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 && ost->vsync_method == VSYNC_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(OutputFile *of)
374 {
375  char name[16];
376  snprintf(name, sizeof(name), "mux%d:%s", of->index, of->format->name);
378 }
379 
381 {
382  av_packet_free(&mt->pkt);
384 
385  memset(mt, 0, sizeof(*mt));
386 }
387 
389 {
390  memset(mt, 0, sizeof(*mt));
391 
392  mt->pkt = av_packet_alloc();
393  if (!mt->pkt)
394  goto fail;
395 
397  if (!mt->fix_sub_duration_pkt)
398  goto fail;
399 
400  return 0;
401 
402 fail:
403  mux_thread_uninit(mt);
404  return AVERROR(ENOMEM);
405 }
406 
407 void *muxer_thread(void *arg)
408 {
409  Muxer *mux = arg;
410  OutputFile *of = &mux->of;
411 
412  MuxThreadContext mt;
413 
414  int ret = 0;
415 
416  ret = mux_thread_init(&mt);
417  if (ret < 0)
418  goto finish;
419 
420  thread_set_name(of);
421 
422  while (1) {
423  OutputStream *ost;
424  int stream_idx, stream_eof = 0;
425 
426  ret = sch_mux_receive(mux->sch, of->index, mt.pkt);
427  stream_idx = mt.pkt->stream_index;
428  if (stream_idx < 0) {
429  av_log(mux, AV_LOG_VERBOSE, "All streams finished\n");
430  ret = 0;
431  break;
432  }
433 
434  ost = of->streams[mux->sch_stream_idx[stream_idx]];
435  mt.pkt->stream_index = ost->index;
436 
437  ret = mux_packet_filter(mux, &mt, ost, ret < 0 ? NULL : mt.pkt, &stream_eof);
438  av_packet_unref(mt.pkt);
439  if (ret == AVERROR_EOF) {
440  if (stream_eof) {
441  sch_mux_receive_finish(mux->sch, of->index, stream_idx);
442  } else {
443  av_log(mux, AV_LOG_VERBOSE, "Muxer returned EOF\n");
444  ret = 0;
445  break;
446  }
447  } else if (ret < 0) {
448  av_log(mux, AV_LOG_ERROR, "Error muxing a packet\n");
449  break;
450  }
451  }
452 
453 finish:
454  mux_thread_uninit(&mt);
455 
456  return (void*)(intptr_t)ret;
457 }
458 
460 {
461  MuxStream *ms = ms_from_ost(ost);
463  int64_t dts = fd ? fd->dts_est : AV_NOPTS_VALUE;
464  int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
465  int64_t ts_offset;
466 
467  if (of->recording_time != INT64_MAX &&
468  dts >= of->recording_time + start_time)
469  return AVERROR_EOF;
470 
471  if (!ms->streamcopy_started && !(pkt->flags & AV_PKT_FLAG_KEY) &&
473  return AVERROR(EAGAIN);
474 
475  if (!ms->streamcopy_started) {
476  if (!ms->copy_prior_start &&
477  (pkt->pts == AV_NOPTS_VALUE ?
478  dts < ms->ts_copy_start :
480  return AVERROR(EAGAIN);
481 
482  if (of->start_time != AV_NOPTS_VALUE && dts < of->start_time)
483  return AVERROR(EAGAIN);
484  }
485 
487 
488  if (pkt->pts != AV_NOPTS_VALUE)
489  pkt->pts -= ts_offset;
490 
491  if (pkt->dts == AV_NOPTS_VALUE) {
493  } else if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
494  pkt->pts = pkt->dts - ts_offset;
495  }
496 
497  pkt->dts -= ts_offset;
498 
499  ms->streamcopy_started = 1;
500 
501  return 0;
502 }
503 
504 int print_sdp(const char *filename);
505 
506 int print_sdp(const char *filename)
507 {
508  char sdp[16384];
509  int j = 0, ret;
510  AVIOContext *sdp_pb;
511  AVFormatContext **avc;
512 
513  avc = av_malloc_array(nb_output_files, sizeof(*avc));
514  if (!avc)
515  return AVERROR(ENOMEM);
516  for (int i = 0; i < nb_output_files; i++) {
517  if (!strcmp(output_files[i]->format->name, "rtp")) {
518  avc[j] = mux_from_of(output_files[i])->fc;
519  j++;
520  }
521  }
522 
523  if (!j) {
524  av_log(NULL, AV_LOG_ERROR, "No output streams in the SDP.\n");
525  ret = AVERROR(EINVAL);
526  goto fail;
527  }
528 
529  ret = av_sdp_create(avc, j, sdp, sizeof(sdp));
530  if (ret < 0)
531  goto fail;
532 
533  if (!filename) {
534  printf("SDP:\n%s\n", sdp);
535  fflush(stdout);
536  } else {
537  ret = avio_open2(&sdp_pb, filename, AVIO_FLAG_WRITE, &int_cb, NULL);
538  if (ret < 0) {
539  av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", filename);
540  goto fail;
541  }
542 
543  avio_print(sdp_pb, sdp);
544  avio_closep(&sdp_pb);
545  }
546 
547 fail:
548  av_freep(&avc);
549  return ret;
550 }
551 
552 int mux_check_init(void *arg)
553 {
554  Muxer *mux = arg;
555  OutputFile *of = &mux->of;
556  AVFormatContext *fc = mux->fc;
557  int ret;
558 
559  ret = avformat_write_header(fc, &mux->opts);
560  if (ret < 0) {
561  av_log(mux, AV_LOG_ERROR, "Could not write header (incorrect codec "
562  "parameters ?): %s\n", av_err2str(ret));
563  return ret;
564  }
565  //assert_avoptions(of->opts);
566  mux->header_written = 1;
567 
568  av_dump_format(fc, of->index, fc->url, 1);
570 
571  return 0;
572 }
573 
574 static int bsf_init(MuxStream *ms)
575 {
576  OutputStream *ost = &ms->ost;
577  AVBSFContext *ctx = ms->bsf_ctx;
578  int ret;
579 
580  if (!ctx)
581  return avcodec_parameters_copy(ost->st->codecpar, ost->par_in);
582 
583  ret = avcodec_parameters_copy(ctx->par_in, ost->par_in);
584  if (ret < 0)
585  return ret;
586 
587  ctx->time_base_in = ost->st->time_base;
588 
589  ret = av_bsf_init(ctx);
590  if (ret < 0) {
591  av_log(ms, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
592  ctx->filter->name);
593  return ret;
594  }
595 
596  ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
597  if (ret < 0)
598  return ret;
599  ost->st->time_base = ctx->time_base_out;
600 
601  ms->bsf_pkt = av_packet_alloc();
602  if (!ms->bsf_pkt)
603  return AVERROR(ENOMEM);
604 
605  return 0;
606 }
607 
609 {
610  Muxer *mux = mux_from_of(of);
611  MuxStream *ms = ms_from_ost(ost);
612  int ret;
613 
614  /* initialize bitstream filters for the output stream
615  * needs to be done here, because the codec id for streamcopy is not
616  * known until now */
617  ret = bsf_init(ms);
618  if (ret < 0)
619  return ret;
620 
621  if (ms->stream_duration) {
623  ost->st->time_base);
624  }
625 
626  if (ms->sch_idx >= 0)
627  return sch_mux_stream_ready(mux->sch, of->index, ms->sch_idx);
628 
629  return 0;
630 }
631 
632 static int check_written(OutputFile *of)
633 {
634  int64_t total_packets_written = 0;
635  int pass1_used = 1;
636  int ret = 0;
637 
638  for (int i = 0; i < of->nb_streams; i++) {
639  OutputStream *ost = of->streams[i];
640  uint64_t packets_written = atomic_load(&ost->packets_written);
641 
642  total_packets_written += packets_written;
643 
644  if (ost->enc_ctx &&
645  (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
647  pass1_used = 0;
648 
649  if (!packets_written &&
651  av_log(ost, AV_LOG_FATAL, "Empty output stream\n");
652  ret = err_merge(ret, AVERROR(EINVAL));
653  }
654  }
655 
656  if (!total_packets_written) {
657  int level = AV_LOG_WARNING;
658 
660  ret = err_merge(ret, AVERROR(EINVAL));
662  }
663 
664  av_log(of, level, "Output file is empty, nothing was encoded%s\n",
665  pass1_used ? "" : "(check -ss / -t / -frames parameters if used)");
666  }
667 
668  return ret;
669 }
670 
671 static void mux_final_stats(Muxer *mux)
672 {
673  OutputFile *of = &mux->of;
674  uint64_t total_packets = 0, total_size = 0;
675  uint64_t video_size = 0, audio_size = 0, subtitle_size = 0,
676  extra_size = 0, other_size = 0;
677 
678  uint8_t overhead[16] = "unknown";
679  int64_t file_size = of_filesize(of);
680 
681  av_log(of, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
682  of->index, of->url);
683 
684  for (int j = 0; j < of->nb_streams; j++) {
685  OutputStream *ost = of->streams[j];
686  MuxStream *ms = ms_from_ost(ost);
687  const AVCodecParameters *par = ost->st->codecpar;
688  const enum AVMediaType type = par->codec_type;
689  const uint64_t s = ms->data_size_mux;
690 
691  switch (type) {
692  case AVMEDIA_TYPE_VIDEO: video_size += s; break;
693  case AVMEDIA_TYPE_AUDIO: audio_size += s; break;
694  case AVMEDIA_TYPE_SUBTITLE: subtitle_size += s; break;
695  default: other_size += s; break;
696  }
697 
698  extra_size += par->extradata_size;
699  total_size += s;
700  total_packets += atomic_load(&ost->packets_written);
701 
702  av_log(of, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
704  if (ost->enc) {
705  av_log(of, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
706  ost->frames_encoded);
707  if (type == AVMEDIA_TYPE_AUDIO)
708  av_log(of, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
709  av_log(of, AV_LOG_VERBOSE, "; ");
710  }
711 
712  av_log(of, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
713  atomic_load(&ost->packets_written), s);
714 
715  av_log(of, AV_LOG_VERBOSE, "\n");
716  }
717 
718  av_log(of, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
719  total_packets, total_size);
720 
721  if (total_size && file_size > 0 && file_size >= total_size) {
722  snprintf(overhead, sizeof(overhead), "%f%%",
723  100.0 * (file_size - total_size) / total_size);
724  }
725 
726  av_log(of, AV_LOG_INFO,
727  "video:%1.0fKiB audio:%1.0fKiB subtitle:%1.0fKiB other streams:%1.0fKiB "
728  "global headers:%1.0fKiB muxing overhead: %s\n",
729  video_size / 1024.0,
730  audio_size / 1024.0,
731  subtitle_size / 1024.0,
732  other_size / 1024.0,
733  extra_size / 1024.0,
734  overhead);
735 }
736 
738 {
739  Muxer *mux = mux_from_of(of);
740  AVFormatContext *fc = mux->fc;
741  int ret, mux_result = 0;
742 
743  if (!mux->header_written) {
744  av_log(mux, AV_LOG_ERROR,
745  "Nothing was written into output file, because "
746  "at least one of its streams received no packets.\n");
747  return AVERROR(EINVAL);
748  }
749 
751  if (ret < 0) {
752  av_log(mux, AV_LOG_ERROR, "Error writing trailer: %s\n", av_err2str(ret));
753  mux_result = err_merge(mux_result, ret);
754  }
755 
756  mux->last_filesize = filesize(fc->pb);
757 
758  if (!(of->format->flags & AVFMT_NOFILE)) {
759  ret = avio_closep(&fc->pb);
760  if (ret < 0) {
761  av_log(mux, AV_LOG_ERROR, "Error closing file: %s\n", av_err2str(ret));
762  mux_result = err_merge(mux_result, ret);
763  }
764  }
765 
766  mux_final_stats(mux);
767 
768  // check whether anything was actually written
769  ret = check_written(of);
770  mux_result = err_merge(mux_result, ret);
771 
772  return mux_result;
773 }
774 
775 static void enc_stats_uninit(EncStats *es)
776 {
777  for (int i = 0; i < es->nb_components; i++)
778  av_freep(&es->components[i].str);
779  av_freep(&es->components);
780 
781  if (es->lock_initialized)
783  es->lock_initialized = 0;
784 }
785 
786 static void ost_free(OutputStream **post)
787 {
788  OutputStream *ost = *post;
789  MuxStream *ms;
790 
791  if (!ost)
792  return;
793  ms = ms_from_ost(ost);
794 
795  enc_free(&ost->enc);
796 
797  if (ost->logfile) {
798  if (fclose(ost->logfile))
799  av_log(ms, AV_LOG_ERROR,
800  "Error closing logfile, loss of information possible: %s\n",
801  av_err2str(AVERROR(errno)));
802  ost->logfile = NULL;
803  }
804 
805  avcodec_parameters_free(&ost->par_in);
806 
807  av_bsf_free(&ms->bsf_ctx);
808  av_packet_free(&ms->bsf_pkt);
809 
810  av_packet_free(&ms->pkt);
811  av_dict_free(&ost->encoder_opts);
812 
813  av_freep(&ost->kf.pts);
814  av_expr_free(ost->kf.pexpr);
815 
816  av_freep(&ost->logfile_prefix);
817  av_freep(&ost->apad);
818 
819  av_freep(&ost->attachment_filename);
820 
821  av_dict_free(&ost->sws_dict);
822  av_dict_free(&ost->swr_opts);
823 
824  if (ost->enc_ctx)
825  av_freep(&ost->enc_ctx->stats_in);
826  avcodec_free_context(&ost->enc_ctx);
827 
828  enc_stats_uninit(&ost->enc_stats_pre);
829  enc_stats_uninit(&ost->enc_stats_post);
830  enc_stats_uninit(&ms->stats);
831 
832  av_freep(post);
833 }
834 
835 static void fc_close(AVFormatContext **pfc)
836 {
837  AVFormatContext *fc = *pfc;
838 
839  if (!fc)
840  return;
841 
842  if (!(fc->oformat->flags & AVFMT_NOFILE))
843  avio_closep(&fc->pb);
845 
846  *pfc = NULL;
847 }
848 
849 void of_free(OutputFile **pof)
850 {
851  OutputFile *of = *pof;
852  Muxer *mux;
853 
854  if (!of)
855  return;
856  mux = mux_from_of(of);
857 
858  sq_free(&mux->sq_mux);
859 
860  for (int i = 0; i < of->nb_streams; i++)
861  ost_free(&of->streams[i]);
862  av_freep(&of->streams);
863 
864  av_freep(&mux->sch_stream_idx);
865 
866  av_dict_free(&mux->opts);
867 
868  av_packet_free(&mux->sq_pkt);
869 
870  fc_close(&mux->fc);
871 
872  av_freep(pof);
873 }
874 
876 {
877  Muxer *mux = mux_from_of(of);
878  return atomic_load(&mux->last_filesize);
879 }
MuxStream::ost
OutputStream ost
Definition: ffmpeg_mux.h:37
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.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:86
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:204
muxer_thread
void * muxer_thread(void *arg)
Definition: ffmpeg_mux.c:407
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:108
AVOutputFormat::name
const char * name
Definition: avformat.h:511
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:589
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:1861
Muxer::sch_stream_idx
int * sch_stream_idx
Definition: ffmpeg_mux.h:92
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
FrameData::dts_est
int64_t dts_est
Definition: ffmpeg.h:592
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:480
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:582
sync_queue.h
fc_close
static void fc_close(AVFormatContext **pfc)
Definition: ffmpeg_mux.c:835
enc_stats_uninit
static void enc_stats_uninit(EncStats *es)
Definition: ffmpeg_mux.c:775
Muxer::of
OutputFile of
Definition: ffmpeg_mux.h:81
mux_thread_init
static int mux_thread_init(MuxThreadContext *mt)
Definition: ffmpeg_mux.c:388
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:540
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:479
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:370
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:577
av_packet_free
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.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:1149
OutputFile::nb_streams
int nb_streams
Definition: ffmpeg.h:579
Muxer
Definition: ffmpeg_mux.h:80
debug_ts
int debug_ts
Definition: ffmpeg_opt.c:76
of_filesize
int64_t of_filesize(OutputFile *of)
Definition: ffmpeg_mux.c:875
fifo.h
mux_final_stats
static void mux_final_stats(Muxer *mux)
Definition: ffmpeg_mux.c:671
avio_open2
int avio_open2(AVIOContext **s, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options)
Create and initialize a AVIOContext for accessing the resource indicated by url.
Definition: aviobuf.c:1329
finish
static void finish(void)
Definition: movenc.c:342
AVPacket::opaque_ref
AVBufferRef * opaque_ref
AVBufferRef for free use by the API user.
Definition: packet.h:558
mux_log_debug_ts
static void mux_log_debug_ts(OutputStream *ost, const AVPacket *pkt)
Definition: ffmpeg_mux.c:64
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:513
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:103
AVStream::duration
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:900
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition: eval.c:359
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:459
pkt
AVPacket * pkt
Definition: movenc.c:59
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:418
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:785
duration
int64_t duration
Definition: movenc.c:64
AVCodecParameters::frame_size
int frame_size
Audio only.
Definition: codec_par.h:182
EncStats::components
EncStatsComponent * components
Definition: ffmpeg.h:450
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
MuxStream::pkt
AVPacket * pkt
Definition: ffmpeg_mux.h:45
format
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 format(the sample packing is implied by the sample format) and sample rate. The lists are not just lists
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
AVIO_FLAG_WRITE
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:637
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:48
AVBSFContext::time_base_in
AVRational time_base_in
The timebase used for the timestamps of the input packets.
Definition: bsf.h:102
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:547
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:472
Muxer::limit_filesize
int64_t limit_filesize
Definition: ffmpeg_mux.h:98
arg
const char * arg
Definition: jacosubdec.c:67
if
if(ret)
Definition: filter_design.txt:179
AVFormatContext
Format I/O context.
Definition: avformat.h:1363
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:864
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:880
NULL
#define NULL
Definition: coverity.c:32
of_free
void of_free(OutputFile **pof)
Definition: ffmpeg_mux.c:849
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:556
nb_output_dumped
atomic_uint nb_output_dumped
Definition: ffmpeg.c:120
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:169
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
EncStats::lock
pthread_mutex_t lock
Definition: ffmpeg.h:455
EncStats
Definition: ffmpeg.h:449
MuxStream::bsf_ctx
AVBSFContext * bsf_ctx
Definition: ffmpeg_mux.h:42
FrameData::wallclock
int64_t wallclock[LATENCY_PROBE_NB]
Definition: ffmpeg.h:606
MuxStream::streamcopy_started
int streamcopy_started
Definition: ffmpeg_mux.h:77
time.h
OutputFile::index
int index
Definition: ffmpeg.h:573
Muxer::last_filesize
atomic_int_least64_t last_filesize
Definition: ffmpeg_mux.h:99
OutputFile::streams
OutputStream ** streams
Definition: ffmpeg.h:578
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:530
AVIOContext
Bytestream IO Context.
Definition: avio.h:166
of_write_trailer
int of_write_trailer(OutputFile *of)
Definition: ffmpeg_mux.c:737
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:76
AVMediaType
AVMediaType
Definition: avutil.h:199
Muxer::sq_mux
SyncQueue * sq_mux
Definition: ffmpeg_mux.h:102
AVPacket::size
int size
Definition: packet.h:523
mux_thread_uninit
static void mux_thread_uninit(MuxThreadContext *mt)
Definition: ffmpeg_mux.c:380
output_files
OutputFile ** output_files
Definition: ffmpeg.c:128
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:329
Muxer::sch
Scheduler * sch
Definition: ffmpeg_mux.h:88
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:812
OutputFile::url
const char * url
Definition: ffmpeg.h:576
AVFMT_NOFILE
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:469
printf
printf("static const uint8_t my_array[100] = {\n")
Muxer::opts
AVDictionary * opts
Definition: ffmpeg_mux.h:95
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:164
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:521
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:911
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:528
av_packet_alloc
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.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:225
Muxer::sch_idx
unsigned sch_idx
Definition: ffmpeg_mux.h:89
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: avpacket.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:552
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
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: aviobuf.c:1368
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:1286
log.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:515
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:632
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:77
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:324
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:129
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:492
Muxer::header_written
int header_written
Definition: ffmpeg_mux.h:100
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:63
abort_on_flags
int abort_on_flags
Definition: ffmpeg_opt.c:78
AVFormatContext::oformat
const struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1382
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
VSYNC_DROP
@ VSYNC_DROP
Definition: ffmpeg.h:72
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:847
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:456
AVPacket::stream_index
int stream_index
Definition: packet.h:524
desc
const char * desc
Definition: libsvtav1.c:83
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
ffmpeg_mux.h
ost_free
static void ost_free(OutputStream **post)
Definition: ffmpeg_mux.c:786
AVPacket
This structure stores compressed data.
Definition: packet.h:499
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:1271
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
EncStats::nb_components
int nb_components
Definition: ffmpeg.h:451
print_sdp
int print_sdp(const char *filename)
Definition: ffmpeg_mux.c:506
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:608
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:1879
EncStatsComponent::str
uint8_t * str
Definition: ffmpeg.h:445
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
OutputFile::format
const AVOutputFormat * format
Definition: ffmpeg.h:575
avstring.h
OutputFile::recording_time
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:581
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:453
ABORT_ON_FLAG_EMPTY_OUTPUT
#define ABORT_ON_FLAG_EMPTY_OUTPUT
Definition: ffmpeg.h:417
thread_set_name
static void thread_set_name(OutputFile *of)
Definition: ffmpeg_mux.c:373
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:566
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:1848
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:570
bsf_init
static int bsf_init(MuxStream *ms)
Definition: ffmpeg_mux.c:574
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