FFmpeg
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 "av1.h"
34 #include "avc.h"
35 #include "libavcodec/ac3_parser_internal.h"
36 #include "libavcodec/dnxhddata.h"
37 #include "libavcodec/flac.h"
38 #include "libavcodec/get_bits.h"
39 
40 #include "libavcodec/internal.h"
41 #include "libavcodec/put_bits.h"
42 #include "libavcodec/vc1_common.h"
43 #include "libavcodec/raw.h"
44 #include "internal.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/intfloat.h"
47 #include "libavutil/mathematics.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/opt.h"
50 #include "libavutil/dict.h"
51 #include "libavutil/pixdesc.h"
52 #include "libavutil/stereo3d.h"
53 #include "libavutil/timecode.h"
54 #include "libavutil/color_utils.h"
55 #include "hevc.h"
56 #include "rtpenc.h"
57 #include "mov_chan.h"
58 #include "vpcc.h"
59 
60 static const AVOption options[] = {
61  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62  { "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" },
63  { "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 },
64  { "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" },
65  { "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" },
66  { "frag_every_frame", "Fragment at every frame", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_EVERY_FRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
67  { "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" },
68  { "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" },
69  { "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" },
70  { "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" },
71  { "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" },
72  { "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" },
73  { "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" },
74  { "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" },
75  { "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" },
76  { "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" },
77  { "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" },
78  { "skip_sidx", "Skip writing of sidx atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
79  { "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" },
80  { "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" },
81  { "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" },
82  { "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" },
83  { "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" },
84  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
85  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
86  { "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},
87  { "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},
88  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
89  { "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},
90  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
91  { "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},
92  { "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},
93  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
94  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
95  { "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},
96  { "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},
97  { "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 },
98  { "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 },
99  { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
100  { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
101  { "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},
102  { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
103  { "write_prft", "Write producer reference time box with specified time source", offsetof(MOVMuxContext, write_prft), AV_OPT_TYPE_INT, {.i64 = MOV_PRFT_NONE}, 0, MOV_PRFT_NB-1, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
104  { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
105  { "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
106  { "empty_hdlr_name", "write zero-length name string in hdlr atoms within mdia and minf atoms", offsetof(MOVMuxContext, empty_hdlr_name), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
107  { NULL },
108 };
109 
110 #define MOV_CLASS(flavor)\
111 static const AVClass flavor ## _muxer_class = {\
112  .class_name = #flavor " muxer",\
113  .item_name = av_default_item_name,\
114  .option = options,\
115  .version = LIBAVUTIL_VERSION_INT,\
116 };
117 
118 static int get_moov_size(AVFormatContext *s);
119 
120 static int utf8len(const uint8_t *b)
121 {
122  int len = 0;
123  int val;
124  while (*b) {
125  GET_UTF8(val, *b++, return -1;)
126  len++;
127  }
128  return len;
129 }
130 
131 //FIXME support 64 bit variant with wide placeholders
132 static int64_t update_size(AVIOContext *pb, int64_t pos)
133 {
134  int64_t curpos = avio_tell(pb);
135  avio_seek(pb, pos, SEEK_SET);
136  avio_wb32(pb, curpos - pos); /* rewrite size */
137  avio_seek(pb, curpos, SEEK_SET);
138 
139  return curpos - pos;
140 }
141 
142 static int co64_required(const MOVTrack *track)
143 {
144  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
145  return 1;
146  return 0;
147 }
148 
149 static int is_cover_image(const AVStream *st)
150 {
151  /* Eg. AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS
152  * is encoded as sparse video track */
153  return st && st->disposition == AV_DISPOSITION_ATTACHED_PIC;
154 }
155 
156 static int rtp_hinting_needed(const AVStream *st)
157 {
158  /* Add hint tracks for each real audio and video stream */
159  if (is_cover_image(st))
160  return 0;
161  return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
162  st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
163 }
164 
165 /* Chunk offset atom */
166 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
167 {
168  int i;
169  int mode64 = co64_required(track); // use 32 bit size variant if possible
170  int64_t pos = avio_tell(pb);
171  avio_wb32(pb, 0); /* size */
172  if (mode64)
173  ffio_wfourcc(pb, "co64");
174  else
175  ffio_wfourcc(pb, "stco");
176  avio_wb32(pb, 0); /* version & flags */
177  avio_wb32(pb, track->chunkCount); /* entry count */
178  for (i = 0; i < track->entry; i++) {
179  if (!track->cluster[i].chunkNum)
180  continue;
181  if (mode64 == 1)
182  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
183  else
184  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
185  }
186  return update_size(pb, pos);
187 }
188 
189 /* Sample size atom */
190 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
191 {
192  int equalChunks = 1;
193  int i, j, entries = 0, tst = -1, oldtst = -1;
194 
195  int64_t pos = avio_tell(pb);
196  avio_wb32(pb, 0); /* size */
197  ffio_wfourcc(pb, "stsz");
198  avio_wb32(pb, 0); /* version & flags */
199 
200  for (i = 0; i < track->entry; i++) {
201  tst = track->cluster[i].size / track->cluster[i].entries;
202  if (oldtst != -1 && tst != oldtst)
203  equalChunks = 0;
204  oldtst = tst;
205  entries += track->cluster[i].entries;
206  }
207  if (equalChunks && track->entry) {
208  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
209  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
210  avio_wb32(pb, sSize); // sample size
211  avio_wb32(pb, entries); // sample count
212  } else {
213  avio_wb32(pb, 0); // sample size
214  avio_wb32(pb, entries); // sample count
215  for (i = 0; i < track->entry; i++) {
216  for (j = 0; j < track->cluster[i].entries; j++) {
217  avio_wb32(pb, track->cluster[i].size /
218  track->cluster[i].entries);
219  }
220  }
221  }
222  return update_size(pb, pos);
223 }
224 
225 /* Sample to chunk atom */
226 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
227 {
228  int index = 0, oldval = -1, i;
229  int64_t entryPos, curpos;
230 
231  int64_t pos = avio_tell(pb);
232  avio_wb32(pb, 0); /* size */
233  ffio_wfourcc(pb, "stsc");
234  avio_wb32(pb, 0); // version & flags
235  entryPos = avio_tell(pb);
236  avio_wb32(pb, track->chunkCount); // entry count
237  for (i = 0; i < track->entry; i++) {
238  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
239  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
240  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
241  avio_wb32(pb, 0x1); // sample description index
242  oldval = track->cluster[i].samples_in_chunk;
243  index++;
244  }
245  }
246  curpos = avio_tell(pb);
247  avio_seek(pb, entryPos, SEEK_SET);
248  avio_wb32(pb, index); // rewrite size
249  avio_seek(pb, curpos, SEEK_SET);
250 
251  return update_size(pb, pos);
252 }
253 
254 /* Sync sample atom */
255 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
256 {
257  int64_t curpos, entryPos;
258  int i, index = 0;
259  int64_t pos = avio_tell(pb);
260  avio_wb32(pb, 0); // size
261  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
262  avio_wb32(pb, 0); // version & flags
263  entryPos = avio_tell(pb);
264  avio_wb32(pb, track->entry); // entry count
265  for (i = 0; i < track->entry; i++) {
266  if (track->cluster[i].flags & flag) {
267  avio_wb32(pb, i + 1);
268  index++;
269  }
270  }
271  curpos = avio_tell(pb);
272  avio_seek(pb, entryPos, SEEK_SET);
273  avio_wb32(pb, index); // rewrite size
274  avio_seek(pb, curpos, SEEK_SET);
275  return update_size(pb, pos);
276 }
277 
278 /* Sample dependency atom */
279 static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track)
280 {
281  int i;
282  uint8_t leading, dependent, reference, redundancy;
283  int64_t pos = avio_tell(pb);
284  avio_wb32(pb, 0); // size
285  ffio_wfourcc(pb, "sdtp");
286  avio_wb32(pb, 0); // version & flags
287  for (i = 0; i < track->entry; i++) {
288  dependent = MOV_SAMPLE_DEPENDENCY_YES;
289  leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN;
290  if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) {
291  reference = MOV_SAMPLE_DEPENDENCY_NO;
292  }
293  if (track->cluster[i].flags & MOV_SYNC_SAMPLE) {
294  dependent = MOV_SAMPLE_DEPENDENCY_NO;
295  }
296  avio_w8(pb, (leading << 6) | (dependent << 4) |
297  (reference << 2) | redundancy);
298  }
299  return update_size(pb, pos);
300 }
301 
302 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
303 {
304  avio_wb32(pb, 0x11); /* size */
305  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
306  else ffio_wfourcc(pb, "damr");
307  ffio_wfourcc(pb, "FFMP");
308  avio_w8(pb, 0); /* decoder version */
309 
310  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
311  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
312  avio_w8(pb, 0x01); /* Frames per sample */
313  return 0x11;
314 }
315 
316 static int mov_write_ac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
317 {
318  GetBitContext gbc;
319  PutBitContext pbc;
320  uint8_t buf[3];
321  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
322 
323  if (track->vos_len < 7) {
324  av_log(s, AV_LOG_ERROR,
325  "Cannot write moov atom before AC3 packets."
326  " Set the delay_moov flag to fix this.\n");
327  return AVERROR(EINVAL);
328  }
329 
330  avio_wb32(pb, 11);
331  ffio_wfourcc(pb, "dac3");
332 
333  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
334  fscod = get_bits(&gbc, 2);
335  frmsizecod = get_bits(&gbc, 6);
336  bsid = get_bits(&gbc, 5);
337  bsmod = get_bits(&gbc, 3);
338  acmod = get_bits(&gbc, 3);
339  if (acmod == 2) {
340  skip_bits(&gbc, 2); // dsurmod
341  } else {
342  if ((acmod & 1) && acmod != 1)
343  skip_bits(&gbc, 2); // cmixlev
344  if (acmod & 4)
345  skip_bits(&gbc, 2); // surmixlev
346  }
347  lfeon = get_bits1(&gbc);
348 
349  init_put_bits(&pbc, buf, sizeof(buf));
350  put_bits(&pbc, 2, fscod);
351  put_bits(&pbc, 5, bsid);
352  put_bits(&pbc, 3, bsmod);
353  put_bits(&pbc, 3, acmod);
354  put_bits(&pbc, 1, lfeon);
355  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
356  put_bits(&pbc, 5, 0); // reserved
357 
358  flush_put_bits(&pbc);
359  avio_write(pb, buf, sizeof(buf));
360 
361  return 11;
362 }
363 
364 struct eac3_info {
365  AVPacket pkt;
366  uint8_t ec3_done;
367  uint8_t num_blocks;
368 
369  /* Layout of the EC3SpecificBox */
370  /* maximum bitrate */
371  uint16_t data_rate;
372  /* number of independent substreams */
373  uint8_t num_ind_sub;
374  struct {
375  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
376  uint8_t fscod;
377  /* bit stream identification 5 bits */
378  uint8_t bsid;
379  /* one bit reserved */
380  /* audio service mixing (not supported yet) 1 bit */
381  /* bit stream mode 3 bits */
382  uint8_t bsmod;
383  /* audio coding mode 3 bits */
384  uint8_t acmod;
385  /* sub woofer on 1 bit */
386  uint8_t lfeon;
387  /* 3 bits reserved */
388  /* number of dependent substreams associated with this substream 4 bits */
389  uint8_t num_dep_sub;
390  /* channel locations of the dependent substream(s), if any, 9 bits */
391  uint16_t chan_loc;
392  /* if there is no dependent substream, then one bit reserved instead */
393  } substream[1]; /* TODO: support 8 independent substreams */
394 };
395 
396 #if CONFIG_AC3_PARSER
397 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
398 {
399  AC3HeaderInfo *hdr = NULL;
400  struct eac3_info *info;
401  int num_blocks, ret;
402 
403  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
404  return AVERROR(ENOMEM);
405  info = track->eac3_priv;
406 
407  if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) < 0) {
408  /* drop the packets until we see a good one */
409  if (!track->entry) {
410  av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
411  ret = 0;
412  } else
413  ret = AVERROR_INVALIDDATA;
414  goto end;
415  }
416 
417  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
418  num_blocks = hdr->num_blocks;
419 
420  if (!info->ec3_done) {
421  /* AC-3 substream must be the first one */
422  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) {
423  ret = AVERROR(EINVAL);
424  goto end;
425  }
426 
427  /* this should always be the case, given that our AC-3 parser
428  * concatenates dependent frames to their independent parent */
429  if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
430  /* substream ids must be incremental */
431  if (hdr->substreamid > info->num_ind_sub + 1) {
432  ret = AVERROR(EINVAL);
433  goto end;
434  }
435 
436  if (hdr->substreamid == info->num_ind_sub + 1) {
437  //info->num_ind_sub++;
438  avpriv_request_sample(mov->fc, "Multiple independent substreams");
439  ret = AVERROR_PATCHWELCOME;
440  goto end;
441  } else if (hdr->substreamid < info->num_ind_sub ||
442  hdr->substreamid == 0 && info->substream[0].bsid) {
443  info->ec3_done = 1;
444  goto concatenate;
445  }
446  } else {
447  if (hdr->substreamid != 0) {
448  avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
449  ret = AVERROR_PATCHWELCOME;
450  goto end;
451  }
452  }
453 
454  /* fill the info needed for the "dec3" atom */
455  info->substream[hdr->substreamid].fscod = hdr->sr_code;
456  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
457  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
458  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
459  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
460 
461  /* Parse dependent substream(s), if any */
462  if (pkt->size != hdr->frame_size) {
463  int cumul_size = hdr->frame_size;
464  int parent = hdr->substreamid;
465 
466  while (cumul_size != pkt->size) {
467  GetBitContext gbc;
468  int i;
469  ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size);
470  if (ret < 0)
471  goto end;
472  if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT) {
473  ret = AVERROR(EINVAL);
474  goto end;
475  }
476  info->substream[parent].num_dep_sub++;
477  ret /= 8;
478 
479  /* header is parsed up to lfeon, but custom channel map may be needed */
480  init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret);
481  /* skip bsid */
482  skip_bits(&gbc, 5);
483  /* skip volume control params */
484  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
485  skip_bits(&gbc, 5); // skip dialog normalization
486  if (get_bits1(&gbc)) {
487  skip_bits(&gbc, 8); // skip compression gain word
488  }
489  }
490  /* get the dependent stream channel map, if exists */
491  if (get_bits1(&gbc))
492  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
493  else
494  info->substream[parent].chan_loc |= hdr->channel_mode;
495  cumul_size += hdr->frame_size;
496  }
497  }
498  }
499 
500 concatenate:
501  if (!info->num_blocks && num_blocks == 6) {
502  ret = pkt->size;
503  goto end;
504  }
505  else if (info->num_blocks + num_blocks > 6) {
506  ret = AVERROR_INVALIDDATA;
507  goto end;
508  }
509 
510  if (!info->num_blocks) {
511  ret = av_packet_ref(&info->pkt, pkt);
512  if (!ret)
513  info->num_blocks = num_blocks;
514  goto end;
515  } else {
516  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
517  goto end;
518  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
519  info->num_blocks += num_blocks;
520  info->pkt.duration += pkt->duration;
521  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
522  goto end;
523  if (info->num_blocks != 6)
524  goto end;
525  av_packet_unref(pkt);
526  av_packet_move_ref(pkt, &info->pkt);
527  info->num_blocks = 0;
528  }
529  ret = pkt->size;
530 
531 end:
532  av_free(hdr);
533 
534  return ret;
535 }
536 #endif
537 
538 static int mov_write_eac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
539 {
540  PutBitContext pbc;
541  uint8_t *buf;
542  struct eac3_info *info;
543  int size, i;
544 
545  if (!track->eac3_priv) {
546  av_log(s, AV_LOG_ERROR,
547  "Cannot write moov atom before EAC3 packets parsed.\n");
548  return AVERROR(EINVAL);
549  }
550 
551  info = track->eac3_priv;
552  size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
553  buf = av_malloc(size);
554  if (!buf) {
555  return AVERROR(ENOMEM);
556  }
557 
558  init_put_bits(&pbc, buf, size);
559  put_bits(&pbc, 13, info->data_rate);
560  put_bits(&pbc, 3, info->num_ind_sub);
561  for (i = 0; i <= info->num_ind_sub; i++) {
562  put_bits(&pbc, 2, info->substream[i].fscod);
563  put_bits(&pbc, 5, info->substream[i].bsid);
564  put_bits(&pbc, 1, 0); /* reserved */
565  put_bits(&pbc, 1, 0); /* asvc */
566  put_bits(&pbc, 3, info->substream[i].bsmod);
567  put_bits(&pbc, 3, info->substream[i].acmod);
568  put_bits(&pbc, 1, info->substream[i].lfeon);
569  put_bits(&pbc, 5, 0); /* reserved */
570  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
571  if (!info->substream[i].num_dep_sub) {
572  put_bits(&pbc, 1, 0); /* reserved */
573  } else {
574  put_bits(&pbc, 9, info->substream[i].chan_loc);
575  }
576  }
577  flush_put_bits(&pbc);
578  size = put_bits_count(&pbc) >> 3;
579 
580  avio_wb32(pb, size + 8);
581  ffio_wfourcc(pb, "dec3");
582  avio_write(pb, buf, size);
583 
584  av_free(buf);
585 
586  return size;
587 }
588 
589 /**
590  * This function writes extradata "as is".
591  * Extradata must be formatted like a valid atom (with size and tag).
592  */
593 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
594 {
595  avio_write(pb, track->par->extradata, track->par->extradata_size);
596  return track->par->extradata_size;
597 }
598 
599 static int mov_write_enda_tag(AVIOContext *pb)
600 {
601  avio_wb32(pb, 10);
602  ffio_wfourcc(pb, "enda");
603  avio_wb16(pb, 1); /* little endian */
604  return 10;
605 }
606 
607 static int mov_write_enda_tag_be(AVIOContext *pb)
608 {
609  avio_wb32(pb, 10);
610  ffio_wfourcc(pb, "enda");
611  avio_wb16(pb, 0); /* big endian */
612  return 10;
613 }
614 
615 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
616 {
617  int i = 3;
618  avio_w8(pb, tag);
619  for (; i > 0; i--)
620  avio_w8(pb, (size >> (7 * i)) | 0x80);
621  avio_w8(pb, size & 0x7F);
622 }
623 
624 static unsigned compute_avg_bitrate(MOVTrack *track)
625 {
626  uint64_t size = 0;
627  int i;
628  if (!track->track_duration)
629  return 0;
630  for (i = 0; i < track->entry; i++)
631  size += track->cluster[i].size;
632  return size * 8 * track->timescale / track->track_duration;
633 }
634 
635 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
636 {
637  AVCPBProperties *props;
638  int64_t pos = avio_tell(pb);
639  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
640  unsigned avg_bitrate;
641 
642  avio_wb32(pb, 0); // size
643  ffio_wfourcc(pb, "esds");
644  avio_wb32(pb, 0); // Version
645 
646  // ES descriptor
647  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
648  avio_wb16(pb, track->track_id);
649  avio_w8(pb, 0x00); // flags (= no flags)
650 
651  // DecoderConfig descriptor
652  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
653 
654  // Object type indication
655  if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
656  track->par->codec_id == AV_CODEC_ID_MP3) &&
657  track->par->sample_rate > 24000)
658  avio_w8(pb, 0x6B); // 11172-3
659  else
660  avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
661 
662  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
663  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
664  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
665  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
666  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
667  avio_w8(pb, 0x15); // flags (= Audiostream)
668  else
669  avio_w8(pb, 0x11); // flags (= Visualstream)
670 
671  props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
672  NULL);
673 
674  avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
675 
676  avg_bitrate = compute_avg_bitrate(track);
677  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)
678  avio_wb32(pb, avg_bitrate);
679 
680  if (track->vos_len) {
681  // DecoderSpecific info descriptor
682  put_descr(pb, 0x05, track->vos_len);
683  avio_write(pb, track->vos_data, track->vos_len);
684  }
685 
686  // SL descriptor
687  put_descr(pb, 0x06, 1);
688  avio_w8(pb, 0x02);
689  return update_size(pb, pos);
690 }
691 
692 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
693 {
694  return codec_id == AV_CODEC_ID_PCM_S24LE ||
695  codec_id == AV_CODEC_ID_PCM_S32LE ||
696  codec_id == AV_CODEC_ID_PCM_F32LE ||
697  codec_id == AV_CODEC_ID_PCM_F64LE;
698 }
699 
700 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
701 {
702  return codec_id == AV_CODEC_ID_PCM_S24BE ||
703  codec_id == AV_CODEC_ID_PCM_S32BE ||
704  codec_id == AV_CODEC_ID_PCM_F32BE ||
705  codec_id == AV_CODEC_ID_PCM_F64BE;
706 }
707 
708 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
709 {
710  int ret;
711  int64_t pos = avio_tell(pb);
712  avio_wb32(pb, 0);
713  avio_wl32(pb, track->tag); // store it byteswapped
714  track->par->codec_tag = av_bswap16(track->tag >> 16);
715  if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
716  return ret;
717  return update_size(pb, pos);
718 }
719 
720 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
721 {
722  int ret;
723  int64_t pos = avio_tell(pb);
724  avio_wb32(pb, 0);
725  ffio_wfourcc(pb, "wfex");
726  if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
727  return ret;
728  return update_size(pb, pos);
729 }
730 
731 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
732 {
733  int64_t pos = avio_tell(pb);
734  avio_wb32(pb, 0);
735  ffio_wfourcc(pb, "dfLa");
736  avio_w8(pb, 0); /* version */
737  avio_wb24(pb, 0); /* flags */
738 
739  /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
740  if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
741  return AVERROR_INVALIDDATA;
742 
743  /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
744  avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
745  avio_wb24(pb, track->par->extradata_size); /* Length */
746  avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
747 
748  return update_size(pb, pos);
749 }
750 
751 static int mov_write_dops_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
752 {
753  int64_t pos = avio_tell(pb);
754  avio_wb32(pb, 0);
755  ffio_wfourcc(pb, "dOps");
756  avio_w8(pb, 0); /* Version */
757  if (track->par->extradata_size < 19) {
758  av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
759  return AVERROR_INVALIDDATA;
760  }
761  /* extradata contains an Ogg OpusHead, other than byte-ordering and
762  OpusHead's preceeding magic/version, OpusSpecificBox is currently
763  identical. */
764  avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
765  avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
766  avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
767  avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
768  /* Write the rest of the header out without byte-swapping. */
769  avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 18);
770 
771  return update_size(pb, pos);
772 }
773 
774 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
775 {
776  uint32_t layout_tag, bitmap;
777  int64_t pos = avio_tell(pb);
778 
779  layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
780  track->par->channel_layout,
781  &bitmap);
782  if (!layout_tag) {
783  av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
784  "lack of channel information\n");
785  return 0;
786  }
787 
788  if (track->multichannel_as_mono)
789  return 0;
790 
791  avio_wb32(pb, 0); // Size
792  ffio_wfourcc(pb, "chan"); // Type
793  avio_w8(pb, 0); // Version
794  avio_wb24(pb, 0); // Flags
795  avio_wb32(pb, layout_tag); // mChannelLayoutTag
796  avio_wb32(pb, bitmap); // mChannelBitmap
797  avio_wb32(pb, 0); // mNumberChannelDescriptions
798 
799  return update_size(pb, pos);
800 }
801 
802 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
803 {
804  int64_t pos = avio_tell(pb);
805 
806  avio_wb32(pb, 0); /* size */
807  ffio_wfourcc(pb, "wave");
808 
809  if (track->par->codec_id != AV_CODEC_ID_QDM2) {
810  avio_wb32(pb, 12); /* size */
811  ffio_wfourcc(pb, "frma");
812  avio_wl32(pb, track->tag);
813  }
814 
815  if (track->par->codec_id == AV_CODEC_ID_AAC) {
816  /* useless atom needed by mplayer, ipod, not needed by quicktime */
817  avio_wb32(pb, 12); /* size */
818  ffio_wfourcc(pb, "mp4a");
819  avio_wb32(pb, 0);
820  mov_write_esds_tag(pb, track);
821  } else if (mov_pcm_le_gt16(track->par->codec_id)) {
822  mov_write_enda_tag(pb);
823  } else if (mov_pcm_be_gt16(track->par->codec_id)) {
824  mov_write_enda_tag_be(pb);
825  } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
826  mov_write_amr_tag(pb, track);
827  } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
828  mov_write_ac3_tag(s, pb, track);
829  } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
830  mov_write_eac3_tag(s, pb, track);
831  } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
832  track->par->codec_id == AV_CODEC_ID_QDM2) {
833  mov_write_extradata_tag(pb, track);
834  } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
835  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
836  mov_write_ms_tag(s, pb, track);
837  }
838 
839  avio_wb32(pb, 8); /* size */
840  avio_wb32(pb, 0); /* null tag */
841 
842  return update_size(pb, pos);
843 }
844 
845 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
846 {
847  uint8_t *unescaped;
848  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
849  int unescaped_size, seq_found = 0;
850  int level = 0, interlace = 0;
851  int packet_seq = track->vc1_info.packet_seq;
852  int packet_entry = track->vc1_info.packet_entry;
853  int slices = track->vc1_info.slices;
854  PutBitContext pbc;
855 
856  if (track->start_dts == AV_NOPTS_VALUE) {
857  /* No packets written yet, vc1_info isn't authoritative yet. */
858  /* Assume inline sequence and entry headers. */
859  packet_seq = packet_entry = 1;
860  av_log(NULL, AV_LOG_WARNING,
861  "moov atom written before any packets, unable to write correct "
862  "dvc1 atom. Set the delay_moov flag to fix this.\n");
863  }
864 
865  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
866  if (!unescaped)
867  return AVERROR(ENOMEM);
868  start = find_next_marker(track->vos_data, end);
869  for (next = start; next < end; start = next) {
870  GetBitContext gb;
871  int size;
872  next = find_next_marker(start + 4, end);
873  size = next - start - 4;
874  if (size <= 0)
875  continue;
876  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
877  init_get_bits(&gb, unescaped, 8 * unescaped_size);
878  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
879  int profile = get_bits(&gb, 2);
880  if (profile != PROFILE_ADVANCED) {
881  av_free(unescaped);
882  return AVERROR(ENOSYS);
883  }
884  seq_found = 1;
885  level = get_bits(&gb, 3);
886  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
887  * width, height */
888  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
889  skip_bits(&gb, 1); /* broadcast */
890  interlace = get_bits1(&gb);
891  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
892  }
893  }
894  if (!seq_found) {
895  av_free(unescaped);
896  return AVERROR(ENOSYS);
897  }
898 
899  init_put_bits(&pbc, buf, 7);
900  /* VC1DecSpecStruc */
901  put_bits(&pbc, 4, 12); /* profile - advanced */
902  put_bits(&pbc, 3, level);
903  put_bits(&pbc, 1, 0); /* reserved */
904  /* VC1AdvDecSpecStruc */
905  put_bits(&pbc, 3, level);
906  put_bits(&pbc, 1, 0); /* cbr */
907  put_bits(&pbc, 6, 0); /* reserved */
908  put_bits(&pbc, 1, !interlace); /* no interlace */
909  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
910  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
911  put_bits(&pbc, 1, !slices); /* no slice code */
912  put_bits(&pbc, 1, 0); /* no bframe */
913  put_bits(&pbc, 1, 0); /* reserved */
914 
915  /* framerate */
916  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
917  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
918  else
919  put_bits32(&pbc, 0xffffffff);
920 
921  flush_put_bits(&pbc);
922 
923  av_free(unescaped);
924 
925  return 0;
926 }
927 
928 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
929 {
930  uint8_t buf[7] = { 0 };
931  int ret;
932 
933  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
934  return ret;
935 
936  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
937  ffio_wfourcc(pb, "dvc1");
938  avio_write(pb, buf, sizeof(buf));
939  avio_write(pb, track->vos_data, track->vos_len);
940 
941  return 0;
942 }
943 
944 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
945 {
946  avio_wb32(pb, track->vos_len + 8);
947  ffio_wfourcc(pb, "glbl");
948  avio_write(pb, track->vos_data, track->vos_len);
949  return 8 + track->vos_len;
950 }
951 
952 /**
953  * Compute flags for 'lpcm' tag.
954  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
955  */
956 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
957 {
958  switch (codec_id) {
959  case AV_CODEC_ID_PCM_F32BE:
960  case AV_CODEC_ID_PCM_F64BE:
961  return 11;
962  case AV_CODEC_ID_PCM_F32LE:
963  case AV_CODEC_ID_PCM_F64LE:
964  return 9;
965  case AV_CODEC_ID_PCM_U8:
966  return 10;
967  case AV_CODEC_ID_PCM_S16BE:
968  case AV_CODEC_ID_PCM_S24BE:
969  case AV_CODEC_ID_PCM_S32BE:
970  return 14;
971  case AV_CODEC_ID_PCM_S8:
972  case AV_CODEC_ID_PCM_S16LE:
973  case AV_CODEC_ID_PCM_S24LE:
974  case AV_CODEC_ID_PCM_S32LE:
975  return 12;
976  default:
977  return 0;
978  }
979 }
980 
981 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
982 {
983  int64_t next_dts;
984 
985  if (cluster_idx >= track->entry)
986  return 0;
987 
988  if (cluster_idx + 1 == track->entry)
989  next_dts = track->track_duration + track->start_dts;
990  else
991  next_dts = track->cluster[cluster_idx + 1].dts;
992 
993  next_dts -= track->cluster[cluster_idx].dts;
994 
995  av_assert0(next_dts >= 0);
996  av_assert0(next_dts <= INT_MAX);
997 
998  return next_dts;
999 }
1000 
1001 static int get_samples_per_packet(MOVTrack *track)
1002 {
1003  int i, first_duration;
1004 
1005 // return track->par->frame_size;
1006 
1007  /* use 1 for raw PCM */
1008  if (!track->audio_vbr)
1009  return 1;
1010 
1011  /* check to see if duration is constant for all clusters */
1012  if (!track->entry)
1013  return 0;
1014  first_duration = get_cluster_duration(track, 0);
1015  for (i = 1; i < track->entry; i++) {
1016  if (get_cluster_duration(track, i) != first_duration)
1017  return 0;
1018  }
1019  return first_duration;
1020 }
1021 
1022 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1023 {
1024  int64_t pos = avio_tell(pb);
1025  int version = 0;
1026  uint32_t tag = track->tag;
1027  int ret = 0;
1028 
1029  if (track->mode == MODE_MOV) {
1030  if (track->timescale > UINT16_MAX || !track->par->channels) {
1031  if (mov_get_lpcm_flags(track->par->codec_id))
1032  tag = AV_RL32("lpcm");
1033  version = 2;
1034  } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1035  mov_pcm_be_gt16(track->par->codec_id) ||
1036  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1037  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1038  track->par->codec_id == AV_CODEC_ID_QDM2) {
1039  version = 1;
1040  }
1041  }
1042 
1043  avio_wb32(pb, 0); /* size */
1044  if (mov->encryption_scheme != MOV_ENC_NONE) {
1045  ffio_wfourcc(pb, "enca");
1046  } else {
1047  avio_wl32(pb, tag); // store it byteswapped
1048  }
1049  avio_wb32(pb, 0); /* Reserved */
1050  avio_wb16(pb, 0); /* Reserved */
1051  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1052 
1053  /* SoundDescription */
1054  avio_wb16(pb, version); /* Version */
1055  avio_wb16(pb, 0); /* Revision level */
1056  avio_wb32(pb, 0); /* Reserved */
1057 
1058  if (version == 2) {
1059  avio_wb16(pb, 3);
1060  avio_wb16(pb, 16);
1061  avio_wb16(pb, 0xfffe);
1062  avio_wb16(pb, 0);
1063  avio_wb32(pb, 0x00010000);
1064  avio_wb32(pb, 72);
1065  avio_wb64(pb, av_double2int(track->par->sample_rate));
1066  avio_wb32(pb, track->par->channels);
1067  avio_wb32(pb, 0x7F000000);
1068  avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
1069  avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1070  avio_wb32(pb, track->sample_size);
1071  avio_wb32(pb, get_samples_per_packet(track));
1072  } else {
1073  if (track->mode == MODE_MOV) {
1074  avio_wb16(pb, track->par->channels);
1075  if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1076  track->par->codec_id == AV_CODEC_ID_PCM_S8)
1077  avio_wb16(pb, 8); /* bits per sample */
1078  else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1079  avio_wb16(pb, track->par->bits_per_coded_sample);
1080  else
1081  avio_wb16(pb, 16);
1082  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1083  } else { /* reserved for mp4/3gp */
1084  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1085  track->par->codec_id == AV_CODEC_ID_ALAC ||
1086  track->par->codec_id == AV_CODEC_ID_OPUS) {
1087  avio_wb16(pb, track->par->channels);
1088  } else {
1089  avio_wb16(pb, 2);
1090  }
1091  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1092  track->par->codec_id == AV_CODEC_ID_ALAC) {
1093  avio_wb16(pb, track->par->bits_per_raw_sample);
1094  } else {
1095  avio_wb16(pb, 16);
1096  }
1097  avio_wb16(pb, 0);
1098  }
1099 
1100  avio_wb16(pb, 0); /* packet size (= 0) */
1101  if (track->par->codec_id == AV_CODEC_ID_OPUS)
1102  avio_wb16(pb, 48000);
1103  else
1104  avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1105  track->par->sample_rate : 0);
1106  avio_wb16(pb, 0); /* Reserved */
1107  }
1108 
1109  if (version == 1) { /* SoundDescription V1 extended info */
1110  if (mov_pcm_le_gt16(track->par->codec_id) ||
1111  mov_pcm_be_gt16(track->par->codec_id))
1112  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1113  else
1114  avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1115  avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1116  avio_wb32(pb, track->sample_size); /* Bytes per frame */
1117  avio_wb32(pb, 2); /* Bytes per sample */
1118  }
1119 
1120  if (track->mode == MODE_MOV &&
1121  (track->par->codec_id == AV_CODEC_ID_AAC ||
1122  track->par->codec_id == AV_CODEC_ID_AC3 ||
1123  track->par->codec_id == AV_CODEC_ID_EAC3 ||
1124  track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1125  track->par->codec_id == AV_CODEC_ID_ALAC ||
1126  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1127  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1128  track->par->codec_id == AV_CODEC_ID_QDM2 ||
1129  (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1130  (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1131  ret = mov_write_wave_tag(s, pb, track);
1132  else if (track->tag == MKTAG('m','p','4','a'))
1133  ret = mov_write_esds_tag(pb, track);
1134  else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1135  ret = mov_write_amr_tag(pb, track);
1136  else if (track->par->codec_id == AV_CODEC_ID_AC3)
1137  ret = mov_write_ac3_tag(s, pb, track);
1138  else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1139  ret = mov_write_eac3_tag(s, pb, track);
1140  else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1141  ret = mov_write_extradata_tag(pb, track);
1142  else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1143  ret = mov_write_wfex_tag(s, pb, track);
1144  else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1145  ret = mov_write_dfla_tag(pb, track);
1146  else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1147  ret = mov_write_dops_tag(s, pb, track);
1148  else if (track->vos_len > 0)
1149  ret = mov_write_glbl_tag(pb, track);
1150 
1151  if (ret < 0)
1152  return ret;
1153 
1154  if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1155  && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1156  return ret;
1157  }
1158 
1159  if (mov->encryption_scheme != MOV_ENC_NONE
1160  && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1161  return ret;
1162  }
1163 
1164  ret = update_size(pb, pos);
1165  return ret;
1166 }
1167 
1168 static int mov_write_d263_tag(AVIOContext *pb)
1169 {
1170  avio_wb32(pb, 0xf); /* size */
1171  ffio_wfourcc(pb, "d263");
1172  ffio_wfourcc(pb, "FFMP");
1173  avio_w8(pb, 0); /* decoder version */
1174  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1175  avio_w8(pb, 0xa); /* level */
1176  avio_w8(pb, 0); /* profile */
1177  return 0xf;
1178 }
1179 
1180 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1181 {
1182  int64_t pos = avio_tell(pb);
1183 
1184  avio_wb32(pb, 0);
1185  ffio_wfourcc(pb, "av1C");
1186  ff_isom_write_av1c(pb, track->vos_data, track->vos_len);
1187  return update_size(pb, pos);
1188 }
1189 
1190 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1191 {
1192  int64_t pos = avio_tell(pb);
1193 
1194  avio_wb32(pb, 0);
1195  ffio_wfourcc(pb, "avcC");
1196  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1197  return update_size(pb, pos);
1198 }
1199 
1200 static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1201 {
1202  int64_t pos = avio_tell(pb);
1203 
1204  avio_wb32(pb, 0);
1205  ffio_wfourcc(pb, "vpcC");
1206  avio_w8(pb, 1); /* version */
1207  avio_wb24(pb, 0); /* flags */
1208  ff_isom_write_vpcc(s, pb, track->par);
1209  return update_size(pb, pos);
1210 }
1211 
1212 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1213 {
1214  int64_t pos = avio_tell(pb);
1215 
1216  avio_wb32(pb, 0);
1217  ffio_wfourcc(pb, "hvcC");
1218  if (track->tag == MKTAG('h','v','c','1'))
1219  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1220  else
1221  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1222  return update_size(pb, pos);
1223 }
1224 
1225 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1226 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1227 {
1228  int i;
1229  int interlaced;
1230  int cid;
1231  int display_width = track->par->width;
1232 
1233  if (track->vos_data && track->vos_len > 0x29) {
1234  if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1235  /* looks like a DNxHD bit stream */
1236  interlaced = (track->vos_data[5] & 2);
1237  cid = AV_RB32(track->vos_data + 0x28);
1238  } else {
1239  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1240  return 0;
1241  }
1242  } else {
1243  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1244  return 0;
1245  }
1246 
1247  avio_wb32(pb, 24); /* size */
1248  ffio_wfourcc(pb, "ACLR");
1249  ffio_wfourcc(pb, "ACLR");
1250  ffio_wfourcc(pb, "0001");
1251  if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1252  track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1253  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1254  } else { /* Full range (0-255) */
1255  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1256  }
1257  avio_wb32(pb, 0); /* unknown */
1258 
1259  if (track->tag == MKTAG('A','V','d','h')) {
1260  avio_wb32(pb, 32);
1261  ffio_wfourcc(pb, "ADHR");
1262  ffio_wfourcc(pb, "0001");
1263  avio_wb32(pb, cid);
1264  avio_wb32(pb, 0); /* unknown */
1265  avio_wb32(pb, 1); /* unknown */
1266  avio_wb32(pb, 0); /* unknown */
1267  avio_wb32(pb, 0); /* unknown */
1268  return 0;
1269  }
1270 
1271  avio_wb32(pb, 24); /* size */
1272  ffio_wfourcc(pb, "APRG");
1273  ffio_wfourcc(pb, "APRG");
1274  ffio_wfourcc(pb, "0001");
1275  avio_wb32(pb, 1); /* unknown */
1276  avio_wb32(pb, 0); /* unknown */
1277 
1278  avio_wb32(pb, 120); /* size */
1279  ffio_wfourcc(pb, "ARES");
1280  ffio_wfourcc(pb, "ARES");
1281  ffio_wfourcc(pb, "0001");
1282  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1283  if ( track->par->sample_aspect_ratio.num > 0
1284  && track->par->sample_aspect_ratio.den > 0)
1285  display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1286  avio_wb32(pb, display_width);
1287  /* values below are based on samples created with quicktime and avid codecs */
1288  if (interlaced) {
1289  avio_wb32(pb, track->par->height / 2);
1290  avio_wb32(pb, 2); /* unknown */
1291  avio_wb32(pb, 0); /* unknown */
1292  avio_wb32(pb, 4); /* unknown */
1293  } else {
1294  avio_wb32(pb, track->par->height);
1295  avio_wb32(pb, 1); /* unknown */
1296  avio_wb32(pb, 0); /* unknown */
1297  if (track->par->height == 1080)
1298  avio_wb32(pb, 5); /* unknown */
1299  else
1300  avio_wb32(pb, 6); /* unknown */
1301  }
1302  /* padding */
1303  for (i = 0; i < 10; i++)
1304  avio_wb64(pb, 0);
1305 
1306  return 0;
1307 }
1308 
1309 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1310 {
1311  avio_wb32(pb, 12);
1312  ffio_wfourcc(pb, "DpxE");
1313  if (track->par->extradata_size >= 12 &&
1314  !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1315  avio_wb32(pb, track->par->extradata[11]);
1316  } else {
1317  avio_wb32(pb, 1);
1318  }
1319  return 0;
1320 }
1321 
1322 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1323 {
1324  int tag;
1325 
1326  if (track->par->width == 720) { /* SD */
1327  if (track->par->height == 480) { /* NTSC */
1328  if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1329  else tag = MKTAG('d','v','c',' ');
1330  }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1331  else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1332  else tag = MKTAG('d','v','p','p');
1333  } else if (track->par->height == 720) { /* HD 720 line */
1334  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1335  else tag = MKTAG('d','v','h','p');
1336  } else if (track->par->height == 1080) { /* HD 1080 line */
1337  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1338  else tag = MKTAG('d','v','h','6');
1339  } else {
1340  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1341  return 0;
1342  }
1343 
1344  return tag;
1345 }
1346 
1347 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1348 {
1349  AVRational rate = st->avg_frame_rate;
1350 
1351 #if FF_API_LAVF_AVCTX
1352  FF_DISABLE_DEPRECATION_WARNINGS
1353  rate = av_inv_q(st->codec->time_base);
1354  if (av_timecode_check_frame_rate(rate) < 0) {
1355  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1356  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1357  rate = st->avg_frame_rate;
1358  }
1359  FF_ENABLE_DEPRECATION_WARNINGS
1360 #endif
1361 
1362  return rate;
1363 }
1364 
1365 static int defined_frame_rate(AVFormatContext *s, AVStream *st)
1366 {
1367  AVRational rational_framerate = find_fps(s, st);
1368  int rate = 0;
1369  if (rational_framerate.den != 0)
1370  rate = av_q2d(rational_framerate);
1371  return rate;
1372 }
1373 
1374 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1375 {
1376  int tag = track->par->codec_tag;
1377  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1378  AVStream *st = track->st;
1379  int rate = defined_frame_rate(s, st);
1380 
1381  if (!tag)
1382  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1383 
1384  if (track->par->format == AV_PIX_FMT_YUV420P) {
1385  if (track->par->width == 1280 && track->par->height == 720) {
1386  if (!interlaced) {
1387  if (rate == 24) tag = MKTAG('x','d','v','4');
1388  else if (rate == 25) tag = MKTAG('x','d','v','5');
1389  else if (rate == 30) tag = MKTAG('x','d','v','1');
1390  else if (rate == 50) tag = MKTAG('x','d','v','a');
1391  else if (rate == 60) tag = MKTAG('x','d','v','9');
1392  }
1393  } else if (track->par->width == 1440 && track->par->height == 1080) {
1394  if (!interlaced) {
1395  if (rate == 24) tag = MKTAG('x','d','v','6');
1396  else if (rate == 25) tag = MKTAG('x','d','v','7');
1397  else if (rate == 30) tag = MKTAG('x','d','v','8');
1398  } else {
1399  if (rate == 25) tag = MKTAG('x','d','v','3');
1400  else if (rate == 30) tag = MKTAG('x','d','v','2');
1401  }
1402  } else if (track->par->width == 1920 && track->par->height == 1080) {
1403  if (!interlaced) {
1404  if (rate == 24) tag = MKTAG('x','d','v','d');
1405  else if (rate == 25) tag = MKTAG('x','d','v','e');
1406  else if (rate == 30) tag = MKTAG('x','d','v','f');
1407  } else {
1408  if (rate == 25) tag = MKTAG('x','d','v','c');
1409  else if (rate == 30) tag = MKTAG('x','d','v','b');
1410  }
1411  }
1412  } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1413  if (track->par->width == 1280 && track->par->height == 720) {
1414  if (!interlaced) {
1415  if (rate == 24) tag = MKTAG('x','d','5','4');
1416  else if (rate == 25) tag = MKTAG('x','d','5','5');
1417  else if (rate == 30) tag = MKTAG('x','d','5','1');
1418  else if (rate == 50) tag = MKTAG('x','d','5','a');
1419  else if (rate == 60) tag = MKTAG('x','d','5','9');
1420  }
1421  } else if (track->par->width == 1920 && track->par->height == 1080) {
1422  if (!interlaced) {
1423  if (rate == 24) tag = MKTAG('x','d','5','d');
1424  else if (rate == 25) tag = MKTAG('x','d','5','e');
1425  else if (rate == 30) tag = MKTAG('x','d','5','f');
1426  } else {
1427  if (rate == 25) tag = MKTAG('x','d','5','c');
1428  else if (rate == 30) tag = MKTAG('x','d','5','b');
1429  }
1430  }
1431  }
1432 
1433  return tag;
1434 }
1435 
1436 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1437 {
1438  int tag = track->par->codec_tag;
1439  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1440  AVStream *st = track->st;
1441  int rate = defined_frame_rate(s, st);
1442 
1443  if (!tag)
1444  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1445 
1446  if (track->par->format == AV_PIX_FMT_YUV420P10) {
1447  if (track->par->width == 960 && track->par->height == 720) {
1448  if (!interlaced) {
1449  if (rate == 24) tag = MKTAG('a','i','5','p');
1450  else if (rate == 25) tag = MKTAG('a','i','5','q');
1451  else if (rate == 30) tag = MKTAG('a','i','5','p');
1452  else if (rate == 50) tag = MKTAG('a','i','5','q');
1453  else if (rate == 60) tag = MKTAG('a','i','5','p');
1454  }
1455  } else if (track->par->width == 1440 && track->par->height == 1080) {
1456  if (!interlaced) {
1457  if (rate == 24) tag = MKTAG('a','i','5','3');
1458  else if (rate == 25) tag = MKTAG('a','i','5','2');
1459  else if (rate == 30) tag = MKTAG('a','i','5','3');
1460  } else {
1461  if (rate == 50) tag = MKTAG('a','i','5','5');
1462  else if (rate == 60) tag = MKTAG('a','i','5','6');
1463  }
1464  }
1465  } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1466  if (track->par->width == 1280 && track->par->height == 720) {
1467  if (!interlaced) {
1468  if (rate == 24) tag = MKTAG('a','i','1','p');
1469  else if (rate == 25) tag = MKTAG('a','i','1','q');
1470  else if (rate == 30) tag = MKTAG('a','i','1','p');
1471  else if (rate == 50) tag = MKTAG('a','i','1','q');
1472  else if (rate == 60) tag = MKTAG('a','i','1','p');
1473  }
1474  } else if (track->par->width == 1920 && track->par->height == 1080) {
1475  if (!interlaced) {
1476  if (rate == 24) tag = MKTAG('a','i','1','3');
1477  else if (rate == 25) tag = MKTAG('a','i','1','2');
1478  else if (rate == 30) tag = MKTAG('a','i','1','3');
1479  } else {
1480  if (rate == 25) tag = MKTAG('a','i','1','5');
1481  else if (rate == 50) tag = MKTAG('a','i','1','5');
1482  else if (rate == 60) tag = MKTAG('a','i','1','6');
1483  }
1484  } else if ( track->par->width == 4096 && track->par->height == 2160
1485  || track->par->width == 3840 && track->par->height == 2160
1486  || track->par->width == 2048 && track->par->height == 1080) {
1487  tag = MKTAG('a','i','v','x');
1488  }
1489  }
1490 
1491  return tag;
1492 }
1493 
1494 static const struct {
1495  enum AVPixelFormat pix_fmt;
1496  uint32_t tag;
1497  unsigned bps;
1498 } mov_pix_fmt_tags[] = {
1499  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1500  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1501  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1502  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1503  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1504  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1505  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1506  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1507  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1508  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1509  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1510  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1511  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1512  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1513  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1514 };
1515 
1516 static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
1517 {
1518  int tag = MKTAG('A','V','d','n');
1519  if (track->par->profile != FF_PROFILE_UNKNOWN &&
1520  track->par->profile != FF_PROFILE_DNXHD)
1521  tag = MKTAG('A','V','d','h');
1522  return tag;
1523 }
1524 
1525 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1526 {
1527  int tag = track->par->codec_tag;
1528  int i;
1529  enum AVPixelFormat pix_fmt;
1530 
1531  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1532  if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1533  tag = mov_pix_fmt_tags[i].tag;
1534  track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1535  if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1536  break;
1537  }
1538  }
1539 
1540  pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1541  track->par->bits_per_coded_sample);
1542  if (tag == MKTAG('r','a','w',' ') &&
1543  track->par->format != pix_fmt &&
1544  track->par->format != AV_PIX_FMT_GRAY8 &&
1545  track->par->format != AV_PIX_FMT_NONE)
1546  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1547  av_get_pix_fmt_name(track->par->format));
1548  return tag;
1549 }
1550 
1551 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1552 {
1553  unsigned int tag = track->par->codec_tag;
1554 
1555  // "rtp " is used to distinguish internally created RTP-hint tracks
1556  // (with rtp_ctx) from other tracks.
1557  if (tag == MKTAG('r','t','p',' '))
1558  tag = 0;
1559  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1560  (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1561  track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1562  track->par->codec_id == AV_CODEC_ID_H263 ||
1563  track->par->codec_id == AV_CODEC_ID_H264 ||
1564  track->par->codec_id == AV_CODEC_ID_DNXHD ||
1565  track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1566  av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1567  if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1568  tag = mov_get_dv_codec_tag(s, track);
1569  else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1570  tag = mov_get_rawvideo_codec_tag(s, track);
1571  else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1572  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1573  else if (track->par->codec_id == AV_CODEC_ID_H264)
1574  tag = mov_get_h264_codec_tag(s, track);
1575  else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1576  tag = mov_get_dnxhd_codec_tag(s, track);
1577  else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1578  tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1579  if (!tag) { // if no mac fcc found, try with Microsoft tags
1580  tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1581  if (tag)
1582  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1583  "the file may be unplayable!\n");
1584  }
1585  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1586  tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1587  if (!tag) { // if no mac fcc found, try with Microsoft tags
1588  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1589  if (ms_tag) {
1590  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1591  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1592  "the file may be unplayable!\n");
1593  }
1594  }
1595  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1596  tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1597  }
1598 
1599  return tag;
1600 }
1601 
1602 static const AVCodecTag codec_cover_image_tags[] = {
1603  { AV_CODEC_ID_MJPEG, 0xD },
1604  { AV_CODEC_ID_PNG, 0xE },
1605  { AV_CODEC_ID_BMP, 0x1B },
1606  { AV_CODEC_ID_NONE, 0 },
1607 };
1608 
1609 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1610  unsigned int tag, int codec_id)
1611 {
1612  int i;
1613 
1614  /**
1615  * Check that tag + id is in the table
1616  */
1617  for (i = 0; tags && tags[i]; i++) {
1618  const AVCodecTag *codec_tags = tags[i];
1619  while (codec_tags->id != AV_CODEC_ID_NONE) {
1620  if (avpriv_toupper4(codec_tags->tag) == avpriv_toupper4(tag) &&
1621  codec_tags->id == codec_id)
1622  return codec_tags->tag;
1623  codec_tags++;
1624  }
1625  }
1626  return 0;
1627 }
1628 
1629 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1630 {
1631  if (is_cover_image(track->st))
1632  return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id);
1633 
1634  if (track->mode == MODE_IPOD)
1635  if (!av_match_ext(s->url, "m4a") &&
1636  !av_match_ext(s->url, "m4v") &&
1637  !av_match_ext(s->url, "m4b"))
1638  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1639  "Quicktime/Ipod might not play the file\n");
1640 
1641  if (track->mode == MODE_MOV) {
1642  return mov_get_codec_tag(s, track);
1643  } else
1644  return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1645  track->par->codec_id);
1646 }
1647 
1648 /** Write uuid atom.
1649  * Needed to make file play in iPods running newest firmware
1650  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1651  */
1652 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1653 {
1654  avio_wb32(pb, 28);
1655  ffio_wfourcc(pb, "uuid");
1656  avio_wb32(pb, 0x6b6840f2);
1657  avio_wb32(pb, 0x5f244fc5);
1658  avio_wb32(pb, 0xba39a51b);
1659  avio_wb32(pb, 0xcf0323f3);
1660  avio_wb32(pb, 0x0);
1661  return 28;
1662 }
1663 
1664 static const uint16_t fiel_data[] = {
1665  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1666 };
1667 
1668 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1669 {
1670  unsigned mov_field_order = 0;
1671  if (field_order < FF_ARRAY_ELEMS(fiel_data))
1672  mov_field_order = fiel_data[field_order];
1673  else
1674  return 0;
1675  avio_wb32(pb, 10);
1676  ffio_wfourcc(pb, "fiel");
1677  avio_wb16(pb, mov_field_order);
1678  return 10;
1679 }
1680 
1681 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1682 {
1683  int64_t pos = avio_tell(pb);
1684  avio_wb32(pb, 0); /* size */
1685  avio_wl32(pb, track->tag); // store it byteswapped
1686  avio_wb32(pb, 0); /* Reserved */
1687  avio_wb16(pb, 0); /* Reserved */
1688  avio_wb16(pb, 1); /* Data-reference index */
1689 
1690  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1691  mov_write_esds_tag(pb, track);
1692  else if (track->par->extradata_size)
1693  avio_write(pb, track->par->extradata, track->par->extradata_size);
1694 
1695  return update_size(pb, pos);
1696 }
1697 
1698 static int mov_write_st3d_tag(AVFormatContext *s, AVIOContext *pb, AVStereo3D *stereo_3d)
1699 {
1700  int8_t stereo_mode;
1701 
1702  if (stereo_3d->flags != 0) {
1703  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1704  return 0;
1705  }
1706 
1707  switch (stereo_3d->type) {
1708  case AV_STEREO3D_2D:
1709  stereo_mode = 0;
1710  break;
1711  case AV_STEREO3D_TOPBOTTOM:
1712  stereo_mode = 1;
1713  break;
1714  case AV_STEREO3D_SIDEBYSIDE:
1715  stereo_mode = 2;
1716  break;
1717  default:
1718  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1719  return 0;
1720  }
1721  avio_wb32(pb, 13); /* size */
1722  ffio_wfourcc(pb, "st3d");
1723  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1724  avio_w8(pb, stereo_mode);
1725  return 13;
1726 }
1727 
1728 static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
1729 {
1730  int64_t sv3d_pos, svhd_pos, proj_pos;
1731  const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1732 
1733  if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1734  spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1735  spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1736  av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1737  return 0;
1738  }
1739 
1740  sv3d_pos = avio_tell(pb);
1741  avio_wb32(pb, 0); /* size */
1742  ffio_wfourcc(pb, "sv3d");
1743 
1744  svhd_pos = avio_tell(pb);
1745  avio_wb32(pb, 0); /* size */
1746  ffio_wfourcc(pb, "svhd");
1747  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1748  avio_put_str(pb, metadata_source);
1749  update_size(pb, svhd_pos);
1750 
1751  proj_pos = avio_tell(pb);
1752  avio_wb32(pb, 0); /* size */
1753  ffio_wfourcc(pb, "proj");
1754 
1755  avio_wb32(pb, 24); /* size */
1756  ffio_wfourcc(pb, "prhd");
1757  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1758  avio_wb32(pb, spherical_mapping->yaw);
1759  avio_wb32(pb, spherical_mapping->pitch);
1760  avio_wb32(pb, spherical_mapping->roll);
1761 
1762  switch (spherical_mapping->projection) {
1763  case AV_SPHERICAL_EQUIRECTANGULAR:
1764  case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
1765  avio_wb32(pb, 28); /* size */
1766  ffio_wfourcc(pb, "equi");
1767  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1768  avio_wb32(pb, spherical_mapping->bound_top);
1769  avio_wb32(pb, spherical_mapping->bound_bottom);
1770  avio_wb32(pb, spherical_mapping->bound_left);
1771  avio_wb32(pb, spherical_mapping->bound_right);
1772  break;
1773  case AV_SPHERICAL_CUBEMAP:
1774  avio_wb32(pb, 20); /* size */
1775  ffio_wfourcc(pb, "cbmp");
1776  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1777  avio_wb32(pb, 0); /* layout */
1778  avio_wb32(pb, spherical_mapping->padding); /* padding */
1779  break;
1780  }
1781  update_size(pb, proj_pos);
1782 
1783  return update_size(pb, sv3d_pos);
1784 }
1785 
1786 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
1787 {
1788  avio_wb32(pb, 40);
1789  ffio_wfourcc(pb, "clap");
1790  avio_wb32(pb, track->par->width); /* apertureWidth_N */
1791  avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
1792  avio_wb32(pb, track->height); /* apertureHeight_N */
1793  avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
1794  avio_wb32(pb, 0); /* horizOff_N (= 0) */
1795  avio_wb32(pb, 1); /* horizOff_D (= 1) */
1796  avio_wb32(pb, 0); /* vertOff_N (= 0) */
1797  avio_wb32(pb, 1); /* vertOff_D (= 1) */
1798  return 40;
1799 }
1800 
1801 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1802 {
1803  AVRational sar;
1804  av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1805  track->par->sample_aspect_ratio.den, INT_MAX);
1806 
1807  avio_wb32(pb, 16);
1808  ffio_wfourcc(pb, "pasp");
1809  avio_wb32(pb, sar.num);
1810  avio_wb32(pb, sar.den);
1811  return 16;
1812 }
1813 
1814 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
1815 {
1816  uint32_t gama = 0;
1817  if (gamma <= 0.0) {
1818  gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1819  }
1820  av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1821 
1822  if (gamma > 1e-6) {
1823  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1824  av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1825 
1826  av_assert0(track->mode == MODE_MOV);
1827  avio_wb32(pb, 12);
1828  ffio_wfourcc(pb, "gama");
1829  avio_wb32(pb, gama);
1830  return 12;
1831  } else {
1832  av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1833  }
1834  return 0;
1835 }
1836 
1837 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1838 {
1839  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1840  // Ref (MP4): ISO/IEC 14496-12:2012
1841 
1842  if (track->par->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1843  track->par->color_trc == AVCOL_TRC_UNSPECIFIED &&
1844  track->par->color_space == AVCOL_SPC_UNSPECIFIED) {
1845  if ((track->par->width >= 1920 && track->par->height >= 1080)
1846  || (track->par->width == 1280 && track->par->height == 720)) {
1847  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1848  track->par->color_primaries = AVCOL_PRI_BT709;
1849  } else if (track->par->width == 720 && track->height == 576) {
1850  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1851  track->par->color_primaries = AVCOL_PRI_BT470BG;
1852  } else if (track->par->width == 720 &&
1853  (track->height == 486 || track->height == 480)) {
1854  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1855  track->par->color_primaries = AVCOL_PRI_SMPTE170M;
1856  } else {
1857  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1858  }
1859  switch (track->par->color_primaries) {
1860  case AVCOL_PRI_BT709:
1861  track->par->color_trc = AVCOL_TRC_BT709;
1862  track->par->color_space = AVCOL_SPC_BT709;
1863  break;
1864  case AVCOL_PRI_SMPTE170M:
1865  case AVCOL_PRI_BT470BG:
1866  track->par->color_trc = AVCOL_TRC_BT709;
1867  track->par->color_space = AVCOL_SPC_SMPTE170M;
1868  break;
1869  }
1870  }
1871 
1872  /* We should only ever be called by MOV or MP4. */
1873  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1874 
1875  avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1876  ffio_wfourcc(pb, "colr");
1877  if (track->mode == MODE_MP4)
1878  ffio_wfourcc(pb, "nclx");
1879  else
1880  ffio_wfourcc(pb, "nclc");
1881  switch (track->par->color_primaries) {
1882  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1883  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1884  case AVCOL_PRI_SMPTE170M:
1885  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1886  case AVCOL_PRI_BT2020: avio_wb16(pb, 9); break;
1887  case AVCOL_PRI_SMPTE431: avio_wb16(pb, 11); break;
1888  case AVCOL_PRI_SMPTE432: avio_wb16(pb, 12); break;
1889  default: avio_wb16(pb, 2);
1890  }
1891  switch (track->par->color_trc) {
1892  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1893  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1894  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1895  case AVCOL_TRC_SMPTEST2084: avio_wb16(pb, 16); break;
1896  case AVCOL_TRC_SMPTE428: avio_wb16(pb, 17); break;
1897  case AVCOL_TRC_ARIB_STD_B67: avio_wb16(pb, 18); break;
1898  default: avio_wb16(pb, 2);
1899  }
1900  switch (track->par->color_space) {
1901  case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1902  case AVCOL_SPC_BT470BG:
1903  case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1904  case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1905  case AVCOL_SPC_BT2020_NCL: avio_wb16(pb, 9); break;
1906  default: avio_wb16(pb, 2);
1907  }
1908 
1909  if (track->mode == MODE_MP4) {
1910  int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
1911  avio_w8(pb, full_range << 7);
1912  return 19;
1913  } else {
1914  return 18;
1915  }
1916 }
1917 
1918 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1919 {
1920  AVDictionaryEntry *encoder;
1921  int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
1922  || (track->par->width == 1440 && track->par->height == 1080)
1923  || (track->par->width == 1920 && track->par->height == 1080);
1924 
1925  if (track->mode == MODE_MOV &&
1926  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1927  av_strlcpy(compressor_name, encoder->value, 32);
1928  } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1929  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1930  AVStream *st = track->st;
1931  int rate = defined_frame_rate(NULL, st);
1932  av_strlcatf(compressor_name, len, "XDCAM");
1933  if (track->par->format == AV_PIX_FMT_YUV422P) {
1934  av_strlcatf(compressor_name, len, " HD422");
1935  } else if(track->par->width == 1440) {
1936  av_strlcatf(compressor_name, len, " HD");
1937  } else
1938  av_strlcatf(compressor_name, len, " EX");
1939 
1940  av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
1941 
1942  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1943  }
1944 }
1945 
1946 static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1947 {
1948  int64_t pos = avio_tell(pb);
1949  char compressor_name[32] = { 0 };
1950  int avid = 0;
1951 
1952  int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
1953  || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
1954  || track->par->codec_id == AV_CODEC_ID_V308
1955  || track->par->codec_id == AV_CODEC_ID_V408
1956  || track->par->codec_id == AV_CODEC_ID_V410
1957  || track->par->codec_id == AV_CODEC_ID_V210);
1958 
1959  avio_wb32(pb, 0); /* size */
1960  if (mov->encryption_scheme != MOV_ENC_NONE) {
1961  ffio_wfourcc(pb, "encv");
1962  } else {
1963  avio_wl32(pb, track->tag); // store it byteswapped
1964  }
1965  avio_wb32(pb, 0); /* Reserved */
1966  avio_wb16(pb, 0); /* Reserved */
1967  avio_wb16(pb, 1); /* Data-reference index */
1968 
1969  if (uncompressed_ycbcr) {
1970  avio_wb16(pb, 2); /* Codec stream version */
1971  } else {
1972  avio_wb16(pb, 0); /* Codec stream version */
1973  }
1974  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1975  if (track->mode == MODE_MOV) {
1976  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1977  if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
1978  avio_wb32(pb, 0); /* Temporal Quality */
1979  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1980  } else {
1981  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1982  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1983  }
1984  } else {
1985  avio_wb32(pb, 0); /* Reserved */
1986  avio_wb32(pb, 0); /* Reserved */
1987  avio_wb32(pb, 0); /* Reserved */
1988  }
1989  avio_wb16(pb, track->par->width); /* Video width */
1990  avio_wb16(pb, track->height); /* Video height */
1991  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1992  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1993  avio_wb32(pb, 0); /* Data size (= 0) */
1994  avio_wb16(pb, 1); /* Frame count (= 1) */
1995 
1996  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1997  find_compressor(compressor_name, 32, track);
1998  avio_w8(pb, strlen(compressor_name));
1999  avio_write(pb, compressor_name, 31);
2000 
2001  if (track->mode == MODE_MOV &&
2002  (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
2003  avio_wb16(pb, 0x18);
2004  else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2005  avio_wb16(pb, track->par->bits_per_coded_sample |
2006  (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2007  else
2008  avio_wb16(pb, 0x18); /* Reserved */
2009 
2010  if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2011  int pal_size, i;
2012  avio_wb16(pb, 0); /* Color table ID */
2013  avio_wb32(pb, 0); /* Color table seed */
2014  avio_wb16(pb, 0x8000); /* Color table flags */
2015  if (track->par->bits_per_coded_sample < 0 || track->par->bits_per_coded_sample > 8)
2016  return AVERROR(EINVAL);
2017  pal_size = 1 << track->par->bits_per_coded_sample;
2018  avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2019  for (i = 0; i < pal_size; i++) {
2020  uint32_t rgb = track->palette[i];
2021  uint16_t r = (rgb >> 16) & 0xff;
2022  uint16_t g = (rgb >> 8) & 0xff;
2023  uint16_t b = rgb & 0xff;
2024  avio_wb16(pb, 0);
2025  avio_wb16(pb, (r << 8) | r);
2026  avio_wb16(pb, (g << 8) | g);
2027  avio_wb16(pb, (b << 8) | b);
2028  }
2029  } else
2030  avio_wb16(pb, 0xffff); /* Reserved */
2031 
2032  if (track->tag == MKTAG('m','p','4','v'))
2033  mov_write_esds_tag(pb, track);
2034  else if (track->par->codec_id == AV_CODEC_ID_H263)
2035  mov_write_d263_tag(pb);
2036  else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2037  track->par->codec_id == AV_CODEC_ID_SVQ3) {
2038  mov_write_extradata_tag(pb, track);
2039  avio_wb32(pb, 0);
2040  } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2041  mov_write_avid_tag(pb, track);
2042  avid = 1;
2043  } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2044  mov_write_hvcc_tag(pb, track);
2045  else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2046  mov_write_avcc_tag(pb, track);
2047  if (track->mode == MODE_IPOD)
2048  mov_write_uuid_tag_ipod(pb);
2049  } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2050  mov_write_vpcc_tag(mov->fc, pb, track);
2051  } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2052  mov_write_av1c_tag(pb, track);
2053  } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2054  mov_write_dvc1_tag(pb, track);
2055  else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2056  track->par->codec_id == AV_CODEC_ID_VP6A) {
2057  /* Don't write any potential extradata here - the cropping
2058  * is signalled via the normal width/height fields. */
2059  } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2060  if (track->par->codec_tag == MKTAG('R','1','0','k'))
2061  mov_write_dpxe_tag(pb, track);
2062  } else if (track->vos_len > 0)
2063  mov_write_glbl_tag(pb, track);
2064 
2065  if (track->par->codec_id != AV_CODEC_ID_H264 &&
2066  track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2067  track->par->codec_id != AV_CODEC_ID_DNXHD) {
2068  int field_order = track->par->field_order;
2069 
2070 #if FF_API_LAVF_AVCTX
2071  FF_DISABLE_DEPRECATION_WARNINGS
2072  if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
2073  field_order = track->st->codec->field_order;
2074  FF_ENABLE_DEPRECATION_WARNINGS
2075 #endif
2076 
2077  if (field_order != AV_FIELD_UNKNOWN)
2078  mov_write_fiel_tag(pb, track, field_order);
2079  }
2080 
2081  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2082  if (track->mode == MODE_MOV)
2083  mov_write_gama_tag(s, pb, track, mov->gamma);
2084  else
2085  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2086  }
2087  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2088  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
2089  mov_write_colr_tag(pb, track);
2090  else
2091  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
2092  }
2093 
2094  if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2095  AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
2096  AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
2097 
2098  if (stereo_3d)
2099  mov_write_st3d_tag(s, pb, stereo_3d);
2100  if (spherical_mapping)
2101  mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
2102  }
2103 
2104  if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2105  mov_write_pasp_tag(pb, track);
2106  }
2107 
2108  if (uncompressed_ycbcr){
2109  mov_write_clap_tag(pb, track);
2110  }
2111 
2112  if (mov->encryption_scheme != MOV_ENC_NONE) {
2113  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2114  }
2115 
2116  /* extra padding for avid stsd */
2117  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2118  if (avid)
2119  avio_wb32(pb, 0);
2120 
2121  return update_size(pb, pos);
2122 }
2123 
2124 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2125 {
2126  int64_t pos = avio_tell(pb);
2127  avio_wb32(pb, 0); /* size */
2128  ffio_wfourcc(pb, "rtp ");
2129  avio_wb32(pb, 0); /* Reserved */
2130  avio_wb16(pb, 0); /* Reserved */
2131  avio_wb16(pb, 1); /* Data-reference index */
2132 
2133  avio_wb16(pb, 1); /* Hint track version */
2134  avio_wb16(pb, 1); /* Highest compatible version */
2135  avio_wb32(pb, track->max_packet_size); /* Max packet size */
2136 
2137  avio_wb32(pb, 12); /* size */
2138  ffio_wfourcc(pb, "tims");
2139  avio_wb32(pb, track->timescale);
2140 
2141  return update_size(pb, pos);
2142 }
2143 
2144 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2145 {
2146  uint64_t str_size =strlen(reel_name);
2147  int64_t pos = avio_tell(pb);
2148 
2149  if (str_size >= UINT16_MAX){
2150  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2151  avio_wb16(pb, 0);
2152  return AVERROR(EINVAL);
2153  }
2154 
2155  avio_wb32(pb, 0); /* size */
2156  ffio_wfourcc(pb, "name"); /* Data format */
2157  avio_wb16(pb, str_size); /* string size */
2158  avio_wb16(pb, track->language); /* langcode */
2159  avio_write(pb, reel_name, str_size); /* reel name */
2160  return update_size(pb,pos);
2161 }
2162 
2163 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2164 {
2165  int64_t pos = avio_tell(pb);
2166 #if 1
2167  int frame_duration;
2168  int nb_frames;
2169  AVDictionaryEntry *t = NULL;
2170 
2171  if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2172 #if FF_API_LAVF_AVCTX
2173  FF_DISABLE_DEPRECATION_WARNINGS
2174  frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
2175  nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
2176  FF_ENABLE_DEPRECATION_WARNINGS
2177 #else
2178  av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2179  return AVERROR(EINVAL);
2180 #endif
2181  } else {
2182  frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2183  nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2184  }
2185 
2186  if (nb_frames > 255) {
2187  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2188  return AVERROR(EINVAL);
2189  }
2190 
2191  avio_wb32(pb, 0); /* size */
2192  ffio_wfourcc(pb, "tmcd"); /* Data format */
2193  avio_wb32(pb, 0); /* Reserved */
2194  avio_wb32(pb, 1); /* Data reference index */
2195  avio_wb32(pb, 0); /* Flags */
2196  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2197  avio_wb32(pb, track->timescale); /* Timescale */
2198  avio_wb32(pb, frame_duration); /* Frame duration */
2199  avio_w8(pb, nb_frames); /* Number of frames */
2200  avio_w8(pb, 0); /* Reserved */
2201 
2202  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2203  if (t && utf8len(t->value) && track->mode != MODE_MP4)
2204  mov_write_source_reference_tag(pb, track, t->value);
2205  else
2206  avio_wb16(pb, 0); /* zero size */
2207 #else
2208 
2209  avio_wb32(pb, 0); /* size */
2210  ffio_wfourcc(pb, "tmcd"); /* Data format */
2211  avio_wb32(pb, 0); /* Reserved */
2212  avio_wb32(pb, 1); /* Data reference index */
2213  if (track->par->extradata_size)
2214  avio_write(pb, track->par->extradata, track->par->extradata_size);
2215 #endif
2216  return update_size(pb, pos);
2217 }
2218 
2219 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2220 {
2221  int64_t pos = avio_tell(pb);
2222  avio_wb32(pb, 0); /* size */
2223  ffio_wfourcc(pb, "gpmd");
2224  avio_wb32(pb, 0); /* Reserved */
2225  avio_wb16(pb, 0); /* Reserved */
2226  avio_wb16(pb, 1); /* Data-reference index */
2227  avio_wb32(pb, 0); /* Reserved */
2228  return update_size(pb, pos);
2229 }
2230 
2231 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2232 {
2233  int64_t pos = avio_tell(pb);
2234  int ret = 0;
2235  avio_wb32(pb, 0); /* size */
2236  ffio_wfourcc(pb, "stsd");
2237  avio_wb32(pb, 0); /* version & flags */
2238  avio_wb32(pb, 1); /* entry count */
2239  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2240  ret = mov_write_video_tag(s, pb, mov, track);
2241  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2242  ret = mov_write_audio_tag(s, pb, mov, track);
2243  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2244  ret = mov_write_subtitle_tag(pb, track);
2245  else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2246  ret = mov_write_rtp_tag(pb, track);
2247  else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2248  ret = mov_write_tmcd_tag(pb, track);
2249  else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2250  ret = mov_write_gpmd_tag(pb, track);
2251 
2252  if (ret < 0)
2253  return ret;
2254 
2255  return update_size(pb, pos);
2256 }
2257 
2258 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2259 {
2260  MOVMuxContext *mov = s->priv_data;
2261  MOVStts *ctts_entries;
2262  uint32_t entries = 0;
2263  uint32_t atom_size;
2264  int i;
2265 
2266  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2267  if (!ctts_entries)
2268  return AVERROR(ENOMEM);
2269  ctts_entries[0].count = 1;
2270  ctts_entries[0].duration = track->cluster[0].cts;
2271  for (i = 1; i < track->entry; i++) {
2272  if (track->cluster[i].cts == ctts_entries[entries].duration) {
2273  ctts_entries[entries].count++; /* compress */
2274  } else {
2275  entries++;
2276  ctts_entries[entries].duration = track->cluster[i].cts;
2277  ctts_entries[entries].count = 1;
2278  }
2279  }
2280  entries++; /* last one */
2281  atom_size = 16 + (entries * 8);
2282  avio_wb32(pb, atom_size); /* size */
2283  ffio_wfourcc(pb, "ctts");
2284  if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2285  avio_w8(pb, 1); /* version */
2286  else
2287  avio_w8(pb, 0); /* version */
2288  avio_wb24(pb, 0); /* flags */
2289  avio_wb32(pb, entries); /* entry count */
2290  for (i = 0; i < entries; i++) {
2291  avio_wb32(pb, ctts_entries[i].count);
2292  avio_wb32(pb, ctts_entries[i].duration);
2293  }
2294  av_free(ctts_entries);
2295  return atom_size;
2296 }
2297 
2298 /* Time to sample atom */
2299 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2300 {
2301  MOVStts *stts_entries = NULL;
2302  uint32_t entries = -1;
2303  uint32_t atom_size;
2304  int i;
2305 
2306  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2307  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2308  if (!stts_entries)
2309  return AVERROR(ENOMEM);
2310  stts_entries[0].count = track->sample_count;
2311  stts_entries[0].duration = 1;
2312  entries = 1;
2313  } else {
2314  if (track->entry) {
2315  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2316  if (!stts_entries)
2317  return AVERROR(ENOMEM);
2318  }
2319  for (i = 0; i < track->entry; i++) {
2320  int duration = get_cluster_duration(track, i);
2321  if (i && duration == stts_entries[entries].duration) {
2322  stts_entries[entries].count++; /* compress */
2323  } else {
2324  entries++;
2325  stts_entries[entries].duration = duration;
2326  stts_entries[entries].count = 1;
2327  }
2328  }
2329  entries++; /* last one */
2330  }
2331  atom_size = 16 + (entries * 8);
2332  avio_wb32(pb, atom_size); /* size */
2333  ffio_wfourcc(pb, "stts");
2334  avio_wb32(pb, 0); /* version & flags */
2335  avio_wb32(pb, entries); /* entry count */
2336  for (i = 0; i < entries; i++) {
2337  avio_wb32(pb, stts_entries[i].count);
2338  avio_wb32(pb, stts_entries[i].duration);
2339  }
2340  av_free(stts_entries);
2341  return atom_size;
2342 }
2343 
2344 static int mov_write_dref_tag(AVIOContext *pb)
2345 {
2346  avio_wb32(pb, 28); /* size */
2347  ffio_wfourcc(pb, "dref");
2348  avio_wb32(pb, 0); /* version & flags */
2349  avio_wb32(pb, 1); /* entry count */
2350 
2351  avio_wb32(pb, 0xc); /* size */
2352  //FIXME add the alis and rsrc atom
2353  ffio_wfourcc(pb, "url ");
2354  avio_wb32(pb, 1); /* version & flags */
2355 
2356  return 28;
2357 }
2358 
2359 static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
2360 {
2361  struct sgpd_entry {
2362  int count;
2363  int16_t roll_distance;
2364  int group_description_index;
2365  };
2366 
2367  struct sgpd_entry *sgpd_entries = NULL;
2368  int entries = -1;
2369  int group = 0;
2370  int i, j;
2371 
2372  const int OPUS_SEEK_PREROLL_MS = 80;
2373  int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2374  (AVRational){1, 1000},
2375  (AVRational){1, 48000});
2376 
2377  if (!track->entry)
2378  return 0;
2379 
2380  sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2381  if (!sgpd_entries)
2382  return AVERROR(ENOMEM);
2383 
2384  av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC);
2385 
2386  if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2387  for (i = 0; i < track->entry; i++) {
2388  int roll_samples_remaining = roll_samples;
2389  int distance = 0;
2390  for (j = i - 1; j >= 0; j--) {
2391  roll_samples_remaining -= get_cluster_duration(track, j);
2392  distance++;
2393  if (roll_samples_remaining <= 0)
2394  break;
2395  }
2396  /* We don't have enough preceeding samples to compute a valid
2397  roll_distance here, so this sample can't be independently
2398  decoded. */
2399  if (roll_samples_remaining > 0)
2400  distance = 0;
2401  /* Verify distance is a maximum of 32 (2.5ms) packets. */
2402  if (distance > 32)
2403  return AVERROR_INVALIDDATA;
2404  if (i && distance == sgpd_entries[entries].roll_distance) {
2405  sgpd_entries[entries].count++;
2406  } else {
2407  entries++;
2408  sgpd_entries[entries].count = 1;
2409  sgpd_entries[entries].roll_distance = distance;
2410  sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2411  }
2412  }
2413  } else {
2414  entries++;
2415  sgpd_entries[entries].count = track->sample_count;
2416  sgpd_entries[entries].roll_distance = 1;
2417  sgpd_entries[entries].group_description_index = ++group;
2418  }
2419  entries++;
2420 
2421  if (!group) {
2422  av_free(sgpd_entries);
2423  return 0;
2424  }
2425 
2426  /* Write sgpd tag */
2427  avio_wb32(pb, 24 + (group * 2)); /* size */
2428  ffio_wfourcc(pb, "sgpd");
2429  avio_wb32(pb, 1 << 24); /* fullbox */
2430  ffio_wfourcc(pb, "roll");
2431  avio_wb32(pb, 2); /* default_length */
2432  avio_wb32(pb, group); /* entry_count */
2433  for (i = 0; i < entries; i++) {
2434  if (sgpd_entries[i].group_description_index) {
2435  avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2436  }
2437  }
2438 
2439  /* Write sbgp tag */
2440  avio_wb32(pb, 20 + (entries * 8)); /* size */
2441  ffio_wfourcc(pb, "sbgp");
2442  avio_wb32(pb, 0); /* fullbox */
2443  ffio_wfourcc(pb, "roll");
2444  avio_wb32(pb, entries); /* entry_count */
2445  for (i = 0; i < entries; i++) {
2446  avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2447  avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2448  }
2449 
2450  av_free(sgpd_entries);
2451  return 0;
2452 }
2453 
2454 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2455 {
2456  int64_t pos = avio_tell(pb);
2457  int ret = 0;
2458 
2459  avio_wb32(pb, 0); /* size */
2460  ffio_wfourcc(pb, "stbl");
2461  if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2462  return ret;
2463  mov_write_stts_tag(pb, track);
2464  if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2465  track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2466  track->has_keyframes && track->has_keyframes < track->entry)
2467  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2468  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2469  mov_write_sdtp_tag(pb, track);
2470  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2471  mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2472  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2473  track->flags & MOV_TRACK_CTTS && track->entry) {
2474 
2475  if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2476  return ret;
2477  }
2478  mov_write_stsc_tag(pb, track);
2479  mov_write_stsz_tag(pb, track);
2480  mov_write_stco_tag(pb, track);
2481  if (track->cenc.aes_ctr) {
2482  ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2483  }
2484  if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2485  mov_preroll_write_stbl_atoms(pb, track);
2486  }
2487  return update_size(pb, pos);
2488 }
2489 
2490 static int mov_write_dinf_tag(AVIOContext *pb)
2491 {
2492  int64_t pos = avio_tell(pb);
2493  avio_wb32(pb, 0); /* size */
2494  ffio_wfourcc(pb, "dinf");
2495  mov_write_dref_tag(pb);
2496  return update_size(pb, pos);
2497 }
2498 
2499 static int mov_write_nmhd_tag(AVIOContext *pb)
2500 {
2501  avio_wb32(pb, 12);
2502  ffio_wfourcc(pb, "nmhd");
2503  avio_wb32(pb, 0);
2504  return 12;
2505 }
2506 
2507 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2508 {
2509  int64_t pos = avio_tell(pb);
2510  const char *font = "Lucida Grande";
2511  avio_wb32(pb, 0); /* size */
2512  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2513  avio_wb32(pb, 0); /* version & flags */
2514  avio_wb16(pb, 0); /* text font */
2515  avio_wb16(pb, 0); /* text face */
2516  avio_wb16(pb, 12); /* text size */
2517  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2518  avio_wb16(pb, 0x0000); /* text color (red) */
2519  avio_wb16(pb, 0x0000); /* text color (green) */
2520  avio_wb16(pb, 0x0000); /* text color (blue) */
2521  avio_wb16(pb, 0xffff); /* background color (red) */
2522  avio_wb16(pb, 0xffff); /* background color (green) */
2523  avio_wb16(pb, 0xffff); /* background color (blue) */
2524  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2525  avio_write(pb, font, strlen(font)); /* font name */
2526  return update_size(pb, pos);
2527 }
2528 
2529 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2530 {
2531  int64_t pos = avio_tell(pb);
2532  avio_wb32(pb, 0); /* size */
2533  ffio_wfourcc(pb, "gmhd");
2534  avio_wb32(pb, 0x18); /* gmin size */
2535  ffio_wfourcc(pb, "gmin");/* generic media info */
2536  avio_wb32(pb, 0); /* version & flags */
2537  avio_wb16(pb, 0x40); /* graphics mode = */
2538  avio_wb16(pb, 0x8000); /* opColor (r?) */
2539  avio_wb16(pb, 0x8000); /* opColor (g?) */
2540  avio_wb16(pb, 0x8000); /* opColor (b?) */
2541  avio_wb16(pb, 0); /* balance */
2542  avio_wb16(pb, 0); /* reserved */
2543 
2544  /*
2545  * This special text atom is required for
2546  * Apple Quicktime chapters. The contents
2547  * don't appear to be documented, so the
2548  * bytes are copied verbatim.
2549  */
2550  if (track->tag != MKTAG('c','6','0','8')) {
2551  avio_wb32(pb, 0x2C); /* size */
2552  ffio_wfourcc(pb, "text");
2553  avio_wb16(pb, 0x01);
2554  avio_wb32(pb, 0x00);
2555  avio_wb32(pb, 0x00);
2556  avio_wb32(pb, 0x00);
2557  avio_wb32(pb, 0x01);
2558  avio_wb32(pb, 0x00);
2559  avio_wb32(pb, 0x00);
2560  avio_wb32(pb, 0x00);
2561  avio_wb32(pb, 0x00004000);
2562  avio_wb16(pb, 0x0000);
2563  }
2564 
2565  if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2566  int64_t tmcd_pos = avio_tell(pb);
2567  avio_wb32(pb, 0); /* size */
2568  ffio_wfourcc(pb, "tmcd");
2569  mov_write_tcmi_tag(pb, track);
2570  update_size(pb, tmcd_pos);
2571  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2572  int64_t gpmd_pos = avio_tell(pb);
2573  avio_wb32(pb, 0); /* size */
2574  ffio_wfourcc(pb, "gpmd");
2575  avio_wb32(pb, 0); /* version */
2576  update_size(pb, gpmd_pos);
2577  }
2578  return update_size(pb, pos);
2579 }
2580 
2581 static int mov_write_smhd_tag(AVIOContext *pb)
2582 {
2583  avio_wb32(pb, 16); /* size */
2584  ffio_wfourcc(pb, "smhd");
2585  avio_wb32(pb, 0); /* version & flags */
2586  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2587  avio_wb16(pb, 0); /* reserved */
2588  return 16;
2589 }
2590 
2591 static int mov_write_vmhd_tag(AVIOContext *pb)
2592 {
2593  avio_wb32(pb, 0x14); /* size (always 0x14) */
2594  ffio_wfourcc(pb, "vmhd");
2595  avio_wb32(pb, 0x01); /* version & flags */
2596  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2597  return 0x14;
2598 }
2599 
2600 static int is_clcp_track(MOVTrack *track)
2601 {
2602  return track->tag == MKTAG('c','7','0','8') ||
2603  track->tag == MKTAG('c','6','0','8');
2604 }
2605 
2606 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2607 {
2608  MOVMuxContext *mov = s->priv_data;
2609  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2610  int64_t pos = avio_tell(pb);
2611 
2612  hdlr = "dhlr";
2613  hdlr_type = "url ";
2614  descr = "DataHandler";
2615 
2616  if (track) {
2617  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2618  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2619  hdlr_type = "vide";
2620  descr = "VideoHandler";
2621  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2622  hdlr_type = "soun";
2623  descr = "SoundHandler";
2624  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2625  if (is_clcp_track(track)) {
2626  hdlr_type = "clcp";
2627  descr = "ClosedCaptionHandler";
2628  } else {
2629  if (track->tag == MKTAG('t','x','3','g')) {
2630  hdlr_type = "sbtl";
2631  } else if (track->tag == MKTAG('m','p','4','s')) {
2632  hdlr_type = "subp";
2633  } else {
2634  hdlr_type = "text";
2635  }
2636  descr = "SubtitleHandler";
2637  }
2638  } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2639  hdlr_type = "hint";
2640  descr = "HintHandler";
2641  } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2642  hdlr_type = "tmcd";
2643  descr = "TimeCodeHandler";
2644  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2645  hdlr_type = "meta";
2646  descr = "GoPro MET"; // GoPro Metadata
2647  } else {
2648  av_log(s, AV_LOG_WARNING,
2649  "Unknown hldr_type for %s, writing dummy values\n",
2650  av_fourcc2str(track->par->codec_tag));
2651  }
2652  if (track->st) {
2653  // hdlr.name is used by some players to identify the content title
2654  // of the track. So if an alternate handler description is
2655  // specified, use it.
2656  AVDictionaryEntry *t;
2657  t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
2658  if (t && utf8len(t->value))
2659  descr = t->value;
2660  }
2661  }
2662 
2663  if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
2664  descr = "";
2665 
2666  avio_wb32(pb, 0); /* size */
2667  ffio_wfourcc(pb, "hdlr");
2668  avio_wb32(pb, 0); /* Version & flags */
2669  avio_write(pb, hdlr, 4); /* handler */
2670  ffio_wfourcc(pb, hdlr_type); /* handler type */
2671  avio_wb32(pb, 0); /* reserved */
2672  avio_wb32(pb, 0); /* reserved */
2673  avio_wb32(pb, 0); /* reserved */
2674  if (!track || track->mode == MODE_MOV)
2675  avio_w8(pb, strlen(descr)); /* pascal string */
2676  avio_write(pb, descr, strlen(descr)); /* handler description */
2677  if (track && track->mode != MODE_MOV)
2678  avio_w8(pb, 0); /* c string */
2679  return update_size(pb, pos);
2680 }
2681 
2682 static int mov_write_hmhd_tag(AVIOContext *pb)
2683 {
2684  /* This atom must be present, but leaving the values at zero
2685  * seems harmless. */
2686  avio_wb32(pb, 28); /* size */
2687  ffio_wfourcc(pb, "hmhd");
2688  avio_wb32(pb, 0); /* version, flags */
2689  avio_wb16(pb, 0); /* maxPDUsize */
2690  avio_wb16(pb, 0); /* avgPDUsize */
2691  avio_wb32(pb, 0); /* maxbitrate */
2692  avio_wb32(pb, 0); /* avgbitrate */
2693  avio_wb32(pb, 0); /* reserved */
2694  return 28;
2695 }
2696 
2697 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2698 {
2699  int64_t pos = avio_tell(pb);
2700  int ret;
2701 
2702  avio_wb32(pb, 0); /* size */
2703  ffio_wfourcc(pb, "minf");
2704  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2705  mov_write_vmhd_tag(pb);
2706  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2707  mov_write_smhd_tag(pb);
2708  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2709  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2710  mov_write_gmhd_tag(pb, track);
2711  } else {
2712  mov_write_nmhd_tag(pb);
2713  }
2714  } else if (track->tag == MKTAG('r','t','p',' ')) {
2715  mov_write_hmhd_tag(pb);
2716  } else if (track->tag == MKTAG('t','m','c','d')) {
2717  if (track->mode != MODE_MOV)
2718  mov_write_nmhd_tag(pb);
2719  else
2720  mov_write_gmhd_tag(pb, track);
2721  } else if (track->tag == MKTAG('g','p','m','d')) {
2722  mov_write_gmhd_tag(pb, track);
2723  }
2724  if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
2725  mov_write_hdlr_tag(s, pb, NULL);
2726  mov_write_dinf_tag(pb);
2727  if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2728  return ret;
2729  return update_size(pb, pos);
2730 }
2731 
2732 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2733  MOVTrack *track)
2734 {
2735  int version = track->track_duration < INT32_MAX ? 0 : 1;
2736 
2737  if (track->mode == MODE_ISM)
2738  version = 1;
2739 
2740  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2741  ffio_wfourcc(pb, "mdhd");
2742  avio_w8(pb, version);
2743  avio_wb24(pb, 0); /* flags */
2744  if (version == 1) {
2745  avio_wb64(pb, track->time);
2746  avio_wb64(pb, track->time);
2747  } else {
2748  avio_wb32(pb, track->time); /* creation time */
2749  avio_wb32(pb, track->time); /* modification time */
2750  }
2751  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2752  if (!track->entry && mov->mode == MODE_ISM)
2753  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2754  else if (!track->entry)
2755  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2756  else
2757  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2758  avio_wb16(pb, track->language); /* language */
2759  avio_wb16(pb, 0); /* reserved (quality) */
2760 
2761  if (version != 0 && track->mode == MODE_MOV) {
2762  av_log(NULL, AV_LOG_ERROR,
2763  "FATAL error, file duration too long for timebase, this file will not be\n"
2764  "playable with QuickTime. Choose a different timebase with "
2765  "-video_track_timescale or a different container format\n");
2766  }
2767 
2768  return 32;
2769 }
2770 
2771 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2772  MOVMuxContext *mov, MOVTrack *track)
2773 {
2774  int64_t pos = avio_tell(pb);
2775  int ret;
2776 
2777  avio_wb32(pb, 0); /* size */
2778  ffio_wfourcc(pb, "mdia");
2779  mov_write_mdhd_tag(pb, mov, track);
2780  mov_write_hdlr_tag(s, pb, track);
2781  if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2782  return ret;
2783  return update_size(pb, pos);
2784 }
2785 
2786 /* transformation matrix
2787  |a b u|
2788  |c d v|
2789  |tx ty w| */
2790 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2791  int16_t d, int16_t tx, int16_t ty)
2792 {
2793  avio_wb32(pb, a << 16); /* 16.16 format */
2794  avio_wb32(pb, b << 16); /* 16.16 format */
2795  avio_wb32(pb, 0); /* u in 2.30 format */
2796  avio_wb32(pb, c << 16); /* 16.16 format */
2797  avio_wb32(pb, d << 16); /* 16.16 format */
2798  avio_wb32(pb, 0); /* v in 2.30 format */
2799  avio_wb32(pb, tx << 16); /* 16.16 format */
2800  avio_wb32(pb, ty << 16); /* 16.16 format */
2801  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2802 }
2803 
2804 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2805  MOVTrack *track, AVStream *st)
2806 {
2807  int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2808  track->timescale, AV_ROUND_UP);
2809  int version = duration < INT32_MAX ? 0 : 1;
2810  int flags = MOV_TKHD_FLAG_IN_MOVIE;
2811  int rotation = 0;
2812  int group = 0;
2813 
2814  uint32_t *display_matrix = NULL;
2815  int display_matrix_size, i;
2816 
2817  if (st) {
2818  if (mov->per_stream_grouping)
2819  group = st->index;
2820  else
2821  group = st->codecpar->codec_type;
2822 
2823  display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2824  &display_matrix_size);
2825  if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2826  display_matrix = NULL;
2827  }
2828 
2829  if (track->flags & MOV_TRACK_ENABLED)
2830  flags |= MOV_TKHD_FLAG_ENABLED;
2831 
2832  if (track->mode == MODE_ISM)
2833  version = 1;
2834 
2835  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2836  ffio_wfourcc(pb, "tkhd");
2837  avio_w8(pb, version);
2838  avio_wb24(pb, flags);
2839  if (version == 1) {
2840  avio_wb64(pb, track->time);
2841  avio_wb64(pb, track->time);
2842  } else {
2843  avio_wb32(pb, track->time); /* creation time */
2844  avio_wb32(pb, track->time); /* modification time */
2845  }
2846  avio_wb32(pb, track->track_id); /* track-id */
2847  avio_wb32(pb, 0); /* reserved */
2848  if (!track->entry && mov->mode == MODE_ISM)
2849  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2850  else if (!track->entry)
2851  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2852  else
2853  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2854 
2855  avio_wb32(pb, 0); /* reserved */
2856  avio_wb32(pb, 0); /* reserved */
2857  avio_wb16(pb, 0); /* layer */
2858  avio_wb16(pb, group); /* alternate group) */
2859  /* Volume, only for audio */
2860  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2861  avio_wb16(pb, 0x0100);
2862  else
2863  avio_wb16(pb, 0);
2864  avio_wb16(pb, 0); /* reserved */
2865 
2866  /* Matrix structure */
2867 #if FF_API_OLD_ROTATE_API
2868  if (st && st->metadata) {
2869  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2870  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2871  }
2872 #endif
2873  if (display_matrix) {
2874  for (i = 0; i < 9; i++)
2875  avio_wb32(pb, display_matrix[i]);
2876 #if FF_API_OLD_ROTATE_API
2877  } else if (rotation == 90) {
2878  write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2879  } else if (rotation == 180) {
2880  write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2881  } else if (rotation == 270) {
2882  write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2883 #endif
2884  } else {
2885  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2886  }
2887  /* Track width and height, for visual only */
2888  if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2889  track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2890  int64_t track_width_1616;
2891  if (track->mode == MODE_MOV) {
2892  track_width_1616 = track->par->width * 0x10000ULL;
2893  } else {
2894  track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2895  track->par->width * 0x10000LL,
2896  st->sample_aspect_ratio.den);
2897  if (!track_width_1616 ||
2898  track->height != track->par->height ||
2899  track_width_1616 > UINT32_MAX)
2900  track_width_1616 = track->par->width * 0x10000ULL;
2901  }
2902  if (track_width_1616 > UINT32_MAX) {
2903  av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
2904  track_width_1616 = 0;
2905  }
2906  avio_wb32(pb, track_width_1616);
2907  if (track->height > 0xFFFF) {
2908  av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
2909  avio_wb32(pb, 0);
2910  } else
2911  avio_wb32(pb, track->height * 0x10000U);
2912  } else {
2913  avio_wb32(pb, 0);
2914  avio_wb32(pb, 0);
2915  }
2916  return 0x5c;
2917 }
2918 
2919 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2920 {
2921  int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
2922  track->par->sample_aspect_ratio.den);
2923 
2924  int64_t pos = avio_tell(pb);
2925 
2926  avio_wb32(pb, 0); /* size */
2927  ffio_wfourcc(pb, "tapt");
2928 
2929  avio_wb32(pb, 20);
2930  ffio_wfourcc(pb, "clef");
2931  avio_wb32(pb, 0);
2932  avio_wb32(pb, width << 16);
2933  avio_wb32(pb, track->par->height << 16);
2934 
2935  avio_wb32(pb, 20);
2936  ffio_wfourcc(pb, "prof");
2937  avio_wb32(pb, 0);
2938  avio_wb32(pb, width << 16);
2939  avio_wb32(pb, track->par->height << 16);
2940 
2941  avio_wb32(pb, 20);
2942  ffio_wfourcc(pb, "enof");
2943  avio_wb32(pb, 0);
2944  avio_wb32(pb, track->par->width << 16);
2945  avio_wb32(pb, track->par->height << 16);
2946 
2947  return update_size(pb, pos);
2948 }
2949 
2950 // This box seems important for the psp playback ... without it the movie seems to hang
2951 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2952  MOVTrack *track)
2953 {
2954  int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2955  track->timescale, AV_ROUND_UP);
2956  int version = duration < INT32_MAX ? 0 : 1;
2957  int entry_size, entry_count, size;
2958  int64_t delay, start_ct = track->start_cts;
2959  int64_t start_dts = track->start_dts;
2960 
2961  if (track->entry) {
2962  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2963 
2964  av_log(mov->fc, AV_LOG_DEBUG,
2965  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2966  track->cluster[0].dts, track->cluster[0].cts,
2967  start_dts, start_ct, track->track_id);
2968  start_dts = track->cluster[0].dts;
2969  start_ct = track->cluster[0].cts;
2970  }
2971  }
2972 
2973  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2974  track->timescale, AV_ROUND_DOWN);
2975  version |= delay < INT32_MAX ? 0 : 1;
2976 
2977  entry_size = (version == 1) ? 20 : 12;
2978  entry_count = 1 + (delay > 0);
2979  size = 24 + entry_count * entry_size;
2980 
2981  /* write the atom data */
2982  avio_wb32(pb, size);
2983  ffio_wfourcc(pb, "edts");
2984  avio_wb32(pb, size - 8);
2985  ffio_wfourcc(pb, "elst");
2986  avio_w8(pb, version);
2987  avio_wb24(pb, 0); /* flags */
2988 
2989  avio_wb32(pb, entry_count);
2990  if (delay > 0) { /* add an empty edit to delay presentation */
2991  /* In the positive delay case, the delay includes the cts
2992  * offset, and the second edit list entry below trims out
2993  * the same amount from the actual content. This makes sure
2994  * that the offset last sample is included in the edit
2995  * list duration as well. */
2996  if (version == 1) {
2997  avio_wb64(pb, delay);
2998  avio_wb64(pb, -1);
2999  } else {
3000  avio_wb32(pb, delay);
3001  avio_wb32(pb, -1);
3002  }
3003  avio_wb32(pb, 0x00010000);
3004  } else {
3005  /* Avoid accidentally ending up with start_ct = -1 which has got a
3006  * special meaning. Normally start_ct should end up positive or zero
3007  * here, but use FFMIN in case dts is a small positive integer
3008  * rounded to 0 when represented in MOV_TIMESCALE units. */
3009  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
3010  start_ct = -FFMIN(start_dts, 0);
3011  /* Note, this delay is calculated from the pts of the first sample,
3012  * ensuring that we don't reduce the duration for cases with
3013  * dts<0 pts=0. */
3014  duration += delay;
3015  }
3016 
3017  /* For fragmented files, we don't know the full length yet. Setting
3018  * duration to 0 allows us to only specify the offset, including
3019  * the rest of the content (from all future fragments) without specifying
3020  * an explicit duration. */
3021  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3022  duration = 0;
3023 
3024  /* duration */
3025  if (version == 1) {
3026  avio_wb64(pb, duration);
3027  avio_wb64(pb, start_ct);
3028  } else {
3029  avio_wb32(pb, duration);
3030  avio_wb32(pb, start_ct);
3031  }
3032  avio_wb32(pb, 0x00010000);
3033  return size;
3034 }
3035 
3036 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3037 {
3038  avio_wb32(pb, 20); // size
3039  ffio_wfourcc(pb, "tref");
3040  avio_wb32(pb, 12); // size (subatom)
3041  avio_wl32(pb, track->tref_tag);
3042  avio_wb32(pb, track->tref_id);
3043  return 20;
3044 }
3045 
3046 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3047 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
3048 {
3049  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3050  ffio_wfourcc(pb, "uuid");
3051  ffio_wfourcc(pb, "USMT");
3052  avio_wb32(pb, 0x21d24fce);
3053  avio_wb32(pb, 0xbb88695c);
3054  avio_wb32(pb, 0xfac9c740);
3055  avio_wb32(pb, 0x1c); // another size here!
3056  ffio_wfourcc(pb, "MTDT");
3057  avio_wb32(pb, 0x00010012);
3058  avio_wb32(pb, 0x0a);
3059  avio_wb32(pb, 0x55c40000);
3060  avio_wb32(pb, 0x1);
3061  avio_wb32(pb, 0x0);
3062  return 0x34;
3063 }
3064 
3065 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3066 {
3067  AVFormatContext *ctx = track->rtp_ctx;
3068  char buf[1000] = "";
3069  int len;
3070 
3071  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3072  NULL, NULL, 0, 0, ctx);
3073  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3074  len = strlen(buf);
3075 
3076  avio_wb32(pb, len + 24);
3077  ffio_wfourcc(pb, "udta");
3078  avio_wb32(pb, len + 16);
3079  ffio_wfourcc(pb, "hnti");
3080  avio_wb32(pb, len + 8);
3081  ffio_wfourcc(pb, "sdp ");
3082  avio_write(pb, buf, len);
3083  return len + 24;
3084 }
3085 
3086 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
3087  const char *tag, const char *str)
3088 {
3089  int64_t pos = avio_tell(pb);
3090  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3091  if (!t || !utf8len(t->value))
3092  return 0;
3093 
3094  avio_wb32(pb, 0); /* size */
3095  ffio_wfourcc(pb, tag); /* type */
3096  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3097  return update_size(pb, pos);
3098 }
3099 
3100 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3101  AVStream *st)
3102 {
3103  AVIOContext *pb_buf;
3104  int ret, size;
3105  uint8_t *buf;
3106 
3107  if (!st)
3108  return 0;
3109 
3110  ret = avio_open_dyn_buf(&pb_buf);
3111  if (ret < 0)
3112  return ret;
3113 
3114  if (mov->mode & (MODE_MP4|MODE_MOV))
3115  mov_write_track_metadata(pb_buf, st, "name", "title");
3116 
3117  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3118  avio_wb32(pb, size + 8);
3119  ffio_wfourcc(pb, "udta");
3120  avio_write(pb, buf, size);
3121  }
3122  av_free(buf);
3123 
3124  return 0;
3125 }
3126 
3127 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
3128  MOVTrack *track, AVStream *st)
3129 {
3130  int64_t pos = avio_tell(pb);
3131  int entry_backup = track->entry;
3132  int chunk_backup = track->chunkCount;
3133  int ret;
3134 
3135  /* If we want to have an empty moov, but some samples already have been
3136  * buffered (delay_moov), pretend that no samples have been written yet. */
3137  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3138  track->chunkCount = track->entry = 0;
3139 
3140  avio_wb32(pb, 0); /* size */
3141  ffio_wfourcc(pb, "trak");
3142  mov_write_tkhd_tag(pb, mov, track, st);
3143 
3144  av_assert2(mov->use_editlist >= 0);
3145 
3146  if (track->start_dts != AV_NOPTS_VALUE) {
3147  if (mov->use_editlist)
3148  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3149  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3150  av_log(mov->fc, AV_LOG_WARNING,
3151  "Not writing any edit list even though one would have been required\n");
3152  }
3153 
3154  if (track->tref_tag)
3155  mov_write_tref_tag(pb, track);
3156 
3157  if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3158  return ret;
3159  if (track->mode == MODE_PSP)
3160  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3161  if (track->tag == MKTAG('r','t','p',' '))
3162  mov_write_udta_sdp(pb, track);
3163  if (track->mode == MODE_MOV) {
3164  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3165  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3166  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3167  mov_write_tapt_tag(pb, track);
3168  }
3169  }
3170  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3171  mov_write_tapt_tag(pb, track);
3172  }
3173  }
3174  mov_write_track_udta_tag(pb, mov, st);
3175  track->entry = entry_backup;
3176  track->chunkCount = chunk_backup;
3177  return update_size(pb, pos);
3178 }
3179 
3180 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
3181 {
3182  int i, has_audio = 0, has_video = 0;
3183  int64_t pos = avio_tell(pb);
3184  int audio_profile = mov->iods_audio_profile;
3185  int video_profile = mov->iods_video_profile;
3186  for (i = 0; i < mov->nb_streams; i++) {
3187  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3188  has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3189  has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3190  }
3191  }
3192  if (audio_profile < 0)
3193  audio_profile = 0xFF - has_audio;
3194  if (video_profile < 0)
3195  video_profile = 0xFF - has_video;
3196  avio_wb32(pb, 0x0); /* size */
3197  ffio_wfourcc(pb, "iods");
3198  avio_wb32(pb, 0); /* version & flags */
3199  put_descr(pb, 0x10, 7);
3200  avio_wb16(pb, 0x004f);
3201  avio_w8(pb, 0xff);
3202  avio_w8(pb, 0xff);
3203  avio_w8(pb, audio_profile);
3204  avio_w8(pb, video_profile);
3205  avio_w8(pb, 0xff);
3206  return update_size(pb, pos);
3207 }
3208 
3209 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3210 {
3211  avio_wb32(pb, 0x20); /* size */
3212  ffio_wfourcc(pb, "trex");
3213  avio_wb32(pb, 0); /* version & flags */
3214  avio_wb32(pb, track->track_id); /* track ID */
3215  avio_wb32(pb, 1); /* default sample description index */
3216  avio_wb32(pb, 0); /* default sample duration */
3217  avio_wb32(pb, 0); /* default sample size */
3218  avio_wb32(pb, 0); /* default sample flags */
3219  return 0;
3220 }
3221 
3222 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
3223 {
3224  int64_t pos = avio_tell(pb);
3225  int i;
3226  avio_wb32(pb, 0x0); /* size */
3227  ffio_wfourcc(pb, "mvex");
3228  for (i = 0; i < mov->nb_streams; i++)
3229  mov_write_trex_tag(pb, &mov->tracks[i]);
3230  return update_size(pb, pos);
3231 }
3232 
3233 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3234 {
3235  int max_track_id = 1, i;
3236  int64_t max_track_len = 0;
3237  int version;
3238 
3239  for (i = 0; i < mov->nb_streams; i++) {
3240  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3241  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
3242  MOV_TIMESCALE,
3243  mov->tracks[i].timescale,
3244  AV_ROUND_UP);
3245  if (max_track_len < max_track_len_temp)
3246  max_track_len = max_track_len_temp;
3247  if (max_track_id < mov->tracks[i].track_id)
3248  max_track_id = mov->tracks[i].track_id;
3249  }
3250  }
3251  /* If using delay_moov, make sure the output is the same as if no
3252  * samples had been written yet. */
3253  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3254  max_track_len = 0;
3255  max_track_id = 1;
3256  }
3257 
3258  version = max_track_len < UINT32_MAX ? 0 : 1;
3259  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3260 
3261  ffio_wfourcc(pb, "mvhd");
3262  avio_w8(pb, version);
3263  avio_wb24(pb, 0); /* flags */
3264  if (version == 1) {
3265  avio_wb64(pb, mov->time);
3266  avio_wb64(pb, mov->time);
3267  } else {
3268  avio_wb32(pb, mov->time); /* creation time */
3269  avio_wb32(pb, mov->time); /* modification time */
3270  }
3271  avio_wb32(pb, MOV_TIMESCALE);
3272  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3273 
3274  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3275  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3276  avio_wb16(pb, 0); /* reserved */
3277  avio_wb32(pb, 0); /* reserved */
3278  avio_wb32(pb, 0); /* reserved */
3279 
3280  /* Matrix structure */
3281  write_matrix(pb, 1, 0, 0, 1, 0, 0);
3282 
3283  avio_wb32(pb, 0); /* reserved (preview time) */
3284  avio_wb32(pb, 0); /* reserved (preview duration) */
3285  avio_wb32(pb, 0); /* reserved (poster time) */
3286  avio_wb32(pb, 0); /* reserved (selection time) */
3287  avio_wb32(pb, 0); /* reserved (selection duration) */
3288  avio_wb32(pb, 0); /* reserved (current time) */
3289  avio_wb32(pb, max_track_id + 1); /* Next track id */
3290  return 0x6c;
3291 }
3292 
3293 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3294  AVFormatContext *s)
3295 {
3296  avio_wb32(pb, 33); /* size */
3297  ffio_wfourcc(pb, "hdlr");
3298  avio_wb32(pb, 0);
3299  avio_wb32(pb, 0);
3300  ffio_wfourcc(pb, "mdir");
3301  ffio_wfourcc(pb, "appl");
3302  avio_wb32(pb, 0);
3303  avio_wb32(pb, 0);
3304  avio_w8(pb, 0);
3305  return 33;
3306 }
3307 
3308 /* helper function to write a data tag with the specified string as data */
3309 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3310 {
3311  if (long_style) {
3312  int size = 16 + strlen(data);
3313  avio_wb32(pb, size); /* size */
3314  ffio_wfourcc(pb, "data");
3315  avio_wb32(pb, 1);
3316  avio_wb32(pb, 0);
3317  avio_write(pb, data, strlen(data));
3318  return size;
3319  } else {
3320  if (!lang)
3321  lang = ff_mov_iso639_to_lang("und", 1);
3322  avio_wb16(pb, strlen(data)); /* string length */
3323  avio_wb16(pb, lang);
3324  avio_write(pb, data, strlen(data));
3325  return strlen(data) + 4;
3326  }
3327 }
3328 
3329 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3330  const char *value, int lang, int long_style)
3331 {
3332  int size = 0;
3333  if (value && value[0]) {
3334  int64_t pos = avio_tell(pb);
3335  avio_wb32(pb, 0); /* size */
3336  ffio_wfourcc(pb, name);
3337  mov_write_string_data_tag(pb, value, lang, long_style);
3338  size = update_size(pb, pos);
3339  }
3340  return size;
3341 }
3342 
3343 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
3344  const char *tag, int *lang)
3345 {
3346  int l, len, len2;
3347  AVDictionaryEntry *t, *t2 = NULL;
3348  char tag2[16];
3349 
3350  *lang = 0;
3351 
3352  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3353  return NULL;
3354 
3355  len = strlen(t->key);
3356  snprintf(tag2, sizeof(tag2), "%s-", tag);
3357  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3358  len2 = strlen(t2->key);
3359  if (len2 == len + 4 && !strcmp(t->value, t2->value)
3360  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3361  *lang = l;
3362  return t;
3363  }
3364  }
3365  return t;
3366 }
3367 
3368 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
3369  const char *name, const char *tag,
3370  int long_style)
3371 {
3372  int lang;
3373  AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3374  if (!t)
3375  return 0;
3376  return mov_write_string_tag(pb, name, t->value, lang, long_style);
3377 }
3378 
3379 /* iTunes bpm number */
3380 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
3381 {
3382  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3383  int size = 0, tmpo = t ? atoi(t->value) : 0;
3384  if (tmpo) {
3385  size = 26;
3386  avio_wb32(pb, size);
3387  ffio_wfourcc(pb, "tmpo");
3388  avio_wb32(pb, size-8); /* size */
3389  ffio_wfourcc(pb, "data");
3390  avio_wb32(pb, 0x15); //type specifier
3391  avio_wb32(pb, 0);
3392  avio_wb16(pb, tmpo); // data
3393  }
3394  return size;
3395 }
3396 
3397 /* 3GPP TS 26.244 */
3398 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
3399 {
3400  int lang;
3401  int64_t pos = avio_tell(pb);
3402  double latitude, longitude, altitude;
3403  int32_t latitude_fix, longitude_fix, altitude_fix;
3404  AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3405  const char *ptr, *place = "";
3406  char *end;
3407  static const char *astronomical_body = "earth";
3408  if (!t)
3409  return 0;
3410 
3411  ptr = t->value;
3412  longitude = strtod(ptr, &end);
3413  if (end == ptr) {
3414  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3415  return 0;
3416  }
3417  ptr = end;
3418  latitude = strtod(ptr, &end);
3419  if (end == ptr) {
3420  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3421  return 0;
3422  }
3423  ptr = end;
3424  altitude = strtod(ptr, &end);
3425  /* If no altitude was present, the default 0 should be fine */
3426  if (*end == '/')
3427  place = end + 1;
3428 
3429  latitude_fix = (int32_t) ((1 << 16) * latitude);
3430  longitude_fix = (int32_t) ((1 << 16) * longitude);
3431  altitude_fix = (int32_t) ((1 << 16) * altitude);
3432 
3433  avio_wb32(pb, 0); /* size */
3434  ffio_wfourcc(pb, "loci"); /* type */
3435  avio_wb32(pb, 0); /* version + flags */
3436  avio_wb16(pb, lang);
3437  avio_write(pb, place, strlen(place) + 1);
3438  avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3439  avio_wb32(pb, latitude_fix);
3440  avio_wb32(pb, longitude_fix);
3441  avio_wb32(pb, altitude_fix);
3442  avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3443  avio_w8(pb, 0); /* additional notes, null terminated string */
3444 
3445  return update_size(pb, pos);
3446 }
3447 
3448 /* iTunes track or disc number */
3449 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
3450  AVFormatContext *s, int disc)
3451 {
3452  AVDictionaryEntry *t = av_dict_get(s->metadata,
3453  disc ? "disc" : "track",
3454  NULL, 0);
3455  int size = 0, track = t ? atoi(t->value) : 0;
3456  if (track) {
3457  int tracks = 0;
3458  char *slash = strchr(t->value, '/');
3459  if (slash)
3460  tracks = atoi(slash + 1);
3461  avio_wb32(pb, 32); /* size */
3462  ffio_wfourcc(pb, disc ? "disk" : "trkn");
3463  avio_wb32(pb, 24); /* size */
3464  ffio_wfourcc(pb, "data");
3465  avio_wb32(pb, 0); // 8 bytes empty
3466  avio_wb32(pb, 0);
3467  avio_wb16(pb, 0); // empty
3468  avio_wb16(pb, track); // track / disc number
3469  avio_wb16(pb, tracks); // total track / disc number
3470  avio_wb16(pb, 0); // empty
3471  size = 32;
3472  }
3473  return size;
3474 }
3475 
3476 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
3477  const char *name, const char *tag,
3478  int len)
3479 {
3480  AVDictionaryEntry *t = NULL;
3481  uint8_t num;
3482  int size = 24 + len;
3483 
3484  if (len != 1 && len != 4)
3485  return -1;
3486 
3487  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3488  return 0;
3489  num = atoi(t->value);
3490 
3491  avio_wb32(pb, size);
3492  ffio_wfourcc(pb, name);
3493  avio_wb32(pb, size - 8);
3494  ffio_wfourcc(pb, "data");
3495  avio_wb32(pb, 0x15);
3496  avio_wb32(pb, 0);
3497  if (len==4) avio_wb32(pb, num);
3498  else avio_w8 (pb, num);
3499 
3500  return size;
3501 }
3502 
3503 static int mov_write_covr(AVIOContext *pb, AVFormatContext *s)
3504 {
3505  MOVMuxContext *mov = s->priv_data;
3506  int64_t pos = 0;
3507  int i;
3508 
3509  for (i = 0; i < s->nb_streams; i++) {
3510  MOVTrack *trk = &mov->tracks[i];
3511 
3512  if (!is_cover_image(trk->st) || trk->cover_image.size <= 0)
3513  continue;
3514 
3515  if (!pos) {
3516  pos = avio_tell(pb);
3517  avio_wb32(pb, 0);
3518  ffio_wfourcc(pb, "covr");
3519  }
3520  avio_wb32(pb, 16 + trk->cover_image.size);
3521  ffio_wfourcc(pb, "data");
3522  avio_wb32(pb, trk->tag);
3523  avio_wb32(pb , 0);
3524  avio_write(pb, trk->cover_image.data, trk->cover_image.size);
3525  }
3526 
3527  return pos ? update_size(pb, pos) : 0;
3528 }
3529 
3530 /* iTunes meta data list */
3531 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3532  AVFormatContext *s)
3533 {
3534  int64_t pos = avio_tell(pb);
3535  avio_wb32(pb, 0); /* size */
3536  ffio_wfourcc(pb, "ilst");
3537  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3538  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3539  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3540  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3541  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3542  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3543  if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3544  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3545  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3546  }
3547  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3548  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3549  mov_write_string_metadata(s, pb, "cprt", "copyright", 1);
3550  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3551  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3552  mov_write_string_metadata(s, pb, "desc", "description",1);
3553  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3554  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3555  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3556  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3557  mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3558  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3559  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3560  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3561  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3562  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3563  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3564  mov_write_covr(pb, s);
3565  mov_write_trkn_tag(pb, mov, s, 0); // track number
3566  mov_write_trkn_tag(pb, mov, s, 1); // disc number
3567  mov_write_tmpo_tag(pb, s);
3568  return update_size(pb, pos);
3569 }
3570 
3571 static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3572  AVFormatContext *s)
3573 {
3574  avio_wb32(pb, 33); /* size */
3575  ffio_wfourcc(pb, "hdlr");
3576  avio_wb32(pb, 0);
3577  avio_wb32(pb, 0);
3578  ffio_wfourcc(pb, "mdta");
3579  avio_wb32(pb, 0);
3580  avio_wb32(pb, 0);
3581  avio_wb32(pb, 0);
3582  avio_w8(pb, 0);
3583  return 33;
3584 }
3585 
3586 static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov,
3587  AVFormatContext *s)
3588 {
3589  AVDictionaryEntry *t = NULL;
3590  int64_t pos = avio_tell(pb);
3591  int64_t curpos, entry_pos;
3592  int count = 0;
3593 
3594  avio_wb32(pb, 0); /* size */
3595  ffio_wfourcc(pb, "keys");
3596  avio_wb32(pb, 0);
3597  entry_pos = avio_tell(pb);
3598  avio_wb32(pb, 0); /* entry count */
3599 
3600  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3601  avio_wb32(pb, strlen(t->key) + 8);
3602  ffio_wfourcc(pb, "mdta");
3603  avio_write(pb, t->key, strlen(t->key));
3604  count += 1;
3605  }
3606  curpos = avio_tell(pb);
3607  avio_seek(pb, entry_pos, SEEK_SET);
3608  avio_wb32(pb, count); // rewrite entry count
3609  avio_seek(pb, curpos, SEEK_SET);
3610 
3611  return update_size(pb, pos);
3612 }
3613 
3614 static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3615  AVFormatContext *s)
3616 {
3617  AVDictionaryEntry *t = NULL;
3618  int64_t pos = avio_tell(pb);
3619  int count = 1; /* keys are 1-index based */
3620 
3621  avio_wb32(pb, 0); /* size */
3622  ffio_wfourcc(pb, "ilst");
3623 
3624  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3625  int64_t entry_pos = avio_tell(pb);
3626  avio_wb32(pb, 0); /* size */
3627  avio_wb32(pb, count); /* key */
3628  mov_write_string_data_tag(pb, t->value, 0, 1);
3629  update_size(pb, entry_pos);
3630  count += 1;
3631  }
3632  return update_size(pb, pos);
3633 }
3634 
3635 /* meta data tags */
3636 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3637  AVFormatContext *s)
3638 {
3639  int size = 0;
3640  int64_t pos = avio_tell(pb);
3641  avio_wb32(pb, 0); /* size */
3642  ffio_wfourcc(pb, "meta");
3643  avio_wb32(pb, 0);
3644  if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3645  mov_write_mdta_hdlr_tag(pb, mov, s);
3646  mov_write_mdta_keys_tag(pb, mov, s);
3647  mov_write_mdta_ilst_tag(pb, mov, s);
3648  }
3649  else {
3650  /* iTunes metadata tag */
3651  mov_write_itunes_hdlr_tag(pb, mov, s);
3652  mov_write_ilst_tag(pb, mov, s);
3653  }
3654  size = update_size(pb, pos);
3655  return size;
3656 }
3657 
3658 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3659  const char *name, const char *key)
3660 {
3661  int len;
3662  AVDictionaryEntry *t;
3663 
3664  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3665  return 0;
3666 
3667  len = strlen(t->value);
3668  if (len > 0) {
3669  int size = len + 8;
3670  avio_wb32(pb, size);
3671  ffio_wfourcc(pb, name);
3672  avio_write(pb, t->value, len);
3673  return size;
3674  }
3675  return 0;
3676 }
3677 
3678 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3679 {
3680  int val;
3681  while (*b) {
3682  GET_UTF8(val, *b++, return -1;)
3683  avio_wb16(pb, val);
3684  }
3685  avio_wb16(pb, 0x00);
3686  return 0;
3687 }
3688 
3689 static uint16_t language_code(const char *str)
3690 {
3691  return (((str[0] - 0x60) & 0x1F) << 10) +
3692  (((str[1] - 0x60) & 0x1F) << 5) +
3693  (( str[2] - 0x60) & 0x1F);
3694 }
3695 
3696 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3697  const char *tag, const char *str)
3698 {
3699  int64_t pos = avio_tell(pb);
3700  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3701  if (!t || !utf8len(t->value))
3702  return 0;
3703  avio_wb32(pb, 0); /* size */
3704  ffio_wfourcc(pb, tag); /* type */
3705  avio_wb32(pb, 0); /* version + flags */
3706  if (!strcmp(tag, "yrrc"))
3707  avio_wb16(pb, atoi(t->value));
3708  else {
3709  avio_wb16(pb, language_code("eng")); /* language */
3710  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3711  if (!strcmp(tag, "albm") &&
3712  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3713  avio_w8(pb, atoi(t->value));
3714  }
3715  return update_size(pb, pos);
3716 }
3717 
3718 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3719 {
3720  int64_t pos = avio_tell(pb);
3721  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3722 
3723  avio_wb32(pb, 0); // size
3724  ffio_wfourcc(pb, "chpl");
3725  avio_wb32(pb, 0x01000000); // version + flags
3726  avio_wb32(pb, 0); // unknown
3727  avio_w8(pb, nb_chapters);
3728 
3729  for (i = 0; i < nb_chapters; i++) {
3730  AVChapter *c = s->chapters[i];
3731  AVDictionaryEntry *t;
3732  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3733 
3734  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3735  int len = FFMIN(strlen(t->value), 255);
3736  avio_w8(pb, len);
3737  avio_write(pb, t->value, len);
3738  } else
3739  avio_w8(pb, 0);
3740  }
3741  return update_size(pb, pos);
3742 }
3743 
3744 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3745  AVFormatContext *s)
3746 {
3747  AVIOContext *pb_buf;
3748  int ret, size;
3749  uint8_t *buf;
3750 
3751  ret = avio_open_dyn_buf(&pb_buf);
3752  if (ret < 0)
3753  return ret;
3754 
3755  if (mov->mode & MODE_3GP) {
3756  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3757  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3758  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3759  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3760  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3761  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3762  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3763  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3764  mov_write_loci_tag(s, pb_buf);
3765  } 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
3766  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3767  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3768  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3769  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3770  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3771  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3772  // currently ignored by mov.c
3773  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3774  // add support for libquicktime, this atom is also actually read by mov.c
3775  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3776  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3777  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3778  mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3779  mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3780  mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3781  mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
3782  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3783  } else {
3784  /* iTunes meta data */
3785  mov_write_meta_tag(pb_buf, mov, s);
3786  mov_write_loci_tag(s, pb_buf);
3787  }
3788 
3789  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3790  mov_write_chpl_tag(pb_buf, s);
3791 
3792  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3793  avio_wb32(pb, size + 8);
3794  ffio_wfourcc(pb, "udta");
3795  avio_write(pb, buf, size);
3796  }
3797  av_free(buf);
3798 
3799  return 0;
3800 }
3801 
3802 static void mov_write_psp_udta_tag(AVIOContext *pb,
3803  const char *str, const char *lang, int type)
3804 {
3805  int len = utf8len(str) + 1;
3806  if (len <= 0)
3807  return;
3808  avio_wb16(pb, len * 2 + 10); /* size */
3809  avio_wb32(pb, type); /* type */
3810  avio_wb16(pb, language_code(lang)); /* language */
3811  avio_wb16(pb, 0x01); /* ? */
3812  ascii_to_wc(pb, str);
3813 }
3814 
3815 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3816 {
3817  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3818  int64_t pos, pos2;
3819 
3820  if (title) {
3821  pos = avio_tell(pb);
3822  avio_wb32(pb, 0); /* size placeholder*/
3823  ffio_wfourcc(pb, "uuid");
3824  ffio_wfourcc(pb, "USMT");
3825  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3826  avio_wb32(pb, 0xbb88695c);
3827  avio_wb32(pb, 0xfac9c740);
3828 
3829  pos2 = avio_tell(pb);
3830  avio_wb32(pb, 0); /* size placeholder*/
3831  ffio_wfourcc(pb, "MTDT");
3832  avio_wb16(pb, 4);
3833 
3834  // ?
3835  avio_wb16(pb, 0x0C); /* size */
3836  avio_wb32(pb, 0x0B); /* type */
3837  avio_wb16(pb, language_code("und")); /* language */
3838  avio_wb16(pb, 0x0); /* ? */
3839  avio_wb16(pb, 0x021C); /* data */
3840 
3841  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3842  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3843  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3844  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3845 
3846  update_size(pb, pos2);
3847  return update_size(pb, pos);
3848  }
3849 
3850  return 0;
3851 }
3852 
3853 static void build_chunks(MOVTrack *trk)
3854 {
3855  int i;
3856  MOVIentry *chunk = &trk->cluster[0];
3857  uint64_t chunkSize = chunk->size;
3858  chunk->chunkNum = 1;
3859  if (trk->chunkCount)
3860  return;
3861  trk->chunkCount = 1;
3862  for (i = 1; i<trk->entry; i++){
3863  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3864  chunkSize + trk->cluster[i].size < (1<<20)){
3865  chunkSize += trk->cluster[i].size;
3866  chunk->samples_in_chunk += trk->cluster[i].entries;
3867  } else {
3868  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3869  chunk=&trk->cluster[i];
3870  chunkSize = chunk->size;
3871  trk->chunkCount++;
3872  }
3873  }
3874 }
3875 
3876 /**
3877  * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
3878  * the stream ids are used as track ids.
3879  *
3880  * This assumes mov->tracks and s->streams are in the same order and
3881  * there are no gaps in either of them (so mov->tracks[n] refers to
3882  * s->streams[n]).
3883  *
3884  * As an exception, there can be more entries in
3885  * s->streams than in mov->tracks, in which case new track ids are
3886  * generated (starting after the largest found stream id).
3887  */
3888 static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
3889 {
3890  int i;
3891 
3892  if (mov->track_ids_ok)
3893  return 0;
3894 
3895  if (mov->use_stream_ids_as_track_ids) {
3896  int next_generated_track_id = 0;
3897  for (i = 0; i < s->nb_streams; i++) {
3898  if (s->streams[i]->id > next_generated_track_id)
3899  next_generated_track_id = s->streams[i]->id;
3900  }
3901 
3902  for (i = 0; i < mov->nb_streams; i++) {
3903  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3904  continue;
3905 
3906  mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
3907  }
3908  } else {
3909  for (i = 0; i < mov->nb_streams; i++) {
3910  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3911  continue;
3912 
3913  mov->tracks[i].track_id = i + 1;
3914  }
3915  }
3916 
3917  mov->track_ids_ok = 1;
3918 
3919  return 0;
3920 }
3921 
3922 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3923  AVFormatContext *s)
3924 {
3925  int i;
3926  int64_t pos = avio_tell(pb);
3927  avio_wb32(pb, 0); /* size placeholder*/
3928  ffio_wfourcc(pb, "moov");
3929 
3930  mov_setup_track_ids(mov, s);
3931 
3932  for (i = 0; i < mov->nb_streams; i++) {
3933  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3934  continue;
3935 
3936  mov->tracks[i].time = mov->time;
3937 
3938  if (mov->tracks[i].entry)
3939  build_chunks(&mov->tracks[i]);
3940  }
3941 
3942  if (mov->chapter_track)
3943  for (i = 0; i < s->nb_streams; i++) {
3944  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3945  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3946  }
3947  for (i = 0; i < mov->nb_streams; i++) {
3948  MOVTrack *track = &mov->tracks[i];
3949  if (track->tag == MKTAG('r','t','p',' ')) {
3950  track->tref_tag = MKTAG('h','i','n','t');
3951  track->tref_id = mov->tracks[track->src_track].track_id;
3952  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3953  int * fallback, size;
3954  fallback = (int*)av_stream_get_side_data(track->st,
3955  AV_PKT_DATA_FALLBACK_TRACK,
3956  &size);
3957  if (fallback != NULL && size == sizeof(int)) {
3958  if (*fallback >= 0 && *fallback < mov->nb_streams) {
3959  track->tref_tag = MKTAG('f','a','l','l');
3960  track->tref_id = mov->tracks[*fallback].track_id;
3961  }
3962  }
3963  }
3964  }
3965  for (i = 0; i < mov->nb_streams; i++) {
3966  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3967  int src_trk = mov->tracks[i].src_track;
3968  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3969  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3970  //src_trk may have a different timescale than the tmcd track
3971  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3972  mov->tracks[i].timescale,
3973  mov->tracks[src_trk].timescale);
3974  }
3975  }
3976 
3977  mov_write_mvhd_tag(pb, mov);
3978  if (mov->mode != MODE_MOV && !mov->iods_skip)
3979  mov_write_iods_tag(pb, mov);
3980  for (i = 0; i < mov->nb_streams; i++) {
3981  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3982  int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3983  if (ret < 0)
3984  return ret;
3985  }
3986  }
3987  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3988  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3989 
3990  if (mov->mode == MODE_PSP)
3991  mov_write_uuidusmt_tag(pb, s);
3992  else
3993  mov_write_udta_tag(pb, mov, s);
3994 
3995  return update_size(pb, pos);
3996 }
3997 
3998 static void param_write_int(AVIOContext *pb, const char *name, int value)
3999 {
4000  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
4001 }
4002 
4003 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
4004 {
4005  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
4006 }
4007 
4008 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
4009 {
4010  char buf[150];
4011  len = FFMIN(sizeof(buf) / 2 - 1, len);
4012  ff_data_to_hex(buf, value, len, 0);
4013  buf[2 * len] = '\0';
4014  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
4015 }
4016 
4017 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
4018 {
4019  int64_t pos = avio_tell(pb);
4020  int i;
4021  int64_t manifest_bit_rate = 0;
4022  AVCPBProperties *props = NULL;
4023 
4024  static const uint8_t uuid[] = {
4025  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4026  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4027  };
4028 
4029  avio_wb32(pb, 0);
4030  ffio_wfourcc(pb, "uuid");
4031  avio_write(pb, uuid, sizeof(uuid));
4032  avio_wb32(pb, 0);
4033 
4034  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
4035  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
4036  avio_printf(pb, "<head>\n");
4037  if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
4038  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
4039  LIBAVFORMAT_IDENT);
4040  avio_printf(pb, "</head>\n");
4041  avio_printf(pb, "<body>\n");
4042  avio_printf(pb, "<switch>\n");
4043 
4044  mov_setup_track_ids(mov, s);
4045 
4046  for (i = 0; i < mov->nb_streams; i++) {
4047  MOVTrack *track = &mov->tracks[i];
4048  const char *type;
4049  int track_id = track->track_id;
4050  char track_name_buf[32] = { 0 };
4051 
4052  AVStream *st = track->st;
4053  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4054 
4055  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && !is_cover_image(st)) {
4056  type = "video";
4057  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4058  type = "audio";
4059  } else {
4060  continue;
4061  }
4062 
4063  props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES, NULL);
4064 
4065  if (track->par->bit_rate) {
4066  manifest_bit_rate = track->par->bit_rate;
4067  } else if (props) {
4068  manifest_bit_rate = props->max_bitrate;
4069  }
4070 
4071  avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
4072  manifest_bit_rate);
4073  param_write_int(pb, "systemBitrate", manifest_bit_rate);
4074  param_write_int(pb, "trackID", track_id);
4075  param_write_string(pb, "systemLanguage", lang ? lang->value : "und");
4076 
4077  /* Build track name piece by piece: */
4078  /* 1. track type */
4079  av_strlcat(track_name_buf, type, sizeof(track_name_buf));
4080  /* 2. track language, if available */
4081  if (lang)
4082  av_strlcatf(track_name_buf, sizeof(track_name_buf),
4083  "_%s", lang->value);
4084  /* 3. special type suffix */
4085  /* "_cc" = closed captions, "_ad" = audio_description */
4086  if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
4087  av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf));
4088  else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
4089  av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf));
4090 
4091  param_write_string(pb, "trackName", track_name_buf);
4092 
4093  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4094  if (track->par->codec_id == AV_CODEC_ID_H264) {
4095  uint8_t *ptr;
4096  int size = track->par->extradata_size;
4097  if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
4098  &size)) {
4099  param_write_hex(pb, "CodecPrivateData",
4100  ptr ? ptr : track->par->extradata,
4101  size);
4102  av_free(ptr);
4103  }
4104  param_write_string(pb, "FourCC", "H264");
4105  } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
4106  param_write_string(pb, "FourCC", "WVC1");
4107  param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4108  track->par->extradata_size);
4109  }
4110  param_write_int(pb, "MaxWidth", track->par->width);
4111  param_write_int(pb, "MaxHeight", track->par->height);
4112  param_write_int(pb, "DisplayWidth", track->par->width);
4113  param_write_int(pb, "DisplayHeight", track->par->height);
4114  } else {
4115  if (track->par->codec_id == AV_CODEC_ID_AAC) {
4116  switch (track->par->profile)
4117  {
4118  case FF_PROFILE_AAC_HE_V2:
4119  param_write_string(pb, "FourCC", "AACP");
4120  break;
4121  case FF_PROFILE_AAC_HE:
4122  param_write_string(pb, "FourCC", "AACH");
4123  break;
4124  default:
4125  param_write_string(pb, "FourCC", "AACL");
4126  }
4127  } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
4128  param_write_string(pb, "FourCC", "WMAP");
4129  }
4130  param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4131  track->par->extradata_size);
4132  param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
4133  track->par->codec_id));
4134  param_write_int(pb, "Channels", track->par->channels);
4135  param_write_int(pb, "SamplingRate", track->par->sample_rate);
4136  param_write_int(pb, "BitsPerSample", 16);
4137  param_write_int(pb, "PacketSize", track->par->block_align ?
4138  track->par->block_align : 4);
4139  }
4140  avio_printf(pb, "</%s>\n", type);
4141  }
4142  avio_printf(pb, "</switch>\n");
4143  avio_printf(pb, "</body>\n");
4144  avio_printf(pb, "</smil>\n");
4145 
4146  return update_size(pb, pos);
4147 }
4148 
4149 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
4150 {
4151  avio_wb32(pb, 16);
4152  ffio_wfourcc(pb, "mfhd");
4153  avio_wb32(pb, 0);
4154  avio_wb32(pb, mov->fragments);