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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/dnxhddata.h"
36 #include "libavcodec/flac.h"
37 #include "libavcodec/get_bits.h"
38 
39 #include "libavcodec/internal.h"
40 #include "libavcodec/put_bits.h"
41 #include "libavcodec/vc1_common.h"
42 #include "libavcodec/raw.h"
43 #include "internal.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/intfloat.h"
46 #include "libavutil/mathematics.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/opt.h"
49 #include "libavutil/dict.h"
50 #include "libavutil/pixdesc.h"
51 #include "libavutil/stereo3d.h"
52 #include "libavutil/timecode.h"
53 #include "libavutil/color_utils.h"
54 #include "hevc.h"
55 #include "rtpenc.h"
56 #include "mov_chan.h"
57 #include "vpcc.h"
58 
59 static const AVOption options[] = {
60  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61  { "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" },
62  { "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 },
63  { "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" },
64  { "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" },
65  { "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" },
66  { "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" },
67  { "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" },
68  { "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" },
69  { "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" },
70  { "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" },
71  { "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" },
72  { "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" },
73  { "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" },
74  { "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" },
75  { "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" },
76  { "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" },
77  { "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" },
78  { "use_metadata_tags", "Use mdta atom for metadata.", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_USE_MDTA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
79  { "skip_trailer", "Skip writing the mfra/tfra/mfro trailer for fragmented files", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_TRAILER}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
80  { "negative_cts_offsets", "Use negative CTS offsets (reducing the need for edit lists)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
81  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
82  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
83  { "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},
84  { "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},
85  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
86  { "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},
87  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
88  { "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},
89  { "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},
90  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
91  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
92  { "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},
93  { "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},
94  { "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 },
95  { "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 },
96  { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
97  { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
98  { "use_stream_ids_as_track_ids", "use stream ids as track ids", offsetof(MOVMuxContext, use_stream_ids_as_track_ids), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
99  { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
100  { NULL },
101 };
102 
103 #define MOV_CLASS(flavor)\
104 static const AVClass flavor ## _muxer_class = {\
105  .class_name = #flavor " muxer",\
106  .item_name = av_default_item_name,\
107  .option = options,\
108  .version = LIBAVUTIL_VERSION_INT,\
109 };
110 
111 static int get_moov_size(AVFormatContext *s);
112 
113 static int utf8len(const uint8_t *b)
114 {
115  int len = 0;
116  int val;
117  while (*b) {
118  GET_UTF8(val, *b++, return -1;)
119  len++;
120  }
121  return len;
122 }
123 
124 //FIXME support 64 bit variant with wide placeholders
125 static int64_t update_size(AVIOContext *pb, int64_t pos)
126 {
127  int64_t curpos = avio_tell(pb);
128  avio_seek(pb, pos, SEEK_SET);
129  avio_wb32(pb, curpos - pos); /* rewrite size */
130  avio_seek(pb, curpos, SEEK_SET);
131 
132  return curpos - pos;
133 }
134 
135 static int co64_required(const MOVTrack *track)
136 {
137  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
138  return 1;
139  return 0;
140 }
141 
142 /* Chunk offset atom */
143 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
144 {
145  int i;
146  int mode64 = co64_required(track); // use 32 bit size variant if possible
147  int64_t pos = avio_tell(pb);
148  avio_wb32(pb, 0); /* size */
149  if (mode64)
150  ffio_wfourcc(pb, "co64");
151  else
152  ffio_wfourcc(pb, "stco");
153  avio_wb32(pb, 0); /* version & flags */
154  avio_wb32(pb, track->chunkCount); /* entry count */
155  for (i = 0; i < track->entry; i++) {
156  if (!track->cluster[i].chunkNum)
157  continue;
158  if (mode64 == 1)
159  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
160  else
161  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
162  }
163  return update_size(pb, pos);
164 }
165 
166 /* Sample size atom */
167 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
168 {
169  int equalChunks = 1;
170  int i, j, entries = 0, tst = -1, oldtst = -1;
171 
172  int64_t pos = avio_tell(pb);
173  avio_wb32(pb, 0); /* size */
174  ffio_wfourcc(pb, "stsz");
175  avio_wb32(pb, 0); /* version & flags */
176 
177  for (i = 0; i < track->entry; i++) {
178  tst = track->cluster[i].size / track->cluster[i].entries;
179  if (oldtst != -1 && tst != oldtst)
180  equalChunks = 0;
181  oldtst = tst;
182  entries += track->cluster[i].entries;
183  }
184  if (equalChunks && track->entry) {
185  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
186  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
187  avio_wb32(pb, sSize); // sample size
188  avio_wb32(pb, entries); // sample count
189  } else {
190  avio_wb32(pb, 0); // sample size
191  avio_wb32(pb, entries); // sample count
192  for (i = 0; i < track->entry; i++) {
193  for (j = 0; j < track->cluster[i].entries; j++) {
194  avio_wb32(pb, track->cluster[i].size /
195  track->cluster[i].entries);
196  }
197  }
198  }
199  return update_size(pb, pos);
200 }
201 
202 /* Sample to chunk atom */
203 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
204 {
205  int index = 0, oldval = -1, i;
206  int64_t entryPos, curpos;
207 
208  int64_t pos = avio_tell(pb);
209  avio_wb32(pb, 0); /* size */
210  ffio_wfourcc(pb, "stsc");
211  avio_wb32(pb, 0); // version & flags
212  entryPos = avio_tell(pb);
213  avio_wb32(pb, track->chunkCount); // entry count
214  for (i = 0; i < track->entry; i++) {
215  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
216  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
217  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
218  avio_wb32(pb, 0x1); // sample description index
219  oldval = track->cluster[i].samples_in_chunk;
220  index++;
221  }
222  }
223  curpos = avio_tell(pb);
224  avio_seek(pb, entryPos, SEEK_SET);
225  avio_wb32(pb, index); // rewrite size
226  avio_seek(pb, curpos, SEEK_SET);
227 
228  return update_size(pb, pos);
229 }
230 
231 /* Sync sample atom */
232 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
233 {
234  int64_t curpos, entryPos;
235  int i, index = 0;
236  int64_t pos = avio_tell(pb);
237  avio_wb32(pb, 0); // size
238  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
239  avio_wb32(pb, 0); // version & flags
240  entryPos = avio_tell(pb);
241  avio_wb32(pb, track->entry); // entry count
242  for (i = 0; i < track->entry; i++) {
243  if (track->cluster[i].flags & flag) {
244  avio_wb32(pb, i + 1);
245  index++;
246  }
247  }
248  curpos = avio_tell(pb);
249  avio_seek(pb, entryPos, SEEK_SET);
250  avio_wb32(pb, index); // rewrite size
251  avio_seek(pb, curpos, SEEK_SET);
252  return update_size(pb, pos);
253 }
254 
255 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
256 {
257  avio_wb32(pb, 0x11); /* size */
258  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
259  else ffio_wfourcc(pb, "damr");
260  ffio_wfourcc(pb, "FFMP");
261  avio_w8(pb, 0); /* decoder version */
262 
263  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
264  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
265  avio_w8(pb, 0x01); /* Frames per sample */
266  return 0x11;
267 }
268 
269 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
270 {
271  GetBitContext gbc;
272  PutBitContext pbc;
273  uint8_t buf[3];
274  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
275 
276  if (track->vos_len < 7)
277  return -1;
278 
279  avio_wb32(pb, 11);
280  ffio_wfourcc(pb, "dac3");
281 
282  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
283  fscod = get_bits(&gbc, 2);
284  frmsizecod = get_bits(&gbc, 6);
285  bsid = get_bits(&gbc, 5);
286  bsmod = get_bits(&gbc, 3);
287  acmod = get_bits(&gbc, 3);
288  if (acmod == 2) {
289  skip_bits(&gbc, 2); // dsurmod
290  } else {
291  if ((acmod & 1) && acmod != 1)
292  skip_bits(&gbc, 2); // cmixlev
293  if (acmod & 4)
294  skip_bits(&gbc, 2); // surmixlev
295  }
296  lfeon = get_bits1(&gbc);
297 
298  init_put_bits(&pbc, buf, sizeof(buf));
299  put_bits(&pbc, 2, fscod);
300  put_bits(&pbc, 5, bsid);
301  put_bits(&pbc, 3, bsmod);
302  put_bits(&pbc, 3, acmod);
303  put_bits(&pbc, 1, lfeon);
304  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
305  put_bits(&pbc, 5, 0); // reserved
306 
307  flush_put_bits(&pbc);
308  avio_write(pb, buf, sizeof(buf));
309 
310  return 11;
311 }
312 
313 struct eac3_info {
314  AVPacket pkt;
315  uint8_t ec3_done;
316  uint8_t num_blocks;
317 
318  /* Layout of the EC3SpecificBox */
319  /* maximum bitrate */
320  uint16_t data_rate;
321  /* number of independent substreams */
322  uint8_t num_ind_sub;
323  struct {
324  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
325  uint8_t fscod;
326  /* bit stream identification 5 bits */
327  uint8_t bsid;
328  /* one bit reserved */
329  /* audio service mixing (not supported yet) 1 bit */
330  /* bit stream mode 3 bits */
331  uint8_t bsmod;
332  /* audio coding mode 3 bits */
333  uint8_t acmod;
334  /* sub woofer on 1 bit */
335  uint8_t lfeon;
336  /* 3 bits reserved */
337  /* number of dependent substreams associated with this substream 4 bits */
338  uint8_t num_dep_sub;
339  /* channel locations of the dependent substream(s), if any, 9 bits */
340  uint16_t chan_loc;
341  /* if there is no dependent substream, then one bit reserved instead */
342  } substream[1]; /* TODO: support 8 independent substreams */
343 };
344 
345 #if CONFIG_AC3_PARSER
346 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
347 {
348  GetBitContext gbc;
349  AC3HeaderInfo tmp, *hdr = &tmp;
350  struct eac3_info *info;
351  int num_blocks;
352 
353  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
354  return AVERROR(ENOMEM);
355  info = track->eac3_priv;
356 
357  init_get_bits(&gbc, pkt->data, pkt->size * 8);
358  if (avpriv_ac3_parse_header(&gbc, &hdr) < 0) {
359  /* drop the packets until we see a good one */
360  if (!track->entry) {
361  av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
362  return 0;
363  }
364  return AVERROR_INVALIDDATA;
365  }
366 
367  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
368  num_blocks = hdr->num_blocks;
369 
370  if (!info->ec3_done) {
371  /* AC-3 substream must be the first one */
372  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
373  return AVERROR(EINVAL);
374 
375  /* this should always be the case, given that our AC-3 parser
376  * concatenates dependent frames to their independent parent */
377  if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
378  /* substream ids must be incremental */
379  if (hdr->substreamid > info->num_ind_sub + 1)
380  return AVERROR(EINVAL);
381 
382  if (hdr->substreamid == info->num_ind_sub + 1) {
383  //info->num_ind_sub++;
384  avpriv_request_sample(track->par, "Multiple independent substreams");
385  return AVERROR_PATCHWELCOME;
386  } else if (hdr->substreamid < info->num_ind_sub ||
387  hdr->substreamid == 0 && info->substream[0].bsid) {
388  info->ec3_done = 1;
389  goto concatenate;
390  }
391  }
392 
393  /* fill the info needed for the "dec3" atom */
394  info->substream[hdr->substreamid].fscod = hdr->sr_code;
395  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
396  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
397  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
398  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
399 
400  /* Parse dependent substream(s), if any */
401  if (pkt->size != hdr->frame_size) {
402  int cumul_size = hdr->frame_size;
403  int parent = hdr->substreamid;
404 
405  while (cumul_size != pkt->size) {
406  int i;
407  init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
408  if (avpriv_ac3_parse_header(&gbc, &hdr) < 0)
409  return AVERROR_INVALIDDATA;
410  if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
411  return AVERROR(EINVAL);
412  cumul_size += hdr->frame_size;
413  info->substream[parent].num_dep_sub++;
414 
415  /* header is parsed up to lfeon, but custom channel map may be needed */
416  /* skip bsid */
417  skip_bits(&gbc, 5);
418  /* skip volume control params */
419  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
420  skip_bits(&gbc, 5); // skip dialog normalization
421  if (get_bits1(&gbc)) {
422  skip_bits(&gbc, 8); // skip compression gain word
423  }
424  }
425  /* get the dependent stream channel map, if exists */
426  if (get_bits1(&gbc))
427  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
428  else
429  info->substream[parent].chan_loc |= hdr->channel_mode;
430  }
431  }
432  }
433 
434 concatenate:
435  if (!info->num_blocks && num_blocks == 6)
436  return pkt->size;
437  else if (info->num_blocks + num_blocks > 6)
438  return AVERROR_INVALIDDATA;
439 
440  if (!info->num_blocks) {
441  int ret = av_packet_ref(&info->pkt, pkt);
442  if (ret < 0)
443  return ret;
444  info->num_blocks = num_blocks;
445  return 0;
446  } else {
447  int ret;
448  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
449  return ret;
450  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
451  info->num_blocks += num_blocks;
452  info->pkt.duration += pkt->duration;
453  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
454  return ret;
455  if (info->num_blocks != 6)
456  return 0;
457  av_packet_unref(pkt);
458  ret = av_packet_ref(pkt, &info->pkt);
459  if (ret < 0)
460  return ret;
461  av_packet_unref(&info->pkt);
462  info->num_blocks = 0;
463  }
464 
465  return pkt->size;
466 }
467 #endif
468 
469 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
470 {
471  PutBitContext pbc;
472  uint8_t *buf;
473  struct eac3_info *info;
474  int size, i;
475 
476  if (!track->eac3_priv)
477  return AVERROR(EINVAL);
478 
479  info = track->eac3_priv;
480  size = 2 + 4 * (info->num_ind_sub + 1);
481  buf = av_malloc(size);
482  if (!buf) {
483  size = AVERROR(ENOMEM);
484  goto end;
485  }
486 
487  init_put_bits(&pbc, buf, size);
488  put_bits(&pbc, 13, info->data_rate);
489  put_bits(&pbc, 3, info->num_ind_sub);
490  for (i = 0; i <= info->num_ind_sub; i++) {
491  put_bits(&pbc, 2, info->substream[i].fscod);
492  put_bits(&pbc, 5, info->substream[i].bsid);
493  put_bits(&pbc, 1, 0); /* reserved */
494  put_bits(&pbc, 1, 0); /* asvc */
495  put_bits(&pbc, 3, info->substream[i].bsmod);
496  put_bits(&pbc, 3, info->substream[i].acmod);
497  put_bits(&pbc, 1, info->substream[i].lfeon);
498  put_bits(&pbc, 5, 0); /* reserved */
499  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
500  if (!info->substream[i].num_dep_sub) {
501  put_bits(&pbc, 1, 0); /* reserved */
502  size--;
503  } else {
504  put_bits(&pbc, 9, info->substream[i].chan_loc);
505  }
506  }
507  flush_put_bits(&pbc);
508 
509  avio_wb32(pb, size + 8);
510  ffio_wfourcc(pb, "dec3");
511  avio_write(pb, buf, size);
512 
513  av_free(buf);
514 
515 end:
516  av_packet_unref(&info->pkt);
517  av_freep(&track->eac3_priv);
518 
519  return size;
520 }
521 
522 /**
523  * This function writes extradata "as is".
524  * Extradata must be formatted like a valid atom (with size and tag).
525  */
526 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
527 {
528  avio_write(pb, track->par->extradata, track->par->extradata_size);
529  return track->par->extradata_size;
530 }
531 
532 static int mov_write_enda_tag(AVIOContext *pb)
533 {
534  avio_wb32(pb, 10);
535  ffio_wfourcc(pb, "enda");
536  avio_wb16(pb, 1); /* little endian */
537  return 10;
538 }
539 
540 static int mov_write_enda_tag_be(AVIOContext *pb)
541 {
542  avio_wb32(pb, 10);
543  ffio_wfourcc(pb, "enda");
544  avio_wb16(pb, 0); /* big endian */
545  return 10;
546 }
547 
548 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
549 {
550  int i = 3;
551  avio_w8(pb, tag);
552  for (; i > 0; i--)
553  avio_w8(pb, (size >> (7 * i)) | 0x80);
554  avio_w8(pb, size & 0x7F);
555 }
556 
557 static unsigned compute_avg_bitrate(MOVTrack *track)
558 {
559  uint64_t size = 0;
560  int i;
561  if (!track->track_duration)
562  return 0;
563  for (i = 0; i < track->entry; i++)
564  size += track->cluster[i].size;
565  return size * 8 * track->timescale / track->track_duration;
566 }
567 
568 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
569 {
570  AVCPBProperties *props;
571  int64_t pos = avio_tell(pb);
572  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
573  unsigned avg_bitrate;
574 
575  avio_wb32(pb, 0); // size
576  ffio_wfourcc(pb, "esds");
577  avio_wb32(pb, 0); // Version
578 
579  // ES descriptor
580  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
581  avio_wb16(pb, track->track_id);
582  avio_w8(pb, 0x00); // flags (= no flags)
583 
584  // DecoderConfig descriptor
585  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
586 
587  // Object type indication
588  if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
589  track->par->codec_id == AV_CODEC_ID_MP3) &&
590  track->par->sample_rate > 24000)
591  avio_w8(pb, 0x6B); // 11172-3
592  else
593  avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
594 
595  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
596  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
597  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
598  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
599  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
600  avio_w8(pb, 0x15); // flags (= Audiostream)
601  else
602  avio_w8(pb, 0x11); // flags (= Visualstream)
603 
604  props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
605  NULL);
606 
607  avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
608 
609  avg_bitrate = compute_avg_bitrate(track);
610  avio_wb32(pb, props ? FFMAX3(props->max_bitrate, props->avg_bitrate, avg_bitrate) : FFMAX(track->par->bit_rate, avg_bitrate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
611  avio_wb32(pb, avg_bitrate);
612 
613  if (track->vos_len) {
614  // DecoderSpecific info descriptor
615  put_descr(pb, 0x05, track->vos_len);
616  avio_write(pb, track->vos_data, track->vos_len);
617  }
618 
619  // SL descriptor
620  put_descr(pb, 0x06, 1);
621  avio_w8(pb, 0x02);
622  return update_size(pb, pos);
623 }
624 
625 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
626 {
627  return codec_id == AV_CODEC_ID_PCM_S24LE ||
628  codec_id == AV_CODEC_ID_PCM_S32LE ||
629  codec_id == AV_CODEC_ID_PCM_F32LE ||
630  codec_id == AV_CODEC_ID_PCM_F64LE;
631 }
632 
633 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
634 {
635  return codec_id == AV_CODEC_ID_PCM_S24BE ||
636  codec_id == AV_CODEC_ID_PCM_S32BE ||
637  codec_id == AV_CODEC_ID_PCM_F32BE ||
638  codec_id == AV_CODEC_ID_PCM_F64BE;
639 }
640 
641 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
642 {
643  int ret;
644  int64_t pos = avio_tell(pb);
645  avio_wb32(pb, 0);
646  avio_wl32(pb, track->tag); // store it byteswapped
647  track->par->codec_tag = av_bswap16(track->tag >> 16);
648  if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
649  return ret;
650  return update_size(pb, pos);
651 }
652 
653 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
654 {
655  int ret;
656  int64_t pos = avio_tell(pb);
657  avio_wb32(pb, 0);
658  ffio_wfourcc(pb, "wfex");
659  if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
660  return ret;
661  return update_size(pb, pos);
662 }
663 
664 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
665 {
666  int64_t pos = avio_tell(pb);
667  avio_wb32(pb, 0);
668  ffio_wfourcc(pb, "dfLa");
669  avio_w8(pb, 0); /* version */
670  avio_wb24(pb, 0); /* flags */
671 
672  /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
673  if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
674  return AVERROR_INVALIDDATA;
675 
676  /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
677  avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
678  avio_wb24(pb, track->par->extradata_size); /* Length */
679  avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
680 
681  return update_size(pb, pos);
682 }
683 
684 static int mov_write_dops_tag(AVIOContext *pb, MOVTrack *track)
685 {
686  int64_t pos = avio_tell(pb);
687  avio_wb32(pb, 0);
688  ffio_wfourcc(pb, "dOps");
689  avio_w8(pb, 0); /* Version */
690  if (track->par->extradata_size < 19) {
691  av_log(pb, AV_LOG_ERROR, "invalid extradata size\n");
692  return AVERROR_INVALIDDATA;
693  }
694  /* extradata contains an Ogg OpusHead, other than byte-ordering and
695  OpusHead's preceeding magic/version, OpusSpecificBox is currently
696  identical. */
697  avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
698  avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
699  avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
700  avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
701  /* Write the rest of the header out without byte-swapping. */
702  avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 18);
703 
704  return update_size(pb, pos);
705 }
706 
707 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
708 {
709  uint32_t layout_tag, bitmap;
710  int64_t pos = avio_tell(pb);
711 
712  layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
713  track->par->channel_layout,
714  &bitmap);
715  if (!layout_tag) {
716  av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
717  "lack of channel information\n");
718  return 0;
719  }
720 
721  if (track->multichannel_as_mono)
722  return 0;
723 
724  avio_wb32(pb, 0); // Size
725  ffio_wfourcc(pb, "chan"); // Type
726  avio_w8(pb, 0); // Version
727  avio_wb24(pb, 0); // Flags
728  avio_wb32(pb, layout_tag); // mChannelLayoutTag
729  avio_wb32(pb, bitmap); // mChannelBitmap
730  avio_wb32(pb, 0); // mNumberChannelDescriptions
731 
732  return update_size(pb, pos);
733 }
734 
735 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
736 {
737  int64_t pos = avio_tell(pb);
738 
739  avio_wb32(pb, 0); /* size */
740  ffio_wfourcc(pb, "wave");
741 
742  if (track->par->codec_id != AV_CODEC_ID_QDM2) {
743  avio_wb32(pb, 12); /* size */
744  ffio_wfourcc(pb, "frma");
745  avio_wl32(pb, track->tag);
746  }
747 
748  if (track->par->codec_id == AV_CODEC_ID_AAC) {
749  /* useless atom needed by mplayer, ipod, not needed by quicktime */
750  avio_wb32(pb, 12); /* size */
751  ffio_wfourcc(pb, "mp4a");
752  avio_wb32(pb, 0);
753  mov_write_esds_tag(pb, track);
754  } else if (mov_pcm_le_gt16(track->par->codec_id)) {
755  mov_write_enda_tag(pb);
756  } else if (mov_pcm_be_gt16(track->par->codec_id)) {
757  mov_write_enda_tag_be(pb);
758  } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
759  mov_write_amr_tag(pb, track);
760  } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
761  mov_write_ac3_tag(pb, track);
762  } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
763  mov_write_eac3_tag(pb, track);
764  } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
765  track->par->codec_id == AV_CODEC_ID_QDM2) {
766  mov_write_extradata_tag(pb, track);
767  } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
768  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
769  mov_write_ms_tag(s, pb, track);
770  }
771 
772  avio_wb32(pb, 8); /* size */
773  avio_wb32(pb, 0); /* null tag */
774 
775  return update_size(pb, pos);
776 }
777 
778 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
779 {
780  uint8_t *unescaped;
781  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
782  int unescaped_size, seq_found = 0;
783  int level = 0, interlace = 0;
784  int packet_seq = track->vc1_info.packet_seq;
785  int packet_entry = track->vc1_info.packet_entry;
786  int slices = track->vc1_info.slices;
787  PutBitContext pbc;
788 
789  if (track->start_dts == AV_NOPTS_VALUE) {
790  /* No packets written yet, vc1_info isn't authoritative yet. */
791  /* Assume inline sequence and entry headers. */
792  packet_seq = packet_entry = 1;
793  av_log(NULL, AV_LOG_WARNING,
794  "moov atom written before any packets, unable to write correct "
795  "dvc1 atom. Set the delay_moov flag to fix this.\n");
796  }
797 
798  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
799  if (!unescaped)
800  return AVERROR(ENOMEM);
801  start = find_next_marker(track->vos_data, end);
802  for (next = start; next < end; start = next) {
803  GetBitContext gb;
804  int size;
805  next = find_next_marker(start + 4, end);
806  size = next - start - 4;
807  if (size <= 0)
808  continue;
809  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
810  init_get_bits(&gb, unescaped, 8 * unescaped_size);
811  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
812  int profile = get_bits(&gb, 2);
813  if (profile != PROFILE_ADVANCED) {
814  av_free(unescaped);
815  return AVERROR(ENOSYS);
816  }
817  seq_found = 1;
818  level = get_bits(&gb, 3);
819  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
820  * width, height */
821  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
822  skip_bits(&gb, 1); /* broadcast */
823  interlace = get_bits1(&gb);
824  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
825  }
826  }
827  if (!seq_found) {
828  av_free(unescaped);
829  return AVERROR(ENOSYS);
830  }
831 
832  init_put_bits(&pbc, buf, 7);
833  /* VC1DecSpecStruc */
834  put_bits(&pbc, 4, 12); /* profile - advanced */
835  put_bits(&pbc, 3, level);
836  put_bits(&pbc, 1, 0); /* reserved */
837  /* VC1AdvDecSpecStruc */
838  put_bits(&pbc, 3, level);
839  put_bits(&pbc, 1, 0); /* cbr */
840  put_bits(&pbc, 6, 0); /* reserved */
841  put_bits(&pbc, 1, !interlace); /* no interlace */
842  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
843  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
844  put_bits(&pbc, 1, !slices); /* no slice code */
845  put_bits(&pbc, 1, 0); /* no bframe */
846  put_bits(&pbc, 1, 0); /* reserved */
847 
848  /* framerate */
849  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
850  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
851  else
852  put_bits32(&pbc, 0xffffffff);
853 
854  flush_put_bits(&pbc);
855 
856  av_free(unescaped);
857 
858  return 0;
859 }
860 
861 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
862 {
863  uint8_t buf[7] = { 0 };
864  int ret;
865 
866  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
867  return ret;
868 
869  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
870  ffio_wfourcc(pb, "dvc1");
871  avio_write(pb, buf, sizeof(buf));
872  avio_write(pb, track->vos_data, track->vos_len);
873 
874  return 0;
875 }
876 
877 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
878 {
879  avio_wb32(pb, track->vos_len + 8);
880  ffio_wfourcc(pb, "glbl");
881  avio_write(pb, track->vos_data, track->vos_len);
882  return 8 + track->vos_len;
883 }
884 
885 /**
886  * Compute flags for 'lpcm' tag.
887  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
888  */
889 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
890 {
891  switch (codec_id) {
892  case AV_CODEC_ID_PCM_F32BE:
893  case AV_CODEC_ID_PCM_F64BE:
894  return 11;
895  case AV_CODEC_ID_PCM_F32LE:
896  case AV_CODEC_ID_PCM_F64LE:
897  return 9;
898  case AV_CODEC_ID_PCM_U8:
899  return 10;
900  case AV_CODEC_ID_PCM_S16BE:
901  case AV_CODEC_ID_PCM_S24BE:
902  case AV_CODEC_ID_PCM_S32BE:
903  return 14;
904  case AV_CODEC_ID_PCM_S8:
905  case AV_CODEC_ID_PCM_S16LE:
906  case AV_CODEC_ID_PCM_S24LE:
907  case AV_CODEC_ID_PCM_S32LE:
908  return 12;
909  default:
910  return 0;
911  }
912 }
913 
914 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
915 {
916  int64_t next_dts;
917 
918  if (cluster_idx >= track->entry)
919  return 0;
920 
921  if (cluster_idx + 1 == track->entry)
922  next_dts = track->track_duration + track->start_dts;
923  else
924  next_dts = track->cluster[cluster_idx + 1].dts;
925 
926  next_dts -= track->cluster[cluster_idx].dts;
927 
928  av_assert0(next_dts >= 0);
929  av_assert0(next_dts <= INT_MAX);
930 
931  return next_dts;
932 }
933 
934 static int get_samples_per_packet(MOVTrack *track)
935 {
936  int i, first_duration;
937 
938 // return track->par->frame_size;
939 
940  /* use 1 for raw PCM */
941  if (!track->audio_vbr)
942  return 1;
943 
944  /* check to see if duration is constant for all clusters */
945  if (!track->entry)
946  return 0;
947  first_duration = get_cluster_duration(track, 0);
948  for (i = 1; i < track->entry; i++) {
949  if (get_cluster_duration(track, i) != first_duration)
950  return 0;
951  }
952  return first_duration;
953 }
954 
955 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
956 {
957  int64_t pos = avio_tell(pb);
958  int version = 0;
959  uint32_t tag = track->tag;
960 
961  if (track->mode == MODE_MOV) {
962  if (track->timescale > UINT16_MAX) {
963  if (mov_get_lpcm_flags(track->par->codec_id))
964  tag = AV_RL32("lpcm");
965  version = 2;
966  } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
967  mov_pcm_be_gt16(track->par->codec_id) ||
968  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
969  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
970  track->par->codec_id == AV_CODEC_ID_QDM2) {
971  version = 1;
972  }
973  }
974 
975  avio_wb32(pb, 0); /* size */
976  if (mov->encryption_scheme != MOV_ENC_NONE) {
977  ffio_wfourcc(pb, "enca");
978  } else {
979  avio_wl32(pb, tag); // store it byteswapped
980  }
981  avio_wb32(pb, 0); /* Reserved */
982  avio_wb16(pb, 0); /* Reserved */
983  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
984 
985  /* SoundDescription */
986  avio_wb16(pb, version); /* Version */
987  avio_wb16(pb, 0); /* Revision level */
988  avio_wb32(pb, 0); /* Reserved */
989 
990  if (version == 2) {
991  avio_wb16(pb, 3);
992  avio_wb16(pb, 16);
993  avio_wb16(pb, 0xfffe);
994  avio_wb16(pb, 0);
995  avio_wb32(pb, 0x00010000);
996  avio_wb32(pb, 72);
997  avio_wb64(pb, av_double2int(track->par->sample_rate));
998  avio_wb32(pb, track->par->channels);
999  avio_wb32(pb, 0x7F000000);
1000  avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
1001  avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1002  avio_wb32(pb, track->sample_size);
1003  avio_wb32(pb, get_samples_per_packet(track));
1004  } else {
1005  if (track->mode == MODE_MOV) {
1006  avio_wb16(pb, track->par->channels);
1007  if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1008  track->par->codec_id == AV_CODEC_ID_PCM_S8)
1009  avio_wb16(pb, 8); /* bits per sample */
1010  else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1011  avio_wb16(pb, track->par->bits_per_coded_sample);
1012  else
1013  avio_wb16(pb, 16);
1014  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1015  } else { /* reserved for mp4/3gp */
1016  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1017  track->par->codec_id == AV_CODEC_ID_OPUS) {
1018  avio_wb16(pb, track->par->channels);
1019  } else {
1020  avio_wb16(pb, 2);
1021  }
1022  if (track->par->codec_id == AV_CODEC_ID_FLAC) {
1023  avio_wb16(pb, track->par->bits_per_raw_sample);
1024  } else {
1025  avio_wb16(pb, 16);
1026  }
1027  avio_wb16(pb, 0);
1028  }
1029 
1030  avio_wb16(pb, 0); /* packet size (= 0) */
1031  if (track->par->codec_id == AV_CODEC_ID_OPUS)
1032  avio_wb16(pb, 48000);
1033  else
1034  avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1035  track->par->sample_rate : 0);
1036  avio_wb16(pb, 0); /* Reserved */
1037  }
1038 
1039  if (version == 1) { /* SoundDescription V1 extended info */
1040  if (mov_pcm_le_gt16(track->par->codec_id) ||
1041  mov_pcm_be_gt16(track->par->codec_id))
1042  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1043  else
1044  avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1045  avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1046  avio_wb32(pb, track->sample_size); /* Bytes per frame */
1047  avio_wb32(pb, 2); /* Bytes per sample */
1048  }
1049 
1050  if (track->mode == MODE_MOV &&
1051  (track->par->codec_id == AV_CODEC_ID_AAC ||
1052  track->par->codec_id == AV_CODEC_ID_AC3 ||
1053  track->par->codec_id == AV_CODEC_ID_EAC3 ||
1054  track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1055  track->par->codec_id == AV_CODEC_ID_ALAC ||
1056  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1057  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1058  track->par->codec_id == AV_CODEC_ID_QDM2 ||
1059  (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1060  (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1061  mov_write_wave_tag(s, pb, track);
1062  else if (track->tag == MKTAG('m','p','4','a'))
1063  mov_write_esds_tag(pb, track);
1064  else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1065  mov_write_amr_tag(pb, track);
1066  else if (track->par->codec_id == AV_CODEC_ID_AC3)
1067  mov_write_ac3_tag(pb, track);
1068  else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1069  mov_write_eac3_tag(pb, track);
1070  else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1071  mov_write_extradata_tag(pb, track);
1072  else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1073  mov_write_wfex_tag(s, pb, track);
1074  else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1075  mov_write_dfla_tag(pb, track);
1076  else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1077  mov_write_dops_tag(pb, track);
1078  else if (track->vos_len > 0)
1079  mov_write_glbl_tag(pb, track);
1080 
1081  if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1082  mov_write_chan_tag(s, pb, track);
1083 
1084  if (mov->encryption_scheme != MOV_ENC_NONE) {
1085  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1086  }
1087 
1088  return update_size(pb, pos);
1089 }
1090 
1091 static int mov_write_d263_tag(AVIOContext *pb)
1092 {
1093  avio_wb32(pb, 0xf); /* size */
1094  ffio_wfourcc(pb, "d263");
1095  ffio_wfourcc(pb, "FFMP");
1096  avio_w8(pb, 0); /* decoder version */
1097  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1098  avio_w8(pb, 0xa); /* level */
1099  avio_w8(pb, 0); /* profile */
1100  return 0xf;
1101 }
1102 
1103 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1104 {
1105  int64_t pos = avio_tell(pb);
1106 
1107  avio_wb32(pb, 0);
1108  ffio_wfourcc(pb, "avcC");
1109  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1110  return update_size(pb, pos);
1111 }
1112 
1113 static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1114 {
1115  int64_t pos = avio_tell(pb);
1116 
1117  avio_wb32(pb, 0);
1118  ffio_wfourcc(pb, "vpcC");
1119  avio_w8(pb, 1); /* version */
1120  avio_wb24(pb, 0); /* flags */
1121  ff_isom_write_vpcc(s, pb, track->par);
1122  return update_size(pb, pos);
1123 }
1124 
1125 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1126 {
1127  int64_t pos = avio_tell(pb);
1128 
1129  avio_wb32(pb, 0);
1130  ffio_wfourcc(pb, "hvcC");
1131  if (track->tag == MKTAG('h','v','c','1'))
1132  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1133  else
1134  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1135  return update_size(pb, pos);
1136 }
1137 
1138 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1139 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1140 {
1141  int i;
1142  int interlaced;
1143  int cid;
1144  int display_width = track->par->width;
1145 
1146  if (track->vos_data && track->vos_len > 0x29) {
1147  if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1148  /* looks like a DNxHD bit stream */
1149  interlaced = (track->vos_data[5] & 2);
1150  cid = AV_RB32(track->vos_data + 0x28);
1151  } else {
1152  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1153  return 0;
1154  }
1155  } else {
1156  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1157  return 0;
1158  }
1159 
1160  avio_wb32(pb, 24); /* size */
1161  ffio_wfourcc(pb, "ACLR");
1162  ffio_wfourcc(pb, "ACLR");
1163  ffio_wfourcc(pb, "0001");
1164  if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1165  track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1166  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1167  } else { /* Full range (0-255) */
1168  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1169  }
1170  avio_wb32(pb, 0); /* unknown */
1171 
1172  if (track->tag == MKTAG('A','V','d','h')) {
1173  avio_wb32(pb, 32);
1174  ffio_wfourcc(pb, "ADHR");
1175  ffio_wfourcc(pb, "0001");
1176  avio_wb32(pb, cid);
1177  avio_wb32(pb, 0); /* unknown */
1178  avio_wb32(pb, 1); /* unknown */
1179  avio_wb32(pb, 0); /* unknown */
1180  avio_wb32(pb, 0); /* unknown */
1181  return 0;
1182  }
1183 
1184  avio_wb32(pb, 24); /* size */
1185  ffio_wfourcc(pb, "APRG");
1186  ffio_wfourcc(pb, "APRG");
1187  ffio_wfourcc(pb, "0001");
1188  avio_wb32(pb, 1); /* unknown */
1189  avio_wb32(pb, 0); /* unknown */
1190 
1191  avio_wb32(pb, 120); /* size */
1192  ffio_wfourcc(pb, "ARES");
1193  ffio_wfourcc(pb, "ARES");
1194  ffio_wfourcc(pb, "0001");
1195  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1196  if ( track->par->sample_aspect_ratio.num > 0
1197  && track->par->sample_aspect_ratio.den > 0)
1198  display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1199  avio_wb32(pb, display_width);
1200  /* values below are based on samples created with quicktime and avid codecs */
1201  if (interlaced) {
1202  avio_wb32(pb, track->par->height / 2);
1203  avio_wb32(pb, 2); /* unknown */
1204  avio_wb32(pb, 0); /* unknown */
1205  avio_wb32(pb, 4); /* unknown */
1206  } else {
1207  avio_wb32(pb, track->par->height);
1208  avio_wb32(pb, 1); /* unknown */
1209  avio_wb32(pb, 0); /* unknown */
1210  if (track->par->height == 1080)
1211  avio_wb32(pb, 5); /* unknown */
1212  else
1213  avio_wb32(pb, 6); /* unknown */
1214  }
1215  /* padding */
1216  for (i = 0; i < 10; i++)
1217  avio_wb64(pb, 0);
1218 
1219  return 0;
1220 }
1221 
1222 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1223 {
1224  avio_wb32(pb, 12);
1225  ffio_wfourcc(pb, "DpxE");
1226  if (track->par->extradata_size >= 12 &&
1227  !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1228  avio_wb32(pb, track->par->extradata[11]);
1229  } else {
1230  avio_wb32(pb, 1);
1231  }
1232  return 0;
1233 }
1234 
1235 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1236 {
1237  int tag;
1238 
1239  if (track->par->width == 720) { /* SD */
1240  if (track->par->height == 480) { /* NTSC */
1241  if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1242  else tag = MKTAG('d','v','c',' ');
1243  }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1244  else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1245  else tag = MKTAG('d','v','p','p');
1246  } else if (track->par->height == 720) { /* HD 720 line */
1247  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1248  else tag = MKTAG('d','v','h','p');
1249  } else if (track->par->height == 1080) { /* HD 1080 line */
1250  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1251  else tag = MKTAG('d','v','h','6');
1252  } else {
1253  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1254  return 0;
1255  }
1256 
1257  return tag;
1258 }
1259 
1260 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1261 {
1262  AVRational rate = st->avg_frame_rate;
1263 
1264 #if FF_API_LAVF_AVCTX
1265  FF_DISABLE_DEPRECATION_WARNINGS
1266  rate = av_inv_q(st->codec->time_base);
1267  if (av_timecode_check_frame_rate(rate) < 0) {
1268  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1269  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1270  rate = st->avg_frame_rate;
1271  }
1272  FF_ENABLE_DEPRECATION_WARNINGS
1273 #endif
1274 
1275  return rate;
1276 }
1277 
1278 static int defined_frame_rate(AVFormatContext *s, AVStream *st)
1279 {
1280  AVRational rational_framerate = find_fps(s, st);
1281  int rate = 0;
1282  if (rational_framerate.den != 0)
1283  rate = av_q2d(rational_framerate);
1284  return rate;
1285 }
1286 
1287 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1288 {
1289  int tag = track->par->codec_tag;
1290  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1291  AVStream *st = track->st;
1292  int rate = defined_frame_rate(s, st);
1293 
1294  if (!tag)
1295  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1296 
1297  if (track->par->format == AV_PIX_FMT_YUV420P) {
1298  if (track->par->width == 1280 && track->par->height == 720) {
1299  if (!interlaced) {
1300  if (rate == 24) tag = MKTAG('x','d','v','4');
1301  else if (rate == 25) tag = MKTAG('x','d','v','5');
1302  else if (rate == 30) tag = MKTAG('x','d','v','1');
1303  else if (rate == 50) tag = MKTAG('x','d','v','a');
1304  else if (rate == 60) tag = MKTAG('x','d','v','9');
1305  }
1306  } else if (track->par->width == 1440 && track->par->height == 1080) {
1307  if (!interlaced) {
1308  if (rate == 24) tag = MKTAG('x','d','v','6');
1309  else if (rate == 25) tag = MKTAG('x','d','v','7');
1310  else if (rate == 30) tag = MKTAG('x','d','v','8');
1311  } else {
1312  if (rate == 25) tag = MKTAG('x','d','v','3');
1313  else if (rate == 30) tag = MKTAG('x','d','v','2');
1314  }
1315  } else if (track->par->width == 1920 && track->par->height == 1080) {
1316  if (!interlaced) {
1317  if (rate == 24) tag = MKTAG('x','d','v','d');
1318  else if (rate == 25) tag = MKTAG('x','d','v','e');
1319  else if (rate == 30) tag = MKTAG('x','d','v','f');
1320  } else {
1321  if (rate == 25) tag = MKTAG('x','d','v','c');
1322  else if (rate == 30) tag = MKTAG('x','d','v','b');
1323  }
1324  }
1325  } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1326  if (track->par->width == 1280 && track->par->height == 720) {
1327  if (!interlaced) {
1328  if (rate == 24) tag = MKTAG('x','d','5','4');
1329  else if (rate == 25) tag = MKTAG('x','d','5','5');
1330  else if (rate == 30) tag = MKTAG('x','d','5','1');
1331  else if (rate == 50) tag = MKTAG('x','d','5','a');
1332  else if (rate == 60) tag = MKTAG('x','d','5','9');
1333  }
1334  } else if (track->par->width == 1920 && track->par->height == 1080) {
1335  if (!interlaced) {
1336  if (rate == 24) tag = MKTAG('x','d','5','d');
1337  else if (rate == 25) tag = MKTAG('x','d','5','e');
1338  else if (rate == 30) tag = MKTAG('x','d','5','f');
1339  } else {
1340  if (rate == 25) tag = MKTAG('x','d','5','c');
1341  else if (rate == 30) tag = MKTAG('x','d','5','b');
1342  }
1343  }
1344  }
1345 
1346  return tag;
1347 }
1348 
1349 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1350 {
1351  int tag = track->par->codec_tag;
1352  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1353  AVStream *st = track->st;
1354  int rate = defined_frame_rate(s, st);
1355 
1356  if (!tag)
1357  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1358 
1359  if (track->par->format == AV_PIX_FMT_YUV420P10) {
1360  if (track->par->width == 960 && track->par->height == 720) {
1361  if (!interlaced) {
1362  if (rate == 24) tag = MKTAG('a','i','5','p');
1363  else if (rate == 25) tag = MKTAG('a','i','5','q');
1364  else if (rate == 30) tag = MKTAG('a','i','5','p');
1365  else if (rate == 50) tag = MKTAG('a','i','5','q');
1366  else if (rate == 60) tag = MKTAG('a','i','5','p');
1367  }
1368  } else if (track->par->width == 1440 && track->par->height == 1080) {
1369  if (!interlaced) {
1370  if (rate == 24) tag = MKTAG('a','i','5','3');
1371  else if (rate == 25) tag = MKTAG('a','i','5','2');
1372  else if (rate == 30) tag = MKTAG('a','i','5','3');
1373  } else {
1374  if (rate == 50) tag = MKTAG('a','i','5','5');
1375  else if (rate == 60) tag = MKTAG('a','i','5','6');
1376  }
1377  }
1378  } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1379  if (track->par->width == 1280 && track->par->height == 720) {
1380  if (!interlaced) {
1381  if (rate == 24) tag = MKTAG('a','i','1','p');
1382  else if (rate == 25) tag = MKTAG('a','i','1','q');
1383  else if (rate == 30) tag = MKTAG('a','i','1','p');
1384  else if (rate == 50) tag = MKTAG('a','i','1','q');
1385  else if (rate == 60) tag = MKTAG('a','i','1','p');
1386  }
1387  } else if (track->par->width == 1920 && track->par->height == 1080) {
1388  if (!interlaced) {
1389  if (rate == 24) tag = MKTAG('a','i','1','3');
1390  else if (rate == 25) tag = MKTAG('a','i','1','2');
1391  else if (rate == 30) tag = MKTAG('a','i','1','3');
1392  } else {
1393  if (rate == 25) tag = MKTAG('a','i','1','5');
1394  else if (rate == 50) tag = MKTAG('a','i','1','5');
1395  else if (rate == 60) tag = MKTAG('a','i','1','6');
1396  }
1397  } else if ( track->par->width == 4096 && track->par->height == 2160
1398  || track->par->width == 3840 && track->par->height == 2160
1399  || track->par->width == 2048 && track->par->height == 1080) {
1400  tag = MKTAG('a','i','v','x');
1401  }
1402  }
1403 
1404  return tag;
1405 }
1406 
1407 static const struct {
1408  enum AVPixelFormat pix_fmt;
1409  uint32_t tag;
1410  unsigned bps;
1411 } mov_pix_fmt_tags[] = {
1412  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1413  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1414  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1415  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1416  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1417  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1418  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1419  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1420  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1421  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1422  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1423  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1424  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1425  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1426  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1427 };
1428 
1429 static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
1430 {
1431  int tag = MKTAG('A','V','d','n');
1432  if (track->par->profile != FF_PROFILE_UNKNOWN &&
1433  track->par->profile != FF_PROFILE_DNXHD)
1434  tag = MKTAG('A','V','d','h');
1435  return tag;
1436 }
1437 
1438 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1439 {
1440  int tag = track->par->codec_tag;
1441  int i;
1442  enum AVPixelFormat pix_fmt;
1443 
1444  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1445  if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1446  tag = mov_pix_fmt_tags[i].tag;
1447  track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1448  if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1449  break;
1450  }
1451  }
1452 
1453  pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1454  track->par->bits_per_coded_sample);
1455  if (tag == MKTAG('r','a','w',' ') &&
1456  track->par->format != pix_fmt &&
1457  track->par->format != AV_PIX_FMT_GRAY8 &&
1458  track->par->format != AV_PIX_FMT_NONE)
1459  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1460  av_get_pix_fmt_name(track->par->format));
1461  return tag;
1462 }
1463 
1464 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1465 {
1466  int tag = track->par->codec_tag;
1467 
1468  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1469  (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1470  track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1471  track->par->codec_id == AV_CODEC_ID_H263 ||
1472  track->par->codec_id == AV_CODEC_ID_H264 ||
1473  track->par->codec_id == AV_CODEC_ID_DNXHD ||
1474  track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1475  av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1476  if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1477  tag = mov_get_dv_codec_tag(s, track);
1478  else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1479  tag = mov_get_rawvideo_codec_tag(s, track);
1480  else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1481  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1482  else if (track->par->codec_id == AV_CODEC_ID_H264)
1483  tag = mov_get_h264_codec_tag(s, track);
1484  else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1485  tag = mov_get_dnxhd_codec_tag(s, track);
1486  else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1487  tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1488  if (!tag) { // if no mac fcc found, try with Microsoft tags
1489  tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1490  if (tag)
1491  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1492  "the file may be unplayable!\n");
1493  }
1494  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1495  tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1496  if (!tag) { // if no mac fcc found, try with Microsoft tags
1497  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1498  if (ms_tag) {
1499  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1500  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1501  "the file may be unplayable!\n");
1502  }
1503  }
1504  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1505  tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1506  }
1507 
1508  return tag;
1509 }
1510 
1511 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1512 {
1513  int tag;
1514 
1515  if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1516  tag = track->par->codec_tag;
1517  else if (track->mode == MODE_ISM)
1518  tag = track->par->codec_tag;
1519  else if (track->mode == MODE_IPOD) {
1520  if (!av_match_ext(s->filename, "m4a") &&
1521  !av_match_ext(s->filename, "m4v") &&
1522  !av_match_ext(s->filename, "m4b"))
1523  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1524  "Quicktime/Ipod might not play the file\n");
1525  tag = track->par->codec_tag;
1526  } else if (track->mode & MODE_3GP)
1527  tag = track->par->codec_tag;
1528  else if (track->mode == MODE_F4V)
1529  tag = track->par->codec_tag;
1530  else
1531  tag = mov_get_codec_tag(s, track);
1532 
1533  return tag;
1534 }
1535 
1536 /** Write uuid atom.
1537  * Needed to make file play in iPods running newest firmware
1538  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1539  */
1540 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1541 {
1542  avio_wb32(pb, 28);
1543  ffio_wfourcc(pb, "uuid");
1544  avio_wb32(pb, 0x6b6840f2);
1545  avio_wb32(pb, 0x5f244fc5);
1546  avio_wb32(pb, 0xba39a51b);
1547  avio_wb32(pb, 0xcf0323f3);
1548  avio_wb32(pb, 0x0);
1549  return 28;
1550 }
1551 
1552 static const uint16_t fiel_data[] = {
1553  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1554 };
1555 
1556 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1557 {
1558  unsigned mov_field_order = 0;
1559  if (field_order < FF_ARRAY_ELEMS(fiel_data))
1560  mov_field_order = fiel_data[field_order];
1561  else
1562  return 0;
1563  avio_wb32(pb, 10);
1564  ffio_wfourcc(pb, "fiel");
1565  avio_wb16(pb, mov_field_order);
1566  return 10;
1567 }
1568 
1569 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1570 {
1571  int64_t pos = avio_tell(pb);
1572  avio_wb32(pb, 0); /* size */
1573  avio_wl32(pb, track->tag); // store it byteswapped
1574  avio_wb32(pb, 0); /* Reserved */
1575  avio_wb16(pb, 0); /* Reserved */
1576  avio_wb16(pb, 1); /* Data-reference index */
1577 
1578  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1579  mov_write_esds_tag(pb, track);
1580  else if (track->par->extradata_size)
1581  avio_write(pb, track->par->extradata, track->par->extradata_size);
1582 
1583  return update_size(pb, pos);
1584 }
1585 
1586 static int mov_write_st3d_tag(AVIOContext *pb, AVStereo3D *stereo_3d)
1587 {
1588  int8_t stereo_mode;
1589 
1590  if (stereo_3d->flags != 0) {
1591  av_log(pb, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1592  return 0;
1593  }
1594 
1595  switch (stereo_3d->type) {
1596  case AV_STEREO3D_2D:
1597  stereo_mode = 0;
1598  break;
1599  case AV_STEREO3D_TOPBOTTOM:
1600  stereo_mode = 1;
1601  break;
1602  case AV_STEREO3D_SIDEBYSIDE:
1603  stereo_mode = 2;
1604  break;
1605  default:
1606  av_log(pb, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1607  return 0;
1608  }
1609  avio_wb32(pb, 13); /* size */
1610  ffio_wfourcc(pb, "st3d");
1611  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1612  avio_w8(pb, stereo_mode);
1613  return 13;
1614 }
1615 
1616 static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
1617 {
1618  int64_t sv3d_pos, svhd_pos, proj_pos;
1619  const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1620 
1621  if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1622  spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1623  spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1624  av_log(pb, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1625  return 0;
1626  }
1627 
1628  sv3d_pos = avio_tell(pb);
1629  avio_wb32(pb, 0); /* size */
1630  ffio_wfourcc(pb, "sv3d");
1631 
1632  svhd_pos = avio_tell(pb);
1633  avio_wb32(pb, 0); /* size */
1634  ffio_wfourcc(pb, "svhd");
1635  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1636  avio_put_str(pb, metadata_source);
1637  update_size(pb, svhd_pos);
1638 
1639  proj_pos = avio_tell(pb);
1640  avio_wb32(pb, 0); /* size */
1641  ffio_wfourcc(pb, "proj");
1642 
1643  avio_wb32(pb, 24); /* size */
1644  ffio_wfourcc(pb, "prhd");
1645  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1646  avio_wb32(pb, spherical_mapping->yaw);
1647  avio_wb32(pb, spherical_mapping->pitch);
1648  avio_wb32(pb, spherical_mapping->roll);
1649 
1650  switch (spherical_mapping->projection) {
1651  case AV_SPHERICAL_EQUIRECTANGULAR:
1652  case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
1653  avio_wb32(pb, 28); /* size */
1654  ffio_wfourcc(pb, "equi");
1655  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1656  avio_wb32(pb, spherical_mapping->bound_top);
1657  avio_wb32(pb, spherical_mapping->bound_bottom);
1658  avio_wb32(pb, spherical_mapping->bound_left);
1659  avio_wb32(pb, spherical_mapping->bound_right);
1660  break;
1661  case AV_SPHERICAL_CUBEMAP:
1662  avio_wb32(pb, 20); /* size */
1663  ffio_wfourcc(pb, "cbmp");
1664  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1665  avio_wb32(pb, 0); /* layout */
1666  avio_wb32(pb, spherical_mapping->padding); /* padding */
1667  break;
1668  }
1669  update_size(pb, proj_pos);
1670 
1671  return update_size(pb, sv3d_pos);
1672 }
1673 
1674 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1675 {
1676  AVRational sar;
1677  av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1678  track->par->sample_aspect_ratio.den, INT_MAX);
1679 
1680  avio_wb32(pb, 16);
1681  ffio_wfourcc(pb, "pasp");
1682  avio_wb32(pb, sar.num);
1683  avio_wb32(pb, sar.den);
1684  return 16;
1685 }
1686 
1687 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1688 {
1689  uint32_t gama = 0;
1690  if (gamma <= 0.0)
1691  {
1692  gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1693  }
1694  av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1695 
1696  if (gamma > 1e-6) {
1697  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1698  av_log(pb, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1699 
1700  av_assert0(track->mode == MODE_MOV);
1701  avio_wb32(pb, 12);
1702  ffio_wfourcc(pb, "gama");
1703  avio_wb32(pb, gama);
1704  return 12;
1705  }
1706  else {
1707  av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1708  }
1709  return 0;
1710 }
1711 
1712 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1713 {
1714  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1715  // Ref (MP4): ISO/IEC 14496-12:2012
1716 
1717  if (track->par->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1718  track->par->color_trc == AVCOL_TRC_UNSPECIFIED &&
1719  track->par->color_space == AVCOL_SPC_UNSPECIFIED) {
1720  if ((track->par->width >= 1920 && track->par->height >= 1080)
1721  || (track->par->width == 1280 && track->par->height == 720)) {
1722  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1723  track->par->color_primaries = AVCOL_PRI_BT709;
1724  } else if (track->par->width == 720 && track->height == 576) {
1725  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1726  track->par->color_primaries = AVCOL_PRI_BT470BG;
1727  } else if (track->par->width == 720 &&
1728  (track->height == 486 || track->height == 480)) {
1729  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1730  track->par->color_primaries = AVCOL_PRI_SMPTE170M;
1731  } else {
1732  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1733  }
1734  switch (track->par->color_primaries) {
1735  case AVCOL_PRI_BT709:
1736  track->par->color_trc = AVCOL_TRC_BT709;
1737  track->par->color_space = AVCOL_SPC_BT709;
1738  break;
1739  case AVCOL_PRI_SMPTE170M:
1740  case AVCOL_PRI_BT470BG:
1741  track->par->color_trc = AVCOL_TRC_BT709;
1742  track->par->color_space = AVCOL_SPC_SMPTE170M;
1743  break;
1744  }
1745  }
1746 
1747  /* We should only ever be called by MOV or MP4. */
1748  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1749 
1750  avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1751  ffio_wfourcc(pb, "colr");
1752  if (track->mode == MODE_MP4)
1753  ffio_wfourcc(pb, "nclx");
1754  else
1755  ffio_wfourcc(pb, "nclc");
1756  switch (track->par->color_primaries) {
1757  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1758  case AVCOL_PRI_SMPTE170M:
1759  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1760  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1761  default: avio_wb16(pb, 2);
1762  }
1763  switch (track->par->color_trc) {
1764  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1765  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1766  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1767  default: avio_wb16(pb, 2);
1768  }
1769  switch (track->par->color_space) {
1770  case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1771  case AVCOL_SPC_BT470BG:
1772  case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1773  case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1774  default: avio_wb16(pb, 2);
1775  }
1776 
1777  if (track->mode == MODE_MP4) {
1778  int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
1779  avio_w8(pb, full_range << 7);
1780  return 19;
1781  } else {
1782  return 18;
1783  }
1784 }
1785 
1786 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1787 {
1788  AVDictionaryEntry *encoder;
1789  int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
1790  || (track->par->width == 1440 && track->par->height == 1080)
1791  || (track->par->width == 1920 && track->par->height == 1080);
1792 
1793  if (track->mode == MODE_MOV &&
1794  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1795  av_strlcpy(compressor_name, encoder->value, 32);
1796  } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1797  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1798  AVStream *st = track->st;
1799  int rate = defined_frame_rate(NULL, st);
1800  av_strlcatf(compressor_name, len, "XDCAM");
1801  if (track->par->format == AV_PIX_FMT_YUV422P) {
1802  av_strlcatf(compressor_name, len, " HD422");
1803  } else if(track->par->width == 1440) {
1804  av_strlcatf(compressor_name, len, " HD");
1805  } else
1806  av_strlcatf(compressor_name, len, " EX");
1807 
1808  av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
1809 
1810  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1811  }
1812 }
1813 
1814 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1815 {
1816  int64_t pos = avio_tell(pb);
1817  char compressor_name[32] = { 0 };
1818  int avid = 0;
1819 
1820  avio_wb32(pb, 0); /* size */
1821  if (mov->encryption_scheme != MOV_ENC_NONE) {
1822  ffio_wfourcc(pb, "encv");
1823  } else {
1824  avio_wl32(pb, track->tag); // store it byteswapped
1825  }
1826  avio_wb32(pb, 0); /* Reserved */
1827  avio_wb16(pb, 0); /* Reserved */
1828  avio_wb16(pb, 1); /* Data-reference index */
1829 
1830  avio_wb16(pb, 0); /* Codec stream version */
1831  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1832  if (track->mode == MODE_MOV) {
1833  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1834  if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1835  avio_wb32(pb, 0); /* Temporal Quality */
1836  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1837  } else {
1838  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1839  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1840  }
1841  } else {
1842  avio_wb32(pb, 0); /* Reserved */
1843  avio_wb32(pb, 0); /* Reserved */
1844  avio_wb32(pb, 0); /* Reserved */
1845  }
1846  avio_wb16(pb, track->par->width); /* Video width */
1847  avio_wb16(pb, track->height); /* Video height */
1848  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1849  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1850  avio_wb32(pb, 0); /* Data size (= 0) */
1851  avio_wb16(pb, 1); /* Frame count (= 1) */
1852 
1853  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1854  find_compressor(compressor_name, 32, track);
1855  avio_w8(pb, strlen(compressor_name));
1856  avio_write(pb, compressor_name, 31);
1857 
1858  if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
1859  avio_wb16(pb, track->par->bits_per_coded_sample |
1860  (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
1861  else
1862  avio_wb16(pb, 0x18); /* Reserved */
1863 
1864  if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
1865  int pal_size = 1 << track->par->bits_per_coded_sample;
1866  int i;
1867  avio_wb16(pb, 0); /* Color table ID */
1868  avio_wb32(pb, 0); /* Color table seed */
1869  avio_wb16(pb, 0x8000); /* Color table flags */
1870  avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
1871  for (i = 0; i < pal_size; i++) {
1872  uint32_t rgb = track->palette[i];
1873  uint16_t r = (rgb >> 16) & 0xff;
1874  uint16_t g = (rgb >> 8) & 0xff;
1875  uint16_t b = rgb & 0xff;
1876  avio_wb16(pb, 0);
1877  avio_wb16(pb, (r << 8) | r);
1878  avio_wb16(pb, (g << 8) | g);
1879  avio_wb16(pb, (b << 8) | b);
1880  }
1881  } else
1882  avio_wb16(pb, 0xffff); /* Reserved */
1883 
1884  if (track->tag == MKTAG('m','p','4','v'))
1885  mov_write_esds_tag(pb, track);
1886  else if (track->par->codec_id == AV_CODEC_ID_H263)
1887  mov_write_d263_tag(pb);
1888  else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
1889  track->par->codec_id == AV_CODEC_ID_SVQ3) {
1890  mov_write_extradata_tag(pb, track);
1891  avio_wb32(pb, 0);
1892  } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
1893  mov_write_avid_tag(pb, track);
1894  avid = 1;
1895  } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
1896  mov_write_hvcc_tag(pb, track);
1897  else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1898  mov_write_avcc_tag(pb, track);
1899  if (track->mode == MODE_IPOD)
1900  mov_write_uuid_tag_ipod(pb);
1901  } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
1902  mov_write_vpcc_tag(mov->fc, pb, track);
1903  } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1904  mov_write_dvc1_tag(pb, track);
1905  else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
1906  track->par->codec_id == AV_CODEC_ID_VP6A) {
1907  /* Don't write any potential extradata here - the cropping
1908  * is signalled via the normal width/height fields. */
1909  } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
1910  if (track->par->codec_tag == MKTAG('R','1','0','k'))
1911  mov_write_dpxe_tag(pb, track);
1912  } else if (track->vos_len > 0)
1913  mov_write_glbl_tag(pb, track);
1914 
1915  if (track->par->codec_id != AV_CODEC_ID_H264 &&
1916  track->par->codec_id != AV_CODEC_ID_MPEG4 &&
1917  track->par->codec_id != AV_CODEC_ID_DNXHD) {
1918  int field_order = track->par->field_order;
1919 
1920 #if FF_API_LAVF_AVCTX
1921  FF_DISABLE_DEPRECATION_WARNINGS
1922  if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
1923  field_order = track->st->codec->field_order;
1924  FF_ENABLE_DEPRECATION_WARNINGS
1925 #endif
1926 
1927  if (field_order != AV_FIELD_UNKNOWN)
1928  mov_write_fiel_tag(pb, track, field_order);
1929  }
1930 
1931  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1932  if (track->mode == MODE_MOV)
1933  mov_write_gama_tag(pb, track, mov->gamma);
1934  else
1935  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1936  }
1937  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1938  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1939  mov_write_colr_tag(pb, track);
1940  else
1941  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1942  }
1943 
1944  if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
1945  AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
1946  AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
1947 
1948  if (stereo_3d)
1949  mov_write_st3d_tag(pb, stereo_3d);
1950  if (spherical_mapping)
1951  mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
1952  }
1953 
1954  if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
1955  mov_write_pasp_tag(pb, track);
1956  }
1957 
1958  if (mov->encryption_scheme != MOV_ENC_NONE) {
1959  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1960  }
1961 
1962  /* extra padding for avid stsd */
1963  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1964  if (avid)
1965  avio_wb32(pb, 0);
1966 
1967  return update_size(pb, pos);
1968 }
1969 
1970 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1971 {
1972  int64_t pos = avio_tell(pb);
1973  avio_wb32(pb, 0); /* size */
1974  ffio_wfourcc(pb, "rtp ");
1975  avio_wb32(pb, 0); /* Reserved */
1976  avio_wb16(pb, 0); /* Reserved */
1977  avio_wb16(pb, 1); /* Data-reference index */
1978 
1979  avio_wb16(pb, 1); /* Hint track version */
1980  avio_wb16(pb, 1); /* Highest compatible version */
1981  avio_wb32(pb, track->max_packet_size); /* Max packet size */
1982 
1983  avio_wb32(pb, 12); /* size */
1984  ffio_wfourcc(pb, "tims");
1985  avio_wb32(pb, track->timescale);
1986 
1987  return update_size(pb, pos);
1988 }
1989 
1990 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1991 {
1992  uint64_t str_size =strlen(reel_name);
1993  int64_t pos = avio_tell(pb);
1994 
1995  if (str_size >= UINT16_MAX){
1996  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1997  avio_wb16(pb, 0);
1998  return AVERROR(EINVAL);
1999  }
2000 
2001  avio_wb32(pb, 0); /* size */
2002  ffio_wfourcc(pb, "name"); /* Data format */
2003  avio_wb16(pb, str_size); /* string size */
2004  avio_wb16(pb, track->language); /* langcode */
2005  avio_write(pb, reel_name, str_size); /* reel name */
2006  return update_size(pb,pos);
2007 }
2008 
2009 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2010 {
2011  int64_t pos = avio_tell(pb);
2012 #if 1
2013  int frame_duration;
2014  int nb_frames;
2015  AVDictionaryEntry *t = NULL;
2016 
2017  if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2018 #if FF_API_LAVF_AVCTX
2019  FF_DISABLE_DEPRECATION_WARNINGS
2020  frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
2021  nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
2022  FF_ENABLE_DEPRECATION_WARNINGS
2023 #else
2024  av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2025  return AVERROR(EINVAL);
2026 #endif
2027  } else {
2028  frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2029  nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2030  }
2031 
2032  if (nb_frames > 255) {
2033  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2034  return AVERROR(EINVAL);
2035  }
2036 
2037  avio_wb32(pb, 0); /* size */
2038  ffio_wfourcc(pb, "tmcd"); /* Data format */
2039  avio_wb32(pb, 0); /* Reserved */
2040  avio_wb32(pb, 1); /* Data reference index */
2041  avio_wb32(pb, 0); /* Flags */
2042  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2043  avio_wb32(pb, track->timescale); /* Timescale */
2044  avio_wb32(pb, frame_duration); /* Frame duration */
2045  avio_w8(pb, nb_frames); /* Number of frames */
2046  avio_w8(pb, 0); /* Reserved */
2047 
2048  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2049  if (t && utf8len(t->value) && track->mode != MODE_MP4)
2050  mov_write_source_reference_tag(pb, track, t->value);
2051  else
2052  avio_wb16(pb, 0); /* zero size */
2053 #else
2054 
2055  avio_wb32(pb, 0); /* size */
2056  ffio_wfourcc(pb, "tmcd"); /* Data format */
2057  avio_wb32(pb, 0); /* Reserved */
2058  avio_wb32(pb, 1); /* Data reference index */
2059  if (track->par->extradata_size)
2060  avio_write(pb, track->par->extradata, track->par->extradata_size);
2061 #endif
2062  return update_size(pb, pos);
2063 }
2064 
2065 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2066 {
2067  int64_t pos = avio_tell(pb);
2068  avio_wb32(pb, 0); /* size */
2069  ffio_wfourcc(pb, "gpmd");
2070  avio_wb32(pb, 0); /* Reserved */
2071  avio_wb16(pb, 0); /* Reserved */
2072  avio_wb16(pb, 1); /* Data-reference index */
2073  avio_wb32(pb, 0); /* Reserved */
2074  return update_size(pb, pos);
2075 }
2076 
2077 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2078 {
2079  int64_t pos = avio_tell(pb);
2080  avio_wb32(pb, 0); /* size */
2081  ffio_wfourcc(pb, "stsd");
2082  avio_wb32(pb, 0); /* version & flags */
2083  avio_wb32(pb, 1); /* entry count */
2084  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2085  mov_write_video_tag(pb, mov, track);
2086  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2087  mov_write_audio_tag(s, pb, mov, track);
2088  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2089  mov_write_subtitle_tag(pb, track);
2090  else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2091  mov_write_rtp_tag(pb, track);
2092  else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2093  mov_write_tmcd_tag(pb, track);
2094  else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2095  mov_write_gpmd_tag(pb, track);
2096  return update_size(pb, pos);
2097 }
2098 
2099 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2100 {
2101  MOVMuxContext *mov = s->priv_data;
2102  MOVStts *ctts_entries;
2103  uint32_t entries = 0;
2104  uint32_t atom_size;
2105  int i;
2106 
2107  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2108  if (!ctts_entries)
2109  return AVERROR(ENOMEM);
2110  ctts_entries[0].count = 1;
2111  ctts_entries[0].duration = track->cluster[0].cts;
2112  for (i = 1; i < track->entry; i++) {
2113  if (track->cluster[i].cts == ctts_entries[entries].duration) {
2114  ctts_entries[entries].count++; /* compress */
2115  } else {
2116  entries++;
2117  ctts_entries[entries].duration = track->cluster[i].cts;
2118  ctts_entries[entries].count = 1;
2119  }
2120  }
2121  entries++; /* last one */
2122  atom_size = 16 + (entries * 8);
2123  avio_wb32(pb, atom_size); /* size */
2124  ffio_wfourcc(pb, "ctts");
2125  if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2126  avio_w8(pb, 1); /* version */
2127  else
2128  avio_w8(pb, 0); /* version */
2129  avio_wb24(pb, 0); /* flags */
2130  avio_wb32(pb, entries); /* entry count */
2131  for (i = 0; i < entries; i++) {
2132  avio_wb32(pb, ctts_entries[i].count);
2133  avio_wb32(pb, ctts_entries[i].duration);
2134  }
2135  av_free(ctts_entries);
2136  return atom_size;
2137 }
2138 
2139 /* Time to sample atom */
2140 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2141 {
2142  MOVStts *stts_entries = NULL;
2143  uint32_t entries = -1;
2144  uint32_t atom_size;
2145  int i;
2146 
2147  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2148  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2149  if (!stts_entries)
2150  return AVERROR(ENOMEM);
2151  stts_entries[0].count = track->sample_count;
2152  stts_entries[0].duration = 1;
2153  entries = 1;
2154  } else {
2155  if (track->entry) {
2156  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2157  if (!stts_entries)
2158  return AVERROR(ENOMEM);
2159  }
2160  for (i = 0; i < track->entry; i++) {
2161  int duration = get_cluster_duration(track, i);
2162  if (i && duration == stts_entries[entries].duration) {
2163  stts_entries[entries].count++; /* compress */
2164  } else {
2165  entries++;
2166  stts_entries[entries].duration = duration;
2167  stts_entries[entries].count = 1;
2168  }
2169  }
2170  entries++; /* last one */
2171  }
2172  atom_size = 16 + (entries * 8);
2173  avio_wb32(pb, atom_size); /* size */
2174  ffio_wfourcc(pb, "stts");
2175  avio_wb32(pb, 0); /* version & flags */
2176  avio_wb32(pb, entries); /* entry count */
2177  for (i = 0; i < entries; i++) {
2178  avio_wb32(pb, stts_entries[i].count);
2179  avio_wb32(pb, stts_entries[i].duration);
2180  }
2181  av_free(stts_entries);
2182  return atom_size;
2183 }
2184 
2185 static int mov_write_dref_tag(AVIOContext *pb)
2186 {
2187  avio_wb32(pb, 28); /* size */
2188  ffio_wfourcc(pb, "dref");
2189  avio_wb32(pb, 0); /* version & flags */
2190  avio_wb32(pb, 1); /* entry count */
2191 
2192  avio_wb32(pb, 0xc); /* size */
2193  //FIXME add the alis and rsrc atom
2194  ffio_wfourcc(pb, "url ");
2195  avio_wb32(pb, 1); /* version & flags */
2196 
2197  return 28;
2198 }
2199 
2200 static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
2201 {
2202  struct sgpd_entry {
2203  int count;
2204  int16_t roll_distance;
2205  int group_description_index;
2206  };
2207 
2208  struct sgpd_entry *sgpd_entries = NULL;
2209  int entries = -1;
2210  int group = 0;
2211  int i, j;
2212 
2213  const int OPUS_SEEK_PREROLL_MS = 80;
2214  int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2215  (AVRational){1, 1000},
2216  (AVRational){1, 48000});
2217 
2218  if (!track->entry)
2219  return 0;
2220 
2221  sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2222  if (!sgpd_entries)
2223  return AVERROR(ENOMEM);
2224 
2225  av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC);
2226 
2227  if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2228  for (i = 0; i < track->entry; i++) {
2229  int roll_samples_remaining = roll_samples;
2230  int distance = 0;
2231  for (j = i - 1; j >= 0; j--) {
2232  roll_samples_remaining -= get_cluster_duration(track, j);
2233  distance++;
2234  if (roll_samples_remaining <= 0)
2235  break;
2236  }
2237  /* We don't have enough preceeding samples to compute a valid
2238  roll_distance here, so this sample can't be independently
2239  decoded. */
2240  if (roll_samples_remaining > 0)
2241  distance = 0;
2242  /* Verify distance is a minimum of 2 (60ms) packets and a maximum of
2243  32 (2.5ms) packets. */
2244  av_assert0(distance == 0 || (distance >= 2 && distance <= 32));
2245  if (i && distance == sgpd_entries[entries].roll_distance) {
2246  sgpd_entries[entries].count++;
2247  } else {
2248  entries++;
2249  sgpd_entries[entries].count = 1;
2250  sgpd_entries[entries].roll_distance = distance;
2251  sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2252  }
2253  }
2254  } else {
2255  entries++;
2256  sgpd_entries[entries].count = track->sample_count;
2257  sgpd_entries[entries].roll_distance = 1;
2258  sgpd_entries[entries].group_description_index = ++group;
2259  }
2260  entries++;
2261 
2262  if (!group) {
2263  av_free(sgpd_entries);
2264  return 0;
2265  }
2266 
2267  /* Write sgpd tag */
2268  avio_wb32(pb, 24 + (group * 2)); /* size */
2269  ffio_wfourcc(pb, "sgpd");
2270  avio_wb32(pb, 1 << 24); /* fullbox */
2271  ffio_wfourcc(pb, "roll");
2272  avio_wb32(pb, 2); /* default_length */
2273  avio_wb32(pb, group); /* entry_count */
2274  for (i = 0; i < entries; i++) {
2275  if (sgpd_entries[i].group_description_index) {
2276  avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2277  }
2278  }
2279 
2280  /* Write sbgp tag */
2281  avio_wb32(pb, 20 + (entries * 8)); /* size */
2282  ffio_wfourcc(pb, "sbgp");
2283  avio_wb32(pb, 0); /* fullbox */
2284  ffio_wfourcc(pb, "roll");
2285  avio_wb32(pb, entries); /* entry_count */
2286  for (i = 0; i < entries; i++) {
2287  avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2288  avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2289  }
2290 
2291  av_free(sgpd_entries);
2292  return 0;
2293 }
2294 
2295 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2296 {
2297  int64_t pos = avio_tell(pb);
2298  int ret;
2299 
2300  avio_wb32(pb, 0); /* size */
2301  ffio_wfourcc(pb, "stbl");
2302  mov_write_stsd_tag(s, pb, mov, track);
2303  mov_write_stts_tag(pb, track);
2304  if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2305  track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2306  track->has_keyframes && track->has_keyframes < track->entry)
2307  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2308  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2309  mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2310  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2311  track->flags & MOV_TRACK_CTTS && track->entry) {
2312 
2313  if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2314  return ret;
2315  }
2316  mov_write_stsc_tag(pb, track);
2317  mov_write_stsz_tag(pb, track);
2318  mov_write_stco_tag(pb, track);
2319  if (track->cenc.aes_ctr) {
2320  ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2321  }
2322  if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2323  mov_preroll_write_stbl_atoms(pb, track);
2324  }
2325  return update_size(pb, pos);
2326 }
2327 
2328 static int mov_write_dinf_tag(AVIOContext *pb)
2329 {
2330  int64_t pos = avio_tell(pb);
2331  avio_wb32(pb, 0); /* size */
2332  ffio_wfourcc(pb, "dinf");
2333  mov_write_dref_tag(pb);
2334  return update_size(pb, pos);
2335 }
2336 
2337 static int mov_write_nmhd_tag(AVIOContext *pb)
2338 {
2339  avio_wb32(pb, 12);
2340  ffio_wfourcc(pb, "nmhd");
2341  avio_wb32(pb, 0);
2342  return 12;
2343 }
2344 
2345 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2346 {
2347  int64_t pos = avio_tell(pb);
2348  const char *font = "Lucida Grande";
2349  avio_wb32(pb, 0); /* size */
2350  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2351  avio_wb32(pb, 0); /* version & flags */
2352  avio_wb16(pb, 0); /* text font */
2353  avio_wb16(pb, 0); /* text face */
2354  avio_wb16(pb, 12); /* text size */
2355  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2356  avio_wb16(pb, 0x0000); /* text color (red) */
2357  avio_wb16(pb, 0x0000); /* text color (green) */
2358  avio_wb16(pb, 0x0000); /* text color (blue) */
2359  avio_wb16(pb, 0xffff); /* background color (red) */
2360  avio_wb16(pb, 0xffff); /* background color (green) */
2361  avio_wb16(pb, 0xffff); /* background color (blue) */
2362  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2363  avio_write(pb, font, strlen(font)); /* font name */
2364  return update_size(pb, pos);
2365 }
2366 
2367 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2368 {
2369  int64_t pos = avio_tell(pb);
2370  avio_wb32(pb, 0); /* size */
2371  ffio_wfourcc(pb, "gmhd");
2372  avio_wb32(pb, 0x18); /* gmin size */
2373  ffio_wfourcc(pb, "gmin");/* generic media info */
2374  avio_wb32(pb, 0); /* version & flags */
2375  avio_wb16(pb, 0x40); /* graphics mode = */
2376  avio_wb16(pb, 0x8000); /* opColor (r?) */
2377  avio_wb16(pb, 0x8000); /* opColor (g?) */
2378  avio_wb16(pb, 0x8000); /* opColor (b?) */
2379  avio_wb16(pb, 0); /* balance */
2380  avio_wb16(pb, 0); /* reserved */
2381 
2382  /*
2383  * This special text atom is required for
2384  * Apple Quicktime chapters. The contents
2385  * don't appear to be documented, so the
2386  * bytes are copied verbatim.
2387  */
2388  if (track->tag != MKTAG('c','6','0','8')) {
2389  avio_wb32(pb, 0x2C); /* size */
2390  ffio_wfourcc(pb, "text");
2391  avio_wb16(pb, 0x01);
2392  avio_wb32(pb, 0x00);
2393  avio_wb32(pb, 0x00);
2394  avio_wb32(pb, 0x00);
2395  avio_wb32(pb, 0x01);
2396  avio_wb32(pb, 0x00);
2397  avio_wb32(pb, 0x00);
2398  avio_wb32(pb, 0x00);
2399  avio_wb32(pb, 0x00004000);
2400  avio_wb16(pb, 0x0000);
2401  }
2402 
2403  if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2404  int64_t tmcd_pos = avio_tell(pb);
2405  avio_wb32(pb, 0); /* size */
2406  ffio_wfourcc(pb, "tmcd");
2407  mov_write_tcmi_tag(pb, track);
2408  update_size(pb, tmcd_pos);
2409  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2410  int64_t gpmd_pos = avio_tell(pb);
2411  avio_wb32(pb, 0); /* size */
2412  ffio_wfourcc(pb, "gpmd");
2413  avio_wb32(pb, 0); /* version */
2414  update_size(pb, gpmd_pos);
2415  }
2416  return update_size(pb, pos);
2417 }
2418 
2419 static int mov_write_smhd_tag(AVIOContext *pb)
2420 {
2421  avio_wb32(pb, 16); /* size */
2422  ffio_wfourcc(pb, "smhd");
2423  avio_wb32(pb, 0); /* version & flags */
2424  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2425  avio_wb16(pb, 0); /* reserved */
2426  return 16;
2427 }
2428 
2429 static int mov_write_vmhd_tag(AVIOContext *pb)
2430 {
2431  avio_wb32(pb, 0x14); /* size (always 0x14) */
2432  ffio_wfourcc(pb, "vmhd");
2433  avio_wb32(pb, 0x01); /* version & flags */
2434  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2435  return 0x14;
2436 }
2437 
2438 static int is_clcp_track(MOVTrack *track)
2439 {
2440  return track->tag == MKTAG('c','7','0','8') ||
2441  track->tag == MKTAG('c','6','0','8');
2442 }
2443 
2444 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2445 {
2446  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2447  int64_t pos = avio_tell(pb);
2448 
2449  hdlr = "dhlr";
2450  hdlr_type = "url ";
2451  descr = "DataHandler";
2452 
2453  if (track) {
2454  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2455  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2456  hdlr_type = "vide";
2457  descr = "VideoHandler";
2458  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2459  hdlr_type = "soun";
2460  descr = "SoundHandler";
2461  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2462  if (is_clcp_track(track)) {
2463  hdlr_type = "clcp";
2464  descr = "ClosedCaptionHandler";
2465  } else {
2466  if (track->tag == MKTAG('t','x','3','g')) {
2467  hdlr_type = "sbtl";
2468  } else if (track->tag == MKTAG('m','p','4','s')) {
2469  hdlr_type = "subp";
2470  } else {
2471  hdlr_type = "text";
2472  }
2473  descr = "SubtitleHandler";
2474  }
2475  } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2476  hdlr_type = "hint";
2477  descr = "HintHandler";
2478  } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2479  hdlr_type = "tmcd";
2480  descr = "TimeCodeHandler";
2481  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2482  hdlr_type = "meta";
2483  descr = "GoPro MET"; // GoPro Metadata
2484  } else {
2485  av_log(s, AV_LOG_WARNING,
2486  "Unknown hldr_type for %s, writing dummy values\n",
2487  av_fourcc2str(track->par->codec_tag));
2488  }
2489  if (track->st) {
2490  // hdlr.name is used by some players to identify the content title
2491  // of the track. So if an alternate handler description is
2492  // specified, use it.
2493  AVDictionaryEntry *t;
2494  t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2495  if (t && utf8len(t->value))
2496  descr = t->value;
2497  }
2498  }
2499 
2500  avio_wb32(pb, 0); /* size */
2501  ffio_wfourcc(pb, "hdlr");
2502  avio_wb32(pb, 0); /* Version & flags */
2503  avio_write(pb, hdlr, 4); /* handler */
2504  ffio_wfourcc(pb, hdlr_type); /* handler type */
2505  avio_wb32(pb, 0); /* reserved */
2506  avio_wb32(pb, 0); /* reserved */
2507  avio_wb32(pb, 0); /* reserved */
2508  if (!track || track->mode == MODE_MOV)
2509  avio_w8(pb, strlen(descr)); /* pascal string */
2510  avio_write(pb, descr, strlen(descr)); /* handler description */
2511  if (track && track->mode != MODE_MOV)
2512  avio_w8(pb, 0); /* c string */
2513  return update_size(pb, pos);
2514 }
2515 
2516 static int mov_write_hmhd_tag(AVIOContext *pb)
2517 {
2518  /* This atom must be present, but leaving the values at zero
2519  * seems harmless. */
2520  avio_wb32(pb, 28); /* size */
2521  ffio_wfourcc(pb, "hmhd");
2522  avio_wb32(pb, 0); /* version, flags */
2523  avio_wb16(pb, 0); /* maxPDUsize */
2524  avio_wb16(pb, 0); /* avgPDUsize */
2525  avio_wb32(pb, 0); /* maxbitrate */
2526  avio_wb32(pb, 0); /* avgbitrate */
2527  avio_wb32(pb, 0); /* reserved */
2528  return 28;
2529 }
2530 
2531 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2532 {
2533  int64_t pos = avio_tell(pb);
2534  int ret;
2535 
2536  avio_wb32(pb, 0); /* size */
2537  ffio_wfourcc(pb, "minf");
2538  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2539  mov_write_vmhd_tag(pb);
2540  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2541  mov_write_smhd_tag(pb);
2542  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2543  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2544  mov_write_gmhd_tag(pb, track);
2545  } else {
2546  mov_write_nmhd_tag(pb);
2547  }
2548  } else if (track->tag == MKTAG('r','t','p',' ')) {
2549  mov_write_hmhd_tag(pb);
2550  } else if (track->tag == MKTAG('t','m','c','d')) {
2551  if (track->mode != MODE_MOV)
2552  mov_write_nmhd_tag(pb);
2553  else
2554  mov_write_gmhd_tag(pb, track);
2555  } else if (track->tag == MKTAG('g','p','m','d')) {
2556  mov_write_gmhd_tag(pb, track);
2557  }
2558  if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2559  mov_write_hdlr_tag(s, pb, NULL);
2560  mov_write_dinf_tag(pb);
2561  if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2562  return ret;
2563  return update_size(pb, pos);
2564 }
2565 
2566 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2567  MOVTrack *track)
2568 {
2569  int version = track->track_duration < INT32_MAX ? 0 : 1;
2570 
2571  if (track->mode == MODE_ISM)
2572  version = 1;
2573 
2574  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2575  ffio_wfourcc(pb, "mdhd");
2576  avio_w8(pb, version);
2577  avio_wb24(pb, 0); /* flags */
2578  if (version == 1) {
2579  avio_wb64(pb, track->time);
2580  avio_wb64(pb, track->time);
2581  } else {
2582  avio_wb32(pb, track->time); /* creation time */
2583  avio_wb32(pb, track->time); /* modification time */
2584  }
2585  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2586  if (!track->entry && mov->mode == MODE_ISM)
2587  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2588  else if (!track->entry)
2589  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2590  else
2591  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2592  avio_wb16(pb, track->language); /* language */
2593  avio_wb16(pb, 0); /* reserved (quality) */
2594 
2595  if (version != 0 && track->mode == MODE_MOV) {
2596  av_log(NULL, AV_LOG_ERROR,
2597  "FATAL error, file duration too long for timebase, this file will not be\n"
2598  "playable with quicktime. Choose a different timebase or a different\n"
2599  "container format\n");
2600  }
2601 
2602  return 32;
2603 }
2604 
2605 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2606  MOVMuxContext *mov, MOVTrack *track)
2607 {
2608  int64_t pos = avio_tell(pb);
2609  int ret;
2610 
2611  avio_wb32(pb, 0); /* size */
2612  ffio_wfourcc(pb, "mdia");
2613  mov_write_mdhd_tag(pb, mov, track);
2614  mov_write_hdlr_tag(s, pb, track);
2615  if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2616  return ret;
2617  return update_size(pb, pos);
2618 }
2619 
2620 /* transformation matrix
2621  |a b u|
2622  |c d v|
2623  |tx ty w| */
2624 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2625  int16_t d, int16_t tx, int16_t ty)
2626 {
2627  avio_wb32(pb, a << 16); /* 16.16 format */
2628  avio_wb32(pb, b << 16); /* 16.16 format */
2629  avio_wb32(pb, 0); /* u in 2.30 format */
2630  avio_wb32(pb, c << 16); /* 16.16 format */
2631  avio_wb32(pb, d << 16); /* 16.16 format */
2632  avio_wb32(pb, 0); /* v in 2.30 format */
2633  avio_wb32(pb, tx << 16); /* 16.16 format */
2634  avio_wb32(pb, ty << 16); /* 16.16 format */
2635  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2636 }
2637 
2638 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2639  MOVTrack *track, AVStream *st)
2640 {
2641  int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2642  track->timescale, AV_ROUND_UP);
2643  int version = duration < INT32_MAX ? 0 : 1;
2644  int flags = MOV_TKHD_FLAG_IN_MOVIE;
2645  int rotation = 0;
2646  int group = 0;
2647 
2648  uint32_t *display_matrix = NULL;
2649  int display_matrix_size, i;
2650 
2651  if (st) {
2652  if (mov->per_stream_grouping)
2653  group = st->index;
2654  else
2655  group = st->codecpar->codec_type;
2656 
2657  display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2658  &display_matrix_size);
2659  if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2660  display_matrix = NULL;
2661  }
2662 
2663  if (track->flags & MOV_TRACK_ENABLED)
2664  flags |= MOV_TKHD_FLAG_ENABLED;
2665 
2666  if (track->mode == MODE_ISM)
2667  version = 1;
2668 
2669  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2670  ffio_wfourcc(pb, "tkhd");
2671  avio_w8(pb, version);
2672  avio_wb24(pb, flags);
2673  if (version == 1) {
2674  avio_wb64(pb, track->time);
2675  avio_wb64(pb, track->time);
2676  } else {
2677  avio_wb32(pb, track->time); /* creation time */
2678  avio_wb32(pb, track->time); /* modification time */
2679  }
2680  avio_wb32(pb, track->track_id); /* track-id */
2681  avio_wb32(pb, 0); /* reserved */
2682  if (!track->entry && mov->mode == MODE_ISM)
2683  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2684  else if (!track->entry)
2685  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2686  else
2687  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2688 
2689  avio_wb32(pb, 0); /* reserved */
2690  avio_wb32(pb, 0); /* reserved */
2691  avio_wb16(pb, 0); /* layer */
2692  avio_wb16(pb, group); /* alternate group) */
2693  /* Volume, only for audio */
2694  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2695  avio_wb16(pb, 0x0100);
2696  else
2697  avio_wb16(pb, 0);
2698  avio_wb16(pb, 0); /* reserved */
2699 
2700  /* Matrix structure */
2701 #if FF_API_OLD_ROTATE_API
2702  if (st && st->metadata) {
2703  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2704  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2705  }
2706 #endif
2707  if (display_matrix) {
2708  for (i = 0; i < 9; i++)
2709  avio_wb32(pb, display_matrix[i]);
2710 #if FF_API_OLD_ROTATE_API
2711  } else if (rotation == 90) {
2712  write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2713  } else if (rotation == 180) {
2714  write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2715  } else if (rotation == 270) {
2716  write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2717 #endif
2718  } else {
2719  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2720  }
2721  /* Track width and height, for visual only */
2722  if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2723  track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2724  int64_t track_width_1616;
2725  if (track->mode == MODE_MOV) {
2726  track_width_1616 = track->par->width * 0x10000ULL;
2727  } else {
2728  track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2729  track->par->width * 0x10000LL,
2730  st->sample_aspect_ratio.den);
2731  if (!track_width_1616 ||
2732  track->height != track->par->height ||
2733  track_width_1616 > UINT32_MAX)
2734  track_width_1616 = track->par->width * 0x10000ULL;
2735  }
2736  if (track_width_1616 > UINT32_MAX) {
2737  av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
2738  track_width_1616 = 0;
2739  }
2740  avio_wb32(pb, track_width_1616);
2741  if (track->height > 0xFFFF) {
2742  av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
2743  avio_wb32(pb, 0);
2744  } else
2745  avio_wb32(pb, track->height * 0x10000U);
2746  } else {
2747  avio_wb32(pb, 0);
2748  avio_wb32(pb, 0);
2749  }
2750  return 0x5c;
2751 }
2752 
2753 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2754 {
2755  int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
2756  track->par->sample_aspect_ratio.den);
2757 
2758  int64_t pos = avio_tell(pb);
2759 
2760  avio_wb32(pb, 0); /* size */
2761  ffio_wfourcc(pb, "tapt");
2762 
2763  avio_wb32(pb, 20);
2764  ffio_wfourcc(pb, "clef");
2765  avio_wb32(pb, 0);
2766  avio_wb32(pb, width << 16);
2767  avio_wb32(pb, track->par->height << 16);
2768 
2769  avio_wb32(pb, 20);
2770  ffio_wfourcc(pb, "prof");
2771  avio_wb32(pb, 0);
2772  avio_wb32(pb, width << 16);
2773  avio_wb32(pb, track->par->height << 16);
2774 
2775  avio_wb32(pb, 20);
2776  ffio_wfourcc(pb, "enof");
2777  avio_wb32(pb, 0);
2778  avio_wb32(pb, track->par->width << 16);
2779  avio_wb32(pb, track->par->height << 16);
2780 
2781  return update_size(pb, pos);
2782 }
2783 
2784 // This box seems important for the psp playback ... without it the movie seems to hang
2785 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2786  MOVTrack *track)
2787 {
2788  int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2789  track->timescale, AV_ROUND_UP);
2790  int version = duration < INT32_MAX ? 0 : 1;
2791  int entry_size, entry_count, size;
2792  int64_t delay, start_ct = track->start_cts;
2793  int64_t start_dts = track->start_dts;
2794 
2795  if (track->entry) {
2796  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2797 
2798  av_log(mov->fc, AV_LOG_DEBUG,
2799  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2800  track->cluster[0].dts, track->cluster[0].cts,
2801  start_dts, start_ct, track->track_id);
2802  start_dts = track->cluster[0].dts;
2803  start_ct = track->cluster[0].cts;
2804  }
2805  }
2806 
2807  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2808  track->timescale, AV_ROUND_DOWN);
2809  version |= delay < INT32_MAX ? 0 : 1;
2810 
2811  entry_size = (version == 1) ? 20 : 12;
2812  entry_count = 1 + (delay > 0);
2813  size = 24 + entry_count * entry_size;
2814 
2815  /* write the atom data */
2816  avio_wb32(pb, size);
2817  ffio_wfourcc(pb, "edts");
2818  avio_wb32(pb, size - 8);
2819  ffio_wfourcc(pb, "elst");
2820  avio_w8(pb, version);
2821  avio_wb24(pb, 0); /* flags */
2822 
2823  avio_wb32(pb, entry_count);
2824  if (delay > 0) { /* add an empty edit to delay presentation */
2825  /* In the positive delay case, the delay includes the cts
2826  * offset, and the second edit list entry below trims out
2827  * the same amount from the actual content. This makes sure
2828  * that the offset last sample is included in the edit
2829  * list duration as well. */
2830  if (version == 1) {
2831  avio_wb64(pb, delay);
2832  avio_wb64(pb, -1);
2833  } else {
2834  avio_wb32(pb, delay);
2835  avio_wb32(pb, -1);
2836  }
2837  avio_wb32(pb, 0x00010000);
2838  } else {
2839  /* Avoid accidentally ending up with start_ct = -1 which has got a
2840  * special meaning. Normally start_ct should end up positive or zero
2841  * here, but use FFMIN in case dts is a small positive integer
2842  * rounded to 0 when represented in MOV_TIMESCALE units. */
2843  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2844  start_ct = -FFMIN(start_dts, 0);
2845  /* Note, this delay is calculated from the pts of the first sample,
2846  * ensuring that we don't reduce the duration for cases with
2847  * dts<0 pts=0. */
2848  duration += delay;
2849  }
2850 
2851  /* For fragmented files, we don't know the full length yet. Setting
2852  * duration to 0 allows us to only specify the offset, including
2853  * the rest of the content (from all future fragments) without specifying
2854  * an explicit duration. */
2855  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2856  duration = 0;
2857 
2858  /* duration */
2859  if (version == 1) {
2860  avio_wb64(pb, duration);
2861  avio_wb64(pb, start_ct);
2862  } else {
2863  avio_wb32(pb, duration);
2864  avio_wb32(pb, start_ct);
2865  }
2866  avio_wb32(pb, 0x00010000);
2867  return size;
2868 }
2869 
2870 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2871 {
2872  avio_wb32(pb, 20); // size
2873  ffio_wfourcc(pb, "tref");
2874  avio_wb32(pb, 12); // size (subatom)
2875  avio_wl32(pb, track->tref_tag);
2876  avio_wb32(pb, track->tref_id);
2877  return 20;
2878 }
2879 
2880 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2881 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2882 {
2883  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2884  ffio_wfourcc(pb, "uuid");
2885  ffio_wfourcc(pb, "USMT");
2886  avio_wb32(pb, 0x21d24fce);
2887  avio_wb32(pb, 0xbb88695c);
2888  avio_wb32(pb, 0xfac9c740);
2889  avio_wb32(pb, 0x1c); // another size here!
2890  ffio_wfourcc(pb, "MTDT");
2891  avio_wb32(pb, 0x00010012);
2892  avio_wb32(pb, 0x0a);
2893  avio_wb32(pb, 0x55c40000);
2894  avio_wb32(pb, 0x1);
2895  avio_wb32(pb, 0x0);
2896  return 0x34;
2897 }
2898 
2899 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2900 {
2901  AVFormatContext *ctx = track->rtp_ctx;
2902  char buf[1000] = "";
2903  int len;
2904 
2905  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2906  NULL, NULL, 0, 0, ctx);
2907  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2908  len = strlen(buf);
2909 
2910  avio_wb32(pb, len + 24);
2911  ffio_wfourcc(pb, "udta");
2912  avio_wb32(pb, len + 16);
2913  ffio_wfourcc(pb, "hnti");
2914  avio_wb32(pb, len + 8);
2915  ffio_wfourcc(pb, "sdp ");
2916  avio_write(pb, buf, len);
2917  return len + 24;
2918 }
2919 
2920 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2921  const char *tag, const char *str)
2922 {
2923  int64_t pos = avio_tell(pb);
2924  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2925  if (!t || !utf8len(t->value))
2926  return 0;
2927 
2928  avio_wb32(pb, 0); /* size */
2929  ffio_wfourcc(pb, tag); /* type */
2930  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2931  return update_size(pb, pos);
2932 }
2933 
2934 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2935  AVStream *st)
2936 {
2937  AVIOContext *pb_buf;
2938  int ret, size;
2939  uint8_t *buf;
2940 
2941  if (!st)
2942  return 0;
2943 
2944  ret = avio_open_dyn_buf(&pb_buf);
2945  if (ret < 0)
2946  return ret;
2947 
2948  if (mov->mode & MODE_MP4)
2949  mov_write_track_metadata(pb_buf, st, "name", "title");
2950 
2951  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2952  avio_wb32(pb, size + 8);
2953  ffio_wfourcc(pb, "udta");
2954  avio_write(pb, buf, size);
2955  }
2956  av_free(buf);
2957 
2958  return 0;
2959 }
2960 
2961 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
2962  MOVTrack *track, AVStream *st)
2963 {
2964  int64_t pos = avio_tell(pb);
2965  int entry_backup = track->entry;
2966  int chunk_backup = track->chunkCount;
2967  int ret;
2968 
2969  /* If we want to have an empty moov, but some samples already have been
2970  * buffered (delay_moov), pretend that no samples have been written yet. */
2971  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2972  track->chunkCount = track->entry = 0;
2973 
2974  avio_wb32(pb, 0); /* size */
2975  ffio_wfourcc(pb, "trak");
2976  mov_write_tkhd_tag(pb, mov, track, st);
2977 
2978  av_assert2(mov->use_editlist >= 0);
2979 
2980  if (track->start_dts != AV_NOPTS_VALUE) {
2981  if (mov->use_editlist)
2982  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2983  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2984  av_log(mov->fc, AV_LOG_WARNING,
2985  "Not writing any edit list even though one would have been required\n");
2986  }
2987 
2988  if (track->tref_tag)
2989  mov_write_tref_tag(pb, track);
2990 
2991  if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
2992  return ret;
2993  if (track->mode == MODE_PSP)
2994  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2995  if (track->tag == MKTAG('r','t','p',' '))
2996  mov_write_udta_sdp(pb, track);
2997  if (track->mode == MODE_MOV) {
2998  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2999  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3000  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3001  mov_write_tapt_tag(pb, track);
3002  }
3003  }
3004  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3005  mov_write_tapt_tag(pb, track);
3006  }
3007  }
3008  mov_write_track_udta_tag(pb, mov, st);
3009  track->entry = entry_backup;
3010  track->chunkCount = chunk_backup;
3011  return update_size(pb, pos);
3012 }
3013 
3014 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
3015 {
3016  int i, has_audio = 0, has_video = 0;
3017  int64_t pos = avio_tell(pb);
3018  int audio_profile = mov->iods_audio_profile;
3019  int video_profile = mov->iods_video_profile;
3020  for (i = 0; i < mov->nb_streams; i++) {
3021  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3022  has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3023  has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3024  }
3025  }
3026  if (audio_profile < 0)
3027  audio_profile = 0xFF - has_audio;
3028  if (video_profile < 0)
3029  video_profile = 0xFF - has_video;
3030  avio_wb32(pb, 0x0); /* size */
3031  ffio_wfourcc(pb, "iods");
3032  avio_wb32(pb, 0); /* version & flags */
3033  put_descr(pb, 0x10, 7);
3034  avio_wb16(pb, 0x004f);
3035  avio_w8(pb, 0xff);
3036  avio_w8(pb, 0xff);
3037  avio_w8(pb, audio_profile);
3038  avio_w8(pb, video_profile);
3039  avio_w8(pb, 0xff);
3040  return update_size(pb, pos);
3041 }
3042 
3043 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3044 {
3045  avio_wb32(pb, 0x20); /* size */
3046  ffio_wfourcc(pb, "trex");
3047  avio_wb32(pb, 0); /* version & flags */
3048  avio_wb32(pb, track->track_id); /* track ID */
3049  avio_wb32(pb, 1); /* default sample description index */
3050  avio_wb32(pb, 0); /* default sample duration */
3051  avio_wb32(pb, 0); /* default sample size */
3052  avio_wb32(pb, 0); /* default sample flags */
3053  return 0;
3054 }
3055 
3056 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
3057 {
3058  int64_t pos = avio_tell(pb);
3059  int i;
3060  avio_wb32(pb, 0x0); /* size */
3061  ffio_wfourcc(pb, "mvex");
3062  for (i = 0; i < mov->nb_streams; i++)
3063  mov_write_trex_tag(pb, &mov->tracks[i]);
3064  return update_size(pb, pos);
3065 }
3066 
3067 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3068 {
3069  int max_track_id = 1, i;
3070  int64_t max_track_len = 0;
3071  int version;
3072 
3073  for (i = 0; i < mov->nb_streams; i++) {
3074  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3075  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
3076  MOV_TIMESCALE,
3077  mov->tracks[i].timescale,
3078  AV_ROUND_UP);
3079  if (max_track_len < max_track_len_temp)
3080  max_track_len = max_track_len_temp;
3081  if (max_track_id < mov->tracks[i].track_id)
3082  max_track_id = mov->tracks[i].track_id;
3083  }
3084  }
3085  /* If using delay_moov, make sure the output is the same as if no
3086  * samples had been written yet. */
3087  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3088  max_track_len = 0;
3089  max_track_id = 1;
3090  }
3091 
3092  version = max_track_len < UINT32_MAX ? 0 : 1;
3093  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3094 
3095  ffio_wfourcc(pb, "mvhd");
3096  avio_w8(pb, version);
3097  avio_wb24(pb, 0); /* flags */
3098  if (version == 1) {
3099  avio_wb64(pb, mov->time);
3100  avio_wb64(pb, mov->time);
3101  } else {
3102  avio_wb32(pb, mov->time); /* creation time */
3103  avio_wb32(pb, mov->time); /* modification time */
3104  }
3105  avio_wb32(pb, MOV_TIMESCALE);
3106  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3107 
3108  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3109  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3110  avio_wb16(pb, 0); /* reserved */
3111  avio_wb32(pb, 0); /* reserved */
3112  avio_wb32(pb, 0); /* reserved */
3113 
3114  /* Matrix structure */
3115  write_matrix(pb, 1, 0, 0, 1, 0, 0);
3116 
3117  avio_wb32(pb, 0); /* reserved (preview time) */
3118  avio_wb32(pb, 0); /* reserved (preview duration) */
3119  avio_wb32(pb, 0); /* reserved (poster time) */
3120  avio_wb32(pb, 0); /* reserved (selection time) */
3121  avio_wb32(pb, 0); /* reserved (selection duration) */
3122  avio_wb32(pb, 0); /* reserved (current time) */
3123  avio_wb32(pb, max_track_id + 1); /* Next track id */
3124  return 0x6c;
3125 }
3126 
3127 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3128  AVFormatContext *s)
3129 {
3130  avio_wb32(pb, 33); /* size */
3131  ffio_wfourcc(pb, "hdlr");
3132  avio_wb32(pb, 0);
3133  avio_wb32(pb, 0);
3134  ffio_wfourcc(pb, "mdir");
3135  ffio_wfourcc(pb, "appl");
3136  avio_wb32(pb, 0);
3137  avio_wb32(pb, 0);
3138  avio_w8(pb, 0);
3139  return 33;
3140 }
3141 
3142 /* helper function to write a data tag with the specified string as data */
3143 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3144 {
3145  if (long_style) {
3146  int size = 16 + strlen(data);
3147  avio_wb32(pb, size); /* size */
3148  ffio_wfourcc(pb, "data");
3149  avio_wb32(pb, 1);
3150  avio_wb32(pb, 0);
3151  avio_write(pb, data, strlen(data));
3152  return size;
3153  } else {
3154  if (!lang)
3155  lang = ff_mov_iso639_to_lang("und", 1);
3156  avio_wb16(pb, strlen(data)); /* string length */
3157  avio_wb16(pb, lang);
3158  avio_write(pb, data, strlen(data));
3159  return strlen(data) + 4;
3160  }
3161 }
3162 
3163 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3164  const char *value, int lang, int long_style)
3165 {
3166  int size = 0;
3167  if (value && value[0]) {
3168  int64_t pos = avio_tell(pb);
3169  avio_wb32(pb, 0); /* size */
3170  ffio_wfourcc(pb, name);
3171  mov_write_string_data_tag(pb, value, lang, long_style);
3172  size = update_size(pb, pos);
3173  }
3174  return size;
3175 }
3176 
3177 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
3178  const char *tag, int *lang)
3179 {
3180  int l, len, len2;
3181  AVDictionaryEntry *t, *t2 = NULL;
3182  char tag2[16];
3183 
3184  *lang = 0;
3185 
3186  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3187  return NULL;
3188 
3189  len = strlen(t->key);
3190  snprintf(tag2, sizeof(tag2), "%s-", tag);
3191  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3192  len2 = strlen(t2->key);
3193  if (len2 == len + 4 && !strcmp(t->value, t2->value)
3194  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3195  *lang = l;
3196  return t;
3197  }
3198  }
3199  return t;
3200 }
3201 
3202 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
3203  const char *name, const char *tag,
3204  int long_style)
3205 {
3206  int lang;
3207  AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3208  if (!t)
3209  return 0;
3210  return mov_write_string_tag(pb, name, t->value, lang, long_style);
3211 }
3212 
3213 /* iTunes bpm number */
3214 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
3215 {
3216  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3217  int size = 0, tmpo = t ? atoi(t->value) : 0;
3218  if (tmpo) {
3219  size = 26;
3220  avio_wb32(pb, size);
3221  ffio_wfourcc(pb, "tmpo");
3222  avio_wb32(pb, size-8); /* size */
3223  ffio_wfourcc(pb, "data");
3224  avio_wb32(pb, 0x15); //type specifier
3225  avio_wb32(pb, 0);
3226  avio_wb16(pb, tmpo); // data
3227  }
3228  return size;
3229 }
3230 
3231 /* 3GPP TS 26.244 */
3232 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
3233 {
3234  int lang;
3235  int64_t pos = avio_tell(pb);
3236  double latitude, longitude, altitude;
3237  int32_t latitude_fix, longitude_fix, altitude_fix;
3238  AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3239  const char *ptr, *place = "";
3240  char *end;
3241  static const char *astronomical_body = "earth";
3242  if (!t)
3243  return 0;
3244 
3245  ptr = t->value;
3246  longitude = strtod(ptr, &end);
3247  if (end == ptr) {
3248  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3249  return 0;
3250  }
3251  ptr = end;
3252  latitude = strtod(ptr, &end);
3253  if (end == ptr) {
3254  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3255  return 0;
3256  }
3257  ptr = end;
3258  altitude = strtod(ptr, &end);
3259  /* If no altitude was present, the default 0 should be fine */
3260  if (*end == '/')
3261  place = end + 1;
3262 
3263  latitude_fix = (int32_t) ((1 << 16) * latitude);
3264  longitude_fix = (int32_t) ((1 << 16) * longitude);
3265  altitude_fix = (int32_t) ((1 << 16) * altitude);
3266 
3267  avio_wb32(pb, 0); /* size */
3268  ffio_wfourcc(pb, "loci"); /* type */
3269  avio_wb32(pb, 0); /* version + flags */
3270  avio_wb16(pb, lang);
3271  avio_write(pb, place, strlen(place) + 1);
3272  avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3273  avio_wb32(pb, latitude_fix);
3274  avio_wb32(pb, longitude_fix);
3275  avio_wb32(pb, altitude_fix);
3276  avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3277  avio_w8(pb, 0); /* additional notes, null terminated string */
3278 
3279  return update_size(pb, pos);
3280 }
3281 
3282 /* iTunes track or disc number */
3283 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
3284  AVFormatContext *s, int disc)
3285 {
3286  AVDictionaryEntry *t = av_dict_get(s->metadata,
3287  disc ? "disc" : "track",
3288  NULL, 0);
3289  int size = 0, track = t ? atoi(t->value) : 0;
3290  if (track) {
3291  int tracks = 0;
3292  char *slash = strchr(t->value, '/');
3293  if (slash)
3294  tracks = atoi(slash + 1);
3295  avio_wb32(pb, 32); /* size */
3296  ffio_wfourcc(pb, disc ? "disk" : "trkn");
3297  avio_wb32(pb, 24); /* size */
3298  ffio_wfourcc(pb, "data");
3299  avio_wb32(pb, 0); // 8 bytes empty
3300  avio_wb32(pb, 0);
3301  avio_wb16(pb, 0); // empty
3302  avio_wb16(pb, track); // track / disc number
3303  avio_wb16(pb, tracks); // total track / disc number
3304  avio_wb16(pb, 0); // empty
3305  size = 32;
3306  }
3307  return size;
3308 }
3309 
3310 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
3311  const char *name, const char *tag,
3312  int len)
3313 {
3314  AVDictionaryEntry *t = NULL;
3315  uint8_t num;
3316  int size = 24 + len;
3317 
3318  if (len != 1 && len != 4)
3319  return -1;
3320 
3321  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3322  return 0;
3323  num = atoi(t->value);
3324 
3325  avio_wb32(pb, size);
3326  ffio_wfourcc(pb, name);
3327  avio_wb32(pb, size - 8);
3328  ffio_wfourcc(pb, "data");
3329  avio_wb32(pb, 0x15);
3330  avio_wb32(pb, 0);
3331  if (len==4) avio_wb32(pb, num);
3332  else avio_w8 (pb, num);
3333 
3334  return size;
3335 }
3336 
3337 /* iTunes meta data list */
3338 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3339  AVFormatContext *s)
3340 {
3341  int64_t pos = avio_tell(pb);
3342  avio_wb32(pb, 0); /* size */
3343  ffio_wfourcc(pb, "ilst");
3344  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3345  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3346  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3347  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3348  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3349  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3350  if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3351  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3352  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3353  }
3354  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3355  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3356  mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
3357  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3358  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3359  mov_write_string_metadata(s, pb, "desc", "description",1);
3360  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3361  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3362  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3363  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3364  mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3365  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3366  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3367  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3368  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3369  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3370  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3371  mov_write_trkn_tag(pb, mov, s, 0); // track number
3372  mov_write_trkn_tag(pb, mov, s, 1); // disc number
3373  mov_write_tmpo_tag(pb, s);
3374  return update_size(pb, pos);
3375 }
3376 
3377 static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3378  AVFormatContext *s)
3379 {
3380  avio_wb32(pb, 33); /* size */
3381  ffio_wfourcc(pb, "hdlr");
3382  avio_wb32(pb, 0);
3383  avio_wb32(pb, 0);
3384  ffio_wfourcc(pb, "mdta");
3385  avio_wb32(pb, 0);
3386  avio_wb32(pb, 0);
3387  avio_wb32(pb, 0);
3388  avio_w8(pb, 0);
3389  return 33;
3390 }
3391 
3392 static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov,
3393  AVFormatContext *s)
3394 {
3395  AVDictionaryEntry *t = NULL;
3396  int64_t pos = avio_tell(pb);
3397  int64_t curpos, entry_pos;
3398  int count = 0;
3399 
3400  avio_wb32(pb, 0); /* size */
3401  ffio_wfourcc(pb, "keys");
3402  avio_wb32(pb, 0);
3403  entry_pos = avio_tell(pb);
3404  avio_wb32(pb, 0); /* entry count */
3405 
3406  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3407  avio_wb32(pb, strlen(t->key) + 8);
3408  ffio_wfourcc(pb, "mdta");
3409  avio_write(pb, t->key, strlen(t->key));
3410  count += 1;
3411  }
3412  curpos = avio_tell(pb);
3413  avio_seek(pb, entry_pos, SEEK_SET);
3414  avio_wb32(pb, count); // rewrite entry count
3415  avio_seek(pb, curpos, SEEK_SET);
3416 
3417  return update_size(pb, pos);
3418 }
3419 
3420 static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3421  AVFormatContext *s)
3422 {
3423  AVDictionaryEntry *t = NULL;
3424  int64_t pos = avio_tell(pb);
3425  int count = 1; /* keys are 1-index based */
3426 
3427  avio_wb32(pb, 0); /* size */
3428  ffio_wfourcc(pb, "ilst");
3429 
3430  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3431  int64_t entry_pos = avio_tell(pb);
3432  avio_wb32(pb, 0); /* size */
3433  avio_wb32(pb, count); /* key */
3434  mov_write_string_data_tag(pb, t->value, 0, 1);
3435  update_size(pb, entry_pos);
3436  count += 1;
3437  }
3438  return update_size(pb, pos);
3439 }
3440 
3441 /* meta data tags */
3442 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3443  AVFormatContext *s)
3444 {
3445  int size = 0;
3446  int64_t pos = avio_tell(pb);
3447  avio_wb32(pb, 0); /* size */
3448  ffio_wfourcc(pb, "meta");
3449  avio_wb32(pb, 0);
3450  if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3451  mov_write_mdta_hdlr_tag(pb, mov, s);
3452  mov_write_mdta_keys_tag(pb, mov, s);
3453  mov_write_mdta_ilst_tag(pb, mov, s);
3454  }
3455  else {
3456  /* iTunes metadata tag */
3457  mov_write_itunes_hdlr_tag(pb, mov, s);
3458  mov_write_ilst_tag(pb, mov, s);
3459  }
3460  size = update_size(pb, pos);
3461  return size;
3462 }
3463 
3464 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3465  const char *name, const char *key)
3466 {
3467  int len;
3468  AVDictionaryEntry *t;
3469 
3470  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3471  return 0;
3472 
3473  len = strlen(t->value);
3474  if (len > 0) {
3475  int size = len + 8;
3476  avio_wb32(pb, size);
3477  ffio_wfourcc(pb, name);
3478  avio_write(pb, t->value, len);
3479  return size;
3480  }
3481  return 0;
3482 }
3483 
3484 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3485 {
3486  int val;
3487  while (*b) {
3488  GET_UTF8(val, *b++, return -1;)
3489  avio_wb16(pb, val);
3490  }
3491  avio_wb16(pb, 0x00);
3492  return 0;
3493 }
3494 
3495 static uint16_t language_code(const char *str)
3496 {
3497  return (((str[0] - 0x60) & 0x1F) << 10) +
3498  (((str[1] - 0x60) & 0x1F) << 5) +
3499  (( str[2] - 0x60) & 0x1F);
3500 }
3501 
3502 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3503  const char *tag, const char *str)
3504 {
3505  int64_t pos = avio_tell(pb);
3506  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3507  if (!t || !utf8len(t->value))
3508  return 0;
3509  avio_wb32(pb, 0); /* size */
3510  ffio_wfourcc(pb, tag); /* type */
3511  avio_wb32(pb, 0); /* version + flags */
3512  if (!strcmp(tag, "yrrc"))
3513  avio_wb16(pb, atoi(t->value));
3514  else {
3515  avio_wb16(pb, language_code("eng")); /* language */
3516  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3517  if (!strcmp(tag, "albm") &&
3518  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3519  avio_w8(pb, atoi(t->value));
3520  }
3521  return update_size(pb, pos);
3522 }
3523 
3524 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3525 {
3526  int64_t pos = avio_tell(pb);
3527  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3528 
3529  avio_wb32(pb, 0); // size
3530  ffio_wfourcc(pb, "chpl");
3531  avio_wb32(pb, 0x01000000); // version + flags
3532  avio_wb32(pb, 0); // unknown
3533  avio_w8(pb, nb_chapters);
3534 
3535  for (i = 0; i < nb_chapters; i++) {
3536  AVChapter *c = s->chapters[i];
3537  AVDictionaryEntry *t;
3538  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3539 
3540  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3541  int len = FFMIN(strlen(t->value), 255);
3542  avio_w8(pb, len);
3543  avio_write(pb, t->value, len);
3544  } else
3545  avio_w8(pb, 0);
3546  }
3547  return update_size(pb, pos);
3548 }
3549 
3550 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3551  AVFormatContext *s)
3552 {
3553  AVIOContext *pb_buf;
3554  int ret, size;
3555  uint8_t *buf;
3556 
3557  ret = avio_open_dyn_buf(&pb_buf);
3558  if (ret < 0)
3559  return ret;
3560 
3561  if (mov->mode & MODE_3GP) {
3562  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3563  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3564  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3565  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3566  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3567  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3568  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3569  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3570  mov_write_loci_tag(s, pb_buf);
3571  } else if (mov->mode == MODE_MOV && !(mov->flags & FF_MOV_FLAG_USE_MDTA)) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3572  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3573  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3574  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3575  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3576  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3577  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3578  // currently ignored by mov.c
3579  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3580  // add support for libquicktime, this atom is also actually read by mov.c
3581  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3582  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3583  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3584  mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3585  mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3586  mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3587  mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
3588  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3589  } else {
3590  /* iTunes meta data */
3591  mov_write_meta_tag(pb_buf, mov, s);
3592  mov_write_loci_tag(s, pb_buf);
3593  }
3594 
3595  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3596  mov_write_chpl_tag(pb_buf, s);
3597 
3598  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3599  avio_wb32(pb, size + 8);
3600  ffio_wfourcc(pb, "udta");
3601  avio_write(pb, buf, size);
3602  }
3603  av_free(buf);
3604 
3605  return 0;
3606 }
3607 
3608 static void mov_write_psp_udta_tag(AVIOContext *pb,
3609  const char *str, const char *lang, int type)
3610 {
3611  int len = utf8len(str) + 1;
3612  if (len <= 0)
3613  return;
3614  avio_wb16(pb, len * 2 + 10); /* size */
3615  avio_wb32(pb, type); /* type */
3616  avio_wb16(pb, language_code(lang)); /* language */
3617  avio_wb16(pb, 0x01); /* ? */
3618  ascii_to_wc(pb, str);
3619 }
3620 
3621 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3622 {
3623  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3624  int64_t pos, pos2;
3625 
3626  if (title) {
3627  pos = avio_tell(pb);
3628  avio_wb32(pb, 0); /* size placeholder*/
3629  ffio_wfourcc(pb, "uuid");
3630  ffio_wfourcc(pb, "USMT");
3631  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3632  avio_wb32(pb, 0xbb88695c);
3633  avio_wb32(pb, 0xfac9c740);
3634 
3635  pos2 = avio_tell(pb);
3636  avio_wb32(pb, 0); /* size placeholder*/
3637  ffio_wfourcc(pb, "MTDT");
3638  avio_wb16(pb, 4);
3639 
3640  // ?
3641  avio_wb16(pb, 0x0C); /* size */
3642  avio_wb32(pb, 0x0B); /* type */
3643  avio_wb16(pb, language_code("und")); /* language */
3644  avio_wb16(pb, 0x0); /* ? */
3645  avio_wb16(pb, 0x021C); /* data */
3646 
3647  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3648  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3649  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3650  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3651 
3652  update_size(pb, pos2);
3653  return update_size(pb, pos);
3654  }
3655 
3656  return 0;
3657 }
3658 
3659 static void build_chunks(MOVTrack *trk)
3660 {
3661  int i;
3662  MOVIentry *chunk = &trk->cluster[0];
3663  uint64_t chunkSize = chunk->size;
3664  chunk->chunkNum = 1;
3665  if (trk->chunkCount)
3666  return;
3667  trk->chunkCount = 1;
3668  for (i = 1; i<trk->entry; i++){
3669  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3670  chunkSize + trk->cluster[i].size < (1<<20)){
3671  chunkSize += trk->cluster[i].size;
3672  chunk->samples_in_chunk += trk->cluster[i].entries;
3673  } else {
3674  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3675  chunk=&trk->cluster[i];
3676  chunkSize = chunk->size;
3677  trk->chunkCount++;
3678  }
3679  }
3680 }
3681 
3682 /**
3683  * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
3684  * the stream ids are used as track ids.
3685  *
3686  * This assumes mov->tracks and s->streams are in the same order and
3687  * there are no gaps in either of them (so mov->tracks[n] refers to
3688  * s->streams[n]).
3689  *
3690  * As an exception, there can be more entries in
3691  * s->streams than in mov->tracks, in which case new track ids are
3692  * generated (starting after the largest found stream id).
3693  */
3694 static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
3695 {
3696  int i;
3697 
3698  if (mov->track_ids_ok)
3699  return 0;
3700 
3701  if (mov->use_stream_ids_as_track_ids) {
3702  int next_generated_track_id = 0;
3703  for (i = 0; i < s->nb_streams; i++) {
3704  if (s->streams[i]->id > next_generated_track_id)
3705  next_generated_track_id = s->streams[i]->id;
3706  }
3707 
3708  for (i = 0; i < mov->nb_streams; i++) {
3709  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3710  continue;
3711 
3712  mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
3713  }
3714  } else {
3715  for (i = 0; i < mov->nb_streams; i++) {
3716  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3717  continue;
3718 
3719  mov->tracks[i].track_id = i + 1;
3720  }
3721  }
3722 
3723  mov->track_ids_ok = 1;
3724 
3725  return 0;
3726 }
3727 
3728 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3729  AVFormatContext *s)
3730 {
3731  int i;
3732  int64_t pos = avio_tell(pb);
3733  avio_wb32(pb, 0); /* size placeholder*/
3734  ffio_wfourcc(pb, "moov");
3735 
3736  mov_setup_track_ids(mov, s);
3737 
3738  for (i = 0; i < mov->nb_streams; i++) {
3739  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3740  continue;
3741 
3742  mov->tracks[i].time = mov->time;
3743 
3744  if (mov->tracks[i].entry)
3745  build_chunks(&mov->tracks[i]);
3746  }
3747 
3748  if (mov->chapter_track)
3749  for (i = 0; i < s->nb_streams; i++) {
3750  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3751  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3752  }
3753  for (i = 0; i < mov->nb_streams; i++) {
3754  MOVTrack *track = &mov->tracks[i];
3755  if (track->tag == MKTAG('r','t','p',' ')) {
3756  track->tref_tag = MKTAG('h','i','n','t');
3757  track->tref_id = mov->tracks[track->src_track].track_id;
3758  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3759  int * fallback, size;
3760  fallback = (int*)av_stream_get_side_data(track->st,
3761  AV_PKT_DATA_FALLBACK_TRACK,
3762  &size);
3763  if (fallback != NULL && size == sizeof(int)) {
3764  if (*fallback >= 0 && *fallback < mov->nb_streams) {
3765  track->tref_tag = MKTAG('f','a','l','l');
3766  track->tref_id = mov->tracks[*fallback].track_id;
3767  }
3768  }
3769  }
3770  }
3771  for (i = 0; i < mov->nb_streams; i++) {
3772  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3773  int src_trk = mov->tracks[i].src_track;
3774  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3775  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3776  //src_trk may have a different timescale than the tmcd track
3777  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3778  mov->tracks[i].timescale,
3779  mov->tracks[src_trk].timescale);
3780  }
3781  }
3782 
3783  mov_write_mvhd_tag(pb, mov);
3784  if (mov->mode != MODE_MOV && !mov->iods_skip)
3785  mov_write_iods_tag(pb, mov);
3786  for (i = 0; i < mov->nb_streams; i++) {
3787  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3788  int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3789  if (ret < 0)
3790  return ret;
3791  }
3792  }
3793  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3794  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3795 
3796  if (mov->mode == MODE_PSP)
3797  mov_write_uuidusmt_tag(pb, s);
3798  else
3799  mov_write_udta_tag(pb, mov, s);
3800 
3801  return update_size(pb, pos);
3802 }
3803 
3804 static void param_write_int(AVIOContext *pb, const char *name, int value)
3805 {
3806  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3807 }
3808 
3809 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3810 {
3811  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3812 }
3813 
3814 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3815 {
3816  char buf[150];
3817  len = FFMIN(sizeof(buf) / 2 - 1, len);
3818  ff_data_to_hex(buf, value, len, 0);
3819  buf[2 * len] = '\0';
3820  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3821 }
3822 
3823 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
3824 {
3825  int64_t pos = avio_tell(pb);
3826  int i;
3827  int64_t manifest_bit_rate = 0;
3828  AVCPBProperties *props = NULL;
3829 
3830  static const uint8_t uuid[] = {
3831  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3832  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3833  };
3834 
3835  avio_wb32(pb, 0);
3836  ffio_wfourcc(pb, "uuid");
3837  avio_write(pb, uuid, sizeof(uuid));
3838  avio_wb32(pb, 0);
3839 
3840  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3841  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3842  avio_printf(pb, "<head>\n");
3843  if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3844  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3845  LIBAVFORMAT_IDENT);
3846  avio_printf(pb, "</head>\n");
3847  avio_printf(pb, "<body>\n");
3848  avio_printf(pb, "<switch>\n");
3849 
3850  mov_setup_track_ids(mov, s);
3851 
3852  for (i = 0; i < mov->nb_streams; i++) {
3853  MOVTrack *track = &mov->tracks[i];
3854  const char *type;
3855  int track_id = track->track_id;
3856  char track_name_buf[32] = { 0 };
3857 
3858  AVStream *st = track->st;
3859  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3860 
3861  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3862  type = "video";
3863  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3864  type = "audio";
3865  } else {
3866  continue;
3867  }
3868 
3869  props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES, NULL);
3870 
3871  if (track->par->bit_rate) {
3872  manifest_bit_rate = track->par->bit_rate;
3873  } else if (props) {
3874  manifest_bit_rate = props->max_bitrate;
3875  }
3876 
3877  avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
3878  manifest_bit_rate);
3879  param_write_int(pb, "systemBitrate", manifest_bit_rate);
3880  param_write_int(pb, "trackID", track_id);
3881  param_write_string(pb, "systemLanguage", lang ? lang->value : "und");
3882 
3883  /* Build track name piece by piece: */
3884  /* 1. track type */
3885  av_strlcat(track_name_buf, type, sizeof(track_name_buf));
3886  /* 2. track language, if available */
3887  if (lang)
3888  av_strlcatf(track_name_buf, sizeof(track_name_buf),
3889  "_%s", lang->value);
3890  /* 3. special type suffix */
3891  /* "_cc" = closed captions, "_ad" = audio_description */
3892  if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
3893  av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf));
3894  else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
3895  av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf));
3896 
3897  param_write_string(pb, "trackName", track_name_buf);
3898 
3899  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3900  if (track->par->codec_id == AV_CODEC_ID_H264) {
3901  uint8_t *ptr;
3902  int size = track->par->extradata_size;
3903  if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
3904  &size)) {
3905  param_write_hex(pb, "CodecPrivateData",
3906  ptr ? ptr : track->par->extradata,
3907  size);
3908  av_free(ptr);
3909  }
3910  param_write_string(pb, "FourCC", "H264");
3911  } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
3912  param_write_string(pb, "FourCC", "WVC1");
3913  param_write_hex(pb, "CodecPrivateData", track->par->extradata,
3914  track->par->extradata_size);
3915  }
3916  param_write_int(pb, "MaxWidth", track->par->width);
3917  param_write_int(pb, "MaxHeight", track->par->height);
3918  param_write_int(pb, "DisplayWidth", track->par->width);
3919  param_write_int(pb, "DisplayHeight", track->par->height);
3920  } else {
3921  if (track->par->codec_id == AV_CODEC_ID_AAC) {
3922  switch (track->par->profile)
3923  {
3924  case FF_PROFILE_AAC_HE_V2:
3925  param_write_string(pb, "FourCC", "AACP");
3926  break;
3927  case FF_PROFILE_AAC_HE:
3928  param_write_string(pb, "FourCC", "AACH");
3929  break;
3930  default:
3931  param_write_string(pb, "FourCC", "AACL");
3932  }
3933  } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
3934  param_write_string(pb, "FourCC", "WMAP");
3935  }
3936  param_write_hex(pb, "CodecPrivateData", track->par->extradata,
3937  track->par->extradata_size);
3938  param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3939  track->par->codec_id));
3940  param_write_int(pb, "Channels", track->par->channels);
3941  param_write_int(pb, "SamplingRate", track->par->sample_rate);
3942  param_write_int(pb, "BitsPerSample", 16);
3943  param_write_int(pb, "PacketSize", track->par->block_align ?
3944  track->par->block_align : 4);
3945  }
3946  avio_printf(pb, "</%s>\n", type);
3947  }
3948  avio_printf(pb, "</switch>\n");
3949  avio_printf(pb, "</body>\n");
3950  avio_printf(pb, "</smil>\n");
3951 
3952  return update_size(pb, pos);
3953 }
3954 
3955 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3956 {
3957  avio_wb32(pb, 16);
3958  ffio_wfourcc(pb, "mfhd");
3959  avio_wb32(pb, 0);
3960  avio_wb32(pb, mov->fragments);
3961  return 0;
3962 }
3963 
3964 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3965 {
3966  return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3967  (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3968 }
3969 
3970 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3971  MOVTrack *track, int64_t moof_offset)
3972 {
3973  int64_t pos = avio_tell(pb);
3974  uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3975  MOV_TFHD_BASE_DATA_OFFSET;
3976  if (!track->entry) {
3977  flags |= MOV_TFHD_DURATION_IS_EMPTY;
3978  } else {
3979  flags |= MOV_TFHD_DEFAULT_FLAGS;
3980  }
3981  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3982  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3983  if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3984  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3985  flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3986  }
3987 
3988  /* Don't set a default sample size, the silverlight player refuses
3989  * to play files with that set. Don't set a default sample duration,
3990  * WMP freaks out if it is set. Don't set a base data offset, PIFF
3991  * file format says it MUST NOT be set. */
3992  if (track->mode == MODE_ISM)
3993  flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3994  MOV_TFHD_BASE_DATA_OFFSET);
3995 
3996  avio_wb32(pb, 0); /* size placeholder */
3997  ffio_wfourcc(pb, "tfhd");
3998  avio_w8(pb, 0); /* version */
3999  avio_wb24(pb, flags);
4000 
4001  avio_wb32(pb, track->track_id); /* track-id */
4002  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
4003  avio_wb64(pb, moof_offset);
4004  if (flags & MOV_TFHD_DEFAULT_DURATION) {
4005  track->default_duration = get_cluster_duration(track, 0);
4006  avio_wb32(pb, track->default_duration);
4007  }
4008  if (flags & MOV_TFHD_DEFAULT_SIZE) {
4009  track->default_size = track->entry ? track->cluster[0].size : 1;
4010  avio_wb32(pb, track->default_size);
4011  } else
4012  track->default_size = -1;
4013 
4014  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
4015  /* Set the default flags based on the second sample, if available.
4016  * If the first sample is different, that can be signaled via a separate field. */
4017  if (track->entry > 1)
4018  track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
4019  else
4020  track->default_sample_flags =
4021  track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
4022  (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
4023  MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
4024  avio_wb32(pb, track->default_sample_flags);
4025  }
4026 
4027  return update_size(pb, pos);
4028 }
4029 
4030 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
4031  MOVTrack *track, int moof_size,
4032  int first, int end)
4033 {
4034  int64_t pos = avio_tell(pb);
4035  uint32_t flags = MOV_TRUN_DATA_OFFSET;
4036  int i;
4037 
4038  for (i = first; i < end; i++) {
4039  if (get_cluster_duration(track, i) != track->default_duration)
4040  flags |= MOV_TRUN_SAMPLE_DURATION;
4041  if (track->cluster[i].size != track->default_size)
4042  flags |= MOV_TRUN_SAMPLE_SIZE;
4043  if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
4044  flags |= MOV_TRUN_SAMPLE_FLAGS;
4045  }
4046  if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
4047  get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
4048  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
4049  if (track->flags & MOV_TRACK_CTTS)
4050  flags |= MOV_TRUN_SAMPLE_CTS;
4051 
4052  avio_wb32(pb, 0); /* size placeholder */
4053  ffio_wfourcc(pb, "trun");
4054  if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4055  avio_w8(pb, 1); /* version */
4056  else
4057  avio_w8(pb, 0); /* version */
4058  avio_wb24(pb, flags);
4059 
4060  avio_wb32(pb, end - first); /* sample count */
4061  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4062  !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
4063  !mov->first_trun)
4064  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
4065  else
4066  avio_wb32(pb, moof_size + 8 + track->data_offset +
4067  track->cluster[first].pos); /* data offset */
4068  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
4069  avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
4070 
4071  for (i = first; i < end; i++) {
4072  if (flags & MOV_TRUN_SAMPLE_DURATION)
4073  avio_wb32(pb, get_cluster_duration(track, i));
4074  if (flags & MOV_TRUN_SAMPLE_SIZE)
4075  avio_wb32(pb, track->cluster[i].size);
4076  if (flags & MOV_TRUN_SAMPLE_FLAGS)
4077  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
4078  if (flags & MOV_TRUN_SAMPLE_CTS)
4079  avio_wb32(pb, track->cluster[i].cts);
4080  }
4081 
4082  mov->first_trun = 0;
4083  return update_size(pb, pos);
4084 }
4085 
4086 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
4087 {
4088  int64_t pos = avio_tell(pb);
4089  static const uint8_t uuid[] = {
4090  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
4091  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
4092  };
4093 
4094  avio_wb32(pb, 0); /* size placeholder */
4095  ffio_wfourcc(pb, "uuid");
4096  avio_write(pb, uuid, sizeof(uuid));
4097  avio_w8(pb, 1);
4098  avio_wb24(pb, 0);
4099  avio_wb64(pb, track->start_dts + track->frag_start +
4100  track->cluster[0].cts);
4101  avio_wb64(pb, track->end_pts -
4102  (track->cluster[0].dts + track->cluster[0].cts));
4103 
4104  return update_size(pb, pos);
4105 }
4106 
4107 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
4108  MOVTrack *track, int entry)
4109 {
4110  int n = track->nb_frag_info - 1 - entry, i;
4111  int size = 8 + 16 + 4 + 1 + 16*n;
4112  static const uint8_t uuid[] = {
4113  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
4114  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
4115  };
4116 
4117  if (entry < 0)
4118  return 0;
4119 
4120  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
4121  avio_wb32(pb, size);
4122  ffio_wfourcc(pb, "uuid");
4123  avio_write(pb, uuid, sizeof(uuid));
4124  avio_w8(pb, 1);
4125  avio_wb24(pb, 0);
4126  avio_w8(pb, n);
4127  for (i = 0; i < n; i++) {
4128  int index = entry + 1 + i;
4129  avio_wb64(pb, track->frag_info[index].time);
4130  avio_wb64(pb, track->frag_info[index].duration);
4131  }
4132  if (n < mov->ism_lookahead) {
4133  int free_size = 16 * (mov->ism_lookahead - n);
4134  avio_wb32(pb, free_size);
4135  ffio_wfourcc(pb, "free");
4136  ffio_fill(pb, 0, free_size - 8);
4137  }
4138 
4139  return 0;
4140 }
4141 
4142 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
4143  MOVTrack *track)
4144 {
4145  int64_t pos = avio_tell(pb);
4146  int i;
4147  for (i = 0; i < mov->ism_lookahead; i++) {
4148  /* Update the tfrf tag for the last ism_lookahead fragments,
4149  * nb_frag_info - 1 is the next fragment to be written. */
4150  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
4151  }
4152  avio_seek(pb, pos, SEEK_SET);
4153  return 0;
4154 }
4155 
4156 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4157  int size)
4158 {
4159  int i;
4160  for (i = 0; i < mov->nb_streams; i++) {
4161  MOVTrack *track = &mov->tracks[i];
4162  MOVFragmentInfo *info;
4163  if ((tracks >= 0 && i != tracks) || !track->entry)
4164  continue;
4165  track->nb_frag_info++;
4166  if (track->nb_frag_info >= track->frag_info_capacity) {
4167  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
4168  if (av_reallocp_array(&track->frag_info,
4169  new_capacity,
4170  sizeof(*track->frag_info)))
4171  return AVERROR(ENOMEM);
4172  track->frag_info_capacity = new_capacity;
4173  }
4174  info = &track->frag_info[track->nb_frag_info - 1];
4175  info->offset = avio_tell(pb);
4176  info->size = size;
4177  // Try to recreate the original pts for the first packet
4178  // from the fields we have stored
4179  info->time = track->start_dts + track->frag_start +
4180  track->cluster[0].cts;
4181  info->duration = track->end_pts -
4182  (track->cluster[0].dts + track->cluster[0].cts);
4183  // If the pts is less than zero, we will have trimmed
4184  // away parts of the media track using an edit list,
4185  // and the corresponding start presentation time is zero.
4186  if (info->time < 0) {
4187  info->duration += info->time;
4188  info->time = 0;
4189  }
4190  info->tfrf_offset = 0;
4191  mov_write_tfrf_tags(pb, mov, track);
4192  }
4193  return 0;
4194 }
4195 
4196 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
4197 {
4198  int i;
4199  for (i = 0; i < mov->nb_streams; i++) {
4200  MOVTrack *track = &mov->tracks[i];
4201  if ((tracks >= 0 && i != tracks) || !track->entry)
4202  continue;
4203  if (track->nb_frag_info > max) {
4204  memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
4205  track->nb_frag_info = max;
4206  }
4207  }
4208 }
4209 
4210 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
4211 {
4212  int64_t pos = avio_tell(pb);
4213 
4214  avio_wb32(pb, 0); /* size */
4215  ffio_wfourcc(pb, "tfdt");
4216  avio_w8(pb, 1); /* version */
4217  avio_wb24(pb, 0);
4218  avio_wb64(pb, track->frag_start);
4219  return update_size(pb, pos);
4220 }
4221 
4222 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
4223  MOVTrack *track, int64_t moof_offset,
4224  int moof_size)
4225 {
4226  int64_t pos = avio_tell(pb);
4227  int i, start = 0;
4228  avio_wb32(pb, 0); /* size placeholder */
4229  ffio_wfourcc(pb, "traf");
4230 
4231  mov_write_tfhd_tag(pb, mov, track, moof_offset);
4232  if (mov->mode != MODE_ISM)
4233  mov_write_tfdt_tag(pb, track);
4234  for (i = 1; i < track->entry; i++) {
4235  if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
4236  mov_write_trun_tag(pb, mov, track, moof_size, start, i);
4237  start = i;
4238  }
4239  }
4240  mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
4241  if (mov->mode == MODE_ISM) {
4242  mov_write_tfxd_tag(pb, track);
4243 
4244  if (mov->ism_lookahead) {
4245  int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
4246 
4247  if (track->nb_frag_info > 0) {
4248  MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
4249  if (!info->tfrf_offset)
4250  info->tfrf_offset = avio_tell(pb);
4251  }
4252  avio_wb32(pb, 8 + size);
4253  ffio_wfourcc(pb, "free");
4254  for (i = 0; i < size; i++)
4255  avio_w8(pb, 0);
4256  }
4257  }
4258 
4259  return update_size(pb, pos);
4260 }
4261 
4262 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
4263  int tracks, int moof_size)
4264 {
4265  int64_t pos = avio_tell(pb);
4266  int i;
4267 
4268  avio_wb32(pb, 0); /* size placeholder */
4269  ffio_wfourcc(pb, "moof");
4270  mov->first_trun = 1;
4271 
4272  mov_write_mfhd_tag(pb, mov);
4273  for (i = 0; i < mov->nb_streams; i++) {
4274  MOVTrack *track = &mov->tracks[i];
4275  if (tracks >= 0 && i != tracks)
4276  continue;
4277  if (!track->entry)
4278  continue;
4279  mov_write_traf_tag(pb, mov, track, pos, moof_size);
4280  }
4281 
4282  return update_size(pb, pos);
4283 }
4284 
4285 static int mov_write_sidx_tag(AVIOContext *pb,
4286  MOVTrack *track, int ref_size, int total_sidx_size)
4287 {
4288  int64_t pos = avio_tell(pb), offset_pos, end_pos;
4289  int64_t presentation_time, duration, offset;
4290  int starts_with_SAP, i, entries;
4291 
4292  if (track->entry) {
4293  entries = 1;
4294  presentation_time = track->start_dts + track->frag_start +
4295  track->cluster[0].cts;
4296  duration = track->end_pts -
4297  (track->cluster[0].dts + track->cluster[0].cts);
4298  starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
4299 
4300  // pts<0 should be cut away using edts
4301  if (presentation_time < 0) {
4302  duration += presentation_time;
4303  presentation_time = 0;
4304  }
4305  } else {
4306  entries = track->nb_frag_info;
4307  if (entries <= 0)
4308  return 0;
4309  presentation_time = track->frag_info[0].time;
4310  }
4311 
4312  avio_wb32(pb, 0); /* size */
4313  ffio_wfourcc(pb, "sidx");
4314  avio_w8(pb, 1); /* version */
4315  avio_wb24(pb, 0);
4316  avio_wb32(pb, track->track_id); /* reference_ID */
4317  avio_wb32(pb, track->timescale); /* timescale */
4318  avio_wb64(pb, presentation_time); /* earliest_presentation_time */
4319  offset_pos = avio_tell(pb);
4320  avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
4321  avio_wb16(pb, 0); /* reserved */
4322 
4323  avio_wb16(pb, entries); /* reference_count */
4324  for (i = 0; i < entries; i++) {
4325  if (!track->entry) {
4326  if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
4327  av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
4328  }
4329  duration = track->frag_info[i].duration;
4330  ref_size = track->frag_info[i].size;
4331  starts_with_SAP = 1;
4332  }
4333  avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
4334  avio_wb32(pb, duration); /* subsegment_duration */
4335  avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
4336  }
4337 
4338  end_pos = avio_tell(pb);
4339  offset = pos + total_sidx_size - end_pos;
4340  avio_seek(pb, offset_pos, SEEK_SET);
4341  avio_wb64(pb, offset);
4342  avio_seek(pb, end_pos, SEEK_SET);
4343  return update_size(pb, pos);
4344 }
4345 
4346 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
4347  int tracks, int ref_size)
4348 {
4349  int i, round, ret;
4350  AVIOContext *avio_buf;
4351  int total_size = 0;
4352  for (round = 0; round < 2; round++) {
4353  // First run one round to calculate the total size of all
4354  // sidx atoms.
4355  // This would be much simpler if we'd only write one sidx
4356  // atom, for the first track in the moof.
4357  if (round == 0) {
4358  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4359  return ret;
4360  } else {
4361  avio_buf = pb;
4362  }
4363  for (i = 0; i < mov->nb_streams; i++) {
4364  MOVTrack *track = &mov->tracks[i];
4365  if (tracks >= 0 && i != tracks)
4366  continue;
4367  // When writing a sidx for the full file, entry is 0, but
4368  // we want to include all tracks. ref_size is 0 in this case,
4369  // since we read it from frag_info instead.
4370  if (!track->entry && ref_size > 0)
4371  continue;
4372  total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
4373  total_size);
4374  }
4375  if (round == 0)
4376  total_size = ffio_close_null_buf(avio_buf);
4377  }
4378  return 0;
4379 }
4380 
4381 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4382  int64_t mdat_size)
4383 {
4384  AVIOContext *avio_buf;
4385  int ret, moof_size;
4386 
4387  if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4388  return ret;
4389  mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
4390  moof_size = ffio_close_null_buf(avio_buf);
4391 
4392  if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
4393  mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
4394 
4395  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
4396  !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
4397  mov->ism_lookahead) {
4398  if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
4399  return ret;
4400  if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
4401  mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
4402  mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
4403  }
4404  }
4405 
4406  return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
4407 }
4408 
4409 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
4410 {
4411  int64_t pos = avio_tell(pb);
4412  int i;
4413 
4414  avio_wb32(pb, 0); /* size placeholder */
4415  ffio_wfourcc(pb, "tfra");
4416  avio_w8(pb, 1); /* version */
4417  avio_wb24(pb, 0);
4418 
4419  avio_wb32(pb, track->track_id);
4420  avio_wb32(pb, 0); /* length of traf/trun/sample num */
4421  avio_wb32(pb, track->nb_frag_info);
4422  for (i = 0; i < track->nb_frag_info; i++) {
4423  avio_wb64(pb, track->frag_info[i].time);
4424  avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
4425  avio_w8(pb, 1); /* traf number */
4426  avio_w8(pb, 1); /* trun number */
4427  avio_w8(pb, 1); /* sample number */
4428  }
4429 
4430  return update_size(pb, pos);
4431 }
4432 
4433 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
4434 {
4435  int64_t pos = avio_tell(pb);
4436  int i;
4437 
4438  avio_wb32(pb, 0); /* size placeholder */
4439  ffio_wfourcc(pb, "mfra");
4440  /* An empty mfra atom is enough to indicate to the publishing point that
4441  * the stream has ended. */
4442  if (mov->flags & FF_MOV_FLAG_ISML)
4443  return update_size(pb, pos);
4444 
4445  for (i = 0; i < mov->nb_streams; i++) {
4446  MOVTrack *track = &mov->tracks[i];
4447  if (track->nb_frag_info)
4448  mov_write_tfra_tag(pb, track);
4449  }
4450 
4451  avio_wb32(pb, 16);
4452  ffio_wfourcc(pb, "mfro");
4453  avio_wb32(pb, 0); /* version + flags */
4454  avio_wb32(pb, avio_tell(pb) + 4 - pos);
4455 
4456  return update_size(pb, pos);
4457 }
4458 
4459 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
4460 {
4461  avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
4462  ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
4463 
4464  mov->mdat_pos = avio_tell(pb);
4465  avio_wb32(pb, 0); /* size placeholder*/
4466  ffio_wfourcc(pb, "mdat");
4467  return 0;
4468 }
4469 
4470 /* TODO: This needs to be more general */
4471 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
4472 {
4473  MOVMuxContext *mov = s->priv_data;
4474  int64_t pos = avio_tell(pb);
4475  int has_h264 = 0, has_video = 0;
4476  int minor = 0x200;
4477  int i;
4478 
4479  for (i = 0; i < s->nb_streams; i++) {
4480  AVStream *st = s->streams[i];
4481  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
4482  has_video = 1;
4483  if (st->codecpar->codec_id == AV_CODEC_ID_H264)
4484  has_h264 = 1;
4485  }
4486 
4487  avio_wb32(pb, 0); /* size */
4488  ffio_wfourcc(pb, "ftyp");
4489 
4490  if (mov->major_brand && strlen(mov->major_brand) >= 4)
4491  ffio_wfourcc(pb, mov->major_brand);
4492  else if (mov->mode == MODE_3GP) {
4493  ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
4494  minor = has_h264 ? 0x100 : 0x200;
4495  } else if (mov->mode & MODE_3G2) {
4496  ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
4497  minor = has_h264 ? 0x20000 : 0x10000;
4498  } else if (mov->mode == MODE_PSP)
4499  ffio_wfourcc(pb, "MSNV");
4500  else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4501  ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
4502  else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4503  ffio_wfourcc(pb, "iso4");
4504  else if (mov->mode == MODE_MP4)
4505  ffio_wfourcc(pb, "isom");
4506  else if (mov->mode == MODE_IPOD)
4507  ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
4508  else if (mov->mode == MODE_ISM)
4509  ffio_wfourcc(pb, "isml");
4510  else if (mov->mode == MODE_F4V)
4511  ffio_wfourcc(pb, "f4v ");
4512  else
4513  ffio_wfourcc(pb, "qt ");
4514 
4515  avio_wb32(pb, minor);
4516 
4517  if (mov->mode == MODE_MOV)
4518  ffio_wfourcc(pb, "qt ");
4519  else if (mov->mode == MODE_ISM) {
4520  ffio_wfourcc(pb, "piff");
4521  } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
4522  ffio_wfourcc(pb, "isom");
4523  ffio_wfourcc(pb, "iso2");
4524  if (has_h264)
4525  ffio_wfourcc(pb, "avc1");
4526  }
4527 
4528  // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
4529  // brand. This is compatible with users that don't understand tfdt.
4530  if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
4531  ffio_wfourcc(pb, "iso6");
4532 
4533  if (mov->mode == MODE_3GP)
4534  ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
4535  else if (mov->mode & MODE_3G2)
4536  ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
4537  else if (mov->mode == MODE_PSP)
4538  ffio_wfourcc(pb, "MSNV");
4539  else if (mov->mode == MODE_MP4)
4540  ffio_wfourcc(pb, "mp41");
4541 
4542  if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4543  ffio_wfourcc(pb, "dash");
4544 
4545  return update_size(pb, pos);
4546 }
4547 
4548 static int mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
4549 {
4550  AVStream *video_st = s->streams[0];
4551  AVCodecParameters *video_par = s->streams[0]->codecpar;
4552  AVCodecParameters *audio_par = s->streams[1]->codecpar;
4553  int audio_rate = audio_par->sample_rate;
4554  int64_t frame_rate = video_st->avg_frame_rate.den ?
4555  (video_st->avg_frame_rate.num * 0x10000LL) / video_st->avg_frame_rate.den :
4556  0;
4557  int audio_kbitrate = audio_par->bit_rate / 1000;
4558  int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
4559 
4560  if (frame_rate < 0 || frame_rate > INT32_MAX) {
4561  av_log(s, AV_LOG_ERROR, "Frame rate %f outside supported range\n", frame_rate / (double)0x10000);
4562  return AVERROR(EINVAL);
4563  }
4564 
4565  avio_wb32(pb, 0x94); /* size */
4566  ffio_wfourcc(pb, "uuid");
4567  ffio_wfourcc(pb, "PROF");
4568 
4569  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
4570  avio_wb32(pb, 0xbb88695c);
4571  avio_wb32(pb, 0xfac9c740);
4572 
4573  avio_wb32(pb, 0x0); /* ? */
4574  avio_wb32(pb, 0x3); /* 3 sections ? */
4575 
4576  avio_wb32(pb, 0x14); /* size */
4577  ffio_wfourcc(pb, "FPRF");
4578  avio_wb32(pb, 0x0); /* ? */
4579  avio_wb32(pb, 0x0); /* ? */
4580  avio_wb32(pb, 0x0); /* ? */
4581 
4582  avio_wb32(pb, 0x2c); /* size */
4583  ffio_wfourcc(pb, "APRF"); /* audio */
4584  avio_wb32(pb, 0x0);
4585  avio_wb32(pb, 0x2); /* TrackID */
4586  ffio_wfourcc(pb, "mp4a");
4587  avio_wb32(pb, 0x20f);
4588  avio_wb32(pb, 0x0);
4589  avio_wb32(pb, audio_kbitrate);
4590  avio_wb32(pb, audio_kbitrate);
4591  avio_wb32(pb, audio_rate);
4592  avio_wb32(pb, audio_par->channels);
4593 
4594  avio_wb32(pb, 0x34); /* size */
4595  ffio_wfourcc(pb, "VPRF"); /* video */
4596  avio_wb32(pb, 0x0);
4597  avio_wb32(pb, 0x1); /* TrackID */
4598  if (video_par->codec_id == AV_CODEC_ID_H264) {
4599  ffio_wfourcc(pb, "avc1");
4600  avio_wb16(pb, 0x014D);
4601  avio_wb16(pb, 0x0015);
4602  } else {
4603  ffio_wfourcc(pb, "mp4v");
4604  avio_wb16(pb, 0x0000);
4605  avio_wb16(pb, 0x0103);
4606  }
4607  avio_wb32(pb, 0x0);
4608  avio_wb32(pb, video_kbitrate);
4609  avio_wb32(pb, video_kbitrate);
4610  avio_wb32(pb, frame_rate);
4611  avio_wb32(pb, frame_rate);
4612  avio_wb16(pb, video_par->width);
4613  avio_wb16(pb, video_par->height);
4614  avio_wb32(pb, 0x010001); /* ? */
4615 
4616  return 0;
4617 }
4618 
4619 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
4620 {
4621  MOVMuxContext *mov = s->priv_data;
4622  int i;
4623 
4624  mov_write_ftyp_tag(pb,s);
4625  if (mov->mode == MODE_PSP) {
4626  int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4627  for (i = 0; i < s->nb_streams; i++) {
4628  AVStream *st = s->streams[i];
4629  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
4630  video_streams_nb++;
4631  else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
4632  audio_streams_nb++;
4633  else
4634  other_streams_nb++;
4635  }
4636 
4637  if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4638  av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4639  return AVERROR(EINVAL);
4640  }
4641  return mov_write_uuidprof_tag(pb, s);
4642  }
4643  return 0;
4644 }
4645 
4646 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4647 {
4648  uint32_t c = -1;
4649  int i, closed_gop = 0;
4650 
4651  for (i = 0; i < pkt->size - 4; i++) {
4652  c = (c << 8) + pkt->data[i];
4653  if (c == 0x1b8) { // gop
4654  closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4655  } else if (c == 0x100) { // pic
4656  int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4657  if (!temp_ref || closed_gop) // I picture is not reordered
4658  *flags = MOV_SYNC_SAMPLE;
4659  else
4660  *flags = MOV_PARTIAL_SYNC_SAMPLE;
4661  break;
4662  }
4663  }
4664  return 0;
4665 }
4666 
4667 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4668 {
4669  const uint8_t *start, *next, *end = pkt->data + pkt->size;
4670  int seq = 0, entry = 0;
4671  int key = pkt->flags & AV_PKT_FLAG_KEY;
4672  start = find_next_marker(pkt->data, end);
4673  for (next = start; next < end; start = next) {
4674  next = find_next_marker(start + 4, end);
4675  switch (AV_RB32(start)) {
4676  case VC1_CODE_SEQHDR:
4677  seq = 1;
4678  break;
4679  case VC1_CODE_ENTRYPOINT:
4680  entry = 1;
4681  break;
4682  case VC1_CODE_SLICE:
4683  trk->vc1_info.slices = 1;
4684  break;
4685  }
4686  }
4687  if (!trk->entry && trk->vc1_info.first_packet_seen)
4688  trk->vc1_info.first_frag_written = 1;
4689  if (!trk->entry && !trk->vc1_info.first_frag_written) {
4690  /* First packet in first fragment */
4691  trk->vc1_info.first_packet_seq = seq;
4692  trk->vc1_info.first_packet_entry = entry;
4693  trk->vc1_info.first_packet_seen = 1;
4694  } else if ((seq && !trk->vc1_info.packet_seq) ||
4695  (entry && !trk->vc1_info.packet_entry)) {
4696  int i;
4697  for (i = 0; i < trk->entry; i++)
4698  trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4699  trk->has_keyframes = 0;
4700  if (seq)
4701  trk->vc1_info.packet_seq = 1;
4702  if (entry)
4703  trk->vc1_info.packet_entry = 1;
4704  if (!trk->vc1_info.first_frag_written) {
4705  /* First fragment */
4706  if ((!seq || trk->vc1_info.first_packet_seq) &&
4707  (!entry || trk->vc1_info.first_packet_entry)) {
4708  /* First packet had the same headers as this one, readd the
4709  * sync sample flag. */
4710  trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4711  trk->has_keyframes = 1;
4712  }
4713  }
4714  }
4715  if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4716  key = seq && entry;
4717  else if (trk->vc1_info.packet_seq)
4718  key = seq;
4719  else if (trk->vc1_info.packet_entry)
4720  key = entry;
4721  if (key) {
4722  trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4723  trk->has_keyframes++;
4724  }
4725 }
4726 
4727 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
4728 {
4729  MOVMuxContext *mov = s->priv_data;
4730  int ret, buf_size;
4731  uint8_t *buf;
4732  int i, offset;
4733 
4734  if (!track->mdat_buf)
4735  return 0;
4736  if (!mov->mdat_buf) {
4737  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4738  return ret;
4739  }
4740  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4741  track->mdat_buf = NULL;
4742 
4743  offset = avio_tell(mov->mdat_buf);
4744  avio_write(mov->mdat_buf, buf, buf_size);
4745  av_free(buf);
4746 
4747  for (i = track->entries_flushed; i < track->entry; i++)
4748  track->cluster[i].pos += offset;
4749  track->entries_flushed = track->entry;
4750  return 0;
4751 }
4752 
4753 static int mov_flush_fragment(AVFormatContext *s, int force)
4754 {
4755  MOVMuxContext *mov = s->priv_data;
4756  int i, first_track = -1;
4757  int64_t mdat_size = 0;
4758  int ret;
4759  int has_video = 0, starts_with_key = 0, first_video_track = 1;
4760 
4761  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4762  return 0;
4763 
4764  // Try to fill in the duration of the last packet in each stream
4765  // from queued packets in the interleave queues. If the flushing
4766  // of fragments was triggered automatically by an AVPacket, we
4767  // already have reliable info for the end of that track, but other
4768  // tracks may need to be filled in.
4769  for (i = 0; i < s->nb_streams; i++) {
4770  MOVTrack *track = &mov->tracks[i];
4771  if (!track->end_reliable) {
4772  AVPacket pkt;
4773  if (!ff_interleaved_peek(s, i, &pkt, 1)) {
4774  if (track->dts_shift != AV_NOPTS_VALUE)
4775  pkt.dts += track->dts_shift;
4776  track->track_duration = pkt.dts - track->start_dts;
4777  if (pkt.pts != AV_NOPTS_VALUE)
4778  track->end_pts = pkt.pts;
4779  else
4780  track->end_pts = pkt.dts;
4781  }
4782  }
4783  }
4784 
4785  for (i = 0; i < mov->nb_streams; i++) {
4786  MOVTrack *track = &mov->tracks[i];
4787  if (track->entry <= 1)
4788  continue;
4789  // Sample durations are calculated as the diff of dts values,
4790  // but for the last sample in a fragment, we don't know the dts
4791  // of the first sample in the next fragment, so we have to rely
4792  // on what was set as duration in the AVPacket. Not all callers
4793  // set this though, so we might want to replace it with an
4794  // estimate if it currently is zero.
4795  if (get_cluster_duration(track, track->entry - 1) != 0)
4796  continue;
4797  // Use the duration (i.e. dts diff) of the second last sample for
4798  // the last one. This is a wild guess (and fatal if it turns out
4799  // to be too long), but probably the best we can do - having a zero
4800  // duration is bad as well.
4801  track->track_duration += get_cluster_duration(track, track->entry - 2);
4802  track->end_pts += get_cluster_duration(track, track->entry - 2);
4803  if (!mov->missing_duration_warned) {
4804  av_log(s, AV_LOG_WARNING,
4805  "Estimating the duration of the last packet in a "
4806  "fragment, consider setting the duration field in "
4807  "AVPacket instead.\n");
4808  mov->missing_duration_warned = 1;
4809  }
4810  }
4811 
4812  if (!mov->moov_written) {
4813  int64_t pos = avio_tell(s->pb);
4814  uint8_t *buf;
4815  int buf_size, moov_size;
4816 
4817  for (i = 0; i < mov->nb_streams; i++)
4818  if (!mov->tracks[i].entry)
4819  break;
4820  /* Don't write the initial moov unless all tracks have data */
4821  if (i < mov->nb_streams && !force)
4822  return 0;
4823 
4824  moov_size = get_moov_size(s);
4825  for (i = 0; i < mov->nb_streams; i++)
4826  mov->tracks[i].data_offset = pos + moov_size + 8;
4827 
4828  avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
4829  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4830  mov_write_identification(s->pb, s);
4831  if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4832  return ret;
4833 
4834  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4835  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4836  mov->reserved_header_pos = avio_tell(s->pb);
4837  avio_flush(s->pb);
4838  mov->moov_written = 1;
4839  return 0;
4840  }
4841 
4842  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4843  mov->mdat_buf = NULL;
4844  avio_wb32(s->pb, buf_size + 8);
4845  ffio_wfourcc(s->pb, "mdat");
4846  avio_write(s->pb, buf, buf_size);
4847  av_free(buf);
4848 
4849  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4850  mov->reserved_header_pos = avio_tell(s->pb);
4851 
4852  mov->moov_written = 1;
4853  mov->mdat_size = 0;
4854  for (i = 0; i < mov->nb_streams; i++) {
4855  if (mov->tracks[i].entry)
4856  mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4857  mov->tracks[i].track_duration -
4858  mov->tracks[i].cluster[0].dts;
4859  mov->tracks[i].entry = 0;
4860  mov->tracks[i].end_reliable = 0;
4861  }
4862  avio_flush(s->pb);
4863  return 0;
4864  }
4865 
4866  if (mov->frag_interleave) {
4867  for (i = 0; i < mov->nb_streams; i++) {
4868  MOVTrack *track = &mov->tracks[i];
4869  int ret;
4870  if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4871  return ret;
4872  }
4873 
4874  if (!mov->mdat_buf)
4875  return 0;
4876  mdat_size = avio_tell(mov->mdat_buf);
4877  }
4878 
4879  for (i = 0; i < mov->nb_streams; i++) {
4880  MOVTrack *track = &mov->tracks[i];
4881  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4882  track->data_offset = 0;
4883  else
4884  track->data_offset = mdat_size;
4885  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4886  has_video = 1;
4887  if (first_video_track) {
4888  if (track->entry)
4889  starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
4890  first_video_track = 0;
4891  }
4892  }
4893  if (!track->entry)
4894  continue;
4895  if (track->mdat_buf)
4896  mdat_size += avio_tell(track->mdat_buf);
4897  if (first_track < 0)
4898  first_track = i;
4899  }
4900 
4901  if (!mdat_size)
4902  return 0;
4903 
4904  avio_write_marker(s->pb,
4905  av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
4906  (has_video ? starts_with_key : mov->tracks[first_track].cluster[0].flags & MOV_SYNC_SAMPLE) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);
4907 
4908  for (i = 0; i < mov->nb_streams; i++) {
4909  MOVTrack *track = &mov->tracks[i];
4910  int buf_size, write_moof = 1, moof_tracks = -1;
4911  uint8_t *buf;
4912  int64_t duration = 0;
4913 
4914  if (track->entry)
4915  duration = track->start_dts + track->track_duration -
4916  track->cluster[0].dts;
4917  if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4918  if (!track->mdat_buf)
4919  continue;
4920  mdat_size = avio_tell(track->mdat_buf);
4921  moof_tracks = i;
4922  } else {
4923  write_moof = i == first_track;
4924  }
4925 
4926  if (write_moof) {
4927  avio_flush(s->pb);
4928 
4929  mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4930  mov->fragments++;
4931 
4932  avio_wb32(s->pb, mdat_size + 8);
4933  ffio_wfourcc(s->pb, "mdat");
4934  }
4935 
4936  if (track->entry)
4937  track->frag_start += duration;
4938  track->entry = 0;
4939  track->entries_flushed = 0;
4940  track->end_reliable = 0;
4941  if (!mov->frag_interleave) {
4942  if (!track->mdat_buf)
4943  continue;
4944  buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4945  track->mdat_buf = NULL;
4946  } else {
4947  if (!mov->mdat_buf)
4948  continue;
4949  buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4950  mov->mdat_buf = NULL;
4951  }
4952 
4953  avio_write(s->pb, buf, buf_size);
4954  av_free(buf);
4955  }
4956 
4957  mov->mdat_size = 0;
4958 
4959  avio_flush(s->pb);
4960  return 0;
4961 }
4962 
4963 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
4964 {
4965  MOVMuxContext *mov = s->priv_data;
4966  int had_moov = mov->moov_written;
4967  int ret = mov_flush_fragment(s, force);
4968  if (ret < 0)
4969  return ret;
4970  // If using delay_moov, the first flush only wrote the moov,
4971  // not the actual moof+mdat pair, thus flush once again.
4972  if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4973  ret = mov_flush_fragment(s, force);
4974  return ret;
4975 }
4976 
4977 static int check_pkt(AVFormatContext *s, AVPacket *pkt)
4978 {
4979  MOVMuxContext *mov = s->priv_data;
4980  MOVTrack *trk = &mov->tracks[pkt->stream_index];
4981  int64_t ref;
4982  uint64_t duration;
4983 
4984  if (trk->entry) {
4985  ref = trk->cluster[trk->entry - 1].dts;
4986  } else if ( trk->start_dts != AV_NOPTS_VALUE
4987  && !trk->frag_discont) {
4988  ref = trk->start_dts + trk->track_duration;
4989  } else
4990  ref = pkt->dts; // Skip tests for the first packet
4991 
4992  if (trk->dts_shift != AV_NOPTS_VALUE) {
4993  /* With negative CTS offsets we have set an offset to the DTS,
4994  * reverse this for the check. */
4995  ref -= trk->dts_shift;
4996  }
4997 
4998  duration = pkt->dts - ref;
4999  if (pkt->dts < ref || duration >= INT_MAX) {
5000  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
5001  duration, pkt->dts
5002  );
5003 
5004  pkt->dts = ref + 1;
5005  pkt->pts = AV_NOPTS_VALUE;
5006  }
5007 
5008  if (pkt->duration < 0 || pkt->duration > INT_MAX) {
5009  av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
5010  return AVERROR(EINVAL);
5011  }
5012  return 0;
5013 }
5014 
5015 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5016 {
5017  MOVMuxContext *mov = s->priv_data;
5018  AVIOContext *pb = s->pb;
5019  MOVTrack *trk = &mov->tracks[pkt->stream_index];
5020  AVCodecParameters *par = trk->par;
5021  unsigned int samples_in_chunk = 0;
5022  int size = pkt->size, ret = 0;
5023  uint8_t *reformatted_data = NULL;
5024 
5025  ret = check_pkt(s, pkt);
5026  if (ret < 0)
5027  return ret;
5028 
5029  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5030  int ret;
5031  if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
5032  if (mov->frag_interleave && mov->fragments > 0) {
5033  if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
5034  if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
5035  return ret;
5036  }
5037  }
5038 
5039  if (!trk->mdat_buf) {
5040  if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
5041  return ret;
5042  }
5043  pb = trk->mdat_buf;
5044  } else {
5045  if (!mov->mdat_buf) {
5046  if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5047  return ret;
5048  }
5049  pb = mov->mdat_buf;
5050  }
5051  }
5052 
5053  if (par->codec_id == AV_CODEC_ID_AMR_NB) {
5054  /* We must find out how many AMR blocks there are in one packet */
5055  static const uint16_t packed_size[16] =
5056  {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
5057  int len = 0;
5058 
5059  while (len < size && samples_in_chunk < 100) {
5060  len += packed_size[(pkt->data[len] >> 3) & 0x0F];
5061  samples_in_chunk++;
5062  }
5063  if (samples_in_chunk > 1) {
5064  av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
5065  return -1;
5066  }
5067  } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS ||
5068  par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
5069  samples_in_chunk = trk->par->frame_size;
5070  } else if (trk->sample_size)
5071  samples_in_chunk = size / trk->sample_size;
5072  else
5073  samples_in_chunk = 1;
5074 
5075  /* copy extradata if it exists */
5076  if (trk->vos_len == 0 && par->extradata_size > 0 &&
5077  !TAG_IS_AVCI(trk->tag) &&
5078  (par->codec_id != AV_CODEC_ID_DNXHD)) {
5079  trk->vos_len = par->extradata_size;
5080  trk->vos_data = av_malloc(trk->vos_len);
5081  if (!trk->vos_data) {
5082  ret = AVERROR(ENOMEM);
5083  goto err;
5084  }
5085  memcpy(trk->vos_data, par->extradata, trk->vos_len);
5086  }
5087 
5088  if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
5089  (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
5090  if (!s->streams[pkt->stream_index]->nb_frames) {
5091  av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
5092  "use the audio bitstream filter 'aac_adtstoasc' to fix it "
5093  "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
5094  return -1;
5095  }
5096  av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
5097  }
5098  if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
5099  /* from x264 or from bytestream H.264 */
5100  /* NAL reformatting needed */
5101  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5102  ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
5103  &size);
5104  avio_write(pb, reformatted_data, size);
5105  } else {
5106  if (trk->cenc.aes_ctr) {
5107  size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
5108  if (size < 0) {
5109  ret = size;
5110  goto err;
5111  }
5112  } else {
5113  size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
5114  }
5115  }
5116  } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
5117  (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
5118  /* extradata is Annex B, assume the bitstream is too and convert it */
5119  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5120  ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
5121  avio_write(pb, reformatted_data, size);
5122  } else {
5123  size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
5124  }
5125 #if CONFIG_AC3_PARSER
5126  } else if (par->codec_id == AV_CODEC_ID_EAC3) {
5127  size = handle_eac3(mov, pkt, trk);
5128  if (size < 0)
5129  return size;
5130  else if (!size)
5131  goto end;
5132  avio_write(pb, pkt->data, size);
5133 #endif
5134  } else {
5135  if (trk->cenc.aes_ctr) {
5136  if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) {
5137  int nal_size_length = (par->extradata[4] & 0x3) + 1;
5138  ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
5139  } else {
5140  ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
5141  }
5142 
5143  if (ret) {
5144  goto err;
5145  }
5146  } else {
5147  avio_write(pb, pkt->data, size);
5148  }
5149  }
5150 
5151  if ((par->codec_id == AV_CODEC_ID_DNXHD ||
5152  par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
5153  /* copy frame to create needed atoms */
5154  trk->vos_len = size;
5155  trk->vos_data = av_malloc(size);
5156  if (!trk->vos_data) {
5157  ret = AVERROR(ENOMEM);
5158  goto err;
5159  }
5160  memcpy(trk->vos_data, pkt->data, size);
5161  }
5162 
5163  if (trk->entry >= trk->cluster_capacity) {
5164  unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
5165  if (av_reallocp_array(&trk->cluster, new_capacity,
5166  sizeof(*trk->cluster))) {
5167  ret = AVERROR(ENOMEM);
5168  goto err;
5169  }
5170  trk->cluster_capacity = new_capacity;
5171  }
5172 
5173  trk->cluster[trk->entry].pos = avio_tell(pb) - size;
5174  trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
5175  trk->cluster[trk->entry].chunkNum = 0;
5176  trk->cluster[trk->entry].size = size;
5177  trk->cluster[trk->entry].entries = samples_in_chunk;
5178  trk->cluster[trk->entry].dts = pkt->dts;
5179  if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
5180  if (!trk->frag_discont) {
5181  /* First packet of a new fragment. We already wrote the duration
5182  * of the last packet of the previous fragment based on track_duration,
5183  * which might not exactly match our dts. Therefore adjust the dts
5184  * of this packet to be what the previous packets duration implies. */
5185  trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
5186  /* We also may have written the pts and the corresponding duration
5187  * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
5188  * the next fragment. This means the cts of the first sample must
5189  * be the same in all fragments, unless end_pts was updated by
5190  * the packet causing the fragment to be written. */
5191  if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
5192  mov->mode == MODE_ISM)
5193  pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
5194  } else {
5195  /* New fragment, but discontinuous from previous fragments.
5196  * Pretend the duration sum of the earlier fragments is
5197  * pkt->dts - trk->start_dts. */
5198  trk->frag_start = pkt->dts - trk->start_dts;
5199  trk->end_pts = AV_NOPTS_VALUE;
5200  trk->frag_discont = 0;
5201  }
5202  }
5203 
5204  if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
5205  s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
5206  /* Not using edit lists and shifting the first track to start from zero.
5207  * If the other streams start from a later timestamp, we won't be able
5208  * to signal the difference in starting time without an edit list.
5209  * Thus move the timestamp for this first sample to 0, increasing
5210  * its duration instead. */
5211  trk->cluster[trk->entry].dts = trk->start_dts = 0;
5212  }
5213  if (trk->start_dts == AV_NOPTS_VALUE) {
5214  trk->start_dts = pkt->dts;
5215  if (trk->frag_discont) {
5216  if (mov->use_editlist) {
5217  /* Pretend the whole stream started at pts=0, with earlier fragments
5218  * already written. If the stream started at pts=0, the duration sum
5219  * of earlier fragments would have been pkt->pts. */
5220  trk->frag_start = pkt->pts;
5221  trk->start_dts = pkt->dts - pkt->pts;
5222  } else {
5223  /* Pretend the whole stream started at dts=0, with earlier fragments
5224  * already written, with a duration summing up to pkt->dts. */
5225  trk->frag_start = pkt->dts;
5226  trk->start_dts = 0;
5227  }
5228  trk->frag_discont = 0;
5229  } else if (pkt->dts && mov->moov_written)
5230  av_log(s, AV_LOG_WARNING,
5231  "Track %d starts with a nonzero dts %"PRId64", while the moov "
5232  "already has been written. Set the delay_moov flag to handle "
5233  "this case.\n",
5234  pkt->stream_index, pkt->dts);
5235  }
5236  trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
5237  trk->last_sample_is_subtitle_end = 0;
5238 
5239  if (pkt->pts == AV_NOPTS_VALUE) {
5240  av_log(s, AV_LOG_WARNING, "pts has no value\n");
5241  pkt->pts = pkt->dts;
5242  }
5243  if (pkt->dts != pkt->pts)
5244  trk->flags |= MOV_TRACK_CTTS;
5245  trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
5246  trk->cluster[trk->entry].flags = 0;
5247  if (trk->start_cts == AV_NOPTS_VALUE)
5248  trk->start_cts = pkt->pts - pkt->dts;
5249  if (trk->end_pts == AV_NOPTS_VALUE)
5250  trk->end_pts = trk->cluster[trk->entry].dts +
5251  trk->cluster[trk->entry].cts + pkt->duration;
5252  else
5253  trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
5254  trk->cluster[trk->entry].cts +
5255  pkt->duration);
5256 
5257  if (par->codec_id == AV_CODEC_ID_VC1) {
5258  mov_parse_vc1_frame(pkt, trk);
5259  } else if (pkt->flags & AV_PKT_FLAG_KEY) {
5260  if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
5261  trk->entry > 0) { // force sync sample for the first key frame
5262  mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
5263  if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
5264  trk->flags |= MOV_TRACK_STPS;
5265  } else {
5266  trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
5267  }
5268  if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
5269  trk->has_keyframes++;
5270  }
5271  trk->entry++;
5272  trk->sample_count += samples_in_chunk;
5273  mov->mdat_size += size;
5274 
5275  if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
5276  ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
5277  reformatted_data, size);
5278 
5279 end:
5280 err:
5281 
5282  av_free(reformatted_data);
5283  return ret;
5284 }
5285 
5286 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
5287 {
5288  MOVMuxContext *mov = s->priv_data;
5289  MOVTrack *trk = &mov->tracks[pkt->stream_index];
5290  AVCodecParameters *par = trk->par;
5291  int64_t frag_duration = 0;
5292  int size = pkt->size;
5293 
5294  int ret = check_pkt(s, pkt);
5295  if (ret < 0)
5296  return ret;
5297 
5298  if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
5299  int i;
5300  for (i = 0; i < s->nb_streams; i++)
5301  mov->tracks[i].frag_discont = 1;
5302  mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
5303  }
5304 
5305  if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) {
5306  if (trk->dts_shift == AV_NOPTS_VALUE)
5307  trk->dts_shift = pkt->pts - pkt->dts;
5308  pkt->dts += trk->dts_shift;
5309  }
5310 
5311  if (trk->par->codec_id == AV_CODEC_ID_MP4ALS ||
5312  trk->par->codec_id == AV_CODEC_ID_AAC ||
5313  trk->par->codec_id == AV_CODEC_ID_FLAC) {
5314  int side_size = 0;
5315  uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
5316  if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) {
5317  void *newextra = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE);
5318  if (!newextra)
5319  return AVERROR(ENOMEM);
5320  av_free(par->extradata);
5321  par->extradata = newextra;
5322  memcpy(par->extradata, side, side_size);
5323  par->extradata_size = side_size;
5324  if (!pkt->size) // Flush packet
5325  mov->need_rewrite_extradata = 1;
5326  }
5327  }
5328 
5329  if (!pkt->size) {
5330  if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
5331  trk->start_dts = pkt->dts;
5332  if (pkt->pts != AV_NOPTS_VALUE)
5333  trk->start_cts = pkt->pts - pkt->dts;
5334  else
5335  trk->start_cts = 0;
5336  }
5337 
5338  return 0; /* Discard 0 sized packets */
5339  }
5340 
5341  if (trk->entry && pkt->stream_index < s->nb_streams)
5342  frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
5343  s->streams[pkt->stream_index]->time_base,
5344  AV_TIME_BASE_Q);
5345  if ((mov->max_fragment_duration &&
5346  frag_duration >= mov->max_fragment_duration) ||
5347  (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
5348  (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
5349  par->codec_type == AVMEDIA_TYPE_VIDEO &&
5350  trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
5351  if (frag_duration >= mov->min_fragment_duration) {
5352  // Set the duration of this track to line up with the next
5353  // sample in this track. This avoids relying on AVPacket
5354  // duration, but only helps for this particular track, not
5355  // for the other ones that are flushed at the same time.
5356  trk->track_duration = pkt->dts - trk->start_dts;
5357  if (pkt->pts != AV_NOPTS_VALUE)
5358  trk->end_pts = pkt->pts;
5359  else
5360  trk->end_pts = pkt->dts;
5361  trk->end_reliable = 1;
5362  mov_auto_flush_fragment(s, 0);
5363  }
5364  }
5365 
5366  return ff_mov_write_packet(s, pkt);
5367 }
5368 
5369 static int mov_write_subtitle_end_packet(AVFormatContext *s,
5370  int stream_index,
5371  int64_t dts) {
5372  AVPacket end;
5373  uint8_t data[2] = {0};
5374  int ret;
5375 
5376  av_init_packet(&end);
5377  end.size = sizeof(data);
5378  end.data = data;
5379  end.pts = dts;
5380  end.dts = dts;
5381  end.duration = 0;
5382  end.stream_index = stream_index;
5383 
5384  ret = mov_write_single_packet(s, &end);
5385  av_packet_unref(&end);
5386 
5387  return ret;
5388 }
5389 
5390 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5391 {
5392  if (!pkt) {
5393  mov_flush_fragment(s, 1);
5394  return 1;
5395  } else {
5396  int i;
5397  MOVMuxContext *mov = s->priv_data;
5398  MOVTrack *trk = &mov->tracks[pkt->stream_index];
5399 
5400  if (!pkt->size)
5401  return mov_write_single_packet(s, pkt); /* Passthrough. */
5402 
5403  /*
5404  * Subtitles require special handling.
5405  *
5406  * 1) For full complaince, every track must have a sample at
5407  * dts == 0, which is rarely true for subtitles. So, as soon
5408  * as we see any packet with dts > 0, write an empty subtitle
5409  * at dts == 0 for any subtitle track with no samples in it.
5410  *
5411  * 2) For each subtitle track, check if the current packet's
5412  * dts is past the duration of the last subtitle sample. If
5413  * so, we now need to write an end sample for that subtitle.
5414  *
5415  * This must be done conditionally to allow for subtitles that
5416  * immediately replace each other, in which case an end sample
5417  * is not needed, and is, in fact, actively harmful.
5418  *
5419  * 3) See mov_write_trailer for how the final end sample is
5420  * handled.
5421  */
5422  for (i = 0; i < mov->nb_streams; i++) {
5423  MOVTrack *trk = &mov->tracks[i];
5424  int ret;
5425 
5426  if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
5427  trk->track_duration < pkt->dts &&
5428  (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
5429  ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
5430  if (ret < 0) return ret;
5431  trk->last_sample_is_subtitle_end = 1;
5432  }
5433  }
5434 
5435  if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) {
5436  AVPacket *opkt = pkt;
5437  int reshuffle_ret, ret;
5438  if (trk->is_unaligned_qt_rgb) {
5439  int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16;
5440  int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2;
5441  reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride);
5442  if (reshuffle_ret < 0)
5443  return reshuffle_ret;
5444  } else
5445  reshuffle_ret = 0;
5446  if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) {
5447  ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette);
5448  if (ret < 0)
5449  goto fail;
5450  if (ret)
5451  trk->pal_done++;
5452  } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
5453  (trk->par->format == AV_PIX_FMT_GRAY8 ||
5454  trk->par->format == AV_PIX_FMT_MONOBLACK)) {
5455  for (i = 0; i < pkt->size; i++)
5456  pkt->data[i] = ~pkt->data[i];
5457  }
5458  if (reshuffle_ret) {
5459  ret = mov_write_single_packet(s, pkt);
5460 fail:
5461  if (reshuffle_ret)
5462  av_packet_free(&pkt);
5463  return ret;
5464  }
5465  }
5466 
5467  return mov_write_single_packet(s, pkt);
5468  }
5469 }
5470 
5471 // QuickTime chapters involve an additional text track with the chapter names
5472 // as samples, and a tref pointing from the other tracks to the chapter one.
5473 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
5474 {
5475  AVIOContext *pb;
5476 
5477  MOVMuxContext *mov = s->priv_data;
5478  MOVTrack *track = &mov->tracks[tracknum];
5479  AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
5480  int i, len;
5481 
5482  track->mode = mov->mode;
5483  track->tag = MKTAG('t','e','x','t');
5484  track->timescale = MOV_TIMESCALE;
5485  track->par = avcodec_parameters_alloc();
5486  if (!track->par)
5487  return AVERROR(ENOMEM);
5488  track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
5489 #if 0
5490  // These properties are required to make QT recognize the chapter track
5491  uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
5492  if (ff_alloc_extradata(track->par, sizeof(chapter_properties)))
5493  return AVERROR(ENOMEM);
5494  memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
5495 #else
5496  if (avio_open_dyn_buf(&pb) >= 0) {
5497  int size;
5498  uint8_t *buf;
5499 
5500  /* Stub header (usually for Quicktime chapter track) */
5501  // TextSampleEntry
5502  avio_wb32(pb, 0x01); // displayFlags
5503  avio_w8(pb, 0x00); // horizontal justification
5504  avio_w8(pb, 0x00); // vertical justification
5505  avio_w8(pb, 0x00); // bgColourRed
5506  avio_w8(pb, 0x00); // bgColourGreen
5507  avio_w8(pb, 0x00); // bgColourBlue
5508  avio_w8(pb, 0x00); // bgColourAlpha
5509  // BoxRecord
5510  avio_wb16(pb, 0x00); // defTextBoxTop
5511  avio_wb16(pb, 0x00); // defTextBoxLeft
5512  avio_wb16(pb, 0x00); // defTextBoxBottom
5513  avio_wb16(pb, 0x00); // defTextBoxRight
5514  // StyleRecord
5515  avio_wb16(pb, 0x00); // startChar
5516  avio_wb16(pb, 0x00); // endChar
5517  avio_wb16(pb, 0x01); // fontID
5518  avio_w8(pb, 0x00); // fontStyleFlags
5519  avio_w8(pb, 0x00); // fontSize
5520  avio_w8(pb, 0x00); // fgColourRed
5521  avio_w8(pb, 0x00); // fgColourGreen
5522  avio_w8(pb, 0x00); // fgColourBlue
5523  avio_w8(pb, 0x00); // fgColourAlpha
5524  // FontTableBox
5525  avio_wb32(pb, 0x0D); // box size
5526  ffio_wfourcc(pb, "ftab"); // box atom name
5527  avio_wb16(pb, 0x01); // entry count
5528  // FontRecord
5529  avio_wb16(pb, 0x01); // font ID
5530  avio_w8(pb, 0x00); // font name length
5531 
5532  if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
5533  track->par->extradata = buf;
5534  track->par->extradata_size = size;
5535  } else {
5536  av_freep(&buf);
5537  }
5538  }
5539 #endif
5540 
5541  for (i = 0; i < s->nb_chapters; i++) {
5542  AVChapter *c = s->chapters[i];
5543  AVDictionaryEntry *t;
5544 
5545  int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
5546  pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
5547  pkt.duration = end - pkt.dts;
5548 
5549  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
5550  static const char encd[12] = {
5551  0x00, 0x00, 0x00, 0x0C,
5552  'e', 'n', 'c', 'd',
5553  0x00, 0x00, 0x01, 0x00 };
5554  len = strlen(t->value);
5555  pkt.size = len + 2 + 12;
5556  pkt.data = av_malloc(pkt.size);
5557  if (!pkt.data)
5558  return AVERROR(ENOMEM);
5559  AV_WB16(pkt.data, len);
5560  memcpy(pkt.data + 2, t->value, len);
5561  memcpy(pkt.data + len + 2, encd, sizeof(encd));
5562  ff_mov_write_packet(s, &pkt);
5563  av_freep(&pkt.data);
5564  }
5565  }
5566 
5567  return 0;
5568 }
5569 
5570 
5571 static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_index, const char *tcstr)
5572 {
5573  int ret;
5574 
5575  /* compute the frame number */
5576  ret = av_timecode_init_from_string(tc, find_fps(s, s->streams[src_index]), tcstr, s);
5577  return ret;
5578 }
5579 
5580 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc)
5581 {
5582  int ret;
5583  MOVMuxContext *mov = s->priv_data;
5584  MOVTrack *track = &mov->tracks[index];
5585  AVStream *src_st = s->streams[src_index];
5586  AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
5587  AVRational rate = find_fps(s, src_st);
5588 
5589  /* tmcd track based on video stream */
5590  track->mode = mov->mode;
5591  track->tag = MKTAG('t','m','c','d');
5592  track->src_track = src_index;
5593  track->timescale = mov->tracks[src_index].timescale;
5594  if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
5595  track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
5596 
5597  /* set st to src_st for metadata access*/
5598  track->st = src_st;
5599 
5600  /* encode context: tmcd data stream */
5601  track->par = avcodec_parameters_alloc();
5602  if (!track->par)
5603  return AVERROR(ENOMEM);
5604  track->par->codec_type = AVMEDIA_TYPE_DATA;
5605  track->par->codec_tag = track->tag;
5606  track->st->avg_frame_rate = av_inv_q(rate);
5607 
5608  /* the tmcd track just contains one packet with the frame number */
5609  pkt.data = av_malloc(pkt.size);
5610  if (!pkt.data)
5611  return AVERROR(ENOMEM);
5612  AV_WB32(pkt.data, tc.start);
5613  ret = ff_mov_write_packet(s, &pkt);
5614  av_free(pkt.data);
5615  return ret;
5616 }
5617 
5618 /*
5619  * st->disposition controls the "enabled" flag in the tkhd tag.
5620  * QuickTime will not play a track if it is not enabled. So make sure
5621  * that one track of each type (audio, video, subtitle) is enabled.
5622  *
5623  * Subtitles are special. For audio and video, setting "enabled" also
5624  * makes the track "default" (i.e. it is rendered when played). For
5625  * subtitles, an "enabled" subtitle is not rendered by default, but
5626  * if no subtitle is enabled, the subtitle menu in QuickTime will be
5627  * empty!
5628  */
5629 static void enable_tracks(AVFormatContext *s)
5630 {
5631  MOVMuxContext *mov = s->priv_data;
5632  int i;
5633  int enabled[AVMEDIA_TYPE_NB];
5634  int first[AVMEDIA_TYPE_NB];
5635 
5636  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
5637  enabled[i] = 0;
5638  first[i] = -1;
5639  }
5640 
5641  for (i = 0; i < s->nb_streams; i++) {
5642  AVStream *st = s->streams[i];
5643 
5644  if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
5645  st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
5646  continue;
5647 
5648  if (first[st->codecpar->codec_type] < 0)
5649  first[st->codecpar->codec_type] = i;
5650  if (st->disposition & AV_DISPOSITION_DEFAULT) {
5651  mov->tracks[i].flags |= MOV_TRACK_ENABLED;
5652  enabled[st->codecpar->codec_type]++;
5653  }
5654  }
5655 
5656  for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
5657  switch (i) {
5658  case AVMEDIA_TYPE_VIDEO:
5659  case AVMEDIA_TYPE_AUDIO:
5660  case AVMEDIA_TYPE_SUBTITLE:
5661  if (enabled[i] > 1)
5662  mov->per_stream_grouping = 1;
5663  if (!enabled[i] && first[i] >= 0)
5664  mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
5665  break;
5666  }
5667  }
5668 }
5669 
5670 static void mov_free(AVFormatContext *s)
5671 {
5672  MOVMuxContext *mov = s->priv_data;
5673  int i;
5674 
5675  if (mov->chapter_track) {
5676  if (mov->tracks[mov->chapter_track].par)
5677  av_freep(&mov->tracks[mov->chapter_track].par->extradata);
5678  av_freep(&mov->tracks[mov->chapter_track].par);
5679  }
5680 
5681  for (i = 0; i < mov->nb_streams; i++) {
5682  if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
5683  ff_mov_close_hinting(&mov->tracks[i]);
5684  else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
5685  av_freep(&mov->tracks[i].par);
5686  av_freep(&mov->tracks[i].cluster);
5687  av_freep(&mov->tracks[i].frag_info);
5688 
5689  if (mov->tracks[i].vos_len)
5690  av_freep(&mov->tracks[i].vos_data);
5691 
5692  ff_mov_cenc_free(&mov->tracks[i].cenc);
5693  }
5694 
5695  av_freep(&mov->tracks);
5696 }
5697 
5698 static uint32_t rgb_to_yuv(uint32_t rgb)
5699 {
5700  uint8_t r, g, b;
5701  int y, cb, cr;
5702 
5703  r = (rgb >> 16) & 0xFF;
5704  g = (rgb >> 8) & 0xFF;
5705  b = (rgb ) & 0xFF;
5706 
5707  y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
5708  cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
5709  cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
5710 
5711  return (y << 16) | (cr << 8) | cb;
5712 }
5713 
5714 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
5715  AVStream *st)
5716 {
5717  int i, width = 720, height = 480;
5718  int have_palette = 0, have_size = 0;
5719  uint32_t palette[16];
5720  char *cur = st->codecpar->extradata;
5721 
5722  while (cur && *cur) {
5723  if (strncmp("palette:", cur, 8) == 0) {
5724  int i, count;
5725  count = sscanf(cur + 8,
5726  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5727  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5728  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5729  "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
5730  &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
5731  &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
5732  &palette[ 8], &palette[ 9], &palette[10], &palette[11],
5733  &palette[12], &palette[13], &palette[14], &palette[15]);
5734 
5735  for (i = 0; i < count; i++) {
5736  palette[i] = rgb_to_yuv(palette[i]);
5737  }
5738  have_palette = 1;
5739  } else if (!strncmp("size:", cur, 5)) {
5740  sscanf(cur + 5, "%dx%d", &width, &height);
5741  have_size = 1;
5742  }
5743  if (have_palette && have_size)
5744  break;
5745  cur += strcspn(cur, "\n\r");
5746  cur += strspn(cur, "\n\r");
5747  }
5748  if (have_palette) {
5749  track->vos_data = av_malloc(16*4);
5750  if (!track->vos_data)
5751  return AVERROR(ENOMEM);
5752  for (i = 0; i < 16; i++) {
5753  AV_WB32(track->vos_data + i * 4, palette[i]);
5754  }
5755  track->vos_len = 16 * 4;
5756  }
5757  st->codecpar->width = width;
5758  st->codecpar->height = track->height = height;
5759 
5760  return 0;
5761 }
5762 
5763 static int mov_init(AVFormatContext *s)
5764 {
5765  MOVMuxContext *mov = s->priv_data;
5766  AVDictionaryEntry *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
5767  int i, ret;
5768 
5769  mov->fc = s;
5770 
5771  /* Default mode == MP4 */
5772  mov->mode = MODE_MP4;
5773 
5774  if (s->oformat) {
5775  if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
5776  else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
5777  else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
5778  else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
5779  else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
5780  else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
5781  else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
5782  }
5783 
5784  if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5785  mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
5786 
5787  /* Set the FRAGMENT flag if any of the fragmentation methods are
5788  * enabled. */
5789  if (mov->max_fragment_duration || mov->max_fragment_size ||
5790  mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
5791  FF_MOV_FLAG_FRAG_KEYFRAME |
5792  FF_MOV_FLAG_FRAG_CUSTOM))
5793  mov->flags |= FF_MOV_FLAG_FRAGMENT;
5794 
5795  /* Set other implicit flags immediately */
5796  if (mov->mode == MODE_ISM)
5797  mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
5798  FF_MOV_FLAG_FRAGMENT;
5799  if (mov->flags & FF_MOV_FLAG_DASH)
5800  mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
5801  FF_MOV_FLAG_DEFAULT_BASE_MOOF;
5802 
5803  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && s->flags & AVFMT_FLAG_AUTO_BSF) {
5804  av_log(s, AV_LOG_VERBOSE, "Empty MOOV enabled; disabling automatic bitstream filtering\n");
5805  s->flags &= ~AVFMT_FLAG_AUTO_BSF;
5806  }
5807 
5808  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5809  mov->reserved_moov_size = -1;
5810  }
5811 
5812  if (mov->use_editlist < 0) {
5813  mov->use_editlist = 1;
5814  if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5815  !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5816  // If we can avoid needing an edit list by shifting the
5817  // tracks, prefer that over (trying to) write edit lists
5818  // in fragmented output.
5819  if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
5820  s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
5821  mov->use_editlist = 0;
5822  }
5823  }
5824  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5825  !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
5826  av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
5827 
5828  if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
5829  s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
5830 
5831  /* Clear the omit_tfhd_offset flag if default_base_moof is set;
5832  * if the latter is set that's enough and omit_tfhd_offset doesn't
5833  * add anything extra on top of that. */
5834  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
5835  mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5836  mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
5837 
5838  if (mov->frag_interleave &&
5839  mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
5840  av_log(s, AV_LOG_ERROR,
5841  "Sample interleaving in fragments is mutually exclusive with "
5842  "omit_tfhd_offset and separate_moof\n");
5843  return AVERROR(EINVAL);
5844  }
5845 
5846  /* Non-seekable output is ok if using fragmentation. If ism_lookahead
5847  * is enabled, we don't support non-seekable output at all. */
5848  if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
5849  (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
5850  av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
5851  return AVERROR(EINVAL);
5852  }
5853 
5854  mov->nb_streams = s->nb_streams;
5855  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
5856  mov->chapter_track = mov->nb_streams++;
5857 
5858  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5859  /* Add hint tracks for each audio and video stream */
5860  for (i = 0; i < s->nb_streams; i++) {
5861  AVStream *st = s->streams[i];
5862  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
5863  st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5864  mov->nb_streams++;
5865  }
5866  }
5867  }
5868 
5869  if ( mov->write_tmcd == -1 && (mov->mode == MODE_MOV || mov->mode == MODE_MP4)
5870  || mov->write_tmcd == 1) {
5871  /* +1 tmcd track for each video stream with a timecode */
5872  for (i = 0; i < s->nb_streams; i++) {
5873  AVStream *st = s->streams[i];
5874  AVDictionaryEntry *t = global_tcr;
5875  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
5876  (t || (t=av_dict_get(st->metadata, "timecode", NULL, 0)))) {
5877  AVTimecode tc;
5878  ret = mov_check_timecode_track(s, &tc, i, t->value);
5879  if (ret >= 0)
5880  mov->nb_meta_tmcd++;
5881  }
5882  }
5883 
5884  /* check if there is already a tmcd track to remux */
5885  if (mov->nb_meta_tmcd) {
5886  for (i = 0; i < s->nb_streams; i++) {
5887  AVStream *st = s->streams[i];
5888  if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
5889  av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
5890  "so timecode metadata are now ignored\n");
5891  mov->nb_meta_tmcd = 0;
5892  }
5893  }
5894  }
5895 
5896  mov->nb_streams += mov->nb_meta_tmcd;
5897  }
5898 
5899  // Reserve an extra stream for chapters for the case where chapters
5900  // are written in the trailer
5901  mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
5902  if (!mov->tracks)
5903  return AVERROR(ENOMEM);
5904 
5905  if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
5906  if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
5907  mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
5908 
5909  if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
5910  av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
5911  mov->encryption_key_len, AES_CTR_KEY_SIZE);
5912  return AVERROR(EINVAL);
5913  }
5914 
5915  if (mov->encryption_kid_len != CENC_KID_SIZE) {
5916  av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
5917  mov->encryption_kid_len, CENC_KID_SIZE);
5918  return AVERROR(EINVAL);
5919  }
5920  } else {
5921  av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
5922  mov->encryption_scheme_str);
5923  return AVERROR(EINVAL);
5924  }
5925  }
5926 
5927  for (i = 0; i < s->nb_streams; i++) {
5928  AVStream *st= s->streams[i];
5929  MOVTrack *track= &mov->tracks[i];
5930  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
5931 
5932  track->st = st;
5933  track->par = st->codecpar;
5934  track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
5935  if (track->language < 0)
5936  track->language = 0;
5937  track->mode = mov->mode;
5938  track->tag = mov_find_codec_tag(s, track);
5939  if (!track->tag) {
5940  av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
5941  "codec not currently supported in container\n",
5942  avcodec_get_name(st->codecpar->codec_id), i);
5943  return AVERROR(EINVAL);
5944  }
5945  /* If hinting of this track is enabled by a later hint track,
5946  * this is updated. */
5947  track->hint_track = -1;
5948  track->start_dts = AV_NOPTS_VALUE;
5949  track->start_cts = AV_NOPTS_VALUE;
5950  track->end_pts = AV_NOPTS_VALUE;
5951  track->dts_shift = AV_NOPTS_VALUE;
5952  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5953  if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
5954  track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
5955  track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
5956  if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
5957  av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
5958  return AVERROR(EINVAL);
5959  }
5960  track->height = track->tag >> 24 == 'n' ? 486 : 576;
5961  }
5962  if (mov->video_track_timescale) {
5963  track->timescale = mov->video_track_timescale;
5964  } else {
5965  track->timescale = st->time_base.den;
5966  while(track->timescale < 10000)
5967  track->timescale *= 2;
5968  }
5969  if (st->codecpar->width > 65535 || st->codecpar->height > 65535) {
5970  av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height);
5971  return AVERROR(EINVAL);
5972  }
5973  if (track->mode == MODE_MOV && track->timescale > 100000)
5974  av_log(s, AV_LOG_WARNING,
5975  "WARNING codec timebase is very high. If duration is too long,\n"
5976  "file may not be playable by quicktime. Specify a shorter timebase\n"
5977  "or choose different container.\n");
5978  if (track->mode == MODE_MOV &&
5979  track->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
5980  track->tag == MKTAG('r','a','w',' ')) {
5981  enum AVPixelFormat pix_fmt = track->par->format;
5982  if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1)
5983  pix_fmt = AV_PIX_FMT_MONOWHITE;
5984  track->is_unaligned_qt_rgb =
5985  pix_fmt == AV_PIX_FMT_RGB24 ||
5986  pix_fmt == AV_PIX_FMT_BGR24 ||
5987  pix_fmt == AV_PIX_FMT_PAL8 ||
5988  pix_fmt == AV_PIX_FMT_GRAY8 ||
5989  pix_fmt == AV_PIX_FMT_MONOWHITE ||
5990  pix_fmt == AV_PIX_FMT_MONOBLACK;
5991  }
5992  if (track->par->codec_id == AV_CODEC_ID_VP9) {
5993  if (track->mode != MODE_MP4) {
5994  av_log(s, AV_LOG_ERROR, "VP9 only supported in MP4.\n");
5995  return AVERROR(EINVAL);
5996  }
5997  }
5998  } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5999  track->timescale = st->codecpar->sample_rate;
6000  if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) {
6001  av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
6002  track->audio_vbr = 1;
6003  }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS ||
6004  st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
6005  st->codecpar->codec_id == AV_CODEC_ID_ILBC){
6006  if (!st->codecpar->block_align) {
6007  av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
6008  return AVERROR(EINVAL);
6009  }
6010  track->sample_size = st->codecpar->block_align;
6011  }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */
6012  track->audio_vbr = 1;
6013  }else{
6014  track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->channels;
6015  }
6016  if (st->codecpar->codec_id == AV_CODEC_ID_ILBC ||
6017  st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
6018  track->audio_vbr = 1;
6019  }
6020  if (track->mode != MODE_MOV &&
6021  track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
6022  if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
6023  av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
6024  i, track->par->sample_rate);
6025  return AVERROR(EINVAL);
6026  } else {
6027  av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
6028  i, track->par->sample_rate);
6029  }
6030  }
6031  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
6032  track->par->codec_id == AV_CODEC_ID_OPUS) {
6033  if (track->mode != MODE_MP4) {
6034  av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6035  return AVERROR(EINVAL);
6036  }
6037  if (s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
6038  av_log(s, AV_LOG_ERROR,
6039  "%s in MP4 support is experimental, add "
6040  "'-strict %d' if you want to use it.\n",
6041  avcodec_get_name(track->par->codec_id), FF_COMPLIANCE_EXPERIMENTAL);
6042  return AVERROR_EXPERIMENTAL;
6043  }
6044  }
6045  } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
6046  track->timescale = st->time_base.den;
6047  } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
6048  track->timescale = st->time_base.den;
6049  } else {
6050  track->timescale = MOV_TIMESCALE;
6051  }
6052  if (!track->height)
6053  track->height = st->codecpar->height;
6054  /* The ism specific timescale isn't mandatory, but is assumed by
6055  * some tools, such as mp4split. */
6056  if (mov->mode == MODE_ISM)
6057  track->timescale = 10000000;
6058 
6059  avpriv_set_pts_info(st, 64, 1, track->timescale);
6060 
6061  if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
6062  ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
6063  track->par->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
6064  if (ret)
6065  return ret;
6066  }
6067  }
6068 
6069  enable_tracks(s);
6070  return 0;
6071 }
6072 
6073 static int mov_write_header(AVFormatContext *s)
6074 {
6075  AVIOContext *pb = s->pb;
6076  MOVMuxContext *mov = s->priv_data;
6077  AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
6078  int i, ret, hint_track = 0, tmcd_track = 0, nb_tracks = s->nb_streams;
6079 
6080  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6081  nb_tracks++;
6082 
6083  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6084  /* Add hint tracks for each audio and video stream */
6085  hint_track = nb_tracks;
6086  for (i = 0; i < s->nb_streams; i++) {
6087  AVStream *st = s->streams[i];
6088  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
6089  st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
6090  nb_tracks++;
6091  }
6092  }
6093  }
6094 
6095  if (mov->mode == MODE_MOV || mov->mode == MODE_MP4)
6096  tmcd_track = nb_tracks;
6097 
6098  for (i = 0; i < s->nb_streams; i++) {
6099  int j;
6100  AVStream *st= s->streams[i];
6101  MOVTrack *track= &mov->tracks[i];
6102 
6103  /* copy extradata if it exists */
6104  if (st->codecpar->extradata_size) {
6105  if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
6106  mov_create_dvd_sub_decoder_specific_info(track, st);
6107  else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) {
6108  track->vos_len = st->codecpar->extradata_size;
6109  track->vos_data = av_malloc(track->vos_len);
6110  if (!track->vos_data) {
6111  return AVERROR(ENOMEM);
6112  }
6113  memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
6114  }
6115  }
6116 
6117  if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6118  track->par->channel_layout != AV_CH_LAYOUT_MONO)
6119  continue;
6120 
6121  for (j = 0; j < s->nb_streams; j++) {
6122  AVStream *stj= s->streams[j];
6123  MOVTrack *trackj= &mov->tracks[j];
6124  if (j == i)
6125  continue;
6126 
6127  if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6128  trackj->par->channel_layout != AV_CH_LAYOUT_MONO ||
6129  trackj->language != track->language ||
6130  trackj->tag != track->tag
6131  )
6132  continue;
6133  track->multichannel_as_mono++;
6134  }
6135  }
6136 
6137  if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6138  if ((ret = mov_write_identification(pb, s)) < 0)
6139  return ret;
6140  }
6141 
6142  if (mov->reserved_moov_size){
6143  mov->reserved_header_pos = avio_tell(pb);
6144  if (mov->reserved_moov_size > 0)
6145  avio_skip(pb, mov->reserved_moov_size);
6146  }
6147 
6148  if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
6149  /* If no fragmentation options have been set, set a default. */
6150  if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
6151  FF_MOV_FLAG_FRAG_CUSTOM)) &&
6152  !mov->max_fragment_duration && !mov->max_fragment_size)
6153  mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
6154  } else {
6155  if (mov->flags & FF_MOV_FLAG_FASTSTART)
6156  mov->reserved_header_pos = avio_tell(pb);
6157  mov_write_mdat_tag(pb, mov);
6158  }
6159 
6160  ff_parse_creation_time_metadata(s, &mov->time, 1);
6161  if (mov->time)
6162  mov->time += 0x7C25B080; // 1970 based -> 1904 based
6163 
6164  if (mov->chapter_track)
6165  if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
6166  return ret;
6167 
6168  if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6169  /* Initialize the hint tracks for each audio and video stream */
6170  for (i = 0; i < s->nb_streams; i++) {
6171  AVStream *st = s->streams[i];
6172  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
6173  st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
6174  if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
6175  return ret;
6176  hint_track++;
6177  }
6178  }
6179  }
6180 
6181  if (mov->nb_meta_tmcd) {
6182  /* Initialize the tmcd tracks */
6183  for (i = 0; i < s->nb_streams; i++) {
6184  AVStream *st = s->streams[i];
6185  t = global_tcr;
6186 
6187  if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6188  AVTimecode tc;
6189  if (!t)
6190  t = av_dict_get(st->metadata, "timecode", NULL, 0);
6191  if (!t)
6192  continue;
6193  if (mov_check_timecode_track(s, &tc, i, t->value) < 0)
6194  continue;
6195  if ((ret = mov_create_timecode_track(s, tmcd_track, i, tc)) < 0)
6196  return ret;
6197  tmcd_track++;
6198  }
6199  }
6200  }
6201 
6202  avio_flush(pb);
6203 
6204  if (mov->flags & FF_MOV_FLAG_ISML)
6205  mov_write_isml_manifest(pb, mov, s);
6206 
6207  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6208  !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6209  if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
6210  return ret;
6211  avio_flush(pb);
6212  mov->moov_written = 1;
6213  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
6214  mov->reserved_header_pos = avio_tell(pb);
6215  }
6216 
6217  return 0;
6218 }
6219 
6220 static int get_moov_size(AVFormatContext *s)
6221 {
6222  int ret;
6223  AVIOContext *moov_buf;
6224  MOVMuxContext *mov = s->priv_data;
6225 
6226  if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
6227  return ret;
6228  if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
6229  return ret;
6230  return ffio_close_null_buf(moov_buf);
6231 }
6232 
6233 static int get_sidx_size(AVFormatContext *s)
6234 {
6235  int ret;
6236  AVIOContext *buf;
6237  MOVMuxContext *mov = s->priv_data;
6238 
6239  if ((ret = ffio_open_null_buf(&buf)) < 0)
6240  return ret;
6241  mov_write_sidx_tags(buf, mov, -1, 0);
6242  return ffio_close_null_buf(buf);
6243 }
6244 
6245 /*
6246  * This function gets the moov size if moved to the top of the file: the chunk
6247  * offset table can switch between stco (32-bit entries) to co64 (64-bit
6248  * entries) when the moov is moved to the beginning, so the size of the moov
6249  * would change. It also updates the chunk offset tables.
6250  */
6251 static int compute_moov_size(AVFormatContext *s)
6252 {
6253  int i, moov_size, moov_size2;
6254  MOVMuxContext *mov = s->priv_data;
6255 
6256  moov_size = get_moov_size(s);
6257  if (moov_size < 0)
6258  return moov_size;
6259 
6260  for (i = 0; i < mov->nb_streams; i++)
6261  mov->tracks[i].data_offset += moov_size;
6262 
6263  moov_size2 = get_moov_size(s);
6264  if (moov_size2 < 0)
6265  return moov_size2;
6266 
6267  /* if the size changed, we just switched from stco to co64 and need to
6268  * update the offsets */
6269  if (moov_size2 != moov_size)
6270  for (i = 0; i < mov->nb_streams; i++)
6271  mov->tracks[i].data_offset += moov_size2 - moov_size;
6272 
6273  return moov_size2;
6274 }
6275 
6276 static int compute_sidx_size(AVFormatContext *s)
6277 {
6278  int i, sidx_size;
6279  MOVMuxContext *mov = s->priv_data;
6280 
6281  sidx_size = get_sidx_size(s);
6282  if (sidx_size < 0)
6283  return sidx_size;
6284 
6285  for (i = 0; i < mov->nb_streams; i++)
6286  mov->tracks[i].data_offset += sidx_size;
6287 
6288  return sidx_size;
6289 }
6290 
6291 static int shift_data(AVFormatContext *s)
6292 {
6293  int ret = 0, moov_size;
6294  MOVMuxContext *mov = s->priv_data;
6295  int64_t pos, pos_end = avio_tell(s->pb);
6296  uint8_t *buf, *read_buf[2];
6297  int read_buf_id = 0;
6298  int read_size[2];
6299  AVIOContext *read_pb;
6300 
6301  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
6302  moov_size = compute_sidx_size(s);
6303  else
6304  moov_size = compute_moov_size(s);
6305  if (moov_size < 0)
6306  return moov_size;
6307 
6308  buf = av_malloc(moov_size * 2);
6309  if (!buf)
6310  return AVERROR(ENOMEM);
6311  read_buf[0] = buf;
6312  read_buf[1] = buf + moov_size;
6313 
6314  /* Shift the data: the AVIO context of the output can only be used for
6315  * writing, so we re-open the same output, but for reading. It also avoids
6316  * a read/seek/write/seek back and forth. */
6317  avio_flush(s->pb);
6318  ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
6319  if (ret < 0) {
6320  av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
6321  "the second pass (faststart)\n", s->filename);
6322  goto end;
6323  }
6324 
6325  /* mark the end of the shift to up to the last data we wrote, and get ready
6326  * for writing */
6327  pos_end = avio_tell(s->pb);
6328  avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
6329 
6330  /* start reading at where the new moov will be placed */
6331  avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
6332  pos = avio_tell(read_pb);
6333 
6334 #define READ_BLOCK do { \
6335  read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
6336  read_buf_id ^= 1; \
6337 } while (0)
6338 
6339  /* shift data by chunk of at most moov_size */
6340  READ_BLOCK;
6341  do {
6342  int n;
6343  READ_BLOCK;
6344  n = read_size[read_buf_id];
6345  if (n <= 0)
6346  break;
6347  avio_write(s->pb, read_buf[read_buf_id], n);
6348  pos += n;
6349  } while (pos < pos_end);
6350  ff_format_io_close(s, &read_pb);
6351 
6352 end:
6353  av_free(buf);
6354  return ret;
6355 }
6356 
6357 static int mov_write_trailer(AVFormatContext *s)
6358 {
6359  MOVMuxContext *mov = s->priv_data;
6360  AVIOContext *pb = s->pb;
6361  int res = 0;
6362  int i;
6363  int64_t moov_pos;
6364 
6365  if (mov->need_rewrite_extradata) {
6366  for (i = 0; i < s->nb_streams; i++) {
6367  MOVTrack *track = &mov->tracks[i];
6368  AVCodecParameters *par = track->par;
6369 
6370  track->vos_len = par->extradata_size;
6371  track->vos_data = av_malloc(track->vos_len);
6372  if (!track->vos_data)
6373  return AVERROR(ENOMEM);
6374  memcpy(track->vos_data, par->extradata, track->vos_len);
6375  }
6376  mov->need_rewrite_extradata = 0;
6377  }
6378 
6379  /*
6380  * Before actually writing the trailer, make sure that there are no
6381  * dangling subtitles, that need a terminating sample.
6382  */
6383  for (i = 0; i < mov->nb_streams; i++) {
6384  MOVTrack *trk = &mov->tracks[i];
6385  if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
6386  !trk->last_sample_is_subtitle_end) {
6387  mov_write_subtitle_end_packet(s, i, trk->track_duration);
6388  trk->last_sample_is_subtitle_end = 1;
6389  }
6390  }
6391 
6392  // If there were no chapters when the header was written, but there
6393  // are chapters now, write them in the trailer. This only works
6394  // when we are not doing fragments.
6395  if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
6396  if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
6397  mov->chapter_track = mov->nb_streams++;
6398  if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
6399  return res;
6400  }
6401  }
6402 
6403  if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
6404  moov_pos = avio_tell(pb);
6405 
6406  /* Write size of mdat tag */
6407  if (mov->mdat_size + 8 <= UINT32_MAX) {
6408  avio_seek(pb, mov->mdat_pos, SEEK_SET);
6409  avio_wb32(pb, mov->mdat_size + 8);
6410  } else {
6411  /* overwrite 'wide' placeholder atom */
6412  avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
6413  /* special value: real atom size will be 64 bit value after
6414  * tag field */
6415  avio_wb32(pb, 1);
6416  ffio_wfourcc(pb, "mdat");
6417  avio_wb64(pb, mov->mdat_size + 16);
6418  }
6419  avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
6420 
6421  if (mov->flags & FF_MOV_FLAG_FASTSTART) {
6422  av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
6423  res = shift_data(s);
6424  if (res < 0)
6425  return res;
6426  avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
6427  if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
6428  return res;
6429  } else if (mov->reserved_moov_size > 0) {
6430  int64_t size;
6431  if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
6432  return res;
6433  size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
6434  if (size < 8){
6435  av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
6436  return AVERROR(EINVAL);
6437  }
6438  avio_wb32(pb, size);
6439  ffio_wfourcc(pb, "free");
6440  ffio_fill(pb, 0, size - 8);
6441  avio_seek(pb, moov_pos, SEEK_SET);
6442  } else {
6443  if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
6444  return res;
6445  }
6446  res = 0;
6447  } else {
6448  mov_auto_flush_fragment(s, 1);
6449  for (i = 0; i < mov->nb_streams; i++)
6450  mov->tracks[i].data_offset = 0;
6451  if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
6452  int64_t end;
6453  av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
6454  res = shift_data(s);
6455  if (res < 0)
6456  return res;
6457  end = avio_tell(pb);
6458  avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
6459  mov_write_sidx_tags(pb, mov, -1, 0);
6460  avio_seek(pb, end, SEEK_SET);
6461  avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
6462  mov_write_mfra_tag(pb, mov);
6463  } else if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
6464  avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
6465  mov_write_mfra_tag(pb, mov);
6466  }
6467  }
6468 
6469  return res;
6470 }
6471 
6472 static int mov_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
6473 {
6474  int ret = 1;
6475  AVStream *st = s->streams[pkt->stream_index];
6476 
6477  if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
6478  if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
6479  ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
6480  } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) {
6481  ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL);
6482  }
6483 
6484  return ret;
6485 }
6486 
6487 static const AVCodecTag codec_3gp_tags[] = {
6488  { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
6489  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
6490  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
6491  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
6492  { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
6493  { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
6494  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
6495  { AV_CODEC_ID_NONE, 0 },
6496 };
6497 
6498 const AVCodecTag codec_mp4_tags[] = {
6499  { AV_CODEC_ID_MPEG4 , MKTAG('m', 'p', '4', 'v') },
6500  { AV_CODEC_ID_H264 , MKTAG('a', 'v', 'c', '1') },
6501  { AV_CODEC_ID_HEVC , MKTAG('h', 'e', 'v', '1') },
6502  { AV_CODEC_ID_HEVC , MKTAG('h', 'v', 'c', '1') },
6503  { AV_CODEC_ID_MPEG2VIDEO , MKTAG('m', 'p', '4', 'v') },
6504  { AV_CODEC_ID_MPEG1VIDEO , MKTAG('m', 'p', '4', 'v') },
6505  { AV_CODEC_ID_MJPEG , MKTAG('m', 'p', '4', 'v') },
6506  { AV_CODEC_ID_PNG , MKTAG('m', 'p', '4', 'v') },
6507  { AV_CODEC_ID_JPEG2000 , MKTAG('m', 'p', '4', 'v') },
6508  { AV_CODEC_ID_VC1 , MKTAG('v', 'c', '-', '1') },
6509  { AV_CODEC_ID_DIRAC , MKTAG('d', 'r', 'a', 'c') },
6510  { AV_CODEC_ID_TSCC2 , MKTAG('m', 'p', '4', 'v') },
6511  { AV_CODEC_ID_VP9 , MKTAG('v', 'p', '0', '9') },
6512  { AV_CODEC_ID_AAC , MKTAG('m', 'p', '4', 'a') },
6513  { AV_CODEC_ID_MP4ALS , MKTAG('m', 'p', '4', 'a') },
6514  { AV_CODEC_ID_MP3 , MKTAG('m', 'p', '4', 'a') },
6515  { AV_CODEC_ID_MP2 , MKTAG('m', 'p', '4', 'a') },
6516  { AV_CODEC_ID_AC3 , MKTAG('a', 'c', '-', '3') },
6517  { AV_CODEC_ID_EAC3 , MKTAG('e', 'c', '-', '3') },
6518  { AV_CODEC_ID_DTS , MKTAG('m', 'p', '4', 'a') },
6519  { AV_CODEC_ID_FLAC , MKTAG('f', 'L', 'a', 'C') },
6520  { AV_CODEC_ID_OPUS , MKTAG('O', 'p', 'u', 's') },
6521  { AV_CODEC_ID_VORBIS , MKTAG('m', 'p', '4', 'a') },
6522  { AV_CODEC_ID_QCELP , MKTAG('m', 'p', '4', 'a') },
6523  { AV_CODEC_ID_EVRC , MKTAG('m', 'p', '4', 'a') },
6524  { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('m', 'p', '4', 's') },
6525  { AV_CODEC_ID_MOV_TEXT , MKTAG('t', 'x', '3', 'g') },
6526  { AV_CODEC_ID_NONE , 0 },
6527 };
6528 
6529 const AVCodecTag codec_ism_tags[] = {
6530  { AV_CODEC_ID_WMAPRO , MKTAG('w', 'm', 'a', ' ') },
6531  { AV_CODEC_ID_NONE , 0 },
6532 };
6533 
6534 static const AVCodecTag codec_ipod_tags[] = {
6535  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
6536  { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
6537  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
6538  { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
6539  { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
6540  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
6541  { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
6542  { AV_CODEC_ID_NONE, 0 },
6543 };
6544 
6545 static const AVCodecTag codec_f4v_tags[] = {
6546  { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
6547  { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
6548  { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
6549  { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
6550  { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
6551  { AV_CODEC_ID_NONE, 0 },
6552 };
6553 
6554 #if CONFIG_MOV_MUXER
6555 MOV_CLASS(mov)
6556 AVOutputFormat ff_mov_muxer = {
6557  .name = "mov",
6558  .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
6559  .extensions = "mov",
6560  .priv_data_size = sizeof(MOVMuxContext),
6561  .audio_codec = AV_CODEC_ID_AAC,
6562  .video_codec = CONFIG_LIBX264_ENCODER ?
6563  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
6564  .init = mov_init,
6565  .write_header = mov_write_header,
6566  .write_packet = mov_write_packet,
6567  .write_trailer = mov_write_trailer,
6568  .deinit = mov_free,
6569  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6570  .codec_tag = (const AVCodecTag* const []){
6571  ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
6572  },
6573  .check_bitstream = mov_check_bitstream,
6574  .priv_class = &mov_muxer_class,
6575 };
6576 #endif
6577 #if CONFIG_TGP_MUXER
6578 MOV_CLASS(tgp)
6579 AVOutputFormat ff_tgp_muxer = {
6580  .name = "3gp",
6581  .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
6582  .extensions = "3gp",
6583  .priv_data_size = sizeof(MOVMuxContext),
6584  .audio_codec = AV_CODEC_ID_AMR_NB,
6585  .video_codec = AV_CODEC_ID_H263,
6586  .init = mov_init,
6587  .write_header = mov_write_header,
6588  .write_packet = mov_write_packet,
6589  .write_trailer = mov_write_trailer,
6590  .deinit = mov_free,
6591  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6592  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
6593  .check_bitstream = mov_check_bitstream,
6594  .priv_class = &tgp_muxer_class,
6595 };
6596 #endif
6597 #if CONFIG_MP4_MUXER
6598 MOV_CLASS(mp4)
6599 AVOutputFormat ff_mp4_muxer = {
6600  .name = "mp4",
6601  .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
6602  .mime_type = "video/mp4",
6603  .extensions = "mp4",
6604  .priv_data_size = sizeof(MOVMuxContext),
6605  .audio_codec = AV_CODEC_ID_AAC,
6606  .video_codec = CONFIG_LIBX264_ENCODER ?
6607  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
6608  .init = mov_init,
6609  .write_header = mov_write_header,
6610  .write_packet = mov_write_packet,
6611  .write_trailer = mov_write_trailer,
6612  .deinit = mov_free,
6613  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6614  .codec_tag = (const AVCodecTag* const []){ codec_mp4_tags, 0 },
6615  .check_bitstream = mov_check_bitstream,
6616  .priv_class = &mp4_muxer_class,
6617 };
6618 #endif
6619 #if CONFIG_PSP_MUXER
6620 MOV_CLASS(psp)
6621 AVOutputFormat ff_psp_muxer = {
6622  .name = "psp",
6623  .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
6624  .extensions = "mp4,psp",
6625  .priv_data_size = sizeof(MOVMuxContext),
6626  .audio_codec = AV_CODEC_ID_AAC,
6627  .video_codec = CONFIG_LIBX264_ENCODER ?
6628  AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
6629  .init = mov_init,
6630  .write_header = mov_write_header,
6631  .write_packet = mov_write_packet,
6632  .write_trailer = mov_write_trailer,
6633  .deinit = mov_free,
6634  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6635  .codec_tag = (const AVCodecTag* const []){ codec_mp4_tags, 0 },
6636  .check_bitstream = mov_check_bitstream,
6637  .priv_class = &psp_muxer_class,
6638 };
6639 #endif
6640 #if CONFIG_TG2_MUXER
6641 MOV_CLASS(tg2)
6642 AVOutputFormat ff_tg2_muxer = {
6643  .name = "3g2",
6644  .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
6645  .extensions = "3g2",
6646  .priv_data_size = sizeof(MOVMuxContext),
6647  .audio_codec = AV_CODEC_ID_AMR_NB,
6648  .video_codec = AV_CODEC_ID_H263,
6649  .init = mov_init,
6650  .write_header = mov_write_header,
6651  .write_packet = mov_write_packet,
6652  .write_trailer = mov_write_trailer,
6653  .deinit = mov_free,
6654  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6655  .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
6656  .check_bitstream = mov_check_bitstream,
6657  .priv_class = &tg2_muxer_class,
6658 };
6659 #endif
6660 #if CONFIG_IPOD_MUXER
6661 MOV_CLASS(ipod)
6662 AVOutputFormat ff_ipod_muxer = {
6663  .name = "ipod",
6664  .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
6665  .mime_type = "video/mp4",
6666  .extensions = "m4v,m4a",
6667  .priv_data_size = sizeof(MOVMuxContext),
6668  .audio_codec = AV_CODEC_ID_AAC,
6669  .video_codec = AV_CODEC_ID_H264,
6670  .init = mov_init,
6671  .write_header = mov_write_header,
6672  .write_packet = mov_write_packet,
6673  .write_trailer = mov_write_trailer,
6674  .deinit = mov_free,
6675  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6676  .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
6677  .check_bitstream = mov_check_bitstream,
6678  .priv_class = &ipod_muxer_class,
6679 };
6680 #endif
6681 #if CONFIG_ISMV_MUXER
6682 MOV_CLASS(ismv)
6683 AVOutputFormat ff_ismv_muxer = {
6684  .name = "ismv",
6685  .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
6686  .mime_type = "video/mp4",
6687  .extensions = "ismv,isma",
6688  .priv_data_size = sizeof(MOVMuxContext),
6689  .audio_codec = AV_CODEC_ID_AAC,
6690  .video_codec = AV_CODEC_ID_H264,
6691  .init = mov_init,
6692  .write_header = mov_write_header,
6693  .write_packet = mov_write_packet,
6694  .write_trailer = mov_write_trailer,
6695  .deinit = mov_free,
6696  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
6697  .codec_tag = (const AVCodecTag* const []){
6698  codec_mp4_tags, codec_ism_tags, 0 },
6699  .check_bitstream = mov_check_bitstream,
6700  .priv_class = &ismv_muxer_class,
6701 };
6702 #endif
6703 #if CONFIG_F4V_MUXER
6704 MOV_CLASS(f4v)
6705 AVOutputFormat ff_f4v_muxer = {
6706  .name = "f4v",
6707  .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
6708  .mime_type = "application/f4v",
6709  .extensions = "f4v",
6710  .priv_data_size = sizeof(MOVMuxContext),
6711  .audio_codec = AV_CODEC_ID_AAC,
6712  .video_codec = AV_CODEC_ID_H264,
6713  .init = mov_init,
6714  .write_header = mov_write_header,
6715  .write_packet = mov_write_packet,
6716  .write_trailer = mov_write_trailer,
6717  .deinit = mov_free,
6718  .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
6719  .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
6720  .check_bitstream = mov_check_bitstream,
6721  .priv_class = &f4v_muxer_class,
6722 };
6723 #endif
AVFormatContext::nb_chapters
unsigned int nb_chapters
Number of chapters in AVChapter array.
Definition: avformat.h:1556
AVSphericalMapping::pitch
int32_t pitch
Rotation around the right vector [-90, 90].
Definition: spherical.h:127
FF_PROFILE_DNXHD
#define FF_PROFILE_DNXHD
Definition: avcodec.h:3281
MOV_TRACK_STPS
#define MOV_TRACK_STPS
Definition: movenc.h:93
utf8len
static int utf8len(const uint8_t *b)
Definition: movenc.c:113
AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:486
AV_CODEC_ID_AMR_NB
Definition: avcodec.h:539
FF_COMPLIANCE_EXPERIMENTAL
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2986
mov_write_extradata_tag
static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
This function writes extradata "as is".
Definition: movenc.c:526
AV_CODEC_ID_PCM_S24BE
Definition: avcodec.h:467
AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:82
ff_mov_iso639_to_lang
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:401
AC3HeaderInfo::bitstream_mode
uint8_t bitstream_mode
Definition: ac3.h:184
write_packet
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:671
hevc.h
internal header for HEVC (de)muxer utilities
FF_MOV_FLAG_DELAY_MOOV
#define FF_MOV_FLAG_DELAY_MOOV
Definition: movenc.h:239
avio_wb64
void avio_wb64(AVIOContext *s, uint64_t val)
Definition: aviobuf.c:468
put_bits32
static void av_unused put_bits32(PutBitContext *s, uint32_t value)
Write exactly 32 bits into a bitstream.
Definition: put_bits.h:250
NULL
#define NULL
Definition: coverity.c:32
AV_CODEC_ID_VP9
Definition: avcodec.h:388
val
const char const char void * val
Definition: avisynth_c.h:771
AVCodecParameters::field_order
enum AVFieldOrder field_order
Video only.
Definition: avcodec.h:4233
mov_write_moof_tag_internal
static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov, int tracks, int moof_size)
Definition: movenc.c:4262
ascii_to_wc
static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
Definition: movenc.c:3484
s
const char * s
Definition: avisynth_c.h:768
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
AVCodecParameters::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: avcodec.h:4240
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
AV_CODEC_ID_NONE
Definition: avcodec.h:215
MOVTrack::packet_entry
int packet_entry
Definition: movenc.h:150
FF_MOV_FLAG_FASTSTART
#define FF_MOV_FLAG_FASTSTART
Definition: movenc.h:233
MOVTrack::chunkCount
long chunkCount
Definition: movenc.h:90
get_cluster_duration
static int get_cluster_duration(MOVTrack *track, int cluster_idx)
Definition: movenc.c:914
mov_write_dinf_tag
static int mov_write_dinf_tag(AVIOContext *pb)
Definition: movenc.c:2328
ff_interleaved_peek
int ff_interleaved_peek(AVFormatContext *s, int stream, AVPacket *pkt, int add_offset)
Find the next packet in the interleaving queue for the given stream.
Definition: mux.c:1193
avio.h
Buffered I/O operations.
AV_CODEC_ID_AMR_WB
Definition: avcodec.h:540
MOVMuxContext::use_editlist
int use_editlist
Definition: movenc.h:206
GET_UTF8
#define GET_UTF8(val, GET_BYTE, ERROR)
Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
Definition: common.h:361
AV_CODEC_ID_DNXHD
Definition: avcodec.h:319
mov_flush_fragment
static int mov_flush_fragment(AVFormatContext *s, int force)
Definition: movenc.c:4753
AV_CODEC_ID_PCM_S8
Definition: avcodec.h:458
OPUS_SEEK_PREROLL_MS
#define OPUS_SEEK_PREROLL_MS
Definition: oggparseopus.c:35
MOVTrack::tag
int tag
stsd fourcc
Definition: movenc.h:102
find_fps
static AVRational find_fps(AVFormatContext *s, AVStream *st)
Definition: movenc.c:1260
MOVTrack::language
int language
Definition: movenc.h:100
avio_close_dyn_buf
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition: aviobuf.c:1342
AVOption
AVOption.
Definition: opt.h:246
MOVTrack::dts_shift
int64_t dts_shift
Definition: movenc.h:119
mov_write_tfdt_tag
static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:4210
data
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
ffio_close_null_buf
int ffio_close_null_buf(AVIOContext *s)
Close a null buffer.
Definition: aviobuf.c:1402
mov_write_ac3_tag
static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:269
ff_put_wav_header
int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int flags)
Write WAVEFORMAT header structure.
Definition: riffenc.c:54
mov_write_psp_udta_tag
static void mov_write_psp_udta_tag(AVIOContext *pb, const char *str, const char *lang, int type)
Definition: movenc.c:3608
MOV_TFHD_DEFAULT_DURATION
#define MOV_TFHD_DEFAULT_DURATION
Definition: isom.h:285
MOVIentry::entries
unsigned int entries
Definition: movenc.h:52
MOVMuxContext::mdat_buf
AVIOContext * mdat_buf
Definition: movenc.h:193
mov_write_tmcd_tag
static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2009
MOVStts
Definition: isom.h:54
put_bits
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:206
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:261
param_write_int
static void param_write_int(AVIOContext *pb, const char *name, int value)
Definition: movenc.c:3804
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
FF_MOV_FLAG_FRAGMENT
#define FF_MOV_FLAG_FRAGMENT
Definition: movenc.h:227
AV_CODEC_ID_PNG
Definition: avcodec.h:281
find_compressor
static void find_compressor(char *compressor_name, int len, MOVTrack *track)
Definition: movenc.c:1786
AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
mov_write_subtitle_end_packet
static int mov_write_subtitle_end_packet(AVFormatContext *s, int stream_index, int64_t dts)
Definition: movenc.c:5369
mov_write_enda_tag_be
static int mov_write_enda_tag_be(AVIOContext *pb)
Definition: movenc.c:540
MOVTrack::nb_frag_info
int nb_frag_info
Definition: movenc.h:140
MOVMuxContext::max_fragment_size
int max_fragment_size
Definition: movenc.h:191
MOVMuxCencContext::aes_ctr
struct AVAESCTR * aes_ctr
Definition: movenccenc.h:34
avpriv_set_pts_info
void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: utils.c:4737
skip_bits_long
static void skip_bits_long(GetBitContext *s, int n)
Definition: get_bits.h:204
g
const char * g
Definition: vf_curves.c:112
AV_OPT_TYPE_INT
Definition: opt.h:223
mov_write_dref_tag
static int mov_write_dref_tag(AVIOContext *pb)
Definition: movenc.c:2185
mov_write_gpmd_tag
static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
Definition: movenc.c:2065
AVCPBProperties::max_bitrate
int max_bitrate
Maximum bitrate of the stream, in bits per second.
Definition: avcodec.h:1359
mov_write_string_metadata
static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb, const char *name, const char *tag, int long_style)
Definition: movenc.c:3202
codec_f4v_tags
static const AVCodecTag codec_f4v_tags[]
Definition: movenc.c:6545
AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
Definition: pixfmt.h:490
AVCodecParameters::sample_aspect_ratio
AVRational sample_aspect_ratio
Video only.
Definition: avcodec.h:4228
AV_CODEC_ID_VC1
Definition: avcodec.h:290
AV_PKT_DATA_STEREO3D
This side data should be associated with a video stream and contains Stereoscopic 3D information in f...
Definition: avcodec.h:1479
mov_pcm_be_gt16
static int mov_pcm_be_gt16(enum AVCodecID codec_id)
Definition: movenc.c:633
ff_mov_add_hinted_packet
int ff_mov_add_hinted_packet(AVFormatContext *s, AVPacket *pkt, int track_index, int sample, uint8_t *sample_data, int sample_size)
Definition: movenchint.c:401
AV_SPHERICAL_EQUIRECTANGULAR_TILE
Video represents a portion of a sphere mapped on a flat surface using equirectangular projection...
Definition: spherical.h:72
mov_check_timecode_track
static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_index, const char *tcstr)
Definition: movenc.c:5571
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:4152
mov_get_rawvideo_codec_tag
static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1438
AVStream::sample_aspect_ratio
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:959
AVRational::num
int num
Numerator.
Definition: rational.h:59
AV_PIX_FMT_RGB555LE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined ...
Definition: pixfmt.h:116
AVStream::index
int index
stream index in AVFormatContext
Definition: avformat.h:890
AVPacket::size
int size
Definition: avcodec.h:1680
ff_hevc_annexb2mp4_buf
int ff_hevc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out, int *size, int filter_ps, int *ps_count)
Writes Annex B formatted HEVC NAL units to a data buffer.
Definition: hevc.c:1078
b
const char * b
Definition: vf_curves.c:113
flag
int flag
Definition: cpu.c:34
MOV_TRUN_SAMPLE_CTS
#define MOV_TRUN_SAMPLE_CTS
Definition: isom.h:296
avio_seek
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:244
AVIO_FLAG_READ
#define AVIO_FLAG_READ
read-only
Definition: avio.h:660
av_bswap16
#define av_bswap16
Definition: bswap.h:31
mov_write_dpxe_tag
static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1222
ff_mov_cenc_free
void ff_mov_cenc_free(MOVMuxCencContext *ctx)
Free a CENC context.
Definition: movenccenc.c:412
AV_PKT_DATA_FALLBACK_TRACK
This side data contains an integer value representing the stream index of a "fallback" track...
Definition: avcodec.h:1505
AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:491
AV_CODEC_ID_FLAC
Definition: avcodec.h:568
tc
#define tc
Definition: regdef.h:69
av_double2int
static av_always_inline uint64_t av_double2int(double f)
Reinterpret a double as a 64-bit integer.
Definition: intfloat.h:70
mov_write_trak_tag
static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, AVStream *st)
Definition: movenc.c:2961
AV_DISPOSITION_HEARING_IMPAIRED
#define AV_DISPOSITION_HEARING_IMPAIRED
stream for hearing impaired audiences
Definition: avformat.h:849
MOVTrack::sample_count
long sample_count
Definition: movenc.h:88
AV_SPHERICAL_EQUIRECTANGULAR
Video represents a sphere mapped on a flat surface using equirectangular projection.
Definition: spherical.h:56
MOVTrack::end_reliable
int end_reliable
Definition: movenc.h:118
mov_write_mdta_keys_tag
static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3392
mov_write_pasp_tag
static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1674
AV_CODEC_ID_MPEG4
Definition: avcodec.h:232
avio_skip
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:329
ff_codec_get_tag
unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
Definition: utils.c:3043
MOVMuxContext::encryption_scheme_str
char * encryption_scheme_str
Definition: movenc.h:212
version
int version
Definition: avisynth_c.h:766
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:222
FF_MOV_FLAG_ISML
#define FF_MOV_FLAG_ISML
Definition: movenc.h:232
mov_write_tcmi_tag
static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2345
mov_write_track_metadata
static int mov_write_track_metadata(AVIOContext *pb, AVStream *st, const char *tag, const char *str)
Definition: movenc.c:2920
mov_write_dfla_tag
static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:664
AV_STEREO3D_SIDEBYSIDE
Views are next to each other.
Definition: stereo3d.h:67
pkt
static AVPacket pkt
Definition: demuxing_decoding.c:54
MOV_TFHD_DURATION_IS_EMPTY
#define MOV_TFHD_DURATION_IS_EMPTY
Definition: isom.h:288
mov_write_video_tag
static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:1814
MOVTrack::st
AVStream * st
Definition: movenc.h:103
mov_write_colr_tag
static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1712
mov_write_source_reference_tag
static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
Definition: movenc.c:1990
AV_RB16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:87
language_code
static uint16_t language_code(const char *str)
Definition: movenc.c:3495
FF_PROFILE_AAC_HE_V2
#define FF_PROFILE_AAC_HE_V2
Definition: avcodec.h:3275
AV_CODEC_ID_ADPCM_IMA_WAV
Definition: avcodec.h:493
AVFMT_ALLOW_FLUSH
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:495
AV_CODEC_ID_H264
Definition: avcodec.h:247
AV_RL16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
Definition: bytestream.h:87
avio_open_dyn_buf
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Definition: aviobuf.c:1313
mov_get_dnxhd_codec_tag
static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1429
AV_OPT_TYPE_FLAGS
Definition: opt.h:222
AVFormatContext::strict_std_compliance
int strict_std_compliance
Allow non-standard and experimental extension.
Definition: avformat.h:1635
eac3_info::chan_loc
uint16_t chan_loc
Definition: movenc.c:340
AV_CODEC_ID_ALAC
Definition: avcodec.h:572
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: avcodec.h:4144
mov_write_fiel_tag
static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
Definition: movenc.c:1556
MOVTrack::par
AVCodecParameters * par
Definition: movenc.h:104
color_utils.h
mov_write_tfrf_tag
static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int entry)
Definition: movenc.c:4107
MOVTrack::track_duration
int64_t track_duration
Definition: movenc.h:86
AVCOL_SPC_SMPTE240M
functionally identical to above
Definition: pixfmt.h:492
AVCodecParameters::color_space
enum AVColorSpace color_space
Definition: avcodec.h:4241
MOVMuxContext::encryption_kid_len
int encryption_kid_len
Definition: movenc.h:217
MOV_TFHD_DEFAULT_BASE_IS_MOOF
#define MOV_TFHD_DEFAULT_BASE_IS_MOOF
Definition: isom.h:289
ff_mov_cenc_write_packet
int ff_mov_cenc_write_packet(MOVMuxCencContext *ctx, AVIOContext *pb, const uint8_t *buf_in, int size)
Write a fully encrypted packet.
Definition: movenccenc.c:167
AVCodecParameters::frame_size
int frame_size
Audio only.
Definition: avcodec.h:4273
MOVTrack::last_sample_is_subtitle_end
int last_sample_is_subtitle_end
Definition: movenc.h:87
mov_write_glbl_tag
static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:877
MOVTrack::entries_flushed
int entries_flushed
Definition: movenc.h:138
MOV_TKHD_FLAG_ENABLED
#define MOV_TKHD_FLAG_ENABLED
Definition: isom.h:308
AV_PIX_FMT_RGB565LE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
Definition: pixfmt.h:114
shift_data
static int shift_data(AVFormatContext *s)
Definition: movenc.c:6291
AVIO_DATA_MARKER_TRAILER
Trailer data, which doesn't contain actual content, but only for finalizing the output file...
Definition: avio.h:140
AVFormatContext
Format I/O context.
Definition: avformat.h:1349
MOVTrack::frag_start
int64_t frag_start
Definition: movenc.h:136
mov_write_stsc_tag
static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:203
mov_write_trkn_tag
static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s, int disc)
Definition: movenc.c:3283
mov_write_packet
static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: movenc.c:5390
AV_CODEC_ID_DVD_SUBTITLE
Definition: avcodec.h:647
AV_CODEC_ID_WMAPRO
Definition: avcodec.h:596
mov_write_st3d_tag
static int mov_write_st3d_tag(AVIOContext *pb, AVStereo3D *stereo_3d)
Definition: movenc.c:1586
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
mov_add_tfra_entries
static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks, int size)
Definition: movenc.c:4156
mov_write_single_packet
static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
Definition: movenc.c:5286
dict.h
Public dictionary API.
avpriv_get_gamma_from_trc
double avpriv_get_gamma_from_trc(enum AVColorTransferCharacteristic trc)
Determine a suitable 'gamma' value to match the supplied AVColorTransferCharacteristic.
Definition: color_utils.c:28
AV_OPT_TYPE_CONST
Definition: opt.h:232
av_timecode_init_from_string
int av_timecode_init_from_string(AVTimecode *tc, AVRational rate, const char *str, void *log_ctx)
Parse timecode representation (hh:mm:ss[:;.
Definition: timecode.c:194
cb
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:106
MOVMuxContext::first_trun
int first_trun
Definition: movenc.h:194
mov_write_uuidusmt_tag
static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
Definition: movenc.c:3621
avpriv_request_sample
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
MOVTrack::default_duration
int64_t default_duration
Definition: movenc.h:128
READ_BLOCK
#define READ_BLOCK
MOVTrack::flags
uint32_t flags
Definition: movenc.h:95
FF_MOV_FLAG_EMPTY_MOOV
#define FF_MOV_FLAG_EMPTY_MOOV
Definition: movenc.h:228
AVMEDIA_TYPE_NB
Definition: avutil.h:206
FF_MOV_FLAG_WRITE_COLR
#define FF_MOV_FLAG_WRITE_COLR
Definition: movenc.h:241
av_packet_free
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:62
avio_wl32
void avio_wl32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:374
uint8_t
uint8_t
Definition: audio_convert.c:194
AV_ROUND_UP
Round toward +infinity.
Definition: mathematics.h:83
nb_streams
static int nb_streams
Definition: ffprobe.c:276
mov_write_uuid_tag_psp
static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
Definition: movenc.c:2881
mov_write_minf_tag
static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:2531
MOVTrack::frag_info_capacity
unsigned frag_info_capacity
Definition: movenc.h:142
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
ff_hevc_annexb2mp4
int ff_hevc_annexb2mp4(AVIOContext *pb, const uint8_t *buf_in, int size, int filter_ps, int *ps_count)
Writes Annex B formatted HEVC NAL units to the provided AVIOContext.
Definition: hevc.c:1030
AVMEDIA_TYPE_DATA
Opaque data information usually continuous.
Definition: avutil.h:203
MOVMuxContext::missing_duration_warned
int missing_duration_warned
Definition: movenc.h:210
mov_preroll_write_stbl_atoms
static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2200
AVCodecParameters::width
int width
Video only.
Definition: avcodec.h:4218
MOVMuxContext::mdat_size
uint64_t mdat_size
Definition: movenc.h:177
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
MOVIentry::samples_in_chunk
unsigned int samples_in_chunk
Definition: movenc.h:50
MOV_CLASS
#define MOV_CLASS(flavor)
Definition: movenc.c:103
AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:73
mov_write_ctts_tag
static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2099
opt.h
AVOptions.
AC3HeaderInfo::lfe_on
uint8_t lfe_on
Definition: ac3.h:186
avcodec_parameters_alloc
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2258
get_samples_per_packet
static int get_samples_per_packet(MOVTrack *track)
Definition: movenc.c:934
AVStereo3D
Stereo 3D type: this structure describes how two videos are packed within a single video surface...
Definition: stereo3d.h:157
mov_get_mpeg2_xdcam_codec_tag
static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1287
ff_codec_movvideo_tags
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom.c:75
MOVMuxContext::frag_interleave
int frag_interleave
Definition: movenc.h:209
AV_CODEC_ID_DIRAC
Definition: avcodec.h:336
mov_pcm_le_gt16
static int mov_pcm_le_gt16(enum AVCodecID codec_id)
Definition: movenc.c:625
AV_TIMECODE_FLAG_DROPFRAME
timecode is drop frame
Definition: timecode.h:36
end
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
mov_get_codec_tag
static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1464
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1697
mov_write_isml_manifest
static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3823
AV_PKT_DATA_DISPLAYMATRIX
This side data contains a 3x3 transformation matrix describing an affine transformation that needs to...
Definition: avcodec.h:1473
AVStream::id
int id
Format-specific stream ID.
Definition: avformat.h:896
ff_format_io_close
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: utils.c:5449
MOVMuxContext::encryption_key_len
int encryption_key_len
Definition: movenc.h:215
AV_CODEC_ID_AAC
Definition: avcodec.h:558
options
static const AVOption options[]
Definition: movenc.c:59
MODE_PSP
#define MODE_PSP
Definition: movenc.h:39
mov_write_ms_tag
static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:641
avio_write_marker
void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type)
Mark the written bytestream as a specific type.
Definition: aviobuf.c:498
av_stream_get_side_data
uint8_t * av_stream_get_side_data(const AVStream *stream, enum AVPacketSideDataType type, int *size)
Get side information from stream.
Definition: utils.c:5254
mov_write_tapt_tag
static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2753
mov_create_chapter_track
static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
Definition: movenc.c:5473
AV_RB32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
AVFormatContext::streams
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1417
duration
int64_t duration
Definition: movenc.c:63
mov_write_vmhd_tag
static int mov_write_vmhd_tag(AVIOContext *pb)
Definition: movenc.c:2429
MODE_MP4
#define MODE_MP4
Definition: movenc.h:36
AV_PIX_FMT_RGB565BE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
Definition: pixfmt.h:113
MOVTrack::pal_done
int pal_done
Definition: movenc.h:159
mov_write_amr_tag
static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:255
AVIO_DATA_MARKER_BOUNDARY_POINT
A point in the output bytestream where a demuxer can start parsing (for non self synchronizing bytest...
Definition: avio.h:128
AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:95
mov_write_sidx_tags
static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov, int tracks, int ref_size)
Definition: movenc.c:4346
mov_write_moov_tag
static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3728
strtod
double strtod(const char *, char **)
MOVMuxContext::encryption_key
uint8_t * encryption_key
Definition: movenc.h:214
ff_mov_cenc_init
int ff_mov_cenc_init(MOVMuxCencContext *ctx, uint8_t *encryption_key, int use_subsamples, int bitexact)
Initialize a CENC context.
Definition: movenccenc.c:388
VC1_CODE_SLICE
Definition: vc1_common.h:36
av_stereo3d_type_name
const char * av_stereo3d_type_name(unsigned int type)
Provide a human-readable name of a given stereo3d type.
Definition: stereo3d.c:57
avio_internal.h
height
#define height
AV_CODEC_ID_ADPCM_IMA_QT
Definition: avcodec.h:492
ff_avc_write_annexb_extradata
int ff_avc_write_annexb_extradata(const uint8_t *in, uint8_t **buf, int *size)
Definition: avc.c:164
av_dict_get
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
MOVMuxContext::chapter_track
int chapter_track
qt chapter track number
Definition: movenc.h:175
AV_OPT_TYPE_STRING
Definition: opt.h:227
AVFormatContext::flags
int flags
Flags modifying the (de)muxer behaviour.
Definition: avformat.h:1460
MOVMuxContext::need_rewrite_extradata
int need_rewrite_extradata
Definition: movenc.h:219
AVPacket::data
uint8_t * data
Definition: avcodec.h:1679
FF_MOV_FLAG_OMIT_TFHD_OFFSET
#define FF_MOV_FLAG_OMIT_TFHD_OFFSET
Definition: movenc.h:234
av_q2d
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
ff_isom_write_vpcc
int ff_isom_write_vpcc(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par)
Writes VP codec configuration to the provided AVIOContext.
Definition: vpcc.c:70
AVTimecode::start
int start
timecode frame start (first base frame number)
Definition: timecode.h:42
flags
static int flags
Definition: log.c:57
MOVFragmentInfo::time
int64_t time
Definition: movenc.h:75
mov_free
static void mov_free(AVFormatContext *s)
Definition: movenc.c:5670
MOV_TRUN_SAMPLE_SIZE
#define MOV_TRUN_SAMPLE_SIZE
Definition: isom.h:294
tag
uint32_t tag
Definition: movenc.c:1409
mov_write_itunes_hdlr_tag
static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3127
MOVMuxContext::fragments
int fragments
Definition: movenc.h:188
mov_write_subtitle_tag
static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1569
MOVMuxContext::iods_audio_profile
int iods_audio_profile
Definition: movenc.h:185
get_bits.h
bitstream reader API header.
MOV_TIMESCALE
#define MOV_TIMESCALE
Definition: movenc.h:32
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
MOVMuxContext::max_fragment_duration
int max_fragment_duration
Definition: movenc.h:189
av_match_ext
int av_match_ext(const char *filename, const char *extensions)
Return a positive value if the given filename has one of the given extensions, 0 otherwise.
Definition: format.c:85
mov_write_moof_tag
static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks, int64_t mdat_size)
Definition: movenc.c:4381
AC3HeaderInfo::bitstream_id
uint8_t bitstream_id
Definition: ac3.h:183
AV_STEREO3D_2D
Video is not stereoscopic (and metadata has to be there).
Definition: stereo3d.h:55
AVCPBProperties::buffer_size
int buffer_size
The size of the buffer to which the ratecontrol is applied, in bits.
Definition: avcodec.h:1375
size
ptrdiff_t size
Definition: opengl_enc.c:101
MOVMuxContext::mdat_pos
int64_t mdat_pos
Definition: movenc.h:176
avio_tell
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:556
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
ff_mov_close_hinting
void ff_mov_close_hinting(MOVTrack *track)
Definition: movenchint.c:459
AV_CODEC_ID_MJPEG
Definition: avcodec.h:227
mov_write_uuid_tag_ipod
static int mov_write_uuid_tag_ipod(AVIOContext *pb)
Write uuid atom.
Definition: movenc.c:1540
MOVIentry::size
unsigned int size
Definition: movenc.h:49
avio_write
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:216
ffio_wfourcc
static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
Definition: avio_internal.h:58
AVFMT_FLAG_BITEXACT
#define AVFMT_FLAG_BITEXACT
When muxing, try to avoid writing any random/volatile data to the output.
Definition: avformat.h:1477
FF_MOV_FLAG_DASH
#define FF_MOV_FLAG_DASH
Definition: movenc.h:237
AV_WB16
#define AV_WB16(p, v)
Definition: intreadwrite.h:410
ac3_parser.h
fiel_data
static const uint16_t fiel_data[]
Definition: movenc.c:1552
AVCodecParameters::channel_layout
uint64_t channel_layout
Audio only.
Definition: avcodec.h:4254
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
MOV_TFHD_DEFAULT_SIZE
#define MOV_TFHD_DEFAULT_SIZE
Definition: isom.h:286
mov_write_nmhd_tag
static int mov_write_nmhd_tag(AVIOContext *pb)
Definition: movenc.c:2337
AV_OPT_FLAG_ENCODING_PARAM
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:276
AV_CODEC_ID_QDM2
Definition: avcodec.h:575
MOVMuxContext::ism_lookahead
int ism_lookahead
Definition: movenc.h:192
AVFormatContext::oformat
struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1368
av_packet_ref
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:627
ROUNDED_DIV
#define ROUNDED_DIV(a, b)
Definition: common.h:56
AV_CODEC_ID_VP6A
Definition: avcodec.h:326
AVCodecParameters::bit_rate
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:4181
FF_COMPLIANCE_UNOFFICIAL
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
Definition: avcodec.h:2985
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1711
AV_CODEC_ID_DVVIDEO
Definition: avcodec.h:244
MODE_3G2
#define MODE_3G2
Definition: movenc.h:41
av_copy_packet_side_data
attribute_deprecated int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src)
Copy packet side data.
Definition: avpacket.c:226
mov_find_codec_tag
static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1511
codec_ism_tags
const AVCodecTag codec_ism_tags[]
Definition: movenc.c:6529
compute_sidx_size
static int compute_sidx_size(AVFormatContext *s)
Definition: movenc.c:6276
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
MOVTrack::tref_tag
uint32_t tref_tag
Definition: movenc.h:113
eac3_info::substream
struct eac3_info::@218 substream[1]
AV_CODEC_ID_MPEG1VIDEO
Definition: avcodec.h:218
eac3_info::lfeon
uint8_t lfeon
Definition: movenc.c:335
MOVIentry::flags
uint32_t flags
Definition: movenc.h:56
mov_write_eac3_tag
static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:469
MOV_TIMECODE_FLAG_DROPFRAME
#define MOV_TIMECODE_FLAG_DROPFRAME
Definition: movenc.h:96
AV_CODEC_ID_SVQ3
Definition: avcodec.h:243
mov_parse_vc1_frame
static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
Definition: movenc.c:4667
mov_write_udta_sdp
static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2899
ff_parse_creation_time_metadata
int ff_parse_creation_time_metadata(AVFormatContext *s, int64_t *timestamp, int return_seconds)
Parse creation_time in AVFormatContext metadata if exists and warn if the parsing fails...
Definition: utils.c:5456
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:214
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
AVFormatContext::metadata
AVDictionary * metadata
Metadata that applies to the whole file.
Definition: avformat.h:1567
av_get_bits_per_sample
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
Definition: utils.c:1662
AVStereo3D::flags
int flags
Additional information about the frame packing.
Definition: stereo3d.h:166
mov_write_mdta_ilst_tag
static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3420
mov_write_meta_tag
static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3442
MOVFragmentInfo::tfrf_offset
int64_t tfrf_offset
Definition: movenc.h:77
MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO
#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO
Definition: isom.h:305
mov_write_mdat_tag
static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
Definition: movenc.c:4459
mov_write_stsz_tag
static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:167
MOVFragmentInfo::duration
int64_t duration
Definition: movenc.h:76
AC3HeaderInfo::frame_type
uint8_t frame_type
Definition: ac3.h:187
put_descr
static void put_descr(AVIOContext *pb, int tag, unsigned int size)
Definition: movenc.c:548
flac.h
FLAC (Free Lossless Audio Codec) decoder/demuxer common functions.
mov_write_ilst_tag
static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3338
mov_write_avid_tag
static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1139
AVERROR
#define AVERROR(e)
Definition: error.h:43
eac3_info::acmod
uint8_t acmod
Definition: movenc.c:333
mov_write_int8_metadata
static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb, const char *name, const char *tag, int len)
Definition: movenc.c:3310
av_packet_get_side_data
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
Definition: avpacket.c:350
MOVMuxContext::video_track_timescale
int video_track_timescale
Definition: movenc.h:196
mov_write_dvc1_structs
static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
Definition: movenc.c:778
AV_OPT_TYPE_FLOAT
Definition: opt.h:226
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
MODE_3GP
#define MODE_3GP
Definition: movenc.h:38
AVCodecParameters::color_primaries
enum AVColorPrimaries color_primaries
Definition: avcodec.h:4239
AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:96
AC3HeaderInfo::sr_code
uint8_t sr_code
Definition: ac3.h:182
r
const char * r
Definition: vf_curves.c:111
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
ff_isom_write_hvcc
int ff_isom_write_hvcc(AVIOContext *pb, const uint8_t *data, int size, int ps_array_completeness)
Writes HEVC extradata (parameter sets, declarative SEI NAL units) to the provided AVIOContext...
Definition: hevc.c:1094
AV_CODEC_ID_DTS
Definition: avcodec.h:560
ff_mov_cenc_avc_parse_nal_units
int ff_mov_cenc_avc_parse_nal_units(MOVMuxCencContext *ctx, AVIOContext *pb, const uint8_t *buf_in, int size)
Parse AVC NAL units from annex B format, the nal size and type are written in the clear while the bod...
Definition: movenccenc.c:192
video_st
AVStream * video_st
Definition: movenc.c:59
AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:557
av_fourcc2str
#define av_fourcc2str(fourcc)
Definition: avutil.h:348
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:4148
AVFormatContext::chapters
AVChapter ** chapters
Definition: avformat.h:1557
AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
width
uint16_t width
Definition: gdv.c:47
AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:433
get_metadata_lang
static AVDictionaryEntry * get_metadata_lang(AVFormatContext *s, const char *tag, int *lang)
Definition: movenc.c:3177
mov_write_trun_tag
static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int moof_size, int first, int end)
Definition: movenc.c:4030
FF_MOV_FLAG_WRITE_GAMA
#define FF_MOV_FLAG_WRITE_GAMA
Definition: movenc.h:242
mov_create_dvd_sub_decoder_specific_info
static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track, AVStream *st)
Definition: movenc.c:5714
AC3HeaderInfo
Coded AC-3 header values up to the lfeon element, plus derived values.
Definition: ac3.h:176
round
static av_always_inline av_const double round(double x)
Definition: libm.h:444
MOVTrack::height
int height
active picture (w/o VBI) height for D-10/IMX
Definition: movenc.h:112
mov_write_track_udta_tag
static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov, AVStream *st)
Definition: movenc.c:2934
FF_MOV_FLAG_SEPARATE_MOOF
#define FF_MOV_FLAG_SEPARATE_MOOF
Definition: movenc.h:230
MOVTrack::is_unaligned_qt_rgb
int is_unaligned_qt_rgb
Definition: movenc.h:161
AES_CTR_KEY_SIZE
#define AES_CTR_KEY_SIZE
Definition: aes_ctr.h:30
mov_setup_track_ids
static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
Assign track ids.
Definition: movenc.c:3694
eac3_info::bsmod
uint8_t bsmod
Definition: movenc.c:331
offset
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
count
GLsizei count
Definition: opengl_enc.c:109
AVStream::avg_frame_rate
AVRational avg_frame_rate
Average framerate.
Definition: avformat.h:970
ff_codec_wav_tags
const AVCodecTag ff_codec_wav_tags[]
Definition: riff.c:469
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
ff_avc_parse_nal_units_buf
int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size)
Definition: avc.c:92
av_mallocz_array
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:229
AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:93
MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES
#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES
Definition: isom.h:306
MOVMuxContext::encryption_scheme
MOVEncryptionScheme encryption_scheme
Definition: movenc.h:213
av_strlcpy
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
Definition: avstring.c:83
fail
#define fail()
Definition: checkasm.h:109
MOVTrack::mode
int mode
Definition: movenc.h:82
ff_mp4_obj_type
const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:34
ff_dnxhd_parse_header_prefix
static av_always_inline uint64_t ff_dnxhd_parse_header_prefix(const uint8_t *buf)
Definition: dnxhddata.h:87
ff_codec_movsubtitle_tags
const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:368
AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:94
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1685
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:4170
AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
av_reallocp_array
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:191
distance
static float distance(float x, float y, int band)
Definition: nellymoserenc.c:234
MOVTrack::vos_len
int vos_len
Definition: movenc.h:107
MOVMuxContext::iods_skip
int iods_skip
Definition: movenc.h:183
mov_flush_fragment_interleaving
static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:4727
AVFormatContext::nb_streams
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1405
AVSphericalMapping::bound_bottom
uint32_t bound_bottom
Distance from the bottom edge.
Definition: spherical.h:170
ff_avc_parse_nal_units
int ff_avc_parse_nal_units(AVIOContext *pb, const uint8_t *buf_in, int size)
Definition: avc.c:70
mov_write_identification
static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
Definition: movenc.c:4619
mov_write_gama_tag
static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
Definition: movenc.c:1687
LIBAVFORMAT_IDENT
#define LIBAVFORMAT_IDENT
Definition: version.h:46
AVCodecParameters::block_align
int block_align
Audio only.
Definition: avcodec.h:4269
FF_MOV_FLAG_FRAG_DISCONT
#define FF_MOV_FLAG_FRAG_DISCONT
Definition: movenc.h:238
mov_write_mdia_tag
static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:2605
MOVIentry::pos
uint64_t pos
Definition: movenc.h:47
AV_CODEC_ID_AVUI
Definition: avcodec.h:418
MOVTrack::first_frag_written
int first_frag_written
Definition: movenc.h:148
MOVTrack::cenc
MOVMuxCencContext cenc
Definition: movenc.h:156
MOVIentry::dts
int64_t dts
Definition: movenc.h:48
MOV_FRAG_INFO_ALLOC_INCREMENT
#define MOV_FRAG_INFO_ALLOC_INCREMENT
Definition: movenc.h:30
MOV_TRACK_ENABLED
#define MOV_TRACK_ENABLED
Definition: movenc.h:94
mov_write_stts_tag
static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2140
AVIOContext::seekable
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
Definition: avio.h:261
AV_SPHERICAL_CUBEMAP
Video frame is split into 6 faces of a cube, and arranged on a 3x2 layout.
Definition: spherical.h:65
avio_flush
int void avio_flush(AVIOContext *s)
Force flushing of buffered data.
Definition: aviobuf.c:236
ff_alloc_extradata
int ff_alloc_extradata(AVCodecParameters *par, int size)
Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0...
Definition: utils.c:3216
MOVMuxContext::write_tmcd
int write_tmcd
Definition: movenc.h:223
MOVMuxContext::per_stream_grouping
int per_stream_grouping
Definition: movenc.h:203
AV_CODEC_ID_MOV_TEXT
Definition: avcodec.h:652
MOVTrack::data_offset
int64_t data_offset
Definition: movenc.h:135
AVFormatContext::filename
char filename[1024]
input or output filename
Definition: avformat.h:1425
mov_write_tfhd_tag
static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int64_t moof_offset)
Definition: movenc.c:3970
av_rescale
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
ffio_fill
void ffio_fill(AVIOContext *s, int b, int count)
Definition: aviobuf.c:202
eac3_info
Definition: movenc.c:313
AV_TIME_BASE
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
MOVMuxContext::nb_meta_tmcd
int nb_meta_tmcd
number of new created tmcd track based on metadata (aka not data copy)
Definition: movenc.h:174
raw.h
Raw Video Codec.
ff_codec_bmp_tags
const AVCodecTag ff_codec_bmp_tags[]
Definition: riff.c:32
mov_write_mvex_tag
static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
Definition: movenc.c:3056
interlaced
uint8_t interlaced
Definition: mxfenc.c:1898
MOVTrack::audio_vbr
int audio_vbr
Definition: movenc.h:111
mov_check_bitstream
static int mov_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
Definition: movenc.c:6472
MOVTrack::vc1_info
struct MOVTrack::@219 vc1_info
mov_write_chpl_tag
static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
Definition: movenc.c:3524
AC3HeaderInfo::bit_rate
uint32_t bit_rate
Definition: ac3.h:201
MOV_TKHD_FLAG_IN_MOVIE
#define MOV_TKHD_FLAG_IN_MOVIE
Definition: isom.h:309
MOV_PARTIAL_SYNC_SAMPLE
#define MOV_PARTIAL_SYNC_SAMPLE
Definition: movenc.h:55
ff_mov_init_hinting
int ff_mov_init_hinting(AVFormatContext *s, int index, int src_index)
Definition: movenchint.c:29
value
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
eac3_info::pkt
AVPacket pkt
Definition: movenc.c:314
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:3267
write_trailer
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
mov_write_avcc_tag
static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1103
AVFMT_GLOBALHEADER
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:485
is_clcp_track
static int is_clcp_track(MOVTrack *track)
Definition: movenc.c:2438
AVCOL_PRI_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:438
avio_wb24
void avio_wb24(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:492
AV_PKT_DATA_SPHERICAL
This side data should be associated with a video stream and corresponds to the AVSphericalMapping str...
Definition: avcodec.h:1593
AVSphericalMapping::bound_right
uint32_t bound_right
Distance from the right edge.
Definition: spherical.h:169
AVOutputFormat::name
const char * name
Definition: avformat.h:524
ff_get_packet_palette
int ff_get_packet_palette(AVFormatContext *s, AVPacket *pkt, int ret, uint32_t *palette)
Retrieves the palette from a packet, either from side data, or appended to the video data in the pack...
Definition: utils.c:5482
riff.h
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
int32_t
int32_t
Definition: audio_convert.c:194
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_OPT_TYPE_BOOL
Definition: opt.h:240
mov_get_dv_codec_tag
static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1235
ff_mov_cenc_avc_write_nal_units
int ff_mov_cenc_avc_write_nal_units(AVFormatContext *s, MOVMuxCencContext *ctx, int nal_length_size, AVIOContext *pb, const uint8_t *buf_in, int size)
Write AVC NAL units that are in MP4 format, the nal size and type are written in the clear while the ...
Definition: movenccenc.c:232
MOVTrack::sample_size
long sample_size
Definition: movenc.h:89
AV_CODEC_ID_PCM_F64BE
Definition: avcodec.h:476
mov_write_string_tag
static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style)
Definition: movenc.c:3163
AV_CODEC_ID_H263
Definition: avcodec.h:224
FLAC_STREAMINFO_SIZE
#define FLAC_STREAMINFO_SIZE
Definition: flac.h:34
MOVTrack::frag_discont
int frag_discont
Definition: movenc.h:137
mov_write_smhd_tag
static int mov_write_smhd_tag(AVIOContext *pb)
Definition: movenc.c:2419
mov_auto_flush_fragment
static int mov_auto_flush_fragment(AVFormatContext *s, int force)
Definition: movenc.c:4963
AVFormatContext::avoid_negative_ts
int avoid_negative_ts
Avoid negative timestamps during muxing.
Definition: avformat.h:1658
AV_CODEC_ID_R10K
Definition: avcodec.h:365
MOVMuxContext::reserved_moov_size
int reserved_moov_size
0 for disabled, -1 for automatic, size otherwise
Definition: movenc.h:198
mov_write_stco_tag
static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:143
param_write_string
static void param_write_string(AVIOContext *pb, const char *name, const char *value)
Definition: movenc.c:3809
AVSphericalMapping::yaw
int32_t yaw
Rotation around the up vector [-180, 180].
Definition: spherical.h:126
MOV_TRUN_SAMPLE_DURATION
#define MOV_TRUN_SAMPLE_DURATION
Definition: isom.h:293
n
int n
Definition: avisynth_c.h:684
AVStream::metadata
AVDictionary * metadata
Definition: avformat.h:961
MOVMuxContext::use_stream_ids_as_track_ids
int use_stream_ids_as_track_ids
Definition: movenc.h:221
AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
AV_CODEC_ID_OPUS
Definition: avcodec.h:619
codec_id
enum AVCodecID codec_id
Definition: vaapi_decode.c:235
AVCodecParameters::color_range
enum AVColorRange color_range
Video only.
Definition: avcodec.h:4238
mov_write_hvcc_tag
static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1125
AVMEDIA_TYPE_UNKNOWN
Usually treated as AVMEDIA_TYPE_DATA.
Definition: avutil.h:200
mov_write_edts_tag
static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:2785
mov_init
static int mov_init(AVFormatContext *s)
Definition: movenc.c:5763
pix_fmt
enum AVPixelFormat pix_fmt
Definition: movenc.c:1408
mov_write_trex_tag
static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:3043
av_rescale_rnd
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
Rescale a 64-bit integer with specified rounding.
Definition: mathematics.c:58
mov_write_dops_tag
static int mov_write_dops_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:684
AV_CODEC_ID_ADPCM_G726
Definition: avcodec.h:503
AV_CODEC_ID_PCM_S16BE
Definition: avcodec.h:455
mov_get_h264_codec_tag
static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
Definition: movenc.c:1349
AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:219
AV_CODEC_ID_QCELP
Definition: avcodec.h:580
mov_write_raw_metadata_tag
static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb, const char *name, const char *key)
Definition: movenc.c:3464
AVERROR_EXPERIMENTAL
#define AVERROR_EXPERIMENTAL
Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it...
Definition: error.h:72
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen_template.c:36
MOV_TRACK_CTTS
#define MOV_TRACK_CTTS
Definition: movenc.h:92
AV_OPT_TYPE_BINARY
offset must point to a pointer immediately followed by an int for the length
Definition: opt.h:229
avcodec_get_name
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1294
AVCOL_RANGE_JPEG
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:510
mov_write_mfhd_tag
static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
Definition: movenc.c:3955
MOVMuxContext::iods_video_profile
int iods_video_profile
Definition: movenc.h:184
mov_chan.h
AV_DISPOSITION_VISUAL_IMPAIRED
#define AV_DISPOSITION_VISUAL_IMPAIRED
stream for visual impaired audiences
Definition: avformat.h:850
AVSphericalMapping::padding
uint32_t padding
Number of pixels to pad from the edge of each cube face.
Definition: spherical.h:182
avio_put_str
int avio_put_str(AVIOContext *s, const char *str)
Write a NULL-terminated string.
Definition: aviobuf.c:390
AVStream
Stream structure.
Definition: avformat.h:889
get_sidx_size
static int get_sidx_size(AVFormatContext *s)
Definition: movenc.c:6233
AV_CODEC_ID_PCM_U8
Definition: avcodec.h:459
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
AVChapter::end
int64_t end
chapter start/end time in time_base units
Definition: avformat.h:1309
AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:457
AVCPBProperties
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1354
AVIO_SEEKABLE_NORMAL
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
Definition: avio.h:40
AV_RB8
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_WB16 unsigned int_TMPL AV_RB8
Definition: bytestream.h:87
AV_PKT_DATA_NEW_EXTRADATA
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Definition: avcodec.h:1420
AV_DISPOSITION_DEFAULT
#define AV_DISPOSITION_DEFAULT
Definition: avformat.h:836
AVStereo3D::type
enum AVStereo3DType type
How views are packed within the video.
Definition: stereo3d.h:161
avpriv_find_pix_fmt
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
Definition: utils.c:561
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
mov_write_esds_tag
static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:568
AVCOL_TRC_SMPTE170M
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:462
MOVTrack::end_pts
int64_t end_pts
Definition: movenc.h:117
MOV_INDEX_CLUSTER_SIZE
#define MOV_INDEX_CLUSTER_SIZE
Definition: movenc.h:31
MOVMuxContext::track_ids_ok
int track_ids_ok
Definition: movenc.h:222
mov_write_d263_tag
static int mov_write_d263_tag(AVIOContext *pb)
Definition: movenc.c:1091
FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS
#define FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS
Definition: movenc.h:245
AV_STEREO3D_TOPBOTTOM
Views are on top of each other.
Definition: stereo3d.h:79
AV_RB24
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_RB24
Definition: bytestream.h:87
vc1_unescape_buffer
static av_always_inline int vc1_unescape_buffer(const uint8_t *src, int size, uint8_t *dst)
Definition: vc1_common.h:70
AVCOL_PRI_SMPTE240M
functionally identical to above
Definition: pixfmt.h:440
ff_codec_movaudio_tags
const AVCodecTag ff_codec_movaudio_tags[]
Definition: isom.c:311
MOVStts::duration
int duration
Definition: isom.h:56
AV_TIME_BASE_Q
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
MOVIentry::cts
int cts
Definition: movenc.h:53
timecode.h
Timecode helpers header.
AVFormatContext::pb
AVIOContext * pb
I/O context.
Definition: avformat.h:1391
mov_prune_frag_info
static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
Definition: movenc.c:4196
FF_RTP_FLAG_OPTS
#define FF_RTP_FLAG_OPTS(ctx, fieldname)
Definition: rtpenc.h:74
avio_w8
void avio_w8(AVIOContext *s, int b)
Definition: aviobuf.c:194
rgb_to_yuv
static uint32_t rgb_to_yuv(uint32_t rgb)
Definition: movenc.c:5698
MOV_TRUN_FIRST_SAMPLE_FLAGS
#define MOV_TRUN_FIRST_SAMPLE_FLAGS
Definition: isom.h:292
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:618
AV_CODEC_ID_AC3
Definition: avcodec.h:559
FF_MOV_FLAG_FRAG_CUSTOM
#define FF_MOV_FLAG_FRAG_CUSTOM
Definition: movenc.h:231
MOVTrack::timecode_flags
uint32_t timecode_flags
Definition: movenc.h:99
MOVTrack::hint_track
int hint_track
the track that hints this track, -1 if no hint track is set
Definition: movenc.h:121
mov_write_hmhd_tag
static int mov_write_hmhd_tag(AVIOContext *pb)
Definition: movenc.c:2516
MOVTrack::slices
int slices
Definition: movenc.h:151
mov_parse_mpeg2_frame
static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
Definition: movenc.c:4646
AV_PIX_FMT_YUYV422
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:63
FF_MOV_FLAG_GLOBAL_SIDX
#define FF_MOV_FLAG_GLOBAL_SIDX
Definition: movenc.h:240
mov_write_dvc1_tag
static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:861
build_chunks
static void build_chunks(MOVTrack *trk)
Definition: movenc.c:3659
AV_CODEC_ID_EAC3
Definition: avcodec.h:599
AV_CODEC_ID_PCM_F32BE
Definition: avcodec.h:474
buf
void * buf
Definition: avisynth_c.h:690
type
GLint GLenum type
Definition: opengl_enc.c:105
libm.h
Replacements for frequently missing libm functions.
mov_write_stbl_tag
static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:2295
MOVTrack::default_size
uint32_t default_size
Definition: movenc.h:130
get_bits1
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:313
ff_mov_cenc_write_sinf_tag
int ff_mov_cenc_write_sinf_tag(MOVTrack *track, AVIOContext *pb, uint8_t *kid)
Write the sinf atom, contained inside stsd.
Definition: movenccenc.c:364
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:379
MOVStts::count
unsigned int count
Definition: isom.h:55
MOVMuxContext::gamma
float gamma
Definition: movenc.h:207
FF_MOV_FLAG_RTP_HINT
#define FF_MOV_FLAG_RTP_HINT
Definition: movenc.h:226
skip_bits
static void skip_bits(GetBitContext *s, int n)
Definition: get_bits.h:306
AV_WB32
#define AV_WB32(p, v)
Definition: intreadwrite.h:424
FF_COMPLIANCE_NORMAL
#define FF_COMPLIANCE_NORMAL
Definition: avcodec.h:2984
MOVMuxContext::fc
AVFormatContext * fc
Definition: movenc.h:204
AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:98
index
int index
Definition: gxfenc.c:89
mov_write_wfex_tag
static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:653
MOVIentry::chunkNum
unsigned int chunkNum
Chunk number if the current entry is a chunk start otherwise 0.
Definition: movenc.h:51
AVSphericalMapping::roll
int32_t roll
Rotation around the forward vector [-180, 180].
Definition: spherical.h:128
co64_required
static int co64_required(const MOVTrack *track)
Definition: movenc.c:135
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
MOVTrack::time
uint64_t time
Definition: movenc.h:85
MOVTrack::first_packet_seq
int first_packet_seq
Definition: movenc.h:145
FF_MOV_FLAG_SKIP_TRAILER
#define FF_MOV_FLAG_SKIP_TRAILER
Definition: movenc.h:244
param_write_hex
static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
Definition: movenc.c:3814
init_get_bits
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:425
MOVMuxContext::time
int64_t time
Definition: movenc.h:172
AC3HeaderInfo::frame_size
uint16_t frame_size
Definition: ac3.h:203
MOVTrack::has_keyframes
int has_keyframes
Definition: movenc.h:91
vc1_common.h
AV_CODEC_ID_TSCC2
Definition: avcodec.h:384
ffio_open_null_buf
int ffio_open_null_buf(AVIOContext **s)
Open a write-only fake memory stream.
Definition: aviobuf.c:1392
MOVTrack::entry
int entry
Definition: movenc.h:83
mov_write_chan_tag
static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:707
mov_write_loci_tag
static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
Definition: movenc.c:3232
av_strlcatf
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
AV_CODEC_ID_PCM_S24LE
Definition: avcodec.h:466
MOV_TFHD_DEFAULT_FLAGS
#define MOV_TFHD_DEFAULT_FLAGS
Definition: isom.h:287
AVFMT_AVOID_NEG_TS_AUTO
#define AVFMT_AVOID_NEG_TS_AUTO
Enabled when required by target format.
Definition: avformat.h:1659
MOVTrack::frag_info
MOVFragmentInfo * frag_info
Definition: movenc.h:141
snprintf
#define snprintf
Definition: snprintf.h:34
MOVMuxContext::major_brand
char * major_brand
Definition: movenc.h:201
MOVTrack::start_cts
int64_t start_cts
Definition: movenc.h:116
AV_CODEC_ID_MP2
Definition: avcodec.h:556
AVFMT_FLAG_AUTO_BSF
#define AVFMT_FLAG_AUTO_BSF
Wait for packet data before writing a header, and add bitstream filters as requested by the muxer...
Definition: avformat.h:1486
AV_CODEC_ID_EVRC
Definition: avcodec.h:630
AVSphericalMapping
This structure describes how to handle spherical videos, outlining information about projection...
Definition: spherical.h:82
MOV_TRUN_SAMPLE_FLAGS
#define MOV_TRUN_SAMPLE_FLAGS
Definition: isom.h:295
MOVTrack::vos_data
uint8_t * vos_data
Definition: movenc.h:108
MOVTrack::first_packet_entry
int first_packet_entry
Definition: movenc.h:146
TAG_IS_AVCI
#define TAG_IS_AVCI(tag)
Definition: isom.h:313
MOVTrack::palette
uint32_t palette[AVPALETTE_COUNT]
Definition: movenc.h:158
AV_CODEC_ID_PCM_F64LE
Definition: avcodec.h:477
av_strlcat
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
AV_ROUND_DOWN
Round toward -infinity.
Definition: mathematics.h:82
codec_3gp_tags
static const AVCodecTag codec_3gp_tags[]
Definition: movenc.c:6487
AV_CODEC_ID_HEVC
Definition: avcodec.h:394
profile
mfxU16 profile
Definition: qsvenc.c:44
mov_write_tkhd_tag
static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, AVStream *st)
Definition: movenc.c:2638
mov_write_enda_tag
static int mov_write_enda_tag(AVIOContext *pb)
Definition: movenc.c:532
AV_FIELD_PROGRESSIVE
Definition: avcodec.h:1741
mov_write_hdlr_tag
static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2444
mov_write_gmhd_tag
static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2367
avio_wb16
void avio_wb16(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:480
write_matrix
static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c, int16_t d, int16_t tx, int16_t ty)
Definition: movenc.c:2624
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:380
eac3_info::data_rate
uint16_t data_rate
Definition: movenc.c:320
AV_PIX_FMT_RGB555BE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian , X=unused/undefined
Definition: pixfmt.h:115
MOVTrack::rtp_ctx
AVFormatContext * rtp_ctx
the format context for the hinting rtp muxer
Definition: movenc.h:123
AVCodecParameters::bits_per_raw_sample
int bits_per_raw_sample
This is the number of valid bits in each output sample.
Definition: avcodec.h:4207
AV_CODEC_ID_JPEG2000
Definition: avcodec.h:308
level
uint8_t level
Definition: svq3.c:207
AVSphericalMapping::bound_top
uint32_t bound_top
Distance from the top edge.
Definition: spherical.h:168
MOVTrack::track_id
int track_id
Definition: movenc.h:101
mov_write_udta_tag
static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3550
mov_write_trailer
static int mov_write_trailer(AVFormatContext *s)
Definition: movenc.c:6357
AVCOL_RANGE_MPEG
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:509
AV_CODEC_ID_PCM_F32LE
Definition: avcodec.h:475
AVChapter::start
int64_t start
Definition: avformat.h:1309
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
AVCodecParameters::sample_rate
int sample_rate
Audio only.
Definition: avcodec.h:4262
FF_MOV_FLAG_FRAG_KEYFRAME
#define FF_MOV_FLAG_FRAG_KEYFRAME
Definition: movenc.h:229
AVFMT_AVOID_NEG_TS_MAKE_ZERO
#define AVFMT_AVOID_NEG_TS_MAKE_ZERO
Shift timestamps so that they start at 0.
Definition: avformat.h:1661
mov_write_3gp_udta_tag
static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s, const char *tag, const char *str)
Definition: movenc.c:3502
mov_write_sv3d_tag
static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
Definition: movenc.c:1616
mov_write_audio_tag
static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:955
mov_write_mvhd_tag
static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
Definition: movenc.c:3067
AV_PIX_FMT_MONOBLACK
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb...
Definition: pixfmt.h:72
defined_frame_rate
static int defined_frame_rate(AVFormatContext *s, AVStream *st)
Definition: movenc.c:1278
avformat.h
Main libavformat public API header.
mov_write_tfrf_tags
static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:4142
AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:70
ff_sdp_write_media
void ff_sdp_write_media(char *buff, int size, AVStream *st, int idx, const char *dest_addr, const char *dest_type, int port, int ttl, AVFormatContext *fmt)
Append the media-specific SDP fragment for the media stream c to the buffer buff. ...
Definition: sdp.c:840
MOVTrack::packet_seq
int packet_seq
Definition: movenc.h:149
FF_DISABLE_DEPRECATION_WARNINGS
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:83
mov_write_tfra_tag
static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:4409
internal.h
common internal api header.
flush_put_bits
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:101
if
if(ret< 0)
Definition: vf_mcdeint.c:279
MOV_TFHD_BASE_DATA_OFFSET
#define MOV_TFHD_BASE_DATA_OFFSET
Definition: isom.h:283
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
mov_create_timecode_track
static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc)
Definition: movenc.c:5580
AV_PIX_FMT_MONOWHITE
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb...
Definition: pixfmt.h:71
AVSphericalMapping::projection
enum AVSphericalProjection projection
Projection type.
Definition: spherical.h:86
get_sample_flags
static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
Definition: movenc.c:3964
MOV_SYNC_SAMPLE
#define MOV_SYNC_SAMPLE
Definition: movenc.h:54
mov_write_tfxd_tag
static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:4086
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
AVCodecParameters::profile
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: avcodec.h:4212
AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:110
AVStream::disposition
int disposition
AV_DISPOSITION_* bit field.
Definition: avformat.h:950
MOVTrack::max_packet_size
uint32_t max_packet_size
Definition: movenc.h:126
mov_write_sidx_tag
static int mov_write_sidx_tag(AVIOContext *pb, MOVTrack *track, int ref_size, int total_sidx_size)
Definition: movenc.c:4285
AV_CODEC_ID_PCM_S16LE
Definition: avcodec.h:454
stereo3d.h
Stereoscopic video.
MOVTrack::src_track
int src_track
the track that this hint (or tmcd) track describes
Definition: movenc.h:122
init
static void init(int bf, int audio_preroll)
Definition: movenc.c:241
AVChapter::time_base
AVRational time_base
time base in which the start/end timestamps are specified
Definition: avformat.h:1308
av_grow_packet
int av_grow_packet(AVPacket *pkt, int grow_by)
Increase packet size, correctly zeroing padding.
Definition: avpacket.c:109
MOVTrack::multichannel_as_mono
int multichannel_as_mono
Definition: movenc.h:105
av_init_packet
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:33
AVStream::nb_frames
int64_t nb_frames
number of frames in this stream if known or 0
Definition: avformat.h:948
mov_write_wave_tag
static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:735
mov_write_traf_tag
static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int64_t moof_offset, int moof_size)
Definition: movenc.c:4222
AVDictionaryEntry::key
char * key
Definition: dict.h:86
init_put_bits
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:48
AVRational::den
int den
Denominator.
Definition: rational.h:60
MOVTrack::cluster
MOVIentry * cluster
Definition: movenc.h:109
bps
unsigned bps
Definition: movenc.c:1410
av_timecode_check_frame_rate
int av_timecode_check_frame_rate(AVRational rate)
Check if the timecode feature is available for the given frame rate.
Definition: timecode.c:179
VC1_CODE_ENTRYPOINT
Definition: vc1_common.h:39
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:777
MODE_IPOD
#define MODE_IPOD
Definition: movenc.h:42
mov_write_tmpo_tag
static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
Definition: movenc.c:3214
mov_write_mdta_hdlr_tag
static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
Definition: movenc.c:3377
FF_MOV_FLAG_DISABLE_CHPL
#define FF_MOV_FLAG_DISABLE_CHPL
Definition: movenc.h:235
mov_write_iods_tag
static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
Definition: movenc.c:3014
AVIO_DATA_MARKER_SYNC_POINT
A point in the output bytestream where a decoder can start decoding (i.e.
Definition: avio.h:122
mov_write_stss_tag
static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
Definition: movenc.c:232
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
avpriv_ac3_parse_header
int avpriv_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo **phdr)
Parse AC-3 frame header.
Definition: ac3_parser.c:50
AVDictionaryEntry::value
char * value
Definition: dict.h:87
MOVTrack::default_sample_flags
uint32_t default_sample_flags
Definition: movenc.h:129
FF_ENABLE_DEPRECATION_WARNINGS
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
MOVTrack::timescale
unsigned timescale
Definition: movenc.h:84
len
int len
Definition: vorbis_enc_data.h:452
FF_MOV_FLAG_DEFAULT_BASE_MOOF
#define FF_MOV_FLAG_DEFAULT_BASE_MOOF
Definition: movenc.h:236
mov_write_mfra_tag
static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
Definition: movenc.c:4433
AVCPBProperties::avg_bitrate
int avg_bitrate
Average bitrate of the stream, in bits per second.
Definition: avcodec.h:1369
AC3HeaderInfo::substreamid
int substreamid
substream identification
Definition: ac3.h:188
AV_CODEC_ID_ADPCM_MS
Definition: avcodec.h:498
VC1_CODE_SEQHDR
Definition: vc1_common.h:40
mov_write_vpcc_tag
static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1113
ff_stream_add_bitstream_filter
int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *args)
Add a bitstream filter to a stream.
Definition: utils.c:5324
eac3_info::ec3_done
uint8_t ec3_done
Definition: movenc.c:315
mov_write_string_data_tag
static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
Definition: movenc.c:3143
AVFormatContext::priv_data
void * priv_data
Format private data.
Definition: avformat.h:1377
mov_write_header
static int mov_write_header(AVFormatContext *s)
Definition: movenc.c:6073
AV_CODEC_ID_MP4ALS
Definition: avcodec.h:604
AV_PKT_DATA_CPB_PROPERTIES
This side data corresponds to the AVCPBProperties struct.
Definition: avcodec.h:1510
write_header
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:337
lrint
#define lrint
Definition: tablegen.h:53
AVSphericalMapping::bound_left
uint32_t bound_left
Distance from the left edge.
Definition: spherical.h:167
MOVMuxContext::reserved_header_pos
int64_t reserved_header_pos
Definition: movenc.h:199
ff_reshuffle_raw_rgb
int ff_reshuffle_raw_rgb(AVFormatContext *s, AVPacket **ppkt, AVCodecParameters *par, int expected_stride)
Reshuffles the lines to use the user specified stride.
Definition: rawutils.c:25
update_size
static int64_t update_size(AVIOContext *pb, int64_t pos)
Definition: movenc.c:125
AVCodecParameters::bits_per_coded_sample
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: avcodec.h:4194
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:4166
FF_PROFILE_AAC_HE
#define FF_PROFILE_AAC_HE
Definition: avcodec.h:3274
MOV_TRUN_DATA_OFFSET
#define MOV_TRUN_DATA_OFFSET
Definition: isom.h:291
MOVTrack::start_dts
int64_t start_dts
Definition: movenc.h:115
mov_write_mdhd_tag
static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:2566
CENC_KID_SIZE
#define CENC_KID_SIZE
Definition: movenccenc.h:29
AVCodecParameters::channels
int channels
Audio only.
Definition: avcodec.h:4258
LIBAVCODEC_IDENT
#define LIBAVCODEC_IDENT
Definition: version.h:42
AVPacket::dts
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1678
MOVTrack::tref_id
int tref_id
trackID of the referenced track
Definition: movenc.h:114
mov_write_ftyp_tag
static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
Definition: movenc.c:4471
FF_MOV_FLAG_USE_MDTA
#define FF_MOV_FLAG_USE_MDTA
Definition: movenc.h:243
AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:439
avio_wb32
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:382
check_pkt
static int check_pkt(AVFormatContext *s, AVPacket *pkt)
Definition: movenc.c:4977
MOVTrack::first_packet_seen
int first_packet_seen
Definition: movenc.h:147
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
vpcc.h
internal header for VPx codec configuration utilities.
avpriv_pix_fmt_bps_mov
const PixelFormatTag avpriv_pix_fmt_bps_mov[]
Definition: raw.c:322
codec_ipod_tags
static const AVCodecTag codec_ipod_tags[]
Definition: movenc.c:6534
compute_avg_bitrate
static unsigned compute_avg_bitrate(MOVTrack *track)
Definition: movenc.c:557
start
void INT64 start
Definition: avisynth_c.h:690
AV_DICT_IGNORE_SUFFIX
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
mov_write_rtp_tag
static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:1970
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_CODEC_ID_PCM_S32LE
Definition: avcodec.h:462
AV_FIELD_UNKNOWN
Definition: avcodec.h:1740
mov_write_tref_tag
static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
Definition: movenc.c:2870
MOVMuxContext::moov_written
int moov_written
Definition: movenc.h:187
MODE_F4V
#define MODE_F4V
Definition: movenc.h:44
AVStream::codecpar
AVCodecParameters * codecpar
Definition: avformat.h:1252
mov_write_uuidprof_tag
static int mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
Definition: movenc.c:4548
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
eac3_info::fscod
uint8_t fscod
Definition: movenc.c:325
AV_CODEC_ID_RAWVIDEO
Definition: avcodec.h:233
AVCodecParameters::codec_tag
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:4156
MOVTrack::cluster_capacity
unsigned cluster_capacity
Definition: movenc.h:110
AC3HeaderInfo::num_blocks
int num_blocks
number of audio blocks
Definition: ac3.h:192
ff_mov_write_packet
int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: movenc.c:5015
AC3HeaderInfo::channel_mode
uint8_t channel_mode
Definition: ac3.h:185
mov_get_lpcm_flags
static int mov_get_lpcm_flags(enum AVCodecID codec_id)
Compute flags for 'lpcm' tag.
Definition: movenc.c:889
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2335
AVPacket::stream_index
int stream_index
Definition: avcodec.h:1681
MODE_MOV
#define MODE_MOV
Definition: movenc.h:37
AV_CODEC_ID_ILBC
Definition: avcodec.h:618
AVStream::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avformat.h:926
ff_mov_get_channel_layout_tag
uint32_t ff_mov_get_channel_layout_tag(enum AVCodecID codec_id, uint64_t channel_layout, uint32_t *bitmap)
Get the channel layout tag for the specified codec id and channel layout.
Definition: mov_chan.c:494
cr
static double cr(void *priv, double x, double y)
Definition: vf_geq.c:107
ff_mov_cenc_write_stbl_atoms
void ff_mov_cenc_write_stbl_atoms(MOVMuxCencContext *ctx, AVIOContext *pb)
Write the cenc atoms that should reside inside stbl.
Definition: movenccenc.c:339
AVMEDIA_TYPE_SUBTITLE
Definition: avutil.h:204
mov_write_stsd_tag
static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
Definition: movenc.c:2077
AV_CODEC_ID_VP6F
Definition: avcodec.h:312
AV_CH_LAYOUT_MONO
#define AV_CH_LAYOUT_MONO
Definition: channel_layout.h:85
MKTAG
#define MKTAG(a, b, c, d)
Definition: common.h:342
AVFMT_TS_NEGATIVE
#define AVFMT_TS_NEGATIVE
Format allows muxing negative timestamps.
Definition: avformat.h:501
eac3_info::num_blocks
uint8_t num_blocks
Definition: movenc.c:316
AVFormatContext::io_open
int(* io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
Definition: avformat.h:1909
MOVTrack::eac3_priv
void * eac3_priv
Definition: movenc.h:154
enable_tracks
static void enable_tracks(AVFormatContext *s)
Definition: movenc.c:5629
AVTimecode::flags
uint32_t flags
flags such as drop frame, +24 hours support, ...
Definition: timecode.h:43
codec_mp4_tags
const AVCodecTag codec_mp4_tags[]
Definition: movenc.c:6498
MODE_ISM
#define MODE_ISM
Definition: movenc.h:43
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:87
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
ff_data_to_hex
char * ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase)
Definition: utils.c:4688
AVPacket
This structure stores compressed data.
Definition: avcodec.h:1656
MOVFragmentInfo::offset
int64_t offset
Definition: movenc.h:74
MOVMuxContext::min_fragment_duration
int min_fragment_duration
Definition: movenc.h:190
MOVMuxContext::tracks
MOVTrack * tracks
Definition: movenc.h:178
PROFILE_ADVANCED
Definition: vc1_common.h:52
eac3_info::num_ind_sub
uint8_t num_ind_sub
Definition: movenc.c:322
find_next_marker
static av_always_inline const uint8_t * find_next_marker(const uint8_t *src, const uint8_t *end)
Find VC-1 marker in buffer.
Definition: vc1_common.h:59
eac3_info::num_dep_sub
uint8_t num_dep_sub
Definition: movenc.c:338
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1672
eac3_info::bsid
uint8_t bsid
Definition: movenc.c:327
AV_CODEC_ID_VORBIS
Definition: avcodec.h:561
MOVTrack::mdat_buf
AVIOContext * mdat_buf
Definition: movenc.h:134
ff_isom_write_avcc
int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len)
Definition: avc.c:106
t2
#define t2
Definition: regdef.h:30
AVIO_DATA_MARKER_HEADER
Header data; this needs to be present for the stream to be decodeable.
Definition: avio.h:115
FFMAX3
#define FFMAX3(a, b, c)
Definition: common.h:95
MOVMuxContext::nb_streams
int nb_streams
Definition: movenc.h:173
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
avio_printf
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
AV_CODEC_ID_PCM_S32BE
Definition: avcodec.h:463
MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC
#define MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC
Definition: isom.h:299
FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX
#define FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX
Tell ff_put_wav_header() to use WAVEFORMATEX even for PCM codecs.
Definition: riff.h:54
compute_moov_size
static int compute_moov_size(AVFormatContext *s)
Definition: movenc.c:6251
mov_pix_fmt_tags
static const struct @217 mov_pix_fmt_tags[]
a
a
Definition: h264pred_template.c:468
MOVMuxContext::encryption_kid
uint8_t * encryption_kid
Definition: movenc.h:216
name
const char * name
Definition: opengl_enc.c:103
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:26
get_moov_size
static int get_moov_size(AVFormatContext *s)
Definition: movenc.c:6220
put_bits.h
bitstream writer API
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