FFmpeg
mpegts.h
Go to the documentation of this file.
1 /*
2  * MPEG-2 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 USUAL_SECTION_SIZE 1024 /* except EIT which is limited to 4096 */
34 #define MAX_SECTION_SIZE 4096
35 
36 /* pids */
37 #define PAT_PID 0x0000 /* Program Association Table */
38 #define CAT_PID 0x0001 /* Conditional Access Table */
39 #define TSDT_PID 0x0002 /* Transport Stream Description Table */
40 #define IPMP_PID 0x0003
41 /* PID from 0x0004 to 0x000F are reserved */
42 #define NIT_PID 0x0010 /* Network Information Table */
43 #define SDT_PID 0x0011 /* Service Description Table */
44 #define BAT_PID 0x0011 /* Bouquet Association Table */
45 #define EIT_PID 0x0012 /* Event Information Table */
46 #define RST_PID 0x0013 /* Running Status Table */
47 #define TDT_PID 0x0014 /* Time and Date Table */
48 #define TOT_PID 0x0014
49 #define NET_SYNC_PID 0x0015
50 #define RNT_PID 0x0016 /* RAR Notification Table */
51 /* PID from 0x0017 to 0x001B are reserved for future use */
52 /* PID value 0x001C allocated to link-local inband signalling shall not be
53  * used on any broadcast signals. It shall only be used between devices in a
54  * controlled environment. */
55 #define LINK_LOCAL_PID 0x001C
56 #define MEASUREMENT_PID 0x001D
57 #define DIT_PID 0x001E /* Discontinuity Information Table */
58 #define SIT_PID 0x001F /* Selection Information Table */
59 /* PID from 0x0020 to 0x1FFA may be assigned as needed to PMT, elementary
60  * streams and other data tables */
61 /* PID 0x1FFB is used by DigiCipher 2/ATSC MGT metadata */
62 /* PID from 0x1FFC to 0x1FFE may be assigned as needed to PMT, elementary
63  * streams and other data tables */
64 #define NULL_PID 0x1FFF /* Null packet (used for fixed bandwidth padding) */
65 
66 /* table ids */
67 #define PAT_TID 0x00 /* Program Association section */
68 #define CAT_TID 0x01 /* Conditional Access section */
69 #define PMT_TID 0x02 /* Program Map section */
70 #define TSDT_TID 0x03 /* Transport Stream Description section */
71 /* TID from 0x04 to 0x3F are reserved */
72 #define M4OD_TID 0x05
73 #define NIT_TID 0x40 /* Network Information section - actual network */
74 #define ONIT_TID 0x41 /* Network Information section - other network */
75 #define SDT_TID 0x42 /* Service Description section - actual TS */
76 /* TID from 0x43 to 0x45 are reserved for future use */
77 #define OSDT_TID 0x46 /* Service Descrition section - other TS */
78 /* TID from 0x47 to 0x49 are reserved for future use */
79 #define BAT_TID 0x4A /* Bouquet Association section */
80 #define UNT_TID 0x4B /* Update Notification Table section */
81 #define DFI_TID 0x4C /* Downloadable Font Info section */
82 /* TID 0x4D is reserved for future use */
83 #define EIT_TID 0x4E /* Event Information section - actual TS */
84 #define OEIT_TID 0x4F /* Event Information section - other TS */
85 #define EITS_START_TID 0x50 /* Event Information section schedule - actual TS */
86 #define EITS_END_TID 0x5F /* Event Information section schedule - actual TS */
87 #define OEITS_START_TID 0x60 /* Event Information section schedule - other TS */
88 #define OEITS_END_TID 0x6F /* Event Information section schedule - other TS */
89 #define TDT_TID 0x70 /* Time Date section */
90 #define RST_TID 0x71 /* Running Status section */
91 #define ST_TID 0x72 /* Stuffing section */
92 #define TOT_TID 0x73 /* Time Offset section */
93 #define AIT_TID 0x74 /* Application Inforamtion section */
94 #define CT_TID 0x75 /* Container section */
95 #define RCT_TID 0x76 /* Related Content section */
96 #define CIT_TID 0x77 /* Content Identifier section */
97 #define MPE_FEC_TID 0x78 /* MPE-FEC section */
98 #define RPNT_TID 0x79 /* Resolution Provider Notification section */
99 #define MPE_IFEC_TID 0x7A /* MPE-IFEC section */
100 #define PROTMT_TID 0x7B /* Protection Message section */
101 /* TID from 0x7C to 0x7D are reserved for future use */
102 #define DIT_TID 0x7E /* Discontinuity Information section */
103 #define SIT_TID 0x7F /* Selection Information section */
104 /* TID from 0x80 to 0xFE are user defined */
105 /* TID 0xFF is reserved */
106 
107 #define STREAM_TYPE_VIDEO_MPEG1 0x01
108 #define STREAM_TYPE_VIDEO_MPEG2 0x02
109 #define STREAM_TYPE_AUDIO_MPEG1 0x03
110 #define STREAM_TYPE_AUDIO_MPEG2 0x04
111 #define STREAM_TYPE_PRIVATE_SECTION 0x05
112 #define STREAM_TYPE_PRIVATE_DATA 0x06
113 #define STREAM_TYPE_AUDIO_AAC 0x0f
114 #define STREAM_TYPE_AUDIO_AAC_LATM 0x11
115 #define STREAM_TYPE_VIDEO_MPEG4 0x10
116 #define STREAM_TYPE_METADATA 0x15
117 #define STREAM_TYPE_VIDEO_H264 0x1b
118 #define STREAM_TYPE_VIDEO_HEVC 0x24
119 #define STREAM_TYPE_VIDEO_CAVS 0x42
120 #define STREAM_TYPE_VIDEO_VC1 0xea
121 #define STREAM_TYPE_VIDEO_DIRAC 0xd1
122 
123 #define STREAM_TYPE_AUDIO_AC3 0x81
124 #define STREAM_TYPE_AUDIO_DTS 0x82
125 #define STREAM_TYPE_AUDIO_TRUEHD 0x83
126 #define STREAM_TYPE_AUDIO_EAC3 0x87
127 
128 typedef struct MpegTSContext MpegTSContext;
129 
132  const uint8_t *buf, int len);
134 
135 typedef struct SLConfigDescr {
141  int use_idle;
144  int ocr_len;
145  int au_len;
150 } SLConfigDescr;
151 
152 typedef struct Mp4Descr {
153  int es_id;
157 } Mp4Descr;
158 
159 /**
160  * Parse an MPEG-2 descriptor
161  * @param[in] fc Format context (used for logging only)
162  * @param st Stream
163  * @param stream_type STREAM_TYPE_xxx
164  * @param pp Descriptor buffer pointer
165  * @param desc_list_end End of buffer
166  * @return <0 to stop processing
167  */
168 int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type,
169  const uint8_t **pp, const uint8_t *desc_list_end,
170  Mp4Descr *mp4_descr, int mp4_descr_count, int pid,
171  MpegTSContext *ts);
172 
173 /**
174  * Check presence of H264 startcode
175  * @return <0 to stop processing
176  */
178 
179 #endif /* AVFORMAT_MPEGTS_H */
static AVPacket pkt
SLConfigDescr sl
Definition: mpegts.h:156
int packet_seq_num_len
Definition: mpegts.h:149
int es_id
Definition: mpegts.h:153
void avpriv_mpegts_parse_close(MpegTSContext *ts)
Definition: mpegts.c:3335
int inst_bitrate_len
Definition: mpegts.h:146
Format I/O context.
Definition: avformat.h:1358
uint8_t
int au_seq_num_len
Definition: mpegts.h:148
int use_au_start
Definition: mpegts.h:136
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:551
int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type, const uint8_t **pp, const uint8_t *desc_list_end, Mp4Descr *mp4_descr, int mp4_descr_count, int pid, MpegTSContext *ts)
Parse an MPEG-2 descriptor.
Definition: mpegts.c:1769
int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
Check presence of H264 startcode.
Definition: mpegtsenc.c:1441
int timestamp_len
Definition: mpegts.h:143
MpegTSContext * avpriv_mpegts_parse_open(AVFormatContext *s)
Definition: mpegts.c:3289
int ocr_len
Definition: mpegts.h:144
#define s(width, name)
Definition: cbs_vp9.c:257
Stream structure.
Definition: avformat.h:881
uint8_t * dec_config_descr
Definition: mpegts.h:155
int use_au_end
Definition: mpegts.h:137
void * buf
Definition: avisynth_c.h:766
int use_timestamps
Definition: mpegts.h:140
int use_idle
Definition: mpegts.h:141
int dec_config_descr_len
Definition: mpegts.h:154
Main libavformat public API header.
int use_rand_acc_pt
Definition: mpegts.h:138
int len
int timestamp_res
Definition: mpegts.h:142
int use_padding
Definition: mpegts.h:139
int degr_prior_len
Definition: mpegts.h:147
int avpriv_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt, const uint8_t *buf, int len)
Definition: mpegts.c:3310
int au_len
Definition: mpegts.h:145
This structure stores compressed data.
Definition: avcodec.h:1457