/*

  * 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_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 */