FFmpeg
mpeg.h
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1 /*
2  * MPEG-1/2 muxer and demuxer common defines
3  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFORMAT_MPEG_H
23 #define AVFORMAT_MPEG_H
24 
25 #include <stdint.h>
26 #include "libavutil/intreadwrite.h"
27 
28 #define PACK_START_CODE ((unsigned int)0x000001ba)
29 #define SYSTEM_HEADER_START_CODE ((unsigned int)0x000001bb)
30 #define SEQUENCE_END_CODE ((unsigned int)0x000001b7)
31 #define PACKET_START_CODE_MASK ((unsigned int)0xffffff00)
32 #define PACKET_START_CODE_PREFIX ((unsigned int)0x00000100)
33 #define ISO_11172_END_CODE ((unsigned int)0x000001b9)
34 
35 /* mpeg2 */
36 #define PROGRAM_STREAM_MAP 0x1bc
37 #define PRIVATE_STREAM_1 0x1bd
38 #define PADDING_STREAM 0x1be
39 #define PRIVATE_STREAM_2 0x1bf
40 
41 #define AUDIO_ID 0xc0
42 #define VIDEO_ID 0xe0
43 #define H264_ID 0xe2
44 #define AC3_ID 0x80
45 #define DTS_ID 0x88
46 #define LPCM_ID 0xa0
47 #define SUB_ID 0x20
48 
49 #define STREAM_TYPE_VIDEO_MPEG1 0x01
50 #define STREAM_TYPE_VIDEO_MPEG2 0x02
51 #define STREAM_TYPE_AUDIO_MPEG1 0x03
52 #define STREAM_TYPE_AUDIO_MPEG2 0x04
53 #define STREAM_TYPE_PRIVATE_SECTION 0x05
54 #define STREAM_TYPE_PRIVATE_DATA 0x06
55 #define STREAM_TYPE_AUDIO_AAC 0x0f
56 #define STREAM_TYPE_VIDEO_MPEG4 0x10
57 #define STREAM_TYPE_VIDEO_H264 0x1b
58 #define STREAM_TYPE_VIDEO_HEVC 0x24
59 #define STREAM_TYPE_VIDEO_CAVS 0x42
60 
61 #define STREAM_TYPE_AUDIO_AC3 0x81
62 
63 static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 };
64 
65 /**
66  * Parse MPEG-PES five-byte timestamp
67  */
68 static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {
69  return (int64_t)(*buf & 0x0e) << 29 |
70  (AV_RB16(buf+1) >> 1) << 15 |
71  AV_RB16(buf+3) >> 1;
72 }
73 
74 #endif /* AVFORMAT_MPEG_H */
static const int lpcm_freq_tab[4]
Definition: mpeg.h:63
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:87
uint8_t
static int64_t ff_parse_pes_pts(const uint8_t *buf)
Parse MPEG-PES five-byte timestamp.
Definition: mpeg.h:68
void * buf
Definition: avisynth_c.h:766