FFmpeg  4.2.3
matroskaenc.c
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1 /*
2  * Matroska muxer
3  * Copyright (c) 2007 David Conrad
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 <stdint.h>
23 
24 #include "av1.h"
25 #include "avc.h"
26 #include "hevc.h"
27 #include "avformat.h"
28 #include "avio_internal.h"
29 #include "avlanguage.h"
30 #include "flacenc.h"
31 #include "internal.h"
32 #include "isom.h"
33 #include "matroska.h"
34 #include "riff.h"
35 #include "subtitles.h"
36 #include "vorbiscomment.h"
37 #include "wv.h"
38 
39 #include "libavutil/avstring.h"
41 #include "libavutil/crc.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/intfloat.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/lfg.h"
47 #include "libavutil/mathematics.h"
48 #include "libavutil/opt.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/random_seed.h"
51 #include "libavutil/rational.h"
52 #include "libavutil/samplefmt.h"
53 #include "libavutil/sha.h"
54 #include "libavutil/stereo3d.h"
55 
56 #include "libavcodec/xiph.h"
57 #include "libavcodec/mpeg4audio.h"
58 #include "libavcodec/internal.h"
59 
60 typedef struct ebml_master {
61  int64_t pos; ///< absolute offset in the containing AVIOContext where the master's elements start
62  int sizebytes; ///< how many bytes were reserved for the size
63 } ebml_master;
64 
65 typedef struct mkv_seekhead_entry {
66  uint32_t elementid;
67  uint64_t segmentpos;
69 
70 typedef struct mkv_seekhead {
71  int64_t filepos;
72  int64_t segment_offset; ///< the file offset to the beginning of the segment
73  int reserved_size; ///< -1 if appending to file
77 } mkv_seekhead;
78 
79 typedef struct mkv_cuepoint {
80  uint64_t pts;
82  int tracknum;
83  int64_t cluster_pos; ///< file offset of the cluster containing the block
84  int64_t relative_pos; ///< relative offset from the position of the cluster containing the block
85  int64_t duration; ///< duration of the block according to time base
86 } mkv_cuepoint;
87 
88 typedef struct mkv_cues {
89  int64_t segment_offset;
92 } mkv_cues;
93 
94 typedef struct mkv_track {
95  int write_dts;
96  int has_cue;
100  int64_t ts_offset;
101 } mkv_track;
102 
103 typedef struct mkv_attachment {
105  uint32_t fileuid;
107 
108 typedef struct mkv_attachments {
112 
113 #define MODE_MATROSKAv2 0x01
114 #define MODE_WEBM 0x02
115 
116 /** Maximum number of tracks allowed in a Matroska file (with track numbers in
117  * range 1 to 126 (inclusive) */
118 #define MAX_TRACKS 126
119 
120 typedef struct MatroskaMuxContext {
121  const AVClass *class;
122  int mode;
124  int64_t tags_pos;
126  int64_t info_pos;
128  int64_t tracks_pos;
130  int64_t segment_offset;
132  int64_t cluster_pos; ///< file offset of the current cluster
133  int64_t cluster_pts;
135  int64_t duration;
140 
142 
145 
148  int64_t cues_pos;
150  int is_dash;
152  int is_live;
154 
157 
158  int64_t last_track_timestamp[MAX_TRACKS];
159 
162 
165 
166 /** 2 bytes * 7 for EBML IDs, 7 1-byte EBML lengths, 6 1-byte uint,
167  * 8 byte for "matroska" doctype string */
168 #define MAX_EBML_HEADER_SIZE 35
169 
170 /** 2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit
171  * offset, 4 bytes for target EBML ID */
172 #define MAX_SEEKENTRY_SIZE 21
173 
174 /** per-cuepoint-track - 5 1-byte EBML IDs, 5 1-byte EBML sizes, 3 8-byte uint max
175  * and one 1-byte uint for the track number (this assumes MAX_TRACKS to be <= 255) */
176 #define MAX_CUETRACKPOS_SIZE 35
177 
178 /** per-cuepoint - 1 1-byte EBML ID, 1 1-byte EBML size, 8-byte uint max */
179 #define MAX_CUEPOINT_CONTENT_SIZE(num_tracks) 10 + MAX_CUETRACKPOS_SIZE * num_tracks
180 
181 /** Seek preroll value for opus */
182 #define OPUS_SEEK_PREROLL 80000000
183 
184 static int ebml_id_size(uint32_t id)
185 {
186  return (av_log2(id + 1) - 1) / 7 + 1;
187 }
188 
189 static void put_ebml_id(AVIOContext *pb, uint32_t id)
190 {
191  int i = ebml_id_size(id);
192  while (i--)
193  avio_w8(pb, (uint8_t)(id >> (i * 8)));
194 }
195 
196 /**
197  * Write an EBML size meaning "unknown size".
198  *
199  * @param bytes The number of bytes the size should occupy (maximum: 8).
200  */
201 static void put_ebml_size_unknown(AVIOContext *pb, int bytes)
202 {
203  av_assert0(bytes <= 8);
204  avio_w8(pb, 0x1ff >> bytes);
205  ffio_fill(pb, 0xff, bytes - 1);
206 }
207 
208 /**
209  * Calculate how many bytes are needed to represent a given number in EBML.
210  */
211 static int ebml_num_size(uint64_t num)
212 {
213  int bytes = 0;
214  num++;
215  do {
216  bytes++;
217  } while (num >>= 7);
218  return bytes;
219 }
220 
221 /**
222  * Write a number in EBML variable length format.
223  *
224  * @param bytes The number of bytes that need to be used to write the number.
225  * If zero, any number of bytes can be used.
226  */
227 static void put_ebml_num(AVIOContext *pb, uint64_t num, int bytes)
228 {
229  int i, needed_bytes = ebml_num_size(num);
230 
231  // sizes larger than this are currently undefined in EBML
232  av_assert0(num < (1ULL << 56) - 1);
233 
234  if (bytes == 0)
235  // don't care how many bytes are used, so use the min
236  bytes = needed_bytes;
237  // the bytes needed to write the given size would exceed the bytes
238  // that we need to use, so write unknown size. This shouldn't happen.
239  av_assert0(bytes >= needed_bytes);
240 
241  num |= 1ULL << bytes * 7;
242  for (i = bytes - 1; i >= 0; i--)
243  avio_w8(pb, (uint8_t)(num >> i * 8));
244 }
245 
246 static void put_ebml_uint(AVIOContext *pb, uint32_t elementid, uint64_t val)
247 {
248  int i, bytes = 1;
249  uint64_t tmp = val;
250  while (tmp >>= 8)
251  bytes++;
252 
253  put_ebml_id(pb, elementid);
254  put_ebml_num(pb, bytes, 0);
255  for (i = bytes - 1; i >= 0; i--)
256  avio_w8(pb, (uint8_t)(val >> i * 8));
257 }
258 
259 static void put_ebml_sint(AVIOContext *pb, uint32_t elementid, int64_t val)
260 {
261  int i, bytes = 1;
262  uint64_t tmp = 2*(val < 0 ? val^-1 : val);
263 
264  while (tmp>>=8) bytes++;
265 
266  put_ebml_id(pb, elementid);
267  put_ebml_num(pb, bytes, 0);
268  for (i = bytes - 1; i >= 0; i--)
269  avio_w8(pb, (uint8_t)(val >> i * 8));
270 }
271 
272 static void put_ebml_float(AVIOContext *pb, uint32_t elementid, double val)
273 {
274  put_ebml_id(pb, elementid);
275  put_ebml_num(pb, 8, 0);
276  avio_wb64(pb, av_double2int(val));
277 }
278 
279 static void put_ebml_binary(AVIOContext *pb, uint32_t elementid,
280  const void *buf, int size)
281 {
282  put_ebml_id(pb, elementid);
283  put_ebml_num(pb, size, 0);
284  avio_write(pb, buf, size);
285 }
286 
287 static void put_ebml_string(AVIOContext *pb, uint32_t elementid,
288  const char *str)
289 {
290  put_ebml_binary(pb, elementid, str, strlen(str));
291 }
292 
293 /**
294  * Write a void element of a given size. Useful for reserving space in
295  * the file to be written to later.
296  *
297  * @param size The number of bytes to reserve, which must be at least 2.
298  */
299 static void put_ebml_void(AVIOContext *pb, uint64_t size)
300 {
301  int64_t currentpos = avio_tell(pb);
302 
303  av_assert0(size >= 2);
304 
306  // we need to subtract the length needed to store the size from the
307  // size we need to reserve so 2 cases, we use 8 bytes to store the
308  // size if possible, 1 byte otherwise
309  if (size < 10)
310  put_ebml_num(pb, size - 2, 0);
311  else
312  put_ebml_num(pb, size - 9, 8);
313  ffio_fill(pb, 0, currentpos + size - avio_tell(pb));
314 }
315 
316 static ebml_master start_ebml_master(AVIOContext *pb, uint32_t elementid,
317  uint64_t expectedsize)
318 {
319  int bytes = expectedsize ? ebml_num_size(expectedsize) : 8;
320 
321  put_ebml_id(pb, elementid);
322  put_ebml_size_unknown(pb, bytes);
323  return (ebml_master) { avio_tell(pb), bytes };
324 }
325 
327 {
328  int64_t pos = avio_tell(pb);
329 
330  if (avio_seek(pb, master.pos - master.sizebytes, SEEK_SET) < 0)
331  return;
332  put_ebml_num(pb, pos - master.pos, master.sizebytes);
333  avio_seek(pb, pos, SEEK_SET);
334 }
335 
337 {
338  int ret;
339 
340  if ((ret = avio_open_dyn_buf(dyn_cp)) < 0)
341  return ret;
342 
343  if (mkv->write_crc)
344  put_ebml_void(*dyn_cp, 6); /* Reserve space for CRC32 so position/size calculations using avio_tell() take it into account */
345 
346  return 0;
347 }
348 
350  MatroskaMuxContext *mkv, uint32_t id)
351 {
352  uint8_t *buf, crc[4];
353  int size, skip = 0;
354 
355  put_ebml_id(pb, id);
356  size = avio_close_dyn_buf(*dyn_cp, &buf);
357  put_ebml_num(pb, size, 0);
358  if (mkv->write_crc) {
359  skip = 6; /* Skip reserved 6-byte long void element from the dynamic buffer. */
360  AV_WL32(crc, av_crc(av_crc_get_table(AV_CRC_32_IEEE_LE), UINT32_MAX, buf + skip, size - skip) ^ UINT32_MAX);
361  put_ebml_binary(pb, EBML_ID_CRC32, crc, sizeof(crc));
362  }
363  avio_write(pb, buf + skip, size - skip);
364 
365  av_free(buf);
366  *dyn_cp = NULL;
367 }
368 
369 /**
370 * Complete ebml master without destroying the buffer, allowing for later updates
371 */
373  uint32_t id, int64_t *pos)
374 {
375  uint8_t *buf;
376  int size = avio_get_dyn_buf(*dyn_cp, &buf);
377 
378  *pos = avio_tell(pb);
379 
380  put_ebml_id(pb, id);
381  put_ebml_num(pb, size, 0);
382  avio_write(pb, buf, size);
383 }
384 
385 static void put_xiph_size(AVIOContext *pb, int size)
386 {
387  ffio_fill(pb, 255, size / 255);
388  avio_w8(pb, size % 255);
389 }
390 
391 /**
392  * Free the members allocated in the mux context.
393  */
394 static void mkv_free(MatroskaMuxContext *mkv) {
395  uint8_t* buf;
396  if (mkv->cluster_bc) {
397  avio_close_dyn_buf(mkv->cluster_bc, &buf);
398  av_free(buf);
399  }
400  if (mkv->info_bc) {
401  avio_close_dyn_buf(mkv->info_bc, &buf);
402  av_free(buf);
403  }
404  if (mkv->tracks_bc) {
405  avio_close_dyn_buf(mkv->tracks_bc, &buf);
406  av_free(buf);
407  }
408  if (mkv->tags_bc) {
409  avio_close_dyn_buf(mkv->tags_bc, &buf);
410  av_free(buf);
411  }
412  if (mkv->seekhead) {
413  av_freep(&mkv->seekhead->entries);
414  av_freep(&mkv->seekhead);
415  }
416  if (mkv->cues) {
417  av_freep(&mkv->cues->entries);
418  av_freep(&mkv->cues);
419  }
420  if (mkv->attachments) {
421  av_freep(&mkv->attachments->entries);
422  av_freep(&mkv->attachments);
423  }
424  av_freep(&mkv->tracks);
425  av_freep(&mkv->stream_durations);
427 }
428 
429 /**
430  * Initialize a mkv_seekhead element to be ready to index level 1 Matroska
431  * elements. If a maximum number of elements is specified, enough space
432  * will be reserved at the current file location to write a seek head of
433  * that size.
434  *
435  * @param segment_offset The absolute offset to the position in the file
436  * where the segment begins.
437  * @param numelements The maximum number of elements that will be indexed
438  * by this seek head, 0 if unlimited.
439  */
440 static mkv_seekhead *mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset,
441  int numelements)
442 {
443  mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead));
444  if (!new_seekhead)
445  return NULL;
446 
447  new_seekhead->segment_offset = segment_offset;
448 
449  if (numelements > 0) {
450  new_seekhead->filepos = avio_tell(pb);
451  // 21 bytes max for a seek entry, 10 bytes max for the SeekHead ID
452  // and size, 6 bytes for a CRC32 element, and 3 bytes to guarantee
453  // that an EBML void element will fit afterwards
454  new_seekhead->reserved_size = numelements * MAX_SEEKENTRY_SIZE + 19;
455  new_seekhead->max_entries = numelements;
456  put_ebml_void(pb, new_seekhead->reserved_size);
457  }
458  return new_seekhead;
459 }
460 
461 static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, uint32_t elementid, uint64_t filepos)
462 {
463  mkv_seekhead_entry *entries = seekhead->entries;
464 
465  // don't store more elements than we reserved space for
466  if (seekhead->max_entries > 0 && seekhead->max_entries <= seekhead->num_entries)
467  return -1;
468 
469  entries = av_realloc_array(entries, seekhead->num_entries + 1, sizeof(mkv_seekhead_entry));
470  if (!entries)
471  return AVERROR(ENOMEM);
472  seekhead->entries = entries;
473 
474  seekhead->entries[seekhead->num_entries].elementid = elementid;
475  seekhead->entries[seekhead->num_entries++].segmentpos = filepos - seekhead->segment_offset;
476 
477  return 0;
478 }
479 
480 /**
481  * Write the seek head to the file and free it. If a maximum number of
482  * elements was specified to mkv_start_seekhead(), the seek head will
483  * be written at the location reserved for it. Otherwise, it is written
484  * at the current location in the file.
485  *
486  * @return The file offset where the seekhead was written,
487  * -1 if an error occurred.
488  */
490 {
491  AVIOContext *dyn_cp;
492  mkv_seekhead *seekhead = mkv->seekhead;
493  ebml_master seekentry;
494  int64_t currentpos;
495  int i;
496 
497  currentpos = avio_tell(pb);
498 
499  if (seekhead->reserved_size > 0) {
500  if (avio_seek(pb, seekhead->filepos, SEEK_SET) < 0) {
501  currentpos = -1;
502  goto fail;
503  }
504  }
505 
506  if (start_ebml_master_crc32(&dyn_cp, mkv) < 0) {
507  currentpos = -1;
508  goto fail;
509  }
510 
511  for (i = 0; i < seekhead->num_entries; i++) {
512  mkv_seekhead_entry *entry = &seekhead->entries[i];
513 
515 
517  put_ebml_num(dyn_cp, ebml_id_size(entry->elementid), 0);
518  put_ebml_id(dyn_cp, entry->elementid);
519 
521  end_ebml_master(dyn_cp, seekentry);
522  }
523  end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_SEEKHEAD);
524 
525  if (seekhead->reserved_size > 0) {
526  uint64_t remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb);
527  put_ebml_void(pb, remaining);
528  avio_seek(pb, currentpos, SEEK_SET);
529 
530  currentpos = seekhead->filepos;
531  }
532 fail:
533  av_freep(&mkv->seekhead->entries);
534  av_freep(&mkv->seekhead);
535 
536  return currentpos;
537 }
538 
539 static mkv_cues *mkv_start_cues(int64_t segment_offset)
540 {
541  mkv_cues *cues = av_mallocz(sizeof(mkv_cues));
542  if (!cues)
543  return NULL;
544 
545  cues->segment_offset = segment_offset;
546  return cues;
547 }
548 
549 static int mkv_add_cuepoint(mkv_cues *cues, int stream, int tracknum, int64_t ts,
550  int64_t cluster_pos, int64_t relative_pos, int64_t duration)
551 {
552  mkv_cuepoint *entries = cues->entries;
553 
554  if (ts < 0)
555  return 0;
556 
557  entries = av_realloc_array(entries, cues->num_entries + 1, sizeof(mkv_cuepoint));
558  if (!entries)
559  return AVERROR(ENOMEM);
560  cues->entries = entries;
561 
562  cues->entries[cues->num_entries].pts = ts;
563  cues->entries[cues->num_entries].stream_idx = stream;
564  cues->entries[cues->num_entries].tracknum = tracknum;
565  cues->entries[cues->num_entries].cluster_pos = cluster_pos - cues->segment_offset;
566  cues->entries[cues->num_entries].relative_pos = relative_pos;
567  cues->entries[cues->num_entries++].duration = duration;
568 
569  return 0;
570 }
571 
572 static int64_t mkv_write_cues(AVFormatContext *s, mkv_cues *cues, mkv_track *tracks, int num_tracks)
573 {
574  MatroskaMuxContext *mkv = s->priv_data;
575  AVIOContext *dyn_cp, *pb = s->pb;
576  int64_t currentpos;
577  int i, j, ret;
578 
579  currentpos = avio_tell(pb);
580  ret = start_ebml_master_crc32(&dyn_cp, mkv);
581  if (ret < 0)
582  return ret;
583 
584  for (i = 0; i < cues->num_entries; i++) {
585  ebml_master cuepoint, track_positions;
586  mkv_cuepoint *entry = &cues->entries[i];
587  uint64_t pts = entry->pts;
588  int ctp_nb = 0;
589 
590  // Calculate the number of entries, so we know the element size
591  for (j = 0; j < num_tracks; j++)
592  tracks[j].has_cue = 0;
593  for (j = 0; j < cues->num_entries - i && entry[j].pts == pts; j++) {
594  int tracknum = entry[j].stream_idx;
595  av_assert0(tracknum>=0 && tracknum<num_tracks);
596  if (tracks[tracknum].has_cue && s->streams[tracknum]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
597  continue;
598  tracks[tracknum].has_cue = 1;
599  ctp_nb ++;
600  }
601 
603  put_ebml_uint(dyn_cp, MATROSKA_ID_CUETIME, pts);
604 
605  // put all the entries from different tracks that have the exact same
606  // timestamp into the same CuePoint
607  for (j = 0; j < num_tracks; j++)
608  tracks[j].has_cue = 0;
609  for (j = 0; j < cues->num_entries - i && entry[j].pts == pts; j++) {
610  int tracknum = entry[j].stream_idx;
611  av_assert0(tracknum>=0 && tracknum<num_tracks);
612  if (tracks[tracknum].has_cue && s->streams[tracknum]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
613  continue;
614  tracks[tracknum].has_cue = 1;
616  put_ebml_uint(dyn_cp, MATROSKA_ID_CUETRACK , entry[j].tracknum );
617  put_ebml_uint(dyn_cp, MATROSKA_ID_CUECLUSTERPOSITION , entry[j].cluster_pos);
618  put_ebml_uint(dyn_cp, MATROSKA_ID_CUERELATIVEPOSITION, entry[j].relative_pos);
619  if (entry[j].duration != -1)
620  put_ebml_uint(dyn_cp, MATROSKA_ID_CUEDURATION , entry[j].duration);
621  end_ebml_master(dyn_cp, track_positions);
622  }
623  i += j - 1;
624  end_ebml_master(dyn_cp, cuepoint);
625  }
626  end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CUES);
627 
628  return currentpos;
629 }
630 
632 {
633  const uint8_t *header_start[3];
634  int header_len[3];
635  int first_header_size;
636  int j;
637 
638  if (par->codec_id == AV_CODEC_ID_VORBIS)
639  first_header_size = 30;
640  else
641  first_header_size = 42;
642 
644  first_header_size, header_start, header_len) < 0) {
645  av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n");
646  return -1;
647  }
648 
649  avio_w8(pb, 2); // number packets - 1
650  for (j = 0; j < 2; j++) {
651  put_xiph_size(pb, header_len[j]);
652  }
653  for (j = 0; j < 3; j++)
654  avio_write(pb, header_start[j], header_len[j]);
655 
656  return 0;
657 }
658 
660 {
661  if (par->extradata && par->extradata_size == 2)
662  avio_write(pb, par->extradata, 2);
663  else
664  avio_wl16(pb, 0x403); // fallback to the version mentioned in matroska specs
665  return 0;
666 }
667 
669  AVIOContext *pb, AVCodecParameters *par)
670 {
671  int write_comment = (par->channel_layout &&
672  !(par->channel_layout & ~0x3ffffULL) &&
674  int ret = ff_flac_write_header(pb, par->extradata, par->extradata_size,
675  !write_comment);
676 
677  if (ret < 0)
678  return ret;
679 
680  if (write_comment) {
681  const char *vendor = (s->flags & AVFMT_FLAG_BITEXACT) ?
682  "Lavf" : LIBAVFORMAT_IDENT;
683  AVDictionary *dict = NULL;
684  uint8_t buf[32], *data, *p;
685  int64_t len;
686 
687  snprintf(buf, sizeof(buf), "0x%"PRIx64, par->channel_layout);
688  av_dict_set(&dict, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", buf, 0);
689 
690  len = ff_vorbiscomment_length(dict, vendor, NULL, 0);
691  if (len >= ((1<<24) - 4)) {
692  av_dict_free(&dict);
693  return AVERROR(EINVAL);
694  }
695 
696  data = av_malloc(len + 4);
697  if (!data) {
698  av_dict_free(&dict);
699  return AVERROR(ENOMEM);
700  }
701 
702  data[0] = 0x84;
703  AV_WB24(data + 1, len);
704 
705  p = data + 4;
706  ff_vorbiscomment_write(&p, &dict, vendor, NULL, 0);
707 
708  avio_write(pb, data, len + 4);
709 
710  av_freep(&data);
711  av_dict_free(&dict);
712  }
713 
714  return 0;
715 }
716 
717 static int get_aac_sample_rates(AVFormatContext *s, uint8_t *extradata, int extradata_size,
718  int *sample_rate, int *output_sample_rate)
719 {
720  MPEG4AudioConfig mp4ac;
721  int ret;
722 
723  ret = avpriv_mpeg4audio_get_config(&mp4ac, extradata,
724  extradata_size * 8, 1);
725  /* Don't abort if the failure is because of missing extradata. Assume in that
726  * case a bitstream filter will provide the muxer with the extradata in the
727  * first packet.
728  * Abort however if s->pb is not seekable, as we would not be able to seek back
729  * to write the sample rate elements once the extradata shows up, anyway. */
730  if (ret < 0 && (extradata_size || !(s->pb->seekable & AVIO_SEEKABLE_NORMAL))) {
731  av_log(s, AV_LOG_ERROR,
732  "Error parsing AAC extradata, unable to determine samplerate.\n");
733  return AVERROR(EINVAL);
734  }
735 
736  if (ret < 0) {
737  /* This will only happen when this function is called while writing the
738  * header and no extradata is available. The space for this element has
739  * to be reserved for when this function is called again after the
740  * extradata shows up in the first packet, as there's no way to know if
741  * output_sample_rate will be different than sample_rate or not. */
742  *output_sample_rate = *sample_rate;
743  } else {
744  *sample_rate = mp4ac.sample_rate;
745  *output_sample_rate = mp4ac.ext_sample_rate;
746  }
747  return 0;
748 }
749 
751  AVCodecParameters *par,
752  AVIOContext *dyn_cp)
753 {
754  switch (par->codec_id) {
755  case AV_CODEC_ID_VORBIS:
756  case AV_CODEC_ID_THEORA:
757  return put_xiph_codecpriv(s, dyn_cp, par);
758  case AV_CODEC_ID_FLAC:
759  return put_flac_codecpriv(s, dyn_cp, par);
760  case AV_CODEC_ID_WAVPACK:
761  return put_wv_codecpriv(dyn_cp, par);
762  case AV_CODEC_ID_H264:
763  return ff_isom_write_avcc(dyn_cp, par->extradata,
764  par->extradata_size);
765  case AV_CODEC_ID_HEVC:
766  ff_isom_write_hvcc(dyn_cp, par->extradata,
767  par->extradata_size, 0);
768  return 0;
769  case AV_CODEC_ID_AV1:
770  if (par->extradata_size)
771  return ff_isom_write_av1c(dyn_cp, par->extradata,
772  par->extradata_size);
773  else
774  put_ebml_void(pb, 4 + 3);
775  break;
776  case AV_CODEC_ID_ALAC:
777  if (par->extradata_size < 36) {
778  av_log(s, AV_LOG_ERROR,
779  "Invalid extradata found, ALAC expects a 36-byte "
780  "QuickTime atom.");
781  return AVERROR_INVALIDDATA;
782  } else
783  avio_write(dyn_cp, par->extradata + 12,
784  par->extradata_size - 12);
785  break;
786  case AV_CODEC_ID_AAC:
787  if (par->extradata_size)
788  avio_write(dyn_cp, par->extradata, par->extradata_size);
789  else
790  put_ebml_void(pb, MAX_PCE_SIZE + 2 + 4);
791  break;
792  default:
793  if (par->codec_id == AV_CODEC_ID_PRORES &&
795  avio_wl32(dyn_cp, par->codec_tag);
796  } else if (par->extradata_size && par->codec_id != AV_CODEC_ID_TTA)
797  avio_write(dyn_cp, par->extradata, par->extradata_size);
798  }
799 
800  return 0;
801 }
802 
804  AVCodecParameters *par,
805  int native_id, int qt_id)
806 {
807  AVIOContext *dyn_cp;
808  uint8_t *codecpriv;
809  int ret, codecpriv_size;
810 
811  ret = avio_open_dyn_buf(&dyn_cp);
812  if (ret < 0)
813  return ret;
814 
815  if (native_id) {
816  ret = mkv_write_native_codecprivate(s, pb, par, dyn_cp);
817  } else if (par->codec_type == AVMEDIA_TYPE_VIDEO) {
818  if (qt_id) {
819  if (!par->codec_tag)
821  par->codec_id);
824  ) {
825  int i;
826  avio_wb32(dyn_cp, 0x5a + par->extradata_size);
827  avio_wl32(dyn_cp, par->codec_tag);
828  for(i = 0; i < 0x5a - 8; i++)
829  avio_w8(dyn_cp, 0);
830  }
831  avio_write(dyn_cp, par->extradata, par->extradata_size);
832  } else {
834  av_log(s, AV_LOG_WARNING, "codec %s is not supported by this format\n",
835  avcodec_get_name(par->codec_id));
836 
837  if (!par->codec_tag)
839  par->codec_id);
840  if (!par->codec_tag && par->codec_id != AV_CODEC_ID_RAWVIDEO) {
841  av_log(s, AV_LOG_ERROR, "No bmp codec tag found for codec %s\n",
842  avcodec_get_name(par->codec_id));
843  ret = AVERROR(EINVAL);
844  }
845 
846  ff_put_bmp_header(dyn_cp, par, 0, 0);
847  }
848  } else if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
849  unsigned int tag;
851  if (!tag) {
852  av_log(s, AV_LOG_ERROR, "No wav codec tag found for codec %s\n",
853  avcodec_get_name(par->codec_id));
854  ret = AVERROR(EINVAL);
855  }
856  if (!par->codec_tag)
857  par->codec_tag = tag;
858 
860  }
861 
862  codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv);
863  if (codecpriv_size)
865  codecpriv_size);
866  av_free(codecpriv);
867  return ret;
868 }
869 
871  AVIOContext *dyn_cp;
872  uint8_t *colorinfo_ptr;
873  int side_data_size = 0;
874  int ret, colorinfo_size;
875  const uint8_t *side_data;
876 
877  ret = avio_open_dyn_buf(&dyn_cp);
878  if (ret < 0)
879  return ret;
880 
881  if (par->color_trc != AVCOL_TRC_UNSPECIFIED &&
882  par->color_trc < AVCOL_TRC_NB) {
884  par->color_trc);
885  }
886  if (par->color_space != AVCOL_SPC_UNSPECIFIED &&
887  par->color_space < AVCOL_SPC_NB) {
889  }
891  par->color_primaries < AVCOL_PRI_NB) {
893  }
894  if (par->color_range != AVCOL_RANGE_UNSPECIFIED &&
895  par->color_range < AVCOL_RANGE_NB) {
897  }
900  int xpos, ypos;
901 
902  avcodec_enum_to_chroma_pos(&xpos, &ypos, par->chroma_location);
903  put_ebml_uint(dyn_cp, MATROSKA_ID_VIDEOCOLORCHROMASITINGHORZ, (xpos >> 7) + 1);
904  put_ebml_uint(dyn_cp, MATROSKA_ID_VIDEOCOLORCHROMASITINGVERT, (ypos >> 7) + 1);
905  }
906 
908  &side_data_size);
909  if (side_data_size) {
910  const AVContentLightMetadata *metadata =
911  (const AVContentLightMetadata*)side_data;
914  }
915 
917  &side_data_size);
918  if (side_data_size == sizeof(AVMasteringDisplayMetadata)) {
919  ebml_master meta_element = start_ebml_master(
921  const AVMasteringDisplayMetadata *metadata =
922  (const AVMasteringDisplayMetadata*)side_data;
923  if (metadata->has_primaries) {
925  av_q2d(metadata->display_primaries[0][0]));
927  av_q2d(metadata->display_primaries[0][1]));
929  av_q2d(metadata->display_primaries[1][0]));
931  av_q2d(metadata->display_primaries[1][1]));
933  av_q2d(metadata->display_primaries[2][0]));
935  av_q2d(metadata->display_primaries[2][1]));
937  av_q2d(metadata->white_point[0]));
939  av_q2d(metadata->white_point[1]));
940  }
941  if (metadata->has_luminance) {
943  av_q2d(metadata->max_luminance));
945  av_q2d(metadata->min_luminance));
946  }
947  end_ebml_master(dyn_cp, meta_element);
948  }
949 
950  colorinfo_size = avio_close_dyn_buf(dyn_cp, &colorinfo_ptr);
951  if (colorinfo_size) {
952  ebml_master colorinfo = start_ebml_master(pb, MATROSKA_ID_VIDEOCOLOR, colorinfo_size);
953  avio_write(pb, colorinfo_ptr, colorinfo_size);
954  end_ebml_master(pb, colorinfo);
955  }
956  av_free(colorinfo_ptr);
957  return 0;
958 }
959 
961  AVStream *st)
962 {
963  AVIOContext b;
964  AVIOContext *dyn_cp;
965  int side_data_size = 0;
966  int ret, projection_size;
967  uint8_t *projection_ptr;
968  uint8_t private[20];
969 
970  const AVSphericalMapping *spherical =
972  &side_data_size);
973 
974  if (!side_data_size)
975  return 0;
976 
977  ret = avio_open_dyn_buf(&dyn_cp);
978  if (ret < 0)
979  return ret;
980 
981  switch (spherical->projection) {
985  break;
987  ffio_init_context(&b, private, 20, 1, NULL, NULL, NULL, NULL);
990  avio_wb32(&b, 0); // version + flags
991  avio_wb32(&b, spherical->bound_top);
992  avio_wb32(&b, spherical->bound_bottom);
993  avio_wb32(&b, spherical->bound_left);
994  avio_wb32(&b, spherical->bound_right);
996  private, avio_tell(&b));
997  break;
999  ffio_init_context(&b, private, 12, 1, NULL, NULL, NULL, NULL);
1002  avio_wb32(&b, 0); // version + flags
1003  avio_wb32(&b, 0); // layout
1004  avio_wb32(&b, spherical->padding);
1006  private, avio_tell(&b));
1007  break;
1008  default:
1009  av_log(s, AV_LOG_WARNING, "Unknown projection type\n");
1010  goto end;
1011  }
1012 
1013  if (spherical->yaw)
1015  (double) spherical->yaw / (1 << 16));
1016  if (spherical->pitch)
1018  (double) spherical->pitch / (1 << 16));
1019  if (spherical->roll)
1021  (double) spherical->roll / (1 << 16));
1022 
1023 end:
1024  projection_size = avio_close_dyn_buf(dyn_cp, &projection_ptr);
1025  if (projection_size) {
1026  ebml_master projection = start_ebml_master(pb,
1028  projection_size);
1029  avio_write(pb, projection_ptr, projection_size);
1030  end_ebml_master(pb, projection);
1031  }
1032  av_freep(&projection_ptr);
1033 
1034  return 0;
1035 }
1036 
1038  enum AVFieldOrder field_order)
1039 {
1040  switch (field_order) {
1041  case AV_FIELD_UNKNOWN:
1042  break;
1043  case AV_FIELD_PROGRESSIVE:
1046  break;
1047  case AV_FIELD_TT:
1048  case AV_FIELD_BB:
1049  case AV_FIELD_TB:
1050  case AV_FIELD_BT:
1053  if (mode != MODE_WEBM) {
1054  switch (field_order) {
1055  case AV_FIELD_TT:
1058  break;
1059  case AV_FIELD_BB:
1062  break;
1063  case AV_FIELD_TB:
1066  break;
1067  case AV_FIELD_BT:
1070  break;
1071  }
1072  }
1073  }
1074 }
1075 
1077  AVStream *st, int mode, int *h_width, int *h_height)
1078 {
1079  int i;
1080  int ret = 0;
1083 
1084  *h_width = 1;
1085  *h_height = 1;
1086  // convert metadata into proper side data and add it to the stream
1087  if ((tag = av_dict_get(st->metadata, "stereo_mode", NULL, 0)) ||
1088  (tag = av_dict_get( s->metadata, "stereo_mode", NULL, 0))) {
1089  int stereo_mode = atoi(tag->value);
1090 
1091  for (i=0; i<MATROSKA_VIDEO_STEREOMODE_TYPE_NB; i++)
1092  if (!strcmp(tag->value, ff_matroska_video_stereo_mode[i])){
1093  stereo_mode = i;
1094  break;
1095  }
1096 
1097  if (stereo_mode < MATROSKA_VIDEO_STEREOMODE_TYPE_NB &&
1098  stereo_mode != 10 && stereo_mode != 12) {
1099  int ret = ff_mkv_stereo3d_conv(st, stereo_mode);
1100  if (ret < 0)
1101  return ret;
1102  }
1103  }
1104 
1105  // iterate to find the stereo3d side data
1106  for (i = 0; i < st->nb_side_data; i++) {
1107  AVPacketSideData sd = st->side_data[i];
1108  if (sd.type == AV_PKT_DATA_STEREO3D) {
1109  AVStereo3D *stereo = (AVStereo3D *)sd.data;
1110 
1111  switch (stereo->type) {
1112  case AV_STEREO3D_2D:
1114  break;
1116  format = (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1119  *h_width = 2;
1120  break;
1121  case AV_STEREO3D_TOPBOTTOM:
1123  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1124  format--;
1125  *h_height = 2;
1126  break;
1129  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1130  format--;
1131  break;
1132  case AV_STEREO3D_LINES:
1134  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1135  format--;
1136  *h_height = 2;
1137  break;
1138  case AV_STEREO3D_COLUMNS:
1140  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1141  format--;
1142  *h_width = 2;
1143  break;
1146  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1147  format++;
1148  break;
1149  }
1150  break;
1151  }
1152  }
1153 
1154  if (format == MATROSKA_VIDEO_STEREOMODE_TYPE_NB)
1155  return ret;
1156 
1157  // if webm, do not write unsupported modes
1158  if ((mode == MODE_WEBM &&
1161  || format >= MATROSKA_VIDEO_STEREOMODE_TYPE_NB) {
1162  av_log(s, AV_LOG_ERROR,
1163  "The specified stereo mode is not valid.\n");
1165  return AVERROR(EINVAL);
1166  }
1167 
1168  // write StereoMode if format is valid
1170 
1171  return ret;
1172 }
1173 
1175  int i, AVIOContext *pb, int default_stream_exists)
1176 {
1177  AVStream *st = s->streams[i];
1178  AVCodecParameters *par = st->codecpar;
1179  ebml_master subinfo, track;
1180  int native_id = 0;
1181  int qt_id = 0;
1183  int sample_rate = par->sample_rate;
1184  int output_sample_rate = 0;
1185  int display_width_div = 1;
1186  int display_height_div = 1;
1187  int j, ret;
1189 
1190  if (par->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
1191  mkv->have_attachments = 1;
1192  return 0;
1193  }
1194 
1195  if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
1196  if (!bit_depth && par->codec_id != AV_CODEC_ID_ADPCM_G726) {
1197  if (par->bits_per_raw_sample)
1198  bit_depth = par->bits_per_raw_sample;
1199  else
1200  bit_depth = av_get_bytes_per_sample(par->format) << 3;
1201  }
1202  if (!bit_depth)
1203  bit_depth = par->bits_per_coded_sample;
1204  }
1205 
1206  if (par->codec_id == AV_CODEC_ID_AAC) {
1207  ret = get_aac_sample_rates(s, par->extradata, par->extradata_size, &sample_rate,
1208  &output_sample_rate);
1209  if (ret < 0)
1210  return ret;
1211  }
1212 
1213  track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
1215  mkv->is_dash ? mkv->dash_track_number : i + 1);
1217  mkv->is_dash ? mkv->dash_track_number : i + 1);
1218  put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet)
1219 
1220  if ((tag = av_dict_get(st->metadata, "title", NULL, 0)))
1222  tag = av_dict_get(st->metadata, "language", NULL, 0);
1223  if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT) {
1224  put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag && tag->value ? tag->value:"und");
1225  } else if (tag && tag->value) {
1227  }
1228 
1229  // The default value for TRACKFLAGDEFAULT is 1, so add element
1230  // if we need to clear it.
1231  if (default_stream_exists && !(st->disposition & AV_DISPOSITION_DEFAULT))
1233 
1236 
1237  if (mkv->mode == MODE_WEBM) {
1238  const char *codec_id;
1239  if (par->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1240  for (j = 0; ff_webm_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
1241  if (ff_webm_codec_tags[j].id == par->codec_id) {
1242  codec_id = ff_webm_codec_tags[j].str;
1243  native_id = 1;
1244  break;
1245  }
1246  }
1247  } else if (par->codec_id == AV_CODEC_ID_WEBVTT) {
1249  codec_id = "D_WEBVTT/CAPTIONS";
1250  native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
1251  } else if (st->disposition & AV_DISPOSITION_DESCRIPTIONS) {
1252  codec_id = "D_WEBVTT/DESCRIPTIONS";
1253  native_id = MATROSKA_TRACK_TYPE_METADATA;
1254  } else if (st->disposition & AV_DISPOSITION_METADATA) {
1255  codec_id = "D_WEBVTT/METADATA";
1256  native_id = MATROSKA_TRACK_TYPE_METADATA;
1257  } else {
1258  codec_id = "D_WEBVTT/SUBTITLES";
1259  native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
1260  }
1261  }
1262 
1263  if (!native_id) {
1264  av_log(s, AV_LOG_ERROR,
1265  "Only VP8 or VP9 or AV1 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM.\n");
1266  return AVERROR(EINVAL);
1267  }
1268 
1269  put_ebml_string(pb, MATROSKA_ID_CODECID, codec_id);
1270  } else {
1271  // look for a codec ID string specific to mkv to use,
1272  // if none are found, use AVI codes
1273  if (par->codec_id != AV_CODEC_ID_RAWVIDEO || par->codec_tag) {
1274  for (j = 0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
1275  if (ff_mkv_codec_tags[j].id == par->codec_id && par->codec_id != AV_CODEC_ID_FFV1) {
1277  native_id = 1;
1278  break;
1279  }
1280  }
1281  } else {
1282  if (mkv->allow_raw_vfw) {
1283  native_id = 0;
1284  } else {
1285  av_log(s, AV_LOG_ERROR, "Raw RGB is not supported Natively in Matroska, you can use AVI or NUT or\n"
1286  "If you would like to store it anyway using VFW mode, enable allow_raw_vfw (-allow_raw_vfw 1)\n");
1287  return AVERROR(EINVAL);
1288  }
1289  }
1290  }
1291 
1292  if (par->codec_type == AVMEDIA_TYPE_AUDIO && par->initial_padding && par->codec_id == AV_CODEC_ID_OPUS) {
1293  int64_t codecdelay = av_rescale_q(par->initial_padding,
1294  (AVRational){ 1, 48000 },
1295  (AVRational){ 1, 1000000000 });
1296  if (codecdelay < 0) {
1297  av_log(s, AV_LOG_ERROR, "Initial padding is invalid\n");
1298  return AVERROR(EINVAL);
1299  }
1300 // mkv->tracks[i].ts_offset = av_rescale_q(par->initial_padding,
1301 // (AVRational){ 1, par->sample_rate },
1302 // st->time_base);
1303 
1304  put_ebml_uint(pb, MATROSKA_ID_CODECDELAY, codecdelay);
1305  }
1306  if (par->codec_id == AV_CODEC_ID_OPUS) {
1308  }
1309 
1310  switch (par->codec_type) {
1311  case AVMEDIA_TYPE_VIDEO:
1312  mkv->have_video = 1;
1314 
1315  if( st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0
1316  && av_cmp_q(av_inv_q(st->avg_frame_rate), st->time_base) > 0)
1318 
1319  if (!native_id &&
1322  par->codec_id == AV_CODEC_ID_SVQ1 ||
1323  par->codec_id == AV_CODEC_ID_SVQ3 ||
1324  par->codec_id == AV_CODEC_ID_CINEPAK))
1325  qt_id = 1;
1326 
1327  if (qt_id)
1328  put_ebml_string(pb, MATROSKA_ID_CODECID, "V_QUICKTIME");
1329  else if (!native_id) {
1330  // if there is no mkv-specific codec ID, use VFW mode
1331  put_ebml_string(pb, MATROSKA_ID_CODECID, "V_MS/VFW/FOURCC");
1332  mkv->tracks[i].write_dts = 1;
1334  }
1335 
1336  subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0);
1337 
1340 
1341  mkv_write_field_order(pb, mkv->mode, par->field_order);
1342 
1343  // check both side data and metadata for stereo information,
1344  // write the result to the bitstream if any is found
1345  ret = mkv_write_stereo_mode(s, pb, st, mkv->mode,
1346  &display_width_div,
1347  &display_height_div);
1348  if (ret < 0)
1349  return ret;
1350 
1351  if (((tag = av_dict_get(st->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||
1352  ((tag = av_dict_get( s->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||
1353  (par->format == AV_PIX_FMT_YUVA420P)) {
1355  }
1356 
1357  // write DisplayWidth and DisplayHeight, they contain the size of
1358  // a single source view and/or the display aspect ratio
1359  if (st->sample_aspect_ratio.num) {
1360  int64_t d_width = av_rescale(par->width, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
1361  if (d_width > INT_MAX) {
1362  av_log(s, AV_LOG_ERROR, "Overflow in display width\n");
1363  return AVERROR(EINVAL);
1364  }
1365  if (d_width != par->width || display_width_div != 1 || display_height_div != 1) {
1366  if (mkv->mode == MODE_WEBM || display_width_div != 1 || display_height_div != 1) {
1367  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width / display_width_div);
1368  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, par->height / display_height_div);
1369  } else {
1370  AVRational display_aspect_ratio;
1371  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1372  par->width * (int64_t)st->sample_aspect_ratio.num,
1373  par->height * (int64_t)st->sample_aspect_ratio.den,
1374  1024 * 1024);
1375  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH, display_aspect_ratio.num);
1376  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, display_aspect_ratio.den);
1378  }
1379  }
1380  } else if (display_width_div != 1 || display_height_div != 1) {
1381  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , par->width / display_width_div);
1382  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, par->height / display_height_div);
1383  } else if (mkv->mode != MODE_WEBM)
1385 
1386  if (par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1387  uint32_t color_space = av_le2ne32(par->codec_tag);
1388  put_ebml_binary(pb, MATROSKA_ID_VIDEOCOLORSPACE, &color_space, sizeof(color_space));
1389  }
1390  ret = mkv_write_video_color(pb, par, st);
1391  if (ret < 0)
1392  return ret;
1393  ret = mkv_write_video_projection(s, pb, st);
1394  if (ret < 0)
1395  return ret;
1396  end_ebml_master(pb, subinfo);
1397  break;
1398 
1399  case AVMEDIA_TYPE_AUDIO:
1401 
1402  if (!native_id)
1403  // no mkv-specific ID, use ACM mode
1404  put_ebml_string(pb, MATROSKA_ID_CODECID, "A_MS/ACM");
1405 
1406  subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
1408 
1409  mkv->tracks[i].sample_rate_offset = avio_tell(pb);
1410  put_ebml_float (pb, MATROSKA_ID_AUDIOSAMPLINGFREQ, sample_rate);
1411  if (output_sample_rate)
1412  put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
1413  if (bit_depth)
1414  put_ebml_uint(pb, MATROSKA_ID_AUDIOBITDEPTH, bit_depth);
1415  end_ebml_master(pb, subinfo);
1416  break;
1417 
1418  case AVMEDIA_TYPE_SUBTITLE:
1419  if (!native_id) {
1420  av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", par->codec_id);
1421  return AVERROR(ENOSYS);
1422  }
1423 
1424  if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT)
1425  native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
1426 
1427  put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, native_id);
1428  break;
1429  default:
1430  av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n");
1431  return AVERROR(EINVAL);
1432  }
1433 
1434  if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT) {
1435  mkv->tracks[i].codecpriv_offset = avio_tell(pb);
1436  ret = mkv_write_codecprivate(s, pb, par, native_id, qt_id);
1437  if (ret < 0)
1438  return ret;
1439  }
1440 
1441  end_ebml_master(pb, track);
1442 
1443  return 0;
1444 }
1445 
1447 {
1448  MatroskaMuxContext *mkv = s->priv_data;
1449  AVIOContext *pb = s->pb;
1450  int i, ret, default_stream_exists = 0;
1451 
1453  if (ret < 0)
1454  return ret;
1455 
1456  ret = start_ebml_master_crc32(&mkv->tracks_bc, mkv);
1457  if (ret < 0)
1458  return ret;
1459 
1460  for (i = 0; i < s->nb_streams; i++) {
1461  AVStream *st = s->streams[i];
1462  default_stream_exists |= st->disposition & AV_DISPOSITION_DEFAULT;
1463  }
1464  for (i = 0; i < s->nb_streams; i++) {
1465  ret = mkv_write_track(s, mkv, i, mkv->tracks_bc, default_stream_exists);
1466  if (ret < 0)
1467  return ret;
1468  }
1469 
1470  if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1473  else
1475 
1476  return 0;
1477 }
1478 
1480 {
1481  MatroskaMuxContext *mkv = s->priv_data;
1482  AVIOContext *dyn_cp, *pb = s->pb;
1483  ebml_master editionentry;
1484  AVRational scale = {1, 1E9};
1485  int i, ret;
1486 
1487  if (!s->nb_chapters || mkv->wrote_chapters)
1488  return 0;
1489 
1491  if (ret < 0) return ret;
1492 
1493  ret = start_ebml_master_crc32(&dyn_cp, mkv);
1494  if (ret < 0) return ret;
1495 
1496  editionentry = start_ebml_master(dyn_cp, MATROSKA_ID_EDITIONENTRY, 0);
1497  if (mkv->mode != MODE_WEBM) {
1500  }
1501  for (i = 0; i < s->nb_chapters; i++) {
1502  ebml_master chapteratom, chapterdisplay;
1503  AVChapter *c = s->chapters[i];
1504  int64_t chapterstart = av_rescale_q(c->start, c->time_base, scale);
1505  int64_t chapterend = av_rescale_q(c->end, c->time_base, scale);
1506  AVDictionaryEntry *t = NULL;
1507  if (chapterstart < 0 || chapterstart > chapterend || chapterend < 0) {
1508  av_log(s, AV_LOG_ERROR,
1509  "Invalid chapter start (%"PRId64") or end (%"PRId64").\n",
1510  chapterstart, chapterend);
1511  ffio_free_dyn_buf(&dyn_cp);
1512  return AVERROR_INVALIDDATA;
1513  }
1514 
1515  chapteratom = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERATOM, 0);
1517  put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
1518  put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMEEND, chapterend);
1519  if (mkv->mode != MODE_WEBM) {
1522  }
1523  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1524  chapterdisplay = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERDISPLAY, 0);
1526  put_ebml_string(dyn_cp, MATROSKA_ID_CHAPLANG , "und");
1527  end_ebml_master(dyn_cp, chapterdisplay);
1528  }
1529  end_ebml_master(dyn_cp, chapteratom);
1530  }
1531  end_ebml_master(dyn_cp, editionentry);
1532  end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CHAPTERS);
1533 
1534  mkv->wrote_chapters = 1;
1535  return 0;
1536 }
1537 
1539 {
1540  uint8_t *key = av_strdup(t->key);
1541  uint8_t *p = key;
1542  const uint8_t *lang = NULL;
1543  ebml_master tag;
1544 
1545  if (!key)
1546  return AVERROR(ENOMEM);
1547 
1548  if ((p = strrchr(p, '-')) &&
1549  (lang = ff_convert_lang_to(p + 1, AV_LANG_ISO639_2_BIBL)))
1550  *p = 0;
1551 
1552  p = key;
1553  while (*p) {
1554  if (*p == ' ')
1555  *p = '_';
1556  else if (*p >= 'a' && *p <= 'z')
1557  *p -= 'a' - 'A';
1558  p++;
1559  }
1560 
1563  if (lang)
1566  end_ebml_master(pb, tag);
1567 
1568  av_freep(&key);
1569  return 0;
1570 }
1571 
1572 static int mkv_write_tag_targets(AVFormatContext *s, uint32_t elementid,
1573  unsigned int uid, ebml_master *tag)
1574 {
1575  AVIOContext *pb;
1576  MatroskaMuxContext *mkv = s->priv_data;
1577  ebml_master targets;
1578  int ret;
1579 
1580  if (!mkv->tags_bc) {
1582  if (ret < 0) return ret;
1583 
1584  ret = start_ebml_master_crc32(&mkv->tags_bc, mkv);
1585  if (ret < 0)
1586  return ret;
1587  }
1588  pb = mkv->tags_bc;
1589 
1590  *tag = start_ebml_master(pb, MATROSKA_ID_TAG, 0);
1591  targets = start_ebml_master(pb, MATROSKA_ID_TAGTARGETS, 0);
1592  if (elementid)
1593  put_ebml_uint(pb, elementid, uid);
1594  end_ebml_master(pb, targets);
1595  return 0;
1596 }
1597 
1598 static int mkv_check_tag_name(const char *name, uint32_t elementid)
1599 {
1600  return av_strcasecmp(name, "title") &&
1601  av_strcasecmp(name, "stereo_mode") &&
1602  av_strcasecmp(name, "creation_time") &&
1603  av_strcasecmp(name, "encoding_tool") &&
1604  av_strcasecmp(name, "duration") &&
1605  (elementid != MATROSKA_ID_TAGTARGETS_TRACKUID ||
1606  av_strcasecmp(name, "language")) &&
1607  (elementid != MATROSKA_ID_TAGTARGETS_ATTACHUID ||
1608  (av_strcasecmp(name, "filename") &&
1609  av_strcasecmp(name, "mimetype")));
1610 }
1611 
1612 static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, uint32_t elementid,
1613  unsigned int uid)
1614 {
1615  MatroskaMuxContext *mkv = s->priv_data;
1616  ebml_master tag;
1617  int ret;
1618  AVDictionaryEntry *t = NULL;
1619 
1620  ret = mkv_write_tag_targets(s, elementid, uid, &tag);
1621  if (ret < 0)
1622  return ret;
1623 
1624  while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) {
1625  if (mkv_check_tag_name(t->key, elementid)) {
1626  ret = mkv_write_simpletag(mkv->tags_bc, t);
1627  if (ret < 0)
1628  return ret;
1629  }
1630  }
1631 
1632  end_ebml_master(mkv->tags_bc, tag);
1633  return 0;
1634 }
1635 
1636 static int mkv_check_tag(AVDictionary *m, uint32_t elementid)
1637 {
1638  AVDictionaryEntry *t = NULL;
1639 
1640  while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX)))
1641  if (mkv_check_tag_name(t->key, elementid))
1642  return 1;
1643 
1644  return 0;
1645 }
1646 
1648 {
1649  MatroskaMuxContext *mkv = s->priv_data;
1650  int i, ret;
1651 
1653 
1654  if (mkv_check_tag(s->metadata, 0)) {
1655  ret = mkv_write_tag(s, s->metadata, 0, 0);
1656  if (ret < 0) return ret;
1657  }
1658 
1659  for (i = 0; i < s->nb_streams; i++) {
1660  AVStream *st = s->streams[i];
1661 
1663  continue;
1664 
1666  continue;
1667 
1669  if (ret < 0) return ret;
1670  }
1671 
1672  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
1673  for (i = 0; i < s->nb_streams; i++) {
1674  AVIOContext *pb;
1675  AVStream *st = s->streams[i];
1676  ebml_master tag_target;
1677  ebml_master tag;
1678 
1680  continue;
1681 
1683  i + 1, &tag_target);
1684  if (ret < 0)
1685  return ret;
1686  pb = mkv->tags_bc;
1687 
1689  put_ebml_string(pb, MATROSKA_ID_TAGNAME, "DURATION");
1690  mkv->stream_duration_offsets[i] = avio_tell(pb);
1691 
1692  // Reserve space to write duration as a 20-byte string.
1693  // 2 (ebml id) + 1 (data size) + 20 (data)
1694  put_ebml_void(pb, 23);
1695  end_ebml_master(pb, tag);
1696  end_ebml_master(pb, tag_target);
1697  }
1698  }
1699 
1700  if (mkv->mode != MODE_WEBM) {
1701  for (i = 0; i < s->nb_chapters; i++) {
1702  AVChapter *ch = s->chapters[i];
1703 
1705  continue;
1706 
1708  if (ret < 0)
1709  return ret;
1710  }
1711  }
1712 
1713  if (mkv->have_attachments && mkv->mode != MODE_WEBM) {
1714  for (i = 0; i < mkv->attachments->num_entries; i++) {
1715  mkv_attachment *attachment = &mkv->attachments->entries[i];
1716  AVStream *st = s->streams[attachment->stream_idx];
1717 
1719  continue;
1720 
1721  ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_ATTACHUID, attachment->fileuid);
1722  if (ret < 0)
1723  return ret;
1724  }
1725  }
1726 
1727  if (mkv->tags_bc) {
1728  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1730  MATROSKA_ID_TAGS, &mkv->tags_pos);
1731  else
1733  }
1734  return 0;
1735 }
1736 
1738 {
1739  MatroskaMuxContext *mkv = s->priv_data;
1740  AVIOContext *dyn_cp, *pb = s->pb;
1741  AVLFG c;
1742  int i, ret;
1743 
1744  if (!mkv->have_attachments)
1745  return 0;
1746 
1747  mkv->attachments = av_mallocz(sizeof(*mkv->attachments));
1748  if (!mkv->attachments)
1749  return AVERROR(ENOMEM);
1750 
1752 
1754  if (ret < 0) return ret;
1755 
1756  ret = start_ebml_master_crc32(&dyn_cp, mkv);
1757  if (ret < 0) return ret;
1758 
1759  for (i = 0; i < s->nb_streams; i++) {
1760  AVStream *st = s->streams[i];
1761  ebml_master attached_file;
1762  mkv_attachment *attachment = mkv->attachments->entries;
1763  AVDictionaryEntry *t;
1764  const char *mimetype = NULL;
1765  uint32_t fileuid;
1766 
1768  continue;
1769 
1770  attachment = av_realloc_array(attachment, mkv->attachments->num_entries + 1, sizeof(mkv_attachment));
1771  if (!attachment)
1772  return AVERROR(ENOMEM);
1773  mkv->attachments->entries = attachment;
1774 
1775  attached_file = start_ebml_master(dyn_cp, MATROSKA_ID_ATTACHEDFILE, 0);
1776 
1777  if (t = av_dict_get(st->metadata, "title", NULL, 0))
1779  if (!(t = av_dict_get(st->metadata, "filename", NULL, 0))) {
1780  av_log(s, AV_LOG_ERROR, "Attachment stream %d has no filename tag.\n", i);
1781  return AVERROR(EINVAL);
1782  }
1784  if (t = av_dict_get(st->metadata, "mimetype", NULL, 0))
1785  mimetype = t->value;
1786  else if (st->codecpar->codec_id != AV_CODEC_ID_NONE ) {
1787  int i;
1788  for (i = 0; ff_mkv_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
1789  if (ff_mkv_mime_tags[i].id == st->codecpar->codec_id) {
1790  mimetype = ff_mkv_mime_tags[i].str;
1791  break;
1792  }
1793  for (i = 0; ff_mkv_image_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
1794  if (ff_mkv_image_mime_tags[i].id == st->codecpar->codec_id) {
1795  mimetype = ff_mkv_image_mime_tags[i].str;
1796  break;
1797  }
1798  }
1799  if (!mimetype) {
1800  av_log(s, AV_LOG_ERROR, "Attachment stream %d has no mimetype tag and "
1801  "it cannot be deduced from the codec id.\n", i);
1802  return AVERROR(EINVAL);
1803  }
1804 
1805  if (s->flags & AVFMT_FLAG_BITEXACT) {
1806  struct AVSHA *sha = av_sha_alloc();
1807  uint8_t digest[20];
1808  if (!sha)
1809  return AVERROR(ENOMEM);
1810  av_sha_init(sha, 160);
1812  av_sha_final(sha, digest);
1813  av_free(sha);
1814  fileuid = AV_RL32(digest);
1815  } else {
1816  fileuid = av_lfg_get(&c);
1817  }
1818  av_log(s, AV_LOG_VERBOSE, "Using %.8"PRIx32" for attachment %d\n",
1819  fileuid, mkv->attachments->num_entries);
1820 
1821  put_ebml_string(dyn_cp, MATROSKA_ID_FILEMIMETYPE, mimetype);
1823  put_ebml_uint(dyn_cp, MATROSKA_ID_FILEUID, fileuid);
1824  end_ebml_master(dyn_cp, attached_file);
1825 
1827  mkv->attachments->entries[mkv->attachments->num_entries++].fileuid = fileuid;
1828  }
1830 
1831  return 0;
1832 }
1833 
1835 {
1836  int i = 0;
1837  int64_t max = 0;
1838  int64_t us;
1839 
1840  AVDictionaryEntry *explicitDuration = av_dict_get(s->metadata, "DURATION", NULL, 0);
1841  if (explicitDuration && (av_parse_time(&us, explicitDuration->value, 1) == 0) && us > 0) {
1842  av_log(s, AV_LOG_DEBUG, "get_metadata_duration found duration in context metadata: %" PRId64 "\n", us);
1843  return us;
1844  }
1845 
1846  for (i = 0; i < s->nb_streams; i++) {
1847  int64_t us;
1848  AVDictionaryEntry *duration = av_dict_get(s->streams[i]->metadata, "DURATION", NULL, 0);
1849 
1850  if (duration && (av_parse_time(&us, duration->value, 1) == 0))
1851  max = FFMAX(max, us);
1852  }
1853 
1854  av_log(s, AV_LOG_DEBUG, "get_metadata_duration returned: %" PRId64 "\n", max);
1855  return max;
1856 }
1857 
1859 {
1860  MatroskaMuxContext *mkv = s->priv_data;
1861  AVIOContext *pb = s->pb;
1864  int ret, i, version = 2;
1865  int64_t creation_time;
1866 
1867  if (!strcmp(s->oformat->name, "webm")) {
1868  mkv->mode = MODE_WEBM;
1869  mkv->write_crc = 0;
1870  } else
1871  mkv->mode = MODE_MATROSKAv2;
1872 
1873  if (mkv->mode != MODE_WEBM ||
1874  av_dict_get(s->metadata, "stereo_mode", NULL, 0) ||
1875  av_dict_get(s->metadata, "alpha_mode", NULL, 0))
1876  version = 4;
1877 
1878  for (i = 0; i < s->nb_streams; i++) {
1879  if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_OPUS ||
1880  av_dict_get(s->streams[i]->metadata, "stereo_mode", NULL, 0) ||
1881  av_dict_get(s->streams[i]->metadata, "alpha_mode", NULL, 0))
1882  version = 4;
1883  }
1884 
1885  mkv->tracks = av_mallocz_array(s->nb_streams, sizeof(*mkv->tracks));
1886  if (!mkv->tracks) {
1887  ret = AVERROR(ENOMEM);
1888  goto fail;
1889  }
1896  put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , version);
1898  end_ebml_master(pb, ebml_header);
1899 
1901  mkv->segment_offset = avio_tell(pb);
1902 
1903  // we write a seek head at the beginning to point to all other level
1904  // one elements, which aren't more than 10 elements as we write only one
1905  // of every other currently defined level 1 element
1906  mkv->seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 10);
1907  if (!mkv->seekhead) {
1908  ret = AVERROR(ENOMEM);
1909  goto fail;
1910  }
1911 
1913  if (ret < 0) goto fail;
1914 
1915  ret = start_ebml_master_crc32(&mkv->info_bc, mkv);
1916  if (ret < 0)
1917  return ret;
1918  pb = mkv->info_bc;
1919 
1921  if ((tag = av_dict_get(s->metadata, "title", NULL, 0)))
1923  if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
1925  if ((tag = av_dict_get(s->metadata, "encoding_tool", NULL, 0)))
1927  else
1929 
1930  if (mkv->mode != MODE_WEBM) {
1931  uint32_t segment_uid[4];
1932  AVLFG lfg;
1933 
1935 
1936  for (i = 0; i < 4; i++)
1937  segment_uid[i] = av_lfg_get(&lfg);
1938 
1939  put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16);
1940  }
1941  } else {
1942  const char *ident = "Lavf";
1945  }
1946 
1947  if (ff_parse_creation_time_metadata(s, &creation_time, 0) > 0) {
1948  // Adjust time so it's relative to 2001-01-01 and convert to nanoseconds.
1949  int64_t date_utc = (creation_time - 978307200000000LL) * 1000;
1950  uint8_t date_utc_buf[8];
1951  AV_WB64(date_utc_buf, date_utc);
1952  put_ebml_binary(pb, MATROSKA_ID_DATEUTC, date_utc_buf, 8);
1953  }
1954 
1955  // reserve space for the duration
1956  mkv->duration = 0;
1957  mkv->duration_offset = avio_tell(pb);
1958  if (!mkv->is_live) {
1959  int64_t metadata_duration = get_metadata_duration(s);
1960 
1961  if (s->duration > 0) {
1962  int64_t scaledDuration = av_rescale(s->duration, 1000, AV_TIME_BASE);
1963  put_ebml_float(pb, MATROSKA_ID_DURATION, scaledDuration);
1964  av_log(s, AV_LOG_DEBUG, "Write early duration from recording time = %" PRIu64 "\n", scaledDuration);
1965  } else if (metadata_duration > 0) {
1966  int64_t scaledDuration = av_rescale(metadata_duration, 1000, AV_TIME_BASE);
1967  put_ebml_float(pb, MATROSKA_ID_DURATION, scaledDuration);
1968  av_log(s, AV_LOG_DEBUG, "Write early duration from metadata = %" PRIu64 "\n", scaledDuration);
1969  } else {
1970  put_ebml_void(pb, 11); // assumes double-precision float to be written
1971  }
1972  }
1973  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1975  MATROSKA_ID_INFO, &mkv->info_pos);
1976  else
1978  pb = s->pb;
1979 
1980  // initialize stream_duration fields
1981  mkv->stream_durations = av_mallocz(s->nb_streams * sizeof(int64_t));
1982  mkv->stream_duration_offsets = av_mallocz(s->nb_streams * sizeof(int64_t));
1983  if (!mkv->stream_durations || !mkv->stream_duration_offsets) {
1984  ret = AVERROR(ENOMEM);
1985  goto fail;
1986  }
1987 
1988  ret = mkv_write_tracks(s);
1989  if (ret < 0)
1990  goto fail;
1991 
1992  for (i = 0; i < s->nb_chapters; i++)
1993  mkv->chapter_id_offset = FFMAX(mkv->chapter_id_offset, 1LL - s->chapters[i]->id);
1994 
1995  ret = mkv_write_chapters(s);
1996  if (ret < 0)
1997  goto fail;
1998 
1999  if (mkv->mode != MODE_WEBM) {
2000  ret = mkv_write_attachments(s);
2001  if (ret < 0)
2002  goto fail;
2003  }
2004 
2005  ret = mkv_write_tags(s);
2006  if (ret < 0)
2007  goto fail;
2008 
2009  if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
2010  mkv_write_seekhead(pb, mkv);
2011 
2012  mkv->cues = mkv_start_cues(mkv->segment_offset);
2013  if (!mkv->cues) {
2014  ret = AVERROR(ENOMEM);
2015  goto fail;
2016  }
2017 
2018  if (s->metadata_header_padding > 0) {
2019  if (s->metadata_header_padding == 1)
2022  }
2023 
2024  if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && mkv->reserve_cues_space) {
2025  mkv->cues_pos = avio_tell(pb);
2026  if (mkv->reserve_cues_space == 1)
2027  mkv->reserve_cues_space++;
2029  }
2030 
2032  mkv->cur_audio_pkt.size = 0;
2033  mkv->cluster_pos = -1;
2034 
2035  avio_flush(pb);
2036 
2037  // start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
2038  // after 4k and on a keyframe
2039  if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
2040  if (mkv->cluster_time_limit < 0)
2041  mkv->cluster_time_limit = 5000;
2042  if (mkv->cluster_size_limit < 0)
2043  mkv->cluster_size_limit = 5 * 1024 * 1024;
2044  } else {
2045  if (mkv->cluster_time_limit < 0)
2046  mkv->cluster_time_limit = 1000;
2047  if (mkv->cluster_size_limit < 0)
2048  mkv->cluster_size_limit = 32 * 1024;
2049  }
2050 
2051  return 0;
2052 fail:
2053  mkv_free(mkv);
2054  return ret;
2055 }
2056 
2057 static int mkv_blockgroup_size(int pkt_size)
2058 {
2059  int size = pkt_size + 4;
2060  size += ebml_num_size(size);
2061  size += 2; // EBML ID for block and block duration
2062  size += 9; // max size of block duration incl. length field
2063  return size;
2064 }
2065 
2066 static int mkv_strip_wavpack(const uint8_t *src, uint8_t **pdst, int *size)
2067 {
2068  uint8_t *dst;
2069  int srclen = *size;
2070  int offset = 0;
2071  int ret;
2072 
2073  dst = av_malloc(srclen);
2074  if (!dst)
2075  return AVERROR(ENOMEM);
2076 
2077  while (srclen >= WV_HEADER_SIZE) {
2078  WvHeader header;
2079 
2080  ret = ff_wv_parse_header(&header, src);
2081  if (ret < 0)
2082  goto fail;
2083  src += WV_HEADER_SIZE;
2084  srclen -= WV_HEADER_SIZE;
2085 
2086  if (srclen < header.blocksize) {
2087  ret = AVERROR_INVALIDDATA;
2088  goto fail;
2089  }
2090 
2091  if (header.initial) {
2092  AV_WL32(dst + offset, header.samples);
2093  offset += 4;
2094  }
2095  AV_WL32(dst + offset, header.flags);
2096  AV_WL32(dst + offset + 4, header.crc);
2097  offset += 8;
2098 
2099  if (!(header.initial && header.final)) {
2100  AV_WL32(dst + offset, header.blocksize);
2101  offset += 4;
2102  }
2103 
2104  memcpy(dst + offset, src, header.blocksize);
2105  src += header.blocksize;
2106  srclen -= header.blocksize;
2107  offset += header.blocksize;
2108  }
2109 
2110  *pdst = dst;
2111  *size = offset;
2112 
2113  return 0;
2114 fail:
2115  av_freep(&dst);
2116  return ret;
2117 }
2118 
2120  uint32_t blockid, AVPacket *pkt, int keyframe)
2121 {
2122  MatroskaMuxContext *mkv = s->priv_data;
2124  uint8_t *data = NULL, *side_data = NULL;
2125  int err = 0, offset = 0, size = pkt->size, side_data_size = 0;
2126  int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
2127  uint64_t additional_id = 0;
2128  int64_t discard_padding = 0;
2129  uint8_t track_number = (mkv->is_dash ? mkv->dash_track_number : (pkt->stream_index + 1));
2130  ebml_master block_group, block_additions, block_more;
2131 
2132  ts += mkv->tracks[pkt->stream_index].ts_offset;
2133 
2134  /* The following string is identical to the one in mkv_write_vtt_blocks
2135  * so that only one copy needs to exist in binaries. */
2136  av_log(s, AV_LOG_DEBUG,
2137  "Writing block of size %d with pts %" PRId64 ", dts %" PRId64 ", "
2138  "duration %" PRId64 " at relative offset %" PRId64 " in cluster "
2139  "at offset %" PRId64 ". TrackNumber %d, keyframe %d\n",
2140  pkt->size, pkt->pts, pkt->dts, pkt->duration, avio_tell(pb),
2141  mkv->cluster_pos, track_number, keyframe != 0);
2142  if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 0 &&
2143  (AV_RB24(par->extradata) == 1 || AV_RB32(par->extradata) == 1))
2144  err = ff_avc_parse_nal_units_buf(pkt->data, &data, &size);
2145  else if (par->codec_id == AV_CODEC_ID_HEVC && par->extradata_size > 6 &&
2146  (AV_RB24(par->extradata) == 1 || AV_RB32(par->extradata) == 1))
2147  /* extradata is Annex B, assume the bitstream is too and convert it */
2148  err = ff_hevc_annexb2mp4_buf(pkt->data, &data, &size, 0, NULL);
2149  else if (par->codec_id == AV_CODEC_ID_AV1)
2150  err = ff_av1_filter_obus_buf(pkt->data, &data, &size);
2151  else if (par->codec_id == AV_CODEC_ID_WAVPACK) {
2152  err = mkv_strip_wavpack(pkt->data, &data, &size);
2153  } else
2154  data = pkt->data;
2155 
2156  if (err < 0) {
2157  av_log(s, AV_LOG_ERROR, "Error when reformatting data of "
2158  "a packet from stream %d.\n", pkt->stream_index);
2159  return err;
2160  }
2161 
2162  if (par->codec_id == AV_CODEC_ID_PRORES && size >= 8) {
2163  /* Matroska specification requires to remove the first QuickTime atom
2164  */
2165  size -= 8;
2166  offset = 8;
2167  }
2168 
2169  side_data = av_packet_get_side_data(pkt,
2171  &side_data_size);
2172 
2173  if (side_data && side_data_size >= 10) {
2174  discard_padding = av_rescale_q(AV_RL32(side_data + 4),
2175  (AVRational){1, par->sample_rate},
2176  (AVRational){1, 1000000000});
2177  }
2178 
2179  side_data = av_packet_get_side_data(pkt,
2181  &side_data_size);
2182  if (side_data) {
2183  if (side_data_size < 8) {
2184  side_data_size = 0;
2185  } else {
2186  additional_id = AV_RB64(side_data);
2187  side_data += 8;
2188  side_data_size -= 8;
2189  }
2190  }
2191 
2192  if ((side_data_size && additional_id == 1) || discard_padding) {
2193  block_group = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, 0);
2194  blockid = MATROSKA_ID_BLOCK;
2195  }
2196 
2197  put_ebml_id(pb, blockid);
2198  put_ebml_num(pb, size + 4, 0);
2199  // this assumes stream_index is less than 126
2200  avio_w8(pb, 0x80 | track_number);
2201  avio_wb16(pb, ts - mkv->cluster_pts);
2202  avio_w8(pb, (blockid == MATROSKA_ID_SIMPLEBLOCK && keyframe) ? (1 << 7) : 0);
2203  avio_write(pb, data + offset, size);
2204  if (data != pkt->data)
2205  av_free(data);
2206 
2207  if (blockid == MATROSKA_ID_BLOCK && !keyframe) {
2209  mkv->last_track_timestamp[track_number - 1]);
2210  }
2211  mkv->last_track_timestamp[track_number - 1] = ts - mkv->cluster_pts;
2212 
2213  if (discard_padding) {
2214  put_ebml_sint(pb, MATROSKA_ID_DISCARDPADDING, discard_padding);
2215  }
2216 
2217  if (side_data_size && additional_id == 1) {
2218  block_additions = start_ebml_master(pb, MATROSKA_ID_BLOCKADDITIONS, 0);
2219  block_more = start_ebml_master(pb, MATROSKA_ID_BLOCKMORE, 0);
2222  put_ebml_num(pb, side_data_size, 0);
2223  avio_write(pb, side_data, side_data_size);
2224  end_ebml_master(pb, block_more);
2225  end_ebml_master(pb, block_additions);
2226  }
2227  if ((side_data_size && additional_id == 1) || discard_padding) {
2228  end_ebml_master(pb, block_group);
2229  }
2230 
2231  return 0;
2232 }
2233 
2235 {
2236  MatroskaMuxContext *mkv = s->priv_data;
2237  ebml_master blockgroup;
2238  int id_size, settings_size, size;
2239  uint8_t *id, *settings;
2240  int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
2241  const int flags = 0;
2242 
2243  id_size = 0;
2245  &id_size);
2246 
2247  settings_size = 0;
2249  &settings_size);
2250 
2251  size = id_size + 1 + settings_size + 1 + pkt->size;
2252 
2253  /* The following string is identical to the one in mkv_write_block so that
2254  * only one copy needs to exist in binaries. */
2255  av_log(s, AV_LOG_DEBUG,
2256  "Writing block of size %d with pts %" PRId64 ", dts %" PRId64 ", "
2257  "duration %" PRId64 " at relative offset %" PRId64 " in cluster "
2258  "at offset %" PRId64 ". TrackNumber %d, keyframe %d\n",
2259  size, pkt->pts, pkt->dts, pkt->duration, avio_tell(pb),
2260  mkv->cluster_pos, pkt->stream_index + 1, 1);
2261 
2263 
2265  put_ebml_num(pb, size + 4, 0);
2266  avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
2267  avio_wb16(pb, ts - mkv->cluster_pts);
2268  avio_w8(pb, flags);
2269  avio_printf(pb, "%.*s\n%.*s\n%.*s", id_size, id, settings_size, settings, pkt->size, pkt->data);
2270 
2272  end_ebml_master(pb, blockgroup);
2273 
2274  return pkt->duration;
2275 }
2276 
2278 {
2279  MatroskaMuxContext *mkv = s->priv_data;
2280 
2282  mkv->cluster_pos = -1;
2283  av_log(s, AV_LOG_DEBUG,
2284  "Starting new cluster at offset %" PRIu64 " bytes, "
2285  "pts %" PRIu64 ", dts %" PRIu64 "\n",
2286  avio_tell(s->pb), pkt->pts, pkt->dts);
2287  avio_flush(s->pb);
2288 }
2289 
2291 {
2292  MatroskaMuxContext *mkv = s->priv_data;
2293  mkv_track *track = &mkv->tracks[pkt->stream_index];
2295  uint8_t *side_data;
2296  int side_data_size = 0, ret;
2297 
2299  &side_data_size);
2300 
2301  switch (par->codec_id) {
2302  case AV_CODEC_ID_AAC:
2303  if (side_data_size && mkv->tracks_bc) {
2304  int filler, output_sample_rate = 0;
2305  int64_t curpos;
2306  ret = get_aac_sample_rates(s, side_data, side_data_size, &track->sample_rate,
2307  &output_sample_rate);
2308  if (ret < 0)
2309  return ret;
2310  if (!output_sample_rate)
2311  output_sample_rate = track->sample_rate; // Space is already reserved, so it's this or a void element.
2312  av_freep(&par->extradata);
2313  ret = ff_alloc_extradata(par, side_data_size);
2314  if (ret < 0)
2315  return ret;
2316  memcpy(par->extradata, side_data, side_data_size);
2317  curpos = avio_tell(mkv->tracks_bc);
2318  avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
2319  mkv_write_codecprivate(s, mkv->tracks_bc, par, 1, 0);
2320  filler = MAX_PCE_SIZE + 2 + 4 - (avio_tell(mkv->tracks_bc) - track->codecpriv_offset);
2321  if (filler)
2322  put_ebml_void(mkv->tracks_bc, filler);
2323  avio_seek(mkv->tracks_bc, track->sample_rate_offset, SEEK_SET);
2325  put_ebml_float(mkv->tracks_bc, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
2326  avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
2327  } else if (!par->extradata_size && !track->sample_rate) {
2328  // No extradata (codecpar or packet side data).
2329  av_log(s, AV_LOG_ERROR, "Error parsing AAC extradata, unable to determine samplerate.\n");
2330  return AVERROR(EINVAL);
2331  }
2332  break;
2333  case AV_CODEC_ID_FLAC:
2334  if (side_data_size && mkv->tracks_bc) {
2335  AVCodecParameters *codecpriv_par;
2336  int64_t curpos;
2337  if (side_data_size != par->extradata_size) {
2338  av_log(s, AV_LOG_ERROR, "Invalid FLAC STREAMINFO metadata for output stream %d\n",
2339  pkt->stream_index);
2340  return AVERROR(EINVAL);
2341  }
2342  codecpriv_par = avcodec_parameters_alloc();
2343  if (!codecpriv_par)
2344  return AVERROR(ENOMEM);
2345  ret = avcodec_parameters_copy(codecpriv_par, par);
2346  if (ret < 0) {
2347  avcodec_parameters_free(&codecpriv_par);
2348  return ret;
2349  }
2350  memcpy(codecpriv_par->extradata, side_data, side_data_size);
2351  curpos = avio_tell(mkv->tracks_bc);
2352  avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
2353  mkv_write_codecprivate(s, mkv->tracks_bc, codecpriv_par, 1, 0);
2354  avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
2355  avcodec_parameters_free(&codecpriv_par);
2356  }
2357  break;
2358  // FIXME: Remove the following once libaom starts propagating extradata during init()
2359  // See https://bugs.chromium.org/p/aomedia/issues/detail?id=2012
2360  case AV_CODEC_ID_AV1:
2361  if (side_data_size && mkv->tracks_bc && !par->extradata_size) {
2362  AVIOContext *dyn_cp;
2363  uint8_t *codecpriv;
2364  int codecpriv_size;
2365  int64_t curpos;
2366  ret = avio_open_dyn_buf(&dyn_cp);
2367  if (ret < 0)
2368  return ret;
2369  ff_isom_write_av1c(dyn_cp, side_data, side_data_size);
2370  codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv);
2371  if (!codecpriv_size) {
2372  av_free(codecpriv);
2373  return AVERROR_INVALIDDATA;
2374  }
2375  curpos = avio_tell(mkv->tracks_bc);
2376  avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
2377  // Do not write the OBUs as we don't have space saved for them
2378  put_ebml_binary(mkv->tracks_bc, MATROSKA_ID_CODECPRIVATE, codecpriv, 4);
2379  av_free(codecpriv);
2380  avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
2381  ret = ff_alloc_extradata(par, side_data_size);
2382  if (ret < 0)
2383  return ret;
2384  memcpy(par->extradata, side_data, side_data_size);
2385  } else if (!par->extradata_size)
2386  return AVERROR_INVALIDDATA;
2387  break;
2388  default:
2389  if (side_data_size)
2390  av_log(s, AV_LOG_DEBUG, "Ignoring new extradata in a packet for stream %d.\n", pkt->stream_index);
2391  break;
2392  }
2393 
2394  return 0;
2395 }
2396 
2398 {
2399  MatroskaMuxContext *mkv = s->priv_data;
2400  AVIOContext *pb = s->pb;
2402  int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
2403  int duration = pkt->duration;
2404  int ret;
2405  int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
2406  int64_t relative_packet_pos;
2407  int dash_tracknum = mkv->is_dash ? mkv->dash_track_number : pkt->stream_index + 1;
2408 
2409  if (ts == AV_NOPTS_VALUE) {
2410  av_log(s, AV_LOG_ERROR, "Can't write packet with unknown timestamp\n");
2411  return AVERROR(EINVAL);
2412  }
2413  ts += mkv->tracks[pkt->stream_index].ts_offset;
2414 
2415  if (mkv->cluster_pos != -1) {
2416  int64_t cluster_time = ts - mkv->cluster_pts;
2417  if ((int16_t)cluster_time != cluster_time) {
2418  av_log(s, AV_LOG_WARNING, "Starting new cluster due to timestamp\n");
2419  mkv_start_new_cluster(s, pkt);
2420  }
2421  }
2422 
2423  if (mkv->cluster_pos == -1) {
2424  mkv->cluster_pos = avio_tell(s->pb);
2425  ret = start_ebml_master_crc32(&mkv->cluster_bc, mkv);
2426  if (ret < 0)
2427  return ret;
2429  mkv->cluster_pts = FFMAX(0, ts);
2430  }
2431  pb = mkv->cluster_bc;
2432 
2433  relative_packet_pos = avio_tell(pb);
2434 
2435  if (par->codec_type != AVMEDIA_TYPE_SUBTITLE) {
2436  ret = mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe);
2437  if (ret < 0)
2438  return ret;
2439  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && (par->codec_type == AVMEDIA_TYPE_VIDEO && keyframe || add_cue)) {
2440  ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts, mkv->cluster_pos, relative_packet_pos, -1);
2441  if (ret < 0) return ret;
2442  }
2443  } else {
2444  if (par->codec_id == AV_CODEC_ID_WEBVTT) {
2445  duration = mkv_write_vtt_blocks(s, pb, pkt);
2446  } else {
2448  mkv_blockgroup_size(pkt->size));
2449 
2450 #if FF_API_CONVERGENCE_DURATION
2452  /* For backward compatibility, prefer convergence_duration. */
2453  if (pkt->convergence_duration > 0) {
2454  duration = pkt->convergence_duration;
2455  }
2457 #endif
2458  /* All subtitle blocks are considered to be keyframes. */
2459  mkv_write_block(s, pb, MATROSKA_ID_BLOCK, pkt, 1);
2461  end_ebml_master(pb, blockgroup);
2462  }
2463 
2464  if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
2465  ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts,
2466  mkv->cluster_pos, relative_packet_pos, duration);
2467  if (ret < 0)
2468  return ret;
2469  }
2470  }
2471 
2472  mkv->duration = FFMAX(mkv->duration, ts + duration);
2473 
2474  if (mkv->stream_durations)
2475  mkv->stream_durations[pkt->stream_index] =
2476  FFMAX(mkv->stream_durations[pkt->stream_index], ts + duration);
2477 
2478  return 0;
2479 }
2480 
2482 {
2483  MatroskaMuxContext *mkv = s->priv_data;
2485  int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
2486  int cluster_size;
2487  int64_t cluster_time;
2488  int ret;
2489  int start_new_cluster;
2490 
2491  ret = mkv_check_new_extra_data(s, pkt);
2492  if (ret < 0)
2493  return ret;
2494 
2495  if (mkv->tracks[pkt->stream_index].write_dts)
2496  cluster_time = pkt->dts - mkv->cluster_pts;
2497  else
2498  cluster_time = pkt->pts - mkv->cluster_pts;
2499  cluster_time += mkv->tracks[pkt->stream_index].ts_offset;
2500 
2501  // start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
2502  // after 4k and on a keyframe
2503  cluster_size = avio_tell(mkv->cluster_bc);
2504 
2505  if (mkv->is_dash && codec_type == AVMEDIA_TYPE_VIDEO) {
2506  // WebM DASH specification states that the first block of every cluster
2507  // has to be a key frame. So for DASH video, we only create a cluster
2508  // on seeing key frames.
2509  start_new_cluster = keyframe;
2510  } else if (mkv->is_dash && codec_type == AVMEDIA_TYPE_AUDIO &&
2511  (mkv->cluster_pos == -1 ||
2512  cluster_time > mkv->cluster_time_limit)) {
2513  // For DASH audio, we create a Cluster based on cluster_time_limit
2514  start_new_cluster = 1;
2515  } else if (!mkv->is_dash &&
2516  (cluster_size > mkv->cluster_size_limit ||
2517  cluster_time > mkv->cluster_time_limit ||
2518  (codec_type == AVMEDIA_TYPE_VIDEO && keyframe &&
2519  cluster_size > 4 * 1024))) {
2520  start_new_cluster = 1;
2521  } else {
2522  start_new_cluster = 0;
2523  }
2524 
2525  if (mkv->cluster_pos != -1 && start_new_cluster) {
2526  mkv_start_new_cluster(s, pkt);
2527  }
2528 
2529  if (!mkv->cluster_pos)
2530  avio_write_marker(s->pb,
2533 
2534  // check if we have an audio packet cached
2535  if (mkv->cur_audio_pkt.size > 0) {
2536  // for DASH audio, a CuePoint has to be added when there is a new cluster.
2538  mkv->is_dash ? start_new_cluster : 0);
2540  if (ret < 0) {
2541  av_log(s, AV_LOG_ERROR,
2542  "Could not write cached audio packet ret:%d\n", ret);
2543  return ret;
2544  }
2545  }
2546 
2547  // buffer an audio packet to ensure the packet containing the video
2548  // keyframe's timecode is contained in the same cluster for WebM
2549  if (codec_type == AVMEDIA_TYPE_AUDIO) {
2550  if (pkt->size > 0)
2551  ret = av_packet_ref(&mkv->cur_audio_pkt, pkt);
2552  } else
2553  ret = mkv_write_packet_internal(s, pkt, 0);
2554  return ret;
2555 }
2556 
2558 {
2559  MatroskaMuxContext *mkv = s->priv_data;
2560 
2561  if (!pkt) {
2562  if (mkv->cluster_pos != -1) {
2564  mkv, MATROSKA_ID_CLUSTER);
2565  mkv->cluster_pos = -1;
2566  av_log(s, AV_LOG_DEBUG,
2567  "Flushing cluster at offset %" PRIu64 " bytes\n",
2568  avio_tell(s->pb));
2569  avio_flush(s->pb);
2570  }
2571  return 1;
2572  }
2573  return mkv_write_packet(s, pkt);
2574 }
2575 
2577 {
2578  MatroskaMuxContext *mkv = s->priv_data;
2579  AVIOContext *pb = s->pb;
2580  int64_t currentpos, cuespos;
2581  int ret;
2582 
2583  // check if we have an audio packet cached
2584  if (mkv->cur_audio_pkt.size > 0) {
2585  ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt, 0);
2587  if (ret < 0) {
2588  av_log(s, AV_LOG_ERROR,
2589  "Could not write cached audio packet ret:%d\n", ret);
2590  return ret;
2591  }
2592  }
2593 
2594  if (mkv->cluster_bc) {
2596  }
2597 
2598  ret = mkv_write_chapters(s);
2599  if (ret < 0)
2600  return ret;
2601 
2602 
2603  if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
2604  if (mkv->cues->num_entries) {
2605  if (mkv->reserve_cues_space) {
2606  int64_t cues_end;
2607 
2608  currentpos = avio_tell(pb);
2609  avio_seek(pb, mkv->cues_pos, SEEK_SET);
2610 
2611  cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams);
2612  cues_end = avio_tell(pb);
2613  if (cues_end > cuespos + mkv->reserve_cues_space) {
2614  av_log(s, AV_LOG_ERROR,
2615  "Insufficient space reserved for cues: %d "
2616  "(needed: %" PRId64 ").\n",
2617  mkv->reserve_cues_space, cues_end - cuespos);
2618  return AVERROR(EINVAL);
2619  }
2620 
2621  if (cues_end < cuespos + mkv->reserve_cues_space)
2623  (cues_end - cuespos));
2624 
2625  avio_seek(pb, currentpos, SEEK_SET);
2626  } else {
2627  cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams);
2628  }
2629 
2631  cuespos);
2632  if (ret < 0)
2633  return ret;
2634  }
2635 
2636  mkv_write_seekhead(pb, mkv);
2637 
2638  // update the duration
2639  av_log(s, AV_LOG_DEBUG, "end duration = %" PRIu64 "\n", mkv->duration);
2640  currentpos = avio_tell(pb);
2641  if (mkv->info_bc) {
2642  avio_seek(mkv->info_bc, mkv->duration_offset, SEEK_SET);
2644  avio_seek(pb, mkv->info_pos, SEEK_SET);
2646  }
2647 
2648  if (mkv->tracks_bc) {
2649  // write tracks master
2650  avio_seek(pb, mkv->tracks_pos, SEEK_SET);
2652  }
2653 
2654  // update stream durations
2655  if (!mkv->is_live && mkv->stream_durations) {
2656  int i;
2657  int64_t curr = avio_tell(mkv->tags_bc);
2658  for (i = 0; i < s->nb_streams; ++i) {
2659  AVStream *st = s->streams[i];
2660 
2661  if (mkv->stream_duration_offsets[i] > 0) {
2662  double duration_sec = mkv->stream_durations[i] * av_q2d(st->time_base);
2663  char duration_string[20] = "";
2664 
2665  av_log(s, AV_LOG_DEBUG, "stream %d end duration = %" PRIu64 "\n", i,
2666  mkv->stream_durations[i]);
2667 
2668  avio_seek(mkv->tags_bc, mkv->stream_duration_offsets[i], SEEK_SET);
2669 
2670  snprintf(duration_string, 20, "%02d:%02d:%012.9f",
2671  (int) duration_sec / 3600, ((int) duration_sec / 60) % 60,
2672  fmod(duration_sec, 60));
2673 
2674  put_ebml_binary(mkv->tags_bc, MATROSKA_ID_TAGSTRING, duration_string, 20);
2675  }
2676  }
2677  avio_seek(mkv->tags_bc, curr, SEEK_SET);
2678  }
2679  if (mkv->tags_bc && !mkv->is_live) {
2680  avio_seek(pb, mkv->tags_pos, SEEK_SET);
2682  }
2683 
2684  avio_seek(pb, currentpos, SEEK_SET);
2685  }
2686 
2687  if (!mkv->is_live) {
2688  end_ebml_master(pb, mkv->segment);
2689  }
2690 
2691  mkv_free(mkv);
2692  return 0;
2693 }
2694 
2695 static int mkv_query_codec(enum AVCodecID codec_id, int std_compliance)
2696 {
2697  int i;
2698  for (i = 0; ff_mkv_codec_tags[i].id != AV_CODEC_ID_NONE; i++)
2699  if (ff_mkv_codec_tags[i].id == codec_id)
2700  return 1;
2701 
2702  if (std_compliance < FF_COMPLIANCE_NORMAL) {
2703  enum AVMediaType type = avcodec_get_type(codec_id);
2704  // mkv theoretically supports any video/audio through VFW/ACM
2705  if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)
2706  return 1;
2707  }
2708 
2709  return 0;
2710 }
2711 
2712 static int webm_query_codec(enum AVCodecID codec_id, int std_compliance)
2713 {
2714  int i;
2715  for (i = 0; ff_webm_codec_tags[i].id != AV_CODEC_ID_NONE; i++)
2716  if (ff_webm_codec_tags[i].id == codec_id)
2717  return 1;
2718 
2719  return 0;
2720 }
2721 
2722 static int mkv_init(struct AVFormatContext *s)
2723 {
2724  int i;
2725 
2726  if (s->nb_streams > MAX_TRACKS) {
2727  av_log(s, AV_LOG_ERROR,
2728  "At most %d streams are supported for muxing in Matroska\n",
2729  MAX_TRACKS);
2730  return AVERROR(EINVAL);
2731  }
2732 
2733  for (i = 0; i < s->nb_streams; i++) {
2734  if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_ATRAC3 ||
2740  av_log(s, AV_LOG_ERROR,
2741  "The Matroska muxer does not yet support muxing %s\n",
2743  return AVERROR_PATCHWELCOME;
2744  }
2745  }
2746 
2747  if (s->avoid_negative_ts < 0) {
2748  s->avoid_negative_ts = 1;
2750  }
2751 
2752  for (i = 0; i < s->nb_streams; i++) {
2753  // ms precision is the de-facto standard timescale for mkv files
2754  avpriv_set_pts_info(s->streams[i], 64, 1, 1000);
2755  }
2756 
2757  return 0;
2758 }
2759 
2760 static int mkv_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
2761 {
2762  int ret = 1;
2763  AVStream *st = s->streams[pkt->stream_index];
2764 
2765  if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
2766  if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
2767  ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
2768  } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) {
2769  ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL);
2770  }
2771 
2772  return ret;
2773 }
2774 
2776  { AV_CODEC_ID_ALAC, 0XFFFFFFFF },
2777  { AV_CODEC_ID_MLP, 0xFFFFFFFF },
2778  { AV_CODEC_ID_OPUS, 0xFFFFFFFF },
2779  { AV_CODEC_ID_PCM_S16BE, 0xFFFFFFFF },
2780  { AV_CODEC_ID_PCM_S24BE, 0xFFFFFFFF },
2781  { AV_CODEC_ID_PCM_S32BE, 0xFFFFFFFF },
2782  { AV_CODEC_ID_QDMC, 0xFFFFFFFF },
2783  { AV_CODEC_ID_QDM2, 0xFFFFFFFF },
2784  { AV_CODEC_ID_RA_144, 0xFFFFFFFF },
2785  { AV_CODEC_ID_RA_288, 0xFFFFFFFF },
2786  { AV_CODEC_ID_COOK, 0xFFFFFFFF },
2787  { AV_CODEC_ID_TRUEHD, 0xFFFFFFFF },
2788  { AV_CODEC_ID_NONE, 0xFFFFFFFF }
2789 };
2790 
2792  { AV_CODEC_ID_RV10, 0xFFFFFFFF },
2793  { AV_CODEC_ID_RV20, 0xFFFFFFFF },
2794  { AV_CODEC_ID_RV30, 0xFFFFFFFF },
2795  { AV_CODEC_ID_NONE, 0xFFFFFFFF }
2796 };
2797 
2799  { AV_CODEC_ID_DVB_SUBTITLE, 0xFFFFFFFF },
2800  { AV_CODEC_ID_DVD_SUBTITLE, 0xFFFFFFFF },
2801  { AV_CODEC_ID_HDMV_PGS_SUBTITLE, 0xFFFFFFFF },
2802  { AV_CODEC_ID_NONE, 0xFFFFFFFF }
2803 };
2804 
2805 #define OFFSET(x) offsetof(MatroskaMuxContext, x)
2806 #define FLAGS AV_OPT_FLAG_ENCODING_PARAM
2807 static const AVOption options[] = {
2808  { "reserve_index_space", "Reserve a given amount of space (in bytes) at the beginning of the file for the index (cues).", OFFSET(reserve_cues_space), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
2809  { "cluster_size_limit", "Store at most the provided amount of bytes in a cluster. ", OFFSET(cluster_size_limit), AV_OPT_TYPE_INT , { .i64 = -1 }, -1, INT_MAX, FLAGS },
2810  { "cluster_time_limit", "Store at most the provided number of milliseconds in a cluster.", OFFSET(cluster_time_limit), AV_OPT_TYPE_INT64, { .i64 = -1 }, -1, INT64_MAX, FLAGS },
2811  { "dash", "Create a WebM file conforming to WebM DASH specification", OFFSET(is_dash), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
2812  { "dash_track_number", "Track number for the DASH stream", OFFSET(dash_track_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 127, FLAGS },
2813  { "live", "Write files assuming it is a live stream.", OFFSET(is_live), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
2814  { "allow_raw_vfw", "allow RAW VFW mode", OFFSET(allow_raw_vfw), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
2815  { "write_crc32", "write a CRC32 element inside every Level 1 element", OFFSET(write_crc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
2816  { NULL },
2817 };
2818 
2819 #if CONFIG_MATROSKA_MUXER
2820 static const AVClass matroska_class = {
2821  .class_name = "matroska muxer",
2822  .item_name = av_default_item_name,
2823  .option = options,
2824  .version = LIBAVUTIL_VERSION_INT,
2825 };
2826 
2828  .name = "matroska",
2829  .long_name = NULL_IF_CONFIG_SMALL("Matroska"),
2830  .mime_type = "video/x-matroska",
2831  .extensions = "mkv",
2832  .priv_data_size = sizeof(MatroskaMuxContext),
2833  .audio_codec = CONFIG_LIBVORBIS_ENCODER ?
2835  .video_codec = CONFIG_LIBX264_ENCODER ?
2837  .init = mkv_init,
2843  .codec_tag = (const AVCodecTag* const []){
2846  },
2847  .subtitle_codec = AV_CODEC_ID_ASS,
2848  .query_codec = mkv_query_codec,
2849  .check_bitstream = mkv_check_bitstream,
2850  .priv_class = &matroska_class,
2851 };
2852 #endif
2853 
2854 #if CONFIG_WEBM_MUXER
2855 static const AVClass webm_class = {
2856  .class_name = "webm muxer",
2857  .item_name = av_default_item_name,
2858  .option = options,
2859  .version = LIBAVUTIL_VERSION_INT,
2860 };
2861 
2863  .name = "webm",
2864  .long_name = NULL_IF_CONFIG_SMALL("WebM"),
2865  .mime_type = "video/webm",
2866  .extensions = "webm",
2867  .priv_data_size = sizeof(MatroskaMuxContext),
2870  .subtitle_codec = AV_CODEC_ID_WEBVTT,
2871  .init = mkv_init,
2876  .check_bitstream = mkv_check_bitstream,
2879  .priv_class = &webm_class,
2880 };
2881 #endif
2882 
2883 #if CONFIG_MATROSKA_AUDIO_MUXER
2884 static const AVClass mka_class = {
2885  .class_name = "matroska audio muxer",
2886  .item_name = av_default_item_name,
2887  .option = options,
2888  .version = LIBAVUTIL_VERSION_INT,
2889 };
2891  .name = "matroska",
2892  .long_name = NULL_IF_CONFIG_SMALL("Matroska Audio"),
2893  .mime_type = "audio/x-matroska",
2894  .extensions = "mka",
2895  .priv_data_size = sizeof(MatroskaMuxContext),
2896  .audio_codec = CONFIG_LIBVORBIS_ENCODER ?
2898  .video_codec = AV_CODEC_ID_NONE,
2899  .init = mkv_init,
2903  .check_bitstream = mkv_check_bitstream,
2906  .codec_tag = (const AVCodecTag* const []){
2908  },
2909  .priv_class = &mka_class,
2910 };
2911 #endif
unsigned int nb_chapters
Number of chapters in AVChapter array.
Definition: avformat.h:1587
static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt, int add_cue)
Definition: matroskaenc.c:2397
int32_t pitch
Rotation around the right vector [-90, 90].
Definition: spherical.h:127
const char * name
Definition: avisynth_c.h:867
Context structure for the Lagged Fibonacci PRNG.
Definition: lfg.h:33
#define MATROSKA_ID_SEEKPREROLL
Definition: matroska.h:95
void av_sha_final(AVSHA *ctx, uint8_t *digest)
Finish hashing and output digest value.
Definition: sha.c:345
#define AV_STEREO3D_FLAG_INVERT
Inverted views, Right/Bottom represents the left view.
Definition: stereo3d.h:167
#define MATROSKA_ID_VIDEOPROJECTIONPOSEYAW
Definition: matroska.h:159
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:690
enum AVChromaLocation chroma_location
Definition: avcodec.h:4047
internal header for HEVC (de)muxer utilities
#define AV_DISPOSITION_METADATA
Definition: avformat.h:863
void avio_wb64(AVIOContext *s, uint64_t val)
Definition: aviobuf.c:463
#define NULL
Definition: coverity.c:32
static int mkv_write_vtt_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
Definition: matroskaenc.c:2234
#define MAX_CUEPOINT_CONTENT_SIZE(num_tracks)
per-cuepoint - 1 1-byte EBML ID, 1 1-byte EBML size, 8-byte uint max
Definition: matroskaenc.c:179
const char const char void * val
Definition: avisynth_c.h:863
#define MATROSKA_ID_BLOCKADDID
Definition: matroska.h:230
#define MATROSKA_ID_TRACKDEFAULTDURATION
Definition: matroska.h:104
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4038
void avio_wl16(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:469
static void put_ebml_size_unknown(AVIOContext *pb, int bytes)
Write an EBML size meaning "unknown size".
Definition: matroskaenc.c:201
Bytestream IO Context.
Definition: avio.h:161
enum AVColorTransferCharacteristic color_trc
Definition: avcodec.h:4045
#define MATROSKA_ID_VIDEOFLAGINTERLACED
Definition: matroska.h:121
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define MATROSKA_ID_VIDEOCOLOR_GX
Definition: matroska.h:147
static int start_ebml_master_crc32(AVIOContext **dyn_cp, MatroskaMuxContext *mkv)
Definition: matroskaenc.c:336
void ff_metadata_conv_ctx(AVFormatContext *ctx, const AVMetadataConv *d_conv, const AVMetadataConv *s_conv)
Definition: metadata.c:59
static const char * format[]
Definition: af_aiir.c:338
#define MATROSKA_ID_DATEUTC
Definition: matroska.h:71
int size
int sizebytes
how many bytes were reserved for the size
Definition: matroskaenc.c:62
#define MAX_TRACKS
Maximum number of tracks allowed in a Matroska file (with track numbers in range 1 to 126 (inclusive)...
Definition: matroskaenc.c:118
The optional first identifier line of a WebVTT cue.
Definition: avcodec.h:1340
uint32_t samples
Definition: wv.h:39
int initial
Definition: wv.h:43
#define MATROSKA_ID_TRACKFLAGLACING
Definition: matroska.h:101
unsigned MaxCLL
Max content light level (cd/m^2).
#define MATROSKA_ID_TRACKENTRY
Definition: matroska.h:75
#define MATROSKA_ID_VIDEODISPLAYHEIGHT
Definition: matroska.h:113
static void mkv_start_new_cluster(AVFormatContext *s, AVPacket *pkt)
Definition: matroskaenc.c:2277
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition: aviobuf.c:1415
AVOption.
Definition: opt.h:246
hash context
Definition: sha.c:34
int64_t cluster_pos
file offset of the cluster containing the block
Definition: matroskaenc.c:83
void ff_put_bmp_header(AVIOContext *pb, AVCodecParameters *par, int for_asf, int ignore_extradata)
Definition: riffenc.c:209
int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int flags)
Write WAVEFORMAT header structure.
Definition: riffenc.c:54
static int mkv_init(struct AVFormatContext *s)
Definition: matroskaenc.c:2722
#define MATROSKA_ID_VIDEOPROJECTIONPOSEROLL
Definition: matroska.h:161
#define MATROSKA_ID_CUETRACKPOSITION
Definition: matroska.h:192
enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
Definition: utils.c:3142
#define MATROSKA_ID_CODECPRIVATE
Definition: matroska.h:89
AVIOContext * cluster_bc
Definition: matroskaenc.c:131
av_cold int av_sha_init(AVSHA *ctx, int bits)
Initialize SHA-1 or SHA-2 hashing.
Definition: sha.c:273
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
#define AV_RB64
Definition: intreadwrite.h:164
void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: utils.c:4903
int av_parse_time(int64_t *timeval, const char *timestr, int duration)
Parse timestr and return in *time a corresponding number of microseconds.
Definition: parseutils.c:587
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
#define MATROSKA_ID_AUDIOBITDEPTH
Definition: matroska.h:167
#define MATROSKA_ID_TRACKFLAGDEFAULT
Definition: matroska.h:99
static const AVCodecTag additional_subtitle_tags[]
Definition: matroskaenc.c:2798
This side data should be associated with a video stream and contains Stereoscopic 3D information in f...
Definition: avcodec.h:1258
static int mkv_write_attachments(AVFormatContext *s)
Definition: matroskaenc.c:1737
uint64_t pts
Definition: matroskaenc.c:80
enum AVCodecID codec_id
Definition: qsv.c:72
Video represents a portion of a sphere mapped on a flat surface using equirectangular projection...
Definition: spherical.h:72
static int mkv_write_video_color(AVIOContext *pb, AVCodecParameters *par, AVStream *st)
Definition: matroskaenc.c:870
AVRational white_point[2]
CIE 1931 xy chromaticity coords of white point.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3957
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:943
#define MATROSKA_ID_TAGTARGETS_ATTACHUID
Definition: matroska.h:214
int num
Numerator.
Definition: rational.h:59
int size
Definition: avcodec.h:1478
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi - 0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_X86ASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
int ff_hevc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out, int *size, int filter_ps, int *ps_count)
Writes Annex B formatted HEVC NAL units to a data buffer.
Definition: hevc.c:1046
const char * b
Definition: vf_curves.c:116
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:246
#define MATROSKA_ID_FILEDATA
Definition: matroska.h:246
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1811
#define EBML_ID_DOCTYPEREADVERSION
Definition: matroska.h:42
#define us(width, name, range_min, range_max, subs,...)
Definition: cbs_h2645.c:266
#define MATROSKA_ID_BLOCKREFERENCE
Definition: matroska.h:237
#define AV_RB24
Definition: intreadwrite.h:64
static int mkv_write_header(AVFormatContext *s)
Definition: matroskaenc.c:1858
#define MATROSKA_ID_TRACKTYPE
Definition: matroska.h:80
enum AVMediaType codec_type
Definition: rtp.c:37
#define MATROSKA_ID_TAGTARGETS_CHAPTERUID
Definition: matroska.h:213
int ff_flac_is_native_layout(uint64_t channel_layout)
int64_t duration
duration of the block according to time base
Definition: matroskaenc.c:85
static av_always_inline uint64_t av_double2int(double f)
Reinterpret a double as a 64-bit integer.
Definition: intfloat.h:70
#define MATROSKA_ID_VIDEOCOLOR_RX
Definition: matroska.h:145
Video represents a sphere mapped on a flat surface using equirectangular projection.
Definition: spherical.h:56
#define MATROSKA_ID_MUXINGAPP
Definition: matroska.h:70
int64_t cluster_time_limit
Definition: matroskaenc.c:149
#define MATROSKA_ID_AUDIOCHANNELS
Definition: matroska.h:168
int has_primaries
Flag indicating whether the display primaries (and white point) are set.
unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
Definition: utils.c:3132
int64_t segment_offset
Definition: matroskaenc.c:89
const char * key
int version
Definition: avisynth_c.h:858
int avoid_negative_ts_use_pts
Definition: internal.h:121
const char * master
Definition: vf_curves.c:117
#define MATROSKA_ID_VIDEOPROJECTIONTYPE
Definition: matroska.h:157
AVPacketSideData * side_data
An array of side data that applies to the whole stream (i.e.
Definition: avformat.h:983
Views are next to each other.
Definition: stereo3d.h:67
static AVPacket pkt
#define av_le2ne32(x)
Definition: bswap.h:96
#define MATROSKA_ID_CUECLUSTERPOSITION
Definition: matroska.h:196
#define MATROSKA_ID_VIDEOCOLOR_LUMINANCEMAX
Definition: matroska.h:153
#define MAX_EBML_HEADER_SIZE
2 bytes * 7 for EBML IDs, 7 1-byte EBML lengths, 6 1-byte uint, 8 byte for "matroska" doctype string ...
Definition: matroskaenc.c:168
Definition: matroskaenc.c:65
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
Converts AVChromaLocation to swscale x/y chroma position.
Definition: utils.c:353
AVDictionary * metadata
Definition: avformat.h:1319
static void end_ebml_master_crc32_preliminary(AVIOContext *pb, AVIOContext **dyn_cp, MatroskaMuxContext *mkv, uint32_t id, int64_t *pos)
Complete ebml master without destroying the buffer, allowing for later updates.
Definition: matroskaenc.c:372
#define MATROSKA_ID_VIDEOCOLORCHROMASITINGHORZ
Definition: matroska.h:135
mkv_track * tracks
Definition: matroskaenc.c:138
#define src
Definition: vp8dsp.c:254
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:476
#define MATROSKA_ID_EDITIONFLAGDEFAULT
Definition: matroska.h:260
#define MATROSKA_ID_CLUSTERTIMECODE
Definition: matroska.h:224
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Definition: aviobuf.c:1386
#define EBML_ID_DOCTYPE
Definition: matroska.h:40
#define AVFMT_TS_NONSTRICT
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition: avformat.h:477
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3949
#define MATROSKA_ID_CHAPTERTIMEEND
Definition: matroska.h:253
enum AVColorSpace color_space
Definition: avcodec.h:4046
int64_t pos
absolute offset in the containing AVIOContext where the master&#39;s elements start
Definition: matroskaenc.c:61
MatroskaVideoStereoModeType
Definition: matroska.h:300
Mastering display metadata (based on SMPTE-2086:2014).
Definition: avcodec.h:1366
#define FLAGS
Definition: matroskaenc.c:2806
#define MATROSKA_ID_FILEDESC
Definition: matroska.h:243
Format I/O context.
Definition: avformat.h:1358
#define EBML_ID_CRC32
Definition: matroska.h:46
UID uid
Definition: mxfenc.c:2214
static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, uint32_t elementid, uint64_t filepos)
Definition: matroskaenc.c:461
char str[32]
Definition: internal.h:50
static int query_codec(enum AVCodecID id, int std_compliance)
Definition: img2enc.c:199
int64_t cluster_pos
file offset of the current cluster
Definition: matroskaenc.c:132
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_WB64(p, v)
Definition: intreadwrite.h:433
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
static const AVCodecTag additional_audio_tags[]
Definition: matroskaenc.c:2775
Public dictionary API.
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
void avio_wl32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:369
uint8_t
#define MATROSKA_ID_VIDEOCOLOR_BX
Definition: matroska.h:149
#define MATROSKA_ID_CHAPLANG
Definition: matroska.h:256
#define av_malloc(s)
int width
Video only.
Definition: avcodec.h:4023
AVOptions.
#define MATROSKA_ID_TRACKLANGUAGE
Definition: matroska.h:97
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2019
Stereo 3D type: this structure describes how two videos are packed within a single video surface...
Definition: stereo3d.h:176
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom.c:75
#define OPUS_SEEK_PREROLL
Seek preroll value for opus.
Definition: matroskaenc.c:182
uint32_t flags
Definition: wv.h:40
#define AV_RB32
Definition: intreadwrite.h:130
int ff_mkv_stereo3d_conv(AVStream *st, MatroskaVideoStereoModeType stereo_mode)
Definition: matroska.c:171
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
uint64_t segmentpos
Definition: matroskaenc.c:67
int id
unique ID to identify the chapter
Definition: avformat.h:1316
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1495
#define MATROSKA_ID_TIMECODESCALE
Definition: matroska.h:66
static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int native_id, int qt_id)
Definition: matroskaenc.c:803
#define MATROSKA_ID_SIMPLEBLOCK
Definition: matroska.h:232
#define MATROSKA_ID_EDITIONFLAGHIDDEN
Definition: matroska.h:259
int nb_side_data
The number of elements in the AVStream.side_data array.
Definition: avformat.h:987
void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type)
Mark the written bytestream as a specific type.
Definition: aviobuf.c:493
uint8_t * av_stream_get_side_data(const AVStream *stream, enum AVPacketSideDataType type, int *size)
Get side information from stream.
Definition: utils.c:5464
#define MATROSKA_ID_BLOCKMORE
Definition: matroska.h:229
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1426
int64_t duration
Definition: movenc.c:63
#define MATROSKA_ID_CUERELATIVEPOSITION
Definition: matroska.h:197
A point in the output bytestream where a demuxer can start parsing (for non self synchronizing bytest...
Definition: avio.h:128
#define MATROSKA_ID_AUDIOOUTSAMPLINGFREQ
Definition: matroska.h:165
#define MATROSKA_ID_VIDEOCOLOR
Definition: matroska.h:127
Public header for CRC hash function implementation.
int initial_padding
Audio only.
Definition: avcodec.h:4086
const char data[16]
Definition: mxf.c:91
static int webm_query_codec(enum AVCodecID codec_id, int std_compliance)
Definition: matroskaenc.c:2712
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
int flags
Flags modifying the (de)muxer behaviour.
Definition: avformat.h:1489
uint8_t * data
Definition: avcodec.h:1477
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
#define CONFIG_LIBVPX_VP9_ENCODER
Definition: config.h:1411
static int64_t mkv_write_cues(AVFormatContext *s, mkv_cues *cues, mkv_track *tracks, int num_tracks)
Definition: matroskaenc.c:572
#define MATROSKA_ID_VIDEODISPLAYWIDTH
Definition: matroska.h:112
int ff_isom_write_av1c(AVIOContext *pb, const uint8_t *buf, int size)
Writes AV1 extradata (Sequence Header and Metadata OBUs) to the provided AVIOContext.
Definition: av1.c:323
#define MATROSKA_ID_BLOCKADDITIONS
Definition: matroska.h:228
uint32_t tag
Definition: movenc.c:1496
static EbmlSyntax ebml_header[]
Definition: matroskadec.c:404
Not part of ABI.
Definition: pixfmt.h:523
#define WV_HEADER_SIZE
Definition: wavpack.h:30
enum AVCodecID id
Definition: internal.h:51
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
uint8_t * data
Definition: avcodec.h:1421
#define MATROSKA_ID_CUES
Definition: matroska.h:58
int64_t ts_offset
Definition: matroskaenc.c:100
#define max(a, b)
Definition: cuda_runtime.h:33
Video is not stereoscopic (and metadata has to be there).
Definition: stereo3d.h:55
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:557
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
int has_luminance
Flag indicating whether the luminance (min_ and max_) have been set.
static const uint8_t header[24]
Definition: sdr2.c:67
#define MATROSKA_ID_TRACKNUMBER
Definition: matroska.h:78
#define MATROSKA_ID_VIDEOCOLOR_WHITEY
Definition: matroska.h:152
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:218
Definition: wv.h:34
#define AVFMT_FLAG_BITEXACT
When muxing, try to avoid writing any random/volatile data to the output.
Definition: avformat.h:1506
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array.
Definition: mem.c:198
#define MATROSKA_ID_SEGMENTUID
Definition: matroska.h:72
AVOutputFormat ff_webm_muxer
static int mkv_write_block(AVFormatContext *s, AVIOContext *pb, uint32_t blockid, AVPacket *pkt, int keyframe)
Definition: matroskaenc.c:2119
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4059
static void put_ebml_num(AVIOContext *pb, uint64_t num, int bytes)
Write a number in EBML variable length format.
Definition: matroskaenc.c:227
#define av_log(a,...)
int has_cue
Definition: matroskaenc.c:96
#define AV_DISPOSITION_CAPTIONS
To specify text track kind (different from subtitles default).
Definition: avformat.h:861
int64_t segment_offset
the file offset to the beginning of the segment
Definition: matroskaenc.c:72
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:608
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1509
#define MATROSKA_ID_TRACKUID
Definition: matroska.h:79
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
ebml_master segment
Definition: matroskaenc.c:129
static int mkv_write_simpletag(AVIOContext *pb, AVDictionaryEntry *t)
Definition: matroskaenc.c:1538
#define MATROSKA_ID_VIDEOSTEREOMODE
Definition: matroska.h:123
uint32_t chapter_id_offset
Definition: matroskaenc.c:155
static void put_ebml_id(AVIOContext *pb, uint32_t id)
Definition: matroskaenc.c:189
int ff_parse_creation_time_metadata(AVFormatContext *s, int64_t *timestamp, int return_seconds)
Parse creation_time in AVFormatContext metadata if exists and warn if the parsing fails...
Definition: utils.c:5670
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
AVPacket cur_audio_pkt
Definition: matroskaenc.c:141
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
static int mkv_write_tags(AVFormatContext *s)
Definition: matroskaenc.c:1647
#define MATROSKA_ID_VIDEOCOLOR_BY
Definition: matroska.h:150
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2040
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
static void put_ebml_float(AVIOContext *pb, uint32_t elementid, double val)
Definition: matroskaenc.c:272
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1533
AVDictionary * metadata
Metadata that applies to the whole file.
Definition: avformat.h:1598
int flags
Additional information about the frame packing.
Definition: stereo3d.h:185
#define MATROSKA_ID_BLOCKDURATION
Definition: matroska.h:236
#define EBML_ID_EBMLREADVERSION
Definition: matroska.h:37
#define MATROSKA_ID_VIDEOCOLORMAXCLL
Definition: matroska.h:141
#define MAX_CUETRACKPOS_SIZE
per-cuepoint-track - 5 1-byte EBML IDs, 5 1-byte EBML sizes, 3 8-byte uint max and one 1-byte uint fo...
Definition: matroskaenc.c:176
#define MATROSKA_ID_VIDEOCOLOR_WHITEX
Definition: matroska.h:151
static int get_aac_sample_rates(AVFormatContext *s, uint8_t *extradata, int extradata_size, int *sample_rate, int *output_sample_rate)
Definition: matroskaenc.c:717
#define AV_RB16
Definition: intreadwrite.h:53
#define AVERROR(e)
Definition: error.h:43
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
Definition: avpacket.c:350
int reserved_size
-1 if appending to file
Definition: matroskaenc.c:73
#define MATROSKA_ID_CLUSTER
Definition: matroska.h:62
const char * ff_convert_lang_to(const char *lang, enum AVLangCodespace target_codespace)
Convert a language code to a target codespace.
Definition: avlanguage.c:736
#define MATROSKA_ID_VIDEOCOLORCHROMASITINGVERT
Definition: matroska.h:136
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
Views are packed per line, as if interlaced.
Definition: stereo3d.h:129
enum AVColorPrimaries color_primaries
Definition: avcodec.h:4044
#define MATROSKA_ID_FILEMIMETYPE
Definition: matroska.h:245
#define MATROSKA_ID_WRITINGAPP
Definition: matroska.h:69
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int ff_isom_write_hvcc(AVIOContext *pb, const uint8_t *data, int size, int ps_array_completeness)
Writes HEVC extradata (parameter sets, declarative SEI NAL units) to the provided AVIOContext...
Definition: hevc.c:1062
Not part of ABI.
Definition: pixfmt.h:460
AVIOContext * tracks_bc
Definition: matroskaenc.c:127
const char *const ff_matroska_video_stereo_mode[MATROSKA_VIDEO_STEREOMODE_TYPE_NB]
Definition: matroska.c:147
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
static int mkv_blockgroup_size(int pkt_size)
Definition: matroskaenc.c:2057
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:3953
static int ebml_num_size(uint64_t num)
Calculate how many bytes are needed to represent a given number in EBML.
Definition: matroskaenc.c:211
int write_dts
Definition: matroskaenc.c:95
int final
Definition: wv.h:43
AVChapter ** chapters
Definition: avformat.h:1588
int ff_vorbiscomment_write(uint8_t **p, AVDictionary **m, const char *vendor_string, AVChapter **chapters, unsigned int nb_chapters)
Write a VorbisComment into a buffer.
Definition: vorbiscomment.c:65
enum AVCodecID id
Definition: matroska.h:354
enum AVPacketSideDataType type
Definition: avcodec.h:1423
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
Get the type of the given codec.
Definition: codec_desc.c:3282
static int mkv_write_chapters(AVFormatContext *s)
Definition: matroskaenc.c:1479
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
#define EBML_ID_EBMLMAXIDLENGTH
Definition: matroska.h:38
#define MATROSKA_ID_CHAPTERFLAGHIDDEN
Definition: matroska.h:263
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
uint32_t crc
Definition: wv.h:41
AVRational avg_frame_rate
Average framerate.
Definition: avformat.h:954
const AVCodecTag ff_codec_wav_tags[]
Definition: riff.c:499
#define FFMAX(a, b)
Definition: common.h:94
static mkv_seekhead * mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset, int numelements)
Initialize a mkv_seekhead element to be ready to index level 1 Matroska elements. ...
Definition: matroskaenc.c:440
int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size)
Definition: avc.c:94
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
void avcodec_parameters_free(AVCodecParameters **par)
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied p...
Definition: utils.c:2029
int64_t filepos
Definition: matroskaenc.c:71
#define fail()
Definition: checkasm.h:120
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1483
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3975
const CodecMime ff_mkv_mime_tags[]
Definition: matroska.c:131
#define MATROSKA_ID_TAG
Definition: matroska.h:202
const CodecTags ff_webm_codec_tags[]
Definition: matroska.c:106
Views are alternated temporally.
Definition: stereo3d.h:92
#define AV_DISPOSITION_FORCED
Track should be used during playback by default.
Definition: avformat.h:838
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1414
uint32_t bound_bottom
Distance from the bottom edge.
Definition: spherical.h:170
AVOutputFormat ff_matroska_audio_muxer
#define LIBAVFORMAT_IDENT
Definition: version.h:46
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
Definition: avio.h:260
Video frame is split into 6 faces of a cube, and arranged on a 3x2 layout.
Definition: spherical.h:65
int void avio_flush(AVIOContext *s)
Force flushing of buffered data.
Definition: aviobuf.c:238
#define MATROSKA_ID_VIDEOCOLOR_LUMINANCEMIN
Definition: matroska.h:154
audio channel layout utility functions
int ff_alloc_extradata(AVCodecParameters *par, int size)
Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0...
Definition: utils.c:3305
#define EBML_ID_EBMLVERSION
Definition: matroska.h:36
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
mkv_cuepoint * entries
Definition: matroskaenc.c:90
void ffio_fill(AVIOContext *s, int b, int count)
Definition: aviobuf.c:204
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
#define MATROSKA_ID_TAGTARGETS
Definition: matroska.h:209
const AVCodecTag ff_codec_bmp_tags[]
Definition: riff.c:32
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:213
#define MATROSKA_ID_TAGNAME
Definition: matroska.h:204
AVRational min_luminance
Min luminance of mastering display (cd/m^2).
static int put_wv_codecpriv(AVIOContext *pb, AVCodecParameters *par)
Definition: matroskaenc.c:659
static void mkv_free(MatroskaMuxContext *mkv)
Free the members allocated in the mux context.
Definition: matroskaenc.c:394
#define MATROSKA_ID_CHAPTERFLAGENABLED
Definition: matroska.h:264
static int64_t mkv_write_seekhead(AVIOContext *pb, MatroskaMuxContext *mkv)
Write the seek head to the file and free it.
Definition: matroskaenc.c:489
static int mkv_write_native_codecprivate(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, AVIOContext *dyn_cp)
Definition: matroskaenc.c:750
void av_sha_update(struct AVSHA *ctx, const uint8_t *data, unsigned int len)
Update hash value.
Definition: sha.c:315
static int64_t get_metadata_duration(AVFormatContext *s)
Definition: matroskaenc.c:1834
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:226
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:466
This side data should be associated with a video stream and corresponds to the AVSphericalMapping str...
Definition: avcodec.h:1372
int64_t ff_vorbiscomment_length(AVDictionary *m, const char *vendor_string, AVChapter **chapters, unsigned int nb_chapters)
Calculate the length in bytes of a VorbisComment.
Definition: vorbiscomment.c:41
uint32_t bound_right
Distance from the right edge.
Definition: spherical.h:169
int ff_wv_parse_header(WvHeader *wv, const uint8_t *data)
Parse a WavPack block header.
Definition: wv.c:29
#define MATROSKA_ID_SIMPLETAG
Definition: matroska.h:203
const char * name
Definition: avformat.h:505
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
Definition: crc.c:392
#define AV_WB24(p, d)
Definition: intreadwrite.h:450
static int mkv_check_new_extra_data(AVFormatContext *s, AVPacket *pkt)
Definition: matroskaenc.c:2290
int ff_flac_write_header(AVIOContext *pb, uint8_t *extradata, int extradata_size, int last_block)
#define s(width, name)
Definition: cbs_vp9.c:257
int avoid_negative_ts
Avoid negative timestamps during muxing.
Definition: avformat.h:1689
#define MATROSKA_ID_CHAPTERATOM
Definition: matroska.h:251
int avpriv_split_xiph_headers(const uint8_t *extradata, int extradata_size, int first_header_size, const uint8_t *header_start[3], int header_len[3])
Split a single extradata buffer into the three headers that most Xiph codecs use. ...
Definition: xiph.c:24
#define CONFIG_LIBVORBIS_ENCODER
Definition: config.h:1409
#define AV_RL32
Definition: intreadwrite.h:146
int32_t yaw
Rotation around the up vector [-180, 180].
Definition: spherical.h:126
AVDictionary * metadata
Definition: avformat.h:945
enum AVColorRange color_range
Video only.
Definition: avcodec.h:4043
AVIOContext * info_bc
Definition: matroskaenc.c:125
Opaque data information usually sparse.
Definition: avutil.h:205
#define MATROSKA_ID_VIDEOCOLORSPACE
Definition: matroska.h:126
#define MATROSKA_ID_CHAPTERS
Definition: matroska.h:63
#define EBML_ID_VOID
Definition: matroska.h:45
#define OFFSET(x)
Definition: matroskaenc.c:2805
#define MATROSKA_ID_AUDIOSAMPLINGFREQ
Definition: matroska.h:164
static int mkv_check_tag(AVDictionary *m, uint32_t elementid)
Definition: matroskaenc.c:1636
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1166
#define av_log2
Definition: intmath.h:83
ff_const59 struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1377
void ffio_free_dyn_buf(AVIOContext **s)
Free a dynamic buffer.
Definition: aviobuf.c:1445
uint32_t padding
Number of pixels to pad from the edge of each cube face.
Definition: spherical.h:182
static int mkv_add_cuepoint(mkv_cues *cues, int stream, int tracknum, int64_t ts, int64_t cluster_pos, int64_t relative_pos, int64_t duration)
Definition: matroskaenc.c:549
int metadata_header_padding
Number of bytes to be written as padding in a metadata header.
Definition: avformat.h:1858
Stream structure.
Definition: avformat.h:881
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
int64_t end
chapter start/end time in time_base units
Definition: avformat.h:1318
Content light level (based on CTA-861.3).
Definition: avcodec.h:1379
static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv, int i, AVIOContext *pb, int default_stream_exists)
Definition: matroskaenc.c:1174
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
Definition: avio.h:40
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Definition: avcodec.h:1199
#define AV_DISPOSITION_DEFAULT
Definition: avformat.h:826
sample_rate
enum AVStereo3DType type
How views are packed within the video.
Definition: stereo3d.h:180
Views are packed in a checkerboard-like structure per pixel.
Definition: stereo3d.h:104
#define MATROSKA_ID_VIDEOCOLORMATRIXCOEFF
Definition: matroska.h:129
#define AV_DISPOSITION_DESCRIPTIONS
Definition: avformat.h:862
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
#define MATROSKA_ID_TRACKFLAGFORCED
Definition: matroska.h:100
#define MATROSKA_ID_TAGS
Definition: matroska.h:59
Views are on top of each other.
Definition: stereo3d.h:79
#define MATROSKA_ID_VIDEOCOLORPRIMARIES
Definition: matroska.h:140
int64_t sample_rate_offset
Definition: matroskaenc.c:98
#define MATROSKA_ID_VIDEOPROJECTIONPOSEPITCH
Definition: matroska.h:160
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
#define MATROSKA_ID_SEEKID
Definition: matroska.h:220
AVIOContext * pb
I/O context.
Definition: avformat.h:1400
int64_t codecpriv_offset
Definition: matroskaenc.c:99
static void put_ebml_uint(AVIOContext *pb, uint32_t elementid, uint64_t val)
Definition: matroskaenc.c:246
void avio_w8(AVIOContext *s, int b)
Definition: aviobuf.c:196
Public header for SHA-1 & SHA-256 hash function implementations.
#define MATROSKA_ID_BLOCK
Definition: matroska.h:235
#define MATROSKA_ID_INFO
Definition: matroska.h:56
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:599
#define MATROSKA_ID_TAGTARGETS_TRACKUID
Definition: matroska.h:212
mkv_attachment * entries
Definition: matroskaenc.c:109
uint32_t fileuid
Definition: matroskaenc.c:105
#define MATROSKA_ID_TAGLANG
Definition: matroska.h:206
struct AVSHA * av_sha_alloc(void)
Allocate an AVSHA context.
Definition: sha.c:45
static unsigned int av_lfg_get(AVLFG *c)
Get the next random unsigned 32-bit number using an ALFG.
Definition: lfg.h:53
int ff_av1_filter_obus_buf(const uint8_t *buf, uint8_t **out, int *size)
Filter out AV1 OBUs not meant to be present in ISOBMFF sample data and write the resulting bitstream ...
Definition: av1.c:61
#define MATROSKA_ID_TRACKS
Definition: matroska.h:57
void * buf
Definition: avisynth_c.h:766
Data found in BlockAdditional element of matroska container.
Definition: avcodec.h:1335
#define MATROSKA_ID_TRACKNAME
Definition: matroska.h:96
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
#define MATROSKA_ID_SEEKENTRY
Definition: matroska.h:217
Describe the class of an AVClass context structure.
Definition: log.h:67
#define MATROSKA_ID_EDITIONENTRY
Definition: matroska.h:250
#define FF_COMPLIANCE_NORMAL
Definition: avcodec.h:2631
static int mkv_check_tag_name(const char *name, uint32_t elementid)
Definition: matroskaenc.c:1598
#define MATROSKA_ID_BLOCKGROUP
Definition: matroska.h:227
#define MATROSKA_ID_VIDEOPIXELHEIGHT
Definition: matroska.h:115
int32_t roll
Rotation around the forward vector [-180, 180].
Definition: spherical.h:128
static int mkv_write_tracks(AVFormatContext *s)
Definition: matroskaenc.c:1446
Rational number (pair of numerator and denominator).
Definition: rational.h:58
Mastering display metadata capable of representing the color volume of the display used to master the...
#define MATROSKA_ID_CUEDURATION
Definition: matroska.h:198
static int mkv_write_tag_targets(AVFormatContext *s, uint32_t elementid, unsigned int uid, ebml_master *tag)
Definition: matroskaenc.c:1572
#define MATROSKA_ID_CUETIME
Definition: matroska.h:191
Not part of ABI.
Definition: pixfmt.h:489
AVFieldOrder
Definition: avcodec.h:1543
Recommmends skipping the specified number of samples.
Definition: avcodec.h:1300
cl_device_type type
AVMediaType
Definition: avutil.h:199
av_cold void av_lfg_init(AVLFG *c, unsigned int seed)
Definition: lfg.c:32
int64_t duration_offset
Definition: matroskaenc.c:134
#define MATROSKA_ID_VIDEOCOLORTRANSFERCHARACTERISTICS
Definition: matroska.h:138
#define MATROSKA_ID_TITLE
Definition: matroska.h:68
#define snprintf
Definition: snprintf.h:34
#define MATROSKA_ID_TRACKVIDEO
Definition: matroska.h:81
static int mkv_strip_wavpack(const uint8_t *src, uint8_t **pdst, int *size)
Definition: matroskaenc.c:2066
This structure describes how to handle spherical videos, outlining information about projection...
Definition: spherical.h:82
#define MATROSKA_ID_VIDEOPROJECTION
Definition: matroska.h:156
#define MATROSKA_ID_VIDEOCOLORMASTERINGMETA
Definition: matroska.h:144
misc parsing utilities
#define CONFIG_LIBOPUS_ENCODER
Definition: config.h:1403
#define MATROSKA_ID_VIDEOPROJECTIONPRIVATE
Definition: matroska.h:158
AVRational display_primaries[3][2]
CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
#define MATROSKA_ID_ATTACHMENTS
Definition: matroska.h:61
static int64_t pts
void avio_wb16(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:475
#define flags(name, subs,...)
Definition: cbs_av1.c:564
int64_t * stream_duration_offsets
Definition: matroskaenc.c:161
#define MATROSKA_ID_CHAPTERDISPLAY
Definition: matroska.h:254
static int put_xiph_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par)
Definition: matroskaenc.c:631
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: avcodec.h:4012
#define MATROSKA_ID_FILENAME
Definition: matroska.h:244
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:106
#define MATROSKA_ID_BLOCKADDITIONAL
Definition: matroska.h:231
uint32_t bound_top
Distance from the top edge.
Definition: spherical.h:168
const AVMetadataConv ff_mkv_metadata_conv[]
Definition: matroska.c:141
#define MATROSKA_ID_CODECID
Definition: matroska.h:88
static const AVCodecTag additional_video_tags[]
Definition: matroskaenc.c:2791
static int put_flac_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par)
Definition: matroskaenc.c:668
#define MATROSKA_ID_VIDEOFIELDORDER
Definition: matroska.h:122
int64_t start
Definition: avformat.h:1318
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
Definition: crc.c:374
int sample_rate
Audio only.
Definition: avcodec.h:4067
#define MATROSKA_ID_VIDEOALPHAMODE
Definition: matroska.h:124
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
static int mkv_write_trailer(AVFormatContext *s)
Definition: matroskaenc.c:2576
Main libavformat public API header.
static int mkv_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
Definition: matroskaenc.c:2760
attribute_deprecated int64_t convergence_duration
Definition: avcodec.h:1506
#define MATROSKA_ID_CUETRACK
Definition: matroska.h:195
#define MATROSKA_ID_SEEKPOSITION
Definition: matroska.h:221
int64_t last_track_timestamp[MAX_TRACKS]
Definition: matroskaenc.c:158
#define MATROSKA_ID_CODECDELAY
Definition: matroska.h:94
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
#define MATROSKA_ID_CHAPTERTIMESTART
Definition: matroska.h:252
common internal api header.
#define MATROSKA_ID_VIDEOCOLORRANGE
Definition: matroska.h:137
enum AVSphericalProjection projection
Projection type.
Definition: spherical.h:86
Utilties for rational number calculation.
int ffio_init_context(AVIOContext *s, unsigned char *buffer, int buffer_size, int write_flag, void *opaque, int(*read_packet)(void *opaque, uint8_t *buf, int buf_size), int(*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t(*seek)(void *opaque, int64_t offset, int whence))
Definition: aviobuf.c:81
static double c[64]
static int mkv_write_flush_packet(AVFormatContext *s, AVPacket *pkt)
Definition: matroskaenc.c:2557
int disposition
AV_DISPOSITION_* bit field.
Definition: avformat.h:934
static ebml_master start_ebml_master(AVIOContext *pb, uint32_t elementid, uint64_t expectedsize)
Definition: matroskaenc.c:316
static void put_ebml_void(AVIOContext *pb, uint64_t size)
Write a void element of a given size.
Definition: matroskaenc.c:299
Stereoscopic video.
Views are packed per column.
Definition: stereo3d.h:141
AVRational time_base
time base in which the start/end timestamps are specified
Definition: avformat.h:1317
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:33
char * key
Definition: dict.h:86
int den
Denominator.
Definition: rational.h:60
#define MATROSKA_ID_SEGMENT
Definition: matroska.h:53
#define MAX_PCE_SIZE
Maximum size of a PCE including the 3-bit ID_PCE.
Definition: mpeg4audio.h:119
int avpriv_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf, int bit_size, int sync_extension)
Parse MPEG-4 systems extradata from a raw buffer to retrieve audio configuration. ...
Definition: mpeg4audio.c:159
The optional settings (rendering instructions) that immediately follow the timestamp specifier of a W...
Definition: avcodec.h:1346
#define MATROSKA_ID_SEEKHEAD
Definition: matroska.h:60
#define EBML_ID_HEADER
Definition: matroska.h:33
uint32_t elementid
Definition: matroskaenc.c:66
A point in the output bytestream where a decoder can start decoding (i.e.
Definition: avio.h:122
mkv_attachments * attachments
Definition: matroskaenc.c:139
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition: avformat.h:470
#define av_free(p)
char * value
Definition: dict.h:87
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
#define MATROSKA_ID_POINTENTRY
Definition: matroska.h:188
mkv_seekhead_entry * entries
Definition: matroskaenc.c:75
int len
static int mkv_write_stereo_mode(AVFormatContext *s, AVIOContext *pb, AVStream *st, int mode, int *h_width, int *h_height)
Definition: matroskaenc.c:1076
#define MATROSKA_ID_FILEUID
Definition: matroska.h:247
int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *args)
Add a bitstream filter to a stream.
Definition: utils.c:5533
static void put_ebml_binary(AVIOContext *pb, uint32_t elementid, const void *buf, int size)
Definition: matroskaenc.c:279
void * priv_data
Format private data.
Definition: avformat.h:1386
#define MATROSKA_ID_CHAPTERUID
Definition: matroska.h:262
char str[22]
Definition: matroska.h:353
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:337
uint32_t bound_left
Distance from the left edge.
Definition: spherical.h:167
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: avcodec.h:3999
int64_t relative_pos
relative offset from the position of the cluster containing the block
Definition: matroskaenc.c:84
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3971
#define MATROSKA_ID_VIDEOCOLORMAXFALL
Definition: matroska.h:142
#define MATROSKA_ID_VIDEODISPLAYUNIT
Definition: matroska.h:120
int channels
Audio only.
Definition: avcodec.h:4063
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1476
static const AVOption options[]
Definition: matroskaenc.c:2807
#define EBML_ID_EBMLMAXSIZELENGTH
Definition: matroska.h:39
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:377
int64_t duration
Duration of the stream, in AV_TIME_BASE fractional seconds.
Definition: avformat.h:1473
#define MATROSKA_ID_CHAPSTRING
Definition: matroska.h:255
int sample_rate
Definition: matroskaenc.c:97
#define av_freep(p)
#define MATROSKA_ID_TAGSTRING
Definition: matroska.h:205
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
#define MODE_MATROSKAv2
Definition: matroskaenc.c:113
uint32_t av_get_random_seed(void)
Get a seed to use in conjunction with random functions.
Definition: random_seed.c:120
static void put_ebml_string(AVIOContext *pb, uint32_t elementid, const char *str)
Definition: matroskaenc.c:287
AVOutputFormat ff_matroska_muxer
const CodecMime ff_mkv_image_mime_tags[]
Definition: matroska.c:122
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1028
static void put_ebml_sint(AVIOContext *pb, uint32_t elementid, int64_t val)
Definition: matroskaenc.c:259
#define MODE_WEBM
Definition: matroskaenc.c:114
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3961
static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: matroskaenc.c:2481
#define MATROSKA_ID_DURATION
Definition: matroska.h:67
#define MAX_SEEKENTRY_SIZE
2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit offset, 4 bytes for target EBML I...
Definition: matroskaenc.c:172
static mkv_cues * mkv_start_cues(int64_t segment_offset)
Definition: matroskaenc.c:539
int stream_index
Definition: avcodec.h:1479
int num_entries
Definition: matroskaenc.c:91
#define EBML_ID_DOCTYPEVERSION
Definition: matroska.h:41
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avformat.h:910
static void end_ebml_master(AVIOContext *pb, ebml_master master)
Definition: matroskaenc.c:326
int64_t segment_offset
Definition: matroskaenc.c:130
static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, uint32_t elementid, unsigned int uid)
Definition: matroskaenc.c:1612
#define CONFIG_LIBX264_ENCODER
Definition: config.h:1416
#define MATROSKA_ID_ATTACHEDFILE
Definition: matroska.h:242
#define MATROSKA_ID_VIDEOCOLOR_GY
Definition: matroska.h:148
enum AVCodecID id
unsigned MaxFALL
Max average light level per frame (cd/m^2).
This structure stores compressed data.
Definition: avcodec.h:1454
int64_t * stream_durations
Definition: matroskaenc.c:160
static void mkv_write_field_order(AVIOContext *pb, int mode, enum AVFieldOrder field_order)
Definition: matroskaenc.c:1037
mode
Use these values in ebur128_init (or&#39;ed).
Definition: ebur128.h:83
#define MATROSKA_ID_VIDEOCOLOR_RY
Definition: matroska.h:146
uint32_t blocksize
Definition: wv.h:35
static int mkv_query_codec(enum AVCodecID codec_id, int std_compliance)
Definition: matroskaenc.c:2695
static void put_xiph_size(AVIOContext *pb, int size)
Definition: matroskaenc.c:385
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1470
Not part of ABI.
Definition: pixfmt.h:513
#define MATROSKA_ID_VIDEOPIXELWIDTH
Definition: matroska.h:114
int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len)
Definition: avc.c:108
#define MATROSKA_ID_TRACKAUDIO
Definition: matroska.h:82
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
int(* filler)(InterplayACMContext *s, unsigned ind, unsigned col)
Definition: interplayacm.c:407
AVIOContext * tags_bc
Definition: matroskaenc.c:123
const CodecTags ff_mkv_codec_tags[]
Definition: matroska.c:29
mkv_seekhead * seekhead
Definition: matroskaenc.c:136
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
static int ebml_id_size(uint32_t id)
Definition: matroskaenc.c:184
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
#define MATROSKA_ID_DISCARDPADDING
Definition: matroska.h:239
static void end_ebml_master_crc32(AVIOContext *pb, AVIOContext **dyn_cp, MatroskaMuxContext *mkv, uint32_t id)
Definition: matroskaenc.c:349
#define FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX
Tell ff_put_wav_header() to use WAVEFORMATEX even for PCM codecs.
Definition: riff.h:54
static int mkv_write_video_projection(AVFormatContext *s, AVIOContext *pb, AVStream *st)
Definition: matroskaenc.c:960
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:191
int avio_get_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition: aviobuf.c:1398
static uint8_t tmp[11]
Definition: aes_ctr.c:26