LCOV - code coverage report
Current view: top level - libavformat - mpeg.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 4 4 100.0 %
Date: 2017-12-15 11:05:35 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * MPEG-1/2 muxer and demuxer common defines
       3             :  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg 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             :  * FFmpeg 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 FFmpeg; 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 H264_ID  0xe2
      44             : #define AC3_ID   0x80
      45             : #define DTS_ID   0x88
      46             : #define LPCM_ID  0xa0
      47             : #define SUB_ID   0x20
      48             : 
      49             : #define STREAM_TYPE_VIDEO_MPEG1     0x01
      50             : #define STREAM_TYPE_VIDEO_MPEG2     0x02
      51             : #define STREAM_TYPE_AUDIO_MPEG1     0x03
      52             : #define STREAM_TYPE_AUDIO_MPEG2     0x04
      53             : #define STREAM_TYPE_PRIVATE_SECTION 0x05
      54             : #define STREAM_TYPE_PRIVATE_DATA    0x06
      55             : #define STREAM_TYPE_AUDIO_AAC       0x0f
      56             : #define STREAM_TYPE_VIDEO_MPEG4     0x10
      57             : #define STREAM_TYPE_VIDEO_H264      0x1b
      58             : #define STREAM_TYPE_VIDEO_CAVS      0x42
      59             : 
      60             : #define STREAM_TYPE_AUDIO_AC3       0x81
      61             : 
      62             : static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 };
      63             : 
      64             : /**
      65             :  * Parse MPEG-PES five-byte timestamp
      66             :  */
      67       10666 : static inline int64_t ff_parse_pes_pts(const uint8_t *buf) {
      68       21332 :     return (int64_t)(*buf & 0x0e) << 29 |
      69       21332 :             (AV_RB16(buf+1) >> 1) << 15 |
      70       10666 :              AV_RB16(buf+3) >> 1;
      71             : }
      72             : 
      73             : #endif /* AVFORMAT_MPEG_H */

Generated by: LCOV version 1.13