libavcodec/avs2.h

   1 /*
   2  * AVS2 related definitions
   3  *
   4  * Copyright (C) 2022 Zhao Zhili, <zhilizhao@tencent.com>
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #ifndef AVCODEC_AVS2_H
  24 #define AVCODEC_AVS2_H
  25
  26 #include "libavutil/rational.h"
  27
  28 #define AVS2_SLICE_MAX_START_CODE    0x000001AF
  29
  30 enum {
  31     AVS2_SEQ_START_CODE         = 0xB0,
  32     AVS2_SEQ_END_CODE           = 0xB1,
  33     AVS2_USER_DATA_START_CODE   = 0xB2,
  34     AVS2_INTRA_PIC_START_CODE   = 0xB3,
  35     // reserved                 = 0xB4,
  36     AVS2_EXTENSION_START_CODE   = 0xB5,
  37     AVS2_INTER_PIC_START_CODE   = 0xB6,
  38 };
  39
  40 #define AVS2_ISPIC(x)  ((x) == AVS2_INTRA_PIC_START_CODE || (x) == AVS2_INTER_PIC_START_CODE)
  41 #define AVS2_ISUNIT(x) ((x) == AVS2_SEQ_START_CODE || AVS2_ISPIC(x))
  42
  43 enum AVS2Profile {
  44     AVS2_PROFILE_MAIN_PIC   = 0x12,
  45     AVS2_PROFILE_MAIN       = 0x20,
  46     AVS2_PROFILE_MAIN10     = 0x22,
  47 };
  48
  49 extern const AVRational ff_avs2_frame_rate_tab[16];
  50
  51 #endif