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movenc.c
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1 /*
2  * MOV, 3GP, MP4 muxer
3  * Copyright (c) 2003 Thomas Raivio
4  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <stdint.h>
25 #include <inttypes.h>
26 
27 #include "movenc.h"
28 #include "avformat.h"
29 #include "avio_internal.h"
30 #include "riff.h"
31 #include "avio.h"
32 #include "isom.h"
33 #include "avc.h"
34 #include "libavcodec/ac3_parser.h"
35 #include "libavcodec/get_bits.h"
36 #include "libavcodec/put_bits.h"
37 #include "libavcodec/vc1_common.h"
38 #include "libavcodec/raw.h"
39 #include "internal.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/intfloat.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/libm.h"
44 #include "libavutil/opt.h"
45 #include "libavutil/dict.h"
46 #include "libavutil/pixdesc.h"
47 #include "libavutil/timecode.h"
48 #include "libavutil/color_utils.h"
49 #include "hevc.h"
50 #include "rtpenc.h"
51 #include "mov_chan.h"
52 
53 static const AVOption options[] = {
54  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55  { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56  { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
57  { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58  { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59  { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60  { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61  { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62  { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63  { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64  { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
65  { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
66  { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
67  { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
68  { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
69  { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
70  { "write_colr", "Write colr atom (Experimental, may be renamed or changed, do not use from scripts)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
71  { "write_gama", "Write deprecated gama atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_GAMA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
72  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
73  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
74  { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
75  { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
76  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
77  { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
78  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
79  { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
80  { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
81  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
82  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
83  { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
84  { "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM},
85  { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
86  { NULL },
87 };
88 
89 #define MOV_CLASS(flavor)\
90 static const AVClass flavor ## _muxer_class = {\
91  .class_name = #flavor " muxer",\
92  .item_name = av_default_item_name,\
93  .option = options,\
94  .version = LIBAVUTIL_VERSION_INT,\
95 };
96 
97 static int get_moov_size(AVFormatContext *s);
98 
99 static int utf8len(const uint8_t *b)
100 {
101  int len = 0;
102  int val;
103  while (*b) {
104  GET_UTF8(val, *b++, return -1;)
105  len++;
106  }
107  return len;
108 }
109 
110 //FIXME support 64 bit variant with wide placeholders
111 static int64_t update_size(AVIOContext *pb, int64_t pos)
112 {
113  int64_t curpos = avio_tell(pb);
114  avio_seek(pb, pos, SEEK_SET);
115  avio_wb32(pb, curpos - pos); /* rewrite size */
116  avio_seek(pb, curpos, SEEK_SET);
117 
118  return curpos - pos;
119 }
120 
121 static int co64_required(const MOVTrack *track)
122 {
123  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
124  return 1;
125  return 0;
126 }
127 
128 /* Chunk offset atom */
129 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
130 {
131  int i;
132  int mode64 = co64_required(track); // use 32 bit size variant if possible
133  int64_t pos = avio_tell(pb);
134  avio_wb32(pb, 0); /* size */
135  if (mode64)
136  ffio_wfourcc(pb, "co64");
137  else
138  ffio_wfourcc(pb, "stco");
139  avio_wb32(pb, 0); /* version & flags */
140  avio_wb32(pb, track->chunkCount); /* entry count */
141  for (i = 0; i < track->entry; i++) {
142  if (!track->cluster[i].chunkNum)
143  continue;
144  if (mode64 == 1)
145  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
146  else
147  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
148  }
149  return update_size(pb, pos);
150 }
151 
152 /* Sample size atom */
153 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
154 {
155  int equalChunks = 1;
156  int i, j, entries = 0, tst = -1, oldtst = -1;
157 
158  int64_t pos = avio_tell(pb);
159  avio_wb32(pb, 0); /* size */
160  ffio_wfourcc(pb, "stsz");
161  avio_wb32(pb, 0); /* version & flags */
162 
163  for (i = 0; i < track->entry; i++) {
164  tst = track->cluster[i].size / track->cluster[i].entries;
165  if (oldtst != -1 && tst != oldtst)
166  equalChunks = 0;
167  oldtst = tst;
168  entries += track->cluster[i].entries;
169  }
170  if (equalChunks && track->entry) {
171  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
172  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
173  avio_wb32(pb, sSize); // sample size
174  avio_wb32(pb, entries); // sample count
175  } else {
176  avio_wb32(pb, 0); // sample size
177  avio_wb32(pb, entries); // sample count
178  for (i = 0; i < track->entry; i++) {
179  for (j = 0; j < track->cluster[i].entries; j++) {
180  avio_wb32(pb, track->cluster[i].size /
181  track->cluster[i].entries);
182  }
183  }
184  }
185  return update_size(pb, pos);
186 }
187 
188 /* Sample to chunk atom */
189 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
190 {
191  int index = 0, oldval = -1, i;
192  int64_t entryPos, curpos;
193 
194  int64_t pos = avio_tell(pb);
195  avio_wb32(pb, 0); /* size */
196  ffio_wfourcc(pb, "stsc");
197  avio_wb32(pb, 0); // version & flags
198  entryPos = avio_tell(pb);
199  avio_wb32(pb, track->chunkCount); // entry count
200  for (i = 0; i < track->entry; i++) {
201  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
202  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
203  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
204  avio_wb32(pb, 0x1); // sample description index
205  oldval = track->cluster[i].samples_in_chunk;
206  index++;
207  }
208  }
209  curpos = avio_tell(pb);
210  avio_seek(pb, entryPos, SEEK_SET);
211  avio_wb32(pb, index); // rewrite size
212  avio_seek(pb, curpos, SEEK_SET);
213 
214  return update_size(pb, pos);
215 }
216 
217 /* Sync sample atom */
218 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
219 {
220  int64_t curpos, entryPos;
221  int i, index = 0;
222  int64_t pos = avio_tell(pb);
223  avio_wb32(pb, 0); // size
224  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
225  avio_wb32(pb, 0); // version & flags
226  entryPos = avio_tell(pb);
227  avio_wb32(pb, track->entry); // entry count
228  for (i = 0; i < track->entry; i++) {
229  if (track->cluster[i].flags & flag) {
230  avio_wb32(pb, i + 1);
231  index++;
232  }
233  }
234  curpos = avio_tell(pb);
235  avio_seek(pb, entryPos, SEEK_SET);
236  avio_wb32(pb, index); // rewrite size
237  avio_seek(pb, curpos, SEEK_SET);
238  return update_size(pb, pos);
239 }
240 
241 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
242 {
243  avio_wb32(pb, 0x11); /* size */
244  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
245  else ffio_wfourcc(pb, "damr");
246  ffio_wfourcc(pb, "FFMP");
247  avio_w8(pb, 0); /* decoder version */
248 
249  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
250  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
251  avio_w8(pb, 0x01); /* Frames per sample */
252  return 0x11;
253 }
254 
255 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
256 {
257  GetBitContext gbc;
258  PutBitContext pbc;
259  uint8_t buf[3];
260  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
261 
262  if (track->vos_len < 7)
263  return -1;
264 
265  avio_wb32(pb, 11);
266  ffio_wfourcc(pb, "dac3");
267 
268  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
269  fscod = get_bits(&gbc, 2);
270  frmsizecod = get_bits(&gbc, 6);
271  bsid = get_bits(&gbc, 5);
272  bsmod = get_bits(&gbc, 3);
273  acmod = get_bits(&gbc, 3);
274  if (acmod == 2) {
275  skip_bits(&gbc, 2); // dsurmod
276  } else {
277  if ((acmod & 1) && acmod != 1)
278  skip_bits(&gbc, 2); // cmixlev
279  if (acmod & 4)
280  skip_bits(&gbc, 2); // surmixlev
281  }
282  lfeon = get_bits1(&gbc);
283 
284  init_put_bits(&pbc, buf, sizeof(buf));
285  put_bits(&pbc, 2, fscod);
286  put_bits(&pbc, 5, bsid);
287  put_bits(&pbc, 3, bsmod);
288  put_bits(&pbc, 3, acmod);
289  put_bits(&pbc, 1, lfeon);
290  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
291  put_bits(&pbc, 5, 0); // reserved
292 
293  flush_put_bits(&pbc);
294  avio_write(pb, buf, sizeof(buf));
295 
296  return 11;
297 }
298 
299 struct eac3_info {
303 
304  /* Layout of the EC3SpecificBox */
305  /* maximum bitrate */
306  uint16_t data_rate;
307  /* number of independent substreams */
309  struct {
310  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
312  /* bit stream identification 5 bits */
314  /* one bit reserved */
315  /* audio service mixing (not supported yet) 1 bit */
316  /* bit stream mode 3 bits */
318  /* audio coding mode 3 bits */
320  /* sub woofer on 1 bit */
322  /* 3 bits reserved */
323  /* number of dependent substreams associated with this substream 4 bits */
325  /* channel locations of the dependent substream(s), if any, 9 bits */
326  uint16_t chan_loc;
327  /* if there is no dependent substream, then one bit reserved instead */
328  } substream[1]; /* TODO: support 8 independent substreams */
329 };
330 
331 #if CONFIG_AC3_PARSER
332 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
333 {
334  GetBitContext gbc;
335  AC3HeaderInfo tmp, *hdr = &tmp;
336  struct eac3_info *info;
337  int num_blocks;
338 
339  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
340  return AVERROR(ENOMEM);
341  info = track->eac3_priv;
342 
343  init_get_bits(&gbc, pkt->data, pkt->size * 8);
344  if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
345  /* drop the packets until we see a good one */
346  if (!track->entry) {
347  av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
348  return 0;
349  }
350  return AVERROR_INVALIDDATA;
351  }
352 
353  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
354  num_blocks = hdr->num_blocks;
355 
356  if (!info->ec3_done) {
357  /* AC-3 substream must be the first one */
358  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
359  return AVERROR(EINVAL);
360 
361  /* this should always be the case, given that our AC-3 parser
362  * concatenates dependent frames to their independent parent */
364  /* substream ids must be incremental */
365  if (hdr->substreamid > info->num_ind_sub + 1)
366  return AVERROR(EINVAL);
367 
368  if (hdr->substreamid == info->num_ind_sub + 1) {
369  //info->num_ind_sub++;
370  avpriv_request_sample(track->enc, "Multiple independent substreams");
371  return AVERROR_PATCHWELCOME;
372  } else if (hdr->substreamid < info->num_ind_sub ||
373  hdr->substreamid == 0 && info->substream[0].bsid) {
374  info->ec3_done = 1;
375  goto concatenate;
376  }
377  }
378 
379  /* fill the info needed for the "dec3" atom */
380  info->substream[hdr->substreamid].fscod = hdr->sr_code;
381  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
382  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
383  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
384  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
385 
386  /* Parse dependent substream(s), if any */
387  if (pkt->size != hdr->frame_size) {
388  int cumul_size = hdr->frame_size;
389  int parent = hdr->substreamid;
390 
391  while (cumul_size != pkt->size) {
392  int i;
393  init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
394  if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
395  return AVERROR_INVALIDDATA;
397  return AVERROR(EINVAL);
398  cumul_size += hdr->frame_size;
399  info->substream[parent].num_dep_sub++;
400 
401  /* header is parsed up to lfeon, but custom channel map may be needed */
402  /* skip bsid */
403  skip_bits(&gbc, 5);
404  /* skip volume control params */
405  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
406  skip_bits(&gbc, 5); // skip dialog normalization
407  if (get_bits1(&gbc)) {
408  skip_bits(&gbc, 8); // skip compression gain word
409  }
410  }
411  /* get the dependent stream channel map, if exists */
412  if (get_bits1(&gbc))
413  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
414  else
415  info->substream[parent].chan_loc |= hdr->channel_mode;
416  }
417  }
418  }
419 
420 concatenate:
421  if (!info->num_blocks && num_blocks == 6)
422  return pkt->size;
423  else if (info->num_blocks + num_blocks > 6)
424  return AVERROR_INVALIDDATA;
425 
426  if (!info->num_blocks) {
427  int ret;
428  if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
429  return ret;
430  info->num_blocks = num_blocks;
431  return 0;
432  } else {
433  int ret;
434  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
435  return ret;
436  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
437  info->num_blocks += num_blocks;
438  info->pkt.duration += pkt->duration;
439  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
440  return ret;
441  if (info->num_blocks != 6)
442  return 0;
443  av_free_packet(pkt);
444  if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
445  return ret;
446  av_free_packet(&info->pkt);
447  info->num_blocks = 0;
448  }
449 
450  return pkt->size;
451 }
452 #endif
453 
454 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
455 {
456  PutBitContext pbc;
457  uint8_t *buf;
458  struct eac3_info *info;
459  int size, i;
460 
461  if (!track->eac3_priv)
462  return AVERROR(EINVAL);
463 
464  info = track->eac3_priv;
465  size = 2 + 4 * (info->num_ind_sub + 1);
466  buf = av_malloc(size);
467  if (!buf) {
468  size = AVERROR(ENOMEM);
469  goto end;
470  }
471 
472  init_put_bits(&pbc, buf, size);
473  put_bits(&pbc, 13, info->data_rate);
474  put_bits(&pbc, 3, info->num_ind_sub);
475  for (i = 0; i <= info->num_ind_sub; i++) {
476  put_bits(&pbc, 2, info->substream[i].fscod);
477  put_bits(&pbc, 5, info->substream[i].bsid);
478  put_bits(&pbc, 1, 0); /* reserved */
479  put_bits(&pbc, 1, 0); /* asvc */
480  put_bits(&pbc, 3, info->substream[i].bsmod);
481  put_bits(&pbc, 3, info->substream[i].acmod);
482  put_bits(&pbc, 1, info->substream[i].lfeon);
483  put_bits(&pbc, 5, 0); /* reserved */
484  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
485  if (!info->substream[i].num_dep_sub) {
486  put_bits(&pbc, 1, 0); /* reserved */
487  size--;
488  } else {
489  put_bits(&pbc, 9, info->substream[i].chan_loc);
490  }
491  }
492  flush_put_bits(&pbc);
493 
494  avio_wb32(pb, size + 8);
495  ffio_wfourcc(pb, "dec3");
496  avio_write(pb, buf, size);
497 
498  av_free(buf);
499 
500 end:
501  av_free_packet(&info->pkt);
502  av_freep(&track->eac3_priv);
503 
504  return size;
505 }
506 
507 /**
508  * This function writes extradata "as is".
509  * Extradata must be formatted like a valid atom (with size and tag).
510  */
512 {
513  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
514  return track->enc->extradata_size;
515 }
516 
518 {
519  avio_wb32(pb, 10);
520  ffio_wfourcc(pb, "enda");
521  avio_wb16(pb, 1); /* little endian */
522  return 10;
523 }
524 
526 {
527  avio_wb32(pb, 10);
528  ffio_wfourcc(pb, "enda");
529  avio_wb16(pb, 0); /* big endian */
530  return 10;
531 }
532 
533 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
534 {
535  int i = 3;
536  avio_w8(pb, tag);
537  for (; i > 0; i--)
538  avio_w8(pb, (size >> (7 * i)) | 0x80);
539  avio_w8(pb, size & 0x7F);
540 }
541 
542 static unsigned compute_avg_bitrate(MOVTrack *track)
543 {
544  uint64_t size = 0;
545  int i;
546  if (!track->track_duration)
547  return 0;
548  for (i = 0; i < track->entry; i++)
549  size += track->cluster[i].size;
550  return size * 8 * track->timescale / track->track_duration;
551 }
552 
553 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
554 {
555  int64_t pos = avio_tell(pb);
556  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
557  unsigned avg_bitrate;
558 
559  avio_wb32(pb, 0); // size
560  ffio_wfourcc(pb, "esds");
561  avio_wb32(pb, 0); // Version
562 
563  // ES descriptor
564  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
565  avio_wb16(pb, track->track_id);
566  avio_w8(pb, 0x00); // flags (= no flags)
567 
568  // DecoderConfig descriptor
569  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
570 
571  // Object type indication
572  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
573  track->enc->codec_id == AV_CODEC_ID_MP3) &&
574  track->enc->sample_rate > 24000)
575  avio_w8(pb, 0x6B); // 11172-3
576  else
578 
579  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
580  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
581  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
582  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
583  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
584  avio_w8(pb, 0x15); // flags (= Audiostream)
585  else
586  avio_w8(pb, 0x11); // flags (= Visualstream)
587 
588  avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
589 
590  avg_bitrate = compute_avg_bitrate(track);
591  // maxbitrate (FIXME should be max rate in any 1 sec window)
592  avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
593  avio_wb32(pb, avg_bitrate);
594 
595  if (track->vos_len) {
596  // DecoderSpecific info descriptor
597  put_descr(pb, 0x05, track->vos_len);
598  avio_write(pb, track->vos_data, track->vos_len);
599  }
600 
601  // SL descriptor
602  put_descr(pb, 0x06, 1);
603  avio_w8(pb, 0x02);
604  return update_size(pb, pos);
605 }
606 
608 {
609  return codec_id == AV_CODEC_ID_PCM_S24LE ||
610  codec_id == AV_CODEC_ID_PCM_S32LE ||
611  codec_id == AV_CODEC_ID_PCM_F32LE ||
612  codec_id == AV_CODEC_ID_PCM_F64LE;
613 }
614 
616 {
617  return codec_id == AV_CODEC_ID_PCM_S24BE ||
618  codec_id == AV_CODEC_ID_PCM_S32BE ||
619  codec_id == AV_CODEC_ID_PCM_F32BE ||
620  codec_id == AV_CODEC_ID_PCM_F64BE;
621 }
622 
623 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
624 {
625  int ret;
626  int64_t pos = avio_tell(pb);
627  avio_wb32(pb, 0);
628  avio_wl32(pb, track->tag); // store it byteswapped
629  track->enc->codec_tag = av_bswap16(track->tag >> 16);
630  if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
631  return ret;
632  return update_size(pb, pos);
633 }
634 
635 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
636 {
637  int ret;
638  int64_t pos = avio_tell(pb);
639  avio_wb32(pb, 0);
640  ffio_wfourcc(pb, "wfex");
641  if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
642  return ret;
643  return update_size(pb, pos);
644 }
645 
646 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
647 {
648  uint32_t layout_tag, bitmap;
649  int64_t pos = avio_tell(pb);
650 
651  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
652  track->enc->channel_layout,
653  &bitmap);
654  if (!layout_tag) {
655  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
656  "lack of channel information\n");
657  return 0;
658  }
659 
660  if (track->multichannel_as_mono)
661  return 0;
662 
663  avio_wb32(pb, 0); // Size
664  ffio_wfourcc(pb, "chan"); // Type
665  avio_w8(pb, 0); // Version
666  avio_wb24(pb, 0); // Flags
667  avio_wb32(pb, layout_tag); // mChannelLayoutTag
668  avio_wb32(pb, bitmap); // mChannelBitmap
669  avio_wb32(pb, 0); // mNumberChannelDescriptions
670 
671  return update_size(pb, pos);
672 }
673 
674 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
675 {
676  int64_t pos = avio_tell(pb);
677 
678  avio_wb32(pb, 0); /* size */
679  ffio_wfourcc(pb, "wave");
680 
681  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
682  avio_wb32(pb, 12); /* size */
683  ffio_wfourcc(pb, "frma");
684  avio_wl32(pb, track->tag);
685  }
686 
687  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
688  /* useless atom needed by mplayer, ipod, not needed by quicktime */
689  avio_wb32(pb, 12); /* size */
690  ffio_wfourcc(pb, "mp4a");
691  avio_wb32(pb, 0);
692  mov_write_esds_tag(pb, track);
693  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
694  mov_write_enda_tag(pb);
695  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
697  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
698  mov_write_amr_tag(pb, track);
699  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
700  mov_write_ac3_tag(pb, track);
701  } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
702  mov_write_eac3_tag(pb, track);
703  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
704  track->enc->codec_id == AV_CODEC_ID_QDM2) {
705  mov_write_extradata_tag(pb, track);
706  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
708  mov_write_ms_tag(pb, track);
709  }
710 
711  avio_wb32(pb, 8); /* size */
712  avio_wb32(pb, 0); /* null tag */
713 
714  return update_size(pb, pos);
715 }
716 
718 {
719  uint8_t *unescaped;
720  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
721  int unescaped_size, seq_found = 0;
722  int level = 0, interlace = 0;
723  int packet_seq = track->vc1_info.packet_seq;
724  int packet_entry = track->vc1_info.packet_entry;
725  int slices = track->vc1_info.slices;
726  PutBitContext pbc;
727 
728  if (track->start_dts == AV_NOPTS_VALUE) {
729  /* No packets written yet, vc1_info isn't authoritative yet. */
730  /* Assume inline sequence and entry headers. */
731  packet_seq = packet_entry = 1;
733  "moov atom written before any packets, unable to write correct "
734  "dvc1 atom. Set the delay_moov flag to fix this.\n");
735  }
736 
737  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
738  if (!unescaped)
739  return AVERROR(ENOMEM);
740  start = find_next_marker(track->vos_data, end);
741  for (next = start; next < end; start = next) {
742  GetBitContext gb;
743  int size;
744  next = find_next_marker(start + 4, end);
745  size = next - start - 4;
746  if (size <= 0)
747  continue;
748  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
749  init_get_bits(&gb, unescaped, 8 * unescaped_size);
750  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
751  int profile = get_bits(&gb, 2);
752  if (profile != PROFILE_ADVANCED) {
753  av_free(unescaped);
754  return AVERROR(ENOSYS);
755  }
756  seq_found = 1;
757  level = get_bits(&gb, 3);
758  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
759  * width, height */
760  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
761  skip_bits(&gb, 1); /* broadcast */
762  interlace = get_bits1(&gb);
763  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
764  }
765  }
766  if (!seq_found) {
767  av_free(unescaped);
768  return AVERROR(ENOSYS);
769  }
770 
771  init_put_bits(&pbc, buf, 7);
772  /* VC1DecSpecStruc */
773  put_bits(&pbc, 4, 12); /* profile - advanced */
774  put_bits(&pbc, 3, level);
775  put_bits(&pbc, 1, 0); /* reserved */
776  /* VC1AdvDecSpecStruc */
777  put_bits(&pbc, 3, level);
778  put_bits(&pbc, 1, 0); /* cbr */
779  put_bits(&pbc, 6, 0); /* reserved */
780  put_bits(&pbc, 1, !interlace); /* no interlace */
781  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
782  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
783  put_bits(&pbc, 1, !slices); /* no slice code */
784  put_bits(&pbc, 1, 0); /* no bframe */
785  put_bits(&pbc, 1, 0); /* reserved */
786 
787  /* framerate */
788  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
789  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
790  else
791  put_bits32(&pbc, 0xffffffff);
792 
793  flush_put_bits(&pbc);
794 
795  av_free(unescaped);
796 
797  return 0;
798 }
799 
800 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
801 {
802  uint8_t buf[7] = { 0 };
803  int ret;
804 
805  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
806  return ret;
807 
808  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
809  ffio_wfourcc(pb, "dvc1");
810  avio_write(pb, buf, sizeof(buf));
811  avio_write(pb, track->vos_data, track->vos_len);
812 
813  return 0;
814 }
815 
816 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
817 {
818  avio_wb32(pb, track->vos_len + 8);
819  ffio_wfourcc(pb, "glbl");
820  avio_write(pb, track->vos_data, track->vos_len);
821  return 8 + track->vos_len;
822 }
823 
824 /**
825  * Compute flags for 'lpcm' tag.
826  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
827  */
829 {
830  switch (codec_id) {
833  return 11;
836  return 9;
837  case AV_CODEC_ID_PCM_U8:
838  return 10;
842  return 14;
843  case AV_CODEC_ID_PCM_S8:
847  return 12;
848  default:
849  return 0;
850  }
851 }
852 
853 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
854 {
855  int64_t next_dts;
856 
857  if (cluster_idx >= track->entry)
858  return 0;
859 
860  if (cluster_idx + 1 == track->entry)
861  next_dts = track->track_duration + track->start_dts;
862  else
863  next_dts = track->cluster[cluster_idx + 1].dts;
864 
865  next_dts -= track->cluster[cluster_idx].dts;
866 
867  av_assert0(next_dts >= 0);
868  av_assert0(next_dts <= INT_MAX);
869 
870  return next_dts;
871 }
872 
874 {
875  int i, first_duration;
876 
877 // return track->enc->frame_size;
878 
879  /* use 1 for raw PCM */
880  if (!track->audio_vbr)
881  return 1;
882 
883  /* check to see if duration is constant for all clusters */
884  if (!track->entry)
885  return 0;
886  first_duration = get_cluster_duration(track, 0);
887  for (i = 1; i < track->entry; i++) {
888  if (get_cluster_duration(track, i) != first_duration)
889  return 0;
890  }
891  return first_duration;
892 }
893 
894 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
895 {
896  int64_t pos = avio_tell(pb);
897  int version = 0;
898  uint32_t tag = track->tag;
899 
900  if (track->mode == MODE_MOV) {
901  if (track->timescale > UINT16_MAX) {
902  if (mov_get_lpcm_flags(track->enc->codec_id))
903  tag = AV_RL32("lpcm");
904  version = 2;
905  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
906  mov_pcm_be_gt16(track->enc->codec_id) ||
907  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
909  track->enc->codec_id == AV_CODEC_ID_QDM2) {
910  version = 1;
911  }
912  }
913 
914  avio_wb32(pb, 0); /* size */
915  avio_wl32(pb, tag); // store it byteswapped
916  avio_wb32(pb, 0); /* Reserved */
917  avio_wb16(pb, 0); /* Reserved */
918  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
919 
920  /* SoundDescription */
921  avio_wb16(pb, version); /* Version */
922  avio_wb16(pb, 0); /* Revision level */
923  avio_wb32(pb, 0); /* Reserved */
924 
925  if (version == 2) {
926  avio_wb16(pb, 3);
927  avio_wb16(pb, 16);
928  avio_wb16(pb, 0xfffe);
929  avio_wb16(pb, 0);
930  avio_wb32(pb, 0x00010000);
931  avio_wb32(pb, 72);
932  avio_wb64(pb, av_double2int(track->enc->sample_rate));
933  avio_wb32(pb, track->enc->channels);
934  avio_wb32(pb, 0x7F000000);
937  avio_wb32(pb, track->sample_size);
938  avio_wb32(pb, get_samples_per_packet(track));
939  } else {
940  if (track->mode == MODE_MOV) {
941  avio_wb16(pb, track->enc->channels);
942  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
943  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
944  avio_wb16(pb, 8); /* bits per sample */
945  else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
946  avio_wb16(pb, track->enc->bits_per_coded_sample);
947  else
948  avio_wb16(pb, 16);
949  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
950  } else { /* reserved for mp4/3gp */
951  avio_wb16(pb, 2);
952  avio_wb16(pb, 16);
953  avio_wb16(pb, 0);
954  }
955 
956  avio_wb16(pb, 0); /* packet size (= 0) */
957  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
958  track->enc->sample_rate : 0);
959  avio_wb16(pb, 0); /* Reserved */
960  }
961 
962  if (version == 1) { /* SoundDescription V1 extended info */
963  if (mov_pcm_le_gt16(track->enc->codec_id) ||
964  mov_pcm_be_gt16(track->enc->codec_id))
965  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
966  else
967  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
968  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
969  avio_wb32(pb, track->sample_size); /* Bytes per frame */
970  avio_wb32(pb, 2); /* Bytes per sample */
971  }
972 
973  if (track->mode == MODE_MOV &&
974  (track->enc->codec_id == AV_CODEC_ID_AAC ||
975  track->enc->codec_id == AV_CODEC_ID_AC3 ||
976  track->enc->codec_id == AV_CODEC_ID_EAC3 ||
977  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
978  track->enc->codec_id == AV_CODEC_ID_ALAC ||
979  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
981  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
982  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
983  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
984  mov_write_wave_tag(pb, track);
985  else if (track->tag == MKTAG('m','p','4','a'))
986  mov_write_esds_tag(pb, track);
987  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
988  mov_write_amr_tag(pb, track);
989  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
990  mov_write_ac3_tag(pb, track);
991  else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
992  mov_write_eac3_tag(pb, track);
993  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
994  mov_write_extradata_tag(pb, track);
995  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
996  mov_write_wfex_tag(pb, track);
997  else if (track->vos_len > 0)
998  mov_write_glbl_tag(pb, track);
999 
1000  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1001  mov_write_chan_tag(pb, track);
1002 
1003  return update_size(pb, pos);
1004 }
1005 
1007 {
1008  avio_wb32(pb, 0xf); /* size */
1009  ffio_wfourcc(pb, "d263");
1010  ffio_wfourcc(pb, "FFMP");
1011  avio_w8(pb, 0); /* decoder version */
1012  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1013  avio_w8(pb, 0xa); /* level */
1014  avio_w8(pb, 0); /* profile */
1015  return 0xf;
1016 }
1017 
1018 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1019 {
1020  int64_t pos = avio_tell(pb);
1021 
1022  avio_wb32(pb, 0);
1023  ffio_wfourcc(pb, "avcC");
1024  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1025  return update_size(pb, pos);
1026 }
1027 
1028 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1029 {
1030  int64_t pos = avio_tell(pb);
1031 
1032  avio_wb32(pb, 0);
1033  ffio_wfourcc(pb, "hvcC");
1034  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1035  return update_size(pb, pos);
1036 }
1037 
1038 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1039 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1040 {
1041  int i;
1042  int interlaced;
1043  int cid;
1044 
1045  if (track->vos_data && track->vos_len > 0x29) {
1046  if (track->vos_data[0] == 0x00 &&
1047  track->vos_data[1] == 0x00 &&
1048  track->vos_data[2] == 0x02 &&
1049  track->vos_data[3] == 0x80 &&
1050  (track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
1051  /* looks like a DNxHD bit stream */
1052  interlaced = (track->vos_data[5] & 2);
1053  cid = AV_RB32(track->vos_data + 0x28);
1054  } else {
1055  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1056  return 0;
1057  }
1058  } else {
1059  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1060  return 0;
1061  }
1062 
1063  avio_wb32(pb, 24); /* size */
1064  ffio_wfourcc(pb, "ACLR");
1065  ffio_wfourcc(pb, "ACLR");
1066  ffio_wfourcc(pb, "0001");
1067  if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1069  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1070  } else { /* Full range (0-255) */
1071  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1072  }
1073  avio_wb32(pb, 0); /* unknown */
1074 
1075  avio_wb32(pb, 24); /* size */
1076  ffio_wfourcc(pb, "APRG");
1077  ffio_wfourcc(pb, "APRG");
1078  ffio_wfourcc(pb, "0001");
1079  avio_wb32(pb, 1); /* unknown */
1080  avio_wb32(pb, 0); /* unknown */
1081 
1082  avio_wb32(pb, 120); /* size */
1083  ffio_wfourcc(pb, "ARES");
1084  ffio_wfourcc(pb, "ARES");
1085  ffio_wfourcc(pb, "0001");
1086  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1087  avio_wb32(pb, track->enc->width);
1088  /* values below are based on samples created with quicktime and avid codecs */
1089  if (interlaced) {
1090  avio_wb32(pb, track->enc->height / 2);
1091  avio_wb32(pb, 2); /* unknown */
1092  avio_wb32(pb, 0); /* unknown */
1093  avio_wb32(pb, 4); /* unknown */
1094  } else {
1095  avio_wb32(pb, track->enc->height);
1096  avio_wb32(pb, 1); /* unknown */
1097  avio_wb32(pb, 0); /* unknown */
1098  if (track->enc->height == 1080)
1099  avio_wb32(pb, 5); /* unknown */
1100  else
1101  avio_wb32(pb, 6); /* unknown */
1102  }
1103  /* padding */
1104  for (i = 0; i < 10; i++)
1105  avio_wb64(pb, 0);
1106 
1107  return 0;
1108 }
1109 
1110 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1111 {
1112  avio_wb32(pb, 12);
1113  ffio_wfourcc(pb, "DpxE");
1114  if (track->enc->extradata_size >= 12 &&
1115  !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1116  avio_wb32(pb, track->enc->extradata[11]);
1117  } else {
1118  avio_wb32(pb, 1);
1119  }
1120  return 0;
1121 }
1122 
1124 {
1125  int tag = track->enc->codec_tag;
1126 
1128  return 0;
1129 
1130  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1131  else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1132  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1133  else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1134  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1135  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1136  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1137  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1138  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1139  else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1140 
1141  return tag;
1142 }
1143 
1144 static const AVCodecTag codec_ipod_tags[] = {
1145  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1146  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1147  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1148  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1149  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1150  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1151  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1152  { AV_CODEC_ID_NONE, 0 },
1153 };
1154 
1156 {
1157  int tag = track->enc->codec_tag;
1158 
1159  // keep original tag for subs, ipod supports both formats
1160  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1161  (tag == MKTAG('t', 'x', '3', 'g') ||
1162  tag == MKTAG('t', 'e', 'x', 't'))))
1163  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1164 
1165  if (!av_match_ext(s->filename, "m4a") &&
1166  !av_match_ext(s->filename, "m4b") &&
1167  !av_match_ext(s->filename, "m4v"))
1168  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1169  "Quicktime/Ipod might not play the file\n");
1170 
1171  return tag;
1172 }
1173 
1175 {
1176  int tag;
1177 
1178  if (track->enc->width == 720) { /* SD */
1179  if (track->enc->height == 480) { /* NTSC */
1180  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1181  else tag = MKTAG('d','v','c',' ');
1182  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1183  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1184  else tag = MKTAG('d','v','p','p');
1185  } else if (track->enc->height == 720) { /* HD 720 line */
1186  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1187  else tag = MKTAG('d','v','h','p');
1188  } else if (track->enc->height == 1080) { /* HD 1080 line */
1189  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1190  else tag = MKTAG('d','v','h','6');
1191  } else {
1192  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1193  return 0;
1194  }
1195 
1196  return tag;
1197 }
1198 
1200 {
1201  AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1202  /* if the codec time base makes no sense, try to fallback on stream frame rate */
1203  if (av_timecode_check_frame_rate(rate) < 0) {
1204  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1205  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1206  rate = st->avg_frame_rate;
1207  }
1208 
1209  return rate;
1210 }
1211 
1213 {
1214  int tag = track->enc->codec_tag;
1216  AVStream *st = track->st;
1217  int rate = av_q2d(find_fps(s, st));
1218 
1219  if (!tag)
1220  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1221 
1222  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1223  if (track->enc->width == 1280 && track->enc->height == 720) {
1224  if (!interlaced) {
1225  if (rate == 24) tag = MKTAG('x','d','v','4');
1226  else if (rate == 25) tag = MKTAG('x','d','v','5');
1227  else if (rate == 30) tag = MKTAG('x','d','v','1');
1228  else if (rate == 50) tag = MKTAG('x','d','v','a');
1229  else if (rate == 60) tag = MKTAG('x','d','v','9');
1230  }
1231  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1232  if (!interlaced) {
1233  if (rate == 24) tag = MKTAG('x','d','v','6');
1234  else if (rate == 25) tag = MKTAG('x','d','v','7');
1235  else if (rate == 30) tag = MKTAG('x','d','v','8');
1236  } else {
1237  if (rate == 25) tag = MKTAG('x','d','v','3');
1238  else if (rate == 30) tag = MKTAG('x','d','v','2');
1239  }
1240  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1241  if (!interlaced) {
1242  if (rate == 24) tag = MKTAG('x','d','v','d');
1243  else if (rate == 25) tag = MKTAG('x','d','v','e');
1244  else if (rate == 30) tag = MKTAG('x','d','v','f');
1245  } else {
1246  if (rate == 25) tag = MKTAG('x','d','v','c');
1247  else if (rate == 30) tag = MKTAG('x','d','v','b');
1248  }
1249  }
1250  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1251  if (track->enc->width == 1280 && track->enc->height == 720) {
1252  if (!interlaced) {
1253  if (rate == 24) tag = MKTAG('x','d','5','4');
1254  else if (rate == 25) tag = MKTAG('x','d','5','5');
1255  else if (rate == 30) tag = MKTAG('x','d','5','1');
1256  else if (rate == 50) tag = MKTAG('x','d','5','a');
1257  else if (rate == 60) tag = MKTAG('x','d','5','9');
1258  }
1259  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1260  if (!interlaced) {
1261  if (rate == 24) tag = MKTAG('x','d','5','d');
1262  else if (rate == 25) tag = MKTAG('x','d','5','e');
1263  else if (rate == 30) tag = MKTAG('x','d','5','f');
1264  } else {
1265  if (rate == 25) tag = MKTAG('x','d','5','c');
1266  else if (rate == 30) tag = MKTAG('x','d','5','b');
1267  }
1268  }
1269  }
1270 
1271  return tag;
1272 }
1273 
1275 {
1276  int tag = track->enc->codec_tag;
1278  AVStream *st = track->st;
1279  int rate = av_q2d(find_fps(s, st));
1280 
1281  if (!tag)
1282  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1283 
1284  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1285  if (track->enc->width == 960 && track->enc->height == 720) {
1286  if (!interlaced) {
1287  if (rate == 24) tag = MKTAG('a','i','5','p');
1288  else if (rate == 25) tag = MKTAG('a','i','5','q');
1289  else if (rate == 30) tag = MKTAG('a','i','5','p');
1290  else if (rate == 50) tag = MKTAG('a','i','5','q');
1291  else if (rate == 60) tag = MKTAG('a','i','5','p');
1292  }
1293  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1294  if (!interlaced) {
1295  if (rate == 24) tag = MKTAG('a','i','5','3');
1296  else if (rate == 25) tag = MKTAG('a','i','5','2');
1297  else if (rate == 30) tag = MKTAG('a','i','5','3');
1298  } else {
1299  if (rate == 50) tag = MKTAG('a','i','5','5');
1300  else if (rate == 60) tag = MKTAG('a','i','5','6');
1301  }
1302  }
1303  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1304  if (track->enc->width == 1280 && track->enc->height == 720) {
1305  if (!interlaced) {
1306  if (rate == 24) tag = MKTAG('a','i','1','p');
1307  else if (rate == 25) tag = MKTAG('a','i','1','q');
1308  else if (rate == 30) tag = MKTAG('a','i','1','p');
1309  else if (rate == 50) tag = MKTAG('a','i','1','q');
1310  else if (rate == 60) tag = MKTAG('a','i','1','p');
1311  }
1312  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1313  if (!interlaced) {
1314  if (rate == 24) tag = MKTAG('a','i','1','3');
1315  else if (rate == 25) tag = MKTAG('a','i','1','2');
1316  else if (rate == 30) tag = MKTAG('a','i','1','3');
1317  } else {
1318  if (rate == 25) tag = MKTAG('a','i','1','5');
1319  else if (rate == 50) tag = MKTAG('a','i','1','5');
1320  else if (rate == 60) tag = MKTAG('a','i','1','6');
1321  }
1322  } else if ( track->enc->width == 4096 && track->enc->height == 2160
1323  || track->enc->width == 3840 && track->enc->height == 2160
1324  || track->enc->width == 2048 && track->enc->height == 1080) {
1325  tag = MKTAG('a','i','v','x');
1326  }
1327  }
1328 
1329  return tag;
1330 }
1331 
1332 static const struct {
1334  uint32_t tag;
1335  unsigned bps;
1336 } mov_pix_fmt_tags[] = {
1337  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1338  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1339  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1340  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1341  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1342  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1343  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1344  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1345  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1346  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1347  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1348  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1349  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1350  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1351  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1352 };
1353 
1355 {
1356  int tag = track->enc->codec_tag;
1357  int i;
1358  enum AVPixelFormat pix_fmt;
1359 
1360  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1361  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1362  tag = mov_pix_fmt_tags[i].tag;
1363  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1364  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1365  break;
1366  }
1367  }
1368 
1370  track->enc->bits_per_coded_sample);
1371  if (tag == MKTAG('r','a','w',' ') &&
1372  track->enc->pix_fmt != pix_fmt &&
1373  track->enc->pix_fmt != AV_PIX_FMT_NONE)
1374  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1375  av_get_pix_fmt_name(track->enc->pix_fmt));
1376  return tag;
1377 }
1378 
1380 {
1381  int tag = track->enc->codec_tag;
1382 
1383  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1384  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1385  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1386  track->enc->codec_id == AV_CODEC_ID_H263 ||
1387  track->enc->codec_id == AV_CODEC_ID_H264 ||
1388  track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1389  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1390  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1391  tag = mov_get_dv_codec_tag(s, track);
1392  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1393  tag = mov_get_rawvideo_codec_tag(s, track);
1394  else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1395  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1396  else if (track->enc->codec_id == AV_CODEC_ID_H264)
1397  tag = mov_get_h264_codec_tag(s, track);
1398  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1400  if (!tag) { // if no mac fcc found, try with Microsoft tags
1402  if (tag)
1403  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1404  "the file may be unplayable!\n");
1405  }
1406  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1408  if (!tag) { // if no mac fcc found, try with Microsoft tags
1409  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1410  if (ms_tag) {
1411  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1412  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1413  "the file may be unplayable!\n");
1414  }
1415  }
1416  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1418  }
1419 
1420  return tag;
1421 }
1422 
1423 static const AVCodecTag codec_3gp_tags[] = {
1424  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1425  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1426  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1427  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1428  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1429  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1430  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1431  { AV_CODEC_ID_NONE, 0 },
1432 };
1433 
1434 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1435  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1436  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1437  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1438  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1439  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1440  { AV_CODEC_ID_NONE, 0 },
1441 };
1442 
1444 {
1445  int tag;
1446 
1447  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1448  tag = mp4_get_codec_tag(s, track);
1449  else if (track->mode == MODE_ISM) {
1450  tag = mp4_get_codec_tag(s, track);
1451  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1452  tag = MKTAG('w', 'm', 'a', ' ');
1453  } else if (track->mode == MODE_IPOD)
1454  tag = ipod_get_codec_tag(s, track);
1455  else if (track->mode & MODE_3GP)
1456  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1457  else if (track->mode == MODE_F4V)
1458  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1459  else
1460  tag = mov_get_codec_tag(s, track);
1461 
1462  return tag;
1463 }
1464 
1465 /** Write uuid atom.
1466  * Needed to make file play in iPods running newest firmware
1467  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1468  */
1470 {
1471  avio_wb32(pb, 28);
1472  ffio_wfourcc(pb, "uuid");
1473  avio_wb32(pb, 0x6b6840f2);
1474  avio_wb32(pb, 0x5f244fc5);
1475  avio_wb32(pb, 0xba39a51b);
1476  avio_wb32(pb, 0xcf0323f3);
1477  avio_wb32(pb, 0x0);
1478  return 28;
1479 }
1480 
1481 static const uint16_t fiel_data[] = {
1482  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1483 };
1484 
1485 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1486 {
1487  unsigned mov_field_order = 0;
1488  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1489  mov_field_order = fiel_data[track->enc->field_order];
1490  else
1491  return 0;
1492  avio_wb32(pb, 10);
1493  ffio_wfourcc(pb, "fiel");
1494  avio_wb16(pb, mov_field_order);
1495  return 10;
1496 }
1497 
1499 {
1500  int64_t pos = avio_tell(pb);
1501  avio_wb32(pb, 0); /* size */
1502  avio_wl32(pb, track->tag); // store it byteswapped
1503  avio_wb32(pb, 0); /* Reserved */
1504  avio_wb16(pb, 0); /* Reserved */
1505  avio_wb16(pb, 1); /* Data-reference index */
1506 
1507  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1508  mov_write_esds_tag(pb, track);
1509  else if (track->enc->extradata_size)
1510  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1511 
1512  return update_size(pb, pos);
1513 }
1514 
1515 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1516 {
1517  AVRational sar;
1518  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1519  track->enc->sample_aspect_ratio.den, INT_MAX);
1520 
1521  avio_wb32(pb, 16);
1522  ffio_wfourcc(pb, "pasp");
1523  avio_wb32(pb, sar.num);
1524  avio_wb32(pb, sar.den);
1525  return 16;
1526 }
1527 
1528 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1529 {
1530  uint32_t gama = 0;
1531  if (gamma <= 0.0)
1532  {
1533  gamma = avpriv_get_gamma_from_trc(track->enc->color_trc);
1534  }
1535  av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1536 
1537  if (gamma > 1e-6) {
1538  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1539  av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
1540 
1541  av_assert0(track->mode == MODE_MOV);
1542  avio_wb32(pb, 12);
1543  ffio_wfourcc(pb, "gama");
1544  avio_wb32(pb, gama);
1545  return 12;
1546  }
1547  else {
1548  av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1549  }
1550  return 0;
1551 }
1552 
1553 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1554 {
1555  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1556  // Ref (MP4): ISO/IEC 14496-12:2012
1557 
1558  if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1559  track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1560  track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1561  if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1562  || (track->enc->width == 1280 && track->enc->height == 720)) {
1563  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1565  } else if (track->enc->width == 720 && track->height == 576) {
1566  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1568  } else if (track->enc->width == 720 &&
1569  (track->height == 486 || track->height == 480)) {
1570  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1572  } else {
1573  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1574  }
1575  switch (track->enc->color_primaries) {
1576  case AVCOL_PRI_BT709:
1577  track->enc->color_trc = AVCOL_TRC_BT709;
1578  track->enc->colorspace = AVCOL_SPC_BT709;
1579  break;
1580  case AVCOL_PRI_SMPTE170M:
1581  case AVCOL_PRI_BT470BG:
1582  track->enc->color_trc = AVCOL_TRC_BT709;
1584  break;
1585  }
1586  }
1587 
1588  /* We should only ever be called by MOV or MP4. */
1589  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1590 
1591  avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1592  ffio_wfourcc(pb, "colr");
1593  if (track->mode == MODE_MP4)
1594  ffio_wfourcc(pb, "nclx");
1595  else
1596  ffio_wfourcc(pb, "nclc");
1597  switch (track->enc->color_primaries) {
1598  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1599  case AVCOL_PRI_SMPTE170M:
1600  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1601  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1602  default: avio_wb16(pb, 2);
1603  }
1604  switch (track->enc->color_trc) {
1605  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1606  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1607  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1608  default: avio_wb16(pb, 2);
1609  }
1610  switch (track->enc->colorspace) {
1611  case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1612  case AVCOL_SPC_BT470BG:
1613  case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1614  case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1615  default: avio_wb16(pb, 2);
1616  }
1617 
1618  if (track->mode == MODE_MP4) {
1619  int full_range = track->enc->color_range == AVCOL_RANGE_JPEG;
1620  avio_w8(pb, full_range << 7);
1621  return 19;
1622  } else {
1623  return 18;
1624  }
1625 }
1626 
1627 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1628 {
1629  AVDictionaryEntry *encoder;
1630  int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1631  || (track->enc->width == 1440 && track->enc->height == 1080)
1632  || (track->enc->width == 1920 && track->enc->height == 1080);
1633 
1634  if (track->mode == MODE_MOV &&
1635  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1636  av_strlcpy(compressor_name, encoder->value, 32);
1637  } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1639  AVStream *st = track->st;
1640  int rate = av_q2d(find_fps(NULL, st));
1641  av_strlcatf(compressor_name, len, "XDCAM");
1642  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1643  av_strlcatf(compressor_name, len, " HD422");
1644  } else if(track->enc->width == 1440) {
1645  av_strlcatf(compressor_name, len, " HD");
1646  } else
1647  av_strlcatf(compressor_name, len, " EX");
1648 
1649  av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1650 
1651  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1652  }
1653 }
1654 
1656 {
1657  int64_t pos = avio_tell(pb);
1658  char compressor_name[32] = { 0 };
1659  int avid = 0;
1660 
1661  avio_wb32(pb, 0); /* size */
1662  avio_wl32(pb, track->tag); // store it byteswapped
1663  avio_wb32(pb, 0); /* Reserved */
1664  avio_wb16(pb, 0); /* Reserved */
1665  avio_wb16(pb, 1); /* Data-reference index */
1666 
1667  avio_wb16(pb, 0); /* Codec stream version */
1668  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1669  if (track->mode == MODE_MOV) {
1670  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1671  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1672  avio_wb32(pb, 0); /* Temporal Quality */
1673  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1674  } else {
1675  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1676  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1677  }
1678  } else {
1679  avio_wb32(pb, 0); /* Reserved */
1680  avio_wb32(pb, 0); /* Reserved */
1681  avio_wb32(pb, 0); /* Reserved */
1682  }
1683  avio_wb16(pb, track->enc->width); /* Video width */
1684  avio_wb16(pb, track->height); /* Video height */
1685  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1686  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1687  avio_wb32(pb, 0); /* Data size (= 0) */
1688  avio_wb16(pb, 1); /* Frame count (= 1) */
1689 
1690  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1691  find_compressor(compressor_name, 32, track);
1692  avio_w8(pb, strlen(compressor_name));
1693  avio_write(pb, compressor_name, 31);
1694 
1695  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1696  avio_wb16(pb, track->enc->bits_per_coded_sample);
1697  else
1698  avio_wb16(pb, 0x18); /* Reserved */
1699  avio_wb16(pb, 0xffff); /* Reserved */
1700  if (track->tag == MKTAG('m','p','4','v'))
1701  mov_write_esds_tag(pb, track);
1702  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1703  mov_write_d263_tag(pb);
1704  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1705  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1706  mov_write_extradata_tag(pb, track);
1707  avio_wb32(pb, 0);
1708  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1709  mov_write_avid_tag(pb, track);
1710  avid = 1;
1711  } else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1712  mov_write_hvcc_tag(pb, track);
1713  else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1714  mov_write_avcc_tag(pb, track);
1715  if (track->mode == MODE_IPOD)
1717  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1718  mov_write_dvc1_tag(pb, track);
1719  else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1720  track->enc->codec_id == AV_CODEC_ID_VP6A) {
1721  /* Don't write any potential extradata here - the cropping
1722  * is signalled via the normal width/height fields. */
1723  } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1724  if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1725  mov_write_dpxe_tag(pb, track);
1726  } else if (track->vos_len > 0)
1727  mov_write_glbl_tag(pb, track);
1728 
1729  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1730  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1731  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1732  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1733  mov_write_fiel_tag(pb, track);
1734 
1735  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1736  if (track->mode == MODE_MOV)
1737  mov_write_gama_tag(pb, track, mov->gamma);
1738  else
1739  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1740  }
1741  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1742  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1743  mov_write_colr_tag(pb, track);
1744  else
1745  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1746  }
1747 
1748  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1749  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1750  mov_write_pasp_tag(pb, track);
1751  }
1752 
1753  /* extra padding for avid stsd */
1754  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1755  if (avid)
1756  avio_wb32(pb, 0);
1757 
1758  return update_size(pb, pos);
1759 }
1760 
1761 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1762 {
1763  int64_t pos = avio_tell(pb);
1764  avio_wb32(pb, 0); /* size */
1765  ffio_wfourcc(pb, "rtp ");
1766  avio_wb32(pb, 0); /* Reserved */
1767  avio_wb16(pb, 0); /* Reserved */
1768  avio_wb16(pb, 1); /* Data-reference index */
1769 
1770  avio_wb16(pb, 1); /* Hint track version */
1771  avio_wb16(pb, 1); /* Highest compatible version */
1772  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1773 
1774  avio_wb32(pb, 12); /* size */
1775  ffio_wfourcc(pb, "tims");
1776  avio_wb32(pb, track->timescale);
1777 
1778  return update_size(pb, pos);
1779 }
1780 
1781 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1782 {
1783  uint64_t str_size =strlen(reel_name);
1784  int64_t pos = avio_tell(pb);
1785 
1786  if (str_size >= UINT16_MAX){
1787  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1788  avio_wb16(pb, 0);
1789  return AVERROR(EINVAL);
1790  }
1791 
1792  avio_wb32(pb, 0); /* size */
1793  ffio_wfourcc(pb, "name"); /* Data format */
1794  avio_wb16(pb, str_size); /* string size */
1795  avio_wb16(pb, track->language); /* langcode */
1796  avio_write(pb, reel_name, str_size); /* reel name */
1797  return update_size(pb,pos);
1798 }
1799 
1800 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1801 {
1802  int64_t pos = avio_tell(pb);
1803 #if 1
1804  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1805  int nb_frames = ROUNDED_DIV(track->enc->time_base.den, track->enc->time_base.num);
1806  AVDictionaryEntry *t = NULL;
1807 
1808  if (nb_frames > 255) {
1809  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1810  return AVERROR(EINVAL);
1811  }
1812 
1813  avio_wb32(pb, 0); /* size */
1814  ffio_wfourcc(pb, "tmcd"); /* Data format */
1815  avio_wb32(pb, 0); /* Reserved */
1816  avio_wb32(pb, 1); /* Data reference index */
1817  avio_wb32(pb, 0); /* Flags */
1818  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1819  avio_wb32(pb, track->timescale); /* Timescale */
1820  avio_wb32(pb, frame_duration); /* Frame duration */
1821  avio_w8(pb, nb_frames); /* Number of frames */
1822  avio_w8(pb, 0); /* Reserved */
1823 
1824  if (track->st)
1825  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1826 
1827  if (t && utf8len(t->value))
1828  mov_write_source_reference_tag(pb, track, t->value);
1829  else
1830  avio_wb16(pb, 0); /* zero size */
1831 #else
1832 
1833  avio_wb32(pb, 0); /* size */
1834  ffio_wfourcc(pb, "tmcd"); /* Data format */
1835  avio_wb32(pb, 0); /* Reserved */
1836  avio_wb32(pb, 1); /* Data reference index */
1837  if (track->enc->extradata_size)
1838  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1839 #endif
1840  return update_size(pb, pos);
1841 }
1842 
1844 {
1845  int64_t pos = avio_tell(pb);
1846  avio_wb32(pb, 0); /* size */
1847  ffio_wfourcc(pb, "stsd");
1848  avio_wb32(pb, 0); /* version & flags */
1849  avio_wb32(pb, 1); /* entry count */
1850  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1851  mov_write_video_tag(pb, mov, track);
1852  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1853  mov_write_audio_tag(pb, track);
1854  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1855  mov_write_subtitle_tag(pb, track);
1856  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1857  mov_write_rtp_tag(pb, track);
1858  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1859  mov_write_tmcd_tag(pb, track);
1860  return update_size(pb, pos);
1861 }
1862 
1863 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1864 {
1865  MOVStts *ctts_entries;
1866  uint32_t entries = 0;
1867  uint32_t atom_size;
1868  int i;
1869 
1870  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1871  if (!ctts_entries)
1872  return AVERROR(ENOMEM);
1873  ctts_entries[0].count = 1;
1874  ctts_entries[0].duration = track->cluster[0].cts;
1875  for (i = 1; i < track->entry; i++) {
1876  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1877  ctts_entries[entries].count++; /* compress */
1878  } else {
1879  entries++;
1880  ctts_entries[entries].duration = track->cluster[i].cts;
1881  ctts_entries[entries].count = 1;
1882  }
1883  }
1884  entries++; /* last one */
1885  atom_size = 16 + (entries * 8);
1886  avio_wb32(pb, atom_size); /* size */
1887  ffio_wfourcc(pb, "ctts");
1888  avio_wb32(pb, 0); /* version & flags */
1889  avio_wb32(pb, entries); /* entry count */
1890  for (i = 0; i < entries; i++) {
1891  avio_wb32(pb, ctts_entries[i].count);
1892  avio_wb32(pb, ctts_entries[i].duration);
1893  }
1894  av_free(ctts_entries);
1895  return atom_size;
1896 }
1897 
1898 /* Time to sample atom */
1899 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1900 {
1901  MOVStts *stts_entries = NULL;
1902  uint32_t entries = -1;
1903  uint32_t atom_size;
1904  int i;
1905 
1906  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1907  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1908  if (!stts_entries)
1909  return AVERROR(ENOMEM);
1910  stts_entries[0].count = track->sample_count;
1911  stts_entries[0].duration = 1;
1912  entries = 1;
1913  } else {
1914  if (track->entry) {
1915  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
1916  if (!stts_entries)
1917  return AVERROR(ENOMEM);
1918  }
1919  for (i = 0; i < track->entry; i++) {
1920  int duration = get_cluster_duration(track, i);
1921  if (i && duration == stts_entries[entries].duration) {
1922  stts_entries[entries].count++; /* compress */
1923  } else {
1924  entries++;
1925  stts_entries[entries].duration = duration;
1926  stts_entries[entries].count = 1;
1927  }
1928  }
1929  entries++; /* last one */
1930  }
1931  atom_size = 16 + (entries * 8);
1932  avio_wb32(pb, atom_size); /* size */
1933  ffio_wfourcc(pb, "stts");
1934  avio_wb32(pb, 0); /* version & flags */
1935  avio_wb32(pb, entries); /* entry count */
1936  for (i = 0; i < entries; i++) {
1937  avio_wb32(pb, stts_entries[i].count);
1938  avio_wb32(pb, stts_entries[i].duration);
1939  }
1940  av_free(stts_entries);
1941  return atom_size;
1942 }
1943 
1945 {
1946  avio_wb32(pb, 28); /* size */
1947  ffio_wfourcc(pb, "dref");
1948  avio_wb32(pb, 0); /* version & flags */
1949  avio_wb32(pb, 1); /* entry count */
1950 
1951  avio_wb32(pb, 0xc); /* size */
1952  //FIXME add the alis and rsrc atom
1953  ffio_wfourcc(pb, "url ");
1954  avio_wb32(pb, 1); /* version & flags */
1955 
1956  return 28;
1957 }
1958 
1960 {
1961  int64_t pos = avio_tell(pb);
1962  int ret;
1963 
1964  avio_wb32(pb, 0); /* size */
1965  ffio_wfourcc(pb, "stbl");
1966  mov_write_stsd_tag(pb, mov, track);
1967  mov_write_stts_tag(pb, track);
1968  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1969  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1970  track->has_keyframes && track->has_keyframes < track->entry)
1971  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1972  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1974  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1975  track->flags & MOV_TRACK_CTTS && track->entry) {
1976 
1977  if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1978  return ret;
1979  }
1980  mov_write_stsc_tag(pb, track);
1981  mov_write_stsz_tag(pb, track);
1982  mov_write_stco_tag(pb, track);
1983  return update_size(pb, pos);
1984 }
1985 
1987 {
1988  int64_t pos = avio_tell(pb);
1989  avio_wb32(pb, 0); /* size */
1990  ffio_wfourcc(pb, "dinf");
1991  mov_write_dref_tag(pb);
1992  return update_size(pb, pos);
1993 }
1994 
1996 {
1997  avio_wb32(pb, 12);
1998  ffio_wfourcc(pb, "nmhd");
1999  avio_wb32(pb, 0);
2000  return 12;
2001 }
2002 
2003 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2004 {
2005  int64_t pos = avio_tell(pb);
2006  const char *font = "Lucida Grande";
2007  avio_wb32(pb, 0); /* size */
2008  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2009  avio_wb32(pb, 0); /* version & flags */
2010  avio_wb16(pb, 0); /* text font */
2011  avio_wb16(pb, 0); /* text face */
2012  avio_wb16(pb, 12); /* text size */
2013  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2014  avio_wb16(pb, 0x0000); /* text color (red) */
2015  avio_wb16(pb, 0x0000); /* text color (green) */
2016  avio_wb16(pb, 0x0000); /* text color (blue) */
2017  avio_wb16(pb, 0xffff); /* background color (red) */
2018  avio_wb16(pb, 0xffff); /* background color (green) */
2019  avio_wb16(pb, 0xffff); /* background color (blue) */
2020  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2021  avio_write(pb, font, strlen(font)); /* font name */
2022  return update_size(pb, pos);
2023 }
2024 
2025 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2026 {
2027  int64_t pos = avio_tell(pb);
2028  avio_wb32(pb, 0); /* size */
2029  ffio_wfourcc(pb, "gmhd");
2030  avio_wb32(pb, 0x18); /* gmin size */
2031  ffio_wfourcc(pb, "gmin");/* generic media info */
2032  avio_wb32(pb, 0); /* version & flags */
2033  avio_wb16(pb, 0x40); /* graphics mode = */
2034  avio_wb16(pb, 0x8000); /* opColor (r?) */
2035  avio_wb16(pb, 0x8000); /* opColor (g?) */
2036  avio_wb16(pb, 0x8000); /* opColor (b?) */
2037  avio_wb16(pb, 0); /* balance */
2038  avio_wb16(pb, 0); /* reserved */
2039 
2040  /*
2041  * This special text atom is required for
2042  * Apple Quicktime chapters. The contents
2043  * don't appear to be documented, so the
2044  * bytes are copied verbatim.
2045  */
2046  if (track->tag != MKTAG('c','6','0','8')) {
2047  avio_wb32(pb, 0x2C); /* size */
2048  ffio_wfourcc(pb, "text");
2049  avio_wb16(pb, 0x01);
2050  avio_wb32(pb, 0x00);
2051  avio_wb32(pb, 0x00);
2052  avio_wb32(pb, 0x00);
2053  avio_wb32(pb, 0x01);
2054  avio_wb32(pb, 0x00);
2055  avio_wb32(pb, 0x00);
2056  avio_wb32(pb, 0x00);
2057  avio_wb32(pb, 0x00004000);
2058  avio_wb16(pb, 0x0000);
2059  }
2060 
2061  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2062  int64_t tmcd_pos = avio_tell(pb);
2063  avio_wb32(pb, 0); /* size */
2064  ffio_wfourcc(pb, "tmcd");
2065  mov_write_tcmi_tag(pb, track);
2066  update_size(pb, tmcd_pos);
2067  }
2068  return update_size(pb, pos);
2069 }
2070 
2072 {
2073  avio_wb32(pb, 16); /* size */
2074  ffio_wfourcc(pb, "smhd");
2075  avio_wb32(pb, 0); /* version & flags */
2076  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2077  avio_wb16(pb, 0); /* reserved */
2078  return 16;
2079 }
2080 
2082 {
2083  avio_wb32(pb, 0x14); /* size (always 0x14) */
2084  ffio_wfourcc(pb, "vmhd");
2085  avio_wb32(pb, 0x01); /* version & flags */
2086  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2087  return 0x14;
2088 }
2089 
2090 static int is_clcp_track(MOVTrack *track)
2091 {
2092  return track->tag == MKTAG('c','7','0','8') ||
2093  track->tag == MKTAG('c','6','0','8');
2094 }
2095 
2096 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2097 {
2098  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2099  int64_t pos = avio_tell(pb);
2100 
2101  hdlr = "dhlr";
2102  hdlr_type = "url ";
2103  descr = "DataHandler";
2104 
2105  if (track) {
2106  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2107  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2108  hdlr_type = "vide";
2109  descr = "VideoHandler";
2110  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2111  hdlr_type = "soun";
2112  descr = "SoundHandler";
2113  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2114  if (is_clcp_track(track)) {
2115  hdlr_type = "clcp";
2116  descr = "ClosedCaptionHandler";
2117  } else {
2118  if (track->tag == MKTAG('t','x','3','g')) {
2119  hdlr_type = "sbtl";
2120  } else if (track->tag == MKTAG('m','p','4','s')) {
2121  hdlr_type = "subp";
2122  } else {
2123  hdlr_type = "text";
2124  }
2125  descr = "SubtitleHandler";
2126  }
2127  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2128  hdlr_type = "hint";
2129  descr = "HintHandler";
2130  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2131  hdlr_type = "tmcd";
2132  descr = "TimeCodeHandler";
2133  } else {
2134  char tag_buf[32];
2135  av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2136  track->enc->codec_tag);
2137 
2138  av_log(track->enc, AV_LOG_WARNING,
2139  "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2140  tag_buf, track->enc->codec_tag);
2141  }
2142  if (track->st) {
2143  // hdlr.name is used by some players to identify the content title
2144  // of the track. So if an alternate handler description is
2145  // specified, use it.
2146  AVDictionaryEntry *t;
2147  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2148  if (t && utf8len(t->value))
2149  descr = t->value;
2150  }
2151  }
2152 
2153  avio_wb32(pb, 0); /* size */
2154  ffio_wfourcc(pb, "hdlr");
2155  avio_wb32(pb, 0); /* Version & flags */
2156  avio_write(pb, hdlr, 4); /* handler */
2157  ffio_wfourcc(pb, hdlr_type); /* handler type */
2158  avio_wb32(pb, 0); /* reserved */
2159  avio_wb32(pb, 0); /* reserved */
2160  avio_wb32(pb, 0); /* reserved */
2161  if (!track || track->mode == MODE_MOV)
2162  avio_w8(pb, strlen(descr)); /* pascal string */
2163  avio_write(pb, descr, strlen(descr)); /* handler description */
2164  if (track && track->mode != MODE_MOV)
2165  avio_w8(pb, 0); /* c string */
2166  return update_size(pb, pos);
2167 }
2168 
2170 {
2171  /* This atom must be present, but leaving the values at zero
2172  * seems harmless. */
2173  avio_wb32(pb, 28); /* size */
2174  ffio_wfourcc(pb, "hmhd");
2175  avio_wb32(pb, 0); /* version, flags */
2176  avio_wb16(pb, 0); /* maxPDUsize */
2177  avio_wb16(pb, 0); /* avgPDUsize */
2178  avio_wb32(pb, 0); /* maxbitrate */
2179  avio_wb32(pb, 0); /* avgbitrate */
2180  avio_wb32(pb, 0); /* reserved */
2181  return 28;
2182 }
2183 
2185 {
2186  int64_t pos = avio_tell(pb);
2187  int ret;
2188 
2189  avio_wb32(pb, 0); /* size */
2190  ffio_wfourcc(pb, "minf");
2191  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2192  mov_write_vmhd_tag(pb);
2193  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2194  mov_write_smhd_tag(pb);
2195  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2196  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2197  mov_write_gmhd_tag(pb, track);
2198  } else {
2199  mov_write_nmhd_tag(pb);
2200  }
2201  } else if (track->tag == MKTAG('r','t','p',' ')) {
2202  mov_write_hmhd_tag(pb);
2203  } else if (track->tag == MKTAG('t','m','c','d')) {
2204  mov_write_gmhd_tag(pb, track);
2205  }
2206  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2207  mov_write_hdlr_tag(pb, NULL);
2208  mov_write_dinf_tag(pb);
2209  if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2210  return ret;
2211  return update_size(pb, pos);
2212 }
2213 
2215  MOVTrack *track)
2216 {
2217  int version = track->track_duration < INT32_MAX ? 0 : 1;
2218 
2219  if (track->mode == MODE_ISM)
2220  version = 1;
2221 
2222  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2223  ffio_wfourcc(pb, "mdhd");
2224  avio_w8(pb, version);
2225  avio_wb24(pb, 0); /* flags */
2226  if (version == 1) {
2227  avio_wb64(pb, track->time);
2228  avio_wb64(pb, track->time);
2229  } else {
2230  avio_wb32(pb, track->time); /* creation time */
2231  avio_wb32(pb, track->time); /* modification time */
2232  }
2233  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2234  if (!track->entry && mov->mode == MODE_ISM)
2235  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2236  else if (!track->entry)
2237  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2238  else
2239  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2240  avio_wb16(pb, track->language); /* language */
2241  avio_wb16(pb, 0); /* reserved (quality) */
2242 
2243  if (version != 0 && track->mode == MODE_MOV) {
2245  "FATAL error, file duration too long for timebase, this file will not be\n"
2246  "playable with quicktime. Choose a different timebase or a different\n"
2247  "container format\n");
2248  }
2249 
2250  return 32;
2251 }
2252 
2254  MOVTrack *track)
2255 {
2256  int64_t pos = avio_tell(pb);
2257  int ret;
2258 
2259  avio_wb32(pb, 0); /* size */
2260  ffio_wfourcc(pb, "mdia");
2261  mov_write_mdhd_tag(pb, mov, track);
2262  mov_write_hdlr_tag(pb, track);
2263  if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2264  return ret;
2265  return update_size(pb, pos);
2266 }
2267 
2268 /* transformation matrix
2269  |a b u|
2270  |c d v|
2271  |tx ty w| */
2272 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2273  int16_t d, int16_t tx, int16_t ty)
2274 {
2275  avio_wb32(pb, a << 16); /* 16.16 format */
2276  avio_wb32(pb, b << 16); /* 16.16 format */
2277  avio_wb32(pb, 0); /* u in 2.30 format */
2278  avio_wb32(pb, c << 16); /* 16.16 format */
2279  avio_wb32(pb, d << 16); /* 16.16 format */
2280  avio_wb32(pb, 0); /* v in 2.30 format */
2281  avio_wb32(pb, tx << 16); /* 16.16 format */
2282  avio_wb32(pb, ty << 16); /* 16.16 format */
2283  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2284 }
2285 
2287  MOVTrack *track, AVStream *st)
2288 {
2290  track->timescale, AV_ROUND_UP);
2291  int version = duration < INT32_MAX ? 0 : 1;
2293  int rotation = 0;
2294  int group = 0;
2295 
2296  uint32_t *display_matrix = NULL;
2297  int display_matrix_size, i;
2298 
2299  if (st) {
2300  if (mov->per_stream_grouping)
2301  group = st->index;
2302  else
2303  group = st->codec->codec_type;
2304 
2305  display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2306  &display_matrix_size);
2307  if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2308  display_matrix = NULL;
2309  }
2310 
2311  if (track->flags & MOV_TRACK_ENABLED)
2312  flags |= MOV_TKHD_FLAG_ENABLED;
2313 
2314  if (track->mode == MODE_ISM)
2315  version = 1;
2316 
2317  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2318  ffio_wfourcc(pb, "tkhd");
2319  avio_w8(pb, version);
2320  avio_wb24(pb, flags);
2321  if (version == 1) {
2322  avio_wb64(pb, track->time);
2323  avio_wb64(pb, track->time);
2324  } else {
2325  avio_wb32(pb, track->time); /* creation time */
2326  avio_wb32(pb, track->time); /* modification time */
2327  }
2328  avio_wb32(pb, track->track_id); /* track-id */
2329  avio_wb32(pb, 0); /* reserved */
2330  if (!track->entry && mov->mode == MODE_ISM)
2331  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2332  else if (!track->entry)
2333  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2334  else
2335  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2336 
2337  avio_wb32(pb, 0); /* reserved */
2338  avio_wb32(pb, 0); /* reserved */
2339  avio_wb16(pb, 0); /* layer */
2340  avio_wb16(pb, group); /* alternate group) */
2341  /* Volume, only for audio */
2342  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2343  avio_wb16(pb, 0x0100);
2344  else
2345  avio_wb16(pb, 0);
2346  avio_wb16(pb, 0); /* reserved */
2347 
2348  /* Matrix structure */
2349  if (st && st->metadata) {
2350  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2351  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2352  }
2353  if (display_matrix) {
2354  for (i = 0; i < 9; i++)
2355  avio_wb32(pb, display_matrix[i]);
2356  } else if (rotation == 90) {
2357  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2358  } else if (rotation == 180) {
2359  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2360  } else if (rotation == 270) {
2361  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2362  } else {
2363  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2364  }
2365  /* Track width and height, for visual only */
2366  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2367  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2368  if (track->mode == MODE_MOV) {
2369  avio_wb32(pb, track->enc->width << 16);
2370  avio_wb32(pb, track->height << 16);
2371  } else {
2372  int64_t track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2373  track->enc->width * 0x10000LL,
2374  st->sample_aspect_ratio.den);
2375  if (!track_width_1616 ||
2376  track->height != track->enc->height ||
2377  track_width_1616 > UINT32_MAX)
2378  track_width_1616 = track->enc->width * 0x10000U;
2379  avio_wb32(pb, track_width_1616);
2380  avio_wb32(pb, track->height * 0x10000U);
2381  }
2382  } else {
2383  avio_wb32(pb, 0);
2384  avio_wb32(pb, 0);
2385  }
2386  return 0x5c;
2387 }
2388 
2389 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2390 {
2392  track->enc->sample_aspect_ratio.den);
2393 
2394  int64_t pos = avio_tell(pb);
2395 
2396  avio_wb32(pb, 0); /* size */
2397  ffio_wfourcc(pb, "tapt");
2398 
2399  avio_wb32(pb, 20);
2400  ffio_wfourcc(pb, "clef");
2401  avio_wb32(pb, 0);
2402  avio_wb32(pb, width << 16);
2403  avio_wb32(pb, track->enc->height << 16);
2404 
2405  avio_wb32(pb, 20);
2406  ffio_wfourcc(pb, "prof");
2407  avio_wb32(pb, 0);
2408  avio_wb32(pb, width << 16);
2409  avio_wb32(pb, track->enc->height << 16);
2410 
2411  avio_wb32(pb, 20);
2412  ffio_wfourcc(pb, "enof");
2413  avio_wb32(pb, 0);
2414  avio_wb32(pb, track->enc->width << 16);
2415  avio_wb32(pb, track->enc->height << 16);
2416 
2417  return update_size(pb, pos);
2418 }
2419 
2420 // This box seems important for the psp playback ... without it the movie seems to hang
2422  MOVTrack *track)
2423 {
2425  track->timescale, AV_ROUND_UP);
2426  int version = duration < INT32_MAX ? 0 : 1;
2427  int entry_size, entry_count, size;
2428  int64_t delay, start_ct = track->start_cts;
2429  int64_t start_dts = track->start_dts;
2430 
2431  if (track->entry) {
2432  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2433 
2434  av_log(mov->fc, AV_LOG_DEBUG,
2435  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2436  track->cluster[0].dts, track->cluster[0].cts,
2437  start_dts, start_ct, track->track_id);
2438  start_dts = track->cluster[0].dts;
2439  start_ct = track->cluster[0].cts;
2440  }
2441  }
2442 
2443  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2444  track->timescale, AV_ROUND_DOWN);
2445  version |= delay < INT32_MAX ? 0 : 1;
2446 
2447  entry_size = (version == 1) ? 20 : 12;
2448  entry_count = 1 + (delay > 0);
2449  size = 24 + entry_count * entry_size;
2450 
2451  /* write the atom data */
2452  avio_wb32(pb, size);
2453  ffio_wfourcc(pb, "edts");
2454  avio_wb32(pb, size - 8);
2455  ffio_wfourcc(pb, "elst");
2456  avio_w8(pb, version);
2457  avio_wb24(pb, 0); /* flags */
2458 
2459  avio_wb32(pb, entry_count);
2460  if (delay > 0) { /* add an empty edit to delay presentation */
2461  /* In the positive delay case, the delay includes the cts
2462  * offset, and the second edit list entry below trims out
2463  * the same amount from the actual content. This makes sure
2464  * that the offsetted last sample is included in the edit
2465  * list duration as well. */
2466  if (version == 1) {
2467  avio_wb64(pb, delay);
2468  avio_wb64(pb, -1);
2469  } else {
2470  avio_wb32(pb, delay);
2471  avio_wb32(pb, -1);
2472  }
2473  avio_wb32(pb, 0x00010000);
2474  } else {
2475  /* Avoid accidentally ending up with start_ct = -1 which has got a
2476  * special meaning. Normally start_ct should end up positive or zero
2477  * here, but use FFMIN in case dts is a a small positive integer
2478  * rounded to 0 when represented in MOV_TIMESCALE units. */
2479  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2480  start_ct = -FFMIN(start_dts, 0);
2481  /* Note, this delay is calculated from the pts of the first sample,
2482  * ensuring that we don't reduce the duration for cases with
2483  * dts<0 pts=0. */
2484  duration += delay;
2485  }
2486 
2487  /* For fragmented files, we don't know the full length yet. Setting
2488  * duration to 0 allows us to only specify the offset, including
2489  * the rest of the content (from all future fragments) without specifying
2490  * an explicit duration. */
2491  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2492  duration = 0;
2493 
2494  /* duration */
2495  if (version == 1) {
2496  avio_wb64(pb, duration);
2497  avio_wb64(pb, start_ct);
2498  } else {
2499  avio_wb32(pb, duration);
2500  avio_wb32(pb, start_ct);
2501  }
2502  avio_wb32(pb, 0x00010000);
2503  return size;
2504 }
2505 
2506 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2507 {
2508  avio_wb32(pb, 20); // size
2509  ffio_wfourcc(pb, "tref");
2510  avio_wb32(pb, 12); // size (subatom)
2511  avio_wl32(pb, track->tref_tag);
2512  avio_wb32(pb, track->tref_id);
2513  return 20;
2514 }
2515 
2516 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2518 {
2519  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2520  ffio_wfourcc(pb, "uuid");
2521  ffio_wfourcc(pb, "USMT");
2522  avio_wb32(pb, 0x21d24fce);
2523  avio_wb32(pb, 0xbb88695c);
2524  avio_wb32(pb, 0xfac9c740);
2525  avio_wb32(pb, 0x1c); // another size here!
2526  ffio_wfourcc(pb, "MTDT");
2527  avio_wb32(pb, 0x00010012);
2528  avio_wb32(pb, 0x0a);
2529  avio_wb32(pb, 0x55c40000);
2530  avio_wb32(pb, 0x1);
2531  avio_wb32(pb, 0x0);
2532  return 0x34;
2533 }
2534 
2535 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2536 {
2537  AVFormatContext *ctx = track->rtp_ctx;
2538  char buf[1000] = "";
2539  int len;
2540 
2541  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2542  NULL, NULL, 0, 0, ctx);
2543  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2544  len = strlen(buf);
2545 
2546  avio_wb32(pb, len + 24);
2547  ffio_wfourcc(pb, "udta");
2548  avio_wb32(pb, len + 16);
2549  ffio_wfourcc(pb, "hnti");
2550  avio_wb32(pb, len + 8);
2551  ffio_wfourcc(pb, "sdp ");
2552  avio_write(pb, buf, len);
2553  return len + 24;
2554 }
2555 
2557  const char *tag, const char *str)
2558 {
2559  int64_t pos = avio_tell(pb);
2560  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2561  if (!t || !utf8len(t->value))
2562  return 0;
2563 
2564  avio_wb32(pb, 0); /* size */
2565  ffio_wfourcc(pb, tag); /* type */
2566  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2567  return update_size(pb, pos);
2568 }
2569 
2571  AVStream *st)
2572 {
2573  AVIOContext *pb_buf;
2574  int ret, size;
2575  uint8_t *buf;
2576 
2577  if (!st)
2578  return 0;
2579 
2580  ret = avio_open_dyn_buf(&pb_buf);
2581  if (ret < 0)
2582  return ret;
2583 
2584  if (mov->mode & MODE_MP4)
2585  mov_write_track_metadata(pb_buf, st, "name", "title");
2586 
2587  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2588  avio_wb32(pb, size + 8);
2589  ffio_wfourcc(pb, "udta");
2590  avio_write(pb, buf, size);
2591  }
2592  av_free(buf);
2593 
2594  return 0;
2595 }
2596 
2598  MOVTrack *track, AVStream *st)
2599 {
2600  int64_t pos = avio_tell(pb);
2601  int entry_backup = track->entry;
2602  int chunk_backup = track->chunkCount;
2603  int ret;
2604 
2605  /* If we want to have an empty moov, but some samples already have been
2606  * buffered (delay_moov), pretend that no samples have been written yet. */
2607  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2608  track->chunkCount = track->entry = 0;
2609 
2610  avio_wb32(pb, 0); /* size */
2611  ffio_wfourcc(pb, "trak");
2612  mov_write_tkhd_tag(pb, mov, track, st);
2613 
2614  av_assert2(mov->use_editlist >= 0);
2615 
2616  if (track->start_dts != AV_NOPTS_VALUE) {
2617  if (mov->use_editlist)
2618  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2619  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2620  av_log(mov->fc, AV_LOG_WARNING,
2621  "Not writing any edit list even though one would have been required\n");
2622  }
2623 
2624  if (track->tref_tag)
2625  mov_write_tref_tag(pb, track);
2626 
2627  if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2628  return ret;
2629  if (track->mode == MODE_PSP)
2630  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2631  if (track->tag == MKTAG('r','t','p',' '))
2632  mov_write_udta_sdp(pb, track);
2633  if (track->mode == MODE_MOV) {
2634  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2635  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2636  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2637  mov_write_tapt_tag(pb, track);
2638  }
2639  }
2640  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2641  mov_write_tapt_tag(pb, track);
2642  }
2643  }
2644  mov_write_track_udta_tag(pb, mov, st);
2645  track->entry = entry_backup;
2646  track->chunkCount = chunk_backup;
2647  return update_size(pb, pos);
2648 }
2649 
2651 {
2652  int i, has_audio = 0, has_video = 0;
2653  int64_t pos = avio_tell(pb);
2654  int audio_profile = mov->iods_audio_profile;
2655  int video_profile = mov->iods_video_profile;
2656  for (i = 0; i < mov->nb_streams; i++) {
2657  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2658  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2659  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2660  }
2661  }
2662  if (audio_profile < 0)
2663  audio_profile = 0xFF - has_audio;
2664  if (video_profile < 0)
2665  video_profile = 0xFF - has_video;
2666  avio_wb32(pb, 0x0); /* size */
2667  ffio_wfourcc(pb, "iods");
2668  avio_wb32(pb, 0); /* version & flags */
2669  put_descr(pb, 0x10, 7);
2670  avio_wb16(pb, 0x004f);
2671  avio_w8(pb, 0xff);
2672  avio_w8(pb, 0xff);
2673  avio_w8(pb, audio_profile);
2674  avio_w8(pb, video_profile);
2675  avio_w8(pb, 0xff);
2676  return update_size(pb, pos);
2677 }
2678 
2679 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2680 {
2681  avio_wb32(pb, 0x20); /* size */
2682  ffio_wfourcc(pb, "trex");
2683  avio_wb32(pb, 0); /* version & flags */
2684  avio_wb32(pb, track->track_id); /* track ID */
2685  avio_wb32(pb, 1); /* default sample description index */
2686  avio_wb32(pb, 0); /* default sample duration */
2687  avio_wb32(pb, 0); /* default sample size */
2688  avio_wb32(pb, 0); /* default sample flags */
2689  return 0;
2690 }
2691 
2693 {
2694  int64_t pos = avio_tell(pb);
2695  int i;
2696  avio_wb32(pb, 0x0); /* size */
2697  ffio_wfourcc(pb, "mvex");
2698  for (i = 0; i < mov->nb_streams; i++)
2699  mov_write_trex_tag(pb, &mov->tracks[i]);
2700  return update_size(pb, pos);
2701 }
2702 
2704 {
2705  int max_track_id = 1, i;
2706  int64_t max_track_len = 0;
2707  int version;
2708 
2709  for (i = 0; i < mov->nb_streams; i++) {
2710  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2711  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2712  MOV_TIMESCALE,
2713  mov->tracks[i].timescale,
2714  AV_ROUND_UP);
2715  if (max_track_len < max_track_len_temp)
2716  max_track_len = max_track_len_temp;
2717  if (max_track_id < mov->tracks[i].track_id)
2718  max_track_id = mov->tracks[i].track_id;
2719  }
2720  }
2721  /* If using delay_moov, make sure the output is the same as if no
2722  * samples had been written yet. */
2723  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2724  max_track_len = 0;
2725  max_track_id = 1;
2726  }
2727 
2728  version = max_track_len < UINT32_MAX ? 0 : 1;
2729  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2730 
2731  ffio_wfourcc(pb, "mvhd");
2732  avio_w8(pb, version);
2733  avio_wb24(pb, 0); /* flags */
2734  if (version == 1) {
2735  avio_wb64(pb, mov->time);
2736  avio_wb64(pb, mov->time);
2737  } else {
2738  avio_wb32(pb, mov->time); /* creation time */
2739  avio_wb32(pb, mov->time); /* modification time */
2740  }
2741  avio_wb32(pb, MOV_TIMESCALE);
2742  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2743 
2744  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2745  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2746  avio_wb16(pb, 0); /* reserved */
2747  avio_wb32(pb, 0); /* reserved */
2748  avio_wb32(pb, 0); /* reserved */
2749 
2750  /* Matrix structure */
2751  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2752 
2753  avio_wb32(pb, 0); /* reserved (preview time) */
2754  avio_wb32(pb, 0); /* reserved (preview duration) */
2755  avio_wb32(pb, 0); /* reserved (poster time) */
2756  avio_wb32(pb, 0); /* reserved (selection time) */
2757  avio_wb32(pb, 0); /* reserved (selection duration) */
2758  avio_wb32(pb, 0); /* reserved (current time) */
2759  avio_wb32(pb, max_track_id + 1); /* Next track id */
2760  return 0x6c;
2761 }
2762 
2764  AVFormatContext *s)
2765 {
2766  avio_wb32(pb, 33); /* size */
2767  ffio_wfourcc(pb, "hdlr");
2768  avio_wb32(pb, 0);
2769  avio_wb32(pb, 0);
2770  ffio_wfourcc(pb, "mdir");
2771  ffio_wfourcc(pb, "appl");
2772  avio_wb32(pb, 0);
2773  avio_wb32(pb, 0);
2774  avio_w8(pb, 0);
2775  return 33;
2776 }
2777 
2778 /* helper function to write a data tag with the specified string as data */
2779 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2780 {
2781  if (long_style) {
2782  int size = 16 + strlen(data);
2783  avio_wb32(pb, size); /* size */
2784  ffio_wfourcc(pb, "data");
2785  avio_wb32(pb, 1);
2786  avio_wb32(pb, 0);
2787  avio_write(pb, data, strlen(data));
2788  return size;
2789  } else {
2790  if (!lang)
2791  lang = ff_mov_iso639_to_lang("und", 1);
2792  avio_wb16(pb, strlen(data)); /* string length */
2793  avio_wb16(pb, lang);
2794  avio_write(pb, data, strlen(data));
2795  return strlen(data) + 4;
2796  }
2797 }
2798 
2799 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2800  const char *value, int lang, int long_style)
2801 {
2802  int size = 0;
2803  if (value && value[0]) {
2804  int64_t pos = avio_tell(pb);
2805  avio_wb32(pb, 0); /* size */
2806  ffio_wfourcc(pb, name);
2807  mov_write_string_data_tag(pb, value, lang, long_style);
2808  size = update_size(pb, pos);
2809  }
2810  return size;
2811 }
2812 
2814  const char *name, const char *tag,
2815  int long_style)
2816 {
2817  int l, lang = 0, len, len2;
2818  AVDictionaryEntry *t, *t2 = NULL;
2819  char tag2[16];
2820 
2821  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2822  return 0;
2823 
2824  len = strlen(t->key);
2825  snprintf(tag2, sizeof(tag2), "%s-", tag);
2826  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2827  len2 = strlen(t2->key);
2828  if (len2 == len + 4 && !strcmp(t->value, t2->value)
2829  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2830  lang = l;
2831  break;
2832  }
2833  }
2834  return mov_write_string_tag(pb, name, t->value, lang, long_style);
2835 }
2836 
2837 /* iTunes bpm number */
2839 {
2840  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2841  int size = 0, tmpo = t ? atoi(t->value) : 0;
2842  if (tmpo) {
2843  size = 26;
2844  avio_wb32(pb, size);
2845  ffio_wfourcc(pb, "tmpo");
2846  avio_wb32(pb, size-8); /* size */
2847  ffio_wfourcc(pb, "data");
2848  avio_wb32(pb, 0x15); //type specifier
2849  avio_wb32(pb, 0);
2850  avio_wb16(pb, tmpo); // data
2851  }
2852  return size;
2853 }
2854 
2855 /* iTunes track or disc number */
2857  AVFormatContext *s, int disc)
2858 {
2860  disc ? "disc" : "track",
2861  NULL, 0);
2862  int size = 0, track = t ? atoi(t->value) : 0;
2863  if (track) {
2864  int tracks = 0;
2865  char *slash = strchr(t->value, '/');
2866  if (slash)
2867  tracks = atoi(slash + 1);
2868  avio_wb32(pb, 32); /* size */
2869  ffio_wfourcc(pb, disc ? "disk" : "trkn");
2870  avio_wb32(pb, 24); /* size */
2871  ffio_wfourcc(pb, "data");
2872  avio_wb32(pb, 0); // 8 bytes empty
2873  avio_wb32(pb, 0);
2874  avio_wb16(pb, 0); // empty
2875  avio_wb16(pb, track); // track / disc number
2876  avio_wb16(pb, tracks); // total track / disc number
2877  avio_wb16(pb, 0); // empty
2878  size = 32;
2879  }
2880  return size;
2881 }
2882 
2884  const char *name, const char *tag,
2885  int len)
2886 {
2887  AVDictionaryEntry *t = NULL;
2888  uint8_t num;
2889  int size = 24 + len;
2890 
2891  if (len != 1 && len != 4)
2892  return -1;
2893 
2894  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2895  return 0;
2896  num = atoi(t->value);
2897 
2898  avio_wb32(pb, size);
2899  ffio_wfourcc(pb, name);
2900  avio_wb32(pb, size - 8);
2901  ffio_wfourcc(pb, "data");
2902  avio_wb32(pb, 0x15);
2903  avio_wb32(pb, 0);
2904  if (len==4) avio_wb32(pb, num);
2905  else avio_w8 (pb, num);
2906 
2907  return size;
2908 }
2909 
2910 /* iTunes meta data list */
2912  AVFormatContext *s)
2913 {
2914  int64_t pos = avio_tell(pb);
2915  avio_wb32(pb, 0); /* size */
2916  ffio_wfourcc(pb, "ilst");
2917  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2918  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2919  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2920  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2921  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2922  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2923  if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2924  if (!(s->flags & AVFMT_FLAG_BITEXACT))
2925  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2926  }
2927  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2928  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2929  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2930  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2931  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2932  mov_write_string_metadata(s, pb, "desc", "description",1);
2933  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2934  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2935  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2936  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2937  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2938  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2939  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2940  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2941  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2942  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2943  mov_write_trkn_tag(pb, mov, s, 0); // track number
2944  mov_write_trkn_tag(pb, mov, s, 1); // disc number
2945  mov_write_tmpo_tag(pb, s);
2946  return update_size(pb, pos);
2947 }
2948 
2949 /* iTunes meta data tag */
2951  AVFormatContext *s)
2952 {
2953  int size = 0;
2954  int64_t pos = avio_tell(pb);
2955  avio_wb32(pb, 0); /* size */
2956  ffio_wfourcc(pb, "meta");
2957  avio_wb32(pb, 0);
2958  mov_write_itunes_hdlr_tag(pb, mov, s);
2959  mov_write_ilst_tag(pb, mov, s);
2960  size = update_size(pb, pos);
2961  return size;
2962 }
2963 
2965  const char *name, const char *key)
2966 {
2967  int len;
2968  AVDictionaryEntry *t;
2969 
2970  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2971  return 0;
2972 
2973  len = strlen(t->value);
2974  if (len > 0) {
2975  int size = len + 8;
2976  avio_wb32(pb, size);
2977  ffio_wfourcc(pb, name);
2978  avio_write(pb, t->value, len);
2979  return size;
2980  }
2981  return 0;
2982 }
2983 
2984 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2985 {
2986  int val;
2987  while (*b) {
2988  GET_UTF8(val, *b++, return -1;)
2989  avio_wb16(pb, val);
2990  }
2991  avio_wb16(pb, 0x00);
2992  return 0;
2993 }
2994 
2995 static uint16_t language_code(const char *str)
2996 {
2997  return (((str[0] - 0x60) & 0x1F) << 10) +
2998  (((str[1] - 0x60) & 0x1F) << 5) +
2999  (( str[2] - 0x60) & 0x1F);
3000 }
3001 
3003  const char *tag, const char *str)
3004 {
3005  int64_t pos = avio_tell(pb);
3006  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3007  if (!t || !utf8len(t->value))
3008  return 0;
3009  avio_wb32(pb, 0); /* size */
3010  ffio_wfourcc(pb, tag); /* type */
3011  avio_wb32(pb, 0); /* version + flags */
3012  if (!strcmp(tag, "yrrc"))
3013  avio_wb16(pb, atoi(t->value));
3014  else {
3015  avio_wb16(pb, language_code("eng")); /* language */
3016  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3017  if (!strcmp(tag, "albm") &&
3018  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3019  avio_w8(pb, atoi(t->value));
3020  }
3021  return update_size(pb, pos);
3022 }
3023 
3025 {
3026  int64_t pos = avio_tell(pb);
3027  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3028 
3029  avio_wb32(pb, 0); // size
3030  ffio_wfourcc(pb, "chpl");
3031  avio_wb32(pb, 0x01000000); // version + flags
3032  avio_wb32(pb, 0); // unknown
3033  avio_w8(pb, nb_chapters);
3034 
3035  for (i = 0; i < nb_chapters; i++) {
3036  AVChapter *c = s->chapters[i];
3037  AVDictionaryEntry *t;
3038  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3039 
3040  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3041  int len = FFMIN(strlen(t->value), 255);
3042  avio_w8(pb, len);
3043  avio_write(pb, t->value, len);
3044  } else
3045  avio_w8(pb, 0);
3046  }
3047  return update_size(pb, pos);
3048 }
3049 
3051  AVFormatContext *s)
3052 {
3053  AVIOContext *pb_buf;
3054  int ret, size;
3055  uint8_t *buf;
3056 
3057  ret = avio_open_dyn_buf(&pb_buf);
3058  if (ret < 0)
3059  return ret;
3060 
3061  if (mov->mode & MODE_3GP) {
3062  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3063  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3064  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3065  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3066  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3067  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3068  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3069  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3070  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3071  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3072  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3073  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3074  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3075  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3076  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3077  // currently ignored by mov.c
3078  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3079  // add support for libquicktime, this atom is also actually read by mov.c
3080  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3081  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3082  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3083  mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3084  mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3085  mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3086  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3087  } else {
3088  /* iTunes meta data */
3089  mov_write_meta_tag(pb_buf, mov, s);
3090  }
3091 
3092  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3093  mov_write_chpl_tag(pb_buf, s);
3094 
3095  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3096  avio_wb32(pb, size + 8);
3097  ffio_wfourcc(pb, "udta");
3098  avio_write(pb, buf, size);
3099  }
3100  av_free(buf);
3101 
3102  return 0;
3103 }
3104 
3106  const char *str, const char *lang, int type)
3107 {
3108  int len = utf8len(str) + 1;
3109  if (len <= 0)
3110  return;
3111  avio_wb16(pb, len * 2 + 10); /* size */
3112  avio_wb32(pb, type); /* type */
3113  avio_wb16(pb, language_code(lang)); /* language */
3114  avio_wb16(pb, 0x01); /* ? */
3115  ascii_to_wc(pb, str);
3116 }
3117 
3119 {
3120  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3121  int64_t pos, pos2;
3122 
3123  if (title) {
3124  pos = avio_tell(pb);
3125  avio_wb32(pb, 0); /* size placeholder*/
3126  ffio_wfourcc(pb, "uuid");
3127  ffio_wfourcc(pb, "USMT");
3128  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3129  avio_wb32(pb, 0xbb88695c);
3130  avio_wb32(pb, 0xfac9c740);
3131 
3132  pos2 = avio_tell(pb);
3133  avio_wb32(pb, 0); /* size placeholder*/
3134  ffio_wfourcc(pb, "MTDT");
3135  avio_wb16(pb, 4);
3136 
3137  // ?
3138  avio_wb16(pb, 0x0C); /* size */
3139  avio_wb32(pb, 0x0B); /* type */
3140  avio_wb16(pb, language_code("und")); /* language */
3141  avio_wb16(pb, 0x0); /* ? */
3142  avio_wb16(pb, 0x021C); /* data */
3143 
3144  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3145  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3146  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3147  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3148 
3149  update_size(pb, pos2);
3150  return update_size(pb, pos);
3151  }
3152 
3153  return 0;
3154 }
3155 
3156 static void build_chunks(MOVTrack *trk)
3157 {
3158  int i;
3159  MOVIentry *chunk = &trk->cluster[0];
3160  uint64_t chunkSize = chunk->size;
3161  chunk->chunkNum = 1;
3162  if (trk->chunkCount)
3163  return;
3164  trk->chunkCount = 1;
3165  for (i = 1; i<trk->entry; i++){
3166  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3167  chunkSize + trk->cluster[i].size < (1<<20)){
3168  chunkSize += trk->cluster[i].size;
3169  chunk->samples_in_chunk += trk->cluster[i].entries;
3170  } else {
3171  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3172  chunk=&trk->cluster[i];
3173  chunkSize = chunk->size;
3174  trk->chunkCount++;
3175  }
3176  }
3177 }
3178 
3180  AVFormatContext *s)
3181 {
3182  int i;
3183  int64_t pos = avio_tell(pb);
3184  avio_wb32(pb, 0); /* size placeholder*/
3185  ffio_wfourcc(pb, "moov");
3186 
3187  for (i = 0; i < mov->nb_streams; i++) {
3188  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3189  continue;
3190 
3191  mov->tracks[i].time = mov->time;
3192  mov->tracks[i].track_id = i + 1;
3193 
3194  if (mov->tracks[i].entry)
3195  build_chunks(&mov->tracks[i]);
3196  }
3197 
3198  if (mov->chapter_track)
3199  for (i = 0; i < s->nb_streams; i++) {
3200  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3201  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3202  }
3203  for (i = 0; i < mov->nb_streams; i++) {
3204  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3205  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3206  mov->tracks[i].tref_id =
3207  mov->tracks[mov->tracks[i].src_track].track_id;
3208  }
3209  }
3210  for (i = 0; i < mov->nb_streams; i++) {
3211  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3212  int src_trk = mov->tracks[i].src_track;
3213  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3214  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3215  //src_trk may have a different timescale than the tmcd track
3216  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3217  mov->tracks[i].timescale,
3218  mov->tracks[src_trk].timescale);
3219  }
3220  }
3221 
3222  mov_write_mvhd_tag(pb, mov);
3223  if (mov->mode != MODE_MOV && !mov->iods_skip)
3224  mov_write_iods_tag(pb, mov);
3225  for (i = 0; i < mov->nb_streams; i++) {
3226  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3227  int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3228  if (ret < 0)
3229  return ret;
3230  }
3231  }
3232  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3233  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3234 
3235  if (mov->mode == MODE_PSP)
3236  mov_write_uuidusmt_tag(pb, s);
3237  else
3238  mov_write_udta_tag(pb, mov, s);
3239 
3240  return update_size(pb, pos);
3241 }
3242 
3243 static void param_write_int(AVIOContext *pb, const char *name, int value)
3244 {
3245  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3246 }
3247 
3248 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3249 {
3250  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3251 }
3252 
3253 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3254 {
3255  char buf[150];
3256  len = FFMIN(sizeof(buf) / 2 - 1, len);
3257  ff_data_to_hex(buf, value, len, 0);
3258  buf[2 * len] = '\0';
3259  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3260 }
3261 
3263 {
3264  int64_t pos = avio_tell(pb);
3265  int i;
3266  static const uint8_t uuid[] = {
3267  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3268  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3269  };
3270 
3271  avio_wb32(pb, 0);
3272  ffio_wfourcc(pb, "uuid");
3273  avio_write(pb, uuid, sizeof(uuid));
3274  avio_wb32(pb, 0);
3275 
3276  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3277  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3278  avio_printf(pb, "<head>\n");
3279  if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3280  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3282  avio_printf(pb, "</head>\n");
3283  avio_printf(pb, "<body>\n");
3284  avio_printf(pb, "<switch>\n");
3285  for (i = 0; i < mov->nb_streams; i++) {
3286  MOVTrack *track = &mov->tracks[i];
3287  const char *type;
3288  /* track->track_id is initialized in write_moov, and thus isn't known
3289  * here yet */
3290  int track_id = i + 1;
3291 
3292  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3293  type = "video";
3294  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3295  type = "audio";
3296  } else {
3297  continue;
3298  }
3299  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3300  track->enc->bit_rate);
3301  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3302  param_write_int(pb, "trackID", track_id);
3303  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3304  if (track->enc->codec_id == AV_CODEC_ID_H264) {
3305  uint8_t *ptr;
3306  int size = track->enc->extradata_size;
3307  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3308  &size)) {
3309  param_write_hex(pb, "CodecPrivateData",
3310  ptr ? ptr : track->enc->extradata,
3311  size);
3312  av_free(ptr);
3313  }
3314  param_write_string(pb, "FourCC", "H264");
3315  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3316  param_write_string(pb, "FourCC", "WVC1");
3317  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3318  track->enc->extradata_size);
3319  }
3320  param_write_int(pb, "MaxWidth", track->enc->width);
3321  param_write_int(pb, "MaxHeight", track->enc->height);
3322  param_write_int(pb, "DisplayWidth", track->enc->width);
3323  param_write_int(pb, "DisplayHeight", track->enc->height);
3324  } else {
3325  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3326  param_write_string(pb, "FourCC", "AACL");
3327  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3328  param_write_string(pb, "FourCC", "WMAP");
3329  }
3330  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3331  track->enc->extradata_size);
3333  track->enc->codec_id));
3334  param_write_int(pb, "Channels", track->enc->channels);
3335  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3336  param_write_int(pb, "BitsPerSample", 16);
3337  param_write_int(pb, "PacketSize", track->enc->block_align ?
3338  track->enc->block_align : 4);
3339  }
3340  avio_printf(pb, "</%s>\n", type);
3341  }
3342  avio_printf(pb, "</switch>\n");
3343  avio_printf(pb, "</body>\n");
3344  avio_printf(pb, "</smil>\n");
3345 
3346  return update_size(pb, pos);
3347 }
3348 
3350 {
3351  avio_wb32(pb, 16);
3352  ffio_wfourcc(pb, "mfhd");
3353  avio_wb32(pb, 0);
3354  avio_wb32(pb, mov->fragments);
3355  return 0;
3356 }
3357 
3358 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3359 {
3362 }
3363 
3365  MOVTrack *track, int64_t moof_offset)
3366 {
3367  int64_t pos = avio_tell(pb);
3370  if (!track->entry) {
3371  flags |= MOV_TFHD_DURATION_IS_EMPTY;
3372  } else {
3373  flags |= MOV_TFHD_DEFAULT_FLAGS;
3374  }
3376  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3377  if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3378  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3380  }
3381 
3382  /* Don't set a default sample size, the silverlight player refuses
3383  * to play files with that set. Don't set a default sample duration,
3384  * WMP freaks out if it is set. Don't set a base data offset, PIFF
3385  * file format says it MUST NOT be set. */
3386  if (track->mode == MODE_ISM)
3389 
3390  avio_wb32(pb, 0); /* size placeholder */
3391  ffio_wfourcc(pb, "tfhd");
3392  avio_w8(pb, 0); /* version */
3393  avio_wb24(pb, flags);
3394 
3395  avio_wb32(pb, track->track_id); /* track-id */
3396  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3397  avio_wb64(pb, moof_offset);
3398  if (flags & MOV_TFHD_DEFAULT_DURATION) {
3399  track->default_duration = get_cluster_duration(track, 0);
3400  avio_wb32(pb, track->default_duration);
3401  }
3402  if (flags & MOV_TFHD_DEFAULT_SIZE) {
3403  track->default_size = track->entry ? track->cluster[0].size : 1;
3404  avio_wb32(pb, track->default_size);
3405  } else
3406  track->default_size = -1;
3407 
3408  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3409  /* Set the default flags based on the second sample, if available.
3410  * If the first sample is different, that can be signaled via a separate field. */
3411  if (track->entry > 1)
3412  track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3413  else
3414  track->default_sample_flags =
3415  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3418  avio_wb32(pb, track->default_sample_flags);
3419  }
3420 
3421  return update_size(pb, pos);
3422 }
3423 
3425  MOVTrack *track, int moof_size,
3426  int first, int end)
3427 {
3428  int64_t pos = avio_tell(pb);
3429  uint32_t flags = MOV_TRUN_DATA_OFFSET;
3430  int i;
3431 
3432  for (i = first; i < end; i++) {
3433  if (get_cluster_duration(track, i) != track->default_duration)
3434  flags |= MOV_TRUN_SAMPLE_DURATION;
3435  if (track->cluster[i].size != track->default_size)
3436  flags |= MOV_TRUN_SAMPLE_SIZE;
3437  if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3438  flags |= MOV_TRUN_SAMPLE_FLAGS;
3439  }
3440  if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3441  get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3442  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3443  if (track->flags & MOV_TRACK_CTTS)
3444  flags |= MOV_TRUN_SAMPLE_CTS;
3445 
3446  avio_wb32(pb, 0); /* size placeholder */
3447  ffio_wfourcc(pb, "trun");
3448  avio_w8(pb, 0); /* version */
3449  avio_wb24(pb, flags);
3450 
3451  avio_wb32(pb, end - first); /* sample count */
3452  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3454  !mov->first_trun)
3455  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3456  else
3457  avio_wb32(pb, moof_size + 8 + track->data_offset +
3458  track->cluster[first].pos); /* data offset */
3459  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3460  avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3461 
3462  for (i = first; i < end; i++) {
3463  if (flags & MOV_TRUN_SAMPLE_DURATION)
3464  avio_wb32(pb, get_cluster_duration(track, i));
3465  if (flags & MOV_TRUN_SAMPLE_SIZE)
3466  avio_wb32(pb, track->cluster[i].size);
3467  if (flags & MOV_TRUN_SAMPLE_FLAGS)
3468  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3469  if (flags & MOV_TRUN_SAMPLE_CTS)
3470  avio_wb32(pb, track->cluster[i].cts);
3471  }
3472 
3473  mov->first_trun = 0;
3474  return update_size(pb, pos);
3475 }
3476 
3477 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3478 {
3479  int64_t pos = avio_tell(pb);
3480  static const uint8_t uuid[] = {
3481  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3482  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3483  };
3484 
3485  avio_wb32(pb, 0); /* size placeholder */
3486  ffio_wfourcc(pb, "uuid");
3487  avio_write(pb, uuid, sizeof(uuid));
3488  avio_w8(pb, 1);
3489  avio_wb24(pb, 0);
3490  avio_wb64(pb, track->start_dts + track->frag_start +
3491  track->cluster[0].cts);
3492  avio_wb64(pb, track->end_pts -
3493  (track->cluster[0].dts + track->cluster[0].cts));
3494 
3495  return update_size(pb, pos);
3496 }
3497 
3499  MOVTrack *track, int entry)
3500 {
3501  int n = track->nb_frag_info - 1 - entry, i;
3502  int size = 8 + 16 + 4 + 1 + 16*n;
3503  static const uint8_t uuid[] = {
3504  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3505  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3506  };
3507 
3508  if (entry < 0)
3509  return 0;
3510 
3511  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3512  avio_wb32(pb, size);
3513  ffio_wfourcc(pb, "uuid");
3514  avio_write(pb, uuid, sizeof(uuid));
3515  avio_w8(pb, 1);
3516  avio_wb24(pb, 0);
3517  avio_w8(pb, n);
3518  for (i = 0; i < n; i++) {
3519  int index = entry + 1 + i;
3520  avio_wb64(pb, track->frag_info[index].time);
3521  avio_wb64(pb, track->frag_info[index].duration);
3522  }
3523  if (n < mov->ism_lookahead) {
3524  int free_size = 16 * (mov->ism_lookahead - n);
3525  avio_wb32(pb, free_size);
3526  ffio_wfourcc(pb, "free");
3527  ffio_fill(pb, 0, free_size - 8);
3528  }
3529 
3530  return 0;
3531 }
3532 
3534  MOVTrack *track)
3535 {
3536  int64_t pos = avio_tell(pb);
3537  int i;
3538  for (i = 0; i < mov->ism_lookahead; i++) {
3539  /* Update the tfrf tag for the last ism_lookahead fragments,
3540  * nb_frag_info - 1 is the next fragment to be written. */
3541  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3542  }
3543  avio_seek(pb, pos, SEEK_SET);
3544  return 0;
3545 }
3546 
3547 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3548  int size)
3549 {
3550  int i;
3551  for (i = 0; i < mov->nb_streams; i++) {
3552  MOVTrack *track = &mov->tracks[i];
3553  MOVFragmentInfo *info;
3554  if ((tracks >= 0 && i != tracks) || !track->entry)
3555  continue;
3556  track->nb_frag_info++;
3557  if (track->nb_frag_info >= track->frag_info_capacity) {
3558  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3559  if (av_reallocp_array(&track->frag_info,
3560  new_capacity,
3561  sizeof(*track->frag_info)))
3562  return AVERROR(ENOMEM);
3563  track->frag_info_capacity = new_capacity;
3564  }
3565  info = &track->frag_info[track->nb_frag_info - 1];
3566  info->offset = avio_tell(pb);
3567  info->size = size;
3568  // Try to recreate the original pts for the first packet
3569  // from the fields we have stored
3570  info->time = track->start_dts + track->frag_start +
3571  track->cluster[0].cts;
3572  info->duration = track->end_pts -
3573  (track->cluster[0].dts + track->cluster[0].cts);
3574  // If the pts is less than zero, we will have trimmed
3575  // away parts of the media track using an edit list,
3576  // and the corresponding start presentation time is zero.
3577  if (info->time < 0) {
3578  info->duration += info->time;
3579  info->time = 0;
3580  }
3581  info->tfrf_offset = 0;
3582  mov_write_tfrf_tags(pb, mov, track);
3583  }
3584  return 0;
3585 }
3586 
3587 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3588 {
3589  int64_t pos = avio_tell(pb);
3590 
3591  avio_wb32(pb, 0); /* size */
3592  ffio_wfourcc(pb, "tfdt");
3593  avio_w8(pb, 1); /* version */
3594  avio_wb24(pb, 0);
3595  avio_wb64(pb, track->frag_start);
3596  return update_size(pb, pos);
3597 }
3598 
3600  MOVTrack *track, int64_t moof_offset,
3601  int moof_size)
3602 {
3603  int64_t pos = avio_tell(pb);
3604  int i, start = 0;
3605  avio_wb32(pb, 0); /* size placeholder */
3606  ffio_wfourcc(pb, "traf");
3607 
3608  mov_write_tfhd_tag(pb, mov, track, moof_offset);
3609  if (mov->mode != MODE_ISM)
3610  mov_write_tfdt_tag(pb, track);
3611  for (i = 1; i < track->entry; i++) {
3612  if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3613  mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3614  start = i;
3615  }
3616  }
3617  mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3618  if (mov->mode == MODE_ISM) {
3619  mov_write_tfxd_tag(pb, track);
3620 
3621  if (mov->ism_lookahead) {
3622  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3623 
3624  if (track->nb_frag_info > 0) {
3625  MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3626  if (!info->tfrf_offset)
3627  info->tfrf_offset = avio_tell(pb);
3628  }
3629  avio_wb32(pb, 8 + size);
3630  ffio_wfourcc(pb, "free");
3631  for (i = 0; i < size; i++)
3632  avio_w8(pb, 0);
3633  }
3634  }
3635 
3636  return update_size(pb, pos);
3637 }
3638 
3640  int tracks, int moof_size)
3641 {
3642  int64_t pos = avio_tell(pb);
3643  int i;
3644 
3645  avio_wb32(pb, 0); /* size placeholder */
3646  ffio_wfourcc(pb, "moof");
3647  mov->first_trun = 1;
3648 
3649  mov_write_mfhd_tag(pb, mov);
3650  for (i = 0; i < mov->nb_streams; i++) {
3651  MOVTrack *track = &mov->tracks[i];
3652  if (tracks >= 0 && i != tracks)
3653  continue;
3654  if (!track->entry)
3655  continue;
3656  mov_write_traf_tag(pb, mov, track, pos, moof_size);
3657  }
3658 
3659  return update_size(pb, pos);
3660 }
3661 
3663  MOVTrack *track, int ref_size, int total_sidx_size)
3664 {
3665  int64_t pos = avio_tell(pb), offset_pos, end_pos;
3666  int64_t presentation_time, duration, offset;
3667  int starts_with_SAP, i, entries;
3668 
3669  if (track->entry) {
3670  entries = 1;
3671  presentation_time = track->start_dts + track->frag_start +
3672  track->cluster[0].cts;
3673  duration = track->end_pts -
3674  (track->cluster[0].dts + track->cluster[0].cts);
3675  starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3676 
3677  // pts<0 should be cut away using edts
3678  if (presentation_time < 0) {
3679  duration += presentation_time;
3680  presentation_time = 0;
3681  }
3682  } else {
3683  entries = track->nb_frag_info;
3684  if (entries <= 0)
3685  return 0;
3686  presentation_time = track->frag_info[0].time;
3687  }
3688 
3689  avio_wb32(pb, 0); /* size */
3690  ffio_wfourcc(pb, "sidx");
3691  avio_w8(pb, 1); /* version */
3692  avio_wb24(pb, 0);
3693  avio_wb32(pb, track->track_id); /* reference_ID */
3694  avio_wb32(pb, track->timescale); /* timescale */
3695  avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3696  offset_pos = avio_tell(pb);
3697  avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3698  avio_wb16(pb, 0); /* reserved */
3699 
3700  avio_wb16(pb, entries); /* reference_count */
3701  for (i = 0; i < entries; i++) {
3702  if (!track->entry) {
3703  if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3704  av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3705  }
3706  duration = track->frag_info[i].duration;
3707  ref_size = track->frag_info[i].size;
3708  starts_with_SAP = 1;
3709  }
3710  avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3711  avio_wb32(pb, duration); /* subsegment_duration */
3712  avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3713  }
3714 
3715  end_pos = avio_tell(pb);
3716  offset = pos + total_sidx_size - end_pos;
3717  avio_seek(pb, offset_pos, SEEK_SET);
3718  avio_wb64(pb, offset);
3719  avio_seek(pb, end_pos, SEEK_SET);
3720  return update_size(pb, pos);
3721 }
3722 
3724  int tracks, int ref_size)
3725 {
3726  int i, round, ret;
3727  AVIOContext *avio_buf;
3728  int total_size = 0;
3729  for (round = 0; round < 2; round++) {
3730  // First run one round to calculate the total size of all
3731  // sidx atoms.
3732  // This would be much simpler if we'd only write one sidx
3733  // atom, for the first track in the moof.
3734  if (round == 0) {
3735  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3736  return ret;
3737  } else {
3738  avio_buf = pb;
3739  }
3740  for (i = 0; i < mov->nb_streams; i++) {
3741  MOVTrack *track = &mov->tracks[i];
3742  if (tracks >= 0 && i != tracks)
3743  continue;
3744  // When writing a sidx for the full file, entry is 0, but
3745  // we want to include all tracks. ref_size is 0 in this case,
3746  // since we read it from frag_info instead.
3747  if (!track->entry && ref_size > 0)
3748  continue;
3749  total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3750  total_size);
3751  }
3752  if (round == 0)
3753  total_size = ffio_close_null_buf(avio_buf);
3754  }
3755  return 0;
3756 }
3757 
3758 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3759  int64_t mdat_size)
3760 {
3761  AVIOContext *avio_buf;
3762  int ret, moof_size;
3763 
3764  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3765  return ret;
3766  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3767  moof_size = ffio_close_null_buf(avio_buf);
3768 
3769  if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3770  mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3771 
3772  if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3773  return ret;
3774 
3775  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3776 }
3777 
3778 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3779 {
3780  int64_t pos = avio_tell(pb);
3781  int i;
3782 
3783  avio_wb32(pb, 0); /* size placeholder */
3784  ffio_wfourcc(pb, "tfra");
3785  avio_w8(pb, 1); /* version */
3786  avio_wb24(pb, 0);
3787 
3788  avio_wb32(pb, track->track_id);
3789  avio_wb32(pb, 0); /* length of traf/trun/sample num */
3790  avio_wb32(pb, track->nb_frag_info);
3791  for (i = 0; i < track->nb_frag_info; i++) {
3792  avio_wb64(pb, track->frag_info[i].time);
3793  avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3794  avio_w8(pb, 1); /* traf number */
3795  avio_w8(pb, 1); /* trun number */
3796  avio_w8(pb, 1); /* sample number */
3797  }
3798 
3799  return update_size(pb, pos);
3800 }
3801 
3803 {
3804  int64_t pos = avio_tell(pb);
3805  int i;
3806 
3807  avio_wb32(pb, 0); /* size placeholder */
3808  ffio_wfourcc(pb, "mfra");
3809  /* An empty mfra atom is enough to indicate to the publishing point that
3810  * the stream has ended. */
3811  if (mov->flags & FF_MOV_FLAG_ISML)
3812  return update_size(pb, pos);
3813 
3814  for (i = 0; i < mov->nb_streams; i++) {
3815  MOVTrack *track = &mov->tracks[i];
3816  if (track->nb_frag_info)
3817  mov_write_tfra_tag(pb, track);
3818  }
3819 
3820  avio_wb32(pb, 16);
3821  ffio_wfourcc(pb, "mfro");
3822  avio_wb32(pb, 0); /* version + flags */
3823  avio_wb32(pb, avio_tell(pb) + 4 - pos);
3824 
3825  return update_size(pb, pos);
3826 }
3827 
3829 {
3830  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3831  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3832 
3833  mov->mdat_pos = avio_tell(pb);
3834  avio_wb32(pb, 0); /* size placeholder*/
3835  ffio_wfourcc(pb, "mdat");
3836  return 0;
3837 }
3838 
3839 /* TODO: This needs to be more general */
3841 {
3842  MOVMuxContext *mov = s->priv_data;
3843  int64_t pos = avio_tell(pb);
3844  int has_h264 = 0, has_video = 0;
3845  int minor = 0x200;
3846  int i;
3847 
3848  for (i = 0; i < s->nb_streams; i++) {
3849  AVStream *st = s->streams[i];
3850  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3851  has_video = 1;
3852  if (st->codec->codec_id == AV_CODEC_ID_H264)
3853  has_h264 = 1;
3854  }
3855 
3856  avio_wb32(pb, 0); /* size */
3857  ffio_wfourcc(pb, "ftyp");
3858 
3859  if (mov->major_brand && strlen(mov->major_brand) >= 4)
3860  ffio_wfourcc(pb, mov->major_brand);
3861  else if (mov->mode == MODE_3GP) {
3862  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3863  minor = has_h264 ? 0x100 : 0x200;
3864  } else if (mov->mode & MODE_3G2) {
3865  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3866  minor = has_h264 ? 0x20000 : 0x10000;
3867  } else if (mov->mode == MODE_PSP)
3868  ffio_wfourcc(pb, "MSNV");
3869  else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3870  ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3871  else if (mov->mode == MODE_MP4)
3872  ffio_wfourcc(pb, "isom");
3873  else if (mov->mode == MODE_IPOD)
3874  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3875  else if (mov->mode == MODE_ISM)
3876  ffio_wfourcc(pb, "isml");
3877  else if (mov->mode == MODE_F4V)
3878  ffio_wfourcc(pb, "f4v ");
3879  else
3880  ffio_wfourcc(pb, "qt ");
3881 
3882  avio_wb32(pb, minor);
3883 
3884  if (mov->mode == MODE_MOV)
3885  ffio_wfourcc(pb, "qt ");
3886  else if (mov->mode == MODE_ISM) {
3887  ffio_wfourcc(pb, "piff");
3888  } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3889  ffio_wfourcc(pb, "isom");
3890  ffio_wfourcc(pb, "iso2");
3891  if (has_h264)
3892  ffio_wfourcc(pb, "avc1");
3893  }
3894 
3895  // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3896  // brand. This is compatible with users that don't understand tfdt.
3897  if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3898  ffio_wfourcc(pb, "iso6");
3899 
3900  if (mov->mode == MODE_3GP)
3901  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3902  else if (mov->mode & MODE_3G2)
3903  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3904  else if (mov->mode == MODE_PSP)
3905  ffio_wfourcc(pb, "MSNV");
3906  else if (mov->mode == MODE_MP4)
3907  ffio_wfourcc(pb, "mp41");
3908 
3909  if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3910  ffio_wfourcc(pb, "dash");
3911 
3912  return update_size(pb, pos);
3913 }
3914 
3916 {
3917  AVStream *video_st = s->streams[0];
3918  AVCodecContext *video_codec = s->streams[0]->codec;
3919  AVCodecContext *audio_codec = s->streams[1]->codec;
3920  int audio_rate = audio_codec->sample_rate;
3921  // TODO: should be avg_frame_rate
3922  int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3923  int audio_kbitrate = audio_codec->bit_rate / 1000;
3924  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3925 
3926  avio_wb32(pb, 0x94); /* size */
3927  ffio_wfourcc(pb, "uuid");
3928  ffio_wfourcc(pb, "PROF");
3929 
3930  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3931  avio_wb32(pb, 0xbb88695c);
3932  avio_wb32(pb, 0xfac9c740);
3933 
3934  avio_wb32(pb, 0x0); /* ? */
3935  avio_wb32(pb, 0x3); /* 3 sections ? */
3936 
3937  avio_wb32(pb, 0x14); /* size */
3938  ffio_wfourcc(pb, "FPRF");
3939  avio_wb32(pb, 0x0); /* ? */
3940  avio_wb32(pb, 0x0); /* ? */
3941  avio_wb32(pb, 0x0); /* ? */
3942 
3943  avio_wb32(pb, 0x2c); /* size */
3944  ffio_wfourcc(pb, "APRF"); /* audio */
3945  avio_wb32(pb, 0x0);
3946  avio_wb32(pb, 0x2); /* TrackID */
3947  ffio_wfourcc(pb, "mp4a");
3948  avio_wb32(pb, 0x20f);
3949  avio_wb32(pb, 0x0);
3950  avio_wb32(pb, audio_kbitrate);
3951  avio_wb32(pb, audio_kbitrate);
3952  avio_wb32(pb, audio_rate);
3953  avio_wb32(pb, audio_codec->channels);
3954 
3955  avio_wb32(pb, 0x34); /* size */
3956  ffio_wfourcc(pb, "VPRF"); /* video */
3957  avio_wb32(pb, 0x0);
3958  avio_wb32(pb, 0x1); /* TrackID */
3959  if (video_codec->codec_id == AV_CODEC_ID_H264) {
3960  ffio_wfourcc(pb, "avc1");
3961  avio_wb16(pb, 0x014D);
3962  avio_wb16(pb, 0x0015);
3963  } else {
3964  ffio_wfourcc(pb, "mp4v");
3965  avio_wb16(pb, 0x0000);
3966  avio_wb16(pb, 0x0103);
3967  }
3968  avio_wb32(pb, 0x0);
3969  avio_wb32(pb, video_kbitrate);
3970  avio_wb32(pb, video_kbitrate);
3971  avio_wb32(pb, frame_rate);
3972  avio_wb32(pb, frame_rate);
3973  avio_wb16(pb, video_codec->width);
3974  avio_wb16(pb, video_codec->height);
3975  avio_wb32(pb, 0x010001); /* ? */
3976 }
3977 
3979 {
3980  MOVMuxContext *mov = s->priv_data;
3981  int i;
3982 
3983  mov_write_ftyp_tag(pb,s);
3984  if (mov->mode == MODE_PSP) {
3985  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3986  for (i = 0; i < s->nb_streams; i++) {
3987  AVStream *st = s->streams[i];
3988  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3989  video_streams_nb++;
3990  else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3991  audio_streams_nb++;
3992  else
3993  other_streams_nb++;
3994  }
3995 
3996  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3997  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3998  return AVERROR(EINVAL);
3999  }
4000  mov_write_uuidprof_tag(pb, s);
4001  }
4002  return 0;
4003 }
4004 
4005 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4006 {
4007  uint32_t c = -1;
4008  int i, closed_gop = 0;
4009 
4010  for (i = 0; i < pkt->size - 4; i++) {
4011  c = (c << 8) + pkt->data[i];
4012  if (c == 0x1b8) { // gop
4013  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4014  } else if (c == 0x100) { // pic
4015  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4016  if (!temp_ref || closed_gop) // I picture is not reordered
4017  *flags = MOV_SYNC_SAMPLE;
4018  else
4019  *flags = MOV_PARTIAL_SYNC_SAMPLE;
4020  break;
4021  }
4022  }
4023  return 0;
4024 }
4025 
4026 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4027 {
4028  const uint8_t *start, *next, *end = pkt->data + pkt->size;
4029  int seq = 0, entry = 0;
4030  int key = pkt->flags & AV_PKT_FLAG_KEY;
4031  start = find_next_marker(pkt->data, end);
4032  for (next = start; next < end; start = next) {
4033  next = find_next_marker(start + 4, end);
4034  switch (AV_RB32(start)) {
4035  case VC1_CODE_SEQHDR:
4036  seq = 1;
4037  break;
4038  case VC1_CODE_ENTRYPOINT:
4039  entry = 1;
4040  break;
4041  case VC1_CODE_SLICE:
4042  trk->vc1_info.slices = 1;
4043  break;
4044  }
4045  }
4046  if (!trk->entry && trk->vc1_info.first_packet_seen)
4047  trk->vc1_info.first_frag_written = 1;
4048  if (!trk->entry && !trk->vc1_info.first_frag_written) {
4049  /* First packet in first fragment */
4050  trk->vc1_info.first_packet_seq = seq;
4051  trk->vc1_info.first_packet_entry = entry;
4052  trk->vc1_info.first_packet_seen = 1;
4053  } else if ((seq && !trk->vc1_info.packet_seq) ||
4054  (entry && !trk->vc1_info.packet_entry)) {
4055  int i;
4056  for (i = 0; i < trk->entry; i++)
4057  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4058  trk->has_keyframes = 0;
4059  if (seq)
4060  trk->vc1_info.packet_seq = 1;
4061  if (entry)
4062  trk->vc1_info.packet_entry = 1;
4063  if (!trk->vc1_info.first_frag_written) {
4064  /* First fragment */
4065  if ((!seq || trk->vc1_info.first_packet_seq) &&
4066  (!entry || trk->vc1_info.first_packet_entry)) {
4067  /* First packet had the same headers as this one, readd the
4068  * sync sample flag. */
4069  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4070  trk->has_keyframes = 1;
4071  }
4072  }
4073  }
4074  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4075  key = seq && entry;
4076  else if (trk->vc1_info.packet_seq)
4077  key = seq;
4078  else if (trk->vc1_info.packet_entry)
4079  key = entry;
4080  if (key) {
4081  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4082  trk->has_keyframes++;
4083  }
4084 }
4085 
4087 {
4088  MOVMuxContext *mov = s->priv_data;
4089  int ret, buf_size;
4090  uint8_t *buf;
4091  int i, offset;
4092 
4093  if (!track->mdat_buf)
4094  return 0;
4095  if (!mov->mdat_buf) {
4096  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4097  return ret;
4098  }
4099  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4100  track->mdat_buf = NULL;
4101 
4102  offset = avio_tell(mov->mdat_buf);
4103  avio_write(mov->mdat_buf, buf, buf_size);
4104  av_free(buf);
4105 
4106  for (i = track->entries_flushed; i < track->entry; i++)
4107  track->cluster[i].pos += offset;
4108  track->entries_flushed = track->entry;
4109  return 0;
4110 }
4111 
4113 {
4114  MOVMuxContext *mov = s->priv_data;
4115  int i, first_track = -1;
4116  int64_t mdat_size = 0;
4117  int ret;
4118 
4119  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4120  return 0;
4121 
4122  for (i = 0; i < mov->nb_streams; i++) {
4123  MOVTrack *track = &mov->tracks[i];
4124  if (track->entry <= 1)
4125  continue;
4126  // Sample durations are calculated as the diff of dts values,
4127  // but for the last sample in a fragment, we don't know the dts
4128  // of the first sample in the next fragment, so we have to rely
4129  // on what was set as duration in the AVPacket. Not all callers
4130  // set this though, so we might want to replace it with an
4131  // estimate if it currently is zero.
4132  if (get_cluster_duration(track, track->entry - 1) != 0)
4133  continue;
4134  // Use the duration (i.e. dts diff) of the second last sample for
4135  // the last one. This is a wild guess (and fatal if it turns out
4136  // to be too long), but probably the best we can do - having a zero
4137  // duration is bad as well.
4138  track->track_duration += get_cluster_duration(track, track->entry - 2);
4139  track->end_pts += get_cluster_duration(track, track->entry - 2);
4140  if (!mov->missing_duration_warned) {
4142  "Estimating the duration of the last packet in a "
4143  "fragment, consider setting the duration field in "
4144  "AVPacket instead.\n");
4145  mov->missing_duration_warned = 1;
4146  }
4147  }
4148 
4149  if (!mov->moov_written) {
4150  int64_t pos = avio_tell(s->pb);
4151  uint8_t *buf;
4152  int buf_size, moov_size;
4153 
4154  for (i = 0; i < mov->nb_streams; i++)
4155  if (!mov->tracks[i].entry)
4156  break;
4157  /* Don't write the initial moov unless all tracks have data */
4158  if (i < mov->nb_streams)
4159  return 0;
4160 
4161  moov_size = get_moov_size(s);
4162  for (i = 0; i < mov->nb_streams; i++)
4163  mov->tracks[i].data_offset = pos + moov_size + 8;
4164 
4167  if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4168  return ret;
4169 
4170  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4171  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4172  mov->reserved_header_pos = avio_tell(s->pb);
4173  avio_flush(s->pb);
4174  mov->moov_written = 1;
4175  return 0;
4176  }
4177 
4178  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4179  mov->mdat_buf = NULL;
4180  avio_wb32(s->pb, buf_size + 8);
4181  ffio_wfourcc(s->pb, "mdat");
4182  avio_write(s->pb, buf, buf_size);
4183  av_free(buf);
4184 
4185  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4186  mov->reserved_header_pos = avio_tell(s->pb);
4187 
4188  mov->moov_written = 1;
4189  mov->mdat_size = 0;
4190  for (i = 0; i < mov->nb_streams; i++) {
4191  if (mov->tracks[i].entry)
4192  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4193  mov->tracks[i].track_duration -
4194  mov->tracks[i].cluster[0].dts;
4195  mov->tracks[i].entry = 0;
4196  }
4197  avio_flush(s->pb);
4198  return 0;
4199  }
4200 
4201  if (mov->frag_interleave) {
4202  for (i = 0; i < mov->nb_streams; i++) {
4203  MOVTrack *track = &mov->tracks[i];
4204  int ret;
4205  if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4206  return ret;
4207  }
4208 
4209  if (!mov->mdat_buf)
4210  return 0;
4211  mdat_size = avio_tell(mov->mdat_buf);
4212  }
4213 
4214  for (i = 0; i < mov->nb_streams; i++) {
4215  MOVTrack *track = &mov->tracks[i];
4216  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4217  track->data_offset = 0;
4218  else
4219  track->data_offset = mdat_size;
4220  if (!track->entry)
4221  continue;
4222  if (track->mdat_buf)
4223  mdat_size += avio_tell(track->mdat_buf);
4224  if (first_track < 0)
4225  first_track = i;
4226  }
4227 
4228  if (!mdat_size)
4229  return 0;
4230 
4231  for (i = 0; i < mov->nb_streams; i++) {
4232  MOVTrack *track = &mov->tracks[i];
4233  int buf_size, write_moof = 1, moof_tracks = -1;
4234  uint8_t *buf;
4235  int64_t duration = 0;
4236 
4237  if (track->entry)
4238  duration = track->start_dts + track->track_duration -
4239  track->cluster[0].dts;
4240  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4241  if (!track->mdat_buf)
4242  continue;
4243  mdat_size = avio_tell(track->mdat_buf);
4244  moof_tracks = i;
4245  } else {
4246  write_moof = i == first_track;
4247  }
4248 
4249  if (write_moof) {
4250  avio_flush(s->pb);
4251 
4252  mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4253  mov->fragments++;
4254 
4255  avio_wb32(s->pb, mdat_size + 8);
4256  ffio_wfourcc(s->pb, "mdat");
4257  }
4258 
4259  if (track->entry)
4260  track->frag_start += duration;
4261  track->entry = 0;
4262  track->entries_flushed = 0;
4263  if (!mov->frag_interleave) {
4264  if (!track->mdat_buf)
4265  continue;
4266  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4267  track->mdat_buf = NULL;
4268  } else {
4269  if (!mov->mdat_buf)
4270  continue;
4271  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4272  mov->mdat_buf = NULL;
4273  }
4274 
4275  avio_write(s->pb, buf, buf_size);
4276  av_free(buf);
4277  }
4278 
4279  mov->mdat_size = 0;
4280 
4281  avio_flush(s->pb);
4282  return 0;
4283 }
4284 
4286 {
4287  MOVMuxContext *mov = s->priv_data;
4288  int had_moov = mov->moov_written;
4289  int ret = mov_flush_fragment(s);
4290  if (ret < 0)
4291  return ret;
4292  // If using delay_moov, the first flush only wrote the moov,
4293  // not the actual moof+mdat pair, thus flush once again.
4294  if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4295  ret = mov_flush_fragment(s);
4296  return ret;
4297 }
4298 
4300 {
4301  MOVMuxContext *mov = s->priv_data;
4302  AVIOContext *pb = s->pb;
4303  MOVTrack *trk = &mov->tracks[pkt->stream_index];
4304  AVCodecContext *enc = trk->enc;
4305  unsigned int samples_in_chunk = 0;
4306  int size = pkt->size, ret = 0;
4307  uint8_t *reformatted_data = NULL;
4308 
4309  if (trk->entry) {
4310  int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4311  if (duration < 0 || duration > INT_MAX) {
4312  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4313  duration, pkt->dts
4314  );
4315 
4316  pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4317  pkt->pts = AV_NOPTS_VALUE;
4318  }
4319  if (pkt->duration < 0) {
4320  av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4321  return AVERROR(EINVAL);
4322  }
4323  }
4324  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4325  int ret;
4326  if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4327  if (mov->frag_interleave && mov->fragments > 0) {
4328  if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4329  if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4330  return ret;
4331  }
4332  }
4333 
4334  if (!trk->mdat_buf) {
4335  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4336  return ret;
4337  }
4338  pb = trk->mdat_buf;
4339  } else {
4340  if (!mov->mdat_buf) {
4341  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4342  return ret;
4343  }
4344  pb = mov->mdat_buf;
4345  }
4346  }
4347 
4348  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4349  /* We must find out how many AMR blocks there are in one packet */
4350  static const uint16_t packed_size[16] =
4351  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4352  int len = 0;
4353 
4354  while (len < size && samples_in_chunk < 100) {
4355  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4356  samples_in_chunk++;
4357  }
4358  if (samples_in_chunk > 1) {
4359  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4360  return -1;
4361  }
4362  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4364  samples_in_chunk = enc->frame_size;
4365  } else if (trk->sample_size)
4366  samples_in_chunk = size / trk->sample_size;
4367  else
4368  samples_in_chunk = 1;
4369 
4370  /* copy extradata if it exists */
4371  if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4372  !TAG_IS_AVCI(trk->tag) &&
4373  (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4374  trk->vos_len = enc->extradata_size;
4375  trk->vos_data = av_malloc(trk->vos_len);
4376  if (!trk->vos_data) {
4377  ret = AVERROR(ENOMEM);
4378  goto err;
4379  }
4380  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4381  }
4382 
4383  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4384  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4385  if (!s->streams[pkt->stream_index]->nb_frames) {
4386  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4387  "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4388  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4389  return -1;
4390  }
4391  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4392  }
4393  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4394  /* from x264 or from bytestream h264 */
4395  /* nal reformating needed */
4396  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4397  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4398  &size);
4399  avio_write(pb, reformatted_data, size);
4400  } else {
4401  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4402  }
4403  } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4404  (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4405  /* extradata is Annex B, assume the bitstream is too and convert it */
4406  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4407  ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4408  avio_write(pb, reformatted_data, size);
4409  } else {
4410  size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4411  }
4412 #if CONFIG_AC3_PARSER
4413  } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4414  size = handle_eac3(mov, pkt, trk);
4415  if (size < 0)
4416  return size;
4417  else if (!size)
4418  goto end;
4419  avio_write(pb, pkt->data, size);
4420 #endif
4421  } else {
4422  avio_write(pb, pkt->data, size);
4423  }
4424 
4425  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4426  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4427  /* copy frame to create needed atoms */
4428  trk->vos_len = size;
4429  trk->vos_data = av_malloc(size);
4430  if (!trk->vos_data) {
4431  ret = AVERROR(ENOMEM);
4432  goto err;
4433  }
4434  memcpy(trk->vos_data, pkt->data, size);
4435  }
4436 
4437  if (trk->entry >= trk->cluster_capacity) {
4438  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4439  if (av_reallocp_array(&trk->cluster, new_capacity,
4440  sizeof(*trk->cluster))) {
4441  ret = AVERROR(ENOMEM);
4442  goto