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ffmpeg / libavformat / mpeg.h @ bd51c013

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/*
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 * MPEG1/2 muxer and demuxer common defines
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 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#ifndef AVFORMAT_MPEG_H
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#define AVFORMAT_MPEG_H
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#include <stdint.h>
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#include "libavutil/intreadwrite.h"
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#define PACK_START_CODE             ((unsigned int)0x000001ba)
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#define SYSTEM_HEADER_START_CODE    ((unsigned int)0x000001bb)
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#define SEQUENCE_END_CODE           ((unsigned int)0x000001b7)
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#define PACKET_START_CODE_MASK      ((unsigned int)0xffffff00)
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#define PACKET_START_CODE_PREFIX    ((unsigned int)0x00000100)
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#define ISO_11172_END_CODE          ((unsigned int)0x000001b9)
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/* mpeg2 */
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#define PROGRAM_STREAM_MAP 0x1bc
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#define PRIVATE_STREAM_1   0x1bd
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#define PADDING_STREAM     0x1be
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#define PRIVATE_STREAM_2   0x1bf
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#define AUDIO_ID 0xc0
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#define VIDEO_ID 0xe0
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#define AC3_ID   0x80
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#define DTS_ID   0x8a
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#define LPCM_ID  0xa0
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#define SUB_ID   0x20
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#define STREAM_TYPE_VIDEO_MPEG1     0x01
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#define STREAM_TYPE_VIDEO_MPEG2     0x02
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#define STREAM_TYPE_AUDIO_MPEG1     0x03
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#define STREAM_TYPE_AUDIO_MPEG2     0x04
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#define STREAM_TYPE_PRIVATE_SECTION 0x05
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#define STREAM_TYPE_PRIVATE_DATA    0x06
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#define STREAM_TYPE_AUDIO_AAC       0x0f
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#define STREAM_TYPE_VIDEO_MPEG4     0x10
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#define STREAM_TYPE_VIDEO_H264      0x1b
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#define STREAM_TYPE_AUDIO_AC3       0x81
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#define STREAM_TYPE_AUDIO_DTS       0x8a
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static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 };
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/**
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 * Parse MPEG-PES five-byte timestamp
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 */
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static inline int64_t ff_parse_pes_pts(uint8_t *buf) {
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    return (int64_t)(*buf & 0x0e) << 29 |
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            (AV_RB16(buf+1) >> 1) << 15 |
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             AV_RB16(buf+3) >> 1;
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}
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#endif /* AVFORMAT_MPEG_H */