 2; j++) { + aom_free(block_hash_values[k][j]); + } + + for (j = 0; j < 3; j++) { + aom_free(is_block_same[k][j]); + } + } + } + + for (i = 0; i < MAX_SEGMENTS; ++i) { + const int qindex = cm->seg.enabled + ? av1_get_qindex(&cm->seg, i, cm->base_qindex) + : cm->base_qindex; + xd->lossless[i] = qindex == 0 && cm->y_dc_delta_q == 0 && + cm->u_dc_delta_q == 0 && cm->u_ac_delta_q == 0 && + cm->v_dc_delta_q == 0 && cm->v_ac_delta_q == 0; + if (xd->lossless[i]) cpi->has_lossless_segment = 1; + xd->qindex[i] = qindex; + if (xd->lossless[i]) { + cpi->optimize_seg_arr[i] = 0; + } else { + cpi->optimize_seg_arr[i] = cpi->optimize_speed_feature; + } + } + cm->coded_lossless = is_coded_lossless(cm, xd); + cm->all_lossless = cm->coded_lossless && !av1_superres_scaled(cm); + + cm->tx_mode = select_tx_mode(cpi); + + // Fix delta q resolution for the moment + cm->delta_q_res = DEFAULT_DELTA_Q_RES; + // Set delta_q_present_flag before it is used for the first time + cm->delta_lf_res = DEFAULT_DELTA_LF_RES; + cm->delta_q_present_flag = cpi->oxcf.deltaq_mode != NO_DELTA_Q; + cm->delta_lf_present_flag = cpi->oxcf.deltaq_mode == DELTA_Q_LF; + cm->delta_lf_multi = DEFAULT_DELTA_LF_MULTI; + // update delta_q_present_flag and delta_lf_present_flag based on base_qindex + cm->delta_q_present_flag &= cm->base_qindex > 0; + cm->delta_lf_present_flag &= cm->base_qindex > 0; + + av1_frame_init_quantizer(cpi); + + av1_initialize_rd_consts(cpi); + av1_initialize_me_consts(cpi, x, cm->base_qindex); + init_encode_frame_mb_context(cpi); + set_default_interp_skip_flags(cpi); + if (cm->prev_frame) + cm->last_frame_seg_map = cm->prev_frame->seg_map; + else + cm->last_frame_seg_map = NULL; + cm->current_frame_seg_map = cm->cur_frame->seg_map; + if (cm->allow_intrabc || cm->coded_lossless) { + av1_set_default_ref_deltas(cm->lf.ref_deltas); + av1_set_default_mode_deltas(cm->lf.mode_deltas); + } else if (cm->prev_frame) { + memcpy(cm->lf.ref_deltas, cm->prev_frame->ref_deltas, REF_FRAMES); + memcpy(cm->lf.mode_deltas, cm->prev_frame->mode_deltas, MAX_MODE_LF_DELTAS); + } + memcpy(cm->cur_frame->ref_deltas, cm->lf.ref_deltas, REF_FRAMES); + memcpy(cm->cur_frame->mode_deltas, cm->lf.mode_deltas, MAX_MODE_LF_DELTAS); + + // Special case: set prev_mi to NULL when the previous mode info + // context cannot be used. + cm->prev_mi = cm->allow_ref_frame_mvs ? cm->prev_mip : NULL; + + x->txb_split_count = 0; + + av1_zero(rdc->global_motion_used); + av1_zero(cpi->gmparams_cost); +#if !CONFIG_GLOBAL_MOTION_SEARCH + cpi->global_motion_search_done = 1; +#endif // !CONFIG_GLOBAL_MOTION_SEARCH + if (cpi->common.frame_type == INTER_FRAME && cpi->source && + !cpi->global_motion_search_done) { + YV12_BUFFER_CONFIG *ref_buf[REF_FRAMES]; + int frame; + double params_by_motion[RANSAC_NUM_MOTIONS * (MAX_PARAMDIM - 1)]; + const double *params_this_motion; + int inliers_by_motion[RANSAC_NUM_MOTIONS]; + WarpedMotionParams tmp_wm_params; + static const double kIdentityParams[MAX_PARAMDIM - 1] = { + 0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0 + }; + int num_refs_using_gm = 0; + + for (frame = ALTREF_FRAME; frame >= LAST_FRAME; --frame) { + ref_buf[frame] = get_ref_frame_buffer(cpi, frame); + int pframe; + cm->global_motion[frame] = default_warp_params; + const WarpedMotionParams *ref_params = + cm->prev_frame ? &cm->prev_frame->global_motion[frame] + : &default_warp_params; + // check for duplicate buffer + for (pframe = ALTREF_FRAME; pframe > frame; --pframe) { + if (ref_buf[frame] == ref_buf[pframe]) break; + } + if (pframe > frame) { + memcpy(&cm->global_motion[frame], &cm->global_motion[pframe], + sizeof(WarpedMotionParams)); + } else if (ref_buf[frame] && + ref_buf[frame]->y_crop_width == cpi->source->y_crop_width && + ref_buf[frame]->y_crop_height == cpi->source->y_crop_height && + do_gm_search_logic(&cpi->sf, num_refs_using_gm, frame) && + !(cpi->sf.selective_ref_gm && skip_gm_frame(cm, frame))) { + TransformationType model; + const int64_t ref_frame_error = + av1_frame_error(xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH, xd->bd, + ref_buf[frame]->y_buffer, ref_buf[frame]->y_stride, + cpi->source->y_buffer, cpi->source->y_width, + cpi->source->y_height, cpi->source->y_stride); + + if (ref_frame_error == 0) continue; + + aom_clear_system_state(); + for (model = ROTZOOM; model < GLOBAL_TRANS_TYPES_ENC; ++model) { + int64_t best_warp_error = INT64_MAX; + // Initially set all params to identity. + for (i = 0; i < RANSAC_NUM_MOTIONS; ++i) { + memcpy(params_by_motion + (MAX_PARAMDIM - 1) * i, kIdentityParams, + (MAX_PARAMDIM - 1) * sizeof(*params_by_motion)); + } + + compute_global_motion_feature_based( + model, cpi->source, ref_buf[frame], + cpi->common.seq_params.bit_depth, inliers_by_motion, + params_by_motion, RANSAC_NUM_MOTIONS); + + for (i = 0; i < RANSAC_NUM_MOTIONS; ++i) { + if (inliers_by_motion[i] == 0) continue; + + params_this_motion = params_by_motion + (MAX_PARAMDIM - 1) * i; + convert_model_to_params(params_this_motion, &tmp_wm_params); + + if (tmp_wm_params.wmtype != IDENTITY) { + const int64_t warp_error = refine_integerized_param( + &tmp_wm_params, tmp_wm_params.wmtype, + xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH, xd->bd, + ref_buf[frame]->y_buffer, ref_buf[frame]->y_width, + ref_buf[frame]->y_height, ref_buf[frame]->y_stride, + cpi->source->y_buffer, cpi->source->y_width, + cpi->source->y_height, cpi->source->y_stride, 5, + best_warp_error); + if (warp_error < best_warp_error) { + best_warp_error = warp_error; + // Save the wm_params modified by refine_integerized_param() + // rather than motion index to avoid rerunning refine() below. + memcpy(&(cm->global_motion[frame]), &tmp_wm_params, + sizeof(WarpedMotionParams)); + } + } + } + if (cm->global_motion[frame].wmtype <= AFFINE) + if (!get_shear_params(&cm->global_motion[frame])) + cm->global_motion[frame] = default_warp_params; + + if (cm->global_motion[frame].wmtype == TRANSLATION) { + cm->global_motion[frame].wmmat[0] = + convert_to_trans_prec(cm->allow_high_precision_mv, + cm->global_motion[frame].wmmat[0]) * + GM_TRANS_ONLY_DECODE_FACTOR; + cm->global_motion[frame].wmmat[1] = + convert_to_trans_prec(cm->allow_high_precision_mv, + cm->global_motion[frame].wmmat[1]) * + GM_TRANS_ONLY_DECODE_FACTOR; + } + + // If the best error advantage found doesn't meet the threshold for + // this motion type, revert to IDENTITY. + if (!is_enough_erroradvantage( + (double)best_warp_error / ref_frame_error, + gm_get_params_cost(&cm->global_motion[frame], ref_params, + cm->allow_high_precision_mv), + cpi->sf.gm_erroradv_type)) { + cm->global_motion[frame] = default_warp_params; + } + if (cm->global_motion[frame].wmtype != IDENTITY) break; + } + aom_clear_system_state(); + } + if (cm->global_motion[frame].wmtype != IDENTITY) num_refs_using_gm++; + cpi->gmparams_cost[frame] = + gm_get_params_cost(&cm->global_motion[frame], ref_params, + cm->allow_high_precision_mv) + + cpi->gmtype_cost[cm->global_motion[frame].wmtype] - + cpi->gmtype_cost[IDENTITY]; + } + // clear disabled ref_frames + for (frame = LAST_FRAME; frame <= ALTREF_FRAME; ++frame) { + const int ref_disabled = + !(cpi->ref_frame_flags & ref_frame_flag_list[frame]); + if (ref_disabled && cpi->sf.recode_loop != DISALLOW_RECODE) { + cpi->gmparams_cost[frame] = 0; + cm->global_motion[frame] = default_warp_params; + } + } + cpi->global_motion_search_done = 1; + } + memcpy(cm->cur_frame->global_motion, cm->global_motion, + REF_FRAMES * sizeof(WarpedMotionParams)); + + av1_setup_motion_field(cm); + + cpi->all_one_sided_refs = + frame_is_intra_only(cm) ? 0 : av1_refs_are_one_sided(cm); + + cm->skip_mode_flag = check_skip_mode_enabled(cpi); + + { + struct aom_usec_timer emr_timer; + aom_usec_timer_start(&emr_timer); + +#if CONFIG_FP_MB_STATS + if (cpi->use_fp_mb_stats) { + input_fpmb_stats(&cpi->twopass.firstpass_mb_stats, cm, + &cpi->twopass.this_frame_mb_stats); + } +#endif + + if (cpi->row_mt && (cpi->oxcf.max_threads > 1)) + av1_encode_tiles_mt(cpi); + else if (AOMMIN(cpi->oxcf.max_threads, cm->tile_cols * cm->tile_rows) > 1) + av1_encode_tiles_mt(cpi); + else + encode_tiles(cpi); + + aom_usec_timer_mark(&emr_timer); + cpi->time_encode_sb_row += aom_usec_timer_elapsed(&emr_timer); + } + + // If intrabc is allowed but never selected, reset the allow_intrabc flag. + if (cm->allow_intrabc && !cpi->intrabc_used) cm->allow_intrabc = 0; + if (cm->allow_intrabc) cm->delta_lf_present_flag = 0; +} + +void av1_encode_frame(AV1_COMP *cpi) { + AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + // Indicates whether or not to use a default reduced set for ext-tx + // rather than the potential full set of 16 transforms + cm->reduced_tx_set_used = 0; + + if (cm->show_frame == 0) { + int arf_offset = AOMMIN( + (MAX_GF_INTERVAL - 1), + cpi->twopass.gf_group.arf_src_offset[cpi->twopass.gf_group.index]); + int brf_offset = + cpi->twopass.gf_group.brf_src_offset[cpi->twopass.gf_group.index]; + arf_offset = AOMMIN((MAX_GF_INTERVAL - 1), arf_offset + brf_offset); + cm->frame_offset = cm->current_video_frame + arf_offset; + } else { + cm->frame_offset = cm->current_video_frame; + } + cm->frame_offset %= (1 << (cm->seq_params.order_hint_bits_minus_1 + 1)); + + // Make sure segment_id is no larger than last_active_segid. + if (cm->seg.enabled && cm->seg.update_map) { + const int mi_rows = cm->mi_rows; + const int mi_cols = cm->mi_cols; + const int last_active_segid = cm->seg.last_active_segid; + uint8_t *map = cpi->segmentation_map; + for (int mi_row = 0; mi_row < mi_rows; ++mi_row) { + for (int mi_col = 0; mi_col < mi_cols; ++mi_col) { + map[mi_col] = AOMMIN(map[mi_col], last_active_segid); + } + map += mi_cols; + } + } + + av1_setup_frame_buf_refs(cm); + if (cpi->sf.selective_ref_frame >= 2) enforce_max_ref_frames(cpi); + av1_setup_frame_sign_bias(cm); + +#if CONFIG_MISMATCH_DEBUG + mismatch_reset_frame(num_planes); +#else + (void)num_planes; +#endif + + cpi->allow_comp_inter_inter = !frame_is_intra_only(cm); + + if (cpi->sf.frame_parameter_update) { + int i; + RD_OPT *const rd_opt = &cpi->rd; + RD_COUNTS *const rdc = &cpi->td.rd_counts; + + // This code does a single RD pass over the whole frame assuming + // either compound, single or hybrid prediction as per whatever has + // worked best for that type of frame in the past. + // It also predicts whether another coding mode would have worked + // better than this coding mode. If that is the case, it remembers + // that for subsequent frames. + // It does the same analysis for transform size selection also. + // + // TODO(zoeliu): To investigate whether a frame_type other than + // INTRA/ALTREF/GOLDEN/LAST needs to be specified seperately. + const MV_REFERENCE_FRAME frame_type = get_frame_type(cpi); + int64_t *const mode_thrs = rd_opt->prediction_type_threshes[frame_type]; + const int is_alt_ref = frame_type == ALTREF_FRAME; + + /* prediction (compound, single or hybrid) mode selection */ + // NOTE: "is_alt_ref" is true only for OVERLAY/INTNL_OVERLAY frames + if (is_alt_ref || !cpi->allow_comp_inter_inter) + cm->reference_mode = SINGLE_REFERENCE; + else + cm->reference_mode = REFERENCE_MODE_SELECT; + + cm->interp_filter = SWITCHABLE; + if (cm->large_scale_tile) cm->interp_filter = EIGHTTAP_REGULAR; + + cm->switchable_motion_mode = 1; + + rdc->compound_ref_used_flag = 0; + rdc->skip_mode_used_flag = 0; + + encode_frame_internal(cpi); + + for (i = 0; i < REFERENCE_MODES; ++i) + mode_thrs[i] = (mode_thrs[i] + rdc->comp_pred_diff[i] / cm->MBs) / 2; + + if (cm->reference_mode == REFERENCE_MODE_SELECT) { + // Use a flag that includes 4x4 blocks + if (rdc->compound_ref_used_flag == 0) { + cm->reference_mode = SINGLE_REFERENCE; +#if CONFIG_ENTROPY_STATS + av1_zero(cpi->td.counts->comp_inter); +#endif // CONFIG_ENTROPY_STATS + } + } + // Re-check on the skip mode status as reference mode may have been changed. + if (frame_is_intra_only(cm) || cm->reference_mode == SINGLE_REFERENCE) { + cm->is_skip_mode_allowed = 0; + cm->skip_mode_flag = 0; + } + if (cm->skip_mode_flag && rdc->skip_mode_used_flag == 0) + cm->skip_mode_flag = 0; + + if (!cm->large_scale_tile) { + if (cm->tx_mode == TX_MODE_SELECT && cpi->td.mb.txb_split_count == 0) + cm->tx_mode = TX_MODE_LARGEST; + } + } else { + encode_frame_internal(cpi); + } +} + +static void update_txfm_count(MACROBLOCK *x, MACROBLOCKD *xd, + FRAME_COUNTS *counts, TX_SIZE tx_size, int depth, + int blk_row, int blk_col, + uint8_t allow_update_cdf) { + MB_MODE_INFO *mbmi = xd->mi[0]; + const BLOCK_SIZE bsize = mbmi->sb_type; + const int max_blocks_high = max_block_high(xd, bsize, 0); + const int max_blocks_wide = max_block_wide(xd, bsize, 0); + int ctx = txfm_partition_context(xd->above_txfm_context + blk_col, + xd->left_txfm_context + blk_row, + mbmi->sb_type, tx_size); + const int txb_size_index = av1_get_txb_size_index(bsize, blk_row, blk_col); + const TX_SIZE plane_tx_size = mbmi->inter_tx_size[txb_size_index]; + + if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return; + assert(tx_size > TX_4X4); + + if (depth == MAX_VARTX_DEPTH) { + // Don't add to counts in this case + mbmi->tx_size = tx_size; + txfm_partition_update(xd->above_txfm_context + blk_col, + xd->left_txfm_context + blk_row, tx_size, tx_size); + return; + } + + if (tx_size == plane_tx_size) { +#if CONFIG_ENTROPY_STATS + ++counts->txfm_partition[ctx][0]; +#endif + if (allow_update_cdf) + update_cdf(xd->tile_ctx->txfm_partition_cdf[ctx], 0, 2); + mbmi->tx_size = tx_size; + 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 bsw = tx_size_wide_unit[sub_txs]; + const int bsh = tx_size_high_unit[sub_txs]; + +#if CONFIG_ENTROPY_STATS + ++counts->txfm_partition[ctx][1]; +#endif + if (allow_update_cdf) + update_cdf(xd->tile_ctx->txfm_partition_cdf[ctx], 1, 2); + ++x->txb_split_count; + + if (sub_txs == TX_4X4) { + mbmi->inter_tx_size[txb_size_index] = TX_4X4; + mbmi->tx_size = TX_4X4; + txfm_partition_update(xd->above_txfm_context + blk_col, + xd->left_txfm_context + blk_row, TX_4X4, tx_size); + return; + } + + for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) { + for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) { + int offsetr = row; + int offsetc = col; + + update_txfm_count(x, xd, counts, sub_txs, depth + 1, blk_row + offsetr, + blk_col + offsetc, allow_update_cdf); + } + } + } +} + +static void tx_partition_count_update(const AV1_COMMON *const cm, MACROBLOCK *x, + BLOCK_SIZE plane_bsize, int mi_row, + int mi_col, FRAME_COUNTS *td_counts, + uint8_t allow_update_cdf) { + MACROBLOCKD *xd = &x->e_mbd; + const int mi_width = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; + const int mi_height = block_size_high[plane_bsize] >> tx_size_high_log2[0]; + const TX_SIZE max_tx_size = get_vartx_max_txsize(xd, plane_bsize, 0); + const int bh = tx_size_high_unit[max_tx_size]; + const int bw = tx_size_wide_unit[max_tx_size]; + int idx, idy; + + xd->above_txfm_context = cm->above_txfm_context[xd->tile.tile_row] + mi_col; + xd->left_txfm_context = + xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); + + for (idy = 0; idy < mi_height; idy += bh) + for (idx = 0; idx < mi_width; idx += bw) + update_txfm_count(x, xd, td_counts, max_tx_size, 0, idy, idx, + allow_update_cdf); +} + +static void set_txfm_context(MACROBLOCKD *xd, TX_SIZE tx_size, int blk_row, + int blk_col) { + MB_MODE_INFO *mbmi = xd->mi[0]; + const BLOCK_SIZE bsize = mbmi->sb_type; + const int max_blocks_high = max_block_high(xd, bsize, 0); + const int max_blocks_wide = max_block_wide(xd, bsize, 0); + const int txb_size_index = av1_get_txb_size_index(bsize, blk_row, blk_col); + const TX_SIZE plane_tx_size = mbmi->inter_tx_size[txb_size_index]; + + if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return; + + if (tx_size == plane_tx_size) { + mbmi->tx_size = tx_size; + txfm_partition_update(xd->above_txfm_context + blk_col, + xd->left_txfm_context + blk_row, tx_size, tx_size); + + } else { + if (tx_size == TX_8X8) { + mbmi->inter_tx_size[txb_size_index] = TX_4X4; + mbmi->tx_size = TX_4X4; + txfm_partition_update(xd->above_txfm_context + blk_col, + xd->left_txfm_context + blk_row, TX_4X4, tx_size); + return; + } + const TX_SIZE sub_txs = sub_tx_size_map[tx_size]; + const int bsw = tx_size_wide_unit[sub_txs]; + const int bsh = tx_size_high_unit[sub_txs]; + for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) { + for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) { + const int offsetr = blk_row + row; + const int offsetc = blk_col + col; + if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue; + set_txfm_context(xd, sub_txs, offsetr, offsetc); + } + } + } +} + +static void tx_partition_set_contexts(const AV1_COMMON *const cm, + MACROBLOCKD *xd, BLOCK_SIZE plane_bsize, + int mi_row, int mi_col) { + const int mi_width = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; + const int mi_height = block_size_high[plane_bsize] >> tx_size_high_log2[0]; + const TX_SIZE max_tx_size = get_vartx_max_txsize(xd, plane_bsize, 0); + const int bh = tx_size_high_unit[max_tx_size]; + const int bw = tx_size_wide_unit[max_tx_size]; + int idx, idy; + + xd->above_txfm_context = cm->above_txfm_context[xd->tile.tile_row] + mi_col; + xd->left_txfm_context = + xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK); + + for (idy = 0; idy < mi_height; idy += bh) + for (idx = 0; idx < mi_width; idx += bw) + set_txfm_context(xd, max_tx_size, idy, idx); +} + +static void encode_superblock(const AV1_COMP *const cpi, TileDataEnc *tile_data, + ThreadData *td, TOKENEXTRA **t, RUN_TYPE dry_run, + int mi_row, int mi_col, BLOCK_SIZE bsize, + int *rate) { + const AV1_COMMON *const cm = &cpi->common; + const int num_planes = av1_num_planes(cm); + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO **mi_4x4 = xd->mi; + MB_MODE_INFO *mbmi = mi_4x4[0]; + const int seg_skip = + segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP); + const int mis = cm->mi_stride; + const int mi_width = mi_size_wide[bsize]; + const int mi_height = mi_size_high[bsize]; + const int is_inter = is_inter_block(mbmi); + + if (cpi->sf.mode_pruning_based_on_two_pass_partition_search && + x->cb_partition_scan) { + for (int row = mi_row; row < mi_row + mi_width; + row += FIRST_PARTITION_PASS_SAMPLE_REGION) { + for (int col = mi_col; col < mi_col + mi_height; + col += FIRST_PARTITION_PASS_SAMPLE_REGION) { + const int index = av1_first_partition_pass_stats_index(row, col); + FIRST_PARTITION_PASS_STATS *const stats = + &x->first_partition_pass_stats[index]; + // Increase the counter of data samples. + ++stats->sample_counts; + // Increase the counter for ref_frame[0] and ref_frame[1]. + if (stats->ref0_counts[mbmi->ref_frame[0]] < 255) + ++stats->ref0_counts[mbmi->ref_frame[0]]; + if (mbmi->ref_frame[1] >= 0 && + stats->ref1_counts[mbmi->ref_frame[0]] < 255) + ++stats->ref1_counts[mbmi->ref_frame[1]]; + } + } + } + + if (!is_inter) { + xd->cfl.is_chroma_reference = + is_chroma_reference(mi_row, mi_col, bsize, cm->seq_params.subsampling_x, + cm->seq_params.subsampling_y); + xd->cfl.store_y = store_cfl_required(cm, xd); + mbmi->skip = 1; + for (int plane = 0; plane < num_planes; ++plane) { + av1_encode_intra_block_plane(cpi, x, bsize, plane, + cpi->optimize_seg_arr[mbmi->segment_id], + mi_row, mi_col); + } + + // If there is at least one lossless segment, force the skip for intra + // block to be 0, in order to avoid the segment_id to be changed by in + // write_segment_id(). + if (!cpi->common.seg.segid_preskip && cpi->common.seg.update_map && + cpi->has_lossless_segment) + mbmi->skip = 0; + + xd->cfl.store_y = 0; + if (av1_allow_palette(cm->allow_screen_content_tools, bsize)) { + for (int plane = 0; plane < AOMMIN(2, num_planes); ++plane) { + if (mbmi->palette_mode_info.palette_size[plane] > 0) { + if (!dry_run) { + av1_tokenize_color_map(x, plane, t, bsize, mbmi->tx_size, + PALETTE_MAP, tile_data->allow_update_cdf, + td->counts); + } else if (dry_run == DRY_RUN_COSTCOEFFS) { + rate += + av1_cost_color_map(x, plane, bsize, mbmi->tx_size, PALETTE_MAP); + } + } + } + } + + av1_update_txb_context(cpi, td, dry_run, bsize, rate, mi_row, mi_col, + tile_data->allow_update_cdf); + } else { + int ref; + const int is_compound = has_second_ref(mbmi); + + set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); + for (ref = 0; ref < 1 + is_compound; ++ref) { + YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi, mbmi->ref_frame[ref]); + assert(IMPLIES(!is_intrabc_block(mbmi), cfg)); + av1_setup_pre_planes(xd, ref, cfg, mi_row, mi_col, + &xd->block_refs[ref]->sf, num_planes); + } + + av1_build_inter_predictors_sb(cm, xd, mi_row, mi_col, NULL, bsize); + if (mbmi->motion_mode == OBMC_CAUSAL) + av1_build_obmc_inter_predictors_sb(cm, xd, mi_row, mi_col); + +#if CONFIG_MISMATCH_DEBUG + if (dry_run == OUTPUT_ENABLED) { + for (int plane = 0; plane < num_planes; ++plane) { + const struct macroblockd_plane *pd = &xd->plane[plane]; + int pixel_c, pixel_r; + mi_to_pixel_loc(&pixel_c, &pixel_r, mi_col, mi_row, 0, 0, + pd->subsampling_x, pd->subsampling_y); + if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x, + pd->subsampling_y)) + continue; + mismatch_record_block_pre(pd->dst.buf, pd->dst.stride, cm->frame_offset, + plane, pixel_c, pixel_r, pd->width, + pd->height, + xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH); + } + } +#else + (void)num_planes; +#endif + + av1_encode_sb(cpi, x, bsize, mi_row, mi_col, dry_run); + av1_tokenize_sb_vartx(cpi, td, t, dry_run, mi_row, mi_col, bsize, rate, + tile_data->allow_update_cdf); + } + + if (!dry_run) { + if (av1_allow_intrabc(cm) && is_intrabc_block(mbmi)) + td->intrabc_used_this_tile = 1; + if (cm->tx_mode == TX_MODE_SELECT && !xd->lossless[mbmi->segment_id] && + mbmi->sb_type > BLOCK_4X4 && !(is_inter && (mbmi->skip || seg_skip))) { + if (is_inter) { + tx_partition_count_update(cm, x, bsize, mi_row, mi_col, td->counts, + tile_data->allow_update_cdf); + } else { + if (mbmi->tx_size != max_txsize_rect_lookup[bsize]) + ++x->txb_split_count; + if (block_signals_txsize(bsize)) { + const int tx_size_ctx = get_tx_size_context(xd); + const int32_t tx_size_cat = bsize_to_tx_size_cat(bsize); + const int depth = tx_size_to_depth(mbmi->tx_size, bsize); + const int max_depths = bsize_to_max_depth(bsize); + + if (tile_data->allow_update_cdf) + update_cdf(xd->tile_ctx->tx_size_cdf[tx_size_cat][tx_size_ctx], + depth, max_depths + 1); +#if CONFIG_ENTROPY_STATS + ++td->counts->intra_tx_size[tx_size_cat][tx_size_ctx][depth]; +#endif + } + } + assert(IMPLIES(is_rect_tx(mbmi->tx_size), is_rect_tx_allowed(xd, mbmi))); + } else { + int i, j; + TX_SIZE intra_tx_size; + // The new intra coding scheme requires no change of transform size + if (is_inter) { + if (xd->lossless[mbmi->segment_id]) { + intra_tx_size = TX_4X4; + } else { + intra_tx_size = tx_size_from_tx_mode(bsize, cm->tx_mode); + } + } else { + intra_tx_size = mbmi->tx_size; + } + + for (j = 0; j < mi_height; j++) + for (i = 0; i < mi_width; i++) + if (mi_col + i < cm->mi_cols && mi_row + j < cm->mi_rows) + mi_4x4[mis * j + i]->tx_size = intra_tx_size; + + if (intra_tx_size != max_txsize_rect_lookup[bsize]) ++x->txb_split_count; + } + } + + if (cm->tx_mode == TX_MODE_SELECT && block_signals_txsize(mbmi->sb_type) && + is_inter && !(mbmi->skip || seg_skip) && + !xd->lossless[mbmi->segment_id]) { + if (dry_run) tx_partition_set_contexts(cm, xd, bsize, mi_row, mi_col); + } else { + TX_SIZE tx_size = mbmi->tx_size; + // The new intra coding scheme requires no change of transform size + if (is_inter) { + if (xd->lossless[mbmi->segment_id]) { + tx_size = TX_4X4; + } else { + tx_size = tx_size_from_tx_mode(bsize, cm->tx_mode); + } + } else { + tx_size = (bsize > BLOCK_4X4) ? tx_size : TX_4X4; + } + mbmi->tx_size = tx_size; + set_txfm_ctxs(tx_size, xd->n4_w, xd->n4_h, + (mbmi->skip || seg_skip) && is_inter_block(mbmi), xd); + } + CFL_CTX *const cfl = &xd->cfl; + if (is_inter_block(mbmi) && + !is_chroma_reference(mi_row, mi_col, bsize, cfl->subsampling_x, + cfl->subsampling_y) && + is_cfl_allowed(xd)) { + cfl_store_block(xd, mbmi->sb_type, mbmi->tx_size); + } +} |