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 Libav.
8  *
9  * Libav 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  * Libav 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 Libav; 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  { "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" },
50  { "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" },
51  { "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" },
52  { "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" },
53  { "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" },
54  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
55  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
56  { "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},
57  { "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},
58  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
59  { "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},
60  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
61  { "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},
62  { NULL },
63 };
64 
65 #define MOV_CLASS(flavor)\
66 static const AVClass flavor ## _muxer_class = {\
67  .class_name = #flavor " muxer",\
68  .item_name = av_default_item_name,\
69  .option = options,\
70  .version = LIBAVUTIL_VERSION_INT,\
71 };
72 
73 //FIXME support 64 bit variant with wide placeholders
74 static int64_t update_size(AVIOContext *pb, int64_t pos)
75 {
76  int64_t curpos = avio_tell(pb);
77  avio_seek(pb, pos, SEEK_SET);
78  avio_wb32(pb, curpos - pos); /* rewrite size */
79  avio_seek(pb, curpos, SEEK_SET);
80 
81  return curpos - pos;
82 }
83 
84 /* Chunk offset atom */
85 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
86 {
87  int i;
88  int mode64 = 0; // use 32 bit size variant if possible
89  int64_t pos = avio_tell(pb);
90  avio_wb32(pb, 0); /* size */
91  if (pos > UINT32_MAX) {
92  mode64 = 1;
93  ffio_wfourcc(pb, "co64");
94  } else
95  ffio_wfourcc(pb, "stco");
96  avio_wb32(pb, 0); /* version & flags */
97  avio_wb32(pb, track->entry); /* entry count */
98  for (i=0; i<track->entry; i++) {
99  if(mode64 == 1)
100  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
101  else
102  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
103  }
104  return update_size(pb, pos);
105 }
106 
107 /* Sample size atom */
108 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
109 {
110  int equalChunks = 1;
111  int i, j, entries = 0, tst = -1, oldtst = -1;
112 
113  int64_t pos = avio_tell(pb);
114  avio_wb32(pb, 0); /* size */
115  ffio_wfourcc(pb, "stsz");
116  avio_wb32(pb, 0); /* version & flags */
117 
118  for (i=0; i<track->entry; i++) {
119  tst = track->cluster[i].size/track->cluster[i].entries;
120  if(oldtst != -1 && tst != oldtst) {
121  equalChunks = 0;
122  }
123  oldtst = tst;
124  entries += track->cluster[i].entries;
125  }
126  if (equalChunks && track->entry) {
127  int sSize = track->entry ? track->cluster[0].size/track->cluster[0].entries : 0;
128  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
129  avio_wb32(pb, sSize); // sample size
130  avio_wb32(pb, entries); // sample count
131  }
132  else {
133  avio_wb32(pb, 0); // sample size
134  avio_wb32(pb, entries); // sample count
135  for (i=0; i<track->entry; i++) {
136  for (j=0; j<track->cluster[i].entries; j++) {
137  avio_wb32(pb, track->cluster[i].size /
138  track->cluster[i].entries);
139  }
140  }
141  }
142  return update_size(pb, pos);
143 }
144 
145 /* Sample to chunk atom */
146 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
147 {
148  int index = 0, oldval = -1, i;
149  int64_t entryPos, curpos;
150 
151  int64_t pos = avio_tell(pb);
152  avio_wb32(pb, 0); /* size */
153  ffio_wfourcc(pb, "stsc");
154  avio_wb32(pb, 0); // version & flags
155  entryPos = avio_tell(pb);
156  avio_wb32(pb, track->entry); // entry count
157  for (i=0; i<track->entry; i++) {
158  if (oldval != track->cluster[i].samples_in_chunk)
159  {
160  avio_wb32(pb, i+1); // first chunk
161  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
162  avio_wb32(pb, 0x1); // sample description index
163  oldval = track->cluster[i].samples_in_chunk;
164  index++;
165  }
166  }
167  curpos = avio_tell(pb);
168  avio_seek(pb, entryPos, SEEK_SET);
169  avio_wb32(pb, index); // rewrite size
170  avio_seek(pb, curpos, SEEK_SET);
171 
172  return update_size(pb, pos);
173 }
174 
175 /* Sync sample atom */
176 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
177 {
178  int64_t curpos, entryPos;
179  int i, index = 0;
180  int64_t pos = avio_tell(pb);
181  avio_wb32(pb, 0); // size
182  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
183  avio_wb32(pb, 0); // version & flags
184  entryPos = avio_tell(pb);
185  avio_wb32(pb, track->entry); // entry count
186  for (i=0; i<track->entry; i++) {
187  if (track->cluster[i].flags & flag) {
188  avio_wb32(pb, i+1);
189  index++;
190  }
191  }
192  curpos = avio_tell(pb);
193  avio_seek(pb, entryPos, SEEK_SET);
194  avio_wb32(pb, index); // rewrite size
195  avio_seek(pb, curpos, SEEK_SET);
196  return update_size(pb, pos);
197 }
198 
199 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
200 {
201  avio_wb32(pb, 0x11); /* size */
202  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
203  else ffio_wfourcc(pb, "damr");
204  ffio_wfourcc(pb, "FFMP");
205  avio_w8(pb, 0); /* decoder version */
206 
207  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
208  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
209  avio_w8(pb, 0x01); /* Frames per sample */
210  return 0x11;
211 }
212 
213 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
214 {
215  GetBitContext gbc;
216  PutBitContext pbc;
217  uint8_t buf[3];
218  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
219 
220  if (track->vos_len < 7)
221  return -1;
222 
223  avio_wb32(pb, 11);
224  ffio_wfourcc(pb, "dac3");
225 
226  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
227  fscod = get_bits(&gbc, 2);
228  frmsizecod = get_bits(&gbc, 6);
229  bsid = get_bits(&gbc, 5);
230  bsmod = get_bits(&gbc, 3);
231  acmod = get_bits(&gbc, 3);
232  if (acmod == 2) {
233  skip_bits(&gbc, 2); // dsurmod
234  } else {
235  if ((acmod & 1) && acmod != 1)
236  skip_bits(&gbc, 2); // cmixlev
237  if (acmod & 4)
238  skip_bits(&gbc, 2); // surmixlev
239  }
240  lfeon = get_bits1(&gbc);
241 
242  init_put_bits(&pbc, buf, sizeof(buf));
243  put_bits(&pbc, 2, fscod);
244  put_bits(&pbc, 5, bsid);
245  put_bits(&pbc, 3, bsmod);
246  put_bits(&pbc, 3, acmod);
247  put_bits(&pbc, 1, lfeon);
248  put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
249  put_bits(&pbc, 5, 0); // reserved
250 
251  flush_put_bits(&pbc);
252  avio_write(pb, buf, sizeof(buf));
253 
254  return 11;
255 }
256 
262 {
263  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
264  return track->enc->extradata_size;
265 }
266 
267 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
268 {
269  int i = 3;
270  avio_w8(pb, tag);
271  for(; i>0; i--)
272  avio_w8(pb, (size>>(7*i)) | 0x80);
273  avio_w8(pb, size & 0x7F);
274 }
275 
276 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
277 {
278  int64_t pos = avio_tell(pb);
279  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
280 
281  avio_wb32(pb, 0); // size
282  ffio_wfourcc(pb, "esds");
283  avio_wb32(pb, 0); // Version
284 
285  // ES descriptor
286  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
287  avio_wb16(pb, track->track_id);
288  avio_w8(pb, 0x00); // flags (= no flags)
289 
290  // DecoderConfig descriptor
291  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
292 
293  // Object type indication
294  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
295  track->enc->codec_id == AV_CODEC_ID_MP3) &&
296  track->enc->sample_rate > 24000)
297  avio_w8(pb, 0x6B); // 11172-3
298  else
300 
301  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
302  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
303  if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
304  avio_w8(pb, 0x15); // flags (= Audiostream)
305  else
306  avio_w8(pb, 0x11); // flags (= Visualstream)
307 
308  avio_w8(pb, track->enc->rc_buffer_size>>(3+16)); // Buffersize DB (24 bits)
309  avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
310 
311  avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
312  if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
313  avio_wb32(pb, 0); // vbr
314  else
315  avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
316 
317  if (track->vos_len) {
318  // DecoderSpecific info descriptor
319  put_descr(pb, 0x05, track->vos_len);
320  avio_write(pb, track->vos_data, track->vos_len);
321  }
322 
323  // SL descriptor
324  put_descr(pb, 0x06, 1);
325  avio_w8(pb, 0x02);
326  return update_size(pb, pos);
327 }
328 
329 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
330 {
331  int64_t pos = avio_tell(pb);
332  avio_wb32(pb, 0);
333  avio_wl32(pb, track->tag); // store it byteswapped
334  track->enc->codec_tag = av_bswap16(track->tag >> 16);
335  ff_put_wav_header(pb, track->enc);
336  return update_size(pb, pos);
337 }
338 
339 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
340 {
341  int64_t pos = avio_tell(pb);
342  avio_wb32(pb, 0);
343  ffio_wfourcc(pb, "wfex");
344  ff_put_wav_header(pb, track->enc);
345  return update_size(pb, pos);
346 }
347 
348 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
349 {
350  uint32_t layout_tag, bitmap;
351  int64_t pos = avio_tell(pb);
352 
353  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
354  track->enc->channel_layout,
355  &bitmap);
356  if (!layout_tag) {
357  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
358  "lack of channel information\n");
359  return 0;
360  }
361 
362  avio_wb32(pb, 0); // Size
363  ffio_wfourcc(pb, "chan"); // Type
364  avio_w8(pb, 0); // Version
365  avio_wb24(pb, 0); // Flags
366  avio_wb32(pb, layout_tag); // mChannelLayoutTag
367  avio_wb32(pb, bitmap); // mChannelBitmap
368  avio_wb32(pb, 0); // mNumberChannelDescriptions
369 
370  return update_size(pb, pos);
371 }
372 
373 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
374 {
375  int64_t pos = avio_tell(pb);
376 
377  avio_wb32(pb, 0); /* size */
378  ffio_wfourcc(pb, "wave");
379 
380  avio_wb32(pb, 12); /* size */
381  ffio_wfourcc(pb, "frma");
382  avio_wl32(pb, track->tag);
383 
384  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
385  /* useless atom needed by mplayer, ipod, not needed by quicktime */
386  avio_wb32(pb, 12); /* size */
387  ffio_wfourcc(pb, "mp4a");
388  avio_wb32(pb, 0);
389  mov_write_esds_tag(pb, track);
390  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
391  mov_write_amr_tag(pb, track);
392  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
393  mov_write_ac3_tag(pb, track);
394  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
395  mov_write_extradata_tag(pb, track);
396  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
398  mov_write_ms_tag(pb, track);
399  }
400 
401  avio_wb32(pb, 8); /* size */
402  avio_wb32(pb, 0); /* null tag */
403 
404  return update_size(pb, pos);
405 }
406 
407 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
408 {
409  uint8_t *unescaped;
410  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
411  int unescaped_size, seq_found = 0;
412  int level = 0, interlace = 0;
413  int packet_seq = track->vc1_info.packet_seq;
414  int packet_entry = track->vc1_info.packet_entry;
415  int slices = track->vc1_info.slices;
416  PutBitContext pbc;
417 
418  if (track->start_dts == AV_NOPTS_VALUE) {
419  /* No packets written yet, vc1_info isn't authoritative yet. */
420  /* Assume inline sequence and entry headers. This will be
421  * overwritten at the end if the file is seekable. */
422  packet_seq = packet_entry = 1;
423  }
424 
425  unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
426  if (!unescaped)
427  return AVERROR(ENOMEM);
428  start = find_next_marker(track->vos_data, end);
429  for (next = start; next < end; start = next) {
430  GetBitContext gb;
431  int size;
432  next = find_next_marker(start + 4, end);
433  size = next - start - 4;
434  if (size <= 0)
435  continue;
436  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
437  init_get_bits(&gb, unescaped, 8 * unescaped_size);
438  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
439  int profile = get_bits(&gb, 2);
440  if (profile != PROFILE_ADVANCED) {
441  av_free(unescaped);
442  return AVERROR(ENOSYS);
443  }
444  seq_found = 1;
445  level = get_bits(&gb, 3);
446  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
447  * width, height */
448  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
449  skip_bits(&gb, 1); /* broadcast */
450  interlace = get_bits1(&gb);
451  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
452  }
453  }
454  if (!seq_found) {
455  av_free(unescaped);
456  return AVERROR(ENOSYS);
457  }
458 
459  init_put_bits(&pbc, buf, 7);
460  /* VC1DecSpecStruc */
461  put_bits(&pbc, 4, 12); /* profile - advanced */
462  put_bits(&pbc, 3, level);
463  put_bits(&pbc, 1, 0); /* reserved */
464  /* VC1AdvDecSpecStruc */
465  put_bits(&pbc, 3, level);
466  put_bits(&pbc, 1, 0); /* cbr */
467  put_bits(&pbc, 6, 0); /* reserved */
468  put_bits(&pbc, 1, !interlace); /* no interlace */
469  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
470  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
471  put_bits(&pbc, 1, !slices); /* no slice code */
472  put_bits(&pbc, 1, 0); /* no bframe */
473  put_bits(&pbc, 1, 0); /* reserved */
474  put_bits32(&pbc, track->enc->time_base.den); /* framerate */
475  flush_put_bits(&pbc);
476 
477  av_free(unescaped);
478 
479  return 0;
480 }
481 
482 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
483 {
484  uint8_t buf[7] = { 0 };
485  int ret;
486 
487  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
488  return ret;
489 
490  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
491  ffio_wfourcc(pb, "dvc1");
492  track->vc1_info.struct_offset = avio_tell(pb);
493  avio_write(pb, buf, sizeof(buf));
494  avio_write(pb, track->vos_data, track->vos_len);
495 
496  return 0;
497 }
498 
499 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
500 {
501  avio_wb32(pb, track->vos_len + 8);
502  ffio_wfourcc(pb, "glbl");
503  avio_write(pb, track->vos_data, track->vos_len);
504  return 8 + track->vos_len;
505 }
506 
512 {
513  switch (codec_id) {
516  return 11;
519  return 9;
520  case AV_CODEC_ID_PCM_U8:
521  return 10;
525  return 14;
526  case AV_CODEC_ID_PCM_S8:
530  return 12;
531  default:
532  return 0;
533  }
534 }
535 
536 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
537 {
538  int64_t next_dts;
539 
540  if (cluster_idx >= track->entry)
541  return 0;
542 
543  if (cluster_idx + 1 == track->entry)
544  next_dts = track->track_duration + track->start_dts;
545  else
546  next_dts = track->cluster[cluster_idx + 1].dts;
547 
548  return next_dts - track->cluster[cluster_idx].dts;
549 }
550 
552 {
553  int i, first_duration;
554 
555  /* use 1 for raw PCM */
556  if (!track->audio_vbr)
557  return 1;
558 
559  /* check to see if duration is constant for all clusters */
560  if (!track->entry)
561  return 0;
562  first_duration = get_cluster_duration(track, 0);
563  for (i = 1; i < track->entry; i++) {
564  if (get_cluster_duration(track, i) != first_duration)
565  return 0;
566  }
567  return first_duration;
568 }
569 
570 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
571 {
572  int64_t pos = avio_tell(pb);
573  int version = 0;
574  uint32_t tag = track->tag;
575 
576  if (track->mode == MODE_MOV) {
577  if (mov_get_lpcm_flags(track->enc->codec_id))
578  tag = AV_RL32("lpcm");
579  version = 2;
580  }
581 
582  avio_wb32(pb, 0); /* size */
583  avio_wl32(pb, tag); // store it byteswapped
584  avio_wb32(pb, 0); /* Reserved */
585  avio_wb16(pb, 0); /* Reserved */
586  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
587 
588  /* SoundDescription */
589  avio_wb16(pb, version); /* Version */
590  avio_wb16(pb, 0); /* Revision level */
591  avio_wb32(pb, 0); /* Reserved */
592 
593  if (version == 2) {
594  avio_wb16(pb, 3);
595  avio_wb16(pb, 16);
596  avio_wb16(pb, 0xfffe);
597  avio_wb16(pb, 0);
598  avio_wb32(pb, 0x00010000);
599  avio_wb32(pb, 72);
600  avio_wb64(pb, av_double2int(track->enc->sample_rate));
601  avio_wb32(pb, track->enc->channels);
602  avio_wb32(pb, 0x7F000000);
605  avio_wb32(pb, track->sample_size);
606  avio_wb32(pb, get_samples_per_packet(track));
607  } else {
608  /* reserved for mp4/3gp */
609  avio_wb16(pb, 2);
610  avio_wb16(pb, 16);
611  avio_wb16(pb, 0);
612 
613  avio_wb16(pb, 0); /* packet size (= 0) */
614  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
615  track->enc->sample_rate : 0);
616  avio_wb16(pb, 0); /* Reserved */
617  }
618 
619  if(track->mode == MODE_MOV &&
620  (track->enc->codec_id == AV_CODEC_ID_AAC ||
621  track->enc->codec_id == AV_CODEC_ID_AC3 ||
622  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
623  track->enc->codec_id == AV_CODEC_ID_ALAC ||
624  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
626  mov_write_wave_tag(pb, track);
627  else if(track->tag == MKTAG('m','p','4','a'))
628  mov_write_esds_tag(pb, track);
629  else if(track->enc->codec_id == AV_CODEC_ID_AMR_NB)
630  mov_write_amr_tag(pb, track);
631  else if(track->enc->codec_id == AV_CODEC_ID_AC3)
632  mov_write_ac3_tag(pb, track);
633  else if(track->enc->codec_id == AV_CODEC_ID_ALAC)
634  mov_write_extradata_tag(pb, track);
635  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
636  mov_write_wfex_tag(pb, track);
637  else if (track->vos_len > 0)
638  mov_write_glbl_tag(pb, track);
639 
640  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
641  mov_write_chan_tag(pb, track);
642 
643  return update_size(pb, pos);
644 }
645 
647 {
648  avio_wb32(pb, 0xf); /* size */
649  ffio_wfourcc(pb, "d263");
650  ffio_wfourcc(pb, "FFMP");
651  avio_w8(pb, 0); /* decoder version */
652  /* FIXME use AVCodecContext level/profile, when encoder will set values */
653  avio_w8(pb, 0xa); /* level */
654  avio_w8(pb, 0); /* profile */
655  return 0xf;
656 }
657 
658 /* TODO: No idea about these values */
660 {
661  avio_wb32(pb, 0x15);
662  ffio_wfourcc(pb, "SMI ");
663  ffio_wfourcc(pb, "SEQH");
664  avio_wb32(pb, 0x5);
665  avio_wb32(pb, 0xe2c0211d);
666  avio_wb32(pb, 0xc0000000);
667  avio_w8(pb, 0);
668  return 0x15;
669 }
670 
671 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
672 {
673  int64_t pos = avio_tell(pb);
674 
675  avio_wb32(pb, 0);
676  ffio_wfourcc(pb, "avcC");
677  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
678  return update_size(pb, pos);
679 }
680 
681 /* also used by all avid codecs (dv, imx, meridien) and their variants */
682 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
683 {
684  int i;
685  avio_wb32(pb, 24); /* size */
686  ffio_wfourcc(pb, "ACLR");
687  ffio_wfourcc(pb, "ACLR");
688  ffio_wfourcc(pb, "0001");
689  avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
690  avio_wb32(pb, 0); /* unknown */
691 
692  avio_wb32(pb, 24); /* size */
693  ffio_wfourcc(pb, "APRG");
694  ffio_wfourcc(pb, "APRG");
695  ffio_wfourcc(pb, "0001");
696  avio_wb32(pb, 1); /* unknown */
697  avio_wb32(pb, 0); /* unknown */
698 
699  avio_wb32(pb, 120); /* size */
700  ffio_wfourcc(pb, "ARES");
701  ffio_wfourcc(pb, "ARES");
702  ffio_wfourcc(pb, "0001");
703  avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
704  avio_wb32(pb, track->enc->width);
705  /* values below are based on samples created with quicktime and avid codecs */
706  if (track->vos_data[5] & 2) { // interlaced
707  avio_wb32(pb, track->enc->height/2);
708  avio_wb32(pb, 2); /* unknown */
709  avio_wb32(pb, 0); /* unknown */
710  avio_wb32(pb, 4); /* unknown */
711  } else {
712  avio_wb32(pb, track->enc->height);
713  avio_wb32(pb, 1); /* unknown */
714  avio_wb32(pb, 0); /* unknown */
715  if (track->enc->height == 1080)
716  avio_wb32(pb, 5); /* unknown */
717  else
718  avio_wb32(pb, 6); /* unknown */
719  }
720  /* padding */
721  for (i = 0; i < 10; i++)
722  avio_wb64(pb, 0);
723 
724  /* extra padding for stsd needed */
725  avio_wb32(pb, 0);
726  return 0;
727 }
728 
730 {
731  int tag = track->enc->codec_tag;
732 
734  return 0;
735 
736  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
737  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
738  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
739  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
740  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
741  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
742  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
743 
744  return tag;
745 }
746 
747 static const AVCodecTag codec_ipod_tags[] = {
748  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
749  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
750  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
751  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
752  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
753  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
754  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
755  { AV_CODEC_ID_NONE, 0 },
756 };
757 
759 {
760  int tag = track->enc->codec_tag;
761 
762  // keep original tag for subs, ipod supports both formats
763  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
764  (tag == MKTAG('t','x','3','g') ||
765  tag == MKTAG('t','e','x','t'))))
766  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
767 
768  if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
769  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
770  "Quicktime/Ipod might not play the file\n");
771 
772  return tag;
773 }
774 
776 {
777  int tag;
778 
779  if (track->enc->width == 720) /* SD */
780  if (track->enc->height == 480) /* NTSC */
781  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
782  else tag = MKTAG('d','v','c',' ');
783  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
784  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
785  else tag = MKTAG('d','v','p','p');
786  else if (track->enc->height == 720) /* HD 720 line */
787  if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
788  else tag = MKTAG('d','v','h','p');
789  else if (track->enc->height == 1080) /* HD 1080 line */
790  if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
791  else tag = MKTAG('d','v','h','6');
792  else {
793  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
794  return 0;
795  }
796 
797  return tag;
798 }
799 
800 static const struct {
802  uint32_t tag;
803  unsigned bps;
804 } mov_pix_fmt_tags[] = {
805  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
806  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
807  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
808  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
809  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
810  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
811  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
812  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
813  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
814  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
815  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
816  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
817  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
818  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
819 };
820 
822 {
823  int tag = track->enc->codec_tag;
824  int i;
825 
826  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
827  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
828  tag = mov_pix_fmt_tags[i].tag;
829  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
830  break;
831  }
832  }
833 
834  return tag;
835 }
836 
838 {
839  int tag = track->enc->codec_tag;
840 
841  if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
842  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
843  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
844  track->enc->codec_id == AV_CODEC_ID_H263 ||
845  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
846  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
847  tag = mov_get_dv_codec_tag(s, track);
848  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
849  tag = mov_get_rawvideo_codec_tag(s, track);
850  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
852  if (!tag) { // if no mac fcc found, try with Microsoft tags
854  if (tag)
855  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
856  "the file may be unplayable!\n");
857  }
858  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
860  if (!tag) { // if no mac fcc found, try with Microsoft tags
861  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
862  if (ms_tag) {
863  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
864  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
865  "the file may be unplayable!\n");
866  }
867  }
868  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
870  }
871 
872  return tag;
873 }
874 
875 static const AVCodecTag codec_3gp_tags[] = {
876  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
877  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
878  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
879  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
880  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
881  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
882  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
883  { AV_CODEC_ID_NONE, 0 },
884 };
885 
887 {
888  int tag;
889 
890  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
891  tag = mp4_get_codec_tag(s, track);
892  else if (track->mode == MODE_ISM) {
893  tag = mp4_get_codec_tag(s, track);
894  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
895  tag = MKTAG('w', 'm', 'a', ' ');
896  } else if (track->mode == MODE_IPOD)
897  tag = ipod_get_codec_tag(s, track);
898  else if (track->mode & MODE_3GP)
899  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
900  else
901  tag = mov_get_codec_tag(s, track);
902 
903  return tag;
904 }
905 
911 {
912  avio_wb32(pb, 28);
913  ffio_wfourcc(pb, "uuid");
914  avio_wb32(pb, 0x6b6840f2);
915  avio_wb32(pb, 0x5f244fc5);
916  avio_wb32(pb, 0xba39a51b);
917  avio_wb32(pb, 0xcf0323f3);
918  avio_wb32(pb, 0x0);
919  return 28;
920 }
921 
922 static const uint16_t fiel_data[] = {
923  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
924 };
925 
926 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
927 {
928  unsigned mov_field_order = 0;
929  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
930  mov_field_order = fiel_data[track->enc->field_order];
931  else
932  return 0;
933  avio_wb32(pb, 10);
934  ffio_wfourcc(pb, "fiel");
935  avio_wb16(pb, mov_field_order);
936  return 10;
937 }
938 
940 {
941  int64_t pos = avio_tell(pb);
942  avio_wb32(pb, 0); /* size */
943  avio_wl32(pb, track->tag); // store it byteswapped
944  avio_wb32(pb, 0); /* Reserved */
945  avio_wb16(pb, 0); /* Reserved */
946  avio_wb16(pb, 1); /* Data-reference index */
947 
948  if (track->enc->extradata_size)
949  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
950 
951  return update_size(pb, pos);
952 }
953 
954 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
955 {
956  AVRational sar;
957  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
958  track->enc->sample_aspect_ratio.den, INT_MAX);
959 
960  avio_wb32(pb, 16);
961  ffio_wfourcc(pb, "pasp");
962  avio_wb32(pb, sar.num);
963  avio_wb32(pb, sar.den);
964  return 16;
965 }
966 
967 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
968 {
969  int64_t pos = avio_tell(pb);
970  char compressor_name[32] = { 0 };
971 
972  avio_wb32(pb, 0); /* size */
973  avio_wl32(pb, track->tag); // store it byteswapped
974  avio_wb32(pb, 0); /* Reserved */
975  avio_wb16(pb, 0); /* Reserved */
976  avio_wb16(pb, 1); /* Data-reference index */
977 
978  avio_wb16(pb, 0); /* Codec stream version */
979  avio_wb16(pb, 0); /* Codec stream revision (=0) */
980  if (track->mode == MODE_MOV) {
981  ffio_wfourcc(pb, "FFMP"); /* Vendor */
982  if(track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
983  avio_wb32(pb, 0); /* Temporal Quality */
984  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
985  } else {
986  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
987  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
988  }
989  } else {
990  avio_wb32(pb, 0); /* Reserved */
991  avio_wb32(pb, 0); /* Reserved */
992  avio_wb32(pb, 0); /* Reserved */
993  }
994  avio_wb16(pb, track->enc->width); /* Video width */
995  avio_wb16(pb, track->height); /* Video height */
996  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
997  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
998  avio_wb32(pb, 0); /* Data size (= 0) */
999  avio_wb16(pb, 1); /* Frame count (= 1) */
1000 
1001  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1002  if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
1003  av_strlcpy(compressor_name,track->enc->codec->name,32);
1004  avio_w8(pb, strlen(compressor_name));
1005  avio_write(pb, compressor_name, 31);
1006 
1007  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1008  avio_wb16(pb, track->enc->bits_per_coded_sample);
1009  else
1010  avio_wb16(pb, 0x18); /* Reserved */
1011  avio_wb16(pb, 0xffff); /* Reserved */
1012  if(track->tag == MKTAG('m','p','4','v'))
1013  mov_write_esds_tag(pb, track);
1014  else if(track->enc->codec_id == AV_CODEC_ID_H263)
1015  mov_write_d263_tag(pb);
1016  else if(track->enc->codec_id == AV_CODEC_ID_SVQ3)
1017  mov_write_svq3_tag(pb);
1018  else if(track->enc->codec_id == AV_CODEC_ID_DNXHD)
1019  mov_write_avid_tag(pb, track);
1020  else if(track->enc->codec_id == AV_CODEC_ID_H264) {
1021  mov_write_avcc_tag(pb, track);
1022  if(track->mode == MODE_IPOD)
1024  } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1025  mov_write_fiel_tag(pb, track);
1026  else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1027  mov_write_dvc1_tag(pb, track);
1028  else if (track->vos_len > 0)
1029  mov_write_glbl_tag(pb, track);
1030 
1031  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1032  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1033  mov_write_pasp_tag(pb, track);
1034  }
1035 
1036  return update_size(pb, pos);
1037 }
1038 
1039 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1040 {
1041  int64_t pos = avio_tell(pb);
1042  avio_wb32(pb, 0); /* size */
1043  ffio_wfourcc(pb, "rtp ");
1044  avio_wb32(pb, 0); /* Reserved */
1045  avio_wb16(pb, 0); /* Reserved */
1046  avio_wb16(pb, 1); /* Data-reference index */
1047 
1048  avio_wb16(pb, 1); /* Hint track version */
1049  avio_wb16(pb, 1); /* Highest compatible version */
1050  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1051 
1052  avio_wb32(pb, 12); /* size */
1053  ffio_wfourcc(pb, "tims");
1054  avio_wb32(pb, track->timescale);
1055 
1056  return update_size(pb, pos);
1057 }
1058 
1059 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1060 {
1061  int64_t pos = avio_tell(pb);
1062  avio_wb32(pb, 0); /* size */
1063  ffio_wfourcc(pb, "stsd");
1064  avio_wb32(pb, 0); /* version & flags */
1065  avio_wb32(pb, 1); /* entry count */
1066  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1067  mov_write_video_tag(pb, track);
1068  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1069  mov_write_audio_tag(pb, track);
1070  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1071  mov_write_subtitle_tag(pb, track);
1072  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1073  mov_write_rtp_tag(pb, track);
1074  return update_size(pb, pos);
1075 }
1076 
1077 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1078 {
1079  MOVStts *ctts_entries;
1080  uint32_t entries = 0;
1081  uint32_t atom_size;
1082  int i;
1083 
1084  ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1085  ctts_entries[0].count = 1;
1086  ctts_entries[0].duration = track->cluster[0].cts;
1087  for (i=1; i<track->entry; i++) {
1088  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1089  ctts_entries[entries].count++; /* compress */
1090  } else {
1091  entries++;
1092  ctts_entries[entries].duration = track->cluster[i].cts;
1093  ctts_entries[entries].count = 1;
1094  }
1095  }
1096  entries++; /* last one */
1097  atom_size = 16 + (entries * 8);
1098  avio_wb32(pb, atom_size); /* size */
1099  ffio_wfourcc(pb, "ctts");
1100  avio_wb32(pb, 0); /* version & flags */
1101  avio_wb32(pb, entries); /* entry count */
1102  for (i=0; i<entries; i++) {
1103  avio_wb32(pb, ctts_entries[i].count);
1104  avio_wb32(pb, ctts_entries[i].duration);
1105  }
1106  av_free(ctts_entries);
1107  return atom_size;
1108 }
1109 
1110 /* Time to sample atom */
1111 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1112 {
1113  MOVStts *stts_entries;
1114  uint32_t entries = -1;
1115  uint32_t atom_size;
1116  int i;
1117 
1118  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1119  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1120  stts_entries[0].count = track->sample_count;
1121  stts_entries[0].duration = 1;
1122  entries = 1;
1123  } else {
1124  stts_entries = track->entry ?
1125  av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1126  NULL;
1127  for (i=0; i<track->entry; i++) {
1128  int duration = get_cluster_duration(track, i);
1129  if (i && duration == stts_entries[entries].duration) {
1130  stts_entries[entries].count++; /* compress */
1131  } else {
1132  entries++;
1133  stts_entries[entries].duration = duration;
1134  stts_entries[entries].count = 1;
1135  }
1136  }
1137  entries++; /* last one */
1138  }
1139  atom_size = 16 + (entries * 8);
1140  avio_wb32(pb, atom_size); /* size */
1141  ffio_wfourcc(pb, "stts");
1142  avio_wb32(pb, 0); /* version & flags */
1143  avio_wb32(pb, entries); /* entry count */
1144  for (i=0; i<entries; i++) {
1145  avio_wb32(pb, stts_entries[i].count);
1146  avio_wb32(pb, stts_entries[i].duration);
1147  }
1148  av_free(stts_entries);
1149  return atom_size;
1150 }
1151 
1153 {
1154  avio_wb32(pb, 28); /* size */
1155  ffio_wfourcc(pb, "dref");
1156  avio_wb32(pb, 0); /* version & flags */
1157  avio_wb32(pb, 1); /* entry count */
1158 
1159  avio_wb32(pb, 0xc); /* size */
1160  ffio_wfourcc(pb, "url ");
1161  avio_wb32(pb, 1); /* version & flags */
1162 
1163  return 28;
1164 }
1165 
1166 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1167 {
1168  int64_t pos = avio_tell(pb);
1169  avio_wb32(pb, 0); /* size */
1170  ffio_wfourcc(pb, "stbl");
1171  mov_write_stsd_tag(pb, track);
1172  mov_write_stts_tag(pb, track);
1173  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1174  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1175  track->has_keyframes && track->has_keyframes < track->entry)
1176  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1177  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1179  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1180  track->flags & MOV_TRACK_CTTS)
1181  mov_write_ctts_tag(pb, track);
1182  mov_write_stsc_tag(pb, track);
1183  mov_write_stsz_tag(pb, track);
1184  mov_write_stco_tag(pb, track);
1185  return update_size(pb, pos);
1186 }
1187 
1189 {
1190  int64_t pos = avio_tell(pb);
1191  avio_wb32(pb, 0); /* size */
1192  ffio_wfourcc(pb, "dinf");
1193  mov_write_dref_tag(pb);
1194  return update_size(pb, pos);
1195 }
1196 
1198 {
1199  avio_wb32(pb, 12);
1200  ffio_wfourcc(pb, "nmhd");
1201  avio_wb32(pb, 0);
1202  return 12;
1203 }
1204 
1206 {
1207  avio_wb32(pb, 0x20); /* size */
1208  ffio_wfourcc(pb, "gmhd");
1209  avio_wb32(pb, 0x18); /* gmin size */
1210  ffio_wfourcc(pb, "gmin");/* generic media info */
1211  avio_wb32(pb, 0); /* version & flags */
1212  avio_wb16(pb, 0x40); /* graphics mode = */
1213  avio_wb16(pb, 0x8000); /* opColor (r?) */
1214  avio_wb16(pb, 0x8000); /* opColor (g?) */
1215  avio_wb16(pb, 0x8000); /* opColor (b?) */
1216  avio_wb16(pb, 0); /* balance */
1217  avio_wb16(pb, 0); /* reserved */
1218  return 0x20;
1219 }
1220 
1222 {
1223  avio_wb32(pb, 16); /* size */
1224  ffio_wfourcc(pb, "smhd");
1225  avio_wb32(pb, 0); /* version & flags */
1226  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1227  avio_wb16(pb, 0); /* reserved */
1228  return 16;
1229 }
1230 
1232 {
1233  avio_wb32(pb, 0x14); /* size (always 0x14) */
1234  ffio_wfourcc(pb, "vmhd");
1235  avio_wb32(pb, 0x01); /* version & flags */
1236  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1237  return 0x14;
1238 }
1239 
1240 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1241 {
1242  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1243  int64_t pos = avio_tell(pb);
1244 
1245  if (!track) { /* no media --> data handler */
1246  hdlr = "dhlr";
1247  hdlr_type = "url ";
1248  descr = "DataHandler";
1249  } else {
1250  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1251  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1252  hdlr_type = "vide";
1253  descr = "VideoHandler";
1254  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1255  hdlr_type = "soun";
1256  descr = "SoundHandler";
1257  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1258  if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1259  else hdlr_type = "text";
1260  descr = "SubtitleHandler";
1261  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1262  hdlr_type = "hint";
1263  descr = "HintHandler";
1264  }
1265  }
1266 
1267  avio_wb32(pb, 0); /* size */
1268  ffio_wfourcc(pb, "hdlr");
1269  avio_wb32(pb, 0); /* Version & flags */
1270  avio_write(pb, hdlr, 4); /* handler */
1271  ffio_wfourcc(pb, hdlr_type); /* handler type */
1272  avio_wb32(pb ,0); /* reserved */
1273  avio_wb32(pb ,0); /* reserved */
1274  avio_wb32(pb ,0); /* reserved */
1275  if (!track || track->mode == MODE_MOV)
1276  avio_w8(pb, strlen(descr)); /* pascal string */
1277  avio_write(pb, descr, strlen(descr)); /* handler description */
1278  if (track && track->mode != MODE_MOV)
1279  avio_w8(pb, 0); /* c string */
1280  return update_size(pb, pos);
1281 }
1282 
1284 {
1285  /* This atom must be present, but leaving the values at zero
1286  * seems harmless. */
1287  avio_wb32(pb, 28); /* size */
1288  ffio_wfourcc(pb, "hmhd");
1289  avio_wb32(pb, 0); /* version, flags */
1290  avio_wb16(pb, 0); /* maxPDUsize */
1291  avio_wb16(pb, 0); /* avgPDUsize */
1292  avio_wb32(pb, 0); /* maxbitrate */
1293  avio_wb32(pb, 0); /* avgbitrate */
1294  avio_wb32(pb, 0); /* reserved */
1295  return 28;
1296 }
1297 
1298 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1299 {
1300  int64_t pos = avio_tell(pb);
1301  avio_wb32(pb, 0); /* size */
1302  ffio_wfourcc(pb, "minf");
1303  if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1304  mov_write_vmhd_tag(pb);
1305  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1306  mov_write_smhd_tag(pb);
1307  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1308  if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1309  else mov_write_nmhd_tag(pb);
1310  } else if (track->tag == MKTAG('r','t','p',' ')) {
1311  mov_write_hmhd_tag(pb);
1312  }
1313  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1314  mov_write_hdlr_tag(pb, NULL);
1315  mov_write_dinf_tag(pb);
1316  mov_write_stbl_tag(pb, track);
1317  return update_size(pb, pos);
1318 }
1319 
1320 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1321 {
1322  int version = track->track_duration < INT32_MAX ? 0 : 1;
1323 
1324  if (track->mode == MODE_ISM)
1325  version = 1;
1326 
1327  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1328  ffio_wfourcc(pb, "mdhd");
1329  avio_w8(pb, version);
1330  avio_wb24(pb, 0); /* flags */
1331  if (version == 1) {
1332  avio_wb64(pb, track->time);
1333  avio_wb64(pb, track->time);
1334  } else {
1335  avio_wb32(pb, track->time); /* creation time */
1336  avio_wb32(pb, track->time); /* modification time */
1337  }
1338  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1339  if (!track->entry)
1340  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1341  else
1342  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1343  avio_wb16(pb, track->language); /* language */
1344  avio_wb16(pb, 0); /* reserved (quality) */
1345 
1346  if(version!=0 && track->mode == MODE_MOV){
1348  "FATAL error, file duration too long for timebase, this file will not be\n"
1349  "playable with quicktime. Choose a different timebase or a different\n"
1350  "container format\n");
1351  }
1352 
1353  return 32;
1354 }
1355 
1356 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1357 {
1358  int64_t pos = avio_tell(pb);
1359  avio_wb32(pb, 0); /* size */
1360  ffio_wfourcc(pb, "mdia");
1361  mov_write_mdhd_tag(pb, track);
1362  mov_write_hdlr_tag(pb, track);
1363  mov_write_minf_tag(pb, track);
1364  return update_size(pb, pos);
1365 }
1366 
1367 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1368 {
1370  track->timescale, AV_ROUND_UP);
1371  int version = duration < INT32_MAX ? 0 : 1;
1372 
1373  if (track->mode == MODE_ISM)
1374  version = 1;
1375 
1376  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1377  ffio_wfourcc(pb, "tkhd");
1378  avio_w8(pb, version);
1379  avio_wb24(pb, 0xf); /* flags (track enabled) */
1380  if (version == 1) {
1381  avio_wb64(pb, track->time);
1382  avio_wb64(pb, track->time);
1383  } else {
1384  avio_wb32(pb, track->time); /* creation time */
1385  avio_wb32(pb, track->time); /* modification time */
1386  }
1387  avio_wb32(pb, track->track_id); /* track-id */
1388  avio_wb32(pb, 0); /* reserved */
1389  if (!track->entry)
1390  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1391  else
1392  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1393 
1394  avio_wb32(pb, 0); /* reserved */
1395  avio_wb32(pb, 0); /* reserved */
1396  avio_wb16(pb, 0); /* layer */
1397  avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1398  /* Volume, only for audio */
1399  if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1400  avio_wb16(pb, 0x0100);
1401  else
1402  avio_wb16(pb, 0);
1403  avio_wb16(pb, 0); /* reserved */
1404 
1405  /* Matrix structure */
1406  avio_wb32(pb, 0x00010000); /* reserved */
1407  avio_wb32(pb, 0x0); /* reserved */
1408  avio_wb32(pb, 0x0); /* reserved */
1409  avio_wb32(pb, 0x0); /* reserved */
1410  avio_wb32(pb, 0x00010000); /* reserved */
1411  avio_wb32(pb, 0x0); /* reserved */
1412  avio_wb32(pb, 0x0); /* reserved */
1413  avio_wb32(pb, 0x0); /* reserved */
1414  avio_wb32(pb, 0x40000000); /* reserved */
1415 
1416  /* Track width and height, for visual only */
1417  if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1418  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1419  if(track->mode == MODE_MOV) {
1420  avio_wb32(pb, track->enc->width << 16);
1421  avio_wb32(pb, track->height << 16);
1422  } else {
1423  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1424  if(!sample_aspect_ratio || track->height != track->enc->height)
1425  sample_aspect_ratio = 1;
1426  avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1427  avio_wb32(pb, track->height*0x10000);
1428  }
1429  }
1430  else {
1431  avio_wb32(pb, 0);
1432  avio_wb32(pb, 0);
1433  }
1434  return 0x5c;
1435 }
1436 
1437 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1438 {
1440  track->enc->sample_aspect_ratio.den);
1441 
1442  int64_t pos = avio_tell(pb);
1443 
1444  avio_wb32(pb, 0); /* size */
1445  ffio_wfourcc(pb, "tapt");
1446 
1447  avio_wb32(pb, 20);
1448  ffio_wfourcc(pb, "clef");
1449  avio_wb32(pb, 0);
1450  avio_wb32(pb, width << 16);
1451  avio_wb32(pb, track->enc->height << 16);
1452 
1453  avio_wb32(pb, 20);
1454  ffio_wfourcc(pb, "enof");
1455  avio_wb32(pb, 0);
1456  avio_wb32(pb, track->enc->width << 16);
1457  avio_wb32(pb, track->enc->height << 16);
1458 
1459  return update_size(pb, pos);
1460 }
1461 
1462 // This box seems important for the psp playback ... without it the movie seems to hang
1463 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1464 {
1466  track->timescale, AV_ROUND_UP);
1467  int version = duration < INT32_MAX ? 0 : 1;
1468  int entry_size, entry_count, size;
1469  int64_t delay, start_ct = track->cluster[0].cts;
1470  delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1471  track->timescale, AV_ROUND_DOWN);
1472  version |= delay < INT32_MAX ? 0 : 1;
1473 
1474  entry_size = (version == 1) ? 20 : 12;
1475  entry_count = 1 + (delay > 0);
1476  size = 24 + entry_count * entry_size;
1477 
1478  /* write the atom data */
1479  avio_wb32(pb, size);
1480  ffio_wfourcc(pb, "edts");
1481  avio_wb32(pb, size - 8);
1482  ffio_wfourcc(pb, "elst");
1483  avio_w8(pb, version);
1484  avio_wb24(pb, 0); /* flags */
1485 
1486  avio_wb32(pb, entry_count);
1487  if (delay > 0) { /* add an empty edit to delay presentation */
1488  if (version == 1) {
1489  avio_wb64(pb, delay);
1490  avio_wb64(pb, -1);
1491  } else {
1492  avio_wb32(pb, delay);
1493  avio_wb32(pb, -1);
1494  }
1495  avio_wb32(pb, 0x00010000);
1496  }
1497 
1498  /* duration */
1499  if (version == 1) {
1500  avio_wb64(pb, duration);
1501  avio_wb64(pb, start_ct);
1502  } else {
1503  avio_wb32(pb, duration);
1504  avio_wb32(pb, start_ct);
1505  }
1506  avio_wb32(pb, 0x00010000);
1507  return size;
1508 }
1509 
1510 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1511 {
1512  avio_wb32(pb, 20); // size
1513  ffio_wfourcc(pb, "tref");
1514  avio_wb32(pb, 12); // size (subatom)
1515  avio_wl32(pb, track->tref_tag);
1516  avio_wb32(pb, track->tref_id);
1517  return 20;
1518 }
1519 
1520 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1522 {
1523  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1524  ffio_wfourcc(pb, "uuid");
1525  ffio_wfourcc(pb, "USMT");
1526  avio_wb32(pb, 0x21d24fce);
1527  avio_wb32(pb, 0xbb88695c);
1528  avio_wb32(pb, 0xfac9c740);
1529  avio_wb32(pb, 0x1c); // another size here!
1530  ffio_wfourcc(pb, "MTDT");
1531  avio_wb32(pb, 0x00010012);
1532  avio_wb32(pb, 0x0a);
1533  avio_wb32(pb, 0x55c40000);
1534  avio_wb32(pb, 0x1);
1535  avio_wb32(pb, 0x0);
1536  return 0x34;
1537 }
1538 
1539 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1540 {
1541 
1542  AVFormatContext *ctx = track->rtp_ctx;
1543  char buf[1000] = "";
1544  int len;
1545 
1546  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1547  NULL, NULL, 0, 0, ctx);
1548  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1549  len = strlen(buf);
1550 
1551  avio_wb32(pb, len + 24);
1552  ffio_wfourcc(pb, "udta");
1553  avio_wb32(pb, len + 16);
1554  ffio_wfourcc(pb, "hnti");
1555  avio_wb32(pb, len + 8);
1556  ffio_wfourcc(pb, "sdp ");
1557  avio_write(pb, buf, len);
1558  return len + 24;
1559 }
1560 
1562  MOVTrack *track, AVStream *st)
1563 {
1564  int64_t pos = avio_tell(pb);
1565  avio_wb32(pb, 0); /* size */
1566  ffio_wfourcc(pb, "trak");
1567  mov_write_tkhd_tag(pb, track, st);
1568  if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1569  (track->entry && track->cluster[0].dts)) {
1570  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
1571  mov_write_edts_tag(pb, track); // PSP Movies require edts box
1572  }
1573  if (track->tref_tag)
1574  mov_write_tref_tag(pb, track);
1575  mov_write_mdia_tag(pb, track);
1576  if (track->mode == MODE_PSP)
1577  mov_write_uuid_tag_psp(pb,track); // PSP Movies require this uuid box
1578  if (track->tag == MKTAG('r','t','p',' '))
1579  mov_write_udta_sdp(pb, track);
1580  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1581  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1582  if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1583  mov_write_tapt_tag(pb, track);
1584  };
1585  return update_size(pb, pos);
1586 }
1587 
1589 {
1590  int i, has_audio = 0, has_video = 0;
1591  int64_t pos = avio_tell(pb);
1592  int audio_profile = mov->iods_audio_profile;
1593  int video_profile = mov->iods_video_profile;
1594  for (i = 0; i < mov->nb_streams; i++) {
1595  if(mov->tracks[i].entry > 0) {
1596  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1597  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1598  }
1599  }
1600  if (audio_profile < 0)
1601  audio_profile = 0xFF - has_audio;
1602  if (video_profile < 0)
1603  video_profile = 0xFF - has_video;
1604  avio_wb32(pb, 0x0); /* size */
1605  ffio_wfourcc(pb, "iods");
1606  avio_wb32(pb, 0); /* version & flags */
1607  put_descr(pb, 0x10, 7);
1608  avio_wb16(pb, 0x004f);
1609  avio_w8(pb, 0xff);
1610  avio_w8(pb, 0xff);
1611  avio_w8(pb, audio_profile);
1612  avio_w8(pb, video_profile);
1613  avio_w8(pb, 0xff);
1614  return update_size(pb, pos);
1615 }
1616 
1617 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1618 {
1619  avio_wb32(pb, 0x20); /* size */
1620  ffio_wfourcc(pb, "trex");
1621  avio_wb32(pb, 0); /* version & flags */
1622  avio_wb32(pb, track->track_id); /* track ID */
1623  avio_wb32(pb, 1); /* default sample description index */
1624  avio_wb32(pb, 0); /* default sample duration */
1625  avio_wb32(pb, 0); /* default sample size */
1626  avio_wb32(pb, 0); /* default sample flags */
1627  return 0;
1628 }
1629 
1631 {
1632  int64_t pos = avio_tell(pb);
1633  int i;
1634  avio_wb32(pb, 0x0); /* size */
1635  ffio_wfourcc(pb, "mvex");
1636  for (i = 0; i < mov->nb_streams; i++)
1637  mov_write_trex_tag(pb, &mov->tracks[i]);
1638  return update_size(pb, pos);
1639 }
1640 
1642 {
1643  int max_track_id = 1, i;
1644  int64_t max_track_len_temp, max_track_len = 0;
1645  int version;
1646 
1647  for (i=0; i<mov->nb_streams; i++) {
1648  if(mov->tracks[i].entry > 0) {
1649  max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1650  MOV_TIMESCALE,
1651  mov->tracks[i].timescale,
1652  AV_ROUND_UP);
1653  if (max_track_len < max_track_len_temp)
1654  max_track_len = max_track_len_temp;
1655  if (max_track_id < mov->tracks[i].track_id)
1656  max_track_id = mov->tracks[i].track_id;
1657  }
1658  }
1659 
1660  version = max_track_len < UINT32_MAX ? 0 : 1;
1661  (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1662  ffio_wfourcc(pb, "mvhd");
1663  avio_w8(pb, version);
1664  avio_wb24(pb, 0); /* flags */
1665  if (version == 1) {
1666  avio_wb64(pb, mov->time);
1667  avio_wb64(pb, mov->time);
1668  } else {
1669  avio_wb32(pb, mov->time); /* creation time */
1670  avio_wb32(pb, mov->time); /* modification time */
1671  }
1672  avio_wb32(pb, MOV_TIMESCALE);
1673  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1674 
1675  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1676  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1677  avio_wb16(pb, 0); /* reserved */
1678  avio_wb32(pb, 0); /* reserved */
1679  avio_wb32(pb, 0); /* reserved */
1680 
1681  /* Matrix structure */
1682  avio_wb32(pb, 0x00010000); /* reserved */
1683  avio_wb32(pb, 0x0); /* reserved */
1684  avio_wb32(pb, 0x0); /* reserved */
1685  avio_wb32(pb, 0x0); /* reserved */
1686  avio_wb32(pb, 0x00010000); /* reserved */
1687  avio_wb32(pb, 0x0); /* reserved */
1688  avio_wb32(pb, 0x0); /* reserved */
1689  avio_wb32(pb, 0x0); /* reserved */
1690  avio_wb32(pb, 0x40000000); /* reserved */
1691 
1692  avio_wb32(pb, 0); /* reserved (preview time) */
1693  avio_wb32(pb, 0); /* reserved (preview duration) */
1694  avio_wb32(pb, 0); /* reserved (poster time) */
1695  avio_wb32(pb, 0); /* reserved (selection time) */
1696  avio_wb32(pb, 0); /* reserved (selection duration) */
1697  avio_wb32(pb, 0); /* reserved (current time) */
1698  avio_wb32(pb, max_track_id + 1); /* Next track id */
1699  return 0x6c;
1700 }
1701 
1703  AVFormatContext *s)
1704 {
1705  avio_wb32(pb, 33); /* size */
1706  ffio_wfourcc(pb, "hdlr");
1707  avio_wb32(pb, 0);
1708  avio_wb32(pb, 0);
1709  ffio_wfourcc(pb, "mdir");
1710  ffio_wfourcc(pb, "appl");
1711  avio_wb32(pb, 0);
1712  avio_wb32(pb, 0);
1713  avio_w8(pb, 0);
1714  return 33;
1715 }
1716 
1717 /* helper function to write a data tag with the specified string as data */
1718 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1719 {
1720  if(long_style){
1721  int size = 16 + strlen(data);
1722  avio_wb32(pb, size); /* size */
1723  ffio_wfourcc(pb, "data");
1724  avio_wb32(pb, 1);
1725  avio_wb32(pb, 0);
1726  avio_write(pb, data, strlen(data));
1727  return size;
1728  }else{
1729  if (!lang)
1730  lang = ff_mov_iso639_to_lang("und", 1);
1731  avio_wb16(pb, strlen(data)); /* string length */
1732  avio_wb16(pb, lang);
1733  avio_write(pb, data, strlen(data));
1734  return strlen(data) + 4;
1735  }
1736 }
1737 
1738 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1739  int size = 0;
1740  if (value && value[0]) {
1741  int64_t pos = avio_tell(pb);
1742  avio_wb32(pb, 0); /* size */
1743  ffio_wfourcc(pb, name);
1744  mov_write_string_data_tag(pb, value, lang, long_style);
1745  size = update_size(pb, pos);
1746  }
1747  return size;
1748 }
1749 
1751  const char *name, const char *tag,
1752  int long_style)
1753 {
1754  int l, lang = 0, len, len2;
1755  AVDictionaryEntry *t, *t2 = NULL;
1756  char tag2[16];
1757 
1758  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1759  return 0;
1760 
1761  len = strlen(t->key);
1762  snprintf(tag2, sizeof(tag2), "%s-", tag);
1763  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1764  len2 = strlen(t2->key);
1765  if (len2 == len+4 && !strcmp(t->value, t2->value)
1766  && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1767  lang = l;
1768  break;
1769  }
1770  }
1771  return mov_write_string_tag(pb, name, t->value, lang, long_style);
1772 }
1773 
1774 /* iTunes track number */
1776  AVFormatContext *s)
1777 {
1778  AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1779  int size = 0, track = t ? atoi(t->value) : 0;
1780  if (track) {
1781  avio_wb32(pb, 32); /* size */
1782  ffio_wfourcc(pb, "trkn");
1783  avio_wb32(pb, 24); /* size */
1784  ffio_wfourcc(pb, "data");
1785  avio_wb32(pb, 0); // 8 bytes empty
1786  avio_wb32(pb, 0);
1787  avio_wb16(pb, 0); // empty
1788  avio_wb16(pb, track); // track number
1789  avio_wb16(pb, 0); // total track number
1790  avio_wb16(pb, 0); // empty
1791  size = 32;
1792  }
1793  return size;
1794 }
1795 
1796 /* iTunes meta data list */
1798  AVFormatContext *s)
1799 {
1800  int64_t pos = avio_tell(pb);
1801  avio_wb32(pb, 0); /* size */
1802  ffio_wfourcc(pb, "ilst");
1803  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
1804  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
1805  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1806  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1807  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
1808  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
1809  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1810  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
1811  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
1812  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1813  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1814  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
1815  mov_write_string_metadata(s, pb, "desc", "description",1);
1816  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
1817  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
1818  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
1819  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
1820  mov_write_trkn_tag(pb, mov, s);
1821  return update_size(pb, pos);
1822 }
1823 
1824 /* iTunes meta data tag */
1826  AVFormatContext *s)
1827 {
1828  int size = 0;
1829  int64_t pos = avio_tell(pb);
1830  avio_wb32(pb, 0); /* size */
1831  ffio_wfourcc(pb, "meta");
1832  avio_wb32(pb, 0);
1833  mov_write_itunes_hdlr_tag(pb, mov, s);
1834  mov_write_ilst_tag(pb, mov, s);
1835  size = update_size(pb, pos);
1836  return size;
1837 }
1838 
1839 static int utf8len(const uint8_t *b)
1840 {
1841  int len=0;
1842  int val;
1843  while(*b){
1844  GET_UTF8(val, *b++, return -1;)
1845  len++;
1846  }
1847  return len;
1848 }
1849 
1850 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1851 {
1852  int val;
1853  while(*b){
1854  GET_UTF8(val, *b++, return -1;)
1855  avio_wb16(pb, val);
1856  }
1857  avio_wb16(pb, 0x00);
1858  return 0;
1859 }
1860 
1861 static uint16_t language_code(const char *str)
1862 {
1863  return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
1864 }
1865 
1867  const char *tag, const char *str)
1868 {
1869  int64_t pos = avio_tell(pb);
1870  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
1871  if (!t || !utf8len(t->value))
1872  return 0;
1873  avio_wb32(pb, 0); /* size */
1874  ffio_wfourcc(pb, tag); /* type */
1875  avio_wb32(pb, 0); /* version + flags */
1876  if (!strcmp(tag, "yrrc"))
1877  avio_wb16(pb, atoi(t->value));
1878  else {
1879  avio_wb16(pb, language_code("eng")); /* language */
1880  avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
1881  if (!strcmp(tag, "albm") &&
1882  (t = av_dict_get(s->metadata, "track", NULL, 0)))
1883  avio_w8(pb, atoi(t->value));
1884  }
1885  return update_size(pb, pos);
1886 }
1887 
1889 {
1890  int64_t pos = avio_tell(pb);
1891  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1892 
1893  avio_wb32(pb, 0); // size
1894  ffio_wfourcc(pb, "chpl");
1895  avio_wb32(pb, 0x01000000); // version + flags
1896  avio_wb32(pb, 0); // unknown
1897  avio_w8(pb, nb_chapters);
1898 
1899  for (i = 0; i < nb_chapters; i++) {
1900  AVChapter *c = s->chapters[i];
1902  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1903 
1904  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1905  int len = FFMIN(strlen(t->value), 255);
1906  avio_w8(pb, len);
1907  avio_write(pb, t->value, len);
1908  } else
1909  avio_w8(pb, 0);
1910  }
1911  return update_size(pb, pos);
1912 }
1913 
1915  AVFormatContext *s)
1916 {
1917  AVIOContext *pb_buf;
1918  int i, ret, size;
1919  uint8_t *buf;
1920 
1921  for (i = 0; i < s->nb_streams; i++)
1922  if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1923  return 0;
1924  }
1925 
1926  ret = avio_open_dyn_buf(&pb_buf);
1927  if(ret < 0)
1928  return ret;
1929 
1930  if (mov->mode & MODE_3GP) {
1931  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1932  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1933  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1934  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1935  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1936  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1937  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1938  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1939  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1940  mov_write_string_metadata(s, pb_buf, "\251ART", "artist" , 0);
1941  mov_write_string_metadata(s, pb_buf, "\251nam", "title" , 0);
1942  mov_write_string_metadata(s, pb_buf, "\251aut", "author" , 0);
1943  mov_write_string_metadata(s, pb_buf, "\251alb", "album" , 0);
1944  mov_write_string_metadata(s, pb_buf, "\251day", "date" , 0);
1945  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder" , 0);
1946  mov_write_string_metadata(s, pb_buf, "\251des", "comment" , 0);
1947  mov_write_string_metadata(s, pb_buf, "\251gen", "genre" , 0);
1948  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright" , 0);
1949  } else {
1950  /* iTunes meta data */
1951  mov_write_meta_tag(pb_buf, mov, s);
1952  }
1953 
1954  if (s->nb_chapters)
1955  mov_write_chpl_tag(pb_buf, s);
1956 
1957  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1958  avio_wb32(pb, size+8);
1959  ffio_wfourcc(pb, "udta");
1960  avio_write(pb, buf, size);
1961  }
1962  av_free(buf);
1963 
1964  return 0;
1965 }
1966 
1968  const char *str, const char *lang, int type)
1969 {
1970  int len = utf8len(str)+1;
1971  if(len<=0)
1972  return;
1973  avio_wb16(pb, len*2+10); /* size */
1974  avio_wb32(pb, type); /* type */
1975  avio_wb16(pb, language_code(lang)); /* language */
1976  avio_wb16(pb, 0x01); /* ? */
1977  ascii_to_wc(pb, str);
1978 }
1979 
1981 {
1982  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
1983  int64_t pos, pos2;
1984 
1985  if (title) {
1986  pos = avio_tell(pb);
1987  avio_wb32(pb, 0); /* size placeholder*/
1988  ffio_wfourcc(pb, "uuid");
1989  ffio_wfourcc(pb, "USMT");
1990  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1991  avio_wb32(pb, 0xbb88695c);
1992  avio_wb32(pb, 0xfac9c740);
1993 
1994  pos2 = avio_tell(pb);
1995  avio_wb32(pb, 0); /* size placeholder*/
1996  ffio_wfourcc(pb, "MTDT");
1997  avio_wb16(pb, 4);
1998 
1999  // ?
2000  avio_wb16(pb, 0x0C); /* size */
2001  avio_wb32(pb, 0x0B); /* type */
2002  avio_wb16(pb, language_code("und")); /* language */
2003  avio_wb16(pb, 0x0); /* ? */
2004  avio_wb16(pb, 0x021C); /* data */
2005 
2006  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2007  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2008  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2009 
2010  update_size(pb, pos2);
2011  return update_size(pb, pos);
2012  }
2013 
2014  return 0;
2015 }
2016 
2018  AVFormatContext *s)
2019 {
2020  int i;
2021  int64_t pos = avio_tell(pb);
2022  avio_wb32(pb, 0); /* size placeholder*/
2023  ffio_wfourcc(pb, "moov");
2024 
2025  for (i=0; i<mov->nb_streams; i++) {
2026  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2027  continue;
2028 
2029  mov->tracks[i].time = mov->time;
2030  mov->tracks[i].track_id = i+1;
2031  }
2032 
2033  if (mov->chapter_track)
2034  for (i=0; i<s->nb_streams; i++) {
2035  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2036  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2037  }
2038  for (i = 0; i < mov->nb_streams; i++) {
2039  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2040  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2041  mov->tracks[i].tref_id =
2042  mov->tracks[mov->tracks[i].src_track].track_id;
2043  }
2044  }
2045 
2046  mov_write_mvhd_tag(pb, mov);
2047  if (mov->mode != MODE_MOV && !mov->iods_skip)
2048  mov_write_iods_tag(pb, mov);
2049  for (i=0; i<mov->nb_streams; i++) {
2050  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2051  mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2052  }
2053  }
2054  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2055  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2056 
2057  if (mov->mode == MODE_PSP)
2058  mov_write_uuidusmt_tag(pb, s);
2059  else
2060  mov_write_udta_tag(pb, mov, s);
2061 
2062  return update_size(pb, pos);
2063 }
2064 
2065 static void param_write_int(AVIOContext *pb, const char *name, int value)
2066 {
2067  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2068 }
2069 
2070 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2071 {
2072  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2073 }
2074 
2075 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2076 {
2077  char buf[150];
2078  len = FFMIN(sizeof(buf)/2 - 1, len);
2079  ff_data_to_hex(buf, value, len, 0);
2080  buf[2*len] = '\0';
2081  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2082 }
2083 
2085 {
2086  int64_t pos = avio_tell(pb);
2087  int i;
2088  const uint8_t uuid[] = {
2089  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2090  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2091  };
2092 
2093  avio_wb32(pb, 0);
2094  ffio_wfourcc(pb, "uuid");
2095  avio_write(pb, uuid, sizeof(uuid));
2096  avio_wb32(pb, 0);
2097 
2098  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2099  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2100  avio_printf(pb, "<head>\n");
2101  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2103  avio_printf(pb, "</head>\n");
2104  avio_printf(pb, "<body>\n");
2105  avio_printf(pb, "<switch>\n");
2106  for (i = 0; i < mov->nb_streams; i++) {
2107  MOVTrack *track = &mov->tracks[i];
2108  const char *type;
2109  /* track->track_id is initialized in write_moov, and thus isn't known
2110  * here yet */
2111  int track_id = i + 1;
2112 
2113  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2114  type = "video";
2115  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2116  type = "audio";
2117  } else {
2118  continue;
2119  }
2120  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2121  track->enc->bit_rate);
2122  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2123  param_write_int(pb, "trackID", track_id);
2124  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2125  if (track->enc->codec_id == AV_CODEC_ID_H264) {
2126  uint8_t *ptr;
2127  int size = track->enc->extradata_size;
2128  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2129  &size)) {
2130  param_write_hex(pb, "CodecPrivateData",
2131  ptr ? ptr : track->enc->extradata,
2132  size);
2133  av_free(ptr);
2134  }
2135  param_write_string(pb, "FourCC", "H264");
2136  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2137  param_write_string(pb, "FourCC", "WVC1");
2138  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2139  track->enc->extradata_size);
2140  }
2141  param_write_int(pb, "MaxWidth", track->enc->width);
2142  param_write_int(pb, "MaxHeight", track->enc->height);
2143  param_write_int(pb, "DisplayWidth", track->enc->width);
2144  param_write_int(pb, "DisplayHeight", track->enc->height);
2145  } else {
2146  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2147  param_write_string(pb, "FourCC", "AACL");
2148  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2149  param_write_string(pb, "FourCC", "WMAP");
2150  }
2151  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2152  track->enc->extradata_size);
2154  track->enc->codec_id));
2155  param_write_int(pb, "Channels", track->enc->channels);
2156  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2157  param_write_int(pb, "BitsPerSample", 16);
2158  param_write_int(pb, "PacketSize", track->enc->block_align ?
2159  track->enc->block_align : 4);
2160  }
2161  avio_printf(pb, "</%s>\n", type);
2162  }
2163  avio_printf(pb, "</switch>\n");
2164  avio_printf(pb, "</body>\n");
2165  avio_printf(pb, "</smil>\n");
2166 
2167  return update_size(pb, pos);
2168 }
2169 
2171 {
2172  avio_wb32(pb, 16);
2173  ffio_wfourcc(pb, "mfhd");
2174  avio_wb32(pb, 0);
2175  avio_wb32(pb, mov->fragments);
2176  return 0;
2177 }
2178 
2179 static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
2180  int64_t moof_offset)
2181 {
2182  int64_t pos = avio_tell(pb);
2185  if (!track->entry) {
2186  flags |= MOV_TFHD_DURATION_IS_EMPTY;
2187  } else {
2188  flags |= MOV_TFHD_DEFAULT_FLAGS;
2189  }
2190 
2191  /* Don't set a default sample size, the silverlight player refuses
2192  * to play files with that set. Don't set a default sample duration,
2193  * WMP freaks out if it is set. */
2194  if (track->mode == MODE_ISM)
2196 
2197  avio_wb32(pb, 0); /* size placeholder */
2198  ffio_wfourcc(pb, "tfhd");
2199  avio_w8(pb, 0); /* version */
2200  avio_wb24(pb, flags);
2201 
2202  avio_wb32(pb, track->track_id); /* track-id */
2203  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2204  avio_wb64(pb, moof_offset);
2205  if (flags & MOV_TFHD_DEFAULT_DURATION) {
2206  track->default_duration = get_cluster_duration(track, 0);
2207  avio_wb32(pb, track->default_duration);
2208  }
2209  if (flags & MOV_TFHD_DEFAULT_SIZE) {
2210  track->default_size = track->entry ? track->cluster[0].size : 1;
2211  avio_wb32(pb, track->default_size);
2212  } else
2213  track->default_size = -1;
2214 
2215  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2216  track->default_sample_flags =
2217  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2220  avio_wb32(pb, track->default_sample_flags);
2221  }
2222 
2223  return update_size(pb, pos);
2224 }
2225 
2226 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2227 {
2230 }
2231 
2232 static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track)
2233 {
2234  int64_t pos = avio_tell(pb);
2235  uint32_t flags = MOV_TRUN_DATA_OFFSET;
2236  int i;
2237 
2238  for (i = 0; i < track->entry; i++) {
2239  if (get_cluster_duration(track, i) != track->default_duration)
2240  flags |= MOV_TRUN_SAMPLE_DURATION;
2241  if (track->cluster[i].size != track->default_size)
2242  flags |= MOV_TRUN_SAMPLE_SIZE;
2243  if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2244  flags |= MOV_TRUN_SAMPLE_FLAGS;
2245  }
2246  if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2247  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2248  if (track->flags & MOV_TRACK_CTTS)
2249  flags |= MOV_TRUN_SAMPLE_CTS;
2250 
2251  avio_wb32(pb, 0); /* size placeholder */
2252  ffio_wfourcc(pb, "trun");
2253  avio_w8(pb, 0); /* version */
2254  avio_wb24(pb, flags);
2255 
2256  avio_wb32(pb, track->entry); /* sample count */
2257  track->moof_size_offset = avio_tell(pb);
2258  avio_wb32(pb, 0); /* data offset */
2259  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2260  avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2261 
2262  for (i = 0; i < track->entry; i++) {
2263  if (flags & MOV_TRUN_SAMPLE_DURATION)
2264  avio_wb32(pb, get_cluster_duration(track, i));
2265  if (flags & MOV_TRUN_SAMPLE_SIZE)
2266  avio_wb32(pb, track->cluster[i].size);
2267  if (flags & MOV_TRUN_SAMPLE_FLAGS)
2268  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2269  if (flags & MOV_TRUN_SAMPLE_CTS)
2270  avio_wb32(pb, track->cluster[i].cts);
2271  }
2272 
2273  return update_size(pb, pos);
2274 }
2275 
2276 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2277 {
2278  int64_t pos = avio_tell(pb);
2279  const uint8_t uuid[] = {
2280  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2281  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2282  };
2283 
2284  avio_wb32(pb, 0); /* size placeholder */
2285  ffio_wfourcc(pb, "uuid");
2286  avio_write(pb, uuid, sizeof(uuid));
2287  avio_w8(pb, 1);
2288  avio_wb24(pb, 0);
2289  avio_wb64(pb, track->frag_start);
2290  avio_wb64(pb, track->start_dts + track->track_duration -
2291  track->cluster[0].dts);
2292 
2293  return update_size(pb, pos);
2294 }
2295 
2297  MOVTrack *track, int entry)
2298 {
2299  int n = track->nb_frag_info - 1 - entry, i;
2300  int size = 8 + 16 + 4 + 1 + 16*n;
2301  const uint8_t uuid[] = {
2302  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2303  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2304  };
2305 
2306  if (entry < 0)
2307  return 0;
2308 
2309  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2310  avio_wb32(pb, size);
2311  ffio_wfourcc(pb, "uuid");
2312  avio_write(pb, uuid, sizeof(uuid));
2313  avio_w8(pb, 1);
2314  avio_wb24(pb, 0);
2315  avio_w8(pb, n);
2316  for (i = 0; i < n; i++) {
2317  int index = entry + 1 + i;
2318  avio_wb64(pb, track->frag_info[index].time);
2319  avio_wb64(pb, track->frag_info[index].duration);
2320  }
2321  if (n < mov->ism_lookahead) {
2322  int free_size = 16*(mov->ism_lookahead - n);
2323  avio_wb32(pb, free_size);
2324  ffio_wfourcc(pb, "free");
2325  for (i = 0; i < free_size - 8; i++)
2326  avio_w8(pb, 0);
2327  }
2328 
2329  return 0;
2330 }
2331 
2333  MOVTrack *track)
2334 {
2335  int64_t pos = avio_tell(pb);
2336  int i;
2337  for (i = 0; i < mov->ism_lookahead; i++) {
2338  /* Update the tfrf tag for the last ism_lookahead fragments,
2339  * nb_frag_info - 1 is the next fragment to be written. */
2340  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2341  }
2342  avio_seek(pb, pos, SEEK_SET);
2343  return 0;
2344 }
2345 
2347  MOVTrack *track, int64_t moof_offset)
2348 {
2349  int64_t pos = avio_tell(pb);
2350  avio_wb32(pb, 0); /* size placeholder */
2351  ffio_wfourcc(pb, "traf");
2352 
2353  mov_write_tfhd_tag(pb, track, moof_offset);
2354  mov_write_trun_tag(pb, track);
2355  if (mov->mode == MODE_ISM) {
2356  mov_write_tfxd_tag(pb, track);
2357 
2358  if (mov->ism_lookahead) {
2359  int i, size = 16 + 4 + 1 + 16*mov->ism_lookahead;
2360 
2361  track->tfrf_offset = avio_tell(pb);
2362  avio_wb32(pb, 8 + size);
2363  ffio_wfourcc(pb, "free");
2364  for (i = 0; i < size; i++)
2365  avio_w8(pb, 0);
2366  }
2367  }
2368 
2369  return update_size(pb, pos);
2370 }
2371 
2372 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2373 {
2374  int64_t pos = avio_tell(pb), end;
2375  int i, moof_size;
2376 
2377  avio_wb32(pb, 0); /* size placeholder */
2378  ffio_wfourcc(pb, "moof");
2379 
2380  mov_write_mfhd_tag(pb, mov);
2381  for (i = 0; i < mov->nb_streams; i++) {
2382  MOVTrack *track = &mov->tracks[i];
2383  if (tracks >= 0 && i != tracks)
2384  continue;
2385  if (!track->entry)
2386  continue;
2387  mov_write_traf_tag(pb, mov, track, pos);
2388  }
2389 
2390  end = avio_tell(pb);
2391  moof_size = end - pos;
2392  for (i = 0; i < mov->nb_streams; i++) {
2393  MOVTrack *track = &mov->tracks[i];
2394  if (tracks >= 0 && i != tracks)
2395  continue;
2396  if (!track->entry)
2397  continue;
2398  avio_seek(pb, mov->tracks[i].moof_size_offset, SEEK_SET);
2399  avio_wb32(pb, moof_size + 8 + mov->tracks[i].data_offset);
2400  }
2401  avio_seek(pb, end, SEEK_SET);
2402 
2403  return update_size(pb, pos);
2404 }
2405 
2406 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2407 {
2408  int64_t pos = avio_tell(pb);
2409  int i;
2410 
2411  avio_wb32(pb, 0); /* size placeholder */
2412  ffio_wfourcc(pb, "tfra");
2413  avio_w8(pb, 1); /* version */
2414  avio_wb24(pb, 0);
2415 
2416  avio_wb32(pb, track->track_id);
2417  avio_wb32(pb, 0); /* length of traf/trun/sample num */
2418  avio_wb32(pb, track->nb_frag_info);
2419  for (i = 0; i < track->nb_frag_info; i++) {
2420  avio_wb64(pb, track->frag_info[i].time);
2421  avio_wb64(pb, track->frag_info[i].offset);
2422  avio_w8(pb, 1); /* traf number */
2423  avio_w8(pb, 1); /* trun number */
2424  avio_w8(pb, 1); /* sample number */
2425  }
2426 
2427  return update_size(pb, pos);
2428 }
2429 
2431 {
2432  int64_t pos = avio_tell(pb);
2433  int i;
2434 
2435  avio_wb32(pb, 0); /* size placeholder */
2436  ffio_wfourcc(pb, "mfra");
2437  /* An empty mfra atom is enough to indicate to the publishing point that
2438  * the stream has ended. */
2439  if (mov->flags & FF_MOV_FLAG_ISML)
2440  return update_size(pb, pos);
2441 
2442  for (i = 0; i < mov->nb_streams; i++) {
2443  MOVTrack *track = &mov->tracks[i];
2444  if (track->nb_frag_info)
2445  mov_write_tfra_tag(pb, track);
2446  }
2447 
2448  avio_wb32(pb, 16);
2449  ffio_wfourcc(pb, "mfro");
2450  avio_wb32(pb, 0); /* version + flags */
2451  avio_wb32(pb, avio_tell(pb) + 4 - pos);
2452 
2453  return update_size(pb, pos);
2454 }
2455 
2457 {
2458  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2459  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2460 
2461  mov->mdat_pos = avio_tell(pb);
2462  avio_wb32(pb, 0); /* size placeholder*/
2463  ffio_wfourcc(pb, "mdat");
2464  return 0;
2465 }
2466 
2467 /* TODO: This needs to be more general */
2469 {
2470  MOVMuxContext *mov = s->priv_data;
2471  int64_t pos = avio_tell(pb);
2472  int has_h264 = 0, has_video = 0;
2473  int minor = 0x200;
2474  int i;
2475 
2476  for (i = 0; i < s->nb_streams; i++) {
2477  AVStream *st = s->streams[i];
2478  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2479  has_video = 1;
2480  if (st->codec->codec_id == AV_CODEC_ID_H264)
2481  has_h264 = 1;
2482  }
2483 
2484  avio_wb32(pb, 0); /* size */
2485  ffio_wfourcc(pb, "ftyp");
2486 
2487  if (mov->mode == MODE_3GP) {
2488  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2489  minor = has_h264 ? 0x100 : 0x200;
2490  } else if (mov->mode & MODE_3G2) {
2491  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2492  minor = has_h264 ? 0x20000 : 0x10000;
2493  }else if (mov->mode == MODE_PSP)
2494  ffio_wfourcc(pb, "MSNV");
2495  else if (mov->mode == MODE_MP4)
2496  ffio_wfourcc(pb, "isom");
2497  else if (mov->mode == MODE_IPOD)
2498  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2499  else if (mov->mode == MODE_ISM)
2500  ffio_wfourcc(pb, "isml");
2501  else
2502  ffio_wfourcc(pb, "qt ");
2503 
2504  avio_wb32(pb, minor);
2505 
2506  if(mov->mode == MODE_MOV)
2507  ffio_wfourcc(pb, "qt ");
2508  else if (mov->mode == MODE_ISM) {
2509  ffio_wfourcc(pb, "piff");
2510  ffio_wfourcc(pb, "iso2");
2511  } else {
2512  ffio_wfourcc(pb, "isom");
2513  ffio_wfourcc(pb, "iso2");
2514  if(has_h264)
2515  ffio_wfourcc(pb, "avc1");
2516  }
2517 
2518  if (mov->mode == MODE_3GP)
2519  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2520  else if (mov->mode & MODE_3G2)
2521  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2522  else if (mov->mode == MODE_PSP)
2523  ffio_wfourcc(pb, "MSNV");
2524  else if (mov->mode == MODE_MP4)
2525  ffio_wfourcc(pb, "mp41");
2526  return update_size(pb, pos);
2527 }
2528 
2530 {
2531  AVCodecContext *video_codec = s->streams[0]->codec;
2532  AVCodecContext *audio_codec = s->streams[1]->codec;
2533  int audio_rate = audio_codec->sample_rate;
2534  int frame_rate = ((video_codec->time_base.den) * (0x10000))/ (video_codec->time_base.num);
2535  int audio_kbitrate = audio_codec->bit_rate / 1000;
2536  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2537 
2538  avio_wb32(pb, 0x94); /* size */
2539  ffio_wfourcc(pb, "uuid");
2540  ffio_wfourcc(pb, "PROF");
2541 
2542  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2543  avio_wb32(pb, 0xbb88695c);
2544  avio_wb32(pb, 0xfac9c740);
2545 
2546  avio_wb32(pb, 0x0); /* ? */
2547  avio_wb32(pb, 0x3); /* 3 sections ? */
2548 
2549  avio_wb32(pb, 0x14); /* size */
2550  ffio_wfourcc(pb, "FPRF");
2551  avio_wb32(pb, 0x0); /* ? */
2552  avio_wb32(pb, 0x0); /* ? */
2553  avio_wb32(pb, 0x0); /* ? */
2554 
2555  avio_wb32(pb, 0x2c); /* size */
2556  ffio_wfourcc(pb, "APRF");/* audio */
2557  avio_wb32(pb, 0x0);
2558  avio_wb32(pb, 0x2); /* TrackID */
2559  ffio_wfourcc(pb, "mp4a");
2560  avio_wb32(pb, 0x20f);
2561  avio_wb32(pb, 0x0);
2562  avio_wb32(pb, audio_kbitrate);
2563  avio_wb32(pb, audio_kbitrate);
2564  avio_wb32(pb, audio_rate);
2565  avio_wb32(pb, audio_codec->channels);
2566 
2567  avio_wb32(pb, 0x34); /* size */
2568  ffio_wfourcc(pb, "VPRF"); /* video */
2569  avio_wb32(pb, 0x0);
2570  avio_wb32(pb, 0x1); /* TrackID */
2571  if (video_codec->codec_id == AV_CODEC_ID_H264) {
2572  ffio_wfourcc(pb, "avc1");
2573  avio_wb16(pb, 0x014D);
2574  avio_wb16(pb, 0x0015);
2575  } else {
2576  ffio_wfourcc(pb, "mp4v");
2577  avio_wb16(pb, 0x0000);
2578  avio_wb16(pb, 0x0103);
2579  }
2580  avio_wb32(pb, 0x0);
2581  avio_wb32(pb, video_kbitrate);
2582  avio_wb32(pb, video_kbitrate);
2583  avio_wb32(pb, frame_rate);
2584  avio_wb32(pb, frame_rate);
2585  avio_wb16(pb, video_codec->width);
2586  avio_wb16(pb, video_codec->height);
2587  avio_wb32(pb, 0x010001); /* ? */
2588 }
2589 
2590 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2591 {
2592  uint32_t c = -1;
2593  int i, closed_gop = 0;
2594 
2595  for (i = 0; i < pkt->size - 4; i++) {
2596  c = (c<<8) + pkt->data[i];
2597  if (c == 0x1b8) { // gop
2598  closed_gop = pkt->data[i+4]>>6 & 0x01;
2599  } else if (c == 0x100) { // pic
2600  int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
2601  if (!temp_ref || closed_gop) // I picture is not reordered
2602  *flags = MOV_SYNC_SAMPLE;
2603  else
2604  *flags = MOV_PARTIAL_SYNC_SAMPLE;
2605  break;
2606  }
2607  }
2608  return 0;
2609 }
2610 
2611 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2612 {
2613  const uint8_t *start, *next, *end = pkt->data + pkt->size;
2614  int seq = 0, entry = 0;
2615  int key = pkt->flags & AV_PKT_FLAG_KEY;
2616  start = find_next_marker(pkt->data, end);
2617  for (next = start; next < end; start = next) {
2618  next = find_next_marker(start + 4, end);
2619  switch (AV_RB32(start)) {
2620  case VC1_CODE_SEQHDR:
2621  seq = 1;
2622  break;
2623  case VC1_CODE_ENTRYPOINT:
2624  entry = 1;
2625  break;
2626  case VC1_CODE_SLICE:
2627  trk->vc1_info.slices = 1;
2628  break;
2629  }
2630  }
2631  if (!trk->entry && !fragment) {
2632  /* First packet in first fragment */
2633  trk->vc1_info.first_packet_seq = seq;
2634  trk->vc1_info.first_packet_entry = entry;
2635  } else if ((seq && !trk->vc1_info.packet_seq) ||
2636  (entry && !trk->vc1_info.packet_entry)) {
2637  int i;
2638  for (i = 0; i < trk->entry; i++)
2639  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2640  trk->has_keyframes = 0;
2641  if (seq)
2642  trk->vc1_info.packet_seq = 1;
2643  if (entry)
2644  trk->vc1_info.packet_entry = 1;
2645  if (!fragment) {
2646  /* First fragment */
2647  if ((!seq || trk->vc1_info.first_packet_seq) &&
2648  (!entry || trk->vc1_info.first_packet_entry)) {
2649  /* First packet had the same headers as this one, readd the
2650  * sync sample flag. */
2651  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2652  trk->has_keyframes = 1;
2653  }
2654  }
2655  }
2656  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2657  key = seq && entry;
2658  else if (trk->vc1_info.packet_seq)
2659  key = seq;
2660  else if (trk->vc1_info.packet_entry)
2661  key = entry;
2662  if (key) {
2663  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2664  trk->has_keyframes++;
2665  }
2666 }
2667 
2669 {
2670  MOVMuxContext *mov = s->priv_data;
2671  int i, first_track = -1;
2672  int64_t mdat_size = 0;
2673 
2674  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2675  return 0;
2676 
2677  if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2678  int64_t pos = avio_tell(s->pb);
2679  int ret;
2680  AVIOContext *moov_buf;
2681  uint8_t *buf;
2682  int buf_size;
2683 
2684  for (i = 0; i < mov->nb_streams; i++)
2685  if (!mov->tracks[i].entry)
2686  break;
2687  /* Don't write the initial moov unless all tracks have data */
2688  if (i < mov->nb_streams)
2689  return 0;
2690 
2691  if ((ret = avio_open_dyn_buf(&moov_buf)) < 0)
2692  return ret;
2693  mov_write_moov_tag(moov_buf, mov, s);
2694  buf_size = avio_close_dyn_buf(moov_buf, &buf);
2695  av_free(buf);
2696  for (i = 0; i < mov->nb_streams; i++)
2697  mov->tracks[i].data_offset = pos + buf_size + 8;
2698 
2699  mov_write_moov_tag(s->pb, mov, s);
2700 
2701  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
2702  mov->mdat_buf = NULL;
2703  avio_wb32(s->pb, buf_size + 8);
2704  ffio_wfourcc(s->pb, "mdat");
2705  avio_write(s->pb, buf, buf_size);
2706  av_free(buf);
2707 
2708  mov->fragments++;
2709  mov->mdat_size = 0;
2710  for (i = 0; i < mov->nb_streams; i++) {
2711  if (mov->tracks[i].entry)
2712  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
2713  mov->tracks[i].track_duration -
2714  mov->tracks[i].cluster[0].dts;
2715  mov->tracks[i].entry = 0;
2716  }
2717  avio_flush(s->pb);
2718  return 0;
2719  }
2720 
2721  for (i = 0; i < mov->nb_streams; i++) {
2722  MOVTrack *track = &mov->tracks[i];
2723  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
2724  track->data_offset = 0;
2725  else
2726  track->data_offset = mdat_size;
2727  if (!track->mdat_buf)
2728  continue;
2729  mdat_size += avio_tell(track->mdat_buf);
2730  if (first_track < 0)
2731  first_track = i;
2732  }
2733 
2734  if (!mdat_size)
2735  return 0;
2736 
2737  for (i = 0; i < mov->nb_streams; i++) {
2738  MOVTrack *track = &mov->tracks[i];
2739  int buf_size, write_moof = 1, moof_tracks = -1;
2740  uint8_t *buf;
2741  int64_t duration = 0;
2742 
2743  if (track->entry)
2744  duration = track->start_dts + track->track_duration -
2745  track->cluster[0].dts;
2746  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
2747  if (!track->mdat_buf)
2748  continue;
2749  mdat_size = avio_tell(track->mdat_buf);
2750  moof_tracks = i;
2751  } else {
2752  write_moof = i == first_track;
2753  }
2754 
2755  if (write_moof) {
2756  MOVFragmentInfo *info;
2757  avio_flush(s->pb);
2758  track->nb_frag_info++;
2759  track->frag_info = av_realloc(track->frag_info,
2760  sizeof(*track->frag_info) *
2761  track->nb_frag_info);
2762  info = &track->frag_info[track->nb_frag_info - 1];
2763  info->offset = avio_tell(s->pb);
2764  info->time = mov->tracks[i].frag_start;
2765  info->duration = duration;
2766  mov_write_tfrf_tags(s->pb, mov, track);
2767 
2768  mov_write_moof_tag(s->pb, mov, moof_tracks);
2769  info->tfrf_offset = track->tfrf_offset;
2770  mov->fragments++;
2771 
2772  avio_wb32(s->pb, mdat_size + 8);
2773  ffio_wfourcc(s->pb, "mdat");
2774  }
2775 
2776  if (track->entry)
2777  track->frag_start += duration;
2778  track->entry = 0;
2779  if (!track->mdat_buf)
2780  continue;
2781  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
2782  track->mdat_buf = NULL;
2783 
2784  avio_write(s->pb, buf, buf_size);
2785  av_free(buf);
2786  }
2787 
2788  mov->mdat_size = 0;
2789 
2790  avio_flush(s->pb);
2791  return 0;
2792 }
2793 
2795 {
2796  MOVMuxContext *mov = s->priv_data;
2797  AVIOContext *pb = s->pb;
2798  MOVTrack *trk = &mov->tracks[pkt->stream_index];
2799  AVCodecContext *enc = trk->enc;
2800  unsigned int samples_in_chunk = 0;
2801  int size= pkt->size;
2802  uint8_t *reformatted_data = NULL;
2803 
2804  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
2805  int ret;
2806  if (mov->fragments > 0) {
2807  if (!trk->mdat_buf) {
2808  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
2809  return ret;
2810  }
2811  pb = trk->mdat_buf;
2812  } else {
2813  if (!mov->mdat_buf) {
2814  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
2815  return ret;
2816  }
2817  pb = mov->mdat_buf;
2818  }
2819  }
2820 
2821  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
2822  /* We must find out how many AMR blocks there are in one packet */
2823  static uint16_t packed_size[16] =
2824  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
2825  int len = 0;
2826 
2827  while (len < size && samples_in_chunk < 100) {
2828  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
2829  samples_in_chunk++;
2830  }
2831  if (samples_in_chunk > 1) {
2832  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
2833  return -1;
2834  }
2835  } else if (trk->sample_size)
2836  samples_in_chunk = size / trk->sample_size;
2837  else
2838  samples_in_chunk = 1;
2839 
2840  /* copy extradata if it exists */
2841  if (trk->vos_len == 0 && enc->extradata_size > 0) {
2842  trk->vos_len = enc->extradata_size;
2843  trk->vos_data = av_malloc(trk->vos_len);
2844  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
2845  }
2846 
2847  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
2848  /* from x264 or from bytestream h264 */
2849  /* nal reformating needed */
2850  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
2851  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
2852  &size);
2853  avio_write(pb, reformatted_data, size);
2854  } else {
2855  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
2856  }
2857  } else {
2858  avio_write(pb, pkt->data, size);
2859  }
2860 
2861  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
2862  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
2863  /* copy frame to create needed atoms */
2864  trk->vos_len = size;
2865  trk->vos_data = av_malloc(size);
2866  if (!trk->vos_data)
2867  return AVERROR(ENOMEM);
2868  memcpy(trk->vos_data, pkt->data, size);
2869  }
2870 
2871  if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
2872  trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));
2873  if (!trk->cluster)
2874  return -1;
2875  }
2876 
2877  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2878  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
2879  trk->cluster[trk->entry].size = size;
2880  trk->cluster[trk->entry].entries = samples_in_chunk;
2881  trk->cluster[trk->entry].dts = pkt->dts;
2882  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
2883  /* First packet of a new fragment. We already wrote the duration
2884  * of the last packet of the previous fragment based on track_duration,
2885  * which might not exactly match our dts. Therefore adjust the dts
2886  * of this packet to be what the previous packets duration implies. */
2887  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
2888  }
2889  if (trk->start_dts == AV_NOPTS_VALUE)
2890  trk->start_dts = pkt->dts;
2891  trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
2892 
2893  if (pkt->pts == AV_NOPTS_VALUE) {
2894  av_log(s, AV_LOG_WARNING, "pts has no value\n");
2895  pkt->pts = pkt->dts;
2896  }
2897  if (pkt->dts != pkt->pts)
2898  trk->flags |= MOV_TRACK_CTTS;
2899  trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2900  trk->cluster[trk->entry].flags = 0;
2901  if (enc->codec_id == AV_CODEC_ID_VC1) {
2902  mov_parse_vc1_frame(pkt, trk, mov->fragments);
2903  } else if (pkt->flags & AV_PKT_FLAG_KEY) {
2904  if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
2905  trk->entry > 0) { // force sync sample for the first key frame
2906  mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2907  if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2908  trk->flags |= MOV_TRACK_STPS;
2909  } else {
2910  trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2911  }
2912  if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2913  trk->has_keyframes++;
2914  }
2915  trk->entry++;
2916  trk->sample_count += samples_in_chunk;
2917  mov->mdat_size += size;
2918 
2919  avio_flush(pb);
2920 
2921  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2922  ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
2923  reformatted_data, size);
2924  av_free(reformatted_data);
2925  return 0;
2926 }
2927 
2929 {
2930  if (!pkt) {
2931  mov_flush_fragment(s);
2932  return 1;
2933  } else {
2934  MOVMuxContext *mov = s->priv_data;
2935  MOVTrack *trk = &mov->tracks[pkt->stream_index];
2936  AVCodecContext *enc = trk->enc;
2937  int64_t frag_duration = 0;
2938  int size = pkt->size;
2939 
2940  if (!pkt->size) return 0; /* Discard 0 sized packets */
2941 
2942  if (trk->entry)
2943  frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
2944  s->streams[pkt->stream_index]->time_base,
2945  AV_TIME_BASE_Q);
2946  if ((mov->max_fragment_duration &&
2947  frag_duration >= mov->max_fragment_duration) ||
2948  (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
2949  (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
2950  enc->codec_type == AVMEDIA_TYPE_VIDEO &&
2951  trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
2952  if (frag_duration >= mov->min_fragment_duration)
2953  mov_flush_fragment(s);
2954  }
2955 
2956  return ff_mov_write_packet(s, pkt);
2957  }
2958 }
2959 
2960 // QuickTime chapters involve an additional text track with the chapter names
2961 // as samples, and a tref pointing from the other tracks to the chapter one.
2962 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
2963 {
2964  MOVMuxContext *mov = s->priv_data;
2965  MOVTrack *track = &mov->tracks[tracknum];
2966  AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
2967  int i, len;
2968 
2969  track->mode = mov->mode;
2970  track->tag = MKTAG('t','e','x','t');
2971  track->timescale = MOV_TIMESCALE;
2972  track->enc = avcodec_alloc_context3(NULL);
2974 
2975  for (i = 0; i < s->nb_chapters; i++) {
2976  AVChapter *c = s->chapters[i];
2978 
2979  int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
2980  pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
2981  pkt.duration = end - pkt.dts;
2982 
2983  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2984  len = strlen(t->value);
2985  pkt.size = len+2;
2986  pkt.data = av_malloc(pkt.size);
2987  AV_WB16(pkt.data, len);
2988  memcpy(pkt.data+2, t->value, len);
2989  ff_mov_write_packet(s, &pkt);
2990  av_freep(&pkt.data);
2991  }
2992  }
2993 }
2994 
2996 {
2997  AVIOContext *pb = s->pb;
2998  MOVMuxContext *mov = s->priv_data;
3000  int i, hint_track = 0;
3001 
3002  /* Set the FRAGMENT flag if any of the fragmentation methods are
3003  * enabled. */
3004  if (mov->max_fragment_duration || mov->max_fragment_size ||
3005  mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3008  mov->flags |= FF_MOV_FLAG_FRAGMENT;
3009 
3010  /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3011  * is enabled, we don't support non-seekable output at all. */
3012  if (!s->pb->seekable &&
3013  ((!(mov->flags & FF_MOV_FLAG_FRAGMENT) &&
3014  !(s->oformat && !strcmp(s->oformat->name, "ismv")))
3015  || mov->ism_lookahead)) {
3016  av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3017  return -1;
3018  }
3019 
3020  /* Default mode == MP4 */
3021  mov->mode = MODE_MP4;
3022 
3023  if (s->oformat != NULL) {
3024  if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3025  else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3026  else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3027  else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3028  else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3029  else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3030 
3031  mov_write_ftyp_tag(pb,s);
3032  if (mov->mode == MODE_PSP) {
3033  if (s->nb_streams != 2) {
3034  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3035  return -1;
3036  }
3037  mov_write_uuidprof_tag(pb,s);
3038  }
3039  }
3040 
3041  mov->nb_streams = s->nb_streams;
3042  if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
3043  mov->chapter_track = mov->nb_streams++;
3044 
3045  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3046  /* Add hint tracks for each audio and video stream */
3047  hint_track = mov->nb_streams;
3048  for (i = 0; i < s->nb_streams; i++) {
3049  AVStream *st = s->streams[i];
3050  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3052  mov->nb_streams++;
3053  }
3054  }
3055  }
3056 
3057  mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
3058  if (!mov->tracks)
3059  return AVERROR(ENOMEM);
3060 
3061  for(i=0; i<s->nb_streams; i++){
3062  AVStream *st= s->streams[i];
3063  MOVTrack *track= &mov->tracks[i];
3064  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3065 
3066  track->enc = st->codec;
3067  track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3068  if (track->language < 0)
3069  track->language = 0;
3070  track->mode = mov->mode;
3071  track->tag = mov_find_codec_tag(s, track);
3072  if (!track->tag) {
3073  av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3074  "codec not currently supported in container\n", i);
3075  goto error;
3076  }
3077  /* If hinting of this track is enabled by a later hint track,
3078  * this is updated. */
3079  track->hint_track = -1;
3080  track->start_dts = AV_NOPTS_VALUE;
3081  if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
3082  if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3083  track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3084  track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3085  if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3086  av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3087  goto error;
3088  }
3089  track->height = track->tag>>24 == 'n' ? 486 : 576;
3090  }
3091  track->timescale = st->codec->time_base.den;
3092  if (track->mode == MODE_MOV && track->timescale > 100000)
3094  "WARNING codec timebase is very high. If duration is too long,\n"
3095  "file may not be playable by quicktime. Specify a shorter timebase\n"
3096  "or choose different container.\n");
3097  }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
3098  track->timescale = st->codec->sample_rate;
3099  /* set sample_size for PCM and ADPCM */
3101  st->codec->codec_id == AV_CODEC_ID_ILBC) {
3102  if (!st->codec->block_align) {
3103  av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3104  goto error;
3105  }
3106  track->sample_size = st->codec->block_align;
3107  }
3108  /* set audio_vbr for compressed audio */
3109  if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3110  track->audio_vbr = 1;
3111  }
3112  if (track->mode != MODE_MOV &&
3113  track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3114  av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3115  i, track->enc->sample_rate);
3116  goto error;
3117  }
3118  }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
3119  track->timescale = st->codec->time_base.den;
3120  }
3121  if (!track->height)
3122  track->height = st->codec->height;
3123  /* The ism specific timescale isn't mandatory, but is assumed by
3124  * some tools, such as mp4split. */
3125  if (mov->mode == MODE_ISM)
3126  track->timescale = 10000000;
3127 
3128  avpriv_set_pts_info(st, 64, 1, track->timescale);
3129 
3130  /* copy extradata if it exists */
3131  if (st->codec->extradata_size) {
3132  track->vos_len = st->codec->extradata_size;
3133  track->vos_data = av_malloc(track->vos_len);
3134  memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3135  }
3136  }
3137 
3138  if (mov->mode == MODE_ISM) {
3139  /* If no fragmentation options have been set, set a default. */
3140  if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3143  mov->max_fragment_duration = 5000000;
3146  }
3147 
3148  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3149  mov_write_mdat_tag(pb, mov);
3150 
3151  if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3152  mov->time = ff_iso8601_to_unix_time(t->value);
3153  if (mov->time)
3154  mov->time += 0x7C25B080; // 1970 based -> 1904 based
3155 
3156  if (mov->chapter_track)
3158 
3159  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3160  /* Initialize the hint tracks for each audio and video stream */
3161  for (i = 0; i < s->nb_streams; i++) {
3162  AVStream *st = s->streams[i];
3163  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3165  ff_mov_init_hinting(s, hint_track, i);
3166  hint_track++;
3167  }
3168  }
3169  }
3170 
3171  avio_flush(pb);
3172 
3173  if (mov->flags & FF_MOV_FLAG_ISML)
3174  mov_write_isml_manifest(pb, mov);
3175 
3176  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3177  mov_write_moov_tag(pb, mov, s);
3178  mov->fragments++;
3179  }
3180 
3181  return 0;
3182  error:
3183  av_freep(&mov->tracks);
3184  return -1;
3185 }
3186 
3188 {
3189  MOVMuxContext *mov = s->priv_data;
3190  AVIOContext *pb = s->pb;
3191  int res = 0;
3192  int i;
3193 
3194  int64_t moov_pos = avio_tell(pb);
3195 
3196  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3197  /* Write size of mdat tag */
3198  if (mov->mdat_size + 8 <= UINT32_MAX) {
3199  avio_seek(pb, mov->mdat_pos, SEEK_SET);
3200  avio_wb32(pb, mov->mdat_size + 8);
3201  } else {
3202  /* overwrite 'wide' placeholder atom */
3203  avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3204  /* special value: real atom size will be 64 bit value after
3205  * tag field */
3206  avio_wb32(pb, 1);
3207  ffio_wfourcc(pb, "mdat");
3208  avio_wb64(pb, mov->mdat_size + 16);
3209  }
3210  avio_seek(pb, moov_pos, SEEK_SET);
3211 
3212  mov_write_moov_tag(pb, mov, s);
3213  } else {
3214  mov_flush_fragment(s);
3215  mov_write_mfra_tag(pb, mov);
3216  }
3217 
3218  if (mov->chapter_track)
3219  av_freep(&mov->tracks[mov->chapter_track].enc);
3220 
3221  for (i=0; i<mov->nb_streams; i++) {
3222  if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3223  ff_mov_close_hinting(&mov->tracks[i]);
3224  if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3225  mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3226  int64_t off = avio_tell(pb);
3227  uint8_t buf[7];
3228  if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3229  avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3230  avio_write(pb, buf, 7);
3231  avio_seek(pb, off, SEEK_SET);
3232  }
3233  }
3234  av_freep(&mov->tracks[i].cluster);
3235  av_freep(&mov->tracks[i].frag_info);
3236 
3237  if (mov->tracks[i].vos_len)
3238  av_free(mov->tracks[i].vos_data);
3239 
3240  }
3241 
3242  av_freep(&mov->tracks);
3243 
3244  return res;
3245 }
3246 
3247 #if CONFIG_MOV_MUXER
3248 MOV_CLASS(mov)
3249 AVOutputFormat ff_mov_muxer = {
3250  .name = "mov",
3251  .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3252  .extensions = "mov",
3253  .priv_data_size = sizeof(MOVMuxContext),
3254  .audio_codec = AV_CODEC_ID_AAC,
3255  .video_codec = CONFIG_LIBX264_ENCODER ?
3260  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3261  .codec_tag = (const AVCodecTag* const []){
3263  },
3264  .priv_class = &mov_muxer_class,
3265 };
3266 #endif
3267 #if CONFIG_TGP_MUXER
3268 MOV_CLASS(tgp)
3269 AVOutputFormat ff_tgp_muxer = {
3270  .name = "3gp",
3271  .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3272  .extensions = "3gp",
3273  .priv_data_size = sizeof(MOVMuxContext),
3274  .audio_codec = AV_CODEC_ID_AMR_NB,
3275  .video_codec = AV_CODEC_ID_H263,
3279  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3280  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3281  .priv_class = &tgp_muxer_class,
3282 };
3283 #endif
3284 #if CONFIG_MP4_MUXER
3285 MOV_CLASS(mp4)
3286 AVOutputFormat ff_mp4_muxer = {
3287  .name = "mp4",
3288  .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
3289  .mime_type = "application/mp4",
3290  .extensions = "mp4",
3291  .priv_data_size = sizeof(MOVMuxContext),
3292  .audio_codec = AV_CODEC_ID_AAC,
3293  .video_codec = CONFIG_LIBX264_ENCODER ?
3294  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3298  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3299  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3300  .priv_class = &mp4_muxer_class,
3301 };
3302 #endif
3303 #if CONFIG_PSP_MUXER
3304 MOV_CLASS(psp)
3305 AVOutputFormat ff_psp_muxer = {
3306  .name = "psp",
3307  .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
3308  .extensions = "mp4,psp",
3309  .priv_data_size = sizeof(MOVMuxContext),
3310  .audio_codec = AV_CODEC_ID_AAC,
3311  .video_codec = CONFIG_LIBX264_ENCODER ?
3312  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3316  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3317  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3318  .priv_class = &psp_muxer_class,
3319 };
3320 #endif
3321 #if CONFIG_TG2_MUXER
3322 MOV_CLASS(tg2)
3323 AVOutputFormat ff_tg2_muxer = {
3324  .name = "3g2",
3325  .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
3326  .extensions = "3g2",
3327  .priv_data_size = sizeof(MOVMuxContext),
3328  .audio_codec = AV_CODEC_ID_AMR_NB,
3329  .video_codec = AV_CODEC_ID_H263,
3333  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3334  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3335  .priv_class = &tg2_muxer_class,
3336 };
3337 #endif
3338 #if CONFIG_IPOD_MUXER
3339 MOV_CLASS(ipod)
3340 AVOutputFormat ff_ipod_muxer = {
3341  .name = "ipod",
3342  .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
3343  .mime_type = "application/mp4",
3344  .extensions = "m4v,m4a",
3345  .priv_data_size = sizeof(MOVMuxContext),
3346  .audio_codec = AV_CODEC_ID_AAC,
3347  .video_codec = AV_CODEC_ID_H264,
3351  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3352  .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
3353  .priv_class = &ipod_muxer_class,
3354 };
3355 #endif
3356 #if CONFIG_ISMV_MUXER
3357 MOV_CLASS(ismv)
3358 AVOutputFormat ff_ismv_muxer = {
3359  .name = "ismv",
3360  .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
3361  .mime_type = "application/mp4",
3362  .extensions = "ismv,isma",
3363  .priv_data_size = sizeof(MOVMuxContext),
3364  .audio_codec = AV_CODEC_ID_AAC,
3365  .video_codec = AV_CODEC_ID_H264,
3369  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
3370  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3371  .priv_class = &ismv_muxer_class,
3372 };
3373 #endif