1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_AV1_COMMON_TILE_COMMON_H_ 13 #define AOM_AV1_COMMON_TILE_COMMON_H_ 14 15 #ifdef __cplusplus 16 extern "C" { 17 #endif 18 19 #include "config/aom_config.h" 20 21 struct AV1Common; 22 23 #define DEFAULT_MAX_NUM_TG 1 24 25 typedef struct TileInfo { 26 int mi_row_start, mi_row_end; 27 int mi_col_start, mi_col_end; 28 int tile_row; 29 int tile_col; 30 } TileInfo; 31 32 // initializes 'tile->mi_(row|col)_(start|end)' for (row, col) based on 33 // 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)' 34 void av1_tile_init(TileInfo *tile, const struct AV1Common *cm, int row, 35 int col); 36 37 void av1_tile_set_row(TileInfo *tile, const struct AV1Common *cm, int row); 38 void av1_tile_set_col(TileInfo *tile, const struct AV1Common *cm, int col); 39 40 int av1_get_sb_rows_in_tile(struct AV1Common *cm, TileInfo tile); 41 int av1_get_sb_cols_in_tile(struct AV1Common *cm, TileInfo tile); 42 43 typedef struct { 44 int left, top, right, bottom; 45 } AV1PixelRect; 46 47 // Return the pixel extents of the given tile 48 AV1PixelRect av1_get_tile_rect(const TileInfo *tile_info, 49 const struct AV1Common *cm, int is_uv); 50 51 // Define tile maximum width and area 52 // There is no maximum height since height is limited by area and width limits 53 // The minimum tile width or height is fixed at one superblock 54 #define MAX_TILE_WIDTH (4096) // Max Tile width in pixels 55 #define MAX_TILE_AREA (4096 * 2304) // Maximum tile area in pixels 56 57 void av1_get_uniform_tile_size(const struct AV1Common *cm, int *w, int *h); 58 void av1_get_tile_limits(struct AV1Common *const cm); 59 void av1_calculate_tile_cols(struct AV1Common *const cm); 60 void av1_calculate_tile_rows(struct AV1Common *const cm); 61 62 // Checks if the minimum tile_width requirement is satisfied 63 int is_min_tile_width_satisfied(const struct AV1Common *cm); 64 65 #ifdef __cplusplus 66 } // extern "C" 67 #endif 68 69 #endif // AOM_AV1_COMMON_TILE_COMMON_H_ 70
