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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.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 "hevc.h"
46 #include "rtpenc.h"
47 #include "mov_chan.h"
48 
49 #undef NDEBUG
50 #include <assert.h>
51 
52 static const AVOption options[] = {
53  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54  { "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" },
55  { "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 },
56  { "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" },
57  { "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" },
58  { "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" },
59  { "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" },
60  { "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" },
61  { "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" },
62  { "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" },
63  { "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" },
64  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
65  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
66  { "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},
67  { "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},
68  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
69  { "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},
70  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
71  { "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},
72  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
73  { "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},
74  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
75  { NULL },
76 };
77 
78 #define MOV_CLASS(flavor)\
79 static const AVClass flavor ## _muxer_class = {\
80  .class_name = #flavor " muxer",\
81  .item_name = av_default_item_name,\
82  .option = options,\
83  .version = LIBAVUTIL_VERSION_INT,\
84 };
85 
86 static int get_moov_size(AVFormatContext *s);
87 
88 static int utf8len(const uint8_t *b)
89 {
90  int len = 0;
91  int val;
92  while (*b) {
93  GET_UTF8(val, *b++, return -1;)
94  len++;
95  }
96  return len;
97 }
98 
99 //FIXME support 64 bit variant with wide placeholders
100 static int64_t update_size(AVIOContext *pb, int64_t pos)
101 {
102  int64_t curpos = avio_tell(pb);
103  avio_seek(pb, pos, SEEK_SET);
104  avio_wb32(pb, curpos - pos); /* rewrite size */
105  avio_seek(pb, curpos, SEEK_SET);
106 
107  return curpos - pos;
108 }
109 
110 static int supports_edts(MOVMuxContext *mov)
111 {
112  // EDTS with fragments is tricky as we don't know the duration when its written
113  return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
114 }
115 
116 static int co64_required(const MOVTrack *track)
117 {
118  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
119  return 1;
120  return 0;
121 }
122 
123 /* Chunk offset atom */
124 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
125 {
126  int i;
127  int mode64 = co64_required(track); // use 32 bit size variant if possible
128  int64_t pos = avio_tell(pb);
129  avio_wb32(pb, 0); /* size */
130  if (mode64)
131  ffio_wfourcc(pb, "co64");
132  else
133  ffio_wfourcc(pb, "stco");
134  avio_wb32(pb, 0); /* version & flags */
135  avio_wb32(pb, track->chunkCount); /* entry count */
136  for (i = 0; i < track->entry; i++) {
137  if (!track->cluster[i].chunkNum)
138  continue;
139  if (mode64 == 1)
140  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
141  else
142  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
143  }
144  return update_size(pb, pos);
145 }
146 
147 /* Sample size atom */
148 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
149 {
150  int equalChunks = 1;
151  int i, j, entries = 0, tst = -1, oldtst = -1;
152 
153  int64_t pos = avio_tell(pb);
154  avio_wb32(pb, 0); /* size */
155  ffio_wfourcc(pb, "stsz");
156  avio_wb32(pb, 0); /* version & flags */
157 
158  for (i = 0; i < track->entry; i++) {
159  tst = track->cluster[i].size / track->cluster[i].entries;
160  if (oldtst != -1 && tst != oldtst)
161  equalChunks = 0;
162  oldtst = tst;
163  entries += track->cluster[i].entries;
164  }
165  if (equalChunks && track->entry) {
166  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
167  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
168  avio_wb32(pb, sSize); // sample size
169  avio_wb32(pb, entries); // sample count
170  } else {
171  avio_wb32(pb, 0); // sample size
172  avio_wb32(pb, entries); // sample count
173  for (i = 0; i < track->entry; i++) {
174  for (j = 0; j < track->cluster[i].entries; j++) {
175  avio_wb32(pb, track->cluster[i].size /
176  track->cluster[i].entries);
177  }
178  }
179  }
180  return update_size(pb, pos);
181 }
182 
183 /* Sample to chunk atom */
184 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
185 {
186  int index = 0, oldval = -1, i;
187  int64_t entryPos, curpos;
188 
189  int64_t pos = avio_tell(pb);
190  avio_wb32(pb, 0); /* size */
191  ffio_wfourcc(pb, "stsc");
192  avio_wb32(pb, 0); // version & flags
193  entryPos = avio_tell(pb);
194  avio_wb32(pb, track->chunkCount); // entry count
195  for (i = 0; i < track->entry; i++) {
196  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
197  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
198  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
199  avio_wb32(pb, 0x1); // sample description index
200  oldval = track->cluster[i].samples_in_chunk;
201  index++;
202  }
203  }
204  curpos = avio_tell(pb);
205  avio_seek(pb, entryPos, SEEK_SET);
206  avio_wb32(pb, index); // rewrite size
207  avio_seek(pb, curpos, SEEK_SET);
208 
209  return update_size(pb, pos);
210 }
211 
212 /* Sync sample atom */
213 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
214 {
215  int64_t curpos, entryPos;
216  int i, index = 0;
217  int64_t pos = avio_tell(pb);
218  avio_wb32(pb, 0); // size
219  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
220  avio_wb32(pb, 0); // version & flags
221  entryPos = avio_tell(pb);
222  avio_wb32(pb, track->entry); // entry count
223  for (i = 0; i < track->entry; i++) {
224  if (track->cluster[i].flags & flag) {
225  avio_wb32(pb, i + 1);
226  index++;
227  }
228  }
229  curpos = avio_tell(pb);
230  avio_seek(pb, entryPos, SEEK_SET);
231  avio_wb32(pb, index); // rewrite size
232  avio_seek(pb, curpos, SEEK_SET);
233  return update_size(pb, pos);
234 }
235 
236 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
237 {
238  avio_wb32(pb, 0x11); /* size */
239  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
240  else ffio_wfourcc(pb, "damr");
241  ffio_wfourcc(pb, "FFMP");
242  avio_w8(pb, 0); /* decoder version */
243 
244  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
245  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
246  avio_w8(pb, 0x01); /* Frames per sample */
247  return 0x11;
248 }
249 
250 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
251 {
252  GetBitContext gbc;
253  PutBitContext pbc;
254  uint8_t buf[3];
255  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
256 
257  if (track->vos_len < 7)
258  return -1;
259 
260  avio_wb32(pb, 11);
261  ffio_wfourcc(pb, "dac3");
262 
263  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
264  fscod = get_bits(&gbc, 2);
265  frmsizecod = get_bits(&gbc, 6);
266  bsid = get_bits(&gbc, 5);
267  bsmod = get_bits(&gbc, 3);
268  acmod = get_bits(&gbc, 3);
269  if (acmod == 2) {
270  skip_bits(&gbc, 2); // dsurmod
271  } else {
272  if ((acmod & 1) && acmod != 1)
273  skip_bits(&gbc, 2); // cmixlev
274  if (acmod & 4)
275  skip_bits(&gbc, 2); // surmixlev
276  }
277  lfeon = get_bits1(&gbc);
278 
279  init_put_bits(&pbc, buf, sizeof(buf));
280  put_bits(&pbc, 2, fscod);
281  put_bits(&pbc, 5, bsid);
282  put_bits(&pbc, 3, bsmod);
283  put_bits(&pbc, 3, acmod);
284  put_bits(&pbc, 1, lfeon);
285  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
286  put_bits(&pbc, 5, 0); // reserved
287 
288  flush_put_bits(&pbc);
289  avio_write(pb, buf, sizeof(buf));
290 
291  return 11;
292 }
293 
294 /**
295  * This function writes extradata "as is".
296  * Extradata must be formatted like a valid atom (with size and tag).
297  */
299 {
300  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
301  return track->enc->extradata_size;
302 }
303 
305 {
306  avio_wb32(pb, 10);
307  ffio_wfourcc(pb, "enda");
308  avio_wb16(pb, 1); /* little endian */
309  return 10;
310 }
311 
313 {
314  avio_wb32(pb, 10);
315  ffio_wfourcc(pb, "enda");
316  avio_wb16(pb, 0); /* big endian */
317  return 10;
318 }
319 
320 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
321 {
322  int i = 3;
323  avio_w8(pb, tag);
324  for (; i > 0; i--)
325  avio_w8(pb, (size >> (7 * i)) | 0x80);
326  avio_w8(pb, size & 0x7F);
327 }
328 
329 static unsigned compute_avg_bitrate(MOVTrack *track)
330 {
331  uint64_t size = 0;
332  int i;
333  if (!track->track_duration)
334  return 0;
335  for (i = 0; i < track->entry; i++)
336  size += track->cluster[i].size;
337  return size * 8 * track->timescale / track->track_duration;
338 }
339 
340 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
341 {
342  int64_t pos = avio_tell(pb);
343  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
344  unsigned avg_bitrate;
345 
346  avio_wb32(pb, 0); // size
347  ffio_wfourcc(pb, "esds");
348  avio_wb32(pb, 0); // Version
349 
350  // ES descriptor
351  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
352  avio_wb16(pb, track->track_id);
353  avio_w8(pb, 0x00); // flags (= no flags)
354 
355  // DecoderConfig descriptor
356  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
357 
358  // Object type indication
359  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
360  track->enc->codec_id == AV_CODEC_ID_MP3) &&
361  track->enc->sample_rate > 24000)
362  avio_w8(pb, 0x6B); // 11172-3
363  else
365 
366  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
367  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
368  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
369  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
370  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
371  avio_w8(pb, 0x15); // flags (= Audiostream)
372  else
373  avio_w8(pb, 0x11); // flags (= Visualstream)
374 
375  avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
376 
377  avg_bitrate = compute_avg_bitrate(track);
378  // maxbitrate (FIXME should be max rate in any 1 sec window)
379  avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
380  avio_wb32(pb, avg_bitrate);
381 
382  if (track->vos_len) {
383  // DecoderSpecific info descriptor
384  put_descr(pb, 0x05, track->vos_len);
385  avio_write(pb, track->vos_data, track->vos_len);
386  }
387 
388  // SL descriptor
389  put_descr(pb, 0x06, 1);
390  avio_w8(pb, 0x02);
391  return update_size(pb, pos);
392 }
393 
395 {
396  return codec_id == AV_CODEC_ID_PCM_S24LE ||
397  codec_id == AV_CODEC_ID_PCM_S32LE ||
398  codec_id == AV_CODEC_ID_PCM_F32LE ||
399  codec_id == AV_CODEC_ID_PCM_F64LE;
400 }
401 
403 {
404  return codec_id == AV_CODEC_ID_PCM_S24BE ||
405  codec_id == AV_CODEC_ID_PCM_S32BE ||
406  codec_id == AV_CODEC_ID_PCM_F32BE ||
407  codec_id == AV_CODEC_ID_PCM_F64BE;
408 }
409 
410 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
411 {
412  int ret;
413  int64_t pos = avio_tell(pb);
414  avio_wb32(pb, 0);
415  avio_wl32(pb, track->tag); // store it byteswapped
416  track->enc->codec_tag = av_bswap16(track->tag >> 16);
417  if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
418  return ret;
419  return update_size(pb, pos);
420 }
421 
422 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
423 {
424  int ret;
425  int64_t pos = avio_tell(pb);
426  avio_wb32(pb, 0);
427  ffio_wfourcc(pb, "wfex");
428  if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
429  return ret;
430  return update_size(pb, pos);
431 }
432 
433 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
434 {
435  uint32_t layout_tag, bitmap;
436  int64_t pos = avio_tell(pb);
437 
438  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
439  track->enc->channel_layout,
440  &bitmap);
441  if (!layout_tag) {
442  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
443  "lack of channel information\n");
444  return 0;
445  }
446 
447  if (track->multichannel_as_mono)
448  return 0;
449 
450  avio_wb32(pb, 0); // Size
451  ffio_wfourcc(pb, "chan"); // Type
452  avio_w8(pb, 0); // Version
453  avio_wb24(pb, 0); // Flags
454  avio_wb32(pb, layout_tag); // mChannelLayoutTag
455  avio_wb32(pb, bitmap); // mChannelBitmap
456  avio_wb32(pb, 0); // mNumberChannelDescriptions
457 
458  return update_size(pb, pos);
459 }
460 
461 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
462 {
463  int64_t pos = avio_tell(pb);
464 
465  avio_wb32(pb, 0); /* size */
466  ffio_wfourcc(pb, "wave");
467 
468  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
469  avio_wb32(pb, 12); /* size */
470  ffio_wfourcc(pb, "frma");
471  avio_wl32(pb, track->tag);
472  }
473 
474  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
475  /* useless atom needed by mplayer, ipod, not needed by quicktime */
476  avio_wb32(pb, 12); /* size */
477  ffio_wfourcc(pb, "mp4a");
478  avio_wb32(pb, 0);
479  mov_write_esds_tag(pb, track);
480  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
481  mov_write_enda_tag(pb);
482  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
484  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
485  mov_write_amr_tag(pb, track);
486  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
487  mov_write_ac3_tag(pb, track);
488  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
489  track->enc->codec_id == AV_CODEC_ID_QDM2) {
490  mov_write_extradata_tag(pb, track);
491  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
493  mov_write_ms_tag(pb, track);
494  }
495 
496  avio_wb32(pb, 8); /* size */
497  avio_wb32(pb, 0); /* null tag */
498 
499  return update_size(pb, pos);
500 }
501 
503 {
504  uint8_t *unescaped;
505  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
506  int unescaped_size, seq_found = 0;
507  int level = 0, interlace = 0;
508  int packet_seq = track->vc1_info.packet_seq;
509  int packet_entry = track->vc1_info.packet_entry;
510  int slices = track->vc1_info.slices;
511  PutBitContext pbc;
512 
513  if (track->start_dts == AV_NOPTS_VALUE) {
514  /* No packets written yet, vc1_info isn't authoritative yet. */
515  /* Assume inline sequence and entry headers. This will be
516  * overwritten at the end if the file is seekable. */
517  packet_seq = packet_entry = 1;
518  }
519 
520  unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
521  if (!unescaped)
522  return AVERROR(ENOMEM);
523  start = find_next_marker(track->vos_data, end);
524  for (next = start; next < end; start = next) {
525  GetBitContext gb;
526  int size;
527  next = find_next_marker(start + 4, end);
528  size = next - start - 4;
529  if (size <= 0)
530  continue;
531  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
532  init_get_bits(&gb, unescaped, 8 * unescaped_size);
533  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
534  int profile = get_bits(&gb, 2);
535  if (profile != PROFILE_ADVANCED) {
536  av_free(unescaped);
537  return AVERROR(ENOSYS);
538  }
539  seq_found = 1;
540  level = get_bits(&gb, 3);
541  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
542  * width, height */
543  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
544  skip_bits(&gb, 1); /* broadcast */
545  interlace = get_bits1(&gb);
546  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
547  }
548  }
549  if (!seq_found) {
550  av_free(unescaped);
551  return AVERROR(ENOSYS);
552  }
553 
554  init_put_bits(&pbc, buf, 7);
555  /* VC1DecSpecStruc */
556  put_bits(&pbc, 4, 12); /* profile - advanced */
557  put_bits(&pbc, 3, level);
558  put_bits(&pbc, 1, 0); /* reserved */
559  /* VC1AdvDecSpecStruc */
560  put_bits(&pbc, 3, level);
561  put_bits(&pbc, 1, 0); /* cbr */
562  put_bits(&pbc, 6, 0); /* reserved */
563  put_bits(&pbc, 1, !interlace); /* no interlace */
564  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
565  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
566  put_bits(&pbc, 1, !slices); /* no slice code */
567  put_bits(&pbc, 1, 0); /* no bframe */
568  put_bits(&pbc, 1, 0); /* reserved */
569 
570  /* framerate */
571  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
572  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
573  else
574  put_bits32(&pbc, 0xffffffff);
575 
576  flush_put_bits(&pbc);
577 
578  av_free(unescaped);
579 
580  return 0;
581 }
582 
583 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
584 {
585  uint8_t buf[7] = { 0 };
586  int ret;
587 
588  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
589  return ret;
590 
591  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
592  ffio_wfourcc(pb, "dvc1");
593  track->vc1_info.struct_offset = avio_tell(pb);
594  avio_write(pb, buf, sizeof(buf));
595  avio_write(pb, track->vos_data, track->vos_len);
596 
597  return 0;
598 }
599 
600 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
601 {
602  avio_wb32(pb, track->vos_len + 8);
603  ffio_wfourcc(pb, "glbl");
604  avio_write(pb, track->vos_data, track->vos_len);
605  return 8 + track->vos_len;
606 }
607 
608 /**
609  * Compute flags for 'lpcm' tag.
610  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
611  */
613 {
614  switch (codec_id) {
617  return 11;
620  return 9;
621  case AV_CODEC_ID_PCM_U8:
622  return 10;
626  return 14;
627  case AV_CODEC_ID_PCM_S8:
631  return 12;
632  default:
633  return 0;
634  }
635 }
636 
637 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
638 {
639  int64_t next_dts;
640 
641  if (cluster_idx >= track->entry)
642  return 0;
643 
644  if (cluster_idx + 1 == track->entry)
645  next_dts = track->track_duration + track->start_dts;
646  else
647  next_dts = track->cluster[cluster_idx + 1].dts;
648 
649  next_dts -= track->cluster[cluster_idx].dts;
650 
651  av_assert0(next_dts >= 0);
652  av_assert0(next_dts <= INT_MAX);
653 
654  return next_dts;
655 }
656 
658 {
659  int i, first_duration;
660 
661 // return track->enc->frame_size;
662 
663  /* use 1 for raw PCM */
664  if (!track->audio_vbr)
665  return 1;
666 
667  /* check to see if duration is constant for all clusters */
668  if (!track->entry)
669  return 0;
670  first_duration = get_cluster_duration(track, 0);
671  for (i = 1; i < track->entry; i++) {
672  if (get_cluster_duration(track, i) != first_duration)
673  return 0;
674  }
675  return first_duration;
676 }
677 
678 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
679 {
680  int64_t pos = avio_tell(pb);
681  int version = 0;
682  uint32_t tag = track->tag;
683 
684  if (track->mode == MODE_MOV) {
685  if (track->timescale > UINT16_MAX) {
686  if (mov_get_lpcm_flags(track->enc->codec_id))
687  tag = AV_RL32("lpcm");
688  version = 2;
689  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
690  mov_pcm_be_gt16(track->enc->codec_id) ||
691  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
693  track->enc->codec_id == AV_CODEC_ID_QDM2) {
694  version = 1;
695  }
696  }
697 
698  avio_wb32(pb, 0); /* size */
699  avio_wl32(pb, tag); // store it byteswapped
700  avio_wb32(pb, 0); /* Reserved */
701  avio_wb16(pb, 0); /* Reserved */
702  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
703 
704  /* SoundDescription */
705  avio_wb16(pb, version); /* Version */
706  avio_wb16(pb, 0); /* Revision level */
707  avio_wb32(pb, 0); /* Reserved */
708 
709  if (version == 2) {
710  avio_wb16(pb, 3);
711  avio_wb16(pb, 16);
712  avio_wb16(pb, 0xfffe);
713  avio_wb16(pb, 0);
714  avio_wb32(pb, 0x00010000);
715  avio_wb32(pb, 72);
716  avio_wb64(pb, av_double2int(track->enc->sample_rate));
717  avio_wb32(pb, track->enc->channels);
718  avio_wb32(pb, 0x7F000000);
721  avio_wb32(pb, track->sample_size);
722  avio_wb32(pb, get_samples_per_packet(track));
723  } else {
724  if (track->mode == MODE_MOV) {
725  avio_wb16(pb, track->enc->channels);
726  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
727  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
728  avio_wb16(pb, 8); /* bits per sample */
729  else
730  avio_wb16(pb, 16);
731  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
732  } else { /* reserved for mp4/3gp */
733  avio_wb16(pb, 2);
734  avio_wb16(pb, 16);
735  avio_wb16(pb, 0);
736  }
737 
738  avio_wb16(pb, 0); /* packet size (= 0) */
739  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
740  track->enc->sample_rate : 0);
741  avio_wb16(pb, 0); /* Reserved */
742  }
743 
744  if (version == 1) { /* SoundDescription V1 extended info */
745  if (mov_pcm_le_gt16(track->enc->codec_id) ||
746  mov_pcm_be_gt16(track->enc->codec_id))
747  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
748  else
749  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
750  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
751  avio_wb32(pb, track->sample_size); /* Bytes per frame */
752  avio_wb32(pb, 2); /* Bytes per sample */
753  }
754 
755  if (track->mode == MODE_MOV &&
756  (track->enc->codec_id == AV_CODEC_ID_AAC ||
757  track->enc->codec_id == AV_CODEC_ID_AC3 ||
758  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
759  track->enc->codec_id == AV_CODEC_ID_ALAC ||
760  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
762  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
763  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
764  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
765  mov_write_wave_tag(pb, track);
766  else if (track->tag == MKTAG('m','p','4','a'))
767  mov_write_esds_tag(pb, track);
768  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
769  mov_write_amr_tag(pb, track);
770  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
771  mov_write_ac3_tag(pb, track);
772  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
773  mov_write_extradata_tag(pb, track);
774  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
775  mov_write_wfex_tag(pb, track);
776  else if (track->vos_len > 0)
777  mov_write_glbl_tag(pb, track);
778 
779  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
780  mov_write_chan_tag(pb, track);
781 
782  return update_size(pb, pos);
783 }
784 
786 {
787  avio_wb32(pb, 0xf); /* size */
788  ffio_wfourcc(pb, "d263");
789  ffio_wfourcc(pb, "FFMP");
790  avio_w8(pb, 0); /* decoder version */
791  /* FIXME use AVCodecContext level/profile, when encoder will set values */
792  avio_w8(pb, 0xa); /* level */
793  avio_w8(pb, 0); /* profile */
794  return 0xf;
795 }
796 
797 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
798 {
799  int64_t pos = avio_tell(pb);
800 
801  avio_wb32(pb, 0);
802  ffio_wfourcc(pb, "avcC");
803  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
804  return update_size(pb, pos);
805 }
806 
807 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
808 {
809  int64_t pos = avio_tell(pb);
810 
811  avio_wb32(pb, 0);
812  ffio_wfourcc(pb, "hvcC");
813  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
814  return update_size(pb, pos);
815 }
816 
817 /* also used by all avid codecs (dv, imx, meridien) and their variants */
818 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
819 {
820  int i;
821  avio_wb32(pb, 24); /* size */
822  ffio_wfourcc(pb, "ACLR");
823  ffio_wfourcc(pb, "ACLR");
824  ffio_wfourcc(pb, "0001");
825  if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
826  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
827  } else { /* Full range (0-255) */
828  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
829  }
830  avio_wb32(pb, 0); /* unknown */
831 
832  avio_wb32(pb, 24); /* size */
833  ffio_wfourcc(pb, "APRG");
834  ffio_wfourcc(pb, "APRG");
835  ffio_wfourcc(pb, "0001");
836  avio_wb32(pb, 1); /* unknown */
837  avio_wb32(pb, 0); /* unknown */
838 
839  avio_wb32(pb, 120); /* size */
840  ffio_wfourcc(pb, "ARES");
841  ffio_wfourcc(pb, "ARES");
842  ffio_wfourcc(pb, "0001");
843  avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
844  avio_wb32(pb, track->enc->width);
845  /* values below are based on samples created with quicktime and avid codecs */
846  if (track->vos_data[5] & 2) { // interlaced
847  avio_wb32(pb, track->enc->height / 2);
848  avio_wb32(pb, 2); /* unknown */
849  avio_wb32(pb, 0); /* unknown */
850  avio_wb32(pb, 4); /* unknown */
851  } else {
852  avio_wb32(pb, track->enc->height);
853  avio_wb32(pb, 1); /* unknown */
854  avio_wb32(pb, 0); /* unknown */
855  if (track->enc->height == 1080)
856  avio_wb32(pb, 5); /* unknown */
857  else
858  avio_wb32(pb, 6); /* unknown */
859  }
860  /* padding */
861  for (i = 0; i < 10; i++)
862  avio_wb64(pb, 0);
863 
864  /* extra padding for stsd needed */
865  avio_wb32(pb, 0);
866  return 0;
867 }
868 
870 {
871  int tag = track->enc->codec_tag;
872 
874  return 0;
875 
876  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
877  else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
878  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
879  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
880  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
881  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
882  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
883  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
884  else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
885 
886  return tag;
887 }
888 
889 static const AVCodecTag codec_ipod_tags[] = {
890  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
891  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
892  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
893  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
894  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
895  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
896  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
897  { AV_CODEC_ID_NONE, 0 },
898 };
899 
901 {
902  int tag = track->enc->codec_tag;
903 
904  // keep original tag for subs, ipod supports both formats
905  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
906  (tag == MKTAG('t', 'x', '3', 'g') ||
907  tag == MKTAG('t', 'e', 'x', 't'))))
908  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
909 
910  if (!av_match_ext(s->filename, "m4a") &&
911  !av_match_ext(s->filename, "m4b") &&
912  !av_match_ext(s->filename, "m4v"))
913  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
914  "Quicktime/Ipod might not play the file\n");
915 
916  return tag;
917 }
918 
920 {
921  int tag;
922 
923  if (track->enc->width == 720) { /* SD */
924  if (track->enc->height == 480) { /* NTSC */
925  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
926  else tag = MKTAG('d','v','c',' ');
927  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
928  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
929  else tag = MKTAG('d','v','p','p');
930  } else if (track->enc->height == 720) { /* HD 720 line */
931  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
932  else tag = MKTAG('d','v','h','p');
933  } else if (track->enc->height == 1080) { /* HD 1080 line */
934  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
935  else tag = MKTAG('d','v','h','6');
936  } else {
937  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
938  return 0;
939  }
940 
941  return tag;
942 }
943 
945 {
946  AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
947  /* if the codec time base makes no sense, try to fallback on stream frame rate */
948  if (av_timecode_check_frame_rate(rate) < 0) {
949  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
950  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
951  rate = st->avg_frame_rate;
952  }
953 
954  return rate;
955 }
956 
958 {
959  int tag = track->enc->codec_tag;
960  int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
961  AVStream *st = track->st;
962  int rate = av_q2d(find_fps(s, st));
963 
964  if (!tag)
965  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
966 
967  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
968  if (track->enc->width == 1280 && track->enc->height == 720) {
969  if (!interlaced) {
970  if (rate == 24) tag = MKTAG('x','d','v','4');
971  else if (rate == 25) tag = MKTAG('x','d','v','5');
972  else if (rate == 30) tag = MKTAG('x','d','v','1');
973  else if (rate == 50) tag = MKTAG('x','d','v','a');
974  else if (rate == 60) tag = MKTAG('x','d','v','9');
975  }
976  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
977  if (!interlaced) {
978  if (rate == 24) tag = MKTAG('x','d','v','6');
979  else if (rate == 25) tag = MKTAG('x','d','v','7');
980  else if (rate == 30) tag = MKTAG('x','d','v','8');
981  } else {
982  if (rate == 25) tag = MKTAG('x','d','v','3');
983  else if (rate == 30) tag = MKTAG('x','d','v','2');
984  }
985  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
986  if (!interlaced) {
987  if (rate == 24) tag = MKTAG('x','d','v','d');
988  else if (rate == 25) tag = MKTAG('x','d','v','e');
989  else if (rate == 30) tag = MKTAG('x','d','v','f');
990  } else {
991  if (rate == 25) tag = MKTAG('x','d','v','c');
992  else if (rate == 30) tag = MKTAG('x','d','v','b');
993  }
994  }
995  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
996  if (track->enc->width == 1280 && track->enc->height == 720) {
997  if (!interlaced) {
998  if (rate == 24) tag = MKTAG('x','d','5','4');
999  else if (rate == 25) tag = MKTAG('x','d','5','5');
1000  else if (rate == 30) tag = MKTAG('x','d','5','1');
1001  else if (rate == 50) tag = MKTAG('x','d','5','a');
1002  else if (rate == 60) tag = MKTAG('x','d','5','9');
1003  }
1004  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1005  if (!interlaced) {
1006  if (rate == 24) tag = MKTAG('x','d','5','d');
1007  else if (rate == 25) tag = MKTAG('x','d','5','e');
1008  else if (rate == 30) tag = MKTAG('x','d','5','f');
1009  } else {
1010  if (rate == 25) tag = MKTAG('x','d','5','c');
1011  else if (rate == 30) tag = MKTAG('x','d','5','b');
1012  }
1013  }
1014  }
1015 
1016  return tag;
1017 }
1018 
1019 static const struct {
1021  uint32_t tag;
1022  unsigned bps;
1023 } mov_pix_fmt_tags[] = {
1024  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1025  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1026  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1027  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1028  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1029  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1030  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1031  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1032  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1033  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1034  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1035  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1036  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1037  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1038  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1039 };
1040 
1042 {
1043  int tag = track->enc->codec_tag;
1044  int i;
1045  enum AVPixelFormat pix_fmt;
1046 
1047  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1048  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1049  tag = mov_pix_fmt_tags[i].tag;
1050  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1051  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1052  break;
1053  }
1054  }
1055 
1057  track->enc->bits_per_coded_sample);
1058  if (tag == MKTAG('r','a','w',' ') &&
1059  track->enc->pix_fmt != pix_fmt &&
1060  track->enc->pix_fmt != AV_PIX_FMT_NONE)
1061  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1062  av_get_pix_fmt_name(track->enc->pix_fmt));
1063  return tag;
1064 }
1065 
1067 {
1068  int tag = track->enc->codec_tag;
1069 
1070  if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1071  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1072  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1073  track->enc->codec_id == AV_CODEC_ID_H263 ||
1074  track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1075  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1076  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1077  tag = mov_get_dv_codec_tag(s, track);
1078  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1079  tag = mov_get_rawvideo_codec_tag(s, track);
1080  else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1081  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1082  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1084  if (!tag) { // if no mac fcc found, try with Microsoft tags
1086  if (tag)
1087  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1088  "the file may be unplayable!\n");
1089  }
1090  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1092  if (!tag) { // if no mac fcc found, try with Microsoft tags
1093  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1094  if (ms_tag) {
1095  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1096  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1097  "the file may be unplayable!\n");
1098  }
1099  }
1100  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1102  }
1103 
1104  return tag;
1105 }
1106 
1107 static const AVCodecTag codec_3gp_tags[] = {
1108  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1109  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1110  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1111  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1112  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1113  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1114  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1115  { AV_CODEC_ID_NONE, 0 },
1116 };
1117 
1118 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1119  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1120  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1121  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1122  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1123  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1124  { AV_CODEC_ID_NONE, 0 },
1125 };
1126 
1128 {
1129  int tag;
1130 
1131  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1132  tag = mp4_get_codec_tag(s, track);
1133  else if (track->mode == MODE_ISM) {
1134  tag = mp4_get_codec_tag(s, track);
1135  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1136  tag = MKTAG('w', 'm', 'a', ' ');
1137  } else if (track->mode == MODE_IPOD)
1138  tag = ipod_get_codec_tag(s, track);
1139  else if (track->mode & MODE_3GP)
1140  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1141  else if (track->mode == MODE_F4V)
1142  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1143  else
1144  tag = mov_get_codec_tag(s, track);
1145 
1146  return tag;
1147 }
1148 
1149 /** Write uuid atom.
1150  * Needed to make file play in iPods running newest firmware
1151  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1152  */
1154 {
1155  avio_wb32(pb, 28);
1156  ffio_wfourcc(pb, "uuid");
1157  avio_wb32(pb, 0x6b6840f2);
1158  avio_wb32(pb, 0x5f244fc5);
1159  avio_wb32(pb, 0xba39a51b);
1160  avio_wb32(pb, 0xcf0323f3);
1161  avio_wb32(pb, 0x0);
1162  return 28;
1163 }
1164 
1165 static const uint16_t fiel_data[] = {
1166  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1167 };
1168 
1169 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1170 {
1171  unsigned mov_field_order = 0;
1172  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1173  mov_field_order = fiel_data[track->enc->field_order];
1174  else
1175  return 0;
1176  avio_wb32(pb, 10);
1177  ffio_wfourcc(pb, "fiel");
1178  avio_wb16(pb, mov_field_order);
1179  return 10;
1180 }
1181 
1183 {
1184  int64_t pos = avio_tell(pb);
1185  avio_wb32(pb, 0); /* size */
1186  avio_wl32(pb, track->tag); // store it byteswapped
1187  avio_wb32(pb, 0); /* Reserved */
1188  avio_wb16(pb, 0); /* Reserved */
1189  avio_wb16(pb, 1); /* Data-reference index */
1190 
1191  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1192  mov_write_esds_tag(pb, track);
1193  else if (track->enc->extradata_size)
1194  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1195 
1196  return update_size(pb, pos);
1197 }
1198 
1199 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1200 {
1201  AVRational sar;
1202  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1203  track->enc->sample_aspect_ratio.den, INT_MAX);
1204 
1205  avio_wb32(pb, 16);
1206  ffio_wfourcc(pb, "pasp");
1207  avio_wb32(pb, sar.num);
1208  avio_wb32(pb, sar.den);
1209  return 16;
1210 }
1211 
1212 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1213 {
1214  AVDictionaryEntry *encoder;
1215  int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1216  || (track->enc->width == 1440 && track->enc->height == 1080)
1217  || (track->enc->width == 1920 && track->enc->height == 1080);
1218 
1219  if (track->mode == MODE_MOV &&
1220  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1221  av_strlcpy(compressor_name, encoder->value, 32);
1222  } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1223  int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1224  AVStream *st = track->st;
1225  int rate = av_q2d(find_fps(NULL, st));
1226  av_strlcatf(compressor_name, len, "XDCAM");
1227  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1228  av_strlcatf(compressor_name, len, " HD422");
1229  } else if(track->enc->width == 1440) {
1230  av_strlcatf(compressor_name, len, " HD");
1231  } else
1232  av_strlcatf(compressor_name, len, " EX");
1233 
1234  av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1235 
1236  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1237  }
1238 }
1239 
1241 {
1242  int64_t pos = avio_tell(pb);
1243  char compressor_name[32] = { 0 };
1244 
1245  avio_wb32(pb, 0); /* size */
1246  avio_wl32(pb, track->tag); // store it byteswapped
1247  avio_wb32(pb, 0); /* Reserved */
1248  avio_wb16(pb, 0); /* Reserved */
1249  avio_wb16(pb, 1); /* Data-reference index */
1250 
1251  avio_wb16(pb, 0); /* Codec stream version */
1252  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1253  if (track->mode == MODE_MOV) {
1254  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1255  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1256  avio_wb32(pb, 0); /* Temporal Quality */
1257  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1258  } else {
1259  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1260  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1261  }
1262  } else {
1263  avio_wb32(pb, 0); /* Reserved */
1264  avio_wb32(pb, 0); /* Reserved */
1265  avio_wb32(pb, 0); /* Reserved */
1266  }
1267  avio_wb16(pb, track->enc->width); /* Video width */
1268  avio_wb16(pb, track->height); /* Video height */
1269  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1270  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1271  avio_wb32(pb, 0); /* Data size (= 0) */
1272  avio_wb16(pb, 1); /* Frame count (= 1) */
1273 
1274  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1275  find_compressor(compressor_name, 32, track);
1276  avio_w8(pb, strlen(compressor_name));
1277  avio_write(pb, compressor_name, 31);
1278 
1279  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1280  avio_wb16(pb, track->enc->bits_per_coded_sample);
1281  else
1282  avio_wb16(pb, 0x18); /* Reserved */
1283  avio_wb16(pb, 0xffff); /* Reserved */
1284  if (track->tag == MKTAG('m','p','4','v'))
1285  mov_write_esds_tag(pb, track);
1286  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1287  mov_write_d263_tag(pb);
1288  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1289  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1290  mov_write_extradata_tag(pb, track);
1291  avio_wb32(pb, 0);
1292  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1293  mov_write_avid_tag(pb, track);
1294  else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1295  mov_write_hvcc_tag(pb, track);
1296  else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1297  mov_write_avcc_tag(pb, track);
1298  if (track->mode == MODE_IPOD)
1300  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1301  mov_write_dvc1_tag(pb, track);
1302  else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1303  track->enc->codec_id == AV_CODEC_ID_VP6A) {
1304  /* Don't write any potential extradata here - the cropping
1305  * is signalled via the normal width/height fields. */
1306  } else if (track->vos_len > 0)
1307  mov_write_glbl_tag(pb, track);
1308 
1309  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1310  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1311  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1312  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1313  mov_write_fiel_tag(pb, track);
1314 
1315  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1316  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1317  mov_write_pasp_tag(pb, track);
1318  }
1319 
1320  return update_size(pb, pos);
1321 }
1322 
1323 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1324 {
1325  int64_t pos = avio_tell(pb);
1326  avio_wb32(pb, 0); /* size */
1327  ffio_wfourcc(pb, "rtp ");
1328  avio_wb32(pb, 0); /* Reserved */
1329  avio_wb16(pb, 0); /* Reserved */
1330  avio_wb16(pb, 1); /* Data-reference index */
1331 
1332  avio_wb16(pb, 1); /* Hint track version */
1333  avio_wb16(pb, 1); /* Highest compatible version */
1334  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1335 
1336  avio_wb32(pb, 12); /* size */
1337  ffio_wfourcc(pb, "tims");
1338  avio_wb32(pb, track->timescale);
1339 
1340  return update_size(pb, pos);
1341 }
1342 
1343 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1344 {
1345  uint64_t str_size =strlen(reel_name);
1346  int64_t pos = avio_tell(pb);
1347 
1348  if (str_size >= UINT16_MAX){
1349  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1350  avio_wb16(pb, 0);
1351  return AVERROR(EINVAL);
1352  }
1353 
1354  avio_wb32(pb, 0); /* size */
1355  ffio_wfourcc(pb, "name"); /* Data format */
1356  avio_wb16(pb, str_size); /* string size */
1357  avio_wb16(pb, track->language); /* langcode */
1358  avio_write(pb, reel_name, str_size); /* reel name */
1359  return update_size(pb,pos);
1360 }
1361 
1362 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1363 {
1364  int64_t pos = avio_tell(pb);
1365 #if 1
1366  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1367  int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1368  AVDictionaryEntry *t = NULL;
1369 
1370  if (nb_frames > 255) {
1371  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1372  return AVERROR(EINVAL);
1373  }
1374 
1375  avio_wb32(pb, 0); /* size */
1376  ffio_wfourcc(pb, "tmcd"); /* Data format */
1377  avio_wb32(pb, 0); /* Reserved */
1378  avio_wb32(pb, 1); /* Data reference index */
1379  avio_wb32(pb, 0); /* Flags */
1380  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1381  avio_wb32(pb, track->timescale); /* Timescale */
1382  avio_wb32(pb, frame_duration); /* Frame duration */
1383  avio_w8(pb, nb_frames); /* Number of frames */
1384  avio_w8(pb, 0); /* Reserved */
1385 
1386  if (track->st)
1387  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1388 
1389  if (t && utf8len(t->value))
1390  mov_write_source_reference_tag(pb, track, t->value);
1391  else
1392  avio_wb16(pb, 0); /* zero size */
1393 #else
1394 
1395  avio_wb32(pb, 0); /* size */
1396  ffio_wfourcc(pb, "tmcd"); /* Data format */
1397  avio_wb32(pb, 0); /* Reserved */
1398  avio_wb32(pb, 1); /* Data reference index */
1399  if (track->enc->extradata_size)
1400  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1401 #endif
1402  return update_size(pb, pos);
1403 }
1404 
1405 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1406 {
1407  int64_t pos = avio_tell(pb);
1408  avio_wb32(pb, 0); /* size */
1409  ffio_wfourcc(pb, "stsd");
1410  avio_wb32(pb, 0); /* version & flags */
1411  avio_wb32(pb, 1); /* entry count */
1412  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1413  mov_write_video_tag(pb, track);
1414  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1415  mov_write_audio_tag(pb, track);
1416  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1417  mov_write_subtitle_tag(pb, track);
1418  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1419  mov_write_rtp_tag(pb, track);
1420  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1421  mov_write_tmcd_tag(pb, track);
1422  return update_size(pb, pos);
1423 }
1424 
1425 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1426 {
1427  MOVStts *ctts_entries;
1428  uint32_t entries = 0;
1429  uint32_t atom_size;
1430  int i;
1431 
1432  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1433  ctts_entries[0].count = 1;
1434  ctts_entries[0].duration = track->cluster[0].cts;
1435  for (i = 1; i < track->entry; i++) {
1436  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1437  ctts_entries[entries].count++; /* compress */
1438  } else {
1439  entries++;
1440  ctts_entries[entries].duration = track->cluster[i].cts;
1441  ctts_entries[entries].count = 1;
1442  }
1443  }
1444  entries++; /* last one */
1445  atom_size = 16 + (entries * 8);
1446  avio_wb32(pb, atom_size); /* size */
1447  ffio_wfourcc(pb, "ctts");
1448  avio_wb32(pb, 0); /* version & flags */
1449  avio_wb32(pb, entries); /* entry count */
1450  for (i = 0; i < entries; i++) {
1451  avio_wb32(pb, ctts_entries[i].count);
1452  avio_wb32(pb, ctts_entries[i].duration);
1453  }
1454  av_free(ctts_entries);
1455  return atom_size;
1456 }
1457 
1458 /* Time to sample atom */
1459 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1460 {
1461  MOVStts *stts_entries;
1462  uint32_t entries = -1;
1463  uint32_t atom_size;
1464  int i;
1465 
1466  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1467  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1468  stts_entries[0].count = track->sample_count;
1469  stts_entries[0].duration = 1;
1470  entries = 1;
1471  } else {
1472  stts_entries = track->entry ?
1473  av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1474  NULL;
1475  for (i = 0; i < track->entry; i++) {
1476  int duration = get_cluster_duration(track, i);
1477  if (i && duration == stts_entries[entries].duration) {
1478  stts_entries[entries].count++; /* compress */
1479  } else {
1480  entries++;
1481  stts_entries[entries].duration = duration;
1482  stts_entries[entries].count = 1;
1483  }
1484  }
1485  entries++; /* last one */
1486  }
1487  atom_size = 16 + (entries * 8);
1488  avio_wb32(pb, atom_size); /* size */
1489  ffio_wfourcc(pb, "stts");
1490  avio_wb32(pb, 0); /* version & flags */
1491  avio_wb32(pb, entries); /* entry count */
1492  for (i = 0; i < entries; i++) {
1493  avio_wb32(pb, stts_entries[i].count);
1494  avio_wb32(pb, stts_entries[i].duration);
1495  }
1496  av_free(stts_entries);
1497  return atom_size;
1498 }
1499 
1501 {
1502  avio_wb32(pb, 28); /* size */
1503  ffio_wfourcc(pb, "dref");
1504  avio_wb32(pb, 0); /* version & flags */
1505  avio_wb32(pb, 1); /* entry count */
1506 
1507  avio_wb32(pb, 0xc); /* size */
1508  //FIXME add the alis and rsrc atom
1509  ffio_wfourcc(pb, "url ");
1510  avio_wb32(pb, 1); /* version & flags */
1511 
1512  return 28;
1513 }
1514 
1515 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1516 {
1517  int64_t pos = avio_tell(pb);
1518  avio_wb32(pb, 0); /* size */
1519  ffio_wfourcc(pb, "stbl");
1520  mov_write_stsd_tag(pb, track);
1521  mov_write_stts_tag(pb, track);
1522  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1523  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1524  track->has_keyframes && track->has_keyframes < track->entry)
1525  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1526  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1528  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1529  track->flags & MOV_TRACK_CTTS)
1530  mov_write_ctts_tag(pb, track);
1531  mov_write_stsc_tag(pb, track);
1532  mov_write_stsz_tag(pb, track);
1533  mov_write_stco_tag(pb, track);
1534  return update_size(pb, pos);
1535 }
1536 
1538 {
1539  int64_t pos = avio_tell(pb);
1540  avio_wb32(pb, 0); /* size */
1541  ffio_wfourcc(pb, "dinf");
1542  mov_write_dref_tag(pb);
1543  return update_size(pb, pos);
1544 }
1545 
1547 {
1548  avio_wb32(pb, 12);
1549  ffio_wfourcc(pb, "nmhd");
1550  avio_wb32(pb, 0);
1551  return 12;
1552 }
1553 
1554 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1555 {
1556  int64_t pos = avio_tell(pb);
1557  const char *font = "Lucida Grande";
1558  avio_wb32(pb, 0); /* size */
1559  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1560  avio_wb32(pb, 0); /* version & flags */
1561  avio_wb16(pb, 0); /* text font */
1562  avio_wb16(pb, 0); /* text face */
1563  avio_wb16(pb, 12); /* text size */
1564  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1565  avio_wb16(pb, 0x0000); /* text color (red) */
1566  avio_wb16(pb, 0x0000); /* text color (green) */
1567  avio_wb16(pb, 0x0000); /* text color (blue) */
1568  avio_wb16(pb, 0xffff); /* background color (red) */
1569  avio_wb16(pb, 0xffff); /* background color (green) */
1570  avio_wb16(pb, 0xffff); /* background color (blue) */
1571  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1572  avio_write(pb, font, strlen(font)); /* font name */
1573  return update_size(pb, pos);
1574 }
1575 
1576 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1577 {
1578  int64_t pos = avio_tell(pb);
1579  avio_wb32(pb, 0); /* size */
1580  ffio_wfourcc(pb, "gmhd");
1581  avio_wb32(pb, 0x18); /* gmin size */
1582  ffio_wfourcc(pb, "gmin");/* generic media info */
1583  avio_wb32(pb, 0); /* version & flags */
1584  avio_wb16(pb, 0x40); /* graphics mode = */
1585  avio_wb16(pb, 0x8000); /* opColor (r?) */
1586  avio_wb16(pb, 0x8000); /* opColor (g?) */
1587  avio_wb16(pb, 0x8000); /* opColor (b?) */
1588  avio_wb16(pb, 0); /* balance */
1589  avio_wb16(pb, 0); /* reserved */
1590 
1591  /*
1592  * This special text atom is required for
1593  * Apple Quicktime chapters. The contents
1594  * don't appear to be documented, so the
1595  * bytes are copied verbatim.
1596  */
1597  if (track->tag != MKTAG('c','6','0','8')) {
1598  avio_wb32(pb, 0x2C); /* size */
1599  ffio_wfourcc(pb, "text");
1600  avio_wb16(pb, 0x01);
1601  avio_wb32(pb, 0x00);
1602  avio_wb32(pb, 0x00);
1603  avio_wb32(pb, 0x00);
1604  avio_wb32(pb, 0x01);
1605  avio_wb32(pb, 0x00);
1606  avio_wb32(pb, 0x00);
1607  avio_wb32(pb, 0x00);
1608  avio_wb32(pb, 0x00004000);
1609  avio_wb16(pb, 0x0000);
1610  }
1611 
1612  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1613  int64_t tmcd_pos = avio_tell(pb);
1614  avio_wb32(pb, 0); /* size */
1615  ffio_wfourcc(pb, "tmcd");
1616  mov_write_tcmi_tag(pb, track);
1617  update_size(pb, tmcd_pos);
1618  }
1619  return update_size(pb, pos);
1620 }
1621 
1623 {
1624  avio_wb32(pb, 16); /* size */
1625  ffio_wfourcc(pb, "smhd");
1626  avio_wb32(pb, 0); /* version & flags */
1627  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1628  avio_wb16(pb, 0); /* reserved */
1629  return 16;
1630 }
1631 
1633 {
1634  avio_wb32(pb, 0x14); /* size (always 0x14) */
1635  ffio_wfourcc(pb, "vmhd");
1636  avio_wb32(pb, 0x01); /* version & flags */
1637  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1638  return 0x14;
1639 }
1640 
1641 static int is_clcp_track(MOVTrack *track)
1642 {
1643  return track->tag == MKTAG('c','7','0','8') ||
1644  track->tag == MKTAG('c','6','0','8');
1645 }
1646 
1647 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1648 {
1649  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1650  int64_t pos = avio_tell(pb);
1651 
1652  hdlr = "dhlr";
1653  hdlr_type = "url ";
1654  descr = "DataHandler";
1655 
1656  if (track) {
1657  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1658  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1659  hdlr_type = "vide";
1660  descr = "VideoHandler";
1661  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1662  hdlr_type = "soun";
1663  descr = "SoundHandler";
1664  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1665  if (is_clcp_track(track)) {
1666  hdlr_type = "clcp";
1667  descr = "ClosedCaptionHandler";
1668  } else {
1669  if (track->tag == MKTAG('t','x','3','g')) {
1670  hdlr_type = "sbtl";
1671  } else if (track->tag == MKTAG('m','p','4','s')) {
1672  hdlr_type = "subp";
1673  } else {
1674  hdlr_type = "text";
1675  }
1676  descr = "SubtitleHandler";
1677  }
1678  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1679  hdlr_type = "hint";
1680  descr = "HintHandler";
1681  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1682  hdlr_type = "tmcd";
1683  descr = "TimeCodeHandler";
1684  } else {
1685  char tag_buf[32];
1686  av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1687  track->enc->codec_tag);
1688 
1689  av_log(track->enc, AV_LOG_WARNING,
1690  "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1691  tag_buf, track->enc->codec_tag);
1692  }
1693  if (track->st) {
1694  // hdlr.name is used by some players to identify the content title
1695  // of the track. So if an alternate handler description is
1696  // specified, use it.
1697  AVDictionaryEntry *t;
1698  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1699  if (t && utf8len(t->value))
1700  descr = t->value;
1701  }
1702  }
1703 
1704  avio_wb32(pb, 0); /* size */
1705  ffio_wfourcc(pb, "hdlr");
1706  avio_wb32(pb, 0); /* Version & flags */
1707  avio_write(pb, hdlr, 4); /* handler */
1708  ffio_wfourcc(pb, hdlr_type); /* handler type */
1709  avio_wb32(pb, 0); /* reserved */
1710  avio_wb32(pb, 0); /* reserved */
1711  avio_wb32(pb, 0); /* reserved */
1712  if (!track || track->mode == MODE_MOV)
1713  avio_w8(pb, strlen(descr)); /* pascal string */
1714  avio_write(pb, descr, strlen(descr)); /* handler description */
1715  if (track && track->mode != MODE_MOV)
1716  avio_w8(pb, 0); /* c string */
1717  return update_size(pb, pos);
1718 }
1719 
1721 {
1722  /* This atom must be present, but leaving the values at zero
1723  * seems harmless. */
1724  avio_wb32(pb, 28); /* size */
1725  ffio_wfourcc(pb, "hmhd");
1726  avio_wb32(pb, 0); /* version, flags */
1727  avio_wb16(pb, 0); /* maxPDUsize */
1728  avio_wb16(pb, 0); /* avgPDUsize */
1729  avio_wb32(pb, 0); /* maxbitrate */
1730  avio_wb32(pb, 0); /* avgbitrate */
1731  avio_wb32(pb, 0); /* reserved */
1732  return 28;
1733 }
1734 
1735 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1736 {
1737  int64_t pos = avio_tell(pb);
1738  avio_wb32(pb, 0); /* size */
1739  ffio_wfourcc(pb, "minf");
1740  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1741  mov_write_vmhd_tag(pb);
1742  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1743  mov_write_smhd_tag(pb);
1744  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1745  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1746  mov_write_gmhd_tag(pb, track);
1747  } else {
1748  mov_write_nmhd_tag(pb);
1749  }
1750  } else if (track->tag == MKTAG('r','t','p',' ')) {
1751  mov_write_hmhd_tag(pb);
1752  } else if (track->tag == MKTAG('t','m','c','d')) {
1753  mov_write_gmhd_tag(pb, track);
1754  }
1755  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1756  mov_write_hdlr_tag(pb, NULL);
1757  mov_write_dinf_tag(pb);
1758  mov_write_stbl_tag(pb, track);
1759  return update_size(pb, pos);
1760 }
1761 
1762 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1763 {
1764  int version = track->track_duration < INT32_MAX ? 0 : 1;
1765 
1766  if (track->mode == MODE_ISM)
1767  version = 1;
1768 
1769  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1770  ffio_wfourcc(pb, "mdhd");
1771  avio_w8(pb, version);
1772  avio_wb24(pb, 0); /* flags */
1773  if (version == 1) {
1774  avio_wb64(pb, track->time);
1775  avio_wb64(pb, track->time);
1776  } else {
1777  avio_wb32(pb, track->time); /* creation time */
1778  avio_wb32(pb, track->time); /* modification time */
1779  }
1780  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1781  if (!track->entry)
1782  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1783  else
1784  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1785  avio_wb16(pb, track->language); /* language */
1786  avio_wb16(pb, 0); /* reserved (quality) */
1787 
1788  if (version != 0 && track->mode == MODE_MOV) {
1789  av_log(NULL, AV_LOG_ERROR,
1790  "FATAL error, file duration too long for timebase, this file will not be\n"
1791  "playable with quicktime. Choose a different timebase or a different\n"
1792  "container format\n");
1793  }
1794 
1795  return 32;
1796 }
1797 
1798 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1799 {
1800  int64_t pos = avio_tell(pb);
1801  avio_wb32(pb, 0); /* size */
1802  ffio_wfourcc(pb, "mdia");
1803  mov_write_mdhd_tag(pb, track);
1804  mov_write_hdlr_tag(pb, track);
1805  mov_write_minf_tag(pb, track);
1806  return update_size(pb, pos);
1807 }
1808 
1809 /* transformation matrix
1810  |a b u|
1811  |c d v|
1812  |tx ty w| */
1813 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1814  int16_t d, int16_t tx, int16_t ty)
1815 {
1816  avio_wb32(pb, a << 16); /* 16.16 format */
1817  avio_wb32(pb, b << 16); /* 16.16 format */
1818  avio_wb32(pb, 0); /* u in 2.30 format */
1819  avio_wb32(pb, c << 16); /* 16.16 format */
1820  avio_wb32(pb, d << 16); /* 16.16 format */
1821  avio_wb32(pb, 0); /* v in 2.30 format */
1822  avio_wb32(pb, tx << 16); /* 16.16 format */
1823  avio_wb32(pb, ty << 16); /* 16.16 format */
1824  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1825 }
1826 
1828  MOVTrack *track, AVStream *st)
1829 {
1831  track->timescale, AV_ROUND_UP);
1832  int version = duration < INT32_MAX ? 0 : 1;
1834  int rotation = 0;
1835  int group = 0;
1836 
1837 
1838  if (st) {
1839  if (mov->per_stream_grouping)
1840  group = st->index;
1841  else
1842  group = st->codec->codec_type;
1843  }
1844 
1845  if (track->flags & MOV_TRACK_ENABLED)
1846  flags |= MOV_TKHD_FLAG_ENABLED;
1847 
1848  if (track->mode == MODE_ISM)
1849  version = 1;
1850 
1851  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1852  ffio_wfourcc(pb, "tkhd");
1853  avio_w8(pb, version);
1854  avio_wb24(pb, flags);
1855  if (version == 1) {
1856  avio_wb64(pb, track->time);
1857  avio_wb64(pb, track->time);
1858  } else {
1859  avio_wb32(pb, track->time); /* creation time */
1860  avio_wb32(pb, track->time); /* modification time */
1861  }
1862  avio_wb32(pb, track->track_id); /* track-id */
1863  avio_wb32(pb, 0); /* reserved */
1864  if (!track->entry)
1865  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1866  else
1867  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1868 
1869  avio_wb32(pb, 0); /* reserved */
1870  avio_wb32(pb, 0); /* reserved */
1871  avio_wb16(pb, 0); /* layer */
1872  avio_wb16(pb, group); /* alternate group) */
1873  /* Volume, only for audio */
1874  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1875  avio_wb16(pb, 0x0100);
1876  else
1877  avio_wb16(pb, 0);
1878  avio_wb16(pb, 0); /* reserved */
1879 
1880  /* Matrix structure */
1881  if (st && st->metadata) {
1882  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1883  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1884  }
1885  if (rotation == 90) {
1886  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1887  } else if (rotation == 180) {
1888  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1889  } else if (rotation == 270) {
1890  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1891  } else {
1892  write_matrix(pb, 1, 0, 0, 1, 0, 0);
1893  }
1894  /* Track width and height, for visual only */
1895  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1896  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1897  if (track->mode == MODE_MOV) {
1898  avio_wb32(pb, track->enc->width << 16);
1899  avio_wb32(pb, track->height << 16);
1900  } else {
1901  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1902  if (!sample_aspect_ratio || track->height != track->enc->height)
1903  sample_aspect_ratio = 1;
1904  avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1905  avio_wb32(pb, track->height * 0x10000);
1906  }
1907  } else {
1908  avio_wb32(pb, 0);
1909  avio_wb32(pb, 0);
1910  }
1911  return 0x5c;
1912 }
1913 
1914 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1915 {
1917  track->enc->sample_aspect_ratio.den);
1918 
1919  int64_t pos = avio_tell(pb);
1920 
1921  avio_wb32(pb, 0); /* size */
1922  ffio_wfourcc(pb, "tapt");
1923 
1924  avio_wb32(pb, 20);
1925  ffio_wfourcc(pb, "clef");
1926  avio_wb32(pb, 0);
1927  avio_wb32(pb, width << 16);
1928  avio_wb32(pb, track->enc->height << 16);
1929 
1930  avio_wb32(pb, 20);
1931  ffio_wfourcc(pb, "prof");
1932  avio_wb32(pb, 0);
1933  avio_wb32(pb, width << 16);
1934  avio_wb32(pb, track->enc->height << 16);
1935 
1936  avio_wb32(pb, 20);
1937  ffio_wfourcc(pb, "enof");
1938  avio_wb32(pb, 0);
1939  avio_wb32(pb, track->enc->width << 16);
1940  avio_wb32(pb, track->enc->height << 16);
1941 
1942  return update_size(pb, pos);
1943 }
1944 
1945 // This box seems important for the psp playback ... without it the movie seems to hang
1946 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1947 {
1949  track->timescale, AV_ROUND_UP);
1950  int version = duration < INT32_MAX ? 0 : 1;
1951  int entry_size, entry_count, size;
1952  int64_t delay, start_ct = track->cluster[0].cts;
1953  delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1954  track->timescale, AV_ROUND_DOWN);
1955  version |= delay < INT32_MAX ? 0 : 1;
1956 
1957  entry_size = (version == 1) ? 20 : 12;
1958  entry_count = 1 + (delay > 0);
1959  size = 24 + entry_count * entry_size;
1960 
1961  /* write the atom data */
1962  avio_wb32(pb, size);
1963  ffio_wfourcc(pb, "edts");
1964  avio_wb32(pb, size - 8);
1965  ffio_wfourcc(pb, "elst");
1966  avio_w8(pb, version);
1967  avio_wb24(pb, 0); /* flags */
1968 
1969  avio_wb32(pb, entry_count);
1970  if (delay > 0) { /* add an empty edit to delay presentation */
1971  if (version == 1) {
1972  avio_wb64(pb, delay);
1973  avio_wb64(pb, -1);
1974  } else {
1975  avio_wb32(pb, delay);
1976  avio_wb32(pb, -1);
1977  }
1978  avio_wb32(pb, 0x00010000);
1979  } else {
1981  start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1982  duration += delay;
1983  }
1984 
1985  /* duration */
1986  if (version == 1) {
1987  avio_wb64(pb, duration);
1988  avio_wb64(pb, start_ct);
1989  } else {
1990  avio_wb32(pb, duration);
1991  avio_wb32(pb, start_ct);
1992  }
1993  avio_wb32(pb, 0x00010000);
1994  return size;
1995 }
1996 
1997 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1998 {
1999  avio_wb32(pb, 20); // size
2000  ffio_wfourcc(pb, "tref");
2001  avio_wb32(pb, 12); // size (subatom)
2002  avio_wl32(pb, track->tref_tag);
2003  avio_wb32(pb, track->tref_id);
2004  return 20;
2005 }
2006 
2007 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2009 {
2010  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2011  ffio_wfourcc(pb, "uuid");
2012  ffio_wfourcc(pb, "USMT");
2013  avio_wb32(pb, 0x21d24fce);
2014  avio_wb32(pb, 0xbb88695c);
2015  avio_wb32(pb, 0xfac9c740);
2016  avio_wb32(pb, 0x1c); // another size here!
2017  ffio_wfourcc(pb, "MTDT");
2018  avio_wb32(pb, 0x00010012);
2019  avio_wb32(pb, 0x0a);
2020  avio_wb32(pb, 0x55c40000);
2021  avio_wb32(pb, 0x1);
2022  avio_wb32(pb, 0x0);
2023  return 0x34;
2024 }
2025 
2026 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2027 {
2028  AVFormatContext *ctx = track->rtp_ctx;
2029  char buf[1000] = "";
2030  int len;
2031 
2032  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2033  NULL, NULL, 0, 0, ctx);
2034  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2035  len = strlen(buf);
2036 
2037  avio_wb32(pb, len + 24);
2038  ffio_wfourcc(pb, "udta");
2039  avio_wb32(pb, len + 16);
2040  ffio_wfourcc(pb, "hnti");
2041  avio_wb32(pb, len + 8);
2042  ffio_wfourcc(pb, "sdp ");
2043  avio_write(pb, buf, len);
2044  return len + 24;
2045 }
2046 
2048  const char *tag, const char *str)
2049 {
2050  int64_t pos = avio_tell(pb);
2051  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2052  if (!t || !utf8len(t->value))
2053  return 0;
2054 
2055  avio_wb32(pb, 0); /* size */
2056  ffio_wfourcc(pb, tag); /* type */
2057  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2058  return update_size(pb, pos);
2059 }
2060 
2062  AVStream *st)
2063 {
2064  AVIOContext *pb_buf;
2065  int ret, size;
2066  uint8_t *buf;
2067 
2068  if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2069  return 0;
2070 
2071  ret = avio_open_dyn_buf(&pb_buf);
2072  if (ret < 0)
2073  return ret;
2074 
2075  if (mov->mode & MODE_MP4)
2076  mov_write_track_metadata(pb_buf, st, "name", "title");
2077 
2078  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2079  avio_wb32(pb, size + 8);
2080  ffio_wfourcc(pb, "udta");
2081  avio_write(pb, buf, size);
2082  }
2083  av_free(buf);
2084 
2085  return 0;
2086 }
2087 
2089  MOVTrack *track, AVStream *st)
2090 {
2091  int64_t pos = avio_tell(pb);
2092  avio_wb32(pb, 0); /* size */
2093  ffio_wfourcc(pb, "trak");
2094  mov_write_tkhd_tag(pb, mov, track, st);
2095  if (supports_edts(mov))
2096  mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
2097  if (track->tref_tag)
2098  mov_write_tref_tag(pb, track);
2099  mov_write_mdia_tag(pb, track);
2100  if (track->mode == MODE_PSP)
2101  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2102  if (track->tag == MKTAG('r','t','p',' '))
2103  mov_write_udta_sdp(pb, track);
2104  if (track->mode == MODE_MOV) {
2105  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2106  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2107  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2108  mov_write_tapt_tag(pb, track);
2109  }
2110  }
2111  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2112  mov_write_tapt_tag(pb, track);
2113  }
2114  }
2115  mov_write_track_udta_tag(pb, mov, st);
2116  return update_size(pb, pos);
2117 }
2118 
2120 {
2121  int i, has_audio = 0, has_video = 0;
2122  int64_t pos = avio_tell(pb);
2123  int audio_profile = mov->iods_audio_profile;
2124  int video_profile = mov->iods_video_profile;
2125  for (i = 0; i < mov->nb_streams; i++) {
2126  if (mov->tracks[i].entry > 0) {
2127  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2128  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2129  }
2130  }
2131  if (audio_profile < 0)
2132  audio_profile = 0xFF - has_audio;
2133  if (video_profile < 0)
2134  video_profile = 0xFF - has_video;
2135  avio_wb32(pb, 0x0); /* size */
2136  ffio_wfourcc(pb, "iods");
2137  avio_wb32(pb, 0); /* version & flags */
2138  put_descr(pb, 0x10, 7);
2139  avio_wb16(pb, 0x004f);
2140  avio_w8(pb, 0xff);
2141  avio_w8(pb, 0xff);
2142  avio_w8(pb, audio_profile);
2143  avio_w8(pb, video_profile);
2144  avio_w8(pb, 0xff);
2145  return update_size(pb, pos);
2146 }
2147 
2148 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2149 {
2150  avio_wb32(pb, 0x20); /* size */
2151  ffio_wfourcc(pb, "trex");
2152  avio_wb32(pb, 0); /* version & flags */
2153  avio_wb32(pb, track->track_id); /* track ID */
2154  avio_wb32(pb, 1); /* default sample description index */
2155  avio_wb32(pb, 0); /* default sample duration */
2156  avio_wb32(pb, 0); /* default sample size */
2157  avio_wb32(pb, 0); /* default sample flags */
2158  return 0;
2159 }
2160 
2162 {
2163  int64_t pos = avio_tell(pb);
2164  int i;
2165  avio_wb32(pb, 0x0); /* size */
2166  ffio_wfourcc(pb, "mvex");
2167  for (i = 0; i < mov->nb_streams; i++)
2168  mov_write_trex_tag(pb, &mov->tracks[i]);
2169  return update_size(pb, pos);
2170 }
2171 
2173 {
2174  int max_track_id = 1, i;
2175  int64_t max_track_len_temp, max_track_len = 0;
2176  int version;
2177 
2178  for (i = 0; i < mov->nb_streams; i++) {
2179  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2180  max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2181  MOV_TIMESCALE,
2182  mov->tracks[i].timescale,
2183  AV_ROUND_UP);
2184  if (max_track_len < max_track_len_temp)
2185  max_track_len = max_track_len_temp;
2186  if (max_track_id < mov->tracks[i].track_id)
2187  max_track_id = mov->tracks[i].track_id;
2188  }
2189  }
2190 
2191  version = max_track_len < UINT32_MAX ? 0 : 1;
2192  (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2193  ffio_wfourcc(pb, "mvhd");
2194  avio_w8(pb, version);
2195  avio_wb24(pb, 0); /* flags */
2196  if (version == 1) {
2197  avio_wb64(pb, mov->time);
2198  avio_wb64(pb, mov->time);
2199  } else {
2200  avio_wb32(pb, mov->time); /* creation time */
2201  avio_wb32(pb, mov->time); /* modification time */
2202  }
2203  avio_wb32(pb, MOV_TIMESCALE);
2204  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2205 
2206  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2207  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2208  avio_wb16(pb, 0); /* reserved */
2209  avio_wb32(pb, 0); /* reserved */
2210  avio_wb32(pb, 0); /* reserved */
2211 
2212  /* Matrix structure */
2213  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2214 
2215  avio_wb32(pb, 0); /* reserved (preview time) */
2216  avio_wb32(pb, 0); /* reserved (preview duration) */
2217  avio_wb32(pb, 0); /* reserved (poster time) */
2218  avio_wb32(pb, 0); /* reserved (selection time) */
2219  avio_wb32(pb, 0); /* reserved (selection duration) */
2220  avio_wb32(pb, 0); /* reserved (current time) */
2221  avio_wb32(pb, max_track_id + 1); /* Next track id */
2222  return 0x6c;
2223 }
2224 
2226  AVFormatContext *s)
2227 {
2228  avio_wb32(pb, 33); /* size */
2229  ffio_wfourcc(pb, "hdlr");
2230  avio_wb32(pb, 0);
2231  avio_wb32(pb, 0);
2232  ffio_wfourcc(pb, "mdir");
2233  ffio_wfourcc(pb, "appl");
2234  avio_wb32(pb, 0);
2235  avio_wb32(pb, 0);
2236  avio_w8(pb, 0);
2237  return 33;
2238 }
2239 
2240 /* helper function to write a data tag with the specified string as data */
2241 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2242 {
2243  if (long_style) {
2244  int size = 16 + strlen(data);
2245  avio_wb32(pb, size); /* size */
2246  ffio_wfourcc(pb, "data");
2247  avio_wb32(pb, 1);
2248  avio_wb32(pb, 0);
2249  avio_write(pb, data, strlen(data));
2250  return size;
2251  } else {
2252  if (!lang)
2253  lang = ff_mov_iso639_to_lang("und", 1);
2254  avio_wb16(pb, strlen(data)); /* string length */
2255  avio_wb16(pb, lang);
2256  avio_write(pb, data, strlen(data));
2257  return strlen(data) + 4;
2258  }
2259 }
2260 
2261 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2262  const char *value, int lang, int long_style)
2263 {
2264  int size = 0;
2265  if (value && value[0]) {
2266  int64_t pos = avio_tell(pb);
2267  avio_wb32(pb, 0); /* size */
2268  ffio_wfourcc(pb, name);
2269  mov_write_string_data_tag(pb, value, lang, long_style);
2270  size = update_size(pb, pos);
2271  }
2272  return size;
2273 }
2274 
2276  const char *name, const char *tag,
2277  int long_style)
2278 {
2279  int l, lang = 0, len, len2;
2280  AVDictionaryEntry *t, *t2 = NULL;
2281  char tag2[16];
2282 
2283  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2284  return 0;
2285 
2286  len = strlen(t->key);
2287  snprintf(tag2, sizeof(tag2), "%s-", tag);
2288  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2289  len2 = strlen(t2->key);
2290  if (len2 == len + 4 && !strcmp(t->value, t2->value)
2291  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2292  lang = l;
2293  break;
2294  }
2295  }
2296  return mov_write_string_tag(pb, name, t->value, lang, long_style);
2297 }
2298 
2299 /* iTunes bpm number */
2301 {
2302  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2303  int size = 0, tmpo = t ? atoi(t->value) : 0;
2304  if (tmpo) {
2305  size = 26;
2306  avio_wb32(pb, size);
2307  ffio_wfourcc(pb, "tmpo");
2308  avio_wb32(pb, size-8); /* size */
2309  ffio_wfourcc(pb, "data");
2310  avio_wb32(pb, 0x15); //type specifier
2311  avio_wb32(pb, 0);
2312  avio_wb16(pb, tmpo); // data
2313  }
2314  return size;
2315 }
2316 
2317 /* iTunes track or disc number */
2319  AVFormatContext *s, int disc)
2320 {
2322  disc ? "disc" : "track",
2323  NULL, 0);
2324  int size = 0, track = t ? atoi(t->value) : 0;
2325  if (track) {
2326  int tracks = 0;
2327  char *slash = strchr(t->value, '/');
2328  if (slash)
2329  tracks = atoi(slash + 1);
2330  avio_wb32(pb, 32); /* size */
2331  ffio_wfourcc(pb, disc ? "disk" : "trkn");
2332  avio_wb32(pb, 24); /* size */
2333  ffio_wfourcc(pb, "data");
2334  avio_wb32(pb, 0); // 8 bytes empty
2335  avio_wb32(pb, 0);
2336  avio_wb16(pb, 0); // empty
2337  avio_wb16(pb, track); // track / disc number
2338  avio_wb16(pb, tracks); // total track / disc number
2339  avio_wb16(pb, 0); // empty
2340  size = 32;
2341  }
2342  return size;
2343 }
2344 
2346  const char *name, const char *tag,
2347  int len)
2348 {
2349  AVDictionaryEntry *t = NULL;
2350  uint8_t num;
2351  int size = 24 + len;
2352 
2353  if (len != 1 && len != 4)
2354  return -1;
2355 
2356  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2357  return 0;
2358  num = atoi(t->value);
2359 
2360  avio_wb32(pb, size);
2361  ffio_wfourcc(pb, name);
2362  avio_wb32(pb, size - 8);
2363  ffio_wfourcc(pb, "data");
2364  avio_wb32(pb, 0x15);
2365  avio_wb32(pb, 0);
2366  if (len==4) avio_wb32(pb, num);
2367  else avio_w8 (pb, num);
2368 
2369  return size;
2370 }
2371 
2372 /* iTunes meta data list */
2374  AVFormatContext *s)
2375 {
2376  int64_t pos = avio_tell(pb);
2377  avio_wb32(pb, 0); /* size */
2378  ffio_wfourcc(pb, "ilst");
2379  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2380  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2381  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2382  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2383  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2384  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2385  if (!mov->exact &&
2386  !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2387  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2388  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2389  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2390  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2391  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2392  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2393  mov_write_string_metadata(s, pb, "desc", "description",1);
2394  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2395  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2396  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2397  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2398  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2399  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2400  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2401  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2402  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2403  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2404  mov_write_trkn_tag(pb, mov, s, 0); // track number
2405  mov_write_trkn_tag(pb, mov, s, 1); // disc number
2406  mov_write_tmpo_tag(pb, s);
2407  return update_size(pb, pos);
2408 }
2409 
2410 /* iTunes meta data tag */
2412  AVFormatContext *s)
2413 {
2414  int size = 0;
2415  int64_t pos = avio_tell(pb);
2416  avio_wb32(pb, 0); /* size */
2417  ffio_wfourcc(pb, "meta");
2418  avio_wb32(pb, 0);
2419  mov_write_itunes_hdlr_tag(pb, mov, s);
2420  mov_write_ilst_tag(pb, mov, s);
2421  size = update_size(pb, pos);
2422  return size;
2423 }
2424 
2426  const char *name, const char *key)
2427 {
2428  int len;
2429  AVDictionaryEntry *t;
2430 
2431  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2432  return 0;
2433 
2434  len = strlen(t->value);
2435  if (len > 0) {
2436  int size = len + 8;
2437  avio_wb32(pb, size);
2438  ffio_wfourcc(pb, name);
2439  avio_write(pb, t->value, len);
2440  return size;
2441  }
2442  return 0;
2443 }
2444 
2445 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2446 {
2447  int val;
2448  while (*b) {
2449  GET_UTF8(val, *b++, return -1;)
2450  avio_wb16(pb, val);
2451  }
2452  avio_wb16(pb, 0x00);
2453  return 0;
2454 }
2455 
2456 static uint16_t language_code(const char *str)
2457 {
2458  return (((str[0] - 0x60) & 0x1F) << 10) +
2459  (((str[1] - 0x60) & 0x1F) << 5) +
2460  (( str[2] - 0x60) & 0x1F);
2461 }
2462 
2464  const char *tag, const char *str)
2465 {
2466  int64_t pos = avio_tell(pb);
2467  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2468  if (!t || !utf8len(t->value))
2469  return 0;
2470  avio_wb32(pb, 0); /* size */
2471  ffio_wfourcc(pb, tag); /* type */
2472  avio_wb32(pb, 0); /* version + flags */
2473  if (!strcmp(tag, "yrrc"))
2474  avio_wb16(pb, atoi(t->value));
2475  else {
2476  avio_wb16(pb, language_code("eng")); /* language */
2477  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2478  if (!strcmp(tag, "albm") &&
2479  (t = av_dict_get(s->metadata, "track", NULL, 0)))
2480  avio_w8(pb, atoi(t->value));
2481  }
2482  return update_size(pb, pos);
2483 }
2484 
2486 {
2487  int64_t pos = avio_tell(pb);
2488  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2489 
2490  avio_wb32(pb, 0); // size
2491  ffio_wfourcc(pb, "chpl");
2492  avio_wb32(pb, 0x01000000); // version + flags
2493  avio_wb32(pb, 0); // unknown
2494  avio_w8(pb, nb_chapters);
2495 
2496  for (i = 0; i < nb_chapters; i++) {
2497  AVChapter *c = s->chapters[i];
2498  AVDictionaryEntry *t;
2499  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2500 
2501  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2502  int len = FFMIN(strlen(t->value), 255);
2503  avio_w8(pb, len);
2504  avio_write(pb, t->value, len);
2505  } else
2506  avio_w8(pb, 0);
2507  }
2508  return update_size(pb, pos);
2509 }
2510 
2512  AVFormatContext *s)
2513 {
2514  AVIOContext *pb_buf;
2515  int ret, size;
2516  uint8_t *buf;
2517 
2518  ret = avio_open_dyn_buf(&pb_buf);
2519  if (ret < 0)
2520  return ret;
2521 
2522  if (mov->mode & MODE_3GP) {
2523  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2524  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2525  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2526  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2527  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2528  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2529  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2530  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2531  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2532  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2533  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2534  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2535  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2536  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2537  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2538  // currently ignored by mov.c
2539  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2540  // add support for libquicktime, this atom is also actually read by mov.c
2541  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2542  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2543  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2544  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2545  } else {
2546  /* iTunes meta data */
2547  mov_write_meta_tag(pb_buf, mov, s);
2548  }
2549 
2550  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2551  mov_write_chpl_tag(pb_buf, s);
2552 
2553  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2554  avio_wb32(pb, size + 8);
2555  ffio_wfourcc(pb, "udta");
2556  avio_write(pb, buf, size);
2557  }
2558  av_free(buf);
2559 
2560  return 0;
2561 }
2562 
2564  const char *str, const char *lang, int type)
2565 {
2566  int len = utf8len(str) + 1;
2567  if (len <= 0)
2568  return;
2569  avio_wb16(pb, len * 2 + 10); /* size */
2570  avio_wb32(pb, type); /* type */
2571  avio_wb16(pb, language_code(lang)); /* language */
2572  avio_wb16(pb, 0x01); /* ? */
2573  ascii_to_wc(pb, str);
2574 }
2575 
2577 {
2578  MOVMuxContext *mov = s->priv_data;
2579  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2580  int64_t pos, pos2;
2581 
2582  if (title) {
2583  pos = avio_tell(pb);
2584  avio_wb32(pb, 0); /* size placeholder*/
2585  ffio_wfourcc(pb, "uuid");
2586  ffio_wfourcc(pb, "USMT");
2587  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2588  avio_wb32(pb, 0xbb88695c);
2589  avio_wb32(pb, 0xfac9c740);
2590 
2591  pos2 = avio_tell(pb);
2592  avio_wb32(pb, 0); /* size placeholder*/
2593  ffio_wfourcc(pb, "MTDT");
2594  avio_wb16(pb, 4);
2595 
2596  // ?
2597  avio_wb16(pb, 0x0C); /* size */
2598  avio_wb32(pb, 0x0B); /* type */
2599  avio_wb16(pb, language_code("und")); /* language */
2600  avio_wb16(pb, 0x0); /* ? */
2601  avio_wb16(pb, 0x021C); /* data */
2602 
2603  if (!mov->exact)
2604  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2605  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2606  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2607 
2608  update_size(pb, pos2);
2609  return update_size(pb, pos);
2610  }
2611 
2612  return 0;
2613 }
2614 
2615 static void build_chunks(MOVTrack *trk)
2616 {
2617  int i;
2618  MOVIentry *chunk = &trk->cluster[0];
2619  uint64_t chunkSize = chunk->size;
2620  chunk->chunkNum = 1;
2621  if (trk->chunkCount)
2622  return;
2623  trk->chunkCount = 1;
2624  for (i = 1; i<trk->entry; i++){
2625  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2626  chunkSize + trk->cluster[i].size < (1<<20)){
2627  chunkSize += trk->cluster[i].size;
2628  chunk->samples_in_chunk += trk->cluster[i].entries;
2629  } else {
2630  trk->cluster[i].chunkNum = chunk->chunkNum+1;
2631  chunk=&trk->cluster[i];
2632  chunkSize = chunk->size;
2633  trk->chunkCount++;
2634  }
2635  }
2636 }
2637 
2639  AVFormatContext *s)
2640 {
2641  int i;
2642  int64_t pos = avio_tell(pb);
2643  avio_wb32(pb, 0); /* size placeholder*/
2644  ffio_wfourcc(pb, "moov");
2645 
2646  for (i = 0; i < mov->nb_streams; i++) {
2647  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2648  continue;
2649 
2650  mov->tracks[i].time = mov->time;
2651  mov->tracks[i].track_id = i + 1;
2652 
2653  if (mov->tracks[i].entry)
2654  build_chunks(&mov->tracks[i]);
2655  }
2656 
2657  if (mov->chapter_track)
2658  for (i = 0; i < s->nb_streams; i++) {
2659  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2660  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2661  }
2662  for (i = 0; i < mov->nb_streams; i++) {
2663  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2664  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2665  mov->tracks[i].tref_id =
2666  mov->tracks[mov->tracks[i].src_track].track_id;
2667  }
2668  }
2669  for (i = 0; i < mov->nb_streams; i++) {
2670  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2671  int src_trk = mov->tracks[i].src_track;
2672  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2673  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2674  //src_trk may have a different timescale than the tmcd track
2675  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2676  mov->tracks[i].timescale,
2677  mov->tracks[src_trk].timescale);
2678  }
2679  }
2680 
2681  mov_write_mvhd_tag(pb, mov);
2682  if (mov->mode != MODE_MOV && !mov->iods_skip)
2683  mov_write_iods_tag(pb, mov);
2684  for (i = 0; i < mov->nb_streams; i++) {
2685  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2686  mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2687  }
2688  }
2689  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2690  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2691 
2692  if (mov->mode == MODE_PSP)
2693  mov_write_uuidusmt_tag(pb, s);
2694  else
2695  mov_write_udta_tag(pb, mov, s);
2696 
2697  return update_size(pb, pos);
2698 }
2699 
2700 static void param_write_int(AVIOContext *pb, const char *name, int value)
2701 {
2702  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2703 }
2704 
2705 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2706 {
2707  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2708 }
2709 
2710 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2711 {
2712  char buf[150];
2713  len = FFMIN(sizeof(buf) / 2 - 1, len);
2714  ff_data_to_hex(buf, value, len, 0);
2715  buf[2 * len] = '\0';
2716  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2717 }
2718 
2720 {
2721  int64_t pos = avio_tell(pb);
2722  int i;
2723  static const uint8_t uuid[] = {
2724  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2725  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2726  };
2727 
2728  avio_wb32(pb, 0);
2729  ffio_wfourcc(pb, "uuid");
2730  avio_write(pb, uuid, sizeof(uuid));
2731  avio_wb32(pb, 0);
2732 
2733  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2734  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2735  avio_printf(pb, "<head>\n");
2736  if (!mov->exact)
2737  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2739  avio_printf(pb, "</head>\n");
2740  avio_printf(pb, "<body>\n");
2741  avio_printf(pb, "<switch>\n");
2742  for (i = 0; i < mov->nb_streams; i++) {
2743  MOVTrack *track = &mov->tracks[i];
2744  const char *type;
2745  /* track->track_id is initialized in write_moov, and thus isn't known
2746  * here yet */
2747  int track_id = i + 1;
2748 
2749  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2750  type = "video";
2751  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2752  type = "audio";
2753  } else {
2754  continue;
2755  }
2756  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2757  track->enc->bit_rate);
2758  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2759  param_write_int(pb, "trackID", track_id);
2760  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2761  if (track->enc->codec_id == AV_CODEC_ID_H264) {
2762  uint8_t *ptr;
2763  int size = track->enc->extradata_size;
2764  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2765  &size)) {
2766  param_write_hex(pb, "CodecPrivateData",
2767  ptr ? ptr : track->enc->extradata,
2768  size);
2769  av_free(ptr);
2770  }
2771  param_write_string(pb, "FourCC", "H264");
2772  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2773  param_write_string(pb, "FourCC", "WVC1");
2774  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2775  track->enc->extradata_size);
2776  }
2777  param_write_int(pb, "MaxWidth", track->enc->width);
2778  param_write_int(pb, "MaxHeight", track->enc->height);
2779  param_write_int(pb, "DisplayWidth", track->enc->width);
2780  param_write_int(pb, "DisplayHeight", track->enc->height);
2781  } else {
2782  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2783  param_write_string(pb, "FourCC", "AACL");
2784  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2785  param_write_string(pb, "FourCC", "WMAP");
2786  }
2787  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2788  track->enc->extradata_size);
2790  track->enc->codec_id));
2791  param_write_int(pb, "Channels", track->enc->channels);
2792  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2793  param_write_int(pb, "BitsPerSample", 16);
2794  param_write_int(pb, "PacketSize", track->enc->block_align ?
2795  track->enc->block_align : 4);
2796  }
2797  avio_printf(pb, "</%s>\n", type);
2798  }
2799  avio_printf(pb, "</switch>\n");
2800  avio_printf(pb, "</body>\n");
2801  avio_printf(pb, "</smil>\n");
2802 
2803  return update_size(pb, pos);
2804 }
2805 
2807 {
2808  avio_wb32(pb, 16);
2809  ffio_wfourcc(pb, "mfhd");
2810  avio_wb32(pb, 0);
2811  avio_wb32(pb, mov->fragments);
2812  return 0;
2813 }
2814 
2816  MOVTrack *track, int64_t moof_offset)
2817 {
2818  int64_t pos = avio_tell(pb);
2821  if (!track->entry) {
2822  flags |= MOV_TFHD_DURATION_IS_EMPTY;
2823  } else {
2824  flags |= MOV_TFHD_DEFAULT_FLAGS;
2825  }
2827  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2828 
2829  /* Don't set a default sample size, the silverlight player refuses
2830  * to play files with that set. Don't set a default sample duration,
2831  * WMP freaks out if it is set. Don't set a base data offset, PIFF
2832  * file format says it MUST NOT be set. */
2833  if (track->mode == MODE_ISM)
2836 
2837  avio_wb32(pb, 0); /* size placeholder */
2838  ffio_wfourcc(pb, "tfhd");
2839  avio_w8(pb, 0); /* version */
2840  avio_wb24(pb, flags);
2841 
2842  avio_wb32(pb, track->track_id); /* track-id */
2843  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2844  avio_wb64(pb, moof_offset);
2845  if (flags & MOV_TFHD_DEFAULT_DURATION) {
2846  track->default_duration = get_cluster_duration(track, 0);
2847  avio_wb32(pb, track->default_duration);
2848  }
2849  if (flags & MOV_TFHD_DEFAULT_SIZE) {
2850  track->default_size = track->entry ? track->cluster[0].size : 1;
2851  avio_wb32(pb, track->default_size);
2852  } else
2853  track->default_size = -1;
2854 
2855  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2856  track->default_sample_flags =
2857  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2860  avio_wb32(pb, track->default_sample_flags);
2861  }
2862 
2863  return update_size(pb, pos);
2864 }
2865 
2866 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2867 {
2870 }
2871 
2873  MOVTrack *track, int moof_size)
2874 {
2875  int64_t pos = avio_tell(pb);
2876  uint32_t flags = MOV_TRUN_DATA_OFFSET;
2877  int i;
2878 
2879  for (i = 0; i < track->entry; i++) {
2880  if (get_cluster_duration(track, i) != track->default_duration)
2881  flags |= MOV_TRUN_SAMPLE_DURATION;
2882  if (track->cluster[i].size != track->default_size)
2883  flags |= MOV_TRUN_SAMPLE_SIZE;
2884  if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2885  flags |= MOV_TRUN_SAMPLE_FLAGS;
2886  }
2887  if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2888  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2889  if (track->flags & MOV_TRACK_CTTS)
2890  flags |= MOV_TRUN_SAMPLE_CTS;
2891 
2892  avio_wb32(pb, 0); /* size placeholder */
2893  ffio_wfourcc(pb, "trun");
2894  avio_w8(pb, 0); /* version */
2895  avio_wb24(pb, flags);
2896 
2897  avio_wb32(pb, track->entry); /* sample count */
2898  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2899  !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2900  track->track_id != 1)
2901  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2902  else
2903  avio_wb32(pb, moof_size + 8 + track->data_offset +
2904  track->cluster[0].pos); /* data offset */
2905  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2906  avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2907 
2908  for (i = 0; i < track->entry; i++) {
2909  if (flags & MOV_TRUN_SAMPLE_DURATION)
2910  avio_wb32(pb, get_cluster_duration(track, i));
2911  if (flags & MOV_TRUN_SAMPLE_SIZE)
2912  avio_wb32(pb, track->cluster[i].size);
2913  if (flags & MOV_TRUN_SAMPLE_FLAGS)
2914  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2915  if (flags & MOV_TRUN_SAMPLE_CTS)
2916  avio_wb32(pb, track->cluster[i].cts);
2917  }
2918 
2919  return update_size(pb, pos);
2920 }
2921 
2922 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2923 {
2924  int64_t pos = avio_tell(pb);
2925  static const uint8_t uuid[] = {
2926  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2927  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2928  };
2929 
2930  avio_wb32(pb, 0); /* size placeholder */
2931  ffio_wfourcc(pb, "uuid");
2932  avio_write(pb, uuid, sizeof(uuid));
2933  avio_w8(pb, 1);
2934  avio_wb24(pb, 0);
2935  avio_wb64(pb, track->frag_start);
2936  avio_wb64(pb, track->start_dts + track->track_duration -
2937  track->cluster[0].dts);
2938 
2939  return update_size(pb, pos);
2940 }
2941 
2943  MOVTrack *track, int entry)
2944 {
2945  int n = track->nb_frag_info - 1 - entry, i;
2946  int size = 8 + 16 + 4 + 1 + 16*n;
2947  static const uint8_t uuid[] = {
2948  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2949  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2950  };
2951 
2952  if (entry < 0)
2953  return 0;
2954 
2955  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2956  avio_wb32(pb, size);
2957  ffio_wfourcc(pb, "uuid");
2958  avio_write(pb, uuid, sizeof(uuid));
2959  avio_w8(pb, 1);
2960  avio_wb24(pb, 0);
2961  avio_w8(pb, n);
2962  for (i = 0; i < n; i++) {
2963  int index = entry + 1 + i;
2964  avio_wb64(pb, track->frag_info[index].time);
2965  avio_wb64(pb, track->frag_info[index].duration);
2966  }
2967  if (n < mov->ism_lookahead) {
2968  int free_size = 16 * (mov->ism_lookahead - n);
2969  avio_wb32(pb, free_size);
2970  ffio_wfourcc(pb, "free");
2971  ffio_fill(pb, 0, free_size - 8);
2972  }
2973 
2974  return 0;
2975 }
2976 
2978  MOVTrack *track)
2979 {
2980  int64_t pos = avio_tell(pb);
2981  int i;
2982  for (i = 0; i < mov->ism_lookahead; i++) {
2983  /* Update the tfrf tag for the last ism_lookahead fragments,
2984  * nb_frag_info - 1 is the next fragment to be written. */
2985  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2986  }
2987  avio_seek(pb, pos, SEEK_SET);
2988  return 0;
2989 }
2990 
2992  MOVTrack *track, int64_t moof_offset,
2993  int moof_size)
2994 {
2995  int64_t pos = avio_tell(pb);
2996  avio_wb32(pb, 0); /* size placeholder */
2997  ffio_wfourcc(pb, "traf");
2998 
2999  mov_write_tfhd_tag(pb, mov, track, moof_offset);
3000  mov_write_trun_tag(pb, mov, track, moof_size);
3001  if (mov->mode == MODE_ISM) {
3002  mov_write_tfxd_tag(pb, track);
3003 
3004  if (mov->ism_lookahead) {
3005  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3006 
3007  track->tfrf_offset = avio_tell(pb);
3008  avio_wb32(pb, 8 + size);
3009  ffio_wfourcc(pb, "free");
3010  for (i = 0; i < size; i++)
3011  avio_w8(pb, 0);
3012  }
3013  }
3014 
3015  return update_size(pb, pos);
3016 }
3017 
3019  int tracks, int moof_size)
3020 {
3021  int64_t pos = avio_tell(pb);
3022  int i;
3023 
3024  avio_wb32(pb, 0); /* size placeholder */
3025  ffio_wfourcc(pb, "moof");
3026 
3027  mov_write_mfhd_tag(pb, mov);
3028  for (i = 0; i < mov->nb_streams; i++) {
3029  MOVTrack *track = &mov->tracks[i];
3030  if (tracks >= 0 && i != tracks)
3031  continue;
3032  if (!track->entry)
3033  continue;
3034  mov_write_traf_tag(pb, mov, track, pos, moof_size);
3035  }
3036 
3037  return update_size(pb, pos);
3038 }
3039 
3040 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
3041 {
3042  AVIOContext *avio_buf;
3043  int ret, moof_size;
3044 
3045  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3046  return ret;
3047  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3048  moof_size = ffio_close_null_buf(avio_buf);
3049  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3050 }
3051 
3052 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3053 {
3054  int64_t pos = avio_tell(pb);
3055  int i;
3056 
3057  avio_wb32(pb, 0); /* size placeholder */
3058  ffio_wfourcc(pb, "tfra");
3059  avio_w8(pb, 1); /* version */
3060  avio_wb24(pb, 0);
3061 
3062  avio_wb32(pb, track->track_id);
3063  avio_wb32(pb, 0); /* length of traf/trun/sample num */
3064  avio_wb32(pb, track->nb_frag_info);
3065  for (i = 0; i < track->nb_frag_info; i++) {
3066  avio_wb64(pb, track->frag_info[i].time);
3067  avio_wb64(pb, track->frag_info[i].offset);
3068  avio_w8(pb, 1); /* traf number */
3069  avio_w8(pb, 1); /* trun number */
3070  avio_w8(pb, 1); /* sample number */
3071  }
3072 
3073  return update_size(pb, pos);
3074 }
3075 
3077 {
3078  int64_t pos = avio_tell(pb);
3079  int i;
3080 
3081  avio_wb32(pb, 0); /* size placeholder */
3082  ffio_wfourcc(pb, "mfra");
3083  /* An empty mfra atom is enough to indicate to the publishing point that
3084  * the stream has ended. */
3085  if (mov->flags & FF_MOV_FLAG_ISML)
3086  return update_size(pb, pos);
3087 
3088  for (i = 0; i < mov->nb_streams; i++) {
3089  MOVTrack *track = &mov->tracks[i];
3090  if (track->nb_frag_info)
3091  mov_write_tfra_tag(pb, track);
3092  }
3093 
3094  avio_wb32(pb, 16);
3095  ffio_wfourcc(pb, "mfro");
3096  avio_wb32(pb, 0); /* version + flags */
3097  avio_wb32(pb, avio_tell(pb) + 4 - pos);
3098 
3099  return update_size(pb, pos);
3100 }
3101 
3103 {
3104  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3105  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3106 
3107  mov->mdat_pos = avio_tell(pb);
3108  avio_wb32(pb, 0); /* size placeholder*/
3109  ffio_wfourcc(pb, "mdat");
3110  return 0;
3111 }
3112 
3113 /* TODO: This needs to be more general */
3115 {
3116  MOVMuxContext *mov = s->priv_data;
3117  int64_t pos = avio_tell(pb);
3118  int has_h264 = 0, has_video = 0;
3119  int minor = 0x200;
3120  int i;
3121 
3122  for (i = 0; i < s->nb_streams; i++) {
3123  AVStream *st = s->streams[i];
3124  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3125  has_video = 1;
3126  if (st->codec->codec_id == AV_CODEC_ID_H264)
3127  has_h264 = 1;
3128  }
3129 
3130  avio_wb32(pb, 0); /* size */
3131  ffio_wfourcc(pb, "ftyp");
3132 
3133  if (mov->major_brand && strlen(mov->major_brand) >= 4)
3134  ffio_wfourcc(pb, mov->major_brand);
3135  else if (mov->mode == MODE_3GP) {
3136  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3137  minor = has_h264 ? 0x100 : 0x200;
3138  } else if (mov->mode & MODE_3G2) {
3139  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3140  minor = has_h264 ? 0x20000 : 0x10000;
3141  } else if (mov->mode == MODE_PSP)
3142  ffio_wfourcc(pb, "MSNV");
3143  else if (mov->mode == MODE_MP4)
3144  ffio_wfourcc(pb, "isom");
3145  else if (mov->mode == MODE_IPOD)
3146  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3147  else if (mov->mode == MODE_ISM)
3148  ffio_wfourcc(pb, "isml");
3149  else if (mov->mode == MODE_F4V)
3150  ffio_wfourcc(pb, "f4v ");
3151  else
3152  ffio_wfourcc(pb, "qt ");
3153 
3154  avio_wb32(pb, minor);
3155 
3156  if (mov->mode == MODE_MOV)
3157  ffio_wfourcc(pb, "qt ");
3158  else if (mov->mode == MODE_ISM) {
3159  ffio_wfourcc(pb, "piff");
3160  ffio_wfourcc(pb, "iso2");
3161  } else {
3162  ffio_wfourcc(pb, "isom");
3163  ffio_wfourcc(pb, "iso2");
3164  if (has_h264)
3165  ffio_wfourcc(pb, "avc1");
3166  }
3167 
3168  if (mov->mode == MODE_3GP)
3169  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3170  else if (mov->mode & MODE_3G2)
3171  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3172  else if (mov->mode == MODE_PSP)
3173  ffio_wfourcc(pb, "MSNV");
3174  else if (mov->mode == MODE_MP4)
3175  ffio_wfourcc(pb, "mp41");
3176  return update_size(pb, pos);
3177 }
3178 
3180 {
3181  AVStream *video_st = s->streams[0];
3182  AVCodecContext *video_codec = s->streams[0]->codec;
3183  AVCodecContext *audio_codec = s->streams[1]->codec;
3184  int audio_rate = audio_codec->sample_rate;
3185  // TODO: should be avg_frame_rate
3186  int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3187  int audio_kbitrate = audio_codec->bit_rate / 1000;
3188  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3189 
3190  avio_wb32(pb, 0x94); /* size */
3191  ffio_wfourcc(pb, "uuid");
3192  ffio_wfourcc(pb, "PROF");
3193 
3194  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3195  avio_wb32(pb, 0xbb88695c);
3196  avio_wb32(pb, 0xfac9c740);
3197 
3198  avio_wb32(pb, 0x0); /* ? */
3199  avio_wb32(pb, 0x3); /* 3 sections ? */
3200 
3201  avio_wb32(pb, 0x14); /* size */
3202  ffio_wfourcc(pb, "FPRF");
3203  avio_wb32(pb, 0x0); /* ? */
3204  avio_wb32(pb, 0x0); /* ? */
3205  avio_wb32(pb, 0x0); /* ? */
3206 
3207  avio_wb32(pb, 0x2c); /* size */
3208  ffio_wfourcc(pb, "APRF"); /* audio */
3209  avio_wb32(pb, 0x0);
3210  avio_wb32(pb, 0x2); /* TrackID */
3211  ffio_wfourcc(pb, "mp4a");
3212  avio_wb32(pb, 0x20f);
3213  avio_wb32(pb, 0x0);
3214  avio_wb32(pb, audio_kbitrate);
3215  avio_wb32(pb, audio_kbitrate);
3216  avio_wb32(pb, audio_rate);
3217  avio_wb32(pb, audio_codec->channels);
3218 
3219  avio_wb32(pb, 0x34); /* size */
3220  ffio_wfourcc(pb, "VPRF"); /* video */
3221  avio_wb32(pb, 0x0);
3222  avio_wb32(pb, 0x1); /* TrackID */
3223  if (video_codec->codec_id == AV_CODEC_ID_H264) {
3224  ffio_wfourcc(pb, "avc1");
3225  avio_wb16(pb, 0x014D);
3226  avio_wb16(pb, 0x0015);
3227  } else {
3228  ffio_wfourcc(pb, "mp4v");
3229  avio_wb16(pb, 0x0000);
3230  avio_wb16(pb, 0x0103);
3231  }
3232  avio_wb32(pb, 0x0);
3233  avio_wb32(pb, video_kbitrate);
3234  avio_wb32(pb, video_kbitrate);
3235  avio_wb32(pb, frame_rate);
3236  avio_wb32(pb, frame_rate);
3237  avio_wb16(pb, video_codec->width);
3238  avio_wb16(pb, video_codec->height);
3239  avio_wb32(pb, 0x010001); /* ? */
3240 }
3241 
3242 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3243 {
3244  uint32_t c = -1;
3245  int i, closed_gop = 0;
3246 
3247  for (i = 0; i < pkt->size - 4; i++) {
3248  c = (c << 8) + pkt->data[i];
3249  if (c == 0x1b8) { // gop
3250  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3251  } else if (c == 0x100) { // pic
3252  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3253  if (!temp_ref || closed_gop) // I picture is not reordered
3254  *flags = MOV_SYNC_SAMPLE;
3255  else
3256  *flags = MOV_PARTIAL_SYNC_SAMPLE;
3257  break;
3258  }
3259  }
3260  return 0;
3261 }
3262 
3263 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3264 {
3265  const uint8_t *start, *next, *end = pkt->data + pkt->size;
3266  int seq = 0, entry = 0;
3267  int key = pkt->flags & AV_PKT_FLAG_KEY;
3268  start = find_next_marker(pkt->data, end);
3269  for (next = start; next < end; start = next) {
3270  next = find_next_marker(start + 4, end);
3271  switch (AV_RB32(start)) {
3272  case VC1_CODE_SEQHDR:
3273  seq = 1;
3274  break;
3275  case VC1_CODE_ENTRYPOINT:
3276  entry = 1;
3277  break;
3278  case VC1_CODE_SLICE:
3279  trk->vc1_info.slices = 1;
3280  break;
3281  }
3282  }
3283  if (!trk->entry && !fragment) {
3284  /* First packet in first fragment */
3285  trk->vc1_info.first_packet_seq = seq;
3286  trk->vc1_info.first_packet_entry = entry;
3287  } else if ((seq && !trk->vc1_info.packet_seq) ||
3288  (entry && !trk->vc1_info.packet_entry)) {
3289  int i;
3290  for (i = 0; i < trk->entry; i++)
3291  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3292  trk->has_keyframes = 0;
3293  if (seq)
3294  trk->vc1_info.packet_seq = 1;
3295  if (entry)
3296  trk->vc1_info.packet_entry = 1;
3297  if (!fragment) {
3298  /* First fragment */
3299  if ((!seq || trk->vc1_info.first_packet_seq) &&
3300  (!entry || trk->vc1_info.first_packet_entry)) {
3301  /* First packet had the same headers as this one, readd the
3302  * sync sample flag. */
3303  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3304  trk->has_keyframes = 1;
3305  }
3306  }
3307  }
3308  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3309  key = seq && entry;
3310  else if (trk->vc1_info.packet_seq)
3311  key = seq;
3312  else if (trk->vc1_info.packet_entry)
3313  key = entry;
3314  if (key) {
3315  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3316  trk->has_keyframes++;
3317  }
3318 }
3319 
3321 {
3322  MOVMuxContext *mov = s->priv_data;
3323  int i, first_track = -1;
3324  int64_t mdat_size = 0;
3325 
3326  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3327  return 0;
3328 
3329  if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3330  int64_t pos = avio_tell(s->pb);
3331  uint8_t *buf;
3332  int buf_size, moov_size;
3333 
3334  for (i = 0; i < mov->nb_streams; i++)
3335  if (!mov->tracks[i].entry)
3336  break;
3337  /* Don't write the initial moov unless all tracks have data */
3338  if (i < mov->nb_streams)
3339  return 0;
3340 
3341  moov_size = get_moov_size(s);
3342  for (i = 0; i < mov->nb_streams; i++)
3343  mov->tracks[i].data_offset = pos + moov_size + 8;
3344 
3345  mov_write_moov_tag(s->pb, mov, s);
3346 
3347  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3348  mov->mdat_buf = NULL;
3349  avio_wb32(s->pb, buf_size + 8);
3350  ffio_wfourcc(s->pb, "mdat");
3351  avio_write(s->pb, buf, buf_size);
3352  av_free(buf);
3353 
3354  mov->fragments++;
3355  mov->mdat_size = 0;
3356  for (i = 0; i < mov->nb_streams; i++) {
3357  if (mov->tracks[i].entry)
3358  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3359  mov->tracks[i].track_duration -
3360  mov->tracks[i].cluster[0].dts;
3361  mov->tracks[i].entry = 0;
3362  }
3363  avio_flush(s->pb);
3364  return 0;
3365  }
3366 
3367  for (i = 0; i < mov->nb_streams; i++) {
3368  MOVTrack *track = &mov->tracks[i];
3369  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3370  track->data_offset = 0;
3371  else
3372  track->data_offset = mdat_size;
3373  if (!track->mdat_buf)
3374  continue;
3375  mdat_size += avio_tell(track->mdat_buf);
3376  if (first_track < 0)
3377  first_track = i;
3378  }
3379 
3380  if (!mdat_size)
3381  return 0;
3382 
3383  for (i = 0; i < mov->nb_streams; i++) {
3384  MOVTrack *track = &mov->tracks[i];
3385  int buf_size, write_moof = 1, moof_tracks = -1;
3386  uint8_t *buf;
3387  int64_t duration = 0;
3388 
3389  if (track->entry)
3390  duration = track->start_dts + track->track_duration -
3391  track->cluster[0].dts;
3392  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3393  if (!track->mdat_buf)
3394  continue;
3395  mdat_size = avio_tell(track->mdat_buf);
3396  moof_tracks = i;
3397  } else {
3398  write_moof = i == first_track;
3399  }
3400 
3401  if (write_moof) {
3402  MOVFragmentInfo *info;
3403  avio_flush(s->pb);
3404  track->nb_frag_info++;
3405  if (track->nb_frag_info >= track->frag_info_capacity) {
3406  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3407  if (av_reallocp_array(&track->frag_info,
3408  new_capacity,
3409  sizeof(*track->frag_info)))
3410  return AVERROR(ENOMEM);
3411  track->frag_info_capacity = new_capacity;
3412  }
3413  info = &track->frag_info[track->nb_frag_info - 1];
3414  info->offset = avio_tell(s->pb);
3415  info->time = mov->tracks[i].frag_start;
3416  info->duration = duration;
3417  mov_write_tfrf_tags(s->pb, mov, track);
3418 
3419  mov_write_moof_tag(s->pb, mov, moof_tracks);
3420  info->tfrf_offset = track->tfrf_offset;
3421  mov->fragments++;
3422 
3423  avio_wb32(s->pb, mdat_size + 8);
3424  ffio_wfourcc(s->pb, "mdat");
3425  }
3426 
3427  if (track->entry)
3428  track->frag_start += duration;
3429  track->entry = 0;
3430  if (!track->mdat_buf)
3431  continue;
3432  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3433  track->mdat_buf = NULL;
3434 
3435  avio_write(s->pb, buf, buf_size);
3436  av_free(buf);
3437  }
3438 
3439  mov->mdat_size = 0;
3440 
3441  avio_flush(s->pb);
3442  return 0;
3443 }
3444 
3446 {
3447  MOVMuxContext *mov = s->priv_data;
3448  AVIOContext *pb = s->pb;
3449  MOVTrack *trk = &mov->tracks[pkt->stream_index];
3450  AVCodecContext *enc = trk->enc;
3451  unsigned int samples_in_chunk = 0;
3452  int size = pkt->size;
3453  uint8_t *reformatted_data = NULL;
3454 
3455  if (trk->entry) {
3456  int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3457  if (duration < 0 || duration > INT_MAX) {
3458  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3459  duration, pkt->dts
3460  );
3461 
3462  pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3463  pkt->pts = AV_NOPTS_VALUE;
3464  }
3465  if (pkt->duration < 0) {
3466  av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3467  return AVERROR(EINVAL);
3468  }
3469  }
3470  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3471  int ret;
3472  if (mov->fragments > 0) {
3473  if (!trk->mdat_buf) {
3474  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3475  return ret;
3476  }
3477  pb = trk->mdat_buf;
3478  } else {
3479  if (!mov->mdat_buf) {
3480  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3481  return ret;
3482  }
3483  pb = mov->mdat_buf;
3484  }
3485  }
3486 
3487  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3488  /* We must find out how many AMR blocks there are in one packet */
3489  static uint16_t packed_size[16] =
3490  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3491  int len = 0;
3492 
3493  while (len < size && samples_in_chunk < 100) {
3494  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3495  samples_in_chunk++;
3496  }
3497  if (samples_in_chunk > 1) {
3498  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3499  return -1;
3500  }
3501  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3503  samples_in_chunk = enc->frame_size;
3504  } else if (trk->sample_size)
3505  samples_in_chunk = size / trk->sample_size;
3506  else
3507  samples_in_chunk = 1;
3508 
3509  /* copy extradata if it exists */
3510  if (trk->vos_len == 0 && enc->extradata_size > 0) {
3511  trk->vos_len = enc->extradata_size;
3512  trk->vos_data = av_malloc(trk->vos_len);
3513  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3514  }
3515 
3516  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3517  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3518  if (!s->streams[pkt->stream_index]->nb_frames) {
3519  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3520  "use audio bitstream filter 'aac_adtstoasc' to fix it "
3521  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3522  return -1;
3523  }
3524  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3525  }
3526  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3527  /* from x264 or from bytestream h264 */
3528  /* nal reformating needed */
3529  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3530  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3531  &size);
3532  avio_write(pb, reformatted_data, size);
3533  } else {
3534  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3535  }
3536  } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3537  (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3538  /* extradata is Annex B, assume the bitstream is too and convert it */
3539  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3540  ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3541  avio_write(pb, reformatted_data, size);
3542  } else {
3543  size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3544  }
3545  } else {
3546  avio_write(pb, pkt->data, size);
3547  }
3548 
3549  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3550  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3551  /* copy frame to create needed atoms */
3552  trk->vos_len = size;
3553  trk->vos_data = av_malloc(size);
3554  if (!trk->vos_data)
3555  return AVERROR(ENOMEM);
3556  memcpy(trk->vos_data, pkt->data, size);
3557  }
3558 
3559  if (trk->entry >= trk->cluster_capacity) {
3560  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3561  if (av_reallocp_array(&trk->cluster, new_capacity,
3562  sizeof(*trk->cluster)))
3563  return AVERROR(ENOMEM);
3564  trk->cluster_capacity = new_capacity;
3565  }
3566 
3567  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3568  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3569  trk->cluster[trk->entry].chunkNum = 0;
3570  trk->cluster[trk->entry].size = size;
3571  trk->cluster[trk->entry].entries = samples_in_chunk;
3572  trk->cluster[trk->entry].dts = pkt->dts;
3573  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3574  /* First packet of a new fragment. We already wrote the duration
3575  * of the last packet of the previous fragment based on track_duration,
3576  * which might not exactly match our dts. Therefore adjust the dts
3577  * of this packet to be what the previous packets duration implies. */
3578  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3579  }
3580  if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3581  trk->cluster[trk->entry].dts = trk->start_dts = 0;
3582  }
3583  if (trk->start_dts == AV_NOPTS_VALUE)
3584  trk->start_dts = pkt->dts;
3585  trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3586  trk->last_sample_is_subtitle_end = 0;
3587 
3588  if (pkt->pts == AV_NOPTS_VALUE) {
3589  av_log(s, AV_LOG_WARNING, "pts has no value\n");
3590  pkt->pts = pkt->dts;
3591  }
3592  if (pkt->dts != pkt->pts)
3593  trk->flags |= MOV_TRACK_CTTS;
3594  trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3595  trk->cluster[trk->entry].flags = 0;
3596  if (enc->codec_id == AV_CODEC_ID_VC1) {
3597  mov_parse_vc1_frame(pkt, trk, mov->fragments);
3598  } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3599  if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3600  trk->entry > 0) { // force sync sample for the first key frame
3601  mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3602  if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3603  trk->flags |= MOV_TRACK_STPS;
3604  } else {
3605  trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3606  }
3607  if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3608  trk->has_keyframes++;
3609  }
3610  trk->entry++;
3611  trk->sample_count += samples_in_chunk;
3612  mov->mdat_size += size;
3613 
3614  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3615  ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3616  reformatted_data, size);
3617  av_free(reformatted_data);
3618  return 0;
3619 }
3620 
3622 {
3623  MOVMuxContext *mov = s->priv_data;
3624  MOVTrack *trk = &mov->tracks[pkt->stream_index];
3625  AVCodecContext *enc = trk->enc;
3626  int64_t frag_duration = 0;
3627  int size = pkt->size;
3628 
3629  if (!pkt->size)
3630  return 0; /* Discard 0 sized packets */
3631 
3632  if (trk->entry && pkt->stream_index < s->nb_streams)
3633  frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3634  s->streams[pkt->stream_index]->time_base,
3635  AV_TIME_BASE_Q);
3636  if ((mov->max_fragment_duration &&
3637  frag_duration >= mov->max_fragment_duration) ||
3638  (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3639  (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3640  enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3641  trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3642  if (frag_duration >= mov->min_fragment_duration)
3643  mov_flush_fragment(s);
3644  }
3645 
3646  return ff_mov_write_packet(s, pkt);
3647 }
3648 
3650  int stream_index,
3651  int64_t dts) {
3652  AVPacket end;
3653  uint8_t data[2] = {0};
3654  int ret;
3655 
3656  av_init_packet(&end);
3657  end.size = sizeof(data);
3658  end.data = data;
3659  end.pts = dts;
3660  end.dts = dts;
3661  end.duration = 0;
3662  end.stream_index = stream_index;
3663 
3664  ret = mov_write_single_packet(s, &end);
3665  av_free_packet(&end);
3666 
3667  return ret;
3668 }
3669 
3671 {
3672  if (!pkt) {
3673  mov_flush_fragment(s);
3674  return 1;
3675  } else {
3676  int i;
3677  MOVMuxContext *mov = s->priv_data;
3678 
3679  if (!pkt->size) return 0; /* Discard 0 sized packets */
3680 
3681  /*
3682  * Subtitles require special handling.
3683  *
3684  * 1) For full complaince, every track must have a sample at
3685  * dts == 0, which is rarely true for subtitles. So, as soon
3686  * as we see any packet with dts > 0, write an empty subtitle
3687  * at dts == 0 for any subtitle track with no samples in it.
3688  *
3689  * 2) For each subtitle track, check if the current packet's
3690  * dts is past the duration of the last subtitle sample. If
3691  * so, we now need to write an end sample for that subtitle.
3692  *
3693  * This must be done conditionally to allow for subtitles that
3694  * immediately replace each other, in which case an end sample
3695  * is not needed, and is, in fact, actively harmful.
3696  *
3697  * 3) See mov_write_trailer for how the final end sample is
3698  * handled.
3699  */
3700  for (i = 0; i < mov->nb_streams; i++) {
3701  MOVTrack *trk = &mov->tracks[i];
3702  int ret;
3703 
3704  if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3705  trk->track_duration < pkt->dts &&
3706  (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3708  if (ret < 0) return ret;
3709  trk->last_sample_is_subtitle_end = 1;
3710  }
3711  }
3712 
3713  return mov_write_single_packet(s, pkt);
3714  }
3715 }
3716 
3717 // QuickTime chapters involve an additional text track with the chapter names
3718 // as samples, and a tref pointing from the other tracks to the chapter one.
3719 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3720 {
3721  AVIOContext *pb;
3722 
3723  MOVMuxContext *mov = s->priv_data;
3724  MOVTrack *track = &mov->tracks[tracknum];
3725  AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3726  int i, len;
3727 
3728  track->mode = mov->mode;
3729  track->tag = MKTAG('t','e','x','t');
3730  track->timescale = MOV_TIMESCALE;
3731  track->enc = avcodec_alloc_context3(NULL);
3732  if (!track->enc)
3733  return AVERROR(ENOMEM);
3735 #if 0
3736  // These properties are required to make QT recognize the chapter track
3737  uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3738  if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3739  return AVERROR(ENOMEM);
3740  memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3741 #else
3742  if (avio_open_dyn_buf(&pb) >= 0) {
3743  int size;
3744  uint8_t *buf;
3745 
3746  /* Stub header (usually for Quicktime chapter track) */
3747  // TextSampleEntry
3748  avio_wb32(pb, 0x01); // displayFlags
3749  avio_w8(pb, 0x00); // horizontal justification
3750  avio_w8(pb, 0x00); // vertical justification
3751  avio_w8(pb, 0x00); // bgColourRed
3752  avio_w8(pb, 0x00); // bgColourGreen
3753  avio_w8(pb, 0x00); // bgColourBlue
3754  avio_w8(pb, 0x00); // bgColourAlpha
3755  // BoxRecord
3756  avio_wb16(pb, 0x00); // defTextBoxTop
3757  avio_wb16(pb, 0x00); // defTextBoxLeft
3758  avio_wb16(pb, 0x00); // defTextBoxBottom
3759  avio_wb16(pb, 0x00); // defTextBoxRight
3760  // StyleRecord
3761  avio_wb16(pb, 0x00); // startChar
3762  avio_wb16(pb, 0x00); // endChar
3763  avio_wb16(pb, 0x01); // fontID
3764  avio_w8(pb, 0x00); // fontStyleFlags
3765  avio_w8(pb, 0x00); // fontSize
3766  avio_w8(pb, 0x00); // fgColourRed
3767  avio_w8(pb, 0x00); // fgColourGreen
3768  avio_w8(pb, 0x00); // fgColourBlue
3769  avio_w8(pb, 0x00); // fgColourAlpha
3770  // FontTableBox
3771  avio_wb32(pb, 0x0D); // box size
3772  ffio_wfourcc(pb, "ftab"); // box atom name
3773  avio_wb16(pb, 0x01); // entry count
3774  // FontRecord
3775  avio_wb16(pb, 0x01); // font ID
3776  avio_w8(pb, 0x00); // font name length
3777 
3778  if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3779  track->enc->extradata = buf;
3780  track->enc->extradata_size = size;
3781  } else {
3782  av_freep(&buf);
3783  }
3784  }
3785 #endif
3786 
3787  for (i = 0; i < s->nb_chapters; i++) {
3788  AVChapter *c = s->chapters[i];
3789  AVDictionaryEntry *t;
3790 
3791  int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3792  pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3793  pkt.duration = end - pkt.dts;
3794 
3795  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3796  const char encd[12] = {
3797  0x00, 0x00, 0x00, 0x0C,
3798  'e', 'n', 'c', 'd',
3799  0x00, 0x00, 0x01, 0x00 };
3800  len = strlen(t->value);
3801  pkt.size = len + 2 + 12;
3802  pkt.data = av_malloc(pkt.size);
3803  if (!pkt.data)
3804  return AVERROR(ENOMEM);
3805  AV_WB16(pkt.data, len);
3806  memcpy(pkt.data + 2, t->value, len);
3807  memcpy(pkt.data + len + 2, encd, sizeof(encd));
3809  av_freep(&pkt.data);
3810  }
3811  }
3812 
3813  return 0;
3814 }
3815 
3816 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3817 {
3818  int ret;
3819  MOVMuxContext *mov = s->priv_data;
3820  MOVTrack *track = &mov->tracks[index];
3821  AVStream *src_st = s->streams[src_index];
3822  AVTimecode tc;
3823  AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3824  AVRational rate = find_fps(s, src_st);
3825 
3826  /* compute the frame number */
3827  ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3828  if (ret < 0)
3829  return ret;
3830 
3831  /* tmcd track based on video stream */
3832  track->mode = mov->mode;
3833  track->tag = MKTAG('t','m','c','d');
3834  track->src_track = src_index;
3835  track->timescale = mov->tracks[src_index].timescale;
3838 
3839  /* set st to src_st for metadata access*/
3840  track->st = src_st;
3841 
3842  /* encode context: tmcd data stream */
3843  track->enc = avcodec_alloc_context3(NULL);
3844  track->enc->codec_type = AVMEDIA_TYPE_DATA;
3845  track->enc->codec_tag = track->tag;
3846  track->enc->time_base = av_inv_q(rate);
3847 
3848  /* the tmcd track just contains one packet with the frame number */
3849  pkt.data = av_malloc(pkt.size);
3850  AV_WB32(pkt.data, tc.start);
3851  ret = ff_mov_write_packet(s, &pkt);
3852  av_free(pkt.data);
3853  return ret;
3854 }
3855 
3856 /*
3857  * st->disposition controls the "enabled" flag in the tkhd tag.
3858  * QuickTime will not play a track if it is not enabled. So make sure
3859  * that one track of each type (audio, video, subtitle) is enabled.
3860  *
3861  * Subtitles are special. For audio and video, setting "enabled" also
3862  * makes the track "default" (i.e. it is rendered when played). For
3863  * subtitles, an "enabled" subtitle is not rendered by default, but
3864  * if no subtitle is enabled, the subtitle menu in QuickTime will be
3865  * empty!
3866  */
3868 {
3869  MOVMuxContext *mov = s->priv_data;
3870  int i;
3871  int enabled[AVMEDIA_TYPE_NB];
3872  int first[AVMEDIA_TYPE_NB];
3873 
3874  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3875  enabled[i] = 0;
3876  first[i] = -1;
3877  }
3878 
3879  for (i = 0; i < s->nb_streams; i++) {
3880  AVStream *st = s->streams[i];
3881 
3882  if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3883  st->codec->codec_type >= AVMEDIA_TYPE_NB)
3884  continue;
3885 
3886  if (first[st->codec->codec_type] < 0)
3887  first[st->codec->codec_type] = i;
3888  if (st->disposition & AV_DISPOSITION_DEFAULT) {
3889  mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3890  enabled[st->codec->codec_type]++;
3891  }
3892  }
3893 
3894  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3895  switch (i) {
3896  case AVMEDIA_TYPE_VIDEO:
3897  case AVMEDIA_TYPE_AUDIO:
3898  case AVMEDIA_TYPE_SUBTITLE:
3899  if (enabled[i] > 1)
3900  mov->per_stream_grouping = 1;
3901  if (!enabled[i] && first[i] >= 0)
3902  mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3903  break;
3904  }
3905  }
3906 }
3907 
3909 {
3910  MOVMuxContext *mov = s->priv_data;
3911  int i;
3912 
3913  if (mov->chapter_track) {
3914  if (mov->tracks[mov->chapter_track].enc)
3915  av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3916  av_freep(&mov->tracks[mov->chapter_track].enc);
3917  }
3918 
3919  for (i = 0; i < mov->nb_streams; i++) {
3920  if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3921  ff_mov_close_hinting(&mov->tracks[i]);
3922  else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3923  av_freep(&mov->tracks[i].enc);
3924  av_freep(&mov->tracks[i].cluster);
3925  av_freep(&mov->tracks[i].frag_info);
3926 
3927  if (mov->tracks[i].vos_len)
3928  av_freep(&mov->tracks[i].vos_data);
3929  }
3930 
3931  av_freep(&mov->tracks);
3932 }
3933 
3934 static uint32_t rgb_to_yuv(uint32_t rgb)
3935 {
3936  uint8_t r, g, b;
3937  int y, cb, cr;
3938 
3939  r = (rgb >> 16) & 0xFF;
3940  g = (rgb >> 8) & 0xFF;
3941  b = (rgb ) & 0xFF;
3942 
3943  y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3944  cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3945  cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3946 
3947  return (y << 16) | (cr << 8) | cb;
3948 }
3949 
3951  AVStream *st)
3952 {
3953  int i, width = 720, height = 480;
3954  int have_palette = 0, have_size = 0;
3955  uint32_t palette[16];
3956  char *cur = st->codec->extradata;
3957 
3958  while (cur && *cur) {
3959  if (strncmp("palette:", cur, 8) == 0) {
3960  int i, count;
3961  count = sscanf(cur + 8,
3962  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
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  &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3967  &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3968  &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3969  &palette[12], &palette[13], &palette[14], &palette[15]);
3970 
3971  for (i = 0; i < count; i++) {
3972  palette[i] = rgb_to_yuv(palette[i]);
3973  }
3974  have_palette = 1;
3975  } else if (!strncmp("size:", cur, 5)) {
3976  sscanf(cur + 5, "%dx%d", &width, &height);
3977  have_size = 1;
3978  }
3979  if (have_palette && have_size)
3980  break;
3981  cur += strcspn(cur, "\n\r");
3982  cur += strspn(cur, "\n\r");
3983  }
3984  if (have_palette) {
3985  track->vos_data = av_malloc(16*4);
3986  if (!track->vos_data)
3987  return AVERROR(ENOMEM);
3988  for (i = 0; i < 16; i++) {
3989  AV_WB32(track->vos_data + i * 4, palette[i]);
3990  }
3991  track->vos_len = 16 * 4;
3992  }
3993  st->codec->width = width;
3994  st->codec->height = track->height = height;
3995 
3996  return 0;
3997 }
3998 
4000 {
4001  AVIOContext *pb = s->pb;
4002  MOVMuxContext *mov = s->priv_data;
4003  AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4004  int i, ret, hint_track = 0, tmcd_track = 0;
4005 
4006  mov->fc = s;
4007 
4008  /* Default mode == MP4 */
4009  mov->mode = MODE_MP4;
4010 
4011  if (s->oformat) {
4012  if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4013  else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4014  else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4015  else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4016  else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4017  else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4018  else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4019  }
4020 
4021  if (s->flags & AVFMT_FLAG_BITEXACT)
4022  mov->exact = 1;
4023 
4024  /* Set the FRAGMENT flag if any of the fragmentation methods are
4025  * enabled. */
4026  if (mov->max_fragment_duration || mov->max_fragment_size ||
4027  mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4030  mov->flags |= FF_MOV_FLAG_FRAGMENT;
4031 
4032  /* Set other implicit flags immediately */
4033  if (mov->mode == MODE_ISM)
4036 
4037  /* faststart: moov at the beginning of the file, if supported */
4038  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4039  if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
4040  (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
4041  av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
4042  "with fragmentation and custom IO, disabling faststart\n");
4043  mov->flags &= ~FF_MOV_FLAG_FASTSTART;
4044  } else
4045  mov->reserved_moov_size = -1;
4046  }
4047 
4048  if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
4049  s->avoid_negative_ts = 2;
4050  }
4051 
4052  /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4053  * is enabled, we don't support non-seekable output at all. */
4054  if (!s->pb->seekable &&
4055  (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4056  av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4057  return AVERROR(EINVAL);
4058  }
4059 
4060  mov_write_ftyp_tag(pb,s);
4061  if (mov->mode == MODE_PSP) {
4062  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4063  for (i = 0; i < s->nb_streams; i++) {
4064  AVStream *st = s->streams[i];
4065  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4066  video_streams_nb++;
4067  else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4068  audio_streams_nb++;
4069  else
4070  other_streams_nb++;
4071  }
4072 
4073  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4074  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4075  return AVERROR(EINVAL);
4076  }
4077  mov_write_uuidprof_tag(pb, s);
4078  }
4079 
4080  mov->nb_streams = s->nb_streams;
4081  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4082  mov->chapter_track = mov->nb_streams++;
4083 
4084  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4085  /* Add hint tracks for each audio and video stream */
4086  hint_track = mov->nb_streams;
4087  for (i = 0; i < s->nb_streams; i++) {
4088  AVStream *st = s->streams[i];
4089  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4091  mov->nb_streams++;
4092  }
4093  }
4094  }
4095 
4096  if (mov->mode == MODE_MOV) {
4097  tmcd_track = mov->nb_streams;
4098 
4099  /* +1 tmcd track for each video stream with a timecode */
4100  for (i = 0; i < s->nb_streams; i++) {
4101  AVStream *st = s->streams[i];
4102  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4103  (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4104  mov->nb_meta_tmcd++;
4105  }
4106 
4107  /* check if there is already a tmcd track to remux */
4108  if (mov->nb_meta_tmcd) {
4109  for (i = 0; i < s->nb_streams; i++) {
4110  AVStream *st = s->streams[i];
4111  if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4112  av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4113  "so timecode metadata are now ignored\n");
4114  mov->nb_meta_tmcd = 0;
4115  }
4116  }
4117  }
4118 
4119  mov->nb_streams += mov->nb_meta_tmcd;
4120  }
4121 
4122  // Reserve an extra stream for chapters for the case where chapters
4123  // are written in the trailer
4124  mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4125  if (!mov->tracks)
4126  return AVERROR(ENOMEM);
4127 
4128  for (i = 0; i < s->nb_streams; i++) {
4129  AVStream *st= s->streams[i];
4130  MOVTrack *track= &mov->tracks[i];
4131  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4132 
4133  track->st = st;
4134  track->enc = st->codec;
4135  track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4136  if (track->language < 0)
4137  track->language = 0;
4138  track->mode = mov->mode;
4139  track->tag = mov_find_codec_tag(s, track);
4140  if (!track->tag) {
4141  av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4142  "codec not currently supported in container\n",
4143  avcodec_get_name(st->codec->codec_id), i);
4144  ret = AVERROR(EINVAL);
4145  goto error;
4146  }
4147  /* If hinting of this track is enabled by a later hint track,
4148  * this is updated. */
4149  track->hint_track = -1;
4150  track->start_dts = AV_NOPTS_VALUE;
4151  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4152  if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4153  track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4154  track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4155  if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4156  av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4157  ret = AVERROR(EINVAL);
4158  goto error;
4159  }
4160  track->height = track->tag >> 24 == 'n' ? 486 : 576;
4161  }
4162  if (mov->video_track_timescale) {
4163  track->timescale = mov->video_track_timescale;
4164  } else {
4165  track->timescale = st->time_base.den;
4166  while(track->timescale < 10000)
4167  track->timescale *= 2;
4168  }
4169  if (st->codec->width > 65535 || st->codec->height > 65535) {
4170  av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4171  ret = AVERROR(EINVAL);
4172  goto error;
4173  }
4174  if (track->mode == MODE_MOV && track->timescale > 100000)
4176  "WARNING codec timebase is very high. If duration is too long,\n"
4177  "file may not be playable by quicktime. Specify a shorter timebase\n"
4178  "or choose different container.\n");
4179  } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4180  track->timescale = st->codec->sample_rate;
4181  if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4182  av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4183  track->audio_vbr = 1;
4184  }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4186  st->codec->codec_id == AV_CODEC_ID_ILBC){
4187  if (!st->codec->block_align) {
4188  av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4189  ret = AVERROR(EINVAL);
4190  goto error;
4191  }
4192  track->sample_size = st->codec->block_align;
4193  }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4194  track->audio_vbr = 1;
4195  }else{
4196  track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4197  }
4198  if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4200  track->audio_vbr = 1;
4201  }
4202  if (track->mode != MODE_MOV &&
4203  track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4204  av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4205  i, track->enc->sample_rate);
4206  ret = AVERROR(EINVAL);
4207  goto error;
4208  }
4209  } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4210  track->timescale = st->time_base.den;
4211  } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4212  track->timescale = st->time_base.den;
4213  } else {
4214  track->timescale =