99 строки
3.7 KiB
C
99 строки
3.7 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include "av1/common/tile_common.h"
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#include "av1/common/onyxc_int.h"
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#include "aom_dsp/aom_dsp_common.h"
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void av1_tile_set_row(TileInfo *tile, const AV1_COMMON *cm, int row) {
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tile->mi_row_start = row * cm->tile_height;
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tile->mi_row_end = AOMMIN(tile->mi_row_start + cm->tile_height, cm->mi_rows);
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}
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void av1_tile_set_col(TileInfo *tile, const AV1_COMMON *cm, int col) {
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tile->mi_col_start = col * cm->tile_width;
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tile->mi_col_end = AOMMIN(tile->mi_col_start + cm->tile_width, cm->mi_cols);
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}
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void av1_tile_init(TileInfo *tile, const AV1_COMMON *cm, int row, int col) {
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av1_tile_set_row(tile, cm, row);
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av1_tile_set_col(tile, cm, col);
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}
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#if !CONFIG_EXT_TILE
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#if CONFIG_EXT_PARTITION
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#define MIN_TILE_WIDTH_MAX_SB 2
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#define MAX_TILE_WIDTH_MAX_SB 32
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#else
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#define MIN_TILE_WIDTH_MAX_SB 4
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#define MAX_TILE_WIDTH_MAX_SB 64
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#endif // CONFIG_EXT_PARTITION
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static int get_min_log2_tile_cols(const int max_sb_cols) {
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int min_log2 = 0;
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while ((MAX_TILE_WIDTH_MAX_SB << min_log2) < max_sb_cols) ++min_log2;
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return min_log2;
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}
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static int get_max_log2_tile_cols(const int max_sb_cols) {
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int max_log2 = 1;
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while ((max_sb_cols >> max_log2) >= MIN_TILE_WIDTH_MAX_SB) ++max_log2;
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return max_log2 - 1;
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}
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void av1_get_tile_n_bits(const int mi_cols, int *min_log2_tile_cols,
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int *max_log2_tile_cols) {
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const int max_sb_cols =
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ALIGN_POWER_OF_TWO(mi_cols, MAX_MIB_SIZE_LOG2) >> MAX_MIB_SIZE_LOG2;
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*min_log2_tile_cols = get_min_log2_tile_cols(max_sb_cols);
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*max_log2_tile_cols = get_max_log2_tile_cols(max_sb_cols);
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assert(*min_log2_tile_cols <= *max_log2_tile_cols);
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}
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#endif // !CONFIG_EXT_TILE
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void av1_update_boundary_info(const struct AV1Common *cm,
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const TileInfo *const tile_info, int mi_row,
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int mi_col) {
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int row, col;
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for (row = mi_row; row < (mi_row + cm->mib_size); row++)
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for (col = mi_col; col < (mi_col + cm->mib_size); col++) {
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MODE_INFO *const mi = cm->mi + row * cm->mi_stride + col;
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mi->mbmi.boundary_info = 0;
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if (cm->tile_cols * cm->tile_rows > 1) {
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if (row == tile_info->mi_row_start)
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mi->mbmi.boundary_info |= TILE_ABOVE_BOUNDARY;
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if (col == tile_info->mi_col_start)
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mi->mbmi.boundary_info |= TILE_LEFT_BOUNDARY;
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if ((row + 1) >= tile_info->mi_row_end)
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mi->mbmi.boundary_info |= TILE_BOTTOM_BOUNDARY;
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if ((col + 1) >= tile_info->mi_col_end)
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mi->mbmi.boundary_info |= TILE_RIGHT_BOUNDARY;
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}
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// Frame boundary is treated as tile boundary
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if (row == 0)
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mi->mbmi.boundary_info |= FRAME_ABOVE_BOUNDARY | TILE_ABOVE_BOUNDARY;
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if (col == 0)
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mi->mbmi.boundary_info |= FRAME_LEFT_BOUNDARY | TILE_LEFT_BOUNDARY;
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if ((row + 1) >= cm->mi_rows)
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mi->mbmi.boundary_info |= FRAME_BOTTOM_BOUNDARY | TILE_BOTTOM_BOUNDARY;
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if ((col + 1) >= cm->mi_cols)
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mi->mbmi.boundary_info |= FRAME_RIGHT_BOUNDARY | TILE_RIGHT_BOUNDARY;
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}
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}
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#if CONFIG_LOOPFILTERING_ACROSS_TILES
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int av1_disable_loopfilter_on_tile_boundary(const struct AV1Common *cm) {
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return (!cm->loop_filter_across_tiles_enabled &&
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(cm->tile_cols * cm->tile_rows > 1));
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}
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#endif // CONFIG_LOOPFILTERING_ACROSS_TILES
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