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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/opt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/timecode.h"
47 #include "hevc.h"
48 #include "rtpenc.h"
49 #include "mov_chan.h"
50 
51 #undef NDEBUG
52 #include <assert.h>
53 
54 static const AVOption options[] = {
55  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56  { "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" },
57  { "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 },
58  { "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" },
59  { "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" },
60  { "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" },
61  { "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" },
62  { "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" },
63  { "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" },
64  { "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" },
65  { "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" },
66  { "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" },
67  { "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" },
68  { "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" },
69  { "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" },
70  { "write_colr", "Write colr atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
71  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
72  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
73  { "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},
74  { "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},
75  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
76  { "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},
77  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
78  { "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},
79  { "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},
80  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
81  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
82  { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
83  { NULL },
84 };
85 
86 #define MOV_CLASS(flavor)\
87 static const AVClass flavor ## _muxer_class = {\
88  .class_name = #flavor " muxer",\
89  .item_name = av_default_item_name,\
90  .option = options,\
91  .version = LIBAVUTIL_VERSION_INT,\
92 };
93 
94 static int get_moov_size(AVFormatContext *s);
95 
96 static int utf8len(const uint8_t *b)
97 {
98  int len = 0;
99  int val;
100  while (*b) {
101  GET_UTF8(val, *b++, return -1;)
102  len++;
103  }
104  return len;
105 }
106 
107 //FIXME support 64 bit variant with wide placeholders
108 static int64_t update_size(AVIOContext *pb, int64_t pos)
109 {
110  int64_t curpos = avio_tell(pb);
111  avio_seek(pb, pos, SEEK_SET);
112  avio_wb32(pb, curpos - pos); /* rewrite size */
113  avio_seek(pb, curpos, SEEK_SET);
114 
115  return curpos - pos;
116 }
117 
118 static int co64_required(const MOVTrack *track)
119 {
120  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
121  return 1;
122  return 0;
123 }
124 
125 /* Chunk offset atom */
126 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
127 {
128  int i;
129  int mode64 = co64_required(track); // use 32 bit size variant if possible
130  int64_t pos = avio_tell(pb);
131  avio_wb32(pb, 0); /* size */
132  if (mode64)
133  ffio_wfourcc(pb, "co64");
134  else
135  ffio_wfourcc(pb, "stco");
136  avio_wb32(pb, 0); /* version & flags */
137  avio_wb32(pb, track->chunkCount); /* entry count */
138  for (i = 0; i < track->entry; i++) {
139  if (!track->cluster[i].chunkNum)
140  continue;
141  if (mode64 == 1)
142  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
143  else
144  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
145  }
146  return update_size(pb, pos);
147 }
148 
149 /* Sample size atom */
150 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
151 {
152  int equalChunks = 1;
153  int i, j, entries = 0, tst = -1, oldtst = -1;
154 
155  int64_t pos = avio_tell(pb);
156  avio_wb32(pb, 0); /* size */
157  ffio_wfourcc(pb, "stsz");
158  avio_wb32(pb, 0); /* version & flags */
159 
160  for (i = 0; i < track->entry; i++) {
161  tst = track->cluster[i].size / track->cluster[i].entries;
162  if (oldtst != -1 && tst != oldtst)
163  equalChunks = 0;
164  oldtst = tst;
165  entries += track->cluster[i].entries;
166  }
167  if (equalChunks && track->entry) {
168  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
169  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
170  avio_wb32(pb, sSize); // sample size
171  avio_wb32(pb, entries); // sample count
172  } else {
173  avio_wb32(pb, 0); // sample size
174  avio_wb32(pb, entries); // sample count
175  for (i = 0; i < track->entry; i++) {
176  for (j = 0; j < track->cluster[i].entries; j++) {
177  avio_wb32(pb, track->cluster[i].size /
178  track->cluster[i].entries);
179  }
180  }
181  }
182  return update_size(pb, pos);
183 }
184 
185 /* Sample to chunk atom */
186 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
187 {
188  int index = 0, oldval = -1, i;
189  int64_t entryPos, curpos;
190 
191  int64_t pos = avio_tell(pb);
192  avio_wb32(pb, 0); /* size */
193  ffio_wfourcc(pb, "stsc");
194  avio_wb32(pb, 0); // version & flags
195  entryPos = avio_tell(pb);
196  avio_wb32(pb, track->chunkCount); // entry count
197  for (i = 0; i < track->entry; i++) {
198  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
199  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
200  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
201  avio_wb32(pb, 0x1); // sample description index
202  oldval = track->cluster[i].samples_in_chunk;
203  index++;
204  }
205  }
206  curpos = avio_tell(pb);
207  avio_seek(pb, entryPos, SEEK_SET);
208  avio_wb32(pb, index); // rewrite size
209  avio_seek(pb, curpos, SEEK_SET);
210 
211  return update_size(pb, pos);
212 }
213 
214 /* Sync sample atom */
215 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
216 {
217  int64_t curpos, entryPos;
218  int i, index = 0;
219  int64_t pos = avio_tell(pb);
220  avio_wb32(pb, 0); // size
221  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
222  avio_wb32(pb, 0); // version & flags
223  entryPos = avio_tell(pb);
224  avio_wb32(pb, track->entry); // entry count
225  for (i = 0; i < track->entry; i++) {
226  if (track->cluster[i].flags & flag) {
227  avio_wb32(pb, i + 1);
228  index++;
229  }
230  }
231  curpos = avio_tell(pb);
232  avio_seek(pb, entryPos, SEEK_SET);
233  avio_wb32(pb, index); // rewrite size
234  avio_seek(pb, curpos, SEEK_SET);
235  return update_size(pb, pos);
236 }
237 
238 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
239 {
240  avio_wb32(pb, 0x11); /* size */
241  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
242  else ffio_wfourcc(pb, "damr");
243  ffio_wfourcc(pb, "FFMP");
244  avio_w8(pb, 0); /* decoder version */
245 
246  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
247  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
248  avio_w8(pb, 0x01); /* Frames per sample */
249  return 0x11;
250 }
251 
252 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
253 {
254  GetBitContext gbc;
255  PutBitContext pbc;
256  uint8_t buf[3];
257  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
258 
259  if (track->vos_len < 7)
260  return -1;
261 
262  avio_wb32(pb, 11);
263  ffio_wfourcc(pb, "dac3");
264 
265  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
266  fscod = get_bits(&gbc, 2);
267  frmsizecod = get_bits(&gbc, 6);
268  bsid = get_bits(&gbc, 5);
269  bsmod = get_bits(&gbc, 3);
270  acmod = get_bits(&gbc, 3);
271  if (acmod == 2) {
272  skip_bits(&gbc, 2); // dsurmod
273  } else {
274  if ((acmod & 1) && acmod != 1)
275  skip_bits(&gbc, 2); // cmixlev
276  if (acmod & 4)
277  skip_bits(&gbc, 2); // surmixlev
278  }
279  lfeon = get_bits1(&gbc);
280 
281  init_put_bits(&pbc, buf, sizeof(buf));
282  put_bits(&pbc, 2, fscod);
283  put_bits(&pbc, 5, bsid);
284  put_bits(&pbc, 3, bsmod);
285  put_bits(&pbc, 3, acmod);
286  put_bits(&pbc, 1, lfeon);
287  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
288  put_bits(&pbc, 5, 0); // reserved
289 
290  flush_put_bits(&pbc);
291  avio_write(pb, buf, sizeof(buf));
292 
293  return 11;
294 }
295 
296 struct eac3_info {
300 
301  /* Layout of the EC3SpecificBox */
302  /* maximum bitrate */
303  uint16_t data_rate;
304  /* number of independent substreams */
306  struct {
307  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
309  /* bit stream identification 5 bits */
311  /* one bit reserved */
312  /* audio service mixing (not supported yet) 1 bit */
313  /* bit stream mode 3 bits */
315  /* audio coding mode 3 bits */
317  /* sub woofer on 1 bit */
319  /* 3 bits reserved */
320  /* number of dependent substreams associated with this substream 4 bits */
322  /* channel locations of the dependent substream(s), if any, 9 bits */
323  uint16_t chan_loc;
324  /* if there is no dependent substream, then one bit reserved instead */
325  } substream[1]; /* TODO: support 8 independent substreams */
326 };
327 
328 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
329 {
330  GetBitContext gbc;
331  AC3HeaderInfo tmp, *hdr = &tmp;
332  struct eac3_info *info;
333  int num_blocks;
334 
335  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
336  return AVERROR(ENOMEM);
337  info = track->eac3_priv;
338 
339  init_get_bits(&gbc, pkt->data, pkt->size * 8);
340  if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
341  /* drop the packets until we see a good one */
342  if (!track->entry) {
343  av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
344  return 0;
345  }
346  return AVERROR_INVALIDDATA;
347  }
348 
349  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
350  num_blocks = hdr->num_blocks;
351 
352  if (!info->ec3_done) {
353  /* AC-3 substream must be the first one */
354  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
355  return AVERROR(EINVAL);
356 
357  /* this should always be the case, given that our AC-3 parser
358  * concatenates dependent frames to their independent parent */
360  /* substream ids must be incremental */
361  if (hdr->substreamid > info->num_ind_sub + 1)
362  return AVERROR(EINVAL);
363 
364  if (hdr->substreamid == info->num_ind_sub + 1) {
365  //info->num_ind_sub++;
366  avpriv_request_sample(track->enc, "Multiple independent substreams");
367  return AVERROR_PATCHWELCOME;
368  } else if (hdr->substreamid < info->num_ind_sub ||
369  hdr->substreamid == 0 && info->substream[0].bsid) {
370  info->ec3_done = 1;
371  goto concatenate;
372  }
373  }
374 
375  /* fill the info needed for the "dec3" atom */
376  info->substream[hdr->substreamid].fscod = hdr->sr_code;
377  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
378  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
379  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
380  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
381 
382  /* Parse dependent substream(s), if any */
383  if (pkt->size != hdr->frame_size) {
384  int cumul_size = hdr->frame_size;
385  int parent = hdr->substreamid;
386 
387  while (cumul_size != pkt->size) {
388  int i;
389  init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
390  if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
391  return AVERROR_INVALIDDATA;
393  return AVERROR(EINVAL);
394  cumul_size += hdr->frame_size;
395  info->substream[parent].num_dep_sub++;
396 
397  /* header is parsed up to lfeon, but custom channel map may be needed */
398  /* skip bsid */
399  skip_bits(&gbc, 5);
400  /* skip volume control params */
401  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
402  skip_bits(&gbc, 5); // skip dialog normalization
403  if (get_bits1(&gbc)) {
404  skip_bits(&gbc, 8); // skip compression gain word
405  }
406  }
407  /* get the dependent stream channel map, if exists */
408  if (get_bits1(&gbc))
409  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
410  else
411  info->substream[parent].chan_loc |= hdr->channel_mode;
412  }
413  }
414  }
415 
416 concatenate:
417  if (!info->num_blocks && num_blocks == 6)
418  return pkt->size;
419  else if (info->num_blocks + num_blocks > 6)
420  return AVERROR_INVALIDDATA;
421 
422  if (!info->num_blocks) {
423  int ret;
424  if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
425  return ret;
426  info->num_blocks = num_blocks;
427  return 0;
428  } else {
429  int ret;
430  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
431  return ret;
432  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
433  info->num_blocks += num_blocks;
434  info->pkt.duration += pkt->duration;
435  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
436  return ret;
437  if (info->num_blocks != 6)
438  return 0;
439  av_free_packet(pkt);
440  if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
441  return ret;
442  av_free_packet(&info->pkt);
443  info->num_blocks = 0;
444  }
445 
446  return pkt->size;
447 }
448 
449 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
450 {
451  PutBitContext pbc;
452  uint8_t *buf;
453  struct eac3_info *info;
454  int size, i;
455 
456  if (!track->eac3_priv)
457  return AVERROR(EINVAL);
458 
459  info = track->eac3_priv;
460  size = 2 + 4 * (info->num_ind_sub + 1);
461  buf = av_malloc(size);
462  if (!buf) {
463  size = AVERROR(ENOMEM);
464  goto end;
465  }
466 
467  init_put_bits(&pbc, buf, size);
468  put_bits(&pbc, 13, info->data_rate);
469  put_bits(&pbc, 3, info->num_ind_sub);
470  for (i = 0; i <= info->num_ind_sub; i++) {
471  put_bits(&pbc, 2, info->substream[i].fscod);
472  put_bits(&pbc, 5, info->substream[i].bsid);
473  put_bits(&pbc, 1, 0); /* reserved */
474  put_bits(&pbc, 1, 0); /* asvc */
475  put_bits(&pbc, 3, info->substream[i].bsmod);
476  put_bits(&pbc, 3, info->substream[i].acmod);
477  put_bits(&pbc, 1, info->substream[i].lfeon);
478  put_bits(&pbc, 5, 0); /* reserved */
479  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
480  if (!info->substream[i].num_dep_sub) {
481  put_bits(&pbc, 1, 0); /* reserved */
482  size--;
483  } else {
484  put_bits(&pbc, 9, info->substream[i].chan_loc);
485  }
486  }
487  flush_put_bits(&pbc);
488 
489  avio_wb32(pb, size + 8);
490  ffio_wfourcc(pb, "dec3");
491  avio_write(pb, buf, size);
492 
493  av_free(buf);
494 
495 end:
496  av_free_packet(&info->pkt);
497  av_freep(&track->eac3_priv);
498 
499  return size;
500 }
501 
502 /**
503  * This function writes extradata "as is".
504  * Extradata must be formatted like a valid atom (with size and tag).
505  */
507 {
508  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
509  return track->enc->extradata_size;
510 }
511 
513 {
514  avio_wb32(pb, 10);
515  ffio_wfourcc(pb, "enda");
516  avio_wb16(pb, 1); /* little endian */
517  return 10;
518 }
519 
521 {
522  avio_wb32(pb, 10);
523  ffio_wfourcc(pb, "enda");
524  avio_wb16(pb, 0); /* big endian */
525  return 10;
526 }
527 
528 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
529 {
530  int i = 3;
531  avio_w8(pb, tag);
532  for (; i > 0; i--)
533  avio_w8(pb, (size >> (7 * i)) | 0x80);
534  avio_w8(pb, size & 0x7F);
535 }
536 
537 static unsigned compute_avg_bitrate(MOVTrack *track)
538 {
539  uint64_t size = 0;
540  int i;
541  if (!track->track_duration)
542  return 0;
543  for (i = 0; i < track->entry; i++)
544  size += track->cluster[i].size;
545  return size * 8 * track->timescale / track->track_duration;
546 }
547 
548 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
549 {
550  int64_t pos = avio_tell(pb);
551  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
552  unsigned avg_bitrate;
553 
554  avio_wb32(pb, 0); // size
555  ffio_wfourcc(pb, "esds");
556  avio_wb32(pb, 0); // Version
557 
558  // ES descriptor
559  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
560  avio_wb16(pb, track->track_id);
561  avio_w8(pb, 0x00); // flags (= no flags)
562 
563  // DecoderConfig descriptor
564  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
565 
566  // Object type indication
567  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
568  track->enc->codec_id == AV_CODEC_ID_MP3) &&
569  track->enc->sample_rate > 24000)
570  avio_w8(pb, 0x6B); // 11172-3
571  else
573 
574  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
575  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
576  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
577  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
578  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
579  avio_w8(pb, 0x15); // flags (= Audiostream)
580  else
581  avio_w8(pb, 0x11); // flags (= Visualstream)
582 
583  avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
584 
585  avg_bitrate = compute_avg_bitrate(track);
586  // maxbitrate (FIXME should be max rate in any 1 sec window)
587  avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
588  avio_wb32(pb, avg_bitrate);
589 
590  if (track->vos_len) {
591  // DecoderSpecific info descriptor
592  put_descr(pb, 0x05, track->vos_len);
593  avio_write(pb, track->vos_data, track->vos_len);
594  }
595 
596  // SL descriptor
597  put_descr(pb, 0x06, 1);
598  avio_w8(pb, 0x02);
599  return update_size(pb, pos);
600 }
601 
603 {
604  return codec_id == AV_CODEC_ID_PCM_S24LE ||
605  codec_id == AV_CODEC_ID_PCM_S32LE ||
606  codec_id == AV_CODEC_ID_PCM_F32LE ||
607  codec_id == AV_CODEC_ID_PCM_F64LE;
608 }
609 
611 {
612  return codec_id == AV_CODEC_ID_PCM_S24BE ||
613  codec_id == AV_CODEC_ID_PCM_S32BE ||
614  codec_id == AV_CODEC_ID_PCM_F32BE ||
615  codec_id == AV_CODEC_ID_PCM_F64BE;
616 }
617 
618 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
619 {
620  int ret;
621  int64_t pos = avio_tell(pb);
622  avio_wb32(pb, 0);
623  avio_wl32(pb, track->tag); // store it byteswapped
624  track->enc->codec_tag = av_bswap16(track->tag >> 16);
625  if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
626  return ret;
627  return update_size(pb, pos);
628 }
629 
630 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
631 {
632  int ret;
633  int64_t pos = avio_tell(pb);
634  avio_wb32(pb, 0);
635  ffio_wfourcc(pb, "wfex");
636  if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
637  return ret;
638  return update_size(pb, pos);
639 }
640 
641 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
642 {
643  uint32_t layout_tag, bitmap;
644  int64_t pos = avio_tell(pb);
645 
646  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
647  track->enc->channel_layout,
648  &bitmap);
649  if (!layout_tag) {
650  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
651  "lack of channel information\n");
652  return 0;
653  }
654 
655  if (track->multichannel_as_mono)
656  return 0;
657 
658  avio_wb32(pb, 0); // Size
659  ffio_wfourcc(pb, "chan"); // Type
660  avio_w8(pb, 0); // Version
661  avio_wb24(pb, 0); // Flags
662  avio_wb32(pb, layout_tag); // mChannelLayoutTag
663  avio_wb32(pb, bitmap); // mChannelBitmap
664  avio_wb32(pb, 0); // mNumberChannelDescriptions
665 
666  return update_size(pb, pos);
667 }
668 
669 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
670 {
671  int64_t pos = avio_tell(pb);
672 
673  avio_wb32(pb, 0); /* size */
674  ffio_wfourcc(pb, "wave");
675 
676  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
677  avio_wb32(pb, 12); /* size */
678  ffio_wfourcc(pb, "frma");
679  avio_wl32(pb, track->tag);
680  }
681 
682  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
683  /* useless atom needed by mplayer, ipod, not needed by quicktime */
684  avio_wb32(pb, 12); /* size */
685  ffio_wfourcc(pb, "mp4a");
686  avio_wb32(pb, 0);
687  mov_write_esds_tag(pb, track);
688  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
689  mov_write_enda_tag(pb);
690  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
692  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
693  mov_write_amr_tag(pb, track);
694  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
695  mov_write_ac3_tag(pb, track);
696  } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
697  mov_write_eac3_tag(pb, track);
698  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
699  track->enc->codec_id == AV_CODEC_ID_QDM2) {
700  mov_write_extradata_tag(pb, track);
701  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
703  mov_write_ms_tag(pb, track);
704  }
705 
706  avio_wb32(pb, 8); /* size */
707  avio_wb32(pb, 0); /* null tag */
708 
709  return update_size(pb, pos);
710 }
711 
713 {
714  uint8_t *unescaped;
715  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
716  int unescaped_size, seq_found = 0;
717  int level = 0, interlace = 0;
718  int packet_seq = track->vc1_info.packet_seq;
719  int packet_entry = track->vc1_info.packet_entry;
720  int slices = track->vc1_info.slices;
721  PutBitContext pbc;
722 
723  if (track->start_dts == AV_NOPTS_VALUE) {
724  /* No packets written yet, vc1_info isn't authoritative yet. */
725  /* Assume inline sequence and entry headers. */
726  packet_seq = packet_entry = 1;
727  av_log(NULL, AV_LOG_WARNING,
728  "moov atom written before any packets, unable to write correct "
729  "dvc1 atom. Set the delay_moov flag to fix this.\n");
730  }
731 
732  unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
733  if (!unescaped)
734  return AVERROR(ENOMEM);
735  start = find_next_marker(track->vos_data, end);
736  for (next = start; next < end; start = next) {
737  GetBitContext gb;
738  int size;
739  next = find_next_marker(start + 4, end);
740  size = next - start - 4;
741  if (size <= 0)
742  continue;
743  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
744  init_get_bits(&gb, unescaped, 8 * unescaped_size);
745  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
746  int profile = get_bits(&gb, 2);
747  if (profile != PROFILE_ADVANCED) {
748  av_free(unescaped);
749  return AVERROR(ENOSYS);
750  }
751  seq_found = 1;
752  level = get_bits(&gb, 3);
753  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
754  * width, height */
755  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
756  skip_bits(&gb, 1); /* broadcast */
757  interlace = get_bits1(&gb);
758  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
759  }
760  }
761  if (!seq_found) {
762  av_free(unescaped);
763  return AVERROR(ENOSYS);
764  }
765 
766  init_put_bits(&pbc, buf, 7);
767  /* VC1DecSpecStruc */
768  put_bits(&pbc, 4, 12); /* profile - advanced */
769  put_bits(&pbc, 3, level);
770  put_bits(&pbc, 1, 0); /* reserved */
771  /* VC1AdvDecSpecStruc */
772  put_bits(&pbc, 3, level);
773  put_bits(&pbc, 1, 0); /* cbr */
774  put_bits(&pbc, 6, 0); /* reserved */
775  put_bits(&pbc, 1, !interlace); /* no interlace */
776  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
777  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
778  put_bits(&pbc, 1, !slices); /* no slice code */
779  put_bits(&pbc, 1, 0); /* no bframe */
780  put_bits(&pbc, 1, 0); /* reserved */
781 
782  /* framerate */
783  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
784  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
785  else
786  put_bits32(&pbc, 0xffffffff);
787 
788  flush_put_bits(&pbc);
789 
790  av_free(unescaped);
791 
792  return 0;
793 }
794 
795 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
796 {
797  uint8_t buf[7] = { 0 };
798  int ret;
799 
800  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
801  return ret;
802 
803  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
804  ffio_wfourcc(pb, "dvc1");
805  avio_write(pb, buf, sizeof(buf));
806  avio_write(pb, track->vos_data, track->vos_len);
807 
808  return 0;
809 }
810 
811 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
812 {
813  avio_wb32(pb, track->vos_len + 8);
814  ffio_wfourcc(pb, "glbl");
815  avio_write(pb, track->vos_data, track->vos_len);
816  return 8 + track->vos_len;
817 }
818 
819 /**
820  * Compute flags for 'lpcm' tag.
821  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
822  */
824 {
825  switch (codec_id) {
828  return 11;
831  return 9;
832  case AV_CODEC_ID_PCM_U8:
833  return 10;
837  return 14;
838  case AV_CODEC_ID_PCM_S8:
842  return 12;
843  default:
844  return 0;
845  }
846 }
847 
848 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
849 {
850  int64_t next_dts;
851 
852  if (cluster_idx >= track->entry)
853  return 0;
854 
855  if (cluster_idx + 1 == track->entry)
856  next_dts = track->track_duration + track->start_dts;
857  else
858  next_dts = track->cluster[cluster_idx + 1].dts;
859 
860  next_dts -= track->cluster[cluster_idx].dts;
861 
862  av_assert0(next_dts >= 0);
863  av_assert0(next_dts <= INT_MAX);
864 
865  return next_dts;
866 }
867 
869 {
870  int i, first_duration;
871 
872 // return track->enc->frame_size;
873 
874  /* use 1 for raw PCM */
875  if (!track->audio_vbr)
876  return 1;
877 
878  /* check to see if duration is constant for all clusters */
879  if (!track->entry)
880  return 0;
881  first_duration = get_cluster_duration(track, 0);
882  for (i = 1; i < track->entry; i++) {
883  if (get_cluster_duration(track, i) != first_duration)
884  return 0;
885  }
886  return first_duration;
887 }
888 
889 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
890 {
891  int64_t pos = avio_tell(pb);
892  int version = 0;
893  uint32_t tag = track->tag;
894 
895  if (track->mode == MODE_MOV) {
896  if (track->timescale > UINT16_MAX) {
897  if (mov_get_lpcm_flags(track->enc->codec_id))
898  tag = AV_RL32("lpcm");
899  version = 2;
900  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
901  mov_pcm_be_gt16(track->enc->codec_id) ||
902  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
904  track->enc->codec_id == AV_CODEC_ID_QDM2) {
905  version = 1;
906  }
907  }
908 
909  avio_wb32(pb, 0); /* size */
910  avio_wl32(pb, tag); // store it byteswapped
911  avio_wb32(pb, 0); /* Reserved */
912  avio_wb16(pb, 0); /* Reserved */
913  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
914 
915  /* SoundDescription */
916  avio_wb16(pb, version); /* Version */
917  avio_wb16(pb, 0); /* Revision level */
918  avio_wb32(pb, 0); /* Reserved */
919 
920  if (version == 2) {
921  avio_wb16(pb, 3);
922  avio_wb16(pb, 16);
923  avio_wb16(pb, 0xfffe);
924  avio_wb16(pb, 0);
925  avio_wb32(pb, 0x00010000);
926  avio_wb32(pb, 72);
927  avio_wb64(pb, av_double2int(track->enc->sample_rate));
928  avio_wb32(pb, track->enc->channels);
929  avio_wb32(pb, 0x7F000000);
932  avio_wb32(pb, track->sample_size);
933  avio_wb32(pb, get_samples_per_packet(track));
934  } else {
935  if (track->mode == MODE_MOV) {
936  avio_wb16(pb, track->enc->channels);
937  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
938  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
939  avio_wb16(pb, 8); /* bits per sample */
940  else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
941  avio_wb16(pb, track->enc->bits_per_coded_sample);
942  else
943  avio_wb16(pb, 16);
944  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
945  } else { /* reserved for mp4/3gp */
946  avio_wb16(pb, 2);
947  avio_wb16(pb, 16);
948  avio_wb16(pb, 0);
949  }
950 
951  avio_wb16(pb, 0); /* packet size (= 0) */
952  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
953  track->enc->sample_rate : 0);
954  avio_wb16(pb, 0); /* Reserved */
955  }
956 
957  if (version == 1) { /* SoundDescription V1 extended info */
958  if (mov_pcm_le_gt16(track->enc->codec_id) ||
959  mov_pcm_be_gt16(track->enc->codec_id))
960  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
961  else
962  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
963  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
964  avio_wb32(pb, track->sample_size); /* Bytes per frame */
965  avio_wb32(pb, 2); /* Bytes per sample */
966  }
967 
968  if (track->mode == MODE_MOV &&
969  (track->enc->codec_id == AV_CODEC_ID_AAC ||
970  track->enc->codec_id == AV_CODEC_ID_AC3 ||
971  track->enc->codec_id == AV_CODEC_ID_EAC3 ||
972  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
973  track->enc->codec_id == AV_CODEC_ID_ALAC ||
974  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
976  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
977  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
978  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
979  mov_write_wave_tag(pb, track);
980  else if (track->tag == MKTAG('m','p','4','a'))
981  mov_write_esds_tag(pb, track);
982  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
983  mov_write_amr_tag(pb, track);
984  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
985  mov_write_ac3_tag(pb, track);
986  else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
987  mov_write_eac3_tag(pb, track);
988  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
989  mov_write_extradata_tag(pb, track);
990  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
991  mov_write_wfex_tag(pb, track);
992  else if (track->vos_len > 0)
993  mov_write_glbl_tag(pb, track);
994 
995  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
996  mov_write_chan_tag(pb, track);
997 
998  return update_size(pb, pos);
999 }
1000 
1002 {
1003  avio_wb32(pb, 0xf); /* size */
1004  ffio_wfourcc(pb, "d263");
1005  ffio_wfourcc(pb, "FFMP");
1006  avio_w8(pb, 0); /* decoder version */
1007  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1008  avio_w8(pb, 0xa); /* level */
1009  avio_w8(pb, 0); /* profile */
1010  return 0xf;
1011 }
1012 
1013 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1014 {
1015  int64_t pos = avio_tell(pb);
1016 
1017  avio_wb32(pb, 0);
1018  ffio_wfourcc(pb, "avcC");
1019  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1020  return update_size(pb, pos);
1021 }
1022 
1023 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1024 {
1025  int64_t pos = avio_tell(pb);
1026 
1027  avio_wb32(pb, 0);
1028  ffio_wfourcc(pb, "hvcC");
1029  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1030  return update_size(pb, pos);
1031 }
1032 
1033 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1034 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1035 {
1036  int i;
1037  avio_wb32(pb, 24); /* size */
1038  ffio_wfourcc(pb, "ACLR");
1039  ffio_wfourcc(pb, "ACLR");
1040  ffio_wfourcc(pb, "0001");
1041  if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
1042  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1043  } else { /* Full range (0-255) */
1044  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1045  }
1046  avio_wb32(pb, 0); /* unknown */
1047 
1048  avio_wb32(pb, 24); /* size */
1049  ffio_wfourcc(pb, "APRG");
1050  ffio_wfourcc(pb, "APRG");
1051  ffio_wfourcc(pb, "0001");
1052  avio_wb32(pb, 1); /* unknown */
1053  avio_wb32(pb, 0); /* unknown */
1054 
1055  avio_wb32(pb, 120); /* size */
1056  ffio_wfourcc(pb, "ARES");
1057  ffio_wfourcc(pb, "ARES");
1058  ffio_wfourcc(pb, "0001");
1059  avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
1060  avio_wb32(pb, track->enc->width);
1061  /* values below are based on samples created with quicktime and avid codecs */
1062  if (track->vos_data[5] & 2) { // interlaced
1063  avio_wb32(pb, track->enc->height / 2);
1064  avio_wb32(pb, 2); /* unknown */
1065  avio_wb32(pb, 0); /* unknown */
1066  avio_wb32(pb, 4); /* unknown */
1067  } else {
1068  avio_wb32(pb, track->enc->height);
1069  avio_wb32(pb, 1); /* unknown */
1070  avio_wb32(pb, 0); /* unknown */
1071  if (track->enc->height == 1080)
1072  avio_wb32(pb, 5); /* unknown */
1073  else
1074  avio_wb32(pb, 6); /* unknown */
1075  }
1076  /* padding */
1077  for (i = 0; i < 10; i++)
1078  avio_wb64(pb, 0);
1079 
1080  /* extra padding for stsd needed */
1081  avio_wb32(pb, 0);
1082  return 0;
1083 }
1084 
1085 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1086 {
1087  avio_wb32(pb, 12);
1088  ffio_wfourcc(pb, "DpxE");
1089  if (track->enc->extradata_size >= 12 &&
1090  !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1091  avio_wb32(pb, track->enc->extradata[11]);
1092  } else {
1093  avio_wb32(pb, 1);
1094  }
1095  return 0;
1096 }
1097 
1099 {
1100  int tag = track->enc->codec_tag;
1101 
1103  return 0;
1104 
1105  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1106  else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1107  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1108  else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1109  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1110  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1111  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1112  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1113  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1114  else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1115 
1116  return tag;
1117 }
1118 
1119 static const AVCodecTag codec_ipod_tags[] = {
1120  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1121  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1122  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1123  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1124  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1125  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1126  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1127  { AV_CODEC_ID_NONE, 0 },
1128 };
1129 
1131 {
1132  int tag = track->enc->codec_tag;
1133 
1134  // keep original tag for subs, ipod supports both formats
1135  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1136  (tag == MKTAG('t', 'x', '3', 'g') ||
1137  tag == MKTAG('t', 'e', 'x', 't'))))
1138  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1139 
1140  if (!av_match_ext(s->filename, "m4a") &&
1141  !av_match_ext(s->filename, "m4b") &&
1142  !av_match_ext(s->filename, "m4v"))
1143  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1144  "Quicktime/Ipod might not play the file\n");
1145 
1146  return tag;
1147 }
1148 
1150 {
1151  int tag;
1152 
1153  if (track->enc->width == 720) { /* SD */
1154  if (track->enc->height == 480) { /* NTSC */
1155  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1156  else tag = MKTAG('d','v','c',' ');
1157  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1158  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1159  else tag = MKTAG('d','v','p','p');
1160  } else if (track->enc->height == 720) { /* HD 720 line */
1161  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1162  else tag = MKTAG('d','v','h','p');
1163  } else if (track->enc->height == 1080) { /* HD 1080 line */
1164  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1165  else tag = MKTAG('d','v','h','6');
1166  } else {
1167  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1168  return 0;
1169  }
1170 
1171  return tag;
1172 }
1173 
1175 {
1176  AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1177  /* if the codec time base makes no sense, try to fallback on stream frame rate */
1178  if (av_timecode_check_frame_rate(rate) < 0) {
1179  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1180  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1181  rate = st->avg_frame_rate;
1182  }
1183 
1184  return rate;
1185 }
1186 
1188 {
1189  int tag = track->enc->codec_tag;
1191  AVStream *st = track->st;
1192  int rate = av_q2d(find_fps(s, st));
1193 
1194  if (!tag)
1195  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1196 
1197  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1198  if (track->enc->width == 1280 && track->enc->height == 720) {
1199  if (!interlaced) {
1200  if (rate == 24) tag = MKTAG('x','d','v','4');
1201  else if (rate == 25) tag = MKTAG('x','d','v','5');
1202  else if (rate == 30) tag = MKTAG('x','d','v','1');
1203  else if (rate == 50) tag = MKTAG('x','d','v','a');
1204  else if (rate == 60) tag = MKTAG('x','d','v','9');
1205  }
1206  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1207  if (!interlaced) {
1208  if (rate == 24) tag = MKTAG('x','d','v','6');
1209  else if (rate == 25) tag = MKTAG('x','d','v','7');
1210  else if (rate == 30) tag = MKTAG('x','d','v','8');
1211  } else {
1212  if (rate == 25) tag = MKTAG('x','d','v','3');
1213  else if (rate == 30) tag = MKTAG('x','d','v','2');
1214  }
1215  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1216  if (!interlaced) {
1217  if (rate == 24) tag = MKTAG('x','d','v','d');
1218  else if (rate == 25) tag = MKTAG('x','d','v','e');
1219  else if (rate == 30) tag = MKTAG('x','d','v','f');
1220  } else {
1221  if (rate == 25) tag = MKTAG('x','d','v','c');
1222  else if (rate == 30) tag = MKTAG('x','d','v','b');
1223  }
1224  }
1225  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1226  if (track->enc->width == 1280 && track->enc->height == 720) {
1227  if (!interlaced) {
1228  if (rate == 24) tag = MKTAG('x','d','5','4');
1229  else if (rate == 25) tag = MKTAG('x','d','5','5');
1230  else if (rate == 30) tag = MKTAG('x','d','5','1');
1231  else if (rate == 50) tag = MKTAG('x','d','5','a');
1232  else if (rate == 60) tag = MKTAG('x','d','5','9');
1233  }
1234  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1235  if (!interlaced) {
1236  if (rate == 24) tag = MKTAG('x','d','5','d');
1237  else if (rate == 25) tag = MKTAG('x','d','5','e');
1238  else if (rate == 30) tag = MKTAG('x','d','5','f');
1239  } else {
1240  if (rate == 25) tag = MKTAG('x','d','5','c');
1241  else if (rate == 30) tag = MKTAG('x','d','5','b');
1242  }
1243  }
1244  }
1245 
1246  return tag;
1247 }
1248 
1250 {
1251  int tag = track->enc->codec_tag;
1253  AVStream *st = track->st;
1254  int rate = av_q2d(find_fps(s, st));
1255 
1256  if (!tag)
1257  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1258 
1259  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1260  if (track->enc->width == 960 && track->enc->height == 720) {
1261  if (!interlaced) {
1262  if (rate == 24) tag = MKTAG('a','i','5','p');
1263  else if (rate == 25) tag = MKTAG('a','i','5','q');
1264  else if (rate == 30) tag = MKTAG('a','i','5','p');
1265  else if (rate == 50) tag = MKTAG('a','i','5','q');
1266  else if (rate == 60) tag = MKTAG('a','i','5','p');
1267  }
1268  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1269  if (!interlaced) {
1270  if (rate == 24) tag = MKTAG('a','i','5','3');
1271  else if (rate == 25) tag = MKTAG('a','i','5','2');
1272  else if (rate == 30) tag = MKTAG('a','i','5','3');
1273  } else {
1274  if (rate == 50) tag = MKTAG('a','i','5','5');
1275  else if (rate == 60) tag = MKTAG('a','i','5','6');
1276  }
1277  }
1278  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1279  if (track->enc->width == 1280 && track->enc->height == 720) {
1280  if (!interlaced) {
1281  if (rate == 24) tag = MKTAG('a','i','1','p');
1282  else if (rate == 25) tag = MKTAG('a','i','1','q');
1283  else if (rate == 30) tag = MKTAG('a','i','1','p');
1284  else if (rate == 50) tag = MKTAG('a','i','1','q');
1285  else if (rate == 60) tag = MKTAG('a','i','1','p');
1286  }
1287  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1288  if (!interlaced) {
1289  if (rate == 24) tag = MKTAG('a','i','1','3');
1290  else if (rate == 25) tag = MKTAG('a','i','1','2');
1291  else if (rate == 30) tag = MKTAG('a','i','1','3');
1292  } else {
1293  if (rate == 25) tag = MKTAG('a','i','1','5');
1294  else if (rate == 50) tag = MKTAG('a','i','1','5');
1295  else if (rate == 60) tag = MKTAG('a','i','1','6');
1296  }
1297  } else if ( track->enc->width == 4096 && track->enc->height == 2160
1298  || track->enc->width == 3840 && track->enc->height == 2160
1299  || track->enc->width == 2048 && track->enc->height == 1080) {
1300  tag = MKTAG('a','i','v','x');
1301  }
1302  }
1303 
1304  return tag;
1305 }
1306 
1307 static const struct {
1309  uint32_t tag;
1310  unsigned bps;
1311 } mov_pix_fmt_tags[] = {
1312  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1313  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1314  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1315  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1316  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1317  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1318  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1319  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1320  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1321  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1322  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1323  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1324  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1325  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1326  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1327 };
1328 
1330 {
1331  int tag = track->enc->codec_tag;
1332  int i;
1333  enum AVPixelFormat pix_fmt;
1334 
1335  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1336  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1337  tag = mov_pix_fmt_tags[i].tag;
1338  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1339  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1340  break;
1341  }
1342  }
1343 
1345  track->enc->bits_per_coded_sample);
1346  if (tag == MKTAG('r','a','w',' ') &&
1347  track->enc->pix_fmt != pix_fmt &&
1348  track->enc->pix_fmt != AV_PIX_FMT_NONE)
1349  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1350  av_get_pix_fmt_name(track->enc->pix_fmt));
1351  return tag;
1352 }
1353 
1355 {
1356  int tag = track->enc->codec_tag;
1357 
1358  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1359  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1360  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1361  track->enc->codec_id == AV_CODEC_ID_H263 ||
1362  track->enc->codec_id == AV_CODEC_ID_H264 ||
1363  track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1364  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1365  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1366  tag = mov_get_dv_codec_tag(s, track);
1367  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1368  tag = mov_get_rawvideo_codec_tag(s, track);
1369  else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1370  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1371  else if (track->enc->codec_id == AV_CODEC_ID_H264)
1372  tag = mov_get_h264_codec_tag(s, track);
1373  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1375  if (!tag) { // if no mac fcc found, try with Microsoft tags
1377  if (tag)
1378  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1379  "the file may be unplayable!\n");
1380  }
1381  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1383  if (!tag) { // if no mac fcc found, try with Microsoft tags
1384  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1385  if (ms_tag) {
1386  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1387  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1388  "the file may be unplayable!\n");
1389  }
1390  }
1391  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1393  }
1394 
1395  return tag;
1396 }
1397 
1398 static const AVCodecTag codec_3gp_tags[] = {
1399  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1400  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1401  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1402  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1403  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1404  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1405  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1406  { AV_CODEC_ID_NONE, 0 },
1407 };
1408 
1409 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1410  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1411  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1412  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1413  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1414  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1415  { AV_CODEC_ID_NONE, 0 },
1416 };
1417 
1419 {
1420  int tag;
1421 
1422  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1423  tag = mp4_get_codec_tag(s, track);
1424  else if (track->mode == MODE_ISM) {
1425  tag = mp4_get_codec_tag(s, track);
1426  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1427  tag = MKTAG('w', 'm', 'a', ' ');
1428  } else if (track->mode == MODE_IPOD)
1429  tag = ipod_get_codec_tag(s, track);
1430  else if (track->mode & MODE_3GP)
1431  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1432  else if (track->mode == MODE_F4V)
1433  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1434  else
1435  tag = mov_get_codec_tag(s, track);
1436 
1437  return tag;
1438 }
1439 
1440 /** Write uuid atom.
1441  * Needed to make file play in iPods running newest firmware
1442  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1443  */
1445 {
1446  avio_wb32(pb, 28);
1447  ffio_wfourcc(pb, "uuid");
1448  avio_wb32(pb, 0x6b6840f2);
1449  avio_wb32(pb, 0x5f244fc5);
1450  avio_wb32(pb, 0xba39a51b);
1451  avio_wb32(pb, 0xcf0323f3);
1452  avio_wb32(pb, 0x0);
1453  return 28;
1454 }
1455 
1456 static const uint16_t fiel_data[] = {
1457  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1458 };
1459 
1460 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1461 {
1462  unsigned mov_field_order = 0;
1463  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1464  mov_field_order = fiel_data[track->enc->field_order];
1465  else
1466  return 0;
1467  avio_wb32(pb, 10);
1468  ffio_wfourcc(pb, "fiel");
1469  avio_wb16(pb, mov_field_order);
1470  return 10;
1471 }
1472 
1474 {
1475  int64_t pos = avio_tell(pb);
1476  avio_wb32(pb, 0); /* size */
1477  avio_wl32(pb, track->tag); // store it byteswapped
1478  avio_wb32(pb, 0); /* Reserved */
1479  avio_wb16(pb, 0); /* Reserved */
1480  avio_wb16(pb, 1); /* Data-reference index */
1481 
1482  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1483  mov_write_esds_tag(pb, track);
1484  else if (track->enc->extradata_size)
1485  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1486 
1487  return update_size(pb, pos);
1488 }
1489 
1490 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1491 {
1492  AVRational sar;
1493  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1494  track->enc->sample_aspect_ratio.den, INT_MAX);
1495 
1496  avio_wb32(pb, 16);
1497  ffio_wfourcc(pb, "pasp");
1498  avio_wb32(pb, sar.num);
1499  avio_wb32(pb, sar.den);
1500  return 16;
1501 }
1502 
1503 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1504 {
1505  // Ref: https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1506 
1507  if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1508  track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1509  track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1510  if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1511  || (track->enc->width == 1280 && track->enc->height == 720)) {
1512  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1514  } else if (track->enc->width == 720 && track->height == 576) {
1515  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1517  } else if (track->enc->width == 720 &&
1518  (track->height == 486 || track->height == 480)) {
1519  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1521  } else {
1522  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1523  }
1524  switch (track->enc->color_primaries) {
1525  case AVCOL_PRI_BT709:
1526  track->enc->color_trc = AVCOL_TRC_BT709;
1527  track->enc->colorspace = AVCOL_SPC_BT709;
1528  break;
1529  case AVCOL_PRI_SMPTE170M:
1530  case AVCOL_PRI_BT470BG:
1531  track->enc->color_trc = AVCOL_TRC_BT709;
1533  break;
1534  }
1535  }
1536 
1537  avio_wb32(pb, 18);
1538  ffio_wfourcc(pb, "colr");
1539  ffio_wfourcc(pb, "nclc");
1540  switch (track->enc->color_primaries) {
1541  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1542  case AVCOL_PRI_SMPTE170M:
1543  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1544  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1545  default: avio_wb16(pb, 2);
1546  }
1547  switch (track->enc->color_trc) {
1548  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1549  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1550  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1551  default: avio_wb16(pb, 2);
1552  }
1553  switch (track->enc->colorspace) {
1554  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1555  case AVCOL_PRI_SMPTE170M: avio_wb16(pb, 6); break;
1556  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 7); break;
1557  default: avio_wb16(pb, 2);
1558  }
1559 
1560  return 18;
1561 }
1562 
1563 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1564 {
1565  AVDictionaryEntry *encoder;
1566  int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1567  || (track->enc->width == 1440 && track->enc->height == 1080)
1568  || (track->enc->width == 1920 && track->enc->height == 1080);
1569 
1570  if (track->mode == MODE_MOV &&
1571  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1572  av_strlcpy(compressor_name, encoder->value, 32);
1573  } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1575  AVStream *st = track->st;
1576  int rate = av_q2d(find_fps(NULL, st));
1577  av_strlcatf(compressor_name, len, "XDCAM");
1578  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1579  av_strlcatf(compressor_name, len, " HD422");
1580  } else if(track->enc->width == 1440) {
1581  av_strlcatf(compressor_name, len, " HD");
1582  } else
1583  av_strlcatf(compressor_name, len, " EX");
1584 
1585  av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1586 
1587  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1588  }
1589 }
1590 
1592 {
1593  int64_t pos = avio_tell(pb);
1594  char compressor_name[32] = { 0 };
1595 
1596  avio_wb32(pb, 0); /* size */
1597  avio_wl32(pb, track->tag); // store it byteswapped
1598  avio_wb32(pb, 0); /* Reserved */
1599  avio_wb16(pb, 0); /* Reserved */
1600  avio_wb16(pb, 1); /* Data-reference index */
1601 
1602  avio_wb16(pb, 0); /* Codec stream version */
1603  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1604  if (track->mode == MODE_MOV) {
1605  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1606  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1607  avio_wb32(pb, 0); /* Temporal Quality */
1608  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1609  } else {
1610  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1611  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1612  }
1613  } else {
1614  avio_wb32(pb, 0); /* Reserved */
1615  avio_wb32(pb, 0); /* Reserved */
1616  avio_wb32(pb, 0); /* Reserved */
1617  }
1618  avio_wb16(pb, track->enc->width); /* Video width */
1619  avio_wb16(pb, track->height); /* Video height */
1620  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1621  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1622  avio_wb32(pb, 0); /* Data size (= 0) */
1623  avio_wb16(pb, 1); /* Frame count (= 1) */
1624 
1625  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1626  find_compressor(compressor_name, 32, track);
1627  avio_w8(pb, strlen(compressor_name));
1628  avio_write(pb, compressor_name, 31);
1629 
1630  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1631  avio_wb16(pb, track->enc->bits_per_coded_sample);
1632  else
1633  avio_wb16(pb, 0x18); /* Reserved */
1634  avio_wb16(pb, 0xffff); /* Reserved */
1635  if (track->tag == MKTAG('m','p','4','v'))
1636  mov_write_esds_tag(pb, track);
1637  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1638  mov_write_d263_tag(pb);
1639  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1640  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1641  mov_write_extradata_tag(pb, track);
1642  avio_wb32(pb, 0);
1643  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1644  mov_write_avid_tag(pb, track);
1645  else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1646  mov_write_hvcc_tag(pb, track);
1647  else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1648  mov_write_avcc_tag(pb, track);
1649  if (track->mode == MODE_IPOD)
1651  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1652  mov_write_dvc1_tag(pb, track);
1653  else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1654  track->enc->codec_id == AV_CODEC_ID_VP6A) {
1655  /* Don't write any potential extradata here - the cropping
1656  * is signalled via the normal width/height fields. */
1657  } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1658  if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1659  mov_write_dpxe_tag(pb, track);
1660  } else if (track->vos_len > 0)
1661  mov_write_glbl_tag(pb, track);
1662 
1663  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1664  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1665  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1666  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1667  mov_write_fiel_tag(pb, track);
1668 
1669  if (mov->flags & FF_MOV_FLAG_WRITE_COLR)
1670  mov_write_colr_tag(pb, track);
1671 
1672  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1673  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1674  mov_write_pasp_tag(pb, track);
1675  }
1676 
1677  return update_size(pb, pos);
1678 }
1679 
1680 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1681 {
1682  int64_t pos = avio_tell(pb);
1683  avio_wb32(pb, 0); /* size */
1684  ffio_wfourcc(pb, "rtp ");
1685  avio_wb32(pb, 0); /* Reserved */
1686  avio_wb16(pb, 0); /* Reserved */
1687  avio_wb16(pb, 1); /* Data-reference index */
1688 
1689  avio_wb16(pb, 1); /* Hint track version */
1690  avio_wb16(pb, 1); /* Highest compatible version */
1691  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1692 
1693  avio_wb32(pb, 12); /* size */
1694  ffio_wfourcc(pb, "tims");
1695  avio_wb32(pb, track->timescale);
1696 
1697  return update_size(pb, pos);
1698 }
1699 
1700 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1701 {
1702  uint64_t str_size =strlen(reel_name);
1703  int64_t pos = avio_tell(pb);
1704 
1705  if (str_size >= UINT16_MAX){
1706  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1707  avio_wb16(pb, 0);
1708  return AVERROR(EINVAL);
1709  }
1710 
1711  avio_wb32(pb, 0); /* size */
1712  ffio_wfourcc(pb, "name"); /* Data format */
1713  avio_wb16(pb, str_size); /* string size */
1714  avio_wb16(pb, track->language); /* langcode */
1715  avio_write(pb, reel_name, str_size); /* reel name */
1716  return update_size(pb,pos);
1717 }
1718 
1719 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1720 {
1721  int64_t pos = avio_tell(pb);
1722 #if 1
1723  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1724  int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1725  AVDictionaryEntry *t = NULL;
1726 
1727  if (nb_frames > 255) {
1728  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1729  return AVERROR(EINVAL);
1730  }
1731 
1732  avio_wb32(pb, 0); /* size */
1733  ffio_wfourcc(pb, "tmcd"); /* Data format */
1734  avio_wb32(pb, 0); /* Reserved */
1735  avio_wb32(pb, 1); /* Data reference index */
1736  avio_wb32(pb, 0); /* Flags */
1737  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1738  avio_wb32(pb, track->timescale); /* Timescale */
1739  avio_wb32(pb, frame_duration); /* Frame duration */
1740  avio_w8(pb, nb_frames); /* Number of frames */
1741  avio_w8(pb, 0); /* Reserved */
1742 
1743  if (track->st)
1744  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1745 
1746  if (t && utf8len(t->value))
1747  mov_write_source_reference_tag(pb, track, t->value);
1748  else
1749  avio_wb16(pb, 0); /* zero size */
1750 #else
1751 
1752  avio_wb32(pb, 0); /* size */
1753  ffio_wfourcc(pb, "tmcd"); /* Data format */
1754  avio_wb32(pb, 0); /* Reserved */
1755  avio_wb32(pb, 1); /* Data reference index */
1756  if (track->enc->extradata_size)
1757  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1758 #endif
1759  return update_size(pb, pos);
1760 }
1761 
1763 {
1764  int64_t pos = avio_tell(pb);
1765  avio_wb32(pb, 0); /* size */
1766  ffio_wfourcc(pb, "stsd");
1767  avio_wb32(pb, 0); /* version & flags */
1768  avio_wb32(pb, 1); /* entry count */
1769  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1770  mov_write_video_tag(pb, mov, track);
1771  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1772  mov_write_audio_tag(pb, track);
1773  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1774  mov_write_subtitle_tag(pb, track);
1775  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1776  mov_write_rtp_tag(pb, track);
1777  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1778  mov_write_tmcd_tag(pb, track);
1779  return update_size(pb, pos);
1780 }
1781 
1782 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1783 {
1784  MOVStts *ctts_entries;
1785  uint32_t entries = 0;
1786  uint32_t atom_size;
1787  int i;
1788 
1789  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1790  if (!ctts_entries)
1791  return AVERROR(ENOMEM);
1792  ctts_entries[0].count = 1;
1793  ctts_entries[0].duration = track->cluster[0].cts;
1794  for (i = 1; i < track->entry; i++) {
1795  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1796  ctts_entries[entries].count++; /* compress */
1797  } else {
1798  entries++;
1799  ctts_entries[entries].duration = track->cluster[i].cts;
1800  ctts_entries[entries].count = 1;
1801  }
1802  }
1803  entries++; /* last one */
1804  atom_size = 16 + (entries * 8);
1805  avio_wb32(pb, atom_size); /* size */
1806  ffio_wfourcc(pb, "ctts");
1807  avio_wb32(pb, 0); /* version & flags */
1808  avio_wb32(pb, entries); /* entry count */
1809  for (i = 0; i < entries; i++) {
1810  avio_wb32(pb, ctts_entries[i].count);
1811  avio_wb32(pb, ctts_entries[i].duration);
1812  }
1813  av_free(ctts_entries);
1814  return atom_size;
1815 }
1816 
1817 /* Time to sample atom */
1818 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1819 {
1820  MOVStts *stts_entries;
1821  uint32_t entries = -1;
1822  uint32_t atom_size;
1823  int i;
1824 
1825  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1826  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1827  stts_entries[0].count = track->sample_count;
1828  stts_entries[0].duration = 1;
1829  entries = 1;
1830  } else {
1831  stts_entries = track->entry ?
1832  av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1833  NULL;
1834  for (i = 0; i < track->entry; i++) {
1835  int duration = get_cluster_duration(track, i);
1836  if (i && duration == stts_entries[entries].duration) {
1837  stts_entries[entries].count++; /* compress */
1838  } else {
1839  entries++;
1840  stts_entries[entries].duration = duration;
1841  stts_entries[entries].count = 1;
1842  }
1843  }
1844  entries++; /* last one */
1845  }
1846  atom_size = 16 + (entries * 8);
1847  avio_wb32(pb, atom_size); /* size */
1848  ffio_wfourcc(pb, "stts");
1849  avio_wb32(pb, 0); /* version & flags */
1850  avio_wb32(pb, entries); /* entry count */
1851  for (i = 0; i < entries; i++) {
1852  avio_wb32(pb, stts_entries[i].count);
1853  avio_wb32(pb, stts_entries[i].duration);
1854  }
1855  av_free(stts_entries);
1856  return atom_size;
1857 }
1858 
1860 {
1861  avio_wb32(pb, 28); /* size */
1862  ffio_wfourcc(pb, "dref");
1863  avio_wb32(pb, 0); /* version & flags */
1864  avio_wb32(pb, 1); /* entry count */
1865 
1866  avio_wb32(pb, 0xc); /* size */
1867  //FIXME add the alis and rsrc atom
1868  ffio_wfourcc(pb, "url ");
1869  avio_wb32(pb, 1); /* version & flags */
1870 
1871  return 28;
1872 }
1873 
1875 {
1876  int64_t pos = avio_tell(pb);
1877  int ret;
1878 
1879  avio_wb32(pb, 0); /* size */
1880  ffio_wfourcc(pb, "stbl");
1881  mov_write_stsd_tag(pb, mov, track);
1882  mov_write_stts_tag(pb, track);
1883  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1884  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1885  track->has_keyframes && track->has_keyframes < track->entry)
1886  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1887  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1889  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1890  track->flags & MOV_TRACK_CTTS && track->entry) {
1891 
1892  if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1893  return ret;
1894  }
1895  mov_write_stsc_tag(pb, track);
1896  mov_write_stsz_tag(pb, track);
1897  mov_write_stco_tag(pb, track);
1898  return update_size(pb, pos);
1899 }
1900 
1902 {
1903  int64_t pos = avio_tell(pb);
1904  avio_wb32(pb, 0); /* size */
1905  ffio_wfourcc(pb, "dinf");
1906  mov_write_dref_tag(pb);
1907  return update_size(pb, pos);
1908 }
1909 
1911 {
1912  avio_wb32(pb, 12);
1913  ffio_wfourcc(pb, "nmhd");
1914  avio_wb32(pb, 0);
1915  return 12;
1916 }
1917 
1918 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1919 {
1920  int64_t pos = avio_tell(pb);
1921  const char *font = "Lucida Grande";
1922  avio_wb32(pb, 0); /* size */
1923  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1924  avio_wb32(pb, 0); /* version & flags */
1925  avio_wb16(pb, 0); /* text font */
1926  avio_wb16(pb, 0); /* text face */
1927  avio_wb16(pb, 12); /* text size */
1928  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1929  avio_wb16(pb, 0x0000); /* text color (red) */
1930  avio_wb16(pb, 0x0000); /* text color (green) */
1931  avio_wb16(pb, 0x0000); /* text color (blue) */
1932  avio_wb16(pb, 0xffff); /* background color (red) */
1933  avio_wb16(pb, 0xffff); /* background color (green) */
1934  avio_wb16(pb, 0xffff); /* background color (blue) */
1935  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1936  avio_write(pb, font, strlen(font)); /* font name */
1937  return update_size(pb, pos);
1938 }
1939 
1940 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1941 {
1942  int64_t pos = avio_tell(pb);
1943  avio_wb32(pb, 0); /* size */
1944  ffio_wfourcc(pb, "gmhd");
1945  avio_wb32(pb, 0x18); /* gmin size */
1946  ffio_wfourcc(pb, "gmin");/* generic media info */
1947  avio_wb32(pb, 0); /* version & flags */
1948  avio_wb16(pb, 0x40); /* graphics mode = */
1949  avio_wb16(pb, 0x8000); /* opColor (r?) */
1950  avio_wb16(pb, 0x8000); /* opColor (g?) */
1951  avio_wb16(pb, 0x8000); /* opColor (b?) */
1952  avio_wb16(pb, 0); /* balance */
1953  avio_wb16(pb, 0); /* reserved */
1954 
1955  /*
1956  * This special text atom is required for
1957  * Apple Quicktime chapters. The contents
1958  * don't appear to be documented, so the
1959  * bytes are copied verbatim.
1960  */
1961  if (track->tag != MKTAG('c','6','0','8')) {
1962  avio_wb32(pb, 0x2C); /* size */
1963  ffio_wfourcc(pb, "text");
1964  avio_wb16(pb, 0x01);
1965  avio_wb32(pb, 0x00);
1966  avio_wb32(pb, 0x00);
1967  avio_wb32(pb, 0x00);
1968  avio_wb32(pb, 0x01);
1969  avio_wb32(pb, 0x00);
1970  avio_wb32(pb, 0x00);
1971  avio_wb32(pb, 0x00);
1972  avio_wb32(pb, 0x00004000);
1973  avio_wb16(pb, 0x0000);
1974  }
1975 
1976  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1977  int64_t tmcd_pos = avio_tell(pb);
1978  avio_wb32(pb, 0); /* size */
1979  ffio_wfourcc(pb, "tmcd");
1980  mov_write_tcmi_tag(pb, track);
1981  update_size(pb, tmcd_pos);
1982  }
1983  return update_size(pb, pos);
1984 }
1985 
1987 {
1988  avio_wb32(pb, 16); /* size */
1989  ffio_wfourcc(pb, "smhd");
1990  avio_wb32(pb, 0); /* version & flags */
1991  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1992  avio_wb16(pb, 0); /* reserved */
1993  return 16;
1994 }
1995 
1997 {
1998  avio_wb32(pb, 0x14); /* size (always 0x14) */
1999  ffio_wfourcc(pb, "vmhd");
2000  avio_wb32(pb, 0x01); /* version & flags */
2001  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2002  return 0x14;
2003 }
2004 
2005 static int is_clcp_track(MOVTrack *track)
2006 {
2007  return track->tag == MKTAG('c','7','0','8') ||
2008  track->tag == MKTAG('c','6','0','8');
2009 }
2010 
2011 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2012 {
2013  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2014  int64_t pos = avio_tell(pb);
2015 
2016  hdlr = "dhlr";
2017  hdlr_type = "url ";
2018  descr = "DataHandler";
2019 
2020  if (track) {
2021  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2022  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2023  hdlr_type = "vide";
2024  descr = "VideoHandler";
2025  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2026  hdlr_type = "soun";
2027  descr = "SoundHandler";
2028  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2029  if (is_clcp_track(track)) {
2030  hdlr_type = "clcp";
2031  descr = "ClosedCaptionHandler";
2032  } else {
2033  if (track->tag == MKTAG('t','x','3','g')) {
2034  hdlr_type = "sbtl";
2035  } else if (track->tag == MKTAG('m','p','4','s')) {
2036  hdlr_type = "subp";
2037  } else {
2038  hdlr_type = "text";
2039  }
2040  descr = "SubtitleHandler";
2041  }
2042  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2043  hdlr_type = "hint";
2044  descr = "HintHandler";
2045  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2046  hdlr_type = "tmcd";
2047  descr = "TimeCodeHandler";
2048  } else {
2049  char tag_buf[32];
2050  av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2051  track->enc->codec_tag);
2052 
2053  av_log(track->enc, AV_LOG_WARNING,
2054  "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2055  tag_buf, track->enc->codec_tag);
2056  }
2057  if (track->st) {
2058  // hdlr.name is used by some players to identify the content title
2059  // of the track. So if an alternate handler description is
2060  // specified, use it.
2061  AVDictionaryEntry *t;
2062  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2063  if (t && utf8len(t->value))
2064  descr = t->value;
2065  }
2066  }
2067 
2068  avio_wb32(pb, 0); /* size */
2069  ffio_wfourcc(pb, "hdlr");
2070  avio_wb32(pb, 0); /* Version & flags */
2071  avio_write(pb, hdlr, 4); /* handler */
2072  ffio_wfourcc(pb, hdlr_type); /* handler type */
2073  avio_wb32(pb, 0); /* reserved */
2074  avio_wb32(pb, 0); /* reserved */
2075  avio_wb32(pb, 0); /* reserved */
2076  if (!track || track->mode == MODE_MOV)
2077  avio_w8(pb, strlen(descr)); /* pascal string */
2078  avio_write(pb, descr, strlen(descr)); /* handler description */
2079  if (track && track->mode != MODE_MOV)
2080  avio_w8(pb, 0); /* c string */
2081  return update_size(pb, pos);
2082 }
2083 
2085 {
2086  /* This atom must be present, but leaving the values at zero
2087  * seems harmless. */
2088  avio_wb32(pb, 28); /* size */
2089  ffio_wfourcc(pb, "hmhd");
2090  avio_wb32(pb, 0); /* version, flags */
2091  avio_wb16(pb, 0); /* maxPDUsize */
2092  avio_wb16(pb, 0); /* avgPDUsize */
2093  avio_wb32(pb, 0); /* maxbitrate */
2094  avio_wb32(pb, 0); /* avgbitrate */
2095  avio_wb32(pb, 0); /* reserved */
2096  return 28;
2097 }
2098 
2100 {
2101  int64_t pos = avio_tell(pb);
2102  int ret;
2103 
2104  avio_wb32(pb, 0); /* size */
2105  ffio_wfourcc(pb, "minf");
2106  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2107  mov_write_vmhd_tag(pb);
2108  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2109  mov_write_smhd_tag(pb);
2110  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2111  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2112  mov_write_gmhd_tag(pb, track);
2113  } else {
2114  mov_write_nmhd_tag(pb);
2115  }
2116  } else if (track->tag == MKTAG('r','t','p',' ')) {
2117  mov_write_hmhd_tag(pb);
2118  } else if (track->tag == MKTAG('t','m','c','d')) {
2119  mov_write_gmhd_tag(pb, track);
2120  }
2121  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2122  mov_write_hdlr_tag(pb, NULL);
2123  mov_write_dinf_tag(pb);
2124  if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2125  return ret;
2126  return update_size(pb, pos);
2127 }
2128 
2130  MOVTrack *track)
2131 {
2132  int version = track->track_duration < INT32_MAX ? 0 : 1;
2133 
2134  if (track->mode == MODE_ISM)
2135  version = 1;
2136 
2137  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2138  ffio_wfourcc(pb, "mdhd");
2139  avio_w8(pb, version);
2140  avio_wb24(pb, 0); /* flags */
2141  if (version == 1) {
2142  avio_wb64(pb, track->time);
2143  avio_wb64(pb, track->time);
2144  } else {
2145  avio_wb32(pb, track->time); /* creation time */
2146  avio_wb32(pb, track->time); /* modification time */
2147  }
2148  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2149  if (!track->entry && mov->mode == MODE_ISM)
2150  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2151  else if (!track->entry)
2152  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2153  else
2154  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2155  avio_wb16(pb, track->language); /* language */
2156  avio_wb16(pb, 0); /* reserved (quality) */
2157 
2158  if (version != 0 && track->mode == MODE_MOV) {
2159  av_log(NULL, AV_LOG_ERROR,
2160  "FATAL error, file duration too long for timebase, this file will not be\n"
2161  "playable with quicktime. Choose a different timebase or a different\n"
2162  "container format\n");
2163  }
2164 
2165  return 32;
2166 }
2167 
2169  MOVTrack *track)
2170 {
2171  int64_t pos = avio_tell(pb);
2172  int ret;
2173 
2174  avio_wb32(pb, 0); /* size */
2175  ffio_wfourcc(pb, "mdia");
2176  mov_write_mdhd_tag(pb, mov, track);
2177  mov_write_hdlr_tag(pb, track);
2178  if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2179  return ret;
2180  return update_size(pb, pos);
2181 }
2182 
2183 /* transformation matrix
2184  |a b u|
2185  |c d v|
2186  |tx ty w| */
2187 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2188  int16_t d, int16_t tx, int16_t ty)
2189 {
2190  avio_wb32(pb, a << 16); /* 16.16 format */
2191  avio_wb32(pb, b << 16); /* 16.16 format */
2192  avio_wb32(pb, 0); /* u in 2.30 format */
2193  avio_wb32(pb, c << 16); /* 16.16 format */
2194  avio_wb32(pb, d << 16); /* 16.16 format */
2195  avio_wb32(pb, 0); /* v in 2.30 format */
2196  avio_wb32(pb, tx << 16); /* 16.16 format */
2197  avio_wb32(pb, ty << 16); /* 16.16 format */
2198  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2199 }
2200 
2202  MOVTrack *track, AVStream *st)
2203 {
2205  track->timescale, AV_ROUND_UP);
2206  int version = duration < INT32_MAX ? 0 : 1;
2208  int rotation = 0;
2209  int group = 0;
2210 
2211 
2212  if (st) {
2213  if (mov->per_stream_grouping)
2214  group = st->index;
2215  else
2216  group = st->codec->codec_type;
2217  }
2218 
2219  if (track->flags & MOV_TRACK_ENABLED)
2220  flags |= MOV_TKHD_FLAG_ENABLED;
2221 
2222  if (track->mode == MODE_ISM)
2223  version = 1;
2224 
2225  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2226  ffio_wfourcc(pb, "tkhd");
2227  avio_w8(pb, version);
2228  avio_wb24(pb, flags);
2229  if (version == 1) {
2230  avio_wb64(pb, track->time);
2231  avio_wb64(pb, track->time);
2232  } else {
2233  avio_wb32(pb, track->time); /* creation time */
2234  avio_wb32(pb, track->time); /* modification time */
2235  }
2236  avio_wb32(pb, track->track_id); /* track-id */
2237  avio_wb32(pb, 0); /* reserved */
2238  if (!track->entry && mov->mode == MODE_ISM)
2239  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2240  else if (!track->entry)
2241  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2242  else
2243  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2244 
2245  avio_wb32(pb, 0); /* reserved */
2246  avio_wb32(pb, 0); /* reserved */
2247  avio_wb16(pb, 0); /* layer */
2248  avio_wb16(pb, group); /* alternate group) */
2249  /* Volume, only for audio */
2250  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2251  avio_wb16(pb, 0x0100);
2252  else
2253  avio_wb16(pb, 0);
2254  avio_wb16(pb, 0); /* reserved */
2255 
2256  /* Matrix structure */
2257  if (st && st->metadata) {
2258  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2259  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2260  }
2261  if (rotation == 90) {
2262  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2263  } else if (rotation == 180) {
2264  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2265  } else if (rotation == 270) {
2266  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2267  } else {
2268  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2269  }
2270  /* Track width and height, for visual only */
2271  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2272  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2273  if (track->mode == MODE_MOV) {
2274  avio_wb32(pb, track->enc->width << 16);
2275  avio_wb32(pb, track->height << 16);
2276  } else {
2277  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2278  if (!sample_aspect_ratio || track->height != track->enc->height)
2279  sample_aspect_ratio = 1;
2280  avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2281  avio_wb32(pb, track->height * 0x10000);
2282  }
2283  } else {
2284  avio_wb32(pb, 0);
2285  avio_wb32(pb, 0);
2286  }
2287  return 0x5c;
2288 }
2289 
2290 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2291 {
2293  track->enc->sample_aspect_ratio.den);
2294 
2295  int64_t pos = avio_tell(pb);
2296 
2297  avio_wb32(pb, 0); /* size */
2298  ffio_wfourcc(pb, "tapt");
2299 
2300  avio_wb32(pb, 20);
2301  ffio_wfourcc(pb, "clef");
2302  avio_wb32(pb, 0);
2303  avio_wb32(pb, width << 16);
2304  avio_wb32(pb, track->enc->height << 16);
2305 
2306  avio_wb32(pb, 20);
2307  ffio_wfourcc(pb, "prof");
2308  avio_wb32(pb, 0);
2309  avio_wb32(pb, width << 16);
2310  avio_wb32(pb, track->enc->height << 16);
2311 
2312  avio_wb32(pb, 20);
2313  ffio_wfourcc(pb, "enof");
2314  avio_wb32(pb, 0);
2315  avio_wb32(pb, track->enc->width << 16);
2316  avio_wb32(pb, track->enc->height << 16);
2317 
2318  return update_size(pb, pos);
2319 }
2320 
2321 // This box seems important for the psp playback ... without it the movie seems to hang
2323  MOVTrack *track)
2324 {
2326  track->timescale, AV_ROUND_UP);
2327  int version = duration < INT32_MAX ? 0 : 1;
2328  int entry_size, entry_count, size;
2329  int64_t delay, start_ct = track->start_cts;
2330  int64_t start_dts = track->start_dts;
2331 
2332  if (track->entry) {
2333  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2334 
2335  av_log(mov->fc, AV_LOG_DEBUG,
2336  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2337  track->cluster[0].dts, track->cluster[0].cts,
2338  start_dts, start_ct, track->track_id);
2339  start_dts = track->cluster[0].dts;
2340  start_ct = track->cluster[0].cts;
2341  }
2342  }
2343 
2344  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2345  track->timescale, AV_ROUND_DOWN);
2346  version |= delay < INT32_MAX ? 0 : 1;
2347 
2348  entry_size = (version == 1) ? 20 : 12;
2349  entry_count = 1 + (delay > 0);
2350  size = 24 + entry_count * entry_size;
2351 
2352  /* write the atom data */
2353  avio_wb32(pb, size);
2354  ffio_wfourcc(pb, "edts");
2355  avio_wb32(pb, size - 8);
2356  ffio_wfourcc(pb, "elst");
2357  avio_w8(pb, version);
2358  avio_wb24(pb, 0); /* flags */
2359 
2360  avio_wb32(pb, entry_count);
2361  if (delay > 0) { /* add an empty edit to delay presentation */
2362  /* In the positive delay case, the delay includes the cts
2363  * offset, and the second edit list entry below trims out
2364  * the same amount from the actual content. This makes sure
2365  * that the offsetted last sample is included in the edit
2366  * list duration as well. */
2367  if (version == 1) {
2368  avio_wb64(pb, delay);
2369  avio_wb64(pb, -1);
2370  } else {
2371  avio_wb32(pb, delay);
2372  avio_wb32(pb, -1);
2373  }
2374  avio_wb32(pb, 0x00010000);
2375  } else {
2376  /* Avoid accidentally ending up with start_ct = -1 which has got a
2377  * special meaning. Normally start_ct should end up positive or zero
2378  * here, but use FFMIN in case dts is a a small positive integer
2379  * rounded to 0 when represented in MOV_TIMESCALE units. */
2380  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2381  start_ct = -FFMIN(start_dts, 0);
2382  /* Note, this delay is calculated from the pts of the first sample,
2383  * ensuring that we don't reduce the duration for cases with
2384  * dts<0 pts=0. */
2385  duration += delay;
2386  }
2387 
2388  /* For fragmented files, we don't know the full length yet. Setting
2389  * duration to 0 allows us to only specify the offset, including
2390  * the rest of the content (from all future fragments) without specifying
2391  * an explicit duration. */
2392  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2393  duration = 0;
2394 
2395  /* duration */
2396  if (version == 1) {
2397  avio_wb64(pb, duration);
2398  avio_wb64(pb, start_ct);
2399  } else {
2400  avio_wb32(pb, duration);
2401  avio_wb32(pb, start_ct);
2402  }
2403  avio_wb32(pb, 0x00010000);
2404  return size;
2405 }
2406 
2407 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2408 {
2409  avio_wb32(pb, 20); // size
2410  ffio_wfourcc(pb, "tref");
2411  avio_wb32(pb, 12); // size (subatom)
2412  avio_wl32(pb, track->tref_tag);
2413  avio_wb32(pb, track->tref_id);
2414  return 20;
2415 }
2416 
2417 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2419 {
2420  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2421  ffio_wfourcc(pb, "uuid");
2422  ffio_wfourcc(pb, "USMT");
2423  avio_wb32(pb, 0x21d24fce);
2424  avio_wb32(pb, 0xbb88695c);
2425  avio_wb32(pb, 0xfac9c740);
2426  avio_wb32(pb, 0x1c); // another size here!
2427  ffio_wfourcc(pb, "MTDT");
2428  avio_wb32(pb, 0x00010012);
2429  avio_wb32(pb, 0x0a);
2430  avio_wb32(pb, 0x55c40000);
2431  avio_wb32(pb, 0x1);
2432  avio_wb32(pb, 0x0);
2433  return 0x34;
2434 }
2435 
2436 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2437 {
2438  AVFormatContext *ctx = track->rtp_ctx;
2439  char buf[1000] = "";
2440  int len;
2441 
2442  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2443  NULL, NULL, 0, 0, ctx);
2444  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2445  len = strlen(buf);
2446 
2447  avio_wb32(pb, len + 24);
2448  ffio_wfourcc(pb, "udta");
2449  avio_wb32(pb, len + 16);
2450  ffio_wfourcc(pb, "hnti");
2451  avio_wb32(pb, len + 8);
2452  ffio_wfourcc(pb, "sdp ");
2453  avio_write(pb, buf, len);
2454  return len + 24;
2455 }
2456 
2458  const char *tag, const char *str)
2459 {
2460  int64_t pos = avio_tell(pb);
2461  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2462  if (!t || !utf8len(t->value))
2463  return 0;
2464 
2465  avio_wb32(pb, 0); /* size */
2466  ffio_wfourcc(pb, tag); /* type */
2467  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2468  return update_size(pb, pos);
2469 }
2470 
2472  AVStream *st)
2473 {
2474  AVIOContext *pb_buf;
2475  int ret, size;
2476  uint8_t *buf;
2477 
2478  if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2479  return 0;
2480 
2481  ret = avio_open_dyn_buf(&pb_buf);
2482  if (ret < 0)
2483  return ret;
2484 
2485  if (mov->mode & MODE_MP4)
2486  mov_write_track_metadata(pb_buf, st, "name", "title");
2487 
2488  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2489  avio_wb32(pb, size + 8);
2490  ffio_wfourcc(pb, "udta");
2491  avio_write(pb, buf, size);
2492  }
2493  av_free(buf);
2494 
2495  return 0;
2496 }
2497 
2499  MOVTrack *track, AVStream *st)
2500 {
2501  int64_t pos = avio_tell(pb);
2502  int entry_backup = track->entry;
2503  int chunk_backup = track->chunkCount;
2504  int ret;
2505 
2506  /* If we want to have an empty moov, but some samples already have been
2507  * buffered (delay_moov), pretend that no samples have been written yet. */
2508  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2509  track->chunkCount = track->entry = 0;
2510 
2511  avio_wb32(pb, 0); /* size */
2512  ffio_wfourcc(pb, "trak");
2513  mov_write_tkhd_tag(pb, mov, track, st);
2514 
2515  av_assert2(mov->use_editlist >= 0);
2516 
2517  if (track->start_dts != AV_NOPTS_VALUE) {
2518  if (mov->use_editlist)
2519  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2520  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2521  av_log(mov->fc, AV_LOG_WARNING,
2522  "Not writing any edit list even though one would have been required\n");
2523  }
2524 
2525  if (track->tref_tag)
2526  mov_write_tref_tag(pb, track);
2527 
2528  if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2529  return ret;
2530  if (track->mode == MODE_PSP)
2531  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2532  if (track->tag == MKTAG('r','t','p',' '))
2533  mov_write_udta_sdp(pb, track);
2534  if (track->mode == MODE_MOV) {
2535  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2536  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2537  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2538  mov_write_tapt_tag(pb, track);
2539  }
2540  }
2541  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2542  mov_write_tapt_tag(pb, track);
2543  }
2544  }
2545  mov_write_track_udta_tag(pb, mov, st);
2546  track->entry = entry_backup;
2547  track->chunkCount = chunk_backup;
2548  return update_size(pb, pos);
2549 }
2550 
2552 {
2553  int i, has_audio = 0, has_video = 0;
2554  int64_t pos = avio_tell(pb);
2555  int audio_profile = mov->iods_audio_profile;
2556  int video_profile = mov->iods_video_profile;
2557  for (i = 0; i < mov->nb_streams; i++) {
2558  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2559  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2560  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2561  }
2562  }
2563  if (audio_profile < 0)
2564  audio_profile = 0xFF - has_audio;
2565  if (video_profile < 0)
2566  video_profile = 0xFF - has_video;
2567  avio_wb32(pb, 0x0); /* size */
2568  ffio_wfourcc(pb, "iods");
2569  avio_wb32(pb, 0); /* version & flags */
2570  put_descr(pb, 0x10, 7);
2571  avio_wb16(pb, 0x004f);
2572  avio_w8(pb, 0xff);
2573  avio_w8(pb, 0xff);
2574  avio_w8(pb, audio_profile);
2575  avio_w8(pb, video_profile);
2576  avio_w8(pb, 0xff);
2577  return update_size(pb, pos);
2578 }
2579 
2580 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2581 {
2582  avio_wb32(pb, 0x20); /* size */
2583  ffio_wfourcc(pb, "trex");
2584  avio_wb32(pb, 0); /* version & flags */
2585  avio_wb32(pb, track->track_id); /* track ID */
2586  avio_wb32(pb, 1); /* default sample description index */
2587  avio_wb32(pb, 0); /* default sample duration */
2588  avio_wb32(pb, 0); /* default sample size */
2589  avio_wb32(pb, 0); /* default sample flags */
2590  return 0;
2591 }
2592 
2594 {
2595  int64_t pos = avio_tell(pb);
2596  int i;
2597  avio_wb32(pb, 0x0); /* size */
2598  ffio_wfourcc(pb, "mvex");
2599  for (i = 0; i < mov->nb_streams; i++)
2600  mov_write_trex_tag(pb, &mov->tracks[i]);
2601  return update_size(pb, pos);
2602 }
2603 
2605 {
2606  int max_track_id = 1, i;
2607  int64_t max_track_len = 0;
2608  int version;
2609 
2610  for (i = 0; i < mov->nb_streams; i++) {
2611  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2612  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2613  MOV_TIMESCALE,
2614  mov->tracks[i].timescale,
2615  AV_ROUND_UP);
2616  if (max_track_len < max_track_len_temp)
2617  max_track_len = max_track_len_temp;
2618  if (max_track_id < mov->tracks[i].track_id)
2619  max_track_id = mov->tracks[i].track_id;
2620  }
2621  }
2622  /* If using delay_moov, make sure the output is the same as if no
2623  * samples had been written yet. */
2624  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2625  max_track_len = 0;
2626  max_track_id = 1;
2627  }
2628 
2629  version = max_track_len < UINT32_MAX ? 0 : 1;
2630  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2631 
2632  ffio_wfourcc(pb, "mvhd");
2633  avio_w8(pb, version);
2634  avio_wb24(pb, 0); /* flags */
2635  if (version == 1) {
2636  avio_wb64(pb, mov->time);
2637  avio_wb64(pb, mov->time);
2638  } else {
2639  avio_wb32(pb, mov->time); /* creation time */
2640  avio_wb32(pb, mov->time); /* modification time */
2641  }
2642  avio_wb32(pb, MOV_TIMESCALE);
2643  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2644 
2645  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2646  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2647  avio_wb16(pb, 0); /* reserved */
2648  avio_wb32(pb, 0); /* reserved */
2649  avio_wb32(pb, 0); /* reserved */
2650 
2651  /* Matrix structure */
2652  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2653 
2654  avio_wb32(pb, 0); /* reserved (preview time) */
2655  avio_wb32(pb, 0); /* reserved (preview duration) */
2656  avio_wb32(pb, 0); /* reserved (poster time) */
2657  avio_wb32(pb, 0); /* reserved (selection time) */
2658  avio_wb32(pb, 0); /* reserved (selection duration) */
2659  avio_wb32(pb, 0); /* reserved (current time) */
2660  avio_wb32(pb, max_track_id + 1); /* Next track id */
2661  return 0x6c;
2662 }
2663 
2665  AVFormatContext *s)
2666 {
2667  avio_wb32(pb, 33); /* size */
2668  ffio_wfourcc(pb, "hdlr");
2669  avio_wb32(pb, 0);
2670  avio_wb32(pb, 0);
2671  ffio_wfourcc(pb, "mdir");
2672  ffio_wfourcc(pb, "appl");
2673  avio_wb32(pb, 0);
2674  avio_wb32(pb, 0);
2675  avio_w8(pb, 0);
2676  return 33;
2677 }
2678 
2679 /* helper function to write a data tag with the specified string as data */
2680 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2681 {
2682  if (long_style) {
2683  int size = 16 + strlen(data);
2684  avio_wb32(pb, size); /* size */
2685  ffio_wfourcc(pb, "data");
2686  avio_wb32(pb, 1);
2687  avio_wb32(pb, 0);
2688  avio_write(pb, data, strlen(data));
2689  return size;
2690  } else {
2691  if (!lang)
2692  lang = ff_mov_iso639_to_lang("und", 1);
2693  avio_wb16(pb, strlen(data)); /* string length */
2694  avio_wb16(pb, lang);
2695  avio_write(pb, data, strlen(data));
2696  return strlen(data) + 4;
2697  }
2698 }
2699 
2700 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2701  const char *value, int lang, int long_style)
2702 {
2703  int size = 0;
2704  if (value && value[0]) {
2705  int64_t pos = avio_tell(pb);
2706  avio_wb32(pb, 0); /* size */
2707  ffio_wfourcc(pb, name);
2708  mov_write_string_data_tag(pb, value, lang, long_style);
2709  size = update_size(pb, pos);
2710  }
2711  return size;
2712 }
2713 
2715  const char *name, const char *tag,
2716  int long_style)
2717 {
2718  int l, lang = 0, len, len2;
2719  AVDictionaryEntry *t, *t2 = NULL;
2720  char tag2[16];
2721 
2722  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2723  return 0;
2724 
2725  len = strlen(t->key);
2726  snprintf(tag2, sizeof(tag2), "%s-", tag);
2727  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2728  len2 = strlen(t2->key);
2729  if (len2 == len + 4 && !strcmp(t->value, t2->value)
2730  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2731  lang = l;
2732  break;
2733  }
2734  }
2735  return mov_write_string_tag(pb, name, t->value, lang, long_style);
2736 }
2737 
2738 /* iTunes bpm number */
2740 {
2741  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2742  int size = 0, tmpo = t ? atoi(t->value) : 0;
2743  if (tmpo) {
2744  size = 26;
2745  avio_wb32(pb, size);
2746  ffio_wfourcc(pb, "tmpo");
2747  avio_wb32(pb, size-8); /* size */
2748  ffio_wfourcc(pb, "data");
2749  avio_wb32(pb, 0x15); //type specifier
2750  avio_wb32(pb, 0);
2751  avio_wb16(pb, tmpo); // data
2752  }
2753  return size;
2754 }
2755 
2756 /* iTunes track or disc number */
2758  AVFormatContext *s, int disc)
2759 {
2761  disc ? "disc" : "track",
2762  NULL, 0);
2763  int size = 0, track = t ? atoi(t->value) : 0;
2764  if (track) {
2765  int tracks = 0;
2766  char *slash = strchr(t->value, '/');
2767  if (slash)
2768  tracks = atoi(slash + 1);
2769  avio_wb32(pb, 32); /* size */
2770  ffio_wfourcc(pb, disc ? "disk" : "trkn");
2771  avio_wb32(pb, 24); /* size */
2772  ffio_wfourcc(pb, "data");
2773  avio_wb32(pb, 0); // 8 bytes empty
2774  avio_wb32(pb, 0);
2775  avio_wb16(pb, 0); // empty
2776  avio_wb16(pb, track); // track / disc number
2777  avio_wb16(pb, tracks); // total track / disc number
2778  avio_wb16(pb, 0); // empty
2779  size = 32;
2780  }
2781  return size;
2782 }
2783 
2785  const char *name, const char *tag,
2786  int len)
2787 {
2788  AVDictionaryEntry *t = NULL;
2789  uint8_t num;
2790  int size = 24 + len;
2791 
2792  if (len != 1 && len != 4)
2793  return -1;
2794 
2795  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2796  return 0;
2797  num = atoi(t->value);
2798 
2799  avio_wb32(pb, size);
2800  ffio_wfourcc(pb, name);
2801  avio_wb32(pb, size - 8);
2802  ffio_wfourcc(pb, "data");
2803  avio_wb32(pb, 0x15);
2804  avio_wb32(pb, 0);
2805  if (len==4) avio_wb32(pb, num);
2806  else avio_w8 (pb, num);
2807 
2808  return size;
2809 }
2810 
2811 /* iTunes meta data list */
2813  AVFormatContext *s)
2814 {
2815  int64_t pos = avio_tell(pb);
2816  avio_wb32(pb, 0); /* size */
2817  ffio_wfourcc(pb, "ilst");
2818  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2819  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2820  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2821  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2822  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2823  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2824  if (!mov->exact &&
2825  !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2826  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2827  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2828  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2829  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2830  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2831  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2832  mov_write_string_metadata(s, pb, "desc", "description",1);
2833  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2834  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2835  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2836  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2837  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2838  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2839  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2840  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2841  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2842  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2843  mov_write_trkn_tag(pb, mov, s, 0); // track number
2844  mov_write_trkn_tag(pb, mov, s, 1); // disc number
2845  mov_write_tmpo_tag(pb, s);
2846  return update_size(pb, pos);
2847 }
2848 
2849 /* iTunes meta data tag */
2851  AVFormatContext *s)
2852 {
2853  int size = 0;
2854  int64_t pos = avio_tell(pb);
2855  avio_wb32(pb, 0); /* size */
2856  ffio_wfourcc(pb, "meta");
2857  avio_wb32(pb, 0);
2858  mov_write_itunes_hdlr_tag(pb, mov, s);
2859  mov_write_ilst_tag(pb, mov, s);
2860  size = update_size(pb, pos);
2861  return size;
2862 }
2863 
2865  const char *name, const char *key)
2866 {
2867  int len;
2868  AVDictionaryEntry *t;
2869 
2870  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2871  return 0;
2872 
2873  len = strlen(t->value);
2874  if (len > 0) {
2875  int size = len + 8;
2876  avio_wb32(pb, size);
2877  ffio_wfourcc(pb, name);
2878  avio_write(pb, t->value, len);
2879  return size;
2880  }
2881  return 0;
2882 }
2883 
2884 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2885 {
2886  int val;
2887  while (*b) {
2888  GET_UTF8(val, *b++, return -1;)
2889  avio_wb16(pb, val);
2890  }
2891  avio_wb16(pb, 0x00);
2892  return 0;
2893 }
2894 
2895 static uint16_t language_code(const char *str)
2896 {
2897  return (((str[0] - 0x60) & 0x1F) << 10) +
2898  (((str[1] - 0x60) & 0x1F) << 5) +
2899  (( str[2] - 0x60) & 0x1F);
2900 }
2901 
2903  const char *tag, const char *str)
2904 {
2905  int64_t pos = avio_tell(pb);
2906  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2907  if (!t || !utf8len(t->value))
2908  return 0;
2909  avio_wb32(pb, 0); /* size */
2910  ffio_wfourcc(pb, tag); /* type */
2911  avio_wb32(pb, 0); /* version + flags */
2912  if (!strcmp(tag, "yrrc"))
2913  avio_wb16(pb, atoi(t->value));
2914  else {
2915  avio_wb16(pb, language_code("eng")); /* language */
2916  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2917  if (!strcmp(tag, "albm") &&
2918  (t = av_dict_get(s->metadata, "track", NULL, 0)))
2919  avio_w8(pb, atoi(t->value));
2920  }
2921  return update_size(pb, pos);
2922 }
2923 
2925 {
2926  int64_t pos = avio_tell(pb);
2927  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2928 
2929  avio_wb32(pb, 0); // size
2930  ffio_wfourcc(pb, "chpl");
2931  avio_wb32(pb, 0x01000000); // version + flags
2932  avio_wb32(pb, 0); // unknown
2933  avio_w8(pb, nb_chapters);
2934 
2935  for (i = 0; i < nb_chapters; i++) {
2936  AVChapter *c = s->chapters[i];
2937  AVDictionaryEntry *t;
2938  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2939 
2940  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2941  int len = FFMIN(strlen(t->value), 255);
2942  avio_w8(pb, len);
2943  avio_write(pb, t->value, len);
2944  } else
2945  avio_w8(pb, 0);
2946  }
2947  return update_size(pb, pos);
2948 }
2949 
2951  AVFormatContext *s)
2952 {
2953  AVIOContext *pb_buf;
2954  int ret, size;
2955  uint8_t *buf;
2956 
2957  ret = avio_open_dyn_buf(&pb_buf);
2958  if (ret < 0)
2959  return ret;
2960 
2961  if (mov->mode & MODE_3GP) {
2962  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2963  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2964  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2965  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2966  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2967  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2968  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2969  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2970  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2971  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2972  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2973  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2974  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2975  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2976  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2977  // currently ignored by mov.c
2978  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2979  // add support for libquicktime, this atom is also actually read by mov.c
2980  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2981  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2982  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2983  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2984  } else {
2985  /* iTunes meta data */
2986  mov_write_meta_tag(pb_buf, mov, s);
2987  }
2988 
2989  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2990  mov_write_chpl_tag(pb_buf, s);
2991 
2992  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2993  avio_wb32(pb, size + 8);
2994  ffio_wfourcc(pb, "udta");
2995  avio_write(pb, buf, size);
2996  }
2997  av_free(buf);
2998 
2999  return 0;
3000 }
3001 
3003  const char *str, const char *lang, int type)
3004 {
3005  int len = utf8len(str) + 1;
3006  if (len <= 0)
3007  return;
3008  avio_wb16(pb, len * 2 + 10); /* size */
3009  avio_wb32(pb, type); /* type */
3010  avio_wb16(pb, language_code(lang)); /* language */
3011  avio_wb16(pb, 0x01); /* ? */
3012  ascii_to_wc(pb, str);
3013 }
3014 
3016 {
3017  MOVMuxContext *mov = s->priv_data;
3018  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3019  int64_t pos, pos2;
3020 
3021  if (title) {
3022  pos = avio_tell(pb);
3023  avio_wb32(pb, 0); /* size placeholder*/
3024  ffio_wfourcc(pb, "uuid");
3025  ffio_wfourcc(pb, "USMT");
3026  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3027  avio_wb32(pb, 0xbb88695c);
3028  avio_wb32(pb, 0xfac9c740);
3029 
3030  pos2 = avio_tell(pb);
3031  avio_wb32(pb, 0); /* size placeholder*/
3032  ffio_wfourcc(pb, "MTDT");
3033  avio_wb16(pb, 4);
3034 
3035  // ?
3036  avio_wb16(pb, 0x0C); /* size */
3037  avio_wb32(pb, 0x0B); /* type */
3038  avio_wb16(pb, language_code("und")); /* language */
3039  avio_wb16(pb, 0x0); /* ? */
3040  avio_wb16(pb, 0x021C); /* data */
3041 
3042  if (!mov->exact)
3043  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3044  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3045  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3046 
3047  update_size(pb, pos2);
3048  return update_size(pb, pos);
3049  }
3050 
3051  return 0;
3052 }
3053 
3054 static void build_chunks(MOVTrack *trk)
3055 {
3056  int i;
3057  MOVIentry *chunk = &trk->cluster[0];
3058  uint64_t chunkSize = chunk->size;
3059  chunk->chunkNum = 1;
3060  if (trk->chunkCount)
3061  return;
3062  trk->chunkCount = 1;
3063  for (i = 1; i<trk->entry; i++){
3064  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3065  chunkSize + trk->cluster[i].size < (1<<20)){
3066  chunkSize += trk->cluster[i].size;
3067  chunk->samples_in_chunk += trk->cluster[i].entries;
3068  } else {
3069  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3070  chunk=&trk->cluster[i];
3071  chunkSize = chunk->size;
3072  trk->chunkCount++;
3073  }
3074  }
3075 }
3076 
3078  AVFormatContext *s)
3079 {
3080  int i;
3081  int64_t pos = avio_tell(pb);
3082  avio_wb32(pb, 0); /* size placeholder*/
3083  ffio_wfourcc(pb, "moov");
3084 
3085  for (i = 0; i < mov->nb_streams; i++) {
3086  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3087  continue;
3088 
3089  mov->tracks[i].time = mov->time;
3090  mov->tracks[i].track_id = i + 1;
3091 
3092  if (mov->tracks[i].entry)
3093  build_chunks(&mov->tracks[i]);
3094  }
3095 
3096  if (mov->chapter_track)
3097  for (i = 0; i < s->nb_streams; i++) {
3098  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3099  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3100  }
3101  for (i = 0; i < mov->nb_streams; i++) {
3102  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3103  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3104  mov->tracks[i].tref_id =
3105  mov->tracks[mov->tracks[i].src_track].track_id;
3106  }
3107  }
3108  for (i = 0; i < mov->nb_streams; i++) {
3109  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3110  int src_trk = mov->tracks[i].src_track;
3111  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3112  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3113  //src_trk may have a different timescale than the tmcd track
3114  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3115  mov->tracks[i].timescale,
3116  mov->tracks[src_trk].timescale);
3117  }
3118  }
3119 
3120  mov_write_mvhd_tag(pb, mov);
3121  if (mov->mode != MODE_MOV && !mov->iods_skip)
3122  mov_write_iods_tag(pb, mov);
3123  for (i = 0; i < mov->nb_streams; i++) {
3124  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3125  int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3126  if (ret < 0)
3127  return ret;
3128  }
3129  }
3130  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3131  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3132 
3133  if (mov->mode == MODE_PSP)
3134  mov_write_uuidusmt_tag(pb, s);
3135  else
3136  mov_write_udta_tag(pb, mov, s);
3137 
3138  return update_size(pb, pos);
3139 }
3140 
3141 static void param_write_int(AVIOContext *pb, const char *name, int value)
3142 {
3143  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3144 }
3145 
3146 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3147 {
3148  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3149 }
3150 
3151 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3152 {
3153  char buf[150];
3154  len = FFMIN(sizeof(buf) / 2 - 1, len);
3155  ff_data_to_hex(buf, value, len, 0);
3156  buf[2 * len] = '\0';
3157  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3158 }
3159 
3161 {
3162  int64_t pos = avio_tell(pb);
3163  int i;
3164  static const uint8_t uuid[] = {
3165  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3166  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3167  };
3168 
3169  avio_wb32(pb, 0);
3170  ffio_wfourcc(pb, "uuid");
3171  avio_write(pb, uuid, sizeof(uuid));
3172  avio_wb32(pb, 0);
3173 
3174  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3175  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3176  avio_printf(pb, "<head>\n");
3177  if (!mov->exact)
3178  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3180  avio_printf(pb, "</head>\n");
3181  avio_printf(pb, "<body>\n");
3182  avio_printf(pb, "<switch>\n");
3183  for (i = 0; i < mov->nb_streams; i++) {
3184  MOVTrack *track = &mov->tracks[i];
3185  const char *type;
3186  /* track->track_id is initialized in write_moov, and thus isn't known
3187  * here yet */
3188  int track_id = i + 1;
3189 
3190  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3191  type = "video";
3192  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3193  type = "audio";
3194  } else {
3195  continue;
3196  }
3197  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3198  track->enc->bit_rate);
3199  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3200  param_write_int(pb, "trackID", track_id);
3201  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3202  if (track->enc->codec_id == AV_CODEC_ID_H264) {
3203  uint8_t *ptr;
3204  int size = track->enc->extradata_size;
3205  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3206  &size)) {
3207  param_write_hex(pb, "CodecPrivateData",
3208  ptr ? ptr : track->enc->extradata,
3209  size);
3210  av_free(ptr);
3211  }
3212  param_write_string(pb, "FourCC", "H264");
3213  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3214  param_write_string(pb, "FourCC", "WVC1");
3215  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3216  track->enc->extradata_size);
3217  }
3218  param_write_int(pb, "MaxWidth", track->enc->width);
3219  param_write_int(pb, "MaxHeight", track->enc->height);
3220  param_write_int(pb, "DisplayWidth", track->enc->width);
3221  param_write_int(pb, "DisplayHeight", track->enc->height);
3222  } else {
3223  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3224  param_write_string(pb, "FourCC", "AACL");
3225  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3226  param_write_string(pb, "FourCC", "WMAP");
3227  }
3228  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3229  track->enc->extradata_size);
3231  track->enc->codec_id));
3232  param_write_int(pb, "Channels", track->enc->channels);
3233  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3234  param_write_int(pb, "BitsPerSample", 16);
3235  param_write_int(pb, "PacketSize", track->enc->block_align ?
3236  track->enc->block_align : 4);
3237  }
3238  avio_printf(pb, "</%s>\n", type);
3239  }
3240  avio_printf(pb, "</switch>\n");
3241  avio_printf(pb, "</body>\n");
3242  avio_printf(pb, "</smil>\n");
3243 
3244  return update_size(pb, pos);
3245 }
3246 
3248 {
3249  avio_wb32(pb, 16);
3250  ffio_wfourcc(pb, "mfhd");
3251  avio_wb32(pb, 0);
3252  avio_wb32(pb, mov->fragments);
3253  return 0;
3254 }
3255 
3257  MOVTrack *track, int64_t moof_offset)
3258 {
3259  int64_t pos = avio_tell(pb);
3262  if (!track->entry) {
3263  flags |= MOV_TFHD_DURATION_IS_EMPTY;
3264  } else {
3265  flags |= MOV_TFHD_DEFAULT_FLAGS;
3266  }
3268  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3269  if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3270  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3272  }
3273 
3274  /* Don't set a default sample size, the silverlight player refuses
3275  * to play files with that set. Don't set a default sample duration,
3276  * WMP freaks out if it is set. Don't set a base data offset, PIFF
3277  * file format says it MUST NOT be set. */
3278  if (track->mode == MODE_ISM)
3281 
3282  avio_wb32(pb, 0); /* size placeholder */
3283  ffio_wfourcc(pb, "tfhd");
3284  avio_w8(pb, 0); /* version */
3285  avio_wb24(pb, flags);
3286 
3287  avio_wb32(pb, track->track_id); /* track-id */
3288  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3289  avio_wb64(pb, moof_offset);
3290  if (flags & MOV_TFHD_DEFAULT_DURATION) {
3291  track->default_duration = get_cluster_duration(track, 0);
3292  avio_wb32(pb, track->default_duration);
3293  }
3294  if (flags & MOV_TFHD_DEFAULT_SIZE) {
3295  track->default_size = track->entry ? track->cluster[0].size : 1;
3296  avio_wb32(pb, track->default_size);
3297  } else
3298  track->default_size = -1;
3299 
3300  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3301  track->default_sample_flags =
3302  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3305  avio_wb32(pb, track->default_sample_flags);
3306  }
3307 
3308  return update_size(pb, pos);
3309 }
3310 
3311 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3312 {
3315 }
3316 
3318  MOVTrack *track, int moof_size)
3319 {
3320  int64_t pos = avio_tell(pb);
3321  uint32_t flags = MOV_TRUN_DATA_OFFSET;
3322  int i;
3323 
3324  for (i = 0; i < track->entry; i++) {
3325  if (get_cluster_duration(track, i) != track->default_duration)
3326  flags |= MOV_TRUN_SAMPLE_DURATION;
3327  if (track->cluster[i].size != track->default_size)
3328  flags |= MOV_TRUN_SAMPLE_SIZE;
3329  if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3330  flags |= MOV_TRUN_SAMPLE_FLAGS;
3331  }
3332  if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3333  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3334  if (track->flags & MOV_TRACK_CTTS)
3335  flags |= MOV_TRUN_SAMPLE_CTS;
3336 
3337  avio_wb32(pb, 0); /* size placeholder */
3338  ffio_wfourcc(pb, "trun");
3339  avio_w8(pb, 0); /* version */
3340  avio_wb24(pb, flags);
3341 
3342  avio_wb32(pb, track->entry); /* sample count */
3343  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3345  !mov->first_trun)
3346  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3347  else
3348  avio_wb32(pb, moof_size + 8 + track->data_offset +
3349  track->cluster[0].pos); /* data offset */
3350  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3351  avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3352 
3353  for (i = 0; i < track->entry; i++) {
3354  if (flags & MOV_TRUN_SAMPLE_DURATION)
3355  avio_wb32(pb, get_cluster_duration(track, i));
3356  if (flags & MOV_TRUN_SAMPLE_SIZE)
3357  avio_wb32(pb, track->cluster[i].size);
3358  if (flags & MOV_TRUN_SAMPLE_FLAGS)
3359  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3360  if (flags & MOV_TRUN_SAMPLE_CTS)
3361  avio_wb32(pb, track->cluster[i].cts);
3362  }
3363 
3364  mov->first_trun = 0;
3365  return update_size(pb, pos);
3366 }
3367 
3368 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3369 {
3370  int64_t pos = avio_tell(pb);
3371  static const uint8_t uuid[] = {
3372  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3373  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3374  };
3375 
3376  avio_wb32(pb, 0); /* size placeholder */
3377  ffio_wfourcc(pb, "uuid");
3378  avio_write(pb, uuid, sizeof(uuid));
3379  avio_w8(pb, 1);
3380  avio_wb24(pb, 0);
3381  avio_wb64(pb, track->frag_start);
3382  avio_wb64(pb, track->start_dts + track->track_duration -
3383  track->cluster[0].dts);
3384 
3385  return update_size(pb, pos);
3386 }
3387 
3389  MOVTrack *track, int entry)
3390 {
3391  int n = track->nb_frag_info - 1 - entry, i;
3392  int size = 8 + 16 + 4 + 1 + 16*n;
3393  static const uint8_t uuid[] = {
3394  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3395  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3396  };
3397 
3398  if (entry < 0)
3399  return 0;
3400 
3401  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3402  avio_wb32(pb, size);
3403  ffio_wfourcc(pb, "uuid");
3404  avio_write(pb, uuid, sizeof(uuid));
3405  avio_w8(pb, 1);
3406  avio_wb24(pb, 0);
3407  avio_w8(pb, n);
3408  for (i = 0; i < n; i++) {
3409  int index = entry + 1 + i;
3410  avio_wb64(pb, track->frag_info[index].time);
3411  avio_wb64(pb, track->frag_info[index].duration);
3412  }
3413  if (n < mov->ism_lookahead) {
3414  int free_size = 16 * (mov->ism_lookahead - n);
3415  avio_wb32(pb, free_size);
3416  ffio_wfourcc(pb, "free");
3417  ffio_fill(pb, 0, free_size - 8);
3418  }
3419 
3420  return 0;
3421 }
3422 
3424  MOVTrack *track)
3425 {
3426  int64_t pos = avio_tell(pb);
3427  int i;
3428  for (i = 0; i < mov->ism_lookahead; i++) {
3429  /* Update the tfrf tag for the last ism_lookahead fragments,
3430  * nb_frag_info - 1 is the next fragment to be written. */
3431  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3432  }
3433  avio_seek(pb, pos, SEEK_SET);
3434  return 0;
3435 }
3436 
3437 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3438  int size)
3439 {
3440  int i;
3441  for (i = 0; i < mov->nb_streams; i++) {
3442  MOVTrack *track = &mov->tracks[i];
3443  MOVFragmentInfo *info;
3444  if ((tracks >= 0 && i != tracks) || !track->entry)
3445  continue;
3446  track->nb_frag_info++;
3447  if (track->nb_frag_info >= track->frag_info_capacity) {
3448  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3449  if (av_reallocp_array(&track->frag_info,
3450  new_capacity,
3451  sizeof(*track->frag_info)))
3452  return AVERROR(ENOMEM);
3453  track->frag_info_capacity = new_capacity;
3454  }
3455  info = &track->frag_info[track->nb_frag_info - 1];
3456  info->offset = avio_tell(pb);
3457  info->size = size;
3458  // Try to recreate the original pts for the first packet
3459  // from the fields we have stored
3460  info->time = track->start_dts + track->frag_start +
3461  track->cluster[0].cts;
3462  // If the pts is less than zero, we will have trimmed
3463  // away parts of the media track using an edit list,
3464  // and the corresponding start presentation time is zero.
3465  if (info->time < 0)
3466  info->time = 0;
3467  info->duration = track->start_dts + track->track_duration -
3468  track->cluster[0].dts;
3469  info->tfrf_offset = 0;
3470  mov_write_tfrf_tags(pb, mov, track);
3471  }
3472  return 0;
3473 }
3474 
3475 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3476 {
3477  int64_t pos = avio_tell(pb);
3478 
3479  avio_wb32(pb, 0); /* size */
3480  ffio_wfourcc(pb, "tfdt");
3481  avio_w8(pb, 1); /* version */
3482  avio_wb24(pb, 0);
3483  avio_wb64(pb, track->frag_start);
3484  return update_size(pb, pos);
3485 }
3486 
3488  MOVTrack *track, int64_t moof_offset,
3489  int moof_size)
3490 {
3491  int64_t pos = avio_tell(pb);
3492  avio_wb32(pb, 0); /* size placeholder */
3493  ffio_wfourcc(pb, "traf");
3494 
3495  mov_write_tfhd_tag(pb, mov, track, moof_offset);
3496  if (mov->mode != MODE_ISM)
3497  mov_write_tfdt_tag(pb, track);
3498  mov_write_trun_tag(pb, mov, track, moof_size);
3499  if (mov->mode == MODE_ISM) {
3500  mov_write_tfxd_tag(pb, track);
3501 
3502  if (mov->ism_lookahead) {
3503  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3504 
3505  if (track->nb_frag_info > 0) {
3506  MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3507  if (!info->tfrf_offset)
3508  info->tfrf_offset = avio_tell(pb);
3509  }
3510  avio_wb32(pb, 8 + size);
3511  ffio_wfourcc(pb, "free");
3512  for (i = 0; i < size; i++)
3513  avio_w8(pb, 0);
3514  }
3515  }
3516 
3517  return update_size(pb, pos);
3518 }
3519 
3521  int tracks, int moof_size)
3522 {
3523  int64_t pos = avio_tell(pb);
3524  int i;
3525 
3526  avio_wb32(pb, 0); /* size placeholder */
3527  ffio_wfourcc(pb, "moof");
3528  mov->first_trun = 1;
3529 
3530  mov_write_mfhd_tag(pb, mov);
3531  for (i = 0; i < mov->nb_streams; i++) {
3532  MOVTrack *track = &mov->tracks[i];
3533  if (tracks >= 0 && i != tracks)
3534  continue;
3535  if (!track->entry)
3536  continue;
3537  mov_write_traf_tag(pb, mov, track, pos, moof_size);
3538  }
3539 
3540  return update_size(pb, pos);
3541 }
3542 
3544  MOVTrack *track, int ref_size, int total_sidx_size)
3545 {
3546  int64_t pos = avio_tell(pb), offset_pos, end_pos;
3547  int64_t presentation_time, duration, offset;
3548  int starts_with_SAP, i, entries;
3549 
3550  if (track->entry) {
3551  entries = 1;
3552  presentation_time = track->start_dts + track->frag_start +
3553  track->cluster[0].cts;
3554  duration = track->start_dts + track->track_duration -
3555  track->cluster[0].dts;
3556  starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3557  } else {
3558  entries = track->nb_frag_info;
3559  presentation_time = track->frag_info[0].time;
3560  }
3561 
3562  // pts<0 should be cut away using edts
3563  if (presentation_time < 0)
3564  presentation_time = 0;
3565 
3566  avio_wb32(pb, 0); /* size */
3567  ffio_wfourcc(pb, "sidx");
3568  avio_w8(pb, 1); /* version */
3569  avio_wb24(pb, 0);
3570  avio_wb32(pb, track->track_id); /* reference_ID */
3571  avio_wb32(pb, track->timescale); /* timescale */
3572  avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3573  offset_pos = avio_tell(pb);
3574  avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3575  avio_wb16(pb, 0); /* reserved */
3576 
3577  avio_wb16(pb, entries); /* reference_count */
3578  for (i = 0; i < entries; i++) {
3579  if (!track->entry) {
3580  if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3581  av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3582  }
3583  duration = track->frag_info[i].duration;
3584  ref_size = track->frag_info[i].size;
3585  starts_with_SAP = 1;
3586  }
3587  avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3588  avio_wb32(pb, duration); /* subsegment_duration */
3589  avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3590  }
3591 
3592  end_pos = avio_tell(pb);
3593  offset = pos + total_sidx_size - end_pos;
3594  avio_seek(pb, offset_pos, SEEK_SET);
3595  avio_wb64(pb, offset);
3596  avio_seek(pb, end_pos, SEEK_SET);
3597  return update_size(pb, pos);
3598 }
3599 
3601  int tracks, int ref_size)
3602 {
3603  int i, round, ret;
3604  AVIOContext *avio_buf;
3605  int total_size = 0;
3606  for (round = 0; round < 2; round++) {
3607  // First run one round to calculate the total size of all
3608  // sidx atoms.
3609  // This would be much simpler if we'd only write one sidx
3610  // atom, for the first track in the moof.
3611  if (round == 0) {
3612  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3613  return ret;
3614  } else {
3615  avio_buf = pb;
3616  }
3617  for (i = 0; i < mov->nb_streams; i++) {
3618  MOVTrack *track = &mov->tracks[i];
3619  if (tracks >= 0 && i != tracks)
3620  continue;
3621  // When writing a sidx for the full file, entry is 0, but
3622  // we want to include all tracks. ref_size is 0 in this case,
3623  // since we read it from frag_info instead.
3624  if (!track->entry && ref_size > 0)
3625  continue;
3626  total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3627  total_size);
3628  }
3629  if (round == 0)
3630  total_size = ffio_close_null_buf(avio_buf);
3631  }
3632  return 0;
3633 }
3634 
3635 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3636  int64_t mdat_size)
3637 {
3638  AVIOContext *avio_buf;
3639  int ret, moof_size;
3640 
3641  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3642  return ret;
3643  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3644  moof_size = ffio_close_null_buf(avio_buf);
3645 
3646  if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
3647  mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3648 
3649  if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3650  return ret;
3651 
3652  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3653 }
3654 
3655 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3656 {
3657  int64_t pos = avio_tell(pb);
3658  int i;
3659 
3660  avio_wb32(pb, 0); /* size placeholder */
3661  ffio_wfourcc(pb, "tfra");
3662  avio_w8(pb, 1); /* version */
3663  avio_wb24(pb, 0);
3664 
3665  avio_wb32(pb, track->track_id);
3666  avio_wb32(pb, 0); /* length of traf/trun/sample num */
3667  avio_wb32(pb, track->nb_frag_info);
3668  for (i = 0; i < track->nb_frag_info; i++) {
3669  avio_wb64(pb, track->frag_info[i].time);
3670  avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3671  avio_w8(pb, 1); /* traf number */
3672  avio_w8(pb, 1); /* trun number */
3673  avio_w8(pb, 1); /* sample number */
3674  }
3675 
3676  return update_size(pb, pos);
3677 }
3678 
3680 {
3681  int64_t pos = avio_tell(pb);
3682  int i;
3683 
3684  avio_wb32(pb, 0); /* size placeholder */
3685  ffio_wfourcc(pb, "mfra");
3686  /* An empty mfra atom is enough to indicate to the publishing point that
3687  * the stream has ended. */
3688  if (mov->flags & FF_MOV_FLAG_ISML)
3689  return update_size(pb, pos);
3690 
3691  for (i = 0; i < mov->nb_streams; i++) {
3692  MOVTrack *track = &mov->tracks[i];
3693  if (track->nb_frag_info)
3694  mov_write_tfra_tag(pb, track);
3695  }
3696 
3697  avio_wb32(pb, 16);
3698  ffio_wfourcc(pb, "mfro");
3699  avio_wb32(pb, 0); /* version + flags */
3700  avio_wb32(pb, avio_tell(pb) + 4 - pos);
3701 
3702  return update_size(pb, pos);
3703 }
3704 
3706 {
3707  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3708  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3709 
3710  mov->mdat_pos = avio_tell(pb);
3711  avio_wb32(pb, 0); /* size placeholder*/
3712  ffio_wfourcc(pb, "mdat");
3713  return 0;
3714 }
3715 
3716 /* TODO: This needs to be more general */
3718 {
3719  MOVMuxContext *mov = s->priv_data;
3720  int64_t pos = avio_tell(pb);
3721  int has_h264 = 0, has_video = 0;
3722  int minor = 0x200;
3723  int i;
3724 
3725  for (i = 0; i < s->nb_streams; i++) {
3726  AVStream *st = s->streams[i];
3727  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3728  has_video = 1;
3729  if (st->codec->codec_id == AV_CODEC_ID_H264)
3730  has_h264 = 1;
3731  }
3732 
3733  avio_wb32(pb, 0); /* size */
3734  ffio_wfourcc(pb, "ftyp");
3735 
3736  if (mov->major_brand && strlen(mov->major_brand) >= 4)
3737  ffio_wfourcc(pb, mov->major_brand);
3738  else if (mov->mode == MODE_3GP) {
3739  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3740  minor = has_h264 ? 0x100 : 0x200;
3741  } else if (mov->mode & MODE_3G2) {
3742  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3743  minor = has_h264 ? 0x20000 : 0x10000;
3744  } else if (mov->mode == MODE_PSP)
3745  ffio_wfourcc(pb, "MSNV");
3746  else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3747  ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3748  else if (mov->mode == MODE_MP4)
3749  ffio_wfourcc(pb, "isom");
3750  else if (mov->mode == MODE_IPOD)
3751  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3752  else if (mov->mode == MODE_ISM)
3753  ffio_wfourcc(pb, "isml");
3754  else if (mov->mode == MODE_F4V)
3755  ffio_wfourcc(pb, "f4v ");
3756  else
3757  ffio_wfourcc(pb, "qt ");
3758 
3759  avio_wb32(pb, minor);
3760 
3761  if (mov->mode == MODE_MOV)
3762  ffio_wfourcc(pb, "qt ");
3763  else if (mov->mode == MODE_ISM) {
3764  ffio_wfourcc(pb, "piff");
3765  } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3766  ffio_wfourcc(pb, "isom");
3767  ffio_wfourcc(pb, "iso2");
3768  if (has_h264)
3769  ffio_wfourcc(pb, "avc1");
3770  }
3771 
3772  // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3773  // brand. This is compatible with users that don't understand tfdt.
3774  if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3775  ffio_wfourcc(pb, "iso6");
3776 
3777  if (mov->mode == MODE_3GP)
3778  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3779  else if (mov->mode & MODE_3G2)
3780  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3781  else if (mov->mode == MODE_PSP)
3782  ffio_wfourcc(pb, "MSNV");
3783  else if (mov->mode == MODE_MP4)
3784  ffio_wfourcc(pb, "mp41");
3785 
3786  if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
3787  ffio_wfourcc(pb, "dash");
3788 
3789  return update_size(pb, pos);
3790 }
3791 
3793 {
3794  AVStream *video_st = s->streams[0];
3795  AVCodecContext *video_codec = s->streams[0]->codec;
3796  AVCodecContext *audio_codec = s->streams[1]->codec;
3797  int audio_rate = audio_codec->sample_rate;
3798  // TODO: should be avg_frame_rate
3799  int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3800  int audio_kbitrate = audio_codec->bit_rate / 1000;
3801  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3802 
3803  avio_wb32(pb, 0x94); /* size */
3804  ffio_wfourcc(pb, "uuid");
3805  ffio_wfourcc(pb, "PROF");
3806 
3807  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3808  avio_wb32(pb, 0xbb88695c);
3809  avio_wb32(pb, 0xfac9c740);
3810 
3811  avio_wb32(pb, 0x0); /* ? */
3812  avio_wb32(pb, 0x3); /* 3 sections ? */
3813 
3814  avio_wb32(pb, 0x14); /* size */
3815  ffio_wfourcc(pb, "FPRF");
3816  avio_wb32(pb, 0x0); /* ? */
3817  avio_wb32(pb, 0x0); /* ? */
3818  avio_wb32(pb, 0x0); /* ? */
3819 
3820  avio_wb32(pb, 0x2c); /* size */
3821  ffio_wfourcc(pb, "APRF"); /* audio */
3822  avio_wb32(pb, 0x0);
3823  avio_wb32(pb, 0x2); /* TrackID */
3824  ffio_wfourcc(pb, "mp4a");
3825  avio_wb32(pb, 0x20f);
3826  avio_wb32(pb, 0x0);
3827  avio_wb32(pb, audio_kbitrate);
3828  avio_wb32(pb, audio_kbitrate);
3829  avio_wb32(pb, audio_rate);
3830  avio_wb32(pb, audio_codec->channels);
3831 
3832  avio_wb32(pb, 0x34); /* size */
3833  ffio_wfourcc(pb, "VPRF"); /* video */
3834  avio_wb32(pb, 0x0);
3835  avio_wb32(pb, 0x1); /* TrackID */
3836  if (video_codec->codec_id == AV_CODEC_ID_H264) {
3837  ffio_wfourcc(pb, "avc1");
3838  avio_wb16(pb, 0x014D);
3839  avio_wb16(pb, 0x0015);
3840  } else {
3841  ffio_wfourcc(pb, "mp4v");
3842  avio_wb16(pb, 0x0000);
3843  avio_wb16(pb, 0x0103);
3844  }
3845  avio_wb32(pb, 0x0);
3846  avio_wb32(pb, video_kbitrate);
3847  avio_wb32(pb, video_kbitrate);
3848  avio_wb32(pb, frame_rate);
3849  avio_wb32(pb, frame_rate);
3850  avio_wb16(pb, video_codec->width);
3851  avio_wb16(pb, video_codec->height);
3852  avio_wb32(pb, 0x010001); /* ? */
3853 }
3854 
3856 {
3857  MOVMuxContext *mov = s->priv_data;
3858  int i;
3859 
3860  mov_write_ftyp_tag(pb,s);
3861  if (mov->mode == MODE_PSP) {
3862  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3863  for (i = 0; i < s->nb_streams; i++) {
3864  AVStream *st = s->streams[i];
3865  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3866  video_streams_nb++;
3867  else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3868  audio_streams_nb++;
3869  else
3870  other_streams_nb++;
3871  }
3872 
3873  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3874  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3875  return AVERROR(EINVAL);
3876  }
3877  mov_write_uuidprof_tag(pb, s);
3878  }
3879  return 0;
3880 }
3881 
3882 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3883 {
3884  uint32_t c = -1;
3885  int i, closed_gop = 0;
3886 
3887  for (i = 0; i < pkt->size - 4; i++) {
3888  c = (c << 8) + pkt->data[i];
3889  if (c == 0x1b8) { // gop
3890  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3891  } else if (c == 0x100) { // pic
3892  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3893  if (!temp_ref || closed_gop) // I picture is not reordered
3894  *flags = MOV_SYNC_SAMPLE;
3895  else
3896  *flags = MOV_PARTIAL_SYNC_SAMPLE;
3897  break;
3898  }
3899  }
3900  return 0;
3901 }
3902 
3903 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3904 {
3905  const uint8_t *start, *next, *end = pkt->data + pkt->size;
3906  int seq = 0, entry = 0;
3907  int key = pkt->flags & AV_PKT_FLAG_KEY;
3908  start = find_next_marker(pkt->data, end);
3909  for (next = start; next < end; start = next) {
3910  next = find_next_marker(start + 4, end);
3911  switch (AV_RB32(start)) {
3912  case VC1_CODE_SEQHDR:
3913  seq = 1;
3914  break;
3915  case VC1_CODE_ENTRYPOINT:
3916  entry = 1;
3917  break;
3918  case VC1_CODE_SLICE:
3919  trk->vc1_info.slices = 1;
3920  break;
3921  }
3922  }
3923  if (!trk->entry && !fragment) {
3924  /* First packet in first fragment */
3925  trk->vc1_info.first_packet_seq = seq;
3926  trk->vc1_info.first_packet_entry = entry;
3927  } else if ((seq && !trk->vc1_info.packet_seq) ||
3928  (entry && !trk->vc1_info.packet_entry)) {
3929  int i;
3930  for (i = 0; i < trk->entry; i++)
3931  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3932  trk->has_keyframes = 0;
3933  if (seq)
3934  trk->vc1_info.packet_seq = 1;
3935  if (entry)
3936  trk->vc1_info.packet_entry = 1;
3937  if (!fragment) {
3938  /* First fragment */
3939  if ((!seq || trk->vc1_info.first_packet_seq) &&
3940  (!entry || trk->vc1_info.first_packet_entry)) {
3941  /* First packet had the same headers as this one, readd the
3942  * sync sample flag. */
3943  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3944  trk->has_keyframes = 1;
3945  }
3946  }
3947  }
3948  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3949  key = seq && entry;
3950  else if (trk->vc1_info.packet_seq)
3951  key = seq;
3952  else if (trk->vc1_info.packet_entry)
3953  key = entry;
3954  if (key) {
3955  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3956  trk->has_keyframes++;
3957  }
3958 }
3959 
3961 {
3962  MOVMuxContext *mov = s->priv_data;
3963  int i, first_track = -1;
3964  int64_t mdat_size = 0;
3965  int ret;
3966 
3967  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3968  return 0;
3969 
3970  if (mov->fragments == 0) {
3971  int64_t pos = avio_tell(s->pb);
3972  uint8_t *buf;
3973  int buf_size, moov_size;
3974 
3975  for (i = 0; i < mov->nb_streams; i++)
3976  if (!mov->tracks[i].entry)
3977  break;
3978  /* Don't write the initial moov unless all tracks have data */
3979  if (i < mov->nb_streams)
3980  return 0;
3981 
3982  moov_size = get_moov_size(s);
3983  for (i = 0; i < mov->nb_streams; i++)
3984  mov->tracks[i].data_offset = pos + moov_size + 8;
3985 
3988  if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
3989  return ret;
3990 
3991  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3992  if (mov->flags & FF_MOV_FLAG_FASTSTART)
3993  mov->reserved_moov_pos = avio_tell(s->pb);
3994  avio_flush(s->pb);
3995  mov->fragments++;
3996  return 0;
3997  }
3998 
3999  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4000  mov->mdat_buf = NULL;
4001  avio_wb32(s->pb, buf_size + 8);
4002  ffio_wfourcc(s->pb, "mdat");
4003  avio_write(s->pb, buf, buf_size);
4004  av_free(buf);
4005 
4006  mov->fragments++;
4007  mov->mdat_size = 0;
4008  for (i = 0; i < mov->nb_streams; i++) {
4009  if (mov->tracks[i].entry)
4010  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4011  mov->tracks[i].track_duration -
4012  mov->tracks[i].cluster[0].dts;
4013  mov->tracks[i].entry = 0;
4014  }
4015  avio_flush(s->pb);
4016  return 0;
4017  }
4018 
4019  for (i = 0; i < mov->nb_streams; i++) {
4020  MOVTrack *track = &mov->tracks[i];
4021  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
4022  track->data_offset = 0;
4023  else
4024  track->data_offset = mdat_size;
4025  if (!track->mdat_buf)
4026  continue;
4027  mdat_size += avio_tell(track->mdat_buf);
4028  if (first_track < 0)
4029  first_track = i;
4030  }
4031 
4032  if (!mdat_size)
4033  return 0;
4034 
4035  for (i = 0; i < mov->nb_streams; i++) {
4036  MOVTrack *track = &mov->tracks[i];
4037  int buf_size, write_moof = 1, moof_tracks = -1;
4038  uint8_t *buf;
4039  int64_t duration = 0;
4040 
4041  if (track->entry)
4042  duration = track->start_dts + track->track_duration -
4043  track->cluster[0].dts;
4044  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4045  if (!track->mdat_buf)
4046  continue;
4047  mdat_size = avio_tell(track->mdat_buf);
4048  moof_tracks = i;
4049  } else {
4050  write_moof = i == first_track;
4051  }
4052 
4053  if (write_moof) {
4054  avio_flush(s->pb);
4055 
4056  mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4057  mov->fragments++;
4058 
4059  avio_wb32(s->pb, mdat_size + 8);
4060  ffio_wfourcc(s->pb, "mdat");
4061  }
4062 
4063  if (track->entry)
4064  track->frag_start += duration;
4065  track->entry = 0;
4066  if (!track->mdat_buf)
4067  continue;
4068  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4069  track->mdat_buf = NULL;
4070 
4071  avio_write(s->pb, buf, buf_size);
4072  av_free(buf);
4073  }
4074 
4075  mov->mdat_size = 0;
4076 
4077  avio_flush(s->pb);
4078  return 0;
4079 }
4080 
4082 {
4083  MOVMuxContext *mov = s->priv_data;
4084  int ret = mov_flush_fragment(s);
4085  if (ret < 0)
4086  return ret;
4087  // If using delay_moov, the first flush only wrote the moov,
4088  // not the actual moof+mdat pair, thus flush once again.
4089  if (mov->fragments == 1 && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4090  ret = mov_flush_fragment(s);
4091  return ret;
4092 }
4093 
4095 {
4096  MOVMuxContext *mov = s->priv_data;
4097  AVIOContext *pb = s->pb;
4098  MOVTrack *trk = &mov->tracks[pkt->stream_index];
4099  AVCodecContext *enc = trk->enc;
4100  unsigned int samples_in_chunk = 0;
4101  int size = pkt->size, ret = 0;
4102  uint8_t *reformatted_data = NULL;
4103 
4104  if (trk->entry) {
4105  int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4106  if (duration < 0 || duration > INT_MAX) {
4107  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4108  duration, pkt->dts
4109  );
4110 
4111  pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4112  pkt->pts = AV_NOPTS_VALUE;
4113  }
4114  if (pkt->duration < 0) {
4115  av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4116  return AVERROR(EINVAL);
4117  }
4118  }
4119  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4120  int ret;
4121  if (mov->fragments > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4122  if (!trk->mdat_buf) {
4123  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4124  return ret;
4125  }
4126  pb = trk->mdat_buf;
4127  } else {
4128  if (!mov->mdat_buf) {
4129  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4130  return ret;
4131  }
4132  pb = mov->mdat_buf;
4133  }
4134  }
4135 
4136  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4137  /* We must find out how many AMR blocks there are in one packet */
4138  static uint16_t packed_size[16] =
4139  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4140  int len = 0;
4141 
4142  while (len < size && samples_in_chunk < 100) {
4143  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4144  samples_in_chunk++;
4145  }
4146  if (samples_in_chunk > 1) {
4147  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4148  return -1;
4149  }
4150  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4152  samples_in_chunk = enc->frame_size;
4153  } else if (trk->sample_size)
4154  samples_in_chunk = size / trk->sample_size;
4155  else
4156  samples_in_chunk = 1;
4157 
4158  /* copy extradata if it exists */
4159  if (trk->vos_len == 0 && enc->extradata_size > 0 && !TAG_IS_AVCI(trk->tag)) {
4160  trk->vos_len = enc->extradata_size;
4161  trk->vos_data = av_malloc(trk->vos_len);
4162  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4163  }
4164 
4165  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4166  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4167  if (!s->streams[pkt->stream_index]->nb_frames) {
4168  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4169  "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4170  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4171  return -1;
4172  }
4173  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4174  }
4175  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4176  /* from x264 or from bytestream h264 */
4177  /* nal reformating needed */
4178  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4179  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4180  &size);
4181  avio_write(pb, reformatted_data, size);
4182  } else {
4183  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4184  }
4185  } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4186  (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4187  /* extradata is Annex B, assume the bitstream is too and convert it */
4188  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4189  ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4190  avio_write(pb, reformatted_data, size);
4191  } else {
4192  size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4193  }
4194  } else if (CONFIG_AC3_PARSER && enc->codec_id == AV_CODEC_ID_EAC3) {
4195  size = handle_eac3(mov, pkt, trk);
4196  if (size < 0)
4197  return size;
4198  else if (!size)
4199  goto end;
4200  avio_write(pb, pkt->data, size);
4201  } else {
4202  avio_write(pb, pkt->data, size);
4203  }
4204 
4205  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4206  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4207  /* copy frame to create needed atoms */
4208  trk->vos_len = size;
4209  trk->vos_data = av_malloc(size);
4210  if (!trk->vos_data) {
4211  ret = AVERROR(ENOMEM);
4212  goto err;
4213  }
4214  memcpy(trk->vos_data, pkt->data, size);
4215  }
4216 
4217  if (trk->entry >= trk->cluster_capacity) {
4218  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4219  if (av_reallocp_array(&trk->cluster, new_capacity,
4220  sizeof(*trk->cluster))) {
4221  ret = AVERROR(ENOMEM);
4222  goto err;
4223  }
4224  trk->cluster_capacity = new_capacity;
4225  }
4226 
4227  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4228  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4229  trk->cluster[trk->entry].chunkNum = 0;
4230  trk->cluster[trk->entry].size = size;
4231  trk->cluster[trk->entry].entries = samples_in_chunk;
4232  trk->cluster[trk->entry].dts = pkt->dts;
4233  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4234  if (!trk->frag_discont) {
4235  /* First packet of a new fragment. We already wrote the duration
4236  * of the last packet of the previous fragment based on track_duration,
4237  * which might not exactly match our dts. Therefore adjust the dts
4238  * of this packet to be what the previous packets duration implies. */
4239  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4240  /* We also may have written the pts and the corresponding duration
4241  * in sidx tags; make sure the sidx pts and duration match up with
4242  * the next fragment. This means the cts of the first sample must
4243  * be the same in all fragments. */
4244  pkt->pts = pkt->dts + trk->start_cts;
4245  } else {
4246  /* New fragment, but discontinuous from previous fragments.
4247  * Pretend the duration sum of the earlier fragments is
4248  * pkt->dts - trk->start_dts. */
4249  trk->frag_start = pkt->dts - trk->start_dts;
4250  trk->frag_discont = 0;
4251  }
4252  }
4253 
4254  if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4256  /* Not using edit lists and shifting the first track to start from zero.
4257  * If the other streams start from a later timestamp, we won't be able
4258  * to signal the difference in starting time without an edit list.
4259  * Thus move the timestamp for this first sample to 0, increasing
4260  * its duration instead. */
4261  trk->cluster[trk->entry].dts = trk->start_dts = 0;
4262  }
4263  if (trk->start_dts == AV_NOPTS_VALUE) {
4264  trk->start_dts