74 lines
2.4 KiB
C
Executable file
74 lines
2.4 KiB
C
Executable file
/*
|
|
* 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_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;
|
|
}
|
|
|
|
#endif /* AVFORMAT_MPEG_H */
|