FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/mpegtsenc.c
Date: 2026-10-30 17:37:53
Exec Total Coverage
Lines: 755 1483 50.9%
Functions: 35 41 85.4%
Branches: 377 946 39.9%
Line Branch Exec Source
1 /*
2 * MPEG-2 transport stream (aka DVB) muxer
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 #include "libavutil/avassert.h"
23 #include "libavutil/bswap.h"
24 #include "libavutil/crc.h"
25 #include "libavutil/dict.h"
26 #include "libavutil/intreadwrite.h"
27 #include "libavutil/mathematics.h"
28 #include "libavutil/mem.h"
29 #include "libavutil/opt.h"
30
31 #include "libavcodec/ac3_parser_internal.h"
32 #include "libavcodec/bytestream.h"
33 #include "libavcodec/defs.h"
34 #include "libavcodec/h264.h"
35 #include "libavcodec/hevc/hevc.h"
36 #include "libavcodec/vvc.h"
37 #include "libavcodec/startcode.h"
38
39 #include "avformat.h"
40 #include "avio_internal.h"
41 #include "internal.h"
42 #include "lcevc.h"
43 #include "mpegts.h"
44 #include "mux.h"
45
46 #define PCR_TIME_BASE 27000000
47
48 /* write DVB SI sections */
49
50 #define DVB_PRIVATE_NETWORK_START 0xff01
51
52 /*********************************************/
53 /* mpegts section writer */
54
55 typedef struct MpegTSSection {
56 int pid;
57 int cc;
58 int discontinuity;
59 void (*write_packet)(struct MpegTSSection *s, const uint8_t *packet);
60 void *opaque;
61 int remaining;
62 } MpegTSSection;
63
64 typedef struct MpegTSService {
65 MpegTSSection pmt; /* MPEG-2 PMT table context */
66 int sid; /* service ID */
67 uint8_t name[256];
68 uint8_t provider_name[256];
69 int pcr_pid;
70 AVProgram *program;
71 } MpegTSService;
72
73 // service_type values as defined in ETSI 300 468
74 enum {
75 MPEGTS_SERVICE_TYPE_DIGITAL_TV = 0x01,
76 MPEGTS_SERVICE_TYPE_DIGITAL_RADIO = 0x02,
77 MPEGTS_SERVICE_TYPE_TELETEXT = 0x03,
78 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO = 0x0A,
79 MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV = 0x11,
80 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV = 0x16,
81 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV = 0x19,
82 MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV = 0x1F,
83 };
84 typedef struct MpegTSWrite {
85 const AVClass *av_class;
86 MpegTSSection pat; /* MPEG-2 PAT table */
87 MpegTSSection sdt; /* MPEG-2 SDT table context */
88 MpegTSSection nit; /* MPEG-2 NIT table context */
89 MpegTSService **services;
90 AVPacket *pkt;
91 int64_t sdt_period; /* SDT period in PCR time base */
92 int64_t pat_period; /* PAT/PMT period in PCR time base */
93 int64_t nit_period; /* NIT period in PCR time base */
94 int nb_services;
95 int64_t first_pcr;
96 int first_dts_checked;
97 int64_t next_pcr;
98 int mux_rate; ///< set to 1 when VBR
99 int pes_payload_size;
100 int64_t total_size;
101
102 int transport_stream_id;
103 int original_network_id;
104 int service_id;
105 int service_type;
106
107 int pmt_start_pid;
108 int start_pid;
109 int m2ts_mode;
110 int m2ts_video_pid;
111 int m2ts_audio_pid;
112 int m2ts_pgssub_pid;
113 int m2ts_textsub_pid;
114
115 int pcr_period_ms;
116 #define MPEGTS_FLAG_REEMIT_PAT_PMT 0x01
117 #define MPEGTS_FLAG_AAC_LATM 0x02
118 #define MPEGTS_FLAG_PAT_PMT_AT_FRAMES 0x04
119 #define MPEGTS_FLAG_SYSTEM_B 0x08
120 #define MPEGTS_FLAG_DISCONT 0x10
121 #define MPEGTS_FLAG_NIT 0x20
122 #define MPEGTS_FLAG_OMIT_RAI 0x40
123 int flags;
124 int copyts;
125 int tables_version;
126 int64_t pat_period_us;
127 int64_t sdt_period_us;
128 int64_t nit_period_us;
129 int64_t last_pat_ts;
130 int64_t last_sdt_ts;
131 int64_t last_nit_ts;
132
133 uint8_t provider_name[256];
134
135 int omit_video_pes_length;
136
137 int pcr_pid; ///< user-specified separate PCR PID (-1 = use video PID)
138 int64_t pcr_stream_pcr_period; ///< PCR period for the dedicated stream
139 int64_t pcr_stream_last_pcr; ///< last PCR sent on the dedicated PID
140 } MpegTSWrite;
141
142 /* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
143 #define DEFAULT_PES_HEADER_FREQ 16
144 #define DEFAULT_PES_PAYLOAD_SIZE ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
145
146 /* The section length is 12 bits. The first 2 are set to 0, the remaining
147 * 10 bits should not exceed 1021. */
148 #define SECTION_LENGTH 1020
149
150 /* NOTE: 4 bytes must be left at the end for the crc32 */
151 1425 static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
152 {
153 unsigned int crc;
154 unsigned char packet[TS_PACKET_SIZE];
155 const unsigned char *buf_ptr;
156 unsigned char *q;
157 int first, b, len1, left;
158
159 2850 crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE),
160 1425 -1, buf, len - 4));
161
162 1425 buf[len - 4] = (crc >> 24) & 0xff;
163 1425 buf[len - 3] = (crc >> 16) & 0xff;
164 1425 buf[len - 2] = (crc >> 8) & 0xff;
165 1425 buf[len - 1] = crc & 0xff;
166
167 /* send each packet */
168 1425 buf_ptr = buf;
169
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 2850 while (len > 0) {
170 1425 first = buf == buf_ptr;
171 1425 q = packet;
172 1425 *q++ = SYNC_BYTE;
173 1425 b = s->pid >> 8;
174
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 1425 if (first)
175 1425 b |= 0x40;
176 1425 *q++ = b;
177 1425 *q++ = s->pid;
178 1425 s->cc = (s->cc + 1) & 0xf;
179 1425 *q++ = 0x10 | s->cc;
180
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 1425 if (s->discontinuity) {
181 ✗ q[-1] |= 0x20;
182 ✗ *q++ = 1;
183 ✗ *q++ = 0x80;
184 ✗ s->discontinuity = 0;
185 }
186
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 1425 if (first)
187 1425 *q++ = 0; /* 0 offset */
188 1425 len1 = TS_PACKET_SIZE - (q - packet);
189
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 1425 if (len1 > len)
190 1425 len1 = len;
191 1425 memcpy(q, buf_ptr, len1);
192 1425 q += len1;
193 /* add known padding data */
194 1425 left = TS_PACKET_SIZE - (q - packet);
195
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 1425 if (left > 0)
196 1425 memset(q, STUFFING_BYTE, left);
197
198 1425 s->write_packet(s, packet);
199
200 1425 buf_ptr += len1;
201 1425 len -= len1;
202 }
203 1425 }
204
205 5750 static inline void put16(uint8_t **q_ptr, int val)
206 {
207 uint8_t *q;
208 5750 q = *q_ptr;
209 5750 *q++ = val >> 8;
210 5750 *q++ = val;
211 5750 *q_ptr = q;
212 5750 }
213
214 1425 static int mpegts_write_section1(MpegTSSection *s, int tid, int id,
215 int version, int sec_num, int last_sec_num,
216 uint8_t *buf, int len)
217 {
218 uint8_t section[1024], *q;
219 unsigned int tot_len;
220 /* reserved_future_use field must be set to 1 for SDT and NIT */
221
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 1425 unsigned int flags = (tid == SDT_TID || tid == NIT_TID) ? 0xf000 : 0xb000;
222
223 1425 tot_len = 3 + 5 + len + 4;
224 /* check if not too big */
225
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 1425 if (tot_len > 1024)
226 ✗ return AVERROR_INVALIDDATA;
227
228 1425 q = section;
229 1425 *q++ = tid;
230 1425 put16(&q, flags | (len + 5 + 4)); /* 5 byte header + 4 byte CRC */
231 1425 put16(&q, id);
232 1425 *q++ = 0xc1 | (version << 1); /* current_next_indicator = 1 */
233 1425 *q++ = sec_num;
234 1425 *q++ = last_sec_num;
235 1425 memcpy(q, buf, len);
236
237 1425 mpegts_write_section(s, section, tot_len);
238 1425 return 0;
239 }
240
241 /*********************************************/
242 /* mpegts writer */
243
244 #define DEFAULT_PROVIDER_NAME "FFmpeg"
245 #define DEFAULT_SERVICE_NAME "Service"
246
247 /* we retransmit the SI info at this rate */
248 #define SDT_RETRANS_TIME 500
249 #define PAT_RETRANS_TIME 100
250 #define PCR_RETRANS_TIME 20
251 #define NIT_RETRANS_TIME 500
252
253 typedef struct MpegTSWriteStream {
254 int pid; /* stream associated pid */
255 int cc;
256 int discontinuity;
257 int payload_size;
258 int first_timestamp_checked; ///< first pts/dts check needed
259 int prev_payload_key;
260 int64_t payload_pts;
261 int64_t payload_dts;
262 int payload_flags;
263 uint8_t *payload;
264 AVFormatContext *amux;
265 int data_st_warning;
266
267 int64_t pcr_period; /* PCR period in PCR time base */
268 int64_t last_pcr;
269
270 /* For Opus */
271 int opus_queued_samples;
272 int opus_pending_trim_start;
273
274 DVBAC3Descriptor *dvb_ac3_desc;
275
276 int nb_stream_groups;
277 AVStreamGroup **stream_groups;
278 } MpegTSWriteStream;
279
280 608 static void mpegts_write_pat(AVFormatContext *s)
281 {
282 608 MpegTSWrite *ts = s->priv_data;
283 MpegTSService *service;
284 uint8_t data[SECTION_LENGTH], *q;
285 int i;
286
287 608 q = data;
288
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 608 if (ts->flags & MPEGTS_FLAG_NIT) {
289 ✗ put16(&q, 0x0000);
290 ✗ put16(&q, NIT_PID);
291 }
292
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 1216 for (i = 0; i < ts->nb_services; i++) {
293 608 service = ts->services[i];
294 608 put16(&q, service->sid);
295 608 put16(&q, 0xe000 | service->pmt.pid);
296 }
297 608 mpegts_write_section1(&ts->pat, PAT_TID, ts->transport_stream_id, ts->tables_version, 0, 0,
298 608 data, q - data);
299 608 }
300
301 418 static void putbuf(uint8_t **q_ptr, const uint8_t *buf, size_t len)
302 {
303 418 memcpy(*q_ptr, buf, len);
304 418 *q_ptr += len;
305 418 }
306
307 ✗ static int put_arib_caption_descriptor(AVFormatContext *s, uint8_t **q_ptr,
308 AVCodecParameters *codecpar)
309 {
310 uint8_t stream_identifier;
311 uint16_t data_component_id;
312 ✗ uint8_t *q = *q_ptr;
313
314 ✗ switch (codecpar->profile) {
315 ✗ case AV_PROFILE_ARIB_PROFILE_A:
316 ✗ stream_identifier = 0x30;
317 ✗ data_component_id = 0x0008;
318 ✗ break;
319 ✗ case AV_PROFILE_ARIB_PROFILE_C:
320 ✗ stream_identifier = 0x87;
321 ✗ data_component_id = 0x0012;
322 ✗ break;
323 ✗ default:
324 ✗ av_log(s, AV_LOG_ERROR,
325 "Unset/unknown ARIB caption profile %d utilized!\n",
326 codecpar->profile);
327 ✗ return AVERROR_INVALIDDATA;
328 }
329
330 // stream_identifier_descriptor
331 ✗ *q++ = STREAM_IDENTIFIER_DESCRIPTOR; // descriptor_tag
332 ✗ *q++ = 1; // descriptor_length
333 ✗ *q++ = stream_identifier; // component_tag: stream_identifier
334
335 // data_component_descriptor, defined in ARIB STD-B10, part 2, 6.2.20
336 ✗ *q++ = DATA_COMPONENT_DESCRIPTOR; // descriptor_tag: ARIB data coding type descriptor
337 ✗ *q++ = 3; // descriptor_length
338 ✗ put16(&q, data_component_id); // data_component_id
339 // additional_arib_caption_info: defined in ARIB STD-B24, fascicle 1, Part 3, 9.6.1
340 // Here we utilize a pre-defined set of values defined in ARIB TR-B14,
341 // Fascicle 2, 4.2.8.5 for PMT usage, with the reserved bits in the middle
342 // set to 1 (as that is what every broadcaster seems to be doing in
343 // production).
344 ✗ *q++ = 0x3D; // DMF('0011'), Reserved('11'), Timing('01')
345
346 ✗ *q_ptr = q;
347
348 ✗ return 0;
349 }
350
351 63 static void put_registration_descriptor(uint8_t **q_ptr, uint32_t tag)
352 {
353 63 uint8_t *q = *q_ptr;
354 63 *q++ = REGISTRATION_DESCRIPTOR;
355 63 *q++ = 4;
356 63 *q++ = tag;
357 63 *q++ = tag >> 8;
358 63 *q++ = tag >> 16;
359 63 *q++ = tag >> 24;
360 63 *q_ptr = q;
361 63 }
362
363 598 static int get_dvb_stream_type(AVFormatContext *s, AVStream *st)
364 {
365 598 MpegTSWrite *ts = s->priv_data;
366 598 MpegTSWriteStream *ts_st = st->priv_data;
367 int stream_type;
368
369
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 598 switch (st->codecpar->codec_id) {
370 35 case AV_CODEC_ID_MPEG1VIDEO:
371 case AV_CODEC_ID_MPEG2VIDEO:
372 35 stream_type = STREAM_TYPE_VIDEO_MPEG2;
373 35 break;
374 ✗ case AV_CODEC_ID_MPEG4:
375 ✗ stream_type = STREAM_TYPE_VIDEO_MPEG4;
376 ✗ break;
377 53 case AV_CODEC_ID_H264:
378 53 stream_type = STREAM_TYPE_VIDEO_H264;
379 53 break;
380 ✗ case AV_CODEC_ID_HEVC:
381 ✗ stream_type = STREAM_TYPE_VIDEO_HEVC;
382 ✗ break;
383 ✗ case AV_CODEC_ID_VVC:
384 ✗ stream_type = STREAM_TYPE_VIDEO_VVC;
385 ✗ break;
386 11 case AV_CODEC_ID_LCEVC:
387 11 stream_type = STREAM_TYPE_VIDEO_LCEVC;
388 11 break;
389 ✗ case AV_CODEC_ID_CAVS:
390 ✗ stream_type = STREAM_TYPE_VIDEO_CAVS;
391 ✗ break;
392 ✗ case AV_CODEC_ID_AVS2:
393 ✗ stream_type = STREAM_TYPE_VIDEO_AVS2;
394 ✗ break;
395 ✗ case AV_CODEC_ID_AVS3:
396 ✗ stream_type = STREAM_TYPE_VIDEO_AVS3;
397 ✗ break;
398 ✗ case AV_CODEC_ID_DIRAC:
399 ✗ stream_type = STREAM_TYPE_VIDEO_DIRAC;
400 ✗ break;
401 ✗ case AV_CODEC_ID_VC1:
402 ✗ stream_type = STREAM_TYPE_VIDEO_VC1;
403 ✗ break;
404 466 case AV_CODEC_ID_MP2:
405 case AV_CODEC_ID_MP3:
406
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 466 if ( st->codecpar->sample_rate > 0
407
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 466 && st->codecpar->sample_rate < 32000) {
408 5 stream_type = STREAM_TYPE_AUDIO_MPEG2;
409 } else {
410 461 stream_type = STREAM_TYPE_AUDIO_MPEG1;
411 }
412 466 break;
413 ✗ case AV_CODEC_ID_AAC:
414 ✗ stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM)
415 ? STREAM_TYPE_AUDIO_AAC_LATM
416 ✗ : STREAM_TYPE_AUDIO_AAC;
417 ✗ break;
418 ✗ case AV_CODEC_ID_AAC_LATM:
419 ✗ stream_type = STREAM_TYPE_AUDIO_AAC_LATM;
420 ✗ break;
421 ✗ case AV_CODEC_ID_AC3:
422 ✗ stream_type = (ts->flags & MPEGTS_FLAG_SYSTEM_B)
423 ? STREAM_TYPE_PRIVATE_DATA
424 ✗ : STREAM_TYPE_ATSC_AUDIO_AC3;
425 ✗ break;
426 ✗ case AV_CODEC_ID_EAC3:
427 ✗ stream_type = (ts->flags & MPEGTS_FLAG_SYSTEM_B)
428 ? STREAM_TYPE_PRIVATE_DATA
429 ✗ : STREAM_TYPE_ATSC_AUDIO_EAC3;
430 ✗ break;
431 ✗ case AV_CODEC_ID_DTS:
432 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_DTS; // should be STREAM_TYPE_PRIVATE_DATA (ETSI TS 101 154), needs a DTS_descriptor() (ETSI EN 300 468)
433 ✗ break;
434 ✗ case AV_CODEC_ID_TRUEHD:
435 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_TRUEHD; // should be STREAM_TYPE_PRIVATE_DATA (ETSI TS 101 154), needs a DTS-HD_descriptor() (ETSI EN 300 468)
436 ✗ break;
437 ✗ case AV_CODEC_ID_OPUS:
438 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
439 ✗ break;
440 ✗ case AV_CODEC_ID_TIMED_ID3:
441 ✗ stream_type = STREAM_TYPE_METADATA;
442 ✗ break;
443 ✗ case AV_CODEC_ID_SMPTE_2038:
444 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
445 ✗ break;
446 ✗ case AV_CODEC_ID_DVB_SUBTITLE:
447 case AV_CODEC_ID_DVB_TELETEXT:
448 case AV_CODEC_ID_ARIB_CAPTION:
449 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
450 ✗ break;
451 ✗ case AV_CODEC_ID_SMPTE_KLV:
452 ✗ if (st->codecpar->profile == AV_PROFILE_KLVA_SYNC) {
453 ✗ stream_type = STREAM_TYPE_METADATA;
454 } else {
455 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
456 }
457 ✗ break;
458 33 default:
459 33 av_log_once(s, AV_LOG_WARNING, AV_LOG_DEBUG, &ts_st->data_st_warning,
460 "Stream %d, codec %s, is muxed as a private data stream "
461 "and may not be recognized upon reading.\n", st->index,
462 33 avcodec_get_name(st->codecpar->codec_id));
463 33 stream_type = STREAM_TYPE_PRIVATE_DATA;
464 33 break;
465 }
466
467 598 return stream_type;
468 }
469
470 30 static int get_m2ts_stream_type(AVFormatContext *s, AVStream *st)
471 {
472 int stream_type;
473 30 MpegTSWriteStream *ts_st = st->priv_data;
474
475
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 30 switch (st->codecpar->codec_id) {
476 ✗ case AV_CODEC_ID_MPEG2VIDEO:
477 ✗ stream_type = STREAM_TYPE_VIDEO_MPEG2;
478 ✗ break;
479 ✗ case AV_CODEC_ID_H264:
480 ✗ stream_type = STREAM_TYPE_VIDEO_H264;
481 ✗ break;
482 ✗ case AV_CODEC_ID_VC1:
483 ✗ stream_type = STREAM_TYPE_VIDEO_VC1;
484 ✗ break;
485 ✗ case AV_CODEC_ID_HEVC:
486 ✗ stream_type = STREAM_TYPE_VIDEO_HEVC;
487 ✗ break;
488 ✗ case AV_CODEC_ID_LCEVC:
489 ✗ stream_type = STREAM_TYPE_VIDEO_LCEVC;
490 ✗ break;
491 30 case AV_CODEC_ID_PCM_BLURAY:
492 30 stream_type = STREAM_TYPE_BLURAY_AUDIO_PCM_BLURAY;
493 30 break;
494 ✗ case AV_CODEC_ID_AC3:
495 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_AC3;
496 ✗ break;
497 ✗ case AV_CODEC_ID_DTS:
498 ✗ stream_type = (st->codecpar->ch_layout.nb_channels > 6) ?
499 ✗ STREAM_TYPE_BLURAY_AUDIO_DTS_HD :
500 STREAM_TYPE_BLURAY_AUDIO_DTS;
501 ✗ break;
502 ✗ case AV_CODEC_ID_TRUEHD:
503 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_TRUEHD;
504 ✗ break;
505 ✗ case AV_CODEC_ID_EAC3:
506 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_EAC3;
507 ✗ break;
508 ✗ case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
509 ✗ stream_type = STREAM_TYPE_BLURAY_SUBTITLE_PGS;
510 ✗ break;
511 ✗ case AV_CODEC_ID_HDMV_TEXT_SUBTITLE:
512 ✗ stream_type = STREAM_TYPE_BLURAY_SUBTITLE_TEXT;
513 ✗ break;
514 ✗ default:
515 ✗ av_log_once(s, AV_LOG_WARNING, AV_LOG_DEBUG, &ts_st->data_st_warning,
516 "Stream %d, codec %s, is muxed as a private data stream "
517 "and may not be recognized upon reading.\n", st->index,
518 ✗ avcodec_get_name(st->codecpar->codec_id));
519 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
520 ✗ break;
521 }
522
523 30 return stream_type;
524 }
525
526 608 static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
527 {
528 608 MpegTSWrite *ts = s->priv_data;
529 uint8_t data[SECTION_LENGTH], *q, *desc_length_ptr, *program_info_length_ptr;
530 608 int val, stream_type, i, err = 0;
531
532 608 q = data;
533 608 put16(&q, 0xe000 | service->pcr_pid);
534
535 608 program_info_length_ptr = q;
536 608 q += 2; /* patched after */
537
538 /* put program info here */
539
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 608 if (ts->m2ts_mode) {
540 30 put_registration_descriptor(&q, MKTAG('H', 'D', 'M', 'V'));
541 30 *q++ = 0x88; // descriptor_tag - hdmv_copy_control_descriptor
542 30 *q++ = 0x04; // descriptor_length
543 30 put16(&q, 0x0fff); // CA_System_ID
544 30 *q++ = 0xfc; // private_data_byte
545 30 *q++ = 0xfc; // private_data_byte
546 }
547
548 608 val = 0xf000 | (q - program_info_length_ptr - 2);
549 608 program_info_length_ptr[0] = val >> 8;
550 608 program_info_length_ptr[1] = val;
551
552
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 1236 for (i = 0; i < s->nb_streams; i++) {
553 628 AVStream *st = s->streams[i];
554 628 MpegTSWriteStream *ts_st = st->priv_data;
555 628 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
556 628 const char default_language[] = "und";
557
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 628 const char *language = lang && strlen(lang->value) >= 3 ? lang->value : default_language;
558 628 enum AVCodecID codec_id = st->codecpar->codec_id;
559
560
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 628 if (s->nb_programs) {
561 ✗ int k, found = 0;
562 ✗ AVProgram *program = service->program;
563
564 ✗ for (k = 0; k < program->nb_stream_indexes; k++)
565 ✗ if (program->stream_index[k] == i) {
566 ✗ found = 1;
567 ✗ break;
568 }
569
570 ✗ if (!found)
571 ✗ continue;
572 }
573
574
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 628 if (q - data > SECTION_LENGTH - 32) {
575 ✗ err = 1;
576 ✗ break;
577 }
578
579
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 628 stream_type = ts->m2ts_mode ? get_m2ts_stream_type(s, st) : get_dvb_stream_type(s, st);
580
581 628 *q++ = stream_type;
582 628 put16(&q, 0xe000 | ts_st->pid);
583 628 desc_length_ptr = q;
584 628 q += 2; /* patched after */
585
586 /* write optional descriptors here */
587
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 628 switch (st->codecpar->codec_type) {
588 529 case AVMEDIA_TYPE_AUDIO:
589
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 529 if (codec_id == AV_CODEC_ID_AC3)
590 ✗ put_registration_descriptor(&q, MKTAG('A', 'C', '-', '3'));
591
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 529 if (codec_id == AV_CODEC_ID_EAC3)
592 ✗ put_registration_descriptor(&q, MKTAG('E', 'A', 'C', '3'));
593
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 529 if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
594 ✗ if (codec_id == AV_CODEC_ID_AC3) {
595 ✗ DVBAC3Descriptor *dvb_ac3_desc = ts_st->dvb_ac3_desc;
596
597 ✗ *q++= AC3_DESCRIPTOR; // AC3 descriptor see A038 DVB SI
598 ✗ if (dvb_ac3_desc) {
599 ✗ int len = 1 +
600 ✗ !!(dvb_ac3_desc->component_type_flag) +
601 ✗ !!(dvb_ac3_desc->bsid_flag) +
602 ✗ !!(dvb_ac3_desc->mainid_flag) +
603 ✗ !!(dvb_ac3_desc->asvc_flag);
604
605 ✗ *q++ = len;
606 ✗ *q++ = dvb_ac3_desc->component_type_flag << 7 | dvb_ac3_desc->bsid_flag << 6 |
607 ✗ dvb_ac3_desc->mainid_flag << 5 | dvb_ac3_desc->asvc_flag << 4;
608
609 ✗ if (dvb_ac3_desc->component_type_flag) *q++ = dvb_ac3_desc->component_type;
610 ✗ if (dvb_ac3_desc->bsid_flag) *q++ = dvb_ac3_desc->bsid;
611 ✗ if (dvb_ac3_desc->mainid_flag) *q++ = dvb_ac3_desc->mainid;
612 ✗ if (dvb_ac3_desc->asvc_flag) *q++ = dvb_ac3_desc->asvc;
613 } else {
614 ✗ *q++=1; // 1 byte, all flags sets to 0
615 ✗ *q++=0; // omit all fields...
616 }
617 ✗ } else if (codec_id == AV_CODEC_ID_EAC3) {
618 ✗ *q++= ENHANCED_AC3_DESCRIPTOR; // EAC3 descriptor see A038 DVB SI
619 ✗ *q++=1; // 1 byte, all flags sets to 0
620 ✗ *q++=0; // omit all fields...
621 }
622 }
623
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 529 if (codec_id == AV_CODEC_ID_S302M)
624 33 put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
625
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 529 if (codec_id == AV_CODEC_ID_OPUS) {
626 ✗ int ch = st->codecpar->ch_layout.nb_channels;
627
628 /* 6 bytes registration descriptor, 4 bytes Opus audio descriptor */
629 ✗ if (q - data > SECTION_LENGTH - 6 - 4) {
630 ✗ err = 1;
631 ✗ break;
632 }
633
634 ✗ put_registration_descriptor(&q, MKTAG('O', 'p', 'u', 's'));
635
636 ✗ *q++ = DVB_EXTENSION_DESCRIPTOR;
637 ✗ *q++ = 2;
638 ✗ *q++ = 0x80;
639
640 ✗ if (st->codecpar->extradata && st->codecpar->extradata_size >= 19) {
641 ✗ if (st->codecpar->extradata[18] == 0 && ch <= 2) {
642 /* RTP mapping family */
643 ✗ *q++ = ch;
644 ✗ } else if (st->codecpar->extradata[18] == 1 && ch <= 8 &&
645 ✗ st->codecpar->extradata_size >= 21 + ch) {
646 static const uint8_t coupled_stream_counts[9] = {
647 1, 0, 1, 1, 2, 2, 2, 3, 3
648 };
649 static const uint8_t channel_map_a[8][8] = {
650 {0},
651 {0, 1},
652 {0, 2, 1},
653 {0, 1, 2, 3},
654 {0, 4, 1, 2, 3},
655 {0, 4, 1, 2, 3, 5},
656 {0, 4, 1, 2, 3, 5, 6},
657 {0, 6, 1, 2, 3, 4, 5, 7},
658 };
659 static const uint8_t channel_map_b[8][8] = {
660 {0},
661 {0, 1},
662 {0, 1, 2},
663 {0, 1, 2, 3},
664 {0, 1, 2, 3, 4},
665 {0, 1, 2, 3, 4, 5},
666 {0, 1, 2, 3, 4, 5, 6},
667 {0, 1, 2, 3, 4, 5, 6, 7},
668 };
669 /* Vorbis mapping family */
670
671 ✗ if (st->codecpar->extradata[19] == ch - coupled_stream_counts[ch] &&
672 ✗ st->codecpar->extradata[20] == coupled_stream_counts[ch] &&
673 ✗ memcmp(&st->codecpar->extradata[21], channel_map_a[ch - 1], ch) == 0) {
674 ✗ *q++ = ch;
675 ✗ } else if (ch >= 2 && st->codecpar->extradata[19] == ch &&
676 ✗ st->codecpar->extradata[20] == 0 &&
677 ✗ memcmp(&st->codecpar->extradata[21], channel_map_b[ch - 1], ch) == 0) {
678 ✗ *q++ = ch | 0x80;
679 } else {
680 /* Unsupported, could write an extended descriptor here */
681 ✗ av_log(s, AV_LOG_ERROR, "Unsupported Opus Vorbis-style channel mapping");
682 ✗ *q++ = 0xff;
683 }
684 } else {
685 /* Unsupported */
686 ✗ av_log(s, AV_LOG_ERROR, "Unsupported Opus channel mapping for family %d", st->codecpar->extradata[18]);
687 ✗ *q++ = 0xff;
688 }
689 ✗ } else if (ch <= 2) {
690 /* Assume RTP mapping family */
691 ✗ *q++ = ch;
692 } else {
693 /* Unsupported */
694 ✗ av_log(s, AV_LOG_ERROR, "Unsupported Opus channel mapping");
695 ✗ *q++ = 0xff;
696 }
697 }
698
699
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 529 if (language != default_language ||
700
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 529 st->disposition & (AV_DISPOSITION_CLEAN_EFFECTS |
701 AV_DISPOSITION_HEARING_IMPAIRED |
702 AV_DISPOSITION_VISUAL_IMPAIRED)) {
703 const char *p, *next;
704 uint8_t *len_ptr;
705
706 ✗ *q++ = ISO_639_LANGUAGE_DESCRIPTOR;
707 ✗ len_ptr = q++;
708 ✗ *len_ptr = 0;
709
710 ✗ for (p = next = language; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
711 ✗ if (q - data > SECTION_LENGTH - 4) {
712 ✗ err = 1;
713 ✗ break;
714 }
715 ✗ next = strchr(p, ',');
716 ✗ if (strlen(p) != 3 && (!next || next != p + 3))
717 ✗ continue; /* not a 3-letter code */
718
719 ✗ *q++ = *p++;
720 ✗ *q++ = *p++;
721 ✗ *q++ = *p++;
722
723 ✗ if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
724 ✗ *q++ = 0x01;
725 ✗ else if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
726 ✗ *q++ = 0x02;
727 ✗ else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
728 ✗ *q++ = 0x03;
729 else
730 ✗ *q++ = 0; /* undefined type */
731
732 ✗ *len_ptr += 4;
733 }
734
735 ✗ if (*len_ptr == 0)
736 ✗ q -= 2; /* no language codes were written */
737 }
738 529 break;
739 ✗ case AVMEDIA_TYPE_SUBTITLE:
740 ✗ if (codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
741 uint8_t *len_ptr;
742 ✗ int extradata_copied = 0;
743
744 ✗ *q++ = SUBTITLING_DESCRIPTOR; /* subtitling_descriptor */
745 ✗ len_ptr = q++;
746
747 ✗ while (strlen(language) >= 3) {
748 ✗ if (sizeof(data) - (q - data) < 8) { /* 8 bytes per DVB subtitle substream data */
749 ✗ err = 1;
750 ✗ break;
751 }
752 ✗ *q++ = *language++;
753 ✗ *q++ = *language++;
754 ✗ *q++ = *language++;
755 /* Skip comma */
756 ✗ if (*language != '\0')
757 ✗ language++;
758
759 ✗ if (st->codecpar->extradata_size - extradata_copied >= 5) {
760 ✗ *q++ = st->codecpar->extradata[extradata_copied + 4]; /* subtitling_type */
761 ✗ memcpy(q, st->codecpar->extradata + extradata_copied, 4); /* composition_page_id and ancillary_page_id */
762 ✗ extradata_copied += 5;
763 ✗ q += 4;
764 } else {
765 /* subtitling_type:
766 * 0x10 - normal with no monitor aspect ratio criticality
767 * 0x20 - for the hard of hearing with no monitor aspect ratio criticality */
768 ✗ *q++ = (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED) ? 0x20 : 0x10;
769 ✗ if ((st->codecpar->extradata_size == 4) && (extradata_copied == 0)) {
770 /* support of old 4-byte extradata format */
771 ✗ memcpy(q, st->codecpar->extradata, 4); /* composition_page_id and ancillary_page_id */
772 ✗ extradata_copied += 4;
773 ✗ q += 4;
774 } else {
775 ✗ put16(&q, 1); /* composition_page_id */
776 ✗ put16(&q, 1); /* ancillary_page_id */
777 }
778 }
779 }
780
781 ✗ *len_ptr = q - len_ptr - 1;
782 ✗ } else if (codec_id == AV_CODEC_ID_DVB_TELETEXT) {
783 ✗ uint8_t *len_ptr = NULL;
784 ✗ int extradata_copied = 0;
785
786 /* The descriptor tag. teletext_descriptor */
787 ✗ *q++ = TELETEXT_DESCRIPTOR;
788 ✗ len_ptr = q++;
789
790 ✗ while (strlen(language) >= 3 && q - data < sizeof(data) - 6) {
791 ✗ *q++ = *language++;
792 ✗ *q++ = *language++;
793 ✗ *q++ = *language++;
794 /* Skip comma */
795 ✗ if (*language != '\0')
796 ✗ language++;
797
798 ✗ if (st->codecpar->extradata_size - 1 > extradata_copied) {
799 ✗ memcpy(q, st->codecpar->extradata + extradata_copied, 2);
800 ✗ extradata_copied += 2;
801 ✗ q += 2;
802 } else {
803 /* The Teletext descriptor:
804 * teletext_type: This 5-bit field indicates the type of Teletext page indicated. (0x01 Initial Teletext page)
805 * teletext_magazine_number: This is a 3-bit field which identifies the magazine number.
806 * teletext_page_number: This is an 8-bit field giving two 4-bit hex digits identifying the page number. */
807 ✗ *q++ = 0x08;
808 ✗ *q++ = 0x00;
809 }
810 }
811
812 ✗ *len_ptr = q - len_ptr - 1;
813 ✗ } else if (codec_id == AV_CODEC_ID_ARIB_CAPTION) {
814 ✗ if (put_arib_caption_descriptor(s, &q, st->codecpar) < 0)
815 ✗ break;
816 }
817 ✗ break;
818 99 case AVMEDIA_TYPE_VIDEO:
819
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 99 if (stream_type == STREAM_TYPE_VIDEO_DIRAC) {
820 ✗ put_registration_descriptor(&q, MKTAG('d', 'r', 'a', 'c'));
821
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 99 } else if (stream_type == STREAM_TYPE_VIDEO_VC1) {
822 ✗ put_registration_descriptor(&q, MKTAG('V', 'C', '-', '1'));
823
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 99 } else if (stream_type == STREAM_TYPE_VIDEO_HEVC && s->strict_std_compliance <= FF_COMPLIANCE_NORMAL) {
824 ✗ put_registration_descriptor(&q, MKTAG('H', 'E', 'V', 'C'));
825
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 99 } else if (stream_type == STREAM_TYPE_VIDEO_CAVS || stream_type == STREAM_TYPE_VIDEO_AVS2 ||
826 stream_type == STREAM_TYPE_VIDEO_AVS3) {
827 ✗ put_registration_descriptor(&q, MKTAG('A', 'V', 'S', 'V'));
828
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 99 } else if (ts_st->nb_stream_groups) {
829
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 22 if (stream_type == STREAM_TYPE_VIDEO_LCEVC) {
830 11 LCEVCDecoderConfigurationRecord lvcc = { 0 };
831 11 ff_lcvec_parse_config_record(&lvcc, st->codecpar->extradata,
832 11 st->codecpar->extradata_size, s);
833 11 *q++ = EXTENSION_DESCRIPTOR;
834 11 *q++ = 5;
835 11 *q++ = LCEVC_VIDEO_DESCRIPTOR;
836 11 *q++ = st->id;
837 11 *q++ = (lvcc.profile_idc << 4) | lvcc.level_idc;
838 11 *q++ = (lvcc.sublevel_idc << 6) |
839 11 (lvcc.processed_planes_type_flag << 5) |
840 11 (lvcc.picture_type_bit_flag << 4) |
841 11 (lvcc.field_type_bit_flag << 3);
842 11 *q++ = 0xC0; // HDR_WCG_idc == 3, video_properties_tag == 0
843 } else {
844 11 *q++ = EXTENSION_DESCRIPTOR;
845 11 *q++ = 2 + ts_st->nb_stream_groups;
846 11 *q++ = LCEVC_LINKAGE_DESCRIPTOR;
847 11 *q++ = ts_st->nb_stream_groups;
848
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 22 for (int j = 0; j < ts_st->nb_stream_groups; j++) {
849 11 AVStreamGroup *stg = ts_st->stream_groups[j];
850 11 *q++ = stg->entries[stg->params.layered_video->el_index]->stream->id;
851 }
852 }
853 }
854 99 break;
855 ✗ case AVMEDIA_TYPE_DATA:
856 ✗ if (codec_id == AV_CODEC_ID_SMPTE_KLV) {
857 ✗ put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A'));
858 ✗ } else if (codec_id == AV_CODEC_ID_SMPTE_2038) {
859 ✗ put_registration_descriptor(&q, MKTAG('V', 'A', 'N', 'C'));
860 ✗ } else if (codec_id == AV_CODEC_ID_TIMED_ID3) {
861 ✗ const char *tag = "ID3 ";
862 ✗ *q++ = METADATA_DESCRIPTOR;
863 ✗ *q++ = 13;
864 ✗ put16(&q, 0xffff); /* metadata application format */
865 ✗ putbuf(&q, tag, strlen(tag));
866 ✗ *q++ = 0xff; /* metadata format */
867 ✗ putbuf(&q, tag, strlen(tag));
868 ✗ *q++ = 0; /* metadata service ID */
869 ✗ *q++ = 0xF; /* metadata_locator_record_flag|MPEG_carriage_flags|reserved */
870 }
871 ✗ break;
872 }
873
874 628 val = 0xf000 | (q - desc_length_ptr - 2);
875 628 desc_length_ptr[0] = val >> 8;
876 628 desc_length_ptr[1] = val;
877 }
878
879
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 608 if (err)
880 ✗ av_log(s, AV_LOG_ERROR,
881 "The PMT section cannot fit stream %d and all following streams.\n"
882 "Try reducing the number of languages in the audio streams "
883 "or the total number of streams.\n", i);
884
885 608 mpegts_write_section1(&service->pmt, PMT_TID, service->sid, ts->tables_version, 0, 0,
886 608 data, q - data);
887 608 return 0;
888 }
889
890 209 static void mpegts_write_sdt(AVFormatContext *s)
891 {
892 209 MpegTSWrite *ts = s->priv_data;
893 MpegTSService *service;
894 uint8_t data[SECTION_LENGTH], *q, *desc_list_len_ptr, *desc_len_ptr;
895 int i, running_status, free_ca_mode, val;
896
897 209 q = data;
898 209 put16(&q, ts->original_network_id);
899 209 *q++ = 0xff;
900
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 418 for (i = 0; i < ts->nb_services; i++) {
901 209 service = ts->services[i];
902 209 put16(&q, service->sid);
903 209 *q++ = 0xfc | 0x00; /* currently no EIT info */
904 209 desc_list_len_ptr = q;
905 209 q += 2;
906 209 running_status = 4; /* running */
907 209 free_ca_mode = 0;
908
909 /* write only one descriptor for the service name and provider */
910 209 *q++ = SERVICE_DESCRIPTOR;
911 209 desc_len_ptr = q;
912 209 q++;
913 209 *q++ = ts->service_type;
914 209 putbuf(&q, service->provider_name, service->provider_name[0] + 1);
915 209 putbuf(&q, service->name, service->name[0] + 1);
916 209 desc_len_ptr[0] = q - desc_len_ptr - 1;
917
918 /* fill descriptor length */
919 209 val = (running_status << 13) | (free_ca_mode << 12) |
920 209 (q - desc_list_len_ptr - 2);
921 209 desc_list_len_ptr[0] = val >> 8;
922 209 desc_list_len_ptr[1] = val;
923 }
924 209 mpegts_write_section1(&ts->sdt, SDT_TID, ts->transport_stream_id, ts->tables_version, 0, 0,
925 209 data, q - data);
926 209 }
927
928 ✗ static void mpegts_write_nit(AVFormatContext *s)
929 {
930 ✗ MpegTSWrite *ts = s->priv_data;
931 uint8_t data[SECTION_LENGTH], *q, *desc_len_ptr, *loop_len_ptr;
932
933 ✗ q = data;
934
935 //network_descriptors_length
936 ✗ put16(&q, 0xf000 | (ts->provider_name[0] + 2));
937
938 //network_name_descriptor
939 ✗ *q++ = NETWORK_NAME_DESCRIPTOR;
940 ✗ putbuf(&q, ts->provider_name, ts->provider_name[0] + 1);
941
942 //transport_stream_loop_length
943 ✗ loop_len_ptr = q;
944 ✗ q += 2;
945
946 ✗ put16(&q, ts->transport_stream_id);
947 ✗ put16(&q, ts->original_network_id);
948
949 //transport_descriptors_length
950 ✗ desc_len_ptr = q;
951 ✗ q += 2;
952
953 //service_list_descriptor
954 ✗ *q++ = SERVICE_LIST_DESCRIPTOR;
955 ✗ *q++ = 3 * ts->nb_services;
956 ✗ for (int i = 0; i < ts->nb_services; i++) {
957 ✗ put16(&q, ts->services[i]->sid);
958 ✗ *q++ = ts->service_type;
959 }
960
961 //calculate lengths
962 ✗ put16(&desc_len_ptr, 0xf000 | q - (desc_len_ptr + 2));
963 ✗ put16(&loop_len_ptr, 0xf000 | q - (loop_len_ptr + 2));
964
965 ✗ mpegts_write_section1(&ts->nit, NIT_TID, ts->original_network_id, ts->tables_version, 0, 0,
966 ✗ data, q - data);
967 ✗ }
968
969 /* This stores a string in buf with the correct encoding and also sets the
970 * first byte as the length. !str is accepted for an empty string.
971 * If the string is already encoded, invalid UTF-8 or has no multibyte sequence
972 * then we keep it as is, otherwise we signal UTF-8 encoding. */
973 120 static int encode_str8(uint8_t *buf, const char *str)
974 {
975 size_t str_len;
976
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 120 if (!str)
977 ✗ str = "";
978 120 str_len = strlen(str);
979
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 120 if (str[0] && (unsigned)str[0] >= 0x20) { /* Make sure the string is not already encoded. */
980 120 const uint8_t *q = str;
981 120 int has_multibyte = 0;
982
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 958 while (*q) {
983 uint32_t code;
984
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 838 GET_UTF8(code, *q++, goto invalid;) /* Is it valid UTF-8? */
985 838 has_multibyte |= (code > 127); /* Does it have multibyte UTF-8 chars in it? */
986 }
987
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 120 if (has_multibyte) { /* If we have multibyte chars and valid UTF-8, then encode as such! */
988 ✗ if (str_len > 254)
989 ✗ return AVERROR(EINVAL);
990 ✗ buf[0] = str_len + 1;
991 ✗ buf[1] = 0x15;
992 ✗ memcpy(&buf[2], str, str_len);
993 ✗ return 0;
994 }
995 }
996 120 invalid:
997 /* Otherwise let's just encode the string as is! */
998
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 120 if (str_len > 255)
999 ✗ return AVERROR(EINVAL);
1000 120 buf[0] = str_len;
1001 120 memcpy(&buf[1], str, str_len);
1002 120 return 0;
1003 }
1004
1005 10624 static int64_t get_pcr(const MpegTSWrite *ts)
1006 {
1007 21248 return av_rescale(ts->total_size + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
1008 10624 ts->first_pcr;
1009 }
1010
1011 87123 static void write_packet(AVFormatContext *s, const uint8_t *packet)
1012 {
1013 87123 MpegTSWrite *ts = s->priv_data;
1014
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 87123 if (ts->m2ts_mode) {
1015 10624 int64_t pcr = get_pcr(s->priv_data);
1016 10624 uint32_t tp_extra_header = pcr % 0x3fffffff;
1017 10624 tp_extra_header = AV_RB32(&tp_extra_header);
1018 10624 avio_write(s->pb, (unsigned char *) &tp_extra_header,
1019 sizeof(tp_extra_header));
1020 }
1021 87123 avio_write(s->pb, packet, TS_PACKET_SIZE);
1022 87123 ts->total_size += TS_PACKET_SIZE;
1023 87123 }
1024
1025 1425 static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
1026 {
1027 1425 AVFormatContext *ctx = s->opaque;
1028 1425 write_packet(ctx, packet);
1029 1425 }
1030
1031 40 static MpegTSService *mpegts_add_service(AVFormatContext *s, int sid,
1032 const AVDictionary *metadata,
1033 AVProgram *program)
1034 {
1035 40 MpegTSWrite *ts = s->priv_data;
1036 MpegTSService *service;
1037 AVDictionaryEntry *title, *provider;
1038 char default_service_name[32];
1039 const char *service_name;
1040 const char *provider_name;
1041
1042 40 title = av_dict_get(metadata, "service_name", NULL, 0);
1043
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 40 if (!title)
1044 40 title = av_dict_get(metadata, "title", NULL, 0);
1045 40 snprintf(default_service_name, sizeof(default_service_name), "%s%02d", DEFAULT_SERVICE_NAME, ts->nb_services + 1);
1046
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 40 service_name = title ? title->value : default_service_name;
1047 40 provider = av_dict_get(metadata, "service_provider", NULL, 0);
1048
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 40 provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
1049
1050 40 service = av_mallocz(sizeof(MpegTSService));
1051
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 40 if (!service)
1052 ✗ return NULL;
1053 40 service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
1054 40 service->sid = sid;
1055 40 service->pcr_pid = 0x1fff;
1056
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 80 if (encode_str8(service->provider_name, provider_name) < 0 ||
1057 40 encode_str8(service->name, service_name) < 0) {
1058 ✗ av_log(s, AV_LOG_ERROR, "Too long service or provider name\n");
1059 ✗ goto fail;
1060 }
1061 40 ts->sdt.remaining -= 10 + service->provider_name[0] + service->name[0];
1062
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 40 if (ts->sdt.remaining < 0)
1063 ✗ goto fail;
1064
1065
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 40 if (av_dynarray_add_nofree(&ts->services, &ts->nb_services, service) < 0)
1066 ✗ goto fail;
1067
1068 40 service->pmt.write_packet = section_write_packet;
1069 40 service->pmt.opaque = s;
1070 40 service->pmt.cc = 15;
1071 40 service->pmt.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1072 40 service->program = program;
1073
1074 40 return service;
1075 ✗ fail:
1076 ✗ av_free(service);
1077 ✗ return NULL;
1078 }
1079
1080 40 static void enable_pcr_generation_for_stream(AVFormatContext *s, AVStream *pcr_st)
1081 {
1082 40 MpegTSWrite *ts = s->priv_data;
1083 40 MpegTSWriteStream *ts_st = pcr_st->priv_data;
1084
1085
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 40 if (ts->mux_rate > 1 || ts->pcr_period_ms >= 0) {
1086 ✗ int pcr_period_ms = ts->pcr_period_ms == -1 ? PCR_RETRANS_TIME : ts->pcr_period_ms;
1087 ✗ ts_st->pcr_period = av_rescale(pcr_period_ms, PCR_TIME_BASE, 1000);
1088 } else {
1089 /* By default, for VBR we select the highest multiple of frame duration which is less than 100 ms. */
1090 40 int64_t frame_period = 0;
1091
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 40 if (pcr_st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1092 25 int frame_size = av_get_audio_frame_duration2(pcr_st->codecpar, 0);
1093
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 25 if (!frame_size) {
1094 7 av_log(s, AV_LOG_WARNING, "frame size not set\n");
1095 7 frame_size = 512;
1096 }
1097 25 frame_period = av_rescale_rnd(frame_size, PCR_TIME_BASE, pcr_st->codecpar->sample_rate, AV_ROUND_UP);
1098
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 15 } else if (pcr_st->avg_frame_rate.num) {
1099 7 frame_period = av_rescale_rnd(pcr_st->avg_frame_rate.den, PCR_TIME_BASE, pcr_st->avg_frame_rate.num, AV_ROUND_UP);
1100 }
1101
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 40 if (frame_period > 0 && frame_period <= PCR_TIME_BASE / 10)
1102 32 ts_st->pcr_period = frame_period * (PCR_TIME_BASE / 10 / frame_period);
1103 else
1104 8 ts_st->pcr_period = 1;
1105 }
1106
1107 // output a PCR as soon as possible
1108 40 ts_st->last_pcr = ts->first_pcr - ts_st->pcr_period;
1109 40 }
1110
1111 40 static void select_pcr_streams(AVFormatContext *s)
1112 {
1113 40 MpegTSWrite *ts = s->priv_data;
1114
1115
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 80 for (int i = 0; i < ts->nb_services; i++) {
1116 40 MpegTSService *service = ts->services[i];
1117 40 AVStream *pcr_st = NULL;
1118 40 AVProgram *program = service->program;
1119
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 40 int nb_streams = program ? program->nb_stream_indexes : s->nb_streams;
1120
1121
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 82 for (int j = 0; j < nb_streams; j++) {
1122
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 42 AVStream *st = s->streams[program ? program->stream_index[j] : j];
1123
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 42 if (!pcr_st ||
1124
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 2 pcr_st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1125 {
1126 40 pcr_st = st;
1127 }
1128 }
1129
1130
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 40 if (ts->pcr_pid >= FIRST_OTHER_PID) {
1131 ✗ int pcr_period_ms = ts->pcr_period_ms == -1 ? PCR_RETRANS_TIME : ts->pcr_period_ms;
1132 ✗ service->pcr_pid = ts->pcr_pid;
1133 ✗ ts->pcr_stream_pcr_period = av_rescale(pcr_period_ms, PCR_TIME_BASE, 1000);
1134 ✗ ts->pcr_stream_last_pcr = ts->first_pcr - ts->pcr_stream_pcr_period;
1135 ✗ av_log(s, AV_LOG_VERBOSE, "service %i using separate PCR pid=%d, pcr_period=%"PRId64"ms\n",
1136 service->sid, ts->pcr_pid, (int64_t)pcr_period_ms);
1137
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 40 } else if (pcr_st) {
1138 40 MpegTSWriteStream *ts_st = pcr_st->priv_data;
1139 40 service->pcr_pid = ts_st->pid;
1140 40 enable_pcr_generation_for_stream(s, pcr_st);
1141 40 av_log(s, AV_LOG_VERBOSE, "service %i using PCR in pid=%i, pcr_period=%"PRId64"ms\n",
1142 service->sid, service->pcr_pid, av_rescale(ts_st->pcr_period, 1000, PCR_TIME_BASE));
1143 }
1144 }
1145 40 }
1146
1147 40 static int mpegts_init(AVFormatContext *s)
1148 {
1149 40 MpegTSWrite *ts = s->priv_data;
1150 AVDictionaryEntry *provider;
1151 const char *provider_name;
1152 int i, j;
1153 int ret;
1154
1155
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 40 if (ts->m2ts_mode == -1) {
1156
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 34 if (av_match_ext(s->url, "m2ts")) {
1157 ✗ ts->m2ts_mode = 1;
1158 } else {
1159 34 ts->m2ts_mode = 0;
1160 }
1161 }
1162
1163 40 ts->m2ts_video_pid = M2TS_VIDEO_PID;
1164 40 ts->m2ts_audio_pid = M2TS_AUDIO_START_PID;
1165 40 ts->m2ts_pgssub_pid = M2TS_PGSSUB_START_PID;
1166 40 ts->m2ts_textsub_pid = M2TS_TEXTSUB_PID;
1167
1168
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 40 if (ts->m2ts_mode) {
1169 6 ts->pmt_start_pid = M2TS_PMT_PID;
1170
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 6 if (s->nb_programs > 1) {
1171 ✗ av_log(s, AV_LOG_ERROR, "Only one program is allowed in m2ts mode!\n");
1172 ✗ return AVERROR(EINVAL);
1173 }
1174 }
1175
1176
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 40 if (s->max_delay < 0) /* Not set by the caller */
1177 ✗ s->max_delay = 0;
1178
1179
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 40 if (ts->pcr_pid != -1 && ts->pcr_pid < FIRST_OTHER_PID) {
1180 ✗ av_log(s, AV_LOG_ERROR, "Invalid PCR PID %d, must be in range [%d, %d]\n",
1181 ts->pcr_pid, FIRST_OTHER_PID, LAST_OTHER_PID);
1182 ✗ return AVERROR(EINVAL);
1183 }
1184
1185 // round up to a whole number of TS packets
1186 40 ts->pes_payload_size = (ts->pes_payload_size + 14 + 183) / 184 * 184 - 14;
1187
1188 40 ts->sdt.remaining = SECTION_LENGTH - 3;
1189
1190
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 40 if (!s->nb_programs) {
1191 /* allocate a single DVB service */
1192
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 40 if (!mpegts_add_service(s, ts->service_id, s->metadata, NULL))
1193 ✗ return AVERROR(ENOMEM);
1194 } else {
1195 ✗ for (i = 0; i < s->nb_programs; i++) {
1196 ✗ AVProgram *program = s->programs[i];
1197 ✗ if (!mpegts_add_service(s, program->id, program->metadata, program))
1198 ✗ return AVERROR(ENOMEM);
1199 }
1200 }
1201
1202 40 ts->pat.pid = PAT_PID;
1203 /* Initialize at 15 so that it wraps and is equal to 0 for the
1204 * first packet we write. */
1205 40 ts->pat.cc = 15;
1206 40 ts->pat.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1207 40 ts->pat.write_packet = section_write_packet;
1208 40 ts->pat.opaque = s;
1209
1210 40 ts->sdt.pid = SDT_PID;
1211 40 ts->sdt.cc = 15;
1212 40 ts->sdt.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1213 40 ts->sdt.write_packet = section_write_packet;
1214 40 ts->sdt.opaque = s;
1215
1216 40 ts->nit.pid = NIT_PID;
1217 40 ts->nit.cc = 15;
1218 40 ts->nit.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1219 40 ts->nit.write_packet = section_write_packet;
1220 40 ts->nit.opaque = s;
1221
1222 40 ts->pkt = ffformatcontext(s)->pkt;
1223
1224 /* assign pids to each stream */
1225
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 82 for (i = 0; i < s->nb_streams; i++) {
1226 42 AVStream *st = s->streams[i];
1227 MpegTSWriteStream *ts_st;
1228
1229 42 ts_st = av_mallocz(sizeof(MpegTSWriteStream));
1230
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 42 if (!ts_st) {
1231 ✗ return AVERROR(ENOMEM);
1232 }
1233 42 st->priv_data = ts_st;
1234
1235 42 avpriv_set_pts_info(st, 33, 1, 90000);
1236
1237 42 ts_st->payload = av_mallocz(ts->pes_payload_size);
1238
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 42 if (!ts_st->payload) {
1239 ✗ return AVERROR(ENOMEM);
1240 }
1241
1242 /* MPEG pid values < 16 are reserved. Applications which set st->id in
1243 * this range are assigned a calculated pid. */
1244
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 42 if (st->id < 16) {
1245
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 42 if (ts->m2ts_mode) {
1246
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 6 switch (st->codecpar->codec_type) {
1247 ✗ case AVMEDIA_TYPE_VIDEO:
1248 ✗ ts_st->pid = ts->m2ts_video_pid++;
1249 ✗ break;
1250 6 case AVMEDIA_TYPE_AUDIO:
1251 6 ts_st->pid = ts->m2ts_audio_pid++;
1252 6 break;
1253 ✗ case AVMEDIA_TYPE_SUBTITLE:
1254 ✗ switch (st->codecpar->codec_id) {
1255 ✗ case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
1256 ✗ ts_st->pid = ts->m2ts_pgssub_pid++;
1257 ✗ break;
1258 ✗ case AV_CODEC_ID_HDMV_TEXT_SUBTITLE:
1259 ✗ ts_st->pid = ts->m2ts_textsub_pid++;
1260 ✗ break;
1261 }
1262 ✗ break;
1263 }
1264
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 6 if (ts->m2ts_video_pid > M2TS_VIDEO_PID + 1 ||
1265
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 6 ts->m2ts_audio_pid > M2TS_AUDIO_START_PID + 32 ||
1266
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 6 ts->m2ts_pgssub_pid > M2TS_PGSSUB_START_PID + 32 ||
1267
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 6 ts->m2ts_textsub_pid > M2TS_TEXTSUB_PID + 1 ||
1268
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 6 ts_st->pid < 16) {
1269 ✗ av_log(s, AV_LOG_ERROR, "Cannot automatically assign PID for stream %d\n", st->index);
1270 ✗ return AVERROR(EINVAL);
1271 }
1272 } else {
1273 36 ts_st->pid = ts->start_pid + i;
1274 }
1275 } else {
1276 ✗ ts_st->pid = st->id;
1277 }
1278
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 42 if (ts_st->pid >= 0x1FFF) {
1279 ✗ av_log(s, AV_LOG_ERROR,
1280 "Invalid stream id %d, must be less than 8191\n", st->id);
1281 ✗ return AVERROR(EINVAL);
1282 }
1283
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 84 for (j = 0; j < ts->nb_services; j++) {
1284
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 42 if (ts->services[j]->pmt.pid > LAST_OTHER_PID) {
1285 ✗ av_log(s, AV_LOG_ERROR,
1286 ✗ "Invalid PMT PID %d, must be less than %d\n", ts->services[j]->pmt.pid, LAST_OTHER_PID + 1);
1287 ✗ return AVERROR(EINVAL);
1288 }
1289
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 42 if (ts_st->pid == ts->services[j]->pmt.pid) {
1290 ✗ av_log(s, AV_LOG_ERROR, "PID %d cannot be both elementary and PMT PID\n", ts_st->pid);
1291 ✗ return AVERROR(EINVAL);
1292 }
1293 }
1294
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 44 for (j = 0; j < i; j++) {
1295 2 MpegTSWriteStream *ts_st_prev = s->streams[j]->priv_data;
1296
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 2 if (ts_st_prev->pid == ts_st->pid) {
1297 ✗ av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
1298 ✗ return AVERROR(EINVAL);
1299 }
1300 }
1301 42 ts_st->payload_pts = AV_NOPTS_VALUE;
1302 42 ts_st->payload_dts = AV_NOPTS_VALUE;
1303 42 ts_st->cc = 15;
1304 42 ts_st->discontinuity = ts->flags & MPEGTS_FLAG_DISCONT;
1305
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 42 if (st->codecpar->codec_id == AV_CODEC_ID_AAC &&
1306 ✗ st->codecpar->extradata_size > 0) {
1307 AVStream *ast;
1308 ✗ ts_st->amux = avformat_alloc_context();
1309 ✗ if (!ts_st->amux) {
1310 ✗ return AVERROR(ENOMEM);
1311 }
1312 ✗ ts_st->amux->oformat =
1313 ✗ av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts",
1314 NULL, NULL);
1315 ✗ if (!ts_st->amux->oformat) {
1316 ✗ return AVERROR(EINVAL);
1317 }
1318 ✗ if (!(ast = avformat_new_stream(ts_st->amux, NULL))) {
1319 ✗ return AVERROR(ENOMEM);
1320 }
1321 ✗ ret = avcodec_parameters_copy(ast->codecpar, st->codecpar);
1322 ✗ if (ret != 0)
1323 ✗ return ret;
1324 ✗ ast->time_base = st->time_base;
1325 ✗ ret = avformat_write_header(ts_st->amux, NULL);
1326 ✗ if (ret < 0)
1327 ✗ return ret;
1328 }
1329
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 42 if (st->codecpar->codec_id == AV_CODEC_ID_OPUS) {
1330 ✗ ts_st->opus_pending_trim_start = st->codecpar->initial_padding * 48000 / st->codecpar->sample_rate;
1331 }
1332 }
1333
1334
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 41 for (i = 0; i < s->nb_stream_groups; i++) {
1335 1 AVStreamGroup *stg = s->stream_groups[i];
1336
1337
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 1 if (stg->type != AV_STREAM_GROUP_PARAMS_LCEVC)
1338 ✗ continue;
1339
1340
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 1 if (stg->nb_entries != 2) {
1341 ✗ av_log(s, AV_LOG_ERROR, "LCEVC Stream Group #%"PRId64" needs exactly two streams\n", stg->id);
1342 ✗ return AVERROR(EINVAL);
1343 }
1344
1345
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 3 for (j = 0; j < stg->nb_entries; j++) {
1346 2 AVStreamGroupEntry *entry = stg->entries[j];
1347 AVStream *st;
1348 MpegTSWriteStream *ts_st;
1349
1350
1/2
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 2 if (entry->type != AV_STREAM_GROUP_ENTRY_STREAM) {
1351 ✗ av_log(s, AV_LOG_ERROR, "LCEVC Stream Group #%"PRId64" must only reference streams\n", stg->id);
1352 ✗ return AVERROR(EINVAL);
1353 }
1354 2 st = entry->stream;
1355 2 ts_st = st->priv_data;
1356
1357 2 av_dynarray_add((void *)&ts_st->stream_groups, &ts_st->nb_stream_groups, (void *)stg);
1358
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 2 if (!ts_st->nb_stream_groups)
1359 ✗ return AVERROR(ENOMEM);
1360 }
1361 }
1362
1363
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 40 if (ts->copyts < 1)
1364 40 ts->first_pcr = av_rescale(s->max_delay, PCR_TIME_BASE, AV_TIME_BASE);
1365
1366 40 select_pcr_streams(s);
1367
1368 40 ts->last_pat_ts = AV_NOPTS_VALUE;
1369 40 ts->last_sdt_ts = AV_NOPTS_VALUE;
1370 40 ts->last_nit_ts = AV_NOPTS_VALUE;
1371 40 ts->pat_period = av_rescale(ts->pat_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1372 40 ts->sdt_period = av_rescale(ts->sdt_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1373 40 ts->nit_period = av_rescale(ts->nit_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1374
1375 /* assign provider name */
1376 40 provider = av_dict_get(s->metadata, "service_provider", NULL, 0);
1377
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 40 provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
1378
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 40 if (encode_str8(ts->provider_name, provider_name) < 0) {
1379 ✗ av_log(s, AV_LOG_ERROR, "Too long provider name\n");
1380 ✗ return AVERROR(EINVAL);
1381 }
1382
1383
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 40 if (ts->mux_rate == 1)
1384 40 av_log(s, AV_LOG_VERBOSE, "muxrate VBR, ");
1385 else
1386 ✗ av_log(s, AV_LOG_VERBOSE, "muxrate %d, ", ts->mux_rate);
1387 40 av_log(s, AV_LOG_VERBOSE,
1388 "sdt every %"PRId64" ms, pat/pmt every %"PRId64" ms",
1389 av_rescale(ts->sdt_period, 1000, PCR_TIME_BASE),
1390 av_rescale(ts->pat_period, 1000, PCR_TIME_BASE));
1391
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 40 if (ts->flags & MPEGTS_FLAG_NIT)
1392 ✗ av_log(s, AV_LOG_VERBOSE, ", nit every %"PRId64" ms", av_rescale(ts->nit_period, 1000, PCR_TIME_BASE));
1393 40 av_log(s, AV_LOG_VERBOSE, "\n");
1394
1395 40 return 0;
1396 }
1397
1398 /* send SDT, NIT, PAT and PMT tables regularly */
1399 85544 static void retransmit_si_info(AVFormatContext *s, int force_pat, int force_sdt, int force_nit, int64_t pcr)
1400 {
1401 85544 MpegTSWrite *ts = s->priv_data;
1402 int i;
1403
1404
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 85544 if ((pcr != AV_NOPTS_VALUE && ts->last_sdt_ts == AV_NOPTS_VALUE) ||
1405
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 85504 (pcr != AV_NOPTS_VALUE && pcr - ts->last_sdt_ts >= ts->sdt_period) ||
1406 force_sdt
1407 ) {
1408
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 209 if (pcr != AV_NOPTS_VALUE)
1409 209 ts->last_sdt_ts = FFMAX(pcr, ts->last_sdt_ts);
1410 209 mpegts_write_sdt(s);
1411 }
1412
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 85544 if ((pcr != AV_NOPTS_VALUE && ts->last_pat_ts == AV_NOPTS_VALUE) ||
1413
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 85504 (pcr != AV_NOPTS_VALUE && pcr - ts->last_pat_ts >= ts->pat_period) ||
1414 force_pat) {
1415
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 608 if (pcr != AV_NOPTS_VALUE)
1416 608 ts->last_pat_ts = FFMAX(pcr, ts->last_pat_ts);
1417 608 mpegts_write_pat(s);
1418
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 1216 for (i = 0; i < ts->nb_services; i++)
1419 608 mpegts_write_pmt(s, ts->services[i]);
1420 }
1421
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 85544 if ((pcr != AV_NOPTS_VALUE && ts->last_nit_ts == AV_NOPTS_VALUE) ||
1422
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 85504 (pcr != AV_NOPTS_VALUE && pcr - ts->last_nit_ts >= ts->nit_period) ||
1423 force_nit
1424 ) {
1425
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 530 if (pcr != AV_NOPTS_VALUE)
1426 530 ts->last_nit_ts = FFMAX(pcr, ts->last_nit_ts);
1427
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 530 if (ts->flags & MPEGTS_FLAG_NIT)
1428 ✗ mpegts_write_nit(s);
1429 }
1430 85544 }
1431
1432 5551 static int write_pcr_bits(uint8_t *buf, int64_t pcr)
1433 {
1434 5551 int64_t pcr_low = pcr % SYSTEM_CLOCK_FREQUENCY_DIVISOR, pcr_high = pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1435
1436 5551 *buf++ = pcr_high >> 25;
1437 5551 *buf++ = pcr_high >> 17;
1438 5551 *buf++ = pcr_high >> 9;
1439 5551 *buf++ = pcr_high >> 1;
1440 5551 *buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e;
1441 5551 *buf++ = pcr_low;
1442
1443 5551 return 6;
1444 }
1445
1446 /* Write a single null transport stream packet */
1447 154 static void mpegts_insert_null_packet(AVFormatContext *s)
1448 {
1449 uint8_t *q;
1450 uint8_t buf[TS_PACKET_SIZE];
1451
1452 154 q = buf;
1453 154 *q++ = SYNC_BYTE;
1454 154 *q++ = 0x00 | (NULL_PID >> 8);
1455 154 *q++ = NULL_PID & 0xff;
1456 154 *q++ = 0x10;
1457 154 memset(q, STUFFING_BYTE, TS_PACKET_SIZE - (q - buf)); /* data_bytes may be assigned any value */
1458 154 write_packet(s, buf);
1459 154 }
1460
1461 /* Write a single transport stream packet with a PCR and no payload */
1462 ✗ static void mpegts_insert_pcr_only_pid(AVFormatContext *s, int pid, int cc,
1463 int discontinuity)
1464 {
1465 ✗ MpegTSWrite *ts = s->priv_data;
1466 uint8_t *q;
1467 uint8_t buf[TS_PACKET_SIZE];
1468
1469 ✗ q = buf;
1470 ✗ *q++ = SYNC_BYTE;
1471 ✗ *q++ = (pid >> 8) & 0x1f;
1472 ✗ *q++ = pid & 0xff;
1473 ✗ *q++ = 0x20 | (cc & 0xf); /* Adaptation only */
1474 /* Continuity Count field does not increment (see 13818-1 section 2.4.3.3) */
1475 ✗ *q++ = TS_PACKET_SIZE - 5; /* Adaptation Field Length */
1476 ✗ *q++ = 0x10; /* Adaptation flags: PCR present */
1477 ✗ if (discontinuity)
1478 ✗ q[-1] |= 0x80;
1479
1480 /* PCR coded into 6 bytes */
1481 ✗ q += write_pcr_bits(q, get_pcr(ts));
1482
1483 /* stuffing bytes */
1484 ✗ memset(q, STUFFING_BYTE, TS_PACKET_SIZE - (q - buf));
1485 ✗ write_packet(s, buf);
1486 ✗ }
1487
1488 ✗ static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
1489 {
1490 ✗ MpegTSWriteStream *ts_st = st->priv_data;
1491 ✗ mpegts_insert_pcr_only_pid(s, ts_st->pid, ts_st->cc, ts_st->discontinuity);
1492 ✗ ts_st->discontinuity = 0;
1493 ✗ }
1494
1495 5884 static void write_pts(uint8_t *q, int fourbits, int64_t pts)
1496 {
1497 int val;
1498
1499 5884 val = fourbits << 4 | (((pts >> 30) & 0x07) << 1) | 1;
1500 5884 *q++ = val;
1501 5884 val = (((pts >> 15) & 0x7fff) << 1) | 1;
1502 5884 *q++ = val >> 8;
1503 5884 *q++ = val;
1504 5884 val = (((pts) & 0x7fff) << 1) | 1;
1505 5884 *q++ = val >> 8;
1506 5884 *q++ = val;
1507 5884 }
1508
1509 /* Set an adaptation field flag in an MPEG-TS packet*/
1510 10969 static void set_af_flag(uint8_t *pkt, int flag)
1511 {
1512 // expect at least one flag to set
1513
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 10969 av_assert0(flag);
1514
1515
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 10969 if ((pkt[3] & 0x20) == 0) {
1516 // no AF yet, set adaptation field flag
1517 5555 pkt[3] |= 0x20;
1518 // 1 byte length, no flags
1519 5555 pkt[4] = 1;
1520 5555 pkt[5] = 0;
1521 }
1522 10969 pkt[5] |= flag;
1523 10969 }
1524
1525 /* Extend the adaptation field by size bytes */
1526 5551 static void extend_af(uint8_t *pkt, int size)
1527 {
1528 // expect already existing adaptation field
1529
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 5551 av_assert0(pkt[3] & 0x20);
1530 5551 pkt[4] += size;
1531 5551 }
1532
1533 /* Get a pointer to MPEG-TS payload (right after TS packet header) */
1534 16520 static uint8_t *get_ts_payload_start(uint8_t *pkt)
1535 {
1536
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 16520 if (pkt[3] & 0x20)
1537 16520 return pkt + 5 + pkt[4];
1538 else
1539 ✗ return pkt + 4;
1540 }
1541
1542 5673 static int get_pes_stream_id(AVFormatContext *s, AVStream *st, int stream_id, int *async)
1543 {
1544 5673 MpegTSWrite *ts = s->priv_data;
1545 5673 *async = 0;
1546
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 5673 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1547
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 292 if (st->codecpar->codec_id == AV_CODEC_ID_DIRAC)
1548 ✗ return STREAM_ID_EXTENDED_STREAM_ID;
1549 else
1550 292 return STREAM_ID_VIDEO_STREAM_0;
1551
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 5381 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1552
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 5381 (st->codecpar->codec_id == AV_CODEC_ID_MP2 ||
1553
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 833 st->codecpar->codec_id == AV_CODEC_ID_MP3 ||
1554
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 833 st->codecpar->codec_id == AV_CODEC_ID_AAC)) {
1555 4548 return STREAM_ID_AUDIO_STREAM_0;
1556
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 833 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1557
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 833 st->codecpar->codec_id == AV_CODEC_ID_AC3 &&
1558 ✗ ts->m2ts_mode) {
1559 ✗ return STREAM_ID_EXTENDED_STREAM_ID;
1560
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 833 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA &&
1561 ✗ st->codecpar->codec_id == AV_CODEC_ID_TIMED_ID3) {
1562 ✗ return STREAM_ID_PRIVATE_STREAM_1;
1563
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 833 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
1564 ✗ if (st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV &&
1565 stream_id == STREAM_ID_PRIVATE_STREAM_1) /* asynchronous KLV */
1566 ✗ *async = 1;
1567 ✗ return stream_id != -1 ? stream_id : STREAM_ID_METADATA_STREAM;
1568 } else {
1569 833 return STREAM_ID_PRIVATE_STREAM_1;
1570 }
1571 }
1572
1573 /* Add a PES header to the front of the payload, and segment into an integer
1574 * number of TS packets. The final TS packet is padded using an oversized
1575 * adaptation header to exactly fill the last TS packet.
1576 * NOTE: 'payload' contains a complete PES payload. */
1577 5673 static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
1578 const uint8_t *payload, int payload_size,
1579 int64_t pts, int64_t dts, int key, int stream_id)
1580 {
1581 5673 MpegTSWriteStream *ts_st = st->priv_data;
1582 5673 MpegTSWrite *ts = s->priv_data;
1583 uint8_t buf[TS_PACKET_SIZE];
1584 uint8_t *q;
1585 int val, is_start, len, header_len, write_pcr, flags;
1586 int afc_len, stuffing_len;
1587 5673 int is_dvb_subtitle = (st->codecpar->codec_id == AV_CODEC_ID_DVB_SUBTITLE);
1588 5673 int is_dvb_teletext = (st->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT);
1589 5673 int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE);
1590
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 5673 int force_pat = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && key && !ts_st->prev_payload_key;
1591 5673 int force_sdt = 0;
1592 5673 int force_nit = 0;
1593
1594
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 5673 av_assert0(ts_st->payload != buf || st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO);
1595
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 5673 if (ts->flags & MPEGTS_FLAG_PAT_PMT_AT_FRAMES && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1596 ✗ force_pat = 1;
1597 }
1598
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 5673 if (ts->flags & MPEGTS_FLAG_REEMIT_PAT_PMT) {
1600 103 force_pat = 1;
1601 103 force_sdt = 1;
1602 103 force_nit = 1;
1603 103 ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT;
1604 }
1605
1606 5673 is_start = 1;
1607
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 91217 while (payload_size > 0) {
1608 85544 int64_t pcr = AV_NOPTS_VALUE;
1609
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 85544 if (ts->mux_rate > 1)
1610 ✗ pcr = get_pcr(ts);
1611
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 85544 else if (dts != AV_NOPTS_VALUE)
1612 85544 pcr = (dts - delay) * SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1613
1614 85544 retransmit_si_info(s, force_pat, force_sdt, force_nit, pcr);
1615 85544 force_pat = 0;
1616 85544 force_sdt = 0;
1617 85544 force_nit = 0;
1618
1619 85544 write_pcr = 0;
1620
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 85544 if (ts->mux_rate > 1) {
1621 /* Send PCR packets for all PCR streams if needed */
1622 ✗ pcr = get_pcr(ts);
1623 ✗ if (ts->pcr_pid >= FIRST_OTHER_PID) {
1624 /* Dedicated PCR PID: send adaptation-only packets on that PID */
1625 ✗ if (pcr - ts->pcr_stream_last_pcr >= ts->pcr_stream_pcr_period) {
1626 ✗ ts->pcr_stream_last_pcr = FFMAX(pcr - ts->pcr_stream_pcr_period, ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period);
1627 ✗ mpegts_insert_pcr_only_pid(s, ts->pcr_pid, 0, 0);
1628 ✗ pcr = get_pcr(ts);
1629 }
1630 ✗ ts->next_pcr = ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period;
1631 ✗ } else if (pcr >= ts->next_pcr) {
1632 ✗ int64_t next_pcr = INT64_MAX;
1633 ✗ for (int i = 0; i < s->nb_streams; i++) {
1634 /* Make the current stream the last, because for that we
1635 * can insert the pcr into the payload later */
1636 ✗ int st2_index = i < st->index ? i : (i + 1 == s->nb_streams ? st->index : i + 1);
1637 ✗ AVStream *st2 = s->streams[st2_index];
1638 ✗ MpegTSWriteStream *ts_st2 = st2->priv_data;
1639 ✗ if (ts_st2->pcr_period) {
1640 ✗ if (pcr - ts_st2->last_pcr >= ts_st2->pcr_period) {
1641 ✗ ts_st2->last_pcr = FFMAX(pcr - ts_st2->pcr_period, ts_st2->last_pcr + ts_st2->pcr_period);
1642 ✗ if (st2 != st) {
1643 ✗ mpegts_insert_pcr_only(s, st2);
1644 ✗ pcr = get_pcr(ts);
1645 } else {
1646 ✗ write_pcr = 1;
1647 }
1648 }
1649 ✗ next_pcr = FFMIN(next_pcr, ts_st2->last_pcr + ts_st2->pcr_period);
1650 }
1651 }
1652 ✗ ts->next_pcr = next_pcr;
1653 }
1654 ✗ if (dts != AV_NOPTS_VALUE && (dts - pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR) > delay) {
1655 /* pcr insert gets priority over null packet insert */
1656 ✗ if (ts->pcr_pid >= FIRST_OTHER_PID) {
1657 ✗ int64_t cur_pcr = get_pcr(ts);
1658 ✗ if (cur_pcr - ts->pcr_stream_last_pcr >= ts->pcr_stream_pcr_period) {
1659 ✗ ts->pcr_stream_last_pcr = FFMAX(cur_pcr - ts->pcr_stream_pcr_period, ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period);
1660 ✗ mpegts_insert_pcr_only_pid(s, ts->pcr_pid, 0, 0);
1661 } else {
1662 ✗ mpegts_insert_null_packet(s);
1663 }
1664 ✗ } else if (write_pcr) {
1665 ✗ mpegts_insert_pcr_only(s, st);
1666 } else {
1667 ✗ mpegts_insert_null_packet(s);
1668 }
1669 /* recalculate write_pcr and possibly retransmit si_info */
1670 ✗ continue;
1671 }
1672
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 85544 } else if (ts->pcr_pid >= FIRST_OTHER_PID && pcr != AV_NOPTS_VALUE) {
1673 /* VBR mode with dedicated PCR PID */
1674 ✗ if (pcr - ts->pcr_stream_last_pcr >= ts->pcr_stream_pcr_period && is_start) {
1675 ✗ ts->pcr_stream_last_pcr = FFMAX(pcr - ts->pcr_stream_pcr_period, ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period);
1676 ✗ mpegts_insert_pcr_only_pid(s, ts->pcr_pid, 0, 0);
1677 }
1678
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 85544 } else if (ts_st->pcr_period && pcr != AV_NOPTS_VALUE) {
1679
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 85430 if (pcr - ts_st->last_pcr >= ts_st->pcr_period && is_start) {
1680 3220 ts_st->last_pcr = FFMAX(pcr - ts_st->pcr_period, ts_st->last_pcr + ts_st->pcr_period);
1681 3220 write_pcr = 1;
1682 }
1683 }
1684
1685 /* prepare packet header */
1686 85544 q = buf;
1687 85544 *q++ = SYNC_BYTE;
1688 85544 val = ts_st->pid >> 8;
1689
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 85544 if (ts->m2ts_mode && st->codecpar->codec_id == AV_CODEC_ID_AC3)
1690 ✗ val |= 0x20;
1691
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 85544 if (is_start)
1692 5673 val |= 0x40;
1693 85544 *q++ = val;
1694 85544 *q++ = ts_st->pid;
1695 85544 ts_st->cc = (ts_st->cc + 1) & 0xf;
1696 85544 *q++ = 0x10 | ts_st->cc; // payload indicator + CC
1697
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 85544 if (ts_st->discontinuity) {
1698 ✗ set_af_flag(buf, 0x80);
1699 ✗ q = get_ts_payload_start(buf);
1700 ✗ ts_st->discontinuity = 0;
1701 }
1702
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 85544 if (!(ts->flags & MPEGTS_FLAG_OMIT_RAI) &&
1703
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 81768 key && is_start && pts != AV_NOPTS_VALUE &&
1704 !is_dvb_teletext /* adaptation+payload forbidden for teletext (ETSI EN 300 472 V1.3.1 4.1) */) {
1705 // set Random Access for key frames
1706
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 5418 if (ts_st->pcr_period && ts->pcr_pid < FIRST_OTHER_PID)
1707 5414 write_pcr = 1;
1708 5418 set_af_flag(buf, 0x40);
1709 5418 q = get_ts_payload_start(buf);
1710 }
1711
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 85544 if (write_pcr) {
1712 5551 set_af_flag(buf, 0x10);
1713 5551 q = get_ts_payload_start(buf);
1714 // add 11, pcr references the last byte of program clock reference base
1715
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 5551 if (dts != AV_NOPTS_VALUE && dts < pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR)
1716 ✗ av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\n");
1717 5551 extend_af(buf, write_pcr_bits(q, pcr));
1718 5551 q = get_ts_payload_start(buf);
1719 }
1720
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 85544 if (is_start) {
1721 5673 int pes_extension = 0;
1722 5673 int pes_header_stuffing_bytes = 0;
1723 int async;
1724 /* write PES header */
1725 5673 *q++ = 0x00;
1726 5673 *q++ = 0x00;
1727 5673 *q++ = 0x01;
1728 5673 *q++ = stream_id = get_pes_stream_id(s, st, stream_id, &async);
1729
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 5673 if (async)
1730 ✗ pts = dts = AV_NOPTS_VALUE;
1731
1732 5673 header_len = 0;
1733
1734
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 5673 if (stream_id != STREAM_ID_PROGRAM_STREAM_MAP &&
1735
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 5673 stream_id != STREAM_ID_PADDING_STREAM &&
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 5673 stream_id != STREAM_ID_PRIVATE_STREAM_2 &&
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1740
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 5673 stream_id != STREAM_ID_DSMCC_STREAM &&
1741 stream_id != STREAM_ID_TYPE_E_STREAM) {
1742
1743 5673 flags = 0;
1744
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 5673 if (pts != AV_NOPTS_VALUE) {
1745 5673 header_len += 5;
1746 5673 flags |= 0x80;
1747 }
1748
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 5673 if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
1749 211 header_len += 5;
1750 211 flags |= 0x40;
1751 }
1752
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 5673 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1753
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 292 st->codecpar->codec_id == AV_CODEC_ID_DIRAC) {
1754 /* set PES_extension_flag */
1755 ✗ pes_extension = 1;
1756 ✗ flags |= 0x01;
1757
1758 /* One byte for PES2 extension flag +
1759 * one byte for extension length +
1760 * one byte for extension id */
1761 ✗ header_len += 3;
1762 }
1763 /* for Blu-ray AC3 Audio the PES Extension flag should be as follow
1764 * otherwise it will not play sound on blu-ray
1765 */
1766
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 5673 if (ts->m2ts_mode &&
1767
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 767 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1768
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 767 st->codecpar->codec_id == AV_CODEC_ID_AC3) {
1769 /* set PES_extension_flag */
1770 ✗ pes_extension = 1;
1771 ✗ flags |= 0x01;
1772 ✗ header_len += 3;
1773 }
1774
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 5673 if (is_dvb_teletext) {
1775 ✗ pes_header_stuffing_bytes = 0x24 - header_len;
1776 ✗ header_len = 0x24;
1777 }
1778 5673 len = payload_size + header_len + 3;
1779 /* 3 extra bytes should be added to DVB subtitle payload: 0x20 0x00 at the beginning and trailing 0xff */
1780
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 5673 if (is_dvb_subtitle) {
1781 ✗ len += 3;
1782 ✗ payload_size++;
1783 }
1784
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 5673 if (len > 0xffff)
1785 ✗ len = 0;
1786
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 5673 if (ts->omit_video_pes_length && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1787 292 len = 0;
1788 }
1789 5673 *q++ = len >> 8;
1790 5673 *q++ = len;
1791 5673 val = 0x80;
1792 /* data alignment indicator is required for subtitle and data streams */
1793
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 5673 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
1794 ✗ val |= 0x04;
1795 5673 *q++ = val;
1796 5673 *q++ = flags;
1797 5673 *q++ = header_len;
1798
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 5673 if (pts != AV_NOPTS_VALUE) {
1799 5673 write_pts(q, flags >> 6, pts);
1800 5673 q += 5;
1801 }
1802
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 5673 if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
1803 211 write_pts(q, 1, dts);
1804 211 q += 5;
1805 }
1806
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 5673 if (pes_extension && st->codecpar->codec_id == AV_CODEC_ID_DIRAC) {
1807 ✗ flags = 0x01; /* set PES_extension_flag_2 */
1808 ✗ *q++ = flags;
1809 ✗ *q++ = 0x80 | 0x01; /* marker bit + extension length */
1810 /* Set the stream ID extension flag bit to 0 and
1811 * write the extended stream ID. */
1812 ✗ *q++ = 0x00 | 0x60;
1813 }
1814 /* For Blu-ray AC3 Audio Setting extended flags */
1815
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 5673 if (ts->m2ts_mode &&
1816 ✗ pes_extension &&
1817 ✗ st->codecpar->codec_id == AV_CODEC_ID_AC3) {
1818 ✗ flags = 0x01; /* set PES_extension_flag_2 */
1819 ✗ *q++ = flags;
1820 ✗ *q++ = 0x80 | 0x01; /* marker bit + extension length */
1821 ✗ *q++ = 0x00 | 0x71; /* for AC3 Audio (specifically on blue-rays) */
1822 }
1823
1824
1825
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 5673 if (is_dvb_subtitle) {
1826 /* First two fields of DVB subtitles PES data:
1827 * data_identifier: for DVB subtitle streams shall be coded with the value 0x20
1828 * subtitle_stream_id: for DVB subtitle stream shall be identified by the value 0x00 */
1829 ✗ *q++ = 0x20;
1830 ✗ *q++ = 0x00;
1831 }
1832
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 5673 if (is_dvb_teletext) {
1833 ✗ memset(q, STUFFING_BYTE, pes_header_stuffing_bytes);
1834 ✗ q += pes_header_stuffing_bytes;
1835 }
1836 } else {
1837 ✗ len = payload_size;
1838 ✗ *q++ = len >> 8;
1839 ✗ *q++ = len;
1840 }
1841 5673 is_start = 0;
1842 }
1843 /* header size */
1844 85544 header_len = q - buf;
1845 /* data len */
1846 85544 len = TS_PACKET_SIZE - header_len;
1847
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 85544 if (len > payload_size)
1848 5670 len = payload_size;
1849 85544 stuffing_len = TS_PACKET_SIZE - header_len - len;
1850
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 85544 if (stuffing_len > 0) {
1851 /* add stuffing with AFC */
1852
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 5670 if (buf[3] & 0x20) {
1853 /* stuffing already present: increase its size */
1854 9 afc_len = buf[4] + 1;
1855 9 memmove(buf + 4 + afc_len + stuffing_len,
1856 9 buf + 4 + afc_len,
1857 9 header_len - (4 + afc_len));
1858 9 buf[4] += stuffing_len;
1859 9 memset(buf + 4 + afc_len, STUFFING_BYTE, stuffing_len);
1860 } else {
1861 /* add stuffing */
1862 5661 memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
1863 5661 buf[3] |= 0x20;
1864 5661 buf[4] = stuffing_len - 1;
1865
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 5661 if (stuffing_len >= 2) {
1866 5659 buf[5] = 0x00;
1867 5659 memset(buf + 6, STUFFING_BYTE, stuffing_len - 2);
1868 }
1869 }
1870 }
1871
1872
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 85544 if (is_dvb_subtitle && payload_size == len) {
1873 ✗ memcpy(buf + TS_PACKET_SIZE - len, payload, len - 1);
1874 ✗ buf[TS_PACKET_SIZE - 1] = 0xff; /* end_of_PES_data_field_marker: an 8-bit field with fixed contents 0xff for DVB subtitle */
1875 } else {
1876 85544 memcpy(buf + TS_PACKET_SIZE - len, payload, len);
1877 }
1878
1879 85544 payload += len;
1880 85544 payload_size -= len;
1881 85544 write_packet(s, buf);
1882 }
1883 5673 ts_st->prev_payload_key = key;
1884 5673 }
1885
1886 235 static int check_h26x_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt, const char *codec)
1887 {
1888
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 235 if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001 && AV_RB24(pkt->data) != 0x000001) {
1889 ✗ if (!st->nb_frames) {
1890 ✗ av_log(s, AV_LOG_ERROR, "%s bitstream malformed, "
1891 "no startcode found, use the video bitstream filter '%s_mp4toannexb' to fix it "
1892 "('-bsf:v %s_mp4toannexb' option with ffmpeg)\n", codec, codec, codec);
1893 ✗ return AVERROR_INVALIDDATA;
1894 }
1895 ✗ av_log(s, AV_LOG_WARNING, "%s bitstream error, startcode missing, size %d", codec, pkt->size);
1896 ✗ if (pkt->size)
1897 ✗ av_log(s, AV_LOG_WARNING, " data %08"PRIX32, AV_RB32(pkt->data));
1898 ✗ av_log(s, AV_LOG_WARNING, "\n");
1899 }
1900 235 return 0;
1901 }
1902
1903 235 int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
1904 {
1905 235 return check_h26x_startcode(s, st, pkt, "h264");
1906 }
1907
1908 /* Based on GStreamer's gst-plugins-base/ext/ogg/gstoggstream.c
1909 * Released under the LGPL v2.1+, written by
1910 * Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
1911 */
1912 ✗ static int opus_get_packet_samples(AVFormatContext *s, AVPacket *pkt)
1913 {
1914 static const int durations[32] = {
1915 480, 960, 1920, 2880, /* Silk NB */
1916 480, 960, 1920, 2880, /* Silk MB */
1917 480, 960, 1920, 2880, /* Silk WB */
1918 480, 960, /* Hybrid SWB */
1919 480, 960, /* Hybrid FB */
1920 120, 240, 480, 960, /* CELT NB */
1921 120, 240, 480, 960, /* CELT NB */
1922 120, 240, 480, 960, /* CELT NB */
1923 120, 240, 480, 960, /* CELT NB */
1924 };
1925 int toc, frame_duration, nframes, duration;
1926
1927 ✗ if (pkt->size < 1)
1928 ✗ return 0;
1929
1930 ✗ toc = pkt->data[0];
1931
1932 ✗ frame_duration = durations[toc >> 3];
1933 ✗ switch (toc & 3) {
1934 ✗ case 0:
1935 ✗ nframes = 1;
1936 ✗ break;
1937 ✗ case 1:
1938 ✗ nframes = 2;
1939 ✗ break;
1940 ✗ case 2:
1941 ✗ nframes = 2;
1942 ✗ break;
1943 ✗ case 3:
1944 ✗ if (pkt->size < 2)
1945 ✗ return 0;
1946 ✗ nframes = pkt->data[1] & 63;
1947 ✗ break;
1948 }
1949
1950 ✗ duration = nframes * frame_duration;
1951 ✗ if (duration > 5760) {
1952 ✗ av_log(s, AV_LOG_WARNING,
1953 "Opus packet duration > 120 ms, invalid");
1954 ✗ return 0;
1955 }
1956
1957 ✗ return duration;
1958 }
1959
1960 ✗ static uint8_t *h26x_prefix_aud(const uint8_t *aud, const int aud_size,
1961 const uint8_t *extra_data, const int extra_size, AVPacket *pkt, int *size)
1962 {
1963 ✗ const int sz = 4; //start code size
1964 uint8_t *data;
1965
1966 ✗ if (pkt->size > INT_MAX - sz - aud_size - extra_size)
1967 ✗ return NULL;
1968 ✗ data = av_malloc(pkt->size + sz + aud_size + extra_size);
1969 ✗ if (!data)
1970 ✗ return NULL;
1971 ✗ AV_WB32(data, 0x00000001);
1972 ✗ memcpy(data + sz, aud, aud_size);
1973 ✗ if (extra_size)
1974 ✗ memcpy(data + sz + aud_size, extra_data, extra_size);
1975 ✗ memcpy(data + sz + aud_size + extra_size, pkt->data, pkt->size);
1976 ✗ *size = pkt->size + sz + aud_size + extra_size;
1977 ✗ return data;
1978 }
1979
1980 #define H264_NAL_TYPE(state) (state & 0x1f)
1981 #define HEVC_NAL_TYPE(state) ((state & 0x7e) >> 1)
1982 #define VVC_NAL_TYPE(state) ((state >> 11) & 0x1f)
1983 9934 static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
1984 {
1985 9934 AVStream *st = s->streams[pkt->stream_index];
1986 9934 int size = pkt->size;
1987 9934 const uint8_t *buf = pkt->data;
1988 9934 uint8_t *data = NULL;
1989 9934 MpegTSWrite *ts = s->priv_data;
1990 9934 MpegTSWriteStream *ts_st = st->priv_data;
1991 9934 const int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) * 2;
1992 9934 const int64_t max_audio_delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) / 2;
1993 9934 int64_t dts = pkt->dts, pts = pkt->pts;
1994 9934 int opus_samples = 0;
1995 9934 int stream_id = -1;
1996
1997 9934 uint8_t *stream_id_p = av_packet_get_side_data(pkt,
1998 AV_PKT_DATA_MPEGTS_STREAM_ID,
1999 NULL);
2000
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 9934 if (stream_id_p)
2001 60 stream_id = stream_id_p[0];
2002
2003
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 9934 if (!ts->first_dts_checked && dts != AV_NOPTS_VALUE) {
2004 40 ts->first_pcr += dts * SYSTEM_CLOCK_FREQUENCY_DIVISOR;
2005 40 ts->first_dts_checked = 1;
2006 }
2007
2008
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 9934 if (ts->copyts < 1) {
2009
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 9934 if (pts != AV_NOPTS_VALUE)
2010 9934 pts += delay;
2011
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 9934 if (dts != AV_NOPTS_VALUE)
2012 9934 dts += delay;
2013 }
2014
2015
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 9934 if (!ts_st->first_timestamp_checked && (pts == AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE)) {
2016 ✗ av_log(s, AV_LOG_ERROR, "first pts and dts value must be set\n");
2017 ✗ return AVERROR_INVALIDDATA;
2018 }
2019 9934 ts_st->first_timestamp_checked = 1;
2020
2021
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 9934 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
2022 156 const uint8_t *p = buf, *buf_end = p + size;
2023 156 const uint8_t *found_aud = NULL, *found_aud_end = NULL;
2024 int nal_type;
2025 156 uint32_t state = -1;
2026
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 156 int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2027 156 int ret = ff_check_h264_startcode(s, st, pkt);
2028
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 156 if (ret < 0)
2029 ✗ return ret;
2030
2031
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 156 if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2032 6 extradd = 0;
2033
2034 /* Ensure that all pictures are prefixed with an AUD, and that
2035 * IDR pictures are also prefixed with SPS and PPS. SPS and PPS
2036 * are assumed to be available in 'extradata' if not found in-band. */
2037 do {
2038 158 p = avpriv_find_start_code(p, buf_end, &state);
2039 158 nal_type = H264_NAL_TYPE(state);
2040 158 av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type);
2041
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 158 if (nal_type == H264_NAL_SPS)
2042 1 extradd = 0;
2043
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 158 if (nal_type == H264_NAL_AUD) {
2044 156 found_aud = p - 4; // start of the 0x000001 start code.
2045 156 found_aud_end = p + 1; // first byte past the AUD.
2046
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 156 if (found_aud < buf)
2047 ✗ found_aud = buf;
2048
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 156 if (buf_end < found_aud_end)
2049 ✗ found_aud_end = buf_end;
2050 }
2051 } while (p < buf_end
2052
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 158 && nal_type != H264_NAL_IDR_SLICE
2053
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 158 && nal_type != H264_NAL_SLICE
2054
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 316 && (extradd > 0 || !found_aud));
2055
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 156 if (nal_type != H264_NAL_IDR_SLICE)
2056 156 extradd = 0;
2057
2058
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 156 if (!found_aud) {
2059 /* Prefix 'buf' with the missing AUD, and extradata if needed. */
2060 ✗ const uint8_t aud[] = {
2061 H264_NAL_AUD,
2062 0xf0, // any slice type (0xe) + rbsp stop one bit
2063 };
2064 ✗ buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud),
2065 ✗ st->codecpar->extradata, extradd, pkt, &size);
2066 ✗ if (!data)
2067 ✗ return AVERROR(ENOMEM);
2068
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 156 } else if (extradd != 0) {
2069 /* Move the AUD up to the beginning of the frame, where the H.264
2070 * spec requires it to appear. Emit the extradata after it. */
2071 PutByteContext pb;
2072 int new_pkt_size;
2073
2074 ✗ if (pkt->size > INT_MAX - 1 - extradd)
2075 ✗ return AVERROR(ENOMEM);
2076 ✗ new_pkt_size = pkt->size + 1 + extradd;
2077 ✗ data = av_malloc(new_pkt_size);
2078 ✗ if (!data)
2079 ✗ return AVERROR(ENOMEM);
2080 ✗ bytestream2_init_writer(&pb, data, new_pkt_size);
2081 ✗ bytestream2_put_byte(&pb, 0x00);
2082 ✗ bytestream2_put_buffer(&pb, found_aud, found_aud_end - found_aud);
2083 ✗ bytestream2_put_buffer(&pb, st->codecpar->extradata, extradd);
2084 ✗ bytestream2_put_buffer(&pb, pkt->data, found_aud - pkt->data);
2085 ✗ bytestream2_put_buffer(&pb, found_aud_end, buf_end - found_aud_end);
2086 ✗ av_assert0(new_pkt_size == bytestream2_tell_p(&pb));
2087 ✗ buf = data;
2088 ✗ size = new_pkt_size;
2089 }
2090
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 9778 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
2091 ✗ if (pkt->size < 2) {
2092 ✗ av_log(s, AV_LOG_ERROR, "AAC packet too short\n");
2093 ✗ return AVERROR_INVALIDDATA;
2094 }
2095 ✗ if ((AV_RB16(pkt->data) & 0xfff0) != 0xfff0) {
2096 int ret;
2097 ✗ AVPacket *pkt2 = ts->pkt;
2098
2099 ✗ if (!ts_st->amux) {
2100 ✗ av_log(s, AV_LOG_ERROR, "AAC bitstream not in ADTS format "
2101 "and extradata missing\n");
2102 } else {
2103 ✗ av_packet_unref(pkt2);
2104 ✗ pkt2->data = pkt->data;
2105 ✗ pkt2->size = pkt->size;
2106 ✗ av_assert0(pkt->dts != AV_NOPTS_VALUE);
2107 ✗ pkt2->dts = av_rescale_q(pkt->dts, st->time_base, ts_st->amux->streams[0]->time_base);
2108
2109 ✗ ret = avio_open_dyn_buf(&ts_st->amux->pb);
2110 ✗ if (ret < 0)
2111 ✗ return ret;
2112
2113 ✗ ret = av_write_frame(ts_st->amux, pkt2);
2114 ✗ if (ret < 0) {
2115 ✗ ffio_free_dyn_buf(&ts_st->amux->pb);
2116 ✗ return ret;
2117 }
2118 ✗ size = avio_close_dyn_buf(ts_st->amux->pb, &data);
2119 ✗ ts_st->amux->pb = NULL;
2120 ✗ buf = data;
2121 }
2122 }
2123
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 9778 } else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
2124 ✗ const uint8_t *p = buf, *buf_end = p + size;
2125 ✗ uint32_t state = -1;
2126 int nal_type;
2127 ✗ int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2128 ✗ int ret = check_h26x_startcode(s, st, pkt, "hevc");
2129 ✗ if (ret < 0)
2130 ✗ return ret;
2131
2132 ✗ if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2133 ✗ extradd = 0;
2134
2135 do {
2136 ✗ p = avpriv_find_start_code(p, buf_end, &state);
2137 ✗ nal_type = HEVC_NAL_TYPE(state);
2138 ✗ av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type);
2139 ✗ if (nal_type == HEVC_NAL_VPS)
2140 ✗ extradd = 0;
2141 ✗ } while (p < buf_end && nal_type != HEVC_NAL_AUD && nal_type >= HEVC_NAL_VPS);
2142
2143 ✗ if (nal_type < HEVC_NAL_BLA_W_LP || nal_type >= HEVC_NAL_RSV_VCL24)
2144 ✗ extradd = 0;
2145 ✗ if (nal_type != HEVC_NAL_AUD) { // AUD NAL
2146 ✗ const uint8_t aud[] = {
2147 (HEVC_NAL_AUD << 1),
2148 0x01,
2149 0x50, // any slice type (0x4) + rbsp stop one bit
2150 };
2151 ✗ buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud),
2152 ✗ st->codecpar->extradata, extradd, pkt, &size);
2153 ✗ if (!data)
2154 ✗ return AVERROR(ENOMEM);
2155 }
2156
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 9778 } else if (st->codecpar->codec_id == AV_CODEC_ID_VVC) {
2157 ✗ const uint8_t *p = buf, *buf_end = p + size;
2158 ✗ uint32_t state = -1;
2159 ✗ uint32_t nal_type = -1;
2160 ✗ int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2161 ✗ int ret = check_h26x_startcode(s, st, pkt, "vvc");
2162 ✗ if (ret < 0)
2163 ✗ return ret;
2164
2165 ✗ if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2166 ✗ extradd = 0;
2167
2168 do {
2169 ✗ p = avpriv_find_start_code(p, buf_end, &state);
2170 // state contains byte behind start code, p points 2 bytes behind start code
2171 ✗ nal_type = VVC_NAL_TYPE(state);
2172 ✗ av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type );
2173 ✗ if (nal_type == VVC_VPS_NUT)
2174 ✗ extradd = 0;
2175 ✗ } while (p < buf_end && nal_type != VVC_AUD_NUT && nal_type >= VVC_OPI_NUT);
2176
2177 ✗ if (nal_type >= VVC_OPI_NUT)
2178 ✗ extradd = 0;
2179 ✗ if (nal_type != VVC_AUD_NUT) { // AUD NAL
2180 ✗ const uint8_t aud[] = {
2181 0, // forbidden_zero_bit, nuh_reserved_zero_bit, nuh_layer_id
2182 (VVC_AUD_NUT << 3) | 1, // nal_unit_type, nuh_temporal_id_plus1(1)
2183 ✗ (pkt->flags & AV_PKT_FLAG_KEY) << 7 | 0x28, // aud_irap_or_gdr_flag, aud_pic_type(2), rbsp_stop_one_bit
2184 };
2185 ✗ buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud), st->codecpar->extradata, extradd, pkt, &size);
2186 ✗ if (!data)
2187 ✗ return AVERROR(ENOMEM);
2188 }
2189
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 9778 } else if (st->codecpar->codec_id == AV_CODEC_ID_OPUS) {
2190 ✗ if (pkt->size < 2) {
2191 ✗ av_log(s, AV_LOG_ERROR, "Opus packet too short\n");
2192 ✗ return AVERROR_INVALIDDATA;
2193 }
2194
2195 /* Add Opus control header */
2196 ✗ if ((AV_RB16(pkt->data) >> 5) != 0x3ff) {
2197 uint8_t *side_data;
2198 size_t side_data_size;
2199 int i, n;
2200 int ctrl_header_size;
2201 ✗ int trim_start = 0, trim_end = 0;
2202
2203 ✗ opus_samples = opus_get_packet_samples(s, pkt);
2204
2205 ✗ side_data = av_packet_get_side_data(pkt,
2206 AV_PKT_DATA_SKIP_SAMPLES,
2207 &side_data_size);
2208
2209 ✗ if (side_data && side_data_size >= 10) {
2210 ✗ trim_end = AV_RL32(side_data + 4) * 48000 / st->codecpar->sample_rate;
2211 }
2212
2213 ✗ if (pkt->size > INT_MAX - 7 - pkt->size / 255)
2214 ✗ return AVERROR(ENOMEM);
2215 ✗ ctrl_header_size = pkt->size + 2 + pkt->size / 255 + 1;
2216 ✗ if (ts_st->opus_pending_trim_start)
2217 ✗ ctrl_header_size += 2;
2218 ✗ if (trim_end)
2219 ✗ ctrl_header_size += 2;
2220
2221 ✗ data = av_malloc(ctrl_header_size);
2222 ✗ if (!data)
2223 ✗ return AVERROR(ENOMEM);
2224
2225 ✗ data[0] = 0x7f;
2226 ✗ data[1] = 0xe0;
2227 ✗ if (ts_st->opus_pending_trim_start)
2228 ✗ data[1] |= 0x10;
2229 ✗ if (trim_end)
2230 ✗ data[1] |= 0x08;
2231
2232 ✗ n = pkt->size;
2233 ✗ i = 2;
2234 do {
2235 ✗ data[i] = FFMIN(n, 255);
2236 ✗ n -= 255;
2237 ✗ i++;
2238 ✗ } while (n >= 0);
2239
2240 ✗ av_assert0(2 + pkt->size / 255 + 1 == i);
2241
2242 ✗ if (ts_st->opus_pending_trim_start) {
2243 ✗ trim_start = FFMIN(ts_st->opus_pending_trim_start, opus_samples);
2244 ✗ AV_WB16(data + i, trim_start);
2245 ✗ i += 2;
2246 ✗ ts_st->opus_pending_trim_start -= trim_start;
2247 }
2248 ✗ if (trim_end) {
2249 ✗ trim_end = FFMIN(trim_end, opus_samples - trim_start);
2250 ✗ AV_WB16(data + i, trim_end);
2251 ✗ i += 2;
2252 }
2253
2254 ✗ memcpy(data + i, pkt->data, pkt->size);
2255 ✗ buf = data;
2256 ✗ size = ctrl_header_size;
2257 } else {
2258 /* TODO: Can we get TS formatted data here? If so we will
2259 * need to count the samples of that too! */
2260 ✗ av_log(s, AV_LOG_WARNING, "Got MPEG-TS formatted Opus data, unhandled");
2261 }
2262
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 9778 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3 && !ts_st->dvb_ac3_desc) {
2263 ✗ AC3HeaderInfo *hdr = NULL;
2264
2265 ✗ if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) >= 0) {
2266 uint8_t number_of_channels_flag;
2267 uint8_t service_type_flag;
2268 ✗ uint8_t full_service_flag = 1;
2269 DVBAC3Descriptor *dvb_ac3_desc;
2270
2271 ✗ dvb_ac3_desc = av_mallocz(sizeof(*dvb_ac3_desc));
2272 ✗ if (!dvb_ac3_desc) {
2273 ✗ av_free(hdr);
2274 ✗ return AVERROR(ENOMEM);
2275 }
2276
2277 ✗ service_type_flag = hdr->bitstream_mode;
2278 ✗ switch (hdr->channel_mode) {
2279 ✗ case AC3_CHMODE_DUALMONO:
2280 ✗ number_of_channels_flag = 1;
2281 ✗ break;
2282 ✗ case AC3_CHMODE_MONO:
2283 ✗ number_of_channels_flag = 0;
2284 ✗ break;
2285 ✗ case AC3_CHMODE_STEREO:
2286 ✗ if (hdr->dolby_surround_mode == AC3_DSURMOD_ON)
2287 ✗ number_of_channels_flag = 3;
2288 else
2289 ✗ number_of_channels_flag = 2;
2290 ✗ break;
2291 ✗ case AC3_CHMODE_3F:
2292 case AC3_CHMODE_2F1R:
2293 case AC3_CHMODE_3F1R:
2294 case AC3_CHMODE_2F2R:
2295 case AC3_CHMODE_3F2R:
2296 ✗ number_of_channels_flag = 4;
2297 ✗ break;
2298 ✗ default: /* reserved */
2299 ✗ number_of_channels_flag = 7;
2300 ✗ break;
2301 }
2302
2303 ✗ if (service_type_flag == 1 || service_type_flag == 4 ||
2304 ✗ (service_type_flag == 7 && !number_of_channels_flag))
2305 ✗ full_service_flag = 0;
2306
2307 ✗ dvb_ac3_desc->component_type_flag = 1;
2308 ✗ dvb_ac3_desc->component_type = (full_service_flag << 6) |
2309 ✗ ((service_type_flag & 0x7) << 3) |
2310 ✗ (number_of_channels_flag & 0x7);
2311 ✗ dvb_ac3_desc->bsid_flag = 1;
2312 ✗ dvb_ac3_desc->bsid = hdr->bitstream_id;
2313 ✗ dvb_ac3_desc->mainid_flag = 0;
2314 ✗ dvb_ac3_desc->asvc_flag = 0;
2315
2316 ✗ ts_st->dvb_ac3_desc = dvb_ac3_desc;
2317 }
2318 ✗ av_free(hdr);
2319
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 9778 } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_BLURAY && ts->m2ts_mode) {
2320 767 mpegts_write_pes(s, st, buf, size, pts, dts,
2321 767 pkt->flags & AV_PKT_FLAG_KEY, stream_id);
2322 767 return 0;
2323 }
2324
2325
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✓ Branch 3 taken 4206 times.
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 9167 if (ts_st->payload_size && (ts_st->payload_size + size > ts->pes_payload_size ||
2326
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 4519 (dts != AV_NOPTS_VALUE && ts_st->payload_dts != AV_NOPTS_VALUE &&
2327
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 4519 dts - ts_st->payload_dts >= max_audio_delay) ||
2328
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 4261 ts_st->opus_queued_samples + opus_samples >= 5760 /* 120ms */)) {
2329 4464 mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size,
2330 ts_st->payload_pts, ts_st->payload_dts,
2331 4464 ts_st->payload_flags & AV_PKT_FLAG_KEY, stream_id);
2332 4464 ts_st->payload_size = 0;
2333 4464 ts_st->opus_queued_samples = 0;
2334 }
2335
2336
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 9167 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO || size > ts->pes_payload_size) {
2337
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 357 av_assert0(!ts_st->payload_size);
2338 // for video and subtitle, write a single pes packet
2339 357 mpegts_write_pes(s, st, buf, size, pts, dts,
2340 357 pkt->flags & AV_PKT_FLAG_KEY, stream_id);
2341 357 ts_st->opus_queued_samples = 0;
2342 357 av_free(data);
2343 357 return 0;
2344 }
2345
2346
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 8810 if (!ts_st->payload_size) {
2347 4549 ts_st->payload_pts = pts;
2348 4549 ts_st->payload_dts = dts;
2349 4549 ts_st->payload_flags = pkt->flags;
2350 }
2351
2352 8810 memcpy(ts_st->payload + ts_st->payload_size, buf, size);
2353 8810 ts_st->payload_size += size;
2354 8810 ts_st->opus_queued_samples += opus_samples;
2355
2356 8810 av_free(data);
2357
2358 8810 return 0;
2359 }
2360
2361 227 static void mpegts_write_flush(AVFormatContext *s)
2362 {
2363 227 MpegTSWrite *ts = s->priv_data;
2364 int i;
2365
2366 /* flush current packets */
2367
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 456 for (i = 0; i < s->nb_streams; i++) {
2368 229 AVStream *st = s->streams[i];
2369 229 MpegTSWriteStream *ts_st = st->priv_data;
2370
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 229 if (ts_st->payload_size > 0) {
2371 85 mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size,
2372 ts_st->payload_pts, ts_st->payload_dts,
2373 85 ts_st->payload_flags & AV_PKT_FLAG_KEY, -1);
2374 85 ts_st->payload_size = 0;
2375 85 ts_st->opus_queued_samples = 0;
2376 }
2377 }
2378
2379
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 227 if (ts->m2ts_mode) {
2380 6 int packets = (avio_tell(s->pb) / (TS_PACKET_SIZE + 4)) % 32;
2381
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 160 while (packets++ < 32)
2382 154 mpegts_insert_null_packet(s);
2383 }
2384 227 }
2385
2386 10121 static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
2387 {
2388
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 10121 if (!pkt) {
2389 187 mpegts_write_flush(s);
2390 187 return 1;
2391 } else {
2392 9934 return mpegts_write_packet_internal(s, pkt);
2393 }
2394 }
2395
2396 40 static int mpegts_write_end(AVFormatContext *s)
2397 {
2398
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✗ Branch 1 not taken.
 40 if (s->pb)
2399 40 mpegts_write_flush(s);
2400
2401 40 return 0;
2402 }
2403
2404 40 static void mpegts_deinit(AVFormatContext *s)
2405 {
2406 40 MpegTSWrite *ts = s->priv_data;
2407 MpegTSService *service;
2408 int i;
2409
2410
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 82 for (i = 0; i < s->nb_streams; i++) {
2411 42 AVStream *st = s->streams[i];
2412 42 MpegTSWriteStream *ts_st = st->priv_data;
2413
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 42 if (ts_st) {
2414 42 av_freep(&ts_st->dvb_ac3_desc);
2415 42 av_freep(&ts_st->payload);
2416 42 av_freep(&ts_st->stream_groups);
2417
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 42 if (ts_st->amux) {
2418 ✗ avformat_free_context(ts_st->amux);
2419 ✗ ts_st->amux = NULL;
2420 }
2421 }
2422 }
2423
2424
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 80 for (i = 0; i < ts->nb_services; i++) {
2425 40 service = ts->services[i];
2426 40 av_freep(&service);
2427 }
2428 40 av_freep(&ts->services);
2429 40 }
2430
2431 36 static int mpegts_check_bitstream(AVFormatContext *s, AVStream *st,
2432 const AVPacket *pkt)
2433 {
2434 const struct Entry {
2435 enum AVCodecID id;
2436 const char *bsf_name;
2437 uint8_t mask;
2438 uint8_t value;
2439 36 } list[] = {
2440 { AV_CODEC_ID_H264, "h264_mp4toannexb", 0xff, 0x01 /* configurationVersion in AVCDecoderConfigurationRecord */},
2441 { AV_CODEC_ID_HEVC, "hevc_mp4toannexb", 0xff, 0x01 /* configurationVersion in HEVCDecoderConfigurationRecord */},
2442 { AV_CODEC_ID_VVC, "vvc_mp4toannexb", 0xf8, 0xf8 /* reserved '11111'b in VVCDecoderConfigurationRecord */},
2443 };
2444
2445
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 141 for (int i = 0; i < FF_ARRAY_ELEMS(list); i++) {
2446 106 const struct Entry *e = list + i;
2447
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 106 if (e->id == st->codecpar->codec_id &&
2448
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 2 pkt->size >= 5 && AV_RB32(pkt->data) != 0x0000001 &&
2449
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 1 (AV_RB24(pkt->data) != 0x000001 ||
2450 ✗ (st->codecpar->extradata_size > 0 &&
2451 ✗ ((st->codecpar->extradata[0] & e->mask) == e->value))))
2452 1 return ff_stream_add_bitstream_filter(st, e->bsf_name, NULL);
2453 }
2454 35 return 1;
2455 }
2456
2457 #define OFFSET(x) offsetof(MpegTSWrite, x)
2458 #define ENC AV_OPT_FLAG_ENCODING_PARAM
2459 static const AVOption options[] = {
2460 { "mpegts_transport_stream_id", "Set transport_stream_id field.",
2461 OFFSET(transport_stream_id), AV_OPT_TYPE_INT, { .i64 = 0x0001 }, 0x0001, 0xffff, ENC },
2462 { "mpegts_original_network_id", "Set original_network_id field.",
2463 OFFSET(original_network_id), AV_OPT_TYPE_INT, { .i64 = DVB_PRIVATE_NETWORK_START }, 0x0001, 0xffff, ENC },
2464 { "mpegts_service_id", "Set service_id field.",
2465 OFFSET(service_id), AV_OPT_TYPE_INT, { .i64 = 0x0001 }, 0x0001, 0xffff, ENC },
2466 { "mpegts_service_type", "Set service_type field.",
2467 OFFSET(service_type), AV_OPT_TYPE_INT, { .i64 = 0x01 }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2468 { "digital_tv", "Digital Television.",
2469 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_DIGITAL_TV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2470 { "digital_radio", "Digital Radio.",
2471 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_DIGITAL_RADIO }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2472 { "teletext", "Teletext.",
2473 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_TELETEXT }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2474 { "advanced_codec_digital_radio", "Advanced Codec Digital Radio.",
2475 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2476 { "mpeg2_digital_hdtv", "MPEG2 Digital HDTV.",
2477 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2478 { "advanced_codec_digital_sdtv", "Advanced Codec Digital SDTV.",
2479 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2480 { "advanced_codec_digital_hdtv", "Advanced Codec Digital HDTV.",
2481 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2482 { "hevc_digital_hdtv", "HEVC Digital Television Service.",
2483 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2484 { "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
2485 OFFSET(pmt_start_pid), AV_OPT_TYPE_INT, { .i64 = 0x1000 }, FIRST_OTHER_PID, LAST_OTHER_PID, ENC },
2486 { "mpegts_start_pid", "Set the first pid.",
2487 OFFSET(start_pid), AV_OPT_TYPE_INT, { .i64 = 0x0100 }, FIRST_OTHER_PID, LAST_OTHER_PID, ENC },
2488 { "mpegts_m2ts_mode", "Enable m2ts mode.", OFFSET(m2ts_mode), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, ENC },
2489 { "muxrate", NULL, OFFSET(mux_rate), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
2490 { "pes_payload_size", "Minimum PES packet payload in bytes",
2491 OFFSET(pes_payload_size), AV_OPT_TYPE_INT, { .i64 = DEFAULT_PES_PAYLOAD_SIZE }, 0, INT_MAX, ENC },
2492 { "mpegts_flags", "MPEG-TS muxing flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2493 { "resend_headers", "Reemit PAT/PMT before writing the next packet",
2494 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_REEMIT_PAT_PMT }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2495 { "latm", "Use LATM packetization for AAC",
2496 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_AAC_LATM }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2497 { "pat_pmt_at_frames", "Reemit PAT and PMT at each video frame",
2498 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_PAT_PMT_AT_FRAMES}, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2499 { "system_b", "Conform to System B (DVB) instead of System A (ATSC)",
2500 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_SYSTEM_B }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2501 { "initial_discontinuity", "Mark initial packets as discontinuous",
2502 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_DISCONT }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2503 { "nit", "Enable NIT transmission",
2504 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_NIT}, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2505 { "omit_rai", "Disable writing of random access indicator",
2506 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_OMIT_RAI }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2507 { "mpegts_copyts", "don't offset dts/pts", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, ENC },
2508 { "tables_version", "set PAT, PMT, SDT and NIT version", OFFSET(tables_version), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 31, ENC },
2509 { "omit_video_pes_length", "Omit the PES packet length for video packets",
2510 OFFSET(omit_video_pes_length), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, ENC },
2511 { "pcr_period", "PCR retransmission time in milliseconds",
2512 OFFSET(pcr_period_ms), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, ENC },
2513 { "mpegts_pcr_pid", "Set a separate PCR PID (-1 means PCR on video PID)",
2514 OFFSET(pcr_pid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, LAST_OTHER_PID, ENC },
2515 { "pat_period", "PAT/PMT retransmission time limit in seconds",
2516 OFFSET(pat_period_us), AV_OPT_TYPE_DURATION, { .i64 = PAT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2517 { "sdt_period", "SDT retransmission time limit in seconds",
2518 OFFSET(sdt_period_us), AV_OPT_TYPE_DURATION, { .i64 = SDT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2519 { "nit_period", "NIT retransmission time limit in seconds",
2520 OFFSET(nit_period_us), AV_OPT_TYPE_DURATION, { .i64 = NIT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2521 { NULL },
2522 };
2523
2524 static const AVClass mpegts_muxer_class = {
2525 .class_name = "MPEGTS muxer",
2526 .item_name = av_default_item_name,
2527 .option = options,
2528 .version = LIBAVUTIL_VERSION_INT,
2529 };
2530
2531 const FFOutputFormat ff_mpegts_muxer = {
2532 .p.name = "mpegts",
2533 .p.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
2534 .p.mime_type = "video/MP2T",
2535 .p.extensions = "ts,m2t,m2ts,mts",
2536 .priv_data_size = sizeof(MpegTSWrite),
2537 .p.audio_codec = AV_CODEC_ID_MP2,
2538 .p.video_codec = AV_CODEC_ID_MPEG2VIDEO,
2539 .init = mpegts_init,
2540 .write_packet = mpegts_write_packet,
2541 .write_trailer = mpegts_write_end,
2542 .deinit = mpegts_deinit,
2543 .check_bitstream = mpegts_check_bitstream,
2544 .p.flags = AVFMT_VARIABLE_FPS | AVFMT_NODIMENSIONS,
2545 .flags_internal = FF_OFMT_FLAG_ALLOW_FLUSH,
2546 .p.priv_class = &mpegts_muxer_class,
2547 };
2548