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Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavformat / movenc.c
1 /*
2 * MOV, 3GP, MP4 muxer
3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include <stdint.h>
25 #include <inttypes.h>
26
27 #include "movenc.h"
28 #include "avformat.h"
29 #include "avio_internal.h"
30 #include "riff.h"
31 #include "avio.h"
32 #include "isom.h"
33 #include "avc.h"
34 #include "libavcodec/ac3_parser.h"
35 #include "libavcodec/get_bits.h"
36 #include "libavcodec/put_bits.h"
37 #include "libavcodec/vc1_common.h"
38 #include "libavcodec/raw.h"
39 #include "internal.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/intfloat.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/timecode.h"
47 #include "hevc.h"
48 #include "rtpenc.h"
49 #include "mov_chan.h"
50
51 #undef NDEBUG
52 #include <assert.h>
53
54 static const AVOption options[] = {
55 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
58 { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
65 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
66 { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
67 { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
68 { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
69 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
70 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
71 { "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},
72 { "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},
73 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
74 { "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},
75 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
76 { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
77 { "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},
78 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
79 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
80 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
81 { NULL },
82 };
83
84 #define MOV_CLASS(flavor)\
85 static const AVClass flavor ## _muxer_class = {\
86 .class_name = #flavor " muxer",\
87 .item_name = av_default_item_name,\
88 .option = options,\
89 .version = LIBAVUTIL_VERSION_INT,\
90 };
91
92 static int get_moov_size(AVFormatContext *s);
93
94 static int utf8len(const uint8_t *b)
95 {
96 int len = 0;
97 int val;
98 while (*b) {
99 GET_UTF8(val, *b++, return -1;)
100 len++;
101 }
102 return len;
103 }
104
105 //FIXME support 64 bit variant with wide placeholders
106 static int64_t update_size(AVIOContext *pb, int64_t pos)
107 {
108 int64_t curpos = avio_tell(pb);
109 avio_seek(pb, pos, SEEK_SET);
110 avio_wb32(pb, curpos - pos); /* rewrite size */
111 avio_seek(pb, curpos, SEEK_SET);
112
113 return curpos - pos;
114 }
115
116 static int co64_required(const MOVTrack *track)
117 {
118 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
119 return 1;
120 return 0;
121 }
122
123 /* Chunk offset atom */
124 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
125 {
126 int i;
127 int mode64 = co64_required(track); // use 32 bit size variant if possible
128 int64_t pos = avio_tell(pb);
129 avio_wb32(pb, 0); /* size */
130 if (mode64)
131 ffio_wfourcc(pb, "co64");
132 else
133 ffio_wfourcc(pb, "stco");
134 avio_wb32(pb, 0); /* version & flags */
135 avio_wb32(pb, track->chunkCount); /* entry count */
136 for (i = 0; i < track->entry; i++) {
137 if (!track->cluster[i].chunkNum)
138 continue;
139 if (mode64 == 1)
140 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
141 else
142 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
143 }
144 return update_size(pb, pos);
145 }
146
147 /* Sample size atom */
148 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
149 {
150 int equalChunks = 1;
151 int i, j, entries = 0, tst = -1, oldtst = -1;
152
153 int64_t pos = avio_tell(pb);
154 avio_wb32(pb, 0); /* size */
155 ffio_wfourcc(pb, "stsz");
156 avio_wb32(pb, 0); /* version & flags */
157
158 for (i = 0; i < track->entry; i++) {
159 tst = track->cluster[i].size / track->cluster[i].entries;
160 if (oldtst != -1 && tst != oldtst)
161 equalChunks = 0;
162 oldtst = tst;
163 entries += track->cluster[i].entries;
164 }
165 if (equalChunks && track->entry) {
166 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
167 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
168 avio_wb32(pb, sSize); // sample size
169 avio_wb32(pb, entries); // sample count
170 } else {
171 avio_wb32(pb, 0); // sample size
172 avio_wb32(pb, entries); // sample count
173 for (i = 0; i < track->entry; i++) {
174 for (j = 0; j < track->cluster[i].entries; j++) {
175 avio_wb32(pb, track->cluster[i].size /
176 track->cluster[i].entries);
177 }
178 }
179 }
180 return update_size(pb, pos);
181 }
182
183 /* Sample to chunk atom */
184 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
185 {
186 int index = 0, oldval = -1, i;
187 int64_t entryPos, curpos;
188
189 int64_t pos = avio_tell(pb);
190 avio_wb32(pb, 0); /* size */
191 ffio_wfourcc(pb, "stsc");
192 avio_wb32(pb, 0); // version & flags
193 entryPos = avio_tell(pb);
194 avio_wb32(pb, track->chunkCount); // entry count
195 for (i = 0; i < track->entry; i++) {
196 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
197 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
198 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
199 avio_wb32(pb, 0x1); // sample description index
200 oldval = track->cluster[i].samples_in_chunk;
201 index++;
202 }
203 }
204 curpos = avio_tell(pb);
205 avio_seek(pb, entryPos, SEEK_SET);
206 avio_wb32(pb, index); // rewrite size
207 avio_seek(pb, curpos, SEEK_SET);
208
209 return update_size(pb, pos);
210 }
211
212 /* Sync sample atom */
213 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
214 {
215 int64_t curpos, entryPos;
216 int i, index = 0;
217 int64_t pos = avio_tell(pb);
218 avio_wb32(pb, 0); // size
219 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
220 avio_wb32(pb, 0); // version & flags
221 entryPos = avio_tell(pb);
222 avio_wb32(pb, track->entry); // entry count
223 for (i = 0; i < track->entry; i++) {
224 if (track->cluster[i].flags & flag) {
225 avio_wb32(pb, i + 1);
226 index++;
227 }
228 }
229 curpos = avio_tell(pb);
230 avio_seek(pb, entryPos, SEEK_SET);
231 avio_wb32(pb, index); // rewrite size
232 avio_seek(pb, curpos, SEEK_SET);
233 return update_size(pb, pos);
234 }
235
236 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
237 {
238 avio_wb32(pb, 0x11); /* size */
239 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
240 else ffio_wfourcc(pb, "damr");
241 ffio_wfourcc(pb, "FFMP");
242 avio_w8(pb, 0); /* decoder version */
243
244 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
245 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
246 avio_w8(pb, 0x01); /* Frames per sample */
247 return 0x11;
248 }
249
250 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
251 {
252 GetBitContext gbc;
253 PutBitContext pbc;
254 uint8_t buf[3];
255 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
256
257 if (track->vos_len < 7)
258 return -1;
259
260 avio_wb32(pb, 11);
261 ffio_wfourcc(pb, "dac3");
262
263 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
264 fscod = get_bits(&gbc, 2);
265 frmsizecod = get_bits(&gbc, 6);
266 bsid = get_bits(&gbc, 5);
267 bsmod = get_bits(&gbc, 3);
268 acmod = get_bits(&gbc, 3);
269 if (acmod == 2) {
270 skip_bits(&gbc, 2); // dsurmod
271 } else {
272 if ((acmod & 1) && acmod != 1)
273 skip_bits(&gbc, 2); // cmixlev
274 if (acmod & 4)
275 skip_bits(&gbc, 2); // surmixlev
276 }
277 lfeon = get_bits1(&gbc);
278
279 init_put_bits(&pbc, buf, sizeof(buf));
280 put_bits(&pbc, 2, fscod);
281 put_bits(&pbc, 5, bsid);
282 put_bits(&pbc, 3, bsmod);
283 put_bits(&pbc, 3, acmod);
284 put_bits(&pbc, 1, lfeon);
285 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
286 put_bits(&pbc, 5, 0); // reserved
287
288 flush_put_bits(&pbc);
289 avio_write(pb, buf, sizeof(buf));
290
291 return 11;
292 }
293
294 struct eac3_info {
295 AVPacket pkt;
296 uint8_t ec3_done;
297 uint8_t num_blocks;
298
299 /* Layout of the EC3SpecificBox */
300 /* maximum bitrate */
301 uint16_t data_rate;
302 /* number of independent substreams */
303 uint8_t num_ind_sub;
304 struct {
305 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
306 uint8_t fscod;
307 /* bit stream identification 5 bits */
308 uint8_t bsid;
309 /* one bit reserved */
310 /* audio service mixing (not supported yet) 1 bit */
311 /* bit stream mode 3 bits */
312 uint8_t bsmod;
313 /* audio coding mode 3 bits */
314 uint8_t acmod;
315 /* sub woofer on 1 bit */
316 uint8_t lfeon;
317 /* 3 bits reserved */
318 /* number of dependent substreams associated with this substream 4 bits */
319 uint8_t num_dep_sub;
320 /* channel locations of the dependent substream(s), if any, 9 bits */
321 uint16_t chan_loc;
322 /* if there is no dependent substream, then one bit reserved instead */
323 } substream[1]; /* TODO: support 8 independent substreams */
324 };
325
326 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
327 {
328 GetBitContext gbc;
329 AC3HeaderInfo tmp, *hdr = &tmp;
330 struct eac3_info *info;
331 int num_blocks;
332
333 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
334 return AVERROR(ENOMEM);
335 info = track->eac3_priv;
336
337 init_get_bits(&gbc, pkt->data, pkt->size * 8);
338 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
339 /* drop the packets until we see a good one */
340 if (!track->entry) {
341 av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
342 return 0;
343 }
344 return AVERROR_INVALIDDATA;
345 }
346
347 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
348 num_blocks = hdr->num_blocks;
349
350 if (!info->ec3_done) {
351 /* AC-3 substream must be the first one */
352 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
353 return AVERROR(EINVAL);
354
355 /* this should always be the case, given that our AC-3 parser
356 * concatenates dependent frames to their independent parent */
357 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
358 /* substream ids must be incremental */
359 if (hdr->substreamid > info->num_ind_sub + 1)
360 return AVERROR(EINVAL);
361
362 if (hdr->substreamid == info->num_ind_sub + 1) {
363 //info->num_ind_sub++;
364 avpriv_request_sample(track->enc, "Multiple independent substreams");
365 return AVERROR_PATCHWELCOME;
366 } else if (hdr->substreamid < info->num_ind_sub ||
367 hdr->substreamid == 0 && info->substream[0].bsid) {
368 info->ec3_done = 1;
369 goto concatenate;
370 }
371 }
372
373 /* fill the info needed for the "dec3" atom */
374 info->substream[hdr->substreamid].fscod = hdr->sr_code;
375 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
376 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
377 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
378 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
379
380 /* Parse dependent substream(s), if any */
381 if (pkt->size != hdr->frame_size) {
382 int cumul_size = hdr->frame_size;
383 int parent = hdr->substreamid;
384
385 while (cumul_size != pkt->size) {
386 int i;
387 init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
388 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
389 return AVERROR_INVALIDDATA;
390 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
391 return AVERROR(EINVAL);
392 cumul_size += hdr->frame_size;
393 info->substream[parent].num_dep_sub++;
394
395 /* header is parsed up to lfeon, but custom channel map may be needed */
396 /* skip bsid */
397 skip_bits(&gbc, 5);
398 /* skip volume control params */
399 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
400 skip_bits(&gbc, 5); // skip dialog normalization
401 if (get_bits1(&gbc)) {
402 skip_bits(&gbc, 8); // skip compression gain word
403 }
404 }
405 /* get the dependent stream channel map, if exists */
406 if (get_bits1(&gbc))
407 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
408 else
409 info->substream[parent].chan_loc |= hdr->channel_mode;
410 }
411 }
412 }
413
414 concatenate:
415 if (!info->num_blocks && num_blocks == 6)
416 return pkt->size;
417 else if (info->num_blocks + num_blocks > 6)
418 return AVERROR_INVALIDDATA;
419
420 if (!info->num_blocks) {
421 int ret;
422 if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
423 return ret;
424 info->num_blocks = num_blocks;
425 return 0;
426 } else {
427 int ret;
428 if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
429 return ret;
430 memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
431 info->num_blocks += num_blocks;
432 info->pkt.duration += pkt->duration;
433 if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
434 return ret;
435 if (info->num_blocks != 6)
436 return 0;
437 av_free_packet(pkt);
438 if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
439 return ret;
440 av_free_packet(&info->pkt);
441 info->num_blocks = 0;
442 }
443
444 return pkt->size;
445 }
446
447 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
448 {
449 PutBitContext pbc;
450 uint8_t *buf;
451 struct eac3_info *info;
452 int size, i;
453
454 if (!track->eac3_priv)
455 return AVERROR(EINVAL);
456
457 info = track->eac3_priv;
458 size = 2 + 4 * (info->num_ind_sub + 1);
459 buf = av_malloc(size);
460 if (!buf) {
461 size = AVERROR(ENOMEM);
462 goto end;
463 }
464
465 init_put_bits(&pbc, buf, size);
466 put_bits(&pbc, 13, info->data_rate);
467 put_bits(&pbc, 3, info->num_ind_sub);
468 for (i = 0; i <= info->num_ind_sub; i++) {
469 put_bits(&pbc, 2, info->substream[i].fscod);
470 put_bits(&pbc, 5, info->substream[i].bsid);
471 put_bits(&pbc, 1, 0); /* reserved */
472 put_bits(&pbc, 1, 0); /* asvc */
473 put_bits(&pbc, 3, info->substream[i].bsmod);
474 put_bits(&pbc, 3, info->substream[i].acmod);
475 put_bits(&pbc, 1, info->substream[i].lfeon);
476 put_bits(&pbc, 5, 0); /* reserved */
477 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
478 if (!info->substream[i].num_dep_sub) {
479 put_bits(&pbc, 1, 0); /* reserved */
480 size--;
481 } else {
482 put_bits(&pbc, 9, info->substream[i].chan_loc);
483 }
484 }
485 flush_put_bits(&pbc);
486
487 avio_wb32(pb, size + 8);
488 ffio_wfourcc(pb, "dec3");
489 avio_write(pb, buf, size);
490
491 av_free(buf);
492
493 end:
494 av_free_packet(&info->pkt);
495 av_freep(&track->eac3_priv);
496
497 return size;
498 }
499
500 /**
501 * This function writes extradata "as is".
502 * Extradata must be formatted like a valid atom (with size and tag).
503 */
504 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
505 {
506 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
507 return track->enc->extradata_size;
508 }
509
510 static int mov_write_enda_tag(AVIOContext *pb)
511 {
512 avio_wb32(pb, 10);
513 ffio_wfourcc(pb, "enda");
514 avio_wb16(pb, 1); /* little endian */
515 return 10;
516 }
517
518 static int mov_write_enda_tag_be(AVIOContext *pb)
519 {
520 avio_wb32(pb, 10);
521 ffio_wfourcc(pb, "enda");
522 avio_wb16(pb, 0); /* big endian */
523 return 10;
524 }
525
526 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
527 {
528 int i = 3;
529 avio_w8(pb, tag);
530 for (; i > 0; i--)
531 avio_w8(pb, (size >> (7 * i)) | 0x80);
532 avio_w8(pb, size & 0x7F);
533 }
534
535 static unsigned compute_avg_bitrate(MOVTrack *track)
536 {
537 uint64_t size = 0;
538 int i;
539 if (!track->track_duration)
540 return 0;
541 for (i = 0; i < track->entry; i++)
542 size += track->cluster[i].size;
543 return size * 8 * track->timescale / track->track_duration;
544 }
545
546 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
547 {
548 int64_t pos = avio_tell(pb);
549 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
550 unsigned avg_bitrate;
551
552 avio_wb32(pb, 0); // size
553 ffio_wfourcc(pb, "esds");
554 avio_wb32(pb, 0); // Version
555
556 // ES descriptor
557 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
558 avio_wb16(pb, track->track_id);
559 avio_w8(pb, 0x00); // flags (= no flags)
560
561 // DecoderConfig descriptor
562 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
563
564 // Object type indication
565 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
566 track->enc->codec_id == AV_CODEC_ID_MP3) &&
567 track->enc->sample_rate > 24000)
568 avio_w8(pb, 0x6B); // 11172-3
569 else
570 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
571
572 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
573 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
574 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
575 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
576 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
577 avio_w8(pb, 0x15); // flags (= Audiostream)
578 else
579 avio_w8(pb, 0x11); // flags (= Visualstream)
580
581 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
582
583 avg_bitrate = compute_avg_bitrate(track);
584 // maxbitrate (FIXME should be max rate in any 1 sec window)
585 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
586 avio_wb32(pb, avg_bitrate);
587
588 if (track->vos_len) {
589 // DecoderSpecific info descriptor
590 put_descr(pb, 0x05, track->vos_len);
591 avio_write(pb, track->vos_data, track->vos_len);
592 }
593
594 // SL descriptor
595 put_descr(pb, 0x06, 1);
596 avio_w8(pb, 0x02);
597 return update_size(pb, pos);
598 }
599
600 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
601 {
602 return codec_id == AV_CODEC_ID_PCM_S24LE ||
603 codec_id == AV_CODEC_ID_PCM_S32LE ||
604 codec_id == AV_CODEC_ID_PCM_F32LE ||
605 codec_id == AV_CODEC_ID_PCM_F64LE;
606 }
607
608 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
609 {
610 return codec_id == AV_CODEC_ID_PCM_S24BE ||
611 codec_id == AV_CODEC_ID_PCM_S32BE ||
612 codec_id == AV_CODEC_ID_PCM_F32BE ||
613 codec_id == AV_CODEC_ID_PCM_F64BE;
614 }
615
616 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
617 {
618 int ret;
619 int64_t pos = avio_tell(pb);
620 avio_wb32(pb, 0);
621 avio_wl32(pb, track->tag); // store it byteswapped
622 track->enc->codec_tag = av_bswap16(track->tag >> 16);
623 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
624 return ret;
625 return update_size(pb, pos);
626 }
627
628 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
629 {
630 int ret;
631 int64_t pos = avio_tell(pb);
632 avio_wb32(pb, 0);
633 ffio_wfourcc(pb, "wfex");
634 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
635 return ret;
636 return update_size(pb, pos);
637 }
638
639 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
640 {
641 uint32_t layout_tag, bitmap;
642 int64_t pos = avio_tell(pb);
643
644 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
645 track->enc->channel_layout,
646 &bitmap);
647 if (!layout_tag) {
648 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
649 "lack of channel information\n");
650 return 0;
651 }
652
653 if (track->multichannel_as_mono)
654 return 0;
655
656 avio_wb32(pb, 0); // Size
657 ffio_wfourcc(pb, "chan"); // Type
658 avio_w8(pb, 0); // Version
659 avio_wb24(pb, 0); // Flags
660 avio_wb32(pb, layout_tag); // mChannelLayoutTag
661 avio_wb32(pb, bitmap); // mChannelBitmap
662 avio_wb32(pb, 0); // mNumberChannelDescriptions
663
664 return update_size(pb, pos);
665 }
666
667 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
668 {
669 int64_t pos = avio_tell(pb);
670
671 avio_wb32(pb, 0); /* size */
672 ffio_wfourcc(pb, "wave");
673
674 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
675 avio_wb32(pb, 12); /* size */
676 ffio_wfourcc(pb, "frma");
677 avio_wl32(pb, track->tag);
678 }
679
680 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
681 /* useless atom needed by mplayer, ipod, not needed by quicktime */
682 avio_wb32(pb, 12); /* size */
683 ffio_wfourcc(pb, "mp4a");
684 avio_wb32(pb, 0);
685 mov_write_esds_tag(pb, track);
686 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
687 mov_write_enda_tag(pb);
688 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
689 mov_write_enda_tag_be(pb);
690 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
691 mov_write_amr_tag(pb, track);
692 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
693 mov_write_ac3_tag(pb, track);
694 } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
695 mov_write_eac3_tag(pb, track);
696 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
697 track->enc->codec_id == AV_CODEC_ID_QDM2) {
698 mov_write_extradata_tag(pb, track);
699 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
700 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
701 mov_write_ms_tag(pb, track);
702 }
703
704 avio_wb32(pb, 8); /* size */
705 avio_wb32(pb, 0); /* null tag */
706
707 return update_size(pb, pos);
708 }
709
710 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
711 {
712 uint8_t *unescaped;
713 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
714 int unescaped_size, seq_found = 0;
715 int level = 0, interlace = 0;
716 int packet_seq = track->vc1_info.packet_seq;
717 int packet_entry = track->vc1_info.packet_entry;
718 int slices = track->vc1_info.slices;
719 PutBitContext pbc;
720
721 if (track->start_dts == AV_NOPTS_VALUE) {
722 /* No packets written yet, vc1_info isn't authoritative yet. */
723 /* Assume inline sequence and entry headers. This will be
724 * overwritten at the end if the file is seekable. */
725 packet_seq = packet_entry = 1;
726 }
727
728 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
729 if (!unescaped)
730 return AVERROR(ENOMEM);
731 start = find_next_marker(track->vos_data, end);
732 for (next = start; next < end; start = next) {
733 GetBitContext gb;
734 int size;
735 next = find_next_marker(start + 4, end);
736 size = next - start - 4;
737 if (size <= 0)
738 continue;
739 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
740 init_get_bits(&gb, unescaped, 8 * unescaped_size);
741 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
742 int profile = get_bits(&gb, 2);
743 if (profile != PROFILE_ADVANCED) {
744 av_free(unescaped);
745 return AVERROR(ENOSYS);
746 }
747 seq_found = 1;
748 level = get_bits(&gb, 3);
749 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
750 * width, height */
751 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
752 skip_bits(&gb, 1); /* broadcast */
753 interlace = get_bits1(&gb);
754 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
755 }
756 }
757 if (!seq_found) {
758 av_free(unescaped);
759 return AVERROR(ENOSYS);
760 }
761
762 init_put_bits(&pbc, buf, 7);
763 /* VC1DecSpecStruc */
764 put_bits(&pbc, 4, 12); /* profile - advanced */
765 put_bits(&pbc, 3, level);
766 put_bits(&pbc, 1, 0); /* reserved */
767 /* VC1AdvDecSpecStruc */
768 put_bits(&pbc, 3, level);
769 put_bits(&pbc, 1, 0); /* cbr */
770 put_bits(&pbc, 6, 0); /* reserved */
771 put_bits(&pbc, 1, !interlace); /* no interlace */
772 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
773 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
774 put_bits(&pbc, 1, !slices); /* no slice code */
775 put_bits(&pbc, 1, 0); /* no bframe */
776 put_bits(&pbc, 1, 0); /* reserved */
777
778 /* framerate */
779 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
780 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
781 else
782 put_bits32(&pbc, 0xffffffff);
783
784 flush_put_bits(&pbc);
785
786 av_free(unescaped);
787
788 return 0;
789 }
790
791 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
792 {
793 uint8_t buf[7] = { 0 };
794 int ret;
795
796 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
797 return ret;
798
799 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
800 ffio_wfourcc(pb, "dvc1");
801 track->vc1_info.struct_offset = avio_tell(pb);
802 avio_write(pb, buf, sizeof(buf));
803 avio_write(pb, track->vos_data, track->vos_len);
804
805 return 0;
806 }
807
808 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
809 {
810 avio_wb32(pb, track->vos_len + 8);
811 ffio_wfourcc(pb, "glbl");
812 avio_write(pb, track->vos_data, track->vos_len);
813 return 8 + track->vos_len;
814 }
815
816 /**
817 * Compute flags for 'lpcm' tag.
818 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
819 */
820 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
821 {
822 switch (codec_id) {
823 case AV_CODEC_ID_PCM_F32BE:
824 case AV_CODEC_ID_PCM_F64BE:
825 return 11;
826 case AV_CODEC_ID_PCM_F32LE:
827 case AV_CODEC_ID_PCM_F64LE:
828 return 9;
829 case AV_CODEC_ID_PCM_U8:
830 return 10;
831 case AV_CODEC_ID_PCM_S16BE:
832 case AV_CODEC_ID_PCM_S24BE:
833 case AV_CODEC_ID_PCM_S32BE:
834 return 14;
835 case AV_CODEC_ID_PCM_S8:
836 case AV_CODEC_ID_PCM_S16LE:
837 case AV_CODEC_ID_PCM_S24LE:
838 case AV_CODEC_ID_PCM_S32LE:
839 return 12;
840 default:
841 return 0;
842 }
843 }
844
845 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
846 {
847 int64_t next_dts;
848
849 if (cluster_idx >= track->entry)
850 return 0;
851
852 if (cluster_idx + 1 == track->entry)
853 next_dts = track->track_duration + track->start_dts;
854 else
855 next_dts = track->cluster[cluster_idx + 1].dts;
856
857 next_dts -= track->cluster[cluster_idx].dts;
858
859 av_assert0(next_dts >= 0);
860 av_assert0(next_dts <= INT_MAX);
861
862 return next_dts;
863 }
864
865 static int get_samples_per_packet(MOVTrack *track)
866 {
867 int i, first_duration;
868
869 // return track->enc->frame_size;
870
871 /* use 1 for raw PCM */
872 if (!track->audio_vbr)
873 return 1;
874
875 /* check to see if duration is constant for all clusters */
876 if (!track->entry)
877 return 0;
878 first_duration = get_cluster_duration(track, 0);
879 for (i = 1; i < track->entry; i++) {
880 if (get_cluster_duration(track, i) != first_duration)
881 return 0;
882 }
883 return first_duration;
884 }
885
886 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
887 {
888 int64_t pos = avio_tell(pb);
889 int version = 0;
890 uint32_t tag = track->tag;
891
892 if (track->mode == MODE_MOV) {
893 if (track->timescale > UINT16_MAX) {
894 if (mov_get_lpcm_flags(track->enc->codec_id))
895 tag = AV_RL32("lpcm");
896 version = 2;
897 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
898 mov_pcm_be_gt16(track->enc->codec_id) ||
899 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
900 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
901 track->enc->codec_id == AV_CODEC_ID_QDM2) {
902 version = 1;
903 }
904 }
905
906 avio_wb32(pb, 0); /* size */
907 avio_wl32(pb, tag); // store it byteswapped
908 avio_wb32(pb, 0); /* Reserved */
909 avio_wb16(pb, 0); /* Reserved */
910 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
911
912 /* SoundDescription */
913 avio_wb16(pb, version); /* Version */
914 avio_wb16(pb, 0); /* Revision level */
915 avio_wb32(pb, 0); /* Reserved */
916
917 if (version == 2) {
918 avio_wb16(pb, 3);
919 avio_wb16(pb, 16);
920 avio_wb16(pb, 0xfffe);
921 avio_wb16(pb, 0);
922 avio_wb32(pb, 0x00010000);
923 avio_wb32(pb, 72);
924 avio_wb64(pb, av_double2int(track->enc->sample_rate));
925 avio_wb32(pb, track->enc->channels);
926 avio_wb32(pb, 0x7F000000);
927 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
928 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
929 avio_wb32(pb, track->sample_size);
930 avio_wb32(pb, get_samples_per_packet(track));
931 } else {
932 if (track->mode == MODE_MOV) {
933 avio_wb16(pb, track->enc->channels);
934 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
935 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
936 avio_wb16(pb, 8); /* bits per sample */
937 else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
938 avio_wb16(pb, track->enc->bits_per_coded_sample);
939 else
940 avio_wb16(pb, 16);
941 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
942 } else { /* reserved for mp4/3gp */
943 avio_wb16(pb, 2);
944 avio_wb16(pb, 16);
945 avio_wb16(pb, 0);
946 }
947
948 avio_wb16(pb, 0); /* packet size (= 0) */
949 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
950 track->enc->sample_rate : 0);
951 avio_wb16(pb, 0); /* Reserved */
952 }
953
954 if (version == 1) { /* SoundDescription V1 extended info */
955 if (mov_pcm_le_gt16(track->enc->codec_id) ||
956 mov_pcm_be_gt16(track->enc->codec_id))
957 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
958 else
959 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
960 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
961 avio_wb32(pb, track->sample_size); /* Bytes per frame */
962 avio_wb32(pb, 2); /* Bytes per sample */
963 }
964
965 if (track->mode == MODE_MOV &&
966 (track->enc->codec_id == AV_CODEC_ID_AAC ||
967 track->enc->codec_id == AV_CODEC_ID_AC3 ||
968 track->enc->codec_id == AV_CODEC_ID_EAC3 ||
969 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
970 track->enc->codec_id == AV_CODEC_ID_ALAC ||
971 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
972 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
973 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
974 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
975 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
976 mov_write_wave_tag(pb, track);
977 else if (track->tag == MKTAG('m','p','4','a'))
978 mov_write_esds_tag(pb, track);
979 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
980 mov_write_amr_tag(pb, track);
981 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
982 mov_write_ac3_tag(pb, track);
983 else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
984 mov_write_eac3_tag(pb, track);
985 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
986 mov_write_extradata_tag(pb, track);
987 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
988 mov_write_wfex_tag(pb, track);
989 else if (track->vos_len > 0)
990 mov_write_glbl_tag(pb, track);
991
992 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
993 mov_write_chan_tag(pb, track);
994
995 return update_size(pb, pos);
996 }
997
998 static int mov_write_d263_tag(AVIOContext *pb)
999 {
1000 avio_wb32(pb, 0xf); /* size */
1001 ffio_wfourcc(pb, "d263");
1002 ffio_wfourcc(pb, "FFMP");
1003 avio_w8(pb, 0); /* decoder version */
1004 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1005 avio_w8(pb, 0xa); /* level */
1006 avio_w8(pb, 0); /* profile */
1007 return 0xf;
1008 }
1009
1010 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1011 {
1012 int64_t pos = avio_tell(pb);
1013
1014 avio_wb32(pb, 0);
1015 ffio_wfourcc(pb, "avcC");
1016 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1017 return update_size(pb, pos);
1018 }
1019
1020 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1021 {
1022 int64_t pos = avio_tell(pb);
1023
1024 avio_wb32(pb, 0);
1025 ffio_wfourcc(pb, "hvcC");
1026 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1027 return update_size(pb, pos);
1028 }
1029
1030 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1031 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1032 {
1033 int i;
1034 avio_wb32(pb, 24); /* size */
1035 ffio_wfourcc(pb, "ACLR");
1036 ffio_wfourcc(pb, "ACLR");
1037 ffio_wfourcc(pb, "0001");
1038 if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
1039 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1040 } else { /* Full range (0-255) */
1041 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1042 }
1043 avio_wb32(pb, 0); /* unknown */
1044
1045 avio_wb32(pb, 24); /* size */
1046 ffio_wfourcc(pb, "APRG");
1047 ffio_wfourcc(pb, "APRG");
1048 ffio_wfourcc(pb, "0001");
1049 avio_wb32(pb, 1); /* unknown */
1050 avio_wb32(pb, 0); /* unknown */
1051
1052 avio_wb32(pb, 120); /* size */
1053 ffio_wfourcc(pb, "ARES");
1054 ffio_wfourcc(pb, "ARES");
1055 ffio_wfourcc(pb, "0001");
1056 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
1057 avio_wb32(pb, track->enc->width);
1058 /* values below are based on samples created with quicktime and avid codecs */
1059 if (track->vos_data[5] & 2) { // interlaced
1060 avio_wb32(pb, track->enc->height / 2);
1061 avio_wb32(pb, 2); /* unknown */
1062 avio_wb32(pb, 0); /* unknown */
1063 avio_wb32(pb, 4); /* unknown */
1064 } else {
1065 avio_wb32(pb, track->enc->height);
1066 avio_wb32(pb, 1); /* unknown */
1067 avio_wb32(pb, 0); /* unknown */
1068 if (track->enc->height == 1080)
1069 avio_wb32(pb, 5); /* unknown */
1070 else
1071 avio_wb32(pb, 6); /* unknown */
1072 }
1073 /* padding */
1074 for (i = 0; i < 10; i++)
1075 avio_wb64(pb, 0);
1076
1077 /* extra padding for stsd needed */
1078 avio_wb32(pb, 0);
1079 return 0;
1080 }
1081
1082 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1083 {
1084 int tag = track->enc->codec_tag;
1085
1086 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1087 return 0;
1088
1089 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1090 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1091 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1092 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1093 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1094 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1095 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1096 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1097 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1098 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1099
1100 return tag;
1101 }
1102
1103 static const AVCodecTag codec_ipod_tags[] = {
1104 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1105 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1106 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1107 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1108 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1109 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1110 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1111 { AV_CODEC_ID_NONE, 0 },
1112 };
1113
1114 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1115 {
1116 int tag = track->enc->codec_tag;
1117
1118 // keep original tag for subs, ipod supports both formats
1119 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1120 (tag == MKTAG('t', 'x', '3', 'g') ||
1121 tag == MKTAG('t', 'e', 'x', 't'))))
1122 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1123
1124 if (!av_match_ext(s->filename, "m4a") &&
1125 !av_match_ext(s->filename, "m4b") &&
1126 !av_match_ext(s->filename, "m4v"))
1127 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1128 "Quicktime/Ipod might not play the file\n");
1129
1130 return tag;
1131 }
1132
1133 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1134 {
1135 int tag;
1136
1137 if (track->enc->width == 720) { /* SD */
1138 if (track->enc->height == 480) { /* NTSC */
1139 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1140 else tag = MKTAG('d','v','c',' ');
1141 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1142 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1143 else tag = MKTAG('d','v','p','p');
1144 } else if (track->enc->height == 720) { /* HD 720 line */
1145 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1146 else tag = MKTAG('d','v','h','p');
1147 } else if (track->enc->height == 1080) { /* HD 1080 line */
1148 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1149 else tag = MKTAG('d','v','h','6');
1150 } else {
1151 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1152 return 0;
1153 }
1154
1155 return tag;
1156 }
1157
1158 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1159 {
1160 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1161 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1162 if (av_timecode_check_frame_rate(rate) < 0) {
1163 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1164 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1165 rate = st->avg_frame_rate;
1166 }
1167
1168 return rate;
1169 }
1170
1171 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1172 {
1173 int tag = track->enc->codec_tag;
1174 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1175 AVStream *st = track->st;
1176 int rate = av_q2d(find_fps(s, st));
1177
1178 if (!tag)
1179 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1180
1181 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1182 if (track->enc->width == 1280 && track->enc->height == 720) {
1183 if (!interlaced) {
1184 if (rate == 24) tag = MKTAG('x','d','v','4');
1185 else if (rate == 25) tag = MKTAG('x','d','v','5');
1186 else if (rate == 30) tag = MKTAG('x','d','v','1');
1187 else if (rate == 50) tag = MKTAG('x','d','v','a');
1188 else if (rate == 60) tag = MKTAG('x','d','v','9');
1189 }
1190 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1191 if (!interlaced) {
1192 if (rate == 24) tag = MKTAG('x','d','v','6');
1193 else if (rate == 25) tag = MKTAG('x','d','v','7');
1194 else if (rate == 30) tag = MKTAG('x','d','v','8');
1195 } else {
1196 if (rate == 25) tag = MKTAG('x','d','v','3');
1197 else if (rate == 30) tag = MKTAG('x','d','v','2');
1198 }
1199 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1200 if (!interlaced) {
1201 if (rate == 24) tag = MKTAG('x','d','v','d');
1202 else if (rate == 25) tag = MKTAG('x','d','v','e');
1203 else if (rate == 30) tag = MKTAG('x','d','v','f');
1204 } else {
1205 if (rate == 25) tag = MKTAG('x','d','v','c');
1206 else if (rate == 30) tag = MKTAG('x','d','v','b');
1207 }
1208 }
1209 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1210 if (track->enc->width == 1280 && track->enc->height == 720) {
1211 if (!interlaced) {
1212 if (rate == 24) tag = MKTAG('x','d','5','4');
1213 else if (rate == 25) tag = MKTAG('x','d','5','5');
1214 else if (rate == 30) tag = MKTAG('x','d','5','1');
1215 else if (rate == 50) tag = MKTAG('x','d','5','a');
1216 else if (rate == 60) tag = MKTAG('x','d','5','9');
1217 }
1218 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1219 if (!interlaced) {
1220 if (rate == 24) tag = MKTAG('x','d','5','d');
1221 else if (rate == 25) tag = MKTAG('x','d','5','e');
1222 else if (rate == 30) tag = MKTAG('x','d','5','f');
1223 } else {
1224 if (rate == 25) tag = MKTAG('x','d','5','c');
1225 else if (rate == 30) tag = MKTAG('x','d','5','b');
1226 }
1227 }
1228 }
1229
1230 return tag;
1231 }
1232
1233 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1234 {
1235 int tag = track->enc->codec_tag;
1236 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1237 AVStream *st = track->st;
1238 int rate = av_q2d(find_fps(s, st));
1239
1240 if (!tag)
1241 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1242
1243 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1244 if (track->enc->width == 960 && track->enc->height == 720) {
1245 if (!interlaced) {
1246 if (rate == 24) tag = MKTAG('a','i','5','p');
1247 else if (rate == 25) tag = MKTAG('a','i','5','q');
1248 else if (rate == 30) tag = MKTAG('a','i','5','p');
1249 else if (rate == 50) tag = MKTAG('a','i','5','q');
1250 else if (rate == 60) tag = MKTAG('a','i','5','p');
1251 }
1252 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1253 if (!interlaced) {
1254 if (rate == 24) tag = MKTAG('a','i','5','3');
1255 else if (rate == 25) tag = MKTAG('a','i','5','2');
1256 else if (rate == 30) tag = MKTAG('a','i','5','3');
1257 } else {
1258 if (rate == 50) tag = MKTAG('a','i','5','5');
1259 else if (rate == 60) tag = MKTAG('a','i','5','6');
1260 }
1261 }
1262 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1263 if (track->enc->width == 1280 && track->enc->height == 720) {
1264 if (!interlaced) {
1265 if (rate == 24) tag = MKTAG('a','i','1','p');
1266 else if (rate == 25) tag = MKTAG('a','i','1','q');
1267 else if (rate == 30) tag = MKTAG('a','i','1','p');
1268 else if (rate == 50) tag = MKTAG('a','i','1','q');
1269 else if (rate == 60) tag = MKTAG('a','i','1','p');
1270 }
1271 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1272 if (!interlaced) {
1273 if (rate == 24) tag = MKTAG('a','i','1','3');
1274 else if (rate == 25) tag = MKTAG('a','i','1','2');
1275 else if (rate == 30) tag = MKTAG('a','i','1','3');
1276 } else {
1277 if (rate == 25) tag = MKTAG('a','i','1','5');
1278 else if (rate == 50) tag = MKTAG('a','i','1','5');
1279 else if (rate == 60) tag = MKTAG('a','i','1','6');
1280 }
1281 } else if ( track->enc->width == 4096 && track->enc->height == 2160
1282 || track->enc->width == 3840 && track->enc->height == 2160) {
1283 tag = MKTAG('a','i','v','x');
1284 }
1285 }
1286
1287 return tag;
1288 }
1289
1290 static const struct {
1291 enum AVPixelFormat pix_fmt;
1292 uint32_t tag;
1293 unsigned bps;
1294 } mov_pix_fmt_tags[] = {
1295 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1296 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1297 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1298 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1299 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1300 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1301 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1302 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1303 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1304 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1305 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1306 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1307 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1308 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1309 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1310 };
1311
1312 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1313 {
1314 int tag = track->enc->codec_tag;
1315 int i;
1316 enum AVPixelFormat pix_fmt;
1317
1318 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1319 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1320 tag = mov_pix_fmt_tags[i].tag;
1321 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1322 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1323 break;
1324 }
1325 }
1326
1327 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1328 track->enc->bits_per_coded_sample);
1329 if (tag == MKTAG('r','a','w',' ') &&
1330 track->enc->pix_fmt != pix_fmt &&
1331 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1332 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1333 av_get_pix_fmt_name(track->enc->pix_fmt));
1334 return tag;
1335 }
1336
1337 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1338 {
1339 int tag = track->enc->codec_tag;
1340
1341 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1342 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1343 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1344 track->enc->codec_id == AV_CODEC_ID_H263 ||
1345 track->enc->codec_id == AV_CODEC_ID_H264 ||
1346 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1347 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1348 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1349 tag = mov_get_dv_codec_tag(s, track);
1350 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1351 tag = mov_get_rawvideo_codec_tag(s, track);
1352 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1353 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1354 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1355 tag = mov_get_h264_codec_tag(s, track);
1356 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1357 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1358 if (!tag) { // if no mac fcc found, try with Microsoft tags
1359 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1360 if (tag)
1361 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1362 "the file may be unplayable!\n");
1363 }
1364 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1365 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1366 if (!tag) { // if no mac fcc found, try with Microsoft tags
1367 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1368 if (ms_tag) {
1369 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1370 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1371 "the file may be unplayable!\n");
1372 }
1373 }
1374 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1375 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1376 }
1377
1378 return tag;
1379 }
1380
1381 static const AVCodecTag codec_3gp_tags[] = {
1382 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1383 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1384 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1385 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1386 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1387 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1388 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1389 { AV_CODEC_ID_NONE, 0 },
1390 };
1391
1392 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1393 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1394 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1395 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1396 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1397 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1398 { AV_CODEC_ID_NONE, 0 },
1399 };
1400
1401 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1402 {
1403 int tag;
1404
1405 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1406 tag = mp4_get_codec_tag(s, track);
1407 else if (track->mode == MODE_ISM) {
1408 tag = mp4_get_codec_tag(s, track);
1409 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1410 tag = MKTAG('w', 'm', 'a', ' ');
1411 } else if (track->mode == MODE_IPOD)
1412 tag = ipod_get_codec_tag(s, track);
1413 else if (track->mode & MODE_3GP)
1414 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1415 else if (track->mode == MODE_F4V)
1416 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1417 else
1418 tag = mov_get_codec_tag(s, track);
1419
1420 return tag;
1421 }
1422
1423 /** Write uuid atom.
1424 * Needed to make file play in iPods running newest firmware
1425 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1426 */
1427 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1428 {
1429 avio_wb32(pb, 28);
1430 ffio_wfourcc(pb, "uuid");
1431 avio_wb32(pb, 0x6b6840f2);
1432 avio_wb32(pb, 0x5f244fc5);
1433 avio_wb32(pb, 0xba39a51b);
1434 avio_wb32(pb, 0xcf0323f3);
1435 avio_wb32(pb, 0x0);
1436 return 28;
1437 }
1438
1439 static const uint16_t fiel_data[] = {
1440 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1441 };
1442
1443 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1444 {
1445 unsigned mov_field_order = 0;
1446 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1447 mov_field_order = fiel_data[track->enc->field_order];
1448 else
1449 return 0;
1450 avio_wb32(pb, 10);
1451 ffio_wfourcc(pb, "fiel");
1452 avio_wb16(pb, mov_field_order);
1453 return 10;
1454 }
1455
1456 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1457 {
1458 int64_t pos = avio_tell(pb);
1459 avio_wb32(pb, 0); /* size */
1460 avio_wl32(pb, track->tag); // store it byteswapped
1461 avio_wb32(pb, 0); /* Reserved */
1462 avio_wb16(pb, 0); /* Reserved */
1463 avio_wb16(pb, 1); /* Data-reference index */
1464
1465 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1466 mov_write_esds_tag(pb, track);
1467 else if (track->enc->extradata_size)
1468 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1469
1470 return update_size(pb, pos);
1471 }
1472
1473 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1474 {
1475 AVRational sar;
1476 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1477 track->enc->sample_aspect_ratio.den, INT_MAX);
1478
1479 avio_wb32(pb, 16);
1480 ffio_wfourcc(pb, "pasp");
1481 avio_wb32(pb, sar.num);
1482 avio_wb32(pb, sar.den);
1483 return 16;
1484 }
1485
1486 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1487 {
1488 AVDictionaryEntry *encoder;
1489 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1490 || (track->enc->width == 1440 && track->enc->height == 1080)
1491 || (track->enc->width == 1920 && track->enc->height == 1080);
1492
1493 if (track->mode == MODE_MOV &&
1494 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1495 av_strlcpy(compressor_name, encoder->value, 32);
1496 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1497 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1498 AVStream *st = track->st;
1499 int rate = av_q2d(find_fps(NULL, st));
1500 av_strlcatf(compressor_name, len, "XDCAM");
1501 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1502 av_strlcatf(compressor_name, len, " HD422");
1503 } else if(track->enc->width == 1440) {
1504 av_strlcatf(compressor_name, len, " HD");
1505 } else
1506 av_strlcatf(compressor_name, len, " EX");
1507
1508 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1509
1510 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1511 }
1512 }
1513
1514 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1515 {
1516 int64_t pos = avio_tell(pb);
1517 char compressor_name[32] = { 0 };
1518
1519 avio_wb32(pb, 0); /* size */
1520 avio_wl32(pb, track->tag); // store it byteswapped
1521 avio_wb32(pb, 0); /* Reserved */
1522 avio_wb16(pb, 0); /* Reserved */
1523 avio_wb16(pb, 1); /* Data-reference index */
1524
1525 avio_wb16(pb, 0); /* Codec stream version */
1526 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1527 if (track->mode == MODE_MOV) {
1528 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1529 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1530 avio_wb32(pb, 0); /* Temporal Quality */
1531 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1532 } else {
1533 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1534 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1535 }
1536 } else {
1537 avio_wb32(pb, 0); /* Reserved */
1538 avio_wb32(pb, 0); /* Reserved */
1539 avio_wb32(pb, 0); /* Reserved */
1540 }
1541 avio_wb16(pb, track->enc->width); /* Video width */
1542 avio_wb16(pb, track->height); /* Video height */
1543 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1544 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1545 avio_wb32(pb, 0); /* Data size (= 0) */
1546 avio_wb16(pb, 1); /* Frame count (= 1) */
1547
1548 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1549 find_compressor(compressor_name, 32, track);
1550 avio_w8(pb, strlen(compressor_name));
1551 avio_write(pb, compressor_name, 31);
1552
1553 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1554 avio_wb16(pb, track->enc->bits_per_coded_sample);
1555 else
1556 avio_wb16(pb, 0x18); /* Reserved */
1557 avio_wb16(pb, 0xffff); /* Reserved */
1558 if (track->tag == MKTAG('m','p','4','v'))
1559 mov_write_esds_tag(pb, track);
1560 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1561 mov_write_d263_tag(pb);
1562 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1563 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1564 mov_write_extradata_tag(pb, track);
1565 avio_wb32(pb, 0);
1566 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1567 mov_write_avid_tag(pb, track);
1568 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1569 mov_write_hvcc_tag(pb, track);
1570 else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1571 mov_write_avcc_tag(pb, track);
1572 if (track->mode == MODE_IPOD)
1573 mov_write_uuid_tag_ipod(pb);
1574 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1575 mov_write_dvc1_tag(pb, track);
1576 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1577 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1578 /* Don't write any potential extradata here - the cropping
1579 * is signalled via the normal width/height fields. */
1580 } else if (track->vos_len > 0)
1581 mov_write_glbl_tag(pb, track);
1582
1583 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1584 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1585 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1586 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1587 mov_write_fiel_tag(pb, track);
1588
1589 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1590 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1591 mov_write_pasp_tag(pb, track);
1592 }
1593
1594 return update_size(pb, pos);
1595 }
1596
1597 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1598 {
1599 int64_t pos = avio_tell(pb);
1600 avio_wb32(pb, 0); /* size */
1601 ffio_wfourcc(pb, "rtp ");
1602 avio_wb32(pb, 0); /* Reserved */
1603 avio_wb16(pb, 0); /* Reserved */
1604 avio_wb16(pb, 1); /* Data-reference index */
1605
1606 avio_wb16(pb, 1); /* Hint track version */
1607 avio_wb16(pb, 1); /* Highest compatible version */
1608 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1609
1610 avio_wb32(pb, 12); /* size */
1611 ffio_wfourcc(pb, "tims");
1612 avio_wb32(pb, track->timescale);
1613
1614 return update_size(pb, pos);
1615 }
1616
1617 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1618 {
1619 uint64_t str_size =strlen(reel_name);
1620 int64_t pos = avio_tell(pb);
1621
1622 if (str_size >= UINT16_MAX){
1623 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1624 avio_wb16(pb, 0);
1625 return AVERROR(EINVAL);
1626 }
1627
1628 avio_wb32(pb, 0); /* size */
1629 ffio_wfourcc(pb, "name"); /* Data format */
1630 avio_wb16(pb, str_size); /* string size */
1631 avio_wb16(pb, track->language); /* langcode */
1632 avio_write(pb, reel_name, str_size); /* reel name */
1633 return update_size(pb,pos);
1634 }
1635
1636 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1637 {
1638 int64_t pos = avio_tell(pb);
1639 #if 1
1640 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1641 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1642 AVDictionaryEntry *t = NULL;
1643
1644 if (nb_frames > 255) {
1645 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1646 return AVERROR(EINVAL);
1647 }
1648
1649 avio_wb32(pb, 0); /* size */
1650 ffio_wfourcc(pb, "tmcd"); /* Data format */
1651 avio_wb32(pb, 0); /* Reserved */
1652 avio_wb32(pb, 1); /* Data reference index */
1653 avio_wb32(pb, 0); /* Flags */
1654 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1655 avio_wb32(pb, track->timescale); /* Timescale */
1656 avio_wb32(pb, frame_duration); /* Frame duration */
1657 avio_w8(pb, nb_frames); /* Number of frames */
1658 avio_w8(pb, 0); /* Reserved */
1659
1660 if (track->st)
1661 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1662
1663 if (t && utf8len(t->value))
1664 mov_write_source_reference_tag(pb, track, t->value);
1665 else
1666 avio_wb16(pb, 0); /* zero size */
1667 #else
1668
1669 avio_wb32(pb, 0); /* size */
1670 ffio_wfourcc(pb, "tmcd"); /* Data format */
1671 avio_wb32(pb, 0); /* Reserved */
1672 avio_wb32(pb, 1); /* Data reference index */
1673 if (track->enc->extradata_size)
1674 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1675 #endif
1676 return update_size(pb, pos);
1677 }
1678
1679 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1680 {
1681 int64_t pos = avio_tell(pb);
1682 avio_wb32(pb, 0); /* size */
1683 ffio_wfourcc(pb, "stsd");
1684 avio_wb32(pb, 0); /* version & flags */
1685 avio_wb32(pb, 1); /* entry count */
1686 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1687 mov_write_video_tag(pb, track);
1688 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1689 mov_write_audio_tag(pb, track);
1690 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1691 mov_write_subtitle_tag(pb, track);
1692 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1693 mov_write_rtp_tag(pb, track);
1694 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1695 mov_write_tmcd_tag(pb, track);
1696 return update_size(pb, pos);
1697 }
1698
1699 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1700 {
1701 MOVStts *ctts_entries;
1702 uint32_t entries = 0;
1703 uint32_t atom_size;
1704 int i;
1705
1706 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1707 ctts_entries[0].count = 1;
1708 ctts_entries[0].duration = track->cluster[0].cts;
1709 for (i = 1; i < track->entry; i++) {
1710 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1711 ctts_entries[entries].count++; /* compress */
1712 } else {
1713 entries++;
1714 ctts_entries[entries].duration = track->cluster[i].cts;
1715 ctts_entries[entries].count = 1;
1716 }
1717 }
1718 entries++; /* last one */
1719 atom_size = 16 + (entries * 8);
1720 avio_wb32(pb, atom_size); /* size */
1721 ffio_wfourcc(pb, "ctts");
1722 avio_wb32(pb, 0); /* version & flags */
1723 avio_wb32(pb, entries); /* entry count */
1724 for (i = 0; i < entries; i++) {
1725 avio_wb32(pb, ctts_entries[i].count);
1726 avio_wb32(pb, ctts_entries[i].duration);
1727 }
1728 av_free(ctts_entries);
1729 return atom_size;
1730 }
1731
1732 /* Time to sample atom */
1733 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1734 {
1735 MOVStts *stts_entries;
1736 uint32_t entries = -1;
1737 uint32_t atom_size;
1738 int i;
1739
1740 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1741 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1742 stts_entries[0].count = track->sample_count;
1743 stts_entries[0].duration = 1;
1744 entries = 1;
1745 } else {
1746 stts_entries = track->entry ?
1747 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1748 NULL;
1749 for (i = 0; i < track->entry; i++) {
1750 int duration = get_cluster_duration(track, i);
1751 if (i && duration == stts_entries[entries].duration) {
1752 stts_entries[entries].count++; /* compress */
1753 } else {
1754 entries++;
1755 stts_entries[entries].duration = duration;
1756 stts_entries[entries].count = 1;
1757 }
1758 }
1759 entries++; /* last one */
1760 }
1761 atom_size = 16 + (entries * 8);
1762 avio_wb32(pb, atom_size); /* size */
1763 ffio_wfourcc(pb, "stts");
1764 avio_wb32(pb, 0); /* version & flags */
1765 avio_wb32(pb, entries); /* entry count */
1766 for (i = 0; i < entries; i++) {
1767 avio_wb32(pb, stts_entries[i].count);
1768 avio_wb32(pb, stts_entries[i].duration);
1769 }
1770 av_free(stts_entries);
1771 return atom_size;
1772 }
1773
1774 static int mov_write_dref_tag(AVIOContext *pb)
1775 {
1776 avio_wb32(pb, 28); /* size */
1777 ffio_wfourcc(pb, "dref");
1778 avio_wb32(pb, 0); /* version & flags */
1779 avio_wb32(pb, 1); /* entry count */
1780
1781 avio_wb32(pb, 0xc); /* size */
1782 //FIXME add the alis and rsrc atom
1783 ffio_wfourcc(pb, "url ");
1784 avio_wb32(pb, 1); /* version & flags */
1785
1786 return 28;
1787 }
1788
1789 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1790 {
1791 int64_t pos = avio_tell(pb);
1792 avio_wb32(pb, 0); /* size */
1793 ffio_wfourcc(pb, "stbl");
1794 mov_write_stsd_tag(pb, track);
1795 mov_write_stts_tag(pb, track);
1796 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1797 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1798 track->has_keyframes && track->has_keyframes < track->entry)
1799 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1800 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1801 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1802 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1803 track->flags & MOV_TRACK_CTTS)
1804 mov_write_ctts_tag(pb, track);
1805 mov_write_stsc_tag(pb, track);
1806 mov_write_stsz_tag(pb, track);
1807 mov_write_stco_tag(pb, track);
1808 return update_size(pb, pos);
1809 }
1810
1811 static int mov_write_dinf_tag(AVIOContext *pb)
1812 {
1813 int64_t pos = avio_tell(pb);
1814 avio_wb32(pb, 0); /* size */
1815 ffio_wfourcc(pb, "dinf");
1816 mov_write_dref_tag(pb);
1817 return update_size(pb, pos);
1818 }
1819
1820 static int mov_write_nmhd_tag(AVIOContext *pb)
1821 {
1822 avio_wb32(pb, 12);
1823 ffio_wfourcc(pb, "nmhd");
1824 avio_wb32(pb, 0);
1825 return 12;
1826 }
1827
1828 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1829 {
1830 int64_t pos = avio_tell(pb);
1831 const char *font = "Lucida Grande";
1832 avio_wb32(pb, 0); /* size */
1833 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1834 avio_wb32(pb, 0); /* version & flags */
1835 avio_wb16(pb, 0); /* text font */
1836 avio_wb16(pb, 0); /* text face */
1837 avio_wb16(pb, 12); /* text size */
1838 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1839 avio_wb16(pb, 0x0000); /* text color (red) */
1840 avio_wb16(pb, 0x0000); /* text color (green) */
1841 avio_wb16(pb, 0x0000); /* text color (blue) */
1842 avio_wb16(pb, 0xffff); /* background color (red) */
1843 avio_wb16(pb, 0xffff); /* background color (green) */
1844 avio_wb16(pb, 0xffff); /* background color (blue) */
1845 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1846 avio_write(pb, font, strlen(font)); /* font name */
1847 return update_size(pb, pos);
1848 }
1849
1850 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1851 {
1852 int64_t pos = avio_tell(pb);
1853 avio_wb32(pb, 0); /* size */
1854 ffio_wfourcc(pb, "gmhd");
1855 avio_wb32(pb, 0x18); /* gmin size */
1856 ffio_wfourcc(pb, "gmin");/* generic media info */
1857 avio_wb32(pb, 0); /* version & flags */
1858 avio_wb16(pb, 0x40); /* graphics mode = */
1859 avio_wb16(pb, 0x8000); /* opColor (r?) */
1860 avio_wb16(pb, 0x8000); /* opColor (g?) */
1861 avio_wb16(pb, 0x8000); /* opColor (b?) */
1862 avio_wb16(pb, 0); /* balance */
1863 avio_wb16(pb, 0); /* reserved */
1864
1865 /*
1866 * This special text atom is required for
1867 * Apple Quicktime chapters. The contents
1868 * don't appear to be documented, so the
1869 * bytes are copied verbatim.
1870 */
1871 if (track->tag != MKTAG('c','6','0','8')) {
1872 avio_wb32(pb, 0x2C); /* size */
1873 ffio_wfourcc(pb, "text");
1874 avio_wb16(pb, 0x01);
1875 avio_wb32(pb, 0x00);
1876 avio_wb32(pb, 0x00);
1877 avio_wb32(pb, 0x00);
1878 avio_wb32(pb, 0x01);
1879 avio_wb32(pb, 0x00);
1880 avio_wb32(pb, 0x00);
1881 avio_wb32(pb, 0x00);
1882 avio_wb32(pb, 0x00004000);
1883 avio_wb16(pb, 0x0000);
1884 }
1885
1886 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1887 int64_t tmcd_pos = avio_tell(pb);
1888 avio_wb32(pb, 0); /* size */
1889 ffio_wfourcc(pb, "tmcd");
1890 mov_write_tcmi_tag(pb, track);
1891 update_size(pb, tmcd_pos);
1892 }
1893 return update_size(pb, pos);
1894 }
1895
1896 static int mov_write_smhd_tag(AVIOContext *pb)
1897 {
1898 avio_wb32(pb, 16); /* size */
1899 ffio_wfourcc(pb, "smhd");
1900 avio_wb32(pb, 0); /* version & flags */
1901 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1902 avio_wb16(pb, 0); /* reserved */
1903 return 16;
1904 }
1905
1906 static int mov_write_vmhd_tag(AVIOContext *pb)
1907 {
1908 avio_wb32(pb, 0x14); /* size (always 0x14) */
1909 ffio_wfourcc(pb, "vmhd");
1910 avio_wb32(pb, 0x01); /* version & flags */
1911 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1912 return 0x14;
1913 }
1914
1915 static int is_clcp_track(MOVTrack *track)
1916 {
1917 return track->tag == MKTAG('c','7','0','8') ||
1918 track->tag == MKTAG('c','6','0','8');
1919 }
1920
1921 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1922 {
1923 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1924 int64_t pos = avio_tell(pb);
1925
1926 hdlr = "dhlr";
1927 hdlr_type = "url ";
1928 descr = "DataHandler";
1929
1930 if (track) {
1931 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1932 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1933 hdlr_type = "vide";
1934 descr = "VideoHandler";
1935 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1936 hdlr_type = "soun";
1937 descr = "SoundHandler";
1938 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1939 if (is_clcp_track(track)) {
1940 hdlr_type = "clcp";
1941 descr = "ClosedCaptionHandler";
1942 } else {
1943 if (track->tag == MKTAG('t','x','3','g')) {
1944 hdlr_type = "sbtl";
1945 } else if (track->tag == MKTAG('m','p','4','s')) {
1946 hdlr_type = "subp";
1947 } else {
1948 hdlr_type = "text";
1949 }
1950 descr = "SubtitleHandler";
1951 }
1952 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1953 hdlr_type = "hint";
1954 descr = "HintHandler";
1955 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1956 hdlr_type = "tmcd";
1957 descr = "TimeCodeHandler";
1958 } else {
1959 char tag_buf[32];
1960 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1961 track->enc->codec_tag);
1962
1963 av_log(track->enc, AV_LOG_WARNING,
1964 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1965 tag_buf, track->enc->codec_tag);
1966 }
1967 if (track->st) {
1968 // hdlr.name is used by some players to identify the content title
1969 // of the track. So if an alternate handler description is
1970 // specified, use it.
1971 AVDictionaryEntry *t;
1972 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1973 if (t && utf8len(t->value))
1974 descr = t->value;
1975 }
1976 }
1977
1978 avio_wb32(pb, 0); /* size */
1979 ffio_wfourcc(pb, "hdlr");
1980 avio_wb32(pb, 0); /* Version & flags */
1981 avio_write(pb, hdlr, 4); /* handler */
1982 ffio_wfourcc(pb, hdlr_type); /* handler type */
1983 avio_wb32(pb, 0); /* reserved */
1984 avio_wb32(pb, 0); /* reserved */
1985 avio_wb32(pb, 0); /* reserved */
1986 if (!track || track->mode == MODE_MOV)
1987 avio_w8(pb, strlen(descr)); /* pascal string */
1988 avio_write(pb, descr, strlen(descr)); /* handler description */
1989 if (track && track->mode != MODE_MOV)
1990 avio_w8(pb, 0); /* c string */
1991 return update_size(pb, pos);
1992 }
1993
1994 static int mov_write_hmhd_tag(AVIOContext *pb)
1995 {
1996 /* This atom must be present, but leaving the values at zero
1997 * seems harmless. */
1998 avio_wb32(pb, 28); /* size */
1999 ffio_wfourcc(pb, "hmhd");
2000 avio_wb32(pb, 0); /* version, flags */
2001 avio_wb16(pb, 0); /* maxPDUsize */
2002 avio_wb16(pb, 0); /* avgPDUsize */
2003 avio_wb32(pb, 0); /* maxbitrate */
2004 avio_wb32(pb, 0); /* avgbitrate */
2005 avio_wb32(pb, 0); /* reserved */
2006 return 28;
2007 }
2008
2009 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
2010 {
2011 int64_t pos = avio_tell(pb);
2012 avio_wb32(pb, 0); /* size */
2013 ffio_wfourcc(pb, "minf");
2014 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2015 mov_write_vmhd_tag(pb);
2016 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2017 mov_write_smhd_tag(pb);
2018 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2019 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2020 mov_write_gmhd_tag(pb, track);
2021 } else {
2022 mov_write_nmhd_tag(pb);
2023 }
2024 } else if (track->tag == MKTAG('r','t','p',' ')) {
2025 mov_write_hmhd_tag(pb);
2026 } else if (track->tag == MKTAG('t','m','c','d')) {
2027 mov_write_gmhd_tag(pb, track);
2028 }
2029 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2030 mov_write_hdlr_tag(pb, NULL);
2031 mov_write_dinf_tag(pb);
2032 mov_write_stbl_tag(pb, track);
2033 return update_size(pb, pos);
2034 }
2035
2036 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2037 MOVTrack *track)
2038 {
2039 int version = track->track_duration < INT32_MAX ? 0 : 1;
2040
2041 if (track->mode == MODE_ISM)
2042 version = 1;
2043
2044 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2045 ffio_wfourcc(pb, "mdhd");
2046 avio_w8(pb, version);
2047 avio_wb24(pb, 0); /* flags */
2048 if (version == 1) {
2049 avio_wb64(pb, track->time);
2050 avio_wb64(pb, track->time);
2051 } else {
2052 avio_wb32(pb, track->time); /* creation time */
2053 avio_wb32(pb, track->time); /* modification time */
2054 }
2055 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2056 if (!track->entry && mov->mode == MODE_ISM)
2057 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2058 else if (!track->entry)
2059 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2060 else
2061 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2062 avio_wb16(pb, track->language); /* language */
2063 avio_wb16(pb, 0); /* reserved (quality) */
2064
2065 if (version != 0 && track->mode == MODE_MOV) {
2066 av_log(NULL, AV_LOG_ERROR,
2067 "FATAL error, file duration too long for timebase, this file will not be\n"
2068 "playable with quicktime. Choose a different timebase or a different\n"
2069 "container format\n");
2070 }
2071
2072 return 32;
2073 }
2074
2075 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2076 MOVTrack *track)
2077 {
2078 int64_t pos = avio_tell(pb);
2079 avio_wb32(pb, 0); /* size */
2080 ffio_wfourcc(pb, "mdia");
2081 mov_write_mdhd_tag(pb, mov, track);
2082 mov_write_hdlr_tag(pb, track);
2083 mov_write_minf_tag(pb, track);
2084 return update_size(pb, pos);
2085 }
2086
2087 /* transformation matrix
2088 |a b u|
2089 |c d v|
2090 |tx ty w| */
2091 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2092 int16_t d, int16_t tx, int16_t ty)
2093 {
2094 avio_wb32(pb, a << 16); /* 16.16 format */
2095 avio_wb32(pb, b << 16); /* 16.16 format */
2096 avio_wb32(pb, 0); /* u in 2.30 format */
2097 avio_wb32(pb, c << 16); /* 16.16 format */
2098 avio_wb32(pb, d << 16); /* 16.16 format */
2099 avio_wb32(pb, 0); /* v in 2.30 format */
2100 avio_wb32(pb, tx << 16); /* 16.16 format */
2101 avio_wb32(pb, ty << 16); /* 16.16 format */
2102 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2103 }
2104
2105 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2106 MOVTrack *track, AVStream *st)
2107 {
2108 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2109 track->timescale, AV_ROUND_UP);
2110 int version = duration < INT32_MAX ? 0 : 1;
2111 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2112 int rotation = 0;
2113 int group = 0;
2114
2115
2116 if (st) {
2117 if (mov->per_stream_grouping)
2118 group = st->index;
2119 else
2120 group = st->codec->codec_type;
2121 }
2122
2123 if (track->flags & MOV_TRACK_ENABLED)
2124 flags |= MOV_TKHD_FLAG_ENABLED;
2125
2126 if (track->mode == MODE_ISM)
2127 version = 1;
2128
2129 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2130 ffio_wfourcc(pb, "tkhd");
2131 avio_w8(pb, version);
2132 avio_wb24(pb, flags);
2133 if (version == 1) {
2134 avio_wb64(pb, track->time);
2135 avio_wb64(pb, track->time);
2136 } else {
2137 avio_wb32(pb, track->time); /* creation time */
2138 avio_wb32(pb, track->time); /* modification time */
2139 }
2140 avio_wb32(pb, track->track_id); /* track-id */
2141 avio_wb32(pb, 0); /* reserved */
2142 if (!track->entry && mov->mode == MODE_ISM)
2143 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2144 else if (!track->entry)
2145 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2146 else
2147 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2148
2149 avio_wb32(pb, 0); /* reserved */
2150 avio_wb32(pb, 0); /* reserved */
2151 avio_wb16(pb, 0); /* layer */
2152 avio_wb16(pb, group); /* alternate group) */
2153 /* Volume, only for audio */
2154 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2155 avio_wb16(pb, 0x0100);
2156 else
2157 avio_wb16(pb, 0);
2158 avio_wb16(pb, 0); /* reserved */
2159
2160 /* Matrix structure */
2161 if (st && st->metadata) {
2162 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2163 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2164 }
2165 if (rotation == 90) {
2166 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2167 } else if (rotation == 180) {
2168 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2169 } else if (rotation == 270) {
2170 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2171 } else {
2172 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2173 }
2174 /* Track width and height, for visual only */
2175 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2176 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2177 if (track->mode == MODE_MOV) {
2178 avio_wb32(pb, track->enc->width << 16);
2179 avio_wb32(pb, track->height << 16);
2180 } else {
2181 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2182 if (!sample_aspect_ratio || track->height != track->enc->height)
2183 sample_aspect_ratio = 1;
2184 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2185 avio_wb32(pb, track->height * 0x10000);
2186 }
2187 } else {
2188 avio_wb32(pb, 0);
2189 avio_wb32(pb, 0);
2190 }
2191 return 0x5c;
2192 }
2193
2194 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2195 {
2196 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2197 track->enc->sample_aspect_ratio.den);
2198
2199 int64_t pos = avio_tell(pb);
2200
2201 avio_wb32(pb, 0); /* size */
2202 ffio_wfourcc(pb, "tapt");
2203
2204 avio_wb32(pb, 20);
2205 ffio_wfourcc(pb, "clef");
2206 avio_wb32(pb, 0);
2207 avio_wb32(pb, width << 16);
2208 avio_wb32(pb, track->enc->height << 16);
2209
2210 avio_wb32(pb, 20);
2211 ffio_wfourcc(pb, "prof");
2212 avio_wb32(pb, 0);
2213 avio_wb32(pb, width << 16);
2214 avio_wb32(pb, track->enc->height << 16);
2215
2216 avio_wb32(pb, 20);
2217 ffio_wfourcc(pb, "enof");
2218 avio_wb32(pb, 0);
2219 avio_wb32(pb, track->enc->width << 16);
2220 avio_wb32(pb, track->enc->height << 16);
2221
2222 return update_size(pb, pos);
2223 }
2224
2225 // This box seems important for the psp playback ... without it the movie seems to hang
2226 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2227 MOVTrack *track)
2228 {
2229 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2230 track->timescale, AV_ROUND_UP);
2231 int version = duration < INT32_MAX ? 0 : 1;
2232 int entry_size, entry_count, size;
2233 int64_t delay, start_ct = track->cluster[0].cts;
2234 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
2235 track->timescale, AV_ROUND_DOWN);
2236 version |= delay < INT32_MAX ? 0 : 1;
2237
2238 entry_size = (version == 1) ? 20 : 12;
2239 entry_count = 1 + (delay > 0);
2240 size = 24 + entry_count * entry_size;
2241
2242 /* write the atom data */
2243 avio_wb32(pb, size);
2244 ffio_wfourcc(pb, "edts");
2245 avio_wb32(pb, size - 8);
2246 ffio_wfourcc(pb, "elst");
2247 avio_w8(pb, version);
2248 avio_wb24(pb, 0); /* flags */
2249
2250 avio_wb32(pb, entry_count);
2251 if (delay > 0) { /* add an empty edit to delay presentation */
2252 /* In the positive delay case, the delay includes the cts
2253 * offset, and the second edit list entry below trims out
2254 * the same amount from the actual content. This makes sure
2255 * that the offsetted last sample is included in the edit
2256 * list duration as well. */
2257 if (version == 1) {
2258 avio_wb64(pb, delay);
2259 avio_wb64(pb, -1);
2260 } else {
2261 avio_wb32(pb, delay);
2262 avio_wb32(pb, -1);
2263 }
2264 avio_wb32(pb, 0x00010000);
2265 } else {
2266 /* Avoid accidentally ending up with start_ct = -1 which has got a
2267 * special meaning. Normally start_ct should end up positive or zero
2268 * here, but use FFMIN in case dts is a a small positive integer
2269 * rounded to 0 when represented in MOV_TIMESCALE units. */
2270 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2271 start_ct = -FFMIN(track->cluster[0].dts, 0);
2272 /* Note, this delay is calculated from the pts of the first sample,
2273 * ensuring that we don't reduce the duration for cases with
2274 * dts<0 pts=0. */
2275 duration += delay;
2276 }
2277
2278 /* For fragmented files, we don't know the full length yet. Setting
2279 * duration to 0 allows us to only specify the offset, including
2280 * the rest of the content (from all future fragments) without specifying
2281 * an explicit duration. */
2282 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2283 duration = 0;
2284
2285 /* duration */
2286 if (version == 1) {
2287 avio_wb64(pb, duration);
2288 avio_wb64(pb, start_ct);
2289 } else {
2290 avio_wb32(pb, duration);
2291 avio_wb32(pb, start_ct);
2292 }
2293 avio_wb32(pb, 0x00010000);
2294 return size;
2295 }
2296
2297 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2298 {
2299 avio_wb32(pb, 20); // size
2300 ffio_wfourcc(pb, "tref");
2301 avio_wb32(pb, 12); // size (subatom)
2302 avio_wl32(pb, track->tref_tag);
2303 avio_wb32(pb, track->tref_id);
2304 return 20;
2305 }
2306
2307 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2308 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2309 {
2310 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2311 ffio_wfourcc(pb, "uuid");
2312 ffio_wfourcc(pb, "USMT");
2313 avio_wb32(pb, 0x21d24fce);
2314 avio_wb32(pb, 0xbb88695c);
2315 avio_wb32(pb, 0xfac9c740);
2316 avio_wb32(pb, 0x1c); // another size here!
2317 ffio_wfourcc(pb, "MTDT");
2318 avio_wb32(pb, 0x00010012);
2319 avio_wb32(pb, 0x0a);
2320 avio_wb32(pb, 0x55c40000);
2321 avio_wb32(pb, 0x1);
2322 avio_wb32(pb, 0x0);
2323 return 0x34;
2324 }
2325
2326 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2327 {
2328 AVFormatContext *ctx = track->rtp_ctx;
2329 char buf[1000] = "";
2330 int len;
2331
2332 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2333 NULL, NULL, 0, 0, ctx);
2334 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2335 len = strlen(buf);
2336
2337 avio_wb32(pb, len + 24);
2338 ffio_wfourcc(pb, "udta");
2339 avio_wb32(pb, len + 16);
2340 ffio_wfourcc(pb, "hnti");
2341 avio_wb32(pb, len + 8);
2342 ffio_wfourcc(pb, "sdp ");
2343 avio_write(pb, buf, len);
2344 return len + 24;
2345 }
2346
2347 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2348 const char *tag, const char *str)
2349 {
2350 int64_t pos = avio_tell(pb);
2351 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2352 if (!t || !utf8len(t->value))
2353 return 0;
2354
2355 avio_wb32(pb, 0); /* size */
2356 ffio_wfourcc(pb, tag); /* type */
2357 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2358 return update_size(pb, pos);
2359 }
2360
2361 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2362 AVStream *st)
2363 {
2364 AVIOContext *pb_buf;
2365 int ret, size;
2366 uint8_t *buf;
2367
2368 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2369 return 0;
2370
2371 ret = avio_open_dyn_buf(&pb_buf);
2372 if (ret < 0)
2373 return ret;
2374
2375 if (mov->mode & MODE_MP4)
2376 mov_write_track_metadata(pb_buf, st, "name", "title");
2377
2378 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2379 avio_wb32(pb, size + 8);
2380 ffio_wfourcc(pb, "udta");
2381 avio_write(pb, buf, size);
2382 }
2383 av_free(buf);
2384
2385 return 0;
2386 }
2387
2388 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2389 MOVTrack *track, AVStream *st)
2390 {
2391 int64_t pos = avio_tell(pb);
2392 avio_wb32(pb, 0); /* size */
2393 ffio_wfourcc(pb, "trak");
2394 mov_write_tkhd_tag(pb, mov, track, st);
2395
2396 av_assert2(mov->use_editlist >= 0);
2397
2398
2399 if (track->entry) {
2400 if (mov->use_editlist)
2401 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2402 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2403 av_log(mov->fc, AV_LOG_WARNING,
2404 "Not writing any edit list even though one would have been required\n");
2405 }
2406
2407 if (track->tref_tag)
2408 mov_write_tref_tag(pb, track);
2409 mov_write_mdia_tag(pb, mov, track);
2410 if (track->mode == MODE_PSP)
2411 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2412 if (track->tag == MKTAG('r','t','p',' '))
2413 mov_write_udta_sdp(pb, track);
2414 if (track->mode == MODE_MOV) {
2415 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2416 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2417 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2418 mov_write_tapt_tag(pb, track);
2419 }
2420 }
2421 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2422 mov_write_tapt_tag(pb, track);
2423 }
2424 }
2425 mov_write_track_udta_tag(pb, mov, st);
2426 return update_size(pb, pos);
2427 }
2428
2429 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2430 {
2431 int i, has_audio = 0, has_video = 0;
2432 int64_t pos = avio_tell(pb);
2433 int audio_profile = mov->iods_audio_profile;
2434 int video_profile = mov->iods_video_profile;
2435 for (i = 0; i < mov->nb_streams; i++) {
2436 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2437 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2438 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2439 }
2440 }
2441 if (audio_profile < 0)
2442 audio_profile = 0xFF - has_audio;
2443 if (video_profile < 0)
2444 video_profile = 0xFF - has_video;
2445 avio_wb32(pb, 0x0); /* size */
2446 ffio_wfourcc(pb, "iods");
2447 avio_wb32(pb, 0); /* version & flags */
2448 put_descr(pb, 0x10, 7);
2449 avio_wb16(pb, 0x004f);
2450 avio_w8(pb, 0xff);
2451 avio_w8(pb, 0xff);
2452 avio_w8(pb, audio_profile);
2453 avio_w8(pb, video_profile);
2454 avio_w8(pb, 0xff);
2455 return update_size(pb, pos);
2456 }
2457
2458 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2459 {
2460 avio_wb32(pb, 0x20); /* size */
2461 ffio_wfourcc(pb, "trex");
2462 avio_wb32(pb, 0); /* version & flags */
2463 avio_wb32(pb, track->track_id); /* track ID */
2464 avio_wb32(pb, 1); /* default sample description index */
2465 avio_wb32(pb, 0); /* default sample duration */
2466 avio_wb32(pb, 0); /* default sample size */
2467 avio_wb32(pb, 0); /* default sample flags */
2468 return 0;
2469 }
2470
2471 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2472 {
2473 int64_t pos = avio_tell(pb);
2474 int i;
2475 avio_wb32(pb, 0x0); /* size */
2476 ffio_wfourcc(pb, "mvex");
2477 for (i = 0; i < mov->nb_streams; i++)
2478 mov_write_trex_tag(pb, &mov->tracks[i]);
2479 return update_size(pb, pos);
2480 }
2481
2482 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2483 {
2484 int max_track_id = 1, i;
2485 int64_t max_track_len_temp, max_track_len = 0;
2486 int version;
2487
2488 for (i = 0; i < mov->nb_streams; i++) {
2489 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2490 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2491 MOV_TIMESCALE,
2492 mov->tracks[i].timescale,
2493 AV_ROUND_UP);
2494 if (max_track_len < max_track_len_temp)
2495 max_track_len = max_track_len_temp;
2496 if (max_track_id < mov->tracks[i].track_id)
2497 max_track_id = mov->tracks[i].track_id;
2498 }
2499 }
2500
2501 version = max_track_len < UINT32_MAX ? 0 : 1;
2502 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2503
2504 ffio_wfourcc(pb, "mvhd");
2505 avio_w8(pb, version);
2506 avio_wb24(pb, 0); /* flags */
2507 if (version == 1) {
2508 avio_wb64(pb, mov->time);
2509 avio_wb64(pb, mov->time);
2510 } else {
2511 avio_wb32(pb, mov->time); /* creation time */
2512 avio_wb32(pb, mov->time); /* modification time */
2513 }
2514 avio_wb32(pb, MOV_TIMESCALE);
2515 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2516
2517 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2518 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2519 avio_wb16(pb, 0); /* reserved */
2520 avio_wb32(pb, 0); /* reserved */
2521 avio_wb32(pb, 0); /* reserved */
2522
2523 /* Matrix structure */
2524 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2525
2526 avio_wb32(pb, 0); /* reserved (preview time) */
2527 avio_wb32(pb, 0); /* reserved (preview duration) */
2528 avio_wb32(pb, 0); /* reserved (poster time) */
2529 avio_wb32(pb, 0); /* reserved (selection time) */
2530 avio_wb32(pb, 0); /* reserved (selection duration) */
2531 avio_wb32(pb, 0); /* reserved (current time) */
2532 avio_wb32(pb, max_track_id + 1); /* Next track id */
2533 return 0x6c;
2534 }
2535
2536 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2537 AVFormatContext *s)
2538 {
2539 avio_wb32(pb, 33); /* size */
2540 ffio_wfourcc(pb, "hdlr");
2541 avio_wb32(pb, 0);
2542 avio_wb32(pb, 0);
2543 ffio_wfourcc(pb, "mdir");
2544 ffio_wfourcc(pb, "appl");
2545 avio_wb32(pb, 0);
2546 avio_wb32(pb, 0);
2547 avio_w8(pb, 0);
2548 return 33;
2549 }
2550
2551 /* helper function to write a data tag with the specified string as data */
2552 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2553 {
2554 if (long_style) {
2555 int size = 16 + strlen(data);
2556 avio_wb32(pb, size); /* size */
2557 ffio_wfourcc(pb, "data");
2558 avio_wb32(pb, 1);
2559 avio_wb32(pb, 0);
2560 avio_write(pb, data, strlen(data));
2561 return size;
2562 } else {
2563 if (!lang)
2564 lang = ff_mov_iso639_to_lang("und", 1);
2565 avio_wb16(pb, strlen(data)); /* string length */
2566 avio_wb16(pb, lang);
2567 avio_write(pb, data, strlen(data));
2568 return strlen(data) + 4;
2569 }
2570 }
2571
2572 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2573 const char *value, int lang, int long_style)
2574 {
2575 int size = 0;
2576 if (value && value[0]) {
2577 int64_t pos = avio_tell(pb);
2578 avio_wb32(pb, 0); /* size */
2579 ffio_wfourcc(pb, name);
2580 mov_write_string_data_tag(pb, value, lang, long_style);
2581 size = update_size(pb, pos);
2582 }
2583 return size;
2584 }
2585
2586 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2587 const char *name, const char *tag,
2588 int long_style)
2589 {
2590 int l, lang = 0, len, len2;
2591 AVDictionaryEntry *t, *t2 = NULL;
2592 char tag2[16];
2593
2594 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2595 return 0;
2596
2597 len = strlen(t->key);
2598 snprintf(tag2, sizeof(tag2), "%s-", tag);
2599 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2600 len2 = strlen(t2->key);
2601 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2602 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2603 lang = l;
2604 break;
2605 }
2606 }
2607 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2608 }
2609
2610 /* iTunes bpm number */
2611 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2612 {
2613 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2614 int size = 0, tmpo = t ? atoi(t->value) : 0;
2615 if (tmpo) {
2616 size = 26;
2617 avio_wb32(pb, size);
2618 ffio_wfourcc(pb, "tmpo");
2619 avio_wb32(pb, size-8); /* size */
2620 ffio_wfourcc(pb, "data");
2621 avio_wb32(pb, 0x15); //type specifier
2622 avio_wb32(pb, 0);
2623 avio_wb16(pb, tmpo); // data
2624 }
2625 return size;
2626 }
2627
2628 /* iTunes track or disc number */
2629 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2630 AVFormatContext *s, int disc)
2631 {
2632 AVDictionaryEntry *t = av_dict_get(s->metadata,
2633 disc ? "disc" : "track",
2634 NULL, 0);
2635 int size = 0, track = t ? atoi(t->value) : 0;
2636 if (track) {
2637 int tracks = 0;
2638 char *slash = strchr(t->value, '/');
2639 if (slash)
2640 tracks = atoi(slash + 1);
2641 avio_wb32(pb, 32); /* size */
2642 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2643 avio_wb32(pb, 24); /* size */
2644 ffio_wfourcc(pb, "data");
2645 avio_wb32(pb, 0); // 8 bytes empty
2646 avio_wb32(pb, 0);
2647 avio_wb16(pb, 0); // empty
2648 avio_wb16(pb, track); // track / disc number
2649 avio_wb16(pb, tracks); // total track / disc number
2650 avio_wb16(pb, 0); // empty
2651 size = 32;
2652 }
2653 return size;
2654 }
2655
2656 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2657 const char *name, const char *tag,
2658 int len)
2659 {
2660 AVDictionaryEntry *t = NULL;
2661 uint8_t num;
2662 int size = 24 + len;
2663
2664 if (len != 1 && len != 4)
2665 return -1;
2666
2667 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2668 return 0;
2669 num = atoi(t->value);
2670
2671 avio_wb32(pb, size);
2672 ffio_wfourcc(pb, name);
2673 avio_wb32(pb, size - 8);
2674 ffio_wfourcc(pb, "data");
2675 avio_wb32(pb, 0x15);
2676 avio_wb32(pb, 0);
2677 if (len==4) avio_wb32(pb, num);
2678 else avio_w8 (pb, num);
2679
2680 return size;
2681 }
2682
2683 /* iTunes meta data list */
2684 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2685 AVFormatContext *s)
2686 {
2687 int64_t pos = avio_tell(pb);
2688 avio_wb32(pb, 0); /* size */
2689 ffio_wfourcc(pb, "ilst");
2690 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2691 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2692 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2693 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2694 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2695 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2696 if (!mov->exact &&
2697 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2698 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2699 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2700 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2701 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2702 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2703 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2704 mov_write_string_metadata(s, pb, "desc", "description",1);
2705 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2706 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2707 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2708 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2709 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2710 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2711 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2712 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2713 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2714 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2715 mov_write_trkn_tag(pb, mov, s, 0); // track number
2716 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2717 mov_write_tmpo_tag(pb, s);
2718 return update_size(pb, pos);
2719 }
2720
2721 /* iTunes meta data tag */
2722 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2723 AVFormatContext *s)
2724 {
2725 int size = 0;
2726 int64_t pos = avio_tell(pb);
2727 avio_wb32(pb, 0); /* size */
2728 ffio_wfourcc(pb, "meta");
2729 avio_wb32(pb, 0);
2730 mov_write_itunes_hdlr_tag(pb, mov, s);
2731 mov_write_ilst_tag(pb, mov, s);
2732 size = update_size(pb, pos);
2733 return size;
2734 }
2735
2736 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2737 const char *name, const char *key)
2738 {
2739 int len;
2740 AVDictionaryEntry *t;
2741
2742 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2743 return 0;
2744
2745 len = strlen(t->value);
2746 if (len > 0) {
2747 int size = len + 8;
2748 avio_wb32(pb, size);
2749 ffio_wfourcc(pb, name);
2750 avio_write(pb, t->value, len);
2751 return size;
2752 }
2753 return 0;
2754 }
2755
2756 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2757 {
2758 int val;
2759 while (*b) {
2760 GET_UTF8(val, *b++, return -1;)
2761 avio_wb16(pb, val);
2762 }
2763 avio_wb16(pb, 0x00);
2764 return 0;
2765 }
2766
2767 static uint16_t language_code(const char *str)
2768 {
2769 return (((str[0] - 0x60) & 0x1F) << 10) +
2770 (((str[1] - 0x60) & 0x1F) << 5) +
2771 (( str[2] - 0x60) & 0x1F);
2772 }
2773
2774 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2775 const char *tag, const char *str)
2776 {
2777 int64_t pos = avio_tell(pb);
2778 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2779 if (!t || !utf8len(t->value))
2780 return 0;
2781 avio_wb32(pb, 0); /* size */
2782 ffio_wfourcc(pb, tag); /* type */
2783 avio_wb32(pb, 0); /* version + flags */
2784 if (!strcmp(tag, "yrrc"))
2785 avio_wb16(pb, atoi(t->value));
2786 else {
2787 avio_wb16(pb, language_code("eng")); /* language */
2788 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2789 if (!strcmp(tag, "albm") &&
2790 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2791 avio_w8(pb, atoi(t->value));
2792 }
2793 return update_size(pb, pos);
2794 }
2795
2796 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2797 {
2798 int64_t pos = avio_tell(pb);
2799 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2800
2801 avio_wb32(pb, 0); // size
2802 ffio_wfourcc(pb, "chpl");
2803 avio_wb32(pb, 0x01000000); // version + flags
2804 avio_wb32(pb, 0); // unknown
2805 avio_w8(pb, nb_chapters);
2806
2807 for (i = 0; i < nb_chapters; i++) {
2808 AVChapter *c = s->chapters[i];
2809 AVDictionaryEntry *t;
2810 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2811
2812 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2813 int len = FFMIN(strlen(t->value), 255);
2814 avio_w8(pb, len);
2815 avio_write(pb, t->value, len);
2816 } else
2817 avio_w8(pb, 0);
2818 }
2819 return update_size(pb, pos);
2820 }
2821
2822 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2823 AVFormatContext *s)
2824 {
2825 AVIOContext *pb_buf;
2826 int ret, size;
2827 uint8_t *buf;
2828
2829 ret = avio_open_dyn_buf(&pb_buf);
2830 if (ret < 0)
2831 return ret;
2832
2833 if (mov->mode & MODE_3GP) {
2834 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2835 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2836 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2837 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2838 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2839 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2840 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2841 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2842 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2843 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2844 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2845 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2846 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2847 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2848 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2849 // currently ignored by mov.c
2850 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2851 // add support for libquicktime, this atom is also actually read by mov.c
2852 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2853 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2854 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2855 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2856 } else {
2857 /* iTunes meta data */
2858 mov_write_meta_tag(pb_buf, mov, s);
2859 }
2860
2861 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2862 mov_write_chpl_tag(pb_buf, s);
2863
2864 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2865 avio_wb32(pb, size + 8);
2866 ffio_wfourcc(pb, "udta");
2867 avio_write(pb, buf, size);
2868 }
2869 av_free(buf);
2870
2871 return 0;
2872 }
2873
2874 static void mov_write_psp_udta_tag(AVIOContext *pb,
2875 const char *str, const char *lang, int type)
2876 {
2877 int len = utf8len(str) + 1;
2878 if (len <= 0)
2879 return;
2880 avio_wb16(pb, len * 2 + 10); /* size */
2881 avio_wb32(pb, type); /* type */
2882 avio_wb16(pb, language_code(lang)); /* language */
2883 avio_wb16(pb, 0x01); /* ? */
2884 ascii_to_wc(pb, str);
2885 }
2886
2887 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2888 {
2889 MOVMuxContext *mov = s->priv_data;
2890 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2891 int64_t pos, pos2;
2892
2893 if (title) {
2894 pos = avio_tell(pb);
2895 avio_wb32(pb, 0); /* size placeholder*/
2896 ffio_wfourcc(pb, "uuid");
2897 ffio_wfourcc(pb, "USMT");
2898 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2899 avio_wb32(pb, 0xbb88695c);
2900 avio_wb32(pb, 0xfac9c740);
2901
2902 pos2 = avio_tell(pb);
2903 avio_wb32(pb, 0); /* size placeholder*/
2904 ffio_wfourcc(pb, "MTDT");
2905 avio_wb16(pb, 4);
2906
2907 // ?
2908 avio_wb16(pb, 0x0C); /* size */
2909 avio_wb32(pb, 0x0B); /* type */
2910 avio_wb16(pb, language_code("und")); /* language */
2911 avio_wb16(pb, 0x0); /* ? */
2912 avio_wb16(pb, 0x021C); /* data */
2913
2914 if (!mov->exact)
2915 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2916 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2917 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2918
2919 update_size(pb, pos2);
2920 return update_size(pb, pos);
2921 }
2922
2923 return 0;
2924 }
2925
2926 static void build_chunks(MOVTrack *trk)
2927 {
2928 int i;
2929 MOVIentry *chunk = &trk->cluster[0];
2930 uint64_t chunkSize = chunk->size;
2931 chunk->chunkNum = 1;
2932 if (trk->chunkCount)
2933 return;
2934 trk->chunkCount = 1;
2935 for (i = 1; i<trk->entry; i++){
2936 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2937 chunkSize + trk->cluster[i].size < (1<<20)){
2938 chunkSize += trk->cluster[i].size;
2939 chunk->samples_in_chunk += trk->cluster[i].entries;
2940 } else {
2941 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2942 chunk=&trk->cluster[i];
2943 chunkSize = chunk->size;
2944 trk->chunkCount++;
2945 }
2946 }
2947 }
2948
2949 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2950 AVFormatContext *s)
2951 {
2952 int i;
2953 int64_t pos = avio_tell(pb);
2954 avio_wb32(pb, 0); /* size placeholder*/
2955 ffio_wfourcc(pb, "moov");
2956
2957 for (i = 0; i < mov->nb_streams; i++) {
2958 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2959 continue;
2960
2961 mov->tracks[i].time = mov->time;
2962 mov->tracks[i].track_id = i + 1;
2963
2964 if (mov->tracks[i].entry)
2965 build_chunks(&mov->tracks[i]);
2966 }
2967
2968 if (mov->chapter_track)
2969 for (i = 0; i < s->nb_streams; i++) {
2970 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2971 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2972 }
2973 for (i = 0; i < mov->nb_streams; i++) {
2974 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2975 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2976 mov->tracks[i].tref_id =
2977 mov->tracks[mov->tracks[i].src_track].track_id;
2978 }
2979 }
2980 for (i = 0; i < mov->nb_streams; i++) {
2981 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2982 int src_trk = mov->tracks[i].src_track;
2983 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2984 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2985 //src_trk may have a different timescale than the tmcd track
2986 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2987 mov->tracks[i].timescale,
2988 mov->tracks[src_trk].timescale);
2989 }
2990 }
2991
2992 mov_write_mvhd_tag(pb, mov);
2993 if (mov->mode != MODE_MOV && !mov->iods_skip)
2994 mov_write_iods_tag(pb, mov);
2995 for (i = 0; i < mov->nb_streams; i++) {
2996 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2997 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2998 }
2999 }
3000 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3001 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3002
3003 if (mov->mode == MODE_PSP)
3004 mov_write_uuidusmt_tag(pb, s);
3005 else
3006 mov_write_udta_tag(pb, mov, s);
3007
3008 return update_size(pb, pos);
3009 }
3010
3011 static void param_write_int(AVIOContext *pb, const char *name, int value)
3012 {
3013 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3014 }
3015
3016 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3017 {
3018 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3019 }
3020
3021 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3022 {
3023 char buf[150];
3024 len = FFMIN(sizeof(buf) / 2 - 1, len);
3025 ff_data_to_hex(buf, value, len, 0);
3026 buf[2 * len] = '\0';
3027 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3028 }
3029
3030 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3031 {
3032 int64_t pos = avio_tell(pb);
3033 int i;
3034 static const uint8_t uuid[] = {
3035 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3036 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3037 };
3038
3039 avio_wb32(pb, 0);
3040 ffio_wfourcc(pb, "uuid");
3041 avio_write(pb, uuid, sizeof(uuid));
3042 avio_wb32(pb, 0);
3043
3044 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3045 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3046 avio_printf(pb, "<head>\n");
3047 if (!mov->exact)
3048 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3049 LIBAVFORMAT_IDENT);
3050 avio_printf(pb, "</head>\n");
3051 avio_printf(pb, "<body>\n");
3052 avio_printf(pb, "<switch>\n");
3053 for (i = 0; i < mov->nb_streams; i++) {
3054 MOVTrack *track = &mov->tracks[i];
3055 const char *type;
3056 /* track->track_id is initialized in write_moov, and thus isn't known
3057 * here yet */
3058 int track_id = i + 1;
3059
3060 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3061 type = "video";
3062 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3063 type = "audio";
3064 } else {
3065 continue;
3066 }
3067 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3068 track->enc->bit_rate);
3069 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3070 param_write_int(pb, "trackID", track_id);
3071 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3072 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3073 uint8_t *ptr;
3074 int size = track->enc->extradata_size;
3075 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3076 &size)) {
3077 param_write_hex(pb, "CodecPrivateData",
3078 ptr ? ptr : track->enc->extradata,
3079 size);
3080 av_free(ptr);
3081 }
3082 param_write_string(pb, "FourCC", "H264");
3083 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3084 param_write_string(pb, "FourCC", "WVC1");
3085 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3086 track->enc->extradata_size);
3087 }
3088 param_write_int(pb, "MaxWidth", track->enc->width);
3089 param_write_int(pb, "MaxHeight", track->enc->height);
3090 param_write_int(pb, "DisplayWidth", track->enc->width);
3091 param_write_int(pb, "DisplayHeight", track->enc->height);
3092 } else {
3093 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3094 param_write_string(pb, "FourCC", "AACL");
3095 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3096 param_write_string(pb, "FourCC", "WMAP");
3097 }
3098 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3099 track->enc->extradata_size);
3100 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3101 track->enc->codec_id));
3102 param_write_int(pb, "Channels", track->enc->channels);
3103 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3104 param_write_int(pb, "BitsPerSample", 16);
3105 param_write_int(pb, "PacketSize", track->enc->block_align ?
3106 track->enc->block_align : 4);
3107 }
3108 avio_printf(pb, "</%s>\n", type);
3109 }
3110 avio_printf(pb, "</switch>\n");
3111 avio_printf(pb, "</body>\n");
3112 avio_printf(pb, "</smil>\n");
3113
3114 return update_size(pb, pos);
3115 }
3116
3117 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3118 {
3119 avio_wb32(pb, 16);
3120 ffio_wfourcc(pb, "mfhd");
3121 avio_wb32(pb, 0);
3122 avio_wb32(pb, mov->fragments);
3123 return 0;
3124 }
3125
3126 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3127 MOVTrack *track, int64_t moof_offset)
3128 {
3129 int64_t pos = avio_tell(pb);
3130 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3131 MOV_TFHD_BASE_DATA_OFFSET;
3132 if (!track->entry) {
3133 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3134 } else {
3135 flags |= MOV_TFHD_DEFAULT_FLAGS;
3136 }
3137 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3138 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3139 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3140 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3141 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3142 }
3143
3144 /* Don't set a default sample size, the silverlight player refuses
3145 * to play files with that set. Don't set a default sample duration,
3146 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3147 * file format says it MUST NOT be set. */
3148 if (track->mode == MODE_ISM)
3149 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3150 MOV_TFHD_BASE_DATA_OFFSET);
3151
3152 avio_wb32(pb, 0); /* size placeholder */
3153 ffio_wfourcc(pb, "tfhd");
3154 avio_w8(pb, 0); /* version */
3155 avio_wb24(pb, flags);
3156
3157 avio_wb32(pb, track->track_id); /* track-id */
3158 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3159 avio_wb64(pb, moof_offset);
3160 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3161 track->default_duration = get_cluster_duration(track, 0);
3162 avio_wb32(pb, track->default_duration);
3163 }
3164 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3165 track->default_size = track->entry ? track->cluster[0].size : 1;
3166 avio_wb32(pb, track->default_size);
3167 } else
3168 track->default_size = -1;
3169
3170 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3171 track->default_sample_flags =
3172 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3173 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3174 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3175 avio_wb32(pb, track->default_sample_flags);
3176 }
3177
3178 return update_size(pb, pos);
3179 }
3180
3181 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3182 {
3183 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3184 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3185 }
3186
3187 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3188 MOVTrack *track, int moof_size)
3189 {
3190 int64_t pos = avio_tell(pb);
3191 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3192 int i;
3193
3194 for (i = 0; i < track->entry; i++) {
3195 if (get_cluster_duration(track, i) != track->default_duration)
3196 flags |= MOV_TRUN_SAMPLE_DURATION;
3197 if (track->cluster[i].size != track->default_size)
3198 flags |= MOV_TRUN_SAMPLE_SIZE;
3199 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3200 flags |= MOV_TRUN_SAMPLE_FLAGS;
3201 }
3202 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3203 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3204 if (track->flags & MOV_TRACK_CTTS)
3205 flags |= MOV_TRUN_SAMPLE_CTS;
3206
3207 avio_wb32(pb, 0); /* size placeholder */
3208 ffio_wfourcc(pb, "trun");
3209 avio_w8(pb, 0); /* version */
3210 avio_wb24(pb, flags);
3211
3212 avio_wb32(pb, track->entry); /* sample count */
3213 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3214 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3215 !mov->first_trun)
3216 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3217 else
3218 avio_wb32(pb, moof_size + 8 + track->data_offset +
3219 track->cluster[0].pos); /* data offset */
3220 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3221 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3222
3223 for (i = 0; i < track->entry; i++) {
3224 if (flags & MOV_TRUN_SAMPLE_DURATION)
3225 avio_wb32(pb, get_cluster_duration(track, i));
3226 if (flags & MOV_TRUN_SAMPLE_SIZE)
3227 avio_wb32(pb, track->cluster[i].size);
3228 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3229 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3230 if (flags & MOV_TRUN_SAMPLE_CTS)
3231 avio_wb32(pb, track->cluster[i].cts);
3232 }
3233
3234 mov->first_trun = 0;
3235 return update_size(pb, pos);
3236 }
3237
3238 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3239 {
3240 int64_t pos = avio_tell(pb);
3241 static const uint8_t uuid[] = {
3242 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3243 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3244 };
3245
3246 avio_wb32(pb, 0); /* size placeholder */
3247 ffio_wfourcc(pb, "uuid");
3248 avio_write(pb, uuid, sizeof(uuid));
3249 avio_w8(pb, 1);
3250 avio_wb24(pb, 0);
3251 avio_wb64(pb, track->frag_start);
3252 avio_wb64(pb, track->start_dts + track->track_duration -
3253 track->cluster[0].dts);
3254
3255 return update_size(pb, pos);
3256 }
3257
3258 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3259 MOVTrack *track, int entry)
3260 {
3261 int n = track->nb_frag_info - 1 - entry, i;
3262 int size = 8 + 16 + 4 + 1 + 16*n;
3263 static const uint8_t uuid[] = {
3264 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3265 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3266 };
3267
3268 if (entry < 0)
3269 return 0;
3270
3271 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3272 avio_wb32(pb, size);
3273 ffio_wfourcc(pb, "uuid");
3274 avio_write(pb, uuid, sizeof(uuid));
3275 avio_w8(pb, 1);
3276 avio_wb24(pb, 0);
3277 avio_w8(pb, n);
3278 for (i = 0; i < n; i++) {
3279 int index = entry + 1 + i;
3280 avio_wb64(pb, track->frag_info[index].time);
3281 avio_wb64(pb, track->frag_info[index].duration);
3282 }
3283 if (n < mov->ism_lookahead) {
3284 int free_size = 16 * (mov->ism_lookahead - n);
3285 avio_wb32(pb, free_size);
3286 ffio_wfourcc(pb, "free");
3287 ffio_fill(pb, 0, free_size - 8);
3288 }
3289
3290 return 0;
3291 }
3292
3293 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3294 MOVTrack *track)
3295 {
3296 int64_t pos = avio_tell(pb);
3297 int i;
3298 for (i = 0; i < mov->ism_lookahead; i++) {
3299 /* Update the tfrf tag for the last ism_lookahead fragments,
3300 * nb_frag_info - 1 is the next fragment to be written. */
3301 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3302 }
3303 avio_seek(pb, pos, SEEK_SET);
3304 return 0;
3305 }
3306
3307 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3308 int size)
3309 {
3310 int i;
3311 for (i = 0; i < mov->nb_streams; i++) {
3312 MOVTrack *track = &mov->tracks[i];
3313 MOVFragmentInfo *info;
3314 if ((tracks >= 0 && i != tracks) || !track->entry)
3315 continue;
3316 track->nb_frag_info++;
3317 if (track->nb_frag_info >= track->frag_info_capacity) {
3318 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3319 if (av_reallocp_array(&track->frag_info,
3320 new_capacity,
3321 sizeof(*track->frag_info)))
3322 return AVERROR(ENOMEM);
3323 track->frag_info_capacity = new_capacity;
3324 }
3325 info = &track->frag_info[track->nb_frag_info - 1];
3326 info->offset = avio_tell(pb);
3327 info->size = size;
3328 // Try to recreate the original pts for the first packet
3329 // from the fields we have stored
3330 info->time = track->start_dts + track->frag_start +
3331 track->cluster[0].cts;
3332 // If the pts is less than zero, we will have trimmed
3333 // away parts of the media track using an edit list,
3334 // and the corresponding start presentation time is zero.
3335 if (info->time < 0)
3336 info->time = 0;
3337 info->duration = track->start_dts + track->track_duration -
3338 track->cluster[0].dts;
3339 info->tfrf_offset = 0;
3340 mov_write_tfrf_tags(pb, mov, track);
3341 }
3342 return 0;
3343 }
3344
3345 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3346 {
3347 int64_t pos = avio_tell(pb);
3348
3349 avio_wb32(pb, 0); /* size */
3350 ffio_wfourcc(pb, "tfdt");
3351 avio_w8(pb, 1); /* version */
3352 avio_wb24(pb, 0);
3353 avio_wb64(pb, track->frag_start);
3354 return update_size(pb, pos);
3355 }
3356
3357 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3358 MOVTrack *track, int64_t moof_offset,
3359 int moof_size)
3360 {
3361 int64_t pos = avio_tell(pb);
3362 avio_wb32(pb, 0); /* size placeholder */
3363 ffio_wfourcc(pb, "traf");
3364
3365 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3366 if (mov->mode != MODE_ISM)
3367 mov_write_tfdt_tag(pb, track);
3368 mov_write_trun_tag(pb, mov, track, moof_size);
3369 if (mov->mode == MODE_ISM) {
3370 mov_write_tfxd_tag(pb, track);
3371
3372 if (mov->ism_lookahead) {
3373 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3374
3375 if (track->nb_frag_info > 0) {
3376 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3377 if (!info->tfrf_offset)
3378 info->tfrf_offset = avio_tell(pb);
3379 }
3380 avio_wb32(pb, 8 + size);
3381 ffio_wfourcc(pb, "free");
3382 for (i = 0; i < size; i++)
3383 avio_w8(pb, 0);
3384 }
3385 }
3386
3387 return update_size(pb, pos);
3388 }
3389
3390 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3391 int tracks, int moof_size)
3392 {
3393 int64_t pos = avio_tell(pb);
3394 int i;
3395
3396 avio_wb32(pb, 0); /* size placeholder */
3397 ffio_wfourcc(pb, "moof");
3398 mov->first_trun = 1;
3399
3400 mov_write_mfhd_tag(pb, mov);
3401 for (i = 0; i < mov->nb_streams; i++) {
3402 MOVTrack *track = &mov->tracks[i];
3403 if (tracks >= 0 && i != tracks)
3404 continue;
3405 if (!track->entry)
3406 continue;
3407 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3408 }
3409
3410 return update_size(pb, pos);
3411 }
3412
3413 static int mov_write_sidx_tag(AVIOContext *pb,
3414 MOVTrack *track, int ref_size, int total_sidx_size)
3415 {
3416 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3417 int64_t presentation_time, duration, offset;
3418 int starts_with_SAP, i, entries;
3419
3420 if (track->entry) {
3421 entries = 1;
3422 presentation_time = track->start_dts + track->frag_start +
3423 track->cluster[0].cts;
3424 duration = track->start_dts + track->track_duration -
3425 track->cluster[0].dts;
3426 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3427 } else {
3428 entries = track->nb_frag_info;
3429 presentation_time = track->frag_info[0].time;
3430 }
3431
3432 // pts<0 should be cut away using edts
3433 if (presentation_time < 0)
3434 presentation_time = 0;
3435
3436 avio_wb32(pb, 0); /* size */
3437 ffio_wfourcc(pb, "sidx");
3438 avio_w8(pb, 1); /* version */
3439 avio_wb24(pb, 0);
3440 avio_wb32(pb, track->track_id); /* reference_ID */
3441 avio_wb32(pb, track->timescale); /* timescale */
3442 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3443 offset_pos = avio_tell(pb);
3444 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3445 avio_wb16(pb, 0); /* reserved */
3446
3447 avio_wb16(pb, entries); /* reference_count */
3448 for (i = 0; i < entries; i++) {
3449 if (!track->entry) {
3450 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3451 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3452 }
3453 duration = track->frag_info[i].duration;
3454 ref_size = track->frag_info[i].size;
3455 starts_with_SAP = 1;
3456 }
3457 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3458 avio_wb32(pb, duration); /* subsegment_duration */
3459 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3460 }
3461
3462 end_pos = avio_tell(pb);
3463 offset = pos + total_sidx_size - end_pos;
3464 avio_seek(pb, offset_pos, SEEK_SET);
3465 avio_wb64(pb, offset);
3466 avio_seek(pb, end_pos, SEEK_SET);
3467 return update_size(pb, pos);
3468 }
3469
3470 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3471 int tracks, int ref_size)
3472 {
3473 int i, round, ret;
3474 AVIOContext *avio_buf;
3475 int total_size = 0;
3476 for (round = 0; round < 2; round++) {
3477 // First run one round to calculate the total size of all
3478 // sidx atoms.
3479 // This would be much simpler if we'd only write one sidx
3480 // atom, for the first track in the moof.
3481 if (round == 0) {
3482 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3483 return ret;
3484 } else {
3485 avio_buf = pb;
3486 }
3487 for (i = 0; i < mov->nb_streams; i++) {
3488 MOVTrack *track = &mov->tracks[i];
3489 if (tracks >= 0 && i != tracks)
3490 continue;
3491 // When writing a sidx for the full file, entry is 0, but
3492 // we want to include all tracks. ref_size is 0 in this case,
3493 // since we read it from frag_info instead.
3494 if (!track->entry && ref_size > 0)
3495 continue;
3496 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3497 total_size);
3498 }
3499 if (round == 0)
3500 total_size = ffio_close_null_buf(avio_buf);
3501 }
3502 return 0;
3503 }
3504
3505 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3506 int64_t mdat_size)
3507 {
3508 AVIOContext *avio_buf;
3509 int ret, moof_size;
3510
3511 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3512 return ret;
3513 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3514 moof_size = ffio_close_null_buf(avio_buf);
3515
3516 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
3517 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3518
3519 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3520 return ret;
3521
3522 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3523 }
3524
3525 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3526 {
3527 int64_t pos = avio_tell(pb);
3528 int i;
3529
3530 avio_wb32(pb, 0); /* size placeholder */
3531 ffio_wfourcc(pb, "tfra");
3532 avio_w8(pb, 1); /* version */
3533 avio_wb24(pb, 0);
3534
3535 avio_wb32(pb, track->track_id);
3536 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3537 avio_wb32(pb, track->nb_frag_info);
3538 for (i = 0; i < track->nb_frag_info; i++) {
3539 avio_wb64(pb, track->frag_info[i].time);
3540 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3541 avio_w8(pb, 1); /* traf number */
3542 avio_w8(pb, 1); /* trun number */
3543 avio_w8(pb, 1); /* sample number */
3544 }
3545
3546 return update_size(pb, pos);
3547 }
3548
3549 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3550 {
3551 int64_t pos = avio_tell(pb);
3552 int i;
3553
3554 avio_wb32(pb, 0); /* size placeholder */
3555 ffio_wfourcc(pb, "mfra");
3556 /* An empty mfra atom is enough to indicate to the publishing point that
3557 * the stream has ended. */
3558 if (mov->flags & FF_MOV_FLAG_ISML)
3559 return update_size(pb, pos);
3560
3561 for (i = 0; i < mov->nb_streams; i++) {
3562 MOVTrack *track = &mov->tracks[i];
3563 if (track->nb_frag_info)
3564 mov_write_tfra_tag(pb, track);
3565 }
3566
3567 avio_wb32(pb, 16);
3568 ffio_wfourcc(pb, "mfro");
3569 avio_wb32(pb, 0); /* version + flags */
3570 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3571
3572 return update_size(pb, pos);
3573 }
3574
3575 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3576 {
3577 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3578 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3579
3580 mov->mdat_pos = avio_tell(pb);
3581 avio_wb32(pb, 0); /* size placeholder*/
3582 ffio_wfourcc(pb, "mdat");
3583 return 0;
3584 }
3585
3586 /* TODO: This needs to be more general */
3587 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3588 {
3589 MOVMuxContext *mov = s->priv_data;
3590 int64_t pos = avio_tell(pb);
3591 int has_h264 = 0, has_video = 0;
3592 int minor = 0x200;
3593 int i;
3594
3595 for (i = 0; i < s->nb_streams; i++) {
3596 AVStream *st = s->streams[i];
3597 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3598 has_video = 1;
3599 if (st->codec->codec_id == AV_CODEC_ID_H264)
3600 has_h264 = 1;
3601 }
3602
3603 avio_wb32(pb, 0); /* size */
3604 ffio_wfourcc(pb, "ftyp");
3605
3606 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3607 ffio_wfourcc(pb, mov->major_brand);
3608 else if (mov->mode == MODE_3GP) {
3609 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3610 minor = has_h264 ? 0x100 : 0x200;
3611 } else if (mov->mode & MODE_3G2) {
3612 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3613 minor = has_h264 ? 0x20000 : 0x10000;
3614 } else if (mov->mode == MODE_PSP)
3615 ffio_wfourcc(pb, "MSNV");
3616 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3617 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3618 else if (mov->mode == MODE_MP4)
3619 ffio_wfourcc(pb, "isom");
3620 else if (mov->mode == MODE_IPOD)
3621 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3622 else if (mov->mode == MODE_ISM)
3623 ffio_wfourcc(pb, "isml");
3624 else if (mov->mode == MODE_F4V)
3625 ffio_wfourcc(pb, "f4v ");
3626 else
3627 ffio_wfourcc(pb, "qt ");
3628
3629 avio_wb32(pb, minor);
3630
3631 if (mov->mode == MODE_MOV)
3632 ffio_wfourcc(pb, "qt ");
3633 else if (mov->mode == MODE_ISM) {
3634 ffio_wfourcc(pb, "piff");
3635 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3636 ffio_wfourcc(pb, "isom");
3637 ffio_wfourcc(pb, "iso2");
3638 if (has_h264)
3639 ffio_wfourcc(pb, "avc1");
3640 }
3641
3642 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3643 // brand. This is compatible with users that don't understand tfdt.
3644 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3645 ffio_wfourcc(pb, "iso6");
3646
3647 if (mov->mode == MODE_3GP)
3648 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3649 else if (mov->mode & MODE_3G2)
3650 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3651 else if (mov->mode == MODE_PSP)
3652 ffio_wfourcc(pb, "MSNV");
3653 else if (mov->mode == MODE_MP4)
3654 ffio_wfourcc(pb, "mp41");
3655
3656 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
3657 ffio_wfourcc(pb, "dash");
3658
3659 return update_size(pb, pos);
3660 }
3661
3662 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3663 {
3664 AVStream *video_st = s->streams[0];
3665 AVCodecContext *video_codec = s->streams[0]->codec;
3666 AVCodecContext *audio_codec = s->streams[1]->codec;
3667 int audio_rate = audio_codec->sample_rate;
3668 // TODO: should be avg_frame_rate
3669 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3670 int audio_kbitrate = audio_codec->bit_rate / 1000;
3671 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3672
3673 avio_wb32(pb, 0x94); /* size */
3674 ffio_wfourcc(pb, "uuid");
3675 ffio_wfourcc(pb, "PROF");
3676
3677 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3678 avio_wb32(pb, 0xbb88695c);
3679 avio_wb32(pb, 0xfac9c740);
3680
3681 avio_wb32(pb, 0x0); /* ? */
3682 avio_wb32(pb, 0x3); /* 3 sections ? */
3683
3684 avio_wb32(pb, 0x14); /* size */
3685 ffio_wfourcc(pb, "FPRF");
3686 avio_wb32(pb, 0x0); /* ? */
3687 avio_wb32(pb, 0x0); /* ? */
3688 avio_wb32(pb, 0x0); /* ? */
3689
3690 avio_wb32(pb, 0x2c); /* size */
3691 ffio_wfourcc(pb, "APRF"); /* audio */
3692 avio_wb32(pb, 0x0);
3693 avio_wb32(pb, 0x2); /* TrackID */
3694 ffio_wfourcc(pb, "mp4a");
3695 avio_wb32(pb, 0x20f);
3696 avio_wb32(pb, 0x0);
3697 avio_wb32(pb, audio_kbitrate);
3698 avio_wb32(pb, audio_kbitrate);
3699 avio_wb32(pb, audio_rate);
3700 avio_wb32(pb, audio_codec->channels);
3701
3702 avio_wb32(pb, 0x34); /* size */
3703 ffio_wfourcc(pb, "VPRF"); /* video */
3704 avio_wb32(pb, 0x0);
3705 avio_wb32(pb, 0x1); /* TrackID */
3706 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3707 ffio_wfourcc(pb, "avc1");
3708 avio_wb16(pb, 0x014D);
3709 avio_wb16(pb, 0x0015);
3710 } else {
3711 ffio_wfourcc(pb, "mp4v");
3712 avio_wb16(pb, 0x0000);
3713 avio_wb16(pb, 0x0103);
3714 }
3715 avio_wb32(pb, 0x0);
3716 avio_wb32(pb, video_kbitrate);
3717 avio_wb32(pb, video_kbitrate);
3718 avio_wb32(pb, frame_rate);
3719 avio_wb32(pb, frame_rate);
3720 avio_wb16(pb, video_codec->width);
3721 avio_wb16(pb, video_codec->height);
3722 avio_wb32(pb, 0x010001); /* ? */
3723 }
3724
3725 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3726 {
3727 uint32_t c = -1;
3728 int i, closed_gop = 0;
3729
3730 for (i = 0; i < pkt->size - 4; i++) {
3731 c = (c << 8) + pkt->data[i];
3732 if (c == 0x1b8) { // gop
3733 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3734 } else if (c == 0x100) { // pic
3735 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3736 if (!temp_ref || closed_gop) // I picture is not reordered
3737 *flags = MOV_SYNC_SAMPLE;
3738 else
3739 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3740 break;
3741 }
3742 }
3743 return 0;
3744 }
3745
3746 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3747 {
3748 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3749 int seq = 0, entry = 0;
3750 int key = pkt->flags & AV_PKT_FLAG_KEY;
3751 start = find_next_marker(pkt->data, end);
3752 for (next = start; next < end; start = next) {
3753 next = find_next_marker(start + 4, end);
3754 switch (AV_RB32(start)) {
3755 case VC1_CODE_SEQHDR:
3756 seq = 1;
3757 break;
3758 case VC1_CODE_ENTRYPOINT:
3759 entry = 1;
3760 break;
3761 case VC1_CODE_SLICE:
3762 trk->vc1_info.slices = 1;
3763 break;
3764 }
3765 }
3766 if (!trk->entry && !fragment) {
3767 /* First packet in first fragment */
3768 trk->vc1_info.first_packet_seq = seq;
3769 trk->vc1_info.first_packet_entry = entry;
3770 } else if ((seq && !trk->vc1_info.packet_seq) ||
3771 (entry && !trk->vc1_info.packet_entry)) {
3772 int i;
3773 for (i = 0; i < trk->entry; i++)
3774 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3775 trk->has_keyframes = 0;
3776 if (seq)
3777 trk->vc1_info.packet_seq = 1;
3778 if (entry)
3779 trk->vc1_info.packet_entry = 1;
3780 if (!fragment) {
3781 /* First fragment */
3782 if ((!seq || trk->vc1_info.first_packet_seq) &&
3783 (!entry || trk->vc1_info.first_packet_entry)) {
3784 /* First packet had the same headers as this one, readd the
3785 * sync sample flag. */
3786 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3787 trk->has_keyframes = 1;
3788 }
3789 }
3790 }
3791 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3792 key = seq && entry;
3793 else if (trk->vc1_info.packet_seq)
3794 key = seq;
3795 else if (trk->vc1_info.packet_entry)
3796 key = entry;
3797 if (key) {
3798 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3799 trk->has_keyframes++;
3800 }
3801 }
3802
3803 static int mov_flush_fragment(AVFormatContext *s)
3804 {
3805 MOVMuxContext *mov = s->priv_data;
3806 int i, first_track = -1;
3807 int64_t mdat_size = 0;
3808
3809 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3810 return 0;
3811
3812 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3813 int64_t pos = avio_tell(s->pb);
3814 uint8_t *buf;
3815 int buf_size, moov_size;
3816
3817 for (i = 0; i < mov->nb_streams; i++)
3818 if (!mov->tracks[i].entry)
3819 break;
3820 /* Don't write the initial moov unless all tracks have data */
3821 if (i < mov->nb_streams)
3822 return 0;
3823
3824 moov_size = get_moov_size(s);
3825 for (i = 0; i < mov->nb_streams; i++)
3826 mov->tracks[i].data_offset = pos + moov_size + 8;
3827
3828 mov_write_moov_tag(s->pb, mov, s);
3829
3830 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3831 mov->mdat_buf = NULL;
3832 avio_wb32(s->pb, buf_size + 8);
3833 ffio_wfourcc(s->pb, "mdat");
3834 avio_write(s->pb, buf, buf_size);
3835 av_free(buf);
3836
3837 mov->fragments++;
3838 mov->mdat_size = 0;
3839 for (i = 0; i < mov->nb_streams; i++) {
3840 if (mov->tracks[i].entry)
3841 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3842 mov->tracks[i].track_duration -
3843 mov->tracks[i].cluster[0].dts;
3844 mov->tracks[i].entry = 0;
3845 }
3846 avio_flush(s->pb);
3847 return 0;
3848 }
3849
3850 for (i = 0; i < mov->nb_streams; i++) {
3851 MOVTrack *track = &mov->tracks[i];
3852 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3853 track->data_offset = 0;
3854 else
3855 track->data_offset = mdat_size;
3856 if (!track->mdat_buf)
3857 continue;
3858 mdat_size += avio_tell(track->mdat_buf);
3859 if (first_track < 0)
3860 first_track = i;
3861 }
3862
3863 if (!mdat_size)
3864 return 0;
3865
3866 for (i = 0; i < mov->nb_streams; i++) {
3867 MOVTrack *track = &mov->tracks[i];
3868 int buf_size, write_moof = 1, moof_tracks = -1;
3869 uint8_t *buf;
3870 int64_t duration = 0;
3871
3872 if (track->entry)
3873 duration = track->start_dts + track->track_duration -
3874 track->cluster[0].dts;
3875 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3876 if (!track->mdat_buf)
3877 continue;
3878 mdat_size = avio_tell(track->mdat_buf);
3879 moof_tracks = i;
3880 } else {
3881 write_moof = i == first_track;
3882 }
3883
3884 if (write_moof) {
3885 avio_flush(s->pb);
3886
3887 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3888 mov->fragments++;
3889
3890 avio_wb32(s->pb, mdat_size + 8);
3891 ffio_wfourcc(s->pb, "mdat");
3892 }
3893
3894 if (track->entry)
3895 track->frag_start += duration;
3896 track->entry = 0;
3897 if (!track->mdat_buf)
3898 continue;
3899 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3900 track->mdat_buf = NULL;
3901
3902 avio_write(s->pb, buf, buf_size);
3903 av_free(buf);
3904 }
3905
3906 mov->mdat_size = 0;
3907
3908 avio_flush(s->pb);
3909 return 0;
3910 }
3911
3912 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3913 {
3914 MOVMuxContext *mov = s->priv_data;
3915 AVIOContext *pb = s->pb;
3916 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3917 AVCodecContext *enc = trk->enc;
3918 unsigned int samples_in_chunk = 0;
3919 int size = pkt->size, ret = 0;
3920 uint8_t *reformatted_data = NULL;
3921
3922 if (trk->entry) {
3923 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3924 if (duration < 0 || duration > INT_MAX) {
3925 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3926 duration, pkt->dts
3927 );
3928
3929 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3930 pkt->pts = AV_NOPTS_VALUE;
3931 }
3932 if (pkt->duration < 0) {
3933 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3934 return AVERROR(EINVAL);
3935 }
3936 }
3937 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3938 int ret;
3939 if (mov->fragments > 0) {
3940 if (!trk->mdat_buf) {
3941 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3942 return ret;
3943 }
3944 pb = trk->mdat_buf;
3945 } else {
3946 if (!mov->mdat_buf) {
3947 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3948 return ret;
3949 }
3950 pb = mov->mdat_buf;
3951 }
3952 }
3953
3954 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3955 /* We must find out how many AMR blocks there are in one packet */
3956 static uint16_t packed_size[16] =
3957 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3958 int len = 0;
3959
3960 while (len < size && samples_in_chunk < 100) {
3961 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3962 samples_in_chunk++;
3963 }
3964 if (samples_in_chunk > 1) {
3965 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3966 return -1;
3967 }
3968 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3969 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3970 samples_in_chunk = enc->frame_size;
3971 } else if (trk->sample_size)
3972 samples_in_chunk = size / trk->sample_size;
3973 else
3974 samples_in_chunk = 1;
3975
3976 /* copy extradata if it exists */
3977 if (trk->vos_len == 0 && enc->extradata_size > 0 && !TAG_IS_AVCI(trk->tag)) {
3978 trk->vos_len = enc->extradata_size;
3979 trk->vos_data = av_malloc(trk->vos_len);
3980 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3981 }
3982
3983 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3984 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3985 if (!s->streams[pkt->stream_index]->nb_frames) {
3986 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3987 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
3988 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3989 return -1;
3990 }
3991 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3992 }
3993 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
3994 /* from x264 or from bytestream h264 */
3995 /* nal reformating needed */
3996 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3997 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3998 &size);
3999 avio_write(pb, reformatted_data, size);
4000 } else {
4001 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4002 }
4003 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4004 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4005 /* extradata is Annex B, assume the bitstream is too and convert it */
4006 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4007 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4008 avio_write(pb, reformatted_data, size);
4009 } else {
4010 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4011 }
4012 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4013 size = handle_eac3(mov, pkt, trk);
4014 if (size < 0)
4015 return size;
4016 else if (!size)
4017 goto end;
4018 avio_write(pb, pkt->data, size);
4019 } else {
4020 avio_write(pb, pkt->data, size);
4021 }
4022
4023 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4024 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4025 /* copy frame to create needed atoms */
4026 trk->vos_len = size;
4027 trk->vos_data = av_malloc(size);
4028 if (!trk->vos_data) {
4029 ret = AVERROR(ENOMEM);
4030 goto err;
4031 }
4032 memcpy(trk->vos_data, pkt->data, size);
4033 }
4034
4035 if (trk->entry >= trk->cluster_capacity) {
4036 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4037 if (av_reallocp_array(&trk->cluster, new_capacity,
4038 sizeof(*trk->cluster))) {
4039 ret = AVERROR(ENOMEM);
4040 goto err;
4041 }
4042 trk->cluster_capacity = new_capacity;
4043 }
4044
4045 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4046 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4047 trk->cluster[trk->entry].chunkNum = 0;
4048 trk->cluster[trk->entry].size = size;
4049 trk->cluster[trk->entry].entries = samples_in_chunk;
4050 trk->cluster[trk->entry].dts = pkt->dts;
4051 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4052 if (!trk->frag_discont) {
4053 /* First packet of a new fragment. We already wrote the duration
4054 * of the last packet of the previous fragment based on track_duration,
4055 * which might not exactly match our dts. Therefore adjust the dts
4056 * of this packet to be what the previous packets duration implies. */
4057 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4058 } else {
4059 /* New fragment, but discontinuous from previous fragments.
4060 * Pretend the duration sum of the earlier fragments is
4061 * pkt->dts - trk->start_dts. */
4062 trk->frag_start = pkt->dts - trk->start_dts;
4063 trk->frag_discont = 0;
4064 }
4065 }
4066
4067 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4068 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4069 /* Not using edit lists and shifting the first track to start from zero.
4070 * If the other streams start from a later timestamp, we won't be able
4071 * to signal the difference in starting time without an edit list.
4072 * Thus move the timestamp for this first sample to 0, increasing
4073 * its duration instead. */
4074 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4075 }
4076 if (trk->start_dts == AV_NOPTS_VALUE) {
4077 trk->start_dts = pkt->dts;
4078 if (trk->frag_discont) {
4079 /* Pretend the whole stream started at dts=0, with earlier framgents
4080 * already written, with a duration summing up to pkt->dts. */
4081 trk->frag_start = pkt->dts;
4082 trk->start_dts = 0;
4083 trk->frag_discont = 0;
4084 } else if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
4085 av_log(s, AV_LOG_WARNING,
4086 "Track %d starts with a nonzero dts %"PRId64". This "
4087 "currently isn't handled correctly in combination with "
4088 "empty_moov.\n", pkt->stream_index, pkt->dts);
4089 }
4090 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4091 trk->last_sample_is_subtitle_end = 0;
4092
4093 if (pkt->pts == AV_NOPTS_VALUE) {
4094 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4095 pkt->pts = pkt->dts;
4096 }
4097 if (pkt->dts != pkt->pts)
4098 trk->flags |= MOV_TRACK_CTTS;
4099 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4100 trk->cluster[trk->entry].flags = 0;
4101 if (enc->codec_id == AV_CODEC_ID_VC1) {
4102 mov_parse_vc1_frame(pkt, trk, mov->fragments);
4103 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4104 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4105 trk->entry > 0) { // force sync sample for the first key frame
4106 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4107 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4108 trk->flags |= MOV_TRACK_STPS;
4109 } else {
4110 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4111 }
4112 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4113 trk->has_keyframes++;
4114 }
4115 trk->entry++;
4116 trk->sample_count += samples_in_chunk;
4117 mov->mdat_size += size;
4118
4119 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4120 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4121 reformatted_data, size);
4122
4123 end:
4124 err:
4125
4126 av_free(reformatted_data);
4127 return ret;
4128 }
4129
4130 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4131 {
4132 MOVMuxContext *mov = s->priv_data;
4133 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4134 AVCodecContext *enc = trk->enc;
4135 int64_t frag_duration = 0;
4136 int size = pkt->size;
4137
4138 if (!pkt->size)
4139 return 0; /* Discard 0 sized packets */
4140
4141 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4142 int i;
4143 for (i = 0; i < s->nb_streams; i++)
4144 mov->tracks[i].frag_discont = 1;
4145 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4146 }
4147
4148 if (trk->entry && pkt->stream_index < s->nb_streams)
4149 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4150 s->streams[pkt->stream_index]->time_base,
4151 AV_TIME_BASE_Q);
4152 if ((mov->max_fragment_duration &&
4153 frag_duration >= mov->max_fragment_duration) ||
4154 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4155 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4156 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4157 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4158 if (frag_duration >= mov->min_fragment_duration)
4159 mov_flush_fragment(s);
4160 }
4161
4162 return ff_mov_write_packet(s, pkt);
4163 }
4164
4165 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4166 int stream_index,
4167 int64_t dts) {
4168 AVPacket end;
4169 uint8_t data[2] = {0};
4170 int ret;
4171
4172 av_init_packet(&end);
4173 end.size = sizeof(data);
4174 end.data = data;
4175 end.pts = dts;
4176 end.dts = dts;
4177 end.duration = 0;
4178 end.stream_index = stream_index;
4179
4180 ret = mov_write_single_packet(s, &end);
4181 av_free_packet(&end);
4182
4183 return ret;
4184 }
4185
4186 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4187 {
4188 if (!pkt) {
4189 mov_flush_fragment(s);
4190 return 1;
4191 } else {
4192 int i;
4193 MOVMuxContext *mov = s->priv_data;
4194
4195 if (!pkt->size) return 0; /* Discard 0 sized packets */
4196
4197 /*
4198 * Subtitles require special handling.
4199 *
4200 * 1) For full complaince, every track must have a sample at
4201 * dts == 0, which is rarely true for subtitles. So, as soon
4202 * as we see any packet with dts > 0, write an empty subtitle
4203 * at dts == 0 for any subtitle track with no samples in it.
4204 *
4205 * 2) For each subtitle track, check if the current packet's
4206 * dts is past the duration of the last subtitle sample. If
4207 * so, we now need to write an end sample for that subtitle.
4208 *
4209 * This must be done conditionally to allow for subtitles that
4210 * immediately replace each other, in which case an end sample
4211 * is not needed, and is, in fact, actively harmful.
4212 *
4213 * 3) See mov_write_trailer for how the final end sample is
4214 * handled.
4215 */
4216 for (i = 0; i < mov->nb_streams; i++) {
4217 MOVTrack *trk = &mov->tracks[i];
4218 int ret;
4219
4220 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4221 trk->track_duration < pkt->dts &&
4222 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4223 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4224 if (ret < 0) return ret;
4225 trk->last_sample_is_subtitle_end = 1;
4226 }
4227 }
4228
4229 return mov_write_single_packet(s, pkt);
4230 }
4231 }
4232
4233 // QuickTime chapters involve an additional text track with the chapter names
4234 // as samples, and a tref pointing from the other tracks to the chapter one.
4235 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4236 {
4237 AVIOContext *pb;
4238
4239 MOVMuxContext *mov = s->priv_data;
4240 MOVTrack *track = &mov->tracks[tracknum];
4241 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4242 int i, len;
4243
4244 track->mode = mov->mode;
4245 track->tag = MKTAG('t','e','x','t');
4246 track->timescale = MOV_TIMESCALE;
4247 track->enc = avcodec_alloc_context3(NULL);
4248 if (!track->enc)
4249 return AVERROR(ENOMEM);
4250 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4251 #if 0
4252 // These properties are required to make QT recognize the chapter track
4253 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4254 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4255 return AVERROR(ENOMEM);
4256 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4257 #else
4258 if (avio_open_dyn_buf(&pb) >= 0) {
4259 int size;
4260 uint8_t *buf;
4261
4262 /* Stub header (usually for Quicktime chapter track) */
4263 // TextSampleEntry
4264 avio_wb32(pb, 0x01); // displayFlags
4265 avio_w8(pb, 0x00); // horizontal justification
4266 avio_w8(pb, 0x00); // vertical justification
4267 avio_w8(pb, 0x00); // bgColourRed
4268 avio_w8(pb, 0x00); // bgColourGreen
4269 avio_w8(pb, 0x00); // bgColourBlue
4270 avio_w8(pb, 0x00); // bgColourAlpha
4271 // BoxRecord
4272 avio_wb16(pb, 0x00); // defTextBoxTop
4273 avio_wb16(pb, 0x00); // defTextBoxLeft
4274 avio_wb16(pb, 0x00); // defTextBoxBottom
4275 avio_wb16(pb, 0x00); // defTextBoxRight
4276 // StyleRecord
4277 avio_wb16(pb, 0x00); // startChar
4278 avio_wb16(pb, 0x00); // endChar
4279 avio_wb16(pb, 0x01); // fontID
4280 avio_w8(pb, 0x00); // fontStyleFlags
4281 avio_w8(pb, 0x00); // fontSize
4282 avio_w8(pb, 0x00); // fgColourRed
4283 avio_w8(pb, 0x00); // fgColourGreen
4284 avio_w8(pb, 0x00); // fgColourBlue
4285 avio_w8(pb, 0x00); // fgColourAlpha
4286 // FontTableBox
4287 avio_wb32(pb, 0x0D); // box size
4288 ffio_wfourcc(pb, "ftab"); // box atom name
4289 avio_wb16(pb, 0x01); // entry count
4290 // FontRecord
4291 avio_wb16(pb, 0x01); // font ID
4292 avio_w8(pb, 0x00); // font name length
4293
4294 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4295 track->enc->extradata = buf;
4296 track->enc->extradata_size = size;
4297 } else {
4298 av_freep(&buf);
4299 }
4300 }
4301 #endif
4302
4303 for (i = 0; i < s->nb_chapters; i++) {
4304 AVChapter *c = s->chapters[i];
4305 AVDictionaryEntry *t;
4306
4307 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4308 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4309 pkt.duration = end - pkt.dts;
4310
4311 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4312 const char encd[12] = {
4313 0x00, 0x00, 0x00, 0x0C,
4314 'e', 'n', 'c', 'd',
4315 0x00, 0x00, 0x01, 0x00 };
4316 len = strlen(t->value);
4317 pkt.size = len + 2 + 12;
4318 pkt.data = av_malloc(pkt.size);
4319 if (!pkt.data)
4320 return AVERROR(ENOMEM);
4321 AV_WB16(pkt.data, len);
4322 memcpy(pkt.data + 2, t->value, len);
4323 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4324 ff_mov_write_packet(s, &pkt);
4325 av_freep(&pkt.data);
4326 }
4327 }
4328
4329 return 0;
4330 }
4331
4332 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4333 {
4334 int ret;
4335 MOVMuxContext *mov = s->priv_data;
4336 MOVTrack *track = &mov->tracks[index];
4337 AVStream *src_st = s->streams[src_index];
4338 AVTimecode tc;
4339 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4340 AVRational rate = find_fps(s, src_st);
4341
4342 /* compute the frame number */
4343 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4344 if (ret < 0)
4345 return ret;
4346
4347 /* tmcd track based on video stream */
4348 track->mode = mov->mode;
4349 track->tag = MKTAG('t','m','c','d');
4350 track->src_track = src_index;
4351 track->timescale = mov->tracks[src_index].timescale;
4352 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4353 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4354
4355 /* set st to src_st for metadata access*/
4356 track->st = src_st;
4357
4358 /* encode context: tmcd data stream */
4359 track->enc = avcodec_alloc_context3(NULL);
4360 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4361 track->enc->codec_tag = track->tag;
4362 track->enc->time_base = av_inv_q(rate);
4363
4364 /* the tmcd track just contains one packet with the frame number */
4365 pkt.data = av_malloc(pkt.size);
4366 AV_WB32(pkt.data, tc.start);
4367 ret = ff_mov_write_packet(s, &pkt);
4368 av_free(pkt.data);
4369 return ret;
4370 }
4371
4372 /*
4373 * st->disposition controls the "enabled" flag in the tkhd tag.
4374 * QuickTime will not play a track if it is not enabled. So make sure
4375 * that one track of each type (audio, video, subtitle) is enabled.
4376 *
4377 * Subtitles are special. For audio and video, setting "enabled" also
4378 * makes the track "default" (i.e. it is rendered when played). For
4379 * subtitles, an "enabled" subtitle is not rendered by default, but
4380 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4381 * empty!
4382 */
4383 static void enable_tracks(AVFormatContext *s)
4384 {
4385 MOVMuxContext *mov = s->priv_data;
4386 int i;
4387 int enabled[AVMEDIA_TYPE_NB];
4388 int first[AVMEDIA_TYPE_NB];
4389
4390 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4391 enabled[i] = 0;
4392 first[i] = -1;
4393 }
4394
4395 for (i = 0; i < s->nb_streams; i++) {
4396 AVStream *st = s->streams[i];
4397
4398 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4399 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4400 continue;
4401
4402 if (first[st->codec->codec_type] < 0)
4403 first[st->codec->codec_type] = i;
4404 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4405 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4406 enabled[st->codec->codec_type]++;
4407 }
4408 }
4409
4410 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4411 switch (i) {
4412 case AVMEDIA_TYPE_VIDEO:
4413 case AVMEDIA_TYPE_AUDIO:
4414 case AVMEDIA_TYPE_SUBTITLE:
4415 if (enabled[i] > 1)
4416 mov->per_stream_grouping = 1;
4417 if (!enabled[i] && first[i] >= 0)
4418 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4419 break;
4420 }
4421 }
4422 }
4423
4424 static void mov_free(AVFormatContext *s)
4425 {
4426 MOVMuxContext *mov = s->priv_data;
4427 int i;
4428
4429 if (mov->chapter_track) {
4430 if (mov->tracks[mov->chapter_track].enc)
4431 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4432 av_freep(&mov->tracks[mov->chapter_track].enc);
4433 }
4434
4435 for (i = 0; i < mov->nb_streams; i++) {
4436 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4437 ff_mov_close_hinting(&mov->tracks[i]);
4438 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4439 av_freep(&mov->tracks[i].enc);
4440 av_freep(&mov->tracks[i].cluster);
4441 av_freep(&mov->tracks[i].frag_info);
4442
4443 if (mov->tracks[i].vos_len)
4444 av_freep(&mov->tracks[i].vos_data);
4445 }
4446
4447 av_freep(&mov->tracks);
4448 }
4449
4450 static uint32_t rgb_to_yuv(uint32_t rgb)
4451 {
4452 uint8_t r, g, b;
4453 int y, cb, cr;
4454
4455 r = (rgb >> 16) & 0xFF;
4456 g = (rgb >> 8) & 0xFF;
4457 b = (rgb ) & 0xFF;
4458
4459 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
4460 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
4461 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
4462
4463 return (y << 16) | (cr << 8) | cb;
4464 }
4465
4466 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4467 AVStream *st)
4468 {
4469 int i, width = 720, height = 480;
4470 int have_palette = 0, have_size = 0;
4471 uint32_t palette[16];
4472 char *cur = st->codec->extradata;
4473
4474 while (cur && *cur) {
4475 if (strncmp("palette:", cur, 8) == 0) {
4476 int i, count;
4477 count = sscanf(cur + 8,
4478 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4479 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4480 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4481 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4482 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4483 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4484 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4485 &palette[12], &palette[13], &palette[14], &palette[15]);
4486
4487 for (i = 0; i < count; i++) {
4488 palette[i] = rgb_to_yuv(palette[i]);
4489 }
4490 have_palette = 1;
4491 } else if (!strncmp("size:", cur, 5)) {
4492 sscanf(cur + 5, "%dx%d", &width, &height);
4493 have_size = 1;
4494 }
4495 if (have_palette && have_size)
4496 break;
4497 cur += strcspn(cur, "\n\r");
4498 cur += strspn(cur, "\n\r");
4499 }
4500 if (have_palette) {
4501 track->vos_data = av_malloc(16*4);
4502 if (!track->vos_data)
4503 return AVERROR(ENOMEM);
4504 for (i = 0; i < 16; i++) {
4505 AV_WB32(track->vos_data + i * 4, palette[i]);
4506 }
4507 track->vos_len = 16 * 4;
4508 }
4509 st->codec->width = width;
4510 st->codec->height = track->height = height;
4511
4512 return 0;
4513 }
4514
4515 static int mov_write_header(AVFormatContext *s)
4516 {
4517 AVIOContext *pb = s->pb;
4518 MOVMuxContext *mov = s->priv_data;
4519 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4520 int i, ret, hint_track = 0, tmcd_track = 0;
4521
4522 mov->fc = s;
4523
4524 /* Default mode == MP4 */
4525 mov->mode = MODE_MP4;
4526
4527 if (s->oformat) {
4528 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4529 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4530 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4531 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4532 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4533 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4534 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4535 }
4536
4537 if (s->flags & AVFMT_FLAG_BITEXACT)
4538 mov->exact = 1;
4539
4540 /* Set the FRAGMENT flag if any of the fragmentation methods are
4541 * enabled. */
4542 if (mov->max_fragment_duration || mov->max_fragment_size ||
4543 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4544 FF_MOV_FLAG_FRAG_KEYFRAME |
4545 FF_MOV_FLAG_FRAG_CUSTOM))
4546 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4547
4548 /* Set other implicit flags immediately */
4549 if (mov->mode == MODE_ISM)
4550 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4551 FF_MOV_FLAG_FRAGMENT;
4552 if (mov->flags & FF_MOV_FLAG_DASH)
4553 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4554 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4555
4556 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4557 mov->reserved_moov_size = -1;
4558 }
4559
4560 if (mov->use_editlist < 0) {
4561 mov->use_editlist = 1;
4562 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4563 // If we can avoid needing an edit list by shifting the
4564 // tracks, prefer that over (trying to) write edit lists
4565 // in fragmented output.
4566 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4567 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4568 mov->use_editlist = 0;
4569 }
4570 }
4571 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && mov->use_editlist)
4572 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov\n");
4573
4574 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4575 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4576
4577 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4578 * is enabled, we don't support non-seekable output at all. */
4579 if (!s->pb->seekable &&
4580 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4581 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4582 return AVERROR(EINVAL);
4583 }
4584
4585 mov_write_ftyp_tag(pb,s);
4586 if (mov->mode == MODE_PSP) {
4587 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4588 for (i = 0; i < s->nb_streams; i++) {
4589 AVStream *st = s->streams[i];
4590 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4591 video_streams_nb++;
4592 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4593 audio_streams_nb++;
4594 else
4595 other_streams_nb++;
4596 }
4597
4598 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4599 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4600 return AVERROR(EINVAL);
4601 }
4602 mov_write_uuidprof_tag(pb, s);
4603 }
4604
4605 mov->nb_streams = s->nb_streams;
4606 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4607 mov->chapter_track = mov->nb_streams++;
4608
4609 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4610 /* Add hint tracks for each audio and video stream */
4611 hint_track = mov->nb_streams;
4612 for (i = 0; i < s->nb_streams; i++) {
4613 AVStream *st = s->streams[i];
4614 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4615 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4616 mov->nb_streams++;
4617 }
4618 }
4619 }
4620
4621 if (mov->mode == MODE_MOV) {
4622 tmcd_track = mov->nb_streams;
4623
4624 /* +1 tmcd track for each video stream with a timecode */
4625 for (i = 0; i < s->nb_streams; i++) {
4626 AVStream *st = s->streams[i];
4627 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4628 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4629 mov->nb_meta_tmcd++;
4630 }
4631
4632 /* check if there is already a tmcd track to remux */
4633 if (mov->nb_meta_tmcd) {
4634 for (i = 0; i < s->nb_streams; i++) {
4635 AVStream *st = s->streams[i];
4636 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4637 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4638 "so timecode metadata are now ignored\n");
4639 mov->nb_meta_tmcd = 0;
4640 }
4641 }
4642 }
4643
4644 mov->nb_streams += mov->nb_meta_tmcd;
4645 }
4646
4647 // Reserve an extra stream for chapters for the case where chapters
4648 // are written in the trailer
4649 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4650 if (!mov->tracks)
4651 return AVERROR(ENOMEM);
4652
4653 for (i = 0; i < s->nb_streams; i++) {
4654 AVStream *st= s->streams[i];
4655 MOVTrack *track= &mov->tracks[i];
4656 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4657
4658 track->st = st;
4659 track->enc = st->codec;
4660 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4661 if (track->language < 0)
4662 track->language = 0;
4663 track->mode = mov->mode;
4664 track->tag = mov_find_codec_tag(s, track);
4665 if (!track->tag) {
4666 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4667 "codec not currently supported in container\n",
4668 avcodec_get_name(st->codec->codec_id), i);
4669 ret = AVERROR(EINVAL);
4670 goto error;
4671 }
4672 /* If hinting of this track is enabled by a later hint track,
4673 * this is updated. */
4674 track->hint_track = -1;
4675 track->start_dts = AV_NOPTS_VALUE;
4676 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4677 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4678 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4679 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4680 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4681 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4682 ret = AVERROR(EINVAL);
4683 goto error;
4684 }
4685 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4686 }
4687 if (mov->video_track_timescale) {
4688 track->timescale = mov->video_track_timescale;
4689 } else {
4690 track->timescale = st->time_base.den;
4691 while(track->timescale < 10000)
4692 track->timescale *= 2;
4693 }
4694 if (st->codec->width > 65535 || st->codec->height > 65535) {
4695 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4696 ret = AVERROR(EINVAL);
4697 goto error;
4698 }
4699 if (track->mode == MODE_MOV && track->timescale > 100000)
4700 av_log(s, AV_LOG_WARNING,
4701 "WARNING codec timebase is very high. If duration is too long,\n"
4702 "file may not be playable by quicktime. Specify a shorter timebase\n"
4703 "or choose different container.\n");
4704 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4705 track->timescale = st->codec->sample_rate;
4706 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4707 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4708 track->audio_vbr = 1;
4709 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4710 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4711 st->codec->codec_id == AV_CODEC_ID_ILBC){
4712 if (!st->codec->block_align) {
4713 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4714 ret = AVERROR(EINVAL);
4715 goto error;
4716 }
4717 track->sample_size = st->codec->block_align;
4718 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4719 track->audio_vbr = 1;
4720 }else{
4721 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4722 }
4723 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4724 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4725 track->audio_vbr = 1;
4726 }
4727 if (track->mode != MODE_MOV &&
4728 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4729 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4730 i, track->enc->sample_rate);
4731 ret = AVERROR(EINVAL);
4732 goto error;
4733 }
4734 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4735 track->timescale = st->time_base.den;
4736 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4737 track->timescale = st->time_base.den;
4738 } else {
4739 track->timescale = MOV_TIMESCALE;
4740 }
4741 if (!track->height)
4742 track->height = st->codec->height;
4743 /* The ism specific timescale isn't mandatory, but is assumed by
4744 * some tools, such as mp4split. */
4745 if (mov->mode == MODE_ISM)
4746 track->timescale = 10000000;
4747
4748 avpriv_set_pts_info(st, 64, 1, track->timescale);
4749
4750 /* copy extradata if it exists */
4751 if (st->codec->extradata_size) {
4752 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4753 mov_create_dvd_sub_decoder_specific_info(track, st);
4754 else if (!TAG_IS_AVCI(track->tag)){
4755 track->vos_len = st->codec->extradata_size;
4756 track->vos_data = av_malloc(track->vos_len);
4757 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4758 }
4759 }
4760 }
4761
4762 for (i = 0; i < s->nb_streams; i++) {
4763 int j;
4764 AVStream *st= s->streams[i];
4765 MOVTrack *track= &mov->tracks[i];
4766
4767 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4768 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4769 continue;
4770
4771 for (j = 0; j < s->nb_streams; j++) {
4772 AVStream *stj= s->streams[j];
4773 MOVTrack *trackj= &mov->tracks[j];
4774 if (j == i)
4775 continue;
4776
4777 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4778 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4779 trackj->language != track->language ||
4780 trackj->tag != track->tag
4781 )
4782 continue;
4783 track->multichannel_as_mono++;
4784 }
4785 }
4786
4787 enable_tracks(s);
4788
4789
4790 if (mov->reserved_moov_size){
4791 mov->reserved_moov_pos= avio_tell(pb);
4792 if (mov->reserved_moov_size > 0)
4793 avio_skip(pb, mov->reserved_moov_size);
4794 }
4795
4796 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4797 /* If no fragmentation options have been set, set a default. */
4798 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4799 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4800 !mov->max_fragment_duration && !mov->max_fragment_size)
4801 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4802 } else {
4803 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4804 mov->reserved_moov_pos = avio_tell(pb);
4805 mov_write_mdat_tag(pb, mov);
4806 }
4807
4808 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4809 mov->time = ff_iso8601_to_unix_time(t->value);
4810 if (mov->time)
4811 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4812
4813 if (mov->chapter_track)
4814 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4815 goto error;
4816
4817 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4818 /* Initialize the hint tracks for each audio and video stream */
4819 for (i = 0; i < s->nb_streams; i++) {
4820 AVStream *st = s->streams[i];
4821 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4822 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4823 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4824 goto error;
4825 hint_track++;
4826 }
4827 }
4828 }
4829
4830 if (mov->nb_meta_tmcd) {
4831 /* Initialize the tmcd tracks */
4832 for (i = 0; i < s->nb_streams; i++) {
4833 AVStream *st = s->streams[i];
4834 t = global_tcr;
4835
4836 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4837 if (!t)
4838 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4839 if (!t)
4840 continue;
4841 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4842 goto error;
4843 tmcd_track++;
4844 }
4845 }
4846 }
4847
4848 avio_flush(pb);
4849
4850 if (mov->flags & FF_MOV_FLAG_ISML)
4851 mov_write_isml_manifest(pb, mov);
4852
4853 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4854 mov_write_moov_tag(pb, mov, s);
4855 mov->fragments++;
4856 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4857 mov->reserved_moov_pos = avio_tell(pb);
4858 }
4859
4860 return 0;
4861 error:
4862 mov_free(s);
4863 return ret;
4864 }
4865
4866 static int get_moov_size(AVFormatContext *s)
4867 {
4868 int ret;
4869 AVIOContext *moov_buf;
4870 MOVMuxContext *mov = s->priv_data;
4871
4872 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4873 return ret;
4874 mov_write_moov_tag(moov_buf, mov, s);
4875 return ffio_close_null_buf(moov_buf);
4876 }
4877
4878 static int get_sidx_size(AVFormatContext *s)
4879 {
4880 int ret;
4881 AVIOContext *buf;
4882 MOVMuxContext *mov = s->priv_data;
4883
4884 if ((ret = ffio_open_null_buf(&buf)) < 0)
4885 return ret;
4886 mov_write_sidx_tags(buf, mov, -1, 0);
4887 return ffio_close_null_buf(buf);
4888 }
4889
4890 /*
4891 * This function gets the moov size if moved to the top of the file: the chunk
4892 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4893 * entries) when the moov is moved to the beginning, so the size of the moov
4894 * would change. It also updates the chunk offset tables.
4895 */
4896 static int compute_moov_size(AVFormatContext *s)
4897 {
4898 int i, moov_size, moov_size2;
4899 MOVMuxContext *mov = s->priv_data;
4900
4901 moov_size = get_moov_size(s);
4902 if (moov_size < 0)
4903 return moov_size;
4904
4905 for (i = 0; i < mov->nb_streams; i++)
4906 mov->tracks[i].data_offset += moov_size;
4907
4908 moov_size2 = get_moov_size(s);
4909 if (moov_size2 < 0)
4910 return moov_size2;
4911
4912 /* if the size changed, we just switched from stco to co64 and need to
4913 * update the offsets */
4914 if (moov_size2 != moov_size)
4915 for (i = 0; i < mov->nb_streams; i++)
4916 mov->tracks[i].data_offset += moov_size2 - moov_size;
4917
4918 return moov_size2;
4919 }
4920
4921 static int compute_sidx_size(AVFormatContext *s)
4922 {
4923 int i, sidx_size;
4924 MOVMuxContext *mov = s->priv_data;
4925
4926 sidx_size = get_sidx_size(s);
4927 if (sidx_size < 0)
4928 return sidx_size;
4929
4930 for (i = 0; i < mov->nb_streams; i++)
4931 mov->tracks[i].data_offset += sidx_size;
4932
4933 return sidx_size;
4934 }
4935
4936 static int shift_data(AVFormatContext *s)
4937 {
4938 int ret = 0, moov_size;
4939 MOVMuxContext *mov = s->priv_data;
4940 int64_t pos, pos_end = avio_tell(s->pb);
4941 uint8_t *buf, *read_buf[2];
4942 int read_buf_id = 0;
4943 int read_size[2];
4944 AVIOContext *read_pb;
4945
4946 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4947 moov_size = compute_sidx_size(s);
4948 else
4949 moov_size = compute_moov_size(s);
4950 if (moov_size < 0)
4951 return moov_size;
4952
4953 buf = av_malloc(moov_size * 2);
4954 if (!buf)
4955 return AVERROR(ENOMEM);
4956 read_buf[0] = buf;
4957 read_buf[1] = buf + moov_size;
4958
4959 /* Shift the data: the AVIO context of the output can only be used for
4960 * writing, so we re-open the same output, but for reading. It also avoids
4961 * a read/seek/write/seek back and forth. */
4962 avio_flush(s->pb);
4963 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4964 if (ret < 0) {
4965 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4966 "the second pass (faststart)\n", s->filename);
4967 goto end;
4968 }
4969
4970 /* mark the end of the shift to up to the last data we wrote, and get ready
4971 * for writing */
4972 pos_end = avio_tell(s->pb);
4973 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4974
4975 /* start reading at where the new moov will be placed */
4976 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4977 pos = avio_tell(read_pb);
4978
4979 #define READ_BLOCK do { \
4980 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4981 read_buf_id ^= 1; \
4982 } while (0)
4983
4984 /* shift data by chunk of at most moov_size */
4985 READ_BLOCK;
4986 do {
4987 int n;
4988 READ_BLOCK;
4989 n = read_size[read_buf_id];
4990 if (n <= 0)
4991 break;
4992 avio_write(s->pb, read_buf[read_buf_id], n);
4993 pos += n;
4994 } while (pos < pos_end);
4995 avio_close(read_pb);
4996
4997 end:
4998 av_free(buf);
4999 return ret;
5000 }
5001
5002 static int mov_write_trailer(AVFormatContext *s)
5003 {
5004 MOVMuxContext *mov = s->priv_data;
5005 AVIOContext *pb = s->pb;
5006 int res = 0;
5007 int i;
5008 int64_t moov_pos;
5009
5010 /*
5011 * Before actually writing the trailer, make sure that there are no
5012 * dangling subtitles, that need a terminating sample.
5013 */
5014 for (i = 0; i < mov->nb_streams; i++) {
5015 MOVTrack *trk = &mov->tracks[i];
5016 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5017 !trk->last_sample_is_subtitle_end) {
5018 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5019 trk->last_sample_is_subtitle_end = 1;
5020 }
5021 }
5022
5023 // If there were no chapters when the header was written, but there
5024 // are chapters now, write them in the trailer. This only works
5025 // when we are not doing fragments.
5026 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5027 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5028 mov->chapter_track = mov->nb_streams++;
5029 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5030 goto error;
5031 }
5032 }
5033
5034 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5035 moov_pos = avio_tell(pb);
5036
5037 /* Write size of mdat tag */
5038 if (mov->mdat_size + 8 <= UINT32_MAX) {
5039 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5040 avio_wb32(pb, mov->mdat_size + 8);
5041 } else {
5042 /* overwrite 'wide' placeholder atom */
5043 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5044 /* special value: real atom size will be 64 bit value after
5045 * tag field */
5046 avio_wb32(pb, 1);
5047 ffio_wfourcc(pb, "mdat");
5048 avio_wb64(pb, mov->mdat_size + 16);
5049 }
5050 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
5051
5052 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5053 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5054 res = shift_data(s);
5055 if (res == 0) {
5056 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5057 mov_write_moov_tag(pb, mov, s);
5058 }
5059 } else if (mov->reserved_moov_size > 0) {
5060 int64_t size;
5061 mov_write_moov_tag(pb, mov, s);
5062 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
5063 if (size < 8){
5064 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5065 return -1;
5066 }
5067 avio_wb32(pb, size);
5068 ffio_wfourcc(pb, "free");
5069 ffio_fill(pb, 0, size - 8);
5070 avio_seek(pb, moov_pos, SEEK_SET);
5071 } else {
5072 mov_write_moov_tag(pb, mov, s);
5073 }
5074 } else {
5075 mov_flush_fragment(s);
5076 for (i = 0; i < mov->nb_streams; i++)
5077 mov->tracks[i].data_offset = 0;
5078 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5079 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5080 res = shift_data(s);
5081 if (res == 0) {
5082 int64_t end = avio_tell(pb);
5083 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5084 mov_write_sidx_tags(pb, mov, -1, 0);
5085 avio_seek(pb, end, SEEK_SET);
5086 mov_write_mfra_tag(pb, mov);
5087 }
5088 } else {
5089 mov_write_mfra_tag(pb, mov);
5090 }
5091 }
5092
5093 for (i = 0; i < mov->nb_streams; i++) {
5094 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5095 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
5096 int64_t off = avio_tell(pb);
5097 uint8_t buf[7];
5098 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
5099 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
5100 avio_write(pb, buf, 7);
5101 avio_seek(pb, off, SEEK_SET);
5102 }
5103 }
5104 }
5105
5106 error:
5107 mov_free(s);
5108
5109 return res;
5110 }
5111
5112 #if CONFIG_MOV_MUXER
5113 MOV_CLASS(mov)
5114 AVOutputFormat ff_mov_muxer = {
5115 .name = "mov",
5116 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5117 .extensions = "mov",
5118 .priv_data_size = sizeof(MOVMuxContext),
5119 .audio_codec = AV_CODEC_ID_AAC,
5120 .video_codec = CONFIG_LIBX264_ENCODER ?
5121 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5122 .write_header = mov_write_header,
5123 .write_packet = mov_write_packet,
5124 .write_trailer = mov_write_trailer,
5125 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5126 .codec_tag = (const AVCodecTag* const []){
5127 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5128 },
5129 .priv_class = &mov_muxer_class,
5130 };
5131 #endif
5132 #if CONFIG_TGP_MUXER
5133 MOV_CLASS(tgp)
5134 AVOutputFormat ff_tgp_muxer = {
5135 .name = "3gp",
5136 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5137 .extensions = "3gp",
5138 .priv_data_size = sizeof(MOVMuxContext),
5139 .audio_codec = AV_CODEC_ID_AMR_NB,
5140 .video_codec = AV_CODEC_ID_H263,
5141 .write_header = mov_write_header,
5142 .write_packet = mov_write_packet,
5143 .write_trailer = mov_write_trailer,
5144 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5145 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5146 .priv_class = &tgp_muxer_class,
5147 };
5148 #endif
5149 #if CONFIG_MP4_MUXER
5150 MOV_CLASS(mp4)
5151 AVOutputFormat ff_mp4_muxer = {
5152 .name = "mp4",
5153 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5154 .mime_type = "application/mp4",
5155 .extensions = "mp4",
5156 .priv_data_size = sizeof(MOVMuxContext),
5157 .audio_codec = AV_CODEC_ID_AAC,
5158 .video_codec = CONFIG_LIBX264_ENCODER ?
5159 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5160 .write_header = mov_write_header,
5161 .write_packet = mov_write_packet,
5162 .write_trailer = mov_write_trailer,
5163 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5164 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5165 .priv_class = &mp4_muxer_class,
5166 };
5167 #endif
5168 #if CONFIG_PSP_MUXER
5169 MOV_CLASS(psp)
5170 AVOutputFormat ff_psp_muxer = {
5171 .name = "psp",
5172 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5173 .extensions = "mp4,psp",
5174 .priv_data_size = sizeof(MOVMuxContext),
5175 .audio_codec = AV_CODEC_ID_AAC,
5176 .video_codec = CONFIG_LIBX264_ENCODER ?
5177 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5178 .write_header = mov_write_header,
5179 .write_packet = mov_write_packet,
5180 .write_trailer = mov_write_trailer,
5181 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5182 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5183 .priv_class = &psp_muxer_class,
5184 };
5185 #endif
5186 #if CONFIG_TG2_MUXER
5187 MOV_CLASS(tg2)
5188 AVOutputFormat ff_tg2_muxer = {
5189 .name = "3g2",
5190 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5191 .extensions = "3g2",
5192 .priv_data_size = sizeof(MOVMuxContext),
5193 .audio_codec = AV_CODEC_ID_AMR_NB,
5194 .video_codec = AV_CODEC_ID_H263,
5195 .write_header = mov_write_header,
5196 .write_packet = mov_write_packet,
5197 .write_trailer = mov_write_trailer,
5198 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5199 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5200 .priv_class = &tg2_muxer_class,
5201 };
5202 #endif
5203 #if CONFIG_IPOD_MUXER
5204 MOV_CLASS(ipod)
5205 AVOutputFormat ff_ipod_muxer = {
5206 .name = "ipod",
5207 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5208 .mime_type = "application/mp4",
5209 .extensions = "m4v,m4a",
5210 .priv_data_size = sizeof(MOVMuxContext),
5211 .audio_codec = AV_CODEC_ID_AAC,
5212 .video_codec = AV_CODEC_ID_H264,
5213 .write_header = mov_write_header,
5214 .write_packet = mov_write_packet,
5215 .write_trailer = mov_write_trailer,
5216 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5217 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5218 .priv_class = &ipod_muxer_class,
5219 };
5220 #endif
5221 #if CONFIG_ISMV_MUXER
5222 MOV_CLASS(ismv)
5223 AVOutputFormat ff_ismv_muxer = {
5224 .name = "ismv",
5225 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5226 .mime_type = "application/mp4",
5227 .extensions = "ismv,isma",
5228 .priv_data_size = sizeof(MOVMuxContext),
5229 .audio_codec = AV_CODEC_ID_AAC,
5230 .video_codec = AV_CODEC_ID_H264,
5231 .write_header = mov_write_header,
5232 .write_packet = mov_write_packet,
5233 .write_trailer = mov_write_trailer,
5234 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5235 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5236 .priv_class = &ismv_muxer_class,
5237 };
5238 #endif
5239 #if CONFIG_F4V_MUXER
5240 MOV_CLASS(f4v)
5241 AVOutputFormat ff_f4v_muxer = {
5242 .name = "f4v",
5243 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5244 .mime_type = "application/f4v",
5245 .extensions = "f4v",
5246 .priv_data_size = sizeof(MOVMuxContext),
5247 .audio_codec = AV_CODEC_ID_AAC,
5248 .video_codec = AV_CODEC_ID_H264,
5249 .write_header = mov_write_header,
5250 .write_packet = mov_write_packet,
5251 .write_trailer = mov_write_trailer,
5252 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5253 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5254 .priv_class = &f4v_muxer_class,
5255 };
5256 #endif
ffmpeg Piment Noir Debian package repository