FFmpeg  4.2.2
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 = 1;
214  while ((num + 1) >> bytes * 7)
215  bytes++;
216  return bytes;
217 }
218 
219 /**
220  * Write a number in EBML variable length format.
221  *
222  * @param bytes The number of bytes that need to be used to write the number.
223  * If zero, any number of bytes can be used.
224  */
225 static void put_ebml_num(AVIOContext *pb, uint64_t num, int bytes)
226 {
227  int i, needed_bytes = ebml_num_size(num);
228 
229  // sizes larger than this are currently undefined in EBML
230  av_assert0(num < (1ULL << 56) - 1);
231 
232  if (bytes == 0)
233  // don't care how many bytes are used, so use the min
234  bytes = needed_bytes;
235  // the bytes needed to write the given size would exceed the bytes
236  // that we need to use, so write unknown size. This shouldn't happen.
237  av_assert0(bytes >= needed_bytes);
238 
239  num |= 1ULL << bytes * 7;
240  for (i = bytes - 1; i >= 0; i--)
241  avio_w8(pb, (uint8_t)(num >> i * 8));
242 }
243 
244 static void put_ebml_uint(AVIOContext *pb, uint32_t elementid, uint64_t val)
245 {
246  int i, bytes = 1;
247  uint64_t tmp = val;
248  while (tmp >>= 8)
249  bytes++;
250 
251  put_ebml_id(pb, elementid);
252  put_ebml_num(pb, bytes, 0);
253  for (i = bytes - 1; i >= 0; i--)
254  avio_w8(pb, (uint8_t)(val >> i * 8));
255 }
256 
257 static void put_ebml_sint(AVIOContext *pb, uint32_t elementid, int64_t val)
258 {
259  int i, bytes = 1;
260  uint64_t tmp = 2*(val < 0 ? val^-1 : val);
261 
262  while (tmp>>=8) bytes++;
263 
264  put_ebml_id(pb, elementid);
265  put_ebml_num(pb, bytes, 0);
266  for (i = bytes - 1; i >= 0; i--)
267  avio_w8(pb, (uint8_t)(val >> i * 8));
268 }
269 
270 static void put_ebml_float(AVIOContext *pb, uint32_t elementid, double val)
271 {
272  put_ebml_id(pb, elementid);
273  put_ebml_num(pb, 8, 0);
274  avio_wb64(pb, av_double2int(val));
275 }
276 
277 static void put_ebml_binary(AVIOContext *pb, uint32_t elementid,
278  const void *buf, int size)
279 {
280  put_ebml_id(pb, elementid);
281  put_ebml_num(pb, size, 0);
282  avio_write(pb, buf, size);
283 }
284 
285 static void put_ebml_string(AVIOContext *pb, uint32_t elementid,
286  const char *str)
287 {
288  put_ebml_binary(pb, elementid, str, strlen(str));
289 }
290 
291 /**
292  * Write a void element of a given size. Useful for reserving space in
293  * the file to be written to later.
294  *
295  * @param size The number of bytes to reserve, which must be at least 2.
296  */
297 static void put_ebml_void(AVIOContext *pb, uint64_t size)
298 {
299  int64_t currentpos = avio_tell(pb);
300 
301  av_assert0(size >= 2);
302 
304  // we need to subtract the length needed to store the size from the
305  // size we need to reserve so 2 cases, we use 8 bytes to store the
306  // size if possible, 1 byte otherwise
307  if (size < 10)
308  put_ebml_num(pb, size - 2, 0);
309  else
310  put_ebml_num(pb, size - 9, 8);
311  ffio_fill(pb, 0, currentpos + size - avio_tell(pb));
312 }
313 
314 static ebml_master start_ebml_master(AVIOContext *pb, uint32_t elementid,
315  uint64_t expectedsize)
316 {
317  int bytes = expectedsize ? ebml_num_size(expectedsize) : 8;
318 
319  put_ebml_id(pb, elementid);
320  put_ebml_size_unknown(pb, bytes);
321  return (ebml_master) { avio_tell(pb), bytes };
322 }
323 
325 {
326  int64_t pos = avio_tell(pb);
327 
328  if (avio_seek(pb, master.pos - master.sizebytes, SEEK_SET) < 0)
329  return;
330  put_ebml_num(pb, pos - master.pos, master.sizebytes);
331  avio_seek(pb, pos, SEEK_SET);
332 }
333 
335  uint32_t elementid)
336 {
337  int ret;
338 
339  if ((ret = avio_open_dyn_buf(dyn_cp)) < 0)
340  return ret;
341 
342  put_ebml_id(pb, elementid);
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 {
351  uint8_t *buf, crc[4];
352  int size, skip = 0;
353 
354  size = avio_close_dyn_buf(*dyn_cp, &buf);
355  put_ebml_num(pb, size, 0);
356  if (mkv->write_crc) {
357  skip = 6; /* Skip reserved 6-byte long void element from the dynamic buffer. */
358  AV_WL32(crc, av_crc(av_crc_get_table(AV_CRC_32_IEEE_LE), UINT32_MAX, buf + skip, size - skip) ^ UINT32_MAX);
359  put_ebml_binary(pb, EBML_ID_CRC32, crc, sizeof(crc));
360  }
361  avio_write(pb, buf + skip, size - skip);
362 
363  av_free(buf);
364  *dyn_cp = NULL;
365 }
366 
367 /**
368 * Complete ebml master without destroying the buffer, allowing for later updates
369 */
371  int64_t *pos)
372 {
373  uint8_t *buf;
374  int size = avio_get_dyn_buf(*dyn_cp, &buf);
375 
376  *pos = avio_tell(pb);
377 
378  put_ebml_num(pb, size, 0);
379  avio_write(pb, buf, size);
380 }
381 
382 static void put_xiph_size(AVIOContext *pb, int size)
383 {
384  ffio_fill(pb, 255, size / 255);
385  avio_w8(pb, size % 255);
386 }
387 
388 /**
389  * Free the members allocated in the mux context.
390  */
391 static void mkv_free(MatroskaMuxContext *mkv) {
392  uint8_t* buf;
393  if (mkv->cluster_bc) {
394  avio_close_dyn_buf(mkv->cluster_bc, &buf);
395  av_free(buf);
396  }
397  if (mkv->info_bc) {
398  avio_close_dyn_buf(mkv->info_bc, &buf);
399  av_free(buf);
400  }
401  if (mkv->tracks_bc) {
402  avio_close_dyn_buf(mkv->tracks_bc, &buf);
403  av_free(buf);
404  }
405  if (mkv->tags_bc) {
406  avio_close_dyn_buf(mkv->tags_bc, &buf);
407  av_free(buf);
408  }
409  if (mkv->seekhead) {
410  av_freep(&mkv->seekhead->entries);
411  av_freep(&mkv->seekhead);
412  }
413  if (mkv->cues) {
414  av_freep(&mkv->cues->entries);
415  av_freep(&mkv->cues);
416  }
417  if (mkv->attachments) {
418  av_freep(&mkv->attachments->entries);
419  av_freep(&mkv->attachments);
420  }
421  av_freep(&mkv->tracks);
422  av_freep(&mkv->stream_durations);
424 }
425 
426 /**
427  * Initialize a mkv_seekhead element to be ready to index level 1 Matroska
428  * elements. If a maximum number of elements is specified, enough space
429  * will be reserved at the current file location to write a seek head of
430  * that size.
431  *
432  * @param segment_offset The absolute offset to the position in the file
433  * where the segment begins.
434  * @param numelements The maximum number of elements that will be indexed
435  * by this seek head, 0 if unlimited.
436  */
437 static mkv_seekhead *mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset,
438  int numelements)
439 {
440  mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead));
441  if (!new_seekhead)
442  return NULL;
443 
444  new_seekhead->segment_offset = segment_offset;
445 
446  if (numelements > 0) {
447  new_seekhead->filepos = avio_tell(pb);
448  // 21 bytes max for a seek entry, 10 bytes max for the SeekHead ID
449  // and size, 6 bytes for a CRC32 element, and 3 bytes to guarantee
450  // that an EBML void element will fit afterwards
451  new_seekhead->reserved_size = numelements * MAX_SEEKENTRY_SIZE + 19;
452  new_seekhead->max_entries = numelements;
453  put_ebml_void(pb, new_seekhead->reserved_size);
454  }
455  return new_seekhead;
456 }
457 
458 static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, uint32_t elementid, uint64_t filepos)
459 {
460  mkv_seekhead_entry *entries = seekhead->entries;
461 
462  // don't store more elements than we reserved space for
463  if (seekhead->max_entries > 0 && seekhead->max_entries <= seekhead->num_entries)
464  return -1;
465 
466  entries = av_realloc_array(entries, seekhead->num_entries + 1, sizeof(mkv_seekhead_entry));
467  if (!entries)
468  return AVERROR(ENOMEM);
469  seekhead->entries = entries;
470 
471  seekhead->entries[seekhead->num_entries].elementid = elementid;
472  seekhead->entries[seekhead->num_entries++].segmentpos = filepos - seekhead->segment_offset;
473 
474  return 0;
475 }
476 
477 /**
478  * Write the seek head to the file and free it. If a maximum number of
479  * elements was specified to mkv_start_seekhead(), the seek head will
480  * be written at the location reserved for it. Otherwise, it is written
481  * at the current location in the file.
482  *
483  * @return The file offset where the seekhead was written,
484  * -1 if an error occurred.
485  */
487 {
488  AVIOContext *dyn_cp;
489  mkv_seekhead *seekhead = mkv->seekhead;
490  ebml_master seekentry;
491  int64_t currentpos;
492  int i;
493 
494  currentpos = avio_tell(pb);
495 
496  if (seekhead->reserved_size > 0) {
497  if (avio_seek(pb, seekhead->filepos, SEEK_SET) < 0) {
498  currentpos = -1;
499  goto fail;
500  }
501  }
502 
503  if (start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_SEEKHEAD) < 0) {
504  currentpos = -1;
505  goto fail;
506  }
507 
508  for (i = 0; i < seekhead->num_entries; i++) {
509  mkv_seekhead_entry *entry = &seekhead->entries[i];
510 
512 
514  put_ebml_num(dyn_cp, ebml_id_size(entry->elementid), 0);
515  put_ebml_id(dyn_cp, entry->elementid);
516 
518  end_ebml_master(dyn_cp, seekentry);
519  }
520  end_ebml_master_crc32(pb, &dyn_cp, mkv);
521 
522  if (seekhead->reserved_size > 0) {
523  uint64_t remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb);
524  put_ebml_void(pb, remaining);
525  avio_seek(pb, currentpos, SEEK_SET);
526 
527  currentpos = seekhead->filepos;
528  }
529 fail:
530  av_freep(&mkv->seekhead->entries);
531  av_freep(&mkv->seekhead);
532 
533  return currentpos;
534 }
535 
536 static mkv_cues *mkv_start_cues(int64_t segment_offset)
537 {
538  mkv_cues *cues = av_mallocz(sizeof(mkv_cues));
539  if (!cues)
540  return NULL;
541 
542  cues->segment_offset = segment_offset;
543  return cues;
544 }
545 
546 static int mkv_add_cuepoint(mkv_cues *cues, int stream, int tracknum, int64_t ts,
547  int64_t cluster_pos, int64_t relative_pos, int64_t duration)
548 {
549  mkv_cuepoint *entries = cues->entries;
550 
551  if (ts < 0)
552  return 0;
553 
554  entries = av_realloc_array(entries, cues->num_entries + 1, sizeof(mkv_cuepoint));
555  if (!entries)
556  return AVERROR(ENOMEM);
557  cues->entries = entries;
558 
559  cues->entries[cues->num_entries].pts = ts;
560  cues->entries[cues->num_entries].stream_idx = stream;
561  cues->entries[cues->num_entries].tracknum = tracknum;
562  cues->entries[cues->num_entries].cluster_pos = cluster_pos - cues->segment_offset;
563  cues->entries[cues->num_entries].relative_pos = relative_pos;
564  cues->entries[cues->num_entries++].duration = duration;
565 
566  return 0;
567 }
568 
569 static int64_t mkv_write_cues(AVFormatContext *s, mkv_cues *cues, mkv_track *tracks, int num_tracks)
570 {
571  MatroskaMuxContext *mkv = s->priv_data;
572  AVIOContext *dyn_cp, *pb = s->pb;
573  int64_t currentpos;
574  int i, j, ret;
575 
576  currentpos = avio_tell(pb);
577  ret = start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CUES);
578  if (ret < 0)
579  return ret;
580 
581  for (i = 0; i < cues->num_entries; i++) {
582  ebml_master cuepoint, track_positions;
583  mkv_cuepoint *entry = &cues->entries[i];
584  uint64_t pts = entry->pts;
585  int ctp_nb = 0;
586 
587  // Calculate the number of entries, so we know the element size
588  for (j = 0; j < num_tracks; j++)
589  tracks[j].has_cue = 0;
590  for (j = 0; j < cues->num_entries - i && entry[j].pts == pts; j++) {
591  int tracknum = entry[j].stream_idx;
592  av_assert0(tracknum>=0 && tracknum<num_tracks);
593  if (tracks[tracknum].has_cue && s->streams[tracknum]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
594  continue;
595  tracks[tracknum].has_cue = 1;
596  ctp_nb ++;
597  }
598 
600  put_ebml_uint(dyn_cp, MATROSKA_ID_CUETIME, pts);
601 
602  // put all the entries from different tracks that have the exact same
603  // timestamp into the same CuePoint
604  for (j = 0; j < num_tracks; j++)
605  tracks[j].has_cue = 0;
606  for (j = 0; j < cues->num_entries - i && entry[j].pts == pts; j++) {
607  int tracknum = entry[j].stream_idx;
608  av_assert0(tracknum>=0 && tracknum<num_tracks);
609  if (tracks[tracknum].has_cue && s->streams[tracknum]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
610  continue;
611  tracks[tracknum].has_cue = 1;
613  put_ebml_uint(dyn_cp, MATROSKA_ID_CUETRACK , entry[j].tracknum );
614  put_ebml_uint(dyn_cp, MATROSKA_ID_CUECLUSTERPOSITION , entry[j].cluster_pos);
615  put_ebml_uint(dyn_cp, MATROSKA_ID_CUERELATIVEPOSITION, entry[j].relative_pos);
616  if (entry[j].duration != -1)
617  put_ebml_uint(dyn_cp, MATROSKA_ID_CUEDURATION , entry[j].duration);
618  end_ebml_master(dyn_cp, track_positions);
619  }
620  i += j - 1;
621  end_ebml_master(dyn_cp, cuepoint);
622  }
623  end_ebml_master_crc32(pb, &dyn_cp, mkv);
624 
625  return currentpos;
626 }
627 
629 {
630  const uint8_t *header_start[3];
631  int header_len[3];
632  int first_header_size;
633  int j;
634 
635  if (par->codec_id == AV_CODEC_ID_VORBIS)
636  first_header_size = 30;
637  else
638  first_header_size = 42;
639 
641  first_header_size, header_start, header_len) < 0) {
642  av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n");
643  return -1;
644  }
645 
646  avio_w8(pb, 2); // number packets - 1
647  for (j = 0; j < 2; j++) {
648  put_xiph_size(pb, header_len[j]);
649  }
650  for (j = 0; j < 3; j++)
651  avio_write(pb, header_start[j], header_len[j]);
652 
653  return 0;
654 }
655 
657 {
658  if (par->extradata && par->extradata_size == 2)
659  avio_write(pb, par->extradata, 2);
660  else
661  avio_wl16(pb, 0x403); // fallback to the version mentioned in matroska specs
662  return 0;
663 }
664 
666  AVIOContext *pb, AVCodecParameters *par)
667 {
668  int write_comment = (par->channel_layout &&
669  !(par->channel_layout & ~0x3ffffULL) &&
671  int ret = ff_flac_write_header(pb, par->extradata, par->extradata_size,
672  !write_comment);
673 
674  if (ret < 0)
675  return ret;
676 
677  if (write_comment) {
678  const char *vendor = (s->flags & AVFMT_FLAG_BITEXACT) ?
679  "Lavf" : LIBAVFORMAT_IDENT;
680  AVDictionary *dict = NULL;
681  uint8_t buf[32], *data, *p;
682  int64_t len;
683 
684  snprintf(buf, sizeof(buf), "0x%"PRIx64, par->channel_layout);
685  av_dict_set(&dict, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", buf, 0);
686 
687  len = ff_vorbiscomment_length(dict, vendor, NULL, 0);
688  if (len >= ((1<<24) - 4)) {
689  av_dict_free(&dict);
690  return AVERROR(EINVAL);
691  }
692 
693  data = av_malloc(len + 4);
694  if (!data) {
695  av_dict_free(&dict);
696  return AVERROR(ENOMEM);
697  }
698 
699  data[0] = 0x84;
700  AV_WB24(data + 1, len);
701 
702  p = data + 4;
703  ff_vorbiscomment_write(&p, &dict, vendor, NULL, 0);
704 
705  avio_write(pb, data, len + 4);
706 
707  av_freep(&data);
708  av_dict_free(&dict);
709  }
710 
711  return 0;
712 }
713 
714 static int get_aac_sample_rates(AVFormatContext *s, uint8_t *extradata, int extradata_size,
715  int *sample_rate, int *output_sample_rate)
716 {
717  MPEG4AudioConfig mp4ac;
718  int ret;
719 
720  ret = avpriv_mpeg4audio_get_config(&mp4ac, extradata,
721  extradata_size * 8, 1);
722  /* Don't abort if the failure is because of missing extradata. Assume in that
723  * case a bitstream filter will provide the muxer with the extradata in the
724  * first packet.
725  * Abort however if s->pb is not seekable, as we would not be able to seek back
726  * to write the sample rate elements once the extradata shows up, anyway. */
727  if (ret < 0 && (extradata_size || !(s->pb->seekable & AVIO_SEEKABLE_NORMAL))) {
728  av_log(s, AV_LOG_ERROR,
729  "Error parsing AAC extradata, unable to determine samplerate.\n");
730  return AVERROR(EINVAL);
731  }
732 
733  if (ret < 0) {
734  /* This will only happen when this function is called while writing the
735  * header and no extradata is available. The space for this element has
736  * to be reserved for when this function is called again after the
737  * extradata shows up in the first packet, as there's no way to know if
738  * output_sample_rate will be different than sample_rate or not. */
739  *output_sample_rate = *sample_rate;
740  } else {
741  *sample_rate = mp4ac.sample_rate;
742  *output_sample_rate = mp4ac.ext_sample_rate;
743  }
744  return 0;
745 }
746 
748  AVCodecParameters *par,
749  AVIOContext *dyn_cp)
750 {
751  switch (par->codec_id) {
752  case AV_CODEC_ID_VORBIS:
753  case AV_CODEC_ID_THEORA:
754  return put_xiph_codecpriv(s, dyn_cp, par);
755  case AV_CODEC_ID_FLAC:
756  return put_flac_codecpriv(s, dyn_cp, par);
757  case AV_CODEC_ID_WAVPACK:
758  return put_wv_codecpriv(dyn_cp, par);
759  case AV_CODEC_ID_H264:
760  return ff_isom_write_avcc(dyn_cp, par->extradata,
761  par->extradata_size);
762  case AV_CODEC_ID_HEVC:
763  ff_isom_write_hvcc(dyn_cp, par->extradata,
764  par->extradata_size, 0);
765  return 0;
766  case AV_CODEC_ID_AV1:
767  if (par->extradata_size)
768  return ff_isom_write_av1c(dyn_cp, par->extradata,
769  par->extradata_size);
770  else
771  put_ebml_void(pb, 4 + 3);
772  break;
773  case AV_CODEC_ID_ALAC:
774  if (par->extradata_size < 36) {
775  av_log(s, AV_LOG_ERROR,
776  "Invalid extradata found, ALAC expects a 36-byte "
777  "QuickTime atom.");
778  return AVERROR_INVALIDDATA;
779  } else
780  avio_write(dyn_cp, par->extradata + 12,
781  par->extradata_size - 12);
782  break;
783  case AV_CODEC_ID_AAC:
784  if (par->extradata_size)
785  avio_write(dyn_cp, par->extradata, par->extradata_size);
786  else
787  put_ebml_void(pb, MAX_PCE_SIZE + 2 + 4);
788  break;
789  default:
790  if (par->codec_id == AV_CODEC_ID_PRORES &&
792  avio_wl32(dyn_cp, par->codec_tag);
793  } else if (par->extradata_size && par->codec_id != AV_CODEC_ID_TTA)
794  avio_write(dyn_cp, par->extradata, par->extradata_size);
795  }
796 
797  return 0;
798 }
799 
801  AVCodecParameters *par,
802  int native_id, int qt_id)
803 {
804  AVIOContext *dyn_cp;
805  uint8_t *codecpriv;
806  int ret, codecpriv_size;
807 
808  ret = avio_open_dyn_buf(&dyn_cp);
809  if (ret < 0)
810  return ret;
811 
812  if (native_id) {
813  ret = mkv_write_native_codecprivate(s, pb, par, dyn_cp);
814  } else if (par->codec_type == AVMEDIA_TYPE_VIDEO) {
815  if (qt_id) {
816  if (!par->codec_tag)
818  par->codec_id);
821  ) {
822  int i;
823  avio_wb32(dyn_cp, 0x5a + par->extradata_size);
824  avio_wl32(dyn_cp, par->codec_tag);
825  for(i = 0; i < 0x5a - 8; i++)
826  avio_w8(dyn_cp, 0);
827  }
828  avio_write(dyn_cp, par->extradata, par->extradata_size);
829  } else {
831  av_log(s, AV_LOG_WARNING, "codec %s is not supported by this format\n",
832  avcodec_get_name(par->codec_id));
833 
834  if (!par->codec_tag)
836  par->codec_id);
837  if (!par->codec_tag && par->codec_id != AV_CODEC_ID_RAWVIDEO) {
838  av_log(s, AV_LOG_ERROR, "No bmp codec tag found for codec %s\n",
839  avcodec_get_name(par->codec_id));
840  ret = AVERROR(EINVAL);
841  }
842 
843  ff_put_bmp_header(dyn_cp, par, 0, 0);
844  }
845  } else if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
846  unsigned int tag;
848  if (!tag) {
849  av_log(s, AV_LOG_ERROR, "No wav codec tag found for codec %s\n",
850  avcodec_get_name(par->codec_id));
851  ret = AVERROR(EINVAL);
852  }
853  if (!par->codec_tag)
854  par->codec_tag = tag;
855 
857  }
858 
859  codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv);
860  if (codecpriv_size)
862  codecpriv_size);
863  av_free(codecpriv);
864  return ret;
865 }
866 
868  AVIOContext *dyn_cp;
869  uint8_t *colorinfo_ptr;
870  int side_data_size = 0;
871  int ret, colorinfo_size;
872  const uint8_t *side_data;
873 
874  ret = avio_open_dyn_buf(&dyn_cp);
875  if (ret < 0)
876  return ret;
877 
878  if (par->color_trc != AVCOL_TRC_UNSPECIFIED &&
879  par->color_trc < AVCOL_TRC_NB) {
881  par->color_trc);
882  }
883  if (par->color_space != AVCOL_SPC_UNSPECIFIED &&
884  par->color_space < AVCOL_SPC_NB) {
886  }
888  par->color_primaries < AVCOL_PRI_NB) {
890  }
891  if (par->color_range != AVCOL_RANGE_UNSPECIFIED &&
892  par->color_range < AVCOL_RANGE_NB) {
894  }
897  int xpos, ypos;
898 
899  avcodec_enum_to_chroma_pos(&xpos, &ypos, par->chroma_location);
900  put_ebml_uint(dyn_cp, MATROSKA_ID_VIDEOCOLORCHROMASITINGHORZ, (xpos >> 7) + 1);
901  put_ebml_uint(dyn_cp, MATROSKA_ID_VIDEOCOLORCHROMASITINGVERT, (ypos >> 7) + 1);
902  }
903 
905  &side_data_size);
906  if (side_data_size) {
907  const AVContentLightMetadata *metadata =
908  (const AVContentLightMetadata*)side_data;
911  }
912 
914  &side_data_size);
915  if (side_data_size == sizeof(AVMasteringDisplayMetadata)) {
916  ebml_master meta_element = start_ebml_master(
918  const AVMasteringDisplayMetadata *metadata =
919  (const AVMasteringDisplayMetadata*)side_data;
920  if (metadata->has_primaries) {
922  av_q2d(metadata->display_primaries[0][0]));
924  av_q2d(metadata->display_primaries[0][1]));
926  av_q2d(metadata->display_primaries[1][0]));
928  av_q2d(metadata->display_primaries[1][1]));
930  av_q2d(metadata->display_primaries[2][0]));
932  av_q2d(metadata->display_primaries[2][1]));
934  av_q2d(metadata->white_point[0]));
936  av_q2d(metadata->white_point[1]));
937  }
938  if (metadata->has_luminance) {
940  av_q2d(metadata->max_luminance));
942  av_q2d(metadata->min_luminance));
943  }
944  end_ebml_master(dyn_cp, meta_element);
945  }
946 
947  colorinfo_size = avio_close_dyn_buf(dyn_cp, &colorinfo_ptr);
948  if (colorinfo_size) {
949  ebml_master colorinfo = start_ebml_master(pb, MATROSKA_ID_VIDEOCOLOR, colorinfo_size);
950  avio_write(pb, colorinfo_ptr, colorinfo_size);
951  end_ebml_master(pb, colorinfo);
952  }
953  av_free(colorinfo_ptr);
954  return 0;
955 }
956 
958  AVStream *st)
959 {
960  AVIOContext b;
961  AVIOContext *dyn_cp;
962  int side_data_size = 0;
963  int ret, projection_size;
964  uint8_t *projection_ptr;
965  uint8_t private[20];
966 
967  const AVSphericalMapping *spherical =
969  &side_data_size);
970 
971  if (!side_data_size)
972  return 0;
973 
974  ret = avio_open_dyn_buf(&dyn_cp);
975  if (ret < 0)
976  return ret;
977 
978  switch (spherical->projection) {
982  break;
984  ffio_init_context(&b, private, 20, 1, NULL, NULL, NULL, NULL);
987  avio_wb32(&b, 0); // version + flags
988  avio_wb32(&b, spherical->bound_top);
989  avio_wb32(&b, spherical->bound_bottom);
990  avio_wb32(&b, spherical->bound_left);
991  avio_wb32(&b, spherical->bound_right);
993  private, avio_tell(&b));
994  break;
996  ffio_init_context(&b, private, 12, 1, NULL, NULL, NULL, NULL);
999  avio_wb32(&b, 0); // version + flags
1000  avio_wb32(&b, 0); // layout
1001  avio_wb32(&b, spherical->padding);
1003  private, avio_tell(&b));
1004  break;
1005  default:
1006  av_log(s, AV_LOG_WARNING, "Unknown projection type\n");
1007  goto end;
1008  }
1009 
1010  if (spherical->yaw)
1012  (double) spherical->yaw / (1 << 16));
1013  if (spherical->pitch)
1015  (double) spherical->pitch / (1 << 16));
1016  if (spherical->roll)
1018  (double) spherical->roll / (1 << 16));
1019 
1020 end:
1021  projection_size = avio_close_dyn_buf(dyn_cp, &projection_ptr);
1022  if (projection_size) {
1023  ebml_master projection = start_ebml_master(pb,
1025  projection_size);
1026  avio_write(pb, projection_ptr, projection_size);
1027  end_ebml_master(pb, projection);
1028  }
1029  av_freep(&projection_ptr);
1030 
1031  return 0;
1032 }
1033 
1035  enum AVFieldOrder field_order)
1036 {
1037  switch (field_order) {
1038  case AV_FIELD_UNKNOWN:
1039  break;
1040  case AV_FIELD_PROGRESSIVE:
1043  break;
1044  case AV_FIELD_TT:
1045  case AV_FIELD_BB:
1046  case AV_FIELD_TB:
1047  case AV_FIELD_BT:
1050  if (mode != MODE_WEBM) {
1051  switch (field_order) {
1052  case AV_FIELD_TT:
1055  break;
1056  case AV_FIELD_BB:
1059  break;
1060  case AV_FIELD_TB:
1063  break;
1064  case AV_FIELD_BT:
1067  break;
1068  }
1069  }
1070  }
1071 }
1072 
1074  AVStream *st, int mode, int *h_width, int *h_height)
1075 {
1076  int i;
1077  int ret = 0;
1080 
1081  *h_width = 1;
1082  *h_height = 1;
1083  // convert metadata into proper side data and add it to the stream
1084  if ((tag = av_dict_get(st->metadata, "stereo_mode", NULL, 0)) ||
1085  (tag = av_dict_get( s->metadata, "stereo_mode", NULL, 0))) {
1086  int stereo_mode = atoi(tag->value);
1087 
1088  for (i=0; i<MATROSKA_VIDEO_STEREOMODE_TYPE_NB; i++)
1089  if (!strcmp(tag->value, ff_matroska_video_stereo_mode[i])){
1090  stereo_mode = i;
1091  break;
1092  }
1093 
1094  if (stereo_mode < MATROSKA_VIDEO_STEREOMODE_TYPE_NB &&
1095  stereo_mode != 10 && stereo_mode != 12) {
1096  int ret = ff_mkv_stereo3d_conv(st, stereo_mode);
1097  if (ret < 0)
1098  return ret;
1099  }
1100  }
1101 
1102  // iterate to find the stereo3d side data
1103  for (i = 0; i < st->nb_side_data; i++) {
1104  AVPacketSideData sd = st->side_data[i];
1105  if (sd.type == AV_PKT_DATA_STEREO3D) {
1106  AVStereo3D *stereo = (AVStereo3D *)sd.data;
1107 
1108  switch (stereo->type) {
1109  case AV_STEREO3D_2D:
1111  break;
1113  format = (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1116  *h_width = 2;
1117  break;
1118  case AV_STEREO3D_TOPBOTTOM:
1120  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1121  format--;
1122  *h_height = 2;
1123  break;
1126  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1127  format--;
1128  break;
1129  case AV_STEREO3D_LINES:
1131  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1132  format--;
1133  *h_height = 2;
1134  break;
1135  case AV_STEREO3D_COLUMNS:
1137  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1138  format--;
1139  *h_width = 2;
1140  break;
1143  if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
1144  format++;
1145  break;
1146  }
1147  break;
1148  }
1149  }
1150 
1151  if (format == MATROSKA_VIDEO_STEREOMODE_TYPE_NB)
1152  return ret;
1153 
1154  // if webm, do not write unsupported modes
1155  if ((mode == MODE_WEBM &&
1158  || format >= MATROSKA_VIDEO_STEREOMODE_TYPE_NB) {
1159  av_log(s, AV_LOG_ERROR,
1160  "The specified stereo mode is not valid.\n");
1162  return AVERROR(EINVAL);
1163  }
1164 
1165  // write StereoMode if format is valid
1167 
1168  return ret;
1169 }
1170 
1172  int i, AVIOContext *pb, int default_stream_exists)
1173 {
1174  AVStream *st = s->streams[i];
1175  AVCodecParameters *par = st->codecpar;
1176  ebml_master subinfo, track;
1177  int native_id = 0;
1178  int qt_id = 0;
1180  int sample_rate = par->sample_rate;
1181  int output_sample_rate = 0;
1182  int display_width_div = 1;
1183  int display_height_div = 1;
1184  int j, ret;
1186 
1187  if (par->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
1188  mkv->have_attachments = 1;
1189  return 0;
1190  }
1191 
1192  if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
1193  if (!bit_depth && par->codec_id != AV_CODEC_ID_ADPCM_G726) {
1194  if (par->bits_per_raw_sample)
1195  bit_depth = par->bits_per_raw_sample;
1196  else
1197  bit_depth = av_get_bytes_per_sample(par->format) << 3;
1198  }
1199  if (!bit_depth)
1200  bit_depth = par->bits_per_coded_sample;
1201  }
1202 
1203  if (par->codec_id == AV_CODEC_ID_AAC) {
1204  ret = get_aac_sample_rates(s, par->extradata, par->extradata_size, &sample_rate,
1205  &output_sample_rate);
1206  if (ret < 0)
1207  return ret;
1208  }
1209 
1210  track = start_ebml_master(pb, MATROSKA_ID_TRACKENTRY, 0);
1212  mkv->is_dash ? mkv->dash_track_number : i + 1);
1214  mkv->is_dash ? mkv->dash_track_number : i + 1);
1215  put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet)
1216 
1217  if ((tag = av_dict_get(st->metadata, "title", NULL, 0)))
1219  tag = av_dict_get(st->metadata, "language", NULL, 0);
1220  if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT) {
1221  put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag && tag->value ? tag->value:"und");
1222  } else if (tag && tag->value) {
1224  }
1225 
1226  // The default value for TRACKFLAGDEFAULT is 1, so add element
1227  // if we need to clear it.
1228  if (default_stream_exists && !(st->disposition & AV_DISPOSITION_DEFAULT))
1230 
1233 
1234  if (mkv->mode == MODE_WEBM) {
1235  const char *codec_id;
1236  if (par->codec_type != AVMEDIA_TYPE_SUBTITLE) {
1237  for (j = 0; ff_webm_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
1238  if (ff_webm_codec_tags[j].id == par->codec_id) {
1239  codec_id = ff_webm_codec_tags[j].str;
1240  native_id = 1;
1241  break;
1242  }
1243  }
1244  } else if (par->codec_id == AV_CODEC_ID_WEBVTT) {
1246  codec_id = "D_WEBVTT/CAPTIONS";
1247  native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
1248  } else if (st->disposition & AV_DISPOSITION_DESCRIPTIONS) {
1249  codec_id = "D_WEBVTT/DESCRIPTIONS";
1250  native_id = MATROSKA_TRACK_TYPE_METADATA;
1251  } else if (st->disposition & AV_DISPOSITION_METADATA) {
1252  codec_id = "D_WEBVTT/METADATA";
1253  native_id = MATROSKA_TRACK_TYPE_METADATA;
1254  } else {
1255  codec_id = "D_WEBVTT/SUBTITLES";
1256  native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
1257  }
1258  }
1259 
1260  if (!native_id) {
1261  av_log(s, AV_LOG_ERROR,
1262  "Only VP8 or VP9 or AV1 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM.\n");
1263  return AVERROR(EINVAL);
1264  }
1265 
1266  put_ebml_string(pb, MATROSKA_ID_CODECID, codec_id);
1267  } else {
1268  // look for a codec ID string specific to mkv to use,
1269  // if none are found, use AVI codes
1270  if (par->codec_id != AV_CODEC_ID_RAWVIDEO || par->codec_tag) {
1271  for (j = 0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++) {
1272  if (ff_mkv_codec_tags[j].id == par->codec_id && par->codec_id != AV_CODEC_ID_FFV1) {
1274  native_id = 1;
1275  break;
1276  }
1277  }
1278  } else {
1279  if (mkv->allow_raw_vfw) {
1280  native_id = 0;
1281  } else {
1282  av_log(s, AV_LOG_ERROR, "Raw RGB is not supported Natively in Matroska, you can use AVI or NUT or\n"
1283  "If you would like to store it anyway using VFW mode, enable allow_raw_vfw (-allow_raw_vfw 1)\n");
1284  return AVERROR(EINVAL);
1285  }
1286  }
1287  }
1288 
1289  if (par->codec_type == AVMEDIA_TYPE_AUDIO && par->initial_padding && par->codec_id == AV_CODEC_ID_OPUS) {
1290  int64_t codecdelay = av_rescale_q(par->initial_padding,
1291  (AVRational){ 1, 48000 },
1292  (AVRational){ 1, 1000000000 });
1293  if (codecdelay < 0) {
1294  av_log(s, AV_LOG_ERROR, "Initial padding is invalid\n");
1295  return AVERROR(EINVAL);
1296  }
1297 // mkv->tracks[i].ts_offset = av_rescale_q(par->initial_padding,
1298 // (AVRational){ 1, par->sample_rate },
1299 // st->time_base);
1300 
1301  put_ebml_uint(pb, MATROSKA_ID_CODECDELAY, codecdelay);
1302  }
1303  if (par->codec_id == AV_CODEC_ID_OPUS) {
1305  }
1306 
1307  switch (par->codec_type) {
1308  case AVMEDIA_TYPE_VIDEO:
1309  mkv->have_video = 1;
1311 
1312  if( st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0
1313  && av_cmp_q(av_inv_q(st->avg_frame_rate), st->time_base) > 0)
1315 
1316  if (!native_id &&
1319  par->codec_id == AV_CODEC_ID_SVQ1 ||
1320  par->codec_id == AV_CODEC_ID_SVQ3 ||
1321  par->codec_id == AV_CODEC_ID_CINEPAK))
1322  qt_id = 1;
1323 
1324  if (qt_id)
1325  put_ebml_string(pb, MATROSKA_ID_CODECID, "V_QUICKTIME");
1326  else if (!native_id) {
1327  // if there is no mkv-specific codec ID, use VFW mode
1328  put_ebml_string(pb, MATROSKA_ID_CODECID, "V_MS/VFW/FOURCC");
1329  mkv->tracks[i].write_dts = 1;
1331  }
1332 
1333  subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0);
1334 
1337 
1338  mkv_write_field_order(pb, mkv->mode, par->field_order);
1339 
1340  // check both side data and metadata for stereo information,
1341  // write the result to the bitstream if any is found
1342  ret = mkv_write_stereo_mode(s, pb, st, mkv->mode,
1343  &display_width_div,
1344  &display_height_div);
1345  if (ret < 0)
1346  return ret;
1347 
1348  if (((tag = av_dict_get(st->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||
1349  ((tag = av_dict_get( s->metadata, "alpha_mode", NULL, 0)) && atoi(tag->value)) ||
1350  (par->format == AV_PIX_FMT_YUVA420P)) {
1352  }
1353 
1354  // write DisplayWidth and DisplayHeight, they contain the size of
1355  // a single source view and/or the display aspect ratio
1356  if (st->sample_aspect_ratio.num) {
1357  int64_t d_width = av_rescale(par->width, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
1358  if (d_width > INT_MAX) {
1359  av_log(s, AV_LOG_ERROR, "Overflow in display width\n");
1360  return AVERROR(EINVAL);
1361  }
1362  if (d_width != par->width || display_width_div != 1 || display_height_div != 1) {
1363  if (mkv->mode == MODE_WEBM || display_width_div != 1 || display_height_div != 1) {
1364  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width / display_width_div);
1365  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, par->height / display_height_div);
1366  } else {
1367  AVRational display_aspect_ratio;
1368  av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
1369  par->width * (int64_t)st->sample_aspect_ratio.num,
1370  par->height * (int64_t)st->sample_aspect_ratio.den,
1371  1024 * 1024);
1372  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH, display_aspect_ratio.num);
1373  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, display_aspect_ratio.den);
1375  }
1376  }
1377  } else if (display_width_div != 1 || display_height_div != 1) {
1378  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , par->width / display_width_div);
1379  put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, par->height / display_height_div);
1380  } else if (mkv->mode != MODE_WEBM)
1382 
1383  if (par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1384  uint32_t color_space = av_le2ne32(par->codec_tag);
1385  put_ebml_binary(pb, MATROSKA_ID_VIDEOCOLORSPACE, &color_space, sizeof(color_space));
1386  }
1387  ret = mkv_write_video_color(pb, par, st);
1388  if (ret < 0)
1389  return ret;
1390  ret = mkv_write_video_projection(s, pb, st);
1391  if (ret < 0)
1392  return ret;
1393  end_ebml_master(pb, subinfo);
1394  break;
1395 
1396  case AVMEDIA_TYPE_AUDIO:
1398 
1399  if (!native_id)
1400  // no mkv-specific ID, use ACM mode
1401  put_ebml_string(pb, MATROSKA_ID_CODECID, "A_MS/ACM");
1402 
1403  subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKAUDIO, 0);
1405 
1406  mkv->tracks[i].sample_rate_offset = avio_tell(pb);
1407  put_ebml_float (pb, MATROSKA_ID_AUDIOSAMPLINGFREQ, sample_rate);
1408  if (output_sample_rate)
1409  put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
1410  if (bit_depth)
1411  put_ebml_uint(pb, MATROSKA_ID_AUDIOBITDEPTH, bit_depth);
1412  end_ebml_master(pb, subinfo);
1413  break;
1414 
1415  case AVMEDIA_TYPE_SUBTITLE:
1416  if (!native_id) {
1417  av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", par->codec_id);
1418  return AVERROR(ENOSYS);
1419  }
1420 
1421  if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT)
1422  native_id = MATROSKA_TRACK_TYPE_SUBTITLE;
1423 
1424  put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, native_id);
1425  break;
1426  default:
1427  av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n");
1428  return AVERROR(EINVAL);
1429  }
1430 
1431  if (mkv->mode != MODE_WEBM || par->codec_id != AV_CODEC_ID_WEBVTT) {
1432  mkv->tracks[i].codecpriv_offset = avio_tell(pb);
1433  ret = mkv_write_codecprivate(s, pb, par, native_id, qt_id);
1434  if (ret < 0)
1435  return ret;
1436  }
1437 
1438  end_ebml_master(pb, track);
1439 
1440  return 0;
1441 }
1442 
1444 {
1445  MatroskaMuxContext *mkv = s->priv_data;
1446  AVIOContext *pb = s->pb;
1447  int i, ret, default_stream_exists = 0;
1448 
1450  if (ret < 0)
1451  return ret;
1452 
1453  ret = start_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS);
1454  if (ret < 0)
1455  return ret;
1456 
1457  for (i = 0; i < s->nb_streams; i++) {
1458  AVStream *st = s->streams[i];
1459  default_stream_exists |= st->disposition & AV_DISPOSITION_DEFAULT;
1460  }
1461  for (i = 0; i < s->nb_streams; i++) {
1462  ret = mkv_write_track(s, mkv, i, mkv->tracks_bc, default_stream_exists);
1463  if (ret < 0)
1464  return ret;
1465  }
1466 
1467  if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1469  else
1470  end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv);
1471 
1472  return 0;
1473 }
1474 
1476 {
1477  MatroskaMuxContext *mkv = s->priv_data;
1478  AVIOContext *dyn_cp, *pb = s->pb;
1479  ebml_master editionentry;
1480  AVRational scale = {1, 1E9};
1481  int i, ret;
1482 
1483  if (!s->nb_chapters || mkv->wrote_chapters)
1484  return 0;
1485 
1487  if (ret < 0) return ret;
1488 
1489  ret = start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CHAPTERS);
1490  if (ret < 0) return ret;
1491 
1492  editionentry = start_ebml_master(dyn_cp, MATROSKA_ID_EDITIONENTRY, 0);
1493  if (mkv->mode != MODE_WEBM) {
1496  }
1497  for (i = 0; i < s->nb_chapters; i++) {
1498  ebml_master chapteratom, chapterdisplay;
1499  AVChapter *c = s->chapters[i];
1500  int64_t chapterstart = av_rescale_q(c->start, c->time_base, scale);
1501  int64_t chapterend = av_rescale_q(c->end, c->time_base, scale);
1502  AVDictionaryEntry *t = NULL;
1503  if (chapterstart < 0 || chapterstart > chapterend || chapterend < 0) {
1504  av_log(s, AV_LOG_ERROR,
1505  "Invalid chapter start (%"PRId64") or end (%"PRId64").\n",
1506  chapterstart, chapterend);
1507  return AVERROR_INVALIDDATA;
1508  }
1509 
1510  chapteratom = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERATOM, 0);
1512  put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
1513  put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMEEND, chapterend);
1514  if (mkv->mode != MODE_WEBM) {
1517  }
1518  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1519  chapterdisplay = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERDISPLAY, 0);
1521  put_ebml_string(dyn_cp, MATROSKA_ID_CHAPLANG , "und");
1522  end_ebml_master(dyn_cp, chapterdisplay);
1523  }
1524  end_ebml_master(dyn_cp, chapteratom);
1525  }
1526  end_ebml_master(dyn_cp, editionentry);
1527  end_ebml_master_crc32(pb, &dyn_cp, mkv);
1528 
1529  mkv->wrote_chapters = 1;
1530  return 0;
1531 }
1532 
1534 {
1535  uint8_t *key = av_strdup(t->key);
1536  uint8_t *p = key;
1537  const uint8_t *lang = NULL;
1538  ebml_master tag;
1539 
1540  if (!key)
1541  return AVERROR(ENOMEM);
1542 
1543  if ((p = strrchr(p, '-')) &&
1544  (lang = ff_convert_lang_to(p + 1, AV_LANG_ISO639_2_BIBL)))
1545  *p = 0;
1546 
1547  p = key;
1548  while (*p) {
1549  if (*p == ' ')
1550  *p = '_';
1551  else if (*p >= 'a' && *p <= 'z')
1552  *p -= 'a' - 'A';
1553  p++;
1554  }
1555 
1558  if (lang)
1561  end_ebml_master(pb, tag);
1562 
1563  av_freep(&key);
1564  return 0;
1565 }
1566 
1567 static int mkv_write_tag_targets(AVFormatContext *s, uint32_t elementid,
1568  unsigned int uid, ebml_master *tag)
1569 {
1570  AVIOContext *pb;
1571  MatroskaMuxContext *mkv = s->priv_data;
1572  ebml_master targets;
1573  int ret;
1574 
1575  if (!mkv->tags_bc) {
1577  if (ret < 0) return ret;
1578 
1580  }
1581  pb = mkv->tags_bc;
1582 
1583  *tag = start_ebml_master(pb, MATROSKA_ID_TAG, 0);
1584  targets = start_ebml_master(pb, MATROSKA_ID_TAGTARGETS, 0);
1585  if (elementid)
1586  put_ebml_uint(pb, elementid, uid);
1587  end_ebml_master(pb, targets);
1588  return 0;
1589 }
1590 
1591 static int mkv_check_tag_name(const char *name, uint32_t elementid)
1592 {
1593  return av_strcasecmp(name, "title") &&
1594  av_strcasecmp(name, "stereo_mode") &&
1595  av_strcasecmp(name, "creation_time") &&
1596  av_strcasecmp(name, "encoding_tool") &&
1597  av_strcasecmp(name, "duration") &&
1598  (elementid != MATROSKA_ID_TAGTARGETS_TRACKUID ||
1599  av_strcasecmp(name, "language")) &&
1600  (elementid != MATROSKA_ID_TAGTARGETS_ATTACHUID ||
1601  (av_strcasecmp(name, "filename") &&
1602  av_strcasecmp(name, "mimetype")));
1603 }
1604 
1605 static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, uint32_t elementid,
1606  unsigned int uid)
1607 {
1608  MatroskaMuxContext *mkv = s->priv_data;
1609  ebml_master tag;
1610  int ret;
1611  AVDictionaryEntry *t = NULL;
1612 
1613  ret = mkv_write_tag_targets(s, elementid, uid, &tag);
1614  if (ret < 0)
1615  return ret;
1616 
1617  while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) {
1618  if (mkv_check_tag_name(t->key, elementid)) {
1619  ret = mkv_write_simpletag(mkv->tags_bc, t);
1620  if (ret < 0)
1621  return ret;
1622  }
1623  }
1624 
1625  end_ebml_master(mkv->tags_bc, tag);
1626  return 0;
1627 }
1628 
1629 static int mkv_check_tag(AVDictionary *m, uint32_t elementid)
1630 {
1631  AVDictionaryEntry *t = NULL;
1632 
1633  while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX)))
1634  if (mkv_check_tag_name(t->key, elementid))
1635  return 1;
1636 
1637  return 0;
1638 }
1639 
1641 {
1642  MatroskaMuxContext *mkv = s->priv_data;
1643  int i, ret;
1644 
1646 
1647  if (mkv_check_tag(s->metadata, 0)) {
1648  ret = mkv_write_tag(s, s->metadata, 0, 0);
1649  if (ret < 0) return ret;
1650  }
1651 
1652  for (i = 0; i < s->nb_streams; i++) {
1653  AVStream *st = s->streams[i];
1654 
1656  continue;
1657 
1659  continue;
1660 
1662  if (ret < 0) return ret;
1663  }
1664 
1665  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
1666  for (i = 0; i < s->nb_streams; i++) {
1667  AVIOContext *pb;
1668  AVStream *st = s->streams[i];
1669  ebml_master tag_target;
1670  ebml_master tag;
1671 
1673  continue;
1674 
1676  pb = mkv->tags_bc;
1677 
1679  put_ebml_string(pb, MATROSKA_ID_TAGNAME, "DURATION");
1680  mkv->stream_duration_offsets[i] = avio_tell(pb);
1681 
1682  // Reserve space to write duration as a 20-byte string.
1683  // 2 (ebml id) + 1 (data size) + 20 (data)
1684  put_ebml_void(pb, 23);
1685  end_ebml_master(pb, tag);
1686  end_ebml_master(pb, tag_target);
1687  }
1688  }
1689 
1690  if (mkv->mode != MODE_WEBM) {
1691  for (i = 0; i < s->nb_chapters; i++) {
1692  AVChapter *ch = s->chapters[i];
1693 
1695  continue;
1696 
1698  if (ret < 0)
1699  return ret;
1700  }
1701  }
1702 
1703  if (mkv->have_attachments && mkv->mode != MODE_WEBM) {
1704  for (i = 0; i < mkv->attachments->num_entries; i++) {
1705  mkv_attachment *attachment = &mkv->attachments->entries[i];
1706  AVStream *st = s->streams[attachment->stream_idx];
1707 
1709  continue;
1710 
1711  ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_ATTACHUID, attachment->fileuid);
1712  if (ret < 0)
1713  return ret;
1714  }
1715  }
1716 
1717  if (mkv->tags_bc) {
1718  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1719  end_ebml_master_crc32_preliminary(s->pb, &mkv->tags_bc, mkv, &mkv->tags_pos);
1720  else
1721  end_ebml_master_crc32(s->pb, &mkv->tags_bc, mkv);
1722  }
1723  return 0;
1724 }
1725 
1727 {
1728  MatroskaMuxContext *mkv = s->priv_data;
1729  AVIOContext *dyn_cp, *pb = s->pb;
1730  AVLFG c;
1731  int i, ret;
1732 
1733  if (!mkv->have_attachments)
1734  return 0;
1735 
1736  mkv->attachments = av_mallocz(sizeof(*mkv->attachments));
1737  if (!mkv->attachments)
1738  return AVERROR(ENOMEM);
1739 
1741 
1743  if (ret < 0) return ret;
1744 
1745  ret = start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_ATTACHMENTS);
1746  if (ret < 0) return ret;
1747 
1748  for (i = 0; i < s->nb_streams; i++) {
1749  AVStream *st = s->streams[i];
1750  ebml_master attached_file;
1751  mkv_attachment *attachment = mkv->attachments->entries;
1752  AVDictionaryEntry *t;
1753  const char *mimetype = NULL;
1754  uint32_t fileuid;
1755 
1757  continue;
1758 
1759  attachment = av_realloc_array(attachment, mkv->attachments->num_entries + 1, sizeof(mkv_attachment));
1760  if (!attachment)
1761  return AVERROR(ENOMEM);
1762  mkv->attachments->entries = attachment;
1763 
1764  attached_file = start_ebml_master(dyn_cp, MATROSKA_ID_ATTACHEDFILE, 0);
1765 
1766  if (t = av_dict_get(st->metadata, "title", NULL, 0))
1768  if (!(t = av_dict_get(st->metadata, "filename", NULL, 0))) {
1769  av_log(s, AV_LOG_ERROR, "Attachment stream %d has no filename tag.\n", i);
1770  return AVERROR(EINVAL);
1771  }
1773  if (t = av_dict_get(st->metadata, "mimetype", NULL, 0))
1774  mimetype = t->value;
1775  else if (st->codecpar->codec_id != AV_CODEC_ID_NONE ) {
1776  int i;
1777  for (i = 0; ff_mkv_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
1778  if (ff_mkv_mime_tags[i].id == st->codecpar->codec_id) {
1779  mimetype = ff_mkv_mime_tags[i].str;
1780  break;
1781  }
1782  for (i = 0; ff_mkv_image_mime_tags[i].id != AV_CODEC_ID_NONE; i++)
1783  if (ff_mkv_image_mime_tags[i].id == st->codecpar->codec_id) {
1784  mimetype = ff_mkv_image_mime_tags[i].str;
1785  break;
1786  }
1787  }
1788  if (!mimetype) {
1789  av_log(s, AV_LOG_ERROR, "Attachment stream %d has no mimetype tag and "
1790  "it cannot be deduced from the codec id.\n", i);
1791  return AVERROR(EINVAL);
1792  }
1793 
1794  if (s->flags & AVFMT_FLAG_BITEXACT) {
1795  struct AVSHA *sha = av_sha_alloc();
1796  uint8_t digest[20];
1797  if (!sha)
1798  return AVERROR(ENOMEM);
1799  av_sha_init(sha, 160);
1801  av_sha_final(sha, digest);
1802  av_free(sha);
1803  fileuid = AV_RL32(digest);
1804  } else {
1805  fileuid = av_lfg_get(&c);
1806  }
1807  av_log(s, AV_LOG_VERBOSE, "Using %.8"PRIx32" for attachment %d\n",
1808  fileuid, mkv->attachments->num_entries);
1809 
1810  put_ebml_string(dyn_cp, MATROSKA_ID_FILEMIMETYPE, mimetype);
1812  put_ebml_uint(dyn_cp, MATROSKA_ID_FILEUID, fileuid);
1813  end_ebml_master(dyn_cp, attached_file);
1814 
1816  mkv->attachments->entries[mkv->attachments->num_entries++].fileuid = fileuid;
1817  }
1818  end_ebml_master_crc32(pb, &dyn_cp, mkv);
1819 
1820  return 0;
1821 }
1822 
1824 {
1825  int i = 0;
1826  int64_t max = 0;
1827  int64_t us;
1828 
1829  AVDictionaryEntry *explicitDuration = av_dict_get(s->metadata, "DURATION", NULL, 0);
1830  if (explicitDuration && (av_parse_time(&us, explicitDuration->value, 1) == 0) && us > 0) {
1831  av_log(s, AV_LOG_DEBUG, "get_metadata_duration found duration in context metadata: %" PRId64 "\n", us);
1832  return us;
1833  }
1834 
1835  for (i = 0; i < s->nb_streams; i++) {
1836  int64_t us;
1837  AVDictionaryEntry *duration = av_dict_get(s->streams[i]->metadata, "DURATION", NULL, 0);
1838 
1839  if (duration && (av_parse_time(&us, duration->value, 1) == 0))
1840  max = FFMAX(max, us);
1841  }
1842 
1843  av_log(s, AV_LOG_DEBUG, "get_metadata_duration returned: %" PRId64 "\n", max);
1844  return max;
1845 }
1846 
1848 {
1849  MatroskaMuxContext *mkv = s->priv_data;
1850  AVIOContext *pb = s->pb;
1853  int ret, i, version = 2;
1854  int64_t creation_time;
1855 
1856  if (!strcmp(s->oformat->name, "webm")) {
1857  mkv->mode = MODE_WEBM;
1858  mkv->write_crc = 0;
1859  } else
1860  mkv->mode = MODE_MATROSKAv2;
1861 
1862  if (mkv->mode != MODE_WEBM ||
1863  av_dict_get(s->metadata, "stereo_mode", NULL, 0) ||
1864  av_dict_get(s->metadata, "alpha_mode", NULL, 0))
1865  version = 4;
1866 
1867  for (i = 0; i < s->nb_streams; i++) {
1868  if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_OPUS ||
1869  av_dict_get(s->streams[i]->metadata, "stereo_mode", NULL, 0) ||
1870  av_dict_get(s->streams[i]->metadata, "alpha_mode", NULL, 0))
1871  version = 4;
1872  }
1873 
1874  mkv->tracks = av_mallocz_array(s->nb_streams, sizeof(*mkv->tracks));
1875  if (!mkv->tracks) {
1876  ret = AVERROR(ENOMEM);
1877  goto fail;
1878  }
1885  put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , version);
1887  end_ebml_master(pb, ebml_header);
1888 
1890  mkv->segment_offset = avio_tell(pb);
1891 
1892  // we write a seek head at the beginning to point to all other level
1893  // one elements, which aren't more than 10 elements as we write only one
1894  // of every other currently defined level 1 element
1895  mkv->seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 10);
1896  if (!mkv->seekhead) {
1897  ret = AVERROR(ENOMEM);
1898  goto fail;
1899  }
1900 
1902  if (ret < 0) goto fail;
1903 
1904  ret = start_ebml_master_crc32(pb, &mkv->info_bc, mkv, MATROSKA_ID_INFO);
1905  if (ret < 0)
1906  return ret;
1907  pb = mkv->info_bc;
1908 
1910  if ((tag = av_dict_get(s->metadata, "title", NULL, 0)))
1912  if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
1914  if ((tag = av_dict_get(s->metadata, "encoding_tool", NULL, 0)))
1916  else
1918 
1919  if (mkv->mode != MODE_WEBM) {
1920  uint32_t segment_uid[4];
1921  AVLFG lfg;
1922 
1924 
1925  for (i = 0; i < 4; i++)
1926  segment_uid[i] = av_lfg_get(&lfg);
1927 
1928  put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16);
1929  }
1930  } else {
1931  const char *ident = "Lavf";
1934  }
1935 
1936  if (ff_parse_creation_time_metadata(s, &creation_time, 0) > 0) {
1937  // Adjust time so it's relative to 2001-01-01 and convert to nanoseconds.
1938  int64_t date_utc = (creation_time - 978307200000000LL) * 1000;
1939  uint8_t date_utc_buf[8];
1940  AV_WB64(date_utc_buf, date_utc);
1941  put_ebml_binary(pb, MATROSKA_ID_DATEUTC, date_utc_buf, 8);
1942  }
1943 
1944  // reserve space for the duration
1945  mkv->duration = 0;
1946  mkv->duration_offset = avio_tell(pb);
1947  if (!mkv->is_live) {
1948  int64_t metadata_duration = get_metadata_duration(s);
1949 
1950  if (s->duration > 0) {
1951  int64_t scaledDuration = av_rescale(s->duration, 1000, AV_TIME_BASE);
1952  put_ebml_float(pb, MATROSKA_ID_DURATION, scaledDuration);
1953  av_log(s, AV_LOG_DEBUG, "Write early duration from recording time = %" PRIu64 "\n", scaledDuration);
1954  } else if (metadata_duration > 0) {
1955  int64_t scaledDuration = av_rescale(metadata_duration, 1000, AV_TIME_BASE);
1956  put_ebml_float(pb, MATROSKA_ID_DURATION, scaledDuration);
1957  av_log(s, AV_LOG_DEBUG, "Write early duration from metadata = %" PRIu64 "\n", scaledDuration);
1958  } else {
1959  put_ebml_void(pb, 11); // assumes double-precision float to be written
1960  }
1961  }
1962  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1963  end_ebml_master_crc32_preliminary(s->pb, &mkv->info_bc, mkv, &mkv->info_pos);
1964  else
1965  end_ebml_master_crc32(s->pb, &mkv->info_bc, mkv);
1966  pb = s->pb;
1967 
1968  // initialize stream_duration fields
1969  mkv->stream_durations = av_mallocz(s->nb_streams * sizeof(int64_t));
1970  mkv->stream_duration_offsets = av_mallocz(s->nb_streams * sizeof(int64_t));
1971  if (!mkv->stream_durations || !mkv->stream_duration_offsets) {
1972  ret = AVERROR(ENOMEM);
1973  goto fail;
1974  }
1975 
1976  ret = mkv_write_tracks(s);
1977  if (ret < 0)
1978  goto fail;
1979 
1980  for (i = 0; i < s->nb_chapters; i++)
1981  mkv->chapter_id_offset = FFMAX(mkv->chapter_id_offset, 1LL - s->chapters[i]->id);
1982 
1983  ret = mkv_write_chapters(s);
1984  if (ret < 0)
1985  goto fail;
1986 
1987  if (mkv->mode != MODE_WEBM) {
1988  ret = mkv_write_attachments(s);
1989  if (ret < 0)
1990  goto fail;
1991  }
1992 
1993  ret = mkv_write_tags(s);
1994  if (ret < 0)
1995  goto fail;
1996 
1997  if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live)
1998  mkv_write_seekhead(pb, mkv);
1999 
2000  mkv->cues = mkv_start_cues(mkv->segment_offset);
2001  if (!mkv->cues) {
2002  ret = AVERROR(ENOMEM);
2003  goto fail;
2004  }
2005 
2006  if (s->metadata_header_padding > 0) {
2007  if (s->metadata_header_padding == 1)
2010  }
2011 
2012  if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && mkv->reserve_cues_space) {
2013  mkv->cues_pos = avio_tell(pb);
2014  if (mkv->reserve_cues_space == 1)
2015  mkv->reserve_cues_space++;
2017  }
2018 
2020  mkv->cur_audio_pkt.size = 0;
2021  mkv->cluster_pos = -1;
2022 
2023  avio_flush(pb);
2024 
2025  // start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
2026  // after 4k and on a keyframe
2027  if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
2028  if (mkv->cluster_time_limit < 0)
2029  mkv->cluster_time_limit = 5000;
2030  if (mkv->cluster_size_limit < 0)
2031  mkv->cluster_size_limit = 5 * 1024 * 1024;
2032  } else {
2033  if (mkv->cluster_time_limit < 0)
2034  mkv->cluster_time_limit = 1000;
2035  if (mkv->cluster_size_limit < 0)
2036  mkv->cluster_size_limit = 32 * 1024;
2037  }
2038 
2039  return 0;
2040 fail:
2041  mkv_free(mkv);
2042  return ret;
2043 }
2044 
2045 static int mkv_blockgroup_size(int pkt_size)
2046 {
2047  int size = pkt_size + 4;
2048  size += ebml_num_size(size);
2049  size += 2; // EBML ID for block and block duration
2050  size += 9; // max size of block duration incl. length field
2051  return size;
2052 }
2053 
2054 static int mkv_strip_wavpack(const uint8_t *src, uint8_t **pdst, int *size)
2055 {
2056  uint8_t *dst;
2057  int srclen = *size;
2058  int offset = 0;
2059  int ret;
2060 
2061  dst = av_malloc(srclen);
2062  if (!dst)
2063  return AVERROR(ENOMEM);
2064 
2065  while (srclen >= WV_HEADER_SIZE) {
2066  WvHeader header;
2067 
2068  ret = ff_wv_parse_header(&header, src);
2069  if (ret < 0)
2070  goto fail;
2071  src += WV_HEADER_SIZE;
2072  srclen -= WV_HEADER_SIZE;
2073 
2074  if (srclen < header.blocksize) {
2075  ret = AVERROR_INVALIDDATA;
2076  goto fail;
2077  }
2078 
2079  if (header.initial) {
2080  AV_WL32(dst + offset, header.samples);
2081  offset += 4;
2082  }
2083  AV_WL32(dst + offset, header.flags);
2084  AV_WL32(dst + offset + 4, header.crc);
2085  offset += 8;
2086 
2087  if (!(header.initial && header.final)) {
2088  AV_WL32(dst + offset, header.blocksize);
2089  offset += 4;
2090  }
2091 
2092  memcpy(dst + offset, src, header.blocksize);
2093  src += header.blocksize;
2094  srclen -= header.blocksize;
2095  offset += header.blocksize;
2096  }
2097 
2098  *pdst = dst;
2099  *size = offset;
2100 
2101  return 0;
2102 fail:
2103  av_freep(&dst);
2104  return ret;
2105 }
2106 
2108  uint32_t blockid, AVPacket *pkt, int keyframe)
2109 {
2110  MatroskaMuxContext *mkv = s->priv_data;
2112  uint8_t *data = NULL, *side_data = NULL;
2113  int offset = 0, size = pkt->size, side_data_size = 0;
2114  int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
2115  uint64_t additional_id = 0;
2116  int64_t discard_padding = 0;
2117  uint8_t track_number = (mkv->is_dash ? mkv->dash_track_number : (pkt->stream_index + 1));
2118  ebml_master block_group, block_additions, block_more;
2119 
2120  ts += mkv->tracks[pkt->stream_index].ts_offset;
2121 
2122  /* The following string is identical to the one in mkv_write_vtt_blocks
2123  * so that only one copy needs to exist in binaries. */
2124  av_log(s, AV_LOG_DEBUG,
2125  "Writing block of size %d with pts %" PRId64 ", dts %" PRId64 ", "
2126  "duration %" PRId64 " at relative offset %" PRId64 " in cluster "
2127  "at offset %" PRId64 ". TrackNumber %d, keyframe %d\n",
2128  pkt->size, pkt->pts, pkt->dts, pkt->duration, avio_tell(pb),
2129  mkv->cluster_pos, track_number, keyframe != 0);
2130  if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 0 &&
2131  (AV_RB24(par->extradata) == 1 || AV_RB32(par->extradata) == 1))
2132  ff_avc_parse_nal_units_buf(pkt->data, &data, &size);
2133  else if (par->codec_id == AV_CODEC_ID_HEVC && par->extradata_size > 6 &&
2134  (AV_RB24(par->extradata) == 1 || AV_RB32(par->extradata) == 1))
2135  /* extradata is Annex B, assume the bitstream is too and convert it */
2136  ff_hevc_annexb2mp4_buf(pkt->data, &data, &size, 0, NULL);
2137  else if (par->codec_id == AV_CODEC_ID_AV1)
2138  ff_av1_filter_obus_buf(pkt->data, &data, &size);
2139  else if (par->codec_id == AV_CODEC_ID_WAVPACK) {
2140  int ret = mkv_strip_wavpack(pkt->data, &data, &size);
2141  if (ret < 0) {
2142  av_log(s, AV_LOG_ERROR, "Error stripping a WavPack packet.\n");
2143  return;
2144  }
2145  } else
2146  data = pkt->data;
2147 
2148  if (par->codec_id == AV_CODEC_ID_PRORES && size >= 8) {
2149  /* Matroska specification requires to remove the first QuickTime atom
2150  */
2151  size -= 8;
2152  offset = 8;
2153  }
2154 
2155  side_data = av_packet_get_side_data(pkt,
2157  &side_data_size);
2158 
2159  if (side_data && side_data_size >= 10) {
2160  discard_padding = av_rescale_q(AV_RL32(side_data + 4),
2161  (AVRational){1, par->sample_rate},
2162  (AVRational){1, 1000000000});
2163  }
2164 
2165  side_data = av_packet_get_side_data(pkt,
2167  &side_data_size);
2168  if (side_data) {
2169  additional_id = AV_RB64(side_data);
2170  side_data += 8;
2171  side_data_size -= 8;
2172  }
2173 
2174  if ((side_data_size && additional_id == 1) || discard_padding) {
2175  block_group = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, 0);
2176  blockid = MATROSKA_ID_BLOCK;
2177  }
2178 
2179  put_ebml_id(pb, blockid);
2180  put_ebml_num(pb, size + 4, 0);
2181  // this assumes stream_index is less than 126
2182  avio_w8(pb, 0x80 | track_number);
2183  avio_wb16(pb, ts - mkv->cluster_pts);
2184  avio_w8(pb, (blockid == MATROSKA_ID_SIMPLEBLOCK && keyframe) ? (1 << 7) : 0);
2185  avio_write(pb, data + offset, size);
2186  if (data != pkt->data)
2187  av_free(data);
2188 
2189  if (blockid == MATROSKA_ID_BLOCK && !keyframe) {
2191  mkv->last_track_timestamp[track_number - 1]);
2192  }
2193  mkv->last_track_timestamp[track_number - 1] = ts - mkv->cluster_pts;
2194 
2195  if (discard_padding) {
2196  put_ebml_sint(pb, MATROSKA_ID_DISCARDPADDING, discard_padding);
2197  }
2198 
2199  if (side_data_size && additional_id == 1) {
2200  block_additions = start_ebml_master(pb, MATROSKA_ID_BLOCKADDITIONS, 0);
2201  block_more = start_ebml_master(pb, MATROSKA_ID_BLOCKMORE, 0);
2204  put_ebml_num(pb, side_data_size, 0);
2205  avio_write(pb, side_data, side_data_size);
2206  end_ebml_master(pb, block_more);
2207  end_ebml_master(pb, block_additions);
2208  }
2209  if ((side_data_size && additional_id == 1) || discard_padding) {
2210  end_ebml_master(pb, block_group);
2211  }
2212 }
2213 
2215 {
2216  MatroskaMuxContext *mkv = s->priv_data;
2217  ebml_master blockgroup;
2218  int id_size, settings_size, size;
2219  uint8_t *id, *settings;
2220  int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
2221  const int flags = 0;
2222 
2223  id_size = 0;
2225  &id_size);
2226 
2227  settings_size = 0;
2229  &settings_size);
2230 
2231  size = id_size + 1 + settings_size + 1 + pkt->size;
2232 
2233  /* The following string is identical to the one in mkv_write_block so that
2234  * only one copy needs to exist in binaries. */
2235  av_log(s, AV_LOG_DEBUG,
2236  "Writing block of size %d with pts %" PRId64 ", dts %" PRId64 ", "
2237  "duration %" PRId64 " at relative offset %" PRId64 " in cluster "
2238  "at offset %" PRId64 ". TrackNumber %d, keyframe %d\n",
2239  size, pkt->pts, pkt->dts, pkt->duration, avio_tell(pb),
2240  mkv->cluster_pos, pkt->stream_index + 1, 1);
2241 
2243 
2245  put_ebml_num(pb, size + 4, 0);
2246  avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126
2247  avio_wb16(pb, ts - mkv->cluster_pts);
2248  avio_w8(pb, flags);
2249  avio_printf(pb, "%.*s\n%.*s\n%.*s", id_size, id, settings_size, settings, pkt->size, pkt->data);
2250 
2252  end_ebml_master(pb, blockgroup);
2253 
2254  return pkt->duration;
2255 }
2256 
2258 {
2259  MatroskaMuxContext *mkv = s->priv_data;
2260 
2261  end_ebml_master_crc32(s->pb, &mkv->cluster_bc, mkv);
2262  mkv->cluster_pos = -1;
2263  av_log(s, AV_LOG_DEBUG,
2264  "Starting new cluster at offset %" PRIu64 " bytes, "
2265  "pts %" PRIu64 ", dts %" PRIu64 "\n",
2266  avio_tell(s->pb), pkt->pts, pkt->dts);
2267  avio_flush(s->pb);
2268 }
2269 
2271 {
2272  MatroskaMuxContext *mkv = s->priv_data;
2273  mkv_track *track = &mkv->tracks[pkt->stream_index];
2275  uint8_t *side_data;
2276  int side_data_size = 0, ret;
2277 
2279  &side_data_size);
2280 
2281  switch (par->codec_id) {
2282  case AV_CODEC_ID_AAC:
2283  if (side_data_size && (s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
2284  int filler, output_sample_rate = 0;
2285  int64_t curpos;
2286  ret = get_aac_sample_rates(s, side_data, side_data_size, &track->sample_rate,
2287  &output_sample_rate);
2288  if (ret < 0)
2289  return ret;
2290  if (!output_sample_rate)
2291  output_sample_rate = track->sample_rate; // Space is already reserved, so it's this or a void element.
2292  av_freep(&par->extradata);
2293  ret = ff_alloc_extradata(par, side_data_size);
2294  if (ret < 0)
2295  return ret;
2296  memcpy(par->extradata, side_data, side_data_size);
2297  curpos = avio_tell(mkv->tracks_bc);
2298  avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
2299  mkv_write_codecprivate(s, mkv->tracks_bc, par, 1, 0);
2300  filler = MAX_PCE_SIZE + 2 + 4 - (avio_tell(mkv->tracks_bc) - track->codecpriv_offset);
2301  if (filler)
2302  put_ebml_void(mkv->tracks_bc, filler);
2303  avio_seek(mkv->tracks_bc, track->sample_rate_offset, SEEK_SET);
2305  put_ebml_float(mkv->tracks_bc, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);
2306  avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
2307  } else if (!par->extradata_size && !track->sample_rate) {
2308  // No extradata (codecpar or packet side data).
2309  av_log(s, AV_LOG_ERROR, "Error parsing AAC extradata, unable to determine samplerate.\n");
2310  return AVERROR(EINVAL);
2311  }
2312  break;
2313  case AV_CODEC_ID_FLAC:
2314  if (side_data_size && (s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
2315  AVCodecParameters *codecpriv_par;
2316  int64_t curpos;
2317  if (side_data_size != par->extradata_size) {
2318  av_log(s, AV_LOG_ERROR, "Invalid FLAC STREAMINFO metadata for output stream %d\n",
2319  pkt->stream_index);
2320  return AVERROR(EINVAL);
2321  }
2322  codecpriv_par = avcodec_parameters_alloc();
2323  if (!codecpriv_par)
2324  return AVERROR(ENOMEM);
2325  ret = avcodec_parameters_copy(codecpriv_par, par);
2326  if (ret < 0) {
2327  avcodec_parameters_free(&codecpriv_par);
2328  return ret;
2329  }
2330  memcpy(codecpriv_par->extradata, side_data, side_data_size);
2331  curpos = avio_tell(mkv->tracks_bc);
2332  avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
2333  mkv_write_codecprivate(s, mkv->tracks_bc, codecpriv_par, 1, 0);
2334  avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
2335  avcodec_parameters_free(&codecpriv_par);
2336  }
2337  break;
2338  // FIXME: Remove the following once libaom starts propagating extradata during init()
2339  // See https://bugs.chromium.org/p/aomedia/issues/detail?id=2012
2340  case AV_CODEC_ID_AV1:
2341  if (side_data_size && (s->pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live &&
2342  !par->extradata_size) {
2343  AVIOContext *dyn_cp;
2344  uint8_t *codecpriv;
2345  int codecpriv_size;
2346  int64_t curpos;
2347  ret = avio_open_dyn_buf(&dyn_cp);
2348  if (ret < 0)
2349  return ret;
2350  ff_isom_write_av1c(dyn_cp, side_data, side_data_size);
2351  codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv);
2352  if (!codecpriv_size) {
2353  av_free(codecpriv);
2354  return AVERROR_INVALIDDATA;
2355  }
2356  curpos = avio_tell(mkv->tracks_bc);
2357  avio_seek(mkv->tracks_bc, track->codecpriv_offset, SEEK_SET);
2358  // Do not write the OBUs as we don't have space saved for them
2359  put_ebml_binary(mkv->tracks_bc, MATROSKA_ID_CODECPRIVATE, codecpriv, 4);
2360  av_free(codecpriv);
2361  avio_seek(mkv->tracks_bc, curpos, SEEK_SET);
2362  ret = ff_alloc_extradata(par, side_data_size);
2363  if (ret < 0)
2364  return ret;
2365  memcpy(par->extradata, side_data, side_data_size);
2366  } else if (!par->extradata_size)
2367  return AVERROR_INVALIDDATA;
2368  break;
2369  default:
2370  if (side_data_size)
2371  av_log(s, AV_LOG_DEBUG, "Ignoring new extradata in a packet for stream %d.\n", pkt->stream_index);
2372  break;
2373  }
2374 
2375  return 0;
2376 }
2377 
2379 {
2380  MatroskaMuxContext *mkv = s->priv_data;
2381  AVIOContext *pb = s->pb;
2383  int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
2384  int duration = pkt->duration;
2385  int ret;
2386  int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
2387  int64_t relative_packet_pos;
2388  int dash_tracknum = mkv->is_dash ? mkv->dash_track_number : pkt->stream_index + 1;
2389 
2390  if (ts == AV_NOPTS_VALUE) {
2391  av_log(s, AV_LOG_ERROR, "Can't write packet with unknown timestamp\n");
2392  return AVERROR(EINVAL);
2393  }
2394  ts += mkv->tracks[pkt->stream_index].ts_offset;
2395 
2396  if (mkv->cluster_pos != -1) {
2397  int64_t cluster_time = ts - mkv->cluster_pts;
2398  if ((int16_t)cluster_time != cluster_time) {
2399  av_log(s, AV_LOG_WARNING, "Starting new cluster due to timestamp\n");
2400  mkv_start_new_cluster(s, pkt);
2401  }
2402  }
2403 
2404  if (mkv->cluster_pos == -1) {
2405  mkv->cluster_pos = avio_tell(s->pb);
2407  if (ret < 0)
2408  return ret;
2410  mkv->cluster_pts = FFMAX(0, ts);
2411  }
2412  pb = mkv->cluster_bc;
2413 
2414  relative_packet_pos = avio_tell(pb);
2415 
2416  if (par->codec_type != AVMEDIA_TYPE_SUBTITLE) {
2417  mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe);
2418  if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && (par->codec_type == AVMEDIA_TYPE_VIDEO && keyframe || add_cue)) {
2419  ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts, mkv->cluster_pos, relative_packet_pos, -1);
2420  if (ret < 0) return ret;
2421  }
2422  } else {
2423  if (par->codec_id == AV_CODEC_ID_WEBVTT) {
2424  duration = mkv_write_vtt_blocks(s, pb, pkt);
2425  } else {
2427  mkv_blockgroup_size(pkt->size));
2428 
2429 #if FF_API_CONVERGENCE_DURATION
2431  /* For backward compatibility, prefer convergence_duration. */
2432  if (pkt->convergence_duration > 0) {
2433  duration = pkt->convergence_duration;
2434  }
2436 #endif
2437  /* All subtitle blocks are considered to be keyframes. */
2438  mkv_write_block(s, pb, MATROSKA_ID_BLOCK, pkt, 1);
2440  end_ebml_master(pb, blockgroup);
2441  }
2442 
2443  if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
2444  ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, dash_tracknum, ts,
2445  mkv->cluster_pos, relative_packet_pos, duration);
2446  if (ret < 0)
2447  return ret;
2448  }
2449  }
2450 
2451  mkv->duration = FFMAX(mkv->duration, ts + duration);
2452 
2453  if (mkv->stream_durations)
2454  mkv->stream_durations[pkt->stream_index] =
2455  FFMAX(mkv->stream_durations[pkt->stream_index], ts + duration);
2456 
2457  return 0;
2458 }
2459 
2461 {
2462  MatroskaMuxContext *mkv = s->priv_data;
2464  int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
2465  int cluster_size;
2466  int64_t cluster_time;
2467  int ret;
2468  int start_new_cluster;
2469 
2470  ret = mkv_check_new_extra_data(s, pkt);
2471  if (ret < 0)
2472  return ret;
2473 
2474  if (mkv->tracks[pkt->stream_index].write_dts)
2475  cluster_time = pkt->dts - mkv->cluster_pts;
2476  else
2477  cluster_time = pkt->pts - mkv->cluster_pts;
2478  cluster_time += mkv->tracks[pkt->stream_index].ts_offset;
2479 
2480  // start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
2481  // after 4k and on a keyframe
2482  cluster_size = avio_tell(mkv->cluster_bc);
2483 
2484  if (mkv->is_dash && codec_type == AVMEDIA_TYPE_VIDEO) {
2485  // WebM DASH specification states that the first block of every cluster
2486  // has to be a key frame. So for DASH video, we only create a cluster
2487  // on seeing key frames.
2488  start_new_cluster = keyframe;
2489  } else if (mkv->is_dash && codec_type == AVMEDIA_TYPE_AUDIO &&
2490  (mkv->cluster_pos == -1 ||
2491  cluster_time > mkv->cluster_time_limit)) {
2492  // For DASH audio, we create a Cluster based on cluster_time_limit
2493  start_new_cluster = 1;
2494  } else if (!mkv->is_dash &&
2495  (cluster_size > mkv->cluster_size_limit ||
2496  cluster_time > mkv->cluster_time_limit ||
2497  (codec_type == AVMEDIA_TYPE_VIDEO && keyframe &&
2498  cluster_size > 4 * 1024))) {
2499  start_new_cluster = 1;
2500  } else {
2501  start_new_cluster = 0;
2502  }
2503 
2504  if (mkv->cluster_pos != -1 && start_new_cluster) {
2505  mkv_start_new_cluster(s, pkt);
2506  }
2507 
2508  if (!mkv->cluster_pos)
2509  avio_write_marker(s->pb,
2512 
2513  // check if we have an audio packet cached
2514  if (mkv->cur_audio_pkt.size > 0) {
2515  // for DASH audio, a CuePoint has to be added when there is a new cluster.
2517  mkv->is_dash ? start_new_cluster : 0);
2519  if (ret < 0) {
2520  av_log(s, AV_LOG_ERROR,
2521  "Could not write cached audio packet ret:%d\n", ret);
2522  return ret;
2523  }
2524  }
2525 
2526  // buffer an audio packet to ensure the packet containing the video
2527  // keyframe's timecode is contained in the same cluster for WebM
2528  if (codec_type == AVMEDIA_TYPE_AUDIO) {
2529  if (pkt->size > 0)
2530  ret = av_packet_ref(&mkv->cur_audio_pkt, pkt);
2531  } else
2532  ret = mkv_write_packet_internal(s, pkt, 0);
2533  return ret;
2534 }
2535 
2537 {
2538  MatroskaMuxContext *mkv = s->priv_data;
2539 
2540  if (!pkt) {
2541  if (mkv->cluster_pos != -1) {
2542  end_ebml_master_crc32(s->pb, &mkv->cluster_bc, mkv);
2543  mkv->cluster_pos = -1;
2544  av_log(s, AV_LOG_DEBUG,
2545  "Flushing cluster at offset %" PRIu64 " bytes\n",
2546  avio_tell(s->pb));
2547  avio_flush(s->pb);
2548  }
2549  return 1;
2550  }
2551  return mkv_write_packet(s, pkt);
2552 }
2553 
2555 {
2556  MatroskaMuxContext *mkv = s->priv_data;
2557  AVIOContext *pb = s->pb;
2558  int64_t currentpos, cuespos;
2559  int ret;
2560 
2561  // check if we have an audio packet cached
2562  if (mkv->cur_audio_pkt.size > 0) {
2563  ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt, 0);
2565  if (ret < 0) {
2566  av_log(s, AV_LOG_ERROR,
2567  "Could not write cached audio packet ret:%d\n", ret);
2568  return ret;
2569  }
2570  }
2571 
2572  if (mkv->cluster_bc) {
2573  end_ebml_master_crc32(pb, &mkv->cluster_bc, mkv);
2574  }
2575 
2576  ret = mkv_write_chapters(s);
2577  if (ret < 0)
2578  return ret;
2579 
2580 
2581  if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && !mkv->is_live) {
2582  if (mkv->cues->num_entries) {
2583  if (mkv->reserve_cues_space) {
2584  int64_t cues_end;
2585 
2586  currentpos = avio_tell(pb);
2587  avio_seek(pb, mkv->cues_pos, SEEK_SET);
2588 
2589  cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams);
2590  cues_end = avio_tell(pb);
2591  if (cues_end > cuespos + mkv->reserve_cues_space) {
2592  av_log(s, AV_LOG_ERROR,
2593  "Insufficient space reserved for cues: %d "
2594  "(needed: %" PRId64 ").\n",
2595  mkv->reserve_cues_space, cues_end - cuespos);
2596  return AVERROR(EINVAL);
2597  }
2598 
2599  if (cues_end < cuespos + mkv->reserve_cues_space)
2601  (cues_end - cuespos));
2602 
2603  avio_seek(pb, currentpos, SEEK_SET);
2604  } else {
2605  cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams);
2606  }
2607 
2609  cuespos);
2610  if (ret < 0)
2611  return ret;
2612  }
2613 
2614  mkv_write_seekhead(pb, mkv);
2615 
2616  // update the duration
2617  av_log(s, AV_LOG_DEBUG, "end duration = %" PRIu64 "\n", mkv->duration);
2618  currentpos = avio_tell(pb);
2619  avio_seek(mkv->info_bc, mkv->duration_offset, SEEK_SET);
2621  avio_seek(pb, mkv->info_pos, SEEK_SET);
2622  end_ebml_master_crc32(pb, &mkv->info_bc, mkv);
2623 
2624  // write tracks master
2625  avio_seek(pb, mkv->tracks_pos, SEEK_SET);
2626  end_ebml_master_crc32(pb, &mkv->tracks_bc, mkv);
2627 
2628  // update stream durations
2629  if (!mkv->is_live && mkv->stream_durations) {
2630  int i;
2631  int64_t curr = avio_tell(mkv->tags_bc);
2632  for (i = 0; i < s->nb_streams; ++i) {
2633  AVStream *st = s->streams[i];
2634 
2635  if (mkv->stream_duration_offsets[i] > 0) {
2636  double duration_sec = mkv->stream_durations[i] * av_q2d(st->time_base);
2637  char duration_string[20] = "";
2638 
2639  av_log(s, AV_LOG_DEBUG, "stream %d end duration = %" PRIu64 "\n", i,
2640  mkv->stream_durations[i]);
2641 
2642  avio_seek(mkv->tags_bc, mkv->stream_duration_offsets[i], SEEK_SET);
2643 
2644  snprintf(duration_string, 20, "%02d:%02d:%012.9f",
2645  (int) duration_sec / 3600, ((int) duration_sec / 60) % 60,
2646  fmod(duration_sec, 60));
2647 
2648  put_ebml_binary(mkv->tags_bc, MATROSKA_ID_TAGSTRING, duration_string, 20);
2649  }
2650  }
2651  avio_seek(mkv->tags_bc, curr, SEEK_SET);
2652  }
2653  if (mkv->tags_bc && !mkv->is_live) {
2654  avio_seek(pb, mkv->tags_pos, SEEK_SET);
2655  end_ebml_master_crc32(pb, &mkv->tags_bc, mkv);
2656  }
2657 
2658  avio_seek(pb, currentpos, SEEK_SET);
2659  }
2660 
2661  if (!mkv->is_live) {
2662  end_ebml_master(pb, mkv->segment);
2663  }
2664 
2665  mkv_free(mkv);
2666  return 0;
2667 }
2668 
2669 static int mkv_query_codec(enum AVCodecID codec_id, int std_compliance)
2670 {
2671  int i;
2672  for (i = 0; ff_mkv_codec_tags[i].id != AV_CODEC_ID_NONE; i++)
2673  if (ff_mkv_codec_tags[i].id == codec_id)
2674  return 1;
2675 
2676  if (std_compliance < FF_COMPLIANCE_NORMAL) {
2677  enum AVMediaType type = avcodec_get_type(codec_id);
2678  // mkv theoretically supports any video/audio through VFW/ACM
2679  if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)
2680  return 1;
2681  }
2682 
2683  return 0;
2684 }
2685 
2686 static int webm_query_codec(enum AVCodecID codec_id, int std_compliance)
2687 {
2688  int i;
2689  for (i = 0; ff_webm_codec_tags[i].id != AV_CODEC_ID_NONE; i++)
2690  if (ff_webm_codec_tags[i].id == codec_id)
2691  return 1;
2692 
2693  return 0;
2694 }
2695 
2696 static int mkv_init(struct AVFormatContext *s)
2697 {
2698  int i;
2699 
2700  if (s->nb_streams > MAX_TRACKS) {
2701  av_log(s, AV_LOG_ERROR,
2702  "At most %d streams are supported for muxing in Matroska\n",
2703  MAX_TRACKS);
2704  return AVERROR(EINVAL);
2705  }
2706 
2707  for (i = 0; i < s->nb_streams; i++) {
2708  if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_ATRAC3 ||
2714  av_log(s, AV_LOG_ERROR,
2715  "The Matroska muxer does not yet support muxing %s\n",
2717  return AVERROR_PATCHWELCOME;
2718  }
2719  }
2720 
2721  if (s->avoid_negative_ts < 0) {
2722  s->avoid_negative_ts = 1;
2724  }
2725 
2726  for (i = 0; i < s->nb_streams; i++) {
2727  // ms precision is the de-facto standard timescale for mkv files
2728  avpriv_set_pts_info(s->streams[i], 64, 1, 1000);
2729  }
2730 
2731  return 0;
2732 }
2733 
2734 static int mkv_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
2735 {
2736  int ret = 1;
2737  AVStream *st = s->streams[pkt->stream_index];
2738 
2739  if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
2740  if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
2741  ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
2742  } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) {
2743  ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL);
2744  }
2745 
2746  return ret;
2747 }
2748 
2750  { AV_CODEC_ID_ALAC, 0XFFFFFFFF },
2751  { AV_CODEC_ID_MLP, 0xFFFFFFFF },
2752  { AV_CODEC_ID_OPUS, 0xFFFFFFFF },
2753  { AV_CODEC_ID_PCM_S16BE, 0xFFFFFFFF },
2754  { AV_CODEC_ID_PCM_S24BE, 0xFFFFFFFF },
2755  { AV_CODEC_ID_PCM_S32BE, 0xFFFFFFFF },
2756  { AV_CODEC_ID_QDMC, 0xFFFFFFFF },
2757  { AV_CODEC_ID_QDM2, 0xFFFFFFFF },
2758  { AV_CODEC_ID_RA_144, 0xFFFFFFFF },
2759  { AV_CODEC_ID_RA_288, 0xFFFFFFFF },
2760  { AV_CODEC_ID_COOK, 0xFFFFFFFF },
2761  { AV_CODEC_ID_TRUEHD, 0xFFFFFFFF },
2762  { AV_CODEC_ID_NONE, 0xFFFFFFFF }
2763 };
2764 
2766  { AV_CODEC_ID_RV10, 0xFFFFFFFF },
2767  { AV_CODEC_ID_RV20, 0xFFFFFFFF },
2768  { AV_CODEC_ID_RV30, 0xFFFFFFFF },
2769  { AV_CODEC_ID_NONE, 0xFFFFFFFF }
2770 };
2771 
2773  { AV_CODEC_ID_DVB_SUBTITLE, 0xFFFFFFFF },
2774  { AV_CODEC_ID_DVD_SUBTITLE, 0xFFFFFFFF },
2775  { AV_CODEC_ID_HDMV_PGS_SUBTITLE, 0xFFFFFFFF },
2776  { AV_CODEC_ID_NONE, 0xFFFFFFFF }
2777 };
2778 
2779 #define OFFSET(x) offsetof(MatroskaMuxContext, x)
2780 #define FLAGS AV_OPT_FLAG_ENCODING_PARAM
2781 static const AVOption options[] = {
2782  { "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 },
2783  { "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 },
2784  { "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 },
2785  { "dash", "Create a WebM file conforming to WebM DASH specification", OFFSET(is_dash), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
2786  { "dash_track_number", "Track number for the DASH stream", OFFSET(dash_track_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 127, FLAGS },
2787  { "live", "Write files assuming it is a live stream.", OFFSET(is_live), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
2788  { "allow_raw_vfw", "allow RAW VFW mode", OFFSET(allow_raw_vfw), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
2789  { "write_crc32", "write a CRC32 element inside every Level 1 element", OFFSET(write_crc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
2790  { NULL },
2791 };
2792 
2793 #if CONFIG_MATROSKA_MUXER
2794 static const AVClass matroska_class = {
2795  .class_name = "matroska muxer",
2796  .item_name = av_default_item_name,
2797  .option = options,
2798  .version = LIBAVUTIL_VERSION_INT,
2799 };
2800 
2802  .name = "matroska",
2803  .long_name = NULL_IF_CONFIG_SMALL("Matroska"),
2804  .mime_type = "video/x-matroska",
2805  .extensions = "mkv",
2806  .priv_data_size = sizeof(MatroskaMuxContext),
2807  .audio_codec = CONFIG_LIBVORBIS_ENCODER ?
2809  .video_codec = CONFIG_LIBX264_ENCODER ?
2811  .init = mkv_init,
2817  .codec_tag = (const AVCodecTag* const []){
2820  },
2821  .subtitle_codec = AV_CODEC_ID_ASS,
2822  .query_codec = mkv_query_codec,
2823  .check_bitstream = mkv_check_bitstream,
2824  .priv_class = &matroska_class,
2825 };
2826 #endif
2827 
2828 #if CONFIG_WEBM_MUXER
2829 static const AVClass webm_class = {
2830  .class_name = "webm muxer",
2831  .item_name = av_default_item_name,
2832  .option = options,
2833  .version = LIBAVUTIL_VERSION_INT,
2834 };
2835 
2837  .name = "webm",
2838  .long_name = NULL_IF_CONFIG_SMALL("WebM"),
2839  .mime_type = "video/webm",
2840  .extensions = "webm",
2841  .priv_data_size = sizeof(MatroskaMuxContext),
2844  .subtitle_codec = AV_CODEC_ID_WEBVTT,
2845  .init = mkv_init,
2850  .check_bitstream = mkv_check_bitstream,
2853  .priv_class = &webm_class,
2854 };
2855 #endif
2856 
2857 #if CONFIG_MATROSKA_AUDIO_MUXER
2858 static const AVClass mka_class = {
2859  .class_name = "matroska audio muxer",
2860  .item_name = av_default_item_name,
2861  .option = options,
2862  .version = LIBAVUTIL_VERSION_INT,
2863 };
2865  .name = "matroska",
2866  .long_name = NULL_IF_CONFIG_SMALL("Matroska Audio"),
2867  .mime_type = "audio/x-matroska",
2868  .extensions = "mka",
2869  .priv_data_size = sizeof(MatroskaMuxContext),
2870  .audio_codec = CONFIG_LIBVORBIS_ENCODER ?
2872  .video_codec = AV_CODEC_ID_NONE,
2873  .init = mkv_init,
2877  .check_bitstream = mkv_check_bitstream,
2880  .codec_tag = (const AVCodecTag* const []){
2882  },
2883  .priv_class = &mka_class,
2884 };
2885 #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:2378
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:689
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:2214
#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
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:2257
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition: aviobuf.c:1413
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:2696
#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:3125
#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:4886
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:2772
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:1726
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:867
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:1847
#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:3115
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
#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
static int start_ebml_master_crc32(AVIOContext *pb, AVIOContext **dyn_cp, MatroskaMuxContext *mkv, uint32_t elementid)
Definition: matroskaenc.c:334
#define MATROSKA_ID_CLUSTERTIMECODE
Definition: matroska.h:224
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Definition: aviobuf.c:1384
#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:2780
#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:458
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:2749
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:800
#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:5447
#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:2686
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:569
#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
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:225
#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:1533
#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:5653
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:1640
#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:270
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:714
#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:2045
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:1475
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:437
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:3288
#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:656
static void end_ebml_master_crc32(AVIOContext *pb, AVIOContext **dyn_cp, MatroskaMuxContext *mkv)
Definition: matroskaenc.c:349
static void mkv_free(MatroskaMuxContext *mkv)
Free the members allocated in the mux context.
Definition: matroskaenc.c:391
#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:486
static int mkv_write_native_codecprivate(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, AVIOContext *dyn_cp)
Definition: matroskaenc.c:747
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:1823
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:2270
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:2779
#define MATROSKA_ID_AUDIOSAMPLINGFREQ
Definition: matroska.h:164
static int mkv_check_tag(AVDictionary *m, uint32_t elementid)
Definition: matroskaenc.c:1629
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
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:546
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:1171
#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:244
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:1591
#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:1443
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:1567
#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
static void mkv_write_block(AVFormatContext *s, AVIOContext *pb, uint32_t blockid, AVPacket *pkt, int keyframe)
Definition: matroskaenc.c:2107
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:2054
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:561
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:628
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:2765
static int put_flac_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par)
Definition: matroskaenc.c:665
#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:2554
Main libavformat public API header.
static int mkv_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
Definition: matroskaenc.c:2734
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 void end_ebml_master_crc32_preliminary(AVIOContext *pb, AVIOContext **dyn_cp, MatroskaMuxContext *mkv, int64_t *pos)
Complete ebml master without destroying the buffer, allowing for later updates.
Definition: matroskaenc.c:370
static double c[64]
static int mkv_write_flush_packet(AVFormatContext *s, AVPacket *pkt)
Definition: matroskaenc.c:2536
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:314
static void put_ebml_void(AVIOContext *pb, uint64_t size)
Write a void element of a given size.
Definition: matroskaenc.c:297
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:1073
#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:5516
static void put_ebml_binary(AVIOContext *pb, uint32_t elementid, const void *buf, int size)
Definition: matroskaenc.c:277
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:2781
#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:285
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:257
#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:2460
#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:536
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:324
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:1605
#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:1034
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:2669
static void put_xiph_size(AVIOContext *pb, int size)
Definition: matroskaenc.c:382
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
#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:957
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:1396
static uint8_t tmp[11]
Definition: aes_ctr.c:26