1/* 2 * MPEG1/2 muxer and demuxer common defines 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard 4 * 5 * This file is part of Libav. 6 * 7 * Libav 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 * Libav 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 Libav; 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 AC3_ID 0x80 44#define DTS_ID 0x8a 45#define LPCM_ID 0xa0 46#define SUB_ID 0x20 47 48#define STREAM_TYPE_VIDEO_MPEG1 0x01 49#define STREAM_TYPE_VIDEO_MPEG2 0x02 50#define STREAM_TYPE_AUDIO_MPEG1 0x03 51#define STREAM_TYPE_AUDIO_MPEG2 0x04 52#define STREAM_TYPE_PRIVATE_SECTION 0x05 53#define STREAM_TYPE_PRIVATE_DATA 0x06 54#define STREAM_TYPE_AUDIO_AAC 0x0f 55#define STREAM_TYPE_VIDEO_MPEG4 0x10 56#define STREAM_TYPE_VIDEO_H264 0x1b 57 58#define STREAM_TYPE_AUDIO_AC3 0x81 59#define STREAM_TYPE_AUDIO_DTS 0x8a 60 61static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 }; 62 63/** 64 * Parse MPEG-PES five-byte timestamp 65 */ 66static inline int64_t ff_parse_pes_pts(const uint8_t *buf) { 67 return (int64_t)(*buf & 0x0e) << 29 | 68 (AV_RB16(buf+1) >> 1) << 15 | 69 AV_RB16(buf+3) >> 1; 70} 71 72#endif /* AVFORMAT_MPEG_H */ 73