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), FF_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
46 { "rtphint", "Add RTP hint tracks", 0, FF_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 static const AVClass mov_muxer_class = {
52 .class_name = "MOV/3GP/MP4/3G2 muxer",
53 .item_name = av_default_item_name,
55 .version = LIBAVUTIL_VERSION_INT,
58 //FIXME support 64 bit variant with wide placeholders
59 static int64_t updateSize(AVIOContext *pb, int64_t pos)
61 int64_t curpos = avio_tell(pb);
62 avio_seek(pb, pos, SEEK_SET);
63 avio_wb32(pb, curpos - pos); /* rewrite size */
64 avio_seek(pb, curpos, SEEK_SET);
69 /* Chunk offset atom */
70 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
73 int mode64 = 0; // use 32 bit size variant if possible
74 int64_t pos = avio_tell(pb);
75 avio_wb32(pb, 0); /* size */
76 if (pos > UINT32_MAX) {
78 ffio_wfourcc(pb, "co64");
80 ffio_wfourcc(pb, "stco");
81 avio_wb32(pb, 0); /* version & flags */
82 avio_wb32(pb, track->entry); /* entry count */
83 for (i=0; i<track->entry; i++) {
85 avio_wb64(pb, track->cluster[i].pos);
87 avio_wb32(pb, track->cluster[i].pos);
89 return updateSize(pb, pos);
92 /* Sample size atom */
93 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
96 int i, j, entries = 0, tst = -1, oldtst = -1;
98 int64_t pos = avio_tell(pb);
99 avio_wb32(pb, 0); /* size */
100 ffio_wfourcc(pb, "stsz");
101 avio_wb32(pb, 0); /* version & flags */
103 for (i=0; i<track->entry; i++) {
104 tst = track->cluster[i].size/track->cluster[i].entries;
105 if(oldtst != -1 && tst != oldtst) {
109 entries += track->cluster[i].entries;
112 int sSize = track->cluster[0].size/track->cluster[0].entries;
113 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
114 avio_wb32(pb, sSize); // sample size
115 avio_wb32(pb, entries); // sample count
118 avio_wb32(pb, 0); // sample size
119 avio_wb32(pb, entries); // sample count
120 for (i=0; i<track->entry; i++) {
121 for (j=0; j<track->cluster[i].entries; j++) {
122 avio_wb32(pb, track->cluster[i].size /
123 track->cluster[i].entries);
127 return updateSize(pb, pos);
130 /* Sample to chunk atom */
131 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
133 int index = 0, oldval = -1, i;
134 int64_t entryPos, curpos;
136 int64_t pos = avio_tell(pb);
137 avio_wb32(pb, 0); /* size */
138 ffio_wfourcc(pb, "stsc");
139 avio_wb32(pb, 0); // version & flags
140 entryPos = avio_tell(pb);
141 avio_wb32(pb, track->entry); // entry count
142 for (i=0; i<track->entry; i++) {
143 if(oldval != track->cluster[i].samplesInChunk)
145 avio_wb32(pb, i+1); // first chunk
146 avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
147 avio_wb32(pb, 0x1); // sample description index
148 oldval = track->cluster[i].samplesInChunk;
152 curpos = avio_tell(pb);
153 avio_seek(pb, entryPos, SEEK_SET);
154 avio_wb32(pb, index); // rewrite size
155 avio_seek(pb, curpos, SEEK_SET);
157 return updateSize(pb, pos);
160 /* Sync sample atom */
161 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
163 int64_t curpos, entryPos;
165 int64_t pos = avio_tell(pb);
166 avio_wb32(pb, 0); // size
167 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
168 avio_wb32(pb, 0); // version & flags
169 entryPos = avio_tell(pb);
170 avio_wb32(pb, track->entry); // entry count
171 for (i=0; i<track->entry; i++) {
172 if (track->cluster[i].flags & flag) {
177 curpos = avio_tell(pb);
178 avio_seek(pb, entryPos, SEEK_SET);
179 avio_wb32(pb, index); // rewrite size
180 avio_seek(pb, curpos, SEEK_SET);
181 return updateSize(pb, pos);
184 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
186 avio_wb32(pb, 0x11); /* size */
187 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
188 else ffio_wfourcc(pb, "damr");
189 ffio_wfourcc(pb, "FFMP");
190 avio_w8(pb, 0); /* decoder version */
192 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
193 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
194 avio_w8(pb, 0x01); /* Frames per sample */
198 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
203 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
205 if (track->vosLen < 7)
209 ffio_wfourcc(pb, "dac3");
211 init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8);
212 fscod = get_bits(&gbc, 2);
213 frmsizecod = get_bits(&gbc, 6);
214 bsid = get_bits(&gbc, 5);
215 bsmod = get_bits(&gbc, 3);
216 acmod = get_bits(&gbc, 3);
218 skip_bits(&gbc, 2); // dsurmod
220 if ((acmod & 1) && acmod != 1)
221 skip_bits(&gbc, 2); // cmixlev
223 skip_bits(&gbc, 2); // surmixlev
225 lfeon = get_bits1(&gbc);
227 init_put_bits(&pbc, buf, sizeof(buf));
228 put_bits(&pbc, 2, fscod);
229 put_bits(&pbc, 5, bsid);
230 put_bits(&pbc, 3, bsmod);
231 put_bits(&pbc, 3, acmod);
232 put_bits(&pbc, 1, lfeon);
233 put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
234 put_bits(&pbc, 5, 0); // reserved
236 flush_put_bits(&pbc);
237 avio_write(pb, buf, sizeof(buf));
243 * This function writes extradata "as is".
244 * Extradata must be formated like a valid atom (with size and tag)
246 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
248 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
249 return track->enc->extradata_size;
252 static int mov_write_enda_tag(AVIOContext *pb)
255 ffio_wfourcc(pb, "enda");
256 avio_wb16(pb, 1); /* little endian */
260 static void putDescr(AVIOContext *pb, int tag, unsigned int size)
265 avio_w8(pb, (size>>(7*i)) | 0x80);
266 avio_w8(pb, size & 0x7F);
269 static unsigned compute_avg_bitrate(MOVTrack *track)
273 for (i = 0; i < track->entry; i++)
274 size += track->cluster[i].size;
275 return size * 8 * track->timescale / track->trackDuration;
278 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
280 int64_t pos = avio_tell(pb);
281 int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0;
282 unsigned avg_bitrate;
284 avio_wb32(pb, 0); // size
285 ffio_wfourcc(pb, "esds");
286 avio_wb32(pb, 0); // Version
289 putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1);
290 avio_wb16(pb, track->trackID);
291 avio_w8(pb, 0x00); // flags (= no flags)
293 // DecoderConfig descriptor
294 putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
296 // Object type indication
297 if ((track->enc->codec_id == CODEC_ID_MP2 ||
298 track->enc->codec_id == CODEC_ID_MP3) &&
299 track->enc->sample_rate > 24000)
300 avio_w8(pb, 0x6B); // 11172-3
302 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
304 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
305 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
306 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
307 avio_w8(pb, 0x15); // flags (= Audiostream)
309 avio_w8(pb, 0x11); // flags (= Visualstream)
311 avio_w8(pb, track->enc->rc_buffer_size>>(3+16)); // Buffersize DB (24 bits)
312 avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
314 avg_bitrate = compute_avg_bitrate(track);
315 // maxbitrate (FIXME should be max rate in any 1 sec window)
316 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
317 avio_wb32(pb, avg_bitrate);
320 // DecoderSpecific info descriptor
321 putDescr(pb, 0x05, track->vosLen);
322 avio_write(pb, track->vosData, track->vosLen);
326 putDescr(pb, 0x06, 1);
328 return updateSize(pb, pos);
331 static int mov_pcm_le_gt16(enum CodecID codec_id)
333 return codec_id == CODEC_ID_PCM_S24LE ||
334 codec_id == CODEC_ID_PCM_S32LE ||
335 codec_id == CODEC_ID_PCM_F32LE ||
336 codec_id == CODEC_ID_PCM_F64LE;
339 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
341 int64_t pos = avio_tell(pb);
343 avio_wl32(pb, track->tag); // store it byteswapped
344 track->enc->codec_tag = av_bswap16(track->tag >> 16);
345 ff_put_wav_header(pb, track->enc);
346 return updateSize(pb, pos);
349 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
351 int64_t pos = avio_tell(pb);
353 avio_wb32(pb, 0); /* size */
354 ffio_wfourcc(pb, "wave");
356 avio_wb32(pb, 12); /* size */
357 ffio_wfourcc(pb, "frma");
358 avio_wl32(pb, track->tag);
360 if (track->enc->codec_id == CODEC_ID_AAC) {
361 /* useless atom needed by mplayer, ipod, not needed by quicktime */
362 avio_wb32(pb, 12); /* size */
363 ffio_wfourcc(pb, "mp4a");
365 mov_write_esds_tag(pb, track);
366 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
367 mov_write_enda_tag(pb);
368 } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
369 mov_write_amr_tag(pb, track);
370 } else if (track->enc->codec_id == CODEC_ID_AC3) {
371 mov_write_ac3_tag(pb, track);
372 } else if (track->enc->codec_id == CODEC_ID_ALAC) {
373 mov_write_extradata_tag(pb, track);
374 } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
375 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
376 mov_write_ms_tag(pb, track);
379 avio_wb32(pb, 8); /* size */
380 avio_wb32(pb, 0); /* null tag */
382 return updateSize(pb, pos);
385 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
387 avio_wb32(pb, track->vosLen+8);
388 ffio_wfourcc(pb, "glbl");
389 avio_write(pb, track->vosData, track->vosLen);
390 return 8+track->vosLen;
394 * Compute flags for 'lpcm' tag.
395 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
397 static int mov_get_lpcm_flags(enum CodecID codec_id)
400 case CODEC_ID_PCM_F32BE:
401 case CODEC_ID_PCM_F64BE:
403 case CODEC_ID_PCM_F32LE:
404 case CODEC_ID_PCM_F64LE:
406 case CODEC_ID_PCM_U8:
408 case CODEC_ID_PCM_S16BE:
409 case CODEC_ID_PCM_S24BE:
410 case CODEC_ID_PCM_S32BE:
412 case CODEC_ID_PCM_S8:
413 case CODEC_ID_PCM_S16LE:
414 case CODEC_ID_PCM_S24LE:
415 case CODEC_ID_PCM_S32LE:
422 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
424 int64_t pos = avio_tell(pb);
426 uint32_t tag = track->tag;
428 if (track->mode == MODE_MOV) {
429 if (track->timescale > UINT16_MAX) {
430 if (mov_get_lpcm_flags(track->enc->codec_id))
431 tag = AV_RL32("lpcm");
433 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
434 track->enc->codec_id == CODEC_ID_ADPCM_MS ||
435 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
440 avio_wb32(pb, 0); /* size */
441 avio_wl32(pb, tag); // store it byteswapped
442 avio_wb32(pb, 0); /* Reserved */
443 avio_wb16(pb, 0); /* Reserved */
444 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
446 /* SoundDescription */
447 avio_wb16(pb, version); /* Version */
448 avio_wb16(pb, 0); /* Revision level */
449 avio_wb32(pb, 0); /* Reserved */
454 avio_wb16(pb, 0xfffe);
456 avio_wb32(pb, 0x00010000);
458 avio_wb64(pb, av_dbl2int(track->timescale));
459 avio_wb32(pb, track->enc->channels);
460 avio_wb32(pb, 0x7F000000);
461 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
462 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
463 avio_wb32(pb, track->sampleSize);
464 avio_wb32(pb, track->enc->frame_size);
466 if (track->mode == MODE_MOV) {
467 avio_wb16(pb, track->enc->channels);
468 if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
469 track->enc->codec_id == CODEC_ID_PCM_S8)
470 avio_wb16(pb, 8); /* bits per sample */
473 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
474 } else { /* reserved for mp4/3gp */
480 avio_wb16(pb, 0); /* packet size (= 0) */
481 avio_wb16(pb, track->timescale); /* Time scale */
482 avio_wb16(pb, 0); /* Reserved */
485 if(version == 1) { /* SoundDescription V1 extended info */
486 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
487 avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
488 avio_wb32(pb, track->sampleSize); /* Bytes per frame */
489 avio_wb32(pb, 2); /* Bytes per sample */
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);
512 return updateSize(pb, pos);
515 static int mov_write_d263_tag(AVIOContext *pb)
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 */
527 /* TODO: No idea about these values */
528 static int mov_write_svq3_tag(AVIOContext *pb)
531 ffio_wfourcc(pb, "SMI ");
532 ffio_wfourcc(pb, "SEQH");
534 avio_wb32(pb, 0xe2c0211d);
535 avio_wb32(pb, 0xc0000000);
540 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
542 int64_t pos = avio_tell(pb);
545 ffio_wfourcc(pb, "avcC");
546 ff_isom_write_avcc(pb, track->vosData, track->vosLen);
547 return updateSize(pb, pos);
550 /* also used by all avid codecs (dv, imx, meridien) and their variants */
551 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
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 */
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 */
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 */
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 */
587 avio_wb32(pb, 6); /* unknown */
590 for (i = 0; i < 10; i++)
593 /* extra padding for stsd needed */
598 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
600 int tag = track->enc->codec_tag;
602 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
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');
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 },
626 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
628 int tag = track->enc->codec_tag;
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);
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");
643 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
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');
661 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
668 static const struct {
669 enum PixelFormat pix_fmt;
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 },
689 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
691 int tag = track->enc->codec_tag;
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;
705 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
707 int tag = track->enc->codec_tag;
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);
723 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
724 "the file may be unplayable!\n");
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);
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");
736 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
737 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
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 },
754 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
756 int tag = track->enc->codec_tag;
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);
765 tag = mov_get_codec_tag(s, track);
771 * Needed to make file play in iPods running newest firmware
772 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
774 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
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);
786 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
788 int64_t pos = avio_tell(pb);
789 avio_wb32(pb, 0); /* size */
790 avio_wl32(pb, track->tag); // store it byteswapped
791 avio_wb32(pb, 0); /* Reserved */
792 avio_wb16(pb, 0); /* Reserved */
793 avio_wb16(pb, 1); /* Data-reference index */
795 if (track->enc->extradata_size)
796 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
798 return updateSize(pb, pos);
801 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
804 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
805 track->enc->sample_aspect_ratio.den, INT_MAX);
808 ffio_wfourcc(pb, "pasp");
809 avio_wb32(pb, sar.num);
810 avio_wb32(pb, sar.den);
814 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
816 int64_t pos = avio_tell(pb);
817 char compressor_name[32];
819 avio_wb32(pb, 0); /* size */
820 avio_wl32(pb, track->tag); // store it byteswapped
821 avio_wb32(pb, 0); /* Reserved */
822 avio_wb16(pb, 0); /* Reserved */
823 avio_wb16(pb, 1); /* Data-reference index */
825 avio_wb16(pb, 0); /* Codec stream version */
826 avio_wb16(pb, 0); /* Codec stream revision (=0) */
827 if (track->mode == MODE_MOV) {
828 ffio_wfourcc(pb, "FFMP"); /* Vendor */
829 if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
830 avio_wb32(pb, 0); /* Temporal Quality */
831 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
833 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
834 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
837 avio_wb32(pb, 0); /* Reserved */
838 avio_wb32(pb, 0); /* Reserved */
839 avio_wb32(pb, 0); /* Reserved */
841 avio_wb16(pb, track->enc->width); /* Video width */
842 avio_wb16(pb, track->height); /* Video height */
843 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
844 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
845 avio_wb32(pb, 0); /* Data size (= 0) */
846 avio_wb16(pb, 1); /* Frame count (= 1) */
848 memset(compressor_name,0,32);
849 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
850 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
851 av_strlcpy(compressor_name,track->enc->codec->name,32);
852 avio_w8(pb, strlen(compressor_name));
853 avio_write(pb, compressor_name, 31);
855 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
856 avio_wb16(pb, track->enc->bits_per_coded_sample);
858 avio_wb16(pb, 0x18); /* Reserved */
859 avio_wb16(pb, 0xffff); /* Reserved */
860 if(track->tag == MKTAG('m','p','4','v'))
861 mov_write_esds_tag(pb, track);
862 else if(track->enc->codec_id == CODEC_ID_H263)
863 mov_write_d263_tag(pb);
864 else if(track->enc->codec_id == CODEC_ID_SVQ3)
865 mov_write_svq3_tag(pb);
866 else if(track->enc->codec_id == CODEC_ID_DNXHD)
867 mov_write_avid_tag(pb, track);
868 else if(track->enc->codec_id == CODEC_ID_H264) {
869 mov_write_avcc_tag(pb, track);
870 if(track->mode == MODE_IPOD)
871 mov_write_uuid_tag_ipod(pb);
872 } else if(track->vosLen > 0)
873 mov_write_glbl_tag(pb, track);
875 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
876 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
877 mov_write_pasp_tag(pb, track);
880 return updateSize(pb, pos);
883 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
885 int64_t pos = avio_tell(pb);
886 avio_wb32(pb, 0); /* size */
887 ffio_wfourcc(pb, "rtp ");
888 avio_wb32(pb, 0); /* Reserved */
889 avio_wb16(pb, 0); /* Reserved */
890 avio_wb16(pb, 1); /* Data-reference index */
892 avio_wb16(pb, 1); /* Hint track version */
893 avio_wb16(pb, 1); /* Highest compatible version */
894 avio_wb32(pb, track->max_packet_size); /* Max packet size */
896 avio_wb32(pb, 12); /* size */
897 ffio_wfourcc(pb, "tims");
898 avio_wb32(pb, track->timescale);
900 return updateSize(pb, pos);
903 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
905 int64_t pos = avio_tell(pb);
906 avio_wb32(pb, 0); /* size */
907 ffio_wfourcc(pb, "stsd");
908 avio_wb32(pb, 0); /* version & flags */
909 avio_wb32(pb, 1); /* entry count */
910 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
911 mov_write_video_tag(pb, track);
912 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
913 mov_write_audio_tag(pb, track);
914 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
915 mov_write_subtitle_tag(pb, track);
916 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
917 mov_write_rtp_tag(pb, track);
918 return updateSize(pb, pos);
921 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
923 MOVStts *ctts_entries;
924 uint32_t entries = 0;
928 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
929 ctts_entries[0].count = 1;
930 ctts_entries[0].duration = track->cluster[0].cts;
931 for (i=1; i<track->entry; i++) {
932 if (track->cluster[i].cts == ctts_entries[entries].duration) {
933 ctts_entries[entries].count++; /* compress */
936 ctts_entries[entries].duration = track->cluster[i].cts;
937 ctts_entries[entries].count = 1;
940 entries++; /* last one */
941 atom_size = 16 + (entries * 8);
942 avio_wb32(pb, atom_size); /* size */
943 ffio_wfourcc(pb, "ctts");
944 avio_wb32(pb, 0); /* version & flags */
945 avio_wb32(pb, entries); /* entry count */
946 for (i=0; i<entries; i++) {
947 avio_wb32(pb, ctts_entries[i].count);
948 avio_wb32(pb, ctts_entries[i].duration);
950 av_free(ctts_entries);
954 /* Time to sample atom */
955 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
957 MOVStts *stts_entries;
958 uint32_t entries = -1;
962 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
963 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
964 stts_entries[0].count = track->sampleCount;
965 stts_entries[0].duration = 1;
968 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
969 for (i=0; i<track->entry; i++) {
970 int64_t duration = i + 1 == track->entry ?
971 track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
972 track->cluster[i+1].dts - track->cluster[i].dts;
973 if (i && duration == stts_entries[entries].duration) {
974 stts_entries[entries].count++; /* compress */
977 stts_entries[entries].duration = duration;
978 stts_entries[entries].count = 1;
981 entries++; /* last one */
983 atom_size = 16 + (entries * 8);
984 avio_wb32(pb, atom_size); /* size */
985 ffio_wfourcc(pb, "stts");
986 avio_wb32(pb, 0); /* version & flags */
987 avio_wb32(pb, entries); /* entry count */
988 for (i=0; i<entries; i++) {
989 avio_wb32(pb, stts_entries[i].count);
990 avio_wb32(pb, stts_entries[i].duration);
992 av_free(stts_entries);
996 static int mov_write_dref_tag(AVIOContext *pb)
998 avio_wb32(pb, 28); /* size */
999 ffio_wfourcc(pb, "dref");
1000 avio_wb32(pb, 0); /* version & flags */
1001 avio_wb32(pb, 1); /* entry count */
1003 avio_wb32(pb, 0xc); /* size */
1004 ffio_wfourcc(pb, "url ");
1005 avio_wb32(pb, 1); /* version & flags */
1010 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1012 int64_t pos = avio_tell(pb);
1013 avio_wb32(pb, 0); /* size */
1014 ffio_wfourcc(pb, "stbl");
1015 mov_write_stsd_tag(pb, track);
1016 mov_write_stts_tag(pb, track);
1017 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1018 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1019 track->hasKeyframes && track->hasKeyframes < track->entry)
1020 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1021 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1022 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1023 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1024 track->flags & MOV_TRACK_CTTS)
1025 mov_write_ctts_tag(pb, track);
1026 mov_write_stsc_tag(pb, track);
1027 mov_write_stsz_tag(pb, track);
1028 mov_write_stco_tag(pb, track);
1029 return updateSize(pb, pos);
1032 static int mov_write_dinf_tag(AVIOContext *pb)
1034 int64_t pos = avio_tell(pb);
1035 avio_wb32(pb, 0); /* size */
1036 ffio_wfourcc(pb, "dinf");
1037 mov_write_dref_tag(pb);
1038 return updateSize(pb, pos);
1041 static int mov_write_nmhd_tag(AVIOContext *pb)
1044 ffio_wfourcc(pb, "nmhd");
1049 static int mov_write_gmhd_tag(AVIOContext *pb)
1051 avio_wb32(pb, 0x20); /* size */
1052 ffio_wfourcc(pb, "gmhd");
1053 avio_wb32(pb, 0x18); /* gmin size */
1054 ffio_wfourcc(pb, "gmin");/* generic media info */
1055 avio_wb32(pb, 0); /* version & flags */
1056 avio_wb16(pb, 0x40); /* graphics mode = */
1057 avio_wb16(pb, 0x8000); /* opColor (r?) */
1058 avio_wb16(pb, 0x8000); /* opColor (g?) */
1059 avio_wb16(pb, 0x8000); /* opColor (b?) */
1060 avio_wb16(pb, 0); /* balance */
1061 avio_wb16(pb, 0); /* reserved */
1065 static int mov_write_smhd_tag(AVIOContext *pb)
1067 avio_wb32(pb, 16); /* size */
1068 ffio_wfourcc(pb, "smhd");
1069 avio_wb32(pb, 0); /* version & flags */
1070 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1071 avio_wb16(pb, 0); /* reserved */
1075 static int mov_write_vmhd_tag(AVIOContext *pb)
1077 avio_wb32(pb, 0x14); /* size (always 0x14) */
1078 ffio_wfourcc(pb, "vmhd");
1079 avio_wb32(pb, 0x01); /* version & flags */
1080 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1084 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1086 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1087 int64_t pos = avio_tell(pb);
1089 if (!track) { /* no media --> data handler */
1092 descr = "DataHandler";
1094 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1095 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1097 descr = "VideoHandler";
1098 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1100 descr = "SoundHandler";
1101 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1102 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1103 else hdlr_type = "text";
1104 descr = "SubtitleHandler";
1105 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1107 descr = "HintHandler";
1111 avio_wb32(pb, 0); /* size */
1112 ffio_wfourcc(pb, "hdlr");
1113 avio_wb32(pb, 0); /* Version & flags */
1114 avio_write(pb, hdlr, 4); /* handler */
1115 ffio_wfourcc(pb, hdlr_type); /* handler type */
1116 avio_wb32(pb ,0); /* reserved */
1117 avio_wb32(pb ,0); /* reserved */
1118 avio_wb32(pb ,0); /* reserved */
1119 if (!track || track->mode == MODE_MOV)
1120 avio_w8(pb, strlen(descr)); /* pascal string */
1121 avio_write(pb, descr, strlen(descr)); /* handler description */
1122 if (track && track->mode != MODE_MOV)
1123 avio_w8(pb, 0); /* c string */
1124 return updateSize(pb, pos);
1127 static int mov_write_hmhd_tag(AVIOContext *pb)
1129 /* This atom must be present, but leaving the values at zero
1130 * seems harmless. */
1131 avio_wb32(pb, 28); /* size */
1132 ffio_wfourcc(pb, "hmhd");
1133 avio_wb32(pb, 0); /* version, flags */
1134 avio_wb16(pb, 0); /* maxPDUsize */
1135 avio_wb16(pb, 0); /* avgPDUsize */
1136 avio_wb32(pb, 0); /* maxbitrate */
1137 avio_wb32(pb, 0); /* avgbitrate */
1138 avio_wb32(pb, 0); /* reserved */
1142 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1144 int64_t pos = avio_tell(pb);
1145 avio_wb32(pb, 0); /* size */
1146 ffio_wfourcc(pb, "minf");
1147 if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1148 mov_write_vmhd_tag(pb);
1149 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1150 mov_write_smhd_tag(pb);
1151 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1152 if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1153 else mov_write_nmhd_tag(pb);
1154 } else if (track->tag == MKTAG('r','t','p',' ')) {
1155 mov_write_hmhd_tag(pb);
1157 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1158 mov_write_hdlr_tag(pb, NULL);
1159 mov_write_dinf_tag(pb);
1160 mov_write_stbl_tag(pb, track);
1161 return updateSize(pb, pos);
1164 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1166 int version = track->trackDuration < INT32_MAX ? 0 : 1;
1168 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1169 ffio_wfourcc(pb, "mdhd");
1170 avio_w8(pb, version);
1171 avio_wb24(pb, 0); /* flags */
1173 avio_wb64(pb, track->time);
1174 avio_wb64(pb, track->time);
1176 avio_wb32(pb, track->time); /* creation time */
1177 avio_wb32(pb, track->time); /* modification time */
1179 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1180 (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */
1181 avio_wb16(pb, track->language); /* language */
1182 avio_wb16(pb, 0); /* reserved (quality) */
1184 if(version!=0 && track->mode == MODE_MOV){
1185 av_log(NULL, AV_LOG_ERROR,
1186 "FATAL error, file duration too long for timebase, this file will not be\n"
1187 "playable with quicktime. Choose a different timebase or a different\n"
1188 "container format\n");
1194 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1196 int64_t pos = avio_tell(pb);
1197 avio_wb32(pb, 0); /* size */
1198 ffio_wfourcc(pb, "mdia");
1199 mov_write_mdhd_tag(pb, track);
1200 mov_write_hdlr_tag(pb, track);
1201 mov_write_minf_tag(pb, track);
1202 return updateSize(pb, pos);
1205 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1207 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1208 track->timescale, AV_ROUND_UP);
1209 int version = duration < INT32_MAX ? 0 : 1;
1211 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1212 ffio_wfourcc(pb, "tkhd");
1213 avio_w8(pb, version);
1214 avio_wb24(pb, 0xf); /* flags (track enabled) */
1216 avio_wb64(pb, track->time);
1217 avio_wb64(pb, track->time);
1219 avio_wb32(pb, track->time); /* creation time */
1220 avio_wb32(pb, track->time); /* modification time */
1222 avio_wb32(pb, track->trackID); /* track-id */
1223 avio_wb32(pb, 0); /* reserved */
1224 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1226 avio_wb32(pb, 0); /* reserved */
1227 avio_wb32(pb, 0); /* reserved */
1228 avio_wb16(pb, 0); /* layer */
1229 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1230 /* Volume, only for audio */
1231 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1232 avio_wb16(pb, 0x0100);
1235 avio_wb16(pb, 0); /* reserved */
1237 /* Matrix structure */
1238 avio_wb32(pb, 0x00010000); /* reserved */
1239 avio_wb32(pb, 0x0); /* reserved */
1240 avio_wb32(pb, 0x0); /* reserved */
1241 avio_wb32(pb, 0x0); /* reserved */
1242 avio_wb32(pb, 0x00010000); /* reserved */
1243 avio_wb32(pb, 0x0); /* reserved */
1244 avio_wb32(pb, 0x0); /* reserved */
1245 avio_wb32(pb, 0x0); /* reserved */
1246 avio_wb32(pb, 0x40000000); /* reserved */
1248 /* Track width and height, for visual only */
1249 if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1250 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1251 if(track->mode == MODE_MOV) {
1252 avio_wb32(pb, track->enc->width << 16);
1253 avio_wb32(pb, track->height << 16);
1255 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1256 if(!sample_aspect_ratio || track->height != track->enc->height)
1257 sample_aspect_ratio = 1;
1258 avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1259 avio_wb32(pb, track->height*0x10000);
1269 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1271 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1272 track->enc->sample_aspect_ratio.den);
1274 int64_t pos = avio_tell(pb);
1276 avio_wb32(pb, 0); /* size */
1277 ffio_wfourcc(pb, "tapt");
1280 ffio_wfourcc(pb, "clef");
1282 avio_wb32(pb, width << 16);
1283 avio_wb32(pb, track->enc->height << 16);
1286 ffio_wfourcc(pb, "enof");
1288 avio_wb32(pb, track->enc->width << 16);
1289 avio_wb32(pb, track->enc->height << 16);
1291 return updateSize(pb, pos);
1294 // This box seems important for the psp playback ... without it the movie seems to hang
1295 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1297 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1298 track->timescale, AV_ROUND_UP);
1299 int version = duration < INT32_MAX ? 0 : 1;
1300 int entry_size, entry_count, size;
1301 int64_t delay, start_ct = track->cluster[0].cts;
1302 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1303 track->timescale, AV_ROUND_DOWN);
1304 version |= delay < INT32_MAX ? 0 : 1;
1306 entry_size = (version == 1) ? 20 : 12;
1307 entry_count = 1 + (delay > 0);
1308 size = 24 + entry_count * entry_size;
1310 /* write the atom data */
1311 avio_wb32(pb, size);
1312 ffio_wfourcc(pb, "edts");
1313 avio_wb32(pb, size - 8);
1314 ffio_wfourcc(pb, "elst");
1315 avio_w8(pb, version);
1316 avio_wb24(pb, 0); /* flags */
1318 avio_wb32(pb, entry_count);
1319 if (delay > 0) { /* add an empty edit to delay presentation */
1321 avio_wb64(pb, delay);
1324 avio_wb32(pb, delay);
1327 avio_wb32(pb, 0x00010000);
1332 avio_wb64(pb, duration);
1333 avio_wb64(pb, start_ct);
1335 avio_wb32(pb, duration);
1336 avio_wb32(pb, start_ct);
1338 avio_wb32(pb, 0x00010000);
1342 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1344 avio_wb32(pb, 20); // size
1345 ffio_wfourcc(pb, "tref");
1346 avio_wb32(pb, 12); // size (subatom)
1347 avio_wl32(pb, track->tref_tag);
1348 avio_wb32(pb, track->tref_id);
1352 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1353 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1355 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1356 ffio_wfourcc(pb, "uuid");
1357 ffio_wfourcc(pb, "USMT");
1358 avio_wb32(pb, 0x21d24fce);
1359 avio_wb32(pb, 0xbb88695c);
1360 avio_wb32(pb, 0xfac9c740);
1361 avio_wb32(pb, 0x1c); // another size here!
1362 ffio_wfourcc(pb, "MTDT");
1363 avio_wb32(pb, 0x00010012);
1364 avio_wb32(pb, 0x0a);
1365 avio_wb32(pb, 0x55c40000);
1371 static int mov_write_udta_sdp(AVIOContext *pb, AVFormatContext *ctx, int index)
1373 char buf[1000] = "";
1376 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0]->codec, NULL, NULL, 0, 0, ctx);
1377 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
1380 avio_wb32(pb, len + 24);
1381 ffio_wfourcc(pb, "udta");
1382 avio_wb32(pb, len + 16);
1383 ffio_wfourcc(pb, "hnti");
1384 avio_wb32(pb, len + 8);
1385 ffio_wfourcc(pb, "sdp ");
1386 avio_write(pb, buf, len);
1390 static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1392 int64_t pos = avio_tell(pb);
1393 avio_wb32(pb, 0); /* size */
1394 ffio_wfourcc(pb, "trak");
1395 mov_write_tkhd_tag(pb, track, st);
1396 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS || track->cluster[0].dts)
1397 mov_write_edts_tag(pb, track); // PSP Movies require edts box
1398 if (track->tref_tag)
1399 mov_write_tref_tag(pb, track);
1400 mov_write_mdia_tag(pb, track);
1401 if (track->mode == MODE_PSP)
1402 mov_write_uuid_tag_psp(pb,track); // PSP Movies require this uuid box
1403 if (track->tag == MKTAG('r','t','p',' '))
1404 mov_write_udta_sdp(pb, track->rtp_ctx, track->trackID);
1405 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1406 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1407 if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1408 mov_write_tapt_tag(pb, track);
1410 return updateSize(pb, pos);
1414 /* TODO: Not sorted out, but not necessary either */
1415 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1417 avio_wb32(pb, 0x15); /* size */
1418 ffio_wfourcc(pb, "iods");
1419 avio_wb32(pb, 0); /* version & flags */
1420 avio_wb16(pb, 0x1007);
1422 avio_wb16(pb, 0x4fff);
1423 avio_wb16(pb, 0xfffe);
1424 avio_wb16(pb, 0x01ff);
1429 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1431 int maxTrackID = 1, i;
1432 int64_t maxTrackLenTemp, maxTrackLen = 0;
1435 for (i=0; i<mov->nb_streams; i++) {
1436 if(mov->tracks[i].entry > 0) {
1437 maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration,
1439 mov->tracks[i].timescale,
1441 if(maxTrackLen < maxTrackLenTemp)
1442 maxTrackLen = maxTrackLenTemp;
1443 if(maxTrackID < mov->tracks[i].trackID)
1444 maxTrackID = mov->tracks[i].trackID;
1448 version = maxTrackLen < UINT32_MAX ? 0 : 1;
1449 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1450 ffio_wfourcc(pb, "mvhd");
1451 avio_w8(pb, version);
1452 avio_wb24(pb, 0); /* flags */
1454 avio_wb64(pb, mov->time);
1455 avio_wb64(pb, mov->time);
1457 avio_wb32(pb, mov->time); /* creation time */
1458 avio_wb32(pb, mov->time); /* modification time */
1460 avio_wb32(pb, MOV_TIMESCALE);
1461 (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */
1463 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1464 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1465 avio_wb16(pb, 0); /* reserved */
1466 avio_wb32(pb, 0); /* reserved */
1467 avio_wb32(pb, 0); /* reserved */
1469 /* Matrix structure */
1470 avio_wb32(pb, 0x00010000); /* reserved */
1471 avio_wb32(pb, 0x0); /* reserved */
1472 avio_wb32(pb, 0x0); /* reserved */
1473 avio_wb32(pb, 0x0); /* reserved */
1474 avio_wb32(pb, 0x00010000); /* reserved */
1475 avio_wb32(pb, 0x0); /* reserved */
1476 avio_wb32(pb, 0x0); /* reserved */
1477 avio_wb32(pb, 0x0); /* reserved */
1478 avio_wb32(pb, 0x40000000); /* reserved */
1480 avio_wb32(pb, 0); /* reserved (preview time) */
1481 avio_wb32(pb, 0); /* reserved (preview duration) */
1482 avio_wb32(pb, 0); /* reserved (poster time) */
1483 avio_wb32(pb, 0); /* reserved (selection time) */
1484 avio_wb32(pb, 0); /* reserved (selection duration) */
1485 avio_wb32(pb, 0); /* reserved (current time) */
1486 avio_wb32(pb, maxTrackID+1); /* Next track id */
1490 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1493 avio_wb32(pb, 33); /* size */
1494 ffio_wfourcc(pb, "hdlr");
1497 ffio_wfourcc(pb, "mdir");
1498 ffio_wfourcc(pb, "appl");
1505 /* helper function to write a data tag with the specified string as data */
1506 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1509 int size = 16 + strlen(data);
1510 avio_wb32(pb, size); /* size */
1511 ffio_wfourcc(pb, "data");
1514 avio_write(pb, data, strlen(data));
1518 lang = ff_mov_iso639_to_lang("und", 1);
1519 avio_wb16(pb, strlen(data)); /* string length */
1520 avio_wb16(pb, lang);
1521 avio_write(pb, data, strlen(data));
1522 return strlen(data) + 4;
1526 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1528 if (value && value[0]) {
1529 int64_t pos = avio_tell(pb);
1530 avio_wb32(pb, 0); /* size */
1531 ffio_wfourcc(pb, name);
1532 mov_write_string_data_tag(pb, value, lang, long_style);
1533 size= updateSize(pb, pos);
1538 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1539 const char *name, const char *tag,
1542 int l, lang = 0, len, len2;
1543 AVDictionaryEntry *t, *t2 = NULL;
1546 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1549 len = strlen(t->key);
1550 snprintf(tag2, sizeof(tag2), "%s-", tag);
1551 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1552 len2 = strlen(t2->key);
1553 if (len2 == len+4 && !strcmp(t->value, t2->value)
1554 && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1559 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1562 /* iTunes track number */
1563 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1566 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1567 int size = 0, track = t ? atoi(t->value) : 0;
1569 avio_wb32(pb, 32); /* size */
1570 ffio_wfourcc(pb, "trkn");
1571 avio_wb32(pb, 24); /* size */
1572 ffio_wfourcc(pb, "data");
1573 avio_wb32(pb, 0); // 8 bytes empty
1575 avio_wb16(pb, 0); // empty
1576 avio_wb16(pb, track); // track number
1577 avio_wb16(pb, 0); // total track number
1578 avio_wb16(pb, 0); // empty
1584 /* iTunes meta data list */
1585 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1588 int64_t pos = avio_tell(pb);
1589 avio_wb32(pb, 0); /* size */
1590 ffio_wfourcc(pb, "ilst");
1591 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
1592 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
1593 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1594 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1595 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
1596 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
1597 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1598 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
1599 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
1600 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1601 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1602 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
1603 mov_write_string_metadata(s, pb, "desc", "description",1);
1604 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
1605 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
1606 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
1607 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
1608 mov_write_trkn_tag(pb, mov, s);
1609 return updateSize(pb, pos);
1612 /* iTunes meta data tag */
1613 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1617 int64_t pos = avio_tell(pb);
1618 avio_wb32(pb, 0); /* size */
1619 ffio_wfourcc(pb, "meta");
1621 mov_write_itunes_hdlr_tag(pb, mov, s);
1622 mov_write_ilst_tag(pb, mov, s);
1623 size = updateSize(pb, pos);
1627 static int utf8len(const uint8_t *b)
1632 GET_UTF8(val, *b++, return -1;)
1638 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1642 GET_UTF8(val, *b++, return -1;)
1645 avio_wb16(pb, 0x00);
1649 static uint16_t language_code(const char *str)
1651 return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
1654 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1655 const char *tag, const char *str)
1657 int64_t pos = avio_tell(pb);
1658 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
1659 if (!t || !utf8len(t->value))
1661 avio_wb32(pb, 0); /* size */
1662 ffio_wfourcc(pb, tag); /* type */
1663 avio_wb32(pb, 0); /* version + flags */
1664 if (!strcmp(tag, "yrrc"))
1665 avio_wb16(pb, atoi(t->value));
1667 avio_wb16(pb, language_code("eng")); /* language */
1668 avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
1669 if (!strcmp(tag, "albm") &&
1670 (t = av_dict_get(s->metadata, "track", NULL, 0)))
1671 avio_w8(pb, atoi(t->value));
1673 return updateSize(pb, pos);
1676 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1678 int64_t pos = avio_tell(pb);
1679 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1681 avio_wb32(pb, 0); // size
1682 ffio_wfourcc(pb, "chpl");
1683 avio_wb32(pb, 0x01000000); // version + flags
1684 avio_wb32(pb, 0); // unknown
1685 avio_w8(pb, nb_chapters);
1687 for (i = 0; i < nb_chapters; i++) {
1688 AVChapter *c = s->chapters[i];
1689 AVDictionaryEntry *t;
1690 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1692 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1693 int len = FFMIN(strlen(t->value), 255);
1695 avio_write(pb, t->value, len);
1699 return updateSize(pb, pos);
1702 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1705 AVIOContext *pb_buf;
1709 for (i = 0; i < s->nb_streams; i++)
1710 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1714 ret = avio_open_dyn_buf(&pb_buf);
1718 if (mov->mode & MODE_3GP) {
1719 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1720 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1721 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1722 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1723 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1724 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1725 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1726 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1727 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1728 mov_write_string_metadata(s, pb_buf, "\251ART", "artist" , 0);
1729 mov_write_string_metadata(s, pb_buf, "\251nam", "title" , 0);
1730 mov_write_string_metadata(s, pb_buf, "\251aut", "author" , 0);
1731 mov_write_string_metadata(s, pb_buf, "\251alb", "album" , 0);
1732 mov_write_string_metadata(s, pb_buf, "\251day", "date" , 0);
1733 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder" , 0);
1734 mov_write_string_metadata(s, pb_buf, "\251des", "comment" , 0);
1735 mov_write_string_metadata(s, pb_buf, "\251gen", "genre" , 0);
1736 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright" , 0);
1738 /* iTunes meta data */
1739 mov_write_meta_tag(pb_buf, mov, s);
1743 mov_write_chpl_tag(pb_buf, s);
1745 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1746 avio_wb32(pb, size+8);
1747 ffio_wfourcc(pb, "udta");
1748 avio_write(pb, buf, size);
1755 static void mov_write_psp_udta_tag(AVIOContext *pb,
1756 const char *str, const char *lang, int type)
1758 int len = utf8len(str)+1;
1761 avio_wb16(pb, len*2+10); /* size */
1762 avio_wb32(pb, type); /* type */
1763 avio_wb16(pb, language_code(lang)); /* language */
1764 avio_wb16(pb, 0x01); /* ? */
1765 ascii_to_wc(pb, str);
1768 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
1770 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
1774 pos = avio_tell(pb);
1775 avio_wb32(pb, 0); /* size placeholder*/
1776 ffio_wfourcc(pb, "uuid");
1777 ffio_wfourcc(pb, "USMT");
1778 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1779 avio_wb32(pb, 0xbb88695c);
1780 avio_wb32(pb, 0xfac9c740);
1782 pos2 = avio_tell(pb);
1783 avio_wb32(pb, 0); /* size placeholder*/
1784 ffio_wfourcc(pb, "MTDT");
1788 avio_wb16(pb, 0x0C); /* size */
1789 avio_wb32(pb, 0x0B); /* type */
1790 avio_wb16(pb, language_code("und")); /* language */
1791 avio_wb16(pb, 0x0); /* ? */
1792 avio_wb16(pb, 0x021C); /* data */
1794 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
1795 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
1796 // 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);
1797 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
1799 updateSize(pb, pos2);
1800 return updateSize(pb, pos);
1806 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
1810 int64_t pos = avio_tell(pb);
1811 avio_wb32(pb, 0); /* size placeholder*/
1812 ffio_wfourcc(pb, "moov");
1814 for (i=0; i<mov->nb_streams; i++) {
1815 if(mov->tracks[i].entry <= 0) continue;
1817 mov->tracks[i].time = mov->time;
1818 mov->tracks[i].trackID = i+1;
1821 if (mov->chapter_track)
1822 for (i=0; i<s->nb_streams; i++) {
1823 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
1824 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID;
1826 for (i = 0; i < mov->nb_streams; i++) {
1827 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
1828 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
1829 mov->tracks[i].tref_id =
1830 mov->tracks[mov->tracks[i].src_track].trackID;
1834 mov_write_mvhd_tag(pb, mov);
1835 //mov_write_iods_tag(pb, mov);
1836 for (i=0; i<mov->nb_streams; i++) {
1837 if(mov->tracks[i].entry > 0) {
1838 mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
1842 if (mov->mode == MODE_PSP)
1843 mov_write_uuidusmt_tag(pb, s);
1845 mov_write_udta_tag(pb, mov, s);
1847 return updateSize(pb, pos);
1850 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
1852 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
1853 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
1855 mov->mdat_pos = avio_tell(pb);
1856 avio_wb32(pb, 0); /* size placeholder*/
1857 ffio_wfourcc(pb, "mdat");
1861 /* TODO: This needs to be more general */
1862 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
1864 MOVMuxContext *mov = s->priv_data;
1865 int64_t pos = avio_tell(pb);
1866 int has_h264 = 0, has_video = 0;
1870 for (i = 0; i < s->nb_streams; i++) {
1871 AVStream *st = s->streams[i];
1872 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1874 if (st->codec->codec_id == CODEC_ID_H264)
1878 avio_wb32(pb, 0); /* size */
1879 ffio_wfourcc(pb, "ftyp");
1881 if (mov->mode == MODE_3GP) {
1882 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
1883 minor = has_h264 ? 0x100 : 0x200;
1884 } else if (mov->mode & MODE_3G2) {
1885 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
1886 minor = has_h264 ? 0x20000 : 0x10000;
1887 }else if (mov->mode == MODE_PSP)
1888 ffio_wfourcc(pb, "MSNV");
1889 else if (mov->mode == MODE_MP4)
1890 ffio_wfourcc(pb, "isom");
1891 else if (mov->mode == MODE_IPOD)
1892 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
1894 ffio_wfourcc(pb, "qt ");
1896 avio_wb32(pb, minor);
1898 if(mov->mode == MODE_MOV)
1899 ffio_wfourcc(pb, "qt ");
1901 ffio_wfourcc(pb, "isom");
1902 ffio_wfourcc(pb, "iso2");
1904 ffio_wfourcc(pb, "avc1");
1907 if (mov->mode == MODE_3GP)
1908 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
1909 else if (mov->mode & MODE_3G2)
1910 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
1911 else if (mov->mode == MODE_PSP)
1912 ffio_wfourcc(pb, "MSNV");
1913 else if (mov->mode == MODE_MP4)
1914 ffio_wfourcc(pb, "mp41");
1915 return updateSize(pb, pos);
1918 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
1920 AVCodecContext *VideoCodec = s->streams[0]->codec;
1921 AVCodecContext *AudioCodec = s->streams[1]->codec;
1922 int AudioRate = AudioCodec->sample_rate;
1923 int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);
1924 int audio_kbitrate= AudioCodec->bit_rate / 1000;
1925 int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate);
1927 avio_wb32(pb, 0x94); /* size */
1928 ffio_wfourcc(pb, "uuid");
1929 ffio_wfourcc(pb, "PROF");
1931 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1932 avio_wb32(pb, 0xbb88695c);
1933 avio_wb32(pb, 0xfac9c740);
1935 avio_wb32(pb, 0x0); /* ? */
1936 avio_wb32(pb, 0x3); /* 3 sections ? */
1938 avio_wb32(pb, 0x14); /* size */
1939 ffio_wfourcc(pb, "FPRF");
1940 avio_wb32(pb, 0x0); /* ? */
1941 avio_wb32(pb, 0x0); /* ? */
1942 avio_wb32(pb, 0x0); /* ? */
1944 avio_wb32(pb, 0x2c); /* size */
1945 ffio_wfourcc(pb, "APRF");/* audio */
1947 avio_wb32(pb, 0x2); /* TrackID */
1948 ffio_wfourcc(pb, "mp4a");
1949 avio_wb32(pb, 0x20f);
1951 avio_wb32(pb, audio_kbitrate);
1952 avio_wb32(pb, audio_kbitrate);
1953 avio_wb32(pb, AudioRate);
1954 avio_wb32(pb, AudioCodec->channels);
1956 avio_wb32(pb, 0x34); /* size */
1957 ffio_wfourcc(pb, "VPRF"); /* video */
1959 avio_wb32(pb, 0x1); /* TrackID */
1960 if (VideoCodec->codec_id == CODEC_ID_H264) {
1961 ffio_wfourcc(pb, "avc1");
1962 avio_wb16(pb, 0x014D);
1963 avio_wb16(pb, 0x0015);
1965 ffio_wfourcc(pb, "mp4v");
1966 avio_wb16(pb, 0x0000);
1967 avio_wb16(pb, 0x0103);
1970 avio_wb32(pb, video_kbitrate);
1971 avio_wb32(pb, video_kbitrate);
1972 avio_wb32(pb, FrameRate);
1973 avio_wb32(pb, FrameRate);
1974 avio_wb16(pb, VideoCodec->width);
1975 avio_wb16(pb, VideoCodec->height);
1976 avio_wb32(pb, 0x010001); /* ? */
1979 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
1982 int i, closed_gop = 0;
1984 for (i = 0; i < pkt->size - 4; i++) {
1985 c = (c<<8) + pkt->data[i];
1986 if (c == 0x1b8) { // gop
1987 closed_gop = pkt->data[i+4]>>6 & 0x01;
1988 } else if (c == 0x100) { // pic
1989 int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1990 if (!temp_ref || closed_gop) // I picture is not reordered
1991 *flags = MOV_SYNC_SAMPLE;
1993 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2000 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
2002 MOVMuxContext *mov = s->priv_data;
2003 AVIOContext *pb = s->pb;
2004 MOVTrack *trk = &mov->tracks[pkt->stream_index];
2005 AVCodecContext *enc = trk->enc;
2006 unsigned int samplesInChunk = 0;
2007 int size= pkt->size;
2009 if (!s->pb->seekable) return 0; /* Can't handle that */
2010 if (!size) return 0; /* Discard 0 sized packets */
2012 if (enc->codec_id == CODEC_ID_AMR_NB) {
2013 /* We must find out how many AMR blocks there are in one packet */
2014 static uint16_t packed_size[16] =
2015 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
2018 while (len < size && samplesInChunk < 100) {
2019 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
2022 if(samplesInChunk > 1){
2023 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
2026 } else if (enc->codec_id == CODEC_ID_ADPCM_MS ||
2027 enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
2028 samplesInChunk = enc->frame_size;
2029 } else if (trk->sampleSize)
2030 samplesInChunk = size/trk->sampleSize;
2034 /* copy extradata if it exists */
2035 if (trk->vosLen == 0 && enc->extradata_size > 0) {
2036 trk->vosLen = enc->extradata_size;
2037 trk->vosData = av_malloc(trk->vosLen);
2038 memcpy(trk->vosData, enc->extradata, trk->vosLen);
2041 if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
2042 /* from x264 or from bytestream h264 */
2043 /* nal reformating needed */
2044 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
2045 } else if (enc->codec_id == CODEC_ID_AAC && pkt->size > 2 &&
2046 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
2047 av_log(s, AV_LOG_ERROR, "malformated aac bitstream, use -absf aac_adtstoasc\n");
2050 avio_write(pb, pkt->data, size);
2053 if ((enc->codec_id == CODEC_ID_DNXHD ||
2054 enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) {
2055 /* copy frame to create needed atoms */
2057 trk->vosData = av_malloc(size);
2059 return AVERROR(ENOMEM);
2060 memcpy(trk->vosData, pkt->data, size);
2063 if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
2064 trk->cluster = av_realloc_f(trk->cluster, sizeof(*trk->cluster), (trk->entry + MOV_INDEX_CLUSTER_SIZE));
2069 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2070 trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
2071 trk->cluster[trk->entry].size = size;
2072 trk->cluster[trk->entry].entries = samplesInChunk;
2073 trk->cluster[trk->entry].dts = pkt->dts;
2074 trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
2076 if (pkt->pts == AV_NOPTS_VALUE) {
2077 av_log(s, AV_LOG_WARNING, "pts has no value\n");
2078 pkt->pts = pkt->dts;
2080 if (pkt->dts != pkt->pts)
2081 trk->flags |= MOV_TRACK_CTTS;
2082 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2083 trk->cluster[trk->entry].flags = 0;
2084 if (pkt->flags & AV_PKT_FLAG_KEY) {
2085 if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO &&
2086 trk->entry > 0) { // force sync sample for the first key frame
2087 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2088 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2089 trk->flags |= MOV_TRACK_STPS;
2091 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2093 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2094 trk->hasKeyframes++;
2097 trk->sampleCount += samplesInChunk;
2098 mov->mdat_size += size;
2102 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2103 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry);
2107 // QuickTime chapters involve an additional text track with the chapter names
2108 // as samples, and a tref pointing from the other tracks to the chapter one.
2109 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
2111 MOVMuxContext *mov = s->priv_data;
2112 MOVTrack *track = &mov->tracks[tracknum];
2113 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
2116 track->mode = mov->mode;
2117 track->tag = MKTAG('t','e','x','t');
2118 track->timescale = MOV_TIMESCALE;
2119 track->enc = avcodec_alloc_context3(NULL);
2120 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
2122 for (i = 0; i < s->nb_chapters; i++) {
2123 AVChapter *c = s->chapters[i];
2124 AVDictionaryEntry *t;
2126 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
2127 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
2128 pkt.duration = end - pkt.dts;
2130 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2131 len = strlen(t->value);
2133 pkt.data = av_malloc(pkt.size);
2134 AV_WB16(pkt.data, len);
2135 memcpy(pkt.data+2, t->value, len);
2136 ff_mov_write_packet(s, &pkt);
2137 av_freep(&pkt.data);
2142 static int mov_write_header(AVFormatContext *s)
2144 AVIOContext *pb = s->pb;
2145 MOVMuxContext *mov = s->priv_data;
2146 AVDictionaryEntry *t;
2147 int i, hint_track = 0;
2149 if (!s->pb->seekable) {
2150 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
2154 /* Default mode == MP4 */
2155 mov->mode = MODE_MP4;
2157 if (s->oformat != NULL) {
2158 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
2159 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
2160 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
2161 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
2162 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
2164 mov_write_ftyp_tag(pb,s);
2165 if (mov->mode == MODE_PSP) {
2166 if (s->nb_streams != 2) {
2167 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
2170 mov_write_uuidprof_tag(pb,s);
2174 mov->nb_streams = s->nb_streams;
2175 if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
2176 mov->chapter_track = mov->nb_streams++;
2178 #if FF_API_FLAG_RTP_HINT
2179 if (s->flags & AVFMT_FLAG_RTP_HINT) {
2180 av_log(s, AV_LOG_WARNING, "The RTP_HINT flag is deprecated, enable it "
2181 "via the -movflags rtphint muxer option "
2183 mov->flags |= FF_MOV_FLAG_RTP_HINT;
2186 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
2187 /* Add hint tracks for each audio and video stream */
2188 hint_track = mov->nb_streams;
2189 for (i = 0; i < s->nb_streams; i++) {
2190 AVStream *st = s->streams[i];
2191 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2192 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2198 mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
2200 return AVERROR(ENOMEM);
2202 for(i=0; i<s->nb_streams; i++){
2203 AVStream *st= s->streams[i];
2204 MOVTrack *track= &mov->tracks[i];
2205 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
2207 track->enc = st->codec;
2208 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
2209 if (track->language < 0)
2210 track->language = 0;
2211 track->mode = mov->mode;
2212 track->tag = mov_find_codec_tag(s, track);
2214 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
2215 "codec not currently supported in container\n", i);
2218 /* If hinting of this track is enabled by a later hint track,
2219 * this is updated. */
2220 track->hint_track = -1;
2221 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
2222 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
2223 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
2224 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
2225 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
2226 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
2229 track->height = track->tag>>24 == 'n' ? 486 : 576;
2231 track->timescale = st->codec->time_base.den;
2232 if (track->mode == MODE_MOV && track->timescale > 100000)
2233 av_log(s, AV_LOG_WARNING,
2234 "WARNING codec timebase is very high. If duration is too long,\n"
2235 "file may not be playable by quicktime. Specify a shorter timebase\n"
2236 "or choose different container.\n");
2237 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
2238 track->timescale = st->codec->sample_rate;
2239 if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
2240 av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
2242 }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
2243 st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
2244 if (!st->codec->block_align) {
2245 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
2248 track->sampleSize = st->codec->block_align;
2249 }else if(st->codec->frame_size > 1){ /* assume compressed audio */
2250 track->audio_vbr = 1;
2252 st->codec->frame_size = 1;
2253 track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
2255 if (track->mode != MODE_MOV) {
2256 if (track->timescale > UINT16_MAX) {
2257 av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
2258 "sample rate %dhz\n", i, track->timescale);
2261 if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
2262 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
2263 i, track->enc->sample_rate);
2267 }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
2268 track->timescale = st->codec->time_base.den;
2271 track->height = st->codec->height;
2273 av_set_pts_info(st, 64, 1, track->timescale);
2276 mov_write_mdat_tag(pb, mov);
2278 #if FF_API_TIMESTAMP
2280 mov->time = s->timestamp;
2283 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
2284 mov->time = ff_iso8601_to_unix_time(t->value);
2285 mov->time += 0x7C25B080; //1970 based -> 1904 based
2287 if (mov->chapter_track)
2288 mov_create_chapter_track(s, mov->chapter_track);
2290 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
2291 /* Initialize the hint tracks for each audio and video stream */
2292 for (i = 0; i < s->nb_streams; i++) {
2293 AVStream *st = s->streams[i];
2294 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2295 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2296 ff_mov_init_hinting(s, hint_track, i);
2306 av_freep(&mov->tracks);
2310 static int mov_write_trailer(AVFormatContext *s)
2312 MOVMuxContext *mov = s->priv_data;
2313 AVIOContext *pb = s->pb;
2317 int64_t moov_pos = avio_tell(pb);
2319 /* Write size of mdat tag */
2320 if (mov->mdat_size+8 <= UINT32_MAX) {
2321 avio_seek(pb, mov->mdat_pos, SEEK_SET);
2322 avio_wb32(pb, mov->mdat_size+8);
2324 /* overwrite 'wide' placeholder atom */
2325 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
2326 avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */
2327 ffio_wfourcc(pb, "mdat");
2328 avio_wb64(pb, mov->mdat_size+16);
2330 avio_seek(pb, moov_pos, SEEK_SET);
2332 mov_write_moov_tag(pb, mov, s);
2334 if (mov->chapter_track)
2335 av_freep(&mov->tracks[mov->chapter_track].enc);
2337 for (i=0; i<mov->nb_streams; i++) {
2338 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
2339 ff_mov_close_hinting(&mov->tracks[i]);
2340 av_freep(&mov->tracks[i].cluster);
2342 if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);
2348 av_freep(&mov->tracks);
2353 #if CONFIG_MOV_MUXER
2354 AVOutputFormat ff_mov_muxer = {
2356 .long_name = NULL_IF_CONFIG_SMALL("MOV format"),
2357 .extensions = "mov",
2358 .priv_data_size = sizeof(MOVMuxContext),
2359 .audio_codec = CODEC_ID_AAC,
2360 #if CONFIG_LIBX264_ENCODER
2361 .video_codec = CODEC_ID_H264,
2363 .video_codec = CODEC_ID_MPEG4,
2365 .write_header = mov_write_header,
2366 .write_packet = ff_mov_write_packet,
2367 .write_trailer = mov_write_trailer,
2368 .flags = AVFMT_GLOBALHEADER,
2369 .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},
2370 .priv_class = &mov_muxer_class,
2373 #if CONFIG_TGP_MUXER
2374 AVOutputFormat ff_tgp_muxer = {
2376 .long_name = NULL_IF_CONFIG_SMALL("3GP format"),
2377 .extensions = "3gp",
2378 .priv_data_size = sizeof(MOVMuxContext),
2379 .audio_codec = CODEC_ID_AMR_NB,
2380 .video_codec = CODEC_ID_H263,
2381 .write_header = mov_write_header,
2382 .write_packet = ff_mov_write_packet,
2383 .write_trailer = mov_write_trailer,
2384 .flags = AVFMT_GLOBALHEADER,
2385 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2386 .priv_class = &mov_muxer_class,
2389 #if CONFIG_MP4_MUXER
2390 AVOutputFormat ff_mp4_muxer = {
2392 .long_name = NULL_IF_CONFIG_SMALL("MP4 format"),
2393 .mime_type = "application/mp4",
2394 .extensions = "mp4",
2395 .priv_data_size = sizeof(MOVMuxContext),
2396 .audio_codec = CODEC_ID_AAC,
2397 #if CONFIG_LIBX264_ENCODER
2398 .video_codec = CODEC_ID_H264,
2400 .video_codec = CODEC_ID_MPEG4,
2402 .write_header = mov_write_header,
2403 .write_packet = ff_mov_write_packet,
2404 .write_trailer = mov_write_trailer,
2405 .flags = AVFMT_GLOBALHEADER,
2406 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2407 .priv_class = &mov_muxer_class,
2410 #if CONFIG_PSP_MUXER
2411 AVOutputFormat ff_psp_muxer = {
2413 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 format"),
2414 .extensions = "mp4,psp",
2415 .priv_data_size = sizeof(MOVMuxContext),
2416 .audio_codec = CODEC_ID_AAC,
2417 #if CONFIG_LIBX264_ENCODER
2418 .video_codec = CODEC_ID_H264,
2420 .video_codec = CODEC_ID_MPEG4,
2422 .write_header = mov_write_header,
2423 .write_packet = ff_mov_write_packet,
2424 .write_trailer = mov_write_trailer,
2425 .flags = AVFMT_GLOBALHEADER,
2426 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2427 .priv_class = &mov_muxer_class,
2430 #if CONFIG_TG2_MUXER
2431 AVOutputFormat ff_tg2_muxer = {
2433 .long_name = NULL_IF_CONFIG_SMALL("3GP2 format"),
2434 .extensions = "3g2",
2435 .priv_data_size = sizeof(MOVMuxContext),
2436 .audio_codec = CODEC_ID_AMR_NB,
2437 .video_codec = CODEC_ID_H263,
2438 .write_header = mov_write_header,
2439 .write_packet = ff_mov_write_packet,
2440 .write_trailer = mov_write_trailer,
2441 .flags = AVFMT_GLOBALHEADER,
2442 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2443 .priv_class = &mov_muxer_class,
2446 #if CONFIG_IPOD_MUXER
2447 AVOutputFormat ff_ipod_muxer = {
2449 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),
2450 .mime_type = "application/mp4",
2451 .extensions = "m4v,m4a",
2452 .priv_data_size = sizeof(MOVMuxContext),
2453 .audio_codec = CODEC_ID_AAC,
2454 .video_codec = CODEC_ID_H264,
2455 .write_header = mov_write_header,
2456 .write_packet = ff_mov_write_packet,
2457 .write_trailer = mov_write_trailer,
2458 .flags = AVFMT_GLOBALHEADER,
2459 .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},
2460 .priv_class = &mov_muxer_class,