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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6148 | serge | 1 | /* |
| 2 | * MPEG1/2 muxer and demuxer common defines |
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| 3 | * Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #ifndef AVFORMAT_MPEG_H |
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| 23 | #define AVFORMAT_MPEG_H |
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| 24 | |||
| 25 | #include |
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| 26 | #include "libavutil/intreadwrite.h" |
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| 27 | |||
| 28 | #define PACK_START_CODE ((unsigned int)0x000001ba) |
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| 29 | #define SYSTEM_HEADER_START_CODE ((unsigned int)0x000001bb) |
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| 30 | #define SEQUENCE_END_CODE ((unsigned int)0x000001b7) |
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| 31 | #define PACKET_START_CODE_MASK ((unsigned int)0xffffff00) |
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| 32 | #define PACKET_START_CODE_PREFIX ((unsigned int)0x00000100) |
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| 33 | #define ISO_11172_END_CODE ((unsigned int)0x000001b9) |
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| 34 | |||
| 35 | /* mpeg2 */ |
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| 36 | #define PROGRAM_STREAM_MAP 0x1bc |
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| 37 | #define PRIVATE_STREAM_1 0x1bd |
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| 38 | #define PADDING_STREAM 0x1be |
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| 39 | #define PRIVATE_STREAM_2 0x1bf |
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| 40 | |||
| 41 | #define AUDIO_ID 0xc0 |
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| 42 | #define VIDEO_ID 0xe0 |
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| 43 | #define AC3_ID 0x80 |
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| 44 | #define DTS_ID 0x88 |
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| 45 | #define LPCM_ID 0xa0 |
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| 46 | #define SUB_ID 0x20 |
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| 47 | |||
| 48 | #define STREAM_TYPE_VIDEO_MPEG1 0x01 |
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| 49 | #define STREAM_TYPE_VIDEO_MPEG2 0x02 |
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| 50 | #define STREAM_TYPE_AUDIO_MPEG1 0x03 |
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| 51 | #define STREAM_TYPE_AUDIO_MPEG2 0x04 |
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| 52 | #define STREAM_TYPE_PRIVATE_SECTION 0x05 |
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| 53 | #define STREAM_TYPE_PRIVATE_DATA 0x06 |
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| 54 | #define STREAM_TYPE_AUDIO_AAC 0x0f |
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| 55 | #define STREAM_TYPE_VIDEO_MPEG4 0x10 |
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| 56 | #define STREAM_TYPE_VIDEO_H264 0x1b |
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| 57 | #define STREAM_TYPE_VIDEO_CAVS 0x42 |
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| 58 | |||
| 59 | #define STREAM_TYPE_AUDIO_AC3 0x81 |
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| 60 | #define STREAM_TYPE_AUDIO_DTS 0x8a |
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| 61 | |||
| 62 | static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 }; |
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| 63 | |||
| 64 | /** |
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| 65 | * Parse MPEG-PES five-byte timestamp |
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| 66 | */ |
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| 67 | static inline int64_t ff_parse_pes_pts(const uint8_t *buf) { |
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| 68 | return (int64_t)(*buf & 0x0e) << 29 | |
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| 69 | (AV_RB16(buf+1) >> 1) << 15 | |
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| 70 | AV_RB16(buf+3) >> 1; |
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| 71 | } |
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| 72 | |||
| 73 | #endif /* AVFORMAT_MPEG_H */ |