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 "config_components.h"
25 
26 #include <stdint.h>
27 #include <inttypes.h>
28 
29 #include "movenc.h"
30 #include "avformat.h"
31 #include "avio_internal.h"
32 #include "dovi_isom.h"
33 #include "riff.h"
34 #include "avio.h"
35 #include "iamf_writer.h"
36 #include "isom.h"
37 #include "av1.h"
38 #include "avc.h"
39 #include "evc.h"
41 #include "libavcodec/dnxhddata.h"
42 #include "libavcodec/flac.h"
43 #include "libavcodec/get_bits.h"
44 
45 #include "libavcodec/internal.h"
46 #include "libavcodec/put_bits.h"
47 #include "libavcodec/vc1_common.h"
48 #include "libavcodec/raw.h"
49 #include "internal.h"
50 #include "libavutil/avstring.h"
52 #include "libavutil/csp.h"
53 #include "libavutil/intfloat.h"
54 #include "libavutil/mathematics.h"
55 #include "libavutil/libm.h"
56 #include "libavutil/mem.h"
57 #include "libavutil/opt.h"
58 #include "libavutil/dict.h"
59 #include "libavutil/pixdesc.h"
60 #include "libavutil/stereo3d.h"
61 #include "libavutil/timecode.h"
62 #include "libavutil/dovi_meta.h"
63 #include "libavutil/uuid.h"
64 #include "hevc.h"
65 #include "rtpenc.h"
66 #include "mov_chan.h"
67 #include "movenc_ttml.h"
68 #include "mux.h"
69 #include "rawutils.h"
70 #include "ttmlenc.h"
71 #include "version.h"
72 #include "vpcc.h"
73 #include "vvc.h"
74 
75 static const AVOption options[] = {
76  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
77  { "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},
78  { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
79  { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
80  { "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 },
81  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
82  { "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 },
83  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
84  { "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},
85  { "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},
86  { "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},
87  { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 255, AV_OPT_FLAG_ENCODING_PARAM},
88  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
89  { "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, .unit = "movflags" },
90  { "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, .unit = "movflags" },
91  { "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, .unit = "movflags" },
92  { "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, .unit = "movflags" },
93  { "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, .unit = "movflags" },
94  { "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, .unit = "movflags" },
95  { "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, .unit = "movflags" },
96  { "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, .unit = "movflags" },
97  { "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, .unit = "movflags" },
98  { "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, .unit = "movflags" },
99  { "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, .unit = "movflags" },
100  { "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, .unit = "movflags" },
101  { "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, .unit = "movflags" },
102  { "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, .unit = 0 },
103  { "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, .unit = "movflags" },
104  { "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, .unit = "movflags" },
105  { "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, .unit = "movflags" },
106  { "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, .unit = "movflags" },
107  { "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, .unit = "movflags" },
108  { "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, .unit = "movflags" },
109  { "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, .unit = "movflags" },
110  { "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, .unit = "movflags" },
111  { "write_colr", "Write colr atom even if the color info is unspecified (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, .unit = "movflags" },
112  { "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, .unit = "movflags" },
113  { "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},
114  { "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},
115  { "movie_timescale", "set movie timescale", offsetof(MOVMuxContext, movie_timescale), AV_OPT_TYPE_INT, {.i64 = MOV_TIMESCALE}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
116  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
117  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
118  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
119  { "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},
120  { "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},
121  { "write_btrt", "force or disable writing btrt", offsetof(MOVMuxContext, write_btrt), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
122  { "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, .unit = "prft"},
123  { "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, .unit = "prft"},
124  { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, .unit = "prft"},
125  { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
126  { NULL },
127 };
128 
130  .class_name = "mov/mp4/tgp/psp/tg2/ipod/ismv/f4v muxer",
131  .item_name = av_default_item_name,
132  .option = options,
133  .version = LIBAVUTIL_VERSION_INT,
134 };
135 
136 static int get_moov_size(AVFormatContext *s);
138 
139 static int utf8len(const uint8_t *b)
140 {
141  int len = 0;
142  int val;
143  while (*b) {
144  GET_UTF8(val, *b++, return -1;)
145  len++;
146  }
147  return len;
148 }
149 
150 //FIXME support 64 bit variant with wide placeholders
151 static int64_t update_size(AVIOContext *pb, int64_t pos)
152 {
153  int64_t curpos = avio_tell(pb);
154  avio_seek(pb, pos, SEEK_SET);
155  avio_wb32(pb, curpos - pos); /* rewrite size */
156  avio_seek(pb, curpos, SEEK_SET);
157 
158  return curpos - pos;
159 }
160 
161 static int co64_required(const MOVTrack *track)
162 {
163  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
164  return 1;
165  return 0;
166 }
167 
168 static int is_cover_image(const AVStream *st)
169 {
170  /* Eg. AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS
171  * is encoded as sparse video track */
172  return st && st->disposition == AV_DISPOSITION_ATTACHED_PIC;
173 }
174 
175 static int rtp_hinting_needed(const AVStream *st)
176 {
177  /* Add hint tracks for each real audio and video stream */
178  if (is_cover_image(st))
179  return 0;
180  return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
182 }
183 
184 /* Chunk offset atom */
185 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
186 {
187  int i;
188  int mode64 = co64_required(track); // use 32 bit size variant if possible
189  int64_t pos = avio_tell(pb);
190  avio_wb32(pb, 0); /* size */
191  if (mode64)
192  ffio_wfourcc(pb, "co64");
193  else
194  ffio_wfourcc(pb, "stco");
195  avio_wb32(pb, 0); /* version & flags */
196  avio_wb32(pb, track->chunkCount); /* entry count */
197  for (i = 0; i < track->entry; i++) {
198  if (!track->cluster[i].chunkNum)
199  continue;
200  if (mode64 == 1)
201  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
202  else
203  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
204  }
205  return update_size(pb, pos);
206 }
207 
208 /* Sample size atom */
209 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
210 {
211  int equalChunks = 1;
212  int i, j, entries = 0, tst = -1, oldtst = -1;
213 
214  int64_t pos = avio_tell(pb);
215  avio_wb32(pb, 0); /* size */
216  ffio_wfourcc(pb, "stsz");
217  avio_wb32(pb, 0); /* version & flags */
218 
219  for (i = 0; i < track->entry; i++) {
220  tst = track->cluster[i].size / track->cluster[i].entries;
221  if (oldtst != -1 && tst != oldtst)
222  equalChunks = 0;
223  oldtst = tst;
224  entries += track->cluster[i].entries;
225  }
226  if (equalChunks && track->entry) {
227  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
228  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
229  avio_wb32(pb, sSize); // sample size
230  avio_wb32(pb, entries); // sample count
231  } else {
232  avio_wb32(pb, 0); // sample size
233  avio_wb32(pb, entries); // sample count
234  for (i = 0; i < track->entry; i++) {
235  for (j = 0; j < track->cluster[i].entries; j++) {
236  avio_wb32(pb, track->cluster[i].size /
237  track->cluster[i].entries);
238  }
239  }
240  }
241  return update_size(pb, pos);
242 }
243 
244 /* Sample to chunk atom */
245 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
246 {
247  int index = 0, oldval = -1, i;
248  int64_t entryPos, curpos;
249 
250  int64_t pos = avio_tell(pb);
251  avio_wb32(pb, 0); /* size */
252  ffio_wfourcc(pb, "stsc");
253  avio_wb32(pb, 0); // version & flags
254  entryPos = avio_tell(pb);
255  avio_wb32(pb, track->chunkCount); // entry count
256  for (i = 0; i < track->entry; i++) {
257  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
258  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
259  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
260  avio_wb32(pb, 0x1); // sample description index
261  oldval = track->cluster[i].samples_in_chunk;
262  index++;
263  }
264  }
265  curpos = avio_tell(pb);
266  avio_seek(pb, entryPos, SEEK_SET);
267  avio_wb32(pb, index); // rewrite size
268  avio_seek(pb, curpos, SEEK_SET);
269 
270  return update_size(pb, pos);
271 }
272 
273 /* Sync sample atom */
274 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
275 {
276  int64_t curpos, entryPos;
277  int i, index = 0;
278  int64_t pos = avio_tell(pb);
279  avio_wb32(pb, 0); // size
280  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
281  avio_wb32(pb, 0); // version & flags
282  entryPos = avio_tell(pb);
283  avio_wb32(pb, track->entry); // entry count
284  for (i = 0; i < track->entry; i++) {
285  if (track->cluster[i].flags & flag) {
286  avio_wb32(pb, i + 1);
287  index++;
288  }
289  }
290  curpos = avio_tell(pb);
291  avio_seek(pb, entryPos, SEEK_SET);
292  avio_wb32(pb, index); // rewrite size
293  avio_seek(pb, curpos, SEEK_SET);
294  return update_size(pb, pos);
295 }
296 
297 /* Sample dependency atom */
298 static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track)
299 {
300  int i;
301  uint8_t leading, dependent, reference, redundancy;
302  int64_t pos = avio_tell(pb);
303  avio_wb32(pb, 0); // size
304  ffio_wfourcc(pb, "sdtp");
305  avio_wb32(pb, 0); // version & flags
306  for (i = 0; i < track->entry; i++) {
307  dependent = MOV_SAMPLE_DEPENDENCY_YES;
308  leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN;
309  if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) {
310  reference = MOV_SAMPLE_DEPENDENCY_NO;
311  }
312  if (track->cluster[i].flags & MOV_SYNC_SAMPLE) {
313  dependent = MOV_SAMPLE_DEPENDENCY_NO;
314  }
315  avio_w8(pb, (leading << 6) | (dependent << 4) |
316  (reference << 2) | redundancy);
317  }
318  return update_size(pb, pos);
319 }
320 
321 #if CONFIG_IAMFENC
322 static int mov_write_iacb_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
323 {
324  AVIOContext *dyn_bc;
325  int64_t pos = avio_tell(pb);
326  uint8_t *dyn_buf = NULL;
327  int dyn_size;
328  int ret = avio_open_dyn_buf(&dyn_bc);
329  if (ret < 0)
330  return ret;
331 
332  avio_wb32(pb, 0);
333  ffio_wfourcc(pb, "iacb");
334  avio_w8(pb, 1); // configurationVersion
335 
336  ret = ff_iamf_write_descriptors(track->iamf, dyn_bc, s);
337  if (ret < 0)
338  return ret;
339 
340  dyn_size = avio_close_dyn_buf(dyn_bc, &dyn_buf);
341  ffio_write_leb(pb, dyn_size);
342  avio_write(pb, dyn_buf, dyn_size);
343  av_free(dyn_buf);
344 
345  return update_size(pb, pos);
346 }
347 #endif
348 
349 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
350 {
351  avio_wb32(pb, 0x11); /* size */
352  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
353  else ffio_wfourcc(pb, "damr");
354  ffio_wfourcc(pb, "FFMP");
355  avio_w8(pb, 0); /* decoder version */
356 
357  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
358  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
359  avio_w8(pb, 0x01); /* Frames per sample */
360  return 0x11;
361 }
362 
363 struct eac3_info {
365  uint8_t ec3_done;
366  uint8_t num_blocks;
367 
368  /* Layout of the EC3SpecificBox */
369  /* maximum bitrate */
370  uint16_t data_rate;
372  /* number of independent substreams */
373  uint8_t num_ind_sub;
374  struct {
375  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
376  uint8_t fscod;
377  /* bit stream identification 5 bits */
378  uint8_t bsid;
379  /* one bit reserved */
380  /* audio service mixing (not supported yet) 1 bit */
381  /* bit stream mode 3 bits */
382  uint8_t bsmod;
383  /* audio coding mode 3 bits */
384  uint8_t acmod;
385  /* sub woofer on 1 bit */
386  uint8_t lfeon;
387  /* 3 bits reserved */
388  /* number of dependent substreams associated with this substream 4 bits */
389  uint8_t num_dep_sub;
390  /* channel locations of the dependent substream(s), if any, 9 bits */
391  uint16_t chan_loc;
392  /* if there is no dependent substream, then one bit reserved instead */
393  } substream[1]; /* TODO: support 8 independent substreams */
394 };
395 
397 {
398  struct eac3_info *info = track->eac3_priv;
399  PutBitContext pbc;
400  uint8_t buf[3];
401 
402  if (!info || !info->ec3_done) {
404  "Cannot write moov atom before AC3 packets."
405  " Set the delay_moov flag to fix this.\n");
406  return AVERROR(EINVAL);
407  }
408 
409  if (info->substream[0].bsid > 8) {
411  "RealAudio AC-3/DolbyNet with bsid %d is not defined by the "
412  "ISOBMFF specification in ETSI TS 102 366!\n",
413  info->substream[0].bsid);
414  return AVERROR(EINVAL);
415  }
416 
417  if (info->ac3_bit_rate_code < 0) {
419  "No valid AC3 bit rate code for data rate of %d!\n",
420  info->data_rate);
421  return AVERROR(EINVAL);
422  }
423 
424  avio_wb32(pb, 11);
425  ffio_wfourcc(pb, "dac3");
426 
427  init_put_bits(&pbc, buf, sizeof(buf));
428  put_bits(&pbc, 2, info->substream[0].fscod);
429  put_bits(&pbc, 5, info->substream[0].bsid);
430  put_bits(&pbc, 3, info->substream[0].bsmod);
431  put_bits(&pbc, 3, info->substream[0].acmod);
432  put_bits(&pbc, 1, info->substream[0].lfeon);
433  put_bits(&pbc, 5, info->ac3_bit_rate_code); // bit_rate_code
434  put_bits(&pbc, 5, 0); // reserved
435 
436  flush_put_bits(&pbc);
437  avio_write(pb, buf, sizeof(buf));
438 
439  return 11;
440 }
441 
442 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
443 {
444  AC3HeaderInfo *hdr = NULL;
445  struct eac3_info *info;
446  int num_blocks, ret;
447 
448  if (!track->eac3_priv) {
449  if (!(track->eac3_priv = av_mallocz(sizeof(*info))))
450  return AVERROR(ENOMEM);
451 
452  ((struct eac3_info *)track->eac3_priv)->ac3_bit_rate_code = -1;
453  }
454  info = track->eac3_priv;
455 
456  if (!info->pkt && !(info->pkt = av_packet_alloc()))
457  return AVERROR(ENOMEM);
458 
459  if ((ret = avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size)) < 0) {
460  if (ret == AVERROR(ENOMEM))
461  goto end;
462 
463  /* drop the packets until we see a good one */
464  if (!track->entry) {
465  av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
466  ret = 0;
467  } else
469  goto end;
470  }
471 
472  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
473  info->ac3_bit_rate_code = FFMAX(info->ac3_bit_rate_code,
474  hdr->ac3_bit_rate_code);
475  num_blocks = hdr->num_blocks;
476 
477  if (!info->ec3_done) {
478  /* AC-3 substream must be the first one */
479  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) {
480  ret = AVERROR(EINVAL);
481  goto end;
482  }
483 
484  /* this should always be the case, given that our AC-3 parser
485  * concatenates dependent frames to their independent parent */
488  /* substream ids must be incremental */
489  if (hdr->substreamid > info->num_ind_sub + 1) {
490  ret = AVERROR(EINVAL);
491  goto end;
492  }
493 
494  if (hdr->substreamid == info->num_ind_sub + 1) {
495  //info->num_ind_sub++;
496  avpriv_request_sample(mov->fc, "Multiple independent substreams");
498  goto end;
499  } else if (hdr->substreamid < info->num_ind_sub ||
500  hdr->substreamid == 0 && info->substream[0].bsid) {
501  info->ec3_done = 1;
502  goto concatenate;
503  }
504  } else {
505  if (hdr->substreamid != 0) {
506  avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
508  goto end;
509  }
510  }
511 
512  /* fill the info needed for the "dec3" atom */
513  info->substream[hdr->substreamid].fscod = hdr->sr_code;
514  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
515  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
516  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
517  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
518 
519  if (track->par->codec_id == AV_CODEC_ID_AC3) {
520  // with AC-3 we only require the information of a single packet,
521  // so we can finish as soon as the basic values of the bit stream
522  // have been set to the track's informational structure.
523  info->ec3_done = 1;
524  goto concatenate;
525  }
526 
527  /* Parse dependent substream(s), if any */
528  if (pkt->size != hdr->frame_size) {
529  int cumul_size = hdr->frame_size;
530  int parent = hdr->substreamid;
531 
532  while (cumul_size != pkt->size) {
533  GetBitContext gbc;
534  int i;
535  ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size);
536  if (ret < 0)
537  goto end;
539  ret = AVERROR(EINVAL);
540  goto end;
541  }
542  info->substream[parent].num_dep_sub++;
543  ret /= 8;
544 
545  /* header is parsed up to lfeon, but custom channel map may be needed */
546  init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret);
547  /* skip bsid */
548  skip_bits(&gbc, 5);
549  /* skip volume control params */
550  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
551  skip_bits(&gbc, 5); // skip dialog normalization
552  if (get_bits1(&gbc)) {
553  skip_bits(&gbc, 8); // skip compression gain word
554  }
555  }
556  /* get the dependent stream channel map, if exists */
557  if (get_bits1(&gbc))
558  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
559  else
560  info->substream[parent].chan_loc |= hdr->channel_mode;
561  cumul_size += hdr->frame_size;
562  }
563  }
564  }
565 
566 concatenate:
567  if (!info->num_blocks && num_blocks == 6) {
568  ret = pkt->size;
569  goto end;
570  }
571  else if (info->num_blocks + num_blocks > 6) {
573  goto end;
574  }
575 
576  if (!info->num_blocks) {
577  ret = av_packet_ref(info->pkt, pkt);
578  if (!ret)
579  info->num_blocks = num_blocks;
580  goto end;
581  } else {
582  if ((ret = av_grow_packet(info->pkt, pkt->size)) < 0)
583  goto end;
584  memcpy(info->pkt->data + info->pkt->size - pkt->size, pkt->data, pkt->size);
585  info->num_blocks += num_blocks;
586  info->pkt->duration += pkt->duration;
587  if (info->num_blocks != 6)
588  goto end;
590  av_packet_move_ref(pkt, info->pkt);
591  info->num_blocks = 0;
592  }
593  ret = pkt->size;
594 
595 end:
596  av_free(hdr);
597 
598  return ret;
599 }
600 
602 {
603  PutBitContext pbc;
604  uint8_t *buf;
605  struct eac3_info *info;
606  int size, i;
607 
608  if (!track->eac3_priv) {
610  "Cannot write moov atom before EAC3 packets parsed.\n");
611  return AVERROR(EINVAL);
612  }
613 
614  info = track->eac3_priv;
615  size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
616  buf = av_malloc(size);
617  if (!buf) {
618  return AVERROR(ENOMEM);
619  }
620 
621  init_put_bits(&pbc, buf, size);
622  put_bits(&pbc, 13, info->data_rate);
623  put_bits(&pbc, 3, info->num_ind_sub);
624  for (i = 0; i <= info->num_ind_sub; i++) {
625  put_bits(&pbc, 2, info->substream[i].fscod);
626  put_bits(&pbc, 5, info->substream[i].bsid);
627  put_bits(&pbc, 1, 0); /* reserved */
628  put_bits(&pbc, 1, 0); /* asvc */
629  put_bits(&pbc, 3, info->substream[i].bsmod);
630  put_bits(&pbc, 3, info->substream[i].acmod);
631  put_bits(&pbc, 1, info->substream[i].lfeon);
632  put_bits(&pbc, 5, 0); /* reserved */
633  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
634  if (!info->substream[i].num_dep_sub) {
635  put_bits(&pbc, 1, 0); /* reserved */
636  } else {
637  put_bits(&pbc, 9, info->substream[i].chan_loc);
638  }
639  }
640  flush_put_bits(&pbc);
641  size = put_bytes_output(&pbc);
642 
643  avio_wb32(pb, size + 8);
644  ffio_wfourcc(pb, "dec3");
645  avio_write(pb, buf, size);
646 
647  av_free(buf);
648 
649  return size;
650 }
651 
652 /**
653  * This function writes extradata "as is".
654  * Extradata must be formatted like a valid atom (with size and tag).
655  */
657 {
658  avio_write(pb, track->par->extradata, track->par->extradata_size);
659  return track->par->extradata_size;
660 }
661 
663 {
664  avio_wb32(pb, 10);
665  ffio_wfourcc(pb, "enda");
666  avio_wb16(pb, 1); /* little endian */
667  return 10;
668 }
669 
671 {
672  avio_wb32(pb, 10);
673  ffio_wfourcc(pb, "enda");
674  avio_wb16(pb, 0); /* big endian */
675  return 10;
676 }
677 
678 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
679 {
680  int i = 3;
681  avio_w8(pb, tag);
682  for (; i > 0; i--)
683  avio_w8(pb, (size >> (7 * i)) | 0x80);
684  avio_w8(pb, size & 0x7F);
685 }
686 
687 static unsigned compute_avg_bitrate(MOVTrack *track)
688 {
689  uint64_t size = 0;
690  int i;
691  if (!track->track_duration)
692  return 0;
693  for (i = 0; i < track->entry; i++)
694  size += track->cluster[i].size;
695  return size * 8 * track->timescale / track->track_duration;
696 }
697 
699  uint32_t buffer_size; ///< Size of the decoding buffer for the elementary stream in bytes.
700  uint32_t max_bit_rate; ///< Maximum rate in bits/second over any window of one second.
701  uint32_t avg_bit_rate; ///< Average rate in bits/second over the entire presentation.
702 };
703 
705 {
706  const AVPacketSideData *sd = track->st ?
708  track->st->codecpar->nb_coded_side_data,
710  AVCPBProperties *props = sd ? (AVCPBProperties *)sd->data : NULL;
711  struct mpeg4_bit_rate_values bit_rates = { 0 };
712 
713  bit_rates.avg_bit_rate = compute_avg_bitrate(track);
714  if (!bit_rates.avg_bit_rate) {
715  // if the average bit rate cannot be calculated at this point, such as
716  // in the case of fragmented MP4, utilize the following values as
717  // fall-back in priority order:
718  //
719  // 1. average bit rate property
720  // 2. bit rate (usually average over the whole clip)
721  // 3. maximum bit rate property
722 
723  if (props && props->avg_bitrate) {
724  bit_rates.avg_bit_rate = props->avg_bitrate;
725  } else if (track->par->bit_rate) {
726  bit_rates.avg_bit_rate = track->par->bit_rate;
727  } else if (props && props->max_bitrate) {
728  bit_rates.avg_bit_rate = props->max_bitrate;
729  }
730  }
731 
732  // (FIXME should be max rate in any 1 sec window)
733  bit_rates.max_bit_rate = FFMAX(track->par->bit_rate,
734  bit_rates.avg_bit_rate);
735 
736  // utilize values from properties if we have them available
737  if (props) {
738  bit_rates.max_bit_rate = FFMAX(bit_rates.max_bit_rate,
739  props->max_bitrate);
740  bit_rates.buffer_size = props->buffer_size / 8;
741  }
742 
743  return bit_rates;
744 }
745 
746 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
747 {
748  struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track);
749  int64_t pos = avio_tell(pb);
750  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
751 
752  avio_wb32(pb, 0); // size
753  ffio_wfourcc(pb, "esds");
754  avio_wb32(pb, 0); // Version
755 
756  // ES descriptor
757  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
758  avio_wb16(pb, track->track_id);
759  avio_w8(pb, 0x00); // flags (= no flags)
760 
761  // DecoderConfig descriptor
762  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
763 
764  // Object type indication
765  if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
766  track->par->codec_id == AV_CODEC_ID_MP3) &&
767  track->par->sample_rate > 24000)
768  avio_w8(pb, 0x6B); // 11172-3
769  else
771 
772  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
773  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
774  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
775  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
776  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
777  avio_w8(pb, 0x15); // flags (= Audiostream)
778  else
779  avio_w8(pb, 0x11); // flags (= Visualstream)
780 
781  avio_wb24(pb, bit_rates.buffer_size); // Buffersize DB
782  avio_wb32(pb, bit_rates.max_bit_rate); // maxbitrate
783  avio_wb32(pb, bit_rates.avg_bit_rate);
784 
785  if (track->vos_len) {
786  // DecoderSpecific info descriptor
787  put_descr(pb, 0x05, track->vos_len);
788  avio_write(pb, track->vos_data, track->vos_len);
789  }
790 
791  // SL descriptor
792  put_descr(pb, 0x06, 1);
793  avio_w8(pb, 0x02);
794  return update_size(pb, pos);
795 }
796 
798 {
799  return codec_id == AV_CODEC_ID_PCM_S24LE ||
803 }
804 
806 {
807  return codec_id == AV_CODEC_ID_PCM_S24BE ||
811 }
812 
814 {
815  int ret;
816  int64_t pos = avio_tell(pb);
817  avio_wb32(pb, 0);
818  avio_wl32(pb, track->tag); // store it byteswapped
819  track->par->codec_tag = av_bswap16(track->tag >> 16);
820  if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
821  return ret;
822  return update_size(pb, pos);
823 }
824 
826 {
827  int ret;
828  int64_t pos = avio_tell(pb);
829  avio_wb32(pb, 0);
830  ffio_wfourcc(pb, "wfex");
832  return ret;
833  return update_size(pb, pos);
834 }
835 
836 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
837 {
838  int64_t pos = avio_tell(pb);
839  avio_wb32(pb, 0);
840  ffio_wfourcc(pb, "dfLa");
841  avio_w8(pb, 0); /* version */
842  avio_wb24(pb, 0); /* flags */
843 
844  /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
845  if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
846  return AVERROR_INVALIDDATA;
847 
848  /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
849  avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
850  avio_wb24(pb, track->par->extradata_size); /* Length */
851  avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
852 
853  return update_size(pb, pos);
854 }
855 
857 {
858  int64_t pos = avio_tell(pb);
859  int channels, channel_map;
860  avio_wb32(pb, 0);
861  ffio_wfourcc(pb, "dOps");
862  avio_w8(pb, 0); /* Version */
863  if (track->par->extradata_size < 19) {
864  av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
865  return AVERROR_INVALIDDATA;
866  }
867  /* extradata contains an Ogg OpusHead, other than byte-ordering and
868  OpusHead's preceeding magic/version, OpusSpecificBox is currently
869  identical. */
870  channels = AV_RB8(track->par->extradata + 9);
871  channel_map = AV_RB8(track->par->extradata + 18);
872 
873  avio_w8(pb, channels); /* OuputChannelCount */
874  avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
875  avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
876  avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
877  avio_w8(pb, channel_map); /* ChannelMappingFamily */
878  /* Write the rest of the header out without byte-swapping. */
879  if (channel_map) {
880  if (track->par->extradata_size < 21 + channels) {
881  av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
882  return AVERROR_INVALIDDATA;
883  }
884  avio_write(pb, track->par->extradata + 19, 2 + channels); /* ChannelMappingTable */
885  }
886 
887  return update_size(pb, pos);
888 }
889 
891 {
892  int64_t pos = avio_tell(pb);
893  int length;
894  avio_wb32(pb, 0);
895  ffio_wfourcc(pb, "dmlp");
896 
897  if (track->vos_len < 20) {
899  "Cannot write moov atom before TrueHD packets."
900  " Set the delay_moov flag to fix this.\n");
901  return AVERROR(EINVAL);
902  }
903 
904  length = (AV_RB16(track->vos_data) & 0xFFF) * 2;
905  if (length < 20 || length > track->vos_len)
906  return AVERROR_INVALIDDATA;
907 
908  // Only TrueHD is supported
909  if (AV_RB32(track->vos_data + 4) != 0xF8726FBA)
910  return AVERROR_INVALIDDATA;
911 
912  avio_wb32(pb, AV_RB32(track->vos_data + 8)); /* format_info */
913  avio_wb16(pb, AV_RB16(track->vos_data + 18) << 1); /* peak_data_rate */
914  avio_wb32(pb, 0); /* reserved */
915 
916  return update_size(pb, pos);
917 }
918 
920 {
921  uint32_t layout_tag, bitmap, *channel_desc;
922  int64_t pos = avio_tell(pb);
923  int num_desc, ret;
924 
925  if (track->multichannel_as_mono)
926  return 0;
927 
928  ret = ff_mov_get_channel_layout_tag(track->par, &layout_tag,
929  &bitmap, &channel_desc);
930 
931  if (ret < 0) {
932  if (ret == AVERROR(ENOSYS)) {
933  av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
934  "lack of channel information\n");
935  ret = 0;
936  }
937 
938  return ret;
939  }
940 
941  if (layout_tag == MOV_CH_LAYOUT_MONO && track->mono_as_fc > 0) {
942  av_assert0(!channel_desc);
943  channel_desc = av_malloc(sizeof(*channel_desc));
944  if (!channel_desc)
945  return AVERROR(ENOMEM);
946 
947  layout_tag = 0;
948  bitmap = 0;
949  *channel_desc = 3; // channel label "Center"
950  }
951 
952  num_desc = layout_tag ? 0 : track->par->ch_layout.nb_channels;
953 
954  avio_wb32(pb, 0); // Size
955  ffio_wfourcc(pb, "chan"); // Type
956  avio_w8(pb, 0); // Version
957  avio_wb24(pb, 0); // Flags
958  avio_wb32(pb, layout_tag); // mChannelLayoutTag
959  avio_wb32(pb, bitmap); // mChannelBitmap
960  avio_wb32(pb, num_desc); // mNumberChannelDescriptions
961 
962  for (int i = 0; i < num_desc; i++) {
963  avio_wb32(pb, channel_desc[i]); // mChannelLabel
964  avio_wb32(pb, 0); // mChannelFlags
965  avio_wl32(pb, 0); // mCoordinates[0]
966  avio_wl32(pb, 0); // mCoordinates[1]
967  avio_wl32(pb, 0); // mCoordinates[2]
968  }
969 
970  av_free(channel_desc);
971 
972  return update_size(pb, pos);
973 }
974 
976 {
977  int64_t pos = avio_tell(pb);
978 
979  avio_wb32(pb, 0); /* size */
980  ffio_wfourcc(pb, "wave");
981 
982  if (track->par->codec_id != AV_CODEC_ID_QDM2) {
983  avio_wb32(pb, 12); /* size */
984  ffio_wfourcc(pb, "frma");
985  avio_wl32(pb, track->tag);
986  }
987 
988  if (track->par->codec_id == AV_CODEC_ID_AAC) {
989  /* useless atom needed by mplayer, ipod, not needed by quicktime */
990  avio_wb32(pb, 12); /* size */
991  ffio_wfourcc(pb, "mp4a");
992  avio_wb32(pb, 0);
993  mov_write_esds_tag(pb, track);
994  } else if (mov_pcm_le_gt16(track->par->codec_id)) {
995  mov_write_enda_tag(pb);
996  } else if (mov_pcm_be_gt16(track->par->codec_id)) {
998  } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
999  mov_write_amr_tag(pb, track);
1000  } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
1001  mov_write_ac3_tag(s, pb, track);
1002  } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
1003  mov_write_eac3_tag(s, pb, track);
1004  } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
1005  track->par->codec_id == AV_CODEC_ID_QDM2) {
1006  mov_write_extradata_tag(pb, track);
1007  } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1008  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
1009  mov_write_ms_tag(s, pb, track);
1010  }
1011 
1012  avio_wb32(pb, 8); /* size */
1013  avio_wb32(pb, 0); /* null tag */
1014 
1015  return update_size(pb, pos);
1016 }
1017 
1018 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
1019 {
1020  uint8_t *unescaped;
1021  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
1022  int unescaped_size, seq_found = 0;
1023  int level = 0, interlace = 0;
1024  int packet_seq = track->vc1_info.packet_seq;
1025  int packet_entry = track->vc1_info.packet_entry;
1026  int slices = track->vc1_info.slices;
1027  PutBitContext pbc;
1028 
1029  if (track->start_dts == AV_NOPTS_VALUE) {
1030  /* No packets written yet, vc1_info isn't authoritative yet. */
1031  /* Assume inline sequence and entry headers. */
1032  packet_seq = packet_entry = 1;
1034  "moov atom written before any packets, unable to write correct "
1035  "dvc1 atom. Set the delay_moov flag to fix this.\n");
1036  }
1037 
1038  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
1039  if (!unescaped)
1040  return AVERROR(ENOMEM);
1041  start = find_next_marker(track->vos_data, end);
1042  for (next = start; next < end; start = next) {
1043  GetBitContext gb;
1044  int size;
1045  next = find_next_marker(start + 4, end);
1046  size = next - start - 4;
1047  if (size <= 0)
1048  continue;
1049  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
1050  init_get_bits(&gb, unescaped, 8 * unescaped_size);
1051  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
1052  int profile = get_bits(&gb, 2);
1053  if (profile != PROFILE_ADVANCED) {
1054  av_free(unescaped);
1055  return AVERROR(ENOSYS);
1056  }
1057  seq_found = 1;
1058  level = get_bits(&gb, 3);
1059  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
1060  * width, height */
1061  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
1062  skip_bits(&gb, 1); /* broadcast */
1063  interlace = get_bits1(&gb);
1064  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
1065  }
1066  }
1067  if (!seq_found) {
1068  av_free(unescaped);
1069  return AVERROR(ENOSYS);
1070  }
1071 
1072  init_put_bits(&pbc, buf, 7);
1073  /* VC1DecSpecStruc */
1074  put_bits(&pbc, 4, 12); /* profile - advanced */
1075  put_bits(&pbc, 3, level);
1076  put_bits(&pbc, 1, 0); /* reserved */
1077  /* VC1AdvDecSpecStruc */
1078  put_bits(&pbc, 3, level);
1079  put_bits(&pbc, 1, 0); /* cbr */
1080  put_bits(&pbc, 6, 0); /* reserved */
1081  put_bits(&pbc, 1, !interlace); /* no interlace */
1082  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
1083  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
1084  put_bits(&pbc, 1, !slices); /* no slice code */
1085  put_bits(&pbc, 1, 0); /* no bframe */
1086  put_bits(&pbc, 1, 0); /* reserved */
1087 
1088  /* framerate */
1089  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
1090  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
1091  else
1092  put_bits32(&pbc, 0xffffffff);
1093 
1094  flush_put_bits(&pbc);
1095 
1096  av_free(unescaped);
1097 
1098  return 0;
1099 }
1100 
1101 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
1102 {
1103  uint8_t buf[7] = { 0 };
1104  int ret;
1105 
1106  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
1107  return ret;
1108 
1109  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
1110  ffio_wfourcc(pb, "dvc1");
1111  avio_write(pb, buf, sizeof(buf));
1112  avio_write(pb, track->vos_data, track->vos_len);
1113 
1114  return 0;
1115 }
1116 
1117 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
1118 {
1119  avio_wb32(pb, track->vos_len + 8);
1120  ffio_wfourcc(pb, "glbl");
1121  avio_write(pb, track->vos_data, track->vos_len);
1122  return 8 + track->vos_len;
1123 }
1124 
1125 /**
1126  * Compute flags for 'lpcm' tag.
1127  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1128  */
1130 {
1131  switch (codec_id) {
1132  case AV_CODEC_ID_PCM_F32BE:
1133  case AV_CODEC_ID_PCM_F64BE:
1134  return 11;
1135  case AV_CODEC_ID_PCM_F32LE:
1136  case AV_CODEC_ID_PCM_F64LE:
1137  return 9;
1138  case AV_CODEC_ID_PCM_U8:
1139  return 10;
1140  case AV_CODEC_ID_PCM_S16BE:
1141  case AV_CODEC_ID_PCM_S24BE:
1142  case AV_CODEC_ID_PCM_S32BE:
1143  return 14;
1144  case AV_CODEC_ID_PCM_S8:
1145  case AV_CODEC_ID_PCM_S16LE:
1146  case AV_CODEC_ID_PCM_S24LE:
1147  case AV_CODEC_ID_PCM_S32LE:
1148  return 12;
1149  default:
1150  return 0;
1151  }
1152 }
1153 
1154 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
1155 {
1156  int64_t next_dts;
1157 
1158  if (cluster_idx >= track->entry)
1159  return 0;
1160 
1161  if (cluster_idx + 1 == track->entry)
1162  next_dts = track->track_duration + track->start_dts;
1163  else
1164  next_dts = track->cluster[cluster_idx + 1].dts;
1165 
1166  next_dts -= track->cluster[cluster_idx].dts;
1167 
1168  av_assert0(next_dts >= 0);
1169  av_assert0(next_dts <= INT_MAX);
1170 
1171  return next_dts;
1172 }
1173 
1175 {
1176  int i, first_duration;
1177 
1178  /* use 1 for raw PCM */
1179  if (!track->audio_vbr)
1180  return 1;
1181 
1182  /* check to see if duration is constant for all clusters */
1183  if (!track->entry)
1184  return 0;
1185  first_duration = get_cluster_duration(track, 0);
1186  for (i = 1; i < track->entry; i++) {
1187  if (get_cluster_duration(track, i) != first_duration)
1188  return 0;
1189  }
1190  return first_duration;
1191 }
1192 
1193 static int mov_write_btrt_tag(AVIOContext *pb, MOVTrack *track)
1194 {
1195  int64_t pos = avio_tell(pb);
1196  struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track);
1197  if (!bit_rates.max_bit_rate && !bit_rates.avg_bit_rate &&
1198  !bit_rates.buffer_size)
1199  // no useful data to be written, skip
1200  return 0;
1201 
1202  avio_wb32(pb, 0); /* size */
1203  ffio_wfourcc(pb, "btrt");
1204 
1205  avio_wb32(pb, bit_rates.buffer_size);
1206  avio_wb32(pb, bit_rates.max_bit_rate);
1207  avio_wb32(pb, bit_rates.avg_bit_rate);
1208 
1209  return update_size(pb, pos);
1210 }
1211 
1213 {
1214  int64_t pos = avio_tell(pb);
1215  int config = 0;
1216  int ret;
1217  uint8_t *speaker_pos = NULL;
1218  const AVChannelLayout *layout = &track->par->ch_layout;
1219 
1221  if (ret || !config) {
1222  config = 0;
1223  speaker_pos = av_malloc(layout->nb_channels);
1224  if (!speaker_pos)
1225  return AVERROR(ENOMEM);
1227  speaker_pos, layout->nb_channels);
1228  if (ret) {
1229  char buf[128] = {0};
1230 
1231  av_freep(&speaker_pos);
1232  av_channel_layout_describe(layout, buf, sizeof(buf));
1233  av_log(s, AV_LOG_ERROR, "unsupported channel layout %s\n", buf);
1234  return ret;
1235  }
1236  }
1237 
1238  avio_wb32(pb, 0); /* size */
1239  ffio_wfourcc(pb, "chnl");
1240  avio_wb32(pb, 0); /* version & flags */
1241 
1242  avio_w8(pb, 1); /* stream_structure */
1243  avio_w8(pb, config);
1244  if (config) {
1245  avio_wb64(pb, 0);
1246  } else {
1247  avio_write(pb, speaker_pos, layout->nb_channels);
1248  av_freep(&speaker_pos);
1249  }
1250 
1251  return update_size(pb, pos);
1252 }
1253 
1255 {
1256  int64_t pos = avio_tell(pb);
1257  int format_flags;
1258  int sample_size;
1259 
1260  avio_wb32(pb, 0); /* size */
1261  ffio_wfourcc(pb, "pcmC");
1262  avio_wb32(pb, 0); /* version & flags */
1263 
1264  /* 0x01: indicates little-endian format */
1265  format_flags = (track->par->codec_id == AV_CODEC_ID_PCM_F32LE ||
1266  track->par->codec_id == AV_CODEC_ID_PCM_F64LE ||
1267  track->par->codec_id == AV_CODEC_ID_PCM_S16LE ||
1268  track->par->codec_id == AV_CODEC_ID_PCM_S24LE ||
1269  track->par->codec_id == AV_CODEC_ID_PCM_S32LE);
1270  avio_w8(pb, format_flags);
1271  sample_size = track->par->bits_per_raw_sample;
1272  if (!sample_size)
1273  sample_size = av_get_exact_bits_per_sample(track->par->codec_id);
1274  av_assert0(sample_size);
1275  avio_w8(pb, sample_size);
1276 
1277  return update_size(pb, pos);
1278 }
1279 
1281 {
1282  int64_t pos = avio_tell(pb);
1283  int version = 0;
1284  uint32_t tag = track->tag;
1285  int ret = 0;
1286 
1287  if (track->mode == MODE_MOV) {
1288  if (track->timescale > UINT16_MAX || !track->par->ch_layout.nb_channels) {
1289  if (mov_get_lpcm_flags(track->par->codec_id))
1290  tag = AV_RL32("lpcm");
1291  version = 2;
1292  } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1293  mov_pcm_be_gt16(track->par->codec_id) ||
1294  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1295  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1296  track->par->codec_id == AV_CODEC_ID_QDM2) {
1297  version = 1;
1298  }
1299  }
1300 
1301  avio_wb32(pb, 0); /* size */
1302  if (mov->encryption_scheme != MOV_ENC_NONE) {
1303  ffio_wfourcc(pb, "enca");
1304  } else {
1305  avio_wl32(pb, tag); // store it byteswapped
1306  }
1307  avio_wb32(pb, 0); /* Reserved */
1308  avio_wb16(pb, 0); /* Reserved */
1309  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1310 
1311  /* SoundDescription */
1312  avio_wb16(pb, version); /* Version */
1313  avio_wb16(pb, 0); /* Revision level */
1314  avio_wb32(pb, 0); /* Reserved */
1315 
1316  if (version == 2) {
1317  avio_wb16(pb, 3);
1318  avio_wb16(pb, 16);
1319  avio_wb16(pb, 0xfffe);
1320  avio_wb16(pb, 0);
1321  avio_wb32(pb, 0x00010000);
1322  avio_wb32(pb, 72);
1323  avio_wb64(pb, av_double2int(track->par->sample_rate));
1324  avio_wb32(pb, track->par->ch_layout.nb_channels);
1325  avio_wb32(pb, 0x7F000000);
1327  avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1328  avio_wb32(pb, track->sample_size);
1329  avio_wb32(pb, get_samples_per_packet(track));
1330  } else {
1331  if (track->mode == MODE_MOV) {
1332  avio_wb16(pb, track->par->ch_layout.nb_channels);
1333  if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1334  track->par->codec_id == AV_CODEC_ID_PCM_S8)
1335  avio_wb16(pb, 8); /* bits per sample */
1336  else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1337  avio_wb16(pb, track->par->bits_per_coded_sample);
1338  else
1339  avio_wb16(pb, 16);
1340  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1341  } else { /* reserved for mp4/3gp */
1342  avio_wb16(pb, track->par->ch_layout.nb_channels);
1343  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1344  track->par->codec_id == AV_CODEC_ID_ALAC) {
1345  avio_wb16(pb, track->par->bits_per_raw_sample);
1346  } else {
1347  avio_wb16(pb, 16);
1348  }
1349  avio_wb16(pb, 0);
1350  }
1351 
1352  avio_wb16(pb, 0); /* packet size (= 0) */
1353  if (track->par->codec_id == AV_CODEC_ID_OPUS)
1354  avio_wb16(pb, 48000);
1355  else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1356  avio_wb32(pb, track->par->sample_rate);
1357  else
1358  avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1359  track->par->sample_rate : 0);
1360 
1361  if (track->par->codec_id != AV_CODEC_ID_TRUEHD)
1362  avio_wb16(pb, 0); /* Reserved */
1363  }
1364 
1365  if (version == 1) { /* SoundDescription V1 extended info */
1366  if (mov_pcm_le_gt16(track->par->codec_id) ||
1367  mov_pcm_be_gt16(track->par->codec_id))
1368  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1369  else
1370  avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1371  avio_wb32(pb, track->sample_size / track->par->ch_layout.nb_channels); /* Bytes per packet */
1372  avio_wb32(pb, track->sample_size); /* Bytes per frame */
1373  avio_wb32(pb, 2); /* Bytes per sample */
1374  }
1375 
1376  if (track->mode == MODE_MOV &&
1377  (track->par->codec_id == AV_CODEC_ID_AAC ||
1378  track->par->codec_id == AV_CODEC_ID_AC3 ||
1379  track->par->codec_id == AV_CODEC_ID_EAC3 ||
1380  track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1381  track->par->codec_id == AV_CODEC_ID_ALAC ||
1382  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1383  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1384  track->par->codec_id == AV_CODEC_ID_QDM2 ||
1385  (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1386  (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1387  ret = mov_write_wave_tag(s, pb, track);
1388  else if (track->tag == MKTAG('m','p','4','a'))
1389  ret = mov_write_esds_tag(pb, track);
1390 #if CONFIG_IAMFENC
1391  else if (track->tag == MKTAG('i','a','m','f'))
1392  ret = mov_write_iacb_tag(mov->fc, pb, track);
1393 #endif
1394  else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1395  ret = mov_write_amr_tag(pb, track);
1396  else if (track->par->codec_id == AV_CODEC_ID_AC3)
1397  ret = mov_write_ac3_tag(s, pb, track);
1398  else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1399  ret = mov_write_eac3_tag(s, pb, track);
1400  else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1401  ret = mov_write_extradata_tag(pb, track);
1402  else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1403  ret = mov_write_wfex_tag(s, pb, track);
1404  else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1405  ret = mov_write_dfla_tag(pb, track);
1406  else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1407  ret = mov_write_dops_tag(s, pb, track);
1408  else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1409  ret = mov_write_dmlp_tag(s, pb, track);
1410  else if (tag == MOV_MP4_IPCM_TAG || tag == MOV_MP4_FPCM_TAG) {
1411  if (track->par->ch_layout.nb_channels > 1)
1412  ret = mov_write_chnl_tag(s, pb, track);
1413  if (ret < 0)
1414  return ret;
1415  ret = mov_write_pcmc_tag(s, pb, track);
1416  } else if (track->vos_len > 0)
1417  ret = mov_write_glbl_tag(pb, track);
1418 
1419  if (ret < 0)
1420  return ret;
1421 
1422  if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1423  && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1424  return ret;
1425  }
1426 
1427  if (mov->encryption_scheme != MOV_ENC_NONE
1428  && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1429  return ret;
1430  }
1431 
1432  if (mov->write_btrt &&
1433  ((ret = mov_write_btrt_tag(pb, track)) < 0))
1434  return ret;
1435 
1436  ret = update_size(pb, pos);
1437  return ret;
1438 }
1439 
1441 {
1442  avio_wb32(pb, 0xf); /* size */
1443  ffio_wfourcc(pb, "d263");
1444  ffio_wfourcc(pb, "FFMP");
1445  avio_w8(pb, 0); /* decoder version */
1446  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1447  avio_w8(pb, 0xa); /* level */
1448  avio_w8(pb, 0); /* profile */
1449  return 0xf;
1450 }
1451 
1452 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1453 {
1454  int64_t pos = avio_tell(pb);
1455 
1456  avio_wb32(pb, 0);
1457  ffio_wfourcc(pb, "av1C");
1458  ff_isom_write_av1c(pb, track->vos_data, track->vos_len, track->mode != MODE_AVIF);
1459  return update_size(pb, pos);
1460 }
1461 
1462 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1463 {
1464  int64_t pos = avio_tell(pb);
1465 
1466  avio_wb32(pb, 0);
1467  ffio_wfourcc(pb, "avcC");
1468  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1469  return update_size(pb, pos);
1470 }
1471 
1473 {
1474  int64_t pos = avio_tell(pb);
1475 
1476  avio_wb32(pb, 0);
1477  ffio_wfourcc(pb, "vpcC");
1478  ff_isom_write_vpcc(s, pb, track->vos_data, track->vos_len, track->par);
1479  return update_size(pb, pos);
1480 }
1481 
1482 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1483 {
1484  int64_t pos = avio_tell(pb);
1485 
1486  avio_wb32(pb, 0);
1487  ffio_wfourcc(pb, "hvcC");
1488  if (track->tag == MKTAG('h','v','c','1'))
1489  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1490  else
1491  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1492  return update_size(pb, pos);
1493 }
1494 
1495 static int mov_write_evcc_tag(AVIOContext *pb, MOVTrack *track)
1496 {
1497  int64_t pos = avio_tell(pb);
1498 
1499  avio_wb32(pb, 0);
1500  ffio_wfourcc(pb, "evcC");
1501 
1502  if (track->tag == MKTAG('e','v','c','1'))
1503  ff_isom_write_evcc(pb, track->vos_data, track->vos_len, 1);
1504  else
1505  ff_isom_write_evcc(pb, track->vos_data, track->vos_len, 0);
1506 
1507  return update_size(pb, pos);
1508 }
1509 
1510 static int mov_write_vvcc_tag(AVIOContext *pb, MOVTrack *track)
1511 {
1512  int64_t pos = avio_tell(pb);
1513 
1514  avio_wb32(pb, 0);
1515  ffio_wfourcc(pb, "vvcC");
1516 
1517  avio_w8 (pb, 0); /* version */
1518  avio_wb24(pb, 0); /* flags */
1519 
1520  if (track->tag == MKTAG('v','v','c','1'))
1521  ff_isom_write_vvcc(pb, track->vos_data, track->vos_len, 1);
1522  else
1523  ff_isom_write_vvcc(pb, track->vos_data, track->vos_len, 0);
1524  return update_size(pb, pos);
1525 }
1526 
1527 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1528 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1529 {
1530  int interlaced;
1531  int cid;
1532  int display_width = track->par->width;
1533 
1534  if (track->vos_data && track->vos_len > 0x29) {
1535  if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1536  /* looks like a DNxHD bit stream */
1537  interlaced = (track->vos_data[5] & 2);
1538  cid = AV_RB32(track->vos_data + 0x28);
1539  } else {
1540  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1541  return 0;
1542  }
1543  } else {
1544  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1545  return 0;
1546  }
1547 
1548  avio_wb32(pb, 24); /* size */
1549  ffio_wfourcc(pb, "ACLR");
1550  ffio_wfourcc(pb, "ACLR");
1551  ffio_wfourcc(pb, "0001");
1552  if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1554  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1555  } else { /* Full range (0-255) */
1556  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1557  }
1558  avio_wb32(pb, 0); /* unknown */
1559 
1560  if (track->tag == MKTAG('A','V','d','h')) {
1561  avio_wb32(pb, 32);
1562  ffio_wfourcc(pb, "ADHR");
1563  ffio_wfourcc(pb, "0001");
1564  avio_wb32(pb, cid);
1565  avio_wb32(pb, 0); /* unknown */
1566  avio_wb32(pb, 1); /* unknown */
1567  avio_wb32(pb, 0); /* unknown */
1568  avio_wb32(pb, 0); /* unknown */
1569  return 0;
1570  }
1571 
1572  avio_wb32(pb, 24); /* size */
1573  ffio_wfourcc(pb, "APRG");
1574  ffio_wfourcc(pb, "APRG");
1575  ffio_wfourcc(pb, "0001");
1576  avio_wb32(pb, 1); /* unknown */
1577  avio_wb32(pb, 0); /* unknown */
1578 
1579  avio_wb32(pb, 120); /* size */
1580  ffio_wfourcc(pb, "ARES");
1581  ffio_wfourcc(pb, "ARES");
1582  ffio_wfourcc(pb, "0001");
1583  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1584  if ( track->par->sample_aspect_ratio.num > 0
1585  && track->par->sample_aspect_ratio.den > 0)
1586  display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1587  avio_wb32(pb, display_width);
1588  /* values below are based on samples created with quicktime and avid codecs */
1589  if (interlaced) {
1590  avio_wb32(pb, track->par->height / 2);
1591  avio_wb32(pb, 2); /* unknown */
1592  avio_wb32(pb, 0); /* unknown */
1593  avio_wb32(pb, 4); /* unknown */
1594  } else {
1595  avio_wb32(pb, track->par->height);
1596  avio_wb32(pb, 1); /* unknown */
1597  avio_wb32(pb, 0); /* unknown */
1598  if (track->par->height == 1080)
1599  avio_wb32(pb, 5); /* unknown */
1600  else
1601  avio_wb32(pb, 6); /* unknown */
1602  }
1603  /* padding */
1604  ffio_fill(pb, 0, 10 * 8);
1605 
1606  return 0;
1607 }
1608 
1609 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1610 {
1611  avio_wb32(pb, 12);
1612  ffio_wfourcc(pb, "DpxE");
1613  if (track->par->extradata_size >= 12 &&
1614  !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1615  avio_wb32(pb, track->par->extradata[11]);
1616  } else {
1617  avio_wb32(pb, 1);
1618  }
1619  return 0;
1620 }
1621 
1623 {
1624  int tag;
1625 
1626  if (track->par->width == 720) { /* SD */
1627  if (track->par->height == 480) { /* NTSC */
1628  if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1629  else tag = MKTAG('d','v','c',' ');
1630  }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1631  else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1632  else tag = MKTAG('d','v','p','p');
1633  } else if (track->par->height == 720) { /* HD 720 line */
1634  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1635  else tag = MKTAG('d','v','h','p');
1636  } else if (track->par->height == 1080) { /* HD 1080 line */
1637  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1638  else tag = MKTAG('d','v','h','6');
1639  } else {
1640  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1641  return 0;
1642  }
1643 
1644  return tag;
1645 }
1646 
1648 {
1649  AVRational rational_framerate = st->avg_frame_rate;
1650  int rate = 0;
1651  if (rational_framerate.den != 0)
1652  rate = av_q2d(rational_framerate);
1653  return rate;
1654 }
1655 
1657 {
1658  int tag = track->par->codec_tag;
1660  AVStream *st = track->st;
1661  int rate = defined_frame_rate(s, st);
1662 
1663  if (!tag)
1664  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1665 
1666  if (track->par->format == AV_PIX_FMT_YUV420P) {
1667  if (track->par->width == 1280 && track->par->height == 720) {
1668  if (!interlaced) {
1669  if (rate == 24) tag = MKTAG('x','d','v','4');
1670  else if (rate == 25) tag = MKTAG('x','d','v','5');
1671  else if (rate == 30) tag = MKTAG('x','d','v','1');
1672  else if (rate == 50) tag = MKTAG('x','d','v','a');
1673  else if (rate == 60) tag = MKTAG('x','d','v','9');
1674  }
1675  } else if (track->par->width == 1440 && track->par->height == 1080) {
1676  if (!interlaced) {
1677  if (rate == 24) tag = MKTAG('x','d','v','6');
1678  else if (rate == 25) tag = MKTAG('x','d','v','7');
1679  else if (rate == 30) tag = MKTAG('x','d','v','8');
1680  } else {
1681  if (rate == 25) tag = MKTAG('x','d','v','3');
1682  else if (rate == 30) tag = MKTAG('x','d','v','2');
1683  }
1684  } else if (track->par->width == 1920 && track->par->height == 1080) {
1685  if (!interlaced) {
1686  if (rate == 24) tag = MKTAG('x','d','v','d');
1687  else if (rate == 25) tag = MKTAG('x','d','v','e');
1688  else if (rate == 30) tag = MKTAG('x','d','v','f');
1689  } else {
1690  if (rate == 25) tag = MKTAG('x','d','v','c');
1691  else if (rate == 30) tag = MKTAG('x','d','v','b');
1692  }
1693  }
1694  } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1695  if (track->par->width == 1280 && track->par->height == 720) {
1696  if (!interlaced) {
1697  if (rate == 24) tag = MKTAG('x','d','5','4');
1698  else if (rate == 25) tag = MKTAG('x','d','5','5');
1699  else if (rate == 30) tag = MKTAG('x','d','5','1');
1700  else if (rate == 50) tag = MKTAG('x','d','5','a');
1701  else if (rate == 60) tag = MKTAG('x','d','5','9');
1702  }
1703  } else if (track->par->width == 1920 && track->par->height == 1080) {
1704  if (!interlaced) {
1705  if (rate == 24) tag = MKTAG('x','d','5','d');
1706  else if (rate == 25) tag = MKTAG('x','d','5','e');
1707  else if (rate == 30) tag = MKTAG('x','d','5','f');
1708  } else {
1709  if (rate == 25) tag = MKTAG('x','d','5','c');
1710  else if (rate == 30) tag = MKTAG('x','d','5','b');
1711  }
1712  }
1713  }
1714 
1715  return tag;
1716 }
1717 
1719 {
1720  int tag = track->par->codec_tag;
1722  AVStream *st = track->st;
1723  int rate = defined_frame_rate(s, st);
1724 
1725  if (!tag)
1726  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1727 
1728  if (track->par->format == AV_PIX_FMT_YUV420P10) {
1729  if (track->par->width == 960 && track->par->height == 720) {
1730  if (!interlaced) {
1731  if (rate == 24) tag = MKTAG('a','i','5','p');
1732  else if (rate == 25) tag = MKTAG('a','i','5','q');
1733  else if (rate == 30) tag = MKTAG('a','i','5','p');
1734  else if (rate == 50) tag = MKTAG('a','i','5','q');
1735  else if (rate == 60) tag = MKTAG('a','i','5','p');
1736  }
1737  } else if (track->par->width == 1440 && track->par->height == 1080) {
1738  if (!interlaced) {
1739  if (rate == 24) tag = MKTAG('a','i','5','3');
1740  else if (rate == 25) tag = MKTAG('a','i','5','2');
1741  else if (rate == 30) tag = MKTAG('a','i','5','3');
1742  } else {
1743  if (rate == 50) tag = MKTAG('a','i','5','5');
1744  else if (rate == 60) tag = MKTAG('a','i','5','6');
1745  }
1746  }
1747  } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1748  if (track->par->width == 1280 && track->par->height == 720) {
1749  if (!interlaced) {
1750  if (rate == 24) tag = MKTAG('a','i','1','p');
1751  else if (rate == 25) tag = MKTAG('a','i','1','q');
1752  else if (rate == 30) tag = MKTAG('a','i','1','p');
1753  else if (rate == 50) tag = MKTAG('a','i','1','q');
1754  else if (rate == 60) tag = MKTAG('a','i','1','p');
1755  }
1756  } else if (track->par->width == 1920 && track->par->height == 1080) {
1757  if (!interlaced) {
1758  if (rate == 24) tag = MKTAG('a','i','1','3');
1759  else if (rate == 25) tag = MKTAG('a','i','1','2');
1760  else if (rate == 30) tag = MKTAG('a','i','1','3');
1761  } else {
1762  if (rate == 25) tag = MKTAG('a','i','1','5');
1763  else if (rate == 50) tag = MKTAG('a','i','1','5');
1764  else if (rate == 60) tag = MKTAG('a','i','1','6');
1765  }
1766  } else if ( track->par->width == 4096 && track->par->height == 2160
1767  || track->par->width == 3840 && track->par->height == 2160
1768  || track->par->width == 2048 && track->par->height == 1080) {
1769  tag = MKTAG('a','i','v','x');
1770  }
1771  }
1772 
1773  return tag;
1774 }
1775 
1777 {
1778  int tag = track->par->codec_tag;
1779 
1780  if (!tag)
1781  tag = MKTAG('e', 'v', 'c', '1');
1782 
1783  return tag;
1784 }
1785 
1786 static const struct {
1788  uint32_t tag;
1789  unsigned bps;
1790 } mov_pix_fmt_tags[] = {
1791  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1792  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1793  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1794  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1795  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1796  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1797  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1798  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1799  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1800  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1801  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1802  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1803  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1804  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1805  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1806 };
1807 
1809 {
1810  int tag = MKTAG('A','V','d','n');
1811  if (track->par->profile != AV_PROFILE_UNKNOWN &&
1812  track->par->profile != AV_PROFILE_DNXHD)
1813  tag = MKTAG('A','V','d','h');
1814  return tag;
1815 }
1816 
1818 {
1819  int tag = track->par->codec_tag;
1820  int i;
1821  enum AVPixelFormat pix_fmt;
1822 
1823  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1824  if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1825  tag = mov_pix_fmt_tags[i].tag;
1827  if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1828  break;
1829  }
1830  }
1831 
1833  track->par->bits_per_coded_sample);
1834  if (tag == MKTAG('r','a','w',' ') &&
1835  track->par->format != pix_fmt &&
1836  track->par->format != AV_PIX_FMT_GRAY8 &&
1837  track->par->format != AV_PIX_FMT_NONE)
1838  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1839  av_get_pix_fmt_name(track->par->format));
1840  return tag;
1841 }
1842 
1843 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1844 {
1845  unsigned int tag = track->par->codec_tag;
1846 
1847  // "rtp " is used to distinguish internally created RTP-hint tracks
1848  // (with rtp_ctx) from other tracks.
1849  if (tag == MKTAG('r','t','p',' '))
1850  tag = 0;
1851  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1852  (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1853  track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1854  track->par->codec_id == AV_CODEC_ID_H263 ||
1855  track->par->codec_id == AV_CODEC_ID_H264 ||
1856  track->par->codec_id == AV_CODEC_ID_DNXHD ||
1857  track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1858  av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1859  if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1860  tag = mov_get_dv_codec_tag(s, track);
1861  else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1862  tag = mov_get_rawvideo_codec_tag(s, track);
1863  else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1865  else if (track->par->codec_id == AV_CODEC_ID_H264)
1866  tag = mov_get_h264_codec_tag(s, track);
1867  else if (track->par->codec_id == AV_CODEC_ID_EVC)
1868  tag = mov_get_evc_codec_tag(s, track);
1869  else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1870  tag = mov_get_dnxhd_codec_tag(s, track);
1871  else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1873  if (!tag) { // if no mac fcc found, try with Microsoft tags
1875  if (tag)
1876  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1877  "the file may be unplayable!\n");
1878  }
1879  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1881  if (!tag) { // if no mac fcc found, try with Microsoft tags
1882  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1883  if (ms_tag) {
1884  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1885  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1886  "the file may be unplayable!\n");
1887  }
1888  }
1889  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1891  }
1892 
1893  return tag;
1894 }
1895 
1897  { AV_CODEC_ID_MJPEG, 0xD },
1898  { AV_CODEC_ID_PNG, 0xE },
1899  { AV_CODEC_ID_BMP, 0x1B },
1900  { AV_CODEC_ID_NONE, 0 },
1901 };
1902 
1903 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1904  unsigned int tag, int codec_id)
1905 {
1906  int i;
1907 
1908  /**
1909  * Check that tag + id is in the table
1910  */
1911  for (i = 0; tags && tags[i]; i++) {
1912  const AVCodecTag *codec_tags = tags[i];
1913  while (codec_tags->id != AV_CODEC_ID_NONE) {
1914  if (ff_toupper4(codec_tags->tag) == ff_toupper4(tag) &&
1915  codec_tags->id == codec_id)
1916  return codec_tags->tag;
1917  codec_tags++;
1918  }
1919  }
1920  return 0;
1921 }
1922 
1923 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1924 {
1925  if (is_cover_image(track->st))
1927 
1928  if (track->mode == MODE_IPOD)
1929  if (!av_match_ext(s->url, "m4a") &&
1930  !av_match_ext(s->url, "m4v") &&
1931  !av_match_ext(s->url, "m4b"))
1932  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1933  "Quicktime/Ipod might not play the file\n");
1934 
1935  if (track->mode == MODE_MOV) {
1936  return mov_get_codec_tag(s, track);
1937  } else
1938  return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1939  track->par->codec_id);
1940 }
1941 
1942 /** Write uuid atom.
1943  * Needed to make file play in iPods running newest firmware
1944  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1945  */
1947 {
1948  avio_wb32(pb, 28);
1949  ffio_wfourcc(pb, "uuid");
1950  avio_wb32(pb, 0x6b6840f2);
1951  avio_wb32(pb, 0x5f244fc5);
1952  avio_wb32(pb, 0xba39a51b);
1953  avio_wb32(pb, 0xcf0323f3);
1954  avio_wb32(pb, 0x0);
1955  return 28;
1956 }
1957 
1958 static const uint16_t fiel_data[] = {
1959  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1960 };
1961 
1962 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1963 {
1964  unsigned mov_field_order = 0;
1965  if (field_order < FF_ARRAY_ELEMS(fiel_data))
1966  mov_field_order = fiel_data[field_order];
1967  else
1968  return 0;
1969  avio_wb32(pb, 10);
1970  ffio_wfourcc(pb, "fiel");
1971  avio_wb16(pb, mov_field_order);
1972  return 10;
1973 }
1974 
1976 {
1977  MOVMuxContext *mov = s->priv_data;
1978  int ret = AVERROR_BUG;
1979  int64_t pos = avio_tell(pb);
1980  avio_wb32(pb, 0); /* size */
1981  avio_wl32(pb, track->tag); // store it byteswapped
1982  avio_wb32(pb, 0); /* Reserved */
1983  avio_wb16(pb, 0); /* Reserved */
1984  avio_wb16(pb, 1); /* Data-reference index */
1985 
1986  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1987  mov_write_esds_tag(pb, track);
1988  else if (track->par->codec_id == AV_CODEC_ID_TTML) {
1989  switch (track->par->codec_tag) {
1990  case MOV_ISMV_TTML_TAG:
1991  // ISMV dfxp requires no extradata.
1992  break;
1993  case MOV_MP4_TTML_TAG:
1994  // As specified in 14496-30, XMLSubtitleSampleEntry
1995  // Namespace
1996  avio_put_str(pb, "http://www.w3.org/ns/ttml");
1997  // Empty schema_location
1998  avio_w8(pb, 0);
1999  // Empty auxiliary_mime_types
2000  avio_w8(pb, 0);
2001  break;
2002  default:
2004  "Unknown codec tag '%s' utilized for TTML stream with "
2005  "index %d (track id %d)!\n",
2006  av_fourcc2str(track->par->codec_tag), track->st->index,
2007  track->track_id);
2008  return AVERROR(EINVAL);
2009  }
2010  } else if (track->par->extradata_size)
2011  avio_write(pb, track->par->extradata, track->par->extradata_size);
2012 
2013  if (mov->write_btrt &&
2014  ((ret = mov_write_btrt_tag(pb, track)) < 0))
2015  return ret;
2016 
2017  return update_size(pb, pos);
2018 }
2019 
2021 {
2022  int8_t stereo_mode;
2023 
2024  if (stereo_3d->flags != 0) {
2025  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
2026  return 0;
2027  }
2028 
2029  switch (stereo_3d->type) {
2030  case AV_STEREO3D_2D:
2031  stereo_mode = 0;
2032  break;
2033  case AV_STEREO3D_TOPBOTTOM:
2034  stereo_mode = 1;
2035  break;
2037  stereo_mode = 2;
2038  break;
2039  default:
2040  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
2041  return 0;
2042  }
2043  avio_wb32(pb, 13); /* size */
2044  ffio_wfourcc(pb, "st3d");
2045  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
2046  avio_w8(pb, stereo_mode);
2047  return 13;
2048 }
2049 
2051 {
2052  int64_t sv3d_pos, svhd_pos, proj_pos;
2053  const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
2054 
2055  if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
2056  spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
2057  spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
2058  av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
2059  return 0;
2060  }
2061 
2062  sv3d_pos = avio_tell(pb);
2063  avio_wb32(pb, 0); /* size */
2064  ffio_wfourcc(pb, "sv3d");
2065 
2066  svhd_pos = avio_tell(pb);
2067  avio_wb32(pb, 0); /* size */
2068  ffio_wfourcc(pb, "svhd");
2069  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
2070  avio_put_str(pb, metadata_source);
2071  update_size(pb, svhd_pos);
2072 
2073  proj_pos = avio_tell(pb);
2074  avio_wb32(pb, 0); /* size */
2075  ffio_wfourcc(pb, "proj");
2076 
2077  avio_wb32(pb, 24); /* size */
2078  ffio_wfourcc(pb, "prhd");
2079  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
2080  avio_wb32(pb, spherical_mapping->yaw);
2081  avio_wb32(pb, spherical_mapping->pitch);
2082  avio_wb32(pb, spherical_mapping->roll);
2083 
2084  switch (spherical_mapping->projection) {
2087  avio_wb32(pb, 28); /* size */
2088  ffio_wfourcc(pb, "equi");
2089  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
2090  avio_wb32(pb, spherical_mapping->bound_top);
2091  avio_wb32(pb, spherical_mapping->bound_bottom);
2092  avio_wb32(pb, spherical_mapping->bound_left);
2093  avio_wb32(pb, spherical_mapping->bound_right);
2094  break;
2095  case AV_SPHERICAL_CUBEMAP:
2096  avio_wb32(pb, 20); /* size */
2097  ffio_wfourcc(pb, "cbmp");
2098  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
2099  avio_wb32(pb, 0); /* layout */
2100  avio_wb32(pb, spherical_mapping->padding); /* padding */
2101  break;
2102  }
2103  update_size(pb, proj_pos);
2104 
2105  return update_size(pb, sv3d_pos);
2106 }
2107 
2109 {
2110  uint8_t buf[ISOM_DVCC_DVVC_SIZE];
2111 
2112  avio_wb32(pb, 32); /* size = 8 + 24 */
2113  if (dovi->dv_profile > 10)
2114  ffio_wfourcc(pb, "dvwC");
2115  else if (dovi->dv_profile > 7)
2116  ffio_wfourcc(pb, "dvvC");
2117  else
2118  ffio_wfourcc(pb, "dvcC");
2119 
2120  ff_isom_put_dvcc_dvvc(s, buf, dovi);
2121  avio_write(pb, buf, sizeof(buf));
2122 
2123  return 32; /* 8 + 24 */
2124 }
2125 
2126 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
2127 {
2128  avio_wb32(pb, 40);
2129  ffio_wfourcc(pb, "clap");
2130  avio_wb32(pb, track->par->width); /* apertureWidth_N */
2131  avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
2132  avio_wb32(pb, track->height); /* apertureHeight_N */
2133  avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
2134  avio_wb32(pb, 0); /* horizOff_N (= 0) */
2135  avio_wb32(pb, 1); /* horizOff_D (= 1) */
2136  avio_wb32(pb, 0); /* vertOff_N (= 0) */
2137  avio_wb32(pb, 1); /* vertOff_D (= 1) */
2138  return 40;
2139 }
2140 
2141 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
2142 {
2143  AVRational sar;
2144  av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
2145  track->par->sample_aspect_ratio.den, INT_MAX);
2146 
2147  avio_wb32(pb, 16);
2148  ffio_wfourcc(pb, "pasp");
2149  avio_wb32(pb, sar.num);
2150  avio_wb32(pb, sar.den);
2151  return 16;
2152 }
2153 
2154 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
2155 {
2156  uint32_t gama = 0;
2157  if (gamma <= 0.0)
2158  gamma = av_csp_approximate_trc_gamma(track->par->color_trc);
2159  av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
2160 
2161  if (gamma > 1e-6) {
2162  gama = (uint32_t)lrint((double)(1<<16) * gamma);
2163  av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
2164 
2165  av_assert0(track->mode == MODE_MOV);
2166  avio_wb32(pb, 12);
2167  ffio_wfourcc(pb, "gama");
2168  avio_wb32(pb, gama);
2169  return 12;
2170  } else {
2171  av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
2172  }
2173  return 0;
2174 }
2175 
2176 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
2177 {
2178  int64_t pos = avio_tell(pb);
2179 
2180  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
2181  // Ref (MP4): ISO/IEC 14496-12:2012
2182 
2183  if (prefer_icc) {
2185  track->st->codecpar->nb_coded_side_data,
2187 
2188  if (sd) {
2189  avio_wb32(pb, 12 + sd->size);
2190  ffio_wfourcc(pb, "colr");
2191  ffio_wfourcc(pb, "prof");
2192  avio_write(pb, sd->data, sd->size);
2193  return 12 + sd->size;
2194  }
2195  else {
2196  av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n");
2197  }
2198  }
2199 
2200  /* We should only ever be called for MOV, MP4 and AVIF. */
2201  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4 ||
2202  track->mode == MODE_AVIF);
2203 
2204  avio_wb32(pb, 0); /* size */
2205  ffio_wfourcc(pb, "colr");
2206  if (track->mode == MODE_MP4 || track->mode == MODE_AVIF)
2207  ffio_wfourcc(pb, "nclx");
2208  else
2209  ffio_wfourcc(pb, "nclc");
2210  // Do not try to guess the color info if it is AVCOL_PRI_UNSPECIFIED.
2211  // e.g., Dolby Vision for Apple devices should be set to AVCOL_PRI_UNSPECIFIED. See
2212  // https://developer.apple.com/av-foundation/High-Dynamic-Range-Metadata-for-Apple-Devices.pdf
2213  avio_wb16(pb, track->par->color_primaries);
2214  avio_wb16(pb, track->par->color_trc);
2215  avio_wb16(pb, track->par->color_space);
2216  if (track->mode == MODE_MP4 || track->mode == MODE_AVIF) {
2217  int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
2218  avio_w8(pb, full_range << 7);
2219  }
2220 
2221  return update_size(pb, pos);
2222 }
2223 
2224 static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track)
2225 {
2226  const AVPacketSideData *side_data;
2227  const AVContentLightMetadata *content_light_metadata;
2228 
2229  side_data = av_packet_side_data_get(track->st->codecpar->coded_side_data,
2230  track->st->codecpar->nb_coded_side_data,
2232  if (!side_data) {
2233  return 0;
2234  }
2235  content_light_metadata = (const AVContentLightMetadata*)side_data->data;
2236 
2237  avio_wb32(pb, 12); // size
2238  ffio_wfourcc(pb, "clli");
2239  avio_wb16(pb, content_light_metadata->MaxCLL);
2240  avio_wb16(pb, content_light_metadata->MaxFALL);
2241  return 12;
2242 }
2243 
2244 static inline int64_t rescale_rational(AVRational q, int b)
2245 {
2246  return av_rescale(q.num, b, q.den);
2247 }
2248 
2249 static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track)
2250 {
2251  const int chroma_den = 50000;
2252  const int luma_den = 10000;
2253  const AVPacketSideData *side_data;
2254  const AVMasteringDisplayMetadata *metadata = NULL;
2255 
2256  side_data = av_packet_side_data_get(track->st->codecpar->coded_side_data,
2257  track->st->codecpar->nb_coded_side_data,
2259  if (side_data)
2260  metadata = (const AVMasteringDisplayMetadata*)side_data->data;
2261  if (!metadata || !metadata->has_primaries || !metadata->has_luminance) {
2262  return 0;
2263  }
2264 
2265  avio_wb32(pb, 32); // size
2266  ffio_wfourcc(pb, "mdcv");
2267  avio_wb16(pb, rescale_rational(metadata->display_primaries[1][0], chroma_den));
2268  avio_wb16(pb, rescale_rational(metadata->display_primaries[1][1], chroma_den));
2269  avio_wb16(pb, rescale_rational(metadata->display_primaries[2][0], chroma_den));
2270  avio_wb16(pb, rescale_rational(metadata->display_primaries[2][1], chroma_den));
2271  avio_wb16(pb, rescale_rational(metadata->display_primaries[0][0], chroma_den));
2272  avio_wb16(pb, rescale_rational(metadata->display_primaries[0][1], chroma_den));
2273  avio_wb16(pb, rescale_rational(metadata->white_point[0], chroma_den));
2274  avio_wb16(pb, rescale_rational(metadata->white_point[1], chroma_den));
2275  avio_wb32(pb, rescale_rational(metadata->max_luminance, luma_den));
2276  avio_wb32(pb, rescale_rational(metadata->min_luminance, luma_den));
2277  return 32;
2278 }
2279 
2280 static int mov_write_amve_tag(AVIOContext *pb, MOVTrack *track)
2281 {
2282  const int illuminance_den = 10000;
2283  const int ambient_den = 50000;
2284  const AVPacketSideData *side_data;
2285  const AVAmbientViewingEnvironment *ambient;
2286 
2287 
2288  side_data = av_packet_side_data_get(track->st->codecpar->coded_side_data,
2289  track->st->codecpar->nb_coded_side_data,
2291 
2292  if (!side_data)
2293  return 0;
2294 
2295  ambient = (const AVAmbientViewingEnvironment*)side_data->data;
2296  if (!ambient || !ambient->ambient_illuminance.num)
2297  return 0;
2298 
2299  avio_wb32(pb, 16); // size
2300  ffio_wfourcc(pb, "amve");
2301  avio_wb32(pb, rescale_rational(ambient->ambient_illuminance, illuminance_den));
2302  avio_wb16(pb, rescale_rational(ambient->ambient_light_x, ambient_den));
2303  avio_wb16(pb, rescale_rational(ambient->ambient_light_y, ambient_den));
2304  return 16;
2305 }
2306 
2307 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
2308 {
2309  AVDictionaryEntry *encoder;
2310  int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
2311  || (track->par->width == 1440 && track->par->height == 1080)
2312  || (track->par->width == 1920 && track->par->height == 1080);
2313 
2314  if ((track->mode == MODE_AVIF ||
2315  track->mode == MODE_MOV ||
2316  track->mode == MODE_MP4) &&
2317  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
2318  av_strlcpy(compressor_name, encoder->value, 32);
2319  } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
2321  AVStream *st = track->st;
2322  int rate = defined_frame_rate(NULL, st);
2323  av_strlcatf(compressor_name, len, "XDCAM");
2324  if (track->par->format == AV_PIX_FMT_YUV422P) {
2325  av_strlcatf(compressor_name, len, " HD422");
2326  } else if(track->par->width == 1440) {
2327  av_strlcatf(compressor_name, len, " HD");
2328  } else
2329  av_strlcatf(compressor_name, len, " EX");
2330 
2331  av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
2332 
2333  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
2334  }
2335 }
2336 
2338 {
2339  int64_t pos = avio_tell(pb);
2340  // Write sane defaults:
2341  // all_ref_pics_intra = 0 : all samples can use any type of reference.
2342  // intra_pred_used = 1 : intra prediction may or may not be used.
2343  // max_ref_per_pic = 15 : reserved value to indicate that any number of
2344  // reference images can be used.
2345  uint8_t ccstValue = (0 << 7) | /* all_ref_pics_intra */
2346  (1 << 6) | /* intra_pred_used */
2347  (15 << 2); /* max_ref_per_pic */
2348  avio_wb32(pb, 0); /* size */
2349  ffio_wfourcc(pb, "ccst");
2350  avio_wb32(pb, 0); /* Version & flags */
2351  avio_w8(pb, ccstValue);
2352  avio_wb24(pb, 0); /* reserved */
2353  return update_size(pb, pos);
2354 }
2355 
2356 static int mov_write_aux_tag(AVIOContext *pb, const char *aux_type)
2357 {
2358  int64_t pos = avio_tell(pb);
2359  avio_wb32(pb, 0); /* size */
2360  ffio_wfourcc(pb, aux_type);
2361  avio_wb32(pb, 0); /* Version & flags */
2362  avio_write(pb, "urn:mpeg:mpegB:cicp:systems:auxiliary:alpha\0", 44);
2363  return update_size(pb, pos);
2364 }
2365 
2367 {
2368  int ret = AVERROR_BUG;
2369  int64_t pos = avio_tell(pb);
2370  char compressor_name[32] = { 0 };
2371  int avid = 0;
2372 
2373  int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
2374  || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
2375  || track->par->codec_id == AV_CODEC_ID_V308
2376  || track->par->codec_id == AV_CODEC_ID_V408
2377  || track->par->codec_id == AV_CODEC_ID_V410
2378  || track->par->codec_id == AV_CODEC_ID_V210);
2379 
2380  avio_wb32(pb, 0); /* size */
2381  if (mov->encryption_scheme != MOV_ENC_NONE) {
2382  ffio_wfourcc(pb, "encv");
2383  } else {
2384  avio_wl32(pb, track->tag); // store it byteswapped
2385  }
2386  avio_wb32(pb, 0); /* Reserved */
2387  avio_wb16(pb, 0); /* Reserved */
2388  avio_wb16(pb, 1); /* Data-reference index */
2389 
2390  if (uncompressed_ycbcr) {
2391  avio_wb16(pb, 2); /* Codec stream version */
2392  } else {
2393  avio_wb16(pb, 0); /* Codec stream version */
2394  }
2395  avio_wb16(pb, 0); /* Codec stream revision (=0) */
2396  if (track->mode == MODE_MOV) {
2397  ffio_wfourcc(pb, "FFMP"); /* Vendor */
2398  if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
2399  avio_wb32(pb, 0); /* Temporal Quality */
2400  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
2401  } else {
2402  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
2403  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
2404  }
2405  } else {
2406  ffio_fill(pb, 0, 3 * 4); /* Reserved */
2407  }
2408  avio_wb16(pb, track->par->width); /* Video width */
2409  avio_wb16(pb, track->height); /* Video height */
2410  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
2411  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
2412  avio_wb32(pb, 0); /* Data size (= 0) */
2413  avio_wb16(pb, 1); /* Frame count (= 1) */
2414 
2415  find_compressor(compressor_name, 32, track);
2416  avio_w8(pb, strlen(compressor_name));
2417  avio_write(pb, compressor_name, 31);
2418 
2419  if (track->mode == MODE_MOV &&
2420  (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
2421  avio_wb16(pb, 0x18);
2422  else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2423  avio_wb16(pb, track->par->bits_per_coded_sample |
2424  (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2425  else
2426  avio_wb16(pb, 0x18); /* Reserved */
2427 
2428  if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2429  int pal_size, i;
2430  avio_wb16(pb, 0); /* Color table ID */
2431  avio_wb32(pb, 0); /* Color table seed */
2432  avio_wb16(pb, 0x8000); /* Color table flags */
2433  if (track->par->bits_per_coded_sample < 0 || track->par->bits_per_coded_sample > 8)
2434  return AVERROR(EINVAL);
2435  pal_size = 1 << track->par->bits_per_coded_sample;
2436  avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2437  for (i = 0; i < pal_size; i++) {
2438  uint32_t rgb = track->palette[i];
2439  uint16_t r = (rgb >> 16) & 0xff;
2440  uint16_t g = (rgb >> 8) & 0xff;
2441  uint16_t b = rgb & 0xff;
2442  avio_wb16(pb, 0);
2443  avio_wb16(pb, (r << 8) | r);
2444  avio_wb16(pb, (g << 8) | g);
2445  avio_wb16(pb, (b << 8) | b);
2446  }
2447  } else
2448  avio_wb16(pb, 0xffff); /* Reserved */
2449 
2450  if (track->tag == MKTAG('m','p','4','v'))
2451  mov_write_esds_tag(pb, track);
2452  else if (track->par->codec_id == AV_CODEC_ID_H263)
2453  mov_write_d263_tag(pb);
2454  else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2455  track->par->codec_id == AV_CODEC_ID_SVQ3) {
2456  mov_write_extradata_tag(pb, track);
2457  avio_wb32(pb, 0);
2458  } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2459  mov_write_avid_tag(pb, track);
2460  avid = 1;
2461  } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2462  mov_write_hvcc_tag(pb, track);
2463  else if (track->par->codec_id == AV_CODEC_ID_VVC)
2464  mov_write_vvcc_tag(pb, track);
2465  else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2466  mov_write_avcc_tag(pb, track);
2467  if (track->mode == MODE_IPOD)
2469  }
2470  else if (track->par->codec_id ==AV_CODEC_ID_EVC) {
2471  mov_write_evcc_tag(pb, track);
2472  } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2473  mov_write_vpcc_tag(mov->fc, pb, track);
2474  } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2475  mov_write_av1c_tag(pb, track);
2476  } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2477  mov_write_dvc1_tag(pb, track);
2478  else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2479  track->par->codec_id == AV_CODEC_ID_VP6A) {
2480  /* Don't write any potential extradata here - the cropping
2481  * is signalled via the normal width/height fields. */
2482  } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2483  if (track->par->codec_tag == MKTAG('R','1','0','k'))
2484  mov_write_dpxe_tag(pb, track);
2485  } else if (track->vos_len > 0)
2486  mov_write_glbl_tag(pb, track);
2487 
2488  if (track->par->codec_id != AV_CODEC_ID_H264 &&
2489  track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2490  track->par->codec_id != AV_CODEC_ID_DNXHD) {
2491  int field_order = track->par->field_order;
2492 
2493  if (field_order != AV_FIELD_UNKNOWN)
2494  mov_write_fiel_tag(pb, track, field_order);
2495  }
2496 
2497  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2498  if (track->mode == MODE_MOV)
2499  mov_write_gama_tag(s, pb, track, mov->gamma);
2500  else
2501  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2502  }
2503  if (track->mode == MODE_MOV || track->mode == MODE_MP4 || track->mode == MODE_AVIF) {
2504  int has_color_info = track->par->color_primaries != AVCOL_PRI_UNSPECIFIED &&
2505  track->par->color_trc != AVCOL_TRC_UNSPECIFIED &&
2507  if (has_color_info || mov->flags & FF_MOV_FLAG_WRITE_COLR ||
2510  int prefer_icc = mov->flags & FF_MOV_FLAG_PREFER_ICC || !has_color_info;
2511  mov_write_colr_tag(pb, track, prefer_icc);
2512  }
2513  } else if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2514  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4 or AVIF.\n");
2515  }
2516 
2517  if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2518  mov_write_clli_tag(pb, track);
2519  mov_write_mdcv_tag(pb, track);
2520  mov_write_amve_tag(pb, track);
2521  }
2522 
2523  if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2525  track->st->codecpar->nb_coded_side_data,
2527  const AVPacketSideData *spherical_mapping = av_packet_side_data_get(track->st->codecpar->coded_side_data,
2528  track->st->codecpar->nb_coded_side_data,
2530  if (stereo_3d)
2531  mov_write_st3d_tag(s, pb, (AVStereo3D*)stereo_3d->data);
2532  if (spherical_mapping)
2533  mov_write_sv3d_tag(mov->fc, pb, (AVSphericalMapping*)spherical_mapping->data);
2534  }
2535 
2536  if (track->mode == MODE_MP4) {
2538  track->st->codecpar->nb_coded_side_data,
2540  if (dovi && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2542  } else if (dovi) {
2543  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'dvcC'/'dvvC' box. Requires -strict unofficial.\n");
2544  }
2545  }
2546 
2547  if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2548  mov_write_pasp_tag(pb, track);
2549  }
2550 
2551  if (uncompressed_ycbcr){
2552  mov_write_clap_tag(pb, track);
2553  }
2554 
2555  if (mov->encryption_scheme != MOV_ENC_NONE) {
2556  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2557  }
2558 
2559  if (mov->write_btrt &&
2560  ((ret = mov_write_btrt_tag(pb, track)) < 0))
2561  return ret;
2562 
2563  /* extra padding for avid stsd */
2564  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2565  if (avid)
2566  avio_wb32(pb, 0);
2567 
2568  if (track->mode == MODE_AVIF) {
2569  mov_write_ccst_tag(pb);
2570  if (mov->nb_streams > 0 && track == &mov->tracks[1])
2571  mov_write_aux_tag(pb, "auxi");
2572  }
2573 
2574  return update_size(pb, pos);
2575 }
2576 
2577 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2578 {
2579  int64_t pos = avio_tell(pb);
2580  avio_wb32(pb, 0); /* size */
2581  ffio_wfourcc(pb, "rtp ");
2582  avio_wb32(pb, 0); /* Reserved */
2583  avio_wb16(pb, 0); /* Reserved */
2584  avio_wb16(pb, 1); /* Data-reference index */
2585 
2586  avio_wb16(pb, 1); /* Hint track version */
2587  avio_wb16(pb, 1); /* Highest compatible version */
2588  avio_wb32(pb, track->max_packet_size); /* Max packet size */
2589 
2590  avio_wb32(pb, 12); /* size */
2591  ffio_wfourcc(pb, "tims");
2592  avio_wb32(pb, track->timescale);
2593 
2594  return update_size(pb, pos);
2595 }
2596 
2597 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2598 {
2599  uint64_t str_size =strlen(reel_name);
2600  int64_t pos = avio_tell(pb);
2601 
2602  if (str_size >= UINT16_MAX){
2603  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2604  avio_wb16(pb, 0);
2605  return AVERROR(EINVAL);
2606  }
2607 
2608  avio_wb32(pb, 0); /* size */
2609  ffio_wfourcc(pb, "name"); /* Data format */
2610  avio_wb16(pb, str_size); /* string size */
2611  avio_wb16(pb, track->language); /* langcode */
2612  avio_write(pb, reel_name, str_size); /* reel name */
2613  return update_size(pb,pos);
2614 }
2615 
2616 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2617 {
2618  int64_t pos = avio_tell(pb);
2619 #if 1
2620  int frame_duration;
2621  int nb_frames;
2622  AVDictionaryEntry *t = NULL;
2623 
2624  if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2625  av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2626  return AVERROR(EINVAL);
2627  } else {
2628  frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2629  nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2630  }
2631 
2632  if (nb_frames > 255) {
2633  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2634  return AVERROR(EINVAL);
2635  }
2636 
2637  avio_wb32(pb, 0); /* size */
2638  ffio_wfourcc(pb, "tmcd"); /* Data format */
2639  avio_wb32(pb, 0); /* Reserved */
2640  avio_wb32(pb, 1); /* Data reference index */
2641  avio_wb32(pb, 0); /* Flags */
2642  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2643  avio_wb32(pb, track->timescale); /* Timescale */
2644  avio_wb32(pb, frame_duration); /* Frame duration */
2645  avio_w8(pb, nb_frames); /* Number of frames */
2646  avio_w8(pb, 0); /* Reserved */
2647 
2648  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2649  if (t && utf8len(t->value) && track->mode != MODE_MP4)
2650  mov_write_source_reference_tag(pb, track, t->value);
2651  else
2652  avio_wb16(pb, 0); /* zero size */
2653 #else
2654 
2655  avio_wb32(pb, 0); /* size */
2656  ffio_wfourcc(pb, "tmcd"); /* Data format */
2657  avio_wb32(pb, 0); /* Reserved */
2658  avio_wb32(pb, 1); /* Data reference index */
2659  if (track->par->extradata_size)
2660  avio_write(pb, track->par->extradata, track->par->extradata_size);
2661 #endif
2662  return update_size(pb, pos);
2663 }
2664 
2665 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2666 {
2667  int64_t pos = avio_tell(pb);
2668  avio_wb32(pb, 0); /* size */
2669  ffio_wfourcc(pb, "gpmd");
2670  avio_wb32(pb, 0); /* Reserved */
2671  avio_wb16(pb, 0); /* Reserved */
2672  avio_wb16(pb, 1); /* Data-reference index */
2673  avio_wb32(pb, 0); /* Reserved */
2674  return update_size(pb, pos);
2675 }
2676 
2678 {
2679  int64_t pos = avio_tell(pb);
2680  int ret = 0;
2681  avio_wb32(pb, 0); /* size */
2682  ffio_wfourcc(pb, "stsd");
2683  avio_wb32(pb, 0); /* version & flags */
2684  avio_wb32(pb, 1); /* entry count */
2685  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2686  ret = mov_write_video_tag(s, pb, mov, track);
2687  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2688  ret = mov_write_audio_tag(s, pb, mov, track);
2689  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2690  ret = mov_write_subtitle_tag(s, pb, track);
2691  else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2692  ret = mov_write_rtp_tag(pb, track);
2693  else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2694  ret = mov_write_tmcd_tag(pb, track);
2695  else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2696  ret = mov_write_gpmd_tag(pb, track);
2697 
2698  if (ret < 0)
2699  return ret;
2700 
2701  return update_size(pb, pos);
2702 }
2703 
2705 {
2706  MOVMuxContext *mov = s->priv_data;
2707  MOVCtts *ctts_entries;
2708  uint32_t entries = 0;
2709  uint32_t atom_size;
2710  int i;
2711 
2712  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2713  if (!ctts_entries)
2714  return AVERROR(ENOMEM);
2715  ctts_entries[0].count = 1;
2716  ctts_entries[0].duration = track->cluster[0].cts;
2717  for (i = 1; i < track->entry; i++) {
2718  if (track->cluster[i].cts == ctts_entries[entries].duration) {
2719  ctts_entries[entries].count++; /* compress */
2720  } else {
2721  entries++;
2722  ctts_entries[entries].duration = track->cluster[i].cts;
2723  ctts_entries[entries].count = 1;
2724  }
2725  }
2726  entries++; /* last one */
2727  atom_size = 16 + (entries * 8);
2728  avio_wb32(pb, atom_size); /* size */
2729  ffio_wfourcc(pb, "ctts");
2731  avio_w8(pb, 1); /* version */
2732  else
2733  avio_w8(pb, 0); /* version */
2734  avio_wb24(pb, 0); /* flags */
2735  avio_wb32(pb, entries); /* entry count */
2736  for (i = 0; i < entries; i++) {
2737  avio_wb32(pb, ctts_entries[i].count);
2738  avio_wb32(pb, ctts_entries[i].duration);
2739  }
2740  av_free(ctts_entries);
2741  return atom_size;
2742 }
2743 
2744 /* Time to sample atom */
2745 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2746 {
2747  MOVStts *stts_entries = NULL;
2748  uint32_t entries = -1;
2749  uint32_t atom_size;
2750  int i;
2751 
2752  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2753  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2754  if (!stts_entries)
2755  return AVERROR(ENOMEM);
2756  stts_entries[0].count = track->sample_count;
2757  stts_entries[0].duration = 1;
2758  entries = 1;
2759  } else {
2760  if (track->entry) {
2761  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2762  if (!stts_entries)
2763  return AVERROR(ENOMEM);
2764  }
2765  for (i = 0; i < track->entry; i++) {
2766  int duration = get_cluster_duration(track, i);
2767  if (i && duration == stts_entries[entries].duration) {
2768  stts_entries[entries].count++; /* compress */
2769  } else {
2770  entries++;
2771  stts_entries[entries].duration = duration;
2772  stts_entries[entries].count = 1;
2773  }
2774  }
2775  entries++; /* last one */
2776  }
2777  atom_size = 16 + (entries * 8);
2778  avio_wb32(pb, atom_size); /* size */
2779  ffio_wfourcc(pb, "stts");
2780  avio_wb32(pb, 0); /* version & flags */
2781  avio_wb32(pb, entries); /* entry count */
2782  for (i = 0; i < entries; i++) {
2783  avio_wb32(pb, stts_entries[i].count);
2784  avio_wb32(pb, stts_entries[i].duration);
2785  }
2786  av_free(stts_entries);
2787  return atom_size;
2788 }
2789 
2791 {
2792  avio_wb32(pb, 28); /* size */
2793  ffio_wfourcc(pb, "dref");
2794  avio_wb32(pb, 0); /* version & flags */
2795  avio_wb32(pb, 1); /* entry count */
2796 
2797  avio_wb32(pb, 0xc); /* size */
2798  //FIXME add the alis and rsrc atom
2799  ffio_wfourcc(pb, "url ");
2800  avio_wb32(pb, 1); /* version & flags */
2801 
2802  return 28;
2803 }
2804 
2806 {
2807  struct sgpd_entry {
2808  int count;
2809  int16_t roll_distance;
2810  int group_description_index;
2811  };
2812 
2813  struct sgpd_entry *sgpd_entries = NULL;
2814  int entries = -1;
2815  int group = 0;
2816  int i, j;
2817 
2818  const int OPUS_SEEK_PREROLL_MS = 80;
2819  int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2820  (AVRational){1, 1000},
2821  (AVRational){1, 48000});
2822 
2823  if (!track->entry)
2824  return 0;
2825 
2826  sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2827  if (!sgpd_entries)
2828  return AVERROR(ENOMEM);
2829 
2831 
2832  if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2833  for (i = 0; i < track->entry; i++) {
2834  int roll_samples_remaining = roll_samples;
2835  int distance = 0;
2836  for (j = i - 1; j >= 0; j--) {
2837  roll_samples_remaining -= get_cluster_duration(track, j);
2838  distance++;
2839  if (roll_samples_remaining <= 0)
2840  break;
2841  }
2842  /* We don't have enough preceeding samples to compute a valid
2843  roll_distance here, so this sample can't be independently
2844  decoded. */
2845  if (roll_samples_remaining > 0)
2846  distance = 0;
2847  /* Verify distance is a maximum of 32 (2.5ms) packets. */
2848  if (distance > 32)
2849  return AVERROR_INVALIDDATA;
2850  if (i && distance == sgpd_entries[entries].roll_distance) {
2851  sgpd_entries[entries].count++;
2852  } else {
2853  entries++;
2854  sgpd_entries[entries].count = 1;
2855  sgpd_entries[entries].roll_distance = distance;
2856  sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2857  }
2858  }
2859  } else {
2860  entries++;
2861  sgpd_entries[entries].count = track->sample_count;
2862  sgpd_entries[entries].roll_distance = 1;
2863  sgpd_entries[entries].group_description_index = ++group;
2864  }
2865  entries++;
2866 
2867  if (!group) {
2868  av_free(sgpd_entries);
2869  return 0;
2870  }
2871 
2872  /* Write sgpd tag */
2873  avio_wb32(pb, 24 + (group * 2)); /* size */
2874  ffio_wfourcc(pb, "sgpd");
2875  avio_wb32(pb, 1 << 24); /* fullbox */
2876  ffio_wfourcc(pb, "roll");
2877  avio_wb32(pb, 2); /* default_length */
2878  avio_wb32(pb, group); /* entry_count */
2879  for (i = 0; i < entries; i++) {
2880  if (sgpd_entries[i].group_description_index) {
2881  avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2882  }
2883  }
2884 
2885  /* Write sbgp tag */
2886  avio_wb32(pb, 20 + (entries * 8)); /* size */
2887  ffio_wfourcc(pb, "sbgp");
2888  avio_wb32(pb, 0); /* fullbox */
2889  ffio_wfourcc(pb, "roll");
2890  avio_wb32(pb, entries); /* entry_count */
2891  for (i = 0; i < entries; i++) {
2892  avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2893  avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2894  }
2895 
2896  av_free(sgpd_entries);
2897  return 0;
2898 }
2899 
2901 {
2902  int64_t pos = avio_tell(pb);
2903  int ret = 0;
2904 
2905  avio_wb32(pb, 0); /* size */
2906  ffio_wfourcc(pb, "stbl");
2907  if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2908  return ret;
2909  mov_write_stts_tag(pb, track);
2910  if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2911  track->par->codec_id == AV_CODEC_ID_TRUEHD ||
2913  track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2914  track->has_keyframes && track->has_keyframes < track->entry)
2915  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2916  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2917  mov_write_sdtp_tag(pb, track);
2918  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2920  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2921  track->flags & MOV_TRACK_CTTS && track->entry) {
2922 
2923  if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2924  return ret;
2925  }
2926  mov_write_stsc_tag(pb, track);
2927  mov_write_stsz_tag(pb, track);
2928  mov_write_stco_tag(pb, track);
2929  if (track->cenc.aes_ctr) {
2930  ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2931  }
2932  if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2933  mov_preroll_write_stbl_atoms(pb, track);
2934  }
2935  return update_size(pb, pos);
2936 }
2937 
2939 {
2940  int64_t pos = avio_tell(pb);
2941  avio_wb32(pb, 0); /* size */
2942  ffio_wfourcc(pb, "dinf");
2943  mov_write_dref_tag(pb);
2944  return update_size(pb, pos);
2945 }
2946 
2948 {
2949  avio_wb32(pb, 12);
2950  ffio_wfourcc(pb, "nmhd");
2951  avio_wb32(pb, 0);
2952  return 12;
2953 }
2954 
2956 {
2957  avio_wb32(pb, 12);
2958  ffio_wfourcc(pb, "sthd");
2959  avio_wb32(pb, 0);
2960  return 12;
2961 }
2962 
2963 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2964 {
2965  int64_t pos = avio_tell(pb);
2966  const char *font = "Lucida Grande";
2967  avio_wb32(pb, 0); /* size */
2968  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2969  avio_wb32(pb, 0); /* version & flags */
2970  avio_wb16(pb, 0); /* text font */
2971  avio_wb16(pb, 0); /* text face */
2972  avio_wb16(pb, 12); /* text size */
2973  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2974  avio_wb16(pb, 0x0000); /* text color (red) */
2975  avio_wb16(pb, 0x0000); /* text color (green) */
2976  avio_wb16(pb, 0x0000); /* text color (blue) */
2977  avio_wb16(pb, 0xffff); /* background color (red) */
2978  avio_wb16(pb, 0xffff); /* background color (green) */
2979  avio_wb16(pb, 0xffff); /* background color (blue) */
2980  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2981  avio_write(pb, font, strlen(font)); /* font name */
2982  return update_size(pb, pos);
2983 }
2984 
2985 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2986 {
2987  int64_t pos = avio_tell(pb);
2988  avio_wb32(pb, 0); /* size */
2989  ffio_wfourcc(pb, "gmhd");
2990  avio_wb32(pb, 0x18); /* gmin size */
2991  ffio_wfourcc(pb, "gmin");/* generic media info */
2992  avio_wb32(pb, 0); /* version & flags */
2993  avio_wb16(pb, 0x40); /* graphics mode = */
2994  avio_wb16(pb, 0x8000); /* opColor (r?) */
2995  avio_wb16(pb, 0x8000); /* opColor (g?) */
2996  avio_wb16(pb, 0x8000); /* opColor (b?) */
2997  avio_wb16(pb, 0); /* balance */
2998  avio_wb16(pb, 0); /* reserved */
2999 
3000  /*
3001  * This special text atom is required for
3002  * Apple Quicktime chapters. The contents
3003  * don't appear to be documented, so the
3004  * bytes are copied verbatim.
3005  */
3006  if (track->tag != MKTAG('c','6','0','8')) {
3007  avio_wb32(pb, 0x2C); /* size */
3008  ffio_wfourcc(pb, "text");
3009  avio_wb16(pb, 0x01);
3010  avio_wb32(pb, 0x00);
3011  avio_wb32(pb, 0x00);
3012  avio_wb32(pb, 0x00);
3013  avio_wb32(pb, 0x01);
3014  avio_wb32(pb, 0x00);
3015  avio_wb32(pb, 0x00);
3016  avio_wb32(pb, 0x00);
3017  avio_wb32(pb, 0x00004000);
3018  avio_wb16(pb, 0x0000);
3019  }
3020 
3021  if (track->par->codec_tag == MKTAG('t','m','c','d')) {
3022  int64_t tmcd_pos = avio_tell(pb);
3023  avio_wb32(pb, 0); /* size */
3024  ffio_wfourcc(pb, "tmcd");
3025  mov_write_tcmi_tag(pb, track);
3026  update_size(pb, tmcd_pos);
3027  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
3028  int64_t gpmd_pos = avio_tell(pb);
3029  avio_wb32(pb, 0); /* size */
3030  ffio_wfourcc(pb, "gpmd");
3031  avio_wb32(pb, 0); /* version */
3032  update_size(pb, gpmd_pos);
3033  }
3034  return update_size(pb, pos);
3035 }
3036 
3038 {
3039  avio_wb32(pb, 16); /* size */
3040  ffio_wfourcc(pb, "smhd");
3041  avio_wb32(pb, 0); /* version & flags */
3042  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
3043  avio_wb16(pb, 0); /* reserved */
3044  return 16;
3045 }
3046 
3048 {
3049  avio_wb32(pb, 0x14); /* size (always 0x14) */
3050  ffio_wfourcc(pb, "vmhd");
3051  avio_wb32(pb, 0x01); /* version & flags */
3052  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
3053  return 0x14;
3054 }
3055 
3056 static int is_clcp_track(MOVTrack *track)
3057 {
3058  return track->tag == MKTAG('c','7','0','8') ||
3059  track->tag == MKTAG('c','6','0','8');
3060 }
3061 
3063 {
3064  MOVMuxContext *mov = s->priv_data;
3065  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
3066  int64_t pos = avio_tell(pb);
3067  size_t descr_len;
3068 
3069  hdlr = "dhlr";
3070  hdlr_type = "url ";
3071  descr = "DataHandler";
3072 
3073  if (track) {
3074  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
3075  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3076  if (track->mode == MODE_AVIF) {
3077  hdlr_type = (track == &mov->tracks[0]) ? "pict" : "auxv";
3078  descr = "PictureHandler";
3079  } else {
3080  hdlr_type = "vide";
3081  descr = "VideoHandler";
3082  }
3083  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3084  hdlr_type = "soun";
3085  descr = "SoundHandler";
3086  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3087  if (is_clcp_track(track)) {
3088  hdlr_type = "clcp";
3089  descr = "ClosedCaptionHandler";
3090  } else {
3091  if (track->tag == MKTAG('t','x','3','g')) {
3092  hdlr_type = "sbtl";
3093  } else if (track->tag == MKTAG('m','p','4','s')) {
3094  hdlr_type = "subp";
3095  } else if (track->tag == MOV_MP4_TTML_TAG) {
3096  hdlr_type = "subt";
3097  } else {
3098  hdlr_type = "text";
3099  }
3100  descr = "SubtitleHandler";
3101  }
3102  } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
3103  hdlr_type = "hint";
3104  descr = "HintHandler";
3105  } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
3106  hdlr_type = "tmcd";
3107  descr = "TimeCodeHandler";
3108  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
3109  hdlr_type = "meta";
3110  descr = "GoPro MET"; // GoPro Metadata
3111  } else {
3113  "Unknown hdlr_type for %s, writing dummy values\n",
3114  av_fourcc2str(track->par->codec_tag));
3115  }
3116  if (track->st) {
3117  // hdlr.name is used by some players to identify the content title
3118  // of the track. So if an alternate handler description is
3119  // specified, use it.
3120  AVDictionaryEntry *t;
3121  t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
3122  if (t && utf8len(t->value))
3123  descr = t->value;
3124  }
3125  }
3126 
3127  if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
3128  descr = "";
3129 
3130  avio_wb32(pb, 0); /* size */
3131  ffio_wfourcc(pb, "hdlr");
3132  avio_wb32(pb, 0); /* Version & flags */
3133  avio_write(pb, hdlr, 4); /* handler */
3134  ffio_wfourcc(pb, hdlr_type); /* handler type */
3135  avio_wb32(pb, 0); /* reserved */
3136  avio_wb32(pb, 0); /* reserved */
3137  avio_wb32(pb, 0); /* reserved */
3138  descr_len = strlen(descr);
3139  if (!track || track->mode == MODE_MOV)
3140  avio_w8(pb, descr_len); /* pascal string */
3141  avio_write(pb, descr, descr_len); /* handler description */
3142  if (track && track->mode != MODE_MOV)
3143  avio_w8(pb, 0); /* c string */
3144  return update_size(pb, pos);
3145 }
3146 
3147 static int mov_write_pitm_tag(AVIOContext *pb, int item_id)
3148 {
3149  int64_t pos = avio_tell(pb);
3150  avio_wb32(pb, 0); /* size */
3151  ffio_wfourcc(pb, "pitm");
3152  avio_wb32(pb, 0); /* Version & flags */
3153  avio_wb16(pb, item_id); /* item_id */
3154  return update_size(pb, pos);
3155 }
3156 
3158 {
3159  int64_t pos = avio_tell(pb);
3160  avio_wb32(pb, 0); /* size */
3161  ffio_wfourcc(pb, "iloc");
3162  avio_wb32(pb, 0); /* Version & flags */
3163  avio_w8(pb, (4 << 4) + 4); /* offset_size(4) and length_size(4) */
3164  avio_w8(pb, 0); /* base_offset_size(4) and reserved(4) */
3165  avio_wb16(pb, mov->nb_streams); /* item_count */
3166 
3167  for (int i = 0; i < mov->nb_streams; i++) {
3168  avio_wb16(pb, i + 1); /* item_id */
3169  avio_wb16(pb, 0); /* data_reference_index */
3170  avio_wb16(pb, 1); /* extent_count */
3171  mov->avif_extent_pos[i] = avio_tell(pb);
3172  avio_wb32(pb, 0); /* extent_offset (written later) */
3173  // For animated AVIF, we simply write the first packet's size.
3174  avio_wb32(pb, mov->avif_extent_length[i]); /* extent_length */
3175  }
3176 
3177  return update_size(pb, pos);
3178 }
3179 
3181 {
3182  int64_t iinf_pos = avio_tell(pb);
3183  avio_wb32(pb, 0); /* size */
3184  ffio_wfourcc(pb, "iinf");
3185  avio_wb32(pb, 0); /* Version & flags */
3186  avio_wb16(pb, mov->nb_streams); /* entry_count */
3187 
3188  for (int i = 0; i < mov->nb_streams; i++) {
3189  int64_t infe_pos = avio_tell(pb);
3190  avio_wb32(pb, 0); /* size */
3191  ffio_wfourcc(pb, "infe");
3192  avio_w8(pb, 0x2); /* Version */
3193  avio_wb24(pb, 0); /* flags */
3194  avio_wb16(pb, i + 1); /* item_id */
3195  avio_wb16(pb, 0); /* item_protection_index */
3196  avio_write(pb, "av01", 4); /* item_type */
3197  avio_write(pb, !i ? "Color\0" : "Alpha\0", 6); /* item_name */
3198  update_size(pb, infe_pos);
3199  }
3200 
3201  return update_size(pb, iinf_pos);
3202 }
3203 
3204 
3206 {
3207  int64_t auxl_pos;
3208  int64_t iref_pos = avio_tell(pb);
3209  avio_wb32(pb, 0); /* size */
3210  ffio_wfourcc(pb, "iref");
3211  avio_wb32(pb, 0); /* Version & flags */
3212 
3213  auxl_pos = avio_tell(pb);
3214  avio_wb32(pb, 0); /* size */
3215  ffio_wfourcc(pb, "auxl");
3216  avio_wb16(pb, 2); /* from_item_ID */
3217  avio_wb16(pb, 1); /* reference_count */
3218  avio_wb16(pb, 1); /* to_item_ID */
3219  update_size(pb, auxl_pos);
3220 
3221  return update_size(pb, iref_pos);
3222 }
3223 
3225  int stream_index)
3226 {
3227  int64_t pos = avio_tell(pb);
3228  avio_wb32(pb, 0); /* size */
3229  ffio_wfourcc(pb, "ispe");
3230  avio_wb32(pb, 0); /* Version & flags */
3231  avio_wb32(pb, s->streams[stream_index]->codecpar->width); /* image_width */
3232  avio_wb32(pb, s->streams[stream_index]->codecpar->height); /* image_height */
3233  return update_size(pb, pos);
3234 }
3235 
3237  int stream_index)
3238 {
3239  int64_t pos = avio_tell(pb);
3240  const AVPixFmtDescriptor *pixdesc =
3241  av_pix_fmt_desc_get(s->streams[stream_index]->codecpar->format);
3242  avio_wb32(pb, 0); /* size */
3243  ffio_wfourcc(pb, "pixi");
3244  avio_wb32(pb, 0); /* Version & flags */
3245  avio_w8(pb, pixdesc->nb_components); /* num_channels */
3246  for (int i = 0; i < pixdesc->nb_components; ++i) {
3247  avio_w8(pb, pixdesc->comp[i].depth); /* bits_per_channel */
3248  }
3249  return update_size(pb, pos);
3250 }
3251 
3253 {
3254  int64_t pos = avio_tell(pb);
3255  avio_wb32(pb, 0); /* size */
3256  ffio_wfourcc(pb, "ipco");
3257  for (int i = 0; i < mov->nb_streams; i++) {
3258  mov_write_ispe_tag(pb, mov, s, i);
3259  mov_write_pixi_tag(pb, mov, s, i);
3260  mov_write_av1c_tag(pb, &mov->tracks[i]);
3261  if (!i)
3262  mov_write_colr_tag(pb, &mov->tracks[0], 0);
3263  else
3264  mov_write_aux_tag(pb, "auxC");
3265  }
3266  return update_size(pb, pos);
3267 }
3268 
3270 {
3271  int64_t pos = avio_tell(pb);
3272  avio_wb32(pb, 0); /* size */
3273  ffio_wfourcc(pb, "ipma");
3274  avio_wb32(pb, 0); /* Version & flags */
3275  avio_wb32(pb, mov->nb_streams); /* entry_count */
3276 
3277  for (int i = 0, index = 1; i < mov->nb_streams; i++) {
3278  avio_wb16(pb, i + 1); /* item_ID */
3279  avio_w8(pb, 4); /* association_count */
3280 
3281  // ispe association.
3282  avio_w8(pb, index++); /* essential and property_index */
3283  // pixi association.
3284  avio_w8(pb, index++); /* essential and property_index */
3285  // av1C association.
3286  avio_w8(pb, 0x80 | index++); /* essential and property_index */
3287  // colr/auxC association.
3288  avio_w8(pb, index++); /* essential and property_index */
3289  }
3290  return update_size(pb, pos);
3291 }
3292 
3294 {
3295  int64_t pos = avio_tell(pb);
3296  avio_wb32(pb, 0); /* size */
3297  ffio_wfourcc(pb, "iprp");
3298  mov_write_ipco_tag(pb, mov, s);
3299  mov_write_ipma_tag(pb, mov, s);
3300  return update_size(pb, pos);
3301 }
3302 
3304 {
3305  /* This atom must be present, but leaving the values at zero
3306  * seems harmless. */
3307  avio_wb32(pb, 28); /* size */
3308  ffio_wfourcc(pb, "hmhd");
3309  avio_wb32(pb, 0); /* version, flags */
3310  avio_wb16(pb, 0); /* maxPDUsize */
3311  avio_wb16(pb, 0); /* avgPDUsize */
3312  avio_wb32(pb, 0); /* maxbitrate */
3313  avio_wb32(pb, 0); /* avgbitrate */
3314  avio_wb32(pb, 0); /* reserved */
3315  return 28;
3316 }
3317 
3319 {
3320  int64_t pos = avio_tell(pb);
3321  int ret;
3322 
3323  avio_wb32(pb, 0); /* size */
3324  ffio_wfourcc(pb, "minf");
3325  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
3326  mov_write_vmhd_tag(pb);
3327  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
3328  mov_write_smhd_tag(pb);
3329  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3330  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
3331  mov_write_gmhd_tag(pb, track);
3332  } else if (track->tag == MOV_MP4_TTML_TAG) {
3333  mov_write_sthd_tag(pb);
3334  } else {
3335  mov_write_nmhd_tag(pb);
3336  }
3337  } else if (track->tag == MKTAG('r','t','p',' ')) {
3338  mov_write_hmhd_tag(pb);
3339  } else if (track->tag == MKTAG('t','m','c','d')) {
3340  if (track->mode != MODE_MOV)
3341  mov_write_nmhd_tag(pb);
3342  else
3343  mov_write_gmhd_tag(pb, track);
3344  } else if (track->tag == MKTAG('g','p','m','d')) {
3345  mov_write_gmhd_tag(pb, track);
3346  }
3347  if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
3348  mov_write_hdlr_tag(s, pb, NULL);
3349  mov_write_dinf_tag(pb);
3350  if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
3351  return ret;
3352  return update_size(pb, pos);
3353 }
3354 
3355 static void get_pts_range(MOVMuxContext *mov, MOVTrack *track,
3356  int64_t *start, int64_t *end)
3357 {
3358  if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) {
3359  // tmcd tracks gets track_duration set in mov_write_moov_tag from
3360  // another track's duration, while the end_pts may be left at zero.
3361  // Calculate the pts duration for that track instead.
3362  get_pts_range(mov, &mov->tracks[track->src_track], start, end);
3363  *start = av_rescale(*start, track->timescale,
3364  mov->tracks[track->src_track].timescale);
3365  *end = av_rescale(*end, track->timescale,
3366  mov->tracks[track->src_track].timescale);
3367  return;
3368  }
3369  if (track->end_pts != AV_NOPTS_VALUE &&
3370  track->start_dts != AV_NOPTS_VALUE &&
3371  track->start_cts != AV_NOPTS_VALUE) {
3372  *start = track->start_dts + track->start_cts;
3373  *end = track->end_pts;
3374  return;
3375  }
3376  *start = 0;
3377  *end = track->track_duration;
3378 }
3379 
3381 {
3382  int64_t start, end;
3383  get_pts_range(mov, track, &start, &end);
3384  return end - start;
3385 }
3386 
3387 // Calculate the actual duration of the track, after edits.
3388 // If it starts with a pts < 0, that is removed by the edit list.
3389 // If it starts with a pts > 0, the edit list adds a delay before that.
3390 // Thus, with edit lists enabled, the post-edit output of the file is
3391 // starting with pts=0.
3392 static int64_t calc_pts_duration(MOVMuxContext *mov, MOVTrack *track)
3393 {
3394  int64_t start, end;
3395  get_pts_range(mov, track, &start, &end);
3396  if (mov->use_editlist != 0)
3397  start = 0;
3398  return end - start;
3399 }
3400 
3402 {
3403  if (track && track->mode == MODE_ISM)
3404  return 1;
3405  if (duration < INT32_MAX)
3406  return 0;
3407  return 1;
3408 }
3409 
3411  MOVTrack *track)
3412 {
3413  int64_t duration = calc_samples_pts_duration(mov, track);
3414  int version = mov_mdhd_mvhd_tkhd_version(mov, track, duration);
3415 
3416  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
3417  ffio_wfourcc(pb, "mdhd");
3418  avio_w8(pb, version);
3419  avio_wb24(pb, 0); /* flags */
3420  if (version == 1) {
3421  avio_wb64(pb, track->time);
3422  avio_wb64(pb, track->time);
3423  } else {
3424  avio_wb32(pb, track->time); /* creation time */
3425  avio_wb32(pb, track->time); /* modification time */
3426  }
3427  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
3428  if (!track->entry && mov->mode == MODE_ISM)
3429  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
3430  else if (!track->entry)
3431  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
3432  else
3433  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); /* duration */
3434  avio_wb16(pb, track->language); /* language */
3435  avio_wb16(pb, 0); /* reserved (quality) */
3436 
3437  if (version != 0 && track->mode == MODE_MOV) {
3439  "FATAL error, file duration too long for timebase, this file will not be\n"
3440  "playable with QuickTime. Choose a different timebase with "
3441  "-video_track_timescale or a different container format\n");
3442  }
3443 
3444  return 32;
3445 }
3446 
3448  MOVMuxContext *mov, MOVTrack *track)
3449 {
3450  int64_t pos = avio_tell(pb);
3451  int ret;
3452 
3453  avio_wb32(pb, 0); /* size */
3454  ffio_wfourcc(pb, "mdia");
3455  mov_write_mdhd_tag(pb, mov, track);
3456  mov_write_hdlr_tag(s, pb, track);
3457  if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
3458  return ret;
3459  return update_size(pb, pos);
3460 }
3461 
3462 /* transformation matrix
3463  |a b u|
3464  |c d v|
3465  |tx ty w| */
3466 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
3467  int16_t d, int16_t tx, int16_t ty)
3468 {
3469  avio_wb32(pb, a << 16); /* 16.16 format */
3470  avio_wb32(pb, b << 16); /* 16.16 format */
3471  avio_wb32(pb, 0); /* u in 2.30 format */
3472  avio_wb32(pb, c << 16); /* 16.16 format */
3473  avio_wb32(pb, d << 16); /* 16.16 format */
3474  avio_wb32(pb, 0); /* v in 2.30 format */
3475  avio_wb32(pb, tx << 16); /* 16.16 format */
3476  avio_wb32(pb, ty << 16); /* 16.16 format */
3477  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
3478 }
3479 
3481  MOVTrack *track, AVStream *st)
3482 {
3483  int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
3484  mov->movie_timescale, track->timescale,
3485  AV_ROUND_UP);
3486  int version;
3488  int group = 0;
3489 
3490  uint32_t *display_matrix = NULL;
3491  int i;
3492 
3493  if (mov->mode == MODE_AVIF)
3494  if (!mov->avif_loop_count)
3495  duration = INT64_MAX;
3496  else
3497  duration *= mov->avif_loop_count;
3498 
3499  if (st) {
3500  const AVPacketSideData *sd;
3501  if (mov->per_stream_grouping)
3502  group = st->index;
3503  else
3504  group = st->codecpar->codec_type;
3505 
3509  if (sd && sd->size == 9 * sizeof(*display_matrix))
3510  display_matrix = (uint32_t *)sd->data;
3511  }
3512 
3513  if (track->flags & MOV_TRACK_ENABLED)
3515 
3517 
3518  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
3519  ffio_wfourcc(pb, "tkhd");
3520  avio_w8(pb, version);
3521  avio_wb24(pb, flags);
3522  if (version == 1) {
3523  avio_wb64(pb, track->time);
3524  avio_wb64(pb, track->time);
3525  } else {
3526  avio_wb32(pb, track->time); /* creation time */
3527  avio_wb32(pb, track->time); /* modification time */
3528  }
3529  avio_wb32(pb, track->track_id); /* track-id */
3530  avio_wb32(pb, 0); /* reserved */
3531  if (!track->entry && mov->mode == MODE_ISM)
3532  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
3533  else if (!track->entry)
3534  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
3535  else
3536  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
3537 
3538  avio_wb32(pb, 0); /* reserved */
3539  avio_wb32(pb, 0); /* reserved */
3540  avio_wb16(pb, 0); /* layer */
3541  avio_wb16(pb, group); /* alternate group) */
3542  /* Volume, only for audio */
3543  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
3544  avio_wb16(pb, 0x0100);
3545  else
3546  avio_wb16(pb, 0);
3547  avio_wb16(pb, 0); /* reserved */
3548 
3549  /* Matrix structure */
3550  if (display_matrix) {
3551  for (i = 0; i < 9; i++)
3552  avio_wb32(pb, display_matrix[i]);
3553  } else {
3554  write_matrix(pb, 1, 0, 0, 1, 0, 0);
3555  }
3556  /* Track width and height, for visual only */
3557  if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
3558  track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
3559  int64_t track_width_1616;
3560  if (track->mode == MODE_MOV || track->mode == MODE_AVIF) {
3561  track_width_1616 = track->par->width * 0x10000ULL;
3562  } else {
3563  track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
3564  track->par->width * 0x10000LL,
3565  st->sample_aspect_ratio.den);
3566  if (!track_width_1616 ||
3567  track->height != track->par->height ||
3568  track_width_1616 > UINT32_MAX)
3569  track_width_1616 = track->par->width * 0x10000ULL;
3570  }
3571  if (track_width_1616 > UINT32_MAX) {
3572  av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
3573  track_width_1616 = 0;
3574  }
3575  avio_wb32(pb, track_width_1616);
3576  if (track->height > 0xFFFF) {
3577  av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
3578  avio_wb32(pb, 0);
3579  } else
3580  avio_wb32(pb, track->height * 0x10000U);
3581  } else {
3582  avio_wb32(pb, 0);
3583  avio_wb32(pb, 0);
3584  }
3585  return 0x5c;
3586 }
3587 
3588 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
3589 {
3591  track->par->sample_aspect_ratio.den);
3592 
3593  int64_t pos = avio_tell(pb);
3594 
3595  avio_wb32(pb, 0); /* size */
3596  ffio_wfourcc(pb, "tapt");
3597 
3598  avio_wb32(pb, 20);
3599  ffio_wfourcc(pb, "clef");
3600  avio_wb32(pb, 0);
3601  avio_wb32(pb, width << 16);
3602  avio_wb32(pb, track->par->height << 16);
3603 
3604  avio_wb32(pb, 20);
3605  ffio_wfourcc(pb, "prof");
3606  avio_wb32(pb, 0);
3607  avio_wb32(pb, width << 16);
3608  avio_wb32(pb, track->par->height << 16);
3609 
3610  avio_wb32(pb, 20);
3611  ffio_wfourcc(pb, "enof");
3612  avio_wb32(pb, 0);
3613  avio_wb32(pb, track->par->width << 16);
3614  avio_wb32(pb, track->par->height << 16);
3615 
3616  return update_size(pb, pos);
3617 }
3618 
3619 // This box is written in the following cases:
3620 // * Seems important for the psp playback. Without it the movie seems to hang.
3621 // * Used for specifying the looping behavior of animated AVIF (as specified
3622 // in Section 9.6 of the HEIF specification ISO/IEC 23008-12).
3624  MOVTrack *track)
3625 {
3626  int64_t duration = av_rescale_rnd(calc_samples_pts_duration(mov, track),
3627  mov->movie_timescale, track->timescale,
3628  AV_ROUND_UP);
3629  int version = duration < INT32_MAX ? 0 : 1;
3630  int entry_size, entry_count, size;
3631  int64_t delay, start_ct = track->start_cts;
3632  int64_t start_dts = track->start_dts;
3633  int flags = 0;
3634 
3635  if (track->entry) {
3636  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
3637 
3638  av_log(mov->fc, AV_LOG_DEBUG,
3639  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
3640  track->cluster[0].dts, track->cluster[0].cts,
3641  start_dts, start_ct, track->track_id);
3642  start_dts = track->cluster[0].dts;
3643  start_ct = track->cluster[0].cts;
3644  }
3645  }
3646 
3647  delay = av_rescale_rnd(start_dts + start_ct, mov->movie_timescale,
3648  track->timescale, AV_ROUND_DOWN);
3649 
3650  if (mov->mode == MODE_AVIF) {
3651  delay = 0;
3652  // Section 9.6.3 of ISO/IEC 23008-12: flags specifies repetition of the
3653  // edit list as follows: (flags & 1) equal to 0 specifies that the edit
3654  // list is not repeated, while (flags & 1) equal to 1 specifies that the
3655  // edit list is repeated.
3656  flags = mov->avif_loop_count != 1;
3657  start_ct = 0;
3658  }
3659 
3660  version |= delay < INT32_MAX ? 0 : 1;
3661 
3662  entry_size = (version == 1) ? 20 : 12;
3663  entry_count = 1 + (delay > 0);
3664  size = 24 + entry_count * entry_size;
3665 
3666  /* write the atom data */
3667  avio_wb32(pb, size);
3668  ffio_wfourcc(pb, "edts");
3669  avio_wb32(pb, size - 8);
3670  ffio_wfourcc(pb, "elst");
3671  avio_w8(pb, version);
3672  avio_wb24(pb, flags); /* flags */
3673 
3674  avio_wb32(pb, entry_count);
3675  if (delay > 0) { /* add an empty edit to delay presentation */
3676  /* In the positive delay case, the delay includes the cts
3677  * offset, and the second edit list entry below trims out
3678  * the same amount from the actual content. This makes sure
3679  * that the offset last sample is included in the edit
3680  * list duration as well. */
3681  if (version == 1) {
3682  avio_wb64(pb, delay);
3683  avio_wb64(pb, -1);
3684  } else {
3685  avio_wb32(pb, delay);
3686  avio_wb32(pb, -1);
3687  }
3688  avio_wb32(pb, 0x00010000);
3689  } else if (mov->mode != MODE_AVIF) {
3690  /* Avoid accidentally ending up with start_ct = -1 which has got a
3691  * special meaning. Normally start_ct should end up positive or zero
3692  * here, but use FFMIN in case dts is a small positive integer
3693  * rounded to 0 when represented in movie timescale units. */
3694  av_assert0(av_rescale_rnd(start_dts, mov->movie_timescale, track->timescale, AV_ROUND_DOWN) <= 0);
3695  start_ct = -FFMIN(start_dts, 0);
3696  /* Note, this delay is calculated from the pts of the first sample,
3697  * ensuring that we don't reduce the duration for cases with
3698  * dts<0 pts=0. */
3699  duration += delay;
3700  }
3701 
3702  /* For fragmented files, we don't know the full length yet. Setting
3703  * duration to 0 allows us to only specify the offset, including
3704  * the rest of the content (from all future fragments) without specifying
3705  * an explicit duration. */
3706  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3707  duration = 0;
3708 
3709  /* duration */
3710  if (version == 1) {
3711  avio_wb64(pb, duration);
3712  avio_wb64(pb, start_ct);
3713  } else {
3714  avio_wb32(pb, duration);
3715  avio_wb32(pb, start_ct);
3716  }
3717  avio_wb32(pb, 0x00010000);
3718  return size;
3719 }
3720 
3721 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3722 {
3723  avio_wb32(pb, 20); // size
3724  ffio_wfourcc(pb, "tref");
3725  avio_wb32(pb, 12); // size (subatom)
3726  avio_wl32(pb, track->tref_tag);
3727  avio_wb32(pb, track->tref_id);
3728  return 20;
3729 }
3730 
3731 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3733 {
3734  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3735  ffio_wfourcc(pb, "uuid");
3736  ffio_wfourcc(pb, "USMT");
3737  avio_wb32(pb, 0x21d24fce);
3738  avio_wb32(pb, 0xbb88695c);
3739  avio_wb32(pb, 0xfac9c740);
3740  avio_wb32(pb, 0x1c); // another size here!
3741  ffio_wfourcc(pb, "MTDT");
3742  avio_wb32(pb, 0x00010012);
3743  avio_wb32(pb, 0x0a);
3744  avio_wb32(pb, 0x55c40000);
3745  avio_wb32(pb, 0x1);
3746  avio_wb32(pb, 0x0);
3747  return 0x34;
3748 }
3749 
3750 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3751 {
3752  AVFormatContext *ctx = track->rtp_ctx;
3753  char buf[1000] = "";
3754  int len;
3755 
3756  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3757  NULL, NULL, 0, 0, ctx);
3758  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3759  len = strlen(buf);
3760 
3761  avio_wb32(pb, len + 24);
3762  ffio_wfourcc(pb, "udta");
3763  avio_wb32(pb, len + 16);
3764  ffio_wfourcc(pb, "hnti");
3765  avio_wb32(pb, len + 8);
3766  ffio_wfourcc(pb, "sdp ");
3767  avio_write(pb, buf, len);
3768  return len + 24;
3769 }
3770 
3772  const char *tag, const char *str)
3773 {
3774  int64_t pos = avio_tell(pb);
3775  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3776  if (!t || !utf8len(t->value))
3777  return 0;
3778 
3779  avio_wb32(pb, 0); /* size */
3780  ffio_wfourcc(pb, tag); /* type */
3781  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3782  return update_size(pb, pos);
3783 }
3784 
3785 static int mov_write_track_kind(AVIOContext *pb, const char *scheme_uri,
3786  const char *value)
3787 {
3788  int64_t pos = avio_tell(pb);
3789 
3790  /* Box|FullBox basics */
3791  avio_wb32(pb, 0); /* size placeholder */
3792  ffio_wfourcc(pb, (const unsigned char *)"kind");
3793  avio_w8(pb, 0); /* version = 0 */
3794  avio_wb24(pb, 0); /* flags = 0 */
3795 
3796  /* Required null-terminated scheme URI */
3797  avio_write(pb, (const unsigned char *)scheme_uri,
3798  strlen(scheme_uri));
3799  avio_w8(pb, 0);
3800 
3801  /* Optional value string */
3802  if (value && value[0])
3803  avio_write(pb, (const unsigned char *)value,
3804  strlen(value));
3805 
3806  avio_w8(pb, 0);
3807 
3808  return update_size(pb, pos);
3809 }
3810 
3812 {
3813  int ret = AVERROR_BUG;
3814 
3815  for (int i = 0; ff_mov_track_kind_table[i].scheme_uri; i++) {
3817 
3818  for (int j = 0; map.value_maps[j].disposition; j++) {
3819  const struct MP4TrackKindValueMapping value_map = map.value_maps[j];
3820  if (!(st->disposition & value_map.disposition))
3821  continue;
3822 
3823  if ((ret = mov_write_track_kind(pb, map.scheme_uri, value_map.value)) < 0)
3824  return ret;
3825  }
3826  }
3827 
3828  return 0;
3829 }
3830 
3832  AVStream *st)
3833 {
3834  AVIOContext *pb_buf;
3835  int ret, size;
3836  uint8_t *buf;
3837 
3838  if (!st)
3839  return 0;
3840 
3841  ret = avio_open_dyn_buf(&pb_buf);
3842  if (ret < 0)
3843  return ret;
3844 
3845  if (mov->mode & (MODE_MP4|MODE_MOV))
3846  mov_write_track_metadata(pb_buf, st, "name", "title");
3847 
3848  if (mov->mode & MODE_MP4) {
3849  if ((ret = mov_write_track_kinds(pb_buf, st)) < 0)
3850  return ret;
3851  }
3852 
3853  if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3854  avio_wb32(pb, size + 8);
3855  ffio_wfourcc(pb, "udta");
3856  avio_write(pb, buf, size);
3857  }
3858  ffio_free_dyn_buf(&pb_buf);
3859 
3860  return 0;
3861 }
3862 
3864  MOVTrack *track, AVStream *st)
3865 {
3866  int64_t pos = avio_tell(pb);
3867  int entry_backup = track->entry;
3868  int chunk_backup = track->chunkCount;
3869  int ret;
3870 
3871  /* If we want to have an empty moov, but some samples already have been
3872  * buffered (delay_moov), pretend that no samples have been written yet. */
3873  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3874  track->chunkCount = track->entry = 0;
3875 
3876  avio_wb32(pb, 0); /* size */
3877  ffio_wfourcc(pb, "trak");
3878  mov_write_tkhd_tag(pb, mov, track, st);
3879 
3880  av_assert2(mov->use_editlist >= 0);
3881 
3882  if (track->start_dts != AV_NOPTS_VALUE) {
3883  if (mov->use_editlist)
3884  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3885  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3886  av_log(mov->fc, AV_LOG_WARNING,
3887  "Not writing any edit list even though one would have been required\n");
3888  }
3889 
3890  if (mov->is_animated_avif)
3891  mov_write_edts_tag(pb, mov, track);
3892 
3893  if (track->tref_tag)
3894  mov_write_tref_tag(pb, track);
3895 
3896  if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3897  return ret;
3898  if (track->mode == MODE_PSP)
3899  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3900  if (track->tag == MKTAG('r','t','p',' '))
3901  mov_write_udta_sdp(pb, track);
3902  if (track->mode == MODE_MOV) {
3903  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3904  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3905  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3906  mov_write_tapt_tag(pb, track);
3907  }
3908  }
3909  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3910  mov_write_tapt_tag(pb, track);
3911  }
3912  }
3913  mov_write_track_udta_tag(pb, mov, st);
3914  track->entry = entry_backup;
3915  track->chunkCount = chunk_backup;
3916  return update_size(pb, pos);
3917 }
3918 
3920 {
3921  int i, has_audio = 0, has_video = 0;
3922  int64_t pos = avio_tell(pb);
3923  int audio_profile = mov->iods_audio_profile;
3924  int video_profile = mov->iods_video_profile;
3925  for (i = 0; i < mov->nb_tracks; i++) {
3926  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3927  has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3928  has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3929  }
3930  }
3931  if (audio_profile < 0)
3932  audio_profile = 0xFF - has_audio;
3933  if (video_profile < 0)
3934  video_profile = 0xFF - has_video;
3935  avio_wb32(pb, 0x0); /* size */
3936  ffio_wfourcc(pb, "iods");
3937  avio_wb32(pb, 0); /* version & flags */
3938  put_descr(pb, 0x10, 7);
3939  avio_wb16(pb, 0x004f);
3940  avio_w8(pb, 0xff);
3941  avio_w8(pb, 0xff);
3942  avio_w8(pb, audio_profile);
3943  avio_w8(pb, video_profile);
3944  avio_w8(pb, 0xff);
3945  return update_size(pb, pos);
3946 }
3947 
3948 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3949 {
3950  avio_wb32(pb, 0x20); /* size */
3951  ffio_wfourcc(pb, "trex");
3952  avio_wb32(pb, 0); /* version & flags */
3953  avio_wb32(pb, track->track_id); /* track ID */
3954  avio_wb32(pb, 1); /* default sample description index */
3955  avio_wb32(pb, 0); /* default sample duration */
3956  avio_wb32(pb, 0); /* default sample size */
3957  avio_wb32(pb, 0); /* default sample flags */
3958  return 0;
3959 }
3960 
3962 {
3963  int64_t pos = avio_tell(pb);
3964  int i;
3965  avio_wb32(pb, 0x0); /* size */
3966  ffio_wfourcc(pb, "mvex");
3967  for (i = 0; i < mov->nb_tracks; i++)
3968  mov_write_trex_tag(pb, &mov->tracks[i]);
3969  return update_size(pb, pos);
3970 }
3971 
3973 {
3974  int max_track_id = 1, i;
3975  int64_t max_track_len = 0;
3976  int version;
3977  int timescale;
3978 
3979  for (i = 0; i < mov->nb_tracks; i++) {
3980  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3981  int64_t max_track_len_temp = av_rescale_rnd(
3982  calc_pts_duration(mov, &mov->tracks[i]),
3983  mov->movie_timescale,
3984  mov->tracks[i].timescale,
3985  AV_ROUND_UP);
3986  if (max_track_len < max_track_len_temp)
3987  max_track_len = max_track_len_temp;
3988  if (max_track_id < mov->tracks[i].track_id)
3989  max_track_id = mov->tracks[i].track_id;
3990  }
3991  }
3992  /* If using delay_moov, make sure the output is the same as if no
3993  * samples had been written yet. */
3994  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3995  max_track_len = 0;
3996  max_track_id = 1;
3997  }
3998 
3999  version = mov_mdhd_mvhd_tkhd_version(mov, NULL, max_track_len);
4000  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
4001 
4002  ffio_wfourcc(pb, "mvhd");
4003  avio_w8(pb, version);
4004  avio_wb24(pb, 0); /* flags */
4005  if (version == 1) {
4006  avio_wb64(pb, mov->time);
4007  avio_wb64(pb, mov->time);
4008  } else {
4009  avio_wb32(pb, mov->time); /* creation time */
4010  avio_wb32(pb, mov->time); /* modification time */
4011  }
4012 
4013  timescale = mov->movie_timescale;
4014  if (mov->mode == MODE_AVIF && !timescale)
4015  timescale = mov->tracks[0].timescale;
4016 
4017  avio_wb32(pb, timescale);
4018  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
4019 
4020  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
4021  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
4022  ffio_fill(pb, 0, 2 + 2 * 4); /* reserved */
4023 
4024  /* Matrix structure */
4025  write_matrix(pb, 1, 0, 0, 1, 0, 0);
4026 
4027  avio_wb32(pb, 0); /* reserved (preview time) */
4028  avio_wb32(pb, 0); /* reserved (preview duration) */
4029  avio_wb32(pb, 0); /* reserved (poster time) */
4030  avio_wb32(pb, 0); /* reserved (selection time) */
4031  avio_wb32(pb, 0); /* reserved (selection duration) */
4032  avio_wb32(pb, 0); /* reserved (current time) */
4033  avio_wb32(pb, max_track_id + 1); /* Next track id */
4034  return 0x6c;
4035 }
4036 
4038  AVFormatContext *s)
4039 {
4040  avio_wb32(pb, 33); /* size */
4041  ffio_wfourcc(pb, "hdlr");
4042  avio_wb32(pb, 0);
4043  avio_wb32(pb, 0);
4044  ffio_wfourcc(pb, "mdir");
4045  ffio_wfourcc(pb, "appl");
4046  avio_wb32(pb, 0);
4047  avio_wb32(pb, 0);
4048  avio_w8(pb, 0);
4049  return 33;
4050 }
4051 
4052 /* helper function to write a data tag with the specified string as data */
4053 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
4054 {
4055  size_t data_len = strlen(data);
4056  if (long_style) {
4057  int size = 16 + data_len;
4058  avio_wb32(pb, size); /* size */
4059  ffio_wfourcc(pb, "data");
4060  avio_wb32(pb, 1);
4061  avio_wb32(pb, 0);
4062  avio_write(pb, data, data_len);
4063  return size;
4064  } else {
4065  avio_wb16(pb, data_len); /* string length */
4066  if (!lang)
4067  lang = ff_mov_iso639_to_lang("und", 1);
4068  avio_wb16(pb, lang);
4069  avio_write(pb, data, data_len);
4070  return data_len + 4;
4071  }
4072 }
4073 
4074 static int mov_write_string_tag(AVIOContext *pb, const char *name,
4075  const char *value, int lang, int long_style)
4076 {
4077  int size = 0;
4078  if (value && value[0]) {
4079  int64_t pos = avio_tell(pb);
4080  avio_wb32(pb, 0); /* size */
4081  ffio_wfourcc(pb, name);
4082  mov_write_string_data_tag(pb, value, lang, long_style);
4083  size = update_size(pb, pos);
4084  }
4085  return size;
4086 }
4087 
4089  const char *tag, int *lang)
4090 {
4091  int l, len, len2;
4092  AVDictionaryEntry *t, *t2 = NULL;
4093  char tag2[16];
4094 
4095  *lang = 0;
4096 
4097  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
4098  return NULL;
4099 
4100  len = strlen(t->key);
4101  snprintf(tag2, sizeof(tag2), "%s-", tag);
4102  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
4103  len2 = strlen(t2->key);
4104  if (len2 == len + 4 && !strcmp(t->value, t2->value)
4105  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
4106  *lang = l;
4107  return t;
4108  }
4109  }
4110  return t;
4111 }
4112 
4114  const char *name, const char *tag,
4115  int long_style)
4116 {
4117  int lang;
4118  AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
4119  if (!t)
4120  return 0;
4121  return mov_write_string_tag(pb, name, t->value, lang, long_style);
4122 }
4123 
4124 /* iTunes bpm number */
4126 {
4127  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
4128  int size = 0, tmpo = t ? atoi(t->value) : 0;
4129  if (tmpo) {
4130  size = 26;
4131  avio_wb32(pb, size);
4132  ffio_wfourcc(pb, "tmpo");
4133  avio_wb32(pb, size-8); /* size */
4134  ffio_wfourcc(pb, "data");
4135  avio_wb32(pb, 0x15); //type specifier
4136  avio_wb32(pb, 0);
4137  avio_wb16(pb, tmpo); // data
4138  }
4139  return size;
4140 }
4141 
4142 /* 3GPP TS 26.244 */
4144 {
4145  int lang;
4146  int64_t pos = avio_tell(pb);
4147  double latitude, longitude, altitude;
4148  int32_t latitude_fix, longitude_fix, altitude_fix;
4149  AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
4150  const char *ptr, *place = "";
4151  char *end;
4152  static const char *astronomical_body = "earth";
4153  if (!t)
4154  return 0;
4155 
4156  ptr = t->value;
4157  latitude = strtod(ptr, &end);
4158  if (end == ptr) {
4159  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
4160  return 0;
4161  }
4162  ptr = end;
4163  longitude = strtod(ptr, &end);
4164  if (end == ptr) {
4165  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
4166  return 0;
4167  }
4168  ptr = end;
4169  altitude = strtod(ptr, &end);
4170  /* If no altitude was present, the default 0 should be fine */
4171  if (*end == '/')
4172  place = end + 1;
4173 
4174  latitude_fix = (int32_t) ((1 << 16) * latitude);
4175  longitude_fix = (int32_t) ((1 << 16) * longitude);
4176  altitude_fix = (int32_t) ((1 << 16) * altitude);
4177 
4178  avio_wb32(pb, 0); /* size */
4179  ffio_wfourcc(pb, "loci"); /* type */
4180  avio_wb32(pb, 0); /* version + flags */
4181  avio_wb16(pb, lang);
4182  avio_write(pb, place, strlen(place) + 1);
4183  avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
4184  avio_wb32(pb, longitude_fix);
4185  avio_wb32(pb, latitude_fix);
4186  avio_wb32(pb, altitude_fix);
4187  avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
4188  avio_w8(pb, 0); /* additional notes, null terminated string */
4189 
4190  return update_size(pb, pos);
4191 }
4192 
4193 /* iTunes track or disc number */
4195  AVFormatContext *s, int disc)
4196 {
4197  AVDictionaryEntry *t = av_dict_get(s->metadata,
4198  disc ? "disc" : "track",
4199  NULL, 0);
4200  int size = 0, track = t ? atoi(t->value) : 0;
4201  if (track) {
4202  int tracks = 0;
4203  char *slash = strchr(t->value, '/');
4204  if (slash)
4205  tracks = atoi(slash + 1);
4206  avio_wb32(pb, 32); /* size */
4207  ffio_wfourcc(pb, disc ? "disk" : "trkn");
4208  avio_wb32(pb, 24); /* size */
4209  ffio_wfourcc(pb, "data");
4210  avio_wb32(pb, 0); // 8 bytes empty
4211  avio_wb32(pb, 0);
4212  avio_wb16(pb, 0); // empty
4213  avio_wb16(pb, track); // track / disc number
4214  avio_wb16(pb, tracks); // total track / disc number
4215  avio_wb16(pb, 0); // empty
4216  size = 32;
4217  }
4218  return size;
4219 }
4220