xref: /third_party/ffmpeg/libavcodec/avs2.h (revision cabdff1a)
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
30enum {
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
43enum AVS2Profile {
44    AVS2_PROFILE_MAIN_PIC   = 0x12,
45    AVS2_PROFILE_MAIN       = 0x20,
46    AVS2_PROFILE_MAIN10     = 0x22,
47};
48
49extern const AVRational ff_avs2_frame_rate_tab[16];
50
51#endif
52