libavcodec/av1_levels.h

   1 /*
   2  * Copyright (c) 2023 Intel Corporation
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef AVCODEC_AV1_LEVELS_H
  22 #define AVCODEC_AV1_LEVELS_H
  23
  24 #include <stdint.h>
  25
  26 typedef struct AV1LevelDescriptor {
  27     char     name[4];
  28     uint8_t  level_idx;
  29
  30     uint32_t max_pic_size;
  31     uint32_t max_h_size;
  32     uint32_t max_v_size;
  33     uint64_t max_display_rate;
  34     uint64_t max_decode_rate;
  35
  36     uint32_t max_header_rate;
  37     float    main_mbps;
  38     float    high_mbps;
  39     uint32_t main_cr;
  40     uint32_t high_cr;
  41     uint32_t max_tiles;
  42     uint32_t max_tile_cols;
  43 } AV1LevelDescriptor;
  44
  45 /**
  46  * Guess the level of a stream from some parameters.
  47  *
  48  * Unknown parameters may be zero, in which case they will be ignored.
  49  */
  50 const AV1LevelDescriptor *ff_av1_guess_level(int64_t bitrate,
  51                                              int tier,
  52                                              int width,
  53                                              int height,
  54                                              int tile_rows,
  55                                              int tile_cols,
  56                                              float fps);
  57
  58 #endif /* AVCODEC_AV1_LEVELS_H */