e11eb509d8daf90ccc0774a717d1491f5897ee23
[libav.git] / 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 Libav.
8 *
9 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "movenc.h"
25 #include "avformat.h"
26 #include "avio_internal.h"
27 #include "riff.h"
28 #include "avio.h"
29 #include "isom.h"
30 #include "avc.h"
31 #include "libavcodec/get_bits.h"
32 #include "libavcodec/put_bits.h"
33 #include "internal.h"
34 #include "libavutil/avstring.h"
35 #include "libavutil/intfloat.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/opt.h"
38 #include "libavutil/dict.h"
39 #include "rtpenc.h"
40 #include "mov_chan.h"
41
42 #undef NDEBUG
43 #include <assert.h>
44
45 static const AVOption options[] = {
46 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
47 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
48 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
49 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
50 { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
51 { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
52 { NULL },
53 };
54
55 #define MOV_CLASS(flavor)\
56 static const AVClass flavor ## _muxer_class = {\
57 .class_name = #flavor " muxer",\
58 .item_name = av_default_item_name,\
59 .option = options,\
60 .version = LIBAVUTIL_VERSION_INT,\
61 };
62
63 //FIXME support 64 bit variant with wide placeholders
64 static int64_t updateSize(AVIOContext *pb, int64_t pos)
65 {
66 int64_t curpos = avio_tell(pb);
67 avio_seek(pb, pos, SEEK_SET);
68 avio_wb32(pb, curpos - pos); /* rewrite size */
69 avio_seek(pb, curpos, SEEK_SET);
70
71 return curpos - pos;
72 }
73
74 /* Chunk offset atom */
75 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
76 {
77 int i;
78 int mode64 = 0; // use 32 bit size variant if possible
79 int64_t pos = avio_tell(pb);
80 avio_wb32(pb, 0); /* size */
81 if (pos > UINT32_MAX) {
82 mode64 = 1;
83 ffio_wfourcc(pb, "co64");
84 } else
85 ffio_wfourcc(pb, "stco");
86 avio_wb32(pb, 0); /* version & flags */
87 avio_wb32(pb, track->entry); /* entry count */
88 for (i=0; i<track->entry; i++) {
89 if(mode64 == 1)
90 avio_wb64(pb, track->cluster[i].pos);
91 else
92 avio_wb32(pb, track->cluster[i].pos);
93 }
94 return updateSize(pb, pos);
95 }
96
97 /* Sample size atom */
98 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
99 {
100 int equalChunks = 1;
101 int i, j, entries = 0, tst = -1, oldtst = -1;
102
103 int64_t pos = avio_tell(pb);
104 avio_wb32(pb, 0); /* size */
105 ffio_wfourcc(pb, "stsz");
106 avio_wb32(pb, 0); /* version & flags */
107
108 for (i=0; i<track->entry; i++) {
109 tst = track->cluster[i].size/track->cluster[i].entries;
110 if(oldtst != -1 && tst != oldtst) {
111 equalChunks = 0;
112 }
113 oldtst = tst;
114 entries += track->cluster[i].entries;
115 }
116 if (equalChunks) {
117 int sSize = track->cluster[0].size/track->cluster[0].entries;
118 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
119 avio_wb32(pb, sSize); // sample size
120 avio_wb32(pb, entries); // sample count
121 }
122 else {
123 avio_wb32(pb, 0); // sample size
124 avio_wb32(pb, entries); // sample count
125 for (i=0; i<track->entry; i++) {
126 for (j=0; j<track->cluster[i].entries; j++) {
127 avio_wb32(pb, track->cluster[i].size /
128 track->cluster[i].entries);
129 }
130 }
131 }
132 return updateSize(pb, pos);
133 }
134
135 /* Sample to chunk atom */
136 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
137 {
138 int index = 0, oldval = -1, i;
139 int64_t entryPos, curpos;
140
141 int64_t pos = avio_tell(pb);
142 avio_wb32(pb, 0); /* size */
143 ffio_wfourcc(pb, "stsc");
144 avio_wb32(pb, 0); // version & flags
145 entryPos = avio_tell(pb);
146 avio_wb32(pb, track->entry); // entry count
147 for (i=0; i<track->entry; i++) {
148 if(oldval != track->cluster[i].samplesInChunk)
149 {
150 avio_wb32(pb, i+1); // first chunk
151 avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
152 avio_wb32(pb, 0x1); // sample description index
153 oldval = track->cluster[i].samplesInChunk;
154 index++;
155 }
156 }
157 curpos = avio_tell(pb);
158 avio_seek(pb, entryPos, SEEK_SET);
159 avio_wb32(pb, index); // rewrite size
160 avio_seek(pb, curpos, SEEK_SET);
161
162 return updateSize(pb, pos);
163 }
164
165 /* Sync sample atom */
166 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
167 {
168 int64_t curpos, entryPos;
169 int i, index = 0;
170 int64_t pos = avio_tell(pb);
171 avio_wb32(pb, 0); // size
172 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
173 avio_wb32(pb, 0); // version & flags
174 entryPos = avio_tell(pb);
175 avio_wb32(pb, track->entry); // entry count
176 for (i=0; i<track->entry; i++) {
177 if (track->cluster[i].flags & flag) {
178 avio_wb32(pb, i+1);
179 index++;
180 }
181 }
182 curpos = avio_tell(pb);
183 avio_seek(pb, entryPos, SEEK_SET);
184 avio_wb32(pb, index); // rewrite size
185 avio_seek(pb, curpos, SEEK_SET);
186 return updateSize(pb, pos);
187 }
188
189 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
190 {
191 avio_wb32(pb, 0x11); /* size */
192 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
193 else ffio_wfourcc(pb, "damr");
194 ffio_wfourcc(pb, "FFMP");
195 avio_w8(pb, 0); /* decoder version */
196
197 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
198 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
199 avio_w8(pb, 0x01); /* Frames per sample */
200 return 0x11;
201 }
202
203 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
204 {
205 GetBitContext gbc;
206 PutBitContext pbc;
207 uint8_t buf[3];
208 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
209
210 if (track->vosLen < 7)
211 return -1;
212
213 avio_wb32(pb, 11);
214 ffio_wfourcc(pb, "dac3");
215
216 init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8);
217 fscod = get_bits(&gbc, 2);
218 frmsizecod = get_bits(&gbc, 6);
219 bsid = get_bits(&gbc, 5);
220 bsmod = get_bits(&gbc, 3);
221 acmod = get_bits(&gbc, 3);
222 if (acmod == 2) {
223 skip_bits(&gbc, 2); // dsurmod
224 } else {
225 if ((acmod & 1) && acmod != 1)
226 skip_bits(&gbc, 2); // cmixlev
227 if (acmod & 4)
228 skip_bits(&gbc, 2); // surmixlev
229 }
230 lfeon = get_bits1(&gbc);
231
232 init_put_bits(&pbc, buf, sizeof(buf));
233 put_bits(&pbc, 2, fscod);
234 put_bits(&pbc, 5, bsid);
235 put_bits(&pbc, 3, bsmod);
236 put_bits(&pbc, 3, acmod);
237 put_bits(&pbc, 1, lfeon);
238 put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
239 put_bits(&pbc, 5, 0); // reserved
240
241 flush_put_bits(&pbc);
242 avio_write(pb, buf, sizeof(buf));
243
244 return 11;
245 }
246
247 /**
248 * This function writes extradata "as is".
249 * Extradata must be formatted like a valid atom (with size and tag).
250 */
251 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
252 {
253 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
254 return track->enc->extradata_size;
255 }
256
257 static int mov_write_enda_tag(AVIOContext *pb)
258 {
259 avio_wb32(pb, 10);
260 ffio_wfourcc(pb, "enda");
261 avio_wb16(pb, 1); /* little endian */
262 return 10;
263 }
264
265 static void putDescr(AVIOContext *pb, int tag, unsigned int size)
266 {
267 int i = 3;
268 avio_w8(pb, tag);
269 for(; i>0; i--)
270 avio_w8(pb, (size>>(7*i)) | 0x80);
271 avio_w8(pb, size & 0x7F);
272 }
273
274 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
275 {
276 int64_t pos = avio_tell(pb);
277 int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0;
278
279 avio_wb32(pb, 0); // size
280 ffio_wfourcc(pb, "esds");
281 avio_wb32(pb, 0); // Version
282
283 // ES descriptor
284 putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1);
285 avio_wb16(pb, track->trackID);
286 avio_w8(pb, 0x00); // flags (= no flags)
287
288 // DecoderConfig descriptor
289 putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
290
291 // Object type indication
292 if ((track->enc->codec_id == CODEC_ID_MP2 ||
293 track->enc->codec_id == CODEC_ID_MP3) &&
294 track->enc->sample_rate > 24000)
295 avio_w8(pb, 0x6B); // 11172-3
296 else
297 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
298
299 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
300 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
301 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
302 avio_w8(pb, 0x15); // flags (= Audiostream)
303 else
304 avio_w8(pb, 0x11); // flags (= Visualstream)
305
306 avio_w8(pb, track->enc->rc_buffer_size>>(3+16)); // Buffersize DB (24 bits)
307 avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
308
309 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
310 if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
311 avio_wb32(pb, 0); // vbr
312 else
313 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
314
315 if (track->vosLen) {
316 // DecoderSpecific info descriptor
317 putDescr(pb, 0x05, track->vosLen);
318 avio_write(pb, track->vosData, track->vosLen);
319 }
320
321 // SL descriptor
322 putDescr(pb, 0x06, 1);
323 avio_w8(pb, 0x02);
324 return updateSize(pb, pos);
325 }
326
327 static int mov_pcm_le_gt16(enum CodecID codec_id)
328 {
329 return codec_id == CODEC_ID_PCM_S24LE ||
330 codec_id == CODEC_ID_PCM_S32LE ||
331 codec_id == CODEC_ID_PCM_F32LE ||
332 codec_id == CODEC_ID_PCM_F64LE;
333 }
334
335 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
336 {
337 int64_t pos = avio_tell(pb);
338 avio_wb32(pb, 0);
339 avio_wl32(pb, track->tag); // store it byteswapped
340 track->enc->codec_tag = av_bswap16(track->tag >> 16);
341 ff_put_wav_header(pb, track->enc);
342 return updateSize(pb, pos);
343 }
344
345 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
346 {
347 uint32_t layout_tag, bitmap;
348 int64_t pos = avio_tell(pb);
349
350 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
351 track->enc->channel_layout,
352 &bitmap);
353 if (!layout_tag) {
354 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
355 "lack of channel information\n");
356 return 0;
357 }
358
359 avio_wb32(pb, 0); // Size
360 ffio_wfourcc(pb, "chan"); // Type
361 avio_w8(pb, 0); // Version
362 avio_wb24(pb, 0); // Flags
363 avio_wb32(pb, layout_tag); // mChannelLayoutTag
364 avio_wb32(pb, bitmap); // mChannelBitmap
365 avio_wb32(pb, 0); // mNumberChannelDescriptions
366
367 return updateSize(pb, pos);
368 }
369
370 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
371 {
372 int64_t pos = avio_tell(pb);
373
374 avio_wb32(pb, 0); /* size */
375 ffio_wfourcc(pb, "wave");
376
377 avio_wb32(pb, 12); /* size */
378 ffio_wfourcc(pb, "frma");
379 avio_wl32(pb, track->tag);
380
381 if (track->enc->codec_id == CODEC_ID_AAC) {
382 /* useless atom needed by mplayer, ipod, not needed by quicktime */
383 avio_wb32(pb, 12); /* size */
384 ffio_wfourcc(pb, "mp4a");
385 avio_wb32(pb, 0);
386 mov_write_esds_tag(pb, track);
387 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
388 mov_write_enda_tag(pb);
389 } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
390 mov_write_amr_tag(pb, track);
391 } else if (track->enc->codec_id == CODEC_ID_AC3) {
392 mov_write_chan_tag(pb, track);
393 mov_write_ac3_tag(pb, track);
394 } else if (track->enc->codec_id == CODEC_ID_ALAC) {
395 mov_write_extradata_tag(pb, track);
396 } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
397 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
398 mov_write_ms_tag(pb, track);
399 }
400
401 avio_wb32(pb, 8); /* size */
402 avio_wb32(pb, 0); /* null tag */
403
404 return updateSize(pb, pos);
405 }
406
407 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
408 {
409 avio_wb32(pb, track->vosLen+8);
410 ffio_wfourcc(pb, "glbl");
411 avio_write(pb, track->vosData, track->vosLen);
412 return 8+track->vosLen;
413 }
414
415 /**
416 * Compute flags for 'lpcm' tag.
417 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
418 */
419 static int mov_get_lpcm_flags(enum CodecID codec_id)
420 {
421 switch (codec_id) {
422 case CODEC_ID_PCM_F32BE:
423 case CODEC_ID_PCM_F64BE:
424 return 11;
425 case CODEC_ID_PCM_F32LE:
426 case CODEC_ID_PCM_F64LE:
427 return 9;
428 case CODEC_ID_PCM_U8:
429 return 10;
430 case CODEC_ID_PCM_S16BE:
431 case CODEC_ID_PCM_S24BE:
432 case CODEC_ID_PCM_S32BE:
433 return 14;
434 case CODEC_ID_PCM_S8:
435 case CODEC_ID_PCM_S16LE:
436 case CODEC_ID_PCM_S24LE:
437 case CODEC_ID_PCM_S32LE:
438 return 12;
439 default:
440 return 0;
441 }
442 }
443
444 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
445 {
446 int64_t pos = avio_tell(pb);
447 int version = 0;
448 uint32_t tag = track->tag;
449
450 if (track->mode == MODE_MOV) {
451 if (mov_get_lpcm_flags(track->enc->codec_id))
452 tag = AV_RL32("lpcm");
453 version = 2;
454 }
455
456 avio_wb32(pb, 0); /* size */
457 avio_wl32(pb, tag); // store it byteswapped
458 avio_wb32(pb, 0); /* Reserved */
459 avio_wb16(pb, 0); /* Reserved */
460 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
461
462 /* SoundDescription */
463 avio_wb16(pb, version); /* Version */
464 avio_wb16(pb, 0); /* Revision level */
465 avio_wb32(pb, 0); /* Reserved */
466
467 if (version == 2) {
468 avio_wb16(pb, 3);
469 avio_wb16(pb, 16);
470 avio_wb16(pb, 0xfffe);
471 avio_wb16(pb, 0);
472 avio_wb32(pb, 0x00010000);
473 avio_wb32(pb, 72);
474 avio_wb64(pb, av_double2int(track->timescale));
475 avio_wb32(pb, track->enc->channels);
476 avio_wb32(pb, 0x7F000000);
477 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
478 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
479 avio_wb32(pb, track->sampleSize);
480 avio_wb32(pb, track->audio_vbr ? track->enc->frame_size : 1);
481 } else {
482 /* reserved for mp4/3gp */
483 avio_wb16(pb, 2);
484 avio_wb16(pb, 16);
485 avio_wb16(pb, 0);
486
487 avio_wb16(pb, 0); /* packet size (= 0) */
488 avio_wb16(pb, track->timescale); /* Time scale */
489 avio_wb16(pb, 0); /* Reserved */
490 }
491
492 if(track->mode == MODE_MOV &&
493 (track->enc->codec_id == CODEC_ID_AAC ||
494 track->enc->codec_id == CODEC_ID_AC3 ||
495 track->enc->codec_id == CODEC_ID_AMR_NB ||
496 track->enc->codec_id == CODEC_ID_ALAC ||
497 track->enc->codec_id == CODEC_ID_ADPCM_MS ||
498 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV ||
499 mov_pcm_le_gt16(track->enc->codec_id)))
500 mov_write_wave_tag(pb, track);
501 else if(track->tag == MKTAG('m','p','4','a'))
502 mov_write_esds_tag(pb, track);
503 else if(track->enc->codec_id == CODEC_ID_AMR_NB)
504 mov_write_amr_tag(pb, track);
505 else if(track->enc->codec_id == CODEC_ID_AC3)
506 mov_write_ac3_tag(pb, track);
507 else if(track->enc->codec_id == CODEC_ID_ALAC)
508 mov_write_extradata_tag(pb, track);
509 else if(track->vosLen > 0)
510 mov_write_glbl_tag(pb, track);
511
512 return updateSize(pb, pos);
513 }
514
515 static int mov_write_d263_tag(AVIOContext *pb)
516 {
517 avio_wb32(pb, 0xf); /* size */
518 ffio_wfourcc(pb, "d263");
519 ffio_wfourcc(pb, "FFMP");
520 avio_w8(pb, 0); /* decoder version */
521 /* FIXME use AVCodecContext level/profile, when encoder will set values */
522 avio_w8(pb, 0xa); /* level */
523 avio_w8(pb, 0); /* profile */
524 return 0xf;
525 }
526
527 /* TODO: No idea about these values */
528 static int mov_write_svq3_tag(AVIOContext *pb)
529 {
530 avio_wb32(pb, 0x15);
531 ffio_wfourcc(pb, "SMI ");
532 ffio_wfourcc(pb, "SEQH");
533 avio_wb32(pb, 0x5);
534 avio_wb32(pb, 0xe2c0211d);
535 avio_wb32(pb, 0xc0000000);
536 avio_w8(pb, 0);
537 return 0x15;
538 }
539
540 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
541 {
542 int64_t pos = avio_tell(pb);
543
544 avio_wb32(pb, 0);
545 ffio_wfourcc(pb, "avcC");
546 ff_isom_write_avcc(pb, track->vosData, track->vosLen);
547 return updateSize(pb, pos);
548 }
549
550 /* also used by all avid codecs (dv, imx, meridien) and their variants */
551 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
552 {
553 int i;
554 avio_wb32(pb, 24); /* size */
555 ffio_wfourcc(pb, "ACLR");
556 ffio_wfourcc(pb, "ACLR");
557 ffio_wfourcc(pb, "0001");
558 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
559 avio_wb32(pb, 0); /* unknown */
560
561 avio_wb32(pb, 24); /* size */
562 ffio_wfourcc(pb, "APRG");
563 ffio_wfourcc(pb, "APRG");
564 ffio_wfourcc(pb, "0001");
565 avio_wb32(pb, 1); /* unknown */
566 avio_wb32(pb, 0); /* unknown */
567
568 avio_wb32(pb, 120); /* size */
569 ffio_wfourcc(pb, "ARES");
570 ffio_wfourcc(pb, "ARES");
571 ffio_wfourcc(pb, "0001");
572 avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
573 avio_wb32(pb, track->enc->width);
574 /* values below are based on samples created with quicktime and avid codecs */
575 if (track->vosData[5] & 2) { // interlaced
576 avio_wb32(pb, track->enc->height/2);
577 avio_wb32(pb, 2); /* unknown */
578 avio_wb32(pb, 0); /* unknown */
579 avio_wb32(pb, 4); /* unknown */
580 } else {
581 avio_wb32(pb, track->enc->height);
582 avio_wb32(pb, 1); /* unknown */
583 avio_wb32(pb, 0); /* unknown */
584 if (track->enc->height == 1080)
585 avio_wb32(pb, 5); /* unknown */
586 else
587 avio_wb32(pb, 6); /* unknown */
588 }
589 /* padding */
590 for (i = 0; i < 10; i++)
591 avio_wb64(pb, 0);
592
593 /* extra padding for stsd needed */
594 avio_wb32(pb, 0);
595 return 0;
596 }
597
598 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
599 {
600 int tag = track->enc->codec_tag;
601
602 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
603 return 0;
604
605 if (track->enc->codec_id == CODEC_ID_H264) tag = MKTAG('a','v','c','1');
606 else if (track->enc->codec_id == CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
607 else if (track->enc->codec_id == CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
608 else if (track->enc->codec_id == CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
609 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
610 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
611
612 return tag;
613 }
614
615 static const AVCodecTag codec_ipod_tags[] = {
616 { CODEC_ID_H264, MKTAG('a','v','c','1') },
617 { CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
618 { CODEC_ID_AAC, MKTAG('m','p','4','a') },
619 { CODEC_ID_ALAC, MKTAG('a','l','a','c') },
620 { CODEC_ID_AC3, MKTAG('a','c','-','3') },
621 { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
622 { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
623 { CODEC_ID_NONE, 0 },
624 };
625
626 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
627 {
628 int tag = track->enc->codec_tag;
629
630 // keep original tag for subs, ipod supports both formats
631 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
632 (tag == MKTAG('t','x','3','g') ||
633 tag == MKTAG('t','e','x','t'))))
634 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
635
636 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
637 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
638 "Quicktime/Ipod might not play the file\n");
639
640 return tag;
641 }
642
643 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
644 {
645 int tag;
646
647 if (track->enc->width == 720) /* SD */
648 if (track->enc->height == 480) /* NTSC */
649 if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
650 else tag = MKTAG('d','v','c',' ');
651 else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
652 else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
653 else tag = MKTAG('d','v','p','p');
654 else if (track->enc->height == 720) /* HD 720 line */
655 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
656 else tag = MKTAG('d','v','h','p');
657 else if (track->enc->height == 1080) /* HD 1080 line */
658 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
659 else tag = MKTAG('d','v','h','6');
660 else {
661 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
662 return 0;
663 }
664
665 return tag;
666 }
667
668 static const struct {
669 enum PixelFormat pix_fmt;
670 uint32_t tag;
671 unsigned bps;
672 } mov_pix_fmt_tags[] = {
673 { PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
674 { PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
675 { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
676 { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
677 { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
678 { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
679 { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
680 { PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
681 { PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
682 { PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
683 { PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
684 { PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
685 { PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
686 { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
687 };
688
689 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
690 {
691 int tag = track->enc->codec_tag;
692 int i;
693
694 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
695 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
696 tag = mov_pix_fmt_tags[i].tag;
697 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
698 break;
699 }
700 }
701
702 return tag;
703 }
704
705 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
706 {
707 int tag = track->enc->codec_tag;
708
709 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
710 (track->enc->codec_id == CODEC_ID_DVVIDEO ||
711 track->enc->codec_id == CODEC_ID_RAWVIDEO ||
712 track->enc->codec_id == CODEC_ID_H263 ||
713 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
714 if (track->enc->codec_id == CODEC_ID_DVVIDEO)
715 tag = mov_get_dv_codec_tag(s, track);
716 else if (track->enc->codec_id == CODEC_ID_RAWVIDEO)
717 tag = mov_get_rawvideo_codec_tag(s, track);
718 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
719 tag = ff_codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
720 if (!tag) { // if no mac fcc found, try with Microsoft tags
721 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
722 if (tag)
723 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
724 "the file may be unplayable!\n");
725 }
726 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
727 tag = ff_codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
728 if (!tag) { // if no mac fcc found, try with Microsoft tags
729 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
730 if (ms_tag) {
731 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
732 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
733 "the file may be unplayable!\n");
734 }
735 }
736 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
737 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
738 }
739
740 return tag;
741 }
742
743 static const AVCodecTag codec_3gp_tags[] = {
744 { CODEC_ID_H263, MKTAG('s','2','6','3') },
745 { CODEC_ID_H264, MKTAG('a','v','c','1') },
746 { CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
747 { CODEC_ID_AAC, MKTAG('m','p','4','a') },
748 { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
749 { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
750 { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
751 { CODEC_ID_NONE, 0 },
752 };
753
754 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
755 {
756 int tag = track->enc->codec_tag;
757
758 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
759 tag = mp4_get_codec_tag(s, track);
760 else if (track->mode == MODE_IPOD)
761 tag = ipod_get_codec_tag(s, track);
762 else if (track->mode & MODE_3GP)
763 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
764 else
765 tag = mov_get_codec_tag(s, track);
766
767 return tag;
768 }
769
770 /** Write uuid atom.
771 * Needed to make file play in iPods running newest firmware
772 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
773 */
774 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
775 {
776 avio_wb32(pb, 28);
777 ffio_wfourcc(pb, "uuid");
778 avio_wb32(pb, 0x6b6840f2);
779 avio_wb32(pb, 0x5f244fc5);
780 avio_wb32(pb, 0xba39a51b);
781 avio_wb32(pb, 0xcf0323f3);
782 avio_wb32(pb, 0x0);
783 return 28;
784 }
785
786 static const uint16_t fiel_data[] = {
787 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
788 };
789
790 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
791 {
792 unsigned mov_field_order = 0;
793 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
794 mov_field_order = fiel_data[track->enc->field_order];
795 else
796 return 0;
797 avio_wb32(pb, 10);
798 ffio_wfourcc(pb, "fiel");
799 avio_wb16(pb, mov_field_order);
800 return 10;
801 }
802
803 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
804 {
805 int64_t pos = avio_tell(pb);
806 avio_wb32(pb, 0); /* size */
807 avio_wl32(pb, track->tag); // store it byteswapped
808 avio_wb32(pb, 0); /* Reserved */
809 avio_wb16(pb, 0); /* Reserved */
810 avio_wb16(pb, 1); /* Data-reference index */
811
812 if (track->enc->extradata_size)
813 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
814
815 return updateSize(pb, pos);
816 }
817
818 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
819 {
820 AVRational sar;
821 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
822 track->enc->sample_aspect_ratio.den, INT_MAX);
823
824 avio_wb32(pb, 16);
825 ffio_wfourcc(pb, "pasp");
826 avio_wb32(pb, sar.num);
827 avio_wb32(pb, sar.den);
828 return 16;
829 }
830
831 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
832 {
833 int64_t pos = avio_tell(pb);
834 char compressor_name[32];
835
836 avio_wb32(pb, 0); /* size */
837 avio_wl32(pb, track->tag); // store it byteswapped
838 avio_wb32(pb, 0); /* Reserved */
839 avio_wb16(pb, 0); /* Reserved */
840 avio_wb16(pb, 1); /* Data-reference index */
841
842 avio_wb16(pb, 0); /* Codec stream version */
843 avio_wb16(pb, 0); /* Codec stream revision (=0) */
844 if (track->mode == MODE_MOV) {
845 ffio_wfourcc(pb, "FFMP"); /* Vendor */
846 if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
847 avio_wb32(pb, 0); /* Temporal Quality */
848 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
849 } else {
850 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
851 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
852 }
853 } else {
854 avio_wb32(pb, 0); /* Reserved */
855 avio_wb32(pb, 0); /* Reserved */
856 avio_wb32(pb, 0); /* Reserved */
857 }
858 avio_wb16(pb, track->enc->width); /* Video width */
859 avio_wb16(pb, track->height); /* Video height */
860 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
861 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
862 avio_wb32(pb, 0); /* Data size (= 0) */
863 avio_wb16(pb, 1); /* Frame count (= 1) */
864
865 memset(compressor_name,0,32);
866 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
867 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
868 av_strlcpy(compressor_name,track->enc->codec->name,32);
869 avio_w8(pb, strlen(compressor_name));
870 avio_write(pb, compressor_name, 31);
871
872 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
873 avio_wb16(pb, track->enc->bits_per_coded_sample);
874 else
875 avio_wb16(pb, 0x18); /* Reserved */
876 avio_wb16(pb, 0xffff); /* Reserved */
877 if(track->tag == MKTAG('m','p','4','v'))
878 mov_write_esds_tag(pb, track);
879 else if(track->enc->codec_id == CODEC_ID_H263)
880 mov_write_d263_tag(pb);
881 else if(track->enc->codec_id == CODEC_ID_SVQ3)
882 mov_write_svq3_tag(pb);
883 else if(track->enc->codec_id == CODEC_ID_DNXHD)
884 mov_write_avid_tag(pb, track);
885 else if(track->enc->codec_id == CODEC_ID_H264) {
886 mov_write_avcc_tag(pb, track);
887 if(track->mode == MODE_IPOD)
888 mov_write_uuid_tag_ipod(pb);
889 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
890 mov_write_fiel_tag(pb, track);
891 else if(track->vosLen > 0)
892 mov_write_glbl_tag(pb, track);
893
894 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
895 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
896 mov_write_pasp_tag(pb, track);
897 }
898
899 return updateSize(pb, pos);
900 }
901
902 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
903 {
904 int64_t pos = avio_tell(pb);
905 avio_wb32(pb, 0); /* size */
906 ffio_wfourcc(pb, "rtp ");
907 avio_wb32(pb, 0); /* Reserved */
908 avio_wb16(pb, 0); /* Reserved */
909 avio_wb16(pb, 1); /* Data-reference index */
910
911 avio_wb16(pb, 1); /* Hint track version */
912 avio_wb16(pb, 1); /* Highest compatible version */
913 avio_wb32(pb, track->max_packet_size); /* Max packet size */
914
915 avio_wb32(pb, 12); /* size */
916 ffio_wfourcc(pb, "tims");
917 avio_wb32(pb, track->timescale);
918
919 return updateSize(pb, pos);
920 }
921
922 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
923 {
924 int64_t pos = avio_tell(pb);
925 avio_wb32(pb, 0); /* size */
926 ffio_wfourcc(pb, "stsd");
927 avio_wb32(pb, 0); /* version & flags */
928 avio_wb32(pb, 1); /* entry count */
929 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
930 mov_write_video_tag(pb, track);
931 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
932 mov_write_audio_tag(pb, track);
933 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
934 mov_write_subtitle_tag(pb, track);
935 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
936 mov_write_rtp_tag(pb, track);
937 return updateSize(pb, pos);
938 }
939
940 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
941 {
942 MOVStts *ctts_entries;
943 uint32_t entries = 0;
944 uint32_t atom_size;
945 int i;
946
947 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
948 ctts_entries[0].count = 1;
949 ctts_entries[0].duration = track->cluster[0].cts;
950 for (i=1; i<track->entry; i++) {
951 if (track->cluster[i].cts == ctts_entries[entries].duration) {
952 ctts_entries[entries].count++; /* compress */
953 } else {
954 entries++;
955 ctts_entries[entries].duration = track->cluster[i].cts;
956 ctts_entries[entries].count = 1;
957 }
958 }
959 entries++; /* last one */
960 atom_size = 16 + (entries * 8);
961 avio_wb32(pb, atom_size); /* size */
962 ffio_wfourcc(pb, "ctts");
963 avio_wb32(pb, 0); /* version & flags */
964 avio_wb32(pb, entries); /* entry count */
965 for (i=0; i<entries; i++) {
966 avio_wb32(pb, ctts_entries[i].count);
967 avio_wb32(pb, ctts_entries[i].duration);
968 }
969 av_free(ctts_entries);
970 return atom_size;
971 }
972
973 /* Time to sample atom */
974 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
975 {
976 MOVStts *stts_entries;
977 uint32_t entries = -1;
978 uint32_t atom_size;
979 int i;
980
981 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
982 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
983 stts_entries[0].count = track->sampleCount;
984 stts_entries[0].duration = 1;
985 entries = 1;
986 } else {
987 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
988 for (i=0; i<track->entry; i++) {
989 int64_t duration = i + 1 == track->entry ?
990 track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
991 track->cluster[i+1].dts - track->cluster[i].dts;
992 if (i && duration == stts_entries[entries].duration) {
993 stts_entries[entries].count++; /* compress */
994 } else {
995 entries++;
996 stts_entries[entries].duration = duration;
997 stts_entries[entries].count = 1;
998 }
999 }
1000 entries++; /* last one */
1001 }
1002 atom_size = 16 + (entries * 8);
1003 avio_wb32(pb, atom_size); /* size */
1004 ffio_wfourcc(pb, "stts");
1005 avio_wb32(pb, 0); /* version & flags */
1006 avio_wb32(pb, entries); /* entry count */
1007 for (i=0; i<entries; i++) {
1008 avio_wb32(pb, stts_entries[i].count);
1009 avio_wb32(pb, stts_entries[i].duration);
1010 }
1011 av_free(stts_entries);
1012 return atom_size;
1013 }
1014
1015 static int mov_write_dref_tag(AVIOContext *pb)
1016 {
1017 avio_wb32(pb, 28); /* size */
1018 ffio_wfourcc(pb, "dref");
1019 avio_wb32(pb, 0); /* version & flags */
1020 avio_wb32(pb, 1); /* entry count */
1021
1022 avio_wb32(pb, 0xc); /* size */
1023 ffio_wfourcc(pb, "url ");
1024 avio_wb32(pb, 1); /* version & flags */
1025
1026 return 28;
1027 }
1028
1029 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1030 {
1031 int64_t pos = avio_tell(pb);
1032 avio_wb32(pb, 0); /* size */
1033 ffio_wfourcc(pb, "stbl");
1034 mov_write_stsd_tag(pb, track);
1035 mov_write_stts_tag(pb, track);
1036 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1037 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1038 track->hasKeyframes && track->hasKeyframes < track->entry)
1039 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1040 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1041 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1042 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1043 track->flags & MOV_TRACK_CTTS)
1044 mov_write_ctts_tag(pb, track);
1045 mov_write_stsc_tag(pb, track);
1046 mov_write_stsz_tag(pb, track);
1047 mov_write_stco_tag(pb, track);
1048 return updateSize(pb, pos);
1049 }
1050
1051 static int mov_write_dinf_tag(AVIOContext *pb)
1052 {
1053 int64_t pos = avio_tell(pb);
1054 avio_wb32(pb, 0); /* size */
1055 ffio_wfourcc(pb, "dinf");
1056 mov_write_dref_tag(pb);
1057 return updateSize(pb, pos);
1058 }
1059
1060 static int mov_write_nmhd_tag(AVIOContext *pb)
1061 {
1062 avio_wb32(pb, 12);
1063 ffio_wfourcc(pb, "nmhd");
1064 avio_wb32(pb, 0);
1065 return 12;
1066 }
1067
1068 static int mov_write_gmhd_tag(AVIOContext *pb)
1069 {
1070 avio_wb32(pb, 0x20); /* size */
1071 ffio_wfourcc(pb, "gmhd");
1072 avio_wb32(pb, 0x18); /* gmin size */
1073 ffio_wfourcc(pb, "gmin");/* generic media info */
1074 avio_wb32(pb, 0); /* version & flags */
1075 avio_wb16(pb, 0x40); /* graphics mode = */
1076 avio_wb16(pb, 0x8000); /* opColor (r?) */
1077 avio_wb16(pb, 0x8000); /* opColor (g?) */
1078 avio_wb16(pb, 0x8000); /* opColor (b?) */
1079 avio_wb16(pb, 0); /* balance */
1080 avio_wb16(pb, 0); /* reserved */
1081 return 0x20;
1082 }
1083
1084 static int mov_write_smhd_tag(AVIOContext *pb)
1085 {
1086 avio_wb32(pb, 16); /* size */
1087 ffio_wfourcc(pb, "smhd");
1088 avio_wb32(pb, 0); /* version & flags */
1089 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1090 avio_wb16(pb, 0); /* reserved */
1091 return 16;
1092 }
1093
1094 static int mov_write_vmhd_tag(AVIOContext *pb)
1095 {
1096 avio_wb32(pb, 0x14); /* size (always 0x14) */
1097 ffio_wfourcc(pb, "vmhd");
1098 avio_wb32(pb, 0x01); /* version & flags */
1099 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1100 return 0x14;
1101 }
1102
1103 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1104 {
1105 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1106 int64_t pos = avio_tell(pb);
1107
1108 if (!track) { /* no media --> data handler */
1109 hdlr = "dhlr";
1110 hdlr_type = "url ";
1111 descr = "DataHandler";
1112 } else {
1113 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1114 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1115 hdlr_type = "vide";
1116 descr = "VideoHandler";
1117 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1118 hdlr_type = "soun";
1119 descr = "SoundHandler";
1120 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1121 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1122 else hdlr_type = "text";
1123 descr = "SubtitleHandler";
1124 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1125 hdlr_type = "hint";
1126 descr = "HintHandler";
1127 }
1128 }
1129
1130 avio_wb32(pb, 0); /* size */
1131 ffio_wfourcc(pb, "hdlr");
1132 avio_wb32(pb, 0); /* Version & flags */
1133 avio_write(pb, hdlr, 4); /* handler */
1134 ffio_wfourcc(pb, hdlr_type); /* handler type */
1135 avio_wb32(pb ,0); /* reserved */
1136 avio_wb32(pb ,0); /* reserved */
1137 avio_wb32(pb ,0); /* reserved */
1138 if (!track || track->mode == MODE_MOV)
1139 avio_w8(pb, strlen(descr)); /* pascal string */
1140 avio_write(pb, descr, strlen(descr)); /* handler description */
1141 if (track && track->mode != MODE_MOV)
1142 avio_w8(pb, 0); /* c string */
1143 return updateSize(pb, pos);
1144 }
1145
1146 static int mov_write_hmhd_tag(AVIOContext *pb)
1147 {
1148 /* This atom must be present, but leaving the values at zero
1149 * seems harmless. */
1150 avio_wb32(pb, 28); /* size */
1151 ffio_wfourcc(pb, "hmhd");
1152 avio_wb32(pb, 0); /* version, flags */
1153 avio_wb16(pb, 0); /* maxPDUsize */
1154 avio_wb16(pb, 0); /* avgPDUsize */
1155 avio_wb32(pb, 0); /* maxbitrate */
1156 avio_wb32(pb, 0); /* avgbitrate */
1157 avio_wb32(pb, 0); /* reserved */
1158 return 28;
1159 }
1160
1161 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1162 {
1163 int64_t pos = avio_tell(pb);
1164 avio_wb32(pb, 0); /* size */
1165 ffio_wfourcc(pb, "minf");
1166 if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1167 mov_write_vmhd_tag(pb);
1168 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1169 mov_write_smhd_tag(pb);
1170 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1171 if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1172 else mov_write_nmhd_tag(pb);
1173 } else if (track->tag == MKTAG('r','t','p',' ')) {
1174 mov_write_hmhd_tag(pb);
1175 }
1176 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1177 mov_write_hdlr_tag(pb, NULL);
1178 mov_write_dinf_tag(pb);
1179 mov_write_stbl_tag(pb, track);
1180 return updateSize(pb, pos);
1181 }
1182
1183 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1184 {
1185 int version = track->trackDuration < INT32_MAX ? 0 : 1;
1186
1187 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1188 ffio_wfourcc(pb, "mdhd");
1189 avio_w8(pb, version);
1190 avio_wb24(pb, 0); /* flags */
1191 if (version == 1) {
1192 avio_wb64(pb, track->time);
1193 avio_wb64(pb, track->time);
1194 } else {
1195 avio_wb32(pb, track->time); /* creation time */
1196 avio_wb32(pb, track->time); /* modification time */
1197 }
1198 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1199 (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */
1200 avio_wb16(pb, track->language); /* language */
1201 avio_wb16(pb, 0); /* reserved (quality) */
1202
1203 if(version!=0 && track->mode == MODE_MOV){
1204 av_log(NULL, AV_LOG_ERROR,
1205 "FATAL error, file duration too long for timebase, this file will not be\n"
1206 "playable with quicktime. Choose a different timebase or a different\n"
1207 "container format\n");
1208 }
1209
1210 return 32;
1211 }
1212
1213 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1214 {
1215 int64_t pos = avio_tell(pb);
1216 avio_wb32(pb, 0); /* size */
1217 ffio_wfourcc(pb, "mdia");
1218 mov_write_mdhd_tag(pb, track);
1219 mov_write_hdlr_tag(pb, track);
1220 mov_write_minf_tag(pb, track);
1221 return updateSize(pb, pos);
1222 }
1223
1224 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1225 {
1226 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1227 track->timescale, AV_ROUND_UP);
1228 int version = duration < INT32_MAX ? 0 : 1;
1229
1230 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1231 ffio_wfourcc(pb, "tkhd");
1232 avio_w8(pb, version);
1233 avio_wb24(pb, 0xf); /* flags (track enabled) */
1234 if (version == 1) {
1235 avio_wb64(pb, track->time);
1236 avio_wb64(pb, track->time);
1237 } else {
1238 avio_wb32(pb, track->time); /* creation time */
1239 avio_wb32(pb, track->time); /* modification time */
1240 }
1241 avio_wb32(pb, track->trackID); /* track-id */
1242 avio_wb32(pb, 0); /* reserved */
1243 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1244
1245 avio_wb32(pb, 0); /* reserved */
1246 avio_wb32(pb, 0); /* reserved */
1247 avio_wb16(pb, 0); /* layer */
1248 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1249 /* Volume, only for audio */
1250 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1251 avio_wb16(pb, 0x0100);
1252 else
1253 avio_wb16(pb, 0);
1254 avio_wb16(pb, 0); /* reserved */
1255
1256 /* Matrix structure */
1257 avio_wb32(pb, 0x00010000); /* reserved */
1258 avio_wb32(pb, 0x0); /* reserved */
1259 avio_wb32(pb, 0x0); /* reserved */
1260 avio_wb32(pb, 0x0); /* reserved */
1261 avio_wb32(pb, 0x00010000); /* reserved */
1262 avio_wb32(pb, 0x0); /* reserved */
1263 avio_wb32(pb, 0x0); /* reserved */
1264 avio_wb32(pb, 0x0); /* reserved */
1265 avio_wb32(pb, 0x40000000); /* reserved */
1266
1267 /* Track width and height, for visual only */
1268 if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1269 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1270 if(track->mode == MODE_MOV) {
1271 avio_wb32(pb, track->enc->width << 16);
1272 avio_wb32(pb, track->height << 16);
1273 } else {
1274 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1275 if(!sample_aspect_ratio || track->height != track->enc->height)
1276 sample_aspect_ratio = 1;
1277 avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1278 avio_wb32(pb, track->height*0x10000);
1279 }
1280 }
1281 else {
1282 avio_wb32(pb, 0);
1283 avio_wb32(pb, 0);
1284 }
1285 return 0x5c;
1286 }
1287
1288 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1289 {
1290 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1291 track->enc->sample_aspect_ratio.den);
1292
1293 int64_t pos = avio_tell(pb);
1294
1295 avio_wb32(pb, 0); /* size */
1296 ffio_wfourcc(pb, "tapt");
1297
1298 avio_wb32(pb, 20);
1299 ffio_wfourcc(pb, "clef");
1300 avio_wb32(pb, 0);
1301 avio_wb32(pb, width << 16);
1302 avio_wb32(pb, track->enc->height << 16);
1303
1304 avio_wb32(pb, 20);
1305 ffio_wfourcc(pb, "enof");
1306 avio_wb32(pb, 0);
1307 avio_wb32(pb, track->enc->width << 16);
1308 avio_wb32(pb, track->enc->height << 16);
1309
1310 return updateSize(pb, pos);
1311 }
1312
1313 // This box seems important for the psp playback ... without it the movie seems to hang
1314 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1315 {
1316 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1317 track->timescale, AV_ROUND_UP);
1318 int version = duration < INT32_MAX ? 0 : 1;
1319 int entry_size, entry_count, size;
1320 int64_t delay, start_ct = track->cluster[0].cts;
1321 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1322 track->timescale, AV_ROUND_DOWN);
1323 version |= delay < INT32_MAX ? 0 : 1;
1324
1325 entry_size = (version == 1) ? 20 : 12;
1326 entry_count = 1 + (delay > 0);
1327 size = 24 + entry_count * entry_size;
1328
1329 /* write the atom data */
1330 avio_wb32(pb, size);
1331 ffio_wfourcc(pb, "edts");
1332 avio_wb32(pb, size - 8);
1333 ffio_wfourcc(pb, "elst");
1334 avio_w8(pb, version);
1335 avio_wb24(pb, 0); /* flags */
1336
1337 avio_wb32(pb, entry_count);
1338 if (delay > 0) { /* add an empty edit to delay presentation */
1339 if (version == 1) {
1340 avio_wb64(pb, delay);
1341 avio_wb64(pb, -1);
1342 } else {
1343 avio_wb32(pb, delay);
1344 avio_wb32(pb, -1);
1345 }
1346 avio_wb32(pb, 0x00010000);
1347 }
1348
1349 /* duration */
1350 if (version == 1) {
1351 avio_wb64(pb, duration);
1352 avio_wb64(pb, start_ct);
1353 } else {
1354 avio_wb32(pb, duration);
1355 avio_wb32(pb, start_ct);
1356 }
1357 avio_wb32(pb, 0x00010000);
1358 return size;
1359 }
1360
1361 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1362 {
1363 avio_wb32(pb, 20); // size
1364 ffio_wfourcc(pb, "tref");
1365 avio_wb32(pb, 12); // size (subatom)
1366 avio_wl32(pb, track->tref_tag);
1367 avio_wb32(pb, track->tref_id);
1368 return 20;
1369 }
1370
1371 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1372 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1373 {
1374 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1375 ffio_wfourcc(pb, "uuid");
1376 ffio_wfourcc(pb, "USMT");
1377 avio_wb32(pb, 0x21d24fce);
1378 avio_wb32(pb, 0xbb88695c);
1379 avio_wb32(pb, 0xfac9c740);
1380 avio_wb32(pb, 0x1c); // another size here!
1381 ffio_wfourcc(pb, "MTDT");
1382 avio_wb32(pb, 0x00010012);
1383 avio_wb32(pb, 0x0a);
1384 avio_wb32(pb, 0x55c40000);
1385 avio_wb32(pb, 0x1);
1386 avio_wb32(pb, 0x0);
1387 return 0x34;
1388 }
1389
1390 static int mov_write_udta_sdp(AVIOContext *pb, AVFormatContext *ctx, int index)
1391 {
1392 char buf[1000] = "";
1393 int len;
1394
1395 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0]->codec, NULL, NULL, 0, 0, ctx);
1396 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
1397 len = strlen(buf);
1398
1399 avio_wb32(pb, len + 24);
1400 ffio_wfourcc(pb, "udta");
1401 avio_wb32(pb, len + 16);
1402 ffio_wfourcc(pb, "hnti");
1403 avio_wb32(pb, len + 8);
1404 ffio_wfourcc(pb, "sdp ");
1405 avio_write(pb, buf, len);
1406 return len + 24;
1407 }
1408
1409 static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1410 {
1411 int64_t pos = avio_tell(pb);
1412 avio_wb32(pb, 0); /* size */
1413 ffio_wfourcc(pb, "trak");
1414 mov_write_tkhd_tag(pb, track, st);
1415 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS || track->cluster[0].dts)
1416 mov_write_edts_tag(pb, track); // PSP Movies require edts box
1417 if (track->tref_tag)
1418 mov_write_tref_tag(pb, track);
1419 mov_write_mdia_tag(pb, track);
1420 if (track->mode == MODE_PSP)
1421 mov_write_uuid_tag_psp(pb,track); // PSP Movies require this uuid box
1422 if (track->tag == MKTAG('r','t','p',' '))
1423 mov_write_udta_sdp(pb, track->rtp_ctx, track->trackID);
1424 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1425 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1426 if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1427 mov_write_tapt_tag(pb, track);
1428 };
1429 return updateSize(pb, pos);
1430 }
1431
1432 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1433 {
1434 int i, has_audio = 0, has_video = 0;
1435 int64_t pos = avio_tell(pb);
1436 int audio_profile = mov->iods_audio_profile;
1437 int video_profile = mov->iods_video_profile;
1438 for (i = 0; i < mov->nb_streams; i++) {
1439 if(mov->tracks[i].entry > 0) {
1440 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1441 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1442 }
1443 }
1444 if (audio_profile < 0)
1445 audio_profile = 0xFF - has_audio;
1446 if (video_profile < 0)
1447 video_profile = 0xFF - has_video;
1448 avio_wb32(pb, 0x0); /* size */
1449 ffio_wfourcc(pb, "iods");
1450 avio_wb32(pb, 0); /* version & flags */
1451 putDescr(pb, 0x10, 7);
1452 avio_wb16(pb, 0x004f);
1453 avio_w8(pb, 0xff);
1454 avio_w8(pb, 0xff);
1455 avio_w8(pb, audio_profile);
1456 avio_w8(pb, video_profile);
1457 avio_w8(pb, 0xff);
1458 return updateSize(pb, pos);
1459 }
1460
1461 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1462 {
1463 int maxTrackID = 1, i;
1464 int64_t maxTrackLenTemp, maxTrackLen = 0;
1465 int version;
1466
1467 for (i=0; i<mov->nb_streams; i++) {
1468 if(mov->tracks[i].entry > 0) {
1469 maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration,
1470 MOV_TIMESCALE,
1471 mov->tracks[i].timescale,
1472 AV_ROUND_UP);
1473 if(maxTrackLen < maxTrackLenTemp)
1474 maxTrackLen = maxTrackLenTemp;
1475 if(maxTrackID < mov->tracks[i].trackID)
1476 maxTrackID = mov->tracks[i].trackID;
1477 }
1478 }
1479
1480 version = maxTrackLen < UINT32_MAX ? 0 : 1;
1481 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1482 ffio_wfourcc(pb, "mvhd");
1483 avio_w8(pb, version);
1484 avio_wb24(pb, 0); /* flags */
1485 if (version == 1) {
1486 avio_wb64(pb, mov->time);
1487 avio_wb64(pb, mov->time);
1488 } else {
1489 avio_wb32(pb, mov->time); /* creation time */
1490 avio_wb32(pb, mov->time); /* modification time */
1491 }
1492 avio_wb32(pb, MOV_TIMESCALE);
1493 (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */
1494
1495 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1496 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1497 avio_wb16(pb, 0); /* reserved */
1498 avio_wb32(pb, 0); /* reserved */
1499 avio_wb32(pb, 0); /* reserved */
1500
1501 /* Matrix structure */
1502 avio_wb32(pb, 0x00010000); /* reserved */
1503 avio_wb32(pb, 0x0); /* reserved */
1504 avio_wb32(pb, 0x0); /* reserved */
1505 avio_wb32(pb, 0x0); /* reserved */
1506 avio_wb32(pb, 0x00010000); /* reserved */
1507 avio_wb32(pb, 0x0); /* reserved */
1508 avio_wb32(pb, 0x0); /* reserved */
1509 avio_wb32(pb, 0x0); /* reserved */
1510 avio_wb32(pb, 0x40000000); /* reserved */
1511
1512 avio_wb32(pb, 0); /* reserved (preview time) */
1513 avio_wb32(pb, 0); /* reserved (preview duration) */
1514 avio_wb32(pb, 0); /* reserved (poster time) */
1515 avio_wb32(pb, 0); /* reserved (selection time) */
1516 avio_wb32(pb, 0); /* reserved (selection duration) */
1517 avio_wb32(pb, 0); /* reserved (current time) */
1518 avio_wb32(pb, maxTrackID+1); /* Next track id */
1519 return 0x6c;
1520 }
1521
1522 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1523 AVFormatContext *s)
1524 {
1525 avio_wb32(pb, 33); /* size */
1526 ffio_wfourcc(pb, "hdlr");
1527 avio_wb32(pb, 0);
1528 avio_wb32(pb, 0);
1529 ffio_wfourcc(pb, "mdir");
1530 ffio_wfourcc(pb, "appl");
1531 avio_wb32(pb, 0);
1532 avio_wb32(pb, 0);
1533 avio_w8(pb, 0);
1534 return 33;
1535 }
1536
1537 /* helper function to write a data tag with the specified string as data */
1538 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1539 {
1540 if(long_style){
1541 int size = 16 + strlen(data);
1542 avio_wb32(pb, size); /* size */
1543 ffio_wfourcc(pb, "data");
1544 avio_wb32(pb, 1);
1545 avio_wb32(pb, 0);
1546 avio_write(pb, data, strlen(data));
1547 return size;
1548 }else{
1549 if (!lang)
1550 lang = ff_mov_iso639_to_lang("und", 1);
1551 avio_wb16(pb, strlen(data)); /* string length */
1552 avio_wb16(pb, lang);
1553 avio_write(pb, data, strlen(data));
1554 return strlen(data) + 4;
1555 }
1556 }
1557
1558 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1559 int size = 0;
1560 if (value && value[0]) {
1561 int64_t pos = avio_tell(pb);
1562 avio_wb32(pb, 0); /* size */
1563 ffio_wfourcc(pb, name);
1564 mov_write_string_data_tag(pb, value, lang, long_style);
1565 size= updateSize(pb, pos);
1566 }
1567 return size;
1568 }
1569
1570 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1571 const char *name, const char *tag,
1572 int long_style)
1573 {
1574 int l, lang = 0, len, len2;
1575 AVDictionaryEntry *t, *t2 = NULL;
1576 char tag2[16];
1577
1578 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1579 return 0;
1580
1581 len = strlen(t->key);
1582 snprintf(tag2, sizeof(tag2), "%s-", tag);
1583 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1584 len2 = strlen(t2->key);
1585 if (len2 == len+4 && !strcmp(t->value, t2->value)
1586 && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1587 lang = l;
1588 break;
1589 }
1590 }
1591 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1592 }
1593
1594 /* iTunes track number */
1595 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1596 AVFormatContext *s)
1597 {
1598 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1599 int size = 0, track = t ? atoi(t->value) : 0;
1600 if (track) {
1601 avio_wb32(pb, 32); /* size */
1602 ffio_wfourcc(pb, "trkn");
1603 avio_wb32(pb, 24); /* size */
1604 ffio_wfourcc(pb, "data");
1605 avio_wb32(pb, 0); // 8 bytes empty
1606 avio_wb32(pb, 0);
1607 avio_wb16(pb, 0); // empty
1608 avio_wb16(pb, track); // track number
1609 avio_wb16(pb, 0); // total track number
1610 avio_wb16(pb, 0); // empty
1611 size = 32;
1612 }
1613 return size;
1614 }
1615
1616 /* iTunes meta data list */
1617 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1618 AVFormatContext *s)
1619 {
1620 int64_t pos = avio_tell(pb);
1621 avio_wb32(pb, 0); /* size */
1622 ffio_wfourcc(pb, "ilst");
1623 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
1624 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
1625 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1626 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1627 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
1628 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
1629 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1630 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
1631 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
1632 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1633 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1634 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
1635 mov_write_string_metadata(s, pb, "desc", "description",1);
1636 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
1637 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
1638 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
1639 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
1640 mov_write_trkn_tag(pb, mov, s);
1641 return updateSize(pb, pos);
1642 }
1643
1644 /* iTunes meta data tag */
1645 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1646 AVFormatContext *s)
1647 {
1648 int size = 0;
1649 int64_t pos = avio_tell(pb);
1650 avio_wb32(pb, 0); /* size */
1651 ffio_wfourcc(pb, "meta");
1652 avio_wb32(pb, 0);
1653 mov_write_itunes_hdlr_tag(pb, mov, s);
1654 mov_write_ilst_tag(pb, mov, s);
1655 size = updateSize(pb, pos);
1656 return size;
1657 }
1658
1659 static int utf8len(const uint8_t *b)
1660 {
1661 int len=0;
1662 int val;
1663 while(*b){
1664 GET_UTF8(val, *b++, return -1;)
1665 len++;
1666 }
1667 return len;
1668 }
1669
1670 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1671 {
1672 int val;
1673 while(*b){
1674 GET_UTF8(val, *b++, return -1;)
1675 avio_wb16(pb, val);
1676 }
1677 avio_wb16(pb, 0x00);
1678 return 0;
1679 }
1680
1681 static uint16_t language_code(const char *str)
1682 {
1683 return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
1684 }
1685
1686 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1687 const char *tag, const char *str)
1688 {
1689 int64_t pos = avio_tell(pb);
1690 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
1691 if (!t || !utf8len(t->value))
1692 return 0;
1693 avio_wb32(pb, 0); /* size */
1694 ffio_wfourcc(pb, tag); /* type */
1695 avio_wb32(pb, 0); /* version + flags */
1696 if (!strcmp(tag, "yrrc"))
1697 avio_wb16(pb, atoi(t->value));
1698 else {
1699 avio_wb16(pb, language_code("eng")); /* language */
1700 avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
1701 if (!strcmp(tag, "albm") &&
1702 (t = av_dict_get(s->metadata, "track", NULL, 0)))
1703 avio_w8(pb, atoi(t->value));
1704 }
1705 return updateSize(pb, pos);
1706 }
1707
1708 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1709 {
1710 int64_t pos = avio_tell(pb);
1711 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1712
1713 avio_wb32(pb, 0); // size
1714 ffio_wfourcc(pb, "chpl");
1715 avio_wb32(pb, 0x01000000); // version + flags
1716 avio_wb32(pb, 0); // unknown
1717 avio_w8(pb, nb_chapters);
1718
1719 for (i = 0; i < nb_chapters; i++) {
1720 AVChapter *c = s->chapters[i];
1721 AVDictionaryEntry *t;
1722 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1723
1724 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1725 int len = FFMIN(strlen(t->value), 255);
1726 avio_w8(pb, len);
1727 avio_write(pb, t->value, len);
1728 } else
1729 avio_w8(pb, 0);
1730 }
1731 return updateSize(pb, pos);
1732 }
1733
1734 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1735 AVFormatContext *s)
1736 {
1737 AVIOContext *pb_buf;
1738 int i, ret, size;
1739 uint8_t *buf;
1740
1741 for (i = 0; i < s->nb_streams; i++)
1742 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1743 return 0;
1744 }
1745
1746 ret = avio_open_dyn_buf(&pb_buf);
1747 if(ret < 0)
1748 return ret;
1749
1750 if (mov->mode & MODE_3GP) {
1751 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1752 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1753 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1754 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1755 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1756 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1757 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1758 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1759 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1760 mov_write_string_metadata(s, pb_buf, "\251ART", "artist" , 0);
1761 mov_write_string_metadata(s, pb_buf, "\251nam", "title" , 0);
1762 mov_write_string_metadata(s, pb_buf, "\251aut", "author" , 0);
1763 mov_write_string_metadata(s, pb_buf, "\251alb", "album" , 0);
1764 mov_write_string_metadata(s, pb_buf, "\251day", "date" , 0);
1765 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder" , 0);
1766 mov_write_string_metadata(s, pb_buf, "\251des", "comment" , 0);
1767 mov_write_string_metadata(s, pb_buf, "\251gen", "genre" , 0);
1768 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright" , 0);
1769 } else {
1770 /* iTunes meta data */
1771 mov_write_meta_tag(pb_buf, mov, s);
1772 }
1773
1774 if (s->nb_chapters)
1775 mov_write_chpl_tag(pb_buf, s);
1776
1777 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1778 avio_wb32(pb, size+8);
1779 ffio_wfourcc(pb, "udta");
1780 avio_write(pb, buf, size);
1781 }
1782 av_free(buf);
1783
1784 return 0;
1785 }
1786
1787 static void mov_write_psp_udta_tag(AVIOContext *pb,
1788 const char *str, const char *lang, int type)
1789 {
1790 int len = utf8len(str)+1;
1791 if(len<=0)
1792 return;
1793 avio_wb16(pb, len*2+10); /* size */
1794 avio_wb32(pb, type); /* type */
1795 avio_wb16(pb, language_code(lang)); /* language */
1796 avio_wb16(pb, 0x01); /* ? */
1797 ascii_to_wc(pb, str);
1798 }
1799
1800 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
1801 {
1802 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
1803 int64_t pos, pos2;
1804
1805 if (title) {
1806 pos = avio_tell(pb);
1807 avio_wb32(pb, 0); /* size placeholder*/
1808 ffio_wfourcc(pb, "uuid");
1809 ffio_wfourcc(pb, "USMT");
1810 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1811 avio_wb32(pb, 0xbb88695c);
1812 avio_wb32(pb, 0xfac9c740);
1813
1814 pos2 = avio_tell(pb);
1815 avio_wb32(pb, 0); /* size placeholder*/
1816 ffio_wfourcc(pb, "MTDT");
1817 avio_wb16(pb, 4);
1818
1819 // ?
1820 avio_wb16(pb, 0x0C); /* size */
1821 avio_wb32(pb, 0x0B); /* type */
1822 avio_wb16(pb, language_code("und")); /* language */
1823 avio_wb16(pb, 0x0); /* ? */
1824 avio_wb16(pb, 0x021C); /* data */
1825
1826 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
1827 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
1828 // snprintf(dt,32,"%04d/%02d/%02d %02d:%02d:%02d",t_st->tm_year+1900,t_st->tm_mon+1,t_st->tm_mday,t_st->tm_hour,t_st->tm_min,t_st->tm_sec);
1829 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
1830
1831 updateSize(pb, pos2);
1832 return updateSize(pb, pos);
1833 }
1834
1835 return 0;
1836 }
1837
1838 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
1839 AVFormatContext *s)
1840 {
1841 int i;
1842 int64_t pos = avio_tell(pb);
1843 avio_wb32(pb, 0); /* size placeholder*/
1844 ffio_wfourcc(pb, "moov");
1845
1846 for (i=0; i<mov->nb_streams; i++) {
1847 if(mov->tracks[i].entry <= 0) continue;
1848
1849 mov->tracks[i].time = mov->time;
1850 mov->tracks[i].trackID = i+1;
1851 }
1852
1853 if (mov->chapter_track)
1854 for (i=0; i<s->nb_streams; i++) {
1855 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
1856 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID;
1857 }
1858 for (i = 0; i < mov->nb_streams; i++) {
1859 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
1860 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
1861 mov->tracks[i].tref_id =
1862 mov->tracks[mov->tracks[i].src_track].trackID;
1863 }
1864 }
1865
1866 mov_write_mvhd_tag(pb, mov);
1867 if (mov->mode != MODE_MOV && !mov->iods_skip)
1868 mov_write_iods_tag(pb, mov);
1869 for (i=0; i<mov->nb_streams; i++) {
1870 if(mov->tracks[i].entry > 0) {
1871 mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
1872 }
1873 }
1874
1875 if (mov->mode == MODE_PSP)
1876 mov_write_uuidusmt_tag(pb, s);
1877 else
1878 mov_write_udta_tag(pb, mov, s);
1879
1880 return updateSize(pb, pos);
1881 }
1882
1883 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
1884 {
1885 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
1886 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
1887
1888 mov->mdat_pos = avio_tell(pb);
1889 avio_wb32(pb, 0); /* size placeholder*/
1890 ffio_wfourcc(pb, "mdat");
1891 return 0;
1892 }
1893
1894 /* TODO: This needs to be more general */
1895 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
1896 {
1897 MOVMuxContext *mov = s->priv_data;
1898 int64_t pos = avio_tell(pb);
1899 int has_h264 = 0, has_video = 0;
1900 int minor = 0x200;
1901 int i;
1902
1903 for (i = 0; i < s->nb_streams; i++) {
1904 AVStream *st = s->streams[i];
1905 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1906 has_video = 1;
1907 if (st->codec->codec_id == CODEC_ID_H264)
1908 has_h264 = 1;
1909 }
1910
1911 avio_wb32(pb, 0); /* size */
1912 ffio_wfourcc(pb, "ftyp");
1913
1914 if (mov->mode == MODE_3GP) {
1915 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
1916 minor = has_h264 ? 0x100 : 0x200;
1917 } else if (mov->mode & MODE_3G2) {
1918 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
1919 minor = has_h264 ? 0x20000 : 0x10000;
1920 }else if (mov->mode == MODE_PSP)
1921 ffio_wfourcc(pb, "MSNV");
1922 else if (mov->mode == MODE_MP4)
1923 ffio_wfourcc(pb, "isom");
1924 else if (mov->mode == MODE_IPOD)
1925 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
1926 else
1927 ffio_wfourcc(pb, "qt ");
1928
1929 avio_wb32(pb, minor);
1930
1931 if(mov->mode == MODE_MOV)
1932 ffio_wfourcc(pb, "qt ");
1933 else{
1934 ffio_wfourcc(pb, "isom");
1935 ffio_wfourcc(pb, "iso2");
1936 if(has_h264)
1937 ffio_wfourcc(pb, "avc1");
1938 }
1939
1940 if (mov->mode == MODE_3GP)
1941 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
1942 else if (mov->mode & MODE_3G2)
1943 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
1944 else if (mov->mode == MODE_PSP)
1945 ffio_wfourcc(pb, "MSNV");
1946 else if (mov->mode == MODE_MP4)
1947 ffio_wfourcc(pb, "mp41");
1948 return updateSize(pb, pos);
1949 }
1950
1951 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
1952 {
1953 AVCodecContext *VideoCodec = s->streams[0]->codec;
1954 AVCodecContext *AudioCodec = s->streams[1]->codec;
1955 int AudioRate = AudioCodec->sample_rate;
1956 int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);
1957 int audio_kbitrate= AudioCodec->bit_rate / 1000;
1958 int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate);
1959
1960 avio_wb32(pb, 0x94); /* size */
1961 ffio_wfourcc(pb, "uuid");
1962 ffio_wfourcc(pb, "PROF");
1963
1964 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1965 avio_wb32(pb, 0xbb88695c);
1966 avio_wb32(pb, 0xfac9c740);
1967
1968 avio_wb32(pb, 0x0); /* ? */
1969 avio_wb32(pb, 0x3); /* 3 sections ? */
1970
1971 avio_wb32(pb, 0x14); /* size */
1972 ffio_wfourcc(pb, "FPRF");
1973 avio_wb32(pb, 0x0); /* ? */
1974 avio_wb32(pb, 0x0); /* ? */
1975 avio_wb32(pb, 0x0); /* ? */
1976
1977 avio_wb32(pb, 0x2c); /* size */
1978 ffio_wfourcc(pb, "APRF");/* audio */
1979 avio_wb32(pb, 0x0);
1980 avio_wb32(pb, 0x2); /* TrackID */
1981 ffio_wfourcc(pb, "mp4a");
1982 avio_wb32(pb, 0x20f);
1983 avio_wb32(pb, 0x0);
1984 avio_wb32(pb, audio_kbitrate);
1985 avio_wb32(pb, audio_kbitrate);
1986 avio_wb32(pb, AudioRate);
1987 avio_wb32(pb, AudioCodec->channels);
1988
1989 avio_wb32(pb, 0x34); /* size */
1990 ffio_wfourcc(pb, "VPRF"); /* video */
1991 avio_wb32(pb, 0x0);
1992 avio_wb32(pb, 0x1); /* TrackID */
1993 if (VideoCodec->codec_id == CODEC_ID_H264) {
1994 ffio_wfourcc(pb, "avc1");
1995 avio_wb16(pb, 0x014D);
1996 avio_wb16(pb, 0x0015);
1997 } else {
1998 ffio_wfourcc(pb, "mp4v");
1999 avio_wb16(pb, 0x0000);
2000 avio_wb16(pb, 0x0103);
2001 }
2002 avio_wb32(pb, 0x0);
2003 avio_wb32(pb, video_kbitrate);
2004 avio_wb32(pb, video_kbitrate);
2005 avio_wb32(pb, FrameRate);
2006 avio_wb32(pb, FrameRate);
2007 avio_wb16(pb, VideoCodec->width);
2008 avio_wb16(pb, VideoCodec->height);
2009 avio_wb32(pb, 0x010001); /* ? */
2010 }
2011
2012 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2013 {
2014 uint32_t c = -1;
2015 int i, closed_gop = 0;
2016
2017 for (i = 0; i < pkt->size - 4; i++) {
2018 c = (c<<8) + pkt->data[i];
2019 if (c == 0x1b8) { // gop
2020 closed_gop = pkt->data[i+4]>>6 & 0x01;
2021 } else if (c == 0x100) { // pic
2022 int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
2023 if (!temp_ref || closed_gop) // I picture is not reordered
2024 *flags = MOV_SYNC_SAMPLE;
2025 else
2026 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2027 break;
2028 }
2029 }
2030 return 0;
2031 }
2032
2033 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
2034 {
2035 MOVMuxContext *mov = s->priv_data;
2036 AVIOContext *pb = s->pb;
2037 MOVTrack *trk = &mov->tracks[pkt->stream_index];
2038 AVCodecContext *enc = trk->enc;
2039 unsigned int samplesInChunk = 0;
2040 int size= pkt->size;
2041 uint8_t *reformatted_data = NULL;
2042
2043 if (!s->pb->seekable) return 0; /* Can't handle that */
2044 if (!size) return 0; /* Discard 0 sized packets */
2045
2046 if (enc->codec_id == CODEC_ID_AMR_NB) {
2047 /* We must find out how many AMR blocks there are in one packet */
2048 static uint16_t packed_size[16] =
2049 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
2050 int len = 0;
2051
2052 while (len < size && samplesInChunk < 100) {
2053 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
2054 samplesInChunk++;
2055 }
2056 if(samplesInChunk > 1){
2057 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
2058 return -1;
2059 }
2060 } else if (trk->sampleSize)
2061 samplesInChunk = size/trk->sampleSize;
2062 else
2063 samplesInChunk = 1;
2064
2065 /* copy extradata if it exists */
2066 if (trk->vosLen == 0 && enc->extradata_size > 0) {
2067 trk->vosLen = enc->extradata_size;
2068 trk->vosData = av_malloc(trk->vosLen);
2069 memcpy(trk->vosData, enc->extradata, trk->vosLen);
2070 }
2071
2072 if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
2073 /* from x264 or from bytestream h264 */
2074 /* nal reformating needed */
2075 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
2076 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
2077 &size);
2078 avio_write(pb, reformatted_data, size);
2079 } else {
2080 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
2081 }
2082 } else {
2083 avio_write(pb, pkt->data, size);
2084 }
2085
2086 if ((enc->codec_id == CODEC_ID_DNXHD ||
2087 enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) {
2088 /* copy frame to create needed atoms */
2089 trk->vosLen = size;
2090 trk->vosData = av_malloc(size);
2091 if (!trk->vosData)
2092 return AVERROR(ENOMEM);
2093 memcpy(trk->vosData, pkt->data, size);
2094 }
2095
2096 if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
2097 trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));
2098 if (!trk->cluster)
2099 return -1;
2100 }
2101
2102 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2103 trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
2104 trk->cluster[trk->entry].size = size;
2105 trk->cluster[trk->entry].entries = samplesInChunk;
2106 trk->cluster[trk->entry].dts = pkt->dts;
2107 trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
2108
2109 if (pkt->pts == AV_NOPTS_VALUE) {
2110 av_log(s, AV_LOG_WARNING, "pts has no value\n");
2111 pkt->pts = pkt->dts;
2112 }
2113 if (pkt->dts != pkt->pts)
2114 trk->flags |= MOV_TRACK_CTTS;
2115 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2116 trk->cluster[trk->entry].flags = 0;
2117 if (pkt->flags & AV_PKT_FLAG_KEY) {
2118 if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO &&
2119 trk->entry > 0) { // force sync sample for the first key frame
2120 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2121 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2122 trk->flags |= MOV_TRACK_STPS;
2123 } else {
2124 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2125 }
2126 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2127 trk->hasKeyframes++;
2128 }
2129 trk->entry++;
2130 trk->sampleCount += samplesInChunk;
2131 mov->mdat_size += size;
2132
2133 avio_flush(pb);
2134
2135 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2136 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
2137 reformatted_data, size);
2138 av_free(reformatted_data);
2139 return 0;
2140 }
2141
2142 // QuickTime chapters involve an additional text track with the chapter names
2143 // as samples, and a tref pointing from the other tracks to the chapter one.
2144 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
2145 {
2146 MOVMuxContext *mov = s->priv_data;
2147 MOVTrack *track = &mov->tracks[tracknum];
2148 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
2149 int i, len;
2150
2151 track->mode = mov->mode;
2152 track->tag = MKTAG('t','e','x','t');
2153 track->timescale = MOV_TIMESCALE;
2154 track->enc = avcodec_alloc_context3(NULL);
2155 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
2156
2157 for (i = 0; i < s->nb_chapters; i++) {
2158 AVChapter *c = s->chapters[i];
2159 AVDictionaryEntry *t;
2160
2161 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
2162 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
2163 pkt.duration = end - pkt.dts;
2164
2165 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2166 len = strlen(t->value);
2167 pkt.size = len+2;
2168 pkt.data = av_malloc(pkt.size);
2169 AV_WB16(pkt.data, len);
2170 memcpy(pkt.data+2, t->value, len);
2171 ff_mov_write_packet(s, &pkt);
2172 av_freep(&pkt.data);
2173 }
2174 }
2175 }
2176
2177 static int mov_write_header(AVFormatContext *s)
2178 {
2179 AVIOContext *pb = s->pb;
2180 MOVMuxContext *mov = s->priv_data;
2181 AVDictionaryEntry *t;
2182 int i, hint_track = 0;
2183
2184 if (!s->pb->seekable) {
2185 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
2186 return -1;
2187 }
2188
2189 /* Default mode == MP4 */
2190 mov->mode = MODE_MP4;
2191
2192 if (s->oformat != NULL) {
2193 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
2194 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
2195 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
2196 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
2197 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
2198
2199 mov_write_ftyp_tag(pb,s);
2200 if (mov->mode == MODE_PSP) {
2201 if (s->nb_streams != 2) {
2202 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
2203 return -1;
2204 }
2205 mov_write_uuidprof_tag(pb,s);
2206 }
2207 }
2208
2209 mov->nb_streams = s->nb_streams;
2210 if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
2211 mov->chapter_track = mov->nb_streams++;
2212
2213 #if FF_API_FLAG_RTP_HINT
2214 if (s->flags & AVFMT_FLAG_RTP_HINT) {
2215 av_log(s, AV_LOG_WARNING, "The RTP_HINT flag is deprecated, enable it "
2216 "via the -movflags rtphint muxer option "
2217 "instead.\n");
2218 mov->flags |= FF_MOV_FLAG_RTP_HINT;
2219 }
2220 #endif
2221 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
2222 /* Add hint tracks for each audio and video stream */
2223 hint_track = mov->nb_streams;
2224 for (i = 0; i < s->nb_streams; i++) {
2225 AVStream *st = s->streams[i];
2226 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2227 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2228 mov->nb_streams++;
2229 }
2230 }
2231 }
2232
2233 mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
2234 if (!mov->tracks)
2235 return AVERROR(ENOMEM);
2236
2237 for(i=0; i<s->nb_streams; i++){
2238 AVStream *st= s->streams[i];
2239 MOVTrack *track= &mov->tracks[i];
2240 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
2241
2242 track->enc = st->codec;
2243 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
2244 if (track->language < 0)
2245 track->language = 0;
2246 track->mode = mov->mode;
2247 track->tag = mov_find_codec_tag(s, track);
2248 if (!track->tag) {
2249 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
2250 "codec not currently supported in container\n", i);
2251 goto error;
2252 }
2253 /* If hinting of this track is enabled by a later hint track,
2254 * this is updated. */
2255 track->hint_track = -1;
2256 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
2257 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
2258 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
2259 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
2260 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
2261 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
2262 goto error;
2263 }
2264 track->height = track->tag>>24 == 'n' ? 486 : 576;
2265 }
2266 track->timescale = st->codec->time_base.den;
2267 if (track->mode == MODE_MOV && track->timescale > 100000)
2268 av_log(s, AV_LOG_WARNING,
2269 "WARNING codec timebase is very high. If duration is too long,\n"
2270 "file may not be playable by quicktime. Specify a shorter timebase\n"
2271 "or choose different container.\n");
2272 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
2273 track->timescale = st->codec->sample_rate;
2274 /* set sampleSize for PCM and ADPCM */
2275 if (av_get_bits_per_sample(st->codec->codec_id)) {
2276 if (!st->codec->block_align) {
2277 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
2278 goto error;
2279 }
2280 track->sampleSize = st->codec->block_align;
2281 }
2282 /* set audio_vbr for compressed audio */
2283 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
2284 if (!st->codec->frame_size) {
2285 av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
2286 goto error;
2287 }
2288 track->audio_vbr = 1;
2289 }
2290 if (track->mode != MODE_MOV) {
2291 if (track->timescale > UINT16_MAX) {
2292 av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
2293 "sample rate %dhz\n", i, track->timescale);
2294 goto error;
2295 }
2296 if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
2297 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
2298 i, track->enc->sample_rate);
2299 goto error;
2300 }
2301 }
2302 }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
2303 track->timescale = st->codec->time_base.den;
2304 }
2305 if (!track->height)
2306 track->height = st->codec->height;
2307
2308 avpriv_set_pts_info(st, 64, 1, track->timescale);
2309 }
2310
2311 mov_write_mdat_tag(pb, mov);
2312
2313 #if FF_API_TIMESTAMP
2314 if (s->timestamp)
2315 mov->time = s->timestamp;
2316 else
2317 #endif
2318 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
2319 mov->time = ff_iso8601_to_unix_time(t->value);
2320 mov->time += 0x7C25B080; //1970 based -> 1904 based
2321
2322 if (mov->chapter_track)
2323 mov_create_chapter_track(s, mov->chapter_track);
2324
2325 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
2326 /* Initialize the hint tracks for each audio and video stream */
2327 for (i = 0; i < s->nb_streams; i++) {
2328 AVStream *st = s->streams[i];
2329 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2330 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2331 ff_mov_init_hinting(s, hint_track, i);
2332 hint_track++;
2333 }
2334 }
2335 }
2336
2337 avio_flush(pb);
2338
2339 return 0;
2340 error:
2341 av_freep(&mov->tracks);
2342 return -1;
2343 }
2344
2345 static int mov_write_trailer(AVFormatContext *s)
2346 {
2347 MOVMuxContext *mov = s->priv_data;
2348 AVIOContext *pb = s->pb;
2349 int res = 0;
2350 int i;
2351
2352 int64_t moov_pos = avio_tell(pb);
2353
2354 /* Write size of mdat tag */
2355 if (mov->mdat_size+8 <= UINT32_MAX) {
2356 avio_seek(pb, mov->mdat_pos, SEEK_SET);
2357 avio_wb32(pb, mov->mdat_size+8);
2358 } else {
2359 /* overwrite 'wide' placeholder atom */
2360 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
2361 avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */
2362 ffio_wfourcc(pb, "mdat");
2363 avio_wb64(pb, mov->mdat_size+16);
2364 }
2365 avio_seek(pb, moov_pos, SEEK_SET);
2366
2367 mov_write_moov_tag(pb, mov, s);
2368
2369 if (mov->chapter_track)
2370 av_freep(&mov->tracks[mov->chapter_track].enc);
2371
2372 for (i=0; i<mov->nb_streams; i++) {
2373 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
2374 ff_mov_close_hinting(&mov->tracks[i]);
2375 av_freep(&mov->tracks[i].cluster);
2376
2377 if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);
2378
2379 }
2380
2381 avio_flush(pb);
2382
2383 av_freep(&mov->tracks);
2384
2385 return res;
2386 }
2387
2388 #if CONFIG_MOV_MUXER
2389 MOV_CLASS(mov)
2390 AVOutputFormat ff_mov_muxer = {
2391 .name = "mov",
2392 .long_name = NULL_IF_CONFIG_SMALL("MOV format"),
2393 .extensions = "mov",
2394 .priv_data_size = sizeof(MOVMuxContext),
2395 .audio_codec = CODEC_ID_AAC,
2396 #if CONFIG_LIBX264_ENCODER
2397 .video_codec = CODEC_ID_H264,
2398 #else
2399 .video_codec = CODEC_ID_MPEG4,
2400 #endif
2401 .write_header = mov_write_header,
2402 .write_packet = ff_mov_write_packet,
2403 .write_trailer = mov_write_trailer,
2404 .flags = AVFMT_GLOBALHEADER,
2405 .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},
2406 .priv_class = &mov_muxer_class,
2407 };
2408 #endif
2409 #if CONFIG_TGP_MUXER
2410 MOV_CLASS(tgp)
2411 AVOutputFormat ff_tgp_muxer = {
2412 .name = "3gp",
2413 .long_name = NULL_IF_CONFIG_SMALL("3GP format"),
2414 .extensions = "3gp",
2415 .priv_data_size = sizeof(MOVMuxContext),
2416 .audio_codec = CODEC_ID_AMR_NB,
2417 .video_codec = CODEC_ID_H263,
2418 .write_header = mov_write_header,
2419 .write_packet = ff_mov_write_packet,
2420 .write_trailer = mov_write_trailer,
2421 .flags = AVFMT_GLOBALHEADER,
2422 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2423 .priv_class = &tgp_muxer_class,
2424 };
2425 #endif
2426 #if CONFIG_MP4_MUXER
2427 MOV_CLASS(mp4)
2428 AVOutputFormat ff_mp4_muxer = {
2429 .name = "mp4",
2430 .long_name = NULL_IF_CONFIG_SMALL("MP4 format"),
2431 .mime_type = "application/mp4",
2432 .extensions = "mp4",
2433 .priv_data_size = sizeof(MOVMuxContext),
2434 .audio_codec = CODEC_ID_AAC,
2435 #if CONFIG_LIBX264_ENCODER
2436 .video_codec = CODEC_ID_H264,
2437 #else
2438 .video_codec = CODEC_ID_MPEG4,
2439 #endif
2440 .write_header = mov_write_header,
2441 .write_packet = ff_mov_write_packet,
2442 .write_trailer = mov_write_trailer,
2443 .flags = AVFMT_GLOBALHEADER,
2444 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2445 .priv_class = &mp4_muxer_class,
2446 };
2447 #endif
2448 #if CONFIG_PSP_MUXER
2449 MOV_CLASS(psp)
2450 AVOutputFormat ff_psp_muxer = {
2451 .name = "psp",
2452 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 format"),
2453 .extensions = "mp4,psp",
2454 .priv_data_size = sizeof(MOVMuxContext),
2455 .audio_codec = CODEC_ID_AAC,
2456 #if CONFIG_LIBX264_ENCODER
2457 .video_codec = CODEC_ID_H264,
2458 #else
2459 .video_codec = CODEC_ID_MPEG4,
2460 #endif
2461 .write_header = mov_write_header,
2462 .write_packet = ff_mov_write_packet,
2463 .write_trailer = mov_write_trailer,
2464 .flags = AVFMT_GLOBALHEADER,
2465 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2466 .priv_class = &psp_muxer_class,
2467 };
2468 #endif
2469 #if CONFIG_TG2_MUXER
2470 MOV_CLASS(tg2)
2471 AVOutputFormat ff_tg2_muxer = {
2472 .name = "3g2",
2473 .long_name = NULL_IF_CONFIG_SMALL("3GP2 format"),
2474 .extensions = "3g2",
2475 .priv_data_size = sizeof(MOVMuxContext),
2476 .audio_codec = CODEC_ID_AMR_NB,
2477 .video_codec = CODEC_ID_H263,
2478 .write_header = mov_write_header,
2479 .write_packet = ff_mov_write_packet,
2480 .write_trailer = mov_write_trailer,
2481 .flags = AVFMT_GLOBALHEADER,
2482 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2483 .priv_class = &tg2_muxer_class,
2484 };
2485 #endif
2486 #if CONFIG_IPOD_MUXER
2487 MOV_CLASS(ipod)
2488 AVOutputFormat ff_ipod_muxer = {
2489 .name = "ipod",
2490 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),
2491 .mime_type = "application/mp4",
2492 .extensions = "m4v,m4a",
2493 .priv_data_size = sizeof(MOVMuxContext),
2494 .audio_codec = CODEC_ID_AAC,
2495 .video_codec = CODEC_ID_H264,
2496 .write_header = mov_write_header,
2497 .write_packet = ff_mov_write_packet,
2498 .write_trailer = mov_write_trailer,
2499 .flags = AVFMT_GLOBALHEADER,
2500 .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},
2501 .priv_class = &ipod_muxer_class,
2502 };
2503 #endif