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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  { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
70  { "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" },
71  { "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" },
72  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
73  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
74  { "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},
75  { "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},
76  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
77  { "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},
78  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
79  { "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},
80  { "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},
81  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
82  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
83  { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
84  { "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},
85  { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
86  { "encryption_scheme", "Configures the encryption scheme, allowed values are none, cenc-aes-ctr", offsetof(MOVMuxContext, encryption_scheme_str), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
87  { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
88  { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
89  { NULL },
90 };
91 
92 #define MOV_CLASS(flavor)\
93 static const AVClass flavor ## _muxer_class = {\
94  .class_name = #flavor " muxer",\
95  .item_name = av_default_item_name,\
96  .option = options,\
97  .version = LIBAVUTIL_VERSION_INT,\
98 };
99 
100 static int get_moov_size(AVFormatContext *s);
101 
102 static int utf8len(const uint8_t *b)
103 {
104  int len = 0;
105  int val;
106  while (*b) {
107  GET_UTF8(val, *b++, return -1;)
108  len++;
109  }
110  return len;
111 }
112 
113 //FIXME support 64 bit variant with wide placeholders
114 static int64_t update_size(AVIOContext *pb, int64_t pos)
115 {
116  int64_t curpos = avio_tell(pb);
117  avio_seek(pb, pos, SEEK_SET);
118  avio_wb32(pb, curpos - pos); /* rewrite size */
119  avio_seek(pb, curpos, SEEK_SET);
120 
121  return curpos - pos;
122 }
123 
124 static int co64_required(const MOVTrack *track)
125 {
126  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
127  return 1;
128  return 0;
129 }
130 
131 /* Chunk offset atom */
132 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
133 {
134  int i;
135  int mode64 = co64_required(track); // use 32 bit size variant if possible
136  int64_t pos = avio_tell(pb);
137  avio_wb32(pb, 0); /* size */
138  if (mode64)
139  ffio_wfourcc(pb, "co64");
140  else
141  ffio_wfourcc(pb, "stco");
142  avio_wb32(pb, 0); /* version & flags */
143  avio_wb32(pb, track->chunkCount); /* entry count */
144  for (i = 0; i < track->entry; i++) {
145  if (!track->cluster[i].chunkNum)
146  continue;
147  if (mode64 == 1)
148  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
149  else
150  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
151  }
152  return update_size(pb, pos);
153 }
154 
155 /* Sample size atom */
156 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
157 {
158  int equalChunks = 1;
159  int i, j, entries = 0, tst = -1, oldtst = -1;
160 
161  int64_t pos = avio_tell(pb);
162  avio_wb32(pb, 0); /* size */
163  ffio_wfourcc(pb, "stsz");
164  avio_wb32(pb, 0); /* version & flags */
165 
166  for (i = 0; i < track->entry; i++) {
167  tst = track->cluster[i].size / track->cluster[i].entries;
168  if (oldtst != -1 && tst != oldtst)
169  equalChunks = 0;
170  oldtst = tst;
171  entries += track->cluster[i].entries;
172  }
173  if (equalChunks && track->entry) {
174  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
175  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
176  avio_wb32(pb, sSize); // sample size
177  avio_wb32(pb, entries); // sample count
178  } else {
179  avio_wb32(pb, 0); // sample size
180  avio_wb32(pb, entries); // sample count
181  for (i = 0; i < track->entry; i++) {
182  for (j = 0; j < track->cluster[i].entries; j++) {
183  avio_wb32(pb, track->cluster[i].size /
184  track->cluster[i].entries);
185  }
186  }
187  }
188  return update_size(pb, pos);
189 }
190 
191 /* Sample to chunk atom */
192 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
193 {
194  int index = 0, oldval = -1, i;
195  int64_t entryPos, curpos;
196 
197  int64_t pos = avio_tell(pb);
198  avio_wb32(pb, 0); /* size */
199  ffio_wfourcc(pb, "stsc");
200  avio_wb32(pb, 0); // version & flags
201  entryPos = avio_tell(pb);
202  avio_wb32(pb, track->chunkCount); // entry count
203  for (i = 0; i < track->entry; i++) {
204  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
205  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
206  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
207  avio_wb32(pb, 0x1); // sample description index
208  oldval = track->cluster[i].samples_in_chunk;
209  index++;
210  }
211  }
212  curpos = avio_tell(pb);
213  avio_seek(pb, entryPos, SEEK_SET);
214  avio_wb32(pb, index); // rewrite size
215  avio_seek(pb, curpos, SEEK_SET);
216 
217  return update_size(pb, pos);
218 }
219 
220 /* Sync sample atom */
221 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
222 {
223  int64_t curpos, entryPos;
224  int i, index = 0;
225  int64_t pos = avio_tell(pb);
226  avio_wb32(pb, 0); // size
227  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
228  avio_wb32(pb, 0); // version & flags
229  entryPos = avio_tell(pb);
230  avio_wb32(pb, track->entry); // entry count
231  for (i = 0; i < track->entry; i++) {
232  if (track->cluster[i].flags & flag) {
233  avio_wb32(pb, i + 1);
234  index++;
235  }
236  }
237  curpos = avio_tell(pb);
238  avio_seek(pb, entryPos, SEEK_SET);
239  avio_wb32(pb, index); // rewrite size
240  avio_seek(pb, curpos, SEEK_SET);
241  return update_size(pb, pos);
242 }
243 
244 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
245 {
246  avio_wb32(pb, 0x11); /* size */
247  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
248  else ffio_wfourcc(pb, "damr");
249  ffio_wfourcc(pb, "FFMP");
250  avio_w8(pb, 0); /* decoder version */
251 
252  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
253  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
254  avio_w8(pb, 0x01); /* Frames per sample */
255  return 0x11;
256 }
257 
258 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
259 {
260  GetBitContext gbc;
261  PutBitContext pbc;
262  uint8_t buf[3];
263  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
264 
265  if (track->vos_len < 7)
266  return -1;
267 
268  avio_wb32(pb, 11);
269  ffio_wfourcc(pb, "dac3");
270 
271  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
272  fscod = get_bits(&gbc, 2);
273  frmsizecod = get_bits(&gbc, 6);
274  bsid = get_bits(&gbc, 5);
275  bsmod = get_bits(&gbc, 3);
276  acmod = get_bits(&gbc, 3);
277  if (acmod == 2) {
278  skip_bits(&gbc, 2); // dsurmod
279  } else {
280  if ((acmod & 1) && acmod != 1)
281  skip_bits(&gbc, 2); // cmixlev
282  if (acmod & 4)
283  skip_bits(&gbc, 2); // surmixlev
284  }
285  lfeon = get_bits1(&gbc);
286 
287  init_put_bits(&pbc, buf, sizeof(buf));
288  put_bits(&pbc, 2, fscod);
289  put_bits(&pbc, 5, bsid);
290  put_bits(&pbc, 3, bsmod);
291  put_bits(&pbc, 3, acmod);
292  put_bits(&pbc, 1, lfeon);
293  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
294  put_bits(&pbc, 5, 0); // reserved
295 
296  flush_put_bits(&pbc);
297  avio_write(pb, buf, sizeof(buf));
298 
299  return 11;
300 }
301 
302 struct eac3_info {
306 
307  /* Layout of the EC3SpecificBox */
308  /* maximum bitrate */
309  uint16_t data_rate;
310  /* number of independent substreams */
312  struct {
313  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
315  /* bit stream identification 5 bits */
317  /* one bit reserved */
318  /* audio service mixing (not supported yet) 1 bit */
319  /* bit stream mode 3 bits */
321  /* audio coding mode 3 bits */
323  /* sub woofer on 1 bit */
325  /* 3 bits reserved */
326  /* number of dependent substreams associated with this substream 4 bits */
328  /* channel locations of the dependent substream(s), if any, 9 bits */
329  uint16_t chan_loc;
330  /* if there is no dependent substream, then one bit reserved instead */
331  } substream[1]; /* TODO: support 8 independent substreams */
332 };
333 
334 #if CONFIG_AC3_PARSER
335 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
336 {
337  GetBitContext gbc;
338  AC3HeaderInfo tmp, *hdr = &tmp;
339  struct eac3_info *info;
340  int num_blocks;
341 
342  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
343  return AVERROR(ENOMEM);
344  info = track->eac3_priv;
345 
346  init_get_bits(&gbc, pkt->data, pkt->size * 8);
347  if (avpriv_ac3_parse_header(&gbc, &hdr) < 0) {
348  /* drop the packets until we see a good one */
349  if (!track->entry) {
350  av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
351  return 0;
352  }
353  return AVERROR_INVALIDDATA;
354  }
355 
356  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
357  num_blocks = hdr->num_blocks;
358 
359  if (!info->ec3_done) {
360  /* AC-3 substream must be the first one */
361  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
362  return AVERROR(EINVAL);
363 
364  /* this should always be the case, given that our AC-3 parser
365  * concatenates dependent frames to their independent parent */
367  /* substream ids must be incremental */
368  if (hdr->substreamid > info->num_ind_sub + 1)
369  return AVERROR(EINVAL);
370 
371  if (hdr->substreamid == info->num_ind_sub + 1) {
372  //info->num_ind_sub++;
373  avpriv_request_sample(track->enc, "Multiple independent substreams");
374  return AVERROR_PATCHWELCOME;
375  } else if (hdr->substreamid < info->num_ind_sub ||
376  hdr->substreamid == 0 && info->substream[0].bsid) {
377  info->ec3_done = 1;
378  goto concatenate;
379  }
380  }
381 
382  /* fill the info needed for the "dec3" atom */
383  info->substream[hdr->substreamid].fscod = hdr->sr_code;
384  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
385  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
386  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
387  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
388 
389  /* Parse dependent substream(s), if any */
390  if (pkt->size != hdr->frame_size) {
391  int cumul_size = hdr->frame_size;
392  int parent = hdr->substreamid;
393 
394  while (cumul_size != pkt->size) {
395  int i;
396  init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
397  if (avpriv_ac3_parse_header(&gbc, &hdr) < 0)
398  return AVERROR_INVALIDDATA;
400  return AVERROR(EINVAL);
401  cumul_size += hdr->frame_size;
402  info->substream[parent].num_dep_sub++;
403 
404  /* header is parsed up to lfeon, but custom channel map may be needed */
405  /* skip bsid */
406  skip_bits(&gbc, 5);
407  /* skip volume control params */
408  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
409  skip_bits(&gbc, 5); // skip dialog normalization
410  if (get_bits1(&gbc)) {
411  skip_bits(&gbc, 8); // skip compression gain word
412  }
413  }
414  /* get the dependent stream channel map, if exists */
415  if (get_bits1(&gbc))
416  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
417  else
418  info->substream[parent].chan_loc |= hdr->channel_mode;
419  }
420  }
421  }
422 
423 concatenate:
424  if (!info->num_blocks && num_blocks == 6)
425  return pkt->size;
426  else if (info->num_blocks + num_blocks > 6)
427  return AVERROR_INVALIDDATA;
428 
429  if (!info->num_blocks) {
430  int ret;
431  if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
432  return ret;
433  info->num_blocks = num_blocks;
434  return 0;
435  } else {
436  int ret;
437  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
438  return ret;
439  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
440  info->num_blocks += num_blocks;
441  info->pkt.duration += pkt->duration;
442  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
443  return ret;
444  if (info->num_blocks != 6)
445  return 0;
446  av_packet_unref(pkt);
447  if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
448  return ret;
449  av_packet_unref(&info->pkt);
450  info->num_blocks = 0;
451  }
452 
453  return pkt->size;
454 }
455 #endif
456 
457 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
458 {
459  PutBitContext pbc;
460  uint8_t *buf;
461  struct eac3_info *info;
462  int size, i;
463 
464  if (!track->eac3_priv)
465  return AVERROR(EINVAL);
466 
467  info = track->eac3_priv;
468  size = 2 + 4 * (info->num_ind_sub + 1);
469  buf = av_malloc(size);
470  if (!buf) {
471  size = AVERROR(ENOMEM);
472  goto end;
473  }
474 
475  init_put_bits(&pbc, buf, size);
476  put_bits(&pbc, 13, info->data_rate);
477  put_bits(&pbc, 3, info->num_ind_sub);
478  for (i = 0; i <= info->num_ind_sub; i++) {
479  put_bits(&pbc, 2, info->substream[i].fscod);
480  put_bits(&pbc, 5, info->substream[i].bsid);
481  put_bits(&pbc, 1, 0); /* reserved */
482  put_bits(&pbc, 1, 0); /* asvc */
483  put_bits(&pbc, 3, info->substream[i].bsmod);
484  put_bits(&pbc, 3, info->substream[i].acmod);
485  put_bits(&pbc, 1, info->substream[i].lfeon);
486  put_bits(&pbc, 5, 0); /* reserved */
487  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
488  if (!info->substream[i].num_dep_sub) {
489  put_bits(&pbc, 1, 0); /* reserved */
490  size--;
491  } else {
492  put_bits(&pbc, 9, info->substream[i].chan_loc);
493  }
494  }
495  flush_put_bits(&pbc);
496 
497  avio_wb32(pb, size + 8);
498  ffio_wfourcc(pb, "dec3");
499  avio_write(pb, buf, size);
500 
501  av_free(buf);
502 
503 end:
504  av_packet_unref(&info->pkt);
505  av_freep(&track->eac3_priv);
506 
507  return size;
508 }
509 
510 /**
511  * This function writes extradata "as is".
512  * Extradata must be formatted like a valid atom (with size and tag).
513  */
515 {
516  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
517  return track->enc->extradata_size;
518 }
519 
521 {
522  avio_wb32(pb, 10);
523  ffio_wfourcc(pb, "enda");
524  avio_wb16(pb, 1); /* little endian */
525  return 10;
526 }
527 
529 {
530  avio_wb32(pb, 10);
531  ffio_wfourcc(pb, "enda");
532  avio_wb16(pb, 0); /* big endian */
533  return 10;
534 }
535 
536 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
537 {
538  int i = 3;
539  avio_w8(pb, tag);
540  for (; i > 0; i--)
541  avio_w8(pb, (size >> (7 * i)) | 0x80);
542  avio_w8(pb, size & 0x7F);
543 }
544 
545 static unsigned compute_avg_bitrate(MOVTrack *track)
546 {
547  uint64_t size = 0;
548  int i;
549  if (!track->track_duration)
550  return 0;
551  for (i = 0; i < track->entry; i++)
552  size += track->cluster[i].size;
553  return size * 8 * track->timescale / track->track_duration;
554 }
555 
556 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
557 {
558  AVCPBProperties *props;
559  int64_t pos = avio_tell(pb);
560  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
561  unsigned avg_bitrate;
562 
563  avio_wb32(pb, 0); // size
564  ffio_wfourcc(pb, "esds");
565  avio_wb32(pb, 0); // Version
566 
567  // ES descriptor
568  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
569  avio_wb16(pb, track->track_id);
570  avio_w8(pb, 0x00); // flags (= no flags)
571 
572  // DecoderConfig descriptor
573  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
574 
575  // Object type indication
576  if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
577  track->enc->codec_id == AV_CODEC_ID_MP3) &&
578  track->enc->sample_rate > 24000)
579  avio_w8(pb, 0x6B); // 11172-3
580  else
582 
583  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
584  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
585  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
586  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
587  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
588  avio_w8(pb, 0x15); // flags (= Audiostream)
589  else
590  avio_w8(pb, 0x11); // flags (= Visualstream)
591 
593  NULL);
594 
595  avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
596 
597  avg_bitrate = compute_avg_bitrate(track);
598  avio_wb32(pb, props ? FFMAX3(props->max_bitrate, props->avg_bitrate, avg_bitrate) : FFMAX(track->enc->bit_rate, avg_bitrate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
599  avio_wb32(pb, avg_bitrate);
600 
601  if (track->vos_len) {
602  // DecoderSpecific info descriptor
603  put_descr(pb, 0x05, track->vos_len);
604  avio_write(pb, track->vos_data, track->vos_len);
605  }
606 
607  // SL descriptor
608  put_descr(pb, 0x06, 1);
609  avio_w8(pb, 0x02);
610  return update_size(pb, pos);
611 }
612 
614 {
615  return codec_id == AV_CODEC_ID_PCM_S24LE ||
616  codec_id == AV_CODEC_ID_PCM_S32LE ||
617  codec_id == AV_CODEC_ID_PCM_F32LE ||
618  codec_id == AV_CODEC_ID_PCM_F64LE;
619 }
620 
622 {
623  return codec_id == AV_CODEC_ID_PCM_S24BE ||
624  codec_id == AV_CODEC_ID_PCM_S32BE ||
625  codec_id == AV_CODEC_ID_PCM_F32BE ||
626  codec_id == AV_CODEC_ID_PCM_F64BE;
627 }
628 
629 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
630 {
631  int ret;
632  int64_t pos = avio_tell(pb);
633  avio_wb32(pb, 0);
634  avio_wl32(pb, track->tag); // store it byteswapped
635  track->enc->codec_tag = av_bswap16(track->tag >> 16);
636  if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
637  return ret;
638  return update_size(pb, pos);
639 }
640 
641 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
642 {
643  int ret;
644  int64_t pos = avio_tell(pb);
645  avio_wb32(pb, 0);
646  ffio_wfourcc(pb, "wfex");
647  if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
648  return ret;
649  return update_size(pb, pos);
650 }
651 
652 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
653 {
654  uint32_t layout_tag, bitmap;
655  int64_t pos = avio_tell(pb);
656 
657  layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
658  track->enc->channel_layout,
659  &bitmap);
660  if (!layout_tag) {
661  av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
662  "lack of channel information\n");
663  return 0;
664  }
665 
666  if (track->multichannel_as_mono)
667  return 0;
668 
669  avio_wb32(pb, 0); // Size
670  ffio_wfourcc(pb, "chan"); // Type
671  avio_w8(pb, 0); // Version
672  avio_wb24(pb, 0); // Flags
673  avio_wb32(pb, layout_tag); // mChannelLayoutTag
674  avio_wb32(pb, bitmap); // mChannelBitmap
675  avio_wb32(pb, 0); // mNumberChannelDescriptions
676 
677  return update_size(pb, pos);
678 }
679 
680 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
681 {
682  int64_t pos = avio_tell(pb);
683 
684  avio_wb32(pb, 0); /* size */
685  ffio_wfourcc(pb, "wave");
686 
687  if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
688  avio_wb32(pb, 12); /* size */
689  ffio_wfourcc(pb, "frma");
690  avio_wl32(pb, track->tag);
691  }
692 
693  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
694  /* useless atom needed by mplayer, ipod, not needed by quicktime */
695  avio_wb32(pb, 12); /* size */
696  ffio_wfourcc(pb, "mp4a");
697  avio_wb32(pb, 0);
698  mov_write_esds_tag(pb, track);
699  } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
700  mov_write_enda_tag(pb);
701  } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
703  } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
704  mov_write_amr_tag(pb, track);
705  } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
706  mov_write_ac3_tag(pb, track);
707  } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
708  mov_write_eac3_tag(pb, track);
709  } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
710  track->enc->codec_id == AV_CODEC_ID_QDM2) {
711  mov_write_extradata_tag(pb, track);
712  } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
714  mov_write_ms_tag(pb, track);
715  }
716 
717  avio_wb32(pb, 8); /* size */
718  avio_wb32(pb, 0); /* null tag */
719 
720  return update_size(pb, pos);
721 }
722 
724 {
725  uint8_t *unescaped;
726  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
727  int unescaped_size, seq_found = 0;
728  int level = 0, interlace = 0;
729  int packet_seq = track->vc1_info.packet_seq;
730  int packet_entry = track->vc1_info.packet_entry;
731  int slices = track->vc1_info.slices;
732  PutBitContext pbc;
733 
734  if (track->start_dts == AV_NOPTS_VALUE) {
735  /* No packets written yet, vc1_info isn't authoritative yet. */
736  /* Assume inline sequence and entry headers. */
737  packet_seq = packet_entry = 1;
739  "moov atom written before any packets, unable to write correct "
740  "dvc1 atom. Set the delay_moov flag to fix this.\n");
741  }
742 
743  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
744  if (!unescaped)
745  return AVERROR(ENOMEM);
746  start = find_next_marker(track->vos_data, end);
747  for (next = start; next < end; start = next) {
748  GetBitContext gb;
749  int size;
750  next = find_next_marker(start + 4, end);
751  size = next - start - 4;
752  if (size <= 0)
753  continue;
754  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
755  init_get_bits(&gb, unescaped, 8 * unescaped_size);
756  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
757  int profile = get_bits(&gb, 2);
758  if (profile != PROFILE_ADVANCED) {
759  av_free(unescaped);
760  return AVERROR(ENOSYS);
761  }
762  seq_found = 1;
763  level = get_bits(&gb, 3);
764  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
765  * width, height */
766  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
767  skip_bits(&gb, 1); /* broadcast */
768  interlace = get_bits1(&gb);
769  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
770  }
771  }
772  if (!seq_found) {
773  av_free(unescaped);
774  return AVERROR(ENOSYS);
775  }
776 
777  init_put_bits(&pbc, buf, 7);
778  /* VC1DecSpecStruc */
779  put_bits(&pbc, 4, 12); /* profile - advanced */
780  put_bits(&pbc, 3, level);
781  put_bits(&pbc, 1, 0); /* reserved */
782  /* VC1AdvDecSpecStruc */
783  put_bits(&pbc, 3, level);
784  put_bits(&pbc, 1, 0); /* cbr */
785  put_bits(&pbc, 6, 0); /* reserved */
786  put_bits(&pbc, 1, !interlace); /* no interlace */
787  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
788  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
789  put_bits(&pbc, 1, !slices); /* no slice code */
790  put_bits(&pbc, 1, 0); /* no bframe */
791  put_bits(&pbc, 1, 0); /* reserved */
792 
793  /* framerate */
794  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
795  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
796  else
797  put_bits32(&pbc, 0xffffffff);
798 
799  flush_put_bits(&pbc);
800 
801  av_free(unescaped);
802 
803  return 0;
804 }
805 
806 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
807 {
808  uint8_t buf[7] = { 0 };
809  int ret;
810 
811  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
812  return ret;
813 
814  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
815  ffio_wfourcc(pb, "dvc1");
816  avio_write(pb, buf, sizeof(buf));
817  avio_write(pb, track->vos_data, track->vos_len);
818 
819  return 0;
820 }
821 
822 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
823 {
824  avio_wb32(pb, track->vos_len + 8);
825  ffio_wfourcc(pb, "glbl");
826  avio_write(pb, track->vos_data, track->vos_len);
827  return 8 + track->vos_len;
828 }
829 
830 /**
831  * Compute flags for 'lpcm' tag.
832  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
833  */
835 {
836  switch (codec_id) {
839  return 11;
842  return 9;
843  case AV_CODEC_ID_PCM_U8:
844  return 10;
848  return 14;
849  case AV_CODEC_ID_PCM_S8:
853  return 12;
854  default:
855  return 0;
856  }
857 }
858 
859 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
860 {
861  int64_t next_dts;
862 
863  if (cluster_idx >= track->entry)
864  return 0;
865 
866  if (cluster_idx + 1 == track->entry)
867  next_dts = track->track_duration + track->start_dts;
868  else
869  next_dts = track->cluster[cluster_idx + 1].dts;
870 
871  next_dts -= track->cluster[cluster_idx].dts;
872 
873  av_assert0(next_dts >= 0);
874  av_assert0(next_dts <= INT_MAX);
875 
876  return next_dts;
877 }
878 
880 {
881  int i, first_duration;
882 
883 // return track->enc->frame_size;
884 
885  /* use 1 for raw PCM */
886  if (!track->audio_vbr)
887  return 1;
888 
889  /* check to see if duration is constant for all clusters */
890  if (!track->entry)
891  return 0;
892  first_duration = get_cluster_duration(track, 0);
893  for (i = 1; i < track->entry; i++) {
894  if (get_cluster_duration(track, i) != first_duration)
895  return 0;
896  }
897  return first_duration;
898 }
899 
901 {
902  int64_t pos = avio_tell(pb);
903  int version = 0;
904  uint32_t tag = track->tag;
905 
906  if (track->mode == MODE_MOV) {
907  if (track->timescale > UINT16_MAX) {
908  if (mov_get_lpcm_flags(track->enc->codec_id))
909  tag = AV_RL32("lpcm");
910  version = 2;
911  } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
912  mov_pcm_be_gt16(track->enc->codec_id) ||
913  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
915  track->enc->codec_id == AV_CODEC_ID_QDM2) {
916  version = 1;
917  }
918  }
919 
920  avio_wb32(pb, 0); /* size */
921  if (mov->encryption_scheme != MOV_ENC_NONE) {
922  ffio_wfourcc(pb, "enca");
923  } else {
924  avio_wl32(pb, tag); // store it byteswapped
925  }
926  avio_wb32(pb, 0); /* Reserved */
927  avio_wb16(pb, 0); /* Reserved */
928  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
929 
930  /* SoundDescription */
931  avio_wb16(pb, version); /* Version */
932  avio_wb16(pb, 0); /* Revision level */
933  avio_wb32(pb, 0); /* Reserved */
934 
935  if (version == 2) {
936  avio_wb16(pb, 3);
937  avio_wb16(pb, 16);
938  avio_wb16(pb, 0xfffe);
939  avio_wb16(pb, 0);
940  avio_wb32(pb, 0x00010000);
941  avio_wb32(pb, 72);
942  avio_wb64(pb, av_double2int(track->enc->sample_rate));
943  avio_wb32(pb, track->enc->channels);
944  avio_wb32(pb, 0x7F000000);
947  avio_wb32(pb, track->sample_size);
948  avio_wb32(pb, get_samples_per_packet(track));
949  } else {
950  if (track->mode == MODE_MOV) {
951  avio_wb16(pb, track->enc->channels);
952  if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
953  track->enc->codec_id == AV_CODEC_ID_PCM_S8)
954  avio_wb16(pb, 8); /* bits per sample */
955  else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
956  avio_wb16(pb, track->enc->bits_per_coded_sample);
957  else
958  avio_wb16(pb, 16);
959  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
960  } else { /* reserved for mp4/3gp */
961  avio_wb16(pb, 2);
962  avio_wb16(pb, 16);
963  avio_wb16(pb, 0);
964  }
965 
966  avio_wb16(pb, 0); /* packet size (= 0) */
967  avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
968  track->enc->sample_rate : 0);
969  avio_wb16(pb, 0); /* Reserved */
970  }
971 
972  if (version == 1) { /* SoundDescription V1 extended info */
973  if (mov_pcm_le_gt16(track->enc->codec_id) ||
974  mov_pcm_be_gt16(track->enc->codec_id))
975  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
976  else
977  avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
978  avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
979  avio_wb32(pb, track->sample_size); /* Bytes per frame */
980  avio_wb32(pb, 2); /* Bytes per sample */
981  }
982 
983  if (track->mode == MODE_MOV &&
984  (track->enc->codec_id == AV_CODEC_ID_AAC ||
985  track->enc->codec_id == AV_CODEC_ID_AC3 ||
986  track->enc->codec_id == AV_CODEC_ID_EAC3 ||
987  track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
988  track->enc->codec_id == AV_CODEC_ID_ALAC ||
989  track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
991  track->enc->codec_id == AV_CODEC_ID_QDM2 ||
992  (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
993  (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
994  mov_write_wave_tag(pb, track);
995  else if (track->tag == MKTAG('m','p','4','a'))
996  mov_write_esds_tag(pb, track);
997  else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
998  mov_write_amr_tag(pb, track);
999  else if (track->enc->codec_id == AV_CODEC_ID_AC3)
1000  mov_write_ac3_tag(pb, track);
1001  else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
1002  mov_write_eac3_tag(pb, track);
1003  else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
1004  mov_write_extradata_tag(pb, track);
1005  else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1006  mov_write_wfex_tag(pb, track);
1007  else if (track->vos_len > 0)
1008  mov_write_glbl_tag(pb, track);
1009 
1010  if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1011  mov_write_chan_tag(pb, track);
1012 
1013  if (mov->encryption_scheme != MOV_ENC_NONE) {
1014  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1015  }
1016 
1017  return update_size(pb, pos);
1018 }
1019 
1021 {
1022  avio_wb32(pb, 0xf); /* size */
1023  ffio_wfourcc(pb, "d263");
1024  ffio_wfourcc(pb, "FFMP");
1025  avio_w8(pb, 0); /* decoder version */
1026  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1027  avio_w8(pb, 0xa); /* level */
1028  avio_w8(pb, 0); /* profile */
1029  return 0xf;
1030 }
1031 
1032 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1033 {
1034  int64_t pos = avio_tell(pb);
1035 
1036  avio_wb32(pb, 0);
1037  ffio_wfourcc(pb, "avcC");
1038  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1039  return update_size(pb, pos);
1040 }
1041 
1042 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1043 {
1044  int64_t pos = avio_tell(pb);
1045 
1046  avio_wb32(pb, 0);
1047  ffio_wfourcc(pb, "hvcC");
1048  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1049  return update_size(pb, pos);
1050 }
1051 
1052 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1053 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1054 {
1055  int i;
1056  int interlaced;
1057  int cid;
1058 
1059  if (track->vos_data && track->vos_len > 0x29) {
1060  if (track->vos_data[0] == 0x00 &&
1061  track->vos_data[1] == 0x00 &&
1062  track->vos_data[2] == 0x02 &&
1063  track->vos_data[3] == 0x80 &&
1064  (track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
1065  /* looks like a DNxHD bit stream */
1066  interlaced = (track->vos_data[5] & 2);
1067  cid = AV_RB32(track->vos_data + 0x28);
1068  } else {
1069  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1070  return 0;
1071  }
1072  } else {
1073  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1074  return 0;
1075  }
1076 
1077  avio_wb32(pb, 24); /* size */
1078  ffio_wfourcc(pb, "ACLR");
1079  ffio_wfourcc(pb, "ACLR");
1080  ffio_wfourcc(pb, "0001");
1081  if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1083  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1084  } else { /* Full range (0-255) */
1085  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1086  }
1087  avio_wb32(pb, 0); /* unknown */
1088 
1089  avio_wb32(pb, 24); /* size */
1090  ffio_wfourcc(pb, "APRG");
1091  ffio_wfourcc(pb, "APRG");
1092  ffio_wfourcc(pb, "0001");
1093  avio_wb32(pb, 1); /* unknown */
1094  avio_wb32(pb, 0); /* unknown */
1095 
1096  avio_wb32(pb, 120); /* size */
1097  ffio_wfourcc(pb, "ARES");
1098  ffio_wfourcc(pb, "ARES");
1099  ffio_wfourcc(pb, "0001");
1100  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1101  avio_wb32(pb, track->enc->width);
1102  /* values below are based on samples created with quicktime and avid codecs */
1103  if (interlaced) {
1104  avio_wb32(pb, track->enc->height / 2);
1105  avio_wb32(pb, 2); /* unknown */
1106  avio_wb32(pb, 0); /* unknown */
1107  avio_wb32(pb, 4); /* unknown */
1108  } else {
1109  avio_wb32(pb, track->enc->height);
1110  avio_wb32(pb, 1); /* unknown */
1111  avio_wb32(pb, 0); /* unknown */
1112  if (track->enc->height == 1080)
1113  avio_wb32(pb, 5); /* unknown */
1114  else
1115  avio_wb32(pb, 6); /* unknown */
1116  }
1117  /* padding */
1118  for (i = 0; i < 10; i++)
1119  avio_wb64(pb, 0);
1120 
1121  return 0;
1122 }
1123 
1124 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1125 {
1126  avio_wb32(pb, 12);
1127  ffio_wfourcc(pb, "DpxE");
1128  if (track->enc->extradata_size >= 12 &&
1129  !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1130  avio_wb32(pb, track->enc->extradata[11]);
1131  } else {
1132  avio_wb32(pb, 1);
1133  }
1134  return 0;
1135 }
1136 
1138 {
1139  int tag = track->enc->codec_tag;
1140 
1142  return 0;
1143 
1144  if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1145  else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1146  else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1147  else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1148  else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1149  else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1150  else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1151  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1152  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1153  else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1154 
1155  return tag;
1156 }
1157 
1158 static const AVCodecTag codec_ipod_tags[] = {
1159  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1160  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1161  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1162  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1163  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1164  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1165  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1166  { AV_CODEC_ID_NONE, 0 },
1167 };
1168 
1170 {
1171  int tag = track->enc->codec_tag;
1172 
1173  // keep original tag for subs, ipod supports both formats
1174  if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1175  (tag == MKTAG('t', 'x', '3', 'g') ||
1176  tag == MKTAG('t', 'e', 'x', 't'))))
1177  tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1178 
1179  if (!av_match_ext(s->filename, "m4a") &&
1180  !av_match_ext(s->filename, "m4b") &&
1181  !av_match_ext(s->filename, "m4v"))
1182  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1183  "Quicktime/Ipod might not play the file\n");
1184 
1185  return tag;
1186 }
1187 
1189 {
1190  int tag;
1191 
1192  if (track->enc->width == 720) { /* SD */
1193  if (track->enc->height == 480) { /* NTSC */
1194  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1195  else tag = MKTAG('d','v','c',' ');
1196  }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1197  else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1198  else tag = MKTAG('d','v','p','p');
1199  } else if (track->enc->height == 720) { /* HD 720 line */
1200  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1201  else tag = MKTAG('d','v','h','p');
1202  } else if (track->enc->height == 1080) { /* HD 1080 line */
1203  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1204  else tag = MKTAG('d','v','h','6');
1205  } else {
1206  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1207  return 0;
1208  }
1209 
1210  return tag;
1211 }
1212 
1214 {
1215  AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1216  /* if the codec time base makes no sense, try to fallback on stream frame rate */
1217  if (av_timecode_check_frame_rate(rate) < 0) {
1218  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1219  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1220  rate = st->avg_frame_rate;
1221  }
1222 
1223  return rate;
1224 }
1225 
1227 {
1228  int tag = track->enc->codec_tag;
1230  AVStream *st = track->st;
1231  int rate = av_q2d(find_fps(s, st));
1232 
1233  if (!tag)
1234  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1235 
1236  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1237  if (track->enc->width == 1280 && track->enc->height == 720) {
1238  if (!interlaced) {
1239  if (rate == 24) tag = MKTAG('x','d','v','4');
1240  else if (rate == 25) tag = MKTAG('x','d','v','5');
1241  else if (rate == 30) tag = MKTAG('x','d','v','1');
1242  else if (rate == 50) tag = MKTAG('x','d','v','a');
1243  else if (rate == 60) tag = MKTAG('x','d','v','9');
1244  }
1245  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1246  if (!interlaced) {
1247  if (rate == 24) tag = MKTAG('x','d','v','6');
1248  else if (rate == 25) tag = MKTAG('x','d','v','7');
1249  else if (rate == 30) tag = MKTAG('x','d','v','8');
1250  } else {
1251  if (rate == 25) tag = MKTAG('x','d','v','3');
1252  else if (rate == 30) tag = MKTAG('x','d','v','2');
1253  }
1254  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1255  if (!interlaced) {
1256  if (rate == 24) tag = MKTAG('x','d','v','d');
1257  else if (rate == 25) tag = MKTAG('x','d','v','e');
1258  else if (rate == 30) tag = MKTAG('x','d','v','f');
1259  } else {
1260  if (rate == 25) tag = MKTAG('x','d','v','c');
1261  else if (rate == 30) tag = MKTAG('x','d','v','b');
1262  }
1263  }
1264  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1265  if (track->enc->width == 1280 && track->enc->height == 720) {
1266  if (!interlaced) {
1267  if (rate == 24) tag = MKTAG('x','d','5','4');
1268  else if (rate == 25) tag = MKTAG('x','d','5','5');
1269  else if (rate == 30) tag = MKTAG('x','d','5','1');
1270  else if (rate == 50) tag = MKTAG('x','d','5','a');
1271  else if (rate == 60) tag = MKTAG('x','d','5','9');
1272  }
1273  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1274  if (!interlaced) {
1275  if (rate == 24) tag = MKTAG('x','d','5','d');
1276  else if (rate == 25) tag = MKTAG('x','d','5','e');
1277  else if (rate == 30) tag = MKTAG('x','d','5','f');
1278  } else {
1279  if (rate == 25) tag = MKTAG('x','d','5','c');
1280  else if (rate == 30) tag = MKTAG('x','d','5','b');
1281  }
1282  }
1283  }
1284 
1285  return tag;
1286 }
1287 
1289 {
1290  int tag = track->enc->codec_tag;
1292  AVStream *st = track->st;
1293  int rate = av_q2d(find_fps(s, st));
1294 
1295  if (!tag)
1296  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1297 
1298  if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1299  if (track->enc->width == 960 && track->enc->height == 720) {
1300  if (!interlaced) {
1301  if (rate == 24) tag = MKTAG('a','i','5','p');
1302  else if (rate == 25) tag = MKTAG('a','i','5','q');
1303  else if (rate == 30) tag = MKTAG('a','i','5','p');
1304  else if (rate == 50) tag = MKTAG('a','i','5','q');
1305  else if (rate == 60) tag = MKTAG('a','i','5','p');
1306  }
1307  } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1308  if (!interlaced) {
1309  if (rate == 24) tag = MKTAG('a','i','5','3');
1310  else if (rate == 25) tag = MKTAG('a','i','5','2');
1311  else if (rate == 30) tag = MKTAG('a','i','5','3');
1312  } else {
1313  if (rate == 50) tag = MKTAG('a','i','5','5');
1314  else if (rate == 60) tag = MKTAG('a','i','5','6');
1315  }
1316  }
1317  } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1318  if (track->enc->width == 1280 && track->enc->height == 720) {
1319  if (!interlaced) {
1320  if (rate == 24) tag = MKTAG('a','i','1','p');
1321  else if (rate == 25) tag = MKTAG('a','i','1','q');
1322  else if (rate == 30) tag = MKTAG('a','i','1','p');
1323  else if (rate == 50) tag = MKTAG('a','i','1','q');
1324  else if (rate == 60) tag = MKTAG('a','i','1','p');
1325  }
1326  } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1327  if (!interlaced) {
1328  if (rate == 24) tag = MKTAG('a','i','1','3');
1329  else if (rate == 25) tag = MKTAG('a','i','1','2');
1330  else if (rate == 30) tag = MKTAG('a','i','1','3');
1331  } else {
1332  if (rate == 25) tag = MKTAG('a','i','1','5');
1333  else if (rate == 50) tag = MKTAG('a','i','1','5');
1334  else if (rate == 60) tag = MKTAG('a','i','1','6');
1335  }
1336  } else if ( track->enc->width == 4096 && track->enc->height == 2160
1337  || track->enc->width == 3840 && track->enc->height == 2160
1338  || track->enc->width == 2048 && track->enc->height == 1080) {
1339  tag = MKTAG('a','i','v','x');
1340  }
1341  }
1342 
1343  return tag;
1344 }
1345 
1346 static const struct {
1348  uint32_t tag;
1349  unsigned bps;
1350 } mov_pix_fmt_tags[] = {
1351  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1352  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1353  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1354  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1355  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1356  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1357  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1358  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1359  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1360  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1361  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1362  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1363  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1364  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1365  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1366 };
1367 
1369 {
1370  int tag = track->enc->codec_tag;
1371  int i;
1372  enum AVPixelFormat pix_fmt;
1373 
1374  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1375  if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1376  tag = mov_pix_fmt_tags[i].tag;
1377  track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1378  if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1379  break;
1380  }
1381  }
1382 
1384  track->enc->bits_per_coded_sample);
1385  if (tag == MKTAG('r','a','w',' ') &&
1386  track->enc->pix_fmt != pix_fmt &&
1387  track->enc->pix_fmt != AV_PIX_FMT_NONE)
1388  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1389  av_get_pix_fmt_name(track->enc->pix_fmt));
1390  return tag;
1391 }
1392 
1394 {
1395  int tag = track->enc->codec_tag;
1396 
1397  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1398  (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1399  track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1400  track->enc->codec_id == AV_CODEC_ID_H263 ||
1401  track->enc->codec_id == AV_CODEC_ID_H264 ||
1402  track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1403  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1404  if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1405  tag = mov_get_dv_codec_tag(s, track);
1406  else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1407  tag = mov_get_rawvideo_codec_tag(s, track);
1408  else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1409  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1410  else if (track->enc->codec_id == AV_CODEC_ID_H264)
1411  tag = mov_get_h264_codec_tag(s, track);
1412  else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1414  if (!tag) { // if no mac fcc found, try with Microsoft tags
1416  if (tag)
1417  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1418  "the file may be unplayable!\n");
1419  }
1420  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1422  if (!tag) { // if no mac fcc found, try with Microsoft tags
1423  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1424  if (ms_tag) {
1425  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1426  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1427  "the file may be unplayable!\n");
1428  }
1429  }
1430  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1432  }
1433 
1434  return tag;
1435 }
1436 
1437 static const AVCodecTag codec_3gp_tags[] = {
1438  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1439  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1440  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1441  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1442  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1443  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1444  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1445  { AV_CODEC_ID_NONE, 0 },
1446 };
1447 
1448 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1449  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1450  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1451  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1452  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1453  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1454  { AV_CODEC_ID_NONE, 0 },
1455 };
1456 
1458 {
1459  int tag;
1460 
1461  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1462  tag = mp4_get_codec_tag(s, track);
1463  else if (track->mode == MODE_ISM) {
1464  tag = mp4_get_codec_tag(s, track);
1465  if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1466  tag = MKTAG('w', 'm', 'a', ' ');
1467  } else if (track->mode == MODE_IPOD)
1468  tag = ipod_get_codec_tag(s, track);
1469  else if (track->mode & MODE_3GP)
1470  tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1471  else if (track->mode == MODE_F4V)
1472  tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1473  else
1474  tag = mov_get_codec_tag(s, track);
1475 
1476  return tag;
1477 }
1478 
1479 /** Write uuid atom.
1480  * Needed to make file play in iPods running newest firmware
1481  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1482  */
1484 {
1485  avio_wb32(pb, 28);
1486  ffio_wfourcc(pb, "uuid");
1487  avio_wb32(pb, 0x6b6840f2);
1488  avio_wb32(pb, 0x5f244fc5);
1489  avio_wb32(pb, 0xba39a51b);
1490  avio_wb32(pb, 0xcf0323f3);
1491  avio_wb32(pb, 0x0);
1492  return 28;
1493 }
1494 
1495 static const uint16_t fiel_data[] = {
1496  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1497 };
1498 
1499 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1500 {
1501  unsigned mov_field_order = 0;
1502  if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1503  mov_field_order = fiel_data[track->enc->field_order];
1504  else
1505  return 0;
1506  avio_wb32(pb, 10);
1507  ffio_wfourcc(pb, "fiel");
1508  avio_wb16(pb, mov_field_order);
1509  return 10;
1510 }
1511 
1513 {
1514  int64_t pos = avio_tell(pb);
1515  avio_wb32(pb, 0); /* size */
1516  avio_wl32(pb, track->tag); // store it byteswapped
1517  avio_wb32(pb, 0); /* Reserved */
1518  avio_wb16(pb, 0); /* Reserved */
1519  avio_wb16(pb, 1); /* Data-reference index */
1520 
1521  if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1522  mov_write_esds_tag(pb, track);
1523  else if (track->enc->extradata_size)
1524  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1525 
1526  return update_size(pb, pos);
1527 }
1528 
1529 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1530 {
1531  AVRational sar;
1532  av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1533  track->enc->sample_aspect_ratio.den, INT_MAX);
1534 
1535  avio_wb32(pb, 16);
1536  ffio_wfourcc(pb, "pasp");
1537  avio_wb32(pb, sar.num);
1538  avio_wb32(pb, sar.den);
1539  return 16;
1540 }
1541 
1542 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1543 {
1544  uint32_t gama = 0;
1545  if (gamma <= 0.0)
1546  {
1547  gamma = avpriv_get_gamma_from_trc(track->enc->color_trc);
1548  }
1549  av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1550 
1551  if (gamma > 1e-6) {
1552  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1553  av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
1554 
1555  av_assert0(track->mode == MODE_MOV);
1556  avio_wb32(pb, 12);
1557  ffio_wfourcc(pb, "gama");
1558  avio_wb32(pb, gama);
1559  return 12;
1560  }
1561  else {
1562  av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1563  }
1564  return 0;
1565 }
1566 
1567 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1568 {
1569  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1570  // Ref (MP4): ISO/IEC 14496-12:2012
1571 
1572  if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1573  track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1574  track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1575  if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1576  || (track->enc->width == 1280 && track->enc->height == 720)) {
1577  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1579  } else if (track->enc->width == 720 && track->height == 576) {
1580  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1582  } else if (track->enc->width == 720 &&
1583  (track->height == 486 || track->height == 480)) {
1584  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1586  } else {
1587  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1588  }
1589  switch (track->enc->color_primaries) {
1590  case AVCOL_PRI_BT709:
1591  track->enc->color_trc = AVCOL_TRC_BT709;
1592  track->enc->colorspace = AVCOL_SPC_BT709;
1593  break;
1594  case AVCOL_PRI_SMPTE170M:
1595  case AVCOL_PRI_BT470BG:
1596  track->enc->color_trc = AVCOL_TRC_BT709;
1598  break;
1599  }
1600  }
1601 
1602  /* We should only ever be called by MOV or MP4. */
1603  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1604 
1605  avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1606  ffio_wfourcc(pb, "colr");
1607  if (track->mode == MODE_MP4)
1608  ffio_wfourcc(pb, "nclx");
1609  else
1610  ffio_wfourcc(pb, "nclc");
1611  switch (track->enc->color_primaries) {
1612  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1613  case AVCOL_PRI_SMPTE170M:
1614  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1615  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1616  default: avio_wb16(pb, 2);
1617  }
1618  switch (track->enc->color_trc) {
1619  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1620  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1621  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1622  default: avio_wb16(pb, 2);
1623  }
1624  switch (track->enc->colorspace) {
1625  case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1626  case AVCOL_SPC_BT470BG:
1627  case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1628  case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1629  default: avio_wb16(pb, 2);
1630  }
1631 
1632  if (track->mode == MODE_MP4) {
1633  int full_range = track->enc->color_range == AVCOL_RANGE_JPEG;
1634  avio_w8(pb, full_range << 7);
1635  return 19;
1636  } else {
1637  return 18;
1638  }
1639 }
1640 
1641 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1642 {
1643  AVDictionaryEntry *encoder;
1644  int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1645  || (track->enc->width == 1440 && track->enc->height == 1080)
1646  || (track->enc->width == 1920 && track->enc->height == 1080);
1647 
1648  if (track->mode == MODE_MOV &&
1649  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1650  av_strlcpy(compressor_name, encoder->value, 32);
1651  } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1653  AVStream *st = track->st;
1654  int rate = av_q2d(find_fps(NULL, st));
1655  av_strlcatf(compressor_name, len, "XDCAM");
1656  if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1657  av_strlcatf(compressor_name, len, " HD422");
1658  } else if(track->enc->width == 1440) {
1659  av_strlcatf(compressor_name, len, " HD");
1660  } else
1661  av_strlcatf(compressor_name, len, " EX");
1662 
1663  av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1664 
1665  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1666  }
1667 }
1668 
1670 {
1671  int64_t pos = avio_tell(pb);
1672  char compressor_name[32] = { 0 };
1673  int avid = 0;
1674 
1675  avio_wb32(pb, 0); /* size */
1676  if (mov->encryption_scheme != MOV_ENC_NONE) {
1677  ffio_wfourcc(pb, "encv");
1678  } else {
1679  avio_wl32(pb, track->tag); // store it byteswapped
1680  }
1681  avio_wb32(pb, 0); /* Reserved */
1682  avio_wb16(pb, 0); /* Reserved */
1683  avio_wb16(pb, 1); /* Data-reference index */
1684 
1685  avio_wb16(pb, 0); /* Codec stream version */
1686  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1687  if (track->mode == MODE_MOV) {
1688  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1689  if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1690  avio_wb32(pb, 0); /* Temporal Quality */
1691  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1692  } else {
1693  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1694  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1695  }
1696  } else {
1697  avio_wb32(pb, 0); /* Reserved */
1698  avio_wb32(pb, 0); /* Reserved */
1699  avio_wb32(pb, 0); /* Reserved */
1700  }
1701  avio_wb16(pb, track->enc->width); /* Video width */
1702  avio_wb16(pb, track->height); /* Video height */
1703  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1704  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1705  avio_wb32(pb, 0); /* Data size (= 0) */
1706  avio_wb16(pb, 1); /* Frame count (= 1) */
1707 
1708  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1709  find_compressor(compressor_name, 32, track);
1710  avio_w8(pb, strlen(compressor_name));
1711  avio_write(pb, compressor_name, 31);
1712 
1713  if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1714  avio_wb16(pb, track->enc->bits_per_coded_sample);
1715  else
1716  avio_wb16(pb, 0x18); /* Reserved */
1717  avio_wb16(pb, 0xffff); /* Reserved */
1718  if (track->tag == MKTAG('m','p','4','v'))
1719  mov_write_esds_tag(pb, track);
1720  else if (track->enc->codec_id == AV_CODEC_ID_H263)
1721  mov_write_d263_tag(pb);
1722  else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1723  track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1724  mov_write_extradata_tag(pb, track);
1725  avio_wb32(pb, 0);
1726  } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1727  mov_write_avid_tag(pb, track);
1728  avid = 1;
1729  } else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1730  mov_write_hvcc_tag(pb, track);
1731  else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1732  mov_write_avcc_tag(pb, track);
1733  if (track->mode == MODE_IPOD)
1735  } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1736  mov_write_dvc1_tag(pb, track);
1737  else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1738  track->enc->codec_id == AV_CODEC_ID_VP6A) {
1739  /* Don't write any potential extradata here - the cropping
1740  * is signalled via the normal width/height fields. */
1741  } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1742  if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1743  mov_write_dpxe_tag(pb, track);
1744  } else if (track->vos_len > 0)
1745  mov_write_glbl_tag(pb, track);
1746 
1747  if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1748  track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1749  track->enc->codec_id != AV_CODEC_ID_DNXHD)
1750  if (track->enc->field_order != AV_FIELD_UNKNOWN)
1751  mov_write_fiel_tag(pb, track);
1752 
1753  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1754  if (track->mode == MODE_MOV)
1755  mov_write_gama_tag(pb, track, mov->gamma);
1756  else
1757  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1758  }
1759  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1760  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1761  mov_write_colr_tag(pb, track);
1762  else
1763  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1764  }
1765 
1766  if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1767  track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1768  mov_write_pasp_tag(pb, track);
1769  }
1770 
1771  if (mov->encryption_scheme != MOV_ENC_NONE) {
1772  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1773  }
1774 
1775  /* extra padding for avid stsd */
1776  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1777  if (avid)
1778  avio_wb32(pb, 0);
1779 
1780  return update_size(pb, pos);
1781 }
1782 
1783 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1784 {
1785  int64_t pos = avio_tell(pb);
1786  avio_wb32(pb, 0); /* size */
1787  ffio_wfourcc(pb, "rtp ");
1788  avio_wb32(pb, 0); /* Reserved */
1789  avio_wb16(pb, 0); /* Reserved */
1790  avio_wb16(pb, 1); /* Data-reference index */
1791 
1792  avio_wb16(pb, 1); /* Hint track version */
1793  avio_wb16(pb, 1); /* Highest compatible version */
1794  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1795 
1796  avio_wb32(pb, 12); /* size */
1797  ffio_wfourcc(pb, "tims");
1798  avio_wb32(pb, track->timescale);
1799 
1800  return update_size(pb, pos);
1801 }
1802 
1803 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1804 {
1805  uint64_t str_size =strlen(reel_name);
1806  int64_t pos = avio_tell(pb);
1807 
1808  if (str_size >= UINT16_MAX){
1809  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1810  avio_wb16(pb, 0);
1811  return AVERROR(EINVAL);
1812  }
1813 
1814  avio_wb32(pb, 0); /* size */
1815  ffio_wfourcc(pb, "name"); /* Data format */
1816  avio_wb16(pb, str_size); /* string size */
1817  avio_wb16(pb, track->language); /* langcode */
1818  avio_write(pb, reel_name, str_size); /* reel name */
1819  return update_size(pb,pos);
1820 }
1821 
1822 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1823 {
1824  int64_t pos = avio_tell(pb);
1825 #if 1
1826  int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1827  int nb_frames = ROUNDED_DIV(track->enc->time_base.den, track->enc->time_base.num);
1828  AVDictionaryEntry *t = NULL;
1829 
1830  if (nb_frames > 255) {
1831  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1832  return AVERROR(EINVAL);
1833  }
1834 
1835  avio_wb32(pb, 0); /* size */
1836  ffio_wfourcc(pb, "tmcd"); /* Data format */
1837  avio_wb32(pb, 0); /* Reserved */
1838  avio_wb32(pb, 1); /* Data reference index */
1839  avio_wb32(pb, 0); /* Flags */
1840  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1841  avio_wb32(pb, track->timescale); /* Timescale */
1842  avio_wb32(pb, frame_duration); /* Frame duration */
1843  avio_w8(pb, nb_frames); /* Number of frames */
1844  avio_w8(pb, 0); /* Reserved */
1845 
1846  if (track->st)
1847  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1848 
1849  if (t && utf8len(t->value))
1850  mov_write_source_reference_tag(pb, track, t->value);
1851  else
1852  avio_wb16(pb, 0); /* zero size */
1853 #else
1854 
1855  avio_wb32(pb, 0); /* size */
1856  ffio_wfourcc(pb, "tmcd"); /* Data format */
1857  avio_wb32(pb, 0); /* Reserved */
1858  avio_wb32(pb, 1); /* Data reference index */
1859  if (track->enc->extradata_size)
1860  avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1861 #endif
1862  return update_size(pb, pos);
1863 }
1864 
1866 {
1867  int64_t pos = avio_tell(pb);
1868  avio_wb32(pb, 0); /* size */
1869  ffio_wfourcc(pb, "stsd");
1870  avio_wb32(pb, 0); /* version & flags */
1871  avio_wb32(pb, 1); /* entry count */
1872  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1873  mov_write_video_tag(pb, mov, track);
1874  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1875  mov_write_audio_tag(pb, mov, track);
1876  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1877  mov_write_subtitle_tag(pb, track);
1878  else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1879  mov_write_rtp_tag(pb, track);
1880  else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1881  mov_write_tmcd_tag(pb, track);
1882  return update_size(pb, pos);
1883 }
1884 
1885 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1886 {
1887  MOVStts *ctts_entries;
1888  uint32_t entries = 0;
1889  uint32_t atom_size;
1890  int i;
1891 
1892  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1893  if (!ctts_entries)
1894  return AVERROR(ENOMEM);
1895  ctts_entries[0].count = 1;
1896  ctts_entries[0].duration = track->cluster[0].cts;
1897  for (i = 1; i < track->entry; i++) {
1898  if (track->cluster[i].cts == ctts_entries[entries].duration) {
1899  ctts_entries[entries].count++; /* compress */
1900  } else {
1901  entries++;
1902  ctts_entries[entries].duration = track->cluster[i].cts;
1903  ctts_entries[entries].count = 1;
1904  }
1905  }
1906  entries++; /* last one */
1907  atom_size = 16 + (entries * 8);
1908  avio_wb32(pb, atom_size); /* size */
1909  ffio_wfourcc(pb, "ctts");
1910  avio_wb32(pb, 0); /* version & flags */
1911  avio_wb32(pb, entries); /* entry count */
1912  for (i = 0; i < entries; i++) {
1913  avio_wb32(pb, ctts_entries[i].count);
1914  avio_wb32(pb, ctts_entries[i].duration);
1915  }
1916  av_free(ctts_entries);
1917  return atom_size;
1918 }
1919 
1920 /* Time to sample atom */
1921 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1922 {
1923  MOVStts *stts_entries = NULL;
1924  uint32_t entries = -1;
1925  uint32_t atom_size;
1926  int i;
1927 
1928  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1929  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1930  if (!stts_entries)
1931  return AVERROR(ENOMEM);
1932  stts_entries[0].count = track->sample_count;
1933  stts_entries[0].duration = 1;
1934  entries = 1;
1935  } else {
1936  if (track->entry) {
1937  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
1938  if (!stts_entries)
1939  return AVERROR(ENOMEM);
1940  }
1941  for (i = 0; i < track->entry; i++) {
1942  int duration = get_cluster_duration(track, i);
1943  if (i && duration == stts_entries[entries].duration) {
1944  stts_entries[entries].count++; /* compress */
1945  } else {
1946  entries++;
1947  stts_entries[entries].duration = duration;
1948  stts_entries[entries].count = 1;
1949  }
1950  }
1951  entries++; /* last one */
1952  }
1953  atom_size = 16 + (entries * 8);
1954  avio_wb32(pb, atom_size); /* size */
1955  ffio_wfourcc(pb, "stts");
1956  avio_wb32(pb, 0); /* version & flags */
1957  avio_wb32(pb, entries); /* entry count */
1958  for (i = 0; i < entries; i++) {
1959  avio_wb32(pb, stts_entries[i].count);
1960  avio_wb32(pb, stts_entries[i].duration);
1961  }
1962  av_free(stts_entries);
1963  return atom_size;
1964 }
1965 
1967 {
1968  avio_wb32(pb, 28); /* size */
1969  ffio_wfourcc(pb, "dref");
1970  avio_wb32(pb, 0); /* version & flags */
1971  avio_wb32(pb, 1); /* entry count */
1972 
1973  avio_wb32(pb, 0xc); /* size */
1974  //FIXME add the alis and rsrc atom
1975  ffio_wfourcc(pb, "url ");
1976  avio_wb32(pb, 1); /* version & flags */
1977 
1978  return 28;
1979 }
1980 
1982 {
1983  int64_t pos = avio_tell(pb);
1984  int ret;
1985 
1986  avio_wb32(pb, 0); /* size */
1987  ffio_wfourcc(pb, "stbl");
1988  mov_write_stsd_tag(pb, mov, track);
1989  mov_write_stts_tag(pb, track);
1990  if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1991  track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1992  track->has_keyframes && track->has_keyframes < track->entry)
1993  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1994  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1996  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1997  track->flags & MOV_TRACK_CTTS && track->entry) {
1998 
1999  if ((ret = mov_write_ctts_tag(pb, track)) < 0)
2000  return ret;
2001  }
2002  mov_write_stsc_tag(pb, track);
2003  mov_write_stsz_tag(pb, track);
2004  mov_write_stco_tag(pb, track);
2006  ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2007  }
2008  return update_size(pb, pos);
2009 }
2010 
2012 {
2013  int64_t pos = avio_tell(pb);
2014  avio_wb32(pb, 0); /* size */
2015  ffio_wfourcc(pb, "dinf");
2016  mov_write_dref_tag(pb);
2017  return update_size(pb, pos);
2018 }
2019 
2021 {
2022  avio_wb32(pb, 12);
2023  ffio_wfourcc(pb, "nmhd");
2024  avio_wb32(pb, 0);
2025  return 12;
2026 }
2027 
2028 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2029 {
2030  int64_t pos = avio_tell(pb);
2031  const char *font = "Lucida Grande";
2032  avio_wb32(pb, 0); /* size */
2033  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2034  avio_wb32(pb, 0); /* version & flags */
2035  avio_wb16(pb, 0); /* text font */
2036  avio_wb16(pb, 0); /* text face */
2037  avio_wb16(pb, 12); /* text size */
2038  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2039  avio_wb16(pb, 0x0000); /* text color (red) */
2040  avio_wb16(pb, 0x0000); /* text color (green) */
2041  avio_wb16(pb, 0x0000); /* text color (blue) */
2042  avio_wb16(pb, 0xffff); /* background color (red) */
2043  avio_wb16(pb, 0xffff); /* background color (green) */
2044  avio_wb16(pb, 0xffff); /* background color (blue) */
2045  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2046  avio_write(pb, font, strlen(font)); /* font name */
2047  return update_size(pb, pos);
2048 }
2049 
2050 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2051 {
2052  int64_t pos = avio_tell(pb);
2053  avio_wb32(pb, 0); /* size */
2054  ffio_wfourcc(pb, "gmhd");
2055  avio_wb32(pb, 0x18); /* gmin size */
2056  ffio_wfourcc(pb, "gmin");/* generic media info */
2057  avio_wb32(pb, 0); /* version & flags */
2058  avio_wb16(pb, 0x40); /* graphics mode = */
2059  avio_wb16(pb, 0x8000); /* opColor (r?) */
2060  avio_wb16(pb, 0x8000); /* opColor (g?) */
2061  avio_wb16(pb, 0x8000); /* opColor (b?) */
2062  avio_wb16(pb, 0); /* balance */
2063  avio_wb16(pb, 0); /* reserved */
2064 
2065  /*
2066  * This special text atom is required for
2067  * Apple Quicktime chapters. The contents
2068  * don't appear to be documented, so the
2069  * bytes are copied verbatim.
2070  */
2071  if (track->tag != MKTAG('c','6','0','8')) {
2072  avio_wb32(pb, 0x2C); /* size */
2073  ffio_wfourcc(pb, "text");
2074  avio_wb16(pb, 0x01);
2075  avio_wb32(pb, 0x00);
2076  avio_wb32(pb, 0x00);
2077  avio_wb32(pb, 0x00);
2078  avio_wb32(pb, 0x01);
2079  avio_wb32(pb, 0x00);
2080  avio_wb32(pb, 0x00);
2081  avio_wb32(pb, 0x00);
2082  avio_wb32(pb, 0x00004000);
2083  avio_wb16(pb, 0x0000);
2084  }
2085 
2086  if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2087  int64_t tmcd_pos = avio_tell(pb);
2088  avio_wb32(pb, 0); /* size */
2089  ffio_wfourcc(pb, "tmcd");
2090  mov_write_tcmi_tag(pb, track);
2091  update_size(pb, tmcd_pos);
2092  }
2093  return update_size(pb, pos);
2094 }
2095 
2097 {
2098  avio_wb32(pb, 16); /* size */
2099  ffio_wfourcc(pb, "smhd");
2100  avio_wb32(pb, 0); /* version & flags */
2101  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2102  avio_wb16(pb, 0); /* reserved */
2103  return 16;
2104 }
2105 
2107 {
2108  avio_wb32(pb, 0x14); /* size (always 0x14) */
2109  ffio_wfourcc(pb, "vmhd");
2110  avio_wb32(pb, 0x01); /* version & flags */
2111  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2112  return 0x14;
2113 }
2114 
2115 static int is_clcp_track(MOVTrack *track)
2116 {
2117  return track->tag == MKTAG('c','7','0','8') ||
2118  track->tag == MKTAG('c','6','0','8');
2119 }
2120 
2121 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2122 {
2123  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2124  int64_t pos = avio_tell(pb);
2125 
2126  hdlr = "dhlr";
2127  hdlr_type = "url ";
2128  descr = "DataHandler";
2129 
2130  if (track) {
2131  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2132  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2133  hdlr_type = "vide";
2134  descr = "VideoHandler";
2135  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2136  hdlr_type = "soun";
2137  descr = "SoundHandler";
2138  } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2139  if (is_clcp_track(track)) {
2140  hdlr_type = "clcp";
2141  descr = "ClosedCaptionHandler";
2142  } else {
2143  if (track->tag == MKTAG('t','x','3','g')) {
2144  hdlr_type = "sbtl";
2145  } else if (track->tag == MKTAG('m','p','4','s')) {
2146  hdlr_type = "subp";
2147  } else {
2148  hdlr_type = "text";
2149  }
2150  descr = "SubtitleHandler";
2151  }
2152  } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2153  hdlr_type = "hint";
2154  descr = "HintHandler";
2155  } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2156  hdlr_type = "tmcd";
2157  descr = "TimeCodeHandler";
2158  } else {
2159  char tag_buf[32];
2160  av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2161  track->enc->codec_tag);
2162 
2163  av_log(track->enc, AV_LOG_WARNING,
2164  "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2165  tag_buf, track->enc->codec_tag);
2166  }
2167  if (track->st) {
2168  // hdlr.name is used by some players to identify the content title
2169  // of the track. So if an alternate handler description is
2170  // specified, use it.
2171  AVDictionaryEntry *t;
2172  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2173  if (t && utf8len(t->value))
2174  descr = t->value;
2175  }
2176  }
2177 
2178  avio_wb32(pb, 0); /* size */
2179  ffio_wfourcc(pb, "hdlr");
2180  avio_wb32(pb, 0); /* Version & flags */
2181  avio_write(pb, hdlr, 4); /* handler */
2182  ffio_wfourcc(pb, hdlr_type); /* handler type */
2183  avio_wb32(pb, 0); /* reserved */
2184  avio_wb32(pb, 0); /* reserved */
2185  avio_wb32(pb, 0); /* reserved */
2186  if (!track || track->mode == MODE_MOV)
2187  avio_w8(pb, strlen(descr)); /* pascal string */
2188  avio_write(pb, descr, strlen(descr)); /* handler description */
2189  if (track && track->mode != MODE_MOV)
2190  avio_w8(pb, 0); /* c string */
2191  return update_size(pb, pos);
2192 }
2193 
2195 {
2196  /* This atom must be present, but leaving the values at zero
2197  * seems harmless. */
2198  avio_wb32(pb, 28); /* size */
2199  ffio_wfourcc(pb, "hmhd");
2200  avio_wb32(pb, 0); /* version, flags */
2201  avio_wb16(pb, 0); /* maxPDUsize */
2202  avio_wb16(pb, 0); /* avgPDUsize */
2203  avio_wb32(pb, 0); /* maxbitrate */
2204  avio_wb32(pb, 0); /* avgbitrate */
2205  avio_wb32(pb, 0); /* reserved */
2206  return 28;
2207 }
2208 
2210 {
2211  int64_t pos = avio_tell(pb);
2212  int ret;
2213 
2214  avio_wb32(pb, 0); /* size */
2215  ffio_wfourcc(pb, "minf");
2216  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2217  mov_write_vmhd_tag(pb);
2218  else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2219  mov_write_smhd_tag(pb);
2220  else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2221  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2222  mov_write_gmhd_tag(pb, track);
2223  } else {
2224  mov_write_nmhd_tag(pb);
2225  }
2226  } else if (track->tag == MKTAG('r','t','p',' ')) {
2227  mov_write_hmhd_tag(pb);
2228  } else if (track->tag == MKTAG('t','m','c','d')) {
2229  mov_write_gmhd_tag(pb, track);
2230  }
2231  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2232  mov_write_hdlr_tag(pb, NULL);
2233  mov_write_dinf_tag(pb);
2234  if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2235  return ret;
2236  return update_size(pb, pos);
2237 }
2238 
2240  MOVTrack *track)
2241 {
2242  int version = track->track_duration < INT32_MAX ? 0 : 1;
2243 
2244  if (track->mode == MODE_ISM)
2245  version = 1;
2246 
2247  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2248  ffio_wfourcc(pb, "mdhd");
2249  avio_w8(pb, version);
2250  avio_wb24(pb, 0); /* flags */
2251  if (version == 1) {
2252  avio_wb64(pb, track->time);
2253  avio_wb64(pb, track->time);
2254  } else {
2255  avio_wb32(pb, track->time); /* creation time */
2256  avio_wb32(pb, track->time); /* modification time */
2257  }
2258  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2259  if (!track->entry && mov->mode == MODE_ISM)
2260  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2261  else if (!track->entry)
2262  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2263  else
2264  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2265  avio_wb16(pb, track->language); /* language */
2266  avio_wb16(pb, 0); /* reserved (quality) */
2267 
2268  if (version != 0 && track->mode == MODE_MOV) {
2270  "FATAL error, file duration too long for timebase, this file will not be\n"
2271  "playable with quicktime. Choose a different timebase or a different\n"
2272  "container format\n");
2273  }
2274 
2275  return 32;
2276 }
2277 
2279  MOVTrack *track)
2280 {
2281  int64_t pos = avio_tell(pb);
2282  int ret;
2283 
2284  avio_wb32(pb, 0); /* size */
2285  ffio_wfourcc(pb, "mdia");
2286  mov_write_mdhd_tag(pb, mov, track);
2287  mov_write_hdlr_tag(pb, track);
2288  if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2289  return ret;
2290  return update_size(pb, pos);
2291 }
2292 
2293 /* transformation matrix
2294  |a b u|
2295  |c d v|
2296  |tx ty w| */
2297 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2298  int16_t d, int16_t tx, int16_t ty)
2299 {
2300  avio_wb32(pb, a << 16); /* 16.16 format */
2301  avio_wb32(pb, b << 16); /* 16.16 format */
2302  avio_wb32(pb, 0); /* u in 2.30 format */
2303  avio_wb32(pb, c << 16); /* 16.16 format */
2304  avio_wb32(pb, d << 16); /* 16.16 format */
2305  avio_wb32(pb, 0); /* v in 2.30 format */
2306  avio_wb32(pb, tx << 16); /* 16.16 format */
2307  avio_wb32(pb, ty << 16); /* 16.16 format */
2308  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2309 }
2310 
2312  MOVTrack *track, AVStream *st)
2313 {
2315  track->timescale, AV_ROUND_UP);
2316  int version = duration < INT32_MAX ? 0 : 1;
2318  int rotation = 0;
2319  int group = 0;
2320 
2321  uint32_t *display_matrix = NULL;
2322  int display_matrix_size, i;
2323 
2324  if (st) {
2325  if (mov->per_stream_grouping)
2326  group = st->index;
2327  else
2328  group = st->codec->codec_type;
2329 
2330  display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2331  &display_matrix_size);
2332  if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2333  display_matrix = NULL;
2334  }
2335 
2336  if (track->flags & MOV_TRACK_ENABLED)
2337  flags |= MOV_TKHD_FLAG_ENABLED;
2338 
2339  if (track->mode == MODE_ISM)
2340  version = 1;
2341 
2342  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2343  ffio_wfourcc(pb, "tkhd");
2344  avio_w8(pb, version);
2345  avio_wb24(pb, flags);
2346  if (version == 1) {
2347  avio_wb64(pb, track->time);
2348  avio_wb64(pb, track->time);
2349  } else {
2350  avio_wb32(pb, track->time); /* creation time */
2351  avio_wb32(pb, track->time); /* modification time */
2352  }
2353  avio_wb32(pb, track->track_id); /* track-id */
2354  avio_wb32(pb, 0); /* reserved */
2355  if (!track->entry && mov->mode == MODE_ISM)
2356  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2357  else if (!track->entry)
2358  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2359  else
2360  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2361 
2362  avio_wb32(pb, 0); /* reserved */
2363  avio_wb32(pb, 0); /* reserved */
2364  avio_wb16(pb, 0); /* layer */
2365  avio_wb16(pb, group); /* alternate group) */
2366  /* Volume, only for audio */
2367  if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2368  avio_wb16(pb, 0x0100);
2369  else
2370  avio_wb16(pb, 0);
2371  avio_wb16(pb, 0); /* reserved */
2372 
2373  /* Matrix structure */
2374  if (st && st->metadata) {
2375  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2376  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2377  }
2378  if (display_matrix) {
2379  for (i = 0; i < 9; i++)
2380  avio_wb32(pb, display_matrix[i]);
2381  } else if (rotation == 90) {
2382  write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2383  } else if (rotation == 180) {
2384  write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2385  } else if (rotation == 270) {
2386  write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2387  } else {
2388  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2389  }
2390  /* Track width and height, for visual only */
2391  if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2392  track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2393  if (track->mode == MODE_MOV) {
2394  avio_wb32(pb, track->enc->width << 16);
2395  avio_wb32(pb, track->height << 16);
2396  } else {
2397  int64_t track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2398  track->enc->width * 0x10000LL,
2399  st->sample_aspect_ratio.den);
2400  if (!track_width_1616 ||
2401  track->height != track->enc->height ||
2402  track_width_1616 > UINT32_MAX)
2403  track_width_1616 = track->enc->width * 0x10000U;
2404  avio_wb32(pb, track_width_1616);
2405  avio_wb32(pb, track->height * 0x10000U);
2406  }
2407  } else {
2408  avio_wb32(pb, 0);
2409  avio_wb32(pb, 0);
2410  }
2411  return 0x5c;
2412 }
2413 
2414 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2415 {
2417  track->enc->sample_aspect_ratio.den);
2418 
2419  int64_t pos = avio_tell(pb);
2420 
2421  avio_wb32(pb, 0); /* size */
2422  ffio_wfourcc(pb, "tapt");
2423 
2424  avio_wb32(pb, 20);
2425  ffio_wfourcc(pb, "clef");
2426  avio_wb32(pb, 0);
2427  avio_wb32(pb, width << 16);
2428  avio_wb32(pb, track->enc->height << 16);
2429 
2430  avio_wb32(pb, 20);
2431  ffio_wfourcc(pb, "prof");
2432  avio_wb32(pb, 0);
2433  avio_wb32(pb, width << 16);
2434  avio_wb32(pb, track->enc->height << 16);
2435 
2436  avio_wb32(pb, 20);
2437  ffio_wfourcc(pb, "enof");
2438  avio_wb32(pb, 0);
2439  avio_wb32(pb, track->enc->width << 16);
2440  avio_wb32(pb, track->enc->height << 16);
2441 
2442  return update_size(pb, pos);
2443 }
2444 
2445 // This box seems important for the psp playback ... without it the movie seems to hang
2447  MOVTrack *track)
2448 {
2450  track->timescale, AV_ROUND_UP);
2451  int version = duration < INT32_MAX ? 0 : 1;
2452  int entry_size, entry_count, size;
2453  int64_t delay, start_ct = track->start_cts;
2454  int64_t start_dts = track->start_dts;
2455 
2456  if (track->entry) {
2457  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2458 
2459  av_log(mov->fc, AV_LOG_DEBUG,
2460  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2461  track->cluster[0].dts, track->cluster[0].cts,
2462  start_dts, start_ct, track->track_id);
2463  start_dts = track->cluster[0].dts;
2464  start_ct = track->cluster[0].cts;
2465  }
2466  }
2467 
2468  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2469  track->timescale, AV_ROUND_DOWN);
2470  version |= delay < INT32_MAX ? 0 : 1;
2471 
2472  entry_size = (version == 1) ? 20 : 12;
2473  entry_count = 1 + (delay > 0);
2474  size = 24 + entry_count * entry_size;
2475 
2476  /* write the atom data */
2477  avio_wb32(pb, size);
2478  ffio_wfourcc(pb, "edts");
2479  avio_wb32(pb, size - 8);
2480  ffio_wfourcc(pb, "elst");
2481  avio_w8(pb, version);
2482  avio_wb24(pb, 0); /* flags */
2483 
2484  avio_wb32(pb, entry_count);
2485  if (delay > 0) { /* add an empty edit to delay presentation */
2486  /* In the positive delay case, the delay includes the cts
2487  * offset, and the second edit list entry below trims out
2488  * the same amount from the actual content. This makes sure
2489  * that the offsetted last sample is included in the edit
2490  * list duration as well. */
2491  if (version == 1) {
2492  avio_wb64(pb, delay);
2493  avio_wb64(pb, -1);
2494  } else {
2495  avio_wb32(pb, delay);
2496  avio_wb32(pb, -1);
2497  }
2498  avio_wb32(pb, 0x00010000);
2499  } else {
2500  /* Avoid accidentally ending up with start_ct = -1 which has got a
2501  * special meaning. Normally start_ct should end up positive or zero
2502  * here, but use FFMIN in case dts is a a small positive integer
2503  * rounded to 0 when represented in MOV_TIMESCALE units. */
2504  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2505  start_ct = -FFMIN(start_dts, 0);
2506  /* Note, this delay is calculated from the pts of the first sample,
2507  * ensuring that we don't reduce the duration for cases with
2508  * dts<0 pts=0. */
2509  duration += delay;
2510  }
2511 
2512  /* For fragmented files, we don't know the full length yet. Setting
2513  * duration to 0 allows us to only specify the offset, including
2514  * the rest of the content (from all future fragments) without specifying
2515  * an explicit duration. */
2516  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2517  duration = 0;
2518 
2519  /* duration */
2520  if (version == 1) {
2521  avio_wb64(pb, duration);
2522  avio_wb64(pb, start_ct);
2523  } else {
2524  avio_wb32(pb, duration);
2525  avio_wb32(pb, start_ct);
2526  }
2527  avio_wb32(pb, 0x00010000);
2528  return size;
2529 }
2530 
2531 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2532 {
2533  avio_wb32(pb, 20); // size
2534  ffio_wfourcc(pb, "tref");
2535  avio_wb32(pb, 12); // size (subatom)
2536  avio_wl32(pb, track->tref_tag);
2537  avio_wb32(pb, track->tref_id);
2538  return 20;
2539 }
2540 
2541 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2543 {
2544  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2545  ffio_wfourcc(pb, "uuid");
2546  ffio_wfourcc(pb, "USMT");
2547  avio_wb32(pb, 0x21d24fce);
2548  avio_wb32(pb, 0xbb88695c);
2549  avio_wb32(pb, 0xfac9c740);
2550  avio_wb32(pb, 0x1c); // another size here!
2551  ffio_wfourcc(pb, "MTDT");
2552  avio_wb32(pb, 0x00010012);
2553  avio_wb32(pb, 0x0a);
2554  avio_wb32(pb, 0x55c40000);
2555  avio_wb32(pb, 0x1);
2556  avio_wb32(pb, 0x0);
2557  return 0x34;
2558 }
2559 
2560 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2561 {
2562  AVFormatContext *ctx = track->rtp_ctx;
2563  char buf[1000] = "";
2564  int len;
2565 
2566  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2567  NULL, NULL, 0, 0, ctx);
2568  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2569  len = strlen(buf);
2570 
2571  avio_wb32(pb, len + 24);
2572  ffio_wfourcc(pb, "udta");
2573  avio_wb32(pb, len + 16);
2574  ffio_wfourcc(pb, "hnti");
2575  avio_wb32(pb, len + 8);
2576  ffio_wfourcc(pb, "sdp ");
2577  avio_write(pb, buf, len);
2578  return len + 24;
2579 }
2580 
2582  const char *tag, const char *str)
2583 {
2584  int64_t pos = avio_tell(pb);
2585  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2586  if (!t || !utf8len(t->value))
2587  return 0;
2588 
2589  avio_wb32(pb, 0); /* size */
2590  ffio_wfourcc(pb, tag); /* type */
2591  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2592  return update_size(pb, pos);
2593 }
2594 
2596  AVStream *st)
2597 {
2598  AVIOContext *pb_buf;
2599  int ret, size;
2600  uint8_t *buf;
2601 
2602  if (!st)
2603  return 0;
2604 
2605  ret = avio_open_dyn_buf(&pb_buf);
2606  if (ret < 0)
2607  return ret;
2608 
2609  if (mov->mode & MODE_MP4)
2610  mov_write_track_metadata(pb_buf, st, "name", "title");
2611 
2612  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2613  avio_wb32(pb, size + 8);
2614  ffio_wfourcc(pb, "udta");
2615  avio_write(pb, buf, size);
2616  }
2617  av_free(buf);
2618 
2619  return 0;
2620 }
2621 
2623  MOVTrack *track, AVStream *st)
2624 {
2625  int64_t pos = avio_tell(pb);
2626  int entry_backup = track->entry;
2627  int chunk_backup = track->chunkCount;
2628  int ret;
2629 
2630  /* If we want to have an empty moov, but some samples already have been
2631  * buffered (delay_moov), pretend that no samples have been written yet. */
2632  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2633  track->chunkCount = track->entry = 0;
2634 
2635  avio_wb32(pb, 0); /* size */
2636  ffio_wfourcc(pb, "trak");
2637  mov_write_tkhd_tag(pb, mov, track, st);
2638 
2639  av_assert2(mov->use_editlist >= 0);
2640 
2641  if (track->start_dts != AV_NOPTS_VALUE) {
2642  if (mov->use_editlist)
2643  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2644  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2645  av_log(mov->fc, AV_LOG_WARNING,
2646  "Not writing any edit list even though one would have been required\n");
2647  }
2648 
2649  if (track->tref_tag)
2650  mov_write_tref_tag(pb, track);
2651 
2652  if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2653  return ret;
2654  if (track->mode == MODE_PSP)
2655  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2656  if (track->tag == MKTAG('r','t','p',' '))
2657  mov_write_udta_sdp(pb, track);
2658  if (track->mode == MODE_MOV) {
2659  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2660  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2661  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2662  mov_write_tapt_tag(pb, track);
2663  }
2664  }
2665  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2666  mov_write_tapt_tag(pb, track);
2667  }
2668  }
2669  mov_write_track_udta_tag(pb, mov, st);
2670  track->entry = entry_backup;
2671  track->chunkCount = chunk_backup;
2672  return update_size(pb, pos);
2673 }
2674 
2676 {
2677  int i, has_audio = 0, has_video = 0;
2678  int64_t pos = avio_tell(pb);
2679  int audio_profile = mov->iods_audio_profile;
2680  int video_profile = mov->iods_video_profile;
2681  for (i = 0; i < mov->nb_streams; i++) {
2682  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2683  has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2684  has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2685  }
2686  }
2687  if (audio_profile < 0)
2688  audio_profile = 0xFF - has_audio;
2689  if (video_profile < 0)
2690  video_profile = 0xFF - has_video;
2691  avio_wb32(pb, 0x0); /* size */
2692  ffio_wfourcc(pb, "iods");
2693  avio_wb32(pb, 0); /* version & flags */
2694  put_descr(pb, 0x10, 7);
2695  avio_wb16(pb, 0x004f);
2696  avio_w8(pb, 0xff);
2697  avio_w8(pb, 0xff);
2698  avio_w8(pb, audio_profile);
2699  avio_w8(pb, video_profile);
2700  avio_w8(pb, 0xff);
2701  return update_size(pb, pos);
2702 }
2703 
2704 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2705 {
2706  avio_wb32(pb, 0x20); /* size */
2707  ffio_wfourcc(pb, "trex");
2708  avio_wb32(pb, 0); /* version & flags */
2709  avio_wb32(pb, track->track_id); /* track ID */
2710  avio_wb32(pb, 1); /* default sample description index */
2711  avio_wb32(pb, 0); /* default sample duration */
2712  avio_wb32(pb, 0); /* default sample size */
2713  avio_wb32(pb, 0); /* default sample flags */
2714  return 0;
2715 }
2716 
2718 {
2719  int64_t pos = avio_tell(pb);
2720  int i;
2721  avio_wb32(pb, 0x0); /* size */
2722  ffio_wfourcc(pb, "mvex");
2723  for (i = 0; i < mov->nb_streams; i++)
2724  mov_write_trex_tag(pb, &mov->tracks[i]);
2725  return update_size(pb, pos);
2726 }
2727 
2729 {
2730  int max_track_id = 1, i;
2731  int64_t max_track_len = 0;
2732  int version;
2733 
2734  for (i = 0; i < mov->nb_streams; i++) {
2735  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2736  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2737  MOV_TIMESCALE,
2738  mov->tracks[i].timescale,
2739  AV_ROUND_UP);
2740  if (max_track_len < max_track_len_temp)
2741  max_track_len = max_track_len_temp;
2742  if (max_track_id < mov->tracks[i].track_id)
2743  max_track_id = mov->tracks[i].track_id;
2744  }
2745  }
2746  /* If using delay_moov, make sure the output is the same as if no
2747  * samples had been written yet. */
2748  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2749  max_track_len = 0;
2750  max_track_id = 1;
2751  }
2752 
2753  version = max_track_len < UINT32_MAX ? 0 : 1;
2754  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2755 
2756  ffio_wfourcc(pb, "mvhd");
2757  avio_w8(pb, version);
2758  avio_wb24(pb, 0); /* flags */
2759  if (version == 1) {
2760  avio_wb64(pb, mov->time);
2761  avio_wb64(pb, mov->time);
2762  } else {
2763  avio_wb32(pb, mov->time); /* creation time */
2764  avio_wb32(pb, mov->time); /* modification time */
2765  }
2766  avio_wb32(pb, MOV_TIMESCALE);
2767  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2768 
2769  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2770  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2771  avio_wb16(pb, 0); /* reserved */
2772  avio_wb32(pb, 0); /* reserved */
2773  avio_wb32(pb, 0); /* reserved */
2774 
2775  /* Matrix structure */
2776  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2777 
2778  avio_wb32(pb, 0); /* reserved (preview time) */
2779  avio_wb32(pb, 0); /* reserved (preview duration) */
2780  avio_wb32(pb, 0); /* reserved (poster time) */
2781  avio_wb32(pb, 0); /* reserved (selection time) */
2782  avio_wb32(pb, 0); /* reserved (selection duration) */
2783  avio_wb32(pb, 0); /* reserved (current time) */
2784  avio_wb32(pb, max_track_id + 1); /* Next track id */
2785  return 0x6c;
2786 }
2787 
2789  AVFormatContext *s)
2790 {
2791  avio_wb32(pb, 33); /* size */
2792  ffio_wfourcc(pb, "hdlr");
2793  avio_wb32(pb, 0);
2794  avio_wb32(pb, 0);
2795  ffio_wfourcc(pb, "mdir");
2796  ffio_wfourcc(pb, "appl");
2797  avio_wb32(pb, 0);
2798  avio_wb32(pb, 0);
2799  avio_w8(pb, 0);
2800  return 33;
2801 }
2802 
2803 /* helper function to write a data tag with the specified string as data */
2804 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2805 {
2806  if (long_style) {
2807  int size = 16 + strlen(data);
2808  avio_wb32(pb, size); /* size */
2809  ffio_wfourcc(pb, "data");
2810  avio_wb32(pb, 1);
2811  avio_wb32(pb, 0);
2812  avio_write(pb, data, strlen(data));
2813  return size;
2814  } else {
2815  if (!lang)
2816  lang = ff_mov_iso639_to_lang("und", 1);
2817  avio_wb16(pb, strlen(data)); /* string length */
2818  avio_wb16(pb, lang);
2819  avio_write(pb, data, strlen(data));
2820  return strlen(data) + 4;
2821  }
2822 }
2823 
2824 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2825  const char *value, int lang, int long_style)
2826 {
2827  int size = 0;
2828  if (value && value[0]) {
2829  int64_t pos = avio_tell(pb);
2830  avio_wb32(pb, 0); /* size */
2831  ffio_wfourcc(pb, name);
2832  mov_write_string_data_tag(pb, value, lang, long_style);
2833  size = update_size(pb, pos);
2834  }
2835  return size;
2836 }
2837 
2839  const char *name, const char *tag,
2840  int long_style)
2841 {
2842  int l, lang = 0, len, len2;
2843  AVDictionaryEntry *t, *t2 = NULL;
2844  char tag2[16];
2845 
2846  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2847  return 0;
2848 
2849  len = strlen(t->key);
2850  snprintf(tag2, sizeof(tag2), "%s-", tag);
2851  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2852  len2 = strlen(t2->key);
2853  if (len2 == len + 4 && !strcmp(t->value, t2->value)
2854  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2855  lang = l;
2856  break;
2857  }
2858  }
2859  return mov_write_string_tag(pb, name, t->value, lang, long_style);
2860 }
2861 
2862 /* iTunes bpm number */
2864 {
2865  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2866  int size = 0, tmpo = t ? atoi(t->value) : 0;
2867  if (tmpo) {
2868  size = 26;
2869  avio_wb32(pb, size);
2870  ffio_wfourcc(pb, "tmpo");
2871  avio_wb32(pb, size-8); /* size */
2872  ffio_wfourcc(pb, "data");
2873  avio_wb32(pb, 0x15); //type specifier
2874  avio_wb32(pb, 0);
2875  avio_wb16(pb, tmpo); // data
2876  }
2877  return size;
2878 }
2879 
2880 /* iTunes track or disc number */
2882  AVFormatContext *s, int disc)
2883 {
2885  disc ? "disc" : "track",
2886  NULL, 0);
2887  int size = 0, track = t ? atoi(t->value) : 0;
2888  if (track) {
2889  int tracks = 0;
2890  char *slash = strchr(t->value, '/');
2891  if (slash)
2892  tracks = atoi(slash + 1);
2893  avio_wb32(pb, 32); /* size */
2894  ffio_wfourcc(pb, disc ? "disk" : "trkn");
2895  avio_wb32(pb, 24); /* size */
2896  ffio_wfourcc(pb, "data");
2897  avio_wb32(pb, 0); // 8 bytes empty
2898  avio_wb32(pb, 0);
2899  avio_wb16(pb, 0); // empty
2900  avio_wb16(pb, track); // track / disc number
2901  avio_wb16(pb, tracks); // total track / disc number
2902  avio_wb16(pb, 0); // empty
2903  size = 32;
2904  }
2905  return size;
2906 }
2907 
2909  const char *name, const char *tag,
2910  int len)
2911 {
2912  AVDictionaryEntry *t = NULL;
2913  uint8_t num;
2914  int size = 24 + len;
2915 
2916  if (len != 1 && len != 4)
2917  return -1;
2918 
2919  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2920  return 0;
2921  num = atoi(t->value);
2922 
2923  avio_wb32(pb, size);
2924  ffio_wfourcc(pb, name);
2925  avio_wb32(pb, size - 8);
2926  ffio_wfourcc(pb, "data");
2927  avio_wb32(pb, 0x15);
2928  avio_wb32(pb, 0);
2929  if (len==4) avio_wb32(pb, num);
2930  else avio_w8 (pb, num);
2931 
2932  return size;
2933 }
2934 
2935 /* iTunes meta data list */
2937  AVFormatContext *s)
2938 {
2939  int64_t pos = avio_tell(pb);
2940  avio_wb32(pb, 0); /* size */
2941  ffio_wfourcc(pb, "ilst");
2942  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2943  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2944  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2945  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2946  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2947  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2948  if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2949  if (!(s->flags & AVFMT_FLAG_BITEXACT))
2950  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2951  }
2952  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2953  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2954  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2955  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2956  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2957  mov_write_string_metadata(s, pb, "desc", "description",1);
2958  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2959  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2960  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2961  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2962  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2963  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2964  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2965  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2966  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2967  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2968  mov_write_trkn_tag(pb, mov, s, 0); // track number
2969  mov_write_trkn_tag(pb, mov, s, 1); // disc number
2970  mov_write_tmpo_tag(pb, s);
2971  return update_size(pb, pos);
2972 }
2973 
2974 /* iTunes meta data tag */
2976  AVFormatContext *s)
2977 {
2978  int size = 0;
2979  int64_t pos = avio_tell(pb);
2980  avio_wb32(pb, 0); /* size */
2981  ffio_wfourcc(pb, "meta");
2982  avio_wb32(pb, 0);
2983  mov_write_itunes_hdlr_tag(pb, mov, s);
2984  mov_write_ilst_tag(pb, mov, s);
2985  size = update_size(pb, pos);
2986  return size;
2987 }
2988 
2990  const char *name, const char *key)
2991 {
2992  int len;
2993  AVDictionaryEntry *t;
2994 
2995  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2996  return 0;
2997 
2998  len = strlen(t->value);
2999  if (len > 0) {
3000  int size = len + 8;
3001  avio_wb32(pb, size);
3002  ffio_wfourcc(pb, name);
3003  avio_write(pb, t->value, len);
3004  return size;
3005  }
3006  return 0;
3007 }
3008 
3009 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3010 {
3011  int val;
3012  while (*b) {
3013  GET_UTF8(val, *b++, return -1;)
3014  avio_wb16(pb, val);
3015  }
3016  avio_wb16(pb, 0x00);
3017  return 0;
3018 }
3019 
3020 static uint16_t language_code(const char *str)
3021 {
3022  return (((str[0] - 0x60) & 0x1F) << 10) +
3023  (((str[1] - 0x60) & 0x1F) << 5) +
3024  (( str[2] - 0x60) & 0x1F);
3025 }
3026 
3028  const char *tag, const char *str)
3029 {
3030  int64_t pos = avio_tell(pb);
3031  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3032  if (!t || !utf8len(t->value))
3033  return 0;
3034  avio_wb32(pb, 0); /* size */
3035  ffio_wfourcc(pb, tag); /* type */
3036  avio_wb32(pb, 0); /* version + flags */
3037  if (!strcmp(tag, "yrrc"))
3038  avio_wb16(pb, atoi(t->value));
3039  else {
3040  avio_wb16(pb, language_code("eng")); /* language */
3041  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3042  if (!strcmp(tag, "albm") &&
3043  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3044  avio_w8(pb, atoi(t->value));
3045  }
3046  return update_size(pb, pos);
3047 }
3048 
3050 {
3051  int64_t pos = avio_tell(pb);
3052  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3053 
3054  avio_wb32(pb, 0); // size
3055  ffio_wfourcc(pb, "chpl");
3056  avio_wb32(pb, 0x01000000); // version + flags
3057  avio_wb32(pb, 0); // unknown
3058  avio_w8(pb, nb_chapters);
3059 
3060  for (i = 0; i < nb_chapters; i++) {
3061  AVChapter *c = s->chapters[i];
3062  AVDictionaryEntry *t;
3063  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3064 
3065  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3066  int len = FFMIN(strlen(t->value), 255);
3067  avio_w8(pb, len);
3068  avio_write(pb, t->value, len);
3069  } else
3070  avio_w8(pb, 0);
3071  }
3072  return update_size(pb, pos);
3073 }
3074 
3076  AVFormatContext *s)
3077 {
3078  AVIOContext *pb_buf;
3079  int ret, size;
3080  uint8_t *buf;
3081 
3082  ret = avio_open_dyn_buf(&pb_buf);
3083  if (ret < 0)
3084  return ret;
3085 
3086  if (mov->mode & MODE_3GP) {
3087  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3088  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3089  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3090  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3091  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3092  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3093  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3094  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3095  } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3096  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3097  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3098  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3099  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3100  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3101  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3102  // currently ignored by mov.c
3103  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3104  // add support for libquicktime, this atom is also actually read by mov.c
3105  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3106  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3107  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3108  mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3109  mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3110  mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3111  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3112  } else {
3113  /* iTunes meta data */
3114  mov_write_meta_tag(pb_buf, mov, s);
3115  }
3116 
3117  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3118  mov_write_chpl_tag(pb_buf, s);
3119 
3120  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3121  avio_wb32(pb, size + 8);
3122  ffio_wfourcc(pb, "udta");
3123  avio_write(pb, buf, size);
3124  }
3125  av_free(buf);
3126 
3127  return 0;
3128 }
3129 
3131  const char *str, const char *lang, int type)
3132 {
3133  int len = utf8len(str) + 1;
3134  if (len <= 0)
3135  return;
3136  avio_wb16(pb, len * 2 + 10); /* size */
3137  avio_wb32(pb, type); /* type */
3138  avio_wb16(pb, language_code(lang)); /* language */
3139  avio_wb16(pb, 0x01); /* ? */
3140  ascii_to_wc(pb, str);
3141 }
3142 
3144 {
3145  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3146  int64_t pos, pos2;
3147 
3148  if (title) {
3149  pos = avio_tell(pb);
3150  avio_wb32(pb, 0); /* size placeholder*/
3151  ffio_wfourcc(pb, "uuid");
3152  ffio_wfourcc(pb, "USMT");
3153  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3154  avio_wb32(pb, 0xbb88695c);
3155  avio_wb32(pb, 0xfac9c740);
3156 
3157  pos2 = avio_tell(pb);
3158  avio_wb32(pb, 0); /* size placeholder*/
3159  ffio_wfourcc(pb, "MTDT");
3160  avio_wb16(pb, 4);
3161 
3162  // ?
3163  avio_wb16(pb, 0x0C); /* size */
3164  avio_wb32(pb, 0x0B); /* type */
3165  avio_wb16(pb, language_code("und")); /* language */
3166  avio_wb16(pb, 0x0); /* ? */
3167  avio_wb16(pb, 0x021C); /* data */
3168 
3169  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3170  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3171  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3172  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3173 
3174  update_size(pb, pos2);
3175  return update_size(pb, pos);
3176  }
3177 
3178  return 0;
3179 }
3180 
3181 static void build_chunks(MOVTrack *trk)
3182 {
3183  int i;
3184  MOVIentry *chunk = &trk->cluster[0];
3185  uint64_t chunkSize = chunk->size;
3186  chunk->chunkNum = 1;
3187  if (trk->chunkCount)
3188  return;
3189  trk->chunkCount = 1;
3190  for (i = 1; i<trk->entry; i++){
3191  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3192  chunkSize + trk->cluster[i].size < (1<<20)){
3193  chunkSize += trk->cluster[i].size;
3194  chunk->samples_in_chunk += trk->cluster[i].entries;
3195  } else {
3196  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3197  chunk=&trk->cluster[i];
3198  chunkSize = chunk->size;
3199  trk->chunkCount++;
3200  }
3201  }
3202 }
3203 
3205  AVFormatContext *s)
3206 {
3207  int i;
3208  int64_t pos = avio_tell(pb);
3209  avio_wb32(pb, 0); /* size placeholder*/
3210  ffio_wfourcc(pb, "moov");
3211 
3212  for (i = 0; i < mov->nb_streams; i++) {
3213  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3214  continue;
3215 
3216  mov->tracks[i].time = mov->time;
3217  mov->tracks[i].track_id = i + 1;
3218 
3219  if (mov->tracks[i].entry)
3220  build_chunks(&mov->tracks[i]);
3221  }
3222 
3223  if (mov->chapter_track)
3224  for (i = 0; i < s->nb_streams; i++) {
3225  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3226  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3227  }
3228  for (i = 0; i < mov->nb_streams; i++) {
3229  MOVTrack *track = &mov->tracks[i];
3230  if (track->tag == MKTAG('r','t','p',' ')) {
3231  track->tref_tag = MKTAG('h','i','n','t');
3232  track->tref_id = mov->tracks[track->src_track].track_id;
3233  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3234  int * fallback, size;
3235  fallback = (int*)av_stream_get_side_data(track->st,
3237  &size);
3238  if (fallback != NULL && size == sizeof(int)) {
3239  if (*fallback >= 0 && *fallback < mov->nb_streams) {
3240  track->tref_tag = MKTAG('f','a','l','l');
3241  track->tref_id = mov->tracks[*fallback].track_id;
3242  }
3243  }
3244  }
3245  }
3246  for (i = 0; i < mov->nb_streams; i++) {
3247  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3248  int src_trk = mov->tracks[i].src_track;
3249  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3250  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3251  //src_trk may have a different timescale than the tmcd track
3252  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3253  mov->tracks[i].timescale,
3254  mov->tracks[src_trk].timescale);
3255  }
3256  }
3257 
3258  mov_write_mvhd_tag(pb, mov);
3259  if (mov->mode != MODE_MOV && !mov->iods_skip)
3260  mov_write_iods_tag(pb, mov);
3261  for (i = 0; i < mov->nb_streams; i++) {
3262  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3263  int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3264  if (ret < 0)
3265  return ret;
3266  }
3267  }
3268  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3269  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3270 
3271  if (mov->mode == MODE_PSP)
3272  mov_write_uuidusmt_tag(pb, s);
3273  else
3274  mov_write_udta_tag(pb, mov, s);
3275 
3276  return update_size(pb, pos);
3277 }
3278 
3279 static void param_write_int(AVIOContext *pb, const char *name, int value)
3280 {
3281  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3282 }
3283 
3284 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3285 {
3286  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3287 }
3288 
3289 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3290 {
3291  char buf[150];
3292  len = FFMIN(sizeof(buf) / 2 - 1, len);
3293  ff_data_to_hex(buf, value, len, 0);
3294  buf[2 * len] = '\0';
3295  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3296 }
3297 
3299 {
3300  int64_t pos = avio_tell(pb);
3301  int i;
3302  static const uint8_t uuid[] = {
3303  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3304  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3305  };
3306 
3307  avio_wb32(pb, 0);
3308  ffio_wfourcc(pb, "uuid");
3309  avio_write(pb, uuid, sizeof(uuid));
3310  avio_wb32(pb, 0);
3311 
3312  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3313  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3314  avio_printf(pb, "<head>\n");
3315  if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3316  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3318  avio_printf(pb, "</head>\n");
3319  avio_printf(pb, "<body>\n");
3320  avio_printf(pb, "<switch>\n");
3321  for (i = 0; i < mov->nb_streams; i++) {
3322  MOVTrack *track = &mov->tracks[i];
3323  const char *type;
3324  /* track->track_id is initialized in write_moov, and thus isn't known
3325  * here yet */
3326  int track_id = i + 1;
3327 
3328  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3329  type = "video";
3330  } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3331  type = "audio";
3332  } else {
3333  continue;
3334  }
3335  avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
3336  (int64_t)track->enc->bit_rate);
3337  param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3338  param_write_int(pb, "trackID", track_id);
3339  if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3340  if (track->enc->codec_id == AV_CODEC_ID_H264) {
3341  uint8_t *ptr;
3342  int size = track->enc->extradata_size;
3343  if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3344  &size)) {
3345  param_write_hex(pb, "CodecPrivateData",
3346  ptr ? ptr : track->enc->extradata,
3347  size);
3348  av_free(ptr);
3349  }
3350  param_write_string(pb, "FourCC", "H264");
3351  } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3352  param_write_string(pb, "FourCC", "WVC1");
3353  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3354  track->enc->extradata_size);
3355  }
3356  param_write_int(pb, "MaxWidth", track->enc->width);
3357  param_write_int(pb, "MaxHeight", track->enc->height);
3358  param_write_int(pb, "DisplayWidth", track->enc->width);
3359  param_write_int(pb, "DisplayHeight", track->enc->height);
3360  } else {
3361  if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3362  switch (track->enc->profile)
3363  {
3364  case FF_PROFILE_AAC_HE_V2:
3365  param_write_string(pb, "FourCC", "AACP");
3366  break;
3367  case FF_PROFILE_AAC_HE:
3368  param_write_string(pb, "FourCC", "AACH");
3369  break;
3370  default:
3371  param_write_string(pb, "FourCC", "AACL");
3372  }
3373  } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3374  param_write_string(pb, "FourCC", "WMAP");
3375  }
3376  param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3377  track->enc->extradata_size);
3379  track->enc->codec_id));
3380  param_write_int(pb, "Channels", track->enc->channels);
3381  param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3382  param_write_int(pb, "BitsPerSample", 16);
3383  param_write_int(pb, "PacketSize", track->enc->block_align ?
3384  track->enc->block_align : 4);
3385  }
3386  avio_printf(pb, "</%s>\n", type);
3387  }
3388  avio_printf(pb, "</switch>\n");
3389  avio_printf(pb, "</body>\n");
3390  avio_printf(pb, "</smil>\n");
3391 
3392  return update_size(pb, pos);
3393 }
3394 
3396 {
3397  avio_wb32(pb, 16);
3398  ffio_wfourcc(pb, "mfhd");
3399  avio_wb32(pb, 0);
3400  avio_wb32(pb, mov->fragments);
3401  return 0;
3402 }
3403 
3404 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3405 {
3408 }
3409 
3411  MOVTrack *track, int64_t moof_offset)
3412 {
3413  int64_t pos = avio_tell(pb);
3416  if (!track->entry) {
3417  flags |= MOV_TFHD_DURATION_IS_EMPTY;
3418  } else {
3419  flags |= MOV_TFHD_DEFAULT_FLAGS;
3420  }
3422  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3423  if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3424  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3426  }
3427 
3428  /* Don't set a default sample size, the silverlight player refuses
3429  * to play files with that set. Don't set a default sample duration,
3430  * WMP freaks out if it is set. Don't set a base data offset, PIFF
3431  * file format says it MUST NOT be set. */
3432  if (track->mode == MODE_ISM)
3435 
3436  avio_wb32(pb, 0); /* size placeholder */
3437  ffio_wfourcc(pb, "tfhd");
3438  avio_w8(pb, 0); /* version */
3439  avio_wb24(pb, flags);
3440 
3441  avio_wb32(pb, track->track_id); /* track-id */
3442  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3443  avio_wb64(pb, moof_offset);
3444  if (flags & MOV_TFHD_DEFAULT_DURATION) {
3445  track->default_duration = get_cluster_duration(track, 0);
3446  avio_wb32(pb, track->default_duration);
3447  }
3448  if (flags & MOV_TFHD_DEFAULT_SIZE) {
3449  track->default_size = track->entry ? track->cluster[0].size : 1;
3450  avio_wb32(pb, track->default_size);
3451  } else
3452  track->default_size = -1;
3453 
3454  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3455  /* Set the default flags based on the second sample, if available.
3456  * If the first sample is different, that can be signaled via a separate field. */
3457  if (track->entry > 1)
3458  track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3459  else
3460  track->default_sample_flags =
3461  track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3464  avio_wb32(pb, track->default_sample_flags);
3465  }
3466 
3467  return update_size(pb, pos);
3468 }
3469 
3471  MOVTrack *track, int moof_size,
3472  int first, int end)
3473 {
3474  int64_t pos = avio_tell(pb);
3475  uint32_t flags = MOV_TRUN_DATA_OFFSET;
3476  int i;
3477 
3478  for (i = first; i < end; i++) {
3479  if (get_cluster_duration(track, i) != track->default_duration)
3480  flags |= MOV_TRUN_SAMPLE_DURATION;
3481  if (track->cluster[i].size != track->default_size)
3482  flags |= MOV_TRUN_SAMPLE_SIZE;
3483  if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3484  flags |= MOV_TRUN_SAMPLE_FLAGS;
3485  }
3486  if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3487  get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3488  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3489  if (track->flags & MOV_TRACK_CTTS)
3490  flags |= MOV_TRUN_SAMPLE_CTS;
3491 
3492  avio_wb32(pb, 0); /* size placeholder */
3493  ffio_wfourcc(pb, "trun");
3494  avio_w8(pb, 0); /* version */
3495  avio_wb24(pb, flags);
3496 
3497  avio_wb32(pb, end - first); /* sample count */
3498  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3500  !mov->first_trun)
3501  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3502  else
3503  avio_wb32(pb, moof_size + 8 + track->data_offset +
3504  track->cluster[first].pos); /* data offset */
3505  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3506  avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3507 
3508  for (i = first; i < end; i++) {
3509  if (flags & MOV_TRUN_SAMPLE_DURATION)
3510  avio_wb32(pb, get_cluster_duration(track, i));
3511  if (flags & MOV_TRUN_SAMPLE_SIZE)
3512  avio_wb32(pb, track->cluster[i].size);
3513  if (flags & MOV_TRUN_SAMPLE_FLAGS)
3514  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3515  if (flags & MOV_TRUN_SAMPLE_CTS)
3516  avio_wb32(pb, track->cluster[i].cts);
3517  }
3518 
3519  mov->first_trun = 0;
3520  return update_size(pb, pos);
3521 }
3522 
3523 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3524 {
3525  int64_t pos = avio_tell(pb);
3526  static const uint8_t uuid[] = {
3527  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3528  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3529  };
3530 
3531  avio_wb32(pb, 0); /* size placeholder */
3532  ffio_wfourcc(pb, "uuid");
3533  avio_write(pb, uuid, sizeof(uuid));
3534  avio_w8(pb, 1);
3535  avio_wb24(pb, 0);
3536  avio_wb64(pb, track->start_dts + track->frag_start +
3537  track->cluster[0].cts);
3538  avio_wb64(pb, track->end_pts -
3539  (track->cluster[0].dts + track->cluster[0].cts));
3540 
3541  return update_size(pb, pos);
3542 }
3543 
3545  MOVTrack *track, int entry)
3546 {
3547  int n = track->nb_frag_info - 1 - entry, i;
3548  int size = 8 + 16 + 4 + 1 + 16*n;
3549  static const uint8_t uuid[] = {
3550  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3551  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3552  };
3553 
3554  if (entry < 0)
3555  return 0;
3556 
3557  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3558  avio_wb32(pb, size);
3559  ffio_wfourcc(pb, "uuid");
3560  avio_write(pb, uuid, sizeof(uuid));
3561  avio_w8(pb, 1);
3562  avio_wb24(pb, 0);
3563  avio_w8(pb, n);
3564  for (i = 0; i < n; i++) {
3565  int index = entry + 1 + i;
3566  avio_wb64(pb, track->frag_info[index].time);
3567  avio_wb64(pb, track->frag_info[index].duration);
3568  }
3569  if (n < mov->ism_lookahead) {
3570  int free_size = 16 * (mov->ism_lookahead - n);
3571  avio_wb32(pb, free_size);
3572  ffio_wfourcc(pb, "free");
3573  ffio_fill(pb, 0, free_size - 8);
3574  }
3575 
3576  return 0;
3577 }
3578 
3580  MOVTrack *track)
3581 {
3582  int64_t pos = avio_tell(pb);
3583  int i;
3584  for (i = 0; i < mov->ism_lookahead; i++) {
3585  /* Update the tfrf tag for the last ism_lookahead fragments,
3586  * nb_frag_info - 1 is the next fragment to be written. */
3587  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3588  }
3589  avio_seek(pb, pos, SEEK_SET);
3590  return 0;
3591 }
3592 
3593 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3594  int size)
3595 {
3596  int i;
3597  for (i = 0; i < mov->nb_streams; i++) {
3598  MOVTrack *track = &mov->tracks[i];
3599  MOVFragmentInfo *info;
3600  if ((tracks >= 0 && i != tracks) || !track->entry)
3601  continue;
3602  track->nb_frag_info++;
3603  if (track->nb_frag_info >= track->frag_info_capacity) {
3604  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3605  if (av_reallocp_array(&track->frag_info,
3606  new_capacity,
3607  sizeof(*track->frag_info)))
3608  return AVERROR(ENOMEM);
3609  track->frag_info_capacity = new_capacity;
3610  }
3611  info = &track->frag_info[track->nb_frag_info - 1];
3612  info->offset = avio_tell(pb);
3613  info->size = size;
3614  // Try to recreate the original pts for the first packet
3615  // from the fields we have stored
3616  info->time = track->start_dts + track->frag_start +
3617  track->cluster[0].cts;
3618  info->duration = track->end_pts -
3619  (track->cluster[0].dts + track->cluster[0].cts);
3620  // If the pts is less than zero, we will have trimmed
3621  // away parts of the media track using an edit list,
3622  // and the corresponding start presentation time is zero.
3623  if (info->time < 0) {
3624  info->duration += info->time;
3625  info->time = 0;
3626  }
3627  info->tfrf_offset = 0;
3628  mov_write_tfrf_tags(pb, mov, track);
3629  }
3630  return 0;
3631 }
3632 
3633 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3634 {
3635  int64_t pos = avio_tell(pb);
3636 
3637  avio_wb32(pb, 0); /* size */
3638  ffio_wfourcc(pb, "tfdt");
3639  avio_w8(pb, 1); /* version */
3640  avio_wb24(pb, 0);
3641  avio_wb64(pb, track->frag_start);
3642  return update_size(pb, pos);
3643 }
3644 
3646  MOVTrack *track, int64_t moof_offset,
3647  int moof_size)
3648 {
3649  int64_t pos = avio_tell(pb);
3650  int i, start = 0;
3651  avio_wb32(pb, 0); /* size placeholder */
3652  ffio_wfourcc(pb, "traf");
3653 
3654  mov_write_tfhd_tag(pb, mov, track, moof_offset);
3655  if (mov->mode != MODE_ISM)
3656  mov_write_tfdt_tag(pb, track);
3657  for (i = 1; i < track->entry; i++) {
3658  if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3659  mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3660  start = i;
3661  }
3662  }
3663  mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3664  if (mov->mode == MODE_ISM) {
3665  mov_write_tfxd_tag(pb, track);
3666 
3667  if (mov->ism_lookahead) {
3668  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3669 
3670  if (track->nb_frag_info > 0) {
3671  MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3672  if (!info->tfrf_offset)
3673  info->tfrf_offset = avio_tell(pb);
3674  }
3675  avio_wb32(pb, 8 + size);
3676  ffio_wfourcc(pb, "free");
3677  for (i = 0; i < size; i++)
3678  avio_w8(pb, 0);
3679  }
3680  }
3681 
3682  return update_size(pb, pos);
3683 }
3684 
3686  int tracks, int moof_size)
3687 {
3688  int64_t pos = avio_tell(pb);
3689  int i;
3690 
3691  avio_wb32(pb, 0); /* size placeholder */
3692  ffio_wfourcc(pb, "moof");
3693  mov->first_trun = 1;
3694 
3695  mov_write_mfhd_tag(pb, mov);
3696  for (i = 0; i < mov->nb_streams; i++) {
3697  MOVTrack *track = &mov->tracks[i];
3698  if (tracks >= 0 && i != tracks)
3699  continue;
3700  if (!track->entry)
3701  continue;
3702  mov_write_traf_tag(pb, mov, track, pos, moof_size);
3703  }
3704 
3705  return update_size(pb, pos);
3706 }
3707 
3709  MOVTrack *track, int ref_size, int total_sidx_size)
3710 {
3711  int64_t pos = avio_tell(pb), offset_pos, end_pos;
3712  int64_t presentation_time, duration, offset;
3713  int starts_with_SAP, i, entries;
3714 
3715  if (track->entry) {
3716  entries = 1;
3717  presentation_time = track->start_dts + track->frag_start +
3718  track->cluster[0].cts;
3719  duration = track->end_pts -
3720  (track->cluster[0].dts + track->cluster[0].cts);
3721  starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3722 
3723  // pts<0 should be cut away using edts
3724  if (presentation_time < 0) {
3725  duration += presentation_time;
3726  presentation_time = 0;
3727  }
3728  } else {
3729  entries = track->nb_frag_info;
3730  if (entries <= 0)
3731  return 0;
3732  presentation_time = track->frag_info[0].time;
3733  }
3734 
3735  avio_wb32(pb, 0); /* size */
3736  ffio_wfourcc(pb, "sidx");
3737  avio_w8(pb, 1); /* version */
3738  avio_wb24(pb, 0);
3739  avio_wb32(pb, track->track_id); /* reference_ID */
3740  avio_wb32(pb, track->timescale); /* timescale */
3741  avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3742  offset_pos = avio_tell(pb);
3743  avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3744  avio_wb16(pb, 0); /* reserved */
3745 
3746  avio_wb16(pb, entries); /* reference_count */
3747  for (i = 0; i < entries; i++) {
3748  if (!track->entry) {
3749  if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3750  av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3751  }
3752  duration = track->frag_info[i].duration;
3753  ref_size = track->frag_info[i].size;
3754  starts_with_SAP = 1;
3755  }
3756  avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3757  avio_wb32(pb, duration); /* subsegment_duration */
3758  avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3759  }
3760 
3761  end_pos = avio_tell(pb);
3762  offset = pos + total_sidx_size - end_pos;
3763  avio_seek(pb, offset_pos, SEEK_SET);
3764  avio_wb64(pb, offset);
3765  avio_seek(pb, end_pos, SEEK_SET);
3766  return update_size(pb, pos);
3767 }
3768 
3770  int tracks, int ref_size)
3771 {
3772  int i, round, ret;
3773  AVIOContext *avio_buf;
3774  int total_size = 0;
3775  for (round = 0; round < 2; round++) {
3776  // First run one round to calculate the total size of all
3777  // sidx atoms.
3778  // This would be much simpler if we'd only write one sidx
3779  // atom, for the first track in the moof.
3780  if (round == 0) {
3781  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3782  return ret;
3783  } else {
3784  avio_buf = pb;
3785  }
3786  for (i = 0; i < mov->nb_streams; i++) {
3787  MOVTrack *track = &mov->tracks[i];
3788  if (tracks >= 0 && i != tracks)
3789  continue;
3790  // When writing a sidx for the full file, entry is 0, but
3791  // we want to include all tracks. ref_size is 0 in this case,
3792  // since we read it from frag_info instead.
3793  if (!track->entry && ref_size > 0)
3794  continue;
3795  total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3796  total_size);
3797  }
3798  if (round == 0)
3799  total_size = ffio_close_null_buf(avio_buf);
3800  }
3801  return 0;
3802 }
3803 
3804 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3805  int64_t mdat_size)
3806 {
3807  AVIOContext *avio_buf;
3808  int ret, moof_size;
3809 
3810  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3811  return ret;
3812  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3813  moof_size = ffio_close_null_buf(avio_buf);
3814 
3815  if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3816  mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3817 
3818  if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3819  return ret;
3820 
3821  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3822 }
3823 
3824 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3825 {
3826  int64_t pos = avio_tell(pb);
3827  int i;
3828 
3829  avio_wb32(pb, 0); /* size placeholder */
3830  ffio_wfourcc(pb, "tfra");
3831  avio_w8(pb, 1); /* version */
3832  avio_wb24(pb, 0);
3833 
3834  avio_wb32(pb, track->track_id);
3835  avio_wb32(pb, 0); /* length of traf/trun/sample num */
3836  avio_wb32(pb, track->nb_frag_info);
3837  for (i = 0; i < track->nb_frag_info; i++) {
3838  avio_wb64(pb, track->frag_info[i].time);
3839  avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3840  avio_w8(pb, 1); /* traf number */
3841  avio_w8(pb, 1); /* trun number */
3842  avio_w8(pb, 1); /* sample number */
3843  }
3844 
3845  return update_size(pb, pos);
3846 }
3847 
3849 {
3850  int64_t pos = avio_tell(pb);
3851  int i;
3852 
3853  avio_wb32(pb, 0); /* size placeholder */
3854  ffio_wfourcc(pb, "mfra");
3855  /* An empty mfra atom is enough to indicate to the publishing point that
3856  * the stream has ended. */
3857  if (mov->flags & FF_MOV_FLAG_ISML)
3858  return update_size(pb, pos);
3859 
3860  for (i = 0; i < mov->nb_streams; i++) {
3861  MOVTrack *track = &mov->tracks[i];
3862  if (track->nb_frag_info)
3863  mov_write_tfra_tag(pb, track);
3864  }
3865 
3866  avio_wb32(pb, 16);
3867  ffio_wfourcc(pb, "mfro");
3868  avio_wb32(pb, 0); /* version + flags */
3869  avio_wb32(pb, avio_tell(pb) + 4 - pos);
3870 
3871  return update_size(pb, pos);
3872 }
3873 
3875 {
3876  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3877  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3878 
3879  mov->mdat_pos = avio_tell(pb);
3880  avio_wb32(pb, 0); /* size placeholder*/
3881  ffio_wfourcc(pb, "mdat");
3882  return 0;
3883 }
3884 
3885 /* TODO: This needs to be more general */
3887 {
3888  MOVMuxContext *mov = s->priv_data;
3889  int64_t pos = avio_tell(pb);
3890  int has_h264 = 0, has_video = 0;
3891  int minor = 0x200;
3892  int i;
3893 
3894  for (i = 0; i < s->nb_streams; i++) {
3895  AVStream *st = s->streams[i];
3896  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3897  has_video = 1;
3898  if (st->codec->codec_id == AV_CODEC_ID_H264)
3899  has_h264 = 1;
3900  }
3901 
3902  avio_wb32(pb, 0); /* size */
3903  ffio_wfourcc(pb, "ftyp");
3904 
3905  if (mov->major_brand && strlen(mov->major_brand) >= 4)
3906  ffio_wfourcc(pb, mov->major_brand);
3907  else if (mov->mode == MODE_3GP) {
3908  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3909  minor = has_h264 ? 0x100 : 0x200;
3910  } else if (mov->mode & MODE_3G2) {
3911  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3912  minor = has_h264 ? 0x20000 : 0x10000;
3913  } else if (mov->mode == MODE_PSP)
3914  ffio_wfourcc(pb, "MSNV");
3915  else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3916  ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3917  else if (mov->mode == MODE_MP4)
3918  ffio_wfourcc(pb, "isom");
3919  else if (mov->mode == MODE_IPOD)
3920  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3921  else if (mov->mode == MODE_ISM)
3922  ffio_wfourcc(pb, "isml");
3923  else if (mov->mode == MODE_F4V)
3924  ffio_wfourcc(pb, "f4v ");
3925  else
3926  ffio_wfourcc(pb, "qt ");
3927 
3928  avio_wb32(pb, minor);
3929 
3930  if (mov->mode == MODE_MOV)
3931  ffio_wfourcc(pb, "qt ");
3932  else if (mov->mode == MODE_ISM) {
3933  ffio_wfourcc(pb, "piff");
3934  } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3935  ffio_wfourcc(pb, "isom");
3936  ffio_wfourcc(pb, "iso2");
3937  if (has_h264)
3938  ffio_wfourcc(pb, "avc1");
3939  }
3940 
3941  // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3942  // brand. This is compatible with users that don't understand tfdt.
3943  if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3944  ffio_wfourcc(pb, "iso6");
3945 
3946  if (mov->mode == MODE_3GP)
3947  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3948  else if (mov->mode & MODE_3G2)
3949  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3950  else if (mov->mode == MODE_PSP)
3951  ffio_wfourcc(pb, "MSNV");
3952  else if (mov->mode == MODE_MP4)
3953  ffio_wfourcc(pb, "mp41");
3954 
3955  if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3956  ffio_wfourcc(pb, "dash");
3957 
3958  return update_size(pb, pos);
3959 }
3960 
3962 {
3963  AVStream *video_st = s->streams[0];
3964  AVCodecContext *video_codec = s->streams[0]->codec;
3965  AVCodecContext *audio_codec = s->streams[1]->codec;
3966  int audio_rate = audio_codec->sample_rate;
3967  // TODO: should be avg_frame_rate
3968  int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3969  int audio_kbitrate = audio_codec->bit_rate / 1000;
3970  int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3971 
3972  avio_wb32(pb, 0x94); /* size */
3973  ffio_wfourcc(pb, "uuid");
3974  ffio_wfourcc(pb, "PROF");
3975 
3976  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3977  avio_wb32(pb, 0xbb88695c);
3978  avio_wb32(pb, 0xfac9c740);
3979 
3980  avio_wb32(pb, 0x0); /* ? */
3981  avio_wb32(pb, 0x3); /* 3 sections ? */
3982 
3983  avio_wb32(pb, 0x14); /* size */
3984  ffio_wfourcc(pb, "FPRF");
3985  avio_wb32(pb, 0x0); /* ? */
3986  avio_wb32(pb, 0x0); /* ? */
3987  avio_wb32(pb, 0x0); /* ? */
3988 
3989  avio_wb32(pb, 0x2c); /* size */
3990  ffio_wfourcc(pb, "APRF"); /* audio */
3991  avio_wb32(pb, 0x0);
3992  avio_wb32(pb, 0x2); /* TrackID */
3993  ffio_wfourcc(pb, "mp4a");
3994  avio_wb32(pb, 0x20f);
3995  avio_wb32(pb, 0x0);
3996  avio_wb32(pb, audio_kbitrate);
3997  avio_wb32(pb, audio_kbitrate);
3998  avio_wb32(pb, audio_rate);
3999  avio_wb32(pb, audio_codec->channels);
4000 
4001  avio_wb32(pb, 0x34); /* size */
4002  ffio_wfourcc(pb, "VPRF"); /* video */
4003  avio_wb32(pb, 0x0);
4004  avio_wb32(pb, 0x1); /* TrackID */
4005  if (video_codec->codec_id == AV_CODEC_ID_H264) {
4006  ffio_wfourcc(pb, "avc1");
4007  avio_wb16(pb, 0x014D);
4008  avio_wb16(pb, 0x0015);
4009  } else {
4010  ffio_wfourcc(pb, "mp4v");
4011  avio_wb16(pb, 0x0000);
4012  avio_wb16(pb, 0x0103);
4013  }
4014  avio_wb32(pb, 0x0);
4015  avio_wb32(pb, video_kbitrate);
4016  avio_wb32(pb, video_kbitrate);
4017  avio_wb32(pb, frame_rate);
4018  avio_wb32(pb, frame_rate);
4019  avio_wb16(pb, video_codec->width);
4020  avio_wb16(pb, video_codec->height);
4021  avio_wb32(pb, 0x010001); /* ? */
4022 }
4023 
4025 {
4026  MOVMuxContext *mov = s->priv_data;
4027  int i;
4028 
4029  mov_write_ftyp_tag(pb,s);
4030  if (mov->mode == MODE_PSP) {
4031  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4032  for (i = 0; i < s->nb_streams; i++) {
4033  AVStream *st = s->streams[i];
4034  if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4035  video_streams_nb++;
4036  else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4037  audio_streams_nb++;
4038  else
4039  other_streams_nb++;
4040  }
4041 
4042  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4043  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4044  return AVERROR(EINVAL);
4045  }
4046  mov_write_uuidprof_tag(pb, s);
4047  }
4048  return 0;
4049 }
4050 
4051 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4052 {
4053  uint32_t c = -1;
4054  int i, closed_gop = 0;
4055 
4056  for (i = 0; i < pkt->size - 4; i++) {
4057  c = (c << 8) + pkt->data[i];
4058  if (c == 0x1b8) { // gop
4059  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4060  } else if (c == 0x100) { // pic
4061  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4062  if (!temp_ref || closed_gop) // I picture is not reordered
4063  *flags = MOV_SYNC_SAMPLE;
4064  else
4065  *flags = MOV_PARTIAL_SYNC_SAMPLE;
4066  break;
4067  }
4068  }
4069  return 0;
4070 }
4071 
4072 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4073 {
4074  const uint8_t *start, *next, *end = pkt->data + pkt->size;
4075  int seq = 0, entry = 0;
4076  int key = pkt->flags & AV_PKT_FLAG_KEY;
4077  start = find_next_marker(pkt->data, end);
4078  for (next = start; next < end; start = next) {
4079  next = find_next_marker(start + 4, end);
4080  switch (AV_RB32(start)) {
4081  case VC1_CODE_SEQHDR:
4082  seq = 1;
4083  break;
4084  case VC1_CODE_ENTRYPOINT:
4085  entry = 1;
4086  break;
4087  case VC1_CODE_SLICE:
4088  trk->vc1_info.slices = 1;
4089  break;
4090  }
4091  }
4092  if (!trk->entry && trk->vc1_info.first_packet_seen)
4093  trk->vc1_info.first_frag_written = 1;
4094  if (!trk->entry && !trk->vc1_info.first_frag_written) {
4095  /* First packet in first fragment */
4096  trk->vc1_info.first_packet_seq = seq;
4097  trk->vc1_info.first_packet_entry = entry;
4098  trk->vc1_info.first_packet_seen = 1;
4099  } else if ((seq && !trk->vc1_info.packet_seq) ||
4100  (entry && !trk->vc1_info.packet_entry)) {
4101  int i;
4102  for (i = 0; i < trk->entry; i++)
4103  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4104  trk->has_keyframes = 0;
4105  if (seq)
4106  trk->vc1_info.packet_seq = 1;
4107  if (entry)
4108  trk->vc1_info.packet_entry = 1;
4109  if (!trk->vc1_info.first_frag_written) {
4110  /* First fragment */
4111  if ((!seq || trk->vc1_info.first_packet_seq) &&
4112  (!entry || trk->vc1_info.first_packet_entry)) {
4113  /* First packet had the same headers as this one, readd the
4114  * sync sample flag. */
4115  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4116  trk->has_keyframes = 1;
4117  }
4118  }
4119  }
4120  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4121  key = seq && entry;
4122  else if (trk->vc1_info.packet_seq)
4123  key = seq;
4124  else if (trk->vc1_info.packet_entry)
4125  key = entry;
4126  if (key) {
4127  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4128  trk->has_keyframes++;
4129  }
4130 }
4131 
4133 {
4134  MOVMuxContext *mov = s->priv_data;
4135  int ret, buf_size;
4136  uint8_t *buf;
4137  int i, offset;
4138 
4139  if (!track->mdat_buf)
4140  return 0;
4141  if (!mov->mdat_buf) {
4142  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4143  return ret;
4144  }
4145  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4146  track->mdat_buf = NULL;
4147 
4148  offset = avio_tell(mov->mdat_buf);
4149  avio_write(mov->mdat_buf, buf, buf_size);
4150  av_free(buf);
4151 
4152  for (i = track->entries_flushed; i < track->entry; i++)
4153  track->cluster[i].pos += offset;
4154  track->entries_flushed = track->entry;
4155  return 0;
4156 }
4157 
4158 static int mov_flush_fragment(AVFormatContext *s, int force)
4159 {
4160  MOVMuxContext *mov = s->priv_data;
4161  int i, first_track = -1;
4162  int64_t mdat_size = 0;
4163  int ret;
4164 
4165  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4166  return 0;
4167 
4168  for (i = 0; i < mov->nb_streams; i++) {
4169  MOVTrack *track = &mov->tracks[i];
4170  if (track->entry <= 1)
4171  continue;
4172  // Sample durations are calculated as the diff of dts values,
4173  // but for the last sample in a fragment, we don't know the dts
4174  // of the first sample in the next fragment, so we have to rely
4175  // on what was set as duration in the AVPacket. Not all callers
4176  // set this though, so we might want to replace it with an
4177  // estimate if it currently is zero.
4178  if (get_cluster_duration(track, track->entry - 1) != 0)
4179  continue;
4180  // Use the duration (i.e. dts diff) of the second last sample for
4181  // the last one. This is a wild guess (and fatal if it turns out
4182  // to be too long), but probably the best we can do - having a zero
4183  // duration is bad as well.
4184  track->track_duration += get_cluster_duration(track, track->entry - 2);
4185  track->end_pts += get_cluster_duration(track, track->entry - 2);
4186  if (!mov->missing_duration_warned) {
4188  "Estimating the duration of the last packet in a "
4189  "fragment, consider setting the duration field in "
4190  "AVPacket instead.\n");
4191  mov->missing_duration_warned = 1;
4192  }
4193  }
4194 
4195  if (!mov->moov_written) {
4196  int64_t pos = avio_tell(s->pb);
4197  uint8_t *buf;
4198  int buf_size, moov_size;
4199 
4200  for (i = 0; i < mov->nb_streams; i++)
4201  if (!mov->tracks[i].entry)
4202  break;
4203  /* Don't write the initial moov unless all tracks have data */
4204  if (i < mov->nb_streams && !force)
4205  return 0;
4206 
4207  moov_size = get_moov_size(s);
4208  for (i = 0; i < mov->nb_streams; i++)
4209  mov->tracks[i].data_offset = pos + moov_size + 8;
4210 
4213  if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4214  return ret;
4215 
4216  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4217  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4218  mov->reserved_header_pos = avio_tell(s->pb);
4219  avio_flush(s->pb);
4220  mov->moov_written = 1;
4221  return 0;
4222  }
4223 
4224  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4225  mov->mdat_buf = NULL;
4226  avio_wb32(s->pb, buf_size + 8);
4227  ffio_wfourcc(s->pb, "mdat");
4228  avio_write(s->pb, buf, buf_size);
4229  av_free(buf);
4230 
4231  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4232  mov->reserved_header_pos = avio_tell(s->pb);
4233 
4234  mov->moov_written = 1;
4235  mov->mdat_size = 0;
4236  for (i = 0; i < mov->nb_streams; i++) {
4237  if (mov->tracks[i].entry)
4238  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4239  mov->tracks[i].track_duration -
4240  mov->tracks[i].cluster[0].dts;
4241  mov->tracks[i].entry = 0;
4242  }
4243  avio_flush(s->pb);
4244  return 0;
4245  }
4246 
4247  if (mov->frag_interleave) {
4248  for (i = 0; i < mov->nb_streams; i++) {
4249  MOVTrack *track = &mov->tracks[i];
4250  int ret;
4251  if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4252  return ret;
4253  }
4254 
4255  if (!mov->mdat_buf)
4256  return 0;
4257  mdat_size = avio_tell(mov->mdat_buf);
4258  }
4259 
4260  for (i = 0; i < mov->nb_streams; i++) {
4261  MOVTrack *track = &mov->tracks[i];
4262  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4263  track->data_offset = 0;
4264  else
4265  track->data_offset = mdat_size;
4266  if (!track->entry)
4267  continue;
4268  if (track->mdat_buf)
4269  mdat_size += avio_tell(track->mdat_buf);
4270  if (first_track < 0)
4271  first_track = i;
4272  }
4273 
4274  if (!mdat_size)
4275  return 0;
4276 
4277  for (i = 0; i < mov->nb_streams; i++) {
4278  MOVTrack *track = &mov->tracks[i];
4279  int buf_size, write_moof = 1, moof_tracks = -1;
4280  uint8_t *buf;
4281  int64_t duration = 0;
4282 
4283  if (track->entry)
4284  duration = track->start_dts + track->track_duration -
4285  track->cluster[0].dts;
4286  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4287  if (!track->mdat_buf)
4288  continue;
4289  mdat_size = avio_tell(track->mdat_buf);
4290  moof_tracks = i;
4291  } else {
4292  write_moof = i == first_track;
4293  }
4294 
4295  if (write_moof) {
4296  avio_flush(s->pb);
4297 
4298  mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4299  mov->fragments++;
4300 
4301  avio_wb32(s->pb, mdat_size + 8);
4302  ffio_wfourcc(s->pb, "mdat");
4303  }
4304 
4305  if (track->entry)
4306  track->frag_start += duration;
4307  track->entry = 0;
4308  track->entries_flushed = 0;
4309  if (!mov->frag_interleave) {
4310  if (!track->mdat_buf)
4311  continue;
4312  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4313  track->mdat_buf = NULL;
4314  } else {
4315  if (!mov->mdat_buf)
4316  continue;
4317  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4318  mov->mdat_buf = NULL;
4319  }
4320 
4321  avio_write(s->pb, buf, buf_size);
4322  av_free(buf);
4323  }
4324 
4325  mov->mdat_size = 0;
4326 
4327  avio_flush(s->pb);
4328  return 0;
4329 }
4330 
4332 {
4333  MOVMuxContext *mov = s->priv_data;
4334  int had_moov = mov->moov_written;
4335  int ret = mov_flush_fragment(s, force);
4336  if (ret < 0)
4337  return ret;
4338  // If using delay_moov, the first flush only wrote the moov,
4339  // not the actual moof+mdat pair, thus flush once again.
4340  if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4341  ret = mov_flush_fragment(s, force);
4342  return ret;
4343 }
4344 
4346 {
4347  MOVMuxContext *mov = s->priv_data;
4348  AVIOContext *pb = s->pb;
4349  MOVTrack *trk = &mov->tracks[pkt->stream_index];
4350  AVCodecContext *enc = trk->enc;
4351  unsigned int samples_in_chunk = 0;
4352  int size = pkt->size, ret = 0;
4353  uint8_t *reformatted_data = NULL;
4354 
4355  if (trk->entry) {
4356  int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4357  if (duration < 0 || duration > INT_MAX) {
4358  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4359  duration, pkt->dts
4360  );
4361 
4362  pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4363  pkt->pts = AV_NOPTS_VALUE;
4364  }
4365  }
4366  if (pkt->duration < 0 || pkt->duration > INT_MAX) {
4367  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
4368  return AVERROR(EINVAL);
4369  }
4370  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4371  int ret;
4372  if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4373  if (mov->frag_interleave && mov->fragments > 0) {
4374  if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4375  if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4376  return ret;
4377  }
4378  }
4379 
4380  if (!trk->mdat_buf) {
4381  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4382  return ret;
4383  }
4384  pb = trk->mdat_buf;
4385  } else {
4386  if (!mov->mdat_buf) {
4387  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4388  return ret;
4389  }
4390  pb = mov->mdat_buf;
4391  }
4392  }
4393 
4394  if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4395  /* We must find out how many AMR blocks there are in one packet */
4396  static const uint16_t packed_size[16] =
4397  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4398  int len = 0;
4399 
4400  while (len < size && samples_in_chunk < 100) {
4401  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4402  samples_in_chunk++;
4403  }
4404  if (samples_in_chunk > 1) {
4405  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4406  return -1;
4407  }
4408  } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4410  samples_in_chunk = enc->frame_size;
4411  } else if (trk->sample_size)
4412  samples_in_chunk = size / trk->sample_size;
4413  else
4414  samples_in_chunk = 1;
4415 
4416  /* copy extradata if it exists */
4417  if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4418  !TAG_IS_AVCI(trk->tag) &&
4419  (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4420  trk->vos_len = enc->extradata_size;
4421  trk->vos_data = av_malloc(trk->vos_len);
4422  if (!trk->vos_data) {
4423  ret = AVERROR(ENOMEM);
4424  goto err;
4425  }
4426  memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4427  }
4428 
4429  if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4430  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4431  if (!s->streams[pkt->stream_index]->nb_frames) {
4432  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4433  "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4434  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4435  return -1;
4436  }
4437  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");