/*

 * MPEG-1/2 muxer and demuxer common defines

 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard

 *

 * This file is part of FFmpeg.

 *

 * FFmpeg is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * FFmpeg is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#ifndef AVFORMAT_MPEG_H

#define AVFORMAT_MPEG_H

#include <stdint.h>

#include "libavutil/intreadwrite.h"

#define PACK_START_CODE             ((unsigned int)0x000001ba)

#define SYSTEM_HEADER_START_CODE    ((unsigned int)0x000001bb)

#define SEQUENCE_END_CODE           ((unsigned int)0x000001b7)

#define PACKET_START_CODE_MASK      ((unsigned int)0xffffff00)

#define PACKET_START_CODE_PREFIX    ((unsigned int)0x00000100)

#define ISO_11172_END_CODE          ((unsigned int)0x000001b9)

/* mpeg2 */

#define PROGRAM_STREAM_MAP 0x1bc

#define PRIVATE_STREAM_1   0x1bd

#define PADDING_STREAM     0x1be

#define PRIVATE_STREAM_2   0x1bf

#define AUDIO_ID 0xc0

#define VIDEO_ID 0xe0

#define H264_ID  0xe2

#define AC3_ID   0x80

#define DTS_ID   0x88

#define LPCM_ID  0xa0

#define SUB_ID   0x20

#define STREAM_TYPE_VIDEO_MPEG1     0x01

#define STREAM_TYPE_VIDEO_MPEG2     0x02

#define STREAM_TYPE_AUDIO_MPEG1     0x03

#define STREAM_TYPE_AUDIO_MPEG2     0x04

#define STREAM_TYPE_PRIVATE_SECTION 0x05

#define STREAM_TYPE_PRIVATE_DATA    0x06

#define STREAM_TYPE_AUDIO_AAC       0x0f

#define STREAM_TYPE_VIDEO_MPEG4     0x10

#define STREAM_TYPE_VIDEO_H264      0x1b

#define STREAM_TYPE_VIDEO_HEVC      0x24

#define STREAM_TYPE_VIDEO_VVC       0x33

#define STREAM_TYPE_VIDEO_CAVS      0x42

#define STREAM_TYPE_AUDIO_AC3       0x81

static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 };

/**

 * Parse MPEG-PES five-byte timestamp

 */

static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {

    return (int64_t)(*buf & 0x0e) << 29 |

            (AV_RB16(buf+1) >> 1) << 15 |

             AV_RB16(buf+3) >> 1;

}

mpeg.c:ff_parse_pes_pts

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Source

69

4.21M

static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {

70

4.21M

    return (int64_t)(*buf & 0x0e) << 29 |

71

4.21M

            (AV_RB16(buf+1) >> 1) << 15 |

72

4.21M

             AV_RB16(buf+3) >> 1;

73

4.21M

}

mpegts.c:ff_parse_pes_pts

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Source

69

2.13M

static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {

70

2.13M

    return (int64_t)(*buf & 0x0e) << 29 |

71

2.13M

            (AV_RB16(buf+1) >> 1) << 15 |

72

2.13M

             AV_RB16(buf+3) >> 1;

73

2.13M

}

pva.c:ff_parse_pes_pts

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Source

69

2.20k

static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {

70

2.20k

    return (int64_t)(*buf & 0x0e) << 29 |

71

2.20k

            (AV_RB16(buf+1) >> 1) << 15 |

72

2.20k

             AV_RB16(buf+3) >> 1;

73

2.20k

}

ty.c:ff_parse_pes_pts

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69

1.73k

static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {

70

1.73k

    return (int64_t)(*buf & 0x0e) << 29 |

71

1.73k

            (AV_RB16(buf+1) >> 1) << 15 |

72

1.73k

             AV_RB16(buf+3) >> 1;

73

1.73k

}

#endif /* AVFORMAT_MPEG_H */