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72 lines
2.5 KiB
C
72 lines
2.5 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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#ifndef AOM_AV1_COMMON_TILE_COMMON_H_
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#define AOM_AV1_COMMON_TILE_COMMON_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "config/aom_config.h"
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struct AV1Common;
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#define DEFAULT_MAX_NUM_TG 1
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typedef struct TileInfo {
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int mi_row_start, mi_row_end;
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int mi_col_start, mi_col_end;
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int tg_horz_boundary;
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int tile_row;
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int tile_col;
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} TileInfo;
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// initializes 'tile->mi_(row|col)_(start|end)' for (row, col) based on
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// 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)'
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void av1_tile_init(TileInfo *tile, const struct AV1Common *cm, int row,
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int col);
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void av1_tile_set_row(TileInfo *tile, const struct AV1Common *cm, int row);
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void av1_tile_set_col(TileInfo *tile, const struct AV1Common *cm, int col);
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void av1_get_tile_n_bits(int mi_cols, int *min_log2_tile_cols,
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int *max_log2_tile_cols);
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// Calculate the correct tile size (width or height) for (1 << log2_tile_num)
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// tiles horizontally or vertically in the frame.
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int get_tile_size(int mi_frame_size, int log2_tile_num, int *ntiles);
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int av1_get_sb_rows_in_tile(struct AV1Common *cm, TileInfo tile);
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int av1_get_sb_cols_in_tile(struct AV1Common *cm, TileInfo tile);
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typedef struct {
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int left, top, right, bottom;
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} AV1PixelRect;
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// Return the pixel extents of the given tile
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AV1PixelRect av1_get_tile_rect(const TileInfo *tile_info,
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const struct AV1Common *cm, int is_uv);
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// Define tile maximum width and area
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// There is no maximum height since height is limited by area and width limits
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// The minimum tile width or height is fixed at one superblock
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#define MAX_TILE_WIDTH (4096) // Max Tile width in pixels
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#define MAX_TILE_AREA (4096 * 2304) // Maximum tile area in pixels
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void av1_get_tile_limits(struct AV1Common *const cm);
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void av1_calculate_tile_cols(struct AV1Common *const cm);
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void av1_calculate_tile_rows(struct AV1Common *const cm);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AOM_AV1_COMMON_TILE_COMMON_H_
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