ffmpeg/libavformat/mpegts.h

   1 /*
   2  * MPEG2 transport stream defines
   3  * Copyright (c) 2003 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_MPEGTS_H
  23 #define AVFORMAT_MPEGTS_H
  24
  25 #include "avformat.h"
  26
  27 #define TS_FEC_PACKET_SIZE 204
  28 #define TS_DVHS_PACKET_SIZE 192
  29 #define TS_PACKET_SIZE 188
  30 #define TS_MAX_PACKET_SIZE 204
  31
  32 #define NB_PID_MAX 8192
  33 #define MAX_SECTION_SIZE 4096
  34
  35 /* pids */
  36 #define PAT_PID                 0x0000
  37 #define SDT_PID                 0x0011
  38
  39 /* table ids */
  40 #define PAT_TID   0x00
  41 #define PMT_TID   0x02
  42 #define M4OD_TID  0x05
  43 #define SDT_TID   0x42
  44
  45 #define STREAM_TYPE_VIDEO_MPEG1     0x01
  46 #define STREAM_TYPE_VIDEO_MPEG2     0x02
  47 #define STREAM_TYPE_AUDIO_MPEG1     0x03
  48 #define STREAM_TYPE_AUDIO_MPEG2     0x04
  49 #define STREAM_TYPE_PRIVATE_SECTION 0x05
  50 #define STREAM_TYPE_PRIVATE_DATA    0x06
  51 #define STREAM_TYPE_AUDIO_AAC       0x0f
  52 #define STREAM_TYPE_AUDIO_AAC_LATM  0x11
  53 #define STREAM_TYPE_VIDEO_MPEG4     0x10
  54 #define STREAM_TYPE_VIDEO_H264      0x1b
  55 #define STREAM_TYPE_VIDEO_HEVC      0x24
  56 #define STREAM_TYPE_VIDEO_CAVS      0x42
  57 #define STREAM_TYPE_VIDEO_VC1       0xea
  58 #define STREAM_TYPE_VIDEO_DIRAC     0xd1
  59
  60 #define STREAM_TYPE_AUDIO_AC3       0x81
  61 #define STREAM_TYPE_AUDIO_DTS       0x82
  62 #define STREAM_TYPE_AUDIO_TRUEHD    0x83
  63
  64 typedef struct MpegTSContext MpegTSContext;
  65
  66 MpegTSContext *avpriv_mpegts_parse_open(AVFormatContext *s);
  67 int avpriv_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt,
  68                                const uint8_t *buf, int len);
  69 void avpriv_mpegts_parse_close(MpegTSContext *ts);
  70
  71 typedef struct SLConfigDescr {
  72     int use_au_start;
  73     int use_au_end;
  74     int use_rand_acc_pt;
  75     int use_padding;
  76     int use_timestamps;
  77     int use_idle;
  78     int timestamp_res;
  79     int timestamp_len;
  80     int ocr_len;
  81     int au_len;
  82     int inst_bitrate_len;
  83     int degr_prior_len;
  84     int au_seq_num_len;
  85     int packet_seq_num_len;
  86 } SLConfigDescr;
  87
  88 typedef struct Mp4Descr {
  89     int es_id;
  90     int dec_config_descr_len;
  91     uint8_t *dec_config_descr;
  92     SLConfigDescr sl;
  93 } Mp4Descr;
  94
  95 /**
  96  * Parse an MPEG-2 descriptor
  97  * @param[in] fc                    Format context (used for logging only)
  98  * @param st                        Stream
  99  * @param stream_type               STREAM_TYPE_xxx
 100  * @param pp                        Descriptor buffer pointer
 101  * @param desc_list_end             End of buffer
 102  * @return <0 to stop processing
 103  */
 104 int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type,
 105                               const uint8_t **pp, const uint8_t *desc_list_end,
 106                               Mp4Descr *mp4_descr, int mp4_descr_count, int pid,
 107                               MpegTSContext *ts);
 108
 109 /**
 110  * Check presence of H264 startcode
 111  * @return <0 to stop processing
 112  */
 113 int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt);
 114
 115 #endif /* AVFORMAT_MPEGTS_H */