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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 "movenc.h"
25 #include "avformat.h"
26 #include "avio_internal.h"
27 #include "riff.h"
28 #include "avio.h"
29 #include "isom.h"
30 #include "avc.h"
31 #include "libavcodec/get_bits.h"
32 #include "libavcodec/put_bits.h"
33 #include "libavcodec/vc1.h"
34 #include "internal.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/opt.h"
39 #include "libavutil/dict.h"
40 #include "rtpenc.h"
41 #include "mov_chan.h"
42 
43 #undef NDEBUG
44 #include <assert.h>
45 
46 static const AVOption options[] = {
47  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
48  { "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" },
49  { "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 },
50  { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
51  { "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" },
52  { "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" },
53  { "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" },
54  { "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" },
55  { "faststart", "Run a second pass to put the moov 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" },
56  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
57  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
58  { "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},
59  { "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},
60  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
61  { "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},
62  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
63  { "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},
64  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
65  { "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},
66  { NULL },
67 };
68 
69 #define MOV_CLASS(flavor)\
70 static const AVClass flavor ## _muxer_class = {\
71  .class_name = #flavor " muxer",\
72  .item_name = av_default_item_name,\
73  .option = options,\
74  .version = LIBAVUTIL_VERSION_INT,\
75 };
76 
77 //FIXME support 64 bit variant with wide placeholders
78 static int64_t update_size(AVIOContext *pb, int64_t pos)
79 {
80  int64_t curpos = avio_tell(pb);
81  avio_seek(pb, pos, SEEK_SET);
82  avio_wb32(pb, curpos - pos); /* rewrite size */
83  avio_seek(pb, curpos, SEEK_SET);
84 
85  return curpos - pos;
86 }
87 
88 static int supports_edts(MOVMuxContext *mov)
89 {
90  // EDTS with fragments is tricky as we don't know the duration when its written
91  return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
92 }
93 
94 static int is_co64_required(const MOVTrack *track)
95 {
96  int i;
97 
98  for (i = 0; i < track->entry; i++) {
99  if (!track->cluster[i].chunkNum)
100  continue;
101  if (track->cluster[i].pos + track->data_offset > UINT32_MAX)
102  return 1;
103  }
104  return 0;
105 }
106 
107 /* Chunk offset atom */
108 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
109 {
110  int i;
111  int mode64 = is_co64_required(track); // use 32 bit size variant if possible
112  int64_t pos = avio_tell(pb);
113  avio_wb32(pb, 0); /* size */
114  if (mode64)
115  ffio_wfourcc(pb, "co64");
116  else
117  ffio_wfourcc(pb, "stco");
118  avio_wb32(pb, 0); /* version & flags */
119  avio_wb32(pb, track->chunkCount); /* entry count */
120  for (i = 0; i < track->entry; i++) {
121  if (!track->cluster[i].chunkNum)
122  continue;
123  if (mode64 == 1)
124  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
125  else
126  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
127  }
128  return update_size(pb, pos);
129 }
130 
131 /* Sample size atom */
132 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
133 {
134  int equalChunks = 1;
135  int i, j, entries = 0, tst = -1, oldtst = -1;
136 
137  int64_t pos = avio_tell(pb);
138  avio_wb32(pb, 0); /* size */
139  ffio_wfourcc(pb, "stsz");
140  avio_wb32(pb, 0); /* version & flags */
141 
142  for (i = 0; i < track->entry; i++) {
143  tst = track->cluster[i].size / track->cluster[i].entries;
144  if (oldtst != -1 && tst != oldtst)
145  equalChunks = 0;
146  oldtst = tst;
147  entries += track->cluster[i].entries;
148  }
149  if (equalChunks && track->entry) {
150  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
151  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
152  avio_wb32(pb, sSize); // sample size
153  avio_wb32(pb, entries); // sample count
154  } else {
155  avio_wb32(pb, 0); // sample size
156  avio_wb32(pb, entries); // sample count
157  for (i = 0; i < track->entry; i++) {
158  for (j = 0; j < track->cluster[i].entries; j++) {
159  avio_wb32(pb, track->cluster[i].size /
160  track->cluster[i].entries);
161  }
162  }
163  }
164  return update_size(pb, pos);
165 }
166 
167 /* Sample to chunk atom */
168 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
169 {
170  int index = 0, oldval = -1, i;
171  int64_t entryPos, curpos;
172 
173  int64_t pos = avio_tell(pb);
174  avio_wb32(pb, 0); /* size */
175  ffio_wfourcc(pb, "stsc");
176  avio_wb32(pb, 0); // version & flags
177  entryPos = avio_tell(pb);
178  avio_wb32(pb, track->chunkCount); // entry count
179  for (i = 0; i < track->entry; i++) {
180  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
181  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
182  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
183  avio_wb32(pb, 0x1); // sample description index
184  oldval = track->cluster[i].samples_in_chunk;
185  index++;
186  }
187  }
188  curpos = avio_tell(pb);
189  avio_seek(pb, entryPos, SEEK_SET);
190  avio_wb32(pb, index); // rewrite size
191  avio_seek(pb, curpos, SEEK_SET);
192 
193  return update_size(pb, pos);
194 }
195 
196 /* Sync sample atom */
197 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
198 {
199  int64_t curpos, entryPos;
200  int i, index = 0;
201  int64_t pos = avio_tell(pb);
202  avio_wb32(pb, 0); // size
203  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
204  avio_wb32(pb, 0); // version & flags
205  entryPos = avio_tell(pb);
206  avio_wb32(pb, track->entry); // entry count
207  for (i = 0; i < track->entry; i++) {
208  if (track->cluster[i].flags & flag) {
209  avio_wb32(pb, i + 1);
210  index++;
211  }
212  }
213  curpos = avio_tell(pb);
214  avio_seek(pb, entryPos, SEEK_SET);
215  avio_wb32(pb, index); // rewrite size
216  avio_seek(pb, curpos, SEEK_SET);
217  return update_size(pb, pos);
218 }
219 
220 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
221 {
222  avio_wb32(pb, 0x11); /* size */
223  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
224  else ffio_wfourcc(pb, "damr");
225  ffio_wfourcc(pb, "FFMP");
226  avio_w8(pb, 0); /* decoder version */
227 
228  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
229  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
230  avio_w8(pb, 0x01); /* Frames per sample */
231  return 0x11;
232 }
233 
234 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
235 {
236  GetBitContext gbc;
237  PutBitContext pbc;
238  uint8_t buf[3];
239  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
240 
241  if (track->vos_len < 7)
242  return -1;
243 
244  avio_wb32(pb, 11);
245  ffio_wfourcc(pb, "dac3");
246 
247  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
248  fscod = get_bits(&gbc, 2);
249  frmsizecod = get_bits(&gbc, 6);
250  bsid = get_bits(&gbc, 5);
251  bsmod = get_bits(&gbc, 3);
252  acmod = get_bits(&gbc, 3);
253  if (acmod == 2) {
254  skip_bits(&gbc, 2); // dsurmod
255  } else {
256  if ((acmod & 1) && acmod != 1)
257  skip_bits(&gbc, 2); // cmixlev
258  if (acmod & 4)
259  skip_bits(&gbc, 2); // surmixlev
260  }
261  lfeon = get_bits1(&gbc);
262 
263  init_put_bits(&pbc, buf, sizeof(buf));
264  put_bits(&pbc, 2, fscod);
265  put_bits(&pbc, 5, bsid);
266  put_bits(&pbc, 3, bsmod);
267  put_bits(&pbc, 3, acmod);
268  put_bits(&pbc, 1, lfeon);
269  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
270  put_bits(&pbc, 5, 0); // reserved
271 
272  flush_put_bits(&pbc);
273  avio_write(pb, buf, sizeof(buf));
274 
275  return 11;
276 }
277 
278 /**
279  * This function writes extradata "as is".
280  * Extradata must be formatted like a valid atom (with size and tag).
281  */
283 {
284  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
285  return track->enc->extradata_size;
286 }
287 
289 {
290  avio_wb32(pb, 10);
291  ffio_wfourcc(pb, "enda");
292  avio_wb16(pb, 1); /* little endian */
293  return 10;
294 }
295 
297 {
298  avio_wb32(pb, 10);
299  ffio_wfourcc(pb, "enda");
300  avio_wb16(pb, 0); /* big endian */
301  return 10;
302 }
303 
304 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
305 {
306  int i = 3;
307  avio_w8(pb, tag);
308  for (; i > 0; i--)
309  avio_w8(pb, (size >> (7 * i)) | 0x80);
310  avio_w8(pb, size & 0x7F);
311 }
312 
313 static unsigned compute_avg_bitrate(MOVTrack *track)
314 {
315  uint64_t size = 0;
316  int i;
317  if (!track->track_duration)
318  return 0;
319  for (i = 0; i < track->entry; i++)
320  size += track->cluster[i].size;
321  return size * 8 * track->timescale / track->track_duration;
322 }
323 
324 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
325 {
326  int64_t pos = avio_tell(pb);
327  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
328  unsigned avg_bitrate;
329 
330  avio_wb32(pb, 0); // size
331  ffio_wfourcc(pb, "esds");
332  avio_wb32(pb, 0); // Version
333 
334  // ES descriptor
335  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
336  avio_wb16(pb, track->track_id);
337  avio_w8(pb, 0x00); // flags (= no flags)
338 
339  // DecoderConfig descriptor
340  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
341 
342  // Object type indication
343  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
344  track->enc->codec_id == AV_CODEC_ID_MP3) &&
345  track->enc->sample_rate > 24000)
346  avio_w8(pb, 0x6B); // 11172-3
347  else
349 
350  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
351  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
352  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
353  avio_w8(pb, 0x15); // flags (= Audiostream)
354  else
355  avio_w8(pb, 0x11); // flags (= Visualstream)
356 
357  avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
358 
359  avg_bitrate = compute_avg_bitrate(track);
360  // maxbitrate (FIXME should be max rate in any 1 sec window)
361  avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
362  avio_wb32(pb, avg_bitrate);
363 
364  if (track->vos_len) {
365  // DecoderSpecific info descriptor
366  put_descr(pb, 0x05, track->vos_len);
367  avio_write(pb, track->vos_data, track->vos_len);
368  }
369 
370  // SL descriptor
371  put_descr(pb, 0x06, 1);
372  avio_w8(pb, 0x02);
373  return update_size(pb, pos);
374 }
375 
377 {
378  return codec_id == AV_CODEC_ID_PCM_S24LE ||
379  codec_id == AV_CODEC_ID_PCM_S32LE ||
380  codec_id == AV_CODEC_ID_PCM_F32LE ||
381  codec_id == AV_CODEC_ID_PCM_F64LE;
382 }
383 
385 {
386  return codec_id == AV_CODEC_ID_PCM_S24BE ||
387  codec_id == AV_CODEC_ID_PCM_S32BE ||
388  codec_id == AV_CODEC_ID_PCM_F32BE ||
389  codec_id == AV_CODEC_ID_PCM_F64BE;
390 }
391 
392 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
393 {
394  int64_t pos = avio_tell(pb);
395  avio_wb32(pb, 0);
396  avio_wl32(pb, track->tag); // store it byteswapped
397  track->enc->codec_tag = av_bswap16(track->tag >> 16);
398  ff_put_wav_header(pb, track->enc);
399  return update_size(pb, pos);
400 }
401 
402 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
403 {
404  int64_t pos = avio_tell(pb);
405  avio_wb32(pb, 0);
406  ffio_wfourcc(pb, "wfex");
407  ff_put_wav_header(pb, track->enc);
408  return update_size(pb, pos);
409 }
410 
411 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
412 {
413  uint32_t layout_tag, bitmap;
414  int64_t pos = avio_tell(pb);
415 
416  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
417  track->enc->channel_layout,
418  &bitmap);
419  if (!layout_tag) {
420  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
421  "lack of channel information\n");
422  return 0;
423  }
424 
425  avio_wb32(pb, 0); // Size
426  ffio_wfourcc(pb, "chan"); // Type
427  avio_w8(pb, 0); // Version
428  avio_wb24(pb, 0); // Flags
429  avio_wb32(pb, layout_tag); // mChannelLayoutTag
430  avio_wb32(pb, bitmap); // mChannelBitmap
431  avio_wb32(pb, 0); // mNumberChannelDescriptions
432 
433  return update_size(pb, pos);
434 }
435 
436 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
437 {
438  int64_t pos = avio_tell(pb);
439 
440  avio_wb32(pb, 0); /* size */
441  ffio_wfourcc(pb, "wave");
442 
443  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
444  avio_wb32(pb, 12); /* size */
445  ffio_wfourcc(pb, "frma");
446  avio_wl32(pb, track->tag);
447  }
448 
449  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
450  /* useless atom needed by mplayer, ipod, not needed by quicktime */
451  avio_wb32(pb, 12); /* size */
452  ffio_wfourcc(pb, "mp4a");
453  avio_wb32(pb, 0);
454  mov_write_esds_tag(pb, track);
455  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
456  mov_write_enda_tag(pb);
457  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
459  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
460  mov_write_amr_tag(pb, track);
461  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
462  mov_write_ac3_tag(pb, track);
463  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
464  track->enc->codec_id == AV_CODEC_ID_QDM2) {
465  mov_write_extradata_tag(pb, track);
466  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
468  mov_write_ms_tag(pb, track);
469  }
470 
471  avio_wb32(pb, 8); /* size */
472  avio_wb32(pb, 0); /* null tag */
473 
474  return update_size(pb, pos);
475 }
476 
478 {
479  uint8_t *unescaped;
480  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
481  int unescaped_size, seq_found = 0;
482  int level = 0, interlace = 0;
483  int packet_seq = track->vc1_info.packet_seq;
484  int packet_entry = track->vc1_info.packet_entry;
485  int slices = track->vc1_info.slices;
486  PutBitContext pbc;
487 
488  if (track->start_dts == AV_NOPTS_VALUE) {
489  /* No packets written yet, vc1_info isn't authoritative yet. */
490  /* Assume inline sequence and entry headers. This will be
491  * overwritten at the end if the file is seekable. */
492  packet_seq = packet_entry = 1;
493  }
494 
495  unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
496  if (!unescaped)
497  return AVERROR(ENOMEM);
498  start = find_next_marker(track->vos_data, end);
499  for (next = start; next < end; start = next) {
500  GetBitContext gb;
501  int size;
502  next = find_next_marker(start + 4, end);
503  size = next - start - 4;
504  if (size <= 0)
505  continue;
506  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
507  init_get_bits(&gb, unescaped, 8 * unescaped_size);
508  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
509  int profile = get_bits(&gb, 2);
510  if (profile != PROFILE_ADVANCED) {
511  av_free(unescaped);
512  return AVERROR(ENOSYS);
513  }
514  seq_found = 1;
515  level = get_bits(&gb, 3);
516  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
517  * width, height */
518  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
519  skip_bits(&gb, 1); /* broadcast */
520  interlace = get_bits1(&gb);
521  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
522  }
523  }
524  if (!seq_found) {
525  av_free(unescaped);
526  return AVERROR(ENOSYS);
527  }
528 
529  init_put_bits(&pbc, buf, 7);
530  /* VC1DecSpecStruc */
531  put_bits(&pbc, 4, 12); /* profile - advanced */
532  put_bits(&pbc, 3, level);
533  put_bits(&pbc, 1, 0); /* reserved */
534  /* VC1AdvDecSpecStruc */
535  put_bits(&pbc, 3, level);
536  put_bits(&pbc, 1, 0); /* cbr */
537  put_bits(&pbc, 6, 0); /* reserved */
538  put_bits(&pbc, 1, !interlace); /* no interlace */
539  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
540  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
541  put_bits(&pbc, 1, !slices); /* no slice code */
542  put_bits(&pbc, 1, 0); /* no bframe */
543  put_bits(&pbc, 1, 0); /* reserved */
544  put_bits32(&pbc, track->enc->time_base.den); /* framerate */
545  flush_put_bits(&pbc);
546 
547  av_free(unescaped);
548 
549  return 0;
550 }
551 
552 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
553 {
554  uint8_t buf[7] = { 0 };
555  int ret;
556 
557  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
558  return ret;
559 
560  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
561  ffio_wfourcc(pb, "dvc1");
562  track->vc1_info.struct_offset = avio_tell(pb);
563  avio_write(pb, buf, sizeof(buf));
564  avio_write(pb, track->vos_data, track->vos_len);
565 
566  return 0;
567 }
568 
569 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
570 {
571  avio_wb32(pb, track->vos_len + 8);
572  ffio_wfourcc(pb, "glbl");
573  avio_write(pb, track->vos_data, track->vos_len);
574  return 8 + track->vos_len;
575 }
576 
577 /**
578  * Compute flags for 'lpcm' tag.
579  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
580  */
582 {
583  switch (codec_id) {
586  return 11;
589  return 9;
590  case AV_CODEC_ID_PCM_U8:
591  return 10;
595  return 14;
596  case AV_CODEC_ID_PCM_S8:
600  return 12;
601  default:
602  return 0;
603  }
604 }
605 
606 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
607 {
608  int64_t next_dts;
609 
610  if (cluster_idx >= track->entry)
611  return 0;
612 
613  if (cluster_idx + 1 == track->entry)
614  next_dts = track->track_duration + track->start_dts;
615  else
616  next_dts = track->cluster[cluster_idx + 1].dts;
617 
618  return next_dts - track->cluster[cluster_idx].dts;
619 }
620 
622 {
623  int i, first_duration;
624 
625 // return track->enc->frame_size;
626 
627  /* use 1 for raw PCM */
628  if (!track->audio_vbr)
629  return 1;
630 
631  /* check to see if duration is constant for all clusters */
632  if (!track->entry)
633  return 0;
634  first_duration = get_cluster_duration(track, 0);
635  for (i = 1; i < track->entry; i++) {
636  if (get_cluster_duration(track, i) != first_duration)
637  return 0;
638  }
639  return first_duration;
640 }
641 
642 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
643 {
644  int64_t pos = avio_tell(pb);
645  int version = 0;
646  uint32_t tag = track->tag;
647 
648  if (track->mode == MODE_MOV) {
649  if (track->timescale > UINT16_MAX) {
650  if (mov_get_lpcm_flags(track->enc->codec_id))
651  tag = AV_RL32("lpcm");
652  version = 2;
653  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
654  mov_pcm_be_gt16(track->enc->codec_id) ||
655  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
657  track->enc->codec_id == AV_CODEC_ID_QDM2) {
658  version = 1;
659  }
660  }
661 
662  avio_wb32(pb, 0); /* size */
663  avio_wl32(pb, tag); // store it byteswapped
664  avio_wb32(pb, 0); /* Reserved */
665  avio_wb16(pb, 0); /* Reserved */
666  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
667 
668  /* SoundDescription */
669  avio_wb16(pb, version); /* Version */
670  avio_wb16(pb, 0); /* Revision level */
671  avio_wb32(pb, 0); /* Reserved */
672 
673  if (version == 2) {
674  avio_wb16(pb, 3);
675  avio_wb16(pb, 16);
676  avio_wb16(pb, 0xfffe);
677  avio_wb16(pb, 0);
678  avio_wb32(pb, 0x00010000);
679  avio_wb32(pb, 72);
680  avio_wb64(pb, av_double2int(track->enc->sample_rate));
681  avio_wb32(pb, track->enc->channels);
682  avio_wb32(pb, 0x7F000000);
685  avio_wb32(pb, track->sample_size);
686  avio_wb32(pb, get_samples_per_packet(track));
687  } else {
688  if (track->mode == MODE_MOV) {
689  avio_wb16(pb, track->enc->channels);
690  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
691  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
692  avio_wb16(pb, 8); /* bits per sample */
693  else
694  avio_wb16(pb, 16);
695  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
696  } else { /* reserved for mp4/3gp */
697  avio_wb16(pb, 2);
698  avio_wb16(pb, 16);
699  avio_wb16(pb, 0);
700  }
701 
702  avio_wb16(pb, 0); /* packet size (= 0) */
703  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
704  track->enc->sample_rate : 0);
705  avio_wb16(pb, 0); /* Reserved */
706  }
707 
708  if (version == 1) { /* SoundDescription V1 extended info */
709  if (mov_pcm_le_gt16(track->enc->codec_id) ||
710  mov_pcm_be_gt16(track->enc->codec_id))
711  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
712  else
713  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
714  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
715  avio_wb32(pb, track->sample_size); /* Bytes per frame */
716  avio_wb32(pb, 2); /* Bytes per sample */
717  }
718 
719  if (track->mode == MODE_MOV &&
720  (track->enc->codec_id == AV_CODEC_ID_AAC ||
721  track->enc->codec_id == AV_CODEC_ID_AC3 ||
722  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
723  track->enc->codec_id == AV_CODEC_ID_ALAC ||
724  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
726  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
727  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
728  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
729  mov_write_wave_tag(pb, track);
730  else if (track->tag == MKTAG('m','p','4','a'))
731  mov_write_esds_tag(pb, track);
732  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
733  mov_write_amr_tag(pb, track);
734  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
735  mov_write_ac3_tag(pb, track);
736  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
737  mov_write_extradata_tag(pb, track);
738  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
739  mov_write_wfex_tag(pb, track);
740  else if (track->vos_len > 0)
741  mov_write_glbl_tag(pb, track);
742 
743  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
744  mov_write_chan_tag(pb, track);
745 
746  return update_size(pb, pos);
747 }
748 
750 {
751  avio_wb32(pb, 0xf); /* size */
752  ffio_wfourcc(pb, "d263");
753  ffio_wfourcc(pb, "FFMP");
754  avio_w8(pb, 0); /* decoder version */
755  /* FIXME use AVCodecContext level/profile, when encoder will set values */
756  avio_w8(pb, 0xa); /* level */
757  avio_w8(pb, 0); /* profile */
758  return 0xf;
759 }
760 
761 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
762 {
763  int64_t pos = avio_tell(pb);
764 
765  avio_wb32(pb, 0);
766  ffio_wfourcc(pb, "avcC");
767  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
768  return update_size(pb, pos);
769 }
770 
771 /* also used by all avid codecs (dv, imx, meridien) and their variants */
772 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
773 {
774  int i;
775  avio_wb32(pb, 24); /* size */
776  ffio_wfourcc(pb, "ACLR");
777  ffio_wfourcc(pb, "ACLR");
778  ffio_wfourcc(pb, "0001");
779  avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
780  avio_wb32(pb, 0); /* unknown */
781 
782  avio_wb32(pb, 24); /* size */
783  ffio_wfourcc(pb, "APRG");
784  ffio_wfourcc(pb, "APRG");
785  ffio_wfourcc(pb, "0001");
786  avio_wb32(pb, 1); /* unknown */
787  avio_wb32(pb, 0); /* unknown */
788 
789  avio_wb32(pb, 120); /* size */
790  ffio_wfourcc(pb, "ARES");
791  ffio_wfourcc(pb, "ARES");
792  ffio_wfourcc(pb, "0001");
793  avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
794  avio_wb32(pb, track->enc->width);
795  /* values below are based on samples created with quicktime and avid codecs */
796  if (track->vos_data[5] & 2) { // interlaced
797  avio_wb32(pb, track->enc->height / 2);
798  avio_wb32(pb, 2); /* unknown */
799  avio_wb32(pb, 0); /* unknown */
800  avio_wb32(pb, 4); /* unknown */
801  } else {
802  avio_wb32(pb, track->enc->height);
803  avio_wb32(pb, 1); /* unknown */
804  avio_wb32(pb, 0); /* unknown */
805  if (track->enc->height == 1080)
806  avio_wb32(pb, 5); /* unknown */
807  else
808  avio_wb32(pb, 6); /* unknown */
809  }
810  /* padding */
811  for (i = 0; i < 10; i++)
812  avio_wb64(pb, 0);
813 
814  /* extra padding for stsd needed */
815  avio_wb32(pb, 0);
816  return 0;
817 }
818 
820 {
821  int tag = track->enc->codec_tag;
822 
824  return 0;
825 
826  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
827  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
828  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
829  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
830  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
831  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
832  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
833 
834  return tag;
835 }
836 
837 static const AVCodecTag codec_ipod_tags[] = {
838  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
839  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
840  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
841  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
842  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
843  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
844  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
845  { AV_CODEC_ID_NONE, 0 },
846 };
847 
849 {
850  int tag = track->enc->codec_tag;
851 
852  // keep original tag for subs, ipod supports both formats
853  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
854  (tag == MKTAG('t', 'x', '3', 'g') ||
855  tag == MKTAG('t', 'e', 'x', 't'))))
856  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
857 
858  if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
859  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
860  "Quicktime/Ipod might not play the file\n");
861 
862  return tag;
863 }
864 
866 {
867  int tag;
868 
869  if (track->enc->width == 720) { /* SD */
870  if (track->enc->height == 480) { /* NTSC */
871  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
872  else tag = MKTAG('d','v','c',' ');
873  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
874  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
875  else tag = MKTAG('d','v','p','p');
876  } else if (track->enc->height == 720) { /* HD 720 line */
877  if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
878  else tag = MKTAG('d','v','h','p');
879  } else if (track->enc->height == 1080) { /* HD 1080 line */
880  if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
881  else tag = MKTAG('d','v','h','6');
882  } else {
883  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
884  return 0;
885  }
886 
887  return tag;
888 }
889 
890 static const struct {
892  uint32_t tag;
893  unsigned bps;
894 } mov_pix_fmt_tags[] = {
895  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
896  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
897  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
898  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
899  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
900  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
901  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
902  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
903  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
904  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
905  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
906  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
907  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
908  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
909  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
910 };
911 
913 {
914  int tag = track->enc->codec_tag;
915  int i;
916 
917  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
918  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
919  tag = mov_pix_fmt_tags[i].tag;
920  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
921  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
922  break;
923  }
924  }
925 
926  return tag;
927 }
928 
930 {
931  int tag = track->enc->codec_tag;
932 
933  if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
934  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
935  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
936  track->enc->codec_id == AV_CODEC_ID_H263 ||
937  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
938  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
939  tag = mov_get_dv_codec_tag(s, track);
940  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
941  tag = mov_get_rawvideo_codec_tag(s, track);
942  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
944  if (!tag) { // if no mac fcc found, try with Microsoft tags
946  if (tag)
947  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
948  "the file may be unplayable!\n");
949  }
950  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
952  if (!tag) { // if no mac fcc found, try with Microsoft tags
953  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
954  if (ms_tag) {
955  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
956  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
957  "the file may be unplayable!\n");
958  }
959  }
960  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
962  }
963 
964  return tag;
965 }
966 
967 static const AVCodecTag codec_3gp_tags[] = {
968  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
969  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
970  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
971  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
972  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
973  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
974  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
975  { AV_CODEC_ID_NONE, 0 },
976 };
977 
978 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
979  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
980  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
981  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
982  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
983  { AV_CODEC_ID_NONE, 0 },
984 };
985 
987 {
988  int tag;
989 
990  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
991  tag = mp4_get_codec_tag(s, track);
992  else if (track->mode == MODE_ISM) {
993  tag = mp4_get_codec_tag(s, track);
994  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
995  tag = MKTAG('w', 'm', 'a', ' ');
996  } else if (track->mode == MODE_IPOD)
997  tag = ipod_get_codec_tag(s, track);
998  else if (track->mode & MODE_3GP)
999  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1000  else if (track->mode & MODE_F4V)
1001  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1002  else
1003  tag = mov_get_codec_tag(s, track);
1004 
1005  return tag;
1006 }
1007 
1008 /** Write uuid atom.
1009  * Needed to make file play in iPods running newest firmware
1010  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1011  */
1013 {
1014  avio_wb32(pb, 28);
1015  ffio_wfourcc(pb, "uuid");
1016  avio_wb32(pb, 0x6b6840f2);
1017  avio_wb32(pb, 0x5f244fc5);
1018  avio_wb32(pb, 0xba39a51b);
1019  avio_wb32(pb, 0xcf0323f3);
1020  avio_wb32(pb, 0x0);
1021  return 28;
1022 }
1023 
1024 static const uint16_t fiel_data[] = {
1025  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1026 };
1027 
1028 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1029 {
1030  unsigned mov_field_order = 0;
1031  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1032  mov_field_order = fiel_data[track->enc->field_order];
1033  else
1034  return 0;
1035  avio_wb32(pb, 10);
1036  ffio_wfourcc(pb, "fiel");
1037  avio_wb16(pb, mov_field_order);
1038  return 10;
1039 }
1040 
1042 {
1043  int64_t pos = avio_tell(pb);
1044  avio_wb32(pb, 0); /* size */
1045  avio_wl32(pb, track->tag); // store it byteswapped
1046  avio_wb32(pb, 0); /* Reserved */
1047  avio_wb16(pb, 0); /* Reserved */
1048  avio_wb16(pb, 1); /* Data-reference index */
1049 
1050  if (track->enc->extradata_size)
1051  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1052 
1053  return update_size(pb, pos);
1054 }
1055 
1056 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1057 {
1058  AVRational sar;
1059  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1060  track->enc->sample_aspect_ratio.den, INT_MAX);
1061 
1062  avio_wb32(pb, 16);
1063  ffio_wfourcc(pb, "pasp");
1064  avio_wb32(pb, sar.num);
1065  avio_wb32(pb, sar.den);
1066  return 16;
1067 }
1068 
1070 {
1071  int64_t pos = avio_tell(pb);
1072  char compressor_name[32] = { 0 };
1073 
1074  avio_wb32(pb, 0); /* size */
1075  avio_wl32(pb, track->tag); // store it byteswapped
1076  avio_wb32(pb, 0); /* Reserved */
1077  avio_wb16(pb, 0); /* Reserved */
1078  avio_wb16(pb, 1); /* Data-reference index */
1079 
1080  avio_wb16(pb, 0); /* Codec stream version */
1081  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1082  if (track->mode == MODE_MOV) {
1083  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1084  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1085  avio_wb32(pb, 0); /* Temporal Quality */
1086  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1087  } else {
1088  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1089  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1090  }
1091  } else {
1092  avio_wb32(pb, 0); /* Reserved */
1093  avio_wb32(pb, 0); /* Reserved */
1094  avio_wb32(pb, 0); /* Reserved */
1095  }
1096  avio_wb16(pb, track->enc->width); /* Video width */
1097  avio_wb16(pb, track->height); /* Video height */
1098  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1099  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1100  avio_wb32(pb, 0); /* Data size (= 0) */
1101  avio_wb16(pb, 1); /* Frame count (= 1) */
1102 
1103  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1104  if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
1105  av_strlcpy(compressor_name, track->enc->codec->name, 32);
1106  avio_w8(pb, strlen(compressor_name));
1107  avio_write(pb, compressor_name, 31);
1108 
1109  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1110  avio_wb16(pb, track->enc->bits_per_coded_sample);
1111  else
1112  avio_wb16(pb, 0x18); /* Reserved */
1113  avio_wb16(pb, 0xffff); /* Reserved */
1114  if (track->tag == MKTAG('m','p','4','v'))
1115  mov_write_esds_tag(pb, track);
1116  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1117  mov_write_d263_tag(pb);
1118  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1119  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1120  mov_write_extradata_tag(pb, track);
1121  avio_wb32(pb, 0);
1122  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1123  mov_write_avid_tag(pb, track);
1124  else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1125  mov_write_avcc_tag(pb, track);
1126  if (track->mode == MODE_IPOD)
1128  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1129  mov_write_dvc1_tag(pb, track);
1130  else if (track->vos_len > 0)
1131  mov_write_glbl_tag(pb, track);
1132 
1133  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1134  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1135  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1136  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1137  mov_write_fiel_tag(pb, track);
1138 
1139  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1140  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1141  mov_write_pasp_tag(pb, track);
1142  }
1143 
1144  return update_size(pb, pos);
1145 }
1146 
1147 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1148 {
1149  int64_t pos = avio_tell(pb);
1150  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1151  int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1152 
1153  if (nb_frames > 255) {
1154  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1155  return AVERROR(EINVAL);
1156  }
1157 
1158  avio_wb32(pb, 0); /* size */
1159  ffio_wfourcc(pb, "tmcd"); /* Data format */
1160  avio_wb32(pb, 0); /* Reserved */
1161  avio_wb32(pb, 1); /* Data reference index */
1162  avio_wb32(pb, 0); /* Flags */
1163  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1164  avio_wb32(pb, track->timescale); /* Timescale */
1165  avio_wb32(pb, frame_duration); /* Frame duration */
1166  avio_w8(pb, nb_frames); /* Number of frames */
1167  avio_wb24(pb, 0); /* Reserved */
1168  /* TODO: source reference string */
1169  return update_size(pb, pos);
1170 }
1171 
1172 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1173 {
1174  int64_t pos = avio_tell(pb);
1175  avio_wb32(pb, 0); /* size */
1176  ffio_wfourcc(pb, "rtp ");
1177  avio_wb32(pb, 0); /* Reserved */
1178  avio_wb16(pb, 0); /* Reserved */
1179  avio_wb16(pb, 1); /* Data-reference index */
1180 
1181  avio_wb16(pb, 1); /* Hint track version */
1182  avio_wb16(pb, 1); /* Highest compatible version */
1183  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1184 
1185  avio_wb32(pb, 12); /* size */
1186  ffio_wfourcc(pb, "tims");
1187  avio_wb32(pb, track->timescale);
1188 
1189  return update_size(pb, pos);
1190 }
1191 
1192 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1193 {
1194  int64_t pos = avio_tell(pb);
1195  avio_wb32(pb, 0); /* size */
1196  ffio_wfourcc(pb, "stsd");
1197  avio_wb32(pb, 0); /* version & flags */
1198  avio_wb32(pb, 1); /* entry count */
1199  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1200  mov_write_video_tag(pb, track);
1201  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1202  mov_write_audio_tag(pb, track);
1203  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1204  mov_write_subtitle_tag(pb, track);
1205  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1206  mov_write_rtp_tag(pb, track);
1207  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1208  mov_write_tmcd_tag(pb, track);
1209  return update_size(pb, pos);
1210 }
1211 
1212 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1213 {
1214  MOVStts *ctts_entries;
1215  uint32_t entries = 0;
1216  uint32_t atom_size;
1217  int i;
1218 
1219  ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1220  ctts_entries[0].count = 1;
1221  ctts_entries[0].duration = track->cluster[0].cts;
1222  for (i = 1; i < track->entry; i++) {
1223  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1224  ctts_entries[entries].count++; /* compress */
1225  } else {
1226  entries++;
1227  ctts_entries[entries].duration = track->cluster[i].cts;
1228  ctts_entries[entries].count = 1;
1229  }
1230  }
1231  entries++; /* last one */
1232  atom_size = 16 + (entries * 8);
1233  avio_wb32(pb, atom_size); /* size */
1234  ffio_wfourcc(pb, "ctts");
1235  avio_wb32(pb, 0); /* version & flags */
1236  avio_wb32(pb, entries); /* entry count */
1237  for (i = 0; i < entries; i++) {
1238  avio_wb32(pb, ctts_entries[i].count);
1239  avio_wb32(pb, ctts_entries[i].duration);
1240  }
1241  av_free(ctts_entries);
1242  return atom_size;
1243 }
1244 
1245 /* Time to sample atom */
1246 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1247 {
1248  MOVStts *stts_entries;
1249  uint32_t entries = -1;
1250  uint32_t atom_size;
1251  int i;
1252 
1253  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1254  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1255  stts_entries[0].count = track->sample_count;
1256  stts_entries[0].duration = 1;
1257  entries = 1;
1258  } else {
1259  stts_entries = track->entry ?
1260  av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1261  NULL;
1262  for (i = 0; i < track->entry; i++) {
1263  int duration = get_cluster_duration(track, i);
1264  if (i && duration == stts_entries[entries].duration) {
1265  stts_entries[entries].count++; /* compress */
1266  } else {
1267  entries++;
1268  stts_entries[entries].duration = duration;
1269  stts_entries[entries].count = 1;
1270  }
1271  }
1272  entries++; /* last one */
1273  }
1274  atom_size = 16 + (entries * 8);
1275  avio_wb32(pb, atom_size); /* size */
1276  ffio_wfourcc(pb, "stts");
1277  avio_wb32(pb, 0); /* version & flags */
1278  avio_wb32(pb, entries); /* entry count */
1279  for (i = 0; i < entries; i++) {
1280  avio_wb32(pb, stts_entries[i].count);
1281  avio_wb32(pb, stts_entries[i].duration);
1282  }
1283  av_free(stts_entries);
1284  return atom_size;
1285 }
1286 
1288 {
1289  avio_wb32(pb, 28); /* size */
1290  ffio_wfourcc(pb, "dref");
1291  avio_wb32(pb, 0); /* version & flags */
1292  avio_wb32(pb, 1); /* entry count */
1293 
1294  avio_wb32(pb, 0xc); /* size */
1295  //FIXME add the alis and rsrc atom
1296  ffio_wfourcc(pb, "url ");
1297  avio_wb32(pb, 1); /* version & flags */
1298 
1299  return 28;
1300 }
1301 
1302 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1303 {
1304  int64_t pos = avio_tell(pb);
1305  avio_wb32(pb, 0); /* size */
1306  ffio_wfourcc(pb, "stbl");
1307  mov_write_stsd_tag(pb, track);
1308  mov_write_stts_tag(pb, track);
1309  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1310  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1311  track->has_keyframes && track->has_keyframes < track->entry)
1312  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1313  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1315  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1316  track->flags & MOV_TRACK_CTTS)
1317  mov_write_ctts_tag(pb, track);
1318  mov_write_stsc_tag(pb, track);
1319  mov_write_stsz_tag(pb, track);
1320  mov_write_stco_tag(pb, track);
1321  return update_size(pb, pos);
1322 }
1323 
1325 {
1326  int64_t pos = avio_tell(pb);
1327  avio_wb32(pb, 0); /* size */
1328  ffio_wfourcc(pb, "dinf");
1329  mov_write_dref_tag(pb);
1330  return update_size(pb, pos);
1331 }
1332 
1334 {
1335  avio_wb32(pb, 12);
1336  ffio_wfourcc(pb, "nmhd");
1337  avio_wb32(pb, 0);
1338  return 12;
1339 }
1340 
1341 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1342 {
1343  int64_t pos = avio_tell(pb);
1344  const char *font = "Lucida Grande";
1345  avio_wb32(pb, 0); /* size */
1346  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1347  avio_wb32(pb, 0); /* version & flags */
1348  avio_wb16(pb, 0); /* text font */
1349  avio_wb16(pb, 0); /* text face */
1350  avio_wb16(pb, 12); /* text size */
1351  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1352  avio_wb16(pb, 0x0000); /* text color (red) */
1353  avio_wb16(pb, 0x0000); /* text color (green) */
1354  avio_wb16(pb, 0x0000); /* text color (blue) */
1355  avio_wb16(pb, 0xffff); /* background color (red) */
1356  avio_wb16(pb, 0xffff); /* background color (green) */
1357  avio_wb16(pb, 0xffff); /* background color (blue) */
1358  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1359  avio_write(pb, font, strlen(font)); /* font name */
1360  return update_size(pb, pos);
1361 }
1362 
1363 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1364 {
1365  int64_t pos = avio_tell(pb);
1366  avio_wb32(pb, 0); /* size */
1367  ffio_wfourcc(pb, "gmhd");
1368  avio_wb32(pb, 0x18); /* gmin size */
1369  ffio_wfourcc(pb, "gmin");/* generic media info */
1370  avio_wb32(pb, 0); /* version & flags */
1371  avio_wb16(pb, 0x40); /* graphics mode = */
1372  avio_wb16(pb, 0x8000); /* opColor (r?) */
1373  avio_wb16(pb, 0x8000); /* opColor (g?) */
1374  avio_wb16(pb, 0x8000); /* opColor (b?) */
1375  avio_wb16(pb, 0); /* balance */
1376  avio_wb16(pb, 0); /* reserved */
1377 
1378  /*
1379  * This special text atom is required for
1380  * Apple Quicktime chapters. The contents
1381  * don't appear to be documented, so the
1382  * bytes are copied verbatim.
1383  */
1384  if (track->tag != MKTAG('c','6','0','8')) {
1385  avio_wb32(pb, 0x2C); /* size */
1386  ffio_wfourcc(pb, "text");
1387  avio_wb16(pb, 0x01);
1388  avio_wb32(pb, 0x00);
1389  avio_wb32(pb, 0x00);
1390  avio_wb32(pb, 0x00);
1391  avio_wb32(pb, 0x01);
1392  avio_wb32(pb, 0x00);
1393  avio_wb32(pb, 0x00);
1394  avio_wb32(pb, 0x00);
1395  avio_wb32(pb, 0x00004000);
1396  avio_wb16(pb, 0x0000);
1397  }
1398 
1399  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1400  int64_t tmcd_pos = avio_tell(pb);
1401  avio_wb32(pb, 0); /* size */
1402  ffio_wfourcc(pb, "tmcd");
1403  mov_write_tcmi_tag(pb, track);
1404  update_size(pb, tmcd_pos);
1405  }
1406  return update_size(pb, pos);
1407 }
1408 
1410 {
1411  avio_wb32(pb, 16); /* size */
1412  ffio_wfourcc(pb, "smhd");
1413  avio_wb32(pb, 0); /* version & flags */
1414  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1415  avio_wb16(pb, 0); /* reserved */
1416  return 16;
1417 }
1418 
1420 {
1421  avio_wb32(pb, 0x14); /* size (always 0x14) */
1422  ffio_wfourcc(pb, "vmhd");
1423  avio_wb32(pb, 0x01); /* version & flags */
1424  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1425  return 0x14;
1426 }
1427 
1428 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1429 {
1430  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1431  int64_t pos = avio_tell(pb);
1432 
1433  if (!track) { /* no media --> data handler */
1434  hdlr = "dhlr";
1435  hdlr_type = "url ";
1436  descr = "DataHandler";
1437  } else {
1438  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1439  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1440  hdlr_type = "vide";
1441  descr = "VideoHandler";
1442  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1443  hdlr_type = "soun";
1444  descr = "SoundHandler";
1445  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1446  if (track->tag == MKTAG('c','6','0','8')) {
1447  hdlr_type = "clcp";
1448  descr = "ClosedCaptionHandler";
1449  } else {
1450  if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1451  else hdlr_type = "text";
1452  descr = "SubtitleHandler";
1453  }
1454  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1455  hdlr_type = "tmcd";
1456  descr = "TimeCodeHandler";
1457  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1458  hdlr_type = "hint";
1459  descr = "HintHandler";
1460  } else {
1461  hdlr = "dhlr";
1462  hdlr_type = "url ";
1463  descr = "DataHandler";
1464  }
1465  }
1466 
1467  avio_wb32(pb, 0); /* size */
1468  ffio_wfourcc(pb, "hdlr");
1469  avio_wb32(pb, 0); /* Version & flags */
1470  avio_write(pb, hdlr, 4); /* handler */
1471  ffio_wfourcc(pb, hdlr_type); /* handler type */
1472  avio_wb32(pb, 0); /* reserved */
1473  avio_wb32(pb, 0); /* reserved */
1474  avio_wb32(pb, 0); /* reserved */
1475  if (!track || track->mode == MODE_MOV)
1476  avio_w8(pb, strlen(descr)); /* pascal string */
1477  avio_write(pb, descr, strlen(descr)); /* handler description */
1478  if (track && track->mode != MODE_MOV)
1479  avio_w8(pb, 0); /* c string */
1480  return update_size(pb, pos);
1481 }
1482 
1484 {
1485  /* This atom must be present, but leaving the values at zero
1486  * seems harmless. */
1487  avio_wb32(pb, 28); /* size */
1488  ffio_wfourcc(pb, "hmhd");
1489  avio_wb32(pb, 0); /* version, flags */
1490  avio_wb16(pb, 0); /* maxPDUsize */
1491  avio_wb16(pb, 0); /* avgPDUsize */
1492  avio_wb32(pb, 0); /* maxbitrate */
1493  avio_wb32(pb, 0); /* avgbitrate */
1494  avio_wb32(pb, 0); /* reserved */
1495  return 28;
1496 }
1497 
1498 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1499 {
1500  int64_t pos = avio_tell(pb);
1501  avio_wb32(pb, 0); /* size */
1502  ffio_wfourcc(pb, "minf");
1503  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1504  mov_write_vmhd_tag(pb);
1505  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1506  mov_write_smhd_tag(pb);
1507  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1508  if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
1509  mov_write_gmhd_tag(pb, track);
1510  } else {
1511  mov_write_nmhd_tag(pb);
1512  }
1513  } else if (track->tag == MKTAG('t','m','c','d')) {
1514  mov_write_gmhd_tag(pb, track);
1515  } else if (track->tag == MKTAG('r','t','p',' ')) {
1516  mov_write_hmhd_tag(pb);
1517  }
1518  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1519  mov_write_hdlr_tag(pb, NULL);
1520  mov_write_dinf_tag(pb);
1521  mov_write_stbl_tag(pb, track);
1522  return update_size(pb, pos);
1523 }
1524 
1525 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1526 {
1527  int version = track->track_duration < INT32_MAX ? 0 : 1;
1528 
1529  if (track->mode == MODE_ISM)
1530  version = 1;
1531 
1532  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1533  ffio_wfourcc(pb, "mdhd");
1534  avio_w8(pb, version);
1535  avio_wb24(pb, 0); /* flags */
1536  if (version == 1) {
1537  avio_wb64(pb, track->time);
1538  avio_wb64(pb, track->time);
1539  } else {
1540  avio_wb32(pb, track->time); /* creation time */
1541  avio_wb32(pb, track->time); /* modification time */
1542  }
1543  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1544  if (!track->entry)
1545  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1546  else
1547  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1548  avio_wb16(pb, track->language); /* language */
1549  avio_wb16(pb, 0); /* reserved (quality) */
1550 
1551  if (version != 0 && track->mode == MODE_MOV) {
1552  av_log(NULL, AV_LOG_ERROR,
1553  "FATAL error, file duration too long for timebase, this file will not be\n"
1554  "playable with quicktime. Choose a different timebase or a different\n"
1555  "container format\n");
1556  }
1557 
1558  return 32;
1559 }
1560 
1561 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1562 {
1563  int64_t pos = avio_tell(pb);
1564  avio_wb32(pb, 0); /* size */
1565  ffio_wfourcc(pb, "mdia");
1566  mov_write_mdhd_tag(pb, track);
1567  mov_write_hdlr_tag(pb, track);
1568  mov_write_minf_tag(pb, track);
1569  return update_size(pb, pos);
1570 }
1571 
1572 /* transformation matrix
1573  |a b u|
1574  |c d v|
1575  |tx ty w| */
1576 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1577  int16_t d, int16_t tx, int16_t ty)
1578 {
1579  avio_wb32(pb, a << 16); /* 16.16 format */
1580  avio_wb32(pb, b << 16); /* 16.16 format */
1581  avio_wb32(pb, 0); /* u in 2.30 format */
1582  avio_wb32(pb, c << 16); /* 16.16 format */
1583  avio_wb32(pb, d << 16); /* 16.16 format */
1584  avio_wb32(pb, 0); /* v in 2.30 format */
1585  avio_wb32(pb, tx << 16); /* 16.16 format */
1586  avio_wb32(pb, ty << 16); /* 16.16 format */
1587  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1588 }
1589 
1590 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1591 {
1593  track->timescale, AV_ROUND_UP);
1594  int version = duration < INT32_MAX ? 0 : 1;
1595  int rotation = 0;
1596 
1597  if (track->mode == MODE_ISM)
1598  version = 1;
1599 
1600  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1601  ffio_wfourcc(pb, "tkhd");
1602  avio_w8(pb, version);
1603  avio_wb24(pb, track->secondary ? 0x2 : 0xf); /* flags (first track enabled) */
1604  if (version == 1) {
1605  avio_wb64(pb, track->time);
1606  avio_wb64(pb, track->time);
1607  } else {
1608  avio_wb32(pb, track->time); /* creation time */
1609  avio_wb32(pb, track->time); /* modification time */
1610  }
1611  avio_wb32(pb, track->track_id); /* track-id */
1612  avio_wb32(pb, 0); /* reserved */
1613  if (!track->entry)
1614  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1615  else
1616  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1617 
1618  avio_wb32(pb, 0); /* reserved */
1619  avio_wb32(pb, 0); /* reserved */
1620  avio_wb16(pb, 0); /* layer */
1621  avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1622  /* Volume, only for audio */
1623  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1624  avio_wb16(pb, 0x0100);
1625  else
1626  avio_wb16(pb, 0);
1627  avio_wb16(pb, 0); /* reserved */
1628 
1629  /* Matrix structure */
1630  if (st && st->metadata) {
1631  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1632  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1633  }
1634  if (rotation == 90) {
1635  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1636  } else if (rotation == 180) {
1637  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1638  } else if (rotation == 270) {
1639  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1640  } else {
1641  write_matrix(pb, 1, 0, 0, 1, 0, 0);
1642  }
1643  /* Track width and height, for visual only */
1644  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1645  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1646  if (track->mode == MODE_MOV) {
1647  avio_wb32(pb, track->enc->width << 16);
1648  avio_wb32(pb, track->height << 16);
1649  } else {
1650  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1651  if (!sample_aspect_ratio || track->height != track->enc->height)
1652  sample_aspect_ratio = 1;
1653  avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1654  avio_wb32(pb, track->height * 0x10000);
1655  }
1656  } else {
1657  avio_wb32(pb, 0);
1658  avio_wb32(pb, 0);
1659  }
1660  return 0x5c;
1661 }
1662 
1663 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1664 {
1666  track->enc->sample_aspect_ratio.den);
1667 
1668  int64_t pos = avio_tell(pb);
1669 
1670  avio_wb32(pb, 0); /* size */
1671  ffio_wfourcc(pb, "tapt");
1672 
1673  avio_wb32(pb, 20);
1674  ffio_wfourcc(pb, "clef");
1675  avio_wb32(pb, 0);
1676  avio_wb32(pb, width << 16);
1677  avio_wb32(pb, track->enc->height << 16);
1678 
1679  avio_wb32(pb, 20);
1680  ffio_wfourcc(pb, "prof");
1681  avio_wb32(pb, 0);
1682  avio_wb32(pb, width << 16);
1683  avio_wb32(pb, track->enc->height << 16);
1684 
1685  avio_wb32(pb, 20);
1686  ffio_wfourcc(pb, "enof");
1687  avio_wb32(pb, 0);
1688  avio_wb32(pb, track->enc->width << 16);
1689  avio_wb32(pb, track->enc->height << 16);
1690 
1691  return update_size(pb, pos);
1692 }
1693 
1694 // This box seems important for the psp playback ... without it the movie seems to hang
1695 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1696 {
1698  track->timescale, AV_ROUND_UP);
1699  int version = duration < INT32_MAX ? 0 : 1;
1700  int entry_size, entry_count, size;
1701  int64_t delay, start_ct = track->cluster[0].cts;
1702  delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1703  track->timescale, AV_ROUND_DOWN);
1704  version |= delay < INT32_MAX ? 0 : 1;
1705 
1706  entry_size = (version == 1) ? 20 : 12;
1707  entry_count = 1 + (delay > 0);
1708  size = 24 + entry_count * entry_size;
1709 
1710  /* write the atom data */
1711  avio_wb32(pb, size);
1712  ffio_wfourcc(pb, "edts");
1713  avio_wb32(pb, size - 8);
1714  ffio_wfourcc(pb, "elst");
1715  avio_w8(pb, version);
1716  avio_wb24(pb, 0); /* flags */
1717 
1718  avio_wb32(pb, entry_count);
1719  if (delay > 0) { /* add an empty edit to delay presentation */
1720  if (version == 1) {
1721  avio_wb64(pb, delay);
1722  avio_wb64(pb, -1);
1723  } else {
1724  avio_wb32(pb, delay);
1725  avio_wb32(pb, -1);
1726  }
1727  avio_wb32(pb, 0x00010000);
1728  } else {
1730  start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1731  duration += delay;
1732  }
1733 
1734  /* duration */
1735  if (version == 1) {
1736  avio_wb64(pb, duration);
1737  avio_wb64(pb, start_ct);
1738  } else {
1739  avio_wb32(pb, duration);
1740  avio_wb32(pb, start_ct);
1741  }
1742  avio_wb32(pb, 0x00010000);
1743  return size;
1744 }
1745 
1746 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1747 {
1748  avio_wb32(pb, 20); // size
1749  ffio_wfourcc(pb, "tref");
1750  avio_wb32(pb, 12); // size (subatom)
1751  avio_wl32(pb, track->tref_tag);
1752  avio_wb32(pb, track->tref_id);
1753  return 20;
1754 }
1755 
1756 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1758 {
1759  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1760  ffio_wfourcc(pb, "uuid");
1761  ffio_wfourcc(pb, "USMT");
1762  avio_wb32(pb, 0x21d24fce);
1763  avio_wb32(pb, 0xbb88695c);
1764  avio_wb32(pb, 0xfac9c740);
1765  avio_wb32(pb, 0x1c); // another size here!
1766  ffio_wfourcc(pb, "MTDT");
1767  avio_wb32(pb, 0x00010012);
1768  avio_wb32(pb, 0x0a);
1769  avio_wb32(pb, 0x55c40000);
1770  avio_wb32(pb, 0x1);
1771  avio_wb32(pb, 0x0);
1772  return 0x34;
1773 }
1774 
1775 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1776 {
1777  AVFormatContext *ctx = track->rtp_ctx;
1778  char buf[1000] = "";
1779  int len;
1780 
1781  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1782  NULL, NULL, 0, 0, ctx);
1783  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1784  len = strlen(buf);
1785 
1786  avio_wb32(pb, len + 24);
1787  ffio_wfourcc(pb, "udta");
1788  avio_wb32(pb, len + 16);
1789  ffio_wfourcc(pb, "hnti");
1790  avio_wb32(pb, len + 8);
1791  ffio_wfourcc(pb, "sdp ");
1792  avio_write(pb, buf, len);
1793  return len + 24;
1794 }
1795 
1797  MOVTrack *track, AVStream *st)
1798 {
1799  int64_t pos = avio_tell(pb);
1800  avio_wb32(pb, 0); /* size */
1801  ffio_wfourcc(pb, "trak");
1802  mov_write_tkhd_tag(pb, track, st);
1803  if (supports_edts(mov))
1804  mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1805  if (track->tref_tag)
1806  mov_write_tref_tag(pb, track);
1807  mov_write_mdia_tag(pb, track);
1808  if (track->mode == MODE_PSP)
1809  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1810  if (track->tag == MKTAG('r','t','p',' '))
1811  mov_write_udta_sdp(pb, track);
1812  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1813  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1814  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
1815  mov_write_tapt_tag(pb, track);
1816  }
1817  return update_size(pb, pos);
1818 }
1819 
1821 {
1822  int i, has_audio = 0, has_video = 0;
1823  int64_t pos = avio_tell(pb);
1824  int audio_profile = mov->iods_audio_profile;
1825  int video_profile = mov->iods_video_profile;
1826  for (i = 0; i < mov->nb_streams; i++) {
1827  if (mov->tracks[i].entry > 0) {
1828  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1829  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1830  }
1831  }
1832  if (audio_profile < 0)
1833  audio_profile = 0xFF - has_audio;
1834  if (video_profile < 0)
1835  video_profile = 0xFF - has_video;
1836  avio_wb32(pb, 0x0); /* size */
1837  ffio_wfourcc(pb, "iods");
1838  avio_wb32(pb, 0); /* version & flags */
1839  put_descr(pb, 0x10, 7);
1840  avio_wb16(pb, 0x004f);
1841  avio_w8(pb, 0xff);
1842  avio_w8(pb, 0xff);
1843  avio_w8(pb, audio_profile);
1844  avio_w8(pb, video_profile);
1845  avio_w8(pb, 0xff);
1846  return update_size(pb, pos);
1847 }
1848 
1849 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1850 {
1851  avio_wb32(pb, 0x20); /* size */
1852  ffio_wfourcc(pb, "trex");
1853  avio_wb32(pb, 0); /* version & flags */
1854  avio_wb32(pb, track->track_id); /* track ID */
1855  avio_wb32(pb, 1); /* default sample description index */
1856  avio_wb32(pb, 0); /* default sample duration */
1857  avio_wb32(pb, 0); /* default sample size */
1858  avio_wb32(pb, 0); /* default sample flags */
1859  return 0;
1860 }
1861 
1863 {
1864  int64_t pos = avio_tell(pb);
1865  int i;
1866  avio_wb32(pb, 0x0); /* size */
1867  ffio_wfourcc(pb, "mvex");
1868  for (i = 0; i < mov->nb_streams; i++)
1869  mov_write_trex_tag(pb, &mov->tracks[i]);
1870  return update_size(pb, pos);
1871 }
1872 
1874 {
1875  int max_track_id = 1, i;
1876  int64_t max_track_len_temp, max_track_len = 0;
1877  int version;
1878 
1879  for (i = 0; i < mov->nb_streams; i++) {
1880  if (mov->tracks[i].entry > 0) {
1881  max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1882  MOV_TIMESCALE,
1883  mov->tracks[i].timescale,
1884  AV_ROUND_UP);
1885  if (max_track_len < max_track_len_temp)
1886  max_track_len = max_track_len_temp;
1887  if (max_track_id < mov->tracks[i].track_id)
1888  max_track_id = mov->tracks[i].track_id;
1889  }
1890  }
1891 
1892  version = max_track_len < UINT32_MAX ? 0 : 1;
1893  (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1894  ffio_wfourcc(pb, "mvhd");
1895  avio_w8(pb, version);
1896  avio_wb24(pb, 0); /* flags */
1897  if (version == 1) {
1898  avio_wb64(pb, mov->time);
1899  avio_wb64(pb, mov->time);
1900  } else {
1901  avio_wb32(pb, mov->time); /* creation time */
1902  avio_wb32(pb, mov->time); /* modification time */
1903  }
1904  avio_wb32(pb, MOV_TIMESCALE);
1905  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1906 
1907  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1908  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1909  avio_wb16(pb, 0); /* reserved */
1910  avio_wb32(pb, 0); /* reserved */
1911  avio_wb32(pb, 0); /* reserved */
1912 
1913  /* Matrix structure */
1914  write_matrix(pb, 1, 0, 0, 1, 0, 0);
1915 
1916  avio_wb32(pb, 0); /* reserved (preview time) */
1917  avio_wb32(pb, 0); /* reserved (preview duration) */
1918  avio_wb32(pb, 0); /* reserved (poster time) */
1919  avio_wb32(pb, 0); /* reserved (selection time) */
1920  avio_wb32(pb, 0); /* reserved (selection duration) */
1921  avio_wb32(pb, 0); /* reserved (current time) */
1922  avio_wb32(pb, max_track_id + 1); /* Next track id */
1923  return 0x6c;
1924 }
1925 
1927  AVFormatContext *s)
1928 {
1929  avio_wb32(pb, 33); /* size */
1930  ffio_wfourcc(pb, "hdlr");
1931  avio_wb32(pb, 0);
1932  avio_wb32(pb, 0);
1933  ffio_wfourcc(pb, "mdir");
1934  ffio_wfourcc(pb, "appl");
1935  avio_wb32(pb, 0);
1936  avio_wb32(pb, 0);
1937  avio_w8(pb, 0);
1938  return 33;
1939 }
1940 
1941 /* helper function to write a data tag with the specified string as data */
1942 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1943 {
1944  if (long_style) {
1945  int size = 16 + strlen(data);
1946  avio_wb32(pb, size); /* size */
1947  ffio_wfourcc(pb, "data");
1948  avio_wb32(pb, 1);
1949  avio_wb32(pb, 0);
1950  avio_write(pb, data, strlen(data));
1951  return size;
1952  } else {
1953  if (!lang)
1954  lang = ff_mov_iso639_to_lang("und", 1);
1955  avio_wb16(pb, strlen(data)); /* string length */
1956  avio_wb16(pb, lang);
1957  avio_write(pb, data, strlen(data));
1958  return strlen(data) + 4;
1959  }
1960 }
1961 
1962 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1963  const char *value, int lang, int long_style)
1964 {
1965  int size = 0;
1966  if (value && value[0]) {
1967  int64_t pos = avio_tell(pb);
1968  avio_wb32(pb, 0); /* size */
1969  ffio_wfourcc(pb, name);
1970  mov_write_string_data_tag(pb, value, lang, long_style);
1971  size = update_size(pb, pos);
1972  }
1973  return size;
1974 }
1975 
1977  const char *name, const char *tag,
1978  int long_style)
1979 {
1980  int l, lang = 0, len, len2;
1981  AVDictionaryEntry *t, *t2 = NULL;
1982  char tag2[16];
1983 
1984  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1985  return 0;
1986 
1987  len = strlen(t->key);
1988  snprintf(tag2, sizeof(tag2), "%s-", tag);
1989  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1990  len2 = strlen(t2->key);
1991  if (len2 == len + 4 && !strcmp(t->value, t2->value)
1992  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1993  lang = l;
1994  break;
1995  }
1996  }
1997  return mov_write_string_tag(pb, name, t->value, lang, long_style);
1998 }
1999 
2000 /* iTunes bpm number */
2002 {
2003  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2004  int size = 0, tmpo = t ? atoi(t->value) : 0;
2005  if (tmpo) {
2006  size = 26;
2007  avio_wb32(pb, size);
2008  ffio_wfourcc(pb, "tmpo");
2009  avio_wb32(pb, size-8); /* size */
2010  ffio_wfourcc(pb, "data");
2011  avio_wb32(pb, 0x15); //type specifier
2012  avio_wb32(pb, 0);
2013  avio_wb16(pb, tmpo); // data
2014  }
2015  return size;
2016 }
2017 
2018 /* iTunes track number */
2020  AVFormatContext *s)
2021 {
2022  AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2023  int size = 0, track = t ? atoi(t->value) : 0;
2024  if (track) {
2025  avio_wb32(pb, 32); /* size */
2026  ffio_wfourcc(pb, "trkn");
2027  avio_wb32(pb, 24); /* size */
2028  ffio_wfourcc(pb, "data");
2029  avio_wb32(pb, 0); // 8 bytes empty
2030  avio_wb32(pb, 0);
2031  avio_wb16(pb, 0); // empty
2032  avio_wb16(pb, track); // track number
2033  avio_wb16(pb, 0); // total track number
2034  avio_wb16(pb, 0); // empty
2035  size = 32;
2036  }
2037  return size;
2038 }
2039 
2041  const char *name, const char *tag,
2042  int len)
2043 {
2044  AVDictionaryEntry *t = NULL;
2045  uint8_t num;
2046  int size = 24 + len;
2047 
2048  if (len != 1 && len != 4)
2049  return -1;
2050 
2051  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2052  return 0;
2053  num = atoi(t->value);
2054 
2055  avio_wb32(pb, size);
2056  ffio_wfourcc(pb, name);
2057  avio_wb32(pb, size - 8);
2058  ffio_wfourcc(pb, "data");
2059  avio_wb32(pb, 0x15);
2060  avio_wb32(pb, 0);
2061  if (len==4) avio_wb32(pb, num);
2062  else avio_w8 (pb, num);
2063 
2064  return size;
2065 }
2066 
2067 /* iTunes meta data list */
2069  AVFormatContext *s)
2070 {
2071  int64_t pos = avio_tell(pb);
2072  avio_wb32(pb, 0); /* size */
2073  ffio_wfourcc(pb, "ilst");
2074  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2075  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2076  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2077  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2078  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2079  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2080  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2081  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2082  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2083  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2084  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2085  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2086  mov_write_string_metadata(s, pb, "desc", "description",1);
2087  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2088  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2089  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2090  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2091  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2092  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2093  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2094  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2095  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2096  mov_write_trkn_tag(pb, mov, s);
2097  mov_write_tmpo_tag(pb, s);
2098  return update_size(pb, pos);
2099 }
2100 
2101 /* iTunes meta data tag */
2103  AVFormatContext *s)
2104 {
2105  int size = 0;
2106  int64_t pos = avio_tell(pb);
2107  avio_wb32(pb, 0); /* size */
2108  ffio_wfourcc(pb, "meta");
2109  avio_wb32(pb, 0);
2110  mov_write_itunes_hdlr_tag(pb, mov, s);
2111  mov_write_ilst_tag(pb, mov, s);
2112  size = update_size(pb, pos);
2113  return size;
2114 }
2115 
2116 static int utf8len(const uint8_t *b)
2117 {
2118  int len = 0;
2119  int val;
2120  while (*b) {
2121  GET_UTF8(val, *b++, return -1;)
2122  len++;
2123  }
2124  return len;
2125 }
2126 
2127 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2128 {
2129  int val;
2130  while (*b) {
2131  GET_UTF8(val, *b++, return -1;)
2132  avio_wb16(pb, val);
2133  }
2134  avio_wb16(pb, 0x00);
2135  return 0;
2136 }
2137 
2138 static uint16_t language_code(const char *str)
2139 {
2140  return (((str[0] - 0x60) & 0x1F) << 10) +
2141  (((str[1] - 0x60) & 0x1F) << 5) +
2142  (( str[2] - 0x60) & 0x1F);
2143 }
2144 
2146  const char *tag, const char *str)
2147 {
2148  int64_t pos = avio_tell(pb);
2149  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2150  if (!t || !utf8len(t->value))
2151  return 0;
2152  avio_wb32(pb, 0); /* size */
2153  ffio_wfourcc(pb, tag); /* type */
2154  avio_wb32(pb, 0); /* version + flags */
2155  if (!strcmp(tag, "yrrc"))
2156  avio_wb16(pb, atoi(t->value));
2157  else {
2158  avio_wb16(pb, language_code("eng")); /* language */
2159  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2160  if (!strcmp(tag, "albm") &&
2161  (t = av_dict_get(s->metadata, "track", NULL, 0)))
2162  avio_w8(pb, atoi(t->value));
2163  }
2164  return update_size(pb, pos);
2165 }
2166 
2168 {
2169  int64_t pos = avio_tell(pb);
2170  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2171 
2172  avio_wb32(pb, 0); // size
2173  ffio_wfourcc(pb, "chpl");
2174  avio_wb32(pb, 0x01000000); // version + flags
2175  avio_wb32(pb, 0); // unknown
2176  avio_w8(pb, nb_chapters);
2177 
2178  for (i = 0; i < nb_chapters; i++) {
2179  AVChapter *c = s->chapters[i];
2181  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2182 
2183  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2184  int len = FFMIN(strlen(t->value), 255);
2185  avio_w8(pb, len);
2186  avio_write(pb, t->value, len);
2187  } else
2188  avio_w8(pb, 0);
2189  }
2190  return update_size(pb, pos);
2191 }
2192 
2194  AVFormatContext *s)
2195 {
2196  AVIOContext *pb_buf;
2197  int i, ret, size;
2198  uint8_t *buf;
2199 
2200  for (i = 0; i < s->nb_streams; i++)
2201  if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
2202  return 0;
2203  }
2204 
2205  ret = avio_open_dyn_buf(&pb_buf);
2206  if (ret < 0)
2207  return ret;
2208 
2209  if (mov->mode & MODE_3GP) {
2210  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2211  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2212  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2213  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2214  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2215  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2216  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2217  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2218  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2219  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2220  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2221  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2222  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2223  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2224  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2225  // currently ignored by mov.c
2226  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2227  // add support for libquicktime, this atom is also actually read by mov.c
2228  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2229  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2230  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2231  } else {
2232  /* iTunes meta data */
2233  mov_write_meta_tag(pb_buf, mov, s);
2234  }
2235 
2236  if (s->nb_chapters)
2237  mov_write_chpl_tag(pb_buf, s);
2238 
2239  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2240  avio_wb32(pb, size + 8);
2241  ffio_wfourcc(pb, "udta");
2242  avio_write(pb, buf, size);
2243  }
2244  av_free(buf);
2245 
2246  return 0;
2247 }
2248 
2250  const char *str, const char *lang, int type)
2251 {
2252  int len = utf8len(str) + 1;
2253  if (len <= 0)
2254  return;
2255  avio_wb16(pb, len * 2 + 10); /* size */
2256  avio_wb32(pb, type); /* type */
2257  avio_wb16(pb, language_code(lang)); /* language */
2258  avio_wb16(pb, 0x01); /* ? */
2259  ascii_to_wc(pb, str);
2260 }
2261 
2263 {
2264  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2265  int64_t pos, pos2;
2266 
2267  if (title) {
2268  pos = avio_tell(pb);
2269  avio_wb32(pb, 0); /* size placeholder*/
2270  ffio_wfourcc(pb, "uuid");
2271  ffio_wfourcc(pb, "USMT");
2272  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2273  avio_wb32(pb, 0xbb88695c);
2274  avio_wb32(pb, 0xfac9c740);
2275 
2276  pos2 = avio_tell(pb);
2277  avio_wb32(pb, 0); /* size placeholder*/
2278  ffio_wfourcc(pb, "MTDT");
2279  avio_wb16(pb, 4);
2280 
2281  // ?
2282  avio_wb16(pb, 0x0C); /* size */
2283  avio_wb32(pb, 0x0B); /* type */
2284  avio_wb16(pb, language_code("und")); /* language */
2285  avio_wb16(pb, 0x0); /* ? */
2286  avio_wb16(pb, 0x021C); /* data */
2287 
2288  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2289  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2290  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2291 
2292  update_size(pb, pos2);
2293  return update_size(pb, pos);
2294  }
2295 
2296  return 0;
2297 }
2298 
2299 static void build_chunks(MOVTrack *trk)
2300 {
2301  int i;
2302  MOVIentry *chunk = &trk->cluster[0];
2303  uint64_t chunkSize = chunk->size;
2304  chunk->chunkNum = 1;
2305  if (trk->chunkCount)
2306  return;
2307  trk->chunkCount = 1;
2308  for (i = 1; i<trk->entry; i++){
2309  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2310  chunkSize + trk->cluster[i].size < (1<<20)){
2311  chunkSize += trk->cluster[i].size;
2312  chunk->samples_in_chunk += trk->cluster[i].entries;
2313  } else {
2314  trk->cluster[i].chunkNum = chunk->chunkNum+1;
2315  chunk=&trk->cluster[i];
2316  chunkSize = chunk->size;
2317  trk->chunkCount++;
2318  }
2319  }
2320 }
2321 
2323  AVFormatContext *s)
2324 {
2325  int i;
2326  int64_t pos = avio_tell(pb);
2327  int not_first[AVMEDIA_TYPE_NB]={0};
2328  avio_wb32(pb, 0); /* size placeholder*/
2329  ffio_wfourcc(pb, "moov");
2330 
2331  for (i = 0; i < mov->nb_streams; i++) {
2332  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2333  continue;
2334 
2335  mov->tracks[i].time = mov->time;
2336  mov->tracks[i].track_id = i + 1;
2337 
2338  if (mov->tracks[i].entry)
2339  build_chunks(&mov->tracks[i]);
2340  }
2341 
2342  if (mov->chapter_track)
2343  for (i = 0; i < s->nb_streams; i++) {
2344  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2345  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2346  }
2347  for (i = 0; i < mov->nb_streams; i++) {
2348  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2349  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2350  mov->tracks[i].tref_id =
2351  mov->tracks[mov->tracks[i].src_track].track_id;
2352  }
2353  }
2354  for (i = 0; i < mov->nb_streams; i++) {
2355  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2356  int src_trk = mov->tracks[i].src_track;
2357  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2358  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2359  mov->tracks[i].track_duration = mov->tracks[src_trk].track_duration;
2360  }
2361  }
2362 
2363  mov_write_mvhd_tag(pb, mov);
2364  if (mov->mode != MODE_MOV && !mov->iods_skip)
2365  mov_write_iods_tag(pb, mov);
2366  for (i = 0; i < mov->nb_streams; i++) {
2367  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2368  if (i < s->nb_streams){
2369  int codec_type= s->streams[i]->codec->codec_type;
2370  if (codec_type==AVMEDIA_TYPE_AUDIO || codec_type==AVMEDIA_TYPE_SUBTITLE){
2371  mov->tracks[i].secondary= not_first[codec_type];
2372  not_first[codec_type]= 1;
2373  }
2374  }
2375  mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2376  }
2377  }
2378  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2379  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2380 
2381  if (mov->mode == MODE_PSP)
2382  mov_write_uuidusmt_tag(pb, s);
2383  else
2384  mov_write_udta_tag(pb, mov, s);
2385 
2386  return update_size(pb, pos);
2387 }
2388 
2389 static void param_write_int(AVIOContext *pb, const char *name, int value)
2390 {
2391  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2392 }
2393 
2394 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2395 {
2396  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2397 }
2398 
2399 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2400 {
2401  char buf[150];
2402  len = FFMIN(sizeof(buf) / 2 - 1, len);
2403  ff_data_to_hex(buf, value, len, 0);
2404  buf[2 * len] = '\0';
2405  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2406 }
2407 
2409 {
2410  int64_t pos = avio_tell(pb);
2411  int i;
2412  const uint8_t uuid[] = {
2413  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2414  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2415  };
2416 
2417  avio_wb32(pb, 0);
2418  ffio_wfourcc(pb, "uuid");
2419  avio_write(pb, uuid, sizeof(uuid));
2420  avio_wb32(pb, 0);
2421 
2422  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2423  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2424  avio_printf(pb, "<head>\n");
2425  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2427  avio_printf(pb, "</head>\n");
2428  avio_printf(pb, "<body>\n");
2429  avio_printf(pb, "<switch>\n");
2430  for (i = 0; i < mov->nb_streams; i++) {
2431  MOVTrack *track = &mov->tracks[i];
2432  const char *type;
2433  /* track->track_id is initialized in write_moov, and thus isn't known
2434  * here yet */
2435  int track_id = i + 1;
2436 
2437  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2438  type = "video";
2439  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2440  type = "audio";
2441  } else {
2442  continue;
2443  }
2444  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2445  track->enc->bit_rate);
2446  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2447  param_write_int(pb, "trackID", track_id);
2448  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2449  if (track->enc->codec_id == AV_CODEC_ID_H264) {
2450  uint8_t *ptr;
2451  int size = track->enc->extradata_size;
2452  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2453  &size)) {
2454  param_write_hex(pb, "CodecPrivateData",
2455  ptr ? ptr : track->enc->extradata,
2456  size);
2457  av_free(ptr);
2458  }
2459  param_write_string(pb, "FourCC", "H264");
2460  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2461  param_write_string(pb, "FourCC", "WVC1");
2462  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2463  track->enc->extradata_size);
2464  }
2465  param_write_int(pb, "MaxWidth", track->enc->width);
2466  param_write_int(pb, "MaxHeight", track->enc->height);
2467  param_write_int(pb, "DisplayWidth", track->enc->width);
2468  param_write_int(pb, "DisplayHeight", track->enc->height);
2469  } else {
2470  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2471  param_write_string(pb, "FourCC", "AACL");
2472  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2473  param_write_string(pb, "FourCC", "WMAP");
2474  }
2475  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2476  track->enc->extradata_size);
2478  track->enc->codec_id));
2479  param_write_int(pb, "Channels", track->enc->channels);
2480  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2481  param_write_int(pb, "BitsPerSample", 16);
2482  param_write_int(pb, "PacketSize", track->enc->block_align ?
2483  track->enc->block_align : 4);
2484  }
2485  avio_printf(pb, "</%s>\n", type);
2486  }
2487  avio_printf(pb, "</switch>\n");
2488  avio_printf(pb, "</body>\n");
2489  avio_printf(pb, "</smil>\n");
2490 
2491  return update_size(pb, pos);
2492 }
2493 
2495 {
2496  avio_wb32(pb, 16);
2497  ffio_wfourcc(pb, "mfhd");
2498  avio_wb32(pb, 0);
2499  avio_wb32(pb, mov->fragments);
2500  return 0;
2501 }
2502 
2503 static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
2504  int64_t moof_offset)
2505 {
2506  int64_t pos = avio_tell(pb);
2509  if (!track->entry) {
2510  flags |= MOV_TFHD_DURATION_IS_EMPTY;
2511  } else {
2512  flags |= MOV_TFHD_DEFAULT_FLAGS;
2513  }
2514 
2515  /* Don't set a default sample size, the silverlight player refuses
2516  * to play files with that set. Don't set a default sample duration,
2517  * WMP freaks out if it is set. Don't set a base data offset, PIFF
2518  * file format says it MUST NOT be set. */
2519  if (track->mode == MODE_ISM)
2522 
2523  avio_wb32(pb, 0); /* size placeholder */
2524  ffio_wfourcc(pb, "tfhd");
2525  avio_w8(pb, 0); /* version */
2526  avio_wb24(pb, flags);
2527 
2528  avio_wb32(pb, track->track_id); /* track-id */
2529  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2530  avio_wb64(pb, moof_offset);
2531  if (flags & MOV_TFHD_DEFAULT_DURATION) {
2532  track->default_duration = get_cluster_duration(track, 0);
2533  avio_wb32(pb, track->default_duration);
2534  }
2535  if (flags & MOV_TFHD_DEFAULT_SIZE) {
2536  track->default_size = track->entry ? track->cluster[0].size : 1;
2537  avio_wb32(pb, track->default_size);
2538  } else
2539  track->default_size = -1;
2540 
2541  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2542  track->default_sample_flags =
2543  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2546  avio_wb32(pb, track->default_sample_flags);
2547  }
2548 
2549  return update_size(pb, pos);
2550 }
2551 
2552 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2553 {
2556 }
2557 
2558 static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track)
2559 {
2560  int64_t pos = avio_tell(pb);
2561  uint32_t flags = MOV_TRUN_DATA_OFFSET;
2562  int i;
2563 
2564  for (i = 0; i < track->entry; i++) {
2565  if (get_cluster_duration(track, i) != track->default_duration)
2566  flags |= MOV_TRUN_SAMPLE_DURATION;
2567  if (track->cluster[i].size != track->default_size)
2568  flags |= MOV_TRUN_SAMPLE_SIZE;
2569  if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2570  flags |= MOV_TRUN_SAMPLE_FLAGS;
2571  }
2572  if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2573  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2574  if (track->flags & MOV_TRACK_CTTS)
2575  flags |= MOV_TRUN_SAMPLE_CTS;
2576 
2577  avio_wb32(pb, 0); /* size placeholder */
2578  ffio_wfourcc(pb, "trun");
2579  avio_w8(pb, 0); /* version */
2580  avio_wb24(pb, flags);
2581 
2582  avio_wb32(pb, track->entry); /* sample count */
2583  track->moof_size_offset = avio_tell(pb);
2584  avio_wb32(pb, 0); /* data offset */
2585  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2586  avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2587 
2588  for (i = 0; i < track->entry; i++) {
2589  if (flags & MOV_TRUN_SAMPLE_DURATION)
2590  avio_wb32(pb, get_cluster_duration(track, i));
2591  if (flags & MOV_TRUN_SAMPLE_SIZE)
2592  avio_wb32(pb, track->cluster[i].size);
2593  if (flags & MOV_TRUN_SAMPLE_FLAGS)
2594  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2595  if (flags & MOV_TRUN_SAMPLE_CTS)
2596  avio_wb32(pb, track->cluster[i].cts);
2597  }
2598 
2599  return update_size(pb, pos);
2600 }
2601 
2602 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2603 {
2604  int64_t pos = avio_tell(pb);
2605  const uint8_t uuid[] = {
2606  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2607  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2608  };
2609 
2610  avio_wb32(pb, 0); /* size placeholder */
2611  ffio_wfourcc(pb, "uuid");
2612  avio_write(pb, uuid, sizeof(uuid));
2613  avio_w8(pb, 1);
2614  avio_wb24(pb, 0);
2615  avio_wb64(pb, track->frag_start);
2616  avio_wb64(pb, track->start_dts + track->track_duration -
2617  track->cluster[0].dts);
2618 
2619  return update_size(pb, pos);
2620 }
2621 
2623  MOVTrack *track, int entry)
2624 {
2625  int n = track->nb_frag_info - 1 - entry, i;
2626  int size = 8 + 16 + 4 + 1 + 16*n;
2627  const uint8_t uuid[] = {
2628  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2629  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2630  };
2631 
2632  if (entry < 0)
2633  return 0;
2634 
2635  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2636  avio_wb32(pb, size);
2637  ffio_wfourcc(pb, "uuid");
2638  avio_write(pb, uuid, sizeof(uuid));
2639  avio_w8(pb, 1);
2640  avio_wb24(pb, 0);
2641  avio_w8(pb, n);
2642  for (i = 0; i < n; i++) {
2643  int index = entry + 1 + i;
2644  avio_wb64(pb, track->frag_info[index].time);
2645  avio_wb64(pb, track->frag_info[index].duration);
2646  }
2647  if (n < mov->ism_lookahead) {
2648  int free_size = 16 * (mov->ism_lookahead - n);
2649  avio_wb32(pb, free_size);
2650  ffio_wfourcc(pb, "free");
2651  ffio_fill(pb, 0, free_size - 8);
2652  }
2653 
2654  return 0;
2655 }
2656 
2658  MOVTrack *track)
2659 {
2660  int64_t pos = avio_tell(pb);
2661  int i;
2662  for (i = 0; i < mov->ism_lookahead; i++) {
2663  /* Update the tfrf tag for the last ism_lookahead fragments,
2664  * nb_frag_info - 1 is the next fragment to be written. */
2665  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2666  }
2667  avio_seek(pb, pos, SEEK_SET);
2668  return 0;
2669 }
2670 
2672  MOVTrack *track, int64_t moof_offset)
2673 {
2674  int64_t pos = avio_tell(pb);
2675  avio_wb32(pb, 0); /* size placeholder */
2676  ffio_wfourcc(pb, "traf");
2677 
2678  mov_write_tfhd_tag(pb, track, moof_offset);
2679  mov_write_trun_tag(pb, track);
2680  if (mov->mode == MODE_ISM) {
2681  mov_write_tfxd_tag(pb, track);
2682 
2683  if (mov->ism_lookahead) {
2684  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2685 
2686  track->tfrf_offset = avio_tell(pb);
2687  avio_wb32(pb, 8 + size);
2688  ffio_wfourcc(pb, "free");
2689  for (i = 0; i < size; i++)
2690  avio_w8(pb, 0);
2691  }
2692  }
2693 
2694  return update_size(pb, pos);
2695 }
2696 
2697 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2698 {
2699  int64_t pos = avio_tell(pb), end;
2700  int i, moof_size;
2701 
2702  avio_wb32(pb, 0); /* size placeholder */
2703  ffio_wfourcc(pb, "moof");
2704 
2705  mov_write_mfhd_tag(pb, mov);
2706  for (i = 0; i < mov->nb_streams; i++) {
2707  MOVTrack *track = &mov->tracks[i];
2708  if (tracks >= 0 && i != tracks)
2709  continue;
2710  if (!track->entry)
2711  continue;
2712  mov_write_traf_tag(pb, mov, track, pos);
2713  }
2714 
2715  end = avio_tell(pb);
2716  moof_size = end - pos;
2717  for (i = 0; i < mov->nb_streams; i++) {
2718  MOVTrack *track = &mov->tracks[i];
2719  if (tracks >= 0 && i != tracks)
2720  continue;
2721  if (!track->entry)
2722  continue;
2723  avio_seek(pb, mov->tracks[i].moof_size_offset, SEEK_SET);
2724  avio_wb32(pb, moof_size + 8 + mov->tracks[i].data_offset);
2725  }
2726  avio_seek(pb, end, SEEK_SET);
2727 
2728  return update_size(pb, pos);
2729 }
2730 
2731 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2732 {
2733  int64_t pos = avio_tell(pb);
2734  int i;
2735 
2736  avio_wb32(pb, 0); /* size placeholder */
2737  ffio_wfourcc(pb, "tfra");
2738  avio_w8(pb, 1); /* version */
2739  avio_wb24(pb, 0);
2740 
2741  avio_wb32(pb, track->track_id);
2742  avio_wb32(pb, 0); /* length of traf/trun/sample num */
2743  avio_wb32(pb, track->nb_frag_info);
2744  for (i = 0; i < track->nb_frag_info; i++) {
2745  avio_wb64(pb, track->frag_info[i].time);
2746  avio_wb64(pb, track->frag_info[i].offset);
2747  avio_w8(pb, 1); /* traf number */
2748  avio_w8(pb, 1); /* trun number */
2749  avio_w8(pb, 1); /* sample number */
2750  }
2751 
2752  return update_size(pb, pos);
2753 }
2754 
2756 {
2757  int64_t pos = avio_tell(pb);
2758  int i;
2759 
2760  avio_wb32(pb, 0); /* size placeholder */
2761  ffio_wfourcc(pb, "mfra");
2762  /* An empty mfra atom is enough to indicate to the publishing point that
2763  * the stream has ended. */
2764  if (mov->flags & FF_MOV_FLAG_ISML)
2765  return update_size(pb, pos);
2766 
2767  for (i = 0; i < mov->nb_streams; i++) {
2768  MOVTrack *track = &mov->tracks[i];
2769  if (track->nb_frag_info)
2770  mov_write_tfra_tag(pb, track);
2771  }
2772 
2773  avio_wb32(pb, 16);
2774  ffio_wfourcc(pb, "mfro");
2775  avio_wb32(pb, 0); /* version + flags */
2776  avio_wb32(pb, avio_tell(pb) + 4 - pos);
2777 
2778  return update_size(pb, pos);
2779 }
2780 
2782 {
2783  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2784  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2785 
2786  mov->mdat_pos = avio_tell(pb);
2787  avio_wb32(pb, 0); /* size placeholder*/
2788  ffio_wfourcc(pb, "mdat");
2789  return 0;
2790 }
2791 
2792 /* TODO: This needs to be more general */
2794 {
2795  MOVMuxContext *mov = s->priv_data;
2796  int64_t pos = avio_tell(pb);
2797  int has_h264 = 0, has_video = 0;
2798  int minor = 0x200;
2799  int i;
2800 
2801  for (i = 0; i < s->nb_streams; i++) {
2802  AVStream *st = s->streams[i];
2803  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2804  has_video = 1;
2805  if (st->codec->codec_id == AV_CODEC_ID_H264)
2806  has_h264 = 1;
2807  }
2808 
2809  avio_wb32(pb, 0); /* size */
2810  ffio_wfourcc(pb, "ftyp");
2811 
2812  if (mov->mode == MODE_3GP) {
2813  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2814  minor = has_h264 ? 0x100 : 0x200;
2815  } else if (mov->mode & MODE_3G2) {
2816  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2817  minor = has_h264 ? 0x20000 : 0x10000;
2818  } else if (mov->mode == MODE_PSP)
2819  ffio_wfourcc(pb, "MSNV");
2820  else if (mov->mode == MODE_MP4)
2821  ffio_wfourcc(pb, "isom");
2822  else if (mov->mode == MODE_IPOD)
2823  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2824  else if (mov->mode == MODE_ISM)
2825  ffio_wfourcc(pb, "isml");
2826  else if (mov->mode == MODE_F4V)
2827  ffio_wfourcc(pb, "f4v ");
2828  else
2829  ffio_wfourcc(pb, "qt ");
2830 
2831  avio_wb32(pb, minor);
2832 
2833  if (mov->mode == MODE_MOV)
2834  ffio_wfourcc(pb, "qt ");
2835  else if (mov->mode == MODE_ISM) {
2836  ffio_wfourcc(pb, "piff");
2837  ffio_wfourcc(pb, "iso2");
2838  } else {
2839  ffio_wfourcc(pb, "isom");
2840  ffio_wfourcc(pb, "iso2");
2841  if (has_h264)
2842  ffio_wfourcc(pb, "avc1");
2843  }
2844 
2845  if (mov->mode == MODE_3GP)
2846  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2847  else if (mov->mode & MODE_3G2)
2848  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2849  else if (mov->mode == MODE_PSP)
2850  ffio_wfourcc(pb, "MSNV");
2851  else if (mov->mode == MODE_MP4)
2852  ffio_wfourcc(pb, "mp41");
2853  return update_size(pb, pos);
2854 }
2855 
2857 {
2858  AVCodecContext *video_codec = s->streams[0]->codec;
2859  AVCodecContext *audio_codec = s->streams[1]->codec;
2860  int audio_rate = audio_codec->sample_rate;
2861  int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
2862  int audio_kbitrate = audio_codec->bit_rate / 1000;
2863  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2864 
2865  avio_wb32(pb, 0x94); /* size */
2866  ffio_wfourcc(pb, "uuid");
2867  ffio_wfourcc(pb, "PROF");
2868 
2869  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2870  avio_wb32(pb, 0xbb88695c);
2871  avio_wb32(pb, 0xfac9c740);
2872 
2873  avio_wb32(pb, 0x0); /* ? */
2874  avio_wb32(pb, 0x3); /* 3 sections ? */
2875 
2876  avio_wb32(pb, 0x14); /* size */
2877  ffio_wfourcc(pb, "FPRF");
2878  avio_wb32(pb, 0x0); /* ? */
2879  avio_wb32(pb, 0x0); /* ? */
2880  avio_wb32(pb, 0x0); /* ? */
2881 
2882  avio_wb32(pb, 0x2c); /* size */
2883  ffio_wfourcc(pb, "APRF"); /* audio */
2884  avio_wb32(pb, 0x0);
2885  avio_wb32(pb, 0x2); /* TrackID */
2886  ffio_wfourcc(pb, "mp4a");
2887  avio_wb32(pb, 0x20f);
2888  avio_wb32(pb, 0x0);
2889  avio_wb32(pb, audio_kbitrate);
2890  avio_wb32(pb, audio_kbitrate);
2891  avio_wb32(pb, audio_rate);
2892  avio_wb32(pb, audio_codec->channels);
2893 
2894  avio_wb32(pb, 0x34); /* size */
2895  ffio_wfourcc(pb, "VPRF"); /* video */
2896  avio_wb32(pb, 0x0);
2897  avio_wb32(pb, 0x1); /* TrackID */
2898  if (video_codec->codec_id == AV_CODEC_ID_H264) {
2899  ffio_wfourcc(pb, "avc1");
2900  avio_wb16(pb, 0x014D);
2901  avio_wb16(pb, 0x0015);
2902  } else {
2903  ffio_wfourcc(pb, "mp4v");
2904  avio_wb16(pb, 0x0000);
2905  avio_wb16(pb, 0x0103);
2906  }
2907  avio_wb32(pb, 0x0);
2908  avio_wb32(pb, video_kbitrate);
2909  avio_wb32(pb, video_kbitrate);
2910  avio_wb32(pb, frame_rate);
2911  avio_wb32(pb, frame_rate);
2912  avio_wb16(pb, video_codec->width);
2913  avio_wb16(pb, video_codec->height);
2914  avio_wb32(pb, 0x010001); /* ? */
2915 }
2916 
2917 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2918 {
2919  uint32_t c = -1;
2920  int i, closed_gop = 0;
2921 
2922  for (i = 0; i < pkt->size - 4; i++) {
2923  c = (c << 8) + pkt->data[i];
2924  if (c == 0x1b8) { // gop
2925  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2926  } else if (c == 0x100) { // pic
2927  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2928  if (!temp_ref || closed_gop) // I picture is not reordered
2929  *flags = MOV_SYNC_SAMPLE;
2930  else
2931  *flags = MOV_PARTIAL_SYNC_SAMPLE;
2932  break;
2933  }
2934  }
2935  return 0;
2936 }
2937 
2938 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2939 {
2940  const uint8_t *start, *next, *end = pkt->data + pkt->size;
2941  int seq = 0, entry = 0;
2942  int key = pkt->flags & AV_PKT_FLAG_KEY;
2943  start = find_next_marker(pkt->data, end);
2944  for (next = start; next < end; start = next) {
2945  next = find_next_marker(start + 4, end);
2946  switch (AV_RB32(start)) {
2947  case VC1_CODE_SEQHDR:
2948  seq = 1;
2949  break;
2950  case VC1_CODE_ENTRYPOINT:
2951  entry = 1;
2952  break;
2953  case VC1_CODE_SLICE:
2954  trk->vc1_info.slices = 1;
2955  break;
2956  }
2957  }
2958  if (!trk->entry && !fragment) {
2959  /* First packet in first fragment */
2960  trk->vc1_info.first_packet_seq = seq;
2961  trk->vc1_info.first_packet_entry = entry;
2962  } else if ((seq && !trk->vc1_info.packet_seq) ||
2963  (entry && !trk->vc1_info.packet_entry)) {
2964  int i;
2965  for (i = 0; i < trk->entry; i++)
2966  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2967  trk->has_keyframes = 0;
2968  if (seq)
2969  trk->vc1_info.packet_seq = 1;
2970  if (entry)
2971  trk->vc1_info.packet_entry = 1;
2972  if (!fragment) {
2973  /* First fragment */
2974  if ((!seq || trk->vc1_info.first_packet_seq) &&
2975  (!entry || trk->vc1_info.first_packet_entry)) {
2976  /* First packet had the same headers as this one, readd the
2977  * sync sample flag. */
2978  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2979  trk->has_keyframes = 1;
2980  }
2981  }
2982  }
2983  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2984  key = seq && entry;
2985  else if (trk->vc1_info.packet_seq)
2986  key = seq;
2987  else if (trk->vc1_info.packet_entry)
2988  key = entry;
2989  if (key) {
2990  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2991  trk->has_keyframes++;
2992  }
2993 }
2994 
2996 {
2997  int ret;
2998  uint8_t *buf;
2999  AVIOContext *moov_buf;
3000  MOVMuxContext *mov = s->priv_data;
3001 
3002  if ((ret = avio_open_dyn_buf(&moov_buf)) < 0)
3003  return ret;
3004  mov_write_moov_tag(moov_buf, mov, s);
3005  ret = avio_close_dyn_buf(moov_buf, &buf);
3006  av_free(buf);
3007  return ret;
3008 }
3009 
3011 {
3012  MOVMuxContext *mov = s->priv_data;
3013  int i, first_track = -1;
3014  int64_t mdat_size = 0;
3015 
3016  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3017  return 0;
3018 
3019  if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3020  int64_t pos = avio_tell(s->pb);
3021  uint8_t *buf;
3022  int buf_size, moov_size;
3023 
3024  for (i = 0; i < mov->nb_streams; i++)
3025  if (!mov->tracks[i].entry)
3026  break;
3027  /* Don't write the initial moov unless all tracks have data */
3028  if (i < mov->nb_streams)
3029  return 0;
3030 
3031  moov_size = get_moov_size(s);
3032  for (i = 0; i < mov->nb_streams; i++)
3033  mov->tracks[i].data_offset = pos + moov_size + 8;
3034 
3035  mov_write_moov_tag(s->pb, mov, s);
3036 
3037  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3038  mov->mdat_buf = NULL;
3039  avio_wb32(s->pb, buf_size + 8);
3040  ffio_wfourcc(s->pb, "mdat");
3041  avio_write(s->pb, buf, buf_size);
3042  av_free(buf);
3043 
3044  mov->fragments++;
3045  mov->mdat_size = 0;
3046  for (i = 0; i < mov->nb_streams; i++) {
3047  if (mov->tracks[i].entry)
3048  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3049  mov->tracks[i].track_duration -
3050  mov->tracks[i].cluster[0].dts;
3051  mov->tracks[i].entry = 0;
3052  }
3053  avio_flush(s->pb);
3054  return 0;
3055  }
3056 
3057  for (i = 0; i < mov->nb_streams; i++) {
3058  MOVTrack *track = &mov->tracks[i];
3059  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3060  track->data_offset = 0;
3061  else
3062  track->data_offset = mdat_size;
3063  if (!track->mdat_buf)
3064  continue;
3065  mdat_size += avio_tell(track->mdat_buf);
3066  if (first_track < 0)
3067  first_track = i;
3068  }
3069 
3070  if (!mdat_size)
3071  return 0;
3072 
3073  for (i = 0; i < mov->nb_streams; i++) {
3074  MOVTrack *track = &mov->tracks[i];
3075  int buf_size, write_moof = 1, moof_tracks = -1;
3076  uint8_t *buf;
3077  int64_t duration = 0;
3078 
3079  if (track->entry)
3080  duration = track->start_dts + track->track_duration -
3081  track->cluster[0].dts;
3082  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3083  if (!track->mdat_buf)
3084  continue;
3085  mdat_size = avio_tell(track->mdat_buf);
3086  moof_tracks = i;
3087  } else {
3088  write_moof = i == first_track;
3089  }
3090 
3091  if (write_moof) {
3092  MOVFragmentInfo *info;
3093  avio_flush(s->pb);
3094  track->nb_frag_info++;
3095  if (track->nb_frag_info >= track->frag_info_capacity) {
3096  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3097  if (av_reallocp_array(&track->frag_info,
3098  new_capacity,
3099  sizeof(*track->frag_info)))
3100  return AVERROR(ENOMEM);
3101  track->frag_info_capacity = new_capacity;
3102  }
3103  info = &track->frag_info[track->nb_frag_info - 1];
3104  info->offset = avio_tell(s->pb);
3105  info->time = mov->tracks[i].frag_start;
3106  info->duration = duration;
3107  mov_write_tfrf_tags(s->pb, mov, track);
3108 
3109  mov_write_moof_tag(s->pb, mov, moof_tracks);
3110  info->tfrf_offset = track->tfrf_offset;
3111  mov->fragments++;
3112 
3113  avio_wb32(s->pb, mdat_size + 8);
3114  ffio_wfourcc(s->pb, "mdat");
3115  }
3116 
3117  if (track->entry)
3118  track->frag_start += duration;
3119  track->entry = 0;
3120  if (!track->mdat_buf)
3121  continue;
3122  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3123  track->mdat_buf = NULL;
3124 
3125  avio_write(s->pb, buf, buf_size);
3126  av_free(buf);
3127  }
3128 
3129  mov->mdat_size = 0;
3130 
3131  avio_flush(s->pb);
3132  return 0;
3133 }
3134 
3136 {
3137  MOVMuxContext *mov = s->priv_data;
3138  AVIOContext *pb = s->pb;
3139  MOVTrack *trk = &mov->tracks[pkt->stream_index];
3140  AVCodecContext *enc = trk->enc;
3141  unsigned int samples_in_chunk = 0;
3142  int size = pkt->size;
3143  uint8_t *reformatted_data = NULL;
3144 
3145  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3146  int ret;
3147  if (mov->fragments > 0) {
3148  if (!trk->mdat_buf) {
3149  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3150  return ret;
3151  }
3152  pb = trk->mdat_buf;
3153  } else {
3154  if (!mov->mdat_buf) {
3155  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3156  return ret;
3157  }
3158  pb = mov->mdat_buf;
3159  }
3160  }
3161 
3162  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3163  /* We must find out how many AMR blocks there are in one packet */
3164  static uint16_t packed_size[16] =
3165  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3166  int len = 0;
3167 
3168  while (len < size && samples_in_chunk < 100) {
3169  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3170  samples_in_chunk++;
3171  }
3172  if (samples_in_chunk > 1) {
3173  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3174  return -1;
3175  }
3176  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3178  samples_in_chunk = enc->frame_size;
3179  } else if (trk->sample_size)
3180  samples_in_chunk = size / trk->sample_size;
3181  else
3182  samples_in_chunk = 1;
3183 
3184  /* copy extradata if it exists */
3185  if (trk->vos_len == 0 && enc->extradata_size > 0) {
3186  trk->vos_len = enc->extradata_size;
3187  trk->vos_data = av_malloc(trk->vos_len);
3188  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3189  }
3190 
3191  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3192  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3193  if (!s->streams[pkt->stream_index]->nb_frames) {
3194  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3195  "use audio bitstream filter 'aac_adtstoasc' to fix it "
3196  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3197  return -1;
3198  }
3199  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3200  }
3201  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3202  /* from x264 or from bytestream h264 */
3203  /* nal reformating needed */
3204  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3205  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3206  &size);
3207  avio_write(pb, reformatted_data, size);
3208  } else {
3209  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3210  }
3211  } else {
3212  avio_write(pb, pkt->data, size);
3213  }
3214 
3215  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3216  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3217  /* copy frame to create needed atoms */
3218  trk->vos_len = size;
3219  trk->vos_data = av_malloc(size);
3220  if (!trk->vos_data)
3221  return AVERROR(ENOMEM);
3222  memcpy(trk->vos_data, pkt->data, size);
3223  }
3224 
3225  if (trk->entry >= trk->cluster_capacity) {
3226  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3227  if (av_reallocp_array(&trk->cluster, new_capacity,
3228  sizeof(*trk->cluster)))
3229  return AVERROR(ENOMEM);
3230  trk->cluster_capacity = new_capacity;
3231  }
3232 
3233  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3234  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3235  trk->cluster[trk->entry].chunkNum = 0;
3236  trk->cluster[trk->entry].size = size;
3237  trk->cluster[trk->entry].entries = samples_in_chunk;
3238  trk->cluster[trk->entry].dts = pkt->dts;
3239  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3240  /* First packet of a new fragment. We already wrote the duration
3241  * of the last packet of the previous fragment based on track_duration,
3242  * which might not exactly match our dts. Therefore adjust the dts
3243  * of this packet to be what the previous packets duration implies. */
3244  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3245  }
3246  if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3247  trk->cluster[trk->entry].dts = trk->start_dts = 0;
3248  }
3249  if (trk->start_dts == AV_NOPTS_VALUE)
3250  trk->start_dts = pkt->dts;
3251  trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3252  trk->last_sample_is_subtitle_end = 0;
3253 
3254  if (pkt->pts == AV_NOPTS_VALUE) {
3255  av_log(s, AV_LOG_WARNING, "pts has no value\n");
3256  pkt->pts = pkt->dts;
3257  }
3258  if (pkt->dts != pkt->pts)
3259  trk->flags |= MOV_TRACK_CTTS;
3260  trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3261  trk->cluster[trk->entry].flags = 0;
3262  if (enc->codec_id == AV_CODEC_ID_VC1) {
3263  mov_parse_vc1_frame(pkt, trk, mov->fragments);
3264  } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3265  if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3266  trk->entry > 0) { // force sync sample for the first key frame
3267  mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3268  if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3269  trk->flags |= MOV_TRACK_STPS;
3270  } else {
3271  trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3272  }
3273  if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3274  trk->has_keyframes++;
3275  }
3276  trk->entry++;
3277  trk->sample_count += samples_in_chunk;
3278  mov->mdat_size += size;
3279 
3280  avio_flush(pb);
3281 
3282  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3283  ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3284  reformatted_data, size);
3285  av_free(reformatted_data);
3286  return 0;
3287 }
3288 
3290 {
3291  MOVMuxContext *mov = s->priv_data;
3292  MOVTrack *trk = &mov->tracks[pkt->stream_index];
3293  AVCodecContext *enc = trk->enc;
3294  int64_t frag_duration = 0;
3295  int size = pkt->size;
3296 
3297  if (!pkt->size)
3298  return 0; /* Discard 0 sized packets */
3299 
3300  if (trk->entry && pkt->stream_index < s->nb_streams)
3301  frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3302  s->streams[pkt->stream_index]->time_base,
3303  AV_TIME_BASE_Q);
3304  if ((mov->max_fragment_duration &&
3305  frag_duration >= mov->max_fragment_duration) ||
3306  (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3307  (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3308  enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3309  trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3310  if (frag_duration >= mov->min_fragment_duration)
3311  mov_flush_fragment(s);
3312  }
3313 
3314  return ff_mov_write_packet(s, pkt);
3315 }
3316 
3318  int stream_index,
3319  int64_t dts) {
3320  AVPacket end;
3321  uint8_t data[2] = {0};
3322  int ret;
3323 
3324  av_init_packet(&end);
3325  end.size = sizeof(data);
3326  end.data = data;
3327  end.pts = dts;
3328  end.dts = dts;
3329  end.duration = 0;
3330  end.stream_index = stream_index;
3331 
3332  ret = mov_write_single_packet(s, &end);
3333  av_free_packet(&end);
3334 
3335  return ret;
3336 }
3337 
3339 {
3340  if (!pkt) {
3341  mov_flush_fragment(s);
3342  return 1;
3343  } else {
3344  int i;
3345  MOVMuxContext *mov = s->priv_data;
3346 
3347  if (!pkt->size) return 0; /* Discard 0 sized packets */
3348 
3349  /*
3350  * Subtitles require special handling.
3351  *
3352  * 1) For full complaince, every track must have a sample at
3353  * dts == 0, which is rarely true for subtitles. So, as soon
3354  * as we see any packet with dts > 0, write an empty subtitle
3355  * at dts == 0 for any subtitle track with no samples in it.
3356  *
3357  * 2) For each subtitle track, check if the current packet's
3358  * dts is past the duration of the last subtitle sample. If
3359  * so, we now need to write an end sample for that subtitle.
3360  *
3361  * This must be done conditionally to allow for subtitles that
3362  * immediately replace each other, in which case an end sample
3363  * is not needed, and is, in fact, actively harmful.
3364  *
3365  * 3) See mov_write_trailer for how the final end sample is
3366  * handled.
3367  */
3368  for (i = 0; i < mov->nb_streams; i++) {
3369  MOVTrack *trk = &mov->tracks[i];
3370  int ret;
3371 
3372  if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3373  trk->track_duration < pkt->dts &&
3374  (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3376  if (ret < 0) return ret;
3377  trk->last_sample_is_subtitle_end = 1;
3378  }
3379  }
3380 
3381  return mov_write_single_packet(s, pkt);
3382  }
3383 }
3384 
3385 // QuickTime chapters involve an additional text track with the chapter names
3386 // as samples, and a tref pointing from the other tracks to the chapter one.
3387 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
3388 {
3389  AVIOContext *pb;
3390 
3391  MOVMuxContext *mov = s->priv_data;
3392  MOVTrack *track = &mov->tracks[tracknum];
3393  AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3394  int i, len;
3395 
3396  track->mode = mov->mode;
3397  track->tag = MKTAG('t','e','x','t');
3398  track->timescale = MOV_TIMESCALE;
3399  track->enc = avcodec_alloc_context3(NULL);
3401 
3402  if (avio_open_dyn_buf(&pb) >= 0) {
3403  int size;
3404  uint8_t *buf;
3405 
3406  /* Stub header (usually for Quicktime chapter track) */
3407  // TextSampleEntry
3408  avio_wb32(pb, 0x01); // displayFlags
3409  avio_w8(pb, 0x00); // horizontal justification
3410  avio_w8(pb, 0x00); // vertical justification
3411  avio_w8(pb, 0x00); // bgColourRed
3412  avio_w8(pb, 0x00); // bgColourGreen
3413  avio_w8(pb, 0x00); // bgColourBlue
3414  avio_w8(pb, 0x00); // bgColourAlpha
3415  // BoxRecord
3416  avio_wb16(pb, 0x00); // defTextBoxTop
3417  avio_wb16(pb, 0x00); // defTextBoxLeft
3418  avio_wb16(pb, 0x00); // defTextBoxBottom
3419  avio_wb16(pb, 0x00); // defTextBoxRight
3420  // StyleRecord
3421  avio_wb16(pb, 0x00); // startChar
3422  avio_wb16(pb, 0x00); // endChar
3423  avio_wb16(pb, 0x01); // fontID
3424  avio_w8(pb, 0x00); // fontStyleFlags
3425  avio_w8(pb, 0x00); // fontSize
3426  avio_w8(pb, 0x00); // fgColourRed
3427  avio_w8(pb, 0x00); // fgColourGreen
3428  avio_w8(pb, 0x00); // fgColourBlue
3429  avio_w8(pb, 0x00); // fgColourAlpha
3430  // FontTableBox
3431  avio_wb32(pb, 0x0D); // box size
3432  ffio_wfourcc(pb, "ftab"); // box atom name
3433  avio_wb16(pb, 0x01); // entry count
3434  // FontRecord
3435  avio_wb16(pb, 0x01); // font ID
3436  avio_w8(pb, 0x00); // font name length
3437 
3438  if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3439  track->enc->extradata = buf;
3440  track->enc->extradata_size = size;
3441  } else {
3442  av_free(&buf);
3443  }
3444  }
3445 
3446  for (i = 0; i < s->nb_chapters; i++) {
3447  AVChapter *c = s->chapters[i];
3449 
3450  int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3451  pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3452  pkt.duration = end - pkt.dts;
3453 
3454  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3455  len = strlen(t->value);
3456  pkt.size = len + 2;
3457  pkt.data = av_malloc(pkt.size);
3458  AV_WB16(pkt.data, len);
3459  memcpy(pkt.data + 2, t->value, len);
3461  av_freep(&pkt.data);
3462  }
3463  }
3464 }
3465 
3466 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3467 {
3468  int ret;
3469  MOVMuxContext *mov = s->priv_data;
3470  MOVTrack *track = &mov->tracks[index];
3471  AVStream *src_st = s->streams[src_index];
3472  AVTimecode tc;
3473  AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3474  AVRational rate = {src_st->codec->time_base.den, src_st->codec->time_base.num};
3475 
3476  /* if the codec time base makes no sense, try to fallback on stream frame rate */
3477  if (av_timecode_check_frame_rate(rate) < 0) {
3478  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
3479  rate.num, rate.den, src_st->avg_frame_rate.num, src_st->avg_frame_rate.den);
3480  rate = src_st->avg_frame_rate;
3481  }
3482 
3483  /* compute the frame number */
3484  ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3485  if (ret < 0)
3486  return ret;
3487 
3488  /* tmcd track based on video stream */
3489  track->mode = mov->mode;
3490  track->tag = MKTAG('t','m','c','d');
3491  track->src_track = src_index;
3492  track->timescale = mov->tracks[src_index].timescale;
3495 
3496  /* encode context: tmcd data stream */
3497  track->enc = avcodec_alloc_context3(NULL);
3498  track->enc->codec_type = AVMEDIA_TYPE_DATA;
3499  track->enc->codec_tag = track->tag;
3500  track->enc->time_base = src_st->codec->time_base;
3501 
3502  /* the tmcd track just contains one packet with the frame number */
3503  pkt.data = av_malloc(pkt.size);
3504  AV_WB32(pkt.data, tc.start);
3505  ret = ff_mov_write_packet(s, &pkt);
3506  av_free(pkt.data);
3507  return ret;
3508 }
3509 
3511 {
3512  AVIOContext *pb = s->pb;
3513  MOVMuxContext *mov = s->priv_data;
3514  AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3515  int i, hint_track = 0, tmcd_track = 0;
3516 
3517  /* Set the FRAGMENT flag if any of the fragmentation methods are
3518  * enabled. */
3519  if (mov->max_fragment_duration || mov->max_fragment_size ||
3520  mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3523  mov->flags |= FF_MOV_FLAG_FRAGMENT;
3524 
3525  /* faststart: moov at the beginning of the file, if supported */
3526  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3527  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3528  mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3529  else
3530  mov->reserved_moov_size = -1;
3531  }
3532 
3533  if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3534  s->avoid_negative_ts = 1;
3535  }
3536 
3537  /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3538  * is enabled, we don't support non-seekable output at all. */
3539  if (!s->pb->seekable &&
3540  ((!(mov->flags & FF_MOV_FLAG_FRAGMENT) &&
3541  !(s->oformat && !strcmp(s->oformat->name, "ismv")))
3542  || mov->ism_lookahead)) {
3543  av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3544  return -1;
3545  }
3546 
3547  /* Default mode == MP4 */
3548  mov->mode = MODE_MP4;
3549 
3550  if (s->oformat != NULL) {
3551  if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3552  else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3553  else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3554  else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3555  else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3556  else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3557  else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3558 
3559  mov_write_ftyp_tag(pb,s);
3560  if (mov->mode == MODE_PSP) {
3561  if (s->nb_streams != 2) {
3562  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3563  return -1;
3564  }
3565  mov_write_uuidprof_tag(pb, s);
3566  }
3567  }
3568 
3569  mov->nb_streams = s->nb_streams;
3570  if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
3571  mov->chapter_track = mov->nb_streams++;
3572 
3573  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3574  /* Add hint tracks for each audio and video stream */
3575  hint_track = mov->nb_streams;
3576  for (i = 0; i < s->nb_streams; i++) {
3577  AVStream *st = s->streams[i];
3578  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3580  mov->nb_streams++;
3581  }
3582  }
3583  }
3584 
3585  if (mov->mode == MODE_MOV) {
3586  tmcd_track = mov->nb_streams;
3587 
3588  /* +1 tmcd track for each video stream with a timecode */
3589  for (i = 0; i < s->nb_streams; i++) {
3590  AVStream *st = s->streams[i];
3591  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3592  (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3593  mov->nb_meta_tmcd++;
3594  }
3595 
3596  /* check if there is already a tmcd track to remux */
3597  if (mov->nb_meta_tmcd) {
3598  for (i = 0; i < s->nb_streams; i++) {
3599  AVStream *st = s->streams[i];
3600  if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3601  av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3602  "so timecode metadata are now ignored\n");
3603  mov->nb_meta_tmcd = 0;
3604  }
3605  }
3606  }
3607 
3608  mov->nb_streams += mov->nb_meta_tmcd;
3609  }
3610 
3611  mov->tracks = av_mallocz(mov->nb_streams * sizeof(*mov->tracks));
3612  if (!mov->tracks)
3613  return AVERROR(ENOMEM);
3614 
3615  for (i = 0; i < s->nb_streams; i++) {
3616  AVStream *st= s->streams[i];
3617  MOVTrack *track= &mov->tracks[i];
3618  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3619 
3620  track->enc = st->codec;
3621  track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3622  if (track->language < 0)
3623  track->language = 0;
3624  track->mode = mov->mode;
3625  track->tag = mov_find_codec_tag(s, track);
3626  if (!track->tag) {
3627  av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3628  "codec not currently supported in container\n", i);
3629  goto error;
3630  }
3631  /* If hinting of this track is enabled by a later hint track,
3632  * this is updated. */
3633  track->hint_track = -1;
3634  track->start_dts = AV_NOPTS_VALUE;
3635  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3636  if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3637  track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3638  track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3639  if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3640  av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3641  goto error;
3642  }
3643  track->height = track->tag >> 24 == 'n' ? 486 : 576;
3644  }
3645  if (mov->video_track_timescale) {
3646  track->timescale = mov->video_track_timescale;
3647  } else {
3648  track->timescale = st->codec->time_base.den;
3649  while(track->timescale < 10000)
3650  track->timescale *= 2;
3651  }
3652  if (track->mode == MODE_MOV && track->timescale > 100000)
3654  "WARNING codec timebase is very high. If duration is too long,\n"
3655  "file may not be playable by quicktime. Specify a shorter timebase\n"
3656  "or choose different container.\n");
3657  } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3658  track->timescale = st->codec->sample_rate;
3659  if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
3660  av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
3661  track->audio_vbr = 1;
3662  }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
3664  st->codec->codec_id == AV_CODEC_ID_ILBC){
3665  if (!st->codec->block_align) {
3666  av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
3667  goto error;
3668  }
3669  track->sample_size = st->codec->block_align;
3670  }else if (st->codec->frame_size > 1){ /* assume compressed audio */
3671  track->audio_vbr = 1;
3672  }else{
3673  track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
3674  }
3675  if (track->mode != MODE_MOV &&
3676  track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3677  av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3678  i, track->enc->sample_rate);
3679  goto error;
3680  }
3681  } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3682  track->timescale = st->codec->time_base.den;
3683  }else{
3684  track->timescale = MOV_TIMESCALE;
3685  }
3686  if (!track->height)
3687  track->height = st->codec->height;
3688  /* The ism specific timescale isn't mandatory, but is assumed by
3689  * some tools, such as mp4split. */
3690  if (mov->mode == MODE_ISM)
3691  track->timescale = 10000000;
3692 
3693  avpriv_set_pts_info(st, 64, 1, track->timescale);
3694 
3695  /* copy extradata if it exists */
3696  if (st->codec->extradata_size) {
3697  track->vos_len = st->codec->extradata_size;
3698  track->vos_data = av_malloc(track->vos_len);
3699  memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3700  }
3701  }
3702 
3703  if (mov->mode == MODE_ISM) {
3704  /* If no fragmentation options have been set, set a default. */
3705  if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3708  mov->max_fragment_duration = 5000000;
3711  }
3712 
3713  if (mov->reserved_moov_size){
3714  mov->reserved_moov_pos= avio_tell(pb);
3715  if (mov->reserved_moov_size > 0)
3716  avio_skip(pb, mov->reserved_moov_size);
3717  }
3718 
3719  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3720  mov_write_mdat_tag(pb, mov);
3721 
3722  if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3723  mov->time = ff_iso8601_to_unix_time(t->value);
3724  if (mov->time)
3725  mov->time += 0x7C25B080; // 1970 based -> 1904 based
3726 
3727  if (mov->chapter_track)
3729 
3730  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3731  /* Initialize the hint tracks for each audio and video stream */
3732  for (i = 0; i < s->nb_streams; i++) {
3733  AVStream *st = s->streams[i];
3734  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3736  if (ff_mov_init_hinting(s, hint_track, i) < 0)
3737  goto error;
3738  hint_track++;
3739  }
3740  }
3741  }
3742 
3743  if (mov->nb_meta_tmcd) {
3744  /* Initialize the tmcd tracks */
3745  for (i = 0; i < s->nb_streams; i++) {
3746  AVStream *st = s->streams[i];
3747  t = global_tcr;
3748 
3749  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3750  if (!t)
3751  t = av_dict_get(st->metadata, "timecode", NULL, 0);
3752  if (!t)
3753  continue;
3754  if (mov_create_timecode_track(s, tmcd_track, i, t->value) < 0)
3755  goto error;
3756  tmcd_track++;
3757  }
3758  }
3759  }
3760 
3761  avio_flush(pb);
3762 
3763  if (mov->flags & FF_MOV_FLAG_ISML)
3764  mov_write_isml_manifest(pb, mov);
3765 
3766  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3767  mov_write_moov_tag(pb, mov, s);
3768  mov->fragments++;
3769  }
3770 
3771  return 0;
3772  error:
3773  av_freep(&mov->tracks);
3774  return -1;
3775 }
3776 
3777 /**
3778  * This function gets the moov size if moved to the top of the file: the chunk
3779  * offset table can switch between stco (32-bit entries) to co64 (64-bit
3780  * entries) when the moov is moved to the top, so the size of the moov would
3781  * change. It also updates the chunk offset tables.
3782  */
3784 {
3785  int i, moov_size, moov_size2;
3786  MOVMuxContext *mov = s->priv_data;
3787 
3788  moov_size = get_moov_size(s);
3789  if (moov_size < 0)
3790  return moov_size;
3791 
3792  for (i = 0; i < mov->nb_streams; i++)
3793  mov->tracks[i].data_offset += moov_size;
3794 
3795  moov_size2 = get_moov_size(s);
3796  if (moov_size2 < 0)
3797  return moov_size2;
3798 
3799  /* if the size changed, we just switched from stco to co64 and needs to
3800  * update the offsets */
3801  if (moov_size2 != moov_size)
3802  for (i = 0; i < mov->nb_streams; i++)
3803  mov->tracks[i].data_offset += moov_size2 - moov_size;
3804 
3805  return moov_size2;
3806 }
3807 
3809 {
3810  int ret = 0, moov_size;
3811  MOVMuxContext *mov = s->priv_data;
3812  int64_t pos, pos_end = avio_tell(s->pb);
3813  uint8_t *buf, *read_buf[2];
3814  int read_buf_id = 0;
3815  int read_size[2];
3816  AVIOContext *read_pb;
3817 
3818  moov_size = compute_moov_size(s);
3819  if (moov_size < 0)
3820  return moov_size;
3821 
3822  buf = av_malloc(moov_size * 2);
3823  if (!buf)
3824  return AVERROR(ENOMEM);
3825  read_buf[0] = buf;
3826  read_buf[1] = buf + moov_size;
3827 
3828  /* Shift the data: the AVIO context of the output can only be used for
3829  * writing, so we re-open the same output, but for reading. It also avoids
3830  * a read/seek/write/seek back and forth. */
3831  avio_flush(s->pb);
3832  ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3833  if (ret < 0) {
3834  av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3835  "the second pass (faststart)\n", s->filename);
3836  goto end;
3837  }
3838 
3839  /* mark the end of the shift to up to the last data we wrote, and get ready
3840  * for writing */
3841  pos_end = avio_tell(s->pb);
3842  avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3843 
3844  /* start reading at where the new moov will be placed */
3845  avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3846  pos = avio_tell(read_pb);
3847 
3848 #define READ_BLOCK do { \
3849  read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3850  read_buf_id ^= 1; \
3851 } while (0)
3852 
3853  /* shift data by chunk of at most moov_size */
3854  READ_BLOCK;
3855  do {
3856  int n;
3857  READ_BLOCK;
3858  n = read_size[read_buf_id];
3859  if (n <= 0)
3860  break;
3861  avio_write(s->pb, read_buf[read_buf_id], n);
3862  pos += n;
3863  } while (pos < pos_end);
3864  avio_close(read_pb);
3865 
3866 end:
3867  av_free(buf);
3868  return ret;
3869 }
3870 
3872 {
3873  MOVMuxContext *mov = s->priv_data;
3874  AVIOContext *pb = s->pb;
3875  int64_t moov_pos;
3876  int res = 0;
3877  int i;
3878 
3879  /*
3880  * Before actually writing the trailer, make sure that there are no
3881  * dangling subtitles, that need a terminating sample.
3882  */
3883  for (i = 0; i < mov->nb_streams; i++) {
3884  MOVTrack *trk = &mov->tracks[i];
3885  if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3888  trk->last_sample_is_subtitle_end = 1;
3889  }
3890  }
3891 
3892  moov_pos = avio_tell(pb);
3893 
3894  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3895  /* Write size of mdat tag */
3896  if (mov->mdat_size + 8 <= UINT32_MAX) {
3897  avio_seek(pb, mov->mdat_pos, SEEK_SET);
3898  avio_wb32(pb, mov->mdat_size + 8);
3899  } else {
3900  /* overwrite 'wide' placeholder atom */
3901  avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3902  /* special value: real atom size will be 64 bit value after
3903  * tag field */
3904  avio_wb32(pb, 1);
3905  ffio_wfourcc(pb, "mdat");
3906  avio_wb64(pb, mov->mdat_size + 16);
3907  }
3908  avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
3909 
3910  if (mov->reserved_moov_size == -1) {
3911  av_log(s, AV_LOG_INFO, "Starting second pass: moving header on top of the file\n");
3912  res = shift_data(s);
3913  if (res == 0) {
3914  avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
3915  mov_write_moov_tag(pb, mov, s);
3916  }
3917  } else if (mov->reserved_moov_size > 0) {
3918  int64_t size;
3919  mov_write_moov_tag(pb, mov, s);
3920  size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
3921  if (size < 8){
3922  av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
3923  return -1;
3924  }
3925  avio_wb32(pb, size);
3926  ffio_wfourcc(pb, "free");
3927  for (i = 0; i < size; i++)
3928  avio_w8(pb, 0);
3929  avio_seek(pb, moov_pos, SEEK_SET);
3930  } else {
3931  mov_write_moov_tag(pb, mov, s);
3932  }
3933  } else {
3934  mov_flush_fragment(s);
3935  mov_write_mfra_tag(pb, mov);
3936  }
3937 
3938  if (mov->chapter_track)
3939  av_freep(&mov->tracks[mov->chapter_track].enc);
3940 
3941  for (i = 0; i < mov->nb_streams; i++) {
3942  if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3943  ff_mov_close_hinting(&mov->tracks[i]);
3944  else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3945  av_freep(&mov->tracks[i].enc);
3946  if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3947  mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3948  int64_t off = avio_tell(pb);
3949  uint8_t buf[7];
3950  if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3951  avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3952  avio_write(pb, buf, 7);
3953  avio_seek(pb, off, SEEK_SET);
3954  }
3955  }
3956  av_freep(&mov->tracks[i].cluster);
3957  av_freep(&mov->tracks[i].frag_info);
3958 
3959  if (mov->tracks[i].vos_len)
3960  av_free(mov->tracks[i].vos_data);
3961  }
3962 
3963  av_freep(&mov->tracks);
3964 
3965  return res;
3966 }
3967 
3968 #if CONFIG_MOV_MUXER
3969 MOV_CLASS(mov)
3970 AVOutputFormat ff_mov_muxer = {
3971  .name = "mov",
3972  .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3973  .extensions = "mov",
3974  .priv_data_size = sizeof(MOVMuxContext),
3975  .audio_codec = AV_CODEC_ID_AAC,
3976  .video_codec = CONFIG_LIBX264_ENCODER ?
3982  .codec_tag = (const AVCodecTag* const []){
3984  },
3985  .priv_class = &mov_muxer_class,
3986 };
3987 #endif
3988 #if CONFIG_TGP_MUXER
3989 MOV_CLASS(tgp)
3990 AVOutputFormat ff_tgp_muxer = {
3991  .name = "3gp",
3992  .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3993  .extensions = "3gp",
3994  .priv_data_size = sizeof(MOVMuxContext),
3995  .audio_codec = AV_CODEC_ID_AMR_NB,
3996  .video_codec = AV_CODEC_ID_H263,
4001  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4002  .priv_class = &tgp_muxer_class,
4003 };
4004 #endif
4005 #if CONFIG_MP4_MUXER
4006 MOV_CLASS(mp4)
4007 AVOutputFormat ff_mp4_muxer = {
4008  .name = "mp4",
4009  .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4010  .mime_type = "application/mp4",
4011  .extensions = "mp4",
4012  .priv_data_size = sizeof(MOVMuxContext),
4013  .audio_codec = AV_CODEC_ID_AAC,
4014  .video_codec = CONFIG_LIBX264_ENCODER ?
4015  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4020  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4021  .priv_class = &mp4_muxer_class,
4022 };
4023 #endif
4024 #if CONFIG_PSP_MUXER
4025 MOV_CLASS(psp)
4026 AVOutputFormat ff_psp_muxer = {
4027  .name = "psp",
4028  .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4029  .extensions = "mp4,psp",
4030  .priv_data_size = sizeof(MOVMuxContext),
4031  .audio_codec = AV_CODEC_ID_AAC,
4032  .video_codec = CONFIG_LIBX264_ENCODER ?
4033  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4038  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4039  .priv_class = &psp_muxer_class,
4040 };
4041 #endif
4042 #if CONFIG_TG2_MUXER
4043 MOV_CLASS(tg2)
4044 AVOutputFormat ff_tg2_muxer = {
4045  .name = "3g2",
4046  .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4047  .extensions = "3g2",
4048  .priv_data_size = sizeof(MOVMuxContext),
4049  .audio_codec = AV_CODEC_ID_AMR_NB,
4050  .video_codec = AV_CODEC_ID_H263,
4055  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4056  .priv_class = &tg2_muxer_class,
4057 };
4058 #endif
4059 #if CONFIG_IPOD_MUXER
4060 MOV_CLASS(ipod)
4061 AVOutputFormat ff_ipod_muxer = {
4062  .name = "ipod",
4063  .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4064  .mime_type = "application/mp4",
4065  .extensions = "m4v,m4a",
4066  .priv_data_size = sizeof(MOVMuxContext),
4067  .audio_codec = AV_CODEC_ID_AAC,
4068  .video_codec = AV_CODEC_ID_H264,
4073  .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4074  .priv_class = &ipod_muxer_class,
4075 };
4076 #endif
4077 #if CONFIG_ISMV_MUXER
4078 MOV_CLASS(ismv)
4079 AVOutputFormat ff_ismv_muxer = {
4080  .name = "ismv",
4081  .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4082  .mime_type = "application/mp4",
4083  .extensions = "ismv,isma",
4084  .priv_data_size = sizeof(MOVMuxContext),
4085  .audio_codec = AV_CODEC_ID_AAC,
4086  .video_codec = AV_CODEC_ID_H264,
4091  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4092  .priv_class = &ismv_muxer_class,
4093 };
4094 #endif
4095 #if CONFIG_F4V_MUXER
4096 MOV_CLASS(f4v)
4097 AVOutputFormat ff_f4v_muxer = {
4098  .name = "f4v",
4099  .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4100  .mime_type = "application/f4v",
4101  .extensions = "f4v",
4102  .priv_data_size = sizeof(MOVMuxContext),
4103  .audio_codec = AV_CODEC_ID_AAC,
4104  .video_codec = AV_CODEC_ID_H264,
4109  .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4110  .priv_class = &f4v_muxer_class,
4111 };
4112 #endif