FFmpeg
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mpegtsenc.c
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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 "mpegts.h"
43#include "mux.h"
44
45#define PCR_TIME_BASE 27000000
46
47/* write DVB SI sections */
48
49#define DVB_PRIVATE_NETWORK_START 0xff01
50
51/*********************************************/
52/* mpegts section writer */
53
54typedef struct MpegTSSection {
55 int pid;
56 int cc;
57 int discontinuity;
58 void (*write_packet)(struct MpegTSSection *s, const uint8_t *packet);
59 void *opaque;
60 int remaining;
61} MpegTSSection;
62
63typedef struct MpegTSService {
64 MpegTSSection pmt; /* MPEG-2 PMT table context */
65 int sid; /* service ID */
66 uint8_t name[256];
67 uint8_t provider_name[256];
68 int pcr_pid;
69 AVProgram *program;
70} MpegTSService;
71
72// service_type values as defined in ETSI 300 468
73enum {
74 MPEGTS_SERVICE_TYPE_DIGITAL_TV = 0x01,
75 MPEGTS_SERVICE_TYPE_DIGITAL_RADIO = 0x02,
76 MPEGTS_SERVICE_TYPE_TELETEXT = 0x03,
77 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO = 0x0A,
78 MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV = 0x11,
79 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV = 0x16,
80 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV = 0x19,
81 MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV = 0x1F,
82};
83typedef struct MpegTSWrite {
84 const AVClass *av_class;
85 MpegTSSection pat; /* MPEG-2 PAT table */
86 MpegTSSection sdt; /* MPEG-2 SDT table context */
87 MpegTSSection nit; /* MPEG-2 NIT table context */
88 MpegTSService **services;
89 AVPacket *pkt;
90 int64_t sdt_period; /* SDT period in PCR time base */
91 int64_t pat_period; /* PAT/PMT period in PCR time base */
92 int64_t nit_period; /* NIT period in PCR time base */
93 int nb_services;
94 int64_t first_pcr;
95 int first_dts_checked;
96 int64_t next_pcr;
97 int mux_rate; ///< set to 1 when VBR
98 int pes_payload_size;
99 int64_t total_size;
100
101 int transport_stream_id;
102 int original_network_id;
103 int service_id;
104 int service_type;
105
106 int pmt_start_pid;
107 int start_pid;
108 int m2ts_mode;
109 int m2ts_video_pid;
110 int m2ts_audio_pid;
111 int m2ts_pgssub_pid;
112 int m2ts_textsub_pid;
113
114 int pcr_period_ms;
115#define MPEGTS_FLAG_REEMIT_PAT_PMT 0x01
116#define MPEGTS_FLAG_AAC_LATM 0x02
117#define MPEGTS_FLAG_PAT_PMT_AT_FRAMES 0x04
118#define MPEGTS_FLAG_SYSTEM_B 0x08
119#define MPEGTS_FLAG_DISCONT 0x10
120#define MPEGTS_FLAG_NIT 0x20
121#define MPEGTS_FLAG_OMIT_RAI 0x40
122 int flags;
123 int copyts;
124 int tables_version;
125 int64_t pat_period_us;
126 int64_t sdt_period_us;
127 int64_t nit_period_us;
128 int64_t last_pat_ts;
129 int64_t last_sdt_ts;
130 int64_t last_nit_ts;
131
132 uint8_t provider_name[256];
133
134 int omit_video_pes_length;
135
136 int pcr_pid; ///< user-specified separate PCR PID (-1 = use video PID)
137 int64_t pcr_stream_pcr_period; ///< PCR period for the dedicated stream
138 int64_t pcr_stream_last_pcr; ///< last PCR sent on the dedicated PID
139} MpegTSWrite;
140
141/* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
142#define DEFAULT_PES_HEADER_FREQ 16
143#define DEFAULT_PES_PAYLOAD_SIZE ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
144
145/* The section length is 12 bits. The first 2 are set to 0, the remaining
146 * 10 bits should not exceed 1021. */
147#define SECTION_LENGTH 1020
148
149/* NOTE: 4 bytes must be left at the end for the crc32 */
150static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
151{
152 unsigned int crc;
153 unsigned char packet[TS_PACKET_SIZE];
154 const unsigned char *buf_ptr;
155 unsigned char *q;
156 int first, b, len1, left;
157
158 crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE),
159 -1, buf, len - 4));
160
161 buf[len - 4] = (crc >> 24) & 0xff;
162 buf[len - 3] = (crc >> 16) & 0xff;
163 buf[len - 2] = (crc >> 8) & 0xff;
164 buf[len - 1] = crc & 0xff;
165
166 /* send each packet */
167 buf_ptr = buf;
168 while (len > 0) {
169 first = buf == buf_ptr;
170 q = packet;
171 *q++ = SYNC_BYTE;
172 b = s->pid >> 8;
173 if (first)
174 b |= 0x40;
175 *q++ = b;
176 *q++ = s->pid;
177 s->cc = (s->cc + 1) & 0xf;
178 *q++ = 0x10 | s->cc;
179 if (s->discontinuity) {
180 q[-1] |= 0x20;
181 *q++ = 1;
182 *q++ = 0x80;
183 s->discontinuity = 0;
184 }
185 if (first)
186 *q++ = 0; /* 0 offset */
187 len1 = TS_PACKET_SIZE - (q - packet);
188 if (len1 > len)
189 len1 = len;
190 memcpy(q, buf_ptr, len1);
191 q += len1;
192 /* add known padding data */
193 left = TS_PACKET_SIZE - (q - packet);
194 if (left > 0)
195 memset(q, STUFFING_BYTE, left);
196
197 s->write_packet(s, packet);
198
199 buf_ptr += len1;
200 len -= len1;
201 }
202}
203
204static inline void put16(uint8_t **q_ptr, int val)
205{
206 uint8_t *q;
207 q = *q_ptr;
208 *q++ = val >> 8;
209 *q++ = val;
210 *q_ptr = q;
211}
212
213static int mpegts_write_section1(MpegTSSection *s, int tid, int id,
214 int version, int sec_num, int last_sec_num,
215 uint8_t *buf, int len)
216{
217 uint8_t section[1024], *q;
218 unsigned int tot_len;
219 /* reserved_future_use field must be set to 1 for SDT and NIT */
220 unsigned int flags = (tid == SDT_TID || tid == NIT_TID) ? 0xf000 : 0xb000;
221
222 tot_len = 3 + 5 + len + 4;
223 /* check if not too big */
224 if (tot_len > 1024)
225 return AVERROR_INVALIDDATA;
226
227 q = section;
228 *q++ = tid;
229 put16(&q, flags | (len + 5 + 4)); /* 5 byte header + 4 byte CRC */
230 put16(&q, id);
231 *q++ = 0xc1 | (version << 1); /* current_next_indicator = 1 */
232 *q++ = sec_num;
233 *q++ = last_sec_num;
234 memcpy(q, buf, len);
235
236 mpegts_write_section(s, section, tot_len);
237 return 0;
238}
239
240/*********************************************/
241/* mpegts writer */
242
243#define DEFAULT_PROVIDER_NAME "FFmpeg"
244#define DEFAULT_SERVICE_NAME "Service"
245
246/* we retransmit the SI info at this rate */
247#define SDT_RETRANS_TIME 500
248#define PAT_RETRANS_TIME 100
249#define PCR_RETRANS_TIME 20
250#define NIT_RETRANS_TIME 500
251
275
276static void mpegts_write_pat(AVFormatContext *s)
277{
278 MpegTSWrite *ts = s->priv_data;
279 MpegTSService *service;
280 uint8_t data[SECTION_LENGTH], *q;
281 int i;
282
283 q = data;
284 if (ts->flags & MPEGTS_FLAG_NIT) {
285 put16(&q, 0x0000);
286 put16(&q, NIT_PID);
287 }
288 for (i = 0; i < ts->nb_services; i++) {
289 service = ts->services[i];
290 put16(&q, service->sid);
291 put16(&q, 0xe000 | service->pmt.pid);
292 }
293 mpegts_write_section1(&ts->pat, PAT_TID, ts->transport_stream_id, ts->tables_version, 0, 0,
294 data, q - data);
295}
296
297static void putbuf(uint8_t **q_ptr, const uint8_t *buf, size_t len)
298{
299 memcpy(*q_ptr, buf, len);
300 *q_ptr += len;
301}
302
303static int put_arib_caption_descriptor(AVFormatContext *s, uint8_t **q_ptr,
304 AVCodecParameters *codecpar)
305{
306 uint8_t stream_identifier;
307 uint16_t data_component_id;
308 uint8_t *q = *q_ptr;
309
310 switch (codecpar->profile) {
311 case AV_PROFILE_ARIB_PROFILE_A:
312 stream_identifier = 0x30;
313 data_component_id = 0x0008;
314 break;
315 case AV_PROFILE_ARIB_PROFILE_C:
316 stream_identifier = 0x87;
317 data_component_id = 0x0012;
318 break;
319 default:
320 av_log(s, AV_LOG_ERROR,
321 "Unset/unknown ARIB caption profile %d utilized!\n",
322 codecpar->profile);
323 return AVERROR_INVALIDDATA;
324 }
325
326 // stream_identifier_descriptor
327 *q++ = STREAM_IDENTIFIER_DESCRIPTOR; // descriptor_tag
328 *q++ = 1; // descriptor_length
329 *q++ = stream_identifier; // component_tag: stream_identifier
330
331 // data_component_descriptor, defined in ARIB STD-B10, part 2, 6.2.20
332 *q++ = DATA_COMPONENT_DESCRIPTOR; // descriptor_tag: ARIB data coding type descriptor
333 *q++ = 3; // descriptor_length
334 put16(&q, data_component_id); // data_component_id
335 // additional_arib_caption_info: defined in ARIB STD-B24, fascicle 1, Part 3, 9.6.1
336 // Here we utilize a pre-defined set of values defined in ARIB TR-B14,
337 // Fascicle 2, 4.2.8.5 for PMT usage, with the reserved bits in the middle
338 // set to 1 (as that is what every broadcaster seems to be doing in
339 // production).
340 *q++ = 0x3D; // DMF('0011'), Reserved('11'), Timing('01')
341
342 *q_ptr = q;
343
344 return 0;
345}
346
347static void put_registration_descriptor(uint8_t **q_ptr, uint32_t tag)
348{
349 uint8_t *q = *q_ptr;
350 *q++ = REGISTRATION_DESCRIPTOR;
351 *q++ = 4;
352 *q++ = tag;
353 *q++ = tag >> 8;
354 *q++ = tag >> 16;
355 *q++ = tag >> 24;
356 *q_ptr = q;
357}
358
359static int get_dvb_stream_type(AVFormatContext *s, AVStream *st)
360{
361 MpegTSWrite *ts = s->priv_data;
362 MpegTSWriteStream *ts_st = st->priv_data;
363 int stream_type;
364
365 switch (st->codecpar->codec_id) {
366 case AV_CODEC_ID_MPEG1VIDEO:
367 case AV_CODEC_ID_MPEG2VIDEO:
368 stream_type = STREAM_TYPE_VIDEO_MPEG2;
369 break;
370 case AV_CODEC_ID_MPEG4:
371 stream_type = STREAM_TYPE_VIDEO_MPEG4;
372 break;
373 case AV_CODEC_ID_H264:
374 stream_type = STREAM_TYPE_VIDEO_H264;
375 break;
376 case AV_CODEC_ID_HEVC:
377 stream_type = STREAM_TYPE_VIDEO_HEVC;
378 break;
379 case AV_CODEC_ID_VVC:
380 stream_type = STREAM_TYPE_VIDEO_VVC;
381 break;
382 case AV_CODEC_ID_CAVS:
383 stream_type = STREAM_TYPE_VIDEO_CAVS;
384 break;
385 case AV_CODEC_ID_AVS2:
386 stream_type = STREAM_TYPE_VIDEO_AVS2;
387 break;
388 case AV_CODEC_ID_AVS3:
389 stream_type = STREAM_TYPE_VIDEO_AVS3;
390 break;
391 case AV_CODEC_ID_DIRAC:
392 stream_type = STREAM_TYPE_VIDEO_DIRAC;
393 break;
394 case AV_CODEC_ID_VC1:
395 stream_type = STREAM_TYPE_VIDEO_VC1;
396 break;
397 case AV_CODEC_ID_MP2:
398 case AV_CODEC_ID_MP3:
399 if ( st->codecpar->sample_rate > 0
400 && st->codecpar->sample_rate < 32000) {
401 stream_type = STREAM_TYPE_AUDIO_MPEG2;
402 } else {
403 stream_type = STREAM_TYPE_AUDIO_MPEG1;
404 }
405 break;
406 case AV_CODEC_ID_AAC:
407 stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM)
408 ? STREAM_TYPE_AUDIO_AAC_LATM
409 : STREAM_TYPE_AUDIO_AAC;
410 break;
411 case AV_CODEC_ID_AAC_LATM:
412 stream_type = STREAM_TYPE_AUDIO_AAC_LATM;
413 break;
414 case AV_CODEC_ID_AC3:
415 stream_type = (ts->flags & MPEGTS_FLAG_SYSTEM_B)
416 ? STREAM_TYPE_PRIVATE_DATA
417 : STREAM_TYPE_ATSC_AUDIO_AC3;
418 break;
419 case AV_CODEC_ID_EAC3:
420 stream_type = (ts->flags & MPEGTS_FLAG_SYSTEM_B)
421 ? STREAM_TYPE_PRIVATE_DATA
422 : STREAM_TYPE_ATSC_AUDIO_EAC3;
423 break;
424 case AV_CODEC_ID_DTS:
425 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)
426 break;
427 case AV_CODEC_ID_TRUEHD:
428 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)
429 break;
430 case AV_CODEC_ID_OPUS:
431 stream_type = STREAM_TYPE_PRIVATE_DATA;
432 break;
433 case AV_CODEC_ID_TIMED_ID3:
434 stream_type = STREAM_TYPE_METADATA;
435 break;
436 case AV_CODEC_ID_SMPTE_2038:
437 stream_type = STREAM_TYPE_PRIVATE_DATA;
438 break;
439 case AV_CODEC_ID_DVB_SUBTITLE:
440 case AV_CODEC_ID_DVB_TELETEXT:
441 case AV_CODEC_ID_ARIB_CAPTION:
442 stream_type = STREAM_TYPE_PRIVATE_DATA;
443 break;
444 case AV_CODEC_ID_SMPTE_KLV:
445 if (st->codecpar->profile == AV_PROFILE_KLVA_SYNC) {
446 stream_type = STREAM_TYPE_METADATA;
447 } else {
448 stream_type = STREAM_TYPE_PRIVATE_DATA;
449 }
450 break;
451 default:
452 av_log_once(s, AV_LOG_WARNING, AV_LOG_DEBUG, &ts_st->data_st_warning,
453 "Stream %d, codec %s, is muxed as a private data stream "
454 "and may not be recognized upon reading.\n", st->index,
455 avcodec_get_name(st->codecpar->codec_id));
456 stream_type = STREAM_TYPE_PRIVATE_DATA;
457 break;
458 }
459
460 return stream_type;
461}
462
463static int get_m2ts_stream_type(AVFormatContext *s, AVStream *st)
464{
465 int stream_type;
466 MpegTSWriteStream *ts_st = st->priv_data;
467
468 switch (st->codecpar->codec_id) {
469 case AV_CODEC_ID_MPEG2VIDEO:
470 stream_type = STREAM_TYPE_VIDEO_MPEG2;
471 break;
472 case AV_CODEC_ID_H264:
473 stream_type = STREAM_TYPE_VIDEO_H264;
474 break;
475 case AV_CODEC_ID_VC1:
476 stream_type = STREAM_TYPE_VIDEO_VC1;
477 break;
478 case AV_CODEC_ID_HEVC:
479 stream_type = STREAM_TYPE_VIDEO_HEVC;
480 break;
481 case AV_CODEC_ID_PCM_BLURAY:
482 stream_type = STREAM_TYPE_BLURAY_AUDIO_PCM_BLURAY;
483 break;
484 case AV_CODEC_ID_AC3:
485 stream_type = STREAM_TYPE_BLURAY_AUDIO_AC3;
486 break;
487 case AV_CODEC_ID_DTS:
488 stream_type = (st->codecpar->ch_layout.nb_channels > 6) ?
489 STREAM_TYPE_BLURAY_AUDIO_DTS_HD :
490 STREAM_TYPE_BLURAY_AUDIO_DTS;
491 break;
492 case AV_CODEC_ID_TRUEHD:
493 stream_type = STREAM_TYPE_BLURAY_AUDIO_TRUEHD;
494 break;
495 case AV_CODEC_ID_EAC3:
496 stream_type = STREAM_TYPE_BLURAY_AUDIO_EAC3;
497 break;
498 case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
499 stream_type = STREAM_TYPE_BLURAY_SUBTITLE_PGS;
500 break;
501 case AV_CODEC_ID_HDMV_TEXT_SUBTITLE:
502 stream_type = STREAM_TYPE_BLURAY_SUBTITLE_TEXT;
503 break;
504 default:
505 av_log_once(s, AV_LOG_WARNING, AV_LOG_DEBUG, &ts_st->data_st_warning,
506 "Stream %d, codec %s, is muxed as a private data stream "
507 "and may not be recognized upon reading.\n", st->index,
508 avcodec_get_name(st->codecpar->codec_id));
509 stream_type = STREAM_TYPE_PRIVATE_DATA;
510 break;
511 }
512
513 return stream_type;
514}
515
516static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
517{
518 MpegTSWrite *ts = s->priv_data;
519 uint8_t data[SECTION_LENGTH], *q, *desc_length_ptr, *program_info_length_ptr;
520 int val, stream_type, i, err = 0;
521
522 q = data;
523 put16(&q, 0xe000 | service->pcr_pid);
524
525 program_info_length_ptr = q;
526 q += 2; /* patched after */
527
528 /* put program info here */
529 if (ts->m2ts_mode) {
530 put_registration_descriptor(&q, MKTAG('H', 'D', 'M', 'V'));
531 *q++ = 0x88; // descriptor_tag - hdmv_copy_control_descriptor
532 *q++ = 0x04; // descriptor_length
533 put16(&q, 0x0fff); // CA_System_ID
534 *q++ = 0xfc; // private_data_byte
535 *q++ = 0xfc; // private_data_byte
536 }
537
538 val = 0xf000 | (q - program_info_length_ptr - 2);
539 program_info_length_ptr[0] = val >> 8;
540 program_info_length_ptr[1] = val;
541
542 for (i = 0; i < s->nb_streams; i++) {
543 AVStream *st = s->streams[i];
544 MpegTSWriteStream *ts_st = st->priv_data;
545 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
546 const char default_language[] = "und";
547 const char *language = lang && strlen(lang->value) >= 3 ? lang->value : default_language;
548 enum AVCodecID codec_id = st->codecpar->codec_id;
549
550 if (s->nb_programs) {
551 int k, found = 0;
552 AVProgram *program = service->program;
553
554 for (k = 0; k < program->nb_stream_indexes; k++)
555 if (program->stream_index[k] == i) {
556 found = 1;
557 break;
558 }
559
560 if (!found)
561 continue;
562 }
563
564 if (q - data > SECTION_LENGTH - 32) {
565 err = 1;
566 break;
567 }
568
569 stream_type = ts->m2ts_mode ? get_m2ts_stream_type(s, st) : get_dvb_stream_type(s, st);
570
571 *q++ = stream_type;
572 put16(&q, 0xe000 | ts_st->pid);
573 desc_length_ptr = q;
574 q += 2; /* patched after */
575
576 /* write optional descriptors here */
577 switch (st->codecpar->codec_type) {
578 case AVMEDIA_TYPE_AUDIO:
579 if (codec_id == AV_CODEC_ID_AC3)
580 put_registration_descriptor(&q, MKTAG('A', 'C', '-', '3'));
581 if (codec_id == AV_CODEC_ID_EAC3)
582 put_registration_descriptor(&q, MKTAG('E', 'A', 'C', '3'));
583 if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
584 if (codec_id == AV_CODEC_ID_AC3) {
585 DVBAC3Descriptor *dvb_ac3_desc = ts_st->dvb_ac3_desc;
586
587 *q++= AC3_DESCRIPTOR; // AC3 descriptor see A038 DVB SI
588 if (dvb_ac3_desc) {
589 int len = 1 +
590 !!(dvb_ac3_desc->component_type_flag) +
591 !!(dvb_ac3_desc->bsid_flag) +
592 !!(dvb_ac3_desc->mainid_flag) +
593 !!(dvb_ac3_desc->asvc_flag);
594
595 *q++ = len;
596 *q++ = dvb_ac3_desc->component_type_flag << 7 | dvb_ac3_desc->bsid_flag << 6 |
597 dvb_ac3_desc->mainid_flag << 5 | dvb_ac3_desc->asvc_flag << 4;
598
599 if (dvb_ac3_desc->component_type_flag) *q++ = dvb_ac3_desc->component_type;
600 if (dvb_ac3_desc->bsid_flag) *q++ = dvb_ac3_desc->bsid;
601 if (dvb_ac3_desc->mainid_flag) *q++ = dvb_ac3_desc->mainid;
602 if (dvb_ac3_desc->asvc_flag) *q++ = dvb_ac3_desc->asvc;
603 } else {
604 *q++=1; // 1 byte, all flags sets to 0
605 *q++=0; // omit all fields...
606 }
607 } else if (codec_id == AV_CODEC_ID_EAC3) {
608 *q++= ENHANCED_AC3_DESCRIPTOR; // EAC3 descriptor see A038 DVB SI
609 *q++=1; // 1 byte, all flags sets to 0
610 *q++=0; // omit all fields...
611 }
612 }
613 if (codec_id == AV_CODEC_ID_S302M)
614 put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
615 if (codec_id == AV_CODEC_ID_OPUS) {
616 int ch = st->codecpar->ch_layout.nb_channels;
617
618 /* 6 bytes registration descriptor, 4 bytes Opus audio descriptor */
619 if (q - data > SECTION_LENGTH - 6 - 4) {
620 err = 1;
621 break;
622 }
623
624 put_registration_descriptor(&q, MKTAG('O', 'p', 'u', 's'));
625
626 *q++ = DVB_EXTENSION_DESCRIPTOR;
627 *q++ = 2;
628 *q++ = 0x80;
629
630 if (st->codecpar->extradata && st->codecpar->extradata_size >= 19) {
631 if (st->codecpar->extradata[18] == 0 && ch <= 2) {
632 /* RTP mapping family */
633 *q++ = ch;
634 } else if (st->codecpar->extradata[18] == 1 && ch <= 8 &&
635 st->codecpar->extradata_size >= 21 + ch) {
636 static const uint8_t coupled_stream_counts[9] = {
637 1, 0, 1, 1, 2, 2, 2, 3, 3
638 };
639 static const uint8_t channel_map_a[8][8] = {
640 {0},
641 {0, 1},
642 {0, 2, 1},
643 {0, 1, 2, 3},
644 {0, 4, 1, 2, 3},
645 {0, 4, 1, 2, 3, 5},
646 {0, 4, 1, 2, 3, 5, 6},
647 {0, 6, 1, 2, 3, 4, 5, 7},
648 };
649 static const uint8_t channel_map_b[8][8] = {
650 {0},
651 {0, 1},
652 {0, 1, 2},
653 {0, 1, 2, 3},
654 {0, 1, 2, 3, 4},
655 {0, 1, 2, 3, 4, 5},
656 {0, 1, 2, 3, 4, 5, 6},
657 {0, 1, 2, 3, 4, 5, 6, 7},
658 };
659 /* Vorbis mapping family */
660
661 if (st->codecpar->extradata[19] == ch - coupled_stream_counts[ch] &&
662 st->codecpar->extradata[20] == coupled_stream_counts[ch] &&
663 memcmp(&st->codecpar->extradata[21], channel_map_a[ch - 1], ch) == 0) {
664 *q++ = ch;
665 } else if (ch >= 2 && st->codecpar->extradata[19] == ch &&
666 st->codecpar->extradata[20] == 0 &&
667 memcmp(&st->codecpar->extradata[21], channel_map_b[ch - 1], ch) == 0) {
668 *q++ = ch | 0x80;
669 } else {
670 /* Unsupported, could write an extended descriptor here */
671 av_log(s, AV_LOG_ERROR, "Unsupported Opus Vorbis-style channel mapping");
672 *q++ = 0xff;
673 }
674 } else {
675 /* Unsupported */
676 av_log(s, AV_LOG_ERROR, "Unsupported Opus channel mapping for family %d", st->codecpar->extradata[18]);
677 *q++ = 0xff;
678 }
679 } else if (ch <= 2) {
680 /* Assume RTP mapping family */
681 *q++ = ch;
682 } else {
683 /* Unsupported */
684 av_log(s, AV_LOG_ERROR, "Unsupported Opus channel mapping");
685 *q++ = 0xff;
686 }
687 }
688
689 if (language != default_language ||
690 st->disposition & (AV_DISPOSITION_CLEAN_EFFECTS |
691 AV_DISPOSITION_HEARING_IMPAIRED |
692 AV_DISPOSITION_VISUAL_IMPAIRED)) {
693 const char *p, *next;
694 uint8_t *len_ptr;
695
696 *q++ = ISO_639_LANGUAGE_DESCRIPTOR;
697 len_ptr = q++;
698 *len_ptr = 0;
699
700 for (p = next = language; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
701 if (q - data > SECTION_LENGTH - 4) {
702 err = 1;
703 break;
704 }
705 next = strchr(p, ',');
706 if (strlen(p) != 3 && (!next || next != p + 3))
707 continue; /* not a 3-letter code */
708
709 *q++ = *p++;
710 *q++ = *p++;
711 *q++ = *p++;
712
713 if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
714 *q++ = 0x01;
715 else if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
716 *q++ = 0x02;
717 else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
718 *q++ = 0x03;
719 else
720 *q++ = 0; /* undefined type */
721
722 *len_ptr += 4;
723 }
724
725 if (*len_ptr == 0)
726 q -= 2; /* no language codes were written */
727 }
728 break;
729 case AVMEDIA_TYPE_SUBTITLE:
730 if (codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
731 uint8_t *len_ptr;
732 int extradata_copied = 0;
733
734 *q++ = SUBTITLING_DESCRIPTOR; /* subtitling_descriptor */
735 len_ptr = q++;
736
737 while (strlen(language) >= 3) {
738 if (sizeof(data) - (q - data) < 8) { /* 8 bytes per DVB subtitle substream data */
739 err = 1;
740 break;
741 }
742 *q++ = *language++;
743 *q++ = *language++;
744 *q++ = *language++;
745 /* Skip comma */
746 if (*language != '\0')
747 language++;
748
749 if (st->codecpar->extradata_size - extradata_copied >= 5) {
750 *q++ = st->codecpar->extradata[extradata_copied + 4]; /* subtitling_type */
751 memcpy(q, st->codecpar->extradata + extradata_copied, 4); /* composition_page_id and ancillary_page_id */
752 extradata_copied += 5;
753 q += 4;
754 } else {
755 /* subtitling_type:
756 * 0x10 - normal with no monitor aspect ratio criticality
757 * 0x20 - for the hard of hearing with no monitor aspect ratio criticality */
758 *q++ = (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED) ? 0x20 : 0x10;
759 if ((st->codecpar->extradata_size == 4) && (extradata_copied == 0)) {
760 /* support of old 4-byte extradata format */
761 memcpy(q, st->codecpar->extradata, 4); /* composition_page_id and ancillary_page_id */
762 extradata_copied += 4;
763 q += 4;
764 } else {
765 put16(&q, 1); /* composition_page_id */
766 put16(&q, 1); /* ancillary_page_id */
767 }
768 }
769 }
770
771 *len_ptr = q - len_ptr - 1;
772 } else if (codec_id == AV_CODEC_ID_DVB_TELETEXT) {
773 uint8_t *len_ptr = NULL;
774 int extradata_copied = 0;
775
776 /* The descriptor tag. teletext_descriptor */
777 *q++ = TELETEXT_DESCRIPTOR;
778 len_ptr = q++;
779
780 while (strlen(language) >= 3 && q - data < sizeof(data) - 6) {
781 *q++ = *language++;
782 *q++ = *language++;
783 *q++ = *language++;
784 /* Skip comma */
785 if (*language != '\0')
786 language++;
787
788 if (st->codecpar->extradata_size - 1 > extradata_copied) {
789 memcpy(q, st->codecpar->extradata + extradata_copied, 2);
790 extradata_copied += 2;
791 q += 2;
792 } else {
793 /* The Teletext descriptor:
794 * teletext_type: This 5-bit field indicates the type of Teletext page indicated. (0x01 Initial Teletext page)
795 * teletext_magazine_number: This is a 3-bit field which identifies the magazine number.
796 * teletext_page_number: This is an 8-bit field giving two 4-bit hex digits identifying the page number. */
797 *q++ = 0x08;
798 *q++ = 0x00;
799 }
800 }
801
802 *len_ptr = q - len_ptr - 1;
803 } else if (codec_id == AV_CODEC_ID_ARIB_CAPTION) {
804 if (put_arib_caption_descriptor(s, &q, st->codecpar) < 0)
805 break;
806 }
807 break;
808 case AVMEDIA_TYPE_VIDEO:
809 if (stream_type == STREAM_TYPE_VIDEO_DIRAC) {
810 put_registration_descriptor(&q, MKTAG('d', 'r', 'a', 'c'));
811 } else if (stream_type == STREAM_TYPE_VIDEO_VC1) {
812 put_registration_descriptor(&q, MKTAG('V', 'C', '-', '1'));
813 } else if (stream_type == STREAM_TYPE_VIDEO_HEVC && s->strict_std_compliance <= FF_COMPLIANCE_NORMAL) {
814 put_registration_descriptor(&q, MKTAG('H', 'E', 'V', 'C'));
815 } else if (stream_type == STREAM_TYPE_VIDEO_CAVS || stream_type == STREAM_TYPE_VIDEO_AVS2 ||
816 stream_type == STREAM_TYPE_VIDEO_AVS3) {
817 put_registration_descriptor(&q, MKTAG('A', 'V', 'S', 'V'));
818 }
819 break;
820 case AVMEDIA_TYPE_DATA:
821 if (codec_id == AV_CODEC_ID_SMPTE_KLV) {
822 put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A'));
823 } else if (codec_id == AV_CODEC_ID_SMPTE_2038) {
824 put_registration_descriptor(&q, MKTAG('V', 'A', 'N', 'C'));
825 } else if (codec_id == AV_CODEC_ID_TIMED_ID3) {
826 const char *tag = "ID3 ";
827 *q++ = METADATA_DESCRIPTOR;
828 *q++ = 13;
829 put16(&q, 0xffff); /* metadata application format */
830 putbuf(&q, tag, strlen(tag));
831 *q++ = 0xff; /* metadata format */
832 putbuf(&q, tag, strlen(tag));
833 *q++ = 0; /* metadata service ID */
834 *q++ = 0xF; /* metadata_locator_record_flag|MPEG_carriage_flags|reserved */
835 }
836 break;
837 }
838
839 val = 0xf000 | (q - desc_length_ptr - 2);
840 desc_length_ptr[0] = val >> 8;
841 desc_length_ptr[1] = val;
842 }
843
844 if (err)
845 av_log(s, AV_LOG_ERROR,
846 "The PMT section cannot fit stream %d and all following streams.\n"
847 "Try reducing the number of languages in the audio streams "
848 "or the total number of streams.\n", i);
849
850 mpegts_write_section1(&service->pmt, PMT_TID, service->sid, ts->tables_version, 0, 0,
851 data, q - data);
852 return 0;
853}
854
855static void mpegts_write_sdt(AVFormatContext *s)
856{
857 MpegTSWrite *ts = s->priv_data;
858 MpegTSService *service;
859 uint8_t data[SECTION_LENGTH], *q, *desc_list_len_ptr, *desc_len_ptr;
860 int i, running_status, free_ca_mode, val;
861
862 q = data;
863 put16(&q, ts->original_network_id);
864 *q++ = 0xff;
865 for (i = 0; i < ts->nb_services; i++) {
866 service = ts->services[i];
867 put16(&q, service->sid);
868 *q++ = 0xfc | 0x00; /* currently no EIT info */
869 desc_list_len_ptr = q;
870 q += 2;
871 running_status = 4; /* running */
872 free_ca_mode = 0;
873
874 /* write only one descriptor for the service name and provider */
875 *q++ = SERVICE_DESCRIPTOR;
876 desc_len_ptr = q;
877 q++;
878 *q++ = ts->service_type;
879 putbuf(&q, service->provider_name, service->provider_name[0] + 1);
880 putbuf(&q, service->name, service->name[0] + 1);
881 desc_len_ptr[0] = q - desc_len_ptr - 1;
882
883 /* fill descriptor length */
884 val = (running_status << 13) | (free_ca_mode << 12) |
885 (q - desc_list_len_ptr - 2);
886 desc_list_len_ptr[0] = val >> 8;
887 desc_list_len_ptr[1] = val;
888 }
889 mpegts_write_section1(&ts->sdt, SDT_TID, ts->transport_stream_id, ts->tables_version, 0, 0,
890 data, q - data);
891}
892
893static void mpegts_write_nit(AVFormatContext *s)
894{
895 MpegTSWrite *ts = s->priv_data;
896 uint8_t data[SECTION_LENGTH], *q, *desc_len_ptr, *loop_len_ptr;
897
898 q = data;
899
900 //network_descriptors_length
901 put16(&q, 0xf000 | (ts->provider_name[0] + 2));
902
903 //network_name_descriptor
904 *q++ = NETWORK_NAME_DESCRIPTOR;
905 putbuf(&q, ts->provider_name, ts->provider_name[0] + 1);
906
907 //transport_stream_loop_length
908 loop_len_ptr = q;
909 q += 2;
910
911 put16(&q, ts->transport_stream_id);
912 put16(&q, ts->original_network_id);
913
914 //transport_descriptors_length
915 desc_len_ptr = q;
916 q += 2;
917
918 //service_list_descriptor
919 *q++ = SERVICE_LIST_DESCRIPTOR;
920 *q++ = 3 * ts->nb_services;
921 for (int i = 0; i < ts->nb_services; i++) {
922 put16(&q, ts->services[i]->sid);
923 *q++ = ts->service_type;
924 }
925
926 //calculate lengths
927 put16(&desc_len_ptr, 0xf000 | q - (desc_len_ptr + 2));
928 put16(&loop_len_ptr, 0xf000 | q - (loop_len_ptr + 2));
929
930 mpegts_write_section1(&ts->nit, NIT_TID, ts->original_network_id, ts->tables_version, 0, 0,
931 data, q - data);
932}
933
934/* This stores a string in buf with the correct encoding and also sets the
935 * first byte as the length. !str is accepted for an empty string.
936 * If the string is already encoded, invalid UTF-8 or has no multibyte sequence
937 * then we keep it as is, otherwise we signal UTF-8 encoding. */
938static int encode_str8(uint8_t *buf, const char *str)
939{
940 size_t str_len;
941 if (!str)
942 str = "";
943 str_len = strlen(str);
944 if (str[0] && (unsigned)str[0] >= 0x20) { /* Make sure the string is not already encoded. */
945 const uint8_t *q = str;
946 int has_multibyte = 0;
947 while (*q) {
948 uint32_t code;
949 GET_UTF8(code, *q++, goto invalid;) /* Is it valid UTF-8? */
950 has_multibyte |= (code > 127); /* Does it have multibyte UTF-8 chars in it? */
951 }
952 if (has_multibyte) { /* If we have multibyte chars and valid UTF-8, then encode as such! */
953 if (str_len > 254)
954 return AVERROR(EINVAL);
955 buf[0] = str_len + 1;
956 buf[1] = 0x15;
957 memcpy(&buf[2], str, str_len);
958 return 0;
959 }
960 }
961invalid:
962 /* Otherwise let's just encode the string as is! */
963 if (str_len > 255)
964 return AVERROR(EINVAL);
965 buf[0] = str_len;
966 memcpy(&buf[1], str, str_len);
967 return 0;
968}
969
970static int64_t get_pcr(const MpegTSWrite *ts)
971{
972 return av_rescale(ts->total_size + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
973 ts->first_pcr;
974}
975
976static void write_packet(AVFormatContext *s, const uint8_t *packet)
977{
978 MpegTSWrite *ts = s->priv_data;
979 if (ts->m2ts_mode) {
980 int64_t pcr = get_pcr(s->priv_data);
981 uint32_t tp_extra_header = pcr % 0x3fffffff;
982 tp_extra_header = AV_RB32(&tp_extra_header);
983 avio_write(s->pb, (unsigned char *) &tp_extra_header,
984 sizeof(tp_extra_header));
985 }
986 avio_write(s->pb, packet, TS_PACKET_SIZE);
987 ts->total_size += TS_PACKET_SIZE;
988}
989
990static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
991{
992 AVFormatContext *ctx = s->opaque;
993 write_packet(ctx, packet);
994}
995
996static MpegTSService *mpegts_add_service(AVFormatContext *s, int sid,
997 const AVDictionary *metadata,
998 AVProgram *program)
999{
1000 MpegTSWrite *ts = s->priv_data;
1001 MpegTSService *service;
1002 AVDictionaryEntry *title, *provider;
1003 char default_service_name[32];
1004 const char *service_name;
1005 const char *provider_name;
1006
1007 title = av_dict_get(metadata, "service_name", NULL, 0);
1008 if (!title)
1009 title = av_dict_get(metadata, "title", NULL, 0);
1010 snprintf(default_service_name, sizeof(default_service_name), "%s%02d", DEFAULT_SERVICE_NAME, ts->nb_services + 1);
1011 service_name = title ? title->value : default_service_name;
1012 provider = av_dict_get(metadata, "service_provider", NULL, 0);
1013 provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
1014
1015 service = av_mallocz(sizeof(MpegTSService));
1016 if (!service)
1017 return NULL;
1018 service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
1019 service->sid = sid;
1020 service->pcr_pid = 0x1fff;
1021 if (encode_str8(service->provider_name, provider_name) < 0 ||
1022 encode_str8(service->name, service_name) < 0) {
1023 av_log(s, AV_LOG_ERROR, "Too long service or provider name\n");
1024 goto fail;
1025 }
1026 ts->sdt.remaining -= 10 + service->provider_name[0] + service->name[0];
1027 if (ts->sdt.remaining < 0)
1028 goto fail;
1029
1030 if (av_dynarray_add_nofree(&ts->services, &ts->nb_services, service) < 0)
1031 goto fail;
1032
1033 service->pmt.write_packet = section_write_packet;
1034 service->pmt.opaque = s;
1035 service->pmt.cc = 15;
1036 service->pmt.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1037 service->program = program;
1038
1039 return service;
1040fail:
1041 av_free(service);
1042 return NULL;
1043}
1044
1045static void enable_pcr_generation_for_stream(AVFormatContext *s, AVStream *pcr_st)
1046{
1047 MpegTSWrite *ts = s->priv_data;
1048 MpegTSWriteStream *ts_st = pcr_st->priv_data;
1049
1050 if (ts->mux_rate > 1 || ts->pcr_period_ms >= 0) {
1051 int pcr_period_ms = ts->pcr_period_ms == -1 ? PCR_RETRANS_TIME : ts->pcr_period_ms;
1052 ts_st->pcr_period = av_rescale(pcr_period_ms, PCR_TIME_BASE, 1000);
1053 } else {
1054 /* By default, for VBR we select the highest multiple of frame duration which is less than 100 ms. */
1055 int64_t frame_period = 0;
1056 if (pcr_st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1057 int frame_size = av_get_audio_frame_duration2(pcr_st->codecpar, 0);
1058 if (!frame_size) {
1059 av_log(s, AV_LOG_WARNING, "frame size not set\n");
1060 frame_size = 512;
1061 }
1062 frame_period = av_rescale_rnd(frame_size, PCR_TIME_BASE, pcr_st->codecpar->sample_rate, AV_ROUND_UP);
1063 } else if (pcr_st->avg_frame_rate.num) {
1064 frame_period = av_rescale_rnd(pcr_st->avg_frame_rate.den, PCR_TIME_BASE, pcr_st->avg_frame_rate.num, AV_ROUND_UP);
1065 }
1066 if (frame_period > 0 && frame_period <= PCR_TIME_BASE / 10)
1067 ts_st->pcr_period = frame_period * (PCR_TIME_BASE / 10 / frame_period);
1068 else
1069 ts_st->pcr_period = 1;
1070 }
1071
1072 // output a PCR as soon as possible
1073 ts_st->last_pcr = ts->first_pcr - ts_st->pcr_period;
1074}
1075
1076static void select_pcr_streams(AVFormatContext *s)
1077{
1078 MpegTSWrite *ts = s->priv_data;
1079
1080 for (int i = 0; i < ts->nb_services; i++) {
1081 MpegTSService *service = ts->services[i];
1082 AVStream *pcr_st = NULL;
1083 AVProgram *program = service->program;
1084 int nb_streams = program ? program->nb_stream_indexes : s->nb_streams;
1085
1086 for (int j = 0; j < nb_streams; j++) {
1087 AVStream *st = s->streams[program ? program->stream_index[j] : j];
1088 if (!pcr_st ||
1089 pcr_st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1090 {
1091 pcr_st = st;
1092 }
1093 }
1094
1095 if (ts->pcr_pid >= FIRST_OTHER_PID) {
1096 int pcr_period_ms = ts->pcr_period_ms == -1 ? PCR_RETRANS_TIME : ts->pcr_period_ms;
1097 service->pcr_pid = ts->pcr_pid;
1098 ts->pcr_stream_pcr_period = av_rescale(pcr_period_ms, PCR_TIME_BASE, 1000);
1099 ts->pcr_stream_last_pcr = ts->first_pcr - ts->pcr_stream_pcr_period;
1100 av_log(s, AV_LOG_VERBOSE, "service %i using separate PCR pid=%d, pcr_period=%"PRId64"ms\n",
1101 service->sid, ts->pcr_pid, (int64_t)pcr_period_ms);
1102 } else if (pcr_st) {
1103 MpegTSWriteStream *ts_st = pcr_st->priv_data;
1104 service->pcr_pid = ts_st->pid;
1105 enable_pcr_generation_for_stream(s, pcr_st);
1106 av_log(s, AV_LOG_VERBOSE, "service %i using PCR in pid=%i, pcr_period=%"PRId64"ms\n",
1107 service->sid, service->pcr_pid, av_rescale(ts_st->pcr_period, 1000, PCR_TIME_BASE));
1108 }
1109 }
1110}
1111
1112static int mpegts_init(AVFormatContext *s)
1113{
1114 MpegTSWrite *ts = s->priv_data;
1115 AVDictionaryEntry *provider;
1116 const char *provider_name;
1117 int i, j;
1118 int ret;
1119
1120 if (ts->m2ts_mode == -1) {
1121 if (av_match_ext(s->url, "m2ts")) {
1122 ts->m2ts_mode = 1;
1123 } else {
1124 ts->m2ts_mode = 0;
1125 }
1126 }
1127
1128 ts->m2ts_video_pid = M2TS_VIDEO_PID;
1129 ts->m2ts_audio_pid = M2TS_AUDIO_START_PID;
1130 ts->m2ts_pgssub_pid = M2TS_PGSSUB_START_PID;
1131 ts->m2ts_textsub_pid = M2TS_TEXTSUB_PID;
1132
1133 if (ts->m2ts_mode) {
1134 ts->pmt_start_pid = M2TS_PMT_PID;
1135 if (s->nb_programs > 1) {
1136 av_log(s, AV_LOG_ERROR, "Only one program is allowed in m2ts mode!\n");
1137 return AVERROR(EINVAL);
1138 }
1139 }
1140
1141 if (s->max_delay < 0) /* Not set by the caller */
1142 s->max_delay = 0;
1143
1144 if (ts->pcr_pid != -1 && ts->pcr_pid < FIRST_OTHER_PID) {
1145 av_log(s, AV_LOG_ERROR, "Invalid PCR PID %d, must be in range [%d, %d]\n",
1146 ts->pcr_pid, FIRST_OTHER_PID, LAST_OTHER_PID);
1147 return AVERROR(EINVAL);
1148 }
1149
1150 // round up to a whole number of TS packets
1151 ts->pes_payload_size = (ts->pes_payload_size + 14 + 183) / 184 * 184 - 14;
1152
1153 ts->sdt.remaining = SECTION_LENGTH - 3;
1154
1155 if (!s->nb_programs) {
1156 /* allocate a single DVB service */
1157 if (!mpegts_add_service(s, ts->service_id, s->metadata, NULL))
1158 return AVERROR(ENOMEM);
1159 } else {
1160 for (i = 0; i < s->nb_programs; i++) {
1161 AVProgram *program = s->programs[i];
1162 if (!mpegts_add_service(s, program->id, program->metadata, program))
1163 return AVERROR(ENOMEM);
1164 }
1165 }
1166
1167 ts->pat.pid = PAT_PID;
1168 /* Initialize at 15 so that it wraps and is equal to 0 for the
1169 * first packet we write. */
1170 ts->pat.cc = 15;
1171 ts->pat.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1172 ts->pat.write_packet = section_write_packet;
1173 ts->pat.opaque = s;
1174
1175 ts->sdt.pid = SDT_PID;
1176 ts->sdt.cc = 15;
1177 ts->sdt.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1178 ts->sdt.write_packet = section_write_packet;
1179 ts->sdt.opaque = s;
1180
1181 ts->nit.pid = NIT_PID;
1182 ts->nit.cc = 15;
1183 ts->nit.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1184 ts->nit.write_packet = section_write_packet;
1185 ts->nit.opaque = s;
1186
1187 ts->pkt = ffformatcontext(s)->pkt;
1188
1189 /* assign pids to each stream */
1190 for (i = 0; i < s->nb_streams; i++) {
1191 AVStream *st = s->streams[i];
1192 MpegTSWriteStream *ts_st;
1193
1194 ts_st = av_mallocz(sizeof(MpegTSWriteStream));
1195 if (!ts_st) {
1196 return AVERROR(ENOMEM);
1197 }
1198 st->priv_data = ts_st;
1199
1200 avpriv_set_pts_info(st, 33, 1, 90000);
1201
1202 ts_st->payload = av_mallocz(ts->pes_payload_size);
1203 if (!ts_st->payload) {
1204 return AVERROR(ENOMEM);
1205 }
1206
1207 /* MPEG pid values < 16 are reserved. Applications which set st->id in
1208 * this range are assigned a calculated pid. */
1209 if (st->id < 16) {
1210 if (ts->m2ts_mode) {
1211 switch (st->codecpar->codec_type) {
1212 case AVMEDIA_TYPE_VIDEO:
1213 ts_st->pid = ts->m2ts_video_pid++;
1214 break;
1215 case AVMEDIA_TYPE_AUDIO:
1216 ts_st->pid = ts->m2ts_audio_pid++;
1217 break;
1218 case AVMEDIA_TYPE_SUBTITLE:
1219 switch (st->codecpar->codec_id) {
1220 case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
1221 ts_st->pid = ts->m2ts_pgssub_pid++;
1222 break;
1223 case AV_CODEC_ID_HDMV_TEXT_SUBTITLE:
1224 ts_st->pid = ts->m2ts_textsub_pid++;
1225 break;
1226 }
1227 break;
1228 }
1229 if (ts->m2ts_video_pid > M2TS_VIDEO_PID + 1 ||
1230 ts->m2ts_audio_pid > M2TS_AUDIO_START_PID + 32 ||
1231 ts->m2ts_pgssub_pid > M2TS_PGSSUB_START_PID + 32 ||
1232 ts->m2ts_textsub_pid > M2TS_TEXTSUB_PID + 1 ||
1233 ts_st->pid < 16) {
1234 av_log(s, AV_LOG_ERROR, "Cannot automatically assign PID for stream %d\n", st->index);
1235 return AVERROR(EINVAL);
1236 }
1237 } else {
1238 ts_st->pid = ts->start_pid + i;
1239 }
1240 } else {
1241 ts_st->pid = st->id;
1242 }
1243 if (ts_st->pid >= 0x1FFF) {
1244 av_log(s, AV_LOG_ERROR,
1245 "Invalid stream id %d, must be less than 8191\n", st->id);
1246 return AVERROR(EINVAL);
1247 }
1248 for (j = 0; j < ts->nb_services; j++) {
1249 if (ts->services[j]->pmt.pid > LAST_OTHER_PID) {
1250 av_log(s, AV_LOG_ERROR,
1251 "Invalid PMT PID %d, must be less than %d\n", ts->services[j]->pmt.pid, LAST_OTHER_PID + 1);
1252 return AVERROR(EINVAL);
1253 }
1254 if (ts_st->pid == ts->services[j]->pmt.pid) {
1255 av_log(s, AV_LOG_ERROR, "PID %d cannot be both elementary and PMT PID\n", ts_st->pid);
1256 return AVERROR(EINVAL);
1257 }
1258 }
1259 for (j = 0; j < i; j++) {
1260 MpegTSWriteStream *ts_st_prev = s->streams[j]->priv_data;
1261 if (ts_st_prev->pid == ts_st->pid) {
1262 av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
1263 return AVERROR(EINVAL);
1264 }
1265 }
1266 ts_st->payload_pts = AV_NOPTS_VALUE;
1267 ts_st->payload_dts = AV_NOPTS_VALUE;
1268 ts_st->cc = 15;
1269 ts_st->discontinuity = ts->flags & MPEGTS_FLAG_DISCONT;
1270 if (st->codecpar->codec_id == AV_CODEC_ID_AAC &&
1271 st->codecpar->extradata_size > 0) {
1272 AVStream *ast;
1273 ts_st->amux = avformat_alloc_context();
1274 if (!ts_st->amux) {
1275 return AVERROR(ENOMEM);
1276 }
1277 ts_st->amux->oformat =
1278 av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts",
1279 NULL, NULL);
1280 if (!ts_st->amux->oformat) {
1281 return AVERROR(EINVAL);
1282 }
1283 if (!(ast = avformat_new_stream(ts_st->amux, NULL))) {
1284 return AVERROR(ENOMEM);
1285 }
1286 ret = avcodec_parameters_copy(ast->codecpar, st->codecpar);
1287 if (ret != 0)
1288 return ret;
1289 ast->time_base = st->time_base;
1290 ret = avformat_write_header(ts_st->amux, NULL);
1291 if (ret < 0)
1292 return ret;
1293 }
1294 if (st->codecpar->codec_id == AV_CODEC_ID_OPUS) {
1295 ts_st->opus_pending_trim_start = st->codecpar->initial_padding * 48000 / st->codecpar->sample_rate;
1296 }
1297 }
1298
1299 if (ts->copyts < 1)
1300 ts->first_pcr = av_rescale(s->max_delay, PCR_TIME_BASE, AV_TIME_BASE);
1301
1302 select_pcr_streams(s);
1303
1304 ts->last_pat_ts = AV_NOPTS_VALUE;
1305 ts->last_sdt_ts = AV_NOPTS_VALUE;
1306 ts->last_nit_ts = AV_NOPTS_VALUE;
1307 ts->pat_period = av_rescale(ts->pat_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1308 ts->sdt_period = av_rescale(ts->sdt_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1309 ts->nit_period = av_rescale(ts->nit_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1310
1311 /* assign provider name */
1312 provider = av_dict_get(s->metadata, "service_provider", NULL, 0);
1313 provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
1314 if (encode_str8(ts->provider_name, provider_name) < 0) {
1315 av_log(s, AV_LOG_ERROR, "Too long provider name\n");
1316 return AVERROR(EINVAL);
1317 }
1318
1319 if (ts->mux_rate == 1)
1320 av_log(s, AV_LOG_VERBOSE, "muxrate VBR, ");
1321 else
1322 av_log(s, AV_LOG_VERBOSE, "muxrate %d, ", ts->mux_rate);
1323 av_log(s, AV_LOG_VERBOSE,
1324 "sdt every %"PRId64" ms, pat/pmt every %"PRId64" ms",
1325 av_rescale(ts->sdt_period, 1000, PCR_TIME_BASE),
1326 av_rescale(ts->pat_period, 1000, PCR_TIME_BASE));
1327 if (ts->flags & MPEGTS_FLAG_NIT)
1328 av_log(s, AV_LOG_VERBOSE, ", nit every %"PRId64" ms", av_rescale(ts->nit_period, 1000, PCR_TIME_BASE));
1329 av_log(s, AV_LOG_VERBOSE, "\n");
1330
1331 return 0;
1332}
1333
1334/* send SDT, NIT, PAT and PMT tables regularly */
1335static void retransmit_si_info(AVFormatContext *s, int force_pat, int force_sdt, int force_nit, int64_t pcr)
1336{
1337 MpegTSWrite *ts = s->priv_data;
1338 int i;
1339
1340 if ((pcr != AV_NOPTS_VALUE && ts->last_sdt_ts == AV_NOPTS_VALUE) ||
1341 (pcr != AV_NOPTS_VALUE && pcr - ts->last_sdt_ts >= ts->sdt_period) ||
1342 force_sdt
1343 ) {
1344 if (pcr != AV_NOPTS_VALUE)
1345 ts->last_sdt_ts = FFMAX(pcr, ts->last_sdt_ts);
1346 mpegts_write_sdt(s);
1347 }
1348 if ((pcr != AV_NOPTS_VALUE && ts->last_pat_ts == AV_NOPTS_VALUE) ||
1349 (pcr != AV_NOPTS_VALUE && pcr - ts->last_pat_ts >= ts->pat_period) ||
1350 force_pat) {
1351 if (pcr != AV_NOPTS_VALUE)
1352 ts->last_pat_ts = FFMAX(pcr, ts->last_pat_ts);
1353 mpegts_write_pat(s);
1354 for (i = 0; i < ts->nb_services; i++)
1355 mpegts_write_pmt(s, ts->services[i]);
1356 }
1357 if ((pcr != AV_NOPTS_VALUE && ts->last_nit_ts == AV_NOPTS_VALUE) ||
1358 (pcr != AV_NOPTS_VALUE && pcr - ts->last_nit_ts >= ts->nit_period) ||
1359 force_nit
1360 ) {
1361 if (pcr != AV_NOPTS_VALUE)
1362 ts->last_nit_ts = FFMAX(pcr, ts->last_nit_ts);
1363 if (ts->flags & MPEGTS_FLAG_NIT)
1364 mpegts_write_nit(s);
1365 }
1366}
1367
1368static int write_pcr_bits(uint8_t *buf, int64_t pcr)
1369{
1370 int64_t pcr_low = pcr % SYSTEM_CLOCK_FREQUENCY_DIVISOR, pcr_high = pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1371
1372 *buf++ = pcr_high >> 25;
1373 *buf++ = pcr_high >> 17;
1374 *buf++ = pcr_high >> 9;
1375 *buf++ = pcr_high >> 1;
1376 *buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e;
1377 *buf++ = pcr_low;
1378
1379 return 6;
1380}
1381
1382/* Write a single null transport stream packet */
1383static void mpegts_insert_null_packet(AVFormatContext *s)
1384{
1385 uint8_t *q;
1386 uint8_t buf[TS_PACKET_SIZE];
1387
1388 q = buf;
1389 *q++ = SYNC_BYTE;
1390 *q++ = 0x00 | (NULL_PID >> 8);
1391 *q++ = NULL_PID & 0xff;
1392 *q++ = 0x10;
1393 memset(q, STUFFING_BYTE, TS_PACKET_SIZE - (q - buf)); /* data_bytes may be assigned any value */
1394 write_packet(s, buf);
1395}
1396
1397/* Write a single transport stream packet with a PCR and no payload */
1398static void mpegts_insert_pcr_only_pid(AVFormatContext *s, int pid, int cc,
1399 int discontinuity)
1400{
1401 MpegTSWrite *ts = s->priv_data;
1402 uint8_t *q;
1403 uint8_t buf[TS_PACKET_SIZE];
1404
1405 q = buf;
1406 *q++ = SYNC_BYTE;
1407 *q++ = (pid >> 8) & 0x1f;
1408 *q++ = pid & 0xff;
1409 *q++ = 0x20 | (cc & 0xf); /* Adaptation only */
1410 /* Continuity Count field does not increment (see 13818-1 section 2.4.3.3) */
1411 *q++ = TS_PACKET_SIZE - 5; /* Adaptation Field Length */
1412 *q++ = 0x10; /* Adaptation flags: PCR present */
1413 if (discontinuity)
1414 q[-1] |= 0x80;
1415
1416 /* PCR coded into 6 bytes */
1417 q += write_pcr_bits(q, get_pcr(ts));
1418
1419 /* stuffing bytes */
1420 memset(q, STUFFING_BYTE, TS_PACKET_SIZE - (q - buf));
1421 write_packet(s, buf);
1422}
1423
1424static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
1425{
1426 MpegTSWriteStream *ts_st = st->priv_data;
1427 mpegts_insert_pcr_only_pid(s, ts_st->pid, ts_st->cc, ts_st->discontinuity);
1428 ts_st->discontinuity = 0;
1429}
1430
1431static void write_pts(uint8_t *q, int fourbits, int64_t pts)
1432{
1433 int val;
1434
1435 val = fourbits << 4 | (((pts >> 30) & 0x07) << 1) | 1;
1436 *q++ = val;
1437 val = (((pts >> 15) & 0x7fff) << 1) | 1;
1438 *q++ = val >> 8;
1439 *q++ = val;
1440 val = (((pts) & 0x7fff) << 1) | 1;
1441 *q++ = val >> 8;
1442 *q++ = val;
1443}
1444
1445/* Set an adaptation field flag in an MPEG-TS packet*/
1446static void set_af_flag(uint8_t *pkt, int flag)
1447{
1448 // expect at least one flag to set
1449 av_assert0(flag);
1450
1451 if ((pkt[3] & 0x20) == 0) {
1452 // no AF yet, set adaptation field flag
1453 pkt[3] |= 0x20;
1454 // 1 byte length, no flags
1455 pkt[4] = 1;
1456 pkt[5] = 0;
1457 }
1458 pkt[5] |= flag;
1459}
1460
1461/* Extend the adaptation field by size bytes */
1462static void extend_af(uint8_t *pkt, int size)
1463{
1464 // expect already existing adaptation field
1465 av_assert0(pkt[3] & 0x20);
1466 pkt[4] += size;
1467}
1468
1469/* Get a pointer to MPEG-TS payload (right after TS packet header) */
1470static uint8_t *get_ts_payload_start(uint8_t *pkt)
1471{
1472 if (pkt[3] & 0x20)
1473 return pkt + 5 + pkt[4];
1474 else
1475 return pkt + 4;
1476}
1477
1478static int get_pes_stream_id(AVFormatContext *s, AVStream *st, int stream_id, int *async)
1479{
1480 MpegTSWrite *ts = s->priv_data;
1481 *async = 0;
1482 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1483 if (st->codecpar->codec_id == AV_CODEC_ID_DIRAC)
1484 return STREAM_ID_EXTENDED_STREAM_ID;
1485 else
1486 return STREAM_ID_VIDEO_STREAM_0;
1487 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1488 (st->codecpar->codec_id == AV_CODEC_ID_MP2 ||
1489 st->codecpar->codec_id == AV_CODEC_ID_MP3 ||
1490 st->codecpar->codec_id == AV_CODEC_ID_AAC)) {
1491 return STREAM_ID_AUDIO_STREAM_0;
1492 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1493 st->codecpar->codec_id == AV_CODEC_ID_AC3 &&
1494 ts->m2ts_mode) {
1495 return STREAM_ID_EXTENDED_STREAM_ID;
1496 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA &&
1497 st->codecpar->codec_id == AV_CODEC_ID_TIMED_ID3) {
1498 return STREAM_ID_PRIVATE_STREAM_1;
1499 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
1500 if (st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV &&
1501 stream_id == STREAM_ID_PRIVATE_STREAM_1) /* asynchronous KLV */
1502 *async = 1;
1503 return stream_id != -1 ? stream_id : STREAM_ID_METADATA_STREAM;
1504 } else {
1505 return STREAM_ID_PRIVATE_STREAM_1;
1506 }
1507}
1508
1509/* Add a PES header to the front of the payload, and segment into an integer
1510 * number of TS packets. The final TS packet is padded using an oversized
1511 * adaptation header to exactly fill the last TS packet.
1512 * NOTE: 'payload' contains a complete PES payload. */
1513static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
1514 const uint8_t *payload, int payload_size,
1515 int64_t pts, int64_t dts, int key, int stream_id)
1516{
1517 MpegTSWriteStream *ts_st = st->priv_data;
1518 MpegTSWrite *ts = s->priv_data;
1519 uint8_t buf[TS_PACKET_SIZE];
1520 uint8_t *q;
1521 int val, is_start, len, header_len, write_pcr, flags;
1522 int afc_len, stuffing_len;
1523 int is_dvb_subtitle = (st->codecpar->codec_id == AV_CODEC_ID_DVB_SUBTITLE);
1524 int is_dvb_teletext = (st->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT);
1525 int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE);
1526 int force_pat = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && key && !ts_st->prev_payload_key;
1527 int force_sdt = 0;
1528 int force_nit = 0;
1529
1530 av_assert0(ts_st->payload != buf || st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO);
1531 if (ts->flags & MPEGTS_FLAG_PAT_PMT_AT_FRAMES && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1532 force_pat = 1;
1533 }
1534
1535 if (ts->flags & MPEGTS_FLAG_REEMIT_PAT_PMT) {
1536 force_pat = 1;
1537 force_sdt = 1;
1538 force_nit = 1;
1539 ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT;
1540 }
1541
1542 is_start = 1;
1543 while (payload_size > 0) {
1544 int64_t pcr = AV_NOPTS_VALUE;
1545 if (ts->mux_rate > 1)
1546 pcr = get_pcr(ts);
1547 else if (dts != AV_NOPTS_VALUE)
1548 pcr = (dts - delay) * SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1549
1550 retransmit_si_info(s, force_pat, force_sdt, force_nit, pcr);
1551 force_pat = 0;
1552 force_sdt = 0;
1553 force_nit = 0;
1554
1555 write_pcr = 0;
1556 if (ts->mux_rate > 1) {
1557 /* Send PCR packets for all PCR streams if needed */
1558 pcr = get_pcr(ts);
1559 if (ts->pcr_pid >= FIRST_OTHER_PID) {
1560 /* Dedicated PCR PID: send adaptation-only packets on that PID */
1561 if (pcr - ts->pcr_stream_last_pcr >= ts->pcr_stream_pcr_period) {
1562 ts->pcr_stream_last_pcr = FFMAX(pcr - ts->pcr_stream_pcr_period, ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period);
1563 mpegts_insert_pcr_only_pid(s, ts->pcr_pid, 0, 0);
1564 pcr = get_pcr(ts);
1565 }
1566 ts->next_pcr = ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period;
1567 } else if (pcr >= ts->next_pcr) {
1568 int64_t next_pcr = INT64_MAX;
1569 for (int i = 0; i < s->nb_streams; i++) {
1570 /* Make the current stream the last, because for that we
1571 * can insert the pcr into the payload later */
1572 int st2_index = i < st->index ? i : (i + 1 == s->nb_streams ? st->index : i + 1);
1573 AVStream *st2 = s->streams[st2_index];
1574 MpegTSWriteStream *ts_st2 = st2->priv_data;
1575 if (ts_st2->pcr_period) {
1576 if (pcr - ts_st2->last_pcr >= ts_st2->pcr_period) {
1577 ts_st2->last_pcr = FFMAX(pcr - ts_st2->pcr_period, ts_st2->last_pcr + ts_st2->pcr_period);
1578 if (st2 != st) {
1579 mpegts_insert_pcr_only(s, st2);
1580 pcr = get_pcr(ts);
1581 } else {
1582 write_pcr = 1;
1583 }
1584 }
1585 next_pcr = FFMIN(next_pcr, ts_st2->last_pcr + ts_st2->pcr_period);
1586 }
1587 }
1588 ts->next_pcr = next_pcr;
1589 }
1590 if (dts != AV_NOPTS_VALUE && (dts - pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR) > delay) {
1591 /* pcr insert gets priority over null packet insert */
1592 if (ts->pcr_pid >= FIRST_OTHER_PID) {
1593 int64_t cur_pcr = get_pcr(ts);
1594 if (cur_pcr - ts->pcr_stream_last_pcr >= ts->pcr_stream_pcr_period) {
1595 ts->pcr_stream_last_pcr = FFMAX(cur_pcr - ts->pcr_stream_pcr_period, ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period);
1596 mpegts_insert_pcr_only_pid(s, ts->pcr_pid, 0, 0);
1597 } else {
1598 mpegts_insert_null_packet(s);
1599 }
1600 } else if (write_pcr) {
1601 mpegts_insert_pcr_only(s, st);
1602 } else {
1603 mpegts_insert_null_packet(s);
1604 }
1605 /* recalculate write_pcr and possibly retransmit si_info */
1606 continue;
1607 }
1608 } else if (ts->pcr_pid >= FIRST_OTHER_PID && pcr != AV_NOPTS_VALUE) {
1609 /* VBR mode with dedicated PCR PID */
1610 if (pcr - ts->pcr_stream_last_pcr >= ts->pcr_stream_pcr_period && is_start) {
1611 ts->pcr_stream_last_pcr = FFMAX(pcr - ts->pcr_stream_pcr_period, ts->pcr_stream_last_pcr + ts->pcr_stream_pcr_period);
1612 mpegts_insert_pcr_only_pid(s, ts->pcr_pid, 0, 0);
1613 }
1614 } else if (ts_st->pcr_period && pcr != AV_NOPTS_VALUE) {
1615 if (pcr - ts_st->last_pcr >= ts_st->pcr_period && is_start) {
1616 ts_st->last_pcr = FFMAX(pcr - ts_st->pcr_period, ts_st->last_pcr + ts_st->pcr_period);
1617 write_pcr = 1;
1618 }
1619 }
1620
1621 /* prepare packet header */
1622 q = buf;
1623 *q++ = SYNC_BYTE;
1624 val = ts_st->pid >> 8;
1625 if (ts->m2ts_mode && st->codecpar->codec_id == AV_CODEC_ID_AC3)
1626 val |= 0x20;
1627 if (is_start)
1628 val |= 0x40;
1629 *q++ = val;
1630 *q++ = ts_st->pid;
1631 ts_st->cc = (ts_st->cc + 1) & 0xf;
1632 *q++ = 0x10 | ts_st->cc; // payload indicator + CC
1633 if (ts_st->discontinuity) {
1634 set_af_flag(buf, 0x80);
1635 q = get_ts_payload_start(buf);
1636 ts_st->discontinuity = 0;
1637 }
1638 if (!(ts->flags & MPEGTS_FLAG_OMIT_RAI) &&
1639 key && is_start && pts != AV_NOPTS_VALUE &&
1640 !is_dvb_teletext /* adaptation+payload forbidden for teletext (ETSI EN 300 472 V1.3.1 4.1) */) {
1641 // set Random Access for key frames
1642 if (ts_st->pcr_period && ts->pcr_pid < FIRST_OTHER_PID)
1643 write_pcr = 1;
1644 set_af_flag(buf, 0x40);
1645 q = get_ts_payload_start(buf);
1646 }
1647 if (write_pcr) {
1648 set_af_flag(buf, 0x10);
1649 q = get_ts_payload_start(buf);
1650 // add 11, pcr references the last byte of program clock reference base
1651 if (dts != AV_NOPTS_VALUE && dts < pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR)
1652 av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\n");
1653 extend_af(buf, write_pcr_bits(q, pcr));
1654 q = get_ts_payload_start(buf);
1655 }
1656 if (is_start) {
1657 int pes_extension = 0;
1658 int pes_header_stuffing_bytes = 0;
1659 int async;
1660 /* write PES header */
1661 *q++ = 0x00;
1662 *q++ = 0x00;
1663 *q++ = 0x01;
1664 *q++ = stream_id = get_pes_stream_id(s, st, stream_id, &async);
1665 if (async)
1666 pts = dts = AV_NOPTS_VALUE;
1667
1668 header_len = 0;
1669
1670 if (stream_id != STREAM_ID_PROGRAM_STREAM_MAP &&
1671 stream_id != STREAM_ID_PADDING_STREAM &&
1672 stream_id != STREAM_ID_PRIVATE_STREAM_2 &&
1673 stream_id != STREAM_ID_ECM_STREAM &&
1674 stream_id != STREAM_ID_EMM_STREAM &&
1675 stream_id != STREAM_ID_PROGRAM_STREAM_DIRECTORY &&
1676 stream_id != STREAM_ID_DSMCC_STREAM &&
1677 stream_id != STREAM_ID_TYPE_E_STREAM) {
1678
1679 flags = 0;
1680 if (pts != AV_NOPTS_VALUE) {
1681 header_len += 5;
1682 flags |= 0x80;
1683 }
1684 if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
1685 header_len += 5;
1686 flags |= 0x40;
1687 }
1688 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1689 st->codecpar->codec_id == AV_CODEC_ID_DIRAC) {
1690 /* set PES_extension_flag */
1691 pes_extension = 1;
1692 flags |= 0x01;
1693
1694 /* One byte for PES2 extension flag +
1695 * one byte for extension length +
1696 * one byte for extension id */
1697 header_len += 3;
1698 }
1699 /* for Blu-ray AC3 Audio the PES Extension flag should be as follow
1700 * otherwise it will not play sound on blu-ray
1701 */
1702 if (ts->m2ts_mode &&
1703 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1704 st->codecpar->codec_id == AV_CODEC_ID_AC3) {
1705 /* set PES_extension_flag */
1706 pes_extension = 1;
1707 flags |= 0x01;
1708 header_len += 3;
1709 }
1710 if (is_dvb_teletext) {
1711 pes_header_stuffing_bytes = 0x24 - header_len;
1712 header_len = 0x24;
1713 }
1714 len = payload_size + header_len + 3;
1715 /* 3 extra bytes should be added to DVB subtitle payload: 0x20 0x00 at the beginning and trailing 0xff */
1716 if (is_dvb_subtitle) {
1717 len += 3;
1718 payload_size++;
1719 }
1720 if (len > 0xffff)
1721 len = 0;
1722 if (ts->omit_video_pes_length && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1723 len = 0;
1724 }
1725 *q++ = len >> 8;
1726 *q++ = len;
1727 val = 0x80;
1728 /* data alignment indicator is required for subtitle and data streams */
1729 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
1730 val |= 0x04;
1731 *q++ = val;
1732 *q++ = flags;
1733 *q++ = header_len;
1734 if (pts != AV_NOPTS_VALUE) {
1735 write_pts(q, flags >> 6, pts);
1736 q += 5;
1737 }
1738 if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
1739 write_pts(q, 1, dts);
1740 q += 5;
1741 }
1742 if (pes_extension && st->codecpar->codec_id == AV_CODEC_ID_DIRAC) {
1743 flags = 0x01; /* set PES_extension_flag_2 */
1744 *q++ = flags;
1745 *q++ = 0x80 | 0x01; /* marker bit + extension length */
1746 /* Set the stream ID extension flag bit to 0 and
1747 * write the extended stream ID. */
1748 *q++ = 0x00 | 0x60;
1749 }
1750 /* For Blu-ray AC3 Audio Setting extended flags */
1751 if (ts->m2ts_mode &&
1752 pes_extension &&
1753 st->codecpar->codec_id == AV_CODEC_ID_AC3) {
1754 flags = 0x01; /* set PES_extension_flag_2 */
1755 *q++ = flags;
1756 *q++ = 0x80 | 0x01; /* marker bit + extension length */
1757 *q++ = 0x00 | 0x71; /* for AC3 Audio (specifically on blue-rays) */
1758 }
1759
1760
1761 if (is_dvb_subtitle) {
1762 /* First two fields of DVB subtitles PES data:
1763 * data_identifier: for DVB subtitle streams shall be coded with the value 0x20
1764 * subtitle_stream_id: for DVB subtitle stream shall be identified by the value 0x00 */
1765 *q++ = 0x20;
1766 *q++ = 0x00;
1767 }
1768 if (is_dvb_teletext) {
1769 memset(q, STUFFING_BYTE, pes_header_stuffing_bytes);
1770 q += pes_header_stuffing_bytes;
1771 }
1772 } else {
1773 len = payload_size;
1774 *q++ = len >> 8;
1775 *q++ = len;
1776 }
1777 is_start = 0;
1778 }
1779 /* header size */
1780 header_len = q - buf;
1781 /* data len */
1782 len = TS_PACKET_SIZE - header_len;
1783 if (len > payload_size)
1784 len = payload_size;
1785 stuffing_len = TS_PACKET_SIZE - header_len - len;
1786 if (stuffing_len > 0) {
1787 /* add stuffing with AFC */
1788 if (buf[3] & 0x20) {
1789 /* stuffing already present: increase its size */
1790 afc_len = buf[4] + 1;
1791 memmove(buf + 4 + afc_len + stuffing_len,
1792 buf + 4 + afc_len,
1793 header_len - (4 + afc_len));
1794 buf[4] += stuffing_len;
1795 memset(buf + 4 + afc_len, STUFFING_BYTE, stuffing_len);
1796 } else {
1797 /* add stuffing */
1798 memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
1799 buf[3] |= 0x20;
1800 buf[4] = stuffing_len - 1;
1801 if (stuffing_len >= 2) {
1802 buf[5] = 0x00;
1803 memset(buf + 6, STUFFING_BYTE, stuffing_len - 2);
1804 }
1805 }
1806 }
1807
1808 if (is_dvb_subtitle && payload_size == len) {
1809 memcpy(buf + TS_PACKET_SIZE - len, payload, len - 1);
1810 buf[TS_PACKET_SIZE - 1] = 0xff; /* end_of_PES_data_field_marker: an 8-bit field with fixed contents 0xff for DVB subtitle */
1811 } else {
1812 memcpy(buf + TS_PACKET_SIZE - len, payload, len);
1813 }
1814
1815 payload += len;
1816 payload_size -= len;
1817 write_packet(s, buf);
1818 }
1819 ts_st->prev_payload_key = key;
1820}
1821
1822static int check_h26x_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt, const char *codec)
1823{
1824 if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001 && AV_RB24(pkt->data) != 0x000001) {
1825 if (!st->nb_frames) {
1826 av_log(s, AV_LOG_ERROR, "%s bitstream malformed, "
1827 "no startcode found, use the video bitstream filter '%s_mp4toannexb' to fix it "
1828 "('-bsf:v %s_mp4toannexb' option with ffmpeg)\n", codec, codec, codec);
1829 return AVERROR_INVALIDDATA;
1830 }
1831 av_log(s, AV_LOG_WARNING, "%s bitstream error, startcode missing, size %d", codec, pkt->size);
1832 if (pkt->size)
1833 av_log(s, AV_LOG_WARNING, " data %08"PRIX32, AV_RB32(pkt->data));
1834 av_log(s, AV_LOG_WARNING, "\n");
1835 }
1836 return 0;
1837}
1838
1839int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
1840{
1841 return check_h26x_startcode(s, st, pkt, "h264");
1842}
1843
1844/* Based on GStreamer's gst-plugins-base/ext/ogg/gstoggstream.c
1845 * Released under the LGPL v2.1+, written by
1846 * Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
1847 */
1848static int opus_get_packet_samples(AVFormatContext *s, AVPacket *pkt)
1849{
1850 static const int durations[32] = {
1851 480, 960, 1920, 2880, /* Silk NB */
1852 480, 960, 1920, 2880, /* Silk MB */
1853 480, 960, 1920, 2880, /* Silk WB */
1854 480, 960, /* Hybrid SWB */
1855 480, 960, /* Hybrid FB */
1856 120, 240, 480, 960, /* CELT NB */
1857 120, 240, 480, 960, /* CELT NB */
1858 120, 240, 480, 960, /* CELT NB */
1859 120, 240, 480, 960, /* CELT NB */
1860 };
1861 int toc, frame_duration, nframes, duration;
1862
1863 if (pkt->size < 1)
1864 return 0;
1865
1866 toc = pkt->data[0];
1867
1868 frame_duration = durations[toc >> 3];
1869 switch (toc & 3) {
1870 case 0:
1871 nframes = 1;
1872 break;
1873 case 1:
1874 nframes = 2;
1875 break;
1876 case 2:
1877 nframes = 2;
1878 break;
1879 case 3:
1880 if (pkt->size < 2)
1881 return 0;
1882 nframes = pkt->data[1] & 63;
1883 break;
1884 }
1885
1886 duration = nframes * frame_duration;
1887 if (duration > 5760) {
1888 av_log(s, AV_LOG_WARNING,
1889 "Opus packet duration > 120 ms, invalid");
1890 return 0;
1891 }
1892
1893 return duration;
1894}
1895
1896static uint8_t *h26x_prefix_aud(const uint8_t *aud, const int aud_size,
1897 const uint8_t *extra_data, const int extra_size, AVPacket *pkt, int *size)
1898{
1899 const int sz = 4; //start code size
1900 uint8_t *data = av_malloc(pkt->size + sz + aud_size + extra_size);
1901 if (!data)
1902 return NULL;
1903 AV_WB32(data, 0x00000001);
1904 memcpy(data + sz, aud, aud_size);
1905 memcpy(data + sz + aud_size, extra_data, extra_size);
1906 memcpy(data + sz + aud_size + extra_size, pkt->data, pkt->size);
1907 *size = pkt->size + sz + aud_size + extra_size;
1908 return data;
1909}
1910
1911#define H264_NAL_TYPE(state) (state & 0x1f)
1912#define HEVC_NAL_TYPE(state) ((state & 0x7e) >> 1)
1913#define VVC_NAL_TYPE(state) ((state >> 11) & 0x1f)
1914static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
1915{
1916 AVStream *st = s->streams[pkt->stream_index];
1917 int size = pkt->size;
1918 const uint8_t *buf = pkt->data;
1919 uint8_t *data = NULL;
1920 MpegTSWrite *ts = s->priv_data;
1921 MpegTSWriteStream *ts_st = st->priv_data;
1922 const int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) * 2;
1923 const int64_t max_audio_delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) / 2;
1924 int64_t dts = pkt->dts, pts = pkt->pts;
1925 int opus_samples = 0;
1926 int stream_id = -1;
1927
1928 uint8_t *stream_id_p = av_packet_get_side_data(pkt,
1929 AV_PKT_DATA_MPEGTS_STREAM_ID,
1930 NULL);
1931 if (stream_id_p)
1932 stream_id = stream_id_p[0];
1933
1934 if (!ts->first_dts_checked && dts != AV_NOPTS_VALUE) {
1935 ts->first_pcr += dts * SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1936 ts->first_dts_checked = 1;
1937 }
1938
1939 if (ts->copyts < 1) {
1940 if (pts != AV_NOPTS_VALUE)
1941 pts += delay;
1942 if (dts != AV_NOPTS_VALUE)
1943 dts += delay;
1944 }
1945
1946 if (!ts_st->first_timestamp_checked && (pts == AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE)) {
1947 av_log(s, AV_LOG_ERROR, "first pts and dts value must be set\n");
1948 return AVERROR_INVALIDDATA;
1949 }
1950 ts_st->first_timestamp_checked = 1;
1951
1952 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
1953 const uint8_t *p = buf, *buf_end = p + size;
1954 const uint8_t *found_aud = NULL, *found_aud_end = NULL;
1955 int nal_type;
1956 uint32_t state = -1;
1957 int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
1958 int ret = ff_check_h264_startcode(s, st, pkt);
1959 if (ret < 0)
1960 return ret;
1961
1962 if (extradd && AV_RB24(st->codecpar->extradata) > 1)
1963 extradd = 0;
1964
1965 /* Ensure that all pictures are prefixed with an AUD, and that
1966 * IDR pictures are also prefixed with SPS and PPS. SPS and PPS
1967 * are assumed to be available in 'extradata' if not found in-band. */
1968 do {
1969 p = avpriv_find_start_code(p, buf_end, &state);
1970 nal_type = H264_NAL_TYPE(state);
1971 av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type);
1972 if (nal_type == H264_NAL_SPS)
1973 extradd = 0;
1974 if (nal_type == H264_NAL_AUD) {
1975 found_aud = p - 4; // start of the 0x000001 start code.
1976 found_aud_end = p + 1; // first byte past the AUD.
1977 if (found_aud < buf)
1978 found_aud = buf;
1979 if (buf_end < found_aud_end)
1980 found_aud_end = buf_end;
1981 }
1982 } while (p < buf_end
1983 && nal_type != H264_NAL_IDR_SLICE
1984 && nal_type != H264_NAL_SLICE
1985 && (extradd > 0 || !found_aud));
1986 if (nal_type != H264_NAL_IDR_SLICE)
1987 extradd = 0;
1988
1989 if (!found_aud) {
1990 /* Prefix 'buf' with the missing AUD, and extradata if needed. */
1991 const uint8_t aud[] = {
1992 H264_NAL_AUD,
1993 0xf0, // any slice type (0xe) + rbsp stop one bit
1994 };
1995 buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud),
1996 st->codecpar->extradata, extradd, pkt, &size);
1997 if (!data)
1998 return AVERROR(ENOMEM);
1999 } else if (extradd != 0) {
2000 /* Move the AUD up to the beginning of the frame, where the H.264
2001 * spec requires it to appear. Emit the extradata after it. */
2002 PutByteContext pb;
2003 const int new_pkt_size = pkt->size + 1 + extradd;
2004 data = av_malloc(new_pkt_size);
2005 if (!data)
2006 return AVERROR(ENOMEM);
2007 bytestream2_init_writer(&pb, data, new_pkt_size);
2008 bytestream2_put_byte(&pb, 0x00);
2009 bytestream2_put_buffer(&pb, found_aud, found_aud_end - found_aud);
2010 bytestream2_put_buffer(&pb, st->codecpar->extradata, extradd);
2011 bytestream2_put_buffer(&pb, pkt->data, found_aud - pkt->data);
2012 bytestream2_put_buffer(&pb, found_aud_end, buf_end - found_aud_end);
2013 av_assert0(new_pkt_size == bytestream2_tell_p(&pb));
2014 buf = data;
2015 size = new_pkt_size;
2016 }
2017 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
2018 if (pkt->size < 2) {
2019 av_log(s, AV_LOG_ERROR, "AAC packet too short\n");
2020 return AVERROR_INVALIDDATA;
2021 }
2022 if ((AV_RB16(pkt->data) & 0xfff0) != 0xfff0) {
2023 int ret;
2024 AVPacket *pkt2 = ts->pkt;
2025
2026 if (!ts_st->amux) {
2027 av_log(s, AV_LOG_ERROR, "AAC bitstream not in ADTS format "
2028 "and extradata missing\n");
2029 } else {
2030 av_packet_unref(pkt2);
2031 pkt2->data = pkt->data;
2032 pkt2->size = pkt->size;
2033 av_assert0(pkt->dts != AV_NOPTS_VALUE);
2034 pkt2->dts = av_rescale_q(pkt->dts, st->time_base, ts_st->amux->streams[0]->time_base);
2035
2036 ret = avio_open_dyn_buf(&ts_st->amux->pb);
2037 if (ret < 0)
2038 return ret;
2039
2040 ret = av_write_frame(ts_st->amux, pkt2);
2041 if (ret < 0) {
2042 ffio_free_dyn_buf(&ts_st->amux->pb);
2043 return ret;
2044 }
2045 size = avio_close_dyn_buf(ts_st->amux->pb, &data);
2046 ts_st->amux->pb = NULL;
2047 buf = data;
2048 }
2049 }
2050 } else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
2051 const uint8_t *p = buf, *buf_end = p + size;
2052 uint32_t state = -1;
2053 int nal_type;
2054 int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2055 int ret = check_h26x_startcode(s, st, pkt, "hevc");
2056 if (ret < 0)
2057 return ret;
2058
2059 if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2060 extradd = 0;
2061
2062 do {
2063 p = avpriv_find_start_code(p, buf_end, &state);
2064 nal_type = HEVC_NAL_TYPE(state);
2065 av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type);
2066 if (nal_type == HEVC_NAL_VPS)
2067 extradd = 0;
2068 } while (p < buf_end && nal_type != HEVC_NAL_AUD && nal_type >= HEVC_NAL_VPS);
2069
2070 if (nal_type < HEVC_NAL_BLA_W_LP || nal_type >= HEVC_NAL_RSV_VCL24)
2071 extradd = 0;
2072 if (nal_type != HEVC_NAL_AUD) { // AUD NAL
2073 const uint8_t aud[] = {
2074 (HEVC_NAL_AUD << 1),
2075 0x01,
2076 0x50, // any slice type (0x4) + rbsp stop one bit
2077 };
2078 buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud),
2079 st->codecpar->extradata, extradd, pkt, &size);
2080 if (!data)
2081 return AVERROR(ENOMEM);
2082 }
2083 } else if (st->codecpar->codec_id == AV_CODEC_ID_VVC) {
2084 const uint8_t *p = buf, *buf_end = p + size;
2085 uint32_t state = -1;
2086 uint32_t nal_type = -1;
2087 int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2088 int ret = check_h26x_startcode(s, st, pkt, "vvc");
2089 if (ret < 0)
2090 return ret;
2091
2092 if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2093 extradd = 0;
2094
2095 do {
2096 p = avpriv_find_start_code(p, buf_end, &state);
2097 // state contains byte behind start code, p points 2 bytes behind start code
2098 nal_type = VVC_NAL_TYPE(state);
2099 av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type );
2100 if (nal_type == VVC_VPS_NUT)
2101 extradd = 0;
2102 } while (p < buf_end && nal_type != VVC_AUD_NUT && nal_type >= VVC_OPI_NUT);
2103
2104 if (nal_type >= VVC_OPI_NUT)
2105 extradd = 0;
2106 if (nal_type != VVC_AUD_NUT) { // AUD NAL
2107 const uint8_t aud[] = {
2108 0, // forbidden_zero_bit, nuh_reserved_zero_bit, nuh_layer_id
2109 (VVC_AUD_NUT << 3) | 1, // nal_unit_type, nuh_temporal_id_plus1(1)
2110 (pkt->flags & AV_PKT_FLAG_KEY) << 7 | 0x28, // aud_irap_or_gdr_flag, aud_pic_type(2), rbsp_stop_one_bit
2111 };
2112 buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud), st->codecpar->extradata, extradd, pkt, &size);
2113 if (!data)
2114 return AVERROR(ENOMEM);
2115 }
2116 } else if (st->codecpar->codec_id == AV_CODEC_ID_OPUS) {
2117 if (pkt->size < 2) {
2118 av_log(s, AV_LOG_ERROR, "Opus packet too short\n");
2119 return AVERROR_INVALIDDATA;
2120 }
2121
2122 /* Add Opus control header */
2123 if ((AV_RB16(pkt->data) >> 5) != 0x3ff) {
2124 uint8_t *side_data;
2125 size_t side_data_size;
2126 int i, n;
2127 int ctrl_header_size;
2128 int trim_start = 0, trim_end = 0;
2129
2130 opus_samples = opus_get_packet_samples(s, pkt);
2131
2132 side_data = av_packet_get_side_data(pkt,
2133 AV_PKT_DATA_SKIP_SAMPLES,
2134 &side_data_size);
2135
2136 if (side_data && side_data_size >= 10) {
2137 trim_end = AV_RL32(side_data + 4) * 48000 / st->codecpar->sample_rate;
2138 }
2139
2140 ctrl_header_size = pkt->size + 2 + pkt->size / 255 + 1;
2141 if (ts_st->opus_pending_trim_start)
2142 ctrl_header_size += 2;
2143 if (trim_end)
2144 ctrl_header_size += 2;
2145
2146 data = av_malloc(ctrl_header_size);
2147 if (!data)
2148 return AVERROR(ENOMEM);
2149
2150 data[0] = 0x7f;
2151 data[1] = 0xe0;
2152 if (ts_st->opus_pending_trim_start)
2153 data[1] |= 0x10;
2154 if (trim_end)
2155 data[1] |= 0x08;
2156
2157 n = pkt->size;
2158 i = 2;
2159 do {
2160 data[i] = FFMIN(n, 255);
2161 n -= 255;
2162 i++;
2163 } while (n >= 0);
2164
2165 av_assert0(2 + pkt->size / 255 + 1 == i);
2166
2167 if (ts_st->opus_pending_trim_start) {
2168 trim_start = FFMIN(ts_st->opus_pending_trim_start, opus_samples);
2169 AV_WB16(data + i, trim_start);
2170 i += 2;
2171 ts_st->opus_pending_trim_start -= trim_start;
2172 }
2173 if (trim_end) {
2174 trim_end = FFMIN(trim_end, opus_samples - trim_start);
2175 AV_WB16(data + i, trim_end);
2176 i += 2;
2177 }
2178
2179 memcpy(data + i, pkt->data, pkt->size);
2180 buf = data;
2181 size = ctrl_header_size;
2182 } else {
2183 /* TODO: Can we get TS formatted data here? If so we will
2184 * need to count the samples of that too! */
2185 av_log(s, AV_LOG_WARNING, "Got MPEG-TS formatted Opus data, unhandled");
2186 }
2187 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3 && !ts_st->dvb_ac3_desc) {
2188 AC3HeaderInfo *hdr = NULL;
2189
2190 if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) >= 0) {
2191 uint8_t number_of_channels_flag;
2192 uint8_t service_type_flag;
2193 uint8_t full_service_flag = 1;
2194 DVBAC3Descriptor *dvb_ac3_desc;
2195
2196 dvb_ac3_desc = av_mallocz(sizeof(*dvb_ac3_desc));
2197 if (!dvb_ac3_desc) {
2198 av_free(hdr);
2199 return AVERROR(ENOMEM);
2200 }
2201
2202 service_type_flag = hdr->bitstream_mode;
2203 switch (hdr->channel_mode) {
2204 case AC3_CHMODE_DUALMONO:
2205 number_of_channels_flag = 1;
2206 break;
2207 case AC3_CHMODE_MONO:
2208 number_of_channels_flag = 0;
2209 break;
2210 case AC3_CHMODE_STEREO:
2211 if (hdr->dolby_surround_mode == AC3_DSURMOD_ON)
2212 number_of_channels_flag = 3;
2213 else
2214 number_of_channels_flag = 2;
2215 break;
2216 case AC3_CHMODE_3F:
2217 case AC3_CHMODE_2F1R:
2218 case AC3_CHMODE_3F1R:
2219 case AC3_CHMODE_2F2R:
2220 case AC3_CHMODE_3F2R:
2221 number_of_channels_flag = 4;
2222 break;
2223 default: /* reserved */
2224 number_of_channels_flag = 7;
2225 break;
2226 }
2227
2228 if (service_type_flag == 1 || service_type_flag == 4 ||
2229 (service_type_flag == 7 && !number_of_channels_flag))
2230 full_service_flag = 0;
2231
2232 dvb_ac3_desc->component_type_flag = 1;
2233 dvb_ac3_desc->component_type = (full_service_flag << 6) |
2234 ((service_type_flag & 0x7) << 3) |
2235 (number_of_channels_flag & 0x7);
2236 dvb_ac3_desc->bsid_flag = 1;
2237 dvb_ac3_desc->bsid = hdr->bitstream_id;
2238 dvb_ac3_desc->mainid_flag = 0;
2239 dvb_ac3_desc->asvc_flag = 0;
2240
2241 ts_st->dvb_ac3_desc = dvb_ac3_desc;
2242 }
2243 av_free(hdr);
2244 } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_BLURAY && ts->m2ts_mode) {
2245 mpegts_write_pes(s, st, buf, size, pts, dts,
2246 pkt->flags & AV_PKT_FLAG_KEY, stream_id);
2247 return 0;
2248 }
2249
2250 if (ts_st->payload_size && (ts_st->payload_size + size > ts->pes_payload_size ||
2251 (dts != AV_NOPTS_VALUE && ts_st->payload_dts != AV_NOPTS_VALUE &&
2252 dts - ts_st->payload_dts >= max_audio_delay) ||
2253 ts_st->opus_queued_samples + opus_samples >= 5760 /* 120ms */)) {
2254 mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size,
2255 ts_st->payload_pts, ts_st->payload_dts,
2256 ts_st->payload_flags & AV_PKT_FLAG_KEY, stream_id);
2257 ts_st->payload_size = 0;
2258 ts_st->opus_queued_samples = 0;
2259 }
2260
2261 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO || size > ts->pes_payload_size) {
2262 av_assert0(!ts_st->payload_size);
2263 // for video and subtitle, write a single pes packet
2264 mpegts_write_pes(s, st, buf, size, pts, dts,
2265 pkt->flags & AV_PKT_FLAG_KEY, stream_id);
2266 ts_st->opus_queued_samples = 0;
2267 av_free(data);
2268 return 0;
2269 }
2270
2271 if (!ts_st->payload_size) {
2272 ts_st->payload_pts = pts;
2273 ts_st->payload_dts = dts;
2274 ts_st->payload_flags = pkt->flags;
2275 }
2276
2277 memcpy(ts_st->payload + ts_st->payload_size, buf, size);
2278 ts_st->payload_size += size;
2279 ts_st->opus_queued_samples += opus_samples;
2280
2281 av_free(data);
2282
2283 return 0;
2284}
2285
2286static void mpegts_write_flush(AVFormatContext *s)
2287{
2288 MpegTSWrite *ts = s->priv_data;
2289 int i;
2290
2291 /* flush current packets */
2292 for (i = 0; i < s->nb_streams; i++) {
2293 AVStream *st = s->streams[i];
2294 MpegTSWriteStream *ts_st = st->priv_data;
2295 if (ts_st->payload_size > 0) {
2296 mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size,
2297 ts_st->payload_pts, ts_st->payload_dts,
2298 ts_st->payload_flags & AV_PKT_FLAG_KEY, -1);
2299 ts_st->payload_size = 0;
2300 ts_st->opus_queued_samples = 0;
2301 }
2302 }
2303
2304 if (ts->m2ts_mode) {
2305 int packets = (avio_tell(s->pb) / (TS_PACKET_SIZE + 4)) % 32;
2306 while (packets++ < 32)
2307 mpegts_insert_null_packet(s);
2308 }
2309}
2310
2311static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
2312{
2313 if (!pkt) {
2314 mpegts_write_flush(s);
2315 return 1;
2316 } else {
2317 return mpegts_write_packet_internal(s, pkt);
2318 }
2319}
2320
2321static int mpegts_write_end(AVFormatContext *s)
2322{
2323 if (s->pb)
2324 mpegts_write_flush(s);
2325
2326 return 0;
2327}
2328
2329static void mpegts_deinit(AVFormatContext *s)
2330{
2331 MpegTSWrite *ts = s->priv_data;
2332 MpegTSService *service;
2333 int i;
2334
2335 for (i = 0; i < s->nb_streams; i++) {
2336 AVStream *st = s->streams[i];
2337 MpegTSWriteStream *ts_st = st->priv_data;
2338 if (ts_st) {
2339 av_freep(&ts_st->dvb_ac3_desc);
2340 av_freep(&ts_st->payload);
2341 if (ts_st->amux) {
2342 avformat_free_context(ts_st->amux);
2343 ts_st->amux = NULL;
2344 }
2345 }
2346 }
2347
2348 for (i = 0; i < ts->nb_services; i++) {
2349 service = ts->services[i];
2350 av_freep(&service);
2351 }
2352 av_freep(&ts->services);
2353}
2354
2355static int mpegts_check_bitstream(AVFormatContext *s, AVStream *st,
2356 const AVPacket *pkt)
2357{
2358 const struct Entry {
2359 enum AVCodecID id;
2360 const char *bsf_name;
2361 uint8_t mask;
2362 uint8_t value;
2363 } list[] = {
2364 { AV_CODEC_ID_H264, "h264_mp4toannexb", 0xff, 0x01 /* configurationVersion in AVCDecoderConfigurationRecord */},
2365 { AV_CODEC_ID_HEVC, "hevc_mp4toannexb", 0xff, 0x01 /* configurationVersion in HEVCDecoderConfigurationRecord */},
2366 { AV_CODEC_ID_VVC, "vvc_mp4toannexb", 0xf8, 0xf8 /* reserved '11111'b in VVCDecoderConfigurationRecord */},
2367 };
2368
2369 for (int i = 0; i < FF_ARRAY_ELEMS(list); i++) {
2370 const struct Entry *e = list + i;
2371 if (e->id == st->codecpar->codec_id &&
2372 pkt->size >= 5 && AV_RB32(pkt->data) != 0x0000001 &&
2373 (AV_RB24(pkt->data) != 0x000001 ||
2374 (st->codecpar->extradata_size > 0 &&
2375 ((st->codecpar->extradata[0] & e->mask) == e->value))))
2376 return ff_stream_add_bitstream_filter(st, e->bsf_name, NULL);
2377 }
2378 return 1;
2379}
2380
2381#define OFFSET(x) offsetof(MpegTSWrite, x)
2382#define ENC AV_OPT_FLAG_ENCODING_PARAM
2383static const AVOption options[] = {
2384 { "mpegts_transport_stream_id", "Set transport_stream_id field.",
2385 OFFSET(transport_stream_id), AV_OPT_TYPE_INT, { .i64 = 0x0001 }, 0x0001, 0xffff, ENC },
2386 { "mpegts_original_network_id", "Set original_network_id field.",
2387 OFFSET(original_network_id), AV_OPT_TYPE_INT, { .i64 = DVB_PRIVATE_NETWORK_START }, 0x0001, 0xffff, ENC },
2388 { "mpegts_service_id", "Set service_id field.",
2389 OFFSET(service_id), AV_OPT_TYPE_INT, { .i64 = 0x0001 }, 0x0001, 0xffff, ENC },
2390 { "mpegts_service_type", "Set service_type field.",
2391 OFFSET(service_type), AV_OPT_TYPE_INT, { .i64 = 0x01 }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2392 { "digital_tv", "Digital Television.",
2393 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_DIGITAL_TV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2394 { "digital_radio", "Digital Radio.",
2395 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_DIGITAL_RADIO }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2396 { "teletext", "Teletext.",
2397 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_TELETEXT }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2398 { "advanced_codec_digital_radio", "Advanced Codec Digital Radio.",
2399 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2400 { "mpeg2_digital_hdtv", "MPEG2 Digital HDTV.",
2401 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2402 { "advanced_codec_digital_sdtv", "Advanced Codec Digital SDTV.",
2403 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2404 { "advanced_codec_digital_hdtv", "Advanced Codec Digital HDTV.",
2405 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2406 { "hevc_digital_hdtv", "HEVC Digital Television Service.",
2407 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2408 { "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
2409 OFFSET(pmt_start_pid), AV_OPT_TYPE_INT, { .i64 = 0x1000 }, FIRST_OTHER_PID, LAST_OTHER_PID, ENC },
2410 { "mpegts_start_pid", "Set the first pid.",
2411 OFFSET(start_pid), AV_OPT_TYPE_INT, { .i64 = 0x0100 }, FIRST_OTHER_PID, LAST_OTHER_PID, ENC },
2412 { "mpegts_m2ts_mode", "Enable m2ts mode.", OFFSET(m2ts_mode), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, ENC },
2413 { "muxrate", NULL, OFFSET(mux_rate), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
2414 { "pes_payload_size", "Minimum PES packet payload in bytes",
2415 OFFSET(pes_payload_size), AV_OPT_TYPE_INT, { .i64 = DEFAULT_PES_PAYLOAD_SIZE }, 0, INT_MAX, ENC },
2416 { "mpegts_flags", "MPEG-TS muxing flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2417 { "resend_headers", "Reemit PAT/PMT before writing the next packet",
2418 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_REEMIT_PAT_PMT }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2419 { "latm", "Use LATM packetization for AAC",
2420 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_AAC_LATM }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2421 { "pat_pmt_at_frames", "Reemit PAT and PMT at each video frame",
2422 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_PAT_PMT_AT_FRAMES}, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2423 { "system_b", "Conform to System B (DVB) instead of System A (ATSC)",
2424 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_SYSTEM_B }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2425 { "initial_discontinuity", "Mark initial packets as discontinuous",
2426 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_DISCONT }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2427 { "nit", "Enable NIT transmission",
2428 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_NIT}, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2429 { "omit_rai", "Disable writing of random access indicator",
2430 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_OMIT_RAI }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2431 { "mpegts_copyts", "don't offset dts/pts", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, ENC },
2432 { "tables_version", "set PAT, PMT, SDT and NIT version", OFFSET(tables_version), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 31, ENC },
2433 { "omit_video_pes_length", "Omit the PES packet length for video packets",
2434 OFFSET(omit_video_pes_length), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, ENC },
2435 { "pcr_period", "PCR retransmission time in milliseconds",
2436 OFFSET(pcr_period_ms), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, ENC },
2437 { "mpegts_pcr_pid", "Set a separate PCR PID (-1 means PCR on video PID)",
2438 OFFSET(pcr_pid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, LAST_OTHER_PID, ENC },
2439 { "pat_period", "PAT/PMT retransmission time limit in seconds",
2440 OFFSET(pat_period_us), AV_OPT_TYPE_DURATION, { .i64 = PAT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2441 { "sdt_period", "SDT retransmission time limit in seconds",
2442 OFFSET(sdt_period_us), AV_OPT_TYPE_DURATION, { .i64 = SDT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2443 { "nit_period", "NIT retransmission time limit in seconds",
2444 OFFSET(nit_period_us), AV_OPT_TYPE_DURATION, { .i64 = NIT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2445 { NULL },
2446};
2447
2448static const AVClass mpegts_muxer_class = {
2449 .class_name = "MPEGTS muxer",
2450 .item_name = av_default_item_name,
2451 .option = options,
2452 .version = LIBAVUTIL_VERSION_INT,
2453};
2454
2455const FFOutputFormat ff_mpegts_muxer = {
2456 .p.name = "mpegts",
2457 .p.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
2458 .p.mime_type = "video/MP2T",
2459 .p.extensions = "ts,m2t,m2ts,mts",
2460 .priv_data_size = sizeof(MpegTSWrite),
2461 .p.audio_codec = AV_CODEC_ID_MP2,
2462 .p.video_codec = AV_CODEC_ID_MPEG2VIDEO,
2463 .init = mpegts_init,
2464 .write_packet = mpegts_write_packet,
2465 .write_trailer = mpegts_write_end,
2466 .deinit = mpegts_deinit,
2467 .check_bitstream = mpegts_check_bitstream,
2468 .p.flags = AVFMT_VARIABLE_FPS | AVFMT_NODIMENSIONS,
2469 .flags_internal = FF_OFMT_FLAG_ALLOW_FLUSH,
2470 .p.priv_class = &mpegts_muxer_class,
2471};
avpriv_ac3_parse_header
int avpriv_ac3_parse_header(AC3HeaderInfo **phdr, const uint8_t *buf, size_t size)
Definition ac3_parser.c:491
ac3_parser_internal.h
AC3_CHMODE_MONO
@ AC3_CHMODE_MONO
Definition ac3defs.h:69
AC3_CHMODE_STEREO
@ AC3_CHMODE_STEREO
Definition ac3defs.h:70
AC3_CHMODE_2F1R
@ AC3_CHMODE_2F1R
Definition ac3defs.h:72
AC3_CHMODE_DUALMONO
@ AC3_CHMODE_DUALMONO
Definition ac3defs.h:68
AC3_CHMODE_3F
@ AC3_CHMODE_3F
Definition ac3defs.h:71
AC3_CHMODE_3F1R
@ AC3_CHMODE_3F1R
Definition ac3defs.h:73
AC3_CHMODE_2F2R
@ AC3_CHMODE_2F2R
Definition ac3defs.h:74
AC3_CHMODE_3F2R
@ AC3_CHMODE_3F2R
Definition ac3defs.h:75
AC3_DSURMOD_ON
@ AC3_DSURMOD_ON
Definition ac3defs.h:82
val
static double val(void *priv, double ch)
Definition aeval.c:77
ff_mpegts_muxer
const FFOutputFormat ff_mpegts_muxer
Definition mpegtsenc.c:2455
ctx
static AVFormatContext * ctx
Definition api-movenc-test.c:49
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition avassert.h:42
avpriv_set_pts_info
void avpriv_set_pts_info(AVStream *st, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition avformat.c:834
avformat.h
Main libavformat public API header.
AVFMT_NODIMENSIONS
#define AVFMT_NODIMENSIONS
Format does not need width/height.
Definition avformat.h:502
AV_DISPOSITION_HEARING_IMPAIRED
#define AV_DISPOSITION_HEARING_IMPAIRED
The stream is intended for hearing impaired audiences.
Definition avformat.h:676
AVFMT_VARIABLE_FPS
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition avformat.h:501
AV_DISPOSITION_CLEAN_EFFECTS
#define AV_DISPOSITION_CLEAN_EFFECTS
The audio stream contains music and sound effects without voice.
Definition avformat.h:684
AV_DISPOSITION_VISUAL_IMPAIRED
#define AV_DISPOSITION_VISUAL_IMPAIRED
The stream is intended for visually impaired audiences.
Definition avformat.h:680
avio_tell
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition avio.h:494
avio_close_dyn_buf
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition aviobuf.c:1410
avio_write
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition aviobuf.c:206
avio_open_dyn_buf
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Definition aviobuf.c:1365
avio_internal.h
ffio_free_dyn_buf
void ffio_free_dyn_buf(AVIOContext **s)
Free a dynamic buffer.
Definition aviobuf.c:1438
left
static int BS_FUNC left(const BSCTX *bc)
Return the number of the bits left in a buffer.
Definition bitstream_template.h:170
bswap.h
byte swapping routines
bytestream2_tell_p
static av_always_inline int bytestream2_tell_p(const PutByteContext *p)
Definition bytestream.h:197
bytestream2_init_writer
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
Definition bytestream.h:147
bytestream2_put_buffer
static av_always_inline unsigned int bytestream2_put_buffer(PutByteContext *p, const uint8_t *src, unsigned int size)
Definition bytestream.h:286
ENC
#define ENC
Definition caca.c:198
metadata
static int FUNC metadata(CodedBitstreamContext *ctx, RWContext *rw, APVRawMetadata *current)
Definition cbs_apv_syntax_template.c:497
flag
#define flag(name)
Definition cbs_h264.c:60
flags
#define flags(name, subs,...)
Definition cbs_h264.c:74
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
aud
static int FUNC aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
Definition cbs_h264_syntax_template.c:875
s
#define s(width, name)
Definition cbs_vp9.c:198
avcodec_parameters_copy
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Definition codec_par.c:107
GET_UTF8
#define GET_UTF8(val, GET_BYTE, ERROR)
Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
Definition common.h:477
NULL
#define NULL
Definition coverity.c:32
int64_t
long long int64_t
Definition coverity.c:34
crc.h
Public header for CRC hash function implementation.
defs.h
Misc types and constants that do not belong anywhere else.
AV_PROFILE_ARIB_PROFILE_A
#define AV_PROFILE_ARIB_PROFILE_A
Definition defs.h:191
AV_PROFILE_ARIB_PROFILE_C
#define AV_PROFILE_ARIB_PROFILE_C
Definition defs.h:192
FF_COMPLIANCE_NORMAL
#define FF_COMPLIANCE_NORMAL
Definition defs.h:60
AV_PROFILE_KLVA_SYNC
#define AV_PROFILE_KLVA_SYNC
Definition defs.h:194
pkt
static AVPacket * pkt
Definition demux_decode.c:55
dict.h
Public dictionary API.
id
enum AVCodecID id
Definition dts2pts.c:607
value
double value
Definition eval.c:102
state
static struct @346255127015250356166251341105367306144006377143 state
key
const char * key
Definition ffmpeg_mux_init.c:2985
duration
static int64_t duration
Definition ffplay.c:330
nb_streams
static unsigned int nb_streams
Definition ffprobe.c:352
frame_size
static const uint8_t frame_size[4]
Definition g723_1.h:222
fail
#define fail
Definition test.h:479
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition opt.h:298
AV_OPT_TYPE_DURATION
@ AV_OPT_TYPE_DURATION
Underlying C type is int64_t.
Definition opt.h:318
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Underlying C type is unsigned int.
Definition opt.h:254
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition opt.h:258
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
Definition opt.h:326
avcodec_get_name
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition utils.c:421
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition codec_id.h:47
AV_CODEC_ID_DIRAC
@ AV_CODEC_ID_DIRAC
Definition codec_id.h:166
AV_CODEC_ID_AVS3
@ AV_CODEC_ID_AVS3
Definition codec_id.h:245
AV_CODEC_ID_TIMED_ID3
@ AV_CODEC_ID_TIMED_ID3
Definition codec_id.h:606
AV_CODEC_ID_HDMV_PGS_SUBTITLE
@ AV_CODEC_ID_HDMV_PGS_SUBTITLE
Definition codec_id.h:572
AV_CODEC_ID_EAC3
@ AV_CODEC_ID_EAC3
Definition codec_id.h:493
AV_CODEC_ID_DVB_SUBTITLE
@ AV_CODEC_ID_DVB_SUBTITLE
Definition codec_id.h:567
AV_CODEC_ID_S302M
@ AV_CODEC_ID_S302M
Definition codec_id.h:356
AV_CODEC_ID_SMPTE_2038
@ AV_CODEC_ID_SMPTE_2038
Definition codec_id.h:608
AV_CODEC_ID_PCM_BLURAY
@ AV_CODEC_ID_PCM_BLURAY
Definition codec_id.h:354
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition codec_id.h:77
AV_CODEC_ID_SMPTE_KLV
@ AV_CODEC_ID_SMPTE_KLV
Definition codec_id.h:604
AV_CODEC_ID_HDMV_TEXT_SUBTITLE
@ AV_CODEC_ID_HDMV_TEXT_SUBTITLE
Definition codec_id.h:589
AV_CODEC_ID_VVC
@ AV_CODEC_ID_VVC
Definition codec_id.h:247
AV_CODEC_ID_VC1
@ AV_CODEC_ID_VC1
Definition codec_id.h:120
AV_CODEC_ID_ARIB_CAPTION
@ AV_CODEC_ID_ARIB_CAPTION
Definition codec_id.h:591
AV_CODEC_ID_CAVS
@ AV_CODEC_ID_CAVS
Definition codec_id.h:137
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition codec_id.h:453
AV_CODEC_ID_DTS
@ AV_CODEC_ID_DTS
Definition codec_id.h:457
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition codec_id.h:223
AV_CODEC_ID_AAC
@ AV_CODEC_ID_AAC
Definition codec_id.h:455
AV_CODEC_ID_TRUEHD
@ AV_CODEC_ID_TRUEHD
Definition codec_id.h:497
AV_CODEC_ID_AC3
@ AV_CODEC_ID_AC3
Definition codec_id.h:456
AV_CODEC_ID_DVB_TELETEXT
@ AV_CODEC_ID_DVB_TELETEXT
Definition codec_id.h:573
AV_CODEC_ID_MPEG4
@ AV_CODEC_ID_MPEG4
Definition codec_id.h:62
AV_CODEC_ID_AVS2
@ AV_CODEC_ID_AVS2
Definition codec_id.h:243
AV_CODEC_ID_MP3
@ AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition codec_id.h:454
AV_CODEC_ID_MPEG1VIDEO
@ AV_CODEC_ID_MPEG1VIDEO
Definition codec_id.h:51
AV_CODEC_ID_AAC_LATM
@ AV_CODEC_ID_AAC_LATM
Definition codec_id.h:502
AV_CODEC_ID_OPUS
@ AV_CODEC_ID_OPUS
Definition codec_id.h:513
AV_CODEC_ID_MPEG2VIDEO
@ AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition codec_id.h:52
AV_PKT_DATA_SKIP_SAMPLES
@ AV_PKT_DATA_SKIP_SAMPLES
Recommends skipping the specified number of samples.
Definition packet.h:153
AV_PKT_DATA_MPEGTS_STREAM_ID
@ AV_PKT_DATA_MPEGTS_STREAM_ID
MPEGTS stream ID as uint8_t, this is required to pass the stream ID information from the demuxer to t...
Definition packet.h:212
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition packet.c:434
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition packet.h:650
av_packet_get_side_data
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, size_t *size)
Get side information from packet.
Definition packet.c:252
avformat_new_stream
AVStream * avformat_new_stream(AVFormatContext *s, const struct AVCodec *c)
Add a new stream to a media file.
avformat_alloc_context
AVFormatContext * avformat_alloc_context(void)
Allocate an AVFormatContext.
Definition options.c:165
avformat_free_context
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition avformat.c:150
avformat_write_header
av_warn_unused_result int avformat_write_header(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and write the stream header to an output media file.
Definition mux.c:467
av_guess_format
const AVOutputFormat * av_guess_format(const char *short_name, const char *filename, const char *mime_type)
Return the output format in the list of registered output formats which best matches the provided par...
Definition format.c:79
av_write_frame
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition mux.c:1176
av_match_ext
int av_match_ext(const char *filename, const char *extensions)
Return a positive value if the given filename has one of the given extensions, 0 otherwise.
Definition format.c:41
av_crc_get_table
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
Definition crc.c:389
av_crc
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
Definition crc.c:421
AV_CRC_32_IEEE
@ AV_CRC_32_IEEE
Definition crc.h:52
av_dict_get
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition dict.c:60
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition error.h:61
AVERROR
#define AVERROR(e)
Definition error.h:45
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition log.h:236
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition log.h:216
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition log.h:226
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition log.c:241
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition mathematics.c:129
av_rescale_rnd
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
Rescale a 64-bit integer with specified rounding.
Definition mathematics.c:58
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition mathematics.c:142
AV_ROUND_UP
@ AV_ROUND_UP
Round toward +infinity.
Definition mathematics.h:134
av_dynarray_add_nofree
int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem)
Add an element to a dynamic array.
Definition mem.c:313
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition avutil.h:201
AVMEDIA_TYPE_SUBTITLE
@ AVMEDIA_TYPE_SUBTITLE
Definition avutil.h:203
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
AVMEDIA_TYPE_DATA
@ AVMEDIA_TYPE_DATA
Opaque data information usually continuous.
Definition avutil.h:202
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition avutil.h:247
AV_TIME_BASE
#define AV_TIME_BASE
Internal time base represented as integer.
Definition avutil.h:253
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition version.h:85
h264.h
H.264 common definitions.
H264_NAL_SPS
@ H264_NAL_SPS
Definition h264.h:41
H264_NAL_SLICE
@ H264_NAL_SLICE
Definition h264.h:35
H264_NAL_AUD
@ H264_NAL_AUD
Definition h264.h:43
H264_NAL_IDR_SLICE
@ H264_NAL_IDR_SLICE
Definition h264.h:39
b
#define b
Definition input.c:43
AV_WB32
#define AV_WB32(p, v)
Definition intreadwrite.h:415
AV_RL32
#define AV_RL32(p)
Definition intreadwrite.h:419
AV_RB32
#define AV_RB32(p)
Definition intreadwrite.h:412
AV_WB16
#define AV_WB16(p, v)
Definition intreadwrite.h:401
AV_RB24
#define AV_RB24(x)
Definition intreadwrite.h:440
AV_RB16
#define AV_RB16(p)
Definition intreadwrite.h:398
HEVC_NAL_AUD
@ HEVC_NAL_AUD
Definition hevc.h:64
HEVC_NAL_RSV_VCL24
@ HEVC_NAL_RSV_VCL24
Definition hevc.h:53
HEVC_NAL_VPS
@ HEVC_NAL_VPS
Definition hevc.h:61
av_get_audio_frame_duration2
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
Definition utils.c:823
VVC_OPI_NUT
@ VVC_OPI_NUT
Definition vvc.h:41
VVC_VPS_NUT
@ VVC_VPS_NUT
Definition vvc.h:43
VVC_AUD_NUT
@ VVC_AUD_NUT
Definition vvc.h:49
ffformatcontext
static av_always_inline FFFormatContext * ffformatcontext(AVFormatContext *s)
Definition internal.h:130
ff_stream_add_bitstream_filter
int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *args)
Add a bitstream filter to a stream.
Definition mux.c:1294
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:88
version
version
Definition libkvazaar.c:313
av_log_once
void av_log_once(void *avcl, int initial_level, int subsequent_level, int *state, const char *fmt,...)
Definition log.c:450
mask
static const uint16_t mask[17]
Definition lzw.c:38
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
MKTAG
#define MKTAG(a, b, c, d)
Definition macros.h:55
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
mem.h
Memory handling functions.
tag
uint32_t tag
Definition movenc.c:2087
STREAM_TYPE_VIDEO_MPEG4
#define STREAM_TYPE_VIDEO_MPEG4
Definition mpeg.h:56
STREAM_TYPE_VIDEO_CAVS
#define STREAM_TYPE_VIDEO_CAVS
Definition mpeg.h:60
STREAM_TYPE_AUDIO_MPEG2
#define STREAM_TYPE_AUDIO_MPEG2
Definition mpeg.h:52
STREAM_TYPE_VIDEO_HEVC
#define STREAM_TYPE_VIDEO_HEVC
Definition mpeg.h:58
STREAM_TYPE_VIDEO_VVC
#define STREAM_TYPE_VIDEO_VVC
Definition mpeg.h:59
STREAM_TYPE_PRIVATE_DATA
#define STREAM_TYPE_PRIVATE_DATA
Definition mpeg.h:54
STREAM_TYPE_AUDIO_AAC
#define STREAM_TYPE_AUDIO_AAC
Definition mpeg.h:55
STREAM_TYPE_VIDEO_H264
#define STREAM_TYPE_VIDEO_H264
Definition mpeg.h:57
STREAM_TYPE_AUDIO_MPEG1
#define STREAM_TYPE_AUDIO_MPEG1
Definition mpeg.h:51
STREAM_TYPE_VIDEO_MPEG2
#define STREAM_TYPE_VIDEO_MPEG2
Definition mpeg.h:50
STREAM_ID_PRIVATE_STREAM_2
#define STREAM_ID_PRIVATE_STREAM_2
Definition mpegts.h:188
STREAM_TYPE_VIDEO_AVS3
#define STREAM_TYPE_VIDEO_AVS3
Definition mpegts.h:153
M2TS_TEXTSUB_PID
#define M2TS_TEXTSUB_PID
Definition mpegts.h:79
STREAM_TYPE_VIDEO_DIRAC
#define STREAM_TYPE_VIDEO_DIRAC
Definition mpegts.h:155
STREAM_ID_PADDING_STREAM
#define STREAM_ID_PADDING_STREAM
Definition mpegts.h:187
DVB_EXTENSION_DESCRIPTOR
#define DVB_EXTENSION_DESCRIPTOR
Definition mpegts.h:227
STREAM_TYPE_BLURAY_SUBTITLE_TEXT
#define STREAM_TYPE_BLURAY_SUBTITLE_TEXT
Definition mpegts.h:168
M2TS_PGSSUB_START_PID
#define M2TS_PGSSUB_START_PID
Definition mpegts.h:78
FIRST_OTHER_PID
#define FIRST_OTHER_PID
Definition mpegts.h:65
STREAM_TYPE_VIDEO_VC1
#define STREAM_TYPE_VIDEO_VC1
Definition mpegts.h:154
PAT_PID
#define PAT_PID
Definition mpegts.h:41
STREAM_TYPE_ATSC_AUDIO_AC3
#define STREAM_TYPE_ATSC_AUDIO_AC3
Definition mpegts.h:172
STREAM_TYPE_BLURAY_AUDIO_EAC3
#define STREAM_TYPE_BLURAY_AUDIO_EAC3
Definition mpegts.h:162
STREAM_ID_METADATA_STREAM
#define STREAM_ID_METADATA_STREAM
Definition mpegts.h:195
M2TS_VIDEO_PID
#define M2TS_VIDEO_PID
Definition mpegts.h:75
STREAM_TYPE_BLURAY_SUBTITLE_PGS
#define STREAM_TYPE_BLURAY_SUBTITLE_PGS
Definition mpegts.h:167
NETWORK_NAME_DESCRIPTOR
#define NETWORK_NAME_DESCRIPTOR
Definition mpegts.h:218
PAT_TID
#define PAT_TID
Definition mpegts.h:84
SUBTITLING_DESCRIPTOR
#define SUBTITLING_DESCRIPTOR
Definition mpegts.h:223
M2TS_AUDIO_START_PID
#define M2TS_AUDIO_START_PID
Definition mpegts.h:77
STREAM_ID_EMM_STREAM
#define STREAM_ID_EMM_STREAM
Definition mpegts.h:192
STREAM_TYPE_BLURAY_AUDIO_TRUEHD
#define STREAM_TYPE_BLURAY_AUDIO_TRUEHD
Definition mpegts.h:161
PMT_TID
#define PMT_TID
Definition mpegts.h:86
STREAM_TYPE_BLURAY_AUDIO_DTS
#define STREAM_TYPE_BLURAY_AUDIO_DTS
Definition mpegts.h:160
SDT_TID
#define SDT_TID
Definition mpegts.h:92
STREAM_TYPE_AUDIO_AAC_LATM
#define STREAM_TYPE_AUDIO_AAC_LATM
Definition mpegts.h:132
SDT_PID
#define SDT_PID
Definition mpegts.h:47
ISO_639_LANGUAGE_DESCRIPTOR
#define ISO_639_LANGUAGE_DESCRIPTOR
Definition mpegts.h:202
STREAM_IDENTIFIER_DESCRIPTOR
#define STREAM_IDENTIFIER_DESCRIPTOR
Definition mpegts.h:221
TELETEXT_DESCRIPTOR
#define TELETEXT_DESCRIPTOR
Definition mpegts.h:222
NIT_TID
#define NIT_TID
Definition mpegts.h:90
STREAM_TYPE_VIDEO_AVS2
#define STREAM_TYPE_VIDEO_AVS2
Definition mpegts.h:152
STREAM_TYPE_ATSC_AUDIO_EAC3
#define STREAM_TYPE_ATSC_AUDIO_EAC3
Definition mpegts.h:173
REGISTRATION_DESCRIPTOR
#define REGISTRATION_DESCRIPTOR
Definition mpegts.h:201
SERVICE_DESCRIPTOR
#define SERVICE_DESCRIPTOR
Definition mpegts.h:220
STREAM_TYPE_BLURAY_AUDIO_PCM_BLURAY
#define STREAM_TYPE_BLURAY_AUDIO_PCM_BLURAY
Definition mpegts.h:158
STREAM_ID_PROGRAM_STREAM_DIRECTORY
#define STREAM_ID_PROGRAM_STREAM_DIRECTORY
Definition mpegts.h:197
STREAM_TYPE_BLURAY_AUDIO_AC3
#define STREAM_TYPE_BLURAY_AUDIO_AC3
Definition mpegts.h:159
STREAM_ID_DSMCC_STREAM
#define STREAM_ID_DSMCC_STREAM
Definition mpegts.h:193
NIT_PID
#define NIT_PID
Definition mpegts.h:46
STREAM_ID_EXTENDED_STREAM_ID
#define STREAM_ID_EXTENDED_STREAM_ID
Definition mpegts.h:196
ENHANCED_AC3_DESCRIPTOR
#define ENHANCED_AC3_DESCRIPTOR
Definition mpegts.h:225
LAST_OTHER_PID
#define LAST_OTHER_PID
Definition mpegts.h:66
DATA_COMPONENT_DESCRIPTOR
#define DATA_COMPONENT_DESCRIPTOR
Definition mpegts.h:238
STREAM_ID_PROGRAM_STREAM_MAP
#define STREAM_ID_PROGRAM_STREAM_MAP
Definition mpegts.h:185
STREAM_ID_ECM_STREAM
#define STREAM_ID_ECM_STREAM
Definition mpegts.h:191
NULL_PID
#define NULL_PID
Definition mpegts.h:70
METADATA_DESCRIPTOR
#define METADATA_DESCRIPTOR
Definition mpegts.h:206
AC3_DESCRIPTOR
#define AC3_DESCRIPTOR
Definition mpegts.h:224
STREAM_ID_PRIVATE_STREAM_1
#define STREAM_ID_PRIVATE_STREAM_1
Definition mpegts.h:186
STREAM_ID_TYPE_E_STREAM
#define STREAM_ID_TYPE_E_STREAM
Definition mpegts.h:194
STREAM_ID_VIDEO_STREAM_0
#define STREAM_ID_VIDEO_STREAM_0
Definition mpegts.h:190
STREAM_TYPE_BLURAY_AUDIO_DTS_HD
#define STREAM_TYPE_BLURAY_AUDIO_DTS_HD
Definition mpegts.h:163
SYSTEM_CLOCK_FREQUENCY_DIVISOR
#define SYSTEM_CLOCK_FREQUENCY_DIVISOR
Definition mpegts.h:38
SYNC_BYTE
#define SYNC_BYTE
Definition mpegts.h:36
M2TS_PMT_PID
#define M2TS_PMT_PID
Definition mpegts.h:73
STREAM_TYPE_METADATA
#define STREAM_TYPE_METADATA
Definition mpegts.h:140
SERVICE_LIST_DESCRIPTOR
#define SERVICE_LIST_DESCRIPTOR
Definition mpegts.h:219
TS_PACKET_SIZE
#define TS_PACKET_SIZE
Definition mpegts.h:29
STUFFING_BYTE
#define STUFFING_BYTE
Definition mpegts.h:37
STREAM_ID_AUDIO_STREAM_0
#define STREAM_ID_AUDIO_STREAM_0
Definition mpegts.h:189
mpegts_muxer_class
static const AVClass mpegts_muxer_class
Definition mpegtsenc.c:2448
MPEGTS_FLAG_OMIT_RAI
#define MPEGTS_FLAG_OMIT_RAI
Definition mpegtsenc.c:121
SDT_RETRANS_TIME
#define SDT_RETRANS_TIME
Definition mpegtsenc.c:247
opus_get_packet_samples
static int opus_get_packet_samples(AVFormatContext *s, AVPacket *pkt)
Definition mpegtsenc.c:1848
mpegts_write_nit
static void mpegts_write_nit(AVFormatContext *s)
Definition mpegtsenc.c:893
enable_pcr_generation_for_stream
static void enable_pcr_generation_for_stream(AVFormatContext *s, AVStream *pcr_st)
Definition mpegtsenc.c:1045
get_pes_stream_id
static int get_pes_stream_id(AVFormatContext *s, AVStream *st, int stream_id, int *async)
Definition mpegtsenc.c:1478
HEVC_NAL_TYPE
#define HEVC_NAL_TYPE(state)
Definition mpegtsenc.c:1912
mpegts_deinit
static void mpegts_deinit(AVFormatContext *s)
Definition mpegtsenc.c:2329
mpegts_write_packet_internal
static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
Definition mpegtsenc.c:1914
mpegts_write_section1
static int mpegts_write_section1(MpegTSSection *s, int tid, int id, int version, int sec_num, int last_sec_num, uint8_t *buf, int len)
Definition mpegtsenc.c:213
write_pts
static void write_pts(uint8_t *q, int fourbits, int64_t pts)
Definition mpegtsenc.c:1431
H264_NAL_TYPE
#define H264_NAL_TYPE(state)
Definition mpegtsenc.c:1911
extend_af
static void extend_af(uint8_t *pkt, int size)
Definition mpegtsenc.c:1462
mpegts_insert_pcr_only
static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
Definition mpegtsenc.c:1424
section_write_packet
static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
Definition mpegtsenc.c:990
write_packet
static void write_packet(AVFormatContext *s, const uint8_t *packet)
Definition mpegtsenc.c:976
mpegts_write_packet
static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition mpegtsenc.c:2311
select_pcr_streams
static void select_pcr_streams(AVFormatContext *s)
Definition mpegtsenc.c:1076
PCR_TIME_BASE
#define PCR_TIME_BASE
Definition mpegtsenc.c:45
mpegts_write_flush
static void mpegts_write_flush(AVFormatContext *s)
Definition mpegtsenc.c:2286
put_arib_caption_descriptor
static int put_arib_caption_descriptor(AVFormatContext *s, uint8_t **q_ptr, AVCodecParameters *codecpar)
Definition mpegtsenc.c:303
MPEGTS_FLAG_REEMIT_PAT_PMT
#define MPEGTS_FLAG_REEMIT_PAT_PMT
Definition mpegtsenc.c:115
put_registration_descriptor
static void put_registration_descriptor(uint8_t **q_ptr, uint32_t tag)
Definition mpegtsenc.c:347
PCR_RETRANS_TIME
#define PCR_RETRANS_TIME
Definition mpegtsenc.c:249
mpegts_write_pes
static void mpegts_write_pes(AVFormatContext *s, AVStream *st, const uint8_t *payload, int payload_size, int64_t pts, int64_t dts, int key, int stream_id)
Definition mpegtsenc.c:1513
SECTION_LENGTH
#define SECTION_LENGTH
Definition mpegtsenc.c:147
ff_check_h264_startcode
int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
Check presence of H264 startcode.
Definition mpegtsenc.c:1839
putbuf
static void putbuf(uint8_t **q_ptr, const uint8_t *buf, size_t len)
Definition mpegtsenc.c:297
DEFAULT_PES_PAYLOAD_SIZE
#define DEFAULT_PES_PAYLOAD_SIZE
Definition mpegtsenc.c:143
put16
static void put16(uint8_t **q_ptr, int val)
Definition mpegtsenc.c:204
get_pcr
static int64_t get_pcr(const MpegTSWrite *ts)
Definition mpegtsenc.c:970
get_dvb_stream_type
static int get_dvb_stream_type(AVFormatContext *s, AVStream *st)
Definition mpegtsenc.c:359
mpegts_write_sdt
static void mpegts_write_sdt(AVFormatContext *s)
Definition mpegtsenc.c:855
MPEGTS_FLAG_AAC_LATM
#define MPEGTS_FLAG_AAC_LATM
Definition mpegtsenc.c:116
mpegts_write_end
static int mpegts_write_end(AVFormatContext *s)
Definition mpegtsenc.c:2321
DVB_PRIVATE_NETWORK_START
#define DVB_PRIVATE_NETWORK_START
Definition mpegtsenc.c:49
NIT_RETRANS_TIME
#define NIT_RETRANS_TIME
Definition mpegtsenc.c:250
check_h26x_startcode
static int check_h26x_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt, const char *codec)
Definition mpegtsenc.c:1822
PAT_RETRANS_TIME
#define PAT_RETRANS_TIME
Definition mpegtsenc.c:248
mpegts_write_section
static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
Definition mpegtsenc.c:150
mpegts_insert_pcr_only_pid
static void mpegts_insert_pcr_only_pid(AVFormatContext *s, int pid, int cc, int discontinuity)
Definition mpegtsenc.c:1398
set_af_flag
static void set_af_flag(uint8_t *pkt, int flag)
Definition mpegtsenc.c:1446
MPEGTS_FLAG_DISCONT
#define MPEGTS_FLAG_DISCONT
Definition mpegtsenc.c:119
MPEGTS_FLAG_PAT_PMT_AT_FRAMES
#define MPEGTS_FLAG_PAT_PMT_AT_FRAMES
Definition mpegtsenc.c:117
MPEGTS_FLAG_NIT
#define MPEGTS_FLAG_NIT
Definition mpegtsenc.c:120
DEFAULT_PROVIDER_NAME
#define DEFAULT_PROVIDER_NAME
Definition mpegtsenc.c:243
mpegts_check_bitstream
static int mpegts_check_bitstream(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
Definition mpegtsenc.c:2355
mpegts_write_pat
static void mpegts_write_pat(AVFormatContext *s)
Definition mpegtsenc.c:276
mpegts_init
static int mpegts_init(AVFormatContext *s)
Definition mpegtsenc.c:1112
mpegts_add_service
static MpegTSService * mpegts_add_service(AVFormatContext *s, int sid, const AVDictionary *metadata, AVProgram *program)
Definition mpegtsenc.c:996
h26x_prefix_aud
static uint8_t * h26x_prefix_aud(const uint8_t *aud, const int aud_size, const uint8_t *extra_data, const int extra_size, AVPacket *pkt, int *size)
Definition mpegtsenc.c:1896
OFFSET
#define OFFSET(x)
Definition mpegtsenc.c:2381
encode_str8
static int encode_str8(uint8_t *buf, const char *str)
Definition mpegtsenc.c:938
mpegts_write_pmt
static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
Definition mpegtsenc.c:516
MPEGTS_FLAG_SYSTEM_B
#define MPEGTS_FLAG_SYSTEM_B
Definition mpegtsenc.c:118
DEFAULT_SERVICE_NAME
#define DEFAULT_SERVICE_NAME
Definition mpegtsenc.c:244
get_m2ts_stream_type
static int get_m2ts_stream_type(AVFormatContext *s, AVStream *st)
Definition mpegtsenc.c:463
VVC_NAL_TYPE
#define VVC_NAL_TYPE(state)
Definition mpegtsenc.c:1913
mpegts_insert_null_packet
static void mpegts_insert_null_packet(AVFormatContext *s)
Definition mpegtsenc.c:1383
retransmit_si_info
static void retransmit_si_info(AVFormatContext *s, int force_pat, int force_sdt, int force_nit, int64_t pcr)
Definition mpegtsenc.c:1335
MPEGTS_SERVICE_TYPE_DIGITAL_RADIO
@ MPEGTS_SERVICE_TYPE_DIGITAL_RADIO
Definition mpegtsenc.c:75
MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV
@ MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV
Definition mpegtsenc.c:81
MPEGTS_SERVICE_TYPE_TELETEXT
@ MPEGTS_SERVICE_TYPE_TELETEXT
Definition mpegtsenc.c:76
MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO
@ MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO
Definition mpegtsenc.c:77
MPEGTS_SERVICE_TYPE_DIGITAL_TV
@ MPEGTS_SERVICE_TYPE_DIGITAL_TV
Definition mpegtsenc.c:74
MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV
@ MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV
Definition mpegtsenc.c:80
MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV
@ MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV
Definition mpegtsenc.c:79
MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV
@ MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV
Definition mpegtsenc.c:78
get_ts_payload_start
static uint8_t * get_ts_payload_start(uint8_t *pkt)
Definition mpegtsenc.c:1470
write_pcr_bits
static int write_pcr_bits(uint8_t *buf, int64_t pcr)
Definition mpegtsenc.c:1368
FF_OFMT_FLAG_ALLOW_FLUSH
#define FF_OFMT_FLAG_ALLOW_FLUSH
This flag indicates that the muxer stores data internally and supports flushing it.
Definition mux.h:38
data
const char data[16]
Definition mxf.c:149
av_malloc
#define av_malloc(s)
Definition ops_static.c:52
opt.h
AVOptions.
av_bswap32
#define av_bswap32
Definition bswap.h:47
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition sinewin_tablegen.c:29
snprintf
#define snprintf
Definition snprintf.h:34
code
const uint8_t * code
Definition spdifenc.c:433
startcode.h
Accelerated start code search function for start codes common to MPEG-1/2/4 video,...
avpriv_find_start_code
const uint8_t * avpriv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state)
AC3HeaderInfo
Coded AC-3 header values up to the lfeon element, plus derived values.
Definition ac3_parser_internal.h:34
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition channel_layout.h:329
AVClass
Describe the class of an AVClass context structure.
Definition log.h:76
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition codec_par.h:49
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition codec_par.h:75
AVCodecParameters::ch_layout
AVChannelLayout ch_layout
The channel layout and number of channels.
Definition codec_par.h:207
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition codec_par.h:53
AVCodecParameters::profile
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition codec_par.h:135
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition codec_par.h:71
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition codec_par.h:57
AVCodecParameters::sample_rate
int sample_rate
The number of audio samples per second.
Definition codec_par.h:213
AVCodecParameters::initial_padding
int initial_padding
Number of padding audio samples at the start.
Definition codec_par.h:239
AVDictionaryEntry::value
char * value
Definition dict.h:92
AVFormatContext
Format I/O context.
Definition avformat.h:1333
AVFormatContext::pb
AVIOContext * pb
I/O context.
Definition avformat.h:1375
AVFormatContext::oformat
const struct AVOutputFormat * oformat
The output container format.
Definition avformat.h:1352
AVFormatContext::streams
AVStream ** streams
A list of all streams in the file.
Definition avformat.h:1401
AVOption
AVOption.
Definition opt.h:428
AVPacket
This structure stores compressed data.
Definition packet.h:580
AVPacket::size
int size
Definition packet.h:604
AVPacket::dts
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
Definition packet.h:602
AVPacket::data
uint8_t * data
Definition packet.h:603
AVProgram
New fields can be added to the end with minor version bumps.
Definition avformat.h:1257
AVProgram::nb_stream_indexes
unsigned int nb_stream_indexes
Definition avformat.h:1262
AVProgram::stream_index
unsigned int * stream_index
Definition avformat.h:1261
AVProgram::metadata
AVDictionary * metadata
Definition avformat.h:1263
AVRational::num
int num
Numerator.
Definition rational.h:59
AVRational::den
int den
Denominator.
Definition rational.h:60
AVStream
Stream structure.
Definition avformat.h:766
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition avformat.h:789
AVStream::nb_frames
int64_t nb_frames
number of frames in this stream if known or 0
Definition avformat.h:827
AVStream::metadata
AVDictionary * metadata
Definition avformat.h:846
AVStream::priv_data
void * priv_data
Definition avformat.h:791
AVStream::id
int id
Format-specific stream ID.
Definition avformat.h:778
AVStream::index
int index
stream index in AVFormatContext
Definition avformat.h:772
AVStream::avg_frame_rate
AVRational avg_frame_rate
Average framerate.
Definition avformat.h:855
AVStream::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition avformat.h:805
AVStream::disposition
int disposition
Stream disposition - a combination of AV_DISPOSITION_* flags.
Definition avformat.h:835
DVBAC3Descriptor::asvc
uint8_t asvc
Definition mpegts.h:284
DVBAC3Descriptor::bsid_flag
uint8_t bsid_flag
Definition mpegts.h:277
DVBAC3Descriptor::mainid_flag
uint8_t mainid_flag
Definition mpegts.h:278
DVBAC3Descriptor::bsid
uint8_t bsid
Definition mpegts.h:282
DVBAC3Descriptor::component_type_flag
uint8_t component_type_flag
Definition mpegts.h:276
DVBAC3Descriptor::mainid
uint8_t mainid
Definition mpegts.h:283
DVBAC3Descriptor::component_type
uint8_t component_type
Definition mpegts.h:281
DVBAC3Descriptor::asvc_flag
uint8_t asvc_flag
Definition mpegts.h:279
FFFormatContext::pkt
AVPacket * pkt
Used to hold temporary packets for the generic demuxing code.
Definition internal.h:111
MpegTSSection::write_packet
void(* write_packet)(struct MpegTSSection *s, const uint8_t *packet)
Definition mpegtsenc.c:58
MpegTSSection::discontinuity
int discontinuity
Definition mpegtsenc.c:57
MpegTSSection::opaque
void * opaque
Definition mpegtsenc.c:59
MpegTSService::program
AVProgram * program
Definition mpegtsenc.c:69
MpegTSService::provider_name
uint8_t provider_name[256]
Definition mpegtsenc.c:67
MpegTSService::name
uint8_t name[256]
Definition mpegtsenc.c:66
MpegTSService::pmt
MpegTSSection pmt
Definition mpegtsenc.c:64
MpegTSWriteStream::payload_pts
int64_t payload_pts
Definition mpegtsenc.c:259
MpegTSWriteStream::opus_pending_trim_start
int opus_pending_trim_start
Definition mpegtsenc.c:271
MpegTSWriteStream::payload
uint8_t * payload
Definition mpegtsenc.c:262
MpegTSWriteStream::first_timestamp_checked
int first_timestamp_checked
first pts/dts check needed
Definition mpegtsenc.c:257
MpegTSWriteStream::amux
AVFormatContext * amux
Definition mpegtsenc.c:263
MpegTSWriteStream::payload_dts
int64_t payload_dts
Definition mpegtsenc.c:260
MpegTSWriteStream::dvb_ac3_desc
DVBAC3Descriptor * dvb_ac3_desc
Definition mpegtsenc.c:273
MpegTSWrite::next_pcr
int64_t next_pcr
Definition mpegtsenc.c:96
MpegTSWrite::sdt
MpegTSSection sdt
Definition mpegtsenc.c:86
MpegTSWrite::omit_video_pes_length
int omit_video_pes_length
Definition mpegtsenc.c:134
MpegTSWrite::pcr_pid
int pcr_pid
user-specified separate PCR PID (-1 = use video PID)
Definition mpegtsenc.c:136
MpegTSWrite::last_pat_ts
int64_t last_pat_ts
Definition mpegtsenc.c:128
MpegTSWrite::pcr_stream_last_pcr
int64_t pcr_stream_last_pcr
last PCR sent on the dedicated PID
Definition mpegtsenc.c:138
MpegTSWrite::mux_rate
int mux_rate
set to 1 when VBR
Definition mpegtsenc.c:97
MpegTSWrite::pcr_period_ms
int pcr_period_ms
Definition mpegtsenc.c:114
MpegTSWrite::pmt_start_pid
int pmt_start_pid
Definition mpegtsenc.c:106
MpegTSWrite::tables_version
int tables_version
Definition mpegtsenc.c:124
MpegTSWrite::last_sdt_ts
int64_t last_sdt_ts
Definition mpegtsenc.c:129
MpegTSWrite::services
MpegTSService ** services
Definition mpegtsenc.c:88
MpegTSWrite::provider_name
uint8_t provider_name[256]
Definition mpegtsenc.c:132
MpegTSWrite::m2ts_video_pid
int m2ts_video_pid
Definition mpegtsenc.c:109
MpegTSWrite::pat
MpegTSSection pat
Definition mpegtsenc.c:85
MpegTSWrite::sdt_period_us
int64_t sdt_period_us
Definition mpegtsenc.c:126
MpegTSWrite::last_nit_ts
int64_t last_nit_ts
Definition mpegtsenc.c:130
MpegTSWrite::pes_payload_size
int pes_payload_size
Definition mpegtsenc.c:98
MpegTSWrite::original_network_id
int original_network_id
Definition mpegtsenc.c:102
MpegTSWrite::nb_services
int nb_services
Definition mpegtsenc.c:93
MpegTSWrite::nit_period
int64_t nit_period
Definition mpegtsenc.c:92
MpegTSWrite::m2ts_textsub_pid
int m2ts_textsub_pid
Definition mpegtsenc.c:112
MpegTSWrite::m2ts_audio_pid
int m2ts_audio_pid
Definition mpegtsenc.c:110
MpegTSWrite::pkt
AVPacket * pkt
Definition mpegtsenc.c:89
MpegTSWrite::first_dts_checked
int first_dts_checked
Definition mpegtsenc.c:95
MpegTSWrite::pat_period_us
int64_t pat_period_us
Definition mpegtsenc.c:125
MpegTSWrite::av_class
const AVClass * av_class
Definition mpegtsenc.c:84
MpegTSWrite::total_size
int64_t total_size
Definition mpegtsenc.c:99
MpegTSWrite::service_type
int service_type
Definition mpegtsenc.c:104
MpegTSWrite::first_pcr
int64_t first_pcr
Definition mpegtsenc.c:94
MpegTSWrite::pat_period
int64_t pat_period
Definition mpegtsenc.c:91
MpegTSWrite::nit
MpegTSSection nit
Definition mpegtsenc.c:87
MpegTSWrite::transport_stream_id
int transport_stream_id
Definition mpegtsenc.c:101
MpegTSWrite::nit_period_us
int64_t nit_period_us
Definition mpegtsenc.c:127
MpegTSWrite::m2ts_pgssub_pid
int m2ts_pgssub_pid
Definition mpegtsenc.c:111
MpegTSWrite::pcr_stream_pcr_period
int64_t pcr_stream_pcr_period
PCR period for the dedicated stream.
Definition mpegtsenc.c:137
MpegTSWrite::sdt_period
int64_t sdt_period
Definition mpegtsenc.c:90
av_free
#define av_free(p)
Definition tableprint_vlc.h:34
av_mallocz
#define av_mallocz(s)
Definition tableprint_vlc.h:31
av_freep
#define av_freep(p)
Definition tableprint_vlc.h:35
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
pts
static int64_t pts
Definition transcode_aac.c:649
size
int size
Definition twinvq_data.h:10344
codec_id
enum AVCodecID codec_id
Definition vaapi_decode.c:410
len
int len
Definition vorbis_enc_data.h:426
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