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/dovi_meta.h"
55 #include "libavutil/color_utils.h"
56 #include "hevc.h"
57 #include "rtpenc.h"
58 #include "mov_chan.h"
59 #include "vpcc.h"
60 
61 static const AVOption options[] = {
62  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63  { "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" },
64  { "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 },
65  { "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" },
66  { "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" },
67  { "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" },
68  { "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" },
69  { "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" },
70  { "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" },
71  { "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" },
72  { "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" },
73  { "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" },
74  { "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" },
75  { "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" },
76  { "cmaf", "Write CMAF compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_CMAF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
77  { "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" },
78  { "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" },
79  { "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" },
80  { "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" },
81  { "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" },
82  { "prefer_icc", "If writing colr atom prioritise usage of ICC profile if it exists in stream packet side data", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_PREFER_ICC}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
83  { "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" },
84  { "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" },
85  { "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" },
86  { "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" },
87  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
88  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
89  { "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},
90  { "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},
91  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
92  { "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},
93  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
94  { "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},
95  { "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},
96  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
97  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
98  { "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},
99  { "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},
100  { "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 },
101  { "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 },
102  { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
103  { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
104  { "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},
105  { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
106  { "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"},
107  { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
108  { "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
109  { "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},
110  { NULL },
111 };
112 
113 #define MOV_CLASS(flavor)\
114 static const AVClass flavor ## _muxer_class = {\
115  .class_name = #flavor " muxer",\
116  .item_name = av_default_item_name,\
117  .option = options,\
118  .version = LIBAVUTIL_VERSION_INT,\
119 };
120 
121 static int get_moov_size(AVFormatContext *s);
122 
123 static int utf8len(const uint8_t *b)
124 {
125  int len = 0;
126  int val;
127  while (*b) {
128  GET_UTF8(val, *b++, return -1;)
129  len++;
130  }
131  return len;
132 }
133 
134 //FIXME support 64 bit variant with wide placeholders
135 static int64_t update_size(AVIOContext *pb, int64_t pos)
136 {
137  int64_t curpos = avio_tell(pb);
138  avio_seek(pb, pos, SEEK_SET);
139  avio_wb32(pb, curpos - pos); /* rewrite size */
140  avio_seek(pb, curpos, SEEK_SET);
141 
142  return curpos - pos;
143 }
144 
145 static int co64_required(const MOVTrack *track)
146 {
147  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
148  return 1;
149  return 0;
150 }
151 
152 static int is_cover_image(const AVStream *st)
153 {
154  /* Eg. AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS
155  * is encoded as sparse video track */
156  return st && st->disposition == AV_DISPOSITION_ATTACHED_PIC;
157 }
158 
159 static int rtp_hinting_needed(const AVStream *st)
160 {
161  /* Add hint tracks for each real audio and video stream */
162  if (is_cover_image(st))
163  return 0;
164  return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
165  st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
166 }
167 
168 /* Chunk offset atom */
169 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
170 {
171  int i;
172  int mode64 = co64_required(track); // use 32 bit size variant if possible
173  int64_t pos = avio_tell(pb);
174  avio_wb32(pb, 0); /* size */
175  if (mode64)
176  ffio_wfourcc(pb, "co64");
177  else
178  ffio_wfourcc(pb, "stco");
179  avio_wb32(pb, 0); /* version & flags */
180  avio_wb32(pb, track->chunkCount); /* entry count */
181  for (i = 0; i < track->entry; i++) {
182  if (!track->cluster[i].chunkNum)
183  continue;
184  if (mode64 == 1)
185  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
186  else
187  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
188  }
189  return update_size(pb, pos);
190 }
191 
192 /* Sample size atom */
193 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
194 {
195  int equalChunks = 1;
196  int i, j, entries = 0, tst = -1, oldtst = -1;
197 
198  int64_t pos = avio_tell(pb);
199  avio_wb32(pb, 0); /* size */
200  ffio_wfourcc(pb, "stsz");
201  avio_wb32(pb, 0); /* version & flags */
202 
203  for (i = 0; i < track->entry; i++) {
204  tst = track->cluster[i].size / track->cluster[i].entries;
205  if (oldtst != -1 && tst != oldtst)
206  equalChunks = 0;
207  oldtst = tst;
208  entries += track->cluster[i].entries;
209  }
210  if (equalChunks && track->entry) {
211  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
212  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
213  avio_wb32(pb, sSize); // sample size
214  avio_wb32(pb, entries); // sample count
215  } else {
216  avio_wb32(pb, 0); // sample size
217  avio_wb32(pb, entries); // sample count
218  for (i = 0; i < track->entry; i++) {
219  for (j = 0; j < track->cluster[i].entries; j++) {
220  avio_wb32(pb, track->cluster[i].size /
221  track->cluster[i].entries);
222  }
223  }
224  }
225  return update_size(pb, pos);
226 }
227 
228 /* Sample to chunk atom */
229 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
230 {
231  int index = 0, oldval = -1, i;
232  int64_t entryPos, curpos;
233 
234  int64_t pos = avio_tell(pb);
235  avio_wb32(pb, 0); /* size */
236  ffio_wfourcc(pb, "stsc");
237  avio_wb32(pb, 0); // version & flags
238  entryPos = avio_tell(pb);
239  avio_wb32(pb, track->chunkCount); // entry count
240  for (i = 0; i < track->entry; i++) {
241  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
242  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
243  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
244  avio_wb32(pb, 0x1); // sample description index
245  oldval = track->cluster[i].samples_in_chunk;
246  index++;
247  }
248  }
249  curpos = avio_tell(pb);
250  avio_seek(pb, entryPos, SEEK_SET);
251  avio_wb32(pb, index); // rewrite size
252  avio_seek(pb, curpos, SEEK_SET);
253 
254  return update_size(pb, pos);
255 }
256 
257 /* Sync sample atom */
258 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
259 {
260  int64_t curpos, entryPos;
261  int i, index = 0;
262  int64_t pos = avio_tell(pb);
263  avio_wb32(pb, 0); // size
264  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
265  avio_wb32(pb, 0); // version & flags
266  entryPos = avio_tell(pb);
267  avio_wb32(pb, track->entry); // entry count
268  for (i = 0; i < track->entry; i++) {
269  if (track->cluster[i].flags & flag) {
270  avio_wb32(pb, i + 1);
271  index++;
272  }
273  }
274  curpos = avio_tell(pb);
275  avio_seek(pb, entryPos, SEEK_SET);
276  avio_wb32(pb, index); // rewrite size
277  avio_seek(pb, curpos, SEEK_SET);
278  return update_size(pb, pos);
279 }
280 
281 /* Sample dependency atom */
282 static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track)
283 {
284  int i;
285  uint8_t leading, dependent, reference, redundancy;
286  int64_t pos = avio_tell(pb);
287  avio_wb32(pb, 0); // size
288  ffio_wfourcc(pb, "sdtp");
289  avio_wb32(pb, 0); // version & flags
290  for (i = 0; i < track->entry; i++) {
291  dependent = MOV_SAMPLE_DEPENDENCY_YES;
292  leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN;
293  if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) {
294  reference = MOV_SAMPLE_DEPENDENCY_NO;
295  }
296  if (track->cluster[i].flags & MOV_SYNC_SAMPLE) {
297  dependent = MOV_SAMPLE_DEPENDENCY_NO;
298  }
299  avio_w8(pb, (leading << 6) | (dependent << 4) |
300  (reference << 2) | redundancy);
301  }
302  return update_size(pb, pos);
303 }
304 
305 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
306 {
307  avio_wb32(pb, 0x11); /* size */
308  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
309  else ffio_wfourcc(pb, "damr");
310  ffio_wfourcc(pb, "FFMP");
311  avio_w8(pb, 0); /* decoder version */
312 
313  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
314  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
315  avio_w8(pb, 0x01); /* Frames per sample */
316  return 0x11;
317 }
318 
319 static int mov_write_ac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
320 {
321  GetBitContext gbc;
322  PutBitContext pbc;
323  uint8_t buf[3];
324  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
325 
326  if (track->vos_len < 7) {
327  av_log(s, AV_LOG_ERROR,
328  "Cannot write moov atom before AC3 packets."
329  " Set the delay_moov flag to fix this.\n");
330  return AVERROR(EINVAL);
331  }
332 
333  avio_wb32(pb, 11);
334  ffio_wfourcc(pb, "dac3");
335 
336  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
337  fscod = get_bits(&gbc, 2);
338  frmsizecod = get_bits(&gbc, 6);
339  bsid = get_bits(&gbc, 5);
340  bsmod = get_bits(&gbc, 3);
341  acmod = get_bits(&gbc, 3);
342  if (acmod == 2) {
343  skip_bits(&gbc, 2); // dsurmod
344  } else {
345  if ((acmod & 1) && acmod != 1)
346  skip_bits(&gbc, 2); // cmixlev
347  if (acmod & 4)
348  skip_bits(&gbc, 2); // surmixlev
349  }
350  lfeon = get_bits1(&gbc);
351 
352  init_put_bits(&pbc, buf, sizeof(buf));
353  put_bits(&pbc, 2, fscod);
354  put_bits(&pbc, 5, bsid);
355  put_bits(&pbc, 3, bsmod);
356  put_bits(&pbc, 3, acmod);
357  put_bits(&pbc, 1, lfeon);
358  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
359  put_bits(&pbc, 5, 0); // reserved
360 
361  flush_put_bits(&pbc);
362  avio_write(pb, buf, sizeof(buf));
363 
364  return 11;
365 }
366 
367 struct eac3_info {
368  AVPacket pkt;
369  uint8_t ec3_done;
370  uint8_t num_blocks;
371 
372  /* Layout of the EC3SpecificBox */
373  /* maximum bitrate */
374  uint16_t data_rate;
375  /* number of independent substreams */
376  uint8_t num_ind_sub;
377  struct {
378  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
379  uint8_t fscod;
380  /* bit stream identification 5 bits */
381  uint8_t bsid;
382  /* one bit reserved */
383  /* audio service mixing (not supported yet) 1 bit */
384  /* bit stream mode 3 bits */
385  uint8_t bsmod;
386  /* audio coding mode 3 bits */
387  uint8_t acmod;
388  /* sub woofer on 1 bit */
389  uint8_t lfeon;
390  /* 3 bits reserved */
391  /* number of dependent substreams associated with this substream 4 bits */
392  uint8_t num_dep_sub;
393  /* channel locations of the dependent substream(s), if any, 9 bits */
394  uint16_t chan_loc;
395  /* if there is no dependent substream, then one bit reserved instead */
396  } substream[1]; /* TODO: support 8 independent substreams */
397 };
398 
399 #if CONFIG_AC3_PARSER
400 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
401 {
402  AC3HeaderInfo *hdr = NULL;
403  struct eac3_info *info;
404  int num_blocks, ret;
405 
406  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
407  return AVERROR(ENOMEM);
408  info = track->eac3_priv;
409 
410  if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) < 0) {
411  /* drop the packets until we see a good one */
412  if (!track->entry) {
413  av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
414  ret = 0;
415  } else
416  ret = AVERROR_INVALIDDATA;
417  goto end;
418  }
419 
420  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
421  num_blocks = hdr->num_blocks;
422 
423  if (!info->ec3_done) {
424  /* AC-3 substream must be the first one */
425  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) {
426  ret = AVERROR(EINVAL);
427  goto end;
428  }
429 
430  /* this should always be the case, given that our AC-3 parser
431  * concatenates dependent frames to their independent parent */
432  if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
433  /* substream ids must be incremental */
434  if (hdr->substreamid > info->num_ind_sub + 1) {
435  ret = AVERROR(EINVAL);
436  goto end;
437  }
438 
439  if (hdr->substreamid == info->num_ind_sub + 1) {
440  //info->num_ind_sub++;
441  avpriv_request_sample(mov->fc, "Multiple independent substreams");
442  ret = AVERROR_PATCHWELCOME;
443  goto end;
444  } else if (hdr->substreamid < info->num_ind_sub ||
445  hdr->substreamid == 0 && info->substream[0].bsid) {
446  info->ec3_done = 1;
447  goto concatenate;
448  }
449  } else {
450  if (hdr->substreamid != 0) {
451  avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
452  ret = AVERROR_PATCHWELCOME;
453  goto end;
454  }
455  }
456 
457  /* fill the info needed for the "dec3" atom */
458  info->substream[hdr->substreamid].fscod = hdr->sr_code;
459  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
460  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
461  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
462  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
463 
464  /* Parse dependent substream(s), if any */
465  if (pkt->size != hdr->frame_size) {
466  int cumul_size = hdr->frame_size;
467  int parent = hdr->substreamid;
468 
469  while (cumul_size != pkt->size) {
470  GetBitContext gbc;
471  int i;
472  ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size);
473  if (ret < 0)
474  goto end;
475  if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT) {
476  ret = AVERROR(EINVAL);
477  goto end;
478  }
479  info->substream[parent].num_dep_sub++;
480  ret /= 8;
481 
482  /* header is parsed up to lfeon, but custom channel map may be needed */
483  init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret);
484  /* skip bsid */
485  skip_bits(&gbc, 5);
486  /* skip volume control params */
487  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
488  skip_bits(&gbc, 5); // skip dialog normalization
489  if (get_bits1(&gbc)) {
490  skip_bits(&gbc, 8); // skip compression gain word
491  }
492  }
493  /* get the dependent stream channel map, if exists */
494  if (get_bits1(&gbc))
495  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
496  else
497  info->substream[parent].chan_loc |= hdr->channel_mode;
498  cumul_size += hdr->frame_size;
499  }
500  }
501  }
502 
503 concatenate:
504  if (!info->num_blocks && num_blocks == 6) {
505  ret = pkt->size;
506  goto end;
507  }
508  else if (info->num_blocks + num_blocks > 6) {
509  ret = AVERROR_INVALIDDATA;
510  goto end;
511  }
512 
513  if (!info->num_blocks) {
514  ret = av_packet_ref(&info->pkt, pkt);
515  if (!ret)
516  info->num_blocks = num_blocks;
517  goto end;
518  } else {
519  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
520  goto end;
521  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
522  info->num_blocks += num_blocks;
523  info->pkt.duration += pkt->duration;
524  if (info->num_blocks != 6)
525  goto end;
526  av_packet_unref(pkt);
527  av_packet_move_ref(pkt, &info->pkt);
528  info->num_blocks = 0;
529  }
530  ret = pkt->size;
531 
532 end:
533  av_free(hdr);
534 
535  return ret;
536 }
537 #endif
538 
539 static int mov_write_eac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
540 {
541  PutBitContext pbc;
542  uint8_t *buf;
543  struct eac3_info *info;
544  int size, i;
545 
546  if (!track->eac3_priv) {
547  av_log(s, AV_LOG_ERROR,
548  "Cannot write moov atom before EAC3 packets parsed.\n");
549  return AVERROR(EINVAL);
550  }
551 
552  info = track->eac3_priv;
553  size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
554  buf = av_malloc(size);
555  if (!buf) {
556  return AVERROR(ENOMEM);
557  }
558 
559  init_put_bits(&pbc, buf, size);
560  put_bits(&pbc, 13, info->data_rate);
561  put_bits(&pbc, 3, info->num_ind_sub);
562  for (i = 0; i <= info->num_ind_sub; i++) {
563  put_bits(&pbc, 2, info->substream[i].fscod);
564  put_bits(&pbc, 5, info->substream[i].bsid);
565  put_bits(&pbc, 1, 0); /* reserved */
566  put_bits(&pbc, 1, 0); /* asvc */
567  put_bits(&pbc, 3, info->substream[i].bsmod);
568  put_bits(&pbc, 3, info->substream[i].acmod);
569  put_bits(&pbc, 1, info->substream[i].lfeon);
570  put_bits(&pbc, 5, 0); /* reserved */
571  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
572  if (!info->substream[i].num_dep_sub) {
573  put_bits(&pbc, 1, 0); /* reserved */
574  } else {
575  put_bits(&pbc, 9, info->substream[i].chan_loc);
576  }
577  }
578  flush_put_bits(&pbc);
579  size = put_bits_count(&pbc) >> 3;
580 
581  avio_wb32(pb, size + 8);
582  ffio_wfourcc(pb, "dec3");
583  avio_write(pb, buf, size);
584 
585  av_free(buf);
586 
587  return size;
588 }
589 
590 /**
591  * This function writes extradata "as is".
592  * Extradata must be formatted like a valid atom (with size and tag).
593  */
594 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
595 {
596  avio_write(pb, track->par->extradata, track->par->extradata_size);
597  return track->par->extradata_size;
598 }
599 
600 static int mov_write_enda_tag(AVIOContext *pb)
601 {
602  avio_wb32(pb, 10);
603  ffio_wfourcc(pb, "enda");
604  avio_wb16(pb, 1); /* little endian */
605  return 10;
606 }
607 
608 static int mov_write_enda_tag_be(AVIOContext *pb)
609 {
610  avio_wb32(pb, 10);
611  ffio_wfourcc(pb, "enda");
612  avio_wb16(pb, 0); /* big endian */
613  return 10;
614 }
615 
616 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
617 {
618  int i = 3;
619  avio_w8(pb, tag);
620  for (; i > 0; i--)
621  avio_w8(pb, (size >> (7 * i)) | 0x80);
622  avio_w8(pb, size & 0x7F);
623 }
624 
625 static unsigned compute_avg_bitrate(MOVTrack *track)
626 {
627  uint64_t size = 0;
628  int i;
629  if (!track->track_duration)
630  return 0;
631  for (i = 0; i < track->entry; i++)
632  size += track->cluster[i].size;
633  return size * 8 * track->timescale / track->track_duration;
634 }
635 
636 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
637 {
638  AVCPBProperties *props;
639  int64_t pos = avio_tell(pb);
640  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
641  unsigned avg_bitrate;
642 
643  avio_wb32(pb, 0); // size
644  ffio_wfourcc(pb, "esds");
645  avio_wb32(pb, 0); // Version
646 
647  // ES descriptor
648  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
649  avio_wb16(pb, track->track_id);
650  avio_w8(pb, 0x00); // flags (= no flags)
651 
652  // DecoderConfig descriptor
653  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
654 
655  // Object type indication
656  if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
657  track->par->codec_id == AV_CODEC_ID_MP3) &&
658  track->par->sample_rate > 24000)
659  avio_w8(pb, 0x6B); // 11172-3
660  else
661  avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
662 
663  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
664  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
665  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
666  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
667  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
668  avio_w8(pb, 0x15); // flags (= Audiostream)
669  else
670  avio_w8(pb, 0x11); // flags (= Visualstream)
671 
672  props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
673  NULL);
674 
675  avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
676 
677  avg_bitrate = compute_avg_bitrate(track);
678  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)
679  avio_wb32(pb, avg_bitrate);
680 
681  if (track->vos_len) {
682  // DecoderSpecific info descriptor
683  put_descr(pb, 0x05, track->vos_len);
684  avio_write(pb, track->vos_data, track->vos_len);
685  }
686 
687  // SL descriptor
688  put_descr(pb, 0x06, 1);
689  avio_w8(pb, 0x02);
690  return update_size(pb, pos);
691 }
692 
693 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
694 {
695  return codec_id == AV_CODEC_ID_PCM_S24LE ||
696  codec_id == AV_CODEC_ID_PCM_S32LE ||
697  codec_id == AV_CODEC_ID_PCM_F32LE ||
698  codec_id == AV_CODEC_ID_PCM_F64LE;
699 }
700 
701 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
702 {
703  return codec_id == AV_CODEC_ID_PCM_S24BE ||
704  codec_id == AV_CODEC_ID_PCM_S32BE ||
705  codec_id == AV_CODEC_ID_PCM_F32BE ||
706  codec_id == AV_CODEC_ID_PCM_F64BE;
707 }
708 
709 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
710 {
711  int ret;
712  int64_t pos = avio_tell(pb);
713  avio_wb32(pb, 0);
714  avio_wl32(pb, track->tag); // store it byteswapped
715  track->par->codec_tag = av_bswap16(track->tag >> 16);
716  if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
717  return ret;
718  return update_size(pb, pos);
719 }
720 
721 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
722 {
723  int ret;
724  int64_t pos = avio_tell(pb);
725  avio_wb32(pb, 0);
726  ffio_wfourcc(pb, "wfex");
727  if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
728  return ret;
729  return update_size(pb, pos);
730 }
731 
732 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
733 {
734  int64_t pos = avio_tell(pb);
735  avio_wb32(pb, 0);
736  ffio_wfourcc(pb, "dfLa");
737  avio_w8(pb, 0); /* version */
738  avio_wb24(pb, 0); /* flags */
739 
740  /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
741  if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
742  return AVERROR_INVALIDDATA;
743 
744  /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
745  avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
746  avio_wb24(pb, track->par->extradata_size); /* Length */
747  avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
748 
749  return update_size(pb, pos);
750 }
751 
752 static int mov_write_dops_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
753 {
754  int64_t pos = avio_tell(pb);
755  avio_wb32(pb, 0);
756  ffio_wfourcc(pb, "dOps");
757  avio_w8(pb, 0); /* Version */
758  if (track->par->extradata_size < 19) {
759  av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
760  return AVERROR_INVALIDDATA;
761  }
762  /* extradata contains an Ogg OpusHead, other than byte-ordering and
763  OpusHead's preceeding magic/version, OpusSpecificBox is currently
764  identical. */
765  avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
766  avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
767  avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
768  avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
769  /* Write the rest of the header out without byte-swapping. */
770  avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 18);
771 
772  return update_size(pb, pos);
773 }
774 
775 static int mov_write_dmlp_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
776 {
777  int64_t pos = avio_tell(pb);
778  int length;
779  avio_wb32(pb, 0);
780  ffio_wfourcc(pb, "dmlp");
781 
782  if (track->vos_len < 20) {
783  av_log(s, AV_LOG_ERROR,
784  "Cannot write moov atom before TrueHD packets."
785  " Set the delay_moov flag to fix this.\n");
786  return AVERROR(EINVAL);
787  }
788 
789  length = (AV_RB16(track->vos_data) & 0xFFF) * 2;
790  if (length < 20 || length > track->vos_len)
791  return AVERROR_INVALIDDATA;
792 
793  // Only TrueHD is supported
794  if (AV_RB32(track->vos_data + 4) != 0xF8726FBA)
795  return AVERROR_INVALIDDATA;
796 
797  avio_wb32(pb, AV_RB32(track->vos_data + 8)); /* format_info */
798  avio_wb16(pb, AV_RB16(track->vos_data + 18) << 1); /* peak_data_rate */
799  avio_wb32(pb, 0); /* reserved */
800 
801  return update_size(pb, pos);
802 }
803 
804 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
805 {
806  uint32_t layout_tag, bitmap;
807  int64_t pos = avio_tell(pb);
808 
809  layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
810  track->par->channel_layout,
811  &bitmap);
812  if (!layout_tag) {
813  av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
814  "lack of channel information\n");
815  return 0;
816  }
817 
818  if (track->multichannel_as_mono)
819  return 0;
820 
821  avio_wb32(pb, 0); // Size
822  ffio_wfourcc(pb, "chan"); // Type
823  avio_w8(pb, 0); // Version
824  avio_wb24(pb, 0); // Flags
825  avio_wb32(pb, layout_tag); // mChannelLayoutTag
826  avio_wb32(pb, bitmap); // mChannelBitmap
827  avio_wb32(pb, 0); // mNumberChannelDescriptions
828 
829  return update_size(pb, pos);
830 }
831 
832 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
833 {
834  int64_t pos = avio_tell(pb);
835 
836  avio_wb32(pb, 0); /* size */
837  ffio_wfourcc(pb, "wave");
838 
839  if (track->par->codec_id != AV_CODEC_ID_QDM2) {
840  avio_wb32(pb, 12); /* size */
841  ffio_wfourcc(pb, "frma");
842  avio_wl32(pb, track->tag);
843  }
844 
845  if (track->par->codec_id == AV_CODEC_ID_AAC) {
846  /* useless atom needed by mplayer, ipod, not needed by quicktime */
847  avio_wb32(pb, 12); /* size */
848  ffio_wfourcc(pb, "mp4a");
849  avio_wb32(pb, 0);
850  mov_write_esds_tag(pb, track);
851  } else if (mov_pcm_le_gt16(track->par->codec_id)) {
852  mov_write_enda_tag(pb);
853  } else if (mov_pcm_be_gt16(track->par->codec_id)) {
854  mov_write_enda_tag_be(pb);
855  } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
856  mov_write_amr_tag(pb, track);
857  } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
858  mov_write_ac3_tag(s, pb, track);
859  } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
860  mov_write_eac3_tag(s, pb, track);
861  } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
862  track->par->codec_id == AV_CODEC_ID_QDM2) {
863  mov_write_extradata_tag(pb, track);
864  } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
865  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
866  mov_write_ms_tag(s, pb, track);
867  }
868 
869  avio_wb32(pb, 8); /* size */
870  avio_wb32(pb, 0); /* null tag */
871 
872  return update_size(pb, pos);
873 }
874 
875 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
876 {
877  uint8_t *unescaped;
878  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
879  int unescaped_size, seq_found = 0;
880  int level = 0, interlace = 0;
881  int packet_seq = track->vc1_info.packet_seq;
882  int packet_entry = track->vc1_info.packet_entry;
883  int slices = track->vc1_info.slices;
884  PutBitContext pbc;
885 
886  if (track->start_dts == AV_NOPTS_VALUE) {
887  /* No packets written yet, vc1_info isn't authoritative yet. */
888  /* Assume inline sequence and entry headers. */
889  packet_seq = packet_entry = 1;
890  av_log(NULL, AV_LOG_WARNING,
891  "moov atom written before any packets, unable to write correct "
892  "dvc1 atom. Set the delay_moov flag to fix this.\n");
893  }
894 
895  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
896  if (!unescaped)
897  return AVERROR(ENOMEM);
898  start = find_next_marker(track->vos_data, end);
899  for (next = start; next < end; start = next) {
900  GetBitContext gb;
901  int size;
902  next = find_next_marker(start + 4, end);
903  size = next - start - 4;
904  if (size <= 0)
905  continue;
906  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
907  init_get_bits(&gb, unescaped, 8 * unescaped_size);
908  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
909  int profile = get_bits(&gb, 2);
910  if (profile != PROFILE_ADVANCED) {
911  av_free(unescaped);
912  return AVERROR(ENOSYS);
913  }
914  seq_found = 1;
915  level = get_bits(&gb, 3);
916  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
917  * width, height */
918  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
919  skip_bits(&gb, 1); /* broadcast */
920  interlace = get_bits1(&gb);
921  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
922  }
923  }
924  if (!seq_found) {
925  av_free(unescaped);
926  return AVERROR(ENOSYS);
927  }
928 
929  init_put_bits(&pbc, buf, 7);
930  /* VC1DecSpecStruc */
931  put_bits(&pbc, 4, 12); /* profile - advanced */
932  put_bits(&pbc, 3, level);
933  put_bits(&pbc, 1, 0); /* reserved */
934  /* VC1AdvDecSpecStruc */
935  put_bits(&pbc, 3, level);
936  put_bits(&pbc, 1, 0); /* cbr */
937  put_bits(&pbc, 6, 0); /* reserved */
938  put_bits(&pbc, 1, !interlace); /* no interlace */
939  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
940  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
941  put_bits(&pbc, 1, !slices); /* no slice code */
942  put_bits(&pbc, 1, 0); /* no bframe */
943  put_bits(&pbc, 1, 0); /* reserved */
944 
945  /* framerate */
946  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
947  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
948  else
949  put_bits32(&pbc, 0xffffffff);
950 
951  flush_put_bits(&pbc);
952 
953  av_free(unescaped);
954 
955  return 0;
956 }
957 
958 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
959 {
960  uint8_t buf[7] = { 0 };
961  int ret;
962 
963  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
964  return ret;
965 
966  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
967  ffio_wfourcc(pb, "dvc1");
968  avio_write(pb, buf, sizeof(buf));
969  avio_write(pb, track->vos_data, track->vos_len);
970 
971  return 0;
972 }
973 
974 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
975 {
976  avio_wb32(pb, track->vos_len + 8);
977  ffio_wfourcc(pb, "glbl");
978  avio_write(pb, track->vos_data, track->vos_len);
979  return 8 + track->vos_len;
980 }
981 
982 /**
983  * Compute flags for 'lpcm' tag.
984  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
985  */
986 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
987 {
988  switch (codec_id) {
989  case AV_CODEC_ID_PCM_F32BE:
990  case AV_CODEC_ID_PCM_F64BE:
991  return 11;
992  case AV_CODEC_ID_PCM_F32LE:
993  case AV_CODEC_ID_PCM_F64LE:
994  return 9;
995  case AV_CODEC_ID_PCM_U8:
996  return 10;
997  case AV_CODEC_ID_PCM_S16BE:
998  case AV_CODEC_ID_PCM_S24BE:
999  case AV_CODEC_ID_PCM_S32BE:
1000  return 14;
1001  case AV_CODEC_ID_PCM_S8:
1002  case AV_CODEC_ID_PCM_S16LE:
1003  case AV_CODEC_ID_PCM_S24LE:
1004  case AV_CODEC_ID_PCM_S32LE:
1005  return 12;
1006  default:
1007  return 0;
1008  }
1009 }
1010 
1011 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
1012 {
1013  int64_t next_dts;
1014 
1015  if (cluster_idx >= track->entry)
1016  return 0;
1017 
1018  if (cluster_idx + 1 == track->entry)
1019  next_dts = track->track_duration + track->start_dts;
1020  else
1021  next_dts = track->cluster[cluster_idx + 1].dts;
1022 
1023  next_dts -= track->cluster[cluster_idx].dts;
1024 
1025  av_assert0(next_dts >= 0);
1026  av_assert0(next_dts <= INT_MAX);
1027 
1028  return next_dts;
1029 }
1030 
1031 static int get_samples_per_packet(MOVTrack *track)
1032 {
1033  int i, first_duration;
1034 
1035 // return track->par->frame_size;
1036 
1037  /* use 1 for raw PCM */
1038  if (!track->audio_vbr)
1039  return 1;
1040 
1041  /* check to see if duration is constant for all clusters */
1042  if (!track->entry)
1043  return 0;
1044  first_duration = get_cluster_duration(track, 0);
1045  for (i = 1; i < track->entry; i++) {
1046  if (get_cluster_duration(track, i) != first_duration)
1047  return 0;
1048  }
1049  return first_duration;
1050 }
1051 
1052 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1053 {
1054  int64_t pos = avio_tell(pb);
1055  int version = 0;
1056  uint32_t tag = track->tag;
1057  int ret = 0;
1058 
1059  if (track->mode == MODE_MOV) {
1060  if (track->timescale > UINT16_MAX || !track->par->channels) {
1061  if (mov_get_lpcm_flags(track->par->codec_id))
1062  tag = AV_RL32("lpcm");
1063  version = 2;
1064  } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1065  mov_pcm_be_gt16(track->par->codec_id) ||
1066  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1067  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1068  track->par->codec_id == AV_CODEC_ID_QDM2) {
1069  version = 1;
1070  }
1071  }
1072 
1073  avio_wb32(pb, 0); /* size */
1074  if (mov->encryption_scheme != MOV_ENC_NONE) {
1075  ffio_wfourcc(pb, "enca");
1076  } else {
1077  avio_wl32(pb, tag); // store it byteswapped
1078  }
1079  avio_wb32(pb, 0); /* Reserved */
1080  avio_wb16(pb, 0); /* Reserved */
1081  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1082 
1083  /* SoundDescription */
1084  avio_wb16(pb, version); /* Version */
1085  avio_wb16(pb, 0); /* Revision level */
1086  avio_wb32(pb, 0); /* Reserved */
1087 
1088  if (version == 2) {
1089  avio_wb16(pb, 3);
1090  avio_wb16(pb, 16);
1091  avio_wb16(pb, 0xfffe);
1092  avio_wb16(pb, 0);
1093  avio_wb32(pb, 0x00010000);
1094  avio_wb32(pb, 72);
1095  avio_wb64(pb, av_double2int(track->par->sample_rate));
1096  avio_wb32(pb, track->par->channels);
1097  avio_wb32(pb, 0x7F000000);
1098  avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
1099  avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1100  avio_wb32(pb, track->sample_size);
1101  avio_wb32(pb, get_samples_per_packet(track));
1102  } else {
1103  if (track->mode == MODE_MOV) {
1104  avio_wb16(pb, track->par->channels);
1105  if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1106  track->par->codec_id == AV_CODEC_ID_PCM_S8)
1107  avio_wb16(pb, 8); /* bits per sample */
1108  else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1109  avio_wb16(pb, track->par->bits_per_coded_sample);
1110  else
1111  avio_wb16(pb, 16);
1112  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1113  } else { /* reserved for mp4/3gp */
1114  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1115  track->par->codec_id == AV_CODEC_ID_ALAC ||
1116  track->par->codec_id == AV_CODEC_ID_OPUS) {
1117  avio_wb16(pb, track->par->channels);
1118  } else {
1119  avio_wb16(pb, 2);
1120  }
1121  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1122  track->par->codec_id == AV_CODEC_ID_ALAC) {
1123  avio_wb16(pb, track->par->bits_per_raw_sample);
1124  } else {
1125  avio_wb16(pb, 16);
1126  }
1127  avio_wb16(pb, 0);
1128  }
1129 
1130  avio_wb16(pb, 0); /* packet size (= 0) */
1131  if (track->par->codec_id == AV_CODEC_ID_OPUS)
1132  avio_wb16(pb, 48000);
1133  else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1134  avio_wb32(pb, track->par->sample_rate);
1135  else
1136  avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1137  track->par->sample_rate : 0);
1138 
1139  if (track->par->codec_id != AV_CODEC_ID_TRUEHD)
1140  avio_wb16(pb, 0); /* Reserved */
1141  }
1142 
1143  if (version == 1) { /* SoundDescription V1 extended info */
1144  if (mov_pcm_le_gt16(track->par->codec_id) ||
1145  mov_pcm_be_gt16(track->par->codec_id))
1146  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1147  else
1148  avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1149  avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1150  avio_wb32(pb, track->sample_size); /* Bytes per frame */
1151  avio_wb32(pb, 2); /* Bytes per sample */
1152  }
1153 
1154  if (track->mode == MODE_MOV &&
1155  (track->par->codec_id == AV_CODEC_ID_AAC ||
1156  track->par->codec_id == AV_CODEC_ID_AC3 ||
1157  track->par->codec_id == AV_CODEC_ID_EAC3 ||
1158  track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1159  track->par->codec_id == AV_CODEC_ID_ALAC ||
1160  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1161  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1162  track->par->codec_id == AV_CODEC_ID_QDM2 ||
1163  (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1164  (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1165  ret = mov_write_wave_tag(s, pb, track);
1166  else if (track->tag == MKTAG('m','p','4','a'))
1167  ret = mov_write_esds_tag(pb, track);
1168  else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1169  ret = mov_write_amr_tag(pb, track);
1170  else if (track->par->codec_id == AV_CODEC_ID_AC3)
1171  ret = mov_write_ac3_tag(s, pb, track);
1172  else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1173  ret = mov_write_eac3_tag(s, pb, track);
1174  else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1175  ret = mov_write_extradata_tag(pb, track);
1176  else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1177  ret = mov_write_wfex_tag(s, pb, track);
1178  else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1179  ret = mov_write_dfla_tag(pb, track);
1180  else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1181  ret = mov_write_dops_tag(s, pb, track);
1182  else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1183  ret = mov_write_dmlp_tag(s, pb, track);
1184  else if (track->vos_len > 0)
1185  ret = mov_write_glbl_tag(pb, track);
1186 
1187  if (ret < 0)
1188  return ret;
1189 
1190  if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1191  && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1192  return ret;
1193  }
1194 
1195  if (mov->encryption_scheme != MOV_ENC_NONE
1196  && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1197  return ret;
1198  }
1199 
1200  ret = update_size(pb, pos);
1201  return ret;
1202 }
1203 
1204 static int mov_write_d263_tag(AVIOContext *pb)
1205 {
1206  avio_wb32(pb, 0xf); /* size */
1207  ffio_wfourcc(pb, "d263");
1208  ffio_wfourcc(pb, "FFMP");
1209  avio_w8(pb, 0); /* decoder version */
1210  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1211  avio_w8(pb, 0xa); /* level */
1212  avio_w8(pb, 0); /* profile */
1213  return 0xf;
1214 }
1215 
1216 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1217 {
1218  int64_t pos = avio_tell(pb);
1219 
1220  avio_wb32(pb, 0);
1221  ffio_wfourcc(pb, "av1C");
1222  ff_isom_write_av1c(pb, track->vos_data, track->vos_len);
1223  return update_size(pb, pos);
1224 }
1225 
1226 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1227 {
1228  int64_t pos = avio_tell(pb);
1229 
1230  avio_wb32(pb, 0);
1231  ffio_wfourcc(pb, "avcC");
1232  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1233  return update_size(pb, pos);
1234 }
1235 
1236 static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1237 {
1238  int64_t pos = avio_tell(pb);
1239 
1240  avio_wb32(pb, 0);
1241  ffio_wfourcc(pb, "vpcC");
1242  avio_w8(pb, 1); /* version */
1243  avio_wb24(pb, 0); /* flags */
1244  ff_isom_write_vpcc(s, pb, track->par);
1245  return update_size(pb, pos);
1246 }
1247 
1248 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1249 {
1250  int64_t pos = avio_tell(pb);
1251 
1252  avio_wb32(pb, 0);
1253  ffio_wfourcc(pb, "hvcC");
1254  if (track->tag == MKTAG('h','v','c','1'))
1255  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1256  else
1257  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1258  return update_size(pb, pos);
1259 }
1260 
1261 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1262 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1263 {
1264  int i;
1265  int interlaced;
1266  int cid;
1267  int display_width = track->par->width;
1268 
1269  if (track->vos_data && track->vos_len > 0x29) {
1270  if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1271  /* looks like a DNxHD bit stream */
1272  interlaced = (track->vos_data[5] & 2);
1273  cid = AV_RB32(track->vos_data + 0x28);
1274  } else {
1275  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1276  return 0;
1277  }
1278  } else {
1279  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1280  return 0;
1281  }
1282 
1283  avio_wb32(pb, 24); /* size */
1284  ffio_wfourcc(pb, "ACLR");
1285  ffio_wfourcc(pb, "ACLR");
1286  ffio_wfourcc(pb, "0001");
1287  if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1288  track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1289  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1290  } else { /* Full range (0-255) */
1291  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1292  }
1293  avio_wb32(pb, 0); /* unknown */
1294 
1295  if (track->tag == MKTAG('A','V','d','h')) {
1296  avio_wb32(pb, 32);
1297  ffio_wfourcc(pb, "ADHR");
1298  ffio_wfourcc(pb, "0001");
1299  avio_wb32(pb, cid);
1300  avio_wb32(pb, 0); /* unknown */
1301  avio_wb32(pb, 1); /* unknown */
1302  avio_wb32(pb, 0); /* unknown */
1303  avio_wb32(pb, 0); /* unknown */
1304  return 0;
1305  }
1306 
1307  avio_wb32(pb, 24); /* size */
1308  ffio_wfourcc(pb, "APRG");
1309  ffio_wfourcc(pb, "APRG");
1310  ffio_wfourcc(pb, "0001");
1311  avio_wb32(pb, 1); /* unknown */
1312  avio_wb32(pb, 0); /* unknown */
1313 
1314  avio_wb32(pb, 120); /* size */
1315  ffio_wfourcc(pb, "ARES");
1316  ffio_wfourcc(pb, "ARES");
1317  ffio_wfourcc(pb, "0001");
1318  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1319  if ( track->par->sample_aspect_ratio.num > 0
1320  && track->par->sample_aspect_ratio.den > 0)
1321  display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1322  avio_wb32(pb, display_width);
1323  /* values below are based on samples created with quicktime and avid codecs */
1324  if (interlaced) {
1325  avio_wb32(pb, track->par->height / 2);
1326  avio_wb32(pb, 2); /* unknown */
1327  avio_wb32(pb, 0); /* unknown */
1328  avio_wb32(pb, 4); /* unknown */
1329  } else {
1330  avio_wb32(pb, track->par->height);
1331  avio_wb32(pb, 1); /* unknown */
1332  avio_wb32(pb, 0); /* unknown */
1333  if (track->par->height == 1080)
1334  avio_wb32(pb, 5); /* unknown */
1335  else
1336  avio_wb32(pb, 6); /* unknown */
1337  }
1338  /* padding */
1339  for (i = 0; i < 10; i++)
1340  avio_wb64(pb, 0);
1341 
1342  return 0;
1343 }
1344 
1345 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1346 {
1347  avio_wb32(pb, 12);
1348  ffio_wfourcc(pb, "DpxE");
1349  if (track->par->extradata_size >= 12 &&
1350  !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1351  avio_wb32(pb, track->par->extradata[11]);
1352  } else {
1353  avio_wb32(pb, 1);
1354  }
1355  return 0;
1356 }
1357 
1358 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1359 {
1360  int tag;
1361 
1362  if (track->par->width == 720) { /* SD */
1363  if (track->par->height == 480) { /* NTSC */
1364  if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1365  else tag = MKTAG('d','v','c',' ');
1366  }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1367  else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1368  else tag = MKTAG('d','v','p','p');
1369  } else if (track->par->height == 720) { /* HD 720 line */
1370  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1371  else tag = MKTAG('d','v','h','p');
1372  } else if (track->par->height == 1080) { /* HD 1080 line */
1373  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1374  else tag = MKTAG('d','v','h','6');
1375  } else {
1376  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1377  return 0;
1378  }
1379 
1380  return tag;
1381 }
1382 
1383 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1384 {
1385  AVRational rate = st->avg_frame_rate;
1386 
1387 #if FF_API_LAVF_AVCTX
1388  FF_DISABLE_DEPRECATION_WARNINGS
1389  rate = av_inv_q(st->codec->time_base);
1390  if (av_timecode_check_frame_rate(rate) < 0) {
1391  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1392  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1393  rate = st->avg_frame_rate;
1394  }
1395  FF_ENABLE_DEPRECATION_WARNINGS
1396 #endif
1397 
1398  return rate;
1399 }
1400 
1401 static int defined_frame_rate(AVFormatContext *s, AVStream *st)
1402 {
1403  AVRational rational_framerate = find_fps(s, st);
1404  int rate = 0;
1405  if (rational_framerate.den != 0)
1406  rate = av_q2d(rational_framerate);
1407  return rate;
1408 }
1409 
1410 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1411 {
1412  int tag = track->par->codec_tag;
1413  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1414  AVStream *st = track->st;
1415  int rate = defined_frame_rate(s, st);
1416 
1417  if (!tag)
1418  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1419 
1420  if (track->par->format == AV_PIX_FMT_YUV420P) {
1421  if (track->par->width == 1280 && track->par->height == 720) {
1422  if (!interlaced) {
1423  if (rate == 24) tag = MKTAG('x','d','v','4');
1424  else if (rate == 25) tag = MKTAG('x','d','v','5');
1425  else if (rate == 30) tag = MKTAG('x','d','v','1');
1426  else if (rate == 50) tag = MKTAG('x','d','v','a');
1427  else if (rate == 60) tag = MKTAG('x','d','v','9');
1428  }
1429  } else if (track->par->width == 1440 && track->par->height == 1080) {
1430  if (!interlaced) {
1431  if (rate == 24) tag = MKTAG('x','d','v','6');
1432  else if (rate == 25) tag = MKTAG('x','d','v','7');
1433  else if (rate == 30) tag = MKTAG('x','d','v','8');
1434  } else {
1435  if (rate == 25) tag = MKTAG('x','d','v','3');
1436  else if (rate == 30) tag = MKTAG('x','d','v','2');
1437  }
1438  } else if (track->par->width == 1920 && track->par->height == 1080) {
1439  if (!interlaced) {
1440  if (rate == 24) tag = MKTAG('x','d','v','d');
1441  else if (rate == 25) tag = MKTAG('x','d','v','e');
1442  else if (rate == 30) tag = MKTAG('x','d','v','f');
1443  } else {
1444  if (rate == 25) tag = MKTAG('x','d','v','c');
1445  else if (rate == 30) tag = MKTAG('x','d','v','b');
1446  }
1447  }
1448  } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1449  if (track->par->width == 1280 && track->par->height == 720) {
1450  if (!interlaced) {
1451  if (rate == 24) tag = MKTAG('x','d','5','4');
1452  else if (rate == 25) tag = MKTAG('x','d','5','5');
1453  else if (rate == 30) tag = MKTAG('x','d','5','1');
1454  else if (rate == 50) tag = MKTAG('x','d','5','a');
1455  else if (rate == 60) tag = MKTAG('x','d','5','9');
1456  }
1457  } else if (track->par->width == 1920 && track->par->height == 1080) {
1458  if (!interlaced) {
1459  if (rate == 24) tag = MKTAG('x','d','5','d');
1460  else if (rate == 25) tag = MKTAG('x','d','5','e');
1461  else if (rate == 30) tag = MKTAG('x','d','5','f');
1462  } else {
1463  if (rate == 25) tag = MKTAG('x','d','5','c');
1464  else if (rate == 30) tag = MKTAG('x','d','5','b');
1465  }
1466  }
1467  }
1468 
1469  return tag;
1470 }
1471 
1472 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1473 {
1474  int tag = track->par->codec_tag;
1475  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1476  AVStream *st = track->st;
1477  int rate = defined_frame_rate(s, st);
1478 
1479  if (!tag)
1480  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1481 
1482  if (track->par->format == AV_PIX_FMT_YUV420P10) {
1483  if (track->par->width == 960 && track->par->height == 720) {
1484  if (!interlaced) {
1485  if (rate == 24) tag = MKTAG('a','i','5','p');
1486  else if (rate == 25) tag = MKTAG('a','i','5','q');
1487  else if (rate == 30) tag = MKTAG('a','i','5','p');
1488  else if (rate == 50) tag = MKTAG('a','i','5','q');
1489  else if (rate == 60) tag = MKTAG('a','i','5','p');
1490  }
1491  } else if (track->par->width == 1440 && track->par->height == 1080) {
1492  if (!interlaced) {
1493  if (rate == 24) tag = MKTAG('a','i','5','3');
1494  else if (rate == 25) tag = MKTAG('a','i','5','2');
1495  else if (rate == 30) tag = MKTAG('a','i','5','3');
1496  } else {
1497  if (rate == 50) tag = MKTAG('a','i','5','5');
1498  else if (rate == 60) tag = MKTAG('a','i','5','6');
1499  }
1500  }
1501  } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1502  if (track->par->width == 1280 && track->par->height == 720) {
1503  if (!interlaced) {
1504  if (rate == 24) tag = MKTAG('a','i','1','p');
1505  else if (rate == 25) tag = MKTAG('a','i','1','q');
1506  else if (rate == 30) tag = MKTAG('a','i','1','p');
1507  else if (rate == 50) tag = MKTAG('a','i','1','q');
1508  else if (rate == 60) tag = MKTAG('a','i','1','p');
1509  }
1510  } else if (track->par->width == 1920 && track->par->height == 1080) {
1511  if (!interlaced) {
1512  if (rate == 24) tag = MKTAG('a','i','1','3');
1513  else if (rate == 25) tag = MKTAG('a','i','1','2');
1514  else if (rate == 30) tag = MKTAG('a','i','1','3');
1515  } else {
1516  if (rate == 25) tag = MKTAG('a','i','1','5');
1517  else if (rate == 50) tag = MKTAG('a','i','1','5');
1518  else if (rate == 60) tag = MKTAG('a','i','1','6');
1519  }
1520  } else if ( track->par->width == 4096 && track->par->height == 2160
1521  || track->par->width == 3840 && track->par->height == 2160
1522  || track->par->width == 2048 && track->par->height == 1080) {
1523  tag = MKTAG('a','i','v','x');
1524  }
1525  }
1526 
1527  return tag;
1528 }
1529 
1530 static const struct {
1531  enum AVPixelFormat pix_fmt;
1532  uint32_t tag;
1533  unsigned bps;
1534 } mov_pix_fmt_tags[] = {
1535  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1536  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1537  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1538  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1539  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1540  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1541  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1542  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1543  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1544  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1545  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1546  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1547  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1548  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1549  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1550 };
1551 
1552 static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
1553 {
1554  int tag = MKTAG('A','V','d','n');
1555  if (track->par->profile != FF_PROFILE_UNKNOWN &&
1556  track->par->profile != FF_PROFILE_DNXHD)
1557  tag = MKTAG('A','V','d','h');
1558  return tag;
1559 }
1560 
1561 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1562 {
1563  int tag = track->par->codec_tag;
1564  int i;
1565  enum AVPixelFormat pix_fmt;
1566 
1567  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1568  if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1569  tag = mov_pix_fmt_tags[i].tag;
1570  track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1571  if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1572  break;
1573  }
1574  }
1575 
1576  pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1577  track->par->bits_per_coded_sample);
1578  if (tag == MKTAG('r','a','w',' ') &&
1579  track->par->format != pix_fmt &&
1580  track->par->format != AV_PIX_FMT_GRAY8 &&
1581  track->par->format != AV_PIX_FMT_NONE)
1582  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1583  av_get_pix_fmt_name(track->par->format));
1584  return tag;
1585 }
1586 
1587 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1588 {
1589  unsigned int tag = track->par->codec_tag;
1590 
1591  // "rtp " is used to distinguish internally created RTP-hint tracks
1592  // (with rtp_ctx) from other tracks.
1593  if (tag == MKTAG('r','t','p',' '))
1594  tag = 0;
1595  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1596  (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1597  track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1598  track->par->codec_id == AV_CODEC_ID_H263 ||
1599  track->par->codec_id == AV_CODEC_ID_H264 ||
1600  track->par->codec_id == AV_CODEC_ID_DNXHD ||
1601  track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1602  av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1603  if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1604  tag = mov_get_dv_codec_tag(s, track);
1605  else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1606  tag = mov_get_rawvideo_codec_tag(s, track);
1607  else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1608  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1609  else if (track->par->codec_id == AV_CODEC_ID_H264)
1610  tag = mov_get_h264_codec_tag(s, track);
1611  else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1612  tag = mov_get_dnxhd_codec_tag(s, track);
1613  else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1614  tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1615  if (!tag) { // if no mac fcc found, try with Microsoft tags
1616  tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1617  if (tag)
1618  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1619  "the file may be unplayable!\n");
1620  }
1621  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1622  tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1623  if (!tag) { // if no mac fcc found, try with Microsoft tags
1624  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1625  if (ms_tag) {
1626  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1627  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1628  "the file may be unplayable!\n");
1629  }
1630  }
1631  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1632  tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1633  }
1634 
1635  return tag;
1636 }
1637 
1638 static const AVCodecTag codec_cover_image_tags[] = {
1639  { AV_CODEC_ID_MJPEG, 0xD },
1640  { AV_CODEC_ID_PNG, 0xE },
1641  { AV_CODEC_ID_BMP, 0x1B },
1642  { AV_CODEC_ID_NONE, 0 },
1643 };
1644 
1645 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1646  unsigned int tag, int codec_id)
1647 {
1648  int i;
1649 
1650  /**
1651  * Check that tag + id is in the table
1652  */
1653  for (i = 0; tags && tags[i]; i++) {
1654  const AVCodecTag *codec_tags = tags[i];
1655  while (codec_tags->id != AV_CODEC_ID_NONE) {
1656  if (avpriv_toupper4(codec_tags->tag) == avpriv_toupper4(tag) &&
1657  codec_tags->id == codec_id)
1658  return codec_tags->tag;
1659  codec_tags++;
1660  }
1661  }
1662  return 0;
1663 }
1664 
1665 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1666 {
1667  if (is_cover_image(track->st))
1668  return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id);
1669 
1670  if (track->mode == MODE_IPOD)
1671  if (!av_match_ext(s->url, "m4a") &&
1672  !av_match_ext(s->url, "m4v") &&
1673  !av_match_ext(s->url, "m4b"))
1674  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1675  "Quicktime/Ipod might not play the file\n");
1676 
1677  if (track->mode == MODE_MOV) {
1678  return mov_get_codec_tag(s, track);
1679  } else
1680  return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1681  track->par->codec_id);
1682 }
1683 
1684 /** Write uuid atom.
1685  * Needed to make file play in iPods running newest firmware
1686  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1687  */
1688 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1689 {
1690  avio_wb32(pb, 28);
1691  ffio_wfourcc(pb, "uuid");
1692  avio_wb32(pb, 0x6b6840f2);
1693  avio_wb32(pb, 0x5f244fc5);
1694  avio_wb32(pb, 0xba39a51b);
1695  avio_wb32(pb, 0xcf0323f3);
1696  avio_wb32(pb, 0x0);
1697  return 28;
1698 }
1699 
1700 static const uint16_t fiel_data[] = {
1701  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1702 };
1703 
1704 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1705 {
1706  unsigned mov_field_order = 0;
1707  if (field_order < FF_ARRAY_ELEMS(fiel_data))
1708  mov_field_order = fiel_data[field_order];
1709  else
1710  return 0;
1711  avio_wb32(pb, 10);
1712  ffio_wfourcc(pb, "fiel");
1713  avio_wb16(pb, mov_field_order);
1714  return 10;
1715 }
1716 
1717 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1718 {
1719  int64_t pos = avio_tell(pb);
1720  avio_wb32(pb, 0); /* size */
1721  avio_wl32(pb, track->tag); // store it byteswapped
1722  avio_wb32(pb, 0); /* Reserved */
1723  avio_wb16(pb, 0); /* Reserved */
1724  avio_wb16(pb, 1); /* Data-reference index */
1725 
1726  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1727  mov_write_esds_tag(pb, track);
1728  else if (track->par->extradata_size)
1729  avio_write(pb, track->par->extradata, track->par->extradata_size);
1730 
1731  return update_size(pb, pos);
1732 }
1733 
1734 static int mov_write_st3d_tag(AVFormatContext *s, AVIOContext *pb, AVStereo3D *stereo_3d)
1735 {
1736  int8_t stereo_mode;
1737 
1738  if (stereo_3d->flags != 0) {
1739  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1740  return 0;
1741  }
1742 
1743  switch (stereo_3d->type) {
1744  case AV_STEREO3D_2D:
1745  stereo_mode = 0;
1746  break;
1747  case AV_STEREO3D_TOPBOTTOM:
1748  stereo_mode = 1;
1749  break;
1750  case AV_STEREO3D_SIDEBYSIDE:
1751  stereo_mode = 2;
1752  break;
1753  default:
1754  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1755  return 0;
1756  }
1757  avio_wb32(pb, 13); /* size */
1758  ffio_wfourcc(pb, "st3d");
1759  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1760  avio_w8(pb, stereo_mode);
1761  return 13;
1762 }
1763 
1764 static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
1765 {
1766  int64_t sv3d_pos, svhd_pos, proj_pos;
1767  const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1768 
1769  if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1770  spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1771  spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1772  av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1773  return 0;
1774  }
1775 
1776  sv3d_pos = avio_tell(pb);
1777  avio_wb32(pb, 0); /* size */
1778  ffio_wfourcc(pb, "sv3d");
1779 
1780  svhd_pos = avio_tell(pb);
1781  avio_wb32(pb, 0); /* size */
1782  ffio_wfourcc(pb, "svhd");
1783  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1784  avio_put_str(pb, metadata_source);
1785  update_size(pb, svhd_pos);
1786 
1787  proj_pos = avio_tell(pb);
1788  avio_wb32(pb, 0); /* size */
1789  ffio_wfourcc(pb, "proj");
1790 
1791  avio_wb32(pb, 24); /* size */
1792  ffio_wfourcc(pb, "prhd");
1793  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1794  avio_wb32(pb, spherical_mapping->yaw);
1795  avio_wb32(pb, spherical_mapping->pitch);
1796  avio_wb32(pb, spherical_mapping->roll);
1797 
1798  switch (spherical_mapping->projection) {
1799  case AV_SPHERICAL_EQUIRECTANGULAR:
1800  case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
1801  avio_wb32(pb, 28); /* size */
1802  ffio_wfourcc(pb, "equi");
1803  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1804  avio_wb32(pb, spherical_mapping->bound_top);
1805  avio_wb32(pb, spherical_mapping->bound_bottom);
1806  avio_wb32(pb, spherical_mapping->bound_left);
1807  avio_wb32(pb, spherical_mapping->bound_right);
1808  break;
1809  case AV_SPHERICAL_CUBEMAP:
1810  avio_wb32(pb, 20); /* size */
1811  ffio_wfourcc(pb, "cbmp");
1812  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1813  avio_wb32(pb, 0); /* layout */
1814  avio_wb32(pb, spherical_mapping->padding); /* padding */
1815  break;
1816  }
1817  update_size(pb, proj_pos);
1818 
1819  return update_size(pb, sv3d_pos);
1820 }
1821 
1822 static int mov_write_dvcc_dvvc_tag(AVFormatContext *s, AVIOContext *pb, AVDOVIDecoderConfigurationRecord *dovi)
1823 {
1824  avio_wb32(pb, 32); /* size = 8 + 24 */
1825  if (dovi->dv_profile > 7)
1826  ffio_wfourcc(pb, "dvvC");
1827  else
1828  ffio_wfourcc(pb, "dvcC");
1829  avio_w8(pb, dovi->dv_version_major);
1830  avio_w8(pb, dovi->dv_version_minor);
1831  avio_wb16(pb, (dovi->dv_profile << 9) | (dovi->dv_level << 3) |
1832  (dovi->rpu_present_flag << 2) | (dovi->el_present_flag << 1) |
1833  dovi->bl_present_flag);
1834  avio_wb32(pb, (dovi->dv_bl_signal_compatibility_id << 28) | 0);
1835 
1836  avio_wb32(pb, 0); /* reserved */
1837  avio_wb32(pb, 0); /* reserved */
1838  avio_wb32(pb, 0); /* reserved */
1839  avio_wb32(pb, 0); /* reserved */
1840  av_log(s, AV_LOG_DEBUG, "DOVI in %s box, version: %d.%d, profile: %d, level: %d, "
1841  "rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
1842  dovi->dv_profile > 7 ? "dvvC" : "dvcC",
1843  dovi->dv_version_major, dovi->dv_version_minor,
1844  dovi->dv_profile, dovi->dv_level,
1845  dovi->rpu_present_flag,
1846  dovi->el_present_flag,
1847  dovi->bl_present_flag,
1848  dovi->dv_bl_signal_compatibility_id);
1849  return 32; /* 8 + 24 */
1850 }
1851 
1852 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
1853 {
1854  avio_wb32(pb, 40);
1855  ffio_wfourcc(pb, "clap");
1856  avio_wb32(pb, track->par->width); /* apertureWidth_N */
1857  avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
1858  avio_wb32(pb, track->height); /* apertureHeight_N */
1859  avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
1860  avio_wb32(pb, 0); /* horizOff_N (= 0) */
1861  avio_wb32(pb, 1); /* horizOff_D (= 1) */
1862  avio_wb32(pb, 0); /* vertOff_N (= 0) */
1863  avio_wb32(pb, 1); /* vertOff_D (= 1) */
1864  return 40;
1865 }
1866 
1867 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1868 {
1869  AVRational sar;
1870  av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1871  track->par->sample_aspect_ratio.den, INT_MAX);
1872 
1873  avio_wb32(pb, 16);
1874  ffio_wfourcc(pb, "pasp");
1875  avio_wb32(pb, sar.num);
1876  avio_wb32(pb, sar.den);
1877  return 16;
1878 }
1879 
1880 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
1881 {
1882  uint32_t gama = 0;
1883  if (gamma <= 0.0) {
1884  gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1885  }
1886  av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1887 
1888  if (gamma > 1e-6) {
1889  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1890  av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1891 
1892  av_assert0(track->mode == MODE_MOV);
1893  avio_wb32(pb, 12);
1894  ffio_wfourcc(pb, "gama");
1895  avio_wb32(pb, gama);
1896  return 12;
1897  } else {
1898  av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1899  }
1900  return 0;
1901 }
1902 
1903 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
1904 {
1905  int64_t pos = avio_tell(pb);
1906 
1907  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1908  // Ref (MP4): ISO/IEC 14496-12:2012
1909 
1910  const uint8_t *icc_profile;
1911  int icc_profile_size;
1912 
1913  if (prefer_icc) {
1914  icc_profile = av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, &icc_profile_size);
1915 
1916  if (icc_profile) {
1917  avio_wb32(pb, 12 + icc_profile_size);
1918  ffio_wfourcc(pb, "colr");
1919  ffio_wfourcc(pb, "prof");
1920  avio_write(pb, icc_profile, icc_profile_size);
1921  return 12 + icc_profile_size;
1922  }
1923  else {
1924  av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n");
1925  }
1926  }
1927 
1928  /* We should only ever be called by MOV or MP4. */
1929  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1930 
1931  avio_wb32(pb, 0); /* size */
1932  ffio_wfourcc(pb, "colr");
1933  if (track->mode == MODE_MP4)
1934  ffio_wfourcc(pb, "nclx");
1935  else
1936  ffio_wfourcc(pb, "nclc");
1937  // Do not try to guess the color info if it is AVCOL_PRI_UNSPECIFIED.
1938  // e.g., Dolby Vision for Apple devices should be set to AVCOL_PRI_UNSPECIFIED. See
1939  // https://developer.apple.com/av-foundation/High-Dynamic-Range-Metadata-for-Apple-Devices.pdf
1940  avio_wb16(pb, track->par->color_primaries);
1941  avio_wb16(pb, track->par->color_trc);
1942  avio_wb16(pb, track->par->color_space);
1943  if (track->mode == MODE_MP4) {
1944  int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
1945  avio_w8(pb, full_range << 7);
1946  }
1947 
1948  return update_size(pb, pos);
1949 }
1950 
1951 static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track)
1952 {
1953  const uint8_t *side_data;
1954  const AVContentLightMetadata *content_light_metadata;
1955 
1956  side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, NULL);
1957  if (!side_data) {
1958  av_log(NULL, AV_LOG_VERBOSE, "Not writing 'clli' atom. No content light level info.\n");
1959  return 0;
1960  }
1961  content_light_metadata = (const AVContentLightMetadata*)side_data;
1962 
1963  avio_wb32(pb, 12); // size
1964  ffio_wfourcc(pb, "clli");
1965  avio_wb16(pb, content_light_metadata->MaxCLL);
1966  avio_wb16(pb, content_light_metadata->MaxFALL);
1967  return 12;
1968 }
1969 
1970 static inline int64_t rescale_mdcv(AVRational q, int b)
1971 {
1972  return av_rescale(q.num, b, q.den);
1973 }
1974 
1975 static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track)
1976 {
1977  const int chroma_den = 50000;
1978  const int luma_den = 10000;
1979  const uint8_t *side_data;
1980  const AVMasteringDisplayMetadata *metadata;
1981 
1982  side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
1983  metadata = (const AVMasteringDisplayMetadata*)side_data;
1984  if (!metadata || !metadata->has_primaries || !metadata->has_luminance) {
1985  av_log(NULL, AV_LOG_VERBOSE, "Not writing 'mdcv' atom. Missing mastering metadata.\n");
1986  return 0;
1987  }
1988 
1989  avio_wb32(pb, 32); // size
1990  ffio_wfourcc(pb, "mdcv");
1991  avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][0], chroma_den));
1992  avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][1], chroma_den));
1993  avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][0], chroma_den));
1994  avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][1], chroma_den));
1995  avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][0], chroma_den));
1996  avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][1], chroma_den));
1997  avio_wb16(pb, rescale_mdcv(metadata->white_point[0], chroma_den));
1998  avio_wb16(pb, rescale_mdcv(metadata->white_point[1], chroma_den));
1999  avio_wb32(pb, rescale_mdcv(metadata->max_luminance, luma_den));
2000  avio_wb32(pb, rescale_mdcv(metadata->min_luminance, luma_den));
2001  return 32;
2002 }
2003 
2004 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
2005 {
2006  AVDictionaryEntry *encoder;
2007  int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
2008  || (track->par->width == 1440 && track->par->height == 1080)
2009  || (track->par->width == 1920 && track->par->height == 1080);
2010 
2011  if (track->mode == MODE_MOV &&
2012  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
2013  av_strlcpy(compressor_name, encoder->value, 32);
2014  } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
2015  int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
2016  AVStream *st = track->st;
2017  int rate = defined_frame_rate(NULL, st);
2018  av_strlcatf(compressor_name, len, "XDCAM");
2019  if (track->par->format == AV_PIX_FMT_YUV422P) {
2020  av_strlcatf(compressor_name, len, " HD422");
2021  } else if(track->par->width == 1440) {
2022  av_strlcatf(compressor_name, len, " HD");
2023  } else
2024  av_strlcatf(compressor_name, len, " EX");
2025 
2026  av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
2027 
2028  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
2029  }
2030 }
2031 
2032 static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2033 {
2034  int64_t pos = avio_tell(pb);
2035  char compressor_name[32] = { 0 };
2036  int avid = 0;
2037 
2038  int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
2039  || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
2040  || track->par->codec_id == AV_CODEC_ID_V308
2041  || track->par->codec_id == AV_CODEC_ID_V408
2042  || track->par->codec_id == AV_CODEC_ID_V410
2043  || track->par->codec_id == AV_CODEC_ID_V210);
2044 
2045  avio_wb32(pb, 0); /* size */
2046  if (mov->encryption_scheme != MOV_ENC_NONE) {
2047  ffio_wfourcc(pb, "encv");
2048  } else {
2049  avio_wl32(pb, track->tag); // store it byteswapped
2050  }
2051  avio_wb32(pb, 0); /* Reserved */
2052  avio_wb16(pb, 0); /* Reserved */
2053  avio_wb16(pb, 1); /* Data-reference index */
2054 
2055  if (uncompressed_ycbcr) {
2056  avio_wb16(pb, 2); /* Codec stream version */
2057  } else {
2058  avio_wb16(pb, 0); /* Codec stream version */
2059  }
2060  avio_wb16(pb, 0); /* Codec stream revision (=0) */
2061  if (track->mode == MODE_MOV) {
2062  ffio_wfourcc(pb, "FFMP"); /* Vendor */
2063  if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
2064  avio_wb32(pb, 0); /* Temporal Quality */
2065  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
2066  } else {
2067  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
2068  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
2069  }
2070  } else {
2071  avio_wb32(pb, 0); /* Reserved */
2072  avio_wb32(pb, 0); /* Reserved */
2073  avio_wb32(pb, 0); /* Reserved */
2074  }
2075  avio_wb16(pb, track->par->width); /* Video width */
2076  avio_wb16(pb, track->height); /* Video height */
2077  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
2078  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
2079  avio_wb32(pb, 0); /* Data size (= 0) */
2080  avio_wb16(pb, 1); /* Frame count (= 1) */
2081 
2082  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
2083  find_compressor(compressor_name, 32, track);
2084  avio_w8(pb, strlen(compressor_name));
2085  avio_write(pb, compressor_name, 31);
2086 
2087  if (track->mode == MODE_MOV &&
2088  (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
2089  avio_wb16(pb, 0x18);
2090  else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2091  avio_wb16(pb, track->par->bits_per_coded_sample |
2092  (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2093  else
2094  avio_wb16(pb, 0x18); /* Reserved */
2095 
2096  if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2097  int pal_size, i;
2098  avio_wb16(pb, 0); /* Color table ID */
2099  avio_wb32(pb, 0); /* Color table seed */
2100  avio_wb16(pb, 0x8000); /* Color table flags */
2101  if (track->par->bits_per_coded_sample < 0 || track->par->bits_per_coded_sample > 8)
2102  return AVERROR(EINVAL);
2103  pal_size = 1 << track->par->bits_per_coded_sample;
2104  avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2105  for (i = 0; i < pal_size; i++) {
2106  uint32_t rgb = track->palette[i];
2107  uint16_t r = (rgb >> 16) & 0xff;
2108  uint16_t g = (rgb >> 8) & 0xff;
2109  uint16_t b = rgb & 0xff;
2110  avio_wb16(pb, 0);
2111  avio_wb16(pb, (r << 8) | r);
2112  avio_wb16(pb, (g << 8) | g);
2113  avio_wb16(pb, (b << 8) | b);
2114  }
2115  } else
2116  avio_wb16(pb, 0xffff); /* Reserved */
2117 
2118  if (track->tag == MKTAG('m','p','4','v'))
2119  mov_write_esds_tag(pb, track);
2120  else if (track->par->codec_id == AV_CODEC_ID_H263)
2121  mov_write_d263_tag(pb);
2122  else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2123  track->par->codec_id == AV_CODEC_ID_SVQ3) {
2124  mov_write_extradata_tag(pb, track);
2125  avio_wb32(pb, 0);
2126  } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2127  mov_write_avid_tag(pb, track);
2128  avid = 1;
2129  } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2130  mov_write_hvcc_tag(pb, track);
2131  else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2132  mov_write_avcc_tag(pb, track);
2133  if (track->mode == MODE_IPOD)
2134  mov_write_uuid_tag_ipod(pb);
2135  } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2136  mov_write_vpcc_tag(mov->fc, pb, track);
2137  } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2138  mov_write_av1c_tag(pb, track);
2139  } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2140  mov_write_dvc1_tag(pb, track);
2141  else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2142  track->par->codec_id == AV_CODEC_ID_VP6A) {
2143  /* Don't write any potential extradata here - the cropping
2144  * is signalled via the normal width/height fields. */
2145  } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2146  if (track->par->codec_tag == MKTAG('R','1','0','k'))
2147  mov_write_dpxe_tag(pb, track);
2148  } else if (track->vos_len > 0)
2149  mov_write_glbl_tag(pb, track);
2150 
2151  if (track->par->codec_id != AV_CODEC_ID_H264 &&
2152  track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2153  track->par->codec_id != AV_CODEC_ID_DNXHD) {
2154  int field_order = track->par->field_order;
2155 
2156 #if FF_API_LAVF_AVCTX
2157  FF_DISABLE_DEPRECATION_WARNINGS
2158  if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
2159  field_order = track->st->codec->field_order;
2160  FF_ENABLE_DEPRECATION_WARNINGS
2161 #endif
2162 
2163  if (field_order != AV_FIELD_UNKNOWN)
2164  mov_write_fiel_tag(pb, track, field_order);
2165  }
2166 
2167  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2168  if (track->mode == MODE_MOV)
2169  mov_write_gama_tag(s, pb, track, mov->gamma);
2170  else
2171  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2172  }
2173  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2174  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
2175  mov_write_colr_tag(pb, track, mov->flags & FF_MOV_FLAG_PREFER_ICC);
2176  else
2177  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
2178  }
2179  if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2180  mov_write_clli_tag(pb, track);
2181  mov_write_mdcv_tag(pb, track);
2182  }
2183 
2184  if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2185  AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
2186  AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
2187  AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)
2188  av_stream_get_side_data(track->st, AV_PKT_DATA_DOVI_CONF, NULL);;
2189 
2190  if (stereo_3d)
2191  mov_write_st3d_tag(s, pb, stereo_3d);
2192  if (spherical_mapping)
2193  mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
2194  if (dovi)
2195  mov_write_dvcc_dvvc_tag(s, pb, dovi);
2196  }
2197 
2198  if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2199  mov_write_pasp_tag(pb, track);
2200  }
2201 
2202  if (uncompressed_ycbcr){
2203  mov_write_clap_tag(pb, track);
2204  }
2205 
2206  if (mov->encryption_scheme != MOV_ENC_NONE) {
2207  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2208  }
2209 
2210  /* extra padding for avid stsd */
2211  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2212  if (avid)
2213  avio_wb32(pb, 0);
2214 
2215  return update_size(pb, pos);
2216 }
2217 
2218 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2219 {
2220  int64_t pos = avio_tell(pb);
2221  avio_wb32(pb, 0); /* size */
2222  ffio_wfourcc(pb, "rtp ");
2223  avio_wb32(pb, 0); /* Reserved */
2224  avio_wb16(pb, 0); /* Reserved */
2225  avio_wb16(pb, 1); /* Data-reference index */
2226 
2227  avio_wb16(pb, 1); /* Hint track version */
2228  avio_wb16(pb, 1); /* Highest compatible version */
2229  avio_wb32(pb, track->max_packet_size); /* Max packet size */
2230 
2231  avio_wb32(pb, 12); /* size */
2232  ffio_wfourcc(pb, "tims");
2233  avio_wb32(pb, track->timescale);
2234 
2235  return update_size(pb, pos);
2236 }
2237 
2238 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2239 {
2240  uint64_t str_size =strlen(reel_name);
2241  int64_t pos = avio_tell(pb);
2242 
2243  if (str_size >= UINT16_MAX){
2244  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2245  avio_wb16(pb, 0);
2246  return AVERROR(EINVAL);
2247  }
2248 
2249  avio_wb32(pb, 0); /* size */
2250  ffio_wfourcc(pb, "name"); /* Data format */
2251  avio_wb16(pb, str_size); /* string size */
2252  avio_wb16(pb, track->language); /* langcode */
2253  avio_write(pb, reel_name, str_size); /* reel name */
2254  return update_size(pb,pos);
2255 }
2256 
2257 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2258 {
2259  int64_t pos = avio_tell(pb);
2260 #if 1
2261  int frame_duration;
2262  int nb_frames;
2263  AVDictionaryEntry *t = NULL;
2264 
2265  if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2266 #if FF_API_LAVF_AVCTX
2267  FF_DISABLE_DEPRECATION_WARNINGS
2268  frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
2269  nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
2270  FF_ENABLE_DEPRECATION_WARNINGS
2271 #else
2272  av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2273  return AVERROR(EINVAL);
2274 #endif
2275  } else {
2276  frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2277  nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2278  }
2279 
2280  if (nb_frames > 255) {
2281  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2282  return AVERROR(EINVAL);
2283  }
2284 
2285  avio_wb32(pb, 0); /* size */
2286  ffio_wfourcc(pb, "tmcd"); /* Data format */
2287  avio_wb32(pb, 0); /* Reserved */
2288  avio_wb32(pb, 1); /* Data reference index */
2289  avio_wb32(pb, 0); /* Flags */
2290  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2291  avio_wb32(pb, track->timescale); /* Timescale */
2292  avio_wb32(pb, frame_duration); /* Frame duration */
2293  avio_w8(pb, nb_frames); /* Number of frames */
2294  avio_w8(pb, 0); /* Reserved */
2295 
2296  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2297  if (t && utf8len(t->value) && track->mode != MODE_MP4)
2298  mov_write_source_reference_tag(pb, track, t->value);
2299  else
2300  avio_wb16(pb, 0); /* zero size */
2301 #else
2302 
2303  avio_wb32(pb, 0); /* size */
2304  ffio_wfourcc(pb, "tmcd"); /* Data format */
2305  avio_wb32(pb, 0); /* Reserved */
2306  avio_wb32(pb, 1); /* Data reference index */
2307  if (track->par->extradata_size)
2308  avio_write(pb, track->par->extradata, track->par->extradata_size);
2309 #endif
2310  return update_size(pb, pos);
2311 }
2312 
2313 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2314 {
2315  int64_t pos = avio_tell(pb);
2316  avio_wb32(pb, 0); /* size */
2317  ffio_wfourcc(pb, "gpmd");
2318  avio_wb32(pb, 0); /* Reserved */
2319  avio_wb16(pb, 0); /* Reserved */
2320  avio_wb16(pb, 1); /* Data-reference index */
2321  avio_wb32(pb, 0); /* Reserved */
2322  return update_size(pb, pos);
2323 }
2324 
2325 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2326 {
2327  int64_t pos = avio_tell(pb);
2328  int ret = 0;
2329  avio_wb32(pb, 0); /* size */
2330  ffio_wfourcc(pb, "stsd");
2331  avio_wb32(pb, 0); /* version & flags */
2332  avio_wb32(pb, 1); /* entry count */
2333  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2334  ret = mov_write_video_tag(s, pb, mov, track);
2335  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2336  ret = mov_write_audio_tag(s, pb, mov, track);
2337  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2338  ret = mov_write_subtitle_tag(pb, track);
2339  else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2340  ret = mov_write_rtp_tag(pb, track);
2341  else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2342  ret = mov_write_tmcd_tag(pb, track);
2343  else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2344  ret = mov_write_gpmd_tag(pb, track);
2345 
2346  if (ret < 0)
2347  return ret;
2348 
2349  return update_size(pb, pos);
2350 }
2351 
2352 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2353 {
2354  MOVMuxContext *mov = s->priv_data;
2355  MOVStts *ctts_entries;
2356  uint32_t entries = 0;
2357  uint32_t atom_size;
2358  int i;
2359 
2360  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2361  if (!ctts_entries)
2362  return AVERROR(ENOMEM);
2363  ctts_entries[0].count = 1;
2364  ctts_entries[0].duration = track->cluster[0].cts;
2365  for (i = 1; i < track->entry; i++) {
2366  if (track->cluster[i].cts == ctts_entries[entries].duration) {
2367  ctts_entries[entries].count++; /* compress */
2368  } else {
2369  entries++;
2370  ctts_entries[entries].duration = track->cluster[i].cts;
2371  ctts_entries[entries].count = 1;
2372  }
2373  }
2374  entries++; /* last one */
2375  atom_size = 16 + (entries * 8);
2376  avio_wb32(pb, atom_size); /* size */
2377  ffio_wfourcc(pb, "ctts");
2378  if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2379  avio_w8(pb, 1); /* version */
2380  else
2381  avio_w8(pb, 0); /* version */
2382  avio_wb24(pb, 0); /* flags */
2383  avio_wb32(pb, entries); /* entry count */
2384  for (i = 0; i < entries; i++) {
2385  avio_wb32(pb, ctts_entries[i].count);
2386  avio_wb32(pb, ctts_entries[i].duration);
2387  }
2388  av_free(ctts_entries);
2389  return atom_size;
2390 }
2391 
2392 /* Time to sample atom */
2393 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2394 {
2395  MOVStts *stts_entries = NULL;
2396  uint32_t entries = -1;
2397  uint32_t atom_size;
2398  int i;
2399 
2400  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2401  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2402  if (!stts_entries)
2403  return AVERROR(ENOMEM);
2404  stts_entries[0].count = track->sample_count;
2405  stts_entries[0].duration = 1;
2406  entries = 1;
2407  } else {
2408  if (track->entry) {
2409  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2410  if (!stts_entries)
2411  return AVERROR(ENOMEM);
2412  }
2413  for (i = 0; i < track->entry; i++) {
2414  int duration = get_cluster_duration(track, i);
2415  if (i && duration == stts_entries[entries].duration) {
2416  stts_entries[entries].count++; /* compress */
2417  } else {
2418  entries++;
2419  stts_entries[entries].duration = duration;
2420  stts_entries[entries].count = 1;
2421  }
2422  }
2423  entries++; /* last one */
2424  }
2425  atom_size = 16 + (entries * 8);
2426  avio_wb32(pb, atom_size); /* size */
2427  ffio_wfourcc(pb, "stts");
2428  avio_wb32(pb, 0); /* version & flags */
2429  avio_wb32(pb, entries); /* entry count */
2430  for (i = 0; i < entries; i++) {
2431  avio_wb32(pb, stts_entries[i].count);
2432  avio_wb32(pb, stts_entries[i].duration);
2433  }
2434  av_free(stts_entries);
2435  return atom_size;
2436 }
2437 
2438 static int mov_write_dref_tag(AVIOContext *pb)
2439 {
2440  avio_wb32(pb, 28); /* size */
2441  ffio_wfourcc(pb, "dref");
2442  avio_wb32(pb, 0); /* version & flags */
2443  avio_wb32(pb, 1); /* entry count */
2444 
2445  avio_wb32(pb, 0xc); /* size */
2446  //FIXME add the alis and rsrc atom
2447  ffio_wfourcc(pb, "url ");
2448  avio_wb32(pb, 1); /* version & flags */
2449 
2450  return 28;
2451 }
2452 
2453 static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
2454 {
2455  struct sgpd_entry {
2456  int count;
2457  int16_t roll_distance;
2458  int group_description_index;
2459  };
2460 
2461  struct sgpd_entry *sgpd_entries = NULL;
2462  int entries = -1;
2463  int group = 0;
2464  int i, j;
2465 
2466  const int OPUS_SEEK_PREROLL_MS = 80;
2467  int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2468  (AVRational){1, 1000},
2469  (AVRational){1, 48000});
2470 
2471  if (!track->entry)
2472  return 0;
2473 
2474  sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2475  if (!sgpd_entries)
2476  return AVERROR(ENOMEM);
2477 
2478  av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC);
2479 
2480  if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2481  for (i = 0; i < track->entry; i++) {
2482  int roll_samples_remaining = roll_samples;
2483  int distance = 0;
2484  for (j = i - 1; j >= 0; j--) {
2485  roll_samples_remaining -= get_cluster_duration(track, j);
2486  distance++;
2487  if (roll_samples_remaining <= 0)
2488  break;
2489  }
2490  /* We don't have enough preceeding samples to compute a valid
2491  roll_distance here, so this sample can't be independently
2492  decoded. */
2493  if (roll_samples_remaining > 0)
2494  distance = 0;
2495  /* Verify distance is a maximum of 32 (2.5ms) packets. */
2496  if (distance > 32)
2497  return AVERROR_INVALIDDATA;
2498  if (i && distance == sgpd_entries[entries].roll_distance) {
2499  sgpd_entries[entries].count++;
2500  } else {
2501  entries++;
2502  sgpd_entries[entries].count = 1;
2503  sgpd_entries[entries].roll_distance = distance;
2504  sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2505  }
2506  }
2507  } else {
2508  entries++;
2509  sgpd_entries[entries].count = track->sample_count;
2510  sgpd_entries[entries].roll_distance = 1;
2511  sgpd_entries[entries].group_description_index = ++group;
2512  }
2513  entries++;
2514 
2515  if (!group) {
2516  av_free(sgpd_entries);
2517  return 0;
2518  }
2519 
2520  /* Write sgpd tag */
2521  avio_wb32(pb, 24 + (group * 2)); /* size */
2522  ffio_wfourcc(pb, "sgpd");
2523  avio_wb32(pb, 1 << 24); /* fullbox */
2524  ffio_wfourcc(pb, "roll");
2525  avio_wb32(pb, 2); /* default_length */
2526  avio_wb32(pb, group); /* entry_count */
2527  for (i = 0; i < entries; i++) {
2528  if (sgpd_entries[i].group_description_index) {
2529  avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2530  }
2531  }
2532 
2533  /* Write sbgp tag */
2534  avio_wb32(pb, 20 + (entries * 8)); /* size */
2535  ffio_wfourcc(pb, "sbgp");
2536  avio_wb32(pb, 0); /* fullbox */
2537  ffio_wfourcc(pb, "roll");
2538  avio_wb32(pb, entries); /* entry_count */
2539  for (i = 0; i < entries; i++) {
2540  avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2541  avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2542  }
2543 
2544  av_free(sgpd_entries);
2545  return 0;
2546 }
2547 
2548 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2549 {
2550  int64_t pos = avio_tell(pb);
2551  int ret = 0;
2552 
2553  avio_wb32(pb, 0); /* size */
2554  ffio_wfourcc(pb, "stbl");
2555  if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2556  return ret;
2557  mov_write_stts_tag(pb, track);
2558  if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2559  track->par->codec_id == AV_CODEC_ID_TRUEHD ||
2560  track->par->codec_id == AV_CODEC_ID_MPEGH_3D_AUDIO ||
2561  track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2562  track->has_keyframes && track->has_keyframes < track->entry)
2563  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2564  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2565  mov_write_sdtp_tag(pb, track);
2566  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2567  mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2568  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2569  track->flags & MOV_TRACK_CTTS && track->entry) {
2570 
2571  if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2572  return ret;
2573  }
2574  mov_write_stsc_tag(pb, track);
2575  mov_write_stsz_tag(pb, track);
2576  mov_write_stco_tag(pb, track);
2577  if (track->cenc.aes_ctr) {
2578  ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2579  }
2580  if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2581  mov_preroll_write_stbl_atoms(pb, track);
2582  }
2583  return update_size(pb, pos);
2584 }
2585 
2586 static int mov_write_dinf_tag(AVIOContext *pb)
2587 {
2588  int64_t pos = avio_tell(pb);
2589  avio_wb32(pb, 0); /* size */
2590  ffio_wfourcc(pb, "dinf");
2591  mov_write_dref_tag(pb);
2592  return update_size(pb, pos);
2593 }
2594 
2595 static int mov_write_nmhd_tag(AVIOContext *pb)
2596 {
2597  avio_wb32(pb, 12);
2598  ffio_wfourcc(pb, "nmhd");
2599  avio_wb32(pb, 0);
2600  return 12;
2601 }
2602 
2603 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2604 {
2605  int64_t pos = avio_tell(pb);
2606  const char *font = "Lucida Grande";
2607  avio_wb32(pb, 0); /* size */
2608  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2609  avio_wb32(pb, 0); /* version & flags */
2610  avio_wb16(pb, 0); /* text font */
2611  avio_wb16(pb, 0); /* text face */
2612  avio_wb16(pb, 12); /* text size */
2613  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2614  avio_wb16(pb, 0x0000); /* text color (red) */
2615  avio_wb16(pb, 0x0000); /* text color (green) */
2616  avio_wb16(pb, 0x0000); /* text color (blue) */
2617  avio_wb16(pb, 0xffff); /* background color (red) */
2618  avio_wb16(pb, 0xffff); /* background color (green) */
2619  avio_wb16(pb, 0xffff); /* background color (blue) */
2620  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2621  avio_write(pb, font, strlen(font)); /* font name */
2622  return update_size(pb, pos);
2623 }
2624 
2625 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2626 {
2627  int64_t pos = avio_tell(pb);
2628  avio_wb32(pb, 0); /* size */
2629  ffio_wfourcc(pb, "gmhd");
2630  avio_wb32(pb, 0x18); /* gmin size */
2631  ffio_wfourcc(pb, "gmin");/* generic media info */
2632  avio_wb32(pb, 0); /* version & flags */
2633  avio_wb16(pb, 0x40); /* graphics mode = */
2634  avio_wb16(pb, 0x8000); /* opColor (r?) */
2635  avio_wb16(pb, 0x8000); /* opColor (g?) */
2636  avio_wb16(pb, 0x8000); /* opColor (b?) */
2637  avio_wb16(pb, 0); /* balance */
2638  avio_wb16(pb, 0); /* reserved */
2639 
2640  /*
2641  * This special text atom is required for
2642  * Apple Quicktime chapters. The contents
2643  * don't appear to be documented, so the
2644  * bytes are copied verbatim.
2645  */
2646  if (track->tag != MKTAG('c','6','0','8')) {
2647  avio_wb32(pb, 0x2C); /* size */
2648  ffio_wfourcc(pb, "text");
2649  avio_wb16(pb, 0x01);
2650  avio_wb32(pb, 0x00);
2651  avio_wb32(pb, 0x00);
2652  avio_wb32(pb, 0x00);
2653  avio_wb32(pb, 0x01);
2654  avio_wb32(pb, 0x00);
2655  avio_wb32(pb, 0x00);
2656  avio_wb32(pb, 0x00);
2657  avio_wb32(pb, 0x00004000);
2658  avio_wb16(pb, 0x0000);
2659  }
2660 
2661  if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2662  int64_t tmcd_pos = avio_tell(pb);
2663  avio_wb32(pb, 0); /* size */
2664  ffio_wfourcc(pb, "tmcd");
2665  mov_write_tcmi_tag(pb, track);
2666  update_size(pb, tmcd_pos);
2667  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2668  int64_t gpmd_pos = avio_tell(pb);
2669  avio_wb32(pb, 0); /* size */
2670  ffio_wfourcc(pb, "gpmd");
2671  avio_wb32(pb, 0); /* version */
2672  update_size(pb, gpmd_pos);
2673  }
2674  return update_size(pb, pos);
2675 }
2676 
2677 static int mov_write_smhd_tag(AVIOContext *pb)
2678 {
2679  avio_wb32(pb, 16); /* size */
2680  ffio_wfourcc(pb, "smhd");
2681  avio_wb32(pb, 0); /* version & flags */
2682  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2683  avio_wb16(pb, 0); /* reserved */
2684  return 16;
2685 }
2686 
2687 static int mov_write_vmhd_tag(AVIOContext *pb)
2688 {
2689  avio_wb32(pb, 0x14); /* size (always 0x14) */
2690  ffio_wfourcc(pb, "vmhd");
2691  avio_wb32(pb, 0x01); /* version & flags */
2692  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2693  return 0x14;
2694 }
2695 
2696 static int is_clcp_track(MOVTrack *track)
2697 {
2698  return track->tag == MKTAG('c','7','0','8') ||
2699  track->tag == MKTAG('c','6','0','8');
2700 }
2701 
2702 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2703 {
2704  MOVMuxContext *mov = s->priv_data;
2705  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2706  int64_t pos = avio_tell(pb);
2707 
2708  hdlr = "dhlr";
2709  hdlr_type = "url ";
2710  descr = "DataHandler";
2711 
2712  if (track) {
2713  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2714  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2715  hdlr_type = "vide";
2716  descr = "VideoHandler";
2717  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2718  hdlr_type = "soun";
2719  descr = "SoundHandler";
2720  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2721  if (is_clcp_track(track)) {
2722  hdlr_type = "clcp";
2723  descr = "ClosedCaptionHandler";
2724  } else {
2725  if (track->tag == MKTAG('t','x','3','g')) {
2726  hdlr_type = "sbtl";
2727  } else if (track->tag == MKTAG('m','p','4','s')) {
2728  hdlr_type = "subp";
2729  } else {
2730  hdlr_type = "text";
2731  }
2732  descr = "SubtitleHandler";
2733  }
2734  } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2735  hdlr_type = "hint";
2736  descr = "HintHandler";
2737  } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2738  hdlr_type = "tmcd";
2739  descr = "TimeCodeHandler";
2740  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2741  hdlr_type = "meta";
2742  descr = "GoPro MET"; // GoPro Metadata
2743  } else {
2744  av_log(s, AV_LOG_WARNING,
2745  "Unknown hldr_type for %s, writing dummy values\n",
2746  av_fourcc2str(track->par->codec_tag));
2747  }
2748  if (track->st) {
2749  // hdlr.name is used by some players to identify the content title
2750  // of the track. So if an alternate handler description is
2751  // specified, use it.
2752  AVDictionaryEntry *t;
2753  t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
2754  if (t && utf8len(t->value))
2755  descr = t->value;
2756  }
2757  }
2758 
2759  if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
2760  descr = "";
2761 
2762  avio_wb32(pb, 0); /* size */
2763  ffio_wfourcc(pb, "hdlr");
2764  avio_wb32(pb, 0); /* Version & flags */
2765  avio_write(pb, hdlr, 4); /* handler */
2766  ffio_wfourcc(pb, hdlr_type); /* handler type */
2767  avio_wb32(pb, 0); /* reserved */
2768  avio_wb32(pb, 0); /* reserved */
2769  avio_wb32(pb, 0); /* reserved */
2770  if (!track || track->mode == MODE_MOV)
2771  avio_w8(pb, strlen(descr)); /* pascal string */
2772  avio_write(pb, descr, strlen(descr)); /* handler description */
2773  if (track && track->mode != MODE_MOV)
2774  avio_w8(pb, 0); /* c string */
2775  return update_size(pb, pos);
2776 }
2777 
2778 static int mov_write_hmhd_tag(AVIOContext *pb)
2779 {
2780  /* This atom must be present, but leaving the values at zero
2781  * seems harmless. */
2782  avio_wb32(pb, 28); /* size */
2783  ffio_wfourcc(pb, "hmhd");
2784  avio_wb32(pb, 0); /* version, flags */
2785  avio_wb16(pb, 0); /* maxPDUsize */
2786  avio_wb16(pb, 0); /* avgPDUsize */
2787  avio_wb32(pb, 0); /* maxbitrate */
2788  avio_wb32(pb, 0); /* avgbitrate */
2789  avio_wb32(pb, 0); /* reserved */
2790  return 28;
2791 }
2792 
2793 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2794 {
2795  int64_t pos = avio_tell(pb);
2796  int ret;
2797 
2798  avio_wb32(pb, 0); /* size */
2799  ffio_wfourcc(pb, "minf");
2800  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2801  mov_write_vmhd_tag(pb);
2802  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2803  mov_write_smhd_tag(pb);
2804  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2805  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2806  mov_write_gmhd_tag(pb, track);
2807  } else {
2808  mov_write_nmhd_tag(pb);
2809  }
2810  } else if (track->tag == MKTAG('r','t','p',' ')) {
2811  mov_write_hmhd_tag(pb);
2812  } else if (track->tag == MKTAG('t','m','c','d')) {
2813  if (track->mode != MODE_MOV)
2814  mov_write_nmhd_tag(pb);
2815  else
2816  mov_write_gmhd_tag(pb, track);
2817  } else if (track->tag == MKTAG('g','p','m','d')) {
2818  mov_write_gmhd_tag(pb, track);
2819  }
2820  if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
2821  mov_write_hdlr_tag(s, pb, NULL);
2822  mov_write_dinf_tag(pb);
2823  if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2824  return ret;
2825  return update_size(pb, pos);
2826 }
2827 
2828 static int64_t calc_pts_duration(MOVMuxContext *mov, MOVTrack *track)
2829 {
2830  if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) {
2831  // tmcd tracks gets track_duration set in mov_write_moov_tag from
2832  // another track's duration, while the end_pts may be left at zero.
2833  // Calculate the pts duration for that track instead.
2834  return av_rescale(calc_pts_duration(mov, &mov->tracks[track->src_track]),
2835  track->timescale, mov->tracks[track->src_track].timescale);
2836  }
2837  if (track->end_pts != AV_NOPTS_VALUE &&
2838  track->start_dts != AV_NOPTS_VALUE &&
2839  track->start_cts != AV_NOPTS_VALUE) {
2840  return track->end_pts - (track->start_dts + track->start_cts);
2841  }
2842  return track->track_duration;
2843 }
2844 
2845 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2846  MOVTrack *track)
2847 {
2848  int64_t duration = calc_pts_duration(mov, track);
2849  int version = duration < INT32_MAX ? 0 : 1;
2850 
2851  if (track->mode == MODE_ISM)
2852  version = 1;
2853 
2854  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2855  ffio_wfourcc(pb, "mdhd");
2856  avio_w8(pb, version);
2857  avio_wb24(pb, 0); /* flags */
2858  if (version == 1) {
2859  avio_wb64(pb, track->time);
2860  avio_wb64(pb, track->time);
2861  } else {
2862  avio_wb32(pb, track->time); /* creation time */
2863  avio_wb32(pb, track->time); /* modification time */
2864  }
2865  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2866  if (!track->entry && mov->mode == MODE_ISM)
2867  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2868  else if (!track->entry)
2869  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2870  else
2871  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); /* duration */
2872  avio_wb16(pb, track->language); /* language */
2873  avio_wb16(pb, 0); /* reserved (quality) */
2874 
2875  if (version != 0 && track->mode == MODE_MOV) {
2876  av_log(NULL, AV_LOG_ERROR,
2877  "FATAL error, file duration too long for timebase, this file will not be\n"
2878  "playable with QuickTime. Choose a different timebase with "
2879  "-video_track_timescale or a different container format\n");
2880  }
2881 
2882  return 32;
2883 }
2884 
2885 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2886  MOVMuxContext *mov, MOVTrack *track)
2887 {
2888  int64_t pos = avio_tell(pb);
2889  int ret;
2890 
2891  avio_wb32(pb, 0); /* size */
2892  ffio_wfourcc(pb, "mdia");
2893  mov_write_mdhd_tag(pb, mov, track);
2894  mov_write_hdlr_tag(s, pb, track);
2895  if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2896  return ret;
2897  return update_size(pb, pos);
2898 }
2899 
2900 /* transformation matrix
2901  |a b u|
2902  |c d v|
2903  |tx ty w| */
2904 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2905  int16_t d, int16_t tx, int16_t ty)
2906 {
2907  avio_wb32(pb, a << 16); /* 16.16 format */
2908  avio_wb32(pb, b << 16); /* 16.16 format */
2909  avio_wb32(pb, 0); /* u in 2.30 format */
2910  avio_wb32(pb, c << 16); /* 16.16 format */
2911  avio_wb32(pb, d << 16); /* 16.16 format */
2912  avio_wb32(pb, 0); /* v in 2.30 format */
2913  avio_wb32(pb, tx << 16); /* 16.16 format */
2914  avio_wb32(pb, ty << 16); /* 16.16 format */
2915  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2916 }
2917 
2918 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2919  MOVTrack *track, AVStream *st)
2920 {
2921  int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
2922  MOV_TIMESCALE, track->timescale,
2923  AV_ROUND_UP);
2924  int version = duration < INT32_MAX ? 0 : 1;
2925  int flags = MOV_TKHD_FLAG_IN_MOVIE;
2926  int rotation = 0;
2927  int group = 0;
2928 
2929  uint32_t *display_matrix = NULL;
2930  int display_matrix_size, i;
2931 
2932  if (st) {
2933  if (mov->per_stream_grouping)
2934  group = st->index;
2935  else
2936  group = st->codecpar->codec_type;
2937 
2938  display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2939  &display_matrix_size);
2940  if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2941  display_matrix = NULL;
2942  }
2943 
2944  if (track->flags & MOV_TRACK_ENABLED)
2945  flags |= MOV_TKHD_FLAG_ENABLED;
2946 
2947  if (track->mode == MODE_ISM)
2948  version = 1;
2949 
2950  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2951  ffio_wfourcc(pb, "tkhd");
2952  avio_w8(pb, version);
2953  avio_wb24(pb, flags);
2954  if (version == 1) {
2955  avio_wb64(pb, track->time);
2956  avio_wb64(pb, track->time);
2957  } else {
2958  avio_wb32(pb, track->time); /* creation time */
2959  avio_wb32(pb, track->time); /* modification time */
2960  }
2961  avio_wb32(pb, track->track_id); /* track-id */
2962  avio_wb32(pb, 0); /* reserved */
2963  if (!track->entry && mov->mode == MODE_ISM)
2964  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2965  else if (!track->entry)
2966  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2967  else
2968  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2969 
2970  avio_wb32(pb, 0); /* reserved */
2971  avio_wb32(pb, 0); /* reserved */
2972  avio_wb16(pb, 0); /* layer */
2973  avio_wb16(pb, group); /* alternate group) */
2974  /* Volume, only for audio */
2975  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2976  avio_wb16(pb, 0x0100);
2977  else
2978  avio_wb16(pb, 0);
2979  avio_wb16(pb, 0); /* reserved */
2980 
2981  /* Matrix structure */
2982 #if FF_API_OLD_ROTATE_API
2983  if (st && st->metadata) {
2984  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2985  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2986  }
2987 #endif
2988  if (display_matrix) {
2989  for (i = 0; i < 9; i++)
2990  avio_wb32(pb, display_matrix[i]);
2991 #if FF_API_OLD_ROTATE_API
2992  } else if (rotation == 90) {
2993  write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2994  } else if (rotation == 180) {
2995  write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2996  } else if (rotation == 270) {
2997  write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2998 #endif
2999  } else {
3000  write_matrix(pb, 1, 0, 0, 1, 0, 0);
3001  }
3002  /* Track width and height, for visual only */
3003  if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
3004  track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
3005  int64_t track_width_1616;
3006  if (track->mode == MODE_MOV) {
3007  track_width_1616 = track->par->width * 0x10000ULL;
3008  } else {
3009  track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
3010  track->par->width * 0x10000LL,
3011  st->sample_aspect_ratio.den);
3012  if (!track_width_1616 ||
3013  track->height != track->par->height ||
3014  track_width_1616 > UINT32_MAX)
3015  track_width_1616 = track->par->width * 0x10000ULL;
3016  }
3017  if (track_width_1616 > UINT32_MAX) {
3018  av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
3019  track_width_1616 = 0;
3020  }
3021  avio_wb32(pb, track_width_1616);
3022  if (track->height > 0xFFFF) {
3023  av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
3024  avio_wb32(pb, 0);
3025  } else
3026  avio_wb32(pb, track->height * 0x10000U);
3027  } else {
3028  avio_wb32(pb, 0);
3029  avio_wb32(pb, 0);
3030  }
3031  return 0x5c;
3032 }
3033 
3034 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
3035 {
3036  int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
3037  track->par->sample_aspect_ratio.den);
3038 
3039  int64_t pos = avio_tell(pb);
3040 
3041  avio_wb32(pb, 0); /* size */
3042  ffio_wfourcc(pb, "tapt");
3043 
3044  avio_wb32(pb, 20);
3045  ffio_wfourcc(pb, "clef");
3046  avio_wb32(pb, 0);
3047  avio_wb32(pb, width << 16);
3048  avio_wb32(pb, track->par->height << 16);
3049 
3050  avio_wb32(pb, 20);
3051  ffio_wfourcc(pb, "prof");
3052  avio_wb32(pb, 0);
3053  avio_wb32(pb, width << 16);
3054  avio_wb32(pb, track->par->height << 16);
3055 
3056  avio_wb32(pb, 20);
3057  ffio_wfourcc(pb, "enof");
3058  avio_wb32(pb, 0);
3059  avio_wb32(pb, track->par->width << 16);
3060  avio_wb32(pb, track->par->height << 16);
3061 
3062  return update_size(pb, pos);
3063 }
3064 
3065 // This box seems important for the psp playback ... without it the movie seems to hang
3066 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
3067  MOVTrack *track)
3068 {
3069  int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
3070  MOV_TIMESCALE, track->timescale,
3071  AV_ROUND_UP);
3072  int version = duration < INT32_MAX ? 0 : 1;
3073  int entry_size, entry_count, size;
3074  int64_t delay, start_ct = track->start_cts;
3075  int64_t start_dts = track->start_dts;
3076 
3077  if (track->entry) {
3078  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
3079 
3080  av_log(mov->fc, AV_LOG_DEBUG,
3081  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
3082  track->cluster[0].dts, track->cluster[0].cts,
3083  start_dts, start_ct, track->track_id);
3084  start_dts = track->cluster[0].dts;
3085  start_ct = track->cluster[0].cts;
3086  }
3087  }
3088 
3089  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
3090  track->timescale, AV_ROUND_DOWN);
3091  version |= delay < INT32_MAX ? 0 : 1;
3092 
3093  entry_size = (version == 1) ? 20 : 12;
3094  entry_count = 1 + (delay > 0);
3095  size = 24 + entry_count * entry_size;
3096 
3097  /* write the atom data */
3098  avio_wb32(pb, size);
3099  ffio_wfourcc(pb, "edts");
3100  avio_wb32(pb, size - 8);
3101  ffio_wfourcc(pb, "elst");
3102  avio_w8(pb, version);
3103  avio_wb24(pb, 0); /* flags */
3104 
3105  avio_wb32(pb, entry_count);
3106  if (delay > 0) { /* add an empty edit to delay presentation */
3107  /* In the positive delay case, the delay includes the cts
3108  * offset, and the second edit list entry below trims out
3109  * the same amount from the actual content. This makes sure
3110  * that the offset last sample is included in the edit
3111  * list duration as well. */
3112  if (version == 1) {
3113  avio_wb64(pb, delay);
3114  avio_wb64(pb, -1);
3115  } else {
3116  avio_wb32(pb, delay);
3117  avio_wb32(pb, -1);
3118  }
3119  avio_wb32(pb, 0x00010000);
3120  } else {
3121  /* Avoid accidentally ending up with start_ct = -1 which has got a
3122  * special meaning. Normally start_ct should end up positive or zero
3123  * here, but use FFMIN in case dts is a small positive integer
3124  * rounded to 0 when represented in MOV_TIMESCALE units. */
3125  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
3126  start_ct = -FFMIN(start_dts, 0);
3127  /* Note, this delay is calculated from the pts of the first sample,
3128  * ensuring that we don't reduce the duration for cases with
3129  * dts<0 pts=0. */
3130  duration += delay;
3131  }
3132 
3133  /* For fragmented files, we don't know the full length yet. Setting
3134  * duration to 0 allows us to only specify the offset, including
3135  * the rest of the content (from all future fragments) without specifying
3136  * an explicit duration. */
3137  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3138  duration = 0;
3139 
3140  /* duration */
3141  if (version == 1) {
3142  avio_wb64(pb, duration);
3143  avio_wb64(pb, start_ct);
3144  } else {
3145  avio_wb32(pb, duration);
3146  avio_wb32(pb, start_ct);
3147  }
3148  avio_wb32(pb, 0x00010000);
3149  return size;
3150 }
3151 
3152 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3153 {
3154  avio_wb32(pb, 20); // size
3155  ffio_wfourcc(pb, "tref");
3156  avio_wb32(pb, 12); // size (subatom)
3157  avio_wl32(pb, track->tref_tag);
3158  avio_wb32(pb, track->tref_id);
3159  return 20;
3160 }
3161 
3162 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3163 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
3164 {
3165  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3166  ffio_wfourcc(pb, "uuid");
3167  ffio_wfourcc(pb, "USMT");
3168  avio_wb32(pb, 0x21d24fce);
3169  avio_wb32(pb, 0xbb88695c);
3170  avio_wb32(pb, 0xfac9c740);
3171  avio_wb32(pb, 0x1c); // another size here!
3172  ffio_wfourcc(pb, "MTDT");
3173  avio_wb32(pb, 0x00010012);
3174  avio_wb32(pb, 0x0a);
3175  avio_wb32(pb, 0x55c40000);
3176  avio_wb32(pb, 0x1);
3177  avio_wb32(pb, 0x0);
3178  return 0x34;
3179 }
3180 
3181 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3182 {
3183  AVFormatContext *ctx = track->rtp_ctx;
3184  char buf[1000] = "";
3185  int len;
3186 
3187  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3188  NULL, NULL, 0, 0, ctx);
3189  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3190  len = strlen(buf);
3191 
3192  avio_wb32(pb, len + 24);
3193  ffio_wfourcc(pb, "udta");
3194  avio_wb32(pb, len + 16);
3195  ffio_wfourcc(pb, "hnti");
3196  avio_wb32(pb, len + 8);
3197  ffio_wfourcc(pb, "sdp ");
3198  avio_write(pb, buf, len);
3199  return len + 24;
3200 }
3201 
3202 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
3203  const char *tag, const char *str)
3204 {
3205  int64_t pos = avio_tell(pb);
3206  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3207  if (!t || !utf8len(t->value))
3208  return 0;
3209 
3210  avio_wb32(pb, 0); /* size */
3211  ffio_wfourcc(pb, tag); /* type */
3212  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3213  return update_size(pb, pos);
3214 }
3215 
3216 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3217  AVStream *st)
3218 {
3219  AVIOContext *pb_buf;
3220  int ret, size;
3221  uint8_t *buf;
3222 
3223  if (!st)
3224  return 0;
3225 
3226  ret = avio_open_dyn_buf(&pb_buf);
3227  if (ret < 0)
3228  return ret;
3229 
3230  if (mov->mode & (MODE_MP4|MODE_MOV))
3231  mov_write_track_metadata(pb_buf, st, "name", "title");
3232 
3233  if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3234  avio_wb32(pb, size + 8);
3235  ffio_wfourcc(pb, "udta");
3236  avio_write(pb, buf, size);
3237  }
3238  ffio_free_dyn_buf(&pb_buf);
3239 
3240  return 0;
3241 }
3242 
3243 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
3244  MOVTrack *track, AVStream *st)
3245 {
3246  int64_t pos = avio_tell(pb);
3247  int entry_backup = track->entry;
3248  int chunk_backup = track->chunkCount;
3249  int ret;
3250 
3251  /* If we want to have an empty moov, but some samples already have been
3252  * buffered (delay_moov), pretend that no samples have been written yet. */
3253  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3254  track->chunkCount = track->entry = 0;
3255 
3256  avio_wb32(pb, 0); /* size */
3257  ffio_wfourcc(pb, "trak");
3258  mov_write_tkhd_tag(pb, mov, track, st);
3259 
3260  av_assert2(mov->use_editlist >= 0);
3261 
3262  if (track->start_dts != AV_NOPTS_VALUE) {
3263  if (mov->use_editlist)
3264  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3265  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3266  av_log(mov->fc, AV_LOG_WARNING,
3267  "Not writing any edit list even though one would have been required\n");
3268  }
3269 
3270  if (track->tref_tag)
3271  mov_write_tref_tag(pb, track);
3272 
3273  if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3274  return ret;
3275  if (track->mode == MODE_PSP)
3276  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3277  if (track->tag == MKTAG('r','t','p',' '))
3278  mov_write_udta_sdp(pb, track);
3279  if (track->mode == MODE_MOV) {
3280  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3281  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3282  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3283  mov_write_tapt_tag(pb, track);
3284  }
3285  }
3286  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3287  mov_write_tapt_tag(pb, track);
3288  }
3289  }
3290  mov_write_track_udta_tag(pb, mov, st);
3291  track->entry = entry_backup;
3292  track->chunkCount = chunk_backup;
3293  return update_size(pb, pos);
3294 }
3295 
3296 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
3297 {
3298  int i, has_audio = 0, has_video = 0;
3299  int64_t pos = avio_tell(pb);
3300  int audio_profile = mov->iods_audio_profile;
3301  int video_profile = mov->iods_video_profile;
3302  for (i = 0; i < mov->nb_streams; i++) {
3303  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3304  has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3305  has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3306  }
3307  }
3308  if (audio_profile < 0)
3309  audio_profile = 0xFF - has_audio;
3310  if (video_profile < 0)
3311  video_profile = 0xFF - has_video;
3312  avio_wb32(pb, 0x0); /* size */
3313  ffio_wfourcc(pb, "iods");
3314  avio_wb32(pb, 0); /* version & flags */
3315  put_descr(pb, 0x10, 7);
3316  avio_wb16(pb, 0x004f);
3317  avio_w8(pb, 0xff);
3318  avio_w8(pb, 0xff);
3319  avio_w8(pb, audio_profile);
3320  avio_w8(pb, video_profile);
3321  avio_w8(pb, 0xff);
3322  return update_size(pb, pos);
3323 }
3324 
3325 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3326 {
3327  avio_wb32(pb, 0x20); /* size */
3328  ffio_wfourcc(pb, "trex");
3329  avio_wb32(pb, 0); /* version & flags */
3330  avio_wb32(pb, track->track_id); /* track ID */
3331  avio_wb32(pb, 1); /* default sample description index */
3332  avio_wb32(pb, 0); /* default sample duration */
3333  avio_wb32(pb, 0); /* default sample size */
3334  avio_wb32(pb, 0); /* default sample flags */
3335  return 0;
3336 }
3337 
3338 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
3339 {
3340  int64_t pos = avio_tell(pb);
3341  int i;
3342  avio_wb32(pb, 0x0); /* size */
3343  ffio_wfourcc(pb, "mvex");
3344  for (i = 0; i < mov->nb_streams; i++)
3345  mov_write_trex_tag(pb, &mov->tracks[i]);
3346  return update_size(pb, pos);
3347 }
3348 
3349 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3350 {
3351  int max_track_id = 1, i;
3352  int64_t max_track_len = 0;
3353  int version;
3354 
3355  for (i = 0; i < mov->nb_streams; i++) {
3356  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3357  int64_t max_track_len_temp = av_rescale_rnd(
3358  calc_pts_duration(mov, &mov->tracks[i]),
3359  MOV_TIMESCALE,
3360  mov->tracks[i].timescale,
3361  AV_ROUND_UP);
3362  if (max_track_len < max_track_len_temp)
3363  max_track_len = max_track_len_temp;
3364  if (max_track_id < mov->tracks[i].track_id)
3365  max_track_id = mov->tracks[i].track_id;
3366  }
3367  }
3368  /* If using delay_moov, make sure the output is the same as if no
3369  * samples had been written yet. */
3370  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3371  max_track_len = 0;
3372  max_track_id = 1;
3373  }
3374 
3375  version = max_track_len < UINT32_MAX ? 0 : 1;
3376  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3377 
3378  ffio_wfourcc(pb, "mvhd");
3379  avio_w8(pb, version);
3380  avio_wb24(pb, 0); /* flags */
3381  if (version == 1) {
3382  avio_wb64(pb, mov->time);
3383  avio_wb64(pb, mov->time);
3384  } else {
3385  avio_wb32(pb, mov->time); /* creation time */
3386  avio_wb32(pb, mov->time); /* modification time */
3387  }
3388  avio_wb32(pb, MOV_TIMESCALE);
3389  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3390 
3391  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3392  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3393  avio_wb16(pb, 0); /* reserved */
3394  avio_wb32(pb, 0); /* reserved */
3395  avio_wb32(pb, 0); /* reserved */
3396 
3397  /* Matrix structure */
3398  write_matrix(pb, 1, 0, 0, 1, 0, 0);
3399 
3400  avio_wb32(pb, 0); /* reserved (preview time) */
3401  avio_wb32(pb, 0); /* reserved (preview duration) */
3402  avio_wb32(pb, 0); /* reserved (poster time) */
3403  avio_wb32(pb, 0); /* reserved (selection time) */
3404  avio_wb32(pb, 0); /* reserved (selection duration) */
3405  avio_wb32(pb, 0); /* reserved (current time) */
3406  avio_wb32(pb, max_track_id + 1); /* Next track id */
3407  return 0x6c;
3408 }
3409 
3410 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3411  AVFormatContext *s)
3412 {
3413  avio_wb32(pb, 33); /* size */
3414  ffio_wfourcc(pb, "hdlr");
3415  avio_wb32(pb, 0);
3416  avio_wb32(pb, 0);
3417  ffio_wfourcc(pb, "mdir");
3418  ffio_wfourcc(pb, "appl");
3419  avio_wb32(pb, 0);
3420  avio_wb32(pb, 0);
3421  avio_w8(pb, 0);
3422  return 33;
3423 }
3424 
3425 /* helper function to write a data tag with the specified string as data */
3426 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3427 {
3428  if (long_style) {
3429  int size = 16 + strlen(data);
3430  avio_wb32(pb, size); /* size */
3431  ffio_wfourcc(pb, "data");
3432  avio_wb32(pb, 1);
3433  avio_wb32(pb, 0);
3434  avio_write(pb, data, strlen(data));
3435  return size;
3436  } else {
3437  if (!lang)
3438  lang = ff_mov_iso639_to_lang("und", 1);
3439  avio_wb16(pb, strlen(data)); /* string length */
3440  avio_wb16(pb, lang);
3441  avio_write(pb, data, strlen(data));
3442  return strlen(data) + 4;
3443  }
3444 }
3445 
3446 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3447  const char *value, int lang, int long_style)
3448 {
3449  int size = 0;
3450  if (value && value[0]) {
3451  int64_t pos = avio_tell(pb);
3452  avio_wb32(pb, 0); /* size */
3453  ffio_wfourcc(pb, name);
3454  mov_write_string_data_tag(pb, value, lang, long_style);
3455  size = update_size(pb, pos);
3456  }
3457  return size;
3458 }
3459 
3460 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
3461  const char *tag, int *lang)
3462 {
3463  int l, len, len2;
3464  AVDictionaryEntry *t, *t2 = NULL;
3465  char tag2[16];
3466 
3467  *lang = 0;
3468 
3469  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3470  return NULL;
3471 
3472  len = strlen(t->key);
3473  snprintf(tag2, sizeof(tag2), "%s-", tag);
3474  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3475  len2 = strlen(t2->key);
3476  if (len2 == len + 4 && !strcmp(t->value, t2->value)
3477  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3478  *lang = l;
3479  return t;
3480  }
3481  }
3482  return t;
3483 }
3484 
3485 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
3486  const char *name, const char *tag,
3487  int long_style)
3488 {
3489  int lang;
3490  AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3491  if (!t)
3492  return 0;
3493  return mov_write_string_tag(pb, name, t->value, lang, long_style);
3494 }
3495 
3496 /* iTunes bpm number */
3497 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
3498 {
3499  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3500  int size = 0, tmpo = t ? atoi(t->value) : 0;
3501  if (tmpo) {
3502  size = 26;
3503  avio_wb32(pb, size);
3504  ffio_wfourcc(pb, "tmpo");
3505  avio_wb32(pb, size-8); /* size */
3506  ffio_wfourcc(pb, "data");
3507  avio_wb32(pb, 0x15); //type specifier
3508  avio_wb32(pb, 0);
3509  avio_wb16(pb, tmpo); // data
3510  }
3511  return size;
3512 }
3513 
3514 /* 3GPP TS 26.244 */
3515 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
3516 {
3517  int lang;
3518  int64_t pos = avio_tell(pb);
3519  double latitude, longitude, altitude;
3520  int32_t latitude_fix, longitude_fix, altitude_fix;
3521  AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3522  const char *ptr, *place = "";
3523  char *end;
3524  static const char *astronomical_body = "earth";
3525  if (!t)
3526  return 0;
3527 
3528  ptr = t->value;
3529  longitude = strtod(ptr, &end);
3530  if (end == ptr) {
3531  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3532  return 0;
3533  }
3534  ptr = end;
3535  latitude = strtod(ptr, &end);
3536  if (end == ptr) {
3537  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3538  return 0;
3539  }
3540  ptr = end;
3541  altitude = strtod(ptr, &end);
3542  /* If no altitude was present, the default 0 should be fine */
3543  if (*end == '/')
3544  place = end + 1;
3545 
3546  latitude_fix = (int32_t) ((1 << 16) * latitude);
3547  longitude_fix = (int32_t) ((1 << 16) * longitude);
3548  altitude_fix = (int32_t) ((1 << 16) * altitude);
3549 
3550  avio_wb32(pb, 0); /* size */
3551  ffio_wfourcc(pb, "loci"); /* type */
3552  avio_wb32(pb, 0); /* version + flags */
3553  avio_wb16(pb, lang);
3554  avio_write(pb, place, strlen(place) + 1);
3555  avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3556  avio_wb32(pb, latitude_fix);
3557  avio_wb32(pb, longitude_fix);
3558  avio_wb32(pb, altitude_fix);
3559  avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3560  avio_w8(pb, 0); /* additional notes, null terminated string */
3561 
3562  return update_size(pb, pos);
3563 }
3564 
3565 /* iTunes track or disc number */
3566 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
3567  AVFormatContext *s, int disc)
3568 {
3569  AVDictionaryEntry *t = av_dict_get(s->metadata,
3570  disc ? "disc" : "track",
3571  NULL, 0);
3572  int size = 0, track = t ? atoi(t->value) : 0;
3573  if (track) {
3574  int tracks = 0;
3575  char *slash = strchr(t->value, '/');
3576  if (slash)
3577  tracks = atoi(slash + 1);
3578  avio_wb32(pb, 32); /* size */
3579  ffio_wfourcc(pb, disc ? "disk" : "trkn");
3580  avio_wb32(pb, 24); /* size */
3581  ffio_wfourcc(pb, "data");
3582  avio_wb32(pb, 0); // 8 bytes empty
3583  avio_wb32(pb, 0);
3584  avio_wb16(pb, 0); // empty
3585  avio_wb16(pb, track); // track / disc number
3586  avio_wb16(pb, tracks); // total track / disc number
3587  avio_wb16(pb, 0); // empty
3588  size = 32;
3589  }
3590  return size;
3591 }
3592 
3593 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
3594  const char *name, const char *tag,
3595  int len)
3596 {
3597  AVDictionaryEntry *t = NULL;
3598  uint8_t num;
3599  int size = 24 + len;
3600 
3601  if (len != 1 && len != 4)
3602  return -1;
3603 
3604  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3605  return 0;
3606  num = atoi(t->value);
3607 
3608  avio_wb32(pb, size);
3609  ffio_wfourcc(pb, name);
3610  avio_wb32(pb, size - 8);
3611  ffio_wfourcc(pb, "data");
3612  avio_wb32(pb, 0x15);
3613  avio_wb32(pb, 0);
3614  if (len==4) avio_wb32(pb, num);
3615  else avio_w8 (pb, num);
3616 
3617  return size;
3618 }
3619 
3620 static int mov_write_covr(AVIOContext *pb, AVFormatContext *s)
3621 {
3622  MOVMuxContext *mov = s->priv_data;
3623  int64_t pos = 0;
3624  int i;
3625 
3626  for (i = 0; i < s->nb_streams; i++) {
3627  MOVTrack *trk = &mov->tracks[i];
3628 
3629  if (!is_cover_image(trk->st) || trk->cover_image.size <= 0)
3630  continue;
3631 
3632  if (!pos) {
3633  pos = avio_tell(pb);
3634  avio_wb32(pb, 0);
3635  ffio_wfourcc(pb, "covr");
3636  }
3637  avio_wb32(pb, 16 + trk->cover_image.size);
3638  ffio_wfourcc(pb, "data");
3639  avio_wb32(pb, trk->tag);
3640  avio_wb32(pb , 0);
3641  avio_write(pb, trk->cover_image.data, trk->cover_image.size);
3642  }
3643 
3644  return pos ? update_size(pb, pos) : 0;
3645 }
3646 
3647 /* iTunes meta data list */
3648 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3649  AVFormatContext *s)
3650 {
3651  int64_t pos = avio_tell(pb);
3652  avio_wb32(pb, 0); /* size */
3653  ffio_wfourcc(pb, "ilst");
3654  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3655  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3656  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3657  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3658  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3659  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3660  if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3661  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3662  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3663  }
3664  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3665  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3666  mov_write_string_metadata(s, pb, "cprt", "copyright", 1);
3667  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3668  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3669  mov_write_string_metadata(s, pb, "desc", "description",1);
3670  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3671  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3672  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3673  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3674  mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3675  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3676  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3677  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3678  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3679  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3680  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3681  mov_write_covr(pb, s);
3682  mov_write_trkn_tag(pb, mov, s, 0); // track number
3683  mov_write_trkn_tag(pb, mov, s, 1); // disc number
3684  mov_write_tmpo_tag(pb, s);
3685  return update_size(pb, pos);
3686 }
3687 
3688 static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3689  AVFormatContext *s)
3690 {
3691  avio_wb32(pb, 33); /* size */
3692  ffio_wfourcc(pb, "hdlr");
3693  avio_wb32(pb, 0);
3694  avio_wb32(pb, 0);
3695  ffio_wfourcc(pb, "mdta");
3696  avio_wb32(pb, 0);
3697  avio_wb32(pb, 0);
3698  avio_wb32(pb, 0);
3699  avio_w8(pb, 0);
3700  return 33;
3701 }
3702 
3703 static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov,
3704  AVFormatContext *s)
3705 {
3706  AVDictionaryEntry *t = NULL;
3707  int64_t pos = avio_tell(pb);
3708  int64_t curpos, entry_pos;
3709  int count = 0;
3710 
3711  avio_wb32(pb, 0); /* size */
3712  ffio_wfourcc(pb, "keys");
3713  avio_wb32(pb, 0);
3714  entry_pos = avio_tell(pb);
3715  avio_wb32(pb, 0); /* entry count */
3716 
3717  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3718  avio_wb32(pb, strlen(t->key) + 8);
3719  ffio_wfourcc(pb, "mdta");
3720  avio_write(pb, t->key, strlen(t->key));
3721  count += 1;
3722  }
3723  curpos = avio_tell(pb);
3724  avio_seek(pb, entry_pos, SEEK_SET);
3725  avio_wb32(pb, count); // rewrite entry count
3726  avio_seek(pb, curpos, SEEK_SET);
3727 
3728  return update_size(pb, pos);
3729 }
3730 
3731 static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3732  AVFormatContext *s)
3733 {
3734  AVDictionaryEntry *t = NULL;
3735  int64_t pos = avio_tell(pb);
3736  int count = 1; /* keys are 1-index based */
3737 
3738  avio_wb32(pb, 0); /* size */
3739  ffio_wfourcc(pb, "ilst");
3740 
3741  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3742  int64_t entry_pos = avio_tell(pb);
3743  avio_wb32(pb, 0); /* size */
3744  avio_wb32(pb, count); /* key */
3745  mov_write_string_data_tag(pb, t->value, 0, 1);
3746  update_size(pb, entry_pos);
3747  count += 1;
3748  }
3749  return update_size(pb, pos);
3750 }
3751 
3752 /* meta data tags */
3753 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3754  AVFormatContext *s)
3755 {
3756  int size = 0;
3757  int64_t pos = avio_tell(pb);
3758  avio_wb32(pb, 0); /* size */
3759  ffio_wfourcc(pb, "meta");
3760  avio_wb32(pb, 0);
3761  if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3762  mov_write_mdta_hdlr_tag(pb, mov, s);
3763  mov_write_mdta_keys_tag(pb, mov, s);
3764  mov_write_mdta_ilst_tag(pb, mov, s);
3765  }
3766  else {
3767  /* iTunes metadata tag */
3768  mov_write_itunes_hdlr_tag(pb, mov, s);
3769  mov_write_ilst_tag(pb, mov, s);
3770  }
3771  size = update_size(pb, pos);
3772  return size;
3773 }
3774 
3775 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3776  const char *name, const char *key)
3777 {
3778  int len;
3779  AVDictionaryEntry *t;
3780 
3781  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3782  return 0;
3783 
3784  len = strlen(t->value);
3785  if (len > 0) {
3786  int size = len + 8;
3787  avio_wb32(pb, size);
3788  ffio_wfourcc(pb, name);
3789  avio_write(pb, t->value, len);
3790  return size;
3791  }
3792  return 0;
3793 }
3794 
3795 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3796 {
3797  int val;
3798  while (*b) {
3799  GET_UTF8(val, *b++, return -1;)
3800  avio_wb16(pb, val);
3801  }
3802  avio_wb16(pb, 0x00);
3803  return 0;
3804 }
3805 
3806 static uint16_t language_code(const char *str)
3807 {
3808  return (((str[0] - 0x60) & 0x1F) << 10) +
3809  (((str[1] - 0x60) & 0x1F) << 5) +
3810  (( str[2] - 0x60) & 0x1F);
3811 }
3812 
3813 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3814  const char *tag, const char *str)
3815 {
3816  int64_t pos = avio_tell(pb);
3817  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3818  if (!t || !utf8len(t->value))
3819  return 0;
3820  avio_wb32(pb, 0); /* size */
3821  ffio_wfourcc(pb, tag); /* type */
3822  avio_wb32(pb, 0); /* version + flags */
3823  if (!strcmp(tag, "yrrc"))
3824  avio_wb16(pb, atoi(t->value));
3825  else {
3826  avio_wb16(pb, language_code("eng")); /* language */
3827  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3828  if (!strcmp(tag, "albm") &&
3829  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3830  avio_w8(pb, atoi(t->value));
3831  }
3832  return update_size(pb, pos);
3833 }
3834 
3835 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3836 {
3837  int64_t pos = avio_tell(pb);
3838  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3839 
3840  avio_wb32(pb, 0); // size
3841  ffio_wfourcc(pb, "chpl");
3842  avio_wb32(pb, 0x01000000); // version + flags
3843  avio_wb32(pb, 0); // unknown
3844  avio_w8(pb, nb_chapters);
3845 
3846  for (i = 0; i < nb_chapters; i++) {
3847  AVChapter *c = s->chapters[i];
3848  AVDictionaryEntry *t;
3849  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3850 
3851  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3852  int len = FFMIN(strlen(t->value), 255);
3853  avio_w8(pb, len);
3854  avio_write(pb, t->value, len);
3855  } else
3856  avio_w8(pb, 0);
3857  }
3858  return update_size(pb, pos);
3859 }
3860 
3861 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3862  AVFormatContext *s)
3863 {
3864  AVIOContext *pb_buf;
3865  int ret, size;
3866  uint8_t *buf;
3867 
3868  ret = avio_open_dyn_buf(&pb_buf);
3869  if (ret < 0)
3870  return ret;
3871 
3872  if (mov->mode & MODE_3GP) {
3873  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3874  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3875  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3876  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3877  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3878  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3879  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3880  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3881  mov_write_loci_tag(s, pb_buf);
3882  } 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
3883  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3884  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3885  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3886  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3887  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3888  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3889  // currently ignored by mov.c
3890  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3891  // add support for libquicktime, this atom is also actually read by mov.c
3892  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3893  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3894  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3895  mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3896  mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3897  mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3898  mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
3899  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3900  } else {
3901  /* iTunes meta data */
3902  mov_write_meta_tag(pb_buf, mov, s);
3903  mov_write_loci_tag(s, pb_buf);
3904  }
3905 
3906  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3907  mov_write_chpl_tag(pb_buf, s);
3908 
3909  if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3910  avio_wb32(pb, size + 8);
3911  ffio_wfourcc(pb, "udta");
3912  avio_write(pb, buf, size);
3913  }
3914  ffio_free_dyn_buf(&pb_buf);
3915 
3916  return 0;
3917 }
3918 
3919 static void mov_write_psp_udta_tag(AVIOContext *pb,
3920  const char *str, const char *lang, int type)
3921 {
3922  int len = utf8len(str) + 1;
3923  if (len <= 0)
3924  return;
3925  avio_wb16(pb, len * 2 + 10); /* size */
3926  avio_wb32(pb, type); /* type */
3927  avio_wb16(pb, language_code(lang)); /* language */
3928  avio_wb16(pb, 0x01); /* ? */
3929  ascii_to_wc(pb, str);
3930 }
3931 
3932 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3933 {
3934  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3935  int64_t pos, pos2;
3936 
3937  if (title) {
3938  pos = avio_tell(pb);
3939  avio_wb32(pb, 0); /* size placeholder*/
3940  ffio_wfourcc(pb, "uuid");
3941  ffio_wfourcc(pb, "USMT");
3942  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3943  avio_wb32(pb, 0xbb88695c);
3944  avio_wb32(pb, 0xfac9c740);
3945 
3946  pos2 = avio_tell(pb);
3947  avio_wb32(pb, 0); /* size placeholder*/
3948  ffio_wfourcc(pb, "MTDT");
3949  avio_wb16(pb, 4);
3950 
3951  // ?
3952  avio_wb16(pb, 0x0C); /* size */
3953  avio_wb32(pb, 0x0B); /* type */
3954  avio_wb16(pb, language_code("und")); /* language */
3955  avio_wb16(pb, 0x0); /* ? */
3956  avio_wb16(pb, 0x021C); /* data */
3957 
3958  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3959  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3960  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3961  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3962 
3963  update_size(pb, pos2);
3964  return update_size(pb, pos);
3965  }
3966 
3967  return 0;
3968 }
3969 
3970 static void build_chunks(MOVTrack *trk)
3971 {
3972  int i;
3973  MOVIentry *chunk = &trk->cluster[0];
3974  uint64_t chunkSize = chunk->size;
3975  chunk->chunkNum = 1;
3976  if (trk->chunkCount)
3977  return;
3978  trk->chunkCount = 1;
3979  for (i = 1; i<trk->entry; i++){
3980  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3981  chunkSize + trk->cluster[i].size < (1<<20)){
3982  chunkSize += trk->cluster[i].size;
3983  chunk->samples_in_chunk += trk->cluster[i].entries;
3984  } else {
3985  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3986  chunk=&trk->cluster[i];
3987  chunkSize = chunk->size;
3988  trk->chunkCount++;
3989  }
3990  }
3991 }
3992 
3993 /**
3994  * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
3995  * the stream ids are used as track ids.
3996  *
3997  * This assumes mov->tracks and s->streams are in the same order and
3998  * there are no gaps in either of them (so mov->tracks[n] refers to
3999  * s->streams[n]).
4000  *
4001  * As an exception, there can be more entries in
4002  * s->streams than in mov->tracks, in which case new track ids are
4003  * generated (starting after the largest found stream id).
4004  */
4005 static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
4006 {
4007  int i;
4008 
4009  if (mov->track_ids_ok)
4010  return 0;
4011 
4012  if (mov->use_stream_ids_as_track_ids) {
4013  int next_generated_track_id = 0;
4014  for (i = 0; i < s->nb_streams; i++) {
4015  if (s->streams[i]->id > next_generated_track_id)
4016  next_generated_track_id = s->streams[i]->id;
4017  }
4018 
4019  for (i = 0; i < mov->nb_streams; i++) {
4020  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4021  continue;
4022 
4023  mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
4024  }
4025  } else {
4026  for (i = 0; i < mov->nb_streams; i++) {
4027  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4028  continue;
4029 
4030  mov->tracks[i].track_id = i + 1;
4031  }
4032  }
4033 
4034  mov->track_ids_ok = 1;
4035 
4036  return 0;
4037 }
4038 
4039 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
4040  AVFormatContext *s)
4041 {
4042  int i;
4043  int64_t pos = avio_tell(pb);
4044  avio_wb32(pb, 0); /* size placeholder*/
4045  ffio_wfourcc(pb, "moov");
4046 
4047  mov_setup_track_ids(mov, s);
4048 
4049  for (i = 0; i < mov->nb_streams; i++) {
4050  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4051  continue;
4052 
4053  mov->tracks[i].time = mov->time;
4054 
4055  if (mov->tracks[i].entry)
4056  build_chunks(&mov->tracks[i]);
4057  }
4058 
4059  if (mov->chapter_track)
4060  for (i = 0; i < s->nb_streams; i++) {
4061  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
4062  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
4063  }
4064  for (i = 0; i < mov->nb_streams; i++) {
4065  MOVTrack *track = &mov->tracks[i];
4066  if (track->tag == MKTAG('r','t','p',' ')) {
4067  track->tref_tag = MKTAG('h','i','n','t');
4068  track->tref_id = mov->tracks[track->src_track].track_id;
4069  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4070  int * fallback, size;
4071  fallback = (int*)av_stream_get_side_data(track->st,
4072  AV_PKT_DATA_FALLBACK_TRACK,
4073  &size);
4074  if (fallback != NULL && size == sizeof(int)) {
4075  if (*fallback >= 0 && *fallback < mov->nb_streams) {
4076  track->tref_tag = MKTAG('f','a','l','l');
4077  track->tref_id = mov->tracks[*fallback].track_id;
4078  }
4079  }
4080  }
4081  }
4082  for (i = 0; i < mov->nb_streams; i++) {
4083  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
4084  int src_trk = mov->tracks[i].src_track;
4085  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
4086  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
4087  //src_trk may have a different timescale than the tmcd track
4088  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
4089  mov->tracks[i].timescale,
4090  mov->tracks[src_trk].timescale);
4091  }
4092  }
4093 
4094  mov_write_mvhd_tag(pb, mov);
4095  if (mov->mode != MODE_MOV && !mov->iods_skip)
4096  mov_write_iods_tag(pb, mov);
4097  for (i = 0; i < mov->nb_streams; i++) {
4098  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
4099  int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
4100  if (ret < 0)
4101  return ret;
4102  }
4103  }
4104  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4105  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
4106 
4107  if (mov->mode == MODE_PSP)
4108  mov_write_uuidusmt_tag(pb, s);
4109  else
4110  mov_write_udta_tag(pb, mov, s);
4111 
4112  return update_size(pb, pos);
4113 }
4114 
4115 static void param_write_int(AVIOContext *pb, const char *name, int value)
4116 {
4117  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
4118 }
4119 
4120 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
4121 {
4122  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
4123 }
4124 
4125 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
4126 {
4127  char buf[150];
4128  len = FFMIN(sizeof(buf) / 2 - 1, len);
4129  ff_data_to_hex(buf, value, len, 0);
4130  buf[2 * len] = '\0';
4131  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
4132 }
4133 
4134 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
4135 {
4136  int64_t pos = avio_tell(pb);
4137  int i;
4138  int64_t manifest_bit_rate = 0;
4139  AVCPBProperties *props = NULL;
4140 
4141  static const uint8_t uuid[] = {
4142  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4143  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4144  };
4145 
4146  avio_wb32(pb, 0);
4147  ffio_wfourcc(pb, "uuid");
4148  avio_write(pb, uuid, sizeof(uuid));
4149  avio_wb32(pb, 0);
4150 
4151  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
4152  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
4153  avio_printf(pb, "<head>\n");
4154  if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
4155  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
4156