FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/mpegtsenc.c
Date: 2025-01-20 09:27:23
Exec Total Coverage
Lines: 661 1399 47.2%
Functions: 32 40 80.0%
Branches: 321 890 36.1%
Line Branch Exec Source
1 /*
2 * MPEG-2 transport stream (aka DVB) muxer
3 * Copyright (c) 2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/avassert.h"
23 #include "libavutil/bswap.h"
24 #include "libavutil/crc.h"
25 #include "libavutil/dict.h"
26 #include "libavutil/intreadwrite.h"
27 #include "libavutil/mathematics.h"
28 #include "libavutil/mem.h"
29 #include "libavutil/opt.h"
30
31 #include "libavcodec/ac3_parser_internal.h"
32 #include "libavcodec/bytestream.h"
33 #include "libavcodec/defs.h"
34 #include "libavcodec/h264.h"
35 #include "libavcodec/hevc/hevc.h"
36 #include "libavcodec/vvc.h"
37 #include "libavcodec/startcode.h"
38
39 #include "avformat.h"
40 #include "avio_internal.h"
41 #include "internal.h"
42 #include "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
54 typedef 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 } MpegTSSection;
61
62 typedef struct MpegTSService {
63 MpegTSSection pmt; /* MPEG-2 PMT table context */
64 int sid; /* service ID */
65 uint8_t name[256];
66 uint8_t provider_name[256];
67 int pcr_pid;
68 AVProgram *program;
69 } MpegTSService;
70
71 // service_type values as defined in ETSI 300 468
72 enum {
73 MPEGTS_SERVICE_TYPE_DIGITAL_TV = 0x01,
74 MPEGTS_SERVICE_TYPE_DIGITAL_RADIO = 0x02,
75 MPEGTS_SERVICE_TYPE_TELETEXT = 0x03,
76 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO = 0x0A,
77 MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV = 0x11,
78 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV = 0x16,
79 MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV = 0x19,
80 MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV = 0x1F,
81 };
82 typedef struct MpegTSWrite {
83 const AVClass *av_class;
84 MpegTSSection pat; /* MPEG-2 PAT table */
85 MpegTSSection sdt; /* MPEG-2 SDT table context */
86 MpegTSSection nit; /* MPEG-2 NIT table context */
87 MpegTSService **services;
88 AVPacket *pkt;
89 int64_t sdt_period; /* SDT period in PCR time base */
90 int64_t pat_period; /* PAT/PMT period in PCR time base */
91 int64_t nit_period; /* NIT period in PCR time base */
92 int nb_services;
93 int64_t first_pcr;
94 int first_dts_checked;
95 int64_t next_pcr;
96 int mux_rate; ///< set to 1 when VBR
97 int pes_payload_size;
98 int64_t total_size;
99
100 int transport_stream_id;
101 int original_network_id;
102 int service_id;
103 int service_type;
104
105 int pmt_start_pid;
106 int start_pid;
107 int m2ts_mode;
108 int m2ts_video_pid;
109 int m2ts_audio_pid;
110 int m2ts_pgssub_pid;
111 int m2ts_textsub_pid;
112
113 int pcr_period_ms;
114 #define MPEGTS_FLAG_REEMIT_PAT_PMT 0x01
115 #define MPEGTS_FLAG_AAC_LATM 0x02
116 #define MPEGTS_FLAG_PAT_PMT_AT_FRAMES 0x04
117 #define MPEGTS_FLAG_SYSTEM_B 0x08
118 #define MPEGTS_FLAG_DISCONT 0x10
119 #define MPEGTS_FLAG_NIT 0x20
120 #define MPEGTS_FLAG_OMIT_RAI 0x40
121 int flags;
122 int copyts;
123 int tables_version;
124 int64_t pat_period_us;
125 int64_t sdt_period_us;
126 int64_t nit_period_us;
127 int64_t last_pat_ts;
128 int64_t last_sdt_ts;
129 int64_t last_nit_ts;
130
131 uint8_t provider_name[256];
132
133 int omit_video_pes_length;
134 } MpegTSWrite;
135
136 /* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
137 #define DEFAULT_PES_HEADER_FREQ 16
138 #define DEFAULT_PES_PAYLOAD_SIZE ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
139
140 /* The section length is 12 bits. The first 2 are set to 0, the remaining
141 * 10 bits should not exceed 1021. */
142 #define SECTION_LENGTH 1020
143
144 /* NOTE: 4 bytes must be left at the end for the crc32 */
145 1205 static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
146 {
147 unsigned int crc;
148 unsigned char packet[TS_PACKET_SIZE];
149 const unsigned char *buf_ptr;
150 unsigned char *q;
151 int first, b, len1, left;
152
153 2410 crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE),
154 1205 -1, buf, len - 4));
155
156 1205 buf[len - 4] = (crc >> 24) & 0xff;
157 1205 buf[len - 3] = (crc >> 16) & 0xff;
158 1205 buf[len - 2] = (crc >> 8) & 0xff;
159 1205 buf[len - 1] = crc & 0xff;
160
161 /* send each packet */
162 1205 buf_ptr = buf;
163
2/2
✓ Branch 0 taken 1205 times.
✓ Branch 1 taken 1205 times.
 2410 while (len > 0) {
164 1205 first = buf == buf_ptr;
165 1205 q = packet;
166 1205 *q++ = SYNC_BYTE;
167 1205 b = s->pid >> 8;
168
1/2
✓ Branch 0 taken 1205 times.
✗ Branch 1 not taken.
 1205 if (first)
169 1205 b |= 0x40;
170 1205 *q++ = b;
171 1205 *q++ = s->pid;
172 1205 s->cc = s->cc + 1 & 0xf;
173 1205 *q++ = 0x10 | s->cc;
174
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1205 times.
 1205 if (s->discontinuity) {
175 ✗ q[-1] |= 0x20;
176 ✗ *q++ = 1;
177 ✗ *q++ = 0x80;
178 ✗ s->discontinuity = 0;
179 }
180
1/2
✓ Branch 0 taken 1205 times.
✗ Branch 1 not taken.
 1205 if (first)
181 1205 *q++ = 0; /* 0 offset */
182 1205 len1 = TS_PACKET_SIZE - (q - packet);
183
1/2
✓ Branch 0 taken 1205 times.
✗ Branch 1 not taken.
 1205 if (len1 > len)
184 1205 len1 = len;
185 1205 memcpy(q, buf_ptr, len1);
186 1205 q += len1;
187 /* add known padding data */
188 1205 left = TS_PACKET_SIZE - (q - packet);
189
1/2
✓ Branch 0 taken 1205 times.
✗ Branch 1 not taken.
 1205 if (left > 0)
190 1205 memset(q, STUFFING_BYTE, left);
191
192 1205 s->write_packet(s, packet);
193
194 1205 buf_ptr += len1;
195 1205 len -= len1;
196 }
197 1205 }
198
199 4829 static inline void put16(uint8_t **q_ptr, int val)
200 {
201 uint8_t *q;
202 4829 q = *q_ptr;
203 4829 *q++ = val >> 8;
204 4829 *q++ = val;
205 4829 *q_ptr = q;
206 4829 }
207
208 1205 static int mpegts_write_section1(MpegTSSection *s, int tid, int id,
209 int version, int sec_num, int last_sec_num,
210 uint8_t *buf, int len)
211 {
212 uint8_t section[1024], *q;
213 unsigned int tot_len;
214 /* reserved_future_use field must be set to 1 for SDT and NIT */
215
3/4
✓ Branch 0 taken 1046 times.
✓ Branch 1 taken 159 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 1046 times.
 1205 unsigned int flags = (tid == SDT_TID || tid == NIT_TID) ? 0xf000 : 0xb000;
216
217 1205 tot_len = 3 + 5 + len + 4;
218 /* check if not too big */
219
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1205 times.
 1205 if (tot_len > 1024)
220 ✗ return AVERROR_INVALIDDATA;
221
222 1205 q = section;
223 1205 *q++ = tid;
224 1205 put16(&q, flags | (len + 5 + 4)); /* 5 byte header + 4 byte CRC */
225 1205 put16(&q, id);
226 1205 *q++ = 0xc1 | (version << 1); /* current_next_indicator = 1 */
227 1205 *q++ = sec_num;
228 1205 *q++ = last_sec_num;
229 1205 memcpy(q, buf, len);
230
231 1205 mpegts_write_section(s, section, tot_len);
232 1205 return 0;
233 }
234
235 /*********************************************/
236 /* mpegts writer */
237
238 #define DEFAULT_PROVIDER_NAME "FFmpeg"
239 #define DEFAULT_SERVICE_NAME "Service"
240
241 /* we retransmit the SI info at this rate */
242 #define SDT_RETRANS_TIME 500
243 #define PAT_RETRANS_TIME 100
244 #define PCR_RETRANS_TIME 20
245 #define NIT_RETRANS_TIME 500
246
247 typedef struct MpegTSWriteStream {
248 int pid; /* stream associated pid */
249 int cc;
250 int discontinuity;
251 int payload_size;
252 int first_timestamp_checked; ///< first pts/dts check needed
253 int prev_payload_key;
254 int64_t payload_pts;
255 int64_t payload_dts;
256 int payload_flags;
257 uint8_t *payload;
258 AVFormatContext *amux;
259 int data_st_warning;
260
261 int64_t pcr_period; /* PCR period in PCR time base */
262 int64_t last_pcr;
263
264 /* For Opus */
265 int opus_queued_samples;
266 int opus_pending_trim_start;
267
268 DVBAC3Descriptor *dvb_ac3_desc;
269 } MpegTSWriteStream;
270
271 523 static void mpegts_write_pat(AVFormatContext *s)
272 {
273 523 MpegTSWrite *ts = s->priv_data;
274 MpegTSService *service;
275 uint8_t data[SECTION_LENGTH], *q;
276 int i;
277
278 523 q = data;
279
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 523 times.
 523 if (ts->flags & MPEGTS_FLAG_NIT) {
280 ✗ put16(&q, 0x0000);
281 ✗ put16(&q, NIT_PID);
282 }
283
2/2
✓ Branch 0 taken 523 times.
✓ Branch 1 taken 523 times.
 1046 for (i = 0; i < ts->nb_services; i++) {
284 523 service = ts->services[i];
285 523 put16(&q, service->sid);
286 523 put16(&q, 0xe000 | service->pmt.pid);
287 }
288 523 mpegts_write_section1(&ts->pat, PAT_TID, ts->transport_stream_id, ts->tables_version, 0, 0,
289 523 data, q - data);
290 523 }
291
292 318 static void putbuf(uint8_t **q_ptr, const uint8_t *buf, size_t len)
293 {
294 318 memcpy(*q_ptr, buf, len);
295 318 *q_ptr += len;
296 318 }
297
298 ✗ static int put_arib_caption_descriptor(AVFormatContext *s, uint8_t **q_ptr,
299 AVCodecParameters *codecpar)
300 {
301 uint8_t stream_identifier;
302 uint16_t data_component_id;
303 ✗ uint8_t *q = *q_ptr;
304
305 ✗ switch (codecpar->profile) {
306 ✗ case AV_PROFILE_ARIB_PROFILE_A:
307 ✗ stream_identifier = 0x30;
308 ✗ data_component_id = 0x0008;
309 ✗ break;
310 ✗ case AV_PROFILE_ARIB_PROFILE_C:
311 ✗ stream_identifier = 0x87;
312 ✗ data_component_id = 0x0012;
313 ✗ break;
314 ✗ default:
315 ✗ av_log(s, AV_LOG_ERROR,
316 "Unset/unknown ARIB caption profile %d utilized!\n",
317 codecpar->profile);
318 ✗ return AVERROR_INVALIDDATA;
319 }
320
321 // stream_identifier_descriptor
322 ✗ *q++ = STREAM_IDENTIFIER_DESCRIPTOR; // descriptor_tag
323 ✗ *q++ = 1; // descriptor_length
324 ✗ *q++ = stream_identifier; // component_tag: stream_identifier
325
326 // data_component_descriptor, defined in ARIB STD-B10, part 2, 6.2.20
327 ✗ *q++ = DATA_COMPONENT_DESCRIPTOR; // descriptor_tag: ARIB data coding type descriptor
328 ✗ *q++ = 3; // descriptor_length
329 ✗ put16(&q, data_component_id); // data_component_id
330 // additional_arib_caption_info: defined in ARIB STD-B24, fascicle 1, Part 3, 9.6.1
331 // Here we utilize a pre-defined set of values defined in ARIB TR-B14,
332 // Fascicle 2, 4.2.8.5 for PMT usage, with the reserved bits in the middle
333 // set to 1 (as that is what every broadcaster seems to be doing in
334 // production).
335 ✗ *q++ = 0x3D; // DMF('0011'), Reserved('11'), Timing('01')
336
337 ✗ *q_ptr = q;
338
339 ✗ return 0;
340 }
341
342 33 static void put_registration_descriptor(uint8_t **q_ptr, uint32_t tag)
343 {
344 33 uint8_t *q = *q_ptr;
345 33 *q++ = REGISTRATION_DESCRIPTOR;
346 33 *q++ = 4;
347 33 *q++ = tag;
348 33 *q++ = tag >> 8;
349 33 *q++ = tag >> 16;
350 33 *q++ = tag >> 24;
351 33 *q_ptr = q;
352 33 }
353
354 532 static int get_dvb_stream_type(AVFormatContext *s, AVStream *st)
355 {
356 532 MpegTSWrite *ts = s->priv_data;
357 532 MpegTSWriteStream *ts_st = st->priv_data;
358 int stream_type;
359
360
4/23
✓ Branch 0 taken 9 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 42 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✗ Branch 9 not taken.
✓ Branch 10 taken 448 times.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 13 not taken.
✗ Branch 14 not taken.
✗ Branch 15 not taken.
✗ Branch 16 not taken.
✗ Branch 17 not taken.
✗ Branch 18 not taken.
✗ Branch 19 not taken.
✗ Branch 20 not taken.
✗ Branch 21 not taken.
✓ Branch 22 taken 33 times.
 532 switch (st->codecpar->codec_id) {
361 9 case AV_CODEC_ID_MPEG1VIDEO:
362 case AV_CODEC_ID_MPEG2VIDEO:
363 9 stream_type = STREAM_TYPE_VIDEO_MPEG2;
364 9 break;
365 ✗ case AV_CODEC_ID_MPEG4:
366 ✗ stream_type = STREAM_TYPE_VIDEO_MPEG4;
367 ✗ break;
368 42 case AV_CODEC_ID_H264:
369 42 stream_type = STREAM_TYPE_VIDEO_H264;
370 42 break;
371 ✗ case AV_CODEC_ID_HEVC:
372 ✗ stream_type = STREAM_TYPE_VIDEO_HEVC;
373 ✗ break;
374 ✗ case AV_CODEC_ID_VVC:
375 ✗ stream_type = STREAM_TYPE_VIDEO_VVC;
376 ✗ break;
377 ✗ case AV_CODEC_ID_CAVS:
378 ✗ stream_type = STREAM_TYPE_VIDEO_CAVS;
379 ✗ break;
380 ✗ case AV_CODEC_ID_AVS2:
381 ✗ stream_type = STREAM_TYPE_VIDEO_AVS2;
382 ✗ break;
383 ✗ case AV_CODEC_ID_AVS3:
384 ✗ stream_type = STREAM_TYPE_VIDEO_AVS3;
385 ✗ break;
386 ✗ case AV_CODEC_ID_DIRAC:
387 ✗ stream_type = STREAM_TYPE_VIDEO_DIRAC;
388 ✗ break;
389 ✗ case AV_CODEC_ID_VC1:
390 ✗ stream_type = STREAM_TYPE_VIDEO_VC1;
391 ✗ break;
392 448 case AV_CODEC_ID_MP2:
393 case AV_CODEC_ID_MP3:
394
1/2
✓ Branch 0 taken 448 times.
✗ Branch 1 not taken.
 448 if ( st->codecpar->sample_rate > 0
395
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 448 times.
 448 && st->codecpar->sample_rate < 32000) {
396 ✗ stream_type = STREAM_TYPE_AUDIO_MPEG2;
397 } else {
398 448 stream_type = STREAM_TYPE_AUDIO_MPEG1;
399 }
400 448 break;
401 ✗ case AV_CODEC_ID_AAC:
402 ✗ stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM)
403 ? STREAM_TYPE_AUDIO_AAC_LATM
404 ✗ : STREAM_TYPE_AUDIO_AAC;
405 ✗ break;
406 ✗ case AV_CODEC_ID_AAC_LATM:
407 ✗ stream_type = STREAM_TYPE_AUDIO_AAC_LATM;
408 ✗ break;
409 ✗ case AV_CODEC_ID_AC3:
410 ✗ stream_type = (ts->flags & MPEGTS_FLAG_SYSTEM_B)
411 ? STREAM_TYPE_PRIVATE_DATA
412 ✗ : STREAM_TYPE_ATSC_AUDIO_AC3;
413 ✗ break;
414 ✗ case AV_CODEC_ID_EAC3:
415 ✗ stream_type = (ts->flags & MPEGTS_FLAG_SYSTEM_B)
416 ? STREAM_TYPE_PRIVATE_DATA
417 ✗ : STREAM_TYPE_ATSC_AUDIO_EAC3;
418 ✗ break;
419 ✗ case AV_CODEC_ID_DTS:
420 ✗ 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)
421 ✗ break;
422 ✗ case AV_CODEC_ID_TRUEHD:
423 ✗ 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)
424 ✗ break;
425 ✗ case AV_CODEC_ID_OPUS:
426 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
427 ✗ break;
428 ✗ case AV_CODEC_ID_TIMED_ID3:
429 ✗ stream_type = STREAM_TYPE_METADATA;
430 ✗ break;
431 ✗ case AV_CODEC_ID_SMPTE_2038:
432 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
433 ✗ break;
434 ✗ case AV_CODEC_ID_DVB_SUBTITLE:
435 case AV_CODEC_ID_DVB_TELETEXT:
436 case AV_CODEC_ID_ARIB_CAPTION:
437 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
438 ✗ break;
439 ✗ case AV_CODEC_ID_SMPTE_KLV:
440 ✗ if (st->codecpar->profile == AV_PROFILE_KLVA_SYNC) {
441 ✗ stream_type = STREAM_TYPE_METADATA;
442 } else {
443 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
444 }
445 ✗ break;
446 33 default:
447 33 av_log_once(s, AV_LOG_WARNING, AV_LOG_DEBUG, &ts_st->data_st_warning,
448 "Stream %d, codec %s, is muxed as a private data stream "
449 "and may not be recognized upon reading.\n", st->index,
450 33 avcodec_get_name(st->codecpar->codec_id));
451 33 stream_type = STREAM_TYPE_PRIVATE_DATA;
452 33 break;
453 }
454
455 532 return stream_type;
456 }
457
458 ✗ static int get_m2ts_stream_type(AVFormatContext *s, AVStream *st)
459 {
460 int stream_type;
461 ✗ MpegTSWriteStream *ts_st = st->priv_data;
462
463 ✗ switch (st->codecpar->codec_id) {
464 ✗ case AV_CODEC_ID_MPEG2VIDEO:
465 ✗ stream_type = STREAM_TYPE_VIDEO_MPEG2;
466 ✗ break;
467 ✗ case AV_CODEC_ID_H264:
468 ✗ stream_type = STREAM_TYPE_VIDEO_H264;
469 ✗ break;
470 ✗ case AV_CODEC_ID_VC1:
471 ✗ stream_type = STREAM_TYPE_VIDEO_VC1;
472 ✗ break;
473 ✗ case AV_CODEC_ID_HEVC:
474 ✗ stream_type = STREAM_TYPE_VIDEO_HEVC;
475 ✗ break;
476 ✗ case AV_CODEC_ID_PCM_BLURAY:
477 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_PCM_BLURAY;
478 ✗ break;
479 ✗ case AV_CODEC_ID_AC3:
480 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_AC3;
481 ✗ break;
482 ✗ case AV_CODEC_ID_DTS:
483 ✗ stream_type = (st->codecpar->ch_layout.nb_channels > 6) ?
484 ✗ STREAM_TYPE_BLURAY_AUDIO_DTS_HD :
485 STREAM_TYPE_BLURAY_AUDIO_DTS;
486 ✗ break;
487 ✗ case AV_CODEC_ID_TRUEHD:
488 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_TRUEHD;
489 ✗ break;
490 ✗ case AV_CODEC_ID_EAC3:
491 ✗ stream_type = STREAM_TYPE_BLURAY_AUDIO_EAC3;
492 ✗ break;
493 ✗ case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
494 ✗ stream_type = STREAM_TYPE_BLURAY_SUBTITLE_PGS;
495 ✗ break;
496 ✗ case AV_CODEC_ID_HDMV_TEXT_SUBTITLE:
497 ✗ stream_type = STREAM_TYPE_BLURAY_SUBTITLE_TEXT;
498 ✗ break;
499 ✗ default:
500 ✗ av_log_once(s, AV_LOG_WARNING, AV_LOG_DEBUG, &ts_st->data_st_warning,
501 "Stream %d, codec %s, is muxed as a private data stream "
502 "and may not be recognized upon reading.\n", st->index,
503 ✗ avcodec_get_name(st->codecpar->codec_id));
504 ✗ stream_type = STREAM_TYPE_PRIVATE_DATA;
505 ✗ break;
506 }
507
508 ✗ return stream_type;
509 }
510
511 523 static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
512 {
513 523 MpegTSWrite *ts = s->priv_data;
514 uint8_t data[SECTION_LENGTH], *q, *desc_length_ptr, *program_info_length_ptr;
515 523 int val, stream_type, i, err = 0;
516
517 523 q = data;
518 523 put16(&q, 0xe000 | service->pcr_pid);
519
520 523 program_info_length_ptr = q;
521 523 q += 2; /* patched after */
522
523 /* put program info here */
524
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 523 times.
 523 if (ts->m2ts_mode) {
525 ✗ put_registration_descriptor(&q, MKTAG('H', 'D', 'M', 'V'));
526 ✗ *q++ = 0x88; // descriptor_tag - hdmv_copy_control_descriptor
527 ✗ *q++ = 0x04; // descriptor_length
528 ✗ put16(&q, 0x0fff); // CA_System_ID
529 ✗ *q++ = 0xfc; // private_data_byte
530 ✗ *q++ = 0xfc; // private_data_byte
531 }
532
533 523 val = 0xf000 | (q - program_info_length_ptr - 2);
534 523 program_info_length_ptr[0] = val >> 8;
535 523 program_info_length_ptr[1] = val;
536
537
2/2
✓ Branch 0 taken 532 times.
✓ Branch 1 taken 523 times.
 1055 for (i = 0; i < s->nb_streams; i++) {
538 532 AVStream *st = s->streams[i];
539 532 MpegTSWriteStream *ts_st = st->priv_data;
540 532 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
541 532 const char default_language[] = "und";
542
3/4
✓ Branch 0 taken 42 times.
✓ Branch 1 taken 490 times.
✓ Branch 2 taken 42 times.
✗ Branch 3 not taken.
 532 const char *language = lang && strlen(lang->value) >= 3 ? lang->value : default_language;
543 532 enum AVCodecID codec_id = st->codecpar->codec_id;
544
545
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 532 times.
 532 if (s->nb_programs) {
546 ✗ int k, found = 0;
547 ✗ AVProgram *program = service->program;
548
549 ✗ for (k = 0; k < program->nb_stream_indexes; k++)
550 ✗ if (program->stream_index[k] == i) {
551 ✗ found = 1;
552 ✗ break;
553 }
554
555 ✗ if (!found)
556 ✗ continue;
557 }
558
559
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 532 times.
 532 if (q - data > SECTION_LENGTH - 32) {
560 ✗ err = 1;
561 ✗ break;
562 }
563
564
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 532 times.
 532 stream_type = ts->m2ts_mode ? get_m2ts_stream_type(s, st) : get_dvb_stream_type(s, st);
565
566 532 *q++ = stream_type;
567 532 put16(&q, 0xe000 | ts_st->pid);
568 532 desc_length_ptr = q;
569 532 q += 2; /* patched after */
570
571 /* write optional descriptors here */
572
2/5
✓ Branch 0 taken 481 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 51 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
 532 switch (st->codecpar->codec_type) {
573 481 case AVMEDIA_TYPE_AUDIO:
574
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 481 times.
 481 if (codec_id == AV_CODEC_ID_AC3)
575 ✗ put_registration_descriptor(&q, MKTAG('A', 'C', '-', '3'));
576
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 481 times.
 481 if (codec_id == AV_CODEC_ID_EAC3)
577 ✗ put_registration_descriptor(&q, MKTAG('E', 'A', 'C', '3'));
578
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 481 times.
 481 if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
579 ✗ if (codec_id == AV_CODEC_ID_AC3) {
580 ✗ DVBAC3Descriptor *dvb_ac3_desc = ts_st->dvb_ac3_desc;
581
582 ✗ *q++= AC3_DESCRIPTOR; // AC3 descriptor see A038 DVB SI
583 ✗ if (dvb_ac3_desc) {
584 ✗ int len = 1 +
585 ✗ !!(dvb_ac3_desc->component_type_flag) +
586 ✗ !!(dvb_ac3_desc->bsid_flag) +
587 ✗ !!(dvb_ac3_desc->mainid_flag) +
588 ✗ !!(dvb_ac3_desc->asvc_flag);
589
590 ✗ *q++ = len;
591 ✗ *q++ = dvb_ac3_desc->component_type_flag << 7 | dvb_ac3_desc->bsid_flag << 6 |
592 ✗ dvb_ac3_desc->mainid_flag << 5 | dvb_ac3_desc->asvc_flag << 4;
593
594 ✗ if (dvb_ac3_desc->component_type_flag) *q++ = dvb_ac3_desc->component_type;
595 ✗ if (dvb_ac3_desc->bsid_flag) *q++ = dvb_ac3_desc->bsid;
596 ✗ if (dvb_ac3_desc->mainid_flag) *q++ = dvb_ac3_desc->mainid;
597 ✗ if (dvb_ac3_desc->asvc_flag) *q++ = dvb_ac3_desc->asvc;
598 } else {
599 ✗ *q++=1; // 1 byte, all flags sets to 0
600 ✗ *q++=0; // omit all fields...
601 }
602 ✗ } else if (codec_id == AV_CODEC_ID_EAC3) {
603 ✗ *q++= ENHANCED_AC3_DESCRIPTOR; // EAC3 descriptor see A038 DVB SI
604 ✗ *q++=1; // 1 byte, all flags sets to 0
605 ✗ *q++=0; // omit all fields...
606 }
607 }
608
2/2
✓ Branch 0 taken 33 times.
✓ Branch 1 taken 448 times.
 481 if (codec_id == AV_CODEC_ID_S302M)
609 33 put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
610
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 481 times.
 481 if (codec_id == AV_CODEC_ID_OPUS) {
611 ✗ int ch = st->codecpar->ch_layout.nb_channels;
612
613 /* 6 bytes registration descriptor, 4 bytes Opus audio descriptor */
614 ✗ if (q - data > SECTION_LENGTH - 6 - 4) {
615 ✗ err = 1;
616 ✗ break;
617 }
618
619 ✗ put_registration_descriptor(&q, MKTAG('O', 'p', 'u', 's'));
620
621 ✗ *q++ = EXTENSION_DESCRIPTOR; /* DVB extension descriptor */
622 ✗ *q++ = 2;
623 ✗ *q++ = 0x80;
624
625 ✗ if (st->codecpar->extradata && st->codecpar->extradata_size >= 19) {
626 ✗ if (st->codecpar->extradata[18] == 0 && ch <= 2) {
627 /* RTP mapping family */
628 ✗ *q++ = ch;
629 ✗ } else if (st->codecpar->extradata[18] == 1 && ch <= 8 &&
630 ✗ st->codecpar->extradata_size >= 21 + ch) {
631 static const uint8_t coupled_stream_counts[9] = {
632 1, 0, 1, 1, 2, 2, 2, 3, 3
633 };
634 static const uint8_t channel_map_a[8][8] = {
635 {0},
636 {0, 1},
637 {0, 2, 1},
638 {0, 1, 2, 3},
639 {0, 4, 1, 2, 3},
640 {0, 4, 1, 2, 3, 5},
641 {0, 4, 1, 2, 3, 5, 6},
642 {0, 6, 1, 2, 3, 4, 5, 7},
643 };
644 static const uint8_t channel_map_b[8][8] = {
645 {0},
646 {0, 1},
647 {0, 1, 2},
648 {0, 1, 2, 3},
649 {0, 1, 2, 3, 4},
650 {0, 1, 2, 3, 4, 5},
651 {0, 1, 2, 3, 4, 5, 6},
652 {0, 1, 2, 3, 4, 5, 6, 7},
653 };
654 /* Vorbis mapping family */
655
656 ✗ if (st->codecpar->extradata[19] == ch - coupled_stream_counts[ch] &&
657 ✗ st->codecpar->extradata[20] == coupled_stream_counts[ch] &&
658 ✗ memcmp(&st->codecpar->extradata[21], channel_map_a[ch - 1], ch) == 0) {
659 ✗ *q++ = ch;
660 ✗ } else if (ch >= 2 && st->codecpar->extradata[19] == ch &&
661 ✗ st->codecpar->extradata[20] == 0 &&
662 ✗ memcmp(&st->codecpar->extradata[21], channel_map_b[ch - 1], ch) == 0) {
663 ✗ *q++ = ch | 0x80;
664 } else {
665 /* Unsupported, could write an extended descriptor here */
666 ✗ av_log(s, AV_LOG_ERROR, "Unsupported Opus Vorbis-style channel mapping");
667 ✗ *q++ = 0xff;
668 }
669 } else {
670 /* Unsupported */
671 ✗ av_log(s, AV_LOG_ERROR, "Unsupported Opus channel mapping for family %d", st->codecpar->extradata[18]);
672 ✗ *q++ = 0xff;
673 }
674 ✗ } else if (ch <= 2) {
675 /* Assume RTP mapping family */
676 ✗ *q++ = ch;
677 } else {
678 /* Unsupported */
679 ✗ av_log(s, AV_LOG_ERROR, "Unsupported Opus channel mapping");
680 ✗ *q++ = 0xff;
681 }
682 }
683
684
1/2
✓ Branch 0 taken 481 times.
✗ Branch 1 not taken.
 481 if (language != default_language ||
685
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 481 times.
 481 st->disposition & (AV_DISPOSITION_CLEAN_EFFECTS |
686 AV_DISPOSITION_HEARING_IMPAIRED |
687 AV_DISPOSITION_VISUAL_IMPAIRED)) {
688 const char *p, *next;
689 uint8_t *len_ptr;
690
691 ✗ *q++ = ISO_639_LANGUAGE_DESCRIPTOR;
692 ✗ len_ptr = q++;
693 ✗ *len_ptr = 0;
694
695 ✗ for (p = next = language; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
696 ✗ if (q - data > SECTION_LENGTH - 4) {
697 ✗ err = 1;
698 ✗ break;
699 }
700 ✗ next = strchr(p, ',');
701 ✗ if (strlen(p) != 3 && (!next || next != p + 3))
702 ✗ continue; /* not a 3-letter code */
703
704 ✗ *q++ = *p++;
705 ✗ *q++ = *p++;
706 ✗ *q++ = *p++;
707
708 ✗ if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
709 ✗ *q++ = 0x01;
710 ✗ else if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
711 ✗ *q++ = 0x02;
712 ✗ else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
713 ✗ *q++ = 0x03;
714 else
715 ✗ *q++ = 0; /* undefined type */
716
717 ✗ *len_ptr += 4;
718 }
719
720 ✗ if (*len_ptr == 0)
721 ✗ q -= 2; /* no language codes were written */
722 }
723 481 break;
724 ✗ case AVMEDIA_TYPE_SUBTITLE:
725 ✗ if (codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
726 uint8_t *len_ptr;
727 ✗ int extradata_copied = 0;
728
729 ✗ *q++ = SUBTITLING_DESCRIPTOR; /* subtitling_descriptor */
730 ✗ len_ptr = q++;
731
732 ✗ while (strlen(language) >= 3) {
733 ✗ if (sizeof(data) - (q - data) < 8) { /* 8 bytes per DVB subtitle substream data */
734 ✗ err = 1;
735 ✗ break;
736 }
737 ✗ *q++ = *language++;
738 ✗ *q++ = *language++;
739 ✗ *q++ = *language++;
740 /* Skip comma */
741 ✗ if (*language != '\0')
742 ✗ language++;
743
744 ✗ if (st->codecpar->extradata_size - extradata_copied >= 5) {
745 ✗ *q++ = st->codecpar->extradata[extradata_copied + 4]; /* subtitling_type */
746 ✗ memcpy(q, st->codecpar->extradata + extradata_copied, 4); /* composition_page_id and ancillary_page_id */
747 ✗ extradata_copied += 5;
748 ✗ q += 4;
749 } else {
750 /* subtitling_type:
751 * 0x10 - normal with no monitor aspect ratio criticality
752 * 0x20 - for the hard of hearing with no monitor aspect ratio criticality */
753 ✗ *q++ = (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED) ? 0x20 : 0x10;
754 ✗ if ((st->codecpar->extradata_size == 4) && (extradata_copied == 0)) {
755 /* support of old 4-byte extradata format */
756 ✗ memcpy(q, st->codecpar->extradata, 4); /* composition_page_id and ancillary_page_id */
757 ✗ extradata_copied += 4;
758 ✗ q += 4;
759 } else {
760 ✗ put16(&q, 1); /* composition_page_id */
761 ✗ put16(&q, 1); /* ancillary_page_id */
762 }
763 }
764 }
765
766 ✗ *len_ptr = q - len_ptr - 1;
767 ✗ } else if (codec_id == AV_CODEC_ID_DVB_TELETEXT) {
768 ✗ uint8_t *len_ptr = NULL;
769 ✗ int extradata_copied = 0;
770
771 /* The descriptor tag. teletext_descriptor */
772 ✗ *q++ = TELETEXT_DESCRIPTOR;
773 ✗ len_ptr = q++;
774
775 ✗ while (strlen(language) >= 3 && q - data < sizeof(data) - 6) {
776 ✗ *q++ = *language++;
777 ✗ *q++ = *language++;
778 ✗ *q++ = *language++;
779 /* Skip comma */
780 ✗ if (*language != '\0')
781 ✗ language++;
782
783 ✗ if (st->codecpar->extradata_size - 1 > extradata_copied) {
784 ✗ memcpy(q, st->codecpar->extradata + extradata_copied, 2);
785 ✗ extradata_copied += 2;
786 ✗ q += 2;
787 } else {
788 /* The Teletext descriptor:
789 * teletext_type: This 5-bit field indicates the type of Teletext page indicated. (0x01 Initial Teletext page)
790 * teletext_magazine_number: This is a 3-bit field which identifies the magazine number.
791 * teletext_page_number: This is an 8-bit field giving two 4-bit hex digits identifying the page number. */
792 ✗ *q++ = 0x08;
793 ✗ *q++ = 0x00;
794 }
795 }
796
797 ✗ *len_ptr = q - len_ptr - 1;
798 ✗ } else if (codec_id == AV_CODEC_ID_ARIB_CAPTION) {
799 ✗ if (put_arib_caption_descriptor(s, &q, st->codecpar) < 0)
800 ✗ break;
801 }
802 ✗ break;
803 51 case AVMEDIA_TYPE_VIDEO:
804
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 51 times.
 51 if (stream_type == STREAM_TYPE_VIDEO_DIRAC) {
805 ✗ put_registration_descriptor(&q, MKTAG('d', 'r', 'a', 'c'));
806
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 51 times.
 51 } else if (stream_type == STREAM_TYPE_VIDEO_VC1) {
807 ✗ put_registration_descriptor(&q, MKTAG('V', 'C', '-', '1'));
808
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 51 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 51 } else if (stream_type == STREAM_TYPE_VIDEO_HEVC && s->strict_std_compliance <= FF_COMPLIANCE_NORMAL) {
809 ✗ put_registration_descriptor(&q, MKTAG('H', 'E', 'V', 'C'));
810
3/6
✓ Branch 0 taken 51 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 51 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 51 times.
 51 } else if (stream_type == STREAM_TYPE_VIDEO_CAVS || stream_type == STREAM_TYPE_VIDEO_AVS2 ||
811 stream_type == STREAM_TYPE_VIDEO_AVS3) {
812 ✗ put_registration_descriptor(&q, MKTAG('A', 'V', 'S', 'V'));
813 }
814 51 break;
815 ✗ case AVMEDIA_TYPE_DATA:
816 ✗ if (codec_id == AV_CODEC_ID_SMPTE_KLV) {
817 ✗ put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A'));
818 ✗ } else if (codec_id == AV_CODEC_ID_SMPTE_2038) {
819 ✗ put_registration_descriptor(&q, MKTAG('V', 'A', 'N', 'C'));
820 ✗ } else if (codec_id == AV_CODEC_ID_TIMED_ID3) {
821 ✗ const char *tag = "ID3 ";
822 ✗ *q++ = METADATA_DESCRIPTOR;
823 ✗ *q++ = 13;
824 ✗ put16(&q, 0xffff); /* metadata application format */
825 ✗ putbuf(&q, tag, strlen(tag));
826 ✗ *q++ = 0xff; /* metadata format */
827 ✗ putbuf(&q, tag, strlen(tag));
828 ✗ *q++ = 0; /* metadata service ID */
829 ✗ *q++ = 0xF; /* metadata_locator_record_flag|MPEG_carriage_flags|reserved */
830 }
831 ✗ break;
832 }
833
834 532 val = 0xf000 | (q - desc_length_ptr - 2);
835 532 desc_length_ptr[0] = val >> 8;
836 532 desc_length_ptr[1] = val;
837 }
838
839
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 523 times.
 523 if (err)
840 ✗ av_log(s, AV_LOG_ERROR,
841 "The PMT section cannot fit stream %d and all following streams.\n"
842 "Try reducing the number of languages in the audio streams "
843 "or the total number of streams.\n", i);
844
845 523 mpegts_write_section1(&service->pmt, PMT_TID, service->sid, ts->tables_version, 0, 0,
846 523 data, q - data);
847 523 return 0;
848 }
849
850 159 static void mpegts_write_sdt(AVFormatContext *s)
851 {
852 159 MpegTSWrite *ts = s->priv_data;
853 MpegTSService *service;
854 uint8_t data[SECTION_LENGTH], *q, *desc_list_len_ptr, *desc_len_ptr;
855 int i, running_status, free_ca_mode, val;
856
857 159 q = data;
858 159 put16(&q, ts->original_network_id);
859 159 *q++ = 0xff;
860
2/2
✓ Branch 0 taken 159 times.
✓ Branch 1 taken 159 times.
 318 for (i = 0; i < ts->nb_services; i++) {
861 159 service = ts->services[i];
862 159 put16(&q, service->sid);
863 159 *q++ = 0xfc | 0x00; /* currently no EIT info */
864 159 desc_list_len_ptr = q;
865 159 q += 2;
866 159 running_status = 4; /* running */
867 159 free_ca_mode = 0;
868
869 /* write only one descriptor for the service name and provider */
870 159 *q++ = SERVICE_DESCRIPTOR;
871 159 desc_len_ptr = q;
872 159 q++;
873 159 *q++ = ts->service_type;
874 159 putbuf(&q, service->provider_name, service->provider_name[0] + 1);
875 159 putbuf(&q, service->name, service->name[0] + 1);
876 159 desc_len_ptr[0] = q - desc_len_ptr - 1;
877
878 /* fill descriptor length */
879 159 val = (running_status << 13) | (free_ca_mode << 12) |
880 159 (q - desc_list_len_ptr - 2);
881 159 desc_list_len_ptr[0] = val >> 8;
882 159 desc_list_len_ptr[1] = val;
883 }
884 159 mpegts_write_section1(&ts->sdt, SDT_TID, ts->transport_stream_id, ts->tables_version, 0, 0,
885 159 data, q - data);
886 159 }
887
888 ✗ static void mpegts_write_nit(AVFormatContext *s)
889 {
890 ✗ MpegTSWrite *ts = s->priv_data;
891 uint8_t data[SECTION_LENGTH], *q, *desc_len_ptr, *loop_len_ptr;
892
893 ✗ q = data;
894
895 //network_descriptors_length
896 ✗ put16(&q, 0xf000 | (ts->provider_name[0] + 2));
897
898 //network_name_descriptor
899 ✗ *q++ = NETWORK_NAME_DESCRIPTOR;
900 ✗ putbuf(&q, ts->provider_name, ts->provider_name[0] + 1);
901
902 //transport_stream_loop_length
903 ✗ loop_len_ptr = q;
904 ✗ q += 2;
905
906 ✗ put16(&q, ts->transport_stream_id);
907 ✗ put16(&q, ts->original_network_id);
908
909 //transport_descriptors_length
910 ✗ desc_len_ptr = q;
911 ✗ q += 2;
912
913 //service_list_descriptor
914 ✗ *q++ = SERVICE_LIST_DESCRIPTOR;
915 ✗ *q++ = 3 * ts->nb_services;
916 ✗ for (int i = 0; i < ts->nb_services; i++) {
917 ✗ put16(&q, ts->services[i]->sid);
918 ✗ *q++ = ts->service_type;
919 }
920
921 //calculate lengths
922 ✗ put16(&desc_len_ptr, 0xf000 | q - (desc_len_ptr + 2));
923 ✗ put16(&loop_len_ptr, 0xf000 | q - (loop_len_ptr + 2));
924
925 ✗ mpegts_write_section1(&ts->nit, NIT_TID, ts->original_network_id, ts->tables_version, 0, 0,
926 ✗ data, q - data);
927 ✗ }
928
929 /* This stores a string in buf with the correct encoding and also sets the
930 * first byte as the length. !str is accepted for an empty string.
931 * If the string is already encoded, invalid UTF-8 or has no multibyte sequence
932 * then we keep it as is, otherwise we signal UTF-8 encoding. */
933 60 static int encode_str8(uint8_t *buf, const char *str)
934 {
935 size_t str_len;
936
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 60 times.
 60 if (!str)
937 ✗ str = "";
938 60 str_len = strlen(str);
939
2/4
✓ Branch 0 taken 60 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 60 times.
 60 if (str[0] && (unsigned)str[0] >= 0x20) { /* Make sure the string is not already encoded. */
940 60 const uint8_t *q = str;
941 60 int has_multibyte = 0;
942
2/2
✓ Branch 0 taken 419 times.
✓ Branch 1 taken 60 times.
 479 while (*q) {
943 uint32_t code;
944
3/8
✓ Branch 0 taken 419 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 419 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 419 times.
 419 GET_UTF8(code, *q++, goto invalid;) /* Is it valid UTF-8? */
945 419 has_multibyte |= (code > 127); /* Does it have multibyte UTF-8 chars in it? */
946 }
947
1/2
✓ Branch 0 taken 60 times.
✗ Branch 1 not taken.
 60 if (has_multibyte) { /* If we have multibyte chars and valid UTF-8, then encode as such! */
948 ✗ if (str_len > 254)
949 ✗ return AVERROR(EINVAL);
950 ✗ buf[0] = str_len + 1;
951 ✗ buf[1] = 0x15;
952 ✗ memcpy(&buf[2], str, str_len);
953 ✗ return 0;
954 }
955 }
956 60 invalid:
957 /* Otherwise let's just encode the string as is! */
958
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 60 times.
 60 if (str_len > 255)
959 ✗ return AVERROR(EINVAL);
960 60 buf[0] = str_len;
961 60 memcpy(&buf[1], str, str_len);
962 60 return 0;
963 }
964
965 ✗ static int64_t get_pcr(const MpegTSWrite *ts)
966 {
967 ✗ return av_rescale(ts->total_size + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
968 ✗ ts->first_pcr;
969 }
970
971 65648 static void write_packet(AVFormatContext *s, const uint8_t *packet)
972 {
973 65648 MpegTSWrite *ts = s->priv_data;
974
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65648 times.
 65648 if (ts->m2ts_mode) {
975 ✗ int64_t pcr = get_pcr(s->priv_data);
976 ✗ uint32_t tp_extra_header = pcr % 0x3fffffff;
977 ✗ tp_extra_header = AV_RB32(&tp_extra_header);
978 ✗ avio_write(s->pb, (unsigned char *) &tp_extra_header,
979 sizeof(tp_extra_header));
980 }
981 65648 avio_write(s->pb, packet, TS_PACKET_SIZE);
982 65648 ts->total_size += TS_PACKET_SIZE;
983 65648 }
984
985 1205 static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
986 {
987 1205 AVFormatContext *ctx = s->opaque;
988 1205 write_packet(ctx, packet);
989 1205 }
990
991 20 static MpegTSService *mpegts_add_service(AVFormatContext *s, int sid,
992 const AVDictionary *metadata,
993 AVProgram *program)
994 {
995 20 MpegTSWrite *ts = s->priv_data;
996 MpegTSService *service;
997 AVDictionaryEntry *title, *provider;
998 char default_service_name[32];
999 const char *service_name;
1000 const char *provider_name;
1001
1002 20 title = av_dict_get(metadata, "service_name", NULL, 0);
1003
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (!title)
1004 20 title = av_dict_get(metadata, "title", NULL, 0);
1005 20 snprintf(default_service_name, sizeof(default_service_name), "%s%02d", DEFAULT_SERVICE_NAME, ts->nb_services + 1);
1006
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 19 times.
 20 service_name = title ? title->value : default_service_name;
1007 20 provider = av_dict_get(metadata, "service_provider", NULL, 0);
1008
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
1009
1010 20 service = av_mallocz(sizeof(MpegTSService));
1011
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 if (!service)
1012 ✗ return NULL;
1013 20 service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
1014 20 service->sid = sid;
1015 20 service->pcr_pid = 0x1fff;
1016
2/4
✓ Branch 1 taken 20 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 20 times.
 40 if (encode_str8(service->provider_name, provider_name) < 0 ||
1017 20 encode_str8(service->name, service_name) < 0) {
1018 ✗ av_log(s, AV_LOG_ERROR, "Too long service or provider name\n");
1019 ✗ goto fail;
1020 }
1021
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 20 times.
 20 if (av_dynarray_add_nofree(&ts->services, &ts->nb_services, service) < 0)
1022 ✗ goto fail;
1023
1024 20 service->pmt.write_packet = section_write_packet;
1025 20 service->pmt.opaque = s;
1026 20 service->pmt.cc = 15;
1027 20 service->pmt.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1028 20 service->program = program;
1029
1030 20 return service;
1031 ✗ fail:
1032 ✗ av_free(service);
1033 ✗ return NULL;
1034 }
1035
1036 20 static void enable_pcr_generation_for_stream(AVFormatContext *s, AVStream *pcr_st)
1037 {
1038 20 MpegTSWrite *ts = s->priv_data;
1039 20 MpegTSWriteStream *ts_st = pcr_st->priv_data;
1040
1041
2/4
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 20 times.
 20 if (ts->mux_rate > 1 || ts->pcr_period_ms >= 0) {
1042 ✗ int pcr_period_ms = ts->pcr_period_ms == -1 ? PCR_RETRANS_TIME : ts->pcr_period_ms;
1043 ✗ ts_st->pcr_period = av_rescale(pcr_period_ms, PCR_TIME_BASE, 1000);
1044 } else {
1045 /* By default, for VBR we select the highest multiple of frame duration which is less than 100 ms. */
1046 20 int64_t frame_period = 0;
1047
2/2
✓ Branch 0 taken 14 times.
✓ Branch 1 taken 6 times.
 20 if (pcr_st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1048 14 int frame_size = av_get_audio_frame_duration2(pcr_st->codecpar, 0);
1049
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 13 times.
 14 if (!frame_size) {
1050 1 av_log(s, AV_LOG_WARNING, "frame size not set\n");
1051 1 frame_size = 512;
1052 }
1053 14 frame_period = av_rescale_rnd(frame_size, PCR_TIME_BASE, pcr_st->codecpar->sample_rate, AV_ROUND_UP);
1054
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
 6 } else if (pcr_st->avg_frame_rate.num) {
1055 6 frame_period = av_rescale_rnd(pcr_st->avg_frame_rate.den, PCR_TIME_BASE, pcr_st->avg_frame_rate.num, AV_ROUND_UP);
1056 }
1057
2/4
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 20 times.
✗ Branch 3 not taken.
 20 if (frame_period > 0 && frame_period <= PCR_TIME_BASE / 10)
1058 20 ts_st->pcr_period = frame_period * (PCR_TIME_BASE / 10 / frame_period);
1059 else
1060 ✗ ts_st->pcr_period = 1;
1061 }
1062
1063 // output a PCR as soon as possible
1064 20 ts_st->last_pcr = ts->first_pcr - ts_st->pcr_period;
1065 20 }
1066
1067 20 static void select_pcr_streams(AVFormatContext *s)
1068 {
1069 20 MpegTSWrite *ts = s->priv_data;
1070
1071
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 20 times.
 40 for (int i = 0; i < ts->nb_services; i++) {
1072 20 MpegTSService *service = ts->services[i];
1073 20 AVStream *pcr_st = NULL;
1074 20 AVProgram *program = service->program;
1075
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 int nb_streams = program ? program->nb_stream_indexes : s->nb_streams;
1076
1077
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 20 times.
 41 for (int j = 0; j < nb_streams; j++) {
1078
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 AVStream *st = s->streams[program ? program->stream_index[j] : j];
1079
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 20 times.
 21 if (!pcr_st ||
1080
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 1 pcr_st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1081 {
1082 20 pcr_st = st;
1083 }
1084 }
1085
1086
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (pcr_st) {
1087 20 MpegTSWriteStream *ts_st = pcr_st->priv_data;
1088 20 service->pcr_pid = ts_st->pid;
1089 20 enable_pcr_generation_for_stream(s, pcr_st);
1090 20 av_log(s, AV_LOG_VERBOSE, "service %i using PCR in pid=%i, pcr_period=%"PRId64"ms\n",
1091 service->sid, service->pcr_pid, av_rescale(ts_st->pcr_period, 1000, PCR_TIME_BASE));
1092 }
1093 }
1094 20 }
1095
1096 20 static int mpegts_init(AVFormatContext *s)
1097 {
1098 20 MpegTSWrite *ts = s->priv_data;
1099 AVDictionaryEntry *provider;
1100 const char *provider_name;
1101 int i, j;
1102 int ret;
1103
1104
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (ts->m2ts_mode == -1) {
1105
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 20 times.
 20 if (av_match_ext(s->url, "m2ts")) {
1106 ✗ ts->m2ts_mode = 1;
1107 } else {
1108 20 ts->m2ts_mode = 0;
1109 }
1110 }
1111
1112 20 ts->m2ts_video_pid = M2TS_VIDEO_PID;
1113 20 ts->m2ts_audio_pid = M2TS_AUDIO_START_PID;
1114 20 ts->m2ts_pgssub_pid = M2TS_PGSSUB_START_PID;
1115 20 ts->m2ts_textsub_pid = M2TS_TEXTSUB_PID;
1116
1117
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 if (ts->m2ts_mode) {
1118 ✗ ts->pmt_start_pid = M2TS_PMT_PID;
1119 ✗ if (s->nb_programs > 1) {
1120 ✗ av_log(s, AV_LOG_ERROR, "Only one program is allowed in m2ts mode!\n");
1121 ✗ return AVERROR(EINVAL);
1122 }
1123 }
1124
1125
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 if (s->max_delay < 0) /* Not set by the caller */
1126 ✗ s->max_delay = 0;
1127
1128 // round up to a whole number of TS packets
1129 20 ts->pes_payload_size = (ts->pes_payload_size + 14 + 183) / 184 * 184 - 14;
1130
1131
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (!s->nb_programs) {
1132 /* allocate a single DVB service */
1133
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 20 times.
 20 if (!mpegts_add_service(s, ts->service_id, s->metadata, NULL))
1134 ✗ return AVERROR(ENOMEM);
1135 } else {
1136 ✗ for (i = 0; i < s->nb_programs; i++) {
1137 ✗ AVProgram *program = s->programs[i];
1138 ✗ if (!mpegts_add_service(s, program->id, program->metadata, program))
1139 ✗ return AVERROR(ENOMEM);
1140 }
1141 }
1142
1143 20 ts->pat.pid = PAT_PID;
1144 /* Initialize at 15 so that it wraps and is equal to 0 for the
1145 * first packet we write. */
1146 20 ts->pat.cc = 15;
1147 20 ts->pat.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1148 20 ts->pat.write_packet = section_write_packet;
1149 20 ts->pat.opaque = s;
1150
1151 20 ts->sdt.pid = SDT_PID;
1152 20 ts->sdt.cc = 15;
1153 20 ts->sdt.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1154 20 ts->sdt.write_packet = section_write_packet;
1155 20 ts->sdt.opaque = s;
1156
1157 20 ts->nit.pid = NIT_PID;
1158 20 ts->nit.cc = 15;
1159 20 ts->nit.discontinuity= ts->flags & MPEGTS_FLAG_DISCONT;
1160 20 ts->nit.write_packet = section_write_packet;
1161 20 ts->nit.opaque = s;
1162
1163 20 ts->pkt = ffformatcontext(s)->pkt;
1164
1165 /* assign pids to each stream */
1166
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 20 times.
 41 for (i = 0; i < s->nb_streams; i++) {
1167 21 AVStream *st = s->streams[i];
1168 MpegTSWriteStream *ts_st;
1169
1170 21 ts_st = av_mallocz(sizeof(MpegTSWriteStream));
1171
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (!ts_st) {
1172 ✗ return AVERROR(ENOMEM);
1173 }
1174 21 st->priv_data = ts_st;
1175
1176 21 avpriv_set_pts_info(st, 33, 1, 90000);
1177
1178 21 ts_st->payload = av_mallocz(ts->pes_payload_size);
1179
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (!ts_st->payload) {
1180 ✗ return AVERROR(ENOMEM);
1181 }
1182
1183 /* MPEG pid values < 16 are reserved. Applications which set st->id in
1184 * this range are assigned a calculated pid. */
1185
1/2
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
 21 if (st->id < 16) {
1186
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (ts->m2ts_mode) {
1187 ✗ switch (st->codecpar->codec_type) {
1188 ✗ case AVMEDIA_TYPE_VIDEO:
1189 ✗ ts_st->pid = ts->m2ts_video_pid++;
1190 ✗ break;
1191 ✗ case AVMEDIA_TYPE_AUDIO:
1192 ✗ ts_st->pid = ts->m2ts_audio_pid++;
1193 ✗ break;
1194 ✗ case AVMEDIA_TYPE_SUBTITLE:
1195 ✗ switch (st->codecpar->codec_id) {
1196 ✗ case AV_CODEC_ID_HDMV_PGS_SUBTITLE:
1197 ✗ ts_st->pid = ts->m2ts_pgssub_pid++;
1198 ✗ break;
1199 ✗ case AV_CODEC_ID_HDMV_TEXT_SUBTITLE:
1200 ✗ ts_st->pid = ts->m2ts_textsub_pid++;
1201 ✗ break;
1202 }
1203 ✗ break;
1204 }
1205 ✗ if (ts->m2ts_video_pid > M2TS_VIDEO_PID + 1 ||
1206 ✗ ts->m2ts_audio_pid > M2TS_AUDIO_START_PID + 32 ||
1207 ✗ ts->m2ts_pgssub_pid > M2TS_PGSSUB_START_PID + 32 ||
1208 ✗ ts->m2ts_textsub_pid > M2TS_TEXTSUB_PID + 1 ||
1209 ✗ ts_st->pid < 16) {
1210 ✗ av_log(s, AV_LOG_ERROR, "Cannot automatically assign PID for stream %d\n", st->index);
1211 ✗ return AVERROR(EINVAL);
1212 }
1213 } else {
1214 21 ts_st->pid = ts->start_pid + i;
1215 }
1216 } else {
1217 ✗ ts_st->pid = st->id;
1218 }
1219
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (ts_st->pid >= 0x1FFF) {
1220 ✗ av_log(s, AV_LOG_ERROR,
1221 "Invalid stream id %d, must be less than 8191\n", st->id);
1222 ✗ return AVERROR(EINVAL);
1223 }
1224
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 21 times.
 42 for (j = 0; j < ts->nb_services; j++) {
1225
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (ts->services[j]->pmt.pid > LAST_OTHER_PID) {
1226 ✗ av_log(s, AV_LOG_ERROR,
1227 ✗ "Invalid PMT PID %d, must be less than %d\n", ts->services[j]->pmt.pid, LAST_OTHER_PID + 1);
1228 ✗ return AVERROR(EINVAL);
1229 }
1230
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (ts_st->pid == ts->services[j]->pmt.pid) {
1231 ✗ av_log(s, AV_LOG_ERROR, "PID %d cannot be both elementary and PMT PID\n", ts_st->pid);
1232 ✗ return AVERROR(EINVAL);
1233 }
1234 }
1235
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 21 times.
 22 for (j = 0; j < i; j++) {
1236 1 MpegTSWriteStream *ts_st_prev = s->streams[j]->priv_data;
1237
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (ts_st_prev->pid == ts_st->pid) {
1238 ✗ av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
1239 ✗ return AVERROR(EINVAL);
1240 }
1241 }
1242 21 ts_st->payload_pts = AV_NOPTS_VALUE;
1243 21 ts_st->payload_dts = AV_NOPTS_VALUE;
1244 21 ts_st->cc = 15;
1245 21 ts_st->discontinuity = ts->flags & MPEGTS_FLAG_DISCONT;
1246
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (st->codecpar->codec_id == AV_CODEC_ID_AAC &&
1247 ✗ st->codecpar->extradata_size > 0) {
1248 AVStream *ast;
1249 ✗ ts_st->amux = avformat_alloc_context();
1250 ✗ if (!ts_st->amux) {
1251 ✗ return AVERROR(ENOMEM);
1252 }
1253 ✗ ts_st->amux->oformat =
1254 ✗ av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts",
1255 NULL, NULL);
1256 ✗ if (!ts_st->amux->oformat) {
1257 ✗ return AVERROR(EINVAL);
1258 }
1259 ✗ if (!(ast = avformat_new_stream(ts_st->amux, NULL))) {
1260 ✗ return AVERROR(ENOMEM);
1261 }
1262 ✗ ret = avcodec_parameters_copy(ast->codecpar, st->codecpar);
1263 ✗ if (ret != 0)
1264 ✗ return ret;
1265 ✗ ast->time_base = st->time_base;
1266 ✗ ret = avformat_write_header(ts_st->amux, NULL);
1267 ✗ if (ret < 0)
1268 ✗ return ret;
1269 }
1270
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (st->codecpar->codec_id == AV_CODEC_ID_OPUS) {
1271 ✗ ts_st->opus_pending_trim_start = st->codecpar->initial_padding * 48000 / st->codecpar->sample_rate;
1272 }
1273 }
1274
1275
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (ts->copyts < 1)
1276 20 ts->first_pcr = av_rescale(s->max_delay, PCR_TIME_BASE, AV_TIME_BASE);
1277
1278 20 select_pcr_streams(s);
1279
1280 20 ts->last_pat_ts = AV_NOPTS_VALUE;
1281 20 ts->last_sdt_ts = AV_NOPTS_VALUE;
1282 20 ts->last_nit_ts = AV_NOPTS_VALUE;
1283 20 ts->pat_period = av_rescale(ts->pat_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1284 20 ts->sdt_period = av_rescale(ts->sdt_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1285 20 ts->nit_period = av_rescale(ts->nit_period_us, PCR_TIME_BASE, AV_TIME_BASE);
1286
1287 /* assign provider name */
1288 20 provider = av_dict_get(s->metadata, "service_provider", NULL, 0);
1289
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
1290
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 20 times.
 20 if (encode_str8(ts->provider_name, provider_name) < 0) {
1291 ✗ av_log(s, AV_LOG_ERROR, "Too long provider name\n");
1292 ✗ return AVERROR(EINVAL);
1293 }
1294
1295
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (ts->mux_rate == 1)
1296 20 av_log(s, AV_LOG_VERBOSE, "muxrate VBR, ");
1297 else
1298 ✗ av_log(s, AV_LOG_VERBOSE, "muxrate %d, ", ts->mux_rate);
1299 20 av_log(s, AV_LOG_VERBOSE,
1300 "sdt every %"PRId64" ms, pat/pmt every %"PRId64" ms",
1301 av_rescale(ts->sdt_period, 1000, PCR_TIME_BASE),
1302 av_rescale(ts->pat_period, 1000, PCR_TIME_BASE));
1303
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 20 times.
 20 if (ts->flags & MPEGTS_FLAG_NIT)
1304 ✗ av_log(s, AV_LOG_VERBOSE, ", nit every %"PRId64" ms", av_rescale(ts->nit_period, 1000, PCR_TIME_BASE));
1305 20 av_log(s, AV_LOG_VERBOSE, "\n");
1306
1307 20 return 0;
1308 }
1309
1310 /* send SDT, NIT, PAT and PMT tables regularly */
1311 64443 static void retransmit_si_info(AVFormatContext *s, int force_pat, int force_sdt, int force_nit, int64_t pcr)
1312 {
1313 64443 MpegTSWrite *ts = s->priv_data;
1314 int i;
1315
1316
4/6
✓ Branch 0 taken 64443 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 64423 times.
✓ Branch 3 taken 20 times.
✓ Branch 4 taken 64423 times.
✗ Branch 5 not taken.
 64443 if ((pcr != AV_NOPTS_VALUE && ts->last_sdt_ts == AV_NOPTS_VALUE) ||
1317
4/4
✓ Branch 0 taken 64330 times.
✓ Branch 1 taken 93 times.
✓ Branch 2 taken 46 times.
✓ Branch 3 taken 64284 times.
 64423 (pcr != AV_NOPTS_VALUE && pcr - ts->last_sdt_ts >= ts->sdt_period) ||
1318 force_sdt
1319 ) {
1320
1/2
✓ Branch 0 taken 159 times.
✗ Branch 1 not taken.
 159 if (pcr != AV_NOPTS_VALUE)
1321 159 ts->last_sdt_ts = FFMAX(pcr, ts->last_sdt_ts);
1322 159 mpegts_write_sdt(s);
1323 }
1324
4/6
✓ Branch 0 taken 64443 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 64423 times.
✓ Branch 3 taken 20 times.
✓ Branch 4 taken 64423 times.
✗ Branch 5 not taken.
 64443 if ((pcr != AV_NOPTS_VALUE && ts->last_pat_ts == AV_NOPTS_VALUE) ||
1325
4/4
✓ Branch 0 taken 63966 times.
✓ Branch 1 taken 457 times.
✓ Branch 2 taken 46 times.
✓ Branch 3 taken 63920 times.
 64423 (pcr != AV_NOPTS_VALUE && pcr - ts->last_pat_ts >= ts->pat_period) ||
1326 force_pat) {
1327
1/2
✓ Branch 0 taken 523 times.
✗ Branch 1 not taken.
 523 if (pcr != AV_NOPTS_VALUE)
1328 523 ts->last_pat_ts = FFMAX(pcr, ts->last_pat_ts);
1329 523 mpegts_write_pat(s);
1330
2/2
✓ Branch 0 taken 523 times.
✓ Branch 1 taken 523 times.
 1046 for (i = 0; i < ts->nb_services; i++)
1331 523 mpegts_write_pmt(s, ts->services[i]);
1332 }
1333
4/6
✓ Branch 0 taken 64443 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 64423 times.
✓ Branch 3 taken 20 times.
✓ Branch 4 taken 64423 times.
✗ Branch 5 not taken.
 64443 if ((pcr != AV_NOPTS_VALUE && ts->last_nit_ts == AV_NOPTS_VALUE) ||
1334
4/4
✓ Branch 0 taken 64073 times.
✓ Branch 1 taken 350 times.
✓ Branch 2 taken 46 times.
✓ Branch 3 taken 64027 times.
 64423 (pcr != AV_NOPTS_VALUE && pcr - ts->last_nit_ts >= ts->nit_period) ||
1335 force_nit
1336 ) {
1337
1/2
✓ Branch 0 taken 416 times.
✗ Branch 1 not taken.
 416 if (pcr != AV_NOPTS_VALUE)
1338 416 ts->last_nit_ts = FFMAX(pcr, ts->last_nit_ts);
1339
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 416 times.
 416 if (ts->flags & MPEGTS_FLAG_NIT)
1340 ✗ mpegts_write_nit(s);
1341 }
1342 64443 }
1343
1344 3925 static int write_pcr_bits(uint8_t *buf, int64_t pcr)
1345 {
1346 3925 int64_t pcr_low = pcr % SYSTEM_CLOCK_FREQUENCY_DIVISOR, pcr_high = pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1347
1348 3925 *buf++ = pcr_high >> 25;
1349 3925 *buf++ = pcr_high >> 17;
1350 3925 *buf++ = pcr_high >> 9;
1351 3925 *buf++ = pcr_high >> 1;
1352 3925 *buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e;
1353 3925 *buf++ = pcr_low;
1354
1355 3925 return 6;
1356 }
1357
1358 /* Write a single null transport stream packet */
1359 ✗ static void mpegts_insert_null_packet(AVFormatContext *s)
1360 {
1361 uint8_t *q;
1362 uint8_t buf[TS_PACKET_SIZE];
1363
1364 ✗ q = buf;
1365 ✗ *q++ = SYNC_BYTE;
1366 ✗ *q++ = 0x00 | (NULL_PID >> 8);
1367 ✗ *q++ = NULL_PID & 0xff;
1368 ✗ *q++ = 0x10;
1369 ✗ memset(q, STUFFING_BYTE, TS_PACKET_SIZE - (q - buf)); /* data_bytes may be assigned any value */
1370 ✗ write_packet(s, buf);
1371 ✗ }
1372
1373 /* Write a single transport stream packet with a PCR and no payload */
1374 ✗ static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
1375 {
1376 ✗ MpegTSWrite *ts = s->priv_data;
1377 ✗ MpegTSWriteStream *ts_st = st->priv_data;
1378 uint8_t *q;
1379 uint8_t buf[TS_PACKET_SIZE];
1380
1381 ✗ q = buf;
1382 ✗ *q++ = SYNC_BYTE;
1383 ✗ *q++ = ts_st->pid >> 8;
1384 ✗ *q++ = ts_st->pid;
1385 ✗ *q++ = 0x20 | ts_st->cc; /* Adaptation only */
1386 /* Continuity Count field does not increment (see 13818-1 section 2.4.3.3) */
1387 ✗ *q++ = TS_PACKET_SIZE - 5; /* Adaptation Field Length */
1388 ✗ *q++ = 0x10; /* Adaptation flags: PCR present */
1389 ✗ if (ts_st->discontinuity) {
1390 ✗ q[-1] |= 0x80;
1391 ✗ ts_st->discontinuity = 0;
1392 }
1393
1394 /* PCR coded into 6 bytes */
1395 ✗ q += write_pcr_bits(q, get_pcr(ts));
1396
1397 /* stuffing bytes */
1398 ✗ memset(q, STUFFING_BYTE, TS_PACKET_SIZE - (q - buf));
1399 ✗ write_packet(s, buf);
1400 ✗ }
1401
1402 4118 static void write_pts(uint8_t *q, int fourbits, int64_t pts)
1403 {
1404 int val;
1405
1406 4118 val = fourbits << 4 | (((pts >> 30) & 0x07) << 1) | 1;
1407 4118 *q++ = val;
1408 4118 val = (((pts >> 15) & 0x7fff) << 1) | 1;
1409 4118 *q++ = val >> 8;
1410 4118 *q++ = val;
1411 4118 val = (((pts) & 0x7fff) << 1) | 1;
1412 4118 *q++ = val >> 8;
1413 4118 *q++ = val;
1414 4118 }
1415
1416 /* Set an adaptation field flag in an MPEG-TS packet*/
1417 7780 static void set_af_flag(uint8_t *pkt, int flag)
1418 {
1419 // expect at least one flag to set
1420
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7780 times.
 7780 av_assert0(flag);
1421
1422
2/2
✓ Branch 0 taken 3928 times.
✓ Branch 1 taken 3852 times.
 7780 if ((pkt[3] & 0x20) == 0) {
1423 // no AF yet, set adaptation field flag
1424 3928 pkt[3] |= 0x20;
1425 // 1 byte length, no flags
1426 3928 pkt[4] = 1;
1427 3928 pkt[5] = 0;
1428 }
1429 7780 pkt[5] |= flag;
1430 7780 }
1431
1432 /* Extend the adaptation field by size bytes */
1433 3925 static void extend_af(uint8_t *pkt, int size)
1434 {
1435 // expect already existing adaptation field
1436
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3925 times.
 3925 av_assert0(pkt[3] & 0x20);
1437 3925 pkt[4] += size;
1438 3925 }
1439
1440 /* Get a pointer to MPEG-TS payload (right after TS packet header) */
1441 11705 static uint8_t *get_ts_payload_start(uint8_t *pkt)
1442 {
1443
1/2
✓ Branch 0 taken 11705 times.
✗ Branch 1 not taken.
 11705 if (pkt[3] & 0x20)
1444 11705 return pkt + 5 + pkt[4];
1445 else
1446 ✗ return pkt + 4;
1447 }
1448
1449 3997 static int get_pes_stream_id(AVFormatContext *s, AVStream *st, int stream_id, int *async)
1450 {
1451 3997 MpegTSWrite *ts = s->priv_data;
1452 3997 *async = 0;
1453
2/2
✓ Branch 0 taken 151 times.
✓ Branch 1 taken 3846 times.
 3997 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1454
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 151 times.
 151 if (st->codecpar->codec_id == AV_CODEC_ID_DIRAC)
1455 ✗ return STREAM_ID_EXTENDED_STREAM_ID;
1456 else
1457 151 return STREAM_ID_VIDEO_STREAM_0;
1458
1/2
✓ Branch 0 taken 3846 times.
✗ Branch 1 not taken.
 3846 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1459
2/2
✓ Branch 0 taken 66 times.
✓ Branch 1 taken 3780 times.
 3846 (st->codecpar->codec_id == AV_CODEC_ID_MP2 ||
1460
1/2
✓ Branch 0 taken 66 times.
✗ Branch 1 not taken.
 66 st->codecpar->codec_id == AV_CODEC_ID_MP3 ||
1461
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 66 times.
 66 st->codecpar->codec_id == AV_CODEC_ID_AAC)) {
1462 3780 return STREAM_ID_AUDIO_STREAM_0;
1463
1/2
✓ Branch 0 taken 66 times.
✗ Branch 1 not taken.
 66 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1464
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 66 times.
 66 st->codecpar->codec_id == AV_CODEC_ID_AC3 &&
1465 ✗ ts->m2ts_mode) {
1466 ✗ return STREAM_ID_EXTENDED_STREAM_ID;
1467
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 66 times.
 66 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA &&
1468 ✗ st->codecpar->codec_id == AV_CODEC_ID_TIMED_ID3) {
1469 ✗ return STREAM_ID_PRIVATE_STREAM_1;
1470
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 66 times.
 66 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
1471 ✗ if (st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV &&
1472 stream_id == STREAM_ID_PRIVATE_STREAM_1) /* asynchronous KLV */
1473 ✗ *async = 1;
1474 ✗ return stream_id != -1 ? stream_id : STREAM_ID_METADATA_STREAM;
1475 } else {
1476 66 return STREAM_ID_PRIVATE_STREAM_1;
1477 }
1478 }
1479
1480 /* Add a PES header to the front of the payload, and segment into an integer
1481 * number of TS packets. The final TS packet is padded using an oversized
1482 * adaptation header to exactly fill the last TS packet.
1483 * NOTE: 'payload' contains a complete PES payload. */
1484 3997 static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
1485 const uint8_t *payload, int payload_size,
1486 int64_t pts, int64_t dts, int key, int stream_id)
1487 {
1488 3997 MpegTSWriteStream *ts_st = st->priv_data;
1489 3997 MpegTSWrite *ts = s->priv_data;
1490 uint8_t buf[TS_PACKET_SIZE];
1491 uint8_t *q;
1492 int val, is_start, len, header_len, write_pcr, flags;
1493 int afc_len, stuffing_len;
1494 3997 int is_dvb_subtitle = (st->codecpar->codec_id == AV_CODEC_ID_DVB_SUBTITLE);
1495 3997 int is_dvb_teletext = (st->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT);
1496 3997 int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE);
1497
5/6
✓ Branch 0 taken 151 times.
✓ Branch 1 taken 3846 times.
✓ Branch 2 taken 9 times.
✓ Branch 3 taken 142 times.
✓ Branch 4 taken 9 times.
✗ Branch 5 not taken.
 3997 int force_pat = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && key && !ts_st->prev_payload_key;
1498 3997 int force_sdt = 0;
1499 3997 int force_nit = 0;
1500
1501
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 3997 av_assert0(ts_st->payload != buf || st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO);
1502
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 3997 if (ts->flags & MPEGTS_FLAG_PAT_PMT_AT_FRAMES && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1503 ✗ force_pat = 1;
1504 }
1505
1506
2/2
✓ Branch 0 taken 61 times.
✓ Branch 1 taken 3936 times.
 3997 if (ts->flags & MPEGTS_FLAG_REEMIT_PAT_PMT) {
1507 61 force_pat = 1;
1508 61 force_sdt = 1;
1509 61 force_nit = 1;
1510 61 ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT;
1511 }
1512
1513 3997 is_start = 1;
1514
2/2
✓ Branch 0 taken 64443 times.
✓ Branch 1 taken 3997 times.
 68440 while (payload_size > 0) {
1515 64443 int64_t pcr = AV_NOPTS_VALUE;
1516
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 64443 times.
 64443 if (ts->mux_rate > 1)
1517 ✗ pcr = get_pcr(ts);
1518
1/2
✓ Branch 0 taken 64443 times.
✗ Branch 1 not taken.
 64443 else if (dts != AV_NOPTS_VALUE)
1519 64443 pcr = (dts - delay) * SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1520
1521 64443 retransmit_si_info(s, force_pat, force_sdt, force_nit, pcr);
1522 64443 force_pat = 0;
1523 64443 force_sdt = 0;
1524 64443 force_nit = 0;
1525
1526 64443 write_pcr = 0;
1527
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 64443 times.
 64443 if (ts->mux_rate > 1) {
1528 /* Send PCR packets for all PCR streams if needed */
1529 ✗ pcr = get_pcr(ts);
1530 ✗ if (pcr >= ts->next_pcr) {
1531 ✗ int64_t next_pcr = INT64_MAX;
1532 ✗ for (int i = 0; i < s->nb_streams; i++) {
1533 /* Make the current stream the last, because for that we
1534 * can insert the pcr into the payload later */
1535 ✗ int st2_index = i < st->index ? i : (i + 1 == s->nb_streams ? st->index : i + 1);
1536 ✗ AVStream *st2 = s->streams[st2_index];
1537 ✗ MpegTSWriteStream *ts_st2 = st2->priv_data;
1538 ✗ if (ts_st2->pcr_period) {
1539 ✗ if (pcr - ts_st2->last_pcr >= ts_st2->pcr_period) {
1540 ✗ ts_st2->last_pcr = FFMAX(pcr - ts_st2->pcr_period, ts_st2->last_pcr + ts_st2->pcr_period);
1541 ✗ if (st2 != st) {
1542 ✗ mpegts_insert_pcr_only(s, st2);
1543 ✗ pcr = get_pcr(ts);
1544 } else {
1545 ✗ write_pcr = 1;
1546 }
1547 }
1548 ✗ next_pcr = FFMIN(next_pcr, ts_st2->last_pcr + ts_st2->pcr_period);
1549 }
1550 }
1551 ✗ ts->next_pcr = next_pcr;
1552 }
1553 ✗ if (dts != AV_NOPTS_VALUE && (dts - pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR) > delay) {
1554 /* pcr insert gets priority over null packet insert */
1555 ✗ if (write_pcr)
1556 ✗ mpegts_insert_pcr_only(s, st);
1557 else
1558 ✗ mpegts_insert_null_packet(s);
1559 /* recalculate write_pcr and possibly retransmit si_info */
1560 ✗ continue;
1561 }
1562
3/4
✓ Branch 0 taken 64398 times.
✓ Branch 1 taken 45 times.
✓ Branch 2 taken 64398 times.
✗ Branch 3 not taken.
 64443 } else if (ts_st->pcr_period && pcr != AV_NOPTS_VALUE) {
1563
4/4
✓ Branch 0 taken 3200 times.
✓ Branch 1 taken 61198 times.
✓ Branch 2 taken 2648 times.
✓ Branch 3 taken 552 times.
 64398 if (pcr - ts_st->last_pcr >= ts_st->pcr_period && is_start) {
1564 2648 ts_st->last_pcr = FFMAX(pcr - ts_st->pcr_period, ts_st->last_pcr + ts_st->pcr_period);
1565 2648 write_pcr = 1;
1566 }
1567 }
1568
1569 /* prepare packet header */
1570 64443 q = buf;
1571 64443 *q++ = SYNC_BYTE;
1572 64443 val = ts_st->pid >> 8;
1573
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 64443 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 64443 if (ts->m2ts_mode && st->codecpar->codec_id == AV_CODEC_ID_AC3)
1574 ✗ val |= 0x20;
1575
2/2
✓ Branch 0 taken 3997 times.
✓ Branch 1 taken 60446 times.
 64443 if (is_start)
1576 3997 val |= 0x40;
1577 64443 *q++ = val;
1578 64443 *q++ = ts_st->pid;
1579 64443 ts_st->cc = ts_st->cc + 1 & 0xf;
1580 64443 *q++ = 0x10 | ts_st->cc; // payload indicator + CC
1581
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 64443 times.
 64443 if (ts_st->discontinuity) {
1582 ✗ set_af_flag(buf, 0x80);
1583 ✗ q = get_ts_payload_start(buf);
1584 ✗ ts_st->discontinuity = 0;
1585 }
1586
3/4
✓ Branch 0 taken 64443 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 61686 times.
✓ Branch 3 taken 2757 times.
 64443 if (!(ts->flags & MPEGTS_FLAG_OMIT_RAI) &&
1587
4/6
✓ Branch 0 taken 3855 times.
✓ Branch 1 taken 57831 times.
✓ Branch 2 taken 3855 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 3855 times.
✗ Branch 5 not taken.
 61686 key && is_start && pts != AV_NOPTS_VALUE &&
1588 !is_dvb_teletext /* adaptation+payload forbidden for teletext (ETSI EN 300 472 V1.3.1 4.1) */) {
1589 // set Random Access for key frames
1590
2/2
✓ Branch 0 taken 3852 times.
✓ Branch 1 taken 3 times.
 3855 if (ts_st->pcr_period)
1591 3852 write_pcr = 1;
1592 3855 set_af_flag(buf, 0x40);
1593 3855 q = get_ts_payload_start(buf);
1594 }
1595
2/2
✓ Branch 0 taken 3925 times.
✓ Branch 1 taken 60518 times.
 64443 if (write_pcr) {
1596 3925 set_af_flag(buf, 0x10);
1597 3925 q = get_ts_payload_start(buf);
1598 // add 11, pcr references the last byte of program clock reference base
1599
2/4
✓ Branch 0 taken 3925 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 3925 times.
 3925 if (dts != AV_NOPTS_VALUE && dts < pcr / SYSTEM_CLOCK_FREQUENCY_DIVISOR)
1600 ✗ av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\n");
1601 3925 extend_af(buf, write_pcr_bits(q, pcr));
1602 3925 q = get_ts_payload_start(buf);
1603 }
1604
2/2
✓ Branch 0 taken 3997 times.
✓ Branch 1 taken 60446 times.
 64443 if (is_start) {
1605 3997 int pes_extension = 0;
1606 3997 int pes_header_stuffing_bytes = 0;
1607 int async;
1608 /* write PES header */
1609 3997 *q++ = 0x00;
1610 3997 *q++ = 0x00;
1611 3997 *q++ = 0x01;
1612 3997 *q++ = stream_id = get_pes_stream_id(s, st, stream_id, &async);
1613
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (async)
1614 ✗ pts = dts = AV_NOPTS_VALUE;
1615
1616 3997 header_len = 0;
1617
1618
2/4
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 3997 times.
✗ Branch 3 not taken.
 3997 if (stream_id != STREAM_ID_PROGRAM_STREAM_MAP &&
1619
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 stream_id != STREAM_ID_PADDING_STREAM &&
1620
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 stream_id != STREAM_ID_PRIVATE_STREAM_2 &&
1621
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 stream_id != STREAM_ID_ECM_STREAM &&
1622
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 stream_id != STREAM_ID_EMM_STREAM &&
1623
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 stream_id != STREAM_ID_PROGRAM_STREAM_DIRECTORY &&
1624
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 stream_id != STREAM_ID_DSMCC_STREAM &&
1625 stream_id != STREAM_ID_TYPE_E_STREAM) {
1626
1627 3997 flags = 0;
1628
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 if (pts != AV_NOPTS_VALUE) {
1629 3997 header_len += 5;
1630 3997 flags |= 0x80;
1631 }
1632
4/6
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 3997 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 121 times.
✓ Branch 5 taken 3876 times.
 3997 if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
1633 121 header_len += 5;
1634 121 flags |= 0x40;
1635 }
1636
2/2
✓ Branch 0 taken 151 times.
✓ Branch 1 taken 3846 times.
 3997 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1637
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 151 times.
 151 st->codecpar->codec_id == AV_CODEC_ID_DIRAC) {
1638 /* set PES_extension_flag */
1639 ✗ pes_extension = 1;
1640 ✗ flags |= 0x01;
1641
1642 /* One byte for PES2 extension flag +
1643 * one byte for extension length +
1644 * one byte for extension id */
1645 ✗ header_len += 3;
1646 }
1647 /* for Blu-ray AC3 Audio the PES Extension flag should be as follow
1648 * otherwise it will not play sound on blu-ray
1649 */
1650
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (ts->m2ts_mode &&
1651 ✗ st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1652 ✗ st->codecpar->codec_id == AV_CODEC_ID_AC3) {
1653 /* set PES_extension_flag */
1654 ✗ pes_extension = 1;
1655 ✗ flags |= 0x01;
1656 ✗ header_len += 3;
1657 }
1658
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (is_dvb_teletext) {
1659 ✗ pes_header_stuffing_bytes = 0x24 - header_len;
1660 ✗ header_len = 0x24;
1661 }
1662 3997 len = payload_size + header_len + 3;
1663 /* 3 extra bytes should be added to DVB subtitle payload: 0x20 0x00 at the beginning and trailing 0xff */
1664
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (is_dvb_subtitle) {
1665 ✗ len += 3;
1666 ✗ payload_size++;
1667 }
1668
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (len > 0xffff)
1669 ✗ len = 0;
1670
3/4
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 151 times.
✓ Branch 3 taken 3846 times.
 3997 if (ts->omit_video_pes_length && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1671 151 len = 0;
1672 }
1673 3997 *q++ = len >> 8;
1674 3997 *q++ = len;
1675 3997 val = 0x80;
1676 /* data alignment indicator is required for subtitle and data streams */
1677
2/4
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 3997 times.
 3997 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
1678 ✗ val |= 0x04;
1679 3997 *q++ = val;
1680 3997 *q++ = flags;
1681 3997 *q++ = header_len;
1682
1/2
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
 3997 if (pts != AV_NOPTS_VALUE) {
1683 3997 write_pts(q, flags >> 6, pts);
1684 3997 q += 5;
1685 }
1686
4/6
✓ Branch 0 taken 3997 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 3997 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 121 times.
✓ Branch 5 taken 3876 times.
 3997 if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
1687 121 write_pts(q, 1, dts);
1688 121 q += 5;
1689 }
1690
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 3997 if (pes_extension && st->codecpar->codec_id == AV_CODEC_ID_DIRAC) {
1691 ✗ flags = 0x01; /* set PES_extension_flag_2 */
1692 ✗ *q++ = flags;
1693 ✗ *q++ = 0x80 | 0x01; /* marker bit + extension length */
1694 /* Set the stream ID extension flag bit to 0 and
1695 * write the extended stream ID. */
1696 ✗ *q++ = 0x00 | 0x60;
1697 }
1698 /* For Blu-ray AC3 Audio Setting extended flags */
1699
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 3997 if (ts->m2ts_mode &&
1700 ✗ pes_extension &&
1701 ✗ st->codecpar->codec_id == AV_CODEC_ID_AC3) {
1702 ✗ flags = 0x01; /* set PES_extension_flag_2 */
1703 ✗ *q++ = flags;
1704 ✗ *q++ = 0x80 | 0x01; /* marker bit + extension length */
1705 ✗ *q++ = 0x00 | 0x71; /* for AC3 Audio (specifically on blue-rays) */
1706 }
1707
1708
1709
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (is_dvb_subtitle) {
1710 /* First two fields of DVB subtitles PES data:
1711 * data_identifier: for DVB subtitle streams shall be coded with the value 0x20
1712 * subtitle_stream_id: for DVB subtitle stream shall be identified by the value 0x00 */
1713 ✗ *q++ = 0x20;
1714 ✗ *q++ = 0x00;
1715 }
1716
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3997 times.
 3997 if (is_dvb_teletext) {
1717 ✗ memset(q, STUFFING_BYTE, pes_header_stuffing_bytes);
1718 ✗ q += pes_header_stuffing_bytes;
1719 }
1720 } else {
1721 ✗ len = payload_size;
1722 ✗ *q++ = len >> 8;
1723 ✗ *q++ = len;
1724 }
1725 3997 is_start = 0;
1726 }
1727 /* header size */
1728 64443 header_len = q - buf;
1729 /* data len */
1730 64443 len = TS_PACKET_SIZE - header_len;
1731
2/2
✓ Branch 0 taken 3996 times.
✓ Branch 1 taken 60447 times.
 64443 if (len > payload_size)
1732 3996 len = payload_size;
1733 64443 stuffing_len = TS_PACKET_SIZE - header_len - len;
1734
2/2
✓ Branch 0 taken 3996 times.
✓ Branch 1 taken 60447 times.
 64443 if (stuffing_len > 0) {
1735 /* add stuffing with AFC */
1736
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 3994 times.
 3996 if (buf[3] & 0x20) {
1737 /* stuffing already present: increase its size */
1738 2 afc_len = buf[4] + 1;
1739 2 memmove(buf + 4 + afc_len + stuffing_len,
1740 2 buf + 4 + afc_len,
1741 2 header_len - (4 + afc_len));
1742 2 buf[4] += stuffing_len;
1743 2 memset(buf + 4 + afc_len, STUFFING_BYTE, stuffing_len);
1744 } else {
1745 /* add stuffing */
1746 3994 memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
1747 3994 buf[3] |= 0x20;
1748 3994 buf[4] = stuffing_len - 1;
1749
2/2
✓ Branch 0 taken 3992 times.
✓ Branch 1 taken 2 times.
 3994 if (stuffing_len >= 2) {
1750 3992 buf[5] = 0x00;
1751 3992 memset(buf + 6, STUFFING_BYTE, stuffing_len - 2);
1752 }
1753 }
1754 }
1755
1756
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 64443 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 64443 if (is_dvb_subtitle && payload_size == len) {
1757 ✗ memcpy(buf + TS_PACKET_SIZE - len, payload, len - 1);
1758 ✗ buf[TS_PACKET_SIZE - 1] = 0xff; /* end_of_PES_data_field_marker: an 8-bit field with fixed contents 0xff for DVB subtitle */
1759 } else {
1760 64443 memcpy(buf + TS_PACKET_SIZE - len, payload, len);
1761 }
1762
1763 64443 payload += len;
1764 64443 payload_size -= len;
1765 64443 write_packet(s, buf);
1766 }
1767 3997 ts_st->prev_payload_key = key;
1768 3997 }
1769
1770 205 static int check_h26x_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt, const char *codec)
1771 {
1772
2/6
✓ Branch 0 taken 205 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 205 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 205 if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001 && AV_RB24(pkt->data) != 0x000001) {
1773 ✗ if (!st->nb_frames) {
1774 ✗ av_log(s, AV_LOG_ERROR, "%s bitstream malformed, "
1775 "no startcode found, use the video bitstream filter '%s_mp4toannexb' to fix it "
1776 "('-bsf:v %s_mp4toannexb' option with ffmpeg)\n", codec, codec, codec);
1777 ✗ return AVERROR_INVALIDDATA;
1778 }
1779 ✗ av_log(s, AV_LOG_WARNING, "%s bitstream error, startcode missing, size %d", codec, pkt->size);
1780 ✗ if (pkt->size)
1781 ✗ av_log(s, AV_LOG_WARNING, " data %08"PRIX32, AV_RB32(pkt->data));
1782 ✗ av_log(s, AV_LOG_WARNING, "\n");
1783 }
1784 205 return 0;
1785 }
1786
1787 205 int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
1788 {
1789 205 return check_h26x_startcode(s, st, pkt, "h264");
1790 }
1791
1792 /* Based on GStreamer's gst-plugins-base/ext/ogg/gstoggstream.c
1793 * Released under the LGPL v2.1+, written by
1794 * Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
1795 */
1796 ✗ static int opus_get_packet_samples(AVFormatContext *s, AVPacket *pkt)
1797 {
1798 static const int durations[32] = {
1799 480, 960, 1920, 2880, /* Silk NB */
1800 480, 960, 1920, 2880, /* Silk MB */
1801 480, 960, 1920, 2880, /* Silk WB */
1802 480, 960, /* Hybrid SWB */
1803 480, 960, /* Hybrid FB */
1804 120, 240, 480, 960, /* CELT NB */
1805 120, 240, 480, 960, /* CELT NB */
1806 120, 240, 480, 960, /* CELT NB */
1807 120, 240, 480, 960, /* CELT NB */
1808 };
1809 int toc, frame_duration, nframes, duration;
1810
1811 ✗ if (pkt->size < 1)
1812 ✗ return 0;
1813
1814 ✗ toc = pkt->data[0];
1815
1816 ✗ frame_duration = durations[toc >> 3];
1817 ✗ switch (toc & 3) {
1818 ✗ case 0:
1819 ✗ nframes = 1;
1820 ✗ break;
1821 ✗ case 1:
1822 ✗ nframes = 2;
1823 ✗ break;
1824 ✗ case 2:
1825 ✗ nframes = 2;
1826 ✗ break;
1827 ✗ case 3:
1828 ✗ if (pkt->size < 2)
1829 ✗ return 0;
1830 ✗ nframes = pkt->data[1] & 63;
1831 ✗ break;
1832 }
1833
1834 ✗ duration = nframes * frame_duration;
1835 ✗ if (duration > 5760) {
1836 ✗ av_log(s, AV_LOG_WARNING,
1837 "Opus packet duration > 120 ms, invalid");
1838 ✗ return 0;
1839 }
1840
1841 ✗ return duration;
1842 }
1843
1844 ✗ static uint8_t *h26x_prefix_aud(const uint8_t *aud, const int aud_size,
1845 const uint8_t *extra_data, const int extra_size, AVPacket *pkt, int *size)
1846 {
1847 ✗ const int sz = 4; //start code size
1848 ✗ uint8_t *data = av_malloc(pkt->size + sz + aud_size + extra_size);
1849 ✗ if (!data)
1850 ✗ return NULL;
1851 ✗ AV_WB32(data, 0x00000001);
1852 ✗ memcpy(data + sz, aud, aud_size);
1853 ✗ memcpy(data + sz + aud_size, extra_data, extra_size);
1854 ✗ memcpy(data + sz + aud_size + extra_size, pkt->data, pkt->size);
1855 ✗ *size = pkt->size + sz + aud_size + extra_size;
1856 ✗ return data;
1857 }
1858
1859 #define H264_NAL_TYPE(state) (state & 0x1f)
1860 #define HEVC_NAL_TYPE(state) ((state & 0x7e) >> 1)
1861 #define VVC_NAL_TYPE(state) ((state >> 11) & 0x1f)
1862 7764 static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
1863 {
1864 7764 AVStream *st = s->streams[pkt->stream_index];
1865 7764 int size = pkt->size;
1866 7764 const uint8_t *buf = pkt->data;
1867 7764 uint8_t *data = NULL;
1868 7764 MpegTSWrite *ts = s->priv_data;
1869 7764 MpegTSWriteStream *ts_st = st->priv_data;
1870 7764 const int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) * 2;
1871 7764 const int64_t max_audio_delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) / 2;
1872 7764 int64_t dts = pkt->dts, pts = pkt->pts;
1873 7764 int opus_samples = 0;
1874 size_t side_data_size;
1875 7764 uint8_t *side_data = NULL;
1876 7764 int stream_id = -1;
1877
1878 7764 side_data = av_packet_get_side_data(pkt,
1879 AV_PKT_DATA_MPEGTS_STREAM_ID,
1880 &side_data_size);
1881
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7764 times.
 7764 if (side_data)
1882 ✗ stream_id = side_data[0];
1883
1884
3/4
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 7744 times.
✓ Branch 2 taken 20 times.
✗ Branch 3 not taken.
 7764 if (!ts->first_dts_checked && dts != AV_NOPTS_VALUE) {
1885 20 ts->first_pcr += dts * SYSTEM_CLOCK_FREQUENCY_DIVISOR;
1886 20 ts->first_dts_checked = 1;
1887 }
1888
1889
1/2
✓ Branch 0 taken 7764 times.
✗ Branch 1 not taken.
 7764 if (ts->copyts < 1) {
1890
1/2
✓ Branch 0 taken 7764 times.
✗ Branch 1 not taken.
 7764 if (pts != AV_NOPTS_VALUE)
1891 7764 pts += delay;
1892
1/2
✓ Branch 0 taken 7764 times.
✗ Branch 1 not taken.
 7764 if (dts != AV_NOPTS_VALUE)
1893 7764 dts += delay;
1894 }
1895
1896
4/6
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 7743 times.
✓ Branch 2 taken 21 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 21 times.
 7764 if (!ts_st->first_timestamp_checked && (pts == AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE)) {
1897 ✗ av_log(s, AV_LOG_ERROR, "first pts and dts value must be set\n");
1898 ✗ return AVERROR_INVALIDDATA;
1899 }
1900 7764 ts_st->first_timestamp_checked = 1;
1901
1902
2/2
✓ Branch 0 taken 126 times.
✓ Branch 1 taken 7638 times.
 7764 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
1903 126 const uint8_t *p = buf, *buf_end = p + size;
1904 126 const uint8_t *found_aud = NULL, *found_aud_end = NULL;
1905 int nal_type;
1906 126 uint32_t state = -1;
1907
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 120 times.
 126 int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
1908 126 int ret = ff_check_h264_startcode(s, st, pkt);
1909
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 126 times.
 126 if (ret < 0)
1910 ✗ return ret;
1911
1912
3/4
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 120 times.
✓ Branch 2 taken 6 times.
✗ Branch 3 not taken.
 126 if (extradd && AV_RB24(st->codecpar->extradata) > 1)
1913 6 extradd = 0;
1914
1915 /* Ensure that all pictures are prefixed with an AUD, and that
1916 * IDR pictures are also prefixed with SPS and PPS. SPS and PPS
1917 * are assumed to be available in 'extradata' if not found in-band. */
1918 do {
1919 127 p = avpriv_find_start_code(p, buf_end, &state);
1920 127 nal_type = H264_NAL_TYPE(state);
1921 127 av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type);
1922
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 127 times.
 127 if (nal_type == H264_NAL_SPS)
1923 ✗ extradd = 0;
1924
2/2
✓ Branch 0 taken 126 times.
✓ Branch 1 taken 1 times.
 127 if (nal_type == H264_NAL_AUD) {
1925 126 found_aud = p - 4; // start of the 0x000001 start code.
1926 126 found_aud_end = p + 1; // first byte past the AUD.
1927
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 126 times.
 126 if (found_aud < buf)
1928 ✗ found_aud = buf;
1929
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 126 times.
 126 if (buf_end < found_aud_end)
1930 ✗ found_aud_end = buf_end;
1931 }
1932 } while (p < buf_end
1933
1/2
✓ Branch 0 taken 127 times.
✗ Branch 1 not taken.
 127 && nal_type != H264_NAL_IDR_SLICE
1934
1/2
✓ Branch 0 taken 127 times.
✗ Branch 1 not taken.
 127 && nal_type != H264_NAL_SLICE
1935
4/6
✓ Branch 0 taken 127 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 127 times.
✓ Branch 4 taken 1 times.
✓ Branch 5 taken 126 times.
 254 && (extradd > 0 || !found_aud));
1936
1/2
✓ Branch 0 taken 126 times.
✗ Branch 1 not taken.
 126 if (nal_type != H264_NAL_IDR_SLICE)
1937 126 extradd = 0;
1938
1939
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 126 times.
 126 if (!found_aud) {
1940 /* Prefix 'buf' with the missing AUD, and extradata if needed. */
1941 ✗ const uint8_t aud[] = {
1942 H264_NAL_AUD,
1943 0xf0, // any slice type (0xe) + rbsp stop one bit
1944 };
1945 ✗ buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud),
1946 ✗ st->codecpar->extradata, extradd, pkt, &size);
1947 ✗ if (!data)
1948 ✗ return AVERROR(ENOMEM);
1949
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 126 times.
 126 } else if (extradd != 0) {
1950 /* Move the AUD up to the beginning of the frame, where the H.264
1951 * spec requires it to appear. Emit the extradata after it. */
1952 PutByteContext pb;
1953 ✗ const int new_pkt_size = pkt->size + 1 + extradd;
1954 ✗ data = av_malloc(new_pkt_size);
1955 ✗ if (!data)
1956 ✗ return AVERROR(ENOMEM);
1957 ✗ bytestream2_init_writer(&pb, data, new_pkt_size);
1958 ✗ bytestream2_put_byte(&pb, 0x00);
1959 ✗ bytestream2_put_buffer(&pb, found_aud, found_aud_end - found_aud);
1960 ✗ bytestream2_put_buffer(&pb, st->codecpar->extradata, extradd);
1961 ✗ bytestream2_put_buffer(&pb, pkt->data, found_aud - pkt->data);
1962 ✗ bytestream2_put_buffer(&pb, found_aud_end, buf_end - found_aud_end);
1963 ✗ av_assert0(new_pkt_size == bytestream2_tell_p(&pb));
1964 ✗ buf = data;
1965 ✗ size = new_pkt_size;
1966 }
1967
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7638 times.
 7638 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
1968 ✗ if (pkt->size < 2) {
1969 ✗ av_log(s, AV_LOG_ERROR, "AAC packet too short\n");
1970 ✗ return AVERROR_INVALIDDATA;
1971 }
1972 ✗ if ((AV_RB16(pkt->data) & 0xfff0) != 0xfff0) {
1973 int ret;
1974 ✗ AVPacket *pkt2 = ts->pkt;
1975
1976 ✗ if (!ts_st->amux) {
1977 ✗ av_log(s, AV_LOG_ERROR, "AAC bitstream not in ADTS format "
1978 "and extradata missing\n");
1979 } else {
1980 ✗ av_packet_unref(pkt2);
1981 ✗ pkt2->data = pkt->data;
1982 ✗ pkt2->size = pkt->size;
1983 ✗ av_assert0(pkt->dts != AV_NOPTS_VALUE);
1984 ✗ pkt2->dts = av_rescale_q(pkt->dts, st->time_base, ts_st->amux->streams[0]->time_base);
1985
1986 ✗ ret = avio_open_dyn_buf(&ts_st->amux->pb);
1987 ✗ if (ret < 0)
1988 ✗ return ret;
1989
1990 ✗ ret = av_write_frame(ts_st->amux, pkt2);
1991 ✗ if (ret < 0) {
1992 ✗ ffio_free_dyn_buf(&ts_st->amux->pb);
1993 ✗ return ret;
1994 }
1995 ✗ size = avio_close_dyn_buf(ts_st->amux->pb, &data);
1996 ✗ ts_st->amux->pb = NULL;
1997 ✗ buf = data;
1998 }
1999 }
2000
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7638 times.
 7638 } else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
2001 ✗ const uint8_t *p = buf, *buf_end = p + size;
2002 ✗ uint32_t state = -1;
2003 int nal_type;
2004 ✗ int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2005 ✗ int ret = check_h26x_startcode(s, st, pkt, "hevc");
2006 ✗ if (ret < 0)
2007 ✗ return ret;
2008
2009 ✗ if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2010 ✗ extradd = 0;
2011
2012 do {
2013 ✗ p = avpriv_find_start_code(p, buf_end, &state);
2014 ✗ nal_type = HEVC_NAL_TYPE(state);
2015 ✗ av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type);
2016 ✗ if (nal_type == HEVC_NAL_VPS)
2017 ✗ extradd = 0;
2018 ✗ } while (p < buf_end && nal_type != HEVC_NAL_AUD && nal_type >= HEVC_NAL_VPS);
2019
2020 ✗ if (nal_type < HEVC_NAL_BLA_W_LP || nal_type >= HEVC_NAL_RSV_VCL24)
2021 ✗ extradd = 0;
2022 ✗ if (nal_type != HEVC_NAL_AUD) { // AUD NAL
2023 ✗ const uint8_t aud[] = {
2024 (HEVC_NAL_AUD << 1),
2025 0x01,
2026 0x50, // any slice type (0x4) + rbsp stop one bit
2027 };
2028 ✗ buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud),
2029 ✗ st->codecpar->extradata, extradd, pkt, &size);
2030 ✗ if (!data)
2031 ✗ return AVERROR(ENOMEM);
2032 }
2033
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7638 times.
 7638 } else if (st->codecpar->codec_id == AV_CODEC_ID_VVC) {
2034 ✗ const uint8_t *p = buf, *buf_end = p + size;
2035 ✗ uint32_t state = -1;
2036 ✗ uint32_t nal_type = -1;
2037 ✗ int extradd = (pkt->flags & AV_PKT_FLAG_KEY) ? st->codecpar->extradata_size : 0;
2038 ✗ int ret = check_h26x_startcode(s, st, pkt, "vvc");
2039 ✗ if (ret < 0)
2040 ✗ return ret;
2041
2042 ✗ if (extradd && AV_RB24(st->codecpar->extradata) > 1)
2043 ✗ extradd = 0;
2044
2045 do {
2046 ✗ p = avpriv_find_start_code(p, buf_end, &state);
2047 // state contains byte behind start code, p points 2 bytes behind start code
2048 ✗ nal_type = VVC_NAL_TYPE(state);
2049 ✗ av_log(s, AV_LOG_TRACE, "nal %"PRId32"\n", nal_type );
2050 ✗ if (nal_type == VVC_VPS_NUT)
2051 ✗ extradd = 0;
2052 ✗ } while (p < buf_end && nal_type != VVC_AUD_NUT && nal_type >= VVC_OPI_NUT);
2053
2054 ✗ if (nal_type >= VVC_OPI_NUT)
2055 ✗ extradd = 0;
2056 ✗ if (nal_type != VVC_AUD_NUT) { // AUD NAL
2057 ✗ const uint8_t aud[] = {
2058 0, // forbidden_zero_bit, nuh_reserved_zero_bit, nuh_layer_id
2059 (VVC_AUD_NUT << 3) | 1, // nal_unit_type, nuh_temporal_id_plus1(1)
2060 ✗ (pkt->flags & AV_PKT_FLAG_KEY) << 7 | 0x28, // aud_irap_or_gdr_flag, aud_pic_type(2), rbsp_stop_one_bit
2061 };
2062 ✗ buf = data = h26x_prefix_aud(aud, FF_ARRAY_ELEMS(aud), st->codecpar->extradata, extradd, pkt, &size);
2063 ✗ if (!data)
2064 ✗ return AVERROR(ENOMEM);
2065 }
2066
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7638 times.
 7638 } else if (st->codecpar->codec_id == AV_CODEC_ID_OPUS) {
2067 ✗ if (pkt->size < 2) {
2068 ✗ av_log(s, AV_LOG_ERROR, "Opus packet too short\n");
2069 ✗ return AVERROR_INVALIDDATA;
2070 }
2071
2072 /* Add Opus control header */
2073 ✗ if ((AV_RB16(pkt->data) >> 5) != 0x3ff) {
2074 uint8_t *side_data;
2075 size_t side_data_size;
2076 int i, n;
2077 int ctrl_header_size;
2078 ✗ int trim_start = 0, trim_end = 0;
2079
2080 ✗ opus_samples = opus_get_packet_samples(s, pkt);
2081
2082 ✗ side_data = av_packet_get_side_data(pkt,
2083 AV_PKT_DATA_SKIP_SAMPLES,
2084 &side_data_size);
2085
2086 ✗ if (side_data && side_data_size >= 10) {
2087 ✗ trim_end = AV_RL32(side_data + 4) * 48000 / st->codecpar->sample_rate;
2088 }
2089
2090 ✗ ctrl_header_size = pkt->size + 2 + pkt->size / 255 + 1;
2091 ✗ if (ts_st->opus_pending_trim_start)
2092 ✗ ctrl_header_size += 2;
2093 ✗ if (trim_end)
2094 ✗ ctrl_header_size += 2;
2095
2096 ✗ data = av_malloc(ctrl_header_size);
2097 ✗ if (!data)
2098 ✗ return AVERROR(ENOMEM);
2099
2100 ✗ data[0] = 0x7f;
2101 ✗ data[1] = 0xe0;
2102 ✗ if (ts_st->opus_pending_trim_start)
2103 ✗ data[1] |= 0x10;
2104 ✗ if (trim_end)
2105 ✗ data[1] |= 0x08;
2106
2107 ✗ n = pkt->size;
2108 ✗ i = 2;
2109 do {
2110 ✗ data[i] = FFMIN(n, 255);
2111 ✗ n -= 255;
2112 ✗ i++;
2113 ✗ } while (n >= 0);
2114
2115 ✗ av_assert0(2 + pkt->size / 255 + 1 == i);
2116
2117 ✗ if (ts_st->opus_pending_trim_start) {
2118 ✗ trim_start = FFMIN(ts_st->opus_pending_trim_start, opus_samples);
2119 ✗ AV_WB16(data + i, trim_start);
2120 ✗ i += 2;
2121 ✗ ts_st->opus_pending_trim_start -= trim_start;
2122 }
2123 ✗ if (trim_end) {
2124 ✗ trim_end = FFMIN(trim_end, opus_samples - trim_start);
2125 ✗ AV_WB16(data + i, trim_end);
2126 ✗ i += 2;
2127 }
2128
2129 ✗ memcpy(data + i, pkt->data, pkt->size);
2130 ✗ buf = data;
2131 ✗ size = ctrl_header_size;
2132 } else {
2133 /* TODO: Can we get TS formatted data here? If so we will
2134 * need to count the samples of that too! */
2135 ✗ av_log(s, AV_LOG_WARNING, "Got MPEG-TS formatted Opus data, unhandled");
2136 }
2137
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 7638 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 7638 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3 && !ts_st->dvb_ac3_desc) {
2138 ✗ AC3HeaderInfo *hdr = NULL;
2139
2140 ✗ if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) >= 0) {
2141 uint8_t number_of_channels_flag;
2142 uint8_t service_type_flag;
2143 ✗ uint8_t full_service_flag = 1;
2144 DVBAC3Descriptor *dvb_ac3_desc;
2145
2146 ✗ dvb_ac3_desc = av_mallocz(sizeof(*dvb_ac3_desc));
2147 ✗ if (!dvb_ac3_desc) {
2148 ✗ av_free(hdr);
2149 ✗ return AVERROR(ENOMEM);
2150 }
2151
2152 ✗ service_type_flag = hdr->bitstream_mode;
2153 ✗ switch (hdr->channel_mode) {
2154 ✗ case AC3_CHMODE_DUALMONO:
2155 ✗ number_of_channels_flag = 1;
2156 ✗ break;
2157 ✗ case AC3_CHMODE_MONO:
2158 ✗ number_of_channels_flag = 0;
2159 ✗ break;
2160 ✗ case AC3_CHMODE_STEREO:
2161 ✗ if (hdr->dolby_surround_mode == AC3_DSURMOD_ON)
2162 ✗ number_of_channels_flag = 3;
2163 else
2164 ✗ number_of_channels_flag = 2;
2165 ✗ break;
2166 ✗ case AC3_CHMODE_3F:
2167 case AC3_CHMODE_2F1R:
2168 case AC3_CHMODE_3F1R:
2169 case AC3_CHMODE_2F2R:
2170 case AC3_CHMODE_3F2R:
2171 ✗ number_of_channels_flag = 4;
2172 ✗ break;
2173 ✗ default: /* reserved */
2174 ✗ number_of_channels_flag = 7;
2175 ✗ break;
2176 }
2177
2178 ✗ if (service_type_flag == 1 || service_type_flag == 4 ||
2179 ✗ (service_type_flag == 7 && !number_of_channels_flag))
2180 ✗ full_service_flag = 0;
2181
2182 ✗ dvb_ac3_desc->component_type_flag = 1;
2183 ✗ dvb_ac3_desc->component_type = (full_service_flag << 6) |
2184 ✗ ((service_type_flag & 0x7) << 3) |
2185 ✗ (number_of_channels_flag & 0x7);
2186 ✗ dvb_ac3_desc->bsid_flag = 1;
2187 ✗ dvb_ac3_desc->bsid = hdr->bitstream_id;
2188 ✗ dvb_ac3_desc->mainid_flag = 0;
2189 ✗ dvb_ac3_desc->asvc_flag = 0;
2190
2191 ✗ ts_st->dvb_ac3_desc = dvb_ac3_desc;
2192 }
2193 ✗ av_free(hdr);
2194
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 7638 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 7638 } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_BLURAY && ts->m2ts_mode) {
2195 ✗ mpegts_write_pes(s, st, buf, size, pts, dts,
2196 ✗ pkt->flags & AV_PKT_FLAG_KEY, stream_id);
2197 ✗ return 0;
2198 }
2199
2200
5/6
✓ Branch 0 taken 7481 times.
✓ Branch 1 taken 283 times.
✓ Branch 2 taken 3767 times.
✓ Branch 3 taken 3714 times.
✓ Branch 4 taken 3767 times.
✗ Branch 5 not taken.
 7764 if (ts_st->payload_size && (ts_st->payload_size + size > ts->pes_payload_size ||
2201
1/2
✓ Branch 0 taken 3767 times.
✗ Branch 1 not taken.
 3767 (dts != AV_NOPTS_VALUE && ts_st->payload_dts != AV_NOPTS_VALUE &&
2202
1/2
✓ Branch 0 taken 3767 times.
✗ Branch 1 not taken.
 3767 dts - ts_st->payload_dts >= max_audio_delay) ||
2203
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3767 times.
 3767 ts_st->opus_queued_samples + opus_samples >= 5760 /* 120ms */)) {
2204 3714 mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size,
2205 ts_st->payload_pts, ts_st->payload_dts,
2206 3714 ts_st->payload_flags & AV_PKT_FLAG_KEY, stream_id);
2207 3714 ts_st->payload_size = 0;
2208 3714 ts_st->opus_queued_samples = 0;
2209 }
2210
2211
4/4
✓ Branch 0 taken 7613 times.
✓ Branch 1 taken 151 times.
✓ Branch 2 taken 65 times.
✓ Branch 3 taken 7548 times.
 7764 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO || size > ts->pes_payload_size) {
2212
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 216 times.
 216 av_assert0(!ts_st->payload_size);
2213 // for video and subtitle, write a single pes packet
2214 216 mpegts_write_pes(s, st, buf, size, pts, dts,
2215 216 pkt->flags & AV_PKT_FLAG_KEY, stream_id);
2216 216 ts_st->opus_queued_samples = 0;
2217 216 av_free(data);
2218 216 return 0;
2219 }
2220
2221
2/2
✓ Branch 0 taken 3781 times.
✓ Branch 1 taken 3767 times.
 7548 if (!ts_st->payload_size) {
2222 3781 ts_st->payload_pts = pts;
2223 3781 ts_st->payload_dts = dts;
2224 3781 ts_st->payload_flags = pkt->flags;
2225 }
2226
2227 7548 memcpy(ts_st->payload + ts_st->payload_size, buf, size);
2228 7548 ts_st->payload_size += size;
2229 7548 ts_st->opus_queued_samples += opus_samples;
2230
2231 7548 av_free(data);
2232
2233 7548 return 0;
2234 }
2235
2236 136 static void mpegts_write_flush(AVFormatContext *s)
2237 {
2238 136 MpegTSWrite *ts = s->priv_data;
2239 int i;
2240
2241 /* flush current packets */
2242
2/2
✓ Branch 0 taken 137 times.
✓ Branch 1 taken 136 times.
 273 for (i = 0; i < s->nb_streams; i++) {
2243 137 AVStream *st = s->streams[i];
2244 137 MpegTSWriteStream *ts_st = st->priv_data;
2245
2/2
✓ Branch 0 taken 67 times.
✓ Branch 1 taken 70 times.
 137 if (ts_st->payload_size > 0) {
2246 67 mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size,
2247 ts_st->payload_pts, ts_st->payload_dts,
2248 67 ts_st->payload_flags & AV_PKT_FLAG_KEY, -1);
2249 67 ts_st->payload_size = 0;
2250 67 ts_st->opus_queued_samples = 0;
2251 }
2252 }
2253
2254
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 136 times.
 136 if (ts->m2ts_mode) {
2255 ✗ int packets = (avio_tell(s->pb) / (TS_PACKET_SIZE + 4)) % 32;
2256 ✗ while (packets++ < 32)
2257 ✗ mpegts_insert_null_packet(s);
2258 }
2259 136 }
2260
2261 7880 static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
2262 {
2263
2/2
✓ Branch 0 taken 116 times.
✓ Branch 1 taken 7764 times.
 7880 if (!pkt) {
2264 116 mpegts_write_flush(s);
2265 116 return 1;
2266 } else {
2267 7764 return mpegts_write_packet_internal(s, pkt);
2268 }
2269 }
2270
2271 20 static int mpegts_write_end(AVFormatContext *s)
2272 {
2273
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (s->pb)
2274 20 mpegts_write_flush(s);
2275
2276 20 return 0;
2277 }
2278
2279 20 static void mpegts_deinit(AVFormatContext *s)
2280 {
2281 20 MpegTSWrite *ts = s->priv_data;
2282 MpegTSService *service;
2283 int i;
2284
2285
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 20 times.
 41 for (i = 0; i < s->nb_streams; i++) {
2286 21 AVStream *st = s->streams[i];
2287 21 MpegTSWriteStream *ts_st = st->priv_data;
2288
1/2
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
 21 if (ts_st) {
2289 21 av_freep(&ts_st->dvb_ac3_desc);
2290 21 av_freep(&ts_st->payload);
2291
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (ts_st->amux) {
2292 ✗ avformat_free_context(ts_st->amux);
2293 ✗ ts_st->amux = NULL;
2294 }
2295 }
2296 }
2297
2298
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 20 times.
 40 for (i = 0; i < ts->nb_services; i++) {
2299 20 service = ts->services[i];
2300 20 av_freep(&service);
2301 }
2302 20 av_freep(&ts->services);
2303 20 }
2304
2305 15 static int mpegts_check_bitstream(AVFormatContext *s, AVStream *st,
2306 const AVPacket *pkt)
2307 {
2308 const struct Entry {
2309 enum AVCodecID id;
2310 const char *bsf_name;
2311 uint8_t mask;
2312 uint8_t value;
2313 15 } list[] = {
2314 { AV_CODEC_ID_H264, "h264_mp4toannexb", 0xff, 0x01 /* configurationVersion in AVCDecoderConfigurationRecord */},
2315 { AV_CODEC_ID_HEVC, "hevc_mp4toannexb", 0xff, 0x01 /* configurationVersion in HEVCDecoderConfigurationRecord */},
2316 { AV_CODEC_ID_VVC, "vvc_mp4toannexb", 0xf8, 0xf8 /* reserved '11111'b in VVCDecoderConfigurationRecord */},
2317 };
2318
2319
2/2
✓ Branch 0 taken 43 times.
✓ Branch 1 taken 14 times.
 57 for (int i = 0; i < FF_ARRAY_ELEMS(list); i++) {
2320 43 const struct Entry *e = list + i;
2321
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 42 times.
 43 if (e->id == st->codecpar->codec_id &&
2322
2/4
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
✗ Branch 3 not taken.
 1 pkt->size >= 5 && AV_RB32(pkt->data) != 0x0000001 &&
2323
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 (AV_RB24(pkt->data) != 0x000001 ||
2324 ✗ (st->codecpar->extradata_size > 0 &&
2325 ✗ ((st->codecpar->extradata[0] & e->mask) == e->value))))
2326 1 return ff_stream_add_bitstream_filter(st, e->bsf_name, NULL);
2327 }
2328 14 return 1;
2329 }
2330
2331 #define OFFSET(x) offsetof(MpegTSWrite, x)
2332 #define ENC AV_OPT_FLAG_ENCODING_PARAM
2333 static const AVOption options[] = {
2334 { "mpegts_transport_stream_id", "Set transport_stream_id field.",
2335 OFFSET(transport_stream_id), AV_OPT_TYPE_INT, { .i64 = 0x0001 }, 0x0001, 0xffff, ENC },
2336 { "mpegts_original_network_id", "Set original_network_id field.",
2337 OFFSET(original_network_id), AV_OPT_TYPE_INT, { .i64 = DVB_PRIVATE_NETWORK_START }, 0x0001, 0xffff, ENC },
2338 { "mpegts_service_id", "Set service_id field.",
2339 OFFSET(service_id), AV_OPT_TYPE_INT, { .i64 = 0x0001 }, 0x0001, 0xffff, ENC },
2340 { "mpegts_service_type", "Set service_type field.",
2341 OFFSET(service_type), AV_OPT_TYPE_INT, { .i64 = 0x01 }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2342 { "digital_tv", "Digital Television.",
2343 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_DIGITAL_TV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2344 { "digital_radio", "Digital Radio.",
2345 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_DIGITAL_RADIO }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2346 { "teletext", "Teletext.",
2347 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_TELETEXT }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2348 { "advanced_codec_digital_radio", "Advanced Codec Digital Radio.",
2349 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2350 { "mpeg2_digital_hdtv", "MPEG2 Digital HDTV.",
2351 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2352 { "advanced_codec_digital_sdtv", "Advanced Codec Digital SDTV.",
2353 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2354 { "advanced_codec_digital_hdtv", "Advanced Codec Digital HDTV.",
2355 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2356 { "hevc_digital_hdtv", "HEVC Digital Television Service.",
2357 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV }, 0x01, 0xff, ENC, .unit = "mpegts_service_type" },
2358 { "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
2359 OFFSET(pmt_start_pid), AV_OPT_TYPE_INT, { .i64 = 0x1000 }, FIRST_OTHER_PID, LAST_OTHER_PID, ENC },
2360 { "mpegts_start_pid", "Set the first pid.",
2361 OFFSET(start_pid), AV_OPT_TYPE_INT, { .i64 = 0x0100 }, FIRST_OTHER_PID, LAST_OTHER_PID, ENC },
2362 { "mpegts_m2ts_mode", "Enable m2ts mode.", OFFSET(m2ts_mode), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, ENC },
2363 { "muxrate", NULL, OFFSET(mux_rate), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
2364 { "pes_payload_size", "Minimum PES packet payload in bytes",
2365 OFFSET(pes_payload_size), AV_OPT_TYPE_INT, { .i64 = DEFAULT_PES_PAYLOAD_SIZE }, 0, INT_MAX, ENC },
2366 { "mpegts_flags", "MPEG-TS muxing flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2367 { "resend_headers", "Reemit PAT/PMT before writing the next packet",
2368 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_REEMIT_PAT_PMT }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2369 { "latm", "Use LATM packetization for AAC",
2370 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_AAC_LATM }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2371 { "pat_pmt_at_frames", "Reemit PAT and PMT at each video frame",
2372 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_PAT_PMT_AT_FRAMES}, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2373 { "system_b", "Conform to System B (DVB) instead of System A (ATSC)",
2374 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_SYSTEM_B }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2375 { "initial_discontinuity", "Mark initial packets as discontinuous",
2376 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_DISCONT }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2377 { "nit", "Enable NIT transmission",
2378 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_NIT}, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2379 { "omit_rai", "Disable writing of random access indicator",
2380 0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_OMIT_RAI }, 0, INT_MAX, ENC, .unit = "mpegts_flags" },
2381 { "mpegts_copyts", "don't offset dts/pts", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, ENC },
2382 { "tables_version", "set PAT, PMT, SDT and NIT version", OFFSET(tables_version), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 31, ENC },
2383 { "omit_video_pes_length", "Omit the PES packet length for video packets",
2384 OFFSET(omit_video_pes_length), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, ENC },
2385 { "pcr_period", "PCR retransmission time in milliseconds",
2386 OFFSET(pcr_period_ms), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, ENC },
2387 { "pat_period", "PAT/PMT retransmission time limit in seconds",
2388 OFFSET(pat_period_us), AV_OPT_TYPE_DURATION, { .i64 = PAT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2389 { "sdt_period", "SDT retransmission time limit in seconds",
2390 OFFSET(sdt_period_us), AV_OPT_TYPE_DURATION, { .i64 = SDT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2391 { "nit_period", "NIT retransmission time limit in seconds",
2392 OFFSET(nit_period_us), AV_OPT_TYPE_DURATION, { .i64 = NIT_RETRANS_TIME * 1000LL }, 0, INT64_MAX, ENC },
2393 { NULL },
2394 };
2395
2396 static const AVClass mpegts_muxer_class = {
2397 .class_name = "MPEGTS muxer",
2398 .item_name = av_default_item_name,
2399 .option = options,
2400 .version = LIBAVUTIL_VERSION_INT,
2401 };
2402
2403 const FFOutputFormat ff_mpegts_muxer = {
2404 .p.name = "mpegts",
2405 .p.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
2406 .p.mime_type = "video/MP2T",
2407 .p.extensions = "ts,m2t,m2ts,mts",
2408 .priv_data_size = sizeof(MpegTSWrite),
2409 .p.audio_codec = AV_CODEC_ID_MP2,
2410 .p.video_codec = AV_CODEC_ID_MPEG2VIDEO,
2411 .init = mpegts_init,
2412 .write_packet = mpegts_write_packet,
2413 .write_trailer = mpegts_write_end,
2414 .deinit = mpegts_deinit,
2415 .check_bitstream = mpegts_check_bitstream,
2416 #if FF_API_ALLOW_FLUSH
2417 .p.flags = AVFMT_ALLOW_FLUSH | AVFMT_VARIABLE_FPS | AVFMT_NODIMENSIONS,
2418 #else
2419 .p.flags = AVFMT_VARIABLE_FPS | AVFMT_NODIMENSIONS,
2420 #endif
2421 .flags_internal = FF_OFMT_FLAG_ALLOW_FLUSH,
2422 .p.priv_class = &mpegts_muxer_class,
2423 };
2424