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movenc.c
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1 /*
2  * MOV, 3GP, MP4 muxer
3  * Copyright (c) 2003 Thomas Raivio
4  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <stdint.h>
25 #include <inttypes.h>
26 
27 #include "movenc.h"
28 #include "avformat.h"
29 #include "avio_internal.h"
30 #include "riff.h"
31 #include "avio.h"
32 #include "isom.h"
33 #include "avc.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1_common.h"
37 #include "libavcodec/raw.h"
38 #include "internal.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intfloat.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/timecode.h"
46 #include "hevc.h"
47 #include "rtpenc.h"
48 #include "mov_chan.h"
49 
50 #undef NDEBUG
51 #include <assert.h>
52 
53 static const AVOption options[] = {
54  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55  { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56  { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
57  { "empty_moov", "Make the initial moov atom empty (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" },
58  { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59  { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60  { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61  { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62  { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63  { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64  { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
65  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
66  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
67  { "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},
68  { "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},
69  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70  { "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},
71  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
72  { "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},
73  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
74  { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
75  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
76  { NULL },
77 };
78 
79 #define MOV_CLASS(flavor)\
80 static const AVClass flavor ## _muxer_class = {\
81  .class_name = #flavor " muxer",\
82  .item_name = av_default_item_name,\
83  .option = options,\
84  .version = LIBAVUTIL_VERSION_INT,\
85 };
86 
87 static int get_moov_size(AVFormatContext *s);
88 
89 static int utf8len(const uint8_t *b)
90 {
91  int len = 0;
92  int val;
93  while (*b) {
94  GET_UTF8(val, *b++, return -1;)
95  len++;
96  }
97  return len;
98 }
99 
100 //FIXME support 64 bit variant with wide placeholders
101 static int64_t update_size(AVIOContext *pb, int64_t pos)
102 {
103  int64_t curpos = avio_tell(pb);
104  avio_seek(pb, pos, SEEK_SET);
105  avio_wb32(pb, curpos - pos); /* rewrite size */
106  avio_seek(pb, curpos, SEEK_SET);
107 
108  return curpos - pos;
109 }
110 
111 static int supports_edts(MOVMuxContext *mov)
112 {
113  // EDTS with fragments is tricky as we don't know the duration when its written
114  return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
115 }
116 
117 static int co64_required(const MOVTrack *track)
118 {
119  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
120  return 1;
121  return 0;
122 }
123 
124 /* Chunk offset atom */
125 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
126 {
127  int i;
128  int mode64 = co64_required(track); // use 32 bit size variant if possible
129  int64_t pos = avio_tell(pb);
130  avio_wb32(pb, 0); /* size */
131  if (mode64)
132  ffio_wfourcc(pb, "co64");
133  else
134  ffio_wfourcc(pb, "stco");
135  avio_wb32(pb, 0); /* version & flags */
136  avio_wb32(pb, track->chunkCount); /* entry count */
137  for (i = 0; i < track->entry; i++) {
138  if (!track->cluster[i].chunkNum)
139  continue;
140  if (mode64 == 1)
141  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
142  else
143  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
144  }
145  return update_size(pb, pos);
146 }
147 
148 /* Sample size atom */
149 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
150 {
151  int equalChunks = 1;
152  int i, j, entries = 0, tst = -1, oldtst = -1;
153 
154  int64_t pos = avio_tell(pb);
155  avio_wb32(pb, 0); /* size */
156  ffio_wfourcc(pb, "stsz");
157  avio_wb32(pb, 0); /* version & flags */
158 
159  for (i = 0; i < track->entry; i++) {
160  tst = track->cluster[i].size / track->cluster[i].entries;
161  if (oldtst != -1 && tst != oldtst)
162  equalChunks = 0;
163  oldtst = tst;
164  entries += track->cluster[i].entries;
165  }
166  if (equalChunks && track->entry) {
167  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
168  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
169  avio_wb32(pb, sSize); // sample size
170  avio_wb32(pb, entries); // sample count
171  } else {
172  avio_wb32(pb, 0); // sample size
173  avio_wb32(pb, entries); // sample count
174  for (i = 0; i < track->entry; i++) {
175  for (j = 0; j < track->cluster[i].entries; j++) {
176  avio_wb32(pb, track->cluster[i].size /
177  track->cluster[i].entries);
178  }
179  }
180  }
181  return update_size(pb, pos);
182 }
183 
184 /* Sample to chunk atom */
185 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
186 {
187  int index = 0, oldval = -1, i;
188  int64_t entryPos, curpos;
189 
190  int64_t pos = avio_tell(pb);
191  avio_wb32(pb, 0); /* size */
192  ffio_wfourcc(pb, "stsc");
193  avio_wb32(pb, 0); // version & flags
194  entryPos = avio_tell(pb);
195  avio_wb32(pb, track->chunkCount); // entry count
196  for (i = 0; i < track->entry; i++) {
197  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
198  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
199  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
200  avio_wb32(pb, 0x1); // sample description index
201  oldval = track->cluster[i].samples_in_chunk;
202  index++;
203  }
204  }
205  curpos = avio_tell(pb);
206  avio_seek(pb, entryPos, SEEK_SET);
207  avio_wb32(pb, index); // rewrite size
208  avio_seek(pb, curpos, SEEK_SET);
209 
210  return update_size(pb, pos);
211 }
212 
213 /* Sync sample atom */
214 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
215 {
216  int64_t curpos, entryPos;
217  int i, index = 0;
218  int64_t pos = avio_tell(pb);
219  avio_wb32(pb, 0); // size
220  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
221  avio_wb32(pb, 0); // version & flags
222  entryPos = avio_tell(pb);
223  avio_wb32(pb, track->entry); // entry count
224  for (i = 0; i < track->entry; i++) {
225  if (track->cluster[i].flags & flag) {
226  avio_wb32(pb, i + 1);
227  index++;
228  }
229  }
230  curpos = avio_tell(pb);
231  avio_seek(pb, entryPos, SEEK_SET);
232  avio_wb32(pb, index); // rewrite size
233  avio_seek(pb, curpos, SEEK_SET);
234  return update_size(pb, pos);
235 }
236 
237 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
238 {
239  avio_wb32(pb, 0x11); /* size */
240  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
241  else ffio_wfourcc(pb, "damr");
242  ffio_wfourcc(pb, "FFMP");
243  avio_w8(pb, 0); /* decoder version */
244 
245  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
246  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
247  avio_w8(pb, 0x01); /* Frames per sample */
248  return 0x11;
249 }
250 
251 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
252 {
253  GetBitContext gbc;
254  PutBitContext pbc;
255  uint8_t buf[3];
256  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
257 
258  if (track->vos_len < 7)
259  return -1;
260 
261  avio_wb32(pb, 11);
262  ffio_wfourcc(pb, "dac3");
263 
264  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
265  fscod = get_bits(&gbc, 2);
266  frmsizecod = get_bits(&gbc, 6);
267  bsid = get_bits(&gbc, 5);
268  bsmod = get_bits(&gbc, 3);
269  acmod = get_bits(&gbc, 3);
270  if (acmod == 2) {
271  skip_bits(&gbc, 2); // dsurmod
272  } else {
273  if ((acmod & 1) && acmod != 1)
274  skip_bits(&gbc, 2); // cmixlev
275  if (acmod & 4)
276  skip_bits(&gbc, 2); // surmixlev
277  }
278  lfeon = get_bits1(&gbc);
279 
280  init_put_bits(&pbc, buf, sizeof(buf));
281  put_bits(&pbc, 2, fscod);
282  put_bits(&pbc, 5, bsid);
283  put_bits(&pbc, 3, bsmod);
284  put_bits(&pbc, 3, acmod);
285  put_bits(&pbc, 1, lfeon);
286  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
287  put_bits(&pbc, 5, 0); // reserved
288 
289  flush_put_bits(&pbc);
290  avio_write(pb, buf, sizeof(buf));
291 
292  return 11;
293 }
294 
295 /**
296  * This function writes extradata "as is".
297  * Extradata must be formatted like a valid atom (with size and tag).
298  */
300 {
301  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
302  return track->enc->extradata_size;
303 }
304 
306 {
307  avio_wb32(pb, 10);
308  ffio_wfourcc(pb, "enda");
309  avio_wb16(pb, 1); /* little endian */
310  return 10;
311 }
312 
314 {
315  avio_wb32(pb, 10);
316  ffio_wfourcc(pb, "enda");
317  avio_wb16(pb, 0); /* big endian */
318  return 10;
319 }
320 
321 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
322 {
323  int i = 3;
324  avio_w8(pb, tag);
325  for (; i > 0; i--)
326  avio_w8(pb, (size >> (7 * i)) | 0x80);
327  avio_w8(pb, size & 0x7F);
328 }
329 
330 static unsigned compute_avg_bitrate(MOVTrack *track)
331 {
332  uint64_t size = 0;
333  int i;
334  if (!track->track_duration)
335  return 0;
336  for (i = 0; i < track->entry; i++)
337  size += track->cluster[i].size;
338  return size * 8 * track->timescale / track->track_duration;
339 }
340 
341 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
342 {
343  int64_t pos = avio_tell(pb);
344  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
345  unsigned avg_bitrate;
346 
347  avio_wb32(pb, 0); // size
348  ffio_wfourcc(pb, "esds");
349  avio_wb32(pb, 0); // Version
350 
351  // ES descriptor
352  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
353  avio_wb16(pb, track->track_id);
354  avio_w8(pb, 0x00); // flags (= no flags)
355 
356  // DecoderConfig descriptor
357  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
358 
359  // Object type indication
360  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
361  track->enc->codec_id == AV_CODEC_ID_MP3) &&
362  track->enc->sample_rate > 24000)
363  avio_w8(pb, 0x6B); // 11172-3
364  else
366 
367  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
368  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
369  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
370  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
371  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
372  avio_w8(pb, 0x15); // flags (= Audiostream)
373  else
374  avio_w8(pb, 0x11); // flags (= Visualstream)
375 
376  avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
377 
378  avg_bitrate = compute_avg_bitrate(track);
379  // maxbitrate (FIXME should be max rate in any 1 sec window)
380  avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
381  avio_wb32(pb, avg_bitrate);
382 
383  if (track->vos_len) {
384  // DecoderSpecific info descriptor
385  put_descr(pb, 0x05, track->vos_len);
386  avio_write(pb, track->vos_data, track->vos_len);
387  }
388 
389  // SL descriptor
390  put_descr(pb, 0x06, 1);
391  avio_w8(pb, 0x02);
392  return update_size(pb, pos);
393 }
394 
396 {
397  return codec_id == AV_CODEC_ID_PCM_S24LE ||
398  codec_id == AV_CODEC_ID_PCM_S32LE ||
399  codec_id == AV_CODEC_ID_PCM_F32LE ||
400  codec_id == AV_CODEC_ID_PCM_F64LE;
401 }
402 
404 {
405  return codec_id == AV_CODEC_ID_PCM_S24BE ||
406  codec_id == AV_CODEC_ID_PCM_S32BE ||
407  codec_id == AV_CODEC_ID_PCM_F32BE ||
408  codec_id == AV_CODEC_ID_PCM_F64BE;
409 }
410 
411 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
412 {
413  int ret;
414  int64_t pos = avio_tell(pb);
415  avio_wb32(pb, 0);
416  avio_wl32(pb, track->tag); // store it byteswapped
417  track->enc->codec_tag = av_bswap16(track->tag >> 16);
418  if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
419  return ret;
420  return update_size(pb, pos);
421 }
422 
423 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
424 {
425  int ret;
426  int64_t pos = avio_tell(pb);
427  avio_wb32(pb, 0);
428  ffio_wfourcc(pb, "wfex");
429  if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
430  return ret;
431  return update_size(pb, pos);
432 }
433 
434 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
435 {
436  uint32_t layout_tag, bitmap;
437  int64_t pos = avio_tell(pb);
438 
439  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
440  track->enc->channel_layout,
441  &bitmap);
442  if (!layout_tag) {
443  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
444  "lack of channel information\n");
445  return 0;
446  }
447 
448  if (track->multichannel_as_mono)
449  return 0;
450 
451  avio_wb32(pb, 0); // Size
452  ffio_wfourcc(pb, "chan"); // Type
453  avio_w8(pb, 0); // Version
454  avio_wb24(pb, 0); // Flags
455  avio_wb32(pb, layout_tag); // mChannelLayoutTag
456  avio_wb32(pb, bitmap); // mChannelBitmap
457  avio_wb32(pb, 0); // mNumberChannelDescriptions
458 
459  return update_size(pb, pos);
460 }
461 
462 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
463 {
464  int64_t pos = avio_tell(pb);
465 
466  avio_wb32(pb, 0); /* size */
467  ffio_wfourcc(pb, "wave");
468 
469  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
470  avio_wb32(pb, 12); /* size */
471  ffio_wfourcc(pb, "frma");
472  avio_wl32(pb, track->tag);
473  }
474 
475  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
476  /* useless atom needed by mplayer, ipod, not needed by quicktime */
477  avio_wb32(pb, 12); /* size */
478  ffio_wfourcc(pb, "mp4a");
479  avio_wb32(pb, 0);
480  mov_write_esds_tag(pb, track);
481  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
482  mov_write_enda_tag(pb);
483  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
485  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
486  mov_write_amr_tag(pb, track);
487  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
488  mov_write_ac3_tag(pb, track);
489  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
490  track->enc->codec_id == AV_CODEC_ID_QDM2) {
491  mov_write_extradata_tag(pb, track);
492  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
494  mov_write_ms_tag(pb, track);
495  }
496 
497  avio_wb32(pb, 8); /* size */
498  avio_wb32(pb, 0); /* null tag */
499 
500  return update_size(pb, pos);
501 }
502 
504 {
505  uint8_t *unescaped;
506  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
507  int unescaped_size, seq_found = 0;
508  int level = 0, interlace = 0;
509  int packet_seq = track->vc1_info.packet_seq;
510  int packet_entry = track->vc1_info.packet_entry;
511  int slices = track->vc1_info.slices;
512  PutBitContext pbc;
513 
514  if (track->start_dts == AV_NOPTS_VALUE) {
515  /* No packets written yet, vc1_info isn't authoritative yet. */
516  /* Assume inline sequence and entry headers. This will be
517  * overwritten at the end if the file is seekable. */
518  packet_seq = packet_entry = 1;
519  }
520 
521  unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
522  if (!unescaped)
523  return AVERROR(ENOMEM);
524  start = find_next_marker(track->vos_data, end);
525  for (next = start; next < end; start = next) {
526  GetBitContext gb;
527  int size;
528  next = find_next_marker(start + 4, end);
529  size = next - start - 4;
530  if (size <= 0)
531  continue;
532  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
533  init_get_bits(&gb, unescaped, 8 * unescaped_size);
534  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
535  int profile = get_bits(&gb, 2);
536  if (profile != PROFILE_ADVANCED) {
537  av_free(unescaped);
538  return AVERROR(ENOSYS);
539  }
540  seq_found = 1;
541  level = get_bits(&gb, 3);
542  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
543  * width, height */
544  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
545  skip_bits(&gb, 1); /* broadcast */
546  interlace = get_bits1(&gb);
547  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
548  }
549  }
550  if (!seq_found) {
551  av_free(unescaped);
552  return AVERROR(ENOSYS);
553  }
554 
555  init_put_bits(&pbc, buf, 7);
556  /* VC1DecSpecStruc */
557  put_bits(&pbc, 4, 12); /* profile - advanced */
558  put_bits(&pbc, 3, level);
559  put_bits(&pbc, 1, 0); /* reserved */
560  /* VC1AdvDecSpecStruc */
561  put_bits(&pbc, 3, level);
562  put_bits(&pbc, 1, 0); /* cbr */
563  put_bits(&pbc, 6, 0); /* reserved */
564  put_bits(&pbc, 1, !interlace); /* no interlace */
565  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
566  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
567  put_bits(&pbc, 1, !slices); /* no slice code */
568  put_bits(&pbc, 1, 0); /* no bframe */
569  put_bits(&pbc, 1, 0); /* reserved */
570 
571  /* framerate */
572  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
573  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
574  else
575  put_bits32(&pbc, 0xffffffff);
576 
577  flush_put_bits(&pbc);
578 
579  av_free(unescaped);
580 
581  return 0;
582 }
583 
584 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
585 {
586  uint8_t buf[7] = { 0 };
587  int ret;
588 
589  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
590  return ret;
591 
592  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
593  ffio_wfourcc(pb, "dvc1");
594  track->vc1_info.struct_offset = avio_tell(pb);
595  avio_write(pb, buf, sizeof(buf));
596  avio_write(pb, track->vos_data, track->vos_len);
597 
598  return 0;
599 }
600 
601 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
602 {
603  avio_wb32(pb, track->vos_len + 8);
604  ffio_wfourcc(pb, "glbl");
605  avio_write(pb, track->vos_data, track->vos_len);
606  return 8 + track->vos_len;
607 }
608 
609 /**
610  * Compute flags for 'lpcm' tag.
611  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
612  */
614 {
615  switch (codec_id) {
618  return 11;
621  return 9;
622  case AV_CODEC_ID_PCM_U8:
623  return 10;
627  return 14;
628  case AV_CODEC_ID_PCM_S8:
632  return 12;
633  default:
634  return 0;
635  }
636 }
637 
638 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
639 {
640  int64_t next_dts;
641 
642  if (cluster_idx >= track->entry)
643  return 0;
644 
645  if (cluster_idx + 1 == track->entry)
646  next_dts = track->track_duration + track->start_dts;
647  else
648  next_dts = track->cluster[cluster_idx + 1].dts;
649 
650  next_dts -= track->cluster[cluster_idx].dts;
651 
652  av_assert0(next_dts >= 0);
653  av_assert0(next_dts <= INT_MAX);
654 
655  return next_dts;
656 }
657 
659 {
660  int i, first_duration;
661 
662 // return track->enc->frame_size;
663 
664  /* use 1 for raw PCM */
665  if (!track->audio_vbr)
666  return 1;
667 
668  /* check to see if duration is constant for all clusters */
669  if (!track->entry)
670  return 0;
671  first_duration = get_cluster_duration(track, 0);
672  for (i = 1; i < track->entry; i++) {
673  if (get_cluster_duration(track, i) != first_duration)
674  return 0;
675  }
676  return first_duration;
677 }
678 
679 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
680 {
681  int64_t pos = avio_tell(pb);
682  int version = 0;
683  uint32_t tag = track->tag;
684 
685  if (track->mode == MODE_MOV) {
686  if (track->timescale > UINT16_MAX) {
687  if (mov_get_lpcm_flags(track->enc->codec_id))
688  tag = AV_RL32("lpcm");
689  version = 2;
690  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
691  mov_pcm_be_gt16(track->enc->codec_id) ||
692  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
694  track->enc->codec_id == AV_CODEC_ID_QDM2) {
695  version = 1;
696  }
697  }
698 
699  avio_wb32(pb, 0); /* size */
700  avio_wl32(pb, tag); // store it byteswapped
701  avio_wb32(pb, 0); /* Reserved */
702  avio_wb16(pb, 0); /* Reserved */
703  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
704 
705  /* SoundDescription */
706  avio_wb16(pb, version); /* Version */
707  avio_wb16(pb, 0); /* Revision level */
708  avio_wb32(pb, 0); /* Reserved */
709 
710  if (version == 2) {
711  avio_wb16(pb, 3);
712  avio_wb16(pb, 16);
713  avio_wb16(pb, 0xfffe);
714  avio_wb16(pb, 0);
715  avio_wb32(pb, 0x00010000);
716  avio_wb32(pb, 72);
717  avio_wb64(pb, av_double2int(track->enc->sample_rate));
718  avio_wb32(pb, track->enc->channels);
719  avio_wb32(pb, 0x7F000000);
722  avio_wb32(pb, track->sample_size);
723  avio_wb32(pb, get_samples_per_packet(track));
724  } else {
725  if (track->mode == MODE_MOV) {
726  avio_wb16(pb, track->enc->channels);
727  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
728  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
729  avio_wb16(pb, 8); /* bits per sample */
730  else
731  avio_wb16(pb, 16);
732  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
733  } else { /* reserved for mp4/3gp */
734  avio_wb16(pb, 2);
735  avio_wb16(pb, 16);
736  avio_wb16(pb, 0);
737  }
738 
739  avio_wb16(pb, 0); /* packet size (= 0) */
740  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
741  track->enc->sample_rate : 0);
742  avio_wb16(pb, 0); /* Reserved */
743  }
744 
745  if (version == 1) { /* SoundDescription V1 extended info */
746  if (mov_pcm_le_gt16(track->enc->codec_id) ||
747  mov_pcm_be_gt16(track->enc->codec_id))
748  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
749  else
750  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
751  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
752  avio_wb32(pb, track->sample_size); /* Bytes per frame */
753  avio_wb32(pb, 2); /* Bytes per sample */
754  }
755 
756  if (track->mode == MODE_MOV &&
757  (track->enc->codec_id == AV_CODEC_ID_AAC ||
758  track->enc->codec_id == AV_CODEC_ID_AC3 ||
759  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
760  track->enc->codec_id == AV_CODEC_ID_ALAC ||
761  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
763  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
764  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
765  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
766  mov_write_wave_tag(pb, track);
767  else if (track->tag == MKTAG('m','p','4','a'))
768  mov_write_esds_tag(pb, track);
769  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
770  mov_write_amr_tag(pb, track);
771  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
772  mov_write_ac3_tag(pb, track);
773  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
774  mov_write_extradata_tag(pb, track);
775  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
776  mov_write_wfex_tag(pb, track);
777  else if (track->vos_len > 0)
778  mov_write_glbl_tag(pb, track);
779 
780  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
781  mov_write_chan_tag(pb, track);
782 
783  return update_size(pb, pos);
784 }
785 
787 {
788  avio_wb32(pb, 0xf); /* size */
789  ffio_wfourcc(pb, "d263");
790  ffio_wfourcc(pb, "FFMP");
791  avio_w8(pb, 0); /* decoder version */
792  /* FIXME use AVCodecContext level/profile, when encoder will set values */
793  avio_w8(pb, 0xa); /* level */
794  avio_w8(pb, 0); /* profile */
795  return 0xf;
796 }
797 
798 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
799 {
800  int64_t pos = avio_tell(pb);
801 
802  avio_wb32(pb, 0);
803  ffio_wfourcc(pb, "avcC");
804  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
805  return update_size(pb, pos);
806 }
807 
808 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
809 {
810  int64_t pos = avio_tell(pb);
811 
812  avio_wb32(pb, 0);
813  ffio_wfourcc(pb, "hvcC");
814  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
815  return update_size(pb, pos);
816 }
817 
818 /* also used by all avid codecs (dv, imx, meridien) and their variants */
819 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
820 {
821  int i;
822  avio_wb32(pb, 24); /* size */
823  ffio_wfourcc(pb, "ACLR");
824  ffio_wfourcc(pb, "ACLR");
825  ffio_wfourcc(pb, "0001");
826  if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
827  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
828  } else { /* Full range (0-255) */
829  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
830  }
831  avio_wb32(pb, 0); /* unknown */
832 
833  avio_wb32(pb, 24); /* size */
834  ffio_wfourcc(pb, "APRG");
835  ffio_wfourcc(pb, "APRG");
836  ffio_wfourcc(pb, "0001");
837  avio_wb32(pb, 1); /* unknown */
838  avio_wb32(pb, 0); /* unknown */
839 
840  avio_wb32(pb, 120); /* size */
841  ffio_wfourcc(pb, "ARES");
842  ffio_wfourcc(pb, "ARES");
843  ffio_wfourcc(pb, "0001");
844  avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
845  avio_wb32(pb, track->enc->width);
846  /* values below are based on samples created with quicktime and avid codecs */
847  if (track->vos_data[5] & 2) { // interlaced
848  avio_wb32(pb, track->enc->height / 2);
849  avio_wb32(pb, 2); /* unknown */
850  avio_wb32(pb, 0); /* unknown */
851  avio_wb32(pb, 4); /* unknown */
852  } else {
853  avio_wb32(pb, track->enc->height);
854  avio_wb32(pb, 1); /* unknown */
855  avio_wb32(pb, 0); /* unknown */
856  if (track->enc->height == 1080)
857  avio_wb32(pb, 5); /* unknown */
858  else
859  avio_wb32(pb, 6); /* unknown */
860  }
861  /* padding */
862  for (i = 0; i < 10; i++)
863  avio_wb64(pb, 0);
864 
865  /* extra padding for stsd needed */
866  avio_wb32(pb, 0);
867  return 0;
868 }
869 
871 {
872  int tag = track->enc->codec_tag;
873 
875  return 0;
876 
877  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
878  else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
879  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
880  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
881  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
882  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
883  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
884  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
885  else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
886 
887  return tag;
888 }
889 
890 static const AVCodecTag codec_ipod_tags[] = {
891  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
892  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
893  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
894  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
895  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
896  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
897  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
898  { AV_CODEC_ID_NONE, 0 },
899 };
900 
902 {
903  int tag = track->enc->codec_tag;
904 
905  // keep original tag for subs, ipod supports both formats
906  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
907  (tag == MKTAG('t', 'x', '3', 'g') ||
908  tag == MKTAG('t', 'e', 'x', 't'))))
909  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
910 
911  if (!av_match_ext(s->filename, "m4a") &&
912  !av_match_ext(s->filename, "m4b") &&
913  !av_match_ext(s->filename, "m4v"))
914  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
915  "Quicktime/Ipod might not play the file\n");
916 
917  return tag;
918 }
919 
921 {
922  int tag;
923 
924  if (track->enc->width == 720) { /* SD */
925  if (track->enc->height == 480) { /* NTSC */
926  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
927  else tag = MKTAG('d','v','c',' ');
928  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
929  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
930  else tag = MKTAG('d','v','p','p');
931  } else if (track->enc->height == 720) { /* HD 720 line */
932  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
933  else tag = MKTAG('d','v','h','p');
934  } else if (track->enc->height == 1080) { /* HD 1080 line */
935  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
936  else tag = MKTAG('d','v','h','6');
937  } else {
938  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
939  return 0;
940  }
941 
942  return tag;
943 }
944 
946 {
947  AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
948  /* if the codec time base makes no sense, try to fallback on stream frame rate */
949  if (av_timecode_check_frame_rate(rate) < 0) {
950  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
951  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
952  rate = st->avg_frame_rate;
953  }
954 
955  return rate;
956 }
957 
959 {
960  int tag = track->enc->codec_tag;
961  int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
962  AVStream *st = track->st;
963  int rate = av_q2d(find_fps(s, st));
964 
965  if (!tag)
966  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
967 
968  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
969  if (track->enc->width == 1280 && track->enc->height == 720) {
970  if (!interlaced) {
971  if (rate == 24) tag = MKTAG('x','d','v','4');
972  else if (rate == 25) tag = MKTAG('x','d','v','5');
973  else if (rate == 30) tag = MKTAG('x','d','v','1');
974  else if (rate == 50) tag = MKTAG('x','d','v','a');
975  else if (rate == 60) tag = MKTAG('x','d','v','9');
976  }
977  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
978  if (!interlaced) {
979  if (rate == 24) tag = MKTAG('x','d','v','6');
980  else if (rate == 25) tag = MKTAG('x','d','v','7');
981  else if (rate == 30) tag = MKTAG('x','d','v','8');
982  } else {
983  if (rate == 25) tag = MKTAG('x','d','v','3');
984  else if (rate == 30) tag = MKTAG('x','d','v','2');
985  }
986  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
987  if (!interlaced) {
988  if (rate == 24) tag = MKTAG('x','d','v','d');
989  else if (rate == 25) tag = MKTAG('x','d','v','e');
990  else if (rate == 30) tag = MKTAG('x','d','v','f');
991  } else {
992  if (rate == 25) tag = MKTAG('x','d','v','c');
993  else if (rate == 30) tag = MKTAG('x','d','v','b');
994  }
995  }
996  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
997  if (track->enc->width == 1280 && track->enc->height == 720) {
998  if (!interlaced) {
999  if (rate == 24) tag = MKTAG('x','d','5','4');
1000  else if (rate == 25) tag = MKTAG('x','d','5','5');
1001  else if (rate == 30) tag = MKTAG('x','d','5','1');
1002  else if (rate == 50) tag = MKTAG('x','d','5','a');
1003  else if (rate == 60) tag = MKTAG('x','d','5','9');
1004  }
1005  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1006  if (!interlaced) {
1007  if (rate == 24) tag = MKTAG('x','d','5','d');
1008  else if (rate == 25) tag = MKTAG('x','d','5','e');
1009  else if (rate == 30) tag = MKTAG('x','d','5','f');
1010  } else {
1011  if (rate == 25) tag = MKTAG('x','d','5','c');
1012  else if (rate == 30) tag = MKTAG('x','d','5','b');
1013  }
1014  }
1015  }
1016 
1017  return tag;
1018 }
1019 
1020 static const struct {
1022  uint32_t tag;
1023  unsigned bps;
1024 } mov_pix_fmt_tags[] = {
1025  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1026  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1027  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1028  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1029  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1030  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1031  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1032  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1033  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1034  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1035  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1036  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1037  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1038  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1039  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1040 };
1041 
1043 {
1044  int tag = track->enc->codec_tag;
1045  int i;
1046  enum AVPixelFormat pix_fmt;
1047 
1048  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1049  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1050  tag = mov_pix_fmt_tags[i].tag;
1051  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1052  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1053  break;
1054  }
1055  }
1056 
1058  track->enc->bits_per_coded_sample);
1059  if (tag == MKTAG('r','a','w',' ') &&
1060  track->enc->pix_fmt != pix_fmt &&
1061  track->enc->pix_fmt != AV_PIX_FMT_NONE)
1062  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1063  av_get_pix_fmt_name(track->enc->pix_fmt));
1064  return tag;
1065 }
1066 
1068 {
1069  int tag = track->enc->codec_tag;
1070 
1071  if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1072  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1073  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1074  track->enc->codec_id == AV_CODEC_ID_H263 ||
1075  track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1076  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1077  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1078  tag = mov_get_dv_codec_tag(s, track);
1079  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1080  tag = mov_get_rawvideo_codec_tag(s, track);
1081  else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1082  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1083  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1085  if (!tag) { // if no mac fcc found, try with Microsoft tags
1087  if (tag)
1088  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1089  "the file may be unplayable!\n");
1090  }
1091  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1093  if (!tag) { // if no mac fcc found, try with Microsoft tags
1094  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1095  if (ms_tag) {
1096  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1097  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1098  "the file may be unplayable!\n");
1099  }
1100  }
1101  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1103  }
1104 
1105  return tag;
1106 }
1107 
1108 static const AVCodecTag codec_3gp_tags[] = {
1109  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1110  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1111  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1112  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1113  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1114  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1115  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1116  { AV_CODEC_ID_NONE, 0 },
1117 };
1118 
1119 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1120  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1121  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1122  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1123  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1124  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1125  { AV_CODEC_ID_NONE, 0 },
1126 };
1127 
1129 {
1130  int tag;
1131 
1132  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1133  tag = mp4_get_codec_tag(s, track);
1134  else if (track->mode == MODE_ISM) {
1135  tag = mp4_get_codec_tag(s, track);
1136  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1137  tag = MKTAG('w', 'm', 'a', ' ');
1138  } else if (track->mode == MODE_IPOD)
1139  tag = ipod_get_codec_tag(s, track);
1140  else if (track->mode & MODE_3GP)
1141  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1142  else if (track->mode == MODE_F4V)
1143  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1144  else
1145  tag = mov_get_codec_tag(s, track);
1146 
1147  return tag;
1148 }
1149 
1150 /** Write uuid atom.
1151  * Needed to make file play in iPods running newest firmware
1152  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1153  */
1155 {
1156  avio_wb32(pb, 28);
1157  ffio_wfourcc(pb, "uuid");
1158  avio_wb32(pb, 0x6b6840f2);
1159  avio_wb32(pb, 0x5f244fc5);
1160  avio_wb32(pb, 0xba39a51b);
1161  avio_wb32(pb, 0xcf0323f3);
1162  avio_wb32(pb, 0x0);
1163  return 28;
1164 }
1165 
1166 static const uint16_t fiel_data[] = {
1167  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1168 };
1169 
1170 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1171 {
1172  unsigned mov_field_order = 0;
1173  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1174  mov_field_order = fiel_data[track->enc->field_order];
1175  else
1176  return 0;
1177  avio_wb32(pb, 10);
1178  ffio_wfourcc(pb, "fiel");
1179  avio_wb16(pb, mov_field_order);
1180  return 10;
1181 }
1182 
1184 {
1185  int64_t pos = avio_tell(pb);
1186  avio_wb32(pb, 0); /* size */
1187  avio_wl32(pb, track->tag); // store it byteswapped
1188  avio_wb32(pb, 0); /* Reserved */
1189  avio_wb16(pb, 0); /* Reserved */
1190  avio_wb16(pb, 1); /* Data-reference index */
1191 
1192  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1193  mov_write_esds_tag(pb, track);
1194  else if (track->enc->extradata_size)
1195  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1196 
1197  return update_size(pb, pos);
1198 }
1199 
1200 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1201 {
1202  AVRational sar;
1203  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1204  track->enc->sample_aspect_ratio.den, INT_MAX);
1205 
1206  avio_wb32(pb, 16);
1207  ffio_wfourcc(pb, "pasp");
1208  avio_wb32(pb, sar.num);
1209  avio_wb32(pb, sar.den);
1210  return 16;
1211 }
1212 
1213 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1214 {
1215  AVDictionaryEntry *encoder;
1216  int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1217  || (track->enc->width == 1440 && track->enc->height == 1080)
1218  || (track->enc->width == 1920 && track->enc->height == 1080);
1219 
1220  if (track->mode == MODE_MOV &&
1221  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1222  av_strlcpy(compressor_name, encoder->value, 32);
1223  } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1224  int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1225  AVStream *st = track->st;
1226  int rate = av_q2d(find_fps(NULL, st));
1227  av_strlcatf(compressor_name, len, "XDCAM");
1228  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1229  av_strlcatf(compressor_name, len, " HD422");
1230  } else if(track->enc->width == 1440) {
1231  av_strlcatf(compressor_name, len, " HD");
1232  } else
1233  av_strlcatf(compressor_name, len, " EX");
1234 
1235  av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1236 
1237  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1238  }
1239 }
1240 
1242 {
1243  int64_t pos = avio_tell(pb);
1244  char compressor_name[32] = { 0 };
1245 
1246  avio_wb32(pb, 0); /* size */
1247  avio_wl32(pb, track->tag); // store it byteswapped
1248  avio_wb32(pb, 0); /* Reserved */
1249  avio_wb16(pb, 0); /* Reserved */
1250  avio_wb16(pb, 1); /* Data-reference index */
1251 
1252  avio_wb16(pb, 0); /* Codec stream version */
1253  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1254  if (track->mode == MODE_MOV) {
1255  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1256  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1257  avio_wb32(pb, 0); /* Temporal Quality */
1258  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1259  } else {
1260  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1261  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1262  }
1263  } else {
1264  avio_wb32(pb, 0); /* Reserved */
1265  avio_wb32(pb, 0); /* Reserved */
1266  avio_wb32(pb, 0); /* Reserved */
1267  }
1268  avio_wb16(pb, track->enc->width); /* Video width */
1269  avio_wb16(pb, track->height); /* Video height */
1270  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1271  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1272  avio_wb32(pb, 0); /* Data size (= 0) */
1273  avio_wb16(pb, 1); /* Frame count (= 1) */
1274 
1275  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1276  find_compressor(compressor_name, 32, track);
1277  avio_w8(pb, strlen(compressor_name));
1278  avio_write(pb, compressor_name, 31);
1279 
1280  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1281  avio_wb16(pb, track->enc->bits_per_coded_sample);
1282  else
1283  avio_wb16(pb, 0x18); /* Reserved */
1284  avio_wb16(pb, 0xffff); /* Reserved */
1285  if (track->tag == MKTAG('m','p','4','v'))
1286  mov_write_esds_tag(pb, track);
1287  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1288  mov_write_d263_tag(pb);
1289  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1290  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1291  mov_write_extradata_tag(pb, track);
1292  avio_wb32(pb, 0);
1293  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1294  mov_write_avid_tag(pb, track);
1295  else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1296  mov_write_hvcc_tag(pb, track);
1297  else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1298  mov_write_avcc_tag(pb, track);
1299  if (track->mode == MODE_IPOD)
1301  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1302  mov_write_dvc1_tag(pb, track);
1303  else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1304  track->enc->codec_id == AV_CODEC_ID_VP6A) {
1305  /* Don't write any potential extradata here - the cropping
1306  * is signalled via the normal width/height fields. */
1307  } else if (track->vos_len > 0)
1308  mov_write_glbl_tag(pb, track);
1309 
1310  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1311  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1312  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1313  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1314  mov_write_fiel_tag(pb, track);
1315 
1316  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1317  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1318  mov_write_pasp_tag(pb, track);
1319  }
1320 
1321  return update_size(pb, pos);
1322 }
1323 
1324 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1325 {
1326  int64_t pos = avio_tell(pb);
1327  avio_wb32(pb, 0); /* size */
1328  ffio_wfourcc(pb, "rtp ");
1329  avio_wb32(pb, 0); /* Reserved */
1330  avio_wb16(pb, 0); /* Reserved */
1331  avio_wb16(pb, 1); /* Data-reference index */
1332 
1333  avio_wb16(pb, 1); /* Hint track version */
1334  avio_wb16(pb, 1); /* Highest compatible version */
1335  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1336 
1337  avio_wb32(pb, 12); /* size */
1338  ffio_wfourcc(pb, "tims");
1339  avio_wb32(pb, track->timescale);
1340 
1341  return update_size(pb, pos);
1342 }
1343 
1344 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1345 {
1346  uint64_t str_size =strlen(reel_name);
1347  int64_t pos = avio_tell(pb);
1348 
1349  if (str_size >= UINT16_MAX){
1350  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1351  avio_wb16(pb, 0);
1352  return AVERROR(EINVAL);
1353  }
1354 
1355  avio_wb32(pb, 0); /* size */
1356  ffio_wfourcc(pb, "name"); /* Data format */
1357  avio_wb16(pb, str_size); /* string size */
1358  avio_wb16(pb, track->language); /* langcode */
1359  avio_write(pb, reel_name, str_size); /* reel name */
1360  return update_size(pb,pos);
1361 }
1362 
1363 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1364 {
1365  int64_t pos = avio_tell(pb);
1366 #if 1
1367  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1368  int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1369  AVDictionaryEntry *t = NULL;
1370 
1371  if (nb_frames > 255) {
1372  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1373  return AVERROR(EINVAL);
1374  }
1375 
1376  avio_wb32(pb, 0); /* size */
1377  ffio_wfourcc(pb, "tmcd"); /* Data format */
1378  avio_wb32(pb, 0); /* Reserved */
1379  avio_wb32(pb, 1); /* Data reference index */
1380  avio_wb32(pb, 0); /* Flags */
1381  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1382  avio_wb32(pb, track->timescale); /* Timescale */
1383  avio_wb32(pb, frame_duration); /* Frame duration */
1384  avio_w8(pb, nb_frames); /* Number of frames */
1385  avio_w8(pb, 0); /* Reserved */
1386 
1387  if (track->st)
1388  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1389 
1390  if (t && utf8len(t->value))
1391  mov_write_source_reference_tag(pb, track, t->value);
1392  else
1393  avio_wb16(pb, 0); /* zero size */
1394 #else
1395 
1396  avio_wb32(pb, 0); /* size */
1397  ffio_wfourcc(pb, "tmcd"); /* Data format */
1398  avio_wb32(pb, 0); /* Reserved */
1399  avio_wb32(pb, 1); /* Data reference index */
1400  if (track->enc->extradata_size)
1401  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1402 #endif
1403  return update_size(pb, pos);
1404 }
1405 
1406 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1407 {
1408  int64_t pos = avio_tell(pb);
1409  avio_wb32(pb, 0); /* size */
1410  ffio_wfourcc(pb, "stsd");
1411  avio_wb32(pb, 0); /* version & flags */
1412  avio_wb32(pb, 1); /* entry count */
1413  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1414  mov_write_video_tag(pb, track);
1415  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1416  mov_write_audio_tag(pb, track);
1417  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1418  mov_write_subtitle_tag(pb, track);
1419  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1420  mov_write_rtp_tag(pb, track);
1421  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1422  mov_write_tmcd_tag(pb, track);
1423  return update_size(pb, pos);
1424 }
1425 
1426 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1427 {
1428  MOVStts *ctts_entries;
1429  uint32_t entries = 0;
1430  uint32_t atom_size;
1431  int i;
1432 
1433  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1434  ctts_entries[0].count = 1;
1435  ctts_entries[0].duration = track->cluster[0].cts;
1436  for (i = 1; i < track->entry; i++) {
1437  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1438  ctts_entries[entries].count++; /* compress */
1439  } else {
1440  entries++;
1441  ctts_entries[entries].duration = track->cluster[i].cts;
1442  ctts_entries[entries].count = 1;
1443  }
1444  }
1445  entries++; /* last one */
1446  atom_size = 16 + (entries * 8);
1447  avio_wb32(pb, atom_size); /* size */
1448  ffio_wfourcc(pb, "ctts");
1449  avio_wb32(pb, 0); /* version & flags */
1450  avio_wb32(pb, entries); /* entry count */
1451  for (i = 0; i < entries; i++) {
1452  avio_wb32(pb, ctts_entries[i].count);
1453  avio_wb32(pb, ctts_entries[i].duration);
1454  }
1455  av_free(ctts_entries);
1456  return atom_size;
1457 }
1458 
1459 /* Time to sample atom */
1460 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1461 {
1462  MOVStts *stts_entries;
1463  uint32_t entries = -1;
1464  uint32_t atom_size;
1465  int i;
1466 
1467  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1468  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1469  stts_entries[0].count = track->sample_count;
1470  stts_entries[0].duration = 1;
1471  entries = 1;
1472  } else {
1473  stts_entries = track->entry ?
1474  av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1475  NULL;
1476  for (i = 0; i < track->entry; i++) {
1477  int duration = get_cluster_duration(track, i);
1478  if (i && duration == stts_entries[entries].duration) {
1479  stts_entries[entries].count++; /* compress */
1480  } else {
1481  entries++;
1482  stts_entries[entries].duration = duration;
1483  stts_entries[entries].count = 1;
1484  }
1485  }
1486  entries++; /* last one */
1487  }
1488  atom_size = 16 + (entries * 8);
1489  avio_wb32(pb, atom_size); /* size */
1490  ffio_wfourcc(pb, "stts");
1491  avio_wb32(pb, 0); /* version & flags */
1492  avio_wb32(pb, entries); /* entry count */
1493  for (i = 0; i < entries; i++) {
1494  avio_wb32(pb, stts_entries[i].count);
1495  avio_wb32(pb, stts_entries[i].duration);
1496  }
1497  av_free(stts_entries);
1498  return atom_size;
1499 }
1500 
1502 {
1503  avio_wb32(pb, 28); /* size */
1504  ffio_wfourcc(pb, "dref");
1505  avio_wb32(pb, 0); /* version & flags */
1506  avio_wb32(pb, 1); /* entry count */
1507 
1508  avio_wb32(pb, 0xc); /* size */
1509  //FIXME add the alis and rsrc atom
1510  ffio_wfourcc(pb, "url ");
1511  avio_wb32(pb, 1); /* version & flags */
1512 
1513  return 28;
1514 }
1515 
1516 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1517 {
1518  int64_t pos = avio_tell(pb);
1519  avio_wb32(pb, 0); /* size */
1520  ffio_wfourcc(pb, "stbl");
1521  mov_write_stsd_tag(pb, track);
1522  mov_write_stts_tag(pb, track);
1523  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1524  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1525  track->has_keyframes && track->has_keyframes < track->entry)
1526  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1527  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1529  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1530  track->flags & MOV_TRACK_CTTS)
1531  mov_write_ctts_tag(pb, track);
1532  mov_write_stsc_tag(pb, track);
1533  mov_write_stsz_tag(pb, track);
1534  mov_write_stco_tag(pb, track);
1535  return update_size(pb, pos);
1536 }
1537 
1539 {
1540  int64_t pos = avio_tell(pb);
1541  avio_wb32(pb, 0); /* size */
1542  ffio_wfourcc(pb, "dinf");
1543  mov_write_dref_tag(pb);
1544  return update_size(pb, pos);
1545 }
1546 
1548 {
1549  avio_wb32(pb, 12);
1550  ffio_wfourcc(pb, "nmhd");
1551  avio_wb32(pb, 0);
1552  return 12;
1553 }
1554 
1555 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1556 {
1557  int64_t pos = avio_tell(pb);
1558  const char *font = "Lucida Grande";
1559  avio_wb32(pb, 0); /* size */
1560  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1561  avio_wb32(pb, 0); /* version & flags */
1562  avio_wb16(pb, 0); /* text font */
1563  avio_wb16(pb, 0); /* text face */
1564  avio_wb16(pb, 12); /* text size */
1565  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1566  avio_wb16(pb, 0x0000); /* text color (red) */
1567  avio_wb16(pb, 0x0000); /* text color (green) */
1568  avio_wb16(pb, 0x0000); /* text color (blue) */
1569  avio_wb16(pb, 0xffff); /* background color (red) */
1570  avio_wb16(pb, 0xffff); /* background color (green) */
1571  avio_wb16(pb, 0xffff); /* background color (blue) */
1572  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1573  avio_write(pb, font, strlen(font)); /* font name */
1574  return update_size(pb, pos);
1575 }
1576 
1577 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1578 {
1579  int64_t pos = avio_tell(pb);
1580  avio_wb32(pb, 0); /* size */
1581  ffio_wfourcc(pb, "gmhd");
1582  avio_wb32(pb, 0x18); /* gmin size */
1583  ffio_wfourcc(pb, "gmin");/* generic media info */
1584  avio_wb32(pb, 0); /* version & flags */
1585  avio_wb16(pb, 0x40); /* graphics mode = */
1586  avio_wb16(pb, 0x8000); /* opColor (r?) */
1587  avio_wb16(pb, 0x8000); /* opColor (g?) */
1588  avio_wb16(pb, 0x8000); /* opColor (b?) */
1589  avio_wb16(pb, 0); /* balance */
1590  avio_wb16(pb, 0); /* reserved */
1591 
1592  /*
1593  * This special text atom is required for
1594  * Apple Quicktime chapters. The contents
1595  * don't appear to be documented, so the
1596  * bytes are copied verbatim.
1597  */
1598  if (track->tag != MKTAG('c','6','0','8')) {
1599  avio_wb32(pb, 0x2C); /* size */
1600  ffio_wfourcc(pb, "text");
1601  avio_wb16(pb, 0x01);
1602  avio_wb32(pb, 0x00);
1603  avio_wb32(pb, 0x00);
1604  avio_wb32(pb, 0x00);
1605  avio_wb32(pb, 0x01);
1606  avio_wb32(pb, 0x00);
1607  avio_wb32(pb, 0x00);
1608  avio_wb32(pb, 0x00);
1609  avio_wb32(pb, 0x00004000);
1610  avio_wb16(pb, 0x0000);
1611  }
1612 
1613  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1614  int64_t tmcd_pos = avio_tell(pb);
1615  avio_wb32(pb, 0); /* size */
1616  ffio_wfourcc(pb, "tmcd");
1617  mov_write_tcmi_tag(pb, track);
1618  update_size(pb, tmcd_pos);
1619  }
1620  return update_size(pb, pos);
1621 }
1622 
1624 {
1625  avio_wb32(pb, 16); /* size */
1626  ffio_wfourcc(pb, "smhd");
1627  avio_wb32(pb, 0); /* version & flags */
1628  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1629  avio_wb16(pb, 0); /* reserved */
1630  return 16;
1631 }
1632 
1634 {
1635  avio_wb32(pb, 0x14); /* size (always 0x14) */
1636  ffio_wfourcc(pb, "vmhd");
1637  avio_wb32(pb, 0x01); /* version & flags */
1638  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1639  return 0x14;
1640 }
1641 
1642 static int is_clcp_track(MOVTrack *track)
1643 {
1644  return track->tag == MKTAG('c','7','0','8') ||
1645  track->tag == MKTAG('c','6','0','8');
1646 }
1647 
1648 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1649 {
1650  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1651  int64_t pos = avio_tell(pb);
1652 
1653  hdlr = "dhlr";
1654  hdlr_type = "url ";
1655  descr = "DataHandler";
1656 
1657  if (track) {
1658  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1659  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1660  hdlr_type = "vide";
1661  descr = "VideoHandler";
1662  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1663  hdlr_type = "soun";
1664  descr = "SoundHandler";
1665  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1666  if (is_clcp_track(track)) {
1667  hdlr_type = "clcp";
1668  descr = "ClosedCaptionHandler";
1669  } else {
1670  if (track->tag == MKTAG('t','x','3','g')) {
1671  hdlr_type = "sbtl";
1672  } else if (track->tag == MKTAG('m','p','4','s')) {
1673  hdlr_type = "subp";
1674  } else {
1675  hdlr_type = "text";
1676  }
1677  descr = "SubtitleHandler";
1678  }
1679  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1680  hdlr_type = "hint";
1681  descr = "HintHandler";
1682  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1683  hdlr_type = "tmcd";
1684  descr = "TimeCodeHandler";
1685  } else {
1686  char tag_buf[32];
1687  av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1688  track->enc->codec_tag);
1689 
1690  av_log(track->enc, AV_LOG_WARNING,
1691  "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1692  tag_buf, track->enc->codec_tag);
1693  }
1694  if (track->st) {
1695  // hdlr.name is used by some players to identify the content title
1696  // of the track. So if an alternate handler description is
1697  // specified, use it.
1698  AVDictionaryEntry *t;
1699  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1700  if (t && utf8len(t->value))
1701  descr = t->value;
1702  }
1703  }
1704 
1705  avio_wb32(pb, 0); /* size */
1706  ffio_wfourcc(pb, "hdlr");
1707  avio_wb32(pb, 0); /* Version & flags */
1708  avio_write(pb, hdlr, 4); /* handler */
1709  ffio_wfourcc(pb, hdlr_type); /* handler type */
1710  avio_wb32(pb, 0); /* reserved */
1711  avio_wb32(pb, 0); /* reserved */
1712  avio_wb32(pb, 0); /* reserved */
1713  if (!track || track->mode == MODE_MOV)
1714  avio_w8(pb, strlen(descr)); /* pascal string */
1715  avio_write(pb, descr, strlen(descr)); /* handler description */
1716  if (track && track->mode != MODE_MOV)
1717  avio_w8(pb, 0); /* c string */
1718  return update_size(pb, pos);
1719 }
1720 
1722 {
1723  /* This atom must be present, but leaving the values at zero
1724  * seems harmless. */
1725  avio_wb32(pb, 28); /* size */
1726  ffio_wfourcc(pb, "hmhd");
1727  avio_wb32(pb, 0); /* version, flags */
1728  avio_wb16(pb, 0); /* maxPDUsize */
1729  avio_wb16(pb, 0); /* avgPDUsize */
1730  avio_wb32(pb, 0); /* maxbitrate */
1731  avio_wb32(pb, 0); /* avgbitrate */
1732  avio_wb32(pb, 0); /* reserved */
1733  return 28;
1734 }
1735 
1736 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1737 {
1738  int64_t pos = avio_tell(pb);
1739  avio_wb32(pb, 0); /* size */
1740  ffio_wfourcc(pb, "minf");
1741  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1742  mov_write_vmhd_tag(pb);
1743  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1744  mov_write_smhd_tag(pb);
1745  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1746  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1747  mov_write_gmhd_tag(pb, track);
1748  } else {
1749  mov_write_nmhd_tag(pb);
1750  }
1751  } else if (track->tag == MKTAG('r','t','p',' ')) {
1752  mov_write_hmhd_tag(pb);
1753  } else if (track->tag == MKTAG('t','m','c','d')) {
1754  mov_write_gmhd_tag(pb, track);
1755  }
1756  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1757  mov_write_hdlr_tag(pb, NULL);
1758  mov_write_dinf_tag(pb);
1759  mov_write_stbl_tag(pb, track);
1760  return update_size(pb, pos);
1761 }
1762 
1763 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1764 {
1765  int version = track->track_duration < INT32_MAX ? 0 : 1;
1766 
1767  if (track->mode == MODE_ISM)
1768  version = 1;
1769 
1770  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1771  ffio_wfourcc(pb, "mdhd");
1772  avio_w8(pb, version);
1773  avio_wb24(pb, 0); /* flags */
1774  if (version == 1) {
1775  avio_wb64(pb, track->time);
1776  avio_wb64(pb, track->time);
1777  } else {
1778  avio_wb32(pb, track->time); /* creation time */
1779  avio_wb32(pb, track->time); /* modification time */
1780  }
1781  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1782  if (!track->entry)
1783  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1784  else
1785  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1786  avio_wb16(pb, track->language); /* language */
1787  avio_wb16(pb, 0); /* reserved (quality) */
1788 
1789  if (version != 0 && track->mode == MODE_MOV) {
1790  av_log(NULL, AV_LOG_ERROR,
1791  "FATAL error, file duration too long for timebase, this file will not be\n"
1792  "playable with quicktime. Choose a different timebase or a different\n"
1793  "container format\n");
1794  }
1795 
1796  return 32;
1797 }
1798 
1799 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1800 {
1801  int64_t pos = avio_tell(pb);
1802  avio_wb32(pb, 0); /* size */
1803  ffio_wfourcc(pb, "mdia");
1804  mov_write_mdhd_tag(pb, track);
1805  mov_write_hdlr_tag(pb, track);
1806  mov_write_minf_tag(pb, track);
1807  return update_size(pb, pos);
1808 }
1809 
1810 /* transformation matrix
1811  |a b u|
1812  |c d v|
1813  |tx ty w| */
1814 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1815  int16_t d, int16_t tx, int16_t ty)
1816 {
1817  avio_wb32(pb, a << 16); /* 16.16 format */
1818  avio_wb32(pb, b << 16); /* 16.16 format */
1819  avio_wb32(pb, 0); /* u in 2.30 format */
1820  avio_wb32(pb, c << 16); /* 16.16 format */
1821  avio_wb32(pb, d << 16); /* 16.16 format */
1822  avio_wb32(pb, 0); /* v in 2.30 format */
1823  avio_wb32(pb, tx << 16); /* 16.16 format */
1824  avio_wb32(pb, ty << 16); /* 16.16 format */
1825  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1826 }
1827 
1829  MOVTrack *track, AVStream *st)
1830 {
1832  track->timescale, AV_ROUND_UP);
1833  int version = duration < INT32_MAX ? 0 : 1;
1835  int rotation = 0;
1836  int group = 0;
1837 
1838 
1839  if (st) {
1840  if (mov->per_stream_grouping)
1841  group = st->index;
1842  else
1843  group = st->codec->codec_type;
1844  }
1845 
1846  if (track->flags & MOV_TRACK_ENABLED)
1847  flags |= MOV_TKHD_FLAG_ENABLED;
1848 
1849  if (track->mode == MODE_ISM)
1850  version = 1;
1851 
1852  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1853  ffio_wfourcc(pb, "tkhd");
1854  avio_w8(pb, version);
1855  avio_wb24(pb, flags);
1856  if (version == 1) {
1857  avio_wb64(pb, track->time);
1858  avio_wb64(pb, track->time);
1859  } else {
1860  avio_wb32(pb, track->time); /* creation time */
1861  avio_wb32(pb, track->time); /* modification time */
1862  }
1863  avio_wb32(pb, track->track_id); /* track-id */
1864  avio_wb32(pb, 0); /* reserved */
1865  if (!track->entry)
1866  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1867  else
1868  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1869 
1870  avio_wb32(pb, 0); /* reserved */
1871  avio_wb32(pb, 0); /* reserved */
1872  avio_wb16(pb, 0); /* layer */
1873  avio_wb16(pb, group); /* alternate group) */
1874  /* Volume, only for audio */
1875  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1876  avio_wb16(pb, 0x0100);
1877  else
1878  avio_wb16(pb, 0);
1879  avio_wb16(pb, 0); /* reserved */
1880 
1881  /* Matrix structure */
1882  if (st && st->metadata) {
1883  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1884  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1885  }
1886  if (rotation == 90) {
1887  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1888  } else if (rotation == 180) {
1889  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1890  } else if (rotation == 270) {
1891  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1892  } else {
1893  write_matrix(pb, 1, 0, 0, 1, 0, 0);
1894  }
1895  /* Track width and height, for visual only */
1896  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1897  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1898  if (track->mode == MODE_MOV) {
1899  avio_wb32(pb, track->enc->width << 16);
1900  avio_wb32(pb, track->height << 16);
1901  } else {
1902  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1903  if (!sample_aspect_ratio || track->height != track->enc->height)
1904  sample_aspect_ratio = 1;
1905  avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1906  avio_wb32(pb, track->height * 0x10000);
1907  }
1908  } else {
1909  avio_wb32(pb, 0);
1910  avio_wb32(pb, 0);
1911  }
1912  return 0x5c;
1913 }
1914 
1915 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1916 {
1918  track->enc->sample_aspect_ratio.den);
1919 
1920  int64_t pos = avio_tell(pb);
1921 
1922  avio_wb32(pb, 0); /* size */
1923  ffio_wfourcc(pb, "tapt");
1924 
1925  avio_wb32(pb, 20);
1926  ffio_wfourcc(pb, "clef");
1927  avio_wb32(pb, 0);
1928  avio_wb32(pb, width << 16);
1929  avio_wb32(pb, track->enc->height << 16);
1930 
1931  avio_wb32(pb, 20);
1932  ffio_wfourcc(pb, "prof");
1933  avio_wb32(pb, 0);
1934  avio_wb32(pb, width << 16);
1935  avio_wb32(pb, track->enc->height << 16);
1936 
1937  avio_wb32(pb, 20);
1938  ffio_wfourcc(pb, "enof");
1939  avio_wb32(pb, 0);
1940  avio_wb32(pb, track->enc->width << 16);
1941  avio_wb32(pb, track->enc->height << 16);
1942 
1943  return update_size(pb, pos);
1944 }
1945 
1946 // This box seems important for the psp playback ... without it the movie seems to hang
1947 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1948 {
1950  track->timescale, AV_ROUND_UP);
1951  int version = duration < INT32_MAX ? 0 : 1;
1952  int entry_size, entry_count, size;
1953  int64_t delay, start_ct = track->cluster[0].cts;
1954  delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1955  track->timescale, AV_ROUND_DOWN);
1956  version |= delay < INT32_MAX ? 0 : 1;
1957 
1958  entry_size = (version == 1) ? 20 : 12;
1959  entry_count = 1 + (delay > 0);
1960  size = 24 + entry_count * entry_size;
1961 
1962  /* write the atom data */
1963  avio_wb32(pb, size);
1964  ffio_wfourcc(pb, "edts");
1965  avio_wb32(pb, size - 8);
1966  ffio_wfourcc(pb, "elst");
1967  avio_w8(pb, version);
1968  avio_wb24(pb, 0); /* flags */
1969 
1970  avio_wb32(pb, entry_count);
1971  if (delay > 0) { /* add an empty edit to delay presentation */
1972  if (version == 1) {
1973  avio_wb64(pb, delay);
1974  avio_wb64(pb, -1);
1975  } else {
1976  avio_wb32(pb, delay);
1977  avio_wb32(pb, -1);
1978  }
1979  avio_wb32(pb, 0x00010000);
1980  } else {
1982  start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1983  duration += delay;
1984  }
1985 
1986  /* duration */
1987  if (version == 1) {
1988  avio_wb64(pb, duration);
1989  avio_wb64(pb, start_ct);
1990  } else {
1991  avio_wb32(pb, duration);
1992  avio_wb32(pb, start_ct);
1993  }
1994  avio_wb32(pb, 0x00010000);
1995  return size;
1996 }
1997 
1998 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1999 {
2000  avio_wb32(pb, 20); // size
2001  ffio_wfourcc(pb, "tref");
2002  avio_wb32(pb, 12); // size (subatom)
2003  avio_wl32(pb, track->tref_tag);
2004  avio_wb32(pb, track->tref_id);
2005  return 20;
2006 }
2007 
2008 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2010 {
2011  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2012  ffio_wfourcc(pb, "uuid");
2013  ffio_wfourcc(pb, "USMT");
2014  avio_wb32(pb, 0x21d24fce);
2015  avio_wb32(pb, 0xbb88695c);
2016  avio_wb32(pb, 0xfac9c740);
2017  avio_wb32(pb, 0x1c); // another size here!
2018  ffio_wfourcc(pb, "MTDT");
2019  avio_wb32(pb, 0x00010012);
2020  avio_wb32(pb, 0x0a);
2021  avio_wb32(pb, 0x55c40000);
2022  avio_wb32(pb, 0x1);
2023  avio_wb32(pb, 0x0);
2024  return 0x34;
2025 }
2026 
2027 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2028 {
2029  AVFormatContext *ctx = track->rtp_ctx;
2030  char buf[1000] = "";
2031  int len;
2032 
2033  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2034  NULL, NULL, 0, 0, ctx);
2035  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2036  len = strlen(buf);
2037 
2038  avio_wb32(pb, len + 24);
2039  ffio_wfourcc(pb, "udta");
2040  avio_wb32(pb, len + 16);
2041  ffio_wfourcc(pb, "hnti");
2042  avio_wb32(pb, len + 8);
2043  ffio_wfourcc(pb, "sdp ");
2044  avio_write(pb, buf, len);
2045  return len + 24;
2046 }
2047 
2049  const char *tag, const char *str)
2050 {
2051  int64_t pos = avio_tell(pb);
2052  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2053  if (!t || !utf8len(t->value))
2054  return 0;
2055 
2056  avio_wb32(pb, 0); /* size */
2057  ffio_wfourcc(pb, tag); /* type */
2058  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2059  return update_size(pb, pos);
2060 }
2061 
2063  AVStream *st)
2064 {
2065  AVIOContext *pb_buf;
2066  int ret, size;
2067  uint8_t *buf;
2068 
2069  if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2070  return 0;
2071 
2072  ret = avio_open_dyn_buf(&pb_buf);
2073  if (ret < 0)
2074  return ret;
2075 
2076  if (mov->mode & MODE_MP4)
2077  mov_write_track_metadata(pb_buf, st, "name", "title");
2078 
2079  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2080  avio_wb32(pb, size + 8);
2081  ffio_wfourcc(pb, "udta");
2082  avio_write(pb, buf, size);
2083  }
2084  av_free(buf);
2085 
2086  return 0;
2087 }
2088 
2090  MOVTrack *track, AVStream *st)
2091 {
2092  int64_t pos = avio_tell(pb);
2093  avio_wb32(pb, 0); /* size */
2094  ffio_wfourcc(pb, "trak");
2095  mov_write_tkhd_tag(pb, mov, track, st);
2096  if (supports_edts(mov))
2097  mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
2098  if (track->tref_tag)
2099  mov_write_tref_tag(pb, track);
2100  mov_write_mdia_tag(pb, track);
2101  if (track->mode == MODE_PSP)
2102  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2103  if (track->tag == MKTAG('r','t','p',' '))
2104  mov_write_udta_sdp(pb, track);
2105  if (track->mode == MODE_MOV) {
2106  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2107  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2108  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2109  mov_write_tapt_tag(pb, track);
2110  }
2111  }
2112  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2113  mov_write_tapt_tag(pb, track);
2114  }
2115  }
2116  mov_write_track_udta_tag(pb, mov, st);
2117  return update_size(pb, pos);
2118 }
2119 
2121 {
2122  int i, has_audio = 0, has_video = 0;
2123  int64_t pos = avio_tell(pb);
2124  int audio_profile = mov->iods_audio_profile;
2125  int video_profile = mov->iods_video_profile;
2126  for (i = 0; i < mov->nb_streams; i++) {
2127  if (mov->tracks[i].entry > 0) {
2128  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2129  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2130  }
2131  }
2132  if (audio_profile < 0)
2133  audio_profile = 0xFF - has_audio;
2134  if (video_profile < 0)
2135  video_profile = 0xFF - has_video;
2136  avio_wb32(pb, 0x0); /* size */
2137  ffio_wfourcc(pb, "iods");
2138  avio_wb32(pb, 0); /* version & flags */
2139  put_descr(pb, 0x10, 7);
2140  avio_wb16(pb, 0x004f);
2141  avio_w8(pb, 0xff);
2142  avio_w8(pb, 0xff);
2143  avio_w8(pb, audio_profile);
2144  avio_w8(pb, video_profile);
2145  avio_w8(pb, 0xff);
2146  return update_size(pb, pos);
2147 }
2148 
2149 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2150 {
2151  avio_wb32(pb, 0x20); /* size */
2152  ffio_wfourcc(pb, "trex");
2153  avio_wb32(pb, 0); /* version & flags */
2154  avio_wb32(pb, track->track_id); /* track ID */
2155  avio_wb32(pb, 1); /* default sample description index */
2156  avio_wb32(pb, 0); /* default sample duration */
2157  avio_wb32(pb, 0); /* default sample size */
2158  avio_wb32(pb, 0); /* default sample flags */
2159  return 0;
2160 }
2161 
2163 {
2164  int64_t pos = avio_tell(pb);
2165  int i;
2166  avio_wb32(pb, 0x0); /* size */
2167  ffio_wfourcc(pb, "mvex");
2168  for (i = 0; i < mov->nb_streams; i++)
2169  mov_write_trex_tag(pb, &mov->tracks[i]);
2170  return update_size(pb, pos);
2171 }
2172 
2174 {
2175  int max_track_id = 1, i;
2176  int64_t max_track_len_temp, max_track_len = 0;
2177  int version;
2178 
2179  for (i = 0; i < mov->nb_streams; i++) {
2180  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2181  max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2182  MOV_TIMESCALE,
2183  mov->tracks[i].timescale,
2184  AV_ROUND_UP);
2185  if (max_track_len < max_track_len_temp)
2186  max_track_len = max_track_len_temp;
2187  if (max_track_id < mov->tracks[i].track_id)
2188  max_track_id = mov->tracks[i].track_id;
2189  }
2190  }
2191 
2192  version = max_track_len < UINT32_MAX ? 0 : 1;
2193  (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2194  ffio_wfourcc(pb, "mvhd");
2195  avio_w8(pb, version);
2196  avio_wb24(pb, 0); /* flags */
2197  if (version == 1) {
2198  avio_wb64(pb, mov->time);
2199  avio_wb64(pb, mov->time);
2200  } else {
2201  avio_wb32(pb, mov->time); /* creation time */
2202  avio_wb32(pb, mov->time); /* modification time */
2203  }
2204  avio_wb32(pb, MOV_TIMESCALE);
2205  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2206 
2207  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2208  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2209  avio_wb16(pb, 0); /* reserved */
2210  avio_wb32(pb, 0); /* reserved */
2211  avio_wb32(pb, 0); /* reserved */
2212 
2213  /* Matrix structure */
2214  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2215 
2216  avio_wb32(pb, 0); /* reserved (preview time) */
2217  avio_wb32(pb, 0); /* reserved (preview duration) */
2218  avio_wb32(pb, 0); /* reserved (poster time) */
2219  avio_wb32(pb, 0); /* reserved (selection time) */
2220  avio_wb32(pb, 0); /* reserved (selection duration) */
2221  avio_wb32(pb, 0); /* reserved (current time) */
2222  avio_wb32(pb, max_track_id + 1); /* Next track id */
2223  return 0x6c;
2224 }
2225 
2227  AVFormatContext *s)
2228 {
2229  avio_wb32(pb, 33); /* size */
2230  ffio_wfourcc(pb, "hdlr");
2231  avio_wb32(pb, 0);
2232  avio_wb32(pb, 0);
2233  ffio_wfourcc(pb, "mdir");
2234  ffio_wfourcc(pb, "appl");
2235  avio_wb32(pb, 0);
2236  avio_wb32(pb, 0);
2237  avio_w8(pb, 0);
2238  return 33;
2239 }
2240 
2241 /* helper function to write a data tag with the specified string as data */
2242 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2243 {
2244  if (long_style) {
2245  int size = 16 + strlen(data);
2246  avio_wb32(pb, size); /* size */
2247  ffio_wfourcc(pb, "data");
2248  avio_wb32(pb, 1);
2249  avio_wb32(pb, 0);
2250  avio_write(pb, data, strlen(data));
2251  return size;
2252  } else {
2253  if (!lang)
2254  lang = ff_mov_iso639_to_lang("und", 1);
2255  avio_wb16(pb, strlen(data)); /* string length */
2256  avio_wb16(pb, lang);
2257  avio_write(pb, data, strlen(data));
2258  return strlen(data) + 4;
2259  }
2260 }
2261 
2262 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2263  const char *value, int lang, int long_style)
2264 {
2265  int size = 0;
2266  if (value && value[0]) {
2267  int64_t pos = avio_tell(pb);
2268  avio_wb32(pb, 0); /* size */
2269  ffio_wfourcc(pb, name);
2270  mov_write_string_data_tag(pb, value, lang, long_style);
2271  size = update_size(pb, pos);
2272  }
2273  return size;
2274 }
2275 
2277  const char *name, const char *tag,
2278  int long_style)
2279 {
2280  int l, lang = 0, len, len2;
2281  AVDictionaryEntry *t, *t2 = NULL;
2282  char tag2[16];
2283 
2284  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2285  return 0;
2286 
2287  len = strlen(t->key);
2288  snprintf(tag2, sizeof(tag2), "%s-", tag);
2289  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2290  len2 = strlen(t2->key);
2291  if (len2 == len + 4 && !strcmp(t->value, t2->value)
2292  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2293  lang = l;
2294  break;
2295  }
2296  }
2297  return mov_write_string_tag(pb, name, t->value, lang, long_style);
2298 }
2299 
2300 /* iTunes bpm number */
2302 {
2303  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2304  int size = 0, tmpo = t ? atoi(t->value) : 0;
2305  if (tmpo) {
2306  size = 26;
2307  avio_wb32(pb, size);
2308  ffio_wfourcc(pb, "tmpo");
2309  avio_wb32(pb, size-8); /* size */
2310  ffio_wfourcc(pb, "data");
2311  avio_wb32(pb, 0x15); //type specifier
2312  avio_wb32(pb, 0);
2313  avio_wb16(pb, tmpo); // data
2314  }
2315  return size;
2316 }
2317 
2318 /* iTunes track or disc number */
2320  AVFormatContext *s, int disc)
2321 {
2323  disc ? "disc" : "track",
2324  NULL, 0);
2325  int size = 0, track = t ? atoi(t->value) : 0;
2326  if (track) {
2327  int tracks = 0;
2328  char *slash = strchr(t->value, '/');
2329  if (slash)
2330  tracks = atoi(slash + 1);
2331  avio_wb32(pb, 32); /* size */
2332  ffio_wfourcc(pb, disc ? "disk" : "trkn");
2333  avio_wb32(pb, 24); /* size */
2334  ffio_wfourcc(pb, "data");
2335  avio_wb32(pb, 0); // 8 bytes empty
2336  avio_wb32(pb, 0);
2337  avio_wb16(pb, 0); // empty
2338  avio_wb16(pb, track); // track / disc number
2339  avio_wb16(pb, tracks); // total track / disc number
2340  avio_wb16(pb, 0); // empty
2341  size = 32;
2342  }
2343  return size;
2344 }
2345 
2347  const char *name, const char *tag,
2348  int len)
2349 {
2350  AVDictionaryEntry *t = NULL;
2351  uint8_t num;
2352  int size = 24 + len;
2353 
2354  if (len != 1 && len != 4)
2355  return -1;
2356 
2357  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2358  return 0;
2359  num = atoi(t->value);
2360 
2361  avio_wb32(pb, size);
2362  ffio_wfourcc(pb, name);
2363  avio_wb32(pb, size - 8);
2364  ffio_wfourcc(pb, "data");
2365  avio_wb32(pb, 0x15);
2366  avio_wb32(pb, 0);
2367  if (len==4) avio_wb32(pb, num);
2368  else avio_w8 (pb, num);
2369 
2370  return size;
2371 }
2372 
2373 /* iTunes meta data list */
2375  AVFormatContext *s)
2376 {
2377  int64_t pos = avio_tell(pb);
2378  avio_wb32(pb, 0); /* size */
2379  ffio_wfourcc(pb, "ilst");
2380  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2381  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2382  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2383  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2384  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2385  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2386  if (!mov->exact &&
2387  !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2388  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2389  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2390  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2391  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2392  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2393  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2394  mov_write_string_metadata(s, pb, "desc", "description",1);
2395  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2396  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2397  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2398  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2399  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2400  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2401  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2402  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2403  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2404  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2405  mov_write_trkn_tag(pb, mov, s, 0); // track number
2406  mov_write_trkn_tag(pb, mov, s, 1); // disc number
2407  mov_write_tmpo_tag(pb, s);
2408  return update_size(pb, pos);
2409 }
2410 
2411 /* iTunes meta data tag */
2413  AVFormatContext *s)
2414 {
2415  int size = 0;
2416  int64_t pos = avio_tell(pb);
2417  avio_wb32(pb, 0); /* size */
2418  ffio_wfourcc(pb, "meta");
2419  avio_wb32(pb, 0);
2420  mov_write_itunes_hdlr_tag(pb, mov, s);
2421  mov_write_ilst_tag(pb, mov, s);
2422  size = update_size(pb, pos);
2423  return size;
2424 }
2425 
2427  const char *name, const char *key)
2428 {
2429  int len;
2430  AVDictionaryEntry *t;
2431 
2432  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2433  return 0;
2434 
2435  len = strlen(t->value);
2436  if (len > 0) {
2437  int size = len + 8;
2438  avio_wb32(pb, size);
2439  ffio_wfourcc(pb, name);
2440  avio_write(pb, t->value, len);
2441  return size;
2442  }
2443  return 0;
2444 }
2445 
2446 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2447 {
2448  int val;
2449  while (*b) {
2450  GET_UTF8(val, *b++, return -1;)
2451  avio_wb16(pb, val);
2452  }
2453  avio_wb16(pb, 0x00);
2454  return 0;
2455 }
2456 
2457 static uint16_t language_code(const char *str)
2458 {
2459  return (((str[0] - 0x60) & 0x1F) << 10) +
2460  (((str[1] - 0x60) & 0x1F) << 5) +
2461  (( str[2] - 0x60) & 0x1F);
2462 }
2463 
2465  const char *tag, const char *str)
2466 {
2467  int64_t pos = avio_tell(pb);
2468  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2469  if (!t || !utf8len(t->value))
2470  return 0;
2471  avio_wb32(pb, 0); /* size */
2472  ffio_wfourcc(pb, tag); /* type */
2473  avio_wb32(pb, 0); /* version + flags */
2474  if (!strcmp(tag, "yrrc"))
2475  avio_wb16(pb, atoi(t->value));
2476  else {
2477  avio_wb16(pb, language_code("eng")); /* language */
2478  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2479  if (!strcmp(tag, "albm") &&
2480  (t = av_dict_get(s->metadata, "track", NULL, 0)))
2481  avio_w8(pb, atoi(t->value));
2482  }
2483  return update_size(pb, pos);
2484 }
2485 
2487 {
2488  int64_t pos = avio_tell(pb);
2489  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2490 
2491  avio_wb32(pb, 0); // size
2492  ffio_wfourcc(pb, "chpl");
2493  avio_wb32(pb, 0x01000000); // version + flags
2494  avio_wb32(pb, 0); // unknown
2495  avio_w8(pb, nb_chapters);
2496 
2497  for (i = 0; i < nb_chapters; i++) {
2498  AVChapter *c = s->chapters[i];
2499  AVDictionaryEntry *t;
2500  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2501 
2502  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2503  int len = FFMIN(strlen(t->value), 255);
2504  avio_w8(pb, len);
2505  avio_write(pb, t->value, len);
2506  } else
2507  avio_w8(pb, 0);
2508  }
2509  return update_size(pb, pos);
2510 }
2511 
2513  AVFormatContext *s)
2514 {
2515  AVIOContext *pb_buf;
2516  int ret, size;
2517  uint8_t *buf;
2518 
2519  ret = avio_open_dyn_buf(&pb_buf);
2520  if (ret < 0)
2521  return ret;
2522 
2523  if (mov->mode & MODE_3GP) {
2524  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2525  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2526  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2527  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2528  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2529  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2530  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2531  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2532  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2533  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2534  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2535  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2536  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2537  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2538  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2539  // currently ignored by mov.c
2540  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2541  // add support for libquicktime, this atom is also actually read by mov.c
2542  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2543  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2544  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2545  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2546  } else {
2547  /* iTunes meta data */
2548  mov_write_meta_tag(pb_buf, mov, s);
2549  }
2550 
2551  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2552  mov_write_chpl_tag(pb_buf, s);
2553 
2554  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2555  avio_wb32(pb, size + 8);
2556  ffio_wfourcc(pb, "udta");
2557  avio_write(pb, buf, size);
2558  }
2559  av_free(buf);
2560 
2561  return 0;
2562 }
2563 
2565  const char *str, const char *lang, int type)
2566 {
2567  int len = utf8len(str) + 1;
2568  if (len <= 0)
2569  return;
2570  avio_wb16(pb, len * 2 + 10); /* size */
2571  avio_wb32(pb, type); /* type */
2572  avio_wb16(pb, language_code(lang)); /* language */
2573  avio_wb16(pb, 0x01); /* ? */
2574  ascii_to_wc(pb, str);
2575 }
2576 
2578 {
2579  MOVMuxContext *mov = s->priv_data;
2580  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2581  int64_t pos, pos2;
2582 
2583  if (title) {
2584  pos = avio_tell(pb);
2585  avio_wb32(pb, 0); /* size placeholder*/
2586  ffio_wfourcc(pb, "uuid");
2587  ffio_wfourcc(pb, "USMT");
2588  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2589  avio_wb32(pb, 0xbb88695c);
2590  avio_wb32(pb, 0xfac9c740);
2591 
2592  pos2 = avio_tell(pb);
2593  avio_wb32(pb, 0); /* size placeholder*/
2594  ffio_wfourcc(pb, "MTDT");
2595  avio_wb16(pb, 4);
2596 
2597  // ?
2598  avio_wb16(pb, 0x0C); /* size */
2599  avio_wb32(pb, 0x0B); /* type */
2600  avio_wb16(pb, language_code("und")); /* language */
2601  avio_wb16(pb, 0x0); /* ? */
2602  avio_wb16(pb, 0x021C); /* data */
2603 
2604  if (!mov->exact)
2605  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2606  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2607  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2608 
2609  update_size(pb, pos2);
2610  return update_size(pb, pos);
2611  }
2612 
2613  return 0;
2614 }
2615 
2616 static void build_chunks(MOVTrack *trk)
2617 {
2618  int i;
2619  MOVIentry *chunk = &trk->cluster[0];
2620  uint64_t chunkSize = chunk->size;
2621  chunk->chunkNum = 1;
2622  if (trk->chunkCount)
2623  return;
2624  trk->chunkCount = 1;
2625  for (i = 1; i<trk->entry; i++){
2626  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2627  chunkSize + trk->cluster[i].size < (1<<20)){
2628  chunkSize += trk->cluster[i].size;
2629  chunk->samples_in_chunk += trk->cluster[i].entries;
2630  } else {
2631  trk->cluster[i].chunkNum = chunk->chunkNum+1;
2632  chunk=&trk->cluster[i];
2633  chunkSize = chunk->size;
2634  trk->chunkCount++;
2635  }
2636  }
2637 }
2638 
2640  AVFormatContext *s)
2641 {
2642  int i;
2643  int64_t pos = avio_tell(pb);
2644  avio_wb32(pb, 0); /* size placeholder*/
2645  ffio_wfourcc(pb, "moov");
2646 
2647  for (i = 0; i < mov->nb_streams; i++) {
2648  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2649  continue;
2650 
2651  mov->tracks[i].time = mov->time;
2652  mov->tracks[i].track_id = i + 1;
2653 
2654  if (mov->tracks[i].entry)
2655  build_chunks(&mov->tracks[i]);
2656  }
2657 
2658  if (mov->chapter_track)
2659  for (i = 0; i < s->nb_streams; i++) {
2660  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2661  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2662  }
2663  for (i = 0; i < mov->nb_streams; i++) {
2664  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2665  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2666  mov->tracks[i].tref_id =
2667  mov->tracks[mov->tracks[i].src_track].track_id;
2668  }
2669  }
2670  for (i = 0; i < mov->nb_streams; i++) {
2671  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2672  int src_trk = mov->tracks[i].src_track;
2673  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2674  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2675  //src_trk may have a different timescale than the tmcd track
2676  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2677  mov->tracks[i].timescale,
2678  mov->tracks[src_trk].timescale);
2679  }
2680  }
2681 
2682  mov_write_mvhd_tag(pb, mov);
2683  if (mov->mode != MODE_MOV && !mov->iods_skip)
2684  mov_write_iods_tag(pb, mov);
2685  for (i = 0; i < mov->nb_streams; i++) {
2686  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2687  mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2688  }
2689  }
2690  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2691  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2692 
2693  if (mov->mode == MODE_PSP)
2694  mov_write_uuidusmt_tag(pb, s);
2695  else
2696  mov_write_udta_tag(pb, mov, s);
2697 
2698  return update_size(pb, pos);
2699 }
2700 
2701 static void param_write_int(AVIOContext *pb, const char *name, int value)
2702 {
2703  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2704 }
2705 
2706 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2707 {
2708  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2709 }
2710 
2711 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2712 {
2713  char buf[150];
2714  len = FFMIN(sizeof(buf) / 2 - 1, len);
2715  ff_data_to_hex(buf, value, len, 0);
2716  buf[2 * len] = '\0';
2717  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2718 }
2719 
2721 {
2722  int64_t pos = avio_tell(pb);
2723  int i;
2724  static const uint8_t uuid[] = {
2725  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2726  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2727  };
2728 
2729  avio_wb32(pb, 0);
2730  ffio_wfourcc(pb, "uuid");
2731  avio_write(pb, uuid, sizeof(uuid));
2732  avio_wb32(pb, 0);
2733 
2734  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2735  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2736  avio_printf(pb, "<head>\n");
2737  if (!mov->exact)
2738  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2740  avio_printf(pb, "</head>\n");
2741  avio_printf(pb, "<body>\n");
2742  avio_printf(pb, "<switch>\n");
2743  for (i = 0; i < mov->nb_streams; i++) {
2744  MOVTrack *track = &mov->tracks[i];
2745  const char *type;
2746  /* track->track_id is initialized in write_moov, and thus isn't known
2747  * here yet */
2748  int track_id = i + 1;
2749 
2750  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2751  type = "video";
2752  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2753  type = "audio";
2754  } else {
2755  continue;
2756  }
2757  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2758  track->enc->bit_rate);
2759  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2760  param_write_int(pb, "trackID", track_id);
2761  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2762  if (track->enc->codec_id == AV_CODEC_ID_H264) {
2763  uint8_t *ptr;
2764  int size = track->enc->extradata_size;
2765  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2766  &size)) {
2767  param_write_hex(pb, "CodecPrivateData",
2768  ptr ? ptr : track->enc->extradata,
2769  size);
2770  av_free(ptr);
2771  }
2772  param_write_string(pb, "FourCC", "H264");
2773  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2774  param_write_string(pb, "FourCC", "WVC1");
2775  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2776  track->enc->extradata_size);
2777  }
2778  param_write_int(pb, "MaxWidth", track->enc->width);
2779  param_write_int(pb, "MaxHeight", track->enc->height);
2780  param_write_int(pb, "DisplayWidth", track->enc->width);
2781  param_write_int(pb, "DisplayHeight", track->enc->height);
2782  } else {
2783  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2784  param_write_string(pb, "FourCC", "AACL");
2785  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2786  param_write_string(pb, "FourCC", "WMAP");
2787  }
2788  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2789  track->enc->extradata_size);
2791  track->enc->codec_id));
2792  param_write_int(pb, "Channels", track->enc->channels);
2793  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2794  param_write_int(pb, "BitsPerSample", 16);
2795  param_write_int(pb, "PacketSize", track->enc->block_align ?
2796  track->enc->block_align : 4);
2797  }
2798  avio_printf(pb, "</%s>\n", type);
2799  }
2800  avio_printf(pb, "</switch>\n");
2801  avio_printf(pb, "</body>\n");
2802  avio_printf(pb, "</smil>\n");
2803 
2804  return update_size(pb, pos);
2805 }
2806 
2808 {
2809  avio_wb32(pb, 16);
2810  ffio_wfourcc(pb, "mfhd");
2811  avio_wb32(pb, 0);
2812  avio_wb32(pb, mov->fragments);
2813  return 0;
2814 }
2815 
2817  MOVTrack *track, int64_t moof_offset)
2818 {
2819  int64_t pos = avio_tell(pb);
2822  if (!track->entry) {
2823  flags |= MOV_TFHD_DURATION_IS_EMPTY;
2824  } else {
2825  flags |= MOV_TFHD_DEFAULT_FLAGS;
2826  }
2828  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2829 
2830  /* Don't set a default sample size, the silverlight player refuses
2831  * to play files with that set. Don't set a default sample duration,
2832  * WMP freaks out if it is set. Don't set a base data offset, PIFF
2833  * file format says it MUST NOT be set. */
2834  if (track->mode == MODE_ISM)
2837 
2838  avio_wb32(pb, 0); /* size placeholder */
2839  ffio_wfourcc(pb, "tfhd");
2840  avio_w8(pb, 0); /* version */
2841  avio_wb24(pb, flags);
2842 
2843  avio_wb32(pb, track->track_id); /* track-id */
2844  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2845  avio_wb64(pb, moof_offset);
2846  if (flags & MOV_TFHD_DEFAULT_DURATION) {
2847  track->default_duration = get_cluster_duration(track, 0);
2848  avio_wb32(pb, track->default_duration);
2849  }
2850  if (flags & MOV_TFHD_DEFAULT_SIZE) {
2851  track->default_size = track->entry ? track->cluster[0].size : 1;
2852  avio_wb32(pb, track->default_size);
2853  } else
2854  track->default_size = -1;
2855 
2856  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2857  track->default_sample_flags =
2858  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2861  avio_wb32(pb, track->default_sample_flags);
2862  }
2863 
2864  return update_size(pb, pos);
2865 }
2866 
2867 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2868 {
2871 }
2872 
2874  MOVTrack *track, int moof_size)
2875 {
2876  int64_t pos = avio_tell(pb);
2877  uint32_t flags = MOV_TRUN_DATA_OFFSET;
2878  int i;
2879 
2880  for (i = 0; i < track->entry; i++) {
2881  if (get_cluster_duration(track, i) != track->default_duration)
2882  flags |= MOV_TRUN_SAMPLE_DURATION;
2883  if (track->cluster[i].size != track->default_size)
2884  flags |= MOV_TRUN_SAMPLE_SIZE;
2885  if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2886  flags |= MOV_TRUN_SAMPLE_FLAGS;
2887  }
2888  if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2889  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2890  if (track->flags & MOV_TRACK_CTTS)
2891  flags |= MOV_TRUN_SAMPLE_CTS;
2892 
2893  avio_wb32(pb, 0); /* size placeholder */
2894  ffio_wfourcc(pb, "trun");
2895  avio_w8(pb, 0); /* version */
2896  avio_wb24(pb, flags);
2897 
2898  avio_wb32(pb, track->entry); /* sample count */
2899  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2900  !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2901  track->track_id != 1)
2902  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2903  else
2904  avio_wb32(pb, moof_size + 8 + track->data_offset +
2905  track->cluster[0].pos); /* data offset */
2906  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2907  avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2908 
2909  for (i = 0; i < track->entry; i++) {
2910  if (flags & MOV_TRUN_SAMPLE_DURATION)
2911  avio_wb32(pb, get_cluster_duration(track, i));
2912  if (flags & MOV_TRUN_SAMPLE_SIZE)
2913  avio_wb32(pb, track->cluster[i].size);
2914  if (flags & MOV_TRUN_SAMPLE_FLAGS)
2915  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2916  if (flags & MOV_TRUN_SAMPLE_CTS)
2917  avio_wb32(pb, track->cluster[i].cts);
2918  }
2919 
2920  return update_size(pb, pos);
2921 }
2922 
2923 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2924 {
2925  int64_t pos = avio_tell(pb);
2926  static const uint8_t uuid[] = {
2927  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2928  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2929  };
2930 
2931  avio_wb32(pb, 0); /* size placeholder */
2932  ffio_wfourcc(pb, "uuid");
2933  avio_write(pb, uuid, sizeof(uuid));
2934  avio_w8(pb, 1);
2935  avio_wb24(pb, 0);
2936  avio_wb64(pb, track->frag_start);
2937  avio_wb64(pb, track->start_dts + track->track_duration -
2938  track->cluster[0].dts);
2939 
2940  return update_size(pb, pos);
2941 }
2942 
2944  MOVTrack *track, int entry)
2945 {
2946  int n = track->nb_frag_info - 1 - entry, i;
2947  int size = 8 + 16 + 4 + 1 + 16*n;
2948  static const uint8_t uuid[] = {
2949  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2950  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2951  };
2952 
2953  if (entry < 0)
2954  return 0;
2955 
2956  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2957  avio_wb32(pb, size);
2958  ffio_wfourcc(pb, "uuid");
2959  avio_write(pb, uuid, sizeof(uuid));
2960  avio_w8(pb, 1);
2961  avio_wb24(pb, 0);
2962  avio_w8(pb, n);
2963  for (i = 0; i < n; i++) {
2964  int index = entry + 1 + i;
2965  avio_wb64(pb, track->frag_info[index].time);
2966  avio_wb64(pb, track->frag_info[index].duration);
2967  }
2968  if (n < mov->ism_lookahead) {
2969  int free_size = 16 * (mov->ism_lookahead - n);
2970  avio_wb32(pb, free_size);
2971  ffio_wfourcc(pb, "free");
2972  ffio_fill(pb, 0, free_size - 8);
2973  }
2974 
2975  return 0;
2976 }
2977 
2979  MOVTrack *track)
2980 {
2981  int64_t pos = avio_tell(pb);
2982  int i;
2983  for (i = 0; i < mov->ism_lookahead; i++) {
2984  /* Update the tfrf tag for the last ism_lookahead fragments,
2985  * nb_frag_info - 1 is the next fragment to be written. */
2986  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2987  }
2988  avio_seek(pb, pos, SEEK_SET);
2989  return 0;
2990 }
2991 
2993  MOVTrack *track, int64_t moof_offset,
2994  int moof_size)
2995 {
2996  int64_t pos = avio_tell(pb);
2997  avio_wb32(pb, 0); /* size placeholder */
2998  ffio_wfourcc(pb, "traf");
2999 
3000  mov_write_tfhd_tag(pb, mov, track, moof_offset);
3001  mov_write_trun_tag(pb, mov, track, moof_size);
3002  if (mov->mode == MODE_ISM) {
3003  mov_write_tfxd_tag(pb, track);
3004 
3005  if (mov->ism_lookahead) {
3006  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3007 
3008  track->tfrf_offset = avio_tell(pb);
3009  avio_wb32(pb, 8 + size);
3010  ffio_wfourcc(pb, "free");
3011  for (i = 0; i < size; i++)
3012  avio_w8(pb, 0);
3013  }
3014  }
3015 
3016  return update_size(pb, pos);
3017 }
3018 
3020  int tracks, int moof_size)
3021 {
3022  int64_t pos = avio_tell(pb);
3023  int i;
3024 
3025  avio_wb32(pb, 0); /* size placeholder */
3026  ffio_wfourcc(pb, "moof");
3027 
3028  mov_write_mfhd_tag(pb, mov);
3029  for (i = 0; i < mov->nb_streams; i++) {
3030  MOVTrack *track = &mov->tracks[i];
3031  if (tracks >= 0 && i != tracks)
3032  continue;
3033  if (!track->entry)
3034  continue;
3035  mov_write_traf_tag(pb, mov, track, pos, moof_size);
3036  }
3037 
3038  return update_size(pb, pos);
3039 }
3040 
3041 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
3042 {
3043  AVIOContext *avio_buf;
3044  int ret, moof_size;
3045 
3046  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3047  return ret;
3048  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3049  moof_size = ffio_close_null_buf(avio_buf);
3050  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3051 }
3052 
3053 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3054 {
3055  int64_t pos = avio_tell(pb);
3056  int i;
3057 
3058  avio_wb32(pb, 0); /* size placeholder */
3059  ffio_wfourcc(pb, "tfra");
3060  avio_w8(pb, 1); /* version */
3061  avio_wb24(pb, 0);
3062 
3063  avio_wb32(pb, track->track_id);
3064  avio_wb32(pb, 0); /* length of traf/trun/sample num */
3065  avio_wb32(pb, track->nb_frag_info);
3066  for (i = 0; i < track->nb_frag_info; i++) {
3067  avio_wb64(pb, track->frag_info[i].time);
3068  avio_wb64(pb, track->frag_info[i].offset);
3069  avio_w8(pb, 1); /* traf number */
3070  avio_w8(pb, 1); /* trun number */
3071  avio_w8(pb, 1); /* sample number */
3072  }
3073 
3074  return update_size(pb, pos);
3075 }
3076 
3078 {
3079  int64_t pos = avio_tell(pb);
3080  int i;
3081 
3082  avio_wb32(pb, 0); /* size placeholder */
3083  ffio_wfourcc(pb, "mfra");
3084  /* An empty mfra atom is enough to indicate to the publishing point that
3085  * the stream has ended. */
3086  if (mov->flags & FF_MOV_FLAG_ISML)
3087  return update_size(pb, pos);
3088 
3089  for (i = 0; i < mov->nb_streams; i++) {
3090  MOVTrack *track = &mov->tracks[i];
3091  if (track->nb_frag_info)
3092  mov_write_tfra_tag(pb, track);
3093  }
3094 
3095  avio_wb32(pb, 16);
3096  ffio_wfourcc(pb, "mfro");
3097  avio_wb32(pb, 0); /* version + flags */
3098  avio_wb32(pb, avio_tell(pb) + 4 - pos);
3099 
3100  return update_size(pb, pos);
3101 }
3102 
3104 {
3105  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3106  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3107 
3108  mov->mdat_pos = avio_tell(pb);
3109  avio_wb32(pb, 0); /* size placeholder*/
3110  ffio_wfourcc(pb, "mdat");
3111  return 0;
3112 }
3113 
3114 /* TODO: This needs to be more general */
3116 {
3117  MOVMuxContext *mov = s->priv_data;
3118  int64_t pos = avio_tell(pb);
3119  int has_h264 = 0, has_video = 0;
3120  int minor = 0x200;
3121  int i;
3122 
3123  for (i = 0; i < s->nb_streams; i++) {
3124  AVStream *st = s->streams[i];
3125  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3126  has_video = 1;
3127  if (st->codec->codec_id == AV_CODEC_ID_H264)
3128  has_h264 = 1;
3129  }
3130 
3131  avio_wb32(pb, 0); /* size */
3132  ffio_wfourcc(pb, "ftyp");
3133 
3134  if (mov->major_brand && strlen(mov->major_brand) >= 4)
3135  ffio_wfourcc(pb, mov->major_brand);
3136  else if (mov->mode == MODE_3GP) {
3137  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3138  minor = has_h264 ? 0x100 : 0x200;
3139  } else if (mov->mode & MODE_3G2) {
3140  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3141  minor = has_h264 ? 0x20000 : 0x10000;
3142  } else if (mov->mode == MODE_PSP)
3143  ffio_wfourcc(pb, "MSNV");
3144  else if (mov->mode == MODE_MP4)
3145  ffio_wfourcc(pb, "isom");
3146  else if (mov->mode == MODE_IPOD)
3147  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3148  else if (mov->mode == MODE_ISM)
3149  ffio_wfourcc(pb, "isml");
3150  else if (mov->mode == MODE_F4V)
3151  ffio_wfourcc(pb, "f4v ");
3152  else
3153  ffio_wfourcc(pb, "qt ");
3154 
3155  avio_wb32(pb, minor);
3156 
3157  if (mov->mode == MODE_MOV)
3158  ffio_wfourcc(pb, "qt ");
3159  else if (mov->mode == MODE_ISM) {
3160  ffio_wfourcc(pb, "piff");
3161  ffio_wfourcc(pb, "iso2");
3162  } else {
3163  ffio_wfourcc(pb, "isom");
3164  ffio_wfourcc(pb, "iso2");
3165  if (has_h264)
3166  ffio_wfourcc(pb, "avc1");
3167  }
3168 
3169  if (mov->mode == MODE_3GP)
3170  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3171  else if (mov->mode & MODE_3G2)
3172  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3173  else if (mov->mode == MODE_PSP)
3174  ffio_wfourcc(pb, "MSNV");
3175  else if (mov->mode == MODE_MP4)
3176  ffio_wfourcc(pb, "mp41");
3177  return update_size(pb, pos);
3178 }
3179 
3181 {
3182  AVStream *video_st = s->streams[0];
3183  AVCodecContext *video_codec = s->streams[0]->codec;
3184  AVCodecContext *audio_codec = s->streams[1]->codec;
3185  int audio_rate = audio_codec->sample_rate;
3186  // TODO: should be avg_frame_rate
3187  int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3188  int audio_kbitrate = audio_codec->bit_rate / 1000;
3189  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3190 
3191  avio_wb32(pb, 0x94); /* size */
3192  ffio_wfourcc(pb, "uuid");
3193  ffio_wfourcc(pb, "PROF");
3194 
3195  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3196  avio_wb32(pb, 0xbb88695c);
3197  avio_wb32(pb, 0xfac9c740);
3198 
3199  avio_wb32(pb, 0x0); /* ? */
3200  avio_wb32(pb, 0x3); /* 3 sections ? */
3201 
3202  avio_wb32(pb, 0x14); /* size */
3203  ffio_wfourcc(pb, "FPRF");
3204  avio_wb32(pb, 0x0); /* ? */
3205  avio_wb32(pb, 0x0); /* ? */
3206  avio_wb32(pb, 0x0); /* ? */
3207 
3208  avio_wb32(pb, 0x2c); /* size */
3209  ffio_wfourcc(pb, "APRF"); /* audio */
3210  avio_wb32(pb, 0x0);
3211  avio_wb32(pb, 0x2); /* TrackID */
3212  ffio_wfourcc(pb, "mp4a");
3213  avio_wb32(pb, 0x20f);
3214  avio_wb32(pb, 0x0);
3215  avio_wb32(pb, audio_kbitrate);
3216  avio_wb32(pb, audio_kbitrate);
3217  avio_wb32(pb, audio_rate);
3218  avio_wb32(pb, audio_codec->channels);
3219 
3220  avio_wb32(pb, 0x34); /* size */
3221  ffio_wfourcc(pb, "VPRF"); /* video */
3222  avio_wb32(pb, 0x0);
3223  avio_wb32(pb, 0x1); /* TrackID */
3224  if (video_codec->codec_id == AV_CODEC_ID_H264) {
3225  ffio_wfourcc(pb, "avc1");
3226  avio_wb16(pb, 0x014D);
3227  avio_wb16(pb, 0x0015);
3228  } else {
3229  ffio_wfourcc(pb, "mp4v");
3230  avio_wb16(pb, 0x0000);
3231  avio_wb16(pb, 0x0103);
3232  }
3233  avio_wb32(pb, 0x0);
3234  avio_wb32(pb, video_kbitrate);
3235  avio_wb32(pb, video_kbitrate);
3236  avio_wb32(pb, frame_rate);
3237  avio_wb32(pb, frame_rate);
3238  avio_wb16(pb, video_codec->width);
3239  avio_wb16(pb, video_codec->height);
3240  avio_wb32(pb, 0x010001); /* ? */
3241 }
3242 
3243 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3244 {
3245  uint32_t c = -1;
3246  int i, closed_gop = 0;
3247 
3248  for (i = 0; i < pkt->size - 4; i++) {
3249  c = (c << 8) + pkt->data[i];
3250  if (c == 0x1b8) { // gop
3251  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3252  } else if (c == 0x100) { // pic
3253  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3254  if (!temp_ref || closed_gop) // I picture is not reordered
3255  *flags = MOV_SYNC_SAMPLE;
3256  else
3257  *flags = MOV_PARTIAL_SYNC_SAMPLE;
3258  break;
3259  }
3260  }
3261  return 0;
3262 }
3263 
3264 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3265 {
3266  const uint8_t *start, *next, *end = pkt->data + pkt->size;
3267  int seq = 0, entry = 0;
3268  int key = pkt->flags & AV_PKT_FLAG_KEY;
3269  start = find_next_marker(pkt->data, end);
3270  for (next = start; next < end; start = next) {
3271  next = find_next_marker(start + 4, end);
3272  switch (AV_RB32(start)) {
3273  case VC1_CODE_SEQHDR:
3274  seq = 1;
3275  break;
3276  case VC1_CODE_ENTRYPOINT:
3277  entry = 1;
3278  break;
3279  case VC1_CODE_SLICE:
3280  trk->vc1_info.slices = 1;
3281  break;
3282  }
3283  }
3284  if (!trk->entry && !fragment) {
3285  /* First packet in first fragment */
3286  trk->vc1_info.first_packet_seq = seq;
3287  trk->vc1_info.first_packet_entry = entry;
3288  } else if ((seq && !trk->vc1_info.packet_seq) ||
3289  (entry && !trk->vc1_info.packet_entry)) {
3290  int i;
3291  for (i = 0; i < trk->entry; i++)
3292  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3293  trk->has_keyframes = 0;
3294  if (seq)
3295  trk->vc1_info.packet_seq = 1;
3296  if (entry)
3297  trk->vc1_info.packet_entry = 1;
3298  if (!fragment) {
3299  /* First fragment */
3300  if ((!seq || trk->vc1_info.first_packet_seq) &&
3301  (!entry || trk->vc1_info.first_packet_entry)) {
3302  /* First packet had the same headers as this one, readd the
3303  * sync sample flag. */
3304  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3305  trk->has_keyframes = 1;
3306  }
3307  }
3308  }
3309  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3310  key = seq && entry;
3311  else if (trk->vc1_info.packet_seq)
3312  key = seq;
3313  else if (trk->vc1_info.packet_entry)
3314  key = entry;
3315  if (key) {
3316  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3317  trk->has_keyframes++;
3318  }
3319 }
3320 
3322 {
3323  MOVMuxContext *mov = s->priv_data;
3324  int i, first_track = -1;
3325  int64_t mdat_size = 0;
3326 
3327  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3328  return 0;
3329 
3330  if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3331  int64_t pos = avio_tell(s->pb);
3332  uint8_t *buf;
3333  int buf_size, moov_size;
3334 
3335  for (i = 0; i < mov->nb_streams; i++)
3336  if (!mov->tracks[i].entry)
3337  break;
3338  /* Don't write the initial moov unless all tracks have data */
3339  if (i < mov->nb_streams)
3340  return 0;
3341 
3342  moov_size = get_moov_size(s);
3343  for (i = 0; i < mov->nb_streams; i++)
3344  mov->tracks[i].data_offset = pos + moov_size + 8;
3345 
3346  mov_write_moov_tag(s->pb, mov, s);
3347 
3348  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3349  mov->mdat_buf = NULL;
3350  avio_wb32(s->pb, buf_size + 8);
3351  ffio_wfourcc(s->pb, "mdat");
3352  avio_write(s->pb, buf, buf_size);
3353  av_free(buf);
3354 
3355  mov->fragments++;
3356  mov->mdat_size = 0;
3357  for (i = 0; i < mov->nb_streams; i++) {
3358  if (mov->tracks[i].entry)
3359  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3360  mov->tracks[i].track_duration -
3361  mov->tracks[i].cluster[0].dts;
3362  mov->tracks[i].entry = 0;
3363  }
3364  avio_flush(s->pb);
3365  return 0;
3366  }
3367 
3368  for (i = 0; i < mov->nb_streams; i++) {
3369  MOVTrack *track = &mov->tracks[i];
3370  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3371  track->data_offset = 0;
3372  else
3373  track->data_offset = mdat_size;
3374  if (!track->mdat_buf)
3375  continue;
3376  mdat_size += avio_tell(track->mdat_buf);
3377  if (first_track < 0)
3378  first_track = i;
3379  }
3380 
3381  if (!mdat_size)
3382  return 0;
3383 
3384  for (i = 0; i < mov->nb_streams; i++) {
3385  MOVTrack *track = &mov->tracks[i];
3386  int buf_size, write_moof = 1, moof_tracks = -1;
3387  uint8_t *buf;
3388  int64_t duration = 0;
3389 
3390  if (track->entry)
3391  duration = track->start_dts + track->track_duration -
3392  track->cluster[0].dts;
3393  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3394  if (!track->mdat_buf)
3395  continue;
3396  mdat_size = avio_tell(track->mdat_buf);
3397  moof_tracks = i;
3398  } else {
3399  write_moof = i == first_track;
3400  }
3401 
3402  if (write_moof) {
3403  MOVFragmentInfo *info;
3404  avio_flush(s->pb);
3405  track->nb_frag_info++;
3406  if (track->nb_frag_info >= track->frag_info_capacity) {
3407  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3408  if (av_reallocp_array(&track->frag_info,
3409  new_capacity,
3410  sizeof(*track->frag_info)))
3411  return AVERROR(ENOMEM);
3412  track->frag_info_capacity = new_capacity;
3413  }
3414  info = &track->frag_info[track->nb_frag_info - 1];
3415  info->offset = avio_tell(s->pb);
3416  info->time = mov->tracks[i].frag_start;
3417  info->duration = duration;
3418  mov_write_tfrf_tags(s->pb, mov, track);
3419 
3420  mov_write_moof_tag(s->pb, mov, moof_tracks);
3421  info->tfrf_offset = track->tfrf_offset;
3422  mov->fragments++;
3423 
3424  avio_wb32(s->pb, mdat_size + 8);
3425  ffio_wfourcc(s->pb, "mdat");
3426  }
3427 
3428  if (track->entry)
3429  track->frag_start += duration;
3430  track->entry = 0;
3431  if (!track->mdat_buf)
3432  continue;
3433  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3434  track->mdat_buf = NULL;
3435 
3436  avio_write(s->pb, buf, buf_size);
3437  av_free(buf);
3438  }
3439 
3440  mov->mdat_size = 0;
3441 
3442  avio_flush(s->pb);
3443  return 0;
3444 }
3445 
3447 {
3448  MOVMuxContext *mov = s->priv_data;
3449  AVIOContext *pb = s->pb;
3450  MOVTrack *trk = &mov->tracks[pkt->stream_index];
3451  AVCodecContext *enc = trk->enc;
3452  unsigned int samples_in_chunk = 0;
3453  int size = pkt->size;
3454  uint8_t *reformatted_data = NULL;
3455 
3456  if (trk->entry) {
3457  int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3458  if (duration < 0 || duration > INT_MAX) {
3459  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3460  duration, pkt->dts
3461  );
3462 
3463  pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3464  pkt->pts = AV_NOPTS_VALUE;
3465  }
3466  if (pkt->duration < 0) {
3467  av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3468  return AVERROR(EINVAL);
3469  }
3470  }
3471  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3472  int ret;
3473  if (mov->fragments > 0) {
3474  if (!trk->mdat_buf) {
3475  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3476  return ret;
3477  }
3478  pb = trk->mdat_buf;
3479  } else {
3480  if (!mov->mdat_buf) {
3481  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3482  return ret;
3483  }
3484  pb = mov->mdat_buf;
3485  }
3486  }
3487 
3488  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3489  /* We must find out how many AMR blocks there are in one packet */
3490  static uint16_t packed_size[16] =
3491  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3492  int len = 0;
3493 
3494  while (len < size && samples_in_chunk < 100) {
3495  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3496  samples_in_chunk++;
3497  }
3498  if (samples_in_chunk > 1) {
3499  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3500  return -1;
3501  }
3502  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3504  samples_in_chunk = enc->frame_size;
3505  } else if (trk->sample_size)
3506  samples_in_chunk = size / trk->sample_size;
3507  else
3508  samples_in_chunk = 1;
3509 
3510  /* copy extradata if it exists */
3511  if (trk->vos_len == 0 && enc->extradata_size > 0) {
3512  trk->vos_len = enc->extradata_size;
3513  trk->vos_data = av_malloc(trk->vos_len);
3514  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3515  }
3516 
3517  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3518  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3519  if (!s->streams[pkt->stream_index]->nb_frames) {
3520  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3521  "use the audio bitstream filter 'aac_adtstoasc' to fix it "
3522  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3523  return -1;
3524  }
3525  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3526  }
3527  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3528  /* from x264 or from bytestream h264 */
3529  /* nal reformating needed */
3530  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3531  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3532  &size);
3533  avio_write(pb, reformatted_data, size);
3534  } else {
3535  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3536  }
3537  } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3538  (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3539  /* extradata is Annex B, assume the bitstream is too and convert it */
3540  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3541  ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3542  avio_write(pb, reformatted_data, size);
3543  } else {
3544  size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3545  }
3546  } else {
3547  avio_write(pb, pkt->data, size);
3548  }
3549 
3550  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3551  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3552  /* copy frame to create needed atoms */
3553  trk->vos_len = size;
3554  trk->vos_data = av_malloc(size);
3555  if (!trk->vos_data)
3556  return AVERROR(ENOMEM);
3557  memcpy(trk->vos_data, pkt->data, size);
3558  }
3559 
3560  if (trk->entry >= trk->cluster_capacity) {
3561  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3562  if (av_reallocp_array(&trk->cluster, new_capacity,
3563  sizeof(*trk->cluster)))
3564  return AVERROR(ENOMEM);
3565  trk->cluster_capacity = new_capacity;
3566  }
3567 
3568  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3569  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3570  trk->cluster[trk->entry].chunkNum = 0;
3571  trk->cluster[trk->entry].size = size;
3572  trk->cluster[trk->entry].entries = samples_in_chunk;
3573  trk->cluster[trk->entry].dts = pkt->dts;
3574  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3575  /* First packet of a new fragment. We already wrote the duration
3576  * of the last packet of the previous fragment based on track_duration,
3577  * which might not exactly match our dts. Therefore adjust the dts
3578  * of this packet to be what the previous packets duration implies. */
3579  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3580  }
3581  if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3582  trk->cluster[trk->entry].dts = trk->start_dts = 0;
3583  }
3584  if (trk->start_dts == AV_NOPTS_VALUE)
3585  trk->start_dts = pkt->dts;
3586  trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3587  trk->last_sample_is_subtitle_end = 0;
3588 
3589  if (pkt->pts == AV_NOPTS_VALUE) {
3590  av_log(s, AV_LOG_WARNING, "pts has no value\n");
3591  pkt->pts = pkt->dts;
3592  }
3593  if (pkt->dts != pkt->pts)
3594  trk->flags |= MOV_TRACK_CTTS;
3595  trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3596  trk->cluster[trk->entry].flags = 0;
3597  if (enc->codec_id == AV_CODEC_ID_VC1) {
3598  mov_parse_vc1_frame(pkt, trk, mov->fragments);
3599  } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3600  if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3601  trk->entry > 0) { // force sync sample for the first key frame
3602  mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3603  if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3604  trk->flags |= MOV_TRACK_STPS;
3605  } else {
3606  trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3607  }
3608  if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3609  trk->has_keyframes++;
3610  }
3611  trk->entry++;
3612  trk->sample_count += samples_in_chunk;
3613  mov->mdat_size += size;
3614 
3615  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3616  ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3617  reformatted_data, size);
3618  av_free(reformatted_data);
3619  return 0;
3620 }
3621 
3623 {
3624  MOVMuxContext *mov = s->priv_data;
3625  MOVTrack *trk = &mov->tracks[pkt->stream_index];
3626  AVCodecContext *enc = trk->enc;
3627  int64_t frag_duration = 0;
3628  int size = pkt->size;
3629 
3630  if (!pkt->size)
3631  return 0; /* Discard 0 sized packets */
3632 
3633  if (trk->entry && pkt->stream_index < s->nb_streams)
3634  frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3635  s->streams[pkt->stream_index]->time_base,
3636  AV_TIME_BASE_Q);
3637  if ((mov->max_fragment_duration &&
3638  frag_duration >= mov->max_fragment_duration) ||
3639  (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3640  (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3641  enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3642  trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3643  if (frag_duration >= mov->min_fragment_duration)
3644  mov_flush_fragment(s);
3645  }
3646 
3647  return ff_mov_write_packet(s, pkt);
3648 }
3649 
3651  int stream_index,
3652  int64_t dts) {
3653  AVPacket end;
3654  uint8_t data[2] = {0};
3655  int ret;
3656 
3657  av_init_packet(&end);
3658  end.size = sizeof(data);
3659  end.data = data;
3660  end.pts = dts;
3661  end.dts = dts;
3662  end.duration = 0;
3663  end.stream_index = stream_index;
3664 
3665  ret = mov_write_single_packet(s, &end);
3666  av_free_packet(&end);
3667 
3668  return ret;
3669 }
3670 
3672 {
3673  if (!pkt) {
3674  mov_flush_fragment(s);
3675  return 1;
3676  } else {
3677  int i;
3678  MOVMuxContext *mov = s->priv_data;
3679 
3680  if (!pkt->size) return 0; /* Discard 0 sized packets */
3681 
3682  /*
3683  * Subtitles require special handling.
3684  *
3685  * 1) For full complaince, every track must have a sample at
3686  * dts == 0, which is rarely true for subtitles. So, as soon
3687  * as we see any packet with dts > 0, write an empty subtitle
3688  * at dts == 0 for any subtitle track with no samples in it.
3689  *
3690  * 2) For each subtitle track, check if the current packet's
3691  * dts is past the duration of the last subtitle sample. If
3692  * so, we now need to write an end sample for that subtitle.
3693  *
3694  * This must be done conditionally to allow for subtitles that
3695  * immediately replace each other, in which case an end sample
3696  * is not needed, and is, in fact, actively harmful.
3697  *
3698  * 3) See mov_write_trailer for how the final end sample is
3699  * handled.
3700  */
3701  for (i = 0; i < mov->nb_streams; i++) {
3702  MOVTrack *trk = &mov->tracks[i];
3703  int ret;
3704 
3705  if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3706  trk->track_duration < pkt->dts &&
3707  (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3709  if (ret < 0) return ret;
3710  trk->last_sample_is_subtitle_end = 1;
3711  }
3712  }
3713 
3714  return mov_write_single_packet(s, pkt);
3715  }
3716 }
3717 
3718 // QuickTime chapters involve an additional text track with the chapter names
3719 // as samples, and a tref pointing from the other tracks to the chapter one.
3720 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3721 {
3722  AVIOContext *pb;
3723 
3724  MOVMuxContext *mov = s->priv_data;
3725  MOVTrack *track = &mov->tracks[tracknum];
3726  AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3727  int i, len;
3728 
3729  track->mode = mov->mode;
3730  track->tag = MKTAG('t','e','x','t');
3731  track->timescale = MOV_TIMESCALE;
3732  track->enc = avcodec_alloc_context3(NULL);
3733  if (!track->enc)
3734  return AVERROR(ENOMEM);
3736 #if 0
3737  // These properties are required to make QT recognize the chapter track
3738  uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3739  if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3740  return AVERROR(ENOMEM);
3741  memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3742 #else
3743  if (avio_open_dyn_buf(&pb) >= 0) {
3744  int size;
3745  uint8_t *buf;
3746 
3747  /* Stub header (usually for Quicktime chapter track) */
3748  // TextSampleEntry
3749  avio_wb32(pb, 0x01); // displayFlags
3750  avio_w8(pb, 0x00); // horizontal justification
3751  avio_w8(pb, 0x00); // vertical justification
3752  avio_w8(pb, 0x00); // bgColourRed
3753  avio_w8(pb, 0x00); // bgColourGreen
3754  avio_w8(pb, 0x00); // bgColourBlue
3755  avio_w8(pb, 0x00); // bgColourAlpha
3756  // BoxRecord
3757  avio_wb16(pb, 0x00); // defTextBoxTop
3758  avio_wb16(pb, 0x00); // defTextBoxLeft
3759  avio_wb16(pb, 0x00); // defTextBoxBottom
3760  avio_wb16(pb, 0x00); // defTextBoxRight
3761  // StyleRecord
3762  avio_wb16(pb, 0x00); // startChar
3763  avio_wb16(pb, 0x00); // endChar
3764  avio_wb16(pb, 0x01); // fontID
3765  avio_w8(pb, 0x00); // fontStyleFlags
3766  avio_w8(pb, 0x00); // fontSize
3767  avio_w8(pb, 0x00); // fgColourRed
3768  avio_w8(pb, 0x00); // fgColourGreen
3769  avio_w8(pb, 0x00); // fgColourBlue
3770  avio_w8(pb, 0x00); // fgColourAlpha
3771  // FontTableBox
3772  avio_wb32(pb, 0x0D); // box size
3773  ffio_wfourcc(pb, "ftab"); // box atom name
3774  avio_wb16(pb, 0x01); // entry count
3775  // FontRecord
3776  avio_wb16(pb, 0x01); // font ID
3777  avio_w8(pb, 0x00); // font name length
3778 
3779  if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3780  track->enc->extradata = buf;
3781  track->enc->extradata_size = size;
3782  } else {
3783  av_freep(&buf);
3784  }
3785  }
3786 #endif
3787 
3788  for (i = 0; i < s->nb_chapters; i++) {
3789  AVChapter *c = s->chapters[i];
3790  AVDictionaryEntry *t;
3791 
3792  int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3793  pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3794  pkt.duration = end - pkt.dts;
3795 
3796  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3797  const char encd[12] = {
3798  0x00, 0x00, 0x00, 0x0C,
3799  'e', 'n', 'c', 'd',
3800  0x00, 0x00, 0x01, 0x00 };
3801  len = strlen(t->value);
3802  pkt.size = len + 2 + 12;
3803  pkt.data = av_malloc(pkt.size);
3804  if (!pkt.data)
3805  return AVERROR(ENOMEM);
3806  AV_WB16(pkt.data, len);
3807  memcpy(pkt.data + 2, t->value, len);
3808  memcpy(pkt.data + len + 2, encd, sizeof(encd));
3810  av_freep(&pkt.data);
3811  }
3812  }
3813 
3814  return 0;
3815 }
3816 
3817 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3818 {
3819  int ret;
3820  MOVMuxContext *mov = s->priv_data;
3821  MOVTrack *track = &mov->tracks[index];
3822  AVStream *src_st = s->streams[src_index];
3823  AVTimecode tc;
3824  AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3825  AVRational rate = find_fps(s, src_st);
3826 
3827  /* compute the frame number */
3828  ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3829  if (ret < 0)
3830  return ret;
3831 
3832  /* tmcd track based on video stream */
3833  track->mode = mov->mode;
3834  track->tag = MKTAG('t','m','c','d');
3835  track->src_track = src_index;
3836  track->timescale = mov->tracks[src_index].timescale;
3839 
3840  /* set st to src_st for metadata access*/
3841  track->st = src_st;
3842 
3843  /* encode context: tmcd data stream */
3844  track->enc = avcodec_alloc_context3(NULL);
3845  track->enc->codec_type = AVMEDIA_TYPE_DATA;
3846  track->enc->codec_tag = track->tag;
3847  track->enc->time_base = av_inv_q(rate);
3848 
3849  /* the tmcd track just contains one packet with the frame number */
3850  pkt.data = av_malloc(pkt.size);
3851  AV_WB32(pkt.data, tc.start);
3852  ret = ff_mov_write_packet(s, &pkt);
3853  av_free(pkt.data);
3854  return ret;
3855 }
3856 
3857 /*
3858  * st->disposition controls the "enabled" flag in the tkhd tag.
3859  * QuickTime will not play a track if it is not enabled. So make sure
3860  * that one track of each type (audio, video, subtitle) is enabled.
3861  *
3862  * Subtitles are special. For audio and video, setting "enabled" also
3863  * makes the track "default" (i.e. it is rendered when played). For
3864  * subtitles, an "enabled" subtitle is not rendered by default, but
3865  * if no subtitle is enabled, the subtitle menu in QuickTime will be
3866  * empty!
3867  */
3869 {
3870  MOVMuxContext *mov = s->priv_data;
3871  int i;
3872  int enabled[AVMEDIA_TYPE_NB];
3873  int first[AVMEDIA_TYPE_NB];
3874 
3875  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3876  enabled[i] = 0;
3877  first[i] = -1;
3878  }
3879 
3880  for (i = 0; i < s->nb_streams; i++) {
3881  AVStream *st = s->streams[i];
3882 
3883  if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3884  st->codec->codec_type >= AVMEDIA_TYPE_NB)
3885  continue;
3886 
3887  if (first[st->codec->codec_type] < 0)
3888  first[st->codec->codec_type] = i;
3889  if (st->disposition & AV_DISPOSITION_DEFAULT) {
3890  mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3891  enabled[st->codec->codec_type]++;
3892  }
3893  }
3894 
3895  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3896  switch (i) {
3897  case AVMEDIA_TYPE_VIDEO:
3898  case AVMEDIA_TYPE_AUDIO:
3899  case AVMEDIA_TYPE_SUBTITLE:
3900  if (enabled[i] > 1)
3901  mov->per_stream_grouping = 1;
3902  if (!enabled[i] && first[i] >= 0)
3903  mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3904  break;
3905  }
3906  }
3907 }
3908 
3910 {
3911  MOVMuxContext *mov = s->priv_data;
3912  int i;
3913 
3914  if (mov->chapter_track) {
3915  if (mov->tracks[mov->chapter_track].enc)
3916  av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3917  av_freep(&mov->tracks[mov->chapter_track].enc);
3918  }
3919 
3920  for (i = 0; i < mov->nb_streams; i++) {
3921  if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3922  ff_mov_close_hinting(&mov->tracks[i]);
3923  else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3924  av_freep(&mov->tracks[i].enc);
3925  av_freep(&mov->tracks[i].cluster);
3926  av_freep(&mov->tracks[i].frag_info);
3927 
3928  if (mov->tracks[i].vos_len)
3929  av_freep(&mov->tracks[i].vos_data);
3930  }
3931 
3932  av_freep(&mov->tracks);
3933 }
3934 
3935 static uint32_t rgb_to_yuv(uint32_t rgb)
3936 {
3937  uint8_t r, g, b;
3938  int y, cb, cr;
3939 
3940  r = (rgb >> 16) & 0xFF;
3941  g = (rgb >> 8) & 0xFF;
3942  b = (rgb ) & 0xFF;
3943 
3944  y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3945  cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3946  cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3947 
3948  return (y << 16) | (cr << 8) | cb;
3949 }
3950 
3952  AVStream *st)
3953 {
3954  int i, width = 720, height = 480;
3955  int have_palette = 0, have_size = 0;
3956  uint32_t palette[16];
3957  char *cur = st->codec->extradata;
3958 
3959  while (cur && *cur) {
3960  if (strncmp("palette:", cur, 8) == 0) {
3961  int i, count;
3962  count = sscanf(cur + 8,
3963  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3964  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3965  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3966  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3967  &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3968  &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3969  &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3970  &palette[12], &palette[13], &palette[14], &palette[15]);
3971 
3972  for (i = 0; i < count; i++) {
3973  palette[i] = rgb_to_yuv(palette[i]);
3974  }
3975  have_palette = 1;
3976  } else if (!strncmp("size:", cur, 5)) {
3977  sscanf(cur + 5, "%dx%d", &width, &height);
3978  have_size = 1;
3979  }
3980  if (have_palette && have_size)
3981  break;
3982  cur += strcspn(cur, "\n\r");
3983  cur += strspn(cur, "\n\r");
3984  }
3985  if (have_palette) {
3986  track->vos_data = av_malloc(16*4);
3987  if (!track->vos_data)
3988  return AVERROR(ENOMEM);
3989  for (i = 0; i < 16; i++) {
3990  AV_WB32(track->vos_data + i * 4, palette[i]);
3991  }
3992  track->vos_len = 16 * 4;
3993  }
3994  st->codec->width = width;
3995  st->codec->height = track->height = height;
3996 
3997  return 0;
3998 }
3999 
4001 {
4002  AVIOContext *pb = s->pb;
4003  MOVMuxContext *mov = s->priv_data;
4004  AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4005  int i, ret, hint_track = 0, tmcd_track = 0;
4006 
4007  mov->fc = s;
4008 
4009  /* Default mode == MP4 */
4010  mov->mode = MODE_MP4;
4011 
4012  if (s->oformat) {
4013  if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4014  else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4015  else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4016  else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4017  else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4018  else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4019  else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4020  }
4021 
4022  if (s->flags & AVFMT_FLAG_BITEXACT)
4023  mov->exact = 1;
4024 
4025  /* Set the FRAGMENT flag if any of the fragmentation methods are
4026  * enabled. */
4027  if (mov->max_fragment_duration || mov->max_fragment_size ||
4028  mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4031  mov->flags |= FF_MOV_FLAG_FRAGMENT;
4032 
4033  /* Set other implicit flags immediately */
4034  if (mov->mode == MODE_ISM)
4037 
4038  /* faststart: moov at the beginning of the file, if supported */
4039  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4040  if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
4041  (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
4042  av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
4043  "with fragmentation and custom IO, disabling faststart\n");
4044  mov->flags &= ~FF_MOV_FLAG_FASTSTART;
4045  } else
4046  mov->reserved_moov_size = -1;
4047  }
4048 
4049  if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
4050  s->avoid_negative_ts = 2;
4051  }
4052 
4053  /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4054  * is enabled, we don't support non-seekable output at all. */
4055  if (!s->pb->seekable &&
4056  (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4057  av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4058  return AVERROR(EINVAL);
4059  }
4060 
4061  mov_write_ftyp_tag(pb,s);
4062  if (mov->mode == MODE_PSP) {
4063  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4064  for (i = 0; i < s->nb_streams; i++) {
4065  AVStream *st = s->streams[i];
4066  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4067  video_streams_nb++;
4068  else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4069  audio_streams_nb++;
4070  else
4071  other_streams_nb++;
4072  }
4073 
4074  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4075  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4076  return AVERROR(EINVAL);
4077  }
4078  mov_write_uuidprof_tag(pb, s);
4079  }
4080 
4081  mov->nb_streams = s->nb_streams;
4082  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4083  mov->chapter_track = mov->nb_streams++;
4084 
4085  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4086  /* Add hint tracks for each audio and video stream */
4087  hint_track = mov->nb_streams;
4088  for (i = 0; i < s->nb_streams; i++) {
4089  AVStream *st = s->streams[i];
4090  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4092  mov->nb_streams++;
4093  }
4094  }
4095  }
4096 
4097  if (mov->mode == MODE_MOV) {
4098  tmcd_track = mov->nb_streams;
4099 
4100  /* +1 tmcd track for each video stream with a timecode */
4101  for (i = 0; i < s->nb_streams; i++) {
4102  AVStream *st = s->streams[i];
4103  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4104  (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4105  mov->nb_meta_tmcd++;
4106  }
4107 
4108  /* check if there is already a tmcd track to remux */
4109  if (mov->nb_meta_tmcd) {
4110  for (i = 0; i < s->nb_streams; i++) {
4111  AVStream *st = s->streams[i];
4112  if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4113  av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4114  "so timecode metadata are now ignored\n");
4115  mov->nb_meta_tmcd = 0;
4116  }
4117  }
4118  }
4119 
4120  mov->nb_streams += mov->nb_meta_tmcd;
4121  }
4122 
4123  // Reserve an extra stream for chapters for the case where chapters
4124  // are written in the trailer
4125  mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4126  if (!mov->tracks)
4127  return AVERROR(ENOMEM);
4128 
4129  for (i = 0; i < s->nb_streams; i++) {
4130  AVStream *st= s->streams[i];
4131  MOVTrack *track= &mov->tracks[i];
4132  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4133 
4134  track->st = st;
4135  track->enc = st->codec;
4136  track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4137  if (track->language < 0)
4138  track->language = 0;
4139  track->mode = mov->mode;
4140  track->tag = mov_find_codec_tag(s, track);
4141  if (!track->tag) {
4142  av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4143  "codec not currently supported in container\n",
4144  avcodec_get_name(st->codec->codec_id), i);
4145  ret = AVERROR(EINVAL);
4146  goto error;
4147  }
4148  /* If hinting of this track is enabled by a later hint track,
4149  * this is updated. */
4150  track->hint_track = -1;
4151  track->start_dts = AV_NOPTS_VALUE;
4152  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4153  if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4154  track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4155  track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4156  if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4157  av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4158  ret = AVERROR(EINVAL);
4159  goto error;
4160  }
4161  track->height = track->tag >> 24 == 'n' ? 486 : 576;
4162  }
4163  if (mov->video_track_timescale) {
4164  track->timescale = mov->video_track_timescale;
4165  } else {
4166  track->timescale = st->time_base.den;
4167  while(track->timescale < 10000)
4168  track->timescale *= 2;
4169  }
4170  if (st->codec->width > 65535 || st->codec->height > 65535) {
4171  av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4172  ret = AVERROR(EINVAL);
4173  goto error;
4174  }
4175  if (track->mode == MODE_MOV && track->timescale > 100000)
4177  "WARNING codec timebase is very high. If duration is too long,\n"
4178  "file may not be playable by quicktime. Specify a shorter timebase\n"
4179  "or choose different container.\n");
4180  } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4181  track->timescale = st->codec->sample_rate;
4182  if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4183  av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4184  track->audio_vbr = 1;
4185  }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4187  st->codec->codec_id == AV_CODEC_ID_ILBC){
4188  if (!st->codec->block_align) {
4189  av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4190  ret = AVERROR(EINVAL);
4191  goto error;
4192  }
4193  track->sample_size = st->codec->block_align;
4194  }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4195  track->audio_vbr = 1;
4196  }else{
4197  track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4198  }
4199  if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4201  track->audio_vbr = 1;
4202  }
4203  if (track->mode != MODE_MOV &&
4204  track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4205  av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4206  i, track->enc->sample_rate);
4207  ret = AVERROR(EINVAL);
4208  goto error;
4209  }
4210  } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4211  track->timescale = st->time_base.den;
4212  } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4213  track->timescale = st->time_base.den;
4214  } else {
4215  track->timescale = MOV_TIMESCALE;
4216  }
4217  if (!track->height)
4218  track->