FFmpeg
ffmpeg_mux.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <stdatomic.h>
20 #include <stdio.h>
21 #include <string.h>
22 
23 #include "ffmpeg.h"
24 #include "ffmpeg_mux.h"
25 #include "ffmpeg_utils.h"
26 #include "sync_queue.h"
27 
28 #include "libavutil/avstring.h"
29 #include "libavutil/fifo.h"
30 #include "libavutil/intreadwrite.h"
31 #include "libavutil/log.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/time.h"
34 #include "libavutil/timestamp.h"
35 
36 #include "libavcodec/packet.h"
37 
38 #include "libavformat/avformat.h"
39 #include "libavformat/avio.h"
40 
41 typedef struct MuxThreadContext {
45 
47 {
48  return (Muxer*)of;
49 }
50 
51 static int64_t filesize(AVIOContext *pb)
52 {
53  int64_t ret = -1;
54 
55  if (pb) {
56  ret = avio_size(pb);
57  if (ret <= 0) // FIXME improve avio_size() so it works with non seekable output too
58  ret = avio_tell(pb);
59  }
60 
61  return ret;
62 }
63 
65 {
66  static const char *desc[] = {
67  [LATENCY_PROBE_DEMUX] = "demux",
68  [LATENCY_PROBE_DEC_PRE] = "decode",
69  [LATENCY_PROBE_DEC_POST] = "decode",
70  [LATENCY_PROBE_FILTER_PRE] = "filter",
71  [LATENCY_PROBE_FILTER_POST] = "filter",
72  [LATENCY_PROBE_ENC_PRE] = "encode",
73  [LATENCY_PROBE_ENC_POST] = "encode",
74  [LATENCY_PROBE_NB] = "mux",
75  };
76 
77  char latency[512];
78 
79  *latency = 0;
80  if (pkt->opaque_ref) {
81  const FrameData *fd = (FrameData*)pkt->opaque_ref->data;
82  int64_t now = av_gettime_relative();
83  int64_t total = INT64_MIN;
84 
85  int next;
86 
87  for (unsigned i = 0; i < FF_ARRAY_ELEMS(fd->wallclock); i = next) {
88  int64_t val = fd->wallclock[i];
89 
90  next = i + 1;
91 
92  if (val == INT64_MIN)
93  continue;
94 
95  if (total == INT64_MIN) {
96  total = now - val;
97  snprintf(latency, sizeof(latency), "total:%gms", total / 1e3);
98  }
99 
100  // find the next valid entry
101  for (; next <= FF_ARRAY_ELEMS(fd->wallclock); next++) {
102  int64_t val_next = (next == FF_ARRAY_ELEMS(fd->wallclock)) ?
103  now : fd->wallclock[next];
104  int64_t diff;
105 
106  if (val_next == INT64_MIN)
107  continue;
108  diff = val_next - val;
109 
110  // print those stages that take at least 5% of total
111  if (100. * diff > 5. * total) {
112  av_strlcat(latency, ", ", sizeof(latency));
113 
114  if (!strcmp(desc[i], desc[next]))
115  av_strlcat(latency, desc[i], sizeof(latency));
116  else
117  av_strlcatf(latency, sizeof(latency), "%s-%s:",
118  desc[i], desc[next]);
119 
120  av_strlcatf(latency, sizeof(latency), " %gms/%d%%",
121  diff / 1e3, (int)(100. * diff / total));
122  }
123 
124  break;
125  }
126 
127  }
128  }
129 
130  av_log(ost, AV_LOG_INFO, "muxer <- pts:%s pts_time:%s dts:%s dts_time:%s "
131  "duration:%s duration_time:%s size:%d latency(%s)\n",
135  pkt->size, *latency ? latency : "N/A");
136 }
137 
138 static int mux_fixup_ts(Muxer *mux, MuxStream *ms, AVPacket *pkt)
139 {
140  OutputStream *ost = &ms->ost;
141 
142 #if FFMPEG_OPT_VSYNC_DROP
143  if (ost->type == AVMEDIA_TYPE_VIDEO && ms->ts_drop)
144  pkt->pts = pkt->dts = AV_NOPTS_VALUE;
145 #endif
146 
147  // rescale timestamps to the stream timebase
148  if (ost->type == AVMEDIA_TYPE_AUDIO && !ost->enc) {
149  // use av_rescale_delta() for streamcopying audio, to preserve
150  // accuracy with coarse input timebases
152 
153  if (!duration)
155 
157  (AVRational){1, ost->st->codecpar->sample_rate}, duration,
158  &ms->ts_rescale_delta_last, ost->st->time_base);
159  pkt->pts = pkt->dts;
160 
162  } else
164  pkt->time_base = ost->st->time_base;
165 
166  if (!(mux->fc->oformat->flags & AVFMT_NOTIMESTAMPS)) {
167  if (pkt->dts != AV_NOPTS_VALUE &&
168  pkt->pts != AV_NOPTS_VALUE &&
169  pkt->dts > pkt->pts) {
170  av_log(ost, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64", replacing by guess\n",
171  pkt->dts, pkt->pts);
172  pkt->pts =
173  pkt->dts = pkt->pts + pkt->dts + ms->last_mux_dts + 1
174  - FFMIN3(pkt->pts, pkt->dts, ms->last_mux_dts + 1)
175  - FFMAX3(pkt->pts, pkt->dts, ms->last_mux_dts + 1);
176  }
177  if ((ost->type == AVMEDIA_TYPE_AUDIO || ost->type == AVMEDIA_TYPE_VIDEO || ost->type == AVMEDIA_TYPE_SUBTITLE) &&
178  pkt->dts != AV_NOPTS_VALUE &&
179  ms->last_mux_dts != AV_NOPTS_VALUE) {
180  int64_t max = ms->last_mux_dts + !(mux->fc->oformat->flags & AVFMT_TS_NONSTRICT);
181  if (pkt->dts < max) {
182  int loglevel = max - pkt->dts > 2 || ost->type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
183  if (exit_on_error)
184  loglevel = AV_LOG_ERROR;
185  av_log(ost, loglevel, "Non-monotonic DTS; "
186  "previous: %"PRId64", current: %"PRId64"; ",
187  ms->last_mux_dts, pkt->dts);
188  if (exit_on_error) {
189  return AVERROR(EINVAL);
190  }
191 
192  av_log(ost, loglevel, "changing to %"PRId64". This may result "
193  "in incorrect timestamps in the output file.\n",
194  max);
195  if (pkt->pts >= pkt->dts)
196  pkt->pts = FFMAX(pkt->pts, max);
197  pkt->dts = max;
198  }
199  }
200  }
201  ms->last_mux_dts = pkt->dts;
202 
203  if (debug_ts)
205 
206  return 0;
207 }
208 
210 {
211  MuxStream *ms = ms_from_ost(ost);
212  AVFormatContext *s = mux->fc;
213  int64_t fs;
214  uint64_t frame_num;
215  int ret;
216 
217  fs = filesize(s->pb);
218  atomic_store(&mux->last_filesize, fs);
219  if (fs >= mux->limit_filesize) {
220  ret = AVERROR_EOF;
221  goto fail;
222  }
223 
224  ret = mux_fixup_ts(mux, ms, pkt);
225  if (ret < 0)
226  goto fail;
227 
228  ms->data_size_mux += pkt->size;
229  frame_num = atomic_fetch_add(&ost->packets_written, 1);
230 
232 
233  if (ms->stats.io)
234  enc_stats_write(ost, &ms->stats, NULL, pkt, frame_num);
235 
237  if (ret < 0) {
239  "Error submitting a packet to the muxer: %s\n",
240  av_err2str(ret));
241  goto fail;
242  }
243 
244  return 0;
245 fail:
247  return ret;
248 }
249 
250 static int sync_queue_process(Muxer *mux, MuxStream *ms, AVPacket *pkt, int *stream_eof)
251 {
252  OutputFile *of = &mux->of;
253 
254  if (ms->sq_idx_mux >= 0) {
255  int ret = sq_send(mux->sq_mux, ms->sq_idx_mux, SQPKT(pkt));
256  if (ret < 0) {
257  if (ret == AVERROR_EOF)
258  *stream_eof = 1;
259 
260  return ret;
261  }
262 
263  while (1) {
264  ret = sq_receive(mux->sq_mux, -1, SQPKT(mux->sq_pkt));
265  if (ret < 0) {
266  /* n.b.: We forward EOF from the sync queue, terminating muxing.
267  * This assumes that if a muxing sync queue is present, then all
268  * the streams use it. That is true currently, but may change in
269  * the future, then this code needs to be revisited.
270  */
271  return ret == AVERROR(EAGAIN) ? 0 : ret;
272  }
273 
274  ret = write_packet(mux, of->streams[ret],
275  mux->sq_pkt);
276  if (ret < 0)
277  return ret;
278  }
279  } else if (pkt)
280  return write_packet(mux, &ms->ost, pkt);
281 
282  return 0;
283 }
284 
286 
287 /* apply the output bitstream filters */
289  OutputStream *ost, AVPacket *pkt, int *stream_eof)
290 {
291  MuxStream *ms = ms_from_ost(ost);
292  const char *err_msg;
293  int ret = 0;
294 
295  if (pkt && !ost->enc) {
296  ret = of_streamcopy(&mux->of, ost, pkt);
297  if (ret == AVERROR(EAGAIN))
298  return 0;
299  else if (ret == AVERROR_EOF) {
301  pkt = NULL;
302  ret = 0;
303  *stream_eof = 1;
304  } else if (ret < 0)
305  goto fail;
306  }
307 
308  // emit heartbeat for -fix_sub_duration;
309  // we are only interested in heartbeats on on random access points.
310  if (pkt && (pkt->flags & AV_PKT_FLAG_KEY)) {
314 
315  ret = sch_mux_sub_heartbeat(mux->sch, mux->sch_idx, ms->sch_idx,
317  if (ret < 0)
318  goto fail;
319  }
320 
321  if (ms->bsf_ctx) {
322  int bsf_eof = 0;
323 
324  if (pkt)
326 
328  if (ret < 0) {
329  err_msg = "submitting a packet for bitstream filtering";
330  goto fail;
331  }
332 
333  while (!bsf_eof) {
335  if (ret == AVERROR(EAGAIN))
336  return 0;
337  else if (ret == AVERROR_EOF)
338  bsf_eof = 1;
339  else if (ret < 0) {
341  "Error applying bitstream filters to a packet: %s",
342  av_err2str(ret));
343  if (exit_on_error)
344  return ret;
345  continue;
346  }
347 
348  if (!bsf_eof)
350 
351  ret = sync_queue_process(mux, ms, bsf_eof ? NULL : ms->bsf_pkt, stream_eof);
352  if (ret < 0)
353  goto mux_fail;
354  }
355  *stream_eof = 1;
356  } else {
357  ret = sync_queue_process(mux, ms, pkt, stream_eof);
358  if (ret < 0)
359  goto mux_fail;
360  }
361 
362  return *stream_eof ? AVERROR_EOF : 0;
363 
364 mux_fail:
365  err_msg = "submitting a packet to the muxer";
366 
367 fail:
368  if (ret != AVERROR_EOF)
369  av_log(ost, AV_LOG_ERROR, "Error %s: %s\n", err_msg, av_err2str(ret));
370  return ret;
371 }
372 
373 static void thread_set_name(Muxer *mux)
374 {
375  char name[16];
376  snprintf(name, sizeof(name), "mux%d:%s",
377  mux->of.index, mux->fc->oformat->name);
379 }
380 
382 {
383  av_packet_free(&mt->pkt);
385 
386  memset(mt, 0, sizeof(*mt));
387 }
388 
390 {
391  memset(mt, 0, sizeof(*mt));
392 
393  mt->pkt = av_packet_alloc();
394  if (!mt->pkt)
395  goto fail;
396 
398  if (!mt->fix_sub_duration_pkt)
399  goto fail;
400 
401  return 0;
402 
403 fail:
404  mux_thread_uninit(mt);
405  return AVERROR(ENOMEM);
406 }
407 
408 int muxer_thread(void *arg)
409 {
410  Muxer *mux = arg;
411  OutputFile *of = &mux->of;
412 
413  MuxThreadContext mt;
414 
415  int ret = 0;
416 
417  ret = mux_thread_init(&mt);
418  if (ret < 0)
419  goto finish;
420 
421  thread_set_name(mux);
422 
423  while (1) {
424  OutputStream *ost;
425  int stream_idx, stream_eof = 0;
426 
427  ret = sch_mux_receive(mux->sch, of->index, mt.pkt);
428  stream_idx = mt.pkt->stream_index;
429  if (stream_idx < 0) {
430  av_log(mux, AV_LOG_VERBOSE, "All streams finished\n");
431  ret = 0;
432  break;
433  }
434 
435  ost = of->streams[mux->sch_stream_idx[stream_idx]];
436  mt.pkt->stream_index = ost->index;
437  mt.pkt->flags &= ~AV_PKT_FLAG_TRUSTED;
438 
439  ret = mux_packet_filter(mux, &mt, ost, ret < 0 ? NULL : mt.pkt, &stream_eof);
440  av_packet_unref(mt.pkt);
441  if (ret == AVERROR_EOF) {
442  if (stream_eof) {
443  sch_mux_receive_finish(mux->sch, of->index, stream_idx);
444  } else {
445  av_log(mux, AV_LOG_VERBOSE, "Muxer returned EOF\n");
446  ret = 0;
447  break;
448  }
449  } else if (ret < 0) {
450  av_log(mux, AV_LOG_ERROR, "Error muxing a packet\n");
451  break;
452  }
453  }
454 
455 finish:
456  mux_thread_uninit(&mt);
457 
458  return ret;
459 }
460 
462 {
463  MuxStream *ms = ms_from_ost(ost);
465  int64_t dts = fd ? fd->dts_est : AV_NOPTS_VALUE;
466  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
467  int64_t ts_offset;
468 
469  if (of->recording_time != INT64_MAX &&
470  dts >= of->recording_time + start_time)
471  return AVERROR_EOF;
472 
473  if (!ms->streamcopy_started && !(pkt->flags & AV_PKT_FLAG_KEY) &&
475  return AVERROR(EAGAIN);
476 
477  if (!ms->streamcopy_started) {
478  if (!ms->copy_prior_start &&
479  (pkt->pts == AV_NOPTS_VALUE ?
480  dts < ms->ts_copy_start :
482  return AVERROR(EAGAIN);
483 
484  if (of->start_time != AV_NOPTS_VALUE && dts < of->start_time)
485  return AVERROR(EAGAIN);
486  }
487 
489 
490  if (pkt->pts != AV_NOPTS_VALUE)
491  pkt->pts -= ts_offset;
492 
493  if (pkt->dts == AV_NOPTS_VALUE) {
495  } else if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
496  pkt->pts = pkt->dts - ts_offset;
497  }
498 
499  pkt->dts -= ts_offset;
500 
501  ms->streamcopy_started = 1;
502 
503  return 0;
504 }
505 
506 int print_sdp(const char *filename);
507 
508 int print_sdp(const char *filename)
509 {
510  char sdp[16384];
511  int j = 0, ret;
512  AVIOContext *sdp_pb;
513  AVFormatContext **avc;
514 
515  avc = av_malloc_array(nb_output_files, sizeof(*avc));
516  if (!avc)
517  return AVERROR(ENOMEM);
518  for (int i = 0; i < nb_output_files; i++) {
519  Muxer *mux = mux_from_of(output_files[i]);
520 
521  if (!strcmp(mux->fc->oformat->name, "rtp")) {
522  avc[j] = mux->fc;
523  j++;
524  }
525  }
526 
527  if (!j) {
528  av_log(NULL, AV_LOG_ERROR, "No output streams in the SDP.\n");
529  ret = AVERROR(EINVAL);
530  goto fail;
531  }
532 
533  ret = av_sdp_create(avc, j, sdp, sizeof(sdp));
534  if (ret < 0)
535  goto fail;
536 
537  if (!filename) {
538  printf("SDP:\n%s\n", sdp);
539  fflush(stdout);
540  } else {
541  ret = avio_open2(&sdp_pb, filename, AVIO_FLAG_WRITE, &int_cb, NULL);
542  if (ret < 0) {
543  av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", filename);
544  goto fail;
545  }
546 
547  avio_print(sdp_pb, sdp);
548  avio_closep(&sdp_pb);
549  }
550 
551 fail:
552  av_freep(&avc);
553  return ret;
554 }
555 
556 int mux_check_init(void *arg)
557 {
558  Muxer *mux = arg;
559  OutputFile *of = &mux->of;
560  AVFormatContext *fc = mux->fc;
561  int ret;
562 
563  ret = avformat_write_header(fc, &mux->opts);
564  if (ret < 0) {
565  av_log(mux, AV_LOG_ERROR, "Could not write header (incorrect codec "
566  "parameters ?): %s\n", av_err2str(ret));
567  return ret;
568  }
569  //assert_avoptions(of->opts);
570  mux->header_written = 1;
571 
572  av_dump_format(fc, of->index, fc->url, 1);
574 
575  return 0;
576 }
577 
578 static int bsf_init(MuxStream *ms)
579 {
580  OutputStream *ost = &ms->ost;
581  AVBSFContext *ctx = ms->bsf_ctx;
582  int ret;
583 
584  if (!ctx)
585  return avcodec_parameters_copy(ost->st->codecpar, ost->par_in);
586 
587  ret = avcodec_parameters_copy(ctx->par_in, ost->par_in);
588  if (ret < 0)
589  return ret;
590 
591  ctx->time_base_in = ost->st->time_base;
592 
593  ret = av_bsf_init(ctx);
594  if (ret < 0) {
595  av_log(ms, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
596  ctx->filter->name);
597  return ret;
598  }
599 
600  ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
601  if (ret < 0)
602  return ret;
603  ost->st->time_base = ctx->time_base_out;
604 
605  ms->bsf_pkt = av_packet_alloc();
606  if (!ms->bsf_pkt)
607  return AVERROR(ENOMEM);
608 
609  return 0;
610 }
611 
613 {
614  Muxer *mux = mux_from_of(of);
615  MuxStream *ms = ms_from_ost(ost);
616  int ret;
617 
618  /* initialize bitstream filters for the output stream
619  * needs to be done here, because the codec id for streamcopy is not
620  * known until now */
621  ret = bsf_init(ms);
622  if (ret < 0)
623  return ret;
624 
625  if (ms->stream_duration) {
627  ost->st->time_base);
628  }
629 
630  if (ms->sch_idx >= 0)
631  return sch_mux_stream_ready(mux->sch, of->index, ms->sch_idx);
632 
633  return 0;
634 }
635 
636 static int check_written(OutputFile *of)
637 {
638  int64_t total_packets_written = 0;
639  int pass1_used = 1;
640  int ret = 0;
641 
642  for (int i = 0; i < of->nb_streams; i++) {
643  OutputStream *ost = of->streams[i];
644  uint64_t packets_written = atomic_load(&ost->packets_written);
645 
646  total_packets_written += packets_written;
647 
648  if (ost->enc_ctx &&
649  (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
651  pass1_used = 0;
652 
653  if (!packets_written &&
655  av_log(ost, AV_LOG_FATAL, "Empty output stream\n");
656  ret = err_merge(ret, AVERROR(EINVAL));
657  }
658  }
659 
660  if (!total_packets_written) {
661  int level = AV_LOG_WARNING;
662 
664  ret = err_merge(ret, AVERROR(EINVAL));
666  }
667 
668  av_log(of, level, "Output file is empty, nothing was encoded%s\n",
669  pass1_used ? "" : "(check -ss / -t / -frames parameters if used)");
670  }
671 
672  return ret;
673 }
674 
675 static void mux_final_stats(Muxer *mux)
676 {
677  OutputFile *of = &mux->of;
678  uint64_t total_packets = 0, total_size = 0;
679  uint64_t video_size = 0, audio_size = 0, subtitle_size = 0,
680  extra_size = 0, other_size = 0;
681 
682  uint8_t overhead[16] = "unknown";
683  int64_t file_size = of_filesize(of);
684 
685  av_log(of, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
686  of->index, of->url);
687 
688  for (int j = 0; j < of->nb_streams; j++) {
689  OutputStream *ost = of->streams[j];
690  MuxStream *ms = ms_from_ost(ost);
691  const AVCodecParameters *par = ost->st->codecpar;
692  const enum AVMediaType type = par->codec_type;
693  const uint64_t s = ms->data_size_mux;
694 
695  switch (type) {
696  case AVMEDIA_TYPE_VIDEO: video_size += s; break;
697  case AVMEDIA_TYPE_AUDIO: audio_size += s; break;
698  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += s; break;
699  default: other_size += s; break;
700  }
701 
702  extra_size += par->extradata_size;
703  total_size += s;
704  total_packets += atomic_load(&ost->packets_written);
705 
706  av_log(of, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
708  if (ost->enc) {
709  av_log(of, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
710  ost->frames_encoded);
711  if (type == AVMEDIA_TYPE_AUDIO)
712  av_log(of, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
713  av_log(of, AV_LOG_VERBOSE, "; ");
714  }
715 
716  av_log(of, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
717  atomic_load(&ost->packets_written), s);
718 
719  av_log(of, AV_LOG_VERBOSE, "\n");
720  }
721 
722  av_log(of, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
723  total_packets, total_size);
724 
725  if (total_size && file_size > 0 && file_size >= total_size) {
726  snprintf(overhead, sizeof(overhead), "%f%%",
727  100.0 * (file_size - total_size) / total_size);
728  }
729 
730  av_log(of, AV_LOG_INFO,
731  "video:%1.0fKiB audio:%1.0fKiB subtitle:%1.0fKiB other streams:%1.0fKiB "
732  "global headers:%1.0fKiB muxing overhead: %s\n",
733  video_size / 1024.0,
734  audio_size / 1024.0,
735  subtitle_size / 1024.0,
736  other_size / 1024.0,
737  extra_size / 1024.0,
738  overhead);
739 }
740 
742 {
743  Muxer *mux = mux_from_of(of);
744  AVFormatContext *fc = mux->fc;
745  int ret, mux_result = 0;
746 
747  if (!mux->header_written) {
748  av_log(mux, AV_LOG_ERROR,
749  "Nothing was written into output file, because "
750  "at least one of its streams received no packets.\n");
751  return AVERROR(EINVAL);
752  }
753 
755  if (ret < 0) {
756  av_log(mux, AV_LOG_ERROR, "Error writing trailer: %s\n", av_err2str(ret));
757  mux_result = err_merge(mux_result, ret);
758  }
759 
760  mux->last_filesize = filesize(fc->pb);
761 
762  if (!(fc->oformat->flags & AVFMT_NOFILE)) {
763  ret = avio_closep(&fc->pb);
764  if (ret < 0) {
765  av_log(mux, AV_LOG_ERROR, "Error closing file: %s\n", av_err2str(ret));
766  mux_result = err_merge(mux_result, ret);
767  }
768  }
769 
770  mux_final_stats(mux);
771 
772  // check whether anything was actually written
773  ret = check_written(of);
774  mux_result = err_merge(mux_result, ret);
775 
776  return mux_result;
777 }
778 
779 static void enc_stats_uninit(EncStats *es)
780 {
781  for (int i = 0; i < es->nb_components; i++)
782  av_freep(&es->components[i].str);
783  av_freep(&es->components);
784 
785  if (es->lock_initialized)
787  es->lock_initialized = 0;
788 }
789 
790 static void ost_free(OutputStream **post)
791 {
792  OutputStream *ost = *post;
793  MuxStream *ms;
794 
795  if (!ost)
796  return;
797  ms = ms_from_ost(ost);
798 
799  enc_free(&ost->enc);
800  fg_free(&ost->fg_simple);
801 
802  if (ost->logfile) {
803  if (fclose(ost->logfile))
804  av_log(ms, AV_LOG_ERROR,
805  "Error closing logfile, loss of information possible: %s\n",
806  av_err2str(AVERROR(errno)));
807  ost->logfile = NULL;
808  }
809 
810  avcodec_parameters_free(&ost->par_in);
811 
812  av_bsf_free(&ms->bsf_ctx);
813  av_packet_free(&ms->bsf_pkt);
814 
815  av_packet_free(&ms->pkt);
816  av_dict_free(&ost->encoder_opts);
817 
818  av_freep(&ost->kf.pts);
819  av_expr_free(ost->kf.pexpr);
820 
821  av_freep(&ost->logfile_prefix);
822 
823  av_freep(&ost->attachment_filename);
824 
825  if (ost->enc_ctx)
826  av_freep(&ost->enc_ctx->stats_in);
827  avcodec_free_context(&ost->enc_ctx);
828 
829  enc_stats_uninit(&ost->enc_stats_pre);
830  enc_stats_uninit(&ost->enc_stats_post);
831  enc_stats_uninit(&ms->stats);
832 
833  av_freep(post);
834 }
835 
836 static void fc_close(AVFormatContext **pfc)
837 {
838  AVFormatContext *fc = *pfc;
839 
840  if (!fc)
841  return;
842 
843  if (!(fc->oformat->flags & AVFMT_NOFILE))
844  avio_closep(&fc->pb);
846 
847  *pfc = NULL;
848 }
849 
850 void of_free(OutputFile **pof)
851 {
852  OutputFile *of = *pof;
853  Muxer *mux;
854 
855  if (!of)
856  return;
857  mux = mux_from_of(of);
858 
859  sq_free(&mux->sq_mux);
860 
861  for (int i = 0; i < of->nb_streams; i++)
862  ost_free(&of->streams[i]);
863  av_freep(&of->streams);
864 
865  av_freep(&mux->sch_stream_idx);
866 
867  av_dict_free(&mux->opts);
868 
869  av_packet_free(&mux->sq_pkt);
870 
871  fc_close(&mux->fc);
872 
873  av_freep(pof);
874 }
875 
877 {
878  Muxer *mux = mux_from_of(of);
879  return atomic_load(&mux->last_filesize);
880 }
MuxStream::ost
OutputStream ost
Definition: ffmpeg_mux.h:37
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: packet.c:427
AVMEDIA_TYPE_SUBTITLE
@ AVMEDIA_TYPE_SUBTITLE
Definition: avutil.h:204
av_gettime_relative
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
Definition: time.c:56
MuxStream::copy_initial_nonkeyframes
int copy_initial_nonkeyframes
Definition: ffmpeg_mux.h:75
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
Muxer::fc
AVFormatContext * fc
Definition: ffmpeg_mux.h:91
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
level
uint8_t level
Definition: svq3.c:205
atomic_store
#define atomic_store(object, desired)
Definition: stdatomic.h:85
err_merge
static int err_merge(int err0, int err1)
Merge two return codes - return one of the error codes if at least one of them was negative,...
Definition: ffmpeg_utils.h:41
ms_from_ost
static MuxStream * ms_from_ost(OutputStream *ost)
Definition: ffmpeg_mux.h:113
AVOutputFormat::name
const char * name
Definition: avformat.h:510
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:51
mux_from_of
static Muxer * mux_from_of(OutputFile *of)
Definition: ffmpeg_mux.c:46
MuxStream::sch_idx
int sch_idx
Definition: ffmpeg_mux.h:49
FrameData
Definition: ffmpeg.h:630
sch_mux_receive_finish
void sch_mux_receive_finish(Scheduler *sch, unsigned mux_idx, unsigned stream_idx)
Called by muxer tasks to signal that a stream will no longer accept input.
Definition: ffmpeg_sched.c:2027
Muxer::sch_stream_idx
int * sch_stream_idx
Definition: ffmpeg_mux.h:97
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:47
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:90
fg_free
void fg_free(FilterGraph **pfg)
Definition: ffmpeg_filter.c:990
FrameData::dts_est
int64_t dts_est
Definition: ffmpeg.h:633
LATENCY_PROBE_DEC_POST
@ LATENCY_PROBE_DEC_POST
Definition: ffmpeg.h:101
AVFMT_NOTIMESTAMPS
#define AVFMT_NOTIMESTAMPS
Format does not need / have any timestamps.
Definition: avformat.h:479
AV_TIME_BASE_Q
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:264
OutputFile::start_time
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:624
sync_queue.h
fc_close
static void fc_close(AVFormatContext **pfc)
Definition: ffmpeg_mux.c:836
enc_stats_uninit
static void enc_stats_uninit(EncStats *es)
Definition: ffmpeg_mux.c:779
Muxer::of
OutputFile of
Definition: ffmpeg_mux.h:86
mux_thread_init
static int mux_thread_init(MuxThreadContext *mt)
Definition: ffmpeg_mux.c:389
MuxStream::ts_rescale_delta_last
int64_t ts_rescale_delta_last
Definition: ffmpeg_mux.h:70
ffmpeg.h
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
fc
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:464
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:542
max
#define max(a, b)
Definition: cuda_runtime.h:33
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
enc_stats_write
void enc_stats_write(OutputStream *ost, EncStats *es, const AVFrame *frame, const AVPacket *pkt, uint64_t frame_num)
Definition: ffmpeg_enc.c:465
MuxStream::copy_prior_start
int copy_prior_start
Definition: ffmpeg_mux.h:76
LATENCY_PROBE_ENC_POST
@ LATENCY_PROBE_ENC_POST
Definition: ffmpeg.h:105
av_bsf_free
void av_bsf_free(AVBSFContext **pctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:52
avio_size
int64_t avio_size(AVIOContext *s)
Get the filesize.
Definition: aviobuf.c:323
av_strlcatf
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:103
ost
static AVStream * ost
Definition: vaapi_transcode.c:42
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:579
av_packet_free
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: packet.c:74
AVBSFContext
The bitstream filter state.
Definition: bsf.h:68
MuxStream::ts_copy_start
int64_t ts_copy_start
Definition: ffmpeg_mux.h:60
MuxStream::stream_duration_tb
AVRational stream_duration_tb
Definition: ffmpeg_mux.h:67
sch_mux_stream_ready
int sch_mux_stream_ready(Scheduler *sch, unsigned mux_idx, unsigned stream_idx)
Signal to the scheduler that the specified muxed stream is initialized and ready.
Definition: ffmpeg_sched.c:1157
OutputFile::nb_streams
int nb_streams
Definition: ffmpeg.h:621
Muxer
Definition: ffmpeg_mux.h:85
debug_ts
int debug_ts
Definition: ffmpeg_opt.c:69
of_filesize
int64_t of_filesize(OutputFile *of)
Definition: ffmpeg_mux.c:876
fifo.h
mux_final_stats
static void mux_final_stats(Muxer *mux)
Definition: ffmpeg_mux.c:675
finish
static void finish(void)
Definition: movenc.c:373
AVPacket::opaque_ref
AVBufferRef * opaque_ref
AVBufferRef for free use by the API user.
Definition: packet.h:560
mux_log_debug_ts
static void mux_log_debug_ts(OutputStream *ost, const AVPacket *pkt)
Definition: ffmpeg_mux.c:64
muxer_thread
int muxer_thread(void *arg)
Definition: ffmpeg_mux.c:408
fail
#define fail()
Definition: checkasm.h:179
avio_tell
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:494
val
static double val(void *priv, double ch)
Definition: aeval.c:78
sq_receive
int sq_receive(SyncQueue *sq, int stream_idx, SyncQueueFrame frame)
Read a frame from the queue.
Definition: sync_queue.c:608
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
Muxer::sq_pkt
AVPacket * sq_pkt
Definition: ffmpeg_mux.h:108
AVStream::duration
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:802
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:358
LATENCY_PROBE_FILTER_PRE
@ LATENCY_PROBE_FILTER_PRE
Definition: ffmpeg.h:102
SQPKT
#define SQPKT(pkt)
Definition: sync_queue.h:39
LATENCY_PROBE_DEMUX
@ LATENCY_PROBE_DEMUX
Definition: ffmpeg.h:99
of_streamcopy
static int of_streamcopy(OutputFile *of, OutputStream *ost, AVPacket *pkt)
Definition: ffmpeg_mux.c:461
pkt
AVPacket * pkt
Definition: movenc.c:60
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM
#define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM
Definition: ffmpeg.h:469
av_dump_format
void av_dump_format(AVFormatContext *ic, int index, const char *url, int is_output)
Print detailed information about the input or output format, such as duration, bitrate,...
Definition: dump.c:761
duration
int64_t duration
Definition: movenc.c:65
AVCodecParameters::frame_size
int frame_size
Audio only.
Definition: codec_par.h:195
EncStats::components
EncStatsComponent * components
Definition: ffmpeg.h:501
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
MuxStream::pkt
AVPacket * pkt
Definition: ffmpeg_mux.h:45
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
AVIO_FLAG_WRITE
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:618
LATENCY_PROBE_ENC_PRE
@ LATENCY_PROBE_ENC_PRE
Definition: ffmpeg.h:104
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
ctx
AVFormatContext * ctx
Definition: movenc.c:49
AVBSFContext::time_base_in
AVRational time_base_in
The timebase used for the timestamps of the input packets.
Definition: bsf.h:102
thread_set_name
static void thread_set_name(Muxer *mux)
Definition: ffmpeg_mux.c:373
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
ffmpeg_utils.h
sync_queue_process
static int sync_queue_process(Muxer *mux, MuxStream *ms, AVPacket *pkt, int *stream_eof)
Definition: ffmpeg_mux.c:250
atomic_load
#define atomic_load(object)
Definition: stdatomic.h:93
AVPacket::opaque
void * opaque
for some private data of the user
Definition: packet.h:549
av_rescale_delta
int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb)
Rescale a timestamp while preserving known durations.
Definition: mathematics.c:168
avformat_write_header
av_warn_unused_result int avformat_write_header(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and write the stream header to an output media file.
Definition: mux.c:487
Muxer::limit_filesize
int64_t limit_filesize
Definition: ffmpeg_mux.h:103
arg
const char * arg
Definition: jacosubdec.c:67
if
if(ret)
Definition: filter_design.txt:179
AVFormatContext
Format I/O context.
Definition: avformat.h:1255
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:766
av_bsf_init
int av_bsf_init(AVBSFContext *ctx)
Prepare the filter for use, after all the parameters and options have been set.
Definition: bsf.c:149
AVStream::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avformat.h:782
NULL
#define NULL
Definition: coverity.c:32
of_free
void of_free(OutputFile **pof)
Definition: ffmpeg_mux.c:850
avcodec_parameters_free
void avcodec_parameters_free(AVCodecParameters **ppar)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: codec_par.c:66
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:200
av_bsf_receive_packet
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
Retrieve a filtered packet.
Definition: bsf.c:230
avio_print
#define avio_print(s,...)
Write strings (const char *) to the context.
Definition: avio.h:537
nb_output_dumped
atomic_uint nb_output_dumped
Definition: ffmpeg.c:99
avcodec_free_context
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer.
Definition: options.c:164
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
EncStats::lock
pthread_mutex_t lock
Definition: ffmpeg.h:506
EncStats
Definition: ffmpeg.h:500
MuxStream::bsf_ctx
AVBSFContext * bsf_ctx
Definition: ffmpeg_mux.h:42
FrameData::wallclock
int64_t wallclock[LATENCY_PROBE_NB]
Definition: ffmpeg.h:647
MuxStream::streamcopy_started
int streamcopy_started
Definition: ffmpeg_mux.h:77
time.h
OutputFile::index
int index
Definition: ffmpeg.h:616
Muxer::last_filesize
atomic_int_least64_t last_filesize
Definition: ffmpeg_mux.h:104
OutputFile::streams
OutputStream ** streams
Definition: ffmpeg.h:620
MuxStream::data_size_mux
uint64_t data_size_mux
Definition: ffmpeg_mux.h:73
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:73
AVOutputFormat::flags
int flags
can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS,...
Definition: avformat.h:529
AVIOContext
Bytestream IO Context.
Definition: avio.h:160
of_write_trailer
int of_write_trailer(OutputFile *of)
Definition: ffmpeg_mux.c:741
av_ts2timestr
#define av_ts2timestr(ts, tb)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: timestamp.h:83
AVMediaType
AVMediaType
Definition: avutil.h:199
Muxer::sq_mux
SyncQueue * sq_mux
Definition: ffmpeg_mux.h:107
AVPacket::size
int size
Definition: packet.h:525
mux_thread_uninit
static void mux_thread_uninit(MuxThreadContext *mt)
Definition: ffmpeg_mux.c:381
output_files
OutputFile ** output_files
Definition: ffmpeg.c:107
av_bsf_send_packet
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
Submit a packet for filtering.
Definition: bsf.c:202
av_err2str
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:121
start_time
static int64_t start_time
Definition: ffplay.c:326
Muxer::sch
Scheduler * sch
Definition: ffmpeg_mux.h:93
sq_send
int sq_send(SyncQueue *sq, unsigned int stream_idx, SyncQueueFrame frame)
Submit a frame for the stream with index stream_idx.
Definition: sync_queue.c:343
sq_free
void sq_free(SyncQueue **psq)
Definition: sync_queue.c:699
avio.h
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
LATENCY_PROBE_NB
@ LATENCY_PROBE_NB
Definition: ffmpeg.h:106
av_get_audio_frame_duration2
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters in...
Definition: utils.c:796
OutputFile::url
const char * url
Definition: ffmpeg.h:618
AVFMT_NOFILE
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:468
printf
printf("static const uint8_t my_array[100] = {\n")
Muxer::opts
AVDictionary * opts
Definition: ffmpeg_mux.h:100
LATENCY_PROBE_DEC_PRE
@ LATENCY_PROBE_DEC_PRE
Definition: ffmpeg.h:100
diff
static av_always_inline int diff(const struct color_info *a, const struct color_info *b, const int trans_thresh)
Definition: vf_paletteuse.c:165
MuxStream::bsf_pkt
AVPacket * bsf_pkt
Definition: ffmpeg_mux.h:43
AVPacket::dts
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
Definition: packet.h:523
MuxStream
Definition: ffmpeg_mux.h:36
AV_CODEC_FLAG_PASS2
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:314
av_sdp_create
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
Generate an SDP for an RTP session.
Definition: sdp.c:912
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:530
av_packet_alloc
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: packet.c:63
av_dict_free
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
Definition: dict.c:223
Muxer::sch_idx
unsigned sch_idx
Definition: ffmpeg_mux.h:94
av_packet_rescale_ts
void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
Convert valid timing fields (timestamps / durations) in a packet from one timebase to another.
Definition: packet.c:531
MuxThreadContext::fix_sub_duration_pkt
AVPacket * fix_sub_duration_pkt
Definition: ffmpeg_mux.c:43
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
mux_check_init
int mux_check_init(void *arg)
Definition: ffmpeg_mux.c:556
filesize
static int64_t filesize(AVIOContext *pb)
Definition: ffmpeg_mux.c:51
pthread_mutex_destroy
static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
Definition: os2threads.h:112
av_write_trailer
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1295
log.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:517
packet.h
MuxStream::stats
EncStats stats
Definition: ffmpeg_mux.h:47
FFMIN3
#define FFMIN3(a, b, c)
Definition: macros.h:50
check_written
static int check_written(OutputFile *of)
Definition: ffmpeg_mux.c:636
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
exit_on_error
int exit_on_error
Definition: ffmpeg_opt.c:70
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:306
AVBSFContext::time_base_out
AVRational time_base_out
The timebase used for the timestamps of the output packets.
Definition: bsf.h:108
nb_output_files
int nb_output_files
Definition: ffmpeg.c:108
write_packet
static int write_packet(Muxer *mux, OutputStream *ost, AVPacket *pkt)
Definition: ffmpeg_mux.c:209
AVFMT_TS_NONSTRICT
#define AVFMT_TS_NONSTRICT
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition: avformat.h:491
Muxer::header_written
int header_written
Definition: ffmpeg_mux.h:105
ret
ret
Definition: filter_design.txt:187
AV_LOG_FATAL
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
Definition: log.h:174
enc_free
void enc_free(Encoder **penc)
Definition: ffmpeg_enc.c:61
abort_on_flags
int abort_on_flags
Definition: ffmpeg_opt.c:71
AVFormatContext::oformat
const struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1274
av_strlcat
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes,...
Definition: avstring.c:95
avformat.h
av_get_media_type_string
const char * av_get_media_type_string(enum AVMediaType media_type)
Return a string describing the media_type enum, NULL if media_type is unknown.
Definition: utils.c:28
AVStream::index
int index
stream index in AVFormatContext
Definition: avformat.h:749
atomic_fetch_add
#define atomic_fetch_add(object, operand)
Definition: stdatomic.h:131
avformat_free_context
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: avformat.c:141
EncStats::lock_initialized
int lock_initialized
Definition: ffmpeg.h:507
AVPacket::stream_index
int stream_index
Definition: packet.h:526
desc
const char * desc
Definition: libsvtav1.c:75
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
mem.h
MuxStream::sq_idx_mux
int sq_idx_mux
Definition: ffmpeg_mux.h:53
avio_open2
int avio_open2(AVIOContext **s, const char *filename, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options)
Create and initialize a AVIOContext for accessing the resource indicated by url.
Definition: avio.c:491
ffmpeg_mux.h
ost_free
static void ost_free(OutputStream **post)
Definition: ffmpeg_mux.c:790
AVPacket
This structure stores compressed data.
Definition: packet.h:501
avio_closep
int avio_closep(AVIOContext **s)
Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL...
Definition: avio.c:649
av_interleaved_write_frame
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file ensuring correct interleaving.
Definition: mux.c:1280
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
EncStats::nb_components
int nb_components
Definition: ffmpeg.h:502
print_sdp
int print_sdp(const char *filename)
Definition: ffmpeg_mux.c:508
FFMAX3
#define FFMAX3(a, b, c)
Definition: macros.h:48
mux_fixup_ts
static int mux_fixup_ts(Muxer *mux, MuxStream *ms, AVPacket *pkt)
Definition: ffmpeg_mux.c:138
of_stream_init
int of_stream_init(OutputFile *of, OutputStream *ost)
Definition: ffmpeg_mux.c:612
timestamp.h
OutputStream
Definition: mux.c:53
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
sch_mux_sub_heartbeat
int sch_mux_sub_heartbeat(Scheduler *sch, unsigned mux_idx, unsigned stream_idx, const AVPacket *pkt)
Definition: ffmpeg_sched.c:2045
EncStatsComponent::str
uint8_t * str
Definition: ffmpeg.h:496
av_ts2str
#define av_ts2str(ts)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: timestamp.h:54
MuxThreadContext
Definition: ffmpeg_mux.c:41
avstring.h
OutputFile::recording_time
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:623
AV_PKT_FLAG_TRUSTED
#define AV_PKT_FLAG_TRUSTED
The packet comes from a trusted source.
Definition: packet.h:593
PKT_OPAQUE_FIX_SUB_DURATION
@ PKT_OPAQUE_FIX_SUB_DURATION
Definition: ffmpeg.h:95
snprintf
#define snprintf
Definition: snprintf.h:34
EncStats::io
AVIOContext * io
Definition: ffmpeg.h:504
ABORT_ON_FLAG_EMPTY_OUTPUT
#define ABORT_ON_FLAG_EMPTY_OUTPUT
Definition: ffmpeg.h:468
MuxStream::last_mux_dts
int64_t last_mux_dts
Definition: ffmpeg_mux.h:64
avcodec_parameters_copy
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: codec_par.c:106
AVPacket::time_base
AVRational time_base
Time base of the packet's timestamps.
Definition: packet.h:568
mux_packet_filter
static int mux_packet_filter(Muxer *mux, MuxThreadContext *mt, OutputStream *ost, AVPacket *pkt, int *stream_eof)
Definition: ffmpeg_mux.c:288
MuxStream::stream_duration
int64_t stream_duration
Definition: ffmpeg_mux.h:66
MuxThreadContext::pkt
AVPacket * pkt
Definition: ffmpeg_mux.c:42
sch_mux_receive
int sch_mux_receive(Scheduler *sch, unsigned mux_idx, AVPacket *pkt)
Called by muxer tasks to obtain packets for muxing.
Definition: ffmpeg_sched.c:2014
AV_CODEC_FLAG_PASS1
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:310
OutputFile
Definition: ffmpeg.h:613
bsf_init
static int bsf_init(MuxStream *ms)
Definition: ffmpeg_mux.c:578
ff_thread_setname
static int ff_thread_setname(const char *name)
Definition: thread.h:216
LATENCY_PROBE_FILTER_POST
@ LATENCY_PROBE_FILTER_POST
Definition: ffmpeg.h:103