repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * MPEG1/2 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_CAVS 0x42 | |
| 59 | ||
| 60 | #define STREAM_TYPE_AUDIO_AC3 0x81 | |
| 61 | ||
| 62 | static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 }; | |
| 63 | ||
| 64 | /** | |
| 65 | * Parse MPEG-PES five-byte timestamp | |
| 66 | */ | |
| 67 | static inline int64_t ff_parse_pes_pts(const uint8_t *buf) { | |
| 68 | return (int64_t)(*buf & 0x0e) << 29 | | |
| 69 | (AV_RB16(buf+1) >> 1) << 15 | | |
| 70 | AV_RB16(buf+3) >> 1; | |
| 71 | } | |
| 72 | ||
| 73 | #endif /* AVFORMAT_MPEG_H */ |