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>
7 * This file is part of FFmpeg.
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.
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.
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
26 #include "avio_internal.h"
31 #include "libavcodec/get_bits.h"
32 #include "libavcodec/put_bits.h"
34 #include "libavutil/avstring.h"
35 #include "libavutil/intfloat_readwrite.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/opt.h"
38 #include "libavutil/dict.h"
44 static const AVOption options[] = {
45 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
46 { "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" },
47 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
51 #define MOV_CLASS(flavor)\
52 static const AVClass flavor ## _muxer_class = {\
53 .class_name = #flavor " muxer",\
54 .item_name = av_default_item_name,\
56 .version = LIBAVUTIL_VERSION_INT,\
59 //FIXME support 64 bit variant with wide placeholders
60 static int64_t updateSize(AVIOContext *pb, int64_t pos)
62 int64_t curpos = avio_tell(pb);
63 avio_seek(pb, pos, SEEK_SET);
64 avio_wb32(pb, curpos - pos); /* rewrite size */
65 avio_seek(pb, curpos, SEEK_SET);
70 /* Chunk offset atom */
71 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
74 int mode64 = 0; // use 32 bit size variant if possible
75 int64_t pos = avio_tell(pb);
76 avio_wb32(pb, 0); /* size */
77 if (pos > UINT32_MAX) {
79 ffio_wfourcc(pb, "co64");
81 ffio_wfourcc(pb, "stco");
82 avio_wb32(pb, 0); /* version & flags */
83 avio_wb32(pb, track->entry); /* entry count */
84 for (i=0; i<track->entry; i++) {
86 avio_wb64(pb, track->cluster[i].pos);
88 avio_wb32(pb, track->cluster[i].pos);
90 return updateSize(pb, pos);
93 /* Sample size atom */
94 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
97 int i, j, entries = 0, tst = -1, oldtst = -1;
99 int64_t pos = avio_tell(pb);
100 avio_wb32(pb, 0); /* size */
101 ffio_wfourcc(pb, "stsz");
102 avio_wb32(pb, 0); /* version & flags */
104 for (i=0; i<track->entry; i++) {
105 tst = track->cluster[i].size/track->cluster[i].entries;
106 if(oldtst != -1 && tst != oldtst) {
110 entries += track->cluster[i].entries;
113 int sSize = track->cluster[0].size/track->cluster[0].entries;
114 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
115 avio_wb32(pb, sSize); // sample size
116 avio_wb32(pb, entries); // sample count
119 avio_wb32(pb, 0); // sample size
120 avio_wb32(pb, entries); // sample count
121 for (i=0; i<track->entry; i++) {
122 for (j=0; j<track->cluster[i].entries; j++) {
123 avio_wb32(pb, track->cluster[i].size /
124 track->cluster[i].entries);
128 return updateSize(pb, pos);
131 /* Sample to chunk atom */
132 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
134 int index = 0, oldval = -1, i;
135 int64_t entryPos, curpos;
137 int64_t pos = avio_tell(pb);
138 avio_wb32(pb, 0); /* size */
139 ffio_wfourcc(pb, "stsc");
140 avio_wb32(pb, 0); // version & flags
141 entryPos = avio_tell(pb);
142 avio_wb32(pb, track->entry); // entry count
143 for (i=0; i<track->entry; i++) {
144 if(oldval != track->cluster[i].samplesInChunk)
146 avio_wb32(pb, i+1); // first chunk
147 avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
148 avio_wb32(pb, 0x1); // sample description index
149 oldval = track->cluster[i].samplesInChunk;
153 curpos = avio_tell(pb);
154 avio_seek(pb, entryPos, SEEK_SET);
155 avio_wb32(pb, index); // rewrite size
156 avio_seek(pb, curpos, SEEK_SET);
158 return updateSize(pb, pos);
161 /* Sync sample atom */
162 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
164 int64_t curpos, entryPos;
166 int64_t pos = avio_tell(pb);
167 avio_wb32(pb, 0); // size
168 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
169 avio_wb32(pb, 0); // version & flags
170 entryPos = avio_tell(pb);
171 avio_wb32(pb, track->entry); // entry count
172 for (i=0; i<track->entry; i++) {
173 if (track->cluster[i].flags & flag) {
178 curpos = avio_tell(pb);
179 avio_seek(pb, entryPos, SEEK_SET);
180 avio_wb32(pb, index); // rewrite size
181 avio_seek(pb, curpos, SEEK_SET);
182 return updateSize(pb, pos);
185 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
187 avio_wb32(pb, 0x11); /* size */
188 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
189 else ffio_wfourcc(pb, "damr");
190 ffio_wfourcc(pb, "FFMP");
191 avio_w8(pb, 0); /* decoder version */
193 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
194 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
195 avio_w8(pb, 0x01); /* Frames per sample */
199 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
204 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
206 if (track->vosLen < 7)
210 ffio_wfourcc(pb, "dac3");
212 init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8);
213 fscod = get_bits(&gbc, 2);
214 frmsizecod = get_bits(&gbc, 6);
215 bsid = get_bits(&gbc, 5);
216 bsmod = get_bits(&gbc, 3);
217 acmod = get_bits(&gbc, 3);
219 skip_bits(&gbc, 2); // dsurmod
221 if ((acmod & 1) && acmod != 1)
222 skip_bits(&gbc, 2); // cmixlev
224 skip_bits(&gbc, 2); // surmixlev
226 lfeon = get_bits1(&gbc);
228 init_put_bits(&pbc, buf, sizeof(buf));
229 put_bits(&pbc, 2, fscod);
230 put_bits(&pbc, 5, bsid);
231 put_bits(&pbc, 3, bsmod);
232 put_bits(&pbc, 3, acmod);
233 put_bits(&pbc, 1, lfeon);
234 put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
235 put_bits(&pbc, 5, 0); // reserved
237 flush_put_bits(&pbc);
238 avio_write(pb, buf, sizeof(buf));
244 * This function writes extradata "as is".
245 * Extradata must be formated like a valid atom (with size and tag)
247 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
249 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
250 return track->enc->extradata_size;
253 static int mov_write_enda_tag(AVIOContext *pb)
256 ffio_wfourcc(pb, "enda");
257 avio_wb16(pb, 1); /* little endian */
261 static void putDescr(AVIOContext *pb, int tag, unsigned int size)
266 avio_w8(pb, (size>>(7*i)) | 0x80);
267 avio_w8(pb, size & 0x7F);
270 static unsigned compute_avg_bitrate(MOVTrack *track)
274 for (i = 0; i < track->entry; i++)
275 size += track->cluster[i].size;
276 return size * 8 * track->timescale / track->trackDuration;
279 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
281 int64_t pos = avio_tell(pb);
282 int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0;
283 unsigned avg_bitrate;
285 avio_wb32(pb, 0); // size
286 ffio_wfourcc(pb, "esds");
287 avio_wb32(pb, 0); // Version
290 putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1);
291 avio_wb16(pb, track->trackID);
292 avio_w8(pb, 0x00); // flags (= no flags)
294 // DecoderConfig descriptor
295 putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
297 // Object type indication
298 if ((track->enc->codec_id == CODEC_ID_MP2 ||
299 track->enc->codec_id == CODEC_ID_MP3) &&
300 track->enc->sample_rate > 24000)
301 avio_w8(pb, 0x6B); // 11172-3
303 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
305 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
306 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
307 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
308 avio_w8(pb, 0x15); // flags (= Audiostream)
310 avio_w8(pb, 0x11); // flags (= Visualstream)
312 avio_w8(pb, track->enc->rc_buffer_size>>(3+16)); // Buffersize DB (24 bits)
313 avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
315 avg_bitrate = compute_avg_bitrate(track);
316 // maxbitrate (FIXME should be max rate in any 1 sec window)
317 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
318 avio_wb32(pb, avg_bitrate);
321 // DecoderSpecific info descriptor
322 putDescr(pb, 0x05, track->vosLen);
323 avio_write(pb, track->vosData, track->vosLen);
327 putDescr(pb, 0x06, 1);
329 return updateSize(pb, pos);
332 static int mov_pcm_le_gt16(enum CodecID codec_id)
334 return codec_id == CODEC_ID_PCM_S24LE ||
335 codec_id == CODEC_ID_PCM_S32LE ||
336 codec_id == CODEC_ID_PCM_F32LE ||
337 codec_id == CODEC_ID_PCM_F64LE;
340 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
342 int64_t pos = avio_tell(pb);
344 avio_wl32(pb, track->tag); // store it byteswapped
345 track->enc->codec_tag = av_bswap16(track->tag >> 16);
346 ff_put_wav_header(pb, track->enc);
347 return updateSize(pb, pos);
350 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
352 int64_t pos = avio_tell(pb);
354 avio_wb32(pb, 0); /* size */
355 ffio_wfourcc(pb, "wave");
357 avio_wb32(pb, 12); /* size */
358 ffio_wfourcc(pb, "frma");
359 avio_wl32(pb, track->tag);
361 if (track->enc->codec_id == CODEC_ID_AAC) {
362 /* useless atom needed by mplayer, ipod, not needed by quicktime */
363 avio_wb32(pb, 12); /* size */
364 ffio_wfourcc(pb, "mp4a");
366 mov_write_esds_tag(pb, track);
367 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
368 mov_write_enda_tag(pb);
369 } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
370 mov_write_amr_tag(pb, track);
371 } else if (track->enc->codec_id == CODEC_ID_AC3) {
372 mov_write_ac3_tag(pb, track);
373 } else if (track->enc->codec_id == CODEC_ID_ALAC) {
374 mov_write_extradata_tag(pb, track);
375 } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
376 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
377 mov_write_ms_tag(pb, track);
380 avio_wb32(pb, 8); /* size */
381 avio_wb32(pb, 0); /* null tag */
383 return updateSize(pb, pos);
386 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
388 avio_wb32(pb, track->vosLen+8);
389 ffio_wfourcc(pb, "glbl");
390 avio_write(pb, track->vosData, track->vosLen);
391 return 8+track->vosLen;
395 * Compute flags for 'lpcm' tag.
396 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
398 static int mov_get_lpcm_flags(enum CodecID codec_id)
401 case CODEC_ID_PCM_F32BE:
402 case CODEC_ID_PCM_F64BE:
404 case CODEC_ID_PCM_F32LE:
405 case CODEC_ID_PCM_F64LE:
407 case CODEC_ID_PCM_U8:
409 case CODEC_ID_PCM_S16BE:
410 case CODEC_ID_PCM_S24BE:
411 case CODEC_ID_PCM_S32BE:
413 case CODEC_ID_PCM_S8:
414 case CODEC_ID_PCM_S16LE:
415 case CODEC_ID_PCM_S24LE:
416 case CODEC_ID_PCM_S32LE:
423 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
425 int64_t pos = avio_tell(pb);
427 uint32_t tag = track->tag;
429 if (track->mode == MODE_MOV) {
430 if (track->timescale > UINT16_MAX) {
431 if (mov_get_lpcm_flags(track->enc->codec_id))
432 tag = AV_RL32("lpcm");
434 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
435 track->enc->codec_id == CODEC_ID_ADPCM_MS ||
436 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
441 avio_wb32(pb, 0); /* size */
442 avio_wl32(pb, tag); // store it byteswapped
443 avio_wb32(pb, 0); /* Reserved */
444 avio_wb16(pb, 0); /* Reserved */
445 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
447 /* SoundDescription */
448 avio_wb16(pb, version); /* Version */
449 avio_wb16(pb, 0); /* Revision level */
450 avio_wb32(pb, 0); /* Reserved */
455 avio_wb16(pb, 0xfffe);
457 avio_wb32(pb, 0x00010000);
459 avio_wb64(pb, av_dbl2int(track->timescale));
460 avio_wb32(pb, track->enc->channels);
461 avio_wb32(pb, 0x7F000000);
462 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
463 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
464 avio_wb32(pb, track->sampleSize);
465 avio_wb32(pb, track->enc->frame_size);
467 if (track->mode == MODE_MOV) {
468 avio_wb16(pb, track->enc->channels);
469 if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
470 track->enc->codec_id == CODEC_ID_PCM_S8)
471 avio_wb16(pb, 8); /* bits per sample */
474 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
475 } else { /* reserved for mp4/3gp */
481 avio_wb16(pb, 0); /* packet size (= 0) */
482 avio_wb16(pb, track->timescale); /* Time scale */
483 avio_wb16(pb, 0); /* Reserved */
486 if(version == 1) { /* SoundDescription V1 extended info */
487 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
488 avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
489 avio_wb32(pb, track->sampleSize); /* Bytes per frame */
490 avio_wb32(pb, 2); /* Bytes per sample */
493 if(track->mode == MODE_MOV &&
494 (track->enc->codec_id == CODEC_ID_AAC ||
495 track->enc->codec_id == CODEC_ID_AC3 ||
496 track->enc->codec_id == CODEC_ID_AMR_NB ||
497 track->enc->codec_id == CODEC_ID_ALAC ||
498 track->enc->codec_id == CODEC_ID_ADPCM_MS ||
499 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV ||
500 mov_pcm_le_gt16(track->enc->codec_id)))
501 mov_write_wave_tag(pb, track);
502 else if(track->tag == MKTAG('m','p','4','a'))
503 mov_write_esds_tag(pb, track);
504 else if(track->enc->codec_id == CODEC_ID_AMR_NB)
505 mov_write_amr_tag(pb, track);
506 else if(track->enc->codec_id == CODEC_ID_AC3)
507 mov_write_ac3_tag(pb, track);
508 else if(track->enc->codec_id == CODEC_ID_ALAC)
509 mov_write_extradata_tag(pb, track);
510 else if(track->vosLen > 0)
511 mov_write_glbl_tag(pb, track);
513 return updateSize(pb, pos);
516 static int mov_write_d263_tag(AVIOContext *pb)
518 avio_wb32(pb, 0xf); /* size */
519 ffio_wfourcc(pb, "d263");
520 ffio_wfourcc(pb, "FFMP");
521 avio_w8(pb, 0); /* decoder version */
522 /* FIXME use AVCodecContext level/profile, when encoder will set values */
523 avio_w8(pb, 0xa); /* level */
524 avio_w8(pb, 0); /* profile */
528 /* TODO: No idea about these values */
529 static int mov_write_svq3_tag(AVIOContext *pb)
532 ffio_wfourcc(pb, "SMI ");
533 ffio_wfourcc(pb, "SEQH");
535 avio_wb32(pb, 0xe2c0211d);
536 avio_wb32(pb, 0xc0000000);
541 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
543 int64_t pos = avio_tell(pb);
546 ffio_wfourcc(pb, "avcC");
547 ff_isom_write_avcc(pb, track->vosData, track->vosLen);
548 return updateSize(pb, pos);
551 /* also used by all avid codecs (dv, imx, meridien) and their variants */
552 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
555 avio_wb32(pb, 24); /* size */
556 ffio_wfourcc(pb, "ACLR");
557 ffio_wfourcc(pb, "ACLR");
558 ffio_wfourcc(pb, "0001");
559 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
560 avio_wb32(pb, 0); /* unknown */
562 avio_wb32(pb, 24); /* size */
563 ffio_wfourcc(pb, "APRG");
564 ffio_wfourcc(pb, "APRG");
565 ffio_wfourcc(pb, "0001");
566 avio_wb32(pb, 1); /* unknown */
567 avio_wb32(pb, 0); /* unknown */
569 avio_wb32(pb, 120); /* size */
570 ffio_wfourcc(pb, "ARES");
571 ffio_wfourcc(pb, "ARES");
572 ffio_wfourcc(pb, "0001");
573 avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
574 avio_wb32(pb, track->enc->width);
575 /* values below are based on samples created with quicktime and avid codecs */
576 if (track->vosData[5] & 2) { // interlaced
577 avio_wb32(pb, track->enc->height/2);
578 avio_wb32(pb, 2); /* unknown */
579 avio_wb32(pb, 0); /* unknown */
580 avio_wb32(pb, 4); /* unknown */
582 avio_wb32(pb, track->enc->height);
583 avio_wb32(pb, 1); /* unknown */
584 avio_wb32(pb, 0); /* unknown */
585 if (track->enc->height == 1080)
586 avio_wb32(pb, 5); /* unknown */
588 avio_wb32(pb, 6); /* unknown */
591 for (i = 0; i < 10; i++)
594 /* extra padding for stsd needed */
599 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
601 int tag = track->enc->codec_tag;
603 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
606 if (track->enc->codec_id == CODEC_ID_H264) tag = MKTAG('a','v','c','1');
607 else if (track->enc->codec_id == CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
608 else if (track->enc->codec_id == CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
609 else if (track->enc->codec_id == CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
610 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
611 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
616 static const AVCodecTag codec_ipod_tags[] = {
617 { CODEC_ID_H264, MKTAG('a','v','c','1') },
618 { CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
619 { CODEC_ID_AAC, MKTAG('m','p','4','a') },
620 { CODEC_ID_ALAC, MKTAG('a','l','a','c') },
621 { CODEC_ID_AC3, MKTAG('a','c','-','3') },
622 { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
623 { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
624 { CODEC_ID_NONE, 0 },
627 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
629 int tag = track->enc->codec_tag;
631 // keep original tag for subs, ipod supports both formats
632 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
633 (tag == MKTAG('t','x','3','g') ||
634 tag == MKTAG('t','e','x','t'))))
635 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
637 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
638 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
639 "Quicktime/Ipod might not play the file\n");
644 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
648 if (track->enc->width == 720) /* SD */
649 if (track->enc->height == 480) /* NTSC */
650 if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
651 else tag = MKTAG('d','v','c',' ');
652 else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
653 else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
654 else tag = MKTAG('d','v','p','p');
655 else if (track->enc->height == 720) /* HD 720 line */
656 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
657 else tag = MKTAG('d','v','h','p');
658 else if (track->enc->height == 1080) /* HD 1080 line */
659 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
660 else tag = MKTAG('d','v','h','6');
662 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
669 static const struct {
670 enum PixelFormat pix_fmt;
673 } mov_pix_fmt_tags[] = {
674 { PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
675 { PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
676 { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
677 { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
678 { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
679 { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
680 { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
681 { PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
682 { PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
683 { PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
684 { PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
685 { PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
686 { PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
687 { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
690 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
692 int tag = track->enc->codec_tag;
695 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
696 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
697 tag = mov_pix_fmt_tags[i].tag;
698 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
706 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
708 int tag = track->enc->codec_tag;
710 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
711 (track->enc->codec_id == CODEC_ID_DVVIDEO ||
712 track->enc->codec_id == CODEC_ID_RAWVIDEO ||
713 track->enc->codec_id == CODEC_ID_H263 ||
714 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
715 if (track->enc->codec_id == CODEC_ID_DVVIDEO)
716 tag = mov_get_dv_codec_tag(s, track);
717 else if (track->enc->codec_id == CODEC_ID_RAWVIDEO)
718 tag = mov_get_rawvideo_codec_tag(s, track);
719 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
720 tag = ff_codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
721 if (!tag) { // if no mac fcc found, try with Microsoft tags
722 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
724 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
725 "the file may be unplayable!\n");
727 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
728 tag = ff_codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
729 if (!tag) { // if no mac fcc found, try with Microsoft tags
730 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
732 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
733 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
734 "the file may be unplayable!\n");
737 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
738 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
744 static const AVCodecTag codec_3gp_tags[] = {
745 { CODEC_ID_H263, MKTAG('s','2','6','3') },
746 { CODEC_ID_H264, MKTAG('a','v','c','1') },
747 { CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
748 { CODEC_ID_AAC, MKTAG('m','p','4','a') },
749 { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
750 { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
751 { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
752 { CODEC_ID_NONE, 0 },
755 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
757 int tag = track->enc->codec_tag;
759 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
760 tag = mp4_get_codec_tag(s, track);
761 else if (track->mode == MODE_IPOD)
762 tag = ipod_get_codec_tag(s, track);
763 else if (track->mode & MODE_3GP)
764 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
766 tag = mov_get_codec_tag(s, track);
772 * Needed to make file play in iPods running newest firmware
773 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
775 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
778 ffio_wfourcc(pb, "uuid");
779 avio_wb32(pb, 0x6b6840f2);
780 avio_wb32(pb, 0x5f244fc5);
781 avio_wb32(pb, 0xba39a51b);
782 avio_wb32(pb, 0xcf0323f3);
787 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
789 int64_t pos = avio_tell(pb);
790 avio_wb32(pb, 0); /* size */
791 avio_wl32(pb, track->tag); // store it byteswapped
792 avio_wb32(pb, 0); /* Reserved */
793 avio_wb16(pb, 0); /* Reserved */
794 avio_wb16(pb, 1); /* Data-reference index */
796 if (track->enc->extradata_size)
797 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
799 return updateSize(pb, pos);
802 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
805 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
806 track->enc->sample_aspect_ratio.den, INT_MAX);
809 ffio_wfourcc(pb, "pasp");
810 avio_wb32(pb, sar.num);
811 avio_wb32(pb, sar.den);
815 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
817 int64_t pos = avio_tell(pb);
818 char compressor_name[32];
820 avio_wb32(pb, 0); /* size */
821 avio_wl32(pb, track->tag); // store it byteswapped
822 avio_wb32(pb, 0); /* Reserved */
823 avio_wb16(pb, 0); /* Reserved */
824 avio_wb16(pb, 1); /* Data-reference index */
826 avio_wb16(pb, 0); /* Codec stream version */
827 avio_wb16(pb, 0); /* Codec stream revision (=0) */
828 if (track->mode == MODE_MOV) {
829 ffio_wfourcc(pb, "FFMP"); /* Vendor */
830 if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
831 avio_wb32(pb, 0); /* Temporal Quality */
832 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
834 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
835 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
838 avio_wb32(pb, 0); /* Reserved */
839 avio_wb32(pb, 0); /* Reserved */
840 avio_wb32(pb, 0); /* Reserved */
842 avio_wb16(pb, track->enc->width); /* Video width */
843 avio_wb16(pb, track->height); /* Video height */
844 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
845 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
846 avio_wb32(pb, 0); /* Data size (= 0) */
847 avio_wb16(pb, 1); /* Frame count (= 1) */
849 memset(compressor_name,0,32);
850 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
851 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
852 av_strlcpy(compressor_name,track->enc->codec->name,32);
853 avio_w8(pb, strlen(compressor_name));
854 avio_write(pb, compressor_name, 31);
856 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
857 avio_wb16(pb, track->enc->bits_per_coded_sample);
859 avio_wb16(pb, 0x18); /* Reserved */
860 avio_wb16(pb, 0xffff); /* Reserved */
861 if(track->tag == MKTAG('m','p','4','v'))
862 mov_write_esds_tag(pb, track);
863 else if(track->enc->codec_id == CODEC_ID_H263)
864 mov_write_d263_tag(pb);
865 else if(track->enc->codec_id == CODEC_ID_SVQ3)
866 mov_write_svq3_tag(pb);
867 else if(track->enc->codec_id == CODEC_ID_DNXHD)
868 mov_write_avid_tag(pb, track);
869 else if(track->enc->codec_id == CODEC_ID_H264) {
870 mov_write_avcc_tag(pb, track);
871 if(track->mode == MODE_IPOD)
872 mov_write_uuid_tag_ipod(pb);
873 } else if(track->vosLen > 0)
874 mov_write_glbl_tag(pb, track);
876 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
877 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
878 mov_write_pasp_tag(pb, track);
881 return updateSize(pb, pos);
884 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
886 int64_t pos = avio_tell(pb);
887 avio_wb32(pb, 0); /* size */
888 ffio_wfourcc(pb, "rtp ");
889 avio_wb32(pb, 0); /* Reserved */
890 avio_wb16(pb, 0); /* Reserved */
891 avio_wb16(pb, 1); /* Data-reference index */
893 avio_wb16(pb, 1); /* Hint track version */
894 avio_wb16(pb, 1); /* Highest compatible version */
895 avio_wb32(pb, track->max_packet_size); /* Max packet size */
897 avio_wb32(pb, 12); /* size */
898 ffio_wfourcc(pb, "tims");
899 avio_wb32(pb, track->timescale);
901 return updateSize(pb, pos);
904 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
906 int64_t pos = avio_tell(pb);
907 avio_wb32(pb, 0); /* size */
908 ffio_wfourcc(pb, "stsd");
909 avio_wb32(pb, 0); /* version & flags */
910 avio_wb32(pb, 1); /* entry count */
911 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
912 mov_write_video_tag(pb, track);
913 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
914 mov_write_audio_tag(pb, track);
915 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
916 mov_write_subtitle_tag(pb, track);
917 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
918 mov_write_rtp_tag(pb, track);
919 return updateSize(pb, pos);
922 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
924 MOVStts *ctts_entries;
925 uint32_t entries = 0;
929 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
930 ctts_entries[0].count = 1;
931 ctts_entries[0].duration = track->cluster[0].cts;
932 for (i=1; i<track->entry; i++) {
933 if (track->cluster[i].cts == ctts_entries[entries].duration) {
934 ctts_entries[entries].count++; /* compress */
937 ctts_entries[entries].duration = track->cluster[i].cts;
938 ctts_entries[entries].count = 1;
941 entries++; /* last one */
942 atom_size = 16 + (entries * 8);
943 avio_wb32(pb, atom_size); /* size */
944 ffio_wfourcc(pb, "ctts");
945 avio_wb32(pb, 0); /* version & flags */
946 avio_wb32(pb, entries); /* entry count */
947 for (i=0; i<entries; i++) {
948 avio_wb32(pb, ctts_entries[i].count);
949 avio_wb32(pb, ctts_entries[i].duration);
951 av_free(ctts_entries);
955 /* Time to sample atom */
956 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
958 MOVStts *stts_entries;
959 uint32_t entries = -1;
963 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
964 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
965 stts_entries[0].count = track->sampleCount;
966 stts_entries[0].duration = 1;
969 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
970 for (i=0; i<track->entry; i++) {
971 int64_t duration = i + 1 == track->entry ?
972 track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
973 track->cluster[i+1].dts - track->cluster[i].dts;
974 if (i && duration == stts_entries[entries].duration) {
975 stts_entries[entries].count++; /* compress */
978 stts_entries[entries].duration = duration;
979 stts_entries[entries].count = 1;
982 entries++; /* last one */
984 atom_size = 16 + (entries * 8);
985 avio_wb32(pb, atom_size); /* size */
986 ffio_wfourcc(pb, "stts");
987 avio_wb32(pb, 0); /* version & flags */
988 avio_wb32(pb, entries); /* entry count */
989 for (i=0; i<entries; i++) {
990 avio_wb32(pb, stts_entries[i].count);
991 avio_wb32(pb, stts_entries[i].duration);
993 av_free(stts_entries);
997 static int mov_write_dref_tag(AVIOContext *pb)
999 avio_wb32(pb, 28); /* size */
1000 ffio_wfourcc(pb, "dref");
1001 avio_wb32(pb, 0); /* version & flags */
1002 avio_wb32(pb, 1); /* entry count */
1004 avio_wb32(pb, 0xc); /* size */
1005 ffio_wfourcc(pb, "url ");
1006 avio_wb32(pb, 1); /* version & flags */
1011 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1013 int64_t pos = avio_tell(pb);
1014 avio_wb32(pb, 0); /* size */
1015 ffio_wfourcc(pb, "stbl");
1016 mov_write_stsd_tag(pb, track);
1017 mov_write_stts_tag(pb, track);
1018 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1019 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1020 track->hasKeyframes && track->hasKeyframes < track->entry)
1021 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1022 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1023 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1024 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1025 track->flags & MOV_TRACK_CTTS)
1026 mov_write_ctts_tag(pb, track);
1027 mov_write_stsc_tag(pb, track);
1028 mov_write_stsz_tag(pb, track);
1029 mov_write_stco_tag(pb, track);
1030 return updateSize(pb, pos);
1033 static int mov_write_dinf_tag(AVIOContext *pb)
1035 int64_t pos = avio_tell(pb);
1036 avio_wb32(pb, 0); /* size */
1037 ffio_wfourcc(pb, "dinf");
1038 mov_write_dref_tag(pb);
1039 return updateSize(pb, pos);
1042 static int mov_write_nmhd_tag(AVIOContext *pb)
1045 ffio_wfourcc(pb, "nmhd");
1050 static int mov_write_gmhd_tag(AVIOContext *pb)
1052 avio_wb32(pb, 0x20); /* size */
1053 ffio_wfourcc(pb, "gmhd");
1054 avio_wb32(pb, 0x18); /* gmin size */
1055 ffio_wfourcc(pb, "gmin");/* generic media info */
1056 avio_wb32(pb, 0); /* version & flags */
1057 avio_wb16(pb, 0x40); /* graphics mode = */
1058 avio_wb16(pb, 0x8000); /* opColor (r?) */
1059 avio_wb16(pb, 0x8000); /* opColor (g?) */
1060 avio_wb16(pb, 0x8000); /* opColor (b?) */
1061 avio_wb16(pb, 0); /* balance */
1062 avio_wb16(pb, 0); /* reserved */
1066 static int mov_write_smhd_tag(AVIOContext *pb)
1068 avio_wb32(pb, 16); /* size */
1069 ffio_wfourcc(pb, "smhd");
1070 avio_wb32(pb, 0); /* version & flags */
1071 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1072 avio_wb16(pb, 0); /* reserved */
1076 static int mov_write_vmhd_tag(AVIOContext *pb)
1078 avio_wb32(pb, 0x14); /* size (always 0x14) */
1079 ffio_wfourcc(pb, "vmhd");
1080 avio_wb32(pb, 0x01); /* version & flags */
1081 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1085 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1087 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1088 int64_t pos = avio_tell(pb);
1090 if (!track) { /* no media --> data handler */
1093 descr = "DataHandler";
1095 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1096 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1098 descr = "VideoHandler";
1099 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1101 descr = "SoundHandler";
1102 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1103 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1104 else hdlr_type = "text";
1105 descr = "SubtitleHandler";
1106 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1108 descr = "HintHandler";
1112 avio_wb32(pb, 0); /* size */
1113 ffio_wfourcc(pb, "hdlr");
1114 avio_wb32(pb, 0); /* Version & flags */
1115 avio_write(pb, hdlr, 4); /* handler */
1116 ffio_wfourcc(pb, hdlr_type); /* handler type */
1117 avio_wb32(pb ,0); /* reserved */
1118 avio_wb32(pb ,0); /* reserved */
1119 avio_wb32(pb ,0); /* reserved */
1120 if (!track || track->mode == MODE_MOV)
1121 avio_w8(pb, strlen(descr)); /* pascal string */
1122 avio_write(pb, descr, strlen(descr)); /* handler description */
1123 if (track && track->mode != MODE_MOV)
1124 avio_w8(pb, 0); /* c string */
1125 return updateSize(pb, pos);
1128 static int mov_write_hmhd_tag(AVIOContext *pb)
1130 /* This atom must be present, but leaving the values at zero
1131 * seems harmless. */
1132 avio_wb32(pb, 28); /* size */
1133 ffio_wfourcc(pb, "hmhd");
1134 avio_wb32(pb, 0); /* version, flags */
1135 avio_wb16(pb, 0); /* maxPDUsize */
1136 avio_wb16(pb, 0); /* avgPDUsize */
1137 avio_wb32(pb, 0); /* maxbitrate */
1138 avio_wb32(pb, 0); /* avgbitrate */
1139 avio_wb32(pb, 0); /* reserved */
1143 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1145 int64_t pos = avio_tell(pb);
1146 avio_wb32(pb, 0); /* size */
1147 ffio_wfourcc(pb, "minf");
1148 if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1149 mov_write_vmhd_tag(pb);
1150 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1151 mov_write_smhd_tag(pb);
1152 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1153 if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1154 else mov_write_nmhd_tag(pb);
1155 } else if (track->tag == MKTAG('r','t','p',' ')) {
1156 mov_write_hmhd_tag(pb);
1158 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1159 mov_write_hdlr_tag(pb, NULL);
1160 mov_write_dinf_tag(pb);
1161 mov_write_stbl_tag(pb, track);
1162 return updateSize(pb, pos);
1165 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1167 int version = track->trackDuration < INT32_MAX ? 0 : 1;
1169 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1170 ffio_wfourcc(pb, "mdhd");
1171 avio_w8(pb, version);
1172 avio_wb24(pb, 0); /* flags */
1174 avio_wb64(pb, track->time);
1175 avio_wb64(pb, track->time);
1177 avio_wb32(pb, track->time); /* creation time */
1178 avio_wb32(pb, track->time); /* modification time */
1180 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1181 (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */
1182 avio_wb16(pb, track->language); /* language */
1183 avio_wb16(pb, 0); /* reserved (quality) */
1185 if(version!=0 && track->mode == MODE_MOV){
1186 av_log(NULL, AV_LOG_ERROR,
1187 "FATAL error, file duration too long for timebase, this file will not be\n"
1188 "playable with quicktime. Choose a different timebase or a different\n"
1189 "container format\n");
1195 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1197 int64_t pos = avio_tell(pb);
1198 avio_wb32(pb, 0); /* size */
1199 ffio_wfourcc(pb, "mdia");
1200 mov_write_mdhd_tag(pb, track);
1201 mov_write_hdlr_tag(pb, track);
1202 mov_write_minf_tag(pb, track);
1203 return updateSize(pb, pos);
1206 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1208 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1209 track->timescale, AV_ROUND_UP);
1210 int version = duration < INT32_MAX ? 0 : 1;
1212 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1213 ffio_wfourcc(pb, "tkhd");
1214 avio_w8(pb, version);
1215 avio_wb24(pb, 0xf); /* flags (track enabled) */
1217 avio_wb64(pb, track->time);
1218 avio_wb64(pb, track->time);
1220 avio_wb32(pb, track->time); /* creation time */
1221 avio_wb32(pb, track->time); /* modification time */
1223 avio_wb32(pb, track->trackID); /* track-id */
1224 avio_wb32(pb, 0); /* reserved */
1225 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1227 avio_wb32(pb, 0); /* reserved */
1228 avio_wb32(pb, 0); /* reserved */
1229 avio_wb16(pb, 0); /* layer */
1230 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1231 /* Volume, only for audio */
1232 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1233 avio_wb16(pb, 0x0100);
1236 avio_wb16(pb, 0); /* reserved */
1238 /* Matrix structure */
1239 avio_wb32(pb, 0x00010000); /* reserved */
1240 avio_wb32(pb, 0x0); /* reserved */
1241 avio_wb32(pb, 0x0); /* reserved */
1242 avio_wb32(pb, 0x0); /* reserved */
1243 avio_wb32(pb, 0x00010000); /* reserved */
1244 avio_wb32(pb, 0x0); /* reserved */
1245 avio_wb32(pb, 0x0); /* reserved */
1246 avio_wb32(pb, 0x0); /* reserved */
1247 avio_wb32(pb, 0x40000000); /* reserved */
1249 /* Track width and height, for visual only */
1250 if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1251 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1252 if(track->mode == MODE_MOV) {
1253 avio_wb32(pb, track->enc->width << 16);
1254 avio_wb32(pb, track->height << 16);
1256 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1257 if(!sample_aspect_ratio || track->height != track->enc->height)
1258 sample_aspect_ratio = 1;
1259 avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1260 avio_wb32(pb, track->height*0x10000);
1270 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1272 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1273 track->enc->sample_aspect_ratio.den);
1275 int64_t pos = avio_tell(pb);
1277 avio_wb32(pb, 0); /* size */
1278 ffio_wfourcc(pb, "tapt");
1281 ffio_wfourcc(pb, "clef");
1283 avio_wb32(pb, width << 16);
1284 avio_wb32(pb, track->enc->height << 16);
1287 ffio_wfourcc(pb, "enof");
1289 avio_wb32(pb, track->enc->width << 16);
1290 avio_wb32(pb, track->enc->height << 16);
1292 return updateSize(pb, pos);
1295 // This box seems important for the psp playback ... without it the movie seems to hang
1296 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1298 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1299 track->timescale, AV_ROUND_UP);
1300 int version = duration < INT32_MAX ? 0 : 1;
1301 int entry_size, entry_count, size;
1302 int64_t delay, start_ct = track->cluster[0].cts;
1303 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1304 track->timescale, AV_ROUND_DOWN);
1305 version |= delay < INT32_MAX ? 0 : 1;
1307 entry_size = (version == 1) ? 20 : 12;
1308 entry_count = 1 + (delay > 0);
1309 size = 24 + entry_count * entry_size;
1311 /* write the atom data */
1312 avio_wb32(pb, size);
1313 ffio_wfourcc(pb, "edts");
1314 avio_wb32(pb, size - 8);
1315 ffio_wfourcc(pb, "elst");
1316 avio_w8(pb, version);
1317 avio_wb24(pb, 0); /* flags */
1319 avio_wb32(pb, entry_count);
1320 if (delay > 0) { /* add an empty edit to delay presentation */
1322 avio_wb64(pb, delay);
1325 avio_wb32(pb, delay);
1328 avio_wb32(pb, 0x00010000);
1333 avio_wb64(pb, duration);
1334 avio_wb64(pb, start_ct);
1336 avio_wb32(pb, duration);
1337 avio_wb32(pb, start_ct);
1339 avio_wb32(pb, 0x00010000);
1343 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1345 avio_wb32(pb, 20); // size
1346 ffio_wfourcc(pb, "tref");
1347 avio_wb32(pb, 12); // size (subatom)
1348 avio_wl32(pb, track->tref_tag);
1349 avio_wb32(pb, track->tref_id);
1353 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1354 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1356 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1357 ffio_wfourcc(pb, "uuid");
1358 ffio_wfourcc(pb, "USMT");
1359 avio_wb32(pb, 0x21d24fce);
1360 avio_wb32(pb, 0xbb88695c);
1361 avio_wb32(pb, 0xfac9c740);
1362 avio_wb32(pb, 0x1c); // another size here!
1363 ffio_wfourcc(pb, "MTDT");
1364 avio_wb32(pb, 0x00010012);
1365 avio_wb32(pb, 0x0a);
1366 avio_wb32(pb, 0x55c40000);
1372 static int mov_write_udta_sdp(AVIOContext *pb, AVFormatContext *ctx, int index)
1374 char buf[1000] = "";
1377 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0]->codec, NULL, NULL, 0, 0, ctx);
1378 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
1381 avio_wb32(pb, len + 24);
1382 ffio_wfourcc(pb, "udta");
1383 avio_wb32(pb, len + 16);
1384 ffio_wfourcc(pb, "hnti");
1385 avio_wb32(pb, len + 8);
1386 ffio_wfourcc(pb, "sdp ");
1387 avio_write(pb, buf, len);
1391 static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1393 int64_t pos = avio_tell(pb);
1394 avio_wb32(pb, 0); /* size */
1395 ffio_wfourcc(pb, "trak");
1396 mov_write_tkhd_tag(pb, track, st);
1397 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS || track->cluster[0].dts)
1398 mov_write_edts_tag(pb, track); // PSP Movies require edts box
1399 if (track->tref_tag)
1400 mov_write_tref_tag(pb, track);
1401 mov_write_mdia_tag(pb, track);
1402 if (track->mode == MODE_PSP)
1403 mov_write_uuid_tag_psp(pb,track); // PSP Movies require this uuid box
1404 if (track->tag == MKTAG('r','t','p',' '))
1405 mov_write_udta_sdp(pb, track->rtp_ctx, track->trackID);
1406 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1407 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1408 if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1409 mov_write_tapt_tag(pb, track);
1411 return updateSize(pb, pos);
1415 /* TODO: Not sorted out, but not necessary either */
1416 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1418 avio_wb32(pb, 0x15); /* size */
1419 ffio_wfourcc(pb, "iods");
1420 avio_wb32(pb, 0); /* version & flags */
1421 avio_wb16(pb, 0x1007);
1423 avio_wb16(pb, 0x4fff);
1424 avio_wb16(pb, 0xfffe);
1425 avio_wb16(pb, 0x01ff);
1430 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1432 int maxTrackID = 1, i;
1433 int64_t maxTrackLenTemp, maxTrackLen = 0;
1436 for (i=0; i<mov->nb_streams; i++) {
1437 if(mov->tracks[i].entry > 0) {
1438 maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration,
1440 mov->tracks[i].timescale,
1442 if(maxTrackLen < maxTrackLenTemp)
1443 maxTrackLen = maxTrackLenTemp;
1444 if(maxTrackID < mov->tracks[i].trackID)
1445 maxTrackID = mov->tracks[i].trackID;
1449 version = maxTrackLen < UINT32_MAX ? 0 : 1;
1450 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1451 ffio_wfourcc(pb, "mvhd");
1452 avio_w8(pb, version);
1453 avio_wb24(pb, 0); /* flags */
1455 avio_wb64(pb, mov->time);
1456 avio_wb64(pb, mov->time);
1458 avio_wb32(pb, mov->time); /* creation time */
1459 avio_wb32(pb, mov->time); /* modification time */
1461 avio_wb32(pb, MOV_TIMESCALE);
1462 (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */
1464 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1465 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1466 avio_wb16(pb, 0); /* reserved */
1467 avio_wb32(pb, 0); /* reserved */
1468 avio_wb32(pb, 0); /* reserved */
1470 /* Matrix structure */
1471 avio_wb32(pb, 0x00010000); /* reserved */
1472 avio_wb32(pb, 0x0); /* reserved */
1473 avio_wb32(pb, 0x0); /* reserved */
1474 avio_wb32(pb, 0x0); /* reserved */
1475 avio_wb32(pb, 0x00010000); /* reserved */
1476 avio_wb32(pb, 0x0); /* reserved */
1477 avio_wb32(pb, 0x0); /* reserved */
1478 avio_wb32(pb, 0x0); /* reserved */
1479 avio_wb32(pb, 0x40000000); /* reserved */
1481 avio_wb32(pb, 0); /* reserved (preview time) */
1482 avio_wb32(pb, 0); /* reserved (preview duration) */
1483 avio_wb32(pb, 0); /* reserved (poster time) */
1484 avio_wb32(pb, 0); /* reserved (selection time) */
1485 avio_wb32(pb, 0); /* reserved (selection duration) */
1486 avio_wb32(pb, 0); /* reserved (current time) */
1487 avio_wb32(pb, maxTrackID+1); /* Next track id */
1491 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1494 avio_wb32(pb, 33); /* size */
1495 ffio_wfourcc(pb, "hdlr");
1498 ffio_wfourcc(pb, "mdir");
1499 ffio_wfourcc(pb, "appl");
1506 /* helper function to write a data tag with the specified string as data */
1507 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1510 int size = 16 + strlen(data);
1511 avio_wb32(pb, size); /* size */
1512 ffio_wfourcc(pb, "data");
1515 avio_write(pb, data, strlen(data));
1519 lang = ff_mov_iso639_to_lang("und", 1);
1520 avio_wb16(pb, strlen(data)); /* string length */
1521 avio_wb16(pb, lang);
1522 avio_write(pb, data, strlen(data));
1523 return strlen(data) + 4;
1527 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1529 if (value && value[0]) {
1530 int64_t pos = avio_tell(pb);
1531 avio_wb32(pb, 0); /* size */
1532 ffio_wfourcc(pb, name);
1533 mov_write_string_data_tag(pb, value, lang, long_style);
1534 size= updateSize(pb, pos);
1539 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1540 const char *name, const char *tag,
1543 int l, lang = 0, len, len2;
1544 AVDictionaryEntry *t, *t2 = NULL;
1547 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1550 len = strlen(t->key);
1551 snprintf(tag2, sizeof(tag2), "%s-", tag);
1552 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1553 len2 = strlen(t2->key);
1554 if (len2 == len+4 && !strcmp(t->value, t2->value)
1555 && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1560 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1563 /* iTunes track number */
1564 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1567 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1568 int size = 0, track = t ? atoi(t->value) : 0;
1570 avio_wb32(pb, 32); /* size */
1571 ffio_wfourcc(pb, "trkn");
1572 avio_wb32(pb, 24); /* size */
1573 ffio_wfourcc(pb, "data");
1574 avio_wb32(pb, 0); // 8 bytes empty
1576 avio_wb16(pb, 0); // empty
1577 avio_wb16(pb, track); // track number
1578 avio_wb16(pb, 0); // total track number
1579 avio_wb16(pb, 0); // empty
1585 /* iTunes meta data list */
1586 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1589 int64_t pos = avio_tell(pb);
1590 avio_wb32(pb, 0); /* size */
1591 ffio_wfourcc(pb, "ilst");
1592 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
1593 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
1594 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1595 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1596 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
1597 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
1598 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1599 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
1600 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
1601 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1602 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1603 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
1604 mov_write_string_metadata(s, pb, "desc", "description",1);
1605 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
1606 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
1607 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
1608 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
1609 mov_write_trkn_tag(pb, mov, s);
1610 return updateSize(pb, pos);
1613 /* iTunes meta data tag */
1614 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1618 int64_t pos = avio_tell(pb);
1619 avio_wb32(pb, 0); /* size */
1620 ffio_wfourcc(pb, "meta");
1622 mov_write_itunes_hdlr_tag(pb, mov, s);
1623 mov_write_ilst_tag(pb, mov, s);
1624 size = updateSize(pb, pos);
1628 static int utf8len(const uint8_t *b)
1633 GET_UTF8(val, *b++, return -1;)
1639 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1643 GET_UTF8(val, *b++, return -1;)
1646 avio_wb16(pb, 0x00);
1650 static uint16_t language_code(const char *str)
1652 return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
1655 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1656 const char *tag, const char *str)
1658 int64_t pos = avio_tell(pb);
1659 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
1660 if (!t || !utf8len(t->value))
1662 avio_wb32(pb, 0); /* size */
1663 ffio_wfourcc(pb, tag); /* type */
1664 avio_wb32(pb, 0); /* version + flags */
1665 if (!strcmp(tag, "yrrc"))
1666 avio_wb16(pb, atoi(t->value));
1668 avio_wb16(pb, language_code("eng")); /* language */
1669 avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
1670 if (!strcmp(tag, "albm") &&
1671 (t = av_dict_get(s->metadata, "track", NULL, 0)))
1672 avio_w8(pb, atoi(t->value));
1674 return updateSize(pb, pos);
1677 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1679 int64_t pos = avio_tell(pb);
1680 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1682 avio_wb32(pb, 0); // size
1683 ffio_wfourcc(pb, "chpl");
1684 avio_wb32(pb, 0x01000000); // version + flags
1685 avio_wb32(pb, 0); // unknown
1686 avio_w8(pb, nb_chapters);
1688 for (i = 0; i < nb_chapters; i++) {
1689 AVChapter *c = s->chapters[i];
1690 AVDictionaryEntry *t;
1691 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1693 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1694 int len = FFMIN(strlen(t->value), 255);
1696 avio_write(pb, t->value, len);
1700 return updateSize(pb, pos);
1703 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1706 AVIOContext *pb_buf;
1710 for (i = 0; i < s->nb_streams; i++)
1711 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1715 ret = avio_open_dyn_buf(&pb_buf);
1719 if (mov->mode & MODE_3GP) {
1720 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1721 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1722 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1723 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1724 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1725 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1726 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1727 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1728 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1729 mov_write_string_metadata(s, pb_buf, "\251ART", "artist" , 0);
1730 mov_write_string_metadata(s, pb_buf, "\251nam", "title" , 0);
1731 mov_write_string_metadata(s, pb_buf, "\251aut", "author" , 0);
1732 mov_write_string_metadata(s, pb_buf, "\251alb", "album" , 0);
1733 mov_write_string_metadata(s, pb_buf, "\251day", "date" , 0);
1734 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder" , 0);
1735 mov_write_string_metadata(s, pb_buf, "\251des", "comment" , 0);
1736 mov_write_string_metadata(s, pb_buf, "\251gen", "genre" , 0);
1737 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright" , 0);
1739 /* iTunes meta data */
1740 mov_write_meta_tag(pb_buf, mov, s);
1744 mov_write_chpl_tag(pb_buf, s);
1746 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1747 avio_wb32(pb, size+8);
1748 ffio_wfourcc(pb, "udta");
1749 avio_write(pb, buf, size);
1756 static void mov_write_psp_udta_tag(AVIOContext *pb,
1757 const char *str, const char *lang, int type)
1759 int len = utf8len(str)+1;
1762 avio_wb16(pb, len*2+10); /* size */
1763 avio_wb32(pb, type); /* type */
1764 avio_wb16(pb, language_code(lang)); /* language */
1765 avio_wb16(pb, 0x01); /* ? */
1766 ascii_to_wc(pb, str);
1769 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
1771 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
1775 pos = avio_tell(pb);
1776 avio_wb32(pb, 0); /* size placeholder*/
1777 ffio_wfourcc(pb, "uuid");
1778 ffio_wfourcc(pb, "USMT");
1779 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1780 avio_wb32(pb, 0xbb88695c);
1781 avio_wb32(pb, 0xfac9c740);
1783 pos2 = avio_tell(pb);
1784 avio_wb32(pb, 0); /* size placeholder*/
1785 ffio_wfourcc(pb, "MTDT");
1789 avio_wb16(pb, 0x0C); /* size */
1790 avio_wb32(pb, 0x0B); /* type */
1791 avio_wb16(pb, language_code("und")); /* language */
1792 avio_wb16(pb, 0x0); /* ? */
1793 avio_wb16(pb, 0x021C); /* data */
1795 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
1796 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
1797 // 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);
1798 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
1800 updateSize(pb, pos2);
1801 return updateSize(pb, pos);
1807 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
1811 int64_t pos = avio_tell(pb);
1812 avio_wb32(pb, 0); /* size placeholder*/
1813 ffio_wfourcc(pb, "moov");
1815 for (i=0; i<mov->nb_streams; i++) {
1816 if(mov->tracks[i].entry <= 0) continue;
1818 mov->tracks[i].time = mov->time;
1819 mov->tracks[i].trackID = i+1;
1822 if (mov->chapter_track)
1823 for (i=0; i<s->nb_streams; i++) {
1824 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
1825 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID;
1827 for (i = 0; i < mov->nb_streams; i++) {
1828 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
1829 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
1830 mov->tracks[i].tref_id =
1831 mov->tracks[mov->tracks[i].src_track].trackID;
1835 mov_write_mvhd_tag(pb, mov);
1836 //mov_write_iods_tag(pb, mov);
1837 for (i=0; i<mov->nb_streams; i++) {
1838 if(mov->tracks[i].entry > 0) {
1839 mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
1843 if (mov->mode == MODE_PSP)
1844 mov_write_uuidusmt_tag(pb, s);
1846 mov_write_udta_tag(pb, mov, s);
1848 return updateSize(pb, pos);
1851 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
1853 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
1854 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
1856 mov->mdat_pos = avio_tell(pb);
1857 avio_wb32(pb, 0); /* size placeholder*/
1858 ffio_wfourcc(pb, "mdat");
1862 /* TODO: This needs to be more general */
1863 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
1865 MOVMuxContext *mov = s->priv_data;
1866 int64_t pos = avio_tell(pb);
1867 int has_h264 = 0, has_video = 0;
1871 for (i = 0; i < s->nb_streams; i++) {
1872 AVStream *st = s->streams[i];
1873 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1875 if (st->codec->codec_id == CODEC_ID_H264)
1879 avio_wb32(pb, 0); /* size */
1880 ffio_wfourcc(pb, "ftyp");
1882 if (mov->mode == MODE_3GP) {
1883 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
1884 minor = has_h264 ? 0x100 : 0x200;
1885 } else if (mov->mode & MODE_3G2) {
1886 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
1887 minor = has_h264 ? 0x20000 : 0x10000;
1888 }else if (mov->mode == MODE_PSP)
1889 ffio_wfourcc(pb, "MSNV");
1890 else if (mov->mode == MODE_MP4)
1891 ffio_wfourcc(pb, "isom");
1892 else if (mov->mode == MODE_IPOD)
1893 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
1895 ffio_wfourcc(pb, "qt ");
1897 avio_wb32(pb, minor);
1899 if(mov->mode == MODE_MOV)
1900 ffio_wfourcc(pb, "qt ");
1902 ffio_wfourcc(pb, "isom");
1903 ffio_wfourcc(pb, "iso2");
1905 ffio_wfourcc(pb, "avc1");
1908 if (mov->mode == MODE_3GP)
1909 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
1910 else if (mov->mode & MODE_3G2)
1911 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
1912 else if (mov->mode == MODE_PSP)
1913 ffio_wfourcc(pb, "MSNV");
1914 else if (mov->mode == MODE_MP4)
1915 ffio_wfourcc(pb, "mp41");
1916 return updateSize(pb, pos);
1919 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
1921 AVCodecContext *VideoCodec = s->streams[0]->codec;
1922 AVCodecContext *AudioCodec = s->streams[1]->codec;
1923 int AudioRate = AudioCodec->sample_rate;
1924 int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);
1925 int audio_kbitrate= AudioCodec->bit_rate / 1000;
1926 int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate);
1928 avio_wb32(pb, 0x94); /* size */
1929 ffio_wfourcc(pb, "uuid");
1930 ffio_wfourcc(pb, "PROF");
1932 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1933 avio_wb32(pb, 0xbb88695c);
1934 avio_wb32(pb, 0xfac9c740);
1936 avio_wb32(pb, 0x0); /* ? */
1937 avio_wb32(pb, 0x3); /* 3 sections ? */
1939 avio_wb32(pb, 0x14); /* size */
1940 ffio_wfourcc(pb, "FPRF");
1941 avio_wb32(pb, 0x0); /* ? */
1942 avio_wb32(pb, 0x0); /* ? */
1943 avio_wb32(pb, 0x0); /* ? */
1945 avio_wb32(pb, 0x2c); /* size */
1946 ffio_wfourcc(pb, "APRF");/* audio */
1948 avio_wb32(pb, 0x2); /* TrackID */
1949 ffio_wfourcc(pb, "mp4a");
1950 avio_wb32(pb, 0x20f);
1952 avio_wb32(pb, audio_kbitrate);
1953 avio_wb32(pb, audio_kbitrate);
1954 avio_wb32(pb, AudioRate);
1955 avio_wb32(pb, AudioCodec->channels);
1957 avio_wb32(pb, 0x34); /* size */
1958 ffio_wfourcc(pb, "VPRF"); /* video */
1960 avio_wb32(pb, 0x1); /* TrackID */
1961 if (VideoCodec->codec_id == CODEC_ID_H264) {
1962 ffio_wfourcc(pb, "avc1");
1963 avio_wb16(pb, 0x014D);
1964 avio_wb16(pb, 0x0015);
1966 ffio_wfourcc(pb, "mp4v");
1967 avio_wb16(pb, 0x0000);
1968 avio_wb16(pb, 0x0103);
1971 avio_wb32(pb, video_kbitrate);
1972 avio_wb32(pb, video_kbitrate);
1973 avio_wb32(pb, FrameRate);
1974 avio_wb32(pb, FrameRate);
1975 avio_wb16(pb, VideoCodec->width);
1976 avio_wb16(pb, VideoCodec->height);
1977 avio_wb32(pb, 0x010001); /* ? */
1980 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
1983 int i, closed_gop = 0;
1985 for (i = 0; i < pkt->size - 4; i++) {
1986 c = (c<<8) + pkt->data[i];
1987 if (c == 0x1b8) { // gop
1988 closed_gop = pkt->data[i+4]>>6 & 0x01;
1989 } else if (c == 0x100) { // pic
1990 int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1991 if (!temp_ref || closed_gop) // I picture is not reordered
1992 *flags = MOV_SYNC_SAMPLE;
1994 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2001 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
2003 MOVMuxContext *mov = s->priv_data;
2004 AVIOContext *pb = s->pb;
2005 MOVTrack *trk = &mov->tracks[pkt->stream_index];
2006 AVCodecContext *enc = trk->enc;
2007 unsigned int samplesInChunk = 0;
2008 int size= pkt->size;
2010 if (!s->pb->seekable) return 0; /* Can't handle that */
2011 if (!size) return 0; /* Discard 0 sized packets */
2013 if (enc->codec_id == CODEC_ID_AMR_NB) {
2014 /* We must find out how many AMR blocks there are in one packet */
2015 static uint16_t packed_size[16] =
2016 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
2019 while (len < size && samplesInChunk < 100) {
2020 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
2023 if(samplesInChunk > 1){
2024 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
2027 } else if (enc->codec_id == CODEC_ID_ADPCM_MS ||
2028 enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
2029 samplesInChunk = enc->frame_size;
2030 } else if (trk->sampleSize)
2031 samplesInChunk = size/trk->sampleSize;
2035 /* copy extradata if it exists */
2036 if (trk->vosLen == 0 && enc->extradata_size > 0) {
2037 trk->vosLen = enc->extradata_size;
2038 trk->vosData = av_malloc(trk->vosLen);
2039 memcpy(trk->vosData, enc->extradata, trk->vosLen);
2042 if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
2043 /* from x264 or from bytestream h264 */
2044 /* nal reformating needed */
2045 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
2046 } else if (enc->codec_id == CODEC_ID_AAC && pkt->size > 2 &&
2047 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
2048 av_log(s, AV_LOG_ERROR, "malformated aac bitstream, use -absf aac_adtstoasc\n");
2051 avio_write(pb, pkt->data, size);
2054 if ((enc->codec_id == CODEC_ID_DNXHD ||
2055 enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) {
2056 /* copy frame to create needed atoms */
2058 trk->vosData = av_malloc(size);
2060 return AVERROR(ENOMEM);
2061 memcpy(trk->vosData, pkt->data, size);
2064 if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
2065 trk->cluster = av_realloc_f(trk->cluster, sizeof(*trk->cluster), (trk->entry + MOV_INDEX_CLUSTER_SIZE));
2070 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2071 trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
2072 trk->cluster[trk->entry].size = size;
2073 trk->cluster[trk->entry].entries = samplesInChunk;
2074 trk->cluster[trk->entry].dts = pkt->dts;
2075 trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
2077 if (pkt->pts == AV_NOPTS_VALUE) {
2078 av_log(s, AV_LOG_WARNING, "pts has no value\n");
2079 pkt->pts = pkt->dts;
2081 if (pkt->dts != pkt->pts)
2082 trk->flags |= MOV_TRACK_CTTS;
2083 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2084 trk->cluster[trk->entry].flags = 0;
2085 if (pkt->flags & AV_PKT_FLAG_KEY) {
2086 if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO &&
2087 trk->entry > 0) { // force sync sample for the first key frame
2088 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2089 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2090 trk->flags |= MOV_TRACK_STPS;
2092 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2094 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2095 trk->hasKeyframes++;
2098 trk->sampleCount += samplesInChunk;
2099 mov->mdat_size += size;
2103 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2104 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry);
2108 // QuickTime chapters involve an additional text track with the chapter names
2109 // as samples, and a tref pointing from the other tracks to the chapter one.
2110 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
2112 MOVMuxContext *mov = s->priv_data;
2113 MOVTrack *track = &mov->tracks[tracknum];
2114 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
2117 track->mode = mov->mode;
2118 track->tag = MKTAG('t','e','x','t');
2119 track->timescale = MOV_TIMESCALE;
2120 track->enc = avcodec_alloc_context3(NULL);
2121 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
2123 for (i = 0; i < s->nb_chapters; i++) {
2124 AVChapter *c = s->chapters[i];
2125 AVDictionaryEntry *t;
2127 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
2128 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
2129 pkt.duration = end - pkt.dts;
2131 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2132 len = strlen(t->value);
2134 pkt.data = av_malloc(pkt.size);
2135 AV_WB16(pkt.data, len);
2136 memcpy(pkt.data+2, t->value, len);
2137 ff_mov_write_packet(s, &pkt);
2138 av_freep(&pkt.data);
2143 static int mov_write_header(AVFormatContext *s)
2145 AVIOContext *pb = s->pb;
2146 MOVMuxContext *mov = s->priv_data;
2147 AVDictionaryEntry *t;
2148 int i, hint_track = 0;
2150 if (!s->pb->seekable) {
2151 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
2155 /* Default mode == MP4 */
2156 mov->mode = MODE_MP4;
2158 if (s->oformat != NULL) {
2159 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
2160 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
2161 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
2162 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
2163 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
2165 mov_write_ftyp_tag(pb,s);
2166 if (mov->mode == MODE_PSP) {
2167 if (s->nb_streams != 2) {
2168 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
2171 mov_write_uuidprof_tag(pb,s);
2175 mov->nb_streams = s->nb_streams;
2176 if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
2177 mov->chapter_track = mov->nb_streams++;
2179 #if FF_API_FLAG_RTP_HINT
2180 if (s->flags & AVFMT_FLAG_RTP_HINT) {
2181 av_log(s, AV_LOG_WARNING, "The RTP_HINT flag is deprecated, enable it "
2182 "via the -movflags rtphint muxer option "
2184 mov->flags |= FF_MOV_FLAG_RTP_HINT;
2187 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
2188 /* Add hint tracks for each audio and video stream */
2189 hint_track = mov->nb_streams;
2190 for (i = 0; i < s->nb_streams; i++) {
2191 AVStream *st = s->streams[i];
2192 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2193 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2199 mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
2201 return AVERROR(ENOMEM);
2203 for(i=0; i<s->nb_streams; i++){
2204 AVStream *st= s->streams[i];
2205 MOVTrack *track= &mov->tracks[i];
2206 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
2208 track->enc = st->codec;
2209 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
2210 if (track->language < 0)
2211 track->language = 0;
2212 track->mode = mov->mode;
2213 track->tag = mov_find_codec_tag(s, track);
2215 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
2216 "codec not currently supported in container\n", i);
2219 /* If hinting of this track is enabled by a later hint track,
2220 * this is updated. */
2221 track->hint_track = -1;
2222 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
2223 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
2224 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
2225 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
2226 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
2227 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
2230 track->height = track->tag>>24 == 'n' ? 486 : 576;
2232 track->timescale = st->codec->time_base.den;
2233 if (track->mode == MODE_MOV && track->timescale > 100000)
2234 av_log(s, AV_LOG_WARNING,
2235 "WARNING codec timebase is very high. If duration is too long,\n"
2236 "file may not be playable by quicktime. Specify a shorter timebase\n"
2237 "or choose different container.\n");
2238 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
2239 track->timescale = st->codec->sample_rate;
2240 if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
2241 av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
2243 }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
2244 st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
2245 if (!st->codec->block_align) {
2246 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
2249 track->sampleSize = st->codec->block_align;
2250 }else if(st->codec->frame_size > 1){ /* assume compressed audio */
2251 track->audio_vbr = 1;
2253 st->codec->frame_size = 1;
2254 track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
2256 if (track->mode != MODE_MOV) {
2257 if (track->timescale > UINT16_MAX) {
2258 av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
2259 "sample rate %dhz\n", i, track->timescale);
2262 if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
2263 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
2264 i, track->enc->sample_rate);
2268 }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
2269 track->timescale = st->codec->time_base.den;
2272 track->height = st->codec->height;
2274 av_set_pts_info(st, 64, 1, track->timescale);
2277 mov_write_mdat_tag(pb, mov);
2279 #if FF_API_TIMESTAMP
2281 mov->time = s->timestamp;
2284 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
2285 mov->time = ff_iso8601_to_unix_time(t->value);
2286 mov->time += 0x7C25B080; //1970 based -> 1904 based
2288 if (mov->chapter_track)
2289 mov_create_chapter_track(s, mov->chapter_track);
2291 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
2292 /* Initialize the hint tracks for each audio and video stream */
2293 for (i = 0; i < s->nb_streams; i++) {
2294 AVStream *st = s->streams[i];
2295 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2296 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2297 ff_mov_init_hinting(s, hint_track, i);
2307 av_freep(&mov->tracks);
2311 static int mov_write_trailer(AVFormatContext *s)
2313 MOVMuxContext *mov = s->priv_data;
2314 AVIOContext *pb = s->pb;
2318 int64_t moov_pos = avio_tell(pb);
2320 /* Write size of mdat tag */
2321 if (mov->mdat_size+8 <= UINT32_MAX) {
2322 avio_seek(pb, mov->mdat_pos, SEEK_SET);
2323 avio_wb32(pb, mov->mdat_size+8);
2325 /* overwrite 'wide' placeholder atom */
2326 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
2327 avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */
2328 ffio_wfourcc(pb, "mdat");
2329 avio_wb64(pb, mov->mdat_size+16);
2331 avio_seek(pb, moov_pos, SEEK_SET);
2333 mov_write_moov_tag(pb, mov, s);
2335 if (mov->chapter_track)
2336 av_freep(&mov->tracks[mov->chapter_track].enc);
2338 for (i=0; i<mov->nb_streams; i++) {
2339 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
2340 ff_mov_close_hinting(&mov->tracks[i]);
2341 av_freep(&mov->tracks[i].cluster);
2343 if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);
2349 av_freep(&mov->tracks);
2354 #if CONFIG_MOV_MUXER
2356 AVOutputFormat ff_mov_muxer = {
2358 .long_name = NULL_IF_CONFIG_SMALL("MOV format"),
2359 .extensions = "mov",
2360 .priv_data_size = sizeof(MOVMuxContext),
2361 .audio_codec = CODEC_ID_AAC,
2362 #if CONFIG_LIBX264_ENCODER
2363 .video_codec = CODEC_ID_H264,
2365 .video_codec = CODEC_ID_MPEG4,
2367 .write_header = mov_write_header,
2368 .write_packet = ff_mov_write_packet,
2369 .write_trailer = mov_write_trailer,
2370 .flags = AVFMT_GLOBALHEADER,
2371 .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},
2372 .priv_class = &mov_muxer_class,
2375 #if CONFIG_TGP_MUXER
2377 AVOutputFormat ff_tgp_muxer = {
2379 .long_name = NULL_IF_CONFIG_SMALL("3GP format"),
2380 .extensions = "3gp",
2381 .priv_data_size = sizeof(MOVMuxContext),
2382 .audio_codec = CODEC_ID_AMR_NB,
2383 .video_codec = CODEC_ID_H263,
2384 .write_header = mov_write_header,
2385 .write_packet = ff_mov_write_packet,
2386 .write_trailer = mov_write_trailer,
2387 .flags = AVFMT_GLOBALHEADER,
2388 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2389 .priv_class = &tgp_muxer_class,
2392 #if CONFIG_MP4_MUXER
2394 AVOutputFormat ff_mp4_muxer = {
2396 .long_name = NULL_IF_CONFIG_SMALL("MP4 format"),
2397 .mime_type = "application/mp4",
2398 .extensions = "mp4",
2399 .priv_data_size = sizeof(MOVMuxContext),
2400 .audio_codec = CODEC_ID_AAC,
2401 #if CONFIG_LIBX264_ENCODER
2402 .video_codec = CODEC_ID_H264,
2404 .video_codec = CODEC_ID_MPEG4,
2406 .write_header = mov_write_header,
2407 .write_packet = ff_mov_write_packet,
2408 .write_trailer = mov_write_trailer,
2409 .flags = AVFMT_GLOBALHEADER,
2410 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2411 .priv_class = &mp4_muxer_class,
2414 #if CONFIG_PSP_MUXER
2416 AVOutputFormat ff_psp_muxer = {
2418 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 format"),
2419 .extensions = "mp4,psp",
2420 .priv_data_size = sizeof(MOVMuxContext),
2421 .audio_codec = CODEC_ID_AAC,
2422 #if CONFIG_LIBX264_ENCODER
2423 .video_codec = CODEC_ID_H264,
2425 .video_codec = CODEC_ID_MPEG4,
2427 .write_header = mov_write_header,
2428 .write_packet = ff_mov_write_packet,
2429 .write_trailer = mov_write_trailer,
2430 .flags = AVFMT_GLOBALHEADER,
2431 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2432 .priv_class = &psp_muxer_class,
2435 #if CONFIG_TG2_MUXER
2437 AVOutputFormat ff_tg2_muxer = {
2439 .long_name = NULL_IF_CONFIG_SMALL("3GP2 format"),
2440 .extensions = "3g2",
2441 .priv_data_size = sizeof(MOVMuxContext),
2442 .audio_codec = CODEC_ID_AMR_NB,
2443 .video_codec = CODEC_ID_H263,
2444 .write_header = mov_write_header,
2445 .write_packet = ff_mov_write_packet,
2446 .write_trailer = mov_write_trailer,
2447 .flags = AVFMT_GLOBALHEADER,
2448 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2449 .priv_class = &tg2_muxer_class,
2452 #if CONFIG_IPOD_MUXER
2454 AVOutputFormat ff_ipod_muxer = {
2456 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),
2457 .mime_type = "application/mp4",
2458 .extensions = "m4v,m4a",
2459 .priv_data_size = sizeof(MOVMuxContext),
2460 .audio_codec = CODEC_ID_AAC,
2461 .video_codec = CODEC_ID_H264,
2462 .write_header = mov_write_header,
2463 .write_packet = ff_mov_write_packet,
2464 .write_trailer = mov_write_trailer,
2465 .flags = AVFMT_GLOBALHEADER,
2466 .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},
2467 .priv_class = &ipod_muxer_class,