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 #define FIRST_OTHER_PID 0x0020
62 #define LAST_OTHER_PID 0x1FFA
63 /* PID 0x1FFB is used by DigiCipher 2/ATSC MGT metadata */
64 /* PID from 0x1FFC to 0x1FFE may be assigned as needed to PMT, elementary
65  * streams and other data tables */
66 #define NULL_PID 0x1FFF /* Null packet (used for fixed bandwidth padding) */
67 
68 /* m2ts pids */
69 #define M2TS_PMT_PID 0x0100
70 #define M2TS_PCR_PID 0x1001
71 #define M2TS_VIDEO_PID 0x1011
72 #define M2TS_AUDIO_START_PID 0x1100
73 #define M2TS_PGSSUB_START_PID 0x1200
74 #define M2TS_TEXTSUB_PID 0x1800
75 #define M2TS_SECONDARY_AUDIO_START_PID 0x1A00
76 #define M2TS_SECONDARY_VIDEO_START_PID 0x1B00
77 
78 /* table ids */
79 #define PAT_TID 0x00 /* Program Association section */
80 #define CAT_TID 0x01 /* Conditional Access section */
81 #define PMT_TID 0x02 /* Program Map section */
82 #define TSDT_TID 0x03 /* Transport Stream Description section */
83 /* TID from 0x04 to 0x3F are reserved */
84 #define M4OD_TID 0x05
85 #define NIT_TID 0x40 /* Network Information section - actual network */
86 #define ONIT_TID 0x41 /* Network Information section - other network */
87 #define SDT_TID 0x42 /* Service Description section - actual TS */
88 /* TID from 0x43 to 0x45 are reserved for future use */
89 #define OSDT_TID 0x46 /* Service Descrition section - other TS */
90 /* TID from 0x47 to 0x49 are reserved for future use */
91 #define BAT_TID 0x4A /* Bouquet Association section */
92 #define UNT_TID 0x4B /* Update Notification Table section */
93 #define DFI_TID 0x4C /* Downloadable Font Info section */
94 /* TID 0x4D is reserved for future use */
95 #define EIT_TID 0x4E /* Event Information section - actual TS */
96 #define OEIT_TID 0x4F /* Event Information section - other TS */
97 #define EITS_START_TID 0x50 /* Event Information section schedule - actual TS */
98 #define EITS_END_TID 0x5F /* Event Information section schedule - actual TS */
99 #define OEITS_START_TID 0x60 /* Event Information section schedule - other TS */
100 #define OEITS_END_TID 0x6F /* Event Information section schedule - other TS */
101 #define TDT_TID 0x70 /* Time Date section */
102 #define RST_TID 0x71 /* Running Status section */
103 #define ST_TID 0x72 /* Stuffing section */
104 #define TOT_TID 0x73 /* Time Offset section */
105 #define AIT_TID 0x74 /* Application Inforamtion section */
106 #define CT_TID 0x75 /* Container section */
107 #define RCT_TID 0x76 /* Related Content section */
108 #define CIT_TID 0x77 /* Content Identifier section */
109 #define MPE_FEC_TID 0x78 /* MPE-FEC section */
110 #define RPNT_TID 0x79 /* Resolution Provider Notification section */
111 #define MPE_IFEC_TID 0x7A /* MPE-IFEC section */
112 #define PROTMT_TID 0x7B /* Protection Message section */
113 /* TID from 0x7C to 0x7D are reserved for future use */
114 #define DIT_TID 0x7E /* Discontinuity Information section */
115 #define SIT_TID 0x7F /* Selection Information section */
116 /* TID from 0x80 to 0xFE are user defined */
117 /* TID 0xFF is reserved */
118 
119 #define STREAM_TYPE_VIDEO_MPEG1 0x01
120 #define STREAM_TYPE_VIDEO_MPEG2 0x02
121 #define STREAM_TYPE_AUDIO_MPEG1 0x03
122 #define STREAM_TYPE_AUDIO_MPEG2 0x04
123 #define STREAM_TYPE_PRIVATE_SECTION 0x05
124 #define STREAM_TYPE_PRIVATE_DATA 0x06
125 #define STREAM_TYPE_AUDIO_AAC 0x0f
126 #define STREAM_TYPE_AUDIO_AAC_LATM 0x11
127 #define STREAM_TYPE_VIDEO_MPEG4 0x10
128 #define STREAM_TYPE_METADATA 0x15
129 #define STREAM_TYPE_VIDEO_H264 0x1b
130 #define STREAM_TYPE_VIDEO_HEVC 0x24
131 #define STREAM_TYPE_VIDEO_VVC 0x33
132 #define STREAM_TYPE_VIDEO_CAVS 0x42
133 #define STREAM_TYPE_VIDEO_AVS2 0xd2
134 #define STREAM_TYPE_VIDEO_AVS3 0xd4
135 #define STREAM_TYPE_VIDEO_VC1 0xea
136 #define STREAM_TYPE_VIDEO_DIRAC 0xd1
137 
138 #define STREAM_TYPE_AUDIO_AC3 0x81
139 #define STREAM_TYPE_AUDIO_DTS 0x82
140 #define STREAM_TYPE_AUDIO_TRUEHD 0x83
141 #define STREAM_TYPE_AUDIO_EAC3 0x87
142 
143 /* ISO/IEC 13818-1 Table 2-22 */
144 #define STREAM_ID_PROGRAM_STREAM_MAP 0xbc
145 #define STREAM_ID_PRIVATE_STREAM_1 0xbd
146 #define STREAM_ID_PADDING_STREAM 0xbe
147 #define STREAM_ID_PRIVATE_STREAM_2 0xbf
148 #define STREAM_ID_AUDIO_STREAM_0 0xc0
149 #define STREAM_ID_VIDEO_STREAM_0 0xe0
150 #define STREAM_ID_ECM_STREAM 0xf0
151 #define STREAM_ID_EMM_STREAM 0xf1
152 #define STREAM_ID_DSMCC_STREAM 0xf2
153 #define STREAM_ID_TYPE_E_STREAM 0xf8
154 #define STREAM_ID_METADATA_STREAM 0xfc
155 #define STREAM_ID_EXTENDED_STREAM_ID 0xfd
156 #define STREAM_ID_PROGRAM_STREAM_DIRECTORY 0xff
157 
158 /* ISO/IEC 13818-1 Table 2-45 */
159 #define VIDEO_STREAM_DESCRIPTOR 0x02
160 #define REGISTRATION_DESCRIPTOR 0x05
161 #define ISO_639_LANGUAGE_DESCRIPTOR 0x0a
162 #define IOD_DESCRIPTOR 0x1d
163 #define SL_DESCRIPTOR 0x1e
164 #define FMC_DESCRIPTOR 0x1f
165 #define METADATA_DESCRIPTOR 0x26
166 #define METADATA_STD_DESCRIPTOR 0x27
167 
168 typedef struct MpegTSContext MpegTSContext;
169 
172  const uint8_t *buf, int len);
174 
175 typedef struct SLConfigDescr {
181  int use_idle;
184  int ocr_len;
185  int au_len;
190 } SLConfigDescr;
191 
192 typedef struct Mp4Descr {
193  int es_id;
197 } Mp4Descr;
198 
199 /*
200  * ETSI 300 468 descriptor 0x6A(AC-3)
201  * Refer to: ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
202  */
203 typedef struct DVBAC3Descriptor {
205  uint8_t bsid_flag;
206  uint8_t mainid_flag;
207  uint8_t asvc_flag;
208  uint8_t reserved_flags;
209  uint8_t component_type;
210  uint8_t bsid;
211  uint8_t mainid;
212  uint8_t asvc;
214 
215 /**
216  * Parse an MPEG-2 descriptor
217  * @param[in] fc Format context (used for logging only)
218  * @param st Stream
219  * @param stream_type STREAM_TYPE_xxx
220  * @param pp Descriptor buffer pointer
221  * @param desc_list_end End of buffer
222  * @return <0 to stop processing
223  */
224 int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type,
225  const uint8_t **pp, const uint8_t *desc_list_end,
226  Mp4Descr *mp4_descr, int mp4_descr_count, int pid,
227  MpegTSContext *ts);
228 
229 /**
230  * Check presence of H264 startcode
231  * @return <0 to stop processing
232  */
234 
235 #endif /* AVFORMAT_MPEGTS_H */
SLConfigDescr::au_seq_num_len
int au_seq_num_len
Definition: mpegts.h:188
DVBAC3Descriptor::component_type
uint8_t component_type
Definition: mpegts.h:209
fc
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:472
DVBAC3Descriptor::reserved_flags
uint8_t reserved_flags
Definition: mpegts.h:208
SLConfigDescr::use_idle
int use_idle
Definition: mpegts.h:181
SLConfigDescr::inst_bitrate_len
int inst_bitrate_len
Definition: mpegts.h:186
avpriv_mpegts_parse_open
MpegTSContext * avpriv_mpegts_parse_open(AVFormatContext *s)
Definition: mpegts.c:3385
SLConfigDescr::use_padding
int use_padding
Definition: mpegts.h:179
DVBAC3Descriptor::asvc_flag
uint8_t asvc_flag
Definition: mpegts.h:207
SLConfigDescr::use_rand_acc_pt
int use_rand_acc_pt
Definition: mpegts.h:178
SLConfigDescr::timestamp_len
int timestamp_len
Definition: mpegts.h:183
avpriv_mpegts_parse_packet
int avpriv_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt, const uint8_t *buf, int len)
Definition: mpegts.c:3407
pkt
AVPacket * pkt
Definition: movenc.c:60
Mp4Descr::sl
SLConfigDescr sl
Definition: mpegts.h:196
s
#define s(width, name)
Definition: cbs_vp9.c:198
SLConfigDescr::degr_prior_len
int degr_prior_len
Definition: mpegts.h:187
DVBAC3Descriptor::component_type_flag
uint8_t component_type_flag
Definition: mpegts.h:204
AVFormatContext
Format I/O context.
Definition: avformat.h:1300
Mp4Descr::es_id
int es_id
Definition: mpegts.h:193
Mp4Descr::dec_config_descr_len
int dec_config_descr_len
Definition: mpegts.h:194
SLConfigDescr::ocr_len
int ocr_len
Definition: mpegts.h:184
SLConfigDescr::packet_seq_num_len
int packet_seq_num_len
Definition: mpegts.h:189
SLConfigDescr::use_au_start
int use_au_start
Definition: mpegts.h:176
avpriv_mpegts_parse_close
void avpriv_mpegts_parse_close(MpegTSContext *ts)
Definition: mpegts.c:3432
DVBAC3Descriptor::bsid_flag
uint8_t bsid_flag
Definition: mpegts.h:205
MpegTSContext
Definition: mpegts.c:129
SLConfigDescr::use_au_end
int use_au_end
Definition: mpegts.h:177
len
int len
Definition: vorbis_enc_data.h:426
DVBAC3Descriptor::asvc
uint8_t asvc
Definition: mpegts.h:212
SLConfigDescr::au_len
int au_len
Definition: mpegts.h:185
ff_check_h264_startcode
int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
Check presence of H264 startcode.
Definition: mpegtsenc.c:1785
AVStream
Stream structure.
Definition: avformat.h:748
Mp4Descr::dec_config_descr
uint8_t * dec_config_descr
Definition: mpegts.h:195
SLConfigDescr::use_timestamps
int use_timestamps
Definition: mpegts.h:180
avformat.h
DVBAC3Descriptor
Definition: mpegts.h:203
SLConfigDescr::timestamp_res
int timestamp_res
Definition: mpegts.h:182
DVBAC3Descriptor::mainid
uint8_t mainid
Definition: mpegts.h:211
DVBAC3Descriptor::bsid
uint8_t bsid
Definition: mpegts.h:210
AVPacket
This structure stores compressed data.
Definition: packet.h:516
ff_parse_mpeg2_descriptor
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:1813
Mp4Descr
Definition: mpegts.h:192
SLConfigDescr
Definition: mpegts.h:175
DVBAC3Descriptor::mainid_flag
uint8_t mainid_flag
Definition: mpegts.h:206