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movenc.c
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1 /*
2  * MOV, 3GP, MP4 muxer
3  * Copyright (c) 2003 Thomas Raivio
4  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <stdint.h>
25 #include <inttypes.h>
26 
27 #include "movenc.h"
28 #include "avformat.h"
29 #include "avio_internal.h"
30 #include "riff.h"
31 #include "avio.h"
32 #include "isom.h"
33 #include "avc.h"
34 #include "libavcodec/ac3_parser.h"
35 #include "libavcodec/get_bits.h"
36 #include "libavcodec/put_bits.h"
37 #include "libavcodec/vc1_common.h"
38 #include "libavcodec/raw.h"
39 #include "internal.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/intfloat.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/libm.h"
44 #include "libavutil/opt.h"
45 #include "libavutil/dict.h"
46 #include "libavutil/pixdesc.h"
47 #include "libavutil/timecode.h"
48 #include "libavutil/color_utils.h"
49 #include "hevc.h"
50 #include "rtpenc.h"
51 #include "mov_chan.h"
52 
53 static const AVOption options[] = {
54  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55  { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56  { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
57  { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58  { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59  { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60  { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61  { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62  { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63  { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64  { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
65  { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
66  { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
67  { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
68  { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
69  { "write_colr", "Write colr atom (Experimental, may be renamed or changed, do not use from scripts)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
70  { "write_gama", "Write deprecated gama atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_GAMA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
71  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
72  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
73  { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
74  { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
75  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
76  { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
77  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
78  { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
79  { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
80  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
81  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
82  { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
83  { "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM},
84  { NULL },
85 };
86 
87 #define MOV_CLASS(flavor)\
88 static const AVClass flavor ## _muxer_class = {\
89  .class_name = #flavor " muxer",\
90  .item_name = av_default_item_name,\
91  .option = options,\
92  .version = LIBAVUTIL_VERSION_INT,\
93 };
94 
95 static int get_moov_size(AVFormatContext *s);
96 
97 static int utf8len(const uint8_t *b)
98 {
99  int len = 0;
100  int val;
101  while (*b) {
102  GET_UTF8(val, *b++, return -1;)
103  len++;
104  }
105  return len;
106 }
107 
108 //FIXME support 64 bit variant with wide placeholders
109 static int64_t update_size(AVIOContext *pb, int64_t pos)
110 {
111  int64_t curpos = avio_tell(pb);
112  avio_seek(pb, pos, SEEK_SET);
113  avio_wb32(pb, curpos - pos); /* rewrite size */
114  avio_seek(pb, curpos, SEEK_SET);
115 
116  return curpos - pos;
117 }
118 
119 static int co64_required(const MOVTrack *track)
120 {
121  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
122  return 1;
123  return 0;
124 }
125 
126 /* Chunk offset atom */
127 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
128 {
129  int i;
130  int mode64 = co64_required(track); // use 32 bit size variant if possible
131  int64_t pos = avio_tell(pb);
132  avio_wb32(pb, 0); /* size */
133  if (mode64)
134  ffio_wfourcc(pb, "co64");
135  else
136  ffio_wfourcc(pb, "stco");
137  avio_wb32(pb, 0); /* version & flags */
138  avio_wb32(pb, track->chunkCount); /* entry count */
139  for (i = 0; i < track->entry; i++) {
140  if (!track->cluster[i].chunkNum)
141  continue;
142  if (mode64 == 1)
143  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
144  else
145  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
146  }
147  return update_size(pb, pos);
148 }
149 
150 /* Sample size atom */
151 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
152 {
153  int equalChunks = 1;
154  int i, j, entries = 0, tst = -1, oldtst = -1;
155 
156  int64_t pos = avio_tell(pb);
157  avio_wb32(pb, 0); /* size */
158  ffio_wfourcc(pb, "stsz");
159  avio_wb32(pb, 0); /* version & flags */
160 
161  for (i = 0; i < track->entry; i++) {
162  tst = track->cluster[i].size / track->cluster[i].entries;
163  if (oldtst != -1 && tst != oldtst)
164  equalChunks = 0;
165  oldtst = tst;
166  entries += track->cluster[i].entries;
167  }
168  if (equalChunks && track->entry) {
169  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
170  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
171  avio_wb32(pb, sSize); // sample size
172  avio_wb32(pb, entries); // sample count
173  } else {
174  avio_wb32(pb, 0); // sample size
175  avio_wb32(pb, entries); // sample count
176  for (i = 0; i < track->entry; i++) {
177  for (j = 0; j < track->cluster[i].entries; j++) {
178  avio_wb32(pb, track->cluster[i].size /
179  track->cluster[i].entries);
180  }
181  }
182  }
183  return update_size(pb, pos);
184 }
185 
186 /* Sample to chunk atom */
187 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
188 {
189  int index = 0, oldval = -1, i;
190  int64_t entryPos, curpos;
191 
192  int64_t pos = avio_tell(pb);
193  avio_wb32(pb, 0); /* size */
194  ffio_wfourcc(pb, "stsc");
195  avio_wb32(pb, 0); // version & flags
196  entryPos = avio_tell(pb);
197  avio_wb32(pb, track->chunkCount); // entry count
198  for (i = 0; i < track->entry; i++) {
199  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
200  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
201  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
202  avio_wb32(pb, 0x1); // sample description index
203  oldval = track->cluster[i].samples_in_chunk;
204  index++;
205  }
206  }
207  curpos = avio_tell(pb);
208  avio_seek(pb, entryPos, SEEK_SET);
209  avio_wb32(pb, index); // rewrite size
210  avio_seek(pb, curpos, SEEK_SET);
211 
212  return update_size(pb, pos);
213 }
214 
215 /* Sync sample atom */
216 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
217 {
218  int64_t curpos, entryPos;
219  int i, index = 0;
220  int64_t pos = avio_tell(pb);
221  avio_wb32(pb, 0); // size
222  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
223  avio_wb32(pb, 0); // version & flags
224  entryPos = avio_tell(pb);
225  avio_wb32(pb, track->entry); // entry count
226  for (i = 0; i < track->entry; i++) {
227  if (track->cluster[i].flags & flag) {
228  avio_wb32(pb, i + 1);
229  index++;
230  }
231  }
232  curpos = avio_tell(pb);
233  avio_seek(pb, entryPos, SEEK_SET);
234  avio_wb32(pb, index); // rewrite size
235  avio_seek(pb, curpos, SEEK_SET);
236  return update_size(pb, pos);
237 }
238 
239 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
240 {
241  avio_wb32(pb, 0x11); /* size */
242  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
243  else ffio_wfourcc(pb, "damr");
244  ffio_wfourcc(pb, "FFMP");
245  avio_w8(pb, 0); /* decoder version */
246 
247  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
248  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
249  avio_w8(pb, 0x01); /* Frames per sample */
250  return 0x11;
251 }
252 
253 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
254 {
255  GetBitContext gbc;
256  PutBitContext pbc;
257  uint8_t buf[3];
258  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
259 
260  if (track->vos_len < 7)
261  return -1;
262 
263  avio_wb32(pb, 11);
264  ffio_wfourcc(pb, "dac3");
265 
266  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
267  fscod = get_bits(&gbc, 2);
268  frmsizecod = get_bits(&gbc, 6);
269  bsid = get_bits(&gbc, 5);
270  bsmod = get_bits(&gbc, 3);
271  acmod = get_bits(&gbc, 3);
272  if (acmod == 2) {
273  skip_bits(&gbc, 2); // dsurmod
274  } else {
275  if ((acmod & 1) && acmod != 1)
276  skip_bits(&gbc, 2); // cmixlev
277  if (acmod & 4)
278  skip_bits(&gbc, 2); // surmixlev
279  }
280  lfeon = get_bits1(&gbc);
281 
282  init_put_bits(&pbc, buf, sizeof(buf));
283  put_bits(&pbc, 2, fscod);
284  put_bits(&pbc, 5, bsid);
285  put_bits(&pbc, 3, bsmod);
286  put_bits(&pbc, 3, acmod);
287  put_bits(&pbc, 1, lfeon);
288  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
289  put_bits(&pbc, 5, 0); // reserved
290 
291  flush_put_bits(&pbc);
292  avio_write(pb, buf, sizeof(buf));
293 
294  return 11;
295 }
296 
297 struct eac3_info {
301 
302  /* Layout of the EC3SpecificBox */
303  /* maximum bitrate */
304  uint16_t data_rate;
305  /* number of independent substreams */
307  struct {
308  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
310  /* bit stream identification 5 bits */
312  /* one bit reserved */
313  /* audio service mixing (not supported yet) 1 bit */
314  /* bit stream mode 3 bits */
316  /* audio coding mode 3 bits */
318  /* sub woofer on 1 bit */
320  /* 3 bits reserved */
321  /* number of dependent substreams associated with this substream 4 bits */
323  /* channel locations of the dependent substream(s), if any, 9 bits */
324  uint16_t chan_loc;
325  /* if there is no dependent substream, then one bit reserved instead */
326  } substream[1]; /* TODO: support 8 independent substreams */
327 };
328 
329 #if CONFIG_AC3_PARSER
330 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
331 {
332  GetBitContext gbc;
333  AC3HeaderInfo tmp, *hdr = &tmp;
334  struct eac3_info *info;
335  int num_blocks;
336 
337  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
338  return AVERROR(ENOMEM);
339  info = track->eac3_priv;
340 
341  init_get_bits(&gbc, pkt->data, pkt->size * 8);
342  if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
343  /* drop the packets until we see a good one */
344  if (!track->entry) {
345  av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
346  return 0;
347  }
348  return AVERROR_INVALIDDATA;
349  }
350 
351  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
352  num_blocks = hdr->num_blocks;
353 
354  if (!info->ec3_done) {
355  /* AC-3 substream must be the first one */
356  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
357  return AVERROR(EINVAL);
358 
359  /* this should always be the case, given that our AC-3 parser
360  * concatenates dependent frames to their independent parent */
362  /* substream ids must be incremental */
363  if (hdr->substreamid > info->num_ind_sub + 1)
364  return AVERROR(EINVAL);
365 
366  if (hdr->substreamid == info->num_ind_sub + 1) {
367  //info->num_ind_sub++;
368  avpriv_request_sample(track->enc, "Multiple independent substreams");
369  return AVERROR_PATCHWELCOME;
370  } else if (hdr->substreamid < info->num_ind_sub ||
371  hdr->substreamid == 0 && info->substream[0].bsid) {
372  info->ec3_done = 1;
373  goto concatenate;
374  }
375  }
376 
377  /* fill the info needed for the "dec3" atom */
378  info->substream[hdr->substreamid].fscod = hdr->sr_code;
379  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
380  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
381  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
382  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
383 
384  /* Parse dependent substream(s), if any */
385  if (pkt->size != hdr->frame_size) {
386  int cumul_size = hdr->frame_size;
387  int parent = hdr->substreamid;
388 
389  while (cumul_size != pkt->size) {
390  int i;
391  init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
392  if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
393  return AVERROR_INVALIDDATA;
395  return AVERROR(EINVAL);
396  cumul_size += hdr->frame_size;
397  info->substream[parent].num_dep_sub++;
398 
399  /* header is parsed up to lfeon, but custom channel map may be needed */
400  /* skip bsid */
401  skip_bits(&gbc, 5);
402  /* skip volume control params */
403  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
404  skip_bits(&gbc, 5); // skip dialog normalization
405  if (get_bits1(&gbc)) {
406  skip_bits(&gbc, 8); // skip compression gain word
407  }
408  }
409  /* get the dependent stream channel map, if exists */
410  if (get_bits1(&gbc))
411  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
412  else
413  info->substream[parent].chan_loc |= hdr->channel_mode;
414  }
415  }
416  }
417 
418 concatenate:
419  if (!info->num_blocks && num_blocks == 6)
420  return pkt->size;
421  else if (info->num_blocks + num_blocks > 6)
422  return AVERROR_INVALIDDATA;
423 
424  if (!info->num_blocks) {
425  int ret;
426  if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
427  return ret;
428  info->num_blocks = num_blocks;
429  return 0;
430  } else {
431  int ret;
432  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
433  return ret;
434  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
435  info->num_blocks += num_blocks;
436  info->pkt.duration += pkt->duration;
437  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
438  return ret;
439  if (info->num_blocks != 6)
440  return 0;
441  av_free_packet(pkt);
442  if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
443  return ret;
444  av_free_packet(&info->pkt);
445  info->num_blocks = 0;
446  }
447 
448  return pkt->size;
449 }
450 #endif
451 
452 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
453 {
454  PutBitContext pbc;
455  uint8_t *buf;
456  struct eac3_info *info;
457  int size, i;
458 
459  if (!track->eac3_priv)
460  return AVERROR(EINVAL);
461 
462  info = track->eac3_priv;
463  size = 2 + 4 * (info->num_ind_sub + 1);
464  buf = av_malloc(size);
465  if (!buf) {
466  size = AVERROR(ENOMEM);
467  goto end;
468  }
469 
470  init_put_bits(&pbc, buf, size);
471  put_bits(&pbc, 13, info->data_rate);
472  put_bits(&pbc, 3, info->num_ind_sub);
473  for (i = 0; i <= info->num_ind_sub; i++) {
474  put_bits(&pbc, 2, info->substream[i].fscod);
475  put_bits(&pbc, 5, info->substream[i].bsid);
476  put_bits(&pbc, 1, 0); /* reserved */
477  put_bits(&pbc, 1, 0); /* asvc */
478  put_bits(&pbc, 3, info->substream[i].bsmod);
479  put_bits(&pbc, 3, info->substream[i].acmod);
480  put_bits(&pbc, 1, info->substream[i].lfeon);
481  put_bits(&pbc, 5, 0); /* reserved */
482  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
483  if (!info->substream[i].num_dep_sub) {
484  put_bits(&pbc, 1, 0); /* reserved */
485  size--;
486  } else {
487  put_bits(&pbc, 9, info->substream[i].chan_loc);
488  }
489  }
490  flush_put_bits(&pbc);
491 
492  avio_wb32(pb, size + 8);
493  ffio_wfourcc(pb, "dec3");
494  avio_write(pb, buf, size);
495 
496  av_free(buf);
497 
498 end:
499  av_free_packet(&info->pkt);
500  av_freep(&track->eac3_priv);
501 
502  return size;
503 }
504 
505 /**
506  * This function writes extradata "as is".
507  * Extradata must be formatted like a valid atom (with size and tag).
508  */
510 {
511  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
512  return track->enc->extradata_size;
513 }
514 
516 {
517  avio_wb32(pb, 10);
518  ffio_wfourcc(pb, "enda");
519  avio_wb16(pb, 1); /* little endian */
520  return 10;
521 }
522 
524 {
525  avio_wb32(pb, 10);
526  ffio_wfourcc(pb, "enda");
527  avio_wb16(pb, 0); /* big endian */
528  return 10;
529 }
530 
531 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
532 {
533  int i = 3;
534  avio_w8(pb, tag);
535  for (; i > 0; i--)
536  avio_w8(pb, (size >> (7 * i)) | 0x80);
537  avio_w8(pb, size & 0x7F);
538 }
539 
540 static unsigned compute_avg_bitrate(MOVTrack *track)
541 {
542  uint64_t size = 0;
543  int i;
544  if (!track->track_duration)
545  return 0;
546  for (i = 0; i < track->entry; i++)
547  size += track->cluster[i].size;
548  return size * 8 * track->timescale / track->track_duration;
549 }
550 
551 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
552 {
553  int64_t pos = avio_tell(pb);
554  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
555  unsigned avg_bitrate;
556 
557  avio_wb32(pb, 0); // size
558  ffio_wfourcc(pb, "esds");
559  avio_wb32(pb, 0); // Version
560 
561  // ES descriptor
562  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
563  avio_wb16(pb, track->track_id);
564  avio_w8(pb, 0x00); // flags (= no flags)
565 
566  // DecoderConfig descriptor
567  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
568 
569  // Object type indication
570  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
571  track->enc->codec_id == AV_CODEC_ID_MP3) &&
572  track->enc->sample_rate > 24000)
573  avio_w8(pb, 0x6B); // 11172-3
574  else
576 
577  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
578  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
579  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
580  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
581  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
582  avio_w8(pb, 0x15); // flags (= Audiostream)
583  else
584  avio_w8(pb, 0x11); // flags (= Visualstream)
585 
586  avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
587 
588  avg_bitrate = compute_avg_bitrate(track);
589  // maxbitrate (FIXME should be max rate in any 1 sec window)
590  avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
591  avio_wb32(pb, avg_bitrate);
592 
593  if (track->vos_len) {
594  // DecoderSpecific info descriptor
595  put_descr(pb, 0x05, track->vos_len);
596  avio_write(pb, track->vos_data, track->vos_len);
597  }
598 
599  // SL descriptor
600  put_descr(pb, 0x06, 1);
601  avio_w8(pb, 0x02);
602  return update_size(pb, pos);
603 }
604 
606 {
607  return codec_id == AV_CODEC_ID_PCM_S24LE ||
608  codec_id == AV_CODEC_ID_PCM_S32LE ||
609  codec_id == AV_CODEC_ID_PCM_F32LE ||
610  codec_id == AV_CODEC_ID_PCM_F64LE;
611 }
612 
614 {
615  return codec_id == AV_CODEC_ID_PCM_S24BE ||
616  codec_id == AV_CODEC_ID_PCM_S32BE ||
617  codec_id == AV_CODEC_ID_PCM_F32BE ||
618  codec_id == AV_CODEC_ID_PCM_F64BE;
619 }
620 
621 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
622 {
623  int ret;
624  int64_t pos = avio_tell(pb);
625  avio_wb32(pb, 0);
626  avio_wl32(pb, track->tag); // store it byteswapped
627  track->enc->codec_tag = av_bswap16(track->tag >> 16);
628  if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
629  return ret;
630  return update_size(pb, pos);
631 }
632 
633 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
634 {
635  int ret;
636  int64_t pos = avio_tell(pb);
637  avio_wb32(pb, 0);
638  ffio_wfourcc(pb, "wfex");
639  if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
640  return ret;
641  return update_size(pb, pos);
642 }
643 
644 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
645 {
646  uint32_t layout_tag, bitmap;
647  int64_t pos = avio_tell(pb);
648 
649  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
650  track->enc->channel_layout,
651  &bitmap);
652  if (!layout_tag) {
653  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
654  "lack of channel information\n");
655  return 0;
656  }
657 
658  if (track->multichannel_as_mono)
659  return 0;
660 
661  avio_wb32(pb, 0); // Size
662  ffio_wfourcc(pb, "chan"); // Type
663  avio_w8(pb, 0); // Version
664  avio_wb24(pb, 0); // Flags
665  avio_wb32(pb, layout_tag); // mChannelLayoutTag
666  avio_wb32(pb, bitmap); // mChannelBitmap
667  avio_wb32(pb, 0); // mNumberChannelDescriptions
668 
669  return update_size(pb, pos);
670 }
671 
672 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
673 {
674  int64_t pos = avio_tell(pb);
675 
676  avio_wb32(pb, 0); /* size */
677  ffio_wfourcc(pb, "wave");
678 
679  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
680  avio_wb32(pb, 12); /* size */
681  ffio_wfourcc(pb, "frma");
682  avio_wl32(pb, track->tag);
683  }
684 
685  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
686  /* useless atom needed by mplayer, ipod, not needed by quicktime */
687  avio_wb32(pb, 12); /* size */
688  ffio_wfourcc(pb, "mp4a");
689  avio_wb32(pb, 0);
690  mov_write_esds_tag(pb, track);
691  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
692  mov_write_enda_tag(pb);
693  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
695  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
696  mov_write_amr_tag(pb, track);
697  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
698  mov_write_ac3_tag(pb, track);
699  } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
700  mov_write_eac3_tag(pb, track);
701  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
702  track->enc->codec_id == AV_CODEC_ID_QDM2) {
703  mov_write_extradata_tag(pb, track);
704  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
706  mov_write_ms_tag(pb, track);
707  }
708 
709  avio_wb32(pb, 8); /* size */
710  avio_wb32(pb, 0); /* null tag */
711 
712  return update_size(pb, pos);
713 }
714 
716 {
717  uint8_t *unescaped;
718  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
719  int unescaped_size, seq_found = 0;
720  int level = 0, interlace = 0;
721  int packet_seq = track->vc1_info.packet_seq;
722  int packet_entry = track->vc1_info.packet_entry;
723  int slices = track->vc1_info.slices;
724  PutBitContext pbc;
725 
726  if (track->start_dts == AV_NOPTS_VALUE) {
727  /* No packets written yet, vc1_info isn't authoritative yet. */
728  /* Assume inline sequence and entry headers. */
729  packet_seq = packet_entry = 1;
731  "moov atom written before any packets, unable to write correct "
732  "dvc1 atom. Set the delay_moov flag to fix this.\n");
733  }
734 
735  unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
736  if (!unescaped)
737  return AVERROR(ENOMEM);
738  start = find_next_marker(track->vos_data, end);
739  for (next = start; next < end; start = next) {
740  GetBitContext gb;
741  int size;
742  next = find_next_marker(start + 4, end);
743  size = next - start - 4;
744  if (size <= 0)
745  continue;
746  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
747  init_get_bits(&gb, unescaped, 8 * unescaped_size);
748  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
749  int profile = get_bits(&gb, 2);
750  if (profile != PROFILE_ADVANCED) {
751  av_free(unescaped);
752  return AVERROR(ENOSYS);
753  }
754  seq_found = 1;
755  level = get_bits(&gb, 3);
756  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
757  * width, height */
758  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
759  skip_bits(&gb, 1); /* broadcast */
760  interlace = get_bits1(&gb);
761  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
762  }
763  }
764  if (!seq_found) {
765  av_free(unescaped);
766  return AVERROR(ENOSYS);
767  }
768 
769  init_put_bits(&pbc, buf, 7);
770  /* VC1DecSpecStruc */
771  put_bits(&pbc, 4, 12); /* profile - advanced */
772  put_bits(&pbc, 3, level);
773  put_bits(&pbc, 1, 0); /* reserved */
774  /* VC1AdvDecSpecStruc */
775  put_bits(&pbc, 3, level);
776  put_bits(&pbc, 1, 0); /* cbr */
777  put_bits(&pbc, 6, 0); /* reserved */
778  put_bits(&pbc, 1, !interlace); /* no interlace */
779  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
780  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
781  put_bits(&pbc, 1, !slices); /* no slice code */
782  put_bits(&pbc, 1, 0); /* no bframe */
783  put_bits(&pbc, 1, 0); /* reserved */
784 
785  /* framerate */
786  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
787  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
788  else
789  put_bits32(&pbc, 0xffffffff);
790 
791  flush_put_bits(&pbc);
792 
793  av_free(unescaped);
794 
795  return 0;
796 }
797 
798 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
799 {
800  uint8_t buf[7] = { 0 };
801  int ret;
802 
803  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
804  return ret;
805 
806  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
807  ffio_wfourcc(pb, "dvc1");
808  avio_write(pb, buf, sizeof(buf));
809  avio_write(pb, track->vos_data, track->vos_len);
810 
811  return 0;
812 }
813 
814 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
815 {
816  avio_wb32(pb, track->vos_len + 8);
817  ffio_wfourcc(pb, "glbl");
818  avio_write(pb, track->vos_data, track->vos_len);
819  return 8 + track->vos_len;
820 }
821 
822 /**
823  * Compute flags for 'lpcm' tag.
824  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
825  */
827 {
828  switch (codec_id) {
831  return 11;
834  return 9;
835  case AV_CODEC_ID_PCM_U8:
836  return 10;
840  return 14;
841  case AV_CODEC_ID_PCM_S8:
845  return 12;
846  default:
847  return 0;
848  }
849 }
850 
851 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
852 {
853  int64_t next_dts;
854 
855  if (cluster_idx >= track->entry)
856  return 0;
857 
858  if (cluster_idx + 1 == track->entry)
859  next_dts = track->track_duration + track->start_dts;
860  else
861  next_dts = track->cluster[cluster_idx + 1].dts;
862 
863  next_dts -= track->cluster[cluster_idx].dts;
864 
865  av_assert0(next_dts >= 0);
866  av_assert0(next_dts <= INT_MAX);
867 
868  return next_dts;
869 }
870 
872 {
873  int i, first_duration;
874 
875 // return track->enc->frame_size;
876 
877  /* use 1 for raw PCM */
878  if (!track->audio_vbr)
879  return 1;
880 
881  /* check to see if duration is constant for all clusters */
882  if (!track->entry)
883  return 0;
884  first_duration = get_cluster_duration(track, 0);
885  for (i = 1; i < track->entry; i++) {
886  if (get_cluster_duration(track, i) != first_duration)
887  return 0;
888  }
889  return first_duration;
890 }
891 
892 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
893 {
894  int64_t pos = avio_tell(pb);
895  int version = 0;
896  uint32_t tag = track->tag;
897 
898  if (track->mode == MODE_MOV) {
899  if (track->timescale > UINT16_MAX) {
900  if (mov_get_lpcm_flags(track->enc->codec_id))
901  tag = AV_RL32("lpcm");
902  version = 2;
903  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
904  mov_pcm_be_gt16(track->enc->codec_id) ||
905  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
907  track->enc->codec_id == AV_CODEC_ID_QDM2) {
908  version = 1;
909  }
910  }
911 
912  avio_wb32(pb, 0); /* size */
913  avio_wl32(pb, tag); // store it byteswapped
914  avio_wb32(pb, 0); /* Reserved */
915  avio_wb16(pb, 0); /* Reserved */
916  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
917 
918  /* SoundDescription */
919  avio_wb16(pb, version); /* Version */
920  avio_wb16(pb, 0); /* Revision level */
921  avio_wb32(pb, 0); /* Reserved */
922 
923  if (version == 2) {
924  avio_wb16(pb, 3);
925  avio_wb16(pb, 16);
926  avio_wb16(pb, 0xfffe);
927  avio_wb16(pb, 0);
928  avio_wb32(pb, 0x00010000);
929  avio_wb32(pb, 72);
930  avio_wb64(pb, av_double2int(track->enc->sample_rate));
931  avio_wb32(pb, track->enc->channels);
932  avio_wb32(pb, 0x7F000000);
935  avio_wb32(pb, track->sample_size);
936  avio_wb32(pb, get_samples_per_packet(track));
937  } else {
938  if (track->mode == MODE_MOV) {
939  avio_wb16(pb, track->enc->channels);
940  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
941  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
942  avio_wb16(pb, 8); /* bits per sample */
943  else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
944  avio_wb16(pb, track->enc->bits_per_coded_sample);
945  else
946  avio_wb16(pb, 16);
947  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
948  } else { /* reserved for mp4/3gp */
949  avio_wb16(pb, 2);
950  avio_wb16(pb, 16);
951  avio_wb16(pb, 0);
952  }
953 
954  avio_wb16(pb, 0); /* packet size (= 0) */
955  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
956  track->enc->sample_rate : 0);
957  avio_wb16(pb, 0); /* Reserved */
958  }
959 
960  if (version == 1) { /* SoundDescription V1 extended info */
961  if (mov_pcm_le_gt16(track->enc->codec_id) ||
962  mov_pcm_be_gt16(track->enc->codec_id))
963  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
964  else
965  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
966  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
967  avio_wb32(pb, track->sample_size); /* Bytes per frame */
968  avio_wb32(pb, 2); /* Bytes per sample */
969  }
970 
971  if (track->mode == MODE_MOV &&
972  (track->enc->codec_id == AV_CODEC_ID_AAC ||
973  track->enc->codec_id == AV_CODEC_ID_AC3 ||
974  track->enc->codec_id == AV_CODEC_ID_EAC3 ||
975  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
976  track->enc->codec_id == AV_CODEC_ID_ALAC ||
977  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
979  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
980  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
981  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
982  mov_write_wave_tag(pb, track);
983  else if (track->tag == MKTAG('m','p','4','a'))
984  mov_write_esds_tag(pb, track);
985  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
986  mov_write_amr_tag(pb, track);
987  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
988  mov_write_ac3_tag(pb, track);
989  else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
990  mov_write_eac3_tag(pb, track);
991  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
992  mov_write_extradata_tag(pb, track);
993  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
994  mov_write_wfex_tag(pb, track);
995  else if (track->vos_len > 0)
996  mov_write_glbl_tag(pb, track);
997 
998  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
999  mov_write_chan_tag(pb, track);
1000 
1001  return update_size(pb, pos);
1002 }
1003 
1005 {
1006  avio_wb32(pb, 0xf); /* size */
1007  ffio_wfourcc(pb, "d263");
1008  ffio_wfourcc(pb, "FFMP");
1009  avio_w8(pb, 0); /* decoder version */
1010  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1011  avio_w8(pb, 0xa); /* level */
1012  avio_w8(pb, 0); /* profile */
1013  return 0xf;
1014 }
1015 
1016 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1017 {
1018  int64_t pos = avio_tell(pb);
1019 
1020  avio_wb32(pb, 0);
1021  ffio_wfourcc(pb, "avcC");
1022  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1023  return update_size(pb, pos);
1024 }
1025 
1026 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1027 {
1028  int64_t pos = avio_tell(pb);
1029 
1030  avio_wb32(pb, 0);
1031  ffio_wfourcc(pb, "hvcC");
1032  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1033  return update_size(pb, pos);
1034 }
1035 
1036 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1037 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1038 {
1039  int i;
1040  int interlaced;
1041  int cid;
1042 
1043  if (track->vos_data && track->vos_len > 0x29) {
1044  if (track->vos_data[0] == 0x00 &&
1045  track->vos_data[1] == 0x00 &&
1046  track->vos_data[2] == 0x02 &&
1047  track->vos_data[3] == 0x80 &&
1048  (track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
1049  /* looks like a DNxHD bit stream */
1050  interlaced = (track->vos_data[5] & 2);
1051  cid = AV_RB32(track->vos_data + 0x28);
1052  } else {
1053  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1054  return 0;
1055  }
1056  } else {
1057  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1058  return 0;
1059  }
1060 
1061  avio_wb32(pb, 24); /* size */
1062  ffio_wfourcc(pb, "ACLR");
1063  ffio_wfourcc(pb, "ACLR");
1064  ffio_wfourcc(pb, "0001");
1065  if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1067  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1068  } else { /* Full range (0-255) */
1069  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1070  }
1071  avio_wb32(pb, 0); /* unknown */
1072 
1073  avio_wb32(pb, 24); /* size */
1074  ffio_wfourcc(pb, "APRG");
1075  ffio_wfourcc(pb, "APRG");
1076  ffio_wfourcc(pb, "0001");
1077  avio_wb32(pb, 1); /* unknown */
1078  avio_wb32(pb, 0); /* unknown */
1079 
1080  avio_wb32(pb, 120); /* size */
1081  ffio_wfourcc(pb, "ARES");
1082  ffio_wfourcc(pb, "ARES");
1083  ffio_wfourcc(pb, "0001");
1084  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1085  avio_wb32(pb, track->enc->width);
1086  /* values below are based on samples created with quicktime and avid codecs */
1087  if (interlaced) {
1088  avio_wb32(pb, track->enc->height / 2);
1089  avio_wb32(pb, 2); /* unknown */
1090  avio_wb32(pb, 0); /* unknown */
1091  avio_wb32(pb, 4); /* unknown */
1092  } else {
1093  avio_wb32(pb, track->enc->height);
1094  avio_wb32(pb, 1); /* unknown */
1095  avio_wb32(pb, 0); /* unknown */
1096  if (track->enc->height == 1080)
1097  avio_wb32(pb, 5); /* unknown */
1098  else
1099  avio_wb32(pb, 6); /* unknown */
1100  }
1101  /* padding */
1102  for (i = 0; i < 10; i++)
1103  avio_wb64(pb, 0);
1104 
1105  return 0;
1106 }
1107 
1108 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1109 {
1110  avio_wb32(pb, 12);
1111  ffio_wfourcc(pb, "DpxE");
1112  if (track->enc->extradata_size >= 12 &&
1113  !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1114  avio_wb32(pb, track->enc->extradata[11]);
1115  } else {
1116  avio_wb32(pb, 1);
1117  }
1118  return 0;
1119 }
1120 
1122 {
1123  int tag = track->enc->codec_tag;
1124 
1126  return 0;
1127 
1128  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1129  else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1130  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1131  else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1132  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1133  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1134  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1135  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1136  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1137  else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1138 
1139  return tag;
1140 }
1141 
1142 static const AVCodecTag codec_ipod_tags[] = {
1143  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1144  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1145  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1146  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1147  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1148  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1149  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1150  { AV_CODEC_ID_NONE, 0 },
1151 };
1152 
1154 {
1155  int tag = track->enc->codec_tag;
1156 
1157  // keep original tag for subs, ipod supports both formats
1158  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1159  (tag == MKTAG('t', 'x', '3', 'g') ||
1160  tag == MKTAG('t', 'e', 'x', 't'))))
1161  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1162 
1163  if (!av_match_ext(s->filename, "m4a") &&
1164  !av_match_ext(s->filename, "m4b") &&
1165  !av_match_ext(s->filename, "m4v"))
1166  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1167  "Quicktime/Ipod might not play the file\n");
1168 
1169  return tag;
1170 }
1171 
1173 {
1174  int tag;
1175 
1176  if (track->enc->width == 720) { /* SD */
1177  if (track->enc->height == 480) { /* NTSC */
1178  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1179  else tag = MKTAG('d','v','c',' ');
1180  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1181  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1182  else tag = MKTAG('d','v','p','p');
1183  } else if (track->enc->height == 720) { /* HD 720 line */
1184  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1185  else tag = MKTAG('d','v','h','p');
1186  } else if (track->enc->height == 1080) { /* HD 1080 line */
1187  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1188  else tag = MKTAG('d','v','h','6');
1189  } else {
1190  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1191  return 0;
1192  }
1193 
1194  return tag;
1195 }
1196 
1198 {
1199  AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1200  /* if the codec time base makes no sense, try to fallback on stream frame rate */
1201  if (av_timecode_check_frame_rate(rate) < 0) {
1202  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1203  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1204  rate = st->avg_frame_rate;
1205  }
1206 
1207  return rate;
1208 }
1209 
1211 {
1212  int tag = track->enc->codec_tag;
1214  AVStream *st = track->st;
1215  int rate = av_q2d(find_fps(s, st));
1216 
1217  if (!tag)
1218  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1219 
1220  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1221  if (track->enc->width == 1280 && track->enc->height == 720) {
1222  if (!interlaced) {
1223  if (rate == 24) tag = MKTAG('x','d','v','4');
1224  else if (rate == 25) tag = MKTAG('x','d','v','5');
1225  else if (rate == 30) tag = MKTAG('x','d','v','1');
1226  else if (rate == 50) tag = MKTAG('x','d','v','a');
1227  else if (rate == 60) tag = MKTAG('x','d','v','9');
1228  }
1229  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1230  if (!interlaced) {
1231  if (rate == 24) tag = MKTAG('x','d','v','6');
1232  else if (rate == 25) tag = MKTAG('x','d','v','7');
1233  else if (rate == 30) tag = MKTAG('x','d','v','8');
1234  } else {
1235  if (rate == 25) tag = MKTAG('x','d','v','3');
1236  else if (rate == 30) tag = MKTAG('x','d','v','2');
1237  }
1238  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1239  if (!interlaced) {
1240  if (rate == 24) tag = MKTAG('x','d','v','d');
1241  else if (rate == 25) tag = MKTAG('x','d','v','e');
1242  else if (rate == 30) tag = MKTAG('x','d','v','f');
1243  } else {
1244  if (rate == 25) tag = MKTAG('x','d','v','c');
1245  else if (rate == 30) tag = MKTAG('x','d','v','b');
1246  }
1247  }
1248  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1249  if (track->enc->width == 1280 && track->enc->height == 720) {
1250  if (!interlaced) {
1251  if (rate == 24) tag = MKTAG('x','d','5','4');
1252  else if (rate == 25) tag = MKTAG('x','d','5','5');
1253  else if (rate == 30) tag = MKTAG('x','d','5','1');
1254  else if (rate == 50) tag = MKTAG('x','d','5','a');
1255  else if (rate == 60) tag = MKTAG('x','d','5','9');
1256  }
1257  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1258  if (!interlaced) {
1259  if (rate == 24) tag = MKTAG('x','d','5','d');
1260  else if (rate == 25) tag = MKTAG('x','d','5','e');
1261  else if (rate == 30) tag = MKTAG('x','d','5','f');
1262  } else {
1263  if (rate == 25) tag = MKTAG('x','d','5','c');
1264  else if (rate == 30) tag = MKTAG('x','d','5','b');
1265  }
1266  }
1267  }
1268 
1269  return tag;
1270 }
1271 
1273 {
1274  int tag = track->enc->codec_tag;
1276  AVStream *st = track->st;
1277  int rate = av_q2d(find_fps(s, st));
1278 
1279  if (!tag)
1280  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1281 
1282  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1283  if (track->enc->width == 960 && track->enc->height == 720) {
1284  if (!interlaced) {
1285  if (rate == 24) tag = MKTAG('a','i','5','p');
1286  else if (rate == 25) tag = MKTAG('a','i','5','q');
1287  else if (rate == 30) tag = MKTAG('a','i','5','p');
1288  else if (rate == 50) tag = MKTAG('a','i','5','q');
1289  else if (rate == 60) tag = MKTAG('a','i','5','p');
1290  }
1291  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1292  if (!interlaced) {
1293  if (rate == 24) tag = MKTAG('a','i','5','3');
1294  else if (rate == 25) tag = MKTAG('a','i','5','2');
1295  else if (rate == 30) tag = MKTAG('a','i','5','3');
1296  } else {
1297  if (rate == 50) tag = MKTAG('a','i','5','5');
1298  else if (rate == 60) tag = MKTAG('a','i','5','6');
1299  }
1300  }
1301  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1302  if (track->enc->width == 1280 && track->enc->height == 720) {
1303  if (!interlaced) {
1304  if (rate == 24) tag = MKTAG('a','i','1','p');
1305  else if (rate == 25) tag = MKTAG('a','i','1','q');
1306  else if (rate == 30) tag = MKTAG('a','i','1','p');
1307  else if (rate == 50) tag = MKTAG('a','i','1','q');
1308  else if (rate == 60) tag = MKTAG('a','i','1','p');
1309  }
1310  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1311  if (!interlaced) {
1312  if (rate == 24) tag = MKTAG('a','i','1','3');
1313  else if (rate == 25) tag = MKTAG('a','i','1','2');
1314  else if (rate == 30) tag = MKTAG('a','i','1','3');
1315  } else {
1316  if (rate == 25) tag = MKTAG('a','i','1','5');
1317  else if (rate == 50) tag = MKTAG('a','i','1','5');
1318  else if (rate == 60) tag = MKTAG('a','i','1','6');
1319  }
1320  } else if ( track->enc->width == 4096 && track->enc->height == 2160
1321  || track->enc->width == 3840 && track->enc->height == 2160
1322  || track->enc->width == 2048 && track->enc->height == 1080) {
1323  tag = MKTAG('a','i','v','x');
1324  }
1325  }
1326 
1327  return tag;
1328 }
1329 
1330 static const struct {
1332  uint32_t tag;
1333  unsigned bps;
1334 } mov_pix_fmt_tags[] = {
1335  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1336  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1337  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1338  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1339  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1340  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1341  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1342  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1343  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1344  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1345  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1346  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1347  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1348  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1349  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1350 };
1351 
1353 {
1354  int tag = track->enc->codec_tag;
1355  int i;
1356  enum AVPixelFormat pix_fmt;
1357 
1358  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1359  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1360  tag = mov_pix_fmt_tags[i].tag;
1361  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1362  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1363  break;
1364  }
1365  }
1366 
1368  track->enc->bits_per_coded_sample);
1369  if (tag == MKTAG('r','a','w',' ') &&
1370  track->enc->pix_fmt != pix_fmt &&
1371  track->enc->pix_fmt != AV_PIX_FMT_NONE)
1372  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1373  av_get_pix_fmt_name(track->enc->pix_fmt));
1374  return tag;
1375 }
1376 
1378 {
1379  int tag = track->enc->codec_tag;
1380 
1381  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1382  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1383  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1384  track->enc->codec_id == AV_CODEC_ID_H263 ||
1385  track->enc->codec_id == AV_CODEC_ID_H264 ||
1386  track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1387  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1388  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1389  tag = mov_get_dv_codec_tag(s, track);
1390  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1391  tag = mov_get_rawvideo_codec_tag(s, track);
1392  else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1393  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1394  else if (track->enc->codec_id == AV_CODEC_ID_H264)
1395  tag = mov_get_h264_codec_tag(s, track);
1396  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1398  if (!tag) { // if no mac fcc found, try with Microsoft tags
1400  if (tag)
1401  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1402  "the file may be unplayable!\n");
1403  }
1404  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1406  if (!tag) { // if no mac fcc found, try with Microsoft tags
1407  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1408  if (ms_tag) {
1409  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1410  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1411  "the file may be unplayable!\n");
1412  }
1413  }
1414  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1416  }
1417 
1418  return tag;
1419 }
1420 
1421 static const AVCodecTag codec_3gp_tags[] = {
1422  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1423  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1424  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1425  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1426  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1427  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1428  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1429  { AV_CODEC_ID_NONE, 0 },
1430 };
1431 
1432 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1433  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1434  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1435  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1436  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1437  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1438  { AV_CODEC_ID_NONE, 0 },
1439 };
1440 
1442 {
1443  int tag;
1444 
1445  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1446  tag = mp4_get_codec_tag(s, track);
1447  else if (track->mode == MODE_ISM) {
1448  tag = mp4_get_codec_tag(s, track);
1449  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1450  tag = MKTAG('w', 'm', 'a', ' ');
1451  } else if (track->mode == MODE_IPOD)
1452  tag = ipod_get_codec_tag(s, track);
1453  else if (track->mode & MODE_3GP)
1454  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1455  else if (track->mode == MODE_F4V)
1456  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1457  else
1458  tag = mov_get_codec_tag(s, track);
1459 
1460  return tag;
1461 }
1462 
1463 /** Write uuid atom.
1464  * Needed to make file play in iPods running newest firmware
1465  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1466  */
1468 {
1469  avio_wb32(pb, 28);
1470  ffio_wfourcc(pb, "uuid");
1471  avio_wb32(pb, 0x6b6840f2);
1472  avio_wb32(pb, 0x5f244fc5);
1473  avio_wb32(pb, 0xba39a51b);
1474  avio_wb32(pb, 0xcf0323f3);
1475  avio_wb32(pb, 0x0);
1476  return 28;
1477 }
1478 
1479 static const uint16_t fiel_data[] = {
1480  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1481 };
1482 
1483 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1484 {
1485  unsigned mov_field_order = 0;
1486  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1487  mov_field_order = fiel_data[track->enc->field_order];
1488  else
1489  return 0;
1490  avio_wb32(pb, 10);
1491  ffio_wfourcc(pb, "fiel");
1492  avio_wb16(pb, mov_field_order);
1493  return 10;
1494 }
1495 
1497 {
1498  int64_t pos = avio_tell(pb);
1499  avio_wb32(pb, 0); /* size */
1500  avio_wl32(pb, track->tag); // store it byteswapped
1501  avio_wb32(pb, 0); /* Reserved */
1502  avio_wb16(pb, 0); /* Reserved */
1503  avio_wb16(pb, 1); /* Data-reference index */
1504 
1505  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1506  mov_write_esds_tag(pb, track);
1507  else if (track->enc->extradata_size)
1508  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1509 
1510  return update_size(pb, pos);
1511 }
1512 
1513 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1514 {
1515  AVRational sar;
1516  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1517  track->enc->sample_aspect_ratio.den, INT_MAX);
1518 
1519  avio_wb32(pb, 16);
1520  ffio_wfourcc(pb, "pasp");
1521  avio_wb32(pb, sar.num);
1522  avio_wb32(pb, sar.den);
1523  return 16;
1524 }
1525 
1526 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1527 {
1528  uint32_t gama = 0;
1529  if (gamma <= 0.0)
1530  {
1531  gamma = avpriv_get_gamma_from_trc(track->enc->color_trc);
1532  }
1533  av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1534 
1535  if (gamma > 1e-6) {
1536  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1537  av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
1538 
1539  av_assert0(track->mode == MODE_MOV);
1540  avio_wb32(pb, 12);
1541  ffio_wfourcc(pb, "gama");
1542  avio_wb32(pb, gama);
1543  return 12;
1544  }
1545  else {
1546  av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1547  }
1548  return 0;
1549 }
1550 
1551 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1552 {
1553  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1554  // Ref (MP4): ISO/IEC 14496-12:2012
1555 
1556  if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1557  track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1558  track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1559  if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1560  || (track->enc->width == 1280 && track->enc->height == 720)) {
1561  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1563  } else if (track->enc->width == 720 && track->height == 576) {
1564  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1566  } else if (track->enc->width == 720 &&
1567  (track->height == 486 || track->height == 480)) {
1568  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1570  } else {
1571  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1572  }
1573  switch (track->enc->color_primaries) {
1574  case AVCOL_PRI_BT709:
1575  track->enc->color_trc = AVCOL_TRC_BT709;
1576  track->enc->colorspace = AVCOL_SPC_BT709;
1577  break;
1578  case AVCOL_PRI_SMPTE170M:
1579  case AVCOL_PRI_BT470BG:
1580  track->enc->color_trc = AVCOL_TRC_BT709;
1582  break;
1583  }
1584  }
1585 
1586  /* We should only ever be called by MOV or MP4. */
1587  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1588 
1589  avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1590  ffio_wfourcc(pb, "colr");
1591  if (track->mode == MODE_MP4)
1592  ffio_wfourcc(pb, "nclx");
1593  else
1594  ffio_wfourcc(pb, "nclc");
1595  switch (track->enc->color_primaries) {
1596  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1597  case AVCOL_PRI_SMPTE170M:
1598  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1599  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1600  default: avio_wb16(pb, 2);
1601  }
1602  switch (track->enc->color_trc) {
1603  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1604  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1605  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1606  default: avio_wb16(pb, 2);
1607  }
1608  switch (track->enc->colorspace) {
1609  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1610  case AVCOL_PRI_SMPTE170M: avio_wb16(pb, 6); break;
1611  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 7); break;
1612  default: avio_wb16(pb, 2);
1613  }
1614 
1615  if (track->mode == MODE_MP4) {
1616  int full_range = track->enc->color_range == AVCOL_RANGE_JPEG;
1617  avio_w8(pb, full_range << 7);
1618  return 19;
1619  } else {
1620  return 18;
1621  }
1622 }
1623 
1624 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1625 {
1626  AVDictionaryEntry *encoder;
1627  int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1628  || (track->enc->width == 1440 && track->enc->height == 1080)
1629  || (track->enc->width == 1920 && track->enc->height == 1080);
1630 
1631  if (track->mode == MODE_MOV &&
1632  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1633  av_strlcpy(compressor_name, encoder->value, 32);
1634  } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1636  AVStream *st = track->st;
1637  int rate = av_q2d(find_fps(NULL, st));
1638  av_strlcatf(compressor_name, len, "XDCAM");
1639  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1640  av_strlcatf(compressor_name, len, " HD422");
1641  } else if(track->enc->width == 1440) {
1642  av_strlcatf(compressor_name, len, " HD");
1643  } else
1644  av_strlcatf(compressor_name, len, " EX");
1645 
1646  av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1647 
1648  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1649  }
1650 }
1651 
1653 {
1654  int64_t pos = avio_tell(pb);
1655  char compressor_name[32] = { 0 };
1656  int avid = 0;
1657 
1658  avio_wb32(pb, 0); /* size */
1659  avio_wl32(pb, track->tag); // store it byteswapped
1660  avio_wb32(pb, 0); /* Reserved */
1661  avio_wb16(pb, 0); /* Reserved */
1662  avio_wb16(pb, 1); /* Data-reference index */
1663 
1664  avio_wb16(pb, 0); /* Codec stream version */
1665  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1666  if (track->mode == MODE_MOV) {
1667  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1668  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1669  avio_wb32(pb, 0); /* Temporal Quality */
1670  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1671  } else {
1672  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1673  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1674  }
1675  } else {
1676  avio_wb32(pb, 0); /* Reserved */
1677  avio_wb32(pb, 0); /* Reserved */
1678  avio_wb32(pb, 0); /* Reserved */
1679  }
1680  avio_wb16(pb, track->enc->width); /* Video width */
1681  avio_wb16(pb, track->height); /* Video height */
1682  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1683  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1684  avio_wb32(pb, 0); /* Data size (= 0) */
1685  avio_wb16(pb, 1); /* Frame count (= 1) */
1686 
1687  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1688  find_compressor(compressor_name, 32, track);
1689  avio_w8(pb, strlen(compressor_name));
1690  avio_write(pb, compressor_name, 31);
1691 
1692  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1693  avio_wb16(pb, track->enc->bits_per_coded_sample);
1694  else
1695  avio_wb16(pb, 0x18); /* Reserved */
1696  avio_wb16(pb, 0xffff); /* Reserved */
1697  if (track->tag == MKTAG('m','p','4','v'))
1698  mov_write_esds_tag(pb, track);
1699  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1700  mov_write_d263_tag(pb);
1701  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1702  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1703  mov_write_extradata_tag(pb, track);
1704  avio_wb32(pb, 0);
1705  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1706  mov_write_avid_tag(pb, track);
1707  avid = 1;
1708  } else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1709  mov_write_hvcc_tag(pb, track);
1710  else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1711  mov_write_avcc_tag(pb, track);
1712  if (track->mode == MODE_IPOD)
1714  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1715  mov_write_dvc1_tag(pb, track);
1716  else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1717  track->enc->codec_id == AV_CODEC_ID_VP6A) {
1718  /* Don't write any potential extradata here - the cropping
1719  * is signalled via the normal width/height fields. */
1720  } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1721  if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1722  mov_write_dpxe_tag(pb, track);
1723  } else if (track->vos_len > 0)
1724  mov_write_glbl_tag(pb, track);
1725 
1726  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1727  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1728  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1729  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1730  mov_write_fiel_tag(pb, track);
1731 
1732  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1733  if (track->mode == MODE_MOV)
1734  mov_write_gama_tag(pb, track, mov->gamma);
1735  else
1736  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1737  }
1738  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1739  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1740  mov_write_colr_tag(pb, track);
1741  else
1742  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1743  }
1744 
1745  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1746  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1747  mov_write_pasp_tag(pb, track);
1748  }
1749 
1750  /* extra padding for avid stsd */
1751  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1752  if (avid)
1753  avio_wb32(pb, 0);
1754 
1755  return update_size(pb, pos);
1756 }
1757 
1758 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1759 {
1760  int64_t pos = avio_tell(pb);
1761  avio_wb32(pb, 0); /* size */
1762  ffio_wfourcc(pb, "rtp ");
1763  avio_wb32(pb, 0); /* Reserved */
1764  avio_wb16(pb, 0); /* Reserved */
1765  avio_wb16(pb, 1); /* Data-reference index */
1766 
1767  avio_wb16(pb, 1); /* Hint track version */
1768  avio_wb16(pb, 1); /* Highest compatible version */
1769  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1770 
1771  avio_wb32(pb, 12); /* size */
1772  ffio_wfourcc(pb, "tims");
1773  avio_wb32(pb, track->timescale);
1774 
1775  return update_size(pb, pos);
1776 }
1777 
1778 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1779 {
1780  uint64_t str_size =strlen(reel_name);
1781  int64_t pos = avio_tell(pb);
1782 
1783  if (str_size >= UINT16_MAX){
1784  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1785  avio_wb16(pb, 0);
1786  return AVERROR(EINVAL);
1787  }
1788 
1789  avio_wb32(pb, 0); /* size */
1790  ffio_wfourcc(pb, "name"); /* Data format */
1791  avio_wb16(pb, str_size); /* string size */
1792  avio_wb16(pb, track->language); /* langcode */
1793  avio_write(pb, reel_name, str_size); /* reel name */
1794  return update_size(pb,pos);
1795 }
1796 
1797 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1798 {
1799  int64_t pos = avio_tell(pb);
1800 #if 1
1801  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1802  int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1803  AVDictionaryEntry *t = NULL;
1804 
1805  if (nb_frames > 255) {
1806  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1807  return AVERROR(EINVAL);
1808  }
1809 
1810  avio_wb32(pb, 0); /* size */
1811  ffio_wfourcc(pb, "tmcd"); /* Data format */
1812  avio_wb32(pb, 0); /* Reserved */
1813  avio_wb32(pb, 1); /* Data reference index */
1814  avio_wb32(pb, 0); /* Flags */
1815  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1816  avio_wb32(pb, track->timescale); /* Timescale */
1817  avio_wb32(pb, frame_duration); /* Frame duration */
1818  avio_w8(pb, nb_frames); /* Number of frames */
1819  avio_w8(pb, 0); /* Reserved */
1820 
1821  if (track->st)
1822  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1823 
1824  if (t && utf8len(t->value))
1825  mov_write_source_reference_tag(pb, track, t->value);
1826  else
1827  avio_wb16(pb, 0); /* zero size */
1828 #else
1829 
1830  avio_wb32(pb, 0); /* size */
1831  ffio_wfourcc(pb, "tmcd"); /* Data format */
1832  avio_wb32(pb, 0); /* Reserved */
1833  avio_wb32(pb, 1); /* Data reference index */
1834  if (track->enc->extradata_size)
1835  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1836 #endif
1837  return update_size(pb, pos);
1838 }
1839 
1841 {
1842  int64_t pos = avio_tell(pb);
1843  avio_wb32(pb, 0); /* size */
1844  ffio_wfourcc(pb, "stsd");
1845  avio_wb32(pb, 0); /* version & flags */
1846  avio_wb32(pb, 1); /* entry count */
1847  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1848  mov_write_video_tag(pb, mov, track);
1849  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1850  mov_write_audio_tag(pb, track);
1851  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1852  mov_write_subtitle_tag(pb, track);
1853  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1854  mov_write_rtp_tag(pb, track);
1855  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1856  mov_write_tmcd_tag(pb, track);
1857  return update_size(pb, pos);
1858 }
1859 
1860 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1861 {
1862  MOVStts *ctts_entries;
1863  uint32_t entries = 0;
1864  uint32_t atom_size;
1865  int i;
1866 
1867  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1868  if (!ctts_entries)
1869  return AVERROR(ENOMEM);
1870  ctts_entries[0].count = 1;
1871  ctts_entries[0].duration = track->cluster[0].cts;
1872  for (i = 1; i < track->entry; i++) {
1873  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1874  ctts_entries[entries].count++; /* compress */
1875  } else {
1876  entries++;
1877  ctts_entries[entries].duration = track->cluster[i].cts;
1878  ctts_entries[entries].count = 1;
1879  }
1880  }
1881  entries++; /* last one */
1882  atom_size = 16 + (entries * 8);
1883  avio_wb32(pb, atom_size); /* size */
1884  ffio_wfourcc(pb, "ctts");
1885  avio_wb32(pb, 0); /* version & flags */
1886  avio_wb32(pb, entries); /* entry count */
1887  for (i = 0; i < entries; i++) {
1888  avio_wb32(pb, ctts_entries[i].count);
1889  avio_wb32(pb, ctts_entries[i].duration);
1890  }
1891  av_free(ctts_entries);
1892  return atom_size;
1893 }
1894 
1895 /* Time to sample atom */
1896 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1897 {
1898  MOVStts *stts_entries;
1899  uint32_t entries = -1;
1900  uint32_t atom_size;
1901  int i;
1902 
1903  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1904  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1905  if (!stts_entries)
1906  return AVERROR(ENOMEM);
1907  stts_entries[0].count = track->sample_count;
1908  stts_entries[0].duration = 1;
1909  entries = 1;
1910  } else {
1911  stts_entries = track->entry ?
1912  av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1913  NULL;
1914  if (track->entry && !stts_entries)
1915  return AVERROR(ENOMEM);
1916  for (i = 0; i < track->entry; i++) {
1917  int duration = get_cluster_duration(track, i);
1918  if (i && duration == stts_entries[entries].duration) {
1919  stts_entries[entries].count++; /* compress */
1920  } else {
1921  entries++;
1922  stts_entries[entries].duration = duration;
1923  stts_entries[entries].count = 1;
1924  }
1925  }
1926  entries++; /* last one */
1927  }
1928  atom_size = 16 + (entries * 8);
1929  avio_wb32(pb, atom_size); /* size */
1930  ffio_wfourcc(pb, "stts");
1931  avio_wb32(pb, 0); /* version & flags */
1932  avio_wb32(pb, entries); /* entry count */
1933  for (i = 0; i < entries; i++) {
1934  avio_wb32(pb, stts_entries[i].count);
1935  avio_wb32(pb, stts_entries[i].duration);
1936  }
1937  av_free(stts_entries);
1938  return atom_size;
1939 }
1940 
1942 {
1943  avio_wb32(pb, 28); /* size */
1944  ffio_wfourcc(pb, "dref");
1945  avio_wb32(pb, 0); /* version & flags */
1946  avio_wb32(pb, 1); /* entry count */
1947 
1948  avio_wb32(pb, 0xc); /* size */
1949  //FIXME add the alis and rsrc atom
1950  ffio_wfourcc(pb, "url ");
1951  avio_wb32(pb, 1); /* version & flags */
1952 
1953  return 28;
1954 }
1955 
1957 {
1958  int64_t pos = avio_tell(pb);
1959  int ret;
1960 
1961  avio_wb32(pb, 0); /* size */
1962  ffio_wfourcc(pb, "stbl");
1963  mov_write_stsd_tag(pb, mov, track);
1964  mov_write_stts_tag(pb, track);
1965  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1966  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1967  track->has_keyframes && track->has_keyframes < track->entry)
1968  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1969  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1971  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1972  track->flags & MOV_TRACK_CTTS && track->entry) {
1973 
1974  if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1975  return ret;
1976  }
1977  mov_write_stsc_tag(pb, track);
1978  mov_write_stsz_tag(pb, track);
1979  mov_write_stco_tag(pb, track);
1980  return update_size(pb, pos);
1981 }
1982 
1984 {
1985  int64_t pos = avio_tell(pb);
1986  avio_wb32(pb, 0); /* size */
1987  ffio_wfourcc(pb, "dinf");
1988  mov_write_dref_tag(pb);
1989  return update_size(pb, pos);
1990 }
1991 
1993 {
1994  avio_wb32(pb, 12);
1995  ffio_wfourcc(pb, "nmhd");
1996  avio_wb32(pb, 0);
1997  return 12;
1998 }
1999 
2000 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2001 {
2002  int64_t pos = avio_tell(pb);
2003  const char *font = "Lucida Grande";
2004  avio_wb32(pb, 0); /* size */
2005  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2006  avio_wb32(pb, 0); /* version & flags */
2007  avio_wb16(pb, 0); /* text font */
2008  avio_wb16(pb, 0); /* text face */
2009  avio_wb16(pb, 12); /* text size */
2010  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2011  avio_wb16(pb, 0x0000); /* text color (red) */
2012  avio_wb16(pb, 0x0000); /* text color (green) */
2013  avio_wb16(pb, 0x0000); /* text color (blue) */
2014  avio_wb16(pb, 0xffff); /* background color (red) */
2015  avio_wb16(pb, 0xffff); /* background color (green) */
2016  avio_wb16(pb, 0xffff); /* background color (blue) */
2017  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2018  avio_write(pb, font, strlen(font)); /* font name */
2019  return update_size(pb, pos);
2020 }
2021 
2022 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2023 {
2024  int64_t pos = avio_tell(pb);
2025  avio_wb32(pb, 0); /* size */
2026  ffio_wfourcc(pb, "gmhd");
2027  avio_wb32(pb, 0x18); /* gmin size */
2028  ffio_wfourcc(pb, "gmin");/* generic media info */
2029  avio_wb32(pb, 0); /* version & flags */
2030  avio_wb16(pb, 0x40); /* graphics mode = */
2031  avio_wb16(pb, 0x8000); /* opColor (r?) */
2032  avio_wb16(pb, 0x8000); /* opColor (g?) */
2033  avio_wb16(pb, 0x8000); /* opColor (b?) */
2034  avio_wb16(pb, 0); /* balance */
2035  avio_wb16(pb, 0); /* reserved */
2036 
2037  /*
2038  * This special text atom is required for
2039  * Apple Quicktime chapters. The contents
2040  * don't appear to be documented, so the
2041  * bytes are copied verbatim.
2042  */
2043  if (track->tag != MKTAG('c','6','0','8')) {
2044  avio_wb32(pb, 0x2C); /* size */
2045  ffio_wfourcc(pb, "text");
2046  avio_wb16(pb, 0x01);
2047  avio_wb32(pb, 0x00);
2048  avio_wb32(pb, 0x00);
2049  avio_wb32(pb, 0x00);
2050  avio_wb32(pb, 0x01);
2051  avio_wb32(pb, 0x00);
2052  avio_wb32(pb, 0x00);
2053  avio_wb32(pb, 0x00);
2054  avio_wb32(pb, 0x00004000);
2055  avio_wb16(pb, 0x0000);
2056  }
2057 
2058  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2059  int64_t tmcd_pos = avio_tell(pb);
2060  avio_wb32(pb, 0); /* size */
2061  ffio_wfourcc(pb, "tmcd");
2062  mov_write_tcmi_tag(pb, track);
2063  update_size(pb, tmcd_pos);
2064  }
2065  return update_size(pb, pos);
2066 }
2067 
2069 {
2070  avio_wb32(pb, 16); /* size */
2071  ffio_wfourcc(pb, "smhd");
2072  avio_wb32(pb, 0); /* version & flags */
2073  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2074  avio_wb16(pb, 0); /* reserved */
2075  return 16;
2076 }
2077 
2079 {
2080  avio_wb32(pb, 0x14); /* size (always 0x14) */
2081  ffio_wfourcc(pb, "vmhd");
2082  avio_wb32(pb, 0x01); /* version & flags */
2083  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2084  return 0x14;
2085 }
2086 
2087 static int is_clcp_track(MOVTrack *track)
2088 {
2089  return track->tag == MKTAG('c','7','0','8') ||
2090  track->tag == MKTAG('c','6','0','8');
2091 }
2092 
2093 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2094 {
2095  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2096  int64_t pos = avio_tell(pb);
2097 
2098  hdlr = "dhlr";
2099  hdlr_type = "url ";
2100  descr = "DataHandler";
2101 
2102  if (track) {
2103  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2104  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2105  hdlr_type = "vide";
2106  descr = "VideoHandler";
2107  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2108  hdlr_type = "soun";
2109  descr = "SoundHandler";
2110  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2111  if (is_clcp_track(track)) {
2112  hdlr_type = "clcp";
2113  descr = "ClosedCaptionHandler";
2114  } else {
2115  if (track->tag == MKTAG('t','x','3','g')) {
2116  hdlr_type = "sbtl";
2117  } else if (track->tag == MKTAG('m','p','4','s')) {
2118  hdlr_type = "subp";
2119  } else {
2120  hdlr_type = "text";
2121  }
2122  descr = "SubtitleHandler";
2123  }
2124  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2125  hdlr_type = "hint";
2126  descr = "HintHandler";
2127  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2128  hdlr_type = "tmcd";
2129  descr = "TimeCodeHandler";
2130  } else {
2131  char tag_buf[32];
2132  av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2133  track->enc->codec_tag);
2134 
2135  av_log(track->enc, AV_LOG_WARNING,
2136  "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2137  tag_buf, track->enc->codec_tag);
2138  }
2139  if (track->st) {
2140  // hdlr.name is used by some players to identify the content title
2141  // of the track. So if an alternate handler description is
2142  // specified, use it.
2143  AVDictionaryEntry *t;
2144  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2145  if (t && utf8len(t->value))
2146  descr = t->value;
2147  }
2148  }
2149 
2150  avio_wb32(pb, 0); /* size */
2151  ffio_wfourcc(pb, "hdlr");
2152  avio_wb32(pb, 0); /* Version & flags */
2153  avio_write(pb, hdlr, 4); /* handler */
2154  ffio_wfourcc(pb, hdlr_type); /* handler type */
2155  avio_wb32(pb, 0); /* reserved */
2156  avio_wb32(pb, 0); /* reserved */
2157  avio_wb32(pb, 0); /* reserved */
2158  if (!track || track->mode == MODE_MOV)
2159  avio_w8(pb, strlen(descr)); /* pascal string */
2160  avio_write(pb, descr, strlen(descr)); /* handler description */
2161  if (track && track->mode != MODE_MOV)
2162  avio_w8(pb, 0); /* c string */
2163  return update_size(pb, pos);
2164 }
2165 
2167 {
2168  /* This atom must be present, but leaving the values at zero
2169  * seems harmless. */
2170  avio_wb32(pb, 28); /* size */
2171  ffio_wfourcc(pb, "hmhd");
2172  avio_wb32(pb, 0); /* version, flags */
2173  avio_wb16(pb, 0); /* maxPDUsize */
2174  avio_wb16(pb, 0); /* avgPDUsize */
2175  avio_wb32(pb, 0); /* maxbitrate */
2176  avio_wb32(pb, 0); /* avgbitrate */
2177  avio_wb32(pb, 0); /* reserved */
2178  return 28;
2179 }
2180 
2182 {
2183  int64_t pos = avio_tell(pb);
2184  int ret;
2185 
2186  avio_wb32(pb, 0); /* size */
2187  ffio_wfourcc(pb, "minf");
2188  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2189  mov_write_vmhd_tag(pb);
2190  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2191  mov_write_smhd_tag(pb);
2192  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2193  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2194  mov_write_gmhd_tag(pb, track);
2195  } else {
2196  mov_write_nmhd_tag(pb);
2197  }
2198  } else if (track->tag == MKTAG('r','t','p',' ')) {
2199  mov_write_hmhd_tag(pb);
2200  } else if (track->tag == MKTAG('t','m','c','d')) {
2201  mov_write_gmhd_tag(pb, track);
2202  }
2203  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2204  mov_write_hdlr_tag(pb, NULL);
2205  mov_write_dinf_tag(pb);
2206  if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2207  return ret;
2208  return update_size(pb, pos);
2209 }
2210 
2212  MOVTrack *track)
2213 {
2214  int version = track->track_duration < INT32_MAX ? 0 : 1;
2215 
2216  if (track->mode == MODE_ISM)
2217  version = 1;
2218 
2219  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2220  ffio_wfourcc(pb, "mdhd");
2221  avio_w8(pb, version);
2222  avio_wb24(pb, 0); /* flags */
2223  if (version == 1) {
2224  avio_wb64(pb, track->time);
2225  avio_wb64(pb, track->time);
2226  } else {
2227  avio_wb32(pb, track->time); /* creation time */
2228  avio_wb32(pb, track->time); /* modification time */
2229  }
2230  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2231  if (!track->entry && mov->mode == MODE_ISM)
2232  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2233  else if (!track->entry)
2234  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2235  else
2236  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2237  avio_wb16(pb, track->language); /* language */
2238  avio_wb16(pb, 0); /* reserved (quality) */
2239 
2240  if (version != 0 && track->mode == MODE_MOV) {
2242  "FATAL error, file duration too long for timebase, this file will not be\n"
2243  "playable with quicktime. Choose a different timebase or a different\n"
2244  "container format\n");
2245  }
2246 
2247  return 32;
2248 }
2249 
2251  MOVTrack *track)
2252 {
2253  int64_t pos = avio_tell(pb);
2254  int ret;
2255 
2256  avio_wb32(pb, 0); /* size */
2257  ffio_wfourcc(pb, "mdia");
2258  mov_write_mdhd_tag(pb, mov, track);
2259  mov_write_hdlr_tag(pb, track);
2260  if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2261  return ret;
2262  return update_size(pb, pos);
2263 }
2264 
2265 /* transformation matrix
2266  |a b u|
2267  |c d v|
2268  |tx ty w| */
2269 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2270  int16_t d, int16_t tx, int16_t ty)
2271 {
2272  avio_wb32(pb, a << 16); /* 16.16 format */
2273  avio_wb32(pb, b << 16); /* 16.16 format */
2274  avio_wb32(pb, 0); /* u in 2.30 format */
2275  avio_wb32(pb, c << 16); /* 16.16 format */
2276  avio_wb32(pb, d << 16); /* 16.16 format */
2277  avio_wb32(pb, 0); /* v in 2.30 format */
2278  avio_wb32(pb, tx << 16); /* 16.16 format */
2279  avio_wb32(pb, ty << 16); /* 16.16 format */
2280  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2281 }
2282 
2284  MOVTrack *track, AVStream *st)
2285 {
2287  track->timescale, AV_ROUND_UP);
2288  int version = duration < INT32_MAX ? 0 : 1;
2290  int rotation = 0;
2291  int group = 0;
2292 
2293 
2294  if (st) {
2295  if (mov->per_stream_grouping)
2296  group = st->index;
2297  else
2298  group = st->codec->codec_type;
2299  }
2300 
2301  if (track->flags & MOV_TRACK_ENABLED)
2302  flags |= MOV_TKHD_FLAG_ENABLED;
2303 
2304  if (track->mode == MODE_ISM)
2305  version = 1;
2306 
2307  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2308  ffio_wfourcc(pb, "tkhd");
2309  avio_w8(pb, version);
2310  avio_wb24(pb, flags);
2311  if (version == 1) {
2312  avio_wb64(pb, track->time);
2313  avio_wb64(pb, track->time);
2314  } else {
2315  avio_wb32(pb, track->time); /* creation time */
2316  avio_wb32(pb, track->time); /* modification time */
2317  }
2318  avio_wb32(pb, track->track_id); /* track-id */
2319  avio_wb32(pb, 0); /* reserved */
2320  if (!track->entry && mov->mode == MODE_ISM)
2321  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2322  else if (!track->entry)
2323  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2324  else
2325  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2326 
2327  avio_wb32(pb, 0); /* reserved */
2328  avio_wb32(pb, 0); /* reserved */
2329  avio_wb16(pb, 0); /* layer */
2330  avio_wb16(pb, group); /* alternate group) */
2331  /* Volume, only for audio */
2332  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2333  avio_wb16(pb, 0x0100);
2334  else
2335  avio_wb16(pb, 0);
2336  avio_wb16(pb, 0); /* reserved */
2337 
2338  /* Matrix structure */
2339  if (st && st->metadata) {
2340  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2341  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2342  }
2343  if (rotation == 90) {
2344  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2345  } else if (rotation == 180) {
2346  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2347  } else if (rotation == 270) {
2348  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2349  } else {
2350  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2351  }
2352  /* Track width and height, for visual only */
2353  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2354  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2355  if (track->mode == MODE_MOV) {
2356  avio_wb32(pb, track->enc->width << 16);
2357  avio_wb32(pb, track->height << 16);
2358  } else {
2359  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2360  if (!sample_aspect_ratio || track->height != track->enc->height)
2361  sample_aspect_ratio = 1;
2362  avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2363  avio_wb32(pb, track->height * 0x10000);
2364  }
2365  } else {
2366  avio_wb32(pb, 0);
2367  avio_wb32(pb, 0);
2368  }
2369  return 0x5c;
2370 }
2371 
2372 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2373 {
2375  track->enc->sample_aspect_ratio.den);
2376 
2377  int64_t pos = avio_tell(pb);
2378 
2379  avio_wb32(pb, 0); /* size */
2380  ffio_wfourcc(pb, "tapt");
2381 
2382  avio_wb32(pb, 20);
2383  ffio_wfourcc(pb, "clef");
2384  avio_wb32(pb, 0);
2385  avio_wb32(pb, width << 16);
2386  avio_wb32(pb, track->enc->height << 16);
2387 
2388  avio_wb32(pb, 20);
2389  ffio_wfourcc(pb, "prof");
2390  avio_wb32(pb, 0);
2391  avio_wb32(pb, width << 16);
2392  avio_wb32(pb, track->enc->height << 16);
2393 
2394  avio_wb32(pb, 20);
2395  ffio_wfourcc(pb, "enof");
2396  avio_wb32(pb, 0);
2397  avio_wb32(pb, track->enc->width << 16);
2398  avio_wb32(pb, track->enc->height << 16);
2399 
2400  return update_size(pb, pos);
2401 }
2402 
2403 // This box seems important for the psp playback ... without it the movie seems to hang
2405  MOVTrack *track)
2406 {
2408  track->timescale, AV_ROUND_UP);
2409  int version = duration < INT32_MAX ? 0 : 1;
2410  int entry_size, entry_count, size;
2411  int64_t delay, start_ct = track->start_cts;
2412  int64_t start_dts = track->start_dts;
2413 
2414  if (track->entry) {
2415  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2416 
2417  av_log(mov->fc, AV_LOG_DEBUG,
2418  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2419  track->cluster[0].dts, track->cluster[0].cts,
2420  start_dts, start_ct, track->track_id);
2421  start_dts = track->cluster[0].dts;
2422  start_ct = track->cluster[0].cts;
2423  }
2424  }
2425 
2426  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2427  track->timescale, AV_ROUND_DOWN);
2428  version |= delay < INT32_MAX ? 0 : 1;
2429 
2430  entry_size = (version == 1) ? 20 : 12;
2431  entry_count = 1 + (delay > 0);
2432  size = 24 + entry_count * entry_size;
2433 
2434  /* write the atom data */
2435  avio_wb32(pb, size);
2436  ffio_wfourcc(pb, "edts");
2437  avio_wb32(pb, size - 8);
2438  ffio_wfourcc(pb, "elst");
2439  avio_w8(pb, version);
2440  avio_wb24(pb, 0); /* flags */
2441 
2442  avio_wb32(pb, entry_count);
2443  if (delay > 0) { /* add an empty edit to delay presentation */
2444  /* In the positive delay case, the delay includes the cts
2445  * offset, and the second edit list entry below trims out
2446  * the same amount from the actual content. This makes sure
2447  * that the offsetted last sample is included in the edit
2448  * list duration as well. */
2449  if (version == 1) {
2450  avio_wb64(pb, delay);
2451  avio_wb64(pb, -1);
2452  } else {
2453  avio_wb32(pb, delay);
2454  avio_wb32(pb, -1);
2455  }
2456  avio_wb32(pb, 0x00010000);
2457  } else {
2458  /* Avoid accidentally ending up with start_ct = -1 which has got a
2459  * special meaning. Normally start_ct should end up positive or zero
2460  * here, but use FFMIN in case dts is a a small positive integer
2461  * rounded to 0 when represented in MOV_TIMESCALE units. */
2462  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2463  start_ct = -FFMIN(start_dts, 0);
2464  /* Note, this delay is calculated from the pts of the first sample,
2465  * ensuring that we don't reduce the duration for cases with
2466  * dts<0 pts=0. */
2467  duration += delay;
2468  }
2469 
2470  /* For fragmented files, we don't know the full length yet. Setting
2471  * duration to 0 allows us to only specify the offset, including
2472  * the rest of the content (from all future fragments) without specifying
2473  * an explicit duration. */
2474  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2475  duration = 0;
2476 
2477  /* duration */
2478  if (version == 1) {
2479  avio_wb64(pb, duration);
2480  avio_wb64(pb, start_ct);
2481  } else {
2482  avio_wb32(pb, duration);
2483  avio_wb32(pb, start_ct);
2484  }
2485  avio_wb32(pb, 0x00010000);
2486  return size;
2487 }
2488 
2489 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2490 {
2491  avio_wb32(pb, 20); // size
2492  ffio_wfourcc(pb, "tref");
2493  avio_wb32(pb, 12); // size (subatom)
2494  avio_wl32(pb, track->tref_tag);
2495  avio_wb32(pb, track->tref_id);
2496  return 20;
2497 }
2498 
2499 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2501 {
2502  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2503  ffio_wfourcc(pb, "uuid");
2504  ffio_wfourcc(pb, "USMT");
2505  avio_wb32(pb, 0x21d24fce);
2506  avio_wb32(pb, 0xbb88695c);
2507  avio_wb32(pb, 0xfac9c740);
2508  avio_wb32(pb, 0x1c); // another size here!
2509  ffio_wfourcc(pb, "MTDT");
2510  avio_wb32(pb, 0x00010012);
2511  avio_wb32(pb, 0x0a);
2512  avio_wb32(pb, 0x55c40000);
2513  avio_wb32(pb, 0x1);
2514  avio_wb32(pb, 0x0);
2515  return 0x34;
2516 }
2517 
2518 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2519 {
2520  AVFormatContext *ctx = track->rtp_ctx;
2521  char buf[1000] = "";
2522  int len;
2523 
2524  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2525  NULL, NULL, 0, 0, ctx);
2526  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2527  len = strlen(buf);
2528 
2529  avio_wb32(pb, len + 24);
2530  ffio_wfourcc(pb, "udta");
2531  avio_wb32(pb, len + 16);
2532  ffio_wfourcc(pb, "hnti");
2533  avio_wb32(pb, len + 8);
2534  ffio_wfourcc(pb, "sdp ");
2535  avio_write(pb, buf, len);
2536  return len + 24;
2537 }
2538 
2540  const char *tag, const char *str)
2541 {
2542  int64_t pos = avio_tell(pb);
2543  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2544  if (!t || !utf8len(t->value))
2545  return 0;
2546 
2547  avio_wb32(pb, 0); /* size */
2548  ffio_wfourcc(pb, tag); /* type */
2549  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2550  return update_size(pb, pos);
2551 }
2552 
2554  AVStream *st)
2555 {
2556  AVIOContext *pb_buf;
2557  int ret, size;
2558  uint8_t *buf;
2559 
2560  if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2561  return 0;
2562 
2563  ret = avio_open_dyn_buf(&pb_buf);
2564  if (ret < 0)
2565  return ret;
2566 
2567  if (mov->mode & MODE_MP4)
2568  mov_write_track_metadata(pb_buf, st, "name", "title");
2569 
2570  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2571  avio_wb32(pb, size + 8);
2572  ffio_wfourcc(pb, "udta");
2573  avio_write(pb, buf, size);
2574  }
2575  av_free(buf);
2576 
2577  return 0;
2578 }
2579 
2581  MOVTrack *track, AVStream *st)
2582 {
2583  int64_t pos = avio_tell(pb);
2584  int entry_backup = track->entry;
2585  int chunk_backup = track->chunkCount;
2586  int ret;
2587 
2588  /* If we want to have an empty moov, but some samples already have been
2589  * buffered (delay_moov), pretend that no samples have been written yet. */
2590  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2591  track->chunkCount = track->entry = 0;
2592 
2593  avio_wb32(pb, 0); /* size */
2594  ffio_wfourcc(pb, "trak");
2595  mov_write_tkhd_tag(pb, mov, track, st);
2596 
2597  av_assert2(mov->use_editlist >= 0);
2598 
2599  if (track->start_dts != AV_NOPTS_VALUE) {
2600  if (mov->use_editlist)
2601  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2602  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2603  av_log(mov->fc, AV_LOG_WARNING,
2604  "Not writing any edit list even though one would have been required\n");
2605  }
2606 
2607  if (track->tref_tag)
2608  mov_write_tref_tag(pb, track);
2609 
2610  if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2611  return ret;
2612  if (track->mode == MODE_PSP)
2613  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2614  if (track->tag == MKTAG('r','t','p',' '))
2615  mov_write_udta_sdp(pb, track);
2616  if (track->mode == MODE_MOV) {
2617  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2618  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2619  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2620  mov_write_tapt_tag(pb, track);
2621  }
2622  }
2623  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2624  mov_write_tapt_tag(pb, track);
2625  }
2626  }
2627  mov_write_track_udta_tag(pb, mov, st);
2628  track->entry = entry_backup;
2629  track->chunkCount = chunk_backup;
2630  return update_size(pb, pos);
2631 }
2632 
2634 {
2635  int i, has_audio = 0, has_video = 0;
2636  int64_t pos = avio_tell(pb);
2637  int audio_profile = mov->iods_audio_profile;
2638  int video_profile = mov->iods_video_profile;
2639  for (i = 0; i < mov->nb_streams; i++) {
2640  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2641  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2642  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2643  }
2644  }
2645  if (audio_profile < 0)
2646  audio_profile = 0xFF - has_audio;
2647  if (video_profile < 0)
2648  video_profile = 0xFF - has_video;
2649  avio_wb32(pb, 0x0); /* size */
2650  ffio_wfourcc(pb, "iods");
2651  avio_wb32(pb, 0); /* version & flags */
2652  put_descr(pb, 0x10, 7);
2653  avio_wb16(pb, 0x004f);
2654  avio_w8(pb, 0xff);
2655  avio_w8(pb, 0xff);
2656  avio_w8(pb, audio_profile);
2657  avio_w8(pb, video_profile);
2658  avio_w8(pb, 0xff);
2659  return update_size(pb, pos);
2660 }
2661 
2662 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2663 {
2664  avio_wb32(pb, 0x20); /* size */
2665  ffio_wfourcc(pb, "trex");
2666  avio_wb32(pb, 0); /* version & flags */
2667  avio_wb32(pb, track->track_id); /* track ID */
2668  avio_wb32(pb, 1); /* default sample description index */
2669  avio_wb32(pb, 0); /* default sample duration */
2670  avio_wb32(pb, 0); /* default sample size */
2671  avio_wb32(pb, 0); /* default sample flags */
2672  return 0;
2673 }
2674 
2676 {
2677  int64_t pos = avio_tell(pb);
2678  int i;
2679  avio_wb32(pb, 0x0); /* size */
2680  ffio_wfourcc(pb, "mvex");
2681  for (i = 0; i < mov->nb_streams; i++)
2682  mov_write_trex_tag(pb, &mov->tracks[i]);
2683  return update_size(pb, pos);
2684 }
2685 
2687 {
2688  int max_track_id = 1, i;
2689  int64_t max_track_len = 0;
2690  int version;
2691 
2692  for (i = 0; i < mov->nb_streams; i++) {
2693  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2694  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2695  MOV_TIMESCALE,
2696  mov->tracks[i].timescale,
2697  AV_ROUND_UP);
2698  if (max_track_len < max_track_len_temp)
2699  max_track_len = max_track_len_temp;
2700  if (max_track_id < mov->tracks[i].track_id)
2701  max_track_id = mov->tracks[i].track_id;
2702  }
2703  }
2704  /* If using delay_moov, make sure the output is the same as if no
2705  * samples had been written yet. */
2706  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2707  max_track_len = 0;
2708  max_track_id = 1;
2709  }
2710 
2711  version = max_track_len < UINT32_MAX ? 0 : 1;
2712  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2713 
2714  ffio_wfourcc(pb, "mvhd");
2715  avio_w8(pb, version);
2716  avio_wb24(pb, 0); /* flags */
2717  if (version == 1) {
2718  avio_wb64(pb, mov->time);
2719  avio_wb64(pb, mov->time);
2720  } else {
2721  avio_wb32(pb, mov->time); /* creation time */
2722  avio_wb32(pb, mov->time); /* modification time */
2723  }
2724  avio_wb32(pb, MOV_TIMESCALE);
2725  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2726 
2727  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2728  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2729  avio_wb16(pb, 0); /* reserved */
2730  avio_wb32(pb, 0); /* reserved */
2731  avio_wb32(pb, 0); /* reserved */
2732 
2733  /* Matrix structure */
2734  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2735 
2736  avio_wb32(pb, 0); /* reserved (preview time) */
2737  avio_wb32(pb, 0); /* reserved (preview duration) */
2738  avio_wb32(pb, 0); /* reserved (poster time) */
2739  avio_wb32(pb, 0); /* reserved (selection time) */
2740  avio_wb32(pb, 0); /* reserved (selection duration) */
2741  avio_wb32(pb, 0); /* reserved (current time) */
2742  avio_wb32(pb, max_track_id + 1); /* Next track id */
2743  return 0x6c;
2744 }
2745 
2747  AVFormatContext *s)
2748 {
2749  avio_wb32(pb, 33); /* size */
2750  ffio_wfourcc(pb, "hdlr");
2751  avio_wb32(pb, 0);
2752  avio_wb32(pb, 0);
2753  ffio_wfourcc(pb, "mdir");
2754  ffio_wfourcc(pb, "appl");
2755  avio_wb32(pb, 0);
2756  avio_wb32(pb, 0);
2757  avio_w8(pb, 0);
2758  return 33;
2759 }
2760 
2761 /* helper function to write a data tag with the specified string as data */
2762 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2763 {
2764  if (long_style) {
2765  int size = 16 + strlen(data);
2766  avio_wb32(pb, size); /* size */
2767  ffio_wfourcc(pb, "data");
2768  avio_wb32(pb, 1);
2769  avio_wb32(pb, 0);
2770  avio_write(pb, data, strlen(data));
2771  return size;
2772  } else {
2773  if (!lang)
2774  lang = ff_mov_iso639_to_lang("und", 1);
2775  avio_wb16(pb, strlen(data)); /* string length */
2776  avio_wb16(pb, lang);
2777  avio_write(pb, data, strlen(data));
2778  return strlen(data) + 4;
2779  }
2780 }
2781 
2782 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2783  const char *value, int lang, int long_style)
2784 {
2785  int size = 0;
2786  if (value && value[0]) {
2787  int64_t pos = avio_tell(pb);
2788  avio_wb32(pb, 0); /* size */
2789  ffio_wfourcc(pb, name);
2790  mov_write_string_data_tag(pb, value, lang, long_style);
2791  size = update_size(pb, pos);
2792  }
2793  return size;
2794 }
2795 
2797  const char *name, const char *tag,
2798  int long_style)
2799 {
2800  int l, lang = 0, len, len2;
2801  AVDictionaryEntry *t, *t2 = NULL;
2802  char tag2[16];
2803 
2804  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2805  return 0;
2806 
2807  len = strlen(t->key);
2808  snprintf(tag2, sizeof(tag2), "%s-", tag);
2809  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2810  len2 = strlen(t2->key);
2811  if (len2 == len + 4 && !strcmp(t->value, t2->value)
2812  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2813  lang = l;
2814  break;
2815  }
2816  }
2817  return mov_write_string_tag(pb, name, t->value, lang, long_style);
2818 }
2819 
2820 /* iTunes bpm number */
2822 {
2823  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2824  int size = 0, tmpo = t ? atoi(t->value) : 0;
2825  if (tmpo) {
2826  size = 26;
2827  avio_wb32(pb, size);
2828  ffio_wfourcc(pb, "tmpo");
2829  avio_wb32(pb, size-8); /* size */
2830  ffio_wfourcc(pb, "data");
2831  avio_wb32(pb, 0x15); //type specifier
2832  avio_wb32(pb, 0);
2833  avio_wb16(pb, tmpo); // data
2834  }
2835  return size;
2836 }
2837 
2838 /* iTunes track or disc number */
2840  AVFormatContext *s, int disc)
2841 {
2843  disc ? "disc" : "track",
2844  NULL, 0);
2845  int size = 0, track = t ? atoi(t->value) : 0;
2846  if (track) {
2847  int tracks = 0;
2848  char *slash = strchr(t->value, '/');
2849  if (slash)
2850  tracks = atoi(slash + 1);
2851  avio_wb32(pb, 32); /* size */
2852  ffio_wfourcc(pb, disc ? "disk" : "trkn");
2853  avio_wb32(pb, 24); /* size */
2854  ffio_wfourcc(pb, "data");
2855  avio_wb32(pb, 0); // 8 bytes empty
2856  avio_wb32(pb, 0);
2857  avio_wb16(pb, 0); // empty
2858  avio_wb16(pb, track); // track / disc number
2859  avio_wb16(pb, tracks); // total track / disc number
2860  avio_wb16(pb, 0); // empty
2861  size = 32;
2862  }
2863  return size;
2864 }
2865 
2867  const char *name, const char *tag,
2868  int len)
2869 {
2870  AVDictionaryEntry *t = NULL;
2871  uint8_t num;
2872  int size = 24 + len;
2873 
2874  if (len != 1 && len != 4)
2875  return -1;
2876 
2877  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2878  return 0;
2879  num = atoi(t->value);
2880 
2881  avio_wb32(pb, size);
2882  ffio_wfourcc(pb, name);
2883  avio_wb32(pb, size - 8);
2884  ffio_wfourcc(pb, "data");
2885  avio_wb32(pb, 0x15);
2886  avio_wb32(pb, 0);
2887  if (len==4) avio_wb32(pb, num);
2888  else avio_w8 (pb, num);
2889 
2890  return size;
2891 }
2892 
2893 /* iTunes meta data list */
2895  AVFormatContext *s)
2896 {
2897  int64_t pos = avio_tell(pb);
2898  avio_wb32(pb, 0); /* size */
2899  ffio_wfourcc(pb, "ilst");
2900  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2901  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2902  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2903  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2904  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2905  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2906  if (!mov->exact &&
2907  !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2908  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2909  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2910  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2911  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2912  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2913  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2914  mov_write_string_metadata(s, pb, "desc", "description",1);
2915  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2916  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2917  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2918  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2919  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2920  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2921  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2922  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2923  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2924  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2925  mov_write_trkn_tag(pb, mov, s, 0); // track number
2926  mov_write_trkn_tag(pb, mov, s, 1); // disc number
2927  mov_write_tmpo_tag(pb, s);
2928  return update_size(pb, pos);
2929 }
2930 
2931 /* iTunes meta data tag */
2933  AVFormatContext *s)
2934 {
2935  int size = 0;
2936  int64_t pos = avio_tell(pb);
2937  avio_wb32(pb, 0); /* size */
2938  ffio_wfourcc(pb, "meta");
2939  avio_wb32(pb, 0);
2940  mov_write_itunes_hdlr_tag(pb, mov, s);
2941  mov_write_ilst_tag(pb, mov, s);
2942  size = update_size(pb, pos);
2943  return size;
2944 }
2945 
2947  const char *name, const char *key)
2948 {
2949  int len;
2950  AVDictionaryEntry *t;
2951 
2952  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2953  return 0;
2954 
2955  len = strlen(t->value);
2956  if (len > 0) {
2957  int size = len + 8;
2958  avio_wb32(pb, size);
2959  ffio_wfourcc(pb, name);
2960  avio_write(pb, t->value, len);
2961  return size;
2962  }
2963  return 0;
2964 }
2965 
2966 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2967 {
2968  int val;
2969  while (*b) {
2970  GET_UTF8(val, *b++, return -1;)
2971  avio_wb16(pb, val);
2972  }
2973  avio_wb16(pb, 0x00);
2974  return 0;
2975 }
2976 
2977 static uint16_t language_code(const char *str)
2978 {
2979  return (((str[0] - 0x60) & 0x1F) << 10) +
2980  (((str[1] - 0x60) & 0x1F) << 5) +
2981  (( str[2] - 0x60) & 0x1F);
2982 }
2983 
2985  const char *tag, const char *str)
2986 {
2987  int64_t pos = avio_tell(pb);
2988  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2989  if (!t || !utf8len(t->value))
2990  return 0;
2991  avio_wb32(pb, 0); /* size */
2992  ffio_wfourcc(pb, tag); /* type */
2993  avio_wb32(pb, 0); /* version + flags */
2994  if (!strcmp(tag, "yrrc"))
2995  avio_wb16(pb, atoi(t->value));
2996  else {
2997  avio_wb16(pb, language_code("eng")); /* language */
2998  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2999  if (!strcmp(tag, "albm") &&
3000  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3001  avio_w8(pb, atoi(t->value));
3002  }
3003  return update_size(pb, pos);
3004 }
3005 
3007 {
3008  int64_t pos = avio_tell(pb);
3009  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3010 
3011  avio_wb32(pb, 0); // size
3012  ffio_wfourcc(pb, "chpl");
3013  avio_wb32(pb, 0x01000000); // version + flags
3014  avio_wb32(pb, 0); // unknown
3015  avio_w8(pb, nb_chapters);
3016 
3017  for (i = 0; i < nb_chapters; i++) {
3018  AVChapter *c = s->chapters[i];
3019  AVDictionaryEntry *t;
3020  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3021 
3022  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3023  int len = FFMIN(strlen(t->value), 255);
3024  avio_w8(pb, len);
3025  avio_write(pb, t->value, len);
3026  } else
3027  avio_w8(pb, 0);
3028  }
3029  return update_size(pb, pos);
3030 }
3031 
3033  AVFormatContext *s)
3034 {
3035  AVIOContext *pb_buf;
3036  int ret, size;
3037  uint8_t *buf;
3038 
3039  ret = avio_open_dyn_buf(&pb_buf);
3040  if (ret < 0)
3041  return ret;
3042 
3043  if (mov->mode & MODE_3GP) {
3044  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3045  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3046  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3047  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3048  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3049  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3050  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3051  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3052  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3053  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3054  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3055  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3056  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3057  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3058  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3059  // currently ignored by mov.c
3060  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3061  // add support for libquicktime, this atom is also actually read by mov.c
3062  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3063  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3064  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3065  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3066  } else {
3067  /* iTunes meta data */
3068  mov_write_meta_tag(pb_buf, mov, s);
3069  }
3070 
3071  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3072  mov_write_chpl_tag(pb_buf, s);
3073 
3074  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3075  avio_wb32(pb, size + 8);
3076  ffio_wfourcc(pb, "udta");
3077  avio_write(pb, buf, size);
3078  }
3079  av_free(buf);
3080 
3081  return 0;
3082 }
3083 
3085  const char *str, const char *lang, int type)
3086 {
3087  int len = utf8len(str) + 1;
3088  if (len <= 0)
3089  return;
3090  avio_wb16(pb, len * 2 + 10); /* size */
3091  avio_wb32(pb, type); /* type */
3092  avio_wb16(pb, language_code(lang)); /* language */
3093  avio_wb16(pb, 0x01); /* ? */
3094  ascii_to_wc(pb, str);
3095 }
3096 
3098 {
3099  MOVMuxContext *mov = s->priv_data;
3100  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3101  int64_t pos, pos2;
3102 
3103  if (title) {
3104  pos = avio_tell(pb);
3105  avio_wb32(pb, 0); /* size placeholder*/
3106  ffio_wfourcc(pb, "uuid");
3107  ffio_wfourcc(pb, "USMT");
3108  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3109  avio_wb32(pb, 0xbb88695c);
3110  avio_wb32(pb, 0xfac9c740);
3111 
3112  pos2 = avio_tell(pb);
3113  avio_wb32(pb, 0); /* size placeholder*/
3114  ffio_wfourcc(pb, "MTDT");
3115  avio_wb16(pb, 4);
3116 
3117  // ?
3118  avio_wb16(pb, 0x0C); /* size */
3119  avio_wb32(pb, 0x0B); /* type */
3120  avio_wb16(pb, language_code("und")); /* language */
3121  avio_wb16(pb, 0x0); /* ? */
3122  avio_wb16(pb, 0x021C); /* data */
3123 
3124  if (!mov->exact)
3125  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3126  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3127  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3128 
3129  update_size(pb, pos2);
3130  return update_size(pb, pos);
3131  }
3132 
3133  return 0;
3134 }
3135 
3136 static void build_chunks(MOVTrack *trk)
3137 {
3138  int i;
3139  MOVIentry *chunk = &trk->cluster[0];
3140  uint64_t chunkSize = chunk->size;
3141  chunk->chunkNum = 1;
3142  if (trk->chunkCount)
3143  return;
3144  trk->chunkCount = 1;
3145  for (i = 1; i<trk->entry; i++){
3146  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3147  chunkSize + trk->cluster[i].size < (1<<20)){
3148  chunkSize += trk->cluster[i].size;
3149  chunk->samples_in_chunk += trk->cluster[i].entries;
3150  } else {
3151  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3152  chunk=&trk->cluster[i];
3153  chunkSize = chunk->size;
3154  trk->chunkCount++;
3155  }
3156  }
3157 }
3158 
3160  AVFormatContext *s)
3161 {
3162  int i;
3163  int64_t pos = avio_tell(pb);
3164  avio_wb32(pb, 0); /* size placeholder*/
3165  ffio_wfourcc(pb, "moov");
3166 
3167  for (i = 0; i < mov->nb_streams; i++) {
3168  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3169  continue;
3170 
3171  mov->tracks[i].time = mov->time;
3172  mov->tracks[i].track_id = i + 1;
3173 
3174  if (mov->tracks[i].entry)
3175  build_chunks(&mov->tracks[i]);
3176  }
3177 
3178  if (mov->chapter_track)
3179  for (i = 0; i < s->nb_streams; i++) {
3180  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3181  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3182  }
3183  for (i = 0; i < mov->nb_streams; i++) {
3184  if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3185  mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3186  mov->tracks[i].tref_id =
3187  mov->tracks[mov->tracks[i].src_track].track_id;
3188  }
3189  }
3190  for (i = 0; i < mov->nb_streams; i++) {
3191  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3192  int src_trk = mov->tracks[i].src_track;
3193  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3194  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3195  //src_trk may have a different timescale than the tmcd track
3196  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3197  mov->tracks[i].timescale,
3198  mov->tracks[src_trk].timescale);
3199  }
3200  }
3201 
3202  mov_write_mvhd_tag(pb, mov);
3203  if (mov->mode != MODE_MOV && !mov->iods_skip)
3204  mov_write_iods_tag(pb, mov);
3205  for (i = 0; i < mov->nb_streams; i++) {
3206  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3207  int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3208  if (ret < 0)
3209  return ret;
3210  }
3211  }
3212  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3213  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3214 
3215  if (mov->mode == MODE_PSP)
3216  mov_write_uuidusmt_tag(pb, s);
3217  else
3218  mov_write_udta_tag(pb, mov, s);
3219 
3220  return update_size(pb, pos);
3221 }
3222 
3223 static void param_write_int(AVIOContext *pb, const char *name, int value)
3224 {
3225  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3226 }
3227 
3228 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3229 {
3230  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3231 }
3232 
3233 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3234 {
3235  char buf[150];
3236  len = FFMIN(sizeof(buf) / 2 - 1, len);
3237  ff_data_to_hex(buf, value, len, 0);
3238  buf[2 * len] = '\0';
3239  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3240 }
3241 
3243 {
3244  int64_t pos = avio_tell(pb);
3245  int i;
3246  static const uint8_t uuid[] = {
3247  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3248  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3249  };
3250 
3251  avio_wb32(pb, 0);
3252  ffio_wfourcc(pb, "uuid");
3253  avio_write(pb, uuid, sizeof(uuid));
3254  avio_wb32(pb, 0);
3255 
3256  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3257  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3258  avio_printf(pb, "<head>\n");
3259  if (!mov->exact)
3260  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3262  avio_printf(pb, "</head>\n");
3263  avio_printf(pb, "<body>\n");
3264  avio_printf(pb, "<switch>\n");
3265  for (i = 0; i < mov->nb_streams; i++) {
3266  MOVTrack *track = &mov->tracks[i];
3267  const char *type;
3268  /* track->track_id is initialized in write_moov, and thus isn't known
3269  * here yet */
3270  int track_id = i + 1;
3271 
3272  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3273  type = "video";
3274  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3275  type = "audio";
3276  } else {
3277  continue;
3278  }
3279  avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3280  track->enc->bit_rate);
3281  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3282  param_write_int(pb, "trackID", track_id);
3283  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3284  if (track->enc->codec_id == AV_CODEC_ID_H264) {
3285  uint8_t *ptr;
3286  int size = track->enc->extradata_size;
3287  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3288  &size)) {
3289  param_write_hex(pb, "CodecPrivateData",
3290  ptr ? ptr : track->enc->extradata,
3291  size);
3292  av_free(ptr);
3293  }
3294  param_write_string(pb, "FourCC", "H264");
3295  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3296  param_write_string(pb, "FourCC", "WVC1");
3297  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3298  track->enc->extradata_size);
3299  }
3300  param_write_int(pb, "MaxWidth", track->enc->width);
3301  param_write_int(pb, "MaxHeight", track->enc->height);
3302  param_write_int(pb, "DisplayWidth", track->enc->width);
3303  param_write_int(pb, "DisplayHeight", track->enc->height);
3304  } else {
3305  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3306  param_write_string(pb, "FourCC", "AACL");
3307  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3308  param_write_string(pb, "FourCC", "WMAP");
3309  }
3310  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3311  track->enc->extradata_size);
3313  track->enc->codec_id));
3314  param_write_int(pb, "Channels", track->enc->channels);
3315  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3316  param_write_int(pb, "BitsPerSample", 16);
3317  param_write_int(pb, "PacketSize", track->enc->block_align ?
3318  track->enc->block_align : 4);
3319  }
3320  avio_printf(pb, "</%s>\n", type);
3321  }
3322  avio_printf(pb, "</switch>\n");
3323  avio_printf(pb, "</body>\n");
3324  avio_printf(pb, "</smil>\n");
3325 
3326  return update_size(pb, pos);
3327 }
3328 
3330 {
3331  avio_wb32(pb, 16);
3332  ffio_wfourcc(pb, "mfhd");
3333  avio_wb32(pb, 0);
3334  avio_wb32(pb, mov->fragments);
3335  return 0;
3336 }
3337 
3339  MOVTrack *track, int64_t moof_offset)
3340 {
3341  int64_t pos = avio_tell(pb);
3344  if (!track->entry) {
3345  flags |= MOV_TFHD_DURATION_IS_EMPTY;
3346  } else {
3347  flags |= MOV_TFHD_DEFAULT_FLAGS;
3348  }
3350  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3351  if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3352  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3354  }
3355 
3356  /* Don't set a default sample size, the silverlight player refuses
3357  * to play files with that set. Don't set a default sample duration,
3358  * WMP freaks out if it is set. Don't set a base data offset, PIFF
3359  * file format says it MUST NOT be set. */
3360  if (track->mode == MODE_ISM)
3363 
3364  avio_wb32(pb, 0); /* size placeholder */
3365  ffio_wfourcc(pb, "tfhd");
3366  avio_w8(pb, 0); /* version */
3367  avio_wb24(pb, flags);
3368 
3369  avio_wb32(pb, track->track_id); /* track-id */
3370  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3371  avio_wb64(pb, moof_offset);
3372  if (flags & MOV_TFHD_DEFAULT_DURATION) {
3373  track->default_duration = get_cluster_duration(track, 0);
3374  avio_wb32(pb, track->default_duration);
3375  }
3376  if (flags & MOV_TFHD_DEFAULT_SIZE) {
3377  track->default_size = track->entry ? track->cluster[0].size : 1;
3378  avio_wb32(pb, track->default_size);
3379  } else
3380  track->default_size = -1;
3381 
3382  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3383  track->default_sample_flags =
3384  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3387  avio_wb32(pb, track->default_sample_flags);
3388  }
3389 
3390  return update_size(pb, pos);
3391 }
3392 
3393 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3394 {
3397 }
3398 
3400  MOVTrack *track, int moof_size)
3401 {
3402  int64_t pos = avio_tell(pb);
3403  uint32_t flags = MOV_TRUN_DATA_OFFSET;
3404  int i;
3405 
3406  for (i = 0; i < track->entry; i++) {
3407  if (get_cluster_duration(track, i) != track->default_duration)
3408  flags |= MOV_TRUN_SAMPLE_DURATION;
3409  if (track->cluster[i].size != track->default_size)
3410  flags |= MOV_TRUN_SAMPLE_SIZE;
3411  if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3412  flags |= MOV_TRUN_SAMPLE_FLAGS;
3413  }
3414  if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3415  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3416  if (track->flags & MOV_TRACK_CTTS)
3417  flags |= MOV_TRUN_SAMPLE_CTS;
3418 
3419  avio_wb32(pb, 0); /* size placeholder */
3420  ffio_wfourcc(pb, "trun");
3421  avio_w8(pb, 0); /* version */
3422  avio_wb24(pb, flags);
3423 
3424  avio_wb32(pb, track->entry); /* sample count */
3425  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3427  !mov->first_trun)
3428  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3429  else
3430  avio_wb32(pb, moof_size + 8 + track->data_offset +
3431  track->cluster[0].pos); /* data offset */
3432  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3433  avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3434 
3435  for (i = 0; i < track->entry; i++) {
3436  if (flags & MOV_TRUN_SAMPLE_DURATION)
3437  avio_wb32(pb, get_cluster_duration(track, i));
3438  if (flags & MOV_TRUN_SAMPLE_SIZE)
3439  avio_wb32(pb, track->cluster[i].size);
3440  if (flags & MOV_TRUN_SAMPLE_FLAGS)
3441  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3442  if (flags & MOV_TRUN_SAMPLE_CTS)
3443  avio_wb32(pb, track->cluster[i].cts);
3444  }
3445 
3446  mov->first_trun = 0;
3447  return update_size(pb, pos);
3448 }
3449 
3450 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3451 {
3452  int64_t pos = avio_tell(pb);
3453  static const uint8_t uuid[] = {
3454  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3455  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3456  };
3457 
3458  avio_wb32(pb, 0); /* size placeholder */
3459  ffio_wfourcc(pb, "uuid");
3460  avio_write(pb, uuid, sizeof(uuid));
3461  avio_w8(pb, 1);
3462  avio_wb24(pb, 0);
3463  avio_wb64(pb, track->frag_start);
3464  avio_wb64(pb, track->start_dts + track->track_duration -
3465  track->cluster[0].dts);
3466 
3467  return update_size(pb, pos);
3468 }
3469 
3471  MOVTrack *track, int entry)
3472 {
3473  int n = track->nb_frag_info - 1 - entry, i;
3474  int size = 8 + 16 + 4 + 1 + 16*n;
3475  static const uint8_t uuid[] = {
3476  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3477  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3478  };
3479 
3480  if (entry < 0)
3481  return 0;
3482 
3483  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3484  avio_wb32(pb, size);
3485  ffio_wfourcc(pb, "uuid");
3486  avio_write(pb, uuid, sizeof(uuid));
3487  avio_w8(pb, 1);
3488  avio_wb24(pb, 0);
3489  avio_w8(pb, n);
3490  for (i = 0; i < n; i++) {
3491  int index = entry + 1 + i;
3492  avio_wb64(pb, track->frag_info[index].time);
3493  avio_wb64(pb, track->frag_info[index].duration);
3494  }
3495  if (n < mov->ism_lookahead) {
3496  int free_size = 16 * (mov->ism_lookahead - n);
3497  avio_wb32(pb, free_size);
3498  ffio_wfourcc(pb, "free");
3499  ffio_fill(pb, 0, free_size - 8);
3500  }
3501 
3502  return 0;
3503 }
3504 
3506  MOVTrack *track)
3507 {
3508  int64_t pos = avio_tell(pb);
3509  int i;
3510  for (i = 0; i < mov->ism_lookahead; i++) {
3511  /* Update the tfrf tag for the last ism_lookahead fragments,
3512  * nb_frag_info - 1 is the next fragment to be written. */
3513  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3514  }
3515  avio_seek(pb, pos, SEEK_SET);
3516  return 0;
3517 }
3518 
3519 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3520  int size)
3521 {
3522  int i;
3523  for (i = 0; i < mov->nb_streams; i++) {
3524  MOVTrack *track = &mov->tracks[i];
3525  MOVFragmentInfo *info;
3526  if ((tracks >= 0 && i != tracks) || !track->entry)
3527  continue;
3528  track->nb_frag_info++;
3529  if (track->nb_frag_info >= track->frag_info_capacity) {
3530  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3531  if (av_reallocp_array(&track->frag_info,
3532  new_capacity,
3533  sizeof(*track->frag_info)))
3534  return AVERROR(ENOMEM);
3535  track->frag_info_capacity = new_capacity;
3536  }
3537  info = &track->frag_info[track->nb_frag_info - 1];
3538  info->offset = avio_tell(pb);
3539  info->size = size;
3540  // Try to recreate the original pts for the first packet
3541  // from the fields we have stored
3542  info->time = track->start_dts + track->frag_start +
3543  track->cluster[0].cts;
3544  // If the pts is less than zero, we will have trimmed
3545  // away parts of the media track using an edit list,
3546  // and the corresponding start presentation time is zero.
3547  if (info->time < 0)
3548  info->time = 0;
3549  info->duration = track->start_dts + track->track_duration -
3550  track->cluster[0].dts;
3551  info->tfrf_offset = 0;
3552  mov_write_tfrf_tags(pb, mov, track);
3553  }
3554  return 0;
3555 }
3556 
3557 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3558 {
3559  int64_t pos = avio_tell(pb);
3560 
3561  avio_wb32(pb, 0); /* size */
3562  ffio_wfourcc(pb, "tfdt");
3563  avio_w8(pb, 1); /* version */
3564  avio_wb24(pb, 0);
3565  avio_wb64(pb, track->frag_start);
3566  return update_size(pb, pos);
3567 }
3568 
3570  MOVTrack *track, int64_t moof_offset,
3571  int moof_size)
3572 {
3573  int64_t pos = avio_tell(pb);
3574  avio_wb32(pb, 0); /* size placeholder */
3575  ffio_wfourcc(pb, "traf");
3576 
3577  mov_write_tfhd_tag(pb, mov, track, moof_offset);
3578  if (mov->mode != MODE_ISM)
3579  mov_write_tfdt_tag(pb, track);
3580  mov_write_trun_tag(pb, mov, track, moof_size);
3581  if (mov->mode == MODE_ISM) {
3582  mov_write_tfxd_tag(pb, track);
3583 
3584  if (mov->ism_lookahead) {
3585  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3586 
3587  if (track->nb_frag_info > 0) {
3588  MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3589  if (!info->tfrf_offset)
3590  info->tfrf_offset = avio_tell(pb);
3591  }
3592  avio_wb32(pb, 8 + size);
3593  ffio_wfourcc(pb, "free");
3594  for (i = 0; i < size; i++)
3595  avio_w8(pb, 0);
3596  }
3597  }
3598 
3599  return update_size(pb, pos);
3600 }
3601 
3603  int tracks, int moof_size)
3604 {
3605  int64_t pos = avio_tell(pb);
3606  int i;
3607 
3608  avio_wb32(pb, 0); /* size placeholder */
3609  ffio_wfourcc(pb, "moof");
3610  mov->first_trun = 1;
3611 
3612  mov_write_mfhd_tag(pb, mov);
3613  for (i = 0; i < mov->nb_streams; i++) {
3614  MOVTrack *track = &mov->tracks[i];
3615  if (tracks >= 0 && i != tracks)
3616  continue;
3617  if (!track->entry)
3618  continue;
3619  mov_write_traf_tag(pb, mov, track, pos, moof_size);
3620  }
3621 
3622  return update_size(pb, pos);
3623 }
3624 
3626  MOVTrack *track, int ref_size, int total_sidx_size)
3627 {
3628  int64_t pos = avio_tell(pb), offset_pos, end_pos;
3629  int64_t presentation_time, duration, offset;
3630  int starts_with_SAP, i, entries;
3631 
3632  if (track->entry) {
3633  entries = 1;
3634  presentation_time = track->start_dts + track->frag_start +
3635  track->cluster[0].cts;
3636  duration = track->start_dts + track->track_duration -
3637  track->cluster[0].dts;
3638  starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3639  } else {
3640  entries = track->nb_frag_info;
3641  presentation_time = track->frag_info[0].time;
3642  }
3643 
3644  // pts<0 should be cut away using edts
3645  if (presentation_time < 0)
3646  presentation_time = 0;
3647 
3648  avio_wb32(pb, 0); /* size */
3649  ffio_wfourcc(pb, "sidx");
3650  avio_w8(pb, 1); /* version */
3651  avio_wb24(pb, 0);
3652  avio_wb32(pb, track->track_id); /* reference_ID */
3653  avio_wb32(pb, track->timescale); /* timescale */
3654  avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3655  offset_pos = avio_tell(pb);
3656  avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3657  avio_wb16(pb, 0); /* reserved */
3658 
3659  avio_wb16(pb, entries); /* reference_count */
3660  for (i = 0; i < entries; i++) {
3661  if (!track->entry) {
3662  if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3663  av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3664  }
3665  duration = track->frag_info[i].duration;
3666  ref_size = track->frag_info[i].size;
3667  starts_with_SAP = 1;
3668  }
3669  avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3670  avio_wb32(pb, duration); /* subsegment_duration */
3671  avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3672  }
3673 
3674  end_pos = avio_tell(pb);
3675  offset = pos + total_sidx_size - end_pos;
3676  avio_seek(pb, offset_pos, SEEK_SET);
3677  avio_wb64(pb, offset);
3678  avio_seek(pb, end_pos, SEEK_SET);
3679  return update_size(pb, pos);
3680 }
3681 
3683  int tracks, int ref_size)
3684 {
3685  int i, round, ret;
3686  AVIOContext *avio_buf;
3687  int total_size = 0;
3688  for (round = 0; round < 2; round++) {
3689  // First run one round to calculate the total size of all
3690  // sidx atoms.
3691  // This would be much simpler if we'd only write one sidx
3692  // atom, for the first track in the moof.
3693  if (round == 0) {
3694  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3695  return ret;
3696  } else {
3697  avio_buf = pb;
3698  }
3699  for (i = 0; i < mov->nb_streams; i++) {
3700  MOVTrack *track = &mov->tracks[i];
3701  if (tracks >= 0 && i != tracks)
3702  continue;
3703  // When writing a sidx for the full file, entry is 0, but
3704  // we want to include all tracks. ref_size is 0 in this case,
3705  // since we read it from frag_info instead.
3706  if (!track->entry && ref_size > 0)
3707  continue;
3708  total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3709  total_size);
3710  }
3711  if (round == 0)
3712  total_size = ffio_close_null_buf(avio_buf);
3713  }
3714  return 0;
3715 }
3716 
3717 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3718  int64_t mdat_size)
3719 {
3720  AVIOContext *avio_buf;
3721  int ret, moof_size;
3722 
3723  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3724  return ret;
3725  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3726  moof_size = ffio_close_null_buf(avio_buf);
3727 
3728  if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
3729  mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3730 
3731  if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3732  return ret;
3733 
3734  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3735 }
3736 
3737 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3738 {
3739  int64_t pos = avio_tell(pb);
3740  int i;
3741 
3742  avio_wb32(pb, 0); /* size placeholder */
3743  ffio_wfourcc(pb, "tfra");
3744  avio_w8(pb, 1); /* version */
3745  avio_wb24(pb, 0);
3746 
3747  avio_wb32(pb, track->track_id);
3748  avio_wb32(pb, 0); /* length of traf/trun/sample num */
3749  avio_wb32(pb, track->nb_frag_info);
3750  for (i = 0; i < track->nb_frag_info; i++) {
3751  avio_wb64(pb, track->frag_info[i].time);
3752  avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3753  avio_w8(pb, 1); /* traf number */
3754  avio_w8(pb, 1); /* trun number */
3755  avio_w8(pb, 1); /* sample number */
3756  }
3757 
3758  return update_size(pb, pos);
3759 }
3760 
3762 {
3763  int64_t pos = avio_tell(pb);
3764  int i;
3765 
3766  avio_wb32(pb, 0); /* size placeholder */
3767  ffio_wfourcc(pb, "mfra");
3768  /* An empty mfra atom is enough to indicate to the publishing point that
3769  * the stream has ended. */
3770  if (mov->flags & FF_MOV_FLAG_ISML)
3771  return update_size(pb, pos);
3772 
3773  for (i = 0; i < mov->nb_streams; i++) {
3774  MOVTrack *track = &mov->tracks[i];
3775  if (track->nb_frag_info)
3776  mov_write_tfra_tag(pb, track);
3777  }
3778 
3779  avio_wb32(pb, 16);
3780  ffio_wfourcc(pb, "mfro");
3781  avio_wb32(pb, 0); /* version + flags */
3782  avio_wb32(pb, avio_tell(pb) + 4 - pos);
3783 
3784  return update_size(pb, pos);
3785 }
3786 
3788 {
3789  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3790  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3791 
3792  mov->mdat_pos = avio_tell(pb);
3793  avio_wb32(pb, 0); /* size placeholder*/
3794  ffio_wfourcc(pb, "mdat");
3795  return 0;
3796 }
3797 
3798 /* TODO: This needs to be more general */
3800 {
3801  MOVMuxContext *mov = s->priv_data;
3802  int64_t pos = avio_tell(pb);
3803  int has_h264 = 0, has_video = 0;
3804  int minor = 0x200;
3805  int i;
3806 
3807  for (i = 0; i < s->nb_streams; i++) {
3808  AVStream *st = s->streams[i];
3809  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3810  has_video = 1;
3811  if (st->codec->codec_id == AV_CODEC_ID_H264)
3812  has_h264 = 1;
3813  }
3814 
3815  avio_wb32(pb, 0); /* size */
3816  ffio_wfourcc(pb, "ftyp");
3817 
3818  if (mov->major_brand && strlen(mov->major_brand) >= 4)
3819  ffio_wfourcc(pb, mov->major_brand);
3820  else if (mov->mode == MODE_3GP) {
3821  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3822  minor = has_h264 ? 0x100 : 0x200;
3823  } else if (mov->mode & MODE_3G2) {
3824  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3825  minor = has_h264 ? 0x20000 : 0x10000;
3826  } else if (mov->mode == MODE_PSP)
3827  ffio_wfourcc(pb, "MSNV");
3828  else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3829  ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3830  else if (mov->mode == MODE_MP4)
3831  ffio_wfourcc(pb, "isom");
3832  else if (mov->mode == MODE_IPOD)
3833  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3834  else if (mov->mode == MODE_ISM)
3835  ffio_wfourcc(pb, "isml");
3836  else if (mov->mode == MODE_F4V)
3837  ffio_wfourcc(pb, "f4v ");
3838  else
3839  ffio_wfourcc(pb, "qt ");
3840 
3841  avio_wb32(pb, minor);
3842 
3843  if (mov->mode == MODE_MOV)
3844  ffio_wfourcc(pb, "qt ");
3845  else if (mov->mode == MODE_ISM) {
3846  ffio_wfourcc(pb, "piff");
3847  } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3848  ffio_wfourcc(pb, "isom");
3849  ffio_wfourcc(pb, "iso2");
3850  if (has_h264)
3851  ffio_wfourcc(pb, "avc1");
3852  }
3853 
3854  // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3855  // brand. This is compatible with users that don't understand tfdt.
3856  if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3857  ffio_wfourcc(pb, "iso6");
3858 
3859  if (mov->mode == MODE_3GP)
3860  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3861  else if (mov->mode & MODE_3G2)
3862  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3863  else if (mov->mode == MODE_PSP)
3864  ffio_wfourcc(pb, "MSNV");
3865  else if (mov->mode == MODE_MP4)
3866  ffio_wfourcc(pb, "mp41");
3867 
3868  if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
3869  ffio_wfourcc(pb, "dash");
3870 
3871  return update_size(pb, pos);
3872 }
3873 
3875 {
3876  AVStream *video_st = s->streams[0];
3877  AVCodecContext *video_codec = s->streams[0]->codec;
3878  AVCodecContext *audio_codec = s->streams[1]->codec;
3879  int audio_rate = audio_codec->sample_rate;
3880  // TODO: should be avg_frame_rate
3881  int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3882  int audio_kbitrate = audio_codec->bit_rate / 1000;
3883  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3884 
3885  avio_wb32(pb, 0x94); /* size */
3886  ffio_wfourcc(pb, "uuid");
3887  ffio_wfourcc(pb, "PROF");
3888 
3889  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3890  avio_wb32(pb, 0xbb88695c);
3891  avio_wb32(pb, 0xfac9c740);
3892 
3893  avio_wb32(pb, 0x0); /* ? */
3894  avio_wb32(pb, 0x3); /* 3 sections ? */
3895 
3896  avio_wb32(pb, 0x14); /* size */
3897  ffio_wfourcc(pb, "FPRF");
3898  avio_wb32(pb, 0x0); /* ? */
3899  avio_wb32(pb, 0x0); /* ? */
3900  avio_wb32(pb, 0x0); /* ? */
3901 
3902  avio_wb32(pb, 0x2c); /* size */
3903  ffio_wfourcc(pb, "APRF"); /* audio */
3904  avio_wb32(pb, 0x0);
3905  avio_wb32(pb, 0x2); /* TrackID */
3906  ffio_wfourcc(pb, "mp4a");
3907  avio_wb32(pb, 0x20f);
3908  avio_wb32(pb, 0x0);
3909  avio_wb32(pb, audio_kbitrate);
3910  avio_wb32(pb, audio_kbitrate);
3911  avio_wb32(pb, audio_rate);
3912  avio_wb32(pb, audio_codec->channels);
3913 
3914  avio_wb32(pb, 0x34); /* size */
3915  ffio_wfourcc(pb, "VPRF"); /* video */
3916  avio_wb32(pb, 0x0);
3917  avio_wb32(pb, 0x1); /* TrackID */
3918  if (video_codec->codec_id == AV_CODEC_ID_H264) {
3919  ffio_wfourcc(pb, "avc1");
3920  avio_wb16(pb, 0x014D);
3921  avio_wb16(pb, 0x0015);
3922  } else {
3923  ffio_wfourcc(pb, "mp4v");
3924  avio_wb16(pb, 0x0000);
3925  avio_wb16(pb, 0x0103);
3926  }
3927  avio_wb32(pb, 0x0);
3928  avio_wb32(pb, video_kbitrate);
3929  avio_wb32(pb, video_kbitrate);
3930  avio_wb32(pb, frame_rate);
3931  avio_wb32(pb, frame_rate);
3932  avio_wb16(pb, video_codec->width);
3933  avio_wb16(pb, video_codec->height);
3934  avio_wb32(pb, 0x010001); /* ? */
3935 }
3936 
3938 {
3939  MOVMuxContext *mov = s->priv_data;
3940  int i;
3941 
3942  mov_write_ftyp_tag(pb,s);
3943  if (mov->mode == MODE_PSP) {
3944  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3945  for (i = 0; i < s->nb_streams; i++) {
3946  AVStream *st = s->streams[i];
3947  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3948  video_streams_nb++;
3949  else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3950  audio_streams_nb++;
3951  else
3952  other_streams_nb++;
3953  }
3954 
3955  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3956  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3957  return AVERROR(EINVAL);
3958  }
3959  mov_write_uuidprof_tag(pb, s);
3960  }
3961  return 0;
3962 }
3963 
3964 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3965 {
3966  uint32_t c = -1;
3967  int i, closed_gop = 0;
3968 
3969  for (i = 0; i < pkt->size - 4; i++) {
3970  c = (c << 8) + pkt->data[i];
3971  if (c == 0x1b8) { // gop
3972  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3973  } else if (c == 0x100) { // pic
3974  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3975  if (!temp_ref || closed_gop) // I picture is not reordered
3976  *flags = MOV_SYNC_SAMPLE;
3977  else
3978  *flags = MOV_PARTIAL_SYNC_SAMPLE;
3979  break;
3980  }
3981  }
3982  return 0;
3983 }
3984 
3985 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3986 {
3987  const uint8_t *start, *next, *end = pkt->data + pkt->size;
3988  int seq = 0, entry = 0;
3989  int key = pkt->flags & AV_PKT_FLAG_KEY;
3990  start = find_next_marker(pkt->data, end);
3991  for (next = start; next < end; start = next) {
3992  next = find_next_marker(start + 4, end);
3993  switch (AV_RB32(start)) {
3994  case VC1_CODE_SEQHDR:
3995  seq = 1;
3996  break;
3997  case VC1_CODE_ENTRYPOINT:
3998  entry = 1;
3999  break;
4000  case VC1_CODE_SLICE:
4001  trk->vc1_info.slices = 1;
4002  break;
4003  }
4004  }
4005  if (!trk->entry && !fragment) {
4006  /* First packet in first fragment */
4007  trk->vc1_info.first_packet_seq = seq;
4008  trk->vc1_info.first_packet_entry = entry;
4009  } else if ((seq && !trk->vc1_info.packet_seq) ||
4010  (entry && !trk->vc1_info.packet_entry)) {
4011  int i;
4012  for (i = 0; i < trk->entry; i++)
4013  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4014  trk->has_keyframes = 0;
4015  if (seq)
4016  trk->vc1_info.packet_seq = 1;
4017  if (entry)
4018  trk->vc1_info.packet_entry = 1;
4019  if (!fragment) {
4020  /* First fragment */
4021  if ((!seq || trk->vc1_info.first_packet_seq) &&
4022  (!entry || trk->vc1_info.first_packet_entry)) {
4023  /* First packet had the same headers as this one, readd the
4024  * sync sample flag. */
4025  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4026  trk->has_keyframes = 1;
4027  }
4028  }
4029  }
4030  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4031  key = seq && entry;
4032  else if (trk->vc1_info.packet_seq)
4033  key = seq;
4034  else if (trk->vc1_info.packet_entry)
4035  key = entry;
4036  if (key) {
4037  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4038  trk->has_keyframes++;
4039  }
4040 }
4041 
4043 {
4044  MOVMuxContext *mov = s->priv_data;
4045  int i, first_track = -1;
4046  int64_t mdat_size = 0;
4047  int ret;
4048 
4049  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4050  return 0;
4051 
4052  if (mov->fragments == 0) {
4053  int64_t pos = avio_tell(s->pb);
4054  uint8_t *buf;
4055  int buf_size, moov_size;
4056 
4057  for (i = 0; i < mov->nb_streams; i++)
4058  if (!mov->tracks[i].entry)
4059  break;
4060  /* Don't write the initial moov unless all tracks have data */
4061  if (i < mov->nb_streams)
4062  return 0;
4063 
4064  moov_size = get_moov_size(s);
4065  for (i = 0; i < mov->nb_streams; i++)
4066  mov->tracks[i].data_offset = pos + moov_size + 8;
4067 
4070  if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4071  return ret;
4072 
4073  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4074  if (mov->flags & FF_MOV_FLAG_FASTSTART)
4075  mov->reserved_moov_pos = avio_tell(s->pb);
4076  avio_flush(s->pb);
4077  mov->fragments++;
4078  return 0;
4079  }
4080 
4081  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4082  mov->mdat_buf = NULL;
4083  avio_wb32(s->pb, buf_size + 8);
4084  ffio_wfourcc(s->pb, "mdat");
4085  avio_write(s->pb, buf, buf_size);
4086  av_free(buf);
4087 
4088  mov->fragments++;
4089  mov->mdat_size = 0;
4090  for (i = 0; i < mov->nb_streams; i++) {
4091  if (mov->tracks[i].entry)
4092  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4093  mov->tracks[i].track_duration -
4094  mov->tracks[i].cluster[0].dts;
4095  mov->tracks[i].entry = 0;
4096  }
4097  avio_flush(s->pb);
4098  return 0;
4099  }
4100 
4101  for (i = 0; i < mov->nb_streams; i++) {
4102  MOVTrack *track = &mov->tracks[i];
4103  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
4104  track->data_offset = 0;
4105  else
4106  track->data_offset = mdat_size;
4107  if (!track->mdat_buf)
4108  continue;
4109  mdat_size += avio_tell(track->mdat_buf);
4110  if (first_track < 0)
4111  first_track = i;
4112  }
4113 
4114  if (!mdat_size)
4115  return 0;
4116 
4117  for (i = 0; i < mov->nb_streams; i++) {
4118  MOVTrack *track = &mov->tracks[i];
4119  int buf_size, write_moof = 1, moof_tracks = -1;
4120  uint8_t *buf;
4121  int64_t duration = 0;
4122 
4123  if (track->entry)
4124  duration = track->start_dts + track->track_duration -
4125  track->cluster[0].dts;
4126  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4127  if (!track->mdat_buf)
4128  continue;
4129  mdat_size = avio_tell(track->mdat_buf);
4130  moof_tracks = i;
4131  } else {
4132  write_moof = i == first_track;
4133  }
4134 
4135  if (write_moof) {
4136  avio_flush(s->pb);
4137 
4138  mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4139  mov->fragments++;
4140 
4141  avio_wb32(s->pb, mdat_size + 8);
4142  ffio_wfourcc(s->pb, "mdat");
4143  }
4144 
4145  if (track->entry)
4146  track->frag_start += duration;
4147  track->entry = 0;
4148  if (!track->mdat_buf)
4149  continue;
4150  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4151  track->mdat_buf = NULL;
4152 
4153  avio_write(s->pb, buf, buf_size);
4154  av_free(buf);
4155  }
4156 
4157  mov->mdat_size = 0;
4158 
4159  avio_flush(s->pb);
4160  return 0;
4161 }
4162 
4164 {
4165  MOVMuxContext *mov = s->priv_data;
4166  int ret = mov_flush_fragment(s);
4167  if (ret < 0)
4168  return ret;
4169  // If using delay_moov, the first flush only wrote the moov,
4170  // not the actual moof+mdat pair, thus flush once again.
4171  if (mov->fragments == 1 && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4172  ret = mov_flush_fragment(s);
4173  return ret;
4174 }
4175 
4177 {
4178  MOVMuxContext *mov = s->priv_data;
4179  AVIOContext *pb = s->pb;
4180  MOVTrack *trk = &mov->tracks[pkt->stream_index];
4181  AVCodecContext *enc = trk->enc;
4182  unsigned int samples_in_chunk = 0;
4183  int size = pkt->size, ret = 0;
4184  uint8_t *reformatted_data = NULL;
4185 
4186  if (trk->entry) {
4187  int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4188  if (duration < 0 || duration > INT_MAX) {
4189  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4190  duration, pkt->dts
4191  );
4192 
4193  pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4194  pkt->pts = AV_NOPTS_VALUE;
4195  }
4196  if (pkt->duration < 0) {
4197  av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4198  return AVERROR(EINVAL);
4199  }
4200  }
4201  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4202  int ret;
4203  if (mov->fragments > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4204  if (!trk->mdat_buf) {
4205  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4206  return ret;
4207  }
4208  pb = trk->mdat_buf;
4209  } else {
4210  if (!mov->mdat_buf) {
4211  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4212  return ret;
4213  }
4214  pb = mov->mdat_buf;
4215  }
4216  }
4217 
4218  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4219  /* We must find out how many AMR blocks there are in one packet */
4220  static uint16_t packed_size[16] =
4221  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4222  int len = 0;
4223 
4224  while (len < size && samples_in_chunk < 100) {
4225  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4226  samples_in_chunk++;
4227  }
4228  if (samples_in_chunk > 1) {
4229  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4230  return -1;
4231  }
4232  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4234  samples_in_chunk = enc->frame_size;
4235  } else if (trk->sample_size)
4236  samples_in_chunk = size / trk->sample_size;
4237  else
4238  samples_in_chunk = 1;
4239 
4240  /* copy extradata if it exists */
4241  if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4242  !TAG_IS_AVCI(trk->tag) &&
4243  (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4244  trk->vos_len = enc->extradata_size;
4245  trk->vos_data = av_malloc(trk->vos_len);
4246  if (!trk->vos_data) {
4247  ret = AVERROR(ENOMEM);
4248  goto err;
4249  }
4250  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4251  }
4252 
4253  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4254  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4255  if (!s->streams[pkt->stream_index]->nb_frames) {
4256  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4257  "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4258  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4259  return -1;
4260  }
4261  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4262  }
4263  if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4264  /* from x264 or from bytestream h264 */
4265  /* nal reformating needed */
4266  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4267  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4268  &size);
4269  avio_write(pb, reformatted_data, size);
4270  } else {
4271  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4272  }
4273  } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4274  (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4275  /* extradata is Annex B, assume the bitstream is too and convert it */
4276  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4277  ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4278  avio_write(pb, reformatted_data, size);
4279  } else {
4280  size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4281  }
4282 #if CONFIG_AC3_PARSER
4283  } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4284  size = handle_eac3(mov, pkt, trk);
4285  if (size < 0)
4286  return size;
4287  else if (!size)
4288  goto end;
4289  avio_write(pb, pkt->data, size);
4290 #endif
4291  } else {
4292  avio_write(pb, pkt->data, size);
4293  }
4294 
4295  if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4296  enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4297  /* copy frame to create needed atoms */
4298  trk->vos_len = size;
4299  trk->vos_data = av_malloc(size);
4300  if (!trk->vos_data) {
4301  ret = AVERROR(ENOMEM);
4302  goto err;
4303  }
4304  memcpy(trk->vos_data, pkt->data, size);
4305  }
4306 
4307  if (trk->entry >= trk->cluster_capacity) {
4308  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4309  if (av_reallocp_array(&trk->cluster, new_capacity,
4310  sizeof(*trk->cluster))) {
4311  ret = AVERROR(ENOMEM);
4312  goto err;
4313  }
4314  trk->cluster_capacity = new_capacity;
4315  }
4316 
4317  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4318  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4319  trk->cluster[trk->entry].chunkNum = 0;
4320  trk->cluster[trk->entry].size = size;
4321  trk->cluster[trk->entry].entries = samples_in_chunk;
4322  trk->cluster[trk->entry].dts = pkt->dts;
4323  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4324  if (!trk->frag_discont) {
4325  /* First packet of a new fragment. We already wrote the duration
4326  * of the last packet of the previous fragment based on track_duration,
4327  * which might not exactly match our dts. Therefore adjust the dts
4328  * of this packet to be what the previous packets duration implies. */
4329  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4330  /* We also may have written the pts and the corresponding duration
4331  * in sidx tags; make sure the sidx pts and duration match up with
4332  * the next fragment. This means the cts of the first sample must
4333  * be the same in all fragments. */
4334  pkt->pts = pkt->dts + trk->start_cts;
4335  } else {
4336  /* New fragment, but discontinuous from previous fragments.
4337  * Pretend the duration sum of the earlier fragments is
4338  * pkt->dts - trk->start_dts. */
4339  trk->frag_start = pkt->dts - trk->start_dts;
4340  trk->frag_discont = 0;
4341  }
4342  }
4343 
4344  if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4346  /* Not using edit lists and shifting the first track to start from zero.
4347  * If the other streams start from a later timestamp, we won't be able
4348  * to signal the difference in starting time without an edit list.
4349  * Thus move the timestamp for this first sample to 0, increasing
4350  * its duration instead. */
4351  trk->cluster[trk->entry].dts = trk->start_dts = 0;
4352  }
4353  if (trk->start_dts == AV_NOPTS_VALUE) {
4354  trk->start_dts = pkt->dts;
4355  if (trk->frag_discont) {
4356  /* Pretend the whole stream started at dts=0, with earlier fragments
4357  * already written, with a duration summing up to pkt->dts. */
4358  trk->frag_start = pkt->dts;
4359  trk->start_dts = 0;
4360  trk->frag_discont = 0;
4361  } else if (pkt->dts && mov->fragments >= 1)
4363  "Track %d starts with a nonzero dts %"PRId64", while the moov "
4364  "already has been written. Set the delay_moov flag to handle "
4365  "this case.\n",
4366  pkt->stream_index, pkt->dts);
4367  }
4368  trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4369  trk->last_sample_is_subtitle_end = 0;
4370 
4371  if (pkt->pts == AV_NOPTS_VALUE) {
4372  av_log(s, AV_LOG_WARNING, "pts has no value\n");
4373  pkt->pts = pkt->dts;
4374  }
4375  if (pkt->dts != pkt->pts)
4376  trk->flags |= MOV_TRACK_CTTS;
4377  trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4378  trk->cluster[trk->entry].flags = 0;
4379  if (trk->start_cts == AV_NOPTS_VALUE)
4380  trk->start_cts = pkt->pts - pkt->dts;
4381 
4382  if (enc->codec_id == AV_CODEC_ID_VC1) {
4383  mov_parse_vc1_frame(pkt, trk, mov->fragments);
4384  } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4385  if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4386  trk->entry > 0) { // force sync sample for the first key frame
4387  mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4388  if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4389  trk->flags |= MOV_TRACK_STPS;
4390  } else {
4391  trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4392  }
4393  if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4394  trk->has_keyframes++;
4395  }
4396  trk->entry++;
4397  trk->sample_count += samples_in_chunk;
4398  mov->mdat_size += size;
4399 
4400  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4401  ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4402  reformatted_data, size);
4403 
4404 end:
4405 err:
4406 
4407  av_free(reformatted_data);
4408  return ret;
4409 }
4410 
4412 {
4413  MOVMuxContext *mov = s->priv_data;
4414  MOVTrack *trk = &mov->tracks[pkt->stream_index];
4415  AVCodecContext *enc = trk->enc;
4416  int64_t frag_duration = 0;
4417  int size = pkt->size;
4418 
4419  if (!pkt->size)
4420  return 0; /* Discard 0 sized packets */
4421 
4422  if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4423  int i;
4424  for (i = 0; i < s->nb_streams; i++)
4425  mov->tracks[i].frag_discont = 1;
4427  }
4428 
4429  if (trk->entry && pkt->stream_index < s->nb_streams)
4430  frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4431  s->streams[pkt->stream_index]->time_base,
4432  AV_TIME_BASE_Q);
4433  if ((mov->max_fragment_duration &&
4434  frag_duration >= mov->max_fragment_duration) ||
4435  (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4436  (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4437  enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4438  trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4439  if (frag_duration >= mov->min_fragment_duration)
4441  }
4442 
4443  return ff_mov_write_packet(s, pkt);
4444 }
4445 
4447  int stream_index,
4448  int64_t dts) {
4449  AVPacket end;
4450  uint8_t data[2] = {0};
4451  int ret;
4452 
4453  av_init_packet(&end);
4454  end.size = sizeof(data);
4455  end.data = data;
4456  end.pts = dts;
4457  end.dts = dts;
4458  end.duration = 0;
4459  end.stream_index = stream_index;
4460 
4461  ret = mov_write_single_packet(s, &end);
4462  av_free_packet(&end);
4463 
4464  return ret;
4465 }
4466 
4468 {
4469  if (!pkt) {
4470  mov_flush_fragment(s);
4471  return 1;
4472  } else {
4473  int i;
4474  MOVMuxContext *mov = s->priv_data;
4475 
4476  if (!pkt->size) return 0; /* Discard 0 sized packets */
4477 
4478  /*
4479  * Subtitles require special handling.
4480  *
4481  * 1) For full complaince, every track must have a sample at
4482  * dts == 0, which is rarely true for subtitles. So, as soon
4483  * as we see any packet with dts > 0, write an empty subtitle
4484  * at dts == 0 for any subtitle track with no samples in it.
4485  *
4486  * 2) For each subtitle track, check if the current packet's
4487  * dts is past the duration of the last subtitle sample. If
4488  * so, we now need to write an end sample for that subtitle.
4489  *
4490  * This must be done conditionally to allow for subtitles that
4491  * immediately replace each other, in which case an end sample
4492  * is not needed, and is, in fact, actively harmful.
4493  *
4494  * 3) See mov_write_trailer for how the final end sample is
4495  * handled.
4496  */
4497  for (i = 0; i < mov->nb_streams; i++) {
4498  MOVTrack *trk = &mov->tracks[i];
4499  int ret;
4500 
4501  if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4502  trk->track_duration < pkt->dts &&
4503  (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4505  if (ret < 0) return ret;
4506  trk->last_sample_is_subtitle_end = 1;
4507  }
4508  }
4509 
4510  return mov_write_single_packet(s, pkt);
4511  }
4512 }
4513 
4514 // QuickTime chapters involve an additional text track with the chapter names
4515 // as samples, and a tref pointing from the other tracks to the chapter one.
4516 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4517 {
4518  AVIOContext *pb;
4519 
4520  MOVMuxContext *mov = s->priv_data;
4521  MOVTrack *track = &mov->tracks[tracknum];
4522  AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4523  int i, len;
4524 
4525  track->mode = mov->mode;
4526  track->tag = MKTAG('t','e','x','t');
4527  track->timescale = MOV_TIMESCALE;
4528  track->enc = avcodec_alloc_context3(NULL);
4529  if (!track->enc)
4530  return AVERROR(ENOMEM);
4532 #if 0
4533  // These properties are required to make QT recognize the chapter track
4534  uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4535  if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4536  return AVERROR(ENOMEM);
4537  memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4538 #else
4539  if (avio_open_dyn_buf(&pb) >= 0) {
4540  int size;
4541  uint8_t *buf;
4542 
4543  /* Stub header (usually for Quicktime chapter track) */
4544  // TextSampleEntry
4545  avio_wb32(pb, 0x01); // displayFlags
4546  avio_w8(pb, 0x00); // horizontal justification
4547  avio_w8(pb, 0x00); // vertical justification
4548  avio_w8(pb, 0x00); // bgColourRed
4549  avio_w8(pb, 0x00); // bgColourGreen
4550  avio_w8(pb, 0x00); // bgColourBlue
4551  avio_w8(pb, 0x00); // bgColourAlpha
4552  // BoxRecord
4553  avio_wb16(pb, 0x00); // defTextBoxTop
4554  avio_wb16(pb, 0x00); // defTextBoxLeft
4555  avio_wb16(pb, 0x00); // defTextBoxBottom
4556  avio_wb16(pb, 0x00); // defTextBoxRight
4557  // StyleRecord
4558  avio_wb16(pb, 0x00); // startChar
4559  avio_wb16(pb, 0x00); // endChar
4560  avio_wb16(pb, 0x01); // fontID
4561  avio_w8(pb, 0x00); // fontStyleFlags
4562  avio_w8(pb, 0x00); // fontSize
4563  avio_w8(pb, 0x00); // fgColourRed
4564  avio_w8(pb, 0x00); // fgColourGreen
4565  avio_w8(pb, 0x00); // fgColourBlue
4566  avio_w8(pb, 0x00); // fgColourAlpha
4567  // FontTableBox
4568  avio_wb32(pb, 0x0D); // box size
4569  ffio_wfourcc(pb, "ftab"); // box atom name
4570  avio_wb16(pb, 0x01); // entry count
4571  // FontRecord
4572  avio_wb16(pb, 0x01); // font ID
4573  avio_w8(pb, 0x00); // font name length
4574 
4575  if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4576  track->enc->extradata = buf;
4577  track->enc->extradata_size = size;
4578  } else {
4579  av_freep(&buf);
4580  }
4581  }
4582 #endif
4583 
4584  for (i = 0; i < s->nb_chapters; i++) {
4585  AVChapter *c = s->chapters[i];
4586  AVDictionaryEntry *t;
4587 
4588  int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4589  pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4590  pkt.duration = end - pkt.dts;
4591 
4592  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4593  const char encd[12] = {
4594  0x00, 0x00, 0x00, 0x0C,
4595  'e', 'n', 'c', 'd',
4596  0x00, 0x00, 0x01, 0x00 };
4597  len = strlen(t->value);
4598  pkt.size = len + 2 + 12;
4599  pkt.data = av_malloc(pkt.size);
4600  if (!pkt.data)
4601  return AVERROR(ENOMEM);
4602  AV_WB16(pkt.data, len);
4603  memcpy(pkt.data + 2, t->value, len);
4604  memcpy(pkt.data + len + 2, encd, sizeof(encd));
4605  ff_mov_write_packet(s, &pkt);
4606  av_freep(&pkt.data);
4607  }
4608  }
4609 
4610  return 0;
4611 }
4612 
4613 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4614 {
4615  int ret;
4616  MOVMuxContext *mov = s->priv_data;
4617  MOVTrack *track = &mov->tracks[index];
4618  AVStream *src_st = s->streams[src_index];
4619  AVTimecode tc;
4620  AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4621  AVRational rate = find_fps(s, src_st);
4622 
4623  /* compute the frame number */
4624  ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4625  if (ret < 0)
4626  return ret;
4627 
4628  /* tmcd track based on video stream */
4629  track->mode = mov->mode;
4630  track->tag = MKTAG('t','m','c','d');
4631  track->src_track = src_index;
4632  track->timescale = mov->tracks[src_index].timescale;
4635 
4636  /* set st to src_st for metadata access*/
4637  track->st = src_st;
4638 
4639  /* encode context: tmcd data stream */
4640  track->enc = avcodec_alloc_context3(NULL);
4641  if (!track->enc)
4642  return AVERROR(ENOMEM);
4643  track->enc->codec_type = AVMEDIA_TYPE_DATA;
4644  track->enc->codec_tag = track->tag;
4645  track->enc->time_base = av_inv_q(rate);
4646 
4647  /* the tmcd track just contains one packet with the frame number */
4648  pkt.data = av_malloc(pkt.size);
4649  if (!pkt.data)
4650  return AVERROR(ENOMEM);
4651  AV_WB32(pkt.data, tc.start);
4652  ret = ff_mov_write_packet(s, &pkt);
4653  av_free(pkt.data);
4654  return ret;
4655 }
4656 
4657 /*
4658  * st->disposition controls the "enabled" flag in the tkhd tag.
4659  * QuickTime will not play a track if it is not enabled. So make sure
4660  * that one track of each type (audio, video, subtitle) is enabled.
4661  *
4662  * Subtitles are special. For audio and video, setting "enabled" also
4663  * makes the track "default" (i.e. it is rendered when played). For
4664  * subtitles, an "enabled" subtitle is not rendered by default, but
4665  * if no subtitle is enabled, the subtitle menu in QuickTime will be
4666  * empty!
4667  */
4669 {
4670  MOVMuxContext *mov = s->priv_data;
4671  int i;
4672  int enabled[AVMEDIA_TYPE_NB];
4673  int first[AVMEDIA_TYPE_NB];
4674 
4675  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4676  enabled[i] = 0;
4677  first[i] = -1;
4678  }
4679 
4680  for (i = 0; i < s->nb_streams; i++) {
4681  AVStream *st = s->streams[i];
4682 
4683  if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4684  st->codec->codec_type >= AVMEDIA_TYPE_NB)
4685  continue;
4686 
4687  if (first[st->codec->codec_type] < 0)
4688  first[st->codec->codec_type] = i;
4689  if (st->disposition & AV_DISPOSITION_DEFAULT) {
4690  mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4691  enabled[st->codec->codec_type]++;
4692  }
4693  }
4694 
4695  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4696  switch (i) {
4697  case AVMEDIA_TYPE_VIDEO:
4698  case AVMEDIA_TYPE_AUDIO:
4699  case AVMEDIA_TYPE_SUBTITLE:
4700  if (enabled[i] > 1)
4701  mov->per_stream_grouping = 1;
4702  if (!enabled[i] && first[i] >= 0)
4703  mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4704  break;
4705  }
4706  }
4707 }
4708 
4710 {
4711  MOVMuxContext *mov = s->priv_data;
4712  int i;
4713 
4714  if (mov->chapter_track) {
4715  if (mov->tracks[mov->chapter_track].enc)
4716  av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4717  av_freep(&mov->tracks[mov->chapter_track].enc);
4718  }
4719 
4720  for (i = 0; i < mov->nb_streams; i++) {
4721  if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4722  ff_mov_close_hinting(&mov->tracks[i]);
4723  else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4724  av_freep(&mov->tracks[i].enc);
4725  av_freep(&mov->tracks[i].cluster);
4726  av_freep(&mov->tracks[i].frag_info);
4727 
4728  if (mov->tracks[i].vos_len)
4729  av_freep(&mov->tracks[i].vos_data);
4730  }
4731 
4732  av_freep(&mov->tracks);
4733 }
4734 
4735 static uint32_t rgb_to_yuv(uint32_t rgb)
4736 {
4737  uint8_t r, g, b;
4738  int y, cb, cr;
4739 
4740  r = (rgb >> 16) & 0xFF;
4741  g = (rgb >> 8) & 0xFF;
4742  b = (rgb ) & 0xFF;
4743 
4744  y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
4745  cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
4746  cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
4747 
4748  return (y << 16) | (cr << 8) | cb;
4749 }
4750 
4752  AVStream *st)
4753 {
4754  int i, width = 720, height = 480;
4755  int have_palette = 0, have_size = 0;
4756  uint32_t palette[16];
4757  char *cur = st->codec->extradata;
4758 
4759  while (cur && *cur) {
4760  if (strncmp("palette:", cur, 8) == 0) {
4761  int i, count;
4762  count = sscanf(cur + 8,
4763  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4764  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4765  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4766  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4767  &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4768  &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4769  &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4770  &palette[12], &palette[13], &palette[14], &palette[15]);
4771 
4772  for (i = 0; i < count; i++) {
4773  palette[i] = rgb_to_yuv(palette[i]);
4774  }
4775  have_palette = 1;
4776  } else if (!strncmp("size:", cur, 5)) {
4777  sscanf(cur + 5, "%dx%d", &width, &height);
4778  have_size = 1;
4779  }
4780  if (have_palette && have_size)
4781  break;
4782  cur += strcspn(cur, "\n\r");
4783  cur += strspn(cur, "\n\r");
4784  }
4785  if (have_palette) {
4786  track->vos_data = av_malloc(16*4);
4787  if (!track->vos_data)
4788  return AVERROR(ENOMEM);
4789  for (i = 0; i < 16; i++) {
4790  AV_WB32(track->vos_data + i * 4, palette[i]);
4791  }
4792  track->vos_len = 16 * 4;
4793  }
4794  st->codec->width = width;
4795  st->codec->height = track->height = height;
4796 
4797  return 0;
4798 }
4799 
4801 {
4802  AVIOContext *pb = s->pb;
4803  MOVMuxContext *mov = s->priv_data;
4804  AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4805  int i, ret, hint_track = 0, tmcd_track = 0;
4806 
4807  mov->fc = s;
4808 
4809  /* Default mode == MP4 */
4810  mov->mode = MODE_MP4;
4811 
4812  if (s->oformat) {
4813  if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4814  else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4815  else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4816  else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4817  else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4818  else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4819  else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4820  }
4821 
4822  if (s->flags & AVFMT_FLAG_BITEXACT)
4823  mov->exact = 1;
4824 
4825  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4826  mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
4827 
4828  /* Set the FRAGMENT flag if any of the fragmentation methods are
4829  * enabled. */
4830  if (mov->max_fragment_duration || mov->max_fragment_size ||
4831  mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4834  mov->flags |= FF_MOV_FLAG_FRAGMENT;
4835 
4836  /* Set other implicit flags immediately */
4837  if (mov->mode == MODE_ISM)
4840  if (mov->flags & FF_MOV_FLAG_DASH)
4843 
4844  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4845  mov->reserved_moov_size = -1;
4846  }
4847 
4848  if (mov->use_editlist < 0) {
4849  mov->use_editlist = 1;
4850  if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4851  !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4852  // If we can avoid needing an edit list by shifting the
4853  // tracks, prefer that over (trying to) write edit lists
4854  // in fragmented output.
4857  mov->use_editlist = 0;
4858  }
4859  }
4860  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4861  !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
4862  av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
4863 
4866 
4867  /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4868  * is enabled, we don't support non-seekable output at all. */
4869  if (!s->pb->seekable &&
4870  (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4871  av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4872  return AVERROR(EINVAL);
4873  }
4874 
4875  if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4876  if ((ret = mov_write_identification(pb, s)) < 0)
4877  return ret;
4878  }
4879 
4880  mov->nb_streams = s->nb_streams;
4881  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4882  mov->chapter_track = mov->nb_streams++;
4883 
4884  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4885  /* Add hint tracks for each audio and video stream */
4886  hint_track = mov->nb_streams;
4887  for (i = 0; i < s->nb_streams; i++) {
4888  AVStream *st = s->streams[i];
4889  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4891  mov->nb_streams++;
4892  }
4893  }
4894  }
4895 
4896  if (mov->mode == MODE_MOV) {
4897  tmcd_track = mov->nb_streams;
4898 
4899  /* +1 tmcd track for each video stream with a timecode */
4900  for (i = 0; i < s->nb_streams; i++) {
4901  AVStream *st = s->streams[i];
4902  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4903  (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4904  mov->nb_meta_tmcd++;
4905  }
4906 
4907  /* check if there is already a tmcd track to remux */
4908  if (mov->nb_meta_tmcd) {
4909  for (i = 0; i < s->nb_streams; i++) {
4910  AVStream *st = s->streams[i];
4911  if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4912  av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4913  "so timecode metadata are now ignored\n");
4914  mov->nb_meta_tmcd = 0;
4915  }
4916  }
4917  }
4918 
4919  mov->nb_streams += mov->nb_meta_tmcd;
4920  }
4921 
4922  // Reserve an extra stream for chapters for the case where chapters
4923  // are written in the trailer
4924  mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4925  if (!mov->tracks)
4926  return AVERROR(ENOMEM);
4927 
4928  for (i = 0; i < s->nb_streams; i++) {
4929  AVStream *st= s->streams[i];
4930  MOVTrack *track= &mov->tracks[i];
4931  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4932 
4933  track->st = st;
4934  track->enc = st->codec;
4935  track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4936  if (track->language < 0)
4937  track->language = 0;
4938  track->mode = mov->mode;
4939  track->tag = mov_find_codec_tag(s, track);
4940  if (!track->tag) {
4941  av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4942  "codec not currently supported in container\n",
4943  avcodec_get_name(st->codec->codec_id), i);
4944  ret = AVERROR(EINVAL);
4945  goto error;
4946  }
4947  /* If hinting of this track is enabled by a later hint track,
4948  * this is updated. */
4949  track->hint_track = -1;
4950  track->start_dts = AV_NOPTS_VALUE;
4951  track->start_cts = AV_NOPTS_VALUE;
4952  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4953  if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4954  track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4955  track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4956  if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4957  av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4958  ret = AVERROR(EINVAL);
4959  goto error;
4960  }
4961  track->height = track->tag >> 24 == 'n' ? 486 : 576;
4962  }
4963  if (mov->video_track_timescale) {
4964  track->timescale = mov->video_track_timescale;
4965  } else {
4966  track->timescale = st->time_base.den;
4967  while(track->timescale < 10000)
4968  track->timescale *= 2;
4969  }
4970  if (st->codec->width > 65535 || st->codec->height > 65535) {
4971  av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4972  ret = AVERROR(EINVAL);
4973  goto error;
4974  }
4975  if (track->mode == MODE_MOV && track->timescale > 100000)
4977  "WARNING codec timebase is very high. If duration is too long,\n"
4978  "file may not be playable by quicktime. Specify a shorter timebase\n"
4979  "or choose different container.\n");
4980  } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4981  track->timescale = st->codec->sample_rate;
4982  if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4983  av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4984  track->audio_vbr = 1;
4985  }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4987  st->codec->codec_id == AV_CODEC_ID_ILBC){
4988  if (!st->codec->block_align) {
4989  av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4990  ret = AVERROR(EINVAL);
4991  goto error;
4992  }
4993  track->sample_size = st->codec->block_align;
4994  }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4995  track->audio_vbr = 1;
4996  }else{
4997  track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4998  }
4999  if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
5001  track->audio_vbr = 1;
5002  }
5003  if (track->mode != MODE_MOV &&
5004  track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
5005  av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
5006  i, track->enc->sample_rate);
5007  ret = AVERROR(EINVAL);
5008  goto error;
5009  }
5010  } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5011  track->timescale = st->time_base.den;
5012  } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
5013  track->timescale = st->time_base.den;
5014  } else {
5015  track->timescale = MOV_TIMESCALE;
5016  }
5017  if (!track->height)
5018  track->height = st->codec->height;
5019  /* The ism specific timescale isn't mandatory, but is assumed by
5020  * some tools, such as mp4split. */
5021  if (mov->mode == MODE_ISM)
5022  track->timescale = 10000000;
5023 
5024  avpriv_set_pts_info(st, 64, 1, track->timescale);
5025 
5026  /* copy extradata if it exists */
5027  if (st->codec->extradata_size) {
5030  else if (!TAG_IS_AVCI(track->tag) && st->codec->codec_id != AV_CODEC_ID_DNXHD) {
5031  track->vos_len = st->codec->extradata_size;
5032  track->vos_data = av_malloc(track->vos_len);
5033  if (!track->vos_data) {
5034  ret = AVERROR(ENOMEM);
5035  goto error;
5036  }
5037  memcpy(track->vos_data, st->codec->extradata, track->vos_len);
5038  }
5039  }
5040  }
5041 
5042  for (i = 0; i < s->nb_streams; i++) {
5043  int j;
5044  AVStream *st= s->streams[i];
5045  MOVTrack *track= &mov->tracks[i];
5046 
5047  if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5049  continue;
5050 
5051  for (j = 0; j < s->nb_streams; j++) {
5052  AVStream *stj= s->streams[j];
5053  MOVTrack *trackj= &mov->tracks[j];
5054  if (j == i)
5055  continue;
5056 
5057  if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5058  trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
5059  trackj->language != track->language ||
5060  trackj->tag != track->tag
5061  )
5062  continue;
5063  track->multichannel_as_mono++;
5064  }
5065  }
5066 
5067  enable_tracks(s);
5068 
5069 
5070  if (mov->reserved_moov_size){
5071  mov->reserved_moov_pos= avio_tell(pb);
5072  if (mov->reserved_moov_size > 0)
5073  avio_skip(pb, mov->reserved_moov_size);
5074  }
5075 
5076  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5077  /* If no fragmentation options have been set, set a default. */
5078  if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5082  } else {
5083  if (mov->flags & FF_MOV_FLAG_FASTSTART)
5084  mov->reserved_moov_pos = avio_tell(pb);
5085  mov_write_mdat_tag(pb, mov);
5086  }
5087 
5088  if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
5089  mov->time = ff_iso8601_to_unix_time(t->value);
5090  if (mov->time)
5091  mov->time += 0x7C25B080; // 1970 based -> 1904 based
5092 
5093  if (mov->chapter_track)
5094  if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5095  goto error;
5096 
5097  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5098  /* Initialize the hint tracks for each audio and video stream */
5099  for (i = 0; i < s->nb_streams; i++) {
5100  AVStream *st = s->streams[i];
5101  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5103  if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5104  goto error;
5105  hint_track++;
5106  }
5107  }
5108  }
5109 
5110  if (mov->nb_meta_tmcd) {
5111  /* Initialize the tmcd tracks */
5112  for (i = 0; i < s->nb_streams; i++) {
5113  AVStream *st = s->streams[i];
5114  t = global_tcr;
5115 
5116  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5117  if (!t)
5118  t = av_dict_get(st->metadata, "timecode", NULL, 0);
5119  if (!t)
5120  continue;
5121  if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5122  goto error;
5123  tmcd_track++;
5124  }
5125  }
5126  }
5127 
5128  avio_flush(pb);
5129 
5130  if (mov->flags & FF_MOV_FLAG_ISML)
5131  mov_write_isml_manifest(pb, mov);
5132 
5133  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5134  !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5135  if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5136  return ret;
5137  mov->fragments++;
5138  if (mov->flags & FF_MOV_FLAG_FASTSTART)
5139  mov->reserved_moov_pos = avio_tell(pb);
5140  }
5141 
5142  return 0;
5143  error:
5144  mov_free(s);
5145  return ret;
5146 }
5147 
5149 {
5150  int ret;
5151  AVIOContext *moov_buf;
5152  MOVMuxContext *mov = s->priv_data;
5153 
5154  if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5155  return ret;
5156  if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5157  return ret;
5158  return ffio_close_null_buf(moov_buf);
5159 }
5160 
5162 {
5163  int ret;
5164  AVIOContext *buf;
5165  MOVMuxContext *mov = s->priv_data;
5166 
5167  if ((ret = ffio_open_null_buf(&buf)) < 0)
5168  return ret;
5169  mov_write_sidx_tags(buf, mov, -1, 0);
5170  return ffio_close_null_buf(buf);
5171 }
5172 
5173 /*
5174  * This function gets the moov size if moved to the top of the file: the chunk
5175  * offset table can switch between stco (32-bit entries) to co64 (64-bit
5176  * entries) when the moov is moved to the beginning, so the size of the moov
5177  * would change. It also updates the chunk offset tables.
5178  */
5180 {
5181  int i, moov_size, moov_size2;
5182  MOVMuxContext *mov = s->priv_data;
5183 
5184  moov_size = get_moov_size(s);
5185  if (moov_size < 0)
5186  return moov_size;
5187 
5188  for (i = 0; i < mov->nb_streams; i++)
5189  mov->tracks[i].data_offset += moov_size;
5190 
5191  moov_size2 = get_moov_size(s);
5192  if (moov_size2 < 0)
5193  return moov_size2;
5194 
5195  /* if the size changed, we just switched from stco to co64 and need to
5196  * update the offsets */
5197  if (moov_size2 != moov_size)
5198  for (i = 0; i < mov->nb_streams; i++)
5199  mov->tracks[i].data_offset += moov_size2 - moov_size;
5200 
5201  return moov_size2;
5202 }
5203 
5205 {
5206  int i, sidx_size;
5207  MOVMuxContext *mov = s->priv_data;
5208 
5209  sidx_size = get_sidx_size(s);
5210  if (sidx_size < 0)
5211  return sidx_size;
5212 
5213  for (i = 0; i < mov->nb_streams; i++)
5214  mov->tracks[i].data_offset += sidx_size;
5215 
5216  return sidx_size;
5217 }
5218 
5220 {
5221  int ret = 0, moov_size;
5222  MOVMuxContext *mov = s->priv_data;
5223  int64_t pos, pos_end = avio_tell(s->pb);
5224  uint8_t *buf, *read_buf[2];
5225  int read_buf_id = 0;
5226  int read_size[2];
5227  AVIOContext *read_pb;
5228 
5229  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5230  moov_size = compute_sidx_size(s);
5231  else
5232  moov_size = compute_moov_size(s);
5233  if (moov_size < 0)
5234  return moov_size;
5235 
5236  buf = av_malloc(moov_size * 2);
5237  if (!buf)
5238  return AVERROR(ENOMEM);
5239  read_buf[0] = buf;
5240  read_buf[1] = buf + moov_size;
5241 
5242  /* Shift the data: the AVIO context of the output can only be used for
5243  * writing, so we re-open the same output, but for reading. It also avoids
5244  * a read/seek/write/seek back and forth. */
5245  avio_flush(s->pb);
5246  ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5247  if (ret < 0) {
5248  av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5249  "the second pass (faststart)\n", s->filename);
5250  goto end;
5251  }
5252 
5253  /* mark the end of the shift to up to the last data we wrote, and get ready
5254  * for writing */
5255  pos_end = avio_tell(s->pb);
5256  avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
5257 
5258  /* start reading at where the new moov will be placed */
5259  avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
5260  pos = avio_tell(read_pb);
5261 
5262 #define READ_BLOCK do { \
5263  read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5264  read_buf_id ^= 1; \
5265 } while (0)
5266 
5267  /* shift data by chunk of at most moov_size */
5268  READ_BLOCK;
5269  do {
5270  int n;
5271  READ_BLOCK;
5272  n = read_size[read_buf_id];
5273  if (n <= 0)
5274  break;
5275  avio_write(s->pb, read_buf[read_buf_id], n);
5276  pos += n;
5277  } while (pos < pos_end);
5278  avio_close(read_pb);
5279 
5280 end:
5281  av_free(buf);
5282  return ret;
5283 }
5284 
5286 {
5287  MOVMuxContext *mov = s->priv_data;
5288  AVIOContext *pb = s->pb;
5289  int res = 0;
5290  int i;
5291  int64_t moov_pos;
5292 
5293  /*
5294  * Before actually writing the trailer, make sure that there are no
5295  * dangling subtitles, that need a terminating sample.
5296  */
5297  for (i = 0; i < mov->nb_streams; i++) {
5298  MOVTrack *trk = &mov->tracks[i];
5299  if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5302  trk->last_sample_is_subtitle_end = 1;
5303  }
5304  }
5305 
5306  // If there were no chapters when the header was written, but there
5307  // are chapters now, write them in the trailer. This only works
5308  // when we are not doing fragments.
5309  if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5310  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5311  mov->chapter_track = mov->nb_streams++;
5312  if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5313  goto error;
5314  }
5315  }
5316 
5317  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5318  moov_pos = avio_tell(pb);
5319 
5320  /* Write size of mdat tag */
5321  if (mov->mdat_size + 8 <= UINT32_MAX) {
5322  avio_seek(pb, mov->mdat_pos, SEEK_SET);
5323  avio_wb32(pb, mov->mdat_size + 8);
5324  } else {
5325  /* overwrite 'wide' placeholder atom */
5326  avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5327  /* special value: real atom size will be 64 bit value after
5328  * tag field */
5329  avio_wb32(pb, 1);
5330  ffio_wfourcc(pb, "mdat");
5331  avio_wb64(pb, mov->mdat_size + 16);
5332  }
5333  avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
5334 
5335  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5336  av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5337  res = shift_data(s);
5338  if (res == 0) {
5339  avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5340  if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5341  goto error;
5342  }
5343  } else if (mov->reserved_moov_size > 0) {
5344  int64_t size;
5345  if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5346  goto error;
5347  size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
5348  if (size < 8){
5349  av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5350  res = AVERROR(EINVAL);
5351  goto error;
5352  }
5353  avio_wb32(pb, size);
5354  ffio_wfourcc(pb, "free");
5355  ffio_fill(pb, 0, size - 8);
5356  avio_seek(pb, moov_pos, SEEK_SET);
5357  } else {
5358  if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5359  goto error;
5360  }
5361  res = 0;
5362  } else {
5364  for (i = 0; i < mov->nb_streams; i++)
5365  mov->tracks[i].data_offset = 0;
5366  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5367  av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5368  res = shift_data(s);
5369  if (res == 0) {
5370  int64_t end = avio_tell(pb);
5371  avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5372  mov_write_sidx_tags(pb, mov, -1, 0);
5373  avio_seek(pb, end, SEEK_SET);
5374  mov_write_mfra_tag(pb, mov);
5375  }
5376  } else {
5377  mov_write_mfra_tag(pb, mov);
5378  }
5379  }
5380 
5381 error:
5382  mov_free(s);
5383 
5384  return res;
5385 }
5386 
5387 #if CONFIG_MOV_MUXER
5388 MOV_CLASS(mov)
5389 AVOutputFormat ff_mov_muxer = {
5390  .name = "mov",
5391  .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5392  .extensions = "mov",
5393  .priv_data_size = sizeof(MOVMuxContext),
5394  .audio_codec = AV_CODEC_ID_AAC,
5395  .video_codec = CONFIG_LIBX264_ENCODER ?
5401  .codec_tag = (const AVCodecTag* const []){
5403  },
5404  .priv_class = &mov_muxer_class,
5405 };
5406 #endif
5407 #if CONFIG_TGP_MUXER
5408 MOV_CLASS(tgp)
5409 AVOutputFormat ff_tgp_muxer = {
5410  .name = "3gp",
5411  .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5412  .extensions = "3gp",
5413  .priv_data_size = sizeof(MOVMuxContext),
5414  .audio_codec = AV_CODEC_ID_AMR_NB,
5415  .video_codec = AV_CODEC_ID_H263,
5420  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5421  .priv_class = &tgp_muxer_class,
5422 };
5423 #endif
5424 #if CONFIG_MP4_MUXER
5425 MOV_CLASS(mp4)
5426 AVOutputFormat ff_mp4_muxer = {
5427  .name = "mp4",
5428  .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5429  .mime_type = "application/mp4",
5430  .extensions = "mp4",
5431  .priv_data_size = sizeof(MOVMuxContext),
5432  .audio_codec = AV_CODEC_ID_AAC,
5433  .video_codec = CONFIG_LIBX264_ENCODER ?
5434  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5439  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5440  .priv_class = &mp4_muxer_class,
5441 };
5442 #endif
5443 #if CONFIG_PSP_MUXER
5444 MOV_CLASS(psp)
5445 AVOutputFormat ff_psp_muxer = {
5446  .name = "psp",
5447  .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5448  .extensions = "mp4,psp",
5449  .priv_data_size = sizeof(MOVMuxContext),
5450  .audio_codec = AV_CODEC_ID_AAC,
5451  .video_codec = CONFIG_LIBX264_ENCODER ?
5452  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5457  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5458  .priv_class = &psp_muxer_class,
5459 };
5460 #endif
5461 #if CONFIG_TG2_MUXER
5462 MOV_CLASS(tg2)
5463 AVOutputFormat ff_tg2_muxer = {
5464  .name = "3g2",
5465  .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5466  .extensions = "3g2",
5467  .priv_data_size = sizeof(MOVMuxContext),
5468  .audio_codec = AV_CODEC_ID_AMR_NB,
5469  .video_codec = AV_CODEC_ID_H263,
5474  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5475  .priv_class = &tg2_muxer_class,
5476 };
5477 #endif
5478 #if CONFIG_IPOD_MUXER
5479 MOV_CLASS(ipod)
5480 AVOutputFormat ff_ipod_muxer = {
5481  .name = "ipod",
5482  .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5483  .mime_type = "application/mp4",
5484  .extensions = "m4v,m4a",
5485  .priv_data_size = sizeof(MOVMuxContext),
5486  .audio_codec = AV_CODEC_ID_AAC,
5487  .video_codec = AV_CODEC_ID_H264,
5492  .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5493  .priv_class = &ipod_muxer_class,
5494 };
5495 #endif
5496 #if CONFIG_ISMV_MUXER
5497 MOV_CLASS(ismv)
5498 AVOutputFormat ff_ismv_muxer = {
5499  .name = "ismv",
5500  .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5501  .mime_type = "application/mp4",
5502  .extensions = "ismv,isma",
5503  .priv_data_size = sizeof(MOVMuxContext),
5504  .audio_codec = AV_CODEC_ID_AAC,
5505  .video_codec = AV_CODEC_ID_H264,
5510  .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5511  .priv_class = &ismv_muxer_class,
5512 };
5513 #endif
5514 #if CONFIG_F4V_MUXER
5515 MOV_CLASS(f4v)
5516 AVOutputFormat ff_f4v_muxer = {
5517  .name = "f4v",
5518  .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5519  .mime_type = "application/f4v",
5520  .extensions = "f4v",
5521  .priv_data_size = sizeof(MOVMuxContext),
5522  .audio_codec = AV_CODEC_ID_AAC,
5523  .video_codec = AV_CODEC_ID_H264,
5528  .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5529  .priv_class = &f4v_muxer_class,
5530 };
5531 #endif